[Midnightbsd-cvs] src [6708] vendor/MirOS/mksh/R50: tag R50
laffer1 at midnightbsd.org
laffer1 at midnightbsd.org
Tue Jul 1 08:01:18 EDT 2014
Revision: 6708
http://svnweb.midnightbsd.org/src/?rev=6708
Author: laffer1
Date: 2014-07-01 08:01:17 -0400 (Tue, 01 Jul 2014)
Log Message:
-----------
tag R50
Revision Links:
--------------
http://svnweb.midnightbsd.org/src/?rev=50
Added Paths:
-----------
vendor/MirOS/mksh/R50/
vendor/MirOS/mksh/R50/Build.sh
vendor/MirOS/mksh/R50/check.pl
vendor/MirOS/mksh/R50/check.t
vendor/MirOS/mksh/R50/dot.mkshrc
vendor/MirOS/mksh/R50/edit.c
vendor/MirOS/mksh/R50/eval.c
vendor/MirOS/mksh/R50/exec.c
vendor/MirOS/mksh/R50/expr.c
vendor/MirOS/mksh/R50/funcs.c
vendor/MirOS/mksh/R50/histrap.c
vendor/MirOS/mksh/R50/jobs.c
vendor/MirOS/mksh/R50/lex.c
vendor/MirOS/mksh/R50/main.c
vendor/MirOS/mksh/R50/mirhash.h
vendor/MirOS/mksh/R50/misc.c
vendor/MirOS/mksh/R50/mksh.1
vendor/MirOS/mksh/R50/rlimits.opt
vendor/MirOS/mksh/R50/sh.h
vendor/MirOS/mksh/R50/sh_flags.opt
vendor/MirOS/mksh/R50/shf.c
vendor/MirOS/mksh/R50/strlcpy.c
vendor/MirOS/mksh/R50/syn.c
vendor/MirOS/mksh/R50/tree.c
vendor/MirOS/mksh/R50/var.c
Removed Paths:
-------------
vendor/MirOS/mksh/R50/Build.sh
vendor/MirOS/mksh/R50/check.pl
vendor/MirOS/mksh/R50/check.t
vendor/MirOS/mksh/R50/dot.mkshrc
vendor/MirOS/mksh/R50/edit.c
vendor/MirOS/mksh/R50/eval.c
vendor/MirOS/mksh/R50/exec.c
vendor/MirOS/mksh/R50/expr.c
vendor/MirOS/mksh/R50/funcs.c
vendor/MirOS/mksh/R50/histrap.c
vendor/MirOS/mksh/R50/jobs.c
vendor/MirOS/mksh/R50/lex.c
vendor/MirOS/mksh/R50/main.c
vendor/MirOS/mksh/R50/misc.c
vendor/MirOS/mksh/R50/mksh.1
vendor/MirOS/mksh/R50/sh.h
vendor/MirOS/mksh/R50/shf.c
vendor/MirOS/mksh/R50/strlcpy.c
vendor/MirOS/mksh/R50/syn.c
vendor/MirOS/mksh/R50/tree.c
vendor/MirOS/mksh/R50/var.c
Deleted: vendor/MirOS/mksh/R50/Build.sh
===================================================================
--- vendor/MirOS/mksh/dist/Build.sh 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/Build.sh 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,2435 +0,0 @@
-#!/bin/sh
-srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.645 2013/08/10 13:44:25 tg Exp $'
-#-
-# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-# 2011, 2012, 2013
-# Thorsten Glaser <tg at mirbsd.org>
-#
-# Provided that these terms and disclaimer and all copyright notices
-# are retained or reproduced in an accompanying document, permission
-# is granted to deal in this work without restriction, including un-
-# limited rights to use, publicly perform, distribute, sell, modify,
-# merge, give away, or sublicence.
-#
-# This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
-# the utmost extent permitted by applicable law, neither express nor
-# implied; without malicious intent or gross negligence. In no event
-# may a licensor, author or contributor be held liable for indirect,
-# direct, other damage, loss, or other issues arising in any way out
-# of dealing in the work, even if advised of the possibility of such
-# damage or existence of a defect, except proven that it results out
-# of said person's immediate fault when using the work as intended.
-#-
-# People analysing the output must whitelist conftest.c for any kind
-# of compiler warning checks (mirtoconf is by design not quiet).
-#
-# Used environment documentation is at the end of this file.
-
-LC_ALL=C
-export LC_ALL
-
-echo "For the build logs, demonstrate that /dev/null and /dev/tty exist:"
-ls -l /dev/null /dev/tty
-
-case $ZSH_VERSION:$VERSION in
-:zsh*) ZSH_VERSION=2 ;;
-esac
-
-if test -n "${ZSH_VERSION+x}" && (emulate sh) >/dev/null 2>&1; then
- emulate sh
- NULLCMD=:
-fi
-
-if test -d /usr/xpg4/bin/. >/dev/null 2>&1; then
- # Solaris: some of the tools have weird behaviour, use portable ones
- PATH=/usr/xpg4/bin:$PATH
- export PATH
-fi
-
-v() {
- $e "$*"
- eval "$@"
-}
-
-vv() {
- _c=$1
- shift
- $e "\$ $*" 2>&1
- eval "$@" >vv.out 2>&1
- sed "s^${_c} " <vv.out
-}
-
-vq() {
- eval "$@"
-}
-
-rmf() {
- for _f in "$@"; do
- case $_f in
- Build.sh|check.pl|check.t|dot.mkshrc|*.c|*.h|*.ico|*.1) ;;
- *) rm -f "$_f" ;;
- esac
- done
-}
-
-allu=QWERTYUIOPASDFGHJKLZXCVBNM
-alll=qwertyuiopasdfghjklzxcvbnm
-alln=0123456789
-alls=______________________________________________________________
-nl='
-'
-tcfn=no
-bi=
-ui=
-ao=
-fx=
-me=`basename "$0"`
-orig_CFLAGS=$CFLAGS
-phase=x
-oldish_ed=stdout-ed,no-stderr-ed
-
-if test -t 1; then
- bi='[1m'
- ui='[4m'
- ao='[0m'
-fi
-
-upper() {
- echo :"$@" | sed 's/^://' | tr $alll $allu
-}
-
-# clean up after ac_testrun()
-ac_testdone() {
- eval HAVE_$fu=$fv
- fr=no
- test 0 = $fv || fr=yes
- $e "$bi==> $fd...$ao $ui$fr$ao$fx"
- fx=
-}
-
-# ac_cache label: sets f, fu, fv?=0
-ac_cache() {
- f=$1
- fu=`upper $f`
- eval fv=\$HAVE_$fu
- case $fv in
- 0|1)
- fx=' (cached)'
- return 0
- ;;
- esac
- fv=0
- return 1
-}
-
-# ac_testinit label [!] checkif[!]0 [setlabelifcheckis[!]0] useroutput
-# returns 1 if value was cached/implied, 0 otherwise: call ac_testdone
-ac_testinit() {
- if ac_cache $1; then
- test x"$2" = x"!" && shift
- test x"$2" = x"" || shift
- fd=${3-$f}
- ac_testdone
- return 1
- fi
- fc=0
- if test x"$2" = x""; then
- ft=1
- else
- if test x"$2" = x"!"; then
- fc=1
- shift
- fi
- eval ft=\$HAVE_`upper $2`
- shift
- fi
- fd=${3-$f}
- if test $fc = "$ft"; then
- fv=$2
- fx=' (implied)'
- ac_testdone
- return 1
- fi
- $e ... $fd
- return 0
-}
-
-# pipe .c | ac_test[n] [!] label [!] checkif[!]0 [setlabelifcheckis[!]0] useroutput
-ac_testnnd() {
- if test x"$1" = x"!"; then
- fr=1
- shift
- else
- fr=0
- fi
- ac_testinit "$@" || return 1
- cat >conftest.c
- vv ']' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN conftest.c $LIBS $ccpr"
- test $tcfn = no && test -f a.out && tcfn=a.out
- test $tcfn = no && test -f a.exe && tcfn=a.exe
- test $tcfn = no && test -f conftest && tcfn=conftest
- if test -f $tcfn; then
- test 1 = $fr || fv=1
- else
- test 0 = $fr || fv=1
- fi
- vscan=
- if test $phase = u; then
- test $ct = gcc && vscan='unrecogni[sz]ed'
- test $ct = hpcc && vscan='unsupported'
- test $ct = pcc && vscan='unsupported'
- test $ct = sunpro && vscan='-e ignored -e turned.off'
- fi
- test -n "$vscan" && grep $vscan vv.out >/dev/null 2>&1 && fv=$fr
- return 0
-}
-ac_testn() {
- ac_testnnd "$@" || return
- rmf conftest.c conftest.o ${tcfn}* vv.out
- ac_testdone
-}
-
-# ac_ifcpp cppexpr [!] label [!] checkif[!]0 [setlabelifcheckis[!]0] useroutput
-ac_ifcpp() {
- expr=$1; shift
- ac_testn "$@" <<-EOF
- extern int thiswillneverbedefinedIhope(void);
- int main(void) { return (
- #$expr
- 0
- #else
- /* force a failure: expr is false */
- thiswillneverbedefinedIhope()
- #endif
- ); }
-EOF
- test x"$1" = x"!" && shift
- f=$1
- fu=`upper $f`
- eval fv=\$HAVE_$fu
- test x"$fv" = x"1"
-}
-
-add_cppflags() {
- CPPFLAGS="$CPPFLAGS $*"
-}
-
-ac_cppflags() {
- test x"$1" = x"" || fu=$1
- fv=$2
- test x"$2" = x"" && eval fv=\$HAVE_$fu
- add_cppflags -DHAVE_$fu=$fv
-}
-
-ac_test() {
- ac_testn "$@"
- ac_cppflags
-}
-
-# ac_flags [-] add varname cflags [text] [ldflags]
-ac_flags() {
- if test x"$1" = x"-"; then
- shift
- hf=1
- else
- hf=0
- fi
- fa=$1
- vn=$2
- f=$3
- ft=$4
- fl=$5
- test x"$ft" = x"" && ft="if $f can be used"
- save_CFLAGS=$CFLAGS
- CFLAGS="$CFLAGS $f"
- if test -n "$fl"; then
- save_LDFLAGS=$LDFLAGS
- LDFLAGS="$LDFLAGS $fl"
- fi
- if test 1 = $hf; then
- ac_testn can_$vn '' "$ft"
- else
- ac_testn can_$vn '' "$ft" <<-'EOF'
- /* evil apo'stroph in comment test */
- int main(void) { return (0); }
- EOF
- fi
- eval fv=\$HAVE_CAN_`upper $vn`
- if test -n "$fl"; then
- test 11 = $fa$fv || LDFLAGS=$save_LDFLAGS
- fi
- test 11 = $fa$fv || CFLAGS=$save_CFLAGS
-}
-
-# ac_header [!] header [prereq ...]
-ac_header() {
- if test x"$1" = x"!"; then
- na=1
- shift
- else
- na=0
- fi
- hf=$1; shift
- hv=`echo "$hf" | tr -d '\012\015' | tr -c $alll$allu$alln $alls`
- echo "/* NeXTstep bug workaround */" >x
- for i
- do
- case $i in
- _time)
- echo '#if HAVE_BOTH_TIME_H' >>x
- echo '#include <sys/time.h>' >>x
- echo '#include <time.h>' >>x
- echo '#elif HAVE_SYS_TIME_H' >>x
- echo '#include <sys/time.h>' >>x
- echo '#elif HAVE_TIME_H' >>x
- echo '#include <time.h>' >>x
- echo '#endif' >>x
- ;;
- *)
- echo "#include <$i>" >>x
- ;;
- esac
- done
- echo "#include <$hf>" >>x
- echo 'int main(void) { return (0); }' >>x
- ac_testn "$hv" "" "<$hf>" <x
- rmf x
- test 1 = $na || ac_cppflags
-}
-
-addsrcs() {
- addsrcs_s=0
- if test x"$1" = x"-s"; then
- # optstatic
- addsrcs_s=1
- shift
- fi
- if test x"$1" = x"!"; then
- fr=0
- shift
- else
- fr=1
- fi
- eval i=\$$1
- if test $addsrcs_s = 1; then
- if test -f "$2" || test -f "$srcdir/$2"; then
- # always add $2, since it exists
- fr=1
- i=1
- fi
- fi
- test $fr = "$i" && case " $SRCS " in
- *\ $2\ *) ;;
- *) SRCS="$SRCS $2" ;;
- esac
-}
-
-
-curdir=`pwd` srcdir=`dirname "$0" 2>/dev/null` check_categories=
-test -n "$srcdir" || srcdir=. # in case dirname does not exist
-dstversion=`sed -n '/define MKSH_VERSION/s/^.*"\([^"]*\)".*$/\1/p' $srcdir/sh.h`
-add_cppflags -DMKSH_BUILDSH
-
-e=echo
-r=0
-eq=0
-pm=0
-cm=normal
-optflags=-std-compile-opts
-last=
-tfn=
-legacy=0
-
-for i
-do
- case $last:$i in
- c:combine|c:dragonegg|c:llvm|c:lto)
- cm=$i
- last=
- ;;
- c:*)
- echo "$me: Unknown option -c '$i'!" >&2
- exit 1
- ;;
- o:*)
- optflags=$i
- last=
- ;;
- t:*)
- tfn=$i
- last=
- ;;
- :-c)
- last=c
- ;;
- :-g)
- # checker, debug, valgrind build
- add_cppflags -DDEBUG
- CFLAGS="$CFLAGS -g3 -fno-builtin"
- ;;
- :-j)
- pm=1
- ;;
- :-L)
- legacy=1
- ;;
- :+L)
- legacy=0
- ;;
- :-M)
- cm=makefile
- ;;
- :-O)
- optflags=-std-compile-opts
- ;;
- :-o)
- last=o
- ;;
- :-Q)
- eq=1
- ;;
- :-r)
- r=1
- ;;
- :-t)
- last=t
- ;;
- :-v)
- echo "Build.sh $srcversion"
- echo "for mksh $dstversion"
- exit 0
- ;;
- :*)
- echo "$me: Unknown option '$i'!" >&2
- exit 1
- ;;
- *)
- echo "$me: Unknown option -'$last' '$i'!" >&2
- exit 1
- ;;
- esac
-done
-if test -n "$last"; then
- echo "$me: Option -'$last' not followed by argument!" >&2
- exit 1
-fi
-
-test -z "$tfn" && if test $legacy = 0; then
- tfn=mksh
-else
- tfn=lksh
-fi
-if test -d $tfn || test -d $tfn.exe; then
- echo "$me: Error: ./$tfn is a directory!" >&2
- exit 1
-fi
-rmf a.exe* a.out* conftest.c *core core.* lft ${tfn}* no *.bc *.ll *.o \
- Rebuild.sh signames.inc test.sh x vv.out
-
-SRCS="lalloc.c eval.c exec.c expr.c funcs.c histrap.c jobs.c"
-SRCS="$SRCS lex.c main.c misc.c shf.c syn.c tree.c var.c"
-
-if test $legacy = 0; then
- SRCS="$SRCS edit.c"
- check_categories="$check_categories shell:legacy-no int:32"
-else
- check_categories="$check_categories shell:legacy-yes"
- add_cppflags -DMKSH_LEGACY_MODE
- HAVE_PERSISTENT_HISTORY=0
- HAVE_ISSET_MKSH_CONSERVATIVE_FDS=1 # from sh.h
-fi
-
-if test x"$srcdir" = x"."; then
- CPPFLAGS="-I. $CPPFLAGS"
-else
- CPPFLAGS="-I. -I'$srcdir' $CPPFLAGS"
-fi
-test -n "$LDSTATIC" && if test -n "$LDFLAGS"; then
- LDFLAGS="$LDFLAGS $LDSTATIC"
-else
- LDFLAGS=$LDSTATIC
-fi
-
-if test -z "$TARGET_OS"; then
- x=`uname -s 2>/dev/null || uname`
- test x"$x" = x"`uname -n 2>/dev/null`" || TARGET_OS=$x
-fi
-if test -z "$TARGET_OS"; then
- echo "$me: Set TARGET_OS, your uname is broken!" >&2
- exit 1
-fi
-oswarn=
-ccpc=-Wc,
-ccpl=-Wl,
-tsts=
-ccpr='|| for _f in ${tcfn}*; do case $_f in Build.sh|check.pl|check.t|dot.mkshrc|*.c|*.h|*.ico|*.1) ;; *) rm -f "$_f" ;; esac; done'
-
-# Evil hack
-if test x"$TARGET_OS" = x"Android"; then
- check_categories="$check_categories android"
- TARGET_OS=Linux
-fi
-
-# Evil OS
-if test x"$TARGET_OS" = x"Minix"; then
- echo >&2 "
-WARNING: additional checks before running Build.sh required!
-You can avoid these by calling Build.sh correctly, see below.
-"
- cat >conftest.c <<'EOF'
-#include <sys/types.h>
-const char *
-#ifdef _NETBSD_SOURCE
-ct="Ninix3"
-#else
-ct="Minix3"
-#endif
-;
-EOF
- ct=unknown
- vv ']' "${CC-cc} -E $CFLAGS $CPPFLAGS $NOWARN conftest.c | grep ct= | tr -d \\\\015 >x"
- sed 's/^/[ /' x
- eval `cat x`
- rmf x vv.out
- case $ct in
- Minix3|Ninix3)
- echo >&2 "
-Warning: you set TARGET_OS to $TARGET_OS but that is ambiguous.
-Please set it to either Minix3 or Ninix3, whereas the latter is
-all versions of Minix with even partial NetBSD(R) userland. The
-value determined from your compiler for the current compilation
-(which may be wrong) is: $ct
-"
- TARGET_OS=$ct
- ;;
- *)
- echo >&2 "
-Warning: you set TARGET_OS to $TARGET_OS but that is ambiguous.
-Please set it to either Minix3 or Ninix3, whereas the latter is
-all versions of Minix with even partial NetBSD(R) userland. The
-proper value couldn't be determined, continue at your own risk.
-"
- ;;
- esac
-fi
-
-# Configuration depending on OS revision, on OSes that need them
-case $TARGET_OS in
-NEXTSTEP)
- test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`hostinfo 2>&1 | \
- grep 'NeXT Mach [0-9][0-9.]*:' | \
- sed 's/^.*NeXT Mach \([0-9][0-9.]*\):.*$/\1/'`
- ;;
-QNX|SCO_SV)
- test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`uname -r`
- ;;
-esac
-
-# Configuration depending on OS name
-case $TARGET_OS in
-386BSD)
- : ${HAVE_CAN_OTWO=0}
- add_cppflags -DMKSH_NO_SIGSETJMP
- add_cppflags -DMKSH_TYPEDEF_SIG_ATOMIC_T=int
- add_cppflags -DMKSH_CONSERVATIVE_FDS
- ;;
-AIX)
- add_cppflags -D_ALL_SOURCE
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-BeOS)
- case $KSH_VERSION in
- *MIRBSD\ KSH*)
- oswarn="; it has minor issues"
- ;;
- *)
- oswarn="; you must recompile mksh with"
- oswarn="$oswarn${nl}itself in a second stage"
- ;;
- esac
- # BeOS has no real tty either
- add_cppflags -DMKSH_UNEMPLOYED
- add_cppflags -DMKSH_DISABLE_TTY_WARNING
- # BeOS doesn't have different UIDs and GIDs
- add_cppflags -DMKSH__NO_SETEUGID
- ;;
-BSD/OS)
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-Coherent)
- oswarn="; it has major issues"
- add_cppflags -DMKSH__NO_SYMLINK
- check_categories="$check_categories nosymlink"
- add_cppflags -DMKSH__NO_SETEUGID
- add_cppflags -DMKSH_CONSERVATIVE_FDS
- add_cppflags -DMKSH_DISABLE_TTY_WARNING
- ;;
-CYGWIN*)
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-Darwin)
- add_cppflags -D_DARWIN_C_SOURCE
- ;;
-DragonFly)
- ;;
-FreeBSD)
- ;;
-FreeMiNT)
- oswarn="; it has minor issues"
- add_cppflags -D_GNU_SOURCE
- add_cppflags -DMKSH_CONSERVATIVE_FDS
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-GNU)
- case $CC in
- *tendracc*) ;;
- *) add_cppflags -D_GNU_SOURCE ;;
- esac
- # define MKSH__NO_PATH_MAX to use Hurd-only functions
- add_cppflags -DMKSH__NO_PATH_MAX
- ;;
-GNU/kFreeBSD)
- case $CC in
- *tendracc*) ;;
- *) add_cppflags -D_GNU_SOURCE ;;
- esac
- ;;
-Haiku)
- add_cppflags -DMKSH_ASSUME_UTF8; HAVE_ISSET_MKSH_ASSUME_UTF8=1
- ;;
-HP-UX)
- ;;
-Interix)
- ccpc='-X '
- ccpl='-Y '
- add_cppflags -D_ALL_SOURCE
- : ${LIBS='-lcrypt'}
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-IRIX*)
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-Linux)
- case $CC in
- *tendracc*) ;;
- *) add_cppflags -D_GNU_SOURCE ;;
- esac
- add_cppflags -DSETUID_CAN_FAIL_WITH_EAGAIN
- : ${HAVE_REVOKE=0}
- ;;
-LynxOS)
- oswarn="; it has minor issues"
- ;;
-MidnightBSD)
- ;;
-Minix-vmd)
- add_cppflags -DMKSH__NO_SETEUGID
- add_cppflags -DMKSH_UNEMPLOYED
- add_cppflags -DMKSH_CONSERVATIVE_FDS
- add_cppflags -D_MINIX_SOURCE
- oldish_ed=no-stderr-ed # no /bin/ed, maybe see below
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-Minix3)
- add_cppflags -DMKSH_UNEMPLOYED
- add_cppflags -DMKSH_CONSERVATIVE_FDS
- add_cppflags -DMKSH_NO_LIMITS
- add_cppflags -D_POSIX_SOURCE -D_POSIX_1_SOURCE=2 -D_MINIX
- oldish_ed=no-stderr-ed # /usr/bin/ed(!) is broken
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-MirBSD)
- ;;
-MSYS_*)
- add_cppflags -DMKSH_ASSUME_UTF8=0; HAVE_ISSET_MKSH_ASSUME_UTF8=1
- # almost same as CYGWIN* (from RT|Chatzilla)
- : ${HAVE_SETLOCALE_CTYPE=0}
- # broken on this OE (from ir0nh34d)
- : ${HAVE_STDINT_H=0}
- ;;
-NetBSD)
- ;;
-NEXTSTEP)
- add_cppflags -D_NEXT_SOURCE
- add_cppflags -D_POSIX_SOURCE
- : ${AWK=gawk} ${CC=cc -posix}
- add_cppflags -DMKSH_NO_SIGSETJMP
- # NeXTstep cannot get a controlling tty
- add_cppflags -DMKSH_UNEMPLOYED
- case $TARGET_OSREV in
- 4.2*)
- # OpenStep 4.2 is broken by default
- oswarn="; it needs libposix.a"
- ;;
- esac
- add_cppflags -DMKSH_CONSERVATIVE_FDS
- ;;
-Ninix3)
- # similar to Minix3
- add_cppflags -DMKSH_UNEMPLOYED
- add_cppflags -DMKSH_CONSERVATIVE_FDS
- add_cppflags -DMKSH_NO_LIMITS
- # but no idea what else could be needed
- oswarn="; it has unknown issues"
- ;;
-OpenBSD)
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-OSF1)
- HAVE_SIG_T=0 # incompatible
- add_cppflags -D_OSF_SOURCE
- add_cppflags -D_POSIX_C_SOURCE=200112L
- add_cppflags -D_XOPEN_SOURCE=600
- add_cppflags -D_XOPEN_SOURCE_EXTENDED
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-Plan9)
- add_cppflags -D_POSIX_SOURCE
- add_cppflags -D_LIMITS_EXTENSION
- add_cppflags -D_BSD_EXTENSION
- add_cppflags -D_SUSV2_SOURCE
- add_cppflags -DMKSH_ASSUME_UTF8; HAVE_ISSET_MKSH_ASSUME_UTF8=1
- add_cppflags -DMKSH_NO_CMDLINE_EDITING
- add_cppflags -DMKSH__NO_SETEUGID
- oswarn=' and will currently not work'
- add_cppflags -DMKSH_UNEMPLOYED
- # this is for detecting kencc
- add_cppflags -DMKSH_MAYBE_KENCC
- ;;
-PW32*)
- HAVE_SIG_T=0 # incompatible
- oswarn=' and will currently not work'
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-QNX)
- add_cppflags -D__NO_EXT_QNX
- add_cppflags -D__EXT_UNIX_MISC
- case $TARGET_OSREV in
- [012345].*|6.[0123].*|6.4.[01])
- oldish_ed=no-stderr-ed # oldish /bin/ed is broken
- ;;
- esac
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-SCO_SV)
- case $TARGET_OSREV in
- 3.2*)
- # SCO OpenServer 5
- add_cppflags -DMKSH_UNEMPLOYED
- ;;
- 5*)
- # SCO OpenServer 6
- ;;
- *)
- oswarn='; this is an unknown version of'
- oswarn="$oswarn$nl$TARGET_OS ${TARGET_OSREV}, please tell me what to do"
- ;;
- esac
- add_cppflags -DMKSH_CONSERVATIVE_FDS
- : ${HAVE_SYS_SIGLIST=0} ${HAVE__SYS_SIGLIST=0}
- ;;
-skyos)
- oswarn="; it has minor issues"
- ;;
-SunOS)
- add_cppflags -D_BSD_SOURCE
- add_cppflags -D__EXTENSIONS__
- ;;
-syllable)
- add_cppflags -D_GNU_SOURCE
- add_cppflags -DMKSH_NO_SIGSUSPEND
- oswarn=' and will currently not work'
- ;;
-ULTRIX)
- : ${CC=cc -YPOSIX}
- add_cppflags -DMKSH_TYPEDEF_SSIZE_T=int
- add_cppflags -DMKSH_CONSERVATIVE_FDS
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-UnixWare|UNIX_SV)
- # SCO UnixWare
- add_cppflags -DMKSH_CONSERVATIVE_FDS
- : ${HAVE_SYS_SIGLIST=0} ${HAVE__SYS_SIGLIST=0}
- ;;
-UWIN*)
- ccpc='-Yc,'
- ccpl='-Yl,'
- tsts=" 3<>/dev/tty"
- oswarn="; it will compile, but the target"
- oswarn="$oswarn${nl}platform itself is very flakey/unreliable"
- : ${HAVE_SETLOCALE_CTYPE=0}
- ;;
-_svr4)
- # generic target for SVR4 Unix with uname -s = uname -n
- # this duplicates the * target below
- oswarn='; it may or may not work'
- test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`uname -r`
- ;;
-*)
- oswarn='; it may or may not work'
- test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`uname -r`
- ;;
-esac
-
-: ${HAVE_MKNOD=0}
-
-: ${AWK=awk} ${CC=cc} ${NROFF=nroff} ${SIZE=size}
-test 0 = $r && echo | $NROFF -v 2>&1 | grep GNU >/dev/null 2>&1 && \
- NROFF="$NROFF -c"
-
-# this aids me in tracing FTBFSen without access to the buildd
-$e "Hi from$ao $bi$srcversion$ao on:"
-case $TARGET_OS in
-AIX)
- vv '|' "oslevel >&2"
- vv '|' "uname -a >&2"
- ;;
-Darwin)
- vv '|' "hwprefs machine_type os_type os_class >&2"
- vv '|' "uname -a >&2"
- ;;
-IRIX*)
- vv '|' "uname -a >&2"
- vv '|' "hinv -v >&2"
- ;;
-OSF1)
- vv '|' "uname -a >&2"
- vv '|' "/usr/sbin/sizer -v >&2"
- ;;
-SCO_SV|UnixWare|UNIX_SV)
- vv '|' "uname -a >&2"
- vv '|' "uname -X >&2"
- ;;
-*)
- vv '|' "uname -a >&2"
- ;;
-esac
-test -z "$oswarn" || echo >&2 "
-Warning: mksh has not yet been ported to or tested on your
-operating system '$TARGET_OS'$oswarn. If you can provide
-a shell account to the developer, this may improve; please
-drop us a success or failure notice or even send in diffs.
-"
-$e "$bi$me: Building the MirBSD Korn Shell$ao $ui$dstversion$ao on $TARGET_OS ${TARGET_OSREV}..."
-
-#
-# Begin of mirtoconf checks
-#
-$e $bi$me: Scanning for functions... please ignore any errors.$ao
-
-#
-# Compiler: which one?
-#
-# notes:
-# - ICC defines __GNUC__ too
-# - GCC defines __hpux too
-# - LLVM+clang defines __GNUC__ too
-# - nwcc defines __GNUC__ too
-CPP="$CC -E"
-$e ... which compiler seems to be used
-cat >conftest.c <<'EOF'
-const char *
-#if defined(__ICC) || defined(__INTEL_COMPILER)
-ct="icc"
-#elif defined(__xlC__) || defined(__IBMC__)
-ct="xlc"
-#elif defined(__SUNPRO_C)
-ct="sunpro"
-#elif defined(__ACK__)
-ct="ack"
-#elif defined(__BORLANDC__)
-ct="bcc"
-#elif defined(__WATCOMC__)
-ct="watcom"
-#elif defined(__MWERKS__)
-ct="metrowerks"
-#elif defined(__HP_cc)
-ct="hpcc"
-#elif defined(__DECC) || (defined(__osf__) && !defined(__GNUC__))
-ct="dec"
-#elif defined(__PGI)
-ct="pgi"
-#elif defined(__DMC__)
-ct="dmc"
-#elif defined(_MSC_VER)
-ct="msc"
-#elif defined(__ADSPBLACKFIN__) || defined(__ADSPTS__) || defined(__ADSP21000__)
-ct="adsp"
-#elif defined(__IAR_SYSTEMS_ICC__)
-ct="iar"
-#elif defined(SDCC)
-ct="sdcc"
-#elif defined(__PCC__)
-ct="pcc"
-#elif defined(__TenDRA__)
-ct="tendra"
-#elif defined(__TINYC__)
-ct="tcc"
-#elif defined(__llvm__) && defined(__clang__)
-ct="clang"
-#elif defined(__NWCC__)
-ct="nwcc"
-#elif defined(__GNUC__)
-ct="gcc"
-#elif defined(_COMPILER_VERSION)
-ct="mipspro"
-#elif defined(__sgi)
-ct="mipspro"
-#elif defined(__hpux) || defined(__hpua)
-ct="hpcc"
-#elif defined(__ultrix)
-ct="ucode"
-#elif defined(__USLC__)
-ct="uslc"
-#elif defined(__LCC__)
-ct="lcc"
-#elif defined(MKSH_MAYBE_KENCC)
-/* and none of the above matches */
-ct="kencc"
-#else
-ct="unknown"
-#endif
-;
-const char *
-#if defined(__KLIBC__)
-et="klibc"
-#else
-et="unknown"
-#endif
-;
-EOF
-ct=untested
-et=untested
-vv ']' "$CPP $CFLAGS $CPPFLAGS $NOWARN conftest.c | \
- sed -n '/^ *[ce]t *= */s/^ *\([ce]t\) *= */\1=/p' | tr -d \\\\015 >x"
-sed 's/^/[ /' x
-eval `cat x`
-rmf x vv.out
-echo 'int main(void) { return (0); }' >conftest.c
-case $ct in
-ack)
- # work around "the famous ACK const bug"
- CPPFLAGS="-Dconst= $CPPFLAGS"
- ;;
-adsp)
- echo >&2 'Warning: Analog Devices C++ compiler for Blackfin, TigerSHARC
- and SHARC (21000) DSPs detected. This compiler has not yet
- been tested for compatibility with mksh. Continue at your
- own risk, please report success/failure to the developers.'
- ;;
-bcc)
- echo >&2 "Warning: Borland C++ Builder detected. This compiler might
- produce broken executables. Continue at your own risk,
- please report success/failure to the developers."
- ;;
-clang)
- # does not work with current "ccc" compiler driver
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -version"
- # one of these two works, for now
- vv '|' "${CLANG-clang} -version"
- vv '|' "${CLANG-clang} --version"
- # ensure compiler and linker are in sync unless overridden
- case $CCC_CC:$CCC_LD in
- :*) ;;
- *:) CCC_LD=$CCC_CC; export CCC_LD ;;
- esac
- ;;
-dec)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V"
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -Wl,-V conftest.c $LIBS"
- ;;
-dmc)
- echo >&2 "Warning: Digital Mars Compiler detected. When running under"
- echo >&2 " UWIN, mksh tends to be unstable due to the limitations"
- echo >&2 " of this platform. Continue at your own risk,"
- echo >&2 " please report success/failure to the developers."
- ;;
-gcc)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
- vv '|' 'echo `$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS \
- -dumpmachine` gcc`$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN \
- $LIBS -dumpversion`'
- ;;
-hpcc)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
- ;;
-iar)
- echo >&2 'Warning: IAR Systems (http://www.iar.com) compiler for embedded
- systems detected. This unsupported compiler has not yet
- been tested for compatibility with mksh. Continue at your
- own risk, please report success/failure to the developers.'
- ;;
-icc)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V"
- ;;
-kencc)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
- ;;
-lcc)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
- add_cppflags -D__inline__=__inline
- ;;
-metrowerks)
- echo >&2 'Warning: Metrowerks C compiler detected. This has not yet
- been tested for compatibility with mksh. Continue at your
- own risk, please report success/failure to the developers.'
- ;;
-mipspro)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -version"
- ;;
-msc)
- ccpr= # errorlevels are not reliable
- case $TARGET_OS in
- Interix)
- if [[ -n $C89_COMPILER ]]; then
- C89_COMPILER=`ntpath2posix -c "$C89_COMPILER"`
- else
- C89_COMPILER=CL.EXE
- fi
- if [[ -n $C89_LINKER ]]; then
- C89_LINKER=`ntpath2posix -c "$C89_LINKER"`
- else
- C89_LINKER=LINK.EXE
- fi
- vv '|' "$C89_COMPILER /HELP >&2"
- vv '|' "$C89_LINKER /LINK >&2"
- ;;
- esac
- ;;
-nwcc)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -version"
- ;;
-pcc)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -v"
- ;;
-pgi)
- echo >&2 'Warning: PGI detected. This unknown compiler has not yet
- been tested for compatibility with mksh. Continue at your
- own risk, please report success/failure to the developers.'
- ;;
-sdcc)
- echo >&2 'Warning: sdcc (http://sdcc.sourceforge.net), the small devices
- C compiler for embedded systems detected. This has not yet
- been tested for compatibility with mksh. Continue at your
- own risk, please report success/failure to the developers.'
- ;;
-sunpro)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
- ;;
-tcc)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -v"
- ;;
-tendra)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V 2>&1 | \
- fgrep -i -e version -e release"
- ;;
-ucode)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V"
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -Wl,-V conftest.c $LIBS"
- ;;
-uslc)
- case $TARGET_OS:$TARGET_OSREV in
- SCO_SV:3.2*)
- # SCO OpenServer 5
- CFLAGS="$CFLAGS -g"
- : ${HAVE_CAN_OTWO=0} ${HAVE_CAN_OPTIMISE=0}
- ;;
- esac
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
- ;;
-watcom)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
- ;;
-xlc)
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -qversion"
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -qversion=verbose"
- vv '|' "ld -V"
- ;;
-*)
- test x"$ct" = x"untested" && $e "!!! detecting preprocessor failed"
- ct=unknown
- vv "$CC --version"
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
- vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
- ;;
-esac
-case $cm in
-dragonegg|llvm)
- vv '|' "llc -version"
- ;;
-esac
-case $et in
-klibc)
- add_cppflags -DMKSH_NO_LIMITS
- ;;
-unknown)
- # nothing special detected, don’t worry
- unset et
- ;;
-*)
- # huh?
- ;;
-esac
-$e "$bi==> which compiler seems to be used...$ao $ui$ct${et+ on $et}$ao"
-rmf conftest.c conftest.o conftest a.out* a.exe* vv.out
-
-#
-# Compiler: works as-is, with -Wno-error and -Werror
-#
-save_NOWARN=$NOWARN
-NOWARN=
-DOWARN=
-ac_flags 0 compiler_works '' 'if the compiler works'
-test 1 = $HAVE_CAN_COMPILER_WORKS || exit 1
-HAVE_COMPILER_KNOWN=0
-test $ct = unknown || HAVE_COMPILER_KNOWN=1
-if ac_ifcpp 'if 0' compiler_fails '' \
- 'if the compiler does not fail correctly'; then
- save_CFLAGS=$CFLAGS
- : ${HAVE_CAN_DELEXE=x}
- case $ct in
- dec)
- CFLAGS="$CFLAGS ${ccpl}-non_shared"
- ac_testn can_delexe compiler_fails 0 'for the -non_shared linker option' <<-EOF
- int main(void) { return (0); }
- EOF
- ;;
- dmc)
- CFLAGS="$CFLAGS ${ccpl}/DELEXECUTABLE"
- ac_testn can_delexe compiler_fails 0 'for the /DELEXECUTABLE linker option' <<-EOF
- int main(void) { return (0); }
- EOF
- ;;
- *)
- exit 1
- ;;
- esac
- test 1 = $HAVE_CAN_DELEXE || CFLAGS=$save_CFLAGS
- ac_testn compiler_still_fails '' 'if the compiler still does not fail correctly' <<-EOF
- EOF
- test 1 = $HAVE_COMPILER_STILL_FAILS && exit 1
-fi
-if ac_ifcpp 'ifdef __TINYC__' couldbe_tcc '!' compiler_known 0 \
- 'if this could be tcc'; then
- ct=tcc
- CPP='cpp -D__TINYC__'
- HAVE_COMPILER_KNOWN=1
-fi
-
-case $ct in
-bcc)
- save_NOWARN="${ccpc}-w"
- DOWARN="${ccpc}-w!"
- ;;
-dec)
- # -msg_* flags not used yet, or is -w2 correct?
- ;;
-dmc)
- save_NOWARN="${ccpc}-w"
- DOWARN="${ccpc}-wx"
- ;;
-hpcc)
- save_NOWARN=
- DOWARN=+We
- ;;
-kencc)
- save_NOWARN=
- DOWARN=
- ;;
-mipspro)
- save_NOWARN=
- DOWARN="-diag_error 1-10000"
- ;;
-msc)
- save_NOWARN="${ccpc}/w"
- DOWARN="${ccpc}/WX"
- ;;
-sunpro)
- test x"$save_NOWARN" = x"" && save_NOWARN='-errwarn=%none'
- ac_flags 0 errwarnnone "$save_NOWARN"
- test 1 = $HAVE_CAN_ERRWARNNONE || save_NOWARN=
- ac_flags 0 errwarnall "-errwarn=%all"
- test 1 = $HAVE_CAN_ERRWARNALL && DOWARN="-errwarn=%all"
- ;;
-tendra)
- save_NOWARN=-w
- ;;
-ucode)
- save_NOWARN=
- DOWARN=-w2
- ;;
-watcom)
- save_NOWARN=
- DOWARN=-Wc,-we
- ;;
-xlc)
- save_NOWARN=-qflag=i:e
- DOWARN=-qflag=i:i
- ;;
-*)
- test x"$save_NOWARN" = x"" && save_NOWARN=-Wno-error
- ac_flags 0 wnoerror "$save_NOWARN"
- test 1 = $HAVE_CAN_WNOERROR || save_NOWARN=
- ac_flags 0 werror -Werror
- test 1 = $HAVE_CAN_WERROR && DOWARN=-Werror
- test $ct = icc && DOWARN="$DOWARN -wd1419"
- ;;
-esac
-NOWARN=$save_NOWARN
-
-#
-# Compiler: extra flags (-O2 -f* -W* etc.)
-#
-i=`echo :"$orig_CFLAGS" | sed 's/^://' | tr -c -d $alll$allu$alln`
-# optimisation: only if orig_CFLAGS is empty
-test x"$i" = x"" && case $ct in
-hpcc)
- phase=u
- ac_flags 1 otwo +O2
- phase=x
- ;;
-kencc|tcc|tendra)
- # no special optimisation
- ;;
-sunpro)
- cat >x <<-'EOF'
- int main(void) { return (0); }
- #define __IDSTRING_CONCAT(l,p) __LINTED__ ## l ## _ ## p
- #define __IDSTRING_EXPAND(l,p) __IDSTRING_CONCAT(l,p)
- #define pad void __IDSTRING_EXPAND(__LINE__,x)(void) { }
- EOF
- yes pad | head -n 256 >>x
- ac_flags - 1 otwo -xO2 <x
- rmf x
- ;;
-xlc)
- ac_flags 1 othree "-O3 -qstrict"
- test 1 = $HAVE_CAN_OTHREE || ac_flags 1 otwo -O2
- ;;
-*)
- ac_flags 1 otwo -O2
- test 1 = $HAVE_CAN_OTWO || ac_flags 1 optimise -O
- ;;
-esac
-# other flags: just add them if they are supported
-i=0
-case $ct in
-bcc)
- ac_flags 1 strpool "${ccpc}-d" 'if string pooling can be enabled'
- ;;
-clang)
- i=1
- ;;
-dec)
- ac_flags 0 verb -verbose
- ac_flags 1 rodata -readonly_strings
- ;;
-dmc)
- ac_flags 1 decl "${ccpc}-r" 'for strict prototype checks'
- ac_flags 1 schk "${ccpc}-s" 'for stack overflow checking'
- ;;
-gcc)
- # The following tests run with -Werror (gcc only) if possible
- NOWARN=$DOWARN; phase=u
- ac_flags 1 wnodeprecateddecls -Wno-deprecated-declarations
- # mksh is not written in CFrustFrust!
- ac_flags 1 no_eh_frame -fno-asynchronous-unwind-tables
- ac_flags 1 fnostrictaliasing -fno-strict-aliasing
- ac_flags 1 fstackprotectorall -fstack-protector-all
- test $cm = dragonegg && case " $CC $CFLAGS $LDFLAGS " in
- *\ -fplugin=*dragonegg*) ;;
- *) ac_flags 1 fplugin_dragonegg -fplugin=dragonegg ;;
- esac
- case $cm in
- combine)
- fv=0
- checks='7 8'
- ;;
- lto)
- fv=0
- checks='1 2 3 4 5 6 7 8'
- ;;
- *)
- fv=1
- ;;
- esac
- test $fv = 1 || for what in $checks; do
- test $fv = 1 && break
- case $what in
- 1) t_cflags='-flto=jobserver'
- t_ldflags='-fuse-linker-plugin'
- t_use=1 t_name=fltojs_lp ;;
- 2) t_cflags='-flto=jobserver' t_ldflags=''
- t_use=1 t_name=fltojs_nn ;;
- 3) t_cflags='-flto=jobserver'
- t_ldflags='-fno-use-linker-plugin -fwhole-program'
- t_use=1 t_name=fltojs_np ;;
- 4) t_cflags='-flto'
- t_ldflags='-fuse-linker-plugin'
- t_use=1 t_name=fltons_lp ;;
- 5) t_cflags='-flto' t_ldflags=''
- t_use=1 t_name=fltons_nn ;;
- 6) t_cflags='-flto'
- t_ldflags='-fno-use-linker-plugin -fwhole-program'
- t_use=1 t_name=fltons_np ;;
- 7) t_cflags='-fwhole-program --combine' t_ldflags=''
- t_use=0 t_name=combine cm=combine ;;
- 8) fv=1 cm=normal ;;
- esac
- test $fv = 1 && break
- ac_flags $t_use $t_name "$t_cflags" \
- "if gcc supports $t_cflags $t_ldflags" "$t_ldflags"
- done
- i=1
- ;;
-hpcc)
- phase=u
- # probably not needed
- #ac_flags 1 agcc -Agcc 'for support of GCC extensions'
- phase=x
- ;;
-icc)
- ac_flags 1 fnobuiltinsetmode -fno-builtin-setmode
- ac_flags 1 fnostrictaliasing -fno-strict-aliasing
- ac_flags 1 fstacksecuritycheck -fstack-security-check
- i=1
- ;;
-mipspro)
- ac_flags 1 fullwarn -fullwarn 'for remark output support'
- ;;
-msc)
- ac_flags 1 strpool "${ccpc}/GF" 'if string pooling can be enabled'
- echo 'int main(void) { char test[64] = ""; return (*test); }' >x
- ac_flags - 1 stackon "${ccpc}/GZ" 'if stack checks can be enabled' <x
- ac_flags - 1 stckall "${ccpc}/Ge" 'stack checks for all functions' <x
- ac_flags - 1 secuchk "${ccpc}/GS" 'for compiler security checks' <x
- rmf x
- ac_flags 1 wall "${ccpc}/Wall" 'to enable all warnings'
- ac_flags 1 wp64 "${ccpc}/Wp64" 'to enable 64-bit warnings'
- ;;
-nwcc)
- i=1
- #broken# ac_flags 1 ssp -stackprotect
- ;;
-sunpro)
- phase=u
- ac_flags 1 v -v
- ac_flags 1 ipo -xipo 'for cross-module optimisation'
- phase=x
- ;;
-tcc)
- : #broken# ac_flags 1 boundschk -b
- ;;
-tendra)
- ac_flags 0 ysystem -Ysystem
- test 1 = $HAVE_CAN_YSYSTEM && CPPFLAGS="-Ysystem $CPPFLAGS"
- ac_flags 1 extansi -Xa
- ;;
-xlc)
- ac_flags 1 rodata "-qro -qroconst -qroptr"
- ac_flags 1 rtcheck -qcheck=all
- #ac_flags 1 rtchkc -qextchk # reported broken
- ac_flags 1 wformat "-qformat=all -qformat=nozln"
- #ac_flags 1 wp64 -qwarn64 # too verbose for now
- ;;
-esac
-# flags common to a subset of compilers (run with -Werror on gcc)
-if test 1 = $i; then
- ac_flags 1 wall -Wall
- ac_flags 1 fwrapv -fwrapv
-fi
-
-phase=x
-# The following tests run with -Werror or similar (all compilers) if possible
-NOWARN=$DOWARN
-test $ct = pcc && phase=u
-
-#
-# Compiler: check for stuff that only generates warnings
-#
-ac_test attribute_bounded '' 'for __attribute__((__bounded__))' <<-'EOF'
- #if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
- extern int thiswillneverbedefinedIhope(void);
- /* force a failure: TenDRA and gcc 1.42 have false positive here */
- int main(void) { return (thiswillneverbedefinedIhope()); }
- #else
- #include <string.h>
- #undef __attribute__
- int xcopy(const void *, void *, size_t)
- __attribute__((__bounded__ (__buffer__, 1, 3)))
- __attribute__((__bounded__ (__buffer__, 2, 3)));
- int main(int ac, char *av[]) { return (xcopy(av[0], av[--ac], 1)); }
- int xcopy(const void *s, void *d, size_t n) {
- /*
- * if memmove does not exist, we are not on a system
- * with GCC with __bounded__ attribute either so poo
- */
- memmove(d, s, n); return ((int)n);
- }
- #endif
-EOF
-ac_test attribute_format '' 'for __attribute__((__format__))' <<-'EOF'
- #if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
- extern int thiswillneverbedefinedIhope(void);
- /* force a failure: TenDRA and gcc 1.42 have false positive here */
- int main(void) { return (thiswillneverbedefinedIhope()); }
- #else
- #define fprintf printfoo
- #include <stdio.h>
- #undef __attribute__
- #undef fprintf
- extern int fprintf(FILE *, const char *format, ...)
- __attribute__((__format__ (__printf__, 2, 3)));
- int main(int ac, char **av) { return (fprintf(stderr, "%s%d", *av, ac)); }
- #endif
-EOF
-ac_test attribute_noreturn '' 'for __attribute__((__noreturn__))' <<-'EOF'
- #if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
- extern int thiswillneverbedefinedIhope(void);
- /* force a failure: TenDRA and gcc 1.42 have false positive here */
- int main(void) { return (thiswillneverbedefinedIhope()); }
- #else
- #include <stdlib.h>
- #undef __attribute__
- void fnord(void) __attribute__((__noreturn__));
- int main(void) { fnord(); }
- void fnord(void) { exit(0); }
- #endif
-EOF
-ac_test attribute_unused '' 'for __attribute__((__unused__))' <<-'EOF'
- #if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
- extern int thiswillneverbedefinedIhope(void);
- /* force a failure: TenDRA and gcc 1.42 have false positive here */
- int main(void) { return (thiswillneverbedefinedIhope()); }
- #else
- int main(int ac __attribute__((__unused__)), char **av
- __attribute__((__unused__))) { return (0); }
- #endif
-EOF
-ac_test attribute_used '' 'for __attribute__((__used__))' <<-'EOF'
- #if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
- extern int thiswillneverbedefinedIhope(void);
- /* force a failure: TenDRA and gcc 1.42 have false positive here */
- int main(void) { return (thiswillneverbedefinedIhope()); }
- #else
- static const char fnord[] __attribute__((__used__)) = "42";
- int main(void) { return (0); }
- #endif
-EOF
-
-# End of tests run with -Werror
-NOWARN=$save_NOWARN
-phase=x
-
-#
-# mksh: flavours (full/small mksh, omit certain stuff)
-#
-if ac_ifcpp 'ifdef MKSH_SMALL' isset_MKSH_SMALL '' \
- "if a reduced-feature mksh is requested"; then
- : ${HAVE_NICE=0}
- : ${HAVE_PERSISTENT_HISTORY=0}
- check_categories="$check_categories smksh"
- HAVE_ISSET_MKSH_CONSERVATIVE_FDS=1 # from sh.h
-fi
-ac_ifcpp 'if defined(MKSH_BINSHPOSIX) || defined(MKSH_BINSHREDUCED)' \
- isset_MKSH_BINSH '' 'if invoking as sh should be handled specially' && \
- check_categories="$check_categories binsh"
-ac_ifcpp 'ifdef MKSH_UNEMPLOYED' isset_MKSH_UNEMPLOYED '' \
- "if mksh will be built without job control" && \
- check_categories="$check_categories arge"
-ac_ifcpp 'ifdef MKSH_NOPROSPECTOFWORK' isset_MKSH_NOPROSPECTOFWORK '' \
- "if mksh will be built without job signals" && \
- check_categories="$check_categories arge nojsig"
-ac_ifcpp 'ifdef MKSH_ASSUME_UTF8' isset_MKSH_ASSUME_UTF8 '' \
- 'if the default UTF-8 mode is specified' && : ${HAVE_SETLOCALE_CTYPE=0}
-ac_ifcpp 'ifdef MKSH_CONSERVATIVE_FDS' isset_MKSH_CONSERVATIVE_FDS '' \
- 'if traditional/conservative fd use is requested' && \
- check_categories="$check_categories convfds"
-#ac_ifcpp 'ifdef MKSH_DISABLE_DEPRECATED' isset_MKSH_DISABLE_DEPRECATED '' \
-# "if deprecated features are to be omitted" && \
-# check_categories="$check_categories nodeprecated"
-#ac_ifcpp 'ifdef MKSH_DISABLE_EXPERIMENTAL' isset_MKSH_DISABLE_EXPERIMENTAL '' \
-# "if experimental features are to be omitted" && \
-# check_categories="$check_categories noexperimental"
-ac_ifcpp 'ifdef MKSH_MIDNIGHTBSD01ASH_COMPAT' isset_MKSH_MIDNIGHTBSD01ASH_COMPAT '' \
- 'if the MidnightBSD 0.1 ash compatibility mode is requested' && \
- check_categories="$check_categories mnbsdash"
-
-#
-# Environment: headers
-#
-ac_header sys/time.h sys/types.h
-ac_header time.h sys/types.h
-test "11" = "$HAVE_SYS_TIME_H$HAVE_TIME_H" || HAVE_BOTH_TIME_H=0
-ac_test both_time_h '' 'whether <sys/time.h> and <time.h> can both be included' <<-'EOF'
- #include <sys/types.h>
- #include <sys/time.h>
- #include <time.h>
- int main(void) { struct tm tm; return ((int)sizeof(tm)); }
-EOF
-ac_header sys/bsdtypes.h
-ac_header sys/file.h sys/types.h
-ac_header sys/mkdev.h sys/types.h
-ac_header sys/mman.h sys/types.h
-ac_header sys/param.h
-ac_header sys/resource.h sys/types.h _time
-ac_header sys/select.h sys/types.h
-ac_header sys/sysmacros.h
-ac_header bstring.h
-ac_header grp.h sys/types.h
-ac_header libgen.h
-ac_header libutil.h sys/types.h
-ac_header paths.h
-ac_header stdint.h stdarg.h
-# include strings.h only if compatible with string.h
-ac_header strings.h sys/types.h string.h
-ac_header termios.h
-ac_header ulimit.h sys/types.h
-ac_header values.h
-
-#
-# Environment: definitions
-#
-echo '#include <sys/types.h>
-/* check that off_t can represent 2^63-1 correctly, thx FSF */
-#define LARGE_OFF_T (((off_t)1 << 62) - 1 + ((off_t)1 << 62))
-int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 &&
- LARGE_OFF_T % 2147483647 == 1) ? 1 : -1];
-int main(void) { return (0); }' >lft.c
-ac_testn can_lfs '' "for large file support" <lft.c
-save_CPPFLAGS=$CPPFLAGS
-add_cppflags -D_FILE_OFFSET_BITS=64
-ac_testn can_lfs_sus '!' can_lfs 0 "... with -D_FILE_OFFSET_BITS=64" <lft.c
-if test 0 = $HAVE_CAN_LFS_SUS; then
- CPPFLAGS=$save_CPPFLAGS
- add_cppflags -D_LARGE_FILES=1
- ac_testn can_lfs_aix '!' can_lfs 0 "... with -D_LARGE_FILES=1" <lft.c
- test 1 = $HAVE_CAN_LFS_AIX || CPPFLAGS=$save_CPPFLAGS
-fi
-rmf lft* # end of large file support test
-
-#
-# Environment: types
-#
-ac_test can_inttypes '!' stdint_h 1 "for standard 32-bit integer types" <<-'EOF'
- #include <sys/types.h>
- #include <stddef.h>
- int main(int ac, char **av) { return ((uint32_t)(ptrdiff_t)*av + (int32_t)ac); }
-EOF
-ac_test can_ucbints '!' can_inttypes 1 "for UCB 32-bit integer types" <<-'EOF'
- #include <sys/types.h>
- #include <stddef.h>
- int main(int ac, char **av) { return ((u_int32_t)(ptrdiff_t)*av + (int32_t)ac); }
-EOF
-ac_test can_int8type '!' stdint_h 1 "for standard 8-bit integer type" <<-'EOF'
- #include <sys/types.h>
- #include <stddef.h>
- int main(int ac, char **av) { return ((uint8_t)(ptrdiff_t)av[ac]); }
-EOF
-ac_test can_ucbint8 '!' can_int8type 1 "for UCB 8-bit integer type" <<-'EOF'
- #include <sys/types.h>
- #include <stddef.h>
- int main(int ac, char **av) { return ((u_int8_t)(ptrdiff_t)av[ac]); }
-EOF
-
-ac_test rlim_t <<-'EOF'
- #include <sys/types.h>
- #if HAVE_BOTH_TIME_H
- #include <sys/time.h>
- #include <time.h>
- #elif HAVE_SYS_TIME_H
- #include <sys/time.h>
- #elif HAVE_TIME_H
- #include <time.h>
- #endif
- #if HAVE_SYS_RESOURCE_H
- #include <sys/resource.h>
- #endif
- #include <unistd.h>
- int main(void) { return ((int)(rlim_t)0); }
-EOF
-
-# only testn: added later below
-ac_testn sig_t <<-'EOF'
- #include <sys/types.h>
- #include <signal.h>
- #include <stddef.h>
- volatile sig_t foo = (sig_t)0;
- int main(void) { return (foo == (sig_t)0); }
-EOF
-
-ac_testn sighandler_t '!' sig_t 0 <<-'EOF'
- #include <sys/types.h>
- #include <signal.h>
- #include <stddef.h>
- volatile sighandler_t foo = (sighandler_t)0;
- int main(void) { return (foo == (sighandler_t)0); }
-EOF
-if test 1 = $HAVE_SIGHANDLER_T; then
- add_cppflags -Dsig_t=sighandler_t
- HAVE_SIG_T=1
-fi
-
-ac_testn __sighandler_t '!' sig_t 0 <<-'EOF'
- #include <sys/types.h>
- #include <signal.h>
- #include <stddef.h>
- volatile __sighandler_t foo = (__sighandler_t)0;
- int main(void) { return (foo == (__sighandler_t)0); }
-EOF
-if test 1 = $HAVE___SIGHANDLER_T; then
- add_cppflags -Dsig_t=__sighandler_t
- HAVE_SIG_T=1
-fi
-
-test 1 = $HAVE_SIG_T || add_cppflags -Dsig_t=nosig_t
-ac_cppflags SIG_T
-
-#
-# check whether whatever we use for the final link will succeed
-#
-if test $cm = makefile; then
- : nothing to check
-else
- HAVE_LINK_WORKS=x
- ac_testinit link_works '' 'checking if the final link command may succeed'
- fv=1
- cat >conftest.c <<-'EOF'
- #define EXTERN
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- __RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.645 2013/08/10 13:44:25 tg Exp $");
- int main(void) { printf("Hello, World!\n"); return (0); }
-EOF
- case $cm in
- llvm)
- v "$CC $CFLAGS $CPPFLAGS $NOWARN -emit-llvm -c conftest.c" || fv=0
- rmf $tfn.s
- test $fv = 0 || v "llvm-link -o - conftest.o | opt $optflags | llc -o $tfn.s" || fv=0
- test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn $tfn.s $LIBS $ccpr"
- ;;
- dragonegg)
- v "$CC $CFLAGS $CPPFLAGS $NOWARN -S -flto conftest.c" || fv=0
- test $fv = 0 || v "mv conftest.s conftest.ll"
- test $fv = 0 || v "llvm-as conftest.ll" || fv=0
- rmf $tfn.s
- test $fv = 0 || v "llvm-link -o - conftest.bc | opt $optflags | llc -o $tfn.s" || fv=0
- test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn $tfn.s $LIBS $ccpr"
- ;;
- combine)
- v "$CC $CFLAGS $CPPFLAGS $LDFLAGS -fwhole-program --combine $NOWARN -o $tcfn conftest.c $LIBS $ccpr"
- ;;
- lto|normal)
- cm=normal
- v "$CC $CFLAGS $CPPFLAGS $NOWARN -c conftest.c" || fv=0
- test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn conftest.o $LIBS $ccpr"
- ;;
- esac
- test -f $tcfn || fv=0
- ac_testdone
- test $fv = 1 || exit 1
-fi
-
-#
-# Environment: errors and signals
-#
-test x"NetBSD" = x"$TARGET_OS" && $e Ignore the compatibility warning.
-
-ac_testn sys_errlist '' "the sys_errlist[] array and sys_nerr" <<-'EOF'
- extern const int sys_nerr;
- extern const char * const sys_errlist[];
- int main(void) { return (*sys_errlist[sys_nerr - 1]); }
-EOF
-ac_testn _sys_errlist '!' sys_errlist 0 "the _sys_errlist[] array and _sys_nerr" <<-'EOF'
- extern const int _sys_nerr;
- extern const char * const _sys_errlist[];
- int main(void) { return (*_sys_errlist[_sys_nerr - 1]); }
-EOF
-if test 1 = "$HAVE__SYS_ERRLIST"; then
- add_cppflags -Dsys_nerr=_sys_nerr
- add_cppflags -Dsys_errlist=_sys_errlist
- HAVE_SYS_ERRLIST=1
-fi
-ac_cppflags SYS_ERRLIST
-
-for what in name list; do
- uwhat=`upper $what`
- ac_testn sys_sig$what '' "the sys_sig${what}[] array" <<-EOF
- extern const char * const sys_sig${what}[];
- int main(void) { return (sys_sig${what}[0][0]); }
- EOF
- ac_testn _sys_sig$what '!' sys_sig$what 0 "the _sys_sig${what}[] array" <<-EOF
- extern const char * const _sys_sig${what}[];
- int main(void) { return (_sys_sig${what}[0][0]); }
- EOF
- eval uwhat_v=\$HAVE__SYS_SIG$uwhat
- if test 1 = "$uwhat_v"; then
- add_cppflags -Dsys_sig$what=_sys_sig$what
- eval HAVE_SYS_SIG$uwhat=1
- fi
- ac_cppflags SYS_SIG$uwhat
-done
-
-#
-# Environment: library functions
-#
-ac_test flock <<-'EOF'
- #include <sys/types.h>
- #include <fcntl.h>
- #undef flock
- #if HAVE_SYS_FILE_H
- #include <sys/file.h>
- #endif
- int main(void) { return (flock(0, LOCK_EX | LOCK_UN)); }
-EOF
-
-ac_test lock_fcntl '!' flock 1 'whether we can lock files with fcntl' <<-'EOF'
- #include <fcntl.h>
- #undef flock
- int main(void) {
- struct flock lks;
- lks.l_type = F_WRLCK | F_UNLCK;
- return (fcntl(0, F_SETLKW, &lks));
- }
-EOF
-
-ac_test getrusage <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- int main(void) {
- struct rusage ru;
- return (getrusage(RUSAGE_SELF, &ru) +
- getrusage(RUSAGE_CHILDREN, &ru));
- }
-EOF
-
-ac_test gettimeofday <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- int main(void) { struct timeval tv; return (gettimeofday(&tv, NULL)); }
-EOF
-
-ac_test killpg <<-'EOF'
- #include <signal.h>
- int main(int ac, char *av[]) { return (av[0][killpg(123, ac)]); }
-EOF
-
-ac_test memmove <<-'EOF'
- #include <sys/types.h>
- #include <stddef.h>
- #include <string.h>
- #if HAVE_STRINGS_H
- #include <strings.h>
- #endif
- int main(int ac, char *av[]) {
- return (*(int *)(void *)memmove(av[0], av[1], ac));
- }
-EOF
-
-ac_test mknod '' 'if to use mknod(), makedev() and friends' <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- int main(int ac, char *av[]) {
- dev_t dv;
- dv = makedev((unsigned int)ac, (unsigned int)av[0][0]);
- return (mknod(av[0], (mode_t)0, dv) ? (int)major(dv) :
- (int)minor(dv));
- }
-EOF
-
-ac_test mmap lock_fcntl 0 'for mmap and munmap' <<-'EOF'
- #include <sys/types.h>
- #if HAVE_SYS_FILE_H
- #include <sys/file.h>
- #endif
- #if HAVE_SYS_MMAN_H
- #include <sys/mman.h>
- #endif
- #include <stddef.h>
- #include <stdlib.h>
- int main(void) { return ((void *)mmap(NULL, (size_t)0,
- PROT_READ, MAP_PRIVATE, 0, (off_t)0) == (void *)NULL ? 1 :
- munmap(NULL, 0)); }
-EOF
-
-ac_test nice <<-'EOF'
- #include <unistd.h>
- int main(void) { return (nice(4)); }
-EOF
-
-ac_test revoke <<-'EOF'
- #include <sys/types.h>
- #if HAVE_LIBUTIL_H
- #include <libutil.h>
- #endif
- #include <unistd.h>
- int main(int ac, char *av[]) { return (ac + revoke(av[0])); }
-EOF
-
-ac_test setlocale_ctype '' 'setlocale(LC_CTYPE, "")' <<-'EOF'
- #include <locale.h>
- #include <stddef.h>
- int main(void) { return ((int)(ptrdiff_t)(void *)setlocale(LC_CTYPE, "")); }
-EOF
-
-ac_test langinfo_codeset setlocale_ctype 0 'nl_langinfo(CODESET)' <<-'EOF'
- #include <langinfo.h>
- #include <stddef.h>
- int main(void) { return ((int)(ptrdiff_t)(void *)nl_langinfo(CODESET)); }
-EOF
-
-ac_test select <<-'EOF'
- #include <sys/types.h>
- #if HAVE_BOTH_TIME_H
- #include <sys/time.h>
- #include <time.h>
- #elif HAVE_SYS_TIME_H
- #include <sys/time.h>
- #elif HAVE_TIME_H
- #include <time.h>
- #endif
- #if HAVE_SYS_BSDTYPES_H
- #include <sys/bsdtypes.h>
- #endif
- #if HAVE_SYS_SELECT_H
- #include <sys/select.h>
- #endif
- #if HAVE_BSTRING_H
- #include <bstring.h>
- #endif
- #include <stddef.h>
- #include <stdlib.h>
- #include <string.h>
- #if HAVE_STRINGS_H
- #include <strings.h>
- #endif
- #include <unistd.h>
- int main(void) {
- struct timeval tv = { 1, 200000 };
- fd_set fds; FD_ZERO(&fds); FD_SET(0, &fds);
- return (select(FD_SETSIZE, &fds, NULL, NULL, &tv));
- }
-EOF
-
-ac_test setresugid <<-'EOF'
- #include <sys/types.h>
- #include <unistd.h>
- int main(void) { return (setresuid(0,0,0) + setresgid(0,0,0)); }
-EOF
-
-ac_test setgroups setresugid 0 <<-'EOF'
- #include <sys/types.h>
- #if HAVE_GRP_H
- #include <grp.h>
- #endif
- #include <unistd.h>
- int main(void) { gid_t gid = 0; return (setgroups(0, &gid)); }
-EOF
-
-if test x"$et" = x"klibc"; then
-
- ac_testn __rt_sigsuspend '' 'whether klibc uses RT signals' <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- extern int __rt_sigsuspend(const sigset_t *, size_t);
- int main(void) { return (__rt_sigsuspend(NULL, 0)); }
-EOF
-
- # no? damn! legacy crap ahead!
-
- ac_testn __sigsuspend_s '!' __rt_sigsuspend 1 \
- 'whether sigsuspend is usable (1/2)' <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- extern int __sigsuspend_s(sigset_t);
- int main(void) { return (__sigsuspend_s(0)); }
-EOF
- ac_testn __sigsuspend_xxs '!' __sigsuspend_s 1 \
- 'whether sigsuspend is usable (2/2)' <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- extern int __sigsuspend_xxs(int, int, sigset_t);
- int main(void) { return (__sigsuspend_xxs(0, 0, 0)); }
-EOF
-
- if test "000" = "$HAVE___RT_SIGSUSPEND$HAVE___SIGSUSPEND_S$HAVE___SIGSUSPEND_XXS"; then
- # no usable sigsuspend(), use pause() *ugh*
- add_cppflags -DMKSH_NO_SIGSUSPEND
- fi
-fi
-
-ac_test strerror '!' sys_errlist 0 <<-'EOF'
- extern char *strerror(int);
- int main(int ac, char *av[]) { return (*strerror(*av[ac])); }
-EOF
-
-ac_test strsignal '!' sys_siglist 0 <<-'EOF'
- #include <string.h>
- #include <signal.h>
- int main(void) { return (strsignal(1)[0]); }
-EOF
-
-ac_test strlcpy <<-'EOF'
- #include <string.h>
- int main(int ac, char *av[]) { return (strlcpy(*av, av[1],
- (size_t)ac)); }
-EOF
-
-#
-# check headers for declarations
-#
-ac_test flock_decl flock 1 'for declaration of flock()' <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- #if HAVE_SYS_FILE_H
- #include <sys/file.h>
- #endif
- int main(void) { return ((flock)(0, 0)); }
-EOF
-ac_test revoke_decl revoke 1 'for declaration of revoke()' <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- int main(void) { return ((revoke)("")); }
-EOF
-ac_test sys_errlist_decl sys_errlist 0 "for declaration of sys_errlist[] and sys_nerr" <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- int main(void) { return (*sys_errlist[sys_nerr - 1]); }
-EOF
-ac_test sys_siglist_decl sys_siglist 0 'for declaration of sys_siglist[]' <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- int main(void) { return (sys_siglist[0][0]); }
-EOF
-
-#
-# other checks
-#
-fd='if to use persistent history'
-ac_cache PERSISTENT_HISTORY || case $HAVE_MMAP$HAVE_FLOCK$HAVE_LOCK_FCNTL in
-11*|101) fv=1 ;;
-esac
-test 1 = $fv || check_categories="$check_categories no-histfile"
-ac_testdone
-ac_cppflags
-
-save_CFLAGS=$CFLAGS
-ac_testn compile_time_asserts_$$ '' 'whether compile-time assertions pass' <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- #ifndef CHAR_BIT
- #define CHAR_BIT 8 /* defuse this test on really legacy systems */
- #endif
- struct ctasserts {
- #define cta(name, assertion) char name[(assertion) ? 1 : -1]
-/* this one should be defined by the standard */
-cta(char_is_1_char, (sizeof(char) == 1) && (sizeof(signed char) == 1) &&
- (sizeof(unsigned char) == 1));
-cta(char_is_8_bits, ((CHAR_BIT) == 8) && ((int)(unsigned char)0xFF == 0xFF) &&
- ((int)(unsigned char)0x100 == 0) && ((int)(unsigned char)(int)-1 == 0xFF));
-/* the next assertion is probably not really needed */
-cta(short_is_2_char, sizeof(short) == 2);
-cta(short_size_no_matter_of_signedness, sizeof(short) == sizeof(unsigned short));
-/* the next assertion is probably not really needed */
-cta(int_is_4_char, sizeof(int) == 4);
-cta(int_size_no_matter_of_signedness, sizeof(int) == sizeof(unsigned int));
-
-cta(long_ge_int, sizeof(long) >= sizeof(int));
-cta(long_size_no_matter_of_signedness, sizeof(long) == sizeof(unsigned long));
-
-#ifndef MKSH_LEGACY_MODE
-/* the next assertion is probably not really needed */
-cta(ari_is_4_char, sizeof(mksh_ari_t) == 4);
-/* but this is */
-cta(ari_has_31_bit, 0 < (mksh_ari_t)(((((mksh_ari_t)1 << 15) << 15) - 1) * 2 + 1));
-/* the next assertion is probably not really needed */
-cta(uari_is_4_char, sizeof(mksh_uari_t) == 4);
-/* but the next three are; we REQUIRE unsigned integer wraparound */
-cta(uari_has_31_bit, 0 < (mksh_uari_t)(((((mksh_uari_t)1 << 15) << 15) - 1) * 2 + 1));
-cta(uari_has_32_bit, 0 < (mksh_uari_t)(((((mksh_uari_t)1 << 15) << 15) - 1) * 4 + 3));
-cta(uari_wrap_32_bit,
- (mksh_uari_t)(((((mksh_uari_t)1 << 15) << 15) - 1) * 4 + 3) >
- (mksh_uari_t)(((((mksh_uari_t)1 << 15) << 15) - 1) * 4 + 4));
-#define NUM 22
-#else
-#define NUM 16
-#endif
-/* these are always required */
-cta(ari_is_signed, (mksh_ari_t)-1 < (mksh_ari_t)0);
-cta(uari_is_unsigned, (mksh_uari_t)-1 > (mksh_uari_t)0);
-/* we require these to have the precisely same size and assume 2s complement */
-cta(ari_size_no_matter_of_signedness, sizeof(mksh_ari_t) == sizeof(mksh_uari_t));
-
-cta(sizet_size_no_matter_of_signedness, sizeof(ssize_t) == sizeof(size_t));
-cta(ptrdifft_sizet_same_size, sizeof(ptrdiff_t) == sizeof(size_t));
-cta(ptrdifft_voidptr_same_size, sizeof(ptrdiff_t) == sizeof(void *));
-cta(ptrdifft_funcptr_same_size, sizeof(ptrdiff_t) == sizeof(void (*)(void)));
-/* our formatting routines assume this */
-cta(ptr_fits_in_long, sizeof(ptrdiff_t) <= sizeof(long));
-/* for struct alignment people */
- char padding[64 - NUM];
- };
-char ctasserts_dblcheck[sizeof(struct ctasserts) == 64 ? 1 : -1];
- int main(void) { return (sizeof(ctasserts_dblcheck)); }
-EOF
-CFLAGS=$save_CFLAGS
-eval test 1 = \$HAVE_COMPILE_TIME_ASSERTS_$$ || exit 1
-
-#
-# extra checks for legacy mksh
-#
-if test $legacy = 1; then
- ac_test long_32bit '' 'whether long is 32 bit wide' <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- #ifndef CHAR_BIT
- #define CHAR_BIT 0
- #endif
- struct ctasserts {
- #define cta(name, assertion) char name[(assertion) ? 1 : -1]
- cta(char_is_8_bits, (CHAR_BIT) == 8);
- cta(long_is_32_bits, sizeof(long) == 4);
- };
- int main(void) { return (sizeof(struct ctasserts)); }
-EOF
-
- ac_test long_64bit '!' long_32bit 0 'whether long is 64 bit wide' <<-'EOF'
- #define MKSH_INCLUDES_ONLY
- #include "sh.h"
- #ifndef CHAR_BIT
- #define CHAR_BIT 0
- #endif
- struct ctasserts {
- #define cta(name, assertion) char name[(assertion) ? 1 : -1]
- cta(char_is_8_bits, (CHAR_BIT) == 8);
- cta(long_is_64_bits, sizeof(long) == 8);
- };
- int main(void) { return (sizeof(struct ctasserts)); }
-EOF
-
- case $HAVE_LONG_32BIT$HAVE_LONG_64BIT in
- 10) check_categories="$check_categories int:32" ;;
- 01) check_categories="$check_categories int:64" ;;
- *) check_categories="$check_categories int:u" ;;
- esac
-fi
-
-#
-# Compiler: Praeprocessor (only if needed)
-#
-test 0 = $HAVE_SYS_SIGNAME && if ac_testinit cpp_dd '' \
- 'checking if the C Preprocessor supports -dD'; then
- echo '#define foo bar' >conftest.c
- vv ']' "$CPP $CFLAGS $CPPFLAGS $NOWARN -dD conftest.c >x"
- grep '#define foo bar' x >/dev/null 2>&1 && fv=1
- rmf conftest.c x vv.out
- ac_testdone
-fi
-
-#
-# End of mirtoconf checks
-#
-$e ... done.
-
-# Some operating systems have ancient versions of ed(1) writing
-# the character count to standard output; cope for that
-echo wq >x
-ed x <x 2>/dev/null | grep 3 >/dev/null 2>&1 && \
- check_categories="$check_categories $oldish_ed"
-rmf x vv.out
-
-if test 0 = $HAVE_SYS_SIGNAME; then
- if test 1 = $HAVE_CPP_DD; then
- $e Generating list of signal names...
- else
- $e No list of signal names available via cpp. Falling back...
- fi
- sigseenone=:
- sigseentwo=:
- echo '#include <signal.h>
-#ifndef NSIG
-#if defined(_NSIG)
-#define NSIG _NSIG
-#elif defined(SIGMAX)
-#define NSIG (SIGMAX+1)
-#elif defined(_SIGMAX)
-#define NSIG (_SIGMAX+1)
-#endif
-#endif
-int
-mksh_cfg= NSIG
-;' >conftest.c
- # GNU sed 2.03 segfaults when optimising this to sed -n
- NSIG=`vq "$CPP $CFLAGS $CPPFLAGS $NOWARN conftest.c" | \
- grep '^ *mksh_cfg *=' | \
- sed 's/^ *mksh_cfg *=[ ]*\([()0-9x+-][()0-9x+ -]*\).*$/\1/'`
- case $NSIG in
- *mksh_cfg*) $e "Error: NSIG='$NSIG'"; NSIG=0 ;;
- *[\ \(\)+-]*) NSIG=`"$AWK" "BEGIN { print $NSIG }" </dev/null` ;;
- esac
- printf=printf
- (printf hallo) >/dev/null 2>&1 || printf=echo
- test $printf = echo || test "`printf %d 42`" = 42 || printf=echo
- test $printf = echo || NSIG=`printf %d "$NSIG" 2>/dev/null`
- $printf "NSIG=$NSIG ... "
- sigs="INT SEGV ABRT KILL ALRM BUS CHLD CLD CONT DIL EMT FPE HUP ILL"
- sigs="$sigs INFO IO IOT LOST PIPE PROF PWR QUIT RESV SAK STOP SYS TERM"
- sigs="$sigs TRAP TSTP TTIN TTOU URG USR1 USR2 VTALRM WINCH XCPU XFSZ"
- test 1 = $HAVE_CPP_DD && test $NSIG -gt 1 && sigs="$sigs "`vq \
- "$CPP $CFLAGS $CPPFLAGS $NOWARN -dD conftest.c" | \
- grep '[ ]SIG[A-Z0-9][A-Z0-9]*[ ]' | \
- sed 's/^.*[ ]SIG\([A-Z0-9][A-Z0-9]*\)[ ].*$/\1/' | sort`
- test $NSIG -gt 1 || sigs=
- for name in $sigs; do
- case $sigseenone in
- *:$name:*) continue ;;
- esac
- sigseenone=$sigseenone$name:
- echo '#include <signal.h>' >conftest.c
- echo int >>conftest.c
- echo mksh_cfg= SIG$name >>conftest.c
- echo ';' >>conftest.c
- # GNU sed 2.03 croaks on optimising this, too
- vq "$CPP $CFLAGS $CPPFLAGS $NOWARN conftest.c" | \
- grep '^ *mksh_cfg *=' | \
- sed 's/^ *mksh_cfg *=[ ]*\([0-9][0-9x]*\).*$/:\1 '$name/
- done | sed -n '/^:[^ ]/s/^://p' | while read nr name; do
- test $printf = echo || nr=`printf %d "$nr" 2>/dev/null`
- test $nr -gt 0 && test $nr -le $NSIG || continue
- case $sigseentwo in
- *:$nr:*) ;;
- *) echo " { \"$name\", $nr },"
- sigseentwo=$sigseentwo$nr:
- $printf "$name=$nr " >&2
- ;;
- esac
- done 2>&1 >signames.inc
- rmf conftest.c
- $e done.
-fi
-
-addsrcs -s '!' HAVE_STRLCPY strlcpy.c
-addsrcs USE_PRINTF_BUILTIN printf.c
-test 1 = "$USE_PRINTF_BUILTIN" && add_cppflags -DMKSH_PRINTF_BUILTIN
-test 1 = "$HAVE_CAN_VERB" && CFLAGS="$CFLAGS -verbose"
-test -n "$LDSTATIC" && add_cppflags -DMKSH_OPTSTATIC
-add_cppflags -DMKSH_BUILD_R=481
-
-$e $bi$me: Finished configuration testing, now producing output.$ao
-
-files=
-objs=
-sp=
-case $tcfn in
-a.exe) mkshexe=$tfn.exe ;;
-*) mkshexe=$tfn ;;
-esac
-case $curdir in
-*\ *) mkshshebang="#!./$mkshexe" ;;
-*) mkshshebang="#!$curdir/$mkshexe" ;;
-esac
-cat >test.sh <<-EOF
- $mkshshebang
- LC_ALL=C PATH='$PATH'; export LC_ALL PATH
- test -n "\$KSH_VERSION" || exit 1
- set -A check_categories -- $check_categories
- pflag='$curdir/$mkshexe'
- sflag='$srcdir/check.t'
- usee=0 Pflag=0 Sflag=0 uset=0 vflag=1 xflag=0
- while getopts "C:e:fPp:QSs:t:v" ch; do case \$ch {
- (C) check_categories[\${#check_categories[*]}]=\$OPTARG ;;
- (e) usee=1; eflag=\$OPTARG ;;
- (f) check_categories[\${#check_categories[*]}]=fastbox ;;
- (P) Pflag=1 ;;
- (+P) Pflag=0 ;;
- (p) pflag=\$OPTARG ;;
- (Q) vflag=0 ;;
- (+Q) vflag=1 ;;
- (S) Sflag=1 ;;
- (+S) Sflag=0 ;;
- (s) sflag=\$OPTARG ;;
- (t) uset=1; tflag=\$OPTARG ;;
- (v) vflag=1 ;;
- (+v) vflag=0 ;;
- (*) xflag=1 ;;
- }
- done
- shift \$((OPTIND - 1))
- set -A args -- '$srcdir/check.pl' -p "\$pflag"
- x=
- for y in "\${check_categories[@]}"; do
- x=\$x,\$y
- done
- if [[ -n \$x ]]; then
- args[\${#args[*]}]=-C
- args[\${#args[*]}]=\${x#,}
- fi
- if (( usee )); then
- args[\${#args[*]}]=-e
- args[\${#args[*]}]=\$eflag
- fi
- (( Pflag )) && args[\${#args[*]}]=-P
- if (( uset )); then
- args[\${#args[*]}]=-t
- args[\${#args[*]}]=\$tflag
- fi
- (( vflag )) && args[\${#args[*]}]=-v
- (( xflag )) && args[\${#args[*]}]=-x # force usage by synerr
- print Testing mksh for conformance:
- fgrep -e MirOS: -e MIRBSD "\$sflag"
- print "This shell is actually:\\n\\t\$KSH_VERSION"
- print 'test.sh built for mksh $dstversion'
- cstr='\$os = defined \$^O ? \$^O : "unknown";'
- cstr="\$cstr"'print \$os . ", Perl version " . \$];'
- for perli in \$PERL perl5 perl no; do
- if [[ \$perli = no ]]; then
- print Cannot find a working Perl interpreter, aborting.
- exit 1
- fi
- print "Trying Perl interpreter '\$perli'..."
- perlos=\$(\$perli -e "\$cstr")
- rv=\$?
- print "Errorlevel \$rv, running on '\$perlos'"
- if (( rv )); then
- print "=> not using"
- continue
- fi
- if [[ -n \$perlos ]]; then
- print "=> using it"
- break
- fi
- done
- (( Sflag )) || echo + \$perli "\${args[@]}" -s "\$sflag" "\$@"
- (( Sflag )) || exec \$perli "\${args[@]}" -s "\$sflag" "\$@"$tsts
- # use of the -S option for check.t split into multiple chunks
- rv=0
- for s in "\$sflag".*; do
- echo + \$perli "\${args[@]}" -s "\$s" "\$@"
- \$perli "\${args[@]}" -s "\$s" "\$@"$tsts
- rc=\$?
- (( rv = rv ? rv : rc ))
- done
- exit \$rv
-EOF
-chmod 755 test.sh
-case $cm in
-dragonegg)
- emitbc="-S -flto"
- ;;
-llvm)
- emitbc="-emit-llvm -c"
- ;;
-*)
- emitbc=-c
- ;;
-esac
-echo ": # work around NeXTstep bug" >Rebuild.sh
-echo set -x >>Rebuild.sh
-for file in $SRCS; do
- op=`echo x"$file" | sed 's/^x\(.*\)\.c$/\1./'`
- test -f $file || file=$srcdir/$file
- files="$files$sp$file"
- sp=' '
- echo "$CC $CFLAGS $CPPFLAGS $emitbc $file || exit 1" >>Rebuild.sh
- if test $cm = dragonegg; then
- echo "mv ${op}s ${op}ll" >>Rebuild.sh
- echo "llvm-as ${op}ll || exit 1" >>Rebuild.sh
- objs="$objs$sp${op}bc"
- else
- objs="$objs$sp${op}o"
- fi
-done
-case $cm in
-dragonegg|llvm)
- echo "rm -f $tfn.s" >>Rebuild.sh
- echo "llvm-link -o - $objs | opt $optflags | llc -o $tfn.s" >>Rebuild.sh
- lobjs=$tfn.s
- ;;
-*)
- lobjs=$objs
- ;;
-esac
-echo tcfn=$mkshexe >>Rebuild.sh
-echo "$CC $CFLAGS $LDFLAGS -o \$tcfn $lobjs $LIBS $ccpr" >>Rebuild.sh
-echo "test -f \$tcfn || exit 1; $SIZE \$tcfn" >>Rebuild.sh
-if test $cm = makefile; then
- extras='emacsfn.h sh.h sh_flags.h var_spec.h'
- test 0 = $HAVE_SYS_SIGNAME && extras="$extras signames.inc"
- cat >Makefrag.inc <<EOF
-# Makefile fragment for building mksh $dstversion
-
-PROG= $mkshexe
-MAN= mksh.1
-SRCS= $SRCS
-SRCS_FP= $files
-OBJS_BP= $objs
-INDSRCS= $extras
-NONSRCS_INST= dot.mkshrc \$(MAN)
-NONSRCS_NOINST= Build.sh Makefile Rebuild.sh check.pl check.t test.sh
-CC= $CC
-CFLAGS= $CFLAGS
-CPPFLAGS= $CPPFLAGS
-LDFLAGS= $LDFLAGS
-LIBS= $LIBS
-
-# not BSD make only:
-#VPATH= $srcdir
-#all: \$(PROG)
-#\$(PROG): \$(OBJS_BP)
-# \$(CC) \$(CFLAGS) \$(LDFLAGS) -o \$@ \$(OBJS_BP) \$(LIBS)
-#\$(OBJS_BP): \$(SRCS_FP) \$(NONSRCS)
-#.c.o:
-# \$(CC) \$(CFLAGS) \$(CPPFLAGS) -c \$<
-
-# for all make variants:
-#REGRESS_FLAGS= -f
-#regress:
-# ./test.sh \$(REGRESS_FLAGS)
-check_categories=$check_categories
-
-# for BSD make only:
-#.PATH: $srcdir
-#.include <bsd.prog.mk>
-EOF
- $e
- $e Generated Makefrag.inc successfully.
- exit 0
-fi
-if test $cm = combine; then
- objs="-o $mkshexe"
- for file in $SRCS; do
- test -f $file || file=$srcdir/$file
- objs="$objs $file"
- done
- emitbc="-fwhole-program --combine"
- v "$CC $CFLAGS $CPPFLAGS $LDFLAGS $emitbc $objs $LIBS $ccpr"
-elif test 1 = $pm; then
- for file in $SRCS; do
- test -f $file || file=$srcdir/$file
- v "$CC $CFLAGS $CPPFLAGS $emitbc $file" &
- done
- wait
-else
- for file in $SRCS; do
- test $cm = dragonegg && \
- op=`echo x"$file" | sed 's/^x\(.*\)\.c$/\1./'`
- test -f $file || file=$srcdir/$file
- v "$CC $CFLAGS $CPPFLAGS $emitbc $file" || exit 1
- if test $cm = dragonegg; then
- v "mv ${op}s ${op}ll"
- v "llvm-as ${op}ll" || exit 1
- fi
- done
-fi
-case $cm in
-dragonegg|llvm)
- rmf $tfn.s
- v "llvm-link -o - $objs | opt $optflags | llc -o $tfn.s"
- ;;
-esac
-tcfn=$mkshexe
-test $cm = combine || v "$CC $CFLAGS $LDFLAGS -o $tcfn $lobjs $LIBS $ccpr"
-test -f $tcfn || exit 1
-test 1 = $r || v "$NROFF -mdoc <'$srcdir/mksh.1' >$tfn.cat1" || \
- rmf $tfn.cat1
-test 0 = $eq && v $SIZE $tcfn
-i=install
-test -f /usr/ucb/$i && i=/usr/ucb/$i
-test 1 = $eq && e=:
-$e
-$e Installing the shell:
-$e "# $i -c -s -o root -g bin -m 555 $tfn /bin/$tfn"
-if test $legacy = 0; then
- $e "# grep -x /bin/$tfn /etc/shells >/dev/null || echo /bin/$tfn >>/etc/shells"
- $e "# $i -c -o root -g bin -m 444 dot.mkshrc /usr/share/doc/mksh/examples/"
-fi
-$e
-$e Installing the manual:
-if test -f $tfn.cat1; then
- $e "# $i -c -o root -g bin -m 444 $tfn.cat1" \
- "/usr/share/man/cat1/$tfn.0"
- $e or
-fi
-$e "# $i -c -o root -g bin -m 444 $tfn.1 /usr/share/man/man1/$tfn.1"
-$e
-$e Run the regression test suite: ./test.sh
-$e Please also read the sample file dot.mkshrc and the fine manual.
-exit 0
-
-: <<'EOD'
-
-=== Environment used ===
-
-==== build environment ====
-AWK default: awk
-CC default: cc
-CFLAGS if empty, defaults to -xO2 or +O2
- or -O3 -qstrict or -O2, per compiler
-CPPFLAGS default empty
-LDFLAGS default empty; added before sources
-LDSTATIC set this to '-static'; default unset
-LIBS default empty; added after sources
- [Interix] default: -lcrypt (XXX still needed?)
-NOWARN -Wno-error or similar
-NROFF default: nroff
-TARGET_OS default: $(uname -s || uname)
-TARGET_OSREV [QNX] default: $(uname -r)
-
-==== feature selectors ====
-USE_PRINTF_BUILTIN 1 to include (unsupported) printf(1) as builtin
-===== general format =====
-HAVE_STRLEN ac_test
-HAVE_STRING_H ac_header
-HAVE_CAN_FSTACKPROTECTORALL ac_flags
-
-==== cpp definitions ====
-DEBUG dont use in production, wants gcc, implies:
-DEBUG_LEAKS enable freeing resources before exiting
-MKSHRC_PATH "~/.mkshrc" (do not change)
-MKSH_A4PB force use of arc4random_pushb
-MKSH_ASSUME_UTF8 (0=disabled, 1=enabled; default: unset)
-MKSH_BINSHPOSIX if */sh or */-sh, enable set -o posix
-MKSH_BINSHREDUCED if */sh or */-sh, enable set -o sh
-MKSH_CLRTOEOL_STRING "\033[K"
-MKSH_CLS_STRING "\033[;H\033[J"
-MKSH_CONSERVATIVE_FDS fd 0-9 for scripts, shell only up to 31
-MKSH_DEFAULT_EXECSHELL "/bin/sh" (do not change)
-MKSH_DEFAULT_PROFILEDIR "/etc" (do not change)
-MKSH_DEFAULT_TMPDIR "/tmp" (do not change)
-MKSH_DISABLE_DEPRECATED disable code paths scheduled for later removal
-MKSH_DISABLE_EXPERIMENTAL disable code not yet comfy for (LTS) snapshots
-MKSH_DISABLE_TTY_WARNING shut up warning about ctty if OS cant be fixed
-MKSH_DONT_EMIT_IDSTRING omit RCS IDs from binary
-MKSH_MIDNIGHTBSD01ASH_COMPAT set -o sh: additional compatibility quirk
-MKSH_NOPROSPECTOFWORK disable jobs, co-processes, etc. (do not use)
-MKSH_NOPWNAM skip PAM calls, for -static on eglibc, Solaris
-MKSH_NO_CMDLINE_EDITING disable command line editing code entirely
-MKSH_NO_DEPRECATED_WARNING omit warning when deprecated stuff is run
-MKSH_NO_EXTERNAL_CAT omit hack to skip cat builtin when flags passed
-MKSH_NO_LIMITS omit ulimit code
-MKSH_NO_SIGSETJMP define if sigsetjmp is broken or not available
-MKSH_NO_SIGSUSPEND use sigprocmask+pause instead of sigsuspend
-MKSH_SMALL omit some code, optimise hard for size (slower)
-MKSH_SMALL_BUT_FAST disable some hard-for-size optim. (modern sys.)
-MKSH_S_NOVI=1 disable Vi editing mode (default if MKSH_SMALL)
-MKSH_TYPEDEF_SIG_ATOMIC_T define to e.g. 'int' if sig_atomic_t is missing
-MKSH_TYPEDEF_SSIZE_T define to e.g. 'long' if your OS has no ssize_t
-MKSH_UNEMPLOYED disable job control (but not jobs/co-processes)
-
-=== generic installation instructions ===
-
-Set CC and possibly CFLAGS, CPPFLAGS, LDFLAGS, LIBS. If cross-compiling,
-also set TARGET_OS. To disable tests, set e.g. HAVE_STRLCPY=0; to enable
-them, set to a value other than 0 or 1. Ensure /bin/ed is installed. For
-MKSH_SMALL but with Vi mode, add -DMKSH_S_NOVI=0 to CPPFLAGS as well.
-
-Normally, the following command is what you want to run, then:
-$ (sh Build.sh -r -c lto && ./test.sh -f) 2>&1 | tee log
-
-Copy dot.mkshrc to /etc/skel/.mkshrc; install mksh into $prefix/bin; or
-/bin; install the manpage, if omitting the -r flag a catmanpage is made
-using $NROFF. Consider using a forward script as /etc/skel/.mkshrc like
-https://www.mirbsd.org/cvs.cgi/contrib/hosted/tg/deb/mksh/debian/.mkshrc?rev=HEAD
-and put dot.mkshrc as /etc/mkshrc so users need not keep up their HOME.
-
-EOD
Copied: vendor/MirOS/mksh/R50/Build.sh (from rev 6707, vendor/MirOS/mksh/dist/Build.sh)
===================================================================
--- vendor/MirOS/mksh/R50/Build.sh (rev 0)
+++ vendor/MirOS/mksh/R50/Build.sh 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,2653 @@
+#!/bin/sh
+srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.662 2014/06/29 10:56:08 tg Exp $'
+#-
+# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+# 2011, 2012, 2013, 2014
+# Thorsten Glaser <tg at mirbsd.org>
+#
+# Provided that these terms and disclaimer and all copyright notices
+# are retained or reproduced in an accompanying document, permission
+# is granted to deal in this work without restriction, including un-
+# limited rights to use, publicly perform, distribute, sell, modify,
+# merge, give away, or sublicence.
+#
+# This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+# the utmost extent permitted by applicable law, neither express nor
+# implied; without malicious intent or gross negligence. In no event
+# may a licensor, author or contributor be held liable for indirect,
+# direct, other damage, loss, or other issues arising in any way out
+# of dealing in the work, even if advised of the possibility of such
+# damage or existence of a defect, except proven that it results out
+# of said person's immediate fault when using the work as intended.
+#-
+# People analysing the output must whitelist conftest.c for any kind
+# of compiler warning checks (mirtoconf is by design not quiet).
+#
+# Used environment documentation is at the end of this file.
+
+LC_ALL=C
+export LC_ALL
+
+case $ZSH_VERSION:$VERSION in
+:zsh*) ZSH_VERSION=2 ;;
+esac
+
+if test -n "${ZSH_VERSION+x}" && (emulate sh) >/dev/null 2>&1; then
+ emulate sh
+ NULLCMD=:
+fi
+
+if test -d /usr/xpg4/bin/. >/dev/null 2>&1; then
+ # Solaris: some of the tools have weird behaviour, use portable ones
+ PATH=/usr/xpg4/bin:$PATH
+ export PATH
+fi
+
+nl='
+'
+safeIFS=' '
+safeIFS=" $safeIFS$nl"
+IFS=$safeIFS
+allu=QWERTYUIOPASDFGHJKLZXCVBNM
+alll=qwertyuiopasdfghjklzxcvbnm
+alln=0123456789
+alls=______________________________________________________________
+
+genopt_die() {
+ if test -n "$1"; then
+ echo >&2 "E: $*"
+ echo >&2 "E: in '$srcfile': '$line'"
+ else
+ echo >&2 "E: invalid input in '$srcfile': '$line'"
+ fi
+ rm -f "$bn.gen"
+ exit 1
+}
+
+genopt_soptc() {
+ optc=`echo "$line" | sed 's/^[<>]\(.\).*$/\1/'`
+ test x"$optc" = x'|' && return
+ optclo=`echo "$optc" | tr $allu $alll`
+ if test x"$optc" = x"$optclo"; then
+ islo=1
+ else
+ islo=0
+ fi
+ sym=`echo "$line" | sed 's/^[<>]/|/'`
+ o_str=$o_str$nl"<$optclo$islo$sym"
+}
+
+genopt_scond() {
+ case x$cond in
+ x)
+ cond=
+ ;;
+ x*' '*)
+ cond=`echo "$cond" | sed 's/^ //'`
+ cond="#if $cond"
+ ;;
+ x'!'*)
+ cond=`echo "$cond" | sed 's/^!//'`
+ cond="#ifndef $cond"
+ ;;
+ x*)
+ cond="#ifdef $cond"
+ ;;
+ esac
+}
+
+do_genopt() {
+ srcfile=$1
+ test -f "$srcfile" || genopt_die Source file \$srcfile not set.
+ bn=`basename "$srcfile" | sed 's/.opt$//'`
+ o_gen=
+ o_str=
+ o_sym=
+ ddefs=
+ state=0
+ exec <"$srcfile"
+ IFS=
+ while IFS= read line; do
+ IFS=$safeIFS
+ case $state:$line in
+ 2:'|'*)
+ # end of input
+ o_sym=`echo "$line" | sed 's/^.//'`
+ o_gen=$o_gen$nl"#undef F0"
+ o_gen=$o_gen$nl"#undef FN"
+ o_gen=$o_gen$ddefs
+ state=3
+ ;;
+ 1:@@)
+ # begin of data block
+ o_gen=$o_gen$nl"#endif"
+ o_gen=$o_gen$nl"#ifndef F0"
+ o_gen=$o_gen$nl"#define F0 FN"
+ o_gen=$o_gen$nl"#endif"
+ state=2
+ ;;
+ *:@@*)
+ genopt_die ;;
+ 0:@*|1:@*)
+ # begin of a definition block
+ sym=`echo "$line" | sed 's/^@//'`
+ if test $state = 0; then
+ o_gen=$o_gen$nl"#if defined($sym)"
+ else
+ o_gen=$o_gen$nl"#elif defined($sym)"
+ fi
+ ddefs="$ddefs$nl#undef $sym"
+ state=1
+ ;;
+ 0:*|3:*)
+ genopt_die ;;
+ 1:*)
+ # definition line
+ o_gen=$o_gen$nl$line
+ ;;
+ 2:'<'*'|'*)
+ genopt_soptc
+ ;;
+ 2:'>'*'|'*)
+ genopt_soptc
+ cond=`echo "$line" | sed 's/^[^|]*|//'`
+ genopt_scond
+ case $optc in
+ '|') optc=0 ;;
+ *) optc=\'$optc\' ;;
+ esac
+ IFS= read line || genopt_die Unexpected EOF
+ IFS=$safeIFS
+ test -n "$cond" && o_gen=$o_gen$nl"$cond"
+ o_gen=$o_gen$nl"$line, $optc)"
+ test -n "$cond" && o_gen=$o_gen$nl"#endif"
+ ;;
+ esac
+ done
+ case $state:$o_sym in
+ 3:) genopt_die Expected optc sym at EOF ;;
+ 3:*) ;;
+ *) genopt_die Missing EOF marker ;;
+ esac
+ echo "$o_str" | sort | while IFS='|' read x opts cond; do
+ IFS=$safeIFS
+ test -n "$x" || continue
+ genopt_scond
+ test -n "$cond" && echo "$cond"
+ echo "\"$opts\""
+ test -n "$cond" && echo "#endif"
+ done | {
+ echo "#ifndef $o_sym$o_gen"
+ echo "#else"
+ cat
+ echo "#undef $o_sym"
+ echo "#endif"
+ } >"$bn.gen"
+ IFS=$safeIFS
+ return 0
+}
+
+if test x"$BUILDSH_RUN_GENOPT" = x"1"; then
+ set x -G "$srcfile"
+ shift
+fi
+if test x"$1" = x"-G"; then
+ do_genopt "$2"
+ exit $?
+fi
+
+echo "For the build logs, demonstrate that /dev/null and /dev/tty exist:"
+ls -l /dev/null /dev/tty
+
+v() {
+ $e "$*"
+ eval "$@"
+}
+
+vv() {
+ _c=$1
+ shift
+ $e "\$ $*" 2>&1
+ eval "$@" >vv.out 2>&1
+ sed "s^${_c} " <vv.out
+}
+
+vq() {
+ eval "$@"
+}
+
+rmf() {
+ for _f in "$@"; do
+ case $_f in
+ Build.sh|check.pl|check.t|dot.mkshrc|*.1|*.c|*.h|*.ico|*.opt) ;;
+ *) rm -f "$_f" ;;
+ esac
+ done
+}
+
+tcfn=no
+bi=
+ui=
+ao=
+fx=
+me=`basename "$0"`
+orig_CFLAGS=$CFLAGS
+phase=x
+oldish_ed=stdout-ed,no-stderr-ed
+
+if test -t 1; then
+ bi='[1m'
+ ui='[4m'
+ ao='[0m'
+fi
+
+upper() {
+ echo :"$@" | sed 's/^://' | tr $alll $allu
+}
+
+# clean up after ac_testrun()
+ac_testdone() {
+ eval HAVE_$fu=$fv
+ fr=no
+ test 0 = $fv || fr=yes
+ $e "$bi==> $fd...$ao $ui$fr$ao$fx"
+ fx=
+}
+
+# ac_cache label: sets f, fu, fv?=0
+ac_cache() {
+ f=$1
+ fu=`upper $f`
+ eval fv=\$HAVE_$fu
+ case $fv in
+ 0|1)
+ fx=' (cached)'
+ return 0
+ ;;
+ esac
+ fv=0
+ return 1
+}
+
+# ac_testinit label [!] checkif[!]0 [setlabelifcheckis[!]0] useroutput
+# returns 1 if value was cached/implied, 0 otherwise: call ac_testdone
+ac_testinit() {
+ if ac_cache $1; then
+ test x"$2" = x"!" && shift
+ test x"$2" = x"" || shift
+ fd=${3-$f}
+ ac_testdone
+ return 1
+ fi
+ fc=0
+ if test x"$2" = x""; then
+ ft=1
+ else
+ if test x"$2" = x"!"; then
+ fc=1
+ shift
+ fi
+ eval ft=\$HAVE_`upper $2`
+ shift
+ fi
+ fd=${3-$f}
+ if test $fc = "$ft"; then
+ fv=$2
+ fx=' (implied)'
+ ac_testdone
+ return 1
+ fi
+ $e ... $fd
+ return 0
+}
+
+# pipe .c | ac_test[n] [!] label [!] checkif[!]0 [setlabelifcheckis[!]0] useroutput
+ac_testnnd() {
+ if test x"$1" = x"!"; then
+ fr=1
+ shift
+ else
+ fr=0
+ fi
+ ac_testinit "$@" || return 1
+ cat >conftest.c
+ vv ']' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN conftest.c $LIBS $ccpr"
+ test $tcfn = no && test -f a.out && tcfn=a.out
+ test $tcfn = no && test -f a.exe && tcfn=a.exe
+ test $tcfn = no && test -f conftest && tcfn=conftest
+ if test -f $tcfn; then
+ test 1 = $fr || fv=1
+ else
+ test 0 = $fr || fv=1
+ fi
+ vscan=
+ if test $phase = u; then
+ test $ct = gcc && vscan='unrecogni[sz]ed'
+ test $ct = hpcc && vscan='unsupported'
+ test $ct = pcc && vscan='unsupported'
+ test $ct = sunpro && vscan='-e ignored -e turned.off'
+ fi
+ test -n "$vscan" && grep $vscan vv.out >/dev/null 2>&1 && fv=$fr
+ return 0
+}
+ac_testn() {
+ ac_testnnd "$@" || return
+ rmf conftest.c conftest.o ${tcfn}* vv.out
+ ac_testdone
+}
+
+# ac_ifcpp cppexpr [!] label [!] checkif[!]0 [setlabelifcheckis[!]0] useroutput
+ac_ifcpp() {
+ expr=$1; shift
+ ac_testn "$@" <<-EOF
+ #include <unistd.h>
+ extern int thiswillneverbedefinedIhope(void);
+ int main(void) { return (isatty(0) +
+ #$expr
+ 0
+ #else
+ /* force a failure: expr is false */
+ thiswillneverbedefinedIhope()
+ #endif
+ ); }
+EOF
+ test x"$1" = x"!" && shift
+ f=$1
+ fu=`upper $f`
+ eval fv=\$HAVE_$fu
+ test x"$fv" = x"1"
+}
+
+add_cppflags() {
+ CPPFLAGS="$CPPFLAGS $*"
+}
+
+ac_cppflags() {
+ test x"$1" = x"" || fu=$1
+ fv=$2
+ test x"$2" = x"" && eval fv=\$HAVE_$fu
+ add_cppflags -DHAVE_$fu=$fv
+}
+
+ac_test() {
+ ac_testn "$@"
+ ac_cppflags
+}
+
+# ac_flags [-] add varname cflags [text] [ldflags]
+ac_flags() {
+ if test x"$1" = x"-"; then
+ shift
+ hf=1
+ else
+ hf=0
+ fi
+ fa=$1
+ vn=$2
+ f=$3
+ ft=$4
+ fl=$5
+ test x"$ft" = x"" && ft="if $f can be used"
+ save_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS $f"
+ if test -n "$fl"; then
+ save_LDFLAGS=$LDFLAGS
+ LDFLAGS="$LDFLAGS $fl"
+ fi
+ if test 1 = $hf; then
+ ac_testn can_$vn '' "$ft"
+ else
+ ac_testn can_$vn '' "$ft" <<-'EOF'
+ /* evil apo'stroph in comment test */
+ #include <unistd.h>
+ int main(void) { return (isatty(0)); }
+ EOF
+ fi
+ eval fv=\$HAVE_CAN_`upper $vn`
+ if test -n "$fl"; then
+ test 11 = $fa$fv || LDFLAGS=$save_LDFLAGS
+ fi
+ test 11 = $fa$fv || CFLAGS=$save_CFLAGS
+}
+
+# ac_header [!] header [prereq ...]
+ac_header() {
+ if test x"$1" = x"!"; then
+ na=1
+ shift
+ else
+ na=0
+ fi
+ hf=$1; shift
+ hv=`echo "$hf" | tr -d '\012\015' | tr -c $alll$allu$alln $alls`
+ echo "/* NeXTstep bug workaround */" >x
+ for i
+ do
+ case $i in
+ _time)
+ echo '#if HAVE_BOTH_TIME_H' >>x
+ echo '#include <sys/time.h>' >>x
+ echo '#include <time.h>' >>x
+ echo '#elif HAVE_SYS_TIME_H' >>x
+ echo '#include <sys/time.h>' >>x
+ echo '#elif HAVE_TIME_H' >>x
+ echo '#include <time.h>' >>x
+ echo '#endif' >>x
+ ;;
+ *)
+ echo "#include <$i>" >>x
+ ;;
+ esac
+ done
+ echo "#include <$hf>" >>x
+ echo '#include <unistd.h>' >>x
+ echo 'int main(void) { return (isatty(0)); }' >>x
+ ac_testn "$hv" "" "<$hf>" <x
+ rmf x
+ test 1 = $na || ac_cppflags
+}
+
+addsrcs() {
+ if test x"$1" = x"!"; then
+ fr=0
+ shift
+ else
+ fr=1
+ fi
+ eval i=\$$1
+ test $fr = "$i" && case " $SRCS " in
+ *\ $2\ *) ;;
+ *) SRCS="$SRCS $2" ;;
+ esac
+}
+
+
+curdir=`pwd` srcdir=`dirname "$0" 2>/dev/null`
+case x$srcdir in
+x)
+ srcdir=.
+ ;;
+*\ *|*" "*|*"$nl"*)
+ echo >&2 Source directory should not contain space or tab or newline.
+ echo >&2 Errors may occur.
+ ;;
+*"'"*)
+ echo Source directory must not contain single quotes.
+ exit 1
+ ;;
+esac
+dstversion=`sed -n '/define MKSH_VERSION/s/^.*"\([^"]*\)".*$/\1/p' "$srcdir/sh.h"`
+add_cppflags -DMKSH_BUILDSH
+
+e=echo
+r=0
+eq=0
+pm=0
+cm=normal
+optflags=-std-compile-opts
+check_categories=
+last=
+tfn=
+legacy=0
+
+for i
+do
+ case $last:$i in
+ c:combine|c:dragonegg|c:llvm|c:lto)
+ cm=$i
+ last=
+ ;;
+ c:*)
+ echo "$me: Unknown option -c '$i'!" >&2
+ exit 1
+ ;;
+ o:*)
+ optflags=$i
+ last=
+ ;;
+ t:*)
+ tfn=$i
+ last=
+ ;;
+ :-c)
+ last=c
+ ;;
+ :-G)
+ echo "$me: Do not call me with '-G'!" >&2
+ exit 1
+ ;;
+ :-g)
+ # checker, debug, valgrind build
+ add_cppflags -DDEBUG
+ CFLAGS="$CFLAGS -g3 -fno-builtin"
+ ;;
+ :-j)
+ pm=1
+ ;;
+ :-L)
+ legacy=1
+ ;;
+ :+L)
+ legacy=0
+ ;;
+ :-M)
+ cm=makefile
+ ;;
+ :-O)
+ optflags=-std-compile-opts
+ ;;
+ :-o)
+ last=o
+ ;;
+ :-Q)
+ eq=1
+ ;;
+ :-r)
+ r=1
+ ;;
+ :-t)
+ last=t
+ ;;
+ :-v)
+ echo "Build.sh $srcversion"
+ echo "for mksh $dstversion"
+ exit 0
+ ;;
+ :*)
+ echo "$me: Unknown option '$i'!" >&2
+ exit 1
+ ;;
+ *)
+ echo "$me: Unknown option -'$last' '$i'!" >&2
+ exit 1
+ ;;
+ esac
+done
+if test -n "$last"; then
+ echo "$me: Option -'$last' not followed by argument!" >&2
+ exit 1
+fi
+
+test -z "$tfn" && if test $legacy = 0; then
+ tfn=mksh
+else
+ tfn=lksh
+fi
+if test -d $tfn || test -d $tfn.exe; then
+ echo "$me: Error: ./$tfn is a directory!" >&2
+ exit 1
+fi
+rmf a.exe* a.out* conftest.c *core core.* lft ${tfn}* no *.bc *.ll *.o *.gen \
+ Rebuild.sh signames.inc test.sh x vv.out
+
+SRCS="lalloc.c eval.c exec.c expr.c funcs.c histrap.c jobs.c"
+SRCS="$SRCS lex.c main.c misc.c shf.c syn.c tree.c var.c"
+
+if test $legacy = 0; then
+ SRCS="$SRCS edit.c"
+ check_categories="$check_categories shell:legacy-no int:32"
+else
+ check_categories="$check_categories shell:legacy-yes"
+ add_cppflags -DMKSH_LEGACY_MODE
+ HAVE_PERSISTENT_HISTORY=0
+ HAVE_ISSET_MKSH_CONSERVATIVE_FDS=1 # from sh.h
+fi
+
+if test x"$srcdir" = x"."; then
+ CPPFLAGS="-I. $CPPFLAGS"
+else
+ CPPFLAGS="-I. -I'$srcdir' $CPPFLAGS"
+fi
+test -n "$LDSTATIC" && if test -n "$LDFLAGS"; then
+ LDFLAGS="$LDFLAGS $LDSTATIC"
+else
+ LDFLAGS=$LDSTATIC
+fi
+
+if test -z "$TARGET_OS"; then
+ x=`uname -s 2>/dev/null || uname`
+ test x"$x" = x"`uname -n 2>/dev/null`" || TARGET_OS=$x
+fi
+if test -z "$TARGET_OS"; then
+ echo "$me: Set TARGET_OS, your uname is broken!" >&2
+ exit 1
+fi
+oswarn=
+ccpc=-Wc,
+ccpl=-Wl,
+tsts=
+ccpr='|| for _f in ${tcfn}*; do case $_f in Build.sh|check.pl|check.t|dot.mkshrc|*.1|*.c|*.h|*.ico|*.opt) ;; *) rm -f "$_f" ;; esac; done'
+
+# Evil hack
+if test x"$TARGET_OS" = x"Android"; then
+ check_categories="$check_categories android"
+ TARGET_OS=Linux
+fi
+
+# Evil OS
+if test x"$TARGET_OS" = x"Minix"; then
+ echo >&2 "
+WARNING: additional checks before running Build.sh required!
+You can avoid these by calling Build.sh correctly, see below.
+"
+ cat >conftest.c <<'EOF'
+#include <sys/types.h>
+const char *
+#ifdef _NETBSD_SOURCE
+ct="Ninix3"
+#else
+ct="Minix3"
+#endif
+;
+EOF
+ ct=unknown
+ vv ']' "${CC-cc} -E $CFLAGS $CPPFLAGS $NOWARN conftest.c | grep ct= | tr -d \\\\015 >x"
+ sed 's/^/[ /' x
+ eval `cat x`
+ rmf x vv.out
+ case $ct in
+ Minix3|Ninix3)
+ echo >&2 "
+Warning: you set TARGET_OS to $TARGET_OS but that is ambiguous.
+Please set it to either Minix3 or Ninix3, whereas the latter is
+all versions of Minix with even partial NetBSD(R) userland. The
+value determined from your compiler for the current compilation
+(which may be wrong) is: $ct
+"
+ TARGET_OS=$ct
+ ;;
+ *)
+ echo >&2 "
+Warning: you set TARGET_OS to $TARGET_OS but that is ambiguous.
+Please set it to either Minix3 or Ninix3, whereas the latter is
+all versions of Minix with even partial NetBSD(R) userland. The
+proper value couldn't be determined, continue at your own risk.
+"
+ ;;
+ esac
+fi
+
+# Configuration depending on OS revision, on OSes that need them
+case $TARGET_OS in
+NEXTSTEP)
+ test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`hostinfo 2>&1 | \
+ grep 'NeXT Mach [0-9][0-9.]*:' | \
+ sed 's/^.*NeXT Mach \([0-9][0-9.]*\):.*$/\1/'`
+ ;;
+QNX|SCO_SV)
+ test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`uname -r`
+ ;;
+esac
+
+# Configuration depending on OS name
+case $TARGET_OS in
+386BSD)
+ : ${HAVE_CAN_OTWO=0}
+ add_cppflags -DMKSH_NO_SIGSETJMP
+ add_cppflags -DMKSH_TYPEDEF_SIG_ATOMIC_T=int
+ add_cppflags -DMKSH_CONSERVATIVE_FDS
+ ;;
+AIX)
+ add_cppflags -D_ALL_SOURCE
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+BeOS)
+ case $KSH_VERSION in
+ *MIRBSD\ KSH*)
+ oswarn="; it has minor issues"
+ ;;
+ *)
+ oswarn="; you must recompile mksh with"
+ oswarn="$oswarn${nl}itself in a second stage"
+ ;;
+ esac
+ # BeOS has no real tty either
+ add_cppflags -DMKSH_UNEMPLOYED
+ add_cppflags -DMKSH_DISABLE_TTY_WARNING
+ # BeOS doesn't have different UIDs and GIDs
+ add_cppflags -DMKSH__NO_SETEUGID
+ ;;
+BSD/OS)
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+Coherent)
+ oswarn="; it has major issues"
+ add_cppflags -DMKSH__NO_SYMLINK
+ check_categories="$check_categories nosymlink"
+ add_cppflags -DMKSH__NO_SETEUGID
+ add_cppflags -DMKSH_CONSERVATIVE_FDS
+ add_cppflags -DMKSH_DISABLE_TTY_WARNING
+ ;;
+CYGWIN*)
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+Darwin)
+ add_cppflags -D_DARWIN_C_SOURCE
+ ;;
+DragonFly)
+ ;;
+FreeBSD)
+ ;;
+FreeMiNT)
+ oswarn="; it has minor issues"
+ add_cppflags -D_GNU_SOURCE
+ add_cppflags -DMKSH_CONSERVATIVE_FDS
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+GNU)
+ case $CC in
+ *tendracc*) ;;
+ *) add_cppflags -D_GNU_SOURCE ;;
+ esac
+ # define MKSH__NO_PATH_MAX to use Hurd-only functions
+ add_cppflags -DMKSH__NO_PATH_MAX
+ ;;
+GNU/kFreeBSD)
+ case $CC in
+ *tendracc*) ;;
+ *) add_cppflags -D_GNU_SOURCE ;;
+ esac
+ ;;
+Haiku)
+ add_cppflags -DMKSH_ASSUME_UTF8; HAVE_ISSET_MKSH_ASSUME_UTF8=1
+ ;;
+HP-UX)
+ ;;
+Interix)
+ ccpc='-X '
+ ccpl='-Y '
+ add_cppflags -D_ALL_SOURCE
+ : ${LIBS='-lcrypt'}
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+IRIX*)
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+Linux)
+ case $CC in
+ *tendracc*) ;;
+ *) add_cppflags -D_GNU_SOURCE ;;
+ esac
+ add_cppflags -DSETUID_CAN_FAIL_WITH_EAGAIN
+ : ${HAVE_REVOKE=0}
+ ;;
+LynxOS)
+ oswarn="; it has minor issues"
+ ;;
+MidnightBSD)
+ ;;
+Minix-vmd)
+ add_cppflags -DMKSH__NO_SETEUGID
+ add_cppflags -DMKSH_UNEMPLOYED
+ add_cppflags -DMKSH_CONSERVATIVE_FDS
+ add_cppflags -D_MINIX_SOURCE
+ oldish_ed=no-stderr-ed # no /bin/ed, maybe see below
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+Minix3)
+ add_cppflags -DMKSH_UNEMPLOYED
+ add_cppflags -DMKSH_CONSERVATIVE_FDS
+ add_cppflags -DMKSH_NO_LIMITS
+ add_cppflags -D_POSIX_SOURCE -D_POSIX_1_SOURCE=2 -D_MINIX
+ oldish_ed=no-stderr-ed # /usr/bin/ed(!) is broken
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+MirBSD)
+ ;;
+MSYS_*)
+ add_cppflags -DMKSH_ASSUME_UTF8=0; HAVE_ISSET_MKSH_ASSUME_UTF8=1
+ # almost same as CYGWIN* (from RT|Chatzilla)
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ # broken on this OE (from ir0nh34d)
+ : ${HAVE_STDINT_H=0}
+ ;;
+NetBSD)
+ ;;
+NEXTSTEP)
+ add_cppflags -D_NEXT_SOURCE
+ add_cppflags -D_POSIX_SOURCE
+ : ${AWK=gawk} ${CC=cc -posix}
+ add_cppflags -DMKSH_NO_SIGSETJMP
+ # NeXTstep cannot get a controlling tty
+ add_cppflags -DMKSH_UNEMPLOYED
+ case $TARGET_OSREV in
+ 4.2*)
+ # OpenStep 4.2 is broken by default
+ oswarn="; it needs libposix.a"
+ ;;
+ esac
+ add_cppflags -DMKSH_CONSERVATIVE_FDS
+ ;;
+Ninix3)
+ # similar to Minix3
+ add_cppflags -DMKSH_UNEMPLOYED
+ add_cppflags -DMKSH_CONSERVATIVE_FDS
+ add_cppflags -DMKSH_NO_LIMITS
+ # but no idea what else could be needed
+ oswarn="; it has unknown issues"
+ ;;
+OpenBSD)
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+OSF1)
+ HAVE_SIG_T=0 # incompatible
+ add_cppflags -D_OSF_SOURCE
+ add_cppflags -D_POSIX_C_SOURCE=200112L
+ add_cppflags -D_XOPEN_SOURCE=600
+ add_cppflags -D_XOPEN_SOURCE_EXTENDED
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+Plan9)
+ add_cppflags -D_POSIX_SOURCE
+ add_cppflags -D_LIMITS_EXTENSION
+ add_cppflags -D_BSD_EXTENSION
+ add_cppflags -D_SUSV2_SOURCE
+ add_cppflags -DMKSH_ASSUME_UTF8; HAVE_ISSET_MKSH_ASSUME_UTF8=1
+ add_cppflags -DMKSH_NO_CMDLINE_EDITING
+ add_cppflags -DMKSH__NO_SETEUGID
+ oswarn=' and will currently not work'
+ add_cppflags -DMKSH_UNEMPLOYED
+ # this is for detecting kencc
+ add_cppflags -DMKSH_MAYBE_KENCC
+ ;;
+PW32*)
+ HAVE_SIG_T=0 # incompatible
+ oswarn=' and will currently not work'
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+QNX)
+ add_cppflags -D__NO_EXT_QNX
+ add_cppflags -D__EXT_UNIX_MISC
+ case $TARGET_OSREV in
+ [012345].*|6.[0123].*|6.4.[01])
+ oldish_ed=no-stderr-ed # oldish /bin/ed is broken
+ ;;
+ esac
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+SCO_SV)
+ case $TARGET_OSREV in
+ 3.2*)
+ # SCO OpenServer 5
+ add_cppflags -DMKSH_UNEMPLOYED
+ ;;
+ 5*)
+ # SCO OpenServer 6
+ ;;
+ *)
+ oswarn='; this is an unknown version of'
+ oswarn="$oswarn$nl$TARGET_OS ${TARGET_OSREV}, please tell me what to do"
+ ;;
+ esac
+ add_cppflags -DMKSH_CONSERVATIVE_FDS
+ : ${HAVE_SYS_SIGLIST=0} ${HAVE__SYS_SIGLIST=0}
+ ;;
+skyos)
+ oswarn="; it has minor issues"
+ ;;
+SunOS)
+ add_cppflags -D_BSD_SOURCE
+ add_cppflags -D__EXTENSIONS__
+ ;;
+syllable)
+ add_cppflags -D_GNU_SOURCE
+ add_cppflags -DMKSH_NO_SIGSUSPEND
+ oswarn=' and will currently not work'
+ ;;
+ULTRIX)
+ : ${CC=cc -YPOSIX}
+ add_cppflags -DMKSH_TYPEDEF_SSIZE_T=int
+ add_cppflags -DMKSH_CONSERVATIVE_FDS
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+UnixWare|UNIX_SV)
+ # SCO UnixWare
+ add_cppflags -DMKSH_CONSERVATIVE_FDS
+ : ${HAVE_SYS_SIGLIST=0} ${HAVE__SYS_SIGLIST=0}
+ ;;
+UWIN*)
+ ccpc='-Yc,'
+ ccpl='-Yl,'
+ tsts=" 3<>/dev/tty"
+ oswarn="; it will compile, but the target"
+ oswarn="$oswarn${nl}platform itself is very flakey/unreliable"
+ : ${HAVE_SETLOCALE_CTYPE=0}
+ ;;
+_svr4)
+ # generic target for SVR4 Unix with uname -s = uname -n
+ # this duplicates the * target below
+ oswarn='; it may or may not work'
+ test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`uname -r`
+ ;;
+*)
+ oswarn='; it may or may not work'
+ test x"$TARGET_OSREV" = x"" && TARGET_OSREV=`uname -r`
+ ;;
+esac
+
+: ${HAVE_MKNOD=0}
+
+: ${AWK=awk} ${CC=cc} ${NROFF=nroff} ${SIZE=size}
+test 0 = $r && echo | $NROFF -v 2>&1 | grep GNU >/dev/null 2>&1 && \
+ NROFF="$NROFF -c"
+
+# this aids me in tracing FTBFSen without access to the buildd
+$e "Hi from$ao $bi$srcversion$ao on:"
+case $TARGET_OS in
+AIX)
+ vv '|' "oslevel >&2"
+ vv '|' "uname -a >&2"
+ ;;
+Darwin)
+ vv '|' "hwprefs machine_type os_type os_class >&2"
+ vv '|' "sw_vers >&2"
+ vv '|' "system_profiler SPSoftwareDataType SPHardwareDataType >&2"
+ vv '|' "/bin/sh --version >&2"
+ vv '|' "xcodebuild -version >&2"
+ vv '|' "uname -a >&2"
+ vv '|' "sysctl kern.version hw.machine hw.model hw.memsize hw.availcpu hw.cpufrequency hw.byteorder hw.cpu64bit_capable >&2"
+ ;;
+IRIX*)
+ vv '|' "uname -a >&2"
+ vv '|' "hinv -v >&2"
+ ;;
+OSF1)
+ vv '|' "uname -a >&2"
+ vv '|' "/usr/sbin/sizer -v >&2"
+ ;;
+SCO_SV|UnixWare|UNIX_SV)
+ vv '|' "uname -a >&2"
+ vv '|' "uname -X >&2"
+ ;;
+*)
+ vv '|' "uname -a >&2"
+ ;;
+esac
+test -z "$oswarn" || echo >&2 "
+Warning: mksh has not yet been ported to or tested on your
+operating system '$TARGET_OS'$oswarn. If you can provide
+a shell account to the developer, this may improve; please
+drop us a success or failure notice or even send in diffs.
+"
+$e "$bi$me: Building the MirBSD Korn Shell$ao $ui$dstversion$ao on $TARGET_OS ${TARGET_OSREV}..."
+
+#
+# Begin of mirtoconf checks
+#
+$e $bi$me: Scanning for functions... please ignore any errors.$ao
+
+#
+# Compiler: which one?
+#
+# notes:
+# - ICC defines __GNUC__ too
+# - GCC defines __hpux too
+# - LLVM+clang defines __GNUC__ too
+# - nwcc defines __GNUC__ too
+CPP="$CC -E"
+$e ... which compiler seems to be used
+cat >conftest.c <<'EOF'
+const char *
+#if defined(__ICC) || defined(__INTEL_COMPILER)
+ct="icc"
+#elif defined(__xlC__) || defined(__IBMC__)
+ct="xlc"
+#elif defined(__SUNPRO_C)
+ct="sunpro"
+#elif defined(__ACK__)
+ct="ack"
+#elif defined(__BORLANDC__)
+ct="bcc"
+#elif defined(__WATCOMC__)
+ct="watcom"
+#elif defined(__MWERKS__)
+ct="metrowerks"
+#elif defined(__HP_cc)
+ct="hpcc"
+#elif defined(__DECC) || (defined(__osf__) && !defined(__GNUC__))
+ct="dec"
+#elif defined(__PGI)
+ct="pgi"
+#elif defined(__DMC__)
+ct="dmc"
+#elif defined(_MSC_VER)
+ct="msc"
+#elif defined(__ADSPBLACKFIN__) || defined(__ADSPTS__) || defined(__ADSP21000__)
+ct="adsp"
+#elif defined(__IAR_SYSTEMS_ICC__)
+ct="iar"
+#elif defined(SDCC)
+ct="sdcc"
+#elif defined(__PCC__)
+ct="pcc"
+#elif defined(__TenDRA__)
+ct="tendra"
+#elif defined(__TINYC__)
+ct="tcc"
+#elif defined(__llvm__) && defined(__clang__)
+ct="clang"
+#elif defined(__NWCC__)
+ct="nwcc"
+#elif defined(__GNUC__)
+ct="gcc"
+#elif defined(_COMPILER_VERSION)
+ct="mipspro"
+#elif defined(__sgi)
+ct="mipspro"
+#elif defined(__hpux) || defined(__hpua)
+ct="hpcc"
+#elif defined(__ultrix)
+ct="ucode"
+#elif defined(__USLC__)
+ct="uslc"
+#elif defined(__LCC__)
+ct="lcc"
+#elif defined(MKSH_MAYBE_KENCC)
+/* and none of the above matches */
+ct="kencc"
+#else
+ct="unknown"
+#endif
+;
+const char *
+#if defined(__KLIBC__)
+et="klibc"
+#else
+et="unknown"
+#endif
+;
+EOF
+ct=untested
+et=untested
+vv ']' "$CPP $CFLAGS $CPPFLAGS $NOWARN conftest.c | \
+ sed -n '/^ *[ce]t *= */s/^ *\([ce]t\) *= */\1=/p' | tr -d \\\\015 >x"
+sed 's/^/[ /' x
+eval `cat x`
+rmf x vv.out
+cat >conftest.c <<'EOF'
+#include <unistd.h>
+int main(void) { return (isatty(0)); }
+EOF
+case $ct in
+ack)
+ # work around "the famous ACK const bug"
+ CPPFLAGS="-Dconst= $CPPFLAGS"
+ ;;
+adsp)
+ echo >&2 'Warning: Analog Devices C++ compiler for Blackfin, TigerSHARC
+ and SHARC (21000) DSPs detected. This compiler has not yet
+ been tested for compatibility with mksh. Continue at your
+ own risk, please report success/failure to the developers.'
+ ;;
+bcc)
+ echo >&2 "Warning: Borland C++ Builder detected. This compiler might
+ produce broken executables. Continue at your own risk,
+ please report success/failure to the developers."
+ ;;
+clang)
+ # does not work with current "ccc" compiler driver
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -version"
+ # one of these two works, for now
+ vv '|' "${CLANG-clang} -version"
+ vv '|' "${CLANG-clang} --version"
+ # ensure compiler and linker are in sync unless overridden
+ case $CCC_CC:$CCC_LD in
+ :*) ;;
+ *:) CCC_LD=$CCC_CC; export CCC_LD ;;
+ esac
+ ;;
+dec)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V"
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -Wl,-V conftest.c $LIBS"
+ ;;
+dmc)
+ echo >&2 "Warning: Digital Mars Compiler detected. When running under"
+ echo >&2 " UWIN, mksh tends to be unstable due to the limitations"
+ echo >&2 " of this platform. Continue at your own risk,"
+ echo >&2 " please report success/failure to the developers."
+ ;;
+gcc)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
+ vv '|' 'echo `$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS \
+ -dumpmachine` gcc`$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN \
+ $LIBS -dumpversion`'
+ ;;
+hpcc)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
+ ;;
+iar)
+ echo >&2 'Warning: IAR Systems (http://www.iar.com) compiler for embedded
+ systems detected. This unsupported compiler has not yet
+ been tested for compatibility with mksh. Continue at your
+ own risk, please report success/failure to the developers.'
+ ;;
+icc)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V"
+ ;;
+kencc)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
+ ;;
+lcc)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
+ add_cppflags -D__inline__=__inline
+ ;;
+metrowerks)
+ echo >&2 'Warning: Metrowerks C compiler detected. This has not yet
+ been tested for compatibility with mksh. Continue at your
+ own risk, please report success/failure to the developers.'
+ ;;
+mipspro)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -version"
+ ;;
+msc)
+ ccpr= # errorlevels are not reliable
+ case $TARGET_OS in
+ Interix)
+ if [[ -n $C89_COMPILER ]]; then
+ C89_COMPILER=`ntpath2posix -c "$C89_COMPILER"`
+ else
+ C89_COMPILER=CL.EXE
+ fi
+ if [[ -n $C89_LINKER ]]; then
+ C89_LINKER=`ntpath2posix -c "$C89_LINKER"`
+ else
+ C89_LINKER=LINK.EXE
+ fi
+ vv '|' "$C89_COMPILER /HELP >&2"
+ vv '|' "$C89_LINKER /LINK >&2"
+ ;;
+ esac
+ ;;
+nwcc)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -version"
+ ;;
+pcc)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -v"
+ ;;
+pgi)
+ echo >&2 'Warning: PGI detected. This unknown compiler has not yet
+ been tested for compatibility with mksh. Continue at your
+ own risk, please report success/failure to the developers.'
+ ;;
+sdcc)
+ echo >&2 'Warning: sdcc (http://sdcc.sourceforge.net), the small devices
+ C compiler for embedded systems detected. This has not yet
+ been tested for compatibility with mksh. Continue at your
+ own risk, please report success/failure to the developers.'
+ ;;
+sunpro)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
+ ;;
+tcc)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -v"
+ ;;
+tendra)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V 2>&1 | \
+ fgrep -i -e version -e release"
+ ;;
+ucode)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -V"
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -Wl,-V conftest.c $LIBS"
+ ;;
+uslc)
+ case $TARGET_OS:$TARGET_OSREV in
+ SCO_SV:3.2*)
+ # SCO OpenServer 5
+ CFLAGS="$CFLAGS -g"
+ : ${HAVE_CAN_OTWO=0} ${HAVE_CAN_OPTIMISE=0}
+ ;;
+ esac
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
+ ;;
+watcom)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
+ ;;
+xlc)
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -qversion"
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN $LIBS -qversion=verbose"
+ vv '|' "ld -V"
+ ;;
+*)
+ test x"$ct" = x"untested" && $e "!!! detecting preprocessor failed"
+ ct=unknown
+ vv "$CC --version"
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -v conftest.c $LIBS"
+ vv '|' "$CC $CFLAGS $CPPFLAGS $LDFLAGS $NOWARN -V conftest.c $LIBS"
+ ;;
+esac
+case $cm in
+dragonegg|llvm)
+ vv '|' "llc -version"
+ ;;
+esac
+case $et in
+klibc)
+ add_cppflags -DMKSH_NO_LIMITS
+ ;;
+unknown)
+ # nothing special detected, don’t worry
+ unset et
+ ;;
+*)
+ # huh?
+ ;;
+esac
+$e "$bi==> which compiler seems to be used...$ao $ui$ct${et+ on $et}$ao"
+rmf conftest.c conftest.o conftest a.out* a.exe* vv.out
+
+#
+# Compiler: works as-is, with -Wno-error and -Werror
+#
+save_NOWARN=$NOWARN
+NOWARN=
+DOWARN=
+ac_flags 0 compiler_works '' 'if the compiler works'
+test 1 = $HAVE_CAN_COMPILER_WORKS || exit 1
+HAVE_COMPILER_KNOWN=0
+test $ct = unknown || HAVE_COMPILER_KNOWN=1
+if ac_ifcpp 'if 0' compiler_fails '' \
+ 'if the compiler does not fail correctly'; then
+ save_CFLAGS=$CFLAGS
+ : ${HAVE_CAN_DELEXE=x}
+ case $ct in
+ dec)
+ CFLAGS="$CFLAGS ${ccpl}-non_shared"
+ ac_testn can_delexe compiler_fails 0 'for the -non_shared linker option' <<-EOF
+ #include <unistd.h>
+ int main(void) { return (isatty(0)); }
+ EOF
+ ;;
+ dmc)
+ CFLAGS="$CFLAGS ${ccpl}/DELEXECUTABLE"
+ ac_testn can_delexe compiler_fails 0 'for the /DELEXECUTABLE linker option' <<-EOF
+ #include <unistd.h>
+ int main(void) { return (isatty(0)); }
+ EOF
+ ;;
+ *)
+ exit 1
+ ;;
+ esac
+ test 1 = $HAVE_CAN_DELEXE || CFLAGS=$save_CFLAGS
+ ac_testn compiler_still_fails '' 'if the compiler still does not fail correctly' <<-EOF
+ EOF
+ test 1 = $HAVE_COMPILER_STILL_FAILS && exit 1
+fi
+if ac_ifcpp 'ifdef __TINYC__' couldbe_tcc '!' compiler_known 0 \
+ 'if this could be tcc'; then
+ ct=tcc
+ CPP='cpp -D__TINYC__'
+ HAVE_COMPILER_KNOWN=1
+fi
+
+case $ct in
+bcc)
+ save_NOWARN="${ccpc}-w"
+ DOWARN="${ccpc}-w!"
+ ;;
+dec)
+ # -msg_* flags not used yet, or is -w2 correct?
+ ;;
+dmc)
+ save_NOWARN="${ccpc}-w"
+ DOWARN="${ccpc}-wx"
+ ;;
+hpcc)
+ save_NOWARN=
+ DOWARN=+We
+ ;;
+kencc)
+ save_NOWARN=
+ DOWARN=
+ ;;
+mipspro)
+ save_NOWARN=
+ DOWARN="-diag_error 1-10000"
+ ;;
+msc)
+ save_NOWARN="${ccpc}/w"
+ DOWARN="${ccpc}/WX"
+ ;;
+sunpro)
+ test x"$save_NOWARN" = x"" && save_NOWARN='-errwarn=%none'
+ ac_flags 0 errwarnnone "$save_NOWARN"
+ test 1 = $HAVE_CAN_ERRWARNNONE || save_NOWARN=
+ ac_flags 0 errwarnall "-errwarn=%all"
+ test 1 = $HAVE_CAN_ERRWARNALL && DOWARN="-errwarn=%all"
+ ;;
+tendra)
+ save_NOWARN=-w
+ ;;
+ucode)
+ save_NOWARN=
+ DOWARN=-w2
+ ;;
+watcom)
+ save_NOWARN=
+ DOWARN=-Wc,-we
+ ;;
+xlc)
+ save_NOWARN=-qflag=i:e
+ DOWARN=-qflag=i:i
+ ;;
+*)
+ test x"$save_NOWARN" = x"" && save_NOWARN=-Wno-error
+ ac_flags 0 wnoerror "$save_NOWARN"
+ test 1 = $HAVE_CAN_WNOERROR || save_NOWARN=
+ ac_flags 0 werror -Werror
+ test 1 = $HAVE_CAN_WERROR && DOWARN=-Werror
+ test $ct = icc && DOWARN="$DOWARN -wd1419"
+ ;;
+esac
+NOWARN=$save_NOWARN
+
+#
+# Compiler: extra flags (-O2 -f* -W* etc.)
+#
+i=`echo :"$orig_CFLAGS" | sed 's/^://' | tr -c -d $alll$allu$alln`
+# optimisation: only if orig_CFLAGS is empty
+test x"$i" = x"" && case $ct in
+hpcc)
+ phase=u
+ ac_flags 1 otwo +O2
+ phase=x
+ ;;
+kencc|tcc|tendra)
+ # no special optimisation
+ ;;
+sunpro)
+ cat >x <<-'EOF'
+ #include <unistd.h>
+ int main(void) { return (isatty(0)); }
+ #define __IDSTRING_CONCAT(l,p) __LINTED__ ## l ## _ ## p
+ #define __IDSTRING_EXPAND(l,p) __IDSTRING_CONCAT(l,p)
+ #define pad void __IDSTRING_EXPAND(__LINE__,x)(void) { }
+ EOF
+ yes pad | head -n 256 >>x
+ ac_flags - 1 otwo -xO2 <x
+ rmf x
+ ;;
+xlc)
+ ac_flags 1 othree "-O3 -qstrict"
+ test 1 = $HAVE_CAN_OTHREE || ac_flags 1 otwo -O2
+ ;;
+*)
+ ac_flags 1 otwo -O2
+ test 1 = $HAVE_CAN_OTWO || ac_flags 1 optimise -O
+ ;;
+esac
+# other flags: just add them if they are supported
+i=0
+case $ct in
+bcc)
+ ac_flags 1 strpool "${ccpc}-d" 'if string pooling can be enabled'
+ ;;
+clang)
+ i=1
+ ;;
+dec)
+ ac_flags 0 verb -verbose
+ ac_flags 1 rodata -readonly_strings
+ ;;
+dmc)
+ ac_flags 1 decl "${ccpc}-r" 'for strict prototype checks'
+ ac_flags 1 schk "${ccpc}-s" 'for stack overflow checking'
+ ;;
+gcc)
+ # The following tests run with -Werror (gcc only) if possible
+ NOWARN=$DOWARN; phase=u
+ ac_flags 1 wnodeprecateddecls -Wno-deprecated-declarations
+ # mksh is not written in CFrustFrust!
+ ac_flags 1 no_eh_frame -fno-asynchronous-unwind-tables
+ ac_flags 1 fnostrictaliasing -fno-strict-aliasing
+ ac_flags 1 fstackprotectorstrong -fstack-protector-strong
+ test 1 = $HAVE_CAN_FSTACKPROTECTORSTRONG || \
+ ac_flags 1 fstackprotectorall -fstack-protector-all
+ test $cm = dragonegg && case " $CC $CFLAGS $LDFLAGS " in
+ *\ -fplugin=*dragonegg*) ;;
+ *) ac_flags 1 fplugin_dragonegg -fplugin=dragonegg ;;
+ esac
+ case $cm in
+ combine)
+ fv=0
+ checks='7 8'
+ ;;
+ lto)
+ fv=0
+ checks='1 2 3 4 5 6 7 8'
+ ;;
+ *)
+ fv=1
+ ;;
+ esac
+ test $fv = 1 || for what in $checks; do
+ test $fv = 1 && break
+ case $what in
+ 1) t_cflags='-flto=jobserver'
+ t_ldflags='-fuse-linker-plugin'
+ t_use=1 t_name=fltojs_lp ;;
+ 2) t_cflags='-flto=jobserver' t_ldflags=''
+ t_use=1 t_name=fltojs_nn ;;
+ 3) t_cflags='-flto=jobserver'
+ t_ldflags='-fno-use-linker-plugin -fwhole-program'
+ t_use=1 t_name=fltojs_np ;;
+ 4) t_cflags='-flto'
+ t_ldflags='-fuse-linker-plugin'
+ t_use=1 t_name=fltons_lp ;;
+ 5) t_cflags='-flto' t_ldflags=''
+ t_use=1 t_name=fltons_nn ;;
+ 6) t_cflags='-flto'
+ t_ldflags='-fno-use-linker-plugin -fwhole-program'
+ t_use=1 t_name=fltons_np ;;
+ 7) t_cflags='-fwhole-program --combine' t_ldflags=''
+ t_use=0 t_name=combine cm=combine ;;
+ 8) fv=1 cm=normal ;;
+ esac
+ test $fv = 1 && break
+ ac_flags $t_use $t_name "$t_cflags" \
+ "if gcc supports $t_cflags $t_ldflags" "$t_ldflags"
+ done
+ i=1
+ ;;
+hpcc)
+ phase=u
+ # probably not needed
+ #ac_flags 1 agcc -Agcc 'for support of GCC extensions'
+ phase=x
+ ;;
+icc)
+ ac_flags 1 fnobuiltinsetmode -fno-builtin-setmode
+ ac_flags 1 fnostrictaliasing -fno-strict-aliasing
+ ac_flags 1 fstacksecuritycheck -fstack-security-check
+ i=1
+ ;;
+mipspro)
+ ac_flags 1 fullwarn -fullwarn 'for remark output support'
+ ;;
+msc)
+ ac_flags 1 strpool "${ccpc}/GF" 'if string pooling can be enabled'
+ echo 'int main(void) { char test[64] = ""; return (*test); }' >x
+ ac_flags - 1 stackon "${ccpc}/GZ" 'if stack checks can be enabled' <x
+ ac_flags - 1 stckall "${ccpc}/Ge" 'stack checks for all functions' <x
+ ac_flags - 1 secuchk "${ccpc}/GS" 'for compiler security checks' <x
+ rmf x
+ ac_flags 1 wall "${ccpc}/Wall" 'to enable all warnings'
+ ac_flags 1 wp64 "${ccpc}/Wp64" 'to enable 64-bit warnings'
+ ;;
+nwcc)
+ i=1
+ #broken# ac_flags 1 ssp -stackprotect
+ ;;
+sunpro)
+ phase=u
+ ac_flags 1 v -v
+ ac_flags 1 ipo -xipo 'for cross-module optimisation'
+ phase=x
+ ;;
+tcc)
+ : #broken# ac_flags 1 boundschk -b
+ ;;
+tendra)
+ ac_flags 0 ysystem -Ysystem
+ test 1 = $HAVE_CAN_YSYSTEM && CPPFLAGS="-Ysystem $CPPFLAGS"
+ ac_flags 1 extansi -Xa
+ ;;
+xlc)
+ ac_flags 1 rodata "-qro -qroconst -qroptr"
+ ac_flags 1 rtcheck -qcheck=all
+ #ac_flags 1 rtchkc -qextchk # reported broken
+ ac_flags 1 wformat "-qformat=all -qformat=nozln"
+ #ac_flags 1 wp64 -qwarn64 # too verbose for now
+ ;;
+esac
+# flags common to a subset of compilers (run with -Werror on gcc)
+if test 1 = $i; then
+ ac_flags 1 wall -Wall
+ ac_flags 1 fwrapv -fwrapv
+fi
+
+phase=x
+# The following tests run with -Werror or similar (all compilers) if possible
+NOWARN=$DOWARN
+test $ct = pcc && phase=u
+
+#
+# Compiler: check for stuff that only generates warnings
+#
+ac_test attribute_bounded '' 'for __attribute__((__bounded__))' <<-'EOF'
+ #if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
+ extern int thiswillneverbedefinedIhope(void);
+ /* force a failure: TenDRA and gcc 1.42 have false positive here */
+ int main(void) { return (thiswillneverbedefinedIhope()); }
+ #else
+ #include <string.h>
+ #undef __attribute__
+ int xcopy(const void *, void *, size_t)
+ __attribute__((__bounded__(__buffer__, 1, 3)))
+ __attribute__((__bounded__(__buffer__, 2, 3)));
+ int main(int ac, char *av[]) { return (xcopy(av[0], av[--ac], 1)); }
+ int xcopy(const void *s, void *d, size_t n) {
+ /*
+ * if memmove does not exist, we are not on a system
+ * with GCC with __bounded__ attribute either so poo
+ */
+ memmove(d, s, n); return ((int)n);
+ }
+ #endif
+EOF
+ac_test attribute_format '' 'for __attribute__((__format__))' <<-'EOF'
+ #if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
+ extern int thiswillneverbedefinedIhope(void);
+ /* force a failure: TenDRA and gcc 1.42 have false positive here */
+ int main(void) { return (thiswillneverbedefinedIhope()); }
+ #else
+ #define fprintf printfoo
+ #include <stdio.h>
+ #undef __attribute__
+ #undef fprintf
+ extern int fprintf(FILE *, const char *format, ...)
+ __attribute__((__format__(__printf__, 2, 3)));
+ int main(int ac, char **av) { return (fprintf(stderr, "%s%d", *av, ac)); }
+ #endif
+EOF
+ac_test attribute_noreturn '' 'for __attribute__((__noreturn__))' <<-'EOF'
+ #if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
+ extern int thiswillneverbedefinedIhope(void);
+ /* force a failure: TenDRA and gcc 1.42 have false positive here */
+ int main(void) { return (thiswillneverbedefinedIhope()); }
+ #else
+ #include <stdlib.h>
+ #undef __attribute__
+ void fnord(void) __attribute__((__noreturn__));
+ int main(void) { fnord(); }
+ void fnord(void) { exit(0); }
+ #endif
+EOF
+ac_test attribute_pure '' 'for __attribute__((__pure__))' <<-'EOF'
+ #if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
+ extern int thiswillneverbedefinedIhope(void);
+ /* force a failure: TenDRA and gcc 1.42 have false positive here */
+ int main(void) { return (thiswillneverbedefinedIhope()); }
+ #else
+ #include <unistd.h>
+ #undef __attribute__
+ int foo(const char *) __attribute__((__pure__));
+ int main(int ac, char **av) { return (foo(av[ac - 1]) + isatty(0)); }
+ int foo(const char *s) { return ((int)s[0]); }
+ #endif
+EOF
+ac_test attribute_unused '' 'for __attribute__((__unused__))' <<-'EOF'
+ #if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
+ extern int thiswillneverbedefinedIhope(void);
+ /* force a failure: TenDRA and gcc 1.42 have false positive here */
+ int main(void) { return (thiswillneverbedefinedIhope()); }
+ #else
+ #include <unistd.h>
+ #undef __attribute__
+ int main(int ac __attribute__((__unused__)), char **av
+ __attribute__((__unused__))) { return (isatty(0)); }
+ #endif
+EOF
+ac_test attribute_used '' 'for __attribute__((__used__))' <<-'EOF'
+ #if defined(__TenDRA__) || (defined(__GNUC__) && (__GNUC__ < 2))
+ extern int thiswillneverbedefinedIhope(void);
+ /* force a failure: TenDRA and gcc 1.42 have false positive here */
+ int main(void) { return (thiswillneverbedefinedIhope()); }
+ #else
+ #include <unistd.h>
+ #undef __attribute__
+ static const char fnord[] __attribute__((__used__)) = "42";
+ int main(void) { return (isatty(0)); }
+ #endif
+EOF
+
+# End of tests run with -Werror
+NOWARN=$save_NOWARN
+phase=x
+
+#
+# mksh: flavours (full/small mksh, omit certain stuff)
+#
+if ac_ifcpp 'ifdef MKSH_SMALL' isset_MKSH_SMALL '' \
+ "if a reduced-feature mksh is requested"; then
+ : ${HAVE_NICE=0}
+ : ${HAVE_PERSISTENT_HISTORY=0}
+ check_categories="$check_categories smksh"
+ HAVE_ISSET_MKSH_CONSERVATIVE_FDS=1 # from sh.h
+fi
+ac_ifcpp 'if defined(MKSH_BINSHPOSIX) || defined(MKSH_BINSHREDUCED)' \
+ isset_MKSH_BINSH '' 'if invoking as sh should be handled specially' && \
+ check_categories="$check_categories binsh"
+ac_ifcpp 'ifdef MKSH_UNEMPLOYED' isset_MKSH_UNEMPLOYED '' \
+ "if mksh will be built without job control" && \
+ check_categories="$check_categories arge"
+ac_ifcpp 'ifdef MKSH_NOPROSPECTOFWORK' isset_MKSH_NOPROSPECTOFWORK '' \
+ "if mksh will be built without job signals" && \
+ check_categories="$check_categories arge nojsig"
+ac_ifcpp 'ifdef MKSH_ASSUME_UTF8' isset_MKSH_ASSUME_UTF8 '' \
+ 'if the default UTF-8 mode is specified' && : ${HAVE_SETLOCALE_CTYPE=0}
+ac_ifcpp 'ifdef MKSH_CONSERVATIVE_FDS' isset_MKSH_CONSERVATIVE_FDS '' \
+ 'if traditional/conservative fd use is requested' && \
+ check_categories="$check_categories convfds"
+#ac_ifcpp 'ifdef MKSH_DISABLE_DEPRECATED' isset_MKSH_DISABLE_DEPRECATED '' \
+# "if deprecated features are to be omitted" && \
+# check_categories="$check_categories nodeprecated"
+#ac_ifcpp 'ifdef MKSH_DISABLE_EXPERIMENTAL' isset_MKSH_DISABLE_EXPERIMENTAL '' \
+# "if experimental features are to be omitted" && \
+# check_categories="$check_categories noexperimental"
+ac_ifcpp 'ifdef MKSH_MIDNIGHTBSD01ASH_COMPAT' isset_MKSH_MIDNIGHTBSD01ASH_COMPAT '' \
+ 'if the MidnightBSD 0.1 ash compatibility mode is requested' && \
+ check_categories="$check_categories mnbsdash"
+
+#
+# Environment: headers
+#
+ac_header sys/time.h sys/types.h
+ac_header time.h sys/types.h
+test "11" = "$HAVE_SYS_TIME_H$HAVE_TIME_H" || HAVE_BOTH_TIME_H=0
+ac_test both_time_h '' 'whether <sys/time.h> and <time.h> can both be included' <<-'EOF'
+ #include <sys/types.h>
+ #include <sys/time.h>
+ #include <time.h>
+ #include <unistd.h>
+ int main(void) { struct tm tm; return ((int)sizeof(tm) + isatty(0)); }
+EOF
+ac_header sys/bsdtypes.h
+ac_header sys/file.h sys/types.h
+ac_header sys/mkdev.h sys/types.h
+ac_header sys/mman.h sys/types.h
+ac_header sys/param.h
+ac_header sys/resource.h sys/types.h _time
+ac_header sys/select.h sys/types.h
+ac_header sys/sysmacros.h
+ac_header bstring.h
+ac_header grp.h sys/types.h
+ac_header libgen.h
+ac_header libutil.h sys/types.h
+ac_header paths.h
+ac_header stdint.h stdarg.h
+# include strings.h only if compatible with string.h
+ac_header strings.h sys/types.h string.h
+ac_header termios.h
+ac_header ulimit.h sys/types.h
+ac_header values.h
+
+#
+# Environment: definitions
+#
+echo '#include <sys/types.h>
+#include <unistd.h>
+/* check that off_t can represent 2^63-1 correctly, thx FSF */
+#define LARGE_OFF_T ((((off_t)1 << 31) << 31) - 1 + (((off_t)1 << 31) << 31))
+int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721 &&
+ LARGE_OFF_T % 2147483647 == 1) ? 1 : -1];
+int main(void) { return (isatty(0)); }' >lft.c
+ac_testn can_lfs '' "for large file support" <lft.c
+save_CPPFLAGS=$CPPFLAGS
+add_cppflags -D_FILE_OFFSET_BITS=64
+ac_testn can_lfs_sus '!' can_lfs 0 "... with -D_FILE_OFFSET_BITS=64" <lft.c
+if test 0 = $HAVE_CAN_LFS_SUS; then
+ CPPFLAGS=$save_CPPFLAGS
+ add_cppflags -D_LARGE_FILES=1
+ ac_testn can_lfs_aix '!' can_lfs 0 "... with -D_LARGE_FILES=1" <lft.c
+ test 1 = $HAVE_CAN_LFS_AIX || CPPFLAGS=$save_CPPFLAGS
+fi
+rmf lft* # end of large file support test
+
+#
+# Environment: types
+#
+ac_test can_inttypes '!' stdint_h 1 "for standard 32-bit integer types" <<-'EOF'
+ #include <sys/types.h>
+ #include <stddef.h>
+ int main(int ac, char **av) { return ((uint32_t)(ptrdiff_t)*av + (int32_t)ac); }
+EOF
+ac_test can_ucbints '!' can_inttypes 1 "for UCB 32-bit integer types" <<-'EOF'
+ #include <sys/types.h>
+ #include <stddef.h>
+ int main(int ac, char **av) { return ((u_int32_t)(ptrdiff_t)*av + (int32_t)ac); }
+EOF
+ac_test can_int8type '!' stdint_h 1 "for standard 8-bit integer type" <<-'EOF'
+ #include <sys/types.h>
+ #include <stddef.h>
+ int main(int ac, char **av) { return ((uint8_t)(ptrdiff_t)av[ac]); }
+EOF
+ac_test can_ucbint8 '!' can_int8type 1 "for UCB 8-bit integer type" <<-'EOF'
+ #include <sys/types.h>
+ #include <stddef.h>
+ int main(int ac, char **av) { return ((u_int8_t)(ptrdiff_t)av[ac]); }
+EOF
+
+ac_test rlim_t <<-'EOF'
+ #include <sys/types.h>
+ #if HAVE_BOTH_TIME_H
+ #include <sys/time.h>
+ #include <time.h>
+ #elif HAVE_SYS_TIME_H
+ #include <sys/time.h>
+ #elif HAVE_TIME_H
+ #include <time.h>
+ #endif
+ #if HAVE_SYS_RESOURCE_H
+ #include <sys/resource.h>
+ #endif
+ #include <unistd.h>
+ int main(void) { return (((int)(rlim_t)0) + isatty(0)); }
+EOF
+
+# only testn: added later below
+ac_testn sig_t <<-'EOF'
+ #include <sys/types.h>
+ #include <signal.h>
+ #include <stddef.h>
+ volatile sig_t foo = (sig_t)0;
+ int main(void) { return (foo == (sig_t)0); }
+EOF
+
+ac_testn sighandler_t '!' sig_t 0 <<-'EOF'
+ #include <sys/types.h>
+ #include <signal.h>
+ #include <stddef.h>
+ volatile sighandler_t foo = (sighandler_t)0;
+ int main(void) { return (foo == (sighandler_t)0); }
+EOF
+if test 1 = $HAVE_SIGHANDLER_T; then
+ add_cppflags -Dsig_t=sighandler_t
+ HAVE_SIG_T=1
+fi
+
+ac_testn __sighandler_t '!' sig_t 0 <<-'EOF'
+ #include <sys/types.h>
+ #include <signal.h>
+ #include <stddef.h>
+ volatile __sighandler_t foo = (__sighandler_t)0;
+ int main(void) { return (foo == (__sighandler_t)0); }
+EOF
+if test 1 = $HAVE___SIGHANDLER_T; then
+ add_cppflags -Dsig_t=__sighandler_t
+ HAVE_SIG_T=1
+fi
+
+test 1 = $HAVE_SIG_T || add_cppflags -Dsig_t=nosig_t
+ac_cppflags SIG_T
+
+#
+# check whether whatever we use for the final link will succeed
+#
+if test $cm = makefile; then
+ : nothing to check
+else
+ HAVE_LINK_WORKS=x
+ ac_testinit link_works '' 'checking if the final link command may succeed'
+ fv=1
+ cat >conftest.c <<-'EOF'
+ #define EXTERN
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ __RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.662 2014/06/29 10:56:08 tg Exp $");
+ int main(void) { printf("Hello, World!\n"); return (isatty(0)); }
+EOF
+ case $cm in
+ llvm)
+ v "$CC $CFLAGS $CPPFLAGS $NOWARN -emit-llvm -c conftest.c" || fv=0
+ rmf $tfn.s
+ test $fv = 0 || v "llvm-link -o - conftest.o | opt $optflags | llc -o $tfn.s" || fv=0
+ test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn $tfn.s $LIBS $ccpr"
+ ;;
+ dragonegg)
+ v "$CC $CFLAGS $CPPFLAGS $NOWARN -S -flto conftest.c" || fv=0
+ test $fv = 0 || v "mv conftest.s conftest.ll"
+ test $fv = 0 || v "llvm-as conftest.ll" || fv=0
+ rmf $tfn.s
+ test $fv = 0 || v "llvm-link -o - conftest.bc | opt $optflags | llc -o $tfn.s" || fv=0
+ test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn $tfn.s $LIBS $ccpr"
+ ;;
+ combine)
+ v "$CC $CFLAGS $CPPFLAGS $LDFLAGS -fwhole-program --combine $NOWARN -o $tcfn conftest.c $LIBS $ccpr"
+ ;;
+ lto|normal)
+ cm=normal
+ v "$CC $CFLAGS $CPPFLAGS $NOWARN -c conftest.c" || fv=0
+ test $fv = 0 || v "$CC $CFLAGS $LDFLAGS -o $tcfn conftest.o $LIBS $ccpr"
+ ;;
+ esac
+ test -f $tcfn || fv=0
+ ac_testdone
+ test $fv = 1 || exit 1
+fi
+
+#
+# Environment: errors and signals
+#
+test x"NetBSD" = x"$TARGET_OS" && $e Ignore the compatibility warning.
+
+ac_testn sys_errlist '' "the sys_errlist[] array and sys_nerr" <<-'EOF'
+ extern const int sys_nerr;
+ extern const char * const sys_errlist[];
+ extern int isatty(int);
+ int main(void) { return (*sys_errlist[sys_nerr - 1] + isatty(0)); }
+EOF
+ac_testn _sys_errlist '!' sys_errlist 0 "the _sys_errlist[] array and _sys_nerr" <<-'EOF'
+ extern const int _sys_nerr;
+ extern const char * const _sys_errlist[];
+ extern int isatty(int);
+ int main(void) { return (*_sys_errlist[_sys_nerr - 1] + isatty(0)); }
+EOF
+if test 1 = "$HAVE__SYS_ERRLIST"; then
+ add_cppflags -Dsys_nerr=_sys_nerr
+ add_cppflags -Dsys_errlist=_sys_errlist
+ HAVE_SYS_ERRLIST=1
+fi
+ac_cppflags SYS_ERRLIST
+
+for what in name list; do
+ uwhat=`upper $what`
+ ac_testn sys_sig$what '' "the sys_sig${what}[] array" <<-EOF
+ extern const char * const sys_sig${what}[];
+ extern int isatty(int);
+ int main(void) { return (sys_sig${what}[0][0] + isatty(0)); }
+ EOF
+ ac_testn _sys_sig$what '!' sys_sig$what 0 "the _sys_sig${what}[] array" <<-EOF
+ extern const char * const _sys_sig${what}[];
+ extern int isatty(int);
+ int main(void) { return (_sys_sig${what}[0][0] + isatty(0)); }
+ EOF
+ eval uwhat_v=\$HAVE__SYS_SIG$uwhat
+ if test 1 = "$uwhat_v"; then
+ add_cppflags -Dsys_sig$what=_sys_sig$what
+ eval HAVE_SYS_SIG$uwhat=1
+ fi
+ ac_cppflags SYS_SIG$uwhat
+done
+
+#
+# Environment: library functions
+#
+ac_test flock <<-'EOF'
+ #include <sys/types.h>
+ #include <fcntl.h>
+ #undef flock
+ #if HAVE_SYS_FILE_H
+ #include <sys/file.h>
+ #endif
+ int main(void) { return (flock(0, LOCK_EX | LOCK_UN)); }
+EOF
+
+ac_test lock_fcntl '!' flock 1 'whether we can lock files with fcntl' <<-'EOF'
+ #include <fcntl.h>
+ #undef flock
+ int main(void) {
+ struct flock lks;
+ lks.l_type = F_WRLCK | F_UNLCK;
+ return (fcntl(0, F_SETLKW, &lks));
+ }
+EOF
+
+ac_test getrusage <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ int main(void) {
+ struct rusage ru;
+ return (getrusage(RUSAGE_SELF, &ru) +
+ getrusage(RUSAGE_CHILDREN, &ru));
+ }
+EOF
+
+ac_test getsid <<-'EOF'
+ #include <unistd.h>
+ int main(void) { return ((int)getsid(0)); }
+EOF
+
+ac_test gettimeofday <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ int main(void) { struct timeval tv; return (gettimeofday(&tv, NULL)); }
+EOF
+
+ac_test killpg <<-'EOF'
+ #include <signal.h>
+ int main(int ac, char *av[]) { return (av[0][killpg(123, ac)]); }
+EOF
+
+ac_test memmove <<-'EOF'
+ #include <sys/types.h>
+ #include <stddef.h>
+ #include <string.h>
+ #if HAVE_STRINGS_H
+ #include <strings.h>
+ #endif
+ int main(int ac, char *av[]) {
+ return (*(int *)(void *)memmove(av[0], av[1], (size_t)ac));
+ }
+EOF
+
+ac_test mknod '' 'if to use mknod(), makedev() and friends' <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ int main(int ac, char *av[]) {
+ dev_t dv;
+ dv = makedev((unsigned int)ac, (unsigned int)av[0][0]);
+ return (mknod(av[0], (mode_t)0, dv) ? (int)major(dv) :
+ (int)minor(dv));
+ }
+EOF
+
+ac_test mmap lock_fcntl 0 'for mmap and munmap' <<-'EOF'
+ #include <sys/types.h>
+ #if HAVE_SYS_FILE_H
+ #include <sys/file.h>
+ #endif
+ #if HAVE_SYS_MMAN_H
+ #include <sys/mman.h>
+ #endif
+ #include <stddef.h>
+ #include <stdlib.h>
+ int main(void) { return ((void *)mmap(NULL, (size_t)0,
+ PROT_READ, MAP_PRIVATE, 0, (off_t)0) == (void *)NULL ? 1 :
+ munmap(NULL, 0)); }
+EOF
+
+ac_test nice <<-'EOF'
+ #include <unistd.h>
+ int main(void) { return (nice(4)); }
+EOF
+
+ac_test revoke <<-'EOF'
+ #include <sys/types.h>
+ #if HAVE_LIBUTIL_H
+ #include <libutil.h>
+ #endif
+ #include <unistd.h>
+ int main(int ac, char *av[]) { return (ac + revoke(av[0])); }
+EOF
+
+ac_test setlocale_ctype '' 'setlocale(LC_CTYPE, "")' <<-'EOF'
+ #include <locale.h>
+ #include <stddef.h>
+ int main(void) { return ((int)(ptrdiff_t)(void *)setlocale(LC_CTYPE, "")); }
+EOF
+
+ac_test langinfo_codeset setlocale_ctype 0 'nl_langinfo(CODESET)' <<-'EOF'
+ #include <langinfo.h>
+ #include <stddef.h>
+ int main(void) { return ((int)(ptrdiff_t)(void *)nl_langinfo(CODESET)); }
+EOF
+
+ac_test select <<-'EOF'
+ #include <sys/types.h>
+ #if HAVE_BOTH_TIME_H
+ #include <sys/time.h>
+ #include <time.h>
+ #elif HAVE_SYS_TIME_H
+ #include <sys/time.h>
+ #elif HAVE_TIME_H
+ #include <time.h>
+ #endif
+ #if HAVE_SYS_BSDTYPES_H
+ #include <sys/bsdtypes.h>
+ #endif
+ #if HAVE_SYS_SELECT_H
+ #include <sys/select.h>
+ #endif
+ #if HAVE_BSTRING_H
+ #include <bstring.h>
+ #endif
+ #include <stddef.h>
+ #include <stdlib.h>
+ #include <string.h>
+ #if HAVE_STRINGS_H
+ #include <strings.h>
+ #endif
+ #include <unistd.h>
+ int main(void) {
+ struct timeval tv = { 1, 200000 };
+ fd_set fds; FD_ZERO(&fds); FD_SET(0, &fds);
+ return (select(FD_SETSIZE, &fds, NULL, NULL, &tv));
+ }
+EOF
+
+ac_test setresugid <<-'EOF'
+ #include <sys/types.h>
+ #include <unistd.h>
+ int main(void) { return (setresuid(0,0,0) + setresgid(0,0,0)); }
+EOF
+
+ac_test setgroups setresugid 0 <<-'EOF'
+ #include <sys/types.h>
+ #if HAVE_GRP_H
+ #include <grp.h>
+ #endif
+ #include <unistd.h>
+ int main(void) { gid_t gid = 0; return (setgroups(0, &gid)); }
+EOF
+
+if test x"$et" = x"klibc"; then
+
+ ac_testn __rt_sigsuspend '' 'whether klibc uses RT signals' <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ extern int __rt_sigsuspend(const sigset_t *, size_t);
+ int main(void) { return (__rt_sigsuspend(NULL, 0)); }
+EOF
+
+ # no? damn! legacy crap ahead!
+
+ ac_testn __sigsuspend_s '!' __rt_sigsuspend 1 \
+ 'whether sigsuspend is usable (1/2)' <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ extern int __sigsuspend_s(sigset_t);
+ int main(void) { return (__sigsuspend_s(0)); }
+EOF
+ ac_testn __sigsuspend_xxs '!' __sigsuspend_s 1 \
+ 'whether sigsuspend is usable (2/2)' <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ extern int __sigsuspend_xxs(int, int, sigset_t);
+ int main(void) { return (__sigsuspend_xxs(0, 0, 0)); }
+EOF
+
+ if test "000" = "$HAVE___RT_SIGSUSPEND$HAVE___SIGSUSPEND_S$HAVE___SIGSUSPEND_XXS"; then
+ # no usable sigsuspend(), use pause() *ugh*
+ add_cppflags -DMKSH_NO_SIGSUSPEND
+ fi
+fi
+
+ac_test strerror '!' sys_errlist 0 <<-'EOF'
+ extern char *strerror(int);
+ int main(int ac, char *av[]) { return (*strerror(*av[ac])); }
+EOF
+
+ac_test strsignal '!' sys_siglist 0 <<-'EOF'
+ #include <string.h>
+ #include <signal.h>
+ int main(void) { return (strsignal(1)[0]); }
+EOF
+
+ac_test strlcpy <<-'EOF'
+ #include <string.h>
+ int main(int ac, char *av[]) { return (strlcpy(*av, av[1],
+ (size_t)ac)); }
+EOF
+
+#
+# check headers for declarations
+#
+ac_test flock_decl flock 1 'for declaration of flock()' <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ #if HAVE_SYS_FILE_H
+ #include <sys/file.h>
+ #endif
+ int main(void) { return ((flock)(0, 0)); }
+EOF
+ac_test revoke_decl revoke 1 'for declaration of revoke()' <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ int main(void) { return ((revoke)("")); }
+EOF
+ac_test sys_errlist_decl sys_errlist 0 "for declaration of sys_errlist[] and sys_nerr" <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ int main(void) { return (*sys_errlist[sys_nerr - 1] + isatty(0)); }
+EOF
+ac_test sys_siglist_decl sys_siglist 0 'for declaration of sys_siglist[]' <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ int main(void) { return (sys_siglist[0][0] + isatty(0)); }
+EOF
+
+#
+# other checks
+#
+fd='if to use persistent history'
+ac_cache PERSISTENT_HISTORY || case $HAVE_MMAP$HAVE_FLOCK$HAVE_LOCK_FCNTL in
+11*|101) fv=1 ;;
+esac
+test 1 = $fv || check_categories="$check_categories no-histfile"
+ac_testdone
+ac_cppflags
+
+save_CFLAGS=$CFLAGS
+ac_testn compile_time_asserts_$$ '' 'whether compile-time assertions pass' <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ #ifndef CHAR_BIT
+ #define CHAR_BIT 8 /* defuse this test on really legacy systems */
+ #endif
+ struct ctasserts {
+ #define cta(name, assertion) char name[(assertion) ? 1 : -1]
+/* this one should be defined by the standard */
+cta(char_is_1_char, (sizeof(char) == 1) && (sizeof(signed char) == 1) &&
+ (sizeof(unsigned char) == 1));
+cta(char_is_8_bits, ((CHAR_BIT) == 8) && ((int)(unsigned char)0xFF == 0xFF) &&
+ ((int)(unsigned char)0x100 == 0) && ((int)(unsigned char)(int)-1 == 0xFF));
+/* the next assertion is probably not really needed */
+cta(short_is_2_char, sizeof(short) == 2);
+cta(short_size_no_matter_of_signedness, sizeof(short) == sizeof(unsigned short));
+/* the next assertion is probably not really needed */
+cta(int_is_4_char, sizeof(int) == 4);
+cta(int_size_no_matter_of_signedness, sizeof(int) == sizeof(unsigned int));
+
+cta(long_ge_int, sizeof(long) >= sizeof(int));
+cta(long_size_no_matter_of_signedness, sizeof(long) == sizeof(unsigned long));
+
+#ifndef MKSH_LEGACY_MODE
+/* the next assertion is probably not really needed */
+cta(ari_is_4_char, sizeof(mksh_ari_t) == 4);
+/* but this is */
+cta(ari_has_31_bit, 0 < (mksh_ari_t)(((((mksh_ari_t)1 << 15) << 15) - 1) * 2 + 1));
+/* the next assertion is probably not really needed */
+cta(uari_is_4_char, sizeof(mksh_uari_t) == 4);
+/* but the next three are; we REQUIRE unsigned integer wraparound */
+cta(uari_has_31_bit, 0 < (mksh_uari_t)(((((mksh_uari_t)1 << 15) << 15) - 1) * 2 + 1));
+cta(uari_has_32_bit, 0 < (mksh_uari_t)(((((mksh_uari_t)1 << 15) << 15) - 1) * 4 + 3));
+cta(uari_wrap_32_bit,
+ (mksh_uari_t)(((((mksh_uari_t)1 << 15) << 15) - 1) * 4 + 3) >
+ (mksh_uari_t)(((((mksh_uari_t)1 << 15) << 15) - 1) * 4 + 4));
+#define NUM 22
+#else
+#define NUM 16
+#endif
+/* these are always required */
+cta(ari_is_signed, (mksh_ari_t)-1 < (mksh_ari_t)0);
+cta(uari_is_unsigned, (mksh_uari_t)-1 > (mksh_uari_t)0);
+/* we require these to have the precisely same size and assume 2s complement */
+cta(ari_size_no_matter_of_signedness, sizeof(mksh_ari_t) == sizeof(mksh_uari_t));
+
+cta(sizet_size_no_matter_of_signedness, sizeof(ssize_t) == sizeof(size_t));
+cta(ptrdifft_sizet_same_size, sizeof(ptrdiff_t) == sizeof(size_t));
+cta(ptrdifft_voidptr_same_size, sizeof(ptrdiff_t) == sizeof(void *));
+cta(ptrdifft_funcptr_same_size, sizeof(ptrdiff_t) == sizeof(void (*)(void)));
+/* our formatting routines assume this */
+cta(ptr_fits_in_long, sizeof(ptrdiff_t) <= sizeof(long));
+/* for struct alignment people */
+ char padding[64 - NUM];
+ };
+char ctasserts_dblcheck[sizeof(struct ctasserts) == 64 ? 1 : -1];
+ int main(void) { return (sizeof(ctasserts_dblcheck) + isatty(0)); }
+EOF
+CFLAGS=$save_CFLAGS
+eval test 1 = \$HAVE_COMPILE_TIME_ASSERTS_$$ || exit 1
+
+#
+# extra checks for legacy mksh
+#
+if test $legacy = 1; then
+ ac_test long_32bit '' 'whether long is 32 bit wide' <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ #ifndef CHAR_BIT
+ #define CHAR_BIT 0
+ #endif
+ struct ctasserts {
+ #define cta(name, assertion) char name[(assertion) ? 1 : -1]
+ cta(char_is_8_bits, (CHAR_BIT) == 8);
+ cta(long_is_32_bits, sizeof(long) == 4);
+ };
+ int main(void) { return (sizeof(struct ctasserts)); }
+EOF
+
+ ac_test long_64bit '!' long_32bit 0 'whether long is 64 bit wide' <<-'EOF'
+ #define MKSH_INCLUDES_ONLY
+ #include "sh.h"
+ #ifndef CHAR_BIT
+ #define CHAR_BIT 0
+ #endif
+ struct ctasserts {
+ #define cta(name, assertion) char name[(assertion) ? 1 : -1]
+ cta(char_is_8_bits, (CHAR_BIT) == 8);
+ cta(long_is_64_bits, sizeof(long) == 8);
+ };
+ int main(void) { return (sizeof(struct ctasserts)); }
+EOF
+
+ case $HAVE_LONG_32BIT$HAVE_LONG_64BIT in
+ 10) check_categories="$check_categories int:32" ;;
+ 01) check_categories="$check_categories int:64" ;;
+ *) check_categories="$check_categories int:u" ;;
+ esac
+fi
+
+#
+# Compiler: Praeprocessor (only if needed)
+#
+test 0 = $HAVE_SYS_SIGNAME && if ac_testinit cpp_dd '' \
+ 'checking if the C Preprocessor supports -dD'; then
+ echo '#define foo bar' >conftest.c
+ vv ']' "$CPP $CFLAGS $CPPFLAGS $NOWARN -dD conftest.c >x"
+ grep '#define foo bar' x >/dev/null 2>&1 && fv=1
+ rmf conftest.c x vv.out
+ ac_testdone
+fi
+
+#
+# End of mirtoconf checks
+#
+$e ... done.
+
+# Some operating systems have ancient versions of ed(1) writing
+# the character count to standard output; cope for that
+echo wq >x
+ed x <x 2>/dev/null | grep 3 >/dev/null 2>&1 && \
+ check_categories="$check_categories $oldish_ed"
+rmf x vv.out
+
+if test 0 = $HAVE_SYS_SIGNAME; then
+ if test 1 = $HAVE_CPP_DD; then
+ $e Generating list of signal names...
+ else
+ $e No list of signal names available via cpp. Falling back...
+ fi
+ sigseenone=:
+ sigseentwo=:
+ echo '#include <signal.h>
+#ifndef NSIG
+#if defined(_NSIG)
+#define NSIG _NSIG
+#elif defined(SIGMAX)
+#define NSIG (SIGMAX+1)
+#elif defined(_SIGMAX)
+#define NSIG (_SIGMAX+1)
+#else
+/* XXX better error out, see sh.h */
+#define NSIG 64
+#endif
+#endif
+int
+mksh_cfg= NSIG
+;' >conftest.c
+ # GNU sed 2.03 segfaults when optimising this to sed -n
+ NSIG=`vq "$CPP $CFLAGS $CPPFLAGS $NOWARN conftest.c" | \
+ grep '^ *mksh_cfg *=' | \
+ sed 's/^ *mksh_cfg *=[ ]*\([()0-9x+-][()0-9x+ -]*\).*$/\1/'`
+ case $NSIG in
+ *mksh_cfg*) $e "Error: NSIG='$NSIG'"; NSIG=0 ;;
+ *[\ \(\)+-]*) NSIG=`"$AWK" "BEGIN { print $NSIG }" </dev/null` ;;
+ esac
+ printf=printf
+ (printf hallo) >/dev/null 2>&1 || printf=echo
+ test $printf = echo || test "`printf %d 42`" = 42 || printf=echo
+ test $printf = echo || NSIG=`printf %d "$NSIG" 2>/dev/null`
+ $printf "NSIG=$NSIG ... "
+ sigs="ABRT FPE ILL INT SEGV TERM ALRM BUS CHLD CONT HUP KILL PIPE QUIT"
+ sigs="$sigs STOP TSTP TTIN TTOU USR1 USR2 POLL PROF SYS TRAP URG VTALRM"
+ sigs="$sigs XCPU XFSZ INFO WINCH EMT IO DIL LOST PWR SAK CLD IOT RESV"
+ test 1 = $HAVE_CPP_DD && test $NSIG -gt 1 && sigs="$sigs "`vq \
+ "$CPP $CFLAGS $CPPFLAGS $NOWARN -dD conftest.c" | \
+ grep '[ ]SIG[A-Z0-9][A-Z0-9]*[ ]' | \
+ sed 's/^.*[ ]SIG\([A-Z0-9][A-Z0-9]*\)[ ].*$/\1/' | sort`
+ test $NSIG -gt 1 || sigs=
+ for name in $sigs; do
+ case $sigseenone in
+ *:$name:*) continue ;;
+ esac
+ sigseenone=$sigseenone$name:
+ echo '#include <signal.h>' >conftest.c
+ echo int >>conftest.c
+ echo mksh_cfg= SIG$name >>conftest.c
+ echo ';' >>conftest.c
+ # GNU sed 2.03 croaks on optimising this, too
+ vq "$CPP $CFLAGS $CPPFLAGS $NOWARN conftest.c" | \
+ grep '^ *mksh_cfg *=' | \
+ sed 's/^ *mksh_cfg *=[ ]*\([0-9][0-9x]*\).*$/:\1 '$name/
+ done | sed -n '/^:[^ ]/s/^://p' | while read nr name; do
+ test $printf = echo || nr=`printf %d "$nr" 2>/dev/null`
+ test $nr -gt 0 && test $nr -le $NSIG || continue
+ case $sigseentwo in
+ *:$nr:*) ;;
+ *) echo " { \"$name\", $nr },"
+ sigseentwo=$sigseentwo$nr:
+ $printf "$name=$nr " >&2
+ ;;
+ esac
+ done 2>&1 >signames.inc
+ rmf conftest.c
+ $e done.
+fi
+
+addsrcs '!' HAVE_STRLCPY strlcpy.c
+addsrcs USE_PRINTF_BUILTIN printf.c
+test 1 = "$USE_PRINTF_BUILTIN" && add_cppflags -DMKSH_PRINTF_BUILTIN
+test 1 = "$HAVE_CAN_VERB" && CFLAGS="$CFLAGS -verbose"
+add_cppflags -DMKSH_BUILD_R=501
+
+$e $bi$me: Finished configuration testing, now producing output.$ao
+
+files=
+objs=
+sp=
+case $tcfn in
+a.exe) mkshexe=$tfn.exe ;;
+*) mkshexe=$tfn ;;
+esac
+case $curdir in
+*\ *) mkshshebang="#!./$mkshexe" ;;
+*) mkshshebang="#!$curdir/$mkshexe" ;;
+esac
+cat >test.sh <<-EOF
+ $mkshshebang
+ LC_ALL=C PATH='$PATH'; export LC_ALL PATH
+ test -n "\$KSH_VERSION" || exit 1
+ set -A check_categories -- $check_categories
+ pflag='$curdir/$mkshexe'
+ sflag='$srcdir/check.t'
+ usee=0 Pflag=0 Sflag=0 uset=0 vflag=1 xflag=0
+ while getopts "C:e:fPp:QSs:t:v" ch; do case \$ch {
+ (C) check_categories[\${#check_categories[*]}]=\$OPTARG ;;
+ (e) usee=1; eflag=\$OPTARG ;;
+ (f) check_categories[\${#check_categories[*]}]=fastbox ;;
+ (P) Pflag=1 ;;
+ (+P) Pflag=0 ;;
+ (p) pflag=\$OPTARG ;;
+ (Q) vflag=0 ;;
+ (+Q) vflag=1 ;;
+ (S) Sflag=1 ;;
+ (+S) Sflag=0 ;;
+ (s) sflag=\$OPTARG ;;
+ (t) uset=1; tflag=\$OPTARG ;;
+ (v) vflag=1 ;;
+ (+v) vflag=0 ;;
+ (*) xflag=1 ;;
+ }
+ done
+ shift \$((OPTIND - 1))
+ set -A args -- '$srcdir/check.pl' -p "\$pflag"
+ x=
+ for y in "\${check_categories[@]}"; do
+ x=\$x,\$y
+ done
+ if [[ -n \$x ]]; then
+ args[\${#args[*]}]=-C
+ args[\${#args[*]}]=\${x#,}
+ fi
+ if (( usee )); then
+ args[\${#args[*]}]=-e
+ args[\${#args[*]}]=\$eflag
+ fi
+ (( Pflag )) && args[\${#args[*]}]=-P
+ if (( uset )); then
+ args[\${#args[*]}]=-t
+ args[\${#args[*]}]=\$tflag
+ fi
+ (( vflag )) && args[\${#args[*]}]=-v
+ (( xflag )) && args[\${#args[*]}]=-x # force usage by synerr
+ if [[ -n \$TMPDIR && -d \$TMPDIR/. ]]; then
+ args[\${#args[*]}]=-T
+ args[\${#args[*]}]=\$TMPDIR
+ fi
+ print Testing mksh for conformance:
+ fgrep -e MirOS: -e MIRBSD "\$sflag"
+ print "This shell is actually:\\n\\t\$KSH_VERSION"
+ print 'test.sh built for mksh $dstversion'
+ cstr='\$os = defined \$^O ? \$^O : "unknown";'
+ cstr="\$cstr"'print \$os . ", Perl version " . \$];'
+ for perli in \$PERL perl5 perl no; do
+ if [[ \$perli = no ]]; then
+ print Cannot find a working Perl interpreter, aborting.
+ exit 1
+ fi
+ print "Trying Perl interpreter '\$perli'..."
+ perlos=\$(\$perli -e "\$cstr")
+ rv=\$?
+ print "Errorlevel \$rv, running on '\$perlos'"
+ if (( rv )); then
+ print "=> not using"
+ continue
+ fi
+ if [[ -n \$perlos ]]; then
+ print "=> using it"
+ break
+ fi
+ done
+ (( Sflag )) || echo + \$perli "\${args[@]}" -s "\$sflag" "\$@"
+ (( Sflag )) || exec \$perli "\${args[@]}" -s "\$sflag" "\$@"$tsts
+ # use of the -S option for check.t split into multiple chunks
+ rv=0
+ for s in "\$sflag".*; do
+ echo + \$perli "\${args[@]}" -s "\$s" "\$@"
+ \$perli "\${args[@]}" -s "\$s" "\$@"$tsts
+ rc=\$?
+ (( rv = rv ? rv : rc ))
+ done
+ exit \$rv
+EOF
+chmod 755 test.sh
+case $cm in
+dragonegg)
+ emitbc="-S -flto"
+ ;;
+llvm)
+ emitbc="-emit-llvm -c"
+ ;;
+*)
+ emitbc=-c
+ ;;
+esac
+echo ": # work around NeXTstep bug" >Rebuild.sh
+for file in "$srcdir"/*.opt; do
+ echo "echo + Running genopt on '$file'..."
+ echo "(srcfile='$file'; BUILDSH_RUN_GENOPT=1; . '$srcdir/Build.sh')"
+done >>Rebuild.sh
+echo set -x >>Rebuild.sh
+for file in $SRCS; do
+ op=`echo x"$file" | sed 's/^x\(.*\)\.c$/\1./'`
+ test -f $file || file=$srcdir/$file
+ files="$files$sp$file"
+ sp=' '
+ echo "$CC $CFLAGS $CPPFLAGS $emitbc $file || exit 1" >>Rebuild.sh
+ if test $cm = dragonegg; then
+ echo "mv ${op}s ${op}ll" >>Rebuild.sh
+ echo "llvm-as ${op}ll || exit 1" >>Rebuild.sh
+ objs="$objs$sp${op}bc"
+ else
+ objs="$objs$sp${op}o"
+ fi
+done
+case $cm in
+dragonegg|llvm)
+ echo "rm -f $tfn.s" >>Rebuild.sh
+ echo "llvm-link -o - $objs | opt $optflags | llc -o $tfn.s" >>Rebuild.sh
+ lobjs=$tfn.s
+ ;;
+*)
+ lobjs=$objs
+ ;;
+esac
+echo tcfn=$mkshexe >>Rebuild.sh
+echo "$CC $CFLAGS $LDFLAGS -o \$tcfn $lobjs $LIBS $ccpr" >>Rebuild.sh
+echo "test -f \$tcfn || exit 1; $SIZE \$tcfn" >>Rebuild.sh
+if test $cm = makefile; then
+ extras='emacsfn.h rlimits.opt sh.h sh_flags.opt var_spec.h'
+ test 0 = $HAVE_SYS_SIGNAME && extras="$extras signames.inc"
+ gens= genq=
+ for file in "$srcdir"/*.opt; do
+ genf=`basename "$file" | sed 's/.opt$/.gen/'`
+ gens="$gens $genf"
+ genq="$genq$nl$genf: $srcdir/Build.sh $file
+ srcfile=$file; BUILDSH_RUN_GENOPT=1; . $srcdir/Build.sh"
+ done
+ cat >Makefrag.inc <<EOF
+# Makefile fragment for building mksh $dstversion
+
+PROG= $mkshexe
+MAN= mksh.1
+SRCS= $SRCS
+SRCS_FP= $files
+OBJS_BP= $objs
+INDSRCS= $extras
+NONSRCS_INST= dot.mkshrc \$(MAN)
+NONSRCS_NOINST= Build.sh Makefile Rebuild.sh check.pl check.t test.sh
+CC= $CC
+CFLAGS= $CFLAGS
+CPPFLAGS= $CPPFLAGS
+LDFLAGS= $LDFLAGS
+LIBS= $LIBS
+
+.depend \$(OBJS_BP):$gens$genq
+
+# not BSD make only:
+#VPATH= $srcdir
+#all: \$(PROG)
+#\$(PROG): \$(OBJS_BP)
+# \$(CC) \$(CFLAGS) \$(LDFLAGS) -o \$@ \$(OBJS_BP) \$(LIBS)
+#\$(OBJS_BP): \$(SRCS_FP) \$(NONSRCS)
+#.c.o:
+# \$(CC) \$(CFLAGS) \$(CPPFLAGS) -c \$<
+
+# for all make variants:
+#REGRESS_FLAGS= -f
+#regress:
+# ./test.sh \$(REGRESS_FLAGS)
+check_categories=$check_categories
+
+# for BSD make only:
+#.PATH: $srcdir
+#.include <bsd.prog.mk>
+EOF
+ $e
+ $e Generated Makefrag.inc successfully.
+ exit 0
+fi
+for file in "$srcdir"/*.opt; do
+ $e "+ Running genopt on '$file'..."
+ do_genopt "$file" || exit 1
+done
+if test $cm = combine; then
+ objs="-o $mkshexe"
+ for file in $SRCS; do
+ test -f $file || file=$srcdir/$file
+ objs="$objs $file"
+ done
+ emitbc="-fwhole-program --combine"
+ v "$CC $CFLAGS $CPPFLAGS $LDFLAGS $emitbc $objs $LIBS $ccpr"
+elif test 1 = $pm; then
+ for file in $SRCS; do
+ test -f $file || file=$srcdir/$file
+ v "$CC $CFLAGS $CPPFLAGS $emitbc $file" &
+ done
+ wait
+else
+ for file in $SRCS; do
+ test $cm = dragonegg && \
+ op=`echo x"$file" | sed 's/^x\(.*\)\.c$/\1./'`
+ test -f $file || file=$srcdir/$file
+ v "$CC $CFLAGS $CPPFLAGS $emitbc $file" || exit 1
+ if test $cm = dragonegg; then
+ v "mv ${op}s ${op}ll"
+ v "llvm-as ${op}ll" || exit 1
+ fi
+ done
+fi
+case $cm in
+dragonegg|llvm)
+ rmf $tfn.s
+ v "llvm-link -o - $objs | opt $optflags | llc -o $tfn.s"
+ ;;
+esac
+tcfn=$mkshexe
+test $cm = combine || v "$CC $CFLAGS $LDFLAGS -o $tcfn $lobjs $LIBS $ccpr"
+test -f $tcfn || exit 1
+test 1 = $r || v "$NROFF -mdoc <'$srcdir/mksh.1' >$tfn.cat1" || \
+ rmf $tfn.cat1
+test 0 = $eq && v $SIZE $tcfn
+i=install
+test -f /usr/ucb/$i && i=/usr/ucb/$i
+test 1 = $eq && e=:
+$e
+$e Installing the shell:
+$e "# $i -c -s -o root -g bin -m 555 $tfn /bin/$tfn"
+if test $legacy = 0; then
+ $e "# grep -x /bin/$tfn /etc/shells >/dev/null || echo /bin/$tfn >>/etc/shells"
+ $e "# $i -c -o root -g bin -m 444 dot.mkshrc /usr/share/doc/mksh/examples/"
+fi
+$e
+$e Installing the manual:
+if test -f $tfn.cat1; then
+ $e "# $i -c -o root -g bin -m 444 $tfn.cat1" \
+ "/usr/share/man/cat1/$tfn.0"
+ $e or
+fi
+$e "# $i -c -o root -g bin -m 444 $tfn.1 /usr/share/man/man1/$tfn.1"
+$e
+$e Run the regression test suite: ./test.sh
+$e Please also read the sample file dot.mkshrc and the fine manual.
+exit 0
+
+: <<'EOD'
+
+=== Environment used ===
+
+==== build environment ====
+AWK default: awk
+CC default: cc
+CFLAGS if empty, defaults to -xO2 or +O2
+ or -O3 -qstrict or -O2, per compiler
+CPPFLAGS default empty
+LDFLAGS default empty; added before sources
+LDSTATIC set this to '-static'; default unset
+LIBS default empty; added after sources
+ [Interix] default: -lcrypt (XXX still needed?)
+NOWARN -Wno-error or similar
+NROFF default: nroff
+TARGET_OS default: $(uname -s || uname)
+TARGET_OSREV [QNX] default: $(uname -r)
+
+==== feature selectors ====
+USE_PRINTF_BUILTIN 1 to include (unsupported) printf(1) as builtin
+===== general format =====
+HAVE_STRLEN ac_test
+HAVE_STRING_H ac_header
+HAVE_CAN_FSTACKPROTECTORALL ac_flags
+
+==== cpp definitions ====
+DEBUG dont use in production, wants gcc, implies:
+DEBUG_LEAKS enable freeing resources before exiting
+MKSHRC_PATH "~/.mkshrc" (do not change)
+MKSH_A4PB force use of arc4random_pushb
+MKSH_ASSUME_UTF8 (0=disabled, 1=enabled; default: unset)
+MKSH_BINSHPOSIX if */sh or */-sh, enable set -o posix
+MKSH_BINSHREDUCED if */sh or */-sh, enable set -o sh
+MKSH_CLRTOEOL_STRING "\033[K"
+MKSH_CLS_STRING "\033[;H\033[J"
+MKSH_CONSERVATIVE_FDS fd 0-9 for scripts, shell only up to 31
+MKSH_DEFAULT_EXECSHELL "/bin/sh" (do not change)
+MKSH_DEFAULT_PROFILEDIR "/etc" (do not change)
+MKSH_DEFAULT_TMPDIR "/tmp" (do not change)
+MKSH_DISABLE_DEPRECATED disable code paths scheduled for later removal
+MKSH_DISABLE_EXPERIMENTAL disable code not yet comfy for (LTS) snapshots
+MKSH_DISABLE_TTY_WARNING shut up warning about ctty if OS cant be fixed
+MKSH_DONT_EMIT_IDSTRING omit RCS IDs from binary
+MKSH_MIDNIGHTBSD01ASH_COMPAT set -o sh: additional compatibility quirk
+MKSH_NOPROSPECTOFWORK disable jobs, co-processes, etc. (do not use)
+MKSH_NOPWNAM skip PAM calls, for -static on eglibc, Solaris
+MKSH_NO_CMDLINE_EDITING disable command line editing code entirely
+MKSH_NO_DEPRECATED_WARNING omit warning when deprecated stuff is run
+MKSH_NO_EXTERNAL_CAT omit hack to skip cat builtin when flags passed
+MKSH_NO_LIMITS omit ulimit code
+MKSH_NO_SIGSETJMP define if sigsetjmp is broken or not available
+MKSH_NO_SIGSUSPEND use sigprocmask+pause instead of sigsuspend
+MKSH_SMALL omit some code, optimise hard for size (slower)
+MKSH_SMALL_BUT_FAST disable some hard-for-size optim. (modern sys.)
+MKSH_S_NOVI=1 disable Vi editing mode (default if MKSH_SMALL)
+MKSH_TYPEDEF_SIG_ATOMIC_T define to e.g. 'int' if sig_atomic_t is missing
+MKSH_TYPEDEF_SSIZE_T define to e.g. 'long' if your OS has no ssize_t
+MKSH_UNEMPLOYED disable job control (but not jobs/co-processes)
+
+=== generic installation instructions ===
+
+Set CC and possibly CFLAGS, CPPFLAGS, LDFLAGS, LIBS. If cross-compiling,
+also set TARGET_OS. To disable tests, set e.g. HAVE_STRLCPY=0; to enable
+them, set to a value other than 0 or 1. Ensure /bin/ed is installed. For
+MKSH_SMALL but with Vi mode, add -DMKSH_S_NOVI=0 to CPPFLAGS as well.
+
+Normally, the following command is what you want to run, then:
+$ (sh Build.sh -r -c lto && ./test.sh -f) 2>&1 | tee log
+
+Copy dot.mkshrc to /etc/skel/.mkshrc; install mksh into $prefix/bin; or
+/bin; install the manpage, if omitting the -r flag a catmanpage is made
+using $NROFF. Consider using a forward script as /etc/skel/.mkshrc like
+https://www.mirbsd.org/cvs.cgi/contrib/hosted/tg/deb/mksh/debian/.mkshrc?rev=HEAD
+and put dot.mkshrc as /etc/mkshrc so users need not keep up their HOME.
+
+EOD
Deleted: vendor/MirOS/mksh/R50/check.pl
===================================================================
--- vendor/MirOS/mksh/dist/check.pl 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/check.pl 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1307 +0,0 @@
-# $MirOS: src/bin/mksh/check.pl,v 1.32 2013/07/21 18:35:56 tg Exp $
-# $OpenBSD: th,v 1.16 2013/06/14 20:52:08 millert Exp $
-#-
-# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011,
-# 2012, 2013
-# Thorsten Glaser <tg at mirbsd.org>
-#
-# Provided that these terms and disclaimer and all copyright notices
-# are retained or reproduced in an accompanying document, permission
-# is granted to deal in this work without restriction, including un-
-# limited rights to use, publicly perform, distribute, sell, modify,
-# merge, give away, or sublicence.
-#
-# This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
-# the utmost extent permitted by applicable law, neither express nor
-# implied; without malicious intent or gross negligence. In no event
-# may a licensor, author or contributor be held liable for indirect,
-# direct, other damage, loss, or other issues arising in any way out
-# of dealing in the work, even if advised of the possibility of such
-# damage or existence of a defect, except proven that it results out
-# of said person's immediate fault when using the work as intended.
-#-
-# Example test:
-# name: a-test
-# description:
-# a test to show how tests are done
-# arguments: !-x!-f!
-# stdin:
-# echo -n *
-# false
-# expected-stdout: !
-# *
-# expected-stderr:
-# + echo -n *
-# + false
-# expected-exit: 1
-# ---
-# This runs the test-program (eg, mksh) with the arguments -x and -f,
-# standard input is a file containing "echo hi*\nfalse\n". The program
-# is expected to produce "hi*" (no trailing newline) on standard output,
-# "+ echo hi*\n+false\n" on standard error, and an exit code of 1.
-#
-#
-# Format of test files:
-# - blank lines and lines starting with # are ignored
-# - a test file contains a series of tests
-# - a test is a series of tag:value pairs ended with a "---" line
-# (leading/trailing spaces are stripped from the first line of value)
-# - test tags are:
-# Tag Flag Description
-# ----- ---- -----------
-# name r The name of the test; should be unique
-# description m What test does
-# arguments M Arguments to pass to the program;
-# default is no arguments.
-# script m Value is written to a file which
-# is passed as an argument to the program
-# (after the arguments arguments)
-# stdin m Value is written to a file which is
-# used as standard-input for the program;
-# default is to use /dev/null.
-# perl-setup m Value is a perl script which is executed
-# just before the test is run. Try to
-# avoid using this...
-# perl-cleanup m Value is a perl script which is executed
-# just after the test is run. Try to
-# avoid using this...
-# env-setup M Value is a list of NAME=VALUE elements
-# which are put in the environment before
-# the test is run. If the =VALUE is
-# missing, NAME is removed from the
-# environment. Programs are run with
-# the following minimal environment:
-# HOME, LD_LIBRARY_PATH, LOCPATH,
-# LOGNAME, PATH, SHELL, UNIXMODE,
-# USER
-# (values taken from the environment of
-# the test harness).
-# CYGWIN is set to nodosfilewarning.
-# ENV is set to /nonexistant.
-# __progname is set to the -p argument.
-# __perlname is set to $^X (perlexe).
-# file-setup mps Used to create files, directories
-# and symlinks. First word is either
-# file, dir or symlink; second word is
-# permissions; this is followed by a
-# quoted word that is the name of the
-# file; the end-quote should be followed
-# by a newline, then the file data
-# (if any). The first word may be
-# preceded by a ! to strip the trailing
-# newline in a symlink.
-# file-result mps Used to verify a file, symlink or
-# directory is created correctly.
-# The first word is either
-# file, dir or symlink; second word is
-# expected permissions; third word
-# is user-id; fourth is group-id;
-# fifth is "exact" or "pattern"
-# indicating whether the file contents
-# which follow is to be matched exactly
-# or if it is a regular expression.
-# The fifth argument is the quoted name
-# of the file that should be created.
-# The end-quote should be followed
-# by a newline, then the file data
-# (if any). The first word may be
-# preceded by a ! to strip the trailing
-# newline in the file contents.
-# The permissions, user and group fields
-# may be * meaning accept any value.
-# time-limit Time limit - the program is sent a
-# SIGKILL N seconds. Default is no
-# limit.
-# expected-fail 'yes' if the test is expected to fail.
-# expected-exit expected exit code. Can be a number,
-# or a C expression using the variables
-# e, s and w (exit code, termination
-# signal, and status code).
-# expected-stdout m What the test should generate on stdout;
-# default is to expect no output.
-# expected-stdout-pattern m A perl pattern which matches the
-# expected output.
-# expected-stderr m What the test should generate on stderr;
-# default is to expect no output.
-# expected-stderr-pattern m A perl pattern which matches the
-# expected standard error.
-# category m Specify a comma separated list of
-# 'categories' of program that the test
-# is to be run for. A category can be
-# negated by prefixing the name with a !.
-# The idea is that some tests in a
-# test suite may apply to a particular
-# program version and shouldn't be run
-# on other versions. The category(s) of
-# the program being tested can be
-# specified on the command line.
-# One category os:XXX is predefined
-# (XXX is the operating system name,
-# eg, linux, dec_osf).
-# need-ctty 'yes' if the test needs a ctty, run
-# with -C regress:no-ctty to disable.
-# Flag meanings:
-# r tag is required (eg, a test must have a name tag).
-# m value can be multiple lines. Lines must be prefixed with
-# a tab. If the value part of the initial tag:value line is
-# - empty: the initial blank line is stripped.
-# - a lone !: the last newline in the value is stripped;
-# M value can be multiple lines (prefixed by a tab) and consists
-# of multiple fields, delimited by a field separator character.
-# The value must start and end with the f-s-c.
-# p tag takes parameters (used with m).
-# s tag can be used several times.
-
-# pull EINTR from POSIX.pm or Errno.pm if they exist
-# otherwise just skip it
-BEGIN {
- $EINTR = 0;
- eval {
- require POSIX;
- $EINTR = POSIX::EINTR();
- };
- if ($@) {
- eval {
- require Errno;
- $EINTR = Errno::EINTR();
- } or do {
- $EINTR = 0;
- };
- }
-};
-
-use Getopt::Std;
-use Config;
-use File::Temp qw/ :mktemp /;
-
-$os = defined $^O ? $^O : 'unknown';
-
-($prog = $0) =~ s#.*/##;
-
-$Usage = <<EOF ;
-Usage: $prog [-Pv] [-C cat] [-e e=v] [-p prog] [-s fn] [-T dir] \
- [-t tmo] name ...
- -C c Specify the comma separated list of categories the program
- belongs to (see category field).
- -e e=v Set the environment variable e to v for all tests
- (if no =v is given, the current value is used)
- Only one -e option can be given at the moment, sadly.
- -P program (-p) string has multiple words, and the program is in
- the path (kludge option)
- -p p Use p as the program to test
- -s s Read tests from file s; if s is a directory, it is recursively
- scaned for test files (which end in .t).
- -T dir Use dir instead of /tmp to hold temporary files
- -t t Use t as default time limit for tests (default is unlimited)
- -v Verbose mode: print reason test failed.
- name specifies the name of the test(s) to run; if none are
- specified, all tests are run.
-EOF
-
-# See comment above for flag meanings
-%test_fields = (
- 'name', 'r',
- 'description', 'm',
- 'arguments', 'M',
- 'script', 'm',
- 'stdin', 'm',
- 'perl-setup', 'm',
- 'perl-cleanup', 'm',
- 'env-setup', 'M',
- 'file-setup', 'mps',
- 'file-result', 'mps',
- 'time-limit', '',
- 'expected-fail', '',
- 'expected-exit', '',
- 'expected-stdout', 'm',
- 'expected-stdout-pattern', 'm',
- 'expected-stderr', 'm',
- 'expected-stderr-pattern', 'm',
- 'category', 'm',
- 'need-ctty', '',
- 'need-pass', '',
- );
-# Filled in by read_test()
-%internal_test_fields = (
- ':full-name', 1, # file:name
- ':long-name', 1, # dir/file:lineno:name
- );
-
-# Categories of the program under test. Provide the current
-# os by default.
-%categories = (
- "os:$os", '1'
- );
-
-$nfailed = 0;
-$nifailed = 0;
-$nxfailed = 0;
-$npassed = 0;
-$nxpassed = 0;
-
-%known_tests = ();
-
-if (!getopts('C:e:Pp:s:T:t:v')) {
- print STDERR $Usage;
- exit 1;
-}
-
-die "$prog: no program specified (use -p)\n" if !defined $opt_p;
-die "$prog: no test set specified (use -s)\n" if !defined $opt_s;
-$test_prog = $opt_p;
-$verbose = defined $opt_v && $opt_v;
-$test_set = $opt_s;
-$temp_dir = $opt_T || "/tmp";
-if (defined $opt_t) {
- die "$prog: bad -t argument (should be number > 0): $opt_t\n"
- if $opt_t !~ /^\d+$/ || $opt_t <= 0;
- $default_time_limit = $opt_t;
-}
-$program_kludge = defined $opt_P ? $opt_P : 0;
-
-if (defined $opt_C) {
- foreach $c (split(',', $opt_C)) {
- $c =~ s/\s+//;
- die "$prog: categories can't be negated on the command line\n"
- if ($c =~ /^!/);
- $categories{$c} = 1;
- }
-}
-
-# Note which tests are to be run.
-%do_test = ();
-grep($do_test{$_} = 1, @ARGV);
-$all_tests = @ARGV == 0;
-
-# Set up a very minimal environment
-%new_env = ();
-foreach $env (('HOME', 'LD_LIBRARY_PATH', 'LOCPATH', 'LOGNAME',
- 'PATH', 'SHELL', 'UNIXMODE', 'USER')) {
- $new_env{$env} = $ENV{$env} if defined $ENV{$env};
-}
-$new_env{'CYGWIN'} = 'nodosfilewarning';
-$new_env{'ENV'} = '/nonexistant';
-if (($os eq 'VMS') || ($Config{perlpath} =~ m/$Config{_exe}$/i)) {
- $new_env{'__perlname'} = $Config{perlpath};
-} else {
- $new_env{'__perlname'} = $Config{perlpath} . $Config{_exe};
-}
-if (defined $opt_e) {
- # XXX need a way to allow many -e arguments...
- if ($opt_e =~ /^([a-zA-Z_]\w*)(|=(.*))$/) {
- $new_env{$1} = $2 eq '' ? $ENV{$1} : $3;
- } else {
- die "$0: bad -e argument: $opt_e\n";
- }
-}
-%old_env = %ENV;
-
-chop($pwd = `pwd 2>/dev/null`);
-die "$prog: couldn't get current working directory\n" if $pwd eq '';
-die "$prog: couldn't cd to $pwd - $!\n" if !chdir($pwd);
-
-if (!$program_kludge) {
- $test_prog = "$pwd/$test_prog" if substr($test_prog, 0, 1) ne '/';
- die "$prog: $test_prog is not executable - bye\n"
- if (! -x $test_prog && $os ne 'os2');
-}
-
- at trap_sigs = ('TERM', 'QUIT', 'INT', 'PIPE', 'HUP');
- at SIG{@trap_sigs} = ('cleanup_exit') x @trap_sigs;
-$child_kill_ok = 0;
-$SIG{'ALRM'} = 'catch_sigalrm';
-
-$| = 1;
-
-# Create temp files
-($fh, $temps) = mkstemp("${temp_dir}/rts.XXXXXXXX");
-close($fh);
-($fh, $tempi) = mkstemp("${temp_dir}/rti.XXXXXXXX");
-close($fh);
-($fh, $tempo) = mkstemp("${temp_dir}/rto.XXXXXXXX");
-close($fh);
-($fh, $tempe) = mkstemp("${temp_dir}/rte.XXXXXXXX");
-close($fh);
-$tempdir = mkdtemp("${temp_dir}/rtd.XXXXXXXX");
-
-if (-d $test_set) {
- $file_prefix_skip = length($test_set) + 1;
- $ret = &process_test_dir($test_set);
-} else {
- $file_prefix_skip = 0;
- $ret = &process_test_file($test_set);
-}
-&cleanup_exit() if !defined $ret;
-
-$tot_failed = $nfailed + $nifailed + $nxfailed;
-$tot_passed = $npassed + $nxpassed;
-if ($tot_failed || $tot_passed) {
- print "Total failed: $tot_failed";
- print " ($nifailed ignored)" if $nifailed;
- print " ($nxfailed unexpected)" if $nxfailed;
- print " (as expected)" if $nfailed && !$nxfailed && !$nifailed;
- print "\nTotal passed: $tot_passed";
- print " ($nxpassed unexpected)" if $nxpassed;
- print "\n";
-}
-
-&cleanup_exit('ok');
-
-sub
-cleanup_exit
-{
- local($sig, $exitcode) = ('', 1);
-
- if ($_[0] eq 'ok') {
- unless ($nxfailed) {
- $exitcode = 0;
- } else {
- $exitcode = 1;
- }
- } elsif ($_[0] ne '') {
- $sig = $_[0];
- }
-
- unlink($tempi, $tempo, $tempe, $temps);
- &scrub_dir($tempdir) if defined $tempdir;
- rmdir($tempdir) if defined $tempdir;
-
- if ($sig) {
- $SIG{$sig} = 'DEFAULT';
- kill $sig, $$;
- return;
- }
- exit $exitcode;
-}
-
-sub
-catch_sigalrm
-{
- $SIG{'ALRM'} = 'catch_sigalrm';
- kill(9, $child_pid) if $child_kill_ok;
- $child_killed = 1;
-}
-
-sub
-process_test_dir
-{
- local($dir) = @_;
- local($ret, $file);
- local(@todo) = ();
-
- if (!opendir(DIR, $dir)) {
- print STDERR "$prog: can't open directory $dir - $!\n";
- return undef;
- }
- while (defined ($file = readdir(DIR))) {
- push(@todo, $file) if $file =~ /^[^.].*\.t$/;
- }
- closedir(DIR);
-
- foreach $file (@todo) {
- $file = "$dir/$file";
- if (-d $file) {
- $ret = &process_test_dir($file);
- } elsif (-f _) {
- $ret = &process_test_file($file);
- }
- last if !defined $ret;
- }
-
- return $ret;
-}
-
-sub
-process_test_file
-{
- local($file) = @_;
- local($ret);
-
- if (!open(IN, $file)) {
- print STDERR "$prog: can't open $file - $!\n";
- return undef;
- }
- binmode(IN);
- while (1) {
- $ret = &read_test($file, IN, *test);
- last if !defined $ret || !$ret;
- next if !$all_tests && !$do_test{$test{'name'}};
- next if !&category_check(*test);
- $ret = &run_test(*test);
- last if !defined $ret;
- }
- close(IN);
-
- return $ret;
-}
-
-sub
-run_test
-{
- local(*test) = @_;
- local($name) = $test{':full-name'};
-
- return undef if !&scrub_dir($tempdir);
-
- if (defined $test{'stdin'}) {
- return undef if !&write_file($tempi, $test{'stdin'});
- $ifile = $tempi;
- } else {
- $ifile = '/dev/null';
- }
-
- if (defined $test{'script'}) {
- return undef if !&write_file($temps, $test{'script'});
- }
-
- if (!chdir($tempdir)) {
- print STDERR "$prog: couldn't cd to $tempdir - $!\n";
- return undef;
- }
-
- if (defined $test{'file-setup'}) {
- local($i);
- local($type, $perm, $rest, $c, $len, $name);
-
- for ($i = 0; $i < $test{'file-setup'}; $i++) {
- $val = $test{"file-setup:$i"};
-
- # format is: type perm "name"
- ($type, $perm, $rest) =
- split(' ', $val, 3);
- $c = substr($rest, 0, 1);
- $len = index($rest, $c, 1) - 1;
- $name = substr($rest, 1, $len);
- $rest = substr($rest, 2 + $len);
- $perm = oct($perm) if $perm =~ /^\d+$/;
- if ($type eq 'file') {
- return undef if !&write_file($name, $rest);
- if (!chmod($perm, $name)) {
- print STDERR
- "$prog:$test{':long-name'}: can't chmod $perm $name - $!\n";
- return undef;
- }
- } elsif ($type eq 'dir') {
- if (!mkdir($name, $perm)) {
- print STDERR
- "$prog:$test{':long-name'}: can't mkdir $perm $name - $!\n";
- return undef;
- }
- } elsif ($type eq 'symlink') {
- local($oumask) = umask($perm);
- local($ret) = symlink($rest, $name);
- umask($oumask);
- if (!$ret) {
- print STDERR
- "$prog:$test{':long-name'}: couldn't create symlink $name - $!\n";
- return undef;
- }
- }
- }
- }
-
- if (defined $test{'perl-setup'}) {
- eval $test{'perl-setup'};
- if ($@ ne '') {
- print STDERR "$prog:$test{':long-name'}: error running perl-setup - $@\n";
- return undef;
- }
- }
-
- $pid = fork;
- if (!defined $pid) {
- print STDERR "$prog: can't fork - $!\n";
- return undef;
- }
- if (!$pid) {
- @SIG{@trap_sigs} = ('DEFAULT') x @trap_sigs;
- $SIG{'ALRM'} = 'DEFAULT';
- if (defined $test{'env-setup'}) {
- local($var, $val, $i);
-
- foreach $var (split(substr($test{'env-setup'}, 0, 1),
- $test{'env-setup'}))
- {
- $i = index($var, '=');
- next if $i == 0 || $var eq '';
- if ($i < 0) {
- delete $new_env{$var};
- } else {
- $new_env{substr($var, 0, $i)} = substr($var, $i + 1);
- }
- }
- }
- if (!open(STDIN, "< $ifile")) {
- print STDERR "$prog: couldn't open $ifile in child - $!\n";
- kill('TERM', $$);
- }
- binmode(STDIN);
- if (!open(STDOUT, "> $tempo")) {
- print STDERR "$prog: couldn't open $tempo in child - $!\n";
- kill('TERM', $$);
- }
- binmode(STDOUT);
- if (!open(STDERR, "> $tempe")) {
- print STDOUT "$prog: couldn't open $tempe in child - $!\n";
- kill('TERM', $$);
- }
- binmode(STDERR);
- if ($program_kludge) {
- @argv = split(' ', $test_prog);
- } else {
- @argv = ($test_prog);
- }
- if (defined $test{'arguments'}) {
- push(@argv,
- split(substr($test{'arguments'}, 0, 1),
- substr($test{'arguments'}, 1)));
- }
- push(@argv, $temps) if defined $test{'script'};
-
- #XXX realpathise, use which/whence -p, or sth. like that
- #XXX if !$program_kludge, we get by with not doing it for now tho
- $new_env{'__progname'} = $argv[0];
-
- # The following doesn't work with perl5... Need to do it explicitly - yuck.
- #%ENV = %new_env;
- foreach $k (keys(%ENV)) {
- delete $ENV{$k};
- }
- $ENV{$k} = $v while ($k,$v) = each %new_env;
-
- exec { $argv[0] } @argv;
- print STDERR "$prog: couldn't execute $test_prog - $!\n";
- kill('TERM', $$);
- exit(95);
- }
- $child_pid = $pid;
- $child_killed = 0;
- $child_kill_ok = 1;
- alarm($test{'time-limit'}) if defined $test{'time-limit'};
- while (1) {
- $xpid = waitpid($pid, 0);
- $child_kill_ok = 0;
- if ($xpid < 0) {
- if ($EINTR) {
- next if $! == $EINTR;
- }
- print STDERR "$prog: error waiting for child - $!\n";
- return undef;
- }
- last;
- }
- $status = $?;
- alarm(0) if defined $test{'time-limit'};
-
- $failed = 0;
- $why = '';
-
- if ($child_killed) {
- $failed = 1;
- $why .= "\ttest timed out (limit of $test{'time-limit'} seconds)\n";
- }
-
- $ret = &eval_exit($test{'long-name'}, $status, $test{'expected-exit'});
- return undef if !defined $ret;
- if (!$ret) {
- local($expl);
-
- $failed = 1;
- if (($status & 0xff) == 0x7f) {
- $expl = "stopped";
- } elsif (($status & 0xff)) {
- $expl = "signal " . ($status & 0x7f);
- } else {
- $expl = "exit-code " . (($status >> 8) & 0xff);
- }
- $why .=
- "\tunexpected exit status $status ($expl), expected $test{'expected-exit'}\n";
- }
-
- $tmp = &check_output($test{'long-name'}, $tempo, 'stdout',
- $test{'expected-stdout'}, $test{'expected-stdout-pattern'});
- return undef if !defined $tmp;
- if ($tmp ne '') {
- $failed = 1;
- $why .= $tmp;
- }
-
- $tmp = &check_output($test{'long-name'}, $tempe, 'stderr',
- $test{'expected-stderr'}, $test{'expected-stderr-pattern'});
- return undef if !defined $tmp;
- if ($tmp ne '') {
- $failed = 1;
- $why .= $tmp;
- }
-
- $tmp = &check_file_result(*test);
- return undef if !defined $tmp;
- if ($tmp ne '') {
- $failed = 1;
- $why .= $tmp;
- }
-
- if (defined $test{'perl-cleanup'}) {
- eval $test{'perl-cleanup'};
- if ($@ ne '') {
- print STDERR "$prog:$test{':long-name'}: error running perl-cleanup - $@\n";
- return undef;
- }
- }
-
- if (!chdir($pwd)) {
- print STDERR "$prog: couldn't cd to $pwd - $!\n";
- return undef;
- }
-
- if ($failed) {
- if (!$test{'expected-fail'}) {
- if ($test{'need-pass'}) {
- print "FAIL $name\n";
- $nxfailed++;
- } else {
- print "FAIL $name (ignored)\n";
- $nifailed++;
- }
- } else {
- print "fail $name (as expected)\n";
- $nfailed++;
- }
- $why = "\tDescription"
- . &wrap_lines($test{'description'}, " (missing)\n")
- . $why;
- } elsif ($test{'expected-fail'}) {
- print "PASS $name (unexpectedly)\n";
- $nxpassed++;
- } else {
- print "pass $name\n";
- $npassed++;
- }
- print $why if $verbose;
- return 0;
-}
-
-sub
-category_check
-{
- local(*test) = @_;
- local($c);
-
- return 0 if ($test{'need-ctty'} && defined $categories{'regress:no-ctty'});
- return 1 if (!defined $test{'category'});
- local($ok) = 0;
- foreach $c (split(',', $test{'category'})) {
- $c =~ s/\s+//;
- if ($c =~ /^!/) {
- $c = $';
- return 0 if (defined $categories{$c});
- $ok = 1;
- } else {
- $ok = 1 if (defined $categories{$c});
- }
- }
- return $ok;
-}
-
-sub
-scrub_dir
-{
- local($dir) = @_;
- local(@todo) = ();
- local($file);
-
- if (!opendir(DIR, $dir)) {
- print STDERR "$prog: couldn't open directory $dir - $!\n";
- return undef;
- }
- while (defined ($file = readdir(DIR))) {
- push(@todo, $file) if $file ne '.' && $file ne '..';
- }
- closedir(DIR);
- foreach $file (@todo) {
- $file = "$dir/$file";
- if (-d $file) {
- return undef if !&scrub_dir($file);
- if (!rmdir($file)) {
- print STDERR "$prog: couldn't rmdir $file - $!\n";
- return undef;
- }
- } else {
- if (!unlink($file)) {
- print STDERR "$prog: couldn't unlink $file - $!\n";
- return undef;
- }
- }
- }
- return 1;
-}
-
-sub
-write_file
-{
- local($file, $str) = @_;
-
- if (!open(TEMP, "> $file")) {
- print STDERR "$prog: can't open $file - $!\n";
- return undef;
- }
- binmode(TEMP);
- print TEMP $str;
- if (!close(TEMP)) {
- print STDERR "$prog: error writing $file - $!\n";
- return undef;
- }
- return 1;
-}
-
-sub
-check_output
-{
- local($name, $file, $what, $expect, $expect_pat) = @_;
- local($got) = '';
- local($why) = '';
- local($ret);
-
- if (!open(TEMP, "< $file")) {
- print STDERR "$prog:$name($what): couldn't open $file after running program - $!\n";
- return undef;
- }
- binmode(TEMP);
- while (<TEMP>) {
- $got .= $_;
- }
- close(TEMP);
- return compare_output($name, $what, $expect, $expect_pat, $got);
-}
-
-sub
-compare_output
-{
- local($name, $what, $expect, $expect_pat, $got) = @_;
- local($why) = '';
-
- if (defined $expect_pat) {
- $_ = $got;
- $ret = eval "$expect_pat";
- if ($@ ne '') {
- print STDERR "$prog:$name($what): error evaluating $what pattern: $expect_pat - $@\n";
- return undef;
- }
- if (!$ret) {
- $why = "\tunexpected $what - wanted pattern";
- $why .= &wrap_lines($expect_pat);
- $why .= "\tgot";
- $why .= &wrap_lines($got);
- }
- } else {
- $expect = '' if !defined $expect;
- if ($got ne $expect) {
- $why .= "\tunexpected $what - " . &first_diff($expect, $got) . "\n";
- $why .= "\twanted";
- $why .= &wrap_lines($expect);
- $why .= "\tgot";
- $why .= &wrap_lines($got);
- }
- }
- return $why;
-}
-
-sub
-wrap_lines
-{
- local($str, $empty) = @_;
- local($nonl) = substr($str, -1, 1) ne "\n";
-
- return (defined $empty ? $empty : " nothing\n") if $str eq '';
- substr($str, 0, 0) = ":\n";
- $str =~ s/\n/\n\t\t/g;
- if ($nonl) {
- $str .= "\n\t[incomplete last line]\n";
- } else {
- chop($str);
- chop($str);
- }
- return $str;
-}
-
-sub
-first_diff
-{
- local($exp, $got) = @_;
- local($lineno, $char) = (1, 1);
- local($i, $exp_len, $got_len);
- local($ce, $cg);
-
- $exp_len = length($exp);
- $got_len = length($got);
- if ($exp_len != $got_len) {
- if ($exp_len < $got_len) {
- if (substr($got, 0, $exp_len) eq $exp) {
- return "got too much output";
- }
- } elsif (substr($exp, 0, $got_len) eq $got) {
- return "got too little output";
- }
- }
- for ($i = 0; $i < $exp_len; $i++) {
- $ce = substr($exp, $i, 1);
- $cg = substr($got, $i, 1);
- last if $ce ne $cg;
- $char++;
- if ($ce eq "\n") {
- $lineno++;
- $char = 1;
- }
- }
- return "first difference: line $lineno, char $char (wanted '"
- . &format_char($ce) . "', got '"
- . &format_char($cg) . "'";
-}
-
-sub
-format_char
-{
- local($ch, $s);
-
- $ch = ord($_[0]);
- if ($ch == 10) {
- return '\n';
- } elsif ($ch == 13) {
- return '\r';
- } elsif ($ch == 8) {
- return '\b';
- } elsif ($ch == 9) {
- return '\t';
- } elsif ($ch > 127) {
- $ch -= 127;
- $s = "M-";
- } else {
- $s = '';
- }
- if ($ch < 32) {
- $s .= '^';
- $ch += ord('@');
- } elsif ($ch == 127) {
- return $s . "^?";
- }
- return $s . sprintf("%c", $ch);
-}
-
-sub
-eval_exit
-{
- local($name, $status, $expect) = @_;
- local($expr);
- local($w, $e, $s) = ($status, ($status >> 8) & 0xff, $status & 0x7f);
-
- $e = -1000 if $status & 0xff;
- $s = -1000 if $s == 0x7f;
- if (!defined $expect) {
- $expr = '$w == 0';
- } elsif ($expect =~ /^(|-)\d+$/) {
- $expr = "\$e == $expect";
- } else {
- $expr = $expect;
- $expr =~ s/\b([wse])\b/\$$1/g;
- $expr =~ s/\b(SIG[A-Z0-9]+)\b/&$1/g;
- }
- $w = eval $expr;
- if ($@ ne '') {
- print STDERR "$prog:$test{':long-name'}: bad expected-exit expression: $expect ($@)\n";
- return undef;
- }
- return $w;
-}
-
-sub
-read_test
-{
- local($file, $in, *test) = @_;
- local($field, $val, $flags, $do_chop, $need_redo, $start_lineno);
- local(%cnt, $sfield);
-
- %test = ();
- %cnt = ();
- while (<$in>) {
- next if /^\s*$/;
- next if /^ *#/;
- last if /^\s*---\s*$/;
- $start_lineno = $. if !defined $start_lineno;
- if (!/^([-\w]+):\s*(|\S|\S.*\S)\s*$/) {
- print STDERR "$prog:$file:$.: unrecognised line\n";
- return undef;
- }
- ($field, $val) = ($1, $2);
- $sfield = $field;
- $flags = $test_fields{$field};
- if (!defined $flags) {
- print STDERR "$prog:$file:$.: unrecognised field \"$field\"\n";
- return undef;
- }
- if ($flags =~ /s/) {
- local($cnt) = $cnt{$field}++;
- $test{$field} = $cnt{$field};
- $cnt = 0 if $cnt eq '';
- $sfield .= ":$cnt";
- } elsif (defined $test{$field}) {
- print STDERR "$prog:$file:$.: multiple \"$field\" fields\n";
- return undef;
- }
- $do_chop = $flags !~ /m/;
- $need_redo = 0;
- if ($val eq '' || $val eq '!' || $flags =~ /p/) {
- if ($flags =~ /[Mm]/) {
- if ($flags =~ /p/) {
- if ($val =~ /^!/) {
- $do_chop = 1;
- $val = $';
- } else {
- $do_chop = 0;
- }
- if ($val eq '') {
- print STDERR
- "$prog:$file:$.: no parameters given for field \"$field\"\n";
- return undef;
- }
- } else {
- if ($val eq '!') {
- $do_chop = 1;
- }
- $val = '';
- }
- while (<$in>) {
- last if !/^\t/;
- $val .= $';
- }
- chop $val if $do_chop;
- $do_chop = 1;
- $need_redo = 1;
-
- # Syntax check on fields that can several instances
- # (can give useful line numbers this way)
-
- if ($field eq 'file-setup') {
- local($type, $perm, $rest, $c, $len, $name);
-
- # format is: type perm "name"
- if ($val !~ /^[ \t]*(\S+)[ \t]+(\S+)[ \t]+([^ \t].*)/) {
- print STDERR
- "$prog:$file:$.: bad parameter line for file-setup field\n";
- return undef;
- }
- ($type, $perm, $rest) = ($1, $2, $3);
- if ($type !~ /^(file|dir|symlink)$/) {
- print STDERR
- "$prog:$file:$.: bad file type for file-setup: $type\n";
- return undef;
- }
- if ($perm !~ /^\d+$/) {
- print STDERR
- "$prog:$file:$.: bad permissions for file-setup: $type\n";
- return undef;
- }
- $c = substr($rest, 0, 1);
- if (($len = index($rest, $c, 1) - 1) <= 0) {
- print STDERR
- "$prog:$file:$.: missing end quote for file name in file-setup: $rest\n";
- return undef;
- }
- $name = substr($rest, 1, $len);
- if ($name =~ /^\// || $name =~ /(^|\/)\.\.(\/|$)/) {
- # Note: this is not a security thing - just a sanity
- # check - a test can still use symlinks to get at files
- # outside the test directory.
- print STDERR
-"$prog:$file:$.: file name in file-setup is absolute or contains ..: $name\n";
- return undef;
- }
- }
- if ($field eq 'file-result') {
- local($type, $perm, $uid, $gid, $matchType,
- $rest, $c, $len, $name);
-
- # format is: type perm uid gid matchType "name"
- if ($val !~ /^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S.*)/) {
- print STDERR
- "$prog:$file:$.: bad parameter line for file-result field\n";
- return undef;
- }
- ($type, $perm, $uid, $gid, $matchType, $rest)
- = ($1, $2, $3, $4, $5, $6);
- if ($type !~ /^(file|dir|symlink)$/) {
- print STDERR
- "$prog:$file:$.: bad file type for file-result: $type\n";
- return undef;
- }
- if ($perm !~ /^\d+$/ && $perm ne '*') {
- print STDERR
- "$prog:$file:$.: bad permissions for file-result: $perm\n";
- return undef;
- }
- if ($uid !~ /^\d+$/ && $uid ne '*') {
- print STDERR
- "$prog:$file:$.: bad user-id for file-result: $uid\n";
- return undef;
- }
- if ($gid !~ /^\d+$/ && $gid ne '*') {
- print STDERR
- "$prog:$file:$.: bad group-id for file-result: $gid\n";
- return undef;
- }
- if ($matchType !~ /^(exact|pattern)$/) {
- print STDERR
- "$prog:$file:$.: bad match type for file-result: $matchType\n";
- return undef;
- }
- $c = substr($rest, 0, 1);
- if (($len = index($rest, $c, 1) - 1) <= 0) {
- print STDERR
- "$prog:$file:$.: missing end quote for file name in file-result: $rest\n";
- return undef;
- }
- $name = substr($rest, 1, $len);
- if ($name =~ /^\// || $name =~ /(^|\/)\.\.(\/|$)/) {
- # Note: this is not a security thing - just a sanity
- # check - a test can still use symlinks to get at files
- # outside the test directory.
- print STDERR
-"$prog:$file:$.: file name in file-result is absolute or contains ..: $name\n";
- return undef;
- }
- }
- } elsif ($val eq '') {
- print STDERR
- "$prog:$file:$.: no value given for field \"$field\"\n";
- return undef;
- }
- }
- $val .= "\n" if !$do_chop;
- $test{$sfield} = $val;
- redo if $need_redo;
- }
- if ($_ eq '') {
- if (%test) {
- print STDERR
- "$prog:$file:$start_lineno: end-of-file while reading test\n";
- return undef;
- }
- return 0;
- }
-
- while (($field, $val) = each %test_fields) {
- if ($val =~ /r/ && !defined $test{$field}) {
- print STDERR
- "$prog:$file:$start_lineno: required field \"$field\" missing\n";
- return undef;
- }
- }
-
- $test{':full-name'} = substr($file, $file_prefix_skip) . ":$test{'name'}";
- $test{':long-name'} = "$file:$start_lineno:$test{'name'}";
-
- # Syntax check on specific fields
- if (defined $test{'expected-fail'}) {
- if ($test{'expected-fail'} !~ /^(yes|no)$/) {
- print STDERR
- "$prog:$test{':long-name'}: bad value for expected-fail field\n";
- return undef;
- }
- $test{'expected-fail'} = $1 eq 'yes';
- } else {
- $test{'expected-fail'} = 0;
- }
- if (defined $test{'need-ctty'}) {
- if ($test{'need-ctty'} !~ /^(yes|no)$/) {
- print STDERR
- "$prog:$test{':long-name'}: bad value for need-ctty field\n";
- return undef;
- }
- $test{'need-ctty'} = $1 eq 'yes';
- } else {
- $test{'need-ctty'} = 0;
- }
- if (defined $test{'need-pass'}) {
- if ($test{'need-pass'} !~ /^(yes|no)$/) {
- print STDERR
- "$prog:$test{':long-name'}: bad value for need-pass field\n";
- return undef;
- }
- $test{'need-pass'} = $1 eq 'yes';
- } else {
- $test{'need-pass'} = 1;
- }
- if (defined $test{'arguments'}) {
- local($firstc) = substr($test{'arguments'}, 0, 1);
-
- if (substr($test{'arguments'}, -1, 1) ne $firstc) {
- print STDERR "$prog:$test{':long-name'}: arguments field doesn't start and end with the same character\n";
- return undef;
- }
- }
- if (defined $test{'env-setup'}) {
- local($firstc) = substr($test{'env-setup'}, 0, 1);
-
- if (substr($test{'env-setup'}, -1, 1) ne $firstc) {
- print STDERR "$prog:$test{':long-name'}: env-setup field doesn't start and end with the same character\n";
- return undef;
- }
- }
- if (defined $test{'expected-exit'}) {
- local($val) = $test{'expected-exit'};
-
- if ($val =~ /^(|-)\d+$/) {
- if ($val < 0 || $val > 255) {
- print STDERR "$prog:$test{':long-name'}: expected-exit value $val not in 0..255\n";
- return undef;
- }
- } elsif ($val !~ /^([\s<>+-=*%\/&|!()]|\b[wse]\b|\bSIG[A-Z0-9]+\b)+$/) {
- print STDERR "$prog:$test{':long-name'}: bad expected-exit expression: $val\n";
- return undef;
- }
- } else {
- $test{'expected-exit'} = 0;
- }
- if (defined $test{'expected-stdout'}
- && defined $test{'expected-stdout-pattern'})
- {
- print STDERR "$prog:$test{':long-name'}: can't use both expected-stdout and expected-stdout-pattern\n";
- return undef;
- }
- if (defined $test{'expected-stderr'}
- && defined $test{'expected-stderr-pattern'})
- {
- print STDERR "$prog:$test{':long-name'}: can't use both expected-stderr and expected-stderr-pattern\n";
- return undef;
- }
- if (defined $test{'time-limit'}) {
- if ($test{'time-limit'} !~ /^\d+$/ || $test{'time-limit'} == 0) {
- print STDERR
- "$prog:$test{':long-name'}: bad value for time-limit field\n";
- return undef;
- }
- } elsif (defined $default_time_limit) {
- $test{'time-limit'} = $default_time_limit;
- }
-
- if (defined $known_tests{$test{'name'}}) {
- print STDERR "$prog:$test{':long-name'}: warning: duplicate test name ${test{'name'}}\n";
- }
- $known_tests{$test{'name'}} = 1;
-
- return 1;
-}
-
-sub
-tty_msg
-{
- local($msg) = @_;
-
- open(TTY, "> /dev/tty") || return 0;
- print TTY $msg;
- close(TTY);
- return 1;
-}
-
-sub
-never_called_funcs
-{
- return 0;
- &tty_msg("hi\n");
- &never_called_funcs();
- &catch_sigalrm();
- $old_env{'foo'} = 'bar';
- $internal_test_fields{'foo'} = 'bar';
-}
-
-sub
-check_file_result
-{
- local(*test) = @_;
-
- return '' if (!defined $test{'file-result'});
-
- local($why) = '';
- local($i);
- local($type, $perm, $uid, $gid, $rest, $c, $len, $name);
- local(@stbuf);
-
- for ($i = 0; $i < $test{'file-result'}; $i++) {
- $val = $test{"file-result:$i"};
-
- # format is: type perm "name"
- ($type, $perm, $uid, $gid, $matchType, $rest) =
- split(' ', $val, 6);
- $c = substr($rest, 0, 1);
- $len = index($rest, $c, 1) - 1;
- $name = substr($rest, 1, $len);
- $rest = substr($rest, 2 + $len);
- $perm = oct($perm) if $perm =~ /^\d+$/;
-
- @stbuf = lstat($name);
- if (!@stbuf) {
- $why .= "\texpected $type \"$name\" not created\n";
- next;
- }
- if ($perm ne '*' && ($stbuf[2] & 07777) != $perm) {
- $why .= "\t$type \"$name\" has unexpected permissions\n";
- $why .= sprintf("\t\texpected 0%o, found 0%o\n",
- $perm, $stbuf[2] & 07777);
- }
- if ($uid ne '*' && $stbuf[4] != $uid) {
- $why .= "\t$type \"$name\" has unexpected user-id\n";
- $why .= sprintf("\t\texpected %d, found %d\n",
- $uid, $stbuf[4]);
- }
- if ($gid ne '*' && $stbuf[5] != $gid) {
- $why .= "\t$type \"$name\" has unexpected group-id\n";
- $why .= sprintf("\t\texpected %d, found %d\n",
- $gid, $stbuf[5]);
- }
-
- if ($type eq 'file') {
- if (-l _ || ! -f _) {
- $why .= "\t$type \"$name\" is not a regular file\n";
- } else {
- local $tmp = &check_output($test{'long-name'}, $name,
- "$type contents in \"$name\"",
- $matchType eq 'exact' ? $rest : undef
- $matchType eq 'pattern' ? $rest : undef);
- return undef if (!defined $tmp);
- $why .= $tmp;
- }
- } elsif ($type eq 'dir') {
- if ($rest !~ /^\s*$/) {
- print STDERR "$prog:$test{':long-name'}: file-result test for directory $name should not have content specified\n";
- return undef;
- }
- if (-l _ || ! -d _) {
- $why .= "\t$type \"$name\" is not a directory\n";
- }
- } elsif ($type eq 'symlink') {
- if (!-l _) {
- $why .= "\t$type \"$name\" is not a symlink\n";
- } else {
- local $content = readlink($name);
- if (!defined $content) {
- print STDERR "$prog:$test{':long-name'}: file-result test for $type $name failed - could not readlink - $!\n";
- return undef;
- }
- local $tmp = &compare_output($test{'long-name'},
- "$type contents in \"$name\"",
- $matchType eq 'exact' ? $rest : undef
- $matchType eq 'pattern' ? $rest : undef);
- return undef if (!defined $tmp);
- $why .= $tmp;
- }
- }
- }
-
- return $why;
-}
-
-sub
-HELP_MESSAGE
-{
- print STDERR $Usage;
- exit 0;
-}
Copied: vendor/MirOS/mksh/R50/check.pl (from rev 6707, vendor/MirOS/mksh/dist/check.pl)
===================================================================
--- vendor/MirOS/mksh/R50/check.pl (rev 0)
+++ vendor/MirOS/mksh/R50/check.pl 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1317 @@
+# $MirOS: src/bin/mksh/check.pl,v 1.36 2014/06/09 13:25:50 tg Exp $
+# $OpenBSD: th,v 1.1 2013/12/02 20:39:44 millert Exp $
+#-
+# Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011,
+# 2012, 2013, 2014
+# Thorsten Glaser <tg at mirbsd.org>
+#
+# Provided that these terms and disclaimer and all copyright notices
+# are retained or reproduced in an accompanying document, permission
+# is granted to deal in this work without restriction, including un-
+# limited rights to use, publicly perform, distribute, sell, modify,
+# merge, give away, or sublicence.
+#
+# This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+# the utmost extent permitted by applicable law, neither express nor
+# implied; without malicious intent or gross negligence. In no event
+# may a licensor, author or contributor be held liable for indirect,
+# direct, other damage, loss, or other issues arising in any way out
+# of dealing in the work, even if advised of the possibility of such
+# damage or existence of a defect, except proven that it results out
+# of said person's immediate fault when using the work as intended.
+#-
+# Example test:
+# name: a-test
+# description:
+# a test to show how tests are done
+# arguments: !-x!-f!
+# stdin:
+# echo -n *
+# false
+# expected-stdout: !
+# *
+# expected-stderr:
+# + echo -n *
+# + false
+# expected-exit: 1
+# ---
+# This runs the test-program (eg, mksh) with the arguments -x and -f,
+# standard input is a file containing "echo hi*\nfalse\n". The program
+# is expected to produce "hi*" (no trailing newline) on standard output,
+# "+ echo hi*\n+false\n" on standard error, and an exit code of 1.
+#
+#
+# Format of test files:
+# - blank lines and lines starting with # are ignored
+# - a test file contains a series of tests
+# - a test is a series of tag:value pairs ended with a "---" line
+# (leading/trailing spaces are stripped from the first line of value)
+# - test tags are:
+# Tag Flag Description
+# ----- ---- -----------
+# name r The name of the test; should be unique
+# description m What test does
+# arguments M Arguments to pass to the program;
+# default is no arguments.
+# script m Value is written to a file which
+# is passed as an argument to the program
+# (after the arguments arguments)
+# stdin m Value is written to a file which is
+# used as standard-input for the program;
+# default is to use /dev/null.
+# perl-setup m Value is a perl script which is executed
+# just before the test is run. Try to
+# avoid using this...
+# perl-cleanup m Value is a perl script which is executed
+# just after the test is run. Try to
+# avoid using this...
+# env-setup M Value is a list of NAME=VALUE elements
+# which are put in the environment before
+# the test is run. If the =VALUE is
+# missing, NAME is removed from the
+# environment. Programs are run with
+# the following minimal environment:
+# HOME, LD_LIBRARY_PATH, LOCPATH,
+# LOGNAME, PATH, SHELL, UNIXMODE,
+# USER
+# (values taken from the environment of
+# the test harness).
+# CYGWIN is set to nodosfilewarning.
+# ENV is set to /nonexistant.
+# __progname is set to the -p argument.
+# __perlname is set to $^X (perlexe).
+# file-setup mps Used to create files, directories
+# and symlinks. First word is either
+# file, dir or symlink; second word is
+# permissions; this is followed by a
+# quoted word that is the name of the
+# file; the end-quote should be followed
+# by a newline, then the file data
+# (if any). The first word may be
+# preceded by a ! to strip the trailing
+# newline in a symlink.
+# file-result mps Used to verify a file, symlink or
+# directory is created correctly.
+# The first word is either
+# file, dir or symlink; second word is
+# expected permissions; third word
+# is user-id; fourth is group-id;
+# fifth is "exact" or "pattern"
+# indicating whether the file contents
+# which follow is to be matched exactly
+# or if it is a regular expression.
+# The fifth argument is the quoted name
+# of the file that should be created.
+# The end-quote should be followed
+# by a newline, then the file data
+# (if any). The first word may be
+# preceded by a ! to strip the trailing
+# newline in the file contents.
+# The permissions, user and group fields
+# may be * meaning accept any value.
+# time-limit Time limit - the program is sent a
+# SIGKILL N seconds. Default is no
+# limit.
+# expected-fail 'yes' if the test is expected to fail.
+# expected-exit expected exit code. Can be a number,
+# or a C expression using the variables
+# e, s and w (exit code, termination
+# signal, and status code).
+# expected-stdout m What the test should generate on stdout;
+# default is to expect no output.
+# expected-stdout-pattern m A perl pattern which matches the
+# expected output.
+# expected-stderr m What the test should generate on stderr;
+# default is to expect no output.
+# expected-stderr-pattern m A perl pattern which matches the
+# expected standard error.
+# category m Specify a comma separated list of
+# 'categories' of program that the test
+# is to be run for. A category can be
+# negated by prefixing the name with a !.
+# The idea is that some tests in a
+# test suite may apply to a particular
+# program version and shouldn't be run
+# on other versions. The category(s) of
+# the program being tested can be
+# specified on the command line.
+# One category os:XXX is predefined
+# (XXX is the operating system name,
+# eg, linux, dec_osf).
+# need-ctty 'yes' if the test needs a ctty, run
+# with -C regress:no-ctty to disable.
+# Flag meanings:
+# r tag is required (eg, a test must have a name tag).
+# m value can be multiple lines. Lines must be prefixed with
+# a tab. If the value part of the initial tag:value line is
+# - empty: the initial blank line is stripped.
+# - a lone !: the last newline in the value is stripped;
+# M value can be multiple lines (prefixed by a tab) and consists
+# of multiple fields, delimited by a field separator character.
+# The value must start and end with the f-s-c.
+# p tag takes parameters (used with m).
+# s tag can be used several times.
+
+# pull EINTR from POSIX.pm or Errno.pm if they exist
+# otherwise just skip it
+BEGIN {
+ $EINTR = 0;
+ eval {
+ require POSIX;
+ $EINTR = POSIX::EINTR();
+ };
+ if ($@) {
+ eval {
+ require Errno;
+ $EINTR = Errno::EINTR();
+ } or do {
+ $EINTR = 0;
+ };
+ }
+};
+
+use Getopt::Std;
+use Config;
+
+$os = defined $^O ? $^O : 'unknown';
+
+($prog = $0) =~ s#.*/##;
+
+$Usage = <<EOF ;
+Usage: $prog [-Pv] [-C cat] [-e e=v] [-p prog] [-s fn] [-T dir] \
+ [-t tmo] name ...
+ -C c Specify the comma separated list of categories the program
+ belongs to (see category field).
+ -e e=v Set the environment variable e to v for all tests
+ (if no =v is given, the current value is used)
+ Only one -e option can be given at the moment, sadly.
+ -P program (-p) string has multiple words, and the program is in
+ the path (kludge option)
+ -p p Use p as the program to test
+ -s s Read tests from file s; if s is a directory, it is recursively
+ scaned for test files (which end in .t).
+ -T dir Use dir instead of /tmp to hold temporary files
+ -t t Use t as default time limit for tests (default is unlimited)
+ -v Verbose mode: print reason test failed.
+ name specifies the name of the test(s) to run; if none are
+ specified, all tests are run.
+EOF
+
+# See comment above for flag meanings
+%test_fields = (
+ 'name', 'r',
+ 'description', 'm',
+ 'arguments', 'M',
+ 'script', 'm',
+ 'stdin', 'm',
+ 'perl-setup', 'm',
+ 'perl-cleanup', 'm',
+ 'env-setup', 'M',
+ 'file-setup', 'mps',
+ 'file-result', 'mps',
+ 'time-limit', '',
+ 'expected-fail', '',
+ 'expected-exit', '',
+ 'expected-stdout', 'm',
+ 'expected-stdout-pattern', 'm',
+ 'expected-stderr', 'm',
+ 'expected-stderr-pattern', 'm',
+ 'category', 'm',
+ 'need-ctty', '',
+ 'need-pass', '',
+ );
+# Filled in by read_test()
+%internal_test_fields = (
+ ':full-name', 1, # file:name
+ ':long-name', 1, # dir/file:lineno:name
+ );
+
+# Categories of the program under test. Provide the current
+# os by default.
+%categories = (
+ "os:$os", '1'
+ );
+
+$nfailed = 0;
+$nifailed = 0;
+$nxfailed = 0;
+$npassed = 0;
+$nxpassed = 0;
+
+%known_tests = ();
+
+if (!getopts('C:e:Pp:s:T:t:v')) {
+ print STDERR $Usage;
+ exit 1;
+}
+
+die "$prog: no program specified (use -p)\n" if !defined $opt_p;
+die "$prog: no test set specified (use -s)\n" if !defined $opt_s;
+$test_prog = $opt_p;
+$verbose = defined $opt_v && $opt_v;
+$test_set = $opt_s;
+$temp_base = $opt_T || "/tmp";
+if (defined $opt_t) {
+ die "$prog: bad -t argument (should be number > 0): $opt_t\n"
+ if $opt_t !~ /^\d+$/ || $opt_t <= 0;
+ $default_time_limit = $opt_t;
+}
+$program_kludge = defined $opt_P ? $opt_P : 0;
+
+if (defined $opt_C) {
+ foreach $c (split(',', $opt_C)) {
+ $c =~ s/\s+//;
+ die "$prog: categories can't be negated on the command line\n"
+ if ($c =~ /^!/);
+ $categories{$c} = 1;
+ }
+}
+
+# Note which tests are to be run.
+%do_test = ();
+grep($do_test{$_} = 1, @ARGV);
+$all_tests = @ARGV == 0;
+
+# Set up a very minimal environment
+%new_env = ();
+foreach $env (('HOME', 'LD_LIBRARY_PATH', 'LOCPATH', 'LOGNAME',
+ 'PATH', 'SHELL', 'UNIXMODE', 'USER')) {
+ $new_env{$env} = $ENV{$env} if defined $ENV{$env};
+}
+$new_env{'CYGWIN'} = 'nodosfilewarning';
+$new_env{'ENV'} = '/nonexistant';
+if (($os eq 'VMS') || ($Config{perlpath} =~ m/$Config{_exe}$/i)) {
+ $new_env{'__perlname'} = $Config{perlpath};
+} else {
+ $new_env{'__perlname'} = $Config{perlpath} . $Config{_exe};
+}
+if (defined $opt_e) {
+ # XXX need a way to allow many -e arguments...
+ if ($opt_e =~ /^([a-zA-Z_]\w*)(|=(.*))$/) {
+ $new_env{$1} = $2 eq '' ? $ENV{$1} : $3;
+ } else {
+ die "$0: bad -e argument: $opt_e\n";
+ }
+}
+%old_env = %ENV;
+
+chop($pwd = `pwd 2>/dev/null`);
+die "$prog: couldn't get current working directory\n" if $pwd eq '';
+die "$prog: couldn't cd to $pwd - $!\n" if !chdir($pwd);
+
+die "$prog: couldn't cd to $temp_base - $!\n" if !chdir($temp_base);
+die "$prog: couldn't get temporary directory base\n" unless -d '.';
+$temps = sprintf("chk%d-%d.", $$, time());
+$tempi = 0;
+until (mkdir(($tempdir = sprintf("%s%03d", $temps, $tempi)), 0700)) {
+ die "$prog: couldn't get temporary directory\n" if $tempi++ >= 999;
+}
+die "$prog: couldn't cd to $tempdir - $!\n" if !chdir($tempdir);
+chop($temp_dir = `pwd 2>/dev/null`);
+die "$prog: couldn't get temporary directory\n" if $temp_dir eq '';
+die "$prog: couldn't cd to $pwd - $!\n" if !chdir($pwd);
+
+if (!$program_kludge) {
+ $test_prog = "$pwd/$test_prog" if substr($test_prog, 0, 1) ne '/';
+ die "$prog: $test_prog is not executable - bye\n"
+ if (! -x $test_prog && $os ne 'os2');
+}
+
+ at trap_sigs = ('TERM', 'QUIT', 'INT', 'PIPE', 'HUP');
+ at SIG{@trap_sigs} = ('cleanup_exit') x @trap_sigs;
+$child_kill_ok = 0;
+$SIG{'ALRM'} = 'catch_sigalrm';
+
+$| = 1;
+
+# Create temp files
+$temps = "${temp_dir}/rts";
+$tempi = "${temp_dir}/rti";
+$tempo = "${temp_dir}/rto";
+$tempe = "${temp_dir}/rte";
+$tempdir = "${temp_dir}/rtd";
+mkdir($tempdir, 0700) or die "$prog: couldn't mkdir $tempdir - $!\n";
+
+if (-d $test_set) {
+ $file_prefix_skip = length($test_set) + 1;
+ $ret = &process_test_dir($test_set);
+} else {
+ $file_prefix_skip = 0;
+ $ret = &process_test_file($test_set);
+}
+&cleanup_exit() if !defined $ret;
+
+$tot_failed = $nfailed + $nifailed + $nxfailed;
+$tot_passed = $npassed + $nxpassed;
+if ($tot_failed || $tot_passed) {
+ print "Total failed: $tot_failed";
+ print " ($nifailed ignored)" if $nifailed;
+ print " ($nxfailed unexpected)" if $nxfailed;
+ print " (as expected)" if $nfailed && !$nxfailed && !$nifailed;
+ print "\nTotal passed: $tot_passed";
+ print " ($nxpassed unexpected)" if $nxpassed;
+ print "\n";
+}
+
+&cleanup_exit('ok');
+
+sub
+cleanup_exit
+{
+ local($sig, $exitcode) = ('', 1);
+
+ if ($_[0] eq 'ok') {
+ unless ($nxfailed) {
+ $exitcode = 0;
+ } else {
+ $exitcode = 1;
+ }
+ } elsif ($_[0] ne '') {
+ $sig = $_[0];
+ }
+
+ unlink($tempi, $tempo, $tempe, $temps);
+ &scrub_dir($tempdir) if defined $tempdir;
+ rmdir($tempdir) if defined $tempdir;
+ rmdir($temp_dir) if defined $temp_dir;
+
+ if ($sig) {
+ $SIG{$sig} = 'DEFAULT';
+ kill $sig, $$;
+ return;
+ }
+ exit $exitcode;
+}
+
+sub
+catch_sigalrm
+{
+ $SIG{'ALRM'} = 'catch_sigalrm';
+ kill(9, $child_pid) if $child_kill_ok;
+ $child_killed = 1;
+}
+
+sub
+process_test_dir
+{
+ local($dir) = @_;
+ local($ret, $file);
+ local(@todo) = ();
+
+ if (!opendir(DIR, $dir)) {
+ print STDERR "$prog: can't open directory $dir - $!\n";
+ return undef;
+ }
+ while (defined ($file = readdir(DIR))) {
+ push(@todo, $file) if $file =~ /^[^.].*\.t$/;
+ }
+ closedir(DIR);
+
+ foreach $file (@todo) {
+ $file = "$dir/$file";
+ if (-d $file) {
+ $ret = &process_test_dir($file);
+ } elsif (-f _) {
+ $ret = &process_test_file($file);
+ }
+ last if !defined $ret;
+ }
+
+ return $ret;
+}
+
+sub
+process_test_file
+{
+ local($file) = @_;
+ local($ret);
+
+ if (!open(IN, $file)) {
+ print STDERR "$prog: can't open $file - $!\n";
+ return undef;
+ }
+ binmode(IN);
+ while (1) {
+ $ret = &read_test($file, IN, *test);
+ last if !defined $ret || !$ret;
+ next if !$all_tests && !$do_test{$test{'name'}};
+ next if !&category_check(*test);
+ $ret = &run_test(*test);
+ last if !defined $ret;
+ }
+ close(IN);
+
+ return $ret;
+}
+
+sub
+run_test
+{
+ local(*test) = @_;
+ local($name) = $test{':full-name'};
+
+ return undef if !&scrub_dir($tempdir);
+
+ if (defined $test{'stdin'}) {
+ return undef if !&write_file($tempi, $test{'stdin'});
+ $ifile = $tempi;
+ } else {
+ $ifile = '/dev/null';
+ }
+
+ if (defined $test{'script'}) {
+ return undef if !&write_file($temps, $test{'script'});
+ }
+
+ if (!chdir($tempdir)) {
+ print STDERR "$prog: couldn't cd to $tempdir - $!\n";
+ return undef;
+ }
+
+ if (defined $test{'file-setup'}) {
+ local($i);
+ local($type, $perm, $rest, $c, $len, $name);
+
+ for ($i = 0; $i < $test{'file-setup'}; $i++) {
+ $val = $test{"file-setup:$i"};
+
+ # format is: type perm "name"
+ ($type, $perm, $rest) =
+ split(' ', $val, 3);
+ $c = substr($rest, 0, 1);
+ $len = index($rest, $c, 1) - 1;
+ $name = substr($rest, 1, $len);
+ $rest = substr($rest, 2 + $len);
+ $perm = oct($perm) if $perm =~ /^\d+$/;
+ if ($type eq 'file') {
+ return undef if !&write_file($name, $rest);
+ if (!chmod($perm, $name)) {
+ print STDERR
+ "$prog:$test{':long-name'}: can't chmod $perm $name - $!\n";
+ return undef;
+ }
+ } elsif ($type eq 'dir') {
+ if (!mkdir($name, $perm)) {
+ print STDERR
+ "$prog:$test{':long-name'}: can't mkdir $perm $name - $!\n";
+ return undef;
+ }
+ } elsif ($type eq 'symlink') {
+ local($oumask) = umask($perm);
+ local($ret) = symlink($rest, $name);
+ umask($oumask);
+ if (!$ret) {
+ print STDERR
+ "$prog:$test{':long-name'}: couldn't create symlink $name - $!\n";
+ return undef;
+ }
+ }
+ }
+ }
+
+ if (defined $test{'perl-setup'}) {
+ eval $test{'perl-setup'};
+ if ($@ ne '') {
+ print STDERR "$prog:$test{':long-name'}: error running perl-setup - $@\n";
+ return undef;
+ }
+ }
+
+ $pid = fork;
+ if (!defined $pid) {
+ print STDERR "$prog: can't fork - $!\n";
+ return undef;
+ }
+ if (!$pid) {
+ @SIG{@trap_sigs} = ('DEFAULT') x @trap_sigs;
+ $SIG{'ALRM'} = 'DEFAULT';
+ if (defined $test{'env-setup'}) {
+ local($var, $val, $i);
+
+ foreach $var (split(substr($test{'env-setup'}, 0, 1),
+ $test{'env-setup'}))
+ {
+ $i = index($var, '=');
+ next if $i == 0 || $var eq '';
+ if ($i < 0) {
+ delete $new_env{$var};
+ } else {
+ $new_env{substr($var, 0, $i)} = substr($var, $i + 1);
+ }
+ }
+ }
+ if (!open(STDIN, "< $ifile")) {
+ print STDERR "$prog: couldn't open $ifile in child - $!\n";
+ kill('TERM', $$);
+ }
+ binmode(STDIN);
+ if (!open(STDOUT, "> $tempo")) {
+ print STDERR "$prog: couldn't open $tempo in child - $!\n";
+ kill('TERM', $$);
+ }
+ binmode(STDOUT);
+ if (!open(STDERR, "> $tempe")) {
+ print STDOUT "$prog: couldn't open $tempe in child - $!\n";
+ kill('TERM', $$);
+ }
+ binmode(STDERR);
+ if ($program_kludge) {
+ @argv = split(' ', $test_prog);
+ } else {
+ @argv = ($test_prog);
+ }
+ if (defined $test{'arguments'}) {
+ push(@argv,
+ split(substr($test{'arguments'}, 0, 1),
+ substr($test{'arguments'}, 1)));
+ }
+ push(@argv, $temps) if defined $test{'script'};
+
+ #XXX realpathise, use which/whence -p, or sth. like that
+ #XXX if !$program_kludge, we get by with not doing it for now tho
+ $new_env{'__progname'} = $argv[0];
+
+ # The following doesn't work with perl5... Need to do it explicitly - yuck.
+ #%ENV = %new_env;
+ foreach $k (keys(%ENV)) {
+ delete $ENV{$k};
+ }
+ $ENV{$k} = $v while ($k,$v) = each %new_env;
+
+ exec { $argv[0] } @argv;
+ print STDERR "$prog: couldn't execute $test_prog - $!\n";
+ kill('TERM', $$);
+ exit(95);
+ }
+ $child_pid = $pid;
+ $child_killed = 0;
+ $child_kill_ok = 1;
+ alarm($test{'time-limit'}) if defined $test{'time-limit'};
+ while (1) {
+ $xpid = waitpid($pid, 0);
+ $child_kill_ok = 0;
+ if ($xpid < 0) {
+ if ($EINTR) {
+ next if $! == $EINTR;
+ }
+ print STDERR "$prog: error waiting for child - $!\n";
+ return undef;
+ }
+ last;
+ }
+ $status = $?;
+ alarm(0) if defined $test{'time-limit'};
+
+ $failed = 0;
+ $why = '';
+
+ if ($child_killed) {
+ $failed = 1;
+ $why .= "\ttest timed out (limit of $test{'time-limit'} seconds)\n";
+ }
+
+ $ret = &eval_exit($test{'long-name'}, $status, $test{'expected-exit'});
+ return undef if !defined $ret;
+ if (!$ret) {
+ local($expl);
+
+ $failed = 1;
+ if (($status & 0xff) == 0x7f) {
+ $expl = "stopped";
+ } elsif (($status & 0xff)) {
+ $expl = "signal " . ($status & 0x7f);
+ } else {
+ $expl = "exit-code " . (($status >> 8) & 0xff);
+ }
+ $why .=
+ "\tunexpected exit status $status ($expl), expected $test{'expected-exit'}\n";
+ }
+
+ $tmp = &check_output($test{'long-name'}, $tempo, 'stdout',
+ $test{'expected-stdout'}, $test{'expected-stdout-pattern'});
+ return undef if !defined $tmp;
+ if ($tmp ne '') {
+ $failed = 1;
+ $why .= $tmp;
+ }
+
+ $tmp = &check_output($test{'long-name'}, $tempe, 'stderr',
+ $test{'expected-stderr'}, $test{'expected-stderr-pattern'});
+ return undef if !defined $tmp;
+ if ($tmp ne '') {
+ $failed = 1;
+ $why .= $tmp;
+ }
+
+ $tmp = &check_file_result(*test);
+ return undef if !defined $tmp;
+ if ($tmp ne '') {
+ $failed = 1;
+ $why .= $tmp;
+ }
+
+ if (defined $test{'perl-cleanup'}) {
+ eval $test{'perl-cleanup'};
+ if ($@ ne '') {
+ print STDERR "$prog:$test{':long-name'}: error running perl-cleanup - $@\n";
+ return undef;
+ }
+ }
+
+ if (!chdir($pwd)) {
+ print STDERR "$prog: couldn't cd to $pwd - $!\n";
+ return undef;
+ }
+
+ if ($failed) {
+ if (!$test{'expected-fail'}) {
+ if ($test{'need-pass'}) {
+ print "FAIL $name\n";
+ $nxfailed++;
+ } else {
+ print "FAIL $name (ignored)\n";
+ $nifailed++;
+ }
+ } else {
+ print "fail $name (as expected)\n";
+ $nfailed++;
+ }
+ $why = "\tDescription"
+ . &wrap_lines($test{'description'}, " (missing)\n")
+ . $why;
+ } elsif ($test{'expected-fail'}) {
+ print "PASS $name (unexpectedly)\n";
+ $nxpassed++;
+ } else {
+ print "pass $name\n";
+ $npassed++;
+ }
+ print $why if $verbose;
+ return 0;
+}
+
+sub
+category_check
+{
+ local(*test) = @_;
+ local($c);
+
+ return 0 if ($test{'need-ctty'} && defined $categories{'regress:no-ctty'});
+ return 1 if (!defined $test{'category'});
+ local($ok) = 0;
+ foreach $c (split(',', $test{'category'})) {
+ $c =~ s/\s+//;
+ if ($c =~ /^!/) {
+ $c = $';
+ return 0 if (defined $categories{$c});
+ $ok = 1;
+ } else {
+ $ok = 1 if (defined $categories{$c});
+ }
+ }
+ return $ok;
+}
+
+sub
+scrub_dir
+{
+ local($dir) = @_;
+ local(@todo) = ();
+ local($file);
+
+ if (!opendir(DIR, $dir)) {
+ print STDERR "$prog: couldn't open directory $dir - $!\n";
+ return undef;
+ }
+ while (defined ($file = readdir(DIR))) {
+ push(@todo, $file) if $file ne '.' && $file ne '..';
+ }
+ closedir(DIR);
+ foreach $file (@todo) {
+ $file = "$dir/$file";
+ if (-d $file) {
+ return undef if !&scrub_dir($file);
+ if (!rmdir($file)) {
+ print STDERR "$prog: couldn't rmdir $file - $!\n";
+ return undef;
+ }
+ } else {
+ if (!unlink($file)) {
+ print STDERR "$prog: couldn't unlink $file - $!\n";
+ return undef;
+ }
+ }
+ }
+ return 1;
+}
+
+sub
+write_file
+{
+ local($file, $str) = @_;
+
+ if (!open(TEMP, "> $file")) {
+ print STDERR "$prog: can't open $file - $!\n";
+ return undef;
+ }
+ binmode(TEMP);
+ print TEMP $str;
+ if (!close(TEMP)) {
+ print STDERR "$prog: error writing $file - $!\n";
+ return undef;
+ }
+ return 1;
+}
+
+sub
+check_output
+{
+ local($name, $file, $what, $expect, $expect_pat) = @_;
+ local($got) = '';
+ local($why) = '';
+ local($ret);
+
+ if (!open(TEMP, "< $file")) {
+ print STDERR "$prog:$name($what): couldn't open $file after running program - $!\n";
+ return undef;
+ }
+ binmode(TEMP);
+ while (<TEMP>) {
+ $got .= $_;
+ }
+ close(TEMP);
+ return compare_output($name, $what, $expect, $expect_pat, $got);
+}
+
+sub
+compare_output
+{
+ local($name, $what, $expect, $expect_pat, $got) = @_;
+ local($why) = '';
+
+ if (defined $expect_pat) {
+ $_ = $got;
+ $ret = eval "$expect_pat";
+ if ($@ ne '') {
+ print STDERR "$prog:$name($what): error evaluating $what pattern: $expect_pat - $@\n";
+ return undef;
+ }
+ if (!$ret) {
+ $why = "\tunexpected $what - wanted pattern";
+ $why .= &wrap_lines($expect_pat);
+ $why .= "\tgot";
+ $why .= &wrap_lines($got);
+ }
+ } else {
+ $expect = '' if !defined $expect;
+ if ($got ne $expect) {
+ $why .= "\tunexpected $what - " . &first_diff($expect, $got) . "\n";
+ $why .= "\twanted";
+ $why .= &wrap_lines($expect);
+ $why .= "\tgot";
+ $why .= &wrap_lines($got);
+ }
+ }
+ return $why;
+}
+
+sub
+wrap_lines
+{
+ local($str, $empty) = @_;
+ local($nonl) = substr($str, -1, 1) ne "\n";
+
+ return (defined $empty ? $empty : " nothing\n") if $str eq '';
+ substr($str, 0, 0) = ":\n";
+ $str =~ s/\n/\n\t\t/g;
+ if ($nonl) {
+ $str .= "\n\t[incomplete last line]\n";
+ } else {
+ chop($str);
+ chop($str);
+ }
+ return $str;
+}
+
+sub
+first_diff
+{
+ local($exp, $got) = @_;
+ local($lineno, $char) = (1, 1);
+ local($i, $exp_len, $got_len);
+ local($ce, $cg);
+
+ $exp_len = length($exp);
+ $got_len = length($got);
+ if ($exp_len != $got_len) {
+ if ($exp_len < $got_len) {
+ if (substr($got, 0, $exp_len) eq $exp) {
+ return "got too much output";
+ }
+ } elsif (substr($exp, 0, $got_len) eq $got) {
+ return "got too little output";
+ }
+ }
+ for ($i = 0; $i < $exp_len; $i++) {
+ $ce = substr($exp, $i, 1);
+ $cg = substr($got, $i, 1);
+ last if $ce ne $cg;
+ $char++;
+ if ($ce eq "\n") {
+ $lineno++;
+ $char = 1;
+ }
+ }
+ return "first difference: line $lineno, char $char (wanted '"
+ . &format_char($ce) . "', got '"
+ . &format_char($cg) . "'";
+}
+
+sub
+format_char
+{
+ local($ch, $s);
+
+ $ch = ord($_[0]);
+ if ($ch == 10) {
+ return '\n';
+ } elsif ($ch == 13) {
+ return '\r';
+ } elsif ($ch == 8) {
+ return '\b';
+ } elsif ($ch == 9) {
+ return '\t';
+ } elsif ($ch > 127) {
+ $ch -= 127;
+ $s = "M-";
+ } else {
+ $s = '';
+ }
+ if ($ch < 32) {
+ $s .= '^';
+ $ch += ord('@');
+ } elsif ($ch == 127) {
+ return $s . "^?";
+ }
+ return $s . sprintf("%c", $ch);
+}
+
+sub
+eval_exit
+{
+ local($name, $status, $expect) = @_;
+ local($expr);
+ local($w, $e, $s) = ($status, ($status >> 8) & 0xff, $status & 0x7f);
+
+ $e = -1000 if $status & 0xff;
+ $s = -1000 if $s == 0x7f;
+ if (!defined $expect) {
+ $expr = '$w == 0';
+ } elsif ($expect =~ /^(|-)\d+$/) {
+ $expr = "\$e == $expect";
+ } else {
+ $expr = $expect;
+ $expr =~ s/\b([wse])\b/\$$1/g;
+ $expr =~ s/\b(SIG[A-Z][A-Z0-9]*)\b/&$1/g;
+ }
+ $w = eval $expr;
+ if ($@ ne '') {
+ print STDERR "$prog:$test{':long-name'}: bad expected-exit expression: $expect ($@)\n";
+ return undef;
+ }
+ return $w;
+}
+
+sub
+read_test
+{
+ local($file, $in, *test) = @_;
+ local($field, $val, $flags, $do_chop, $need_redo, $start_lineno);
+ local(%cnt, $sfield);
+
+ %test = ();
+ %cnt = ();
+ while (<$in>) {
+ chop;
+ next if /^\s*$/;
+ next if /^ *#/;
+ last if /^\s*---\s*$/;
+ $start_lineno = $. if !defined $start_lineno;
+ if (!/^([-\w]+):\s*(|\S|\S.*\S)\s*$/) {
+ print STDERR "$prog:$file:$.: unrecognised line \"$_\"\n";
+ return undef;
+ }
+ ($field, $val) = ($1, $2);
+ $sfield = $field;
+ $flags = $test_fields{$field};
+ if (!defined $flags) {
+ print STDERR "$prog:$file:$.: unrecognised field \"$field\"\n";
+ return undef;
+ }
+ if ($flags =~ /s/) {
+ local($cnt) = $cnt{$field}++;
+ $test{$field} = $cnt{$field};
+ $cnt = 0 if $cnt eq '';
+ $sfield .= ":$cnt";
+ } elsif (defined $test{$field}) {
+ print STDERR "$prog:$file:$.: multiple \"$field\" fields\n";
+ return undef;
+ }
+ $do_chop = $flags !~ /m/;
+ $need_redo = 0;
+ if ($val eq '' || $val eq '!' || $flags =~ /p/) {
+ if ($flags =~ /[Mm]/) {
+ if ($flags =~ /p/) {
+ if ($val =~ /^!/) {
+ $do_chop = 1;
+ $val = $';
+ } else {
+ $do_chop = 0;
+ }
+ if ($val eq '') {
+ print STDERR
+ "$prog:$file:$.: no parameters given for field \"$field\"\n";
+ return undef;
+ }
+ } else {
+ if ($val eq '!') {
+ $do_chop = 1;
+ }
+ $val = '';
+ }
+ while (<$in>) {
+ last if !/^\t/;
+ $val .= $';
+ }
+ chop $val if $do_chop;
+ $do_chop = 1;
+ $need_redo = 1;
+
+ # Syntax check on fields that can several instances
+ # (can give useful line numbers this way)
+
+ if ($field eq 'file-setup') {
+ local($type, $perm, $rest, $c, $len, $name);
+
+ # format is: type perm "name"
+ if ($val !~ /^[ \t]*(\S+)[ \t]+(\S+)[ \t]+([^ \t].*)/) {
+ print STDERR
+ "$prog:$file:$.: bad parameter line for file-setup field\n";
+ return undef;
+ }
+ ($type, $perm, $rest) = ($1, $2, $3);
+ if ($type !~ /^(file|dir|symlink)$/) {
+ print STDERR
+ "$prog:$file:$.: bad file type for file-setup: $type\n";
+ return undef;
+ }
+ if ($perm !~ /^\d+$/) {
+ print STDERR
+ "$prog:$file:$.: bad permissions for file-setup: $type\n";
+ return undef;
+ }
+ $c = substr($rest, 0, 1);
+ if (($len = index($rest, $c, 1) - 1) <= 0) {
+ print STDERR
+ "$prog:$file:$.: missing end quote for file name in file-setup: $rest\n";
+ return undef;
+ }
+ $name = substr($rest, 1, $len);
+ if ($name =~ /^\// || $name =~ /(^|\/)\.\.(\/|$)/) {
+ # Note: this is not a security thing - just a sanity
+ # check - a test can still use symlinks to get at files
+ # outside the test directory.
+ print STDERR
+"$prog:$file:$.: file name in file-setup is absolute or contains ..: $name\n";
+ return undef;
+ }
+ }
+ if ($field eq 'file-result') {
+ local($type, $perm, $uid, $gid, $matchType,
+ $rest, $c, $len, $name);
+
+ # format is: type perm uid gid matchType "name"
+ if ($val !~ /^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S.*)/) {
+ print STDERR
+ "$prog:$file:$.: bad parameter line for file-result field\n";
+ return undef;
+ }
+ ($type, $perm, $uid, $gid, $matchType, $rest)
+ = ($1, $2, $3, $4, $5, $6);
+ if ($type !~ /^(file|dir|symlink)$/) {
+ print STDERR
+ "$prog:$file:$.: bad file type for file-result: $type\n";
+ return undef;
+ }
+ if ($perm !~ /^\d+$/ && $perm ne '*') {
+ print STDERR
+ "$prog:$file:$.: bad permissions for file-result: $perm\n";
+ return undef;
+ }
+ if ($uid !~ /^\d+$/ && $uid ne '*') {
+ print STDERR
+ "$prog:$file:$.: bad user-id for file-result: $uid\n";
+ return undef;
+ }
+ if ($gid !~ /^\d+$/ && $gid ne '*') {
+ print STDERR
+ "$prog:$file:$.: bad group-id for file-result: $gid\n";
+ return undef;
+ }
+ if ($matchType !~ /^(exact|pattern)$/) {
+ print STDERR
+ "$prog:$file:$.: bad match type for file-result: $matchType\n";
+ return undef;
+ }
+ $c = substr($rest, 0, 1);
+ if (($len = index($rest, $c, 1) - 1) <= 0) {
+ print STDERR
+ "$prog:$file:$.: missing end quote for file name in file-result: $rest\n";
+ return undef;
+ }
+ $name = substr($rest, 1, $len);
+ if ($name =~ /^\// || $name =~ /(^|\/)\.\.(\/|$)/) {
+ # Note: this is not a security thing - just a sanity
+ # check - a test can still use symlinks to get at files
+ # outside the test directory.
+ print STDERR
+"$prog:$file:$.: file name in file-result is absolute or contains ..: $name\n";
+ return undef;
+ }
+ }
+ } elsif ($val eq '') {
+ print STDERR
+ "$prog:$file:$.: no value given for field \"$field\"\n";
+ return undef;
+ }
+ }
+ $val .= "\n" if !$do_chop;
+ $test{$sfield} = $val;
+ redo if $need_redo;
+ }
+ if ($_ eq '') {
+ if (%test) {
+ print STDERR
+ "$prog:$file:$start_lineno: end-of-file while reading test\n";
+ return undef;
+ }
+ return 0;
+ }
+
+ while (($field, $val) = each %test_fields) {
+ if ($val =~ /r/ && !defined $test{$field}) {
+ print STDERR
+ "$prog:$file:$start_lineno: required field \"$field\" missing\n";
+ return undef;
+ }
+ }
+
+ $test{':full-name'} = substr($file, $file_prefix_skip) . ":$test{'name'}";
+ $test{':long-name'} = "$file:$start_lineno:$test{'name'}";
+
+ # Syntax check on specific fields
+ if (defined $test{'expected-fail'}) {
+ if ($test{'expected-fail'} !~ /^(yes|no)$/) {
+ print STDERR
+ "$prog:$test{':long-name'}: bad value for expected-fail field\n";
+ return undef;
+ }
+ $test{'expected-fail'} = $1 eq 'yes';
+ } else {
+ $test{'expected-fail'} = 0;
+ }
+ if (defined $test{'need-ctty'}) {
+ if ($test{'need-ctty'} !~ /^(yes|no)$/) {
+ print STDERR
+ "$prog:$test{':long-name'}: bad value for need-ctty field\n";
+ return undef;
+ }
+ $test{'need-ctty'} = $1 eq 'yes';
+ } else {
+ $test{'need-ctty'} = 0;
+ }
+ if (defined $test{'need-pass'}) {
+ if ($test{'need-pass'} !~ /^(yes|no)$/) {
+ print STDERR
+ "$prog:$test{':long-name'}: bad value for need-pass field\n";
+ return undef;
+ }
+ $test{'need-pass'} = $1 eq 'yes';
+ } else {
+ $test{'need-pass'} = 1;
+ }
+ if (defined $test{'arguments'}) {
+ local($firstc) = substr($test{'arguments'}, 0, 1);
+
+ if (substr($test{'arguments'}, -1, 1) ne $firstc) {
+ print STDERR "$prog:$test{':long-name'}: arguments field doesn't start and end with the same character\n";
+ return undef;
+ }
+ }
+ if (defined $test{'env-setup'}) {
+ local($firstc) = substr($test{'env-setup'}, 0, 1);
+
+ if (substr($test{'env-setup'}, -1, 1) ne $firstc) {
+ print STDERR "$prog:$test{':long-name'}: env-setup field doesn't start and end with the same character\n";
+ return undef;
+ }
+ }
+ if (defined $test{'expected-exit'}) {
+ local($val) = $test{'expected-exit'};
+
+ if ($val =~ /^(|-)\d+$/) {
+ if ($val < 0 || $val > 255) {
+ print STDERR "$prog:$test{':long-name'}: expected-exit value $val not in 0..255\n";
+ return undef;
+ }
+ } elsif ($val !~ /^([\s<>+-=*%\/&|!()]|\b[wse]\b|\bSIG[A-Z][A-Z0-9]*\b)+$/) {
+ print STDERR "$prog:$test{':long-name'}: bad expected-exit expression: $val\n";
+ return undef;
+ }
+ } else {
+ $test{'expected-exit'} = 0;
+ }
+ if (defined $test{'expected-stdout'}
+ && defined $test{'expected-stdout-pattern'})
+ {
+ print STDERR "$prog:$test{':long-name'}: can't use both expected-stdout and expected-stdout-pattern\n";
+ return undef;
+ }
+ if (defined $test{'expected-stderr'}
+ && defined $test{'expected-stderr-pattern'})
+ {
+ print STDERR "$prog:$test{':long-name'}: can't use both expected-stderr and expected-stderr-pattern\n";
+ return undef;
+ }
+ if (defined $test{'time-limit'}) {
+ if ($test{'time-limit'} !~ /^\d+$/ || $test{'time-limit'} == 0) {
+ print STDERR
+ "$prog:$test{':long-name'}: bad value for time-limit field\n";
+ return undef;
+ }
+ } elsif (defined $default_time_limit) {
+ $test{'time-limit'} = $default_time_limit;
+ }
+
+ if (defined $known_tests{$test{'name'}}) {
+ print STDERR "$prog:$test{':long-name'}: warning: duplicate test name ${test{'name'}}\n";
+ }
+ $known_tests{$test{'name'}} = 1;
+
+ return 1;
+}
+
+sub
+tty_msg
+{
+ local($msg) = @_;
+
+ open(TTY, "> /dev/tty") || return 0;
+ print TTY $msg;
+ close(TTY);
+ return 1;
+}
+
+sub
+never_called_funcs
+{
+ return 0;
+ &tty_msg("hi\n");
+ &never_called_funcs();
+ &catch_sigalrm();
+ $old_env{'foo'} = 'bar';
+ $internal_test_fields{'foo'} = 'bar';
+}
+
+sub
+check_file_result
+{
+ local(*test) = @_;
+
+ return '' if (!defined $test{'file-result'});
+
+ local($why) = '';
+ local($i);
+ local($type, $perm, $uid, $gid, $rest, $c, $len, $name);
+ local(@stbuf);
+
+ for ($i = 0; $i < $test{'file-result'}; $i++) {
+ $val = $test{"file-result:$i"};
+
+ # format is: type perm "name"
+ ($type, $perm, $uid, $gid, $matchType, $rest) =
+ split(' ', $val, 6);
+ $c = substr($rest, 0, 1);
+ $len = index($rest, $c, 1) - 1;
+ $name = substr($rest, 1, $len);
+ $rest = substr($rest, 2 + $len);
+ $perm = oct($perm) if $perm =~ /^\d+$/;
+
+ @stbuf = lstat($name);
+ if (!@stbuf) {
+ $why .= "\texpected $type \"$name\" not created\n";
+ next;
+ }
+ if ($perm ne '*' && ($stbuf[2] & 07777) != $perm) {
+ $why .= "\t$type \"$name\" has unexpected permissions\n";
+ $why .= sprintf("\t\texpected 0%o, found 0%o\n",
+ $perm, $stbuf[2] & 07777);
+ }
+ if ($uid ne '*' && $stbuf[4] != $uid) {
+ $why .= "\t$type \"$name\" has unexpected user-id\n";
+ $why .= sprintf("\t\texpected %d, found %d\n",
+ $uid, $stbuf[4]);
+ }
+ if ($gid ne '*' && $stbuf[5] != $gid) {
+ $why .= "\t$type \"$name\" has unexpected group-id\n";
+ $why .= sprintf("\t\texpected %d, found %d\n",
+ $gid, $stbuf[5]);
+ }
+
+ if ($type eq 'file') {
+ if (-l _ || ! -f _) {
+ $why .= "\t$type \"$name\" is not a regular file\n";
+ } else {
+ local $tmp = &check_output($test{'long-name'}, $name,
+ "$type contents in \"$name\"",
+ $matchType eq 'exact' ? $rest : undef
+ $matchType eq 'pattern' ? $rest : undef);
+ return undef if (!defined $tmp);
+ $why .= $tmp;
+ }
+ } elsif ($type eq 'dir') {
+ if ($rest !~ /^\s*$/) {
+ print STDERR "$prog:$test{':long-name'}: file-result test for directory $name should not have content specified\n";
+ return undef;
+ }
+ if (-l _ || ! -d _) {
+ $why .= "\t$type \"$name\" is not a directory\n";
+ }
+ } elsif ($type eq 'symlink') {
+ if (!-l _) {
+ $why .= "\t$type \"$name\" is not a symlink\n";
+ } else {
+ local $content = readlink($name);
+ if (!defined $content) {
+ print STDERR "$prog:$test{':long-name'}: file-result test for $type $name failed - could not readlink - $!\n";
+ return undef;
+ }
+ local $tmp = &compare_output($test{'long-name'},
+ "$type contents in \"$name\"",
+ $matchType eq 'exact' ? $rest : undef
+ $matchType eq 'pattern' ? $rest : undef);
+ return undef if (!defined $tmp);
+ $why .= $tmp;
+ }
+ }
+ }
+
+ return $why;
+}
+
+sub
+HELP_MESSAGE
+{
+ print STDERR $Usage;
+ exit 0;
+}
Deleted: vendor/MirOS/mksh/R50/check.t
===================================================================
--- vendor/MirOS/mksh/dist/check.t 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/check.t 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,11177 +0,0 @@
-# $MirOS: src/bin/mksh/check.t,v 1.629 2013/08/14 20:26:15 tg Exp $
-# $OpenBSD: bksl-nl.t,v 1.2 2001/01/28 23:04:56 niklas Exp $
-# $OpenBSD: history.t,v 1.5 2001/01/28 23:04:56 niklas Exp $
-# $OpenBSD: read.t,v 1.3 2003/03/10 03:48:16 david Exp $
-# $OpenBSD: regress.t,v 1.15 2013/07/01 17:25:27 jca Exp $
-# $OpenBSD: obsd-regress.t,v 1.5 2013/07/01 17:25:27 jca Exp $
-#-
-# Copyright © 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
-# 2011, 2012, 2013
-# Thorsten Glaser <tg at mirbsd.org>
-#
-# Provided that these terms and disclaimer and all copyright notices
-# are retained or reproduced in an accompanying document, permission
-# is granted to deal in this work without restriction, including un‐
-# limited rights to use, publicly perform, distribute, sell, modify,
-# merge, give away, or sublicence.
-#
-# This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
-# the utmost extent permitted by applicable law, neither express nor
-# implied; without malicious intent or gross negligence. In no event
-# may a licensor, author or contributor be held liable for indirect,
-# direct, other damage, loss, or other issues arising in any way out
-# of dealing in the work, even if advised of the possibility of such
-# damage or existence of a defect, except proven that it results out
-# of said person’s immediate fault when using the work as intended.
-#-
-# You may also want to test IFS with the script at
-# http://www.research.att.com/~gsf/public/ifs.sh
-#
-# More testsuites at:
-# http://www.freebsd.org/cgi/cvsweb.cgi/src/tools/regression/bin/test/regress.sh?rev=HEAD
-
-expected-stdout:
- @(#)MIRBSD KSH R48 2013/08/14
-description:
- Check version of shell.
-stdin:
- echo $KSH_VERSION
-name: KSH_VERSION
-category: shell:legacy-no
----
-expected-stdout:
- @(#)LEGACY KSH R48 2013/08/14
-description:
- Check version of legacy shell.
-stdin:
- echo $KSH_VERSION
-name: KSH_VERSION-legacy
-category: shell:legacy-yes
----
-name: selftest-1
-description:
- Regression test self-testing
-stdin:
- echo ${foo:-baz}
-expected-stdout:
- baz
----
-name: selftest-2
-description:
- Regression test self-testing
-env-setup: !foo=bar!
-stdin:
- echo ${foo:-baz}
-expected-stdout:
- bar
----
-name: selftest-3
-description:
- Regression test self-testing
-env-setup: !ENV=fnord!
-stdin:
- echo "<$ENV>"
-expected-stdout:
- <fnord>
----
-name: selftest-env
-description:
- Just output the environment variables set (always fails)
-category: disabled
-stdin:
- set
----
-name: selftest-legacy
-description:
- Check some things in the LEGACY KSH
-category: shell:legacy-yes
-stdin:
- set +o emacs
- set +o vi
- [[ "$(set +o) -o" = *"-o emacs -o"* ]] && echo 1=emacs
- [[ "$(set +o) -o" = *"-o vi -o"* ]] && echo 1=vi
- set -o emacs
- set -o vi
- [[ "$(set +o) -o" = *"-o emacs -o"* ]] && echo 2=emacs
- [[ "$(set +o) -o" = *"-o vi -o"* ]] && echo 2=vi
-expected-stdout:
- 2=emacs
- 2=vi
----
-name: selftest-direct-builtin-call
-description:
- Check that direct builtin calls work
-stdin:
- ln -s "$__progname" cat || cp "$__progname" cat
- ln -s "$__progname" echo || cp "$__progname" echo
- ./echo -c 'echo foo' | ./cat -u
-expected-stdout:
- -c echo foo
----
-name: alias-1
-description:
- Check that recursion is detected/avoided in aliases.
-stdin:
- alias fooBar=fooBar
- fooBar
- exit 0
-expected-stderr-pattern:
- /fooBar.*not found.*/
----
-name: alias-2
-description:
- Check that recursion is detected/avoided in aliases.
-stdin:
- alias fooBar=barFoo
- alias barFoo=fooBar
- fooBar
- barFoo
- exit 0
-expected-stderr-pattern:
- /fooBar.*not found.*\n.*barFoo.*not found/
----
-name: alias-3
-description:
- Check that recursion is detected/avoided in aliases.
-stdin:
- alias Echo='echo '
- alias fooBar=barFoo
- alias barFoo=fooBar
- Echo fooBar
- unalias barFoo
- Echo fooBar
-expected-stdout:
- fooBar
- barFoo
----
-name: alias-4
-description:
- Check that alias expansion isn't done on keywords (in keyword
- postitions).
-stdin:
- alias Echo='echo '
- alias while=While
- while false; do echo hi ; done
- Echo while
-expected-stdout:
- While
----
-name: alias-5
-description:
- Check that alias expansion done after alias with trailing space.
-stdin:
- alias Echo='echo '
- alias foo='bar stuff '
- alias bar='Bar1 Bar2 '
- alias stuff='Stuff'
- alias blah='Blah'
- Echo foo blah
-expected-stdout:
- Bar1 Bar2 Stuff Blah
----
-name: alias-6
-description:
- Check that alias expansion done after alias with trailing space.
-stdin:
- alias Echo='echo '
- alias foo='bar bar'
- alias bar='Bar '
- alias blah=Blah
- Echo foo blah
-expected-stdout:
- Bar Bar Blah
----
-name: alias-7
-description:
- Check that alias expansion done after alias with trailing space
- after a keyword.
-stdin:
- alias X='case '
- alias Y=Z
- X Y in 'Y') echo is y ;; Z) echo is z ; esac
-expected-stdout:
- is z
----
-name: alias-8
-description:
- Check that newlines in an alias don't cause the command to be lost.
-stdin:
- alias foo='
-
-
- echo hi
-
-
-
- echo there
-
-
- '
- foo
-expected-stdout:
- hi
- there
----
-name: alias-9
-description:
- Check that recursion is detected/avoided in aliases.
- This check fails for slow machines or Cygwin, raise
- the time-limit clause (e.g. to 7) if this occurs.
-time-limit: 3
-stdin:
- print '#!'"$__progname"'\necho tf' >lq
- chmod +x lq
- PATH=$PWD:$PATH
- alias lq=lq
- lq
- echo = now
- i=`lq`
- print -r -- $i
- echo = out
- exit 0
-expected-stdout:
- tf
- = now
- tf
- = out
----
-name: alias-10
-description:
- Check that recursion is detected/avoided in aliases.
- Regression, introduced during an old bugfix.
-stdin:
- alias foo='print hello '
- alias bar='foo world'
- echo $(bar)
-expected-stdout:
- hello world
----
-name: arith-lazy-1
-description:
- Check that only one side of ternary operator is evaluated
-stdin:
- x=i+=2
- y=j+=2
- typeset -i i=1 j=1
- echo $((1 ? 20 : (x+=2)))
- echo $i,$x
- echo $((0 ? (y+=2) : 30))
- echo $j,$y
-expected-stdout:
- 20
- 1,i+=2
- 30
- 1,j+=2
----
-name: arith-lazy-2
-description:
- Check that assignments not done on non-evaluated side of ternary
- operator
-stdin:
- x=i+=2
- y=j+=2
- typeset -i i=1 j=1
- echo $((1 ? 20 : (x+=2)))
- echo $i,$x
- echo $((0 ? (y+=2) : 30))
- echo $i,$y
-expected-stdout:
- 20
- 1,i+=2
- 30
- 1,j+=2
----
-name: arith-lazy-3
-description:
- Check that assignments not done on non-evaluated side of ternary
- operator and this construct is parsed correctly (Debian #445651)
-stdin:
- x=4
- y=$((0 ? x=1 : 2))
- echo = $x $y =
-expected-stdout:
- = 4 2 =
----
-name: arith-lazy-4
-description:
- Check that preun/postun not done on non-evaluated side of ternary
- operator
-stdin:
- (( m = n = 0, 1 ? n++ : m++ ? 2 : 3 ))
- echo "($n, $m)"
- m=0; echo $(( 0 ? ++m : 2 )); echo $m
- m=0; echo $(( 0 ? m++ : 2 )); echo $m
-expected-stdout:
- (1, 0)
- 2
- 0
- 2
- 0
----
-name: arith-ternary-prec-1
-description:
- Check precedence of ternary operator vs assignment
-stdin:
- typeset -i x=2
- y=$((1 ? 20 : x+=2))
-expected-exit: e != 0
-expected-stderr-pattern:
- /.*:.*1 \? 20 : x\+=2.*lvalue.*\n$/
----
-name: arith-ternary-prec-2
-description:
- Check precedence of ternary operator vs assignment
-stdin:
- typeset -i x=2
- echo $((0 ? x+=2 : 20))
-expected-stdout:
- 20
----
-name: arith-div-assoc-1
-description:
- Check associativity of division operator
-stdin:
- echo $((20 / 2 / 2))
-expected-stdout:
- 5
----
-name: arith-div-byzero
-description:
- Check division by zero errors out
-stdin:
- x=$(echo $((1 / 0)))
- echo =$?:$x.
-expected-stdout:
- =1:.
-expected-stderr-pattern:
- /.*divisor/
----
-name: arith-div-intmin-by-minusone
-description:
- Check division overflow wraps around silently
-category: int:32
-stdin:
- echo signed:$((-2147483648 / -1))r$((-2147483648 % -1)).
- echo unsigned:$((# -2147483648 / -1))r$((# -2147483648 % -1)).
-expected-stdout:
- signed:-2147483648r0.
- unsigned:0r2147483648.
----
-name: arith-div-intmin-by-minusone-64
-description:
- Check division overflow wraps around silently
-category: int:64
-stdin:
- echo signed:$((-9223372036854775808 / -1))r$((-9223372036854775808 % -1)).
- echo unsigned:$((# -9223372036854775808 / -1))r$((# -9223372036854775808 % -1)).
-expected-stdout:
- signed:-9223372036854775808r0.
- unsigned:0r9223372036854775808.
----
-name: arith-assop-assoc-1
-description:
- Check associativity of assignment-operator operator
-stdin:
- typeset -i i=1 j=2 k=3
- echo $((i += j += k))
- echo $i,$j,$k
-expected-stdout:
- 6
- 6,5,3
----
-name: arith-mandatory
-description:
- Passing of this test is *mandatory* for a valid mksh executable!
-category: shell:legacy-no
-stdin:
- typeset -i sari=0
- typeset -Ui uari=0
- typeset -i x=0
- print -r -- $((x++)):$sari=$uari. #0
- let --sari --uari
- print -r -- $((x++)):$sari=$uari. #1
- sari=2147483647 uari=2147483647
- print -r -- $((x++)):$sari=$uari. #2
- let ++sari ++uari
- print -r -- $((x++)):$sari=$uari. #3
- let --sari --uari
- let 'sari *= 2' 'uari *= 2'
- let ++sari ++uari
- print -r -- $((x++)):$sari=$uari. #4
- let ++sari ++uari
- print -r -- $((x++)):$sari=$uari. #5
- sari=-2147483648 uari=-2147483648
- print -r -- $((x++)):$sari=$uari. #6
- let --sari --uari
- print -r -- $((x++)):$sari=$uari. #7
- (( sari = -5 >> 1 ))
- ((# uari = -5 >> 1 ))
- print -r -- $((x++)):$sari=$uari. #8
- (( sari = -2 ))
- ((# uari = sari ))
- print -r -- $((x++)):$sari=$uari. #9
-expected-stdout:
- 0:0=0.
- 1:-1=4294967295.
- 2:2147483647=2147483647.
- 3:-2147483648=2147483648.
- 4:-1=4294967295.
- 5:0=0.
- 6:-2147483648=2147483648.
- 7:2147483647=2147483647.
- 8:-3=2147483645.
- 9:-2=4294967294.
----
-name: arith-unsigned-1
-description:
- Check if unsigned arithmetics work
-category: int:32
-stdin:
- # signed vs unsigned
- echo x1 $((-1)) $((#-1))
- # calculating
- typeset -i vs
- typeset -Ui vu
- vs=4123456789; vu=4123456789
- echo x2 $vs $vu
- (( vs %= 2147483647 ))
- (( vu %= 2147483647 ))
- echo x3 $vs $vu
- vs=4123456789; vu=4123456789
- (( # vs %= 2147483647 ))
- (( # vu %= 2147483647 ))
- echo x4 $vs $vu
- # make sure the calculation does not change unsigned flag
- vs=4123456789; vu=4123456789
- echo x5 $vs $vu
- # short form
- echo x6 $((# vs % 2147483647)) $((# vu % 2147483647))
- # array refs
- set -A va
- va[1975973142]=right
- va[4123456789]=wrong
- echo x7 ${va[#4123456789%2147483647]}
-expected-stdout:
- x1 -1 4294967295
- x2 -171510507 4123456789
- x3 -171510507 4123456789
- x4 1975973142 1975973142
- x5 -171510507 4123456789
- x6 1975973142 1975973142
- x7 right
----
-name: arith-limit32-1
-description:
- Check if arithmetics are 32 bit
-category: int:32
-stdin:
- # signed vs unsigned
- echo x1 $((-1)) $((#-1))
- # calculating
- typeset -i vs
- typeset -Ui vu
- vs=2147483647; vu=2147483647
- echo x2 $vs $vu
- let vs++ vu++
- echo x3 $vs $vu
- vs=4294967295; vu=4294967295
- echo x4 $vs $vu
- let vs++ vu++
- echo x5 $vs $vu
- let vs++ vu++
- echo x6 $vs $vu
-expected-stdout:
- x1 -1 4294967295
- x2 2147483647 2147483647
- x3 -2147483648 2147483648
- x4 -1 4294967295
- x5 0 0
- x6 1 1
----
-name: arith-limit64-1
-description:
- Check if arithmetics are 64 bit
-category: int:64
-stdin:
- # signed vs unsigned
- echo x1 $((-1)) $((#-1))
- # calculating
- typeset -i vs
- typeset -Ui vu
- vs=9223372036854775807; vu=9223372036854775807
- echo x2 $vs $vu
- let vs++ vu++
- echo x3 $vs $vu
- vs=18446744073709551615; vu=18446744073709551615
- echo x4 $vs $vu
- let vs++ vu++
- echo x5 $vs $vu
- let vs++ vu++
- echo x6 $vs $vu
-expected-stdout:
- x1 -1 18446744073709551615
- x2 9223372036854775807 9223372036854775807
- x3 -9223372036854775808 9223372036854775808
- x4 -1 18446744073709551615
- x5 0 0
- x6 1 1
----
-name: bksl-nl-ign-1
-description:
- Check that \newline is not collapsed after #
-stdin:
- echo hi #there \
- echo folks
-expected-stdout:
- hi
- folks
----
-name: bksl-nl-ign-2
-description:
- Check that \newline is not collapsed inside single quotes
-stdin:
- echo 'hi \
- there'
- echo folks
-expected-stdout:
- hi \
- there
- folks
----
-name: bksl-nl-ign-3
-description:
- Check that \newline is not collapsed inside single quotes
-stdin:
- cat << \EOF
- hi \
- there
- EOF
-expected-stdout:
- hi \
- there
----
-name: bksl-nl-ign-4
-description:
- Check interaction of aliases, single quotes and here-documents
- with backslash-newline
- (don't know what POSIX has to say about this)
-stdin:
- a=2
- alias x='echo hi
- cat << "EOF"
- foo\
- bar
- some'
- x
- more\
- stuff$a
- EOF
-expected-stdout:
- hi
- foo\
- bar
- some
- more\
- stuff$a
----
-name: bksl-nl-ign-5
-description:
- Check what happens with backslash at end of input
- (the old Bourne shell trashes them; so do we)
-stdin: !
- echo `echo foo\\`bar
- echo hi\
-expected-stdout:
- foobar
- hi
----
-#
-# Places \newline should be collapsed
-#
-name: bksl-nl-1
-description:
- Check that \newline is collapsed before, in the middle of, and
- after words
-stdin:
- \
- echo hi\
- There, \
- folks
-expected-stdout:
- hiThere, folks
----
-name: bksl-nl-2
-description:
- Check that \newline is collapsed in $ sequences
- (ksh93 fails this)
-stdin:
- a=12
- ab=19
- echo $\
- a
- echo $a\
- b
- echo $\
- {a}
- echo ${a\
- b}
- echo ${ab\
- }
-expected-stdout:
- 12
- 19
- 12
- 19
- 19
----
-name: bksl-nl-3
-description:
- Check that \newline is collapsed in $(..) and `...` sequences
- (ksh93 fails this)
-stdin:
- echo $\
- (echo foobar1)
- echo $(\
- echo foobar2)
- echo $(echo foo\
- bar3)
- echo $(echo foobar4\
- )
- echo `
- echo stuff1`
- echo `echo st\
- uff2`
-expected-stdout:
- foobar1
- foobar2
- foobar3
- foobar4
- stuff1
- stuff2
----
-name: bksl-nl-4
-description:
- Check that \newline is collapsed in $((..)) sequences
- (ksh93 fails this)
-stdin:
- echo $\
- ((1+2))
- echo $(\
- (1+2+3))
- echo $((\
- 1+2+3+4))
- echo $((1+\
- 2+3+4+5))
- echo $((1+2+3+4+5+6)\
- )
-expected-stdout:
- 3
- 6
- 10
- 15
- 21
----
-name: bksl-nl-5
-description:
- Check that \newline is collapsed in double quoted strings
-stdin:
- echo "\
- hi"
- echo "foo\
- bar"
- echo "folks\
- "
-expected-stdout:
- hi
- foobar
- folks
----
-name: bksl-nl-6
-description:
- Check that \newline is collapsed in here document delimiters
- (ksh93 fails second part of this)
-stdin:
- a=12
- cat << EO\
- F
- a=$a
- foo\
- bar
- EOF
- cat << E_O_F
- foo
- E_O_\
- F
- echo done
-expected-stdout:
- a=12
- foobar
- foo
- done
----
-name: bksl-nl-7
-description:
- Check that \newline is collapsed in double-quoted here-document
- delimiter.
-stdin:
- a=12
- cat << "EO\
- F"
- a=$a
- foo\
- bar
- EOF
- echo done
-expected-stdout:
- a=$a
- foo\
- bar
- done
----
-name: bksl-nl-8
-description:
- Check that \newline is collapsed in various 2+ character tokens
- delimiter.
- (ksh93 fails this)
-stdin:
- echo hi &\
- & echo there
- echo foo |\
- | echo bar
- cat <\
- < EOF
- stuff
- EOF
- cat <\
- <\
- - EOF
- more stuff
- EOF
- cat <<\
- EOF
- abcdef
- EOF
- echo hi >\
- > /dev/null
- echo $?
- i=1
- case $i in
- (\
- x|\
- 1\
- ) echo hi;\
- ;
- (*) echo oops
- esac
-expected-stdout:
- hi
- there
- foo
- stuff
- more stuff
- abcdef
- 0
- hi
----
-name: bksl-nl-9
-description:
- Check that \ at the end of an alias is collapsed when followed
- by a newline
- (don't know what POSIX has to say about this)
-stdin:
- alias x='echo hi\'
- x
- echo there
-expected-stdout:
- hiecho there
----
-name: bksl-nl-10
-description:
- Check that \newline in a keyword is collapsed
-stdin:
- i\
- f true; then\
- echo pass; el\
- se echo fail; fi
-expected-stdout:
- pass
----
-#
-# Places \newline should be collapsed (ksh extensions)
-#
-name: bksl-nl-ksh-1
-description:
- Check that \newline is collapsed in extended globbing
- (ksh93 fails this)
-stdin:
- xxx=foo
- case $xxx in
- (f*\
- (\
- o\
- )\
- ) echo ok ;;
- *) echo bad
- esac
-expected-stdout:
- ok
----
-name: bksl-nl-ksh-2
-description:
- Check that \newline is collapsed in ((...)) expressions
- (ksh93 fails this)
-stdin:
- i=1
- (\
- (\
- i=i+2\
- )\
- )
- echo $i
-expected-stdout:
- 3
----
-name: break-1
-description:
- See if break breaks out of loops
-stdin:
- for i in a b c; do echo $i; break; echo bad-$i; done
- echo end-1
- for i in a b c; do echo $i; break 1; echo bad-$i; done
- echo end-2
- for i in a b c; do
- for j in x y z; do
- echo $i:$j
- break
- echo bad-$i
- done
- echo end-$i
- done
- echo end-3
-expected-stdout:
- a
- end-1
- a
- end-2
- a:x
- end-a
- b:x
- end-b
- c:x
- end-c
- end-3
----
-name: break-2
-description:
- See if break breaks out of nested loops
-stdin:
- for i in a b c; do
- for j in x y z; do
- echo $i:$j
- break 2
- echo bad-$i
- done
- echo end-$i
- done
- echo end
-expected-stdout:
- a:x
- end
----
-name: break-3
-description:
- What if break used outside of any loops
- (ksh88,ksh93 don't print error messages here)
-stdin:
- break
-expected-stderr-pattern:
- /.*break.*/
----
-name: break-4
-description:
- What if break N used when only N-1 loops
- (ksh88,ksh93 don't print error messages here)
-stdin:
- for i in a b c; do echo $i; break 2; echo bad-$i; done
- echo end
-expected-stdout:
- a
- end
-expected-stderr-pattern:
- /.*break.*/
----
-name: break-5
-description:
- Error if break argument isn't a number
-stdin:
- for i in a b c; do echo $i; break abc; echo more-$i; done
- echo end
-expected-stdout:
- a
-expected-exit: e != 0
-expected-stderr-pattern:
- /.*break.*/
----
-name: continue-1
-description:
- See if continue continues loops
-stdin:
- for i in a b c; do echo $i; continue; echo bad-$i ; done
- echo end-1
- for i in a b c; do echo $i; continue 1; echo bad-$i; done
- echo end-2
- for i in a b c; do
- for j in x y z; do
- echo $i:$j
- continue
- echo bad-$i-$j
- done
- echo end-$i
- done
- echo end-3
-expected-stdout:
- a
- b
- c
- end-1
- a
- b
- c
- end-2
- a:x
- a:y
- a:z
- end-a
- b:x
- b:y
- b:z
- end-b
- c:x
- c:y
- c:z
- end-c
- end-3
----
-name: continue-2
-description:
- See if continue breaks out of nested loops
-stdin:
- for i in a b c; do
- for j in x y z; do
- echo $i:$j
- continue 2
- echo bad-$i-$j
- done
- echo end-$i
- done
- echo end
-expected-stdout:
- a:x
- b:x
- c:x
- end
----
-name: continue-3
-description:
- What if continue used outside of any loops
- (ksh88,ksh93 don't print error messages here)
-stdin:
- continue
-expected-stderr-pattern:
- /.*continue.*/
----
-name: continue-4
-description:
- What if continue N used when only N-1 loops
- (ksh88,ksh93 don't print error messages here)
-stdin:
- for i in a b c; do echo $i; continue 2; echo bad-$i; done
- echo end
-expected-stdout:
- a
- b
- c
- end
-expected-stderr-pattern:
- /.*continue.*/
----
-name: continue-5
-description:
- Error if continue argument isn't a number
-stdin:
- for i in a b c; do echo $i; continue abc; echo more-$i; done
- echo end
-expected-stdout:
- a
-expected-exit: e != 0
-expected-stderr-pattern:
- /.*continue.*/
----
-name: cd-history
-description:
- Test someone's CD history package (uses arrays)
-stdin:
- # go to known place before doing anything
- cd /
-
- alias cd=_cd
- function _cd
- {
- typeset -i cdlen i
- typeset t
-
- if [ $# -eq 0 ]
- then
- set -- $HOME
- fi
-
- if [ "$CDHISTFILE" -a -r "$CDHISTFILE" ] # if directory history exists
- then
- typeset CDHIST
- i=-1
- while read -r t # read directory history file
- do
- CDHIST[i=i+1]=$t
- done <$CDHISTFILE
- fi
-
- if [ "${CDHIST[0]}" != "$PWD" -a "$PWD" != "" ]
- then
- _cdins # insert $PWD into cd history
- fi
-
- cdlen=${#CDHIST[*]} # number of elements in history
-
- case "$@" in
- -) # cd to new dir
- if [ "$OLDPWD" = "" ] && ((cdlen>1))
- then
- 'print' ${CDHIST[1]}
- 'cd' ${CDHIST[1]}
- _pwd
- else
- 'cd' $@
- _pwd
- fi
- ;;
- -l) # print directory list
- typeset -R3 num
- ((i=cdlen))
- while (((i=i-1)>=0))
- do
- num=$i
- 'print' "$num ${CDHIST[i]}"
- done
- return
- ;;
- -[0-9]|-[0-9][0-9]) # cd to dir in list
- if (((i=${1#-})<cdlen))
- then
- 'print' ${CDHIST[i]}
- 'cd' ${CDHIST[i]}
- _pwd
- else
- 'cd' $@
- _pwd
- fi
- ;;
- -*) # cd to matched dir in list
- t=${1#-}
- i=1
- while ((i<cdlen))
- do
- case ${CDHIST[i]} in
- *$t*)
- 'print' ${CDHIST[i]}
- 'cd' ${CDHIST[i]}
- _pwd
- break
- ;;
- esac
- ((i=i+1))
- done
- if ((i>=cdlen))
- then
- 'cd' $@
- _pwd
- fi
- ;;
- *) # cd to new dir
- 'cd' $@
- _pwd
- ;;
- esac
-
- _cdins # insert $PWD into cd history
-
- if [ "$CDHISTFILE" ]
- then
- cdlen=${#CDHIST[*]} # number of elements in history
-
- i=0
- while ((i<cdlen))
- do
- 'print' -r ${CDHIST[i]} # update directory history
- ((i=i+1))
- done >$CDHISTFILE
- fi
- }
-
- function _cdins # insert $PWD into cd history
- { # meant to be called only by _cd
- typeset -i i
-
- ((i=0))
- while ((i<${#CDHIST[*]})) # see if dir is already in list
- do
- if [ "${CDHIST[$i]}" = "$PWD" ]
- then
- break
- fi
- ((i=i+1))
- done
-
- if ((i>22)) # limit max size of list
- then
- i=22
- fi
-
- while (((i=i-1)>=0)) # bump old dirs in list
- do
- CDHIST[i+1]=${CDHIST[i]}
- done
-
- CDHIST[0]=$PWD # insert new directory in list
- }
-
-
- function _pwd
- {
- if [ -n "$ECD" ]
- then
- pwd 1>&6
- fi
- }
- # Start of test
- cd /tmp
- cd /bin
- cd /etc
- cd -
- cd -2
- cd -l
-expected-stdout:
- /bin
- /tmp
- 3 /
- 2 /etc
- 1 /bin
- 0 /tmp
----
-name: cd-pe
-description:
- Check package for cd -Pe
-need-pass: no
-# the mv command fails on Cygwin
-# Hurd aborts the testsuite (permission denied)
-# QNX does not find subdir to cd into
-category: !os:cygwin,!os:gnu,!os:msys,!os:nto,!nosymlink
-file-setup: file 644 "x"
- mkdir noread noread/target noread/target/subdir
- ln -s noread link
- chmod 311 noread
- cd -P$1 .
- echo 0=$?
- bwd=$PWD
- cd -P$1 link/target
- echo 1=$?,${PWD#$bwd/}
- epwd=$($TSHELL -c pwd 2>/dev/null)
- # This unexpectedly succeeds on GNU/Linux and MidnightBSD
- #echo pwd=$?,$epwd
- # expect: pwd=1,
- mv ../../noread ../../renamed
- cd -P$1 subdir
- echo 2=$?,${PWD#$bwd/}
- cd $bwd
- chmod 755 renamed
- rm -rf noread link renamed
-stdin:
- export TSHELL="$__progname"
- "$__progname" x
- echo "now with -e:"
- "$__progname" x e
-expected-stdout:
- 0=0
- 1=0,noread/target
- 2=0,noread/target/subdir
- now with -e:
- 0=0
- 1=0,noread/target
- 2=1,noread/target/subdir
----
-name: env-prompt
-description:
- Check that prompt not printed when processing ENV
-env-setup: !ENV=./foo!
-file-setup: file 644 "foo"
- XXX=_
- PS1=X
- false && echo hmmm
-need-ctty: yes
-arguments: !-i!
-stdin:
- echo hi${XXX}there
-expected-stdout:
- hi_there
-expected-stderr: !
- XX
----
-name: expand-ugly
-description:
- Check that weird ${foo+bar} constructs are parsed correctly
-stdin:
- print '#!'"$__progname"'\nfor x in "$@"; do print -r -- "$x"; done' >pfn
- print '#!'"$__progname"'\nfor x in "$@"; do print -nr -- "<$x> "; done' >pfs
- chmod +x pfn pfs
- (echo 1 ${IFS+'}'z}) 2>/dev/null || echo failed in 1
- (echo 2 "${IFS+'}'z}") 2>/dev/null || echo failed in 2
- (echo 3 "foo ${IFS+'bar} baz") 2>/dev/null || echo failed in 3
- (echo -n '4 '; ./pfn "foo ${IFS+"b c"} baz") 2>/dev/null || echo failed in 4
- (echo -n '5 '; ./pfn "foo ${IFS+b c} baz") 2>/dev/null || echo failed in 5
- (echo 6 ${IFS+"}"z}) 2>/dev/null || echo failed in 6
- (echo 7 "${IFS+"}"z}") 2>/dev/null || echo failed in 7
- (echo 8 "${IFS+\"}\"z}") 2>/dev/null || echo failed in 8
- (echo 9 "${IFS+\"\}\"z}") 2>/dev/null || echo failed in 9
- (echo 10 foo ${IFS+'bar} baz'}) 2>/dev/null || echo failed in 10
- (echo 11 "$(echo "${IFS+'}'z}")") 2>/dev/null || echo failed in 11
- (echo 12 "$(echo ${IFS+'}'z})") 2>/dev/null || echo failed in 12
- (echo 13 ${IFS+\}z}) 2>/dev/null || echo failed in 13
- (echo 14 "${IFS+\}z}") 2>/dev/null || echo failed in 14
- u=x; (echo -n '15 '; ./pfs "foo ${IFS+a"b$u{ {"{{\}b} c ${IFS+d{}} bar" ${IFS-e{}} baz; echo .) 2>/dev/null || echo failed in 15
- l=t; (echo 16 ${IFS+h`echo -n i ${IFS+$l}h`ere}) 2>/dev/null || echo failed in 16
- l=t; (echo 17 ${IFS+h$(echo -n i ${IFS+$l}h)ere}) 2>/dev/null || echo failed in 17
- l=t; (echo 18 "${IFS+h`echo -n i ${IFS+$l}h`ere}") 2>/dev/null || echo failed in 18
- l=t; (echo 19 "${IFS+h$(echo -n i ${IFS+$l}h)ere}") 2>/dev/null || echo failed in 19
- l=t; (echo 20 ${IFS+h`echo -n i "${IFS+$l}"h`ere}) 2>/dev/null || echo failed in 20
- l=t; (echo 21 ${IFS+h$(echo -n i "${IFS+$l}"h)ere}) 2>/dev/null || echo failed in 21
- l=t; (echo 22 "${IFS+h`echo -n i "${IFS+$l}"h`ere}") 2>/dev/null || echo failed in 22
- l=t; (echo 23 "${IFS+h$(echo -n i "${IFS+$l}"h)ere}") 2>/dev/null || echo failed in 23
- key=value; (echo -n '24 '; ./pfn "${IFS+'$key'}") 2>/dev/null || echo failed in 24
- key=value; (echo -n '25 '; ./pfn "${IFS+"'$key'"}") 2>/dev/null || echo failed in 25 # ksh93: “'$key'”
- key=value; (echo -n '26 '; ./pfn ${IFS+'$key'}) 2>/dev/null || echo failed in 26
- key=value; (echo -n '27 '; ./pfn ${IFS+"'$key'"}) 2>/dev/null || echo failed in 27
- (echo -n '28 '; ./pfn "${IFS+"'"x ~ x'}'x"'}"x}" #') 2>/dev/null || echo failed in 28
- u=x; (echo -n '29 '; ./pfs foo ${IFS+a"b$u{ {"{ {\}b} c ${IFS+d{}} bar ${IFS-e{}} baz; echo .) 2>/dev/null || echo failed in 29
- (echo -n '30 '; ./pfs ${IFS+foo 'b\
- ar' baz}; echo .) 2>/dev/null || (echo failed in 30; echo failed in 31)
- (echo -n '32 '; ./pfs ${IFS+foo "b\
- ar" baz}; echo .) 2>/dev/null || echo failed in 32
- (echo -n '33 '; ./pfs "${IFS+foo 'b\
- ar' baz}"; echo .) 2>/dev/null || echo failed in 33
- (echo -n '34 '; ./pfs "${IFS+foo "b\
- ar" baz}"; echo .) 2>/dev/null || echo failed in 34
- (echo -n '35 '; ./pfs ${v=a\ b} x ${v=c\ d}; echo .) 2>/dev/null || echo failed in 35
- (echo -n '36 '; ./pfs "${v=a\ b}" x "${v=c\ d}"; echo .) 2>/dev/null || echo failed in 36
- (echo -n '37 '; ./pfs ${v-a\ b} x ${v-c\ d}; echo .) 2>/dev/null || echo failed in 37
- (echo 38 ${IFS+x'a'y} / "${IFS+x'a'y}" .) 2>/dev/null || echo failed in 38
- foo="x'a'y"; (echo 39 ${foo%*'a'*} / "${foo%*'a'*}" .) 2>/dev/null || echo failed in 39
- foo="a b c"; (echo -n '40 '; ./pfs "${foo#a}"; echo .) 2>/dev/null || echo failed in 40
-expected-stdout:
- 1 }z
- 2 ''z}
- 3 foo 'bar baz
- 4 foo b c baz
- 5 foo b c baz
- 6 }z
- 7 }z
- 8 ""z}
- 9 "}"z
- 10 foo bar} baz
- 11 ''z}
- 12 }z
- 13 }z
- 14 }z
- 15 <foo abx{ {{{}b c d{} bar> <}> <baz> .
- 16 hi there
- 17 hi there
- 18 hi there
- 19 hi there
- 20 hi there
- 21 hi there
- 22 hi there
- 23 hi there
- 24 'value'
- 25 'value'
- 26 $key
- 27 'value'
- 28 'x ~ x''x}"x}" #
- 29 <foo> <abx{ {{> <{}b> <c> <d{}> <bar> <}> <baz> .
- 30 <foo> <b\
- ar> <baz> .
- 32 <foo> <bar> <baz> .
- 33 <foo 'bar' baz> .
- 34 <foo bar baz> .
- 35 <a> <b> <x> <a> <b> .
- 36 <a\ b> <x> <a\ b> .
- 37 <a b> <x> <c d> .
- 38 xay / x'a'y .
- 39 x' / x' .
- 40 < b c> .
----
-name: expand-unglob-dblq
-description:
- Check that regular "${foo+bar}" constructs are parsed correctly
-stdin:
- u=x
- tl_norm() {
- v=$2
- test x"$v" = x"-" && unset v
- (echo "$1 plus norm foo ${v+'bar'} baz")
- (echo "$1 dash norm foo ${v-'bar'} baz")
- (echo "$1 eqal norm foo ${v='bar'} baz")
- (echo "$1 qstn norm foo ${v?'bar'} baz") 2>/dev/null || \
- echo "$1 qstn norm -> error"
- (echo "$1 PLUS norm foo ${v:+'bar'} baz")
- (echo "$1 DASH norm foo ${v:-'bar'} baz")
- (echo "$1 EQAL norm foo ${v:='bar'} baz")
- (echo "$1 QSTN norm foo ${v:?'bar'} baz") 2>/dev/null || \
- echo "$1 QSTN norm -> error"
- }
- tl_paren() {
- v=$2
- test x"$v" = x"-" && unset v
- (echo "$1 plus parn foo ${v+(bar)} baz")
- (echo "$1 dash parn foo ${v-(bar)} baz")
- (echo "$1 eqal parn foo ${v=(bar)} baz")
- (echo "$1 qstn parn foo ${v?(bar)} baz") 2>/dev/null || \
- echo "$1 qstn parn -> error"
- (echo "$1 PLUS parn foo ${v:+(bar)} baz")
- (echo "$1 DASH parn foo ${v:-(bar)} baz")
- (echo "$1 EQAL parn foo ${v:=(bar)} baz")
- (echo "$1 QSTN parn foo ${v:?(bar)} baz") 2>/dev/null || \
- echo "$1 QSTN parn -> error"
- }
- tl_brace() {
- v=$2
- test x"$v" = x"-" && unset v
- (echo "$1 plus brac foo ${v+a$u{{{\}b} c ${v+d{}} baz")
- (echo "$1 dash brac foo ${v-a$u{{{\}b} c ${v-d{}} baz")
- (echo "$1 eqal brac foo ${v=a$u{{{\}b} c ${v=d{}} baz")
- (echo "$1 qstn brac foo ${v?a$u{{{\}b} c ${v?d{}} baz") 2>/dev/null || \
- echo "$1 qstn brac -> error"
- (echo "$1 PLUS brac foo ${v:+a$u{{{\}b} c ${v:+d{}} baz")
- (echo "$1 DASH brac foo ${v:-a$u{{{\}b} c ${v:-d{}} baz")
- (echo "$1 EQAL brac foo ${v:=a$u{{{\}b} c ${v:=d{}} baz")
- (echo "$1 QSTN brac foo ${v:?a$u{{{\}b} c ${v:?d{}} baz") 2>/dev/null || \
- echo "$1 QSTN brac -> error"
- }
- tl_norm 1 -
- tl_norm 2 ''
- tl_norm 3 x
- tl_paren 4 -
- tl_paren 5 ''
- tl_paren 6 x
- tl_brace 7 -
- tl_brace 8 ''
- tl_brace 9 x
-expected-stdout:
- 1 plus norm foo baz
- 1 dash norm foo 'bar' baz
- 1 eqal norm foo 'bar' baz
- 1 qstn norm -> error
- 1 PLUS norm foo baz
- 1 DASH norm foo 'bar' baz
- 1 EQAL norm foo 'bar' baz
- 1 QSTN norm -> error
- 2 plus norm foo 'bar' baz
- 2 dash norm foo baz
- 2 eqal norm foo baz
- 2 qstn norm foo baz
- 2 PLUS norm foo baz
- 2 DASH norm foo 'bar' baz
- 2 EQAL norm foo 'bar' baz
- 2 QSTN norm -> error
- 3 plus norm foo 'bar' baz
- 3 dash norm foo x baz
- 3 eqal norm foo x baz
- 3 qstn norm foo x baz
- 3 PLUS norm foo 'bar' baz
- 3 DASH norm foo x baz
- 3 EQAL norm foo x baz
- 3 QSTN norm foo x baz
- 4 plus parn foo baz
- 4 dash parn foo (bar) baz
- 4 eqal parn foo (bar) baz
- 4 qstn parn -> error
- 4 PLUS parn foo baz
- 4 DASH parn foo (bar) baz
- 4 EQAL parn foo (bar) baz
- 4 QSTN parn -> error
- 5 plus parn foo (bar) baz
- 5 dash parn foo baz
- 5 eqal parn foo baz
- 5 qstn parn foo baz
- 5 PLUS parn foo baz
- 5 DASH parn foo (bar) baz
- 5 EQAL parn foo (bar) baz
- 5 QSTN parn -> error
- 6 plus parn foo (bar) baz
- 6 dash parn foo x baz
- 6 eqal parn foo x baz
- 6 qstn parn foo x baz
- 6 PLUS parn foo (bar) baz
- 6 DASH parn foo x baz
- 6 EQAL parn foo x baz
- 6 QSTN parn foo x baz
- 7 plus brac foo c } baz
- 7 dash brac foo ax{{{}b c d{} baz
- 7 eqal brac foo ax{{{}b c ax{{{}b} baz
- 7 qstn brac -> error
- 7 PLUS brac foo c } baz
- 7 DASH brac foo ax{{{}b c d{} baz
- 7 EQAL brac foo ax{{{}b c ax{{{}b} baz
- 7 QSTN brac -> error
- 8 plus brac foo ax{{{}b c d{} baz
- 8 dash brac foo c } baz
- 8 eqal brac foo c } baz
- 8 qstn brac foo c } baz
- 8 PLUS brac foo c } baz
- 8 DASH brac foo ax{{{}b c d{} baz
- 8 EQAL brac foo ax{{{}b c ax{{{}b} baz
- 8 QSTN brac -> error
- 9 plus brac foo ax{{{}b c d{} baz
- 9 dash brac foo x c x} baz
- 9 eqal brac foo x c x} baz
- 9 qstn brac foo x c x} baz
- 9 PLUS brac foo ax{{{}b c d{} baz
- 9 DASH brac foo x c x} baz
- 9 EQAL brac foo x c x} baz
- 9 QSTN brac foo x c x} baz
----
-name: expand-unglob-unq
-description:
- Check that regular ${foo+bar} constructs are parsed correctly
-stdin:
- u=x
- tl_norm() {
- v=$2
- test x"$v" = x"-" && unset v
- (echo $1 plus norm foo ${v+'bar'} baz)
- (echo $1 dash norm foo ${v-'bar'} baz)
- (echo $1 eqal norm foo ${v='bar'} baz)
- (echo $1 qstn norm foo ${v?'bar'} baz) 2>/dev/null || \
- echo "$1 qstn norm -> error"
- (echo $1 PLUS norm foo ${v:+'bar'} baz)
- (echo $1 DASH norm foo ${v:-'bar'} baz)
- (echo $1 EQAL norm foo ${v:='bar'} baz)
- (echo $1 QSTN norm foo ${v:?'bar'} baz) 2>/dev/null || \
- echo "$1 QSTN norm -> error"
- }
- tl_paren() {
- v=$2
- test x"$v" = x"-" && unset v
- (echo $1 plus parn foo ${v+\(bar')'} baz)
- (echo $1 dash parn foo ${v-\(bar')'} baz)
- (echo $1 eqal parn foo ${v=\(bar')'} baz)
- (echo $1 qstn parn foo ${v?\(bar')'} baz) 2>/dev/null || \
- echo "$1 qstn parn -> error"
- (echo $1 PLUS parn foo ${v:+\(bar')'} baz)
- (echo $1 DASH parn foo ${v:-\(bar')'} baz)
- (echo $1 EQAL parn foo ${v:=\(bar')'} baz)
- (echo $1 QSTN parn foo ${v:?\(bar')'} baz) 2>/dev/null || \
- echo "$1 QSTN parn -> error"
- }
- tl_brace() {
- v=$2
- test x"$v" = x"-" && unset v
- (echo $1 plus brac foo ${v+a$u{{{\}b} c ${v+d{}} baz)
- (echo $1 dash brac foo ${v-a$u{{{\}b} c ${v-d{}} baz)
- (echo $1 eqal brac foo ${v=a$u{{{\}b} c ${v=d{}} baz)
- (echo $1 qstn brac foo ${v?a$u{{{\}b} c ${v?d{}} baz) 2>/dev/null || \
- echo "$1 qstn brac -> error"
- (echo $1 PLUS brac foo ${v:+a$u{{{\}b} c ${v:+d{}} baz)
- (echo $1 DASH brac foo ${v:-a$u{{{\}b} c ${v:-d{}} baz)
- (echo $1 EQAL brac foo ${v:=a$u{{{\}b} c ${v:=d{}} baz)
- (echo $1 QSTN brac foo ${v:?a$u{{{\}b} c ${v:?d{}} baz) 2>/dev/null || \
- echo "$1 QSTN brac -> error"
- }
- tl_norm 1 -
- tl_norm 2 ''
- tl_norm 3 x
- tl_paren 4 -
- tl_paren 5 ''
- tl_paren 6 x
- tl_brace 7 -
- tl_brace 8 ''
- tl_brace 9 x
-expected-stdout:
- 1 plus norm foo baz
- 1 dash norm foo bar baz
- 1 eqal norm foo bar baz
- 1 qstn norm -> error
- 1 PLUS norm foo baz
- 1 DASH norm foo bar baz
- 1 EQAL norm foo bar baz
- 1 QSTN norm -> error
- 2 plus norm foo bar baz
- 2 dash norm foo baz
- 2 eqal norm foo baz
- 2 qstn norm foo baz
- 2 PLUS norm foo baz
- 2 DASH norm foo bar baz
- 2 EQAL norm foo bar baz
- 2 QSTN norm -> error
- 3 plus norm foo bar baz
- 3 dash norm foo x baz
- 3 eqal norm foo x baz
- 3 qstn norm foo x baz
- 3 PLUS norm foo bar baz
- 3 DASH norm foo x baz
- 3 EQAL norm foo x baz
- 3 QSTN norm foo x baz
- 4 plus parn foo baz
- 4 dash parn foo (bar) baz
- 4 eqal parn foo (bar) baz
- 4 qstn parn -> error
- 4 PLUS parn foo baz
- 4 DASH parn foo (bar) baz
- 4 EQAL parn foo (bar) baz
- 4 QSTN parn -> error
- 5 plus parn foo (bar) baz
- 5 dash parn foo baz
- 5 eqal parn foo baz
- 5 qstn parn foo baz
- 5 PLUS parn foo baz
- 5 DASH parn foo (bar) baz
- 5 EQAL parn foo (bar) baz
- 5 QSTN parn -> error
- 6 plus parn foo (bar) baz
- 6 dash parn foo x baz
- 6 eqal parn foo x baz
- 6 qstn parn foo x baz
- 6 PLUS parn foo (bar) baz
- 6 DASH parn foo x baz
- 6 EQAL parn foo x baz
- 6 QSTN parn foo x baz
- 7 plus brac foo c } baz
- 7 dash brac foo ax{{{}b c d{} baz
- 7 eqal brac foo ax{{{}b c ax{{{}b} baz
- 7 qstn brac -> error
- 7 PLUS brac foo c } baz
- 7 DASH brac foo ax{{{}b c d{} baz
- 7 EQAL brac foo ax{{{}b c ax{{{}b} baz
- 7 QSTN brac -> error
- 8 plus brac foo ax{{{}b c d{} baz
- 8 dash brac foo c } baz
- 8 eqal brac foo c } baz
- 8 qstn brac foo c } baz
- 8 PLUS brac foo c } baz
- 8 DASH brac foo ax{{{}b c d{} baz
- 8 EQAL brac foo ax{{{}b c ax{{{}b} baz
- 8 QSTN brac -> error
- 9 plus brac foo ax{{{}b c d{} baz
- 9 dash brac foo x c x} baz
- 9 eqal brac foo x c x} baz
- 9 qstn brac foo x c x} baz
- 9 PLUS brac foo ax{{{}b c d{} baz
- 9 DASH brac foo x c x} baz
- 9 EQAL brac foo x c x} baz
- 9 QSTN brac foo x c x} baz
----
-name: expand-threecolons-dblq
-description:
- Check for a particular thing that used to segfault
-stdin:
- TEST=1234
- echo "${TEST:1:2:3}"
- echo $? but still living
-expected-stderr-pattern:
- /bad substitution/
-expected-exit: 1
----
-name: expand-threecolons-unq
-description:
- Check for a particular thing that used to not error out
-stdin:
- TEST=1234
- echo ${TEST:1:2:3}
- echo $? but still living
-expected-stderr-pattern:
- /bad substitution/
-expected-exit: 1
----
-name: expand-weird-1
-description:
- Check corner case of trim expansion vs. $# vs. ${#var}
-stdin:
- set 1 2 3 4 5 6 7 8 9 10 11
- echo ${#} # value of $#
- echo ${##} # length of $#
- echo ${##1} # $# trimmed 1
- set 1 2 3 4 5 6 7 8 9 10 11 12
- echo ${##1}
-expected-stdout:
- 11
- 2
- 1
- 2
----
-name: expand-weird-2
-description:
- Check corner case of ${var?} vs. ${#var}
-stdin:
- (exit 0)
- echo $? = ${#?} .
- (exit 111)
- echo $? = ${#?} .
-expected-stdout:
- 0 = 1 .
- 111 = 3 .
----
-name: expand-weird-3
-description:
- Check that trimming works with positional parameters (Debian #48453)
-stdin:
- A=9999-02
- B=9999
- echo 1=${A#$B?}.
- set -- $A $B
- echo 2=${1#$2?}.
-expected-stdout:
- 1=02.
- 2=02.
----
-name: eglob-bad-1
-description:
- Check that globbing isn't done when glob has syntax error
-file-setup: file 644 "abcx"
-file-setup: file 644 "abcz"
-file-setup: file 644 "bbc"
-stdin:
- echo !([*)*
- echo +(a|b[)*
-expected-stdout:
- !([*)*
- +(a|b[)*
----
-name: eglob-bad-2
-description:
- Check that globbing isn't done when glob has syntax error
- (AT&T ksh fails this test)
-file-setup: file 644 "abcx"
-file-setup: file 644 "abcz"
-file-setup: file 644 "bbc"
-stdin:
- echo [a*(]*)z
-expected-stdout:
- [a*(]*)z
----
-name: eglob-infinite-plus
-description:
- Check that shell doesn't go into infinite loop expanding +(...)
- expressions.
-file-setup: file 644 "abc"
-time-limit: 3
-stdin:
- echo +()c
- echo +()x
- echo +(*)c
- echo +(*)x
-expected-stdout:
- +()c
- +()x
- abc
- +(*)x
----
-name: eglob-subst-1
-description:
- Check that eglobbing isn't done on substitution results
-file-setup: file 644 "abc"
-stdin:
- x='@(*)'
- echo $x
-expected-stdout:
- @(*)
----
-name: eglob-nomatch-1
-description:
- Check that the pattern doesn't match
-stdin:
- echo 1: no-file+(a|b)stuff
- echo 2: no-file+(a*(c)|b)stuff
- echo 3: no-file+((((c)))|b)stuff
-expected-stdout:
- 1: no-file+(a|b)stuff
- 2: no-file+(a*(c)|b)stuff
- 3: no-file+((((c)))|b)stuff
----
-name: eglob-match-1
-description:
- Check that the pattern matches correctly
-file-setup: file 644 "abd"
-file-setup: file 644 "acd"
-file-setup: file 644 "abac"
-stdin:
- echo 1: a+(b|c)d
- echo 2: a!(@(b|B))d
- echo 3: *(a(b|c)) # (...|...) can be used within X(..)
- echo 4: a[b*(foo|bar)]d # patterns not special inside [...]
-expected-stdout:
- 1: abd acd
- 2: acd
- 3: abac
- 4: abd
----
-name: eglob-case-1
-description:
- Simple negation tests
-stdin:
- case foo in !(foo|bar)) echo yes;; *) echo no;; esac
- case bar in !(foo|bar)) echo yes;; *) echo no;; esac
-expected-stdout:
- no
- no
----
-name: eglob-case-2
-description:
- Simple kleene tests
-stdin:
- case foo in *(a|b[)) echo yes;; *) echo no;; esac
- case foo in *(a|b[)|f*) echo yes;; *) echo no;; esac
- case '*(a|b[)' in *(a|b[)) echo yes;; *) echo no;; esac
-expected-stdout:
- no
- yes
- yes
----
-name: eglob-trim-1
-description:
- Eglobbing in trim expressions...
- (AT&T ksh fails this - docs say # matches shortest string, ## matches
- longest...)
-stdin:
- x=abcdef
- echo 1: ${x#a|abc}
- echo 2: ${x##a|abc}
- echo 3: ${x%def|f}
- echo 4: ${x%%f|def}
-expected-stdout:
- 1: bcdef
- 2: def
- 3: abcde
- 4: abc
----
-name: eglob-trim-2
-description:
- Check eglobbing works in trims...
-stdin:
- x=abcdef
- echo 1: ${x#*(a|b)cd}
- echo 2: "${x#*(a|b)cd}"
- echo 3: ${x#"*(a|b)cd"}
- echo 4: ${x#a(b|c)}
-expected-stdout:
- 1: ef
- 2: ef
- 3: abcdef
- 4: cdef
----
-name: eglob-trim-3
-description:
- Check eglobbing works in trims, for Korn Shell
- Ensure eglobbing does not work for reduced-feature /bin/sh
-stdin:
- set +o sh
- x=foobar
- y=foobaz
- z=fooba\?
- echo "<${x%bar|baz},${y%bar|baz},${z%\?}>"
- echo "<${x%ba(r|z)},${y%ba(r|z)}>"
- set -o sh
- echo "<${x%bar|baz},${y%bar|baz},${z%\?}>"
- z='foo(bar'
- echo "<${z%(*}>"
-expected-stdout:
- <foo,foo,fooba>
- <foo,foo>
- <foobar,foobaz,fooba>
- <foo>
----
-name: eglob-substrpl-1
-description:
- Check eglobbing works in substs... and they work at all
-stdin:
- [[ -n $BASH_VERSION ]] && shopt -s extglob
- x=1222321_ab/cde_b/c_1221
- y=xyz
- echo 1: ${x/2}
- echo 2: ${x//2}
- echo 3: ${x/+(2)}
- echo 4: ${x//+(2)}
- echo 5: ${x/2/4}
- echo 6: ${x//2/4}
- echo 7: ${x/+(2)/4}
- echo 8: ${x//+(2)/4}
- echo 9: ${x/b/c/e/f}
- echo 10: ${x/b\/c/e/f}
- echo 11: ${x/b\/c/e\/f}
- echo 12: ${x/b\/c/e\\/f}
- echo 13: ${x/b\\/c/e\\/f}
- echo 14: ${x//b/c/e/f}
- echo 15: ${x//b\/c/e/f}
- echo 16: ${x//b\/c/e\/f}
- echo 17: ${x//b\/c/e\\/f}
- echo 18: ${x//b\\/c/e\\/f}
- echo 19: ${x/b\/*\/c/x}
- echo 20: ${x/\//.}
- echo 21: ${x//\//.}
- echo 22: ${x///.}
- echo 23: ${x//#1/9}
- echo 24: ${x//%1/9}
- echo 25: ${x//\%1/9}
- echo 26: ${x//\\%1/9}
- echo 27: ${x//\a/9}
- echo 28: ${x//\\a/9}
- echo 29: ${x/2/$y}
-expected-stdout:
- 1: 122321_ab/cde_b/c_1221
- 2: 131_ab/cde_b/c_11
- 3: 1321_ab/cde_b/c_1221
- 4: 131_ab/cde_b/c_11
- 5: 1422321_ab/cde_b/c_1221
- 6: 1444341_ab/cde_b/c_1441
- 7: 14321_ab/cde_b/c_1221
- 8: 14341_ab/cde_b/c_141
- 9: 1222321_ac/e/f/cde_b/c_1221
- 10: 1222321_ae/fde_b/c_1221
- 11: 1222321_ae/fde_b/c_1221
- 12: 1222321_ae\/fde_b/c_1221
- 13: 1222321_ab/cde_b/c_1221
- 14: 1222321_ac/e/f/cde_c/e/f/c_1221
- 15: 1222321_ae/fde_e/f_1221
- 16: 1222321_ae/fde_e/f_1221
- 17: 1222321_ae\/fde_e\/f_1221
- 18: 1222321_ab/cde_b/c_1221
- 19: 1222321_ax_1221
- 20: 1222321_ab.cde_b/c_1221
- 21: 1222321_ab.cde_b.c_1221
- 22: 1222321_ab/cde_b/c_1221
- 23: 9222321_ab/cde_b/c_1221
- 24: 1222321_ab/cde_b/c_1229
- 25: 1222321_ab/cde_b/c_1229
- 26: 1222321_ab/cde_b/c_1221
- 27: 1222321_9b/cde_b/c_1221
- 28: 1222321_9b/cde_b/c_1221
- 29: 1xyz22321_ab/cde_b/c_1221
----
-name: eglob-substrpl-2
-description:
- Check anchored substring replacement works, corner cases
-stdin:
- foo=123
- echo 1: ${foo/#/x}
- echo 2: ${foo/%/x}
- echo 3: ${foo/#/}
- echo 4: ${foo/#}
- echo 5: ${foo/%/}
- echo 6: ${foo/%}
-expected-stdout:
- 1: x123
- 2: 123x
- 3: 123
- 4: 123
- 5: 123
- 6: 123
----
-name: eglob-substrpl-3a
-description:
- Check substring replacement works with variables and slashes, too
-stdin:
- pfx=/home/user
- wd=/home/user/tmp
- echo "${wd/#$pfx/~}"
- echo "${wd/#\$pfx/~}"
- echo "${wd/#"$pfx"/~}"
- echo "${wd/#'$pfx'/~}"
- echo "${wd/#"\$pfx"/~}"
- echo "${wd/#'\$pfx'/~}"
-expected-stdout:
- ~/tmp
- /home/user/tmp
- ~/tmp
- /home/user/tmp
- /home/user/tmp
- /home/user/tmp
----
-name: eglob-substrpl-3b
-description:
- More of this, bash fails it (bash4 passes)
-stdin:
- pfx=/home/user
- wd=/home/user/tmp
- echo "${wd/#$(echo /home/user)/~}"
- echo "${wd/#"$(echo /home/user)"/~}"
- echo "${wd/#'$(echo /home/user)'/~}"
-expected-stdout:
- ~/tmp
- ~/tmp
- /home/user/tmp
----
-name: eglob-substrpl-3c
-description:
- Even more weird cases
-stdin:
- pfx=/home/user
- wd='$pfx/tmp'
- echo 1: ${wd/#$pfx/~}
- echo 2: ${wd/#\$pfx/~}
- echo 3: ${wd/#"$pfx"/~}
- echo 4: ${wd/#'$pfx'/~}
- echo 5: ${wd/#"\$pfx"/~}
- echo 6: ${wd/#'\$pfx'/~}
- ts='a/ba/b$tp$tp_a/b$tp_*(a/b)_*($tp)'
- tp=a/b
- tr=c/d
- [[ -n $BASH_VERSION ]] && shopt -s extglob
- echo 7: ${ts/a\/b/$tr}
- echo 8: ${ts/a\/b/\$tr}
- echo 9: ${ts/$tp/$tr}
- echo 10: ${ts/\$tp/$tr}
- echo 11: ${ts/\\$tp/$tr}
- echo 12: ${ts/$tp/c/d}
- echo 13: ${ts/$tp/c\/d}
- echo 14: ${ts/$tp/c\\/d}
- echo 15: ${ts/+(a\/b)/$tr}
- echo 16: ${ts/+(a\/b)/\$tr}
- echo 17: ${ts/+($tp)/$tr}
- echo 18: ${ts/+($tp)/c/d}
- echo 19: ${ts/+($tp)/c\/d}
- echo 25: ${ts//a\/b/$tr}
- echo 26: ${ts//a\/b/\$tr}
- echo 27: ${ts//$tp/$tr}
- echo 28: ${ts//$tp/c/d}
- echo 29: ${ts//$tp/c\/d}
- echo 30: ${ts//+(a\/b)/$tr}
- echo 31: ${ts//+(a\/b)/\$tr}
- echo 32: ${ts//+($tp)/$tr}
- echo 33: ${ts//+($tp)/c/d}
- echo 34: ${ts//+($tp)/c\/d}
- tp="+($tp)"
- echo 40: ${ts/$tp/$tr}
- echo 41: ${ts//$tp/$tr}
-expected-stdout:
- 1: $pfx/tmp
- 2: ~/tmp
- 3: $pfx/tmp
- 4: ~/tmp
- 5: ~/tmp
- 6: ~/tmp
- 7: c/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
- 8: $tra/b$tp$tp_a/b$tp_*(a/b)_*($tp)
- 9: c/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
- 10: a/ba/bc/d$tp_a/b$tp_*(a/b)_*($tp)
- 11: c/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
- 12: c/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
- 13: c/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
- 14: c\/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
- 15: c/d$tp$tp_a/b$tp_*(a/b)_*($tp)
- 16: $tr$tp$tp_a/b$tp_*(a/b)_*($tp)
- 17: c/d$tp$tp_a/b$tp_*(a/b)_*($tp)
- 18: c/d$tp$tp_a/b$tp_*(a/b)_*($tp)
- 19: c/d$tp$tp_a/b$tp_*(a/b)_*($tp)
- 25: c/dc/d$tp$tp_c/d$tp_*(c/d)_*($tp)
- 26: $tr$tr$tp$tp_$tr$tp_*($tr)_*($tp)
- 27: c/dc/d$tp$tp_c/d$tp_*(c/d)_*($tp)
- 28: c/dc/d$tp$tp_c/d$tp_*(c/d)_*($tp)
- 29: c/dc/d$tp$tp_c/d$tp_*(c/d)_*($tp)
- 30: c/d$tp$tp_c/d$tp_*(c/d)_*($tp)
- 31: $tr$tp$tp_$tr$tp_*($tr)_*($tp)
- 32: c/d$tp$tp_c/d$tp_*(c/d)_*($tp)
- 33: c/d$tp$tp_c/d$tp_*(c/d)_*($tp)
- 34: c/d$tp$tp_c/d$tp_*(c/d)_*($tp)
- 40: a/ba/b$tp$tp_a/b$tp_*(a/b)_*($tp)
- 41: a/ba/b$tp$tp_a/b$tp_*(a/b)_*($tp)
-# This is what GNU bash does:
-# 40: c/d$tp$tp_a/b$tp_*(a/b)_*($tp)
-# 41: c/d$tp$tp_c/d$tp_*(c/d)_*($tp)
----
-name: eglob-utf8-1
-description:
- UTF-8 mode differences for eglobbing
-stdin:
- s=blöd
- set +U
- print 1: ${s%???} .
- print 2: ${s/b???d/x} .
- set -U
- print 3: ${s%???} .
- print 4: ${s/b??d/x} .
- x=nö
- print 5: ${x%?} ${x%%?} .
- x=äh
- print 6: ${x#?} ${x##?} .
- x=\x81\x82
- print 7: ${x%?} ${x%%?} .
- x=mä\x80
- print 8: ${x%?} ${x%%?} .
- x=何
- print 9: ${x%?} ${x%%?} .
-expected-stdout:
- 1: bl .
- 2: x .
- 3: b .
- 4: x .
- 5: n n .
- 6: h h .
- 7: \x81 \x81 .
- 8: mä mä .
- 9: .
----
-name: glob-bad-1
-description:
- Check that globbing isn't done when glob has syntax error
-file-setup: dir 755 "[x"
-file-setup: file 644 "[x/foo"
-stdin:
- echo [*
- echo *[x
- echo [x/*
-expected-stdout:
- [*
- *[x
- [x/foo
----
-name: glob-bad-2
-description:
- Check that symbolic links aren't stat()'d
-# breaks on FreeMiNT (cannot unlink dangling symlinks)
-# breaks on MSYS (does not support symlinks)
-# breaks on Dell UNIX 4.0 R2.2 (SVR4) where unlink also fails
-category: !os:mint,!os:msys,!os:svr4.0,!nosymlink
-file-setup: dir 755 "dir"
-file-setup: symlink 644 "dir/abc"
- non-existent-file
-stdin:
- echo d*/*
- echo d*/abc
-expected-stdout:
- dir/abc
- dir/abc
----
-name: glob-range-1
-description:
- Test range matching
-file-setup: file 644 ".bc"
-file-setup: file 644 "abc"
-file-setup: file 644 "bbc"
-file-setup: file 644 "cbc"
-file-setup: file 644 "-bc"
-stdin:
- echo [ab-]*
- echo [-ab]*
- echo [!-ab]*
- echo [!ab]*
- echo []ab]*
-expected-stdout:
- -bc abc bbc
- -bc abc bbc
- cbc
- -bc cbc
- abc bbc
----
-name: glob-range-2
-description:
- Test range matching
- (AT&T ksh fails this; POSIX says invalid)
-file-setup: file 644 "abc"
-stdin:
- echo [a--]*
-expected-stdout:
- [a--]*
----
-name: glob-range-3
-description:
- Check that globbing matches the right things...
-# breaks on Mac OSX (HFS+ non-standard Unicode canonical decomposition)
-# breaks on Cygwin 1.7 (files are now UTF-16 or something)
-# breaks on QNX 6.4.1 (says RT)
-category: !os:cygwin,!os:darwin,!os:msys,!os:nto
-need-pass: no
-file-setup: file 644 "a\xC2c"
-stdin:
- echo a[\xC1-\xDA]*
-expected-stdout:
- a\xC2c
----
-name: glob-range-4
-description:
- Results unspecified according to POSIX
-file-setup: file 644 ".bc"
-stdin:
- echo [a.]*
-expected-stdout:
- [a.]*
----
-name: glob-range-5
-description:
- Results unspecified according to POSIX
- (AT&T ksh treats this like [a-cc-e]*)
-file-setup: file 644 "abc"
-file-setup: file 644 "bbc"
-file-setup: file 644 "cbc"
-file-setup: file 644 "dbc"
-file-setup: file 644 "ebc"
-file-setup: file 644 "-bc"
-stdin:
- echo [a-c-e]*
-expected-stdout:
- -bc abc bbc cbc ebc
----
-name: heredoc-1
-description:
- Check ordering/content of redundent here documents.
-stdin:
- cat << EOF1 << EOF2
- hi
- EOF1
- there
- EOF2
-expected-stdout:
- there
----
-name: heredoc-2
-description:
- Check quoted here-doc is protected.
-stdin:
- a=foo
- cat << 'EOF'
- hi\
- there$a
- stuff
- EO\
- F
- EOF
-expected-stdout:
- hi\
- there$a
- stuff
- EO\
- F
----
-name: heredoc-3
-description:
- Check that newline isn't needed after heredoc-delimiter marker.
-stdin: !
- cat << EOF
- hi
- there
- EOF
-expected-stdout:
- hi
- there
----
-name: heredoc-4
-description:
- Check that an error occurs if the heredoc-delimiter is missing.
-stdin: !
- cat << EOF
- hi
- there
-expected-exit: e > 0
-expected-stderr-pattern: /.*/
----
-name: heredoc-5
-description:
- Check that backslash quotes a $, ` and \ and kills a \newline
-stdin:
- a=BAD
- b=ok
- cat << EOF
- h\${a}i
- h\\${b}i
- th\`echo not-run\`ere
- th\\`echo is-run`ere
- fol\\ks
- more\\
- last \
- line
- EOF
-expected-stdout:
- h${a}i
- h\oki
- th`echo not-run`ere
- th\is-runere
- fol\ks
- more\
- last line
----
-name: heredoc-6
-description:
- Check that \newline in initial here-delim word doesn't imply
- a quoted here-doc.
-stdin:
- a=i
- cat << EO\
- F
- h$a
- there
- EOF
-expected-stdout:
- hi
- there
----
-name: heredoc-7
-description:
- Check that double quoted $ expressions in here delimiters are
- not expanded and match the delimiter.
- POSIX says only quote removal is applied to the delimiter.
-stdin:
- a=b
- cat << "E$a"
- hi
- h$a
- hb
- E$a
- echo done
-expected-stdout:
- hi
- h$a
- hb
- done
----
-name: heredoc-8
-description:
- Check that double quoted escaped $ expressions in here
- delimiters are not expanded and match the delimiter.
- POSIX says only quote removal is applied to the delimiter
- (\ counts as a quote).
-stdin:
- a=b
- cat << "E\$a"
- hi
- h$a
- h\$a
- hb
- h\b
- E$a
- echo done
-expected-stdout:
- hi
- h$a
- h\$a
- hb
- h\b
- done
----
-name: heredoc-9a
-description:
- Check that here strings work.
-stdin:
- bar="bar
- baz"
- tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<foo
- "$__progname" -c "tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<foo"
- tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<"$bar"
- tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<'$bar'
- tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<\$bar
- tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<-foo
- tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<"$(echo "foo bar")"
-expected-stdout:
- sbb
- sbb
- one
- onm
- $one
- $one
- -sbb
- sbb one
----
-name: heredoc-9b
-description:
- Check that a corner case of here strings works like bash
-stdin:
- fnord=42
- bar="bar
- \$fnord baz"
- tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<$bar
-expected-stdout:
- one $sabeq onm
-category: bash
----
-name: heredoc-9c
-description:
- Check that a corner case of here strings works like ksh93, zsh
-stdin:
- fnord=42
- bar="bar
- \$fnord baz"
- tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<$bar
-expected-stdout:
- one
- $sabeq onm
----
-name: heredoc-9d
-description:
- Check another corner case of here strings
-stdin:
- tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<< bar
-expected-stdout:
- one
----
-name: heredoc-9e
-description:
- Check here string related regression with multiple iops
-stdin:
- echo $(tr r z <<<'bar' 2>/dev/null)
-expected-stdout:
- baz
----
-name: heredoc-10
-description:
- Check direct here document assignment
-stdin:
- x=u
- va=<<EOF
- =a $x \x40=
- EOF
- vb=<<'EOF'
- =b $x \x40=
- EOF
- function foo {
- vc=<<-EOF
- =c $x \x40=
- EOF
- }
- fnd=$(typeset -f foo)
- print -r -- "$fnd"
- function foo {
- echo blub
- }
- foo
- eval "$fnd"
- foo
- # rather nonsensical, but…
- vd=<<<"=d $x \x40="
- ve=<<<'=e $x \x40='
- vf=<<<$'=f $x \x40='
- # now check
- print -r -- "| va={$va} vb={$vb} vc={$vc} vd={$vd} ve={$ve} vf={$vf} |"
-expected-stdout:
- function foo {
- vc=<<-EOF
- =c $x \x40=
- EOF
-
- }
- blub
- | va={=a u \x40=
- } vb={=b $x \x40=
- } vc={=c u \x40=
- } vd={=d u \x40=
- } ve={=e $x \x40=
- } vf={=f $x @=
- } |
----
-name: heredoc-11
-description:
- Check here documents with no or empty delimiter
-stdin:
- x=u
- va=<<
- =a $x \x40=
- <<
- vb=<<''
- =b $x \x40=
-
- function foo {
- vc=<<-
- =c $x \x40=
- <<
- vd=<<-''
- =d $x \x40=
-
- }
- fnd=$(typeset -f foo)
- print -r -- "$fnd"
- function foo {
- echo blub
- }
- foo
- eval "$fnd"
- foo
- print -r -- "| va={$va} vb={$vb} vc={$vc} vd={$vd} |"
-expected-stdout:
- function foo {
- vc=<<-
- =c $x \x40=
- <<
-
- vd=<<-""
- =d $x \x40=
-
-
- }
- blub
- | va={=a u \x40=
- } vb={=b $x \x40=
- } vc={=c u \x40=
- } vd={=d $x \x40=
- } |
----
-name: heredoc-comsub-1
-description:
- Tests for here documents in COMSUB, taken from Austin ML
-stdin:
- text=$(cat <<EOF
- here is the text
- EOF)
- echo = $text =
-expected-stdout:
- = here is the text =
----
-name: heredoc-comsub-2
-description:
- Tests for here documents in COMSUB, taken from Austin ML
-stdin:
- unbalanced=$(cat <<EOF
- this paren ) is a problem
- EOF)
- echo = $unbalanced =
-expected-stdout:
- = this paren ) is a problem =
----
-name: heredoc-comsub-3
-description:
- Tests for here documents in COMSUB, taken from Austin ML
-stdin:
- balanced=$(cat <<EOF
- these parens ( ) are not a problem
- EOF)
- echo = $balanced =
-expected-stdout:
- = these parens ( ) are not a problem =
----
-name: heredoc-comsub-4
-description:
- Tests for here documents in COMSUB, taken from Austin ML
-stdin:
- balanced=$(cat <<EOF
- these parens \( ) are a problem
- EOF)
- echo = $balanced =
-expected-stdout:
- = these parens \( ) are a problem =
----
-name: heredoc-subshell-1
-description:
- Tests for here documents in subshells, taken from Austin ML
-stdin:
- (cat <<EOF
- some text
- EOF)
- echo end
-expected-stdout:
- some text
- end
----
-name: heredoc-subshell-2
-description:
- Tests for here documents in subshells, taken from Austin ML
-stdin:
- (cat <<EOF
- some text
- EOF
- )
- echo end
-expected-stdout:
- some text
- end
----
-name: heredoc-subshell-3
-description:
- Tests for here documents in subshells, taken from Austin ML
-stdin:
- (cat <<EOF; )
- some text
- EOF
- echo end
-expected-stdout:
- some text
- end
----
-name: heredoc-weird-1
-description:
- Tests for here documents, taken from Austin ML
- Documents current state in mksh, *NOT* necessarily correct!
-stdin:
- cat <<END
- hello
- END\
- END
- END
- echo end
-expected-stdout:
- hello
- ENDEND
- end
----
-name: heredoc-weird-2
-description:
- Tests for here documents, taken from Austin ML
-stdin:
- cat <<' END '
- hello
- END
- echo end
-expected-stdout:
- hello
- end
----
-name: heredoc-weird-4
-description:
- Tests for here documents, taken from Austin ML
- Documents current state in mksh, *NOT* necessarily correct!
-stdin:
- cat <<END
- hello\
- END
- END
- echo end
-expected-stdout:
- helloEND
- end
----
-name: heredoc-weird-5
-description:
- Tests for here documents, taken from Austin ML
- Documents current state in mksh, *NOT* necessarily correct!
-stdin:
- cat <<END
- hello
- \END
- END
- echo end
-expected-stdout:
- hello
- \END
- end
----
-name: heredoc-tmpfile-1
-description:
- Check that heredoc temp files aren't removed too soon or too late.
- Heredoc in simple command.
-stdin:
- TMPDIR=$PWD
- eval '
- cat <<- EOF
- hi
- EOF
- for i in a b ; do
- cat <<- EOF
- more
- EOF
- done
- ' &
- sleep 1
- echo Left overs: *
-expected-stdout:
- hi
- more
- more
- Left overs: *
----
-name: heredoc-tmpfile-2
-description:
- Check that heredoc temp files aren't removed too soon or too late.
- Heredoc in function, multiple calls to function.
-stdin:
- TMPDIR=$PWD
- eval '
- foo() {
- cat <<- EOF
- hi
- EOF
- }
- foo
- foo
- ' &
- sleep 1
- echo Left overs: *
-expected-stdout:
- hi
- hi
- Left overs: *
----
-name: heredoc-tmpfile-3
-description:
- Check that heredoc temp files aren't removed too soon or too late.
- Heredoc in function in loop, multiple calls to function.
-stdin:
- TMPDIR=$PWD
- eval '
- foo() {
- cat <<- EOF
- hi
- EOF
- }
- for i in a b; do
- foo
- foo() {
- cat <<- EOF
- folks $i
- EOF
- }
- done
- foo
- ' &
- sleep 1
- echo Left overs: *
-expected-stdout:
- hi
- folks b
- folks b
- Left overs: *
----
-name: heredoc-tmpfile-4
-description:
- Check that heredoc temp files aren't removed too soon or too late.
- Backgrounded simple command with here doc
-stdin:
- TMPDIR=$PWD
- eval '
- cat <<- EOF &
- hi
- EOF
- ' &
- sleep 1
- echo Left overs: *
-expected-stdout:
- hi
- Left overs: *
----
-name: heredoc-tmpfile-5
-description:
- Check that heredoc temp files aren't removed too soon or too late.
- Backgrounded subshell command with here doc
-stdin:
- TMPDIR=$PWD
- eval '
- (
- sleep 1 # so parent exits
- echo A
- cat <<- EOF
- hi
- EOF
- echo B
- ) &
- ' &
- sleep 2
- echo Left overs: *
-expected-stdout:
- A
- hi
- B
- Left overs: *
----
-name: heredoc-tmpfile-6
-description:
- Check that heredoc temp files aren't removed too soon or too late.
- Heredoc in pipeline.
-stdin:
- TMPDIR=$PWD
- eval '
- cat <<- EOF | sed "s/hi/HI/"
- hi
- EOF
- ' &
- sleep 1
- echo Left overs: *
-expected-stdout:
- HI
- Left overs: *
----
-name: heredoc-tmpfile-7
-description:
- Check that heredoc temp files aren't removed too soon or too late.
- Heredoc in backgrounded pipeline.
-stdin:
- TMPDIR=$PWD
- eval '
- cat <<- EOF | sed 's/hi/HI/' &
- hi
- EOF
- ' &
- sleep 1
- echo Left overs: *
-expected-stdout:
- HI
- Left overs: *
----
-name: heredoc-tmpfile-8
-description:
- Check that heredoc temp files aren't removed too soon or too
- late. Heredoc in function, backgrounded call to function.
- This check can fail on slow machines (<100 MHz), or Cygwin,
- that's normal.
-need-pass: no
-stdin:
- TMPDIR=$PWD
- # Background eval so main shell doesn't do parsing
- eval '
- foo() {
- cat <<- EOF
- hi
- EOF
- }
- foo
- # sleep so eval can die
- (sleep 1; foo) &
- (sleep 1; foo) &
- foo
- ' &
- sleep 2
- echo Left overs: *
-expected-stdout:
- hi
- hi
- hi
- hi
- Left overs: *
----
-name: heredoc-quoting-unsubst
-description:
- Check for correct handling of quoted characters in
- here documents without substitution (marker is quoted).
-stdin:
- foo=bar
- cat <<-'EOF'
- x " \" \ \\ $ \$ `echo baz` \`echo baz\` $foo \$foo x
- EOF
-expected-stdout:
- x " \" \ \\ $ \$ `echo baz` \`echo baz\` $foo \$foo x
----
-name: heredoc-quoting-subst
-description:
- Check for correct handling of quoted characters in
- here documents with substitution (marker is not quoted).
-stdin:
- foo=bar
- cat <<-EOF
- x " \" \ \\ $ \$ `echo baz` \`echo baz\` $foo \$foo x
- EOF
-expected-stdout:
- x " \" \ \ $ $ baz `echo baz` bar $foo x
----
-name: single-quotes-in-braces
-description:
- Check that single quotes inside unquoted {} are treated as quotes
-stdin:
- foo=1
- echo ${foo:+'blah $foo'}
-expected-stdout:
- blah $foo
----
-name: single-quotes-in-quoted-braces
-description:
- Check that single quotes inside quoted {} are treated as
- normal char
-stdin:
- foo=1
- echo "${foo:+'blah $foo'}"
-expected-stdout:
- 'blah 1'
----
-name: single-quotes-in-braces-nested
-description:
- Check that single quotes inside unquoted {} are treated as quotes,
- even if that's inside a double-quoted command expansion
-stdin:
- foo=1
- echo "$( echo ${foo:+'blah $foo'})"
-expected-stdout:
- blah $foo
----
-name: single-quotes-in-brace-pattern
-description:
- Check that single quotes inside {} pattern are treated as quotes
-stdin:
- foo=1234
- echo ${foo%'2'*} "${foo%'2'*}" ${foo%2'*'} "${foo%2'*'}"
-expected-stdout:
- 1 1 1234 1234
----
-name: single-quotes-in-heredoc-braces
-description:
- Check that single quotes inside {} in heredoc are treated
- as normal char
-stdin:
- foo=1
- cat <<EOM
- ${foo:+'blah $foo'}
- EOM
-expected-stdout:
- 'blah 1'
----
-name: single-quotes-in-nested-braces
-description:
- Check that single quotes inside nested unquoted {} are
- treated as quotes
-stdin:
- foo=1
- echo ${foo:+${foo:+'blah $foo'}}
-expected-stdout:
- blah $foo
----
-name: single-quotes-in-nested-quoted-braces
-description:
- Check that single quotes inside nested quoted {} are treated
- as normal char
-stdin:
- foo=1
- echo "${foo:+${foo:+'blah $foo'}}"
-expected-stdout:
- 'blah 1'
----
-name: single-quotes-in-nested-braces-nested
-description:
- Check that single quotes inside nested unquoted {} are treated
- as quotes, even if that's inside a double-quoted command expansion
-stdin:
- foo=1
- echo "$( echo ${foo:+${foo:+'blah $foo'}})"
-expected-stdout:
- blah $foo
----
-name: single-quotes-in-nested-brace-pattern
-description:
- Check that single quotes inside nested {} pattern are treated as quotes
-stdin:
- foo=1234
- echo ${foo:+${foo%'2'*}} "${foo:+${foo%'2'*}}" ${foo:+${foo%2'*'}} "${foo:+${foo%2'*'}}"
-expected-stdout:
- 1 1 1234 1234
----
-name: single-quotes-in-heredoc-nested-braces
-description:
- Check that single quotes inside nested {} in heredoc are treated
- as normal char
-stdin:
- foo=1
- cat <<EOM
- ${foo:+${foo:+'blah $foo'}}
- EOM
-expected-stdout:
- 'blah 1'
----
-name: history-basic
-description:
- See if we can test history at all
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo hi
- fc -l
-expected-stdout:
- hi
- 1 echo hi
-expected-stderr-pattern:
- /^X*$/
----
-name: history-dups
-description:
- Verify duplicates and spaces are not entered
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo hi
- echo yo
- echo hi
- fc -l
-expected-stdout:
- hi
- yo
- hi
- 1 echo hi
-expected-stderr-pattern:
- /^X*$/
----
-name: history-unlink
-description:
- Check if broken HISTFILEs do not cause trouble
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=foo/hist.file!
-file-setup: file 644 "Env"
- PS1=X
-file-setup: dir 755 "foo"
-file-setup: file 644 "foo/hist.file"
- sometext
-time-limit: 5
-perl-setup: chmod(0555, "foo");
-stdin:
- echo hi
- fc -l
- chmod 0755 foo
-expected-stdout:
- hi
- 1 echo hi
-expected-stderr-pattern:
- /(.*can't unlink HISTFILE.*\n)?X*$/
----
-name: history-e-minus-1
-description:
- Check if more recent command is executed
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo hi
- echo there
- fc -e -
-expected-stdout:
- hi
- there
- there
-expected-stderr-pattern:
- /^X*echo there\nX*$/
----
-name: history-e-minus-2
-description:
- Check that repeated command is printed before command
- is re-executed.
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- exec 2>&1
- echo hi
- echo there
- fc -e -
-expected-stdout-pattern:
- /X*hi\nX*there\nX*echo there\nthere\nX*/
-expected-stderr-pattern:
- /^X*$/
----
-name: history-e-minus-3
-description:
- fc -e - fails when there is no history
- (ksh93 has a bug that causes this to fail)
- (ksh88 loops on this)
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- fc -e -
- echo ok
-expected-stdout:
- ok
-expected-stderr-pattern:
- /^X*.*:.*history.*\nX*$/
----
-name: history-e-minus-4
-description:
- Check if "fc -e -" command output goes to stdout.
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo abc
- fc -e - | (read x; echo "A $x")
- echo ok
-expected-stdout:
- abc
- A abc
- ok
-expected-stderr-pattern:
- /^X*echo abc\nX*/
----
-name: history-e-minus-5
-description:
- fc is replaced in history by new command.
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo abc def
- echo ghi jkl
- :
- fc -e - echo
- fc -l 2 5
-expected-stdout:
- abc def
- ghi jkl
- ghi jkl
- 2 echo ghi jkl
- 3 :
- 4 echo ghi jkl
- 5 fc -l 2 5
-expected-stderr-pattern:
- /^X*echo ghi jkl\nX*$/
----
-name: history-list-1
-description:
- List lists correct range
- (ksh88 fails 'cause it lists the fc command)
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2
- echo line 3
- fc -l -- -2
-expected-stdout:
- line 1
- line 2
- line 3
- 2 echo line 2
- 3 echo line 3
-expected-stderr-pattern:
- /^X*$/
----
-name: history-list-2
-description:
- Lists oldest history if given pre-historic number
- (ksh93 has a bug that causes this to fail)
- (ksh88 fails 'cause it lists the fc command)
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2
- echo line 3
- fc -l -- -40
-expected-stdout:
- line 1
- line 2
- line 3
- 1 echo line 1
- 2 echo line 2
- 3 echo line 3
-expected-stderr-pattern:
- /^X*$/
----
-name: history-list-3
-description:
- Can give number 'options' to fc
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2
- echo line 3
- echo line 4
- fc -l -3 -2
-expected-stdout:
- line 1
- line 2
- line 3
- line 4
- 2 echo line 2
- 3 echo line 3
-expected-stderr-pattern:
- /^X*$/
----
-name: history-list-4
-description:
- -1 refers to previous command
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2
- echo line 3
- echo line 4
- fc -l -1 -1
-expected-stdout:
- line 1
- line 2
- line 3
- line 4
- 4 echo line 4
-expected-stderr-pattern:
- /^X*$/
----
-name: history-list-5
-description:
- List command stays in history
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2
- echo line 3
- echo line 4
- fc -l -1 -1
- fc -l -2 -1
-expected-stdout:
- line 1
- line 2
- line 3
- line 4
- 4 echo line 4
- 4 echo line 4
- 5 fc -l -1 -1
-expected-stderr-pattern:
- /^X*$/
----
-name: history-list-6
-description:
- HISTSIZE limits about of history kept.
- (ksh88 fails 'cause it lists the fc command)
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!HISTSIZE=3!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2
- echo line 3
- echo line 4
- echo line 5
- fc -l
-expected-stdout:
- line 1
- line 2
- line 3
- line 4
- line 5
- 4 echo line 4
- 5 echo line 5
-expected-stderr-pattern:
- /^X*$/
----
-name: history-list-7
-description:
- fc allows too old/new errors in range specification
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!HISTSIZE=3!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2
- echo line 3
- echo line 4
- echo line 5
- fc -l 1 30
-expected-stdout:
- line 1
- line 2
- line 3
- line 4
- line 5
- 4 echo line 4
- 5 echo line 5
- 6 fc -l 1 30
-expected-stderr-pattern:
- /^X*$/
----
-name: history-list-r-1
-description:
- test -r flag in history
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2
- echo line 3
- echo line 4
- echo line 5
- fc -l -r 2 4
-expected-stdout:
- line 1
- line 2
- line 3
- line 4
- line 5
- 4 echo line 4
- 3 echo line 3
- 2 echo line 2
-expected-stderr-pattern:
- /^X*$/
----
-name: history-list-r-2
-description:
- If first is newer than last, -r is implied.
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2
- echo line 3
- echo line 4
- echo line 5
- fc -l 4 2
-expected-stdout:
- line 1
- line 2
- line 3
- line 4
- line 5
- 4 echo line 4
- 3 echo line 3
- 2 echo line 2
-expected-stderr-pattern:
- /^X*$/
----
-name: history-list-r-3
-description:
- If first is newer than last, -r is cancelled.
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2
- echo line 3
- echo line 4
- echo line 5
- fc -l -r 4 2
-expected-stdout:
- line 1
- line 2
- line 3
- line 4
- line 5
- 2 echo line 2
- 3 echo line 3
- 4 echo line 4
-expected-stderr-pattern:
- /^X*$/
----
-name: history-subst-1
-description:
- Basic substitution
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo abc def
- echo ghi jkl
- fc -e - abc=AB 'echo a'
-expected-stdout:
- abc def
- ghi jkl
- AB def
-expected-stderr-pattern:
- /^X*echo AB def\nX*$/
----
-name: history-subst-2
-description:
- Does subst find previous command?
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo abc def
- echo ghi jkl
- fc -e - jkl=XYZQRT 'echo g'
-expected-stdout:
- abc def
- ghi jkl
- ghi XYZQRT
-expected-stderr-pattern:
- /^X*echo ghi XYZQRT\nX*$/
----
-name: history-subst-3
-description:
- Does subst find previous command when no arguments given
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo abc def
- echo ghi jkl
- fc -e - jkl=XYZQRT
-expected-stdout:
- abc def
- ghi jkl
- ghi XYZQRT
-expected-stderr-pattern:
- /^X*echo ghi XYZQRT\nX*$/
----
-name: history-subst-4
-description:
- Global substitutions work
- (ksh88 and ksh93 do not have -g option)
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo abc def asjj sadjhasdjh asdjhasd
- fc -e - -g a=FooBAR
-expected-stdout:
- abc def asjj sadjhasdjh asdjhasd
- FooBARbc def FooBARsjj sFooBARdjhFooBARsdjh FooBARsdjhFooBARsd
-expected-stderr-pattern:
- /^X*echo FooBARbc def FooBARsjj sFooBARdjhFooBARsdjh FooBARsdjhFooBARsd\nX*$/
----
-name: history-subst-5
-description:
- Make sure searches don't find current (fc) command
- (ksh88/ksh93 don't have the ? prefix thing so they fail this test)
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo abc def
- echo ghi jkl
- fc -e - abc=AB \?abc
-expected-stdout:
- abc def
- ghi jkl
- AB def
-expected-stderr-pattern:
- /^X*echo AB def\nX*$/
----
-name: history-ed-1-old
-description:
- Basic (ed) editing works (assumes you have generic ed editor
- that prints no prompts). This is for oldish ed(1) which write
- the character count to stdout.
-category: stdout-ed
-need-ctty: yes
-need-pass: no
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo abc def
- fc echo
- s/abc/FOOBAR/
- w
- q
-expected-stdout:
- abc def
- 13
- 16
- FOOBAR def
-expected-stderr-pattern:
- /^X*echo FOOBAR def\nX*$/
----
-name: history-ed-2-old
-description:
- Correct command is edited when number given
-category: stdout-ed
-need-ctty: yes
-need-pass: no
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2 is here
- echo line 3
- echo line 4
- fc 2
- s/is here/is changed/
- w
- q
-expected-stdout:
- line 1
- line 2 is here
- line 3
- line 4
- 20
- 23
- line 2 is changed
-expected-stderr-pattern:
- /^X*echo line 2 is changed\nX*$/
----
-name: history-ed-3-old
-description:
- Newly created multi line commands show up as single command
- in history.
- (NOTE: adjusted for COMPLEX HISTORY compile time option)
- (ksh88 fails 'cause it lists the fc command)
-category: stdout-ed
-need-ctty: yes
-need-pass: no
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo abc def
- fc echo
- s/abc/FOOBAR/
- $a
- echo a new line
- .
- w
- q
- fc -l
-expected-stdout:
- abc def
- 13
- 32
- FOOBAR def
- a new line
- 1 echo abc def
- 2 echo FOOBAR def
- 3 echo a new line
-expected-stderr-pattern:
- /^X*echo FOOBAR def\necho a new line\nX*$/
----
-name: history-ed-1
-description:
- Basic (ed) editing works (assumes you have generic ed editor
- that prints no prompts). This is for newish ed(1) and stderr.
-category: !no-stderr-ed
-need-ctty: yes
-need-pass: no
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo abc def
- fc echo
- s/abc/FOOBAR/
- w
- q
-expected-stdout:
- abc def
- FOOBAR def
-expected-stderr-pattern:
- /^X*13\n16\necho FOOBAR def\nX*$/
----
-name: history-ed-2
-description:
- Correct command is edited when number given
-category: !no-stderr-ed
-need-ctty: yes
-need-pass: no
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo line 1
- echo line 2 is here
- echo line 3
- echo line 4
- fc 2
- s/is here/is changed/
- w
- q
-expected-stdout:
- line 1
- line 2 is here
- line 3
- line 4
- line 2 is changed
-expected-stderr-pattern:
- /^X*20\n23\necho line 2 is changed\nX*$/
----
-name: history-ed-3
-description:
- Newly created multi line commands show up as single command
- in history.
-category: !no-stderr-ed
-need-ctty: yes
-need-pass: no
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- echo abc def
- fc echo
- s/abc/FOOBAR/
- $a
- echo a new line
- .
- w
- q
- fc -l
-expected-stdout:
- abc def
- FOOBAR def
- a new line
- 1 echo abc def
- 2 echo FOOBAR def
- 3 echo a new line
-expected-stderr-pattern:
- /^X*13\n32\necho FOOBAR def\necho a new line\nX*$/
----
-name: IFS-space-1
-description:
- Simple test, default IFS
-stdin:
- showargs() { for i; do echo -n " <$i>"; done; echo; }
- set -- A B C
- showargs 1 $*
- showargs 2 "$*"
- showargs 3 $@
- showargs 4 "$@"
-expected-stdout:
- <1> <A> <B> <C>
- <2> <A B C>
- <3> <A> <B> <C>
- <4> <A> <B> <C>
----
-name: IFS-colon-1
-description:
- Simple test, IFS=:
-stdin:
- showargs() { for i; do echo -n " <$i>"; done; echo; }
- IFS=:
- set -- A B C
- showargs 1 $*
- showargs 2 "$*"
- showargs 3 $@
- showargs 4 "$@"
-expected-stdout:
- <1> <A> <B> <C>
- <2> <A:B:C>
- <3> <A> <B> <C>
- <4> <A> <B> <C>
----
-name: IFS-null-1
-description:
- Simple test, IFS=""
-stdin:
- showargs() { for i; do echo -n " <$i>"; done; echo; }
- IFS=""
- set -- A B C
- showargs 1 $*
- showargs 2 "$*"
- showargs 3 $@
- showargs 4 "$@"
-expected-stdout:
- <1> <A> <B> <C>
- <2> <ABC>
- <3> <A> <B> <C>
- <4> <A> <B> <C>
----
-name: IFS-space-colon-1
-description:
- Simple test, IFS=<white-space>:
-stdin:
- showargs() { for i; do echo -n " <$i>"; done; echo; }
- IFS="$IFS:"
- set --
- showargs 1 $*
- showargs 2 "$*"
- showargs 3 $@
- showargs 4 "$@"
- showargs 5 : "$@"
-expected-stdout:
- <1>
- <2> <>
- <3>
- <4>
- <5> <:>
----
-name: IFS-space-colon-2
-description:
- Simple test, IFS=<white-space>:
- AT&T ksh fails this, POSIX says the test is correct.
-stdin:
- showargs() { for i; do echo -n " <$i>"; done; echo; }
- IFS="$IFS:"
- set --
- showargs :"$@"
-expected-stdout:
- <:>
----
-name: IFS-space-colon-4
-description:
- Simple test, IFS=<white-space>:
-stdin:
- showargs() { for i; do echo -n " <$i>"; done; echo; }
- IFS="$IFS:"
- set --
- showargs "$@$@"
-expected-stdout:
-
----
-name: IFS-space-colon-5
-description:
- Simple test, IFS=<white-space>:
- Don't know what POSIX thinks of this. AT&T ksh does not do this.
-stdin:
- showargs() { for i; do echo -n " <$i>"; done; echo; }
- IFS="$IFS:"
- set --
- showargs "${@:-}"
-expected-stdout:
- <>
----
-name: IFS-subst-1
-description:
- Simple test, IFS=<white-space>:
-stdin:
- showargs() { for i; do echo -n " <$i>"; done; echo; }
- IFS="$IFS:"
- x=":b: :"
- echo -n '1:'; for i in $x ; do echo -n " [$i]" ; done ; echo
- echo -n '2:'; for i in :b:: ; do echo -n " [$i]" ; done ; echo
- showargs 3 $x
- showargs 4 :b::
- x="a:b:"
- echo -n '5:'; for i in $x ; do echo -n " [$i]" ; done ; echo
- showargs 6 $x
- x="a::c"
- echo -n '7:'; for i in $x ; do echo -n " [$i]" ; done ; echo
- showargs 8 $x
- echo -n '9:'; for i in ${FOO-`echo -n h:i`th:ere} ; do echo -n " [$i]" ; done ; echo
- showargs 10 ${FOO-`echo -n h:i`th:ere}
- showargs 11 "${FOO-`echo -n h:i`th:ere}"
- x=" A : B::D"
- echo -n '12:'; for i in $x ; do echo -n " [$i]" ; done ; echo
- showargs 13 $x
-expected-stdout:
- 1: [] [b] []
- 2: [:b::]
- <3> <> <b> <>
- <4> <:b::>
- 5: [a] [b]
- <6> <a> <b>
- 7: [a] [] [c]
- <8> <a> <> <c>
- 9: [h] [ith] [ere]
- <10> <h> <ith> <ere>
- <11> <h:ith:ere>
- 12: [A] [B] [] [D]
- <13> <A> <B> <> <D>
----
-name: integer-base-err-1
-description:
- Can't have 0 base (causes shell to exit)
-expected-exit: e != 0
-stdin:
- typeset -i i
- i=3
- i=0#4
- echo $i
-expected-stderr-pattern:
- /^.*:.*0#4.*\n$/
----
-name: integer-base-err-2
-description:
- Can't have multiple bases in a 'constant' (causes shell to exit)
- (ksh88 fails this test)
-expected-exit: e != 0
-stdin:
- typeset -i i
- i=3
- i=2#110#11
- echo $i
-expected-stderr-pattern:
- /^.*:.*2#110#11.*\n$/
----
-name: integer-base-err-3
-description:
- Syntax errors in expressions and effects on bases
- (interactive so errors don't cause exits)
- (ksh88 fails this test - shell exits, even with -i)
-need-ctty: yes
-arguments: !-i!
-stdin:
- PS1= # minimise prompt hassles
- typeset -i4 a=10
- typeset -i a=2+
- echo $a
- typeset -i4 a=10
- typeset -i2 a=2+
- echo $a
-expected-stderr-pattern:
- /^([#\$] )?.*:.*2+.*\n.*:.*2+.*\n$/
-expected-stdout:
- 4#22
- 4#22
----
-name: integer-base-err-4
-description:
- Are invalid digits (according to base) errors?
- (ksh93 fails this test)
-expected-exit: e != 0
-stdin:
- typeset -i i;
- i=3#4
-expected-stderr-pattern:
- /^([#\$] )?.*:.*3#4.*\n$/
----
-name: integer-base-1
-description:
- Missing number after base is treated as 0.
-stdin:
- typeset -i i
- i=3
- i=2#
- echo $i
-expected-stdout:
- 0
----
-name: integer-base-2
-description:
- Check 'stickyness' of base in various situations
-stdin:
- typeset -i i=8
- echo $i
- echo ---------- A
- typeset -i4 j=8
- echo $j
- echo ---------- B
- typeset -i k=8
- typeset -i4 k=8
- echo $k
- echo ---------- C
- typeset -i4 l
- l=3#10
- echo $l
- echo ---------- D
- typeset -i m
- m=3#10
- echo $m
- echo ---------- E
- n=2#11
- typeset -i n
- echo $n
- n=10
- echo $n
- echo ---------- F
- typeset -i8 o=12
- typeset -i4 o
- echo $o
- echo ---------- G
- typeset -i p
- let p=8#12
- echo $p
-expected-stdout:
- 8
- ---------- A
- 4#20
- ---------- B
- 4#20
- ---------- C
- 4#3
- ---------- D
- 3#10
- ---------- E
- 2#11
- 2#1010
- ---------- F
- 4#30
- ---------- G
- 8#12
----
-name: integer-base-3
-description:
- More base parsing (hmm doesn't test much..)
-stdin:
- typeset -i aa
- aa=1+12#10+2
- echo $aa
- typeset -i bb
- bb=1+$aa
- echo $bb
- typeset -i bb
- bb=$aa
- echo $bb
- typeset -i cc
- cc=$aa
- echo $cc
-expected-stdout:
- 15
- 16
- 15
- 15
----
-name: integer-base-4
-description:
- Check that things not declared as integers are not made integers,
- also, check if base is not reset by -i with no arguments.
- (ksh93 fails - prints 10#20 - go figure)
-stdin:
- xx=20
- let xx=10
- typeset -i | grep '^xx='
- typeset -i4 a=10
- typeset -i a=20
- echo $a
-expected-stdout:
- 4#110
----
-name: integer-base-5
-description:
- More base stuff
-stdin:
- typeset -i4 a=3#10
- echo $a
- echo --
- typeset -i j=3
- j='~3'
- echo $j
- echo --
- typeset -i k=1
- x[k=k+1]=3
- echo $k
- echo --
- typeset -i l
- for l in 1 2+3 4; do echo $l; done
-expected-stdout:
- 4#3
- --
- -4
- --
- 2
- --
- 1
- 5
- 4
----
-name: integer-base-6
-description:
- Even more base stuff
- (ksh93 fails this test - prints 0)
-stdin:
- typeset -i7 i
- i=
- echo $i
-expected-stdout:
- 7#0
----
-name: integer-base-7
-description:
- Check that non-integer parameters don't get bases assigned
-stdin:
- echo $(( zz = 8#100 ))
- echo $zz
-expected-stdout:
- 64
- 64
----
-name: integer-base-check-flat
-description:
- Check behaviour does not match POSuX (except if set -o posix),
- because a not type-safe scripting language has *no* business
- interpreting the string "010" as octal numer eight (dangerous).
-stdin:
- echo 1 "$("$__progname" -c 'echo :$((10))/$((010)),$((0x10)):')" .
- echo 2 "$("$__progname" -o posix -c 'echo :$((10))/$((010)),$((0x10)):')" .
- echo 3 "$("$__progname" -o sh -c 'echo :$((10))/$((010)),$((0x10)):')" .
-expected-stdout:
- 1 :10/10,16: .
- 2 :10/8,16: .
- 3 :10/10,16: .
----
-name: integer-base-check-numeric-from
-description:
- Check behaviour for base one to 36, and that 37 errors out
-stdin:
- echo 1:$((1#1))0.
- i=1
- while (( ++i <= 36 )); do
- eval 'echo '$i':$(('$i'#10)).'
- done
- echo 37:$($__progname -c 'echo $((37#10))').$?:
-expected-stdout:
- 1:490.
- 2:2.
- 3:3.
- 4:4.
- 5:5.
- 6:6.
- 7:7.
- 8:8.
- 9:9.
- 10:10.
- 11:11.
- 12:12.
- 13:13.
- 14:14.
- 15:15.
- 16:16.
- 17:17.
- 18:18.
- 19:19.
- 20:20.
- 21:21.
- 22:22.
- 23:23.
- 24:24.
- 25:25.
- 26:26.
- 27:27.
- 28:28.
- 29:29.
- 30:30.
- 31:31.
- 32:32.
- 33:33.
- 34:34.
- 35:35.
- 36:36.
- 37:.0:
-expected-stderr-pattern:
- /.*bad number '37#10'/
----
-name: integer-base-check-numeric-to
-description:
- Check behaviour for base one to 36, and that 37 errors out
-stdin:
- i=0
- while (( ++i <= 37 )); do
- typeset -Uui$i x=0x40
- eval "typeset -i10 y=$x"
- print $i:$x.$y.
- done
-expected-stdout:
- 1:1#@.64.
- 2:2#1000000.64.
- 3:3#2101.64.
- 4:4#1000.64.
- 5:5#224.64.
- 6:6#144.64.
- 7:7#121.64.
- 8:8#100.64.
- 9:9#71.64.
- 10:64.64.
- 11:11#59.64.
- 12:12#54.64.
- 13:13#4C.64.
- 14:14#48.64.
- 15:15#44.64.
- 16:16#40.64.
- 17:17#3D.64.
- 18:18#3A.64.
- 19:19#37.64.
- 20:20#34.64.
- 21:21#31.64.
- 22:22#2K.64.
- 23:23#2I.64.
- 24:24#2G.64.
- 25:25#2E.64.
- 26:26#2C.64.
- 27:27#2A.64.
- 28:28#28.64.
- 29:29#26.64.
- 30:30#24.64.
- 31:31#22.64.
- 32:32#20.64.
- 33:33#1V.64.
- 34:34#1U.64.
- 35:35#1T.64.
- 36:36#1S.64.
- 37:36#1S.64.
-expected-stderr-pattern:
- /.*bad integer base: 37/
----
-name: integer-arithmetic-span
-description:
- Check wraparound and size that is defined in mksh
-category: int:32
-stdin:
- echo s:$((2147483647+1)).$(((2147483647*2)+1)).$(((2147483647*2)+2)).
- echo u:$((#2147483647+1)).$((#(2147483647*2)+1)).$((#(2147483647*2)+2)).
-expected-stdout:
- s:-2147483648.-1.0.
- u:2147483648.4294967295.0.
----
-name: integer-arithmetic-span-64
-description:
- Check wraparound and size that is defined in mksh
-category: int:64
-stdin:
- echo s:$((9223372036854775807+1)).$(((9223372036854775807*2)+1)).$(((9223372036854775807*2)+2)).
- echo u:$((#9223372036854775807+1)).$((#(9223372036854775807*2)+1)).$((#(9223372036854775807*2)+2)).
-expected-stdout:
- s:-9223372036854775808.-1.0.
- u:9223372036854775808.18446744073709551615.0.
----
-name: integer-size-FAIL-to-detect
-description:
- Notify the user that their ints are not 32 or 64 bit
-category: int:u
-stdin:
- :
----
-name: lineno-stdin
-description:
- See if $LINENO is updated and can be modified.
-stdin:
- echo A $LINENO
- echo B $LINENO
- LINENO=20
- echo C $LINENO
-expected-stdout:
- A 1
- B 2
- C 20
----
-name: lineno-inc
-description:
- See if $LINENO is set for .'d files.
-file-setup: file 644 "dotfile"
- echo dot A $LINENO
- echo dot B $LINENO
- LINENO=20
- echo dot C $LINENO
-stdin:
- echo A $LINENO
- echo B $LINENO
- . ./dotfile
-expected-stdout:
- A 1
- B 2
- dot A 1
- dot B 2
- dot C 20
----
-name: lineno-func
-description:
- See if $LINENO is set for commands in a function.
-stdin:
- echo A $LINENO
- echo B $LINENO
- bar() {
- echo func A $LINENO
- echo func B $LINENO
- }
- bar
- echo C $LINENO
-expected-stdout:
- A 1
- B 2
- func A 4
- func B 5
- C 8
----
-name: lineno-unset
-description:
- See if unsetting LINENO makes it non-magic.
-file-setup: file 644 "dotfile"
- echo dot A $LINENO
- echo dot B $LINENO
-stdin:
- unset LINENO
- echo A $LINENO
- echo B $LINENO
- bar() {
- echo func A $LINENO
- echo func B $LINENO
- }
- bar
- . ./dotfile
- echo C $LINENO
-expected-stdout:
- A
- B
- func A
- func B
- dot A
- dot B
- C
----
-name: lineno-unset-use
-description:
- See if unsetting LINENO makes it non-magic even
- when it is re-used.
-file-setup: file 644 "dotfile"
- echo dot A $LINENO
- echo dot B $LINENO
-stdin:
- unset LINENO
- LINENO=3
- echo A $LINENO
- echo B $LINENO
- bar() {
- echo func A $LINENO
- echo func B $LINENO
- }
- bar
- . ./dotfile
- echo C $LINENO
-expected-stdout:
- A 3
- B 3
- func A 3
- func B 3
- dot A 3
- dot B 3
- C 3
----
-name: lineno-trap
-description:
- Check if LINENO is tracked in traps
-stdin:
- fail() {
- echo "line <$1>"
- exit 1
- }
- trap 'fail $LINENO' INT ERR
- false
-expected-stdout:
- line <6>
-expected-exit: 1
----
-name: unknown-trap
-description:
- Ensure unknown traps are not a syntax error
-stdin:
- (
- trap "echo trap 1 executed" UNKNOWNSIGNAL || echo "foo"
- echo =1
- trap "echo trap 2 executed" UNKNOWNSIGNAL EXIT 999999 FNORD
- echo = $?
- ) 2>&1 | sed "s^${__progname%.exe}\.*e*x*e*: <stdin>\[[0-9]*]PROG"
-expected-stdout:
- PROG: trap: bad signal 'UNKNOWNSIGNAL'
- foo
- =1
- PROG: trap: bad signal 'UNKNOWNSIGNAL'
- PROG: trap: bad signal '999999'
- PROG: trap: bad signal 'FNORD'
- = 3
- trap 2 executed
----
-name: read-IFS-1
-description:
- Simple test, default IFS
-stdin:
- echo "A B " > IN
- unset x y z
- read x y z < IN
- echo 1: "x[$x] y[$y] z[$z]"
- echo 1a: ${z-z not set}
- read x < IN
- echo 2: "x[$x]"
-expected-stdout:
- 1: x[A] y[B] z[]
- 1a:
- 2: x[A B]
----
-name: read-ksh-1
-description:
- If no var specified, REPLY is used
-stdin:
- echo "abc" > IN
- read < IN
- echo "[$REPLY]";
-expected-stdout:
- [abc]
----
-name: read-regress-1
-description:
- Check a regression of read
-file-setup: file 644 "foo"
- foo bar
- baz
- blah
-stdin:
- while read a b c; do
- read d
- break
- done <foo
- echo "<$a|$b|$c><$d>"
-expected-stdout:
- <foo|bar|><baz>
----
-name: read-delim-1
-description:
- Check read with delimiters
-stdin:
- emit() {
- print -n 'foo bar\tbaz\nblah \0blub\tblech\nmyok meck \0'
- }
- emit | while IFS= read -d "" foo; do print -r -- "<$foo>"; done
- emit | while read -d "" foo; do print -r -- "<$foo>"; done
- emit | while read -d "eh?" foo; do print -r -- "<$foo>"; done
-expected-stdout:
- <foo bar baz
- blah >
- <blub blech
- myok meck >
- <foo bar baz
- blah>
- <blub blech
- myok meck>
- <foo bar baz
- blah blub bl>
- <ch
- myok m>
----
-name: read-ext-1
-description:
- Check read with number of bytes specified, and -A
-stdin:
- print 'foo\nbar' >x1
- print -n x >x2
- print 'foo\\ bar baz' >x3
- x1a=u; read x1a <x1
- x1b=u; read -N-1 x1b <x1
- x2a=u; read x2a <x2; r2a=$?
- x2b=u; read -N2 x2c <x2; r2b=$?
- x2c=u; read -n2 x2c <x2; r2c=$?
- x3a=u; read -A x3a <x3
- print -r "x1a=<$x1a>"
- print -r "x1b=<$x1b>"
- print -r "x2a=$r2a<$x2a>"
- print -r "x2b=$r2b<$x2b>"
- print -r "x2c=$r2c<$x2c>"
- print -r "x3a=<${x3a[0]}|${x3a[1]}|${x3a[2]}>"
-expected-stdout:
- x1a=<foo>
- x1b=<foo
- bar>
- x2a=1<x>
- x2b=1<u>
- x2c=0<x>
- x3a=<foo bar|baz|>
----
-name: regression-1
-description:
- Lex array code had problems with this.
-stdin:
- echo foo[
- n=bar
- echo "hi[ $n ]=1"
-expected-stdout:
- foo[
- hi[ bar ]=1
----
-name: regression-2
-description:
- When PATH is set before running a command, the new path is
- not used in doing the path search
- $ echo echo hi > /tmp/q ; chmod a+rx /tmp/q
- $ PATH=/tmp q
- q: not found
- $
- in comexec() the two lines
- while (*vp != NULL)
- (void) typeset(*vp++, xxx, 0);
- need to be moved out of the switch to before findcom() is
- called - I don't know what this will break.
-stdin:
- : ${PWD:-`pwd 2> /dev/null`}
- : ${PWD:?"PWD not set - can't do test"}
- mkdir Y
- cat > Y/xxxscript << EOF
- #!/bin/sh
- # Need to restore path so echo can be found (some shells don't have
- # it as a built-in)
- PATH=\$OLDPATH
- echo hi
- exit 0
- EOF
- chmod a+rx Y/xxxscript
- export OLDPATH="$PATH"
- PATH=$PWD/Y xxxscript
- exit $?
-expected-stdout:
- hi
----
-name: regression-6
-description:
- Parsing of $(..) expressions is non-optimal. It is
- impossible to have any parentheses inside the expression.
- I.e.,
- $ ksh -c 'echo $(echo \( )'
- no closing quote
- $ ksh -c 'echo $(echo "(" )'
- no closing quote
- $
- The solution is to hack the parsing clode in lex.c, the
- question is how to hack it: should any parentheses be
- escaped by a backslash, or should recursive parsing be done
- (so quotes could also be used to hide hem). The former is
- easier, the later better...
-stdin:
- echo $(echo \( )
- echo $(echo "(" )
-expected-stdout:
- (
- (
----
-name: regression-9
-description:
- Continue in a for loop does not work right:
- for i in a b c ; do
- if [ $i = b ] ; then
- continue
- fi
- echo $i
- done
- Prints a forever...
-stdin:
- first=yes
- for i in a b c ; do
- if [ $i = b ] ; then
- if [ $first = no ] ; then
- echo 'continue in for loop broken'
- break # hope break isn't broken too :-)
- fi
- first=no
- continue
- fi
- done
- echo bye
-expected-stdout:
- bye
----
-name: regression-10
-description:
- The following:
- set -- `false`
- echo $?
- should print 0 according to POSIX (dash, bash, ksh93, posh)
- but not 0 according to the getopt(1) manual page, ksh88, and
- Bourne sh (such as /bin/sh on Solaris).
- We honour POSIX except when -o sh is set.
-category: shell:legacy-no
-stdin:
- showf() {
- [[ -o posix ]]; FPOSIX=$((1-$?))
- [[ -o sh ]]; FSH=$((1-$?))
- echo -n "FPOSIX=$FPOSIX FSH=$FSH "
- }
- set +o posix +o sh
- showf
- set -- `false`
- echo rv=$?
- set -o sh
- showf
- set -- `false`
- echo rv=$?
- set -o posix
- showf
- set -- `false`
- echo rv=$?
- set -o posix -o sh
- showf
- set -- `false`
- echo rv=$?
-expected-stdout:
- FPOSIX=0 FSH=0 rv=0
- FPOSIX=0 FSH=1 rv=1
- FPOSIX=1 FSH=0 rv=0
- FPOSIX=1 FSH=1 rv=0
----
-name: regression-10-legacy
-description:
- The following:
- set -- `false`
- echo $?
- should print 0 according to POSIX (dash, bash, ksh93, posh)
- but not 0 according to the getopt(1) manual page, ksh88, and
- Bourne sh (such as /bin/sh on Solaris).
-category: shell:legacy-yes
-stdin:
- showf() {
- [[ -o posix ]]; FPOSIX=$((1-$?))
- [[ -o sh ]]; FSH=$((1-$?))
- echo -n "FPOSIX=$FPOSIX FSH=$FSH "
- }
- set +o posix +o sh
- showf
- set -- `false`
- echo rv=$?
- set -o sh
- showf
- set -- `false`
- echo rv=$?
- set -o posix
- showf
- set -- `false`
- echo rv=$?
- set -o posix -o sh
- showf
- set -- `false`
- echo rv=$?
-expected-stdout:
- FPOSIX=0 FSH=0 rv=1
- FPOSIX=0 FSH=1 rv=1
- FPOSIX=1 FSH=0 rv=0
- FPOSIX=1 FSH=1 rv=0
----
-name: regression-11
-description:
- The following:
- x=/foo/bar/blah
- echo ${x##*/}
- should echo blah but on some machines echos /foo/bar/blah.
-stdin:
- x=/foo/bar/blah
- echo ${x##*/}
-expected-stdout:
- blah
----
-name: regression-12
-description:
- Both of the following echos produce the same output under sh/ksh.att:
- #!/bin/sh
- x="foo bar"
- echo "`echo \"$x\"`"
- echo "`echo "$x"`"
- pdksh produces different output for the former (foo instead of foo\tbar)
-stdin:
- x="foo bar"
- echo "`echo \"$x\"`"
- echo "`echo "$x"`"
-expected-stdout:
- foo bar
- foo bar
----
-name: regression-13
-description:
- The following command hangs forever:
- $ (: ; cat /etc/termcap) | sleep 2
- This is because the shell forks a shell to run the (..) command
- and this shell has the pipe open. When the sleep dies, the cat
- doesn't get a SIGPIPE 'cause a process (ie, the second shell)
- still has the pipe open.
-
- NOTE: this test provokes a bizarre bug in ksh93 (shell starts reading
- commands from /etc/termcap..)
-time-limit: 10
-stdin:
- echo A line of text that will be duplicated quite a number of times.> t1
- cat t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 > t2
- cat t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 > t1
- cat t1 t1 t1 t1 > t2
- (: ; cat t2 2>/dev/null) | sleep 1
----
-name: regression-14
-description:
- The command
- $ (foobar) 2> /dev/null
- generates no output under /bin/sh, but pdksh produces the error
- foobar: not found
- Also, the command
- $ foobar 2> /dev/null
- generates an error under /bin/sh and pdksh, but AT&T ksh88 produces
- no error (redirected to /dev/null).
-stdin:
- (you/should/not/see/this/error/1) 2> /dev/null
- you/should/not/see/this/error/2 2> /dev/null
- true
----
-name: regression-15
-description:
- The command
- $ whence foobar
- generates a blank line under pdksh and sets the exit status to 0.
- AT&T ksh88 generates no output and sets the exit status to 1. Also,
- the command
- $ whence foobar cat
- generates no output under AT&T ksh88 (pdksh generates a blank line
- and /bin/cat).
-stdin:
- whence does/not/exist > /dev/null
- echo 1: $?
- echo 2: $(whence does/not/exist | wc -l)
- echo 3: $(whence does/not/exist cat | wc -l)
-expected-stdout:
- 1: 1
- 2: 0
- 3: 0
----
-name: regression-16
-description:
- ${var%%expr} seems to be broken in many places. On the mips
- the commands
- $ read line < /etc/passwd
- $ echo $line
- root:0:1:...
- $ echo ${line%%:*}
- root
- $ echo $line
- root
- $
- change the value of line. On sun4s & pas, the echo ${line%%:*} doesn't
- work. Haven't checked elsewhere...
-script:
- read x
- y=$x
- echo ${x%%:*}
- echo $x
-stdin:
- root:asdjhasdasjhs:0:1:Root:/:/bin/sh
-expected-stdout:
- root
- root:asdjhasdasjhs:0:1:Root:/:/bin/sh
----
-name: regression-17
-description:
- The command
- . /foo/bar
- should set the exit status to non-zero (sh and AT&T ksh88 do).
- XXX doting a non existent file is a fatal error for a script
-stdin:
- . does/not/exist
-expected-exit: e != 0
-expected-stderr-pattern: /.?/
----
-name: regression-19
-description:
- Both of the following echos should produce the same thing, but don't:
- $ x=foo/bar
- $ echo ${x%/*}
- foo
- $ echo "${x%/*}"
- foo/bar
-stdin:
- x=foo/bar
- echo "${x%/*}"
-expected-stdout:
- foo
----
-name: regression-21
-description:
- backslash does not work as expected in case labels:
- $ x='-x'
- $ case $x in
- -\?) echo hi
- esac
- hi
- $ x='-?'
- $ case $x in
- -\\?) echo hi
- esac
- hi
- $
-stdin:
- case -x in
- -\?) echo fail
- esac
----
-name: regression-22
-description:
- Quoting backquotes inside backquotes doesn't work:
- $ echo `echo hi \`echo there\` folks`
- asks for more info. sh and AT&T ksh88 both echo
- hi there folks
-stdin:
- echo `echo hi \`echo there\` folks`
-expected-stdout:
- hi there folks
----
-name: regression-23
-description:
- )) is not treated `correctly':
- $ (echo hi ; (echo there ; echo folks))
- missing ((
- $
- instead of (as sh and ksh.att)
- $ (echo hi ; (echo there ; echo folks))
- hi
- there
- folks
- $
-stdin:
- ( : ; ( : ; echo hi))
-expected-stdout:
- hi
----
-name: regression-25
-description:
- Check reading stdin in a while loop. The read should only read
- a single line, not a whole stdio buffer; the cat should get
- the rest.
-stdin:
- (echo a; echo b) | while read x ; do
- echo $x
- cat > /dev/null
- done
-expected-stdout:
- a
----
-name: regression-26
-description:
- Check reading stdin in a while loop. The read should read both
- lines, not just the first.
-script:
- a=
- while [ "$a" != xxx ] ; do
- last=$x
- read x
- cat /dev/null | sed 's/x/y/'
- a=x$a
- done
- echo $last
-stdin:
- a
- b
-expected-stdout:
- b
----
-name: regression-27
-description:
- The command
- . /does/not/exist
- should cause a script to exit.
-stdin:
- . does/not/exist
- echo hi
-expected-exit: e != 0
-expected-stderr-pattern: /does\/not\/exist/
----
-name: regression-28
-description:
- variable assignements not detected well
-stdin:
- a.x=1 echo hi
-expected-exit: e != 0
-expected-stderr-pattern: /a\.x=1/
----
-name: regression-29
-description:
- alias expansion different from AT&T ksh88
-stdin:
- alias a='for ' b='i in'
- a b hi ; do echo $i ; done
-expected-stdout:
- hi
----
-name: regression-30
-description:
- strange characters allowed inside ${...}
-stdin:
- echo ${a{b}}
-expected-exit: e != 0
-expected-stderr-pattern: /.?/
----
-name: regression-31
-description:
- Does read handle partial lines correctly
-script:
- a= ret=
- while [ "$a" != xxx ] ; do
- read x y z
- ret=$?
- a=x$a
- done
- echo "[$x]"
- echo $ret
-stdin: !
- a A aA
- b B Bb
- c
-expected-stdout:
- [c]
- 1
----
-name: regression-32
-description:
- Does read set variables to null at eof?
-script:
- a=
- while [ "$a" != xxx ] ; do
- read x y z
- a=x$a
- done
- echo 1: ${x-x not set} ${y-y not set} ${z-z not set}
- echo 2: ${x:+x not null} ${y:+y not null} ${z:+z not null}
-stdin:
- a A Aa
- b B Bb
-expected-stdout:
- 1:
- 2:
----
-name: regression-33
-description:
- Does umask print a leading 0 when umask is 3 digits?
-stdin:
- # on MiNT, the first umask call seems to fail
- umask 022
- # now, the test proper
- umask 222
- umask
-expected-stdout:
- 0222
----
-name: regression-35
-description:
- Tempory files used for here-docs in functions get trashed after
- the function is parsed (before it is executed)
-stdin:
- f1() {
- cat <<- EOF
- F1
- EOF
- f2() {
- cat <<- EOF
- F2
- EOF
- }
- }
- f1
- f2
- unset -f f1
- f2
-expected-stdout:
- F1
- F2
- F2
----
-name: regression-36
-description:
- Command substitution breaks reading in while loop
- (test from <sjg at void.zen.oz.au>)
-stdin:
- (echo abcdef; echo; echo 123) |
- while read line
- do
- # the following line breaks it
- c=`echo $line | wc -c`
- echo $c
- done
-expected-stdout:
- 7
- 1
- 4
----
-name: regression-37
-description:
- Machines with broken times() (reported by <sjg at void.zen.oz.au>)
- time does not report correct real time
-stdin:
- time sleep 1
-expected-stderr-pattern: !/^\s*0\.0[\s\d]+real|^\s*real[\s]+0+\.0/
----
-name: regression-38
-description:
- set -e doesn't ignore exit codes for if/while/until/&&/||/!.
-arguments: !-e!
-stdin:
- if false; then echo hi ; fi
- false || true
- false && true
- while false; do echo hi; done
- echo ok
-expected-stdout:
- ok
----
-name: regression-39
-description:
- Only posh and oksh(2013-07) say “hi” below; FreeBSD sh,
- GNU bash in POSIX mode, dash, ksh93, mksh don’t. All of
- them exit 0. The POSIX behaviour is needed by BSD make.
-stdin:
- set -e
- echo `false; echo hi`
- echo $?
-expected-stdout:
-
- 0
----
-name: regression-40
-description:
- This used to cause a core dump
-env-setup: !RANDOM=12!
-stdin:
- echo hi
-expected-stdout:
- hi
----
-name: regression-41
-description:
- foo should be set to bar (should not be empty)
-stdin:
- foo=`
- echo bar`
- echo "($foo)"
-expected-stdout:
- (bar)
----
-name: regression-42
-description:
- Can't use command line assignments to assign readonly parameters.
-stdin:
- print '#!'"$__progname"'\nunset RANDOM\nexport | while IFS= read -r' \
- 'RANDOM; do eval '\''print -r -- "$RANDOM=$'\''"$RANDOM"'\'\"\'\; \
- done >env; chmod +x env; PATH=.:$PATH
- foo=bar
- readonly foo
- foo=stuff env | grep '^foo'
-expected-exit: e != 0
-expected-stderr-pattern:
- /read-only/
----
-name: regression-43
-description:
- Can subshells be prefixed by redirections (historical shells allow
- this)
-stdin:
- < /dev/null (sed 's/^/X/')
----
-name: regression-45
-description:
- Parameter assignments with [] recognised correctly
-stdin:
- FOO=*[12]
- BAR=abc[
- MORE=[abc]
- JUNK=a[bc
- echo "<$FOO>"
- echo "<$BAR>"
- echo "<$MORE>"
- echo "<$JUNK>"
-expected-stdout:
- <*[12]>
- <abc[>
- <[abc]>
- <a[bc>
----
-name: regression-46
-description:
- Check that alias expansion works in command substitutions and
- at the end of file.
-stdin:
- alias x='echo hi'
- FOO="`x` "
- echo "[$FOO]"
- x
-expected-stdout:
- [hi ]
- hi
----
-name: regression-47
-description:
- Check that aliases are fully read.
-stdin:
- alias x='echo hi;
- echo there'
- x
- echo done
-expected-stdout:
- hi
- there
- done
----
-name: regression-48
-description:
- Check that (here doc) temp files are not left behind after an exec.
-stdin:
- mkdir foo || exit 1
- TMPDIR=$PWD/foo "$__progname" <<- 'EOF'
- x() {
- sed 's/^/X /' << E_O_F
- hi
- there
- folks
- E_O_F
- echo "done ($?)"
- }
- echo=echo; [ -x /bin/echo ] && echo=/bin/echo
- exec $echo subtest-1 hi
- EOF
- echo subtest-1 foo/*
- TMPDIR=$PWD/foo "$__progname" <<- 'EOF'
- echo=echo; [ -x /bin/echo ] && echo=/bin/echo
- sed 's/^/X /' << E_O_F; exec $echo subtest-2 hi
- a
- few
- lines
- E_O_F
- EOF
- echo subtest-2 foo/*
-expected-stdout:
- subtest-1 hi
- subtest-1 foo/*
- X a
- X few
- X lines
- subtest-2 hi
- subtest-2 foo/*
----
-name: regression-49
-description:
- Check that unset params with attributes are reported by set, those
- sans attributes are not.
-stdin:
- unset FOO BAR
- echo X$FOO
- export BAR
- typeset -i BLAH
- set | grep FOO
- set | grep BAR
- set | grep BLAH
-expected-stdout:
- X
- BAR
- BLAH
----
-name: regression-50
-description:
- Check that aliases do not use continuation prompt after trailing
- semi-colon.
-file-setup: file 644 "envf"
- PS1=Y
- PS2=X
-env-setup: !ENV=./envf!
-need-ctty: yes
-arguments: !-i!
-stdin:
- alias foo='echo hi ; '
- foo
- foo echo there
-expected-stdout:
- hi
- hi
- there
-expected-stderr: !
- YYYY
----
-name: regression-51
-description:
- Check that set allows both +o and -o options on same command line.
-stdin:
- set a b c
- set -o noglob +o allexport
- echo A: $*, *
-expected-stdout:
- A: a b c, *
----
-name: regression-52
-description:
- Check that globbing works in pipelined commands
-file-setup: file 644 "envf"
- PS1=P
-file-setup: file 644 "abc"
- stuff
-env-setup: !ENV=./envf!
-need-ctty: yes
-arguments: !-i!
-stdin:
- sed 's/^/X /' < ab*
- echo mark 1
- sed 's/^/X /' < ab* | sed 's/^/Y /'
- echo mark 2
-expected-stdout:
- X stuff
- mark 1
- Y X stuff
- mark 2
-expected-stderr: !
- PPPPP
----
-name: regression-53
-description:
- Check that getopts works in functions
-stdin:
- bfunc() {
- echo bfunc: enter "(args: $*; OPTIND=$OPTIND)"
- while getopts B oc; do
- case $oc in
- (B)
- echo bfunc: B option
- ;;
- (*)
- echo bfunc: odd option "($oc)"
- ;;
- esac
- done
- echo bfunc: leave
- }
-
- function kfunc {
- echo kfunc: enter "(args: $*; OPTIND=$OPTIND)"
- while getopts K oc; do
- case $oc in
- (K)
- echo kfunc: K option
- ;;
- (*)
- echo bfunc: odd option "($oc)"
- ;;
- esac
- done
- echo kfunc: leave
- }
-
- set -- -f -b -k -l
- echo "line 1: OPTIND=$OPTIND"
- getopts kbfl optc
- echo "line 2: ret=$?, optc=$optc, OPTIND=$OPTIND"
- bfunc -BBB blah
- echo "line 3: OPTIND=$OPTIND"
- getopts kbfl optc
- echo "line 4: ret=$?, optc=$optc, OPTIND=$OPTIND"
- kfunc -KKK blah
- echo "line 5: OPTIND=$OPTIND"
- getopts kbfl optc
- echo "line 6: ret=$?, optc=$optc, OPTIND=$OPTIND"
- echo
-
- OPTIND=1
- set -- -fbkl
- echo "line 10: OPTIND=$OPTIND"
- getopts kbfl optc
- echo "line 20: ret=$?, optc=$optc, OPTIND=$OPTIND"
- bfunc -BBB blah
- echo "line 30: OPTIND=$OPTIND"
- getopts kbfl optc
- echo "line 40: ret=$?, optc=$optc, OPTIND=$OPTIND"
- kfunc -KKK blah
- echo "line 50: OPTIND=$OPTIND"
- getopts kbfl optc
- echo "line 60: ret=$?, optc=$optc, OPTIND=$OPTIND"
-expected-stdout:
- line 1: OPTIND=1
- line 2: ret=0, optc=f, OPTIND=2
- bfunc: enter (args: -BBB blah; OPTIND=2)
- bfunc: B option
- bfunc: B option
- bfunc: leave
- line 3: OPTIND=2
- line 4: ret=0, optc=b, OPTIND=3
- kfunc: enter (args: -KKK blah; OPTIND=1)
- kfunc: K option
- kfunc: K option
- kfunc: K option
- kfunc: leave
- line 5: OPTIND=3
- line 6: ret=0, optc=k, OPTIND=4
-
- line 10: OPTIND=1
- line 20: ret=0, optc=f, OPTIND=2
- bfunc: enter (args: -BBB blah; OPTIND=2)
- bfunc: B option
- bfunc: B option
- bfunc: leave
- line 30: OPTIND=2
- line 40: ret=1, optc=?, OPTIND=2
- kfunc: enter (args: -KKK blah; OPTIND=1)
- kfunc: K option
- kfunc: K option
- kfunc: K option
- kfunc: leave
- line 50: OPTIND=2
- line 60: ret=1, optc=?, OPTIND=2
----
-name: regression-54
-description:
- Check that ; is not required before the then in if (( ... )) then ...
-stdin:
- if (( 1 )) then
- echo ok dparen
- fi
- if [[ -n 1 ]] then
- echo ok dbrackets
- fi
-expected-stdout:
- ok dparen
- ok dbrackets
----
-name: regression-55
-description:
- Check ${foo:%bar} is allowed (ksh88 allows it...)
-stdin:
- x=fooXbarXblah
- echo 1 ${x%X*}
- echo 2 ${x:%X*}
- echo 3 ${x%%X*}
- echo 4 ${x:%%X*}
- echo 5 ${x#*X}
- echo 6 ${x:#*X}
- echo 7 ${x##*X}
- echo 8 ${x:##*X}
-expected-stdout:
- 1 fooXbar
- 2 fooXbar
- 3 foo
- 4 foo
- 5 barXblah
- 6 barXblah
- 7 blah
- 8 blah
----
-name: regression-57
-description:
- Check if typeset output is correct for
- uninitialised array elements.
-stdin:
- typeset -i xxx[4]
- echo A
- typeset -i | grep xxx | sed 's/^/ /'
- echo B
- typeset | grep xxx | sed 's/^/ /'
-
- xxx[1]=2+5
- echo M
- typeset -i | grep xxx | sed 's/^/ /'
- echo N
- typeset | grep xxx | sed 's/^/ /'
-expected-stdout:
- A
- xxx
- B
- typeset -i xxx
- M
- xxx[1]=7
- N
- set -A xxx
- typeset -i xxx[1]
----
-name: regression-58
-description:
- Check if trap exit is ok (exit not mistaken for signal name)
-stdin:
- trap 'echo hi' exit
- trap exit 1
-expected-stdout:
- hi
----
-name: regression-59
-description:
- Check if ${#array[*]} is calculated correctly.
-stdin:
- a[12]=hi
- a[8]=there
- echo ${#a[*]}
-expected-stdout:
- 2
----
-name: regression-60
-description:
- Check if default exit status is previous command
-stdin:
- (true; exit)
- echo A $?
- (false; exit)
- echo B $?
- ( (exit 103) ; exit)
- echo C $?
-expected-stdout:
- A 0
- B 1
- C 103
----
-name: regression-61
-description:
- Check if EXIT trap is executed for sub shells.
-stdin:
- trap 'echo parent exit' EXIT
- echo start
- (echo A; echo A last)
- echo B
- (echo C; trap 'echo sub exit' EXIT; echo C last)
- echo parent last
-expected-stdout:
- start
- A
- A last
- B
- C
- C last
- sub exit
- parent last
- parent exit
----
-name: regression-62
-description:
- Check if test -nt/-ot succeeds if second(first) file is missing.
-stdin:
- touch a
- test a -nt b && echo nt OK || echo nt BAD
- test b -ot a && echo ot OK || echo ot BAD
-expected-stdout:
- nt OK
- ot OK
----
-name: regression-63
-description:
- Check if typeset, export, and readonly work
-stdin:
- {
- echo FNORD-0
- FNORD_A=1
- FNORD_B=2
- FNORD_C=3
- FNORD_D=4
- FNORD_E=5
- FNORD_F=6
- FNORD_G=7
- FNORD_H=8
- integer FNORD_E FNORD_F FNORD_G FNORD_H
- export FNORD_C FNORD_D FNORD_G FNORD_H
- readonly FNORD_B FNORD_D FNORD_F FNORD_H
- echo FNORD-1
- export
- echo FNORD-2
- export -p
- echo FNORD-3
- readonly
- echo FNORD-4
- readonly -p
- echo FNORD-5
- typeset
- echo FNORD-6
- typeset -p
- echo FNORD-7
- typeset -
- echo FNORD-8
- } | fgrep FNORD
- fnord=(42 23)
- typeset -p fnord
- echo FNORD-9
-expected-stdout:
- FNORD-0
- FNORD-1
- FNORD_C
- FNORD_D
- FNORD_G
- FNORD_H
- FNORD-2
- export FNORD_C=3
- export FNORD_D=4
- export FNORD_G=7
- export FNORD_H=8
- FNORD-3
- FNORD_B
- FNORD_D
- FNORD_F
- FNORD_H
- FNORD-4
- readonly FNORD_B=2
- readonly FNORD_D=4
- readonly FNORD_F=6
- readonly FNORD_H=8
- FNORD-5
- typeset FNORD_A
- typeset -r FNORD_B
- typeset -x FNORD_C
- typeset -x -r FNORD_D
- typeset -i FNORD_E
- typeset -i -r FNORD_F
- typeset -i -x FNORD_G
- typeset -i -x -r FNORD_H
- FNORD-6
- typeset FNORD_A=1
- typeset -r FNORD_B=2
- typeset -x FNORD_C=3
- typeset -x -r FNORD_D=4
- typeset -i FNORD_E=5
- typeset -i -r FNORD_F=6
- typeset -i -x FNORD_G=7
- typeset -i -x -r FNORD_H=8
- FNORD-7
- FNORD_A=1
- FNORD_B=2
- FNORD_C=3
- FNORD_D=4
- FNORD_E=5
- FNORD_F=6
- FNORD_G=7
- FNORD_H=8
- FNORD-8
- set -A fnord
- typeset fnord[0]=42
- typeset fnord[1]=23
- FNORD-9
----
-name: regression-64
-description:
- Check that we can redefine functions calling time builtin
-stdin:
- t() {
- time >/dev/null
- }
- t 2>/dev/null
- t() {
- time
- }
----
-name: regression-65
-description:
- check for a regression with sleep builtin and signal mask
-category: !nojsig
-time-limit: 3
-stdin:
- sleep 1
- echo blub |&
- while read -p line; do :; done
- echo ok
-expected-stdout:
- ok
----
-name: regression-66
-description:
- Check that quoting is sane
-category: !nojsig
-stdin:
- ac_space=' '
- ac_newline='
- '
- set | grep ^ac_ |&
- set -A lines
- while IFS= read -pr line; do
- if [[ $line = *space* ]]; then
- lines[0]=$line
- else
- lines[1]=$line
- fi
- done
- for line in "${lines[@]}"; do
- print -r -- "$line"
- done
-expected-stdout:
- ac_space=' '
- ac_newline=$'\n'
----
-name: readonly-0
-description:
- Ensure readonly is honoured for assignments and unset
-stdin:
- "$__progname" -c 'u=x; echo $? $u .' || echo aborted, $?
- echo =
- "$__progname" -c 'readonly u; u=x; echo $? $u .' || echo aborted, $?
- echo =
- "$__progname" -c 'u=x; readonly u; unset u; echo $? $u .' || echo aborted, $?
-expected-stdout:
- 0 x .
- =
- aborted, 2
- =
- 1 x .
-expected-stderr-pattern:
- /read-only/
----
-name: readonly-1
-description:
- http://austingroupbugs.net/view.php?id=367 for export
-stdin:
- "$__progname" -c 'readonly foo; export foo=a; echo $?' || echo aborted, $?
-expected-stdout:
- aborted, 2
-expected-stderr-pattern:
- /read-only/
----
-name: readonly-2a
-description:
- Check that getopts works as intended, for readonly-2b to be valid
-stdin:
- "$__progname" -c 'set -- -a b; getopts a c; echo $? $c .; getopts a c; echo $? $c .' || echo aborted, $?
-expected-stdout:
- 0 a .
- 1 ? .
----
-name: readonly-2b
-description:
- http://austingroupbugs.net/view.php?id=367 for getopts
-stdin:
- "$__progname" -c 'readonly c; set -- -a b; getopts a c; echo $? $c .' || echo aborted, $?
-expected-stdout:
- 2 .
-expected-stderr-pattern:
- /read-only/
----
-name: readonly-3
-description:
- http://austingroupbugs.net/view.php?id=367 for read
-stdin:
- echo x | "$__progname" -c 'read s; echo $? $s .' || echo aborted, $?
- echo y | "$__progname" -c 'readonly s; read s; echo $? $s .' || echo aborted, $?
-expected-stdout:
- 0 x .
- 2 .
-expected-stderr-pattern:
- /read-only/
----
-name: syntax-1
-description:
- Check that lone ampersand is a syntax error
-stdin:
- &
-expected-exit: e != 0
-expected-stderr-pattern:
- /syntax error/
----
-name: xxx-quoted-newline-1
-description:
- Check that \<newline> works inside of ${}
-stdin:
- abc=2
- echo ${ab\
- c}
-expected-stdout:
- 2
----
-name: xxx-quoted-newline-2
-description:
- Check that \<newline> works at the start of a here document
-stdin:
- cat << EO\
- F
- hi
- EOF
-expected-stdout:
- hi
----
-name: xxx-quoted-newline-3
-description:
- Check that \<newline> works at the end of a here document
-stdin:
- cat << EOF
- hi
- EO\
- F
-expected-stdout:
- hi
----
-name: xxx-multi-assignment-cmd
-description:
- Check that assignments in a command affect subsequent assignments
- in the same command
-stdin:
- FOO=abc
- FOO=123 BAR=$FOO
- echo $BAR
-expected-stdout:
- 123
----
-name: xxx-multi-assignment-posix-cmd
-description:
- Check that the behaviour for multiple assignments with a
- command name matches POSIX. See:
- http://thread.gmane.org/gmane.comp.standards.posix.austin.general/1925
-stdin:
- X=a Y=b; X=$Y Y=$X "$__progname" -c 'echo 1 $X $Y .'; echo 2 $X $Y .
- unset X Y Z
- X=a Y=${X=b} Z=$X "$__progname" -c 'echo 3 $Z .'
- unset X Y Z
- X=a Y=${X=b} Z=$X; echo 4 $Z .
-expected-stdout:
- 1 b a .
- 2 a b .
- 3 b .
- 4 a .
----
-name: xxx-multi-assignment-posix-nocmd
-description:
- Check that the behaviour for multiple assignments with no
- command name matches POSIX (Debian #334182). See:
- http://thread.gmane.org/gmane.comp.standards.posix.austin.general/1925
-stdin:
- X=a Y=b; X=$Y Y=$X; echo 1 $X $Y .
-expected-stdout:
- 1 b b .
----
-name: xxx-multi-assignment-posix-subassign
-description:
- Check that the behaviour for multiple assignments matches POSIX:
- - The assignment words shall be expanded in the current execution
- environment.
- - The assignments happen in the temporary execution environment.
-stdin:
- unset X Y Z
- Z=a Y=${X:=b} sh -c 'echo +$X+ +$Y+ +$Z+'
- echo /$X/
- # Now for the special case:
- unset X Y Z
- X= Y=${X:=b} sh -c 'echo +$X+ +$Y+'
- echo /$X/
-expected-stdout:
- ++ +b+ +a+
- /b/
- ++ +b+
- /b/
----
-name: xxx-exec-environment-1
-description:
- Check to see if exec sets it's environment correctly
-stdin:
- print '#!'"$__progname"'\nunset RANDOM\nexport | while IFS= read -r' \
- 'RANDOM; do eval '\''print -r -- "$RANDOM=$'\''"$RANDOM"'\'\"\'\; \
- done >env; chmod +x env; PATH=.:$PATH
- FOO=bar exec env
-expected-stdout-pattern:
- /(^|.*\n)FOO=bar\n/
----
-name: xxx-exec-environment-2
-description:
- Check to make sure exec doesn't change environment if a program
- isn't exec-ed
-stdin:
- print '#!'"$__progname"'\nunset RANDOM\nexport | while IFS= read -r' \
- 'RANDOM; do eval '\''print -r -- "$RANDOM=$'\''"$RANDOM"'\'\"\'\; \
- done >env; chmod +x env; PATH=.:$PATH
- env >bar1
- FOO=bar exec; env >bar2
- cmp -s bar1 bar2
----
-name: exec-function-environment-1
-description:
- Check assignments in function calls and whether they affect
- the current execution environment (ksh93, SUSv4)
-stdin:
- f() { a=2; }; g() { b=3; echo y$c-; }; a=1 f; b=2; c=1 g
- echo x$a-$b- z$c-
-expected-stdout:
- y1-
- x2-3- z1-
----
-name: xxx-what-do-you-call-this-1
-stdin:
- echo "${foo:-"a"}*"
-expected-stdout:
- a*
----
-name: xxx-prefix-strip-1
-stdin:
- foo='a cdef'
- echo ${foo#a c}
-expected-stdout:
- def
----
-name: xxx-prefix-strip-2
-stdin:
- set a c
- x='a cdef'
- echo ${x#$*}
-expected-stdout:
- def
----
-name: xxx-variable-syntax-1
-stdin:
- echo ${:}
-expected-stderr-pattern:
- /bad substitution/
-expected-exit: 1
----
-name: xxx-variable-syntax-2
-stdin:
- set 0
- echo ${*:0}
-expected-stderr-pattern:
- /bad substitution/
-expected-exit: 1
----
-name: xxx-variable-syntax-3
-stdin:
- set -A foo 0
- echo ${foo[*]:0}
-expected-stderr-pattern:
- /bad substitution/
-expected-exit: 1
----
-name: xxx-substitution-eval-order
-description:
- Check order of evaluation of expressions
-stdin:
- i=1 x= y=
- set -A A abc def GHI j G k
- echo ${A[x=(i+=1)]#${A[y=(i+=2)]}}
- echo $x $y
-expected-stdout:
- HI
- 2 4
----
-name: xxx-set-option-1
-description:
- Check option parsing in set
-stdin:
- set -vsA foo -- A 1 3 2
- echo ${foo[*]}
-expected-stderr:
- echo ${foo[*]}
-expected-stdout:
- 1 2 3 A
----
-name: xxx-exec-1
-description:
- Check that exec exits for built-ins
-need-ctty: yes
-arguments: !-i!
-stdin:
- exec echo hi
- echo still herre
-expected-stdout:
- hi
-expected-stderr-pattern: /.*/
----
-name: xxx-while-1
-description:
- Check the return value of while loops
- XXX need to do same for for/select/until loops
-stdin:
- i=x
- while [ $i != xxx ] ; do
- i=x$i
- if [ $i = xxx ] ; then
- false
- continue
- fi
- done
- echo loop1=$?
-
- i=x
- while [ $i != xxx ] ; do
- i=x$i
- if [ $i = xxx ] ; then
- false
- break
- fi
- done
- echo loop2=$?
-
- i=x
- while [ $i != xxx ] ; do
- i=x$i
- false
- done
- echo loop3=$?
-expected-stdout:
- loop1=0
- loop2=0
- loop3=1
----
-name: xxx-status-1
-description:
- Check that blank lines don't clear $?
-need-ctty: yes
-arguments: !-i!
-stdin:
- (exit 1)
- echo $?
- (exit 1)
-
- echo $?
- true
-expected-stdout:
- 1
- 1
-expected-stderr-pattern: /.*/
----
-name: xxx-status-2
-description:
- Check that $? is preserved in subshells, includes, traps.
-stdin:
- (exit 1)
-
- echo blank: $?
-
- (exit 2)
- (echo subshell: $?)
-
- echo 'echo include: $?' > foo
- (exit 3)
- . ./foo
-
- trap 'echo trap: $?' ERR
- (exit 4)
- echo exit: $?
-expected-stdout:
- blank: 1
- subshell: 2
- include: 3
- trap: 4
- exit: 4
----
-name: xxx-clean-chars-1
-description:
- Check MAGIC character is stuffed correctly
-stdin:
- echo `echo [\xA3`
-expected-stdout:
- [\xA3
----
-name: xxx-param-subst-qmark-1
-description:
- Check suppresion of error message with null string. According to
- POSIX, it shouldn't print the error as 'word' isn't ommitted.
- ksh88/93, Solaris /bin/sh and /usr/xpg4/bin/sh all print the error,
- that's why the condition is reversed.
-stdin:
- unset foo
- x=
- echo x${foo?$x}
-expected-exit: 1
-# POSIX
-#expected-fail: yes
-#expected-stderr-pattern: !/not set/
-# common use
-expected-stderr-pattern: /parameter null or not set/
----
-name: xxx-param-_-1
-# fails due to weirdness of execv stuff
-category: !os:uwin-nt
-description:
- Check c flag is set.
-arguments: !-c!echo "[$-]"!
-expected-stdout-pattern: /^\[.*c.*\]$/
----
-name: tilde-expand-1
-description:
- Check tilde expansion after equal signs
-env-setup: !HOME=/sweet!
-stdin:
- echo ${A=a=}~ b=~ c=d~ ~
- set +o braceexpand
- unset A
- echo ${A=a=}~ b=~ c=d~ ~
-expected-stdout:
- a=/sweet b=/sweet c=d~ /sweet
- a=~ b=~ c=d~ /sweet
----
-name: tilde-expand-2
-description:
- Check tilde expansion works
-env-setup: !HOME=/sweet!
-stdin:
- wd=$PWD
- cd /
- plus=$(print -r -- ~+)
- minus=$(print -r -- ~-)
- nix=$(print -r -- ~)
- [[ $plus = / ]]; echo one $? .
- [[ $minus = "$wd" ]]; echo two $? .
- [[ $nix = /sweet ]]; echo nix $? .
-expected-stdout:
- one 0 .
- two 0 .
- nix 0 .
----
-name: exit-err-1
-description:
- Check some "exit on error" conditions
-stdin:
- print '#!'"$__progname"'\nexec "$1"' >env
- print '#!'"$__progname"'\nexit 1' >false
- chmod +x env false
- PATH=.:$PATH
- set -ex
- env false && echo something
- echo END
-expected-stdout:
- END
-expected-stderr:
- + env false
- + echo END
----
-name: exit-err-2
-description:
- Check some "exit on error" edge conditions (POSIXly)
-stdin:
- print '#!'"$__progname"'\nexec "$1"' >env
- print '#!'"$__progname"'\nexit 1' >false
- print '#!'"$__progname"'\nexit 0' >true
- chmod +x env false
- PATH=.:$PATH
- set -ex
- if env true; then
- env false && echo something
- fi
- echo END
-expected-stdout:
- END
-expected-stderr:
- + env true
- + env false
- + echo END
----
-name: exit-err-3
-description:
- pdksh regression which AT&T ksh does right
- TFM says: [set] -e | errexit
- Exit (after executing the ERR trap) ...
-stdin:
- trap 'echo EXIT' EXIT
- trap 'echo ERR' ERR
- set -e
- cd /XXXXX 2>/dev/null
- echo DONE
- exit 0
-expected-stdout:
- ERR
- EXIT
-expected-exit: e != 0
----
-name: exit-err-4
-description:
- "set -e" test suite (POSIX)
-stdin:
- set -e
- echo pre
- if true ; then
- false && echo foo
- fi
- echo bar
-expected-stdout:
- pre
- bar
----
-name: exit-err-5
-description:
- "set -e" test suite (POSIX)
-stdin:
- set -e
- foo() {
- while [ "$1" ]; do
- for E in $x; do
- [ "$1" = "$E" ] && { shift ; continue 2 ; }
- done
- x="$x $1"
- shift
- done
- echo $x
- }
- echo pre
- foo a b b c
- echo post
-expected-stdout:
- pre
- a b c
- post
----
-name: exit-err-6
-description:
- "set -e" test suite (BSD make)
-category: os:mirbsd
-stdin:
- mkdir zd zd/a zd/b
- print 'all:\n\t at echo eins\n\t at exit 42\n' >zd/a/Makefile
- print 'all:\n\t at echo zwei\n' >zd/b/Makefile
- wd=$(pwd)
- set -e
- for entry in a b; do ( set -e; if [[ -d $wd/zd/$entry.i386 ]]; then _newdir_="$entry.i386"; else _newdir_="$entry"; fi; if [[ -z $_THISDIR_ ]]; then _nextdir_="$_newdir_"; else _nextdir_="$_THISDIR_/$_newdir_"; fi; _makefile_spec_=; [[ ! -f $wd/zd/$_newdir_/Makefile.bsd-wrapper ]] || _makefile_spec_="-f Makefile.bsd-wrapper"; subskipdir=; for skipdir in ; do subentry=${skipdir#$entry}; if [[ $subentry != $skipdir ]]; then if [[ -z $subentry ]]; then echo "($_nextdir_ skipped)"; break; fi; subskipdir="$subskipdir ${subentry#/}"; fi; done; if [[ -z $skipdir || -n $subentry ]]; then echo "===> $_nextdir_"; cd $wd/zd/$_newdir_; make SKIPDIR="$subskipdir" $_makefile_spec_ _THISDIR_="$_nextdir_" all; fi; ) done 2>&1 | sed "s!$wd!WD!g"
-expected-stdout:
- ===> a
- eins
- *** Error code 42
-
- Stop in WD/zd/a (line 2 of Makefile).
----
-name: exit-err-7
-description:
- "set -e" regression (LP#1104543)
-stdin:
- set -e
- bla() {
- [ -x $PWD/nonexistant ] && $PWD/nonexistant
- }
- echo x
- bla
- echo y$?
-expected-stdout:
- x
-expected-exit: 1
----
-name: exit-err-8
-description:
- "set -e" regression (Debian #700526)
-stdin:
- set -e
- _db_cmd() { return $1; }
- db_input() { _db_cmd 30; }
- db_go() { _db_cmd 0; }
- db_input || :
- db_go
- exit 0
----
-name: exit-enoent-1
-description:
- SUSv4 says that the shell should exit with 126/127 in some situations
-stdin:
- i=0
- (echo; echo :) >x
- "$__progname" ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
- "$__progname" -c ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
- echo exit 42 >x
- "$__progname" ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
- "$__progname" -c ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
- rm -f x
- "$__progname" ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
- "$__progname" -c ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
-expected-stdout:
- 0 0 .
- 1 126 .
- 2 42 .
- 3 126 .
- 4 127 .
- 5 127 .
----
-name: exit-eval-1
-description:
- Check eval vs substitution exit codes (ksh93 alike)
-stdin:
- (exit 12)
- eval $(false)
- echo A $?
- (exit 12)
- eval ' $(false)'
- echo B $?
- (exit 12)
- eval " $(false)"
- echo C $?
- (exit 12)
- eval "eval $(false)"
- echo D $?
- (exit 12)
- eval 'eval '"$(false)"
- echo E $?
- IFS="$IFS:"
- (exit 12)
- eval $(echo :; false)
- echo F $?
- echo -n "G "
- (exit 12)
- eval 'echo $?'
- echo H $?
-expected-stdout:
- A 0
- B 1
- C 0
- D 0
- E 0
- F 0
- G 12
- H 0
----
-name: exit-trap-1
-description:
- Check that "exit" with no arguments behaves SUSv4 conformant.
-stdin:
- trap 'echo hi; exit' EXIT
- exit 9
-expected-stdout:
- hi
-expected-exit: 9
----
-name: exit-trap-2
-description:
- Check that ERR and EXIT traps are run just like ksh93 does.
- GNU bash does not run ERtrap in ±e eval-undef but runs it
- twice (bug?) in +e eval-false, so does ksh93 (bug?), which
- also has a bug to continue execution (echoing "and out" and
- returning 0) in +e eval-undef.
-file-setup: file 644 "x"
- v=; unset v
- trap 'echo EXtrap' EXIT
- trap 'echo ERtrap' ERR
- set $1
- echo "and run $2"
- eval $2
- echo and out
-file-setup: file 644 "xt"
- v=; unset v
- trap 'echo EXtrap' EXIT
- trap 'echo ERtrap' ERR
- set $1
- echo 'and run true'
- true
- echo and out
-file-setup: file 644 "xf"
- v=; unset v
- trap 'echo EXtrap' EXIT
- trap 'echo ERtrap' ERR
- set $1
- echo 'and run false'
- false
- echo and out
-file-setup: file 644 "xu"
- v=; unset v
- trap 'echo EXtrap' EXIT
- trap 'echo ERtrap' ERR
- set $1
- echo 'and run ${v?}'
- ${v?}
- echo and out
-stdin:
- runtest() {
- rm -f rc
- (
- "$__progname" "$@"
- echo $? >rc
- ) 2>&1 | sed \
- -e 's/parameter not set/parameter null or not set/' \
- -e 's/[[]6]//' -e 's/: eval: line 1//' -e 's/: line 6//' \
- -e "s^${__progname%.exe}\.*e*x*e*: <stdin>\[[0-9]*]PROG"
- }
- xe=-e
- echo : $xe
- runtest x $xe true
- echo = eval-true $(<rc) .
- runtest x $xe false
- echo = eval-false $(<rc) .
- runtest x $xe '${v?}'
- echo = eval-undef $(<rc) .
- runtest xt $xe
- echo = noeval-true $(<rc) .
- runtest xf $xe
- echo = noeval-false $(<rc) .
- runtest xu $xe
- echo = noeval-undef $(<rc) .
- xe=+e
- echo : $xe
- runtest x $xe true
- echo = eval-true $(<rc) .
- runtest x $xe false
- echo = eval-false $(<rc) .
- runtest x $xe '${v?}'
- echo = eval-undef $(<rc) .
- runtest xt $xe
- echo = noeval-true $(<rc) .
- runtest xf $xe
- echo = noeval-false $(<rc) .
- runtest xu $xe
- echo = noeval-undef $(<rc) .
-expected-stdout:
- : -e
- and run true
- and out
- EXtrap
- = eval-true 0 .
- and run false
- ERtrap
- EXtrap
- = eval-false 1 .
- and run ${v?}
- x: v: parameter null or not set
- ERtrap
- EXtrap
- = eval-undef 1 .
- and run true
- and out
- EXtrap
- = noeval-true 0 .
- and run false
- ERtrap
- EXtrap
- = noeval-false 1 .
- and run ${v?}
- xu: v: parameter null or not set
- EXtrap
- = noeval-undef 1 .
- : +e
- and run true
- and out
- EXtrap
- = eval-true 0 .
- and run false
- ERtrap
- and out
- EXtrap
- = eval-false 0 .
- and run ${v?}
- x: v: parameter null or not set
- ERtrap
- EXtrap
- = eval-undef 1 .
- and run true
- and out
- EXtrap
- = noeval-true 0 .
- and run false
- ERtrap
- and out
- EXtrap
- = noeval-false 0 .
- and run ${v?}
- xu: v: parameter null or not set
- EXtrap
- = noeval-undef 1 .
----
-name: exit-trap-interactive
-description:
- Check that interactive shell doesn't exit via EXIT trap on syntax error
-arguments: !-i!
-stdin:
- trap -- EXIT
- echo Syntax error <
- echo 'After error 1'
- trap 'echo Exit trap' EXIT
- echo Syntax error <
- echo 'After error 2'
- trap 'echo Exit trap' EXIT
- exit
- echo 'After exit'
-expected-stdout:
- After error 1
- After error 2
- Exit trap
-expected-stderr-pattern:
- /syntax error: 'newline' unexpected/
----
-name: test-stlt-1
-description:
- Check that test also can handle string1 < string2 etc.
-stdin:
- test 2005/10/08 '<' 2005/08/21 && echo ja || echo nein
- test 2005/08/21 \< 2005/10/08 && echo ja || echo nein
- test 2005/10/08 '>' 2005/08/21 && echo ja || echo nein
- test 2005/08/21 \> 2005/10/08 && echo ja || echo nein
-expected-stdout:
- nein
- ja
- ja
- nein
-expected-stderr-pattern: !/unexpected op/
----
-name: test-precedence-1
-description:
- Check a weird precedence case (and POSIX echo)
-stdin:
- test \( -f = -f \)
- rv=$?
- echo $rv
-expected-stdout:
- 0
----
-name: test-option-1
-description:
- Test the test -o operator
-stdin:
- runtest() {
- test -o $1; echo $?
- [ -o $1 ]; echo $?
- [[ -o $1 ]]; echo $?
- }
- if_test() {
- test -o $1 -o -o !$1; echo $?
- [ -o $1 -o -o !$1 ]; echo $?
- [[ -o $1 || -o !$1 ]]; echo $?
- test -o ?$1; echo $?
- }
- echo 0y $(if_test utf8-mode) =
- echo 0n $(if_test utf8-hack) =
- echo 1= $(runtest utf8-hack) =
- echo 2= $(runtest !utf8-hack) =
- echo 3= $(runtest ?utf8-hack) =
- set +U
- echo 1+ $(runtest utf8-mode) =
- echo 2+ $(runtest !utf8-mode) =
- echo 3+ $(runtest ?utf8-mode) =
- set -U
- echo 1- $(runtest utf8-mode) =
- echo 2- $(runtest !utf8-mode) =
- echo 3- $(runtest ?utf8-mode) =
- echo = short flags =
- echo 0y $(if_test -U) =
- echo 0y $(if_test +U) =
- echo 0n $(if_test -_) =
- echo 0n $(if_test -U-) =
- echo 1= $(runtest -_) =
- echo 2= $(runtest !-_) =
- echo 3= $(runtest ?-_) =
- set +U
- echo 1+ $(runtest -U) =
- echo 2+ $(runtest !-U) =
- echo 3+ $(runtest ?-U) =
- echo 1+ $(runtest +U) =
- echo 2+ $(runtest !+U) =
- echo 3+ $(runtest ?+U) =
- set -U
- echo 1- $(runtest -U) =
- echo 2- $(runtest !-U) =
- echo 3- $(runtest ?-U) =
- echo 1- $(runtest +U) =
- echo 2- $(runtest !+U) =
- echo 3- $(runtest ?+U) =
-expected-stdout:
- 0y 0 0 0 0 =
- 0n 1 1 1 1 =
- 1= 1 1 1 =
- 2= 1 1 1 =
- 3= 1 1 1 =
- 1+ 1 1 1 =
- 2+ 0 0 0 =
- 3+ 0 0 0 =
- 1- 0 0 0 =
- 2- 1 1 1 =
- 3- 0 0 0 =
- = short flags =
- 0y 0 0 0 0 =
- 0y 0 0 0 0 =
- 0n 1 1 1 1 =
- 0n 1 1 1 1 =
- 1= 1 1 1 =
- 2= 1 1 1 =
- 3= 1 1 1 =
- 1+ 1 1 1 =
- 2+ 0 0 0 =
- 3+ 0 0 0 =
- 1+ 1 1 1 =
- 2+ 0 0 0 =
- 3+ 0 0 0 =
- 1- 0 0 0 =
- 2- 1 1 1 =
- 3- 0 0 0 =
- 1- 0 0 0 =
- 2- 1 1 1 =
- 3- 0 0 0 =
----
-name: mkshrc-1
-description:
- Check that ~/.mkshrc works correctly.
- Part 1: verify user environment is not read (internal)
-stdin:
- echo x $FNORD
-expected-stdout:
- x
----
-name: mkshrc-2a
-description:
- Check that ~/.mkshrc works correctly.
- Part 2: verify mkshrc is not read (non-interactive shells)
-file-setup: file 644 ".mkshrc"
- FNORD=42
-env-setup: !HOME=.!ENV=!
-stdin:
- echo x $FNORD
-expected-stdout:
- x
----
-name: mkshrc-2b
-description:
- Check that ~/.mkshrc works correctly.
- Part 2: verify mkshrc can be read (interactive shells)
-file-setup: file 644 ".mkshrc"
- FNORD=42
-need-ctty: yes
-arguments: !-i!
-env-setup: !HOME=.!ENV=!PS1=!
-stdin:
- echo x $FNORD
-expected-stdout:
- x 42
-expected-stderr-pattern:
- /(# )*/
----
-name: mkshrc-3
-description:
- Check that ~/.mkshrc works correctly.
- Part 3: verify mkshrc can be turned off
-file-setup: file 644 ".mkshrc"
- FNORD=42
-env-setup: !HOME=.!ENV=nonexistant!
-stdin:
- echo x $FNORD
-expected-stdout:
- x
----
-name: sh-mode-1
-description:
- Check that sh mode turns braceexpand off
- and that that works correctly
-stdin:
- set -o braceexpand
- set +o sh
- [[ $(set +o) == *@(-o sh)@(| *) ]] && echo sh || echo nosh
- [[ $(set +o) == *@(-o braceexpand)@(| *) ]] && echo brex || echo nobrex
- echo {a,b,c}
- set +o braceexpand
- echo {a,b,c}
- set -o braceexpand
- echo {a,b,c}
- set -o sh
- echo {a,b,c}
- [[ $(set +o) == *@(-o sh)@(| *) ]] && echo sh || echo nosh
- [[ $(set +o) == *@(-o braceexpand)@(| *) ]] && echo brex || echo nobrex
- set -o braceexpand
- echo {a,b,c}
- [[ $(set +o) == *@(-o sh)@(| *) ]] && echo sh || echo nosh
- [[ $(set +o) == *@(-o braceexpand)@(| *) ]] && echo brex || echo nobrex
-expected-stdout:
- nosh
- brex
- a b c
- {a,b,c}
- a b c
- {a,b,c}
- sh
- nobrex
- a b c
- sh
- brex
----
-name: sh-mode-2a
-description:
- Check that posix or sh mode is *not* automatically turned on
-category: !binsh
-stdin:
- ln -s "$__progname" ksh || cp "$__progname" ksh
- ln -s "$__progname" sh || cp "$__progname" sh
- ln -s "$__progname" ./-ksh || cp "$__progname" ./-ksh
- ln -s "$__progname" ./-sh || cp "$__progname" ./-sh
- for shell in {,-}{,k}sh; do
- print -- $shell $(./$shell +l -c \
- '[[ $(set +o) == *"-o "@(sh|posix)@(| *) ]] && echo sh || echo nosh')
- done
-expected-stdout:
- sh nosh
- ksh nosh
- -sh nosh
- -ksh nosh
----
-name: sh-mode-2b
-description:
- Check that posix or sh mode *is* automatically turned on
-category: binsh
-stdin:
- ln -s "$__progname" ksh || cp "$__progname" ksh
- ln -s "$__progname" sh || cp "$__progname" sh
- ln -s "$__progname" ./-ksh || cp "$__progname" ./-ksh
- ln -s "$__progname" ./-sh || cp "$__progname" ./-sh
- for shell in {,-}{,k}sh; do
- print -- $shell $(./$shell +l -c \
- '[[ $(set +o) == *"-o "@(sh|posix)@(| *) ]] && echo sh || echo nosh')
- done
-expected-stdout:
- sh sh
- ksh nosh
- -sh sh
- -ksh nosh
----
-name: pipeline-1
-description:
- pdksh bug: last command of a pipeline is executed in a
- subshell - make sure it still is, scripts depend on it
-file-setup: file 644 "abcx"
-file-setup: file 644 "abcy"
-stdin:
- echo *
- echo a | while read d; do
- echo $d
- echo $d*
- echo *
- set -o noglob
- echo $d*
- echo *
- done
- echo *
-expected-stdout:
- abcx abcy
- a
- abcx abcy
- abcx abcy
- a*
- *
- abcx abcy
----
-name: pipeline-2
-description:
- check that co-processes work with TCOMs, TPIPEs and TPARENs
-category: !nojsig
-stdin:
- "$__progname" -c 'i=100; echo hi |& while read -p line; do echo "$((i++)) $line"; done'
- "$__progname" -c 'i=200; echo hi | cat |& while read -p line; do echo "$((i++)) $line"; done'
- "$__progname" -c 'i=300; (echo hi | cat) |& while read -p line; do echo "$((i++)) $line"; done'
-expected-stdout:
- 100 hi
- 200 hi
- 300 hi
----
-name: pipeline-3
-description:
- Check that PIPESTATUS does what it's supposed to
-stdin:
- echo 1 $PIPESTATUS .
- echo 2 ${PIPESTATUS[0]} .
- echo 3 ${PIPESTATUS[1]} .
- (echo x; exit 12) | (cat; exit 23) | (cat; exit 42)
- echo 5 $? , $PIPESTATUS , ${PIPESTATUS[0]} , ${PIPESTATUS[1]} , ${PIPESTATUS[2]} , ${PIPESTATUS[3]} .
- echo 6 ${PIPESTATUS[0]} .
- set | fgrep PIPESTATUS
- echo 8 $(set | fgrep PIPESTATUS) .
-expected-stdout:
- 1 0 .
- 2 0 .
- 3 .
- x
- 5 42 , 12 , 12 , 23 , 42 , .
- 6 0 .
- PIPESTATUS[0]=0
- 8 PIPESTATUS[0]=0 PIPESTATUS[1]=0 .
----
-name: pipeline-4
-description:
- Check that "set -o pipefail" does what it's supposed to
-stdin:
- echo 1 "$("$__progname" -c '(exit 12) | (exit 23) | (exit 42); echo $?')" .
- echo 2 "$("$__progname" -c '! (exit 12) | (exit 23) | (exit 42); echo $?')" .
- echo 3 "$("$__progname" -o pipefail -c '(exit 12) | (exit 23) | (exit 42); echo $?')" .
- echo 4 "$("$__progname" -o pipefail -c '! (exit 12) | (exit 23) | (exit 42); echo $?')" .
- echo 5 "$("$__progname" -c '(exit 23) | (exit 42) | :; echo $?')" .
- echo 6 "$("$__progname" -c '! (exit 23) | (exit 42) | :; echo $?')" .
- echo 7 "$("$__progname" -o pipefail -c '(exit 23) | (exit 42) | :; echo $?')" .
- echo 8 "$("$__progname" -o pipefail -c '! (exit 23) | (exit 42) | :; echo $?')" .
-expected-stdout:
- 1 42 .
- 2 0 .
- 3 42 .
- 4 0 .
- 5 0 .
- 6 1 .
- 7 42 .
- 8 0 .
----
-name: persist-history-1
-description:
- Check if persistent history saving works
-category: !no-histfile
-need-ctty: yes
-arguments: !-i!
-env-setup: !ENV=./Env!HISTFILE=hist.file!
-file-setup: file 644 "Env"
- PS1=X
-stdin:
- cat hist.file
-expected-stdout-pattern:
- /cat hist.file/
-expected-stderr-pattern:
- /^X*$/
----
-name: typeset-1
-description:
- Check that global does what typeset is supposed to do
-stdin:
- set -A arrfoo 65
- foo() {
- global -Uui16 arrfoo[*]
- }
- echo before ${arrfoo[0]} .
- foo
- echo after ${arrfoo[0]} .
- set -A arrbar 65
- bar() {
- echo inside before ${arrbar[0]} .
- arrbar[0]=97
- echo inside changed ${arrbar[0]} .
- global -Uui16 arrbar[*]
- echo inside typeset ${arrbar[0]} .
- arrbar[0]=48
- echo inside changed ${arrbar[0]} .
- }
- echo before ${arrbar[0]} .
- bar
- echo after ${arrbar[0]} .
-expected-stdout:
- before 65 .
- after 16#41 .
- before 65 .
- inside before 65 .
- inside changed 97 .
- inside typeset 16#61 .
- inside changed 16#30 .
- after 16#30 .
----
-name: typeset-padding-1
-description:
- Check if left/right justification works as per TFM
-stdin:
- typeset -L10 ln=0hall0
- typeset -R10 rn=0hall0
- typeset -ZL10 lz=0hall0
- typeset -ZR10 rz=0hall0
- typeset -Z10 rx=" hallo "
- echo "<$ln> <$rn> <$lz> <$rz> <$rx>"
-expected-stdout:
- <0hall0 > < 0hall0> <hall0 > <00000hall0> <0000 hallo>
----
-name: typeset-padding-2
-description:
- Check if base-!10 integers are padded right
-stdin:
- typeset -Uui16 -L9 ln=16#1
- typeset -Uui16 -R9 rn=16#1
- typeset -Uui16 -Z9 zn=16#1
- typeset -L9 ls=16#1
- typeset -R9 rs=16#1
- typeset -Z9 zs=16#1
- echo "<$ln> <$rn> <$zn> <$ls> <$rs> <$zs>"
-expected-stdout:
- <16#1 > < 16#1> <16#000001> <16#1 > < 16#1> <0000016#1>
----
-name: utf8bom-1
-description:
- Check that the UTF-8 Byte Order Mark is ignored as the first
- multibyte character of the shell input (with -c, from standard
- input, as file, or as eval argument), but nowhere else
-# breaks on Mac OSX (HFS+ non-standard Unicode canonical decomposition)
-category: !os:darwin
-stdin:
- mkdir foo
- print '#!/bin/sh\necho ohne' >foo/fnord
- print '#!/bin/sh\necho mit' >foo/fnord
- print 'fnord\nfnord\nfnord\nfnord' >foo/bar
- print eval \''fnord\nfnord\nfnord\nfnord'\' >foo/zoo
- set -A anzahl -- foo/*
- echo got ${#anzahl[*]} files
- chmod +x foo/*
- export PATH=$(pwd)/foo:$PATH
- "$__progname" -c 'fnord'
- echo =
- "$__progname" -c 'fnord; fnord; fnord; fnord'
- echo =
- "$__progname" foo/bar
- echo =
- "$__progname" <foo/bar
- echo =
- "$__progname" foo/zoo
- echo =
- "$__progname" -c 'echo : $(fnord)'
- rm -rf foo
-expected-stdout:
- got 4 files
- ohne
- =
- ohne
- ohne
- mit
- ohne
- =
- ohne
- ohne
- mit
- ohne
- =
- ohne
- ohne
- mit
- ohne
- =
- ohne
- ohne
- mit
- ohne
- =
- : ohne
----
-name: utf8bom-2
-description:
- Check that we can execute BOM-shebangs (failures not fatal)
- XXX if the OS can already execute them, we lose
- note: cygwin execve(2) doesn't return to us with ENOEXEC, we lose
- note: Ultrix perl5 t4 returns 65280 (exit-code 255) and no text
-need-pass: no
-category: !os:cygwin,!os:msys,!os:ultrix,!os:uwin-nt,!smksh
-env-setup: !FOO=BAR!
-stdin:
- print '#!'"$__progname"'\nprint "1 a=$ENV{FOO}";' >t1
- print '#!'"$__progname"'\nprint "2 a=$ENV{FOO}";' >t2
- print '#!'"$__perlname"'\nprint "3 a=$ENV{FOO}\n";' >t3
- print '#!'"$__perlname"'\nprint "4 a=$ENV{FOO}\n";' >t4
- chmod +x t?
- ./t1
- ./t2
- ./t3
- ./t4
-expected-stdout:
- 1 a=/nonexistant{FOO}
- 2 a=/nonexistant{FOO}
- 3 a=BAR
- 4 a=BAR
-expected-stderr-pattern:
- /(Unrecognized character .... ignored at \..t4 line 1)*/
----
-name: utf8opt-1a
-description:
- Check that the utf8-mode flag is not set at non-interactive startup
-category: !os:hpux
-env-setup: !PS1=!PS2=!LC_CTYPE=en_US.UTF-8!
-stdin:
- if [[ $- = *U* ]]; then
- echo is set
- else
- echo is not set
- fi
-expected-stdout:
- is not set
----
-name: utf8opt-1b
-description:
- Check that the utf8-mode flag is not set at non-interactive startup
-category: os:hpux
-env-setup: !PS1=!PS2=!LC_CTYPE=en_US.utf8!
-stdin:
- if [[ $- = *U* ]]; then
- echo is set
- else
- echo is not set
- fi
-expected-stdout:
- is not set
----
-name: utf8opt-2a
-description:
- Check that the utf8-mode flag is set at interactive startup.
- -DMKSH_ASSUME_UTF8=0 => expected failure, please ignore
- -DMKSH_ASSUME_UTF8=1 => not expected, please investigate
- -UMKSH_ASSUME_UTF8 => not expected, but if your OS is old,
- try passing HAVE_SETLOCALE_CTYPE=0 to Build.sh
-need-pass: no
-category: !os:hpux,!os:msys
-need-ctty: yes
-arguments: !-i!
-env-setup: !PS1=!PS2=!LC_CTYPE=en_US.UTF-8!
-stdin:
- if [[ $- = *U* ]]; then
- echo is set
- else
- echo is not set
- fi
-expected-stdout:
- is set
-expected-stderr-pattern:
- /(# )*/
----
-name: utf8opt-2b
-description:
- Check that the utf8-mode flag is set at interactive startup
- Expected failure if -DMKSH_ASSUME_UTF8=0
-category: os:hpux
-need-ctty: yes
-arguments: !-i!
-env-setup: !PS1=!PS2=!LC_CTYPE=en_US.utf8!
-stdin:
- if [[ $- = *U* ]]; then
- echo is set
- else
- echo is not set
- fi
-expected-stdout:
- is set
-expected-stderr-pattern:
- /(# )*/
----
-name: utf8opt-3a
-description:
- Ensure ±U on the command line is honoured
- (these two tests may pass falsely depending on CPPFLAGS)
-stdin:
- export i=0
- code='if [[ $- = *U* ]]; then echo $i on; else echo $i off; fi'
- let i++; "$__progname" -U -c "$code"
- let i++; "$__progname" +U -c "$code"
- echo $((++i)) done
-expected-stdout:
- 1 on
- 2 off
- 3 done
----
-name: utf8opt-3b
-description:
- Ensure ±U on the command line is honoured, interactive shells
-need-ctty: yes
-stdin:
- export i=0
- code='if [[ $- = *U* ]]; then echo $i on; else echo $i off; fi'
- let i++; "$__progname" -U -ic "$code"
- let i++; "$__progname" +U -ic "$code"
- echo $((++i)) done
-expected-stdout:
- 1 on
- 2 off
- 3 done
----
-name: aliases-1
-description:
- Check if built-in shell aliases are okay
-category: !android,!arge
-stdin:
- alias
- typeset -f
-expected-stdout:
- autoload='typeset -fu'
- functions='typeset -f'
- hash='alias -t'
- history='fc -l'
- integer='typeset -i'
- local=typeset
- login='exec login'
- nameref='typeset -n'
- nohup='nohup '
- r='fc -e -'
- source='PATH=$PATH:. command .'
- stop='kill -STOP'
- suspend='kill -STOP $$'
- type='whence -v'
----
-name: aliases-1-hartz4
-description:
- Check if built-in shell aliases are okay
-category: android,arge
-stdin:
- alias
- typeset -f
-expected-stdout:
- autoload='typeset -fu'
- functions='typeset -f'
- hash='alias -t'
- history='fc -l'
- integer='typeset -i'
- local=typeset
- login='exec login'
- nameref='typeset -n'
- nohup='nohup '
- r='fc -e -'
- source='PATH=$PATH:. command .'
- type='whence -v'
----
-name: aliases-2a
-description:
- Check if “set -o sh” disables built-in aliases (except a few)
-category: disabled
-arguments: !-o!sh!
-stdin:
- alias
- typeset -f
-expected-stdout:
- integer='typeset -i'
- local=typeset
----
-name: aliases-3a
-description:
- Check if running as sh disables built-in aliases (except a few)
-category: disabled
-stdin:
- cp "$__progname" sh
- ./sh -c 'alias; typeset -f'
- rm -f sh
-expected-stdout:
- integer='typeset -i'
- local=typeset
----
-name: aliases-2b
-description:
- Check if “set -o sh” does not influence built-in aliases
-category: !android,!arge
-arguments: !-o!sh!
-stdin:
- alias
- typeset -f
-expected-stdout:
- autoload='typeset -fu'
- functions='typeset -f'
- hash='alias -t'
- history='fc -l'
- integer='typeset -i'
- local=typeset
- login='exec login'
- nameref='typeset -n'
- nohup='nohup '
- r='fc -e -'
- source='PATH=$PATH:. command .'
- stop='kill -STOP'
- suspend='kill -STOP $$'
- type='whence -v'
----
-name: aliases-3b
-description:
- Check if running as sh does not influence built-in aliases
-category: !android,!arge
-stdin:
- cp "$__progname" sh
- ./sh -c 'alias; typeset -f'
- rm -f sh
-expected-stdout:
- autoload='typeset -fu'
- functions='typeset -f'
- hash='alias -t'
- history='fc -l'
- integer='typeset -i'
- local=typeset
- login='exec login'
- nameref='typeset -n'
- nohup='nohup '
- r='fc -e -'
- source='PATH=$PATH:. command .'
- stop='kill -STOP'
- suspend='kill -STOP $$'
- type='whence -v'
----
-name: aliases-2b-hartz4
-description:
- Check if “set -o sh” does not influence built-in aliases
-category: android,arge
-arguments: !-o!sh!
-stdin:
- alias
- typeset -f
-expected-stdout:
- autoload='typeset -fu'
- functions='typeset -f'
- hash='alias -t'
- history='fc -l'
- integer='typeset -i'
- local=typeset
- login='exec login'
- nameref='typeset -n'
- nohup='nohup '
- r='fc -e -'
- source='PATH=$PATH:. command .'
- type='whence -v'
----
-name: aliases-3b-hartz4
-description:
- Check if running as sh does not influence built-in aliases
-category: android,arge
-stdin:
- cp "$__progname" sh
- ./sh -c 'alias; typeset -f'
- rm -f sh
-expected-stdout:
- autoload='typeset -fu'
- functions='typeset -f'
- hash='alias -t'
- history='fc -l'
- integer='typeset -i'
- local=typeset
- login='exec login'
- nameref='typeset -n'
- nohup='nohup '
- r='fc -e -'
- source='PATH=$PATH:. command .'
- type='whence -v'
----
-name: aliases-cmdline
-description:
- Check that aliases work from the command line (Debian #517009)
- Note that due to the nature of the lexing process, defining
- aliases in COMSUBs then immediately using them, and things
- like 'alias foo=bar && foo', still fail.
-stdin:
- "$__progname" -c $'alias a="echo OK"\na'
-expected-stdout:
- OK
----
-name: aliases-funcdef-1
-description:
- Check if POSIX functions take precedences over aliases
-stdin:
- alias foo='echo makro'
- foo() {
- echo funktion
- }
- foo
-expected-stdout:
- funktion
----
-name: aliases-funcdef-2
-description:
- Check if POSIX functions take precedences over aliases
-stdin:
- alias foo='echo makro'
- foo () {
- echo funktion
- }
- foo
-expected-stdout:
- funktion
----
-name: aliases-funcdef-3
-description:
- Check if aliases take precedences over Korn functions
-stdin:
- alias foo='echo makro'
- function foo {
- echo funktion
- }
- foo
-expected-stdout:
- makro
----
-name: aliases-funcdef-4
-description:
- Functions should only take over if actually being defined
-stdin:
- alias local
- :|| local() { :; }
- alias local
-expected-stdout:
- local=typeset
- local=typeset
----
-name: arrays-1
-description:
- Check if Korn Shell arrays work as expected
-stdin:
- v="c d"
- set -A foo -- a \$v "$v" '$v' b
- echo "${#foo[*]}|${foo[0]}|${foo[1]}|${foo[2]}|${foo[3]}|${foo[4]}|"
-expected-stdout:
- 5|a|$v|c d|$v|b|
----
-name: arrays-2a
-description:
- Check if bash-style arrays work as expected
-stdin:
- v="c d"
- foo=(a \$v "$v" '$v' b)
- echo "${#foo[*]}|${foo[0]}|${foo[1]}|${foo[2]}|${foo[3]}|${foo[4]}|"
-expected-stdout:
- 5|a|$v|c d|$v|b|
----
-name: arrays-2b
-description:
- Check if bash-style arrays work as expected, with newlines
-stdin:
- print '#!'"$__progname"'\nfor x in "$@"; do print -nr -- "$x|"; done' >pfp
- chmod +x pfp
- test -n "$ZSH_VERSION" && setopt KSH_ARRAYS
- v="e f"
- foo=(a
- bc
- d \$v "$v" '$v' g
- )
- ./pfp "${#foo[*]}" "${foo[0]}" "${foo[1]}" "${foo[2]}" "${foo[3]}" "${foo[4]}" "${foo[5]}" "${foo[6]}"; echo
- foo=(a\
- bc
- d \$v "$v" '$v' g
- )
- ./pfp "${#foo[*]}" "${foo[0]}" "${foo[1]}" "${foo[2]}" "${foo[3]}" "${foo[4]}" "${foo[5]}" "${foo[6]}"; echo
- foo=(a\
- bc\\
- d \$v "$v" '$v'
- g)
- ./pfp "${#foo[*]}" "${foo[0]}" "${foo[1]}" "${foo[2]}" "${foo[3]}" "${foo[4]}" "${foo[5]}" "${foo[6]}"; echo
-expected-stdout:
- 7|a|bc|d|$v|e f|$v|g|
- 7|a|bc|d|$v|e f|$v|g|
- 6|abc\|d|$v|e f|$v|g||
----
-name: arrays-3
-description:
- Check if array bounds are uint32_t
-stdin:
- set -A foo a b c
- foo[4097]=d
- foo[2147483637]=e
- echo ${foo[*]}
- foo[-1]=f
- echo ${foo[4294967295]} g ${foo[*]}
-expected-stdout:
- a b c d e
- f g a b c d e f
----
-name: arrays-4
-description:
- Check if Korn Shell arrays with specified indices work as expected
-stdin:
- v="c d"
- set -A foo -- [1]=\$v [2]="$v" [4]='$v' [0]=a [5]=b
- echo "${#foo[*]}|${foo[0]}|${foo[1]}|${foo[2]}|${foo[3]}|${foo[4]}|${foo[5]}|"
-expected-stdout:
- 5|a|$v|c d||$v|b|
----
-name: arrays-5
-description:
- Check if bash-style arrays with specified indices work as expected
-stdin:
- v="c d"
- foo=([1]=\$v [2]="$v" [4]='$v' [0]=a [5]=b)
- echo "${#foo[*]}|${foo[0]}|${foo[1]}|${foo[2]}|${foo[3]}|${foo[4]}|${foo[5]}|"
- x=([128]=foo bar baz)
- echo k= ${!x[*]} .
- echo v= ${x[*]} .
-expected-stdout:
- 5|a|$v|c d||$v|b|
- k= 128 129 130 .
- v= foo bar baz .
----
-name: arrays-6
-description:
- Check if we can get the array keys (indices) for indexed arrays,
- Korn shell style
-stdin:
- of() {
- i=0
- for x in "$@"; do
- echo -n "$((i++))<$x>"
- done
- echo
- }
- foo[1]=eins
- set | grep '^foo'
- echo =
- foo[0]=zwei
- foo[4]=drei
- set | grep '^foo'
- echo =
- echo a $(of ${foo[*]}) = $(of ${bar[*]}) a
- echo b $(of "${foo[*]}") = $(of "${bar[*]}") b
- echo c $(of ${foo[@]}) = $(of ${bar[@]}) c
- echo d $(of "${foo[@]}") = $(of "${bar[@]}") d
- echo e $(of ${!foo[*]}) = $(of ${!bar[*]}) e
- echo f $(of "${!foo[*]}") = $(of "${!bar[*]}") f
- echo g $(of ${!foo[@]}) = $(of ${!bar[@]}) g
- echo h $(of "${!foo[@]}") = $(of "${!bar[@]}") h
-expected-stdout:
- foo[1]=eins
- =
- foo[0]=zwei
- foo[1]=eins
- foo[4]=drei
- =
- a 0<zwei>1<eins>2<drei> = a
- b 0<zwei eins drei> = 0<> b
- c 0<zwei>1<eins>2<drei> = c
- d 0<zwei>1<eins>2<drei> = d
- e 0<0>1<1>2<4> = e
- f 0<0 1 4> = 0<> f
- g 0<0>1<1>2<4> = g
- h 0<0>1<1>2<4> = h
----
-name: arrays-7
-description:
- Check if we can get the array keys (indices) for indexed arrays,
- Korn shell style, in some corner cases
-stdin:
- echo !arz: ${!arz}
- echo !arz[0]: ${!arz[0]}
- echo !arz[1]: ${!arz[1]}
- arz=foo
- echo !arz: ${!arz}
- echo !arz[0]: ${!arz[0]}
- echo !arz[1]: ${!arz[1]}
- unset arz
- echo !arz: ${!arz}
- echo !arz[0]: ${!arz[0]}
- echo !arz[1]: ${!arz[1]}
-expected-stdout:
- !arz: 0
- !arz[0]:
- !arz[1]:
- !arz: arz
- !arz[0]: 0
- !arz[1]:
- !arz: 0
- !arz[0]:
- !arz[1]:
----
-name: arrays-8
-description:
- Check some behavioural rules for arrays.
-stdin:
- fna() {
- set -A aa 9
- }
- fnb() {
- typeset ab
- set -A ab 9
- }
- fnc() {
- typeset ac
- set -A ac 91
- unset ac
- set -A ac 92
- }
- fnd() {
- set +A ad 9
- }
- fne() {
- unset ae
- set +A ae 9
- }
- fnf() {
- unset af[0]
- set +A af 9
- }
- fng() {
- unset ag[*]
- set +A ag 9
- }
- set -A aa 1 2
- set -A ab 1 2
- set -A ac 1 2
- set -A ad 1 2
- set -A ae 1 2
- set -A af 1 2
- set -A ag 1 2
- set -A ah 1 2
- typeset -Z3 aa ab ac ad ae af ag
- print 1a ${aa[*]} .
- print 1b ${ab[*]} .
- print 1c ${ac[*]} .
- print 1d ${ad[*]} .
- print 1e ${ae[*]} .
- print 1f ${af[*]} .
- print 1g ${ag[*]} .
- print 1h ${ah[*]} .
- fna
- fnb
- fnc
- fnd
- fne
- fnf
- fng
- typeset -Z5 ah[*]
- print 2a ${aa[*]} .
- print 2b ${ab[*]} .
- print 2c ${ac[*]} .
- print 2d ${ad[*]} .
- print 2e ${ae[*]} .
- print 2f ${af[*]} .
- print 2g ${ag[*]} .
- print 2h ${ah[*]} .
-expected-stdout:
- 1a 001 002 .
- 1b 001 002 .
- 1c 001 002 .
- 1d 001 002 .
- 1e 001 002 .
- 1f 001 002 .
- 1g 001 002 .
- 1h 1 2 .
- 2a 9 .
- 2b 001 002 .
- 2c 92 .
- 2d 009 002 .
- 2e 9 .
- 2f 9 002 .
- 2g 009 .
- 2h 00001 00002 .
----
-name: arrays-9a
-description:
- Check that we can concatenate arrays
-stdin:
- unset foo; foo=(bar); foo+=(baz); echo 1 ${!foo[*]} : ${foo[*]} .
- unset foo; foo=(foo bar); foo+=(baz); echo 2 ${!foo[*]} : ${foo[*]} .
- unset foo; foo=([2]=foo [0]=bar); foo+=(baz [5]=quux); echo 3 ${!foo[*]} : ${foo[*]} .
-expected-stdout:
- 1 0 1 : bar baz .
- 2 0 1 2 : foo bar baz .
- 3 0 2 3 5 : bar foo baz quux .
----
-name: arrays-9b
-description:
- Check that we can concatenate parameters too
-stdin:
- unset foo; foo=bar; foo+=baz; echo 1 $foo .
- unset foo; typeset -i16 foo=10; foo+=20; echo 2 $foo .
-expected-stdout:
- 1 barbaz .
- 2 16#a20 .
----
-name: arrassign-basic
-description:
- Check basic whitespace conserving properties of wdarrassign
-stdin:
- a=($(echo a b))
- b=($(echo "a b"))
- c=("$(echo "a b")")
- d=("$(echo a b)")
- a+=($(echo c d))
- b+=($(echo "c d"))
- c+=("$(echo "c d")")
- d+=("$(echo c d)")
- echo ".a:${a[0]}.${a[1]}.${a[2]}.${a[3]}:"
- echo ".b:${b[0]}.${b[1]}.${b[2]}.${b[3]}:"
- echo ".c:${c[0]}.${c[1]}.${c[2]}.${c[3]}:"
- echo ".d:${d[0]}.${d[1]}.${d[2]}.${d[3]}:"
-expected-stdout:
- .a:a.b.c.d:
- .b:a.b.c.d:
- .c:a b.c d..:
- .d:a b.c d..:
----
-name: arrassign-fnc-none
-description:
- Check locality of array access inside a function
-stdin:
- function fn {
- x+=(f)
- echo ".fn:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- }
- function rfn {
- if [[ -n $BASH_VERSION ]]; then
- y=()
- else
- set -A y
- fi
- y+=(f)
- echo ".rfn:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
- }
- x=(m m)
- y=(m m)
- echo ".f0:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- fn
- echo ".f1:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- fn
- echo ".f2:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- echo ".rf0:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
- rfn
- echo ".rf1:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
- rfn
- echo ".rf2:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
-expected-stdout:
- .f0:m.m..:
- .fn:m.m.f.:
- .f1:m.m.f.:
- .fn:m.m.f.f:
- .f2:m.m.f.f:
- .rf0:m.m..:
- .rfn:f...:
- .rf1:f...:
- .rfn:f...:
- .rf2:f...:
----
-name: arrassign-fnc-local
-description:
- Check locality of array access inside a function
- with the bash/mksh/ksh93 local/typeset keyword
- (note: ksh93 has no local; typeset works only in FKSH)
-stdin:
- function fn {
- typeset x
- x+=(f)
- echo ".fn:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- }
- function rfn {
- if [[ -n $BASH_VERSION ]]; then
- y=()
- else
- set -A y
- fi
- typeset y
- y+=(f)
- echo ".rfn:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
- }
- function fnr {
- typeset z
- if [[ -n $BASH_VERSION ]]; then
- z=()
- else
- set -A z
- fi
- z+=(f)
- echo ".fnr:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
- }
- x=(m m)
- y=(m m)
- z=(m m)
- echo ".f0:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- fn
- echo ".f1:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- fn
- echo ".f2:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- echo ".rf0:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
- rfn
- echo ".rf1:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
- rfn
- echo ".rf2:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
- echo ".f0r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
- fnr
- echo ".f1r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
- fnr
- echo ".f2r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
-expected-stdout:
- .f0:m.m..:
- .fn:f...:
- .f1:m.m..:
- .fn:f...:
- .f2:m.m..:
- .rf0:m.m..:
- .rfn:f...:
- .rf1:...:
- .rfn:f...:
- .rf2:...:
- .f0r:m.m..:
- .fnr:f...:
- .f1r:m.m..:
- .fnr:f...:
- .f2r:m.m..:
----
-name: arrassign-fnc-global
-description:
- Check locality of array access inside a function
- with the mksh-specific global keyword
-stdin:
- function fn {
- global x
- x+=(f)
- echo ".fn:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- }
- function rfn {
- set -A y
- global y
- y+=(f)
- echo ".rfn:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
- }
- function fnr {
- global z
- set -A z
- z+=(f)
- echo ".fnr:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
- }
- x=(m m)
- y=(m m)
- z=(m m)
- echo ".f0:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- fn
- echo ".f1:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- fn
- echo ".f2:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
- echo ".rf0:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
- rfn
- echo ".rf1:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
- rfn
- echo ".rf2:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
- echo ".f0r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
- fnr
- echo ".f1r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
- fnr
- echo ".f2r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
-expected-stdout:
- .f0:m.m..:
- .fn:m.m.f.:
- .f1:m.m.f.:
- .fn:m.m.f.f:
- .f2:m.m.f.f:
- .rf0:m.m..:
- .rfn:f...:
- .rf1:f...:
- .rfn:f...:
- .rf2:f...:
- .f0r:m.m..:
- .fnr:f...:
- .f1r:f...:
- .fnr:f...:
- .f2r:f...:
----
-name: strassign-fnc-none
-description:
- Check locality of string access inside a function
-stdin:
- function fn {
- x+=f
- echo ".fn:$x:"
- }
- function rfn {
- y=
- y+=f
- echo ".rfn:$y:"
- }
- x=m
- y=m
- echo ".f0:$x:"
- fn
- echo ".f1:$x:"
- fn
- echo ".f2:$x:"
- echo ".rf0:$y:"
- rfn
- echo ".rf1:$y:"
- rfn
- echo ".rf2:$y:"
-expected-stdout:
- .f0:m:
- .fn:mf:
- .f1:mf:
- .fn:mff:
- .f2:mff:
- .rf0:m:
- .rfn:f:
- .rf1:f:
- .rfn:f:
- .rf2:f:
----
-name: strassign-fnc-local
-description:
- Check locality of string access inside a function
- with the bash/mksh/ksh93 local/typeset keyword
- (note: ksh93 has no local; typeset works only in FKSH)
-stdin:
- function fn {
- typeset x
- x+=f
- echo ".fn:$x:"
- }
- function rfn {
- y=
- typeset y
- y+=f
- echo ".rfn:$y:"
- }
- function fnr {
- typeset z
- z=
- z+=f
- echo ".fnr:$z:"
- }
- x=m
- y=m
- z=m
- echo ".f0:$x:"
- fn
- echo ".f1:$x:"
- fn
- echo ".f2:$x:"
- echo ".rf0:$y:"
- rfn
- echo ".rf1:$y:"
- rfn
- echo ".rf2:$y:"
- echo ".f0r:$z:"
- fnr
- echo ".f1r:$z:"
- fnr
- echo ".f2r:$z:"
-expected-stdout:
- .f0:m:
- .fn:f:
- .f1:m:
- .fn:f:
- .f2:m:
- .rf0:m:
- .rfn:f:
- .rf1::
- .rfn:f:
- .rf2::
- .f0r:m:
- .fnr:f:
- .f1r:m:
- .fnr:f:
- .f2r:m:
----
-name: strassign-fnc-global
-description:
- Check locality of string access inside a function
- with the mksh-specific global keyword
-stdin:
- function fn {
- global x
- x+=f
- echo ".fn:$x:"
- }
- function rfn {
- y=
- global y
- y+=f
- echo ".rfn:$y:"
- }
- function fnr {
- global z
- z=
- z+=f
- echo ".fnr:$z:"
- }
- x=m
- y=m
- z=m
- echo ".f0:$x:"
- fn
- echo ".f1:$x:"
- fn
- echo ".f2:$x:"
- echo ".rf0:$y:"
- rfn
- echo ".rf1:$y:"
- rfn
- echo ".rf2:$y:"
- echo ".f0r:$z:"
- fnr
- echo ".f1r:$z:"
- fnr
- echo ".f2r:$z:"
-expected-stdout:
- .f0:m:
- .fn:mf:
- .f1:mf:
- .fn:mff:
- .f2:mff:
- .rf0:m:
- .rfn:f:
- .rf1:f:
- .rfn:f:
- .rf2:f:
- .f0r:m:
- .fnr:f:
- .f1r:f:
- .fnr:f:
- .f2r:f:
----
-name: varexpand-substr-1
-description:
- Check if bash-style substring expansion works
- when using positive numerics
-stdin:
- x=abcdefghi
- typeset -i y=123456789
- typeset -i 16 z=123456789 # 16#75bcd15
- echo a t${x:2:2} ${y:2:3} ${z:2:3} a
- echo b ${x::3} ${y::3} ${z::3} b
- echo c ${x:2:} ${y:2:} ${z:2:} c
- echo d ${x:2} ${y:2} ${z:2} d
- echo e ${x:2:6} ${y:2:6} ${z:2:7} e
- echo f ${x:2:7} ${y:2:7} ${z:2:8} f
- echo g ${x:2:8} ${y:2:8} ${z:2:9} g
-expected-stdout:
- a tcd 345 #75 a
- b abc 123 16# b
- c c
- d cdefghi 3456789 #75bcd15 d
- e cdefgh 345678 #75bcd1 e
- f cdefghi 3456789 #75bcd15 f
- g cdefghi 3456789 #75bcd15 g
----
-name: varexpand-substr-2
-description:
- Check if bash-style substring expansion works
- when using negative numerics or expressions
-stdin:
- x=abcdefghi
- typeset -i y=123456789
- typeset -i 16 z=123456789 # 16#75bcd15
- n=2
- echo a ${x:$n:3} ${y:$n:3} ${z:$n:3} a
- echo b ${x:(n):3} ${y:(n):3} ${z:(n):3} b
- echo c ${x:(-2):1} ${y:(-2):1} ${z:(-2):1} c
- echo d t${x: n:2} ${y: n:3} ${z: n:3} d
-expected-stdout:
- a cde 345 #75 a
- b cde 345 #75 b
- c h 8 1 c
- d tcd 345 #75 d
----
-name: varexpand-substr-3
-description:
- Check that some things that work in bash fail.
- This is by design. And that some things fail in both.
-stdin:
- export x=abcdefghi n=2
- "$__progname" -c 'echo v${x:(n)}x'
- "$__progname" -c 'echo w${x: n}x'
- "$__progname" -c 'echo x${x:n}x'
- "$__progname" -c 'echo y${x:}x'
- "$__progname" -c 'echo z${x}x'
- "$__progname" -c 'x=abcdef;y=123;echo ${x:${y:2:1}:2}' >/dev/null 2>&1; echo $?
-expected-stdout:
- vcdefghix
- wcdefghix
- zabcdefghix
- 1
-expected-stderr-pattern:
- /x:n.*bad substitution.*\n.*bad substitution/
----
-name: varexpand-substr-4
-description:
- Check corner cases for substring expansion
-stdin:
- x=abcdefghi
- integer y=2
- echo a ${x:(y == 1 ? 2 : 3):4} a
-expected-stdout:
- a defg a
----
-name: varexpand-substr-5A
-description:
- Check that substring expansions work on characters
-stdin:
- set +U
- x=mäh
- echo a ${x::1} ${x: -1} a
- echo b ${x::3} ${x: -3} b
- echo c ${x:1:2} ${x: -3:2} c
- echo d ${#x} d
-expected-stdout:
- a m h a
- b mä äh b
- c ä ä c
- d 4 d
----
-name: varexpand-substr-5W
-description:
- Check that substring expansions work on characters
-stdin:
- set -U
- x=mäh
- echo a ${x::1} ${x: -1} a
- echo b ${x::2} ${x: -2} b
- echo c ${x:1:1} ${x: -2:1} c
- echo d ${#x} d
-expected-stdout:
- a m h a
- b mä äh b
- c ä ä c
- d 3 d
----
-name: varexpand-substr-6
-description:
- Check that string substitution works correctly
-stdin:
- foo=1
- bar=2
- baz=qwertyuiop
- echo a ${baz: foo: bar}
- echo b ${baz: foo: $bar}
- echo c ${baz: $foo: bar}
- echo d ${baz: $foo: $bar}
-expected-stdout:
- a we
- b we
- c we
- d we
----
-name: varexpand-special-hash
-description:
- Check special ${var at x} expansion for x=hash
-stdin:
- typeset -i8 foo=10
- bar=baz
- unset baz
- bla=foo
- print ${foo@#} ${bar@#} ${baz@#} .
- print ${foo@#123} ${bar@#456} ${baz@#789} .
- print ${foo@#bla} ${bar@#bar} ${baz@#OPTIND} .
-expected-stdout:
- D50219A0 20E5DB5B 00000000 .
- 554A1C76 004A212E CB209562 .
- 6B21CF91 20E5DB5B 124EA49D .
----
-name: varexpand-special-quote
-description:
- Check special ${var at Q} expansion for quoted strings
-stdin:
- set +U
- i=x
- j=a\ b
- k=$'c
- d\xA0''e€f'
- print -r -- "<i=$i j=$j k=$k>"
- s="u=${i at Q} v=${j at Q} w=${k at Q}"
- print -r -- "s=\"$s\""
- eval "$s"
- typeset -p u v w
-expected-stdout:
- <i=x j=a b k=c
- d\xA0e€f>
- s="u=x v='a b' w=$'c\nd\240e\u20ACf'"
- typeset u=x
- typeset v='a b'
- typeset w=$'c\nd\240e\u20ACf'
----
-name: varexpand-null-1
-description:
- Ensure empty strings expand emptily
-stdin:
- print x ${a} ${b} y
- print z ${a#?} ${b%?} w
- print v ${a=} ${b/c/d} u
-expected-stdout:
- x y
- z w
- v u
----
-name: varexpand-null-2
-description:
- Ensure empty strings, when quoted, are expanded as empty strings
-stdin:
- print '#!'"$__progname"'\nfor x in "$@"; do print -nr -- "<$x> "; done' >pfs
- chmod +x pfs
- ./pfs 1 "${a}" 2 "${a#?}" + "${b%?}" 3 "${a=}" + "${b/c/d}"
- echo .
-expected-stdout:
- <1> <> <2> <> <+> <> <3> <> <+> <> .
----
-name: print-funny-chars
-description:
- Check print builtin's capability to output designated characters
-stdin:
- print '<\0144\0344\xDB\u00DB\u20AC\uDB\x40>'
-expected-stdout:
- <d\xE4\xDBÛ€Û@>
----
-name: print-bksl-c
-description:
- Check print builtin's \c escape
-stdin:
- print '\ca'; print b
-expected-stdout:
- ab
----
-name: print-cr
-description:
- Check that CR+LF is not collapsed into LF as some MSYS shells wrongly do
-stdin:
- echo '#!'"$__progname" >foo
- cat >>foo <<-'EOF'
- print -n -- '220-blau.mirbsd.org ESMTP ready at Thu, 25 Jul 2013 15:57:57 GMT\r\n220->> Bitte keine Werbung einwerfen! <<\r\r\n220 Who do you wanna pretend to be today'
- print \?
- EOF
- chmod +x foo
- echo "[$(./foo)]"
- ./foo | while IFS= read -r line; do
- print -r -- "{$line}"
- done
-expected-stdout:
- [220-blau.mirbsd.org ESMTP ready at Thu, 25 Jul 2013 15:57:57 GMT
- 220->> Bitte keine Werbung einwerfen! <<
-
- 220 Who do you wanna pretend to be today?
-]
- {220-blau.mirbsd.org ESMTP ready at Thu, 25 Jul 2013 15:57:57 GMT
-}
- {220->> Bitte keine Werbung einwerfen! <<
-
-}
- {220 Who do you wanna pretend to be today?
-}
----
-name: print-nul-chars
-description:
- Check handling of NUL characters for print and COMSUB
-stdin:
- x=$(print '<\0>')
- print $(($(print '<\0>' | wc -c))) $(($(print "$x" | wc -c))) \
- ${#x} "$x" '<\0>'
-expected-stdout-pattern:
- /^4 3 2 <> <\0>$/
----
-name: print-escapes
-description:
- Check backslash expansion by the print builtin
-stdin:
- print '\ \!\"\#\$\%\&'\\\''\(\)\*\+\,\-\.\/\0\1\2\3\4\5\6\7\8' \
- '\9\:\;\<\=\>\?\@\A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T' \
- '\U\V\W\X\Y\Z\[\\\]\^\_\`\a\b \d\e\f\g\h\i\j\k\l\m\n\o\p' \
- '\q\r\s\t\u\v\w\x\y\z\{\|\}\~' '\u20acd' '\U20acd' '\x123' \
- '\0x' '\0123' '\01234' | {
- # integer-base-one-3As
- typeset -Uui16 -Z11 pos=0
- typeset -Uui16 -Z5 hv=2147483647
- typeset -i1 wc=0x0A
- dasc=
- nl=${wc#1#}
- while IFS= read -r line; do
- line=$line$nl
- while [[ -n $line ]]; do
- hv=1#${line::1}
- if (( (pos & 15) == 0 )); then
- (( pos )) && print "$dasc|"
- print -n "${pos#16#} "
- dasc=' |'
- fi
- print -n "${hv#16#} "
- if (( (hv < 32) || (hv > 126) )); then
- dasc=$dasc.
- else
- dasc=$dasc${line::1}
- fi
- (( (pos++ & 15) == 7 )) && print -n -- '- '
- line=${line:1}
- done
- done
- while (( pos & 15 )); do
- print -n ' '
- (( (pos++ & 15) == 7 )) && print -n -- '- '
- done
- (( hv == 2147483647 )) || print "$dasc|"
- }
-expected-stdout:
- 00000000 5C 20 5C 21 5C 22 5C 23 - 5C 24 5C 25 5C 26 5C 27 |\ \!\"\#\$\%\&\'|
- 00000010 5C 28 5C 29 5C 2A 5C 2B - 5C 2C 5C 2D 5C 2E 5C 2F |\(\)\*\+\,\-\.\/|
- 00000020 5C 31 5C 32 5C 33 5C 34 - 5C 35 5C 36 5C 37 5C 38 |\1\2\3\4\5\6\7\8|
- 00000030 20 5C 39 5C 3A 5C 3B 5C - 3C 5C 3D 5C 3E 5C 3F 5C | \9\:\;\<\=\>\?\|
- 00000040 40 5C 41 5C 42 5C 43 5C - 44 1B 5C 46 5C 47 5C 48 |@\A\B\C\D.\F\G\H|
- 00000050 5C 49 5C 4A 5C 4B 5C 4C - 5C 4D 5C 4E 5C 4F 5C 50 |\I\J\K\L\M\N\O\P|
- 00000060 5C 51 5C 52 5C 53 5C 54 - 20 5C 56 5C 57 5C 58 5C |\Q\R\S\T \V\W\X\|
- 00000070 59 5C 5A 5C 5B 5C 5C 5D - 5C 5E 5C 5F 5C 60 07 08 |Y\Z\[\]\^\_\`..|
- 00000080 20 20 5C 64 1B 0C 5C 67 - 5C 68 5C 69 5C 6A 5C 6B | \d..\g\h\i\j\k|
- 00000090 5C 6C 5C 6D 0A 5C 6F 5C - 70 20 5C 71 0D 5C 73 09 |\l\m.\o\p \q.\s.|
- 000000A0 0B 5C 77 5C 79 5C 7A 5C - 7B 5C 7C 5C 7D 5C 7E 20 |.\w\y\z\{\|\}\~ |
- 000000B0 E2 82 AC 64 20 EF BF BD - 20 12 33 20 78 20 53 20 |...d ... .3 x S |
- 000000C0 53 34 0A - |S4.|
----
-name: dollar-doublequoted-strings
-description:
- Check that a $ preceding "…" is ignored
-stdin:
- echo $"Localise me!"
- cat <<<$"Me too!"
- V=X
- aol=aol
- cat <<-$"aol"
- I do not take a $V for a V!
- aol
-expected-stdout:
- Localise me!
- Me too!
- I do not take a $V for a V!
----
-name: dollar-quoted-strings
-description:
- Check backslash expansion by $'…' strings
-stdin:
- print '#!'"$__progname"'\nfor x in "$@"; do print -r -- "$x"; done' >pfn
- chmod +x pfn
- ./pfn $'\ \!\"\#\$\%\&\'\(\)\*\+\,\-\.\/ \1\2\3\4\5\6' \
- $'a\0b' $'a\01b' $'\7\8\9\:\;\<\=\>\?\@\A\B\C\D\E\F\G\H\I' \
- $'\J\K\L\M\N\O\P\Q\R\S\T\U1\V\W\X\Y\Z\[\\\]\^\_\`\a\b\d\e' \
- $'\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u1\v\w\x1\y\z\{\|\}\~ $x' \
- $'\u20acd' $'\U20acd' $'\x123' $'fn\x0rd' $'\0234' $'\234' \
- $'\2345' $'\ca' $'\c!' $'\c?' $'\c€' $'a\
- b' | {
- # integer-base-one-3As
- typeset -Uui16 -Z11 pos=0
- typeset -Uui16 -Z5 hv=2147483647
- typeset -i1 wc=0x0A
- dasc=
- nl=${wc#1#}
- while IFS= read -r line; do
- line=$line$nl
- while [[ -n $line ]]; do
- hv=1#${line::1}
- if (( (pos & 15) == 0 )); then
- (( pos )) && print "$dasc|"
- print -n "${pos#16#} "
- dasc=' |'
- fi
- print -n "${hv#16#} "
- if (( (hv < 32) || (hv > 126) )); then
- dasc=$dasc.
- else
- dasc=$dasc${line::1}
- fi
- (( (pos++ & 15) == 7 )) && print -n -- '- '
- line=${line:1}
- done
- done
- while (( pos & 15 )); do
- print -n ' '
- (( (pos++ & 15) == 7 )) && print -n -- '- '
- done
- (( hv == 2147483647 )) || print "$dasc|"
- }
-expected-stdout:
- 00000000 20 21 22 23 24 25 26 27 - 28 29 2A 2B 2C 2D 2E 2F | !"#$%&'()*+,-./|
- 00000010 20 01 02 03 04 05 06 0A - 61 0A 61 01 62 0A 07 38 | .......a.a.b..8|
- 00000020 39 3A 3B 3C 3D 3E 3F 40 - 41 42 43 44 1B 46 47 48 |9:;<=>?@ABCD.FGH|
- 00000030 49 0A 4A 4B 4C 4D 4E 4F - 50 51 52 53 54 01 56 57 |I.JKLMNOPQRST.VW|
- 00000040 58 59 5A 5B 5C 5D 5E 5F - 60 07 08 64 1B 0A 0C 67 |XYZ[\]^_`..d...g|
- 00000050 68 69 6A 6B 6C 6D 0A 6F - 70 71 0D 73 09 01 0B 77 |hijklm.opq.s...w|
- 00000060 01 79 7A 7B 7C 7D 7E 20 - 24 78 0A E2 82 AC 64 0A |.yz{|}~ $x....d.|
- 00000070 EF BF BD 0A C4 A3 0A 66 - 6E 0A 13 34 0A 9C 0A 9C |.......fn..4....|
- 00000080 35 0A 01 0A 01 0A 7F 0A - 02 82 AC 0A 61 0A 62 0A |5...........a.b.|
----
-name: dollar-quotes-in-heredocs-strings
-description:
- They are, however, not parsed in here documents, here strings
- (outside of string delimiters) or regular strings, but in
- parameter substitutions.
-stdin:
- cat <<EOF
- dollar = strchr(s, '$'); /* ' */
- foo " bar \" baz
- EOF
- cat <<$'a\tb'
- a\tb
- a b
- cat <<<"dollar = strchr(s, '$'); /* ' */"
- cat <<<'dollar = strchr(s, '\''$'\''); /* '\'' */'
- x="dollar = strchr(s, '$'); /* ' */"
- cat <<<"$x"
- cat <<<$'a\E[0m\tb'
- unset nl; print -r -- "x${nl:=$'\n'}y"
- echo "1 foo\"bar"
- # cf & HEREDOC
- cat <<EOF
- 2 foo\"bar
- EOF
- # probably never reached for here strings?
- cat <<<"3 foo\"bar"
- cat <<<"4 foo\\\"bar"
- cat <<<'5 foo\"bar'
- # old scripts use this (e.g. ncurses)
- echo "^$"
- # make sure this works, outside of quotes
- cat <<<'7'$'\t''.'
-expected-stdout:
- dollar = strchr(s, '$'); /* ' */
- foo " bar \" baz
- a\tb
- dollar = strchr(s, '$'); /* ' */
- dollar = strchr(s, '$'); /* ' */
- dollar = strchr(s, '$'); /* ' */
- a[0m b
- x
- y
- 1 foo"bar
- 2 foo\"bar
- 3 foo"bar
- 4 foo\"bar
- 5 foo\"bar
- ^$
- 7 .
----
-name: dot-needs-argument
-description:
- check Debian #415167 solution: '.' without arguments should fail
-stdin:
- "$__progname" -c .
- "$__progname" -c source
-expected-exit: e != 0
-expected-stderr-pattern:
- /\.: missing argument.*\n.*\.: missing argument/
----
-name: alias-function-no-conflict
-description:
- make aliases not conflict with functions
- note: for ksh-like functions, the order of preference is
- different; bash outputs baz instead of bar in line 2 below
-stdin:
- alias foo='echo bar'
- foo() {
- echo baz
- }
- alias korn='echo bar'
- function korn {
- echo baz
- }
- foo
- korn
- unset -f foo
- foo 2>/dev/null || echo rab
-expected-stdout:
- baz
- bar
- rab
----
-name: bash-function-parens
-description:
- ensure the keyword function is ignored when preceding
- POSIX style function declarations (bashism)
-stdin:
- mk() {
- echo '#!'"$__progname"
- echo "$1 {"
- echo ' echo "bar='\''$0'\'\"
- echo '}'
- echo ${2:-foo}
- }
- mk 'function foo' >f-korn
- mk 'foo ()' >f-dash
- mk 'function foo ()' >f-bash
- mk 'function stop ()' stop >f-stop
- print '#!'"$__progname"'\nprint -r -- "${0%/f-argh}"' >f-argh
- chmod +x f-*
- u=$(./f-argh)
- x="korn: $(./f-korn)"; echo "${x/@("$u")/.}"
- x="dash: $(./f-dash)"; echo "${x/@("$u")/.}"
- x="bash: $(./f-bash)"; echo "${x/@("$u")/.}"
- x="stop: $(./f-stop)"; echo "${x/@("$u")/.}"
-expected-stdout:
- korn: bar='foo'
- dash: bar='./f-dash'
- bash: bar='./f-bash'
- stop: bar='./f-stop'
----
-name: integer-base-one-1
-description:
- check if the use of fake integer base 1 works
-stdin:
- set -U
- typeset -Uui16 i0=1#\xEF i1=1#€
- typeset -i1 o0a=64
- typeset -i1 o1a=0x263A
- typeset -Uui1 o0b=0x7E
- typeset -Uui1 o1b=0xFDD0
- integer px=0xCAFE 'p0=1# ' p1=1#… pl=1#f
- echo "in <$i0> <$i1>"
- echo "out <${o0a#1#}|${o0b#1#}> <${o1a#1#}|${o1b#1#}>"
- typeset -Uui1 i0 i1
- echo "pass <$px> <$p0> <$p1> <$pl> <${i0#1#}|${i1#1#}>"
- typeset -Uui16 tv1=1#~ tv2=1# tv3=1#\x80 tv4=1#\x81 tv5=1#\xC0 tv6=1#\xC1 tv7=1# tv8=1#€
- echo "specX <${tv1#16#}> <${tv2#16#}> <${tv3#16#}> <${tv4#16#}> <${tv5#16#}> <${tv6#16#}> <${tv7#16#}> <${tv8#16#}>"
- typeset -i1 tv1 tv2 tv3 tv4 tv5 tv6 tv7 tv8
- echo "specW <${tv1#1#}> <${tv2#1#}> <${tv3#1#}> <${tv4#1#}> <${tv5#1#}> <${tv6#1#}> <${tv7#1#}> <${tv8#1#}>"
- typeset -i1 xs1=0xEF7F xs2=0xEF80 xs3=0xFDD0
- echo "specU <${xs1#1#}> <${xs2#1#}> <${xs3#1#}>"
-expected-stdout:
- in <16#EFEF> <16#20AC>
- out <@|~> <☺|\x{FDD0}>
- pass <16#cafe> <1# > <1#…> <1#f> <\xEF|€>
- specX <7E> <7F> <EF80> <EF81> <EFC0> <EFC1> <A0> <80>
- specW <~> <> <\x80> <\x81> <\xC0> <\xC1> < > <€>
- specU <> <\x80> <\x{FDD0}>
----
-name: integer-base-one-2a
-description:
- check if the use of fake integer base 1 stops at correct characters
-stdin:
- set -U
- integer x=1#foo
- echo /$x/
-expected-stderr-pattern:
- /1#foo: unexpected 'oo'/
-expected-exit: e != 0
----
-name: integer-base-one-2b
-description:
- check if the use of fake integer base 1 stops at correct characters
-stdin:
- set -U
- integer x=1#\xC0\x80
- echo /$x/
-expected-stderr-pattern:
- /1#\xC0\x80: unexpected '\x80'/
-expected-exit: e != 0
----
-name: integer-base-one-2c1
-description:
- check if the use of fake integer base 1 stops at correct characters
-stdin:
- set -U
- integer x=1#…
- echo /$x/
-expected-stdout:
- /1#…/
----
-name: integer-base-one-2c2
-description:
- check if the use of fake integer base 1 stops at correct characters
-stdin:
- set +U
- integer x=1#…
- echo /$x/
-expected-stderr-pattern:
- /1#…: unexpected '\x80'/
-expected-exit: e != 0
----
-name: integer-base-one-2d1
-description:
- check if the use of fake integer base 1 handles octets okay
-stdin:
- set -U
- typeset -i16 x=1#\xFF
- echo /$x/ # invalid utf-8
-expected-stdout:
- /16#efff/
----
-name: integer-base-one-2d2
-description:
- check if the use of fake integer base 1 handles octets
-stdin:
- set -U
- typeset -i16 x=1#\xC2
- echo /$x/ # invalid 2-byte
-expected-stdout:
- /16#efc2/
----
-name: integer-base-one-2d3
-description:
- check if the use of fake integer base 1 handles octets
-stdin:
- set -U
- typeset -i16 x=1#\xEF
- echo /$x/ # invalid 2-byte
-expected-stdout:
- /16#efef/
----
-name: integer-base-one-2d4
-description:
- check if the use of fake integer base 1 stops at invalid input
-stdin:
- set -U
- typeset -i16 x=1#\xEF\xBF\xC0
- echo /$x/ # invalid 3-byte
-expected-stderr-pattern:
- /1#\xEF\xBF\xC0: unexpected '\xBF'/
-expected-exit: e != 0
----
-name: integer-base-one-2d5
-description:
- check if the use of fake integer base 1 stops at invalid input
-stdin:
- set -U
- typeset -i16 x=1#\xC0\x80
- echo /$x/ # non-minimalistic
-expected-stderr-pattern:
- /1#\xC0\x80: unexpected '\x80'/
-expected-exit: e != 0
----
-name: integer-base-one-2d6
-description:
- check if the use of fake integer base 1 stops at invalid input
-stdin:
- set -U
- typeset -i16 x=1#\xE0\x80\x80
- echo /$x/ # non-minimalistic
-expected-stderr-pattern:
- /1#\xE0\x80\x80: unexpected '\x80'/
-expected-exit: e != 0
----
-name: integer-base-one-3As
-description:
- some sample code for hexdumping
- not NUL safe; input lines must be NL terminated
-stdin:
- {
- print 'Hello, World!\\\nこんにちは！'
- typeset -Uui16 i=0x100
- # change that to 0xFF once we can handle embedded
- # NUL characters in strings / here documents
- while (( i++ < 0x1FF )); do
- print -n "\x${i#16#1}"
- done
- print '\0z'
- } | {
- # integer-base-one-3As
- typeset -Uui16 -Z11 pos=0
- typeset -Uui16 -Z5 hv=2147483647
- typeset -i1 wc=0x0A
- dasc=
- nl=${wc#1#}
- while IFS= read -r line; do
- line=$line$nl
- while [[ -n $line ]]; do
- hv=1#${line::1}
- if (( (pos & 15) == 0 )); then
- (( pos )) && print "$dasc|"
- print -n "${pos#16#} "
- dasc=' |'
- fi
- print -n "${hv#16#} "
- if (( (hv < 32) || (hv > 126) )); then
- dasc=$dasc.
- else
- dasc=$dasc${line::1}
- fi
- (( (pos++ & 15) == 7 )) && print -n -- '- '
- line=${line:1}
- done
- done
- while (( pos & 15 )); do
- print -n ' '
- (( (pos++ & 15) == 7 )) && print -n -- '- '
- done
- (( hv == 2147483647 )) || print "$dasc|"
- }
-expected-stdout:
- 00000000 48 65 6C 6C 6F 2C 20 57 - 6F 72 6C 64 21 5C 0A E3 |Hello, World!\..|
- 00000010 81 93 E3 82 93 E3 81 AB - E3 81 A1 E3 81 AF EF BC |................|
- 00000020 81 0A 01 02 03 04 05 06 - 07 08 09 0A 0B 0C 0D 0E |................|
- 00000030 0F 10 11 12 13 14 15 16 - 17 18 19 1A 1B 1C 1D 1E |................|
- 00000040 1F 20 21 22 23 24 25 26 - 27 28 29 2A 2B 2C 2D 2E |. !"#$%&'()*+,-.|
- 00000050 2F 30 31 32 33 34 35 36 - 37 38 39 3A 3B 3C 3D 3E |/0123456789:;<=>|
- 00000060 3F 40 41 42 43 44 45 46 - 47 48 49 4A 4B 4C 4D 4E |?@ABCDEFGHIJKLMN|
- 00000070 4F 50 51 52 53 54 55 56 - 57 58 59 5A 5B 5C 5D 5E |OPQRSTUVWXYZ[\]^|
- 00000080 5F 60 61 62 63 64 65 66 - 67 68 69 6A 6B 6C 6D 6E |_`abcdefghijklmn|
- 00000090 6F 70 71 72 73 74 75 76 - 77 78 79 7A 7B 7C 7D 7E |opqrstuvwxyz{|}~|
- 000000A0 7F 80 81 82 83 84 85 86 - 87 88 89 8A 8B 8C 8D 8E |................|
- 000000B0 8F 90 91 92 93 94 95 96 - 97 98 99 9A 9B 9C 9D 9E |................|
- 000000C0 9F A0 A1 A2 A3 A4 A5 A6 - A7 A8 A9 AA AB AC AD AE |................|
- 000000D0 AF B0 B1 B2 B3 B4 B5 B6 - B7 B8 B9 BA BB BC BD BE |................|
- 000000E0 BF C0 C1 C2 C3 C4 C5 C6 - C7 C8 C9 CA CB CC CD CE |................|
- 000000F0 CF D0 D1 D2 D3 D4 D5 D6 - D7 D8 D9 DA DB DC DD DE |................|
- 00000100 DF E0 E1 E2 E3 E4 E5 E6 - E7 E8 E9 EA EB EC ED EE |................|
- 00000110 EF F0 F1 F2 F3 F4 F5 F6 - F7 F8 F9 FA FB FC FD FE |................|
- 00000120 FF 7A 0A - |.z.|
----
-name: integer-base-one-3Ws
-description:
- some sample code for hexdumping Unicode
- not NUL safe; input lines must be NL terminated
-stdin:
- set -U
- {
- print 'Hello, World!\\\nこんにちは！'
- typeset -Uui16 i=0x100
- # change that to 0xFF once we can handle embedded
- # NUL characters in strings / here documents
- while (( i++ < 0x1FF )); do
- print -n "\u${i#16#1}"
- done
- print
- print \\xff # invalid utf-8
- print \\xc2 # invalid 2-byte
- print \\xef\\xbf\\xc0 # invalid 3-byte
- print \\xc0\\x80 # non-minimalistic
- print \\xe0\\x80\\x80 # non-minimalistic
- print '�\x{FFFE}\x{FFFF}' # end of range
- print '\0z' # embedded NUL
- } | {
- # integer-base-one-3Ws
- typeset -Uui16 -Z11 pos=0
- typeset -Uui16 -Z7 hv
- typeset -i1 wc=0x0A
- typeset -i lpos
- dasc=
- nl=${wc#1#}
- while IFS= read -r line; do
- line=$line$nl
- lpos=0
- while (( lpos < ${#line} )); do
- wc=1#${line:(lpos++):1}
- if (( (wc < 32) || \
- ((wc > 126) && (wc < 160)) )); then
- dch=.
- elif (( (wc & 0xFF80) == 0xEF80 )); then
- dch=�
- else
- dch=${wc#1#}
- fi
- if (( (pos & 7) == 7 )); then
- dasc=$dasc$dch
- dch=
- elif (( (pos & 7) == 0 )); then
- (( pos )) && print "$dasc|"
- print -n "${pos#16#} "
- dasc=' |'
- fi
- let hv=wc
- print -n "${hv#16#} "
- (( (pos++ & 7) == 3 )) && \
- print -n -- '- '
- dasc=$dasc$dch
- done
- done
- while (( pos & 7 )); do
- print -n ' '
- (( (pos++ & 7) == 3 )) && print -n -- '- '
- done
- (( hv == 2147483647 )) || print "$dasc|"
- }
-expected-stdout:
- 00000000 0048 0065 006C 006C - 006F 002C 0020 0057 |Hello, W|
- 00000008 006F 0072 006C 0064 - 0021 005C 000A 3053 |orld!\.こ|
- 00000010 3093 306B 3061 306F - FF01 000A 0001 0002 |んにちは！...|
- 00000018 0003 0004 0005 0006 - 0007 0008 0009 000A |........|
- 00000020 000B 000C 000D 000E - 000F 0010 0011 0012 |........|
- 00000028 0013 0014 0015 0016 - 0017 0018 0019 001A |........|
- 00000030 001B 001C 001D 001E - 001F 0020 0021 0022 |..... !"|
- 00000038 0023 0024 0025 0026 - 0027 0028 0029 002A |#$%&'()*|
- 00000040 002B 002C 002D 002E - 002F 0030 0031 0032 |+,-./012|
- 00000048 0033 0034 0035 0036 - 0037 0038 0039 003A |3456789:|
- 00000050 003B 003C 003D 003E - 003F 0040 0041 0042 |;<=>?@AB|
- 00000058 0043 0044 0045 0046 - 0047 0048 0049 004A |CDEFGHIJ|
- 00000060 004B 004C 004D 004E - 004F 0050 0051 0052 |KLMNOPQR|
- 00000068 0053 0054 0055 0056 - 0057 0058 0059 005A |STUVWXYZ|
- 00000070 005B 005C 005D 005E - 005F 0060 0061 0062 |[\]^_`ab|
- 00000078 0063 0064 0065 0066 - 0067 0068 0069 006A |cdefghij|
- 00000080 006B 006C 006D 006E - 006F 0070 0071 0072 |klmnopqr|
- 00000088 0073 0074 0075 0076 - 0077 0078 0079 007A |stuvwxyz|
- 00000090 007B 007C 007D 007E - 007F 0080 0081 0082 |{|}~....|
- 00000098 0083 0084 0085 0086 - 0087 0088 0089 008A |........|
- 000000A0 008B 008C 008D 008E - 008F 0090 0091 0092 |........|
- 000000A8 0093 0094 0095 0096 - 0097 0098 0099 009A |........|
- 000000B0 009B 009C 009D 009E - 009F 00A0 00A1 00A2 |..... ¡¢|
- 000000B8 00A3 00A4 00A5 00A6 - 00A7 00A8 00A9 00AA |£¤¥¦§¨©ª|
- 000000C0 00AB 00AC 00AD 00AE - 00AF 00B0 00B1 00B2 |«¬®¯°±²|
- 000000C8 00B3 00B4 00B5 00B6 - 00B7 00B8 00B9 00BA |³´µ¶·¸¹º|
- 000000D0 00BB 00BC 00BD 00BE - 00BF 00C0 00C1 00C2 |»¼½¾¿ÀÁÂ|
- 000000D8 00C3 00C4 00C5 00C6 - 00C7 00C8 00C9 00CA |ÃÄÅÆÇÈÉÊ|
- 000000E0 00CB 00CC 00CD 00CE - 00CF 00D0 00D1 00D2 |ËÌÍÎÏÐÑÒ|
- 000000E8 00D3 00D4 00D5 00D6 - 00D7 00D8 00D9 00DA |ÓÔÕÖ×ØÙÚ|
- 000000F0 00DB 00DC 00DD 00DE - 00DF 00E0 00E1 00E2 |ÛÜÝÞßàáâ|
- 000000F8 00E3 00E4 00E5 00E6 - 00E7 00E8 00E9 00EA |ãäåæçèéê|
- 00000100 00EB 00EC 00ED 00EE - 00EF 00F0 00F1 00F2 |ëìíîïðñò|
- 00000108 00F3 00F4 00F5 00F6 - 00F7 00F8 00F9 00FA |óôõö÷øùú|
- 00000110 00FB 00FC 00FD 00FE - 00FF 000A EFFF 000A |ûüýþÿ.�.|
- 00000118 EFC2 000A EFEF EFBF - EFC0 000A EFC0 EF80 |�.���.��|
- 00000120 000A EFE0 EF80 EF80 - 000A FFFD EFEF EFBF |.���.���|
- 00000128 EFBE EFEF EFBF EFBF - 000A 007A 000A |����.z.|
----
-name: integer-base-one-3Ar
-description:
- some sample code for hexdumping; NUL and binary safe
-stdin:
- {
- print 'Hello, World!\\\nこんにちは！'
- typeset -Uui16 i=0x100
- # change that to 0xFF once we can handle embedded
- # NUL characters in strings / here documents
- while (( i++ < 0x1FF )); do
- print -n "\x${i#16#1}"
- done
- print '\0z'
- } | {
- # integer-base-one-3Ar
- typeset -Uui16 -Z11 pos=0
- typeset -Uui16 -Z5 hv=2147483647
- dasc=
- if read -arN -1 line; then
- typeset -i1 line
- i=0
- while (( i < ${#line[*]} )); do
- hv=${line[i++]}
- if (( (pos & 15) == 0 )); then
- (( pos )) && print "$dasc|"
- print -n "${pos#16#} "
- dasc=' |'
- fi
- print -n "${hv#16#} "
- if (( (hv < 32) || (hv > 126) )); then
- dasc=$dasc.
- else
- dasc=$dasc${line[i-1]#1#}
- fi
- (( (pos++ & 15) == 7 )) && print -n -- '- '
- done
- fi
- while (( pos & 15 )); do
- print -n ' '
- (( (pos++ & 15) == 7 )) && print -n -- '- '
- done
- (( hv == 2147483647 )) || print "$dasc|"
- }
-expected-stdout:
- 00000000 48 65 6C 6C 6F 2C 20 57 - 6F 72 6C 64 21 5C 0A E3 |Hello, World!\..|
- 00000010 81 93 E3 82 93 E3 81 AB - E3 81 A1 E3 81 AF EF BC |................|
- 00000020 81 0A 01 02 03 04 05 06 - 07 08 09 0A 0B 0C 0D 0E |................|
- 00000030 0F 10 11 12 13 14 15 16 - 17 18 19 1A 1B 1C 1D 1E |................|
- 00000040 1F 20 21 22 23 24 25 26 - 27 28 29 2A 2B 2C 2D 2E |. !"#$%&'()*+,-.|
- 00000050 2F 30 31 32 33 34 35 36 - 37 38 39 3A 3B 3C 3D 3E |/0123456789:;<=>|
- 00000060 3F 40 41 42 43 44 45 46 - 47 48 49 4A 4B 4C 4D 4E |?@ABCDEFGHIJKLMN|
- 00000070 4F 50 51 52 53 54 55 56 - 57 58 59 5A 5B 5C 5D 5E |OPQRSTUVWXYZ[\]^|
- 00000080 5F 60 61 62 63 64 65 66 - 67 68 69 6A 6B 6C 6D 6E |_`abcdefghijklmn|
- 00000090 6F 70 71 72 73 74 75 76 - 77 78 79 7A 7B 7C 7D 7E |opqrstuvwxyz{|}~|
- 000000A0 7F 80 81 82 83 84 85 86 - 87 88 89 8A 8B 8C 8D 8E |................|
- 000000B0 8F 90 91 92 93 94 95 96 - 97 98 99 9A 9B 9C 9D 9E |................|
- 000000C0 9F A0 A1 A2 A3 A4 A5 A6 - A7 A8 A9 AA AB AC AD AE |................|
- 000000D0 AF B0 B1 B2 B3 B4 B5 B6 - B7 B8 B9 BA BB BC BD BE |................|
- 000000E0 BF C0 C1 C2 C3 C4 C5 C6 - C7 C8 C9 CA CB CC CD CE |................|
- 000000F0 CF D0 D1 D2 D3 D4 D5 D6 - D7 D8 D9 DA DB DC DD DE |................|
- 00000100 DF E0 E1 E2 E3 E4 E5 E6 - E7 E8 E9 EA EB EC ED EE |................|
- 00000110 EF F0 F1 F2 F3 F4 F5 F6 - F7 F8 F9 FA FB FC FD FE |................|
- 00000120 FF 00 7A 0A - |..z.|
----
-name: integer-base-one-3Wr
-description:
- some sample code for hexdumping Unicode; NUL and binary safe
-stdin:
- set -U
- {
- print 'Hello, World!\\\nこんにちは！'
- typeset -Uui16 i=0x100
- # change that to 0xFF once we can handle embedded
- # NUL characters in strings / here documents
- while (( i++ < 0x1FF )); do
- print -n "\u${i#16#1}"
- done
- print
- print \\xff # invalid utf-8
- print \\xc2 # invalid 2-byte
- print \\xef\\xbf\\xc0 # invalid 3-byte
- print \\xc0\\x80 # non-minimalistic
- print \\xe0\\x80\\x80 # non-minimalistic
- print '�\x{FFFE}\x{FFFF}' # end of range
- print '\0z' # embedded NUL
- } | {
- # integer-base-one-3Wr
- typeset -Uui16 -Z11 pos=0
- typeset -Uui16 -Z7 hv=2147483647
- dasc=
- if read -arN -1 line; then
- typeset -i1 line
- i=0
- while (( i < ${#line[*]} )); do
- hv=${line[i++]}
- if (( (hv < 32) || \
- ((hv > 126) && (hv < 160)) )); then
- dch=.
- elif (( (hv & 0xFF80) == 0xEF80 )); then
- dch=�
- else
- dch=${line[i-1]#1#}
- fi
- if (( (pos & 7) == 7 )); then
- dasc=$dasc$dch
- dch=
- elif (( (pos & 7) == 0 )); then
- (( pos )) && print "$dasc|"
- print -n "${pos#16#} "
- dasc=' |'
- fi
- print -n "${hv#16#} "
- (( (pos++ & 7) == 3 )) && \
- print -n -- '- '
- dasc=$dasc$dch
- done
- fi
- while (( pos & 7 )); do
- print -n ' '
- (( (pos++ & 7) == 3 )) && print -n -- '- '
- done
- (( hv == 2147483647 )) || print "$dasc|"
- }
-expected-stdout:
- 00000000 0048 0065 006C 006C - 006F 002C 0020 0057 |Hello, W|
- 00000008 006F 0072 006C 0064 - 0021 005C 000A 3053 |orld!\.こ|
- 00000010 3093 306B 3061 306F - FF01 000A 0001 0002 |んにちは！...|
- 00000018 0003 0004 0005 0006 - 0007 0008 0009 000A |........|
- 00000020 000B 000C 000D 000E - 000F 0010 0011 0012 |........|
- 00000028 0013 0014 0015 0016 - 0017 0018 0019 001A |........|
- 00000030 001B 001C 001D 001E - 001F 0020 0021 0022 |..... !"|
- 00000038 0023 0024 0025 0026 - 0027 0028 0029 002A |#$%&'()*|
- 00000040 002B 002C 002D 002E - 002F 0030 0031 0032 |+,-./012|
- 00000048 0033 0034 0035 0036 - 0037 0038 0039 003A |3456789:|
- 00000050 003B 003C 003D 003E - 003F 0040 0041 0042 |;<=>?@AB|
- 00000058 0043 0044 0045 0046 - 0047 0048 0049 004A |CDEFGHIJ|
- 00000060 004B 004C 004D 004E - 004F 0050 0051 0052 |KLMNOPQR|
- 00000068 0053 0054 0055 0056 - 0057 0058 0059 005A |STUVWXYZ|
- 00000070 005B 005C 005D 005E - 005F 0060 0061 0062 |[\]^_`ab|
- 00000078 0063 0064 0065 0066 - 0067 0068 0069 006A |cdefghij|
- 00000080 006B 006C 006D 006E - 006F 0070 0071 0072 |klmnopqr|
- 00000088 0073 0074 0075 0076 - 0077 0078 0079 007A |stuvwxyz|
- 00000090 007B 007C 007D 007E - 007F 0080 0081 0082 |{|}~....|
- 00000098 0083 0084 0085 0086 - 0087 0088 0089 008A |........|
- 000000A0 008B 008C 008D 008E - 008F 0090 0091 0092 |........|
- 000000A8 0093 0094 0095 0096 - 0097 0098 0099 009A |........|
- 000000B0 009B 009C 009D 009E - 009F 00A0 00A1 00A2 |..... ¡¢|
- 000000B8 00A3 00A4 00A5 00A6 - 00A7 00A8 00A9 00AA |£¤¥¦§¨©ª|
- 000000C0 00AB 00AC 00AD 00AE - 00AF 00B0 00B1 00B2 |«¬®¯°±²|
- 000000C8 00B3 00B4 00B5 00B6 - 00B7 00B8 00B9 00BA |³´µ¶·¸¹º|
- 000000D0 00BB 00BC 00BD 00BE - 00BF 00C0 00C1 00C2 |»¼½¾¿ÀÁÂ|
- 000000D8 00C3 00C4 00C5 00C6 - 00C7 00C8 00C9 00CA |ÃÄÅÆÇÈÉÊ|
- 000000E0 00CB 00CC 00CD 00CE - 00CF 00D0 00D1 00D2 |ËÌÍÎÏÐÑÒ|
- 000000E8 00D3 00D4 00D5 00D6 - 00D7 00D8 00D9 00DA |ÓÔÕÖ×ØÙÚ|
- 000000F0 00DB 00DC 00DD 00DE - 00DF 00E0 00E1 00E2 |ÛÜÝÞßàáâ|
- 000000F8 00E3 00E4 00E5 00E6 - 00E7 00E8 00E9 00EA |ãäåæçèéê|
- 00000100 00EB 00EC 00ED 00EE - 00EF 00F0 00F1 00F2 |ëìíîïðñò|
- 00000108 00F3 00F4 00F5 00F6 - 00F7 00F8 00F9 00FA |óôõö÷øùú|
- 00000110 00FB 00FC 00FD 00FE - 00FF 000A EFFF 000A |ûüýþÿ.�.|
- 00000118 EFC2 000A EFEF EFBF - EFC0 000A EFC0 EF80 |�.���.��|
- 00000120 000A EFE0 EF80 EF80 - 000A FFFD EFEF EFBF |.���.���|
- 00000128 EFBE EFEF EFBF EFBF - 000A 0000 007A 000A |����..z.|
----
-name: integer-base-one-4
-description:
- Check if ksh93-style base-one integers work
-category: !smksh
-stdin:
- set -U
- echo 1 $(('a'))
- (echo 2f $(('aa'))) 2>&1 | sed "s/^[^']*'/2p '/"
- echo 3 $(('…'))
- x="'a'"
- echo "4 <$x>"
- echo 5 $(($x))
- echo 6 $((x))
-expected-stdout:
- 1 97
- 2p 'aa': multi-character character constant
- 3 8230
- 4 <'a'>
- 5 97
- 6 97
----
-name: integer-base-one-5A
-description:
- Check to see that we’re NUL and Unicode safe
-stdin:
- set +U
- print 'a\0b\xfdz' >x
- read -a y <x
- set -U
- typeset -Uui16 y
- print ${y[*]} .
-expected-stdout:
- 16#61 16#0 16#62 16#FD 16#7A .
----
-name: integer-base-one-5W
-description:
- Check to see that we’re NUL and Unicode safe
-stdin:
- set -U
- print 'a\0b€c' >x
- read -a y <x
- set +U
- typeset -Uui16 y
- print ${y[*]} .
-expected-stdout:
- 16#61 16#0 16#62 16#20AC 16#63 .
----
-name: ulimit-1
-description:
- Check if we can use a specific syntax idiom for ulimit
-category: !os:syllable
-stdin:
- if ! x=$(ulimit -d) || [[ $x = unknown ]]; then
- #echo expected to fail on this OS
- echo okay
- else
- ulimit -dS $x && echo okay
- fi
-expected-stdout:
- okay
----
-name: redir-1
-description:
- Check some of the most basic invariants of I/O redirection
-stdin:
- i=0
- function d {
- print o$i.
- print -u2 e$((i++)).
- }
- d >a 2>b
- echo =1=
- cat a
- echo =2=
- cat b
- echo =3=
- d 2>&1 >c
- echo =4=
- cat c
- echo =5=
-expected-stdout:
- =1=
- o0.
- =2=
- e0.
- =3=
- e1.
- =4=
- o1.
- =5=
----
-name: bashiop-1
-description:
- Check if GNU bash-like I/O redirection works
- Part 1: this is also supported by GNU bash
-category: shell:legacy-no
-stdin:
- exec 3>&1
- function threeout {
- echo ras
- echo dwa >&2
- echo tri >&3
- }
- threeout &>foo
- echo ===
- cat foo
-expected-stdout:
- tri
- ===
- ras
- dwa
----
-name: bashiop-2a
-description:
- Check if GNU bash-like I/O redirection works
- Part 2: this is *not* supported by GNU bash
-category: shell:legacy-no
-stdin:
- exec 3>&1
- function threeout {
- echo ras
- echo dwa >&2
- echo tri >&3
- }
- threeout 3&>foo
- echo ===
- cat foo
-expected-stdout:
- ras
- ===
- dwa
- tri
----
-name: bashiop-2b
-description:
- Check if GNU bash-like I/O redirection works
- Part 2: this is *not* supported by GNU bash
-category: shell:legacy-no
-stdin:
- exec 3>&1
- function threeout {
- echo ras
- echo dwa >&2
- echo tri >&3
- }
- threeout 3>foo &>&3
- echo ===
- cat foo
-expected-stdout:
- ===
- ras
- dwa
- tri
----
-name: bashiop-2c
-description:
- Check if GNU bash-like I/O redirection works
- Part 2: this is supported by GNU bash 4 only
-category: shell:legacy-no
-stdin:
- echo mir >foo
- set -o noclobber
- exec 3>&1
- function threeout {
- echo ras
- echo dwa >&2
- echo tri >&3
- }
- threeout &>>foo
- echo ===
- cat foo
-expected-stdout:
- tri
- ===
- mir
- ras
- dwa
----
-name: bashiop-3a
-description:
- Check if GNU bash-like I/O redirection fails correctly
- Part 1: this is also supported by GNU bash
-category: shell:legacy-no
-stdin:
- echo mir >foo
- set -o noclobber
- exec 3>&1
- function threeout {
- echo ras
- echo dwa >&2
- echo tri >&3
- }
- threeout &>foo
- echo ===
- cat foo
-expected-stdout:
- ===
- mir
-expected-stderr-pattern: /.*: can't (create|overwrite) .*/
----
-name: bashiop-3b
-description:
- Check if GNU bash-like I/O redirection fails correctly
- Part 2: this is *not* supported by GNU bash
-category: shell:legacy-no
-stdin:
- echo mir >foo
- set -o noclobber
- exec 3>&1
- function threeout {
- echo ras
- echo dwa >&2
- echo tri >&3
- }
- threeout &>|foo
- echo ===
- cat foo
-expected-stdout:
- tri
- ===
- ras
- dwa
----
-name: bashiop-4
-description:
- Check if GNU bash-like I/O redirection works
- Part 4: this is also supported by GNU bash,
- but failed in some mksh versions
-category: shell:legacy-no
-stdin:
- exec 3>&1
- function threeout {
- echo ras
- echo dwa >&2
- echo tri >&3
- }
- function blubb {
- [[ -e bar ]] && threeout "$bf" &>foo
- }
- blubb
- echo -n >bar
- blubb
- echo ===
- cat foo
-expected-stdout:
- tri
- ===
- ras
- dwa
----
-name: bashiop-5-normal
-description:
- Check if GNU bash-like I/O redirection is only supported
- in !POSIX !sh mode as it breaks existing scripts' syntax
-category: shell:legacy-no
-stdin:
- :>x; echo 1 "$("$__progname" -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
- :>x; echo 2 "$("$__progname" -o posix -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
- :>x; echo 3 "$("$__progname" -o sh -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
-expected-stdout:
- 1 = foo echo bar .
- 2 = bar .
- 3 = bar .
----
-name: bashiop-5-legacy
-description:
- Check if GNU bash-like I/O redirection is not parsed
- in lksh as it breaks existing scripts' syntax
-category: shell:legacy-yes
-stdin:
- :>x; echo 1 "$("$__progname" -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
- :>x; echo 2 "$("$__progname" -o posix -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
- :>x; echo 3 "$("$__progname" -o sh -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
-expected-stdout:
- 1 = bar .
- 2 = bar .
- 3 = bar .
----
-name: mkshiop-1
-description:
- Check for support of more than 9 file descriptors
-category: !convfds
-stdin:
- read -u10 foo 10<<< bar
- echo x$foo
-expected-stdout:
- xbar
----
-name: mkshiop-2
-description:
- Check for support of more than 9 file descriptors
-category: !convfds
-stdin:
- exec 12>foo
- print -u12 bar
- echo baz >&12
- cat foo
-expected-stdout:
- bar
- baz
----
-name: oksh-eval
-description:
- $OpenBSD: eval.sh,v 1.1 2010/03/24 08:29:44 fgsch Exp $
-stdin:
- a=
- for n in ${a#*=}; do echo 1hu ${n} .; done
- for n in "${a#*=}"; do echo 1hq ${n} .; done
- for n in ${a##*=}; do echo 2hu ${n} .; done
- for n in "${a##*=}"; do echo 2hq ${n} .; done
- for n in ${a%=*}; do echo 1pu ${n} .; done
- for n in "${a%=*}"; do echo 1pq ${n} .; done
- for n in ${a%%=*}; do echo 2pu ${n} .; done
- for n in "${a%%=*}"; do echo 2pq ${n} .; done
-expected-stdout:
- 1hq .
- 2hq .
- 1pq .
- 2pq .
----
-name: oksh-and-list-error-1
-description:
- Test exit status of rightmost element in 2 element && list in -e mode
-stdin:
- true && false
- echo "should not print"
-arguments: !-e!
-expected-exit: e != 0
----
-name: oksh-and-list-error-2
-description:
- Test exit status of rightmost element in 3 element && list in -e mode
-stdin:
- true && true && false
- echo "should not print"
-arguments: !-e!
-expected-exit: e != 0
----
-name: oksh-or-list-error-1
-description:
- Test exit status of || list in -e mode
-stdin:
- false || false
- echo "should not print"
-arguments: !-e!
-expected-exit: e != 0
----
-name: oksh-longline-crash
-description:
- This used to cause a core dump
-stdin:
- ulimit -c 0
- deplibs="-lz -lpng /usr/local/lib/libjpeg.la -ltiff -lm -lX11 -lXext /usr/local/lib/libiconv.la -L/usr/local/lib -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libglib.la /usr/local/lib/libgmodule.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgdk.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgtk.la -ltiff -ljpeg -lz -lpng -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgdk_pixbuf.la -lz -lpng /usr/local/lib/libiconv.la -L/usr/local/lib -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libglib.la -lm -lm /usr/local/lib/libaudiofile.la -lm -lm -laudiofile -L/usr/local/lib /usr/local/lib/libesd.la -lm -lz -L/usr/local/lib /usr/local/lib/libgnomesupport.la -lm -lz -lm -lglib -L/usr/local/lib /usr/local/lib/libgnome.la -lX11 -lXext /usr/local/lib/libiconv.la -L/usr/local/lib -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libgmodule.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgdk.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgtk.la -lICE -lSM -lz -lpng /usr/local/lib/libungif.la /usr/local/lib/libjpeg.la -ltiff -lm -lz -lpng /usr/local/lib/libungif.la -lz /usr/local/lib/libjpeg.la -ltiff -L/usr/local/lib -L/usr/X11R6/lib /usr/local/lib/libgdk_imlib.la -lm -L/usr/local/lib /usr/local/lib/libart_lgpl.la -lm -lz -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -lICE -lSM -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -L/usr/X11R6/lib -lm -lz -lpng -lungif -lz -ljpeg -ltiff -ljpeg -lgdk_imlib -lglib -lm -laudiofile -lm -laudiofile -lesd -L/usr/local/lib /usr/local/lib/libgnomeui.la -lz -lz /usr/local/lib/libxml.la -lz -lz -lz /usr/local/lib!
/libxml.la -lm -lX11 -lXext /usr/local/lib/libiconv.la -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libglib.la /usr/local/lib/libgmodule.la -lintl -lglib -lgmodule /usr/local/lib/libgdk.la /usr/local/lib/libgtk.la -L/usr/X11R6/lib -L/usr/local/lib /usr/local/lib/libglade.la -lz -lz -lz /usr/local/lib/libxml.la /usr/local/lib/libglib.la -lm -lm /usr/local/lib/libaudiofile.la -lm -lm -laudiofile /usr/local/lib/libesd.la -lm -lz /usr/local/lib/libgnomesupport.la -lm -lz -lm -lglib /usr/local/lib/libgnome.la -lX11 -lXext /usr/local/lib/libiconv.la -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libgmodule.la -lintl -lm -lX11 -lXext -lglib -lgmodule /usr/local/lib/libgdk.la -lintl -lm -lX11 -lXext -lglib -lgmodule /usr/local/lib/libgtk.la -lICE -lSM -lz -lpng /usr/local/lib/libungif.la /usr/local/lib/libjpeg.la -ltiff -lm -lz -lz /usr/local/lib/libgdk_imlib.la /usr/local/lib/libart_lgpl.la -lm -lz -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -lm -lz -lungif -lz -ljpeg -ljpeg -lgdk_imlib -lglib -lm -laudiofile -lm -laudiofile -lesd /usr/local/lib/libgnomeui.la -L/usr/X11R6/lib -L/usr/local/lib /usr/local/lib/libglade-gnome.la /usr/local/lib/libglib.la -lm -lm /usr/local/lib/libaudiofile.la -lm -lm -laudiofile -L/usr/local/lib /usr/local/lib/libesd.la -lm -lz -L/usr/local/lib /usr/local/lib/libgnomesupport.la -lm -lz -lm -lglib -L/usr/local/lib /usr/local/lib/libgnome.la -lX11 -lXext /usr/local/lib/libiconv.la -L/usr/local/lib -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libgmodule.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgdk.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgtk.la -lICE -lSM -lz -lpng /usr/local/lib/libungif.la /usr/local/lib/libjpeg.la -ltiff -!
lm -lz -lpng /usr/local/lib/libungif.la -lz /usr/local/lib/libjpeg.la -ltiff -L/usr/local/lib -L/usr/X11R6/lib /usr/local/lib/libgdk_imlib.la -lm -L/usr/local/lib /usr/local/lib/libart_lgpl.la -lm -lz -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -lICE -lSM -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -L/usr/X11R6/lib -lm -lz -lpng -lungif -lz -ljpeg -ltiff -ljpeg -lgdk_imlib -lglib -lm -laudiofile -lm -laudiofile -lesd -L/usr/local/lib /usr/local/lib/libgnomeui.la -L/usr/X11R6/lib -L/usr/local/lib"
- specialdeplibs="-lgnomeui -lart_lgpl -lgdk_imlib -ltiff -ljpeg -lungif -lpng -lz -lSM -lICE -lgtk -lgdk -lgmodule -lintl -lXext -lX11 -lgnome -lgnomesupport -lesd -laudiofile -lm -lglib"
- for deplib in $deplibs; do
- case $deplib in
- -L*)
- new_libs="$deplib $new_libs"
- ;;
- *)
- case " $specialdeplibs " in
- *" $deplib "*)
- new_libs="$deplib $new_libs";;
- esac
- ;;
- esac
- done
----
-name: oksh-seterror-1
-description:
- The -e flag should be ignored when executing a compound list
- followed by an if statement.
-stdin:
- if true; then false && false; fi
- true
-arguments: !-e!
-expected-exit: e == 0
----
-name: oksh-seterror-2
-description:
- The -e flag should be ignored when executing a compound list
- followed by an if statement.
-stdin:
- if true; then if true; then false && false; fi; fi
- true
-arguments: !-e!
-expected-exit: e == 0
----
-name: oksh-seterror-3
-description:
- The -e flag should be ignored when executing a compound list
- followed by an elif statement.
-stdin:
- if true; then :; elif true; then false && false; fi
-arguments: !-e!
-expected-exit: e == 0
----
-name: oksh-seterror-4
-description:
- The -e flag should be ignored when executing a pipeline
- beginning with '!'
-stdin:
- for i in 1 2 3
- do
- false && false
- true || false
- done
-arguments: !-e!
-expected-exit: e == 0
----
-name: oksh-seterror-5
-description:
- The -e flag should be ignored when executing a pipeline
- beginning with '!'
-stdin:
- ! true | false
- true
-arguments: !-e!
-expected-exit: e == 0
----
-name: oksh-seterror-6
-description:
- When trapping ERR and EXIT, both traps should run in -e mode
- when an error occurs.
-stdin:
- trap 'echo EXIT' EXIT
- trap 'echo ERR' ERR
- set -e
- false
- echo DONE
- exit 0
-arguments: !-e!
-expected-exit: e != 0
-expected-stdout:
- ERR
- EXIT
----
-name: oksh-seterror-7
-description:
- The -e flag within a command substitution should be honored
-stdin:
- echo $( set -e; false; echo foo )
-arguments: !-e!
-expected-stdout:
-
----
-name: oksh-input-comsub
-description:
- A command substitution using input redirection should exit with
- failure if the input file does not exist.
-stdin:
- var=$(< non-existent)
-expected-exit: e != 0
-expected-stderr-pattern: /non-existent/
----
-name: oksh-empty-for-list
-description:
- A for list which expands to zero items should not execute the body.
-stdin:
- set foo bar baz ; for out in ; do echo $out ; done
----
-name: oksh-varfunction-mod1
-description:
- $OpenBSD: varfunction.sh,v 1.1 2003/12/15 05:28:40 otto Exp $
- Calling
- FOO=bar f
- where f is a ksh style function, should not set FOO in the current
- env. If f is a Bourne style function, FOO should be set. Furthermore,
- the function should receive a correct value of FOO. However, differing
- from oksh, setting FOO in the function itself must change the value in
- setting FOO in the function itself should not change the value in
- global environment.
- Inspired by PR 2450.
-stdin:
- print '#!'"$__progname"'\nunset RANDOM\nexport | while IFS= read -r' \
- 'RANDOM; do eval '\''print -r -- "$RANDOM=$'\''"$RANDOM"'\'\"\'\; \
- done >env; chmod +x env; PATH=.:$PATH
- function k {
- if [ x$FOO != xbar ]; then
- echo 1
- return 1
- fi
- x=$(env | grep FOO)
- if [ "x$x" != "xFOO=bar" ]; then
- echo 2
- return 1;
- fi
- FOO=foo
- return 0
- }
- b () {
- if [ x$FOO != xbar ]; then
- echo 3
- return 1
- fi
- x=$(env | grep FOO)
- if [ "x$x" != "xFOO=bar" ]; then
- echo 4
- return 1;
- fi
- FOO=foo
- return 0
- }
- FOO=bar k
- if [ $? != 0 ]; then
- exit 1
- fi
- if [ x$FOO != x ]; then
- exit 1
- fi
- FOO=bar b
- if [ $? != 0 ]; then
- exit 1
- fi
- if [ x$FOO != xfoo ]; then
- exit 1
- fi
- FOO=barbar
- FOO=bar k
- if [ $? != 0 ]; then
- exit 1
- fi
- if [ x$FOO != xbarbar ]; then
- exit 1
- fi
- FOO=bar b
- if [ $? != 0 ]; then
- exit 1
- fi
- if [ x$FOO != xfoo ]; then
- exit 1
- fi
----
-name: fd-cloexec-1
-description:
- Verify that file descriptors > 2 are private for Korn shells
- AT&T ksh93 does this still, which means we must keep it as well
-category: shell:legacy-no
-file-setup: file 644 "test.sh"
- echo >&3 Fowl
-stdin:
- exec 3>&1
- "$__progname" test.sh
-expected-exit: e != 0
-expected-stderr-pattern:
- /bad file descriptor/
----
-name: fd-cloexec-2
-description:
- Verify that file descriptors > 2 are not private for POSIX shells
- See Debian Bug #154540, Closes: #499139
-file-setup: file 644 "test.sh"
- echo >&3 Fowl
-stdin:
- test -n "$POSH_VERSION" || set -o sh
- exec 3>&1
- "$__progname" test.sh
-expected-stdout:
- Fowl
----
-name: fd-cloexec-3
-description:
- Verify that file descriptors > 2 are not private for LEGACY KSH
-category: shell:legacy-yes
-file-setup: file 644 "test.sh"
- echo >&3 Fowl
-stdin:
- exec 3>&1
- "$__progname" test.sh
-expected-stdout:
- Fowl
----
-name: comsub-1a
-description:
- COMSUB are now parsed recursively, so this works
- see also regression-6: matching parenthesēs bug
- Fails on: pdksh bash2 bash3 zsh
- Passes on: bash4 ksh93 mksh(20110313+)
-stdin:
- echo 1 $(case 1 in (1) echo yes;; (2) echo no;; esac) .
- echo 2 $(case 1 in 1) echo yes;; 2) echo no;; esac) .
- TEST=1234; echo 3 ${TEST: $(case 1 in (1) echo 1;; (*) echo 2;; esac)} .
- TEST=5678; echo 4 ${TEST: $(case 1 in 1) echo 1;; *) echo 2;; esac)} .
- a=($(case 1 in (1) echo 1;; (*) echo 2;; esac)); echo 5 ${a[0]} .
- a=($(case 1 in 1) echo 1;; *) echo 2;; esac)); echo 6 ${a[0]} .
-expected-stdout:
- 1 yes .
- 2 yes .
- 3 234 .
- 4 678 .
- 5 1 .
- 6 1 .
----
-name: comsub-1b
-description:
- COMSUB are now parsed recursively, so this works
- Fails on: pdksh bash2 bash3 bash4 zsh
- Passes on: ksh93 mksh(20110313+)
-stdin:
- echo 1 $(($(case 1 in (1) echo 1;; (*) echo 2;; esac)+10)) .
- echo 2 $(($(case 1 in 1) echo 1;; *) echo 2;; esac)+20)) .
- (( a = $(case 1 in (1) echo 1;; (*) echo 2;; esac) )); echo 3 $a .
- (( a = $(case 1 in 1) echo 1;; *) echo 2;; esac) )); echo 4 $a .
- a=($(($(case 1 in (1) echo 1;; (*) echo 2;; esac)+10))); echo 5 ${a[0]} .
- a=($(($(case 1 in 1) echo 1;; *) echo 2;; esac)+20))); echo 6 ${a[0]} .
-expected-stdout:
- 1 11 .
- 2 21 .
- 3 1 .
- 4 1 .
- 5 11 .
- 6 21 .
----
-name: comsub-2
-description:
- RedHat BZ#496791 – another case of missing recursion
- in parsing COMSUB expressions
- Fails on: pdksh bash2 bash3¹ bash4¹ zsh
- Passes on: ksh93 mksh(20110305+)
- ① bash[34] seem to choke on comment ending with backslash-newline
-stdin:
- # a comment with " ' \
- x=$(
- echo yes
- # a comment with " ' \
- )
- echo $x
-expected-stdout:
- yes
----
-name: comsub-3
-description:
- Extended test for COMSUB explaining why a recursive parser
- is a must (a non-recursive parser cannot pass all three of
- these test cases, especially the ‘#’ is difficult)
-stdin:
- print '#!'"$__progname"'\necho 1234' >id; chmod +x id; PATH=.:$PATH
- echo $(typeset -i10 x=16#20; echo $x)
- echo $(typeset -Uui16 x=16#$(id -u)
- ) .
- echo $(c=1; d=1
- typeset -Uui16 a=36#foo; c=2
- typeset -Uui16 b=36 #foo; d=2
- echo $a $b $c $d)
-expected-stdout:
- 32
- .
- 16#4F68 16#24 2 1
----
-name: comsub-4
-description:
- Check the tree dump functions for !MKSH_SMALL functionality
-category: !smksh
-stdin:
- x() { case $1 in u) echo x ;;& *) echo $1 ;; esac; }
- typeset -f x
-expected-stdout:
- x() {
- case $1 in
- (u)
- echo x
- ;|
- (*)
- echo $1
- ;;
- esac
- }
----
-name: comsub-5
-description:
- Check COMSUB works with aliases (does not expand them twice)
-stdin:
- print '#!'"$__progname"'\nfor x in "$@"; do print -r -- "$x"; done' >pfn
- chmod +x pfn
- alias echo='echo a'
- foo() {
- ./pfn "$(echo foo)"
- }
- ./pfn "$(echo b)"
- typeset -f foo
-expected-stdout:
- a b
- foo() {
- ./pfn "$(echo foo )"
- }
----
-name: comsub-torture
-description:
- Check the tree dump functions work correctly
-stdin:
- if [[ -z $__progname ]]; then echo >&2 call me with __progname; exit 1; fi
- while IFS= read -r line; do
- if [[ $line = '#1' ]]; then
- lastf=0
- continue
- elif [[ $line = EOFN* ]]; then
- fbody=$fbody$'\n'$line
- continue
- elif [[ $line != '#'* ]]; then
- fbody=$fbody$'\n\t'$line
- continue
- fi
- if (( lastf )); then
- x="inline_${nextf}() {"$fbody$'\n}\n'
- print -nr -- "$x"
- print -r -- "${x}typeset -f inline_$nextf" | "$__progname"
- x="function comsub_$nextf { x=\$("$fbody$'\n); }\n'
- print -nr -- "$x"
- print -r -- "${x}typeset -f comsub_$nextf" | "$__progname"
- x="function reread_$nextf { x=\$(("$fbody$'\n)|tr u x); }\n'
- print -nr -- "$x"
- print -r -- "${x}typeset -f reread_$nextf" | "$__progname"
- fi
- lastf=1
- fbody=
- nextf=${line#?}
- done <<'EOD'
- #1
- #TCOM
- vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4"
- #TPAREN_TPIPE_TLIST
- (echo $foo | tr -dc 0-9; echo)
- #TAND_TOR
- cmd && echo ja || echo nein
- #TSELECT
- select file in *; do echo "<$file>" ; break ; done
- #TFOR_TTIME
- time for i in {1,2,3} ; do echo $i ; done
- #TCASE
- case $foo in 1) echo eins;& 2) echo zwei ;| *) echo kann net bis drei zählen;; esac
- #TIF_TBANG_TDBRACKET_TELIF
- if ! [[ 1 = 1 ]] ; then echo eins; elif [[ 1 = 2 ]]; then echo zwei ;else echo drei; fi
- #TWHILE
- i=1; while (( i < 10 )); do echo $i; let ++i; done
- #TUNTIL
- i=10; until (( !--i )) ; do echo $i; done
- #TCOPROC
- cat * |& ls
- #TFUNCT_TBRACE_TASYNC
- function korn { echo eins; echo zwei ; }
- bourne () { logger * & }
- #IOREAD_IOCAT
- tr x u 0<foo >>bar
- #IOWRITE_IOCLOB_IOHERE_noIOSKIP
- cat >|bar <<'EOFN'
- foo
- EOFN
- #IOWRITE_noIOCLOB_IOHERE_IOSKIP
- cat 1>bar <<-EOFI
- foo
- EOFI
- #IORDWR_IODUP
- sh 1<>/dev/console 0<&1 2>&1
- #COMSUB_EXPRSUB_FUNSUB_VALSUB
- echo $(true) $((1+ 2)) ${ :;} ${| REPLY=x;}
- #QCHAR_OQUOTE_CQUOTE
- echo fo\ob\"a\`r\'b\$az
- echo "fo\ob\"a\`r\'b\$az"
- echo 'fo\ob\"a\`r'\''b\$az'
- #OSUBST_CSUBST_OPAT_SPAT_CPAT
- [[ ${foo#bl\(u\)b} = @(bar|baz) ]]
- #heredoc_closed
- x=$(cat <<EOFN
- note there must be no space between EOFN and )
- EOFN); echo $x
- #heredoc_space
- x=$(cat <<EOFN\
- note the space between EOFN and ) is actually part of the here document marker
- EOFN ); echo $x
- #patch_motd
- x=$(sysctl -n kern.version | sed 1q)
- [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
- ed -s /etc/motd 2>&1 <<-EOF
- 1,/^\$/d
- 0a
- $x
-
- .
- wq
- EOF)" = @(?) ]] && rm -f /etc/motd
- if [[ ! -s /etc/motd ]]; then
- install -c -o root -g wheel -m 664 /dev/null /etc/motd
- print -- "$x\n" >/etc/motd
- fi
- #wdarrassign
- case x in
- x) a+=b; c+=(d e)
- esac
- #0
- EOD
-expected-stdout:
- inline_TCOM() {
- vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4"
- }
- inline_TCOM() {
- vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4"
- }
- function comsub_TCOM { x=$(
- vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4"
- ); }
- function comsub_TCOM {
- x=$(vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4" )
- }
- function reread_TCOM { x=$((
- vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4"
- )|tr u x); }
- function reread_TCOM {
- x=$(( vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4" ) | tr u x )
- }
- inline_TPAREN_TPIPE_TLIST() {
- (echo $foo | tr -dc 0-9; echo)
- }
- inline_TPAREN_TPIPE_TLIST() {
- ( echo $foo | tr -dc 0-9
- echo )
- }
- function comsub_TPAREN_TPIPE_TLIST { x=$(
- (echo $foo | tr -dc 0-9; echo)
- ); }
- function comsub_TPAREN_TPIPE_TLIST {
- x=$(( echo $foo | tr -dc 0-9 ; echo ) )
- }
- function reread_TPAREN_TPIPE_TLIST { x=$((
- (echo $foo | tr -dc 0-9; echo)
- )|tr u x); }
- function reread_TPAREN_TPIPE_TLIST {
- x=$(( ( echo $foo | tr -dc 0-9 ; echo ) ) | tr u x )
- }
- inline_TAND_TOR() {
- cmd && echo ja || echo nein
- }
- inline_TAND_TOR() {
- cmd && echo ja || echo nein
- }
- function comsub_TAND_TOR { x=$(
- cmd && echo ja || echo nein
- ); }
- function comsub_TAND_TOR {
- x=$(cmd && echo ja || echo nein )
- }
- function reread_TAND_TOR { x=$((
- cmd && echo ja || echo nein
- )|tr u x); }
- function reread_TAND_TOR {
- x=$(( cmd && echo ja || echo nein ) | tr u x )
- }
- inline_TSELECT() {
- select file in *; do echo "<$file>" ; break ; done
- }
- inline_TSELECT() {
- select file in *
- do
- echo "<$file>"
- break
- done
- }
- function comsub_TSELECT { x=$(
- select file in *; do echo "<$file>" ; break ; done
- ); }
- function comsub_TSELECT {
- x=$(select file in * ; do echo "<$file>" ; break ; done )
- }
- function reread_TSELECT { x=$((
- select file in *; do echo "<$file>" ; break ; done
- )|tr u x); }
- function reread_TSELECT {
- x=$(( select file in * ; do echo "<$file>" ; break ; done ) | tr u x )
- }
- inline_TFOR_TTIME() {
- time for i in {1,2,3} ; do echo $i ; done
- }
- inline_TFOR_TTIME() {
- time for i in {1,2,3}
- do
- echo $i
- done
- }
- function comsub_TFOR_TTIME { x=$(
- time for i in {1,2,3} ; do echo $i ; done
- ); }
- function comsub_TFOR_TTIME {
- x=$(time for i in {1,2,3} ; do echo $i ; done )
- }
- function reread_TFOR_TTIME { x=$((
- time for i in {1,2,3} ; do echo $i ; done
- )|tr u x); }
- function reread_TFOR_TTIME {
- x=$(( time for i in {1,2,3} ; do echo $i ; done ) | tr u x )
- }
- inline_TCASE() {
- case $foo in 1) echo eins;& 2) echo zwei ;| *) echo kann net bis drei zählen;; esac
- }
- inline_TCASE() {
- case $foo in
- (1)
- echo eins
- ;&
- (2)
- echo zwei
- ;|
- (*)
- echo kann net bis drei zählen
- ;;
- esac
- }
- function comsub_TCASE { x=$(
- case $foo in 1) echo eins;& 2) echo zwei ;| *) echo kann net bis drei zählen;; esac
- ); }
- function comsub_TCASE {
- x=$(case $foo in (1) echo eins ;& (2) echo zwei ;| (*) echo kann net bis drei zählen ;; esac )
- }
- function reread_TCASE { x=$((
- case $foo in 1) echo eins;& 2) echo zwei ;| *) echo kann net bis drei zählen;; esac
- )|tr u x); }
- function reread_TCASE {
- x=$(( case $foo in (1) echo eins ;& (2) echo zwei ;| (*) echo kann net bis drei zählen ;; esac ) | tr u x )
- }
- inline_TIF_TBANG_TDBRACKET_TELIF() {
- if ! [[ 1 = 1 ]] ; then echo eins; elif [[ 1 = 2 ]]; then echo zwei ;else echo drei; fi
- }
- inline_TIF_TBANG_TDBRACKET_TELIF() {
- if ! [[ 1 = 1 ]]
- then
- echo eins
- elif [[ 1 = 2 ]]
- then
- echo zwei
- else
- echo drei
- fi
- }
- function comsub_TIF_TBANG_TDBRACKET_TELIF { x=$(
- if ! [[ 1 = 1 ]] ; then echo eins; elif [[ 1 = 2 ]]; then echo zwei ;else echo drei; fi
- ); }
- function comsub_TIF_TBANG_TDBRACKET_TELIF {
- x=$(if ! [[ 1 = 1 ]] ; then echo eins ; elif [[ 1 = 2 ]] ; then echo zwei ; else echo drei ; fi )
- }
- function reread_TIF_TBANG_TDBRACKET_TELIF { x=$((
- if ! [[ 1 = 1 ]] ; then echo eins; elif [[ 1 = 2 ]]; then echo zwei ;else echo drei; fi
- )|tr u x); }
- function reread_TIF_TBANG_TDBRACKET_TELIF {
- x=$(( if ! [[ 1 = 1 ]] ; then echo eins ; elif [[ 1 = 2 ]] ; then echo zwei ; else echo drei ; fi ) | tr u x )
- }
- inline_TWHILE() {
- i=1; while (( i < 10 )); do echo $i; let ++i; done
- }
- inline_TWHILE() {
- i=1
- while let] " i < 10 "
- do
- echo $i
- let ++i
- done
- }
- function comsub_TWHILE { x=$(
- i=1; while (( i < 10 )); do echo $i; let ++i; done
- ); }
- function comsub_TWHILE {
- x=$(i=1 ; while let] " i < 10 " ; do echo $i ; let ++i ; done )
- }
- function reread_TWHILE { x=$((
- i=1; while (( i < 10 )); do echo $i; let ++i; done
- )|tr u x); }
- function reread_TWHILE {
- x=$(( i=1 ; while let] " i < 10 " ; do echo $i ; let ++i ; done ) | tr u x )
- }
- inline_TUNTIL() {
- i=10; until (( !--i )) ; do echo $i; done
- }
- inline_TUNTIL() {
- i=10
- until let] " !--i "
- do
- echo $i
- done
- }
- function comsub_TUNTIL { x=$(
- i=10; until (( !--i )) ; do echo $i; done
- ); }
- function comsub_TUNTIL {
- x=$(i=10 ; until let] " !--i " ; do echo $i ; done )
- }
- function reread_TUNTIL { x=$((
- i=10; until (( !--i )) ; do echo $i; done
- )|tr u x); }
- function reread_TUNTIL {
- x=$(( i=10 ; until let] " !--i " ; do echo $i ; done ) | tr u x )
- }
- inline_TCOPROC() {
- cat * |& ls
- }
- inline_TCOPROC() {
- cat * |&
- ls
- }
- function comsub_TCOPROC { x=$(
- cat * |& ls
- ); }
- function comsub_TCOPROC {
- x=$(cat * |& ls )
- }
- function reread_TCOPROC { x=$((
- cat * |& ls
- )|tr u x); }
- function reread_TCOPROC {
- x=$(( cat * |& ls ) | tr u x )
- }
- inline_TFUNCT_TBRACE_TASYNC() {
- function korn { echo eins; echo zwei ; }
- bourne () { logger * & }
- }
- inline_TFUNCT_TBRACE_TASYNC() {
- function korn {
- echo eins
- echo zwei
- }
- bourne() {
- logger * &
- }
- }
- function comsub_TFUNCT_TBRACE_TASYNC { x=$(
- function korn { echo eins; echo zwei ; }
- bourne () { logger * & }
- ); }
- function comsub_TFUNCT_TBRACE_TASYNC {
- x=$(function korn { echo eins ; echo zwei ; } ; bourne() { logger * & } )
- }
- function reread_TFUNCT_TBRACE_TASYNC { x=$((
- function korn { echo eins; echo zwei ; }
- bourne () { logger * & }
- )|tr u x); }
- function reread_TFUNCT_TBRACE_TASYNC {
- x=$(( function korn { echo eins ; echo zwei ; } ; bourne() { logger * & } ) | tr u x )
- }
- inline_IOREAD_IOCAT() {
- tr x u 0<foo >>bar
- }
- inline_IOREAD_IOCAT() {
- tr x u <foo >>bar
- }
- function comsub_IOREAD_IOCAT { x=$(
- tr x u 0<foo >>bar
- ); }
- function comsub_IOREAD_IOCAT {
- x=$(tr x u <foo >>bar )
- }
- function reread_IOREAD_IOCAT { x=$((
- tr x u 0<foo >>bar
- )|tr u x); }
- function reread_IOREAD_IOCAT {
- x=$(( tr x u <foo >>bar ) | tr u x )
- }
- inline_IOWRITE_IOCLOB_IOHERE_noIOSKIP() {
- cat >|bar <<'EOFN'
- foo
- EOFN
- }
- inline_IOWRITE_IOCLOB_IOHERE_noIOSKIP() {
- cat >|bar <<"EOFN"
- foo
- EOFN
-
- }
- function comsub_IOWRITE_IOCLOB_IOHERE_noIOSKIP { x=$(
- cat >|bar <<'EOFN'
- foo
- EOFN
- ); }
- function comsub_IOWRITE_IOCLOB_IOHERE_noIOSKIP {
- x=$(cat >|bar <<"EOFN"
- foo
- EOFN
- )
- }
- function reread_IOWRITE_IOCLOB_IOHERE_noIOSKIP { x=$((
- cat >|bar <<'EOFN'
- foo
- EOFN
- )|tr u x); }
- function reread_IOWRITE_IOCLOB_IOHERE_noIOSKIP {
- x=$(( cat >|bar <<"EOFN"
- foo
- EOFN
- ) | tr u x )
- }
- inline_IOWRITE_noIOCLOB_IOHERE_IOSKIP() {
- cat 1>bar <<-EOFI
- foo
- EOFI
- }
- inline_IOWRITE_noIOCLOB_IOHERE_IOSKIP() {
- cat >bar <<-EOFI
- foo
- EOFI
-
- }
- function comsub_IOWRITE_noIOCLOB_IOHERE_IOSKIP { x=$(
- cat 1>bar <<-EOFI
- foo
- EOFI
- ); }
- function comsub_IOWRITE_noIOCLOB_IOHERE_IOSKIP {
- x=$(cat >bar <<-EOFI
- foo
- EOFI
- )
- }
- function reread_IOWRITE_noIOCLOB_IOHERE_IOSKIP { x=$((
- cat 1>bar <<-EOFI
- foo
- EOFI
- )|tr u x); }
- function reread_IOWRITE_noIOCLOB_IOHERE_IOSKIP {
- x=$(( cat >bar <<-EOFI
- foo
- EOFI
- ) | tr u x )
- }
- inline_IORDWR_IODUP() {
- sh 1<>/dev/console 0<&1 2>&1
- }
- inline_IORDWR_IODUP() {
- sh 1<>/dev/console <&1 2>&1
- }
- function comsub_IORDWR_IODUP { x=$(
- sh 1<>/dev/console 0<&1 2>&1
- ); }
- function comsub_IORDWR_IODUP {
- x=$(sh 1<>/dev/console <&1 2>&1 )
- }
- function reread_IORDWR_IODUP { x=$((
- sh 1<>/dev/console 0<&1 2>&1
- )|tr u x); }
- function reread_IORDWR_IODUP {
- x=$(( sh 1<>/dev/console <&1 2>&1 ) | tr u x )
- }
- inline_COMSUB_EXPRSUB_FUNSUB_VALSUB() {
- echo $(true) $((1+ 2)) ${ :;} ${| REPLY=x;}
- }
- inline_COMSUB_EXPRSUB_FUNSUB_VALSUB() {
- echo $(true ) $((1+ 2)) ${ : ;} ${|REPLY=x ;}
- }
- function comsub_COMSUB_EXPRSUB_FUNSUB_VALSUB { x=$(
- echo $(true) $((1+ 2)) ${ :;} ${| REPLY=x;}
- ); }
- function comsub_COMSUB_EXPRSUB_FUNSUB_VALSUB {
- x=$(echo $(true ) $((1+ 2)) ${ : ;} ${|REPLY=x ;} )
- }
- function reread_COMSUB_EXPRSUB_FUNSUB_VALSUB { x=$((
- echo $(true) $((1+ 2)) ${ :;} ${| REPLY=x;}
- )|tr u x); }
- function reread_COMSUB_EXPRSUB_FUNSUB_VALSUB {
- x=$(( echo $(true ) $((1+ 2)) ${ : ;} ${|REPLY=x ;} ) | tr u x )
- }
- inline_QCHAR_OQUOTE_CQUOTE() {
- echo fo\ob\"a\`r\'b\$az
- echo "fo\ob\"a\`r\'b\$az"
- echo 'fo\ob\"a\`r'\''b\$az'
- }
- inline_QCHAR_OQUOTE_CQUOTE() {
- echo fo\ob\"a\`r\'b\$az
- echo "fo\ob\"a\`r\'b\$az"
- echo "fo\\ob\\\"a\\\`r"\'"b\\\$az"
- }
- function comsub_QCHAR_OQUOTE_CQUOTE { x=$(
- echo fo\ob\"a\`r\'b\$az
- echo "fo\ob\"a\`r\'b\$az"
- echo 'fo\ob\"a\`r'\''b\$az'
- ); }
- function comsub_QCHAR_OQUOTE_CQUOTE {
- x=$(echo fo\ob\"a\`r\'b\$az ; echo "fo\ob\"a\`r\'b\$az" ; echo "fo\\ob\\\"a\\\`r"\'"b\\\$az" )
- }
- function reread_QCHAR_OQUOTE_CQUOTE { x=$((
- echo fo\ob\"a\`r\'b\$az
- echo "fo\ob\"a\`r\'b\$az"
- echo 'fo\ob\"a\`r'\''b\$az'
- )|tr u x); }
- function reread_QCHAR_OQUOTE_CQUOTE {
- x=$(( echo fo\ob\"a\`r\'b\$az ; echo "fo\ob\"a\`r\'b\$az" ; echo "fo\\ob\\\"a\\\`r"\'"b\\\$az" ) | tr u x )
- }
- inline_OSUBST_CSUBST_OPAT_SPAT_CPAT() {
- [[ ${foo#bl\(u\)b} = @(bar|baz) ]]
- }
- inline_OSUBST_CSUBST_OPAT_SPAT_CPAT() {
- [[ ${foo#bl\(u\)b} = @(bar|baz) ]]
- }
- function comsub_OSUBST_CSUBST_OPAT_SPAT_CPAT { x=$(
- [[ ${foo#bl\(u\)b} = @(bar|baz) ]]
- ); }
- function comsub_OSUBST_CSUBST_OPAT_SPAT_CPAT {
- x=$([[ ${foo#bl\(u\)b} = @(bar|baz) ]] )
- }
- function reread_OSUBST_CSUBST_OPAT_SPAT_CPAT { x=$((
- [[ ${foo#bl\(u\)b} = @(bar|baz) ]]
- )|tr u x); }
- function reread_OSUBST_CSUBST_OPAT_SPAT_CPAT {
- x=$(( [[ ${foo#bl\(u\)b} = @(bar|baz) ]] ) | tr u x )
- }
- inline_heredoc_closed() {
- x=$(cat <<EOFN
- note there must be no space between EOFN and )
- EOFN); echo $x
- }
- inline_heredoc_closed() {
- x=$(cat <<EOFN
- note there must be no space between EOFN and )
- EOFN
- )
- echo $x
- }
- function comsub_heredoc_closed { x=$(
- x=$(cat <<EOFN
- note there must be no space between EOFN and )
- EOFN); echo $x
- ); }
- function comsub_heredoc_closed {
- x=$(x=$(cat <<EOFN
- note there must be no space between EOFN and )
- EOFN
- ) ; echo $x )
- }
- function reread_heredoc_closed { x=$((
- x=$(cat <<EOFN
- note there must be no space between EOFN and )
- EOFN); echo $x
- )|tr u x); }
- function reread_heredoc_closed {
- x=$(( x=$(cat <<EOFN
- note there must be no space between EOFN and )
- EOFN
- ) ; echo $x ) | tr u x )
- }
- inline_heredoc_space() {
- x=$(cat <<EOFN\
- note the space between EOFN and ) is actually part of the here document marker
- EOFN ); echo $x
- }
- inline_heredoc_space() {
- x=$(cat <<EOFN\
- note the space between EOFN and ) is actually part of the here document marker
- EOFN
- )
- echo $x
- }
- function comsub_heredoc_space { x=$(
- x=$(cat <<EOFN\
- note the space between EOFN and ) is actually part of the here document marker
- EOFN ); echo $x
- ); }
- function comsub_heredoc_space {
- x=$(x=$(cat <<EOFN\
- note the space between EOFN and ) is actually part of the here document marker
- EOFN
- ) ; echo $x )
- }
- function reread_heredoc_space { x=$((
- x=$(cat <<EOFN\
- note the space between EOFN and ) is actually part of the here document marker
- EOFN ); echo $x
- )|tr u x); }
- function reread_heredoc_space {
- x=$(( x=$(cat <<EOFN\
- note the space between EOFN and ) is actually part of the here document marker
- EOFN
- ) ; echo $x ) | tr u x )
- }
- inline_patch_motd() {
- x=$(sysctl -n kern.version | sed 1q)
- [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
- ed -s /etc/motd 2>&1 <<-EOF
- 1,/^\$/d
- 0a
- $x
-
- .
- wq
- EOF)" = @(?) ]] && rm -f /etc/motd
- if [[ ! -s /etc/motd ]]; then
- install -c -o root -g wheel -m 664 /dev/null /etc/motd
- print -- "$x\n" >/etc/motd
- fi
- }
- inline_patch_motd() {
- x=$(sysctl -n kern.version | sed 1q )
- [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd )" != $x ]] && ed -s /etc/motd 2>&1 <<-EOF
- 1,/^\$/d
- 0a
- $x
-
- .
- wq
- EOF
- )" = @(?) ]] && rm -f /etc/motd
- if [[ ! -s /etc/motd ]]
- then
- install -c -o root -g wheel -m 664 /dev/null /etc/motd
- print -- "$x\n" >/etc/motd
- fi
- }
- function comsub_patch_motd { x=$(
- x=$(sysctl -n kern.version | sed 1q)
- [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
- ed -s /etc/motd 2>&1 <<-EOF
- 1,/^\$/d
- 0a
- $x
-
- .
- wq
- EOF)" = @(?) ]] && rm -f /etc/motd
- if [[ ! -s /etc/motd ]]; then
- install -c -o root -g wheel -m 664 /dev/null /etc/motd
- print -- "$x\n" >/etc/motd
- fi
- ); }
- function comsub_patch_motd {
- x=$(x=$(sysctl -n kern.version | sed 1q ) ; [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd )" != $x ]] && ed -s /etc/motd 2>&1 <<-EOF
- 1,/^\$/d
- 0a
- $x
-
- .
- wq
- EOF
- )" = @(?) ]] && rm -f /etc/motd ; if [[ ! -s /etc/motd ]] ; then install -c -o root -g wheel -m 664 /dev/null /etc/motd ; print -- "$x\n" >/etc/motd ; fi )
- }
- function reread_patch_motd { x=$((
- x=$(sysctl -n kern.version | sed 1q)
- [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
- ed -s /etc/motd 2>&1 <<-EOF
- 1,/^\$/d
- 0a
- $x
-
- .
- wq
- EOF)" = @(?) ]] && rm -f /etc/motd
- if [[ ! -s /etc/motd ]]; then
- install -c -o root -g wheel -m 664 /dev/null /etc/motd
- print -- "$x\n" >/etc/motd
- fi
- )|tr u x); }
- function reread_patch_motd {
- x=$(( x=$(sysctl -n kern.version | sed 1q ) ; [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd )" != $x ]] && ed -s /etc/motd 2>&1 <<-EOF
- 1,/^\$/d
- 0a
- $x
-
- .
- wq
- EOF
- )" = @(?) ]] && rm -f /etc/motd ; if [[ ! -s /etc/motd ]] ; then install -c -o root -g wheel -m 664 /dev/null /etc/motd ; print -- "$x\n" >/etc/motd ; fi ) | tr u x )
- }
- inline_wdarrassign() {
- case x in
- x) a+=b; c+=(d e)
- esac
- }
- inline_wdarrassign() {
- case x in
- (x)
- a+=b
- set -A c+ -- d e
- ;;
- esac
- }
- function comsub_wdarrassign { x=$(
- case x in
- x) a+=b; c+=(d e)
- esac
- ); }
- function comsub_wdarrassign {
- x=$(case x in (x) a+=b ; set -A c+ -- d e ;; esac )
- }
- function reread_wdarrassign { x=$((
- case x in
- x) a+=b; c+=(d e)
- esac
- )|tr u x); }
- function reread_wdarrassign {
- x=$(( case x in (x) a+=b ; set -A c+ -- d e ;; esac ) | tr u x )
- }
----
-name: comsub-torture-io
-description:
- Check the tree dump functions work correctly with I/O redirection
-stdin:
- if [[ -z $__progname ]]; then echo >&2 call me with __progname; exit 1; fi
- while IFS= read -r line; do
- if [[ $line = '#1' ]]; then
- lastf=0
- continue
- elif [[ $line = EOFN* ]]; then
- fbody=$fbody$'\n'$line
- continue
- elif [[ $line != '#'* ]]; then
- fbody=$fbody$'\n\t'$line
- continue
- fi
- if (( lastf )); then
- x="inline_${nextf}() {"$fbody$'\n}\n'
- print -nr -- "$x"
- print -r -- "${x}typeset -f inline_$nextf" | "$__progname"
- x="function comsub_$nextf { x=\$("$fbody$'\n); }\n'
- print -nr -- "$x"
- print -r -- "${x}typeset -f comsub_$nextf" | "$__progname"
- x="function reread_$nextf { x=\$(("$fbody$'\n)|tr u x); }\n'
- print -nr -- "$x"
- print -r -- "${x}typeset -f reread_$nextf" | "$__progname"
- fi
- lastf=1
- fbody=
- nextf=${line#?}
- done <<'EOD'
- #1
- #TCOM
- vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4" >&3
- #TPAREN_TPIPE_TLIST
- (echo $foo | tr -dc 0-9 >&3; echo >&3) >&3
- #TAND_TOR
- cmd >&3 && >&3 echo ja || echo >&3 nein
- #TSELECT
- select file in *; do echo "<$file>" ; break >&3 ; done >&3
- #TFOR_TTIME
- for i in {1,2,3} ; do time >&3 echo $i ; done >&3
- #TCASE
- case $foo in 1) echo eins >&3;& 2) echo zwei >&3 ;| *) echo kann net bis drei zählen >&3;; esac >&3
- #TIF_TBANG_TDBRACKET_TELIF
- if ! [[ 1 = 1 ]] >&3 ; then echo eins; elif [[ 1 = 2 ]] >&3; then echo zwei ;else echo drei; fi >&3
- #TWHILE
- i=1; while (( i < 10 )) >&3; do echo $i; let ++i; done >&3
- #TUNTIL
- i=10; until (( !--i )) >&3 ; do echo $i; done >&3
- #TCOPROC
- cat * >&3 |& >&3 ls
- #TFUNCT_TBRACE_TASYNC
- function korn { echo eins; echo >&3 zwei ; }
- bourne () { logger * >&3 & }
- #COMSUB_EXPRSUB
- echo $(true >&3) $((1+ 2))
- #0
- EOD
-expected-stdout:
- inline_TCOM() {
- vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4" >&3
- }
- inline_TCOM() {
- vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4" >&3
- }
- function comsub_TCOM { x=$(
- vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4" >&3
- ); }
- function comsub_TCOM {
- x=$(vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4" >&3 )
- }
- function reread_TCOM { x=$((
- vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4" >&3
- )|tr u x); }
- function reread_TCOM {
- x=$(( vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4" >&3 ) | tr u x )
- }
- inline_TPAREN_TPIPE_TLIST() {
- (echo $foo | tr -dc 0-9 >&3; echo >&3) >&3
- }
- inline_TPAREN_TPIPE_TLIST() {
- ( echo $foo | tr -dc 0-9 >&3
- echo >&3 ) >&3
- }
- function comsub_TPAREN_TPIPE_TLIST { x=$(
- (echo $foo | tr -dc 0-9 >&3; echo >&3) >&3
- ); }
- function comsub_TPAREN_TPIPE_TLIST {
- x=$(( echo $foo | tr -dc 0-9 >&3 ; echo >&3 ) >&3 )
- }
- function reread_TPAREN_TPIPE_TLIST { x=$((
- (echo $foo | tr -dc 0-9 >&3; echo >&3) >&3
- )|tr u x); }
- function reread_TPAREN_TPIPE_TLIST {
- x=$(( ( echo $foo | tr -dc 0-9 >&3 ; echo >&3 ) >&3 ) | tr u x )
- }
- inline_TAND_TOR() {
- cmd >&3 && >&3 echo ja || echo >&3 nein
- }
- inline_TAND_TOR() {
- cmd >&3 && echo ja >&3 || echo nein >&3
- }
- function comsub_TAND_TOR { x=$(
- cmd >&3 && >&3 echo ja || echo >&3 nein
- ); }
- function comsub_TAND_TOR {
- x=$(cmd >&3 && echo ja >&3 || echo nein >&3 )
- }
- function reread_TAND_TOR { x=$((
- cmd >&3 && >&3 echo ja || echo >&3 nein
- )|tr u x); }
- function reread_TAND_TOR {
- x=$(( cmd >&3 && echo ja >&3 || echo nein >&3 ) | tr u x )
- }
- inline_TSELECT() {
- select file in *; do echo "<$file>" ; break >&3 ; done >&3
- }
- inline_TSELECT() {
- select file in *
- do
- echo "<$file>"
- break >&3
- done >&3
- }
- function comsub_TSELECT { x=$(
- select file in *; do echo "<$file>" ; break >&3 ; done >&3
- ); }
- function comsub_TSELECT {
- x=$(select file in * ; do echo "<$file>" ; break >&3 ; done >&3 )
- }
- function reread_TSELECT { x=$((
- select file in *; do echo "<$file>" ; break >&3 ; done >&3
- )|tr u x); }
- function reread_TSELECT {
- x=$(( select file in * ; do echo "<$file>" ; break >&3 ; done >&3 ) | tr u x )
- }
- inline_TFOR_TTIME() {
- for i in {1,2,3} ; do time >&3 echo $i ; done >&3
- }
- inline_TFOR_TTIME() {
- for i in {1,2,3}
- do
- time echo $i >&3
- done >&3
- }
- function comsub_TFOR_TTIME { x=$(
- for i in {1,2,3} ; do time >&3 echo $i ; done >&3
- ); }
- function comsub_TFOR_TTIME {
- x=$(for i in {1,2,3} ; do time echo $i >&3 ; done >&3 )
- }
- function reread_TFOR_TTIME { x=$((
- for i in {1,2,3} ; do time >&3 echo $i ; done >&3
- )|tr u x); }
- function reread_TFOR_TTIME {
- x=$(( for i in {1,2,3} ; do time echo $i >&3 ; done >&3 ) | tr u x )
- }
- inline_TCASE() {
- case $foo in 1) echo eins >&3;& 2) echo zwei >&3 ;| *) echo kann net bis drei zählen >&3;; esac >&3
- }
- inline_TCASE() {
- case $foo in
- (1)
- echo eins >&3
- ;&
- (2)
- echo zwei >&3
- ;|
- (*)
- echo kann net bis drei zählen >&3
- ;;
- esac >&3
- }
- function comsub_TCASE { x=$(
- case $foo in 1) echo eins >&3;& 2) echo zwei >&3 ;| *) echo kann net bis drei zählen >&3;; esac >&3
- ); }
- function comsub_TCASE {
- x=$(case $foo in (1) echo eins >&3 ;& (2) echo zwei >&3 ;| (*) echo kann net bis drei zählen >&3 ;; esac >&3 )
- }
- function reread_TCASE { x=$((
- case $foo in 1) echo eins >&3;& 2) echo zwei >&3 ;| *) echo kann net bis drei zählen >&3;; esac >&3
- )|tr u x); }
- function reread_TCASE {
- x=$(( case $foo in (1) echo eins >&3 ;& (2) echo zwei >&3 ;| (*) echo kann net bis drei zählen >&3 ;; esac >&3 ) | tr u x )
- }
- inline_TIF_TBANG_TDBRACKET_TELIF() {
- if ! [[ 1 = 1 ]] >&3 ; then echo eins; elif [[ 1 = 2 ]] >&3; then echo zwei ;else echo drei; fi >&3
- }
- inline_TIF_TBANG_TDBRACKET_TELIF() {
- if ! [[ 1 = 1 ]] >&3
- then
- echo eins
- elif [[ 1 = 2 ]] >&3
- then
- echo zwei
- else
- echo drei
- fi >&3
- }
- function comsub_TIF_TBANG_TDBRACKET_TELIF { x=$(
- if ! [[ 1 = 1 ]] >&3 ; then echo eins; elif [[ 1 = 2 ]] >&3; then echo zwei ;else echo drei; fi >&3
- ); }
- function comsub_TIF_TBANG_TDBRACKET_TELIF {
- x=$(if ! [[ 1 = 1 ]] >&3 ; then echo eins ; elif [[ 1 = 2 ]] >&3 ; then echo zwei ; else echo drei ; fi >&3 )
- }
- function reread_TIF_TBANG_TDBRACKET_TELIF { x=$((
- if ! [[ 1 = 1 ]] >&3 ; then echo eins; elif [[ 1 = 2 ]] >&3; then echo zwei ;else echo drei; fi >&3
- )|tr u x); }
- function reread_TIF_TBANG_TDBRACKET_TELIF {
- x=$(( if ! [[ 1 = 1 ]] >&3 ; then echo eins ; elif [[ 1 = 2 ]] >&3 ; then echo zwei ; else echo drei ; fi >&3 ) | tr u x )
- }
- inline_TWHILE() {
- i=1; while (( i < 10 )) >&3; do echo $i; let ++i; done >&3
- }
- inline_TWHILE() {
- i=1
- while let] " i < 10 " >&3
- do
- echo $i
- let ++i
- done >&3
- }
- function comsub_TWHILE { x=$(
- i=1; while (( i < 10 )) >&3; do echo $i; let ++i; done >&3
- ); }
- function comsub_TWHILE {
- x=$(i=1 ; while let] " i < 10 " >&3 ; do echo $i ; let ++i ; done >&3 )
- }
- function reread_TWHILE { x=$((
- i=1; while (( i < 10 )) >&3; do echo $i; let ++i; done >&3
- )|tr u x); }
- function reread_TWHILE {
- x=$(( i=1 ; while let] " i < 10 " >&3 ; do echo $i ; let ++i ; done >&3 ) | tr u x )
- }
- inline_TUNTIL() {
- i=10; until (( !--i )) >&3 ; do echo $i; done >&3
- }
- inline_TUNTIL() {
- i=10
- until let] " !--i " >&3
- do
- echo $i
- done >&3
- }
- function comsub_TUNTIL { x=$(
- i=10; until (( !--i )) >&3 ; do echo $i; done >&3
- ); }
- function comsub_TUNTIL {
- x=$(i=10 ; until let] " !--i " >&3 ; do echo $i ; done >&3 )
- }
- function reread_TUNTIL { x=$((
- i=10; until (( !--i )) >&3 ; do echo $i; done >&3
- )|tr u x); }
- function reread_TUNTIL {
- x=$(( i=10 ; until let] " !--i " >&3 ; do echo $i ; done >&3 ) | tr u x )
- }
- inline_TCOPROC() {
- cat * >&3 |& >&3 ls
- }
- inline_TCOPROC() {
- cat * >&3 |&
- ls >&3
- }
- function comsub_TCOPROC { x=$(
- cat * >&3 |& >&3 ls
- ); }
- function comsub_TCOPROC {
- x=$(cat * >&3 |& ls >&3 )
- }
- function reread_TCOPROC { x=$((
- cat * >&3 |& >&3 ls
- )|tr u x); }
- function reread_TCOPROC {
- x=$(( cat * >&3 |& ls >&3 ) | tr u x )
- }
- inline_TFUNCT_TBRACE_TASYNC() {
- function korn { echo eins; echo >&3 zwei ; }
- bourne () { logger * >&3 & }
- }
- inline_TFUNCT_TBRACE_TASYNC() {
- function korn {
- echo eins
- echo zwei >&3
- }
- bourne() {
- logger * >&3 &
- }
- }
- function comsub_TFUNCT_TBRACE_TASYNC { x=$(
- function korn { echo eins; echo >&3 zwei ; }
- bourne () { logger * >&3 & }
- ); }
- function comsub_TFUNCT_TBRACE_TASYNC {
- x=$(function korn { echo eins ; echo zwei >&3 ; } ; bourne() { logger * >&3 & } )
- }
- function reread_TFUNCT_TBRACE_TASYNC { x=$((
- function korn { echo eins; echo >&3 zwei ; }
- bourne () { logger * >&3 & }
- )|tr u x); }
- function reread_TFUNCT_TBRACE_TASYNC {
- x=$(( function korn { echo eins ; echo zwei >&3 ; } ; bourne() { logger * >&3 & } ) | tr u x )
- }
- inline_COMSUB_EXPRSUB() {
- echo $(true >&3) $((1+ 2))
- }
- inline_COMSUB_EXPRSUB() {
- echo $(true >&3 ) $((1+ 2))
- }
- function comsub_COMSUB_EXPRSUB { x=$(
- echo $(true >&3) $((1+ 2))
- ); }
- function comsub_COMSUB_EXPRSUB {
- x=$(echo $(true >&3 ) $((1+ 2)) )
- }
- function reread_COMSUB_EXPRSUB { x=$((
- echo $(true >&3) $((1+ 2))
- )|tr u x); }
- function reread_COMSUB_EXPRSUB {
- x=$(( echo $(true >&3 ) $((1+ 2)) ) | tr u x )
- }
----
-name: funsub-1
-description:
- Check that non-subenvironment command substitution works
-stdin:
- set -e
- foo=bar
- echo "ob $foo ."
- echo "${
- echo "ib $foo :"
- foo=baz
- echo "ia $foo :"
- false
- }" .
- echo "oa $foo ."
-expected-stdout:
- ob bar .
- ib bar :
- ia baz : .
- oa baz .
----
-name: funsub-2
-description:
- You can now reliably use local and return in funsubs
- (not exit though)
-stdin:
- x=q; e=1; x=${ echo a; e=2; echo x$e;}; echo 1:y$x,$e,$?.
- x=q; e=1; x=${ echo a; typeset e=2; echo x$e;}; echo 2:y$x,$e,$?.
- x=q; e=1; x=${ echo a; typeset e=2; return 3; echo x$e;}; echo 3:y$x,$e,$?.
-expected-stdout:
- 1:ya x2,2,0.
- 2:ya x2,1,0.
- 3:ya,1,3.
----
-name: valsub-1
-description:
- Check that "value substitutions" work as advertised
-stdin:
- x=1
- y=2
- z=3
- REPLY=4
- echo "before: x<$x> y<$y> z<$z> R<$REPLY>"
- x=${|
- local y
- echo "begin: x<$x> y<$y> z<$z> R<$REPLY>"
- x=5
- y=6
- z=7
- REPLY=8
- echo "end: x<$x> y<$y> z<$z> R<$REPLY>"
- }
- echo "after: x<$x> y<$y> z<$z> R<$REPLY>"
- # ensure trailing newlines are kept
- t=${|REPLY=$'foo\n\n';}
- typeset -p t
- echo -n this used to segfault
- echo ${|true;}$(true).
-expected-stdout:
- before: x<1> y<2> z<3> R<4>
- begin: x<1> y<> z<3> R<>
- end: x<5> y<6> z<7> R<8>
- after: x<8> y<2> z<7> R<4>
- typeset t=$'foo\n\n'
- this used to segfault.
----
-name: test-stnze-1
-description:
- Check that the short form [ $x ] works
-stdin:
- i=0
- [ -n $x ]
- rv=$?; echo $((++i)) $rv
- [ $x ]
- rv=$?; echo $((++i)) $rv
- [ -n "$x" ]
- rv=$?; echo $((++i)) $rv
- [ "$x" ]
- rv=$?; echo $((++i)) $rv
- x=0
- [ -n $x ]
- rv=$?; echo $((++i)) $rv
- [ $x ]
- rv=$?; echo $((++i)) $rv
- [ -n "$x" ]
- rv=$?; echo $((++i)) $rv
- [ "$x" ]
- rv=$?; echo $((++i)) $rv
- x='1 -a 1 = 2'
- [ -n $x ]
- rv=$?; echo $((++i)) $rv
- [ $x ]
- rv=$?; echo $((++i)) $rv
- [ -n "$x" ]
- rv=$?; echo $((++i)) $rv
- [ "$x" ]
- rv=$?; echo $((++i)) $rv
-expected-stdout:
- 1 0
- 2 1
- 3 1
- 4 1
- 5 0
- 6 0
- 7 0
- 8 0
- 9 1
- 10 1
- 11 0
- 12 0
----
-name: test-stnze-2
-description:
- Check that the short form [[ $x ]] works (ksh93 extension)
-stdin:
- i=0
- [[ -n $x ]]
- rv=$?; echo $((++i)) $rv
- [[ $x ]]
- rv=$?; echo $((++i)) $rv
- [[ -n "$x" ]]
- rv=$?; echo $((++i)) $rv
- [[ "$x" ]]
- rv=$?; echo $((++i)) $rv
- x=0
- [[ -n $x ]]
- rv=$?; echo $((++i)) $rv
- [[ $x ]]
- rv=$?; echo $((++i)) $rv
- [[ -n "$x" ]]
- rv=$?; echo $((++i)) $rv
- [[ "$x" ]]
- rv=$?; echo $((++i)) $rv
- x='1 -a 1 = 2'
- [[ -n $x ]]
- rv=$?; echo $((++i)) $rv
- [[ $x ]]
- rv=$?; echo $((++i)) $rv
- [[ -n "$x" ]]
- rv=$?; echo $((++i)) $rv
- [[ "$x" ]]
- rv=$?; echo $((++i)) $rv
-expected-stdout:
- 1 1
- 2 1
- 3 1
- 4 1
- 5 0
- 6 0
- 7 0
- 8 0
- 9 0
- 10 0
- 11 0
- 12 0
----
-name: event-subst-3
-description:
- Check that '!' substitution in noninteractive mode is ignored
-file-setup: file 755 "falsetto"
- #! /bin/sh
- echo molto bene
- exit 42
-file-setup: file 755 "!false"
- #! /bin/sh
- echo si
-stdin:
- export PATH=.:$PATH
- falsetto
- echo yeap
- !false
- echo meow
- ! false
- echo = $?
- if
- ! false; then echo foo; else echo bar; fi
-expected-stdout:
- molto bene
- yeap
- si
- meow
- = 0
- foo
----
-name: event-subst-0
-description:
- Check that '!' substitution in interactive mode is ignored
-need-ctty: yes
-arguments: !-i!
-file-setup: file 755 "falsetto"
- #! /bin/sh
- echo molto bene
- exit 42
-file-setup: file 755 "!false"
- #! /bin/sh
- echo si
-stdin:
- export PATH=.:$PATH
- falsetto
- echo yeap
- !false
- echo meow
- ! false
- echo = $?
- if
- ! false; then echo foo; else echo bar; fi
-expected-stdout:
- molto bene
- yeap
- si
- meow
- = 0
- foo
-expected-stderr-pattern:
- /.*/
----
-name: nounset-1
-description:
- Check that "set -u" matches (future) SUSv4 requirement
-stdin:
- (set -u
- try() {
- local v
- eval v=\$$1
- if [[ -n $v ]]; then
- echo $1=nz
- else
- echo $1=zf
- fi
- }
- x=y
- (echo $x)
- echo =1
- (echo $y)
- echo =2
- (try x)
- echo =3
- (try y)
- echo =4
- (try 0)
- echo =5
- (try 2)
- echo =6
- (try)
- echo =7
- (echo at=$@)
- echo =8
- (echo asterisk=$*)
- echo =9
- (echo $?)
- echo =10
- (echo $!)
- echo =11
- (echo $-)
- echo =12
- #(echo $_)
- #echo =13
- (echo $#)
- echo =14
- (mypid=$$; try mypid)
- echo =15
- ) 2>&1 | sed -e 's/^[^]]*]//' -e 's/^[^:]*: *//'
-expected-stdout:
- y
- =1
- y: parameter not set
- =2
- x=nz
- =3
- y: parameter not set
- =4
- 0=nz
- =5
- 2: parameter not set
- =6
- 1: parameter not set
- =7
- at=
- =8
- asterisk=
- =9
- 0
- =10
- !: parameter not set
- =11
- ush
- =12
- 0
- =14
- mypid=nz
- =15
----
-name: nameref-1
-description:
- Testsuite for nameref (bound variables)
-stdin:
- bar=global
- typeset -n ir2=bar
- typeset -n ind=ir2
- echo !ind: ${!ind}
- echo ind: $ind
- echo !ir2: ${!ir2}
- echo ir2: $ir2
- typeset +n ind
- echo !ind: ${!ind}
- echo ind: $ind
- typeset -n ir2=ind
- echo !ir2: ${!ir2}
- echo ir2: $ir2
- set|grep ^ir2|sed 's/^/s1: /'
- typeset|grep ' ir2'|sed -e 's/^/s2: /' -e 's/nameref/typeset -n/'
- set -A blub -- e1 e2 e3
- typeset -n ind=blub
- typeset -n ir2=blub[2]
- echo !ind[1]: ${!ind[1]}
- echo !ir2: $!ir2
- echo ind[1]: ${ind[1]}
- echo ir2: $ir2
-expected-stdout:
- !ind: bar
- ind: global
- !ir2: bar
- ir2: global
- !ind: ind
- ind: ir2
- !ir2: ind
- ir2: ir2
- s1: ir2=ind
- s2: typeset -n ir2
- !ind[1]: 1
- !ir2: ir2
- ind[1]: e2
- ir2: e3
----
-name: nameref-2da
-description:
- Testsuite for nameref (bound variables)
- Functions, argument given directly, after local
-stdin:
- function foo {
- typeset bar=lokal baz=auch
- typeset -n v=bar
- echo entering
- echo !v: ${!v}
- echo !bar: ${!bar}
- echo !baz: ${!baz}
- echo bar: $bar
- echo v: $v
- v=123
- echo bar: $bar
- echo v: $v
- echo exiting
- }
- bar=global
- echo bar: $bar
- foo bar
- echo bar: $bar
-expected-stdout:
- bar: global
- entering
- !v: bar
- !bar: bar
- !baz: baz
- bar: lokal
- v: lokal
- bar: 123
- v: 123
- exiting
- bar: global
----
-name: nameref-3
-description:
- Advanced testsuite for bound variables (ksh93 fails this)
-stdin:
- typeset -n foo=bar[i]
- set -A bar -- b c a
- for i in 0 1 2 3; do
- print $i $foo .
- done
-expected-stdout:
- 0 b .
- 1 c .
- 2 a .
- 3 .
----
-name: nameref-4
-description:
- Ensure we don't run in an infinite loop
-time-limit: 3
-stdin:
- baz() {
- typeset -n foo=fnord fnord=foo
- foo[0]=bar
- }
- set -A foo bad
- echo sind $foo .
- baz
- echo blah $foo .
-expected-stdout:
- sind bad .
- blah bad .
-expected-stderr-pattern:
- /fnord: expression recurses on parameter/
----
-name: better-parens-1a
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- if ( (echo fubar)|tr u x); then
- echo ja
- else
- echo nein
- fi
-expected-stdout:
- fxbar
- ja
----
-name: better-parens-1b
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- echo $( (echo fubar)|tr u x) $?
-expected-stdout:
- fxbar 0
----
-name: better-parens-1c
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- x=$( (echo fubar)|tr u x); echo $x $?
-expected-stdout:
- fxbar 0
----
-name: better-parens-2a
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- if ((echo fubar)|tr u x); then
- echo ja
- else
- echo nein
- fi
-expected-stdout:
- fxbar
- ja
----
-name: better-parens-2b
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- echo $((echo fubar)|tr u x) $?
-expected-stdout:
- fxbar 0
----
-name: better-parens-2c
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- x=$((echo fubar)|tr u x); echo $x $?
-expected-stdout:
- fxbar 0
----
-name: better-parens-3a
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- if ( (echo fubar)|(tr u x)); then
- echo ja
- else
- echo nein
- fi
-expected-stdout:
- fxbar
- ja
----
-name: better-parens-3b
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- echo $( (echo fubar)|(tr u x)) $?
-expected-stdout:
- fxbar 0
----
-name: better-parens-3c
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- x=$( (echo fubar)|(tr u x)); echo $x $?
-expected-stdout:
- fxbar 0
----
-name: better-parens-4a
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- if ((echo fubar)|(tr u x)); then
- echo ja
- else
- echo nein
- fi
-expected-stdout:
- fxbar
- ja
----
-name: better-parens-4b
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- echo $((echo fubar)|(tr u x)) $?
-expected-stdout:
- fxbar 0
----
-name: better-parens-4c
-description:
- Check support for ((…)) and $((…)) vs (…) and $(…)
-stdin:
- x=$((echo fubar)|(tr u x)); echo $x $?
-expected-stdout:
- fxbar 0
----
-name: echo-test-1
-description:
- Test what the echo builtin does (mksh)
-stdin:
- echo -n 'foo\x40bar'
- echo -e '\tbaz'
-expected-stdout:
- foo at bar baz
----
-name: echo-test-2
-description:
- Test what the echo builtin does (POSIX)
- Note: this follows Debian Policy 10.4 which mandates
- that -n shall be treated as an option, not XSI which
- mandates it shall be treated as string but escapes
- shall be expanded.
-stdin:
- test -n "$POSH_VERSION" || set -o posix
- echo -n 'foo\x40bar'
- echo -e '\tbaz'
-expected-stdout:
- foo\x40bar-e \tbaz
----
-name: echo-test-3-mnbsd
-description:
- Test what the echo builtin does, and test a compatibility flag.
-category: mnbsdash
-stdin:
- "$__progname" -c 'echo -n 1=\\x40$1; echo -e \\x2E' -- foo bar
- "$__progname" -o posix -c 'echo -n 2=\\x40$1; echo -e \\x2E' -- foo bar
- "$__progname" -o sh -c 'echo -n 3=\\x40$1; echo -e \\x2E' -- foo bar
-expected-stdout:
- 1=@foo.
- 2=\x40foo-e \x2E
- 3=\x40bar.
----
-name: echo-test-3-normal
-description:
- Test what the echo builtin does, and test a compatibility flag.
-category: !mnbsdash
-stdin:
- "$__progname" -c 'echo -n 1=\\x40$1; echo -e \\x2E' -- foo bar
- "$__progname" -o posix -c 'echo -n 2=\\x40$1; echo -e \\x2E' -- foo bar
- "$__progname" -o sh -c 'echo -n 3=\\x40$1; echo -e \\x2E' -- foo bar
-expected-stdout:
- 1=@foo.
- 2=\x40foo-e \x2E
- 3=\x40foo-e \x2E
----
-name: utilities-getopts-1
-description:
- getopts sets OPTIND correctly for unparsed option
-stdin:
- set -- -a -a -x
- while getopts :a optc; do
- echo "OPTARG=$OPTARG, OPTIND=$OPTIND, optc=$optc."
- done
- echo done
-expected-stdout:
- OPTARG=, OPTIND=2, optc=a.
- OPTARG=, OPTIND=3, optc=a.
- OPTARG=x, OPTIND=4, optc=?.
- done
----
-name: utilities-getopts-2
-description:
- Check OPTARG
-stdin:
- set -- -a Mary -x
- while getopts a: optc; do
- echo "OPTARG=$OPTARG, OPTIND=$OPTIND, optc=$optc."
- done
- echo done
-expected-stdout:
- OPTARG=Mary, OPTIND=3, optc=a.
- OPTARG=, OPTIND=4, optc=?.
- done
-expected-stderr-pattern: /.*-x.*option/
----
-name: wcswidth-1
-description:
- Check the new wcswidth feature
-stdin:
- s=何
- set +U
- print octets: ${#s} .
- print 8-bit width: ${%s} .
- set -U
- print characters: ${#s} .
- print columns: ${%s} .
- s=�
- set +U
- print octets: ${#s} .
- print 8-bit width: ${%s} .
- set -U
- print characters: ${#s} .
- print columns: ${%s} .
-expected-stdout:
- octets: 3 .
- 8-bit width: -1 .
- characters: 1 .
- columns: 2 .
- octets: 3 .
- 8-bit width: 3 .
- characters: 1 .
- columns: 1 .
----
-name: wcswidth-2
-description:
- Check some corner cases
-stdin:
- print % $% .
- set -U
- x='a b'
- print c ${%x} .
- set +U
- x='a b'
- print d ${%x} .
-expected-stdout:
- % $% .
- c -1 .
- d -1 .
----
-name: wcswidth-3
-description:
- Check some corner cases
-stdin:
- print ${%} .
-expected-stderr-pattern:
- /bad substitution/
-expected-exit: 1
----
-name: wcswidth-4a
-description:
- Check some corner cases
-stdin:
- print ${%*} .
-expected-stderr-pattern:
- /bad substitution/
-expected-exit: 1
----
-name: wcswidth-4b
-description:
- Check some corner cases
-stdin:
- print ${%@} .
-expected-stderr-pattern:
- /bad substitution/
-expected-exit: 1
----
-name: wcswidth-4c
-description:
- Check some corner cases
-stdin:
- :
- print ${%?} .
-expected-stdout:
- 1 .
----
-name: realpath-1
-description:
- Check proper return values for realpath
-category: os:mirbsd
-stdin:
- wd=$(realpath .)
- mkdir dir
- :>file
- :>dir/file
- ln -s dir lndir
- ln -s file lnfile
- ln -s nix lnnix
- ln -s . lnself
- i=0
- chk() {
- typeset x y
- x=$(realpath "$wd/$1" 2>&1); y=$?
- print $((++i)) "?$1" =${x##*$wd/} !$y
- }
- chk dir
- chk dir/
- chk dir/file
- chk dir/nix
- chk file
- chk file/
- chk file/file
- chk file/nix
- chk nix
- chk nix/
- chk nix/file
- chk nix/nix
- chk lndir
- chk lndir/
- chk lndir/file
- chk lndir/nix
- chk lnfile
- chk lnfile/
- chk lnfile/file
- chk lnfile/nix
- chk lnnix
- chk lnnix/
- chk lnnix/file
- chk lnnix/nix
- chk lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself
- rm lnself
-expected-stdout:
- 1 ?dir =dir !0
- 2 ?dir/ =dir !0
- 3 ?dir/file =dir/file !0
- 4 ?dir/nix =dir/nix !0
- 5 ?file =file !0
- 6 ?file/ =file/: Not a directory !20
- 7 ?file/file =file/file: Not a directory !20
- 8 ?file/nix =file/nix: Not a directory !20
- 9 ?nix =nix !0
- 10 ?nix/ =nix !0
- 11 ?nix/file =nix/file: No such file or directory !2
- 12 ?nix/nix =nix/nix: No such file or directory !2
- 13 ?lndir =dir !0
- 14 ?lndir/ =dir !0
- 15 ?lndir/file =dir/file !0
- 16 ?lndir/nix =dir/nix !0
- 17 ?lnfile =file !0
- 18 ?lnfile/ =lnfile/: Not a directory !20
- 19 ?lnfile/file =lnfile/file: Not a directory !20
- 20 ?lnfile/nix =lnfile/nix: Not a directory !20
- 21 ?lnnix =nix !0
- 22 ?lnnix/ =nix !0
- 23 ?lnnix/file =lnnix/file: No such file or directory !2
- 24 ?lnnix/nix =lnnix/nix: No such file or directory !2
- 25 ?lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself =lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself: Too many levels of symbolic links !62
----
-name: realpath-2
-description:
- Ensure that exactly two leading slashes are not collapsed
- POSIX guarantees this exception, e.g. for UNC paths on Cygwin
-category: os:mirbsd
-stdin:
- ln -s /bin t1
- ln -s //bin t2
- ln -s ///bin t3
- realpath /bin
- realpath //bin
- realpath ///bin
- realpath /usr/bin
- realpath /usr//bin
- realpath /usr///bin
- realpath t1
- realpath t2
- realpath t3
- rm -f t1 t2 t3
- cd //usr/bin
- pwd
- cd ../lib
- pwd
- realpath //usr/include/../bin
-expected-stdout:
- /bin
- //bin
- /bin
- /usr/bin
- /usr/bin
- /usr/bin
- /bin
- //bin
- /bin
- //usr/bin
- //usr/lib
- //usr/bin
----
-name: crash-1
-description:
- Crashed during March 2011, fixed on vernal equinōx ☺
-category: os:mirbsd,os:openbsd
-stdin:
- export MALLOC_OPTIONS=FGJPRSX
- "$__progname" -c 'x=$(tr z r <<<baz); echo $x'
-expected-stdout:
- bar
----
-name: debian-117-1
-description:
- Check test - bug#465250
-stdin:
- test \( ! -e \) ; echo $?
-expected-stdout:
- 1
----
-name: debian-117-2
-description:
- Check test - bug#465250
-stdin:
- test \( -e \) ; echo $?
-expected-stdout:
- 0
----
-name: debian-117-3
-description:
- Check test - bug#465250
-stdin:
- test ! -e ; echo $?
-expected-stdout:
- 1
----
-name: debian-117-4
-description:
- Check test - bug#465250
-stdin:
- test -e ; echo $?
-expected-stdout:
- 0
----
-name: case-zsh
-description:
- Check that zsh case variants work
-stdin:
- case 'b' in
- a) echo a ;;
- b) echo b ;;
- c) echo c ;;
- *) echo x ;;
- esac
- echo =
- case 'b' in
- a) echo a ;&
- b) echo b ;&
- c) echo c ;&
- *) echo x ;&
- esac
- echo =
- case 'b' in
- a) echo a ;|
- b) echo b ;|
- c) echo c ;|
- *) echo x ;|
- esac
-expected-stdout:
- b
- =
- b
- c
- x
- =
- b
- x
----
-name: case-braces
-description:
- Check that case end tokens are not mixed up (Debian #220272)
-stdin:
- i=0
- for value in 'x' '}' 'esac'; do
- print -n "$((++i))($value)bourne "
- case $value in
- }) echo brace ;;
- *) echo no ;;
- esac
- print -n "$((++i))($value)korn "
- case $value {
- esac) echo esac ;;
- *) echo no ;;
- }
- done
-expected-stdout:
- 1(x)bourne no
- 2(x)korn no
- 3(})bourne brace
- 4(})korn no
- 5(esac)bourne no
- 6(esac)korn esac
----
-name: command-shift
-description:
- Check that 'command shift' works
-stdin:
- function snc {
- echo "before 0='$0' 1='$1' 2='$2'"
- shift
- echo "after 0='$0' 1='$1' 2='$2'"
- }
- function swc {
- echo "before 0='$0' 1='$1' 2='$2'"
- command shift
- echo "after 0='$0' 1='$1' 2='$2'"
- }
- echo = without command
- snc 一 二
- echo = with command
- swc 一 二
- echo = done
-expected-stdout:
- = without command
- before 0='snc' 1='一' 2='二'
- after 0='snc' 1='二' 2=''
- = with command
- before 0='swc' 1='一' 2='二'
- after 0='swc' 1='二' 2=''
- = done
----
-name: duffs-device
-description:
- Check that the compiler did not optimise-break them
- (lex.c has got a similar one in SHEREDELIM)
-stdin:
- set +U
- s=
- typeset -i1 i=0
- while (( ++i < 256 )); do
- s+=${i#1#}
- done
- s+=$'\xC2\xA0\xE2\x82\xAC\xEF\xBF\xBD\xEF\xBF\xBE\xEF\xBF\xBF\xF0\x90\x80\x80.'
- typeset -p s
-expected-stdout:
- typeset s=$'\001\002\003\004\005\006\a\b\t\n\v\f\r\016\017\020\021\022\023\024\025\026\027\030\031\032\E\034\035\036\037 !"#$%&\047()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377\u00A0\u20AC\uFFFD\357\277\276\357\277\277\360\220\200\200.'
----
-name: stateptr-underflow
-description:
- This check overflows an Xrestpos stored in a short in R40
-category: fastbox
-stdin:
- function Lb64decode {
- [[ -o utf8-mode ]]; local u=$?
- set +U
- local c s="$*" t=
- [[ -n $s ]] || { s=$(cat;print x); s=${s%x}; }
- local -i i=0 n=${#s} p=0 v x
- local -i16 o
-
- while (( i < n )); do
- c=${s:(i++):1}
- case $c {
- (=) break ;;
- ([A-Z]) (( v = 1#$c - 65 )) ;;
- ([a-z]) (( v = 1#$c - 71 )) ;;
- ([0-9]) (( v = 1#$c + 4 )) ;;
- (+) v=62 ;;
- (/) v=63 ;;
- (*) continue ;;
- }
- (( x = (x << 6) | v ))
- case $((p++)) {
- (0) continue ;;
- (1) (( o = (x >> 4) & 255 )) ;;
- (2) (( o = (x >> 2) & 255 )) ;;
- (3) (( o = x & 255 ))
- p=0
- ;;
- }
- t=$t\\x${o#16#}
- done
- print -n $t
- (( u )) || set -U
- }
-
- i=-1
- s=
- while (( ++i < 12120 )); do
- s+=a
- done
- Lb64decode $s >/dev/null
----
-name: xtrace-1
-description:
- Check that "set -x" doesn't redirect too quickly
-stdin:
- print '#!'"$__progname" >bash
- cat >>bash <<'EOF'
- echo 'GNU bash, version 2.05b.0(1)-release (i386-ecce-mirbsd10)
- Copyright (C) 2002 Free Software Foundation, Inc.'
- EOF
- chmod +x bash
- "$__progname" -xc 'foo=$(./bash --version 2>&1 | head -1); echo "=$foo="'
-expected-stdout:
- =GNU bash, version 2.05b.0(1)-release (i386-ecce-mirbsd10)=
-expected-stderr-pattern:
- /.*/
----
Copied: vendor/MirOS/mksh/R50/check.t (from rev 6707, vendor/MirOS/mksh/dist/check.t)
===================================================================
--- vendor/MirOS/mksh/R50/check.t (rev 0)
+++ vendor/MirOS/mksh/R50/check.t 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,11252 @@
+# $MirOS: src/bin/mksh/check.t,v 1.654 2014/06/29 11:28:26 tg Exp $
+# OpenBSD src/regress/bin/ksh updated: 2013/12/02 20:39:44
+#-
+# Copyright © 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+# 2011, 2012, 2013, 2014
+# Thorsten Glaser <tg at mirbsd.org>
+#
+# Provided that these terms and disclaimer and all copyright notices
+# are retained or reproduced in an accompanying document, permission
+# is granted to deal in this work without restriction, including un‐
+# limited rights to use, publicly perform, distribute, sell, modify,
+# merge, give away, or sublicence.
+#
+# This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
+# the utmost extent permitted by applicable law, neither express nor
+# implied; without malicious intent or gross negligence. In no event
+# may a licensor, author or contributor be held liable for indirect,
+# direct, other damage, loss, or other issues arising in any way out
+# of dealing in the work, even if advised of the possibility of such
+# damage or existence of a defect, except proven that it results out
+# of said person’s immediate fault when using the work as intended.
+#-
+# You may also want to test IFS with the script at
+# http://www.research.att.com/~gsf/public/ifs.sh
+#
+# More testsuites at:
+# http://www.freebsd.org/cgi/cvsweb.cgi/src/tools/regression/bin/test/regress.sh?rev=HEAD
+
+expected-stdout:
+ @(#)MIRBSD KSH R50 2014/06/29
+description:
+ Check version of shell.
+stdin:
+ echo $KSH_VERSION
+name: KSH_VERSION
+category: shell:legacy-no
+---
+expected-stdout:
+ @(#)LEGACY KSH R50 2014/06/29
+description:
+ Check version of legacy shell.
+stdin:
+ echo $KSH_VERSION
+name: KSH_VERSION-legacy
+category: shell:legacy-yes
+---
+name: selftest-1
+description:
+ Regression test self-testing
+stdin:
+ echo ${foo:-baz}
+expected-stdout:
+ baz
+---
+name: selftest-2
+description:
+ Regression test self-testing
+env-setup: !foo=bar!
+stdin:
+ echo ${foo:-baz}
+expected-stdout:
+ bar
+---
+name: selftest-3
+description:
+ Regression test self-testing
+env-setup: !ENV=fnord!
+stdin:
+ echo "<$ENV>"
+expected-stdout:
+ <fnord>
+---
+name: selftest-exec
+description:
+ Ensure that the test run directory (default /tmp but can be changed
+ with check.pl flag -T or test.sh $TMPDIR) is not mounted noexec, as
+ we execute scripts from the scratch directory during several tests.
+stdin:
+ print '#!'"$__progname"'\necho tf' >lq
+ chmod +x lq
+ ./lq
+expected-stdout:
+ tf
+---
+name: selftest-env
+description:
+ Just output the environment variables set (always fails)
+category: disabled
+stdin:
+ set
+---
+name: selftest-legacy
+description:
+ Check some things in the LEGACY KSH
+category: shell:legacy-yes
+stdin:
+ set +o emacs
+ set +o vi
+ [[ "$(set +o) -o" = *"-o emacs -o"* ]] && echo 1=emacs
+ [[ "$(set +o) -o" = *"-o vi -o"* ]] && echo 1=vi
+ set -o emacs
+ set -o vi
+ [[ "$(set +o) -o" = *"-o emacs -o"* ]] && echo 2=emacs
+ [[ "$(set +o) -o" = *"-o vi -o"* ]] && echo 2=vi
+expected-stdout:
+ 2=emacs
+ 2=vi
+---
+name: selftest-direct-builtin-call
+description:
+ Check that direct builtin calls work
+stdin:
+ ln -s "$__progname" cat || cp "$__progname" cat
+ ln -s "$__progname" echo || cp "$__progname" echo
+ ./echo -c 'echo foo' | ./cat -u
+expected-stdout:
+ -c echo foo
+---
+name: alias-1
+description:
+ Check that recursion is detected/avoided in aliases.
+stdin:
+ alias fooBar=fooBar
+ fooBar
+ exit 0
+expected-stderr-pattern:
+ /fooBar.*not found.*/
+---
+name: alias-2
+description:
+ Check that recursion is detected/avoided in aliases.
+stdin:
+ alias fooBar=barFoo
+ alias barFoo=fooBar
+ fooBar
+ barFoo
+ exit 0
+expected-stderr-pattern:
+ /fooBar.*not found.*\n.*barFoo.*not found/
+---
+name: alias-3
+description:
+ Check that recursion is detected/avoided in aliases.
+stdin:
+ alias Echo='echo '
+ alias fooBar=barFoo
+ alias barFoo=fooBar
+ Echo fooBar
+ unalias barFoo
+ Echo fooBar
+expected-stdout:
+ fooBar
+ barFoo
+---
+name: alias-4
+description:
+ Check that alias expansion isn't done on keywords (in keyword
+ postitions).
+stdin:
+ alias Echo='echo '
+ alias while=While
+ while false; do echo hi ; done
+ Echo while
+expected-stdout:
+ While
+---
+name: alias-5
+description:
+ Check that alias expansion done after alias with trailing space.
+stdin:
+ alias Echo='echo '
+ alias foo='bar stuff '
+ alias bar='Bar1 Bar2 '
+ alias stuff='Stuff'
+ alias blah='Blah'
+ Echo foo blah
+expected-stdout:
+ Bar1 Bar2 Stuff Blah
+---
+name: alias-6
+description:
+ Check that alias expansion done after alias with trailing space.
+stdin:
+ alias Echo='echo '
+ alias foo='bar bar'
+ alias bar='Bar '
+ alias blah=Blah
+ Echo foo blah
+expected-stdout:
+ Bar Bar Blah
+---
+name: alias-7
+description:
+ Check that alias expansion done after alias with trailing space
+ after a keyword.
+stdin:
+ alias X='case '
+ alias Y=Z
+ X Y in 'Y') echo is y ;; Z) echo is z ; esac
+expected-stdout:
+ is z
+---
+name: alias-8
+description:
+ Check that newlines in an alias don't cause the command to be lost.
+stdin:
+ alias foo='
+
+
+ echo hi
+
+
+
+ echo there
+
+
+ '
+ foo
+expected-stdout:
+ hi
+ there
+---
+name: alias-9
+description:
+ Check that recursion is detected/avoided in aliases.
+ This check fails for slow machines or Cygwin, raise
+ the time-limit clause (e.g. to 7) if this occurs.
+time-limit: 3
+stdin:
+ print '#!'"$__progname"'\necho tf' >lq
+ chmod +x lq
+ PATH=$PWD:$PATH
+ alias lq=lq
+ lq
+ echo = now
+ i=`lq`
+ print -r -- $i
+ echo = out
+ exit 0
+expected-stdout:
+ tf
+ = now
+ tf
+ = out
+---
+name: alias-10
+description:
+ Check that recursion is detected/avoided in aliases.
+ Regression, introduced during an old bugfix.
+stdin:
+ alias foo='print hello '
+ alias bar='foo world'
+ echo $(bar)
+expected-stdout:
+ hello world
+---
+name: arith-lazy-1
+description:
+ Check that only one side of ternary operator is evaluated
+stdin:
+ x=i+=2
+ y=j+=2
+ typeset -i i=1 j=1
+ echo $((1 ? 20 : (x+=2)))
+ echo $i,$x
+ echo $((0 ? (y+=2) : 30))
+ echo $j,$y
+expected-stdout:
+ 20
+ 1,i+=2
+ 30
+ 1,j+=2
+---
+name: arith-lazy-2
+description:
+ Check that assignments not done on non-evaluated side of ternary
+ operator
+stdin:
+ x=i+=2
+ y=j+=2
+ typeset -i i=1 j=1
+ echo $((1 ? 20 : (x+=2)))
+ echo $i,$x
+ echo $((0 ? (y+=2) : 30))
+ echo $i,$y
+expected-stdout:
+ 20
+ 1,i+=2
+ 30
+ 1,j+=2
+---
+name: arith-lazy-3
+description:
+ Check that assignments not done on non-evaluated side of ternary
+ operator and this construct is parsed correctly (Debian #445651)
+stdin:
+ x=4
+ y=$((0 ? x=1 : 2))
+ echo = $x $y =
+expected-stdout:
+ = 4 2 =
+---
+name: arith-lazy-4
+description:
+ Check that preun/postun not done on non-evaluated side of ternary
+ operator
+stdin:
+ (( m = n = 0, 1 ? n++ : m++ ? 2 : 3 ))
+ echo "($n, $m)"
+ m=0; echo $(( 0 ? ++m : 2 )); echo $m
+ m=0; echo $(( 0 ? m++ : 2 )); echo $m
+expected-stdout:
+ (1, 0)
+ 2
+ 0
+ 2
+ 0
+---
+name: arith-ternary-prec-1
+description:
+ Check precedence of ternary operator vs assignment
+stdin:
+ typeset -i x=2
+ y=$((1 ? 20 : x+=2))
+expected-exit: e != 0
+expected-stderr-pattern:
+ /.*:.*1 \? 20 : x\+=2.*lvalue.*\n$/
+---
+name: arith-ternary-prec-2
+description:
+ Check precedence of ternary operator vs assignment
+stdin:
+ typeset -i x=2
+ echo $((0 ? x+=2 : 20))
+expected-stdout:
+ 20
+---
+name: arith-div-assoc-1
+description:
+ Check associativity of division operator
+stdin:
+ echo $((20 / 2 / 2))
+expected-stdout:
+ 5
+---
+name: arith-div-byzero
+description:
+ Check division by zero errors out
+stdin:
+ x=$(echo $((1 / 0)))
+ echo =$?:$x.
+expected-stdout:
+ =1:.
+expected-stderr-pattern:
+ /.*divisor/
+---
+name: arith-div-intmin-by-minusone
+description:
+ Check division overflow wraps around silently
+category: int:32
+stdin:
+ echo signed:$((-2147483648 / -1))r$((-2147483648 % -1)).
+ echo unsigned:$((# -2147483648 / -1))r$((# -2147483648 % -1)).
+expected-stdout:
+ signed:-2147483648r0.
+ unsigned:0r2147483648.
+---
+name: arith-div-intmin-by-minusone-64
+description:
+ Check division overflow wraps around silently
+category: int:64
+stdin:
+ echo signed:$((-9223372036854775808 / -1))r$((-9223372036854775808 % -1)).
+ echo unsigned:$((# -9223372036854775808 / -1))r$((# -9223372036854775808 % -1)).
+expected-stdout:
+ signed:-9223372036854775808r0.
+ unsigned:0r9223372036854775808.
+---
+name: arith-assop-assoc-1
+description:
+ Check associativity of assignment-operator operator
+stdin:
+ typeset -i i=1 j=2 k=3
+ echo $((i += j += k))
+ echo $i,$j,$k
+expected-stdout:
+ 6
+ 6,5,3
+---
+name: arith-mandatory
+description:
+ Passing of this test is *mandatory* for a valid mksh executable!
+category: shell:legacy-no
+stdin:
+ typeset -i sari=0
+ typeset -Ui uari=0
+ typeset -i x=0
+ print -r -- $((x++)):$sari=$uari. #0
+ let --sari --uari
+ print -r -- $((x++)):$sari=$uari. #1
+ sari=2147483647 uari=2147483647
+ print -r -- $((x++)):$sari=$uari. #2
+ let ++sari ++uari
+ print -r -- $((x++)):$sari=$uari. #3
+ let --sari --uari
+ let 'sari *= 2' 'uari *= 2'
+ let ++sari ++uari
+ print -r -- $((x++)):$sari=$uari. #4
+ let ++sari ++uari
+ print -r -- $((x++)):$sari=$uari. #5
+ sari=-2147483648 uari=-2147483648
+ print -r -- $((x++)):$sari=$uari. #6
+ let --sari --uari
+ print -r -- $((x++)):$sari=$uari. #7
+ (( sari = -5 >> 1 ))
+ ((# uari = -5 >> 1 ))
+ print -r -- $((x++)):$sari=$uari. #8
+ (( sari = -2 ))
+ ((# uari = sari ))
+ print -r -- $((x++)):$sari=$uari. #9
+expected-stdout:
+ 0:0=0.
+ 1:-1=4294967295.
+ 2:2147483647=2147483647.
+ 3:-2147483648=2147483648.
+ 4:-1=4294967295.
+ 5:0=0.
+ 6:-2147483648=2147483648.
+ 7:2147483647=2147483647.
+ 8:-3=2147483645.
+ 9:-2=4294967294.
+---
+name: arith-unsigned-1
+description:
+ Check if unsigned arithmetics work
+category: int:32
+stdin:
+ # signed vs unsigned
+ echo x1 $((-1)) $((#-1))
+ # calculating
+ typeset -i vs
+ typeset -Ui vu
+ vs=4123456789; vu=4123456789
+ echo x2 $vs $vu
+ (( vs %= 2147483647 ))
+ (( vu %= 2147483647 ))
+ echo x3 $vs $vu
+ vs=4123456789; vu=4123456789
+ (( # vs %= 2147483647 ))
+ (( # vu %= 2147483647 ))
+ echo x4 $vs $vu
+ # make sure the calculation does not change unsigned flag
+ vs=4123456789; vu=4123456789
+ echo x5 $vs $vu
+ # short form
+ echo x6 $((# vs % 2147483647)) $((# vu % 2147483647))
+ # array refs
+ set -A va
+ va[1975973142]=right
+ va[4123456789]=wrong
+ echo x7 ${va[#4123456789%2147483647]}
+expected-stdout:
+ x1 -1 4294967295
+ x2 -171510507 4123456789
+ x3 -171510507 4123456789
+ x4 1975973142 1975973142
+ x5 -171510507 4123456789
+ x6 1975973142 1975973142
+ x7 right
+---
+name: arith-limit32-1
+description:
+ Check if arithmetics are 32 bit
+category: int:32
+stdin:
+ # signed vs unsigned
+ echo x1 $((-1)) $((#-1))
+ # calculating
+ typeset -i vs
+ typeset -Ui vu
+ vs=2147483647; vu=2147483647
+ echo x2 $vs $vu
+ let vs++ vu++
+ echo x3 $vs $vu
+ vs=4294967295; vu=4294967295
+ echo x4 $vs $vu
+ let vs++ vu++
+ echo x5 $vs $vu
+ let vs++ vu++
+ echo x6 $vs $vu
+expected-stdout:
+ x1 -1 4294967295
+ x2 2147483647 2147483647
+ x3 -2147483648 2147483648
+ x4 -1 4294967295
+ x5 0 0
+ x6 1 1
+---
+name: arith-limit64-1
+description:
+ Check if arithmetics are 64 bit
+category: int:64
+stdin:
+ # signed vs unsigned
+ echo x1 $((-1)) $((#-1))
+ # calculating
+ typeset -i vs
+ typeset -Ui vu
+ vs=9223372036854775807; vu=9223372036854775807
+ echo x2 $vs $vu
+ let vs++ vu++
+ echo x3 $vs $vu
+ vs=18446744073709551615; vu=18446744073709551615
+ echo x4 $vs $vu
+ let vs++ vu++
+ echo x5 $vs $vu
+ let vs++ vu++
+ echo x6 $vs $vu
+expected-stdout:
+ x1 -1 18446744073709551615
+ x2 9223372036854775807 9223372036854775807
+ x3 -9223372036854775808 9223372036854775808
+ x4 -1 18446744073709551615
+ x5 0 0
+ x6 1 1
+---
+name: bksl-nl-ign-1
+description:
+ Check that \newline is not collapsed after #
+stdin:
+ echo hi #there \
+ echo folks
+expected-stdout:
+ hi
+ folks
+---
+name: bksl-nl-ign-2
+description:
+ Check that \newline is not collapsed inside single quotes
+stdin:
+ echo 'hi \
+ there'
+ echo folks
+expected-stdout:
+ hi \
+ there
+ folks
+---
+name: bksl-nl-ign-3
+description:
+ Check that \newline is not collapsed inside single quotes
+stdin:
+ cat << \EOF
+ hi \
+ there
+ EOF
+expected-stdout:
+ hi \
+ there
+---
+name: bksl-nl-ign-4
+description:
+ Check interaction of aliases, single quotes and here-documents
+ with backslash-newline
+ (don't know what POSIX has to say about this)
+stdin:
+ a=2
+ alias x='echo hi
+ cat << "EOF"
+ foo\
+ bar
+ some'
+ x
+ more\
+ stuff$a
+ EOF
+expected-stdout:
+ hi
+ foo\
+ bar
+ some
+ more\
+ stuff$a
+---
+name: bksl-nl-ign-5
+description:
+ Check what happens with backslash at end of input
+ (the old Bourne shell trashes them; so do we)
+stdin: !
+ echo `echo foo\\`bar
+ echo hi\
+expected-stdout:
+ foobar
+ hi
+---
+#
+# Places \newline should be collapsed
+#
+name: bksl-nl-1
+description:
+ Check that \newline is collapsed before, in the middle of, and
+ after words
+stdin:
+ \
+ echo hi\
+ There, \
+ folks
+expected-stdout:
+ hiThere, folks
+---
+name: bksl-nl-2
+description:
+ Check that \newline is collapsed in $ sequences
+ (ksh93 fails this)
+stdin:
+ a=12
+ ab=19
+ echo $\
+ a
+ echo $a\
+ b
+ echo $\
+ {a}
+ echo ${a\
+ b}
+ echo ${ab\
+ }
+expected-stdout:
+ 12
+ 19
+ 12
+ 19
+ 19
+---
+name: bksl-nl-3
+description:
+ Check that \newline is collapsed in $(..) and `...` sequences
+ (ksh93 fails this)
+stdin:
+ echo $\
+ (echo foobar1)
+ echo $(\
+ echo foobar2)
+ echo $(echo foo\
+ bar3)
+ echo $(echo foobar4\
+ )
+ echo `
+ echo stuff1`
+ echo `echo st\
+ uff2`
+expected-stdout:
+ foobar1
+ foobar2
+ foobar3
+ foobar4
+ stuff1
+ stuff2
+---
+name: bksl-nl-4
+description:
+ Check that \newline is collapsed in $((..)) sequences
+ (ksh93 fails this)
+stdin:
+ echo $\
+ ((1+2))
+ echo $(\
+ (1+2+3))
+ echo $((\
+ 1+2+3+4))
+ echo $((1+\
+ 2+3+4+5))
+ echo $((1+2+3+4+5+6)\
+ )
+expected-stdout:
+ 3
+ 6
+ 10
+ 15
+ 21
+---
+name: bksl-nl-5
+description:
+ Check that \newline is collapsed in double quoted strings
+stdin:
+ echo "\
+ hi"
+ echo "foo\
+ bar"
+ echo "folks\
+ "
+expected-stdout:
+ hi
+ foobar
+ folks
+---
+name: bksl-nl-6
+description:
+ Check that \newline is collapsed in here document delimiters
+ (ksh93 fails second part of this)
+stdin:
+ a=12
+ cat << EO\
+ F
+ a=$a
+ foo\
+ bar
+ EOF
+ cat << E_O_F
+ foo
+ E_O_\
+ F
+ echo done
+expected-stdout:
+ a=12
+ foobar
+ foo
+ done
+---
+name: bksl-nl-7
+description:
+ Check that \newline is collapsed in double-quoted here-document
+ delimiter.
+stdin:
+ a=12
+ cat << "EO\
+ F"
+ a=$a
+ foo\
+ bar
+ EOF
+ echo done
+expected-stdout:
+ a=$a
+ foo\
+ bar
+ done
+---
+name: bksl-nl-8
+description:
+ Check that \newline is collapsed in various 2+ character tokens
+ delimiter.
+ (ksh93 fails this)
+stdin:
+ echo hi &\
+ & echo there
+ echo foo |\
+ | echo bar
+ cat <\
+ < EOF
+ stuff
+ EOF
+ cat <\
+ <\
+ - EOF
+ more stuff
+ EOF
+ cat <<\
+ EOF
+ abcdef
+ EOF
+ echo hi >\
+ > /dev/null
+ echo $?
+ i=1
+ case $i in
+ (\
+ x|\
+ 1\
+ ) echo hi;\
+ ;
+ (*) echo oops
+ esac
+expected-stdout:
+ hi
+ there
+ foo
+ stuff
+ more stuff
+ abcdef
+ 0
+ hi
+---
+name: bksl-nl-9
+description:
+ Check that \ at the end of an alias is collapsed when followed
+ by a newline
+ (don't know what POSIX has to say about this)
+stdin:
+ alias x='echo hi\'
+ x
+ echo there
+expected-stdout:
+ hiecho there
+---
+name: bksl-nl-10
+description:
+ Check that \newline in a keyword is collapsed
+stdin:
+ i\
+ f true; then\
+ echo pass; el\
+ se echo fail; fi
+expected-stdout:
+ pass
+---
+#
+# Places \newline should be collapsed (ksh extensions)
+#
+name: bksl-nl-ksh-1
+description:
+ Check that \newline is collapsed in extended globbing
+ (ksh93 fails this)
+stdin:
+ xxx=foo
+ case $xxx in
+ (f*\
+ (\
+ o\
+ )\
+ ) echo ok ;;
+ *) echo bad
+ esac
+expected-stdout:
+ ok
+---
+name: bksl-nl-ksh-2
+description:
+ Check that \newline is collapsed in ((...)) expressions
+ (ksh93 fails this)
+stdin:
+ i=1
+ (\
+ (\
+ i=i+2\
+ )\
+ )
+ echo $i
+expected-stdout:
+ 3
+---
+name: break-1
+description:
+ See if break breaks out of loops
+stdin:
+ for i in a b c; do echo $i; break; echo bad-$i; done
+ echo end-1
+ for i in a b c; do echo $i; break 1; echo bad-$i; done
+ echo end-2
+ for i in a b c; do
+ for j in x y z; do
+ echo $i:$j
+ break
+ echo bad-$i
+ done
+ echo end-$i
+ done
+ echo end-3
+expected-stdout:
+ a
+ end-1
+ a
+ end-2
+ a:x
+ end-a
+ b:x
+ end-b
+ c:x
+ end-c
+ end-3
+---
+name: break-2
+description:
+ See if break breaks out of nested loops
+stdin:
+ for i in a b c; do
+ for j in x y z; do
+ echo $i:$j
+ break 2
+ echo bad-$i
+ done
+ echo end-$i
+ done
+ echo end
+expected-stdout:
+ a:x
+ end
+---
+name: break-3
+description:
+ What if break used outside of any loops
+ (ksh88,ksh93 don't print error messages here)
+stdin:
+ break
+expected-stderr-pattern:
+ /.*break.*/
+---
+name: break-4
+description:
+ What if break N used when only N-1 loops
+ (ksh88,ksh93 don't print error messages here)
+stdin:
+ for i in a b c; do echo $i; break 2; echo bad-$i; done
+ echo end
+expected-stdout:
+ a
+ end
+expected-stderr-pattern:
+ /.*break.*/
+---
+name: break-5
+description:
+ Error if break argument isn't a number
+stdin:
+ for i in a b c; do echo $i; break abc; echo more-$i; done
+ echo end
+expected-stdout:
+ a
+expected-exit: e != 0
+expected-stderr-pattern:
+ /.*break.*/
+---
+name: continue-1
+description:
+ See if continue continues loops
+stdin:
+ for i in a b c; do echo $i; continue; echo bad-$i ; done
+ echo end-1
+ for i in a b c; do echo $i; continue 1; echo bad-$i; done
+ echo end-2
+ for i in a b c; do
+ for j in x y z; do
+ echo $i:$j
+ continue
+ echo bad-$i-$j
+ done
+ echo end-$i
+ done
+ echo end-3
+expected-stdout:
+ a
+ b
+ c
+ end-1
+ a
+ b
+ c
+ end-2
+ a:x
+ a:y
+ a:z
+ end-a
+ b:x
+ b:y
+ b:z
+ end-b
+ c:x
+ c:y
+ c:z
+ end-c
+ end-3
+---
+name: continue-2
+description:
+ See if continue breaks out of nested loops
+stdin:
+ for i in a b c; do
+ for j in x y z; do
+ echo $i:$j
+ continue 2
+ echo bad-$i-$j
+ done
+ echo end-$i
+ done
+ echo end
+expected-stdout:
+ a:x
+ b:x
+ c:x
+ end
+---
+name: continue-3
+description:
+ What if continue used outside of any loops
+ (ksh88,ksh93 don't print error messages here)
+stdin:
+ continue
+expected-stderr-pattern:
+ /.*continue.*/
+---
+name: continue-4
+description:
+ What if continue N used when only N-1 loops
+ (ksh88,ksh93 don't print error messages here)
+stdin:
+ for i in a b c; do echo $i; continue 2; echo bad-$i; done
+ echo end
+expected-stdout:
+ a
+ b
+ c
+ end
+expected-stderr-pattern:
+ /.*continue.*/
+---
+name: continue-5
+description:
+ Error if continue argument isn't a number
+stdin:
+ for i in a b c; do echo $i; continue abc; echo more-$i; done
+ echo end
+expected-stdout:
+ a
+expected-exit: e != 0
+expected-stderr-pattern:
+ /.*continue.*/
+---
+name: cd-history
+description:
+ Test someone's CD history package (uses arrays)
+stdin:
+ # go to known place before doing anything
+ cd /
+
+ alias cd=_cd
+ function _cd
+ {
+ typeset -i cdlen i
+ typeset t
+
+ if [ $# -eq 0 ]
+ then
+ set -- $HOME
+ fi
+
+ if [ "$CDHISTFILE" -a -r "$CDHISTFILE" ] # if directory history exists
+ then
+ typeset CDHIST
+ i=-1
+ while read -r t # read directory history file
+ do
+ CDHIST[i=i+1]=$t
+ done <$CDHISTFILE
+ fi
+
+ if [ "${CDHIST[0]}" != "$PWD" -a "$PWD" != "" ]
+ then
+ _cdins # insert $PWD into cd history
+ fi
+
+ cdlen=${#CDHIST[*]} # number of elements in history
+
+ case "$@" in
+ -) # cd to new dir
+ if [ "$OLDPWD" = "" ] && ((cdlen>1))
+ then
+ 'print' ${CDHIST[1]}
+ 'cd' ${CDHIST[1]}
+ _pwd
+ else
+ 'cd' $@
+ _pwd
+ fi
+ ;;
+ -l) # print directory list
+ typeset -R3 num
+ ((i=cdlen))
+ while (((i=i-1)>=0))
+ do
+ num=$i
+ 'print' "$num ${CDHIST[i]}"
+ done
+ return
+ ;;
+ -[0-9]|-[0-9][0-9]) # cd to dir in list
+ if (((i=${1#-})<cdlen))
+ then
+ 'print' ${CDHIST[i]}
+ 'cd' ${CDHIST[i]}
+ _pwd
+ else
+ 'cd' $@
+ _pwd
+ fi
+ ;;
+ -*) # cd to matched dir in list
+ t=${1#-}
+ i=1
+ while ((i<cdlen))
+ do
+ case ${CDHIST[i]} in
+ *$t*)
+ 'print' ${CDHIST[i]}
+ 'cd' ${CDHIST[i]}
+ _pwd
+ break
+ ;;
+ esac
+ ((i=i+1))
+ done
+ if ((i>=cdlen))
+ then
+ 'cd' $@
+ _pwd
+ fi
+ ;;
+ *) # cd to new dir
+ 'cd' $@
+ _pwd
+ ;;
+ esac
+
+ _cdins # insert $PWD into cd history
+
+ if [ "$CDHISTFILE" ]
+ then
+ cdlen=${#CDHIST[*]} # number of elements in history
+
+ i=0
+ while ((i<cdlen))
+ do
+ 'print' -r ${CDHIST[i]} # update directory history
+ ((i=i+1))
+ done >$CDHISTFILE
+ fi
+ }
+
+ function _cdins # insert $PWD into cd history
+ { # meant to be called only by _cd
+ typeset -i i
+
+ ((i=0))
+ while ((i<${#CDHIST[*]})) # see if dir is already in list
+ do
+ if [ "${CDHIST[$i]}" = "$PWD" ]
+ then
+ break
+ fi
+ ((i=i+1))
+ done
+
+ if ((i>22)) # limit max size of list
+ then
+ i=22
+ fi
+
+ while (((i=i-1)>=0)) # bump old dirs in list
+ do
+ CDHIST[i+1]=${CDHIST[i]}
+ done
+
+ CDHIST[0]=$PWD # insert new directory in list
+ }
+
+
+ function _pwd
+ {
+ if [ -n "$ECD" ]
+ then
+ pwd 1>&6
+ fi
+ }
+ # Start of test
+ cd /tmp
+ cd /bin
+ cd /etc
+ cd -
+ cd -2
+ cd -l
+expected-stdout:
+ /bin
+ /tmp
+ 3 /
+ 2 /etc
+ 1 /bin
+ 0 /tmp
+---
+name: cd-pe
+description:
+ Check package for cd -Pe
+need-pass: no
+# the mv command fails on Cygwin
+# Hurd aborts the testsuite (permission denied)
+# QNX does not find subdir to cd into
+category: !os:cygwin,!os:gnu,!os:msys,!os:nto,!nosymlink
+file-setup: file 644 "x"
+ mkdir noread noread/target noread/target/subdir
+ ln -s noread link
+ chmod 311 noread
+ cd -P$1 .
+ echo 0=$?
+ bwd=$PWD
+ cd -P$1 link/target
+ echo 1=$?,${PWD#$bwd/}
+ epwd=$($TSHELL -c pwd 2>/dev/null)
+ # This unexpectedly succeeds on GNU/Linux and MidnightBSD
+ #echo pwd=$?,$epwd
+ # expect: pwd=1,
+ mv ../../noread ../../renamed
+ cd -P$1 subdir
+ echo 2=$?,${PWD#$bwd/}
+ cd $bwd
+ chmod 755 renamed
+ rm -rf noread link renamed
+stdin:
+ export TSHELL="$__progname"
+ "$__progname" x
+ echo "now with -e:"
+ "$__progname" x e
+expected-stdout:
+ 0=0
+ 1=0,noread/target
+ 2=0,noread/target/subdir
+ now with -e:
+ 0=0
+ 1=0,noread/target
+ 2=1,noread/target/subdir
+---
+name: env-prompt
+description:
+ Check that prompt not printed when processing ENV
+env-setup: !ENV=./foo!
+file-setup: file 644 "foo"
+ XXX=_
+ PS1=X
+ false && echo hmmm
+need-ctty: yes
+arguments: !-i!
+stdin:
+ echo hi${XXX}there
+expected-stdout:
+ hi_there
+expected-stderr: !
+ XX
+---
+name: expand-ugly
+description:
+ Check that weird ${foo+bar} constructs are parsed correctly
+stdin:
+ print '#!'"$__progname"'\nfor x in "$@"; do print -r -- "$x"; done' >pfn
+ print '#!'"$__progname"'\nfor x in "$@"; do print -nr -- "<$x> "; done' >pfs
+ chmod +x pfn pfs
+ (echo 1 ${IFS+'}'z}) 2>/dev/null || echo failed in 1
+ (echo 2 "${IFS+'}'z}") 2>/dev/null || echo failed in 2
+ (echo 3 "foo ${IFS+'bar} baz") 2>/dev/null || echo failed in 3
+ (echo -n '4 '; ./pfn "foo ${IFS+"b c"} baz") 2>/dev/null || echo failed in 4
+ (echo -n '5 '; ./pfn "foo ${IFS+b c} baz") 2>/dev/null || echo failed in 5
+ (echo 6 ${IFS+"}"z}) 2>/dev/null || echo failed in 6
+ (echo 7 "${IFS+"}"z}") 2>/dev/null || echo failed in 7
+ (echo 8 "${IFS+\"}\"z}") 2>/dev/null || echo failed in 8
+ (echo 9 "${IFS+\"\}\"z}") 2>/dev/null || echo failed in 9
+ (echo 10 foo ${IFS+'bar} baz'}) 2>/dev/null || echo failed in 10
+ (echo 11 "$(echo "${IFS+'}'z}")") 2>/dev/null || echo failed in 11
+ (echo 12 "$(echo ${IFS+'}'z})") 2>/dev/null || echo failed in 12
+ (echo 13 ${IFS+\}z}) 2>/dev/null || echo failed in 13
+ (echo 14 "${IFS+\}z}") 2>/dev/null || echo failed in 14
+ u=x; (echo -n '15 '; ./pfs "foo ${IFS+a"b$u{ {"{{\}b} c ${IFS+d{}} bar" ${IFS-e{}} baz; echo .) 2>/dev/null || echo failed in 15
+ l=t; (echo 16 ${IFS+h`echo -n i ${IFS+$l}h`ere}) 2>/dev/null || echo failed in 16
+ l=t; (echo 17 ${IFS+h$(echo -n i ${IFS+$l}h)ere}) 2>/dev/null || echo failed in 17
+ l=t; (echo 18 "${IFS+h`echo -n i ${IFS+$l}h`ere}") 2>/dev/null || echo failed in 18
+ l=t; (echo 19 "${IFS+h$(echo -n i ${IFS+$l}h)ere}") 2>/dev/null || echo failed in 19
+ l=t; (echo 20 ${IFS+h`echo -n i "${IFS+$l}"h`ere}) 2>/dev/null || echo failed in 20
+ l=t; (echo 21 ${IFS+h$(echo -n i "${IFS+$l}"h)ere}) 2>/dev/null || echo failed in 21
+ l=t; (echo 22 "${IFS+h`echo -n i "${IFS+$l}"h`ere}") 2>/dev/null || echo failed in 22
+ l=t; (echo 23 "${IFS+h$(echo -n i "${IFS+$l}"h)ere}") 2>/dev/null || echo failed in 23
+ key=value; (echo -n '24 '; ./pfn "${IFS+'$key'}") 2>/dev/null || echo failed in 24
+ key=value; (echo -n '25 '; ./pfn "${IFS+"'$key'"}") 2>/dev/null || echo failed in 25 # ksh93: “'$key'”
+ key=value; (echo -n '26 '; ./pfn ${IFS+'$key'}) 2>/dev/null || echo failed in 26
+ key=value; (echo -n '27 '; ./pfn ${IFS+"'$key'"}) 2>/dev/null || echo failed in 27
+ (echo -n '28 '; ./pfn "${IFS+"'"x ~ x'}'x"'}"x}" #') 2>/dev/null || echo failed in 28
+ u=x; (echo -n '29 '; ./pfs foo ${IFS+a"b$u{ {"{ {\}b} c ${IFS+d{}} bar ${IFS-e{}} baz; echo .) 2>/dev/null || echo failed in 29
+ (echo -n '30 '; ./pfs ${IFS+foo 'b\
+ ar' baz}; echo .) 2>/dev/null || (echo failed in 30; echo failed in 31)
+ (echo -n '32 '; ./pfs ${IFS+foo "b\
+ ar" baz}; echo .) 2>/dev/null || echo failed in 32
+ (echo -n '33 '; ./pfs "${IFS+foo 'b\
+ ar' baz}"; echo .) 2>/dev/null || echo failed in 33
+ (echo -n '34 '; ./pfs "${IFS+foo "b\
+ ar" baz}"; echo .) 2>/dev/null || echo failed in 34
+ (echo -n '35 '; ./pfs ${v=a\ b} x ${v=c\ d}; echo .) 2>/dev/null || echo failed in 35
+ (echo -n '36 '; ./pfs "${v=a\ b}" x "${v=c\ d}"; echo .) 2>/dev/null || echo failed in 36
+ (echo -n '37 '; ./pfs ${v-a\ b} x ${v-c\ d}; echo .) 2>/dev/null || echo failed in 37
+ (echo 38 ${IFS+x'a'y} / "${IFS+x'a'y}" .) 2>/dev/null || echo failed in 38
+ foo="x'a'y"; (echo 39 ${foo%*'a'*} / "${foo%*'a'*}" .) 2>/dev/null || echo failed in 39
+ foo="a b c"; (echo -n '40 '; ./pfs "${foo#a}"; echo .) 2>/dev/null || echo failed in 40
+expected-stdout:
+ 1 }z
+ 2 ''z}
+ 3 foo 'bar baz
+ 4 foo b c baz
+ 5 foo b c baz
+ 6 }z
+ 7 }z
+ 8 ""z}
+ 9 "}"z
+ 10 foo bar} baz
+ 11 ''z}
+ 12 }z
+ 13 }z
+ 14 }z
+ 15 <foo abx{ {{{}b c d{} bar> <}> <baz> .
+ 16 hi there
+ 17 hi there
+ 18 hi there
+ 19 hi there
+ 20 hi there
+ 21 hi there
+ 22 hi there
+ 23 hi there
+ 24 'value'
+ 25 'value'
+ 26 $key
+ 27 'value'
+ 28 'x ~ x''x}"x}" #
+ 29 <foo> <abx{ {{> <{}b> <c> <d{}> <bar> <}> <baz> .
+ 30 <foo> <b\
+ ar> <baz> .
+ 32 <foo> <bar> <baz> .
+ 33 <foo 'bar' baz> .
+ 34 <foo bar baz> .
+ 35 <a> <b> <x> <a> <b> .
+ 36 <a\ b> <x> <a\ b> .
+ 37 <a b> <x> <c d> .
+ 38 xay / x'a'y .
+ 39 x' / x' .
+ 40 < b c> .
+---
+name: expand-unglob-dblq
+description:
+ Check that regular "${foo+bar}" constructs are parsed correctly
+stdin:
+ u=x
+ tl_norm() {
+ v=$2
+ test x"$v" = x"-" && unset v
+ (echo "$1 plus norm foo ${v+'bar'} baz")
+ (echo "$1 dash norm foo ${v-'bar'} baz")
+ (echo "$1 eqal norm foo ${v='bar'} baz")
+ (echo "$1 qstn norm foo ${v?'bar'} baz") 2>/dev/null || \
+ echo "$1 qstn norm -> error"
+ (echo "$1 PLUS norm foo ${v:+'bar'} baz")
+ (echo "$1 DASH norm foo ${v:-'bar'} baz")
+ (echo "$1 EQAL norm foo ${v:='bar'} baz")
+ (echo "$1 QSTN norm foo ${v:?'bar'} baz") 2>/dev/null || \
+ echo "$1 QSTN norm -> error"
+ }
+ tl_paren() {
+ v=$2
+ test x"$v" = x"-" && unset v
+ (echo "$1 plus parn foo ${v+(bar)} baz")
+ (echo "$1 dash parn foo ${v-(bar)} baz")
+ (echo "$1 eqal parn foo ${v=(bar)} baz")
+ (echo "$1 qstn parn foo ${v?(bar)} baz") 2>/dev/null || \
+ echo "$1 qstn parn -> error"
+ (echo "$1 PLUS parn foo ${v:+(bar)} baz")
+ (echo "$1 DASH parn foo ${v:-(bar)} baz")
+ (echo "$1 EQAL parn foo ${v:=(bar)} baz")
+ (echo "$1 QSTN parn foo ${v:?(bar)} baz") 2>/dev/null || \
+ echo "$1 QSTN parn -> error"
+ }
+ tl_brace() {
+ v=$2
+ test x"$v" = x"-" && unset v
+ (echo "$1 plus brac foo ${v+a$u{{{\}b} c ${v+d{}} baz")
+ (echo "$1 dash brac foo ${v-a$u{{{\}b} c ${v-d{}} baz")
+ (echo "$1 eqal brac foo ${v=a$u{{{\}b} c ${v=d{}} baz")
+ (echo "$1 qstn brac foo ${v?a$u{{{\}b} c ${v?d{}} baz") 2>/dev/null || \
+ echo "$1 qstn brac -> error"
+ (echo "$1 PLUS brac foo ${v:+a$u{{{\}b} c ${v:+d{}} baz")
+ (echo "$1 DASH brac foo ${v:-a$u{{{\}b} c ${v:-d{}} baz")
+ (echo "$1 EQAL brac foo ${v:=a$u{{{\}b} c ${v:=d{}} baz")
+ (echo "$1 QSTN brac foo ${v:?a$u{{{\}b} c ${v:?d{}} baz") 2>/dev/null || \
+ echo "$1 QSTN brac -> error"
+ }
+ tl_norm 1 -
+ tl_norm 2 ''
+ tl_norm 3 x
+ tl_paren 4 -
+ tl_paren 5 ''
+ tl_paren 6 x
+ tl_brace 7 -
+ tl_brace 8 ''
+ tl_brace 9 x
+expected-stdout:
+ 1 plus norm foo baz
+ 1 dash norm foo 'bar' baz
+ 1 eqal norm foo 'bar' baz
+ 1 qstn norm -> error
+ 1 PLUS norm foo baz
+ 1 DASH norm foo 'bar' baz
+ 1 EQAL norm foo 'bar' baz
+ 1 QSTN norm -> error
+ 2 plus norm foo 'bar' baz
+ 2 dash norm foo baz
+ 2 eqal norm foo baz
+ 2 qstn norm foo baz
+ 2 PLUS norm foo baz
+ 2 DASH norm foo 'bar' baz
+ 2 EQAL norm foo 'bar' baz
+ 2 QSTN norm -> error
+ 3 plus norm foo 'bar' baz
+ 3 dash norm foo x baz
+ 3 eqal norm foo x baz
+ 3 qstn norm foo x baz
+ 3 PLUS norm foo 'bar' baz
+ 3 DASH norm foo x baz
+ 3 EQAL norm foo x baz
+ 3 QSTN norm foo x baz
+ 4 plus parn foo baz
+ 4 dash parn foo (bar) baz
+ 4 eqal parn foo (bar) baz
+ 4 qstn parn -> error
+ 4 PLUS parn foo baz
+ 4 DASH parn foo (bar) baz
+ 4 EQAL parn foo (bar) baz
+ 4 QSTN parn -> error
+ 5 plus parn foo (bar) baz
+ 5 dash parn foo baz
+ 5 eqal parn foo baz
+ 5 qstn parn foo baz
+ 5 PLUS parn foo baz
+ 5 DASH parn foo (bar) baz
+ 5 EQAL parn foo (bar) baz
+ 5 QSTN parn -> error
+ 6 plus parn foo (bar) baz
+ 6 dash parn foo x baz
+ 6 eqal parn foo x baz
+ 6 qstn parn foo x baz
+ 6 PLUS parn foo (bar) baz
+ 6 DASH parn foo x baz
+ 6 EQAL parn foo x baz
+ 6 QSTN parn foo x baz
+ 7 plus brac foo c } baz
+ 7 dash brac foo ax{{{}b c d{} baz
+ 7 eqal brac foo ax{{{}b c ax{{{}b} baz
+ 7 qstn brac -> error
+ 7 PLUS brac foo c } baz
+ 7 DASH brac foo ax{{{}b c d{} baz
+ 7 EQAL brac foo ax{{{}b c ax{{{}b} baz
+ 7 QSTN brac -> error
+ 8 plus brac foo ax{{{}b c d{} baz
+ 8 dash brac foo c } baz
+ 8 eqal brac foo c } baz
+ 8 qstn brac foo c } baz
+ 8 PLUS brac foo c } baz
+ 8 DASH brac foo ax{{{}b c d{} baz
+ 8 EQAL brac foo ax{{{}b c ax{{{}b} baz
+ 8 QSTN brac -> error
+ 9 plus brac foo ax{{{}b c d{} baz
+ 9 dash brac foo x c x} baz
+ 9 eqal brac foo x c x} baz
+ 9 qstn brac foo x c x} baz
+ 9 PLUS brac foo ax{{{}b c d{} baz
+ 9 DASH brac foo x c x} baz
+ 9 EQAL brac foo x c x} baz
+ 9 QSTN brac foo x c x} baz
+---
+name: expand-unglob-unq
+description:
+ Check that regular ${foo+bar} constructs are parsed correctly
+stdin:
+ u=x
+ tl_norm() {
+ v=$2
+ test x"$v" = x"-" && unset v
+ (echo $1 plus norm foo ${v+'bar'} baz)
+ (echo $1 dash norm foo ${v-'bar'} baz)
+ (echo $1 eqal norm foo ${v='bar'} baz)
+ (echo $1 qstn norm foo ${v?'bar'} baz) 2>/dev/null || \
+ echo "$1 qstn norm -> error"
+ (echo $1 PLUS norm foo ${v:+'bar'} baz)
+ (echo $1 DASH norm foo ${v:-'bar'} baz)
+ (echo $1 EQAL norm foo ${v:='bar'} baz)
+ (echo $1 QSTN norm foo ${v:?'bar'} baz) 2>/dev/null || \
+ echo "$1 QSTN norm -> error"
+ }
+ tl_paren() {
+ v=$2
+ test x"$v" = x"-" && unset v
+ (echo $1 plus parn foo ${v+\(bar')'} baz)
+ (echo $1 dash parn foo ${v-\(bar')'} baz)
+ (echo $1 eqal parn foo ${v=\(bar')'} baz)
+ (echo $1 qstn parn foo ${v?\(bar')'} baz) 2>/dev/null || \
+ echo "$1 qstn parn -> error"
+ (echo $1 PLUS parn foo ${v:+\(bar')'} baz)
+ (echo $1 DASH parn foo ${v:-\(bar')'} baz)
+ (echo $1 EQAL parn foo ${v:=\(bar')'} baz)
+ (echo $1 QSTN parn foo ${v:?\(bar')'} baz) 2>/dev/null || \
+ echo "$1 QSTN parn -> error"
+ }
+ tl_brace() {
+ v=$2
+ test x"$v" = x"-" && unset v
+ (echo $1 plus brac foo ${v+a$u{{{\}b} c ${v+d{}} baz)
+ (echo $1 dash brac foo ${v-a$u{{{\}b} c ${v-d{}} baz)
+ (echo $1 eqal brac foo ${v=a$u{{{\}b} c ${v=d{}} baz)
+ (echo $1 qstn brac foo ${v?a$u{{{\}b} c ${v?d{}} baz) 2>/dev/null || \
+ echo "$1 qstn brac -> error"
+ (echo $1 PLUS brac foo ${v:+a$u{{{\}b} c ${v:+d{}} baz)
+ (echo $1 DASH brac foo ${v:-a$u{{{\}b} c ${v:-d{}} baz)
+ (echo $1 EQAL brac foo ${v:=a$u{{{\}b} c ${v:=d{}} baz)
+ (echo $1 QSTN brac foo ${v:?a$u{{{\}b} c ${v:?d{}} baz) 2>/dev/null || \
+ echo "$1 QSTN brac -> error"
+ }
+ tl_norm 1 -
+ tl_norm 2 ''
+ tl_norm 3 x
+ tl_paren 4 -
+ tl_paren 5 ''
+ tl_paren 6 x
+ tl_brace 7 -
+ tl_brace 8 ''
+ tl_brace 9 x
+expected-stdout:
+ 1 plus norm foo baz
+ 1 dash norm foo bar baz
+ 1 eqal norm foo bar baz
+ 1 qstn norm -> error
+ 1 PLUS norm foo baz
+ 1 DASH norm foo bar baz
+ 1 EQAL norm foo bar baz
+ 1 QSTN norm -> error
+ 2 plus norm foo bar baz
+ 2 dash norm foo baz
+ 2 eqal norm foo baz
+ 2 qstn norm foo baz
+ 2 PLUS norm foo baz
+ 2 DASH norm foo bar baz
+ 2 EQAL norm foo bar baz
+ 2 QSTN norm -> error
+ 3 plus norm foo bar baz
+ 3 dash norm foo x baz
+ 3 eqal norm foo x baz
+ 3 qstn norm foo x baz
+ 3 PLUS norm foo bar baz
+ 3 DASH norm foo x baz
+ 3 EQAL norm foo x baz
+ 3 QSTN norm foo x baz
+ 4 plus parn foo baz
+ 4 dash parn foo (bar) baz
+ 4 eqal parn foo (bar) baz
+ 4 qstn parn -> error
+ 4 PLUS parn foo baz
+ 4 DASH parn foo (bar) baz
+ 4 EQAL parn foo (bar) baz
+ 4 QSTN parn -> error
+ 5 plus parn foo (bar) baz
+ 5 dash parn foo baz
+ 5 eqal parn foo baz
+ 5 qstn parn foo baz
+ 5 PLUS parn foo baz
+ 5 DASH parn foo (bar) baz
+ 5 EQAL parn foo (bar) baz
+ 5 QSTN parn -> error
+ 6 plus parn foo (bar) baz
+ 6 dash parn foo x baz
+ 6 eqal parn foo x baz
+ 6 qstn parn foo x baz
+ 6 PLUS parn foo (bar) baz
+ 6 DASH parn foo x baz
+ 6 EQAL parn foo x baz
+ 6 QSTN parn foo x baz
+ 7 plus brac foo c } baz
+ 7 dash brac foo ax{{{}b c d{} baz
+ 7 eqal brac foo ax{{{}b c ax{{{}b} baz
+ 7 qstn brac -> error
+ 7 PLUS brac foo c } baz
+ 7 DASH brac foo ax{{{}b c d{} baz
+ 7 EQAL brac foo ax{{{}b c ax{{{}b} baz
+ 7 QSTN brac -> error
+ 8 plus brac foo ax{{{}b c d{} baz
+ 8 dash brac foo c } baz
+ 8 eqal brac foo c } baz
+ 8 qstn brac foo c } baz
+ 8 PLUS brac foo c } baz
+ 8 DASH brac foo ax{{{}b c d{} baz
+ 8 EQAL brac foo ax{{{}b c ax{{{}b} baz
+ 8 QSTN brac -> error
+ 9 plus brac foo ax{{{}b c d{} baz
+ 9 dash brac foo x c x} baz
+ 9 eqal brac foo x c x} baz
+ 9 qstn brac foo x c x} baz
+ 9 PLUS brac foo ax{{{}b c d{} baz
+ 9 DASH brac foo x c x} baz
+ 9 EQAL brac foo x c x} baz
+ 9 QSTN brac foo x c x} baz
+---
+name: expand-threecolons-dblq
+description:
+ Check for a particular thing that used to segfault
+stdin:
+ TEST=1234
+ echo "${TEST:1:2:3}"
+ echo $? but still living
+expected-stderr-pattern:
+ /bad substitution/
+expected-exit: 1
+---
+name: expand-threecolons-unq
+description:
+ Check for a particular thing that used to not error out
+stdin:
+ TEST=1234
+ echo ${TEST:1:2:3}
+ echo $? but still living
+expected-stderr-pattern:
+ /bad substitution/
+expected-exit: 1
+---
+name: expand-weird-1
+description:
+ Check corner case of trim expansion vs. $# vs. ${#var}
+stdin:
+ set 1 2 3 4 5 6 7 8 9 10 11
+ echo ${#} # value of $#
+ echo ${##} # length of $#
+ echo ${##1} # $# trimmed 1
+ set 1 2 3 4 5 6 7 8 9 10 11 12
+ echo ${##1}
+expected-stdout:
+ 11
+ 2
+ 1
+ 2
+---
+name: expand-weird-2
+description:
+ Check corner case of ${var?} vs. ${#var}
+stdin:
+ (exit 0)
+ echo $? = ${#?} .
+ (exit 111)
+ echo $? = ${#?} .
+expected-stdout:
+ 0 = 1 .
+ 111 = 3 .
+---
+name: expand-weird-3
+description:
+ Check that trimming works with positional parameters (Debian #48453)
+stdin:
+ A=9999-02
+ B=9999
+ echo 1=${A#$B?}.
+ set -- $A $B
+ echo 2=${1#$2?}.
+expected-stdout:
+ 1=02.
+ 2=02.
+---
+name: expand-number-1
+description:
+ Check that positional arguments do not overflow
+stdin:
+ echo "1 ${12345678901234567890} ."
+expected-stdout:
+ 1 .
+---
+name: eglob-bad-1
+description:
+ Check that globbing isn't done when glob has syntax error
+file-setup: file 644 "abcx"
+file-setup: file 644 "abcz"
+file-setup: file 644 "bbc"
+stdin:
+ echo !([*)*
+ echo +(a|b[)*
+expected-stdout:
+ !([*)*
+ +(a|b[)*
+---
+name: eglob-bad-2
+description:
+ Check that globbing isn't done when glob has syntax error
+ (AT&T ksh fails this test)
+file-setup: file 644 "abcx"
+file-setup: file 644 "abcz"
+file-setup: file 644 "bbc"
+stdin:
+ echo [a*(]*)z
+expected-stdout:
+ [a*(]*)z
+---
+name: eglob-infinite-plus
+description:
+ Check that shell doesn't go into infinite loop expanding +(...)
+ expressions.
+file-setup: file 644 "abc"
+time-limit: 3
+stdin:
+ echo +()c
+ echo +()x
+ echo +(*)c
+ echo +(*)x
+expected-stdout:
+ +()c
+ +()x
+ abc
+ +(*)x
+---
+name: eglob-subst-1
+description:
+ Check that eglobbing isn't done on substitution results
+file-setup: file 644 "abc"
+stdin:
+ x='@(*)'
+ echo $x
+expected-stdout:
+ @(*)
+---
+name: eglob-nomatch-1
+description:
+ Check that the pattern doesn't match
+stdin:
+ echo 1: no-file+(a|b)stuff
+ echo 2: no-file+(a*(c)|b)stuff
+ echo 3: no-file+((((c)))|b)stuff
+expected-stdout:
+ 1: no-file+(a|b)stuff
+ 2: no-file+(a*(c)|b)stuff
+ 3: no-file+((((c)))|b)stuff
+---
+name: eglob-match-1
+description:
+ Check that the pattern matches correctly
+file-setup: file 644 "abd"
+file-setup: file 644 "acd"
+file-setup: file 644 "abac"
+stdin:
+ echo 1: a+(b|c)d
+ echo 2: a!(@(b|B))d
+ echo 3: *(a(b|c)) # (...|...) can be used within X(..)
+ echo 4: a[b*(foo|bar)]d # patterns not special inside [...]
+expected-stdout:
+ 1: abd acd
+ 2: acd
+ 3: abac
+ 4: abd
+---
+name: eglob-case-1
+description:
+ Simple negation tests
+stdin:
+ case foo in !(foo|bar)) echo yes;; *) echo no;; esac
+ case bar in !(foo|bar)) echo yes;; *) echo no;; esac
+expected-stdout:
+ no
+ no
+---
+name: eglob-case-2
+description:
+ Simple kleene tests
+stdin:
+ case foo in *(a|b[)) echo yes;; *) echo no;; esac
+ case foo in *(a|b[)|f*) echo yes;; *) echo no;; esac
+ case '*(a|b[)' in *(a|b[)) echo yes;; *) echo no;; esac
+expected-stdout:
+ no
+ yes
+ yes
+---
+name: eglob-trim-1
+description:
+ Eglobbing in trim expressions...
+ (AT&T ksh fails this - docs say # matches shortest string, ## matches
+ longest...)
+stdin:
+ x=abcdef
+ echo 1: ${x#a|abc}
+ echo 2: ${x##a|abc}
+ echo 3: ${x%def|f}
+ echo 4: ${x%%f|def}
+expected-stdout:
+ 1: bcdef
+ 2: def
+ 3: abcde
+ 4: abc
+---
+name: eglob-trim-2
+description:
+ Check eglobbing works in trims...
+stdin:
+ x=abcdef
+ echo 1: ${x#*(a|b)cd}
+ echo 2: "${x#*(a|b)cd}"
+ echo 3: ${x#"*(a|b)cd"}
+ echo 4: ${x#a(b|c)}
+expected-stdout:
+ 1: ef
+ 2: ef
+ 3: abcdef
+ 4: cdef
+---
+name: eglob-trim-3
+description:
+ Check eglobbing works in trims, for Korn Shell
+ Ensure eglobbing does not work for reduced-feature /bin/sh
+stdin:
+ set +o sh
+ x=foobar
+ y=foobaz
+ z=fooba\?
+ echo "<${x%bar|baz},${y%bar|baz},${z%\?}>"
+ echo "<${x%ba(r|z)},${y%ba(r|z)}>"
+ set -o sh
+ echo "<${x%bar|baz},${y%bar|baz},${z%\?}>"
+ z='foo(bar'
+ echo "<${z%(*}>"
+expected-stdout:
+ <foo,foo,fooba>
+ <foo,foo>
+ <foobar,foobaz,fooba>
+ <foo>
+---
+name: eglob-substrpl-1
+description:
+ Check eglobbing works in substs... and they work at all
+stdin:
+ [[ -n $BASH_VERSION ]] && shopt -s extglob
+ x=1222321_ab/cde_b/c_1221
+ y=xyz
+ echo 1: ${x/2}
+ echo 2: ${x//2}
+ echo 3: ${x/+(2)}
+ echo 4: ${x//+(2)}
+ echo 5: ${x/2/4}
+ echo 6: ${x//2/4}
+ echo 7: ${x/+(2)/4}
+ echo 8: ${x//+(2)/4}
+ echo 9: ${x/b/c/e/f}
+ echo 10: ${x/b\/c/e/f}
+ echo 11: ${x/b\/c/e\/f}
+ echo 12: ${x/b\/c/e\\/f}
+ echo 13: ${x/b\\/c/e\\/f}
+ echo 14: ${x//b/c/e/f}
+ echo 15: ${x//b\/c/e/f}
+ echo 16: ${x//b\/c/e\/f}
+ echo 17: ${x//b\/c/e\\/f}
+ echo 18: ${x//b\\/c/e\\/f}
+ echo 19: ${x/b\/*\/c/x}
+ echo 20: ${x/\//.}
+ echo 21: ${x//\//.}
+ echo 22: ${x///.}
+ echo 23: ${x//#1/9}
+ echo 24: ${x//%1/9}
+ echo 25: ${x//\%1/9}
+ echo 26: ${x//\\%1/9}
+ echo 27: ${x//\a/9}
+ echo 28: ${x//\\a/9}
+ echo 29: ${x/2/$y}
+expected-stdout:
+ 1: 122321_ab/cde_b/c_1221
+ 2: 131_ab/cde_b/c_11
+ 3: 1321_ab/cde_b/c_1221
+ 4: 131_ab/cde_b/c_11
+ 5: 1422321_ab/cde_b/c_1221
+ 6: 1444341_ab/cde_b/c_1441
+ 7: 14321_ab/cde_b/c_1221
+ 8: 14341_ab/cde_b/c_141
+ 9: 1222321_ac/e/f/cde_b/c_1221
+ 10: 1222321_ae/fde_b/c_1221
+ 11: 1222321_ae/fde_b/c_1221
+ 12: 1222321_ae\/fde_b/c_1221
+ 13: 1222321_ab/cde_b/c_1221
+ 14: 1222321_ac/e/f/cde_c/e/f/c_1221
+ 15: 1222321_ae/fde_e/f_1221
+ 16: 1222321_ae/fde_e/f_1221
+ 17: 1222321_ae\/fde_e\/f_1221
+ 18: 1222321_ab/cde_b/c_1221
+ 19: 1222321_ax_1221
+ 20: 1222321_ab.cde_b/c_1221
+ 21: 1222321_ab.cde_b.c_1221
+ 22: 1222321_ab/cde_b/c_1221
+ 23: 9222321_ab/cde_b/c_1221
+ 24: 1222321_ab/cde_b/c_1229
+ 25: 1222321_ab/cde_b/c_1229
+ 26: 1222321_ab/cde_b/c_1221
+ 27: 1222321_9b/cde_b/c_1221
+ 28: 1222321_9b/cde_b/c_1221
+ 29: 1xyz22321_ab/cde_b/c_1221
+---
+name: eglob-substrpl-2
+description:
+ Check anchored substring replacement works, corner cases
+stdin:
+ foo=123
+ echo 1: ${foo/#/x}
+ echo 2: ${foo/%/x}
+ echo 3: ${foo/#/}
+ echo 4: ${foo/#}
+ echo 5: ${foo/%/}
+ echo 6: ${foo/%}
+expected-stdout:
+ 1: x123
+ 2: 123x
+ 3: 123
+ 4: 123
+ 5: 123
+ 6: 123
+---
+name: eglob-substrpl-3a
+description:
+ Check substring replacement works with variables and slashes, too
+stdin:
+ pfx=/home/user
+ wd=/home/user/tmp
+ echo "${wd/#$pfx/~}"
+ echo "${wd/#\$pfx/~}"
+ echo "${wd/#"$pfx"/~}"
+ echo "${wd/#'$pfx'/~}"
+ echo "${wd/#"\$pfx"/~}"
+ echo "${wd/#'\$pfx'/~}"
+expected-stdout:
+ ~/tmp
+ /home/user/tmp
+ ~/tmp
+ /home/user/tmp
+ /home/user/tmp
+ /home/user/tmp
+---
+name: eglob-substrpl-3b
+description:
+ More of this, bash fails it (bash4 passes)
+stdin:
+ pfx=/home/user
+ wd=/home/user/tmp
+ echo "${wd/#$(echo /home/user)/~}"
+ echo "${wd/#"$(echo /home/user)"/~}"
+ echo "${wd/#'$(echo /home/user)'/~}"
+expected-stdout:
+ ~/tmp
+ ~/tmp
+ /home/user/tmp
+---
+name: eglob-substrpl-3c
+description:
+ Even more weird cases
+stdin:
+ pfx=/home/user
+ wd='$pfx/tmp'
+ echo 1: ${wd/#$pfx/~}
+ echo 2: ${wd/#\$pfx/~}
+ echo 3: ${wd/#"$pfx"/~}
+ echo 4: ${wd/#'$pfx'/~}
+ echo 5: ${wd/#"\$pfx"/~}
+ echo 6: ${wd/#'\$pfx'/~}
+ ts='a/ba/b$tp$tp_a/b$tp_*(a/b)_*($tp)'
+ tp=a/b
+ tr=c/d
+ [[ -n $BASH_VERSION ]] && shopt -s extglob
+ echo 7: ${ts/a\/b/$tr}
+ echo 8: ${ts/a\/b/\$tr}
+ echo 9: ${ts/$tp/$tr}
+ echo 10: ${ts/\$tp/$tr}
+ echo 11: ${ts/\\$tp/$tr}
+ echo 12: ${ts/$tp/c/d}
+ echo 13: ${ts/$tp/c\/d}
+ echo 14: ${ts/$tp/c\\/d}
+ echo 15: ${ts/+(a\/b)/$tr}
+ echo 16: ${ts/+(a\/b)/\$tr}
+ echo 17: ${ts/+($tp)/$tr}
+ echo 18: ${ts/+($tp)/c/d}
+ echo 19: ${ts/+($tp)/c\/d}
+ echo 25: ${ts//a\/b/$tr}
+ echo 26: ${ts//a\/b/\$tr}
+ echo 27: ${ts//$tp/$tr}
+ echo 28: ${ts//$tp/c/d}
+ echo 29: ${ts//$tp/c\/d}
+ echo 30: ${ts//+(a\/b)/$tr}
+ echo 31: ${ts//+(a\/b)/\$tr}
+ echo 32: ${ts//+($tp)/$tr}
+ echo 33: ${ts//+($tp)/c/d}
+ echo 34: ${ts//+($tp)/c\/d}
+ tp="+($tp)"
+ echo 40: ${ts/$tp/$tr}
+ echo 41: ${ts//$tp/$tr}
+expected-stdout:
+ 1: $pfx/tmp
+ 2: ~/tmp
+ 3: $pfx/tmp
+ 4: ~/tmp
+ 5: ~/tmp
+ 6: ~/tmp
+ 7: c/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 8: $tra/b$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 9: c/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 10: a/ba/bc/d$tp_a/b$tp_*(a/b)_*($tp)
+ 11: c/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 12: c/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 13: c/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 14: c\/da/b$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 15: c/d$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 16: $tr$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 17: c/d$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 18: c/d$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 19: c/d$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 25: c/dc/d$tp$tp_c/d$tp_*(c/d)_*($tp)
+ 26: $tr$tr$tp$tp_$tr$tp_*($tr)_*($tp)
+ 27: c/dc/d$tp$tp_c/d$tp_*(c/d)_*($tp)
+ 28: c/dc/d$tp$tp_c/d$tp_*(c/d)_*($tp)
+ 29: c/dc/d$tp$tp_c/d$tp_*(c/d)_*($tp)
+ 30: c/d$tp$tp_c/d$tp_*(c/d)_*($tp)
+ 31: $tr$tp$tp_$tr$tp_*($tr)_*($tp)
+ 32: c/d$tp$tp_c/d$tp_*(c/d)_*($tp)
+ 33: c/d$tp$tp_c/d$tp_*(c/d)_*($tp)
+ 34: c/d$tp$tp_c/d$tp_*(c/d)_*($tp)
+ 40: a/ba/b$tp$tp_a/b$tp_*(a/b)_*($tp)
+ 41: a/ba/b$tp$tp_a/b$tp_*(a/b)_*($tp)
+# This is what GNU bash does:
+# 40: c/d$tp$tp_a/b$tp_*(a/b)_*($tp)
+# 41: c/d$tp$tp_c/d$tp_*(c/d)_*($tp)
+---
+name: eglob-utf8-1
+description:
+ UTF-8 mode differences for eglobbing
+stdin:
+ s=blöd
+ set +U
+ print 1: ${s%???} .
+ print 2: ${s/b???d/x} .
+ set -U
+ print 3: ${s%???} .
+ print 4: ${s/b??d/x} .
+ x=nö
+ print 5: ${x%?} ${x%%?} .
+ x=äh
+ print 6: ${x#?} ${x##?} .
+ x=\x81\x82
+ print 7: ${x%?} ${x%%?} .
+ x=mä\x80
+ print 8: ${x%?} ${x%%?} .
+ x=何
+ print 9: ${x%?} ${x%%?} .
+expected-stdout:
+ 1: bl .
+ 2: x .
+ 3: b .
+ 4: x .
+ 5: n n .
+ 6: h h .
+ 7: \x81 \x81 .
+ 8: mä mä .
+ 9: .
+---
+name: glob-bad-1
+description:
+ Check that globbing isn't done when glob has syntax error
+file-setup: dir 755 "[x"
+file-setup: file 644 "[x/foo"
+stdin:
+ echo [*
+ echo *[x
+ echo [x/*
+expected-stdout:
+ [*
+ *[x
+ [x/foo
+---
+name: glob-bad-2
+description:
+ Check that symbolic links aren't stat()'d
+# breaks on FreeMiNT (cannot unlink dangling symlinks)
+# breaks on MSYS (does not support symlinks)
+# breaks on Dell UNIX 4.0 R2.2 (SVR4) where unlink also fails
+category: !os:mint,!os:msys,!os:svr4.0,!nosymlink
+file-setup: dir 755 "dir"
+file-setup: symlink 644 "dir/abc"
+ non-existent-file
+stdin:
+ echo d*/*
+ echo d*/abc
+expected-stdout:
+ dir/abc
+ dir/abc
+---
+name: glob-range-1
+description:
+ Test range matching
+file-setup: file 644 ".bc"
+file-setup: file 644 "abc"
+file-setup: file 644 "bbc"
+file-setup: file 644 "cbc"
+file-setup: file 644 "-bc"
+stdin:
+ echo [ab-]*
+ echo [-ab]*
+ echo [!-ab]*
+ echo [!ab]*
+ echo []ab]*
+ :>'./!bc'
+ :>'./^bc'
+ echo [^ab]*
+ echo [!ab]*
+expected-stdout:
+ -bc abc bbc
+ -bc abc bbc
+ cbc
+ -bc cbc
+ abc bbc
+ ^bc abc bbc
+ !bc -bc ^bc cbc
+---
+name: glob-range-2
+description:
+ Test range matching
+ (AT&T ksh fails this; POSIX says invalid)
+file-setup: file 644 "abc"
+stdin:
+ echo [a--]*
+expected-stdout:
+ [a--]*
+---
+name: glob-range-3
+description:
+ Check that globbing matches the right things...
+# breaks on Mac OSX (HFS+ non-standard Unicode canonical decomposition)
+# breaks on Cygwin 1.7 (files are now UTF-16 or something)
+# breaks on QNX 6.4.1 (says RT)
+category: !os:cygwin,!os:darwin,!os:msys,!os:nto
+need-pass: no
+file-setup: file 644 "a\xC2c"
+stdin:
+ echo a[\xC1-\xDA]*
+expected-stdout:
+ a\xC2c
+---
+name: glob-range-4
+description:
+ Results unspecified according to POSIX
+file-setup: file 644 ".bc"
+stdin:
+ echo [a.]*
+expected-stdout:
+ [a.]*
+---
+name: glob-range-5
+description:
+ Results unspecified according to POSIX
+ (AT&T ksh treats this like [a-cc-e]*)
+file-setup: file 644 "abc"
+file-setup: file 644 "bbc"
+file-setup: file 644 "cbc"
+file-setup: file 644 "dbc"
+file-setup: file 644 "ebc"
+file-setup: file 644 "-bc"
+stdin:
+ echo [a-c-e]*
+expected-stdout:
+ -bc abc bbc cbc ebc
+---
+name: glob-trim-1
+description:
+ Check against a regression from fixing IFS-subst-2
+stdin:
+ x='#foo'
+ print -r "before='$x'"
+ x=${x%%#*}
+ print -r "after ='$x'"
+expected-stdout:
+ before='#foo'
+ after =''
+---
+name: heredoc-1
+description:
+ Check ordering/content of redundent here documents.
+stdin:
+ cat << EOF1 << EOF2
+ hi
+ EOF1
+ there
+ EOF2
+expected-stdout:
+ there
+---
+name: heredoc-2
+description:
+ Check quoted here-doc is protected.
+stdin:
+ a=foo
+ cat << 'EOF'
+ hi\
+ there$a
+ stuff
+ EO\
+ F
+ EOF
+expected-stdout:
+ hi\
+ there$a
+ stuff
+ EO\
+ F
+---
+name: heredoc-3
+description:
+ Check that newline isn't needed after heredoc-delimiter marker.
+stdin: !
+ cat << EOF
+ hi
+ there
+ EOF
+expected-stdout:
+ hi
+ there
+---
+name: heredoc-4
+description:
+ Check that an error occurs if the heredoc-delimiter is missing.
+stdin: !
+ cat << EOF
+ hi
+ there
+expected-exit: e > 0
+expected-stderr-pattern: /.*/
+---
+name: heredoc-5
+description:
+ Check that backslash quotes a $, ` and \ and kills a \newline
+stdin:
+ a=BAD
+ b=ok
+ cat << EOF
+ h\${a}i
+ h\\${b}i
+ th\`echo not-run\`ere
+ th\\`echo is-run`ere
+ fol\\ks
+ more\\
+ last \
+ line
+ EOF
+expected-stdout:
+ h${a}i
+ h\oki
+ th`echo not-run`ere
+ th\is-runere
+ fol\ks
+ more\
+ last line
+---
+name: heredoc-6
+description:
+ Check that \newline in initial here-delim word doesn't imply
+ a quoted here-doc.
+stdin:
+ a=i
+ cat << EO\
+ F
+ h$a
+ there
+ EOF
+expected-stdout:
+ hi
+ there
+---
+name: heredoc-7
+description:
+ Check that double quoted $ expressions in here delimiters are
+ not expanded and match the delimiter.
+ POSIX says only quote removal is applied to the delimiter.
+stdin:
+ a=b
+ cat << "E$a"
+ hi
+ h$a
+ hb
+ E$a
+ echo done
+expected-stdout:
+ hi
+ h$a
+ hb
+ done
+---
+name: heredoc-8
+description:
+ Check that double quoted escaped $ expressions in here
+ delimiters are not expanded and match the delimiter.
+ POSIX says only quote removal is applied to the delimiter
+ (\ counts as a quote).
+stdin:
+ a=b
+ cat << "E\$a"
+ hi
+ h$a
+ h\$a
+ hb
+ h\b
+ E$a
+ echo done
+expected-stdout:
+ hi
+ h$a
+ h\$a
+ hb
+ h\b
+ done
+---
+name: heredoc-9a
+description:
+ Check that here strings work.
+stdin:
+ bar="bar
+ baz"
+ tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<foo
+ "$__progname" -c "tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<foo"
+ tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<"$bar"
+ tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<'$bar'
+ tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<\$bar
+ tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<-foo
+ tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<"$(echo "foo bar")"
+expected-stdout:
+ sbb
+ sbb
+ one
+ onm
+ $one
+ $one
+ -sbb
+ sbb one
+---
+name: heredoc-9b
+description:
+ Check that a corner case of here strings works like bash
+stdin:
+ fnord=42
+ bar="bar
+ \$fnord baz"
+ tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<$bar
+expected-stdout:
+ one $sabeq onm
+category: bash
+---
+name: heredoc-9c
+description:
+ Check that a corner case of here strings works like ksh93, zsh
+stdin:
+ fnord=42
+ bar="bar
+ \$fnord baz"
+ tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<<$bar
+expected-stdout:
+ one
+ $sabeq onm
+---
+name: heredoc-9d
+description:
+ Check another corner case of here strings
+stdin:
+ tr abcdefghijklmnopqrstuvwxyz nopqrstuvwxyzabcdefghijklm <<< bar
+expected-stdout:
+ one
+---
+name: heredoc-9e
+description:
+ Check here string related regression with multiple iops
+stdin:
+ echo $(tr r z <<<'bar' 2>/dev/null)
+expected-stdout:
+ baz
+---
+name: heredoc-10
+description:
+ Check direct here document assignment
+stdin:
+ x=u
+ va=<<EOF
+ =a $x \x40=
+ EOF
+ vb=<<'EOF'
+ =b $x \x40=
+ EOF
+ function foo {
+ vc=<<-EOF
+ =c $x \x40=
+ EOF
+ }
+ fnd=$(typeset -f foo)
+ print -r -- "$fnd"
+ function foo {
+ echo blub
+ }
+ foo
+ eval "$fnd"
+ foo
+ # rather nonsensical, but…
+ vd=<<<"=d $x \x40="
+ ve=<<<'=e $x \x40='
+ vf=<<<$'=f $x \x40='
+ # now check
+ print -r -- "| va={$va} vb={$vb} vc={$vc} vd={$vd} ve={$ve} vf={$vf} |"
+expected-stdout:
+ function foo {
+ vc=<<-EOF
+ =c $x \x40=
+ EOF
+
+ }
+ blub
+ | va={=a u \x40=
+ } vb={=b $x \x40=
+ } vc={=c u \x40=
+ } vd={=d u \x40=
+ } ve={=e $x \x40=
+ } vf={=f $x @=
+ } |
+---
+name: heredoc-11
+description:
+ Check here documents with no or empty delimiter
+stdin:
+ x=u
+ va=<<
+ =a $x \x40=
+ <<
+ vb=<<''
+ =b $x \x40=
+
+ function foo {
+ vc=<<-
+ =c $x \x40=
+ <<
+ vd=<<-''
+ =d $x \x40=
+
+ }
+ fnd=$(typeset -f foo)
+ print -r -- "$fnd"
+ function foo {
+ echo blub
+ }
+ foo
+ eval "$fnd"
+ foo
+ print -r -- "| va={$va} vb={$vb} vc={$vc} vd={$vd} |"
+expected-stdout:
+ function foo {
+ vc=<<-
+ =c $x \x40=
+ <<
+
+ vd=<<-""
+ =d $x \x40=
+
+
+ }
+ blub
+ | va={=a u \x40=
+ } vb={=b $x \x40=
+ } vc={=c u \x40=
+ } vd={=d $x \x40=
+ } |
+---
+name: heredoc-comsub-1
+description:
+ Tests for here documents in COMSUB, taken from Austin ML
+stdin:
+ text=$(cat <<EOF
+ here is the text
+ EOF)
+ echo = $text =
+expected-stdout:
+ = here is the text =
+---
+name: heredoc-comsub-2
+description:
+ Tests for here documents in COMSUB, taken from Austin ML
+stdin:
+ unbalanced=$(cat <<EOF
+ this paren ) is a problem
+ EOF)
+ echo = $unbalanced =
+expected-stdout:
+ = this paren ) is a problem =
+---
+name: heredoc-comsub-3
+description:
+ Tests for here documents in COMSUB, taken from Austin ML
+stdin:
+ balanced=$(cat <<EOF
+ these parens ( ) are not a problem
+ EOF)
+ echo = $balanced =
+expected-stdout:
+ = these parens ( ) are not a problem =
+---
+name: heredoc-comsub-4
+description:
+ Tests for here documents in COMSUB, taken from Austin ML
+stdin:
+ balanced=$(cat <<EOF
+ these parens \( ) are a problem
+ EOF)
+ echo = $balanced =
+expected-stdout:
+ = these parens \( ) are a problem =
+---
+name: heredoc-subshell-1
+description:
+ Tests for here documents in subshells, taken from Austin ML
+stdin:
+ (cat <<EOF
+ some text
+ EOF)
+ echo end
+expected-stdout:
+ some text
+ end
+---
+name: heredoc-subshell-2
+description:
+ Tests for here documents in subshells, taken from Austin ML
+stdin:
+ (cat <<EOF
+ some text
+ EOF
+ )
+ echo end
+expected-stdout:
+ some text
+ end
+---
+name: heredoc-subshell-3
+description:
+ Tests for here documents in subshells, taken from Austin ML
+stdin:
+ (cat <<EOF; )
+ some text
+ EOF
+ echo end
+expected-stdout:
+ some text
+ end
+---
+name: heredoc-weird-1
+description:
+ Tests for here documents, taken from Austin ML
+ Documents current state in mksh, *NOT* necessarily correct!
+stdin:
+ cat <<END
+ hello
+ END\
+ END
+ END
+ echo end
+expected-stdout:
+ hello
+ ENDEND
+ end
+---
+name: heredoc-weird-2
+description:
+ Tests for here documents, taken from Austin ML
+stdin:
+ cat <<' END '
+ hello
+ END
+ echo end
+expected-stdout:
+ hello
+ end
+---
+name: heredoc-weird-4
+description:
+ Tests for here documents, taken from Austin ML
+ Documents current state in mksh, *NOT* necessarily correct!
+stdin:
+ cat <<END
+ hello\
+ END
+ END
+ echo end
+expected-stdout:
+ helloEND
+ end
+---
+name: heredoc-weird-5
+description:
+ Tests for here documents, taken from Austin ML
+ Documents current state in mksh, *NOT* necessarily correct!
+stdin:
+ cat <<END
+ hello
+ \END
+ END
+ echo end
+expected-stdout:
+ hello
+ \END
+ end
+---
+name: heredoc-tmpfile-1
+description:
+ Check that heredoc temp files aren't removed too soon or too late.
+ Heredoc in simple command.
+stdin:
+ TMPDIR=$PWD
+ eval '
+ cat <<- EOF
+ hi
+ EOF
+ for i in a b ; do
+ cat <<- EOF
+ more
+ EOF
+ done
+ ' &
+ sleep 1
+ echo Left overs: *
+expected-stdout:
+ hi
+ more
+ more
+ Left overs: *
+---
+name: heredoc-tmpfile-2
+description:
+ Check that heredoc temp files aren't removed too soon or too late.
+ Heredoc in function, multiple calls to function.
+stdin:
+ TMPDIR=$PWD
+ eval '
+ foo() {
+ cat <<- EOF
+ hi
+ EOF
+ }
+ foo
+ foo
+ ' &
+ sleep 1
+ echo Left overs: *
+expected-stdout:
+ hi
+ hi
+ Left overs: *
+---
+name: heredoc-tmpfile-3
+description:
+ Check that heredoc temp files aren't removed too soon or too late.
+ Heredoc in function in loop, multiple calls to function.
+stdin:
+ TMPDIR=$PWD
+ eval '
+ foo() {
+ cat <<- EOF
+ hi
+ EOF
+ }
+ for i in a b; do
+ foo
+ foo() {
+ cat <<- EOF
+ folks $i
+ EOF
+ }
+ done
+ foo
+ ' &
+ sleep 1
+ echo Left overs: *
+expected-stdout:
+ hi
+ folks b
+ folks b
+ Left overs: *
+---
+name: heredoc-tmpfile-4
+description:
+ Check that heredoc temp files aren't removed too soon or too late.
+ Backgrounded simple command with here doc
+stdin:
+ TMPDIR=$PWD
+ eval '
+ cat <<- EOF &
+ hi
+ EOF
+ ' &
+ sleep 1
+ echo Left overs: *
+expected-stdout:
+ hi
+ Left overs: *
+---
+name: heredoc-tmpfile-5
+description:
+ Check that heredoc temp files aren't removed too soon or too late.
+ Backgrounded subshell command with here doc
+stdin:
+ TMPDIR=$PWD
+ eval '
+ (
+ sleep 1 # so parent exits
+ echo A
+ cat <<- EOF
+ hi
+ EOF
+ echo B
+ ) &
+ ' &
+ sleep 2
+ echo Left overs: *
+expected-stdout:
+ A
+ hi
+ B
+ Left overs: *
+---
+name: heredoc-tmpfile-6
+description:
+ Check that heredoc temp files aren't removed too soon or too late.
+ Heredoc in pipeline.
+stdin:
+ TMPDIR=$PWD
+ eval '
+ cat <<- EOF | sed "s/hi/HI/"
+ hi
+ EOF
+ ' &
+ sleep 1
+ echo Left overs: *
+expected-stdout:
+ HI
+ Left overs: *
+---
+name: heredoc-tmpfile-7
+description:
+ Check that heredoc temp files aren't removed too soon or too late.
+ Heredoc in backgrounded pipeline.
+stdin:
+ TMPDIR=$PWD
+ eval '
+ cat <<- EOF | sed 's/hi/HI/' &
+ hi
+ EOF
+ ' &
+ sleep 1
+ echo Left overs: *
+expected-stdout:
+ HI
+ Left overs: *
+---
+name: heredoc-tmpfile-8
+description:
+ Check that heredoc temp files aren't removed too soon or too
+ late. Heredoc in function, backgrounded call to function.
+ This check can fail on slow machines (<100 MHz), or Cygwin,
+ that's normal.
+need-pass: no
+stdin:
+ TMPDIR=$PWD
+ # Background eval so main shell doesn't do parsing
+ eval '
+ foo() {
+ cat <<- EOF
+ hi
+ EOF
+ }
+ foo
+ # sleep so eval can die
+ (sleep 1; foo) &
+ (sleep 1; foo) &
+ foo
+ ' &
+ sleep 2
+ echo Left overs: *
+expected-stdout:
+ hi
+ hi
+ hi
+ hi
+ Left overs: *
+---
+name: heredoc-quoting-unsubst
+description:
+ Check for correct handling of quoted characters in
+ here documents without substitution (marker is quoted).
+stdin:
+ foo=bar
+ cat <<-'EOF'
+ x " \" \ \\ $ \$ `echo baz` \`echo baz\` $foo \$foo x
+ EOF
+expected-stdout:
+ x " \" \ \\ $ \$ `echo baz` \`echo baz\` $foo \$foo x
+---
+name: heredoc-quoting-subst
+description:
+ Check for correct handling of quoted characters in
+ here documents with substitution (marker is not quoted).
+stdin:
+ foo=bar
+ cat <<-EOF
+ x " \" \ \\ $ \$ `echo baz` \`echo baz\` $foo \$foo x
+ EOF
+expected-stdout:
+ x " \" \ \ $ $ baz `echo baz` bar $foo x
+---
+name: single-quotes-in-braces
+description:
+ Check that single quotes inside unquoted {} are treated as quotes
+stdin:
+ foo=1
+ echo ${foo:+'blah $foo'}
+expected-stdout:
+ blah $foo
+---
+name: single-quotes-in-quoted-braces
+description:
+ Check that single quotes inside quoted {} are treated as
+ normal char
+stdin:
+ foo=1
+ echo "${foo:+'blah $foo'}"
+expected-stdout:
+ 'blah 1'
+---
+name: single-quotes-in-braces-nested
+description:
+ Check that single quotes inside unquoted {} are treated as quotes,
+ even if that's inside a double-quoted command expansion
+stdin:
+ foo=1
+ echo "$( echo ${foo:+'blah $foo'})"
+expected-stdout:
+ blah $foo
+---
+name: single-quotes-in-brace-pattern
+description:
+ Check that single quotes inside {} pattern are treated as quotes
+stdin:
+ foo=1234
+ echo ${foo%'2'*} "${foo%'2'*}" ${foo%2'*'} "${foo%2'*'}"
+expected-stdout:
+ 1 1 1234 1234
+---
+name: single-quotes-in-heredoc-braces
+description:
+ Check that single quotes inside {} in heredoc are treated
+ as normal char
+stdin:
+ foo=1
+ cat <<EOM
+ ${foo:+'blah $foo'}
+ EOM
+expected-stdout:
+ 'blah 1'
+---
+name: single-quotes-in-nested-braces
+description:
+ Check that single quotes inside nested unquoted {} are
+ treated as quotes
+stdin:
+ foo=1
+ echo ${foo:+${foo:+'blah $foo'}}
+expected-stdout:
+ blah $foo
+---
+name: single-quotes-in-nested-quoted-braces
+description:
+ Check that single quotes inside nested quoted {} are treated
+ as normal char
+stdin:
+ foo=1
+ echo "${foo:+${foo:+'blah $foo'}}"
+expected-stdout:
+ 'blah 1'
+---
+name: single-quotes-in-nested-braces-nested
+description:
+ Check that single quotes inside nested unquoted {} are treated
+ as quotes, even if that's inside a double-quoted command expansion
+stdin:
+ foo=1
+ echo "$( echo ${foo:+${foo:+'blah $foo'}})"
+expected-stdout:
+ blah $foo
+---
+name: single-quotes-in-nested-brace-pattern
+description:
+ Check that single quotes inside nested {} pattern are treated as quotes
+stdin:
+ foo=1234
+ echo ${foo:+${foo%'2'*}} "${foo:+${foo%'2'*}}" ${foo:+${foo%2'*'}} "${foo:+${foo%2'*'}}"
+expected-stdout:
+ 1 1 1234 1234
+---
+name: single-quotes-in-heredoc-nested-braces
+description:
+ Check that single quotes inside nested {} in heredoc are treated
+ as normal char
+stdin:
+ foo=1
+ cat <<EOM
+ ${foo:+${foo:+'blah $foo'}}
+ EOM
+expected-stdout:
+ 'blah 1'
+---
+name: history-basic
+description:
+ See if we can test history at all
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo hi
+ fc -l
+expected-stdout:
+ hi
+ 1 echo hi
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-dups
+description:
+ Verify duplicates and spaces are not entered
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo hi
+ echo yo
+ echo hi
+ fc -l
+expected-stdout:
+ hi
+ yo
+ hi
+ 1 echo hi
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-unlink
+description:
+ Check if broken HISTFILEs do not cause trouble
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=foo/hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+file-setup: dir 755 "foo"
+file-setup: file 644 "foo/hist.file"
+ sometext
+time-limit: 5
+perl-setup: chmod(0555, "foo");
+stdin:
+ echo hi
+ fc -l
+ chmod 0755 foo
+expected-stdout:
+ hi
+ 1 echo hi
+expected-stderr-pattern:
+ /(.*can't unlink HISTFILE.*\n)?X*$/
+---
+name: history-e-minus-1
+description:
+ Check if more recent command is executed
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo hi
+ echo there
+ fc -e -
+expected-stdout:
+ hi
+ there
+ there
+expected-stderr-pattern:
+ /^X*echo there\nX*$/
+---
+name: history-e-minus-2
+description:
+ Check that repeated command is printed before command
+ is re-executed.
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ exec 2>&1
+ echo hi
+ echo there
+ fc -e -
+expected-stdout-pattern:
+ /X*hi\nX*there\nX*echo there\nthere\nX*/
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-e-minus-3
+description:
+ fc -e - fails when there is no history
+ (ksh93 has a bug that causes this to fail)
+ (ksh88 loops on this)
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ fc -e -
+ echo ok
+expected-stdout:
+ ok
+expected-stderr-pattern:
+ /^X*.*:.*history.*\nX*$/
+---
+name: history-e-minus-4
+description:
+ Check if "fc -e -" command output goes to stdout.
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo abc
+ fc -e - | (read x; echo "A $x")
+ echo ok
+expected-stdout:
+ abc
+ A abc
+ ok
+expected-stderr-pattern:
+ /^X*echo abc\nX*/
+---
+name: history-e-minus-5
+description:
+ fc is replaced in history by new command.
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo abc def
+ echo ghi jkl
+ :
+ fc -e - echo
+ fc -l 2 5
+expected-stdout:
+ abc def
+ ghi jkl
+ ghi jkl
+ 2 echo ghi jkl
+ 3 :
+ 4 echo ghi jkl
+ 5 fc -l 2 5
+expected-stderr-pattern:
+ /^X*echo ghi jkl\nX*$/
+---
+name: history-list-1
+description:
+ List lists correct range
+ (ksh88 fails 'cause it lists the fc command)
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2
+ echo line 3
+ fc -l -- -2
+expected-stdout:
+ line 1
+ line 2
+ line 3
+ 2 echo line 2
+ 3 echo line 3
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-list-2
+description:
+ Lists oldest history if given pre-historic number
+ (ksh93 has a bug that causes this to fail)
+ (ksh88 fails 'cause it lists the fc command)
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2
+ echo line 3
+ fc -l -- -40
+expected-stdout:
+ line 1
+ line 2
+ line 3
+ 1 echo line 1
+ 2 echo line 2
+ 3 echo line 3
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-list-3
+description:
+ Can give number 'options' to fc
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2
+ echo line 3
+ echo line 4
+ fc -l -3 -2
+expected-stdout:
+ line 1
+ line 2
+ line 3
+ line 4
+ 2 echo line 2
+ 3 echo line 3
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-list-4
+description:
+ -1 refers to previous command
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2
+ echo line 3
+ echo line 4
+ fc -l -1 -1
+expected-stdout:
+ line 1
+ line 2
+ line 3
+ line 4
+ 4 echo line 4
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-list-5
+description:
+ List command stays in history
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2
+ echo line 3
+ echo line 4
+ fc -l -1 -1
+ fc -l -2 -1
+expected-stdout:
+ line 1
+ line 2
+ line 3
+ line 4
+ 4 echo line 4
+ 4 echo line 4
+ 5 fc -l -1 -1
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-list-6
+description:
+ HISTSIZE limits about of history kept.
+ (ksh88 fails 'cause it lists the fc command)
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!HISTSIZE=3!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2
+ echo line 3
+ echo line 4
+ echo line 5
+ fc -l
+expected-stdout:
+ line 1
+ line 2
+ line 3
+ line 4
+ line 5
+ 4 echo line 4
+ 5 echo line 5
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-list-7
+description:
+ fc allows too old/new errors in range specification
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!HISTSIZE=3!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2
+ echo line 3
+ echo line 4
+ echo line 5
+ fc -l 1 30
+expected-stdout:
+ line 1
+ line 2
+ line 3
+ line 4
+ line 5
+ 4 echo line 4
+ 5 echo line 5
+ 6 fc -l 1 30
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-list-r-1
+description:
+ test -r flag in history
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2
+ echo line 3
+ echo line 4
+ echo line 5
+ fc -l -r 2 4
+expected-stdout:
+ line 1
+ line 2
+ line 3
+ line 4
+ line 5
+ 4 echo line 4
+ 3 echo line 3
+ 2 echo line 2
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-list-r-2
+description:
+ If first is newer than last, -r is implied.
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2
+ echo line 3
+ echo line 4
+ echo line 5
+ fc -l 4 2
+expected-stdout:
+ line 1
+ line 2
+ line 3
+ line 4
+ line 5
+ 4 echo line 4
+ 3 echo line 3
+ 2 echo line 2
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-list-r-3
+description:
+ If first is newer than last, -r is cancelled.
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2
+ echo line 3
+ echo line 4
+ echo line 5
+ fc -l -r 4 2
+expected-stdout:
+ line 1
+ line 2
+ line 3
+ line 4
+ line 5
+ 2 echo line 2
+ 3 echo line 3
+ 4 echo line 4
+expected-stderr-pattern:
+ /^X*$/
+---
+name: history-subst-1
+description:
+ Basic substitution
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo abc def
+ echo ghi jkl
+ fc -e - abc=AB 'echo a'
+expected-stdout:
+ abc def
+ ghi jkl
+ AB def
+expected-stderr-pattern:
+ /^X*echo AB def\nX*$/
+---
+name: history-subst-2
+description:
+ Does subst find previous command?
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo abc def
+ echo ghi jkl
+ fc -e - jkl=XYZQRT 'echo g'
+expected-stdout:
+ abc def
+ ghi jkl
+ ghi XYZQRT
+expected-stderr-pattern:
+ /^X*echo ghi XYZQRT\nX*$/
+---
+name: history-subst-3
+description:
+ Does subst find previous command when no arguments given
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo abc def
+ echo ghi jkl
+ fc -e - jkl=XYZQRT
+expected-stdout:
+ abc def
+ ghi jkl
+ ghi XYZQRT
+expected-stderr-pattern:
+ /^X*echo ghi XYZQRT\nX*$/
+---
+name: history-subst-4
+description:
+ Global substitutions work
+ (ksh88 and ksh93 do not have -g option)
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo abc def asjj sadjhasdjh asdjhasd
+ fc -e - -g a=FooBAR
+expected-stdout:
+ abc def asjj sadjhasdjh asdjhasd
+ FooBARbc def FooBARsjj sFooBARdjhFooBARsdjh FooBARsdjhFooBARsd
+expected-stderr-pattern:
+ /^X*echo FooBARbc def FooBARsjj sFooBARdjhFooBARsdjh FooBARsdjhFooBARsd\nX*$/
+---
+name: history-subst-5
+description:
+ Make sure searches don't find current (fc) command
+ (ksh88/ksh93 don't have the ? prefix thing so they fail this test)
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo abc def
+ echo ghi jkl
+ fc -e - abc=AB \?abc
+expected-stdout:
+ abc def
+ ghi jkl
+ AB def
+expected-stderr-pattern:
+ /^X*echo AB def\nX*$/
+---
+name: history-ed-1-old
+description:
+ Basic (ed) editing works (assumes you have generic ed editor
+ that prints no prompts). This is for oldish ed(1) which write
+ the character count to stdout.
+category: stdout-ed
+need-ctty: yes
+need-pass: no
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo abc def
+ fc echo
+ s/abc/FOOBAR/
+ w
+ q
+expected-stdout:
+ abc def
+ 13
+ 16
+ FOOBAR def
+expected-stderr-pattern:
+ /^X*echo FOOBAR def\nX*$/
+---
+name: history-ed-2-old
+description:
+ Correct command is edited when number given
+category: stdout-ed
+need-ctty: yes
+need-pass: no
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2 is here
+ echo line 3
+ echo line 4
+ fc 2
+ s/is here/is changed/
+ w
+ q
+expected-stdout:
+ line 1
+ line 2 is here
+ line 3
+ line 4
+ 20
+ 23
+ line 2 is changed
+expected-stderr-pattern:
+ /^X*echo line 2 is changed\nX*$/
+---
+name: history-ed-3-old
+description:
+ Newly created multi line commands show up as single command
+ in history.
+ (NOTE: adjusted for COMPLEX HISTORY compile time option)
+ (ksh88 fails 'cause it lists the fc command)
+category: stdout-ed
+need-ctty: yes
+need-pass: no
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo abc def
+ fc echo
+ s/abc/FOOBAR/
+ $a
+ echo a new line
+ .
+ w
+ q
+ fc -l
+expected-stdout:
+ abc def
+ 13
+ 32
+ FOOBAR def
+ a new line
+ 1 echo abc def
+ 2 echo FOOBAR def
+ 3 echo a new line
+expected-stderr-pattern:
+ /^X*echo FOOBAR def\necho a new line\nX*$/
+---
+name: history-ed-1
+description:
+ Basic (ed) editing works (assumes you have generic ed editor
+ that prints no prompts). This is for newish ed(1) and stderr.
+category: !no-stderr-ed
+need-ctty: yes
+need-pass: no
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo abc def
+ fc echo
+ s/abc/FOOBAR/
+ w
+ q
+expected-stdout:
+ abc def
+ FOOBAR def
+expected-stderr-pattern:
+ /^X*13\n16\necho FOOBAR def\nX*$/
+---
+name: history-ed-2
+description:
+ Correct command is edited when number given
+category: !no-stderr-ed
+need-ctty: yes
+need-pass: no
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo line 1
+ echo line 2 is here
+ echo line 3
+ echo line 4
+ fc 2
+ s/is here/is changed/
+ w
+ q
+expected-stdout:
+ line 1
+ line 2 is here
+ line 3
+ line 4
+ line 2 is changed
+expected-stderr-pattern:
+ /^X*20\n23\necho line 2 is changed\nX*$/
+---
+name: history-ed-3
+description:
+ Newly created multi line commands show up as single command
+ in history.
+category: !no-stderr-ed
+need-ctty: yes
+need-pass: no
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ echo abc def
+ fc echo
+ s/abc/FOOBAR/
+ $a
+ echo a new line
+ .
+ w
+ q
+ fc -l
+expected-stdout:
+ abc def
+ FOOBAR def
+ a new line
+ 1 echo abc def
+ 2 echo FOOBAR def
+ 3 echo a new line
+expected-stderr-pattern:
+ /^X*13\n32\necho FOOBAR def\necho a new line\nX*$/
+---
+name: IFS-space-1
+description:
+ Simple test, default IFS
+stdin:
+ showargs() { for i; do echo -n " <$i>"; done; echo; }
+ set -- A B C
+ showargs 1 $*
+ showargs 2 "$*"
+ showargs 3 $@
+ showargs 4 "$@"
+expected-stdout:
+ <1> <A> <B> <C>
+ <2> <A B C>
+ <3> <A> <B> <C>
+ <4> <A> <B> <C>
+---
+name: IFS-colon-1
+description:
+ Simple test, IFS=:
+stdin:
+ showargs() { for i; do echo -n " <$i>"; done; echo; }
+ IFS=:
+ set -- A B C
+ showargs 1 $*
+ showargs 2 "$*"
+ showargs 3 $@
+ showargs 4 "$@"
+expected-stdout:
+ <1> <A> <B> <C>
+ <2> <A:B:C>
+ <3> <A> <B> <C>
+ <4> <A> <B> <C>
+---
+name: IFS-null-1
+description:
+ Simple test, IFS=""
+stdin:
+ showargs() { for i; do echo -n " <$i>"; done; echo; }
+ IFS=""
+ set -- A B C
+ showargs 1 $*
+ showargs 2 "$*"
+ showargs 3 $@
+ showargs 4 "$@"
+expected-stdout:
+ <1> <A> <B> <C>
+ <2> <ABC>
+ <3> <A> <B> <C>
+ <4> <A> <B> <C>
+---
+name: IFS-space-colon-1
+description:
+ Simple test, IFS=<white-space>:
+stdin:
+ showargs() { for i; do echo -n " <$i>"; done; echo; }
+ IFS="$IFS:"
+ set --
+ showargs 1 $*
+ showargs 2 "$*"
+ showargs 3 $@
+ showargs 4 "$@"
+ showargs 5 : "$@"
+expected-stdout:
+ <1>
+ <2> <>
+ <3>
+ <4>
+ <5> <:>
+---
+name: IFS-space-colon-2
+description:
+ Simple test, IFS=<white-space>:
+ AT&T ksh fails this, POSIX says the test is correct.
+stdin:
+ showargs() { for i; do echo -n " <$i>"; done; echo; }
+ IFS="$IFS:"
+ set --
+ showargs :"$@"
+expected-stdout:
+ <:>
+---
+name: IFS-space-colon-4
+description:
+ Simple test, IFS=<white-space>:
+stdin:
+ showargs() { for i; do echo -n " <$i>"; done; echo; }
+ IFS="$IFS:"
+ set --
+ showargs "$@$@"
+expected-stdout:
+
+---
+name: IFS-space-colon-5
+description:
+ Simple test, IFS=<white-space>:
+ Don't know what POSIX thinks of this. AT&T ksh does not do this.
+stdin:
+ showargs() { for i; do echo -n " <$i>"; done; echo; }
+ IFS="$IFS:"
+ set --
+ showargs "${@:-}"
+expected-stdout:
+ <>
+---
+name: IFS-subst-1
+description:
+ Simple test, IFS=<white-space>:
+stdin:
+ showargs() { for i; do echo -n " <$i>"; done; echo; }
+ IFS="$IFS:"
+ x=":b: :"
+ echo -n '1:'; for i in $x ; do echo -n " [$i]" ; done ; echo
+ echo -n '2:'; for i in :b:: ; do echo -n " [$i]" ; done ; echo
+ showargs 3 $x
+ showargs 4 :b::
+ x="a:b:"
+ echo -n '5:'; for i in $x ; do echo -n " [$i]" ; done ; echo
+ showargs 6 $x
+ x="a::c"
+ echo -n '7:'; for i in $x ; do echo -n " [$i]" ; done ; echo
+ showargs 8 $x
+ echo -n '9:'; for i in ${FOO-`echo -n h:i`th:ere} ; do echo -n " [$i]" ; done ; echo
+ showargs 10 ${FOO-`echo -n h:i`th:ere}
+ showargs 11 "${FOO-`echo -n h:i`th:ere}"
+ x=" A : B::D"
+ echo -n '12:'; for i in $x ; do echo -n " [$i]" ; done ; echo
+ showargs 13 $x
+expected-stdout:
+ 1: [] [b] []
+ 2: [:b::]
+ <3> <> <b> <>
+ <4> <:b::>
+ 5: [a] [b]
+ <6> <a> <b>
+ 7: [a] [] [c]
+ <8> <a> <> <c>
+ 9: [h] [ith] [ere]
+ <10> <h> <ith> <ere>
+ <11> <h:ith:ere>
+ 12: [A] [B] [] [D]
+ <13> <A> <B> <> <D>
+---
+name: IFS-subst-2
+description:
+ Check leading whitespace after trim does not make a field
+stdin:
+ showargs() { for i; do echo -n " <$i>"; done; echo; }
+ x="X 1 2"
+ showargs 1 shift ${x#X}
+expected-stdout:
+ <1> <shift> <1> <2>
+---
+name: IFS-arith-1
+description:
+ http://austingroupbugs.net/view.php?id=832
+stdin:
+ ${ZSH_VERSION+false} || emulate sh
+ ${BASH_VERSION+set -o posix}
+ showargs() { for x in "$@"; do echo -n "<$x> "; done; echo .; }
+ IFS=0
+ showargs $((1230456))
+expected-stdout:
+ <123> <456> .
+---
+name: integer-base-err-1
+description:
+ Can't have 0 base (causes shell to exit)
+expected-exit: e != 0
+stdin:
+ typeset -i i
+ i=3
+ i=0#4
+ echo $i
+expected-stderr-pattern:
+ /^.*:.*0#4.*\n$/
+---
+name: integer-base-err-2
+description:
+ Can't have multiple bases in a 'constant' (causes shell to exit)
+ (ksh88 fails this test)
+expected-exit: e != 0
+stdin:
+ typeset -i i
+ i=3
+ i=2#110#11
+ echo $i
+expected-stderr-pattern:
+ /^.*:.*2#110#11.*\n$/
+---
+name: integer-base-err-3
+description:
+ Syntax errors in expressions and effects on bases
+ (interactive so errors don't cause exits)
+ (ksh88 fails this test - shell exits, even with -i)
+need-ctty: yes
+arguments: !-i!
+stdin:
+ PS1= # minimise prompt hassles
+ typeset -i4 a=10
+ typeset -i a=2+
+ echo $a
+ typeset -i4 a=10
+ typeset -i2 a=2+
+ echo $a
+expected-stderr-pattern:
+ /^([#\$] )?.*:.*2+.*\n.*:.*2+.*\n$/
+expected-stdout:
+ 4#22
+ 4#22
+---
+name: integer-base-err-4
+description:
+ Are invalid digits (according to base) errors?
+ (ksh93 fails this test)
+expected-exit: e != 0
+stdin:
+ typeset -i i;
+ i=3#4
+expected-stderr-pattern:
+ /^([#\$] )?.*:.*3#4.*\n$/
+---
+name: integer-base-1
+description:
+ Missing number after base is treated as 0.
+stdin:
+ typeset -i i
+ i=3
+ i=2#
+ echo $i
+expected-stdout:
+ 0
+---
+name: integer-base-2
+description:
+ Check 'stickyness' of base in various situations
+stdin:
+ typeset -i i=8
+ echo $i
+ echo ---------- A
+ typeset -i4 j=8
+ echo $j
+ echo ---------- B
+ typeset -i k=8
+ typeset -i4 k=8
+ echo $k
+ echo ---------- C
+ typeset -i4 l
+ l=3#10
+ echo $l
+ echo ---------- D
+ typeset -i m
+ m=3#10
+ echo $m
+ echo ---------- E
+ n=2#11
+ typeset -i n
+ echo $n
+ n=10
+ echo $n
+ echo ---------- F
+ typeset -i8 o=12
+ typeset -i4 o
+ echo $o
+ echo ---------- G
+ typeset -i p
+ let p=8#12
+ echo $p
+expected-stdout:
+ 8
+ ---------- A
+ 4#20
+ ---------- B
+ 4#20
+ ---------- C
+ 4#3
+ ---------- D
+ 3#10
+ ---------- E
+ 2#11
+ 2#1010
+ ---------- F
+ 4#30
+ ---------- G
+ 8#12
+---
+name: integer-base-3
+description:
+ More base parsing (hmm doesn't test much..)
+stdin:
+ typeset -i aa
+ aa=1+12#10+2
+ echo $aa
+ typeset -i bb
+ bb=1+$aa
+ echo $bb
+ typeset -i bb
+ bb=$aa
+ echo $bb
+ typeset -i cc
+ cc=$aa
+ echo $cc
+expected-stdout:
+ 15
+ 16
+ 15
+ 15
+---
+name: integer-base-4
+description:
+ Check that things not declared as integers are not made integers,
+ also, check if base is not reset by -i with no arguments.
+ (ksh93 fails - prints 10#20 - go figure)
+stdin:
+ xx=20
+ let xx=10
+ typeset -i | grep '^xx='
+ typeset -i4 a=10
+ typeset -i a=20
+ echo $a
+expected-stdout:
+ 4#110
+---
+name: integer-base-5
+description:
+ More base stuff
+stdin:
+ typeset -i4 a=3#10
+ echo $a
+ echo --
+ typeset -i j=3
+ j='~3'
+ echo $j
+ echo --
+ typeset -i k=1
+ x[k=k+1]=3
+ echo $k
+ echo --
+ typeset -i l
+ for l in 1 2+3 4; do echo $l; done
+expected-stdout:
+ 4#3
+ --
+ -4
+ --
+ 2
+ --
+ 1
+ 5
+ 4
+---
+name: integer-base-6
+description:
+ Even more base stuff
+ (ksh93 fails this test - prints 0)
+stdin:
+ typeset -i7 i
+ i=
+ echo $i
+expected-stdout:
+ 7#0
+---
+name: integer-base-7
+description:
+ Check that non-integer parameters don't get bases assigned
+stdin:
+ echo $(( zz = 8#100 ))
+ echo $zz
+expected-stdout:
+ 64
+ 64
+---
+name: integer-base-check-flat
+description:
+ Check behaviour does not match POSuX (except if set -o posix),
+ because a not type-safe scripting language has *no* business
+ interpreting the string "010" as octal numer eight (dangerous).
+stdin:
+ echo 1 "$("$__progname" -c 'echo :$((10))/$((010)),$((0x10)):')" .
+ echo 2 "$("$__progname" -o posix -c 'echo :$((10))/$((010)),$((0x10)):')" .
+ echo 3 "$("$__progname" -o sh -c 'echo :$((10))/$((010)),$((0x10)):')" .
+expected-stdout:
+ 1 :10/10,16: .
+ 2 :10/8,16: .
+ 3 :10/10,16: .
+---
+name: integer-base-check-numeric-from
+description:
+ Check behaviour for base one to 36, and that 37 errors out
+stdin:
+ echo 1:$((1#1))0.
+ i=1
+ while (( ++i <= 36 )); do
+ eval 'echo '$i':$(('$i'#10)).'
+ done
+ echo 37:$($__progname -c 'echo $((37#10))').$?:
+expected-stdout:
+ 1:490.
+ 2:2.
+ 3:3.
+ 4:4.
+ 5:5.
+ 6:6.
+ 7:7.
+ 8:8.
+ 9:9.
+ 10:10.
+ 11:11.
+ 12:12.
+ 13:13.
+ 14:14.
+ 15:15.
+ 16:16.
+ 17:17.
+ 18:18.
+ 19:19.
+ 20:20.
+ 21:21.
+ 22:22.
+ 23:23.
+ 24:24.
+ 25:25.
+ 26:26.
+ 27:27.
+ 28:28.
+ 29:29.
+ 30:30.
+ 31:31.
+ 32:32.
+ 33:33.
+ 34:34.
+ 35:35.
+ 36:36.
+ 37:.0:
+expected-stderr-pattern:
+ /.*bad number '37#10'/
+---
+name: integer-base-check-numeric-to
+description:
+ Check behaviour for base one to 36, and that 37 errors out
+stdin:
+ i=0
+ while (( ++i <= 37 )); do
+ typeset -Uui$i x=0x40
+ eval "typeset -i10 y=$x"
+ print $i:$x.$y.
+ done
+expected-stdout:
+ 1:1#@.64.
+ 2:2#1000000.64.
+ 3:3#2101.64.
+ 4:4#1000.64.
+ 5:5#224.64.
+ 6:6#144.64.
+ 7:7#121.64.
+ 8:8#100.64.
+ 9:9#71.64.
+ 10:64.64.
+ 11:11#59.64.
+ 12:12#54.64.
+ 13:13#4C.64.
+ 14:14#48.64.
+ 15:15#44.64.
+ 16:16#40.64.
+ 17:17#3D.64.
+ 18:18#3A.64.
+ 19:19#37.64.
+ 20:20#34.64.
+ 21:21#31.64.
+ 22:22#2K.64.
+ 23:23#2I.64.
+ 24:24#2G.64.
+ 25:25#2E.64.
+ 26:26#2C.64.
+ 27:27#2A.64.
+ 28:28#28.64.
+ 29:29#26.64.
+ 30:30#24.64.
+ 31:31#22.64.
+ 32:32#20.64.
+ 33:33#1V.64.
+ 34:34#1U.64.
+ 35:35#1T.64.
+ 36:36#1S.64.
+ 37:36#1S.64.
+expected-stderr-pattern:
+ /.*bad integer base: 37/
+---
+name: integer-arithmetic-span
+description:
+ Check wraparound and size that is defined in mksh
+category: int:32
+stdin:
+ echo s:$((2147483647+1)).$(((2147483647*2)+1)).$(((2147483647*2)+2)).
+ echo u:$((#2147483647+1)).$((#(2147483647*2)+1)).$((#(2147483647*2)+2)).
+expected-stdout:
+ s:-2147483648.-1.0.
+ u:2147483648.4294967295.0.
+---
+name: integer-arithmetic-span-64
+description:
+ Check wraparound and size that is defined in mksh
+category: int:64
+stdin:
+ echo s:$((9223372036854775807+1)).$(((9223372036854775807*2)+1)).$(((9223372036854775807*2)+2)).
+ echo u:$((#9223372036854775807+1)).$((#(9223372036854775807*2)+1)).$((#(9223372036854775807*2)+2)).
+expected-stdout:
+ s:-9223372036854775808.-1.0.
+ u:9223372036854775808.18446744073709551615.0.
+---
+name: integer-size-FAIL-to-detect
+description:
+ Notify the user that their ints are not 32 or 64 bit
+category: int:u
+stdin:
+ :
+---
+name: lineno-stdin
+description:
+ See if $LINENO is updated and can be modified.
+stdin:
+ echo A $LINENO
+ echo B $LINENO
+ LINENO=20
+ echo C $LINENO
+expected-stdout:
+ A 1
+ B 2
+ C 20
+---
+name: lineno-inc
+description:
+ See if $LINENO is set for .'d files.
+file-setup: file 644 "dotfile"
+ echo dot A $LINENO
+ echo dot B $LINENO
+ LINENO=20
+ echo dot C $LINENO
+stdin:
+ echo A $LINENO
+ echo B $LINENO
+ . ./dotfile
+expected-stdout:
+ A 1
+ B 2
+ dot A 1
+ dot B 2
+ dot C 20
+---
+name: lineno-func
+description:
+ See if $LINENO is set for commands in a function.
+stdin:
+ echo A $LINENO
+ echo B $LINENO
+ bar() {
+ echo func A $LINENO
+ echo func B $LINENO
+ }
+ bar
+ echo C $LINENO
+expected-stdout:
+ A 1
+ B 2
+ func A 4
+ func B 5
+ C 8
+---
+name: lineno-unset
+description:
+ See if unsetting LINENO makes it non-magic.
+file-setup: file 644 "dotfile"
+ echo dot A $LINENO
+ echo dot B $LINENO
+stdin:
+ unset LINENO
+ echo A $LINENO
+ echo B $LINENO
+ bar() {
+ echo func A $LINENO
+ echo func B $LINENO
+ }
+ bar
+ . ./dotfile
+ echo C $LINENO
+expected-stdout:
+ A
+ B
+ func A
+ func B
+ dot A
+ dot B
+ C
+---
+name: lineno-unset-use
+description:
+ See if unsetting LINENO makes it non-magic even
+ when it is re-used.
+file-setup: file 644 "dotfile"
+ echo dot A $LINENO
+ echo dot B $LINENO
+stdin:
+ unset LINENO
+ LINENO=3
+ echo A $LINENO
+ echo B $LINENO
+ bar() {
+ echo func A $LINENO
+ echo func B $LINENO
+ }
+ bar
+ . ./dotfile
+ echo C $LINENO
+expected-stdout:
+ A 3
+ B 3
+ func A 3
+ func B 3
+ dot A 3
+ dot B 3
+ C 3
+---
+name: lineno-trap
+description:
+ Check if LINENO is tracked in traps
+stdin:
+ fail() {
+ echo "line <$1>"
+ exit 1
+ }
+ trap 'fail $LINENO' INT ERR
+ false
+expected-stdout:
+ line <6>
+expected-exit: 1
+---
+name: unknown-trap
+description:
+ Ensure unknown traps are not a syntax error
+stdin:
+ (
+ trap "echo trap 1 executed" UNKNOWNSIGNAL || echo "foo"
+ echo =1
+ trap "echo trap 2 executed" UNKNOWNSIGNAL EXIT 999999 FNORD
+ echo = $?
+ ) 2>&1 | sed "s^${__progname%.exe}\.*e*x*e*: <stdin>\[[0-9]*]PROG"
+expected-stdout:
+ PROG: trap: bad signal 'UNKNOWNSIGNAL'
+ foo
+ =1
+ PROG: trap: bad signal 'UNKNOWNSIGNAL'
+ PROG: trap: bad signal '999999'
+ PROG: trap: bad signal 'FNORD'
+ = 3
+ trap 2 executed
+---
+name: read-IFS-1
+description:
+ Simple test, default IFS
+stdin:
+ echo "A B " > IN
+ unset x y z
+ read x y z < IN
+ echo 1: "x[$x] y[$y] z[$z]"
+ echo 1a: ${z-z not set}
+ read x < IN
+ echo 2: "x[$x]"
+expected-stdout:
+ 1: x[A] y[B] z[]
+ 1a:
+ 2: x[A B]
+---
+name: read-ksh-1
+description:
+ If no var specified, REPLY is used
+stdin:
+ echo "abc" > IN
+ read < IN
+ echo "[$REPLY]";
+expected-stdout:
+ [abc]
+---
+name: read-regress-1
+description:
+ Check a regression of read
+file-setup: file 644 "foo"
+ foo bar
+ baz
+ blah
+stdin:
+ while read a b c; do
+ read d
+ break
+ done <foo
+ echo "<$a|$b|$c><$d>"
+expected-stdout:
+ <foo|bar|><baz>
+---
+name: read-delim-1
+description:
+ Check read with delimiters
+stdin:
+ emit() {
+ print -n 'foo bar\tbaz\nblah \0blub\tblech\nmyok meck \0'
+ }
+ emit | while IFS= read -d "" foo; do print -r -- "<$foo>"; done
+ emit | while read -d "" foo; do print -r -- "<$foo>"; done
+ emit | while read -d "eh?" foo; do print -r -- "<$foo>"; done
+expected-stdout:
+ <foo bar baz
+ blah >
+ <blub blech
+ myok meck >
+ <foo bar baz
+ blah>
+ <blub blech
+ myok meck>
+ <foo bar baz
+ blah blub bl>
+ <ch
+ myok m>
+---
+name: read-ext-1
+description:
+ Check read with number of bytes specified, and -A
+stdin:
+ print 'foo\nbar' >x1
+ print -n x >x2
+ print 'foo\\ bar baz' >x3
+ x1a=u; read x1a <x1
+ x1b=u; read -N-1 x1b <x1
+ x2a=u; read x2a <x2; r2a=$?
+ x2b=u; read -N2 x2c <x2; r2b=$?
+ x2c=u; read -n2 x2c <x2; r2c=$?
+ x3a=u; read -A x3a <x3
+ print -r "x1a=<$x1a>"
+ print -r "x1b=<$x1b>"
+ print -r "x2a=$r2a<$x2a>"
+ print -r "x2b=$r2b<$x2b>"
+ print -r "x2c=$r2c<$x2c>"
+ print -r "x3a=<${x3a[0]}|${x3a[1]}|${x3a[2]}>"
+expected-stdout:
+ x1a=<foo>
+ x1b=<foo
+ bar>
+ x2a=1<x>
+ x2b=1<u>
+ x2c=0<x>
+ x3a=<foo bar|baz|>
+---
+name: regression-1
+description:
+ Lex array code had problems with this.
+stdin:
+ echo foo[
+ n=bar
+ echo "hi[ $n ]=1"
+expected-stdout:
+ foo[
+ hi[ bar ]=1
+---
+name: regression-2
+description:
+ When PATH is set before running a command, the new path is
+ not used in doing the path search
+ $ echo echo hi > /tmp/q ; chmod a+rx /tmp/q
+ $ PATH=/tmp q
+ q: not found
+ $
+ in comexec() the two lines
+ while (*vp != NULL)
+ (void) typeset(*vp++, xxx, 0);
+ need to be moved out of the switch to before findcom() is
+ called - I don't know what this will break.
+stdin:
+ : ${PWD:-`pwd 2> /dev/null`}
+ : ${PWD:?"PWD not set - can't do test"}
+ mkdir Y
+ cat > Y/xxxscript << EOF
+ #!/bin/sh
+ # Need to restore path so echo can be found (some shells don't have
+ # it as a built-in)
+ PATH=\$OLDPATH
+ echo hi
+ exit 0
+ EOF
+ chmod a+rx Y/xxxscript
+ export OLDPATH="$PATH"
+ PATH=$PWD/Y xxxscript
+ exit $?
+expected-stdout:
+ hi
+---
+name: regression-6
+description:
+ Parsing of $(..) expressions is non-optimal. It is
+ impossible to have any parentheses inside the expression.
+ I.e.,
+ $ ksh -c 'echo $(echo \( )'
+ no closing quote
+ $ ksh -c 'echo $(echo "(" )'
+ no closing quote
+ $
+ The solution is to hack the parsing clode in lex.c, the
+ question is how to hack it: should any parentheses be
+ escaped by a backslash, or should recursive parsing be done
+ (so quotes could also be used to hide hem). The former is
+ easier, the later better...
+stdin:
+ echo $(echo \( )
+ echo $(echo "(" )
+expected-stdout:
+ (
+ (
+---
+name: regression-9
+description:
+ Continue in a for loop does not work right:
+ for i in a b c ; do
+ if [ $i = b ] ; then
+ continue
+ fi
+ echo $i
+ done
+ Prints a forever...
+stdin:
+ first=yes
+ for i in a b c ; do
+ if [ $i = b ] ; then
+ if [ $first = no ] ; then
+ echo 'continue in for loop broken'
+ break # hope break isn't broken too :-)
+ fi
+ first=no
+ continue
+ fi
+ done
+ echo bye
+expected-stdout:
+ bye
+---
+name: regression-10
+description:
+ The following:
+ set -- `false`
+ echo $?
+ should print 0 according to POSIX (dash, bash, ksh93, posh)
+ but not 0 according to the getopt(1) manual page, ksh88, and
+ Bourne sh (such as /bin/sh on Solaris).
+ We honour POSIX except when -o sh is set.
+category: shell:legacy-no
+stdin:
+ showf() {
+ [[ -o posix ]]; FPOSIX=$((1-$?))
+ [[ -o sh ]]; FSH=$((1-$?))
+ echo -n "FPOSIX=$FPOSIX FSH=$FSH "
+ }
+ set +o posix +o sh
+ showf
+ set -- `false`
+ echo rv=$?
+ set -o sh
+ showf
+ set -- `false`
+ echo rv=$?
+ set -o posix
+ showf
+ set -- `false`
+ echo rv=$?
+ set -o posix -o sh
+ showf
+ set -- `false`
+ echo rv=$?
+expected-stdout:
+ FPOSIX=0 FSH=0 rv=0
+ FPOSIX=0 FSH=1 rv=1
+ FPOSIX=1 FSH=0 rv=0
+ FPOSIX=1 FSH=1 rv=0
+---
+name: regression-10-legacy
+description:
+ The following:
+ set -- `false`
+ echo $?
+ should print 0 according to POSIX (dash, bash, ksh93, posh)
+ but not 0 according to the getopt(1) manual page, ksh88, and
+ Bourne sh (such as /bin/sh on Solaris).
+category: shell:legacy-yes
+stdin:
+ showf() {
+ [[ -o posix ]]; FPOSIX=$((1-$?))
+ [[ -o sh ]]; FSH=$((1-$?))
+ echo -n "FPOSIX=$FPOSIX FSH=$FSH "
+ }
+ set +o posix +o sh
+ showf
+ set -- `false`
+ echo rv=$?
+ set -o sh
+ showf
+ set -- `false`
+ echo rv=$?
+ set -o posix
+ showf
+ set -- `false`
+ echo rv=$?
+ set -o posix -o sh
+ showf
+ set -- `false`
+ echo rv=$?
+expected-stdout:
+ FPOSIX=0 FSH=0 rv=1
+ FPOSIX=0 FSH=1 rv=1
+ FPOSIX=1 FSH=0 rv=0
+ FPOSIX=1 FSH=1 rv=0
+---
+name: regression-11
+description:
+ The following:
+ x=/foo/bar/blah
+ echo ${x##*/}
+ should echo blah but on some machines echos /foo/bar/blah.
+stdin:
+ x=/foo/bar/blah
+ echo ${x##*/}
+expected-stdout:
+ blah
+---
+name: regression-12
+description:
+ Both of the following echos produce the same output under sh/ksh.att:
+ #!/bin/sh
+ x="foo bar"
+ echo "`echo \"$x\"`"
+ echo "`echo "$x"`"
+ pdksh produces different output for the former (foo instead of foo\tbar)
+stdin:
+ x="foo bar"
+ echo "`echo \"$x\"`"
+ echo "`echo "$x"`"
+expected-stdout:
+ foo bar
+ foo bar
+---
+name: regression-13
+description:
+ The following command hangs forever:
+ $ (: ; cat /etc/termcap) | sleep 2
+ This is because the shell forks a shell to run the (..) command
+ and this shell has the pipe open. When the sleep dies, the cat
+ doesn't get a SIGPIPE 'cause a process (ie, the second shell)
+ still has the pipe open.
+
+ NOTE: this test provokes a bizarre bug in ksh93 (shell starts reading
+ commands from /etc/termcap..)
+time-limit: 10
+stdin:
+ echo A line of text that will be duplicated quite a number of times.> t1
+ cat t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 t1 > t2
+ cat t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 t2 > t1
+ cat t1 t1 t1 t1 > t2
+ (: ; cat t2 2>/dev/null) | sleep 1
+---
+name: regression-14
+description:
+ The command
+ $ (foobar) 2> /dev/null
+ generates no output under /bin/sh, but pdksh produces the error
+ foobar: not found
+ Also, the command
+ $ foobar 2> /dev/null
+ generates an error under /bin/sh and pdksh, but AT&T ksh88 produces
+ no error (redirected to /dev/null).
+stdin:
+ (you/should/not/see/this/error/1) 2> /dev/null
+ you/should/not/see/this/error/2 2> /dev/null
+ true
+---
+name: regression-15
+description:
+ The command
+ $ whence foobar
+ generates a blank line under pdksh and sets the exit status to 0.
+ AT&T ksh88 generates no output and sets the exit status to 1. Also,
+ the command
+ $ whence foobar cat
+ generates no output under AT&T ksh88 (pdksh generates a blank line
+ and /bin/cat).
+stdin:
+ whence does/not/exist > /dev/null
+ echo 1: $?
+ echo 2: $(whence does/not/exist | wc -l)
+ echo 3: $(whence does/not/exist cat | wc -l)
+expected-stdout:
+ 1: 1
+ 2: 0
+ 3: 0
+---
+name: regression-16
+description:
+ ${var%%expr} seems to be broken in many places. On the mips
+ the commands
+ $ read line < /etc/passwd
+ $ echo $line
+ root:0:1:...
+ $ echo ${line%%:*}
+ root
+ $ echo $line
+ root
+ $
+ change the value of line. On sun4s & pas, the echo ${line%%:*} doesn't
+ work. Haven't checked elsewhere...
+script:
+ read x
+ y=$x
+ echo ${x%%:*}
+ echo $x
+stdin:
+ root:asdjhasdasjhs:0:1:Root:/:/bin/sh
+expected-stdout:
+ root
+ root:asdjhasdasjhs:0:1:Root:/:/bin/sh
+---
+name: regression-17
+description:
+ The command
+ . /foo/bar
+ should set the exit status to non-zero (sh and AT&T ksh88 do).
+ XXX doting a non existent file is a fatal error for a script
+stdin:
+ . does/not/exist
+expected-exit: e != 0
+expected-stderr-pattern: /.?/
+---
+name: regression-19
+description:
+ Both of the following echos should produce the same thing, but don't:
+ $ x=foo/bar
+ $ echo ${x%/*}
+ foo
+ $ echo "${x%/*}"
+ foo/bar
+stdin:
+ x=foo/bar
+ echo "${x%/*}"
+expected-stdout:
+ foo
+---
+name: regression-21
+description:
+ backslash does not work as expected in case labels:
+ $ x='-x'
+ $ case $x in
+ -\?) echo hi
+ esac
+ hi
+ $ x='-?'
+ $ case $x in
+ -\\?) echo hi
+ esac
+ hi
+ $
+stdin:
+ case -x in
+ -\?) echo fail
+ esac
+---
+name: regression-22
+description:
+ Quoting backquotes inside backquotes doesn't work:
+ $ echo `echo hi \`echo there\` folks`
+ asks for more info. sh and AT&T ksh88 both echo
+ hi there folks
+stdin:
+ echo `echo hi \`echo there\` folks`
+expected-stdout:
+ hi there folks
+---
+name: regression-23
+description:
+ )) is not treated `correctly':
+ $ (echo hi ; (echo there ; echo folks))
+ missing ((
+ $
+ instead of (as sh and ksh.att)
+ $ (echo hi ; (echo there ; echo folks))
+ hi
+ there
+ folks
+ $
+stdin:
+ ( : ; ( : ; echo hi))
+expected-stdout:
+ hi
+---
+name: regression-25
+description:
+ Check reading stdin in a while loop. The read should only read
+ a single line, not a whole stdio buffer; the cat should get
+ the rest.
+stdin:
+ (echo a; echo b) | while read x ; do
+ echo $x
+ cat > /dev/null
+ done
+expected-stdout:
+ a
+---
+name: regression-26
+description:
+ Check reading stdin in a while loop. The read should read both
+ lines, not just the first.
+script:
+ a=
+ while [ "$a" != xxx ] ; do
+ last=$x
+ read x
+ cat /dev/null | sed 's/x/y/'
+ a=x$a
+ done
+ echo $last
+stdin:
+ a
+ b
+expected-stdout:
+ b
+---
+name: regression-27
+description:
+ The command
+ . /does/not/exist
+ should cause a script to exit.
+stdin:
+ . does/not/exist
+ echo hi
+expected-exit: e != 0
+expected-stderr-pattern: /does\/not\/exist/
+---
+name: regression-28
+description:
+ variable assignements not detected well
+stdin:
+ a.x=1 echo hi
+expected-exit: e != 0
+expected-stderr-pattern: /a\.x=1/
+---
+name: regression-29
+description:
+ alias expansion different from AT&T ksh88
+stdin:
+ alias a='for ' b='i in'
+ a b hi ; do echo $i ; done
+expected-stdout:
+ hi
+---
+name: regression-30
+description:
+ strange characters allowed inside ${...}
+stdin:
+ echo ${a{b}}
+expected-exit: e != 0
+expected-stderr-pattern: /.?/
+---
+name: regression-31
+description:
+ Does read handle partial lines correctly
+script:
+ a= ret=
+ while [ "$a" != xxx ] ; do
+ read x y z
+ ret=$?
+ a=x$a
+ done
+ echo "[$x]"
+ echo $ret
+stdin: !
+ a A aA
+ b B Bb
+ c
+expected-stdout:
+ [c]
+ 1
+---
+name: regression-32
+description:
+ Does read set variables to null at eof?
+script:
+ a=
+ while [ "$a" != xxx ] ; do
+ read x y z
+ a=x$a
+ done
+ echo 1: ${x-x not set} ${y-y not set} ${z-z not set}
+ echo 2: ${x:+x not null} ${y:+y not null} ${z:+z not null}
+stdin:
+ a A Aa
+ b B Bb
+expected-stdout:
+ 1:
+ 2:
+---
+name: regression-33
+description:
+ Does umask print a leading 0 when umask is 3 digits?
+stdin:
+ # on MiNT, the first umask call seems to fail
+ umask 022
+ # now, the test proper
+ umask 222
+ umask
+expected-stdout:
+ 0222
+---
+name: regression-35
+description:
+ Tempory files used for here-docs in functions get trashed after
+ the function is parsed (before it is executed)
+stdin:
+ f1() {
+ cat <<- EOF
+ F1
+ EOF
+ f2() {
+ cat <<- EOF
+ F2
+ EOF
+ }
+ }
+ f1
+ f2
+ unset -f f1
+ f2
+expected-stdout:
+ F1
+ F2
+ F2
+---
+name: regression-36
+description:
+ Command substitution breaks reading in while loop
+ (test from <sjg at void.zen.oz.au>)
+stdin:
+ (echo abcdef; echo; echo 123) |
+ while read line
+ do
+ # the following line breaks it
+ c=`echo $line | wc -c`
+ echo $c
+ done
+expected-stdout:
+ 7
+ 1
+ 4
+---
+name: regression-37
+description:
+ Machines with broken times() (reported by <sjg at void.zen.oz.au>)
+ time does not report correct real time
+stdin:
+ time sleep 1
+expected-stderr-pattern: !/^\s*0\.0[\s\d]+real|^\s*real[\s]+0+\.0/
+---
+name: regression-38
+description:
+ set -e doesn't ignore exit codes for if/while/until/&&/||/!.
+arguments: !-e!
+stdin:
+ if false; then echo hi ; fi
+ false || true
+ false && true
+ while false; do echo hi; done
+ echo ok
+expected-stdout:
+ ok
+---
+name: regression-39
+description:
+ Only posh and oksh(2013-07) say “hi” below; FreeBSD sh,
+ GNU bash in POSIX mode, dash, ksh93, mksh don’t. All of
+ them exit 0. The POSIX behaviour is needed by BSD make.
+stdin:
+ set -e
+ echo `false; echo hi` $(<this-file-does-not-exist)
+ echo $?
+expected-stdout:
+
+ 0
+expected-stderr-pattern: /this-file-does-not-exist/
+---
+name: regression-40
+description:
+ This used to cause a core dump
+env-setup: !RANDOM=12!
+stdin:
+ echo hi
+expected-stdout:
+ hi
+---
+name: regression-41
+description:
+ foo should be set to bar (should not be empty)
+stdin:
+ foo=`
+ echo bar`
+ echo "($foo)"
+expected-stdout:
+ (bar)
+---
+name: regression-42
+description:
+ Can't use command line assignments to assign readonly parameters.
+stdin:
+ print '#!'"$__progname"'\nunset RANDOM\nexport | while IFS= read -r' \
+ 'RANDOM; do eval '\''print -r -- "$RANDOM=$'\''"$RANDOM"'\'\"\'\; \
+ done >env; chmod +x env; PATH=.:$PATH
+ foo=bar
+ readonly foo
+ foo=stuff env | grep '^foo'
+expected-exit: e != 0
+expected-stderr-pattern:
+ /read-only/
+---
+name: regression-43
+description:
+ Can subshells be prefixed by redirections (historical shells allow
+ this)
+stdin:
+ < /dev/null (sed 's/^/X/')
+---
+name: regression-45
+description:
+ Parameter assignments with [] recognised correctly
+stdin:
+ FOO=*[12]
+ BAR=abc[
+ MORE=[abc]
+ JUNK=a[bc
+ echo "<$FOO>"
+ echo "<$BAR>"
+ echo "<$MORE>"
+ echo "<$JUNK>"
+expected-stdout:
+ <*[12]>
+ <abc[>
+ <[abc]>
+ <a[bc>
+---
+name: regression-46
+description:
+ Check that alias expansion works in command substitutions and
+ at the end of file.
+stdin:
+ alias x='echo hi'
+ FOO="`x` "
+ echo "[$FOO]"
+ x
+expected-stdout:
+ [hi ]
+ hi
+---
+name: regression-47
+description:
+ Check that aliases are fully read.
+stdin:
+ alias x='echo hi;
+ echo there'
+ x
+ echo done
+expected-stdout:
+ hi
+ there
+ done
+---
+name: regression-48
+description:
+ Check that (here doc) temp files are not left behind after an exec.
+stdin:
+ mkdir foo || exit 1
+ TMPDIR=$PWD/foo "$__progname" <<- 'EOF'
+ x() {
+ sed 's/^/X /' << E_O_F
+ hi
+ there
+ folks
+ E_O_F
+ echo "done ($?)"
+ }
+ echo=echo; [ -x /bin/echo ] && echo=/bin/echo
+ exec $echo subtest-1 hi
+ EOF
+ echo subtest-1 foo/*
+ TMPDIR=$PWD/foo "$__progname" <<- 'EOF'
+ echo=echo; [ -x /bin/echo ] && echo=/bin/echo
+ sed 's/^/X /' << E_O_F; exec $echo subtest-2 hi
+ a
+ few
+ lines
+ E_O_F
+ EOF
+ echo subtest-2 foo/*
+expected-stdout:
+ subtest-1 hi
+ subtest-1 foo/*
+ X a
+ X few
+ X lines
+ subtest-2 hi
+ subtest-2 foo/*
+---
+name: regression-49
+description:
+ Check that unset params with attributes are reported by set, those
+ sans attributes are not.
+stdin:
+ unset FOO BAR
+ echo X$FOO
+ export BAR
+ typeset -i BLAH
+ set | grep FOO
+ set | grep BAR
+ set | grep BLAH
+expected-stdout:
+ X
+ BAR
+ BLAH
+---
+name: regression-50
+description:
+ Check that aliases do not use continuation prompt after trailing
+ semi-colon.
+file-setup: file 644 "envf"
+ PS1=Y
+ PS2=X
+env-setup: !ENV=./envf!
+need-ctty: yes
+arguments: !-i!
+stdin:
+ alias foo='echo hi ; '
+ foo
+ foo echo there
+expected-stdout:
+ hi
+ hi
+ there
+expected-stderr: !
+ YYYY
+---
+name: regression-51
+description:
+ Check that set allows both +o and -o options on same command line.
+stdin:
+ set a b c
+ set -o noglob +o allexport
+ echo A: $*, *
+expected-stdout:
+ A: a b c, *
+---
+name: regression-52
+description:
+ Check that globbing works in pipelined commands
+file-setup: file 644 "envf"
+ PS1=P
+file-setup: file 644 "abc"
+ stuff
+env-setup: !ENV=./envf!
+need-ctty: yes
+arguments: !-i!
+stdin:
+ sed 's/^/X /' < ab*
+ echo mark 1
+ sed 's/^/X /' < ab* | sed 's/^/Y /'
+ echo mark 2
+expected-stdout:
+ X stuff
+ mark 1
+ Y X stuff
+ mark 2
+expected-stderr: !
+ PPPPP
+---
+name: regression-53
+description:
+ Check that getopts works in functions
+stdin:
+ bfunc() {
+ echo bfunc: enter "(args: $*; OPTIND=$OPTIND)"
+ while getopts B oc; do
+ case $oc in
+ (B)
+ echo bfunc: B option
+ ;;
+ (*)
+ echo bfunc: odd option "($oc)"
+ ;;
+ esac
+ done
+ echo bfunc: leave
+ }
+
+ function kfunc {
+ echo kfunc: enter "(args: $*; OPTIND=$OPTIND)"
+ while getopts K oc; do
+ case $oc in
+ (K)
+ echo kfunc: K option
+ ;;
+ (*)
+ echo bfunc: odd option "($oc)"
+ ;;
+ esac
+ done
+ echo kfunc: leave
+ }
+
+ set -- -f -b -k -l
+ echo "line 1: OPTIND=$OPTIND"
+ getopts kbfl optc
+ echo "line 2: ret=$?, optc=$optc, OPTIND=$OPTIND"
+ bfunc -BBB blah
+ echo "line 3: OPTIND=$OPTIND"
+ getopts kbfl optc
+ echo "line 4: ret=$?, optc=$optc, OPTIND=$OPTIND"
+ kfunc -KKK blah
+ echo "line 5: OPTIND=$OPTIND"
+ getopts kbfl optc
+ echo "line 6: ret=$?, optc=$optc, OPTIND=$OPTIND"
+ echo
+
+ OPTIND=1
+ set -- -fbkl
+ echo "line 10: OPTIND=$OPTIND"
+ getopts kbfl optc
+ echo "line 20: ret=$?, optc=$optc, OPTIND=$OPTIND"
+ bfunc -BBB blah
+ echo "line 30: OPTIND=$OPTIND"
+ getopts kbfl optc
+ echo "line 40: ret=$?, optc=$optc, OPTIND=$OPTIND"
+ kfunc -KKK blah
+ echo "line 50: OPTIND=$OPTIND"
+ getopts kbfl optc
+ echo "line 60: ret=$?, optc=$optc, OPTIND=$OPTIND"
+expected-stdout:
+ line 1: OPTIND=1
+ line 2: ret=0, optc=f, OPTIND=2
+ bfunc: enter (args: -BBB blah; OPTIND=2)
+ bfunc: B option
+ bfunc: B option
+ bfunc: leave
+ line 3: OPTIND=2
+ line 4: ret=0, optc=b, OPTIND=3
+ kfunc: enter (args: -KKK blah; OPTIND=1)
+ kfunc: K option
+ kfunc: K option
+ kfunc: K option
+ kfunc: leave
+ line 5: OPTIND=3
+ line 6: ret=0, optc=k, OPTIND=4
+
+ line 10: OPTIND=1
+ line 20: ret=0, optc=f, OPTIND=2
+ bfunc: enter (args: -BBB blah; OPTIND=2)
+ bfunc: B option
+ bfunc: B option
+ bfunc: leave
+ line 30: OPTIND=2
+ line 40: ret=1, optc=?, OPTIND=2
+ kfunc: enter (args: -KKK blah; OPTIND=1)
+ kfunc: K option
+ kfunc: K option
+ kfunc: K option
+ kfunc: leave
+ line 50: OPTIND=2
+ line 60: ret=1, optc=?, OPTIND=2
+---
+name: regression-54
+description:
+ Check that ; is not required before the then in if (( ... )) then ...
+stdin:
+ if (( 1 )) then
+ echo ok dparen
+ fi
+ if [[ -n 1 ]] then
+ echo ok dbrackets
+ fi
+expected-stdout:
+ ok dparen
+ ok dbrackets
+---
+name: regression-55
+description:
+ Check ${foo:%bar} is allowed (ksh88 allows it...)
+stdin:
+ x=fooXbarXblah
+ echo 1 ${x%X*}
+ echo 2 ${x:%X*}
+ echo 3 ${x%%X*}
+ echo 4 ${x:%%X*}
+ echo 5 ${x#*X}
+ echo 6 ${x:#*X}
+ echo 7 ${x##*X}
+ echo 8 ${x:##*X}
+expected-stdout:
+ 1 fooXbar
+ 2 fooXbar
+ 3 foo
+ 4 foo
+ 5 barXblah
+ 6 barXblah
+ 7 blah
+ 8 blah
+---
+name: regression-57
+description:
+ Check if typeset output is correct for
+ uninitialised array elements.
+stdin:
+ typeset -i xxx[4]
+ echo A
+ typeset -i | grep xxx | sed 's/^/ /'
+ echo B
+ typeset | grep xxx | sed 's/^/ /'
+
+ xxx[1]=2+5
+ echo M
+ typeset -i | grep xxx | sed 's/^/ /'
+ echo N
+ typeset | grep xxx | sed 's/^/ /'
+expected-stdout:
+ A
+ xxx
+ B
+ typeset -i xxx
+ M
+ xxx[1]=7
+ N
+ set -A xxx
+ typeset -i xxx[1]
+---
+name: regression-58
+description:
+ Check if trap exit is ok (exit not mistaken for signal name)
+stdin:
+ trap 'echo hi' exit
+ trap exit 1
+expected-stdout:
+ hi
+---
+name: regression-59
+description:
+ Check if ${#array[*]} is calculated correctly.
+stdin:
+ a[12]=hi
+ a[8]=there
+ echo ${#a[*]}
+expected-stdout:
+ 2
+---
+name: regression-60
+description:
+ Check if default exit status is previous command
+stdin:
+ (true; exit)
+ echo A $?
+ (false; exit)
+ echo B $?
+ ( (exit 103) ; exit)
+ echo C $?
+expected-stdout:
+ A 0
+ B 1
+ C 103
+---
+name: regression-61
+description:
+ Check if EXIT trap is executed for sub shells.
+stdin:
+ trap 'echo parent exit' EXIT
+ echo start
+ (echo A; echo A last)
+ echo B
+ (echo C; trap 'echo sub exit' EXIT; echo C last)
+ echo parent last
+expected-stdout:
+ start
+ A
+ A last
+ B
+ C
+ C last
+ sub exit
+ parent last
+ parent exit
+---
+name: regression-62
+description:
+ Check if test -nt/-ot succeeds if second(first) file is missing.
+stdin:
+ touch a
+ test a -nt b && echo nt OK || echo nt BAD
+ test b -ot a && echo ot OK || echo ot BAD
+expected-stdout:
+ nt OK
+ ot OK
+---
+name: regression-63
+description:
+ Check if typeset, export, and readonly work
+stdin:
+ {
+ echo FNORD-0
+ FNORD_A=1
+ FNORD_B=2
+ FNORD_C=3
+ FNORD_D=4
+ FNORD_E=5
+ FNORD_F=6
+ FNORD_G=7
+ FNORD_H=8
+ integer FNORD_E FNORD_F FNORD_G FNORD_H
+ export FNORD_C FNORD_D FNORD_G FNORD_H
+ readonly FNORD_B FNORD_D FNORD_F FNORD_H
+ echo FNORD-1
+ export
+ echo FNORD-2
+ export -p
+ echo FNORD-3
+ readonly
+ echo FNORD-4
+ readonly -p
+ echo FNORD-5
+ typeset
+ echo FNORD-6
+ typeset -p
+ echo FNORD-7
+ typeset -
+ echo FNORD-8
+ } | fgrep FNORD
+ fnord=(42 23)
+ typeset -p fnord
+ echo FNORD-9
+expected-stdout:
+ FNORD-0
+ FNORD-1
+ FNORD_C
+ FNORD_D
+ FNORD_G
+ FNORD_H
+ FNORD-2
+ export FNORD_C=3
+ export FNORD_D=4
+ export FNORD_G=7
+ export FNORD_H=8
+ FNORD-3
+ FNORD_B
+ FNORD_D
+ FNORD_F
+ FNORD_H
+ FNORD-4
+ readonly FNORD_B=2
+ readonly FNORD_D=4
+ readonly FNORD_F=6
+ readonly FNORD_H=8
+ FNORD-5
+ typeset FNORD_A
+ typeset -r FNORD_B
+ typeset -x FNORD_C
+ typeset -x -r FNORD_D
+ typeset -i FNORD_E
+ typeset -i -r FNORD_F
+ typeset -i -x FNORD_G
+ typeset -i -x -r FNORD_H
+ FNORD-6
+ typeset FNORD_A=1
+ typeset -r FNORD_B=2
+ typeset -x FNORD_C=3
+ typeset -x -r FNORD_D=4
+ typeset -i FNORD_E=5
+ typeset -i -r FNORD_F=6
+ typeset -i -x FNORD_G=7
+ typeset -i -x -r FNORD_H=8
+ FNORD-7
+ FNORD_A=1
+ FNORD_B=2
+ FNORD_C=3
+ FNORD_D=4
+ FNORD_E=5
+ FNORD_F=6
+ FNORD_G=7
+ FNORD_H=8
+ FNORD-8
+ set -A fnord
+ typeset fnord[0]=42
+ typeset fnord[1]=23
+ FNORD-9
+---
+name: regression-64
+description:
+ Check that we can redefine functions calling time builtin
+stdin:
+ t() {
+ time >/dev/null
+ }
+ t 2>/dev/null
+ t() {
+ time
+ }
+---
+name: regression-65
+description:
+ check for a regression with sleep builtin and signal mask
+category: !nojsig
+time-limit: 3
+stdin:
+ sleep 1
+ echo blub |&
+ while read -p line; do :; done
+ echo ok
+expected-stdout:
+ ok
+---
+name: regression-66
+description:
+ Check that quoting is sane
+category: !nojsig
+stdin:
+ ac_space=' '
+ ac_newline='
+ '
+ set | grep ^ac_ |&
+ set -A lines
+ while IFS= read -pr line; do
+ if [[ $line = *space* ]]; then
+ lines[0]=$line
+ else
+ lines[1]=$line
+ fi
+ done
+ for line in "${lines[@]}"; do
+ print -r -- "$line"
+ done
+expected-stdout:
+ ac_space=' '
+ ac_newline=$'\n'
+---
+name: readonly-0
+description:
+ Ensure readonly is honoured for assignments and unset
+stdin:
+ "$__progname" -c 'u=x; echo $? $u .' || echo aborted, $?
+ echo =
+ "$__progname" -c 'readonly u; u=x; echo $? $u .' || echo aborted, $?
+ echo =
+ "$__progname" -c 'u=x; readonly u; unset u; echo $? $u .' || echo aborted, $?
+expected-stdout:
+ 0 x .
+ =
+ aborted, 2
+ =
+ 1 x .
+expected-stderr-pattern:
+ /read-only/
+---
+name: readonly-1
+description:
+ http://austingroupbugs.net/view.php?id=367 for export
+stdin:
+ "$__progname" -c 'readonly foo; export foo=a; echo $?' || echo aborted, $?
+expected-stdout:
+ aborted, 2
+expected-stderr-pattern:
+ /read-only/
+---
+name: readonly-2a
+description:
+ Check that getopts works as intended, for readonly-2b to be valid
+stdin:
+ "$__progname" -c 'set -- -a b; getopts a c; echo $? $c .; getopts a c; echo $? $c .' || echo aborted, $?
+expected-stdout:
+ 0 a .
+ 1 ? .
+---
+name: readonly-2b
+description:
+ http://austingroupbugs.net/view.php?id=367 for getopts
+stdin:
+ "$__progname" -c 'readonly c; set -- -a b; getopts a c; echo $? $c .' || echo aborted, $?
+expected-stdout:
+ 2 .
+expected-stderr-pattern:
+ /read-only/
+---
+name: readonly-3
+description:
+ http://austingroupbugs.net/view.php?id=367 for read
+stdin:
+ echo x | "$__progname" -c 'read s; echo $? $s .' || echo aborted, $?
+ echo y | "$__progname" -c 'readonly s; read s; echo $? $s .' || echo aborted, $?
+expected-stdout:
+ 0 x .
+ 2 .
+expected-stderr-pattern:
+ /read-only/
+---
+name: readonly-4
+description:
+ Do not permit bypassing readonly for first array item
+stdin:
+ set -A arr -- foo bar
+ readonly arr
+ arr=baz
+ print -r -- "${arr[@]}"
+expected-exit: e != 0
+expected-stderr-pattern:
+ /read[ -]?only/
+---
+name: syntax-1
+description:
+ Check that lone ampersand is a syntax error
+stdin:
+ &
+expected-exit: e != 0
+expected-stderr-pattern:
+ /syntax error/
+---
+name: xxx-quoted-newline-1
+description:
+ Check that \<newline> works inside of ${}
+stdin:
+ abc=2
+ echo ${ab\
+ c}
+expected-stdout:
+ 2
+---
+name: xxx-quoted-newline-2
+description:
+ Check that \<newline> works at the start of a here document
+stdin:
+ cat << EO\
+ F
+ hi
+ EOF
+expected-stdout:
+ hi
+---
+name: xxx-quoted-newline-3
+description:
+ Check that \<newline> works at the end of a here document
+stdin:
+ cat << EOF
+ hi
+ EO\
+ F
+expected-stdout:
+ hi
+---
+name: xxx-multi-assignment-cmd
+description:
+ Check that assignments in a command affect subsequent assignments
+ in the same command
+stdin:
+ FOO=abc
+ FOO=123 BAR=$FOO
+ echo $BAR
+expected-stdout:
+ 123
+---
+name: xxx-multi-assignment-posix-cmd
+description:
+ Check that the behaviour for multiple assignments with a
+ command name matches POSIX. See:
+ http://thread.gmane.org/gmane.comp.standards.posix.austin.general/1925
+stdin:
+ X=a Y=b; X=$Y Y=$X "$__progname" -c 'echo 1 $X $Y .'; echo 2 $X $Y .
+ unset X Y Z
+ X=a Y=${X=b} Z=$X "$__progname" -c 'echo 3 $Z .'
+ unset X Y Z
+ X=a Y=${X=b} Z=$X; echo 4 $Z .
+expected-stdout:
+ 1 b a .
+ 2 a b .
+ 3 b .
+ 4 a .
+---
+name: xxx-multi-assignment-posix-nocmd
+description:
+ Check that the behaviour for multiple assignments with no
+ command name matches POSIX (Debian #334182). See:
+ http://thread.gmane.org/gmane.comp.standards.posix.austin.general/1925
+stdin:
+ X=a Y=b; X=$Y Y=$X; echo 1 $X $Y .
+expected-stdout:
+ 1 b b .
+---
+name: xxx-multi-assignment-posix-subassign
+description:
+ Check that the behaviour for multiple assignments matches POSIX:
+ - The assignment words shall be expanded in the current execution
+ environment.
+ - The assignments happen in the temporary execution environment.
+stdin:
+ unset X Y Z
+ Z=a Y=${X:=b} sh -c 'echo +$X+ +$Y+ +$Z+'
+ echo /$X/
+ # Now for the special case:
+ unset X Y Z
+ X= Y=${X:=b} sh -c 'echo +$X+ +$Y+'
+ echo /$X/
+expected-stdout:
+ ++ +b+ +a+
+ /b/
+ ++ +b+
+ /b/
+---
+name: xxx-exec-environment-1
+description:
+ Check to see if exec sets it's environment correctly
+stdin:
+ print '#!'"$__progname"'\nunset RANDOM\nexport | while IFS= read -r' \
+ 'RANDOM; do eval '\''print -r -- "$RANDOM=$'\''"$RANDOM"'\'\"\'\; \
+ done >env; chmod +x env; PATH=.:$PATH
+ FOO=bar exec env
+expected-stdout-pattern:
+ /(^|.*\n)FOO=bar\n/
+---
+name: xxx-exec-environment-2
+description:
+ Check to make sure exec doesn't change environment if a program
+ isn't exec-ed
+stdin:
+ print '#!'"$__progname"'\nunset RANDOM\nexport | while IFS= read -r' \
+ 'RANDOM; do eval '\''print -r -- "$RANDOM=$'\''"$RANDOM"'\'\"\'\; \
+ done >env; chmod +x env; PATH=.:$PATH
+ env >bar1
+ FOO=bar exec; env >bar2
+ cmp -s bar1 bar2
+---
+name: exec-function-environment-1
+description:
+ Check assignments in function calls and whether they affect
+ the current execution environment (ksh93, SUSv4)
+stdin:
+ f() { a=2; }; g() { b=3; echo y$c-; }; a=1 f; b=2; c=1 g
+ echo x$a-$b- z$c-
+expected-stdout:
+ y1-
+ x2-3- z1-
+---
+name: xxx-what-do-you-call-this-1
+stdin:
+ echo "${foo:-"a"}*"
+expected-stdout:
+ a*
+---
+name: xxx-prefix-strip-1
+stdin:
+ foo='a cdef'
+ echo ${foo#a c}
+expected-stdout:
+ def
+---
+name: xxx-prefix-strip-2
+stdin:
+ set a c
+ x='a cdef'
+ echo ${x#$*}
+expected-stdout:
+ def
+---
+name: xxx-variable-syntax-1
+stdin:
+ echo ${:}
+expected-stderr-pattern:
+ /bad substitution/
+expected-exit: 1
+---
+name: xxx-variable-syntax-2
+stdin:
+ set 0
+ echo ${*:0}
+expected-stderr-pattern:
+ /bad substitution/
+expected-exit: 1
+---
+name: xxx-variable-syntax-3
+stdin:
+ set -A foo 0
+ echo ${foo[*]:0}
+expected-stderr-pattern:
+ /bad substitution/
+expected-exit: 1
+---
+name: xxx-substitution-eval-order
+description:
+ Check order of evaluation of expressions
+stdin:
+ i=1 x= y=
+ set -A A abc def GHI j G k
+ echo ${A[x=(i+=1)]#${A[y=(i+=2)]}}
+ echo $x $y
+expected-stdout:
+ HI
+ 2 4
+---
+name: xxx-set-option-1
+description:
+ Check option parsing in set
+stdin:
+ set -vsA foo -- A 1 3 2
+ echo ${foo[*]}
+expected-stderr:
+ echo ${foo[*]}
+expected-stdout:
+ 1 2 3 A
+---
+name: xxx-exec-1
+description:
+ Check that exec exits for built-ins
+need-ctty: yes
+arguments: !-i!
+stdin:
+ exec echo hi
+ echo still herre
+expected-stdout:
+ hi
+expected-stderr-pattern: /.*/
+---
+name: xxx-while-1
+description:
+ Check the return value of while loops
+ XXX need to do same for for/select/until loops
+stdin:
+ i=x
+ while [ $i != xxx ] ; do
+ i=x$i
+ if [ $i = xxx ] ; then
+ false
+ continue
+ fi
+ done
+ echo loop1=$?
+
+ i=x
+ while [ $i != xxx ] ; do
+ i=x$i
+ if [ $i = xxx ] ; then
+ false
+ break
+ fi
+ done
+ echo loop2=$?
+
+ i=x
+ while [ $i != xxx ] ; do
+ i=x$i
+ false
+ done
+ echo loop3=$?
+expected-stdout:
+ loop1=0
+ loop2=0
+ loop3=1
+---
+name: xxx-status-1
+description:
+ Check that blank lines don't clear $?
+need-ctty: yes
+arguments: !-i!
+stdin:
+ (exit 1)
+ echo $?
+ (exit 1)
+
+ echo $?
+ true
+expected-stdout:
+ 1
+ 1
+expected-stderr-pattern: /.*/
+---
+name: xxx-status-2
+description:
+ Check that $? is preserved in subshells, includes, traps.
+stdin:
+ (exit 1)
+
+ echo blank: $?
+
+ (exit 2)
+ (echo subshell: $?)
+
+ echo 'echo include: $?' > foo
+ (exit 3)
+ . ./foo
+
+ trap 'echo trap: $?' ERR
+ (exit 4)
+ echo exit: $?
+expected-stdout:
+ blank: 1
+ subshell: 2
+ include: 3
+ trap: 4
+ exit: 4
+---
+name: xxx-clean-chars-1
+description:
+ Check MAGIC character is stuffed correctly
+stdin:
+ echo `echo [\xA3`
+expected-stdout:
+ [\xA3
+---
+name: xxx-param-subst-qmark-1
+description:
+ Check suppresion of error message with null string. According to
+ POSIX, it shouldn't print the error as 'word' isn't ommitted.
+ ksh88/93, Solaris /bin/sh and /usr/xpg4/bin/sh all print the error,
+ that's why the condition is reversed.
+stdin:
+ unset foo
+ x=
+ echo x${foo?$x}
+expected-exit: 1
+# POSIX
+#expected-fail: yes
+#expected-stderr-pattern: !/not set/
+# common use
+expected-stderr-pattern: /parameter null or not set/
+---
+name: xxx-param-_-1
+# fails due to weirdness of execv stuff
+category: !os:uwin-nt
+description:
+ Check c flag is set.
+arguments: !-c!echo "[$-]"!
+expected-stdout-pattern: /^\[.*c.*\]$/
+---
+name: tilde-expand-1
+description:
+ Check tilde expansion after equal signs
+env-setup: !HOME=/sweet!
+stdin:
+ echo ${A=a=}~ b=~ c=d~ ~
+ set +o braceexpand
+ unset A
+ echo ${A=a=}~ b=~ c=d~ ~
+expected-stdout:
+ a=/sweet b=/sweet c=d~ /sweet
+ a=~ b=~ c=d~ /sweet
+---
+name: tilde-expand-2
+description:
+ Check tilde expansion works
+env-setup: !HOME=/sweet!
+stdin:
+ wd=$PWD
+ cd /
+ plus=$(print -r -- ~+)
+ minus=$(print -r -- ~-)
+ nix=$(print -r -- ~)
+ [[ $plus = / ]]; echo one $? .
+ [[ $minus = "$wd" ]]; echo two $? .
+ [[ $nix = /sweet ]]; echo nix $? .
+expected-stdout:
+ one 0 .
+ two 0 .
+ nix 0 .
+---
+name: exit-err-1
+description:
+ Check some "exit on error" conditions
+stdin:
+ print '#!'"$__progname"'\nexec "$1"' >env
+ print '#!'"$__progname"'\nexit 1' >false
+ chmod +x env false
+ PATH=.:$PATH
+ set -ex
+ env false && echo something
+ echo END
+expected-stdout:
+ END
+expected-stderr:
+ + env false
+ + echo END
+---
+name: exit-err-2
+description:
+ Check some "exit on error" edge conditions (POSIXly)
+stdin:
+ print '#!'"$__progname"'\nexec "$1"' >env
+ print '#!'"$__progname"'\nexit 1' >false
+ print '#!'"$__progname"'\nexit 0' >true
+ chmod +x env false
+ PATH=.:$PATH
+ set -ex
+ if env true; then
+ env false && echo something
+ fi
+ echo END
+expected-stdout:
+ END
+expected-stderr:
+ + env true
+ + env false
+ + echo END
+---
+name: exit-err-3
+description:
+ pdksh regression which AT&T ksh does right
+ TFM says: [set] -e | errexit
+ Exit (after executing the ERR trap) ...
+stdin:
+ trap 'echo EXIT' EXIT
+ trap 'echo ERR' ERR
+ set -e
+ cd /XXXXX 2>/dev/null
+ echo DONE
+ exit 0
+expected-stdout:
+ ERR
+ EXIT
+expected-exit: e != 0
+---
+name: exit-err-4
+description:
+ "set -e" test suite (POSIX)
+stdin:
+ set -e
+ echo pre
+ if true ; then
+ false && echo foo
+ fi
+ echo bar
+expected-stdout:
+ pre
+ bar
+---
+name: exit-err-5
+description:
+ "set -e" test suite (POSIX)
+stdin:
+ set -e
+ foo() {
+ while [ "$1" ]; do
+ for E in $x; do
+ [ "$1" = "$E" ] && { shift ; continue 2 ; }
+ done
+ x="$x $1"
+ shift
+ done
+ echo $x
+ }
+ echo pre
+ foo a b b c
+ echo post
+expected-stdout:
+ pre
+ a b c
+ post
+---
+name: exit-err-6
+description:
+ "set -e" test suite (BSD make)
+category: os:mirbsd
+stdin:
+ mkdir zd zd/a zd/b
+ print 'all:\n\t at echo eins\n\t at exit 42\n' >zd/a/Makefile
+ print 'all:\n\t at echo zwei\n' >zd/b/Makefile
+ wd=$(pwd)
+ set -e
+ for entry in a b; do ( set -e; if [[ -d $wd/zd/$entry.i386 ]]; then _newdir_="$entry.i386"; else _newdir_="$entry"; fi; if [[ -z $_THISDIR_ ]]; then _nextdir_="$_newdir_"; else _nextdir_="$_THISDIR_/$_newdir_"; fi; _makefile_spec_=; [[ ! -f $wd/zd/$_newdir_/Makefile.bsd-wrapper ]] || _makefile_spec_="-f Makefile.bsd-wrapper"; subskipdir=; for skipdir in ; do subentry=${skipdir#$entry}; if [[ $subentry != $skipdir ]]; then if [[ -z $subentry ]]; then echo "($_nextdir_ skipped)"; break; fi; subskipdir="$subskipdir ${subentry#/}"; fi; done; if [[ -z $skipdir || -n $subentry ]]; then echo "===> $_nextdir_"; cd $wd/zd/$_newdir_; make SKIPDIR="$subskipdir" $_makefile_spec_ _THISDIR_="$_nextdir_" all; fi; ) done 2>&1 | sed "s!$wd!WD!g"
+expected-stdout:
+ ===> a
+ eins
+ *** Error code 42
+
+ Stop in WD/zd/a (line 2 of Makefile).
+---
+name: exit-err-7
+description:
+ "set -e" regression (LP#1104543)
+stdin:
+ set -e
+ bla() {
+ [ -x $PWD/nonexistant ] && $PWD/nonexistant
+ }
+ echo x
+ bla
+ echo y$?
+expected-stdout:
+ x
+expected-exit: 1
+---
+name: exit-err-8
+description:
+ "set -e" regression (Debian #700526)
+stdin:
+ set -e
+ _db_cmd() { return $1; }
+ db_input() { _db_cmd 30; }
+ db_go() { _db_cmd 0; }
+ db_input || :
+ db_go
+ exit 0
+---
+name: exit-enoent-1
+description:
+ SUSv4 says that the shell should exit with 126/127 in some situations
+stdin:
+ i=0
+ (echo; echo :) >x
+ "$__progname" ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
+ "$__progname" -c ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
+ echo exit 42 >x
+ "$__progname" ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
+ "$__progname" -c ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
+ rm -f x
+ "$__progname" ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
+ "$__progname" -c ./x >/dev/null 2>&1; r=$?; echo $((i++)) $r .
+expected-stdout:
+ 0 0 .
+ 1 126 .
+ 2 42 .
+ 3 126 .
+ 4 127 .
+ 5 127 .
+---
+name: exit-eval-1
+description:
+ Check eval vs substitution exit codes (ksh93 alike)
+stdin:
+ (exit 12)
+ eval $(false)
+ echo A $?
+ (exit 12)
+ eval ' $(false)'
+ echo B $?
+ (exit 12)
+ eval " $(false)"
+ echo C $?
+ (exit 12)
+ eval "eval $(false)"
+ echo D $?
+ (exit 12)
+ eval 'eval '"$(false)"
+ echo E $?
+ IFS="$IFS:"
+ (exit 12)
+ eval $(echo :; false)
+ echo F $?
+ echo -n "G "
+ (exit 12)
+ eval 'echo $?'
+ echo H $?
+expected-stdout:
+ A 0
+ B 1
+ C 0
+ D 0
+ E 0
+ F 0
+ G 12
+ H 0
+---
+name: exit-trap-1
+description:
+ Check that "exit" with no arguments behaves SUSv4 conformant.
+stdin:
+ trap 'echo hi; exit' EXIT
+ exit 9
+expected-stdout:
+ hi
+expected-exit: 9
+---
+name: exit-trap-2
+description:
+ Check that ERR and EXIT traps are run just like ksh93 does.
+ GNU bash does not run ERtrap in ±e eval-undef but runs it
+ twice (bug?) in +e eval-false, so does ksh93 (bug?), which
+ also has a bug to continue execution (echoing "and out" and
+ returning 0) in +e eval-undef.
+file-setup: file 644 "x"
+ v=; unset v
+ trap 'echo EXtrap' EXIT
+ trap 'echo ERtrap' ERR
+ set $1
+ echo "and run $2"
+ eval $2
+ echo and out
+file-setup: file 644 "xt"
+ v=; unset v
+ trap 'echo EXtrap' EXIT
+ trap 'echo ERtrap' ERR
+ set $1
+ echo 'and run true'
+ true
+ echo and out
+file-setup: file 644 "xf"
+ v=; unset v
+ trap 'echo EXtrap' EXIT
+ trap 'echo ERtrap' ERR
+ set $1
+ echo 'and run false'
+ false
+ echo and out
+file-setup: file 644 "xu"
+ v=; unset v
+ trap 'echo EXtrap' EXIT
+ trap 'echo ERtrap' ERR
+ set $1
+ echo 'and run ${v?}'
+ ${v?}
+ echo and out
+stdin:
+ runtest() {
+ rm -f rc
+ (
+ "$__progname" "$@"
+ echo $? >rc
+ ) 2>&1 | sed \
+ -e 's/parameter not set/parameter null or not set/' \
+ -e 's/[[]6]//' -e 's/: eval: line 1//' -e 's/: line 6//' \
+ -e "s^${__progname%.exe}\.*e*x*e*: <stdin>\[[0-9]*]PROG"
+ }
+ xe=-e
+ echo : $xe
+ runtest x $xe true
+ echo = eval-true $(<rc) .
+ runtest x $xe false
+ echo = eval-false $(<rc) .
+ runtest x $xe '${v?}'
+ echo = eval-undef $(<rc) .
+ runtest xt $xe
+ echo = noeval-true $(<rc) .
+ runtest xf $xe
+ echo = noeval-false $(<rc) .
+ runtest xu $xe
+ echo = noeval-undef $(<rc) .
+ xe=+e
+ echo : $xe
+ runtest x $xe true
+ echo = eval-true $(<rc) .
+ runtest x $xe false
+ echo = eval-false $(<rc) .
+ runtest x $xe '${v?}'
+ echo = eval-undef $(<rc) .
+ runtest xt $xe
+ echo = noeval-true $(<rc) .
+ runtest xf $xe
+ echo = noeval-false $(<rc) .
+ runtest xu $xe
+ echo = noeval-undef $(<rc) .
+expected-stdout:
+ : -e
+ and run true
+ and out
+ EXtrap
+ = eval-true 0 .
+ and run false
+ ERtrap
+ EXtrap
+ = eval-false 1 .
+ and run ${v?}
+ x: v: parameter null or not set
+ ERtrap
+ EXtrap
+ = eval-undef 1 .
+ and run true
+ and out
+ EXtrap
+ = noeval-true 0 .
+ and run false
+ ERtrap
+ EXtrap
+ = noeval-false 1 .
+ and run ${v?}
+ xu: v: parameter null or not set
+ EXtrap
+ = noeval-undef 1 .
+ : +e
+ and run true
+ and out
+ EXtrap
+ = eval-true 0 .
+ and run false
+ ERtrap
+ and out
+ EXtrap
+ = eval-false 0 .
+ and run ${v?}
+ x: v: parameter null or not set
+ ERtrap
+ EXtrap
+ = eval-undef 1 .
+ and run true
+ and out
+ EXtrap
+ = noeval-true 0 .
+ and run false
+ ERtrap
+ and out
+ EXtrap
+ = noeval-false 0 .
+ and run ${v?}
+ xu: v: parameter null or not set
+ EXtrap
+ = noeval-undef 1 .
+---
+name: exit-trap-interactive
+description:
+ Check that interactive shell doesn't exit via EXIT trap on syntax error
+arguments: !-i!
+stdin:
+ trap -- EXIT
+ echo Syntax error <
+ echo 'After error 1'
+ trap 'echo Exit trap' EXIT
+ echo Syntax error <
+ echo 'After error 2'
+ trap 'echo Exit trap' EXIT
+ exit
+ echo 'After exit'
+expected-stdout:
+ After error 1
+ After error 2
+ Exit trap
+expected-stderr-pattern:
+ /syntax error: 'newline' unexpected/
+---
+name: test-stlt-1
+description:
+ Check that test also can handle string1 < string2 etc.
+stdin:
+ test 2005/10/08 '<' 2005/08/21 && echo ja || echo nein
+ test 2005/08/21 \< 2005/10/08 && echo ja || echo nein
+ test 2005/10/08 '>' 2005/08/21 && echo ja || echo nein
+ test 2005/08/21 \> 2005/10/08 && echo ja || echo nein
+expected-stdout:
+ nein
+ ja
+ ja
+ nein
+expected-stderr-pattern: !/unexpected op/
+---
+name: test-precedence-1
+description:
+ Check a weird precedence case (and POSIX echo)
+stdin:
+ test \( -f = -f \)
+ rv=$?
+ echo $rv
+expected-stdout:
+ 0
+---
+name: test-option-1
+description:
+ Test the test -o operator
+stdin:
+ runtest() {
+ test -o $1; echo $?
+ [ -o $1 ]; echo $?
+ [[ -o $1 ]]; echo $?
+ }
+ if_test() {
+ test -o $1 -o -o !$1; echo $?
+ [ -o $1 -o -o !$1 ]; echo $?
+ [[ -o $1 || -o !$1 ]]; echo $?
+ test -o ?$1; echo $?
+ }
+ echo 0y $(if_test utf8-mode) =
+ echo 0n $(if_test utf8-hack) =
+ echo 1= $(runtest utf8-hack) =
+ echo 2= $(runtest !utf8-hack) =
+ echo 3= $(runtest ?utf8-hack) =
+ set +U
+ echo 1+ $(runtest utf8-mode) =
+ echo 2+ $(runtest !utf8-mode) =
+ echo 3+ $(runtest ?utf8-mode) =
+ set -U
+ echo 1- $(runtest utf8-mode) =
+ echo 2- $(runtest !utf8-mode) =
+ echo 3- $(runtest ?utf8-mode) =
+ echo = short flags =
+ echo 0y $(if_test -U) =
+ echo 0y $(if_test +U) =
+ echo 0n $(if_test -_) =
+ echo 0n $(if_test -U-) =
+ echo 1= $(runtest -_) =
+ echo 2= $(runtest !-_) =
+ echo 3= $(runtest ?-_) =
+ set +U
+ echo 1+ $(runtest -U) =
+ echo 2+ $(runtest !-U) =
+ echo 3+ $(runtest ?-U) =
+ echo 1+ $(runtest +U) =
+ echo 2+ $(runtest !+U) =
+ echo 3+ $(runtest ?+U) =
+ set -U
+ echo 1- $(runtest -U) =
+ echo 2- $(runtest !-U) =
+ echo 3- $(runtest ?-U) =
+ echo 1- $(runtest +U) =
+ echo 2- $(runtest !+U) =
+ echo 3- $(runtest ?+U) =
+expected-stdout:
+ 0y 0 0 0 0 =
+ 0n 1 1 1 1 =
+ 1= 1 1 1 =
+ 2= 1 1 1 =
+ 3= 1 1 1 =
+ 1+ 1 1 1 =
+ 2+ 0 0 0 =
+ 3+ 0 0 0 =
+ 1- 0 0 0 =
+ 2- 1 1 1 =
+ 3- 0 0 0 =
+ = short flags =
+ 0y 0 0 0 0 =
+ 0y 0 0 0 0 =
+ 0n 1 1 1 1 =
+ 0n 1 1 1 1 =
+ 1= 1 1 1 =
+ 2= 1 1 1 =
+ 3= 1 1 1 =
+ 1+ 1 1 1 =
+ 2+ 0 0 0 =
+ 3+ 0 0 0 =
+ 1+ 1 1 1 =
+ 2+ 0 0 0 =
+ 3+ 0 0 0 =
+ 1- 0 0 0 =
+ 2- 1 1 1 =
+ 3- 0 0 0 =
+ 1- 0 0 0 =
+ 2- 1 1 1 =
+ 3- 0 0 0 =
+---
+name: mkshrc-1
+description:
+ Check that ~/.mkshrc works correctly.
+ Part 1: verify user environment is not read (internal)
+stdin:
+ echo x $FNORD
+expected-stdout:
+ x
+---
+name: mkshrc-2a
+description:
+ Check that ~/.mkshrc works correctly.
+ Part 2: verify mkshrc is not read (non-interactive shells)
+file-setup: file 644 ".mkshrc"
+ FNORD=42
+env-setup: !HOME=.!ENV=!
+stdin:
+ echo x $FNORD
+expected-stdout:
+ x
+---
+name: mkshrc-2b
+description:
+ Check that ~/.mkshrc works correctly.
+ Part 2: verify mkshrc can be read (interactive shells)
+file-setup: file 644 ".mkshrc"
+ FNORD=42
+need-ctty: yes
+arguments: !-i!
+env-setup: !HOME=.!ENV=!PS1=!
+stdin:
+ echo x $FNORD
+expected-stdout:
+ x 42
+expected-stderr-pattern:
+ /(# )*/
+---
+name: mkshrc-3
+description:
+ Check that ~/.mkshrc works correctly.
+ Part 3: verify mkshrc can be turned off
+file-setup: file 644 ".mkshrc"
+ FNORD=42
+env-setup: !HOME=.!ENV=nonexistant!
+stdin:
+ echo x $FNORD
+expected-stdout:
+ x
+---
+name: sh-mode-1
+description:
+ Check that sh mode turns braceexpand off
+ and that that works correctly
+stdin:
+ set -o braceexpand
+ set +o sh
+ [[ $(set +o) == *@(-o sh)@(| *) ]] && echo sh || echo nosh
+ [[ $(set +o) == *@(-o braceexpand)@(| *) ]] && echo brex || echo nobrex
+ echo {a,b,c}
+ set +o braceexpand
+ echo {a,b,c}
+ set -o braceexpand
+ echo {a,b,c}
+ set -o sh
+ echo {a,b,c}
+ [[ $(set +o) == *@(-o sh)@(| *) ]] && echo sh || echo nosh
+ [[ $(set +o) == *@(-o braceexpand)@(| *) ]] && echo brex || echo nobrex
+ set -o braceexpand
+ echo {a,b,c}
+ [[ $(set +o) == *@(-o sh)@(| *) ]] && echo sh || echo nosh
+ [[ $(set +o) == *@(-o braceexpand)@(| *) ]] && echo brex || echo nobrex
+expected-stdout:
+ nosh
+ brex
+ a b c
+ {a,b,c}
+ a b c
+ {a,b,c}
+ sh
+ nobrex
+ a b c
+ sh
+ brex
+---
+name: sh-mode-2a
+description:
+ Check that posix or sh mode is *not* automatically turned on
+category: !binsh
+stdin:
+ ln -s "$__progname" ksh || cp "$__progname" ksh
+ ln -s "$__progname" sh || cp "$__progname" sh
+ ln -s "$__progname" ./-ksh || cp "$__progname" ./-ksh
+ ln -s "$__progname" ./-sh || cp "$__progname" ./-sh
+ for shell in {,-}{,k}sh; do
+ print -- $shell $(./$shell +l -c \
+ '[[ $(set +o) == *"-o "@(sh|posix)@(| *) ]] && echo sh || echo nosh')
+ done
+expected-stdout:
+ sh nosh
+ ksh nosh
+ -sh nosh
+ -ksh nosh
+---
+name: sh-mode-2b
+description:
+ Check that posix or sh mode *is* automatically turned on
+category: binsh
+stdin:
+ ln -s "$__progname" ksh || cp "$__progname" ksh
+ ln -s "$__progname" sh || cp "$__progname" sh
+ ln -s "$__progname" ./-ksh || cp "$__progname" ./-ksh
+ ln -s "$__progname" ./-sh || cp "$__progname" ./-sh
+ for shell in {,-}{,k}sh; do
+ print -- $shell $(./$shell +l -c \
+ '[[ $(set +o) == *"-o "@(sh|posix)@(| *) ]] && echo sh || echo nosh')
+ done
+expected-stdout:
+ sh sh
+ ksh nosh
+ -sh sh
+ -ksh nosh
+---
+name: pipeline-1
+description:
+ pdksh bug: last command of a pipeline is executed in a
+ subshell - make sure it still is, scripts depend on it
+file-setup: file 644 "abcx"
+file-setup: file 644 "abcy"
+stdin:
+ echo *
+ echo a | while read d; do
+ echo $d
+ echo $d*
+ echo *
+ set -o noglob
+ echo $d*
+ echo *
+ done
+ echo *
+expected-stdout:
+ abcx abcy
+ a
+ abcx abcy
+ abcx abcy
+ a*
+ *
+ abcx abcy
+---
+name: pipeline-2
+description:
+ check that co-processes work with TCOMs, TPIPEs and TPARENs
+category: !nojsig
+stdin:
+ "$__progname" -c 'i=100; echo hi |& while read -p line; do echo "$((i++)) $line"; done'
+ "$__progname" -c 'i=200; echo hi | cat |& while read -p line; do echo "$((i++)) $line"; done'
+ "$__progname" -c 'i=300; (echo hi | cat) |& while read -p line; do echo "$((i++)) $line"; done'
+expected-stdout:
+ 100 hi
+ 200 hi
+ 300 hi
+---
+name: pipeline-3
+description:
+ Check that PIPESTATUS does what it's supposed to
+stdin:
+ echo 1 $PIPESTATUS .
+ echo 2 ${PIPESTATUS[0]} .
+ echo 3 ${PIPESTATUS[1]} .
+ (echo x; exit 12) | (cat; exit 23) | (cat; exit 42)
+ echo 5 $? , $PIPESTATUS , ${PIPESTATUS[0]} , ${PIPESTATUS[1]} , ${PIPESTATUS[2]} , ${PIPESTATUS[3]} .
+ echo 6 ${PIPESTATUS[0]} .
+ set | fgrep PIPESTATUS
+ echo 8 $(set | fgrep PIPESTATUS) .
+expected-stdout:
+ 1 0 .
+ 2 0 .
+ 3 .
+ x
+ 5 42 , 12 , 12 , 23 , 42 , .
+ 6 0 .
+ PIPESTATUS[0]=0
+ 8 PIPESTATUS[0]=0 PIPESTATUS[1]=0 .
+---
+name: pipeline-4
+description:
+ Check that "set -o pipefail" does what it's supposed to
+stdin:
+ echo 1 "$("$__progname" -c '(exit 12) | (exit 23) | (exit 42); echo $?')" .
+ echo 2 "$("$__progname" -c '! (exit 12) | (exit 23) | (exit 42); echo $?')" .
+ echo 3 "$("$__progname" -o pipefail -c '(exit 12) | (exit 23) | (exit 42); echo $?')" .
+ echo 4 "$("$__progname" -o pipefail -c '! (exit 12) | (exit 23) | (exit 42); echo $?')" .
+ echo 5 "$("$__progname" -c '(exit 23) | (exit 42) | :; echo $?')" .
+ echo 6 "$("$__progname" -c '! (exit 23) | (exit 42) | :; echo $?')" .
+ echo 7 "$("$__progname" -o pipefail -c '(exit 23) | (exit 42) | :; echo $?')" .
+ echo 8 "$("$__progname" -o pipefail -c '! (exit 23) | (exit 42) | :; echo $?')" .
+ echo 9 "$("$__progname" -o pipefail -c 'x=$( (exit 23) | (exit 42) | :); echo $?')" .
+expected-stdout:
+ 1 42 .
+ 2 0 .
+ 3 42 .
+ 4 0 .
+ 5 0 .
+ 6 1 .
+ 7 42 .
+ 8 0 .
+ 9 42 .
+---
+name: persist-history-1
+description:
+ Check if persistent history saving works
+category: !no-histfile
+need-ctty: yes
+arguments: !-i!
+env-setup: !ENV=./Env!HISTFILE=hist.file!
+file-setup: file 644 "Env"
+ PS1=X
+stdin:
+ cat hist.file
+expected-stdout-pattern:
+ /cat hist.file/
+expected-stderr-pattern:
+ /^X*$/
+---
+name: typeset-1
+description:
+ Check that global does what typeset is supposed to do
+stdin:
+ set -A arrfoo 65
+ foo() {
+ global -Uui16 arrfoo[*]
+ }
+ echo before ${arrfoo[0]} .
+ foo
+ echo after ${arrfoo[0]} .
+ set -A arrbar 65
+ bar() {
+ echo inside before ${arrbar[0]} .
+ arrbar[0]=97
+ echo inside changed ${arrbar[0]} .
+ global -Uui16 arrbar[*]
+ echo inside typeset ${arrbar[0]} .
+ arrbar[0]=48
+ echo inside changed ${arrbar[0]} .
+ }
+ echo before ${arrbar[0]} .
+ bar
+ echo after ${arrbar[0]} .
+expected-stdout:
+ before 65 .
+ after 16#41 .
+ before 65 .
+ inside before 65 .
+ inside changed 97 .
+ inside typeset 16#61 .
+ inside changed 16#30 .
+ after 16#30 .
+---
+name: typeset-padding-1
+description:
+ Check if left/right justification works as per TFM
+stdin:
+ typeset -L10 ln=0hall0
+ typeset -R10 rn=0hall0
+ typeset -ZL10 lz=0hall0
+ typeset -ZR10 rz=0hall0
+ typeset -Z10 rx=" hallo "
+ echo "<$ln> <$rn> <$lz> <$rz> <$rx>"
+expected-stdout:
+ <0hall0 > < 0hall0> <hall0 > <00000hall0> <0000 hallo>
+---
+name: typeset-padding-2
+description:
+ Check if base-!10 integers are padded right
+stdin:
+ typeset -Uui16 -L9 ln=16#1
+ typeset -Uui16 -R9 rn=16#1
+ typeset -Uui16 -Z9 zn=16#1
+ typeset -L9 ls=16#1
+ typeset -R9 rs=16#1
+ typeset -Z9 zs=16#1
+ echo "<$ln> <$rn> <$zn> <$ls> <$rs> <$zs>"
+expected-stdout:
+ <16#1 > < 16#1> <16#000001> <16#1 > < 16#1> <0000016#1>
+---
+name: utf8bom-1
+description:
+ Check that the UTF-8 Byte Order Mark is ignored as the first
+ multibyte character of the shell input (with -c, from standard
+ input, as file, or as eval argument), but nowhere else
+# breaks on Mac OSX (HFS+ non-standard Unicode canonical decomposition)
+category: !os:darwin
+stdin:
+ mkdir foo
+ print '#!/bin/sh\necho ohne' >foo/fnord
+ print '#!/bin/sh\necho mit' >foo/fnord
+ print 'fnord\nfnord\nfnord\nfnord' >foo/bar
+ print eval \''fnord\nfnord\nfnord\nfnord'\' >foo/zoo
+ set -A anzahl -- foo/*
+ echo got ${#anzahl[*]} files
+ chmod +x foo/*
+ export PATH=$(pwd)/foo:$PATH
+ "$__progname" -c 'fnord'
+ echo =
+ "$__progname" -c 'fnord; fnord; fnord; fnord'
+ echo =
+ "$__progname" foo/bar
+ echo =
+ "$__progname" <foo/bar
+ echo =
+ "$__progname" foo/zoo
+ echo =
+ "$__progname" -c 'echo : $(fnord)'
+ rm -rf foo
+expected-stdout:
+ got 4 files
+ ohne
+ =
+ ohne
+ ohne
+ mit
+ ohne
+ =
+ ohne
+ ohne
+ mit
+ ohne
+ =
+ ohne
+ ohne
+ mit
+ ohne
+ =
+ ohne
+ ohne
+ mit
+ ohne
+ =
+ : ohne
+---
+name: utf8bom-2
+description:
+ Check that we can execute BOM-shebangs (failures not fatal)
+ XXX if the OS can already execute them, we lose
+ note: cygwin execve(2) doesn't return to us with ENOEXEC, we lose
+ note: Ultrix perl5 t4 returns 65280 (exit-code 255) and no text
+need-pass: no
+category: !os:cygwin,!os:msys,!os:ultrix,!os:uwin-nt,!smksh
+env-setup: !FOO=BAR!
+stdin:
+ print '#!'"$__progname"'\nprint "1 a=$ENV{FOO}";' >t1
+ print '#!'"$__progname"'\nprint "2 a=$ENV{FOO}";' >t2
+ print '#!'"$__perlname"'\nprint "3 a=$ENV{FOO}\n";' >t3
+ print '#!'"$__perlname"'\nprint "4 a=$ENV{FOO}\n";' >t4
+ chmod +x t?
+ ./t1
+ ./t2
+ ./t3
+ ./t4
+expected-stdout:
+ 1 a=/nonexistant{FOO}
+ 2 a=/nonexistant{FOO}
+ 3 a=BAR
+ 4 a=BAR
+expected-stderr-pattern:
+ /(Unrecognized character .... ignored at \..t4 line 1)*/
+---
+name: utf8opt-1a
+description:
+ Check that the utf8-mode flag is not set at non-interactive startup
+category: !os:hpux
+env-setup: !PS1=!PS2=!LC_CTYPE=en_US.UTF-8!
+stdin:
+ if [[ $- = *U* ]]; then
+ echo is set
+ else
+ echo is not set
+ fi
+expected-stdout:
+ is not set
+---
+name: utf8opt-1b
+description:
+ Check that the utf8-mode flag is not set at non-interactive startup
+category: os:hpux
+env-setup: !PS1=!PS2=!LC_CTYPE=en_US.utf8!
+stdin:
+ if [[ $- = *U* ]]; then
+ echo is set
+ else
+ echo is not set
+ fi
+expected-stdout:
+ is not set
+---
+name: utf8opt-2a
+description:
+ Check that the utf8-mode flag is set at interactive startup.
+ -DMKSH_ASSUME_UTF8=0 => expected failure, please ignore
+ -DMKSH_ASSUME_UTF8=1 => not expected, please investigate
+ -UMKSH_ASSUME_UTF8 => not expected, but if your OS is old,
+ try passing HAVE_SETLOCALE_CTYPE=0 to Build.sh
+need-pass: no
+category: !os:hpux,!os:msys
+need-ctty: yes
+arguments: !-i!
+env-setup: !PS1=!PS2=!LC_CTYPE=en_US.UTF-8!
+stdin:
+ if [[ $- = *U* ]]; then
+ echo is set
+ else
+ echo is not set
+ fi
+expected-stdout:
+ is set
+expected-stderr-pattern:
+ /(# )*/
+---
+name: utf8opt-2b
+description:
+ Check that the utf8-mode flag is set at interactive startup
+ Expected failure if -DMKSH_ASSUME_UTF8=0
+category: os:hpux
+need-ctty: yes
+arguments: !-i!
+env-setup: !PS1=!PS2=!LC_CTYPE=en_US.utf8!
+stdin:
+ if [[ $- = *U* ]]; then
+ echo is set
+ else
+ echo is not set
+ fi
+expected-stdout:
+ is set
+expected-stderr-pattern:
+ /(# )*/
+---
+name: utf8opt-3a
+description:
+ Ensure ±U on the command line is honoured
+ (these two tests may pass falsely depending on CPPFLAGS)
+stdin:
+ export i=0
+ code='if [[ $- = *U* ]]; then echo $i on; else echo $i off; fi'
+ let i++; "$__progname" -U -c "$code"
+ let i++; "$__progname" +U -c "$code"
+ echo $((++i)) done
+expected-stdout:
+ 1 on
+ 2 off
+ 3 done
+---
+name: utf8opt-3b
+description:
+ Ensure ±U on the command line is honoured, interactive shells
+need-ctty: yes
+stdin:
+ export i=0
+ code='if [[ $- = *U* ]]; then echo $i on; else echo $i off; fi'
+ let i++; "$__progname" -U -ic "$code"
+ let i++; "$__progname" +U -ic "$code"
+ echo $((++i)) done
+expected-stdout:
+ 1 on
+ 2 off
+ 3 done
+---
+name: aliases-1
+description:
+ Check if built-in shell aliases are okay
+category: !android,!arge
+stdin:
+ alias
+ typeset -f
+expected-stdout:
+ autoload='typeset -fu'
+ functions='typeset -f'
+ hash='alias -t'
+ history='fc -l'
+ integer='typeset -i'
+ local=typeset
+ login='exec login'
+ nameref='typeset -n'
+ nohup='nohup '
+ r='fc -e -'
+ source='PATH=$PATH:. command .'
+ stop='kill -STOP'
+ type='whence -v'
+---
+name: aliases-1-hartz4
+description:
+ Check if built-in shell aliases are okay
+category: android,arge
+stdin:
+ alias
+ typeset -f
+expected-stdout:
+ autoload='typeset -fu'
+ functions='typeset -f'
+ hash='alias -t'
+ history='fc -l'
+ integer='typeset -i'
+ local=typeset
+ login='exec login'
+ nameref='typeset -n'
+ nohup='nohup '
+ r='fc -e -'
+ source='PATH=$PATH:. command .'
+ type='whence -v'
+---
+name: aliases-2a
+description:
+ Check if “set -o sh” disables built-in aliases (except a few)
+category: disabled
+arguments: !-o!sh!
+stdin:
+ alias
+ typeset -f
+expected-stdout:
+ integer='typeset -i'
+ local=typeset
+---
+name: aliases-3a
+description:
+ Check if running as sh disables built-in aliases (except a few)
+category: disabled
+stdin:
+ cp "$__progname" sh
+ ./sh -c 'alias; typeset -f'
+ rm -f sh
+expected-stdout:
+ integer='typeset -i'
+ local=typeset
+---
+name: aliases-2b
+description:
+ Check if “set -o sh” does not influence built-in aliases
+category: !android,!arge
+arguments: !-o!sh!
+stdin:
+ alias
+ typeset -f
+expected-stdout:
+ autoload='typeset -fu'
+ functions='typeset -f'
+ hash='alias -t'
+ history='fc -l'
+ integer='typeset -i'
+ local=typeset
+ login='exec login'
+ nameref='typeset -n'
+ nohup='nohup '
+ r='fc -e -'
+ source='PATH=$PATH:. command .'
+ stop='kill -STOP'
+ type='whence -v'
+---
+name: aliases-3b
+description:
+ Check if running as sh does not influence built-in aliases
+category: !android,!arge
+stdin:
+ cp "$__progname" sh
+ ./sh -c 'alias; typeset -f'
+ rm -f sh
+expected-stdout:
+ autoload='typeset -fu'
+ functions='typeset -f'
+ hash='alias -t'
+ history='fc -l'
+ integer='typeset -i'
+ local=typeset
+ login='exec login'
+ nameref='typeset -n'
+ nohup='nohup '
+ r='fc -e -'
+ source='PATH=$PATH:. command .'
+ stop='kill -STOP'
+ type='whence -v'
+---
+name: aliases-2b-hartz4
+description:
+ Check if “set -o sh” does not influence built-in aliases
+category: android,arge
+arguments: !-o!sh!
+stdin:
+ alias
+ typeset -f
+expected-stdout:
+ autoload='typeset -fu'
+ functions='typeset -f'
+ hash='alias -t'
+ history='fc -l'
+ integer='typeset -i'
+ local=typeset
+ login='exec login'
+ nameref='typeset -n'
+ nohup='nohup '
+ r='fc -e -'
+ source='PATH=$PATH:. command .'
+ type='whence -v'
+---
+name: aliases-3b-hartz4
+description:
+ Check if running as sh does not influence built-in aliases
+category: android,arge
+stdin:
+ cp "$__progname" sh
+ ./sh -c 'alias; typeset -f'
+ rm -f sh
+expected-stdout:
+ autoload='typeset -fu'
+ functions='typeset -f'
+ hash='alias -t'
+ history='fc -l'
+ integer='typeset -i'
+ local=typeset
+ login='exec login'
+ nameref='typeset -n'
+ nohup='nohup '
+ r='fc -e -'
+ source='PATH=$PATH:. command .'
+ type='whence -v'
+---
+name: aliases-cmdline
+description:
+ Check that aliases work from the command line (Debian #517009)
+ Note that due to the nature of the lexing process, defining
+ aliases in COMSUBs then immediately using them, and things
+ like 'alias foo=bar && foo', still fail.
+stdin:
+ "$__progname" -c $'alias a="echo OK"\na'
+expected-stdout:
+ OK
+---
+name: aliases-funcdef-1
+description:
+ Check if POSIX functions take precedences over aliases
+stdin:
+ alias foo='echo makro'
+ foo() {
+ echo funktion
+ }
+ foo
+expected-stdout:
+ funktion
+---
+name: aliases-funcdef-2
+description:
+ Check if POSIX functions take precedences over aliases
+stdin:
+ alias foo='echo makro'
+ foo () {
+ echo funktion
+ }
+ foo
+expected-stdout:
+ funktion
+---
+name: aliases-funcdef-3
+description:
+ Check if aliases take precedences over Korn functions
+stdin:
+ alias foo='echo makro'
+ function foo {
+ echo funktion
+ }
+ foo
+expected-stdout:
+ makro
+---
+name: aliases-funcdef-4
+description:
+ Functions should only take over if actually being defined
+stdin:
+ alias local
+ :|| local() { :; }
+ alias local
+expected-stdout:
+ local=typeset
+ local=typeset
+---
+name: arrays-1
+description:
+ Check if Korn Shell arrays work as expected
+stdin:
+ v="c d"
+ set -A foo -- a \$v "$v" '$v' b
+ echo "${#foo[*]}|${foo[0]}|${foo[1]}|${foo[2]}|${foo[3]}|${foo[4]}|"
+expected-stdout:
+ 5|a|$v|c d|$v|b|
+---
+name: arrays-2a
+description:
+ Check if bash-style arrays work as expected
+stdin:
+ v="c d"
+ foo=(a \$v "$v" '$v' b)
+ echo "${#foo[*]}|${foo[0]}|${foo[1]}|${foo[2]}|${foo[3]}|${foo[4]}|"
+expected-stdout:
+ 5|a|$v|c d|$v|b|
+---
+name: arrays-2b
+description:
+ Check if bash-style arrays work as expected, with newlines
+stdin:
+ print '#!'"$__progname"'\nfor x in "$@"; do print -nr -- "$x|"; done' >pfp
+ chmod +x pfp
+ test -n "$ZSH_VERSION" && setopt KSH_ARRAYS
+ v="e f"
+ foo=(a
+ bc
+ d \$v "$v" '$v' g
+ )
+ ./pfp "${#foo[*]}" "${foo[0]}" "${foo[1]}" "${foo[2]}" "${foo[3]}" "${foo[4]}" "${foo[5]}" "${foo[6]}"; echo
+ foo=(a\
+ bc
+ d \$v "$v" '$v' g
+ )
+ ./pfp "${#foo[*]}" "${foo[0]}" "${foo[1]}" "${foo[2]}" "${foo[3]}" "${foo[4]}" "${foo[5]}" "${foo[6]}"; echo
+ foo=(a\
+ bc\\
+ d \$v "$v" '$v'
+ g)
+ ./pfp "${#foo[*]}" "${foo[0]}" "${foo[1]}" "${foo[2]}" "${foo[3]}" "${foo[4]}" "${foo[5]}" "${foo[6]}"; echo
+expected-stdout:
+ 7|a|bc|d|$v|e f|$v|g|
+ 7|a|bc|d|$v|e f|$v|g|
+ 6|abc\|d|$v|e f|$v|g||
+---
+name: arrays-3
+description:
+ Check if array bounds are uint32_t
+stdin:
+ set -A foo a b c
+ foo[4097]=d
+ foo[2147483637]=e
+ echo ${foo[*]}
+ foo[-1]=f
+ echo ${foo[4294967295]} g ${foo[*]}
+expected-stdout:
+ a b c d e
+ f g a b c d e f
+---
+name: arrays-4
+description:
+ Check if Korn Shell arrays with specified indices work as expected
+stdin:
+ v="c d"
+ set -A foo -- [1]=\$v [2]="$v" [4]='$v' [0]=a [5]=b
+ echo "${#foo[*]}|${foo[0]}|${foo[1]}|${foo[2]}|${foo[3]}|${foo[4]}|${foo[5]}|"
+ # we don't want this at all:
+ # 5|a|$v|c d||$v|b|
+ set -A arr "[5]=meh"
+ echo "<${arr[0]}><${arr[5]}>"
+expected-stdout:
+ 5|[1]=$v|[2]=c d|[4]=$v|[0]=a|[5]=b||
+ <[5]=meh><>
+---
+name: arrays-5
+description:
+ Check if bash-style arrays with specified indices work as expected
+ (taken out temporarily to fix arrays-4; see also arrays-9a comment)
+category: disabled
+stdin:
+ v="c d"
+ foo=([1]=\$v [2]="$v" [4]='$v' [0]=a [5]=b)
+ echo "${#foo[*]}|${foo[0]}|${foo[1]}|${foo[2]}|${foo[3]}|${foo[4]}|${foo[5]}|"
+ x=([128]=foo bar baz)
+ echo k= ${!x[*]} .
+ echo v= ${x[*]} .
+ # Check that we do not break this by globbing
+ :>b=blah
+ bleh=5
+ typeset -a arr
+ arr+=([bleh]=blah)
+ echo "<${arr[0]}><${arr[5]}>"
+expected-stdout:
+ 5|a|$v|c d||$v|b|
+ k= 128 129 130 .
+ v= foo bar baz .
+ <><blah>
+---
+name: arrays-6
+description:
+ Check if we can get the array keys (indices) for indexed arrays,
+ Korn shell style
+stdin:
+ of() {
+ i=0
+ for x in "$@"; do
+ echo -n "$((i++))<$x>"
+ done
+ echo
+ }
+ foo[1]=eins
+ set | grep '^foo'
+ echo =
+ foo[0]=zwei
+ foo[4]=drei
+ set | grep '^foo'
+ echo =
+ echo a $(of ${foo[*]}) = $(of ${bar[*]}) a
+ echo b $(of "${foo[*]}") = $(of "${bar[*]}") b
+ echo c $(of ${foo[@]}) = $(of ${bar[@]}) c
+ echo d $(of "${foo[@]}") = $(of "${bar[@]}") d
+ echo e $(of ${!foo[*]}) = $(of ${!bar[*]}) e
+ echo f $(of "${!foo[*]}") = $(of "${!bar[*]}") f
+ echo g $(of ${!foo[@]}) = $(of ${!bar[@]}) g
+ echo h $(of "${!foo[@]}") = $(of "${!bar[@]}") h
+expected-stdout:
+ foo[1]=eins
+ =
+ foo[0]=zwei
+ foo[1]=eins
+ foo[4]=drei
+ =
+ a 0<zwei>1<eins>2<drei> = a
+ b 0<zwei eins drei> = 0<> b
+ c 0<zwei>1<eins>2<drei> = c
+ d 0<zwei>1<eins>2<drei> = d
+ e 0<0>1<1>2<4> = e
+ f 0<0 1 4> = 0<> f
+ g 0<0>1<1>2<4> = g
+ h 0<0>1<1>2<4> = h
+---
+name: arrays-7
+description:
+ Check if we can get the array keys (indices) for indexed arrays,
+ Korn shell style, in some corner cases
+stdin:
+ echo !arz: ${!arz}
+ echo !arz[0]: ${!arz[0]}
+ echo !arz[1]: ${!arz[1]}
+ arz=foo
+ echo !arz: ${!arz}
+ echo !arz[0]: ${!arz[0]}
+ echo !arz[1]: ${!arz[1]}
+ unset arz
+ echo !arz: ${!arz}
+ echo !arz[0]: ${!arz[0]}
+ echo !arz[1]: ${!arz[1]}
+expected-stdout:
+ !arz: arz
+ !arz[0]: arz[0]
+ !arz[1]: arz[1]
+ !arz: arz
+ !arz[0]: arz[0]
+ !arz[1]: arz[1]
+ !arz: arz
+ !arz[0]: arz[0]
+ !arz[1]: arz[1]
+---
+name: arrays-8
+description:
+ Check some behavioural rules for arrays.
+stdin:
+ fna() {
+ set -A aa 9
+ }
+ fnb() {
+ typeset ab
+ set -A ab 9
+ }
+ fnc() {
+ typeset ac
+ set -A ac 91
+ unset ac
+ set -A ac 92
+ }
+ fnd() {
+ set +A ad 9
+ }
+ fne() {
+ unset ae
+ set +A ae 9
+ }
+ fnf() {
+ unset af[0]
+ set +A af 9
+ }
+ fng() {
+ unset ag[*]
+ set +A ag 9
+ }
+ set -A aa 1 2
+ set -A ab 1 2
+ set -A ac 1 2
+ set -A ad 1 2
+ set -A ae 1 2
+ set -A af 1 2
+ set -A ag 1 2
+ set -A ah 1 2
+ typeset -Z3 aa ab ac ad ae af ag
+ print 1a ${aa[*]} .
+ print 1b ${ab[*]} .
+ print 1c ${ac[*]} .
+ print 1d ${ad[*]} .
+ print 1e ${ae[*]} .
+ print 1f ${af[*]} .
+ print 1g ${ag[*]} .
+ print 1h ${ah[*]} .
+ fna
+ fnb
+ fnc
+ fnd
+ fne
+ fnf
+ fng
+ typeset -Z5 ah[*]
+ print 2a ${aa[*]} .
+ print 2b ${ab[*]} .
+ print 2c ${ac[*]} .
+ print 2d ${ad[*]} .
+ print 2e ${ae[*]} .
+ print 2f ${af[*]} .
+ print 2g ${ag[*]} .
+ print 2h ${ah[*]} .
+expected-stdout:
+ 1a 001 002 .
+ 1b 001 002 .
+ 1c 001 002 .
+ 1d 001 002 .
+ 1e 001 002 .
+ 1f 001 002 .
+ 1g 001 002 .
+ 1h 1 2 .
+ 2a 9 .
+ 2b 001 002 .
+ 2c 92 .
+ 2d 009 002 .
+ 2e 9 .
+ 2f 9 002 .
+ 2g 009 .
+ 2h 00001 00002 .
+---
+name: arrays-9a
+description:
+ Check that we can concatenate arrays
+stdin:
+ unset foo; foo=(bar); foo+=(baz); echo 1 ${!foo[*]} : ${foo[*]} .
+ unset foo; foo=(foo bar); foo+=(baz); echo 2 ${!foo[*]} : ${foo[*]} .
+# unset foo; foo=([2]=foo [0]=bar); foo+=(baz [5]=quux); echo 3 ${!foo[*]} : ${foo[*]} .
+expected-stdout:
+ 1 0 1 : bar baz .
+ 2 0 1 2 : foo bar baz .
+# 3 0 2 3 5 : bar foo baz quux .
+---
+name: arrays-9b
+description:
+ Check that we can concatenate parameters too
+stdin:
+ unset foo; foo=bar; foo+=baz; echo 1 $foo .
+ unset foo; typeset -i16 foo=10; foo+=20; echo 2 $foo .
+expected-stdout:
+ 1 barbaz .
+ 2 16#a20 .
+---
+name: arrassign-basic
+description:
+ Check basic whitespace conserving properties of wdarrassign
+stdin:
+ a=($(echo a b))
+ b=($(echo "a b"))
+ c=("$(echo "a b")")
+ d=("$(echo a b)")
+ a+=($(echo c d))
+ b+=($(echo "c d"))
+ c+=("$(echo "c d")")
+ d+=("$(echo c d)")
+ echo ".a:${a[0]}.${a[1]}.${a[2]}.${a[3]}:"
+ echo ".b:${b[0]}.${b[1]}.${b[2]}.${b[3]}:"
+ echo ".c:${c[0]}.${c[1]}.${c[2]}.${c[3]}:"
+ echo ".d:${d[0]}.${d[1]}.${d[2]}.${d[3]}:"
+expected-stdout:
+ .a:a.b.c.d:
+ .b:a.b.c.d:
+ .c:a b.c d..:
+ .d:a b.c d..:
+---
+name: arrassign-fnc-none
+description:
+ Check locality of array access inside a function
+stdin:
+ function fn {
+ x+=(f)
+ echo ".fn:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ }
+ function rfn {
+ if [[ -n $BASH_VERSION ]]; then
+ y=()
+ else
+ set -A y
+ fi
+ y+=(f)
+ echo ".rfn:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+ }
+ x=(m m)
+ y=(m m)
+ echo ".f0:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ fn
+ echo ".f1:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ fn
+ echo ".f2:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ echo ".rf0:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+ rfn
+ echo ".rf1:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+ rfn
+ echo ".rf2:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+expected-stdout:
+ .f0:m.m..:
+ .fn:m.m.f.:
+ .f1:m.m.f.:
+ .fn:m.m.f.f:
+ .f2:m.m.f.f:
+ .rf0:m.m..:
+ .rfn:f...:
+ .rf1:f...:
+ .rfn:f...:
+ .rf2:f...:
+---
+name: arrassign-fnc-local
+description:
+ Check locality of array access inside a function
+ with the bash/mksh/ksh93 local/typeset keyword
+ (note: ksh93 has no local; typeset works only in FKSH)
+stdin:
+ function fn {
+ typeset x
+ x+=(f)
+ echo ".fn:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ }
+ function rfn {
+ if [[ -n $BASH_VERSION ]]; then
+ y=()
+ else
+ set -A y
+ fi
+ typeset y
+ y+=(f)
+ echo ".rfn:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+ }
+ function fnr {
+ typeset z
+ if [[ -n $BASH_VERSION ]]; then
+ z=()
+ else
+ set -A z
+ fi
+ z+=(f)
+ echo ".fnr:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
+ }
+ x=(m m)
+ y=(m m)
+ z=(m m)
+ echo ".f0:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ fn
+ echo ".f1:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ fn
+ echo ".f2:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ echo ".rf0:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+ rfn
+ echo ".rf1:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+ rfn
+ echo ".rf2:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+ echo ".f0r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
+ fnr
+ echo ".f1r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
+ fnr
+ echo ".f2r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
+expected-stdout:
+ .f0:m.m..:
+ .fn:f...:
+ .f1:m.m..:
+ .fn:f...:
+ .f2:m.m..:
+ .rf0:m.m..:
+ .rfn:f...:
+ .rf1:...:
+ .rfn:f...:
+ .rf2:...:
+ .f0r:m.m..:
+ .fnr:f...:
+ .f1r:m.m..:
+ .fnr:f...:
+ .f2r:m.m..:
+---
+name: arrassign-fnc-global
+description:
+ Check locality of array access inside a function
+ with the mksh-specific global keyword
+stdin:
+ function fn {
+ global x
+ x+=(f)
+ echo ".fn:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ }
+ function rfn {
+ set -A y
+ global y
+ y+=(f)
+ echo ".rfn:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+ }
+ function fnr {
+ global z
+ set -A z
+ z+=(f)
+ echo ".fnr:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
+ }
+ x=(m m)
+ y=(m m)
+ z=(m m)
+ echo ".f0:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ fn
+ echo ".f1:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ fn
+ echo ".f2:${x[0]}.${x[1]}.${x[2]}.${x[3]}:"
+ echo ".rf0:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+ rfn
+ echo ".rf1:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+ rfn
+ echo ".rf2:${y[0]}.${y[1]}.${y[2]}.${y[3]}:"
+ echo ".f0r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
+ fnr
+ echo ".f1r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
+ fnr
+ echo ".f2r:${z[0]}.${z[1]}.${z[2]}.${z[3]}:"
+expected-stdout:
+ .f0:m.m..:
+ .fn:m.m.f.:
+ .f1:m.m.f.:
+ .fn:m.m.f.f:
+ .f2:m.m.f.f:
+ .rf0:m.m..:
+ .rfn:f...:
+ .rf1:f...:
+ .rfn:f...:
+ .rf2:f...:
+ .f0r:m.m..:
+ .fnr:f...:
+ .f1r:f...:
+ .fnr:f...:
+ .f2r:f...:
+---
+name: strassign-fnc-none
+description:
+ Check locality of string access inside a function
+stdin:
+ function fn {
+ x+=f
+ echo ".fn:$x:"
+ }
+ function rfn {
+ y=
+ y+=f
+ echo ".rfn:$y:"
+ }
+ x=m
+ y=m
+ echo ".f0:$x:"
+ fn
+ echo ".f1:$x:"
+ fn
+ echo ".f2:$x:"
+ echo ".rf0:$y:"
+ rfn
+ echo ".rf1:$y:"
+ rfn
+ echo ".rf2:$y:"
+expected-stdout:
+ .f0:m:
+ .fn:mf:
+ .f1:mf:
+ .fn:mff:
+ .f2:mff:
+ .rf0:m:
+ .rfn:f:
+ .rf1:f:
+ .rfn:f:
+ .rf2:f:
+---
+name: strassign-fnc-local
+description:
+ Check locality of string access inside a function
+ with the bash/mksh/ksh93 local/typeset keyword
+ (note: ksh93 has no local; typeset works only in FKSH)
+stdin:
+ function fn {
+ typeset x
+ x+=f
+ echo ".fn:$x:"
+ }
+ function rfn {
+ y=
+ typeset y
+ y+=f
+ echo ".rfn:$y:"
+ }
+ function fnr {
+ typeset z
+ z=
+ z+=f
+ echo ".fnr:$z:"
+ }
+ x=m
+ y=m
+ z=m
+ echo ".f0:$x:"
+ fn
+ echo ".f1:$x:"
+ fn
+ echo ".f2:$x:"
+ echo ".rf0:$y:"
+ rfn
+ echo ".rf1:$y:"
+ rfn
+ echo ".rf2:$y:"
+ echo ".f0r:$z:"
+ fnr
+ echo ".f1r:$z:"
+ fnr
+ echo ".f2r:$z:"
+expected-stdout:
+ .f0:m:
+ .fn:f:
+ .f1:m:
+ .fn:f:
+ .f2:m:
+ .rf0:m:
+ .rfn:f:
+ .rf1::
+ .rfn:f:
+ .rf2::
+ .f0r:m:
+ .fnr:f:
+ .f1r:m:
+ .fnr:f:
+ .f2r:m:
+---
+name: strassign-fnc-global
+description:
+ Check locality of string access inside a function
+ with the mksh-specific global keyword
+stdin:
+ function fn {
+ global x
+ x+=f
+ echo ".fn:$x:"
+ }
+ function rfn {
+ y=
+ global y
+ y+=f
+ echo ".rfn:$y:"
+ }
+ function fnr {
+ global z
+ z=
+ z+=f
+ echo ".fnr:$z:"
+ }
+ x=m
+ y=m
+ z=m
+ echo ".f0:$x:"
+ fn
+ echo ".f1:$x:"
+ fn
+ echo ".f2:$x:"
+ echo ".rf0:$y:"
+ rfn
+ echo ".rf1:$y:"
+ rfn
+ echo ".rf2:$y:"
+ echo ".f0r:$z:"
+ fnr
+ echo ".f1r:$z:"
+ fnr
+ echo ".f2r:$z:"
+expected-stdout:
+ .f0:m:
+ .fn:mf:
+ .f1:mf:
+ .fn:mff:
+ .f2:mff:
+ .rf0:m:
+ .rfn:f:
+ .rf1:f:
+ .rfn:f:
+ .rf2:f:
+ .f0r:m:
+ .fnr:f:
+ .f1r:f:
+ .fnr:f:
+ .f2r:f:
+---
+name: varexpand-substr-1
+description:
+ Check if bash-style substring expansion works
+ when using positive numerics
+stdin:
+ x=abcdefghi
+ typeset -i y=123456789
+ typeset -i 16 z=123456789 # 16#75bcd15
+ echo a t${x:2:2} ${y:2:3} ${z:2:3} a
+ echo b ${x::3} ${y::3} ${z::3} b
+ echo c ${x:2:} ${y:2:} ${z:2:} c
+ echo d ${x:2} ${y:2} ${z:2} d
+ echo e ${x:2:6} ${y:2:6} ${z:2:7} e
+ echo f ${x:2:7} ${y:2:7} ${z:2:8} f
+ echo g ${x:2:8} ${y:2:8} ${z:2:9} g
+expected-stdout:
+ a tcd 345 #75 a
+ b abc 123 16# b
+ c c
+ d cdefghi 3456789 #75bcd15 d
+ e cdefgh 345678 #75bcd1 e
+ f cdefghi 3456789 #75bcd15 f
+ g cdefghi 3456789 #75bcd15 g
+---
+name: varexpand-substr-2
+description:
+ Check if bash-style substring expansion works
+ when using negative numerics or expressions
+stdin:
+ x=abcdefghi
+ typeset -i y=123456789
+ typeset -i 16 z=123456789 # 16#75bcd15
+ n=2
+ echo a ${x:$n:3} ${y:$n:3} ${z:$n:3} a
+ echo b ${x:(n):3} ${y:(n):3} ${z:(n):3} b
+ echo c ${x:(-2):1} ${y:(-2):1} ${z:(-2):1} c
+ echo d t${x: n:2} ${y: n:3} ${z: n:3} d
+expected-stdout:
+ a cde 345 #75 a
+ b cde 345 #75 b
+ c h 8 1 c
+ d tcd 345 #75 d
+---
+name: varexpand-substr-3
+description:
+ Check that some things that work in bash fail.
+ This is by design. And that some things fail in both.
+stdin:
+ export x=abcdefghi n=2
+ "$__progname" -c 'echo v${x:(n)}x'
+ "$__progname" -c 'echo w${x: n}x'
+ "$__progname" -c 'echo x${x:n}x'
+ "$__progname" -c 'echo y${x:}x'
+ "$__progname" -c 'echo z${x}x'
+ "$__progname" -c 'x=abcdef;y=123;echo ${x:${y:2:1}:2}' >/dev/null 2>&1; echo $?
+expected-stdout:
+ vcdefghix
+ wcdefghix
+ zabcdefghix
+ 1
+expected-stderr-pattern:
+ /x:n.*bad substitution.*\n.*bad substitution/
+---
+name: varexpand-substr-4
+description:
+ Check corner cases for substring expansion
+stdin:
+ x=abcdefghi
+ integer y=2
+ echo a ${x:(y == 1 ? 2 : 3):4} a
+expected-stdout:
+ a defg a
+---
+name: varexpand-substr-5A
+description:
+ Check that substring expansions work on characters
+stdin:
+ set +U
+ x=mäh
+ echo a ${x::1} ${x: -1} a
+ echo b ${x::3} ${x: -3} b
+ echo c ${x:1:2} ${x: -3:2} c
+ echo d ${#x} d
+expected-stdout:
+ a m h a
+ b mä äh b
+ c ä ä c
+ d 4 d
+---
+name: varexpand-substr-5W
+description:
+ Check that substring expansions work on characters
+stdin:
+ set -U
+ x=mäh
+ echo a ${x::1} ${x: -1} a
+ echo b ${x::2} ${x: -2} b
+ echo c ${x:1:1} ${x: -2:1} c
+ echo d ${#x} d
+expected-stdout:
+ a m h a
+ b mä äh b
+ c ä ä c
+ d 3 d
+---
+name: varexpand-substr-6
+description:
+ Check that string substitution works correctly
+stdin:
+ foo=1
+ bar=2
+ baz=qwertyuiop
+ echo a ${baz: foo: bar}
+ echo b ${baz: foo: $bar}
+ echo c ${baz: $foo: bar}
+ echo d ${baz: $foo: $bar}
+expected-stdout:
+ a we
+ b we
+ c we
+ d we
+---
+name: varexpand-special-hash
+description:
+ Check special ${var at x} expansion for x=hash
+stdin:
+ typeset -i8 foo=10
+ bar=baz
+ unset baz
+ print ${foo@#} ${bar@#} ${baz@#} .
+expected-stdout:
+ 9B15FBFB CFBDD32B 00000000 .
+---
+name: varexpand-special-quote
+description:
+ Check special ${var at Q} expansion for quoted strings
+stdin:
+ set +U
+ i=x
+ j=a\ b
+ k=$'c
+ d\xA0''e€f'
+ print -r -- "<i=$i j=$j k=$k>"
+ s="u=${i at Q} v=${j at Q} w=${k at Q}"
+ print -r -- "s=\"$s\""
+ eval "$s"
+ typeset -p u v w
+expected-stdout:
+ <i=x j=a b k=c
+ d\xA0e€f>
+ s="u=x v='a b' w=$'c\nd\240e\u20ACf'"
+ typeset u=x
+ typeset v='a b'
+ typeset w=$'c\nd\240e\u20ACf'
+---
+name: varexpand-null-1
+description:
+ Ensure empty strings expand emptily
+stdin:
+ print x ${a} ${b} y
+ print z ${a#?} ${b%?} w
+ print v ${a=} ${b/c/d} u
+expected-stdout:
+ x y
+ z w
+ v u
+---
+name: varexpand-null-2
+description:
+ Ensure empty strings, when quoted, are expanded as empty strings
+stdin:
+ print '#!'"$__progname"'\nfor x in "$@"; do print -nr -- "<$x> "; done' >pfs
+ chmod +x pfs
+ ./pfs 1 "${a}" 2 "${a#?}" + "${b%?}" 3 "${a=}" + "${b/c/d}"
+ echo .
+expected-stdout:
+ <1> <> <2> <> <+> <> <3> <> <+> <> .
+---
+name: print-funny-chars
+description:
+ Check print builtin's capability to output designated characters
+stdin:
+ print '<\0144\0344\xDB\u00DB\u20AC\uDB\x40>'
+expected-stdout:
+ <d\xE4\xDBÛ€Û@>
+---
+name: print-bksl-c
+description:
+ Check print builtin's \c escape
+stdin:
+ print '\ca'; print b
+expected-stdout:
+ ab
+---
+name: print-cr
+description:
+ Check that CR+LF is not collapsed into LF as some MSYS shells wrongly do
+stdin:
+ echo '#!'"$__progname" >foo
+ cat >>foo <<-'EOF'
+ print -n -- '220-blau.mirbsd.org ESMTP ready at Thu, 25 Jul 2013 15:57:57 GMT\r\n220->> Bitte keine Werbung einwerfen! <<\r\r\n220 Who do you wanna pretend to be today'
+ print \?
+ EOF
+ chmod +x foo
+ echo "[$(./foo)]"
+ ./foo | while IFS= read -r line; do
+ print -r -- "{$line}"
+ done
+expected-stdout:
+ [220-blau.mirbsd.org ESMTP ready at Thu, 25 Jul 2013 15:57:57 GMT
+ 220->> Bitte keine Werbung einwerfen! <<
+
+ 220 Who do you wanna pretend to be today?
+]
+ {220-blau.mirbsd.org ESMTP ready at Thu, 25 Jul 2013 15:57:57 GMT
+}
+ {220->> Bitte keine Werbung einwerfen! <<
+
+}
+ {220 Who do you wanna pretend to be today?
+}
+---
+name: print-nul-chars
+description:
+ Check handling of NUL characters for print and COMSUB
+stdin:
+ x=$(print '<\0>')
+ print $(($(print '<\0>' | wc -c))) $(($(print "$x" | wc -c))) \
+ ${#x} "$x" '<\0>'
+expected-stdout-pattern:
+ /^4 3 2 <> <\0>$/
+---
+name: print-escapes
+description:
+ Check backslash expansion by the print builtin
+stdin:
+ print '\ \!\"\#\$\%\&'\\\''\(\)\*\+\,\-\.\/\0\1\2\3\4\5\6\7\8' \
+ '\9\:\;\<\=\>\?\@\A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T' \
+ '\U\V\W\X\Y\Z\[\\\]\^\_\`\a\b \d\e\f\g\h\i\j\k\l\m\n\o\p' \
+ '\q\r\s\t\u\v\w\x\y\z\{\|\}\~' '\u20acd' '\U20acd' '\x123' \
+ '\0x' '\0123' '\01234' | {
+ # integer-base-one-3As
+ typeset -Uui16 -Z11 pos=0
+ typeset -Uui16 -Z5 hv=2147483647
+ typeset -i1 wc=0x0A
+ dasc=
+ nl=${wc#1#}
+ while IFS= read -r line; do
+ line=$line$nl
+ while [[ -n $line ]]; do
+ hv=1#${line::1}
+ if (( (pos & 15) == 0 )); then
+ (( pos )) && print "$dasc|"
+ print -n "${pos#16#} "
+ dasc=' |'
+ fi
+ print -n "${hv#16#} "
+ if (( (hv < 32) || (hv > 126) )); then
+ dasc=$dasc.
+ else
+ dasc=$dasc${line::1}
+ fi
+ (( (pos++ & 15) == 7 )) && print -n -- '- '
+ line=${line:1}
+ done
+ done
+ while (( pos & 15 )); do
+ print -n ' '
+ (( (pos++ & 15) == 7 )) && print -n -- '- '
+ done
+ (( hv == 2147483647 )) || print "$dasc|"
+ }
+expected-stdout:
+ 00000000 5C 20 5C 21 5C 22 5C 23 - 5C 24 5C 25 5C 26 5C 27 |\ \!\"\#\$\%\&\'|
+ 00000010 5C 28 5C 29 5C 2A 5C 2B - 5C 2C 5C 2D 5C 2E 5C 2F |\(\)\*\+\,\-\.\/|
+ 00000020 5C 31 5C 32 5C 33 5C 34 - 5C 35 5C 36 5C 37 5C 38 |\1\2\3\4\5\6\7\8|
+ 00000030 20 5C 39 5C 3A 5C 3B 5C - 3C 5C 3D 5C 3E 5C 3F 5C | \9\:\;\<\=\>\?\|
+ 00000040 40 5C 41 5C 42 5C 43 5C - 44 1B 5C 46 5C 47 5C 48 |@\A\B\C\D.\F\G\H|
+ 00000050 5C 49 5C 4A 5C 4B 5C 4C - 5C 4D 5C 4E 5C 4F 5C 50 |\I\J\K\L\M\N\O\P|
+ 00000060 5C 51 5C 52 5C 53 5C 54 - 20 5C 56 5C 57 5C 58 5C |\Q\R\S\T \V\W\X\|
+ 00000070 59 5C 5A 5C 5B 5C 5C 5D - 5C 5E 5C 5F 5C 60 07 08 |Y\Z\[\]\^\_\`..|
+ 00000080 20 20 5C 64 1B 0C 5C 67 - 5C 68 5C 69 5C 6A 5C 6B | \d..\g\h\i\j\k|
+ 00000090 5C 6C 5C 6D 0A 5C 6F 5C - 70 20 5C 71 0D 5C 73 09 |\l\m.\o\p \q.\s.|
+ 000000A0 0B 5C 77 5C 79 5C 7A 5C - 7B 5C 7C 5C 7D 5C 7E 20 |.\w\y\z\{\|\}\~ |
+ 000000B0 E2 82 AC 64 20 EF BF BD - 20 12 33 20 78 20 53 20 |...d ... .3 x S |
+ 000000C0 53 34 0A - |S4.|
+---
+name: dollar-doublequoted-strings
+description:
+ Check that a $ preceding "…" is ignored
+stdin:
+ echo $"Localise me!"
+ cat <<<$"Me too!"
+ V=X
+ aol=aol
+ cat <<-$"aol"
+ I do not take a $V for a V!
+ aol
+expected-stdout:
+ Localise me!
+ Me too!
+ I do not take a $V for a V!
+---
+name: dollar-quoted-strings
+description:
+ Check backslash expansion by $'…' strings
+stdin:
+ print '#!'"$__progname"'\nfor x in "$@"; do print -r -- "$x"; done' >pfn
+ chmod +x pfn
+ ./pfn $'\ \!\"\#\$\%\&\'\(\)\*\+\,\-\.\/ \1\2\3\4\5\6' \
+ $'a\0b' $'a\01b' $'\7\8\9\:\;\<\=\>\?\@\A\B\C\D\E\F\G\H\I' \
+ $'\J\K\L\M\N\O\P\Q\R\S\T\U1\V\W\X\Y\Z\[\\\]\^\_\`\a\b\d\e' \
+ $'\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u1\v\w\x1\y\z\{\|\}\~ $x' \
+ $'\u20acd' $'\U20acd' $'\x123' $'fn\x0rd' $'\0234' $'\234' \
+ $'\2345' $'\ca' $'\c!' $'\c?' $'\c€' $'a\
+ b' | {
+ # integer-base-one-3As
+ typeset -Uui16 -Z11 pos=0
+ typeset -Uui16 -Z5 hv=2147483647
+ typeset -i1 wc=0x0A
+ dasc=
+ nl=${wc#1#}
+ while IFS= read -r line; do
+ line=$line$nl
+ while [[ -n $line ]]; do
+ hv=1#${line::1}
+ if (( (pos & 15) == 0 )); then
+ (( pos )) && print "$dasc|"
+ print -n "${pos#16#} "
+ dasc=' |'
+ fi
+ print -n "${hv#16#} "
+ if (( (hv < 32) || (hv > 126) )); then
+ dasc=$dasc.
+ else
+ dasc=$dasc${line::1}
+ fi
+ (( (pos++ & 15) == 7 )) && print -n -- '- '
+ line=${line:1}
+ done
+ done
+ while (( pos & 15 )); do
+ print -n ' '
+ (( (pos++ & 15) == 7 )) && print -n -- '- '
+ done
+ (( hv == 2147483647 )) || print "$dasc|"
+ }
+expected-stdout:
+ 00000000 20 21 22 23 24 25 26 27 - 28 29 2A 2B 2C 2D 2E 2F | !"#$%&'()*+,-./|
+ 00000010 20 01 02 03 04 05 06 0A - 61 0A 61 01 62 0A 07 38 | .......a.a.b..8|
+ 00000020 39 3A 3B 3C 3D 3E 3F 40 - 41 42 43 44 1B 46 47 48 |9:;<=>?@ABCD.FGH|
+ 00000030 49 0A 4A 4B 4C 4D 4E 4F - 50 51 52 53 54 01 56 57 |I.JKLMNOPQRST.VW|
+ 00000040 58 59 5A 5B 5C 5D 5E 5F - 60 07 08 64 1B 0A 0C 67 |XYZ[\]^_`..d...g|
+ 00000050 68 69 6A 6B 6C 6D 0A 6F - 70 71 0D 73 09 01 0B 77 |hijklm.opq.s...w|
+ 00000060 01 79 7A 7B 7C 7D 7E 20 - 24 78 0A E2 82 AC 64 0A |.yz{|}~ $x....d.|
+ 00000070 EF BF BD 0A C4 A3 0A 66 - 6E 0A 13 34 0A 9C 0A 9C |.......fn..4....|
+ 00000080 35 0A 01 0A 01 0A 7F 0A - 02 82 AC 0A 61 0A 62 0A |5...........a.b.|
+---
+name: dollar-quotes-in-heredocs-strings
+description:
+ They are, however, not parsed in here documents, here strings
+ (outside of string delimiters) or regular strings, but in
+ parameter substitutions.
+stdin:
+ cat <<EOF
+ dollar = strchr(s, '$'); /* ' */
+ foo " bar \" baz
+ EOF
+ cat <<$'a\tb'
+ a\tb
+ a b
+ cat <<<"dollar = strchr(s, '$'); /* ' */"
+ cat <<<'dollar = strchr(s, '\''$'\''); /* '\'' */'
+ x="dollar = strchr(s, '$'); /* ' */"
+ cat <<<"$x"
+ cat <<<$'a\E[0m\tb'
+ unset nl; print -r -- "x${nl:=$'\n'}y"
+ echo "1 foo\"bar"
+ # cf & HEREDOC
+ cat <<EOF
+ 2 foo\"bar
+ EOF
+ # probably never reached for here strings?
+ cat <<<"3 foo\"bar"
+ cat <<<"4 foo\\\"bar"
+ cat <<<'5 foo\"bar'
+ # old scripts use this (e.g. ncurses)
+ echo "^$"
+ # make sure this works, outside of quotes
+ cat <<<'7'$'\t''.'
+expected-stdout:
+ dollar = strchr(s, '$'); /* ' */
+ foo " bar \" baz
+ a\tb
+ dollar = strchr(s, '$'); /* ' */
+ dollar = strchr(s, '$'); /* ' */
+ dollar = strchr(s, '$'); /* ' */
+ a[0m b
+ x
+ y
+ 1 foo"bar
+ 2 foo\"bar
+ 3 foo"bar
+ 4 foo\"bar
+ 5 foo\"bar
+ ^$
+ 7 .
+---
+name: dot-needs-argument
+description:
+ check Debian #415167 solution: '.' without arguments should fail
+stdin:
+ "$__progname" -c .
+ "$__progname" -c source
+expected-exit: e != 0
+expected-stderr-pattern:
+ /\.: missing argument.*\n.*\.: missing argument/
+---
+name: alias-function-no-conflict
+description:
+ make aliases not conflict with functions
+ note: for ksh-like functions, the order of preference is
+ different; bash outputs baz instead of bar in line 2 below
+stdin:
+ alias foo='echo bar'
+ foo() {
+ echo baz
+ }
+ alias korn='echo bar'
+ function korn {
+ echo baz
+ }
+ foo
+ korn
+ unset -f foo
+ foo 2>/dev/null || echo rab
+expected-stdout:
+ baz
+ bar
+ rab
+---
+name: bash-function-parens
+description:
+ ensure the keyword function is ignored when preceding
+ POSIX style function declarations (bashism)
+stdin:
+ mk() {
+ echo '#!'"$__progname"
+ echo "$1 {"
+ echo ' echo "bar='\''$0'\'\"
+ echo '}'
+ echo ${2:-foo}
+ }
+ mk 'function foo' >f-korn
+ mk 'foo ()' >f-dash
+ mk 'function foo ()' >f-bash
+ mk 'function stop ()' stop >f-stop
+ print '#!'"$__progname"'\nprint -r -- "${0%/f-argh}"' >f-argh
+ chmod +x f-*
+ u=$(./f-argh)
+ x="korn: $(./f-korn)"; echo "${x/@("$u")/.}"
+ x="dash: $(./f-dash)"; echo "${x/@("$u")/.}"
+ x="bash: $(./f-bash)"; echo "${x/@("$u")/.}"
+ x="stop: $(./f-stop)"; echo "${x/@("$u")/.}"
+expected-stdout:
+ korn: bar='foo'
+ dash: bar='./f-dash'
+ bash: bar='./f-bash'
+ stop: bar='./f-stop'
+---
+name: integer-base-one-1
+description:
+ check if the use of fake integer base 1 works
+stdin:
+ set -U
+ typeset -Uui16 i0=1#\xEF i1=1#€
+ typeset -i1 o0a=64
+ typeset -i1 o1a=0x263A
+ typeset -Uui1 o0b=0x7E
+ typeset -Uui1 o1b=0xFDD0
+ integer px=0xCAFE 'p0=1# ' p1=1#… pl=1#f
+ echo "in <$i0> <$i1>"
+ echo "out <${o0a#1#}|${o0b#1#}> <${o1a#1#}|${o1b#1#}>"
+ typeset -Uui1 i0 i1
+ echo "pass <$px> <$p0> <$p1> <$pl> <${i0#1#}|${i1#1#}>"
+ typeset -Uui16 tv1=1#~ tv2=1# tv3=1#\x80 tv4=1#\x81 tv5=1#\xC0 tv6=1#\xC1 tv7=1# tv8=1#€
+ echo "specX <${tv1#16#}> <${tv2#16#}> <${tv3#16#}> <${tv4#16#}> <${tv5#16#}> <${tv6#16#}> <${tv7#16#}> <${tv8#16#}>"
+ typeset -i1 tv1 tv2 tv3 tv4 tv5 tv6 tv7 tv8
+ echo "specW <${tv1#1#}> <${tv2#1#}> <${tv3#1#}> <${tv4#1#}> <${tv5#1#}> <${tv6#1#}> <${tv7#1#}> <${tv8#1#}>"
+ typeset -i1 xs1=0xEF7F xs2=0xEF80 xs3=0xFDD0
+ echo "specU <${xs1#1#}> <${xs2#1#}> <${xs3#1#}>"
+expected-stdout:
+ in <16#EFEF> <16#20AC>
+ out <@|~> <☺|\x{FDD0}>
+ pass <16#cafe> <1# > <1#…> <1#f> <\xEF|€>
+ specX <7E> <7F> <EF80> <EF81> <EFC0> <EFC1> <A0> <80>
+ specW <~> <> <\x80> <\x81> <\xC0> <\xC1> < > <€>
+ specU <> <\x80> <\x{FDD0}>
+---
+name: integer-base-one-2a
+description:
+ check if the use of fake integer base 1 stops at correct characters
+stdin:
+ set -U
+ integer x=1#foo
+ echo /$x/
+expected-stderr-pattern:
+ /1#foo: unexpected 'oo'/
+expected-exit: e != 0
+---
+name: integer-base-one-2b
+description:
+ check if the use of fake integer base 1 stops at correct characters
+stdin:
+ set -U
+ integer x=1#\xC0\x80
+ echo /$x/
+expected-stderr-pattern:
+ /1#\xC0\x80: unexpected '\x80'/
+expected-exit: e != 0
+---
+name: integer-base-one-2c1
+description:
+ check if the use of fake integer base 1 stops at correct characters
+stdin:
+ set -U
+ integer x=1#…
+ echo /$x/
+expected-stdout:
+ /1#…/
+---
+name: integer-base-one-2c2
+description:
+ check if the use of fake integer base 1 stops at correct characters
+stdin:
+ set +U
+ integer x=1#…
+ echo /$x/
+expected-stderr-pattern:
+ /1#…: unexpected '\x80'/
+expected-exit: e != 0
+---
+name: integer-base-one-2d1
+description:
+ check if the use of fake integer base 1 handles octets okay
+stdin:
+ set -U
+ typeset -i16 x=1#\xFF
+ echo /$x/ # invalid utf-8
+expected-stdout:
+ /16#efff/
+---
+name: integer-base-one-2d2
+description:
+ check if the use of fake integer base 1 handles octets
+stdin:
+ set -U
+ typeset -i16 x=1#\xC2
+ echo /$x/ # invalid 2-byte
+expected-stdout:
+ /16#efc2/
+---
+name: integer-base-one-2d3
+description:
+ check if the use of fake integer base 1 handles octets
+stdin:
+ set -U
+ typeset -i16 x=1#\xEF
+ echo /$x/ # invalid 2-byte
+expected-stdout:
+ /16#efef/
+---
+name: integer-base-one-2d4
+description:
+ check if the use of fake integer base 1 stops at invalid input
+stdin:
+ set -U
+ typeset -i16 x=1#\xEF\xBF\xC0
+ echo /$x/ # invalid 3-byte
+expected-stderr-pattern:
+ /1#\xEF\xBF\xC0: unexpected '\xBF'/
+expected-exit: e != 0
+---
+name: integer-base-one-2d5
+description:
+ check if the use of fake integer base 1 stops at invalid input
+stdin:
+ set -U
+ typeset -i16 x=1#\xC0\x80
+ echo /$x/ # non-minimalistic
+expected-stderr-pattern:
+ /1#\xC0\x80: unexpected '\x80'/
+expected-exit: e != 0
+---
+name: integer-base-one-2d6
+description:
+ check if the use of fake integer base 1 stops at invalid input
+stdin:
+ set -U
+ typeset -i16 x=1#\xE0\x80\x80
+ echo /$x/ # non-minimalistic
+expected-stderr-pattern:
+ /1#\xE0\x80\x80: unexpected '\x80'/
+expected-exit: e != 0
+---
+name: integer-base-one-3As
+description:
+ some sample code for hexdumping
+ not NUL safe; input lines must be NL terminated
+stdin:
+ {
+ print 'Hello, World!\\\nこんにちは！'
+ typeset -Uui16 i=0x100
+ # change that to 0xFF once we can handle embedded
+ # NUL characters in strings / here documents
+ while (( i++ < 0x1FF )); do
+ print -n "\x${i#16#1}"
+ done
+ print '\0z'
+ } | {
+ # integer-base-one-3As
+ typeset -Uui16 -Z11 pos=0
+ typeset -Uui16 -Z5 hv=2147483647
+ typeset -i1 wc=0x0A
+ dasc=
+ nl=${wc#1#}
+ while IFS= read -r line; do
+ line=$line$nl
+ while [[ -n $line ]]; do
+ hv=1#${line::1}
+ if (( (pos & 15) == 0 )); then
+ (( pos )) && print "$dasc|"
+ print -n "${pos#16#} "
+ dasc=' |'
+ fi
+ print -n "${hv#16#} "
+ if (( (hv < 32) || (hv > 126) )); then
+ dasc=$dasc.
+ else
+ dasc=$dasc${line::1}
+ fi
+ (( (pos++ & 15) == 7 )) && print -n -- '- '
+ line=${line:1}
+ done
+ done
+ while (( pos & 15 )); do
+ print -n ' '
+ (( (pos++ & 15) == 7 )) && print -n -- '- '
+ done
+ (( hv == 2147483647 )) || print "$dasc|"
+ }
+expected-stdout:
+ 00000000 48 65 6C 6C 6F 2C 20 57 - 6F 72 6C 64 21 5C 0A E3 |Hello, World!\..|
+ 00000010 81 93 E3 82 93 E3 81 AB - E3 81 A1 E3 81 AF EF BC |................|
+ 00000020 81 0A 01 02 03 04 05 06 - 07 08 09 0A 0B 0C 0D 0E |................|
+ 00000030 0F 10 11 12 13 14 15 16 - 17 18 19 1A 1B 1C 1D 1E |................|
+ 00000040 1F 20 21 22 23 24 25 26 - 27 28 29 2A 2B 2C 2D 2E |. !"#$%&'()*+,-.|
+ 00000050 2F 30 31 32 33 34 35 36 - 37 38 39 3A 3B 3C 3D 3E |/0123456789:;<=>|
+ 00000060 3F 40 41 42 43 44 45 46 - 47 48 49 4A 4B 4C 4D 4E |?@ABCDEFGHIJKLMN|
+ 00000070 4F 50 51 52 53 54 55 56 - 57 58 59 5A 5B 5C 5D 5E |OPQRSTUVWXYZ[\]^|
+ 00000080 5F 60 61 62 63 64 65 66 - 67 68 69 6A 6B 6C 6D 6E |_`abcdefghijklmn|
+ 00000090 6F 70 71 72 73 74 75 76 - 77 78 79 7A 7B 7C 7D 7E |opqrstuvwxyz{|}~|
+ 000000A0 7F 80 81 82 83 84 85 86 - 87 88 89 8A 8B 8C 8D 8E |................|
+ 000000B0 8F 90 91 92 93 94 95 96 - 97 98 99 9A 9B 9C 9D 9E |................|
+ 000000C0 9F A0 A1 A2 A3 A4 A5 A6 - A7 A8 A9 AA AB AC AD AE |................|
+ 000000D0 AF B0 B1 B2 B3 B4 B5 B6 - B7 B8 B9 BA BB BC BD BE |................|
+ 000000E0 BF C0 C1 C2 C3 C4 C5 C6 - C7 C8 C9 CA CB CC CD CE |................|
+ 000000F0 CF D0 D1 D2 D3 D4 D5 D6 - D7 D8 D9 DA DB DC DD DE |................|
+ 00000100 DF E0 E1 E2 E3 E4 E5 E6 - E7 E8 E9 EA EB EC ED EE |................|
+ 00000110 EF F0 F1 F2 F3 F4 F5 F6 - F7 F8 F9 FA FB FC FD FE |................|
+ 00000120 FF 7A 0A - |.z.|
+---
+name: integer-base-one-3Ws
+description:
+ some sample code for hexdumping Unicode
+ not NUL safe; input lines must be NL terminated
+stdin:
+ set -U
+ {
+ print 'Hello, World!\\\nこんにちは！'
+ typeset -Uui16 i=0x100
+ # change that to 0xFF once we can handle embedded
+ # NUL characters in strings / here documents
+ while (( i++ < 0x1FF )); do
+ print -n "\u${i#16#1}"
+ done
+ print
+ print \\xff # invalid utf-8
+ print \\xc2 # invalid 2-byte
+ print \\xef\\xbf\\xc0 # invalid 3-byte
+ print \\xc0\\x80 # non-minimalistic
+ print \\xe0\\x80\\x80 # non-minimalistic
+ print '�\x{FFFE}\x{FFFF}' # end of range
+ print '\0z' # embedded NUL
+ } | {
+ # integer-base-one-3Ws
+ typeset -Uui16 -Z11 pos=0
+ typeset -Uui16 -Z7 hv
+ typeset -i1 wc=0x0A
+ typeset -i lpos
+ dasc=
+ nl=${wc#1#}
+ while IFS= read -r line; do
+ line=$line$nl
+ lpos=0
+ while (( lpos < ${#line} )); do
+ wc=1#${line:(lpos++):1}
+ if (( (wc < 32) || \
+ ((wc > 126) && (wc < 160)) )); then
+ dch=.
+ elif (( (wc & 0xFF80) == 0xEF80 )); then
+ dch=�
+ else
+ dch=${wc#1#}
+ fi
+ if (( (pos & 7) == 7 )); then
+ dasc=$dasc$dch
+ dch=
+ elif (( (pos & 7) == 0 )); then
+ (( pos )) && print "$dasc|"
+ print -n "${pos#16#} "
+ dasc=' |'
+ fi
+ let hv=wc
+ print -n "${hv#16#} "
+ (( (pos++ & 7) == 3 )) && \
+ print -n -- '- '
+ dasc=$dasc$dch
+ done
+ done
+ while (( pos & 7 )); do
+ print -n ' '
+ (( (pos++ & 7) == 3 )) && print -n -- '- '
+ done
+ (( hv == 2147483647 )) || print "$dasc|"
+ }
+expected-stdout:
+ 00000000 0048 0065 006C 006C - 006F 002C 0020 0057 |Hello, W|
+ 00000008 006F 0072 006C 0064 - 0021 005C 000A 3053 |orld!\.こ|
+ 00000010 3093 306B 3061 306F - FF01 000A 0001 0002 |んにちは！...|
+ 00000018 0003 0004 0005 0006 - 0007 0008 0009 000A |........|
+ 00000020 000B 000C 000D 000E - 000F 0010 0011 0012 |........|
+ 00000028 0013 0014 0015 0016 - 0017 0018 0019 001A |........|
+ 00000030 001B 001C 001D 001E - 001F 0020 0021 0022 |..... !"|
+ 00000038 0023 0024 0025 0026 - 0027 0028 0029 002A |#$%&'()*|
+ 00000040 002B 002C 002D 002E - 002F 0030 0031 0032 |+,-./012|
+ 00000048 0033 0034 0035 0036 - 0037 0038 0039 003A |3456789:|
+ 00000050 003B 003C 003D 003E - 003F 0040 0041 0042 |;<=>?@AB|
+ 00000058 0043 0044 0045 0046 - 0047 0048 0049 004A |CDEFGHIJ|
+ 00000060 004B 004C 004D 004E - 004F 0050 0051 0052 |KLMNOPQR|
+ 00000068 0053 0054 0055 0056 - 0057 0058 0059 005A |STUVWXYZ|
+ 00000070 005B 005C 005D 005E - 005F 0060 0061 0062 |[\]^_`ab|
+ 00000078 0063 0064 0065 0066 - 0067 0068 0069 006A |cdefghij|
+ 00000080 006B 006C 006D 006E - 006F 0070 0071 0072 |klmnopqr|
+ 00000088 0073 0074 0075 0076 - 0077 0078 0079 007A |stuvwxyz|
+ 00000090 007B 007C 007D 007E - 007F 0080 0081 0082 |{|}~....|
+ 00000098 0083 0084 0085 0086 - 0087 0088 0089 008A |........|
+ 000000A0 008B 008C 008D 008E - 008F 0090 0091 0092 |........|
+ 000000A8 0093 0094 0095 0096 - 0097 0098 0099 009A |........|
+ 000000B0 009B 009C 009D 009E - 009F 00A0 00A1 00A2 |..... ¡¢|
+ 000000B8 00A3 00A4 00A5 00A6 - 00A7 00A8 00A9 00AA |£¤¥¦§¨©ª|
+ 000000C0 00AB 00AC 00AD 00AE - 00AF 00B0 00B1 00B2 |«¬®¯°±²|
+ 000000C8 00B3 00B4 00B5 00B6 - 00B7 00B8 00B9 00BA |³´µ¶·¸¹º|
+ 000000D0 00BB 00BC 00BD 00BE - 00BF 00C0 00C1 00C2 |»¼½¾¿ÀÁÂ|
+ 000000D8 00C3 00C4 00C5 00C6 - 00C7 00C8 00C9 00CA |ÃÄÅÆÇÈÉÊ|
+ 000000E0 00CB 00CC 00CD 00CE - 00CF 00D0 00D1 00D2 |ËÌÍÎÏÐÑÒ|
+ 000000E8 00D3 00D4 00D5 00D6 - 00D7 00D8 00D9 00DA |ÓÔÕÖ×ØÙÚ|
+ 000000F0 00DB 00DC 00DD 00DE - 00DF 00E0 00E1 00E2 |ÛÜÝÞßàáâ|
+ 000000F8 00E3 00E4 00E5 00E6 - 00E7 00E8 00E9 00EA |ãäåæçèéê|
+ 00000100 00EB 00EC 00ED 00EE - 00EF 00F0 00F1 00F2 |ëìíîïðñò|
+ 00000108 00F3 00F4 00F5 00F6 - 00F7 00F8 00F9 00FA |óôõö÷øùú|
+ 00000110 00FB 00FC 00FD 00FE - 00FF 000A EFFF 000A |ûüýþÿ.�.|
+ 00000118 EFC2 000A EFEF EFBF - EFC0 000A EFC0 EF80 |�.���.��|
+ 00000120 000A EFE0 EF80 EF80 - 000A FFFD EFEF EFBF |.���.���|
+ 00000128 EFBE EFEF EFBF EFBF - 000A 007A 000A |����.z.|
+---
+name: integer-base-one-3Ar
+description:
+ some sample code for hexdumping; NUL and binary safe
+stdin:
+ {
+ print 'Hello, World!\\\nこんにちは！'
+ typeset -Uui16 i=0x100
+ # change that to 0xFF once we can handle embedded
+ # NUL characters in strings / here documents
+ while (( i++ < 0x1FF )); do
+ print -n "\x${i#16#1}"
+ done
+ print '\0z'
+ } | {
+ # integer-base-one-3Ar
+ typeset -Uui16 -Z11 pos=0
+ typeset -Uui16 -Z5 hv=2147483647
+ dasc=
+ if read -arN -1 line; then
+ typeset -i1 line
+ i=0
+ while (( i < ${#line[*]} )); do
+ hv=${line[i++]}
+ if (( (pos & 15) == 0 )); then
+ (( pos )) && print "$dasc|"
+ print -n "${pos#16#} "
+ dasc=' |'
+ fi
+ print -n "${hv#16#} "
+ if (( (hv < 32) || (hv > 126) )); then
+ dasc=$dasc.
+ else
+ dasc=$dasc${line[i-1]#1#}
+ fi
+ (( (pos++ & 15) == 7 )) && print -n -- '- '
+ done
+ fi
+ while (( pos & 15 )); do
+ print -n ' '
+ (( (pos++ & 15) == 7 )) && print -n -- '- '
+ done
+ (( hv == 2147483647 )) || print "$dasc|"
+ }
+expected-stdout:
+ 00000000 48 65 6C 6C 6F 2C 20 57 - 6F 72 6C 64 21 5C 0A E3 |Hello, World!\..|
+ 00000010 81 93 E3 82 93 E3 81 AB - E3 81 A1 E3 81 AF EF BC |................|
+ 00000020 81 0A 01 02 03 04 05 06 - 07 08 09 0A 0B 0C 0D 0E |................|
+ 00000030 0F 10 11 12 13 14 15 16 - 17 18 19 1A 1B 1C 1D 1E |................|
+ 00000040 1F 20 21 22 23 24 25 26 - 27 28 29 2A 2B 2C 2D 2E |. !"#$%&'()*+,-.|
+ 00000050 2F 30 31 32 33 34 35 36 - 37 38 39 3A 3B 3C 3D 3E |/0123456789:;<=>|
+ 00000060 3F 40 41 42 43 44 45 46 - 47 48 49 4A 4B 4C 4D 4E |?@ABCDEFGHIJKLMN|
+ 00000070 4F 50 51 52 53 54 55 56 - 57 58 59 5A 5B 5C 5D 5E |OPQRSTUVWXYZ[\]^|
+ 00000080 5F 60 61 62 63 64 65 66 - 67 68 69 6A 6B 6C 6D 6E |_`abcdefghijklmn|
+ 00000090 6F 70 71 72 73 74 75 76 - 77 78 79 7A 7B 7C 7D 7E |opqrstuvwxyz{|}~|
+ 000000A0 7F 80 81 82 83 84 85 86 - 87 88 89 8A 8B 8C 8D 8E |................|
+ 000000B0 8F 90 91 92 93 94 95 96 - 97 98 99 9A 9B 9C 9D 9E |................|
+ 000000C0 9F A0 A1 A2 A3 A4 A5 A6 - A7 A8 A9 AA AB AC AD AE |................|
+ 000000D0 AF B0 B1 B2 B3 B4 B5 B6 - B7 B8 B9 BA BB BC BD BE |................|
+ 000000E0 BF C0 C1 C2 C3 C4 C5 C6 - C7 C8 C9 CA CB CC CD CE |................|
+ 000000F0 CF D0 D1 D2 D3 D4 D5 D6 - D7 D8 D9 DA DB DC DD DE |................|
+ 00000100 DF E0 E1 E2 E3 E4 E5 E6 - E7 E8 E9 EA EB EC ED EE |................|
+ 00000110 EF F0 F1 F2 F3 F4 F5 F6 - F7 F8 F9 FA FB FC FD FE |................|
+ 00000120 FF 00 7A 0A - |..z.|
+---
+name: integer-base-one-3Wr
+description:
+ some sample code for hexdumping Unicode; NUL and binary safe
+stdin:
+ set -U
+ {
+ print 'Hello, World!\\\nこんにちは！'
+ typeset -Uui16 i=0x100
+ # change that to 0xFF once we can handle embedded
+ # NUL characters in strings / here documents
+ while (( i++ < 0x1FF )); do
+ print -n "\u${i#16#1}"
+ done
+ print
+ print \\xff # invalid utf-8
+ print \\xc2 # invalid 2-byte
+ print \\xef\\xbf\\xc0 # invalid 3-byte
+ print \\xc0\\x80 # non-minimalistic
+ print \\xe0\\x80\\x80 # non-minimalistic
+ print '�\x{FFFE}\x{FFFF}' # end of range
+ print '\0z' # embedded NUL
+ } | {
+ # integer-base-one-3Wr
+ typeset -Uui16 -Z11 pos=0
+ typeset -Uui16 -Z7 hv=2147483647
+ dasc=
+ if read -arN -1 line; then
+ typeset -i1 line
+ i=0
+ while (( i < ${#line[*]} )); do
+ hv=${line[i++]}
+ if (( (hv < 32) || \
+ ((hv > 126) && (hv < 160)) )); then
+ dch=.
+ elif (( (hv & 0xFF80) == 0xEF80 )); then
+ dch=�
+ else
+ dch=${line[i-1]#1#}
+ fi
+ if (( (pos & 7) == 7 )); then
+ dasc=$dasc$dch
+ dch=
+ elif (( (pos & 7) == 0 )); then
+ (( pos )) && print "$dasc|"
+ print -n "${pos#16#} "
+ dasc=' |'
+ fi
+ print -n "${hv#16#} "
+ (( (pos++ & 7) == 3 )) && \
+ print -n -- '- '
+ dasc=$dasc$dch
+ done
+ fi
+ while (( pos & 7 )); do
+ print -n ' '
+ (( (pos++ & 7) == 3 )) && print -n -- '- '
+ done
+ (( hv == 2147483647 )) || print "$dasc|"
+ }
+expected-stdout:
+ 00000000 0048 0065 006C 006C - 006F 002C 0020 0057 |Hello, W|
+ 00000008 006F 0072 006C 0064 - 0021 005C 000A 3053 |orld!\.こ|
+ 00000010 3093 306B 3061 306F - FF01 000A 0001 0002 |んにちは！...|
+ 00000018 0003 0004 0005 0006 - 0007 0008 0009 000A |........|
+ 00000020 000B 000C 000D 000E - 000F 0010 0011 0012 |........|
+ 00000028 0013 0014 0015 0016 - 0017 0018 0019 001A |........|
+ 00000030 001B 001C 001D 001E - 001F 0020 0021 0022 |..... !"|
+ 00000038 0023 0024 0025 0026 - 0027 0028 0029 002A |#$%&'()*|
+ 00000040 002B 002C 002D 002E - 002F 0030 0031 0032 |+,-./012|
+ 00000048 0033 0034 0035 0036 - 0037 0038 0039 003A |3456789:|
+ 00000050 003B 003C 003D 003E - 003F 0040 0041 0042 |;<=>?@AB|
+ 00000058 0043 0044 0045 0046 - 0047 0048 0049 004A |CDEFGHIJ|
+ 00000060 004B 004C 004D 004E - 004F 0050 0051 0052 |KLMNOPQR|
+ 00000068 0053 0054 0055 0056 - 0057 0058 0059 005A |STUVWXYZ|
+ 00000070 005B 005C 005D 005E - 005F 0060 0061 0062 |[\]^_`ab|
+ 00000078 0063 0064 0065 0066 - 0067 0068 0069 006A |cdefghij|
+ 00000080 006B 006C 006D 006E - 006F 0070 0071 0072 |klmnopqr|
+ 00000088 0073 0074 0075 0076 - 0077 0078 0079 007A |stuvwxyz|
+ 00000090 007B 007C 007D 007E - 007F 0080 0081 0082 |{|}~....|
+ 00000098 0083 0084 0085 0086 - 0087 0088 0089 008A |........|
+ 000000A0 008B 008C 008D 008E - 008F 0090 0091 0092 |........|
+ 000000A8 0093 0094 0095 0096 - 0097 0098 0099 009A |........|
+ 000000B0 009B 009C 009D 009E - 009F 00A0 00A1 00A2 |..... ¡¢|
+ 000000B8 00A3 00A4 00A5 00A6 - 00A7 00A8 00A9 00AA |£¤¥¦§¨©ª|
+ 000000C0 00AB 00AC 00AD 00AE - 00AF 00B0 00B1 00B2 |«¬®¯°±²|
+ 000000C8 00B3 00B4 00B5 00B6 - 00B7 00B8 00B9 00BA |³´µ¶·¸¹º|
+ 000000D0 00BB 00BC 00BD 00BE - 00BF 00C0 00C1 00C2 |»¼½¾¿ÀÁÂ|
+ 000000D8 00C3 00C4 00C5 00C6 - 00C7 00C8 00C9 00CA |ÃÄÅÆÇÈÉÊ|
+ 000000E0 00CB 00CC 00CD 00CE - 00CF 00D0 00D1 00D2 |ËÌÍÎÏÐÑÒ|
+ 000000E8 00D3 00D4 00D5 00D6 - 00D7 00D8 00D9 00DA |ÓÔÕÖ×ØÙÚ|
+ 000000F0 00DB 00DC 00DD 00DE - 00DF 00E0 00E1 00E2 |ÛÜÝÞßàáâ|
+ 000000F8 00E3 00E4 00E5 00E6 - 00E7 00E8 00E9 00EA |ãäåæçèéê|
+ 00000100 00EB 00EC 00ED 00EE - 00EF 00F0 00F1 00F2 |ëìíîïðñò|
+ 00000108 00F3 00F4 00F5 00F6 - 00F7 00F8 00F9 00FA |óôõö÷øùú|
+ 00000110 00FB 00FC 00FD 00FE - 00FF 000A EFFF 000A |ûüýþÿ.�.|
+ 00000118 EFC2 000A EFEF EFBF - EFC0 000A EFC0 EF80 |�.���.��|
+ 00000120 000A EFE0 EF80 EF80 - 000A FFFD EFEF EFBF |.���.���|
+ 00000128 EFBE EFEF EFBF EFBF - 000A 0000 007A 000A |����..z.|
+---
+name: integer-base-one-4
+description:
+ Check if ksh93-style base-one integers work
+category: !smksh
+stdin:
+ set -U
+ echo 1 $(('a'))
+ (echo 2f $(('aa'))) 2>&1 | sed "s/^[^']*'/2p '/"
+ echo 3 $(('…'))
+ x="'a'"
+ echo "4 <$x>"
+ echo 5 $(($x))
+ echo 6 $((x))
+expected-stdout:
+ 1 97
+ 2p 'aa': multi-character character constant
+ 3 8230
+ 4 <'a'>
+ 5 97
+ 6 97
+---
+name: integer-base-one-5A
+description:
+ Check to see that we’re NUL and Unicode safe
+stdin:
+ set +U
+ print 'a\0b\xfdz' >x
+ read -a y <x
+ set -U
+ typeset -Uui16 y
+ print ${y[*]} .
+expected-stdout:
+ 16#61 16#0 16#62 16#FD 16#7A .
+---
+name: integer-base-one-5W
+description:
+ Check to see that we’re NUL and Unicode safe
+stdin:
+ set -U
+ print 'a\0b€c' >x
+ read -a y <x
+ set +U
+ typeset -Uui16 y
+ print ${y[*]} .
+expected-stdout:
+ 16#61 16#0 16#62 16#20AC 16#63 .
+---
+name: ulimit-1
+description:
+ Check if we can use a specific syntax idiom for ulimit
+category: !os:syllable
+stdin:
+ if ! x=$(ulimit -d) || [[ $x = unknown ]]; then
+ #echo expected to fail on this OS
+ echo okay
+ else
+ ulimit -dS $x && echo okay
+ fi
+expected-stdout:
+ okay
+---
+name: redir-1
+description:
+ Check some of the most basic invariants of I/O redirection
+stdin:
+ i=0
+ function d {
+ print o$i.
+ print -u2 e$((i++)).
+ }
+ d >a 2>b
+ echo =1=
+ cat a
+ echo =2=
+ cat b
+ echo =3=
+ d 2>&1 >c
+ echo =4=
+ cat c
+ echo =5=
+expected-stdout:
+ =1=
+ o0.
+ =2=
+ e0.
+ =3=
+ e1.
+ =4=
+ o1.
+ =5=
+---
+name: bashiop-1
+description:
+ Check if GNU bash-like I/O redirection works
+ Part 1: this is also supported by GNU bash
+category: shell:legacy-no
+stdin:
+ exec 3>&1
+ function threeout {
+ echo ras
+ echo dwa >&2
+ echo tri >&3
+ }
+ threeout &>foo
+ echo ===
+ cat foo
+expected-stdout:
+ tri
+ ===
+ ras
+ dwa
+---
+name: bashiop-2a
+description:
+ Check if GNU bash-like I/O redirection works
+ Part 2: this is *not* supported by GNU bash
+category: shell:legacy-no
+stdin:
+ exec 3>&1
+ function threeout {
+ echo ras
+ echo dwa >&2
+ echo tri >&3
+ }
+ threeout 3&>foo
+ echo ===
+ cat foo
+expected-stdout:
+ ras
+ ===
+ dwa
+ tri
+---
+name: bashiop-2b
+description:
+ Check if GNU bash-like I/O redirection works
+ Part 2: this is *not* supported by GNU bash
+category: shell:legacy-no
+stdin:
+ exec 3>&1
+ function threeout {
+ echo ras
+ echo dwa >&2
+ echo tri >&3
+ }
+ threeout 3>foo &>&3
+ echo ===
+ cat foo
+expected-stdout:
+ ===
+ ras
+ dwa
+ tri
+---
+name: bashiop-2c
+description:
+ Check if GNU bash-like I/O redirection works
+ Part 2: this is supported by GNU bash 4 only
+category: shell:legacy-no
+stdin:
+ echo mir >foo
+ set -o noclobber
+ exec 3>&1
+ function threeout {
+ echo ras
+ echo dwa >&2
+ echo tri >&3
+ }
+ threeout &>>foo
+ echo ===
+ cat foo
+expected-stdout:
+ tri
+ ===
+ mir
+ ras
+ dwa
+---
+name: bashiop-3a
+description:
+ Check if GNU bash-like I/O redirection fails correctly
+ Part 1: this is also supported by GNU bash
+category: shell:legacy-no
+stdin:
+ echo mir >foo
+ set -o noclobber
+ exec 3>&1
+ function threeout {
+ echo ras
+ echo dwa >&2
+ echo tri >&3
+ }
+ threeout &>foo
+ echo ===
+ cat foo
+expected-stdout:
+ ===
+ mir
+expected-stderr-pattern: /.*: can't (create|overwrite) .*/
+---
+name: bashiop-3b
+description:
+ Check if GNU bash-like I/O redirection fails correctly
+ Part 2: this is *not* supported by GNU bash
+category: shell:legacy-no
+stdin:
+ echo mir >foo
+ set -o noclobber
+ exec 3>&1
+ function threeout {
+ echo ras
+ echo dwa >&2
+ echo tri >&3
+ }
+ threeout &>|foo
+ echo ===
+ cat foo
+expected-stdout:
+ tri
+ ===
+ ras
+ dwa
+---
+name: bashiop-4
+description:
+ Check if GNU bash-like I/O redirection works
+ Part 4: this is also supported by GNU bash,
+ but failed in some mksh versions
+category: shell:legacy-no
+stdin:
+ exec 3>&1
+ function threeout {
+ echo ras
+ echo dwa >&2
+ echo tri >&3
+ }
+ function blubb {
+ [[ -e bar ]] && threeout "$bf" &>foo
+ }
+ blubb
+ echo -n >bar
+ blubb
+ echo ===
+ cat foo
+expected-stdout:
+ tri
+ ===
+ ras
+ dwa
+---
+name: bashiop-5-normal
+description:
+ Check if GNU bash-like I/O redirection is only supported
+ in !POSIX !sh mode as it breaks existing scripts' syntax
+category: shell:legacy-no
+stdin:
+ :>x; echo 1 "$("$__progname" -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
+ :>x; echo 2 "$("$__progname" -o posix -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
+ :>x; echo 3 "$("$__progname" -o sh -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
+expected-stdout:
+ 1 = foo echo bar .
+ 2 = bar .
+ 3 = bar .
+---
+name: bashiop-5-legacy
+description:
+ Check if GNU bash-like I/O redirection is not parsed
+ in lksh as it breaks existing scripts' syntax
+category: shell:legacy-yes
+stdin:
+ :>x; echo 1 "$("$__progname" -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
+ :>x; echo 2 "$("$__progname" -o posix -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
+ :>x; echo 3 "$("$__progname" -o sh -c 'echo foo>/dev/null&>x echo bar')" = "$(<x)" .
+expected-stdout:
+ 1 = bar .
+ 2 = bar .
+ 3 = bar .
+---
+name: mkshiop-1
+description:
+ Check for support of more than 9 file descriptors
+category: !convfds
+stdin:
+ read -u10 foo 10<<< bar
+ echo x$foo
+expected-stdout:
+ xbar
+---
+name: mkshiop-2
+description:
+ Check for support of more than 9 file descriptors
+category: !convfds
+stdin:
+ exec 12>foo
+ print -u12 bar
+ echo baz >&12
+ cat foo
+expected-stdout:
+ bar
+ baz
+---
+name: oksh-eval
+description:
+ Check expansions.
+stdin:
+ a=
+ for n in ${a#*=}; do echo 1hu ${n} .; done
+ for n in "${a#*=}"; do echo 1hq ${n} .; done
+ for n in ${a##*=}; do echo 2hu ${n} .; done
+ for n in "${a##*=}"; do echo 2hq ${n} .; done
+ for n in ${a%=*}; do echo 1pu ${n} .; done
+ for n in "${a%=*}"; do echo 1pq ${n} .; done
+ for n in ${a%%=*}; do echo 2pu ${n} .; done
+ for n in "${a%%=*}"; do echo 2pq ${n} .; done
+expected-stdout:
+ 1hq .
+ 2hq .
+ 1pq .
+ 2pq .
+---
+name: oksh-and-list-error-1
+description:
+ Test exit status of rightmost element in 2 element && list in -e mode
+stdin:
+ true && false
+ echo "should not print"
+arguments: !-e!
+expected-exit: e != 0
+---
+name: oksh-and-list-error-2
+description:
+ Test exit status of rightmost element in 3 element && list in -e mode
+stdin:
+ true && true && false
+ echo "should not print"
+arguments: !-e!
+expected-exit: e != 0
+---
+name: oksh-or-list-error-1
+description:
+ Test exit status of || list in -e mode
+stdin:
+ false || false
+ echo "should not print"
+arguments: !-e!
+expected-exit: e != 0
+---
+name: oksh-longline-crash
+description:
+ This used to cause a core dump
+stdin:
+ ulimit -c 0
+ deplibs="-lz -lpng /usr/local/lib/libjpeg.la -ltiff -lm -lX11 -lXext /usr/local/lib/libiconv.la -L/usr/local/lib -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libglib.la /usr/local/lib/libgmodule.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgdk.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgtk.la -ltiff -ljpeg -lz -lpng -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgdk_pixbuf.la -lz -lpng /usr/local/lib/libiconv.la -L/usr/local/lib -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libglib.la -lm -lm /usr/local/lib/libaudiofile.la -lm -lm -laudiofile -L/usr/local/lib /usr/local/lib/libesd.la -lm -lz -L/usr/local/lib /usr/local/lib/libgnomesupport.la -lm -lz -lm -lglib -L/usr/local/lib /usr/local/lib/libgnome.la -lX11 -lXext /usr/local/lib/libiconv.la -L/usr/local/lib -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libgmodule.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgdk.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgtk.la -lICE -lSM -lz -lpng /usr/local/lib/libungif.la /usr/local/lib/libjpeg.la -ltiff -lm -lz -lpng /usr/local/lib/libungif.la -lz /usr/local/lib/libjpeg.la -ltiff -L/usr/local/lib -L/usr/X11R6/lib /usr/local/lib/libgdk_imlib.la -lm -L/usr/local/lib /usr/local/lib/libart_lgpl.la -lm -lz -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -lICE -lSM -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -L/usr/X11R6/lib -lm -lz -lpng -lungif -lz -ljpeg -ltiff -ljpeg -lgdk_imlib -lglib -lm -laudiofile -lm -laudiofile -lesd -L/usr/local/lib /usr/local/lib/libgnomeui.la -lz -lz /usr/local/lib/libxml.la -lz -lz -lz /usr/local/lib!
/libxml.la -lm -lX11 -lXext /usr/local/lib/libiconv.la -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libglib.la /usr/local/lib/libgmodule.la -lintl -lglib -lgmodule /usr/local/lib/libgdk.la /usr/local/lib/libgtk.la -L/usr/X11R6/lib -L/usr/local/lib /usr/local/lib/libglade.la -lz -lz -lz /usr/local/lib/libxml.la /usr/local/lib/libglib.la -lm -lm /usr/local/lib/libaudiofile.la -lm -lm -laudiofile /usr/local/lib/libesd.la -lm -lz /usr/local/lib/libgnomesupport.la -lm -lz -lm -lglib /usr/local/lib/libgnome.la -lX11 -lXext /usr/local/lib/libiconv.la -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libgmodule.la -lintl -lm -lX11 -lXext -lglib -lgmodule /usr/local/lib/libgdk.la -lintl -lm -lX11 -lXext -lglib -lgmodule /usr/local/lib/libgtk.la -lICE -lSM -lz -lpng /usr/local/lib/libungif.la /usr/local/lib/libjpeg.la -ltiff -lm -lz -lz /usr/local/lib/libgdk_imlib.la /usr/local/lib/libart_lgpl.la -lm -lz -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -lm -lz -lungif -lz -ljpeg -ljpeg -lgdk_imlib -lglib -lm -laudiofile -lm -laudiofile -lesd /usr/local/lib/libgnomeui.la -L/usr/X11R6/lib -L/usr/local/lib /usr/local/lib/libglade-gnome.la /usr/local/lib/libglib.la -lm -lm /usr/local/lib/libaudiofile.la -lm -lm -laudiofile -L/usr/local/lib /usr/local/lib/libesd.la -lm -lz -L/usr/local/lib /usr/local/lib/libgnomesupport.la -lm -lz -lm -lglib -L/usr/local/lib /usr/local/lib/libgnome.la -lX11 -lXext /usr/local/lib/libiconv.la -L/usr/local/lib -L/usr/ports/devel/gettext/w-gettext-0.10.40/gettext-0.10.40/intl/.libs /usr/local/lib/libintl.la /usr/local/lib/libgmodule.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgdk.la -lintl -lm -lX11 -lXext -L/usr/X11R6/lib -lglib -lgmodule -L/usr/local/lib /usr/local/lib/libgtk.la -lICE -lSM -lz -lpng /usr/local/lib/libungif.la /usr/local/lib/libjpeg.la -ltiff -!
lm -lz -lpng /usr/local/lib/libungif.la -lz /usr/local/lib/libjpeg.la -ltiff -L/usr/local/lib -L/usr/X11R6/lib /usr/local/lib/libgdk_imlib.la -lm -L/usr/local/lib /usr/local/lib/libart_lgpl.la -lm -lz -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -lICE -lSM -lm -lX11 -lXext -lintl -lglib -lgmodule -lgdk -lgtk -L/usr/X11R6/lib -lm -lz -lpng -lungif -lz -ljpeg -ltiff -ljpeg -lgdk_imlib -lglib -lm -laudiofile -lm -laudiofile -lesd -L/usr/local/lib /usr/local/lib/libgnomeui.la -L/usr/X11R6/lib -L/usr/local/lib"
+ specialdeplibs="-lgnomeui -lart_lgpl -lgdk_imlib -ltiff -ljpeg -lungif -lpng -lz -lSM -lICE -lgtk -lgdk -lgmodule -lintl -lXext -lX11 -lgnome -lgnomesupport -lesd -laudiofile -lm -lglib"
+ for deplib in $deplibs; do
+ case $deplib in
+ -L*)
+ new_libs="$deplib $new_libs"
+ ;;
+ *)
+ case " $specialdeplibs " in
+ *" $deplib "*)
+ new_libs="$deplib $new_libs";;
+ esac
+ ;;
+ esac
+ done
+---
+name: oksh-seterror-1
+description:
+ The -e flag should be ignored when executing a compound list
+ followed by an if statement.
+stdin:
+ if true; then false && false; fi
+ true
+arguments: !-e!
+expected-exit: e == 0
+---
+name: oksh-seterror-2
+description:
+ The -e flag should be ignored when executing a compound list
+ followed by an if statement.
+stdin:
+ if true; then if true; then false && false; fi; fi
+ true
+arguments: !-e!
+expected-exit: e == 0
+---
+name: oksh-seterror-3
+description:
+ The -e flag should be ignored when executing a compound list
+ followed by an elif statement.
+stdin:
+ if true; then :; elif true; then false && false; fi
+arguments: !-e!
+expected-exit: e == 0
+---
+name: oksh-seterror-4
+description:
+ The -e flag should be ignored when executing a pipeline
+ beginning with '!'
+stdin:
+ for i in 1 2 3
+ do
+ false && false
+ true || false
+ done
+arguments: !-e!
+expected-exit: e == 0
+---
+name: oksh-seterror-5
+description:
+ The -e flag should be ignored when executing a pipeline
+ beginning with '!'
+stdin:
+ ! true | false
+ true
+arguments: !-e!
+expected-exit: e == 0
+---
+name: oksh-seterror-6
+description:
+ When trapping ERR and EXIT, both traps should run in -e mode
+ when an error occurs.
+stdin:
+ trap 'echo EXIT' EXIT
+ trap 'echo ERR' ERR
+ set -e
+ false
+ echo DONE
+ exit 0
+arguments: !-e!
+expected-exit: e != 0
+expected-stdout:
+ ERR
+ EXIT
+---
+name: oksh-seterror-7
+description:
+ The -e flag within a command substitution should be honored
+stdin:
+ echo $( set -e; false; echo foo )
+arguments: !-e!
+expected-stdout:
+
+---
+name: oksh-input-comsub
+description:
+ A command substitution using input redirection should exit with
+ failure if the input file does not exist.
+stdin:
+ var=$(< non-existent)
+expected-exit: e != 0
+expected-stderr-pattern: /non-existent/
+---
+name: oksh-empty-for-list
+description:
+ A for list which expands to zero items should not execute the body.
+stdin:
+ set foo bar baz ; for out in ; do echo $out ; done
+---
+name: oksh-varfunction-mod1
+description:
+ (Inspired by PR 2450 on OpenBSD.) Calling
+ FOO=bar f
+ where f is a ksh style function, should not set FOO in the current
+ env. If f is a Bourne style function, FOO should be set. Furthermore,
+ the function should receive a correct value of FOO. However, differing
+ from oksh, setting FOO in the function itself must change the value in
+ setting FOO in the function itself should not change the value in
+ global environment.
+stdin:
+ print '#!'"$__progname"'\nunset RANDOM\nexport | while IFS= read -r' \
+ 'RANDOM; do eval '\''print -r -- "$RANDOM=$'\''"$RANDOM"'\'\"\'\; \
+ done >env; chmod +x env; PATH=.:$PATH
+ function k {
+ if [ x$FOO != xbar ]; then
+ echo 1
+ return 1
+ fi
+ x=$(env | grep FOO)
+ if [ "x$x" != "xFOO=bar" ]; then
+ echo 2
+ return 1;
+ fi
+ FOO=foo
+ return 0
+ }
+ b () {
+ if [ x$FOO != xbar ]; then
+ echo 3
+ return 1
+ fi
+ x=$(env | grep FOO)
+ if [ "x$x" != "xFOO=bar" ]; then
+ echo 4
+ return 1;
+ fi
+ FOO=foo
+ return 0
+ }
+ FOO=bar k
+ if [ $? != 0 ]; then
+ exit 1
+ fi
+ if [ x$FOO != x ]; then
+ exit 1
+ fi
+ FOO=bar b
+ if [ $? != 0 ]; then
+ exit 1
+ fi
+ if [ x$FOO != xfoo ]; then
+ exit 1
+ fi
+ FOO=barbar
+ FOO=bar k
+ if [ $? != 0 ]; then
+ exit 1
+ fi
+ if [ x$FOO != xbarbar ]; then
+ exit 1
+ fi
+ FOO=bar b
+ if [ $? != 0 ]; then
+ exit 1
+ fi
+ if [ x$FOO != xfoo ]; then
+ exit 1
+ fi
+---
+name: fd-cloexec-1
+description:
+ Verify that file descriptors > 2 are private for Korn shells
+ AT&T ksh93 does this still, which means we must keep it as well
+category: shell:legacy-no
+file-setup: file 644 "test.sh"
+ echo >&3 Fowl
+stdin:
+ exec 3>&1
+ "$__progname" test.sh
+expected-exit: e != 0
+expected-stderr-pattern:
+ /bad file descriptor/
+---
+name: fd-cloexec-2
+description:
+ Verify that file descriptors > 2 are not private for POSIX shells
+ See Debian Bug #154540, Closes: #499139
+file-setup: file 644 "test.sh"
+ echo >&3 Fowl
+stdin:
+ test -n "$POSH_VERSION" || set -o sh
+ exec 3>&1
+ "$__progname" test.sh
+expected-stdout:
+ Fowl
+---
+name: fd-cloexec-3
+description:
+ Verify that file descriptors > 2 are not private for LEGACY KSH
+category: shell:legacy-yes
+file-setup: file 644 "test.sh"
+ echo >&3 Fowl
+stdin:
+ exec 3>&1
+ "$__progname" test.sh
+expected-stdout:
+ Fowl
+---
+name: comsub-1a
+description:
+ COMSUB are now parsed recursively, so this works
+ see also regression-6: matching parenthesēs bug
+ Fails on: pdksh bash2 bash3 zsh
+ Passes on: bash4 ksh93 mksh(20110313+)
+stdin:
+ echo 1 $(case 1 in (1) echo yes;; (2) echo no;; esac) .
+ echo 2 $(case 1 in 1) echo yes;; 2) echo no;; esac) .
+ TEST=1234; echo 3 ${TEST: $(case 1 in (1) echo 1;; (*) echo 2;; esac)} .
+ TEST=5678; echo 4 ${TEST: $(case 1 in 1) echo 1;; *) echo 2;; esac)} .
+ a=($(case 1 in (1) echo 1;; (*) echo 2;; esac)); echo 5 ${a[0]} .
+ a=($(case 1 in 1) echo 1;; *) echo 2;; esac)); echo 6 ${a[0]} .
+expected-stdout:
+ 1 yes .
+ 2 yes .
+ 3 234 .
+ 4 678 .
+ 5 1 .
+ 6 1 .
+---
+name: comsub-1b
+description:
+ COMSUB are now parsed recursively, so this works
+ Fails on: pdksh bash2 bash3 bash4 zsh
+ Passes on: ksh93 mksh(20110313+)
+stdin:
+ echo 1 $(($(case 1 in (1) echo 1;; (*) echo 2;; esac)+10)) .
+ echo 2 $(($(case 1 in 1) echo 1;; *) echo 2;; esac)+20)) .
+ (( a = $(case 1 in (1) echo 1;; (*) echo 2;; esac) )); echo 3 $a .
+ (( a = $(case 1 in 1) echo 1;; *) echo 2;; esac) )); echo 4 $a .
+ a=($(($(case 1 in (1) echo 1;; (*) echo 2;; esac)+10))); echo 5 ${a[0]} .
+ a=($(($(case 1 in 1) echo 1;; *) echo 2;; esac)+20))); echo 6 ${a[0]} .
+expected-stdout:
+ 1 11 .
+ 2 21 .
+ 3 1 .
+ 4 1 .
+ 5 11 .
+ 6 21 .
+---
+name: comsub-2
+description:
+ RedHat BZ#496791 – another case of missing recursion
+ in parsing COMSUB expressions
+ Fails on: pdksh bash2 bash3¹ bash4¹ zsh
+ Passes on: ksh93 mksh(20110305+)
+ ① bash[34] seem to choke on comment ending with backslash-newline
+stdin:
+ # a comment with " ' \
+ x=$(
+ echo yes
+ # a comment with " ' \
+ )
+ echo $x
+expected-stdout:
+ yes
+---
+name: comsub-3
+description:
+ Extended test for COMSUB explaining why a recursive parser
+ is a must (a non-recursive parser cannot pass all three of
+ these test cases, especially the ‘#’ is difficult)
+stdin:
+ print '#!'"$__progname"'\necho 1234' >id; chmod +x id; PATH=.:$PATH
+ echo $(typeset -i10 x=16#20; echo $x)
+ echo $(typeset -Uui16 x=16#$(id -u)
+ ) .
+ echo $(c=1; d=1
+ typeset -Uui16 a=36#foo; c=2
+ typeset -Uui16 b=36 #foo; d=2
+ echo $a $b $c $d)
+expected-stdout:
+ 32
+ .
+ 16#4F68 16#24 2 1
+---
+name: comsub-4
+description:
+ Check the tree dump functions for !MKSH_SMALL functionality
+category: !smksh
+stdin:
+ x() { case $1 in u) echo x ;;& *) echo $1 ;; esac; }
+ typeset -f x
+expected-stdout:
+ x() {
+ case $1 in
+ (u)
+ echo x
+ ;|
+ (*)
+ echo $1
+ ;;
+ esac
+ }
+---
+name: comsub-5
+description:
+ Check COMSUB works with aliases (does not expand them twice)
+stdin:
+ print '#!'"$__progname"'\nfor x in "$@"; do print -r -- "$x"; done' >pfn
+ chmod +x pfn
+ alias echo='echo a'
+ foo() {
+ ./pfn "$(echo foo)"
+ }
+ ./pfn "$(echo b)"
+ typeset -f foo
+expected-stdout:
+ a b
+ foo() {
+ ./pfn "$(echo foo )"
+ }
+---
+name: comsub-torture
+description:
+ Check the tree dump functions work correctly
+stdin:
+ if [[ -z $__progname ]]; then echo >&2 call me with __progname; exit 1; fi
+ while IFS= read -r line; do
+ if [[ $line = '#1' ]]; then
+ lastf=0
+ continue
+ elif [[ $line = EOFN* ]]; then
+ fbody=$fbody$'\n'$line
+ continue
+ elif [[ $line != '#'* ]]; then
+ fbody=$fbody$'\n\t'$line
+ continue
+ fi
+ if (( lastf )); then
+ x="inline_${nextf}() {"$fbody$'\n}\n'
+ print -nr -- "$x"
+ print -r -- "${x}typeset -f inline_$nextf" | "$__progname"
+ x="function comsub_$nextf { x=\$("$fbody$'\n); }\n'
+ print -nr -- "$x"
+ print -r -- "${x}typeset -f comsub_$nextf" | "$__progname"
+ x="function reread_$nextf { x=\$(("$fbody$'\n)|tr u x); }\n'
+ print -nr -- "$x"
+ print -r -- "${x}typeset -f reread_$nextf" | "$__progname"
+ fi
+ lastf=1
+ fbody=
+ nextf=${line#?}
+ done <<'EOD'
+ #1
+ #TCOM
+ vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4"
+ #TPAREN_TPIPE_TLIST
+ (echo $foo | tr -dc 0-9; echo)
+ #TAND_TOR
+ cmd && echo ja || echo nein
+ #TSELECT
+ select file in *; do echo "<$file>" ; break ; done
+ #TFOR_TTIME
+ time for i in {1,2,3} ; do echo $i ; done
+ #TCASE
+ case $foo in 1) echo eins;& 2) echo zwei ;| *) echo kann net bis drei zählen;; esac
+ #TIF_TBANG_TDBRACKET_TELIF
+ if ! [[ 1 = 1 ]] ; then echo eins; elif [[ 1 = 2 ]]; then echo zwei ;else echo drei; fi
+ #TWHILE
+ i=1; while (( i < 10 )); do echo $i; let ++i; done
+ #TUNTIL
+ i=10; until (( !--i )) ; do echo $i; done
+ #TCOPROC
+ cat * |& ls
+ #TFUNCT_TBRACE_TASYNC
+ function korn { echo eins; echo zwei ; }
+ bourne () { logger * & }
+ #IOREAD_IOCAT
+ tr x u 0<foo >>bar
+ #IOWRITE_IOCLOB_IOHERE_noIOSKIP
+ cat >|bar <<'EOFN'
+ foo
+ EOFN
+ #IOWRITE_noIOCLOB_IOHERE_IOSKIP
+ cat 1>bar <<-EOFI
+ foo
+ EOFI
+ #IORDWR_IODUP
+ sh 1<>/dev/console 0<&1 2>&1
+ #COMSUB_EXPRSUB_FUNSUB_VALSUB
+ echo $(true) $((1+ 2)) ${ :;} ${| REPLY=x;}
+ #QCHAR_OQUOTE_CQUOTE
+ echo fo\ob\"a\`r\'b\$az
+ echo "fo\ob\"a\`r\'b\$az"
+ echo 'fo\ob\"a\`r'\''b\$az'
+ #OSUBST_CSUBST_OPAT_SPAT_CPAT
+ [[ ${foo#bl\(u\)b} = @(bar|baz) ]]
+ #heredoc_closed
+ x=$(cat <<EOFN
+ note there must be no space between EOFN and )
+ EOFN); echo $x
+ #heredoc_space
+ x=$(cat <<EOFN\
+ note the space between EOFN and ) is actually part of the here document marker
+ EOFN ); echo $x
+ #patch_motd
+ x=$(sysctl -n kern.version | sed 1q)
+ [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
+ ed -s /etc/motd 2>&1 <<-EOF
+ 1,/^\$/d
+ 0a
+ $x
+
+ .
+ wq
+ EOF)" = @(?) ]] && rm -f /etc/motd
+ if [[ ! -s /etc/motd ]]; then
+ install -c -o root -g wheel -m 664 /dev/null /etc/motd
+ print -- "$x\n" >/etc/motd
+ fi
+ #wdarrassign
+ case x in
+ x) a+=b; c+=(d e)
+ esac
+ #0
+ EOD
+expected-stdout:
+ inline_TCOM() {
+ vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4"
+ }
+ inline_TCOM() {
+ vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4"
+ }
+ function comsub_TCOM { x=$(
+ vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4"
+ ); }
+ function comsub_TCOM {
+ x=$(vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4" )
+ }
+ function reread_TCOM { x=$((
+ vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4"
+ )|tr u x); }
+ function reread_TCOM {
+ x=$(( vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4" ) | tr u x )
+ }
+ inline_TPAREN_TPIPE_TLIST() {
+ (echo $foo | tr -dc 0-9; echo)
+ }
+ inline_TPAREN_TPIPE_TLIST() {
+ ( echo $foo | tr -dc 0-9
+ echo )
+ }
+ function comsub_TPAREN_TPIPE_TLIST { x=$(
+ (echo $foo | tr -dc 0-9; echo)
+ ); }
+ function comsub_TPAREN_TPIPE_TLIST {
+ x=$(( echo $foo | tr -dc 0-9 ; echo ) )
+ }
+ function reread_TPAREN_TPIPE_TLIST { x=$((
+ (echo $foo | tr -dc 0-9; echo)
+ )|tr u x); }
+ function reread_TPAREN_TPIPE_TLIST {
+ x=$(( ( echo $foo | tr -dc 0-9 ; echo ) ) | tr u x )
+ }
+ inline_TAND_TOR() {
+ cmd && echo ja || echo nein
+ }
+ inline_TAND_TOR() {
+ cmd && echo ja || echo nein
+ }
+ function comsub_TAND_TOR { x=$(
+ cmd && echo ja || echo nein
+ ); }
+ function comsub_TAND_TOR {
+ x=$(cmd && echo ja || echo nein )
+ }
+ function reread_TAND_TOR { x=$((
+ cmd && echo ja || echo nein
+ )|tr u x); }
+ function reread_TAND_TOR {
+ x=$(( cmd && echo ja || echo nein ) | tr u x )
+ }
+ inline_TSELECT() {
+ select file in *; do echo "<$file>" ; break ; done
+ }
+ inline_TSELECT() {
+ select file in *
+ do
+ echo "<$file>"
+ break
+ done
+ }
+ function comsub_TSELECT { x=$(
+ select file in *; do echo "<$file>" ; break ; done
+ ); }
+ function comsub_TSELECT {
+ x=$(select file in * ; do echo "<$file>" ; break ; done )
+ }
+ function reread_TSELECT { x=$((
+ select file in *; do echo "<$file>" ; break ; done
+ )|tr u x); }
+ function reread_TSELECT {
+ x=$(( select file in * ; do echo "<$file>" ; break ; done ) | tr u x )
+ }
+ inline_TFOR_TTIME() {
+ time for i in {1,2,3} ; do echo $i ; done
+ }
+ inline_TFOR_TTIME() {
+ time for i in {1,2,3}
+ do
+ echo $i
+ done
+ }
+ function comsub_TFOR_TTIME { x=$(
+ time for i in {1,2,3} ; do echo $i ; done
+ ); }
+ function comsub_TFOR_TTIME {
+ x=$(time for i in {1,2,3} ; do echo $i ; done )
+ }
+ function reread_TFOR_TTIME { x=$((
+ time for i in {1,2,3} ; do echo $i ; done
+ )|tr u x); }
+ function reread_TFOR_TTIME {
+ x=$(( time for i in {1,2,3} ; do echo $i ; done ) | tr u x )
+ }
+ inline_TCASE() {
+ case $foo in 1) echo eins;& 2) echo zwei ;| *) echo kann net bis drei zählen;; esac
+ }
+ inline_TCASE() {
+ case $foo in
+ (1)
+ echo eins
+ ;&
+ (2)
+ echo zwei
+ ;|
+ (*)
+ echo kann net bis drei zählen
+ ;;
+ esac
+ }
+ function comsub_TCASE { x=$(
+ case $foo in 1) echo eins;& 2) echo zwei ;| *) echo kann net bis drei zählen;; esac
+ ); }
+ function comsub_TCASE {
+ x=$(case $foo in (1) echo eins ;& (2) echo zwei ;| (*) echo kann net bis drei zählen ;; esac )
+ }
+ function reread_TCASE { x=$((
+ case $foo in 1) echo eins;& 2) echo zwei ;| *) echo kann net bis drei zählen;; esac
+ )|tr u x); }
+ function reread_TCASE {
+ x=$(( case $foo in (1) echo eins ;& (2) echo zwei ;| (*) echo kann net bis drei zählen ;; esac ) | tr u x )
+ }
+ inline_TIF_TBANG_TDBRACKET_TELIF() {
+ if ! [[ 1 = 1 ]] ; then echo eins; elif [[ 1 = 2 ]]; then echo zwei ;else echo drei; fi
+ }
+ inline_TIF_TBANG_TDBRACKET_TELIF() {
+ if ! [[ 1 = 1 ]]
+ then
+ echo eins
+ elif [[ 1 = 2 ]]
+ then
+ echo zwei
+ else
+ echo drei
+ fi
+ }
+ function comsub_TIF_TBANG_TDBRACKET_TELIF { x=$(
+ if ! [[ 1 = 1 ]] ; then echo eins; elif [[ 1 = 2 ]]; then echo zwei ;else echo drei; fi
+ ); }
+ function comsub_TIF_TBANG_TDBRACKET_TELIF {
+ x=$(if ! [[ 1 = 1 ]] ; then echo eins ; elif [[ 1 = 2 ]] ; then echo zwei ; else echo drei ; fi )
+ }
+ function reread_TIF_TBANG_TDBRACKET_TELIF { x=$((
+ if ! [[ 1 = 1 ]] ; then echo eins; elif [[ 1 = 2 ]]; then echo zwei ;else echo drei; fi
+ )|tr u x); }
+ function reread_TIF_TBANG_TDBRACKET_TELIF {
+ x=$(( if ! [[ 1 = 1 ]] ; then echo eins ; elif [[ 1 = 2 ]] ; then echo zwei ; else echo drei ; fi ) | tr u x )
+ }
+ inline_TWHILE() {
+ i=1; while (( i < 10 )); do echo $i; let ++i; done
+ }
+ inline_TWHILE() {
+ i=1
+ while let] " i < 10 "
+ do
+ echo $i
+ let ++i
+ done
+ }
+ function comsub_TWHILE { x=$(
+ i=1; while (( i < 10 )); do echo $i; let ++i; done
+ ); }
+ function comsub_TWHILE {
+ x=$(i=1 ; while let] " i < 10 " ; do echo $i ; let ++i ; done )
+ }
+ function reread_TWHILE { x=$((
+ i=1; while (( i < 10 )); do echo $i; let ++i; done
+ )|tr u x); }
+ function reread_TWHILE {
+ x=$(( i=1 ; while let] " i < 10 " ; do echo $i ; let ++i ; done ) | tr u x )
+ }
+ inline_TUNTIL() {
+ i=10; until (( !--i )) ; do echo $i; done
+ }
+ inline_TUNTIL() {
+ i=10
+ until let] " !--i "
+ do
+ echo $i
+ done
+ }
+ function comsub_TUNTIL { x=$(
+ i=10; until (( !--i )) ; do echo $i; done
+ ); }
+ function comsub_TUNTIL {
+ x=$(i=10 ; until let] " !--i " ; do echo $i ; done )
+ }
+ function reread_TUNTIL { x=$((
+ i=10; until (( !--i )) ; do echo $i; done
+ )|tr u x); }
+ function reread_TUNTIL {
+ x=$(( i=10 ; until let] " !--i " ; do echo $i ; done ) | tr u x )
+ }
+ inline_TCOPROC() {
+ cat * |& ls
+ }
+ inline_TCOPROC() {
+ cat * |&
+ ls
+ }
+ function comsub_TCOPROC { x=$(
+ cat * |& ls
+ ); }
+ function comsub_TCOPROC {
+ x=$(cat * |& ls )
+ }
+ function reread_TCOPROC { x=$((
+ cat * |& ls
+ )|tr u x); }
+ function reread_TCOPROC {
+ x=$(( cat * |& ls ) | tr u x )
+ }
+ inline_TFUNCT_TBRACE_TASYNC() {
+ function korn { echo eins; echo zwei ; }
+ bourne () { logger * & }
+ }
+ inline_TFUNCT_TBRACE_TASYNC() {
+ function korn {
+ echo eins
+ echo zwei
+ }
+ bourne() {
+ logger * &
+ }
+ }
+ function comsub_TFUNCT_TBRACE_TASYNC { x=$(
+ function korn { echo eins; echo zwei ; }
+ bourne () { logger * & }
+ ); }
+ function comsub_TFUNCT_TBRACE_TASYNC {
+ x=$(function korn { echo eins ; echo zwei ; } ; bourne() { logger * & } )
+ }
+ function reread_TFUNCT_TBRACE_TASYNC { x=$((
+ function korn { echo eins; echo zwei ; }
+ bourne () { logger * & }
+ )|tr u x); }
+ function reread_TFUNCT_TBRACE_TASYNC {
+ x=$(( function korn { echo eins ; echo zwei ; } ; bourne() { logger * & } ) | tr u x )
+ }
+ inline_IOREAD_IOCAT() {
+ tr x u 0<foo >>bar
+ }
+ inline_IOREAD_IOCAT() {
+ tr x u <foo >>bar
+ }
+ function comsub_IOREAD_IOCAT { x=$(
+ tr x u 0<foo >>bar
+ ); }
+ function comsub_IOREAD_IOCAT {
+ x=$(tr x u <foo >>bar )
+ }
+ function reread_IOREAD_IOCAT { x=$((
+ tr x u 0<foo >>bar
+ )|tr u x); }
+ function reread_IOREAD_IOCAT {
+ x=$(( tr x u <foo >>bar ) | tr u x )
+ }
+ inline_IOWRITE_IOCLOB_IOHERE_noIOSKIP() {
+ cat >|bar <<'EOFN'
+ foo
+ EOFN
+ }
+ inline_IOWRITE_IOCLOB_IOHERE_noIOSKIP() {
+ cat >|bar <<"EOFN"
+ foo
+ EOFN
+
+ }
+ function comsub_IOWRITE_IOCLOB_IOHERE_noIOSKIP { x=$(
+ cat >|bar <<'EOFN'
+ foo
+ EOFN
+ ); }
+ function comsub_IOWRITE_IOCLOB_IOHERE_noIOSKIP {
+ x=$(cat >|bar <<"EOFN"
+ foo
+ EOFN
+ )
+ }
+ function reread_IOWRITE_IOCLOB_IOHERE_noIOSKIP { x=$((
+ cat >|bar <<'EOFN'
+ foo
+ EOFN
+ )|tr u x); }
+ function reread_IOWRITE_IOCLOB_IOHERE_noIOSKIP {
+ x=$(( cat >|bar <<"EOFN"
+ foo
+ EOFN
+ ) | tr u x )
+ }
+ inline_IOWRITE_noIOCLOB_IOHERE_IOSKIP() {
+ cat 1>bar <<-EOFI
+ foo
+ EOFI
+ }
+ inline_IOWRITE_noIOCLOB_IOHERE_IOSKIP() {
+ cat >bar <<-EOFI
+ foo
+ EOFI
+
+ }
+ function comsub_IOWRITE_noIOCLOB_IOHERE_IOSKIP { x=$(
+ cat 1>bar <<-EOFI
+ foo
+ EOFI
+ ); }
+ function comsub_IOWRITE_noIOCLOB_IOHERE_IOSKIP {
+ x=$(cat >bar <<-EOFI
+ foo
+ EOFI
+ )
+ }
+ function reread_IOWRITE_noIOCLOB_IOHERE_IOSKIP { x=$((
+ cat 1>bar <<-EOFI
+ foo
+ EOFI
+ )|tr u x); }
+ function reread_IOWRITE_noIOCLOB_IOHERE_IOSKIP {
+ x=$(( cat >bar <<-EOFI
+ foo
+ EOFI
+ ) | tr u x )
+ }
+ inline_IORDWR_IODUP() {
+ sh 1<>/dev/console 0<&1 2>&1
+ }
+ inline_IORDWR_IODUP() {
+ sh 1<>/dev/console <&1 2>&1
+ }
+ function comsub_IORDWR_IODUP { x=$(
+ sh 1<>/dev/console 0<&1 2>&1
+ ); }
+ function comsub_IORDWR_IODUP {
+ x=$(sh 1<>/dev/console <&1 2>&1 )
+ }
+ function reread_IORDWR_IODUP { x=$((
+ sh 1<>/dev/console 0<&1 2>&1
+ )|tr u x); }
+ function reread_IORDWR_IODUP {
+ x=$(( sh 1<>/dev/console <&1 2>&1 ) | tr u x )
+ }
+ inline_COMSUB_EXPRSUB_FUNSUB_VALSUB() {
+ echo $(true) $((1+ 2)) ${ :;} ${| REPLY=x;}
+ }
+ inline_COMSUB_EXPRSUB_FUNSUB_VALSUB() {
+ echo $(true ) $((1+ 2)) ${ : ;} ${|REPLY=x ;}
+ }
+ function comsub_COMSUB_EXPRSUB_FUNSUB_VALSUB { x=$(
+ echo $(true) $((1+ 2)) ${ :;} ${| REPLY=x;}
+ ); }
+ function comsub_COMSUB_EXPRSUB_FUNSUB_VALSUB {
+ x=$(echo $(true ) $((1+ 2)) ${ : ;} ${|REPLY=x ;} )
+ }
+ function reread_COMSUB_EXPRSUB_FUNSUB_VALSUB { x=$((
+ echo $(true) $((1+ 2)) ${ :;} ${| REPLY=x;}
+ )|tr u x); }
+ function reread_COMSUB_EXPRSUB_FUNSUB_VALSUB {
+ x=$(( echo $(true ) $((1+ 2)) ${ : ;} ${|REPLY=x ;} ) | tr u x )
+ }
+ inline_QCHAR_OQUOTE_CQUOTE() {
+ echo fo\ob\"a\`r\'b\$az
+ echo "fo\ob\"a\`r\'b\$az"
+ echo 'fo\ob\"a\`r'\''b\$az'
+ }
+ inline_QCHAR_OQUOTE_CQUOTE() {
+ echo fo\ob\"a\`r\'b\$az
+ echo "fo\ob\"a\`r\'b\$az"
+ echo "fo\\ob\\\"a\\\`r"\'"b\\\$az"
+ }
+ function comsub_QCHAR_OQUOTE_CQUOTE { x=$(
+ echo fo\ob\"a\`r\'b\$az
+ echo "fo\ob\"a\`r\'b\$az"
+ echo 'fo\ob\"a\`r'\''b\$az'
+ ); }
+ function comsub_QCHAR_OQUOTE_CQUOTE {
+ x=$(echo fo\ob\"a\`r\'b\$az ; echo "fo\ob\"a\`r\'b\$az" ; echo "fo\\ob\\\"a\\\`r"\'"b\\\$az" )
+ }
+ function reread_QCHAR_OQUOTE_CQUOTE { x=$((
+ echo fo\ob\"a\`r\'b\$az
+ echo "fo\ob\"a\`r\'b\$az"
+ echo 'fo\ob\"a\`r'\''b\$az'
+ )|tr u x); }
+ function reread_QCHAR_OQUOTE_CQUOTE {
+ x=$(( echo fo\ob\"a\`r\'b\$az ; echo "fo\ob\"a\`r\'b\$az" ; echo "fo\\ob\\\"a\\\`r"\'"b\\\$az" ) | tr u x )
+ }
+ inline_OSUBST_CSUBST_OPAT_SPAT_CPAT() {
+ [[ ${foo#bl\(u\)b} = @(bar|baz) ]]
+ }
+ inline_OSUBST_CSUBST_OPAT_SPAT_CPAT() {
+ [[ ${foo#bl\(u\)b} = @(bar|baz) ]]
+ }
+ function comsub_OSUBST_CSUBST_OPAT_SPAT_CPAT { x=$(
+ [[ ${foo#bl\(u\)b} = @(bar|baz) ]]
+ ); }
+ function comsub_OSUBST_CSUBST_OPAT_SPAT_CPAT {
+ x=$([[ ${foo#bl\(u\)b} = @(bar|baz) ]] )
+ }
+ function reread_OSUBST_CSUBST_OPAT_SPAT_CPAT { x=$((
+ [[ ${foo#bl\(u\)b} = @(bar|baz) ]]
+ )|tr u x); }
+ function reread_OSUBST_CSUBST_OPAT_SPAT_CPAT {
+ x=$(( [[ ${foo#bl\(u\)b} = @(bar|baz) ]] ) | tr u x )
+ }
+ inline_heredoc_closed() {
+ x=$(cat <<EOFN
+ note there must be no space between EOFN and )
+ EOFN); echo $x
+ }
+ inline_heredoc_closed() {
+ x=$(cat <<EOFN
+ note there must be no space between EOFN and )
+ EOFN
+ )
+ echo $x
+ }
+ function comsub_heredoc_closed { x=$(
+ x=$(cat <<EOFN
+ note there must be no space between EOFN and )
+ EOFN); echo $x
+ ); }
+ function comsub_heredoc_closed {
+ x=$(x=$(cat <<EOFN
+ note there must be no space between EOFN and )
+ EOFN
+ ) ; echo $x )
+ }
+ function reread_heredoc_closed { x=$((
+ x=$(cat <<EOFN
+ note there must be no space between EOFN and )
+ EOFN); echo $x
+ )|tr u x); }
+ function reread_heredoc_closed {
+ x=$(( x=$(cat <<EOFN
+ note there must be no space between EOFN and )
+ EOFN
+ ) ; echo $x ) | tr u x )
+ }
+ inline_heredoc_space() {
+ x=$(cat <<EOFN\
+ note the space between EOFN and ) is actually part of the here document marker
+ EOFN ); echo $x
+ }
+ inline_heredoc_space() {
+ x=$(cat <<EOFN\
+ note the space between EOFN and ) is actually part of the here document marker
+ EOFN
+ )
+ echo $x
+ }
+ function comsub_heredoc_space { x=$(
+ x=$(cat <<EOFN\
+ note the space between EOFN and ) is actually part of the here document marker
+ EOFN ); echo $x
+ ); }
+ function comsub_heredoc_space {
+ x=$(x=$(cat <<EOFN\
+ note the space between EOFN and ) is actually part of the here document marker
+ EOFN
+ ) ; echo $x )
+ }
+ function reread_heredoc_space { x=$((
+ x=$(cat <<EOFN\
+ note the space between EOFN and ) is actually part of the here document marker
+ EOFN ); echo $x
+ )|tr u x); }
+ function reread_heredoc_space {
+ x=$(( x=$(cat <<EOFN\
+ note the space between EOFN and ) is actually part of the here document marker
+ EOFN
+ ) ; echo $x ) | tr u x )
+ }
+ inline_patch_motd() {
+ x=$(sysctl -n kern.version | sed 1q)
+ [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
+ ed -s /etc/motd 2>&1 <<-EOF
+ 1,/^\$/d
+ 0a
+ $x
+
+ .
+ wq
+ EOF)" = @(?) ]] && rm -f /etc/motd
+ if [[ ! -s /etc/motd ]]; then
+ install -c -o root -g wheel -m 664 /dev/null /etc/motd
+ print -- "$x\n" >/etc/motd
+ fi
+ }
+ inline_patch_motd() {
+ x=$(sysctl -n kern.version | sed 1q )
+ [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd )" != $x ]] && ed -s /etc/motd 2>&1 <<-EOF
+ 1,/^\$/d
+ 0a
+ $x
+
+ .
+ wq
+ EOF
+ )" = @(?) ]] && rm -f /etc/motd
+ if [[ ! -s /etc/motd ]]
+ then
+ install -c -o root -g wheel -m 664 /dev/null /etc/motd
+ print -- "$x\n" >/etc/motd
+ fi
+ }
+ function comsub_patch_motd { x=$(
+ x=$(sysctl -n kern.version | sed 1q)
+ [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
+ ed -s /etc/motd 2>&1 <<-EOF
+ 1,/^\$/d
+ 0a
+ $x
+
+ .
+ wq
+ EOF)" = @(?) ]] && rm -f /etc/motd
+ if [[ ! -s /etc/motd ]]; then
+ install -c -o root -g wheel -m 664 /dev/null /etc/motd
+ print -- "$x\n" >/etc/motd
+ fi
+ ); }
+ function comsub_patch_motd {
+ x=$(x=$(sysctl -n kern.version | sed 1q ) ; [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd )" != $x ]] && ed -s /etc/motd 2>&1 <<-EOF
+ 1,/^\$/d
+ 0a
+ $x
+
+ .
+ wq
+ EOF
+ )" = @(?) ]] && rm -f /etc/motd ; if [[ ! -s /etc/motd ]] ; then install -c -o root -g wheel -m 664 /dev/null /etc/motd ; print -- "$x\n" >/etc/motd ; fi )
+ }
+ function reread_patch_motd { x=$((
+ x=$(sysctl -n kern.version | sed 1q)
+ [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd)" != $x ]] && \
+ ed -s /etc/motd 2>&1 <<-EOF
+ 1,/^\$/d
+ 0a
+ $x
+
+ .
+ wq
+ EOF)" = @(?) ]] && rm -f /etc/motd
+ if [[ ! -s /etc/motd ]]; then
+ install -c -o root -g wheel -m 664 /dev/null /etc/motd
+ print -- "$x\n" >/etc/motd
+ fi
+ )|tr u x); }
+ function reread_patch_motd {
+ x=$(( x=$(sysctl -n kern.version | sed 1q ) ; [[ -s /etc/motd && "$([[ "$(head -1 /etc/motd )" != $x ]] && ed -s /etc/motd 2>&1 <<-EOF
+ 1,/^\$/d
+ 0a
+ $x
+
+ .
+ wq
+ EOF
+ )" = @(?) ]] && rm -f /etc/motd ; if [[ ! -s /etc/motd ]] ; then install -c -o root -g wheel -m 664 /dev/null /etc/motd ; print -- "$x\n" >/etc/motd ; fi ) | tr u x )
+ }
+ inline_wdarrassign() {
+ case x in
+ x) a+=b; c+=(d e)
+ esac
+ }
+ inline_wdarrassign() {
+ case x in
+ (x)
+ a+=b
+ set -A c+ -- d e
+ ;;
+ esac
+ }
+ function comsub_wdarrassign { x=$(
+ case x in
+ x) a+=b; c+=(d e)
+ esac
+ ); }
+ function comsub_wdarrassign {
+ x=$(case x in (x) a+=b ; set -A c+ -- d e ;; esac )
+ }
+ function reread_wdarrassign { x=$((
+ case x in
+ x) a+=b; c+=(d e)
+ esac
+ )|tr u x); }
+ function reread_wdarrassign {
+ x=$(( case x in (x) a+=b ; set -A c+ -- d e ;; esac ) | tr u x )
+ }
+---
+name: comsub-torture-io
+description:
+ Check the tree dump functions work correctly with I/O redirection
+stdin:
+ if [[ -z $__progname ]]; then echo >&2 call me with __progname; exit 1; fi
+ while IFS= read -r line; do
+ if [[ $line = '#1' ]]; then
+ lastf=0
+ continue
+ elif [[ $line = EOFN* ]]; then
+ fbody=$fbody$'\n'$line
+ continue
+ elif [[ $line != '#'* ]]; then
+ fbody=$fbody$'\n\t'$line
+ continue
+ fi
+ if (( lastf )); then
+ x="inline_${nextf}() {"$fbody$'\n}\n'
+ print -nr -- "$x"
+ print -r -- "${x}typeset -f inline_$nextf" | "$__progname"
+ x="function comsub_$nextf { x=\$("$fbody$'\n); }\n'
+ print -nr -- "$x"
+ print -r -- "${x}typeset -f comsub_$nextf" | "$__progname"
+ x="function reread_$nextf { x=\$(("$fbody$'\n)|tr u x); }\n'
+ print -nr -- "$x"
+ print -r -- "${x}typeset -f reread_$nextf" | "$__progname"
+ fi
+ lastf=1
+ fbody=
+ nextf=${line#?}
+ done <<'EOD'
+ #1
+ #TCOM
+ vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4" >&3
+ #TPAREN_TPIPE_TLIST
+ (echo $foo | tr -dc 0-9 >&3; echo >&3) >&3
+ #TAND_TOR
+ cmd >&3 && >&3 echo ja || echo >&3 nein
+ #TSELECT
+ select file in *; do echo "<$file>" ; break >&3 ; done >&3
+ #TFOR_TTIME
+ for i in {1,2,3} ; do time >&3 echo $i ; done >&3
+ #TCASE
+ case $foo in 1) echo eins >&3;& 2) echo zwei >&3 ;| *) echo kann net bis drei zählen >&3;; esac >&3
+ #TIF_TBANG_TDBRACKET_TELIF
+ if ! [[ 1 = 1 ]] >&3 ; then echo eins; elif [[ 1 = 2 ]] >&3; then echo zwei ;else echo drei; fi >&3
+ #TWHILE
+ i=1; while (( i < 10 )) >&3; do echo $i; let ++i; done >&3
+ #TUNTIL
+ i=10; until (( !--i )) >&3 ; do echo $i; done >&3
+ #TCOPROC
+ cat * >&3 |& >&3 ls
+ #TFUNCT_TBRACE_TASYNC
+ function korn { echo eins; echo >&3 zwei ; }
+ bourne () { logger * >&3 & }
+ #COMSUB_EXPRSUB
+ echo $(true >&3) $((1+ 2))
+ #0
+ EOD
+expected-stdout:
+ inline_TCOM() {
+ vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4" >&3
+ }
+ inline_TCOM() {
+ vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4" >&3
+ }
+ function comsub_TCOM { x=$(
+ vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4" >&3
+ ); }
+ function comsub_TCOM {
+ x=$(vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4" >&3 )
+ }
+ function reread_TCOM { x=$((
+ vara=1 varb='2 3' cmd arg1 $arg2 "$arg3 4" >&3
+ )|tr u x); }
+ function reread_TCOM {
+ x=$(( vara=1 varb="2 3" cmd arg1 $arg2 "$arg3 4" >&3 ) | tr u x )
+ }
+ inline_TPAREN_TPIPE_TLIST() {
+ (echo $foo | tr -dc 0-9 >&3; echo >&3) >&3
+ }
+ inline_TPAREN_TPIPE_TLIST() {
+ ( echo $foo | tr -dc 0-9 >&3
+ echo >&3 ) >&3
+ }
+ function comsub_TPAREN_TPIPE_TLIST { x=$(
+ (echo $foo | tr -dc 0-9 >&3; echo >&3) >&3
+ ); }
+ function comsub_TPAREN_TPIPE_TLIST {
+ x=$(( echo $foo | tr -dc 0-9 >&3 ; echo >&3 ) >&3 )
+ }
+ function reread_TPAREN_TPIPE_TLIST { x=$((
+ (echo $foo | tr -dc 0-9 >&3; echo >&3) >&3
+ )|tr u x); }
+ function reread_TPAREN_TPIPE_TLIST {
+ x=$(( ( echo $foo | tr -dc 0-9 >&3 ; echo >&3 ) >&3 ) | tr u x )
+ }
+ inline_TAND_TOR() {
+ cmd >&3 && >&3 echo ja || echo >&3 nein
+ }
+ inline_TAND_TOR() {
+ cmd >&3 && echo ja >&3 || echo nein >&3
+ }
+ function comsub_TAND_TOR { x=$(
+ cmd >&3 && >&3 echo ja || echo >&3 nein
+ ); }
+ function comsub_TAND_TOR {
+ x=$(cmd >&3 && echo ja >&3 || echo nein >&3 )
+ }
+ function reread_TAND_TOR { x=$((
+ cmd >&3 && >&3 echo ja || echo >&3 nein
+ )|tr u x); }
+ function reread_TAND_TOR {
+ x=$(( cmd >&3 && echo ja >&3 || echo nein >&3 ) | tr u x )
+ }
+ inline_TSELECT() {
+ select file in *; do echo "<$file>" ; break >&3 ; done >&3
+ }
+ inline_TSELECT() {
+ select file in *
+ do
+ echo "<$file>"
+ break >&3
+ done >&3
+ }
+ function comsub_TSELECT { x=$(
+ select file in *; do echo "<$file>" ; break >&3 ; done >&3
+ ); }
+ function comsub_TSELECT {
+ x=$(select file in * ; do echo "<$file>" ; break >&3 ; done >&3 )
+ }
+ function reread_TSELECT { x=$((
+ select file in *; do echo "<$file>" ; break >&3 ; done >&3
+ )|tr u x); }
+ function reread_TSELECT {
+ x=$(( select file in * ; do echo "<$file>" ; break >&3 ; done >&3 ) | tr u x )
+ }
+ inline_TFOR_TTIME() {
+ for i in {1,2,3} ; do time >&3 echo $i ; done >&3
+ }
+ inline_TFOR_TTIME() {
+ for i in {1,2,3}
+ do
+ time echo $i >&3
+ done >&3
+ }
+ function comsub_TFOR_TTIME { x=$(
+ for i in {1,2,3} ; do time >&3 echo $i ; done >&3
+ ); }
+ function comsub_TFOR_TTIME {
+ x=$(for i in {1,2,3} ; do time echo $i >&3 ; done >&3 )
+ }
+ function reread_TFOR_TTIME { x=$((
+ for i in {1,2,3} ; do time >&3 echo $i ; done >&3
+ )|tr u x); }
+ function reread_TFOR_TTIME {
+ x=$(( for i in {1,2,3} ; do time echo $i >&3 ; done >&3 ) | tr u x )
+ }
+ inline_TCASE() {
+ case $foo in 1) echo eins >&3;& 2) echo zwei >&3 ;| *) echo kann net bis drei zählen >&3;; esac >&3
+ }
+ inline_TCASE() {
+ case $foo in
+ (1)
+ echo eins >&3
+ ;&
+ (2)
+ echo zwei >&3
+ ;|
+ (*)
+ echo kann net bis drei zählen >&3
+ ;;
+ esac >&3
+ }
+ function comsub_TCASE { x=$(
+ case $foo in 1) echo eins >&3;& 2) echo zwei >&3 ;| *) echo kann net bis drei zählen >&3;; esac >&3
+ ); }
+ function comsub_TCASE {
+ x=$(case $foo in (1) echo eins >&3 ;& (2) echo zwei >&3 ;| (*) echo kann net bis drei zählen >&3 ;; esac >&3 )
+ }
+ function reread_TCASE { x=$((
+ case $foo in 1) echo eins >&3;& 2) echo zwei >&3 ;| *) echo kann net bis drei zählen >&3;; esac >&3
+ )|tr u x); }
+ function reread_TCASE {
+ x=$(( case $foo in (1) echo eins >&3 ;& (2) echo zwei >&3 ;| (*) echo kann net bis drei zählen >&3 ;; esac >&3 ) | tr u x )
+ }
+ inline_TIF_TBANG_TDBRACKET_TELIF() {
+ if ! [[ 1 = 1 ]] >&3 ; then echo eins; elif [[ 1 = 2 ]] >&3; then echo zwei ;else echo drei; fi >&3
+ }
+ inline_TIF_TBANG_TDBRACKET_TELIF() {
+ if ! [[ 1 = 1 ]] >&3
+ then
+ echo eins
+ elif [[ 1 = 2 ]] >&3
+ then
+ echo zwei
+ else
+ echo drei
+ fi >&3
+ }
+ function comsub_TIF_TBANG_TDBRACKET_TELIF { x=$(
+ if ! [[ 1 = 1 ]] >&3 ; then echo eins; elif [[ 1 = 2 ]] >&3; then echo zwei ;else echo drei; fi >&3
+ ); }
+ function comsub_TIF_TBANG_TDBRACKET_TELIF {
+ x=$(if ! [[ 1 = 1 ]] >&3 ; then echo eins ; elif [[ 1 = 2 ]] >&3 ; then echo zwei ; else echo drei ; fi >&3 )
+ }
+ function reread_TIF_TBANG_TDBRACKET_TELIF { x=$((
+ if ! [[ 1 = 1 ]] >&3 ; then echo eins; elif [[ 1 = 2 ]] >&3; then echo zwei ;else echo drei; fi >&3
+ )|tr u x); }
+ function reread_TIF_TBANG_TDBRACKET_TELIF {
+ x=$(( if ! [[ 1 = 1 ]] >&3 ; then echo eins ; elif [[ 1 = 2 ]] >&3 ; then echo zwei ; else echo drei ; fi >&3 ) | tr u x )
+ }
+ inline_TWHILE() {
+ i=1; while (( i < 10 )) >&3; do echo $i; let ++i; done >&3
+ }
+ inline_TWHILE() {
+ i=1
+ while let] " i < 10 " >&3
+ do
+ echo $i
+ let ++i
+ done >&3
+ }
+ function comsub_TWHILE { x=$(
+ i=1; while (( i < 10 )) >&3; do echo $i; let ++i; done >&3
+ ); }
+ function comsub_TWHILE {
+ x=$(i=1 ; while let] " i < 10 " >&3 ; do echo $i ; let ++i ; done >&3 )
+ }
+ function reread_TWHILE { x=$((
+ i=1; while (( i < 10 )) >&3; do echo $i; let ++i; done >&3
+ )|tr u x); }
+ function reread_TWHILE {
+ x=$(( i=1 ; while let] " i < 10 " >&3 ; do echo $i ; let ++i ; done >&3 ) | tr u x )
+ }
+ inline_TUNTIL() {
+ i=10; until (( !--i )) >&3 ; do echo $i; done >&3
+ }
+ inline_TUNTIL() {
+ i=10
+ until let] " !--i " >&3
+ do
+ echo $i
+ done >&3
+ }
+ function comsub_TUNTIL { x=$(
+ i=10; until (( !--i )) >&3 ; do echo $i; done >&3
+ ); }
+ function comsub_TUNTIL {
+ x=$(i=10 ; until let] " !--i " >&3 ; do echo $i ; done >&3 )
+ }
+ function reread_TUNTIL { x=$((
+ i=10; until (( !--i )) >&3 ; do echo $i; done >&3
+ )|tr u x); }
+ function reread_TUNTIL {
+ x=$(( i=10 ; until let] " !--i " >&3 ; do echo $i ; done >&3 ) | tr u x )
+ }
+ inline_TCOPROC() {
+ cat * >&3 |& >&3 ls
+ }
+ inline_TCOPROC() {
+ cat * >&3 |&
+ ls >&3
+ }
+ function comsub_TCOPROC { x=$(
+ cat * >&3 |& >&3 ls
+ ); }
+ function comsub_TCOPROC {
+ x=$(cat * >&3 |& ls >&3 )
+ }
+ function reread_TCOPROC { x=$((
+ cat * >&3 |& >&3 ls
+ )|tr u x); }
+ function reread_TCOPROC {
+ x=$(( cat * >&3 |& ls >&3 ) | tr u x )
+ }
+ inline_TFUNCT_TBRACE_TASYNC() {
+ function korn { echo eins; echo >&3 zwei ; }
+ bourne () { logger * >&3 & }
+ }
+ inline_TFUNCT_TBRACE_TASYNC() {
+ function korn {
+ echo eins
+ echo zwei >&3
+ }
+ bourne() {
+ logger * >&3 &
+ }
+ }
+ function comsub_TFUNCT_TBRACE_TASYNC { x=$(
+ function korn { echo eins; echo >&3 zwei ; }
+ bourne () { logger * >&3 & }
+ ); }
+ function comsub_TFUNCT_TBRACE_TASYNC {
+ x=$(function korn { echo eins ; echo zwei >&3 ; } ; bourne() { logger * >&3 & } )
+ }
+ function reread_TFUNCT_TBRACE_TASYNC { x=$((
+ function korn { echo eins; echo >&3 zwei ; }
+ bourne () { logger * >&3 & }
+ )|tr u x); }
+ function reread_TFUNCT_TBRACE_TASYNC {
+ x=$(( function korn { echo eins ; echo zwei >&3 ; } ; bourne() { logger * >&3 & } ) | tr u x )
+ }
+ inline_COMSUB_EXPRSUB() {
+ echo $(true >&3) $((1+ 2))
+ }
+ inline_COMSUB_EXPRSUB() {
+ echo $(true >&3 ) $((1+ 2))
+ }
+ function comsub_COMSUB_EXPRSUB { x=$(
+ echo $(true >&3) $((1+ 2))
+ ); }
+ function comsub_COMSUB_EXPRSUB {
+ x=$(echo $(true >&3 ) $((1+ 2)) )
+ }
+ function reread_COMSUB_EXPRSUB { x=$((
+ echo $(true >&3) $((1+ 2))
+ )|tr u x); }
+ function reread_COMSUB_EXPRSUB {
+ x=$(( echo $(true >&3 ) $((1+ 2)) ) | tr u x )
+ }
+---
+name: funsub-1
+description:
+ Check that non-subenvironment command substitution works
+stdin:
+ set -e
+ foo=bar
+ echo "ob $foo ."
+ echo "${
+ echo "ib $foo :"
+ foo=baz
+ echo "ia $foo :"
+ false
+ }" .
+ echo "oa $foo ."
+expected-stdout:
+ ob bar .
+ ib bar :
+ ia baz : .
+ oa baz .
+---
+name: funsub-2
+description:
+ You can now reliably use local and return in funsubs
+ (not exit though)
+stdin:
+ x=q; e=1; x=${ echo a; e=2; echo x$e;}; echo 1:y$x,$e,$?.
+ x=q; e=1; x=${ echo a; typeset e=2; echo x$e;}; echo 2:y$x,$e,$?.
+ x=q; e=1; x=${ echo a; typeset e=2; return 3; echo x$e;}; echo 3:y$x,$e,$?.
+expected-stdout:
+ 1:ya x2,2,0.
+ 2:ya x2,1,0.
+ 3:ya,1,3.
+---
+name: valsub-1
+description:
+ Check that "value substitutions" work as advertised
+stdin:
+ x=1
+ y=2
+ z=3
+ REPLY=4
+ echo "before: x<$x> y<$y> z<$z> R<$REPLY>"
+ x=${|
+ local y
+ echo "begin: x<$x> y<$y> z<$z> R<$REPLY>"
+ x=5
+ y=6
+ z=7
+ REPLY=8
+ echo "end: x<$x> y<$y> z<$z> R<$REPLY>"
+ }
+ echo "after: x<$x> y<$y> z<$z> R<$REPLY>"
+ # ensure trailing newlines are kept
+ t=${|REPLY=$'foo\n\n';}
+ typeset -p t
+ echo -n this used to segfault
+ echo ${|true;}$(true).
+expected-stdout:
+ before: x<1> y<2> z<3> R<4>
+ begin: x<1> y<> z<3> R<>
+ end: x<5> y<6> z<7> R<8>
+ after: x<8> y<2> z<7> R<4>
+ typeset t=$'foo\n\n'
+ this used to segfault.
+---
+name: test-stnze-1
+description:
+ Check that the short form [ $x ] works
+stdin:
+ i=0
+ [ -n $x ]
+ rv=$?; echo $((++i)) $rv
+ [ $x ]
+ rv=$?; echo $((++i)) $rv
+ [ -n "$x" ]
+ rv=$?; echo $((++i)) $rv
+ [ "$x" ]
+ rv=$?; echo $((++i)) $rv
+ x=0
+ [ -n $x ]
+ rv=$?; echo $((++i)) $rv
+ [ $x ]
+ rv=$?; echo $((++i)) $rv
+ [ -n "$x" ]
+ rv=$?; echo $((++i)) $rv
+ [ "$x" ]
+ rv=$?; echo $((++i)) $rv
+ x='1 -a 1 = 2'
+ [ -n $x ]
+ rv=$?; echo $((++i)) $rv
+ [ $x ]
+ rv=$?; echo $((++i)) $rv
+ [ -n "$x" ]
+ rv=$?; echo $((++i)) $rv
+ [ "$x" ]
+ rv=$?; echo $((++i)) $rv
+expected-stdout:
+ 1 0
+ 2 1
+ 3 1
+ 4 1
+ 5 0
+ 6 0
+ 7 0
+ 8 0
+ 9 1
+ 10 1
+ 11 0
+ 12 0
+---
+name: test-stnze-2
+description:
+ Check that the short form [[ $x ]] works (ksh93 extension)
+stdin:
+ i=0
+ [[ -n $x ]]
+ rv=$?; echo $((++i)) $rv
+ [[ $x ]]
+ rv=$?; echo $((++i)) $rv
+ [[ -n "$x" ]]
+ rv=$?; echo $((++i)) $rv
+ [[ "$x" ]]
+ rv=$?; echo $((++i)) $rv
+ x=0
+ [[ -n $x ]]
+ rv=$?; echo $((++i)) $rv
+ [[ $x ]]
+ rv=$?; echo $((++i)) $rv
+ [[ -n "$x" ]]
+ rv=$?; echo $((++i)) $rv
+ [[ "$x" ]]
+ rv=$?; echo $((++i)) $rv
+ x='1 -a 1 = 2'
+ [[ -n $x ]]
+ rv=$?; echo $((++i)) $rv
+ [[ $x ]]
+ rv=$?; echo $((++i)) $rv
+ [[ -n "$x" ]]
+ rv=$?; echo $((++i)) $rv
+ [[ "$x" ]]
+ rv=$?; echo $((++i)) $rv
+expected-stdout:
+ 1 1
+ 2 1
+ 3 1
+ 4 1
+ 5 0
+ 6 0
+ 7 0
+ 8 0
+ 9 0
+ 10 0
+ 11 0
+ 12 0
+---
+name: event-subst-3
+description:
+ Check that '!' substitution in noninteractive mode is ignored
+file-setup: file 755 "falsetto"
+ #! /bin/sh
+ echo molto bene
+ exit 42
+file-setup: file 755 "!false"
+ #! /bin/sh
+ echo si
+stdin:
+ export PATH=.:$PATH
+ falsetto
+ echo yeap
+ !false
+ echo meow
+ ! false
+ echo = $?
+ if
+ ! false; then echo foo; else echo bar; fi
+expected-stdout:
+ molto bene
+ yeap
+ si
+ meow
+ = 0
+ foo
+---
+name: event-subst-0
+description:
+ Check that '!' substitution in interactive mode is ignored
+need-ctty: yes
+arguments: !-i!
+file-setup: file 755 "falsetto"
+ #! /bin/sh
+ echo molto bene
+ exit 42
+file-setup: file 755 "!false"
+ #! /bin/sh
+ echo si
+stdin:
+ export PATH=.:$PATH
+ falsetto
+ echo yeap
+ !false
+ echo meow
+ ! false
+ echo = $?
+ if
+ ! false; then echo foo; else echo bar; fi
+expected-stdout:
+ molto bene
+ yeap
+ si
+ meow
+ = 0
+ foo
+expected-stderr-pattern:
+ /.*/
+---
+name: nounset-1
+description:
+ Check that "set -u" matches (future) SUSv4 requirement
+stdin:
+ (set -u
+ try() {
+ local v
+ eval v=\$$1
+ if [[ -n $v ]]; then
+ echo $1=nz
+ else
+ echo $1=zf
+ fi
+ }
+ x=y
+ (echo $x)
+ echo =1
+ (echo $y)
+ echo =2
+ (try x)
+ echo =3
+ (try y)
+ echo =4
+ (try 0)
+ echo =5
+ (try 2)
+ echo =6
+ (try)
+ echo =7
+ (echo at=$@)
+ echo =8
+ (echo asterisk=$*)
+ echo =9
+ (echo $?)
+ echo =10
+ (echo $!)
+ echo =11
+ (echo $-)
+ echo =12
+ #(echo $_)
+ #echo =13
+ (echo $#)
+ echo =14
+ (mypid=$$; try mypid)
+ echo =15
+ ) 2>&1 | sed -e 's/^[^]]*]//' -e 's/^[^:]*: *//'
+expected-stdout:
+ y
+ =1
+ y: parameter not set
+ =2
+ x=nz
+ =3
+ y: parameter not set
+ =4
+ 0=nz
+ =5
+ 2: parameter not set
+ =6
+ 1: parameter not set
+ =7
+ at=
+ =8
+ asterisk=
+ =9
+ 0
+ =10
+ !: parameter not set
+ =11
+ ush
+ =12
+ 0
+ =14
+ mypid=nz
+ =15
+---
+name: nameref-1
+description:
+ Testsuite for nameref (bound variables)
+stdin:
+ bar=global
+ typeset -n ir2=bar
+ typeset -n ind=ir2
+ echo !ind: ${!ind}
+ echo ind: $ind
+ echo !ir2: ${!ir2}
+ echo ir2: $ir2
+ typeset +n ind
+ echo !ind: ${!ind}
+ echo ind: $ind
+ typeset -n ir2=ind
+ echo !ir2: ${!ir2}
+ echo ir2: $ir2
+ set|grep ^ir2|sed 's/^/s1: /'
+ typeset|grep ' ir2'|sed -e 's/^/s2: /' -e 's/nameref/typeset -n/'
+ set -A blub -- e1 e2 e3
+ typeset -n ind=blub
+ typeset -n ir2=blub[2]
+ echo !ind[1]: ${!ind[1]}
+ echo !ir2: $!ir2
+ echo ind[1]: ${ind[1]}
+ echo ir2: $ir2
+expected-stdout:
+ !ind: bar
+ ind: global
+ !ir2: bar
+ ir2: global
+ !ind: ind
+ ind: ir2
+ !ir2: ind
+ ir2: ir2
+ s1: ir2=ind
+ s2: typeset -n ir2
+ !ind[1]: blub[1]
+ !ir2: ir2
+ ind[1]: e2
+ ir2: e3
+---
+name: nameref-2da
+description:
+ Testsuite for nameref (bound variables)
+ Functions, argument given directly, after local
+stdin:
+ function foo {
+ typeset bar=lokal baz=auch
+ typeset -n v=bar
+ echo entering
+ echo !v: ${!v}
+ echo !bar: ${!bar}
+ echo !baz: ${!baz}
+ echo bar: $bar
+ echo v: $v
+ v=123
+ echo bar: $bar
+ echo v: $v
+ echo exiting
+ }
+ bar=global
+ echo bar: $bar
+ foo bar
+ echo bar: $bar
+expected-stdout:
+ bar: global
+ entering
+ !v: bar
+ !bar: bar
+ !baz: baz
+ bar: lokal
+ v: lokal
+ bar: 123
+ v: 123
+ exiting
+ bar: global
+---
+name: nameref-3
+description:
+ Advanced testsuite for bound variables (ksh93 fails this)
+stdin:
+ typeset -n foo=bar[i]
+ set -A bar -- b c a
+ for i in 0 1 2 3; do
+ print $i $foo .
+ done
+expected-stdout:
+ 0 b .
+ 1 c .
+ 2 a .
+ 3 .
+---
+name: nameref-4
+description:
+ Ensure we don't run in an infinite loop
+time-limit: 3
+stdin:
+ baz() {
+ typeset -n foo=fnord fnord=foo
+ foo[0]=bar
+ }
+ set -A foo bad
+ echo sind $foo .
+ baz
+ echo blah $foo .
+expected-stdout:
+ sind bad .
+ blah bad .
+expected-stderr-pattern:
+ /fnord: expression recurses on parameter/
+---
+name: better-parens-1a
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ if ( (echo fubar)|tr u x); then
+ echo ja
+ else
+ echo nein
+ fi
+expected-stdout:
+ fxbar
+ ja
+---
+name: better-parens-1b
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ echo $( (echo fubar)|tr u x) $?
+expected-stdout:
+ fxbar 0
+---
+name: better-parens-1c
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ x=$( (echo fubar)|tr u x); echo $x $?
+expected-stdout:
+ fxbar 0
+---
+name: better-parens-2a
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ if ((echo fubar)|tr u x); then
+ echo ja
+ else
+ echo nein
+ fi
+expected-stdout:
+ fxbar
+ ja
+---
+name: better-parens-2b
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ echo $((echo fubar)|tr u x) $?
+expected-stdout:
+ fxbar 0
+---
+name: better-parens-2c
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ x=$((echo fubar)|tr u x); echo $x $?
+expected-stdout:
+ fxbar 0
+---
+name: better-parens-3a
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ if ( (echo fubar)|(tr u x)); then
+ echo ja
+ else
+ echo nein
+ fi
+expected-stdout:
+ fxbar
+ ja
+---
+name: better-parens-3b
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ echo $( (echo fubar)|(tr u x)) $?
+expected-stdout:
+ fxbar 0
+---
+name: better-parens-3c
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ x=$( (echo fubar)|(tr u x)); echo $x $?
+expected-stdout:
+ fxbar 0
+---
+name: better-parens-4a
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ if ((echo fubar)|(tr u x)); then
+ echo ja
+ else
+ echo nein
+ fi
+expected-stdout:
+ fxbar
+ ja
+---
+name: better-parens-4b
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ echo $((echo fubar)|(tr u x)) $?
+expected-stdout:
+ fxbar 0
+---
+name: better-parens-4c
+description:
+ Check support for ((…)) and $((…)) vs (…) and $(…)
+stdin:
+ x=$((echo fubar)|(tr u x)); echo $x $?
+expected-stdout:
+ fxbar 0
+---
+name: echo-test-1
+description:
+ Test what the echo builtin does (mksh)
+stdin:
+ echo -n 'foo\x40bar'
+ echo -e '\tbaz'
+expected-stdout:
+ foo at bar baz
+---
+name: echo-test-2
+description:
+ Test what the echo builtin does (POSIX)
+ Note: this follows Debian Policy 10.4 which mandates
+ that -n shall be treated as an option, not XSI which
+ mandates it shall be treated as string but escapes
+ shall be expanded.
+stdin:
+ test -n "$POSH_VERSION" || set -o posix
+ echo -n 'foo\x40bar'
+ echo -e '\tbaz'
+expected-stdout:
+ foo\x40bar-e \tbaz
+---
+name: echo-test-3-mnbsd
+description:
+ Test what the echo builtin does, and test a compatibility flag.
+category: mnbsdash
+stdin:
+ "$__progname" -c 'echo -n 1=\\x40$1; echo -e \\x2E' -- foo bar
+ "$__progname" -o posix -c 'echo -n 2=\\x40$1; echo -e \\x2E' -- foo bar
+ "$__progname" -o sh -c 'echo -n 3=\\x40$1; echo -e \\x2E' -- foo bar
+expected-stdout:
+ 1=@foo.
+ 2=\x40foo-e \x2E
+ 3=\x40bar.
+---
+name: echo-test-3-normal
+description:
+ Test what the echo builtin does, and test a compatibility flag.
+category: !mnbsdash
+stdin:
+ "$__progname" -c 'echo -n 1=\\x40$1; echo -e \\x2E' -- foo bar
+ "$__progname" -o posix -c 'echo -n 2=\\x40$1; echo -e \\x2E' -- foo bar
+ "$__progname" -o sh -c 'echo -n 3=\\x40$1; echo -e \\x2E' -- foo bar
+expected-stdout:
+ 1=@foo.
+ 2=\x40foo-e \x2E
+ 3=\x40foo-e \x2E
+---
+name: utilities-getopts-1
+description:
+ getopts sets OPTIND correctly for unparsed option
+stdin:
+ set -- -a -a -x
+ while getopts :a optc; do
+ echo "OPTARG=$OPTARG, OPTIND=$OPTIND, optc=$optc."
+ done
+ echo done
+expected-stdout:
+ OPTARG=, OPTIND=2, optc=a.
+ OPTARG=, OPTIND=3, optc=a.
+ OPTARG=x, OPTIND=4, optc=?.
+ done
+---
+name: utilities-getopts-2
+description:
+ Check OPTARG
+stdin:
+ set -- -a Mary -x
+ while getopts a: optc; do
+ echo "OPTARG=$OPTARG, OPTIND=$OPTIND, optc=$optc."
+ done
+ echo done
+expected-stdout:
+ OPTARG=Mary, OPTIND=3, optc=a.
+ OPTARG=, OPTIND=4, optc=?.
+ done
+expected-stderr-pattern: /.*-x.*option/
+---
+name: wcswidth-1
+description:
+ Check the new wcswidth feature
+stdin:
+ s=何
+ set +U
+ print octets: ${#s} .
+ print 8-bit width: ${%s} .
+ set -U
+ print characters: ${#s} .
+ print columns: ${%s} .
+ s=�
+ set +U
+ print octets: ${#s} .
+ print 8-bit width: ${%s} .
+ set -U
+ print characters: ${#s} .
+ print columns: ${%s} .
+expected-stdout:
+ octets: 3 .
+ 8-bit width: -1 .
+ characters: 1 .
+ columns: 2 .
+ octets: 3 .
+ 8-bit width: 3 .
+ characters: 1 .
+ columns: 1 .
+---
+name: wcswidth-2
+description:
+ Check some corner cases
+stdin:
+ print % $% .
+ set -U
+ x='a b'
+ print c ${%x} .
+ set +U
+ x='a b'
+ print d ${%x} .
+expected-stdout:
+ % $% .
+ c -1 .
+ d -1 .
+---
+name: wcswidth-3
+description:
+ Check some corner cases
+stdin:
+ print ${%} .
+expected-stderr-pattern:
+ /bad substitution/
+expected-exit: 1
+---
+name: wcswidth-4a
+description:
+ Check some corner cases
+stdin:
+ print ${%*} .
+expected-stderr-pattern:
+ /bad substitution/
+expected-exit: 1
+---
+name: wcswidth-4b
+description:
+ Check some corner cases
+stdin:
+ print ${%@} .
+expected-stderr-pattern:
+ /bad substitution/
+expected-exit: 1
+---
+name: wcswidth-4c
+description:
+ Check some corner cases
+stdin:
+ :
+ print ${%?} .
+expected-stdout:
+ 1 .
+---
+name: realpath-1
+description:
+ Check proper return values for realpath
+category: os:mirbsd
+stdin:
+ wd=$(realpath .)
+ mkdir dir
+ :>file
+ :>dir/file
+ ln -s dir lndir
+ ln -s file lnfile
+ ln -s nix lnnix
+ ln -s . lnself
+ i=0
+ chk() {
+ typeset x y
+ x=$(realpath "$wd/$1" 2>&1); y=$?
+ print $((++i)) "?$1" =${x##*$wd/} !$y
+ }
+ chk dir
+ chk dir/
+ chk dir/file
+ chk dir/nix
+ chk file
+ chk file/
+ chk file/file
+ chk file/nix
+ chk nix
+ chk nix/
+ chk nix/file
+ chk nix/nix
+ chk lndir
+ chk lndir/
+ chk lndir/file
+ chk lndir/nix
+ chk lnfile
+ chk lnfile/
+ chk lnfile/file
+ chk lnfile/nix
+ chk lnnix
+ chk lnnix/
+ chk lnnix/file
+ chk lnnix/nix
+ chk lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself
+ rm lnself
+expected-stdout:
+ 1 ?dir =dir !0
+ 2 ?dir/ =dir !0
+ 3 ?dir/file =dir/file !0
+ 4 ?dir/nix =dir/nix !0
+ 5 ?file =file !0
+ 6 ?file/ =file/: Not a directory !20
+ 7 ?file/file =file/file: Not a directory !20
+ 8 ?file/nix =file/nix: Not a directory !20
+ 9 ?nix =nix !0
+ 10 ?nix/ =nix !0
+ 11 ?nix/file =nix/file: No such file or directory !2
+ 12 ?nix/nix =nix/nix: No such file or directory !2
+ 13 ?lndir =dir !0
+ 14 ?lndir/ =dir !0
+ 15 ?lndir/file =dir/file !0
+ 16 ?lndir/nix =dir/nix !0
+ 17 ?lnfile =file !0
+ 18 ?lnfile/ =lnfile/: Not a directory !20
+ 19 ?lnfile/file =lnfile/file: Not a directory !20
+ 20 ?lnfile/nix =lnfile/nix: Not a directory !20
+ 21 ?lnnix =nix !0
+ 22 ?lnnix/ =nix !0
+ 23 ?lnnix/file =lnnix/file: No such file or directory !2
+ 24 ?lnnix/nix =lnnix/nix: No such file or directory !2
+ 25 ?lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself =lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself/lnself: Too many levels of symbolic links !62
+---
+name: realpath-2
+description:
+ Ensure that exactly two leading slashes are not collapsed
+ POSIX guarantees this exception, e.g. for UNC paths on Cygwin
+category: os:mirbsd
+stdin:
+ ln -s /bin t1
+ ln -s //bin t2
+ ln -s ///bin t3
+ realpath /bin
+ realpath //bin
+ realpath ///bin
+ realpath /usr/bin
+ realpath /usr//bin
+ realpath /usr///bin
+ realpath t1
+ realpath t2
+ realpath t3
+ rm -f t1 t2 t3
+ cd //usr/bin
+ pwd
+ cd ../lib
+ pwd
+ realpath //usr/include/../bin
+expected-stdout:
+ /bin
+ //bin
+ /bin
+ /usr/bin
+ /usr/bin
+ /usr/bin
+ /bin
+ //bin
+ /bin
+ //usr/bin
+ //usr/lib
+ //usr/bin
+---
+name: crash-1
+description:
+ Crashed during March 2011, fixed on vernal equinōx ☺
+category: os:mirbsd,os:openbsd
+stdin:
+ export MALLOC_OPTIONS=FGJPRSX
+ "$__progname" -c 'x=$(tr z r <<<baz); echo $x'
+expected-stdout:
+ bar
+---
+name: debian-117-1
+description:
+ Check test - bug#465250
+stdin:
+ test \( ! -e \) ; echo $?
+expected-stdout:
+ 1
+---
+name: debian-117-2
+description:
+ Check test - bug#465250
+stdin:
+ test \( -e \) ; echo $?
+expected-stdout:
+ 0
+---
+name: debian-117-3
+description:
+ Check test - bug#465250
+stdin:
+ test ! -e ; echo $?
+expected-stdout:
+ 1
+---
+name: debian-117-4
+description:
+ Check test - bug#465250
+stdin:
+ test -e ; echo $?
+expected-stdout:
+ 0
+---
+name: case-zsh
+description:
+ Check that zsh case variants work
+stdin:
+ case 'b' in
+ a) echo a ;;
+ b) echo b ;;
+ c) echo c ;;
+ *) echo x ;;
+ esac
+ echo =
+ case 'b' in
+ a) echo a ;&
+ b) echo b ;&
+ c) echo c ;&
+ *) echo x ;&
+ esac
+ echo =
+ case 'b' in
+ a) echo a ;|
+ b) echo b ;|
+ c) echo c ;|
+ *) echo x ;|
+ esac
+expected-stdout:
+ b
+ =
+ b
+ c
+ x
+ =
+ b
+ x
+---
+name: case-braces
+description:
+ Check that case end tokens are not mixed up (Debian #220272)
+stdin:
+ i=0
+ for value in 'x' '}' 'esac'; do
+ print -n "$((++i))($value)bourne "
+ case $value in
+ }) echo brace ;;
+ *) echo no ;;
+ esac
+ print -n "$((++i))($value)korn "
+ case $value {
+ esac) echo esac ;;
+ *) echo no ;;
+ }
+ done
+expected-stdout:
+ 1(x)bourne no
+ 2(x)korn no
+ 3(})bourne brace
+ 4(})korn no
+ 5(esac)bourne no
+ 6(esac)korn esac
+---
+name: command-shift
+description:
+ Check that 'command shift' works
+stdin:
+ function snc {
+ echo "before 0='$0' 1='$1' 2='$2'"
+ shift
+ echo "after 0='$0' 1='$1' 2='$2'"
+ }
+ function swc {
+ echo "before 0='$0' 1='$1' 2='$2'"
+ command shift
+ echo "after 0='$0' 1='$1' 2='$2'"
+ }
+ echo = without command
+ snc 一 二
+ echo = with command
+ swc 一 二
+ echo = done
+expected-stdout:
+ = without command
+ before 0='snc' 1='一' 2='二'
+ after 0='snc' 1='二' 2=''
+ = with command
+ before 0='swc' 1='一' 2='二'
+ after 0='swc' 1='二' 2=''
+ = done
+---
+name: duffs-device
+description:
+ Check that the compiler did not optimise-break them
+ (lex.c has got a similar one in SHEREDELIM)
+stdin:
+ set +U
+ s=
+ typeset -i1 i=0
+ while (( ++i < 256 )); do
+ s+=${i#1#}
+ done
+ s+=$'\xC2\xA0\xE2\x82\xAC\xEF\xBF\xBD\xEF\xBF\xBE\xEF\xBF\xBF\xF0\x90\x80\x80.'
+ typeset -p s
+expected-stdout:
+ typeset s=$'\001\002\003\004\005\006\a\b\t\n\v\f\r\016\017\020\021\022\023\024\025\026\027\030\031\032\E\034\035\036\037 !"#$%&\047()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377\u00A0\u20AC\uFFFD\357\277\276\357\277\277\360\220\200\200.'
+---
+name: stateptr-underflow
+description:
+ This check overflows an Xrestpos stored in a short in R40
+category: fastbox
+stdin:
+ function Lb64decode {
+ [[ -o utf8-mode ]]; local u=$?
+ set +U
+ local c s="$*" t=
+ [[ -n $s ]] || { s=$(cat;print x); s=${s%x}; }
+ local -i i=0 n=${#s} p=0 v x
+ local -i16 o
+
+ while (( i < n )); do
+ c=${s:(i++):1}
+ case $c {
+ (=) break ;;
+ ([A-Z]) (( v = 1#$c - 65 )) ;;
+ ([a-z]) (( v = 1#$c - 71 )) ;;
+ ([0-9]) (( v = 1#$c + 4 )) ;;
+ (+) v=62 ;;
+ (/) v=63 ;;
+ (*) continue ;;
+ }
+ (( x = (x << 6) | v ))
+ case $((p++)) {
+ (0) continue ;;
+ (1) (( o = (x >> 4) & 255 )) ;;
+ (2) (( o = (x >> 2) & 255 )) ;;
+ (3) (( o = x & 255 ))
+ p=0
+ ;;
+ }
+ t=$t\\x${o#16#}
+ done
+ print -n $t
+ (( u )) || set -U
+ }
+
+ i=-1
+ s=
+ while (( ++i < 12120 )); do
+ s+=a
+ done
+ Lb64decode $s >/dev/null
+---
+name: xtrace-1
+description:
+ Check that "set -x" doesn't redirect too quickly
+stdin:
+ print '#!'"$__progname" >bash
+ cat >>bash <<'EOF'
+ echo 'GNU bash, version 2.05b.0(1)-release (i386-ecce-mirbsd10)
+ Copyright (C) 2002 Free Software Foundation, Inc.'
+ EOF
+ chmod +x bash
+ "$__progname" -xc 'foo=$(./bash --version 2>&1 | head -1); echo "=$foo="'
+expected-stdout:
+ =GNU bash, version 2.05b.0(1)-release (i386-ecce-mirbsd10)=
+expected-stderr-pattern:
+ /.*/
+---
Deleted: vendor/MirOS/mksh/R50/dot.mkshrc
===================================================================
--- vendor/MirOS/mksh/dist/dot.mkshrc 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/dot.mkshrc 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,416 +0,0 @@
-# $Id: dot.mkshrc,v 1.1.1.19 2013-08-14 22:11:50 laffer1 Exp $
-# $MirOS: src/bin/mksh/dot.mkshrc,v 1.84 2013/08/10 13:43:50 tg Exp $
-#-
-# Copyright (c) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010,
-# 2011, 2012, 2013
-# Thorsten Glaser <tg at mirbsd.org>
-#
-# Provided that these terms and disclaimer and all copyright notices
-# are retained or reproduced in an accompanying document, permission
-# is granted to deal in this work without restriction, including un-
-# limited rights to use, publicly perform, distribute, sell, modify,
-# merge, give away, or sublicence.
-#
-# This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
-# the utmost extent permitted by applicable law, neither express nor
-# implied; without malicious intent or gross negligence. In no event
-# may a licensor, author or contributor be held liable for indirect,
-# direct, other damage, loss, or other issues arising in any way out
-# of dealing in the work, even if advised of the possibility of such
-# damage or existence of a defect, except proven that it results out
-# of said person's immediate fault when using the work as intended.
-#-
-# ${ENV:-~/.mkshrc}: mksh initialisation file for interactive shells
-
-# catch non-mksh (including lksh) trying to shell this file
-case $KSH_VERSION in
-*MIRBSD\ KSH*) ;;
-*) return 0 ;;
-esac
-
-PS1='#'; (( USER_ID )) && PS1='$'; [[ ${HOSTNAME:=$(ulimit -c 0; hostname -s \
- 2>/dev/null)} = *([ ]|localhost) ]] && HOSTNAME=$(ulimit -c 0; hostname \
- 2>/dev/null); : ${EDITOR:=/bin/ed} ${HOSTNAME:=nil} ${TERM:=vt100}
-: ${MKSH:=$(whence -p mksh)}; PS4='[$EPOCHREALTIME] '; PS1=$'\001\r''${|
- local e=$?
-
- (( e )) && REPLY+="$e|"
- REPLY+=${USER:=$(ulimit -c 0; id -un 2>/dev/null || echo \?)}
- REPLY+=@${HOSTNAME%%.*}:
-
- local d=${PWD:-?} p=~; [[ $p = ?(*/) ]] || d=${d/#$p/~}
- local m=${%d} n p=...; (( m > 0 )) || m=${#d}
- (( m > (n = (COLUMNS/3 < 7 ? 7 : COLUMNS/3)) )) && d=${d:(-n)} || p=
- REPLY+=$p$d
-
- return $e
-} '"$PS1 "; export EDITOR HOSTNAME MKSH TERM USER
-alias ls=ls
-unalias ls
-alias l='ls -F'
-alias la='l -a'
-alias ll='l -l'
-alias lo='l -alo'
-alias doch='sudo mksh -c "$(fc -ln -1)"'
-whence -p rot13 >/dev/null || alias rot13='tr \
- abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ \
- nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
-if whence -p hd >/dev/null; then :; elif whence -p hexdump >/dev/null; then
- function hd {
- hexdump -e '"%08.8_ax " 8/1 "%02X " " - " 8/1 "%02X "' \
- -e '" |" "%_p"' -e '"|\n"' "$@"
- }
-else
- function hd {
- local -Uui16 -Z11 pos=0
- local -Uui16 -Z5 hv=2147483647
- local dasc line i
-
- cat "$@" | { set +U; if read -arN -1 line; then
- typeset -i1 line
- i=0
- while (( i < ${#line[*]} )); do
- hv=${line[i++]}
- if (( (pos & 15) == 0 )); then
- (( pos )) && print -r -- "$dasc|"
- print -n "${pos#16#} "
- dasc=' |'
- fi
- print -n "${hv#16#} "
- if (( (hv < 32) || (hv > 126) )); then
- dasc+=.
- else
- dasc+=${line[i-1]#1#}
- fi
- (( (pos++ & 15) == 7 )) && print -n -- '- '
- done
- while (( pos & 15 )); do
- print -n ' '
- (( (pos++ & 15) == 7 )) && print -n -- '- '
- done
- (( hv == 2147483647 )) || print -r -- "$dasc|"
- fi; }
- }
-fi
-
-# Berkeley C shell compatible dirs, popd, and pushd functions
-# Z shell compatible chpwd() hook, used to update DIRSTACK[0]
-DIRSTACKBASE=$(realpath ~/. 2>/dev/null || print -nr -- "${HOME:-/}")
-set -A DIRSTACK
-function chpwd {
- DIRSTACK[0]=$(realpath . 2>/dev/null || print -r -- "$PWD")
- [[ $DIRSTACKBASE = ?(*/) ]] || \
- DIRSTACK[0]=${DIRSTACK[0]/#$DIRSTACKBASE/~}
- :
-}
-chpwd .
-function cd {
- builtin cd "$@"
- chpwd "$@"
-}
-function cd_csh {
- local d t=${1/#~/$DIRSTACKBASE}
-
- if ! d=$(builtin cd "$t" 2>&1); then
- print -u2 "${1}: ${d##*$t - }."
- return 1
- fi
- cd "$t"
-}
-function dirs {
- local d dwidth
- local -i fl=0 fv=0 fn=0 cpos=0
-
- while getopts ":lvn" d; do
- case $d {
- (l) fl=1 ;;
- (v) fv=1 ;;
- (n) fn=1 ;;
- (*) print -u2 'Usage: dirs [-lvn].'
- return 1 ;;
- }
- done
- shift $((OPTIND - 1))
- if (( $# > 0 )); then
- print -u2 'Usage: dirs [-lvn].'
- return 1
- fi
- if (( fv )); then
- fv=0
- while (( fv < ${#DIRSTACK[*]} )); do
- d=${DIRSTACK[fv]}
- (( fl )) && d=${d/#~/$DIRSTACKBASE}
- print -r -- "$fv $d"
- let fv++
- done
- else
- fv=0
- while (( fv < ${#DIRSTACK[*]} )); do
- d=${DIRSTACK[fv]}
- (( fl )) && d=${d/#~/$DIRSTACKBASE}
- (( dwidth = (${%d} > 0 ? ${%d} : ${#d}) ))
- if (( fn && (cpos += dwidth + 1) >= 79 && \
- dwidth < 80 )); then
- print
- (( cpos = dwidth + 1 ))
- fi
- print -nr -- "$d "
- let fv++
- done
- print
- fi
- return 0
-}
-function popd {
- local d fa
- local -i n=1
-
- while getopts ":0123456789lvn" d; do
- case $d {
- (l|v|n) fa+=" -$d" ;;
- (+*) n=2
- break ;;
- (*) print -u2 'Usage: popd [-lvn] [+<n>].'
- return 1 ;;
- }
- done
- shift $((OPTIND - n))
- n=0
- if (( $# > 1 )); then
- print -u2 popd: Too many arguments.
- return 1
- elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
- if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
- print -u2 popd: Directory stack not that deep.
- return 1
- fi
- elif [[ -n $1 ]]; then
- print -u2 popd: Bad directory.
- return 1
- fi
- if (( ${#DIRSTACK[*]} < 2 )); then
- print -u2 popd: Directory stack empty.
- return 1
- fi
- unset DIRSTACK[n]
- set -A DIRSTACK -- "${DIRSTACK[@]}"
- cd_csh "${DIRSTACK[0]}" || return 1
- dirs $fa
-}
-function pushd {
- local d fa
- local -i n=1
-
- while getopts ":0123456789lvn" d; do
- case $d {
- (l|v|n) fa+=" -$d" ;;
- (+*) n=2
- break ;;
- (*) print -u2 'Usage: pushd [-lvn] [<dir>|+<n>].'
- return 1 ;;
- }
- done
- shift $((OPTIND - n))
- if (( $# == 0 )); then
- if (( ${#DIRSTACK[*]} < 2 )); then
- print -u2 pushd: No other directory.
- return 1
- fi
- d=${DIRSTACK[1]}
- DIRSTACK[1]=${DIRSTACK[0]}
- cd_csh "$d" || return 1
- elif (( $# > 1 )); then
- print -u2 pushd: Too many arguments.
- return 1
- elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
- if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
- print -u2 pushd: Directory stack not that deep.
- return 1
- fi
- while (( n-- )); do
- d=${DIRSTACK[0]}
- unset DIRSTACK[0]
- set -A DIRSTACK -- "${DIRSTACK[@]}" "$d"
- done
- cd_csh "${DIRSTACK[0]}" || return 1
- else
- set -A DIRSTACK -- placeholder "${DIRSTACK[@]}"
- cd_csh "$1" || return 1
- fi
- dirs $fa
-}
-
-# pager (not control character safe)
-function smores {
- local dummy line llen curlin=0
-
- cat "$@" | while IFS= read -r line; do
- llen=${%line}
- (( llen == -1 )) && llen=${#line}
- (( llen = llen ? (llen + COLUMNS - 1) / COLUMNS : 1 ))
- if (( (curlin += llen) >= LINES )); then
- print -n -- '\033[7m--more--\033[0m'
- read -u1 dummy
- [[ $dummy = [Qq]* ]] && return 0
- curlin=$llen
- fi
- print -r -- "$line"
- done
-}
-
-# base64 encoder and decoder, RFC compliant, NUL safe
-function Lb64decode {
- [[ -o utf8-mode ]]; local u=$?
- set +U
- local c s="$*" t=
- [[ -n $s ]] || { s=$(cat; print x); s=${s%x}; }
- local -i i=0 j=0 n=${#s} p=0 v x
- local -i16 o
-
- while (( i < n )); do
- c=${s:(i++):1}
- case $c {
- (=) break ;;
- ([A-Z]) (( v = 1#$c - 65 )) ;;
- ([a-z]) (( v = 1#$c - 71 )) ;;
- ([0-9]) (( v = 1#$c + 4 )) ;;
- (+) v=62 ;;
- (/) v=63 ;;
- (*) continue ;;
- }
- (( x = (x << 6) | v ))
- case $((p++)) {
- (0) continue ;;
- (1) (( o = (x >> 4) & 255 )) ;;
- (2) (( o = (x >> 2) & 255 )) ;;
- (3) (( o = x & 255 ))
- p=0
- ;;
- }
- t+=\\x${o#16#}
- (( ++j & 4095 )) && continue
- print -n $t
- t=
- done
- print -n $t
- (( u )) || set -U
-}
-
-set -A Lb64encode_code -- A B C D E F G H I J K L M N O P Q R S T U V W X Y Z \
- a b c d e f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9 + /
-function Lb64encode {
- [[ -o utf8-mode ]]; local u=$?
- set +U
- local c s t
- if (( $# )); then
- read -raN-1 s <<<"$*"
- unset s[${#s[*]}-1]
- else
- read -raN-1 s
- fi
- local -i i=0 n=${#s[*]} j v
-
- while (( i < n )); do
- (( v = s[i++] << 16 ))
- (( j = i < n ? s[i++] : 0 ))
- (( v |= j << 8 ))
- (( j = i < n ? s[i++] : 0 ))
- (( v |= j ))
- t+=${Lb64encode_code[v >> 18]}${Lb64encode_code[v >> 12 & 63]}
- c=${Lb64encode_code[v >> 6 & 63]}
- if (( i <= n )); then
- t+=$c${Lb64encode_code[v & 63]}
- elif (( i == n + 1 )); then
- t+=$c=
- else
- t+===
- fi
- if (( ${#t} == 76 || i >= n )); then
- print $t
- t=
- fi
- done
- (( u )) || set -U
-}
-
-# mksh NUL counting, never zero
-typeset -Z11 -Uui16 Lnzathash_v
-function Lnzathash_add {
- [[ -o utf8-mode ]]; local u=$?
- set +U
- local s
- if (( $# )); then
- read -raN-1 s <<<"$*"
- unset s[${#s[*]}-1]
- else
- read -raN-1 s
- fi
- local -i i=0 n=${#s[*]}
-
- while (( i < n )); do
- ((# Lnzathash_v = (Lnzathash_v + s[i++] + 1) * 1025 ))
- ((# Lnzathash_v ^= Lnzathash_v >> 6 ))
- done
-
- (( u )) || set -U
-}
-function Lnzaathash_end {
- ((# Lnzathash_v *= 1025 ))
- ((# Lnzathash_v ^= Lnzathash_v >> 6 ))
- ((# Lnzathash_v += Lnzathash_v << 3 ))
- ((# Lnzathash_v = (Lnzathash_v ^
- (Lnzathash_v >> 11)) * 32769 ))
- print ${Lnzathash_v#16#}
-}
-function Lnzaathash {
- Lnzathash_v=0
- Lnzathash_add "$@"
- Lnzaathash_end
-}
-function Lnzathash {
- Lnzathash_v=0
- Lnzathash_add "$@"
- Lnzathash_end
-}
-function Lnzathash_end {
- if (( Lnzathash_v )); then
- Lnzaathash_end
- else
- Lnzathash_v=1
- print ${Lnzathash_v#16#}
- fi
-}
-
-# strip comments (and leading/trailing whitespace if IFS is set) from
-# any file(s) given as argument, or stdin if none, and spew to stdout
-function Lstripcom {
- cat "$@" | { set -o noglob; while read _line; do
- _line=${_line%%#*}
- [[ -n $_line ]] && print -r -- $_line
- done; }
-}
-
-# give MidnightBSD's laffer1 a bit of csh feeling
-function setenv {
- eval export "\"$1\""'="$2"'
-}
-
-: place customisations below this line
-
-for p in ~/.etc/bin ~/bin; do
- [[ -d $p/. ]] || continue
- [[ :$PATH: = *:$p:* ]] || PATH=$p:$PATH
-done
-
-export SHELL=$MKSH MANWIDTH=80 LESSHISTFILE=-
-alias cls='print -n \\033c'
-
-#unset LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_IDENTIFICATION LC_MONETARY \
-# LC_NAME LC_NUMERIC LC_TELEPHONE LC_TIME
-#p=en_GB.UTF-8
-#set -U
-#export LANG=C LC_CTYPE=$p LC_MEASUREMENT=$p LC_MESSAGES=$p LC_PAPER=$p
-
-unset p
-
-: place customisations above this line
Copied: vendor/MirOS/mksh/R50/dot.mkshrc (from rev 6707, vendor/MirOS/mksh/dist/dot.mkshrc)
===================================================================
--- vendor/MirOS/mksh/R50/dot.mkshrc (rev 0)
+++ vendor/MirOS/mksh/R50/dot.mkshrc 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,402 @@
+# $Id$
+# $MirOS: src/bin/mksh/dot.mkshrc,v 1.88 2014/01/11 18:09:39 tg Exp $
+#-
+# Copyright (c) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010,
+# 2011, 2012, 2013, 2014
+# Thorsten Glaser <tg at mirbsd.org>
+#
+# Provided that these terms and disclaimer and all copyright notices
+# are retained or reproduced in an accompanying document, permission
+# is granted to deal in this work without restriction, including un-
+# limited rights to use, publicly perform, distribute, sell, modify,
+# merge, give away, or sublicence.
+#
+# This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+# the utmost extent permitted by applicable law, neither express nor
+# implied; without malicious intent or gross negligence. In no event
+# may a licensor, author or contributor be held liable for indirect,
+# direct, other damage, loss, or other issues arising in any way out
+# of dealing in the work, even if advised of the possibility of such
+# damage or existence of a defect, except proven that it results out
+# of said person's immediate fault when using the work as intended.
+#-
+# ${ENV:-~/.mkshrc}: mksh initialisation file for interactive shells
+
+# catch non-mksh (including lksh) trying to shell this file
+case $KSH_VERSION in
+*MIRBSD\ KSH*) ;;
+*) return 0 ;;
+esac
+
+PS1='#'; (( USER_ID )) && PS1='$'; [[ ${HOSTNAME:=$(ulimit -c 0; hostname -s \
+ 2>/dev/null)} = *([ ]|localhost) ]] && HOSTNAME=$(ulimit -c 0; hostname \
+ 2>/dev/null); : ${EDITOR:=/bin/ed} ${HOSTNAME:=nil} ${TERM:=vt100}
+: ${MKSH:=$(whence -p mksh)}; PS4='[$EPOCHREALTIME] '; PS1=$'\001\r''${|
+ local e=$?
+
+ (( e )) && REPLY+="$e|"
+ REPLY+=${USER:=$(ulimit -c 0; id -un 2>/dev/null || echo \?)}
+ REPLY+=@${HOSTNAME%%.*}:
+
+ local d=${PWD:-?} p=~; [[ $p = ?(*/) ]] || d=${d/#$p/~}
+ local m=${%d} n p=...; (( m > 0 )) || m=${#d}
+ (( m > (n = (COLUMNS/3 < 7 ? 7 : COLUMNS/3)) )) && d=${d:(-n)} || p=
+ REPLY+=$p$d
+
+ return $e
+} '"$PS1 "; export EDITOR HOSTNAME MKSH TERM USER
+alias ls=ls
+unalias ls
+alias l='ls -F'
+alias la='l -a'
+alias ll='l -l'
+alias lo='l -alo'
+alias doch='sudo mksh -c "$(fc -ln -1)"'
+whence -p rot13 >/dev/null || alias rot13='tr \
+ abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ \
+ nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
+if whence -p hd >/dev/null; then :; elif whence -p hexdump >/dev/null; then
+ function hd {
+ hexdump -e '"%08.8_ax " 8/1 "%02X " " - " 8/1 "%02X "' \
+ -e '" |" "%_p"' -e '"|\n"' "$@"
+ }
+else
+ function hd {
+ local -Uui16 -Z11 pos=0
+ local -Uui16 -Z5 hv=2147483647
+ local dasc line i
+
+ cat "$@" | { set +U; if read -arN -1 line; then
+ typeset -i1 line
+ i=0
+ while (( i < ${#line[*]} )); do
+ hv=${line[i++]}
+ if (( (pos & 15) == 0 )); then
+ (( pos )) && print -r -- "$dasc|"
+ print -n "${pos#16#} "
+ dasc=' |'
+ fi
+ print -n "${hv#16#} "
+ if (( (hv < 32) || (hv > 126) )); then
+ dasc+=.
+ else
+ dasc+=${line[i-1]#1#}
+ fi
+ (( (pos++ & 15) == 7 )) && print -n -- '- '
+ done
+ while (( pos & 15 )); do
+ print -n ' '
+ (( (pos++ & 15) == 7 )) && print -n -- '- '
+ done
+ (( hv == 2147483647 )) || print -r -- "$dasc|"
+ fi; }
+ }
+fi
+
+# Berkeley C shell compatible dirs, popd, and pushd functions
+# Z shell compatible chpwd() hook, used to update DIRSTACK[0]
+DIRSTACKBASE=$(realpath ~/. 2>/dev/null || print -nr -- "${HOME:-/}")
+set -A DIRSTACK
+function chpwd {
+ DIRSTACK[0]=$(realpath . 2>/dev/null || print -r -- "$PWD")
+ [[ $DIRSTACKBASE = ?(*/) ]] || \
+ DIRSTACK[0]=${DIRSTACK[0]/#$DIRSTACKBASE/~}
+ :
+}
+chpwd .
+function cd {
+ builtin cd "$@" || return $?
+ chpwd "$@"
+}
+function cd_csh {
+ local d t=${1/#~/$DIRSTACKBASE}
+
+ if ! d=$(builtin cd "$t" 2>&1); then
+ print -u2 "${1}: ${d##*cd: $t: }."
+ return 1
+ fi
+ cd "$t"
+}
+function dirs {
+ local d dwidth
+ local -i fl=0 fv=0 fn=0 cpos=0
+
+ while getopts ":lvn" d; do
+ case $d {
+ (l) fl=1 ;;
+ (v) fv=1 ;;
+ (n) fn=1 ;;
+ (*) print -u2 'Usage: dirs [-lvn].'
+ return 1 ;;
+ }
+ done
+ shift $((OPTIND - 1))
+ if (( $# > 0 )); then
+ print -u2 'Usage: dirs [-lvn].'
+ return 1
+ fi
+ if (( fv )); then
+ fv=0
+ while (( fv < ${#DIRSTACK[*]} )); do
+ d=${DIRSTACK[fv]}
+ (( fl )) && d=${d/#~/$DIRSTACKBASE}
+ print -r -- "$fv $d"
+ let fv++
+ done
+ else
+ fv=0
+ while (( fv < ${#DIRSTACK[*]} )); do
+ d=${DIRSTACK[fv]}
+ (( fl )) && d=${d/#~/$DIRSTACKBASE}
+ (( dwidth = (${%d} > 0 ? ${%d} : ${#d}) ))
+ if (( fn && (cpos += dwidth + 1) >= 79 && \
+ dwidth < 80 )); then
+ print
+ (( cpos = dwidth + 1 ))
+ fi
+ print -nr -- "$d "
+ let fv++
+ done
+ print
+ fi
+ return 0
+}
+function popd {
+ local d fa
+ local -i n=1
+
+ while getopts ":0123456789lvn" d; do
+ case $d {
+ (l|v|n) fa+=" -$d" ;;
+ (+*) n=2
+ break ;;
+ (*) print -u2 'Usage: popd [-lvn] [+<n>].'
+ return 1 ;;
+ }
+ done
+ shift $((OPTIND - n))
+ n=0
+ if (( $# > 1 )); then
+ print -u2 popd: Too many arguments.
+ return 1
+ elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
+ if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
+ print -u2 popd: Directory stack not that deep.
+ return 1
+ fi
+ elif [[ -n $1 ]]; then
+ print -u2 popd: Bad directory.
+ return 1
+ fi
+ if (( ${#DIRSTACK[*]} < 2 )); then
+ print -u2 popd: Directory stack empty.
+ return 1
+ fi
+ unset DIRSTACK[n]
+ set -A DIRSTACK -- "${DIRSTACK[@]}"
+ cd_csh "${DIRSTACK[0]}" || return 1
+ dirs $fa
+}
+function pushd {
+ local d fa
+ local -i n=1
+
+ while getopts ":0123456789lvn" d; do
+ case $d {
+ (l|v|n) fa+=" -$d" ;;
+ (+*) n=2
+ break ;;
+ (*) print -u2 'Usage: pushd [-lvn] [<dir>|+<n>].'
+ return 1 ;;
+ }
+ done
+ shift $((OPTIND - n))
+ if (( $# == 0 )); then
+ if (( ${#DIRSTACK[*]} < 2 )); then
+ print -u2 pushd: No other directory.
+ return 1
+ fi
+ d=${DIRSTACK[1]}
+ DIRSTACK[1]=${DIRSTACK[0]}
+ cd_csh "$d" || return 1
+ elif (( $# > 1 )); then
+ print -u2 pushd: Too many arguments.
+ return 1
+ elif [[ $1 = ++([0-9]) && $1 != +0 ]]; then
+ if (( (n = ${1#+}) >= ${#DIRSTACK[*]} )); then
+ print -u2 pushd: Directory stack not that deep.
+ return 1
+ fi
+ while (( n-- )); do
+ d=${DIRSTACK[0]}
+ unset DIRSTACK[0]
+ set -A DIRSTACK -- "${DIRSTACK[@]}" "$d"
+ done
+ cd_csh "${DIRSTACK[0]}" || return 1
+ else
+ set -A DIRSTACK -- placeholder "${DIRSTACK[@]}"
+ cd_csh "$1" || return 1
+ fi
+ dirs $fa
+}
+
+# pager (not control character safe)
+function smores {
+ local dummy line llen curlin=0
+
+ cat "$@" | while IFS= read -r line; do
+ llen=${%line}
+ (( llen == -1 )) && llen=${#line}
+ (( llen = llen ? (llen + COLUMNS - 1) / COLUMNS : 1 ))
+ if (( (curlin += llen) >= LINES )); then
+ print -n -- '\033[7m--more--\033[0m'
+ read -u1 dummy
+ [[ $dummy = [Qq]* ]] && return 0
+ curlin=$llen
+ fi
+ print -r -- "$line"
+ done
+}
+
+# base64 encoder and decoder, RFC compliant, NUL safe
+function Lb64decode {
+ [[ -o utf8-mode ]]; local u=$?
+ set +U
+ local c s="$*" t=
+ [[ -n $s ]] || { s=$(cat; print x); s=${s%x}; }
+ local -i i=0 j=0 n=${#s} p=0 v x
+ local -i16 o
+
+ while (( i < n )); do
+ c=${s:(i++):1}
+ case $c {
+ (=) break ;;
+ ([A-Z]) (( v = 1#$c - 65 )) ;;
+ ([a-z]) (( v = 1#$c - 71 )) ;;
+ ([0-9]) (( v = 1#$c + 4 )) ;;
+ (+) v=62 ;;
+ (/) v=63 ;;
+ (*) continue ;;
+ }
+ (( x = (x << 6) | v ))
+ case $((p++)) {
+ (0) continue ;;
+ (1) (( o = (x >> 4) & 255 )) ;;
+ (2) (( o = (x >> 2) & 255 )) ;;
+ (3) (( o = x & 255 ))
+ p=0
+ ;;
+ }
+ t+=\\x${o#16#}
+ (( ++j & 4095 )) && continue
+ print -n $t
+ t=
+ done
+ print -n $t
+ (( u )) || set -U
+}
+
+set -A Lb64encode_code -- A B C D E F G H I J K L M N O P Q R S T U V W X Y Z \
+ a b c d e f g h i j k l m n o p q r s t u v w x y z 0 1 2 3 4 5 6 7 8 9 + /
+function Lb64encode {
+ [[ -o utf8-mode ]]; local u=$?
+ set +U
+ local c s t
+ if (( $# )); then
+ read -raN-1 s <<<"$*"
+ unset s[${#s[*]}-1]
+ else
+ read -raN-1 s
+ fi
+ local -i i=0 n=${#s[*]} j v
+
+ while (( i < n )); do
+ (( v = s[i++] << 16 ))
+ (( j = i < n ? s[i++] : 0 ))
+ (( v |= j << 8 ))
+ (( j = i < n ? s[i++] : 0 ))
+ (( v |= j ))
+ t+=${Lb64encode_code[v >> 18]}${Lb64encode_code[v >> 12 & 63]}
+ c=${Lb64encode_code[v >> 6 & 63]}
+ if (( i <= n )); then
+ t+=$c${Lb64encode_code[v & 63]}
+ elif (( i == n + 1 )); then
+ t+=$c=
+ else
+ t+===
+ fi
+ if (( ${#t} == 76 || i >= n )); then
+ print $t
+ t=
+ fi
+ done
+ (( u )) || set -U
+}
+
+# Better Avalanche for the Jenkins Hash
+typeset -Z11 -Uui16 Lbafh_v
+function Lbafh_init {
+ Lbafh_v=0
+}
+function Lbafh_add {
+ [[ -o utf8-mode ]]; local u=$?
+ set +U
+ local s
+ if (( $# )); then
+ read -raN-1 s <<<"$*"
+ unset s[${#s[*]}-1]
+ else
+ read -raN-1 s
+ fi
+ local -i i=0 n=${#s[*]}
+
+ while (( i < n )); do
+ ((# Lbafh_v = (Lbafh_v + s[i++] + 1) * 1025 ))
+ ((# Lbafh_v ^= Lbafh_v >> 6 ))
+ done
+
+ (( u )) || set -U
+}
+function Lbafh_finish {
+ local -Ui t
+
+ ((# t = (((Lbafh_v >> 7) & 0x01010101) * 0x1B) ^ \
+ ((Lbafh_v << 1) & 0xFEFEFEFE) ))
+ ((# Lbafh_v = t ^ (t >>> 8) ^ (Lbafh_v >>> 8) ^ \
+ (Lbafh_v >>> 16) ^ (Lbafh_v >>> 24) ))
+ :
+}
+
+# strip comments (and leading/trailing whitespace if IFS is set) from
+# any file(s) given as argument, or stdin if none, and spew to stdout
+function Lstripcom {
+ cat "$@" | { set -o noglob; while read _line; do
+ _line=${_line%%#*}
+ [[ -n $_line ]] && print -r -- $_line
+ done; }
+}
+
+# give MidnightBSD's laffer1 a bit of csh feeling
+function setenv {
+ eval export "\"$1\""'="$2"'
+}
+
+: place customisations below this line
+
+for p in ~/.etc/bin ~/bin; do
+ [[ -d $p/. ]] || continue
+ [[ :$PATH: = *:$p:* ]] || PATH=$p:$PATH
+done
+
+export SHELL=$MKSH MANWIDTH=80 LESSHISTFILE=-
+alias cls='print -n \\033c'
+
+#unset LANGUAGE LC_ADDRESS LC_ALL LC_COLLATE LC_IDENTIFICATION LC_MONETARY \
+# LC_NAME LC_NUMERIC LC_TELEPHONE LC_TIME
+#p=en_GB.UTF-8
+#set -U
+#export LANG=C LC_CTYPE=$p LC_MEASUREMENT=$p LC_MESSAGES=$p LC_PAPER=$p
+
+unset p
+
+: place customisations above this line
Deleted: vendor/MirOS/mksh/R50/edit.c
===================================================================
--- vendor/MirOS/mksh/dist/edit.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/edit.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,5510 +0,0 @@
-/* $OpenBSD: edit.c,v 1.38 2013/06/03 15:41:59 tedu Exp $ */
-/* $OpenBSD: edit.h,v 1.9 2011/05/30 17:14:35 martynas Exp $ */
-/* $OpenBSD: emacs.c,v 1.44 2011/09/05 04:50:33 marco Exp $ */
-/* $OpenBSD: vi.c,v 1.26 2009/06/29 22:50:19 martynas Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- * 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-
-#ifndef MKSH_NO_CMDLINE_EDITING
-
-__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.270 2013/08/14 20:26:17 tg Exp $");
-
-/*
- * in later versions we might use libtermcap for this, but since external
- * dependencies are problematic, this has not yet been decided on; another
- * good string is "\033c" except on hardware terminals like the DEC VT420
- * which do a full power cycle then...
- */
-#ifndef MKSH_CLS_STRING
-#define MKSH_CLS_STRING "\033[;H\033[J"
-#endif
-#ifndef MKSH_CLRTOEOL_STRING
-#define MKSH_CLRTOEOL_STRING "\033[K"
-#endif
-
-/* tty driver characters we are interested in */
-typedef struct {
- int erase;
- int kill;
- int werase;
- int intr;
- int quit;
- int eof;
-} X_chars;
-
-static X_chars edchars;
-
-/* x_cf_glob() flags */
-#define XCF_COMMAND BIT(0) /* Do command completion */
-#define XCF_FILE BIT(1) /* Do file completion */
-#define XCF_FULLPATH BIT(2) /* command completion: store full path */
-#define XCF_COMMAND_FILE (XCF_COMMAND | XCF_FILE)
-#define XCF_IS_COMMAND BIT(3) /* return flag: is command */
-#define XCF_IS_NOSPACE BIT(4) /* return flag: do not append a space */
-
-static char editmode;
-static int xx_cols; /* for Emacs mode */
-static int modified; /* buffer has been "modified" */
-static char *holdbufp; /* place to hold last edit buffer */
-
-static int x_getc(void);
-static void x_putcf(int);
-static void x_modified(void);
-static void x_mode(bool);
-static int x_do_comment(char *, ssize_t, ssize_t *);
-static void x_print_expansions(int, char * const *, bool);
-static int x_cf_glob(int *, const char *, int, int, int *, int *, char ***);
-static size_t x_longest_prefix(int, char * const *);
-static void x_glob_hlp_add_qchar(char *);
-static char *x_glob_hlp_tilde_and_rem_qchar(char *, bool);
-static int x_basename(const char *, const char *);
-static void x_free_words(int, char **);
-static int x_escape(const char *, size_t, int (*)(const char *, size_t));
-static int x_emacs(char *);
-static void x_init_prompt(void);
-#if !MKSH_S_NOVI
-static int x_vi(char *);
-#endif
-
-#define x_flush() shf_flush(shl_out)
-#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
-#define x_putc(c) x_putcf(c)
-#else
-#define x_putc(c) shf_putc((c), shl_out)
-#endif
-
-static int path_order_cmp(const void *, const void *);
-static void glob_table(const char *, XPtrV *, struct table *);
-static void glob_path(int, const char *, XPtrV *, const char *);
-static int x_file_glob(int *, char *, char ***);
-static int x_command_glob(int, char *, char ***);
-static int x_locate_word(const char *, int, int, int *, bool *);
-
-static int x_e_getmbc(char *);
-static int x_e_rebuildline(const char *);
-
-/* +++ generic editing functions +++ */
-
-/*
- * read an edited command line
- */
-int
-x_read(char *buf)
-{
- int i;
-
- x_mode(true);
- modified = 1;
- if (Flag(FEMACS) || Flag(FGMACS))
- i = x_emacs(buf);
-#if !MKSH_S_NOVI
- else if (Flag(FVI))
- i = x_vi(buf);
-#endif
- else
- /* internal error */
- i = -1;
- editmode = 0;
- x_mode(false);
- return (i);
-}
-
-/* tty I/O */
-
-static int
-x_getc(void)
-{
- char c;
- ssize_t n;
-
- while ((n = blocking_read(STDIN_FILENO, &c, 1)) < 0 && errno == EINTR)
- if (trap) {
- x_mode(false);
- runtraps(0);
-#ifdef SIGWINCH
- if (got_winch) {
- change_winsz();
- if (x_cols != xx_cols && editmode == 1) {
- /* redraw line in Emacs mode */
- xx_cols = x_cols;
- x_e_rebuildline(MKSH_CLRTOEOL_STRING);
- }
- }
-#endif
- x_mode(true);
- }
- return ((n == 1) ? (int)(unsigned char)c : -1);
-}
-
-static void
-x_putcf(int c)
-{
- shf_putc(c, shl_out);
-}
-
-/*********************************
- * Misc common code for vi/emacs *
- *********************************/
-
-/*-
- * Handle the commenting/uncommenting of a line.
- * Returns:
- * 1 if a carriage return is indicated (comment added)
- * 0 if no return (comment removed)
- * -1 if there is an error (not enough room for comment chars)
- * If successful, *lenp contains the new length. Note: cursor should be
- * moved to the start of the line after (un)commenting.
- */
-static int
-x_do_comment(char *buf, ssize_t bsize, ssize_t *lenp)
-{
- ssize_t i, j, len = *lenp;
-
- if (len == 0)
- /* somewhat arbitrary - it's what AT&T ksh does */
- return (1);
-
- /* Already commented? */
- if (buf[0] == '#') {
- bool saw_nl = false;
-
- for (j = 0, i = 1; i < len; i++) {
- if (!saw_nl || buf[i] != '#')
- buf[j++] = buf[i];
- saw_nl = buf[i] == '\n';
- }
- *lenp = j;
- return (0);
- } else {
- int n = 1;
-
- /* See if there's room for the #s - 1 per \n */
- for (i = 0; i < len; i++)
- if (buf[i] == '\n')
- n++;
- if (len + n >= bsize)
- return (-1);
- /* Now add them... */
- for (i = len, j = len + n; --i >= 0; ) {
- if (buf[i] == '\n')
- buf[--j] = '#';
- buf[--j] = buf[i];
- }
- buf[0] = '#';
- *lenp += n;
- return (1);
- }
-}
-
-/****************************************************
- * Common file/command completion code for vi/emacs *
- ****************************************************/
-
-static void
-x_print_expansions(int nwords, char * const *words, bool is_command)
-{
- bool use_copy = false;
- int prefix_len;
- XPtrV l = { NULL, 0, 0 };
-
- /*
- * Check if all matches are in the same directory (in this
- * case, we want to omit the directory name)
- */
- if (!is_command &&
- (prefix_len = x_longest_prefix(nwords, words)) > 0) {
- int i;
-
- /* Special case for 1 match (prefix is whole word) */
- if (nwords == 1)
- prefix_len = x_basename(words[0], NULL);
- /* Any (non-trailing) slashes in non-common word suffixes? */
- for (i = 0; i < nwords; i++)
- if (x_basename(words[i] + prefix_len, NULL) >
- prefix_len)
- break;
- /* All in same directory? */
- if (i == nwords) {
- while (prefix_len > 0 && words[0][prefix_len - 1] != '/')
- prefix_len--;
- use_copy = true;
- XPinit(l, nwords + 1);
- for (i = 0; i < nwords; i++)
- XPput(l, words[i] + prefix_len);
- XPput(l, NULL);
- }
- }
- /*
- * Enumerate expansions
- */
- x_putc('\r');
- x_putc('\n');
- pr_list(use_copy ? (char **)XPptrv(l) : words);
-
- if (use_copy)
- /* not x_free_words() */
- XPfree(l);
-}
-
-/*
- * Convert backslash-escaped string to QCHAR-escaped
- * string useful for globbing; loses QCHAR unless it
- * can squeeze in, eg. by previous loss of backslash
- */
-static void
-x_glob_hlp_add_qchar(char *cp)
-{
- char ch, *dp = cp;
- bool escaping = false;
-
- while ((ch = *cp++)) {
- if (ch == '\\' && !escaping) {
- escaping = true;
- continue;
- }
- if (escaping || (ch == QCHAR && (cp - dp) > 1)) {
- /*
- * empirically made list of chars to escape
- * for globbing as well as QCHAR itself
- */
- switch (ch) {
- case QCHAR:
- case '$':
- case '*':
- case '?':
- case '[':
- case '\\':
- case '`':
- *dp++ = QCHAR;
- break;
- }
- escaping = false;
- }
- *dp++ = ch;
- }
- *dp = '\0';
-}
-
-/*
- * Run tilde expansion on argument string, return the result
- * after unescaping; if the flag is set, the original string
- * is freed if changed and assumed backslash-escaped, if not
- * it is assumed QCHAR-escaped
- */
-static char *
-x_glob_hlp_tilde_and_rem_qchar(char *s, bool magic_flag)
-{
- char ch, *cp, *dp;
-
- /*
- * On the string, check whether we have a tilde expansion,
- * and if so, discern "~foo/bar" and "~/baz" from "~blah";
- * if we have a directory part (the former), try to expand
- */
- if (*s == '~' && (cp = strchr(s, '/')) != NULL) {
- /* ok, so split into "~foo"/"bar" or "~"/"baz" */
- *cp++ = 0;
- /* try to expand the tilde */
- if (!(dp = tilde(s + 1))) {
- /* nope, revert damage */
- *--cp = '/';
- } else {
- /* ok, expand and replace */
- cp = shf_smprintf("%s/%s", dp, cp);
- if (magic_flag)
- afree(s, ATEMP);
- s = cp;
- }
- }
-
- /* ... convert it from backslash-escaped via QCHAR-escaped... */
- if (magic_flag)
- x_glob_hlp_add_qchar(s);
- /* ... to unescaped, for comparison with the matches */
- cp = dp = s;
-
- while ((ch = *cp++)) {
- if (ch == QCHAR && !(ch = *cp++))
- break;
- *dp++ = ch;
- }
- *dp = '\0';
-
- return (s);
-}
-
-/**
- * Do file globbing:
- * - does expansion, checks for no match, etc.
- * - sets *wordsp to array of matching strings
- * - returns number of matching strings
- */
-static int
-x_file_glob(int *flagsp, char *toglob, char ***wordsp)
-{
- char **words, *cp;
- int nwords;
- XPtrV w;
- struct source *s, *sold;
-
- /* remove all escaping backward slashes */
- x_glob_hlp_add_qchar(toglob);
-
- /*
- * Convert "foo*" (toglob) to an array of strings (words)
- */
- sold = source;
- s = pushs(SWSTR, ATEMP);
- s->start = s->str = toglob;
- source = s;
- if (yylex(ONEWORD | LQCHAR) != LWORD) {
- source = sold;
- internal_warningf("%s: %s", "fileglob", "bad substitution");
- return (0);
- }
- source = sold;
- afree(s, ATEMP);
- XPinit(w, 32);
- cp = yylval.cp;
- while (*cp == CHAR || *cp == QCHAR)
- cp += 2;
- nwords = DOGLOB | DOTILDE | DOMARKDIRS;
- if (*cp != EOS) {
- /* probably a $FOO expansion */
- *flagsp |= XCF_IS_NOSPACE;
- /* this always results in at most one match */
- nwords = 0;
- }
- expand(yylval.cp, &w, nwords);
- XPput(w, NULL);
- words = (char **)XPclose(w);
-
- for (nwords = 0; words[nwords]; nwords++)
- ;
- if (nwords == 1) {
- struct stat statb;
-
- /* Expand any tilde and drop all QCHAR for comparison */
- toglob = x_glob_hlp_tilde_and_rem_qchar(toglob, false);
-
- /*
- * Check if globbing failed (returned glob pattern),
- * but be careful (e.g. toglob == "ab*" when the file
- * "ab*" exists is not an error).
- * Also, check for empty result - happens if we tried
- * to glob something which evaluated to an empty
- * string (e.g., "$FOO" when there is no FOO, etc).
- */
- if ((strcmp(words[0], toglob) == 0 &&
- stat(words[0], &statb) < 0) ||
- words[0][0] == '\0') {
- x_free_words(nwords, words);
- words = NULL;
- nwords = 0;
- }
- }
-
- if ((*wordsp = nwords ? words : NULL) == NULL && words != NULL)
- x_free_words(nwords, words);
-
- return (nwords);
-}
-
-/* Data structure used in x_command_glob() */
-struct path_order_info {
- char *word;
- int base;
- int path_order;
-};
-
-/* Compare routine used in x_command_glob() */
-static int
-path_order_cmp(const void *aa, const void *bb)
-{
- const struct path_order_info *a = (const struct path_order_info *)aa;
- const struct path_order_info *b = (const struct path_order_info *)bb;
- int t;
-
- t = strcmp(a->word + a->base, b->word + b->base);
- return (t ? t : a->path_order - b->path_order);
-}
-
-static int
-x_command_glob(int flags, char *toglob, char ***wordsp)
-{
- char *pat, *fpath;
- size_t nwords;
- XPtrV w;
- struct block *l;
-
- /* Convert "foo*" (toglob) to a pattern for future use */
- pat = evalstr(toglob, DOPAT | DOTILDE);
-
- XPinit(w, 32);
-
- glob_table(pat, &w, &keywords);
- glob_table(pat, &w, &aliases);
- glob_table(pat, &w, &builtins);
- for (l = e->loc; l; l = l->next)
- glob_table(pat, &w, &l->funs);
-
- glob_path(flags, pat, &w, path);
- if ((fpath = str_val(global("FPATH"))) != null)
- glob_path(flags, pat, &w, fpath);
-
- nwords = XPsize(w);
-
- if (!nwords) {
- *wordsp = NULL;
- XPfree(w);
- return (0);
- }
- /* Sort entries */
- if (flags & XCF_FULLPATH) {
- /* Sort by basename, then path order */
- struct path_order_info *info, *last_info = NULL;
- char **words = (char **)XPptrv(w);
- size_t i, path_order = 0;
-
- info = (struct path_order_info *)
- alloc2(nwords, sizeof(struct path_order_info), ATEMP);
- for (i = 0; i < nwords; i++) {
- info[i].word = words[i];
- info[i].base = x_basename(words[i], NULL);
- if (!last_info || info[i].base != last_info->base ||
- strncmp(words[i], last_info->word, info[i].base) != 0) {
- last_info = &info[i];
- path_order++;
- }
- info[i].path_order = path_order;
- }
- qsort(info, nwords, sizeof(struct path_order_info),
- path_order_cmp);
- for (i = 0; i < nwords; i++)
- words[i] = info[i].word;
- afree(info, ATEMP);
- } else {
- /* Sort and remove duplicate entries */
- char **words = (char **)XPptrv(w);
- size_t i, j;
-
- qsort(words, nwords, sizeof(void *), xstrcmp);
- for (i = j = 0; i < nwords - 1; i++) {
- if (strcmp(words[i], words[i + 1]))
- words[j++] = words[i];
- else
- afree(words[i], ATEMP);
- }
- words[j++] = words[i];
- w.len = nwords = j;
- }
-
- XPput(w, NULL);
- *wordsp = (char **)XPclose(w);
-
- return (nwords);
-}
-
-#define IS_WORDC(c) (!ctype(c, C_LEX1) && (c) != '\'' && (c) != '"' && \
- (c) != '`' && (c) != '=' && (c) != ':')
-
-static int
-x_locate_word(const char *buf, int buflen, int pos, int *startp,
- bool *is_commandp)
-{
- int start, end;
-
- /* Bad call? Probably should report error */
- if (pos < 0 || pos > buflen) {
- *startp = pos;
- *is_commandp = false;
- return (0);
- }
- /* The case where pos == buflen happens to take care of itself... */
-
- start = pos;
- /*
- * Keep going backwards to start of word (has effect of allowing
- * one blank after the end of a word)
- */
- for (; (start > 0 && IS_WORDC(buf[start - 1])) ||
- (start > 1 && buf[start - 2] == '\\'); start--)
- ;
- /* Go forwards to end of word */
- for (end = start; end < buflen && IS_WORDC(buf[end]); end++) {
- if (buf[end] == '\\' && (end + 1) < buflen)
- end++;
- }
-
- if (is_commandp) {
- bool iscmd;
- int p = start - 1;
-
- /* Figure out if this is a command */
- while (p >= 0 && ksh_isspace(buf[p]))
- p--;
- iscmd = p < 0 || vstrchr(";|&()`", buf[p]);
- if (iscmd) {
- /*
- * If command has a /, path, etc. is not searched;
- * only current directory is searched which is just
- * like file globbing.
- */
- for (p = start; p < end; p++)
- if (buf[p] == '/')
- break;
- iscmd = p == end;
- }
- *is_commandp = iscmd;
- }
- *startp = start;
-
- return (end - start);
-}
-
-static int
-x_cf_glob(int *flagsp, const char *buf, int buflen, int pos, int *startp,
- int *endp, char ***wordsp)
-{
- int len, nwords = 0;
- char **words = NULL;
- bool is_command;
-
- mkssert(buf != NULL);
-
- len = x_locate_word(buf, buflen, pos, startp, &is_command);
- if (!((*flagsp) & XCF_COMMAND))
- is_command = false;
- /*
- * Don't do command globing on zero length strings - it takes too
- * long and isn't very useful. File globs are more likely to be
- * useful, so allow these.
- */
- if (len == 0 && is_command)
- return (0);
-
- if (len >= 0) {
- char *toglob, *s;
-
- /*
- * Given a string, copy it and possibly add a '*' to the end.
- */
-
- strndupx(toglob, buf + *startp, len + /* the '*' */ 1, ATEMP);
- toglob[len] = '\0';
-
- /*
- * If the pathname contains a wildcard (an unquoted '*',
- * '?', or '[') or an extglob, then it is globbed based
- * on that value (i.e., without the appended '*'). Same
- * for parameter substitutions (as in “cat $HOME/.ss↹”)
- * without appending a trailing space (LP: #710539), as
- * well as for “~foo” (but not “~foo/”).
- */
- for (s = toglob; *s; s++) {
- if (*s == '\\' && s[1])
- s++;
- else if (*s == '?' || *s == '*' || *s == '[' ||
- *s == '$' ||
- /* ?() *() +() @() !() but two already checked */
- (s[1] == '(' /*)*/ &&
- (*s == '+' || *s == '@' || *s == '!'))) {
- /*
- * just expand based on the extglob
- * or parameter
- */
- goto dont_add_glob;
- }
- }
-
- if (*toglob == '~' && !vstrchr(toglob, '/')) {
- /* neither for '~foo' (but '~foo/bar') */
- *flagsp |= XCF_IS_NOSPACE;
- goto dont_add_glob;
- }
-
- /* append a glob */
- toglob[len] = '*';
- toglob[len + 1] = '\0';
- dont_add_glob:
- /*
- * Expand (glob) it now.
- */
-
- nwords = is_command ?
- x_command_glob(*flagsp, toglob, &words) :
- x_file_glob(flagsp, toglob, &words);
- afree(toglob, ATEMP);
- }
- if (nwords == 0) {
- *wordsp = NULL;
- return (0);
- }
- if (is_command)
- *flagsp |= XCF_IS_COMMAND;
- *wordsp = words;
- *endp = *startp + len;
-
- return (nwords);
-}
-
-/*
- * Find longest common prefix
- */
-static size_t
-x_longest_prefix(int nwords, char * const * words)
-{
- int i;
- size_t j, prefix_len;
- char *p;
-
- if (nwords <= 0)
- return (0);
-
- prefix_len = strlen(words[0]);
- for (i = 1; i < nwords; i++)
- for (j = 0, p = words[i]; j < prefix_len; j++)
- if (p[j] != words[0][j]) {
- prefix_len = j;
- break;
- }
- /* false for nwords==1 as 0 = words[0][prefix_len] then */
- if (UTFMODE && prefix_len && (words[0][prefix_len] & 0xC0) == 0x80)
- while (prefix_len && (words[0][prefix_len] & 0xC0) != 0xC0)
- --prefix_len;
- return (prefix_len);
-}
-
-static void
-x_free_words(int nwords, char **words)
-{
- while (nwords)
- afree(words[--nwords], ATEMP);
- afree(words, ATEMP);
-}
-
-/*-
- * Return the offset of the basename of string s (which ends at se - need not
- * be null terminated). Trailing slashes are ignored. If s is just a slash,
- * then the offset is 0 (actually, length - 1).
- * s Return
- * /etc 1
- * /etc/ 1
- * /etc// 1
- * /etc/fo 5
- * foo 0
- * /// 2
- * 0
- */
-static int
-x_basename(const char *s, const char *se)
-{
- const char *p;
-
- if (se == NULL)
- se = s + strlen(s);
- if (s == se)
- return (0);
-
- /* Skip trailing slashes */
- for (p = se - 1; p > s && *p == '/'; p--)
- ;
- for (; p > s && *p != '/'; p--)
- ;
- if (*p == '/' && p + 1 < se)
- p++;
-
- return (p - s);
-}
-
-/*
- * Apply pattern matching to a table: all table entries that match a pattern
- * are added to wp.
- */
-static void
-glob_table(const char *pat, XPtrV *wp, struct table *tp)
-{
- struct tstate ts;
- struct tbl *te;
-
- ktwalk(&ts, tp);
- while ((te = ktnext(&ts)))
- if (gmatchx(te->name, pat, false)) {
- char *cp;
-
- strdupx(cp, te->name, ATEMP);
- XPput(*wp, cp);
- }
-}
-
-static void
-glob_path(int flags, const char *pat, XPtrV *wp, const char *lpath)
-{
- const char *sp = lpath, *p;
- char *xp, **words;
- size_t pathlen, patlen, oldsize, newsize, i, j;
- XString xs;
-
- patlen = strlen(pat);
- checkoktoadd(patlen, 129 + X_EXTRA);
- ++patlen;
- Xinit(xs, xp, patlen + 128, ATEMP);
- while (sp) {
- xp = Xstring(xs, xp);
- if (!(p = cstrchr(sp, ':')))
- p = sp + strlen(sp);
- pathlen = p - sp;
- if (pathlen) {
- /*
- * Copy sp into xp, stuffing any MAGIC characters
- * on the way
- */
- const char *s = sp;
-
- XcheckN(xs, xp, pathlen * 2);
- while (s < p) {
- if (ISMAGIC(*s))
- *xp++ = MAGIC;
- *xp++ = *s++;
- }
- *xp++ = '/';
- pathlen++;
- }
- sp = p;
- XcheckN(xs, xp, patlen);
- memcpy(xp, pat, patlen);
-
- oldsize = XPsize(*wp);
- /* mark dirs */
- glob_str(Xstring(xs, xp), wp, true);
- newsize = XPsize(*wp);
-
- /* Check that each match is executable... */
- words = (char **)XPptrv(*wp);
- for (i = j = oldsize; i < newsize; i++) {
- if (ksh_access(words[i], X_OK) == 0) {
- words[j] = words[i];
- if (!(flags & XCF_FULLPATH))
- memmove(words[j], words[j] + pathlen,
- strlen(words[j] + pathlen) + 1);
- j++;
- } else
- afree(words[i], ATEMP);
- }
- wp->len = j;
-
- if (!*sp++)
- break;
- }
- Xfree(xs, xp);
-}
-
-/*
- * if argument string contains any special characters, they will
- * be escaped and the result will be put into edit buffer by
- * keybinding-specific function
- */
-static int
-x_escape(const char *s, size_t len, int (*putbuf_func)(const char *, size_t))
-{
- size_t add = 0, wlen = len;
- const char *ifs = str_val(local("IFS", 0));
- int rval = 0;
-
- while (wlen - add > 0)
- if (vstrchr("\"#$&'()*:;<=>?[\\`{|}", s[add]) ||
- vstrchr(ifs, s[add])) {
- if (putbuf_func(s, add) != 0) {
- rval = -1;
- break;
- }
- putbuf_func(s[add] == '\n' ? "'" : "\\", 1);
- putbuf_func(&s[add], 1);
- if (s[add] == '\n')
- putbuf_func("'", 1);
-
- add++;
- wlen -= add;
- s += add;
- add = 0;
- } else
- ++add;
- if (wlen > 0 && rval == 0)
- rval = putbuf_func(s, wlen);
-
- return (rval);
-}
-
-
-/* +++ emacs editing mode +++ */
-
-static Area aedit;
-#define AEDIT &aedit /* area for kill ring and macro defns */
-
-/* values returned by keyboard functions */
-#define KSTD 0
-#define KEOL 1 /* ^M, ^J */
-#define KINTR 2 /* ^G, ^C */
-
-struct x_ftab {
- int (*xf_func)(int c);
- const char *xf_name;
- short xf_flags;
-};
-
-struct x_defbindings {
- unsigned char xdb_func; /* XFUNC_* */
- unsigned char xdb_tab;
- unsigned char xdb_char;
-};
-
-#define XF_ARG 1 /* command takes number prefix */
-#define XF_NOBIND 2 /* not allowed to bind to function */
-#define XF_PREFIX 4 /* function sets prefix */
-
-/* Separator for completion */
-#define is_cfs(c) ((c) == ' ' || (c) == '\t' || (c) == '"' || (c) == '\'')
-/* Separator for motion */
-#define is_mfs(c) (!(ksh_isalnux(c) || (c) == '$' || ((c) & 0x80)))
-
-#define X_NTABS 3 /* normal, meta1, meta2 */
-#define X_TABSZ 256 /* size of keydef tables etc */
-
-/*-
- * Arguments for do_complete()
- * 0 = enumerate M-= complete as much as possible and then list
- * 1 = complete M-Esc
- * 2 = list M-?
- */
-typedef enum {
- CT_LIST, /* list the possible completions */
- CT_COMPLETE, /* complete to longest prefix */
- CT_COMPLIST /* complete and then list (if non-exact) */
-} Comp_type;
-
-/*
- * The following are used for my horizontal scrolling stuff
- */
-static char *xbuf; /* beg input buffer */
-static char *xend; /* end input buffer */
-static char *xcp; /* current position */
-static char *xep; /* current end */
-static char *xbp; /* start of visible portion of input buffer */
-static char *xlp; /* last char visible on screen */
-static bool x_adj_ok;
-/*
- * we use x_adj_done so that functions can tell
- * whether x_adjust() has been called while they are active.
- */
-static int x_adj_done; /* is incremented by x_adjust() */
-
-static int x_displen;
-static int x_arg; /* general purpose arg */
-static bool x_arg_defaulted; /* x_arg not explicitly set; defaulted to 1 */
-
-static bool xlp_valid; /* lastvis pointer was recalculated */
-
-static char **x_histp; /* history position */
-static int x_nextcmd; /* for newline-and-next */
-static char **x_histncp; /* saved x_histp for " */
-static char *xmp; /* mark pointer */
-static unsigned char x_last_command;
-static unsigned char (*x_tab)[X_TABSZ]; /* key definition */
-#ifndef MKSH_SMALL
-static char *(*x_atab)[X_TABSZ]; /* macro definitions */
-#endif
-static unsigned char x_bound[(X_TABSZ * X_NTABS + 7) / 8];
-#define KILLSIZE 20
-static char *killstack[KILLSIZE];
-static int killsp, killtp;
-static int x_curprefix;
-#ifndef MKSH_SMALL
-static char *macroptr; /* bind key macro active? */
-#endif
-#if !MKSH_S_NOVI
-static int winwidth; /* width of window */
-static char *wbuf[2]; /* window buffers */
-static int wbuf_len; /* length of window buffers (x_cols - 3) */
-static int win; /* window buffer in use */
-static char morec; /* more character at right of window */
-static int lastref; /* argument to last refresh() */
-static int holdlen; /* length of holdbuf */
-#endif
-static int pwidth; /* width of prompt */
-static int prompt_trunc; /* how much of prompt to truncate or -1 */
-static int x_col; /* current column on line */
-
-static int x_ins(const char *);
-static void x_delete(size_t, bool);
-static size_t x_bword(void);
-static size_t x_fword(bool);
-static void x_goto(char *);
-static char *x_bs0(char *, char *);
-static void x_bs3(char **);
-static int x_size_str(char *);
-static int x_size2(char *, char **);
-static void x_zots(char *);
-static void x_zotc2(int);
-static void x_zotc3(char **);
-static void x_load_hist(char **);
-static int x_search(char *, int, int);
-#ifndef MKSH_SMALL
-static int x_search_dir(int);
-#endif
-static int x_match(char *, char *);
-static void x_redraw(int);
-static void x_push(int);
-static char *x_mapin(const char *, Area *);
-static char *x_mapout(int);
-static void x_mapout2(int, char **);
-static void x_print(int, int);
-static void x_adjust(void);
-static void x_e_ungetc(int);
-static int x_e_getc(void);
-static void x_e_putc2(int);
-static void x_e_putc3(const char **);
-static void x_e_puts(const char *);
-#ifndef MKSH_SMALL
-static int x_fold_case(int);
-#endif
-static char *x_lastcp(void);
-static void do_complete(int, Comp_type);
-static size_t x_nb2nc(size_t);
-
-static int unget_char = -1;
-
-static int x_do_ins(const char *, size_t);
-static void bind_if_not_bound(int, int, int);
-
-enum emacs_funcs {
-#define EMACSFN_ENUMS
-#include "emacsfn.h"
- XFUNC_MAX
-};
-
-#define EMACSFN_DEFNS
-#include "emacsfn.h"
-
-static const struct x_ftab x_ftab[] = {
-#define EMACSFN_ITEMS
-#include "emacsfn.h"
- { 0, NULL, 0 }
-};
-
-static struct x_defbindings const x_defbindings[] = {
- { XFUNC_del_back, 0, CTRL('?') },
- { XFUNC_del_bword, 1, CTRL('?') },
- { XFUNC_eot_del, 0, CTRL('D') },
- { XFUNC_del_back, 0, CTRL('H') },
- { XFUNC_del_bword, 1, CTRL('H') },
- { XFUNC_del_bword, 1, 'h' },
- { XFUNC_mv_bword, 1, 'b' },
- { XFUNC_mv_fword, 1, 'f' },
- { XFUNC_del_fword, 1, 'd' },
- { XFUNC_mv_back, 0, CTRL('B') },
- { XFUNC_mv_forw, 0, CTRL('F') },
- { XFUNC_search_char_forw, 0, CTRL(']') },
- { XFUNC_search_char_back, 1, CTRL(']') },
- { XFUNC_newline, 0, CTRL('M') },
- { XFUNC_newline, 0, CTRL('J') },
- { XFUNC_end_of_text, 0, CTRL('_') },
- { XFUNC_abort, 0, CTRL('G') },
- { XFUNC_prev_com, 0, CTRL('P') },
- { XFUNC_next_com, 0, CTRL('N') },
- { XFUNC_nl_next_com, 0, CTRL('O') },
- { XFUNC_search_hist, 0, CTRL('R') },
- { XFUNC_beg_hist, 1, '<' },
- { XFUNC_end_hist, 1, '>' },
- { XFUNC_goto_hist, 1, 'g' },
- { XFUNC_mv_end, 0, CTRL('E') },
- { XFUNC_mv_begin, 0, CTRL('A') },
- { XFUNC_draw_line, 0, CTRL('L') },
- { XFUNC_cls, 1, CTRL('L') },
- { XFUNC_meta1, 0, CTRL('[') },
- { XFUNC_meta2, 0, CTRL('X') },
- { XFUNC_kill, 0, CTRL('K') },
- { XFUNC_yank, 0, CTRL('Y') },
- { XFUNC_meta_yank, 1, 'y' },
- { XFUNC_literal, 0, CTRL('^') },
- { XFUNC_comment, 1, '#' },
- { XFUNC_transpose, 0, CTRL('T') },
- { XFUNC_complete, 1, CTRL('[') },
- { XFUNC_comp_list, 0, CTRL('I') },
- { XFUNC_comp_list, 1, '=' },
- { XFUNC_enumerate, 1, '?' },
- { XFUNC_expand, 1, '*' },
- { XFUNC_comp_file, 1, CTRL('X') },
- { XFUNC_comp_comm, 2, CTRL('[') },
- { XFUNC_list_comm, 2, '?' },
- { XFUNC_list_file, 2, CTRL('Y') },
- { XFUNC_set_mark, 1, ' ' },
- { XFUNC_kill_region, 0, CTRL('W') },
- { XFUNC_xchg_point_mark, 2, CTRL('X') },
- { XFUNC_literal, 0, CTRL('V') },
- { XFUNC_version, 1, CTRL('V') },
- { XFUNC_prev_histword, 1, '.' },
- { XFUNC_prev_histword, 1, '_' },
- { XFUNC_set_arg, 1, '0' },
- { XFUNC_set_arg, 1, '1' },
- { XFUNC_set_arg, 1, '2' },
- { XFUNC_set_arg, 1, '3' },
- { XFUNC_set_arg, 1, '4' },
- { XFUNC_set_arg, 1, '5' },
- { XFUNC_set_arg, 1, '6' },
- { XFUNC_set_arg, 1, '7' },
- { XFUNC_set_arg, 1, '8' },
- { XFUNC_set_arg, 1, '9' },
-#ifndef MKSH_SMALL
- { XFUNC_fold_upper, 1, 'U' },
- { XFUNC_fold_upper, 1, 'u' },
- { XFUNC_fold_lower, 1, 'L' },
- { XFUNC_fold_lower, 1, 'l' },
- { XFUNC_fold_capitalise, 1, 'C' },
- { XFUNC_fold_capitalise, 1, 'c' },
-#endif
- /*
- * These for ANSI arrow keys: arguablely shouldn't be here by
- * default, but its simpler/faster/smaller than using termcap
- * entries.
- */
- { XFUNC_meta2, 1, '[' },
- { XFUNC_meta2, 1, 'O' },
- { XFUNC_prev_com, 2, 'A' },
- { XFUNC_next_com, 2, 'B' },
- { XFUNC_mv_forw, 2, 'C' },
- { XFUNC_mv_back, 2, 'D' },
-#ifndef MKSH_SMALL
- { XFUNC_vt_hack, 2, '1' },
- { XFUNC_mv_begin | 0x80, 2, '7' },
- { XFUNC_mv_begin, 2, 'H' },
- { XFUNC_mv_end | 0x80, 2, '4' },
- { XFUNC_mv_end | 0x80, 2, '8' },
- { XFUNC_mv_end, 2, 'F' },
- { XFUNC_del_char | 0x80, 2, '3' },
- { XFUNC_search_hist_up | 0x80, 2, '5' },
- { XFUNC_search_hist_dn | 0x80, 2, '6' },
- /* more non-standard ones */
- { XFUNC_edit_line, 2, 'e' }
-#endif
-};
-
-static size_t
-x_nb2nc(size_t nb)
-{
- char *cp;
- size_t nc = 0;
-
- for (cp = xcp; cp < (xcp + nb); ++nc)
- cp += utf_ptradj(cp);
- return (nc);
-}
-
-static void
-x_modified(void)
-{
- if (!modified) {
- x_histp = histptr + 1;
- modified = 1;
- }
-}
-
-#ifdef MKSH_SMALL
-#define XFUNC_VALUE(f) (f)
-#else
-#define XFUNC_VALUE(f) (f & 0x7F)
-#endif
-
-static int
-x_e_getmbc(char *sbuf)
-{
- int c, pos = 0;
- unsigned char *buf = (unsigned char *)sbuf;
-
- memset(buf, 0, 4);
- buf[pos++] = c = x_e_getc();
- if (c == -1)
- return (-1);
- if (UTFMODE) {
- if ((buf[0] >= 0xC2) && (buf[0] < 0xF0)) {
- c = x_e_getc();
- if (c == -1)
- return (-1);
- if ((c & 0xC0) != 0x80) {
- x_e_ungetc(c);
- return (1);
- }
- buf[pos++] = c;
- }
- if ((buf[0] >= 0xE0) && (buf[0] < 0xF0)) {
- /* XXX x_e_ungetc is one-octet only */
- buf[pos++] = c = x_e_getc();
- if (c == -1)
- return (-1);
- }
- }
- return (pos);
-}
-
-static void
-x_init_prompt(void)
-{
- prompt_trunc = pprompt(prompt, 0);
- pwidth = prompt_trunc % x_cols;
- prompt_trunc -= pwidth;
- if ((mksh_uari_t)pwidth > ((mksh_uari_t)x_cols - 3 - MIN_EDIT_SPACE)) {
- /* force newline after prompt */
- prompt_trunc = -1;
- pwidth = 0;
- x_e_putc2('\n');
- }
-}
-
-static int
-x_emacs(char *buf)
-{
- int c, i;
- unsigned char f;
-
- xbp = xbuf = buf;
- xend = buf + LINE;
- xlp = xcp = xep = buf;
- *xcp = 0;
- xlp_valid = true;
- xmp = NULL;
- x_curprefix = 0;
- x_histp = histptr + 1;
- x_last_command = XFUNC_error;
-
- x_init_prompt();
- x_displen = (xx_cols = x_cols) - 2 - (x_col = pwidth);
- x_adj_done = 0;
- x_adj_ok = true;
-
- x_histncp = NULL;
- if (x_nextcmd >= 0) {
- int off = source->line - x_nextcmd;
- if (histptr - history >= off) {
- x_load_hist(histptr - off);
- x_histncp = x_histp;
- }
- x_nextcmd = -1;
- }
- editmode = 1;
- while (/* CONSTCOND */ 1) {
- x_flush();
- if ((c = x_e_getc()) < 0)
- return (0);
-
- f = x_curprefix == -1 ? XFUNC_insert :
- x_tab[x_curprefix][c];
-#ifndef MKSH_SMALL
- if (f & 0x80) {
- f &= 0x7F;
- if ((i = x_e_getc()) != '~')
- x_e_ungetc(i);
- }
-
- /* avoid bind key macro recursion */
- if (macroptr && f == XFUNC_ins_string)
- f = XFUNC_insert;
-#endif
-
- if (!(x_ftab[f].xf_flags & XF_PREFIX) &&
- x_last_command != XFUNC_set_arg) {
- x_arg = 1;
- x_arg_defaulted = true;
- }
- i = c | (x_curprefix << 8);
- x_curprefix = 0;
- switch ((*x_ftab[f].xf_func)(i)) {
- case KSTD:
- if (!(x_ftab[f].xf_flags & XF_PREFIX))
- x_last_command = f;
- break;
- case KEOL:
- i = xep - xbuf;
- return (i);
- case KINTR:
- /* special case for interrupt */
- trapsig(SIGINT);
- x_mode(false);
- unwind(LSHELL);
- }
- /* ad-hoc hack for fixing the cursor position */
- x_goto(xcp);
- }
-}
-
-static int
-x_insert(int c)
-{
- static int left, pos, save_arg;
- static char str[4];
-
- /*
- * Should allow tab and control chars.
- */
- if (c == 0) {
- invmbs:
- left = 0;
- x_e_putc2(7);
- return (KSTD);
- }
- if (UTFMODE) {
- if (((c & 0xC0) == 0x80) && left) {
- str[pos++] = c;
- if (!--left) {
- str[pos] = '\0';
- x_arg = save_arg;
- while (x_arg--)
- x_ins(str);
- }
- return (KSTD);
- }
- if (left) {
- if (x_curprefix == -1) {
- /* flush invalid multibyte */
- str[pos] = '\0';
- while (save_arg--)
- x_ins(str);
- }
- }
- if ((c >= 0xC2) && (c < 0xE0))
- left = 1;
- else if ((c >= 0xE0) && (c < 0xF0))
- left = 2;
- else if (c > 0x7F)
- goto invmbs;
- else
- left = 0;
- if (left) {
- save_arg = x_arg;
- pos = 1;
- str[0] = c;
- return (KSTD);
- }
- }
- left = 0;
- str[0] = c;
- str[1] = '\0';
- while (x_arg--)
- x_ins(str);
- return (KSTD);
-}
-
-#ifndef MKSH_SMALL
-static int
-x_ins_string(int c)
-{
- macroptr = x_atab[c >> 8][c & 255];
- /*
- * we no longer need to bother checking if macroptr is
- * not NULL but first char is NUL; x_e_getc() does it
- */
- return (KSTD);
-}
-#endif
-
-static int
-x_do_ins(const char *cp, size_t len)
-{
- if (xep + len >= xend) {
- x_e_putc2(7);
- return (-1);
- }
- memmove(xcp + len, xcp, xep - xcp + 1);
- memmove(xcp, cp, len);
- xcp += len;
- xep += len;
- x_modified();
- return (0);
-}
-
-static int
-x_ins(const char *s)
-{
- char *cp = xcp;
- int adj = x_adj_done;
-
- if (x_do_ins(s, strlen(s)) < 0)
- return (-1);
- /*
- * x_zots() may result in a call to x_adjust()
- * we want xcp to reflect the new position.
- */
- xlp_valid = false;
- x_lastcp();
- x_adj_ok = tobool(xcp >= xlp);
- x_zots(cp);
- /* has x_adjust() been called? */
- if (adj == x_adj_done) {
- /* no */
- cp = xlp;
- while (cp > xcp)
- x_bs3(&cp);
- }
- if (xlp == xep - 1)
- x_redraw(xx_cols);
- x_adj_ok = true;
- return (0);
-}
-
-static int
-x_del_back(int c MKSH_A_UNUSED)
-{
- ssize_t i = 0;
-
- if (xcp == xbuf) {
- x_e_putc2(7);
- return (KSTD);
- }
- do {
- x_goto(xcp - 1);
- } while ((++i < x_arg) && (xcp != xbuf));
- x_delete(i, false);
- return (KSTD);
-}
-
-static int
-x_del_char(int c MKSH_A_UNUSED)
-{
- char *cp, *cp2;
- size_t i = 0;
-
- cp = xcp;
- while (i < (size_t)x_arg) {
- utf_ptradjx(cp, cp2);
- if (cp2 > xep)
- break;
- cp = cp2;
- i++;
- }
-
- if (!i) {
- x_e_putc2(7);
- return (KSTD);
- }
- x_delete(i, false);
- return (KSTD);
-}
-
-/* Delete nc chars to the right of the cursor (including cursor position) */
-static void
-x_delete(size_t nc, bool push)
-{
- size_t i, nb, nw;
- char *cp;
-
- if (nc == 0)
- return;
-
- nw = 0;
- cp = xcp;
- for (i = 0; i < nc; ++i) {
- char *cp2;
- int j;
-
- j = x_size2(cp, &cp2);
- if (cp2 > xep)
- break;
- cp = cp2;
- nw += j;
- }
- nb = cp - xcp;
- /* nc = i; */
-
- if (xmp != NULL && xmp > xcp) {
- if (xcp + nb > xmp)
- xmp = xcp;
- else
- xmp -= nb;
- }
- /*
- * This lets us yank a word we have deleted.
- */
- if (push)
- x_push(nb);
-
- xep -= nb;
- /* Copies the NUL */
- memmove(xcp, xcp + nb, xep - xcp + 1);
- /* don't redraw */
- x_adj_ok = false;
- xlp_valid = false;
- x_zots(xcp);
- /*
- * if we are already filling the line,
- * there is no need to ' ', '\b'.
- * But if we must, make sure we do the minimum.
- */
- if ((i = xx_cols - 2 - x_col) > 0 || xep - xlp == 0) {
- nw = i = (nw < i) ? nw : i;
- while (i--)
- x_e_putc2(' ');
- if (x_col == xx_cols - 2) {
- x_e_putc2((xep > xlp) ? '>' : (xbp > xbuf) ? '<' : ' ');
- ++nw;
- }
- while (nw--)
- x_e_putc2('\b');
- }
- /*x_goto(xcp);*/
- x_adj_ok = true;
- xlp_valid = false;
- cp = x_lastcp();
- while (cp > xcp)
- x_bs3(&cp);
-
- x_modified();
- return;
-}
-
-static int
-x_del_bword(int c MKSH_A_UNUSED)
-{
- x_delete(x_bword(), true);
- return (KSTD);
-}
-
-static int
-x_mv_bword(int c MKSH_A_UNUSED)
-{
- x_bword();
- return (KSTD);
-}
-
-static int
-x_mv_fword(int c MKSH_A_UNUSED)
-{
- x_fword(true);
- return (KSTD);
-}
-
-static int
-x_del_fword(int c MKSH_A_UNUSED)
-{
- x_delete(x_fword(false), true);
- return (KSTD);
-}
-
-static size_t
-x_bword(void)
-{
- size_t nb = 0;
- char *cp = xcp;
-
- if (cp == xbuf) {
- x_e_putc2(7);
- return (0);
- }
- while (x_arg--) {
- while (cp != xbuf && is_mfs(cp[-1])) {
- cp--;
- nb++;
- }
- while (cp != xbuf && !is_mfs(cp[-1])) {
- cp--;
- nb++;
- }
- }
- x_goto(cp);
- return (x_nb2nc(nb));
-}
-
-static size_t
-x_fword(bool move)
-{
- size_t nc;
- char *cp = xcp;
-
- if (cp == xep) {
- x_e_putc2(7);
- return (0);
- }
- while (x_arg--) {
- while (cp != xep && is_mfs(*cp))
- cp++;
- while (cp != xep && !is_mfs(*cp))
- cp++;
- }
- nc = x_nb2nc(cp - xcp);
- if (move)
- x_goto(cp);
- return (nc);
-}
-
-static void
-x_goto(char *cp)
-{
- cp = cp >= xep ? xep : x_bs0(cp, xbuf);
- if (cp < xbp || cp >= utf_skipcols(xbp, x_displen)) {
- /* we are heading off screen */
- xcp = cp;
- x_adjust();
- } else if (cp < xcp) {
- /* move back */
- while (cp < xcp)
- x_bs3(&xcp);
- } else if (cp > xcp) {
- /* move forward */
- while (cp > xcp)
- x_zotc3(&xcp);
- }
-}
-
-static char *
-x_bs0(char *cp, char *lower_bound)
-{
- if (UTFMODE)
- while ((!lower_bound || (cp > lower_bound)) &&
- ((*(unsigned char *)cp & 0xC0) == 0x80))
- --cp;
- return (cp);
-}
-
-static void
-x_bs3(char **p)
-{
- int i;
-
- *p = x_bs0((*p) - 1, NULL);
- i = x_size2(*p, NULL);
- while (i--)
- x_e_putc2('\b');
-}
-
-static int
-x_size_str(char *cp)
-{
- int size = 0;
- while (*cp)
- size += x_size2(cp, &cp);
- return (size);
-}
-
-static int
-x_size2(char *cp, char **dcp)
-{
- int c = *(unsigned char *)cp;
-
- if (UTFMODE && (c > 0x7F))
- return (utf_widthadj(cp, (const char **)dcp));
- if (dcp)
- *dcp = cp + 1;
- if (c == '\t')
- /* Kludge, tabs are always four spaces. */
- return (4);
- if (c < ' ' || c == 0x7f)
- /* control unsigned char */
- return (2);
- return (1);
-}
-
-static void
-x_zots(char *str)
-{
- int adj = x_adj_done;
-
- x_lastcp();
- while (*str && str < xlp && adj == x_adj_done)
- x_zotc3(&str);
-}
-
-static void
-x_zotc2(int c)
-{
- if (c == '\t') {
- /* Kludge, tabs are always four spaces. */
- x_e_puts(" ");
- } else if (c < ' ' || c == 0x7f) {
- x_e_putc2('^');
- x_e_putc2(UNCTRL(c));
- } else
- x_e_putc2(c);
-}
-
-static void
-x_zotc3(char **cp)
-{
- unsigned char c = **(unsigned char **)cp;
-
- if (c == '\t') {
- /* Kludge, tabs are always four spaces. */
- x_e_puts(" ");
- (*cp)++;
- } else if (c < ' ' || c == 0x7f) {
- x_e_putc2('^');
- x_e_putc2(UNCTRL(c));
- (*cp)++;
- } else
- x_e_putc3((const char **)cp);
-}
-
-static int
-x_mv_back(int c MKSH_A_UNUSED)
-{
- if (xcp == xbuf) {
- x_e_putc2(7);
- return (KSTD);
- }
- while (x_arg--) {
- x_goto(xcp - 1);
- if (xcp == xbuf)
- break;
- }
- return (KSTD);
-}
-
-static int
-x_mv_forw(int c MKSH_A_UNUSED)
-{
- char *cp = xcp, *cp2;
-
- if (xcp == xep) {
- x_e_putc2(7);
- return (KSTD);
- }
- while (x_arg--) {
- utf_ptradjx(cp, cp2);
- if (cp2 > xep)
- break;
- cp = cp2;
- }
- x_goto(cp);
- return (KSTD);
-}
-
-static int
-x_search_char_forw(int c MKSH_A_UNUSED)
-{
- char *cp = xcp;
- char tmp[4];
-
- *xep = '\0';
- if (x_e_getmbc(tmp) < 0) {
- x_e_putc2(7);
- return (KSTD);
- }
- while (x_arg--) {
- if ((cp = (cp == xep) ? NULL : strstr(cp + 1, tmp)) == NULL &&
- (cp = strstr(xbuf, tmp)) == NULL) {
- x_e_putc2(7);
- return (KSTD);
- }
- }
- x_goto(cp);
- return (KSTD);
-}
-
-static int
-x_search_char_back(int c MKSH_A_UNUSED)
-{
- char *cp = xcp, *p, tmp[4];
- bool b;
-
- if (x_e_getmbc(tmp) < 0) {
- x_e_putc2(7);
- return (KSTD);
- }
- for (; x_arg--; cp = p)
- for (p = cp; ; ) {
- if (p-- == xbuf)
- p = xep;
- if (p == cp) {
- x_e_putc2(7);
- return (KSTD);
- }
- if ((tmp[1] && ((p+1) > xep)) ||
- (tmp[2] && ((p+2) > xep)))
- continue;
- b = true;
- if (*p != tmp[0])
- b = false;
- if (b && tmp[1] && p[1] != tmp[1])
- b = false;
- if (b && tmp[2] && p[2] != tmp[2])
- b = false;
- if (b)
- break;
- }
- x_goto(cp);
- return (KSTD);
-}
-
-static int
-x_newline(int c MKSH_A_UNUSED)
-{
- x_e_putc2('\r');
- x_e_putc2('\n');
- x_flush();
- *xep++ = '\n';
- return (KEOL);
-}
-
-static int
-x_end_of_text(int c MKSH_A_UNUSED)
-{
- x_zotc2(edchars.eof);
- x_putc('\r');
- x_putc('\n');
- x_flush();
- return (KEOL);
-}
-
-static int
-x_beg_hist(int c MKSH_A_UNUSED)
-{
- x_load_hist(history);
- return (KSTD);
-}
-
-static int
-x_end_hist(int c MKSH_A_UNUSED)
-{
- x_load_hist(histptr);
- return (KSTD);
-}
-
-static int
-x_prev_com(int c MKSH_A_UNUSED)
-{
- x_load_hist(x_histp - x_arg);
- return (KSTD);
-}
-
-static int
-x_next_com(int c MKSH_A_UNUSED)
-{
- x_load_hist(x_histp + x_arg);
- return (KSTD);
-}
-
-/*
- * Goto a particular history number obtained from argument.
- * If no argument is given history 1 is probably not what you
- * want so we'll simply go to the oldest one.
- */
-static int
-x_goto_hist(int c MKSH_A_UNUSED)
-{
- if (x_arg_defaulted)
- x_load_hist(history);
- else
- x_load_hist(histptr + x_arg - source->line);
- return (KSTD);
-}
-
-static void
-x_load_hist(char **hp)
-{
- int oldsize;
- char *sp = NULL;
-
- if (hp == histptr + 1) {
- sp = holdbufp;
- modified = 0;
- } else if (hp < history || hp > histptr) {
- x_e_putc2(7);
- return;
- }
- if (sp == NULL)
- sp = *hp;
- x_histp = hp;
- oldsize = x_size_str(xbuf);
- if (modified)
- strlcpy(holdbufp, xbuf, LINE);
- strlcpy(xbuf, sp, xend - xbuf);
- xbp = xbuf;
- xep = xcp = xbuf + strlen(xbuf);
- xlp_valid = false;
- if (xep <= x_lastcp()) {
- x_redraw(oldsize);
- }
- x_goto(xep);
- modified = 0;
-}
-
-static int
-x_nl_next_com(int c MKSH_A_UNUSED)
-{
- if (!x_histncp || (x_histp != x_histncp && x_histp != histptr + 1))
- /* fresh start of ^O */
- x_histncp = x_histp;
- x_nextcmd = source->line - (histptr - x_histncp) + 1;
- return (x_newline('\n'));
-}
-
-static int
-x_eot_del(int c)
-{
- if (xep == xbuf && x_arg_defaulted)
- return (x_end_of_text(c));
- else
- return (x_del_char(c));
-}
-
-/* reverse incremental history search */
-static int
-x_search_hist(int c)
-{
- int offset = -1; /* offset of match in xbuf, else -1 */
- char pat[80 + 1]; /* pattern buffer */
- char *p = pat;
- unsigned char f;
-
- *p = '\0';
- while (/* CONSTCOND */ 1) {
- if (offset < 0) {
- x_e_puts("\nI-search: ");
- x_e_puts(pat);
- }
- x_flush();
- if ((c = x_e_getc()) < 0)
- return (KSTD);
- f = x_tab[0][c];
- if (c == CTRL('[')) {
- if ((f & 0x7F) == XFUNC_meta1) {
- if ((c = x_e_getc()) < 0)
- return (KSTD);
- f = x_tab[1][c] & 0x7F;
- if (f == XFUNC_meta1 || f == XFUNC_meta2)
- x_meta1(CTRL('['));
- x_e_ungetc(c);
- }
- break;
- }
-#ifndef MKSH_SMALL
- if (f & 0x80) {
- f &= 0x7F;
- if ((c = x_e_getc()) != '~')
- x_e_ungetc(c);
- }
-#endif
- if (f == XFUNC_search_hist)
- offset = x_search(pat, 0, offset);
- else if (f == XFUNC_del_back) {
- if (p == pat) {
- offset = -1;
- break;
- }
- if (p > pat)
- *--p = '\0';
- if (p == pat)
- offset = -1;
- else
- offset = x_search(pat, 1, offset);
- continue;
- } else if (f == XFUNC_insert) {
- /* add char to pattern */
- /* overflow check... */
- if ((size_t)(p - pat) >= sizeof(pat) - 1) {
- x_e_putc2(7);
- continue;
- }
- *p++ = c, *p = '\0';
- if (offset >= 0) {
- /* already have partial match */
- offset = x_match(xbuf, pat);
- if (offset >= 0) {
- x_goto(xbuf + offset + (p - pat) -
- (*pat == '^'));
- continue;
- }
- }
- offset = x_search(pat, 0, offset);
- } else if (f == XFUNC_abort) {
- if (offset >= 0)
- x_load_hist(histptr + 1);
- break;
- } else {
- /* other command */
- x_e_ungetc(c);
- break;
- }
- }
- if (offset < 0)
- x_redraw(-1);
- return (KSTD);
-}
-
-/* search backward from current line */
-static int
-x_search(char *pat, int sameline, int offset)
-{
- char **hp;
- int i;
-
- for (hp = x_histp - (sameline ? 0 : 1); hp >= history; --hp) {
- i = x_match(*hp, pat);
- if (i >= 0) {
- if (offset < 0)
- x_e_putc2('\n');
- x_load_hist(hp);
- x_goto(xbuf + i + strlen(pat) - (*pat == '^'));
- return (i);
- }
- }
- x_e_putc2(7);
- x_histp = histptr;
- return (-1);
-}
-
-#ifndef MKSH_SMALL
-/* anchored search up from current line */
-static int
-x_search_hist_up(int c MKSH_A_UNUSED)
-{
- return (x_search_dir(-1));
-}
-
-/* anchored search down from current line */
-static int
-x_search_hist_dn(int c MKSH_A_UNUSED)
-{
- return (x_search_dir(1));
-}
-
-/* anchored search in the indicated direction */
-static int
-x_search_dir(int search_dir /* should've been bool */)
-{
- char **hp = x_histp + search_dir;
- size_t curs = xcp - xbuf;
-
- while (histptr >= hp && hp >= history) {
- if (strncmp(xbuf, *hp, curs) == 0) {
- x_load_hist(hp);
- x_goto(xbuf + curs);
- break;
- }
- hp += search_dir;
- }
- return (KSTD);
-}
-#endif
-
-/* return position of first match of pattern in string, else -1 */
-static int
-x_match(char *str, char *pat)
-{
- if (*pat == '^') {
- return ((strncmp(str, pat + 1, strlen(pat + 1)) == 0) ? 0 : -1);
- } else {
- char *q = strstr(str, pat);
- return ((q == NULL) ? -1 : q - str);
- }
-}
-
-static int
-x_del_line(int c MKSH_A_UNUSED)
-{
- int i, j;
-
- *xep = 0;
- i = xep - xbuf;
- j = x_size_str(xbuf);
- xcp = xbuf;
- x_push(i);
- xlp = xbp = xep = xbuf;
- xlp_valid = true;
- *xcp = 0;
- xmp = NULL;
- x_redraw(j);
- x_modified();
- return (KSTD);
-}
-
-static int
-x_mv_end(int c MKSH_A_UNUSED)
-{
- x_goto(xep);
- return (KSTD);
-}
-
-static int
-x_mv_begin(int c MKSH_A_UNUSED)
-{
- x_goto(xbuf);
- return (KSTD);
-}
-
-static int
-x_draw_line(int c MKSH_A_UNUSED)
-{
- x_redraw(-1);
- return (KSTD);
-}
-
-static int
-x_e_rebuildline(const char *clrstr)
-{
- shf_puts(clrstr, shl_out);
- x_adjust();
- return (KSTD);
-}
-
-static int
-x_cls(int c MKSH_A_UNUSED)
-{
- return (x_e_rebuildline(MKSH_CLS_STRING));
-}
-
-/*
- * Redraw (part of) the line. If limit is < 0, the everything is redrawn
- * on a NEW line, otherwise limit is the screen column up to which needs
- * redrawing.
- */
-static void
-x_redraw(int limit)
-{
- int i, j;
- char *cp;
-
- x_adj_ok = false;
- if (limit == -1)
- x_e_putc2('\n');
- else
- x_e_putc2('\r');
- x_flush();
- if (xbp == xbuf) {
- if (prompt_trunc != -1)
- pprompt(prompt, prompt_trunc);
- x_col = pwidth;
- }
- x_displen = xx_cols - 2 - x_col;
- xlp_valid = false;
- x_zots(xbp);
- if (xbp != xbuf || xep > xlp)
- limit = xx_cols;
- if (limit >= 0) {
- if (xep > xlp)
- /* we fill the line */
- i = 0;
- else {
- char *cpl = xbp;
-
- i = limit;
- while (cpl < xlp)
- i -= x_size2(cpl, &cpl);
- }
-
- j = 0;
- while ((j < i) || (x_col < (xx_cols - 2))) {
- if (!(x_col < (xx_cols - 2)))
- break;
- x_e_putc2(' ');
- j++;
- }
- i = ' ';
- if (xep > xlp) {
- /* more off screen */
- if (xbp > xbuf)
- i = '*';
- else
- i = '>';
- } else if (xbp > xbuf)
- i = '<';
- x_e_putc2(i);
- j++;
- while (j--)
- x_e_putc2('\b');
- }
- cp = xlp;
- while (cp > xcp)
- x_bs3(&cp);
- x_adj_ok = true;
- return;
-}
-
-static int
-x_transpose(int c MKSH_A_UNUSED)
-{
- unsigned int tmpa, tmpb;
-
- /*-
- * What transpose is meant to do seems to be up for debate. This
- * is a general summary of the options; the text is abcd with the
- * upper case character or underscore indicating the cursor position:
- * Who Before After Before After
- * AT&T ksh in emacs mode: abCd abdC abcd_ (bell)
- * AT&T ksh in gmacs mode: abCd baCd abcd_ abdc_
- * gnu emacs: abCd acbD abcd_ abdc_
- * Pdksh currently goes with GNU behavior since I believe this is the
- * most common version of emacs, unless in gmacs mode, in which case
- * it does the AT&T ksh gmacs mode.
- * This should really be broken up into 3 functions so users can bind
- * to the one they want.
- */
- if (xcp == xbuf) {
- x_e_putc2(7);
- return (KSTD);
- } else if (xcp == xep || Flag(FGMACS)) {
- if (xcp - xbuf == 1) {
- x_e_putc2(7);
- return (KSTD);
- }
- /*
- * Gosling/Unipress emacs style: Swap two characters before
- * the cursor, do not change cursor position
- */
- x_bs3(&xcp);
- if (utf_mbtowc(&tmpa, xcp) == (size_t)-1) {
- x_e_putc2(7);
- return (KSTD);
- }
- x_bs3(&xcp);
- if (utf_mbtowc(&tmpb, xcp) == (size_t)-1) {
- x_e_putc2(7);
- return (KSTD);
- }
- utf_wctomb(xcp, tmpa);
- x_zotc3(&xcp);
- utf_wctomb(xcp, tmpb);
- x_zotc3(&xcp);
- } else {
- /*
- * GNU emacs style: Swap the characters before and under the
- * cursor, move cursor position along one.
- */
- if (utf_mbtowc(&tmpa, xcp) == (size_t)-1) {
- x_e_putc2(7);
- return (KSTD);
- }
- x_bs3(&xcp);
- if (utf_mbtowc(&tmpb, xcp) == (size_t)-1) {
- x_e_putc2(7);
- return (KSTD);
- }
- utf_wctomb(xcp, tmpa);
- x_zotc3(&xcp);
- utf_wctomb(xcp, tmpb);
- x_zotc3(&xcp);
- }
- x_modified();
- return (KSTD);
-}
-
-static int
-x_literal(int c MKSH_A_UNUSED)
-{
- x_curprefix = -1;
- return (KSTD);
-}
-
-static int
-x_meta1(int c MKSH_A_UNUSED)
-{
- x_curprefix = 1;
- return (KSTD);
-}
-
-static int
-x_meta2(int c MKSH_A_UNUSED)
-{
- x_curprefix = 2;
- return (KSTD);
-}
-
-static int
-x_kill(int c MKSH_A_UNUSED)
-{
- size_t col = xcp - xbuf;
- size_t lastcol = xep - xbuf;
- size_t ndel, narg;
-
- if (x_arg_defaulted || (narg = x_arg) > lastcol)
- narg = lastcol;
- if (narg < col) {
- x_goto(xbuf + narg);
- ndel = col - narg;
- } else
- ndel = narg - col;
- x_delete(x_nb2nc(ndel), true);
- return (KSTD);
-}
-
-static void
-x_push(int nchars)
-{
- char *cp;
-
- mkssert(xcp != NULL);
- strndupx(cp, xcp, nchars, AEDIT);
- if (killstack[killsp])
- afree(killstack[killsp], AEDIT);
- killstack[killsp] = cp;
- killsp = (killsp + 1) % KILLSIZE;
-}
-
-static int
-x_yank(int c MKSH_A_UNUSED)
-{
- if (killsp == 0)
- killtp = KILLSIZE;
- else
- killtp = killsp;
- killtp--;
- if (killstack[killtp] == 0) {
- x_e_puts("\nnothing to yank");
- x_redraw(-1);
- return (KSTD);
- }
- xmp = xcp;
- x_ins(killstack[killtp]);
- return (KSTD);
-}
-
-static int
-x_meta_yank(int c MKSH_A_UNUSED)
-{
- size_t len;
-
- if ((x_last_command != XFUNC_yank && x_last_command != XFUNC_meta_yank) ||
- killstack[killtp] == 0) {
- killtp = killsp;
- x_e_puts("\nyank something first");
- x_redraw(-1);
- return (KSTD);
- }
- len = strlen(killstack[killtp]);
- x_goto(xcp - len);
- x_delete(x_nb2nc(len), false);
- do {
- if (killtp == 0)
- killtp = KILLSIZE - 1;
- else
- killtp--;
- } while (killstack[killtp] == 0);
- x_ins(killstack[killtp]);
- return (KSTD);
-}
-
-static int
-x_abort(int c MKSH_A_UNUSED)
-{
- /* x_zotc(c); */
- xlp = xep = xcp = xbp = xbuf;
- xlp_valid = true;
- *xcp = 0;
- x_modified();
- return (KINTR);
-}
-
-static int
-x_error(int c MKSH_A_UNUSED)
-{
- x_e_putc2(7);
- return (KSTD);
-}
-
-#ifndef MKSH_SMALL
-/* special VT100 style key sequence hack */
-static int
-x_vt_hack(int c)
-{
- /* we only support PF2-'1' for now */
- if (c != (2 << 8 | '1'))
- return (x_error(c));
-
- /* what's the next character? */
- switch ((c = x_e_getc())) {
- case '~':
- x_arg = 1;
- x_arg_defaulted = true;
- return (x_mv_begin(0));
- case ';':
- /* "interesting" sequence detected */
- break;
- default:
- goto unwind_err;
- }
-
- /* XXX x_e_ungetc is one-octet only */
- if ((c = x_e_getc()) != '5' && c != '3')
- goto unwind_err;
-
- /*-
- * At this point, we have read the following octets so far:
- * - ESC+[ or ESC+O or Ctrl-X (Prefix 2)
- * - 1 (vt_hack)
- * - ;
- * - 5 (Ctrl key combiner) or 3 (Alt key combiner)
- * We can now accept one more octet designating the key.
- */
-
- switch ((c = x_e_getc())) {
- case 'C':
- return (x_mv_fword(c));
- case 'D':
- return (x_mv_bword(c));
- }
-
- unwind_err:
- x_e_ungetc(c);
- return (x_error(c));
-}
-#endif
-
-static char *
-x_mapin(const char *cp, Area *ap)
-{
- char *news, *op;
-
- strdupx(news, cp, ap);
- op = news;
- while (*cp) {
- /* XXX -- should handle \^ escape? */
- if (*cp == '^') {
- cp++;
- if (*cp >= '?')
- /* includes '?'; ASCII */
- *op++ = CTRL(*cp);
- else {
- *op++ = '^';
- cp--;
- }
- } else
- *op++ = *cp;
- cp++;
- }
- *op = '\0';
-
- return (news);
-}
-
-static void
-x_mapout2(int c, char **buf)
-{
- char *p = *buf;
-
- if (c < ' ' || c == 0x7f) {
- *p++ = '^';
- *p++ = UNCTRL(c);
- } else
- *p++ = c;
- *p = 0;
- *buf = p;
-}
-
-static char *
-x_mapout(int c)
-{
- static char buf[8];
- char *bp = buf;
-
- x_mapout2(c, &bp);
- return (buf);
-}
-
-static void
-x_print(int prefix, int key)
-{
- int f = x_tab[prefix][key];
-
- if (prefix)
- /* prefix == 1 || prefix == 2 */
- shf_puts(x_mapout(prefix == 1 ?
- CTRL('[') : CTRL('X')), shl_stdout);
-#ifdef MKSH_SMALL
- shprintf("%s = ", x_mapout(key));
-#else
- shprintf("%s%s = ", x_mapout(key), (f & 0x80) ? "~" : "");
- if (XFUNC_VALUE(f) != XFUNC_ins_string)
-#endif
- shprintf("%s\n", x_ftab[XFUNC_VALUE(f)].xf_name);
-#ifndef MKSH_SMALL
- else
- shprintf("'%s'\n", x_atab[prefix][key]);
-#endif
-}
-
-int
-x_bind(const char *a1, const char *a2,
-#ifndef MKSH_SMALL
- /* bind -m */
- bool macro,
-#endif
- /* bind -l */
- bool list)
-{
- unsigned char f;
- int prefix, key;
- char *m1, *m2;
-#ifndef MKSH_SMALL
- char *sp = NULL;
- bool hastilde;
-#endif
-
- if (x_tab == NULL) {
- bi_errorf("can't bind, not a tty");
- return (1);
- }
- /* List function names */
- if (list) {
- for (f = 0; f < NELEM(x_ftab); f++)
- if (x_ftab[f].xf_name &&
- !(x_ftab[f].xf_flags & XF_NOBIND))
- shprintf("%s\n", x_ftab[f].xf_name);
- return (0);
- }
- if (a1 == NULL) {
- for (prefix = 0; prefix < X_NTABS; prefix++)
- for (key = 0; key < X_TABSZ; key++) {
- f = XFUNC_VALUE(x_tab[prefix][key]);
- if (f == XFUNC_insert || f == XFUNC_error
-#ifndef MKSH_SMALL
- || (macro && f != XFUNC_ins_string)
-#endif
- )
- continue;
- x_print(prefix, key);
- }
- return (0);
- }
- m2 = m1 = x_mapin(a1, ATEMP);
- prefix = 0;
- for (;; m1++) {
- key = (unsigned char)*m1;
- f = XFUNC_VALUE(x_tab[prefix][key]);
- if (f == XFUNC_meta1)
- prefix = 1;
- else if (f == XFUNC_meta2)
- prefix = 2;
- else
- break;
- }
- if (*++m1
-#ifndef MKSH_SMALL
- && ((*m1 != '~') || *(m1 + 1))
-#endif
- ) {
- char msg[256];
- const char *c = a1;
- m1 = msg;
- while (*c && (size_t)(m1 - msg) < sizeof(msg) - 3)
- x_mapout2(*c++, &m1);
- bi_errorf("%s: %s", "too long key sequence", msg);
- return (1);
- }
-#ifndef MKSH_SMALL
- hastilde = tobool(*m1);
-#endif
- afree(m2, ATEMP);
-
- if (a2 == NULL) {
- x_print(prefix, key);
- return (0);
- }
- if (*a2 == 0) {
- f = XFUNC_insert;
-#ifndef MKSH_SMALL
- } else if (macro) {
- f = XFUNC_ins_string;
- sp = x_mapin(a2, AEDIT);
-#endif
- } else {
- for (f = 0; f < NELEM(x_ftab); f++)
- if (x_ftab[f].xf_name &&
- strcmp(x_ftab[f].xf_name, a2) == 0)
- break;
- if (f == NELEM(x_ftab) || x_ftab[f].xf_flags & XF_NOBIND) {
- bi_errorf("%s: %s %s", a2, "no such", Tfunction);
- return (1);
- }
- }
-
-#ifndef MKSH_SMALL
- if (XFUNC_VALUE(x_tab[prefix][key]) == XFUNC_ins_string &&
- x_atab[prefix][key])
- afree(x_atab[prefix][key], AEDIT);
-#endif
- x_tab[prefix][key] = f
-#ifndef MKSH_SMALL
- | (hastilde ? 0x80 : 0)
-#endif
- ;
-#ifndef MKSH_SMALL
- x_atab[prefix][key] = sp;
-#endif
-
- /* Track what the user has bound so x_mode(true) won't toast things */
- if (f == XFUNC_insert)
- x_bound[(prefix * X_TABSZ + key) / 8] &=
- ~(1 << ((prefix * X_TABSZ + key) % 8));
- else
- x_bound[(prefix * X_TABSZ + key) / 8] |=
- (1 << ((prefix * X_TABSZ + key) % 8));
-
- return (0);
-}
-
-static void
-bind_if_not_bound(int p, int k, int func)
-{
- int t;
-
- /*
- * Has user already bound this key?
- * If so, do not override it.
- */
- t = p * X_TABSZ + k;
- if (x_bound[t >> 3] & (1 << (t & 7)))
- return;
-
- x_tab[p][k] = func;
-}
-
-static int
-x_set_mark(int c MKSH_A_UNUSED)
-{
- xmp = xcp;
- return (KSTD);
-}
-
-static int
-x_kill_region(int c MKSH_A_UNUSED)
-{
- size_t rsize;
- char *xr;
-
- if (xmp == NULL) {
- x_e_putc2(7);
- return (KSTD);
- }
- if (xmp > xcp) {
- rsize = xmp - xcp;
- xr = xcp;
- } else {
- rsize = xcp - xmp;
- xr = xmp;
- }
- x_goto(xr);
- x_delete(x_nb2nc(rsize), true);
- xmp = xr;
- return (KSTD);
-}
-
-static int
-x_xchg_point_mark(int c MKSH_A_UNUSED)
-{
- char *tmp;
-
- if (xmp == NULL) {
- x_e_putc2(7);
- return (KSTD);
- }
- tmp = xmp;
- xmp = xcp;
- x_goto(tmp);
- return (KSTD);
-}
-
-static int
-x_noop(int c MKSH_A_UNUSED)
-{
- return (KSTD);
-}
-
-/*
- * File/command name completion routines
- */
-static int
-x_comp_comm(int c MKSH_A_UNUSED)
-{
- do_complete(XCF_COMMAND, CT_COMPLETE);
- return (KSTD);
-}
-
-static int
-x_list_comm(int c MKSH_A_UNUSED)
-{
- do_complete(XCF_COMMAND, CT_LIST);
- return (KSTD);
-}
-
-static int
-x_complete(int c MKSH_A_UNUSED)
-{
- do_complete(XCF_COMMAND_FILE, CT_COMPLETE);
- return (KSTD);
-}
-
-static int
-x_enumerate(int c MKSH_A_UNUSED)
-{
- do_complete(XCF_COMMAND_FILE, CT_LIST);
- return (KSTD);
-}
-
-static int
-x_comp_file(int c MKSH_A_UNUSED)
-{
- do_complete(XCF_FILE, CT_COMPLETE);
- return (KSTD);
-}
-
-static int
-x_list_file(int c MKSH_A_UNUSED)
-{
- do_complete(XCF_FILE, CT_LIST);
- return (KSTD);
-}
-
-static int
-x_comp_list(int c MKSH_A_UNUSED)
-{
- do_complete(XCF_COMMAND_FILE, CT_COMPLIST);
- return (KSTD);
-}
-
-static int
-x_expand(int c MKSH_A_UNUSED)
-{
- char **words;
- int start, end, nwords, i;
-
- i = XCF_FILE;
- nwords = x_cf_glob(&i, xbuf, xep - xbuf, xcp - xbuf,
- &start, &end, &words);
-
- if (nwords == 0) {
- x_e_putc2(7);
- return (KSTD);
- }
- x_goto(xbuf + start);
- x_delete(x_nb2nc(end - start), false);
-
- i = 0;
- while (i < nwords) {
- if (x_escape(words[i], strlen(words[i]), x_do_ins) < 0 ||
- (++i < nwords && x_ins(" ") < 0)) {
- x_e_putc2(7);
- return (KSTD);
- }
- }
- x_adjust();
-
- return (KSTD);
-}
-
-static void
-do_complete(
- /* XCF_{COMMAND,FILE,COMMAND_FILE} */
- int flags,
- /* 0 for list, 1 for complete and 2 for complete-list */
- Comp_type type)
-{
- char **words;
- int start, end, nlen, olen, nwords;
- bool completed;
-
- nwords = x_cf_glob(&flags, xbuf, xep - xbuf, xcp - xbuf,
- &start, &end, &words);
- /* no match */
- if (nwords == 0) {
- x_e_putc2(7);
- return;
- }
- if (type == CT_LIST) {
- x_print_expansions(nwords, words,
- tobool(flags & XCF_IS_COMMAND));
- x_redraw(0);
- x_free_words(nwords, words);
- return;
- }
- olen = end - start;
- nlen = x_longest_prefix(nwords, words);
- if (nwords == 1) {
- /*
- * always complete single matches;
- * any expansion of parameter substitution
- * is always at most one result, too
- */
- completed = true;
- } else {
- char *unescaped;
-
- /* make a copy of the original string part */
- strndupx(unescaped, xbuf + start, olen, ATEMP);
-
- /* expand any tilde and unescape the string for comparison */
- unescaped = x_glob_hlp_tilde_and_rem_qchar(unescaped, true);
-
- /*
- * match iff entire original string is part of the
- * longest prefix, implying the latter is at least
- * the same size (after unescaping)
- */
- completed = !strncmp(words[0], unescaped, strlen(unescaped));
-
- afree(unescaped, ATEMP);
- }
- if (type == CT_COMPLIST && nwords > 1) {
- /*
- * print expansions, since we didn't get back
- * just a single match
- */
- x_print_expansions(nwords, words,
- tobool(flags & XCF_IS_COMMAND));
- }
- if (completed) {
- /* expand on the command line */
- xmp = NULL;
- xcp = xbuf + start;
- xep -= olen;
- memmove(xcp, xcp + olen, xep - xcp + 1);
- x_escape(words[0], nlen, x_do_ins);
- }
- x_adjust();
- /*
- * append a space if this is a single non-directory match
- * and not a parameter or homedir substitution
- */
- if (nwords == 1 && words[0][nlen - 1] != '/' &&
- !(flags & XCF_IS_NOSPACE)) {
- x_ins(" ");
- }
-
- x_free_words(nwords, words);
-}
-
-/*-
- * NAME:
- * x_adjust - redraw the line adjusting starting point etc.
- *
- * DESCRIPTION:
- * This function is called when we have exceeded the bounds
- * of the edit window. It increments x_adj_done so that
- * functions like x_ins and x_delete know that we have been
- * called and can skip the x_bs() stuff which has already
- * been done by x_redraw.
- *
- * RETURN VALUE:
- * None
- */
-static void
-x_adjust(void)
-{
- int col_left, n;
-
- /* flag the fact that we were called */
- x_adj_done++;
-
- /*
- * calculate the amount of columns we need to "go back"
- * from xcp to set xbp to (but never < xbuf) to 2/3 of
- * the display width; take care of pwidth though
- */
- if ((col_left = xx_cols * 2 / 3) < MIN_EDIT_SPACE) {
- /*
- * cowardly refuse to do anything
- * if the available space is too small;
- * fall back to dumb pdksh code
- */
- if ((xbp = xcp - (x_displen / 2)) < xbuf)
- xbp = xbuf;
- /* elide UTF-8 fixup as penalty */
- goto x_adjust_out;
- }
-
- /* fix up xbp to just past a character end first */
- xbp = xcp >= xep ? xep : x_bs0(xcp, xbuf);
- /* walk backwards */
- while (xbp > xbuf && col_left > 0) {
- xbp = x_bs0(xbp - 1, xbuf);
- col_left -= (n = x_size2(xbp, NULL));
- }
- /* check if we hit the prompt */
- if (xbp == xbuf && xcp != xbuf && col_left >= 0 && col_left < pwidth) {
- /* so we did; force scrolling occurs */
- xbp += utf_ptradj(xbp);
- }
-
- x_adjust_out:
- xlp_valid = false;
- x_redraw(xx_cols);
- x_flush();
-}
-
-static void
-x_e_ungetc(int c)
-{
- unget_char = c < 0 ? -1 : (c & 255);
-}
-
-static int
-x_e_getc(void)
-{
- int c;
-
- if (unget_char >= 0) {
- c = unget_char;
- unget_char = -1;
- return (c);
- }
-
-#ifndef MKSH_SMALL
- if (macroptr) {
- if ((c = (unsigned char)*macroptr++))
- return (c);
- macroptr = NULL;
- }
-#endif
-
- return (x_getc());
-}
-
-static void
-x_e_putc2(int c)
-{
- int width = 1;
-
- if (c == '\r' || c == '\n')
- x_col = 0;
- if (x_col < xx_cols) {
- if (UTFMODE && (c > 0x7F)) {
- char utf_tmp[3];
- size_t x;
-
- if (c < 0xA0)
- c = 0xFFFD;
- x = utf_wctomb(utf_tmp, c);
- x_putc(utf_tmp[0]);
- if (x > 1)
- x_putc(utf_tmp[1]);
- if (x > 2)
- x_putc(utf_tmp[2]);
- width = utf_wcwidth(c);
- } else
- x_putc(c);
- switch (c) {
- case 7:
- break;
- case '\r':
- case '\n':
- break;
- case '\b':
- x_col--;
- break;
- default:
- x_col += width;
- break;
- }
- }
- if (x_adj_ok && (x_col < 0 || x_col >= (xx_cols - 2)))
- x_adjust();
-}
-
-static void
-x_e_putc3(const char **cp)
-{
- int width = 1, c = **(const unsigned char **)cp;
-
- if (c == '\r' || c == '\n')
- x_col = 0;
- if (x_col < xx_cols) {
- if (UTFMODE && (c > 0x7F)) {
- char *cp2;
-
- width = utf_widthadj(*cp, (const char **)&cp2);
- while (*cp < cp2)
- x_putcf(*(*cp)++);
- } else {
- (*cp)++;
- x_putc(c);
- }
- switch (c) {
- case 7:
- break;
- case '\r':
- case '\n':
- break;
- case '\b':
- x_col--;
- break;
- default:
- x_col += width;
- break;
- }
- }
- if (x_adj_ok && (x_col < 0 || x_col >= (xx_cols - 2)))
- x_adjust();
-}
-
-static void
-x_e_puts(const char *s)
-{
- int adj = x_adj_done;
-
- while (*s && adj == x_adj_done)
- x_e_putc3(&s);
-}
-
-/*-
- * NAME:
- * x_set_arg - set an arg value for next function
- *
- * DESCRIPTION:
- * This is a simple implementation of M-[0-9].
- *
- * RETURN VALUE:
- * KSTD
- */
-static int
-x_set_arg(int c)
-{
- unsigned int n = 0;
- bool first = true;
-
- /* strip command prefix */
- c &= 255;
- while (c >= 0 && ksh_isdigit(c)) {
- n = n * 10 + (c - '0');
- if (n > LINE)
- /* upper bound for repeat */
- goto x_set_arg_too_big;
- c = x_e_getc();
- first = false;
- }
- if (c < 0 || first) {
- x_set_arg_too_big:
- x_e_putc2(7);
- x_arg = 1;
- x_arg_defaulted = true;
- } else {
- x_e_ungetc(c);
- x_arg = n;
- x_arg_defaulted = false;
- }
- return (KSTD);
-}
-
-/* Comment or uncomment the current line. */
-static int
-x_comment(int c MKSH_A_UNUSED)
-{
- int oldsize = x_size_str(xbuf);
- ssize_t len = xep - xbuf;
- int ret = x_do_comment(xbuf, xend - xbuf, &len);
-
- if (ret < 0)
- x_e_putc2(7);
- else {
- x_modified();
- xep = xbuf + len;
- *xep = '\0';
- xcp = xbp = xbuf;
- x_redraw(oldsize);
- if (ret > 0)
- return (x_newline('\n'));
- }
- return (KSTD);
-}
-
-static int
-x_version(int c MKSH_A_UNUSED)
-{
- char *o_xbuf = xbuf, *o_xend = xend;
- char *o_xbp = xbp, *o_xep = xep, *o_xcp = xcp;
- int lim = x_lastcp() - xbp;
- size_t vlen;
- char *v;
-
- strdupx(v, KSH_VERSION, ATEMP);
-
- xbuf = xbp = xcp = v;
- xend = xep = v + (vlen = strlen(v));
- x_redraw(lim);
- x_flush();
-
- c = x_e_getc();
- xbuf = o_xbuf;
- xend = o_xend;
- xbp = o_xbp;
- xep = o_xep;
- xcp = o_xcp;
- x_redraw((int)vlen);
-
- if (c < 0)
- return (KSTD);
- /* This is what AT&T ksh seems to do... Very bizarre */
- if (c != ' ')
- x_e_ungetc(c);
-
- afree(v, ATEMP);
- return (KSTD);
-}
-
-#ifndef MKSH_SMALL
-static int
-x_edit_line(int c MKSH_A_UNUSED)
-{
- if (x_arg_defaulted) {
- if (xep == xbuf) {
- x_e_putc2(7);
- return (KSTD);
- }
- if (modified) {
- *xep = '\0';
- histsave(&source->line, xbuf, true, true);
- x_arg = 0;
- } else
- x_arg = source->line - (histptr - x_histp);
- }
- if (x_arg)
- shf_snprintf(xbuf, xend - xbuf, "%s %d",
- "fc -e ${VISUAL:-${EDITOR:-vi}} --", x_arg);
- else
- strlcpy(xbuf, "fc -e ${VISUAL:-${EDITOR:-vi}} --", xend - xbuf);
- xep = xbuf + strlen(xbuf);
- return (x_newline('\n'));
-}
-#endif
-
-/*-
- * NAME:
- * x_prev_histword - recover word from prev command
- *
- * DESCRIPTION:
- * This function recovers the last word from the previous
- * command and inserts it into the current edit line. If a
- * numeric arg is supplied then the n'th word from the
- * start of the previous command is used.
- * As a side effect, trashes the mark in order to achieve
- * being called in a repeatable fashion.
- *
- * Bound to M-.
- *
- * RETURN VALUE:
- * KSTD
- */
-static int
-x_prev_histword(int c MKSH_A_UNUSED)
-{
- char *rcp, *cp;
- char **xhp;
- int m = 1;
- /* -1 = defaulted; 0+ = argument */
- static int last_arg = -1;
-
- if (x_last_command == XFUNC_prev_histword) {
- if (xmp && modified > 1)
- x_kill_region(0);
- if (modified)
- m = modified;
- } else
- last_arg = x_arg_defaulted ? -1 : x_arg;
- xhp = histptr - (m - 1);
- if ((xhp < history) || !(cp = *xhp)) {
- x_e_putc2(7);
- x_modified();
- return (KSTD);
- }
- x_set_mark(0);
- if ((x_arg = last_arg) == -1) {
- /* x_arg_defaulted */
-
- rcp = &cp[strlen(cp) - 1];
- /*
- * ignore white-space after the last word
- */
- while (rcp > cp && is_cfs(*rcp))
- rcp--;
- while (rcp > cp && !is_cfs(*rcp))
- rcp--;
- if (is_cfs(*rcp))
- rcp++;
- x_ins(rcp);
- } else {
- /* not x_arg_defaulted */
- char ch;
-
- rcp = cp;
- /*
- * ignore white-space at start of line
- */
- while (*rcp && is_cfs(*rcp))
- rcp++;
- while (x_arg-- > 0) {
- while (*rcp && !is_cfs(*rcp))
- rcp++;
- while (*rcp && is_cfs(*rcp))
- rcp++;
- }
- cp = rcp;
- while (*rcp && !is_cfs(*rcp))
- rcp++;
- ch = *rcp;
- *rcp = '\0';
- x_ins(cp);
- *rcp = ch;
- }
- modified = m + 1;
- return (KSTD);
-}
-
-#ifndef MKSH_SMALL
-/* Uppercase N(1) words */
-static int
-x_fold_upper(int c MKSH_A_UNUSED)
-{
- return (x_fold_case('U'));
-}
-
-/* Lowercase N(1) words */
-static int
-x_fold_lower(int c MKSH_A_UNUSED)
-{
- return (x_fold_case('L'));
-}
-
-/* Titlecase N(1) words */
-static int
-x_fold_capitalise(int c MKSH_A_UNUSED)
-{
- return (x_fold_case('C'));
-}
-
-/*-
- * NAME:
- * x_fold_case - convert word to UPPER/lower/Capital case
- *
- * DESCRIPTION:
- * This function is used to implement M-U/M-u, M-L/M-l, M-C/M-c
- * to UPPER CASE, lower case or Capitalise Words.
- *
- * RETURN VALUE:
- * None
- */
-static int
-x_fold_case(int c)
-{
- char *cp = xcp;
-
- if (cp == xep) {
- x_e_putc2(7);
- return (KSTD);
- }
- while (x_arg--) {
- /*
- * first skip over any white-space
- */
- while (cp != xep && is_mfs(*cp))
- cp++;
- /*
- * do the first char on its own since it may be
- * a different action than for the rest.
- */
- if (cp != xep) {
- if (c == 'L')
- /* lowercase */
- *cp = ksh_tolower(*cp);
- else
- /* uppercase, capitalise */
- *cp = ksh_toupper(*cp);
- cp++;
- }
- /*
- * now for the rest of the word
- */
- while (cp != xep && !is_mfs(*cp)) {
- if (c == 'U')
- /* uppercase */
- *cp = ksh_toupper(*cp);
- else
- /* lowercase, capitalise */
- *cp = ksh_tolower(*cp);
- cp++;
- }
- }
- x_goto(cp);
- x_modified();
- return (KSTD);
-}
-#endif
-
-/*-
- * NAME:
- * x_lastcp - last visible char
- *
- * SYNOPSIS:
- * x_lastcp()
- *
- * DESCRIPTION:
- * This function returns a pointer to that char in the
- * edit buffer that will be the last displayed on the
- * screen. The sequence:
- *
- * cp = x_lastcp();
- * while (cp > xcp)
- * x_bs3(&cp);
- *
- * Will position the cursor correctly on the screen.
- *
- * RETURN VALUE:
- * cp or NULL
- */
-static char *
-x_lastcp(void)
-{
- if (!xlp_valid) {
- int i = 0, j;
- char *xlp2;
-
- xlp = xbp;
- while (xlp < xep) {
- j = x_size2(xlp, &xlp2);
- if ((i + j) > x_displen)
- break;
- i += j;
- xlp = xlp2;
- }
- }
- xlp_valid = true;
- return (xlp);
-}
-
-static void
-x_mode(bool onoff)
-{
- static bool x_cur_mode;
-
- if (x_cur_mode == onoff)
- return;
- x_cur_mode = onoff;
-
- if (onoff) {
- x_mkraw(tty_fd, NULL, false);
-
- edchars.erase = tty_state.c_cc[VERASE];
- edchars.kill = tty_state.c_cc[VKILL];
- edchars.intr = tty_state.c_cc[VINTR];
- edchars.quit = tty_state.c_cc[VQUIT];
- edchars.eof = tty_state.c_cc[VEOF];
-#ifdef VWERASE
- edchars.werase = tty_state.c_cc[VWERASE];
-#endif
-
-#ifdef _POSIX_VDISABLE
- /* Convert unset values to internal 'unset' value */
- if (edchars.erase == _POSIX_VDISABLE)
- edchars.erase = -1;
- if (edchars.kill == _POSIX_VDISABLE)
- edchars.kill = -1;
- if (edchars.intr == _POSIX_VDISABLE)
- edchars.intr = -1;
- if (edchars.quit == _POSIX_VDISABLE)
- edchars.quit = -1;
- if (edchars.eof == _POSIX_VDISABLE)
- edchars.eof = -1;
- if (edchars.werase == _POSIX_VDISABLE)
- edchars.werase = -1;
-#endif
-
- if (edchars.erase >= 0) {
- bind_if_not_bound(0, edchars.erase, XFUNC_del_back);
- bind_if_not_bound(1, edchars.erase, XFUNC_del_bword);
- }
- if (edchars.kill >= 0)
- bind_if_not_bound(0, edchars.kill, XFUNC_del_line);
- if (edchars.werase >= 0)
- bind_if_not_bound(0, edchars.werase, XFUNC_del_bword);
- if (edchars.intr >= 0)
- bind_if_not_bound(0, edchars.intr, XFUNC_abort);
- if (edchars.quit >= 0)
- bind_if_not_bound(0, edchars.quit, XFUNC_noop);
- } else
- mksh_tcset(tty_fd, &tty_state);
-}
-
-#if !MKSH_S_NOVI
-/* +++ vi editing mode +++ */
-
-#define Ctrl(c) (c&0x1f)
-
-struct edstate {
- char *cbuf;
- ssize_t winleft;
- ssize_t cbufsize;
- ssize_t linelen;
- ssize_t cursor;
-};
-
-static int vi_hook(int);
-static int nextstate(int);
-static int vi_insert(int);
-static int vi_cmd(int, const char *);
-static int domove(int, const char *, int);
-static int redo_insert(int);
-static void yank_range(int, int);
-static int bracktype(int);
-static void save_cbuf(void);
-static void restore_cbuf(void);
-static int putbuf(const char *, ssize_t, bool);
-static void del_range(int, int);
-static int findch(int, int, bool, bool);
-static int forwword(int);
-static int backword(int);
-static int endword(int);
-static int Forwword(int);
-static int Backword(int);
-static int Endword(int);
-static int grabhist(int, int);
-static int grabsearch(int, int, int, const char *);
-static void redraw_line(bool);
-static void refresh(int);
-static int outofwin(void);
-static void rewindow(void);
-static int newcol(int, int);
-static void display(char *, char *, int);
-static void ed_mov_opt(int, char *);
-static int expand_word(int);
-static int complete_word(int, int);
-static int print_expansions(struct edstate *, int);
-#define char_len(c) ((c) < ' ' || (c) == 0x7F ? 2 : 1)
-static void x_vi_zotc(int);
-static void vi_error(void);
-static void vi_macro_reset(void);
-static int x_vi_putbuf(const char *, size_t);
-
-#define vC 0x01 /* a valid command that isn't a vM, vE, vU */
-#define vM 0x02 /* movement command (h, l, etc.) */
-#define vE 0x04 /* extended command (c, d, y) */
-#define vX 0x08 /* long command (@, f, F, t, T, etc.) */
-#define vU 0x10 /* an UN-undoable command (that isn't a vM) */
-#define vB 0x20 /* bad command (^@) */
-#define vZ 0x40 /* repeat count defaults to 0 (not 1) */
-#define vS 0x80 /* search (/, ?) */
-
-#define is_bad(c) (classify[(c)&0x7f]&vB)
-#define is_cmd(c) (classify[(c)&0x7f]&(vM|vE|vC|vU))
-#define is_move(c) (classify[(c)&0x7f]&vM)
-#define is_extend(c) (classify[(c)&0x7f]&vE)
-#define is_long(c) (classify[(c)&0x7f]&vX)
-#define is_undoable(c) (!(classify[(c)&0x7f]&vU))
-#define is_srch(c) (classify[(c)&0x7f]&vS)
-#define is_zerocount(c) (classify[(c)&0x7f]&vZ)
-
-static const unsigned char classify[128] = {
-/* 0 1 2 3 4 5 6 7 */
-/* 0 ^@ ^A ^B ^C ^D ^E ^F ^G */
- vB, 0, 0, 0, 0, vC|vU, vC|vZ, 0,
-/* 1 ^H ^I ^J ^K ^L ^M ^N ^O */
- vM, vC|vZ, 0, 0, vC|vU, 0, vC, 0,
-/* 2 ^P ^Q ^R ^S ^T ^U ^V ^W */
- vC, 0, vC|vU, 0, 0, 0, vC, 0,
-/* 3 ^X ^Y ^Z ^[ ^\ ^] ^^ ^_ */
- vC, 0, 0, vC|vZ, 0, 0, 0, 0,
-/* 4 <space> ! " # $ % & ' */
- vM, 0, 0, vC, vM, vM, 0, 0,
-/* 5 ( ) * + , - . / */
- 0, 0, vC, vC, vM, vC, 0, vC|vS,
-/* 6 0 1 2 3 4 5 6 7 */
- vM, 0, 0, 0, 0, 0, 0, 0,
-/* 7 8 9 : ; < = > ? */
- 0, 0, 0, vM, 0, vC, 0, vC|vS,
-/* 8 @ A B C D E F G */
- vC|vX, vC, vM, vC, vC, vM, vM|vX, vC|vU|vZ,
-/* 9 H I J K L M N O */
- 0, vC, 0, 0, 0, 0, vC|vU, vU,
-/* A P Q R S T U V W */
- vC, 0, vC, vC, vM|vX, vC, 0, vM,
-/* B X Y Z [ \ ] ^ _ */
- vC, vC|vU, 0, vU, vC|vZ, 0, vM, vC|vZ,
-/* C ` a b c d e f g */
- 0, vC, vM, vE, vE, vM, vM|vX, vC|vZ,
-/* D h i j k l m n o */
- vM, vC, vC|vU, vC|vU, vM, 0, vC|vU, 0,
-/* E p q r s t u v w */
- vC, 0, vX, vC, vM|vX, vC|vU, vC|vU|vZ, vM,
-/* F x y z { | } ~ ^? */
- vC, vE|vU, 0, 0, vM|vZ, 0, vC, 0
-};
-
-#define MAXVICMD 3
-#define SRCHLEN 40
-
-#define INSERT 1
-#define REPLACE 2
-
-#define VNORMAL 0 /* command, insert or replace mode */
-#define VARG1 1 /* digit prefix (first, eg, 5l) */
-#define VEXTCMD 2 /* cmd + movement (eg, cl) */
-#define VARG2 3 /* digit prefix (second, eg, 2c3l) */
-#define VXCH 4 /* f, F, t, T, @ */
-#define VFAIL 5 /* bad command */
-#define VCMD 6 /* single char command (eg, X) */
-#define VREDO 7 /* . */
-#define VLIT 8 /* ^V */
-#define VSEARCH 9 /* /, ? */
-#define VVERSION 10 /* <ESC> ^V */
-#define VPREFIX2 11 /* ^[[ and ^[O in insert mode */
-
-static struct edstate *save_edstate(struct edstate *old);
-static void restore_edstate(struct edstate *old, struct edstate *news);
-static void free_edstate(struct edstate *old);
-
-static struct edstate ebuf;
-static struct edstate undobuf;
-
-static struct edstate *es; /* current editor state */
-static struct edstate *undo;
-
-static char *ibuf; /* input buffer */
-static bool first_insert; /* set when starting in insert mode */
-static int saved_inslen; /* saved inslen for first insert */
-static int inslen; /* length of input buffer */
-static int srchlen; /* length of current search pattern */
-static char *ybuf; /* yank buffer */
-static int yanklen; /* length of yank buffer */
-static int fsavecmd = ' '; /* last find command */
-static int fsavech; /* character to find */
-static char lastcmd[MAXVICMD]; /* last non-move command */
-static int lastac; /* argcnt for lastcmd */
-static int lastsearch = ' '; /* last search command */
-static char srchpat[SRCHLEN]; /* last search pattern */
-static int insert; /* <>0 in insert mode */
-static int hnum; /* position in history */
-static int ohnum; /* history line copied (after mod) */
-static int hlast; /* 1 past last position in history */
-static int state;
-
-/*
- * Information for keeping track of macros that are being expanded.
- * The format of buf is the alias contents followed by a NUL byte followed
- * by the name (letter) of the alias. The end of the buffer is marked by
- * a double NUL. The name of the alias is stored so recursive macros can
- * be detected.
- */
-struct macro_state {
- unsigned char *p; /* current position in buf */
- unsigned char *buf; /* pointer to macro(s) being expanded */
- size_t len; /* how much data in buffer */
-};
-static struct macro_state macro;
-
-/* last input was expanded */
-static enum expand_mode {
- NONE = 0, EXPAND, COMPLETE, PRINT
-} expanded;
-
-static int
-x_vi(char *buf)
-{
- int c;
-
- state = VNORMAL;
- ohnum = hnum = hlast = histnum(-1) + 1;
- insert = INSERT;
- saved_inslen = inslen;
- first_insert = true;
- inslen = 0;
- vi_macro_reset();
-
- ebuf.cbuf = buf;
- if (undobuf.cbuf == NULL) {
- ibuf = alloc(LINE, AEDIT);
- ybuf = alloc(LINE, AEDIT);
- undobuf.cbuf = alloc(LINE, AEDIT);
- }
- undobuf.cbufsize = ebuf.cbufsize = LINE;
- undobuf.linelen = ebuf.linelen = 0;
- undobuf.cursor = ebuf.cursor = 0;
- undobuf.winleft = ebuf.winleft = 0;
- es = &ebuf;
- undo = &undobuf;
-
- x_init_prompt();
- x_col = pwidth;
-
- if (wbuf_len != x_cols - 3 && ((wbuf_len = x_cols - 3))) {
- wbuf[0] = aresize(wbuf[0], wbuf_len, AEDIT);
- wbuf[1] = aresize(wbuf[1], wbuf_len, AEDIT);
- }
- if (wbuf_len) {
- memset(wbuf[0], ' ', wbuf_len);
- memset(wbuf[1], ' ', wbuf_len);
- }
- winwidth = x_cols - pwidth - 3;
- win = 0;
- morec = ' ';
- lastref = 1;
- holdlen = 0;
-
- editmode = 2;
- x_flush();
- while (/* CONSTCOND */ 1) {
- if (macro.p) {
- c = *macro.p++;
- /* end of current macro? */
- if (!c) {
- /* more macros left to finish? */
- if (*macro.p++)
- continue;
- /* must be the end of all the macros */
- vi_macro_reset();
- c = x_getc();
- }
- } else
- c = x_getc();
-
- if (c == -1)
- break;
- if (state != VLIT) {
- if (c == edchars.intr || c == edchars.quit) {
- /* pretend we got an interrupt */
- x_vi_zotc(c);
- x_flush();
- trapsig(c == edchars.intr ? SIGINT : SIGQUIT);
- x_mode(false);
- unwind(LSHELL);
- } else if (c == edchars.eof && state != VVERSION) {
- if (es->linelen == 0) {
- x_vi_zotc(edchars.eof);
- c = -1;
- break;
- }
- continue;
- }
- }
- if (vi_hook(c))
- break;
- x_flush();
- }
-
- x_putc('\r');
- x_putc('\n');
- x_flush();
-
- if (c == -1 || (ssize_t)LINE <= es->linelen)
- return (-1);
-
- if (es->cbuf != buf)
- memcpy(buf, es->cbuf, es->linelen);
-
- buf[es->linelen++] = '\n';
-
- return (es->linelen);
-}
-
-static int
-vi_hook(int ch)
-{
- static char curcmd[MAXVICMD], locpat[SRCHLEN];
- static int cmdlen, argc1, argc2;
-
- switch (state) {
-
- case VNORMAL:
- if (insert != 0) {
- if (ch == Ctrl('v')) {
- state = VLIT;
- ch = '^';
- }
- switch (vi_insert(ch)) {
- case -1:
- vi_error();
- state = VNORMAL;
- break;
- case 0:
- if (state == VLIT) {
- es->cursor--;
- refresh(0);
- } else
- refresh(insert != 0);
- break;
- case 1:
- return (1);
- }
- } else {
- if (ch == '\r' || ch == '\n')
- return (1);
- cmdlen = 0;
- argc1 = 0;
- if (ch >= '1' && ch <= '9') {
- argc1 = ch - '0';
- state = VARG1;
- } else {
- curcmd[cmdlen++] = ch;
- state = nextstate(ch);
- if (state == VSEARCH) {
- save_cbuf();
- es->cursor = 0;
- es->linelen = 0;
- if (putbuf(ch == '/' ? "/" : "?", 1,
- false) != 0)
- return (-1);
- refresh(0);
- }
- if (state == VVERSION) {
- save_cbuf();
- es->cursor = 0;
- es->linelen = 0;
- putbuf(KSH_VERSION,
- strlen(KSH_VERSION), false);
- refresh(0);
- }
- }
- }
- break;
-
- case VLIT:
- if (is_bad(ch)) {
- del_range(es->cursor, es->cursor + 1);
- vi_error();
- } else
- es->cbuf[es->cursor++] = ch;
- refresh(1);
- state = VNORMAL;
- break;
-
- case VVERSION:
- restore_cbuf();
- state = VNORMAL;
- refresh(0);
- break;
-
- case VARG1:
- if (ksh_isdigit(ch))
- argc1 = argc1 * 10 + ch - '0';
- else {
- curcmd[cmdlen++] = ch;
- state = nextstate(ch);
- }
- break;
-
- case VEXTCMD:
- argc2 = 0;
- if (ch >= '1' && ch <= '9') {
- argc2 = ch - '0';
- state = VARG2;
- return (0);
- } else {
- curcmd[cmdlen++] = ch;
- if (ch == curcmd[0])
- state = VCMD;
- else if (is_move(ch))
- state = nextstate(ch);
- else
- state = VFAIL;
- }
- break;
-
- case VARG2:
- if (ksh_isdigit(ch))
- argc2 = argc2 * 10 + ch - '0';
- else {
- if (argc1 == 0)
- argc1 = argc2;
- else
- argc1 *= argc2;
- curcmd[cmdlen++] = ch;
- if (ch == curcmd[0])
- state = VCMD;
- else if (is_move(ch))
- state = nextstate(ch);
- else
- state = VFAIL;
- }
- break;
-
- case VXCH:
- if (ch == Ctrl('['))
- state = VNORMAL;
- else {
- curcmd[cmdlen++] = ch;
- state = VCMD;
- }
- break;
-
- case VSEARCH:
- if (ch == '\r' || ch == '\n' /*|| ch == Ctrl('[')*/ ) {
- restore_cbuf();
- /* Repeat last search? */
- if (srchlen == 0) {
- if (!srchpat[0]) {
- vi_error();
- state = VNORMAL;
- refresh(0);
- return (0);
- }
- } else {
- locpat[srchlen] = '\0';
- memcpy(srchpat, locpat, srchlen + 1);
- }
- state = VCMD;
- } else if (ch == edchars.erase || ch == Ctrl('h')) {
- if (srchlen != 0) {
- srchlen--;
- es->linelen -= char_len((unsigned char)locpat[srchlen]);
- es->cursor = es->linelen;
- refresh(0);
- return (0);
- }
- restore_cbuf();
- state = VNORMAL;
- refresh(0);
- } else if (ch == edchars.kill) {
- srchlen = 0;
- es->linelen = 1;
- es->cursor = 1;
- refresh(0);
- return (0);
- } else if (ch == edchars.werase) {
- int i, n = srchlen;
- struct edstate new_es, *save_es;
-
- new_es.cursor = n;
- new_es.cbuf = locpat;
-
- save_es = es;
- es = &new_es;
- n = backword(1);
- es = save_es;
-
- for (i = srchlen; --i >= n; )
- es->linelen -= char_len((unsigned char)locpat[i]);
- srchlen = n;
- es->cursor = es->linelen;
- refresh(0);
- return (0);
- } else {
- if (srchlen == SRCHLEN - 1)
- vi_error();
- else {
- locpat[srchlen++] = ch;
- if (ch < ' ' || ch == 0x7f) {
- if ((size_t)es->linelen + 2 >
- (size_t)es->cbufsize)
- vi_error();
- es->cbuf[es->linelen++] = '^';
- es->cbuf[es->linelen++] = ch ^ '@';
- } else {
- if (es->linelen >= es->cbufsize)
- vi_error();
- es->cbuf[es->linelen++] = ch;
- }
- es->cursor = es->linelen;
- refresh(0);
- }
- return (0);
- }
- break;
-
- case VPREFIX2:
- state = VFAIL;
- switch (ch) {
- case 'A':
- /* the cursor may not be at the BOL */
- if (!es->cursor)
- break;
- /* nor further in the line than we can search for */
- if ((size_t)es->cursor >= sizeof(srchpat) - 1)
- es->cursor = sizeof(srchpat) - 2;
- /* anchor the search pattern */
- srchpat[0] = '^';
- /* take the current line up to the cursor */
- memmove(srchpat + 1, es->cbuf, es->cursor);
- srchpat[es->cursor + 1] = '\0';
- /* set a magic flag */
- argc1 = 2 + (int)es->cursor;
- /* and emulate a backwards history search */
- lastsearch = '/';
- *curcmd = 'n';
- goto pseudo_VCMD;
- }
- break;
- }
-
- switch (state) {
- case VCMD:
- pseudo_VCMD:
- state = VNORMAL;
- switch (vi_cmd(argc1, curcmd)) {
- case -1:
- vi_error();
- refresh(0);
- break;
- case 0:
- if (insert != 0)
- inslen = 0;
- refresh(insert != 0);
- break;
- case 1:
- refresh(0);
- return (1);
- case 2:
- /* back from a 'v' command - don't redraw the screen */
- return (1);
- }
- break;
-
- case VREDO:
- state = VNORMAL;
- if (argc1 != 0)
- lastac = argc1;
- switch (vi_cmd(lastac, lastcmd)) {
- case -1:
- vi_error();
- refresh(0);
- break;
- case 0:
- if (insert != 0) {
- if (lastcmd[0] == 's' || lastcmd[0] == 'c' ||
- lastcmd[0] == 'C') {
- if (redo_insert(1) != 0)
- vi_error();
- } else {
- if (redo_insert(lastac) != 0)
- vi_error();
- }
- }
- refresh(0);
- break;
- case 1:
- refresh(0);
- return (1);
- case 2:
- /* back from a 'v' command - can't happen */
- break;
- }
- break;
-
- case VFAIL:
- state = VNORMAL;
- vi_error();
- break;
- }
- return (0);
-}
-
-static int
-nextstate(int ch)
-{
- if (is_extend(ch))
- return (VEXTCMD);
- else if (is_srch(ch))
- return (VSEARCH);
- else if (is_long(ch))
- return (VXCH);
- else if (ch == '.')
- return (VREDO);
- else if (ch == Ctrl('v'))
- return (VVERSION);
- else if (is_cmd(ch))
- return (VCMD);
- else
- return (VFAIL);
-}
-
-static int
-vi_insert(int ch)
-{
- int tcursor;
-
- if (ch == edchars.erase || ch == Ctrl('h')) {
- if (insert == REPLACE) {
- if (es->cursor == undo->cursor) {
- vi_error();
- return (0);
- }
- if (inslen > 0)
- inslen--;
- es->cursor--;
- if (es->cursor >= undo->linelen)
- es->linelen--;
- else
- es->cbuf[es->cursor] = undo->cbuf[es->cursor];
- } else {
- if (es->cursor == 0)
- return (0);
- if (inslen > 0)
- inslen--;
- es->cursor--;
- es->linelen--;
- memmove(&es->cbuf[es->cursor], &es->cbuf[es->cursor + 1],
- es->linelen - es->cursor + 1);
- }
- expanded = NONE;
- return (0);
- }
- if (ch == edchars.kill) {
- if (es->cursor != 0) {
- inslen = 0;
- memmove(es->cbuf, &es->cbuf[es->cursor],
- es->linelen - es->cursor);
- es->linelen -= es->cursor;
- es->cursor = 0;
- }
- expanded = NONE;
- return (0);
- }
- if (ch == edchars.werase) {
- if (es->cursor != 0) {
- tcursor = backword(1);
- memmove(&es->cbuf[tcursor], &es->cbuf[es->cursor],
- es->linelen - es->cursor);
- es->linelen -= es->cursor - tcursor;
- if (inslen < es->cursor - tcursor)
- inslen = 0;
- else
- inslen -= es->cursor - tcursor;
- es->cursor = tcursor;
- }
- expanded = NONE;
- return (0);
- }
- /*
- * If any chars are entered before escape, trash the saved insert
- * buffer (if user inserts & deletes char, ibuf gets trashed and
- * we don't want to use it)
- */
- if (first_insert && ch != Ctrl('['))
- saved_inslen = 0;
- switch (ch) {
- case '\0':
- return (-1);
-
- case '\r':
- case '\n':
- return (1);
-
- case Ctrl('['):
- expanded = NONE;
- if (first_insert) {
- first_insert = false;
- if (inslen == 0) {
- inslen = saved_inslen;
- return (redo_insert(0));
- }
- lastcmd[0] = 'a';
- lastac = 1;
- }
- if (lastcmd[0] == 's' || lastcmd[0] == 'c' ||
- lastcmd[0] == 'C')
- return (redo_insert(0));
- else
- return (redo_insert(lastac - 1));
-
- /* { Begin nonstandard vi commands */
- case Ctrl('x'):
- expand_word(0);
- break;
-
- case Ctrl('f'):
- complete_word(0, 0);
- break;
-
- case Ctrl('e'):
- print_expansions(es, 0);
- break;
-
- case Ctrl('i'):
- if (Flag(FVITABCOMPLETE)) {
- complete_word(0, 0);
- break;
- }
- /* FALLTHROUGH */
- /* End nonstandard vi commands } */
-
- default:
- if (es->linelen >= es->cbufsize - 1)
- return (-1);
- ibuf[inslen++] = ch;
- if (insert == INSERT) {
- memmove(&es->cbuf[es->cursor + 1], &es->cbuf[es->cursor],
- es->linelen - es->cursor);
- es->linelen++;
- }
- es->cbuf[es->cursor++] = ch;
- if (insert == REPLACE && es->cursor > es->linelen)
- es->linelen++;
- expanded = NONE;
- }
- return (0);
-}
-
-static int
-vi_cmd(int argcnt, const char *cmd)
-{
- int ncursor;
- int cur, c1, c2, c3 = 0;
- int any;
- struct edstate *t;
-
- if (argcnt == 0 && !is_zerocount(*cmd))
- argcnt = 1;
-
- if (is_move(*cmd)) {
- if ((cur = domove(argcnt, cmd, 0)) >= 0) {
- if (cur == es->linelen && cur != 0)
- cur--;
- es->cursor = cur;
- } else
- return (-1);
- } else {
- /* Don't save state in middle of macro.. */
- if (is_undoable(*cmd) && !macro.p) {
- undo->winleft = es->winleft;
- memmove(undo->cbuf, es->cbuf, es->linelen);
- undo->linelen = es->linelen;
- undo->cursor = es->cursor;
- lastac = argcnt;
- memmove(lastcmd, cmd, MAXVICMD);
- }
- switch (*cmd) {
-
- case Ctrl('l'):
- case Ctrl('r'):
- redraw_line(true);
- break;
-
- case '@':
- {
- static char alias[] = "_\0";
- struct tbl *ap;
- size_t olen, nlen;
- char *p, *nbuf;
-
- /* lookup letter in alias list... */
- alias[1] = cmd[1];
- ap = ktsearch(&aliases, alias, hash(alias));
- if (!cmd[1] || !ap || !(ap->flag & ISSET))
- return (-1);
- /* check if this is a recursive call... */
- if ((p = (char *)macro.p))
- while ((p = strnul(p)) && p[1])
- if (*++p == cmd[1])
- return (-1);
- /* insert alias into macro buffer */
- nlen = strlen(ap->val.s) + 1;
- olen = !macro.p ? 2 :
- macro.len - (macro.p - macro.buf);
- /*
- * at this point, it's fairly reasonable that
- * nlen + olen + 2 doesn't overflow
- */
- nbuf = alloc(nlen + 1 + olen, AEDIT);
- memcpy(nbuf, ap->val.s, nlen);
- nbuf[nlen++] = cmd[1];
- if (macro.p) {
- memcpy(nbuf + nlen, macro.p, olen);
- afree(macro.buf, AEDIT);
- nlen += olen;
- } else {
- nbuf[nlen++] = '\0';
- nbuf[nlen++] = '\0';
- }
- macro.p = macro.buf = (unsigned char *)nbuf;
- macro.len = nlen;
- }
- break;
-
- case 'a':
- modified = 1;
- hnum = hlast;
- if (es->linelen != 0)
- es->cursor++;
- insert = INSERT;
- break;
-
- case 'A':
- modified = 1;
- hnum = hlast;
- del_range(0, 0);
- es->cursor = es->linelen;
- insert = INSERT;
- break;
-
- case 'S':
- es->cursor = domove(1, "^", 1);
- del_range(es->cursor, es->linelen);
- modified = 1;
- hnum = hlast;
- insert = INSERT;
- break;
-
- case 'Y':
- cmd = "y$";
- /* ahhhhhh... */
- case 'c':
- case 'd':
- case 'y':
- if (*cmd == cmd[1]) {
- c1 = *cmd == 'c' ? domove(1, "^", 1) : 0;
- c2 = es->linelen;
- } else if (!is_move(cmd[1]))
- return (-1);
- else {
- if ((ncursor = domove(argcnt, &cmd[1], 1)) < 0)
- return (-1);
- if (*cmd == 'c' &&
- (cmd[1] == 'w' || cmd[1] == 'W') &&
- !ksh_isspace(es->cbuf[es->cursor])) {
- do {
- --ncursor;
- } while (ksh_isspace(es->cbuf[ncursor]));
- ncursor++;
- }
- if (ncursor > es->cursor) {
- c1 = es->cursor;
- c2 = ncursor;
- } else {
- c1 = ncursor;
- c2 = es->cursor;
- if (cmd[1] == '%')
- c2++;
- }
- }
- if (*cmd != 'c' && c1 != c2)
- yank_range(c1, c2);
- if (*cmd != 'y') {
- del_range(c1, c2);
- es->cursor = c1;
- }
- if (*cmd == 'c') {
- modified = 1;
- hnum = hlast;
- insert = INSERT;
- }
- break;
-
- case 'p':
- modified = 1;
- hnum = hlast;
- if (es->linelen != 0)
- es->cursor++;
- while (putbuf(ybuf, yanklen, false) == 0 &&
- --argcnt > 0)
- ;
- if (es->cursor != 0)
- es->cursor--;
- if (argcnt != 0)
- return (-1);
- break;
-
- case 'P':
- modified = 1;
- hnum = hlast;
- any = 0;
- while (putbuf(ybuf, yanklen, false) == 0 &&
- --argcnt > 0)
- any = 1;
- if (any && es->cursor != 0)
- es->cursor--;
- if (argcnt != 0)
- return (-1);
- break;
-
- case 'C':
- modified = 1;
- hnum = hlast;
- del_range(es->cursor, es->linelen);
- insert = INSERT;
- break;
-
- case 'D':
- yank_range(es->cursor, es->linelen);
- del_range(es->cursor, es->linelen);
- if (es->cursor != 0)
- es->cursor--;
- break;
-
- case 'g':
- if (!argcnt)
- argcnt = hlast;
- /* FALLTHROUGH */
- case 'G':
- if (!argcnt)
- argcnt = 1;
- else
- argcnt = hlast - (source->line - argcnt);
- if (grabhist(modified, argcnt - 1) < 0)
- return (-1);
- else {
- modified = 0;
- hnum = argcnt - 1;
- }
- break;
-
- case 'i':
- modified = 1;
- hnum = hlast;
- insert = INSERT;
- break;
-
- case 'I':
- modified = 1;
- hnum = hlast;
- es->cursor = domove(1, "^", 1);
- insert = INSERT;
- break;
-
- case 'j':
- case '+':
- case Ctrl('n'):
- if (grabhist(modified, hnum + argcnt) < 0)
- return (-1);
- else {
- modified = 0;
- hnum += argcnt;
- }
- break;
-
- case 'k':
- case '-':
- case Ctrl('p'):
- if (grabhist(modified, hnum - argcnt) < 0)
- return (-1);
- else {
- modified = 0;
- hnum -= argcnt;
- }
- break;
-
- case 'r':
- if (es->linelen == 0)
- return (-1);
- modified = 1;
- hnum = hlast;
- if (cmd[1] == 0)
- vi_error();
- else {
- int n;
-
- if (es->cursor + argcnt > es->linelen)
- return (-1);
- for (n = 0; n < argcnt; ++n)
- es->cbuf[es->cursor + n] = cmd[1];
- es->cursor += n - 1;
- }
- break;
-
- case 'R':
- modified = 1;
- hnum = hlast;
- insert = REPLACE;
- break;
-
- case 's':
- if (es->linelen == 0)
- return (-1);
- modified = 1;
- hnum = hlast;
- if (es->cursor + argcnt > es->linelen)
- argcnt = es->linelen - es->cursor;
- del_range(es->cursor, es->cursor + argcnt);
- insert = INSERT;
- break;
-
- case 'v':
- if (!argcnt) {
- if (es->linelen == 0)
- return (-1);
- if (modified) {
- es->cbuf[es->linelen] = '\0';
- histsave(&source->line, es->cbuf, true,
- true);
- } else
- argcnt = source->line + 1 -
- (hlast - hnum);
- }
- if (argcnt)
- shf_snprintf(es->cbuf, es->cbufsize, "%s %d",
- "fc -e ${VISUAL:-${EDITOR:-vi}} --",
- argcnt);
- else
- strlcpy(es->cbuf,
- "fc -e ${VISUAL:-${EDITOR:-vi}} --",
- es->cbufsize);
- es->linelen = strlen(es->cbuf);
- return (2);
-
- case 'x':
- if (es->linelen == 0)
- return (-1);
- modified = 1;
- hnum = hlast;
- if (es->cursor + argcnt > es->linelen)
- argcnt = es->linelen - es->cursor;
- yank_range(es->cursor, es->cursor + argcnt);
- del_range(es->cursor, es->cursor + argcnt);
- break;
-
- case 'X':
- if (es->cursor > 0) {
- modified = 1;
- hnum = hlast;
- if (es->cursor < argcnt)
- argcnt = es->cursor;
- yank_range(es->cursor - argcnt, es->cursor);
- del_range(es->cursor - argcnt, es->cursor);
- es->cursor -= argcnt;
- } else
- return (-1);
- break;
-
- case 'u':
- t = es;
- es = undo;
- undo = t;
- break;
-
- case 'U':
- if (!modified)
- return (-1);
- if (grabhist(modified, ohnum) < 0)
- return (-1);
- modified = 0;
- hnum = ohnum;
- break;
-
- case '?':
- if (hnum == hlast)
- hnum = -1;
- /* ahhh */
- case '/':
- c3 = 1;
- srchlen = 0;
- lastsearch = *cmd;
- /* FALLTHROUGH */
- case 'n':
- case 'N':
- if (lastsearch == ' ')
- return (-1);
- if (lastsearch == '?')
- c1 = 1;
- else
- c1 = 0;
- if (*cmd == 'N')
- c1 = !c1;
- if ((c2 = grabsearch(modified, hnum,
- c1, srchpat)) < 0) {
- if (c3) {
- restore_cbuf();
- refresh(0);
- }
- return (-1);
- } else {
- modified = 0;
- hnum = c2;
- ohnum = hnum;
- }
- if (argcnt >= 2) {
- /* flag from cursor-up command */
- es->cursor = argcnt - 2;
- return (0);
- }
- break;
- case '_':
- {
- bool inspace;
- char *p, *sp;
-
- if (histnum(-1) < 0)
- return (-1);
- p = *histpos();
-#define issp(c) (ksh_isspace(c) || (c) == '\n')
- if (argcnt) {
- while (*p && issp(*p))
- p++;
- while (*p && --argcnt) {
- while (*p && !issp(*p))
- p++;
- while (*p && issp(*p))
- p++;
- }
- if (!*p)
- return (-1);
- sp = p;
- } else {
- sp = p;
- inspace = false;
- while (*p) {
- if (issp(*p))
- inspace = true;
- else if (inspace) {
- inspace = false;
- sp = p;
- }
- p++;
- }
- p = sp;
- }
- modified = 1;
- hnum = hlast;
- if (es->cursor != es->linelen)
- es->cursor++;
- while (*p && !issp(*p)) {
- argcnt++;
- p++;
- }
- if (putbuf(" ", 1, false) != 0 ||
- putbuf(sp, argcnt, false) != 0) {
- if (es->cursor != 0)
- es->cursor--;
- return (-1);
- }
- insert = INSERT;
- }
- break;
-
- case '~':
- {
- char *p;
- int i;
-
- if (es->linelen == 0)
- return (-1);
- for (i = 0; i < argcnt; i++) {
- p = &es->cbuf[es->cursor];
- if (ksh_islower(*p)) {
- modified = 1;
- hnum = hlast;
- *p = ksh_toupper(*p);
- } else if (ksh_isupper(*p)) {
- modified = 1;
- hnum = hlast;
- *p = ksh_tolower(*p);
- }
- if (es->cursor < es->linelen - 1)
- es->cursor++;
- }
- break;
- }
-
- case '#':
- {
- int ret = x_do_comment(es->cbuf, es->cbufsize,
- &es->linelen);
- if (ret >= 0)
- es->cursor = 0;
- return (ret);
- }
-
- /* AT&T ksh */
- case '=':
- /* Nonstandard vi/ksh */
- case Ctrl('e'):
- print_expansions(es, 1);
- break;
-
-
- /* Nonstandard vi/ksh */
- case Ctrl('i'):
- if (!Flag(FVITABCOMPLETE))
- return (-1);
- complete_word(1, argcnt);
- break;
-
- /* some annoying AT&T kshs */
- case Ctrl('['):
- if (!Flag(FVIESCCOMPLETE))
- return (-1);
- /* AT&T ksh */
- case '\\':
- /* Nonstandard vi/ksh */
- case Ctrl('f'):
- complete_word(1, argcnt);
- break;
-
-
- /* AT&T ksh */
- case '*':
- /* Nonstandard vi/ksh */
- case Ctrl('x'):
- expand_word(1);
- break;
-
-
- /* mksh: cursor movement */
- case '[':
- case 'O':
- state = VPREFIX2;
- if (es->linelen != 0)
- es->cursor++;
- insert = INSERT;
- return (0);
- }
- if (insert == 0 && es->cursor != 0 && es->cursor >= es->linelen)
- es->cursor--;
- }
- return (0);
-}
-
-static int
-domove(int argcnt, const char *cmd, int sub)
-{
- int bcount, i = 0, t;
- int ncursor = 0;
-
- switch (*cmd) {
- case 'b':
- if (!sub && es->cursor == 0)
- return (-1);
- ncursor = backword(argcnt);
- break;
-
- case 'B':
- if (!sub && es->cursor == 0)
- return (-1);
- ncursor = Backword(argcnt);
- break;
-
- case 'e':
- if (!sub && es->cursor + 1 >= es->linelen)
- return (-1);
- ncursor = endword(argcnt);
- if (sub && ncursor < es->linelen)
- ncursor++;
- break;
-
- case 'E':
- if (!sub && es->cursor + 1 >= es->linelen)
- return (-1);
- ncursor = Endword(argcnt);
- if (sub && ncursor < es->linelen)
- ncursor++;
- break;
-
- case 'f':
- case 'F':
- case 't':
- case 'T':
- fsavecmd = *cmd;
- fsavech = cmd[1];
- /* drop through */
-
- case ',':
- case ';':
- if (fsavecmd == ' ')
- return (-1);
- i = fsavecmd == 'f' || fsavecmd == 'F';
- t = fsavecmd > 'a';
- if (*cmd == ',')
- t = !t;
- if ((ncursor = findch(fsavech, argcnt, tobool(t),
- tobool(i))) < 0)
- return (-1);
- if (sub && t)
- ncursor++;
- break;
-
- case 'h':
- case Ctrl('h'):
- if (!sub && es->cursor == 0)
- return (-1);
- ncursor = es->cursor - argcnt;
- if (ncursor < 0)
- ncursor = 0;
- break;
-
- case ' ':
- case 'l':
- if (!sub && es->cursor + 1 >= es->linelen)
- return (-1);
- if (es->linelen != 0) {
- ncursor = es->cursor + argcnt;
- if (ncursor > es->linelen)
- ncursor = es->linelen;
- }
- break;
-
- case 'w':
- if (!sub && es->cursor + 1 >= es->linelen)
- return (-1);
- ncursor = forwword(argcnt);
- break;
-
- case 'W':
- if (!sub && es->cursor + 1 >= es->linelen)
- return (-1);
- ncursor = Forwword(argcnt);
- break;
-
- case '0':
- ncursor = 0;
- break;
-
- case '^':
- ncursor = 0;
- while (ncursor < es->linelen - 1 &&
- ksh_isspace(es->cbuf[ncursor]))
- ncursor++;
- break;
-
- case '|':
- ncursor = argcnt;
- if (ncursor > es->linelen)
- ncursor = es->linelen;
- if (ncursor)
- ncursor--;
- break;
-
- case '$':
- if (es->linelen != 0)
- ncursor = es->linelen;
- else
- ncursor = 0;
- break;
-
- case '%':
- ncursor = es->cursor;
- while (ncursor < es->linelen &&
- (i = bracktype(es->cbuf[ncursor])) == 0)
- ncursor++;
- if (ncursor == es->linelen)
- return (-1);
- bcount = 1;
- do {
- if (i > 0) {
- if (++ncursor >= es->linelen)
- return (-1);
- } else {
- if (--ncursor < 0)
- return (-1);
- }
- t = bracktype(es->cbuf[ncursor]);
- if (t == i)
- bcount++;
- else if (t == -i)
- bcount--;
- } while (bcount != 0);
- if (sub && i > 0)
- ncursor++;
- break;
-
- default:
- return (-1);
- }
- return (ncursor);
-}
-
-static int
-redo_insert(int count)
-{
- while (count-- > 0)
- if (putbuf(ibuf, inslen, tobool(insert == REPLACE)) != 0)
- return (-1);
- if (es->cursor > 0)
- es->cursor--;
- insert = 0;
- return (0);
-}
-
-static void
-yank_range(int a, int b)
-{
- yanklen = b - a;
- if (yanklen != 0)
- memmove(ybuf, &es->cbuf[a], yanklen);
-}
-
-static int
-bracktype(int ch)
-{
- switch (ch) {
-
- case '(':
- return (1);
-
- case '[':
- return (2);
-
- case '{':
- return (3);
-
- case ')':
- return (-1);
-
- case ']':
- return (-2);
-
- case '}':
- return (-3);
-
- default:
- return (0);
- }
-}
-
-/*
- * Non user interface editor routines below here
- */
-
-static void
-save_cbuf(void)
-{
- memmove(holdbufp, es->cbuf, es->linelen);
- holdlen = es->linelen;
- holdbufp[holdlen] = '\0';
-}
-
-static void
-restore_cbuf(void)
-{
- es->cursor = 0;
- es->linelen = holdlen;
- memmove(es->cbuf, holdbufp, holdlen);
-}
-
-/* return a new edstate */
-static struct edstate *
-save_edstate(struct edstate *old)
-{
- struct edstate *news;
-
- news = alloc(sizeof(struct edstate), AEDIT);
- news->cbuf = alloc(old->cbufsize, AEDIT);
- memcpy(news->cbuf, old->cbuf, old->linelen);
- news->cbufsize = old->cbufsize;
- news->linelen = old->linelen;
- news->cursor = old->cursor;
- news->winleft = old->winleft;
- return (news);
-}
-
-static void
-restore_edstate(struct edstate *news, struct edstate *old)
-{
- memcpy(news->cbuf, old->cbuf, old->linelen);
- news->linelen = old->linelen;
- news->cursor = old->cursor;
- news->winleft = old->winleft;
- free_edstate(old);
-}
-
-static void
-free_edstate(struct edstate *old)
-{
- afree(old->cbuf, AEDIT);
- afree(old, AEDIT);
-}
-
-/*
- * this is used for calling x_escape() in complete_word()
- */
-static int
-x_vi_putbuf(const char *s, size_t len)
-{
- return (putbuf(s, len, false));
-}
-
-static int
-putbuf(const char *buf, ssize_t len, bool repl)
-{
- if (len == 0)
- return (0);
- if (repl) {
- if (es->cursor + len >= es->cbufsize)
- return (-1);
- if (es->cursor + len > es->linelen)
- es->linelen = es->cursor + len;
- } else {
- if (es->linelen + len >= es->cbufsize)
- return (-1);
- memmove(&es->cbuf[es->cursor + len], &es->cbuf[es->cursor],
- es->linelen - es->cursor);
- es->linelen += len;
- }
- memmove(&es->cbuf[es->cursor], buf, len);
- es->cursor += len;
- return (0);
-}
-
-static void
-del_range(int a, int b)
-{
- if (es->linelen != b)
- memmove(&es->cbuf[a], &es->cbuf[b], es->linelen - b);
- es->linelen -= b - a;
-}
-
-static int
-findch(int ch, int cnt, bool forw, bool incl)
-{
- int ncursor;
-
- if (es->linelen == 0)
- return (-1);
- ncursor = es->cursor;
- while (cnt--) {
- do {
- if (forw) {
- if (++ncursor == es->linelen)
- return (-1);
- } else {
- if (--ncursor < 0)
- return (-1);
- }
- } while (es->cbuf[ncursor] != ch);
- }
- if (!incl) {
- if (forw)
- ncursor--;
- else
- ncursor++;
- }
- return (ncursor);
-}
-
-static int
-forwword(int argcnt)
-{
- int ncursor;
-
- ncursor = es->cursor;
- while (ncursor < es->linelen && argcnt--) {
- if (ksh_isalnux(es->cbuf[ncursor]))
- while (ksh_isalnux(es->cbuf[ncursor]) &&
- ncursor < es->linelen)
- ncursor++;
- else if (!ksh_isspace(es->cbuf[ncursor]))
- while (!ksh_isalnux(es->cbuf[ncursor]) &&
- !ksh_isspace(es->cbuf[ncursor]) &&
- ncursor < es->linelen)
- ncursor++;
- while (ksh_isspace(es->cbuf[ncursor]) &&
- ncursor < es->linelen)
- ncursor++;
- }
- return (ncursor);
-}
-
-static int
-backword(int argcnt)
-{
- int ncursor;
-
- ncursor = es->cursor;
- while (ncursor > 0 && argcnt--) {
- while (--ncursor > 0 && ksh_isspace(es->cbuf[ncursor]))
- ;
- if (ncursor > 0) {
- if (ksh_isalnux(es->cbuf[ncursor]))
- while (--ncursor >= 0 &&
- ksh_isalnux(es->cbuf[ncursor]))
- ;
- else
- while (--ncursor >= 0 &&
- !ksh_isalnux(es->cbuf[ncursor]) &&
- !ksh_isspace(es->cbuf[ncursor]))
- ;
- ncursor++;
- }
- }
- return (ncursor);
-}
-
-static int
-endword(int argcnt)
-{
- int ncursor;
-
- ncursor = es->cursor;
- while (ncursor < es->linelen && argcnt--) {
- while (++ncursor < es->linelen - 1 &&
- ksh_isspace(es->cbuf[ncursor]))
- ;
- if (ncursor < es->linelen - 1) {
- if (ksh_isalnux(es->cbuf[ncursor]))
- while (++ncursor < es->linelen &&
- ksh_isalnux(es->cbuf[ncursor]))
- ;
- else
- while (++ncursor < es->linelen &&
- !ksh_isalnux(es->cbuf[ncursor]) &&
- !ksh_isspace(es->cbuf[ncursor]))
- ;
- ncursor--;
- }
- }
- return (ncursor);
-}
-
-static int
-Forwword(int argcnt)
-{
- int ncursor;
-
- ncursor = es->cursor;
- while (ncursor < es->linelen && argcnt--) {
- while (!ksh_isspace(es->cbuf[ncursor]) &&
- ncursor < es->linelen)
- ncursor++;
- while (ksh_isspace(es->cbuf[ncursor]) &&
- ncursor < es->linelen)
- ncursor++;
- }
- return (ncursor);
-}
-
-static int
-Backword(int argcnt)
-{
- int ncursor;
-
- ncursor = es->cursor;
- while (ncursor > 0 && argcnt--) {
- while (--ncursor >= 0 && ksh_isspace(es->cbuf[ncursor]))
- ;
- while (ncursor >= 0 && !ksh_isspace(es->cbuf[ncursor]))
- ncursor--;
- ncursor++;
- }
- return (ncursor);
-}
-
-static int
-Endword(int argcnt)
-{
- int ncursor;
-
- ncursor = es->cursor;
- while (ncursor < es->linelen - 1 && argcnt--) {
- while (++ncursor < es->linelen - 1 &&
- ksh_isspace(es->cbuf[ncursor]))
- ;
- if (ncursor < es->linelen - 1) {
- while (++ncursor < es->linelen &&
- !ksh_isspace(es->cbuf[ncursor]))
- ;
- ncursor--;
- }
- }
- return (ncursor);
-}
-
-static int
-grabhist(int save, int n)
-{
- char *hptr;
-
- if (n < 0 || n > hlast)
- return (-1);
- if (n == hlast) {
- restore_cbuf();
- ohnum = n;
- return (0);
- }
- (void)histnum(n);
- if ((hptr = *histpos()) == NULL) {
- internal_warningf("%s: %s", "grabhist", "bad history array");
- return (-1);
- }
- if (save)
- save_cbuf();
- if ((es->linelen = strlen(hptr)) >= es->cbufsize)
- es->linelen = es->cbufsize - 1;
- memmove(es->cbuf, hptr, es->linelen);
- es->cursor = 0;
- ohnum = n;
- return (0);
-}
-
-static int
-grabsearch(int save, int start, int fwd, const char *pat)
-{
- char *hptr;
- int hist;
- int anchored;
-
- if ((start == 0 && fwd == 0) || (start >= hlast - 1 && fwd == 1))
- return (-1);
- if (fwd)
- start++;
- else
- start--;
- anchored = *pat == '^' ? (++pat, 1) : 0;
- if ((hist = findhist(start, fwd, pat, anchored)) < 0) {
- /* (start != 0 && fwd && match(holdbufp, pat) >= 0) */
- if (start != 0 && fwd && strcmp(holdbufp, pat) >= 0) {
- restore_cbuf();
- return (0);
- } else
- return (-1);
- }
- if (save)
- save_cbuf();
- histnum(hist);
- hptr = *histpos();
- if ((es->linelen = strlen(hptr)) >= es->cbufsize)
- es->linelen = es->cbufsize - 1;
- memmove(es->cbuf, hptr, es->linelen);
- es->cursor = 0;
- return (hist);
-}
-
-static void
-redraw_line(bool newl)
-{
- if (wbuf_len)
- memset(wbuf[win], ' ', wbuf_len);
- if (newl) {
- x_putc('\r');
- x_putc('\n');
- }
- if (prompt_trunc != -1)
- pprompt(prompt, prompt_trunc);
- x_col = pwidth;
- morec = ' ';
-}
-
-static void
-refresh(int leftside)
-{
- if (leftside < 0)
- leftside = lastref;
- else
- lastref = leftside;
- if (outofwin())
- rewindow();
- display(wbuf[1 - win], wbuf[win], leftside);
- win = 1 - win;
-}
-
-static int
-outofwin(void)
-{
- int cur, col;
-
- if (es->cursor < es->winleft)
- return (1);
- col = 0;
- cur = es->winleft;
- while (cur < es->cursor)
- col = newcol((unsigned char)es->cbuf[cur++], col);
- if (col >= winwidth)
- return (1);
- return (0);
-}
-
-static void
-rewindow(void)
-{
- int tcur, tcol;
- int holdcur1, holdcol1;
- int holdcur2, holdcol2;
-
- holdcur1 = holdcur2 = tcur = 0;
- holdcol1 = holdcol2 = tcol = 0;
- while (tcur < es->cursor) {
- if (tcol - holdcol2 > winwidth / 2) {
- holdcur1 = holdcur2;
- holdcol1 = holdcol2;
- holdcur2 = tcur;
- holdcol2 = tcol;
- }
- tcol = newcol((unsigned char)es->cbuf[tcur++], tcol);
- }
- while (tcol - holdcol1 > winwidth / 2)
- holdcol1 = newcol((unsigned char)es->cbuf[holdcur1++],
- holdcol1);
- es->winleft = holdcur1;
-}
-
-static int
-newcol(int ch, int col)
-{
- if (ch == '\t')
- return ((col | 7) + 1);
- return (col + char_len(ch));
-}
-
-static void
-display(char *wb1, char *wb2, int leftside)
-{
- unsigned char ch;
- char *twb1, *twb2, mc;
- int cur, col, cnt;
- int ncol = 0;
- int moreright;
-
- col = 0;
- cur = es->winleft;
- moreright = 0;
- twb1 = wb1;
- while (col < winwidth && cur < es->linelen) {
- if (cur == es->cursor && leftside)
- ncol = col + pwidth;
- if ((ch = es->cbuf[cur]) == '\t')
- do {
- *twb1++ = ' ';
- } while (++col < winwidth && (col & 7) != 0);
- else if (col < winwidth) {
- if (ch < ' ' || ch == 0x7f) {
- *twb1++ = '^';
- if (++col < winwidth) {
- *twb1++ = ch ^ '@';
- col++;
- }
- } else {
- *twb1++ = ch;
- col++;
- }
- }
- if (cur == es->cursor && !leftside)
- ncol = col + pwidth - 1;
- cur++;
- }
- if (cur == es->cursor)
- ncol = col + pwidth;
- if (col < winwidth) {
- while (col < winwidth) {
- *twb1++ = ' ';
- col++;
- }
- } else
- moreright++;
- *twb1 = ' ';
-
- col = pwidth;
- cnt = winwidth;
- twb1 = wb1;
- twb2 = wb2;
- while (cnt--) {
- if (*twb1 != *twb2) {
- if (x_col != col)
- ed_mov_opt(col, wb1);
- x_putc(*twb1);
- x_col++;
- }
- twb1++;
- twb2++;
- col++;
- }
- if (es->winleft > 0 && moreright)
- /*
- * POSIX says to use * for this but that is a globbing
- * character and may confuse people; + is more innocuous
- */
- mc = '+';
- else if (es->winleft > 0)
- mc = '<';
- else if (moreright)
- mc = '>';
- else
- mc = ' ';
- if (mc != morec) {
- ed_mov_opt(pwidth + winwidth + 1, wb1);
- x_putc(mc);
- x_col++;
- morec = mc;
- }
- if (x_col != ncol)
- ed_mov_opt(ncol, wb1);
-}
-
-static void
-ed_mov_opt(int col, char *wb)
-{
- if (col < x_col) {
- if (col + 1 < x_col - col) {
- x_putc('\r');
- if (prompt_trunc != -1)
- pprompt(prompt, prompt_trunc);
- x_col = pwidth;
- while (x_col++ < col)
- x_putcf(*wb++);
- } else {
- while (x_col-- > col)
- x_putc('\b');
- }
- } else {
- wb = &wb[x_col - pwidth];
- while (x_col++ < col)
- x_putcf(*wb++);
- }
- x_col = col;
-}
-
-
-/* replace word with all expansions (ie, expand word*) */
-static int
-expand_word(int cmd)
-{
- static struct edstate *buf;
- int rval = 0, nwords, start, end, i;
- char **words;
-
- /* Undo previous expansion */
- if (cmd == 0 && expanded == EXPAND && buf) {
- restore_edstate(es, buf);
- buf = 0;
- expanded = NONE;
- return (0);
- }
- if (buf) {
- free_edstate(buf);
- buf = 0;
- }
-
- i = XCF_COMMAND_FILE | XCF_FULLPATH;
- nwords = x_cf_glob(&i, es->cbuf, es->linelen, es->cursor,
- &start, &end, &words);
- if (nwords == 0) {
- vi_error();
- return (-1);
- }
-
- buf = save_edstate(es);
- expanded = EXPAND;
- del_range(start, end);
- es->cursor = start;
- i = 0;
- while (i < nwords) {
- if (x_escape(words[i], strlen(words[i]), x_vi_putbuf) != 0) {
- rval = -1;
- break;
- }
- if (++i < nwords && putbuf(" ", 1, false) != 0) {
- rval = -1;
- break;
- }
- }
- i = buf->cursor - end;
- if (rval == 0 && i > 0)
- es->cursor += i;
- modified = 1;
- hnum = hlast;
- insert = INSERT;
- lastac = 0;
- refresh(0);
- return (rval);
-}
-
-static int
-complete_word(int cmd, int count)
-{
- static struct edstate *buf;
- int rval, nwords, start, end, flags;
- size_t match_len;
- char **words;
- char *match;
- bool is_unique;
-
- /* Undo previous completion */
- if (cmd == 0 && expanded == COMPLETE && buf) {
- print_expansions(buf, 0);
- expanded = PRINT;
- return (0);
- }
- if (cmd == 0 && expanded == PRINT && buf) {
- restore_edstate(es, buf);
- buf = 0;
- expanded = NONE;
- return (0);
- }
- if (buf) {
- free_edstate(buf);
- buf = 0;
- }
-
- /*
- * XCF_FULLPATH for count 'cause the menu printed by
- * print_expansions() was done this way.
- */
- flags = XCF_COMMAND_FILE;
- if (count)
- flags |= XCF_FULLPATH;
- nwords = x_cf_glob(&flags, es->cbuf, es->linelen, es->cursor,
- &start, &end, &words);
- if (nwords == 0) {
- vi_error();
- return (-1);
- }
- if (count) {
- int i;
-
- count--;
- if (count >= nwords) {
- vi_error();
- x_print_expansions(nwords, words,
- tobool(flags & XCF_IS_COMMAND));
- x_free_words(nwords, words);
- redraw_line(false);
- return (-1);
- }
- /*
- * Expand the count'th word to its basename
- */
- if (flags & XCF_IS_COMMAND) {
- match = words[count] +
- x_basename(words[count], NULL);
- /* If more than one possible match, use full path */
- for (i = 0; i < nwords; i++)
- if (i != count &&
- strcmp(words[i] + x_basename(words[i],
- NULL), match) == 0) {
- match = words[count];
- break;
- }
- } else
- match = words[count];
- match_len = strlen(match);
- is_unique = true;
- /* expanded = PRINT; next call undo */
- } else {
- match = words[0];
- match_len = x_longest_prefix(nwords, words);
- /* next call will list completions */
- expanded = COMPLETE;
- is_unique = nwords == 1;
- }
-
- buf = save_edstate(es);
- del_range(start, end);
- es->cursor = start;
-
- /*
- * escape all shell-sensitive characters and put the result into
- * command buffer
- */
- rval = x_escape(match, match_len, x_vi_putbuf);
-
- if (rval == 0 && is_unique) {
- /*
- * If exact match, don't undo. Allows directory completions
- * to be used (ie, complete the next portion of the path).
- */
- expanded = NONE;
-
- /*
- * append a space if this is a non-directory match
- * and not a parameter or homedir substitution
- */
- if (match_len > 0 && match[match_len - 1] != '/' &&
- !(flags & XCF_IS_NOSPACE))
- rval = putbuf(" ", 1, false);
- }
- x_free_words(nwords, words);
-
- modified = 1;
- hnum = hlast;
- insert = INSERT;
- /* prevent this from being redone... */
- lastac = 0;
- refresh(0);
-
- return (rval);
-}
-
-static int
-print_expansions(struct edstate *est, int cmd MKSH_A_UNUSED)
-{
- int start, end, nwords, i;
- char **words;
-
- i = XCF_COMMAND_FILE | XCF_FULLPATH;
- nwords = x_cf_glob(&i, est->cbuf, est->linelen, est->cursor,
- &start, &end, &words);
- if (nwords == 0) {
- vi_error();
- return (-1);
- }
- x_print_expansions(nwords, words, tobool(i & XCF_IS_COMMAND));
- x_free_words(nwords, words);
- redraw_line(false);
- return (0);
-}
-
-/* Similar to x_zotc(emacs.c), but no tab weirdness */
-static void
-x_vi_zotc(int c)
-{
- if (c < ' ' || c == 0x7f) {
- x_putc('^');
- c ^= '@';
- }
- x_putc(c);
-}
-
-static void
-vi_error(void)
-{
- /* Beem out of any macros as soon as an error occurs */
- vi_macro_reset();
- x_putc(7);
- x_flush();
-}
-
-static void
-vi_macro_reset(void)
-{
- if (macro.p) {
- afree(macro.buf, AEDIT);
- memset((char *)¯o, 0, sizeof(macro));
- }
-}
-#endif /* !MKSH_S_NOVI */
-
-/* called from main.c */
-void
-x_init(void)
-{
- int i, j;
-
- /*
- * Set edchars to -2 to force initial binding, except
- * we need default values for some deficient systems…
- */
- edchars.erase = edchars.kill = edchars.intr = edchars.quit =
- edchars.eof = -2;
- /* ^W */
- edchars.werase = 027;
-
- /* command line editing specific memory allocation */
- ainit(AEDIT);
- holdbufp = alloc(LINE, AEDIT);
-
- /* initialise Emacs command line editing mode */
- x_nextcmd = -1;
-
- x_tab = alloc2(X_NTABS, sizeof(*x_tab), AEDIT);
- for (j = 0; j < X_TABSZ; j++)
- x_tab[0][j] = XFUNC_insert;
- for (i = 1; i < X_NTABS; i++)
- for (j = 0; j < X_TABSZ; j++)
- x_tab[i][j] = XFUNC_error;
- for (i = 0; i < (int)NELEM(x_defbindings); i++)
- x_tab[x_defbindings[i].xdb_tab][x_defbindings[i].xdb_char]
- = x_defbindings[i].xdb_func;
-
-#ifndef MKSH_SMALL
- x_atab = alloc2(X_NTABS, sizeof(*x_atab), AEDIT);
- for (i = 1; i < X_NTABS; i++)
- for (j = 0; j < X_TABSZ; j++)
- x_atab[i][j] = NULL;
-#endif
-}
-
-#ifdef DEBUG_LEAKS
-void
-x_done(void)
-{
- if (x_tab != NULL)
- afreeall(AEDIT);
-}
-#endif
-#endif /* !MKSH_NO_CMDLINE_EDITING */
Copied: vendor/MirOS/mksh/R50/edit.c (from rev 6707, vendor/MirOS/mksh/dist/edit.c)
===================================================================
--- vendor/MirOS/mksh/R50/edit.c (rev 0)
+++ vendor/MirOS/mksh/R50/edit.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,5502 @@
+/* $OpenBSD: edit.c,v 1.39 2013/12/17 16:37:05 deraadt Exp $ */
+/* $OpenBSD: edit.h,v 1.9 2011/05/30 17:14:35 martynas Exp $ */
+/* $OpenBSD: emacs.c,v 1.48 2013/12/17 16:37:05 deraadt Exp $ */
+/* $OpenBSD: vi.c,v 1.28 2013/12/18 16:45:46 deraadt Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+
+#ifndef MKSH_NO_CMDLINE_EDITING
+
+__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.275 2014/01/05 21:57:24 tg Exp $");
+
+/*
+ * in later versions we might use libtermcap for this, but since external
+ * dependencies are problematic, this has not yet been decided on; another
+ * good string is "\033c" except on hardware terminals like the DEC VT420
+ * which do a full power cycle then...
+ */
+#ifndef MKSH_CLS_STRING
+#define MKSH_CLS_STRING "\033[;H\033[J"
+#endif
+#ifndef MKSH_CLRTOEOL_STRING
+#define MKSH_CLRTOEOL_STRING "\033[K"
+#endif
+
+/* tty driver characters we are interested in */
+typedef struct {
+ int erase;
+ int kill;
+ int werase;
+ int intr;
+ int quit;
+ int eof;
+} X_chars;
+
+static X_chars edchars;
+
+/* x_cf_glob() flags */
+#define XCF_COMMAND BIT(0) /* Do command completion */
+#define XCF_FILE BIT(1) /* Do file completion */
+#define XCF_FULLPATH BIT(2) /* command completion: store full path */
+#define XCF_COMMAND_FILE (XCF_COMMAND | XCF_FILE)
+#define XCF_IS_COMMAND BIT(3) /* return flag: is command */
+#define XCF_IS_NOSPACE BIT(4) /* return flag: do not append a space */
+
+static char editmode;
+static int xx_cols; /* for Emacs mode */
+static int modified; /* buffer has been "modified" */
+static char *holdbufp; /* place to hold last edit buffer */
+
+static int x_getc(void);
+static void x_putcf(int);
+static void x_modified(void);
+static void x_mode(bool);
+static int x_do_comment(char *, ssize_t, ssize_t *);
+static void x_print_expansions(int, char * const *, bool);
+static int x_cf_glob(int *, const char *, int, int, int *, int *, char ***);
+static size_t x_longest_prefix(int, char * const *);
+static void x_glob_hlp_add_qchar(char *);
+static char *x_glob_hlp_tilde_and_rem_qchar(char *, bool);
+static int x_basename(const char *, const char *);
+static void x_free_words(int, char **);
+static int x_escape(const char *, size_t, int (*)(const char *, size_t));
+static int x_emacs(char *);
+static void x_init_prompt(bool);
+#if !MKSH_S_NOVI
+static int x_vi(char *);
+#endif
+
+#define x_flush() shf_flush(shl_out)
+#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
+#define x_putc(c) x_putcf(c)
+#else
+#define x_putc(c) shf_putc((c), shl_out)
+#endif
+
+static int path_order_cmp(const void *, const void *);
+static void glob_table(const char *, XPtrV *, struct table *);
+static void glob_path(int, const char *, XPtrV *, const char *);
+static int x_file_glob(int *, char *, char ***);
+static int x_command_glob(int, char *, char ***);
+static int x_locate_word(const char *, int, int, int *, bool *);
+
+static int x_e_getmbc(char *);
+static int x_e_rebuildline(const char *);
+
+/* +++ generic editing functions +++ */
+
+/*
+ * read an edited command line
+ */
+int
+x_read(char *buf)
+{
+ int i;
+
+ x_mode(true);
+ modified = 1;
+ if (Flag(FEMACS) || Flag(FGMACS))
+ i = x_emacs(buf);
+#if !MKSH_S_NOVI
+ else if (Flag(FVI))
+ i = x_vi(buf);
+#endif
+ else
+ /* internal error */
+ i = -1;
+ editmode = 0;
+ x_mode(false);
+ return (i);
+}
+
+/* tty I/O */
+
+static int
+x_getc(void)
+{
+ char c;
+ ssize_t n;
+
+ while ((n = blocking_read(STDIN_FILENO, &c, 1)) < 0 && errno == EINTR)
+ if (trap) {
+ x_mode(false);
+ runtraps(0);
+#ifdef SIGWINCH
+ if (got_winch) {
+ change_winsz();
+ if (x_cols != xx_cols && editmode == 1) {
+ /* redraw line in Emacs mode */
+ xx_cols = x_cols;
+ x_init_prompt(false);
+ x_e_rebuildline(MKSH_CLRTOEOL_STRING);
+ }
+ }
+#endif
+ x_mode(true);
+ }
+ return ((n == 1) ? (int)(unsigned char)c : -1);
+}
+
+static void
+x_putcf(int c)
+{
+ shf_putc(c, shl_out);
+}
+
+/*********************************
+ * Misc common code for vi/emacs *
+ *********************************/
+
+/*-
+ * Handle the commenting/uncommenting of a line.
+ * Returns:
+ * 1 if a carriage return is indicated (comment added)
+ * 0 if no return (comment removed)
+ * -1 if there is an error (not enough room for comment chars)
+ * If successful, *lenp contains the new length. Note: cursor should be
+ * moved to the start of the line after (un)commenting.
+ */
+static int
+x_do_comment(char *buf, ssize_t bsize, ssize_t *lenp)
+{
+ ssize_t i, j, len = *lenp;
+
+ if (len == 0)
+ /* somewhat arbitrary - it's what AT&T ksh does */
+ return (1);
+
+ /* Already commented? */
+ if (buf[0] == '#') {
+ bool saw_nl = false;
+
+ for (j = 0, i = 1; i < len; i++) {
+ if (!saw_nl || buf[i] != '#')
+ buf[j++] = buf[i];
+ saw_nl = buf[i] == '\n';
+ }
+ *lenp = j;
+ return (0);
+ } else {
+ int n = 1;
+
+ /* See if there's room for the #s - 1 per \n */
+ for (i = 0; i < len; i++)
+ if (buf[i] == '\n')
+ n++;
+ if (len + n >= bsize)
+ return (-1);
+ /* Now add them... */
+ for (i = len, j = len + n; --i >= 0; ) {
+ if (buf[i] == '\n')
+ buf[--j] = '#';
+ buf[--j] = buf[i];
+ }
+ buf[0] = '#';
+ *lenp += n;
+ return (1);
+ }
+}
+
+/****************************************************
+ * Common file/command completion code for vi/emacs *
+ ****************************************************/
+
+static void
+x_print_expansions(int nwords, char * const *words, bool is_command)
+{
+ bool use_copy = false;
+ int prefix_len;
+ XPtrV l = { NULL, 0, 0 };
+
+ /*
+ * Check if all matches are in the same directory (in this
+ * case, we want to omit the directory name)
+ */
+ if (!is_command &&
+ (prefix_len = x_longest_prefix(nwords, words)) > 0) {
+ int i;
+
+ /* Special case for 1 match (prefix is whole word) */
+ if (nwords == 1)
+ prefix_len = x_basename(words[0], NULL);
+ /* Any (non-trailing) slashes in non-common word suffixes? */
+ for (i = 0; i < nwords; i++)
+ if (x_basename(words[i] + prefix_len, NULL) >
+ prefix_len)
+ break;
+ /* All in same directory? */
+ if (i == nwords) {
+ while (prefix_len > 0 && words[0][prefix_len - 1] != '/')
+ prefix_len--;
+ use_copy = true;
+ XPinit(l, nwords + 1);
+ for (i = 0; i < nwords; i++)
+ XPput(l, words[i] + prefix_len);
+ XPput(l, NULL);
+ }
+ }
+ /*
+ * Enumerate expansions
+ */
+ x_putc('\r');
+ x_putc('\n');
+ pr_list(use_copy ? (char **)XPptrv(l) : words);
+
+ if (use_copy)
+ /* not x_free_words() */
+ XPfree(l);
+}
+
+/*
+ * Convert backslash-escaped string to QCHAR-escaped
+ * string useful for globbing; loses QCHAR unless it
+ * can squeeze in, eg. by previous loss of backslash
+ */
+static void
+x_glob_hlp_add_qchar(char *cp)
+{
+ char ch, *dp = cp;
+ bool escaping = false;
+
+ while ((ch = *cp++)) {
+ if (ch == '\\' && !escaping) {
+ escaping = true;
+ continue;
+ }
+ if (escaping || (ch == QCHAR && (cp - dp) > 1)) {
+ /*
+ * empirically made list of chars to escape
+ * for globbing as well as QCHAR itself
+ */
+ switch (ch) {
+ case QCHAR:
+ case '$':
+ case '*':
+ case '?':
+ case '[':
+ case '\\':
+ case '`':
+ *dp++ = QCHAR;
+ break;
+ }
+ escaping = false;
+ }
+ *dp++ = ch;
+ }
+ *dp = '\0';
+}
+
+/*
+ * Run tilde expansion on argument string, return the result
+ * after unescaping; if the flag is set, the original string
+ * is freed if changed and assumed backslash-escaped, if not
+ * it is assumed QCHAR-escaped
+ */
+static char *
+x_glob_hlp_tilde_and_rem_qchar(char *s, bool magic_flag)
+{
+ char ch, *cp, *dp;
+
+ /*
+ * On the string, check whether we have a tilde expansion,
+ * and if so, discern "~foo/bar" and "~/baz" from "~blah";
+ * if we have a directory part (the former), try to expand
+ */
+ if (*s == '~' && (cp = strchr(s, '/')) != NULL) {
+ /* ok, so split into "~foo"/"bar" or "~"/"baz" */
+ *cp++ = 0;
+ /* try to expand the tilde */
+ if (!(dp = tilde(s + 1))) {
+ /* nope, revert damage */
+ *--cp = '/';
+ } else {
+ /* ok, expand and replace */
+ cp = shf_smprintf("%s/%s", dp, cp);
+ if (magic_flag)
+ afree(s, ATEMP);
+ s = cp;
+ }
+ }
+
+ /* ... convert it from backslash-escaped via QCHAR-escaped... */
+ if (magic_flag)
+ x_glob_hlp_add_qchar(s);
+ /* ... to unescaped, for comparison with the matches */
+ cp = dp = s;
+
+ while ((ch = *cp++)) {
+ if (ch == QCHAR && !(ch = *cp++))
+ break;
+ *dp++ = ch;
+ }
+ *dp = '\0';
+
+ return (s);
+}
+
+/**
+ * Do file globbing:
+ * - does expansion, checks for no match, etc.
+ * - sets *wordsp to array of matching strings
+ * - returns number of matching strings
+ */
+static int
+x_file_glob(int *flagsp, char *toglob, char ***wordsp)
+{
+ char **words, *cp;
+ int nwords;
+ XPtrV w;
+ struct source *s, *sold;
+
+ /* remove all escaping backward slashes */
+ x_glob_hlp_add_qchar(toglob);
+
+ /*
+ * Convert "foo*" (toglob) to an array of strings (words)
+ */
+ sold = source;
+ s = pushs(SWSTR, ATEMP);
+ s->start = s->str = toglob;
+ source = s;
+ if (yylex(ONEWORD | LQCHAR) != LWORD) {
+ source = sold;
+ internal_warningf("%s: %s", "fileglob", "bad substitution");
+ return (0);
+ }
+ source = sold;
+ afree(s, ATEMP);
+ XPinit(w, 32);
+ cp = yylval.cp;
+ while (*cp == CHAR || *cp == QCHAR)
+ cp += 2;
+ nwords = DOGLOB | DOTILDE | DOMARKDIRS;
+ if (*cp != EOS) {
+ /* probably a $FOO expansion */
+ *flagsp |= XCF_IS_NOSPACE;
+ /* this always results in at most one match */
+ nwords = 0;
+ }
+ expand(yylval.cp, &w, nwords);
+ XPput(w, NULL);
+ words = (char **)XPclose(w);
+
+ for (nwords = 0; words[nwords]; nwords++)
+ ;
+ if (nwords == 1) {
+ struct stat statb;
+
+ /* Expand any tilde and drop all QCHAR for comparison */
+ toglob = x_glob_hlp_tilde_and_rem_qchar(toglob, false);
+
+ /*
+ * Check if globbing failed (returned glob pattern),
+ * but be careful (e.g. toglob == "ab*" when the file
+ * "ab*" exists is not an error).
+ * Also, check for empty result - happens if we tried
+ * to glob something which evaluated to an empty
+ * string (e.g., "$FOO" when there is no FOO, etc).
+ */
+ if ((strcmp(words[0], toglob) == 0 &&
+ stat(words[0], &statb) < 0) ||
+ words[0][0] == '\0') {
+ x_free_words(nwords, words);
+ words = NULL;
+ nwords = 0;
+ }
+ }
+
+ if ((*wordsp = nwords ? words : NULL) == NULL && words != NULL)
+ x_free_words(nwords, words);
+
+ return (nwords);
+}
+
+/* Data structure used in x_command_glob() */
+struct path_order_info {
+ char *word;
+ int base;
+ int path_order;
+};
+
+/* Compare routine used in x_command_glob() */
+static int
+path_order_cmp(const void *aa, const void *bb)
+{
+ const struct path_order_info *a = (const struct path_order_info *)aa;
+ const struct path_order_info *b = (const struct path_order_info *)bb;
+ int t;
+
+ t = strcmp(a->word + a->base, b->word + b->base);
+ return (t ? t : a->path_order - b->path_order);
+}
+
+static int
+x_command_glob(int flags, char *toglob, char ***wordsp)
+{
+ char *pat, *fpath;
+ size_t nwords;
+ XPtrV w;
+ struct block *l;
+
+ /* Convert "foo*" (toglob) to a pattern for future use */
+ pat = evalstr(toglob, DOPAT | DOTILDE);
+
+ XPinit(w, 32);
+
+ glob_table(pat, &w, &keywords);
+ glob_table(pat, &w, &aliases);
+ glob_table(pat, &w, &builtins);
+ for (l = e->loc; l; l = l->next)
+ glob_table(pat, &w, &l->funs);
+
+ glob_path(flags, pat, &w, path);
+ if ((fpath = str_val(global("FPATH"))) != null)
+ glob_path(flags, pat, &w, fpath);
+
+ nwords = XPsize(w);
+
+ if (!nwords) {
+ *wordsp = NULL;
+ XPfree(w);
+ return (0);
+ }
+ /* Sort entries */
+ if (flags & XCF_FULLPATH) {
+ /* Sort by basename, then path order */
+ struct path_order_info *info, *last_info = NULL;
+ char **words = (char **)XPptrv(w);
+ size_t i, path_order = 0;
+
+ info = (struct path_order_info *)
+ alloc2(nwords, sizeof(struct path_order_info), ATEMP);
+ for (i = 0; i < nwords; i++) {
+ info[i].word = words[i];
+ info[i].base = x_basename(words[i], NULL);
+ if (!last_info || info[i].base != last_info->base ||
+ strncmp(words[i], last_info->word, info[i].base) != 0) {
+ last_info = &info[i];
+ path_order++;
+ }
+ info[i].path_order = path_order;
+ }
+ qsort(info, nwords, sizeof(struct path_order_info),
+ path_order_cmp);
+ for (i = 0; i < nwords; i++)
+ words[i] = info[i].word;
+ afree(info, ATEMP);
+ } else {
+ /* Sort and remove duplicate entries */
+ char **words = (char **)XPptrv(w);
+ size_t i, j;
+
+ qsort(words, nwords, sizeof(void *), xstrcmp);
+ for (i = j = 0; i < nwords - 1; i++) {
+ if (strcmp(words[i], words[i + 1]))
+ words[j++] = words[i];
+ else
+ afree(words[i], ATEMP);
+ }
+ words[j++] = words[i];
+ w.len = nwords = j;
+ }
+
+ XPput(w, NULL);
+ *wordsp = (char **)XPclose(w);
+
+ return (nwords);
+}
+
+#define IS_WORDC(c) (!ctype(c, C_LEX1) && (c) != '\'' && (c) != '"' && \
+ (c) != '`' && (c) != '=' && (c) != ':')
+
+static int
+x_locate_word(const char *buf, int buflen, int pos, int *startp,
+ bool *is_commandp)
+{
+ int start, end;
+
+ /* Bad call? Probably should report error */
+ if (pos < 0 || pos > buflen) {
+ *startp = pos;
+ *is_commandp = false;
+ return (0);
+ }
+ /* The case where pos == buflen happens to take care of itself... */
+
+ start = pos;
+ /*
+ * Keep going backwards to start of word (has effect of allowing
+ * one blank after the end of a word)
+ */
+ for (; (start > 0 && IS_WORDC(buf[start - 1])) ||
+ (start > 1 && buf[start - 2] == '\\'); start--)
+ ;
+ /* Go forwards to end of word */
+ for (end = start; end < buflen && IS_WORDC(buf[end]); end++) {
+ if (buf[end] == '\\' && (end + 1) < buflen)
+ end++;
+ }
+
+ if (is_commandp) {
+ bool iscmd;
+ int p = start - 1;
+
+ /* Figure out if this is a command */
+ while (p >= 0 && ksh_isspace(buf[p]))
+ p--;
+ iscmd = p < 0 || vstrchr(";|&()`", buf[p]);
+ if (iscmd) {
+ /*
+ * If command has a /, path, etc. is not searched;
+ * only current directory is searched which is just
+ * like file globbing.
+ */
+ for (p = start; p < end; p++)
+ if (buf[p] == '/')
+ break;
+ iscmd = p == end;
+ }
+ *is_commandp = iscmd;
+ }
+ *startp = start;
+
+ return (end - start);
+}
+
+static int
+x_cf_glob(int *flagsp, const char *buf, int buflen, int pos, int *startp,
+ int *endp, char ***wordsp)
+{
+ int len, nwords = 0;
+ char **words = NULL;
+ bool is_command;
+
+ mkssert(buf != NULL);
+
+ len = x_locate_word(buf, buflen, pos, startp, &is_command);
+ if (!((*flagsp) & XCF_COMMAND))
+ is_command = false;
+ /*
+ * Don't do command globing on zero length strings - it takes too
+ * long and isn't very useful. File globs are more likely to be
+ * useful, so allow these.
+ */
+ if (len == 0 && is_command)
+ return (0);
+
+ if (len >= 0) {
+ char *toglob, *s;
+
+ /*
+ * Given a string, copy it and possibly add a '*' to the end.
+ */
+
+ strndupx(toglob, buf + *startp, len + /* the '*' */ 1, ATEMP);
+ toglob[len] = '\0';
+
+ /*
+ * If the pathname contains a wildcard (an unquoted '*',
+ * '?', or '[') or an extglob, then it is globbed based
+ * on that value (i.e., without the appended '*'). Same
+ * for parameter substitutions (as in “cat $HOME/.ss↹”)
+ * without appending a trailing space (LP: #710539), as
+ * well as for “~foo” (but not “~foo/”).
+ */
+ for (s = toglob; *s; s++) {
+ if (*s == '\\' && s[1])
+ s++;
+ else if (*s == '?' || *s == '*' || *s == '[' ||
+ *s == '$' ||
+ /* ?() *() +() @() !() but two already checked */
+ (s[1] == '(' /*)*/ &&
+ (*s == '+' || *s == '@' || *s == '!'))) {
+ /*
+ * just expand based on the extglob
+ * or parameter
+ */
+ goto dont_add_glob;
+ }
+ }
+
+ if (*toglob == '~' && !vstrchr(toglob, '/')) {
+ /* neither for '~foo' (but '~foo/bar') */
+ *flagsp |= XCF_IS_NOSPACE;
+ goto dont_add_glob;
+ }
+
+ /* append a glob */
+ toglob[len] = '*';
+ toglob[len + 1] = '\0';
+ dont_add_glob:
+ /*
+ * Expand (glob) it now.
+ */
+
+ nwords = is_command ?
+ x_command_glob(*flagsp, toglob, &words) :
+ x_file_glob(flagsp, toglob, &words);
+ afree(toglob, ATEMP);
+ }
+ if (nwords == 0) {
+ *wordsp = NULL;
+ return (0);
+ }
+ if (is_command)
+ *flagsp |= XCF_IS_COMMAND;
+ *wordsp = words;
+ *endp = *startp + len;
+
+ return (nwords);
+}
+
+/*
+ * Find longest common prefix
+ */
+static size_t
+x_longest_prefix(int nwords, char * const * words)
+{
+ int i;
+ size_t j, prefix_len;
+ char *p;
+
+ if (nwords <= 0)
+ return (0);
+
+ prefix_len = strlen(words[0]);
+ for (i = 1; i < nwords; i++)
+ for (j = 0, p = words[i]; j < prefix_len; j++)
+ if (p[j] != words[0][j]) {
+ prefix_len = j;
+ break;
+ }
+ /* false for nwords==1 as 0 = words[0][prefix_len] then */
+ if (UTFMODE && prefix_len && (words[0][prefix_len] & 0xC0) == 0x80)
+ while (prefix_len && (words[0][prefix_len] & 0xC0) != 0xC0)
+ --prefix_len;
+ return (prefix_len);
+}
+
+static void
+x_free_words(int nwords, char **words)
+{
+ while (nwords)
+ afree(words[--nwords], ATEMP);
+ afree(words, ATEMP);
+}
+
+/*-
+ * Return the offset of the basename of string s (which ends at se - need not
+ * be null terminated). Trailing slashes are ignored. If s is just a slash,
+ * then the offset is 0 (actually, length - 1).
+ * s Return
+ * /etc 1
+ * /etc/ 1
+ * /etc// 1
+ * /etc/fo 5
+ * foo 0
+ * /// 2
+ * 0
+ */
+static int
+x_basename(const char *s, const char *se)
+{
+ const char *p;
+
+ if (se == NULL)
+ se = s + strlen(s);
+ if (s == se)
+ return (0);
+
+ /* Skip trailing slashes */
+ for (p = se - 1; p > s && *p == '/'; p--)
+ ;
+ for (; p > s && *p != '/'; p--)
+ ;
+ if (*p == '/' && p + 1 < se)
+ p++;
+
+ return (p - s);
+}
+
+/*
+ * Apply pattern matching to a table: all table entries that match a pattern
+ * are added to wp.
+ */
+static void
+glob_table(const char *pat, XPtrV *wp, struct table *tp)
+{
+ struct tstate ts;
+ struct tbl *te;
+
+ ktwalk(&ts, tp);
+ while ((te = ktnext(&ts)))
+ if (gmatchx(te->name, pat, false)) {
+ char *cp;
+
+ strdupx(cp, te->name, ATEMP);
+ XPput(*wp, cp);
+ }
+}
+
+static void
+glob_path(int flags, const char *pat, XPtrV *wp, const char *lpath)
+{
+ const char *sp = lpath, *p;
+ char *xp, **words;
+ size_t pathlen, patlen, oldsize, newsize, i, j;
+ XString xs;
+
+ patlen = strlen(pat);
+ checkoktoadd(patlen, 129 + X_EXTRA);
+ ++patlen;
+ Xinit(xs, xp, patlen + 128, ATEMP);
+ while (sp) {
+ xp = Xstring(xs, xp);
+ if (!(p = cstrchr(sp, ':')))
+ p = sp + strlen(sp);
+ pathlen = p - sp;
+ if (pathlen) {
+ /*
+ * Copy sp into xp, stuffing any MAGIC characters
+ * on the way
+ */
+ const char *s = sp;
+
+ XcheckN(xs, xp, pathlen * 2);
+ while (s < p) {
+ if (ISMAGIC(*s))
+ *xp++ = MAGIC;
+ *xp++ = *s++;
+ }
+ *xp++ = '/';
+ pathlen++;
+ }
+ sp = p;
+ XcheckN(xs, xp, patlen);
+ memcpy(xp, pat, patlen);
+
+ oldsize = XPsize(*wp);
+ /* mark dirs */
+ glob_str(Xstring(xs, xp), wp, true);
+ newsize = XPsize(*wp);
+
+ /* Check that each match is executable... */
+ words = (char **)XPptrv(*wp);
+ for (i = j = oldsize; i < newsize; i++) {
+ if (ksh_access(words[i], X_OK) == 0) {
+ words[j] = words[i];
+ if (!(flags & XCF_FULLPATH))
+ memmove(words[j], words[j] + pathlen,
+ strlen(words[j] + pathlen) + 1);
+ j++;
+ } else
+ afree(words[i], ATEMP);
+ }
+ wp->len = j;
+
+ if (!*sp++)
+ break;
+ }
+ Xfree(xs, xp);
+}
+
+/*
+ * if argument string contains any special characters, they will
+ * be escaped and the result will be put into edit buffer by
+ * keybinding-specific function
+ */
+static int
+x_escape(const char *s, size_t len, int (*putbuf_func)(const char *, size_t))
+{
+ size_t add = 0, wlen = len;
+ const char *ifs = str_val(local("IFS", 0));
+ int rval = 0;
+
+ while (wlen - add > 0)
+ if (vstrchr("\"#$&'()*:;<=>?[\\`{|}", s[add]) ||
+ vstrchr(ifs, s[add])) {
+ if (putbuf_func(s, add) != 0) {
+ rval = -1;
+ break;
+ }
+ putbuf_func(s[add] == '\n' ? "'" : "\\", 1);
+ putbuf_func(&s[add], 1);
+ if (s[add] == '\n')
+ putbuf_func("'", 1);
+
+ add++;
+ wlen -= add;
+ s += add;
+ add = 0;
+ } else
+ ++add;
+ if (wlen > 0 && rval == 0)
+ rval = putbuf_func(s, wlen);
+
+ return (rval);
+}
+
+
+/* +++ emacs editing mode +++ */
+
+static Area aedit;
+#define AEDIT &aedit /* area for kill ring and macro defns */
+
+/* values returned by keyboard functions */
+#define KSTD 0
+#define KEOL 1 /* ^M, ^J */
+#define KINTR 2 /* ^G, ^C */
+
+struct x_ftab {
+ int (*xf_func)(int c);
+ const char *xf_name;
+ short xf_flags;
+};
+
+struct x_defbindings {
+ unsigned char xdb_func; /* XFUNC_* */
+ unsigned char xdb_tab;
+ unsigned char xdb_char;
+};
+
+#define XF_ARG 1 /* command takes number prefix */
+#define XF_NOBIND 2 /* not allowed to bind to function */
+#define XF_PREFIX 4 /* function sets prefix */
+
+/* Separator for completion */
+#define is_cfs(c) ((c) == ' ' || (c) == '\t' || (c) == '"' || (c) == '\'')
+/* Separator for motion */
+#define is_mfs(c) (!(ksh_isalnux(c) || (c) == '$' || ((c) & 0x80)))
+
+#define X_NTABS 3 /* normal, meta1, meta2 */
+#define X_TABSZ 256 /* size of keydef tables etc */
+
+/*-
+ * Arguments for do_complete()
+ * 0 = enumerate M-= complete as much as possible and then list
+ * 1 = complete M-Esc
+ * 2 = list M-?
+ */
+typedef enum {
+ CT_LIST, /* list the possible completions */
+ CT_COMPLETE, /* complete to longest prefix */
+ CT_COMPLIST /* complete and then list (if non-exact) */
+} Comp_type;
+
+/*
+ * The following are used for my horizontal scrolling stuff
+ */
+static char *xbuf; /* beg input buffer */
+static char *xend; /* end input buffer */
+static char *xcp; /* current position */
+static char *xep; /* current end */
+static char *xbp; /* start of visible portion of input buffer */
+static char *xlp; /* last char visible on screen */
+static bool x_adj_ok;
+/*
+ * we use x_adj_done so that functions can tell
+ * whether x_adjust() has been called while they are active.
+ */
+static int x_adj_done; /* is incremented by x_adjust() */
+
+static int x_displen;
+static int x_arg; /* general purpose arg */
+static bool x_arg_defaulted; /* x_arg not explicitly set; defaulted to 1 */
+
+static bool xlp_valid; /* lastvis pointer was recalculated */
+
+static char **x_histp; /* history position */
+static int x_nextcmd; /* for newline-and-next */
+static char **x_histncp; /* saved x_histp for " */
+static char *xmp; /* mark pointer */
+static unsigned char x_last_command;
+static unsigned char (*x_tab)[X_TABSZ]; /* key definition */
+#ifndef MKSH_SMALL
+static char *(*x_atab)[X_TABSZ]; /* macro definitions */
+#endif
+static unsigned char x_bound[(X_TABSZ * X_NTABS + 7) / 8];
+#define KILLSIZE 20
+static char *killstack[KILLSIZE];
+static int killsp, killtp;
+static int x_curprefix;
+#ifndef MKSH_SMALL
+static char *macroptr; /* bind key macro active? */
+#endif
+#if !MKSH_S_NOVI
+static int winwidth; /* width of window */
+static char *wbuf[2]; /* window buffers */
+static int wbuf_len; /* length of window buffers (x_cols - 3) */
+static int win; /* window buffer in use */
+static char morec; /* more character at right of window */
+static int lastref; /* argument to last refresh() */
+static int holdlen; /* length of holdbuf */
+#endif
+static int pwidth; /* width of prompt */
+static int prompt_trunc; /* how much of prompt to truncate or -1 */
+static int x_col; /* current column on line */
+
+static int x_ins(const char *);
+static void x_delete(size_t, bool);
+static size_t x_bword(void);
+static size_t x_fword(bool);
+static void x_goto(char *);
+static char *x_bs0(char *, char *) MKSH_A_PURE;
+static void x_bs3(char **);
+static int x_size_str(char *);
+static int x_size2(char *, char **);
+static void x_zots(char *);
+static void x_zotc3(char **);
+static void x_load_hist(char **);
+static int x_search(char *, int, int);
+#ifndef MKSH_SMALL
+static int x_search_dir(int);
+#endif
+static int x_match(char *, char *);
+static void x_redraw(int);
+static void x_push(int);
+static char *x_mapin(const char *, Area *);
+static char *x_mapout(int);
+static void x_mapout2(int, char **);
+static void x_print(int, int);
+static void x_adjust(void);
+static void x_e_ungetc(int);
+static int x_e_getc(void);
+static void x_e_putc2(int);
+static void x_e_putc3(const char **);
+static void x_e_puts(const char *);
+#ifndef MKSH_SMALL
+static int x_fold_case(int);
+#endif
+static char *x_lastcp(void);
+static void do_complete(int, Comp_type);
+static size_t x_nb2nc(size_t) MKSH_A_PURE;
+
+static int unget_char = -1;
+
+static int x_do_ins(const char *, size_t);
+static void bind_if_not_bound(int, int, int);
+
+enum emacs_funcs {
+#define EMACSFN_ENUMS
+#include "emacsfn.h"
+ XFUNC_MAX
+};
+
+#define EMACSFN_DEFNS
+#include "emacsfn.h"
+
+static const struct x_ftab x_ftab[] = {
+#define EMACSFN_ITEMS
+#include "emacsfn.h"
+ { 0, NULL, 0 }
+};
+
+static struct x_defbindings const x_defbindings[] = {
+ { XFUNC_del_back, 0, CTRL('?') },
+ { XFUNC_del_bword, 1, CTRL('?') },
+ { XFUNC_eot_del, 0, CTRL('D') },
+ { XFUNC_del_back, 0, CTRL('H') },
+ { XFUNC_del_bword, 1, CTRL('H') },
+ { XFUNC_del_bword, 1, 'h' },
+ { XFUNC_mv_bword, 1, 'b' },
+ { XFUNC_mv_fword, 1, 'f' },
+ { XFUNC_del_fword, 1, 'd' },
+ { XFUNC_mv_back, 0, CTRL('B') },
+ { XFUNC_mv_forw, 0, CTRL('F') },
+ { XFUNC_search_char_forw, 0, CTRL(']') },
+ { XFUNC_search_char_back, 1, CTRL(']') },
+ { XFUNC_newline, 0, CTRL('M') },
+ { XFUNC_newline, 0, CTRL('J') },
+ { XFUNC_end_of_text, 0, CTRL('_') },
+ { XFUNC_abort, 0, CTRL('G') },
+ { XFUNC_prev_com, 0, CTRL('P') },
+ { XFUNC_next_com, 0, CTRL('N') },
+ { XFUNC_nl_next_com, 0, CTRL('O') },
+ { XFUNC_search_hist, 0, CTRL('R') },
+ { XFUNC_beg_hist, 1, '<' },
+ { XFUNC_end_hist, 1, '>' },
+ { XFUNC_goto_hist, 1, 'g' },
+ { XFUNC_mv_end, 0, CTRL('E') },
+ { XFUNC_mv_begin, 0, CTRL('A') },
+ { XFUNC_draw_line, 0, CTRL('L') },
+ { XFUNC_cls, 1, CTRL('L') },
+ { XFUNC_meta1, 0, CTRL('[') },
+ { XFUNC_meta2, 0, CTRL('X') },
+ { XFUNC_kill, 0, CTRL('K') },
+ { XFUNC_yank, 0, CTRL('Y') },
+ { XFUNC_meta_yank, 1, 'y' },
+ { XFUNC_literal, 0, CTRL('^') },
+ { XFUNC_comment, 1, '#' },
+ { XFUNC_transpose, 0, CTRL('T') },
+ { XFUNC_complete, 1, CTRL('[') },
+ { XFUNC_comp_list, 0, CTRL('I') },
+ { XFUNC_comp_list, 1, '=' },
+ { XFUNC_enumerate, 1, '?' },
+ { XFUNC_expand, 1, '*' },
+ { XFUNC_comp_file, 1, CTRL('X') },
+ { XFUNC_comp_comm, 2, CTRL('[') },
+ { XFUNC_list_comm, 2, '?' },
+ { XFUNC_list_file, 2, CTRL('Y') },
+ { XFUNC_set_mark, 1, ' ' },
+ { XFUNC_kill_region, 0, CTRL('W') },
+ { XFUNC_xchg_point_mark, 2, CTRL('X') },
+ { XFUNC_literal, 0, CTRL('V') },
+ { XFUNC_version, 1, CTRL('V') },
+ { XFUNC_prev_histword, 1, '.' },
+ { XFUNC_prev_histword, 1, '_' },
+ { XFUNC_set_arg, 1, '0' },
+ { XFUNC_set_arg, 1, '1' },
+ { XFUNC_set_arg, 1, '2' },
+ { XFUNC_set_arg, 1, '3' },
+ { XFUNC_set_arg, 1, '4' },
+ { XFUNC_set_arg, 1, '5' },
+ { XFUNC_set_arg, 1, '6' },
+ { XFUNC_set_arg, 1, '7' },
+ { XFUNC_set_arg, 1, '8' },
+ { XFUNC_set_arg, 1, '9' },
+#ifndef MKSH_SMALL
+ { XFUNC_fold_upper, 1, 'U' },
+ { XFUNC_fold_upper, 1, 'u' },
+ { XFUNC_fold_lower, 1, 'L' },
+ { XFUNC_fold_lower, 1, 'l' },
+ { XFUNC_fold_capitalise, 1, 'C' },
+ { XFUNC_fold_capitalise, 1, 'c' },
+#endif
+ /*
+ * These for ANSI arrow keys: arguablely shouldn't be here by
+ * default, but its simpler/faster/smaller than using termcap
+ * entries.
+ */
+ { XFUNC_meta2, 1, '[' },
+ { XFUNC_meta2, 1, 'O' },
+ { XFUNC_prev_com, 2, 'A' },
+ { XFUNC_next_com, 2, 'B' },
+ { XFUNC_mv_forw, 2, 'C' },
+ { XFUNC_mv_back, 2, 'D' },
+#ifndef MKSH_SMALL
+ { XFUNC_vt_hack, 2, '1' },
+ { XFUNC_mv_begin | 0x80, 2, '7' },
+ { XFUNC_mv_begin, 2, 'H' },
+ { XFUNC_mv_end | 0x80, 2, '4' },
+ { XFUNC_mv_end | 0x80, 2, '8' },
+ { XFUNC_mv_end, 2, 'F' },
+ { XFUNC_del_char | 0x80, 2, '3' },
+ { XFUNC_search_hist_up | 0x80, 2, '5' },
+ { XFUNC_search_hist_dn | 0x80, 2, '6' },
+ /* more non-standard ones */
+ { XFUNC_edit_line, 2, 'e' }
+#endif
+};
+
+static size_t
+x_nb2nc(size_t nb)
+{
+ char *cp;
+ size_t nc = 0;
+
+ for (cp = xcp; cp < (xcp + nb); ++nc)
+ cp += utf_ptradj(cp);
+ return (nc);
+}
+
+static void
+x_modified(void)
+{
+ if (!modified) {
+ x_histp = histptr + 1;
+ modified = 1;
+ }
+}
+
+#ifdef MKSH_SMALL
+#define XFUNC_VALUE(f) (f)
+#else
+#define XFUNC_VALUE(f) (f & 0x7F)
+#endif
+
+static int
+x_e_getmbc(char *sbuf)
+{
+ int c, pos = 0;
+ unsigned char *buf = (unsigned char *)sbuf;
+
+ memset(buf, 0, 4);
+ buf[pos++] = c = x_e_getc();
+ if (c == -1)
+ return (-1);
+ if (UTFMODE) {
+ if ((buf[0] >= 0xC2) && (buf[0] < 0xF0)) {
+ c = x_e_getc();
+ if (c == -1)
+ return (-1);
+ if ((c & 0xC0) != 0x80) {
+ x_e_ungetc(c);
+ return (1);
+ }
+ buf[pos++] = c;
+ }
+ if ((buf[0] >= 0xE0) && (buf[0] < 0xF0)) {
+ /* XXX x_e_ungetc is one-octet only */
+ buf[pos++] = c = x_e_getc();
+ if (c == -1)
+ return (-1);
+ }
+ }
+ return (pos);
+}
+
+static void
+x_init_prompt(bool doprint)
+{
+ prompt_trunc = pprompt(prompt, doprint ? 0 : -1);
+ pwidth = prompt_trunc % x_cols;
+ prompt_trunc -= pwidth;
+ if ((mksh_uari_t)pwidth > ((mksh_uari_t)x_cols - 3 - MIN_EDIT_SPACE)) {
+ /* force newline after prompt */
+ prompt_trunc = -1;
+ pwidth = 0;
+ if (doprint)
+ x_e_putc2('\n');
+ }
+}
+
+static int
+x_emacs(char *buf)
+{
+ int c, i;
+ unsigned char f;
+
+ xbp = xbuf = buf;
+ xend = buf + LINE;
+ xlp = xcp = xep = buf;
+ *xcp = 0;
+ xlp_valid = true;
+ xmp = NULL;
+ x_curprefix = 0;
+ x_histp = histptr + 1;
+ x_last_command = XFUNC_error;
+
+ x_init_prompt(true);
+ x_displen = (xx_cols = x_cols) - 2 - (x_col = pwidth);
+ x_adj_done = 0;
+ x_adj_ok = true;
+
+ x_histncp = NULL;
+ if (x_nextcmd >= 0) {
+ int off = source->line - x_nextcmd;
+ if (histptr - history >= off) {
+ x_load_hist(histptr - off);
+ x_histncp = x_histp;
+ }
+ x_nextcmd = -1;
+ }
+ editmode = 1;
+ while (/* CONSTCOND */ 1) {
+ x_flush();
+ if ((c = x_e_getc()) < 0)
+ return (0);
+
+ f = x_curprefix == -1 ? XFUNC_insert :
+ x_tab[x_curprefix][c];
+#ifndef MKSH_SMALL
+ if (f & 0x80) {
+ f &= 0x7F;
+ if ((i = x_e_getc()) != '~')
+ x_e_ungetc(i);
+ }
+
+ /* avoid bind key macro recursion */
+ if (macroptr && f == XFUNC_ins_string)
+ f = XFUNC_insert;
+#endif
+
+ if (!(x_ftab[f].xf_flags & XF_PREFIX) &&
+ x_last_command != XFUNC_set_arg) {
+ x_arg = 1;
+ x_arg_defaulted = true;
+ }
+ i = c | (x_curprefix << 8);
+ x_curprefix = 0;
+ switch ((*x_ftab[f].xf_func)(i)) {
+ case KSTD:
+ if (!(x_ftab[f].xf_flags & XF_PREFIX))
+ x_last_command = f;
+ break;
+ case KEOL:
+ i = xep - xbuf;
+ return (i);
+ case KINTR:
+ /* special case for interrupt */
+ trapsig(SIGINT);
+ x_mode(false);
+ unwind(LSHELL);
+ }
+ /* ad-hoc hack for fixing the cursor position */
+ x_goto(xcp);
+ }
+}
+
+static int
+x_insert(int c)
+{
+ static int left, pos, save_arg;
+ static char str[4];
+
+ /*
+ * Should allow tab and control chars.
+ */
+ if (c == 0) {
+ invmbs:
+ left = 0;
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ if (UTFMODE) {
+ if (((c & 0xC0) == 0x80) && left) {
+ str[pos++] = c;
+ if (!--left) {
+ str[pos] = '\0';
+ x_arg = save_arg;
+ while (x_arg--)
+ x_ins(str);
+ }
+ return (KSTD);
+ }
+ if (left) {
+ if (x_curprefix == -1) {
+ /* flush invalid multibyte */
+ str[pos] = '\0';
+ while (save_arg--)
+ x_ins(str);
+ }
+ }
+ if ((c >= 0xC2) && (c < 0xE0))
+ left = 1;
+ else if ((c >= 0xE0) && (c < 0xF0))
+ left = 2;
+ else if (c > 0x7F)
+ goto invmbs;
+ else
+ left = 0;
+ if (left) {
+ save_arg = x_arg;
+ pos = 1;
+ str[0] = c;
+ return (KSTD);
+ }
+ }
+ left = 0;
+ str[0] = c;
+ str[1] = '\0';
+ while (x_arg--)
+ x_ins(str);
+ return (KSTD);
+}
+
+#ifndef MKSH_SMALL
+static int
+x_ins_string(int c)
+{
+ macroptr = x_atab[c >> 8][c & 255];
+ /*
+ * we no longer need to bother checking if macroptr is
+ * not NULL but first char is NUL; x_e_getc() does it
+ */
+ return (KSTD);
+}
+#endif
+
+static int
+x_do_ins(const char *cp, size_t len)
+{
+ if (xep + len >= xend) {
+ x_e_putc2(7);
+ return (-1);
+ }
+ memmove(xcp + len, xcp, xep - xcp + 1);
+ memmove(xcp, cp, len);
+ xcp += len;
+ xep += len;
+ x_modified();
+ return (0);
+}
+
+static int
+x_ins(const char *s)
+{
+ char *cp = xcp;
+ int adj = x_adj_done;
+
+ if (x_do_ins(s, strlen(s)) < 0)
+ return (-1);
+ /*
+ * x_zots() may result in a call to x_adjust()
+ * we want xcp to reflect the new position.
+ */
+ xlp_valid = false;
+ x_lastcp();
+ x_adj_ok = tobool(xcp >= xlp);
+ x_zots(cp);
+ /* has x_adjust() been called? */
+ if (adj == x_adj_done) {
+ /* no */
+ cp = xlp;
+ while (cp > xcp)
+ x_bs3(&cp);
+ }
+ if (xlp == xep - 1)
+ x_redraw(xx_cols);
+ x_adj_ok = true;
+ return (0);
+}
+
+static int
+x_del_back(int c MKSH_A_UNUSED)
+{
+ ssize_t i = 0;
+
+ if (xcp == xbuf) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ do {
+ x_goto(xcp - 1);
+ } while ((++i < x_arg) && (xcp != xbuf));
+ x_delete(i, false);
+ return (KSTD);
+}
+
+static int
+x_del_char(int c MKSH_A_UNUSED)
+{
+ char *cp, *cp2;
+ size_t i = 0;
+
+ cp = xcp;
+ while (i < (size_t)x_arg) {
+ utf_ptradjx(cp, cp2);
+ if (cp2 > xep)
+ break;
+ cp = cp2;
+ i++;
+ }
+
+ if (!i) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ x_delete(i, false);
+ return (KSTD);
+}
+
+/* Delete nc chars to the right of the cursor (including cursor position) */
+static void
+x_delete(size_t nc, bool push)
+{
+ size_t i, nb, nw;
+ char *cp;
+
+ if (nc == 0)
+ return;
+
+ nw = 0;
+ cp = xcp;
+ for (i = 0; i < nc; ++i) {
+ char *cp2;
+ int j;
+
+ j = x_size2(cp, &cp2);
+ if (cp2 > xep)
+ break;
+ cp = cp2;
+ nw += j;
+ }
+ nb = cp - xcp;
+ /* nc = i; */
+
+ if (xmp != NULL && xmp > xcp) {
+ if (xcp + nb > xmp)
+ xmp = xcp;
+ else
+ xmp -= nb;
+ }
+ /*
+ * This lets us yank a word we have deleted.
+ */
+ if (push)
+ x_push(nb);
+
+ xep -= nb;
+ /* Copies the NUL */
+ memmove(xcp, xcp + nb, xep - xcp + 1);
+ /* don't redraw */
+ x_adj_ok = false;
+ xlp_valid = false;
+ x_zots(xcp);
+ /*
+ * if we are already filling the line,
+ * there is no need to ' ', '\b'.
+ * But if we must, make sure we do the minimum.
+ */
+ if ((i = xx_cols - 2 - x_col) > 0 || xep - xlp == 0) {
+ nw = i = (nw < i) ? nw : i;
+ while (i--)
+ x_e_putc2(' ');
+ if (x_col == xx_cols - 2) {
+ x_e_putc2((xep > xlp) ? '>' : (xbp > xbuf) ? '<' : ' ');
+ ++nw;
+ }
+ while (nw--)
+ x_e_putc2('\b');
+ }
+ /*x_goto(xcp);*/
+ x_adj_ok = true;
+ xlp_valid = false;
+ cp = x_lastcp();
+ while (cp > xcp)
+ x_bs3(&cp);
+
+ x_modified();
+ return;
+}
+
+static int
+x_del_bword(int c MKSH_A_UNUSED)
+{
+ x_delete(x_bword(), true);
+ return (KSTD);
+}
+
+static int
+x_mv_bword(int c MKSH_A_UNUSED)
+{
+ x_bword();
+ return (KSTD);
+}
+
+static int
+x_mv_fword(int c MKSH_A_UNUSED)
+{
+ x_fword(true);
+ return (KSTD);
+}
+
+static int
+x_del_fword(int c MKSH_A_UNUSED)
+{
+ x_delete(x_fword(false), true);
+ return (KSTD);
+}
+
+static size_t
+x_bword(void)
+{
+ size_t nb = 0;
+ char *cp = xcp;
+
+ if (cp == xbuf) {
+ x_e_putc2(7);
+ return (0);
+ }
+ while (x_arg--) {
+ while (cp != xbuf && is_mfs(cp[-1])) {
+ cp--;
+ nb++;
+ }
+ while (cp != xbuf && !is_mfs(cp[-1])) {
+ cp--;
+ nb++;
+ }
+ }
+ x_goto(cp);
+ return (x_nb2nc(nb));
+}
+
+static size_t
+x_fword(bool move)
+{
+ size_t nc;
+ char *cp = xcp;
+
+ if (cp == xep) {
+ x_e_putc2(7);
+ return (0);
+ }
+ while (x_arg--) {
+ while (cp != xep && is_mfs(*cp))
+ cp++;
+ while (cp != xep && !is_mfs(*cp))
+ cp++;
+ }
+ nc = x_nb2nc(cp - xcp);
+ if (move)
+ x_goto(cp);
+ return (nc);
+}
+
+static void
+x_goto(char *cp)
+{
+ cp = cp >= xep ? xep : x_bs0(cp, xbuf);
+ if (cp < xbp || cp >= utf_skipcols(xbp, x_displen)) {
+ /* we are heading off screen */
+ xcp = cp;
+ x_adjust();
+ } else if (cp < xcp) {
+ /* move back */
+ while (cp < xcp)
+ x_bs3(&xcp);
+ } else if (cp > xcp) {
+ /* move forward */
+ while (cp > xcp)
+ x_zotc3(&xcp);
+ }
+}
+
+static char *
+x_bs0(char *cp, char *lower_bound)
+{
+ if (UTFMODE)
+ while ((!lower_bound || (cp > lower_bound)) &&
+ ((*(unsigned char *)cp & 0xC0) == 0x80))
+ --cp;
+ return (cp);
+}
+
+static void
+x_bs3(char **p)
+{
+ int i;
+
+ *p = x_bs0((*p) - 1, NULL);
+ i = x_size2(*p, NULL);
+ while (i--)
+ x_e_putc2('\b');
+}
+
+static int
+x_size_str(char *cp)
+{
+ int size = 0;
+ while (*cp)
+ size += x_size2(cp, &cp);
+ return (size);
+}
+
+static int
+x_size2(char *cp, char **dcp)
+{
+ uint8_t c = *(unsigned char *)cp;
+
+ if (UTFMODE && (c > 0x7F))
+ return (utf_widthadj(cp, (const char **)dcp));
+ if (dcp)
+ *dcp = cp + 1;
+ if (c == '\t')
+ /* Kludge, tabs are always four spaces. */
+ return (4);
+ if (ISCTRL(c) && /* but not C1 */ c < 0x80)
+ /* control unsigned char */
+ return (2);
+ return (1);
+}
+
+static void
+x_zots(char *str)
+{
+ int adj = x_adj_done;
+
+ x_lastcp();
+ while (*str && str < xlp && adj == x_adj_done)
+ x_zotc3(&str);
+}
+
+static void
+x_zotc3(char **cp)
+{
+ unsigned char c = **(unsigned char **)cp;
+
+ if (c == '\t') {
+ /* Kludge, tabs are always four spaces. */
+ x_e_puts(" ");
+ (*cp)++;
+ } else if (ISCTRL(c) && /* but not C1 */ c < 0x80) {
+ x_e_putc2('^');
+ x_e_putc2(UNCTRL(c));
+ (*cp)++;
+ } else
+ x_e_putc3((const char **)cp);
+}
+
+static int
+x_mv_back(int c MKSH_A_UNUSED)
+{
+ if (xcp == xbuf) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ while (x_arg--) {
+ x_goto(xcp - 1);
+ if (xcp == xbuf)
+ break;
+ }
+ return (KSTD);
+}
+
+static int
+x_mv_forw(int c MKSH_A_UNUSED)
+{
+ char *cp = xcp, *cp2;
+
+ if (xcp == xep) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ while (x_arg--) {
+ utf_ptradjx(cp, cp2);
+ if (cp2 > xep)
+ break;
+ cp = cp2;
+ }
+ x_goto(cp);
+ return (KSTD);
+}
+
+static int
+x_search_char_forw(int c MKSH_A_UNUSED)
+{
+ char *cp = xcp;
+ char tmp[4];
+
+ *xep = '\0';
+ if (x_e_getmbc(tmp) < 0) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ while (x_arg--) {
+ if ((cp = (cp == xep) ? NULL : strstr(cp + 1, tmp)) == NULL &&
+ (cp = strstr(xbuf, tmp)) == NULL) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ }
+ x_goto(cp);
+ return (KSTD);
+}
+
+static int
+x_search_char_back(int c MKSH_A_UNUSED)
+{
+ char *cp = xcp, *p, tmp[4];
+ bool b;
+
+ if (x_e_getmbc(tmp) < 0) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ for (; x_arg--; cp = p)
+ for (p = cp; ; ) {
+ if (p-- == xbuf)
+ p = xep;
+ if (p == cp) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ if ((tmp[1] && ((p+1) > xep)) ||
+ (tmp[2] && ((p+2) > xep)))
+ continue;
+ b = true;
+ if (*p != tmp[0])
+ b = false;
+ if (b && tmp[1] && p[1] != tmp[1])
+ b = false;
+ if (b && tmp[2] && p[2] != tmp[2])
+ b = false;
+ if (b)
+ break;
+ }
+ x_goto(cp);
+ return (KSTD);
+}
+
+static int
+x_newline(int c MKSH_A_UNUSED)
+{
+ x_e_putc2('\r');
+ x_e_putc2('\n');
+ x_flush();
+ *xep++ = '\n';
+ return (KEOL);
+}
+
+static int
+x_end_of_text(int c MKSH_A_UNUSED)
+{
+ char tmp = edchars.eof;
+ char *cp = &tmp;
+
+ x_zotc3(&cp);
+ x_putc('\r');
+ x_putc('\n');
+ x_flush();
+ return (KEOL);
+}
+
+static int
+x_beg_hist(int c MKSH_A_UNUSED)
+{
+ x_load_hist(history);
+ return (KSTD);
+}
+
+static int
+x_end_hist(int c MKSH_A_UNUSED)
+{
+ x_load_hist(histptr);
+ return (KSTD);
+}
+
+static int
+x_prev_com(int c MKSH_A_UNUSED)
+{
+ x_load_hist(x_histp - x_arg);
+ return (KSTD);
+}
+
+static int
+x_next_com(int c MKSH_A_UNUSED)
+{
+ x_load_hist(x_histp + x_arg);
+ return (KSTD);
+}
+
+/*
+ * Goto a particular history number obtained from argument.
+ * If no argument is given history 1 is probably not what you
+ * want so we'll simply go to the oldest one.
+ */
+static int
+x_goto_hist(int c MKSH_A_UNUSED)
+{
+ if (x_arg_defaulted)
+ x_load_hist(history);
+ else
+ x_load_hist(histptr + x_arg - source->line);
+ return (KSTD);
+}
+
+static void
+x_load_hist(char **hp)
+{
+ int oldsize;
+ char *sp = NULL;
+
+ if (hp == histptr + 1) {
+ sp = holdbufp;
+ modified = 0;
+ } else if (hp < history || hp > histptr) {
+ x_e_putc2(7);
+ return;
+ }
+ if (sp == NULL)
+ sp = *hp;
+ x_histp = hp;
+ oldsize = x_size_str(xbuf);
+ if (modified)
+ strlcpy(holdbufp, xbuf, LINE);
+ strlcpy(xbuf, sp, xend - xbuf);
+ xbp = xbuf;
+ xep = xcp = xbuf + strlen(xbuf);
+ xlp_valid = false;
+ if (xep <= x_lastcp()) {
+ x_redraw(oldsize);
+ }
+ x_goto(xep);
+ modified = 0;
+}
+
+static int
+x_nl_next_com(int c MKSH_A_UNUSED)
+{
+ if (!x_histncp || (x_histp != x_histncp && x_histp != histptr + 1))
+ /* fresh start of ^O */
+ x_histncp = x_histp;
+ x_nextcmd = source->line - (histptr - x_histncp) + 1;
+ return (x_newline('\n'));
+}
+
+static int
+x_eot_del(int c)
+{
+ if (xep == xbuf && x_arg_defaulted)
+ return (x_end_of_text(c));
+ else
+ return (x_del_char(c));
+}
+
+/* reverse incremental history search */
+static int
+x_search_hist(int c)
+{
+ int offset = -1; /* offset of match in xbuf, else -1 */
+ char pat[80 + 1]; /* pattern buffer */
+ char *p = pat;
+ unsigned char f;
+
+ *p = '\0';
+ while (/* CONSTCOND */ 1) {
+ if (offset < 0) {
+ x_e_puts("\nI-search: ");
+ x_e_puts(pat);
+ }
+ x_flush();
+ if ((c = x_e_getc()) < 0)
+ return (KSTD);
+ f = x_tab[0][c];
+ if (c == CTRL('[')) {
+ if ((f & 0x7F) == XFUNC_meta1) {
+ if ((c = x_e_getc()) < 0)
+ return (KSTD);
+ f = x_tab[1][c] & 0x7F;
+ if (f == XFUNC_meta1 || f == XFUNC_meta2)
+ x_meta1(CTRL('['));
+ x_e_ungetc(c);
+ }
+ break;
+ }
+#ifndef MKSH_SMALL
+ if (f & 0x80) {
+ f &= 0x7F;
+ if ((c = x_e_getc()) != '~')
+ x_e_ungetc(c);
+ }
+#endif
+ if (f == XFUNC_search_hist)
+ offset = x_search(pat, 0, offset);
+ else if (f == XFUNC_del_back) {
+ if (p == pat) {
+ offset = -1;
+ break;
+ }
+ if (p > pat)
+ *--p = '\0';
+ if (p == pat)
+ offset = -1;
+ else
+ offset = x_search(pat, 1, offset);
+ continue;
+ } else if (f == XFUNC_insert) {
+ /* add char to pattern */
+ /* overflow check... */
+ if ((size_t)(p - pat) >= sizeof(pat) - 1) {
+ x_e_putc2(7);
+ continue;
+ }
+ *p++ = c, *p = '\0';
+ if (offset >= 0) {
+ /* already have partial match */
+ offset = x_match(xbuf, pat);
+ if (offset >= 0) {
+ x_goto(xbuf + offset + (p - pat) -
+ (*pat == '^'));
+ continue;
+ }
+ }
+ offset = x_search(pat, 0, offset);
+ } else if (f == XFUNC_abort) {
+ if (offset >= 0)
+ x_load_hist(histptr + 1);
+ break;
+ } else {
+ /* other command */
+ x_e_ungetc(c);
+ break;
+ }
+ }
+ if (offset < 0)
+ x_redraw(-1);
+ return (KSTD);
+}
+
+/* search backward from current line */
+static int
+x_search(char *pat, int sameline, int offset)
+{
+ char **hp;
+ int i;
+
+ for (hp = x_histp - (sameline ? 0 : 1); hp >= history; --hp) {
+ i = x_match(*hp, pat);
+ if (i >= 0) {
+ if (offset < 0)
+ x_e_putc2('\n');
+ x_load_hist(hp);
+ x_goto(xbuf + i + strlen(pat) - (*pat == '^'));
+ return (i);
+ }
+ }
+ x_e_putc2(7);
+ x_histp = histptr;
+ return (-1);
+}
+
+#ifndef MKSH_SMALL
+/* anchored search up from current line */
+static int
+x_search_hist_up(int c MKSH_A_UNUSED)
+{
+ return (x_search_dir(-1));
+}
+
+/* anchored search down from current line */
+static int
+x_search_hist_dn(int c MKSH_A_UNUSED)
+{
+ return (x_search_dir(1));
+}
+
+/* anchored search in the indicated direction */
+static int
+x_search_dir(int search_dir /* should've been bool */)
+{
+ char **hp = x_histp + search_dir;
+ size_t curs = xcp - xbuf;
+
+ while (histptr >= hp && hp >= history) {
+ if (strncmp(xbuf, *hp, curs) == 0) {
+ x_load_hist(hp);
+ x_goto(xbuf + curs);
+ break;
+ }
+ hp += search_dir;
+ }
+ return (KSTD);
+}
+#endif
+
+/* return position of first match of pattern in string, else -1 */
+static int
+x_match(char *str, char *pat)
+{
+ if (*pat == '^') {
+ return ((strncmp(str, pat + 1, strlen(pat + 1)) == 0) ? 0 : -1);
+ } else {
+ char *q = strstr(str, pat);
+ return ((q == NULL) ? -1 : q - str);
+ }
+}
+
+static int
+x_del_line(int c MKSH_A_UNUSED)
+{
+ int i, j;
+
+ *xep = 0;
+ i = xep - xbuf;
+ j = x_size_str(xbuf);
+ xcp = xbuf;
+ x_push(i);
+ xlp = xbp = xep = xbuf;
+ xlp_valid = true;
+ *xcp = 0;
+ xmp = NULL;
+ x_redraw(j);
+ x_modified();
+ return (KSTD);
+}
+
+static int
+x_mv_end(int c MKSH_A_UNUSED)
+{
+ x_goto(xep);
+ return (KSTD);
+}
+
+static int
+x_mv_begin(int c MKSH_A_UNUSED)
+{
+ x_goto(xbuf);
+ return (KSTD);
+}
+
+static int
+x_draw_line(int c MKSH_A_UNUSED)
+{
+ x_redraw(-1);
+ return (KSTD);
+}
+
+static int
+x_e_rebuildline(const char *clrstr)
+{
+ shf_puts(clrstr, shl_out);
+ x_adjust();
+ return (KSTD);
+}
+
+static int
+x_cls(int c MKSH_A_UNUSED)
+{
+ return (x_e_rebuildline(MKSH_CLS_STRING));
+}
+
+/*
+ * Redraw (part of) the line. If limit is < 0, the everything is redrawn
+ * on a NEW line, otherwise limit is the screen column up to which needs
+ * redrawing.
+ */
+static void
+x_redraw(int limit)
+{
+ int i, j;
+ char *cp;
+
+ x_adj_ok = false;
+ if (limit == -1)
+ x_e_putc2('\n');
+ else
+ x_e_putc2('\r');
+ x_flush();
+ if (xbp == xbuf) {
+ if (prompt_trunc != -1)
+ pprompt(prompt, prompt_trunc);
+ x_col = pwidth;
+ }
+ x_displen = xx_cols - 2 - x_col;
+ xlp_valid = false;
+ x_zots(xbp);
+ if (xbp != xbuf || xep > xlp)
+ limit = xx_cols;
+ if (limit >= 0) {
+ if (xep > xlp)
+ /* we fill the line */
+ i = 0;
+ else {
+ char *cpl = xbp;
+
+ i = limit;
+ while (cpl < xlp)
+ i -= x_size2(cpl, &cpl);
+ }
+
+ j = 0;
+ while ((j < i) || (x_col < (xx_cols - 2))) {
+ if (!(x_col < (xx_cols - 2)))
+ break;
+ x_e_putc2(' ');
+ j++;
+ }
+ i = ' ';
+ if (xep > xlp) {
+ /* more off screen */
+ if (xbp > xbuf)
+ i = '*';
+ else
+ i = '>';
+ } else if (xbp > xbuf)
+ i = '<';
+ x_e_putc2(i);
+ j++;
+ while (j--)
+ x_e_putc2('\b');
+ }
+ cp = xlp;
+ while (cp > xcp)
+ x_bs3(&cp);
+ x_adj_ok = true;
+ return;
+}
+
+static int
+x_transpose(int c MKSH_A_UNUSED)
+{
+ unsigned int tmpa, tmpb;
+
+ /*-
+ * What transpose is meant to do seems to be up for debate. This
+ * is a general summary of the options; the text is abcd with the
+ * upper case character or underscore indicating the cursor position:
+ * Who Before After Before After
+ * AT&T ksh in emacs mode: abCd abdC abcd_ (bell)
+ * AT&T ksh in gmacs mode: abCd baCd abcd_ abdc_
+ * gnu emacs: abCd acbD abcd_ abdc_
+ * Pdksh currently goes with GNU behavior since I believe this is the
+ * most common version of emacs, unless in gmacs mode, in which case
+ * it does the AT&T ksh gmacs mode.
+ * This should really be broken up into 3 functions so users can bind
+ * to the one they want.
+ */
+ if (xcp == xbuf) {
+ x_e_putc2(7);
+ return (KSTD);
+ } else if (xcp == xep || Flag(FGMACS)) {
+ if (xcp - xbuf == 1) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ /*
+ * Gosling/Unipress emacs style: Swap two characters before
+ * the cursor, do not change cursor position
+ */
+ x_bs3(&xcp);
+ if (utf_mbtowc(&tmpa, xcp) == (size_t)-1) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ x_bs3(&xcp);
+ if (utf_mbtowc(&tmpb, xcp) == (size_t)-1) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ utf_wctomb(xcp, tmpa);
+ x_zotc3(&xcp);
+ utf_wctomb(xcp, tmpb);
+ x_zotc3(&xcp);
+ } else {
+ /*
+ * GNU emacs style: Swap the characters before and under the
+ * cursor, move cursor position along one.
+ */
+ if (utf_mbtowc(&tmpa, xcp) == (size_t)-1) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ x_bs3(&xcp);
+ if (utf_mbtowc(&tmpb, xcp) == (size_t)-1) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ utf_wctomb(xcp, tmpa);
+ x_zotc3(&xcp);
+ utf_wctomb(xcp, tmpb);
+ x_zotc3(&xcp);
+ }
+ x_modified();
+ return (KSTD);
+}
+
+static int
+x_literal(int c MKSH_A_UNUSED)
+{
+ x_curprefix = -1;
+ return (KSTD);
+}
+
+static int
+x_meta1(int c MKSH_A_UNUSED)
+{
+ x_curprefix = 1;
+ return (KSTD);
+}
+
+static int
+x_meta2(int c MKSH_A_UNUSED)
+{
+ x_curprefix = 2;
+ return (KSTD);
+}
+
+static int
+x_kill(int c MKSH_A_UNUSED)
+{
+ size_t col = xcp - xbuf;
+ size_t lastcol = xep - xbuf;
+ size_t ndel, narg;
+
+ if (x_arg_defaulted || (narg = x_arg) > lastcol)
+ narg = lastcol;
+ if (narg < col) {
+ x_goto(xbuf + narg);
+ ndel = col - narg;
+ } else
+ ndel = narg - col;
+ x_delete(x_nb2nc(ndel), true);
+ return (KSTD);
+}
+
+static void
+x_push(int nchars)
+{
+ char *cp;
+
+ mkssert(xcp != NULL);
+ strndupx(cp, xcp, nchars, AEDIT);
+ if (killstack[killsp])
+ afree(killstack[killsp], AEDIT);
+ killstack[killsp] = cp;
+ killsp = (killsp + 1) % KILLSIZE;
+}
+
+static int
+x_yank(int c MKSH_A_UNUSED)
+{
+ if (killsp == 0)
+ killtp = KILLSIZE;
+ else
+ killtp = killsp;
+ killtp--;
+ if (killstack[killtp] == 0) {
+ x_e_puts("\nnothing to yank");
+ x_redraw(-1);
+ return (KSTD);
+ }
+ xmp = xcp;
+ x_ins(killstack[killtp]);
+ return (KSTD);
+}
+
+static int
+x_meta_yank(int c MKSH_A_UNUSED)
+{
+ size_t len;
+
+ if ((x_last_command != XFUNC_yank && x_last_command != XFUNC_meta_yank) ||
+ killstack[killtp] == 0) {
+ killtp = killsp;
+ x_e_puts("\nyank something first");
+ x_redraw(-1);
+ return (KSTD);
+ }
+ len = strlen(killstack[killtp]);
+ x_goto(xcp - len);
+ x_delete(x_nb2nc(len), false);
+ do {
+ if (killtp == 0)
+ killtp = KILLSIZE - 1;
+ else
+ killtp--;
+ } while (killstack[killtp] == 0);
+ x_ins(killstack[killtp]);
+ return (KSTD);
+}
+
+static int
+x_abort(int c MKSH_A_UNUSED)
+{
+ /* x_zotc(c); */
+ xlp = xep = xcp = xbp = xbuf;
+ xlp_valid = true;
+ *xcp = 0;
+ x_modified();
+ return (KINTR);
+}
+
+static int
+x_error(int c MKSH_A_UNUSED)
+{
+ x_e_putc2(7);
+ return (KSTD);
+}
+
+#ifndef MKSH_SMALL
+/* special VT100 style key sequence hack */
+static int
+x_vt_hack(int c)
+{
+ /* we only support PF2-'1' for now */
+ if (c != (2 << 8 | '1'))
+ return (x_error(c));
+
+ /* what's the next character? */
+ switch ((c = x_e_getc())) {
+ case '~':
+ x_arg = 1;
+ x_arg_defaulted = true;
+ return (x_mv_begin(0));
+ case ';':
+ /* "interesting" sequence detected */
+ break;
+ default:
+ goto unwind_err;
+ }
+
+ /* XXX x_e_ungetc is one-octet only */
+ if ((c = x_e_getc()) != '5' && c != '3')
+ goto unwind_err;
+
+ /*-
+ * At this point, we have read the following octets so far:
+ * - ESC+[ or ESC+O or Ctrl-X (Prefix 2)
+ * - 1 (vt_hack)
+ * - ;
+ * - 5 (Ctrl key combiner) or 3 (Alt key combiner)
+ * We can now accept one more octet designating the key.
+ */
+
+ switch ((c = x_e_getc())) {
+ case 'C':
+ return (x_mv_fword(c));
+ case 'D':
+ return (x_mv_bword(c));
+ }
+
+ unwind_err:
+ x_e_ungetc(c);
+ return (x_error(c));
+}
+#endif
+
+static char *
+x_mapin(const char *cp, Area *ap)
+{
+ char *news, *op;
+
+ strdupx(news, cp, ap);
+ op = news;
+ while (*cp) {
+ /* XXX -- should handle \^ escape? */
+ if (*cp == '^') {
+ cp++;
+ /*XXX or ^^ escape? this is ugly. */
+ if (*cp >= '?')
+ /* includes '?'; ASCII */
+ *op++ = CTRL(*cp);
+ else {
+ *op++ = '^';
+ cp--;
+ }
+ } else
+ *op++ = *cp;
+ cp++;
+ }
+ *op = '\0';
+
+ return (news);
+}
+
+static void
+x_mapout2(int c, char **buf)
+{
+ char *p = *buf;
+
+ if (ISCTRL(c)) {
+ *p++ = '^';
+ *p++ = UNCTRL(c);
+ } else
+ *p++ = c;
+ *p = 0;
+ *buf = p;
+}
+
+static char *
+x_mapout(int c)
+{
+ static char buf[8];
+ char *bp = buf;
+
+ x_mapout2(c, &bp);
+ return (buf);
+}
+
+static void
+x_print(int prefix, int key)
+{
+ int f = x_tab[prefix][key];
+
+ if (prefix)
+ /* prefix == 1 || prefix == 2 */
+ shf_puts(x_mapout(prefix == 1 ?
+ CTRL('[') : CTRL('X')), shl_stdout);
+#ifdef MKSH_SMALL
+ shprintf("%s = ", x_mapout(key));
+#else
+ shprintf("%s%s = ", x_mapout(key), (f & 0x80) ? "~" : "");
+ if (XFUNC_VALUE(f) != XFUNC_ins_string)
+#endif
+ shprintf("%s\n", x_ftab[XFUNC_VALUE(f)].xf_name);
+#ifndef MKSH_SMALL
+ else
+ shprintf("'%s'\n", x_atab[prefix][key]);
+#endif
+}
+
+int
+x_bind(const char *a1, const char *a2,
+#ifndef MKSH_SMALL
+ /* bind -m */
+ bool macro,
+#endif
+ /* bind -l */
+ bool list)
+{
+ unsigned char f;
+ int prefix, key;
+ char *m1, *m2;
+#ifndef MKSH_SMALL
+ char *sp = NULL;
+ bool hastilde;
+#endif
+
+ if (x_tab == NULL) {
+ bi_errorf("can't bind, not a tty");
+ return (1);
+ }
+ /* List function names */
+ if (list) {
+ for (f = 0; f < NELEM(x_ftab); f++)
+ if (x_ftab[f].xf_name &&
+ !(x_ftab[f].xf_flags & XF_NOBIND))
+ shprintf("%s\n", x_ftab[f].xf_name);
+ return (0);
+ }
+ if (a1 == NULL) {
+ for (prefix = 0; prefix < X_NTABS; prefix++)
+ for (key = 0; key < X_TABSZ; key++) {
+ f = XFUNC_VALUE(x_tab[prefix][key]);
+ if (f == XFUNC_insert || f == XFUNC_error
+#ifndef MKSH_SMALL
+ || (macro && f != XFUNC_ins_string)
+#endif
+ )
+ continue;
+ x_print(prefix, key);
+ }
+ return (0);
+ }
+ m2 = m1 = x_mapin(a1, ATEMP);
+ prefix = 0;
+ for (;; m1++) {
+ key = (unsigned char)*m1;
+ f = XFUNC_VALUE(x_tab[prefix][key]);
+ if (f == XFUNC_meta1)
+ prefix = 1;
+ else if (f == XFUNC_meta2)
+ prefix = 2;
+ else
+ break;
+ }
+ if (*++m1
+#ifndef MKSH_SMALL
+ && ((*m1 != '~') || *(m1 + 1))
+#endif
+ ) {
+ char msg[256];
+ const char *c = a1;
+ m1 = msg;
+ while (*c && (size_t)(m1 - msg) < sizeof(msg) - 3)
+ x_mapout2(*c++, &m1);
+ bi_errorf("%s: %s", "too long key sequence", msg);
+ return (1);
+ }
+#ifndef MKSH_SMALL
+ hastilde = tobool(*m1);
+#endif
+ afree(m2, ATEMP);
+
+ if (a2 == NULL) {
+ x_print(prefix, key);
+ return (0);
+ }
+ if (*a2 == 0) {
+ f = XFUNC_insert;
+#ifndef MKSH_SMALL
+ } else if (macro) {
+ f = XFUNC_ins_string;
+ sp = x_mapin(a2, AEDIT);
+#endif
+ } else {
+ for (f = 0; f < NELEM(x_ftab); f++)
+ if (x_ftab[f].xf_name &&
+ strcmp(x_ftab[f].xf_name, a2) == 0)
+ break;
+ if (f == NELEM(x_ftab) || x_ftab[f].xf_flags & XF_NOBIND) {
+ bi_errorf("%s: %s %s", a2, "no such", Tfunction);
+ return (1);
+ }
+ }
+
+#ifndef MKSH_SMALL
+ if (XFUNC_VALUE(x_tab[prefix][key]) == XFUNC_ins_string &&
+ x_atab[prefix][key])
+ afree(x_atab[prefix][key], AEDIT);
+#endif
+ x_tab[prefix][key] = f
+#ifndef MKSH_SMALL
+ | (hastilde ? 0x80 : 0)
+#endif
+ ;
+#ifndef MKSH_SMALL
+ x_atab[prefix][key] = sp;
+#endif
+
+ /* Track what the user has bound so x_mode(true) won't toast things */
+ if (f == XFUNC_insert)
+ x_bound[(prefix * X_TABSZ + key) / 8] &=
+ ~(1 << ((prefix * X_TABSZ + key) % 8));
+ else
+ x_bound[(prefix * X_TABSZ + key) / 8] |=
+ (1 << ((prefix * X_TABSZ + key) % 8));
+
+ return (0);
+}
+
+static void
+bind_if_not_bound(int p, int k, int func)
+{
+ int t;
+
+ /*
+ * Has user already bound this key?
+ * If so, do not override it.
+ */
+ t = p * X_TABSZ + k;
+ if (x_bound[t >> 3] & (1 << (t & 7)))
+ return;
+
+ x_tab[p][k] = func;
+}
+
+static int
+x_set_mark(int c MKSH_A_UNUSED)
+{
+ xmp = xcp;
+ return (KSTD);
+}
+
+static int
+x_kill_region(int c MKSH_A_UNUSED)
+{
+ size_t rsize;
+ char *xr;
+
+ if (xmp == NULL) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ if (xmp > xcp) {
+ rsize = xmp - xcp;
+ xr = xcp;
+ } else {
+ rsize = xcp - xmp;
+ xr = xmp;
+ }
+ x_goto(xr);
+ x_delete(x_nb2nc(rsize), true);
+ xmp = xr;
+ return (KSTD);
+}
+
+static int
+x_xchg_point_mark(int c MKSH_A_UNUSED)
+{
+ char *tmp;
+
+ if (xmp == NULL) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ tmp = xmp;
+ xmp = xcp;
+ x_goto(tmp);
+ return (KSTD);
+}
+
+static int
+x_noop(int c MKSH_A_UNUSED)
+{
+ return (KSTD);
+}
+
+/*
+ * File/command name completion routines
+ */
+static int
+x_comp_comm(int c MKSH_A_UNUSED)
+{
+ do_complete(XCF_COMMAND, CT_COMPLETE);
+ return (KSTD);
+}
+
+static int
+x_list_comm(int c MKSH_A_UNUSED)
+{
+ do_complete(XCF_COMMAND, CT_LIST);
+ return (KSTD);
+}
+
+static int
+x_complete(int c MKSH_A_UNUSED)
+{
+ do_complete(XCF_COMMAND_FILE, CT_COMPLETE);
+ return (KSTD);
+}
+
+static int
+x_enumerate(int c MKSH_A_UNUSED)
+{
+ do_complete(XCF_COMMAND_FILE, CT_LIST);
+ return (KSTD);
+}
+
+static int
+x_comp_file(int c MKSH_A_UNUSED)
+{
+ do_complete(XCF_FILE, CT_COMPLETE);
+ return (KSTD);
+}
+
+static int
+x_list_file(int c MKSH_A_UNUSED)
+{
+ do_complete(XCF_FILE, CT_LIST);
+ return (KSTD);
+}
+
+static int
+x_comp_list(int c MKSH_A_UNUSED)
+{
+ do_complete(XCF_COMMAND_FILE, CT_COMPLIST);
+ return (KSTD);
+}
+
+static int
+x_expand(int c MKSH_A_UNUSED)
+{
+ char **words;
+ int start, end, nwords, i;
+
+ i = XCF_FILE;
+ nwords = x_cf_glob(&i, xbuf, xep - xbuf, xcp - xbuf,
+ &start, &end, &words);
+
+ if (nwords == 0) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ x_goto(xbuf + start);
+ x_delete(x_nb2nc(end - start), false);
+
+ i = 0;
+ while (i < nwords) {
+ if (x_escape(words[i], strlen(words[i]), x_do_ins) < 0 ||
+ (++i < nwords && x_ins(" ") < 0)) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ }
+ x_adjust();
+
+ return (KSTD);
+}
+
+static void
+do_complete(
+ /* XCF_{COMMAND,FILE,COMMAND_FILE} */
+ int flags,
+ /* 0 for list, 1 for complete and 2 for complete-list */
+ Comp_type type)
+{
+ char **words;
+ int start, end, nlen, olen, nwords;
+ bool completed;
+
+ nwords = x_cf_glob(&flags, xbuf, xep - xbuf, xcp - xbuf,
+ &start, &end, &words);
+ /* no match */
+ if (nwords == 0) {
+ x_e_putc2(7);
+ return;
+ }
+ if (type == CT_LIST) {
+ x_print_expansions(nwords, words,
+ tobool(flags & XCF_IS_COMMAND));
+ x_redraw(0);
+ x_free_words(nwords, words);
+ return;
+ }
+ olen = end - start;
+ nlen = x_longest_prefix(nwords, words);
+ if (nwords == 1) {
+ /*
+ * always complete single matches;
+ * any expansion of parameter substitution
+ * is always at most one result, too
+ */
+ completed = true;
+ } else {
+ char *unescaped;
+
+ /* make a copy of the original string part */
+ strndupx(unescaped, xbuf + start, olen, ATEMP);
+
+ /* expand any tilde and unescape the string for comparison */
+ unescaped = x_glob_hlp_tilde_and_rem_qchar(unescaped, true);
+
+ /*
+ * match iff entire original string is part of the
+ * longest prefix, implying the latter is at least
+ * the same size (after unescaping)
+ */
+ completed = !strncmp(words[0], unescaped, strlen(unescaped));
+
+ afree(unescaped, ATEMP);
+ }
+ if (type == CT_COMPLIST && nwords > 1) {
+ /*
+ * print expansions, since we didn't get back
+ * just a single match
+ */
+ x_print_expansions(nwords, words,
+ tobool(flags & XCF_IS_COMMAND));
+ }
+ if (completed) {
+ /* expand on the command line */
+ xmp = NULL;
+ xcp = xbuf + start;
+ xep -= olen;
+ memmove(xcp, xcp + olen, xep - xcp + 1);
+ x_escape(words[0], nlen, x_do_ins);
+ }
+ x_adjust();
+ /*
+ * append a space if this is a single non-directory match
+ * and not a parameter or homedir substitution
+ */
+ if (nwords == 1 && words[0][nlen - 1] != '/' &&
+ !(flags & XCF_IS_NOSPACE)) {
+ x_ins(" ");
+ }
+
+ x_free_words(nwords, words);
+}
+
+/*-
+ * NAME:
+ * x_adjust - redraw the line adjusting starting point etc.
+ *
+ * DESCRIPTION:
+ * This function is called when we have exceeded the bounds
+ * of the edit window. It increments x_adj_done so that
+ * functions like x_ins and x_delete know that we have been
+ * called and can skip the x_bs() stuff which has already
+ * been done by x_redraw.
+ *
+ * RETURN VALUE:
+ * None
+ */
+static void
+x_adjust(void)
+{
+ int col_left, n;
+
+ /* flag the fact that we were called */
+ x_adj_done++;
+
+ /*
+ * calculate the amount of columns we need to "go back"
+ * from xcp to set xbp to (but never < xbuf) to 2/3 of
+ * the display width; take care of pwidth though
+ */
+ if ((col_left = xx_cols * 2 / 3) < MIN_EDIT_SPACE) {
+ /*
+ * cowardly refuse to do anything
+ * if the available space is too small;
+ * fall back to dumb pdksh code
+ */
+ if ((xbp = xcp - (x_displen / 2)) < xbuf)
+ xbp = xbuf;
+ /* elide UTF-8 fixup as penalty */
+ goto x_adjust_out;
+ }
+
+ /* fix up xbp to just past a character end first */
+ xbp = xcp >= xep ? xep : x_bs0(xcp, xbuf);
+ /* walk backwards */
+ while (xbp > xbuf && col_left > 0) {
+ xbp = x_bs0(xbp - 1, xbuf);
+ col_left -= (n = x_size2(xbp, NULL));
+ }
+ /* check if we hit the prompt */
+ if (xbp == xbuf && xcp != xbuf && col_left >= 0 && col_left < pwidth) {
+ /* so we did; force scrolling occurs */
+ xbp += utf_ptradj(xbp);
+ }
+
+ x_adjust_out:
+ xlp_valid = false;
+ x_redraw(xx_cols);
+ x_flush();
+}
+
+static void
+x_e_ungetc(int c)
+{
+ unget_char = c < 0 ? -1 : (c & 255);
+}
+
+static int
+x_e_getc(void)
+{
+ int c;
+
+ if (unget_char >= 0) {
+ c = unget_char;
+ unget_char = -1;
+ return (c);
+ }
+
+#ifndef MKSH_SMALL
+ if (macroptr) {
+ if ((c = (unsigned char)*macroptr++))
+ return (c);
+ macroptr = NULL;
+ }
+#endif
+
+ return (x_getc());
+}
+
+static void
+x_e_putc2(int c)
+{
+ int width = 1;
+
+ if (c == '\r' || c == '\n')
+ x_col = 0;
+ if (x_col < xx_cols) {
+ if (UTFMODE && (c > 0x7F)) {
+ char utf_tmp[3];
+ size_t x;
+
+ if (c < 0xA0)
+ c = 0xFFFD;
+ x = utf_wctomb(utf_tmp, c);
+ x_putc(utf_tmp[0]);
+ if (x > 1)
+ x_putc(utf_tmp[1]);
+ if (x > 2)
+ x_putc(utf_tmp[2]);
+ width = utf_wcwidth(c);
+ } else
+ x_putc(c);
+ switch (c) {
+ case 7:
+ break;
+ case '\r':
+ case '\n':
+ break;
+ case '\b':
+ x_col--;
+ break;
+ default:
+ x_col += width;
+ break;
+ }
+ }
+ if (x_adj_ok && (x_col < 0 || x_col >= (xx_cols - 2)))
+ x_adjust();
+}
+
+static void
+x_e_putc3(const char **cp)
+{
+ int width = 1, c = **(const unsigned char **)cp;
+
+ if (c == '\r' || c == '\n')
+ x_col = 0;
+ if (x_col < xx_cols) {
+ if (UTFMODE && (c > 0x7F)) {
+ char *cp2;
+
+ width = utf_widthadj(*cp, (const char **)&cp2);
+ while (*cp < cp2)
+ x_putcf(*(*cp)++);
+ } else {
+ (*cp)++;
+ x_putc(c);
+ }
+ switch (c) {
+ case 7:
+ break;
+ case '\r':
+ case '\n':
+ break;
+ case '\b':
+ x_col--;
+ break;
+ default:
+ x_col += width;
+ break;
+ }
+ }
+ if (x_adj_ok && (x_col < 0 || x_col >= (xx_cols - 2)))
+ x_adjust();
+}
+
+static void
+x_e_puts(const char *s)
+{
+ int adj = x_adj_done;
+
+ while (*s && adj == x_adj_done)
+ x_e_putc3(&s);
+}
+
+/*-
+ * NAME:
+ * x_set_arg - set an arg value for next function
+ *
+ * DESCRIPTION:
+ * This is a simple implementation of M-[0-9].
+ *
+ * RETURN VALUE:
+ * KSTD
+ */
+static int
+x_set_arg(int c)
+{
+ unsigned int n = 0;
+ bool first = true;
+
+ /* strip command prefix */
+ c &= 255;
+ while (c >= 0 && ksh_isdigit(c)) {
+ n = n * 10 + (c - '0');
+ if (n > LINE)
+ /* upper bound for repeat */
+ goto x_set_arg_too_big;
+ c = x_e_getc();
+ first = false;
+ }
+ if (c < 0 || first) {
+ x_set_arg_too_big:
+ x_e_putc2(7);
+ x_arg = 1;
+ x_arg_defaulted = true;
+ } else {
+ x_e_ungetc(c);
+ x_arg = n;
+ x_arg_defaulted = false;
+ }
+ return (KSTD);
+}
+
+/* Comment or uncomment the current line. */
+static int
+x_comment(int c MKSH_A_UNUSED)
+{
+ int oldsize = x_size_str(xbuf);
+ ssize_t len = xep - xbuf;
+ int ret = x_do_comment(xbuf, xend - xbuf, &len);
+
+ if (ret < 0)
+ x_e_putc2(7);
+ else {
+ x_modified();
+ xep = xbuf + len;
+ *xep = '\0';
+ xcp = xbp = xbuf;
+ x_redraw(oldsize);
+ if (ret > 0)
+ return (x_newline('\n'));
+ }
+ return (KSTD);
+}
+
+static int
+x_version(int c MKSH_A_UNUSED)
+{
+ char *o_xbuf = xbuf, *o_xend = xend;
+ char *o_xbp = xbp, *o_xep = xep, *o_xcp = xcp;
+ int lim = x_lastcp() - xbp;
+ size_t vlen;
+ char *v;
+
+ strdupx(v, KSH_VERSION, ATEMP);
+
+ xbuf = xbp = xcp = v;
+ xend = xep = v + (vlen = strlen(v));
+ x_redraw(lim);
+ x_flush();
+
+ c = x_e_getc();
+ xbuf = o_xbuf;
+ xend = o_xend;
+ xbp = o_xbp;
+ xep = o_xep;
+ xcp = o_xcp;
+ x_redraw((int)vlen);
+
+ if (c < 0)
+ return (KSTD);
+ /* This is what AT&T ksh seems to do... Very bizarre */
+ if (c != ' ')
+ x_e_ungetc(c);
+
+ afree(v, ATEMP);
+ return (KSTD);
+}
+
+#ifndef MKSH_SMALL
+static int
+x_edit_line(int c MKSH_A_UNUSED)
+{
+ if (x_arg_defaulted) {
+ if (xep == xbuf) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ if (modified) {
+ *xep = '\0';
+ histsave(&source->line, xbuf, true, true);
+ x_arg = 0;
+ } else
+ x_arg = source->line - (histptr - x_histp);
+ }
+ if (x_arg)
+ shf_snprintf(xbuf, xend - xbuf, "%s %d",
+ "fc -e ${VISUAL:-${EDITOR:-vi}} --", x_arg);
+ else
+ strlcpy(xbuf, "fc -e ${VISUAL:-${EDITOR:-vi}} --", xend - xbuf);
+ xep = xbuf + strlen(xbuf);
+ return (x_newline('\n'));
+}
+#endif
+
+/*-
+ * NAME:
+ * x_prev_histword - recover word from prev command
+ *
+ * DESCRIPTION:
+ * This function recovers the last word from the previous
+ * command and inserts it into the current edit line. If a
+ * numeric arg is supplied then the n'th word from the
+ * start of the previous command is used.
+ * As a side effect, trashes the mark in order to achieve
+ * being called in a repeatable fashion.
+ *
+ * Bound to M-.
+ *
+ * RETURN VALUE:
+ * KSTD
+ */
+static int
+x_prev_histword(int c MKSH_A_UNUSED)
+{
+ char *rcp, *cp;
+ char **xhp;
+ int m = 1;
+ /* -1 = defaulted; 0+ = argument */
+ static int last_arg = -1;
+
+ if (x_last_command == XFUNC_prev_histword) {
+ if (xmp && modified > 1)
+ x_kill_region(0);
+ if (modified)
+ m = modified;
+ } else
+ last_arg = x_arg_defaulted ? -1 : x_arg;
+ xhp = histptr - (m - 1);
+ if ((xhp < history) || !(cp = *xhp)) {
+ x_e_putc2(7);
+ x_modified();
+ return (KSTD);
+ }
+ x_set_mark(0);
+ if ((x_arg = last_arg) == -1) {
+ /* x_arg_defaulted */
+
+ rcp = &cp[strlen(cp) - 1];
+ /*
+ * ignore white-space after the last word
+ */
+ while (rcp > cp && is_cfs(*rcp))
+ rcp--;
+ while (rcp > cp && !is_cfs(*rcp))
+ rcp--;
+ if (is_cfs(*rcp))
+ rcp++;
+ x_ins(rcp);
+ } else {
+ /* not x_arg_defaulted */
+ char ch;
+
+ rcp = cp;
+ /*
+ * ignore white-space at start of line
+ */
+ while (*rcp && is_cfs(*rcp))
+ rcp++;
+ while (x_arg-- > 0) {
+ while (*rcp && !is_cfs(*rcp))
+ rcp++;
+ while (*rcp && is_cfs(*rcp))
+ rcp++;
+ }
+ cp = rcp;
+ while (*rcp && !is_cfs(*rcp))
+ rcp++;
+ ch = *rcp;
+ *rcp = '\0';
+ x_ins(cp);
+ *rcp = ch;
+ }
+ modified = m + 1;
+ return (KSTD);
+}
+
+#ifndef MKSH_SMALL
+/* Uppercase N(1) words */
+static int
+x_fold_upper(int c MKSH_A_UNUSED)
+{
+ return (x_fold_case('U'));
+}
+
+/* Lowercase N(1) words */
+static int
+x_fold_lower(int c MKSH_A_UNUSED)
+{
+ return (x_fold_case('L'));
+}
+
+/* Titlecase N(1) words */
+static int
+x_fold_capitalise(int c MKSH_A_UNUSED)
+{
+ return (x_fold_case('C'));
+}
+
+/*-
+ * NAME:
+ * x_fold_case - convert word to UPPER/lower/Capital case
+ *
+ * DESCRIPTION:
+ * This function is used to implement M-U/M-u, M-L/M-l, M-C/M-c
+ * to UPPER CASE, lower case or Capitalise Words.
+ *
+ * RETURN VALUE:
+ * None
+ */
+static int
+x_fold_case(int c)
+{
+ char *cp = xcp;
+
+ if (cp == xep) {
+ x_e_putc2(7);
+ return (KSTD);
+ }
+ while (x_arg--) {
+ /*
+ * first skip over any white-space
+ */
+ while (cp != xep && is_mfs(*cp))
+ cp++;
+ /*
+ * do the first char on its own since it may be
+ * a different action than for the rest.
+ */
+ if (cp != xep) {
+ if (c == 'L')
+ /* lowercase */
+ *cp = ksh_tolower(*cp);
+ else
+ /* uppercase, capitalise */
+ *cp = ksh_toupper(*cp);
+ cp++;
+ }
+ /*
+ * now for the rest of the word
+ */
+ while (cp != xep && !is_mfs(*cp)) {
+ if (c == 'U')
+ /* uppercase */
+ *cp = ksh_toupper(*cp);
+ else
+ /* lowercase, capitalise */
+ *cp = ksh_tolower(*cp);
+ cp++;
+ }
+ }
+ x_goto(cp);
+ x_modified();
+ return (KSTD);
+}
+#endif
+
+/*-
+ * NAME:
+ * x_lastcp - last visible char
+ *
+ * SYNOPSIS:
+ * x_lastcp()
+ *
+ * DESCRIPTION:
+ * This function returns a pointer to that char in the
+ * edit buffer that will be the last displayed on the
+ * screen. The sequence:
+ *
+ * cp = x_lastcp();
+ * while (cp > xcp)
+ * x_bs3(&cp);
+ *
+ * Will position the cursor correctly on the screen.
+ *
+ * RETURN VALUE:
+ * cp or NULL
+ */
+static char *
+x_lastcp(void)
+{
+ if (!xlp_valid) {
+ int i = 0, j;
+ char *xlp2;
+
+ xlp = xbp;
+ while (xlp < xep) {
+ j = x_size2(xlp, &xlp2);
+ if ((i + j) > x_displen)
+ break;
+ i += j;
+ xlp = xlp2;
+ }
+ }
+ xlp_valid = true;
+ return (xlp);
+}
+
+static void
+x_mode(bool onoff)
+{
+ static bool x_cur_mode;
+
+ if (x_cur_mode == onoff)
+ return;
+ x_cur_mode = onoff;
+
+ if (onoff) {
+ x_mkraw(tty_fd, NULL, false);
+
+ edchars.erase = tty_state.c_cc[VERASE];
+ edchars.kill = tty_state.c_cc[VKILL];
+ edchars.intr = tty_state.c_cc[VINTR];
+ edchars.quit = tty_state.c_cc[VQUIT];
+ edchars.eof = tty_state.c_cc[VEOF];
+#ifdef VWERASE
+ edchars.werase = tty_state.c_cc[VWERASE];
+#endif
+
+#ifdef _POSIX_VDISABLE
+ /* Convert unset values to internal 'unset' value */
+ if (edchars.erase == _POSIX_VDISABLE)
+ edchars.erase = -1;
+ if (edchars.kill == _POSIX_VDISABLE)
+ edchars.kill = -1;
+ if (edchars.intr == _POSIX_VDISABLE)
+ edchars.intr = -1;
+ if (edchars.quit == _POSIX_VDISABLE)
+ edchars.quit = -1;
+ if (edchars.eof == _POSIX_VDISABLE)
+ edchars.eof = -1;
+ if (edchars.werase == _POSIX_VDISABLE)
+ edchars.werase = -1;
+#endif
+
+ if (edchars.erase >= 0) {
+ bind_if_not_bound(0, edchars.erase, XFUNC_del_back);
+ bind_if_not_bound(1, edchars.erase, XFUNC_del_bword);
+ }
+ if (edchars.kill >= 0)
+ bind_if_not_bound(0, edchars.kill, XFUNC_del_line);
+ if (edchars.werase >= 0)
+ bind_if_not_bound(0, edchars.werase, XFUNC_del_bword);
+ if (edchars.intr >= 0)
+ bind_if_not_bound(0, edchars.intr, XFUNC_abort);
+ if (edchars.quit >= 0)
+ bind_if_not_bound(0, edchars.quit, XFUNC_noop);
+ } else
+ mksh_tcset(tty_fd, &tty_state);
+}
+
+#if !MKSH_S_NOVI
+/* +++ vi editing mode +++ */
+
+struct edstate {
+ char *cbuf;
+ ssize_t winleft;
+ ssize_t cbufsize;
+ ssize_t linelen;
+ ssize_t cursor;
+};
+
+static int vi_hook(int);
+static int nextstate(int);
+static int vi_insert(int);
+static int vi_cmd(int, const char *);
+static int domove(int, const char *, int);
+static int redo_insert(int);
+static void yank_range(int, int);
+static int bracktype(int);
+static void save_cbuf(void);
+static void restore_cbuf(void);
+static int putbuf(const char *, ssize_t, bool);
+static void del_range(int, int);
+static int findch(int, int, bool, bool) MKSH_A_PURE;
+static int forwword(int);
+static int backword(int);
+static int endword(int);
+static int Forwword(int);
+static int Backword(int);
+static int Endword(int);
+static int grabhist(int, int);
+static int grabsearch(int, int, int, const char *);
+static void redraw_line(bool);
+static void refresh(int);
+static int outofwin(void);
+static void rewindow(void);
+static int newcol(unsigned char, int);
+static void display(char *, char *, int);
+static void ed_mov_opt(int, char *);
+static int expand_word(int);
+static int complete_word(int, int);
+static int print_expansions(struct edstate *, int);
+#define char_len(c) ((ISCTRL((unsigned char)c) && \
+ /* but not C1 */ (unsigned char)c < 0x80) ? 2 : 1)
+static void x_vi_zotc(int);
+static void vi_error(void);
+static void vi_macro_reset(void);
+static int x_vi_putbuf(const char *, size_t);
+
+#define vC 0x01 /* a valid command that isn't a vM, vE, vU */
+#define vM 0x02 /* movement command (h, l, etc.) */
+#define vE 0x04 /* extended command (c, d, y) */
+#define vX 0x08 /* long command (@, f, F, t, T, etc.) */
+#define vU 0x10 /* an UN-undoable command (that isn't a vM) */
+#define vB 0x20 /* bad command (^@) */
+#define vZ 0x40 /* repeat count defaults to 0 (not 1) */
+#define vS 0x80 /* search (/, ?) */
+
+#define is_bad(c) (classify[(c)&0x7f]&vB)
+#define is_cmd(c) (classify[(c)&0x7f]&(vM|vE|vC|vU))
+#define is_move(c) (classify[(c)&0x7f]&vM)
+#define is_extend(c) (classify[(c)&0x7f]&vE)
+#define is_long(c) (classify[(c)&0x7f]&vX)
+#define is_undoable(c) (!(classify[(c)&0x7f]&vU))
+#define is_srch(c) (classify[(c)&0x7f]&vS)
+#define is_zerocount(c) (classify[(c)&0x7f]&vZ)
+
+static const unsigned char classify[128] = {
+/* 0 1 2 3 4 5 6 7 */
+/* 0 ^@ ^A ^B ^C ^D ^E ^F ^G */
+ vB, 0, 0, 0, 0, vC|vU, vC|vZ, 0,
+/* 1 ^H ^I ^J ^K ^L ^M ^N ^O */
+ vM, vC|vZ, 0, 0, vC|vU, 0, vC, 0,
+/* 2 ^P ^Q ^R ^S ^T ^U ^V ^W */
+ vC, 0, vC|vU, 0, 0, 0, vC, 0,
+/* 3 ^X ^Y ^Z ^[ ^\ ^] ^^ ^_ */
+ vC, 0, 0, vC|vZ, 0, 0, 0, 0,
+/* 4 <space> ! " # $ % & ' */
+ vM, 0, 0, vC, vM, vM, 0, 0,
+/* 5 ( ) * + , - . / */
+ 0, 0, vC, vC, vM, vC, 0, vC|vS,
+/* 6 0 1 2 3 4 5 6 7 */
+ vM, 0, 0, 0, 0, 0, 0, 0,
+/* 7 8 9 : ; < = > ? */
+ 0, 0, 0, vM, 0, vC, 0, vC|vS,
+/* 8 @ A B C D E F G */
+ vC|vX, vC, vM, vC, vC, vM, vM|vX, vC|vU|vZ,
+/* 9 H I J K L M N O */
+ 0, vC, 0, 0, 0, 0, vC|vU, vU,
+/* A P Q R S T U V W */
+ vC, 0, vC, vC, vM|vX, vC, 0, vM,
+/* B X Y Z [ \ ] ^ _ */
+ vC, vC|vU, 0, vU, vC|vZ, 0, vM, vC|vZ,
+/* C ` a b c d e f g */
+ 0, vC, vM, vE, vE, vM, vM|vX, vC|vZ,
+/* D h i j k l m n o */
+ vM, vC, vC|vU, vC|vU, vM, 0, vC|vU, 0,
+/* E p q r s t u v w */
+ vC, 0, vX, vC, vM|vX, vC|vU, vC|vU|vZ, vM,
+/* F x y z { | } ~ ^? */
+ vC, vE|vU, 0, 0, vM|vZ, 0, vC, 0
+};
+
+#define MAXVICMD 3
+#define SRCHLEN 40
+
+#define INSERT 1
+#define REPLACE 2
+
+#define VNORMAL 0 /* command, insert or replace mode */
+#define VARG1 1 /* digit prefix (first, eg, 5l) */
+#define VEXTCMD 2 /* cmd + movement (eg, cl) */
+#define VARG2 3 /* digit prefix (second, eg, 2c3l) */
+#define VXCH 4 /* f, F, t, T, @ */
+#define VFAIL 5 /* bad command */
+#define VCMD 6 /* single char command (eg, X) */
+#define VREDO 7 /* . */
+#define VLIT 8 /* ^V */
+#define VSEARCH 9 /* /, ? */
+#define VVERSION 10 /* <ESC> ^V */
+#define VPREFIX2 11 /* ^[[ and ^[O in insert mode */
+
+static struct edstate *save_edstate(struct edstate *old);
+static void restore_edstate(struct edstate *old, struct edstate *news);
+static void free_edstate(struct edstate *old);
+
+static struct edstate ebuf;
+static struct edstate undobuf;
+
+static struct edstate *es; /* current editor state */
+static struct edstate *undo;
+
+static char *ibuf; /* input buffer */
+static bool first_insert; /* set when starting in insert mode */
+static int saved_inslen; /* saved inslen for first insert */
+static int inslen; /* length of input buffer */
+static int srchlen; /* length of current search pattern */
+static char *ybuf; /* yank buffer */
+static int yanklen; /* length of yank buffer */
+static int fsavecmd = ' '; /* last find command */
+static int fsavech; /* character to find */
+static char lastcmd[MAXVICMD]; /* last non-move command */
+static int lastac; /* argcnt for lastcmd */
+static int lastsearch = ' '; /* last search command */
+static char srchpat[SRCHLEN]; /* last search pattern */
+static int insert; /* <>0 in insert mode */
+static int hnum; /* position in history */
+static int ohnum; /* history line copied (after mod) */
+static int hlast; /* 1 past last position in history */
+static int state;
+
+/*
+ * Information for keeping track of macros that are being expanded.
+ * The format of buf is the alias contents followed by a NUL byte followed
+ * by the name (letter) of the alias. The end of the buffer is marked by
+ * a double NUL. The name of the alias is stored so recursive macros can
+ * be detected.
+ */
+struct macro_state {
+ unsigned char *p; /* current position in buf */
+ unsigned char *buf; /* pointer to macro(s) being expanded */
+ size_t len; /* how much data in buffer */
+};
+static struct macro_state macro;
+
+/* last input was expanded */
+static enum expand_mode {
+ NONE = 0, EXPAND, COMPLETE, PRINT
+} expanded;
+
+static int
+x_vi(char *buf)
+{
+ int c;
+
+ state = VNORMAL;
+ ohnum = hnum = hlast = histnum(-1) + 1;
+ insert = INSERT;
+ saved_inslen = inslen;
+ first_insert = true;
+ inslen = 0;
+ vi_macro_reset();
+
+ ebuf.cbuf = buf;
+ if (undobuf.cbuf == NULL) {
+ ibuf = alloc(LINE, AEDIT);
+ ybuf = alloc(LINE, AEDIT);
+ undobuf.cbuf = alloc(LINE, AEDIT);
+ }
+ undobuf.cbufsize = ebuf.cbufsize = LINE;
+ undobuf.linelen = ebuf.linelen = 0;
+ undobuf.cursor = ebuf.cursor = 0;
+ undobuf.winleft = ebuf.winleft = 0;
+ es = &ebuf;
+ undo = &undobuf;
+
+ x_init_prompt(true);
+ x_col = pwidth;
+
+ if (wbuf_len != x_cols - 3 && ((wbuf_len = x_cols - 3))) {
+ wbuf[0] = aresize(wbuf[0], wbuf_len, AEDIT);
+ wbuf[1] = aresize(wbuf[1], wbuf_len, AEDIT);
+ }
+ if (wbuf_len) {
+ memset(wbuf[0], ' ', wbuf_len);
+ memset(wbuf[1], ' ', wbuf_len);
+ }
+ winwidth = x_cols - pwidth - 3;
+ win = 0;
+ morec = ' ';
+ lastref = 1;
+ holdlen = 0;
+
+ editmode = 2;
+ x_flush();
+ while (/* CONSTCOND */ 1) {
+ if (macro.p) {
+ c = (unsigned char)*macro.p++;
+ /* end of current macro? */
+ if (!c) {
+ /* more macros left to finish? */
+ if (*macro.p++)
+ continue;
+ /* must be the end of all the macros */
+ vi_macro_reset();
+ c = x_getc();
+ }
+ } else
+ c = x_getc();
+
+ if (c == -1)
+ break;
+ if (state != VLIT) {
+ if (c == edchars.intr || c == edchars.quit) {
+ /* pretend we got an interrupt */
+ x_vi_zotc(c);
+ x_flush();
+ trapsig(c == edchars.intr ? SIGINT : SIGQUIT);
+ x_mode(false);
+ unwind(LSHELL);
+ } else if (c == edchars.eof && state != VVERSION) {
+ if (es->linelen == 0) {
+ x_vi_zotc(edchars.eof);
+ c = -1;
+ break;
+ }
+ continue;
+ }
+ }
+ if (vi_hook(c))
+ break;
+ x_flush();
+ }
+
+ x_putc('\r');
+ x_putc('\n');
+ x_flush();
+
+ if (c == -1 || (ssize_t)LINE <= es->linelen)
+ return (-1);
+
+ if (es->cbuf != buf)
+ memcpy(buf, es->cbuf, es->linelen);
+
+ buf[es->linelen++] = '\n';
+
+ return (es->linelen);
+}
+
+static int
+vi_hook(int ch)
+{
+ static char curcmd[MAXVICMD], locpat[SRCHLEN];
+ static int cmdlen, argc1, argc2;
+
+ switch (state) {
+
+ case VNORMAL:
+ if (insert != 0) {
+ if (ch == CTRL('v')) {
+ state = VLIT;
+ ch = '^';
+ }
+ switch (vi_insert(ch)) {
+ case -1:
+ vi_error();
+ state = VNORMAL;
+ break;
+ case 0:
+ if (state == VLIT) {
+ es->cursor--;
+ refresh(0);
+ } else
+ refresh(insert != 0);
+ break;
+ case 1:
+ return (1);
+ }
+ } else {
+ if (ch == '\r' || ch == '\n')
+ return (1);
+ cmdlen = 0;
+ argc1 = 0;
+ if (ch >= '1' && ch <= '9') {
+ argc1 = ch - '0';
+ state = VARG1;
+ } else {
+ curcmd[cmdlen++] = ch;
+ state = nextstate(ch);
+ if (state == VSEARCH) {
+ save_cbuf();
+ es->cursor = 0;
+ es->linelen = 0;
+ if (putbuf(ch == '/' ? "/" : "?", 1,
+ false) != 0)
+ return (-1);
+ refresh(0);
+ }
+ if (state == VVERSION) {
+ save_cbuf();
+ es->cursor = 0;
+ es->linelen = 0;
+ putbuf(KSH_VERSION,
+ strlen(KSH_VERSION), false);
+ refresh(0);
+ }
+ }
+ }
+ break;
+
+ case VLIT:
+ if (is_bad(ch)) {
+ del_range(es->cursor, es->cursor + 1);
+ vi_error();
+ } else
+ es->cbuf[es->cursor++] = ch;
+ refresh(1);
+ state = VNORMAL;
+ break;
+
+ case VVERSION:
+ restore_cbuf();
+ state = VNORMAL;
+ refresh(0);
+ break;
+
+ case VARG1:
+ if (ksh_isdigit(ch))
+ argc1 = argc1 * 10 + ch - '0';
+ else {
+ curcmd[cmdlen++] = ch;
+ state = nextstate(ch);
+ }
+ break;
+
+ case VEXTCMD:
+ argc2 = 0;
+ if (ch >= '1' && ch <= '9') {
+ argc2 = ch - '0';
+ state = VARG2;
+ return (0);
+ } else {
+ curcmd[cmdlen++] = ch;
+ if (ch == curcmd[0])
+ state = VCMD;
+ else if (is_move(ch))
+ state = nextstate(ch);
+ else
+ state = VFAIL;
+ }
+ break;
+
+ case VARG2:
+ if (ksh_isdigit(ch))
+ argc2 = argc2 * 10 + ch - '0';
+ else {
+ if (argc1 == 0)
+ argc1 = argc2;
+ else
+ argc1 *= argc2;
+ curcmd[cmdlen++] = ch;
+ if (ch == curcmd[0])
+ state = VCMD;
+ else if (is_move(ch))
+ state = nextstate(ch);
+ else
+ state = VFAIL;
+ }
+ break;
+
+ case VXCH:
+ if (ch == CTRL('['))
+ state = VNORMAL;
+ else {
+ curcmd[cmdlen++] = ch;
+ state = VCMD;
+ }
+ break;
+
+ case VSEARCH:
+ if (ch == '\r' || ch == '\n' /*|| ch == CTRL('[')*/ ) {
+ restore_cbuf();
+ /* Repeat last search? */
+ if (srchlen == 0) {
+ if (!srchpat[0]) {
+ vi_error();
+ state = VNORMAL;
+ refresh(0);
+ return (0);
+ }
+ } else {
+ locpat[srchlen] = '\0';
+ memcpy(srchpat, locpat, srchlen + 1);
+ }
+ state = VCMD;
+ } else if (ch == edchars.erase || ch == CTRL('h')) {
+ if (srchlen != 0) {
+ srchlen--;
+ es->linelen -= char_len(locpat[srchlen]);
+ es->cursor = es->linelen;
+ refresh(0);
+ return (0);
+ }
+ restore_cbuf();
+ state = VNORMAL;
+ refresh(0);
+ } else if (ch == edchars.kill) {
+ srchlen = 0;
+ es->linelen = 1;
+ es->cursor = 1;
+ refresh(0);
+ return (0);
+ } else if (ch == edchars.werase) {
+ unsigned int i, n;
+ struct edstate new_es, *save_es;
+
+ new_es.cursor = srchlen;
+ new_es.cbuf = locpat;
+
+ save_es = es;
+ es = &new_es;
+ n = backword(1);
+ es = save_es;
+
+ i = (unsigned)srchlen;
+ while (--i >= n)
+ es->linelen -= char_len(locpat[i]);
+ srchlen = (int)n;
+ es->cursor = es->linelen;
+ refresh(0);
+ return (0);
+ } else {
+ if (srchlen == SRCHLEN - 1)
+ vi_error();
+ else {
+ locpat[srchlen++] = ch;
+ if (ISCTRL(ch) && /* but not C1 */ ch < 0x80) {
+ if ((size_t)es->linelen + 2 >
+ (size_t)es->cbufsize)
+ vi_error();
+ es->cbuf[es->linelen++] = '^';
+ es->cbuf[es->linelen++] = UNCTRL(ch);
+ } else {
+ if (es->linelen >= es->cbufsize)
+ vi_error();
+ es->cbuf[es->linelen++] = ch;
+ }
+ es->cursor = es->linelen;
+ refresh(0);
+ }
+ return (0);
+ }
+ break;
+
+ case VPREFIX2:
+ state = VFAIL;
+ switch (ch) {
+ case 'A':
+ /* the cursor may not be at the BOL */
+ if (!es->cursor)
+ break;
+ /* nor further in the line than we can search for */
+ if ((size_t)es->cursor >= sizeof(srchpat) - 1)
+ es->cursor = sizeof(srchpat) - 2;
+ /* anchor the search pattern */
+ srchpat[0] = '^';
+ /* take the current line up to the cursor */
+ memmove(srchpat + 1, es->cbuf, es->cursor);
+ srchpat[es->cursor + 1] = '\0';
+ /* set a magic flag */
+ argc1 = 2 + (int)es->cursor;
+ /* and emulate a backwards history search */
+ lastsearch = '/';
+ *curcmd = 'n';
+ goto pseudo_VCMD;
+ }
+ break;
+ }
+
+ switch (state) {
+ case VCMD:
+ pseudo_VCMD:
+ state = VNORMAL;
+ switch (vi_cmd(argc1, curcmd)) {
+ case -1:
+ vi_error();
+ refresh(0);
+ break;
+ case 0:
+ if (insert != 0)
+ inslen = 0;
+ refresh(insert != 0);
+ break;
+ case 1:
+ refresh(0);
+ return (1);
+ case 2:
+ /* back from a 'v' command - don't redraw the screen */
+ return (1);
+ }
+ break;
+
+ case VREDO:
+ state = VNORMAL;
+ if (argc1 != 0)
+ lastac = argc1;
+ switch (vi_cmd(lastac, lastcmd)) {
+ case -1:
+ vi_error();
+ refresh(0);
+ break;
+ case 0:
+ if (insert != 0) {
+ if (lastcmd[0] == 's' || lastcmd[0] == 'c' ||
+ lastcmd[0] == 'C') {
+ if (redo_insert(1) != 0)
+ vi_error();
+ } else {
+ if (redo_insert(lastac) != 0)
+ vi_error();
+ }
+ }
+ refresh(0);
+ break;
+ case 1:
+ refresh(0);
+ return (1);
+ case 2:
+ /* back from a 'v' command - can't happen */
+ break;
+ }
+ break;
+
+ case VFAIL:
+ state = VNORMAL;
+ vi_error();
+ break;
+ }
+ return (0);
+}
+
+static int
+nextstate(int ch)
+{
+ if (is_extend(ch))
+ return (VEXTCMD);
+ else if (is_srch(ch))
+ return (VSEARCH);
+ else if (is_long(ch))
+ return (VXCH);
+ else if (ch == '.')
+ return (VREDO);
+ else if (ch == CTRL('v'))
+ return (VVERSION);
+ else if (is_cmd(ch))
+ return (VCMD);
+ else
+ return (VFAIL);
+}
+
+static int
+vi_insert(int ch)
+{
+ int tcursor;
+
+ if (ch == edchars.erase || ch == CTRL('h')) {
+ if (insert == REPLACE) {
+ if (es->cursor == undo->cursor) {
+ vi_error();
+ return (0);
+ }
+ if (inslen > 0)
+ inslen--;
+ es->cursor--;
+ if (es->cursor >= undo->linelen)
+ es->linelen--;
+ else
+ es->cbuf[es->cursor] = undo->cbuf[es->cursor];
+ } else {
+ if (es->cursor == 0)
+ return (0);
+ if (inslen > 0)
+ inslen--;
+ es->cursor--;
+ es->linelen--;
+ memmove(&es->cbuf[es->cursor], &es->cbuf[es->cursor + 1],
+ es->linelen - es->cursor + 1);
+ }
+ expanded = NONE;
+ return (0);
+ }
+ if (ch == edchars.kill) {
+ if (es->cursor != 0) {
+ inslen = 0;
+ memmove(es->cbuf, &es->cbuf[es->cursor],
+ es->linelen - es->cursor);
+ es->linelen -= es->cursor;
+ es->cursor = 0;
+ }
+ expanded = NONE;
+ return (0);
+ }
+ if (ch == edchars.werase) {
+ if (es->cursor != 0) {
+ tcursor = backword(1);
+ memmove(&es->cbuf[tcursor], &es->cbuf[es->cursor],
+ es->linelen - es->cursor);
+ es->linelen -= es->cursor - tcursor;
+ if (inslen < es->cursor - tcursor)
+ inslen = 0;
+ else
+ inslen -= es->cursor - tcursor;
+ es->cursor = tcursor;
+ }
+ expanded = NONE;
+ return (0);
+ }
+ /*
+ * If any chars are entered before escape, trash the saved insert
+ * buffer (if user inserts & deletes char, ibuf gets trashed and
+ * we don't want to use it)
+ */
+ if (first_insert && ch != CTRL('['))
+ saved_inslen = 0;
+ switch (ch) {
+ case '\0':
+ return (-1);
+
+ case '\r':
+ case '\n':
+ return (1);
+
+ case CTRL('['):
+ expanded = NONE;
+ if (first_insert) {
+ first_insert = false;
+ if (inslen == 0) {
+ inslen = saved_inslen;
+ return (redo_insert(0));
+ }
+ lastcmd[0] = 'a';
+ lastac = 1;
+ }
+ if (lastcmd[0] == 's' || lastcmd[0] == 'c' ||
+ lastcmd[0] == 'C')
+ return (redo_insert(0));
+ else
+ return (redo_insert(lastac - 1));
+
+ /* { Begin nonstandard vi commands */
+ case CTRL('x'):
+ expand_word(0);
+ break;
+
+ case CTRL('f'):
+ complete_word(0, 0);
+ break;
+
+ case CTRL('e'):
+ print_expansions(es, 0);
+ break;
+
+ case CTRL('i'):
+ if (Flag(FVITABCOMPLETE)) {
+ complete_word(0, 0);
+ break;
+ }
+ /* FALLTHROUGH */
+ /* End nonstandard vi commands } */
+
+ default:
+ if (es->linelen >= es->cbufsize - 1)
+ return (-1);
+ ibuf[inslen++] = ch;
+ if (insert == INSERT) {
+ memmove(&es->cbuf[es->cursor + 1], &es->cbuf[es->cursor],
+ es->linelen - es->cursor);
+ es->linelen++;
+ }
+ es->cbuf[es->cursor++] = ch;
+ if (insert == REPLACE && es->cursor > es->linelen)
+ es->linelen++;
+ expanded = NONE;
+ }
+ return (0);
+}
+
+static int
+vi_cmd(int argcnt, const char *cmd)
+{
+ int ncursor;
+ int cur, c1, c2, c3 = 0;
+ int any;
+ struct edstate *t;
+
+ if (argcnt == 0 && !is_zerocount(*cmd))
+ argcnt = 1;
+
+ if (is_move(*cmd)) {
+ if ((cur = domove(argcnt, cmd, 0)) >= 0) {
+ if (cur == es->linelen && cur != 0)
+ cur--;
+ es->cursor = cur;
+ } else
+ return (-1);
+ } else {
+ /* Don't save state in middle of macro.. */
+ if (is_undoable(*cmd) && !macro.p) {
+ undo->winleft = es->winleft;
+ memmove(undo->cbuf, es->cbuf, es->linelen);
+ undo->linelen = es->linelen;
+ undo->cursor = es->cursor;
+ lastac = argcnt;
+ memmove(lastcmd, cmd, MAXVICMD);
+ }
+ switch (*cmd) {
+
+ case CTRL('l'):
+ case CTRL('r'):
+ redraw_line(true);
+ break;
+
+ case '@':
+ {
+ static char alias[] = "_\0";
+ struct tbl *ap;
+ size_t olen, nlen;
+ char *p, *nbuf;
+
+ /* lookup letter in alias list... */
+ alias[1] = cmd[1];
+ ap = ktsearch(&aliases, alias, hash(alias));
+ if (!cmd[1] || !ap || !(ap->flag & ISSET))
+ return (-1);
+ /* check if this is a recursive call... */
+ if ((p = (char *)macro.p))
+ while ((p = strnul(p)) && p[1])
+ if (*++p == cmd[1])
+ return (-1);
+ /* insert alias into macro buffer */
+ nlen = strlen(ap->val.s) + 1;
+ olen = !macro.p ? 2 :
+ macro.len - (macro.p - macro.buf);
+ /*
+ * at this point, it's fairly reasonable that
+ * nlen + olen + 2 doesn't overflow
+ */
+ nbuf = alloc(nlen + 1 + olen, AEDIT);
+ memcpy(nbuf, ap->val.s, nlen);
+ nbuf[nlen++] = cmd[1];
+ if (macro.p) {
+ memcpy(nbuf + nlen, macro.p, olen);
+ afree(macro.buf, AEDIT);
+ nlen += olen;
+ } else {
+ nbuf[nlen++] = '\0';
+ nbuf[nlen++] = '\0';
+ }
+ macro.p = macro.buf = (unsigned char *)nbuf;
+ macro.len = nlen;
+ }
+ break;
+
+ case 'a':
+ modified = 1;
+ hnum = hlast;
+ if (es->linelen != 0)
+ es->cursor++;
+ insert = INSERT;
+ break;
+
+ case 'A':
+ modified = 1;
+ hnum = hlast;
+ del_range(0, 0);
+ es->cursor = es->linelen;
+ insert = INSERT;
+ break;
+
+ case 'S':
+ es->cursor = domove(1, "^", 1);
+ del_range(es->cursor, es->linelen);
+ modified = 1;
+ hnum = hlast;
+ insert = INSERT;
+ break;
+
+ case 'Y':
+ cmd = "y$";
+ /* ahhhhhh... */
+ case 'c':
+ case 'd':
+ case 'y':
+ if (*cmd == cmd[1]) {
+ c1 = *cmd == 'c' ? domove(1, "^", 1) : 0;
+ c2 = es->linelen;
+ } else if (!is_move(cmd[1]))
+ return (-1);
+ else {
+ if ((ncursor = domove(argcnt, &cmd[1], 1)) < 0)
+ return (-1);
+ if (*cmd == 'c' &&
+ (cmd[1] == 'w' || cmd[1] == 'W') &&
+ !ksh_isspace(es->cbuf[es->cursor])) {
+ do {
+ --ncursor;
+ } while (ksh_isspace(es->cbuf[ncursor]));
+ ncursor++;
+ }
+ if (ncursor > es->cursor) {
+ c1 = es->cursor;
+ c2 = ncursor;
+ } else {
+ c1 = ncursor;
+ c2 = es->cursor;
+ if (cmd[1] == '%')
+ c2++;
+ }
+ }
+ if (*cmd != 'c' && c1 != c2)
+ yank_range(c1, c2);
+ if (*cmd != 'y') {
+ del_range(c1, c2);
+ es->cursor = c1;
+ }
+ if (*cmd == 'c') {
+ modified = 1;
+ hnum = hlast;
+ insert = INSERT;
+ }
+ break;
+
+ case 'p':
+ modified = 1;
+ hnum = hlast;
+ if (es->linelen != 0)
+ es->cursor++;
+ while (putbuf(ybuf, yanklen, false) == 0 &&
+ --argcnt > 0)
+ ;
+ if (es->cursor != 0)
+ es->cursor--;
+ if (argcnt != 0)
+ return (-1);
+ break;
+
+ case 'P':
+ modified = 1;
+ hnum = hlast;
+ any = 0;
+ while (putbuf(ybuf, yanklen, false) == 0 &&
+ --argcnt > 0)
+ any = 1;
+ if (any && es->cursor != 0)
+ es->cursor--;
+ if (argcnt != 0)
+ return (-1);
+ break;
+
+ case 'C':
+ modified = 1;
+ hnum = hlast;
+ del_range(es->cursor, es->linelen);
+ insert = INSERT;
+ break;
+
+ case 'D':
+ yank_range(es->cursor, es->linelen);
+ del_range(es->cursor, es->linelen);
+ if (es->cursor != 0)
+ es->cursor--;
+ break;
+
+ case 'g':
+ if (!argcnt)
+ argcnt = hlast;
+ /* FALLTHROUGH */
+ case 'G':
+ if (!argcnt)
+ argcnt = 1;
+ else
+ argcnt = hlast - (source->line - argcnt);
+ if (grabhist(modified, argcnt - 1) < 0)
+ return (-1);
+ else {
+ modified = 0;
+ hnum = argcnt - 1;
+ }
+ break;
+
+ case 'i':
+ modified = 1;
+ hnum = hlast;
+ insert = INSERT;
+ break;
+
+ case 'I':
+ modified = 1;
+ hnum = hlast;
+ es->cursor = domove(1, "^", 1);
+ insert = INSERT;
+ break;
+
+ case 'j':
+ case '+':
+ case CTRL('n'):
+ if (grabhist(modified, hnum + argcnt) < 0)
+ return (-1);
+ else {
+ modified = 0;
+ hnum += argcnt;
+ }
+ break;
+
+ case 'k':
+ case '-':
+ case CTRL('p'):
+ if (grabhist(modified, hnum - argcnt) < 0)
+ return (-1);
+ else {
+ modified = 0;
+ hnum -= argcnt;
+ }
+ break;
+
+ case 'r':
+ if (es->linelen == 0)
+ return (-1);
+ modified = 1;
+ hnum = hlast;
+ if (cmd[1] == 0)
+ vi_error();
+ else {
+ int n;
+
+ if (es->cursor + argcnt > es->linelen)
+ return (-1);
+ for (n = 0; n < argcnt; ++n)
+ es->cbuf[es->cursor + n] = cmd[1];
+ es->cursor += n - 1;
+ }
+ break;
+
+ case 'R':
+ modified = 1;
+ hnum = hlast;
+ insert = REPLACE;
+ break;
+
+ case 's':
+ if (es->linelen == 0)
+ return (-1);
+ modified = 1;
+ hnum = hlast;
+ if (es->cursor + argcnt > es->linelen)
+ argcnt = es->linelen - es->cursor;
+ del_range(es->cursor, es->cursor + argcnt);
+ insert = INSERT;
+ break;
+
+ case 'v':
+ if (!argcnt) {
+ if (es->linelen == 0)
+ return (-1);
+ if (modified) {
+ es->cbuf[es->linelen] = '\0';
+ histsave(&source->line, es->cbuf, true,
+ true);
+ } else
+ argcnt = source->line + 1 -
+ (hlast - hnum);
+ }
+ if (argcnt)
+ shf_snprintf(es->cbuf, es->cbufsize, "%s %d",
+ "fc -e ${VISUAL:-${EDITOR:-vi}} --",
+ argcnt);
+ else
+ strlcpy(es->cbuf,
+ "fc -e ${VISUAL:-${EDITOR:-vi}} --",
+ es->cbufsize);
+ es->linelen = strlen(es->cbuf);
+ return (2);
+
+ case 'x':
+ if (es->linelen == 0)
+ return (-1);
+ modified = 1;
+ hnum = hlast;
+ if (es->cursor + argcnt > es->linelen)
+ argcnt = es->linelen - es->cursor;
+ yank_range(es->cursor, es->cursor + argcnt);
+ del_range(es->cursor, es->cursor + argcnt);
+ break;
+
+ case 'X':
+ if (es->cursor > 0) {
+ modified = 1;
+ hnum = hlast;
+ if (es->cursor < argcnt)
+ argcnt = es->cursor;
+ yank_range(es->cursor - argcnt, es->cursor);
+ del_range(es->cursor - argcnt, es->cursor);
+ es->cursor -= argcnt;
+ } else
+ return (-1);
+ break;
+
+ case 'u':
+ t = es;
+ es = undo;
+ undo = t;
+ break;
+
+ case 'U':
+ if (!modified)
+ return (-1);
+ if (grabhist(modified, ohnum) < 0)
+ return (-1);
+ modified = 0;
+ hnum = ohnum;
+ break;
+
+ case '?':
+ if (hnum == hlast)
+ hnum = -1;
+ /* ahhh */
+ case '/':
+ c3 = 1;
+ srchlen = 0;
+ lastsearch = *cmd;
+ /* FALLTHROUGH */
+ case 'n':
+ case 'N':
+ if (lastsearch == ' ')
+ return (-1);
+ if (lastsearch == '?')
+ c1 = 1;
+ else
+ c1 = 0;
+ if (*cmd == 'N')
+ c1 = !c1;
+ if ((c2 = grabsearch(modified, hnum,
+ c1, srchpat)) < 0) {
+ if (c3) {
+ restore_cbuf();
+ refresh(0);
+ }
+ return (-1);
+ } else {
+ modified = 0;
+ hnum = c2;
+ ohnum = hnum;
+ }
+ if (argcnt >= 2) {
+ /* flag from cursor-up command */
+ es->cursor = argcnt - 2;
+ return (0);
+ }
+ break;
+ case '_':
+ {
+ bool inspace;
+ char *p, *sp;
+
+ if (histnum(-1) < 0)
+ return (-1);
+ p = *histpos();
+#define issp(c) (ksh_isspace(c) || (c) == '\n')
+ if (argcnt) {
+ while (*p && issp(*p))
+ p++;
+ while (*p && --argcnt) {
+ while (*p && !issp(*p))
+ p++;
+ while (*p && issp(*p))
+ p++;
+ }
+ if (!*p)
+ return (-1);
+ sp = p;
+ } else {
+ sp = p;
+ inspace = false;
+ while (*p) {
+ if (issp(*p))
+ inspace = true;
+ else if (inspace) {
+ inspace = false;
+ sp = p;
+ }
+ p++;
+ }
+ p = sp;
+ }
+ modified = 1;
+ hnum = hlast;
+ if (es->cursor != es->linelen)
+ es->cursor++;
+ while (*p && !issp(*p)) {
+ argcnt++;
+ p++;
+ }
+ if (putbuf(" ", 1, false) != 0 ||
+ putbuf(sp, argcnt, false) != 0) {
+ if (es->cursor != 0)
+ es->cursor--;
+ return (-1);
+ }
+ insert = INSERT;
+ }
+ break;
+
+ case '~':
+ {
+ char *p;
+ int i;
+
+ if (es->linelen == 0)
+ return (-1);
+ for (i = 0; i < argcnt; i++) {
+ p = &es->cbuf[es->cursor];
+ if (ksh_islower(*p)) {
+ modified = 1;
+ hnum = hlast;
+ *p = ksh_toupper(*p);
+ } else if (ksh_isupper(*p)) {
+ modified = 1;
+ hnum = hlast;
+ *p = ksh_tolower(*p);
+ }
+ if (es->cursor < es->linelen - 1)
+ es->cursor++;
+ }
+ break;
+ }
+
+ case '#':
+ {
+ int ret = x_do_comment(es->cbuf, es->cbufsize,
+ &es->linelen);
+ if (ret >= 0)
+ es->cursor = 0;
+ return (ret);
+ }
+
+ /* AT&T ksh */
+ case '=':
+ /* Nonstandard vi/ksh */
+ case CTRL('e'):
+ print_expansions(es, 1);
+ break;
+
+
+ /* Nonstandard vi/ksh */
+ case CTRL('i'):
+ if (!Flag(FVITABCOMPLETE))
+ return (-1);
+ complete_word(1, argcnt);
+ break;
+
+ /* some annoying AT&T kshs */
+ case CTRL('['):
+ if (!Flag(FVIESCCOMPLETE))
+ return (-1);
+ /* AT&T ksh */
+ case '\\':
+ /* Nonstandard vi/ksh */
+ case CTRL('f'):
+ complete_word(1, argcnt);
+ break;
+
+
+ /* AT&T ksh */
+ case '*':
+ /* Nonstandard vi/ksh */
+ case CTRL('x'):
+ expand_word(1);
+ break;
+
+
+ /* mksh: cursor movement */
+ case '[':
+ case 'O':
+ state = VPREFIX2;
+ if (es->linelen != 0)
+ es->cursor++;
+ insert = INSERT;
+ return (0);
+ }
+ if (insert == 0 && es->cursor != 0 && es->cursor >= es->linelen)
+ es->cursor--;
+ }
+ return (0);
+}
+
+static int
+domove(int argcnt, const char *cmd, int sub)
+{
+ int bcount, i = 0, t;
+ int ncursor = 0;
+
+ switch (*cmd) {
+ case 'b':
+ if (!sub && es->cursor == 0)
+ return (-1);
+ ncursor = backword(argcnt);
+ break;
+
+ case 'B':
+ if (!sub && es->cursor == 0)
+ return (-1);
+ ncursor = Backword(argcnt);
+ break;
+
+ case 'e':
+ if (!sub && es->cursor + 1 >= es->linelen)
+ return (-1);
+ ncursor = endword(argcnt);
+ if (sub && ncursor < es->linelen)
+ ncursor++;
+ break;
+
+ case 'E':
+ if (!sub && es->cursor + 1 >= es->linelen)
+ return (-1);
+ ncursor = Endword(argcnt);
+ if (sub && ncursor < es->linelen)
+ ncursor++;
+ break;
+
+ case 'f':
+ case 'F':
+ case 't':
+ case 'T':
+ fsavecmd = *cmd;
+ fsavech = cmd[1];
+ /* drop through */
+
+ case ',':
+ case ';':
+ if (fsavecmd == ' ')
+ return (-1);
+ i = fsavecmd == 'f' || fsavecmd == 'F';
+ t = fsavecmd > 'a';
+ if (*cmd == ',')
+ t = !t;
+ if ((ncursor = findch(fsavech, argcnt, tobool(t),
+ tobool(i))) < 0)
+ return (-1);
+ if (sub && t)
+ ncursor++;
+ break;
+
+ case 'h':
+ case CTRL('h'):
+ if (!sub && es->cursor == 0)
+ return (-1);
+ ncursor = es->cursor - argcnt;
+ if (ncursor < 0)
+ ncursor = 0;
+ break;
+
+ case ' ':
+ case 'l':
+ if (!sub && es->cursor + 1 >= es->linelen)
+ return (-1);
+ if (es->linelen != 0) {
+ ncursor = es->cursor + argcnt;
+ if (ncursor > es->linelen)
+ ncursor = es->linelen;
+ }
+ break;
+
+ case 'w':
+ if (!sub && es->cursor + 1 >= es->linelen)
+ return (-1);
+ ncursor = forwword(argcnt);
+ break;
+
+ case 'W':
+ if (!sub && es->cursor + 1 >= es->linelen)
+ return (-1);
+ ncursor = Forwword(argcnt);
+ break;
+
+ case '0':
+ ncursor = 0;
+ break;
+
+ case '^':
+ ncursor = 0;
+ while (ncursor < es->linelen - 1 &&
+ ksh_isspace(es->cbuf[ncursor]))
+ ncursor++;
+ break;
+
+ case '|':
+ ncursor = argcnt;
+ if (ncursor > es->linelen)
+ ncursor = es->linelen;
+ if (ncursor)
+ ncursor--;
+ break;
+
+ case '$':
+ if (es->linelen != 0)
+ ncursor = es->linelen;
+ else
+ ncursor = 0;
+ break;
+
+ case '%':
+ ncursor = es->cursor;
+ while (ncursor < es->linelen &&
+ (i = bracktype(es->cbuf[ncursor])) == 0)
+ ncursor++;
+ if (ncursor == es->linelen)
+ return (-1);
+ bcount = 1;
+ do {
+ if (i > 0) {
+ if (++ncursor >= es->linelen)
+ return (-1);
+ } else {
+ if (--ncursor < 0)
+ return (-1);
+ }
+ t = bracktype(es->cbuf[ncursor]);
+ if (t == i)
+ bcount++;
+ else if (t == -i)
+ bcount--;
+ } while (bcount != 0);
+ if (sub && i > 0)
+ ncursor++;
+ break;
+
+ default:
+ return (-1);
+ }
+ return (ncursor);
+}
+
+static int
+redo_insert(int count)
+{
+ while (count-- > 0)
+ if (putbuf(ibuf, inslen, tobool(insert == REPLACE)) != 0)
+ return (-1);
+ if (es->cursor > 0)
+ es->cursor--;
+ insert = 0;
+ return (0);
+}
+
+static void
+yank_range(int a, int b)
+{
+ yanklen = b - a;
+ if (yanklen != 0)
+ memmove(ybuf, &es->cbuf[a], yanklen);
+}
+
+static int
+bracktype(int ch)
+{
+ switch (ch) {
+
+ case '(':
+ return (1);
+
+ case '[':
+ return (2);
+
+ case '{':
+ return (3);
+
+ case ')':
+ return (-1);
+
+ case ']':
+ return (-2);
+
+ case '}':
+ return (-3);
+
+ default:
+ return (0);
+ }
+}
+
+/*
+ * Non user interface editor routines below here
+ */
+
+static void
+save_cbuf(void)
+{
+ memmove(holdbufp, es->cbuf, es->linelen);
+ holdlen = es->linelen;
+ holdbufp[holdlen] = '\0';
+}
+
+static void
+restore_cbuf(void)
+{
+ es->cursor = 0;
+ es->linelen = holdlen;
+ memmove(es->cbuf, holdbufp, holdlen);
+}
+
+/* return a new edstate */
+static struct edstate *
+save_edstate(struct edstate *old)
+{
+ struct edstate *news;
+
+ news = alloc(sizeof(struct edstate), AEDIT);
+ news->cbuf = alloc(old->cbufsize, AEDIT);
+ memcpy(news->cbuf, old->cbuf, old->linelen);
+ news->cbufsize = old->cbufsize;
+ news->linelen = old->linelen;
+ news->cursor = old->cursor;
+ news->winleft = old->winleft;
+ return (news);
+}
+
+static void
+restore_edstate(struct edstate *news, struct edstate *old)
+{
+ memcpy(news->cbuf, old->cbuf, old->linelen);
+ news->linelen = old->linelen;
+ news->cursor = old->cursor;
+ news->winleft = old->winleft;
+ free_edstate(old);
+}
+
+static void
+free_edstate(struct edstate *old)
+{
+ afree(old->cbuf, AEDIT);
+ afree(old, AEDIT);
+}
+
+/*
+ * this is used for calling x_escape() in complete_word()
+ */
+static int
+x_vi_putbuf(const char *s, size_t len)
+{
+ return (putbuf(s, len, false));
+}
+
+static int
+putbuf(const char *buf, ssize_t len, bool repl)
+{
+ if (len == 0)
+ return (0);
+ if (repl) {
+ if (es->cursor + len >= es->cbufsize)
+ return (-1);
+ if (es->cursor + len > es->linelen)
+ es->linelen = es->cursor + len;
+ } else {
+ if (es->linelen + len >= es->cbufsize)
+ return (-1);
+ memmove(&es->cbuf[es->cursor + len], &es->cbuf[es->cursor],
+ es->linelen - es->cursor);
+ es->linelen += len;
+ }
+ memmove(&es->cbuf[es->cursor], buf, len);
+ es->cursor += len;
+ return (0);
+}
+
+static void
+del_range(int a, int b)
+{
+ if (es->linelen != b)
+ memmove(&es->cbuf[a], &es->cbuf[b], es->linelen - b);
+ es->linelen -= b - a;
+}
+
+static int
+findch(int ch, int cnt, bool forw, bool incl)
+{
+ int ncursor;
+
+ if (es->linelen == 0)
+ return (-1);
+ ncursor = es->cursor;
+ while (cnt--) {
+ do {
+ if (forw) {
+ if (++ncursor == es->linelen)
+ return (-1);
+ } else {
+ if (--ncursor < 0)
+ return (-1);
+ }
+ } while (es->cbuf[ncursor] != ch);
+ }
+ if (!incl) {
+ if (forw)
+ ncursor--;
+ else
+ ncursor++;
+ }
+ return (ncursor);
+}
+
+static int
+forwword(int argcnt)
+{
+ int ncursor;
+
+ ncursor = es->cursor;
+ while (ncursor < es->linelen && argcnt--) {
+ if (ksh_isalnux(es->cbuf[ncursor]))
+ while (ksh_isalnux(es->cbuf[ncursor]) &&
+ ncursor < es->linelen)
+ ncursor++;
+ else if (!ksh_isspace(es->cbuf[ncursor]))
+ while (!ksh_isalnux(es->cbuf[ncursor]) &&
+ !ksh_isspace(es->cbuf[ncursor]) &&
+ ncursor < es->linelen)
+ ncursor++;
+ while (ksh_isspace(es->cbuf[ncursor]) &&
+ ncursor < es->linelen)
+ ncursor++;
+ }
+ return (ncursor);
+}
+
+static int
+backword(int argcnt)
+{
+ int ncursor;
+
+ ncursor = es->cursor;
+ while (ncursor > 0 && argcnt--) {
+ while (--ncursor > 0 && ksh_isspace(es->cbuf[ncursor]))
+ ;
+ if (ncursor > 0) {
+ if (ksh_isalnux(es->cbuf[ncursor]))
+ while (--ncursor >= 0 &&
+ ksh_isalnux(es->cbuf[ncursor]))
+ ;
+ else
+ while (--ncursor >= 0 &&
+ !ksh_isalnux(es->cbuf[ncursor]) &&
+ !ksh_isspace(es->cbuf[ncursor]))
+ ;
+ ncursor++;
+ }
+ }
+ return (ncursor);
+}
+
+static int
+endword(int argcnt)
+{
+ int ncursor;
+
+ ncursor = es->cursor;
+ while (ncursor < es->linelen && argcnt--) {
+ while (++ncursor < es->linelen - 1 &&
+ ksh_isspace(es->cbuf[ncursor]))
+ ;
+ if (ncursor < es->linelen - 1) {
+ if (ksh_isalnux(es->cbuf[ncursor]))
+ while (++ncursor < es->linelen &&
+ ksh_isalnux(es->cbuf[ncursor]))
+ ;
+ else
+ while (++ncursor < es->linelen &&
+ !ksh_isalnux(es->cbuf[ncursor]) &&
+ !ksh_isspace(es->cbuf[ncursor]))
+ ;
+ ncursor--;
+ }
+ }
+ return (ncursor);
+}
+
+static int
+Forwword(int argcnt)
+{
+ int ncursor;
+
+ ncursor = es->cursor;
+ while (ncursor < es->linelen && argcnt--) {
+ while (!ksh_isspace(es->cbuf[ncursor]) &&
+ ncursor < es->linelen)
+ ncursor++;
+ while (ksh_isspace(es->cbuf[ncursor]) &&
+ ncursor < es->linelen)
+ ncursor++;
+ }
+ return (ncursor);
+}
+
+static int
+Backword(int argcnt)
+{
+ int ncursor;
+
+ ncursor = es->cursor;
+ while (ncursor > 0 && argcnt--) {
+ while (--ncursor >= 0 && ksh_isspace(es->cbuf[ncursor]))
+ ;
+ while (ncursor >= 0 && !ksh_isspace(es->cbuf[ncursor]))
+ ncursor--;
+ ncursor++;
+ }
+ return (ncursor);
+}
+
+static int
+Endword(int argcnt)
+{
+ int ncursor;
+
+ ncursor = es->cursor;
+ while (ncursor < es->linelen - 1 && argcnt--) {
+ while (++ncursor < es->linelen - 1 &&
+ ksh_isspace(es->cbuf[ncursor]))
+ ;
+ if (ncursor < es->linelen - 1) {
+ while (++ncursor < es->linelen &&
+ !ksh_isspace(es->cbuf[ncursor]))
+ ;
+ ncursor--;
+ }
+ }
+ return (ncursor);
+}
+
+static int
+grabhist(int save, int n)
+{
+ char *hptr;
+
+ if (n < 0 || n > hlast)
+ return (-1);
+ if (n == hlast) {
+ restore_cbuf();
+ ohnum = n;
+ return (0);
+ }
+ (void)histnum(n);
+ if ((hptr = *histpos()) == NULL) {
+ internal_warningf("%s: %s", "grabhist", "bad history array");
+ return (-1);
+ }
+ if (save)
+ save_cbuf();
+ if ((es->linelen = strlen(hptr)) >= es->cbufsize)
+ es->linelen = es->cbufsize - 1;
+ memmove(es->cbuf, hptr, es->linelen);
+ es->cursor = 0;
+ ohnum = n;
+ return (0);
+}
+
+static int
+grabsearch(int save, int start, int fwd, const char *pat)
+{
+ char *hptr;
+ int hist;
+ bool anchored;
+
+ if ((start == 0 && fwd == 0) || (start >= hlast - 1 && fwd == 1))
+ return (-1);
+ if (fwd)
+ start++;
+ else
+ start--;
+ anchored = *pat == '^' ? (++pat, true) : false;
+ if ((hist = findhist(start, fwd, pat, anchored)) < 0) {
+ /* (start != 0 && fwd && match(holdbufp, pat) >= 0) */
+ if (start != 0 && fwd && strcmp(holdbufp, pat) >= 0) {
+ restore_cbuf();
+ return (0);
+ } else
+ return (-1);
+ }
+ if (save)
+ save_cbuf();
+ histnum(hist);
+ hptr = *histpos();
+ if ((es->linelen = strlen(hptr)) >= es->cbufsize)
+ es->linelen = es->cbufsize - 1;
+ memmove(es->cbuf, hptr, es->linelen);
+ es->cursor = 0;
+ return (hist);
+}
+
+static void
+redraw_line(bool newl)
+{
+ if (wbuf_len)
+ memset(wbuf[win], ' ', wbuf_len);
+ if (newl) {
+ x_putc('\r');
+ x_putc('\n');
+ }
+ if (prompt_trunc != -1)
+ pprompt(prompt, prompt_trunc);
+ x_col = pwidth;
+ morec = ' ';
+}
+
+static void
+refresh(int leftside)
+{
+ if (leftside < 0)
+ leftside = lastref;
+ else
+ lastref = leftside;
+ if (outofwin())
+ rewindow();
+ display(wbuf[1 - win], wbuf[win], leftside);
+ win = 1 - win;
+}
+
+static int
+outofwin(void)
+{
+ int cur, col;
+
+ if (es->cursor < es->winleft)
+ return (1);
+ col = 0;
+ cur = es->winleft;
+ while (cur < es->cursor)
+ col = newcol((unsigned char)es->cbuf[cur++], col);
+ if (col >= winwidth)
+ return (1);
+ return (0);
+}
+
+static void
+rewindow(void)
+{
+ int tcur, tcol;
+ int holdcur1, holdcol1;
+ int holdcur2, holdcol2;
+
+ holdcur1 = holdcur2 = tcur = 0;
+ holdcol1 = holdcol2 = tcol = 0;
+ while (tcur < es->cursor) {
+ if (tcol - holdcol2 > winwidth / 2) {
+ holdcur1 = holdcur2;
+ holdcol1 = holdcol2;
+ holdcur2 = tcur;
+ holdcol2 = tcol;
+ }
+ tcol = newcol((unsigned char)es->cbuf[tcur++], tcol);
+ }
+ while (tcol - holdcol1 > winwidth / 2)
+ holdcol1 = newcol((unsigned char)es->cbuf[holdcur1++],
+ holdcol1);
+ es->winleft = holdcur1;
+}
+
+static int
+newcol(unsigned char ch, int col)
+{
+ if (ch == '\t')
+ return ((col | 7) + 1);
+ return (col + char_len(ch));
+}
+
+static void
+display(char *wb1, char *wb2, int leftside)
+{
+ unsigned char ch;
+ char *twb1, *twb2, mc;
+ int cur, col, cnt;
+ int ncol = 0;
+ int moreright;
+
+ col = 0;
+ cur = es->winleft;
+ moreright = 0;
+ twb1 = wb1;
+ while (col < winwidth && cur < es->linelen) {
+ if (cur == es->cursor && leftside)
+ ncol = col + pwidth;
+ if ((ch = es->cbuf[cur]) == '\t')
+ do {
+ *twb1++ = ' ';
+ } while (++col < winwidth && (col & 7) != 0);
+ else if (col < winwidth) {
+ if (ISCTRL(ch) && /* but not C1 */ ch < 0x80) {
+ *twb1++ = '^';
+ if (++col < winwidth) {
+ *twb1++ = UNCTRL(ch);
+ col++;
+ }
+ } else {
+ *twb1++ = ch;
+ col++;
+ }
+ }
+ if (cur == es->cursor && !leftside)
+ ncol = col + pwidth - 1;
+ cur++;
+ }
+ if (cur == es->cursor)
+ ncol = col + pwidth;
+ if (col < winwidth) {
+ while (col < winwidth) {
+ *twb1++ = ' ';
+ col++;
+ }
+ } else
+ moreright++;
+ *twb1 = ' ';
+
+ col = pwidth;
+ cnt = winwidth;
+ twb1 = wb1;
+ twb2 = wb2;
+ while (cnt--) {
+ if (*twb1 != *twb2) {
+ if (x_col != col)
+ ed_mov_opt(col, wb1);
+ x_putc(*twb1);
+ x_col++;
+ }
+ twb1++;
+ twb2++;
+ col++;
+ }
+ if (es->winleft > 0 && moreright)
+ /*
+ * POSIX says to use * for this but that is a globbing
+ * character and may confuse people; + is more innocuous
+ */
+ mc = '+';
+ else if (es->winleft > 0)
+ mc = '<';
+ else if (moreright)
+ mc = '>';
+ else
+ mc = ' ';
+ if (mc != morec) {
+ ed_mov_opt(pwidth + winwidth + 1, wb1);
+ x_putc(mc);
+ x_col++;
+ morec = mc;
+ }
+ if (x_col != ncol)
+ ed_mov_opt(ncol, wb1);
+}
+
+static void
+ed_mov_opt(int col, char *wb)
+{
+ if (col < x_col) {
+ if (col + 1 < x_col - col) {
+ x_putc('\r');
+ if (prompt_trunc != -1)
+ pprompt(prompt, prompt_trunc);
+ x_col = pwidth;
+ while (x_col++ < col)
+ x_putcf(*wb++);
+ } else {
+ while (x_col-- > col)
+ x_putc('\b');
+ }
+ } else {
+ wb = &wb[x_col - pwidth];
+ while (x_col++ < col)
+ x_putcf(*wb++);
+ }
+ x_col = col;
+}
+
+
+/* replace word with all expansions (ie, expand word*) */
+static int
+expand_word(int cmd)
+{
+ static struct edstate *buf;
+ int rval = 0, nwords, start, end, i;
+ char **words;
+
+ /* Undo previous expansion */
+ if (cmd == 0 && expanded == EXPAND && buf) {
+ restore_edstate(es, buf);
+ buf = 0;
+ expanded = NONE;
+ return (0);
+ }
+ if (buf) {
+ free_edstate(buf);
+ buf = 0;
+ }
+
+ i = XCF_COMMAND_FILE | XCF_FULLPATH;
+ nwords = x_cf_glob(&i, es->cbuf, es->linelen, es->cursor,
+ &start, &end, &words);
+ if (nwords == 0) {
+ vi_error();
+ return (-1);
+ }
+
+ buf = save_edstate(es);
+ expanded = EXPAND;
+ del_range(start, end);
+ es->cursor = start;
+ i = 0;
+ while (i < nwords) {
+ if (x_escape(words[i], strlen(words[i]), x_vi_putbuf) != 0) {
+ rval = -1;
+ break;
+ }
+ if (++i < nwords && putbuf(" ", 1, false) != 0) {
+ rval = -1;
+ break;
+ }
+ }
+ i = buf->cursor - end;
+ if (rval == 0 && i > 0)
+ es->cursor += i;
+ modified = 1;
+ hnum = hlast;
+ insert = INSERT;
+ lastac = 0;
+ refresh(0);
+ return (rval);
+}
+
+static int
+complete_word(int cmd, int count)
+{
+ static struct edstate *buf;
+ int rval, nwords, start, end, flags;
+ size_t match_len;
+ char **words;
+ char *match;
+ bool is_unique;
+
+ /* Undo previous completion */
+ if (cmd == 0 && expanded == COMPLETE && buf) {
+ print_expansions(buf, 0);
+ expanded = PRINT;
+ return (0);
+ }
+ if (cmd == 0 && expanded == PRINT && buf) {
+ restore_edstate(es, buf);
+ buf = 0;
+ expanded = NONE;
+ return (0);
+ }
+ if (buf) {
+ free_edstate(buf);
+ buf = 0;
+ }
+
+ /*
+ * XCF_FULLPATH for count 'cause the menu printed by
+ * print_expansions() was done this way.
+ */
+ flags = XCF_COMMAND_FILE;
+ if (count)
+ flags |= XCF_FULLPATH;
+ nwords = x_cf_glob(&flags, es->cbuf, es->linelen, es->cursor,
+ &start, &end, &words);
+ if (nwords == 0) {
+ vi_error();
+ return (-1);
+ }
+ if (count) {
+ int i;
+
+ count--;
+ if (count >= nwords) {
+ vi_error();
+ x_print_expansions(nwords, words,
+ tobool(flags & XCF_IS_COMMAND));
+ x_free_words(nwords, words);
+ redraw_line(false);
+ return (-1);
+ }
+ /*
+ * Expand the count'th word to its basename
+ */
+ if (flags & XCF_IS_COMMAND) {
+ match = words[count] +
+ x_basename(words[count], NULL);
+ /* If more than one possible match, use full path */
+ for (i = 0; i < nwords; i++)
+ if (i != count &&
+ strcmp(words[i] + x_basename(words[i],
+ NULL), match) == 0) {
+ match = words[count];
+ break;
+ }
+ } else
+ match = words[count];
+ match_len = strlen(match);
+ is_unique = true;
+ /* expanded = PRINT; next call undo */
+ } else {
+ match = words[0];
+ match_len = x_longest_prefix(nwords, words);
+ /* next call will list completions */
+ expanded = COMPLETE;
+ is_unique = nwords == 1;
+ }
+
+ buf = save_edstate(es);
+ del_range(start, end);
+ es->cursor = start;
+
+ /*
+ * escape all shell-sensitive characters and put the result into
+ * command buffer
+ */
+ rval = x_escape(match, match_len, x_vi_putbuf);
+
+ if (rval == 0 && is_unique) {
+ /*
+ * If exact match, don't undo. Allows directory completions
+ * to be used (ie, complete the next portion of the path).
+ */
+ expanded = NONE;
+
+ /*
+ * append a space if this is a non-directory match
+ * and not a parameter or homedir substitution
+ */
+ if (match_len > 0 && match[match_len - 1] != '/' &&
+ !(flags & XCF_IS_NOSPACE))
+ rval = putbuf(" ", 1, false);
+ }
+ x_free_words(nwords, words);
+
+ modified = 1;
+ hnum = hlast;
+ insert = INSERT;
+ /* prevent this from being redone... */
+ lastac = 0;
+ refresh(0);
+
+ return (rval);
+}
+
+static int
+print_expansions(struct edstate *est, int cmd MKSH_A_UNUSED)
+{
+ int start, end, nwords, i;
+ char **words;
+
+ i = XCF_COMMAND_FILE | XCF_FULLPATH;
+ nwords = x_cf_glob(&i, est->cbuf, est->linelen, est->cursor,
+ &start, &end, &words);
+ if (nwords == 0) {
+ vi_error();
+ return (-1);
+ }
+ x_print_expansions(nwords, words, tobool(i & XCF_IS_COMMAND));
+ x_free_words(nwords, words);
+ redraw_line(false);
+ return (0);
+}
+
+/* Similar to x_zotc(emacs.c), but no tab weirdness */
+static void
+x_vi_zotc(int c)
+{
+ if (ISCTRL(c)) {
+ x_putc('^');
+ c = UNCTRL(c);
+ }
+ x_putc(c);
+}
+
+static void
+vi_error(void)
+{
+ /* Beem out of any macros as soon as an error occurs */
+ vi_macro_reset();
+ x_putc(7);
+ x_flush();
+}
+
+static void
+vi_macro_reset(void)
+{
+ if (macro.p) {
+ afree(macro.buf, AEDIT);
+ memset((char *)¯o, 0, sizeof(macro));
+ }
+}
+#endif /* !MKSH_S_NOVI */
+
+/* called from main.c */
+void
+x_init(void)
+{
+ int i, j;
+
+ /*
+ * Set edchars to -2 to force initial binding, except
+ * we need default values for some deficient systems…
+ */
+ edchars.erase = edchars.kill = edchars.intr = edchars.quit =
+ edchars.eof = -2;
+ /* ^W */
+ edchars.werase = 027;
+
+ /* command line editing specific memory allocation */
+ ainit(AEDIT);
+ holdbufp = alloc(LINE, AEDIT);
+
+ /* initialise Emacs command line editing mode */
+ x_nextcmd = -1;
+
+ x_tab = alloc2(X_NTABS, sizeof(*x_tab), AEDIT);
+ for (j = 0; j < X_TABSZ; j++)
+ x_tab[0][j] = XFUNC_insert;
+ for (i = 1; i < X_NTABS; i++)
+ for (j = 0; j < X_TABSZ; j++)
+ x_tab[i][j] = XFUNC_error;
+ for (i = 0; i < (int)NELEM(x_defbindings); i++)
+ x_tab[x_defbindings[i].xdb_tab][x_defbindings[i].xdb_char]
+ = x_defbindings[i].xdb_func;
+
+#ifndef MKSH_SMALL
+ x_atab = alloc2(X_NTABS, sizeof(*x_atab), AEDIT);
+ for (i = 1; i < X_NTABS; i++)
+ for (j = 0; j < X_TABSZ; j++)
+ x_atab[i][j] = NULL;
+#endif
+}
+
+#ifdef DEBUG_LEAKS
+void
+x_done(void)
+{
+ if (x_tab != NULL)
+ afreeall(AEDIT);
+}
+#endif
+#endif /* !MKSH_NO_CMDLINE_EDITING */
Deleted: vendor/MirOS/mksh/R50/eval.c
===================================================================
--- vendor/MirOS/mksh/dist/eval.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/eval.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1853 +0,0 @@
-/* $OpenBSD: eval.c,v 1.39 2013/07/01 17:25:27 jca Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- * 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-
-__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.142 2013/07/24 18:03:57 tg Exp $");
-
-/*
- * string expansion
- *
- * first pass: quoting, IFS separation, ~, ${}, $() and $(()) substitution.
- * second pass: alternation ({,}), filename expansion (*?[]).
- */
-
-/* expansion generator state */
-typedef struct {
- /* not including an "int type;" member, see expand() */
- /* string */
- const char *str;
- /* source */
- union {
- /* string[] */
- const char **strv;
- /* file */
- struct shf *shf;
- } u;
- /* variable in ${var...} */
- struct tbl *var;
- /* split "$@" / call waitlast in $() */
- bool split;
-} Expand;
-
-#define XBASE 0 /* scanning original */
-#define XSUB 1 /* expanding ${} string */
-#define XARGSEP 2 /* ifs0 between "$*" */
-#define XARG 3 /* expanding $*, $@ */
-#define XCOM 4 /* expanding $() */
-#define XNULLSUB 5 /* "$@" when $# is 0 (don't generate word) */
-#define XSUBMID 6 /* middle of expanding ${} */
-
-/* States used for field splitting */
-#define IFS_WORD 0 /* word has chars (or quotes) */
-#define IFS_WS 1 /* have seen IFS white-space */
-#define IFS_NWS 2 /* have seen IFS non-white-space */
-
-static int varsub(Expand *, const char *, const char *, int *, int *);
-static int comsub(Expand *, const char *, int);
-static char *valsub(struct op *, Area *);
-static char *trimsub(char *, char *, int);
-static void glob(char *, XPtrV *, bool);
-static void globit(XString *, char **, char *, XPtrV *, int);
-static const char *maybe_expand_tilde(const char *, XString *, char **, int);
-#ifndef MKSH_NOPWNAM
-static char *homedir(char *);
-#endif
-static void alt_expand(XPtrV *, char *, char *, char *, int);
-static int utflen(const char *);
-static void utfincptr(const char *, mksh_ari_t *);
-
-/* UTFMODE functions */
-static int
-utflen(const char *s)
-{
- size_t n;
-
- if (UTFMODE) {
- n = 0;
- while (*s) {
- s += utf_ptradj(s);
- ++n;
- }
- } else
- n = strlen(s);
-
- if (n > 2147483647)
- n = 2147483647;
- return ((int)n);
-}
-
-static void
-utfincptr(const char *s, mksh_ari_t *lp)
-{
- const char *cp = s;
-
- while ((*lp)--)
- cp += utf_ptradj(cp);
- *lp = cp - s;
-}
-
-/* compile and expand word */
-char *
-substitute(const char *cp, int f)
-{
- struct source *s, *sold;
-
- sold = source;
- s = pushs(SWSTR, ATEMP);
- s->start = s->str = cp;
- source = s;
- if (yylex(ONEWORD) != LWORD)
- internal_errorf("bad substitution");
- source = sold;
- afree(s, ATEMP);
- return (evalstr(yylval.cp, f));
-}
-
-/*
- * expand arg-list
- */
-char **
-eval(const char **ap, int f)
-{
- XPtrV w;
-
- if (*ap == NULL) {
- union mksh_ccphack vap;
-
- vap.ro = ap;
- return (vap.rw);
- }
- XPinit(w, 32);
- /* space for shell name */
- XPput(w, NULL);
- while (*ap != NULL)
- expand(*ap++, &w, f);
- XPput(w, NULL);
- return ((char **)XPclose(w) + 1);
-}
-
-/*
- * expand string
- */
-char *
-evalstr(const char *cp, int f)
-{
- XPtrV w;
- char *dp = null;
-
- XPinit(w, 1);
- expand(cp, &w, f);
- if (XPsize(w))
- dp = *XPptrv(w);
- XPfree(w);
- return (dp);
-}
-
-/*
- * expand string - return only one component
- * used from iosetup to expand redirection files
- */
-char *
-evalonestr(const char *cp, int f)
-{
- XPtrV w;
- char *rv;
-
- XPinit(w, 1);
- expand(cp, &w, f);
- switch (XPsize(w)) {
- case 0:
- rv = null;
- break;
- case 1:
- rv = (char *) *XPptrv(w);
- break;
- default:
- rv = evalstr(cp, f&~DOGLOB);
- break;
- }
- XPfree(w);
- return (rv);
-}
-
-/* for nested substitution: ${var:=$var2} */
-typedef struct SubType {
- struct tbl *var; /* variable for ${var..} */
- struct SubType *prev; /* old type */
- struct SubType *next; /* poped type (to avoid re-allocating) */
- size_t base; /* begin position of expanded word */
- short stype; /* [=+-?%#] action after expanded word */
- short f; /* saved value of f (DOPAT, etc) */
- uint8_t quotep; /* saved value of quote (for ${..[%#]..}) */
- uint8_t quotew; /* saved value of quote (for ${..[+-=]..}) */
-} SubType;
-
-void
-expand(
- /* input word */
- const char *ccp,
- /* output words */
- XPtrV *wp,
- /* DO* flags */
- int f)
-{
- int c = 0;
- /* expansion type */
- int type;
- /* quoted */
- int quote = 0;
- /* destination string and live pointer */
- XString ds;
- char *dp;
- /* source */
- const char *sp;
- /* second pass flags */
- int fdo;
- /* have word */
- int word;
- /* field splitting of parameter/command substitution */
- int doblank;
- /* expansion variables */
- Expand x = {
- NULL, { NULL }, NULL, 0
- };
- SubType st_head, *st;
- /* record number of trailing newlines in COMSUB */
- int newlines = 0;
- bool saw_eq, make_magic;
- int tilde_ok;
- size_t len;
- char *cp;
-
- if (ccp == NULL)
- internal_errorf("expand(NULL)");
- /* for alias, readonly, set, typeset commands */
- if ((f & DOVACHECK) && is_wdvarassign(ccp)) {
- f &= ~(DOVACHECK|DOBLANK|DOGLOB|DOTILDE);
- f |= DOASNTILDE;
- }
- if (Flag(FNOGLOB))
- f &= ~DOGLOB;
- if (Flag(FMARKDIRS))
- f |= DOMARKDIRS;
- if (Flag(FBRACEEXPAND) && (f & DOGLOB))
- f |= DOBRACE;
-
- /* init destination string */
- Xinit(ds, dp, 128, ATEMP);
- type = XBASE;
- sp = ccp;
- fdo = 0;
- saw_eq = false;
- /* must be 1/0 */
- tilde_ok = (f & (DOTILDE|DOASNTILDE)) ? 1 : 0;
- doblank = 0;
- make_magic = false;
- word = (f&DOBLANK) ? IFS_WS : IFS_WORD;
- /* clang doesn't know OSUBST comes before CSUBST */
- memset(&st_head, 0, sizeof(st_head));
- st = &st_head;
-
- while (/* CONSTCOND */ 1) {
- Xcheck(ds, dp);
-
- switch (type) {
- case XBASE:
- /* original prefixed string */
- c = *sp++;
- switch (c) {
- case EOS:
- c = 0;
- break;
- case CHAR:
- c = *sp++;
- break;
- case QCHAR:
- /* temporary quote */
- quote |= 2;
- c = *sp++;
- break;
- case OQUOTE:
- word = IFS_WORD;
- tilde_ok = 0;
- quote = 1;
- continue;
- case CQUOTE:
- quote = st->quotew;
- continue;
- case COMSUB:
- case FUNSUB:
- case VALSUB:
- tilde_ok = 0;
- if (f & DONTRUNCOMMAND) {
- word = IFS_WORD;
- *dp++ = '$';
- *dp++ = c == COMSUB ? '(' : '{';
- if (c != COMSUB)
- *dp++ = c == FUNSUB ? ' ' : '|';
- while (*sp != '\0') {
- Xcheck(ds, dp);
- *dp++ = *sp++;
- }
- if (c != COMSUB) {
- *dp++ = ';';
- *dp++ = '}';
- } else
- *dp++ = ')';
- } else {
- type = comsub(&x, sp, c);
- if (type != XBASE && (f & DOBLANK))
- doblank++;
- sp = strnul(sp) + 1;
- newlines = 0;
- }
- continue;
- case EXPRSUB:
- word = IFS_WORD;
- tilde_ok = 0;
- if (f & DONTRUNCOMMAND) {
- *dp++ = '$'; *dp++ = '('; *dp++ = '(';
- while (*sp != '\0') {
- Xcheck(ds, dp);
- *dp++ = *sp++;
- }
- *dp++ = ')'; *dp++ = ')';
- } else {
- struct tbl v;
-
- v.flag = DEFINED|ISSET|INTEGER;
- /* not default */
- v.type = 10;
- v.name[0] = '\0';
- v_evaluate(&v, substitute(sp, 0),
- KSH_UNWIND_ERROR, true);
- sp = strnul(sp) + 1;
- cp = str_val(&v);
- while (*cp) {
- Xcheck(ds, dp);
- *dp++ = *cp++;
- }
- }
- continue;
- case OSUBST: {
- /* ${{#}var{:}[=+-?#%]word} */
- /*-
- * format is:
- * OSUBST [{x] plain-variable-part \0
- * compiled-word-part CSUBST [}x]
- * This is where all syntax checking gets done...
- */
- /* skip the { or x (}) */
- const char *varname = ++sp;
- int stype;
- int slen = 0;
-
- /* skip variable */
- sp = cstrchr(sp, '\0') + 1;
- type = varsub(&x, varname, sp, &stype, &slen);
- if (type < 0) {
- char *beg, *end, *str;
- unwind_substsyn:
- /* restore sp */
- sp = varname - 2;
- end = (beg = wdcopy(sp, ATEMP)) +
- (wdscan(sp, CSUBST) - sp);
- /* ({) the } or x is already skipped */
- if (end < wdscan(beg, EOS))
- *end = EOS;
- str = snptreef(NULL, 64, "%S", beg);
- afree(beg, ATEMP);
- errorf("%s: %s", str, "bad substitution");
- }
- if (f & DOBLANK)
- doblank++;
- tilde_ok = 0;
- if (type == XBASE) {
- /* expand? */
- if (!st->next) {
- SubType *newst;
-
- newst = alloc(sizeof(SubType), ATEMP);
- newst->next = NULL;
- newst->prev = st;
- st->next = newst;
- }
- st = st->next;
- st->stype = stype;
- st->base = Xsavepos(ds, dp);
- st->f = f;
- if (x.var == &vtemp) {
- st->var = tempvar();
- st->var->flag &= ~INTEGER;
- /* can't fail here */
- setstr(st->var,
- str_val(x.var),
- KSH_RETURN_ERROR | 0x4);
- } else
- st->var = x.var;
-
- st->quotew = st->quotep = quote;
- /* skip qualifier(s) */
- if (stype)
- sp += slen;
- switch (stype & 0x17F) {
- case 0x100 | '#': {
- char *beg, *end;
- mksh_ari_t seed;
- register uint32_t h;
-
- beg = wdcopy(sp, ATEMP);
- end = beg + (wdscan(sp, CSUBST) - sp);
- end[-2] = EOS;
- end = wdstrip(beg, 0);
- afree(beg, ATEMP);
- evaluate(substitute(end, 0),
- &seed, KSH_UNWIND_ERROR, true);
- /* hash with seed, for now */
- h = seed;
- NZATUpdateString(h,
- str_val(st->var));
- NZAATFinish(h);
- x.str = shf_smprintf("%08X",
- (unsigned int)h);
- break;
- }
- case 0x100 | 'Q': {
- struct shf shf;
-
- shf_sopen(NULL, 0, SHF_WR|SHF_DYNAMIC, &shf);
- print_value_quoted(&shf, str_val(st->var));
- x.str = shf_sclose(&shf);
- break;
- }
- case '0': {
- char *beg, *mid, *end, *stg;
- mksh_ari_t from = 0, num = -1, flen, finc = 0;
-
- beg = wdcopy(sp, ATEMP);
- mid = beg + (wdscan(sp, ADELIM) - sp);
- stg = beg + (wdscan(sp, CSUBST) - sp);
- if (mid >= stg)
- goto unwind_substsyn;
- mid[-2] = EOS;
- if (mid[-1] == /*{*/'}') {
- sp += mid - beg - 1;
- end = NULL;
- } else {
- end = mid +
- (wdscan(mid, ADELIM) - mid);
- if (end >= stg ||
- /* more than max delimiters */
- end[-1] != /*{*/ '}')
- goto unwind_substsyn;
- end[-2] = EOS;
- sp += end - beg - 1;
- }
- evaluate(substitute(stg = wdstrip(beg, 0), 0),
- &from, KSH_UNWIND_ERROR, true);
- afree(stg, ATEMP);
- if (end) {
- evaluate(substitute(stg = wdstrip(mid, 0), 0),
- &num, KSH_UNWIND_ERROR, true);
- afree(stg, ATEMP);
- }
- afree(beg, ATEMP);
- beg = str_val(st->var);
- flen = utflen(beg);
- if (from < 0) {
- if (-from < flen)
- finc = flen + from;
- } else
- finc = from < flen ? from : flen;
- if (UTFMODE)
- utfincptr(beg, &finc);
- beg += finc;
- flen = utflen(beg);
- if (num < 0 || num > flen)
- num = flen;
- if (UTFMODE)
- utfincptr(beg, &num);
- strndupx(x.str, beg, num, ATEMP);
- goto do_CSUBST;
- }
- case '/': {
- char *s, *p, *d, *sbeg, *end;
- char *pat, *rrep;
- char *tpat0, *tpat1, *tpat2;
-
- s = wdcopy(sp, ATEMP);
- p = s + (wdscan(sp, ADELIM) - sp);
- d = s + (wdscan(sp, CSUBST) - sp);
- if (p >= d)
- goto unwind_substsyn;
- p[-2] = EOS;
- if (p[-1] == /*{*/'}')
- d = NULL;
- else
- d[-2] = EOS;
- sp += (d ? d : p) - s - 1;
- tpat0 = wdstrip(s,
- WDS_KEEPQ | WDS_MAGIC);
- pat = substitute(tpat0, 0);
- if (d) {
- d = wdstrip(p, WDS_KEEPQ);
- rrep = substitute(d, 0);
- afree(d, ATEMP);
- } else
- rrep = null;
- afree(s, ATEMP);
- s = d = pat;
- while (*s)
- if (*s != '\\' ||
- s[1] == '%' ||
- s[1] == '#' ||
- s[1] == '\0' ||
- /* XXX really? */ s[1] == '\\' ||
- s[1] == '/')
- *d++ = *s++;
- else
- s++;
- *d = '\0';
- afree(tpat0, ATEMP);
-
- /* check for special cases */
- d = str_val(st->var);
- mkssert(d != NULL);
- switch (*pat) {
- case '#':
- /* anchor at begin */
- tpat0 = pat + 1;
- tpat1 = rrep;
- tpat2 = d;
- break;
- case '%':
- /* anchor at end */
- tpat0 = pat + 1;
- tpat1 = d;
- tpat2 = rrep;
- break;
- case '\0':
- /* empty pattern */
- goto no_repl;
- default:
- tpat0 = pat;
- /* silence gcc */
- tpat1 = tpat2 = NULL;
- }
- if (gmatchx(null, tpat0, false)) {
- /*
- * pattern matches
- * the empty string
- */
- if (tpat0 == pat)
- goto no_repl;
- /* but is anchored */
- s = shf_smprintf("%s%s",
- tpat1, tpat2);
- goto do_repl;
- }
-
- /* prepare string on which to work */
- strdupx(s, d, ATEMP);
- sbeg = s;
-
- /* first see if we have any match at all */
- tpat0 = pat;
- if (*pat == '#') {
- /* anchor at the beginning */
- tpat1 = shf_smprintf("%s%c*", ++tpat0, MAGIC);
- tpat2 = tpat1;
- } else if (*pat == '%') {
- /* anchor at the end */
- tpat1 = shf_smprintf("%c*%s", MAGIC, ++tpat0);
- tpat2 = tpat0;
- } else {
- /* float */
- tpat1 = shf_smprintf("%c*%s%c*", MAGIC, pat, MAGIC);
- tpat2 = tpat1 + 2;
- }
- again_repl:
- /*
- * this would not be necessary if gmatchx would return
- * the start and end values of a match found, like re*
- */
- if (!gmatchx(sbeg, tpat1, false))
- goto end_repl;
- end = strnul(s);
- /* now anchor the beginning of the match */
- if (*pat != '#')
- while (sbeg <= end) {
- if (gmatchx(sbeg, tpat2, false))
- break;
- else
- sbeg++;
- }
- /* now anchor the end of the match */
- p = end;
- if (*pat != '%')
- while (p >= sbeg) {
- bool gotmatch;
-
- c = *p;
- *p = '\0';
- gotmatch = tobool(gmatchx(sbeg, tpat0, false));
- *p = c;
- if (gotmatch)
- break;
- p--;
- }
- strndupx(end, s, sbeg - s, ATEMP);
- d = shf_smprintf("%s%s%s", end, rrep, p);
- afree(end, ATEMP);
- sbeg = d + (sbeg - s) + strlen(rrep);
- afree(s, ATEMP);
- s = d;
- if (stype & 0x80)
- goto again_repl;
- end_repl:
- afree(tpat1, ATEMP);
- do_repl:
- x.str = s;
- no_repl:
- afree(pat, ATEMP);
- if (rrep != null)
- afree(rrep, ATEMP);
- goto do_CSUBST;
- }
- case '#':
- case '%':
- /* ! DOBLANK,DOBRACE,DOTILDE */
- f = (f & DONTRUNCOMMAND) |
- DOPAT | DOTEMP;
- st->quotew = quote = 0;
- /*
- * Prepend open pattern (so |
- * in a trim will work as
- * expected)
- */
- if (!Flag(FSH)) {
- *dp++ = MAGIC;
- *dp++ = '@' | 0x80;
- }
- break;
- case '=':
- /*
- * Enabling tilde expansion
- * after :s here is
- * non-standard ksh, but is
- * consistent with rules for
- * other assignments. Not
- * sure what POSIX thinks of
- * this.
- * Not doing tilde expansion
- * for integer variables is a
- * non-POSIX thing - makes
- * sense though, since ~ is
- * a arithmetic operator.
- */
- if (!(x.var->flag & INTEGER))
- f |= DOASNTILDE|DOTILDE;
- f |= DOTEMP;
- /*
- * These will be done after the
- * value has been assigned.
- */
- f &= ~(DOBLANK|DOGLOB|DOBRACE);
- tilde_ok = 1;
- break;
- case '?':
- f &= ~DOBLANK;
- f |= DOTEMP;
- /* FALLTHROUGH */
- default:
- /* Enable tilde expansion */
- tilde_ok = 1;
- f |= DOTILDE;
- }
- } else
- /* skip word */
- sp += wdscan(sp, CSUBST) - sp;
- continue;
- }
- case CSUBST:
- /* only get here if expanding word */
- do_CSUBST:
- /* ({) skip the } or x */
- sp++;
- /* in case of ${unset:-} */
- tilde_ok = 0;
- *dp = '\0';
- quote = st->quotep;
- f = st->f;
- if (f&DOBLANK)
- doblank--;
- switch (st->stype & 0x17F) {
- case '#':
- case '%':
- if (!Flag(FSH)) {
- /* Append end-pattern */
- *dp++ = MAGIC;
- *dp++ = ')';
- }
- *dp = '\0';
- dp = Xrestpos(ds, dp, st->base);
- /*
- * Must use st->var since calling
- * global would break things
- * like x[i+=1].
- */
- x.str = trimsub(str_val(st->var),
- dp, st->stype);
- if (x.str[0] != '\0' || st->quotep)
- type = XSUB;
- else
- type = XNULLSUB;
- if (f&DOBLANK)
- doblank++;
- st = st->prev;
- continue;
- case '=':
- /*
- * Restore our position and substitute
- * the value of st->var (may not be
- * the assigned value in the presence
- * of integer/right-adj/etc attributes).
- */
- dp = Xrestpos(ds, dp, st->base);
- /*
- * Must use st->var since calling
- * global would cause with things
- * like x[i+=1] to be evaluated twice.
- */
- /*
- * Note: not exported by FEXPORT
- * in AT&T ksh.
- */
- /*
- * XXX POSIX says readonly is only
- * fatal for special builtins (setstr
- * does readonly check).
- */
- len = strlen(dp) + 1;
- setstr(st->var,
- debunk(alloc(len, ATEMP),
- dp, len), KSH_UNWIND_ERROR);
- x.str = str_val(st->var);
- type = XSUB;
- if (f&DOBLANK)
- doblank++;
- st = st->prev;
- continue;
- case '?': {
- char *s = Xrestpos(ds, dp, st->base);
-
- errorf("%s: %s", st->var->name,
- dp == s ?
- "parameter null or not set" :
- (debunk(s, s, strlen(s) + 1), s));
- }
- case '0':
- case '/':
- case 0x100 | '#':
- case 0x100 | 'Q':
- dp = Xrestpos(ds, dp, st->base);
- type = XSUB;
- if (f&DOBLANK)
- doblank++;
- st = st->prev;
- continue;
- }
- st = st->prev;
- type = XBASE;
- continue;
-
- case OPAT:
- /* open pattern: *(foo|bar) */
- /* Next char is the type of pattern */
- make_magic = true;
- c = *sp++ | 0x80;
- break;
-
- case SPAT:
- /* pattern separator (|) */
- make_magic = true;
- c = '|';
- break;
-
- case CPAT:
- /* close pattern */
- make_magic = true;
- c = /*(*/ ')';
- break;
- }
- break;
-
- case XNULLSUB:
- /*
- * Special case for "$@" (and "${foo[@]}") - no
- * word is generated if $# is 0 (unless there is
- * other stuff inside the quotes).
- */
- type = XBASE;
- if (f&DOBLANK) {
- doblank--;
- /*
- * not really correct: x=; "$x$@" should
- * generate a null argument and
- * set A; "${@:+}" shouldn't.
- */
- if (dp == Xstring(ds, dp))
- word = IFS_WS;
- }
- continue;
-
- case XSUB:
- case XSUBMID:
- if ((c = *x.str++) == 0) {
- type = XBASE;
- if (f&DOBLANK)
- doblank--;
- continue;
- }
- break;
-
- case XARGSEP:
- type = XARG;
- quote = 1;
- /* FALLTHROUGH */
- case XARG:
- if ((c = *x.str++) == '\0') {
- /*
- * force null words to be created so
- * set -- '' 2 ''; foo "$@" will do
- * the right thing
- */
- if (quote && x.split)
- word = IFS_WORD;
- if ((x.str = *x.u.strv++) == NULL) {
- type = XBASE;
- if (f&DOBLANK)
- doblank--;
- continue;
- }
- c = ifs0;
- if (c == 0) {
- if (quote && !x.split)
- continue;
- /* this is so we don't terminate */
- c = ' ';
- /* now force-emit a word */
- goto emit_word;
- }
- if (quote && x.split) {
- /* terminate word for "$@" */
- type = XARGSEP;
- quote = 0;
- }
- }
- break;
-
- case XCOM:
- if (x.u.shf == NULL) {
- /* $(<...) failed */
- subst_exstat = 1;
- /* fake EOF */
- c = EOF;
- } else if (newlines) {
- /* spit out saved NLs */
- c = '\n';
- --newlines;
- } else {
- while ((c = shf_getc(x.u.shf)) == 0 || c == '\n')
- if (c == '\n')
- /* save newlines */
- newlines++;
- if (newlines && c != EOF) {
- shf_ungetc(c, x.u.shf);
- c = '\n';
- --newlines;
- }
- }
- if (c == EOF) {
- newlines = 0;
- if (x.u.shf)
- shf_close(x.u.shf);
- if (x.split)
- subst_exstat = waitlast();
- type = XBASE;
- if (f&DOBLANK)
- doblank--;
- continue;
- }
- break;
- }
-
- /* check for end of word or IFS separation */
- if (c == 0 || (!quote && (f & DOBLANK) && doblank &&
- !make_magic && ctype(c, C_IFS))) {
- /*-
- * How words are broken up:
- * | value of c
- * word | ws nws 0
- * -----------------------------------
- * IFS_WORD w/WS w/NWS w
- * IFS_WS -/WS w/NWS -
- * IFS_NWS -/NWS w/NWS w
- * (w means generate a word)
- * Note that IFS_NWS/0 generates a word (AT&T ksh
- * doesn't do this, but POSIX does).
- */
- if (word == IFS_WORD ||
- (!ctype(c, C_IFSWS) && c && word == IFS_NWS)) {
- emit_word:
- *dp++ = '\0';
- cp = Xclose(ds, dp);
- if (fdo & DOBRACE)
- /* also does globbing */
- alt_expand(wp, cp, cp,
- cp + Xlength(ds, (dp - 1)),
- fdo | (f & DOMARKDIRS));
- else if (fdo & DOGLOB)
- glob(cp, wp, tobool(f & DOMARKDIRS));
- else if ((f & DOPAT) || !(fdo & DOMAGIC))
- XPput(*wp, cp);
- else
- XPput(*wp, debunk(cp, cp,
- strlen(cp) + 1));
- fdo = 0;
- saw_eq = false;
- tilde_ok = (f & (DOTILDE|DOASNTILDE)) ? 1 : 0;
- if (c == 0)
- return;
- Xinit(ds, dp, 128, ATEMP);
- } else if (c == 0) {
- return;
- } else if (type == XSUB && ctype(c, C_IFS) &&
- !ctype(c, C_IFSWS) && Xlength(ds, dp) == 0) {
- *(cp = alloc(1, ATEMP)) = '\0';
- XPput(*wp, cp);
- type = XSUBMID;
- }
- if (word != IFS_NWS)
- word = ctype(c, C_IFSWS) ? IFS_WS : IFS_NWS;
- } else {
- if (type == XSUB) {
- if (word == IFS_NWS &&
- Xlength(ds, dp) == 0) {
- *(cp = alloc(1, ATEMP)) = '\0';
- XPput(*wp, cp);
- }
- type = XSUBMID;
- }
-
- /* age tilde_ok info - ~ code tests second bit */
- tilde_ok <<= 1;
- /* mark any special second pass chars */
- if (!quote)
- switch (c) {
- case '[':
- case '!':
- case '-':
- case ']':
- /*
- * For character classes - doesn't hurt
- * to have magic !,-,]s outside of
- * [...] expressions.
- */
- if (f & (DOPAT | DOGLOB)) {
- fdo |= DOMAGIC;
- if (c == '[')
- fdo |= f & DOGLOB;
- *dp++ = MAGIC;
- }
- break;
- case '*':
- case '?':
- if (f & (DOPAT | DOGLOB)) {
- fdo |= DOMAGIC | (f & DOGLOB);
- *dp++ = MAGIC;
- }
- break;
- case '{':
- case '}':
- case ',':
- if ((f & DOBRACE) && (c == '{' /*}*/ ||
- (fdo & DOBRACE))) {
- fdo |= DOBRACE|DOMAGIC;
- *dp++ = MAGIC;
- }
- break;
- case '=':
- /* Note first unquoted = for ~ */
- if (!(f & DOTEMP) && !saw_eq &&
- (Flag(FBRACEEXPAND) ||
- (f & DOASNTILDE))) {
- saw_eq = true;
- tilde_ok = 1;
- }
- break;
- case ':':
- /* : */
- /* Note unquoted : for ~ */
- if (!(f & DOTEMP) && (f & DOASNTILDE))
- tilde_ok = 1;
- break;
- case '~':
- /*
- * tilde_ok is reset whenever
- * any of ' " $( $(( ${ } are seen.
- * Note that tilde_ok must be preserved
- * through the sequence ${A=a=}~
- */
- if (type == XBASE &&
- (f & (DOTILDE|DOASNTILDE)) &&
- (tilde_ok & 2)) {
- const char *tcp;
- char *tdp = dp;
-
- tcp = maybe_expand_tilde(sp,
- &ds, &tdp,
- f & DOASNTILDE);
- if (tcp) {
- if (dp != tdp)
- word = IFS_WORD;
- dp = tdp;
- sp = tcp;
- continue;
- }
- }
- break;
- }
- else
- /* undo temporary */
- quote &= ~2;
-
- if (make_magic) {
- make_magic = false;
- fdo |= DOMAGIC | (f & DOGLOB);
- *dp++ = MAGIC;
- } else if (ISMAGIC(c)) {
- fdo |= DOMAGIC;
- *dp++ = MAGIC;
- }
- /* save output char */
- *dp++ = c;
- word = IFS_WORD;
- }
- }
-}
-
-/*
- * Prepare to generate the string returned by ${} substitution.
- */
-static int
-varsub(Expand *xp, const char *sp, const char *word,
- int *stypep, /* becomes qualifier type */
- int *slenp) /* " " len (=, :=, etc.) valid iff *stypep != 0 */
-{
- int c;
- int state; /* next state: XBASE, XARG, XSUB, XNULLSUB */
- int stype; /* substitution type */
- int slen;
- const char *p;
- struct tbl *vp;
- bool zero_ok = false;
-
- if ((stype = sp[0]) == '\0')
- /* Bad variable name */
- return (-1);
-
- xp->var = NULL;
-
- /*-
- * ${#var}, string length (-U: characters, +U: octets) or array size
- * ${%var}, string width (-U: screen columns, +U: octets)
- */
- c = sp[1];
- if (stype == '%' && c == '\0')
- return (-1);
- if ((stype == '#' || stype == '%') && c != '\0') {
- /* Can't have any modifiers for ${#...} or ${%...} */
- if (*word != CSUBST)
- return (-1);
- sp++;
- /* Check for size of array */
- if ((p = cstrchr(sp, '[')) && (p[1] == '*' || p[1] == '@') &&
- p[2] == ']') {
- int n = 0;
-
- if (stype != '#')
- return (-1);
- vp = global(arrayname(sp));
- if (vp->flag & (ISSET|ARRAY))
- zero_ok = true;
- for (; vp; vp = vp->u.array)
- if (vp->flag & ISSET)
- n++;
- c = n;
- } else if (c == '*' || c == '@') {
- if (stype != '#')
- return (-1);
- c = e->loc->argc;
- } else {
- p = str_val(global(sp));
- zero_ok = p != null;
- if (stype == '#')
- c = utflen(p);
- else {
- /* partial utf_mbswidth reimplementation */
- const char *s = p;
- unsigned int wc;
- size_t len;
- int cw;
-
- c = 0;
- while (*s) {
- if (!UTFMODE || (len = utf_mbtowc(&wc,
- s)) == (size_t)-1)
- /* not UTFMODE or not UTF-8 */
- wc = (unsigned char)(*s++);
- else
- /* UTFMODE and UTF-8 */
- s += len;
- /* wc == char or wchar at s++ */
- if ((cw = utf_wcwidth(wc)) == -1) {
- /* 646, 8859-1, 10646 C0/C1 */
- c = -1;
- break;
- }
- c += cw;
- }
- }
- }
- if (Flag(FNOUNSET) && c == 0 && !zero_ok)
- errorf("%s: %s", sp, "parameter not set");
- /* unqualified variable/string substitution */
- *stypep = 0;
- xp->str = shf_smprintf("%d", c);
- return (XSUB);
- }
-
- /* Check for qualifiers in word part */
- stype = 0;
- c = word[slen = 0] == CHAR ? word[1] : 0;
- if (c == ':') {
- slen += 2;
- stype = 0x80;
- c = word[slen + 0] == CHAR ? word[slen + 1] : 0;
- }
- if (!stype && c == '/') {
- slen += 2;
- stype = c;
- if (word[slen] == ADELIM) {
- slen += 2;
- stype |= 0x80;
- }
- } else if (stype == 0x80 && (c == ' ' || c == '0')) {
- stype |= '0';
- } else if (ctype(c, C_SUBOP1)) {
- slen += 2;
- stype |= c;
- } else if (ctype(c, C_SUBOP2)) {
- /* Note: ksh88 allows :%, :%%, etc */
- slen += 2;
- stype = c;
- if (word[slen + 0] == CHAR && c == word[slen + 1]) {
- stype |= 0x80;
- slen += 2;
- }
- } else if (c == '@') {
- /* @x where x is command char */
- slen += 2;
- stype |= 0x100;
- if (word[slen] == CHAR) {
- stype |= word[slen + 1];
- slen += 2;
- }
- } else if (stype)
- /* : is not ok */
- return (-1);
- if (!stype && *word != CSUBST)
- return (-1);
- *stypep = stype;
- *slenp = slen;
-
- c = sp[0];
- if (c == '*' || c == '@') {
- switch (stype & 0x17F) {
- /* can't assign to a vector */
- case '=':
- /* can't trim a vector (yet) */
- case '%':
- case '#':
- case '0':
- case '/':
- case 0x100 | '#':
- case 0x100 | 'Q':
- return (-1);
- }
- if (e->loc->argc == 0) {
- xp->str = null;
- xp->var = global(sp);
- state = c == '@' ? XNULLSUB : XSUB;
- } else {
- xp->u.strv = (const char **)e->loc->argv + 1;
- xp->str = *xp->u.strv++;
- /* $@ */
- xp->split = tobool(c == '@');
- state = XARG;
- }
- /* POSIX 2009? */
- zero_ok = true;
- } else {
- if ((p = cstrchr(sp, '[')) && (p[1] == '*' || p[1] == '@') &&
- p[2] == ']') {
- XPtrV wv;
-
- switch (stype & 0x17F) {
- /* can't assign to a vector */
- case '=':
- /* can't trim a vector (yet) */
- case '%':
- case '#':
- case '?':
- case '0':
- case '/':
- case 0x100 | '#':
- case 0x100 | 'Q':
- return (-1);
- }
- XPinit(wv, 32);
- if ((c = sp[0]) == '!')
- ++sp;
- vp = global(arrayname(sp));
- for (; vp; vp = vp->u.array) {
- if (!(vp->flag&ISSET))
- continue;
- XPput(wv, c == '!' ? shf_smprintf("%lu",
- arrayindex(vp)) :
- str_val(vp));
- }
- if (XPsize(wv) == 0) {
- xp->str = null;
- state = p[1] == '@' ? XNULLSUB : XSUB;
- XPfree(wv);
- } else {
- XPput(wv, 0);
- xp->u.strv = (const char **)XPptrv(wv);
- xp->str = *xp->u.strv++;
- /* ${foo[@]} */
- xp->split = tobool(p[1] == '@');
- state = XARG;
- }
- } else {
- /* Can't assign things like $! or $1 */
- if ((stype & 0x17F) == '=' &&
- ctype(*sp, C_VAR1 | C_DIGIT))
- return (-1);
- if (*sp == '!' && sp[1]) {
- ++sp;
- xp->var = global(sp);
- if (vstrchr(sp, '[')) {
- if (xp->var->flag & ISSET)
- xp->str = shf_smprintf("%lu",
- arrayindex(xp->var));
- else
- xp->str = null;
- } else if (xp->var->flag & ISSET)
- xp->str = xp->var->name;
- else
- /* ksh93 compat */
- xp->str = "0";
- } else {
- xp->var = global(sp);
- xp->str = str_val(xp->var);
- }
- state = XSUB;
- }
- }
-
- c = stype & 0x7F;
- /* test the compiler's code generator */
- if (((stype < 0x100) && (ctype(c, C_SUBOP2) || c == '/' ||
- (((stype&0x80) ? *xp->str=='\0' : xp->str==null) ? /* undef? */
- c == '=' || c == '-' || c == '?' : c == '+'))) ||
- stype == (0x80 | '0') || stype == (0x100 | '#') ||
- stype == (0x100 | 'Q'))
- /* expand word instead of variable value */
- state = XBASE;
- if (Flag(FNOUNSET) && xp->str == null && !zero_ok &&
- (ctype(c, C_SUBOP2) || (state != XBASE && c != '+')))
- errorf("%s: %s", sp, "parameter not set");
- return (state);
-}
-
-/*
- * Run the command in $(...) and read its output.
- */
-static int
-comsub(Expand *xp, const char *cp, int fn MKSH_A_UNUSED)
-{
- Source *s, *sold;
- struct op *t;
- struct shf *shf;
- uint8_t old_utfmode = UTFMODE;
-
- s = pushs(SSTRING, ATEMP);
- s->start = s->str = cp;
- sold = source;
- t = compile(s, true);
- afree(s, ATEMP);
- source = sold;
-
- UTFMODE = old_utfmode;
-
- if (t == NULL)
- return (XBASE);
-
- /* no waitlast() unless specifically enabled later */
- xp->split = false;
-
- if (t->type == TCOM &&
- *t->args == NULL && *t->vars == NULL && t->ioact != NULL) {
- /* $(<file) */
- struct ioword *io = *t->ioact;
- char *name;
-
- if ((io->flag & IOTYPE) != IOREAD)
- errorf("%s: %s", "funny $() command",
- snptreef(NULL, 32, "%R", io));
- shf = shf_open(name = evalstr(io->name, DOTILDE), O_RDONLY, 0,
- SHF_MAPHI|SHF_CLEXEC);
- if (shf == NULL)
- warningf(!Flag(FTALKING), "%s: %s %s: %s", name,
- "can't open", "$(<...) input", cstrerror(errno));
- } else if (fn == FUNSUB) {
- int ofd1;
- struct temp *tf = NULL;
-
- /*
- * create a temporary file, open for reading and writing,
- * with an shf open for reading (buffered) but yet unused
- */
- maketemp(ATEMP, TT_FUNSUB, &tf);
- if (!tf->shf) {
- errorf("can't %s temporary file %s: %s",
- "create", tf->tffn, cstrerror(errno));
- }
- /* extract shf from temporary file, unlink and free it */
- shf = tf->shf;
- unlink(tf->tffn);
- afree(tf, ATEMP);
- /* save stdout and let it point to the tempfile */
- ofd1 = savefd(1);
- ksh_dup2(shf_fileno(shf), 1, false);
- /*
- * run tree, with output thrown into the tempfile,
- * in a new function block
- */
- valsub(t, NULL);
- subst_exstat = exstat & 0xFF;
- /* rewind the tempfile and restore regular stdout */
- lseek(shf_fileno(shf), (off_t)0, SEEK_SET);
- restfd(1, ofd1);
- } else if (fn == VALSUB) {
- xp->str = valsub(t, ATEMP);
- subst_exstat = exstat & 0xFF;
- return (XSUB);
- } else {
- int ofd1, pv[2];
-
- openpipe(pv);
- shf = shf_fdopen(pv[0], SHF_RD, NULL);
- ofd1 = savefd(1);
- if (pv[1] != 1) {
- ksh_dup2(pv[1], 1, false);
- close(pv[1]);
- }
- execute(t, XXCOM | XPIPEO | XFORK, NULL);
- restfd(1, ofd1);
- startlast();
- /* waitlast() */
- xp->split = true;
- }
-
- xp->u.shf = shf;
- return (XCOM);
-}
-
-/*
- * perform #pattern and %pattern substitution in ${}
- */
-static char *
-trimsub(char *str, char *pat, int how)
-{
- char *end = strnul(str);
- char *p, c;
-
- switch (how & 0xFF) {
- case '#':
- /* shortest match at beginning */
- for (p = str; p <= end; p += utf_ptradj(p)) {
- c = *p; *p = '\0';
- if (gmatchx(str, pat, false)) {
- *p = c;
- return (p);
- }
- *p = c;
- }
- break;
- case '#'|0x80:
- /* longest match at beginning */
- for (p = end; p >= str; p--) {
- c = *p; *p = '\0';
- if (gmatchx(str, pat, false)) {
- *p = c;
- return (p);
- }
- *p = c;
- }
- break;
- case '%':
- /* shortest match at end */
- p = end;
- while (p >= str) {
- if (gmatchx(p, pat, false))
- goto trimsub_match;
- if (UTFMODE) {
- char *op = p;
- while ((p-- > str) && ((*p & 0xC0) == 0x80))
- ;
- if ((p < str) || (p + utf_ptradj(p) != op))
- p = op - 1;
- } else
- --p;
- }
- break;
- case '%'|0x80:
- /* longest match at end */
- for (p = str; p <= end; p++)
- if (gmatchx(p, pat, false)) {
- trimsub_match:
- strndupx(end, str, p - str, ATEMP);
- return (end);
- }
- break;
- }
-
- /* no match, return string */
- return (str);
-}
-
-/*
- * glob
- * Name derived from V6's /etc/glob, the program that expanded filenames.
- */
-
-/* XXX cp not const 'cause slashes are temporarily replaced with NULs... */
-static void
-glob(char *cp, XPtrV *wp, bool markdirs)
-{
- int oldsize = XPsize(*wp);
-
- if (glob_str(cp, wp, markdirs) == 0)
- XPput(*wp, debunk(cp, cp, strlen(cp) + 1));
- else
- qsort(XPptrv(*wp) + oldsize, XPsize(*wp) - oldsize,
- sizeof(void *), xstrcmp);
-}
-
-#define GF_NONE 0
-#define GF_EXCHECK BIT(0) /* do existence check on file */
-#define GF_GLOBBED BIT(1) /* some globbing has been done */
-#define GF_MARKDIR BIT(2) /* add trailing / to directories */
-
-/*
- * Apply file globbing to cp and store the matching files in wp. Returns
- * the number of matches found.
- */
-int
-glob_str(char *cp, XPtrV *wp, bool markdirs)
-{
- int oldsize = XPsize(*wp);
- XString xs;
- char *xp;
-
- Xinit(xs, xp, 256, ATEMP);
- globit(&xs, &xp, cp, wp, markdirs ? GF_MARKDIR : GF_NONE);
- Xfree(xs, xp);
-
- return (XPsize(*wp) - oldsize);
-}
-
-static void
-globit(XString *xs, /* dest string */
- char **xpp, /* ptr to dest end */
- char *sp, /* source path */
- XPtrV *wp, /* output list */
- int check) /* GF_* flags */
-{
- char *np; /* next source component */
- char *xp = *xpp;
- char *se;
- char odirsep;
-
- /* This to allow long expansions to be interrupted */
- intrcheck();
-
- if (sp == NULL) {
- /* end of source path */
- /*
- * We only need to check if the file exists if a pattern
- * is followed by a non-pattern (eg, foo*x/bar; no check
- * is needed for foo* since the match must exist) or if
- * any patterns were expanded and the markdirs option is set.
- * Symlinks make things a bit tricky...
- */
- if ((check & GF_EXCHECK) ||
- ((check & GF_MARKDIR) && (check & GF_GLOBBED))) {
-#define stat_check() (stat_done ? stat_done : (stat_done = \
- stat(Xstring(*xs, xp), &statb) < 0 ? -1 : 1))
- struct stat lstatb, statb;
- /* -1: failed, 1 ok, 0 not yet done */
- int stat_done = 0;
-
- if (mksh_lstat(Xstring(*xs, xp), &lstatb) < 0)
- return;
- /*
- * special case for systems which strip trailing
- * slashes from regular files (eg, /etc/passwd/).
- * SunOS 4.1.3 does this...
- */
- if ((check & GF_EXCHECK) && xp > Xstring(*xs, xp) &&
- xp[-1] == '/' && !S_ISDIR(lstatb.st_mode) &&
- (!S_ISLNK(lstatb.st_mode) ||
- stat_check() < 0 || !S_ISDIR(statb.st_mode)))
- return;
- /*
- * Possibly tack on a trailing / if there isn't already
- * one and if the file is a directory or a symlink to a
- * directory
- */
- if (((check & GF_MARKDIR) && (check & GF_GLOBBED)) &&
- xp > Xstring(*xs, xp) && xp[-1] != '/' &&
- (S_ISDIR(lstatb.st_mode) ||
- (S_ISLNK(lstatb.st_mode) && stat_check() > 0 &&
- S_ISDIR(statb.st_mode)))) {
- *xp++ = '/';
- *xp = '\0';
- }
- }
- strndupx(np, Xstring(*xs, xp), Xlength(*xs, xp), ATEMP);
- XPput(*wp, np);
- return;
- }
-
- if (xp > Xstring(*xs, xp))
- *xp++ = '/';
- while (*sp == '/') {
- Xcheck(*xs, xp);
- *xp++ = *sp++;
- }
- np = strchr(sp, '/');
- if (np != NULL) {
- se = np;
- /* don't assume '/', can be multiple kinds */
- odirsep = *np;
- *np++ = '\0';
- } else {
- odirsep = '\0'; /* keep gcc quiet */
- se = sp + strlen(sp);
- }
-
-
- /*
- * Check if sp needs globbing - done to avoid pattern checks for strings
- * containing MAGIC characters, open [s without the matching close ],
- * etc. (otherwise opendir() will be called which may fail because the
- * directory isn't readable - if no globbing is needed, only execute
- * permission should be required (as per POSIX)).
- */
- if (!has_globbing(sp, se)) {
- XcheckN(*xs, xp, se - sp + 1);
- debunk(xp, sp, Xnleft(*xs, xp));
- xp += strlen(xp);
- *xpp = xp;
- globit(xs, xpp, np, wp, check);
- } else {
- DIR *dirp;
- struct dirent *d;
- char *name;
- size_t len, prefix_len;
-
- /* xp = *xpp; copy_non_glob() may have re-alloc'd xs */
- *xp = '\0';
- prefix_len = Xlength(*xs, xp);
- dirp = opendir(prefix_len ? Xstring(*xs, xp) : ".");
- if (dirp == NULL)
- goto Nodir;
- while ((d = readdir(dirp)) != NULL) {
- name = d->d_name;
- if (name[0] == '.' &&
- (name[1] == 0 || (name[1] == '.' && name[2] == 0)))
- /* always ignore . and .. */
- continue;
- if ((*name == '.' && *sp != '.') ||
- !gmatchx(name, sp, true))
- continue;
-
- len = strlen(d->d_name) + 1;
- XcheckN(*xs, xp, len);
- memcpy(xp, name, len);
- *xpp = xp + len - 1;
- globit(xs, xpp, np, wp,
- (check & GF_MARKDIR) | GF_GLOBBED
- | (np ? GF_EXCHECK : GF_NONE));
- xp = Xstring(*xs, xp) + prefix_len;
- }
- closedir(dirp);
- Nodir:
- ;
- }
-
- if (np != NULL)
- *--np = odirsep;
-}
-
-/* remove MAGIC from string */
-char *
-debunk(char *dp, const char *sp, size_t dlen)
-{
- char *d;
- const char *s;
-
- if ((s = cstrchr(sp, MAGIC))) {
- if (s - sp >= (ssize_t)dlen)
- return (dp);
- memmove(dp, sp, s - sp);
- for (d = dp + (s - sp); *s && (d - dp < (ssize_t)dlen); s++)
- if (!ISMAGIC(*s) || !(*++s & 0x80) ||
- !vstrchr("*+?@! ", *s & 0x7f))
- *d++ = *s;
- else {
- /* extended pattern operators: *+?@! */
- if ((*s & 0x7f) != ' ')
- *d++ = *s & 0x7f;
- if (d - dp < (ssize_t)dlen)
- *d++ = '(';
- }
- *d = '\0';
- } else if (dp != sp)
- strlcpy(dp, sp, dlen);
- return (dp);
-}
-
-/*
- * Check if p is an unquoted name, possibly followed by a / or :. If so
- * puts the expanded version in *dcp,dp and returns a pointer in p just
- * past the name, otherwise returns 0.
- */
-static const char *
-maybe_expand_tilde(const char *p, XString *dsp, char **dpp, int isassign)
-{
- XString ts;
- char *dp = *dpp;
- char *tp;
- const char *r;
-
- Xinit(ts, tp, 16, ATEMP);
- /* : only for DOASNTILDE form */
- while (p[0] == CHAR && p[1] != '/' && (!isassign || p[1] != ':'))
- {
- Xcheck(ts, tp);
- *tp++ = p[1];
- p += 2;
- }
- *tp = '\0';
- r = (p[0] == EOS || p[0] == CHAR || p[0] == CSUBST) ?
- tilde(Xstring(ts, tp)) : NULL;
- Xfree(ts, tp);
- if (r) {
- while (*r) {
- Xcheck(*dsp, dp);
- if (ISMAGIC(*r))
- *dp++ = MAGIC;
- *dp++ = *r++;
- }
- *dpp = dp;
- r = p;
- }
- return (r);
-}
-
-/*
- * tilde expansion
- *
- * based on a version by Arnold Robbins
- */
-
-char *
-tilde(char *cp)
-{
- char *dp = null;
-
- if (cp[0] == '\0')
- dp = str_val(global("HOME"));
- else if (cp[0] == '+' && cp[1] == '\0')
- dp = str_val(global("PWD"));
- else if (cp[0] == '-' && cp[1] == '\0')
- dp = str_val(global("OLDPWD"));
-#ifndef MKSH_NOPWNAM
- else
- dp = homedir(cp);
-#endif
- /* If HOME, PWD or OLDPWD are not set, don't expand ~ */
- return (dp == null ? NULL : dp);
-}
-
-#ifndef MKSH_NOPWNAM
-/*
- * map userid to user's home directory.
- * note that 4.3's getpw adds more than 6K to the shell,
- * and the YP version probably adds much more.
- * we might consider our own version of getpwnam() to keep the size down.
- */
-static char *
-homedir(char *name)
-{
- struct tbl *ap;
-
- ap = ktenter(&homedirs, name, hash(name));
- if (!(ap->flag & ISSET)) {
- struct passwd *pw;
-
- pw = getpwnam(name);
- if (pw == NULL)
- return (NULL);
- strdupx(ap->val.s, pw->pw_dir, APERM);
- ap->flag |= DEFINED|ISSET|ALLOC;
- }
- return (ap->val.s);
-}
-#endif
-
-static void
-alt_expand(XPtrV *wp, char *start, char *exp_start, char *end, int fdo)
-{
- int count = 0;
- char *brace_start, *brace_end, *comma = NULL;
- char *field_start;
- char *p;
-
- /* search for open brace */
- for (p = exp_start; (p = strchr(p, MAGIC)) && p[1] != '{' /*}*/; p += 2)
- ;
- brace_start = p;
-
- /* find matching close brace, if any */
- if (p) {
- comma = NULL;
- count = 1;
- for (p += 2; *p && count; p++) {
- if (ISMAGIC(*p)) {
- if (*++p == '{' /*}*/)
- count++;
- else if (*p == /*{*/ '}')
- --count;
- else if (*p == ',' && count == 1)
- comma = p;
- }
- }
- }
- /* no valid expansions... */
- if (!p || count != 0) {
- /*
- * Note that given a{{b,c} we do not expand anything (this is
- * what AT&T ksh does. This may be changed to do the {b,c}
- * expansion. }
- */
- if (fdo & DOGLOB)
- glob(start, wp, tobool(fdo & DOMARKDIRS));
- else
- XPput(*wp, debunk(start, start, end - start));
- return;
- }
- brace_end = p;
- if (!comma) {
- alt_expand(wp, start, brace_end, end, fdo);
- return;
- }
-
- /* expand expression */
- field_start = brace_start + 2;
- count = 1;
- for (p = brace_start + 2; p != brace_end; p++) {
- if (ISMAGIC(*p)) {
- if (*++p == '{' /*}*/)
- count++;
- else if ((*p == /*{*/ '}' && --count == 0) ||
- (*p == ',' && count == 1)) {
- char *news;
- int l1, l2, l3;
-
- /*
- * addition safe since these operate on
- * one string (separate substrings)
- */
- l1 = brace_start - start;
- l2 = (p - 1) - field_start;
- l3 = end - brace_end;
- news = alloc(l1 + l2 + l3 + 1, ATEMP);
- memcpy(news, start, l1);
- memcpy(news + l1, field_start, l2);
- memcpy(news + l1 + l2, brace_end, l3);
- news[l1 + l2 + l3] = '\0';
- alt_expand(wp, news, news + l1,
- news + l1 + l2 + l3, fdo);
- field_start = p + 1;
- }
- }
- }
- return;
-}
-
-/* helper function due to setjmp/longjmp woes */
-static char *
-valsub(struct op *t, Area *ap)
-{
- char * volatile cp = NULL;
- struct tbl * volatile vp = NULL;
-
- newenv(E_FUNC);
- newblock();
- if (ap)
- vp = local("REPLY", false);
- if (!kshsetjmp(e->jbuf))
- execute(t, XXCOM | XERROK, NULL);
- if (vp)
- strdupx(cp, str_val(vp), ap);
- quitenv(NULL);
-
- return (cp);
-}
Copied: vendor/MirOS/mksh/R50/eval.c (from rev 6707, vendor/MirOS/mksh/dist/eval.c)
===================================================================
--- vendor/MirOS/mksh/R50/eval.c (rev 0)
+++ vendor/MirOS/mksh/R50/eval.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1833 @@
+/* $OpenBSD: eval.c,v 1.40 2013/09/14 20:09:30 millert Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+
+__RCSID("$MirOS: src/bin/mksh/eval.c,v 1.150 2014/06/09 11:16:07 tg Exp $");
+
+/*
+ * string expansion
+ *
+ * first pass: quoting, IFS separation, ~, ${}, $() and $(()) substitution.
+ * second pass: alternation ({,}), filename expansion (*?[]).
+ */
+
+/* expansion generator state */
+typedef struct {
+ /* not including an "int type;" member, see expand() */
+ /* string */
+ const char *str;
+ /* source */
+ union {
+ /* string[] */
+ const char **strv;
+ /* file */
+ struct shf *shf;
+ } u;
+ /* variable in ${var...} */
+ struct tbl *var;
+ /* split "$@" / call waitlast in $() */
+ bool split;
+} Expand;
+
+#define XBASE 0 /* scanning original */
+#define XSUB 1 /* expanding ${} string */
+#define XARGSEP 2 /* ifs0 between "$*" */
+#define XARG 3 /* expanding $*, $@ */
+#define XCOM 4 /* expanding $() */
+#define XNULLSUB 5 /* "$@" when $# is 0 (don't generate word) */
+#define XSUBMID 6 /* middle of expanding ${} */
+
+/* States used for field splitting */
+#define IFS_WORD 0 /* word has chars (or quotes) */
+#define IFS_WS 1 /* have seen IFS white-space */
+#define IFS_NWS 2 /* have seen IFS non-white-space */
+
+static int varsub(Expand *, const char *, const char *, int *, int *);
+static int comsub(Expand *, const char *, int);
+static char *valsub(struct op *, Area *);
+static char *trimsub(char *, char *, int);
+static void glob(char *, XPtrV *, bool);
+static void globit(XString *, char **, char *, XPtrV *, int);
+static const char *maybe_expand_tilde(const char *, XString *, char **, int);
+#ifndef MKSH_NOPWNAM
+static char *homedir(char *);
+#endif
+static void alt_expand(XPtrV *, char *, char *, char *, int);
+static int utflen(const char *) MKSH_A_PURE;
+static void utfincptr(const char *, mksh_ari_t *);
+
+/* UTFMODE functions */
+static int
+utflen(const char *s)
+{
+ size_t n;
+
+ if (UTFMODE) {
+ n = 0;
+ while (*s) {
+ s += utf_ptradj(s);
+ ++n;
+ }
+ } else
+ n = strlen(s);
+
+ if (n > 2147483647)
+ n = 2147483647;
+ return ((int)n);
+}
+
+static void
+utfincptr(const char *s, mksh_ari_t *lp)
+{
+ const char *cp = s;
+
+ while ((*lp)--)
+ cp += utf_ptradj(cp);
+ *lp = cp - s;
+}
+
+/* compile and expand word */
+char *
+substitute(const char *cp, int f)
+{
+ struct source *s, *sold;
+
+ sold = source;
+ s = pushs(SWSTR, ATEMP);
+ s->start = s->str = cp;
+ source = s;
+ if (yylex(ONEWORD) != LWORD)
+ internal_errorf("bad substitution");
+ source = sold;
+ afree(s, ATEMP);
+ return (evalstr(yylval.cp, f));
+}
+
+/*
+ * expand arg-list
+ */
+char **
+eval(const char **ap, int f)
+{
+ XPtrV w;
+
+ if (*ap == NULL) {
+ union mksh_ccphack vap;
+
+ vap.ro = ap;
+ return (vap.rw);
+ }
+ XPinit(w, 32);
+ /* space for shell name */
+ XPput(w, NULL);
+ while (*ap != NULL)
+ expand(*ap++, &w, f);
+ XPput(w, NULL);
+ return ((char **)XPclose(w) + 1);
+}
+
+/*
+ * expand string
+ */
+char *
+evalstr(const char *cp, int f)
+{
+ XPtrV w;
+ char *dp = null;
+
+ XPinit(w, 1);
+ expand(cp, &w, f);
+ if (XPsize(w))
+ dp = *XPptrv(w);
+ XPfree(w);
+ return (dp);
+}
+
+/*
+ * expand string - return only one component
+ * used from iosetup to expand redirection files
+ */
+char *
+evalonestr(const char *cp, int f)
+{
+ XPtrV w;
+ char *rv;
+
+ XPinit(w, 1);
+ expand(cp, &w, f);
+ switch (XPsize(w)) {
+ case 0:
+ rv = null;
+ break;
+ case 1:
+ rv = (char *) *XPptrv(w);
+ break;
+ default:
+ rv = evalstr(cp, f&~DOGLOB);
+ break;
+ }
+ XPfree(w);
+ return (rv);
+}
+
+/* for nested substitution: ${var:=$var2} */
+typedef struct SubType {
+ struct tbl *var; /* variable for ${var..} */
+ struct SubType *prev; /* old type */
+ struct SubType *next; /* poped type (to avoid re-allocating) */
+ size_t base; /* begin position of expanded word */
+ short stype; /* [=+-?%#] action after expanded word */
+ short f; /* saved value of f (DOPAT, etc) */
+ uint8_t quotep; /* saved value of quote (for ${..[%#]..}) */
+ uint8_t quotew; /* saved value of quote (for ${..[+-=]..}) */
+} SubType;
+
+void
+expand(
+ /* input word */
+ const char *ccp,
+ /* output words */
+ XPtrV *wp,
+ /* DO* flags */
+ int f)
+{
+ int c = 0;
+ /* expansion type */
+ int type;
+ /* quoted */
+ int quote = 0;
+ /* destination string and live pointer */
+ XString ds;
+ char *dp;
+ /* source */
+ const char *sp;
+ /* second pass flags */
+ int fdo;
+ /* have word */
+ int word;
+ /* field splitting of parameter/command substitution */
+ int doblank;
+ /* expansion variables */
+ Expand x = {
+ NULL, { NULL }, NULL, 0
+ };
+ SubType st_head, *st;
+ /* record number of trailing newlines in COMSUB */
+ int newlines = 0;
+ bool saw_eq, make_magic;
+ int tilde_ok;
+ size_t len;
+ char *cp;
+
+ if (ccp == NULL)
+ internal_errorf("expand(NULL)");
+ /* for alias, readonly, set, typeset commands */
+ if ((f & DOVACHECK) && is_wdvarassign(ccp)) {
+ f &= ~(DOVACHECK|DOBLANK|DOGLOB|DOTILDE);
+ f |= DOASNTILDE;
+ }
+ if (Flag(FNOGLOB))
+ f &= ~DOGLOB;
+ if (Flag(FMARKDIRS))
+ f |= DOMARKDIRS;
+ if (Flag(FBRACEEXPAND) && (f & DOGLOB))
+ f |= DOBRACE;
+
+ /* init destination string */
+ Xinit(ds, dp, 128, ATEMP);
+ type = XBASE;
+ sp = ccp;
+ fdo = 0;
+ saw_eq = false;
+ /* must be 1/0 */
+ tilde_ok = (f & (DOTILDE|DOASNTILDE)) ? 1 : 0;
+ doblank = 0;
+ make_magic = false;
+ word = (f&DOBLANK) ? IFS_WS : IFS_WORD;
+ /* clang doesn't know OSUBST comes before CSUBST */
+ memset(&st_head, 0, sizeof(st_head));
+ st = &st_head;
+
+ while (/* CONSTCOND */ 1) {
+ Xcheck(ds, dp);
+
+ switch (type) {
+ case XBASE:
+ /* original prefixed string */
+ c = *sp++;
+ switch (c) {
+ case EOS:
+ c = 0;
+ break;
+ case CHAR:
+ c = *sp++;
+ break;
+ case QCHAR:
+ /* temporary quote */
+ quote |= 2;
+ c = *sp++;
+ break;
+ case OQUOTE:
+ word = IFS_WORD;
+ tilde_ok = 0;
+ quote = 1;
+ continue;
+ case CQUOTE:
+ quote = st->quotew;
+ continue;
+ case COMSUB:
+ case FUNSUB:
+ case VALSUB:
+ tilde_ok = 0;
+ if (f & DONTRUNCOMMAND) {
+ word = IFS_WORD;
+ *dp++ = '$';
+ *dp++ = c == COMSUB ? '(' : '{';
+ if (c != COMSUB)
+ *dp++ = c == FUNSUB ? ' ' : '|';
+ while (*sp != '\0') {
+ Xcheck(ds, dp);
+ *dp++ = *sp++;
+ }
+ if (c != COMSUB) {
+ *dp++ = ';';
+ *dp++ = '}';
+ } else
+ *dp++ = ')';
+ } else {
+ type = comsub(&x, sp, c);
+ if (type != XBASE && (f & DOBLANK))
+ doblank++;
+ sp = strnul(sp) + 1;
+ newlines = 0;
+ }
+ continue;
+ case EXPRSUB:
+ tilde_ok = 0;
+ if (f & DONTRUNCOMMAND) {
+ word = IFS_WORD;
+ *dp++ = '$'; *dp++ = '('; *dp++ = '(';
+ while (*sp != '\0') {
+ Xcheck(ds, dp);
+ *dp++ = *sp++;
+ }
+ *dp++ = ')'; *dp++ = ')';
+ } else {
+ struct tbl v;
+
+ v.flag = DEFINED|ISSET|INTEGER;
+ /* not default */
+ v.type = 10;
+ v.name[0] = '\0';
+ v_evaluate(&v, substitute(sp, 0),
+ KSH_UNWIND_ERROR, true);
+ sp = strnul(sp) + 1;
+ x.str = str_val(&v);
+ type = XSUB;
+ if (f & DOBLANK)
+ doblank++;
+ }
+ continue;
+ case OSUBST: {
+ /* ${{#}var{:}[=+-?#%]word} */
+ /*-
+ * format is:
+ * OSUBST [{x] plain-variable-part \0
+ * compiled-word-part CSUBST [}x]
+ * This is where all syntax checking gets done...
+ */
+ /* skip the { or x (}) */
+ const char *varname = ++sp;
+ int stype;
+ int slen = 0;
+
+ /* skip variable */
+ sp = cstrchr(sp, '\0') + 1;
+ type = varsub(&x, varname, sp, &stype, &slen);
+ if (type < 0) {
+ char *beg, *end, *str;
+ unwind_substsyn:
+ /* restore sp */
+ sp = varname - 2;
+ end = (beg = wdcopy(sp, ATEMP)) +
+ (wdscan(sp, CSUBST) - sp);
+ /* ({) the } or x is already skipped */
+ if (end < wdscan(beg, EOS))
+ *end = EOS;
+ str = snptreef(NULL, 64, "%S", beg);
+ afree(beg, ATEMP);
+ errorf("%s: %s", str, "bad substitution");
+ }
+ if (f & DOBLANK)
+ doblank++;
+ tilde_ok = 0;
+ if (type == XBASE) {
+ /* expand? */
+ if (!st->next) {
+ SubType *newst;
+
+ newst = alloc(sizeof(SubType), ATEMP);
+ newst->next = NULL;
+ newst->prev = st;
+ st->next = newst;
+ }
+ st = st->next;
+ st->stype = stype;
+ st->base = Xsavepos(ds, dp);
+ st->f = f;
+ if (x.var == &vtemp) {
+ st->var = tempvar();
+ st->var->flag &= ~INTEGER;
+ /* can't fail here */
+ setstr(st->var,
+ str_val(x.var),
+ KSH_RETURN_ERROR | 0x4);
+ } else
+ st->var = x.var;
+
+ st->quotew = st->quotep = quote;
+ /* skip qualifier(s) */
+ if (stype)
+ sp += slen;
+ switch (stype & 0x17F) {
+ case 0x100 | '#':
+ x.str = shf_smprintf("%08X",
+ (unsigned int)hash(str_val(st->var)));
+ break;
+ case 0x100 | 'Q': {
+ struct shf shf;
+
+ shf_sopen(NULL, 0, SHF_WR|SHF_DYNAMIC, &shf);
+ print_value_quoted(&shf, str_val(st->var));
+ x.str = shf_sclose(&shf);
+ break;
+ }
+ case '0': {
+ char *beg, *mid, *end, *stg;
+ mksh_ari_t from = 0, num = -1, flen, finc = 0;
+
+ beg = wdcopy(sp, ATEMP);
+ mid = beg + (wdscan(sp, ADELIM) - sp);
+ stg = beg + (wdscan(sp, CSUBST) - sp);
+ if (mid >= stg)
+ goto unwind_substsyn;
+ mid[-2] = EOS;
+ if (mid[-1] == /*{*/'}') {
+ sp += mid - beg - 1;
+ end = NULL;
+ } else {
+ end = mid +
+ (wdscan(mid, ADELIM) - mid);
+ if (end >= stg ||
+ /* more than max delimiters */
+ end[-1] != /*{*/ '}')
+ goto unwind_substsyn;
+ end[-2] = EOS;
+ sp += end - beg - 1;
+ }
+ evaluate(substitute(stg = wdstrip(beg, 0), 0),
+ &from, KSH_UNWIND_ERROR, true);
+ afree(stg, ATEMP);
+ if (end) {
+ evaluate(substitute(stg = wdstrip(mid, 0), 0),
+ &num, KSH_UNWIND_ERROR, true);
+ afree(stg, ATEMP);
+ }
+ afree(beg, ATEMP);
+ beg = str_val(st->var);
+ flen = utflen(beg);
+ if (from < 0) {
+ if (-from < flen)
+ finc = flen + from;
+ } else
+ finc = from < flen ? from : flen;
+ if (UTFMODE)
+ utfincptr(beg, &finc);
+ beg += finc;
+ flen = utflen(beg);
+ if (num < 0 || num > flen)
+ num = flen;
+ if (UTFMODE)
+ utfincptr(beg, &num);
+ strndupx(x.str, beg, num, ATEMP);
+ goto do_CSUBST;
+ }
+ case '/': {
+ char *s, *p, *d, *sbeg, *end;
+ char *pat, *rrep;
+ char *tpat0, *tpat1, *tpat2;
+
+ s = wdcopy(sp, ATEMP);
+ p = s + (wdscan(sp, ADELIM) - sp);
+ d = s + (wdscan(sp, CSUBST) - sp);
+ if (p >= d)
+ goto unwind_substsyn;
+ p[-2] = EOS;
+ if (p[-1] == /*{*/'}')
+ d = NULL;
+ else
+ d[-2] = EOS;
+ sp += (d ? d : p) - s - 1;
+ tpat0 = wdstrip(s,
+ WDS_KEEPQ | WDS_MAGIC);
+ pat = substitute(tpat0, 0);
+ if (d) {
+ d = wdstrip(p, WDS_KEEPQ);
+ rrep = substitute(d, 0);
+ afree(d, ATEMP);
+ } else
+ rrep = null;
+ afree(s, ATEMP);
+ s = d = pat;
+ while (*s)
+ if (*s != '\\' ||
+ s[1] == '%' ||
+ s[1] == '#' ||
+ s[1] == '\0' ||
+ /* XXX really? */ s[1] == '\\' ||
+ s[1] == '/')
+ *d++ = *s++;
+ else
+ s++;
+ *d = '\0';
+ afree(tpat0, ATEMP);
+
+ /* check for special cases */
+ d = str_val(st->var);
+ mkssert(d != NULL);
+ switch (*pat) {
+ case '#':
+ /* anchor at begin */
+ tpat0 = pat + 1;
+ tpat1 = rrep;
+ tpat2 = d;
+ break;
+ case '%':
+ /* anchor at end */
+ tpat0 = pat + 1;
+ tpat1 = d;
+ tpat2 = rrep;
+ break;
+ case '\0':
+ /* empty pattern */
+ goto no_repl;
+ default:
+ tpat0 = pat;
+ /* silence gcc */
+ tpat1 = tpat2 = NULL;
+ }
+ if (gmatchx(null, tpat0, false)) {
+ /*
+ * pattern matches
+ * the empty string
+ */
+ if (tpat0 == pat)
+ goto no_repl;
+ /* but is anchored */
+ s = shf_smprintf("%s%s",
+ tpat1, tpat2);
+ goto do_repl;
+ }
+
+ /* prepare string on which to work */
+ strdupx(s, d, ATEMP);
+ sbeg = s;
+
+ /* first see if we have any match at all */
+ tpat0 = pat;
+ if (*pat == '#') {
+ /* anchor at the beginning */
+ tpat1 = shf_smprintf("%s%c*", ++tpat0, MAGIC);
+ tpat2 = tpat1;
+ } else if (*pat == '%') {
+ /* anchor at the end */
+ tpat1 = shf_smprintf("%c*%s", MAGIC, ++tpat0);
+ tpat2 = tpat0;
+ } else {
+ /* float */
+ tpat1 = shf_smprintf("%c*%s%c*", MAGIC, pat, MAGIC);
+ tpat2 = tpat1 + 2;
+ }
+ again_repl:
+ /*
+ * this would not be necessary if gmatchx would return
+ * the start and end values of a match found, like re*
+ */
+ if (!gmatchx(sbeg, tpat1, false))
+ goto end_repl;
+ end = strnul(s);
+ /* now anchor the beginning of the match */
+ if (*pat != '#')
+ while (sbeg <= end) {
+ if (gmatchx(sbeg, tpat2, false))
+ break;
+ else
+ sbeg++;
+ }
+ /* now anchor the end of the match */
+ p = end;
+ if (*pat != '%')
+ while (p >= sbeg) {
+ bool gotmatch;
+
+ c = *p;
+ *p = '\0';
+ gotmatch = tobool(gmatchx(sbeg, tpat0, false));
+ *p = c;
+ if (gotmatch)
+ break;
+ p--;
+ }
+ strndupx(end, s, sbeg - s, ATEMP);
+ d = shf_smprintf("%s%s%s", end, rrep, p);
+ afree(end, ATEMP);
+ sbeg = d + (sbeg - s) + strlen(rrep);
+ afree(s, ATEMP);
+ s = d;
+ if (stype & 0x80)
+ goto again_repl;
+ end_repl:
+ afree(tpat1, ATEMP);
+ do_repl:
+ x.str = s;
+ no_repl:
+ afree(pat, ATEMP);
+ if (rrep != null)
+ afree(rrep, ATEMP);
+ goto do_CSUBST;
+ }
+ case '#':
+ case '%':
+ /* ! DOBLANK,DOBRACE,DOTILDE */
+ f = (f & DONTRUNCOMMAND) |
+ DOPAT | DOTEMP;
+ st->quotew = quote = 0;
+ /*
+ * Prepend open pattern (so |
+ * in a trim will work as
+ * expected)
+ */
+ if (!Flag(FSH)) {
+ *dp++ = MAGIC;
+ *dp++ = '@' | 0x80;
+ }
+ break;
+ case '=':
+ /*
+ * Enabling tilde expansion
+ * after :s here is
+ * non-standard ksh, but is
+ * consistent with rules for
+ * other assignments. Not
+ * sure what POSIX thinks of
+ * this.
+ * Not doing tilde expansion
+ * for integer variables is a
+ * non-POSIX thing - makes
+ * sense though, since ~ is
+ * a arithmetic operator.
+ */
+ if (!(x.var->flag & INTEGER))
+ f |= DOASNTILDE|DOTILDE;
+ f |= DOTEMP;
+ /*
+ * These will be done after the
+ * value has been assigned.
+ */
+ f &= ~(DOBLANK|DOGLOB|DOBRACE);
+ tilde_ok = 1;
+ break;
+ case '?':
+ f &= ~DOBLANK;
+ f |= DOTEMP;
+ /* FALLTHROUGH */
+ default:
+ /* Enable tilde expansion */
+ tilde_ok = 1;
+ f |= DOTILDE;
+ }
+ } else
+ /* skip word */
+ sp += wdscan(sp, CSUBST) - sp;
+ continue;
+ }
+ case CSUBST:
+ /* only get here if expanding word */
+ do_CSUBST:
+ /* ({) skip the } or x */
+ sp++;
+ /* in case of ${unset:-} */
+ tilde_ok = 0;
+ *dp = '\0';
+ quote = st->quotep;
+ f = st->f;
+ if (f & DOBLANK)
+ doblank--;
+ switch (st->stype & 0x17F) {
+ case '#':
+ case '%':
+ if (!Flag(FSH)) {
+ /* Append end-pattern */
+ *dp++ = MAGIC;
+ *dp++ = ')';
+ }
+ *dp = '\0';
+ dp = Xrestpos(ds, dp, st->base);
+ /*
+ * Must use st->var since calling
+ * global would break things
+ * like x[i+=1].
+ */
+ x.str = trimsub(str_val(st->var),
+ dp, st->stype);
+ if (x.str[0] != '\0') {
+ word = IFS_WS;
+ type = XSUB;
+ } else
+ type = quote ? XSUB : XNULLSUB;
+ if (f & DOBLANK)
+ doblank++;
+ st = st->prev;
+ continue;
+ case '=':
+ /*
+ * Restore our position and substitute
+ * the value of st->var (may not be
+ * the assigned value in the presence
+ * of integer/right-adj/etc attributes).
+ */
+ dp = Xrestpos(ds, dp, st->base);
+ /*
+ * Must use st->var since calling
+ * global would cause with things
+ * like x[i+=1] to be evaluated twice.
+ */
+ /*
+ * Note: not exported by FEXPORT
+ * in AT&T ksh.
+ */
+ /*
+ * XXX POSIX says readonly is only
+ * fatal for special builtins (setstr
+ * does readonly check).
+ */
+ len = strlen(dp) + 1;
+ setstr(st->var,
+ debunk(alloc(len, ATEMP),
+ dp, len), KSH_UNWIND_ERROR);
+ x.str = str_val(st->var);
+ type = XSUB;
+ if (f & DOBLANK)
+ doblank++;
+ st = st->prev;
+ continue;
+ case '?': {
+ char *s = Xrestpos(ds, dp, st->base);
+
+ errorf("%s: %s", st->var->name,
+ dp == s ?
+ "parameter null or not set" :
+ (debunk(s, s, strlen(s) + 1), s));
+ }
+ case '0':
+ case '/':
+ case 0x100 | '#':
+ case 0x100 | 'Q':
+ dp = Xrestpos(ds, dp, st->base);
+ type = XSUB;
+ if (f & DOBLANK)
+ doblank++;
+ st = st->prev;
+ continue;
+ }
+ st = st->prev;
+ type = XBASE;
+ continue;
+
+ case OPAT:
+ /* open pattern: *(foo|bar) */
+ /* Next char is the type of pattern */
+ make_magic = true;
+ c = *sp++ | 0x80;
+ break;
+
+ case SPAT:
+ /* pattern separator (|) */
+ make_magic = true;
+ c = '|';
+ break;
+
+ case CPAT:
+ /* close pattern */
+ make_magic = true;
+ c = /*(*/ ')';
+ break;
+ }
+ break;
+
+ case XNULLSUB:
+ /*
+ * Special case for "$@" (and "${foo[@]}") - no
+ * word is generated if $# is 0 (unless there is
+ * other stuff inside the quotes).
+ */
+ type = XBASE;
+ if (f & DOBLANK) {
+ doblank--;
+ /*
+ * XXX not really correct:
+ * x=; "$x$@"
+ * should generate a null argument and
+ * set A; "${@:+}"
+ * shouldn't.
+ */
+ if (dp == Xstring(ds, dp))
+ word = IFS_WS;
+ }
+ continue;
+
+ case XSUB:
+ case XSUBMID:
+ if ((c = *x.str++) == 0) {
+ type = XBASE;
+ if (f & DOBLANK)
+ doblank--;
+ continue;
+ }
+ break;
+
+ case XARGSEP:
+ type = XARG;
+ quote = 1;
+ /* FALLTHROUGH */
+ case XARG:
+ if ((c = *x.str++) == '\0') {
+ /*
+ * force null words to be created so
+ * set -- '' 2 ''; foo "$@" will do
+ * the right thing
+ */
+ if (quote && x.split)
+ word = IFS_WORD;
+ if ((x.str = *x.u.strv++) == NULL) {
+ type = XBASE;
+ if (f & DOBLANK)
+ doblank--;
+ continue;
+ }
+ c = ifs0;
+ if (c == 0) {
+ if (quote && !x.split)
+ continue;
+ /* this is so we don't terminate */
+ c = ' ';
+ /* now force-emit a word */
+ goto emit_word;
+ }
+ if (quote && x.split) {
+ /* terminate word for "$@" */
+ type = XARGSEP;
+ quote = 0;
+ }
+ }
+ break;
+
+ case XCOM:
+ if (x.u.shf == NULL) {
+ /* $(<...) failed */
+ subst_exstat = 1;
+ /* fake EOF */
+ c = EOF;
+ } else if (newlines) {
+ /* spit out saved NLs */
+ c = '\n';
+ --newlines;
+ } else {
+ while ((c = shf_getc(x.u.shf)) == 0 || c == '\n')
+ if (c == '\n')
+ /* save newlines */
+ newlines++;
+ if (newlines && c != EOF) {
+ shf_ungetc(c, x.u.shf);
+ c = '\n';
+ --newlines;
+ }
+ }
+ if (c == EOF) {
+ newlines = 0;
+ if (x.u.shf)
+ shf_close(x.u.shf);
+ if (x.split)
+ subst_exstat = waitlast();
+ type = XBASE;
+ if (f & DOBLANK)
+ doblank--;
+ continue;
+ }
+ break;
+ }
+
+ /* check for end of word or IFS separation */
+ if (c == 0 || (!quote && (f & DOBLANK) && doblank &&
+ !make_magic && ctype(c, C_IFS))) {
+ /*-
+ * How words are broken up:
+ * | value of c
+ * word | ws nws 0
+ * -----------------------------------
+ * IFS_WORD w/WS w/NWS w
+ * IFS_WS -/WS w/NWS -
+ * IFS_NWS -/NWS w/NWS w
+ * (w means generate a word)
+ * Note that IFS_NWS/0 generates a word (AT&T ksh
+ * doesn't do this, but POSIX does).
+ */
+ if (word == IFS_WORD ||
+ (!ctype(c, C_IFSWS) && c && word == IFS_NWS)) {
+ emit_word:
+ *dp++ = '\0';
+ cp = Xclose(ds, dp);
+ if (fdo & DOBRACE)
+ /* also does globbing */
+ alt_expand(wp, cp, cp,
+ cp + Xlength(ds, (dp - 1)),
+ fdo | (f & DOMARKDIRS));
+ else if (fdo & DOGLOB)
+ glob(cp, wp, tobool(f & DOMARKDIRS));
+ else if ((f & DOPAT) || !(fdo & DOMAGIC))
+ XPput(*wp, cp);
+ else
+ XPput(*wp, debunk(cp, cp,
+ strlen(cp) + 1));
+ fdo = 0;
+ saw_eq = false;
+ tilde_ok = (f & (DOTILDE|DOASNTILDE)) ? 1 : 0;
+ if (c == 0)
+ return;
+ Xinit(ds, dp, 128, ATEMP);
+ } else if (c == 0) {
+ return;
+ } else if (type == XSUB && ctype(c, C_IFS) &&
+ !ctype(c, C_IFSWS) && Xlength(ds, dp) == 0) {
+ *(cp = alloc(1, ATEMP)) = '\0';
+ XPput(*wp, cp);
+ type = XSUBMID;
+ }
+ if (word != IFS_NWS)
+ word = ctype(c, C_IFSWS) ? IFS_WS : IFS_NWS;
+ } else {
+ if (type == XSUB) {
+ if (word == IFS_NWS &&
+ Xlength(ds, dp) == 0) {
+ *(cp = alloc(1, ATEMP)) = '\0';
+ XPput(*wp, cp);
+ }
+ type = XSUBMID;
+ }
+
+ /* age tilde_ok info - ~ code tests second bit */
+ tilde_ok <<= 1;
+ /* mark any special second pass chars */
+ if (!quote)
+ switch (c) {
+ case '[':
+ case '!':
+ case '-':
+ case ']':
+ /*
+ * For character classes - doesn't hurt
+ * to have magic !,-,]s outside of
+ * [...] expressions.
+ */
+ if (f & (DOPAT | DOGLOB)) {
+ fdo |= DOMAGIC;
+ if (c == '[')
+ fdo |= f & DOGLOB;
+ *dp++ = MAGIC;
+ }
+ break;
+ case '*':
+ case '?':
+ if (f & (DOPAT | DOGLOB)) {
+ fdo |= DOMAGIC | (f & DOGLOB);
+ *dp++ = MAGIC;
+ }
+ break;
+ case '{':
+ case '}':
+ case ',':
+ if ((f & DOBRACE) && (c == '{' /*}*/ ||
+ (fdo & DOBRACE))) {
+ fdo |= DOBRACE|DOMAGIC;
+ *dp++ = MAGIC;
+ }
+ break;
+ case '=':
+ /* Note first unquoted = for ~ */
+ if (!(f & DOTEMP) && !saw_eq &&
+ (Flag(FBRACEEXPAND) ||
+ (f & DOASNTILDE))) {
+ saw_eq = true;
+ tilde_ok = 1;
+ }
+ break;
+ case ':':
+ /* : */
+ /* Note unquoted : for ~ */
+ if (!(f & DOTEMP) && (f & DOASNTILDE))
+ tilde_ok = 1;
+ break;
+ case '~':
+ /*
+ * tilde_ok is reset whenever
+ * any of ' " $( $(( ${ } are seen.
+ * Note that tilde_ok must be preserved
+ * through the sequence ${A=a=}~
+ */
+ if (type == XBASE &&
+ (f & (DOTILDE|DOASNTILDE)) &&
+ (tilde_ok & 2)) {
+ const char *tcp;
+ char *tdp = dp;
+
+ tcp = maybe_expand_tilde(sp,
+ &ds, &tdp,
+ f & DOASNTILDE);
+ if (tcp) {
+ if (dp != tdp)
+ word = IFS_WORD;
+ dp = tdp;
+ sp = tcp;
+ continue;
+ }
+ }
+ break;
+ }
+ else
+ /* undo temporary */
+ quote &= ~2;
+
+ if (make_magic) {
+ make_magic = false;
+ fdo |= DOMAGIC | (f & DOGLOB);
+ *dp++ = MAGIC;
+ } else if (ISMAGIC(c)) {
+ fdo |= DOMAGIC;
+ *dp++ = MAGIC;
+ }
+ /* save output char */
+ *dp++ = c;
+ word = IFS_WORD;
+ }
+ }
+}
+
+/*
+ * Prepare to generate the string returned by ${} substitution.
+ */
+static int
+varsub(Expand *xp, const char *sp, const char *word,
+ int *stypep, /* becomes qualifier type */
+ int *slenp) /* " " len (=, :=, etc.) valid iff *stypep != 0 */
+{
+ int c;
+ int state; /* next state: XBASE, XARG, XSUB, XNULLSUB */
+ int stype; /* substitution type */
+ int slen;
+ const char *p;
+ struct tbl *vp;
+ bool zero_ok = false;
+
+ if ((stype = sp[0]) == '\0')
+ /* Bad variable name */
+ return (-1);
+
+ xp->var = NULL;
+
+ /*-
+ * ${#var}, string length (-U: characters, +U: octets) or array size
+ * ${%var}, string width (-U: screen columns, +U: octets)
+ */
+ c = sp[1];
+ if (stype == '%' && c == '\0')
+ return (-1);
+ if ((stype == '#' || stype == '%') && c != '\0') {
+ /* Can't have any modifiers for ${#...} or ${%...} */
+ if (*word != CSUBST)
+ return (-1);
+ sp++;
+ /* Check for size of array */
+ if ((p = cstrchr(sp, '[')) && (p[1] == '*' || p[1] == '@') &&
+ p[2] == ']') {
+ int n = 0;
+
+ if (stype != '#')
+ return (-1);
+ vp = global(arrayname(sp));
+ if (vp->flag & (ISSET|ARRAY))
+ zero_ok = true;
+ for (; vp; vp = vp->u.array)
+ if (vp->flag & ISSET)
+ n++;
+ c = n;
+ } else if (c == '*' || c == '@') {
+ if (stype != '#')
+ return (-1);
+ c = e->loc->argc;
+ } else {
+ p = str_val(global(sp));
+ zero_ok = p != null;
+ if (stype == '#')
+ c = utflen(p);
+ else {
+ /* partial utf_mbswidth reimplementation */
+ const char *s = p;
+ unsigned int wc;
+ size_t len;
+ int cw;
+
+ c = 0;
+ while (*s) {
+ if (!UTFMODE || (len = utf_mbtowc(&wc,
+ s)) == (size_t)-1)
+ /* not UTFMODE or not UTF-8 */
+ wc = (unsigned char)(*s++);
+ else
+ /* UTFMODE and UTF-8 */
+ s += len;
+ /* wc == char or wchar at s++ */
+ if ((cw = utf_wcwidth(wc)) == -1) {
+ /* 646, 8859-1, 10646 C0/C1 */
+ c = -1;
+ break;
+ }
+ c += cw;
+ }
+ }
+ }
+ if (Flag(FNOUNSET) && c == 0 && !zero_ok)
+ errorf("%s: %s", sp, "parameter not set");
+ /* unqualified variable/string substitution */
+ *stypep = 0;
+ xp->str = shf_smprintf("%d", c);
+ return (XSUB);
+ }
+
+ /* Check for qualifiers in word part */
+ stype = 0;
+ c = word[slen = 0] == CHAR ? word[1] : 0;
+ if (c == ':') {
+ slen += 2;
+ stype = 0x80;
+ c = word[slen + 0] == CHAR ? word[slen + 1] : 0;
+ }
+ if (!stype && c == '/') {
+ slen += 2;
+ stype = c;
+ if (word[slen] == ADELIM) {
+ slen += 2;
+ stype |= 0x80;
+ }
+ } else if (stype == 0x80 && (c == ' ' || c == '0')) {
+ stype |= '0';
+ } else if (ctype(c, C_SUBOP1)) {
+ slen += 2;
+ stype |= c;
+ } else if (ctype(c, C_SUBOP2)) {
+ /* Note: ksh88 allows :%, :%%, etc */
+ slen += 2;
+ stype = c;
+ if (word[slen + 0] == CHAR && c == word[slen + 1]) {
+ stype |= 0x80;
+ slen += 2;
+ }
+ } else if (c == '@') {
+ /* @x where x is command char */
+ slen += 2;
+ stype |= 0x100;
+ if (word[slen] == CHAR) {
+ stype |= word[slen + 1];
+ slen += 2;
+ }
+ } else if (stype)
+ /* : is not ok */
+ return (-1);
+ if (!stype && *word != CSUBST)
+ return (-1);
+ *stypep = stype;
+ *slenp = slen;
+
+ c = sp[0];
+ if (c == '*' || c == '@') {
+ switch (stype & 0x17F) {
+ /* can't assign to a vector */
+ case '=':
+ /* can't trim a vector (yet) */
+ case '%':
+ case '#':
+ case '0':
+ case '/':
+ case 0x100 | '#':
+ case 0x100 | 'Q':
+ return (-1);
+ }
+ if (e->loc->argc == 0) {
+ xp->str = null;
+ xp->var = global(sp);
+ state = c == '@' ? XNULLSUB : XSUB;
+ } else {
+ xp->u.strv = (const char **)e->loc->argv + 1;
+ xp->str = *xp->u.strv++;
+ /* $@ */
+ xp->split = tobool(c == '@');
+ state = XARG;
+ }
+ /* POSIX 2009? */
+ zero_ok = true;
+ } else {
+ if ((p = cstrchr(sp, '[')) && (p[1] == '*' || p[1] == '@') &&
+ p[2] == ']') {
+ XPtrV wv;
+
+ switch (stype & 0x17F) {
+ /* can't assign to a vector */
+ case '=':
+ /* can't trim a vector (yet) */
+ case '%':
+ case '#':
+ case '?':
+ case '0':
+ case '/':
+ case 0x100 | '#':
+ case 0x100 | 'Q':
+ return (-1);
+ }
+ XPinit(wv, 32);
+ if ((c = sp[0]) == '!')
+ ++sp;
+ vp = global(arrayname(sp));
+ for (; vp; vp = vp->u.array) {
+ if (!(vp->flag&ISSET))
+ continue;
+ XPput(wv, c == '!' ? shf_smprintf("%lu",
+ arrayindex(vp)) :
+ str_val(vp));
+ }
+ if (XPsize(wv) == 0) {
+ xp->str = null;
+ state = p[1] == '@' ? XNULLSUB : XSUB;
+ XPfree(wv);
+ } else {
+ XPput(wv, 0);
+ xp->u.strv = (const char **)XPptrv(wv);
+ xp->str = *xp->u.strv++;
+ /* ${foo[@]} */
+ xp->split = tobool(p[1] == '@');
+ state = XARG;
+ }
+ } else {
+ /* Can't assign things like $! or $1 */
+ if ((stype & 0x17F) == '=' &&
+ ctype(*sp, C_VAR1 | C_DIGIT))
+ return (-1);
+ if (*sp == '!' && sp[1]) {
+ ++sp;
+ xp->var = global(sp);
+ if (vstrchr(sp, '['))
+ xp->str = shf_smprintf("%s[%lu]",
+ xp->var->name,
+ arrayindex(xp->var));
+ else
+ xp->str = xp->var->name;
+ } else {
+ xp->var = global(sp);
+ xp->str = str_val(xp->var);
+ }
+ state = XSUB;
+ }
+ }
+
+ c = stype & 0x7F;
+ /* test the compiler's code generator */
+ if (((stype < 0x100) && (ctype(c, C_SUBOP2) || c == '/' ||
+ (((stype&0x80) ? *xp->str=='\0' : xp->str==null) ? /* undef? */
+ c == '=' || c == '-' || c == '?' : c == '+'))) ||
+ stype == (0x80 | '0') || stype == (0x100 | '#') ||
+ stype == (0x100 | 'Q'))
+ /* expand word instead of variable value */
+ state = XBASE;
+ if (Flag(FNOUNSET) && xp->str == null && !zero_ok &&
+ (ctype(c, C_SUBOP2) || (state != XBASE && c != '+')))
+ errorf("%s: %s", sp, "parameter not set");
+ return (state);
+}
+
+/*
+ * Run the command in $(...) and read its output.
+ */
+static int
+comsub(Expand *xp, const char *cp, int fn MKSH_A_UNUSED)
+{
+ Source *s, *sold;
+ struct op *t;
+ struct shf *shf;
+ uint8_t old_utfmode = UTFMODE;
+
+ s = pushs(SSTRING, ATEMP);
+ s->start = s->str = cp;
+ sold = source;
+ t = compile(s, true);
+ afree(s, ATEMP);
+ source = sold;
+
+ UTFMODE = old_utfmode;
+
+ if (t == NULL)
+ return (XBASE);
+
+ /* no waitlast() unless specifically enabled later */
+ xp->split = false;
+
+ if (t->type == TCOM &&
+ *t->args == NULL && *t->vars == NULL && t->ioact != NULL) {
+ /* $(<file) */
+ struct ioword *io = *t->ioact;
+ char *name;
+
+ if ((io->flag & IOTYPE) != IOREAD)
+ errorf("%s: %s", "funny $() command",
+ snptreef(NULL, 32, "%R", io));
+ shf = shf_open(name = evalstr(io->name, DOTILDE), O_RDONLY, 0,
+ SHF_MAPHI|SHF_CLEXEC);
+ if (shf == NULL)
+ warningf(!Flag(FTALKING), "%s: %s %s: %s", name,
+ "can't open", "$(<...) input", cstrerror(errno));
+ } else if (fn == FUNSUB) {
+ int ofd1;
+ struct temp *tf = NULL;
+
+ /*
+ * create a temporary file, open for reading and writing,
+ * with an shf open for reading (buffered) but yet unused
+ */
+ maketemp(ATEMP, TT_FUNSUB, &tf);
+ if (!tf->shf) {
+ errorf("can't %s temporary file %s: %s",
+ "create", tf->tffn, cstrerror(errno));
+ }
+ /* extract shf from temporary file, unlink and free it */
+ shf = tf->shf;
+ unlink(tf->tffn);
+ afree(tf, ATEMP);
+ /* save stdout and let it point to the tempfile */
+ ofd1 = savefd(1);
+ ksh_dup2(shf_fileno(shf), 1, false);
+ /*
+ * run tree, with output thrown into the tempfile,
+ * in a new function block
+ */
+ valsub(t, NULL);
+ subst_exstat = exstat & 0xFF;
+ /* rewind the tempfile and restore regular stdout */
+ lseek(shf_fileno(shf), (off_t)0, SEEK_SET);
+ restfd(1, ofd1);
+ } else if (fn == VALSUB) {
+ xp->str = valsub(t, ATEMP);
+ subst_exstat = exstat & 0xFF;
+ return (XSUB);
+ } else {
+ int ofd1, pv[2];
+
+ openpipe(pv);
+ shf = shf_fdopen(pv[0], SHF_RD, NULL);
+ ofd1 = savefd(1);
+ if (pv[1] != 1) {
+ ksh_dup2(pv[1], 1, false);
+ close(pv[1]);
+ }
+ execute(t, XXCOM | XPIPEO | XFORK, NULL);
+ restfd(1, ofd1);
+ startlast();
+ /* waitlast() */
+ xp->split = true;
+ }
+
+ xp->u.shf = shf;
+ return (XCOM);
+}
+
+/*
+ * perform #pattern and %pattern substitution in ${}
+ */
+static char *
+trimsub(char *str, char *pat, int how)
+{
+ char *end = strnul(str);
+ char *p, c;
+
+ switch (how & 0xFF) {
+ case '#':
+ /* shortest match at beginning */
+ for (p = str; p <= end; p += utf_ptradj(p)) {
+ c = *p; *p = '\0';
+ if (gmatchx(str, pat, false)) {
+ *p = c;
+ return (p);
+ }
+ *p = c;
+ }
+ break;
+ case '#'|0x80:
+ /* longest match at beginning */
+ for (p = end; p >= str; p--) {
+ c = *p; *p = '\0';
+ if (gmatchx(str, pat, false)) {
+ *p = c;
+ return (p);
+ }
+ *p = c;
+ }
+ break;
+ case '%':
+ /* shortest match at end */
+ p = end;
+ while (p >= str) {
+ if (gmatchx(p, pat, false))
+ goto trimsub_match;
+ if (UTFMODE) {
+ char *op = p;
+ while ((p-- > str) && ((*p & 0xC0) == 0x80))
+ ;
+ if ((p < str) || (p + utf_ptradj(p) != op))
+ p = op - 1;
+ } else
+ --p;
+ }
+ break;
+ case '%'|0x80:
+ /* longest match at end */
+ for (p = str; p <= end; p++)
+ if (gmatchx(p, pat, false)) {
+ trimsub_match:
+ strndupx(end, str, p - str, ATEMP);
+ return (end);
+ }
+ break;
+ }
+
+ /* no match, return string */
+ return (str);
+}
+
+/*
+ * glob
+ * Name derived from V6's /etc/glob, the program that expanded filenames.
+ */
+
+/* XXX cp not const 'cause slashes are temporarily replaced with NULs... */
+static void
+glob(char *cp, XPtrV *wp, bool markdirs)
+{
+ int oldsize = XPsize(*wp);
+
+ if (glob_str(cp, wp, markdirs) == 0)
+ XPput(*wp, debunk(cp, cp, strlen(cp) + 1));
+ else
+ qsort(XPptrv(*wp) + oldsize, XPsize(*wp) - oldsize,
+ sizeof(void *), xstrcmp);
+}
+
+#define GF_NONE 0
+#define GF_EXCHECK BIT(0) /* do existence check on file */
+#define GF_GLOBBED BIT(1) /* some globbing has been done */
+#define GF_MARKDIR BIT(2) /* add trailing / to directories */
+
+/*
+ * Apply file globbing to cp and store the matching files in wp. Returns
+ * the number of matches found.
+ */
+int
+glob_str(char *cp, XPtrV *wp, bool markdirs)
+{
+ int oldsize = XPsize(*wp);
+ XString xs;
+ char *xp;
+
+ Xinit(xs, xp, 256, ATEMP);
+ globit(&xs, &xp, cp, wp, markdirs ? GF_MARKDIR : GF_NONE);
+ Xfree(xs, xp);
+
+ return (XPsize(*wp) - oldsize);
+}
+
+static void
+globit(XString *xs, /* dest string */
+ char **xpp, /* ptr to dest end */
+ char *sp, /* source path */
+ XPtrV *wp, /* output list */
+ int check) /* GF_* flags */
+{
+ char *np; /* next source component */
+ char *xp = *xpp;
+ char *se;
+ char odirsep;
+
+ /* This to allow long expansions to be interrupted */
+ intrcheck();
+
+ if (sp == NULL) {
+ /* end of source path */
+ /*
+ * We only need to check if the file exists if a pattern
+ * is followed by a non-pattern (eg, foo*x/bar; no check
+ * is needed for foo* since the match must exist) or if
+ * any patterns were expanded and the markdirs option is set.
+ * Symlinks make things a bit tricky...
+ */
+ if ((check & GF_EXCHECK) ||
+ ((check & GF_MARKDIR) && (check & GF_GLOBBED))) {
+#define stat_check() (stat_done ? stat_done : (stat_done = \
+ stat(Xstring(*xs, xp), &statb) < 0 ? -1 : 1))
+ struct stat lstatb, statb;
+ /* -1: failed, 1 ok, 0 not yet done */
+ int stat_done = 0;
+
+ if (mksh_lstat(Xstring(*xs, xp), &lstatb) < 0)
+ return;
+ /*
+ * special case for systems which strip trailing
+ * slashes from regular files (eg, /etc/passwd/).
+ * SunOS 4.1.3 does this...
+ */
+ if ((check & GF_EXCHECK) && xp > Xstring(*xs, xp) &&
+ xp[-1] == '/' && !S_ISDIR(lstatb.st_mode) &&
+ (!S_ISLNK(lstatb.st_mode) ||
+ stat_check() < 0 || !S_ISDIR(statb.st_mode)))
+ return;
+ /*
+ * Possibly tack on a trailing / if there isn't already
+ * one and if the file is a directory or a symlink to a
+ * directory
+ */
+ if (((check & GF_MARKDIR) && (check & GF_GLOBBED)) &&
+ xp > Xstring(*xs, xp) && xp[-1] != '/' &&
+ (S_ISDIR(lstatb.st_mode) ||
+ (S_ISLNK(lstatb.st_mode) && stat_check() > 0 &&
+ S_ISDIR(statb.st_mode)))) {
+ *xp++ = '/';
+ *xp = '\0';
+ }
+ }
+ strndupx(np, Xstring(*xs, xp), Xlength(*xs, xp), ATEMP);
+ XPput(*wp, np);
+ return;
+ }
+
+ if (xp > Xstring(*xs, xp))
+ *xp++ = '/';
+ while (*sp == '/') {
+ Xcheck(*xs, xp);
+ *xp++ = *sp++;
+ }
+ np = strchr(sp, '/');
+ if (np != NULL) {
+ se = np;
+ /* don't assume '/', can be multiple kinds */
+ odirsep = *np;
+ *np++ = '\0';
+ } else {
+ odirsep = '\0'; /* keep gcc quiet */
+ se = sp + strlen(sp);
+ }
+
+
+ /*
+ * Check if sp needs globbing - done to avoid pattern checks for strings
+ * containing MAGIC characters, open [s without the matching close ],
+ * etc. (otherwise opendir() will be called which may fail because the
+ * directory isn't readable - if no globbing is needed, only execute
+ * permission should be required (as per POSIX)).
+ */
+ if (!has_globbing(sp, se)) {
+ XcheckN(*xs, xp, se - sp + 1);
+ debunk(xp, sp, Xnleft(*xs, xp));
+ xp += strlen(xp);
+ *xpp = xp;
+ globit(xs, xpp, np, wp, check);
+ } else {
+ DIR *dirp;
+ struct dirent *d;
+ char *name;
+ size_t len, prefix_len;
+
+ /* xp = *xpp; copy_non_glob() may have re-alloc'd xs */
+ *xp = '\0';
+ prefix_len = Xlength(*xs, xp);
+ dirp = opendir(prefix_len ? Xstring(*xs, xp) : ".");
+ if (dirp == NULL)
+ goto Nodir;
+ while ((d = readdir(dirp)) != NULL) {
+ name = d->d_name;
+ if (name[0] == '.' &&
+ (name[1] == 0 || (name[1] == '.' && name[2] == 0)))
+ /* always ignore . and .. */
+ continue;
+ if ((*name == '.' && *sp != '.') ||
+ !gmatchx(name, sp, true))
+ continue;
+
+ len = strlen(d->d_name) + 1;
+ XcheckN(*xs, xp, len);
+ memcpy(xp, name, len);
+ *xpp = xp + len - 1;
+ globit(xs, xpp, np, wp,
+ (check & GF_MARKDIR) | GF_GLOBBED
+ | (np ? GF_EXCHECK : GF_NONE));
+ xp = Xstring(*xs, xp) + prefix_len;
+ }
+ closedir(dirp);
+ Nodir:
+ ;
+ }
+
+ if (np != NULL)
+ *--np = odirsep;
+}
+
+/* remove MAGIC from string */
+char *
+debunk(char *dp, const char *sp, size_t dlen)
+{
+ char *d;
+ const char *s;
+
+ if ((s = cstrchr(sp, MAGIC))) {
+ if (s - sp >= (ssize_t)dlen)
+ return (dp);
+ memmove(dp, sp, s - sp);
+ for (d = dp + (s - sp); *s && (d - dp < (ssize_t)dlen); s++)
+ if (!ISMAGIC(*s) || !(*++s & 0x80) ||
+ !vstrchr("*+?@! ", *s & 0x7f))
+ *d++ = *s;
+ else {
+ /* extended pattern operators: *+?@! */
+ if ((*s & 0x7f) != ' ')
+ *d++ = *s & 0x7f;
+ if (d - dp < (ssize_t)dlen)
+ *d++ = '(';
+ }
+ *d = '\0';
+ } else if (dp != sp)
+ strlcpy(dp, sp, dlen);
+ return (dp);
+}
+
+/*
+ * Check if p is an unquoted name, possibly followed by a / or :. If so
+ * puts the expanded version in *dcp,dp and returns a pointer in p just
+ * past the name, otherwise returns 0.
+ */
+static const char *
+maybe_expand_tilde(const char *p, XString *dsp, char **dpp, int isassign)
+{
+ XString ts;
+ char *dp = *dpp;
+ char *tp;
+ const char *r;
+
+ Xinit(ts, tp, 16, ATEMP);
+ /* : only for DOASNTILDE form */
+ while (p[0] == CHAR && p[1] != '/' && (!isassign || p[1] != ':'))
+ {
+ Xcheck(ts, tp);
+ *tp++ = p[1];
+ p += 2;
+ }
+ *tp = '\0';
+ r = (p[0] == EOS || p[0] == CHAR || p[0] == CSUBST) ?
+ tilde(Xstring(ts, tp)) : NULL;
+ Xfree(ts, tp);
+ if (r) {
+ while (*r) {
+ Xcheck(*dsp, dp);
+ if (ISMAGIC(*r))
+ *dp++ = MAGIC;
+ *dp++ = *r++;
+ }
+ *dpp = dp;
+ r = p;
+ }
+ return (r);
+}
+
+/*
+ * tilde expansion
+ *
+ * based on a version by Arnold Robbins
+ */
+
+char *
+tilde(char *cp)
+{
+ char *dp = null;
+
+ if (cp[0] == '\0')
+ dp = str_val(global("HOME"));
+ else if (cp[0] == '+' && cp[1] == '\0')
+ dp = str_val(global("PWD"));
+ else if (cp[0] == '-' && cp[1] == '\0')
+ dp = str_val(global("OLDPWD"));
+#ifndef MKSH_NOPWNAM
+ else
+ dp = homedir(cp);
+#endif
+ /* If HOME, PWD or OLDPWD are not set, don't expand ~ */
+ return (dp == null ? NULL : dp);
+}
+
+#ifndef MKSH_NOPWNAM
+/*
+ * map userid to user's home directory.
+ * note that 4.3's getpw adds more than 6K to the shell,
+ * and the YP version probably adds much more.
+ * we might consider our own version of getpwnam() to keep the size down.
+ */
+static char *
+homedir(char *name)
+{
+ struct tbl *ap;
+
+ ap = ktenter(&homedirs, name, hash(name));
+ if (!(ap->flag & ISSET)) {
+ struct passwd *pw;
+
+ pw = getpwnam(name);
+ if (pw == NULL)
+ return (NULL);
+ strdupx(ap->val.s, pw->pw_dir, APERM);
+ ap->flag |= DEFINED|ISSET|ALLOC;
+ }
+ return (ap->val.s);
+}
+#endif
+
+static void
+alt_expand(XPtrV *wp, char *start, char *exp_start, char *end, int fdo)
+{
+ int count = 0;
+ char *brace_start, *brace_end, *comma = NULL;
+ char *field_start;
+ char *p;
+
+ /* search for open brace */
+ for (p = exp_start; (p = strchr(p, MAGIC)) && p[1] != '{' /*}*/; p += 2)
+ ;
+ brace_start = p;
+
+ /* find matching close brace, if any */
+ if (p) {
+ comma = NULL;
+ count = 1;
+ for (p += 2; *p && count; p++) {
+ if (ISMAGIC(*p)) {
+ if (*++p == '{' /*}*/)
+ count++;
+ else if (*p == /*{*/ '}')
+ --count;
+ else if (*p == ',' && count == 1)
+ comma = p;
+ }
+ }
+ }
+ /* no valid expansions... */
+ if (!p || count != 0) {
+ /*
+ * Note that given a{{b,c} we do not expand anything (this is
+ * what AT&T ksh does. This may be changed to do the {b,c}
+ * expansion. }
+ */
+ if (fdo & DOGLOB)
+ glob(start, wp, tobool(fdo & DOMARKDIRS));
+ else
+ XPput(*wp, debunk(start, start, end - start));
+ return;
+ }
+ brace_end = p;
+ if (!comma) {
+ alt_expand(wp, start, brace_end, end, fdo);
+ return;
+ }
+
+ /* expand expression */
+ field_start = brace_start + 2;
+ count = 1;
+ for (p = brace_start + 2; p != brace_end; p++) {
+ if (ISMAGIC(*p)) {
+ if (*++p == '{' /*}*/)
+ count++;
+ else if ((*p == /*{*/ '}' && --count == 0) ||
+ (*p == ',' && count == 1)) {
+ char *news;
+ int l1, l2, l3;
+
+ /*
+ * addition safe since these operate on
+ * one string (separate substrings)
+ */
+ l1 = brace_start - start;
+ l2 = (p - 1) - field_start;
+ l3 = end - brace_end;
+ news = alloc(l1 + l2 + l3 + 1, ATEMP);
+ memcpy(news, start, l1);
+ memcpy(news + l1, field_start, l2);
+ memcpy(news + l1 + l2, brace_end, l3);
+ news[l1 + l2 + l3] = '\0';
+ alt_expand(wp, news, news + l1,
+ news + l1 + l2 + l3, fdo);
+ field_start = p + 1;
+ }
+ }
+ }
+ return;
+}
+
+/* helper function due to setjmp/longjmp woes */
+static char *
+valsub(struct op *t, Area *ap)
+{
+ char * volatile cp = NULL;
+ struct tbl * volatile vp = NULL;
+
+ newenv(E_FUNC);
+ newblock();
+ if (ap)
+ vp = local("REPLY", false);
+ if (!kshsetjmp(e->jbuf))
+ execute(t, XXCOM | XERROK, NULL);
+ if (vp)
+ strdupx(cp, str_val(vp), ap);
+ quitenv(NULL);
+
+ return (cp);
+}
Deleted: vendor/MirOS/mksh/R50/exec.c
===================================================================
--- vendor/MirOS/mksh/dist/exec.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/exec.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1735 +0,0 @@
-/* $OpenBSD: exec.c,v 1.50 2013/06/10 21:09:27 millert Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- * 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-
-__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.125 2013/07/21 20:44:44 tg Exp $");
-
-#ifndef MKSH_DEFAULT_EXECSHELL
-#define MKSH_DEFAULT_EXECSHELL "/bin/sh"
-#endif
-
-static int comexec(struct op *, struct tbl * volatile, const char **,
- int volatile, volatile int *);
-static void scriptexec(struct op *, const char **) MKSH_A_NORETURN;
-static int call_builtin(struct tbl *, const char **, const char *);
-static int iosetup(struct ioword *, struct tbl *);
-static int herein(struct ioword *, char **);
-static const char *do_selectargs(const char **, bool);
-static Test_op dbteste_isa(Test_env *, Test_meta);
-static const char *dbteste_getopnd(Test_env *, Test_op, bool);
-static void dbteste_error(Test_env *, int, const char *);
-static int search_access(const char *, int);
-/* XXX: horrible kludge to fit within the framework */
-static char *plain_fmt_entry(char *, size_t, unsigned int, const void *);
-static char *select_fmt_entry(char *, size_t, unsigned int, const void *);
-
-/*
- * execute command tree
- */
-int
-execute(struct op * volatile t,
- /* if XEXEC don't fork */
- volatile int flags,
- volatile int * volatile xerrok)
-{
- int i;
- volatile int rv = 0, dummy = 0;
- int pv[2];
- const char ** volatile ap = NULL;
- char ** volatile up;
- const char *s, *ccp;
- struct ioword **iowp;
- struct tbl *tp = NULL;
- char *cp;
-
- if (t == NULL)
- return (0);
-
- /* Caller doesn't care if XERROK should propagate. */
- if (xerrok == NULL)
- xerrok = &dummy;
-
- if ((flags&XFORK) && !(flags&XEXEC) && t->type != TPIPE)
- /* run in sub-process */
- return (exchild(t, flags & ~XTIME, xerrok, -1));
-
- newenv(E_EXEC);
- if (trap)
- runtraps(0);
-
- /* we want to run an executable, do some variance checks */
- if (t->type == TCOM) {
- /* check if this is 'var=<<EOF' */
- if (
- /* we have zero arguments, i.e. no programme to run */
- t->args[0] == NULL &&
- /* we have exactly one variable assignment */
- t->vars[0] != NULL && t->vars[1] == NULL &&
- /* we have exactly one I/O redirection */
- t->ioact != NULL && t->ioact[0] != NULL &&
- t->ioact[1] == NULL &&
- /* of type "here document" (or "here string") */
- (t->ioact[0]->flag & IOTYPE) == IOHERE &&
- /* the variable assignment begins with a valid varname */
- (ccp = skip_wdvarname(t->vars[0], true)) != t->vars[0] &&
- /* and has no right-hand side (i.e. "varname=") */
- ccp[0] == CHAR && ccp[1] == '=' && ccp[2] == EOS &&
- /* plus we can have a here document content */
- herein(t->ioact[0], &cp) == 0 && cp && *cp) {
- char *sp = cp, *dp;
- size_t n = ccp - t->vars[0] + 2, z;
-
- /* drop redirection (will be garbage collected) */
- t->ioact = NULL;
-
- /* set variable to its expanded value */
- z = strlen(cp) + 1;
- if (notoktomul(z, 2) || notoktoadd(z * 2, n))
- internal_errorf(Toomem, (size_t)-1);
- dp = alloc(z * 2 + n, ATEMP);
- memcpy(dp, t->vars[0], n);
- t->vars[0] = dp;
- dp += n;
- while (*sp) {
- *dp++ = QCHAR;
- *dp++ = *sp++;
- }
- *dp = EOS;
- /* free the expanded value */
- afree(cp, APERM);
- }
-
- /*
- * Clear subst_exstat before argument expansion. Used by
- * null commands (see comexec() and c_eval()) and by c_set().
- */
- subst_exstat = 0;
-
- /* for $LINENO */
- current_lineno = t->lineno;
-
- /*
- * POSIX says expand command words first, then redirections,
- * and assignments last..
- */
- up = eval(t->args, t->u.evalflags | DOBLANK | DOGLOB | DOTILDE);
- if (flags & XTIME)
- /* Allow option parsing (bizarre, but POSIX) */
- timex_hook(t, &up);
- ap = (const char **)up;
- if (ap[0])
- tp = findcom(ap[0], FC_BI|FC_FUNC);
- }
- flags &= ~XTIME;
-
- if (t->ioact != NULL || t->type == TPIPE || t->type == TCOPROC) {
- e->savefd = alloc2(NUFILE, sizeof(short), ATEMP);
- /* initialise to not redirected */
- memset(e->savefd, 0, NUFILE * sizeof(short));
- }
-
- /* mark for replacement later (unless TPIPE) */
- vp_pipest->flag |= INT_L;
-
- /* do redirection, to be restored in quitenv() */
- if (t->ioact != NULL)
- for (iowp = t->ioact; *iowp != NULL; iowp++) {
- if (iosetup(*iowp, tp) < 0) {
- exstat = rv = 1;
- /*
- * Redirection failures for special commands
- * cause (non-interactive) shell to exit.
- */
- if (tp && tp->type == CSHELL &&
- (tp->flag & SPEC_BI))
- errorfz();
- /* Deal with FERREXIT, quitenv(), etc. */
- goto Break;
- }
- }
-
- switch (t->type) {
- case TCOM:
- rv = comexec(t, tp, (const char **)ap, flags, xerrok);
- break;
-
- case TPAREN:
- rv = execute(t->left, flags | XFORK, xerrok);
- break;
-
- case TPIPE:
- flags |= XFORK;
- flags &= ~XEXEC;
- e->savefd[0] = savefd(0);
- e->savefd[1] = savefd(1);
- while (t->type == TPIPE) {
- openpipe(pv);
- /* stdout of curr */
- ksh_dup2(pv[1], 1, false);
- /**
- * Let exchild() close pv[0] in child
- * (if this isn't done, commands like
- * (: ; cat /etc/termcap) | sleep 1
- * will hang forever).
- */
- exchild(t->left, flags | XPIPEO | XCCLOSE,
- NULL, pv[0]);
- /* stdin of next */
- ksh_dup2(pv[0], 0, false);
- closepipe(pv);
- flags |= XPIPEI;
- t = t->right;
- }
- /* stdout of last */
- restfd(1, e->savefd[1]);
- /* no need to re-restore this */
- e->savefd[1] = 0;
- /* Let exchild() close 0 in parent, after fork, before wait */
- i = exchild(t, flags | XPCLOSE | XPIPEST, xerrok, 0);
- if (!(flags&XBGND) && !(flags&XXCOM))
- rv = i;
- break;
-
- case TLIST:
- while (t->type == TLIST) {
- execute(t->left, flags & XERROK, NULL);
- t = t->right;
- }
- rv = execute(t, flags & XERROK, xerrok);
- break;
-
- case TCOPROC: {
-#ifndef MKSH_NOPROSPECTOFWORK
- sigset_t omask;
-
- /*
- * Block sigchild as we are using things changed in the
- * signal handler
- */
- sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
- e->type = E_ERRH;
- if ((i = kshsetjmp(e->jbuf))) {
- sigprocmask(SIG_SETMASK, &omask, NULL);
- quitenv(NULL);
- unwind(i);
- /* NOTREACHED */
- }
-#endif
- /* Already have a (live) co-process? */
- if (coproc.job && coproc.write >= 0)
- errorf("coprocess already exists");
-
- /* Can we re-use the existing co-process pipe? */
- coproc_cleanup(true);
-
- /* do this before opening pipes, in case these fail */
- e->savefd[0] = savefd(0);
- e->savefd[1] = savefd(1);
-
- openpipe(pv);
- if (pv[0] != 0) {
- ksh_dup2(pv[0], 0, false);
- close(pv[0]);
- }
- coproc.write = pv[1];
- coproc.job = NULL;
-
- if (coproc.readw >= 0)
- ksh_dup2(coproc.readw, 1, false);
- else {
- openpipe(pv);
- coproc.read = pv[0];
- ksh_dup2(pv[1], 1, false);
- /* closed before first read */
- coproc.readw = pv[1];
- coproc.njobs = 0;
- /* create new coprocess id */
- ++coproc.id;
- }
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
- /* no more need for error handler */
- e->type = E_EXEC;
-#endif
-
- /*
- * exchild() closes coproc.* in child after fork,
- * will also increment coproc.njobs when the
- * job is actually created.
- */
- flags &= ~XEXEC;
- exchild(t->left, flags | XBGND | XFORK | XCOPROC | XCCLOSE,
- NULL, coproc.readw);
- break;
- }
-
- case TASYNC:
- /*
- * XXX non-optimal, I think - "(foo &)", forks for (),
- * forks again for async... parent should optimise
- * this to "foo &"...
- */
- rv = execute(t->left, (flags&~XEXEC)|XBGND|XFORK, xerrok);
- break;
-
- case TOR:
- case TAND:
- rv = execute(t->left, XERROK, xerrok);
- if ((rv == 0) == (t->type == TAND))
- rv = execute(t->right, flags & XERROK, xerrok);
- else {
- flags |= XERROK;
- if (xerrok)
- *xerrok = 1;
- }
- break;
-
- case TBANG:
- rv = !execute(t->right, XERROK, xerrok);
- flags |= XERROK;
- if (xerrok)
- *xerrok = 1;
- break;
-
- case TDBRACKET: {
- Test_env te;
-
- te.flags = TEF_DBRACKET;
- te.pos.wp = t->args;
- te.isa = dbteste_isa;
- te.getopnd = dbteste_getopnd;
- te.eval = test_eval;
- te.error = dbteste_error;
-
- rv = test_parse(&te);
- break;
- }
-
- case TFOR:
- case TSELECT: {
- volatile bool is_first = true;
-
- ap = (t->vars == NULL) ? e->loc->argv + 1 :
- (const char **)eval((const char **)t->vars,
- DOBLANK | DOGLOB | DOTILDE);
- e->type = E_LOOP;
- while ((i = kshsetjmp(e->jbuf))) {
- if ((e->flags&EF_BRKCONT_PASS) ||
- (i != LBREAK && i != LCONTIN)) {
- quitenv(NULL);
- unwind(i);
- } else if (i == LBREAK) {
- rv = 0;
- goto Break;
- }
- }
- /* in case of a continue */
- rv = 0;
- if (t->type == TFOR) {
- while (*ap != NULL) {
- setstr(global(t->str), *ap++, KSH_UNWIND_ERROR);
- rv = execute(t->left, flags & XERROK, xerrok);
- }
- } else {
- /* TSELECT */
- for (;;) {
- if (!(ccp = do_selectargs(ap, is_first))) {
- rv = 1;
- break;
- }
- is_first = false;
- setstr(global(t->str), ccp, KSH_UNWIND_ERROR);
- execute(t->left, flags & XERROK, xerrok);
- }
- }
- break;
- }
-
- case TWHILE:
- case TUNTIL:
- e->type = E_LOOP;
- while ((i = kshsetjmp(e->jbuf))) {
- if ((e->flags&EF_BRKCONT_PASS) ||
- (i != LBREAK && i != LCONTIN)) {
- quitenv(NULL);
- unwind(i);
- } else if (i == LBREAK) {
- rv = 0;
- goto Break;
- }
- }
- /* in case of a continue */
- rv = 0;
- while ((execute(t->left, XERROK, NULL) == 0) ==
- (t->type == TWHILE))
- rv = execute(t->right, flags & XERROK, xerrok);
- break;
-
- case TIF:
- case TELIF:
- if (t->right == NULL)
- /* should be error */
- break;
- rv = execute(t->left, XERROK, NULL) == 0 ?
- execute(t->right->left, flags & XERROK, xerrok) :
- execute(t->right->right, flags & XERROK, xerrok);
- break;
-
- case TCASE:
- i = 0;
- ccp = evalstr(t->str, DOTILDE);
- for (t = t->left; t != NULL && t->type == TPAT; t = t->right) {
- for (ap = (const char **)t->vars; *ap; ap++) {
- if (i || ((s = evalstr(*ap, DOTILDE|DOPAT)) &&
- gmatchx(ccp, s, false))) {
- rv = execute(t->left, flags & XERROK,
- xerrok);
- i = 0;
- switch (t->u.charflag) {
- case '&':
- i = 1;
- /* FALLTHROUGH */
- case '|':
- goto TCASE_next;
- }
- goto TCASE_out;
- }
- }
- i = 0;
- TCASE_next:
- /* empty */;
- }
- TCASE_out:
- break;
-
- case TBRACE:
- rv = execute(t->left, flags & XERROK, xerrok);
- break;
-
- case TFUNCT:
- rv = define(t->str, t);
- break;
-
- case TTIME:
- /*
- * Clear XEXEC so nested execute() call doesn't exit
- * (allows "ls -l | time grep foo").
- */
- rv = timex(t, flags & ~XEXEC, xerrok);
- break;
-
- case TEXEC:
- /* an eval'd TCOM */
- s = t->args[0];
- up = makenv();
- restoresigs();
- cleanup_proc_env();
- {
- union mksh_ccphack cargs;
-
- cargs.ro = t->args;
- execve(t->str, cargs.rw, up);
- rv = errno;
- }
- if (rv == ENOEXEC)
- scriptexec(t, (const char **)up);
- else
- errorf("%s: %s", s, cstrerror(rv));
- }
- Break:
- exstat = rv & 0xFF;
- if (vp_pipest->flag & INT_L) {
- unset(vp_pipest, 1);
- vp_pipest->flag = DEFINED | ISSET | INTEGER | RDONLY |
- ARRAY | INT_U;
- vp_pipest->val.i = rv;
- }
-
- /* restores IO */
- quitenv(NULL);
- if ((flags&XEXEC))
- /* exit child */
- unwind(LEXIT);
- if (rv != 0 && !(flags & XERROK) &&
- (xerrok == NULL || !*xerrok)) {
- if (Flag(FERREXIT) & 0x80) {
- /* inside eval */
- Flag(FERREXIT) = 0;
- } else {
- trapsig(ksh_SIGERR);
- if (Flag(FERREXIT))
- unwind(LERROR);
- }
- }
- return (rv);
-}
-
-/*
- * execute simple command
- */
-
-static int
-comexec(struct op *t, struct tbl * volatile tp, const char **ap,
- volatile int flags, volatile int *xerrok)
-{
- int i;
- volatile int rv = 0;
- const char *cp;
- const char **lastp;
- /* Must be static (XXX but why?) */
- static struct op texec;
- int type_flags;
- bool keepasn_ok;
- int fcflags = FC_BI|FC_FUNC|FC_PATH;
- bool bourne_function_call = false;
- struct block *l_expand, *l_assign;
-
- /*
- * snag the last argument for $_ XXX not the same as AT&T ksh,
- * which only seems to set $_ after a newline (but not in
- * functions/dot scripts, but in interactive and script) -
- * perhaps save last arg here and set it in shell()?.
- */
- if (Flag(FTALKING) && *(lastp = ap)) {
- while (*++lastp)
- ;
- /* setstr() can't fail here */
- setstr(typeset("_", LOCAL, 0, INTEGER, 0), *--lastp,
- KSH_RETURN_ERROR);
- }
-
- /**
- * Deal with the shell builtins builtin, exec and command since
- * they can be followed by other commands. This must be done before
- * we know if we should create a local block which must be done
- * before we can do a path search (in case the assignments change
- * PATH).
- * Odd cases:
- * FOO=bar exec >/dev/null FOO is kept but not exported
- * FOO=bar exec foobar FOO is exported
- * FOO=bar command exec >/dev/null FOO is neither kept nor exported
- * FOO=bar command FOO is neither kept nor exported
- * PATH=... foobar use new PATH in foobar search
- */
- keepasn_ok = true;
- while (tp && tp->type == CSHELL) {
- /* undo effects of command */
- fcflags = FC_BI|FC_FUNC|FC_PATH;
- if (tp->val.f == c_builtin) {
- if ((cp = *++ap) == NULL ||
- (!strcmp(cp, "--") && (cp = *++ap) == NULL)) {
- tp = NULL;
- break;
- }
- if ((tp = findcom(cp, FC_BI)) == NULL)
- errorf("%s: %s: %s", Tbuiltin, cp, "not a builtin");
- continue;
- } else if (tp->val.f == c_exec) {
- if (ap[1] == NULL)
- break;
- ap++;
- flags |= XEXEC;
- } else if (tp->val.f == c_command) {
- int optc, saw_p = 0;
-
- /*
- * Ugly dealing with options in two places (here
- * and in c_command(), but such is life)
- */
- ksh_getopt_reset(&builtin_opt, 0);
- while ((optc = ksh_getopt(ap, &builtin_opt, ":p")) == 'p')
- saw_p = 1;
- if (optc != EOF)
- /* command -vV or something */
- break;
- /* don't look for functions */
- fcflags = FC_BI|FC_PATH;
- if (saw_p) {
- if (Flag(FRESTRICTED)) {
- warningf(true, "%s: %s",
- "command -p", "restricted");
- rv = 1;
- goto Leave;
- }
- fcflags |= FC_DEFPATH;
- }
- ap += builtin_opt.optind;
- /*
- * POSIX says special builtins lose their status
- * if accessed using command.
- */
- keepasn_ok = false;
- if (!ap[0]) {
- /* ensure command with no args exits with 0 */
- subst_exstat = 0;
- break;
- }
-#ifndef MKSH_NO_EXTERNAL_CAT
- } else if (tp->val.f == c_cat) {
- /*
- * if we have any flags, do not use the builtin
- * in theory, we could allow -u, but that would
- * mean to use ksh_getopt here and possibly ad-
- * ded complexity and more code and isn't worth
- * additional hassle (and the builtin must call
- * ksh_getopt already but can't come back here)
- */
- if (ap[1] && ap[1][0] == '-' && ap[1][1] != '\0' &&
- /* argument, begins with -, is not - or -- */
- (ap[1][1] != '-' || ap[1][2] != '\0'))
- /* don't look for builtins or functions */
- fcflags = FC_PATH;
- else
- /* go on, use the builtin */
- break;
-#endif
-#if !defined(MKSH_SMALL)
- } else if (tp->val.f == c_trap) {
- t->u.evalflags &= ~DOTCOMEXEC;
- break;
-#endif
- } else
- break;
- tp = findcom(ap[0], fcflags & (FC_BI|FC_FUNC));
- }
-#if !defined(MKSH_SMALL)
- if (t->u.evalflags & DOTCOMEXEC)
- flags |= XEXEC;
-#endif
- l_expand = e->loc;
- if (keepasn_ok && (!ap[0] || (tp && (tp->flag & KEEPASN))))
- type_flags = 0;
- else {
- /* create new variable/function block */
- newblock();
- /* ksh functions don't keep assignments, POSIX functions do. */
- if (keepasn_ok && tp && tp->type == CFUNC &&
- !(tp->flag & FKSH)) {
- bourne_function_call = true;
- type_flags = EXPORT;
- } else
- type_flags = LOCAL|LOCAL_COPY|EXPORT;
- }
- l_assign = e->loc;
- if (Flag(FEXPORT))
- type_flags |= EXPORT;
- if (Flag(FXTRACE))
- change_xtrace(2, false);
- for (i = 0; t->vars[i]; i++) {
- /* do NOT lookup in the new var/fn block just created */
- e->loc = l_expand;
- cp = evalstr(t->vars[i], DOASNTILDE);
- e->loc = l_assign;
- if (Flag(FXTRACE)) {
- const char *ccp;
-
- ccp = skip_varname(cp, true);
- if (*ccp == '+')
- ++ccp;
- if (*ccp == '=')
- ++ccp;
- shf_write(cp, ccp - cp, shl_xtrace);
- print_value_quoted(shl_xtrace, ccp);
- shf_putc(' ', shl_xtrace);
- }
- /* but assign in there as usual */
- typeset(cp, type_flags, 0, 0, 0);
- if (bourne_function_call && !(type_flags & EXPORT))
- typeset(cp, LOCAL|LOCAL_COPY|EXPORT, 0, 0, 0);
- }
-
- if (Flag(FXTRACE)) {
- change_xtrace(2, false);
- if (ap[rv = 0]) {
- xtrace_ap_loop:
- print_value_quoted(shl_xtrace, ap[rv]);
- if (ap[++rv]) {
- shf_putc(' ', shl_xtrace);
- goto xtrace_ap_loop;
- }
- }
- change_xtrace(1, false);
- }
-
- if ((cp = *ap) == NULL) {
- rv = subst_exstat;
- goto Leave;
- } else if (!tp) {
- if (Flag(FRESTRICTED) && vstrchr(cp, '/')) {
- warningf(true, "%s: %s", cp, "restricted");
- rv = 1;
- goto Leave;
- }
- tp = findcom(cp, fcflags);
- }
-
- switch (tp->type) {
-
- /* shell built-in */
- case CSHELL:
- rv = call_builtin(tp, (const char **)ap, null);
- if (!keepasn_ok && tp->val.f == c_shift) {
- l_expand->argc = l_assign->argc;
- l_expand->argv = l_assign->argv;
- }
- break;
-
- /* function call */
- case CFUNC: {
- volatile unsigned char old_xflag;
- volatile uint32_t old_inuse;
- const char * volatile old_kshname;
-
- if (!(tp->flag & ISSET)) {
- struct tbl *ftp;
-
- if (!tp->u.fpath) {
- rv = (tp->u2.errnov == ENOENT) ? 127 : 126;
- warningf(true, "%s: %s %s: %s", cp,
- "can't find", "function definition file",
- cstrerror(tp->u2.errnov));
- break;
- }
- if (include(tp->u.fpath, 0, NULL, false) < 0) {
- warningf(true, "%s: %s %s %s: %s", cp,
- "can't open", "function definition file",
- tp->u.fpath, cstrerror(errno));
- rv = 127;
- break;
- }
- if (!(ftp = findfunc(cp, hash(cp), false)) ||
- !(ftp->flag & ISSET)) {
- warningf(true, "%s: %s %s", cp,
- "function not defined by", tp->u.fpath);
- rv = 127;
- break;
- }
- tp = ftp;
- }
-
- /*
- * ksh functions set $0 to function name, POSIX
- * functions leave $0 unchanged.
- */
- old_kshname = kshname;
- if (tp->flag & FKSH)
- kshname = ap[0];
- else
- ap[0] = kshname;
- e->loc->argv = ap;
- for (i = 0; *ap++ != NULL; i++)
- ;
- e->loc->argc = i - 1;
- /*
- * ksh-style functions handle getopts sanely,
- * Bourne/POSIX functions are insane...
- */
- if (tp->flag & FKSH) {
- e->loc->flags |= BF_DOGETOPTS;
- e->loc->getopts_state = user_opt;
- getopts_reset(1);
- }
-
- old_xflag = Flag(FXTRACE) ? 1 : 0;
- change_xtrace((Flag(FXTRACEREC) ? old_xflag : 0) |
- ((tp->flag & TRACE) ? 1 : 0), false);
- old_inuse = tp->flag & FINUSE;
- tp->flag |= FINUSE;
-
- e->type = E_FUNC;
- if (!(i = kshsetjmp(e->jbuf))) {
- execute(tp->val.t, flags & XERROK, NULL);
- i = LRETURN;
- }
-
- kshname = old_kshname;
- change_xtrace(old_xflag, false);
- tp->flag = (tp->flag & ~FINUSE) | old_inuse;
-
- /*
- * Were we deleted while executing? If so, free the
- * execution tree. TODO: Unfortunately, the table entry
- * is never re-used until the lookup table is expanded.
- */
- if ((tp->flag & (FDELETE|FINUSE)) == FDELETE) {
- if (tp->flag & ALLOC) {
- tp->flag &= ~ALLOC;
- tfree(tp->val.t, tp->areap);
- }
- tp->flag = 0;
- }
- switch (i) {
- case LRETURN:
- case LERROR:
- rv = exstat & 0xFF;
- break;
- case LINTR:
- case LEXIT:
- case LLEAVE:
- case LSHELL:
- quitenv(NULL);
- unwind(i);
- /* NOTREACHED */
- default:
- quitenv(NULL);
- internal_errorf("%s %d", "CFUNC", i);
- }
- break;
- }
-
- /* executable command */
- case CEXEC:
- /* tracked alias */
- case CTALIAS:
- if (!(tp->flag&ISSET)) {
- if (tp->u2.errnov == ENOENT) {
- rv = 127;
- warningf(true, "%s: %s", cp, "not found");
- } else {
- rv = 126;
- warningf(true, "%s: %s: %s", cp, "can't execute",
- cstrerror(tp->u2.errnov));
- }
- break;
- }
-
- /* set $_ to programme's full path */
- /* setstr() can't fail here */
- setstr(typeset("_", LOCAL|EXPORT, 0, INTEGER, 0),
- tp->val.s, KSH_RETURN_ERROR);
-
- if (flags&XEXEC) {
- j_exit();
- if (!(flags&XBGND)
-#ifndef MKSH_UNEMPLOYED
- || Flag(FMONITOR)
-#endif
- ) {
- setexecsig(&sigtraps[SIGINT], SS_RESTORE_ORIG);
- setexecsig(&sigtraps[SIGQUIT], SS_RESTORE_ORIG);
- }
- }
-
- /* to fork we set up a TEXEC node and call execute */
- texec.type = TEXEC;
- /* for tprint */
- texec.left = t;
- texec.str = tp->val.s;
- texec.args = ap;
- rv = exchild(&texec, flags, xerrok, -1);
- break;
- }
- Leave:
- if (flags & XEXEC) {
- exstat = rv & 0xFF;
- unwind(LLEAVE);
- }
- return (rv);
-}
-
-static void
-scriptexec(struct op *tp, const char **ap)
-{
- const char *sh;
-#ifndef MKSH_SMALL
- unsigned char *cp;
- /* 64 == MAXINTERP in MirBSD <sys/param.h> */
- char buf[64];
- int fd;
-#endif
- union mksh_ccphack args, cap;
-
- sh = str_val(global("EXECSHELL"));
- if (sh && *sh)
- sh = search_path(sh, path, X_OK, NULL);
- if (!sh || !*sh)
- sh = MKSH_DEFAULT_EXECSHELL;
-
- *tp->args-- = tp->str;
-
-#ifndef MKSH_SMALL
- if ((fd = open(tp->str, O_RDONLY)) >= 0) {
- /* read first MAXINTERP octets from file */
- if (read(fd, buf, sizeof(buf)) <= 0)
- /* read error -> no good */
- buf[0] = '\0';
- close(fd);
-
- /* skip UTF-8 Byte Order Mark, if present */
- cp = (unsigned char *)buf;
- if ((cp[0] == 0xEF) && (cp[1] == 0xBB) && (cp[2] == 0xBF))
- cp += 3;
- /* save begin of shebang for later */
- fd = (char *)cp - buf; /* either 0 or (if BOM) 3 */
-
- /* scan for newline (or CR) or NUL _before_ end of buffer */
- while ((char *)cp < (buf + sizeof(buf)))
- if (*cp == '\0' || *cp == '\n' || *cp == '\r') {
- *cp = '\0';
- break;
- } else
- ++cp;
- /* if the shebang line is longer than MAXINTERP, bail out */
- if ((char *)cp >= (buf + sizeof(buf)))
- goto noshebang;
-
- /* restore begin of shebang position (buf+0 or buf+3) */
- cp = (unsigned char *)(buf + fd);
- /* bail out if read error (above) or no shebang */
- if ((cp[0] != '#') || (cp[1] != '!'))
- goto noshebang;
-
- cp += 2;
- /* skip whitespace before shell name */
- while (*cp == ' ' || *cp == '\t')
- ++cp;
- /* just whitespace on the line? */
- if (*cp == '\0')
- goto noshebang;
- /* no, we actually found an interpreter name */
- sh = (char *)cp;
- /* look for end of shell/interpreter name */
- while (*cp != ' ' && *cp != '\t' && *cp != '\0')
- ++cp;
- /* any arguments? */
- if (*cp) {
- *cp++ = '\0';
- /* skip spaces before arguments */
- while (*cp == ' ' || *cp == '\t')
- ++cp;
- /* pass it all in ONE argument (historic reasons) */
- if (*cp)
- *tp->args-- = (char *)cp;
- }
- noshebang:
- fd = buf[0] << 8 | buf[1];
- if ((fd == /* OMAGIC */ 0407) ||
- (fd == /* NMAGIC */ 0410) ||
- (fd == /* ZMAGIC */ 0413) ||
- (fd == /* QMAGIC */ 0314) ||
- (fd == /* ECOFF_I386 */ 0x4C01) ||
- (fd == /* ECOFF_M68K */ 0x0150 || fd == 0x5001) ||
- (fd == /* ECOFF_SH */ 0x0500 || fd == 0x0005) ||
- (fd == 0x7F45 && buf[2] == 'L' && buf[3] == 'F') ||
- (fd == /* "MZ" */ 0x4D5A) ||
- (fd == /* gzip */ 0x1F8B))
- errorf("%s: not executable: magic %04X", tp->str, fd);
- }
-#endif
- args.ro = tp->args;
- *args.ro = sh;
-
- cap.ro = ap;
- execve(args.rw[0], args.rw, cap.rw);
-
- /* report both the programme that was run and the bogus interpreter */
- errorf("%s: %s: %s", tp->str, sh, cstrerror(errno));
-}
-
-int
-shcomexec(const char **wp)
-{
- struct tbl *tp;
-
- tp = ktsearch(&builtins, *wp, hash(*wp));
- return (call_builtin(tp, wp, "shcomexec"));
-}
-
-/*
- * Search function tables for a function. If create set, a table entry
- * is created if none is found.
- */
-struct tbl *
-findfunc(const char *name, uint32_t h, bool create)
-{
- struct block *l;
- struct tbl *tp = NULL;
-
- for (l = e->loc; l; l = l->next) {
- tp = ktsearch(&l->funs, name, h);
- if (tp)
- break;
- if (!l->next && create) {
- tp = ktenter(&l->funs, name, h);
- tp->flag = DEFINED;
- tp->type = CFUNC;
- tp->val.t = NULL;
- break;
- }
- }
- return (tp);
-}
-
-/*
- * define function. Returns 1 if function is being undefined (t == 0) and
- * function did not exist, returns 0 otherwise.
- */
-int
-define(const char *name, struct op *t)
-{
- uint32_t nhash;
- struct tbl *tp;
- bool was_set = false;
-
- nhash = hash(name);
-
- if (t != NULL && !tobool(t->u.ksh_func)) {
- /* drop same-name aliases for POSIX functions */
- if ((tp = ktsearch(&aliases, name, nhash)))
- ktdelete(tp);
- }
-
- while (/* CONSTCOND */ 1) {
- tp = findfunc(name, nhash, true);
- /* because findfunc:create=true */
- mkssert(tp != NULL);
-
- if (tp->flag & ISSET)
- was_set = true;
- /*
- * If this function is currently being executed, we zap
- * this table entry so findfunc() won't see it
- */
- if (tp->flag & FINUSE) {
- tp->name[0] = '\0';
- /* ensure it won't be found */
- tp->flag &= ~DEFINED;
- tp->flag |= FDELETE;
- } else
- break;
- }
-
- if (tp->flag & ALLOC) {
- tp->flag &= ~(ISSET|ALLOC);
- tfree(tp->val.t, tp->areap);
- }
-
- if (t == NULL) {
- /* undefine */
- ktdelete(tp);
- return (was_set ? 0 : 1);
- }
-
- tp->val.t = tcopy(t->left, tp->areap);
- tp->flag |= (ISSET|ALLOC);
- if (t->u.ksh_func)
- tp->flag |= FKSH;
-
- return (0);
-}
-
-/*
- * add builtin
- */
-const char *
-builtin(const char *name, int (*func) (const char **))
-{
- struct tbl *tp;
- uint32_t flag = DEFINED;
-
- /* see if any flags should be set for this builtin */
- while (1) {
- if (*name == '=')
- /* command does variable assignment */
- flag |= KEEPASN;
- else if (*name == '*')
- /* POSIX special builtin */
- flag |= SPEC_BI;
- else
- break;
- name++;
- }
-
- tp = ktenter(&builtins, name, hash(name));
- tp->flag = flag;
- tp->type = CSHELL;
- tp->val.f = func;
-
- return (name);
-}
-
-/*
- * find command
- * either function, hashed command, or built-in (in that order)
- */
-struct tbl *
-findcom(const char *name, int flags)
-{
- static struct tbl temp;
- uint32_t h = hash(name);
- struct tbl *tp = NULL, *tbi;
- /* insert if not found */
- unsigned char insert = Flag(FTRACKALL);
- /* for function autoloading */
- char *fpath;
- union mksh_cchack npath;
-
- if (vstrchr(name, '/')) {
- insert = 0;
- /* prevent FPATH search below */
- flags &= ~FC_FUNC;
- goto Search;
- }
- tbi = (flags & FC_BI) ? ktsearch(&builtins, name, h) : NULL;
- /*
- * POSIX says special builtins first, then functions, then
- * regular builtins, then search path...
- */
- if ((flags & FC_SPECBI) && tbi && (tbi->flag & SPEC_BI))
- tp = tbi;
- if (!tp && (flags & FC_FUNC)) {
- tp = findfunc(name, h, false);
- if (tp && !(tp->flag & ISSET)) {
- if ((fpath = str_val(global("FPATH"))) == null) {
- tp->u.fpath = NULL;
- tp->u2.errnov = ENOENT;
- } else
- tp->u.fpath = search_path(name, fpath, R_OK,
- &tp->u2.errnov);
- }
- }
- if (!tp && (flags & FC_NORMBI) && tbi)
- tp = tbi;
- if (!tp && (flags & FC_PATH) && !(flags & FC_DEFPATH)) {
- tp = ktsearch(&taliases, name, h);
- if (tp && (tp->flag & ISSET) &&
- ksh_access(tp->val.s, X_OK) != 0) {
- if (tp->flag & ALLOC) {
- tp->flag &= ~ALLOC;
- afree(tp->val.s, APERM);
- }
- tp->flag &= ~ISSET;
- }
- }
-
- Search:
- if ((!tp || (tp->type == CTALIAS && !(tp->flag&ISSET))) &&
- (flags & FC_PATH)) {
- if (!tp) {
- if (insert && !(flags & FC_DEFPATH)) {
- tp = ktenter(&taliases, name, h);
- tp->type = CTALIAS;
- } else {
- tp = &temp;
- tp->type = CEXEC;
- }
- /* make ~ISSET */
- tp->flag = DEFINED;
- }
- npath.ro = search_path(name,
- (flags & FC_DEFPATH) ? def_path : path,
- X_OK, &tp->u2.errnov);
- if (npath.ro) {
- strdupx(tp->val.s, npath.ro, APERM);
- if (npath.ro != name)
- afree(npath.rw, ATEMP);
- tp->flag |= ISSET|ALLOC;
- } else if ((flags & FC_FUNC) &&
- (fpath = str_val(global("FPATH"))) != null &&
- (npath.ro = search_path(name, fpath, R_OK,
- &tp->u2.errnov)) != NULL) {
- /*
- * An undocumented feature of AT&T ksh is that
- * it searches FPATH if a command is not found,
- * even if the command hasn't been set up as an
- * autoloaded function (ie, no typeset -uf).
- */
- tp = &temp;
- tp->type = CFUNC;
- /* make ~ISSET */
- tp->flag = DEFINED;
- tp->u.fpath = npath.ro;
- }
- }
- return (tp);
-}
-
-/*
- * flush executable commands with relative paths
- * (just relative or all?)
- */
-void
-flushcom(bool all)
-{
- struct tbl *tp;
- struct tstate ts;
-
- for (ktwalk(&ts, &taliases); (tp = ktnext(&ts)) != NULL; )
- if ((tp->flag&ISSET) && (all || tp->val.s[0] != '/')) {
- if (tp->flag&ALLOC) {
- tp->flag &= ~(ALLOC|ISSET);
- afree(tp->val.s, APERM);
- }
- tp->flag &= ~ISSET;
- }
-}
-
-/* check if path is something we want to find */
-static int
-search_access(const char *fn, int mode)
-{
- struct stat sb;
-
- if (stat(fn, &sb) < 0)
- /* file does not exist */
- return (ENOENT);
- /* LINTED use of access */
- if (access(fn, mode) < 0)
- /* file exists, but we can't access it */
- return (errno);
- if (mode == X_OK && (!S_ISREG(sb.st_mode) ||
- !(sb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH))))
- /* access(2) may say root can execute everything */
- return (S_ISDIR(sb.st_mode) ? EISDIR : EACCES);
- return (0);
-}
-
-/*
- * search for command with PATH
- */
-const char *
-search_path(const char *name, const char *lpath,
- /* R_OK or X_OK */
- int mode,
- /* set if candidate found, but not suitable */
- int *errnop)
-{
- const char *sp, *p;
- char *xp;
- XString xs;
- size_t namelen;
- int ec = 0, ev;
-
- if (vstrchr(name, '/')) {
- if ((ec = search_access(name, mode)) == 0) {
- search_path_ok:
- if (errnop)
- *errnop = 0;
- return (name);
- }
- goto search_path_err;
- }
-
- namelen = strlen(name) + 1;
- Xinit(xs, xp, 128, ATEMP);
-
- sp = lpath;
- while (sp != NULL) {
- xp = Xstring(xs, xp);
- if (!(p = cstrchr(sp, ':')))
- p = sp + strlen(sp);
- if (p != sp) {
- XcheckN(xs, xp, p - sp);
- memcpy(xp, sp, p - sp);
- xp += p - sp;
- *xp++ = '/';
- }
- sp = p;
- XcheckN(xs, xp, namelen);
- memcpy(xp, name, namelen);
- if ((ev = search_access(Xstring(xs, xp), mode)) == 0) {
- name = Xclose(xs, xp + namelen);
- goto search_path_ok;
- }
- /* accumulate non-ENOENT errors only */
- if (ev != ENOENT && ec == 0)
- ec = ev;
- if (*sp++ == '\0')
- sp = NULL;
- }
- Xfree(xs, xp);
- search_path_err:
- if (errnop)
- *errnop = ec ? ec : ENOENT;
- return (NULL);
-}
-
-static int
-call_builtin(struct tbl *tp, const char **wp, const char *where)
-{
- int rv;
-
- if (!tp)
- internal_errorf("%s: %s", where, wp[0]);
- builtin_argv0 = wp[0];
- builtin_flag = tp->flag;
- shf_reopen(1, SHF_WR, shl_stdout);
- shl_stdout_ok = true;
- ksh_getopt_reset(&builtin_opt, GF_ERROR);
- rv = (*tp->val.f)(wp);
- shf_flush(shl_stdout);
- shl_stdout_ok = false;
- builtin_flag = 0;
- builtin_argv0 = NULL;
- return (rv);
-}
-
-/*
- * set up redirection, saving old fds in e->savefd
- */
-static int
-iosetup(struct ioword *iop, struct tbl *tp)
-{
- int u = -1;
- char *cp = iop->name;
- int iotype = iop->flag & IOTYPE;
- bool do_open = true, do_close = false;
- int flags = 0;
- struct ioword iotmp;
- struct stat statb;
-
- if (iotype != IOHERE)
- cp = evalonestr(cp, DOTILDE|(Flag(FTALKING_I) ? DOGLOB : 0));
-
- /* Used for tracing and error messages to print expanded cp */
- iotmp = *iop;
- iotmp.name = (iotype == IOHERE) ? NULL : cp;
- iotmp.flag |= IONAMEXP;
-
- if (Flag(FXTRACE)) {
- change_xtrace(2, false);
- fptreef(shl_xtrace, 0, "%R", &iotmp);
- change_xtrace(1, false);
- }
-
- switch (iotype) {
- case IOREAD:
- flags = O_RDONLY;
- break;
-
- case IOCAT:
- flags = O_WRONLY | O_APPEND | O_CREAT;
- break;
-
- case IOWRITE:
- flags = O_WRONLY | O_CREAT | O_TRUNC;
- /*
- * The stat() is here to allow redirections to
- * things like /dev/null without error.
- */
- if (Flag(FNOCLOBBER) && !(iop->flag & IOCLOB) &&
- (stat(cp, &statb) < 0 || S_ISREG(statb.st_mode)))
- flags |= O_EXCL;
- break;
-
- case IORDWR:
- flags = O_RDWR | O_CREAT;
- break;
-
- case IOHERE:
- do_open = false;
- /* herein() returns -2 if error has been printed */
- u = herein(iop, NULL);
- /* cp may have wrong name */
- break;
-
- case IODUP: {
- const char *emsg;
-
- do_open = false;
- if (*cp == '-' && !cp[1]) {
- /* prevent error return below */
- u = 1009;
- do_close = true;
- } else if ((u = check_fd(cp,
- X_OK | ((iop->flag & IORDUP) ? R_OK : W_OK),
- &emsg)) < 0) {
- char *sp;
-
- warningf(true, "%s: %s",
- (sp = snptreef(NULL, 32, "%R", &iotmp)), emsg);
- afree(sp, ATEMP);
- return (-1);
- }
- if (u == iop->unit)
- /* "dup from" == "dup to" */
- return (0);
- break;
- }
- }
-
- if (do_open) {
- if (Flag(FRESTRICTED) && (flags & O_CREAT)) {
- warningf(true, "%s: %s", cp, "restricted");
- return (-1);
- }
- u = open(cp, flags, 0666);
- }
- if (u < 0) {
- /* herein() may already have printed message */
- if (u == -1) {
- u = errno;
- warningf(true, "can't %s %s: %s",
- iotype == IODUP ? "dup" :
- (iotype == IOREAD || iotype == IOHERE) ?
- "open" : "create", cp, cstrerror(u));
- }
- return (-1);
- }
- /* Do not save if it has already been redirected (i.e. "cat >x >y"). */
- if (e->savefd[iop->unit] == 0) {
- /* If these are the same, it means unit was previously closed */
- if (u == iop->unit)
- e->savefd[iop->unit] = -1;
- else
- /*
- * c_exec() assumes e->savefd[fd] set for any
- * redirections. Ask savefd() not to close iop->unit;
- * this allows error messages to be seen if iop->unit
- * is 2; also means we can't lose the fd (eg, both
- * dup2 below and dup2 in restfd() failing).
- */
- e->savefd[iop->unit] = savefd(iop->unit);
- }
-
- if (do_close)
- close(iop->unit);
- else if (u != iop->unit) {
- if (ksh_dup2(u, iop->unit, true) < 0) {
- int eno;
- char *sp;
-
- eno = errno;
- warningf(true, "%s %s %s",
- "can't finish (dup) redirection",
- (sp = snptreef(NULL, 32, "%R", &iotmp)),
- cstrerror(eno));
- afree(sp, ATEMP);
- if (iotype != IODUP)
- close(u);
- return (-1);
- }
- if (iotype != IODUP)
- close(u);
- /*
- * Touching any co-process fd in an empty exec
- * causes the shell to close its copies
- */
- else if (tp && tp->type == CSHELL && tp->val.f == c_exec) {
- if (iop->flag & IORDUP)
- /* possible exec <&p */
- coproc_read_close(u);
- else
- /* possible exec >&p */
- coproc_write_close(u);
- }
- }
- if (u == 2)
- /* Clear any write errors */
- shf_reopen(2, SHF_WR, shl_out);
- return (0);
-}
-
-/*
- * Process here documents by providing the content, either as
- * result (globally allocated) string or in a temp file; if
- * unquoted, the string is expanded first.
- */
-static int
-hereinval(const char *content, int sub, char **resbuf, struct shf *shf)
-{
- const char * volatile ccp = content;
- struct source *s, *osource;
-
- osource = source;
- newenv(E_ERRH);
- if (kshsetjmp(e->jbuf)) {
- source = osource;
- quitenv(shf);
- /* special to iosetup(): don't print error */
- return (-2);
- }
- if (sub) {
- /* do substitutions on the content of heredoc */
- s = pushs(SSTRING, ATEMP);
- s->start = s->str = ccp;
- source = s;
- if (yylex(sub) != LWORD)
- internal_errorf("%s: %s", "herein", "yylex");
- source = osource;
- ccp = evalstr(yylval.cp, 0);
- }
-
- if (resbuf == NULL)
- shf_puts(ccp, shf);
- else
- strdupx(*resbuf, ccp, APERM);
-
- quitenv(NULL);
- return (0);
-}
-
-static int
-herein(struct ioword *iop, char **resbuf)
-{
- int fd = -1;
- struct shf *shf;
- struct temp *h;
- int i;
-
- /* ksh -c 'cat << EOF' can cause this... */
- if (iop->heredoc == NULL) {
- warningf(true, "%s missing", "here document");
- /* special to iosetup(): don't print error */
- return (-2);
- }
-
- /* lexer substitution flags */
- i = (iop->flag & IOEVAL) ? (ONEWORD | HEREDOC) : 0;
-
- /* skip all the fd setup if we just want the value */
- if (resbuf != NULL)
- return (hereinval(iop->heredoc, i, resbuf, NULL));
-
- /*
- * Create temp file to hold content (done before newenv
- * so temp doesn't get removed too soon).
- */
- h = maketemp(ATEMP, TT_HEREDOC_EXP, &e->temps);
- if (!(shf = h->shf) || (fd = open(h->tffn, O_RDONLY, 0)) < 0) {
- i = errno;
- warningf(true, "can't %s temporary file %s: %s",
- !shf ? "create" : "open", h->tffn, cstrerror(i));
- if (shf)
- shf_close(shf);
- /* special to iosetup(): don't print error */
- return (-2);
- }
-
- if (hereinval(iop->heredoc, i, NULL, shf) == -2) {
- close(fd);
- /* special to iosetup(): don't print error */
- return (-2);
- }
-
- if (shf_close(shf) == EOF) {
- i = errno;
- close(fd);
- warningf(true, "can't %s temporary file %s: %s",
- "write", h->tffn, cstrerror(i));
- /* special to iosetup(): don't print error */
- return (-2);
- }
-
- return (fd);
-}
-
-/*
- * ksh special - the select command processing section
- * print the args in column form - assuming that we can
- */
-static const char *
-do_selectargs(const char **ap, bool print_menu)
-{
- static const char *read_args[] = {
- "read", "-r", "REPLY", NULL
- };
- char *s;
- int i, argct;
-
- for (argct = 0; ap[argct]; argct++)
- ;
- while (/* CONSTCOND */ 1) {
- /*-
- * Menu is printed if
- * - this is the first time around the select loop
- * - the user enters a blank line
- * - the REPLY parameter is empty
- */
- if (print_menu || !*str_val(global("REPLY")))
- pr_menu(ap);
- shellf("%s", str_val(global("PS3")));
- if (call_builtin(findcom("read", FC_BI), read_args, Tselect))
- return (NULL);
- s = str_val(global("REPLY"));
- if (*s && getn(s, &i))
- return ((i >= 1 && i <= argct) ? ap[i - 1] : null);
- print_menu = true;
- }
-}
-
-struct select_menu_info {
- const char * const *args;
- int num_width;
-};
-
-/* format a single select menu item */
-static char *
-select_fmt_entry(char *buf, size_t buflen, unsigned int i, const void *arg)
-{
- const struct select_menu_info *smi =
- (const struct select_menu_info *)arg;
-
- shf_snprintf(buf, buflen, "%*u) %s",
- smi->num_width, i + 1, smi->args[i]);
- return (buf);
-}
-
-/*
- * print a select style menu
- */
-void
-pr_menu(const char * const *ap)
-{
- struct select_menu_info smi;
- const char * const *pp;
- size_t acols = 0, aocts = 0, i;
- unsigned int n;
-
- /*
- * width/column calculations were done once and saved, but this
- * means select can't be used recursively so we re-calculate
- * each time (could save in a structure that is returned, but
- * it's probably not worth the bother)
- */
-
- /*
- * get dimensions of the list
- */
- for (n = 0, pp = ap; *pp; n++, pp++) {
- i = strlen(*pp);
- if (i > aocts)
- aocts = i;
- i = utf_mbswidth(*pp);
- if (i > acols)
- acols = i;
- }
-
- /*
- * we will print an index of the form "%d) " in front of
- * each entry, so get the maximum width of this
- */
- for (i = n, smi.num_width = 1; i >= 10; i /= 10)
- smi.num_width++;
-
- smi.args = ap;
- print_columns(shl_out, n, select_fmt_entry, (void *)&smi,
- smi.num_width + 2 + aocts, smi.num_width + 2 + acols,
- true);
-}
-
-static char *
-plain_fmt_entry(char *buf, size_t buflen, unsigned int i, const void *arg)
-{
- strlcpy(buf, ((const char * const *)arg)[i], buflen);
- return (buf);
-}
-
-void
-pr_list(char * const *ap)
-{
- size_t acols = 0, aocts = 0, i;
- unsigned int n;
- char * const *pp;
-
- for (n = 0, pp = ap; *pp; n++, pp++) {
- i = strlen(*pp);
- if (i > aocts)
- aocts = i;
- i = utf_mbswidth(*pp);
- if (i > acols)
- acols = i;
- }
-
- print_columns(shl_out, n, plain_fmt_entry, (const void *)ap,
- aocts, acols, false);
-}
-
-/*
- * [[ ... ]] evaluation routines
- */
-
-/*
- * Test if the current token is a whatever. Accepts the current token if
- * it is. Returns 0 if it is not, non-zero if it is (in the case of
- * TM_UNOP and TM_BINOP, the returned value is a Test_op).
- */
-static Test_op
-dbteste_isa(Test_env *te, Test_meta meta)
-{
- Test_op ret = TO_NONOP;
- int uqword;
- const char *p;
-
- if (!*te->pos.wp)
- return (meta == TM_END ? TO_NONNULL : TO_NONOP);
-
- /* unquoted word? */
- for (p = *te->pos.wp; *p == CHAR; p += 2)
- ;
- uqword = *p == EOS;
-
- if (meta == TM_UNOP || meta == TM_BINOP) {
- if (uqword) {
- /* longer than the longest operator */
- char buf[8];
- char *q = buf;
-
- p = *te->pos.wp;
- while (*p++ == CHAR &&
- (size_t)(q - buf) < sizeof(buf) - 1)
- *q++ = *p++;
- *q = '\0';
- ret = test_isop(meta, buf);
- }
- } else if (meta == TM_END)
- ret = TO_NONOP;
- else
- ret = (uqword && !strcmp(*te->pos.wp,
- dbtest_tokens[(int)meta])) ? TO_NONNULL : TO_NONOP;
-
- /* Accept the token? */
- if (ret != TO_NONOP)
- te->pos.wp++;
-
- return (ret);
-}
-
-static const char *
-dbteste_getopnd(Test_env *te, Test_op op, bool do_eval)
-{
- const char *s = *te->pos.wp;
-
- if (!s)
- return (NULL);
-
- te->pos.wp++;
-
- if (!do_eval)
- return (null);
-
- if (op == TO_STEQL || op == TO_STNEQ)
- s = evalstr(s, DOTILDE | DOPAT);
- else
- s = evalstr(s, DOTILDE);
-
- return (s);
-}
-
-static void
-dbteste_error(Test_env *te, int offset, const char *msg)
-{
- te->flags |= TEF_ERROR;
- internal_warningf("dbteste_error: %s (offset %d)", msg, offset);
-}
Copied: vendor/MirOS/mksh/R50/exec.c (from rev 6707, vendor/MirOS/mksh/dist/exec.c)
===================================================================
--- vendor/MirOS/mksh/R50/exec.c (rev 0)
+++ vendor/MirOS/mksh/R50/exec.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1734 @@
+/* $OpenBSD: exec.c,v 1.50 2013/06/10 21:09:27 millert Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+
+__RCSID("$MirOS: src/bin/mksh/exec.c,v 1.132 2014/06/24 18:38:31 tg Exp $");
+
+#ifndef MKSH_DEFAULT_EXECSHELL
+#define MKSH_DEFAULT_EXECSHELL "/bin/sh"
+#endif
+
+static int comexec(struct op *, struct tbl * volatile, const char **,
+ int volatile, volatile int *);
+static void scriptexec(struct op *, const char **) MKSH_A_NORETURN;
+static int call_builtin(struct tbl *, const char **, const char *);
+static int iosetup(struct ioword *, struct tbl *);
+static int herein(struct ioword *, char **);
+static const char *do_selectargs(const char **, bool);
+static Test_op dbteste_isa(Test_env *, Test_meta);
+static const char *dbteste_getopnd(Test_env *, Test_op, bool);
+static void dbteste_error(Test_env *, int, const char *);
+static int search_access(const char *, int);
+/* XXX: horrible kludge to fit within the framework */
+static char *plain_fmt_entry(char *, size_t, unsigned int, const void *);
+static char *select_fmt_entry(char *, size_t, unsigned int, const void *);
+
+/*
+ * execute command tree
+ */
+int
+execute(struct op * volatile t,
+ /* if XEXEC don't fork */
+ volatile int flags,
+ volatile int * volatile xerrok)
+{
+ int i;
+ volatile int rv = 0, dummy = 0;
+ int pv[2];
+ const char ** volatile ap = NULL;
+ char ** volatile up;
+ const char *s, *ccp;
+ struct ioword **iowp;
+ struct tbl *tp = NULL;
+ char *cp;
+
+ if (t == NULL)
+ return (0);
+
+ /* Caller doesn't care if XERROK should propagate. */
+ if (xerrok == NULL)
+ xerrok = &dummy;
+
+ if ((flags&XFORK) && !(flags&XEXEC) && t->type != TPIPE)
+ /* run in sub-process */
+ return (exchild(t, flags & ~XTIME, xerrok, -1));
+
+ newenv(E_EXEC);
+ if (trap)
+ runtraps(0);
+
+ /* we want to run an executable, do some variance checks */
+ if (t->type == TCOM) {
+ /* check if this is 'var=<<EOF' */
+ if (
+ /* we have zero arguments, i.e. no programme to run */
+ t->args[0] == NULL &&
+ /* we have exactly one variable assignment */
+ t->vars[0] != NULL && t->vars[1] == NULL &&
+ /* we have exactly one I/O redirection */
+ t->ioact != NULL && t->ioact[0] != NULL &&
+ t->ioact[1] == NULL &&
+ /* of type "here document" (or "here string") */
+ (t->ioact[0]->flag & IOTYPE) == IOHERE &&
+ /* the variable assignment begins with a valid varname */
+ (ccp = skip_wdvarname(t->vars[0], true)) != t->vars[0] &&
+ /* and has no right-hand side (i.e. "varname=") */
+ ccp[0] == CHAR && ccp[1] == '=' && ccp[2] == EOS &&
+ /* plus we can have a here document content */
+ herein(t->ioact[0], &cp) == 0 && cp && *cp) {
+ char *sp = cp, *dp;
+ size_t n = ccp - t->vars[0] + 2, z;
+
+ /* drop redirection (will be garbage collected) */
+ t->ioact = NULL;
+
+ /* set variable to its expanded value */
+ z = strlen(cp) + 1;
+ if (notoktomul(z, 2) || notoktoadd(z * 2, n))
+ internal_errorf(Toomem, (size_t)-1);
+ dp = alloc(z * 2 + n, ATEMP);
+ memcpy(dp, t->vars[0], n);
+ t->vars[0] = dp;
+ dp += n;
+ while (*sp) {
+ *dp++ = QCHAR;
+ *dp++ = *sp++;
+ }
+ *dp = EOS;
+ /* free the expanded value */
+ afree(cp, APERM);
+ }
+
+ /*
+ * Clear subst_exstat before argument expansion. Used by
+ * null commands (see comexec() and c_eval()) and by c_set().
+ */
+ subst_exstat = 0;
+
+ /* for $LINENO */
+ current_lineno = t->lineno;
+
+ /*
+ * POSIX says expand command words first, then redirections,
+ * and assignments last..
+ */
+ up = eval(t->args, t->u.evalflags | DOBLANK | DOGLOB | DOTILDE);
+ if (flags & XTIME)
+ /* Allow option parsing (bizarre, but POSIX) */
+ timex_hook(t, &up);
+ ap = (const char **)up;
+ if (ap[0])
+ tp = findcom(ap[0], FC_BI|FC_FUNC);
+ }
+ flags &= ~XTIME;
+
+ if (t->ioact != NULL || t->type == TPIPE || t->type == TCOPROC) {
+ e->savefd = alloc2(NUFILE, sizeof(short), ATEMP);
+ /* initialise to not redirected */
+ memset(e->savefd, 0, NUFILE * sizeof(short));
+ }
+
+ /* mark for replacement later (unless TPIPE) */
+ vp_pipest->flag |= INT_L;
+
+ /* do redirection, to be restored in quitenv() */
+ if (t->ioact != NULL)
+ for (iowp = t->ioact; *iowp != NULL; iowp++) {
+ if (iosetup(*iowp, tp) < 0) {
+ exstat = rv = 1;
+ /*
+ * Redirection failures for special commands
+ * cause (non-interactive) shell to exit.
+ */
+ if (tp && tp->type == CSHELL &&
+ (tp->flag & SPEC_BI))
+ errorfz();
+ /* Deal with FERREXIT, quitenv(), etc. */
+ goto Break;
+ }
+ }
+
+ switch (t->type) {
+ case TCOM:
+ rv = comexec(t, tp, (const char **)ap, flags, xerrok);
+ break;
+
+ case TPAREN:
+ rv = execute(t->left, flags | XFORK, xerrok);
+ break;
+
+ case TPIPE:
+ flags |= XFORK;
+ flags &= ~XEXEC;
+ e->savefd[0] = savefd(0);
+ e->savefd[1] = savefd(1);
+ while (t->type == TPIPE) {
+ openpipe(pv);
+ /* stdout of curr */
+ ksh_dup2(pv[1], 1, false);
+ /**
+ * Let exchild() close pv[0] in child
+ * (if this isn't done, commands like
+ * (: ; cat /etc/termcap) | sleep 1
+ * will hang forever).
+ */
+ exchild(t->left, flags | XPIPEO | XCCLOSE,
+ NULL, pv[0]);
+ /* stdin of next */
+ ksh_dup2(pv[0], 0, false);
+ closepipe(pv);
+ flags |= XPIPEI;
+ t = t->right;
+ }
+ /* stdout of last */
+ restfd(1, e->savefd[1]);
+ /* no need to re-restore this */
+ e->savefd[1] = 0;
+ /* Let exchild() close 0 in parent, after fork, before wait */
+ i = exchild(t, flags | XPCLOSE | XPIPEST, xerrok, 0);
+ if (!(flags&XBGND) && !(flags&XXCOM))
+ rv = i;
+ break;
+
+ case TLIST:
+ while (t->type == TLIST) {
+ execute(t->left, flags & XERROK, NULL);
+ t = t->right;
+ }
+ rv = execute(t, flags & XERROK, xerrok);
+ break;
+
+ case TCOPROC: {
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigset_t omask;
+
+ /*
+ * Block sigchild as we are using things changed in the
+ * signal handler
+ */
+ sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
+ e->type = E_ERRH;
+ if ((i = kshsetjmp(e->jbuf))) {
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+ quitenv(NULL);
+ unwind(i);
+ /* NOTREACHED */
+ }
+#endif
+ /* Already have a (live) co-process? */
+ if (coproc.job && coproc.write >= 0)
+ errorf("coprocess already exists");
+
+ /* Can we re-use the existing co-process pipe? */
+ coproc_cleanup(true);
+
+ /* do this before opening pipes, in case these fail */
+ e->savefd[0] = savefd(0);
+ e->savefd[1] = savefd(1);
+
+ openpipe(pv);
+ if (pv[0] != 0) {
+ ksh_dup2(pv[0], 0, false);
+ close(pv[0]);
+ }
+ coproc.write = pv[1];
+ coproc.job = NULL;
+
+ if (coproc.readw >= 0)
+ ksh_dup2(coproc.readw, 1, false);
+ else {
+ openpipe(pv);
+ coproc.read = pv[0];
+ ksh_dup2(pv[1], 1, false);
+ /* closed before first read */
+ coproc.readw = pv[1];
+ coproc.njobs = 0;
+ /* create new coprocess id */
+ ++coproc.id;
+ }
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+ /* no more need for error handler */
+ e->type = E_EXEC;
+#endif
+
+ /*
+ * exchild() closes coproc.* in child after fork,
+ * will also increment coproc.njobs when the
+ * job is actually created.
+ */
+ flags &= ~XEXEC;
+ exchild(t->left, flags | XBGND | XFORK | XCOPROC | XCCLOSE,
+ NULL, coproc.readw);
+ break;
+ }
+
+ case TASYNC:
+ /*
+ * XXX non-optimal, I think - "(foo &)", forks for (),
+ * forks again for async... parent should optimise
+ * this to "foo &"...
+ */
+ rv = execute(t->left, (flags&~XEXEC)|XBGND|XFORK, xerrok);
+ break;
+
+ case TOR:
+ case TAND:
+ rv = execute(t->left, XERROK, xerrok);
+ if ((rv == 0) == (t->type == TAND))
+ rv = execute(t->right, flags & XERROK, xerrok);
+ else {
+ flags |= XERROK;
+ if (xerrok)
+ *xerrok = 1;
+ }
+ break;
+
+ case TBANG:
+ rv = !execute(t->right, XERROK, xerrok);
+ flags |= XERROK;
+ if (xerrok)
+ *xerrok = 1;
+ break;
+
+ case TDBRACKET: {
+ Test_env te;
+
+ te.flags = TEF_DBRACKET;
+ te.pos.wp = t->args;
+ te.isa = dbteste_isa;
+ te.getopnd = dbteste_getopnd;
+ te.eval = test_eval;
+ te.error = dbteste_error;
+
+ rv = test_parse(&te);
+ break;
+ }
+
+ case TFOR:
+ case TSELECT: {
+ volatile bool is_first = true;
+
+ ap = (t->vars == NULL) ? e->loc->argv + 1 :
+ (const char **)eval((const char **)t->vars,
+ DOBLANK | DOGLOB | DOTILDE);
+ e->type = E_LOOP;
+ while ((i = kshsetjmp(e->jbuf))) {
+ if ((e->flags&EF_BRKCONT_PASS) ||
+ (i != LBREAK && i != LCONTIN)) {
+ quitenv(NULL);
+ unwind(i);
+ } else if (i == LBREAK) {
+ rv = 0;
+ goto Break;
+ }
+ }
+ /* in case of a continue */
+ rv = 0;
+ if (t->type == TFOR) {
+ while (*ap != NULL) {
+ setstr(global(t->str), *ap++, KSH_UNWIND_ERROR);
+ rv = execute(t->left, flags & XERROK, xerrok);
+ }
+ } else {
+ /* TSELECT */
+ for (;;) {
+ if (!(ccp = do_selectargs(ap, is_first))) {
+ rv = 1;
+ break;
+ }
+ is_first = false;
+ setstr(global(t->str), ccp, KSH_UNWIND_ERROR);
+ execute(t->left, flags & XERROK, xerrok);
+ }
+ }
+ break;
+ }
+
+ case TWHILE:
+ case TUNTIL:
+ e->type = E_LOOP;
+ while ((i = kshsetjmp(e->jbuf))) {
+ if ((e->flags&EF_BRKCONT_PASS) ||
+ (i != LBREAK && i != LCONTIN)) {
+ quitenv(NULL);
+ unwind(i);
+ } else if (i == LBREAK) {
+ rv = 0;
+ goto Break;
+ }
+ }
+ /* in case of a continue */
+ rv = 0;
+ while ((execute(t->left, XERROK, NULL) == 0) ==
+ (t->type == TWHILE))
+ rv = execute(t->right, flags & XERROK, xerrok);
+ break;
+
+ case TIF:
+ case TELIF:
+ if (t->right == NULL)
+ /* should be error */
+ break;
+ rv = execute(t->left, XERROK, NULL) == 0 ?
+ execute(t->right->left, flags & XERROK, xerrok) :
+ execute(t->right->right, flags & XERROK, xerrok);
+ break;
+
+ case TCASE:
+ i = 0;
+ ccp = evalstr(t->str, DOTILDE);
+ for (t = t->left; t != NULL && t->type == TPAT; t = t->right) {
+ for (ap = (const char **)t->vars; *ap; ap++) {
+ if (i || ((s = evalstr(*ap, DOTILDE|DOPAT)) &&
+ gmatchx(ccp, s, false))) {
+ rv = execute(t->left, flags & XERROK,
+ xerrok);
+ i = 0;
+ switch (t->u.charflag) {
+ case '&':
+ i = 1;
+ /* FALLTHROUGH */
+ case '|':
+ goto TCASE_next;
+ }
+ goto TCASE_out;
+ }
+ }
+ i = 0;
+ TCASE_next:
+ /* empty */;
+ }
+ TCASE_out:
+ break;
+
+ case TBRACE:
+ rv = execute(t->left, flags & XERROK, xerrok);
+ break;
+
+ case TFUNCT:
+ rv = define(t->str, t);
+ break;
+
+ case TTIME:
+ /*
+ * Clear XEXEC so nested execute() call doesn't exit
+ * (allows "ls -l | time grep foo").
+ */
+ rv = timex(t, flags & ~XEXEC, xerrok);
+ break;
+
+ case TEXEC:
+ /* an eval'd TCOM */
+ s = t->args[0];
+ up = makenv();
+ restoresigs();
+ cleanup_proc_env();
+ {
+ union mksh_ccphack cargs;
+
+ cargs.ro = t->args;
+ execve(t->str, cargs.rw, up);
+ rv = errno;
+ }
+ if (rv == ENOEXEC)
+ scriptexec(t, (const char **)up);
+ else
+ errorf("%s: %s", s, cstrerror(rv));
+ }
+ Break:
+ exstat = rv & 0xFF;
+ if (vp_pipest->flag & INT_L) {
+ unset(vp_pipest, 1);
+ vp_pipest->flag = DEFINED | ISSET | INTEGER | RDONLY |
+ ARRAY | INT_U | INT_L;
+ vp_pipest->val.i = rv;
+ }
+
+ /* restores IO */
+ quitenv(NULL);
+ if ((flags&XEXEC))
+ /* exit child */
+ unwind(LEXIT);
+ if (rv != 0 && !(flags & XERROK) &&
+ (xerrok == NULL || !*xerrok)) {
+ if (Flag(FERREXIT) & 0x80) {
+ /* inside eval */
+ Flag(FERREXIT) = 0;
+ } else {
+ trapsig(ksh_SIGERR);
+ if (Flag(FERREXIT))
+ unwind(LERROR);
+ }
+ }
+ return (rv);
+}
+
+/*
+ * execute simple command
+ */
+
+static int
+comexec(struct op *t, struct tbl * volatile tp, const char **ap,
+ volatile int flags, volatile int *xerrok)
+{
+ int i;
+ volatile int rv = 0;
+ const char *cp;
+ const char **lastp;
+ /* Must be static (XXX but why?) */
+ static struct op texec;
+ int type_flags;
+ bool keepasn_ok;
+ int fcflags = FC_BI|FC_FUNC|FC_PATH;
+ bool bourne_function_call = false;
+ struct block *l_expand, *l_assign;
+
+ /*
+ * snag the last argument for $_ XXX not the same as AT&T ksh,
+ * which only seems to set $_ after a newline (but not in
+ * functions/dot scripts, but in interactive and script) -
+ * perhaps save last arg here and set it in shell()?.
+ */
+ if (Flag(FTALKING) && *(lastp = ap)) {
+ while (*++lastp)
+ ;
+ /* setstr() can't fail here */
+ setstr(typeset("_", LOCAL, 0, INTEGER, 0), *--lastp,
+ KSH_RETURN_ERROR);
+ }
+
+ /**
+ * Deal with the shell builtins builtin, exec and command since
+ * they can be followed by other commands. This must be done before
+ * we know if we should create a local block which must be done
+ * before we can do a path search (in case the assignments change
+ * PATH).
+ * Odd cases:
+ * FOO=bar exec >/dev/null FOO is kept but not exported
+ * FOO=bar exec foobar FOO is exported
+ * FOO=bar command exec >/dev/null FOO is neither kept nor exported
+ * FOO=bar command FOO is neither kept nor exported
+ * PATH=... foobar use new PATH in foobar search
+ */
+ keepasn_ok = true;
+ while (tp && tp->type == CSHELL) {
+ /* undo effects of command */
+ fcflags = FC_BI|FC_FUNC|FC_PATH;
+ if (tp->val.f == c_builtin) {
+ if ((cp = *++ap) == NULL ||
+ (!strcmp(cp, "--") && (cp = *++ap) == NULL)) {
+ tp = NULL;
+ break;
+ }
+ if ((tp = findcom(cp, FC_BI)) == NULL)
+ errorf("%s: %s: %s", Tbuiltin, cp, "not a builtin");
+ continue;
+ } else if (tp->val.f == c_exec) {
+ if (ap[1] == NULL)
+ break;
+ ap++;
+ flags |= XEXEC;
+ } else if (tp->val.f == c_command) {
+ int optc, saw_p = 0;
+
+ /*
+ * Ugly dealing with options in two places (here
+ * and in c_command(), but such is life)
+ */
+ ksh_getopt_reset(&builtin_opt, 0);
+ while ((optc = ksh_getopt(ap, &builtin_opt, ":p")) == 'p')
+ saw_p = 1;
+ if (optc != EOF)
+ /* command -vV or something */
+ break;
+ /* don't look for functions */
+ fcflags = FC_BI|FC_PATH;
+ if (saw_p) {
+ if (Flag(FRESTRICTED)) {
+ warningf(true, "%s: %s",
+ "command -p", "restricted");
+ rv = 1;
+ goto Leave;
+ }
+ fcflags |= FC_DEFPATH;
+ }
+ ap += builtin_opt.optind;
+ /*
+ * POSIX says special builtins lose their status
+ * if accessed using command.
+ */
+ keepasn_ok = false;
+ if (!ap[0]) {
+ /* ensure command with no args exits with 0 */
+ subst_exstat = 0;
+ break;
+ }
+#ifndef MKSH_NO_EXTERNAL_CAT
+ } else if (tp->val.f == c_cat) {
+ /*
+ * if we have any flags, do not use the builtin
+ * in theory, we could allow -u, but that would
+ * mean to use ksh_getopt here and possibly ad-
+ * ded complexity and more code and isn't worth
+ * additional hassle (and the builtin must call
+ * ksh_getopt already but can't come back here)
+ */
+ if (ap[1] && ap[1][0] == '-' && ap[1][1] != '\0' &&
+ /* argument, begins with -, is not - or -- */
+ (ap[1][1] != '-' || ap[1][2] != '\0'))
+ /* don't look for builtins or functions */
+ fcflags = FC_PATH;
+ else
+ /* go on, use the builtin */
+ break;
+#endif
+ } else if (tp->val.f == c_trap) {
+ t->u.evalflags &= ~DOTCOMEXEC;
+ break;
+ } else
+ break;
+ tp = findcom(ap[0], fcflags & (FC_BI|FC_FUNC));
+ }
+ if (t->u.evalflags & DOTCOMEXEC)
+ flags |= XEXEC;
+ l_expand = e->loc;
+ if (keepasn_ok && (!ap[0] || (tp && (tp->flag & KEEPASN))))
+ type_flags = 0;
+ else {
+ /* create new variable/function block */
+ newblock();
+ /* ksh functions don't keep assignments, POSIX functions do. */
+ if (keepasn_ok && tp && tp->type == CFUNC &&
+ !(tp->flag & FKSH)) {
+ bourne_function_call = true;
+ type_flags = EXPORT;
+ } else
+ type_flags = LOCAL|LOCAL_COPY|EXPORT;
+ }
+ l_assign = e->loc;
+ if (Flag(FEXPORT))
+ type_flags |= EXPORT;
+ if (Flag(FXTRACE))
+ change_xtrace(2, false);
+ for (i = 0; t->vars[i]; i++) {
+ /* do NOT lookup in the new var/fn block just created */
+ e->loc = l_expand;
+ cp = evalstr(t->vars[i], DOASNTILDE);
+ e->loc = l_assign;
+ if (Flag(FXTRACE)) {
+ const char *ccp;
+
+ ccp = skip_varname(cp, true);
+ if (*ccp == '+')
+ ++ccp;
+ if (*ccp == '=')
+ ++ccp;
+ shf_write(cp, ccp - cp, shl_xtrace);
+ print_value_quoted(shl_xtrace, ccp);
+ shf_putc(' ', shl_xtrace);
+ }
+ /* but assign in there as usual */
+ typeset(cp, type_flags, 0, 0, 0);
+ if (bourne_function_call && !(type_flags & EXPORT))
+ typeset(cp, LOCAL | LOCAL_COPY | EXPORT, 0, 0, 0);
+ }
+
+ if (Flag(FXTRACE)) {
+ change_xtrace(2, false);
+ if (ap[rv = 0]) {
+ xtrace_ap_loop:
+ print_value_quoted(shl_xtrace, ap[rv]);
+ if (ap[++rv]) {
+ shf_putc(' ', shl_xtrace);
+ goto xtrace_ap_loop;
+ }
+ }
+ change_xtrace(1, false);
+ }
+
+ if ((cp = *ap) == NULL) {
+ rv = subst_exstat;
+ goto Leave;
+ } else if (!tp) {
+ if (Flag(FRESTRICTED) && vstrchr(cp, '/')) {
+ warningf(true, "%s: %s", cp, "restricted");
+ rv = 1;
+ goto Leave;
+ }
+ tp = findcom(cp, fcflags);
+ }
+
+ switch (tp->type) {
+
+ /* shell built-in */
+ case CSHELL:
+ rv = call_builtin(tp, (const char **)ap, null);
+ if (!keepasn_ok && tp->val.f == c_shift) {
+ l_expand->argc = l_assign->argc;
+ l_expand->argv = l_assign->argv;
+ }
+ break;
+
+ /* function call */
+ case CFUNC: {
+ volatile unsigned char old_xflag;
+ volatile uint32_t old_inuse;
+ const char * volatile old_kshname;
+
+ if (!(tp->flag & ISSET)) {
+ struct tbl *ftp;
+
+ if (!tp->u.fpath) {
+ rv = (tp->u2.errnov == ENOENT) ? 127 : 126;
+ warningf(true, "%s: %s %s: %s", cp,
+ "can't find", "function definition file",
+ cstrerror(tp->u2.errnov));
+ break;
+ }
+ if (include(tp->u.fpath, 0, NULL, false) < 0) {
+ warningf(true, "%s: %s %s %s: %s", cp,
+ "can't open", "function definition file",
+ tp->u.fpath, cstrerror(errno));
+ rv = 127;
+ break;
+ }
+ if (!(ftp = findfunc(cp, hash(cp), false)) ||
+ !(ftp->flag & ISSET)) {
+ warningf(true, "%s: %s %s", cp,
+ "function not defined by", tp->u.fpath);
+ rv = 127;
+ break;
+ }
+ tp = ftp;
+ }
+
+ /*
+ * ksh functions set $0 to function name, POSIX
+ * functions leave $0 unchanged.
+ */
+ old_kshname = kshname;
+ if (tp->flag & FKSH)
+ kshname = ap[0];
+ else
+ ap[0] = kshname;
+ e->loc->argv = ap;
+ for (i = 0; *ap++ != NULL; i++)
+ ;
+ e->loc->argc = i - 1;
+ /*
+ * ksh-style functions handle getopts sanely,
+ * Bourne/POSIX functions are insane...
+ */
+ if (tp->flag & FKSH) {
+ e->loc->flags |= BF_DOGETOPTS;
+ e->loc->getopts_state = user_opt;
+ getopts_reset(1);
+ }
+
+ old_xflag = Flag(FXTRACE) ? 1 : 0;
+ change_xtrace((Flag(FXTRACEREC) ? old_xflag : 0) |
+ ((tp->flag & TRACE) ? 1 : 0), false);
+ old_inuse = tp->flag & FINUSE;
+ tp->flag |= FINUSE;
+
+ e->type = E_FUNC;
+ if (!(i = kshsetjmp(e->jbuf))) {
+ execute(tp->val.t, flags & XERROK, NULL);
+ i = LRETURN;
+ }
+
+ kshname = old_kshname;
+ change_xtrace(old_xflag, false);
+ tp->flag = (tp->flag & ~FINUSE) | old_inuse;
+
+ /*
+ * Were we deleted while executing? If so, free the
+ * execution tree. TODO: Unfortunately, the table entry
+ * is never re-used until the lookup table is expanded.
+ */
+ if ((tp->flag & (FDELETE|FINUSE)) == FDELETE) {
+ if (tp->flag & ALLOC) {
+ tp->flag &= ~ALLOC;
+ tfree(tp->val.t, tp->areap);
+ }
+ tp->flag = 0;
+ }
+ switch (i) {
+ case LRETURN:
+ case LERROR:
+ rv = exstat & 0xFF;
+ break;
+ case LINTR:
+ case LEXIT:
+ case LLEAVE:
+ case LSHELL:
+ quitenv(NULL);
+ unwind(i);
+ /* NOTREACHED */
+ default:
+ quitenv(NULL);
+ internal_errorf("%s %d", "CFUNC", i);
+ }
+ break;
+ }
+
+ /* executable command */
+ case CEXEC:
+ /* tracked alias */
+ case CTALIAS:
+ if (!(tp->flag&ISSET)) {
+ if (tp->u2.errnov == ENOENT) {
+ rv = 127;
+ warningf(true, "%s: %s", cp, "not found");
+ } else {
+ rv = 126;
+ warningf(true, "%s: %s: %s", cp, "can't execute",
+ cstrerror(tp->u2.errnov));
+ }
+ break;
+ }
+
+ /* set $_ to programme's full path */
+ /* setstr() can't fail here */
+ setstr(typeset("_", LOCAL | EXPORT, 0, INTEGER, 0),
+ tp->val.s, KSH_RETURN_ERROR);
+
+ if (flags&XEXEC) {
+ j_exit();
+ if (!(flags&XBGND)
+#ifndef MKSH_UNEMPLOYED
+ || Flag(FMONITOR)
+#endif
+ ) {
+ setexecsig(&sigtraps[SIGINT], SS_RESTORE_ORIG);
+ setexecsig(&sigtraps[SIGQUIT], SS_RESTORE_ORIG);
+ }
+ }
+
+ /* to fork we set up a TEXEC node and call execute */
+ texec.type = TEXEC;
+ /* for tprint */
+ texec.left = t;
+ texec.str = tp->val.s;
+ texec.args = ap;
+ rv = exchild(&texec, flags, xerrok, -1);
+ break;
+ }
+ Leave:
+ if (flags & XEXEC) {
+ exstat = rv & 0xFF;
+ unwind(LLEAVE);
+ }
+ return (rv);
+}
+
+static void
+scriptexec(struct op *tp, const char **ap)
+{
+ const char *sh;
+#ifndef MKSH_SMALL
+ unsigned char *cp;
+ /* 64 == MAXINTERP in MirBSD <sys/param.h> */
+ char buf[64];
+ int fd;
+#endif
+ union mksh_ccphack args, cap;
+
+ sh = str_val(global("EXECSHELL"));
+ if (sh && *sh)
+ sh = search_path(sh, path, X_OK, NULL);
+ if (!sh || !*sh)
+ sh = MKSH_DEFAULT_EXECSHELL;
+
+ *tp->args-- = tp->str;
+
+#ifndef MKSH_SMALL
+ if ((fd = open(tp->str, O_RDONLY | O_BINARY)) >= 0) {
+ /* read first MAXINTERP octets from file */
+ if (read(fd, buf, sizeof(buf)) <= 0)
+ /* read error -> no good */
+ buf[0] = '\0';
+ close(fd);
+
+ /* skip UTF-8 Byte Order Mark, if present */
+ cp = (unsigned char *)buf;
+ if ((cp[0] == 0xEF) && (cp[1] == 0xBB) && (cp[2] == 0xBF))
+ cp += 3;
+ /* save begin of shebang for later */
+ fd = (char *)cp - buf; /* either 0 or (if BOM) 3 */
+
+ /* scan for newline (or CR) or NUL _before_ end of buffer */
+ while ((size_t)((char *)cp - buf) < sizeof(buf))
+ if (*cp == '\0' || *cp == '\n' || *cp == '\r') {
+ *cp = '\0';
+ break;
+ } else
+ ++cp;
+ /* if the shebang line is longer than MAXINTERP, bail out */
+ if ((size_t)((char *)cp - buf) >= sizeof(buf))
+ goto noshebang;
+
+ /* restore begin of shebang position (buf+0 or buf+3) */
+ cp = (unsigned char *)(buf + fd);
+ /* bail out if read error (above) or no shebang */
+ if ((cp[0] != '#') || (cp[1] != '!'))
+ goto noshebang;
+
+ cp += 2;
+ /* skip whitespace before shell name */
+ while (*cp == ' ' || *cp == '\t')
+ ++cp;
+ /* just whitespace on the line? */
+ if (*cp == '\0')
+ goto noshebang;
+ /* no, we actually found an interpreter name */
+ sh = (char *)cp;
+ /* look for end of shell/interpreter name */
+ while (*cp != ' ' && *cp != '\t' && *cp != '\0')
+ ++cp;
+ /* any arguments? */
+ if (*cp) {
+ *cp++ = '\0';
+ /* skip spaces before arguments */
+ while (*cp == ' ' || *cp == '\t')
+ ++cp;
+ /* pass it all in ONE argument (historic reasons) */
+ if (*cp)
+ *tp->args-- = (char *)cp;
+ }
+ noshebang:
+ if (buf[0] == 0x7F && buf[1] == 'E' && buf[2] == 'L' &&
+ buf[3] == 'F')
+ errorf("%s: not executable: %d-bit ELF file", tp->str,
+ 32 * ((uint8_t)buf[4]));
+ fd = buf[0] << 8 | buf[1];
+ if ((fd == /* OMAGIC */ 0407) ||
+ (fd == /* NMAGIC */ 0410) ||
+ (fd == /* ZMAGIC */ 0413) ||
+ (fd == /* QMAGIC */ 0314) ||
+ (fd == /* ECOFF_I386 */ 0x4C01) ||
+ (fd == /* ECOFF_M68K */ 0x0150 || fd == 0x5001) ||
+ (fd == /* ECOFF_SH */ 0x0500 || fd == 0x0005) ||
+ (fd == /* "MZ" */ 0x4D5A) ||
+ (fd == /* gzip */ 0x1F8B))
+ errorf("%s: not executable: magic %04X", tp->str, fd);
+ }
+#endif
+ args.ro = tp->args;
+ *args.ro = sh;
+
+ cap.ro = ap;
+ execve(args.rw[0], args.rw, cap.rw);
+
+ /* report both the programme that was run and the bogus interpreter */
+ errorf("%s: %s: %s", tp->str, sh, cstrerror(errno));
+}
+
+int
+shcomexec(const char **wp)
+{
+ struct tbl *tp;
+
+ tp = ktsearch(&builtins, *wp, hash(*wp));
+ return (call_builtin(tp, wp, "shcomexec"));
+}
+
+/*
+ * Search function tables for a function. If create set, a table entry
+ * is created if none is found.
+ */
+struct tbl *
+findfunc(const char *name, uint32_t h, bool create)
+{
+ struct block *l;
+ struct tbl *tp = NULL;
+
+ for (l = e->loc; l; l = l->next) {
+ tp = ktsearch(&l->funs, name, h);
+ if (tp)
+ break;
+ if (!l->next && create) {
+ tp = ktenter(&l->funs, name, h);
+ tp->flag = DEFINED;
+ tp->type = CFUNC;
+ tp->val.t = NULL;
+ break;
+ }
+ }
+ return (tp);
+}
+
+/*
+ * define function. Returns 1 if function is being undefined (t == 0) and
+ * function did not exist, returns 0 otherwise.
+ */
+int
+define(const char *name, struct op *t)
+{
+ uint32_t nhash;
+ struct tbl *tp;
+ bool was_set = false;
+
+ nhash = hash(name);
+
+ if (t != NULL && !tobool(t->u.ksh_func)) {
+ /* drop same-name aliases for POSIX functions */
+ if ((tp = ktsearch(&aliases, name, nhash)))
+ ktdelete(tp);
+ }
+
+ while (/* CONSTCOND */ 1) {
+ tp = findfunc(name, nhash, true);
+ /* because findfunc:create=true */
+ mkssert(tp != NULL);
+
+ if (tp->flag & ISSET)
+ was_set = true;
+ /*
+ * If this function is currently being executed, we zap
+ * this table entry so findfunc() won't see it
+ */
+ if (tp->flag & FINUSE) {
+ tp->name[0] = '\0';
+ /* ensure it won't be found */
+ tp->flag &= ~DEFINED;
+ tp->flag |= FDELETE;
+ } else
+ break;
+ }
+
+ if (tp->flag & ALLOC) {
+ tp->flag &= ~(ISSET|ALLOC);
+ tfree(tp->val.t, tp->areap);
+ }
+
+ if (t == NULL) {
+ /* undefine */
+ ktdelete(tp);
+ return (was_set ? 0 : 1);
+ }
+
+ tp->val.t = tcopy(t->left, tp->areap);
+ tp->flag |= (ISSET|ALLOC);
+ if (t->u.ksh_func)
+ tp->flag |= FKSH;
+
+ return (0);
+}
+
+/*
+ * add builtin
+ */
+const char *
+builtin(const char *name, int (*func) (const char **))
+{
+ struct tbl *tp;
+ uint32_t flag = DEFINED;
+
+ /* see if any flags should be set for this builtin */
+ while (1) {
+ if (*name == '=')
+ /* command does variable assignment */
+ flag |= KEEPASN;
+ else if (*name == '*')
+ /* POSIX special builtin */
+ flag |= SPEC_BI;
+ else
+ break;
+ name++;
+ }
+
+ tp = ktenter(&builtins, name, hash(name));
+ tp->flag = flag;
+ tp->type = CSHELL;
+ tp->val.f = func;
+
+ return (name);
+}
+
+/*
+ * find command
+ * either function, hashed command, or built-in (in that order)
+ */
+struct tbl *
+findcom(const char *name, int flags)
+{
+ static struct tbl temp;
+ uint32_t h = hash(name);
+ struct tbl *tp = NULL, *tbi;
+ /* insert if not found */
+ unsigned char insert = Flag(FTRACKALL);
+ /* for function autoloading */
+ char *fpath;
+ union mksh_cchack npath;
+
+ if (vstrchr(name, '/')) {
+ insert = 0;
+ /* prevent FPATH search below */
+ flags &= ~FC_FUNC;
+ goto Search;
+ }
+ tbi = (flags & FC_BI) ? ktsearch(&builtins, name, h) : NULL;
+ /*
+ * POSIX says special builtins first, then functions, then
+ * regular builtins, then search path...
+ */
+ if ((flags & FC_SPECBI) && tbi && (tbi->flag & SPEC_BI))
+ tp = tbi;
+ if (!tp && (flags & FC_FUNC)) {
+ tp = findfunc(name, h, false);
+ if (tp && !(tp->flag & ISSET)) {
+ if ((fpath = str_val(global("FPATH"))) == null) {
+ tp->u.fpath = NULL;
+ tp->u2.errnov = ENOENT;
+ } else
+ tp->u.fpath = search_path(name, fpath, R_OK,
+ &tp->u2.errnov);
+ }
+ }
+ if (!tp && (flags & FC_NORMBI) && tbi)
+ tp = tbi;
+ if (!tp && (flags & FC_PATH) && !(flags & FC_DEFPATH)) {
+ tp = ktsearch(&taliases, name, h);
+ if (tp && (tp->flag & ISSET) &&
+ ksh_access(tp->val.s, X_OK) != 0) {
+ if (tp->flag & ALLOC) {
+ tp->flag &= ~ALLOC;
+ afree(tp->val.s, APERM);
+ }
+ tp->flag &= ~ISSET;
+ }
+ }
+
+ Search:
+ if ((!tp || (tp->type == CTALIAS && !(tp->flag&ISSET))) &&
+ (flags & FC_PATH)) {
+ if (!tp) {
+ if (insert && !(flags & FC_DEFPATH)) {
+ tp = ktenter(&taliases, name, h);
+ tp->type = CTALIAS;
+ } else {
+ tp = &temp;
+ tp->type = CEXEC;
+ }
+ /* make ~ISSET */
+ tp->flag = DEFINED;
+ }
+ npath.ro = search_path(name,
+ (flags & FC_DEFPATH) ? def_path : path,
+ X_OK, &tp->u2.errnov);
+ if (npath.ro) {
+ strdupx(tp->val.s, npath.ro, APERM);
+ if (npath.ro != name)
+ afree(npath.rw, ATEMP);
+ tp->flag |= ISSET|ALLOC;
+ } else if ((flags & FC_FUNC) &&
+ (fpath = str_val(global("FPATH"))) != null &&
+ (npath.ro = search_path(name, fpath, R_OK,
+ &tp->u2.errnov)) != NULL) {
+ /*
+ * An undocumented feature of AT&T ksh is that
+ * it searches FPATH if a command is not found,
+ * even if the command hasn't been set up as an
+ * autoloaded function (ie, no typeset -uf).
+ */
+ tp = &temp;
+ tp->type = CFUNC;
+ /* make ~ISSET */
+ tp->flag = DEFINED;
+ tp->u.fpath = npath.ro;
+ }
+ }
+ return (tp);
+}
+
+/*
+ * flush executable commands with relative paths
+ * (just relative or all?)
+ */
+void
+flushcom(bool all)
+{
+ struct tbl *tp;
+ struct tstate ts;
+
+ for (ktwalk(&ts, &taliases); (tp = ktnext(&ts)) != NULL; )
+ if ((tp->flag&ISSET) && (all || tp->val.s[0] != '/')) {
+ if (tp->flag&ALLOC) {
+ tp->flag &= ~(ALLOC|ISSET);
+ afree(tp->val.s, APERM);
+ }
+ tp->flag &= ~ISSET;
+ }
+}
+
+/* check if path is something we want to find */
+static int
+search_access(const char *fn, int mode)
+{
+ struct stat sb;
+
+ if (stat(fn, &sb) < 0)
+ /* file does not exist */
+ return (ENOENT);
+ /* LINTED use of access */
+ if (access(fn, mode) < 0)
+ /* file exists, but we can't access it */
+ return (errno);
+ if (mode == X_OK && (!S_ISREG(sb.st_mode) ||
+ !(sb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH))))
+ /* access(2) may say root can execute everything */
+ return (S_ISDIR(sb.st_mode) ? EISDIR : EACCES);
+ return (0);
+}
+
+/*
+ * search for command with PATH
+ */
+const char *
+search_path(const char *name, const char *lpath,
+ /* R_OK or X_OK */
+ int mode,
+ /* set if candidate found, but not suitable */
+ int *errnop)
+{
+ const char *sp, *p;
+ char *xp;
+ XString xs;
+ size_t namelen;
+ int ec = 0, ev;
+
+ if (vstrchr(name, '/')) {
+ if ((ec = search_access(name, mode)) == 0) {
+ search_path_ok:
+ if (errnop)
+ *errnop = 0;
+ return (name);
+ }
+ goto search_path_err;
+ }
+
+ namelen = strlen(name) + 1;
+ Xinit(xs, xp, 128, ATEMP);
+
+ sp = lpath;
+ while (sp != NULL) {
+ xp = Xstring(xs, xp);
+ if (!(p = cstrchr(sp, ':')))
+ p = sp + strlen(sp);
+ if (p != sp) {
+ XcheckN(xs, xp, p - sp);
+ memcpy(xp, sp, p - sp);
+ xp += p - sp;
+ *xp++ = '/';
+ }
+ sp = p;
+ XcheckN(xs, xp, namelen);
+ memcpy(xp, name, namelen);
+ if ((ev = search_access(Xstring(xs, xp), mode)) == 0) {
+ name = Xclose(xs, xp + namelen);
+ goto search_path_ok;
+ }
+ /* accumulate non-ENOENT errors only */
+ if (ev != ENOENT && ec == 0)
+ ec = ev;
+ if (*sp++ == '\0')
+ sp = NULL;
+ }
+ Xfree(xs, xp);
+ search_path_err:
+ if (errnop)
+ *errnop = ec ? ec : ENOENT;
+ return (NULL);
+}
+
+static int
+call_builtin(struct tbl *tp, const char **wp, const char *where)
+{
+ int rv;
+
+ if (!tp)
+ internal_errorf("%s: %s", where, wp[0]);
+ builtin_argv0 = wp[0];
+ builtin_flag = tp->flag;
+ shf_reopen(1, SHF_WR, shl_stdout);
+ shl_stdout_ok = true;
+ ksh_getopt_reset(&builtin_opt, GF_ERROR);
+ rv = (*tp->val.f)(wp);
+ shf_flush(shl_stdout);
+ shl_stdout_ok = false;
+ builtin_flag = 0;
+ builtin_argv0 = NULL;
+ return (rv);
+}
+
+/*
+ * set up redirection, saving old fds in e->savefd
+ */
+static int
+iosetup(struct ioword *iop, struct tbl *tp)
+{
+ int u = -1;
+ char *cp = iop->name;
+ int iotype = iop->flag & IOTYPE;
+ bool do_open = true, do_close = false;
+ int flags = 0;
+ struct ioword iotmp;
+ struct stat statb;
+
+ if (iotype != IOHERE)
+ cp = evalonestr(cp, DOTILDE|(Flag(FTALKING_I) ? DOGLOB : 0));
+
+ /* Used for tracing and error messages to print expanded cp */
+ iotmp = *iop;
+ iotmp.name = (iotype == IOHERE) ? NULL : cp;
+ iotmp.flag |= IONAMEXP;
+
+ if (Flag(FXTRACE)) {
+ change_xtrace(2, false);
+ fptreef(shl_xtrace, 0, "%R", &iotmp);
+ change_xtrace(1, false);
+ }
+
+ switch (iotype) {
+ case IOREAD:
+ flags = O_RDONLY;
+ break;
+
+ case IOCAT:
+ flags = O_WRONLY | O_APPEND | O_CREAT;
+ break;
+
+ case IOWRITE:
+ flags = O_WRONLY | O_CREAT | O_TRUNC;
+ /*
+ * The stat() is here to allow redirections to
+ * things like /dev/null without error.
+ */
+ if (Flag(FNOCLOBBER) && !(iop->flag & IOCLOB) &&
+ (stat(cp, &statb) < 0 || S_ISREG(statb.st_mode)))
+ flags |= O_EXCL;
+ break;
+
+ case IORDWR:
+ flags = O_RDWR | O_CREAT;
+ break;
+
+ case IOHERE:
+ do_open = false;
+ /* herein() returns -2 if error has been printed */
+ u = herein(iop, NULL);
+ /* cp may have wrong name */
+ break;
+
+ case IODUP: {
+ const char *emsg;
+
+ do_open = false;
+ if (*cp == '-' && !cp[1]) {
+ /* prevent error return below */
+ u = 1009;
+ do_close = true;
+ } else if ((u = check_fd(cp,
+ X_OK | ((iop->flag & IORDUP) ? R_OK : W_OK),
+ &emsg)) < 0) {
+ char *sp;
+
+ warningf(true, "%s: %s",
+ (sp = snptreef(NULL, 32, "%R", &iotmp)), emsg);
+ afree(sp, ATEMP);
+ return (-1);
+ }
+ if (u == iop->unit)
+ /* "dup from" == "dup to" */
+ return (0);
+ break;
+ }
+ }
+
+ if (do_open) {
+ if (Flag(FRESTRICTED) && (flags & O_CREAT)) {
+ warningf(true, "%s: %s", cp, "restricted");
+ return (-1);
+ }
+ u = open(cp, flags | O_BINARY, 0666);
+ }
+ if (u < 0) {
+ /* herein() may already have printed message */
+ if (u == -1) {
+ u = errno;
+ warningf(true, "can't %s %s: %s",
+ iotype == IODUP ? "dup" :
+ (iotype == IOREAD || iotype == IOHERE) ?
+ "open" : "create", cp, cstrerror(u));
+ }
+ return (-1);
+ }
+ /* Do not save if it has already been redirected (i.e. "cat >x >y"). */
+ if (e->savefd[iop->unit] == 0) {
+ /* If these are the same, it means unit was previously closed */
+ if (u == iop->unit)
+ e->savefd[iop->unit] = -1;
+ else
+ /*
+ * c_exec() assumes e->savefd[fd] set for any
+ * redirections. Ask savefd() not to close iop->unit;
+ * this allows error messages to be seen if iop->unit
+ * is 2; also means we can't lose the fd (eg, both
+ * dup2 below and dup2 in restfd() failing).
+ */
+ e->savefd[iop->unit] = savefd(iop->unit);
+ }
+
+ if (do_close)
+ close(iop->unit);
+ else if (u != iop->unit) {
+ if (ksh_dup2(u, iop->unit, true) < 0) {
+ int eno;
+ char *sp;
+
+ eno = errno;
+ warningf(true, "%s %s %s",
+ "can't finish (dup) redirection",
+ (sp = snptreef(NULL, 32, "%R", &iotmp)),
+ cstrerror(eno));
+ afree(sp, ATEMP);
+ if (iotype != IODUP)
+ close(u);
+ return (-1);
+ }
+ if (iotype != IODUP)
+ close(u);
+ /*
+ * Touching any co-process fd in an empty exec
+ * causes the shell to close its copies
+ */
+ else if (tp && tp->type == CSHELL && tp->val.f == c_exec) {
+ if (iop->flag & IORDUP)
+ /* possible exec <&p */
+ coproc_read_close(u);
+ else
+ /* possible exec >&p */
+ coproc_write_close(u);
+ }
+ }
+ if (u == 2)
+ /* Clear any write errors */
+ shf_reopen(2, SHF_WR, shl_out);
+ return (0);
+}
+
+/*
+ * Process here documents by providing the content, either as
+ * result (globally allocated) string or in a temp file; if
+ * unquoted, the string is expanded first.
+ */
+static int
+hereinval(const char *content, int sub, char **resbuf, struct shf *shf)
+{
+ const char * volatile ccp = content;
+ struct source *s, *osource;
+
+ osource = source;
+ newenv(E_ERRH);
+ if (kshsetjmp(e->jbuf)) {
+ source = osource;
+ quitenv(shf);
+ /* special to iosetup(): don't print error */
+ return (-2);
+ }
+ if (sub) {
+ /* do substitutions on the content of heredoc */
+ s = pushs(SSTRING, ATEMP);
+ s->start = s->str = ccp;
+ source = s;
+ if (yylex(sub) != LWORD)
+ internal_errorf("%s: %s", "herein", "yylex");
+ source = osource;
+ ccp = evalstr(yylval.cp, 0);
+ }
+
+ if (resbuf == NULL)
+ shf_puts(ccp, shf);
+ else
+ strdupx(*resbuf, ccp, APERM);
+
+ quitenv(NULL);
+ return (0);
+}
+
+static int
+herein(struct ioword *iop, char **resbuf)
+{
+ int fd = -1;
+ struct shf *shf;
+ struct temp *h;
+ int i;
+
+ /* ksh -c 'cat << EOF' can cause this... */
+ if (iop->heredoc == NULL) {
+ warningf(true, "%s missing", "here document");
+ /* special to iosetup(): don't print error */
+ return (-2);
+ }
+
+ /* lexer substitution flags */
+ i = (iop->flag & IOEVAL) ? (ONEWORD | HEREDOC) : 0;
+
+ /* skip all the fd setup if we just want the value */
+ if (resbuf != NULL)
+ return (hereinval(iop->heredoc, i, resbuf, NULL));
+
+ /*
+ * Create temp file to hold content (done before newenv
+ * so temp doesn't get removed too soon).
+ */
+ h = maketemp(ATEMP, TT_HEREDOC_EXP, &e->temps);
+ if (!(shf = h->shf) || (fd = open(h->tffn, O_RDONLY | O_BINARY, 0)) < 0) {
+ i = errno;
+ warningf(true, "can't %s temporary file %s: %s",
+ !shf ? "create" : "open", h->tffn, cstrerror(i));
+ if (shf)
+ shf_close(shf);
+ /* special to iosetup(): don't print error */
+ return (-2);
+ }
+
+ if (hereinval(iop->heredoc, i, NULL, shf) == -2) {
+ close(fd);
+ /* special to iosetup(): don't print error */
+ return (-2);
+ }
+
+ if (shf_close(shf) == EOF) {
+ i = errno;
+ close(fd);
+ warningf(true, "can't %s temporary file %s: %s",
+ "write", h->tffn, cstrerror(i));
+ /* special to iosetup(): don't print error */
+ return (-2);
+ }
+
+ return (fd);
+}
+
+/*
+ * ksh special - the select command processing section
+ * print the args in column form - assuming that we can
+ */
+static const char *
+do_selectargs(const char **ap, bool print_menu)
+{
+ static const char *read_args[] = {
+ "read", "-r", "REPLY", NULL
+ };
+ char *s;
+ int i, argct;
+
+ for (argct = 0; ap[argct]; argct++)
+ ;
+ while (/* CONSTCOND */ 1) {
+ /*-
+ * Menu is printed if
+ * - this is the first time around the select loop
+ * - the user enters a blank line
+ * - the REPLY parameter is empty
+ */
+ if (print_menu || !*str_val(global("REPLY")))
+ pr_menu(ap);
+ shellf("%s", str_val(global("PS3")));
+ if (call_builtin(findcom("read", FC_BI), read_args, Tselect))
+ return (NULL);
+ s = str_val(global("REPLY"));
+ if (*s && getn(s, &i))
+ return ((i >= 1 && i <= argct) ? ap[i - 1] : null);
+ print_menu = true;
+ }
+}
+
+struct select_menu_info {
+ const char * const *args;
+ int num_width;
+};
+
+/* format a single select menu item */
+static char *
+select_fmt_entry(char *buf, size_t buflen, unsigned int i, const void *arg)
+{
+ const struct select_menu_info *smi =
+ (const struct select_menu_info *)arg;
+
+ shf_snprintf(buf, buflen, "%*u) %s",
+ smi->num_width, i + 1, smi->args[i]);
+ return (buf);
+}
+
+/*
+ * print a select style menu
+ */
+void
+pr_menu(const char * const *ap)
+{
+ struct select_menu_info smi;
+ const char * const *pp;
+ size_t acols = 0, aocts = 0, i;
+ unsigned int n;
+
+ /*
+ * width/column calculations were done once and saved, but this
+ * means select can't be used recursively so we re-calculate
+ * each time (could save in a structure that is returned, but
+ * it's probably not worth the bother)
+ */
+
+ /*
+ * get dimensions of the list
+ */
+ for (n = 0, pp = ap; *pp; n++, pp++) {
+ i = strlen(*pp);
+ if (i > aocts)
+ aocts = i;
+ i = utf_mbswidth(*pp);
+ if (i > acols)
+ acols = i;
+ }
+
+ /*
+ * we will print an index of the form "%d) " in front of
+ * each entry, so get the maximum width of this
+ */
+ for (i = n, smi.num_width = 1; i >= 10; i /= 10)
+ smi.num_width++;
+
+ smi.args = ap;
+ print_columns(shl_out, n, select_fmt_entry, (void *)&smi,
+ smi.num_width + 2 + aocts, smi.num_width + 2 + acols,
+ true);
+}
+
+static char *
+plain_fmt_entry(char *buf, size_t buflen, unsigned int i, const void *arg)
+{
+ strlcpy(buf, ((const char * const *)arg)[i], buflen);
+ return (buf);
+}
+
+void
+pr_list(char * const *ap)
+{
+ size_t acols = 0, aocts = 0, i;
+ unsigned int n;
+ char * const *pp;
+
+ for (n = 0, pp = ap; *pp; n++, pp++) {
+ i = strlen(*pp);
+ if (i > aocts)
+ aocts = i;
+ i = utf_mbswidth(*pp);
+ if (i > acols)
+ acols = i;
+ }
+
+ print_columns(shl_out, n, plain_fmt_entry, (const void *)ap,
+ aocts, acols, false);
+}
+
+/*
+ * [[ ... ]] evaluation routines
+ */
+
+/*
+ * Test if the current token is a whatever. Accepts the current token if
+ * it is. Returns 0 if it is not, non-zero if it is (in the case of
+ * TM_UNOP and TM_BINOP, the returned value is a Test_op).
+ */
+static Test_op
+dbteste_isa(Test_env *te, Test_meta meta)
+{
+ Test_op ret = TO_NONOP;
+ bool uqword;
+ const char *p;
+
+ if (!*te->pos.wp)
+ return (meta == TM_END ? TO_NONNULL : TO_NONOP);
+
+ /* unquoted word? */
+ for (p = *te->pos.wp; *p == CHAR; p += 2)
+ ;
+ uqword = *p == EOS;
+
+ if (meta == TM_UNOP || meta == TM_BINOP) {
+ if (uqword) {
+ /* longer than the longest operator */
+ char buf[8];
+ char *q = buf;
+
+ p = *te->pos.wp;
+ while (*p++ == CHAR &&
+ (size_t)(q - buf) < sizeof(buf) - 1)
+ *q++ = *p++;
+ *q = '\0';
+ ret = test_isop(meta, buf);
+ }
+ } else if (meta == TM_END)
+ ret = TO_NONOP;
+ else
+ ret = (uqword && !strcmp(*te->pos.wp,
+ dbtest_tokens[(int)meta])) ? TO_NONNULL : TO_NONOP;
+
+ /* Accept the token? */
+ if (ret != TO_NONOP)
+ te->pos.wp++;
+
+ return (ret);
+}
+
+static const char *
+dbteste_getopnd(Test_env *te, Test_op op, bool do_eval)
+{
+ const char *s = *te->pos.wp;
+
+ if (!s)
+ return (NULL);
+
+ te->pos.wp++;
+
+ if (!do_eval)
+ return (null);
+
+ if (op == TO_STEQL || op == TO_STNEQ)
+ s = evalstr(s, DOTILDE | DOPAT);
+ else
+ s = evalstr(s, DOTILDE);
+
+ return (s);
+}
+
+static void
+dbteste_error(Test_env *te, int offset, const char *msg)
+{
+ te->flags |= TEF_ERROR;
+ internal_warningf("dbteste_error: %s (offset %d)", msg, offset);
+}
Deleted: vendor/MirOS/mksh/R50/expr.c
===================================================================
--- vendor/MirOS/mksh/dist/expr.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/expr.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1191 +0,0 @@
-/* $OpenBSD: expr.c,v 1.22 2013/03/28 08:39:28 nicm Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- * 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-
-__RCSID("$MirOS: src/bin/mksh/expr.c,v 1.72 2013/07/21 18:38:56 tg Exp $");
-
-/* the order of these enums is constrained by the order of opinfo[] */
-enum token {
- /* some (long) unary operators */
- O_PLUSPLUS = 0, O_MINUSMINUS,
- /* binary operators */
- O_EQ, O_NE,
- /* assignments are assumed to be in range O_ASN .. O_BORASN */
- O_ASN, O_TIMESASN, O_DIVASN, O_MODASN, O_PLUSASN, O_MINUSASN,
-#ifndef MKSH_LEGACY_MODE
- O_ROLASN, O_RORASN,
-#endif
- O_LSHIFTASN, O_RSHIFTASN, O_BANDASN, O_BXORASN, O_BORASN,
- /* binary non-assignment operators */
-#ifndef MKSH_LEGACY_MODE
- O_ROL, O_ROR,
-#endif
- O_LSHIFT, O_RSHIFT,
- O_LE, O_GE, O_LT, O_GT,
- O_LAND,
- O_LOR,
- O_TIMES, O_DIV, O_MOD,
- O_PLUS, O_MINUS,
- O_BAND,
- O_BXOR,
- O_BOR,
- O_TERN,
- O_COMMA,
- /* things after this aren't used as binary operators */
- /* unary that are not also binaries */
- O_BNOT, O_LNOT,
- /* misc */
- OPEN_PAREN, CLOSE_PAREN, CTERN,
- /* things that don't appear in the opinfo[] table */
- VAR, LIT, END, BAD
-};
-#define IS_ASSIGNOP(op) ((int)(op) >= (int)O_ASN && (int)(op) <= (int)O_BORASN)
-
-/* precisions; used to be enum prec but we do arithmetics on it */
-#define P_PRIMARY 0 /* VAR, LIT, (), ! ~ ++ -- */
-#define P_MULT 1 /* * / % */
-#define P_ADD 2 /* + - */
-#define P_SHIFT 3 /* <<< >>> << >> */
-#define P_RELATION 4 /* < <= > >= */
-#define P_EQUALITY 5 /* == != */
-#define P_BAND 6 /* & */
-#define P_BXOR 7 /* ^ */
-#define P_BOR 8 /* | */
-#define P_LAND 9 /* && */
-#define P_LOR 10 /* || */
-#define P_TERN 11 /* ?: */
- /* = += -= *= /= %= <<<= >>>= <<= >>= &= ^= |= */
-#define P_ASSIGN 12
-#define P_COMMA 13 /* , */
-#define MAX_PREC P_COMMA
-
-struct opinfo {
- char name[5];
- /* name length */
- uint8_t len;
- /* precedence: lower is higher */
- uint8_t prec;
-};
-
-/*
- * Tokens in this table must be ordered so the longest are first
- * (eg, += before +). If you change something, change the order
- * of enum token too.
- */
-static const struct opinfo opinfo[] = {
- { "++", 2, P_PRIMARY }, /* before + */
- { "--", 2, P_PRIMARY }, /* before - */
- { "==", 2, P_EQUALITY }, /* before = */
- { "!=", 2, P_EQUALITY }, /* before ! */
- { "=", 1, P_ASSIGN }, /* keep assigns in a block */
- { "*=", 2, P_ASSIGN },
- { "/=", 2, P_ASSIGN },
- { "%=", 2, P_ASSIGN },
- { "+=", 2, P_ASSIGN },
- { "-=", 2, P_ASSIGN },
-#ifndef MKSH_LEGACY_MODE
- { "<<<=", 4, P_ASSIGN }, /* before <<< */
- { ">>>=", 4, P_ASSIGN }, /* before >>> */
-#endif
- { "<<=", 3, P_ASSIGN },
- { ">>=", 3, P_ASSIGN },
- { "&=", 2, P_ASSIGN },
- { "^=", 2, P_ASSIGN },
- { "|=", 2, P_ASSIGN },
-#ifndef MKSH_LEGACY_MODE
- { "<<<", 3, P_SHIFT }, /* before << */
- { ">>>", 3, P_SHIFT }, /* before >> */
-#endif
- { "<<", 2, P_SHIFT },
- { ">>", 2, P_SHIFT },
- { "<=", 2, P_RELATION },
- { ">=", 2, P_RELATION },
- { "<", 1, P_RELATION },
- { ">", 1, P_RELATION },
- { "&&", 2, P_LAND },
- { "||", 2, P_LOR },
- { "*", 1, P_MULT },
- { "/", 1, P_MULT },
- { "%", 1, P_MULT },
- { "+", 1, P_ADD },
- { "-", 1, P_ADD },
- { "&", 1, P_BAND },
- { "^", 1, P_BXOR },
- { "|", 1, P_BOR },
- { "?", 1, P_TERN },
- { ",", 1, P_COMMA },
- { "~", 1, P_PRIMARY },
- { "!", 1, P_PRIMARY },
- { "(", 1, P_PRIMARY },
- { ")", 1, P_PRIMARY },
- { ":", 1, P_PRIMARY },
- { "", 0, P_PRIMARY }
-};
-
-typedef struct expr_state {
- /* expression being evaluated */
- const char *expression;
- /* lexical position */
- const char *tokp;
- /* value from token() */
- struct tbl *val;
- /* variable that is being recursively expanded (EXPRINEVAL flag set) */
- struct tbl *evaling;
- /* token from token() */
- enum token tok;
- /* don't do assignments (for ?:, &&, ||) */
- uint8_t noassign;
- /* evaluating an $(()) expression? */
- bool arith;
- /* unsigned arithmetic calculation */
- bool natural;
-} Expr_state;
-
-enum error_type {
- ET_UNEXPECTED, ET_BADLIT, ET_RECURSIVE,
- ET_LVALUE, ET_RDONLY, ET_STR
-};
-
-static void evalerr(Expr_state *, enum error_type, const char *)
- MKSH_A_NORETURN;
-static struct tbl *evalexpr(Expr_state *, unsigned int);
-static void exprtoken(Expr_state *);
-static struct tbl *do_ppmm(Expr_state *, enum token, struct tbl *, bool);
-static void assign_check(Expr_state *, enum token, struct tbl *);
-static struct tbl *intvar(Expr_state *, struct tbl *);
-
-/*
- * parse and evaluate expression
- */
-int
-evaluate(const char *expr, mksh_ari_t *rval, int error_ok, bool arith)
-{
- struct tbl v;
- int ret;
-
- v.flag = DEFINED | INTEGER;
- v.type = 0;
- ret = v_evaluate(&v, expr, error_ok, arith);
- *rval = v.val.i;
- return (ret);
-}
-
-/*
- * parse and evaluate expression, storing result in vp.
- */
-int
-v_evaluate(struct tbl *vp, const char *expr, volatile int error_ok,
- bool arith)
-{
- struct tbl *v;
- Expr_state curstate;
- Expr_state * const es = &curstate;
- int i;
-
- /* save state to allow recursive calls */
- memset(&curstate, 0, sizeof(curstate));
- curstate.expression = curstate.tokp = expr;
- curstate.tok = BAD;
- curstate.arith = arith;
-
- newenv(E_ERRH);
- if ((i = kshsetjmp(e->jbuf))) {
- /* Clear EXPRINEVAL in of any variables we were playing with */
- if (curstate.evaling)
- curstate.evaling->flag &= ~EXPRINEVAL;
- quitenv(NULL);
- if (i == LAEXPR) {
- if (error_ok == KSH_RETURN_ERROR)
- return (0);
- errorfz();
- }
- unwind(i);
- /* NOTREACHED */
- }
-
- exprtoken(es);
- if (es->tok == END) {
- es->tok = LIT;
- es->val = tempvar();
- }
- v = intvar(es, evalexpr(es, MAX_PREC));
-
- if (es->tok != END)
- evalerr(es, ET_UNEXPECTED, NULL);
-
- if (es->arith && es->natural)
- vp->flag |= INT_U;
- if (vp->flag & INTEGER)
- setint_v(vp, v, es->arith);
- else
- /* can fail if readonly */
- setstr(vp, str_val(v), error_ok);
-
- quitenv(NULL);
-
- return (1);
-}
-
-static void
-evalerr(Expr_state *es, enum error_type type, const char *str)
-{
- char tbuf[2];
- const char *s;
-
- es->arith = false;
- switch (type) {
- case ET_UNEXPECTED:
- switch (es->tok) {
- case VAR:
- s = es->val->name;
- break;
- case LIT:
- s = str_val(es->val);
- break;
- case END:
- s = "end of expression";
- break;
- case BAD:
- tbuf[0] = *es->tokp;
- tbuf[1] = '\0';
- s = tbuf;
- break;
- default:
- s = opinfo[(int)es->tok].name;
- }
- warningf(true, "%s: %s '%s'", es->expression,
- "unexpected", s);
- break;
-
- case ET_BADLIT:
- warningf(true, "%s: %s '%s'", es->expression,
- "bad number", str);
- break;
-
- case ET_RECURSIVE:
- warningf(true, "%s: %s '%s'", es->expression,
- "expression recurses on parameter", str);
- break;
-
- case ET_LVALUE:
- warningf(true, "%s: %s %s",
- es->expression, str, "requires lvalue");
- break;
-
- case ET_RDONLY:
- warningf(true, "%s: %s %s",
- es->expression, str, "applied to read-only variable");
- break;
-
- default: /* keep gcc happy */
- case ET_STR:
- warningf(true, "%s: %s", es->expression, str);
- break;
- }
- unwind(LAEXPR);
-}
-
-/* do a ++ or -- operation */
-static struct tbl *
-do_ppmm(Expr_state *es, enum token op, struct tbl *vasn, bool is_prefix)
-{
- struct tbl *vl;
- mksh_uari_t oval;
-
- assign_check(es, op, vasn);
-
- vl = intvar(es, vasn);
- oval = vl->val.u;
- if (op == O_PLUSPLUS)
- ++vl->val.u;
- else
- --vl->val.u;
- if (!es->noassign) {
- if (vasn->flag & INTEGER)
- setint_v(vasn, vl, es->arith);
- else
- setint(vasn, vl->val.i);
- }
- if (!is_prefix)
- /* undo the increment/decrement */
- vl->val.u = oval;
-
- return (vl);
-}
-
-static struct tbl *
-evalexpr(Expr_state *es, unsigned int prec)
-{
- struct tbl *vl, *vr = NULL, *vasn;
- enum token op;
- mksh_uari_t res = 0, t1, t2, t3;
-
- if (prec == P_PRIMARY) {
- switch ((int)(op = es->tok)) {
- case O_BNOT:
- case O_LNOT:
- case O_MINUS:
- case O_PLUS:
- exprtoken(es);
- vl = intvar(es, evalexpr(es, P_PRIMARY));
- switch ((int)op) {
- case O_BNOT:
- vl->val.u = ~vl->val.u;
- break;
- case O_LNOT:
- vl->val.u = !vl->val.u;
- break;
- case O_MINUS:
- vl->val.u = -vl->val.u;
- break;
- case O_PLUS:
- /* nop */
- break;
- }
- break;
-
- case OPEN_PAREN:
- exprtoken(es);
- vl = evalexpr(es, MAX_PREC);
- if (es->tok != CLOSE_PAREN)
- evalerr(es, ET_STR, "missing )");
- exprtoken(es);
- break;
-
- case O_PLUSPLUS:
- case O_MINUSMINUS:
- exprtoken(es);
- vl = do_ppmm(es, op, es->val, true);
- exprtoken(es);
- break;
-
- case VAR:
- case LIT:
- vl = es->val;
- exprtoken(es);
- break;
-
- default:
- evalerr(es, ET_UNEXPECTED, NULL);
- /* NOTREACHED */
- }
-
- if (es->tok == O_PLUSPLUS || es->tok == O_MINUSMINUS) {
- vl = do_ppmm(es, es->tok, vl, false);
- exprtoken(es);
- }
-
- return (vl);
- /* prec == P_PRIMARY */
- }
-
- vl = evalexpr(es, prec - 1);
- while ((int)(op = es->tok) >= (int)O_EQ && (int)op <= (int)O_COMMA &&
- opinfo[(int)op].prec == prec) {
- exprtoken(es);
- vasn = vl;
- if (op != O_ASN)
- /* vl may not have a value yet */
- vl = intvar(es, vl);
- if (IS_ASSIGNOP(op)) {
- if (!es->noassign)
- assign_check(es, op, vasn);
- vr = intvar(es, evalexpr(es, P_ASSIGN));
- } else if (op == O_TERN) {
- bool ev = vl->val.u != 0;
-
- if (!ev)
- es->noassign++;
- vl = evalexpr(es, MAX_PREC);
- if (!ev)
- es->noassign--;
- if (es->tok != CTERN)
- evalerr(es, ET_STR, "missing :");
- exprtoken(es);
- if (ev)
- es->noassign++;
- vr = evalexpr(es, P_TERN);
- if (ev)
- es->noassign--;
- vl = ev ? vl : vr;
- continue;
- } else if (op != O_LAND && op != O_LOR)
- vr = intvar(es, evalexpr(es, prec - 1));
-
- /* common ops setup */
- switch ((int)op) {
- case O_DIV:
- case O_DIVASN:
- case O_MOD:
- case O_MODASN:
- if (vr->val.u == 0) {
- if (!es->noassign)
- evalerr(es, ET_STR, "zero divisor");
- vr->val.u = 1;
- }
- /* calculate the absolute values */
- t1 = vl->val.i < 0 ? -vl->val.u : vl->val.u;
- t2 = vr->val.i < 0 ? -vr->val.u : vr->val.u;
- break;
-#ifndef MKSH_LEGACY_MODE
- case O_LSHIFT:
- case O_LSHIFTASN:
- case O_RSHIFT:
- case O_RSHIFTASN:
- case O_ROL:
- case O_ROLASN:
- case O_ROR:
- case O_RORASN:
- t1 = vl->val.u;
- t2 = vr->val.u & 31;
- break;
-#endif
- case O_LAND:
- case O_LOR:
- t1 = vl->val.u;
- t2 = 0; /* gcc */
- break;
- default:
- t1 = vl->val.u;
- t2 = vr->val.u;
- break;
- }
-
-#define cmpop(op) (es->natural ? \
- (mksh_uari_t)(vl->val.u op vr->val.u) : \
- (mksh_uari_t)(vl->val.i op vr->val.i) \
-)
-
- /* op calculation */
- switch ((int)op) {
- case O_TIMES:
- case O_TIMESASN:
- res = t1 * t2;
- break;
- case O_MOD:
- case O_MODASN:
- if (es->natural) {
- res = vl->val.u % vr->val.u;
- break;
- }
- goto signed_division;
- case O_DIV:
- case O_DIVASN:
- if (es->natural) {
- res = vl->val.u / vr->val.u;
- break;
- }
- signed_division:
- /*
- * a / b = abs(a) / abs(b) * sgn((u)a^(u)b)
- */
- t3 = t1 / t2;
-#ifndef MKSH_LEGACY_MODE
- res = ((vl->val.u ^ vr->val.u) & 0x80000000) ? -t3 : t3;
-#else
- res = ((t1 == vl->val.u ? 0 : 1) ^
- (t2 == vr->val.u ? 0 : 1)) ? -t3 : t3;
-#endif
- if (op == O_MOD || op == O_MODASN) {
- /*
- * primitive modulo, to get the sign of
- * the result correct:
- * (a % b) = a - ((a / b) * b)
- * the subtraction and multiplication
- * are, amazingly enough, sign ignorant
- */
- res = vl->val.u - (res * vr->val.u);
- }
- break;
- case O_PLUS:
- case O_PLUSASN:
- res = t1 + t2;
- break;
- case O_MINUS:
- case O_MINUSASN:
- res = t1 - t2;
- break;
-#ifndef MKSH_LEGACY_MODE
- case O_ROL:
- case O_ROLASN:
- res = (t1 << t2) | (t1 >> (32 - t2));
- break;
- case O_ROR:
- case O_RORASN:
- res = (t1 >> t2) | (t1 << (32 - t2));
- break;
-#endif
- case O_LSHIFT:
- case O_LSHIFTASN:
- res = t1 << t2;
- break;
- case O_RSHIFT:
- case O_RSHIFTASN:
- res = es->natural || vl->val.i >= 0 ?
- t1 >> t2 :
- ~(~t1 >> t2);
- break;
- case O_LT:
- res = cmpop(<);
- break;
- case O_LE:
- res = cmpop(<=);
- break;
- case O_GT:
- res = cmpop(>);
- break;
- case O_GE:
- res = cmpop(>=);
- break;
- case O_EQ:
- res = t1 == t2;
- break;
- case O_NE:
- res = t1 != t2;
- break;
- case O_BAND:
- case O_BANDASN:
- res = t1 & t2;
- break;
- case O_BXOR:
- case O_BXORASN:
- res = t1 ^ t2;
- break;
- case O_BOR:
- case O_BORASN:
- res = t1 | t2;
- break;
- case O_LAND:
- if (!t1)
- es->noassign++;
- vr = intvar(es, evalexpr(es, prec - 1));
- res = t1 && vr->val.u;
- if (!t1)
- es->noassign--;
- break;
- case O_LOR:
- if (t1)
- es->noassign++;
- vr = intvar(es, evalexpr(es, prec - 1));
- res = t1 || vr->val.u;
- if (t1)
- es->noassign--;
- break;
- case O_ASN:
- case O_COMMA:
- res = t2;
- break;
- }
-
-#undef cmpop
-
- if (IS_ASSIGNOP(op)) {
- vr->val.u = res;
- if (!es->noassign) {
- if (vasn->flag & INTEGER)
- setint_v(vasn, vr, es->arith);
- else
- setint(vasn, vr->val.i);
- }
- vl = vr;
- } else
- vl->val.u = res;
- }
- return (vl);
-}
-
-static void
-exprtoken(Expr_state *es)
-{
- const char *cp = es->tokp;
- int c;
- char *tvar;
-
- /* skip whitespace */
- skip_spaces:
- while ((c = *cp), ksh_isspace(c))
- ++cp;
- if (es->tokp == es->expression && c == '#') {
- /* expression begins with # */
- /* switch to unsigned */
- es->natural = true;
- ++cp;
- goto skip_spaces;
- }
- es->tokp = cp;
-
- if (c == '\0')
- es->tok = END;
- else if (ksh_isalphx(c)) {
- for (; ksh_isalnux(c); c = *cp)
- cp++;
- if (c == '[') {
- size_t len;
-
- len = array_ref_len(cp);
- if (len == 0)
- evalerr(es, ET_STR, "missing ]");
- cp += len;
- }
- if (es->noassign) {
- es->val = tempvar();
- es->val->flag |= EXPRLVALUE;
- } else {
- strndupx(tvar, es->tokp, cp - es->tokp, ATEMP);
- es->val = global(tvar);
- afree(tvar, ATEMP);
- }
- es->tok = VAR;
- } else if (c == '1' && cp[1] == '#') {
- cp += 2;
- cp += utf_ptradj(cp);
- strndupx(tvar, es->tokp, cp - es->tokp, ATEMP);
- goto process_tvar;
-#ifndef MKSH_SMALL
- } else if (c == '\'') {
- ++cp;
- cp += utf_ptradj(cp);
- if (*cp++ != '\'')
- evalerr(es, ET_STR,
- "multi-character character constant");
- /* 'x' -> 1#x (x = one multibyte character) */
- c = cp - es->tokp;
- tvar = alloc(c + /* NUL */ 1, ATEMP);
- tvar[0] = '1';
- tvar[1] = '#';
- memcpy(tvar + 2, es->tokp + 1, c - 2);
- tvar[c] = '\0';
- goto process_tvar;
-#endif
- } else if (ksh_isdigit(c)) {
- while (c != '_' && (ksh_isalnux(c) || c == '#'))
- c = *cp++;
- strndupx(tvar, es->tokp, --cp - es->tokp, ATEMP);
- process_tvar:
- es->val = tempvar();
- es->val->flag &= ~INTEGER;
- es->val->type = 0;
- es->val->val.s = tvar;
- if (setint_v(es->val, es->val, es->arith) == NULL)
- evalerr(es, ET_BADLIT, tvar);
- afree(tvar, ATEMP);
- es->tok = LIT;
- } else {
- int i, n0;
-
- for (i = 0; (n0 = opinfo[i].name[0]); i++)
- if (c == n0 && strncmp(cp, opinfo[i].name,
- (size_t)opinfo[i].len) == 0) {
- es->tok = (enum token)i;
- cp += opinfo[i].len;
- break;
- }
- if (!n0)
- es->tok = BAD;
- }
- es->tokp = cp;
-}
-
-static void
-assign_check(Expr_state *es, enum token op, struct tbl *vasn)
-{
- if (es->tok == END || !vasn ||
- (vasn->name[0] == '\0' && !(vasn->flag & EXPRLVALUE)))
- evalerr(es, ET_LVALUE, opinfo[(int)op].name);
- else if (vasn->flag & RDONLY)
- evalerr(es, ET_RDONLY, opinfo[(int)op].name);
-}
-
-struct tbl *
-tempvar(void)
-{
- struct tbl *vp;
-
- vp = alloc(sizeof(struct tbl), ATEMP);
- vp->flag = ISSET|INTEGER;
- vp->type = 0;
- vp->areap = ATEMP;
- vp->ua.hval = 0;
- vp->val.i = 0;
- vp->name[0] = '\0';
- return (vp);
-}
-
-/* cast (string) variable to temporary integer variable */
-static struct tbl *
-intvar(Expr_state *es, struct tbl *vp)
-{
- struct tbl *vq;
-
- /* try to avoid replacing a temp var with another temp var */
- if (vp->name[0] == '\0' &&
- (vp->flag & (ISSET|INTEGER|EXPRLVALUE)) == (ISSET|INTEGER))
- return (vp);
-
- vq = tempvar();
- if (setint_v(vq, vp, es->arith) == NULL) {
- if (vp->flag & EXPRINEVAL)
- evalerr(es, ET_RECURSIVE, vp->name);
- es->evaling = vp;
- vp->flag |= EXPRINEVAL;
- v_evaluate(vq, str_val(vp), KSH_UNWIND_ERROR, es->arith);
- vp->flag &= ~EXPRINEVAL;
- es->evaling = NULL;
- }
- return (vq);
-}
-
-
-/*
- * UTF-8 support code: high-level functions
- */
-
-int
-utf_widthadj(const char *src, const char **dst)
-{
- size_t len;
- unsigned int wc;
- int width;
-
- if (!UTFMODE || (len = utf_mbtowc(&wc, src)) == (size_t)-1 ||
- wc == 0)
- len = width = 1;
- else if ((width = utf_wcwidth(wc)) < 0)
- /* XXX use 2 for x_zotc3 here? */
- width = 1;
-
- if (dst)
- *dst = src + len;
- return (width);
-}
-
-size_t
-utf_mbswidth(const char *s)
-{
- size_t len, width = 0;
- unsigned int wc;
- int cw;
-
- if (!UTFMODE)
- return (strlen(s));
-
- while (*s)
- if (((len = utf_mbtowc(&wc, s)) == (size_t)-1) ||
- ((cw = utf_wcwidth(wc)) == -1)) {
- s++;
- width += 1;
- } else {
- s += len;
- width += cw;
- }
- return (width);
-}
-
-const char *
-utf_skipcols(const char *p, int cols)
-{
- int c = 0;
-
- while (c < cols) {
- if (!*p)
- return (p + cols - c);
- c += utf_widthadj(p, &p);
- }
- return (p);
-}
-
-size_t
-utf_ptradj(const char *src)
-{
- register size_t n;
-
- if (!UTFMODE ||
- *(const unsigned char *)(src) < 0xC2 ||
- (n = utf_mbtowc(NULL, src)) == (size_t)-1)
- n = 1;
- return (n);
-}
-
-/*
- * UTF-8 support code: low-level functions
- */
-
-/* CESU-8 multibyte and wide character conversion crafted for mksh */
-
-size_t
-utf_mbtowc(unsigned int *dst, const char *src)
-{
- const unsigned char *s = (const unsigned char *)src;
- unsigned int c, wc;
-
- if ((wc = *s++) < 0x80) {
- out:
- if (dst != NULL)
- *dst = wc;
- return (wc ? ((const char *)s - src) : 0);
- }
- if (wc < 0xC2 || wc >= 0xF0)
- /* < 0xC0: spurious second byte */
- /* < 0xC2: non-minimalistic mapping error in 2-byte seqs */
- /* > 0xEF: beyond BMP */
- goto ilseq;
-
- if (wc < 0xE0) {
- wc = (wc & 0x1F) << 6;
- if (((c = *s++) & 0xC0) != 0x80)
- goto ilseq;
- wc |= c & 0x3F;
- goto out;
- }
-
- wc = (wc & 0x0F) << 12;
-
- if (((c = *s++) & 0xC0) != 0x80)
- goto ilseq;
- wc |= (c & 0x3F) << 6;
-
- if (((c = *s++) & 0xC0) != 0x80)
- goto ilseq;
- wc |= c & 0x3F;
-
- /* Check for non-minimalistic mapping error in 3-byte seqs */
- if (wc >= 0x0800 && wc <= 0xFFFD)
- goto out;
- ilseq:
- return ((size_t)(-1));
-}
-
-size_t
-utf_wctomb(char *dst, unsigned int wc)
-{
- unsigned char *d;
-
- if (wc < 0x80) {
- *dst = wc;
- return (1);
- }
-
- d = (unsigned char *)dst;
- if (wc < 0x0800)
- *d++ = (wc >> 6) | 0xC0;
- else {
- *d++ = ((wc = wc > 0xFFFD ? 0xFFFD : wc) >> 12) | 0xE0;
- *d++ = ((wc >> 6) & 0x3F) | 0x80;
- }
- *d++ = (wc & 0x3F) | 0x80;
- return ((char *)d - dst);
-}
-
-/*
- * Wrapper around access(2) because it says root can execute everything
- * on some operating systems. Does not set errno, no user needs it. Use
- * this iff mode can have the X_OK bit set, access otherwise.
- */
-int
-ksh_access(const char *fn, int mode)
-{
- int rv;
- struct stat sb;
-
- if ((rv = access(fn, mode)) == 0 && kshuid == 0 && (mode & X_OK) &&
- (rv = stat(fn, &sb)) == 0 && !S_ISDIR(sb.st_mode) &&
- (sb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)) == 0)
- rv = -1;
-
- return (rv);
-}
-
-#ifndef MKSH_mirbsd_wcwidth
-/* From: X11/xc/programs/xterm/wcwidth.c,v 1.6 2013/05/31 23:27:09 tg Exp $ */
-
-struct mb_ucsrange {
- unsigned short beg;
- unsigned short end;
-};
-
-static int mb_ucsbsearch(const struct mb_ucsrange arr[], size_t elems,
- unsigned int val);
-
-/*
- * Generated by MirOS: contrib/code/Snippets/eawparse,v 1.1 2013/05/31 23:27:16 tg Exp $
- * from Unicode 6.2.0
- */
-
-static const struct mb_ucsrange mb_ucs_combining[] = {
- { 0x0300, 0x036F },
- { 0x0483, 0x0489 },
- { 0x0591, 0x05BD },
- { 0x05BF, 0x05BF },
- { 0x05C1, 0x05C2 },
- { 0x05C4, 0x05C5 },
- { 0x05C7, 0x05C7 },
- { 0x0600, 0x0604 },
- { 0x0610, 0x061A },
- { 0x064B, 0x065F },
- { 0x0670, 0x0670 },
- { 0x06D6, 0x06DD },
- { 0x06DF, 0x06E4 },
- { 0x06E7, 0x06E8 },
- { 0x06EA, 0x06ED },
- { 0x070F, 0x070F },
- { 0x0711, 0x0711 },
- { 0x0730, 0x074A },
- { 0x07A6, 0x07B0 },
- { 0x07EB, 0x07F3 },
- { 0x0816, 0x0819 },
- { 0x081B, 0x0823 },
- { 0x0825, 0x0827 },
- { 0x0829, 0x082D },
- { 0x0859, 0x085B },
- { 0x08E4, 0x08FE },
- { 0x0900, 0x0902 },
- { 0x093A, 0x093A },
- { 0x093C, 0x093C },
- { 0x0941, 0x0948 },
- { 0x094D, 0x094D },
- { 0x0951, 0x0957 },
- { 0x0962, 0x0963 },
- { 0x0981, 0x0981 },
- { 0x09BC, 0x09BC },
- { 0x09C1, 0x09C4 },
- { 0x09CD, 0x09CD },
- { 0x09E2, 0x09E3 },
- { 0x0A01, 0x0A02 },
- { 0x0A3C, 0x0A3C },
- { 0x0A41, 0x0A42 },
- { 0x0A47, 0x0A48 },
- { 0x0A4B, 0x0A4D },
- { 0x0A51, 0x0A51 },
- { 0x0A70, 0x0A71 },
- { 0x0A75, 0x0A75 },
- { 0x0A81, 0x0A82 },
- { 0x0ABC, 0x0ABC },
- { 0x0AC1, 0x0AC5 },
- { 0x0AC7, 0x0AC8 },
- { 0x0ACD, 0x0ACD },
- { 0x0AE2, 0x0AE3 },
- { 0x0B01, 0x0B01 },
- { 0x0B3C, 0x0B3C },
- { 0x0B3F, 0x0B3F },
- { 0x0B41, 0x0B44 },
- { 0x0B4D, 0x0B4D },
- { 0x0B56, 0x0B56 },
- { 0x0B62, 0x0B63 },
- { 0x0B82, 0x0B82 },
- { 0x0BC0, 0x0BC0 },
- { 0x0BCD, 0x0BCD },
- { 0x0C3E, 0x0C40 },
- { 0x0C46, 0x0C48 },
- { 0x0C4A, 0x0C4D },
- { 0x0C55, 0x0C56 },
- { 0x0C62, 0x0C63 },
- { 0x0CBC, 0x0CBC },
- { 0x0CBF, 0x0CBF },
- { 0x0CC6, 0x0CC6 },
- { 0x0CCC, 0x0CCD },
- { 0x0CE2, 0x0CE3 },
- { 0x0D41, 0x0D44 },
- { 0x0D4D, 0x0D4D },
- { 0x0D62, 0x0D63 },
- { 0x0DCA, 0x0DCA },
- { 0x0DD2, 0x0DD4 },
- { 0x0DD6, 0x0DD6 },
- { 0x0E31, 0x0E31 },
- { 0x0E34, 0x0E3A },
- { 0x0E47, 0x0E4E },
- { 0x0EB1, 0x0EB1 },
- { 0x0EB4, 0x0EB9 },
- { 0x0EBB, 0x0EBC },
- { 0x0EC8, 0x0ECD },
- { 0x0F18, 0x0F19 },
- { 0x0F35, 0x0F35 },
- { 0x0F37, 0x0F37 },
- { 0x0F39, 0x0F39 },
- { 0x0F71, 0x0F7E },
- { 0x0F80, 0x0F84 },
- { 0x0F86, 0x0F87 },
- { 0x0F8D, 0x0F97 },
- { 0x0F99, 0x0FBC },
- { 0x0FC6, 0x0FC6 },
- { 0x102D, 0x1030 },
- { 0x1032, 0x1037 },
- { 0x1039, 0x103A },
- { 0x103D, 0x103E },
- { 0x1058, 0x1059 },
- { 0x105E, 0x1060 },
- { 0x1071, 0x1074 },
- { 0x1082, 0x1082 },
- { 0x1085, 0x1086 },
- { 0x108D, 0x108D },
- { 0x109D, 0x109D },
- { 0x1160, 0x11FF },
- { 0x135D, 0x135F },
- { 0x1712, 0x1714 },
- { 0x1732, 0x1734 },
- { 0x1752, 0x1753 },
- { 0x1772, 0x1773 },
- { 0x17B4, 0x17B5 },
- { 0x17B7, 0x17BD },
- { 0x17C6, 0x17C6 },
- { 0x17C9, 0x17D3 },
- { 0x17DD, 0x17DD },
- { 0x180B, 0x180D },
- { 0x18A9, 0x18A9 },
- { 0x1920, 0x1922 },
- { 0x1927, 0x1928 },
- { 0x1932, 0x1932 },
- { 0x1939, 0x193B },
- { 0x1A17, 0x1A18 },
- { 0x1A56, 0x1A56 },
- { 0x1A58, 0x1A5E },
- { 0x1A60, 0x1A60 },
- { 0x1A62, 0x1A62 },
- { 0x1A65, 0x1A6C },
- { 0x1A73, 0x1A7C },
- { 0x1A7F, 0x1A7F },
- { 0x1B00, 0x1B03 },
- { 0x1B34, 0x1B34 },
- { 0x1B36, 0x1B3A },
- { 0x1B3C, 0x1B3C },
- { 0x1B42, 0x1B42 },
- { 0x1B6B, 0x1B73 },
- { 0x1B80, 0x1B81 },
- { 0x1BA2, 0x1BA5 },
- { 0x1BA8, 0x1BA9 },
- { 0x1BAB, 0x1BAB },
- { 0x1BE6, 0x1BE6 },
- { 0x1BE8, 0x1BE9 },
- { 0x1BED, 0x1BED },
- { 0x1BEF, 0x1BF1 },
- { 0x1C2C, 0x1C33 },
- { 0x1C36, 0x1C37 },
- { 0x1CD0, 0x1CD2 },
- { 0x1CD4, 0x1CE0 },
- { 0x1CE2, 0x1CE8 },
- { 0x1CED, 0x1CED },
- { 0x1CF4, 0x1CF4 },
- { 0x1DC0, 0x1DE6 },
- { 0x1DFC, 0x1DFF },
- { 0x200B, 0x200F },
- { 0x202A, 0x202E },
- { 0x2060, 0x2064 },
- { 0x206A, 0x206F },
- { 0x20D0, 0x20F0 },
- { 0x2CEF, 0x2CF1 },
- { 0x2D7F, 0x2D7F },
- { 0x2DE0, 0x2DFF },
- { 0x302A, 0x302D },
- { 0x3099, 0x309A },
- { 0xA66F, 0xA672 },
- { 0xA674, 0xA67D },
- { 0xA69F, 0xA69F },
- { 0xA6F0, 0xA6F1 },
- { 0xA802, 0xA802 },
- { 0xA806, 0xA806 },
- { 0xA80B, 0xA80B },
- { 0xA825, 0xA826 },
- { 0xA8C4, 0xA8C4 },
- { 0xA8E0, 0xA8F1 },
- { 0xA926, 0xA92D },
- { 0xA947, 0xA951 },
- { 0xA980, 0xA982 },
- { 0xA9B3, 0xA9B3 },
- { 0xA9B6, 0xA9B9 },
- { 0xA9BC, 0xA9BC },
- { 0xAA29, 0xAA2E },
- { 0xAA31, 0xAA32 },
- { 0xAA35, 0xAA36 },
- { 0xAA43, 0xAA43 },
- { 0xAA4C, 0xAA4C },
- { 0xAAB0, 0xAAB0 },
- { 0xAAB2, 0xAAB4 },
- { 0xAAB7, 0xAAB8 },
- { 0xAABE, 0xAABF },
- { 0xAAC1, 0xAAC1 },
- { 0xAAEC, 0xAAED },
- { 0xAAF6, 0xAAF6 },
- { 0xABE5, 0xABE5 },
- { 0xABE8, 0xABE8 },
- { 0xABED, 0xABED },
- { 0xFB1E, 0xFB1E },
- { 0xFE00, 0xFE0F },
- { 0xFE20, 0xFE26 },
- { 0xFEFF, 0xFEFF },
- { 0xFFF9, 0xFFFB }
-};
-
-static const struct mb_ucsrange mb_ucs_fullwidth[] = {
- { 0x1100, 0x115F },
- { 0x2329, 0x232A },
- { 0x2E80, 0x303E },
- { 0x3040, 0xA4CF },
- { 0xA960, 0xA97F },
- { 0xAC00, 0xD7A3 },
- { 0xF900, 0xFAFF },
- { 0xFE10, 0xFE19 },
- { 0xFE30, 0xFE6F },
- { 0xFF00, 0xFF60 },
- { 0xFFE0, 0xFFE6 }
-};
-
-/* simple binary search in ranges, with bounds optimisation */
-static int
-mb_ucsbsearch(const struct mb_ucsrange arr[], size_t elems, unsigned int val)
-{
- size_t min = 0, mid, max = elems;
-
- if (val < arr[min].beg || val > arr[max - 1].end)
- return (0);
-
- while (min < max) {
- mid = (min + max) / 2;
-
- if (val < arr[mid].beg)
- max = mid;
- else if (val > arr[mid].end)
- min = mid + 1;
- else
- return (1);
- }
- return (0);
-}
-
-/* Unix column width of a wide character (Unicode code point, really) */
-int
-utf_wcwidth(unsigned int wc)
-{
- /* except NUL, C0/C1 control characters and DEL yield -1 */
- if (wc < 0x20 || (wc >= 0x7F && wc < 0xA0))
- return (wc ? -1 : 0);
-
- /* combining characters use 0 screen columns */
- if (mb_ucsbsearch(mb_ucs_combining, NELEM(mb_ucs_combining), wc))
- return (0);
-
- /* all others use 1 or 2 screen columns */
- if (mb_ucsbsearch(mb_ucs_fullwidth, NELEM(mb_ucs_fullwidth), wc))
- return (2);
- return (1);
-}
-#endif
Copied: vendor/MirOS/mksh/R50/expr.c (from rev 6707, vendor/MirOS/mksh/dist/expr.c)
===================================================================
--- vendor/MirOS/mksh/R50/expr.c (rev 0)
+++ vendor/MirOS/mksh/R50/expr.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1197 @@
+/* $OpenBSD: expr.c,v 1.23 2013/12/17 16:37:06 deraadt Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+
+__RCSID("$MirOS: src/bin/mksh/expr.c,v 1.76 2014/06/24 19:53:19 tg Exp $");
+
+/* the order of these enums is constrained by the order of opinfo[] */
+enum token {
+ /* some (long) unary operators */
+ O_PLUSPLUS = 0, O_MINUSMINUS,
+ /* binary operators */
+ O_EQ, O_NE,
+ /* assignments are assumed to be in range O_ASN .. O_BORASN */
+ O_ASN, O_TIMESASN, O_DIVASN, O_MODASN, O_PLUSASN, O_MINUSASN,
+#ifndef MKSH_LEGACY_MODE
+ O_ROLASN, O_RORASN,
+#endif
+ O_LSHIFTASN, O_RSHIFTASN, O_BANDASN, O_BXORASN, O_BORASN,
+ /* binary non-assignment operators */
+#ifndef MKSH_LEGACY_MODE
+ O_ROL, O_ROR,
+#endif
+ O_LSHIFT, O_RSHIFT,
+ O_LE, O_GE, O_LT, O_GT,
+ O_LAND,
+ O_LOR,
+ O_TIMES, O_DIV, O_MOD,
+ O_PLUS, O_MINUS,
+ O_BAND,
+ O_BXOR,
+ O_BOR,
+ O_TERN,
+ O_COMMA,
+ /* things after this aren't used as binary operators */
+ /* unary that are not also binaries */
+ O_BNOT, O_LNOT,
+ /* misc */
+ OPEN_PAREN, CLOSE_PAREN, CTERN,
+ /* things that don't appear in the opinfo[] table */
+ VAR, LIT, END, BAD
+};
+#define IS_ASSIGNOP(op) ((int)(op) >= (int)O_ASN && (int)(op) <= (int)O_BORASN)
+
+/* precisions; used to be enum prec but we do arithmetics on it */
+#define P_PRIMARY 0 /* VAR, LIT, (), ! ~ ++ -- */
+#define P_MULT 1 /* * / % */
+#define P_ADD 2 /* + - */
+#define P_SHIFT 3 /* <<< >>> << >> */
+#define P_RELATION 4 /* < <= > >= */
+#define P_EQUALITY 5 /* == != */
+#define P_BAND 6 /* & */
+#define P_BXOR 7 /* ^ */
+#define P_BOR 8 /* | */
+#define P_LAND 9 /* && */
+#define P_LOR 10 /* || */
+#define P_TERN 11 /* ?: */
+ /* = += -= *= /= %= <<<= >>>= <<= >>= &= ^= |= */
+#define P_ASSIGN 12
+#define P_COMMA 13 /* , */
+#define MAX_PREC P_COMMA
+
+struct opinfo {
+ char name[5];
+ /* name length */
+ uint8_t len;
+ /* precedence: lower is higher */
+ uint8_t prec;
+};
+
+/*
+ * Tokens in this table must be ordered so the longest are first
+ * (eg, += before +). If you change something, change the order
+ * of enum token too.
+ */
+static const struct opinfo opinfo[] = {
+ { "++", 2, P_PRIMARY }, /* before + */
+ { "--", 2, P_PRIMARY }, /* before - */
+ { "==", 2, P_EQUALITY }, /* before = */
+ { "!=", 2, P_EQUALITY }, /* before ! */
+ { "=", 1, P_ASSIGN }, /* keep assigns in a block */
+ { "*=", 2, P_ASSIGN },
+ { "/=", 2, P_ASSIGN },
+ { "%=", 2, P_ASSIGN },
+ { "+=", 2, P_ASSIGN },
+ { "-=", 2, P_ASSIGN },
+#ifndef MKSH_LEGACY_MODE
+ { "<<<=", 4, P_ASSIGN }, /* before <<< */
+ { ">>>=", 4, P_ASSIGN }, /* before >>> */
+#endif
+ { "<<=", 3, P_ASSIGN },
+ { ">>=", 3, P_ASSIGN },
+ { "&=", 2, P_ASSIGN },
+ { "^=", 2, P_ASSIGN },
+ { "|=", 2, P_ASSIGN },
+#ifndef MKSH_LEGACY_MODE
+ { "<<<", 3, P_SHIFT }, /* before << */
+ { ">>>", 3, P_SHIFT }, /* before >> */
+#endif
+ { "<<", 2, P_SHIFT },
+ { ">>", 2, P_SHIFT },
+ { "<=", 2, P_RELATION },
+ { ">=", 2, P_RELATION },
+ { "<", 1, P_RELATION },
+ { ">", 1, P_RELATION },
+ { "&&", 2, P_LAND },
+ { "||", 2, P_LOR },
+ { "*", 1, P_MULT },
+ { "/", 1, P_MULT },
+ { "%", 1, P_MULT },
+ { "+", 1, P_ADD },
+ { "-", 1, P_ADD },
+ { "&", 1, P_BAND },
+ { "^", 1, P_BXOR },
+ { "|", 1, P_BOR },
+ { "?", 1, P_TERN },
+ { ",", 1, P_COMMA },
+ { "~", 1, P_PRIMARY },
+ { "!", 1, P_PRIMARY },
+ { "(", 1, P_PRIMARY },
+ { ")", 1, P_PRIMARY },
+ { ":", 1, P_PRIMARY },
+ { "", 0, P_PRIMARY }
+};
+
+typedef struct expr_state {
+ /* expression being evaluated */
+ const char *expression;
+ /* lexical position */
+ const char *tokp;
+ /* value from token() */
+ struct tbl *val;
+ /* variable that is being recursively expanded (EXPRINEVAL flag set) */
+ struct tbl *evaling;
+ /* token from token() */
+ enum token tok;
+ /* don't do assignments (for ?:, &&, ||) */
+ uint8_t noassign;
+ /* evaluating an $(()) expression? */
+ bool arith;
+ /* unsigned arithmetic calculation */
+ bool natural;
+} Expr_state;
+
+enum error_type {
+ ET_UNEXPECTED, ET_BADLIT, ET_RECURSIVE,
+ ET_LVALUE, ET_RDONLY, ET_STR
+};
+
+static void evalerr(Expr_state *, enum error_type, const char *)
+ MKSH_A_NORETURN;
+static struct tbl *evalexpr(Expr_state *, unsigned int);
+static void exprtoken(Expr_state *);
+static struct tbl *do_ppmm(Expr_state *, enum token, struct tbl *, bool);
+static void assign_check(Expr_state *, enum token, struct tbl *);
+static struct tbl *intvar(Expr_state *, struct tbl *);
+
+/*
+ * parse and evaluate expression
+ */
+int
+evaluate(const char *expr, mksh_ari_t *rval, int error_ok, bool arith)
+{
+ struct tbl v;
+ int ret;
+
+ v.flag = DEFINED | INTEGER;
+ v.type = 0;
+ ret = v_evaluate(&v, expr, error_ok, arith);
+ *rval = v.val.i;
+ return (ret);
+}
+
+/*
+ * parse and evaluate expression, storing result in vp.
+ */
+int
+v_evaluate(struct tbl *vp, const char *expr, volatile int error_ok,
+ bool arith)
+{
+ struct tbl *v;
+ Expr_state curstate;
+ Expr_state * const es = &curstate;
+ int i;
+
+ /* save state to allow recursive calls */
+ memset(&curstate, 0, sizeof(curstate));
+ curstate.expression = curstate.tokp = expr;
+ curstate.tok = BAD;
+ curstate.arith = arith;
+
+ newenv(E_ERRH);
+ if ((i = kshsetjmp(e->jbuf))) {
+ /* Clear EXPRINEVAL in of any variables we were playing with */
+ if (curstate.evaling)
+ curstate.evaling->flag &= ~EXPRINEVAL;
+ quitenv(NULL);
+ if (i == LAEXPR) {
+ if (error_ok == KSH_RETURN_ERROR)
+ return (0);
+ errorfz();
+ }
+ unwind(i);
+ /* NOTREACHED */
+ }
+
+ exprtoken(es);
+ if (es->tok == END) {
+ es->tok = LIT;
+ es->val = tempvar();
+ }
+ v = intvar(es, evalexpr(es, MAX_PREC));
+
+ if (es->tok != END)
+ evalerr(es, ET_UNEXPECTED, NULL);
+
+ if (es->arith && es->natural)
+ vp->flag |= INT_U;
+ if (vp->flag & INTEGER)
+ setint_v(vp, v, es->arith);
+ else
+ /* can fail if readonly */
+ setstr(vp, str_val(v), error_ok);
+
+ quitenv(NULL);
+
+ return (1);
+}
+
+static void
+evalerr(Expr_state *es, enum error_type type, const char *str)
+{
+ char tbuf[2];
+ const char *s;
+
+ es->arith = false;
+ switch (type) {
+ case ET_UNEXPECTED:
+ switch (es->tok) {
+ case VAR:
+ s = es->val->name;
+ break;
+ case LIT:
+ s = str_val(es->val);
+ break;
+ case END:
+ s = "end of expression";
+ break;
+ case BAD:
+ tbuf[0] = *es->tokp;
+ tbuf[1] = '\0';
+ s = tbuf;
+ break;
+ default:
+ s = opinfo[(int)es->tok].name;
+ }
+ warningf(true, "%s: %s '%s'", es->expression,
+ "unexpected", s);
+ break;
+
+ case ET_BADLIT:
+ warningf(true, "%s: %s '%s'", es->expression,
+ "bad number", str);
+ break;
+
+ case ET_RECURSIVE:
+ warningf(true, "%s: %s '%s'", es->expression,
+ "expression recurses on parameter", str);
+ break;
+
+ case ET_LVALUE:
+ warningf(true, "%s: %s %s",
+ es->expression, str, "requires lvalue");
+ break;
+
+ case ET_RDONLY:
+ warningf(true, "%s: %s %s",
+ es->expression, str, "applied to read-only variable");
+ break;
+
+ default: /* keep gcc happy */
+ case ET_STR:
+ warningf(true, "%s: %s", es->expression, str);
+ break;
+ }
+ unwind(LAEXPR);
+}
+
+/* do a ++ or -- operation */
+static struct tbl *
+do_ppmm(Expr_state *es, enum token op, struct tbl *vasn, bool is_prefix)
+{
+ struct tbl *vl;
+ mksh_uari_t oval;
+
+ assign_check(es, op, vasn);
+
+ vl = intvar(es, vasn);
+ oval = vl->val.u;
+ if (op == O_PLUSPLUS)
+ ++vl->val.u;
+ else
+ --vl->val.u;
+ if (!es->noassign) {
+ if (vasn->flag & INTEGER)
+ setint_v(vasn, vl, es->arith);
+ else
+ setint(vasn, vl->val.i);
+ }
+ if (!is_prefix)
+ /* undo the increment/decrement */
+ vl->val.u = oval;
+
+ return (vl);
+}
+
+static struct tbl *
+evalexpr(Expr_state *es, unsigned int prec)
+{
+ struct tbl *vl, *vr = NULL, *vasn;
+ enum token op;
+ mksh_uari_t res = 0, t1, t2, t3;
+
+ if (prec == P_PRIMARY) {
+ switch ((int)(op = es->tok)) {
+ case O_BNOT:
+ case O_LNOT:
+ case O_MINUS:
+ case O_PLUS:
+ exprtoken(es);
+ vl = intvar(es, evalexpr(es, P_PRIMARY));
+ switch ((int)op) {
+ case O_BNOT:
+ vl->val.u = ~vl->val.u;
+ break;
+ case O_LNOT:
+ vl->val.u = !vl->val.u;
+ break;
+ case O_MINUS:
+ vl->val.u = -vl->val.u;
+ break;
+ case O_PLUS:
+ /* nop */
+ break;
+ }
+ break;
+
+ case OPEN_PAREN:
+ exprtoken(es);
+ vl = evalexpr(es, MAX_PREC);
+ if (es->tok != CLOSE_PAREN)
+ evalerr(es, ET_STR, "missing )");
+ exprtoken(es);
+ break;
+
+ case O_PLUSPLUS:
+ case O_MINUSMINUS:
+ exprtoken(es);
+ vl = do_ppmm(es, op, es->val, true);
+ exprtoken(es);
+ break;
+
+ case VAR:
+ case LIT:
+ vl = es->val;
+ exprtoken(es);
+ break;
+
+ default:
+ evalerr(es, ET_UNEXPECTED, NULL);
+ /* NOTREACHED */
+ }
+
+ if (es->tok == O_PLUSPLUS || es->tok == O_MINUSMINUS) {
+ vl = do_ppmm(es, es->tok, vl, false);
+ exprtoken(es);
+ }
+
+ return (vl);
+ /* prec == P_PRIMARY */
+ }
+
+ vl = evalexpr(es, prec - 1);
+ while ((int)(op = es->tok) >= (int)O_EQ && (int)op <= (int)O_COMMA &&
+ opinfo[(int)op].prec == prec) {
+ exprtoken(es);
+ vasn = vl;
+ if (op != O_ASN)
+ /* vl may not have a value yet */
+ vl = intvar(es, vl);
+ if (IS_ASSIGNOP(op)) {
+ if (!es->noassign)
+ assign_check(es, op, vasn);
+ vr = intvar(es, evalexpr(es, P_ASSIGN));
+ } else if (op == O_TERN) {
+ bool ev = vl->val.u != 0;
+
+ if (!ev)
+ es->noassign++;
+ vl = evalexpr(es, MAX_PREC);
+ if (!ev)
+ es->noassign--;
+ if (es->tok != CTERN)
+ evalerr(es, ET_STR, "missing :");
+ exprtoken(es);
+ if (ev)
+ es->noassign++;
+ vr = evalexpr(es, P_TERN);
+ if (ev)
+ es->noassign--;
+ vl = ev ? vl : vr;
+ continue;
+ } else if (op != O_LAND && op != O_LOR)
+ vr = intvar(es, evalexpr(es, prec - 1));
+
+ /* common ops setup */
+ switch ((int)op) {
+ case O_DIV:
+ case O_DIVASN:
+ case O_MOD:
+ case O_MODASN:
+ if (vr->val.u == 0) {
+ if (!es->noassign)
+ evalerr(es, ET_STR, "zero divisor");
+ vr->val.u = 1;
+ }
+ /* calculate the absolute values */
+ t1 = vl->val.i < 0 ? -vl->val.u : vl->val.u;
+ t2 = vr->val.i < 0 ? -vr->val.u : vr->val.u;
+ break;
+#ifndef MKSH_LEGACY_MODE
+ case O_LSHIFT:
+ case O_LSHIFTASN:
+ case O_RSHIFT:
+ case O_RSHIFTASN:
+ case O_ROL:
+ case O_ROLASN:
+ case O_ROR:
+ case O_RORASN:
+ t1 = vl->val.u;
+ t2 = vr->val.u & 31;
+ break;
+#endif
+ case O_LAND:
+ case O_LOR:
+ t1 = vl->val.u;
+ t2 = 0; /* gcc */
+ break;
+ default:
+ t1 = vl->val.u;
+ t2 = vr->val.u;
+ break;
+ }
+
+#define cmpop(op) (es->natural ? \
+ (mksh_uari_t)(vl->val.u op vr->val.u) : \
+ (mksh_uari_t)(vl->val.i op vr->val.i) \
+)
+
+ /* op calculation */
+ switch ((int)op) {
+ case O_TIMES:
+ case O_TIMESASN:
+ res = t1 * t2;
+ break;
+ case O_MOD:
+ case O_MODASN:
+ if (es->natural) {
+ res = vl->val.u % vr->val.u;
+ break;
+ }
+ goto signed_division;
+ case O_DIV:
+ case O_DIVASN:
+ if (es->natural) {
+ res = vl->val.u / vr->val.u;
+ break;
+ }
+ signed_division:
+ /*
+ * a / b = abs(a) / abs(b) * sgn((u)a^(u)b)
+ */
+ t3 = t1 / t2;
+#ifndef MKSH_LEGACY_MODE
+ res = ((vl->val.u ^ vr->val.u) & 0x80000000) ? -t3 : t3;
+#else
+ res = ((t1 == vl->val.u ? 0 : 1) ^
+ (t2 == vr->val.u ? 0 : 1)) ? -t3 : t3;
+#endif
+ if (op == O_MOD || op == O_MODASN) {
+ /*
+ * primitive modulo, to get the sign of
+ * the result correct:
+ * (a % b) = a - ((a / b) * b)
+ * the subtraction and multiplication
+ * are, amazingly enough, sign ignorant
+ */
+ res = vl->val.u - (res * vr->val.u);
+ }
+ break;
+ case O_PLUS:
+ case O_PLUSASN:
+ res = t1 + t2;
+ break;
+ case O_MINUS:
+ case O_MINUSASN:
+ res = t1 - t2;
+ break;
+#ifndef MKSH_LEGACY_MODE
+ case O_ROL:
+ case O_ROLASN:
+ res = (t1 << t2) | (t1 >> (32 - t2));
+ break;
+ case O_ROR:
+ case O_RORASN:
+ res = (t1 >> t2) | (t1 << (32 - t2));
+ break;
+#endif
+ case O_LSHIFT:
+ case O_LSHIFTASN:
+ res = t1 << t2;
+ break;
+ case O_RSHIFT:
+ case O_RSHIFTASN:
+ res = es->natural || vl->val.i >= 0 ?
+ t1 >> t2 :
+ ~(~t1 >> t2);
+ break;
+ case O_LT:
+ res = cmpop(<);
+ break;
+ case O_LE:
+ res = cmpop(<=);
+ break;
+ case O_GT:
+ res = cmpop(>);
+ break;
+ case O_GE:
+ res = cmpop(>=);
+ break;
+ case O_EQ:
+ res = t1 == t2;
+ break;
+ case O_NE:
+ res = t1 != t2;
+ break;
+ case O_BAND:
+ case O_BANDASN:
+ res = t1 & t2;
+ break;
+ case O_BXOR:
+ case O_BXORASN:
+ res = t1 ^ t2;
+ break;
+ case O_BOR:
+ case O_BORASN:
+ res = t1 | t2;
+ break;
+ case O_LAND:
+ if (!t1)
+ es->noassign++;
+ vr = intvar(es, evalexpr(es, prec - 1));
+ res = t1 && vr->val.u;
+ if (!t1)
+ es->noassign--;
+ break;
+ case O_LOR:
+ if (t1)
+ es->noassign++;
+ vr = intvar(es, evalexpr(es, prec - 1));
+ res = t1 || vr->val.u;
+ if (t1)
+ es->noassign--;
+ break;
+ case O_ASN:
+ case O_COMMA:
+ res = t2;
+ break;
+ }
+
+#undef cmpop
+
+ if (IS_ASSIGNOP(op)) {
+ vr->val.u = res;
+ if (!es->noassign) {
+ if (vasn->flag & INTEGER)
+ setint_v(vasn, vr, es->arith);
+ else
+ setint(vasn, vr->val.i);
+ }
+ vl = vr;
+ } else
+ vl->val.u = res;
+ }
+ return (vl);
+}
+
+static void
+exprtoken(Expr_state *es)
+{
+ const char *cp = es->tokp;
+ int c;
+ char *tvar;
+
+ /* skip whitespace */
+ skip_spaces:
+ while ((c = *cp), ksh_isspace(c))
+ ++cp;
+ if (es->tokp == es->expression && c == '#') {
+ /* expression begins with # */
+ /* switch to unsigned */
+ es->natural = true;
+ ++cp;
+ goto skip_spaces;
+ }
+ es->tokp = cp;
+
+ if (c == '\0')
+ es->tok = END;
+ else if (ksh_isalphx(c)) {
+ for (; ksh_isalnux(c); c = *cp)
+ cp++;
+ if (c == '[') {
+ size_t len;
+
+ len = array_ref_len(cp);
+ if (len == 0)
+ evalerr(es, ET_STR, "missing ]");
+ cp += len;
+ }
+ if (es->noassign) {
+ es->val = tempvar();
+ es->val->flag |= EXPRLVALUE;
+ } else {
+ strndupx(tvar, es->tokp, cp - es->tokp, ATEMP);
+ es->val = global(tvar);
+ afree(tvar, ATEMP);
+ }
+ es->tok = VAR;
+ } else if (c == '1' && cp[1] == '#') {
+ cp += 2;
+ cp += utf_ptradj(cp);
+ strndupx(tvar, es->tokp, cp - es->tokp, ATEMP);
+ goto process_tvar;
+#ifndef MKSH_SMALL
+ } else if (c == '\'') {
+ ++cp;
+ cp += utf_ptradj(cp);
+ if (*cp++ != '\'')
+ evalerr(es, ET_STR,
+ "multi-character character constant");
+ /* 'x' -> 1#x (x = one multibyte character) */
+ c = cp - es->tokp;
+ tvar = alloc(c + /* NUL */ 1, ATEMP);
+ tvar[0] = '1';
+ tvar[1] = '#';
+ memcpy(tvar + 2, es->tokp + 1, c - 2);
+ tvar[c] = '\0';
+ goto process_tvar;
+#endif
+ } else if (ksh_isdigit(c)) {
+ while (c != '_' && (ksh_isalnux(c) || c == '#'))
+ c = *cp++;
+ strndupx(tvar, es->tokp, --cp - es->tokp, ATEMP);
+ process_tvar:
+ es->val = tempvar();
+ es->val->flag &= ~INTEGER;
+ es->val->type = 0;
+ es->val->val.s = tvar;
+ if (setint_v(es->val, es->val, es->arith) == NULL)
+ evalerr(es, ET_BADLIT, tvar);
+ afree(tvar, ATEMP);
+ es->tok = LIT;
+ } else {
+ int i, n0;
+
+ for (i = 0; (n0 = opinfo[i].name[0]); i++)
+ if (c == n0 && strncmp(cp, opinfo[i].name,
+ (size_t)opinfo[i].len) == 0) {
+ es->tok = (enum token)i;
+ cp += opinfo[i].len;
+ break;
+ }
+ if (!n0)
+ es->tok = BAD;
+ }
+ es->tokp = cp;
+}
+
+static void
+assign_check(Expr_state *es, enum token op, struct tbl *vasn)
+{
+ if (es->tok == END || !vasn ||
+ (vasn->name[0] == '\0' && !(vasn->flag & EXPRLVALUE)))
+ evalerr(es, ET_LVALUE, opinfo[(int)op].name);
+ else if (vasn->flag & RDONLY)
+ evalerr(es, ET_RDONLY, opinfo[(int)op].name);
+}
+
+struct tbl *
+tempvar(void)
+{
+ struct tbl *vp;
+
+ vp = alloc(sizeof(struct tbl), ATEMP);
+ vp->flag = ISSET|INTEGER;
+ vp->type = 0;
+ vp->areap = ATEMP;
+ vp->ua.hval = 0;
+ vp->val.i = 0;
+ vp->name[0] = '\0';
+ return (vp);
+}
+
+/* cast (string) variable to temporary integer variable */
+static struct tbl *
+intvar(Expr_state *es, struct tbl *vp)
+{
+ struct tbl *vq;
+
+ /* try to avoid replacing a temp var with another temp var */
+ if (vp->name[0] == '\0' &&
+ (vp->flag & (ISSET|INTEGER|EXPRLVALUE)) == (ISSET|INTEGER))
+ return (vp);
+
+ vq = tempvar();
+ if (setint_v(vq, vp, es->arith) == NULL) {
+ if (vp->flag & EXPRINEVAL)
+ evalerr(es, ET_RECURSIVE, vp->name);
+ es->evaling = vp;
+ vp->flag |= EXPRINEVAL;
+ v_evaluate(vq, str_val(vp), KSH_UNWIND_ERROR, es->arith);
+ vp->flag &= ~EXPRINEVAL;
+ es->evaling = NULL;
+ }
+ return (vq);
+}
+
+
+/*
+ * UTF-8 support code: high-level functions
+ */
+
+int
+utf_widthadj(const char *src, const char **dst)
+{
+ size_t len;
+ unsigned int wc;
+ int width;
+
+ if (!UTFMODE || (len = utf_mbtowc(&wc, src)) == (size_t)-1 ||
+ wc == 0)
+ len = width = 1;
+ else if ((width = utf_wcwidth(wc)) < 0)
+ /* XXX use 2 for x_zotc3 here? */
+ width = 1;
+
+ if (dst)
+ *dst = src + len;
+ return (width);
+}
+
+size_t
+utf_mbswidth(const char *s)
+{
+ size_t len, width = 0;
+ unsigned int wc;
+ int cw;
+
+ if (!UTFMODE)
+ return (strlen(s));
+
+ while (*s)
+ if (((len = utf_mbtowc(&wc, s)) == (size_t)-1) ||
+ ((cw = utf_wcwidth(wc)) == -1)) {
+ s++;
+ width += 1;
+ } else {
+ s += len;
+ width += cw;
+ }
+ return (width);
+}
+
+const char *
+utf_skipcols(const char *p, int cols)
+{
+ int c = 0;
+
+ while (c < cols) {
+ if (!*p)
+ return (p + cols - c);
+ c += utf_widthadj(p, &p);
+ }
+ return (p);
+}
+
+size_t
+utf_ptradj(const char *src)
+{
+ register size_t n;
+
+ if (!UTFMODE ||
+ *(const unsigned char *)(src) < 0xC2 ||
+ (n = utf_mbtowc(NULL, src)) == (size_t)-1)
+ n = 1;
+ return (n);
+}
+
+/*
+ * UTF-8 support code: low-level functions
+ */
+
+/* CESU-8 multibyte and wide character conversion crafted for mksh */
+
+size_t
+utf_mbtowc(unsigned int *dst, const char *src)
+{
+ const unsigned char *s = (const unsigned char *)src;
+ unsigned int c, wc;
+
+ if ((wc = *s++) < 0x80) {
+ out:
+ if (dst != NULL)
+ *dst = wc;
+ return (wc ? ((const char *)s - src) : 0);
+ }
+ if (wc < 0xC2 || wc >= 0xF0)
+ /* < 0xC0: spurious second byte */
+ /* < 0xC2: non-minimalistic mapping error in 2-byte seqs */
+ /* > 0xEF: beyond BMP */
+ goto ilseq;
+
+ if (wc < 0xE0) {
+ wc = (wc & 0x1F) << 6;
+ if (((c = *s++) & 0xC0) != 0x80)
+ goto ilseq;
+ wc |= c & 0x3F;
+ goto out;
+ }
+
+ wc = (wc & 0x0F) << 12;
+
+ if (((c = *s++) & 0xC0) != 0x80)
+ goto ilseq;
+ wc |= (c & 0x3F) << 6;
+
+ if (((c = *s++) & 0xC0) != 0x80)
+ goto ilseq;
+ wc |= c & 0x3F;
+
+ /* Check for non-minimalistic mapping error in 3-byte seqs */
+ if (wc >= 0x0800 && wc <= 0xFFFD)
+ goto out;
+ ilseq:
+ return ((size_t)(-1));
+}
+
+size_t
+utf_wctomb(char *dst, unsigned int wc)
+{
+ unsigned char *d;
+
+ if (wc < 0x80) {
+ *dst = wc;
+ return (1);
+ }
+
+ d = (unsigned char *)dst;
+ if (wc < 0x0800)
+ *d++ = (wc >> 6) | 0xC0;
+ else {
+ *d++ = ((wc = wc > 0xFFFD ? 0xFFFD : wc) >> 12) | 0xE0;
+ *d++ = ((wc >> 6) & 0x3F) | 0x80;
+ }
+ *d++ = (wc & 0x3F) | 0x80;
+ return ((char *)d - dst);
+}
+
+/*
+ * Wrapper around access(2) because it says root can execute everything
+ * on some operating systems. Does not set errno, no user needs it. Use
+ * this iff mode can have the X_OK bit set, access otherwise.
+ */
+int
+ksh_access(const char *fn, int mode)
+{
+ int rv;
+ struct stat sb;
+
+ if ((rv = access(fn, mode)) == 0 && kshuid == 0 && (mode & X_OK) &&
+ (rv = stat(fn, &sb)) == 0 && !S_ISDIR(sb.st_mode) &&
+ (sb.st_mode & (S_IXUSR|S_IXGRP|S_IXOTH)) == 0)
+ rv = -1;
+
+ return (rv);
+}
+
+/* From: X11/xc/programs/xterm/wcwidth.c,v 1.8 2014/06/24 19:53:53 tg Exp $ */
+
+struct mb_ucsrange {
+ unsigned short beg;
+ unsigned short end;
+};
+
+static int mb_ucsbsearch(const struct mb_ucsrange arr[], size_t elems,
+ unsigned int val) MKSH_A_PURE;
+
+/*
+ * Generated by MirOS: contrib/code/Snippets/eawparse,v 1.2 2013/11/30 13:45:17 tg Exp $
+ * from the Unicode Character Database, Version 7.0.0
+ */
+
+static const struct mb_ucsrange mb_ucs_combining[] = {
+ { 0x0300, 0x036F },
+ { 0x0483, 0x0489 },
+ { 0x0591, 0x05BD },
+ { 0x05BF, 0x05BF },
+ { 0x05C1, 0x05C2 },
+ { 0x05C4, 0x05C5 },
+ { 0x05C7, 0x05C7 },
+ { 0x0600, 0x0605 },
+ { 0x0610, 0x061A },
+ { 0x061C, 0x061C },
+ { 0x064B, 0x065F },
+ { 0x0670, 0x0670 },
+ { 0x06D6, 0x06DD },
+ { 0x06DF, 0x06E4 },
+ { 0x06E7, 0x06E8 },
+ { 0x06EA, 0x06ED },
+ { 0x070F, 0x070F },
+ { 0x0711, 0x0711 },
+ { 0x0730, 0x074A },
+ { 0x07A6, 0x07B0 },
+ { 0x07EB, 0x07F3 },
+ { 0x0816, 0x0819 },
+ { 0x081B, 0x0823 },
+ { 0x0825, 0x0827 },
+ { 0x0829, 0x082D },
+ { 0x0859, 0x085B },
+ { 0x08E4, 0x0902 },
+ { 0x093A, 0x093A },
+ { 0x093C, 0x093C },
+ { 0x0941, 0x0948 },
+ { 0x094D, 0x094D },
+ { 0x0951, 0x0957 },
+ { 0x0962, 0x0963 },
+ { 0x0981, 0x0981 },
+ { 0x09BC, 0x09BC },
+ { 0x09C1, 0x09C4 },
+ { 0x09CD, 0x09CD },
+ { 0x09E2, 0x09E3 },
+ { 0x0A01, 0x0A02 },
+ { 0x0A3C, 0x0A3C },
+ { 0x0A41, 0x0A42 },
+ { 0x0A47, 0x0A48 },
+ { 0x0A4B, 0x0A4D },
+ { 0x0A51, 0x0A51 },
+ { 0x0A70, 0x0A71 },
+ { 0x0A75, 0x0A75 },
+ { 0x0A81, 0x0A82 },
+ { 0x0ABC, 0x0ABC },
+ { 0x0AC1, 0x0AC5 },
+ { 0x0AC7, 0x0AC8 },
+ { 0x0ACD, 0x0ACD },
+ { 0x0AE2, 0x0AE3 },
+ { 0x0B01, 0x0B01 },
+ { 0x0B3C, 0x0B3C },
+ { 0x0B3F, 0x0B3F },
+ { 0x0B41, 0x0B44 },
+ { 0x0B4D, 0x0B4D },
+ { 0x0B56, 0x0B56 },
+ { 0x0B62, 0x0B63 },
+ { 0x0B82, 0x0B82 },
+ { 0x0BC0, 0x0BC0 },
+ { 0x0BCD, 0x0BCD },
+ { 0x0C00, 0x0C00 },
+ { 0x0C3E, 0x0C40 },
+ { 0x0C46, 0x0C48 },
+ { 0x0C4A, 0x0C4D },
+ { 0x0C55, 0x0C56 },
+ { 0x0C62, 0x0C63 },
+ { 0x0C81, 0x0C81 },
+ { 0x0CBC, 0x0CBC },
+ { 0x0CBF, 0x0CBF },
+ { 0x0CC6, 0x0CC6 },
+ { 0x0CCC, 0x0CCD },
+ { 0x0CE2, 0x0CE3 },
+ { 0x0D01, 0x0D01 },
+ { 0x0D41, 0x0D44 },
+ { 0x0D4D, 0x0D4D },
+ { 0x0D62, 0x0D63 },
+ { 0x0DCA, 0x0DCA },
+ { 0x0DD2, 0x0DD4 },
+ { 0x0DD6, 0x0DD6 },
+ { 0x0E31, 0x0E31 },
+ { 0x0E34, 0x0E3A },
+ { 0x0E47, 0x0E4E },
+ { 0x0EB1, 0x0EB1 },
+ { 0x0EB4, 0x0EB9 },
+ { 0x0EBB, 0x0EBC },
+ { 0x0EC8, 0x0ECD },
+ { 0x0F18, 0x0F19 },
+ { 0x0F35, 0x0F35 },
+ { 0x0F37, 0x0F37 },
+ { 0x0F39, 0x0F39 },
+ { 0x0F71, 0x0F7E },
+ { 0x0F80, 0x0F84 },
+ { 0x0F86, 0x0F87 },
+ { 0x0F8D, 0x0F97 },
+ { 0x0F99, 0x0FBC },
+ { 0x0FC6, 0x0FC6 },
+ { 0x102D, 0x1030 },
+ { 0x1032, 0x1037 },
+ { 0x1039, 0x103A },
+ { 0x103D, 0x103E },
+ { 0x1058, 0x1059 },
+ { 0x105E, 0x1060 },
+ { 0x1071, 0x1074 },
+ { 0x1082, 0x1082 },
+ { 0x1085, 0x1086 },
+ { 0x108D, 0x108D },
+ { 0x109D, 0x109D },
+ { 0x1160, 0x11FF },
+ { 0x135D, 0x135F },
+ { 0x1712, 0x1714 },
+ { 0x1732, 0x1734 },
+ { 0x1752, 0x1753 },
+ { 0x1772, 0x1773 },
+ { 0x17B4, 0x17B5 },
+ { 0x17B7, 0x17BD },
+ { 0x17C6, 0x17C6 },
+ { 0x17C9, 0x17D3 },
+ { 0x17DD, 0x17DD },
+ { 0x180B, 0x180E },
+ { 0x18A9, 0x18A9 },
+ { 0x1920, 0x1922 },
+ { 0x1927, 0x1928 },
+ { 0x1932, 0x1932 },
+ { 0x1939, 0x193B },
+ { 0x1A17, 0x1A18 },
+ { 0x1A1B, 0x1A1B },
+ { 0x1A56, 0x1A56 },
+ { 0x1A58, 0x1A5E },
+ { 0x1A60, 0x1A60 },
+ { 0x1A62, 0x1A62 },
+ { 0x1A65, 0x1A6C },
+ { 0x1A73, 0x1A7C },
+ { 0x1A7F, 0x1A7F },
+ { 0x1AB0, 0x1ABE },
+ { 0x1B00, 0x1B03 },
+ { 0x1B34, 0x1B34 },
+ { 0x1B36, 0x1B3A },
+ { 0x1B3C, 0x1B3C },
+ { 0x1B42, 0x1B42 },
+ { 0x1B6B, 0x1B73 },
+ { 0x1B80, 0x1B81 },
+ { 0x1BA2, 0x1BA5 },
+ { 0x1BA8, 0x1BA9 },
+ { 0x1BAB, 0x1BAD },
+ { 0x1BE6, 0x1BE6 },
+ { 0x1BE8, 0x1BE9 },
+ { 0x1BED, 0x1BED },
+ { 0x1BEF, 0x1BF1 },
+ { 0x1C2C, 0x1C33 },
+ { 0x1C36, 0x1C37 },
+ { 0x1CD0, 0x1CD2 },
+ { 0x1CD4, 0x1CE0 },
+ { 0x1CE2, 0x1CE8 },
+ { 0x1CED, 0x1CED },
+ { 0x1CF4, 0x1CF4 },
+ { 0x1CF8, 0x1CF9 },
+ { 0x1DC0, 0x1DF5 },
+ { 0x1DFC, 0x1DFF },
+ { 0x200B, 0x200F },
+ { 0x202A, 0x202E },
+ { 0x2060, 0x2064 },
+ { 0x2066, 0x206F },
+ { 0x20D0, 0x20F0 },
+ { 0x2CEF, 0x2CF1 },
+ { 0x2D7F, 0x2D7F },
+ { 0x2DE0, 0x2DFF },
+ { 0x302A, 0x302D },
+ { 0x3099, 0x309A },
+ { 0xA66F, 0xA672 },
+ { 0xA674, 0xA67D },
+ { 0xA69F, 0xA69F },
+ { 0xA6F0, 0xA6F1 },
+ { 0xA802, 0xA802 },
+ { 0xA806, 0xA806 },
+ { 0xA80B, 0xA80B },
+ { 0xA825, 0xA826 },
+ { 0xA8C4, 0xA8C4 },
+ { 0xA8E0, 0xA8F1 },
+ { 0xA926, 0xA92D },
+ { 0xA947, 0xA951 },
+ { 0xA980, 0xA982 },
+ { 0xA9B3, 0xA9B3 },
+ { 0xA9B6, 0xA9B9 },
+ { 0xA9BC, 0xA9BC },
+ { 0xA9E5, 0xA9E5 },
+ { 0xAA29, 0xAA2E },
+ { 0xAA31, 0xAA32 },
+ { 0xAA35, 0xAA36 },
+ { 0xAA43, 0xAA43 },
+ { 0xAA4C, 0xAA4C },
+ { 0xAA7C, 0xAA7C },
+ { 0xAAB0, 0xAAB0 },
+ { 0xAAB2, 0xAAB4 },
+ { 0xAAB7, 0xAAB8 },
+ { 0xAABE, 0xAABF },
+ { 0xAAC1, 0xAAC1 },
+ { 0xAAEC, 0xAAED },
+ { 0xAAF6, 0xAAF6 },
+ { 0xABE5, 0xABE5 },
+ { 0xABE8, 0xABE8 },
+ { 0xABED, 0xABED },
+ { 0xFB1E, 0xFB1E },
+ { 0xFE00, 0xFE0F },
+ { 0xFE20, 0xFE2D },
+ { 0xFEFF, 0xFEFF },
+ { 0xFFF9, 0xFFFB }
+};
+
+static const struct mb_ucsrange mb_ucs_fullwidth[] = {
+ { 0x1100, 0x115F },
+ { 0x2329, 0x232A },
+ { 0x2E80, 0x303E },
+ { 0x3040, 0xA4CF },
+ { 0xA960, 0xA97F },
+ { 0xAC00, 0xD7A3 },
+ { 0xF900, 0xFAFF },
+ { 0xFE10, 0xFE19 },
+ { 0xFE30, 0xFE6F },
+ { 0xFF00, 0xFF60 },
+ { 0xFFE0, 0xFFE6 }
+};
+
+/* simple binary search in ranges, with bounds optimisation */
+static int
+mb_ucsbsearch(const struct mb_ucsrange arr[], size_t elems, unsigned int val)
+{
+ size_t min = 0, mid, max = elems;
+
+ if (val < arr[min].beg || val > arr[max - 1].end)
+ return (0);
+
+ while (min < max) {
+ mid = (min + max) / 2;
+
+ if (val < arr[mid].beg)
+ max = mid;
+ else if (val > arr[mid].end)
+ min = mid + 1;
+ else
+ return (1);
+ }
+ return (0);
+}
+
+/* Unix column width of a wide character (Unicode code point, really) */
+int
+utf_wcwidth(unsigned int wc)
+{
+ /* except NUL, C0/C1 control characters and DEL yield -1 */
+ if (wc < 0x20 || (wc >= 0x7F && wc < 0xA0))
+ return (wc ? -1 : 0);
+
+ /* combining characters use 0 screen columns */
+ if (mb_ucsbsearch(mb_ucs_combining, NELEM(mb_ucs_combining), wc))
+ return (0);
+
+ /* all others use 1 or 2 screen columns */
+ if (mb_ucsbsearch(mb_ucs_fullwidth, NELEM(mb_ucs_fullwidth), wc))
+ return (2);
+ return (1);
+}
Deleted: vendor/MirOS/mksh/R50/funcs.c
===================================================================
--- vendor/MirOS/mksh/dist/funcs.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/funcs.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,3844 +0,0 @@
-/* $OpenBSD: c_ksh.c,v 1.33 2009/02/07 14:03:24 kili Exp $ */
-/* $OpenBSD: c_sh.c,v 1.43 2013/04/19 17:39:45 deraadt Exp $ */
-/* $OpenBSD: c_test.c,v 1.18 2009/03/01 20:11:06 otto Exp $ */
-/* $OpenBSD: c_ulimit.c,v 1.17 2008/03/21 12:51:19 millert Exp $ */
-
-/*-
- * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
- * 2010, 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-
-#if HAVE_SELECT
-#if HAVE_SYS_BSDTYPES_H
-#include <sys/bsdtypes.h>
-#endif
-#if HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
-#if HAVE_BSTRING_H
-#include <bstring.h>
-#endif
-#endif
-
-__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.244 2013/06/03 22:28:32 tg Exp $");
-
-#if HAVE_KILLPG
-/*
- * use killpg if < -1 since -1 does special things
- * for some non-killpg-endowed kills
- */
-#define mksh_kill(p,s) ((p) < -1 ? killpg(-(p), (s)) : kill((p), (s)))
-#else
-/* cross fingers and hope kill is killpg-endowed */
-#define mksh_kill kill
-#endif
-
-/* XXX conditions correct? */
-#if !defined(RLIM_INFINITY) && !defined(MKSH_NO_LIMITS)
-#define MKSH_NO_LIMITS 1
-#endif
-
-#ifdef MKSH_NO_LIMITS
-#define c_ulimit c_true
-#endif
-
-/* getn() that prints error */
-static int
-bi_getn(const char *as, int *ai)
-{
- int rv;
-
- if (!(rv = getn(as, ai)))
- bi_errorf("%s: %s", as, "bad number");
- return (rv);
-}
-
-static int
-c_true(const char **wp MKSH_A_UNUSED)
-{
- return (0);
-}
-
-static int
-c_false(const char **wp MKSH_A_UNUSED)
-{
- return (1);
-}
-
-/*
- * A leading = means assignments before command are kept.
- * A leading * means a POSIX special builtin.
- */
-const struct builtin mkshbuiltins[] = {
- {"*=.", c_dot},
- {"*=:", c_true},
- {"[", c_test},
- /* no =: AT&T manual wrong */
- {Talias, c_alias},
- {"*=break", c_brkcont},
- {Tgbuiltin, c_builtin},
- {"cat", c_cat},
- {"cd", c_cd},
- /* dash compatibility hack */
- {"chdir", c_cd},
- {"command", c_command},
- {"*=continue", c_brkcont},
- {"echo", c_print},
- {"*=eval", c_eval},
- {"*=exec", c_exec},
- {"*=exit", c_exitreturn},
- {Tsgexport, c_typeset},
- {"false", c_false},
- {"fc", c_fc},
- {"getopts", c_getopts},
- {"=global", c_typeset},
- {"jobs", c_jobs},
- {"kill", c_kill},
- {"let", c_let},
- {"let]", c_let},
- {"print", c_print},
- {"pwd", c_pwd},
- {"read", c_read},
- {Tsgreadonly, c_typeset},
- {"realpath", c_realpath},
- {"rename", c_rename},
- {"*=return", c_exitreturn},
- {Tsgset, c_set},
- {"*=shift", c_shift},
- {"test", c_test},
- {"*=times", c_times},
- {"*=trap", c_trap},
- {"true", c_true},
- {T_typeset, c_typeset},
- {"ulimit", c_ulimit},
- {"umask", c_umask},
- {Tunalias, c_unalias},
- {Tsgunset, c_unset},
- {"=wait", c_wait},
- {"whence", c_whence},
-#ifndef MKSH_UNEMPLOYED
- {"bg", c_fgbg},
- {"fg", c_fgbg},
-#endif
-#ifndef MKSH_NO_CMDLINE_EDITING
- {"bind", c_bind},
-#endif
-#if HAVE_MKNOD
- {"mknod", c_mknod},
-#endif
-#ifdef MKSH_PRINTF_BUILTIN
- {"printf", c_printf},
-#endif
-#if HAVE_SELECT
- {"sleep", c_sleep},
-#endif
-#ifdef __MirBSD__
- /* alias to "true" for historical reasons */
- {"domainname", c_true},
-#endif
- {NULL, (int (*)(const char **))NULL}
-};
-
-struct kill_info {
- int num_width;
- int name_width;
-};
-
-static const struct t_op {
- char op_text[4];
- Test_op op_num;
-} u_ops[] = {
- {"-a", TO_FILAXST },
- {"-b", TO_FILBDEV },
- {"-c", TO_FILCDEV },
- {"-d", TO_FILID },
- {"-e", TO_FILEXST },
- {"-f", TO_FILREG },
- {"-G", TO_FILGID },
- {"-g", TO_FILSETG },
- {"-h", TO_FILSYM },
- {"-H", TO_FILCDF },
- {"-k", TO_FILSTCK },
- {"-L", TO_FILSYM },
- {"-n", TO_STNZE },
- {"-O", TO_FILUID },
- {"-o", TO_OPTION },
- {"-p", TO_FILFIFO },
- {"-r", TO_FILRD },
- {"-s", TO_FILGZ },
- {"-S", TO_FILSOCK },
- {"-t", TO_FILTT },
- {"-u", TO_FILSETU },
- {"-w", TO_FILWR },
- {"-x", TO_FILEX },
- {"-z", TO_STZER },
- {"", TO_NONOP }
-};
-static const struct t_op b_ops[] = {
- {"=", TO_STEQL },
- {"==", TO_STEQL },
- {"!=", TO_STNEQ },
- {"<", TO_STLT },
- {">", TO_STGT },
- {"-eq", TO_INTEQ },
- {"-ne", TO_INTNE },
- {"-gt", TO_INTGT },
- {"-ge", TO_INTGE },
- {"-lt", TO_INTLT },
- {"-le", TO_INTLE },
- {"-ef", TO_FILEQ },
- {"-nt", TO_FILNT },
- {"-ot", TO_FILOT },
- {"", TO_NONOP }
-};
-
-static int test_oexpr(Test_env *, bool);
-static int test_aexpr(Test_env *, bool);
-static int test_nexpr(Test_env *, bool);
-static int test_primary(Test_env *, bool);
-static Test_op ptest_isa(Test_env *, Test_meta);
-static const char *ptest_getopnd(Test_env *, Test_op, bool);
-static void ptest_error(Test_env *, int, const char *);
-static char *kill_fmt_entry(char *, size_t, unsigned int, const void *);
-static void p_time(struct shf *, bool, long, int, int,
- const char *, const char *);
-
-int
-c_pwd(const char **wp)
-{
- int optc;
- bool physical = tobool(Flag(FPHYSICAL));
- char *p, *allocd = NULL;
-
- while ((optc = ksh_getopt(wp, &builtin_opt, "LP")) != -1)
- switch (optc) {
- case 'L':
- physical = false;
- break;
- case 'P':
- physical = true;
- break;
- case '?':
- return (1);
- }
- wp += builtin_opt.optind;
-
- if (wp[0]) {
- bi_errorf("too many arguments");
- return (1);
- }
- p = current_wd[0] ? (physical ? allocd = do_realpath(current_wd) :
- current_wd) : NULL;
- /* LINTED use of access */
- if (p && access(p, R_OK) < 0)
- p = NULL;
- if (!p && !(p = allocd = ksh_get_wd())) {
- bi_errorf("%s: %s", "can't determine current directory",
- cstrerror(errno));
- return (1);
- }
- shprintf("%s\n", p);
- afree(allocd, ATEMP);
- return (0);
-}
-
-static const char *s_ptr;
-static int s_get(void);
-static void s_put(int);
-
-int
-c_print(const char **wp)
-{
-#define PO_NL BIT(0) /* print newline */
-#define PO_EXPAND BIT(1) /* expand backslash sequences */
-#define PO_PMINUSMINUS BIT(2) /* print a -- argument */
-#define PO_HIST BIT(3) /* print to history instead of stdout */
-#define PO_COPROC BIT(4) /* printing to coprocess: block SIGPIPE */
- int fd = 1, c;
- int flags = PO_EXPAND | PO_NL;
- const char *s, *emsg;
- XString xs;
- char *xp;
-
- if (wp[0][0] == 'e') {
- /* echo builtin */
- wp++;
-#ifdef MKSH_MIDNIGHTBSD01ASH_COMPAT
- if (Flag(FSH)) {
- /*
- * MidnightBSD /bin/sh needs a BSD echo, that is,
- * one that supports -e but does not enable it by
- * default
- */
- flags = PO_NL;
- }
-#endif
- if (Flag(FPOSIX) ||
-#ifndef MKSH_MIDNIGHTBSD01ASH_COMPAT
- Flag(FSH) ||
-#endif
- Flag(FAS_BUILTIN)) {
- /* Debian Policy 10.4 compliant "echo" builtin */
- if (*wp && !strcmp(*wp, "-n")) {
- /* we recognise "-n" only as the first arg */
- flags = 0;
- wp++;
- } else
- /* otherwise, we print everything as-is */
- flags = PO_NL;
- } else {
- int nflags = flags;
-
- /**
- * a compromise between sysV and BSD echo commands:
- * escape sequences are enabled by default, and -n,
- * -e and -E are recognised if they appear in argu-
- * ments with no illegal options (ie, echo -nq will
- * print -nq).
- * Different from sysV echo since options are reco-
- * gnised, different from BSD echo since escape se-
- * quences are enabled by default.
- */
-
- while ((s = *wp) && *s == '-' && s[1]) {
- while (*++s)
- if (*s == 'n')
- nflags &= ~PO_NL;
- else if (*s == 'e')
- nflags |= PO_EXPAND;
- else if (*s == 'E')
- nflags &= ~PO_EXPAND;
- else
- /*
- * bad option: don't use
- * nflags, print argument
- */
- break;
-
- if (*s)
- break;
- wp++;
- flags = nflags;
- }
- }
- } else {
- int optc;
- const char *opts = "Rnprsu,";
-
- while ((optc = ksh_getopt(wp, &builtin_opt, opts)) != -1)
- switch (optc) {
- case 'R':
- /* fake BSD echo command */
- flags |= PO_PMINUSMINUS;
- flags &= ~PO_EXPAND;
- opts = "ne";
- break;
- case 'e':
- flags |= PO_EXPAND;
- break;
- case 'n':
- flags &= ~PO_NL;
- break;
- case 'p':
- if ((fd = coproc_getfd(W_OK, &emsg)) < 0) {
- bi_errorf("%s: %s", "-p", emsg);
- return (1);
- }
- break;
- case 'r':
- flags &= ~PO_EXPAND;
- break;
- case 's':
- flags |= PO_HIST;
- break;
- case 'u':
- if (!*(s = builtin_opt.optarg))
- fd = 0;
- else if ((fd = check_fd(s, W_OK, &emsg)) < 0) {
- bi_errorf("%s: %s: %s", "-u", s, emsg);
- return (1);
- }
- break;
- case '?':
- return (1);
- }
-
- if (!(builtin_opt.info & GI_MINUSMINUS)) {
- /* treat a lone - like -- */
- if (wp[builtin_opt.optind] &&
- ksh_isdash(wp[builtin_opt.optind]))
- builtin_opt.optind++;
- } else if (flags & PO_PMINUSMINUS)
- builtin_opt.optind--;
- wp += builtin_opt.optind;
- }
-
- Xinit(xs, xp, 128, ATEMP);
-
- while (*wp != NULL) {
- s = *wp;
- while ((c = *s++) != '\0') {
- Xcheck(xs, xp);
- if ((flags & PO_EXPAND) && c == '\\') {
- s_ptr = s;
- c = unbksl(false, s_get, s_put);
- s = s_ptr;
- if (c == -1) {
- /* rejected by generic function */
- switch ((c = *s++)) {
- case 'c':
- flags &= ~PO_NL;
- /* AT&T brain damage */
- continue;
- case '\0':
- s--;
- c = '\\';
- break;
- default:
- Xput(xs, xp, '\\');
- }
- } else if ((unsigned int)c > 0xFF) {
- /* generic function returned Unicode */
- char ts[4];
-
- ts[utf_wctomb(ts, c - 0x100)] = 0;
- for (c = 0; ts[c]; ++c)
- Xput(xs, xp, ts[c]);
- continue;
- }
- }
- Xput(xs, xp, c);
- }
- if (*++wp != NULL)
- Xput(xs, xp, ' ');
- }
- if (flags & PO_NL)
- Xput(xs, xp, '\n');
-
- if (flags & PO_HIST) {
- Xput(xs, xp, '\0');
- histsave(&source->line, Xstring(xs, xp), true, false);
- Xfree(xs, xp);
- } else {
- int len = Xlength(xs, xp);
- int opipe = 0;
-
- /*
- * Ensure we aren't killed by a SIGPIPE while writing to
- * a coprocess. AT&T ksh doesn't seem to do this (seems
- * to just check that the co-process is alive which is
- * not enough).
- */
- if (coproc.write >= 0 && coproc.write == fd) {
- flags |= PO_COPROC;
- opipe = block_pipe();
- }
- for (s = Xstring(xs, xp); len > 0; ) {
- if ((c = write(fd, s, len)) < 0) {
- if (flags & PO_COPROC)
- restore_pipe(opipe);
- if (errno == EINTR) {
- /* allow user to ^C out */
- intrcheck();
- if (flags & PO_COPROC)
- opipe = block_pipe();
- continue;
- }
- return (1);
- }
- s += c;
- len -= c;
- }
- if (flags & PO_COPROC)
- restore_pipe(opipe);
- }
-
- return (0);
-}
-
-static int
-s_get(void)
-{
- return (*s_ptr++);
-}
-
-static void
-s_put(int c MKSH_A_UNUSED)
-{
- --s_ptr;
-}
-
-int
-c_whence(const char **wp)
-{
- struct tbl *tp;
- const char *id;
- bool pflag = false, vflag = false, Vflag = false;
- int rv = 0, optc, fcflags;
- bool iam_whence = wp[0][0] == 'w';
- const char *opts = iam_whence ? "pv" : "pvV";
-
- while ((optc = ksh_getopt(wp, &builtin_opt, opts)) != -1)
- switch (optc) {
- case 'p':
- pflag = true;
- break;
- case 'v':
- vflag = true;
- break;
- case 'V':
- Vflag = true;
- break;
- case '?':
- return (1);
- }
- wp += builtin_opt.optind;
-
- fcflags = FC_BI | FC_PATH | FC_FUNC;
- if (!iam_whence) {
- /* Note that -p on its own is deal with in comexec() */
- if (pflag)
- fcflags |= FC_DEFPATH;
- /*
- * Convert command options to whence options - note that
- * command -pV uses a different path search than whence -v
- * or whence -pv. This should be considered a feature.
- */
- vflag = Vflag;
- }
- if (pflag)
- fcflags &= ~(FC_BI | FC_FUNC);
-
- while ((vflag || rv == 0) && (id = *wp++) != NULL) {
- uint32_t h = 0;
-
- tp = NULL;
- if ((iam_whence || vflag) && !pflag)
- tp = ktsearch(&keywords, id, h = hash(id));
- if (!tp && !pflag) {
- tp = ktsearch(&aliases, id, h ? h : hash(id));
- if (tp && !(tp->flag & ISSET))
- tp = NULL;
- }
- if (!tp)
- tp = findcom(id, fcflags);
- if (vflag || (tp->type != CALIAS && tp->type != CEXEC &&
- tp->type != CTALIAS))
- shf_puts(id, shl_stdout);
- if (vflag)
- switch (tp->type) {
- case CKEYWD:
- case CALIAS:
- case CFUNC:
- case CSHELL:
- shf_puts(" is a", shl_stdout);
- break;
- }
-
- switch (tp->type) {
- case CKEYWD:
- if (vflag)
- shf_puts(" reserved word", shl_stdout);
- break;
- case CALIAS:
- if (vflag)
- shprintf("n %s%s for ",
- (tp->flag & EXPORT) ? "exported " : null,
- Talias);
- if (!iam_whence && !vflag)
- shprintf("%s %s=", Talias, id);
- print_value_quoted(shl_stdout, tp->val.s);
- break;
- case CFUNC:
- if (vflag) {
- if (tp->flag & EXPORT)
- shf_puts("n exported", shl_stdout);
- if (tp->flag & TRACE)
- shf_puts(" traced", shl_stdout);
- if (!(tp->flag & ISSET)) {
- shf_puts(" undefined", shl_stdout);
- if (tp->u.fpath)
- shprintf(" (autoload from %s)",
- tp->u.fpath);
- }
- shf_puts(T_function, shl_stdout);
- }
- break;
- case CSHELL:
- if (vflag)
- shprintf("%s %s %s",
- (tp->flag & SPEC_BI) ? " special" : null,
- "shell", Tbuiltin);
- break;
- case CTALIAS:
- case CEXEC:
- if (tp->flag & ISSET) {
- if (vflag) {
- shf_puts(" is ", shl_stdout);
- if (tp->type == CTALIAS)
- shprintf("a tracked %s%s for ",
- (tp->flag & EXPORT) ?
- "exported " : null,
- Talias);
- }
- shf_puts(tp->val.s, shl_stdout);
- } else {
- if (vflag)
- shprintf(" %s\n", "not found");
- rv = 1;
- }
- break;
- default:
- shprintf("%s is *GOK*", id);
- break;
- }
- if (vflag || !rv)
- shf_putc('\n', shl_stdout);
- }
- return (rv);
-}
-
-/* Deal with command -vV - command -p dealt with in comexec() */
-int
-c_command(const char **wp)
-{
- /*
- * Let c_whence do the work. Note that c_command() must be
- * a distinct function from c_whence() (tested in comexec()).
- */
- return (c_whence(wp));
-}
-
-/* typeset, global, export, and readonly */
-static void c_typeset_vardump(struct tbl *, uint32_t, int, bool, bool);
-static void c_typeset_vardump_recursive(struct block *, uint32_t, int, bool,
- bool);
-int
-c_typeset(const char **wp)
-{
- struct tbl *vp, **p;
- uint32_t fset = 0, fclr = 0, flag;
- int thing = 0, field = 0, base = 0, i;
- struct block *l;
- const char *opts;
- const char *fieldstr = NULL, *basestr = NULL;
- bool localv = false, func = false, pflag = false, istset = true;
-
- switch (**wp) {
-
- /* export */
- case 'e':
- fset |= EXPORT;
- istset = false;
- break;
-
- /* readonly */
- case 'r':
- fset |= RDONLY;
- istset = false;
- break;
-
- /* set */
- case 's':
- /* called with 'typeset -' */
- break;
-
- /* typeset */
- case 't':
- localv = true;
- break;
- }
-
- /* see comment below regarding possible opions */
- opts = istset ? "L#R#UZ#afi#lnprtux" : "p";
-
- builtin_opt.flags |= GF_PLUSOPT;
- /*
- * AT&T ksh seems to have 0-9 as options which are multiplied
- * to get a number that is used with -L, -R, -Z or -i (eg, -1R2
- * sets right justify in a field of 12). This allows options
- * to be grouped in an order (eg, -Lu12), but disallows -i8 -L3 and
- * does not allow the number to be specified as a separate argument
- * Here, the number must follow the RLZi option, but is optional
- * (see the # kludge in ksh_getopt()).
- */
- while ((i = ksh_getopt(wp, &builtin_opt, opts)) != -1) {
- flag = 0;
- switch (i) {
- case 'L':
- flag = LJUST;
- fieldstr = builtin_opt.optarg;
- break;
- case 'R':
- flag = RJUST;
- fieldstr = builtin_opt.optarg;
- break;
- case 'U':
- /*
- * AT&T ksh uses u, but this conflicts with
- * upper/lower case. If this option is changed,
- * need to change the -U below as well
- */
- flag = INT_U;
- break;
- case 'Z':
- flag = ZEROFIL;
- fieldstr = builtin_opt.optarg;
- break;
- case 'a':
- /*
- * this is supposed to set (-a) or unset (+a) the
- * indexed array attribute; it does nothing on an
- * existing regular string or indexed array though
- */
- break;
- case 'f':
- func = true;
- break;
- case 'i':
- flag = INTEGER;
- basestr = builtin_opt.optarg;
- break;
- case 'l':
- flag = LCASEV;
- break;
- case 'n':
- set_refflag = (builtin_opt.info & GI_PLUS) ?
- SRF_DISABLE : SRF_ENABLE;
- break;
- /* export, readonly: POSIX -p flag */
- case 'p':
- /* typeset: show values as well */
- pflag = true;
- if (istset)
- continue;
- break;
- case 'r':
- flag = RDONLY;
- break;
- case 't':
- flag = TRACE;
- break;
- case 'u':
- /* upper case / autoload */
- flag = UCASEV_AL;
- break;
- case 'x':
- flag = EXPORT;
- break;
- case '?':
- errout:
- set_refflag = SRF_NOP;
- return (1);
- }
- if (builtin_opt.info & GI_PLUS) {
- fclr |= flag;
- fset &= ~flag;
- thing = '+';
- } else {
- fset |= flag;
- fclr &= ~flag;
- thing = '-';
- }
- }
-
- if (fieldstr && !bi_getn(fieldstr, &field))
- goto errout;
- if (basestr && (!bi_getn(basestr, &base) || base < 1 || base > 36)) {
- bi_errorf("%s: %s", "bad integer base", basestr);
- goto errout;
- }
-
- if (!(builtin_opt.info & GI_MINUSMINUS) && wp[builtin_opt.optind] &&
- (wp[builtin_opt.optind][0] == '-' ||
- wp[builtin_opt.optind][0] == '+') &&
- wp[builtin_opt.optind][1] == '\0') {
- thing = wp[builtin_opt.optind][0];
- builtin_opt.optind++;
- }
-
- if (func && (((fset|fclr) & ~(TRACE|UCASEV_AL|EXPORT)) ||
- set_refflag != SRF_NOP)) {
- bi_errorf("only -t, -u and -x options may be used with -f");
- goto errout;
- }
- if (wp[builtin_opt.optind]) {
- /*
- * Take care of exclusions.
- * At this point, flags in fset are cleared in fclr and vice
- * versa. This property should be preserved.
- */
- if (fset & LCASEV)
- /* LCASEV has priority over UCASEV_AL */
- fset &= ~UCASEV_AL;
- if (fset & LJUST)
- /* LJUST has priority over RJUST */
- fset &= ~RJUST;
- if ((fset & (ZEROFIL|LJUST)) == ZEROFIL) {
- /* -Z implies -ZR */
- fset |= RJUST;
- fclr &= ~RJUST;
- }
- /*
- * Setting these attributes clears the others, unless they
- * are also set in this command
- */
- if ((fset & (LJUST | RJUST | ZEROFIL | UCASEV_AL | LCASEV |
- INTEGER | INT_U | INT_L)) || set_refflag != SRF_NOP)
- fclr |= ~fset & (LJUST | RJUST | ZEROFIL | UCASEV_AL |
- LCASEV | INTEGER | INT_U | INT_L);
- }
-
- /* set variables and attributes */
- if (wp[builtin_opt.optind] &&
- /* not "typeset -p varname" */
- !(!func && pflag && !(fset | fclr))) {
- int rv = 0;
- struct tbl *f;
-
- if (localv && !func)
- fset |= LOCAL;
- for (i = builtin_opt.optind; wp[i]; i++) {
- if (func) {
- f = findfunc(wp[i], hash(wp[i]),
- tobool(fset & UCASEV_AL));
- if (!f) {
- /* AT&T ksh does ++rv: bogus */
- rv = 1;
- continue;
- }
- if (fset | fclr) {
- f->flag |= fset;
- f->flag &= ~fclr;
- } else {
- fpFUNCTf(shl_stdout, 0,
- tobool(f->flag & FKSH),
- wp[i], f->val.t);
- shf_putc('\n', shl_stdout);
- }
- } else if (!typeset(wp[i], fset, fclr, field, base)) {
- bi_errorf("%s: %s", wp[i], "is not an identifier");
- goto errout;
- }
- }
- set_refflag = SRF_NOP;
- return (rv);
- }
-
- set_refflag = SRF_NOP;
- /* list variables and attributes */
-
- /* no difference at this point.. */
- flag = fset | fclr;
- if (func) {
- for (l = e->loc; l; l = l->next) {
- for (p = ktsort(&l->funs); (vp = *p++); ) {
- if (flag && (vp->flag & flag) == 0)
- continue;
- if (thing == '-')
- fpFUNCTf(shl_stdout, 0,
- tobool(vp->flag & FKSH),
- vp->name, vp->val.t);
- else
- shf_puts(vp->name, shl_stdout);
- shf_putc('\n', shl_stdout);
- }
- }
- } else if (wp[builtin_opt.optind]) {
- for (i = builtin_opt.optind; wp[i]; i++) {
- varsearch(e->loc, &vp, wp[i], hash(wp[i]));
- c_typeset_vardump(vp, flag, thing, pflag, istset);
- }
- } else
- c_typeset_vardump_recursive(e->loc, flag, thing, pflag, istset);
- return (0);
-}
-
-static void
-c_typeset_vardump_recursive(struct block *l, uint32_t flag, int thing,
- bool pflag, bool istset)
-{
- struct tbl **blockvars, *vp;
-
- if (l->next)
- c_typeset_vardump_recursive(l->next, flag, thing, pflag, istset);
- blockvars = ktsort(&l->vars);
- while ((vp = *blockvars++))
- c_typeset_vardump(vp, flag, thing, pflag, istset);
- /*XXX doesn’t this leak? */
-}
-
-static void
-c_typeset_vardump(struct tbl *vp, uint32_t flag, int thing, bool pflag,
- bool istset)
-{
- struct tbl *tvp;
- int any_set = 0;
- char *s;
-
- if (!vp)
- return;
-
- /*
- * See if the parameter is set (for arrays, if any
- * element is set).
- */
- for (tvp = vp; tvp; tvp = tvp->u.array)
- if (tvp->flag & ISSET) {
- any_set = 1;
- break;
- }
-
- /*
- * Check attributes - note that all array elements
- * have (should have?) the same attributes, so checking
- * the first is sufficient.
- *
- * Report an unset param only if the user has
- * explicitly given it some attribute (like export);
- * otherwise, after "echo $FOO", we would report FOO...
- */
- if (!any_set && !(vp->flag & USERATTRIB))
- return;
- if (flag && (vp->flag & flag) == 0)
- return;
- if (!(vp->flag & ARRAY))
- /* optimise later conditionals */
- any_set = 0;
- do {
- /*
- * Ignore array elements that aren't set unless there
- * are no set elements, in which case the first is
- * reported on
- */
- if (any_set && !(vp->flag & ISSET))
- continue;
- /* no arguments */
- if (!thing && !flag) {
- if (any_set == 1) {
- shprintf("%s %s %s\n", Tset, "-A", vp->name);
- any_set = 2;
- }
- /*
- * AT&T ksh prints things like export, integer,
- * leftadj, zerofill, etc., but POSIX says must
- * be suitable for re-entry...
- */
- shprintf("%s %s", Ttypeset, "");
- if (((vp->flag & (ARRAY | ASSOC)) == ASSOC))
- shprintf("%s ", "-n");
- if ((vp->flag & INTEGER))
- shprintf("%s ", "-i");
- if ((vp->flag & EXPORT))
- shprintf("%s ", "-x");
- if ((vp->flag & RDONLY))
- shprintf("%s ", "-r");
- if ((vp->flag & TRACE))
- shprintf("%s ", "-t");
- if ((vp->flag & LJUST))
- shprintf("-L%d ", vp->u2.field);
- if ((vp->flag & RJUST))
- shprintf("-R%d ", vp->u2.field);
- if ((vp->flag & ZEROFIL))
- shprintf("%s ", "-Z");
- if ((vp->flag & LCASEV))
- shprintf("%s ", "-l");
- if ((vp->flag & UCASEV_AL))
- shprintf("%s ", "-u");
- if ((vp->flag & INT_U))
- shprintf("%s ", "-U");
- } else if (pflag) {
- shprintf("%s %s", istset ? Ttypeset :
- (flag & EXPORT) ? Texport : Treadonly, "");
- }
- if (any_set)
- shprintf("%s[%lu]", vp->name, arrayindex(vp));
- else
- shf_puts(vp->name, shl_stdout);
- if ((!thing && !flag && pflag) ||
- (thing == '-' && (vp->flag & ISSET))) {
- s = str_val(vp);
- shf_putc('=', shl_stdout);
- /* AT&T ksh can't have justified integers... */
- if ((vp->flag & (INTEGER | LJUST | RJUST)) == INTEGER)
- shf_puts(s, shl_stdout);
- else
- print_value_quoted(shl_stdout, s);
- }
- shf_putc('\n', shl_stdout);
-
- /*
- * Only report first 'element' of an array with
- * no set elements.
- */
- if (!any_set)
- return;
- } while ((vp = vp->u.array));
-}
-
-int
-c_alias(const char **wp)
-{
- struct table *t = &aliases;
- int rv = 0, prefix = 0;
- bool rflag = false, tflag, Uflag = false, pflag = false;
- uint32_t xflag = 0;
- int optc;
-
- builtin_opt.flags |= GF_PLUSOPT;
- while ((optc = ksh_getopt(wp, &builtin_opt, "dprtUx")) != -1) {
- prefix = builtin_opt.info & GI_PLUS ? '+' : '-';
- switch (optc) {
- case 'd':
-#ifdef MKSH_NOPWNAM
- t = NULL; /* fix "alias -dt" */
-#else
- t = &homedirs;
-#endif
- break;
- case 'p':
- pflag = true;
- break;
- case 'r':
- rflag = true;
- break;
- case 't':
- t = &taliases;
- break;
- case 'U':
- /*
- * kludge for tracked alias initialization
- * (don't do a path search, just make an entry)
- */
- Uflag = true;
- break;
- case 'x':
- xflag = EXPORT;
- break;
- case '?':
- return (1);
- }
- }
-#ifdef MKSH_NOPWNAM
- if (t == NULL)
- return (0);
-#endif
- wp += builtin_opt.optind;
-
- if (!(builtin_opt.info & GI_MINUSMINUS) && *wp &&
- (wp[0][0] == '-' || wp[0][0] == '+') && wp[0][1] == '\0') {
- prefix = wp[0][0];
- wp++;
- }
-
- tflag = t == &taliases;
-
- /* "hash -r" means reset all the tracked aliases.. */
- if (rflag) {
- static const char *args[] = {
- Tunalias, "-ta", NULL
- };
-
- if (!tflag || *wp) {
- shprintf("%s: -r flag can only be used with -t"
- " and without arguments\n", Talias);
- return (1);
- }
- ksh_getopt_reset(&builtin_opt, GF_ERROR);
- return (c_unalias(args));
- }
-
- if (*wp == NULL) {
- struct tbl *ap, **p;
-
- for (p = ktsort(t); (ap = *p++) != NULL; )
- if ((ap->flag & (ISSET|xflag)) == (ISSET|xflag)) {
- if (pflag)
- shprintf("%s ", Talias);
- shf_puts(ap->name, shl_stdout);
- if (prefix != '+') {
- shf_putc('=', shl_stdout);
- print_value_quoted(shl_stdout, ap->val.s);
- }
- shf_putc('\n', shl_stdout);
- }
- }
-
- for (; *wp != NULL; wp++) {
- const char *alias = *wp, *val, *newval;
- char *xalias = NULL;
- struct tbl *ap;
- uint32_t h;
-
- if ((val = cstrchr(alias, '='))) {
- strndupx(xalias, alias, val++ - alias, ATEMP);
- alias = xalias;
- }
- h = hash(alias);
- if (val == NULL && !tflag && !xflag) {
- ap = ktsearch(t, alias, h);
- if (ap != NULL && (ap->flag&ISSET)) {
- if (pflag)
- shprintf("%s ", Talias);
- shf_puts(ap->name, shl_stdout);
- if (prefix != '+') {
- shf_putc('=', shl_stdout);
- print_value_quoted(shl_stdout, ap->val.s);
- }
- shf_putc('\n', shl_stdout);
- } else {
- shprintf("%s %s %s\n", alias, Talias,
- "not found");
- rv = 1;
- }
- continue;
- }
- ap = ktenter(t, alias, h);
- ap->type = tflag ? CTALIAS : CALIAS;
- /* Are we setting the value or just some flags? */
- if ((val && !tflag) || (!val && tflag && !Uflag)) {
- if (ap->flag&ALLOC) {
- ap->flag &= ~(ALLOC|ISSET);
- afree(ap->val.s, APERM);
- }
- /* ignore values for -t (AT&T ksh does this) */
- newval = tflag ?
- search_path(alias, path, X_OK, NULL) :
- val;
- if (newval) {
- strdupx(ap->val.s, newval, APERM);
- ap->flag |= ALLOC|ISSET;
- } else
- ap->flag &= ~ISSET;
- }
- ap->flag |= DEFINED;
- if (prefix == '+')
- ap->flag &= ~xflag;
- else
- ap->flag |= xflag;
- afree(xalias, ATEMP);
- }
-
- return (rv);
-}
-
-int
-c_unalias(const char **wp)
-{
- struct table *t = &aliases;
- struct tbl *ap;
- int optc, rv = 0;
- bool all = false;
-
- while ((optc = ksh_getopt(wp, &builtin_opt, "adt")) != -1)
- switch (optc) {
- case 'a':
- all = true;
- break;
- case 'd':
-#ifdef MKSH_NOPWNAM
- /* fix "unalias -dt" */
- t = NULL;
-#else
- t = &homedirs;
-#endif
- break;
- case 't':
- t = &taliases;
- break;
- case '?':
- return (1);
- }
-#ifdef MKSH_NOPWNAM
- if (t == NULL)
- return (0);
-#endif
- wp += builtin_opt.optind;
-
- for (; *wp != NULL; wp++) {
- ap = ktsearch(t, *wp, hash(*wp));
- if (ap == NULL) {
- /* POSIX */
- rv = 1;
- continue;
- }
- if (ap->flag&ALLOC) {
- ap->flag &= ~(ALLOC|ISSET);
- afree(ap->val.s, APERM);
- }
- ap->flag &= ~(DEFINED|ISSET|EXPORT);
- }
-
- if (all) {
- struct tstate ts;
-
- for (ktwalk(&ts, t); (ap = ktnext(&ts)); ) {
- if (ap->flag&ALLOC) {
- ap->flag &= ~(ALLOC|ISSET);
- afree(ap->val.s, APERM);
- }
- ap->flag &= ~(DEFINED|ISSET|EXPORT);
- }
- }
-
- return (rv);
-}
-
-int
-c_let(const char **wp)
-{
- int rv = 1;
- mksh_ari_t val;
-
- if (wp[1] == NULL)
- /* AT&T ksh does this */
- bi_errorf("no arguments");
- else
- for (wp++; *wp; wp++)
- if (!evaluate(*wp, &val, KSH_RETURN_ERROR, true)) {
- /* distinguish error from zero result */
- rv = 2;
- break;
- } else
- rv = val == 0;
- return (rv);
-}
-
-int
-c_jobs(const char **wp)
-{
- int optc, flag = 0, nflag = 0, rv = 0;
-
- while ((optc = ksh_getopt(wp, &builtin_opt, "lpnz")) != -1)
- switch (optc) {
- case 'l':
- flag = 1;
- break;
- case 'p':
- flag = 2;
- break;
- case 'n':
- nflag = 1;
- break;
- case 'z':
- /* debugging: print zombies */
- nflag = -1;
- break;
- case '?':
- return (1);
- }
- wp += builtin_opt.optind;
- if (!*wp) {
- if (j_jobs(NULL, flag, nflag))
- rv = 1;
- } else {
- for (; *wp; wp++)
- if (j_jobs(*wp, flag, nflag))
- rv = 1;
- }
- return (rv);
-}
-
-#ifndef MKSH_UNEMPLOYED
-int
-c_fgbg(const char **wp)
-{
- bool bg = strcmp(*wp, "bg") == 0;
- int rv = 0;
-
- if (!Flag(FMONITOR)) {
- bi_errorf("job control not enabled");
- return (1);
- }
- if (ksh_getopt(wp, &builtin_opt, null) == '?')
- return (1);
- wp += builtin_opt.optind;
- if (*wp)
- for (; *wp; wp++)
- rv = j_resume(*wp, bg);
- else
- rv = j_resume("%%", bg);
- return (bg ? 0 : rv);
-}
-#endif
-
-/* format a single kill item */
-static char *
-kill_fmt_entry(char *buf, size_t buflen, unsigned int i, const void *arg)
-{
- const struct kill_info *ki = (const struct kill_info *)arg;
-
- i++;
- shf_snprintf(buf, buflen, "%*u %*s %s",
- ki->num_width, i,
- ki->name_width, sigtraps[i].name,
- sigtraps[i].mess);
- return (buf);
-}
-
-int
-c_kill(const char **wp)
-{
- Trap *t = NULL;
- const char *p;
- bool lflag = false;
- int i, n, rv, sig;
-
- /* assume old style options if -digits or -UPPERCASE */
- if ((p = wp[1]) && *p == '-' && (ksh_isdigit(p[1]) ||
- ksh_isupper(p[1]))) {
- if (!(t = gettrap(p + 1, false))) {
- bi_errorf("bad signal '%s'", p + 1);
- return (1);
- }
- i = (wp[2] && strcmp(wp[2], "--") == 0) ? 3 : 2;
- } else {
- int optc;
-
- while ((optc = ksh_getopt(wp, &builtin_opt, "ls:")) != -1)
- switch (optc) {
- case 'l':
- lflag = true;
- break;
- case 's':
- if (!(t = gettrap(builtin_opt.optarg, true))) {
- bi_errorf("bad signal '%s'",
- builtin_opt.optarg);
- return (1);
- }
- break;
- case '?':
- return (1);
- }
- i = builtin_opt.optind;
- }
- if ((lflag && t) || (!wp[i] && !lflag)) {
-#ifndef MKSH_SMALL
- shf_puts("usage:\tkill [-s signame | -signum | -signame]"
- " { job | pid | pgrp } ...\n"
- "\tkill -l [exit_status ...]\n", shl_out);
-#endif
- bi_errorfz();
- return (1);
- }
-
- if (lflag) {
- if (wp[i]) {
- for (; wp[i]; i++) {
- if (!bi_getn(wp[i], &n))
- return (1);
- if (n > 128 && n < 128 + NSIG)
- n -= 128;
- if (n > 0 && n < NSIG)
- shprintf("%s\n", sigtraps[n].name);
- else
- shprintf("%d\n", n);
- }
- } else {
- ssize_t w, mess_cols, mess_octs;
- int j;
- struct kill_info ki;
-
- for (j = NSIG, ki.num_width = 1; j >= 10; j /= 10)
- ki.num_width++;
- ki.name_width = mess_cols = mess_octs = 0;
- for (j = 0; j < NSIG; j++) {
- w = strlen(sigtraps[j].name);
- if (w > ki.name_width)
- ki.name_width = w;
- w = strlen(sigtraps[j].mess);
- if (w > mess_octs)
- mess_octs = w;
- w = utf_mbswidth(sigtraps[j].mess);
- if (w > mess_cols)
- mess_cols = w;
- }
-
- print_columns(shl_stdout, (unsigned int)(NSIG - 1),
- kill_fmt_entry, (void *)&ki,
- ki.num_width + 1 + ki.name_width + 1 + mess_octs,
- ki.num_width + 1 + ki.name_width + 1 + mess_cols,
- true);
- }
- return (0);
- }
- rv = 0;
- sig = t ? t->signal : SIGTERM;
- for (; (p = wp[i]); i++) {
- if (*p == '%') {
- if (j_kill(p, sig))
- rv = 1;
- } else if (!getn(p, &n)) {
- bi_errorf("%s: %s", p,
- "arguments must be jobs or process IDs");
- rv = 1;
- } else {
- if (mksh_kill(n, sig) < 0) {
- bi_errorf("%s: %s", p, cstrerror(errno));
- rv = 1;
- }
- }
- }
- return (rv);
-}
-
-void
-getopts_reset(int val)
-{
- if (val >= 1) {
- ksh_getopt_reset(&user_opt, GF_NONAME | GF_PLUSOPT);
- user_opt.optind = user_opt.uoptind = val;
- }
-}
-
-int
-c_getopts(const char **wp)
-{
- int argc, optc, rv;
- const char *opts, *var;
- char buf[3];
- struct tbl *vq, *voptarg;
-
- if (ksh_getopt(wp, &builtin_opt, null) == '?')
- return (1);
- wp += builtin_opt.optind;
-
- opts = *wp++;
- if (!opts) {
- bi_errorf("missing %s argument", "options");
- return (1);
- }
-
- var = *wp++;
- if (!var) {
- bi_errorf("missing %s argument", "name");
- return (1);
- }
- if (!*var || *skip_varname(var, true)) {
- bi_errorf("%s: %s", var, "is not an identifier");
- return (1);
- }
-
- if (e->loc->next == NULL) {
- internal_warningf("%s: %s", "c_getopts", "no argv");
- return (1);
- }
- /* Which arguments are we parsing... */
- if (*wp == NULL)
- wp = e->loc->next->argv;
- else
- *--wp = e->loc->next->argv[0];
-
- /* Check that our saved state won't cause a core dump... */
- for (argc = 0; wp[argc]; argc++)
- ;
- if (user_opt.optind > argc ||
- (user_opt.p != 0 &&
- user_opt.p > strlen(wp[user_opt.optind - 1]))) {
- bi_errorf("arguments changed since last call");
- return (1);
- }
-
- user_opt.optarg = NULL;
- optc = ksh_getopt(wp, &user_opt, opts);
-
- if (optc >= 0 && optc != '?' && (user_opt.info & GI_PLUS)) {
- buf[0] = '+';
- buf[1] = optc;
- buf[2] = '\0';
- } else {
- /*
- * POSIX says var is set to ? at end-of-options, AT&T ksh
- * sets it to null - we go with POSIX...
- */
- buf[0] = optc < 0 ? '?' : optc;
- buf[1] = '\0';
- }
-
- /* AT&T ksh93 in fact does change OPTIND for unknown options too */
- user_opt.uoptind = user_opt.optind;
-
- voptarg = global("OPTARG");
- /* AT&T ksh clears ro and int */
- voptarg->flag &= ~RDONLY;
- /* Paranoia: ensure no bizarre results. */
- if (voptarg->flag & INTEGER)
- typeset("OPTARG", 0, INTEGER, 0, 0);
- if (user_opt.optarg == NULL)
- unset(voptarg, 1);
- else
- /* This can't fail (have cleared readonly/integer) */
- setstr(voptarg, user_opt.optarg, KSH_RETURN_ERROR);
-
- rv = 0;
-
- vq = global(var);
- /* Error message already printed (integer, readonly) */
- if (!setstr(vq, buf, KSH_RETURN_ERROR))
- rv = 2;
- if (Flag(FEXPORT))
- typeset(var, EXPORT, 0, 0, 0);
-
- return (optc < 0 ? 1 : rv);
-}
-
-#ifndef MKSH_NO_CMDLINE_EDITING
-int
-c_bind(const char **wp)
-{
- int optc, rv = 0;
-#ifndef MKSH_SMALL
- bool macro = false;
-#endif
- bool list = false;
- const char *cp;
- char *up;
-
- while ((optc = ksh_getopt(wp, &builtin_opt,
-#ifndef MKSH_SMALL
- "lm"
-#else
- "l"
-#endif
- )) != -1)
- switch (optc) {
- case 'l':
- list = true;
- break;
-#ifndef MKSH_SMALL
- case 'm':
- macro = true;
- break;
-#endif
- case '?':
- return (1);
- }
- wp += builtin_opt.optind;
-
- if (*wp == NULL)
- /* list all */
- rv = x_bind(NULL, NULL,
-#ifndef MKSH_SMALL
- false,
-#endif
- list);
-
- for (; *wp != NULL; wp++) {
- if ((cp = cstrchr(*wp, '=')) == NULL)
- up = NULL;
- else {
- strdupx(up, *wp, ATEMP);
- up[cp++ - *wp] = '\0';
- }
- if (x_bind(up ? up : *wp, cp,
-#ifndef MKSH_SMALL
- macro,
-#endif
- false))
- rv = 1;
- afree(up, ATEMP);
- }
-
- return (rv);
-}
-#endif
-
-int
-c_shift(const char **wp)
-{
- struct block *l = e->loc;
- int n;
- mksh_ari_t val;
- const char *arg;
-
- if (ksh_getopt(wp, &builtin_opt, null) == '?')
- return (1);
- arg = wp[builtin_opt.optind];
-
- if (arg) {
- evaluate(arg, &val, KSH_UNWIND_ERROR, false);
- n = val;
- } else
- n = 1;
- if (n < 0) {
- bi_errorf("%s: %s", arg, "bad number");
- return (1);
- }
- if (l->argc < n) {
- bi_errorf("nothing to shift");
- return (1);
- }
- l->argv[n] = l->argv[0];
- l->argv += n;
- l->argc -= n;
- return (0);
-}
-
-int
-c_umask(const char **wp)
-{
- int i, optc;
- const char *cp;
- bool symbolic = false;
- mode_t old_umask;
-
- while ((optc = ksh_getopt(wp, &builtin_opt, "S")) != -1)
- switch (optc) {
- case 'S':
- symbolic = true;
- break;
- case '?':
- return (1);
- }
- cp = wp[builtin_opt.optind];
- if (cp == NULL) {
- old_umask = umask((mode_t)0);
- umask(old_umask);
- if (symbolic) {
- char buf[18], *p;
- int j;
-
- old_umask = ~old_umask;
- p = buf;
- for (i = 0; i < 3; i++) {
- *p++ = "ugo"[i];
- *p++ = '=';
- for (j = 0; j < 3; j++)
- if (old_umask & (1 << (8 - (3*i + j))))
- *p++ = "rwx"[j];
- *p++ = ',';
- }
- p[-1] = '\0';
- shprintf("%s\n", buf);
- } else
- shprintf("%#3.3o\n", (unsigned int)old_umask);
- } else {
- mode_t new_umask;
-
- if (ksh_isdigit(*cp)) {
- for (new_umask = 0; *cp >= '0' && *cp <= '7'; cp++)
- new_umask = new_umask * 8 + (*cp - '0');
- if (*cp) {
- bi_errorf("bad number");
- return (1);
- }
- } else {
- /* symbolic format */
- int positions, new_val;
- char op;
-
- old_umask = umask((mode_t)0);
- /* in case of error */
- umask(old_umask);
- old_umask = ~old_umask;
- new_umask = old_umask;
- positions = 0;
- while (*cp) {
- while (*cp && vstrchr("augo", *cp))
- switch (*cp++) {
- case 'a':
- positions |= 0111;
- break;
- case 'u':
- positions |= 0100;
- break;
- case 'g':
- positions |= 0010;
- break;
- case 'o':
- positions |= 0001;
- break;
- }
- if (!positions)
- /* default is a */
- positions = 0111;
- if (!vstrchr("=+-", op = *cp))
- break;
- cp++;
- new_val = 0;
- while (*cp && vstrchr("rwxugoXs", *cp))
- switch (*cp++) {
- case 'r': new_val |= 04; break;
- case 'w': new_val |= 02; break;
- case 'x': new_val |= 01; break;
- case 'u':
- new_val |= old_umask >> 6;
- break;
- case 'g':
- new_val |= old_umask >> 3;
- break;
- case 'o':
- new_val |= old_umask >> 0;
- break;
- case 'X':
- if (old_umask & 0111)
- new_val |= 01;
- break;
- case 's':
- /* ignored */
- break;
- }
- new_val = (new_val & 07) * positions;
- switch (op) {
- case '-':
- new_umask &= ~new_val;
- break;
- case '=':
- new_umask = new_val |
- (new_umask & ~(positions * 07));
- break;
- case '+':
- new_umask |= new_val;
- }
- if (*cp == ',') {
- positions = 0;
- cp++;
- } else if (!vstrchr("=+-", *cp))
- break;
- }
- if (*cp) {
- bi_errorf("bad mask");
- return (1);
- }
- new_umask = ~new_umask;
- }
- umask(new_umask);
- }
- return (0);
-}
-
-int
-c_dot(const char **wp)
-{
- const char *file, *cp, **argv;
- int argc, i, errcode;
-
- if (ksh_getopt(wp, &builtin_opt, null) == '?')
- return (1);
-
- if ((cp = wp[builtin_opt.optind]) == NULL) {
- bi_errorf("missing argument");
- return (1);
- }
- if ((file = search_path(cp, path, R_OK, &errcode)) == NULL) {
- bi_errorf("%s: %s", cp, cstrerror(errcode));
- return (1);
- }
-
- /* Set positional parameters? */
- if (wp[builtin_opt.optind + 1]) {
- argv = wp + builtin_opt.optind;
- /* preserve $0 */
- argv[0] = e->loc->argv[0];
- for (argc = 0; argv[argc + 1]; argc++)
- ;
- } else {
- argc = 0;
- argv = NULL;
- }
- if ((i = include(file, argc, argv, false)) < 0) {
- /* should not happen */
- bi_errorf("%s: %s", cp, cstrerror(errno));
- return (1);
- }
- return (i);
-}
-
-int
-c_wait(const char **wp)
-{
- int rv = 0, sig;
-
- if (ksh_getopt(wp, &builtin_opt, null) == '?')
- return (1);
- wp += builtin_opt.optind;
- if (*wp == NULL) {
- while (waitfor(NULL, &sig) >= 0)
- ;
- rv = sig;
- } else {
- for (; *wp; wp++)
- rv = waitfor(*wp, &sig);
- if (rv < 0)
- /* magic exit code: bad job-id */
- rv = sig ? sig : 127;
- }
- return (rv);
-}
-
-static char REPLY[] = "REPLY";
-int
-c_read(const char **wp)
-{
-#define is_ifsws(c) (ctype((c), C_IFS) && ctype((c), C_IFSWS))
- int c, fd = 0, rv = 0, lastparm = 0;
- bool savehist = false, intoarray = false, aschars = false;
- bool rawmode = false, expanding = false;
- enum { LINES, BYTES, UPTO, READALL } readmode = LINES;
- char delim = '\n';
- size_t bytesleft = 128, bytesread;
- struct tbl *vp /* FU gcc */ = NULL, *vq;
- char *cp, *allocd = NULL, *xp;
- const char *ccp;
- XString xs;
- ptrdiff_t xsave = 0;
- mksh_ttyst tios;
- bool restore_tios = false;
-#if HAVE_SELECT
- bool hastimeout = false;
- struct timeval tv, tvlim;
-#define c_read_opts "Aad:N:n:prst:u,"
-#else
-#define c_read_opts "Aad:N:n:prsu,"
-#endif
-
- while ((c = ksh_getopt(wp, &builtin_opt, c_read_opts)) != -1)
- switch (c) {
- case 'a':
- aschars = true;
- /* FALLTHROUGH */
- case 'A':
- intoarray = true;
- break;
- case 'd':
- delim = builtin_opt.optarg[0];
- break;
- case 'N':
- case 'n':
- readmode = c == 'N' ? BYTES : UPTO;
- if (!bi_getn(builtin_opt.optarg, &c))
- return (2);
- if (c == -1) {
- readmode = READALL;
- bytesleft = 1024;
- } else
- bytesleft = (unsigned int)c;
- break;
- case 'p':
- if ((fd = coproc_getfd(R_OK, &ccp)) < 0) {
- bi_errorf("%s: %s", "-p", ccp);
- return (2);
- }
- break;
- case 'r':
- rawmode = true;
- break;
- case 's':
- savehist = true;
- break;
-#if HAVE_SELECT
- case 't':
- if (parse_usec(builtin_opt.optarg, &tv)) {
- bi_errorf("%s: %s '%s'", Tsynerr, cstrerror(errno),
- builtin_opt.optarg);
- return (2);
- }
- hastimeout = true;
- break;
-#endif
- case 'u':
- if (!builtin_opt.optarg[0])
- fd = 0;
- else if ((fd = check_fd(builtin_opt.optarg, R_OK, &ccp)) < 0) {
- bi_errorf("%s: %s: %s", "-u", builtin_opt.optarg, ccp);
- return (2);
- }
- break;
- case '?':
- return (2);
- }
- wp += builtin_opt.optind;
- if (*wp == NULL)
- *--wp = REPLY;
-
- if (intoarray && wp[1] != NULL) {
- bi_errorf("too many arguments");
- return (2);
- }
-
- if ((ccp = cstrchr(*wp, '?')) != NULL) {
- strdupx(allocd, *wp, ATEMP);
- allocd[ccp - *wp] = '\0';
- *wp = allocd;
- if (isatty(fd)) {
- /*
- * AT&T ksh says it prints prompt on fd if it's open
- * for writing and is a tty, but it doesn't do it
- * (it also doesn't check the interactive flag,
- * as is indicated in the Korn Shell book).
- */
- shf_puts(ccp + 1, shl_out);
- shf_flush(shl_out);
- }
- }
-
- Xinit(xs, xp, bytesleft, ATEMP);
-
- if (readmode == LINES)
- bytesleft = 1;
- else if (isatty(fd)) {
- x_mkraw(fd, &tios, true);
- restore_tios = true;
- }
-
-#if HAVE_SELECT
- if (hastimeout) {
- mksh_TIME(tvlim);
- timeradd(&tvlim, &tv, &tvlim);
- }
-#endif
-
- c_read_readloop:
-#if HAVE_SELECT
- if (hastimeout) {
- fd_set fdset;
-
- FD_ZERO(&fdset);
- FD_SET((unsigned int)fd, &fdset);
- mksh_TIME(tv);
- timersub(&tvlim, &tv, &tv);
- if (tv.tv_sec < 0) {
- /* timeout expired globally */
- rv = 1;
- goto c_read_out;
- }
-
- switch (select(fd + 1, &fdset, NULL, NULL, &tv)) {
- case 1:
- break;
- case 0:
- /* timeout expired for this call */
- rv = 1;
- goto c_read_out;
- default:
- bi_errorf("%s: %s", Tselect, cstrerror(errno));
- rv = 2;
- goto c_read_out;
- }
- }
-#endif
-
- bytesread = blocking_read(fd, xp, bytesleft);
- if (bytesread == (size_t)-1) {
- /* interrupted */
- if (errno == EINTR && fatal_trap_check()) {
- /*
- * Was the offending signal one that would
- * normally kill a process? If so, pretend
- * the read was killed.
- */
- rv = 2;
- goto c_read_out;
- }
- /* just ignore the signal */
- goto c_read_readloop;
- }
-
- switch (readmode) {
- case READALL:
- if (bytesread == 0) {
- /* end of file reached */
- rv = 1;
- goto c_read_readdone;
- }
- xp += bytesread;
- XcheckN(xs, xp, bytesleft);
- break;
-
- case UPTO:
- if (bytesread == 0)
- /* end of file reached */
- rv = 1;
- xp += bytesread;
- goto c_read_readdone;
-
- case BYTES:
- if (bytesread == 0) {
- /* end of file reached */
- rv = 1;
- xp = Xstring(xs, xp);
- goto c_read_readdone;
- }
- xp += bytesread;
- if ((bytesleft -= bytesread) == 0)
- goto c_read_readdone;
- break;
- case LINES:
- if (bytesread == 0) {
- /* end of file reached */
- rv = 1;
- goto c_read_readdone;
- }
- if ((c = *xp) == '\0' && !aschars && delim != '\0') {
- /* skip any read NULs unless delimiter */
- break;
- }
- if (expanding) {
- expanding = false;
- if (c == delim) {
- if (Flag(FTALKING_I) && isatty(fd)) {
- /*
- * set prompt in case this is
- * called from .profile or $ENV
- */
- set_prompt(PS2, NULL);
- pprompt(prompt, 0);
- }
- /* drop the backslash */
- --xp;
- /* and the delimiter */
- break;
- }
- } else if (c == delim) {
- goto c_read_readdone;
- } else if (!rawmode && c == '\\') {
- expanding = true;
- }
- Xcheck(xs, xp);
- ++xp;
- break;
- }
- goto c_read_readloop;
-
- c_read_readdone:
- bytesread = Xlength(xs, xp);
- Xput(xs, xp, '\0');
-
- /*-
- * state: we finished reading the input and NUL terminated it
- * Xstring(xs, xp) -> xp-1 = input string without trailing delim
- * rv = 1 if EOF, 0 otherwise (errors handled already)
- */
-
- if (rv == 1) {
- /* clean up coprocess if needed, on EOF */
- coproc_read_close(fd);
- if (readmode == READALL)
- /* EOF is no error here */
- rv = 0;
- }
-
- if (savehist)
- histsave(&source->line, Xstring(xs, xp), true, false);
-
- ccp = cp = Xclose(xs, xp);
- expanding = false;
- XinitN(xs, 128, ATEMP);
- if (intoarray) {
- vp = global(*wp);
- if (vp->flag & RDONLY) {
- c_read_splitro:
- bi_errorf("read-only: %s", *wp);
- c_read_spliterr:
- rv = 2;
- afree(cp, ATEMP);
- goto c_read_out;
- }
- /* exporting an array is currently pointless */
- unset(vp, 1);
- /* counter for array index */
- c = 0;
- }
- if (!aschars) {
- /* skip initial IFS whitespace */
- while (bytesread && is_ifsws(*ccp)) {
- ++ccp;
- --bytesread;
- }
- /* trim trailing IFS whitespace */
- while (bytesread && is_ifsws(ccp[bytesread - 1])) {
- --bytesread;
- }
- }
- c_read_splitloop:
- xp = Xstring(xs, xp);
- /* generate next word */
- if (!bytesread) {
- /* no more input */
- if (intoarray)
- goto c_read_splitdone;
- /* zero out next parameters */
- goto c_read_gotword;
- }
- if (aschars) {
- Xput(xs, xp, '1');
- Xput(xs, xp, '#');
- bytesleft = utf_ptradj(ccp);
- while (bytesleft && bytesread) {
- *xp++ = *ccp++;
- --bytesleft;
- --bytesread;
- }
- if (xp[-1] == '\0') {
- xp[-1] = '0';
- xp[-3] = '2';
- }
- goto c_read_gotword;
- }
-
- if (!intoarray && wp[1] == NULL)
- lastparm = 1;
-
- c_read_splitlast:
- /* copy until IFS character */
- while (bytesread) {
- char ch;
-
- ch = *ccp;
- if (expanding) {
- expanding = false;
- goto c_read_splitcopy;
- } else if (ctype(ch, C_IFS)) {
- break;
- } else if (!rawmode && ch == '\\') {
- expanding = true;
- } else {
- c_read_splitcopy:
- Xcheck(xs, xp);
- Xput(xs, xp, ch);
- }
- ++ccp;
- --bytesread;
- }
- xsave = Xsavepos(xs, xp);
- /* copy word delimiter: IFSWS+IFS,IFSWS */
- while (bytesread) {
- char ch;
-
- ch = *ccp;
- if (!ctype(ch, C_IFS))
- break;
- Xcheck(xs, xp);
- Xput(xs, xp, ch);
- ++ccp;
- --bytesread;
- if (!ctype(ch, C_IFSWS))
- break;
- }
- while (bytesread && is_ifsws(*ccp)) {
- Xcheck(xs, xp);
- Xput(xs, xp, *ccp);
- ++ccp;
- --bytesread;
- }
- /* if no more parameters, rinse and repeat */
- if (lastparm && bytesread) {
- ++lastparm;
- goto c_read_splitlast;
- }
- /* get rid of the delimiter unless we pack the rest */
- if (lastparm < 2)
- xp = Xrestpos(xs, xp, xsave);
- c_read_gotword:
- Xput(xs, xp, '\0');
- if (intoarray) {
- vq = arraysearch(vp, c++);
- } else {
- vq = global(*wp);
- /* must be checked before exporting */
- if (vq->flag & RDONLY)
- goto c_read_splitro;
- if (Flag(FEXPORT))
- typeset(*wp, EXPORT, 0, 0, 0);
- }
- if (!setstr(vq, Xstring(xs, xp), KSH_RETURN_ERROR))
- goto c_read_spliterr;
- if (aschars) {
- setint_v(vq, vq, false);
- /* protect from UTFMODE changes */
- vq->type = 0;
- }
- if (intoarray || *++wp != NULL)
- goto c_read_splitloop;
-
- c_read_splitdone:
- /* free up */
- afree(cp, ATEMP);
-
- c_read_out:
- afree(allocd, ATEMP);
- Xfree(xs, xp);
- if (restore_tios)
- mksh_tcset(fd, &tios);
- return (rv);
-#undef is_ifsws
-}
-
-int
-c_eval(const char **wp)
-{
- struct source *s, *saves = source;
- unsigned char savef;
- int rv;
-
- if (ksh_getopt(wp, &builtin_opt, null) == '?')
- return (1);
- s = pushs(SWORDS, ATEMP);
- s->u.strv = wp + builtin_opt.optind;
-
- /*-
- * The following code handles the case where the command is
- * empty due to failed command substitution, for example by
- * eval "$(false)"
- * This has historically returned 1 by AT&T ksh88. In this
- * case, shell() will not set or change exstat because the
- * compiled tree is empty, so it will use the value we pass
- * from subst_exstat, which is cleared in execute(), so it
- * should have been 0 if there were no substitutions.
- *
- * POSIX however says we don't do this, even though it is
- * traditionally done. AT&T ksh93 agrees with POSIX, so we
- * do. The following is an excerpt from SUSv4 [1003.2-2008]:
- *
- * 2.9.1: Simple Commands
- * ... If there is a command name, execution shall
- * continue as described in 2.9.1.1 [Command Search
- * and Execution]. If there is no command name, but
- * the command contained a command substitution, the
- * command shall complete with the exit status of the
- * last command substitution performed.
- * 2.9.1.1: Command Search and Execution
- * (1) a. If the command name matches the name of a
- * special built-in utility, that special built-in
- * utility shall be invoked.
- * 2.14.5: eval
- * If there are no arguments, or only null arguments,
- * eval shall return a zero exit status; ...
- */
- /* AT&T ksh88: use subst_exstat */
- /* exstat = subst_exstat; */
- /* SUSv4: OR with a high value never written otherwise */
- exstat |= 0x4000;
-
- savef = Flag(FERREXIT);
- Flag(FERREXIT) |= 0x80;
- rv = shell(s, false);
- Flag(FERREXIT) = savef;
- source = saves;
- afree(s, ATEMP);
- if (exstat & 0x4000)
- /* detect old exstat, use 0 in that case */
- rv = 0;
- return (rv);
-}
-
-int
-c_trap(const char **wp)
-{
- int i;
- const char *s;
- Trap *p;
-
- if (ksh_getopt(wp, &builtin_opt, null) == '?')
- return (1);
- wp += builtin_opt.optind;
-
- if (*wp == NULL) {
- for (p = sigtraps, i = NSIG + 1; --i >= 0; p++)
- if (p->trap != NULL) {
- shf_puts("trap -- ", shl_stdout);
- print_value_quoted(shl_stdout, p->trap);
- shprintf(" %s\n", p->name);
- }
- return (0);
- }
-
- /*
- * Use case sensitive lookup for first arg so the
- * command 'exit' isn't confused with the pseudo-signal
- * 'EXIT'.
- */
- /* get command */
- s = (gettrap(*wp, false) == NULL) ? *wp++ : NULL;
- if (s != NULL && s[0] == '-' && s[1] == '\0')
- s = NULL;
-
- /* set/clear traps */
- i = 0;
- while (*wp != NULL)
- if ((p = gettrap(*wp++, true)) == NULL) {
- warningf(true, "%s: %s '%s'", builtin_argv0,
- "bad signal", wp[-1]);
- ++i;
- } else
- settrap(p, s);
- return (i);
-}
-
-int
-c_exitreturn(const char **wp)
-{
- int n, how = LEXIT;
- const char *arg;
-
- if (ksh_getopt(wp, &builtin_opt, null) == '?')
- goto c_exitreturn_err;
- arg = wp[builtin_opt.optind];
-
- if (arg) {
- if (!getn(arg, &n)) {
- exstat = 1;
- warningf(true, "%s: %s", arg, "bad number");
- } else
- exstat = n & 0xFF;
- } else if (trap_exstat != -1)
- exstat = trap_exstat;
- if (wp[0][0] == 'r') {
- /* return */
- struct env *ep;
-
- /*
- * need to tell if this is exit or return so trap exit will
- * work right (POSIX)
- */
- for (ep = e; ep; ep = ep->oenv)
- if (STOP_RETURN(ep->type)) {
- how = LRETURN;
- break;
- }
- }
-
- if (how == LEXIT && !really_exit && j_stopped_running()) {
- really_exit = true;
- how = LSHELL;
- }
-
- /* get rid of any i/o redirections */
- quitenv(NULL);
- unwind(how);
- /* NOTREACHED */
-
- c_exitreturn_err:
- return (1);
-}
-
-int
-c_brkcont(const char **wp)
-{
- unsigned int quit;
- int n;
- struct env *ep, *last_ep = NULL;
- const char *arg;
-
- if (ksh_getopt(wp, &builtin_opt, null) == '?')
- goto c_brkcont_err;
- arg = wp[builtin_opt.optind];
-
- if (!arg)
- n = 1;
- else if (!bi_getn(arg, &n))
- goto c_brkcont_err;
- if (n <= 0) {
- /* AT&T ksh does this for non-interactive shells only - weird */
- bi_errorf("%s: %s", arg, "bad value");
- goto c_brkcont_err;
- }
- quit = (unsigned int)n;
-
- /* Stop at E_NONE, E_PARSE, E_FUNC, or E_INCL */
- for (ep = e; ep && !STOP_BRKCONT(ep->type); ep = ep->oenv)
- if (ep->type == E_LOOP) {
- if (--quit == 0)
- break;
- ep->flags |= EF_BRKCONT_PASS;
- last_ep = ep;
- }
-
- if (quit) {
- /*
- * AT&T ksh doesn't print a message - just does what it
- * can. We print a message 'cause it helps in debugging
- * scripts, but don't generate an error (ie, keep going).
- */
- if ((unsigned int)n == quit) {
- warningf(true, "%s: %s %s", wp[0], "can't", wp[0]);
- return (0);
- }
- /*
- * POSIX says if n is too big, the last enclosing loop
- * shall be used. Doesn't say to print an error but we
- * do anyway 'cause the user messed up.
- */
- if (last_ep)
- last_ep->flags &= ~EF_BRKCONT_PASS;
- warningf(true, "%s: can only %s %u level(s)",
- wp[0], wp[0], (unsigned int)n - quit);
- }
-
- unwind(*wp[0] == 'b' ? LBREAK : LCONTIN);
- /* NOTREACHED */
-
- c_brkcont_err:
- return (1);
-}
-
-int
-c_set(const char **wp)
-{
- int argi;
- bool setargs;
- struct block *l = e->loc;
- const char **owp;
-
- if (wp[1] == NULL) {
- static const char *args[] = { Tset, "-", NULL };
- return (c_typeset(args));
- }
-
- argi = parse_args(wp, OF_SET, &setargs);
- if (argi < 0)
- return (1);
- /* set $# and $* */
- if (setargs) {
- wp += argi - 1;
- owp = wp;
- /* save $0 */
- wp[0] = l->argv[0];
- while (*++wp != NULL)
- strdupx(*wp, *wp, &l->area);
- l->argc = wp - owp - 1;
- l->argv = alloc2(l->argc + 2, sizeof(char *), &l->area);
- for (wp = l->argv; (*wp++ = *owp++) != NULL; )
- ;
- }
- /*-
- * POSIX says set exit status is 0, but old scripts that use
- * getopt(1) use the construct
- * set -- $(getopt ab:c "$@")
- * which assumes the exit value set will be that of the $()
- * (subst_exstat is cleared in execute() so that it will be 0
- * if there are no command substitutions).
- */
-#ifdef MKSH_LEGACY_MODE
- /* traditional behaviour, unless set -o posix */
- return (Flag(FPOSIX) ? 0 : subst_exstat);
-#else
- /* conformant behaviour, unless set -o sh +o posix */
- return (Flag(FSH) && !Flag(FPOSIX) ? subst_exstat : 0);
-#endif
-}
-
-int
-c_unset(const char **wp)
-{
- const char *id;
- int optc, rv = 0;
- bool unset_var = true;
-
- while ((optc = ksh_getopt(wp, &builtin_opt, "fv")) != -1)
- switch (optc) {
- case 'f':
- unset_var = false;
- break;
- case 'v':
- unset_var = true;
- break;
- case '?':
- /*XXX not reached due to GF_ERROR */
- return (2);
- }
- wp += builtin_opt.optind;
- for (; (id = *wp) != NULL; wp++)
- if (unset_var) {
- /* unset variable */
- struct tbl *vp;
- char *cp = NULL;
- size_t n;
-
- n = strlen(id);
- if (n > 3 && id[n-3] == '[' && id[n-2] == '*' &&
- id[n-1] == ']') {
- strndupx(cp, id, n - 3, ATEMP);
- id = cp;
- optc = 3;
- } else
- optc = vstrchr(id, '[') ? 0 : 1;
-
- vp = global(id);
- afree(cp, ATEMP);
-
- if ((vp->flag&RDONLY)) {
- warningf(true, "read-only: %s", vp->name);
- rv = 1;
- } else
- unset(vp, optc);
- } else
- /* unset function */
- define(id, NULL);
- return (rv);
-}
-
-static void
-p_time(struct shf *shf, bool posix, long tv_sec, int tv_usec, int width,
- const char *prefix, const char *suffix)
-{
- tv_usec /= 10000;
- if (posix)
- shf_fprintf(shf, "%s%*ld.%02d%s", prefix, width,
- tv_sec, tv_usec, suffix);
- else
- shf_fprintf(shf, "%s%*ldm%d.%02ds%s", prefix, width,
- tv_sec / 60, (int)(tv_sec % 60), tv_usec, suffix);
-}
-
-int
-c_times(const char **wp MKSH_A_UNUSED)
-{
- struct rusage usage;
-
- getrusage(RUSAGE_SELF, &usage);
- p_time(shl_stdout, false, usage.ru_utime.tv_sec,
- usage.ru_utime.tv_usec, 0, null, " ");
- p_time(shl_stdout, false, usage.ru_stime.tv_sec,
- usage.ru_stime.tv_usec, 0, null, "\n");
-
- getrusage(RUSAGE_CHILDREN, &usage);
- p_time(shl_stdout, false, usage.ru_utime.tv_sec,
- usage.ru_utime.tv_usec, 0, null, " ");
- p_time(shl_stdout, false, usage.ru_stime.tv_sec,
- usage.ru_stime.tv_usec, 0, null, "\n");
-
- return (0);
-}
-
-/*
- * time pipeline (really a statement, not a built-in command)
- */
-int
-timex(struct op *t, int f, volatile int *xerrok)
-{
-#define TF_NOARGS BIT(0)
-#define TF_NOREAL BIT(1) /* don't report real time */
-#define TF_POSIX BIT(2) /* report in POSIX format */
- int rv = 0, tf = 0;
- struct rusage ru0, ru1, cru0, cru1;
- struct timeval usrtime, systime, tv0, tv1;
-
- mksh_TIME(tv0);
- getrusage(RUSAGE_SELF, &ru0);
- getrusage(RUSAGE_CHILDREN, &cru0);
- if (t->left) {
- /*
- * Two ways of getting cpu usage of a command: just use t0
- * and t1 (which will get cpu usage from other jobs that
- * finish while we are executing t->left), or get the
- * cpu usage of t->left. AT&T ksh does the former, while
- * pdksh tries to do the later (the j_usrtime hack doesn't
- * really work as it only counts the last job).
- */
- timerclear(&j_usrtime);
- timerclear(&j_systime);
- rv = execute(t->left, f | XTIME, xerrok);
- if (t->left->type == TCOM)
- tf |= t->left->str[0];
- mksh_TIME(tv1);
- getrusage(RUSAGE_SELF, &ru1);
- getrusage(RUSAGE_CHILDREN, &cru1);
- } else
- tf = TF_NOARGS;
-
- if (tf & TF_NOARGS) {
- /* ksh93 - report shell times (shell+kids) */
- tf |= TF_NOREAL;
- timeradd(&ru0.ru_utime, &cru0.ru_utime, &usrtime);
- timeradd(&ru0.ru_stime, &cru0.ru_stime, &systime);
- } else {
- timersub(&ru1.ru_utime, &ru0.ru_utime, &usrtime);
- timeradd(&usrtime, &j_usrtime, &usrtime);
- timersub(&ru1.ru_stime, &ru0.ru_stime, &systime);
- timeradd(&systime, &j_systime, &systime);
- }
-
- if (!(tf & TF_NOREAL)) {
- timersub(&tv1, &tv0, &tv1);
- if (tf & TF_POSIX)
- p_time(shl_out, true, tv1.tv_sec, tv1.tv_usec,
- 5, "real ", "\n");
- else
- p_time(shl_out, false, tv1.tv_sec, tv1.tv_usec,
- 5, null, " real ");
- }
- if (tf & TF_POSIX)
- p_time(shl_out, true, usrtime.tv_sec, usrtime.tv_usec,
- 5, "user ", "\n");
- else
- p_time(shl_out, false, usrtime.tv_sec, usrtime.tv_usec,
- 5, null, " user ");
- if (tf & TF_POSIX)
- p_time(shl_out, true, systime.tv_sec, systime.tv_usec,
- 5, "sys ", "\n");
- else
- p_time(shl_out, false, systime.tv_sec, systime.tv_usec,
- 5, null, " system\n");
- shf_flush(shl_out);
-
- return (rv);
-}
-
-void
-timex_hook(struct op *t, char **volatile *app)
-{
- char **wp = *app;
- int optc, i, j;
- Getopt opt;
-
- ksh_getopt_reset(&opt, 0);
- /* start at the start */
- opt.optind = 0;
- while ((optc = ksh_getopt((const char **)wp, &opt, ":p")) != -1)
- switch (optc) {
- case 'p':
- t->str[0] |= TF_POSIX;
- break;
- case '?':
- errorf("time: -%s %s", opt.optarg,
- "unknown option");
- case ':':
- errorf("time: -%s %s", opt.optarg,
- "requires an argument");
- }
- /* Copy command words down over options. */
- if (opt.optind != 0) {
- for (i = 0; i < opt.optind; i++)
- afree(wp[i], ATEMP);
- for (i = 0, j = opt.optind; (wp[i] = wp[j]); i++, j++)
- ;
- }
- if (!wp[0])
- t->str[0] |= TF_NOARGS;
- *app = wp;
-}
-
-/* exec with no args - args case is taken care of in comexec() */
-int
-c_exec(const char **wp MKSH_A_UNUSED)
-{
- int i;
-
- /* make sure redirects stay in place */
- if (e->savefd != NULL) {
- for (i = 0; i < NUFILE; i++) {
- if (e->savefd[i] > 0)
- close(e->savefd[i]);
-#ifndef MKSH_LEGACY_MODE
- /*
- * keep all file descriptors > 2 private for ksh,
- * but not for POSIX or legacy/kludge sh
- */
- if (!Flag(FPOSIX) && !Flag(FSH) && i > 2 &&
- e->savefd[i])
- fcntl(i, F_SETFD, FD_CLOEXEC);
-#endif
- }
- e->savefd = NULL;
- }
- return (0);
-}
-
-#if HAVE_MKNOD
-int
-c_mknod(const char **wp)
-{
- int argc, optc, rv = 0;
- bool ismkfifo = false;
- const char **argv;
- void *set = NULL;
- mode_t mode = 0, oldmode = 0;
-
- while ((optc = ksh_getopt(wp, &builtin_opt, "m:")) != -1) {
- switch (optc) {
- case 'm':
- set = setmode(builtin_opt.optarg);
- if (set == NULL) {
- bi_errorf("invalid file mode");
- return (1);
- }
- mode = getmode(set, (mode_t)(DEFFILEMODE));
- free_ossetmode(set);
- break;
- default:
- goto c_mknod_usage;
- }
- }
- argv = &wp[builtin_opt.optind];
- if (argv[0] == NULL)
- goto c_mknod_usage;
- for (argc = 0; argv[argc]; argc++)
- ;
- if (argc == 2 && argv[1][0] == 'p')
- ismkfifo = true;
- else if (argc != 4 || (argv[1][0] != 'b' && argv[1][0] != 'c'))
- goto c_mknod_usage;
-
- if (set != NULL)
- oldmode = umask((mode_t)0);
- else
- mode = DEFFILEMODE;
-
- mode |= (argv[1][0] == 'b') ? S_IFBLK :
- (argv[1][0] == 'c') ? S_IFCHR : 0;
-
- if (!ismkfifo) {
- unsigned long majnum, minnum;
- dev_t dv;
- char *c;
-
- majnum = strtoul(argv[2], &c, 0);
- if ((c == argv[2]) || (*c != '\0')) {
- bi_errorf("non-numeric %s %s '%s'", "device", "major", argv[2]);
- goto c_mknod_err;
- }
- minnum = strtoul(argv[3], &c, 0);
- if ((c == argv[3]) || (*c != '\0')) {
- bi_errorf("non-numeric %s %s '%s'", "device", "minor", argv[3]);
- goto c_mknod_err;
- }
- dv = makedev(majnum, minnum);
- if ((unsigned long)(major(dv)) != majnum) {
- bi_errorf("%s %s too large: %lu", "device", "major", majnum);
- goto c_mknod_err;
- }
- if ((unsigned long)(minor(dv)) != minnum) {
- bi_errorf("%s %s too large: %lu", "device", "minor", minnum);
- goto c_mknod_err;
- }
- if (mknod(argv[0], mode, dv))
- goto c_mknod_failed;
- } else if (mkfifo(argv[0], mode)) {
- c_mknod_failed:
- bi_errorf("%s: %s", argv[0], cstrerror(errno));
- c_mknod_err:
- rv = 1;
- }
-
- if (set)
- umask(oldmode);
- return (rv);
- c_mknod_usage:
- bi_errorf("%s: %s", "usage", "mknod [-m mode] name b|c major minor");
- bi_errorf("%s: %s", "usage", "mknod [-m mode] name p");
- return (1);
-}
-#endif
-
-/*-
- test(1) roughly accepts the following grammar:
- oexpr ::= aexpr | aexpr "-o" oexpr ;
- aexpr ::= nexpr | nexpr "-a" aexpr ;
- nexpr ::= primary | "!" nexpr ;
- primary ::= unary-operator operand
- | operand binary-operator operand
- | operand
- | "(" oexpr ")"
- ;
-
- unary-operator ::= "-a"|"-r"|"-w"|"-x"|"-e"|"-f"|"-d"|"-c"|"-b"|"-p"|
- "-u"|"-g"|"-k"|"-s"|"-t"|"-z"|"-n"|"-o"|"-O"|"-G"|
- "-L"|"-h"|"-S"|"-H";
-
- binary-operator ::= "="|"=="|"!="|"-eq"|"-ne"|"-ge"|"-gt"|"-le"|"-lt"|
- "-nt"|"-ot"|"-ef"|
- "<"|">" # rules used for [[ ... ]] expressions
- ;
- operand ::= <anything>
-*/
-
-/* POSIX says > 1 for errors */
-#define T_ERR_EXIT 2
-
-int
-c_test(const char **wp)
-{
- int argc, rv, invert = 0;
- Test_env te;
- Test_op op;
- const char *lhs, **swp;
-
- te.flags = 0;
- te.isa = ptest_isa;
- te.getopnd = ptest_getopnd;
- te.eval = test_eval;
- te.error = ptest_error;
-
- for (argc = 0; wp[argc]; argc++)
- ;
- mkssert(argc > 0);
- mkssert(wp[0] != NULL);
-
- if (strcmp(wp[0], "[") == 0) {
- if (strcmp(wp[--argc], "]") != 0) {
- bi_errorf("missing ]");
- return (T_ERR_EXIT);
- }
- }
-
- te.pos.wp = wp + 1;
- te.wp_end = wp + argc;
-
- /*
- * Attempt to conform to POSIX special cases. This is pretty
- * dumb code straight-forward from the 2008 spec, but unless
- * the old pdksh code doesn't live from so many assumptions.
- * It does, though, inline some calls to '(*te.funcname)()'.
- */
- switch (argc - 1) {
- case 0:
- return (1);
- case 1:
- ptest_one:
- op = TO_STNZE;
- goto ptest_unary;
- case 2:
- ptest_two:
- if (ptest_isa(&te, TM_NOT)) {
- ++invert;
- goto ptest_one;
- }
- if ((op = ptest_isa(&te, TM_UNOP))) {
- ptest_unary:
- rv = test_eval(&te, op, *te.pos.wp++, NULL, true);
- ptest_out:
- return ((invert & 1) ? rv : !rv);
- }
- /* let the parser deal with anything else */
- break;
- case 3:
- ptest_three:
- swp = te.pos.wp;
- /* use inside knowledge of ptest_getopnd inlined below */
- lhs = *te.pos.wp++;
- if ((op = ptest_isa(&te, TM_BINOP))) {
- /* test lhs op rhs */
- rv = test_eval(&te, op, lhs, *te.pos.wp++, true);
- goto ptest_out;
- }
- /* back up to lhs */
- te.pos.wp = swp;
- if (ptest_isa(&te, TM_NOT)) {
- ++invert;
- goto ptest_two;
- }
- if (ptest_isa(&te, TM_OPAREN)) {
- swp = te.pos.wp;
- /* skip operand, without evaluation */
- te.pos.wp++;
- /* check for closing parenthesis */
- op = ptest_isa(&te, TM_CPAREN);
- /* back up to operand */
- te.pos.wp = swp;
- /* if there was a closing paren, handle it */
- if (op)
- goto ptest_one;
- /* backing up is done before calling the parser */
- }
- /* let the parser deal with it */
- break;
- case 4:
- if (ptest_isa(&te, TM_NOT)) {
- ++invert;
- goto ptest_three;
- }
- if (ptest_isa(&te, TM_OPAREN)) {
- swp = te.pos.wp;
- /* skip two operands, without evaluation */
- te.pos.wp++;
- te.pos.wp++;
- /* check for closing parenthesis */
- op = ptest_isa(&te, TM_CPAREN);
- /* back up to first operand */
- te.pos.wp = swp;
- /* if there was a closing paren, handle it */
- if (op)
- goto ptest_two;
- /* backing up is done before calling the parser */
- }
- /* defer this to the parser */
- break;
- }
-
- /* "The results are unspecified." */
- te.pos.wp = wp + 1;
- return (test_parse(&te));
-}
-
-/*
- * Generic test routines.
- */
-
-Test_op
-test_isop(Test_meta meta, const char *s)
-{
- char sc1;
- const struct t_op *tbl;
-
- tbl = meta == TM_UNOP ? u_ops : b_ops;
- if (*s) {
- sc1 = s[1];
- for (; tbl->op_text[0]; tbl++)
- if (sc1 == tbl->op_text[1] && !strcmp(s, tbl->op_text))
- return (tbl->op_num);
- }
- return (TO_NONOP);
-}
-
-int
-test_eval(Test_env *te, Test_op op, const char *opnd1, const char *opnd2,
- bool do_eval)
-{
- int i, s;
- size_t k;
- struct stat b1, b2;
- mksh_ari_t v1, v2;
-
- if (!do_eval)
- return (0);
-
-#ifdef DEBUG
- switch (op) {
- /* Binary operators */
- case TO_STEQL:
- case TO_STNEQ:
- case TO_STLT:
- case TO_STGT:
- case TO_INTEQ:
- case TO_INTNE:
- case TO_INTGT:
- case TO_INTGE:
- case TO_INTLT:
- case TO_INTLE:
- case TO_FILEQ:
- case TO_FILNT:
- case TO_FILOT:
- /* consistency check, but does not happen in practice */
- if (!opnd2) {
- te->flags |= TEF_ERROR;
- return (1);
- }
- break;
- default:
- /* for completeness of switch */
- break;
- }
-#endif
-
- switch (op) {
-
- /*
- * Unary Operators
- */
-
- /* -n */
- case TO_STNZE:
- return (*opnd1 != '\0');
-
- /* -z */
- case TO_STZER:
- return (*opnd1 == '\0');
-
- /* -o */
- case TO_OPTION:
- if ((i = *opnd1) == '!' || i == '?')
- opnd1++;
- if ((k = option(opnd1)) == (size_t)-1)
- return (0);
- return (i == '?' ? 1 : i == '!' ? !Flag(k) : Flag(k));
-
- /* -r */
- case TO_FILRD:
- /* LINTED use of access */
- return (access(opnd1, R_OK) == 0);
-
- /* -w */
- case TO_FILWR:
- /* LINTED use of access */
- return (access(opnd1, W_OK) == 0);
-
- /* -x */
- case TO_FILEX:
- return (ksh_access(opnd1, X_OK) == 0);
-
- /* -a */
- case TO_FILAXST:
- /* -e */
- case TO_FILEXST:
- return (stat(opnd1, &b1) == 0);
-
- /* -r */
- case TO_FILREG:
- return (stat(opnd1, &b1) == 0 && S_ISREG(b1.st_mode));
-
- /* -d */
- case TO_FILID:
- return (stat(opnd1, &b1) == 0 && S_ISDIR(b1.st_mode));
-
- /* -c */
- case TO_FILCDEV:
- return (stat(opnd1, &b1) == 0 && S_ISCHR(b1.st_mode));
-
- /* -b */
- case TO_FILBDEV:
- return (stat(opnd1, &b1) == 0 && S_ISBLK(b1.st_mode));
-
- /* -p */
- case TO_FILFIFO:
- return (stat(opnd1, &b1) == 0 && S_ISFIFO(b1.st_mode));
-
- /* -h or -L */
- case TO_FILSYM:
-#ifdef MKSH__NO_SYMLINK
- return (0);
-#else
- return (lstat(opnd1, &b1) == 0 && S_ISLNK(b1.st_mode));
-#endif
-
- /* -S */
- case TO_FILSOCK:
- return (stat(opnd1, &b1) == 0 && S_ISSOCK(b1.st_mode));
-
- /* -H => HP context dependent files (directories) */
- case TO_FILCDF:
-#ifdef S_ISCDF
- {
- char *nv;
-
- /*
- * Append a + to filename and check to see if result is
- * a setuid directory. CDF stuff in general is hookey,
- * since it breaks for, e.g., the following sequence:
- * echo hi >foo+; mkdir foo; echo bye >foo/default;
- * chmod u+s foo (foo+ refers to the file with hi in it,
- * there is no way to get at the file with bye in it;
- * please correct me if I'm wrong about this).
- */
-
- nv = shf_smprintf("%s+", opnd1);
- i = (stat(nv, &b1) == 0 && S_ISCDF(b1.st_mode));
- afree(nv, ATEMP);
- return (i);
- }
-#else
- return (0);
-#endif
-
- /* -u */
- case TO_FILSETU:
- return (stat(opnd1, &b1) == 0 &&
- (b1.st_mode & S_ISUID) == S_ISUID);
-
- /* -g */
- case TO_FILSETG:
- return (stat(opnd1, &b1) == 0 &&
- (b1.st_mode & S_ISGID) == S_ISGID);
-
- /* -k */
- case TO_FILSTCK:
-#ifdef S_ISVTX
- return (stat(opnd1, &b1) == 0 &&
- (b1.st_mode & S_ISVTX) == S_ISVTX);
-#else
- return (0);
-#endif
-
- /* -s */
- case TO_FILGZ:
- return (stat(opnd1, &b1) == 0 && (off_t)b1.st_size > (off_t)0);
-
- /* -t */
- case TO_FILTT:
- if (opnd1 && !bi_getn(opnd1, &i)) {
- te->flags |= TEF_ERROR;
- i = 0;
- } else
- i = isatty(opnd1 ? i : 0);
- return (i);
-
- /* -O */
- case TO_FILUID:
- return (stat(opnd1, &b1) == 0 && (uid_t)b1.st_uid == ksheuid);
-
- /* -G */
- case TO_FILGID:
- return (stat(opnd1, &b1) == 0 && (gid_t)b1.st_gid == getegid());
-
- /*
- * Binary Operators
- */
-
- /* = */
- case TO_STEQL:
- if (te->flags & TEF_DBRACKET)
- return (gmatchx(opnd1, opnd2, false));
- return (strcmp(opnd1, opnd2) == 0);
-
- /* != */
- case TO_STNEQ:
- if (te->flags & TEF_DBRACKET)
- return (!gmatchx(opnd1, opnd2, false));
- return (strcmp(opnd1, opnd2) != 0);
-
- /* < */
- case TO_STLT:
- return (strcmp(opnd1, opnd2) < 0);
-
- /* > */
- case TO_STGT:
- return (strcmp(opnd1, opnd2) > 0);
-
- /* -eq */
- case TO_INTEQ:
- /* -ne */
- case TO_INTNE:
- /* -ge */
- case TO_INTGE:
- /* -gt */
- case TO_INTGT:
- /* -le */
- case TO_INTLE:
- /* -lt */
- case TO_INTLT:
- if (!evaluate(opnd1, &v1, KSH_RETURN_ERROR, false) ||
- !evaluate(opnd2, &v2, KSH_RETURN_ERROR, false)) {
- /* error already printed.. */
- te->flags |= TEF_ERROR;
- return (1);
- }
- switch (op) {
- case TO_INTEQ:
- return (v1 == v2);
- case TO_INTNE:
- return (v1 != v2);
- case TO_INTGE:
- return (v1 >= v2);
- case TO_INTGT:
- return (v1 > v2);
- case TO_INTLE:
- return (v1 <= v2);
- case TO_INTLT:
- return (v1 < v2);
- default:
- /* NOTREACHED */
- break;
- }
- /* NOTREACHED */
-
- /* -nt */
- case TO_FILNT:
- /*
- * ksh88/ksh93 succeed if file2 can't be stated
- * (subtly different from 'does not exist').
- */
- return (stat(opnd1, &b1) == 0 &&
- (((s = stat(opnd2, &b2)) == 0 &&
- b1.st_mtime > b2.st_mtime) || s < 0));
-
- /* -ot */
- case TO_FILOT:
- /*
- * ksh88/ksh93 succeed if file1 can't be stated
- * (subtly different from 'does not exist').
- */
- return (stat(opnd2, &b2) == 0 &&
- (((s = stat(opnd1, &b1)) == 0 &&
- b1.st_mtime < b2.st_mtime) || s < 0));
-
- /* -ef */
- case TO_FILEQ:
- return (stat (opnd1, &b1) == 0 && stat (opnd2, &b2) == 0 &&
- b1.st_dev == b2.st_dev && b1.st_ino == b2.st_ino);
-
- /* all other cases */
- case TO_NONOP:
- case TO_NONNULL:
- /* throw the error */
- break;
- }
- (*te->error)(te, 0, "internal error: unknown op");
- return (1);
-}
-
-int
-test_parse(Test_env *te)
-{
- int rv;
-
- rv = test_oexpr(te, 1);
-
- if (!(te->flags & TEF_ERROR) && !(*te->isa)(te, TM_END))
- (*te->error)(te, 0, "unexpected operator/operand");
-
- return ((te->flags & TEF_ERROR) ? T_ERR_EXIT : !rv);
-}
-
-static int
-test_oexpr(Test_env *te, bool do_eval)
-{
- int rv;
-
- if ((rv = test_aexpr(te, do_eval)))
- do_eval = false;
- if (!(te->flags & TEF_ERROR) && (*te->isa)(te, TM_OR))
- return (test_oexpr(te, do_eval) || rv);
- return (rv);
-}
-
-static int
-test_aexpr(Test_env *te, bool do_eval)
-{
- int rv;
-
- if (!(rv = test_nexpr(te, do_eval)))
- do_eval = false;
- if (!(te->flags & TEF_ERROR) && (*te->isa)(te, TM_AND))
- return (test_aexpr(te, do_eval) && rv);
- return (rv);
-}
-
-static int
-test_nexpr(Test_env *te, bool do_eval)
-{
- if (!(te->flags & TEF_ERROR) && (*te->isa)(te, TM_NOT))
- return (!test_nexpr(te, do_eval));
- return (test_primary(te, do_eval));
-}
-
-static int
-test_primary(Test_env *te, bool do_eval)
-{
- const char *opnd1, *opnd2;
- int rv;
- Test_op op;
-
- if (te->flags & TEF_ERROR)
- return (0);
- if ((*te->isa)(te, TM_OPAREN)) {
- rv = test_oexpr(te, do_eval);
- if (te->flags & TEF_ERROR)
- return (0);
- if (!(*te->isa)(te, TM_CPAREN)) {
- (*te->error)(te, 0, "missing )");
- return (0);
- }
- return (rv);
- }
- /*
- * Binary should have precedence over unary in this case
- * so that something like test \( -f = -f \) is accepted
- */
- if ((te->flags & TEF_DBRACKET) || (&te->pos.wp[1] < te->wp_end &&
- !test_isop(TM_BINOP, te->pos.wp[1]))) {
- if ((op = (*te->isa)(te, TM_UNOP))) {
- /* unary expression */
- opnd1 = (*te->getopnd)(te, op, do_eval);
- if (!opnd1) {
- (*te->error)(te, -1, "missing argument");
- return (0);
- }
-
- return ((*te->eval)(te, op, opnd1, NULL, do_eval));
- }
- }
- opnd1 = (*te->getopnd)(te, TO_NONOP, do_eval);
- if (!opnd1) {
- (*te->error)(te, 0, "expression expected");
- return (0);
- }
- if ((op = (*te->isa)(te, TM_BINOP))) {
- /* binary expression */
- opnd2 = (*te->getopnd)(te, op, do_eval);
- if (!opnd2) {
- (*te->error)(te, -1, "missing second argument");
- return (0);
- }
-
- return ((*te->eval)(te, op, opnd1, opnd2, do_eval));
- }
- return ((*te->eval)(te, TO_STNZE, opnd1, NULL, do_eval));
-}
-
-/*
- * Plain test (test and [ .. ]) specific routines.
- */
-
-/*
- * Test if the current token is a whatever. Accepts the current token if
- * it is. Returns 0 if it is not, non-zero if it is (in the case of
- * TM_UNOP and TM_BINOP, the returned value is a Test_op).
- */
-static Test_op
-ptest_isa(Test_env *te, Test_meta meta)
-{
- /* Order important - indexed by Test_meta values */
- static const char * const tokens[] = {
- "-o", "-a", "!", "(", ")"
- };
- Test_op rv;
-
- if (te->pos.wp >= te->wp_end)
- return (meta == TM_END ? TO_NONNULL : TO_NONOP);
-
- if (meta == TM_UNOP || meta == TM_BINOP)
- rv = test_isop(meta, *te->pos.wp);
- else if (meta == TM_END)
- rv = TO_NONOP;
- else
- rv = !strcmp(*te->pos.wp, tokens[(int)meta]) ?
- TO_NONNULL : TO_NONOP;
-
- /* Accept the token? */
- if (rv != TO_NONOP)
- te->pos.wp++;
-
- return (rv);
-}
-
-static const char *
-ptest_getopnd(Test_env *te, Test_op op, bool do_eval MKSH_A_UNUSED)
-{
- if (te->pos.wp >= te->wp_end)
- return (op == TO_FILTT ? "1" : NULL);
- return (*te->pos.wp++);
-}
-
-static void
-ptest_error(Test_env *te, int ofs, const char *msg)
-{
- const char *op;
-
- te->flags |= TEF_ERROR;
- if ((op = te->pos.wp + ofs >= te->wp_end ? NULL : te->pos.wp[ofs]))
- bi_errorf("%s: %s", op, msg);
- else
- bi_errorf("%s", msg);
-}
-
-#ifndef MKSH_NO_LIMITS
-#define SOFT 0x1
-#define HARD 0x2
-
-struct limits {
- const char *name;
- int resource; /* resource to get/set */
- unsigned int factor; /* multiply by to get rlim_{cur,max} values */
- char option;
-};
-
-static void print_ulimit(const struct limits *, int);
-static int set_ulimit(const struct limits *, const char *, int);
-
-/* Magic to divine the 'm' and 'v' limits */
-
-#ifdef RLIMIT_AS
-#if !defined(RLIMIT_VMEM) || (RLIMIT_VMEM == RLIMIT_AS) || \
- !defined(RLIMIT_RSS) || (RLIMIT_VMEM == RLIMIT_RSS)
-#define ULIMIT_V_IS_AS
-#elif defined(RLIMIT_VMEM)
-#if !defined(RLIMIT_RSS) || (RLIMIT_RSS == RLIMIT_AS)
-#define ULIMIT_V_IS_AS
-#else
-#define ULIMIT_V_IS_VMEM
-#endif
-#endif
-#endif
-
-#ifdef RLIMIT_RSS
-#ifdef ULIMIT_V_IS_VMEM
-#define ULIMIT_M_IS_RSS
-#elif defined(RLIMIT_VMEM) && (RLIMIT_VMEM == RLIMIT_RSS)
-#define ULIMIT_M_IS_VMEM
-#else
-#define ULIMIT_M_IS_RSS
-#endif
-#if defined(ULIMIT_M_IS_RSS) && defined(RLIMIT_AS) && (RLIMIT_RSS == RLIMIT_AS)
-#undef ULIMIT_M_IS_RSS
-#endif
-#endif
-
-#if !defined(RLIMIT_AS) && !defined(ULIMIT_M_IS_VMEM) && defined(RLIMIT_VMEM)
-#define ULIMIT_V_IS_VMEM
-#endif
-
-#if !defined(ULIMIT_V_IS_VMEM) && defined(RLIMIT_VMEM) && \
- (!defined(RLIMIT_RSS) || (defined(RLIMIT_AS) && (RLIMIT_RSS == RLIMIT_AS)))
-#define ULIMIT_M_IS_VMEM
-#endif
-
-#if defined(ULIMIT_M_IS_VMEM) && defined(RLIMIT_AS) && \
- (RLIMIT_VMEM == RLIMIT_AS)
-#undef ULIMIT_M_IS_VMEM
-#endif
-
-
-int
-c_ulimit(const char **wp)
-{
- static const struct limits limits[] = {
- /* do not use options -H, -S or -a or change the order */
-#ifdef RLIMIT_CPU
- { "time(cpu-seconds)", RLIMIT_CPU, 1, 't' },
-#endif
-#ifdef RLIMIT_FSIZE
- { "file(blocks)", RLIMIT_FSIZE, 512, 'f' },
-#endif
-#ifdef RLIMIT_CORE
- { "coredump(blocks)", RLIMIT_CORE, 512, 'c' },
-#endif
-#ifdef RLIMIT_DATA
- { "data(KiB)", RLIMIT_DATA, 1024, 'd' },
-#endif
-#ifdef RLIMIT_STACK
- { "stack(KiB)", RLIMIT_STACK, 1024, 's' },
-#endif
-#ifdef RLIMIT_MEMLOCK
- { "lockedmem(KiB)", RLIMIT_MEMLOCK, 1024, 'l' },
-#endif
-#ifdef RLIMIT_NOFILE
- { "nofiles(descriptors)", RLIMIT_NOFILE, 1, 'n' },
-#endif
-#ifdef RLIMIT_NPROC
- { "processes", RLIMIT_NPROC, 1, 'p' },
-#endif
-#ifdef RLIMIT_SWAP
- { "swap(KiB)", RLIMIT_SWAP, 1024, 'w' },
-#endif
-#ifdef RLIMIT_LOCKS
- { "flocks", RLIMIT_LOCKS, -1, 'L' },
-#endif
-#ifdef RLIMIT_TIME
- { "humantime(seconds)", RLIMIT_TIME, 1, 'T' },
-#endif
-#ifdef RLIMIT_NOVMON
- { "vnodemonitors", RLIMIT_NOVMON, 1, 'V' },
-#endif
-#ifdef RLIMIT_SIGPENDING
- { "sigpending", RLIMIT_SIGPENDING, 1, 'i' },
-#endif
-#ifdef RLIMIT_MSGQUEUE
- { "msgqueue(bytes)", RLIMIT_MSGQUEUE, 1, 'q' },
-#endif
-#ifdef RLIMIT_AIO_MEM
- { "AIOlockedmem(KiB)", RLIMIT_AIO_MEM, 1024, 'M' },
-#endif
-#ifdef RLIMIT_AIO_OPS
- { "AIOoperations", RLIMIT_AIO_OPS, 1, 'O' },
-#endif
-#ifdef RLIMIT_TCACHE
- { "cachedthreads", RLIMIT_TCACHE, 1, 'C' },
-#endif
-#ifdef RLIMIT_SBSIZE
- { "sockbufsiz(KiB)", RLIMIT_SBSIZE, 1024, 'B' },
-#endif
-#ifdef RLIMIT_PTHREAD
- { "threadsperprocess", RLIMIT_PTHREAD, 1, 'P' },
-#endif
-#ifdef RLIMIT_NICE
- { "maxnice", RLIMIT_NICE, 1, 'e' },
-#endif
-#ifdef RLIMIT_RTPRIO
- { "maxrtprio", RLIMIT_RTPRIO, 1, 'r' },
-#endif
-#if defined(ULIMIT_M_IS_RSS)
- { "resident-set(KiB)", RLIMIT_RSS, 1024, 'm' },
-#elif defined(ULIMIT_M_IS_VMEM)
- { "memory(KiB)", RLIMIT_VMEM, 1024, 'm' },
-#endif
-#if defined(ULIMIT_V_IS_VMEM)
- { "virtual-memory(KiB)", RLIMIT_VMEM, 1024, 'v' },
-#elif defined(ULIMIT_V_IS_AS)
- { "address-space(KiB)", RLIMIT_AS, 1024, 'v' },
-#endif
- { NULL, 0, 0, 0 }
- };
- static const char opts[] = "a"
-#ifdef RLIMIT_SBSIZE
- "B"
-#endif
-#ifdef RLIMIT_TCACHE
- "C"
-#endif
-#ifdef RLIMIT_CORE
- "c"
-#endif
-#ifdef RLIMIT_DATA
- "d"
-#endif
-#ifdef RLIMIT_NICE
- "e"
-#endif
-#ifdef RLIMIT_FSIZE
- "f"
-#endif
- "H"
-#ifdef RLIMIT_SIGPENDING
- "i"
-#endif
-#ifdef RLIMIT_LOCKS
- "L"
-#endif
-#ifdef RLIMIT_MEMLOCK
- "l"
-#endif
-#ifdef RLIMIT_AIO_MEM
- "M"
-#endif
-#if defined(ULIMIT_M_IS_RSS) || defined(ULIMIT_M_IS_VMEM)
- "m"
-#endif
-#ifdef RLIMIT_NOFILE
- "n"
-#endif
-#ifdef RLIMIT_AIO_OPS
- "O"
-#endif
-#ifdef RLIMIT_PTHREAD
- "P"
-#endif
-#ifdef RLIMIT_NPROC
- "p"
-#endif
-#ifdef RLIMIT_MSGQUEUE
- "q"
-#endif
-#ifdef RLIMIT_RTPRIO
- "r"
-#endif
- "S"
-#ifdef RLIMIT_STACK
- "s"
-#endif
-#ifdef RLIMIT_TIME
- "T"
-#endif
-#ifdef RLIMIT_CPU
- "t"
-#endif
-#ifdef RLIMIT_NOVMON
- "V"
-#endif
-#if defined(ULIMIT_V_IS_VMEM) || defined(ULIMIT_V_IS_AS)
- "v"
-#endif
-#ifdef RLIMIT_SWAP
- "w"
-#endif
- ;
- int how = SOFT | HARD, optc, what = 'f';
- bool all = false;
- const struct limits *l;
-
- while ((optc = ksh_getopt(wp, &builtin_opt, opts)) != -1)
- switch (optc) {
- case 'H':
- how = HARD;
- break;
- case 'S':
- how = SOFT;
- break;
- case 'a':
- all = true;
- break;
- case '?':
- bi_errorf("usage: ulimit [-%s] [value]", opts);
- return (1);
- default:
- what = optc;
- }
-
- for (l = limits; l->name && l->option != what; l++)
- ;
- if (!l->name) {
- internal_warningf("ulimit: %c", what);
- return (1);
- }
-
- if (wp[builtin_opt.optind]) {
- if (all || wp[builtin_opt.optind + 1]) {
- bi_errorf("too many arguments");
- return (1);
- }
- return (set_ulimit(l, wp[builtin_opt.optind], how));
- }
- if (!all)
- print_ulimit(l, how);
- else for (l = limits; l->name; l++) {
- shprintf("%-20s ", l->name);
- print_ulimit(l, how);
- }
- return (0);
-}
-
-static int
-set_ulimit(const struct limits *l, const char *v, int how)
-{
- rlim_t val = (rlim_t)0;
- struct rlimit limit;
-
- if (strcmp(v, "unlimited") == 0)
- val = (rlim_t)RLIM_INFINITY;
- else {
- mksh_uari_t rval;
-
- if (!evaluate(v, (mksh_ari_t *)&rval, KSH_RETURN_ERROR, false))
- return (1);
- /*
- * Avoid problems caused by typos that evaluate misses due
- * to evaluating unset parameters to 0...
- * If this causes problems, will have to add parameter to
- * evaluate() to control if unset params are 0 or an error.
- */
- if (!rval && !ksh_isdigit(v[0])) {
- bi_errorf("invalid %s limit: %s", l->name, v);
- return (1);
- }
- val = (rlim_t)((rlim_t)rval * l->factor);
- }
-
- if (getrlimit(l->resource, &limit) < 0) {
- /* some can't be read, e.g. Linux RLIMIT_LOCKS */
- limit.rlim_cur = RLIM_INFINITY;
- limit.rlim_max = RLIM_INFINITY;
- }
- if (how & SOFT)
- limit.rlim_cur = val;
- if (how & HARD)
- limit.rlim_max = val;
- if (!setrlimit(l->resource, &limit))
- return (0);
- if (errno == EPERM)
- bi_errorf("%s exceeds allowable %s limit", v, l->name);
- else
- bi_errorf("bad %s limit: %s", l->name, cstrerror(errno));
- return (1);
-}
-
-static void
-print_ulimit(const struct limits *l, int how)
-{
- rlim_t val = (rlim_t)0;
- struct rlimit limit;
-
- if (getrlimit(l->resource, &limit)) {
- shf_puts("unknown\n", shl_stdout);
- return;
- }
- if (how & SOFT)
- val = limit.rlim_cur;
- else if (how & HARD)
- val = limit.rlim_max;
- if (val == (rlim_t)RLIM_INFINITY)
- shf_puts("unlimited\n", shl_stdout);
- else
- shprintf("%lu\n", (unsigned long)(val / l->factor));
-}
-#endif
-
-int
-c_rename(const char **wp)
-{
- int rv = 1;
-
- /* skip argv[0] */
- ++wp;
- if (wp[0] && !strcmp(wp[0], "--"))
- /* skip "--" (options separator) */
- ++wp;
-
- /* check for exactly two arguments */
- if (wp[0] == NULL /* first argument */ ||
- wp[1] == NULL /* second argument */ ||
- wp[2] != NULL /* no further args please */)
- bi_errorf(Tsynerr);
- else if ((rv = rename(wp[0], wp[1])) != 0) {
- rv = errno;
- bi_errorf("%s: %s", "failed", cstrerror(rv));
- }
-
- return (rv);
-}
-
-int
-c_realpath(const char **wp)
-{
- int rv = 1;
- char *buf;
-
- /* skip argv[0] */
- ++wp;
- if (wp[0] && !strcmp(wp[0], "--"))
- /* skip "--" (options separator) */
- ++wp;
-
- /* check for exactly one argument */
- if (wp[0] == NULL || wp[1] != NULL)
- bi_errorf(Tsynerr);
- else if ((buf = do_realpath(wp[0])) == NULL) {
- rv = errno;
- bi_errorf("%s: %s", wp[0], cstrerror(rv));
- if ((unsigned int)rv > 255)
- rv = 255;
- } else {
- shprintf("%s\n", buf);
- afree(buf, ATEMP);
- rv = 0;
- }
-
- return (rv);
-}
-
-int
-c_cat(const char **wp)
-{
- int fd = STDIN_FILENO, rv, eno;
- ssize_t n, w;
- const char *fn = "<stdin>";
- char *buf, *cp;
-#define MKSH_CAT_BUFSIZ 4096
-
- /* parse options: POSIX demands we support "-u" as no-op */
- while ((rv = ksh_getopt(wp, &builtin_opt, "u")) != -1) {
- switch (rv) {
- case 'u':
- /* we already operate unbuffered */
- break;
- default:
- bi_errorf(Tsynerr);
- return (1);
- }
- }
- wp += builtin_opt.optind;
- rv = 0;
-
- if ((buf = malloc_osfunc(MKSH_CAT_BUFSIZ)) == NULL) {
- bi_errorf(Toomem, (size_t)MKSH_CAT_BUFSIZ);
- return (1);
- }
-
- do {
- if (*wp) {
- fn = *wp++;
- if (fn[0] == '-' && fn[1] == '\0')
- fd = STDIN_FILENO;
- else if ((fd = open(fn, O_RDONLY)) < 0) {
- eno = errno;
- bi_errorf("%s: %s", fn, cstrerror(eno));
- rv = 1;
- continue;
- }
- }
- while (/* CONSTCOND */ 1) {
- n = blocking_read(fd, (cp = buf), MKSH_CAT_BUFSIZ);
- eno = errno;
- /* give the user a chance to ^C out */
- intrcheck();
- if (n == -1) {
- if (eno == EINTR) {
- /* interrupted, try again */
- continue;
- }
- /* an error occured during reading */
- bi_errorf("%s: %s", fn, cstrerror(eno));
- rv = 1;
- break;
- } else if (n == 0)
- /* end of file reached */
- break;
- while (n) {
- w = write(STDOUT_FILENO, cp, n);
- if (w == -1) {
- if (errno == EINTR)
- /* interrupted, try again */
- continue;
- /* an error occured during writing */
- eno = errno;
- bi_errorf("%s: %s", "<stdout>",
- cstrerror(eno));
- rv = 1;
- if (fd != STDIN_FILENO)
- close(fd);
- goto out;
- }
- n -= w;
- cp += w;
- }
- }
- if (fd != STDIN_FILENO)
- close(fd);
- } while (*wp);
-
- out:
- free_osfunc(buf);
- return (rv);
-}
-
-#if HAVE_SELECT
-int
-c_sleep(const char **wp)
-{
- struct timeval tv;
- int rv = 1;
-
- /* skip argv[0] */
- ++wp;
- if (wp[0] && !strcmp(wp[0], "--"))
- /* skip "--" (options separator) */
- ++wp;
-
- if (!wp[0] || wp[1])
- bi_errorf(Tsynerr);
- else if (parse_usec(wp[0], &tv))
- bi_errorf("%s: %s '%s'", Tsynerr, cstrerror(errno), wp[0]);
- else {
-#ifndef MKSH_NOPROSPECTOFWORK
- sigset_t omask, bmask;
-
- /* block a number of signals from interrupting us, though */
- (void)sigemptyset(&bmask);
- (void)sigaddset(&bmask, SIGPIPE);
- (void)sigaddset(&bmask, SIGCHLD);
-#ifdef SIGWINCH
- (void)sigaddset(&bmask, SIGWINCH);
-#endif
-#ifdef SIGINFO
- (void)sigaddset(&bmask, SIGINFO);
-#endif
-#ifdef SIGUSR1
- (void)sigaddset(&bmask, SIGUSR1);
-#endif
-#ifdef SIGUSR2
- (void)sigaddset(&bmask, SIGUSR2);
-#endif
- sigprocmask(SIG_BLOCK, &bmask, &omask);
-#endif
- if (select(1, NULL, NULL, NULL, &tv) == 0 || errno == EINTR)
- /*
- * strictly speaking only for SIGALRM, but the
- * execution may be interrupted by other signals
- */
- rv = 0;
- else
- bi_errorf("%s: %s", Tselect, cstrerror(errno));
-#ifndef MKSH_NOPROSPECTOFWORK
- /* this will re-schedule signal delivery */
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
- }
- return (rv);
-}
-#endif
Copied: vendor/MirOS/mksh/R50/funcs.c (from rev 6707, vendor/MirOS/mksh/dist/funcs.c)
===================================================================
--- vendor/MirOS/mksh/R50/funcs.c (rev 0)
+++ vendor/MirOS/mksh/R50/funcs.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,3747 @@
+/* $OpenBSD: c_ksh.c,v 1.34 2013/12/17 16:37:05 deraadt Exp $ */
+/* $OpenBSD: c_sh.c,v 1.44 2013/09/04 15:49:18 millert Exp $ */
+/* $OpenBSD: c_test.c,v 1.18 2009/03/01 20:11:06 otto Exp $ */
+/* $OpenBSD: c_ulimit.c,v 1.19 2013/11/28 10:33:37 sobrado Exp $ */
+
+/*-
+ * Copyright (c) 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+ * 2010, 2011, 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+
+#if HAVE_SELECT
+#if HAVE_SYS_BSDTYPES_H
+#include <sys/bsdtypes.h>
+#endif
+#if HAVE_SYS_SELECT_H
+#include <sys/select.h>
+#endif
+#if HAVE_BSTRING_H
+#include <bstring.h>
+#endif
+#endif
+
+__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.256 2014/06/09 13:25:52 tg Exp $");
+
+#if HAVE_KILLPG
+/*
+ * use killpg if < -1 since -1 does special things
+ * for some non-killpg-endowed kills
+ */
+#define mksh_kill(p,s) ((p) < -1 ? killpg(-(p), (s)) : kill((p), (s)))
+#else
+/* cross fingers and hope kill is killpg-endowed */
+#define mksh_kill kill
+#endif
+
+/* XXX conditions correct? */
+#if !defined(RLIM_INFINITY) && !defined(MKSH_NO_LIMITS)
+#define MKSH_NO_LIMITS 1
+#endif
+
+#ifdef MKSH_NO_LIMITS
+#define c_ulimit c_true
+#endif
+
+#if !defined(MKSH_UNEMPLOYED) && HAVE_GETSID
+static int c_suspend(const char **);
+#endif
+
+/* getn() that prints error */
+static int
+bi_getn(const char *as, int *ai)
+{
+ int rv;
+
+ if (!(rv = getn(as, ai)))
+ bi_errorf("%s: %s", as, "bad number");
+ return (rv);
+}
+
+static int
+c_true(const char **wp MKSH_A_UNUSED)
+{
+ return (0);
+}
+
+static int
+c_false(const char **wp MKSH_A_UNUSED)
+{
+ return (1);
+}
+
+/*
+ * A leading = means assignments before command are kept.
+ * A leading * means a POSIX special builtin.
+ */
+const struct builtin mkshbuiltins[] = {
+ {"*=.", c_dot},
+ {"*=:", c_true},
+ {"[", c_test},
+ /* no =: AT&T manual wrong */
+ {Talias, c_alias},
+ {"*=break", c_brkcont},
+ {Tgbuiltin, c_builtin},
+ {"cat", c_cat},
+ {"cd", c_cd},
+ /* dash compatibility hack */
+ {"chdir", c_cd},
+ {"command", c_command},
+ {"*=continue", c_brkcont},
+ {"echo", c_print},
+ {"*=eval", c_eval},
+ {"*=exec", c_exec},
+ {"*=exit", c_exitreturn},
+ {Tsgexport, c_typeset},
+ {"false", c_false},
+ {"fc", c_fc},
+ {"getopts", c_getopts},
+ {"=global", c_typeset},
+ {"jobs", c_jobs},
+ {"kill", c_kill},
+ {"let", c_let},
+ {"let]", c_let},
+ {"print", c_print},
+ {"pwd", c_pwd},
+ {"read", c_read},
+ {Tsgreadonly, c_typeset},
+ {"realpath", c_realpath},
+ {"rename", c_rename},
+ {"*=return", c_exitreturn},
+ {Tsgset, c_set},
+ {"*=shift", c_shift},
+#if !defined(MKSH_UNEMPLOYED) && HAVE_GETSID
+ {"suspend", c_suspend},
+#endif
+ {"test", c_test},
+ {"*=times", c_times},
+ {"*=trap", c_trap},
+ {"true", c_true},
+ {T_typeset, c_typeset},
+ {"ulimit", c_ulimit},
+ {"umask", c_umask},
+ {Tunalias, c_unalias},
+ {Tsgunset, c_unset},
+ {"=wait", c_wait},
+ {"whence", c_whence},
+#ifndef MKSH_UNEMPLOYED
+ {"bg", c_fgbg},
+ {"fg", c_fgbg},
+#endif
+#ifndef MKSH_NO_CMDLINE_EDITING
+ {"bind", c_bind},
+#endif
+#if HAVE_MKNOD
+ {"mknod", c_mknod},
+#endif
+#ifdef MKSH_PRINTF_BUILTIN
+ {"printf", c_printf},
+#endif
+#if HAVE_SELECT
+ {"sleep", c_sleep},
+#endif
+#ifdef __MirBSD__
+ /* alias to "true" for historical reasons */
+ {"domainname", c_true},
+#endif
+ {NULL, (int (*)(const char **))NULL}
+};
+
+struct kill_info {
+ int num_width;
+ int name_width;
+};
+
+static const struct t_op {
+ char op_text[4];
+ Test_op op_num;
+} u_ops[] = {
+ {"-a", TO_FILAXST },
+ {"-b", TO_FILBDEV },
+ {"-c", TO_FILCDEV },
+ {"-d", TO_FILID },
+ {"-e", TO_FILEXST },
+ {"-f", TO_FILREG },
+ {"-G", TO_FILGID },
+ {"-g", TO_FILSETG },
+ {"-h", TO_FILSYM },
+ {"-H", TO_FILCDF },
+ {"-k", TO_FILSTCK },
+ {"-L", TO_FILSYM },
+ {"-n", TO_STNZE },
+ {"-O", TO_FILUID },
+ {"-o", TO_OPTION },
+ {"-p", TO_FILFIFO },
+ {"-r", TO_FILRD },
+ {"-s", TO_FILGZ },
+ {"-S", TO_FILSOCK },
+ {"-t", TO_FILTT },
+ {"-u", TO_FILSETU },
+ {"-w", TO_FILWR },
+ {"-x", TO_FILEX },
+ {"-z", TO_STZER },
+ {"", TO_NONOP }
+};
+static const struct t_op b_ops[] = {
+ {"=", TO_STEQL },
+ {"==", TO_STEQL },
+ {"!=", TO_STNEQ },
+ {"<", TO_STLT },
+ {">", TO_STGT },
+ {"-eq", TO_INTEQ },
+ {"-ne", TO_INTNE },
+ {"-gt", TO_INTGT },
+ {"-ge", TO_INTGE },
+ {"-lt", TO_INTLT },
+ {"-le", TO_INTLE },
+ {"-ef", TO_FILEQ },
+ {"-nt", TO_FILNT },
+ {"-ot", TO_FILOT },
+ {"", TO_NONOP }
+};
+
+static int test_oexpr(Test_env *, bool);
+static int test_aexpr(Test_env *, bool);
+static int test_nexpr(Test_env *, bool);
+static int test_primary(Test_env *, bool);
+static Test_op ptest_isa(Test_env *, Test_meta);
+static const char *ptest_getopnd(Test_env *, Test_op, bool);
+static void ptest_error(Test_env *, int, const char *);
+static char *kill_fmt_entry(char *, size_t, unsigned int, const void *);
+static void p_time(struct shf *, bool, long, int, int,
+ const char *, const char *);
+
+int
+c_pwd(const char **wp)
+{
+ int optc;
+ bool physical = tobool(Flag(FPHYSICAL));
+ char *p, *allocd = NULL;
+
+ while ((optc = ksh_getopt(wp, &builtin_opt, "LP")) != -1)
+ switch (optc) {
+ case 'L':
+ physical = false;
+ break;
+ case 'P':
+ physical = true;
+ break;
+ case '?':
+ return (1);
+ }
+ wp += builtin_opt.optind;
+
+ if (wp[0]) {
+ bi_errorf("too many arguments");
+ return (1);
+ }
+ p = current_wd[0] ? (physical ? allocd = do_realpath(current_wd) :
+ current_wd) : NULL;
+ /* LINTED use of access */
+ if (p && access(p, R_OK) < 0)
+ p = NULL;
+ if (!p && !(p = allocd = ksh_get_wd())) {
+ bi_errorf("%s: %s", "can't determine current directory",
+ cstrerror(errno));
+ return (1);
+ }
+ shprintf("%s\n", p);
+ afree(allocd, ATEMP);
+ return (0);
+}
+
+static const char *s_ptr;
+static int s_get(void);
+static void s_put(int);
+
+int
+c_print(const char **wp)
+{
+#define PO_NL BIT(0) /* print newline */
+#define PO_EXPAND BIT(1) /* expand backslash sequences */
+#define PO_PMINUSMINUS BIT(2) /* print a -- argument */
+#define PO_HIST BIT(3) /* print to history instead of stdout */
+#define PO_COPROC BIT(4) /* printing to coprocess: block SIGPIPE */
+ int fd = 1, c;
+ int flags = PO_EXPAND | PO_NL;
+ const char *s, *emsg;
+ XString xs;
+ char *xp;
+
+ if (wp[0][0] == 'e') {
+ /* echo builtin */
+ wp++;
+#ifdef MKSH_MIDNIGHTBSD01ASH_COMPAT
+ if (Flag(FSH)) {
+ /*
+ * MidnightBSD /bin/sh needs a BSD echo, that is,
+ * one that supports -e but does not enable it by
+ * default
+ */
+ flags = PO_NL;
+ }
+#endif
+ if (Flag(FPOSIX) ||
+#ifndef MKSH_MIDNIGHTBSD01ASH_COMPAT
+ Flag(FSH) ||
+#endif
+ Flag(FAS_BUILTIN)) {
+ /* Debian Policy 10.4 compliant "echo" builtin */
+ if (*wp && !strcmp(*wp, "-n")) {
+ /* we recognise "-n" only as the first arg */
+ flags = 0;
+ wp++;
+ } else
+ /* otherwise, we print everything as-is */
+ flags = PO_NL;
+ } else {
+ int nflags = flags;
+
+ /**
+ * a compromise between sysV and BSD echo commands:
+ * escape sequences are enabled by default, and -n,
+ * -e and -E are recognised if they appear in argu-
+ * ments with no illegal options (ie, echo -nq will
+ * print -nq).
+ * Different from sysV echo since options are reco-
+ * gnised, different from BSD echo since escape se-
+ * quences are enabled by default.
+ */
+
+ while ((s = *wp) && *s == '-' && s[1]) {
+ while (*++s)
+ if (*s == 'n')
+ nflags &= ~PO_NL;
+ else if (*s == 'e')
+ nflags |= PO_EXPAND;
+ else if (*s == 'E')
+ nflags &= ~PO_EXPAND;
+ else
+ /*
+ * bad option: don't use
+ * nflags, print argument
+ */
+ break;
+
+ if (*s)
+ break;
+ wp++;
+ flags = nflags;
+ }
+ }
+ } else {
+ int optc;
+ const char *opts = "Rnprsu,";
+
+ while ((optc = ksh_getopt(wp, &builtin_opt, opts)) != -1)
+ switch (optc) {
+ case 'R':
+ /* fake BSD echo command */
+ flags |= PO_PMINUSMINUS;
+ flags &= ~PO_EXPAND;
+ opts = "ne";
+ break;
+ case 'e':
+ flags |= PO_EXPAND;
+ break;
+ case 'n':
+ flags &= ~PO_NL;
+ break;
+ case 'p':
+ if ((fd = coproc_getfd(W_OK, &emsg)) < 0) {
+ bi_errorf("%s: %s", "-p", emsg);
+ return (1);
+ }
+ break;
+ case 'r':
+ flags &= ~PO_EXPAND;
+ break;
+ case 's':
+ flags |= PO_HIST;
+ break;
+ case 'u':
+ if (!*(s = builtin_opt.optarg))
+ fd = 0;
+ else if ((fd = check_fd(s, W_OK, &emsg)) < 0) {
+ bi_errorf("%s: %s: %s", "-u", s, emsg);
+ return (1);
+ }
+ break;
+ case '?':
+ return (1);
+ }
+
+ if (!(builtin_opt.info & GI_MINUSMINUS)) {
+ /* treat a lone - like -- */
+ if (wp[builtin_opt.optind] &&
+ ksh_isdash(wp[builtin_opt.optind]))
+ builtin_opt.optind++;
+ } else if (flags & PO_PMINUSMINUS)
+ builtin_opt.optind--;
+ wp += builtin_opt.optind;
+ }
+
+ Xinit(xs, xp, 128, ATEMP);
+
+ while (*wp != NULL) {
+ s = *wp;
+ while ((c = *s++) != '\0') {
+ Xcheck(xs, xp);
+ if ((flags & PO_EXPAND) && c == '\\') {
+ s_ptr = s;
+ c = unbksl(false, s_get, s_put);
+ s = s_ptr;
+ if (c == -1) {
+ /* rejected by generic function */
+ switch ((c = *s++)) {
+ case 'c':
+ flags &= ~PO_NL;
+ /* AT&T brain damage */
+ continue;
+ case '\0':
+ s--;
+ c = '\\';
+ break;
+ default:
+ Xput(xs, xp, '\\');
+ }
+ } else if ((unsigned int)c > 0xFF) {
+ /* generic function returned Unicode */
+ char ts[4];
+
+ ts[utf_wctomb(ts, c - 0x100)] = 0;
+ for (c = 0; ts[c]; ++c)
+ Xput(xs, xp, ts[c]);
+ continue;
+ }
+ }
+ Xput(xs, xp, c);
+ }
+ if (*++wp != NULL)
+ Xput(xs, xp, ' ');
+ }
+ if (flags & PO_NL)
+ Xput(xs, xp, '\n');
+
+ if (flags & PO_HIST) {
+ Xput(xs, xp, '\0');
+ histsave(&source->line, Xstring(xs, xp), true, false);
+ Xfree(xs, xp);
+ } else {
+ int len = Xlength(xs, xp);
+ int opipe = 0;
+
+ /*
+ * Ensure we aren't killed by a SIGPIPE while writing to
+ * a coprocess. AT&T ksh doesn't seem to do this (seems
+ * to just check that the co-process is alive which is
+ * not enough).
+ */
+ if (coproc.write >= 0 && coproc.write == fd) {
+ flags |= PO_COPROC;
+ opipe = block_pipe();
+ }
+ for (s = Xstring(xs, xp); len > 0; ) {
+ if ((c = write(fd, s, len)) < 0) {
+ if (flags & PO_COPROC)
+ restore_pipe(opipe);
+ if (errno == EINTR) {
+ /* allow user to ^C out */
+ intrcheck();
+ if (flags & PO_COPROC)
+ opipe = block_pipe();
+ continue;
+ }
+ return (1);
+ }
+ s += c;
+ len -= c;
+ }
+ if (flags & PO_COPROC)
+ restore_pipe(opipe);
+ }
+
+ return (0);
+}
+
+static int
+s_get(void)
+{
+ return (*s_ptr++);
+}
+
+static void
+s_put(int c MKSH_A_UNUSED)
+{
+ --s_ptr;
+}
+
+int
+c_whence(const char **wp)
+{
+ struct tbl *tp;
+ const char *id;
+ bool pflag = false, vflag = false, Vflag = false;
+ int rv = 0, optc, fcflags;
+ bool iam_whence = wp[0][0] == 'w';
+ const char *opts = iam_whence ? "pv" : "pvV";
+
+ while ((optc = ksh_getopt(wp, &builtin_opt, opts)) != -1)
+ switch (optc) {
+ case 'p':
+ pflag = true;
+ break;
+ case 'v':
+ vflag = true;
+ break;
+ case 'V':
+ Vflag = true;
+ break;
+ case '?':
+ return (1);
+ }
+ wp += builtin_opt.optind;
+
+ fcflags = FC_BI | FC_PATH | FC_FUNC;
+ if (!iam_whence) {
+ /* Note that -p on its own is deal with in comexec() */
+ if (pflag)
+ fcflags |= FC_DEFPATH;
+ /*
+ * Convert command options to whence options - note that
+ * command -pV uses a different path search than whence -v
+ * or whence -pv. This should be considered a feature.
+ */
+ vflag = Vflag;
+ }
+ if (pflag)
+ fcflags &= ~(FC_BI | FC_FUNC);
+
+ while ((vflag || rv == 0) && (id = *wp++) != NULL) {
+ uint32_t h = 0;
+
+ tp = NULL;
+ if ((iam_whence || vflag) && !pflag)
+ tp = ktsearch(&keywords, id, h = hash(id));
+ if (!tp && !pflag) {
+ tp = ktsearch(&aliases, id, h ? h : hash(id));
+ if (tp && !(tp->flag & ISSET))
+ tp = NULL;
+ }
+ if (!tp)
+ tp = findcom(id, fcflags);
+ if (vflag || (tp->type != CALIAS && tp->type != CEXEC &&
+ tp->type != CTALIAS))
+ shf_puts(id, shl_stdout);
+ if (vflag)
+ switch (tp->type) {
+ case CKEYWD:
+ case CALIAS:
+ case CFUNC:
+ case CSHELL:
+ shf_puts(" is a", shl_stdout);
+ break;
+ }
+
+ switch (tp->type) {
+ case CKEYWD:
+ if (vflag)
+ shf_puts(" reserved word", shl_stdout);
+ break;
+ case CALIAS:
+ if (vflag)
+ shprintf("n %s%s for ",
+ (tp->flag & EXPORT) ? "exported " : null,
+ Talias);
+ if (!iam_whence && !vflag)
+ shprintf("%s %s=", Talias, id);
+ print_value_quoted(shl_stdout, tp->val.s);
+ break;
+ case CFUNC:
+ if (vflag) {
+ if (tp->flag & EXPORT)
+ shf_puts("n exported", shl_stdout);
+ if (tp->flag & TRACE)
+ shf_puts(" traced", shl_stdout);
+ if (!(tp->flag & ISSET)) {
+ shf_puts(" undefined", shl_stdout);
+ if (tp->u.fpath)
+ shprintf(" (autoload from %s)",
+ tp->u.fpath);
+ }
+ shf_puts(T_function, shl_stdout);
+ }
+ break;
+ case CSHELL:
+ if (vflag)
+ shprintf("%s %s %s",
+ (tp->flag & SPEC_BI) ? " special" : null,
+ "shell", Tbuiltin);
+ break;
+ case CTALIAS:
+ case CEXEC:
+ if (tp->flag & ISSET) {
+ if (vflag) {
+ shf_puts(" is ", shl_stdout);
+ if (tp->type == CTALIAS)
+ shprintf("a tracked %s%s for ",
+ (tp->flag & EXPORT) ?
+ "exported " : null,
+ Talias);
+ }
+ shf_puts(tp->val.s, shl_stdout);
+ } else {
+ if (vflag)
+ shprintf(" %s\n", "not found");
+ rv = 1;
+ }
+ break;
+ default:
+ shprintf("%s is *GOK*", id);
+ break;
+ }
+ if (vflag || !rv)
+ shf_putc('\n', shl_stdout);
+ }
+ return (rv);
+}
+
+/* Deal with command -vV - command -p dealt with in comexec() */
+int
+c_command(const char **wp)
+{
+ /*
+ * Let c_whence do the work. Note that c_command() must be
+ * a distinct function from c_whence() (tested in comexec()).
+ */
+ return (c_whence(wp));
+}
+
+/* typeset, global, export, and readonly */
+static void c_typeset_vardump(struct tbl *, uint32_t, int, bool, bool);
+static void c_typeset_vardump_recursive(struct block *, uint32_t, int, bool,
+ bool);
+int
+c_typeset(const char **wp)
+{
+ struct tbl *vp, **p;
+ uint32_t fset = 0, fclr = 0, flag;
+ int thing = 0, field = 0, base = 0, i;
+ struct block *l;
+ const char *opts;
+ const char *fieldstr = NULL, *basestr = NULL;
+ bool localv = false, func = false, pflag = false, istset = true;
+ enum namerefflag new_refflag = SRF_NOP;
+
+ switch (**wp) {
+
+ /* export */
+ case 'e':
+ fset |= EXPORT;
+ istset = false;
+ break;
+
+ /* readonly */
+ case 'r':
+ fset |= RDONLY;
+ istset = false;
+ break;
+
+ /* set */
+ case 's':
+ /* called with 'typeset -' */
+ break;
+
+ /* typeset */
+ case 't':
+ localv = true;
+ break;
+ }
+
+ /* see comment below regarding possible opions */
+ opts = istset ? "L#R#UZ#afi#lnprtux" : "p";
+
+ builtin_opt.flags |= GF_PLUSOPT;
+ /*
+ * AT&T ksh seems to have 0-9 as options which are multiplied
+ * to get a number that is used with -L, -R, -Z or -i (eg, -1R2
+ * sets right justify in a field of 12). This allows options
+ * to be grouped in an order (eg, -Lu12), but disallows -i8 -L3 and
+ * does not allow the number to be specified as a separate argument
+ * Here, the number must follow the RLZi option, but is optional
+ * (see the # kludge in ksh_getopt()).
+ */
+ while ((i = ksh_getopt(wp, &builtin_opt, opts)) != -1) {
+ flag = 0;
+ switch (i) {
+ case 'L':
+ flag = LJUST;
+ fieldstr = builtin_opt.optarg;
+ break;
+ case 'R':
+ flag = RJUST;
+ fieldstr = builtin_opt.optarg;
+ break;
+ case 'U':
+ /*
+ * AT&T ksh uses u, but this conflicts with
+ * upper/lower case. If this option is changed,
+ * need to change the -U below as well
+ */
+ flag = INT_U;
+ break;
+ case 'Z':
+ flag = ZEROFIL;
+ fieldstr = builtin_opt.optarg;
+ break;
+ case 'a':
+ /*
+ * this is supposed to set (-a) or unset (+a) the
+ * indexed array attribute; it does nothing on an
+ * existing regular string or indexed array though
+ */
+ break;
+ case 'f':
+ func = true;
+ break;
+ case 'i':
+ flag = INTEGER;
+ basestr = builtin_opt.optarg;
+ break;
+ case 'l':
+ flag = LCASEV;
+ break;
+ case 'n':
+ new_refflag = (builtin_opt.info & GI_PLUS) ?
+ SRF_DISABLE : SRF_ENABLE;
+ break;
+ /* export, readonly: POSIX -p flag */
+ case 'p':
+ /* typeset: show values as well */
+ pflag = true;
+ if (istset)
+ continue;
+ break;
+ case 'r':
+ flag = RDONLY;
+ break;
+ case 't':
+ flag = TRACE;
+ break;
+ case 'u':
+ /* upper case / autoload */
+ flag = UCASEV_AL;
+ break;
+ case 'x':
+ flag = EXPORT;
+ break;
+ case '?':
+ return (1);
+ }
+ if (builtin_opt.info & GI_PLUS) {
+ fclr |= flag;
+ fset &= ~flag;
+ thing = '+';
+ } else {
+ fset |= flag;
+ fclr &= ~flag;
+ thing = '-';
+ }
+ }
+
+ if (fieldstr && !bi_getn(fieldstr, &field))
+ return (1);
+ if (basestr && (!bi_getn(basestr, &base) || base < 1 || base > 36)) {
+ bi_errorf("%s: %s", "bad integer base", basestr);
+ return (1);
+ }
+
+ if (!(builtin_opt.info & GI_MINUSMINUS) && wp[builtin_opt.optind] &&
+ (wp[builtin_opt.optind][0] == '-' ||
+ wp[builtin_opt.optind][0] == '+') &&
+ wp[builtin_opt.optind][1] == '\0') {
+ thing = wp[builtin_opt.optind][0];
+ builtin_opt.optind++;
+ }
+
+ if (func && (((fset|fclr) & ~(TRACE|UCASEV_AL|EXPORT)) ||
+ new_refflag != SRF_NOP)) {
+ bi_errorf("only -t, -u and -x options may be used with -f");
+ return (1);
+ }
+ if (wp[builtin_opt.optind]) {
+ /*
+ * Take care of exclusions.
+ * At this point, flags in fset are cleared in fclr and vice
+ * versa. This property should be preserved.
+ */
+ if (fset & LCASEV)
+ /* LCASEV has priority over UCASEV_AL */
+ fset &= ~UCASEV_AL;
+ if (fset & LJUST)
+ /* LJUST has priority over RJUST */
+ fset &= ~RJUST;
+ if ((fset & (ZEROFIL|LJUST)) == ZEROFIL) {
+ /* -Z implies -ZR */
+ fset |= RJUST;
+ fclr &= ~RJUST;
+ }
+ /*
+ * Setting these attributes clears the others, unless they
+ * are also set in this command
+ */
+ if ((fset & (LJUST | RJUST | ZEROFIL | UCASEV_AL | LCASEV |
+ INTEGER | INT_U | INT_L)) || new_refflag != SRF_NOP)
+ fclr |= ~fset & (LJUST | RJUST | ZEROFIL | UCASEV_AL |
+ LCASEV | INTEGER | INT_U | INT_L);
+ }
+ if (new_refflag != SRF_NOP) {
+ fclr &= ~(ARRAY | ASSOC);
+ fset &= ~(ARRAY | ASSOC);
+ fclr |= EXPORT;
+ fset |= ASSOC;
+ if (new_refflag == SRF_DISABLE)
+ fclr |= ASSOC;
+ }
+
+ /* set variables and attributes */
+ if (wp[builtin_opt.optind] &&
+ /* not "typeset -p varname" */
+ !(!func && pflag && !(fset | fclr))) {
+ int rv = 0;
+ struct tbl *f;
+
+ if (localv && !func)
+ fset |= LOCAL;
+ for (i = builtin_opt.optind; wp[i]; i++) {
+ if (func) {
+ f = findfunc(wp[i], hash(wp[i]),
+ tobool(fset & UCASEV_AL));
+ if (!f) {
+ /* AT&T ksh does ++rv: bogus */
+ rv = 1;
+ continue;
+ }
+ if (fset | fclr) {
+ f->flag |= fset;
+ f->flag &= ~fclr;
+ } else {
+ fpFUNCTf(shl_stdout, 0,
+ tobool(f->flag & FKSH),
+ wp[i], f->val.t);
+ shf_putc('\n', shl_stdout);
+ }
+ } else if (!typeset(wp[i], fset, fclr, field, base)) {
+ bi_errorf("%s: %s", wp[i], "is not an identifier");
+ return (1);
+ }
+ }
+ return (rv);
+ }
+
+ /* list variables and attributes */
+
+ /* no difference at this point.. */
+ flag = fset | fclr;
+ if (func) {
+ for (l = e->loc; l; l = l->next) {
+ for (p = ktsort(&l->funs); (vp = *p++); ) {
+ if (flag && (vp->flag & flag) == 0)
+ continue;
+ if (thing == '-')
+ fpFUNCTf(shl_stdout, 0,
+ tobool(vp->flag & FKSH),
+ vp->name, vp->val.t);
+ else
+ shf_puts(vp->name, shl_stdout);
+ shf_putc('\n', shl_stdout);
+ }
+ }
+ } else if (wp[builtin_opt.optind]) {
+ for (i = builtin_opt.optind; wp[i]; i++) {
+ varsearch(e->loc, &vp, wp[i], hash(wp[i]));
+ c_typeset_vardump(vp, flag, thing, pflag, istset);
+ }
+ } else
+ c_typeset_vardump_recursive(e->loc, flag, thing, pflag, istset);
+ return (0);
+}
+
+static void
+c_typeset_vardump_recursive(struct block *l, uint32_t flag, int thing,
+ bool pflag, bool istset)
+{
+ struct tbl **blockvars, *vp;
+
+ if (l->next)
+ c_typeset_vardump_recursive(l->next, flag, thing, pflag, istset);
+ blockvars = ktsort(&l->vars);
+ while ((vp = *blockvars++))
+ c_typeset_vardump(vp, flag, thing, pflag, istset);
+ /*XXX doesn’t this leak? */
+}
+
+static void
+c_typeset_vardump(struct tbl *vp, uint32_t flag, int thing, bool pflag,
+ bool istset)
+{
+ struct tbl *tvp;
+ int any_set = 0;
+ char *s;
+
+ if (!vp)
+ return;
+
+ /*
+ * See if the parameter is set (for arrays, if any
+ * element is set).
+ */
+ for (tvp = vp; tvp; tvp = tvp->u.array)
+ if (tvp->flag & ISSET) {
+ any_set = 1;
+ break;
+ }
+
+ /*
+ * Check attributes - note that all array elements
+ * have (should have?) the same attributes, so checking
+ * the first is sufficient.
+ *
+ * Report an unset param only if the user has
+ * explicitly given it some attribute (like export);
+ * otherwise, after "echo $FOO", we would report FOO...
+ */
+ if (!any_set && !(vp->flag & USERATTRIB))
+ return;
+ if (flag && (vp->flag & flag) == 0)
+ return;
+ if (!(vp->flag & ARRAY))
+ /* optimise later conditionals */
+ any_set = 0;
+ do {
+ /*
+ * Ignore array elements that aren't set unless there
+ * are no set elements, in which case the first is
+ * reported on
+ */
+ if (any_set && !(vp->flag & ISSET))
+ continue;
+ /* no arguments */
+ if (!thing && !flag) {
+ if (any_set == 1) {
+ shprintf("%s %s %s\n", Tset, "-A", vp->name);
+ any_set = 2;
+ }
+ /*
+ * AT&T ksh prints things like export, integer,
+ * leftadj, zerofill, etc., but POSIX says must
+ * be suitable for re-entry...
+ */
+ shprintf("%s %s", Ttypeset, "");
+ if (((vp->flag & (ARRAY | ASSOC)) == ASSOC))
+ shprintf("%s ", "-n");
+ if ((vp->flag & INTEGER))
+ shprintf("%s ", "-i");
+ if ((vp->flag & EXPORT))
+ shprintf("%s ", "-x");
+ if ((vp->flag & RDONLY))
+ shprintf("%s ", "-r");
+ if ((vp->flag & TRACE))
+ shprintf("%s ", "-t");
+ if ((vp->flag & LJUST))
+ shprintf("-L%d ", vp->u2.field);
+ if ((vp->flag & RJUST))
+ shprintf("-R%d ", vp->u2.field);
+ if ((vp->flag & ZEROFIL))
+ shprintf("%s ", "-Z");
+ if ((vp->flag & LCASEV))
+ shprintf("%s ", "-l");
+ if ((vp->flag & UCASEV_AL))
+ shprintf("%s ", "-u");
+ if ((vp->flag & INT_U))
+ shprintf("%s ", "-U");
+ } else if (pflag) {
+ shprintf("%s %s", istset ? Ttypeset :
+ (flag & EXPORT) ? Texport : Treadonly, "");
+ }
+ if (any_set)
+ shprintf("%s[%lu]", vp->name, arrayindex(vp));
+ else
+ shf_puts(vp->name, shl_stdout);
+ if ((!thing && !flag && pflag) ||
+ (thing == '-' && (vp->flag & ISSET))) {
+ s = str_val(vp);
+ shf_putc('=', shl_stdout);
+ /* AT&T ksh can't have justified integers... */
+ if ((vp->flag & (INTEGER | LJUST | RJUST)) == INTEGER)
+ shf_puts(s, shl_stdout);
+ else
+ print_value_quoted(shl_stdout, s);
+ }
+ shf_putc('\n', shl_stdout);
+
+ /*
+ * Only report first 'element' of an array with
+ * no set elements.
+ */
+ if (!any_set)
+ return;
+ } while ((vp = vp->u.array));
+}
+
+int
+c_alias(const char **wp)
+{
+ struct table *t = &aliases;
+ int rv = 0, prefix = 0;
+ bool rflag = false, tflag, Uflag = false, pflag = false;
+ uint32_t xflag = 0;
+ int optc;
+
+ builtin_opt.flags |= GF_PLUSOPT;
+ while ((optc = ksh_getopt(wp, &builtin_opt, "dprtUx")) != -1) {
+ prefix = builtin_opt.info & GI_PLUS ? '+' : '-';
+ switch (optc) {
+ case 'd':
+#ifdef MKSH_NOPWNAM
+ t = NULL; /* fix "alias -dt" */
+#else
+ t = &homedirs;
+#endif
+ break;
+ case 'p':
+ pflag = true;
+ break;
+ case 'r':
+ rflag = true;
+ break;
+ case 't':
+ t = &taliases;
+ break;
+ case 'U':
+ /*
+ * kludge for tracked alias initialization
+ * (don't do a path search, just make an entry)
+ */
+ Uflag = true;
+ break;
+ case 'x':
+ xflag = EXPORT;
+ break;
+ case '?':
+ return (1);
+ }
+ }
+#ifdef MKSH_NOPWNAM
+ if (t == NULL)
+ return (0);
+#endif
+ wp += builtin_opt.optind;
+
+ if (!(builtin_opt.info & GI_MINUSMINUS) && *wp &&
+ (wp[0][0] == '-' || wp[0][0] == '+') && wp[0][1] == '\0') {
+ prefix = wp[0][0];
+ wp++;
+ }
+
+ tflag = t == &taliases;
+
+ /* "hash -r" means reset all the tracked aliases.. */
+ if (rflag) {
+ static const char *args[] = {
+ Tunalias, "-ta", NULL
+ };
+
+ if (!tflag || *wp) {
+ shprintf("%s: -r flag can only be used with -t"
+ " and without arguments\n", Talias);
+ return (1);
+ }
+ ksh_getopt_reset(&builtin_opt, GF_ERROR);
+ return (c_unalias(args));
+ }
+
+ if (*wp == NULL) {
+ struct tbl *ap, **p;
+
+ for (p = ktsort(t); (ap = *p++) != NULL; )
+ if ((ap->flag & (ISSET|xflag)) == (ISSET|xflag)) {
+ if (pflag)
+ shprintf("%s ", Talias);
+ shf_puts(ap->name, shl_stdout);
+ if (prefix != '+') {
+ shf_putc('=', shl_stdout);
+ print_value_quoted(shl_stdout, ap->val.s);
+ }
+ shf_putc('\n', shl_stdout);
+ }
+ }
+
+ for (; *wp != NULL; wp++) {
+ const char *alias = *wp, *val, *newval;
+ char *xalias = NULL;
+ struct tbl *ap;
+ uint32_t h;
+
+ if ((val = cstrchr(alias, '='))) {
+ strndupx(xalias, alias, val++ - alias, ATEMP);
+ alias = xalias;
+ }
+ h = hash(alias);
+ if (val == NULL && !tflag && !xflag) {
+ ap = ktsearch(t, alias, h);
+ if (ap != NULL && (ap->flag&ISSET)) {
+ if (pflag)
+ shprintf("%s ", Talias);
+ shf_puts(ap->name, shl_stdout);
+ if (prefix != '+') {
+ shf_putc('=', shl_stdout);
+ print_value_quoted(shl_stdout, ap->val.s);
+ }
+ shf_putc('\n', shl_stdout);
+ } else {
+ shprintf("%s %s %s\n", alias, Talias,
+ "not found");
+ rv = 1;
+ }
+ continue;
+ }
+ ap = ktenter(t, alias, h);
+ ap->type = tflag ? CTALIAS : CALIAS;
+ /* Are we setting the value or just some flags? */
+ if ((val && !tflag) || (!val && tflag && !Uflag)) {
+ if (ap->flag&ALLOC) {
+ ap->flag &= ~(ALLOC|ISSET);
+ afree(ap->val.s, APERM);
+ }
+ /* ignore values for -t (AT&T ksh does this) */
+ newval = tflag ?
+ search_path(alias, path, X_OK, NULL) :
+ val;
+ if (newval) {
+ strdupx(ap->val.s, newval, APERM);
+ ap->flag |= ALLOC|ISSET;
+ } else
+ ap->flag &= ~ISSET;
+ }
+ ap->flag |= DEFINED;
+ if (prefix == '+')
+ ap->flag &= ~xflag;
+ else
+ ap->flag |= xflag;
+ afree(xalias, ATEMP);
+ }
+
+ return (rv);
+}
+
+int
+c_unalias(const char **wp)
+{
+ struct table *t = &aliases;
+ struct tbl *ap;
+ int optc, rv = 0;
+ bool all = false;
+
+ while ((optc = ksh_getopt(wp, &builtin_opt, "adt")) != -1)
+ switch (optc) {
+ case 'a':
+ all = true;
+ break;
+ case 'd':
+#ifdef MKSH_NOPWNAM
+ /* fix "unalias -dt" */
+ t = NULL;
+#else
+ t = &homedirs;
+#endif
+ break;
+ case 't':
+ t = &taliases;
+ break;
+ case '?':
+ return (1);
+ }
+#ifdef MKSH_NOPWNAM
+ if (t == NULL)
+ return (0);
+#endif
+ wp += builtin_opt.optind;
+
+ for (; *wp != NULL; wp++) {
+ ap = ktsearch(t, *wp, hash(*wp));
+ if (ap == NULL) {
+ /* POSIX */
+ rv = 1;
+ continue;
+ }
+ if (ap->flag&ALLOC) {
+ ap->flag &= ~(ALLOC|ISSET);
+ afree(ap->val.s, APERM);
+ }
+ ap->flag &= ~(DEFINED|ISSET|EXPORT);
+ }
+
+ if (all) {
+ struct tstate ts;
+
+ for (ktwalk(&ts, t); (ap = ktnext(&ts)); ) {
+ if (ap->flag&ALLOC) {
+ ap->flag &= ~(ALLOC|ISSET);
+ afree(ap->val.s, APERM);
+ }
+ ap->flag &= ~(DEFINED|ISSET|EXPORT);
+ }
+ }
+
+ return (rv);
+}
+
+int
+c_let(const char **wp)
+{
+ int rv = 1;
+ mksh_ari_t val;
+
+ if (wp[1] == NULL)
+ /* AT&T ksh does this */
+ bi_errorf("no arguments");
+ else
+ for (wp++; *wp; wp++)
+ if (!evaluate(*wp, &val, KSH_RETURN_ERROR, true)) {
+ /* distinguish error from zero result */
+ rv = 2;
+ break;
+ } else
+ rv = val == 0;
+ return (rv);
+}
+
+int
+c_jobs(const char **wp)
+{
+ int optc, flag = 0, nflag = 0, rv = 0;
+
+ while ((optc = ksh_getopt(wp, &builtin_opt, "lpnz")) != -1)
+ switch (optc) {
+ case 'l':
+ flag = 1;
+ break;
+ case 'p':
+ flag = 2;
+ break;
+ case 'n':
+ nflag = 1;
+ break;
+ case 'z':
+ /* debugging: print zombies */
+ nflag = -1;
+ break;
+ case '?':
+ return (1);
+ }
+ wp += builtin_opt.optind;
+ if (!*wp) {
+ if (j_jobs(NULL, flag, nflag))
+ rv = 1;
+ } else {
+ for (; *wp; wp++)
+ if (j_jobs(*wp, flag, nflag))
+ rv = 1;
+ }
+ return (rv);
+}
+
+#ifndef MKSH_UNEMPLOYED
+int
+c_fgbg(const char **wp)
+{
+ bool bg = strcmp(*wp, "bg") == 0;
+ int rv = 0;
+
+ if (!Flag(FMONITOR)) {
+ bi_errorf("job control not enabled");
+ return (1);
+ }
+ if (ksh_getopt(wp, &builtin_opt, null) == '?')
+ return (1);
+ wp += builtin_opt.optind;
+ if (*wp)
+ for (; *wp; wp++)
+ rv = j_resume(*wp, bg);
+ else
+ rv = j_resume("%%", bg);
+ return (bg ? 0 : rv);
+}
+#endif
+
+/* format a single kill item */
+static char *
+kill_fmt_entry(char *buf, size_t buflen, unsigned int i, const void *arg)
+{
+ const struct kill_info *ki = (const struct kill_info *)arg;
+
+ i++;
+ shf_snprintf(buf, buflen, "%*u %*s %s",
+ ki->num_width, i,
+ ki->name_width, sigtraps[i].name,
+ sigtraps[i].mess);
+ return (buf);
+}
+
+int
+c_kill(const char **wp)
+{
+ Trap *t = NULL;
+ const char *p;
+ bool lflag = false;
+ int i, n, rv, sig;
+
+ /* assume old style options if -digits or -UPPERCASE */
+ if ((p = wp[1]) && *p == '-' && (ksh_isdigit(p[1]) ||
+ ksh_isupper(p[1]))) {
+ if (!(t = gettrap(p + 1, false))) {
+ bi_errorf("bad signal '%s'", p + 1);
+ return (1);
+ }
+ i = (wp[2] && strcmp(wp[2], "--") == 0) ? 3 : 2;
+ } else {
+ int optc;
+
+ while ((optc = ksh_getopt(wp, &builtin_opt, "ls:")) != -1)
+ switch (optc) {
+ case 'l':
+ lflag = true;
+ break;
+ case 's':
+ if (!(t = gettrap(builtin_opt.optarg, true))) {
+ bi_errorf("bad signal '%s'",
+ builtin_opt.optarg);
+ return (1);
+ }
+ break;
+ case '?':
+ return (1);
+ }
+ i = builtin_opt.optind;
+ }
+ if ((lflag && t) || (!wp[i] && !lflag)) {
+#ifndef MKSH_SMALL
+ shf_puts("usage:\tkill [-s signame | -signum | -signame]"
+ " { job | pid | pgrp } ...\n"
+ "\tkill -l [exit_status ...]\n", shl_out);
+#endif
+ bi_errorfz();
+ return (1);
+ }
+
+ if (lflag) {
+ if (wp[i]) {
+ for (; wp[i]; i++) {
+ if (!bi_getn(wp[i], &n))
+ return (1);
+#if (NSIG < 128)
+ if (n > 128 && n < 128 + NSIG)
+ n -= 128;
+#endif
+ if (n > 0 && n < NSIG)
+ shprintf("%s\n", sigtraps[n].name);
+ else
+ shprintf("%d\n", n);
+ }
+ } else {
+ ssize_t w, mess_cols, mess_octs;
+ int j;
+ struct kill_info ki;
+
+ for (j = NSIG, ki.num_width = 1; j >= 10; j /= 10)
+ ki.num_width++;
+ ki.name_width = mess_cols = mess_octs = 0;
+ for (j = 0; j < NSIG; j++) {
+ w = strlen(sigtraps[j].name);
+ if (w > ki.name_width)
+ ki.name_width = w;
+ w = strlen(sigtraps[j].mess);
+ if (w > mess_octs)
+ mess_octs = w;
+ w = utf_mbswidth(sigtraps[j].mess);
+ if (w > mess_cols)
+ mess_cols = w;
+ }
+
+ print_columns(shl_stdout, (unsigned int)(NSIG - 1),
+ kill_fmt_entry, (void *)&ki,
+ ki.num_width + 1 + ki.name_width + 1 + mess_octs,
+ ki.num_width + 1 + ki.name_width + 1 + mess_cols,
+ true);
+ }
+ return (0);
+ }
+ rv = 0;
+ sig = t ? t->signal : SIGTERM;
+ for (; (p = wp[i]); i++) {
+ if (*p == '%') {
+ if (j_kill(p, sig))
+ rv = 1;
+ } else if (!getn(p, &n)) {
+ bi_errorf("%s: %s", p,
+ "arguments must be jobs or process IDs");
+ rv = 1;
+ } else {
+ if (mksh_kill(n, sig) < 0) {
+ bi_errorf("%s: %s", p, cstrerror(errno));
+ rv = 1;
+ }
+ }
+ }
+ return (rv);
+}
+
+void
+getopts_reset(int val)
+{
+ if (val >= 1) {
+ ksh_getopt_reset(&user_opt, GF_NONAME | GF_PLUSOPT);
+ user_opt.optind = user_opt.uoptind = val;
+ }
+}
+
+int
+c_getopts(const char **wp)
+{
+ int argc, optc, rv;
+ const char *opts, *var;
+ char buf[3];
+ struct tbl *vq, *voptarg;
+
+ if (ksh_getopt(wp, &builtin_opt, null) == '?')
+ return (1);
+ wp += builtin_opt.optind;
+
+ opts = *wp++;
+ if (!opts) {
+ bi_errorf("missing %s argument", "options");
+ return (1);
+ }
+
+ var = *wp++;
+ if (!var) {
+ bi_errorf("missing %s argument", "name");
+ return (1);
+ }
+ if (!*var || *skip_varname(var, true)) {
+ bi_errorf("%s: %s", var, "is not an identifier");
+ return (1);
+ }
+
+ if (e->loc->next == NULL) {
+ internal_warningf("%s: %s", "c_getopts", "no argv");
+ return (1);
+ }
+ /* Which arguments are we parsing... */
+ if (*wp == NULL)
+ wp = e->loc->next->argv;
+ else
+ *--wp = e->loc->next->argv[0];
+
+ /* Check that our saved state won't cause a core dump... */
+ for (argc = 0; wp[argc]; argc++)
+ ;
+ if (user_opt.optind > argc ||
+ (user_opt.p != 0 &&
+ user_opt.p > strlen(wp[user_opt.optind - 1]))) {
+ bi_errorf("arguments changed since last call");
+ return (1);
+ }
+
+ user_opt.optarg = NULL;
+ optc = ksh_getopt(wp, &user_opt, opts);
+
+ if (optc >= 0 && optc != '?' && (user_opt.info & GI_PLUS)) {
+ buf[0] = '+';
+ buf[1] = optc;
+ buf[2] = '\0';
+ } else {
+ /*
+ * POSIX says var is set to ? at end-of-options, AT&T ksh
+ * sets it to null - we go with POSIX...
+ */
+ buf[0] = optc < 0 ? '?' : optc;
+ buf[1] = '\0';
+ }
+
+ /* AT&T ksh93 in fact does change OPTIND for unknown options too */
+ user_opt.uoptind = user_opt.optind;
+
+ voptarg = global("OPTARG");
+ /* AT&T ksh clears ro and int */
+ voptarg->flag &= ~RDONLY;
+ /* Paranoia: ensure no bizarre results. */
+ if (voptarg->flag & INTEGER)
+ typeset("OPTARG", 0, INTEGER, 0, 0);
+ if (user_opt.optarg == NULL)
+ unset(voptarg, 1);
+ else
+ /* This can't fail (have cleared readonly/integer) */
+ setstr(voptarg, user_opt.optarg, KSH_RETURN_ERROR);
+
+ rv = 0;
+
+ vq = global(var);
+ /* Error message already printed (integer, readonly) */
+ if (!setstr(vq, buf, KSH_RETURN_ERROR))
+ rv = 2;
+ if (Flag(FEXPORT))
+ typeset(var, EXPORT, 0, 0, 0);
+
+ return (optc < 0 ? 1 : rv);
+}
+
+#ifndef MKSH_NO_CMDLINE_EDITING
+int
+c_bind(const char **wp)
+{
+ int optc, rv = 0;
+#ifndef MKSH_SMALL
+ bool macro = false;
+#endif
+ bool list = false;
+ const char *cp;
+ char *up;
+
+ while ((optc = ksh_getopt(wp, &builtin_opt,
+#ifndef MKSH_SMALL
+ "lm"
+#else
+ "l"
+#endif
+ )) != -1)
+ switch (optc) {
+ case 'l':
+ list = true;
+ break;
+#ifndef MKSH_SMALL
+ case 'm':
+ macro = true;
+ break;
+#endif
+ case '?':
+ return (1);
+ }
+ wp += builtin_opt.optind;
+
+ if (*wp == NULL)
+ /* list all */
+ rv = x_bind(NULL, NULL,
+#ifndef MKSH_SMALL
+ false,
+#endif
+ list);
+
+ for (; *wp != NULL; wp++) {
+ if ((cp = cstrchr(*wp, '=')) == NULL)
+ up = NULL;
+ else {
+ strdupx(up, *wp, ATEMP);
+ up[cp++ - *wp] = '\0';
+ }
+ if (x_bind(up ? up : *wp, cp,
+#ifndef MKSH_SMALL
+ macro,
+#endif
+ false))
+ rv = 1;
+ afree(up, ATEMP);
+ }
+
+ return (rv);
+}
+#endif
+
+int
+c_shift(const char **wp)
+{
+ struct block *l = e->loc;
+ int n;
+ mksh_ari_t val;
+ const char *arg;
+
+ if (ksh_getopt(wp, &builtin_opt, null) == '?')
+ return (1);
+ arg = wp[builtin_opt.optind];
+
+ if (arg) {
+ evaluate(arg, &val, KSH_UNWIND_ERROR, false);
+ n = val;
+ } else
+ n = 1;
+ if (n < 0) {
+ bi_errorf("%s: %s", arg, "bad number");
+ return (1);
+ }
+ if (l->argc < n) {
+ bi_errorf("nothing to shift");
+ return (1);
+ }
+ l->argv[n] = l->argv[0];
+ l->argv += n;
+ l->argc -= n;
+ return (0);
+}
+
+int
+c_umask(const char **wp)
+{
+ int i, optc;
+ const char *cp;
+ bool symbolic = false;
+ mode_t old_umask;
+
+ while ((optc = ksh_getopt(wp, &builtin_opt, "S")) != -1)
+ switch (optc) {
+ case 'S':
+ symbolic = true;
+ break;
+ case '?':
+ return (1);
+ }
+ cp = wp[builtin_opt.optind];
+ if (cp == NULL) {
+ old_umask = umask((mode_t)0);
+ umask(old_umask);
+ if (symbolic) {
+ char buf[18], *p;
+ int j;
+
+ old_umask = ~old_umask;
+ p = buf;
+ for (i = 0; i < 3; i++) {
+ *p++ = "ugo"[i];
+ *p++ = '=';
+ for (j = 0; j < 3; j++)
+ if (old_umask & (1 << (8 - (3*i + j))))
+ *p++ = "rwx"[j];
+ *p++ = ',';
+ }
+ p[-1] = '\0';
+ shprintf("%s\n", buf);
+ } else
+ shprintf("%#3.3o\n", (unsigned int)old_umask);
+ } else {
+ mode_t new_umask;
+
+ if (ksh_isdigit(*cp)) {
+ for (new_umask = 0; *cp >= '0' && *cp <= '7'; cp++)
+ new_umask = new_umask * 8 + (*cp - '0');
+ if (*cp) {
+ bi_errorf("bad number");
+ return (1);
+ }
+ } else {
+ /* symbolic format */
+ int positions, new_val;
+ char op;
+
+ old_umask = umask((mode_t)0);
+ /* in case of error */
+ umask(old_umask);
+ old_umask = ~old_umask;
+ new_umask = old_umask;
+ positions = 0;
+ while (*cp) {
+ while (*cp && vstrchr("augo", *cp))
+ switch (*cp++) {
+ case 'a':
+ positions |= 0111;
+ break;
+ case 'u':
+ positions |= 0100;
+ break;
+ case 'g':
+ positions |= 0010;
+ break;
+ case 'o':
+ positions |= 0001;
+ break;
+ }
+ if (!positions)
+ /* default is a */
+ positions = 0111;
+ if (!vstrchr("=+-", op = *cp))
+ break;
+ cp++;
+ new_val = 0;
+ while (*cp && vstrchr("rwxugoXs", *cp))
+ switch (*cp++) {
+ case 'r': new_val |= 04; break;
+ case 'w': new_val |= 02; break;
+ case 'x': new_val |= 01; break;
+ case 'u':
+ new_val |= old_umask >> 6;
+ break;
+ case 'g':
+ new_val |= old_umask >> 3;
+ break;
+ case 'o':
+ new_val |= old_umask >> 0;
+ break;
+ case 'X':
+ if (old_umask & 0111)
+ new_val |= 01;
+ break;
+ case 's':
+ /* ignored */
+ break;
+ }
+ new_val = (new_val & 07) * positions;
+ switch (op) {
+ case '-':
+ new_umask &= ~new_val;
+ break;
+ case '=':
+ new_umask = new_val |
+ (new_umask & ~(positions * 07));
+ break;
+ case '+':
+ new_umask |= new_val;
+ }
+ if (*cp == ',') {
+ positions = 0;
+ cp++;
+ } else if (!vstrchr("=+-", *cp))
+ break;
+ }
+ if (*cp) {
+ bi_errorf("bad mask");
+ return (1);
+ }
+ new_umask = ~new_umask;
+ }
+ umask(new_umask);
+ }
+ return (0);
+}
+
+int
+c_dot(const char **wp)
+{
+ const char *file, *cp, **argv;
+ int argc, i, errcode;
+
+ if (ksh_getopt(wp, &builtin_opt, null) == '?')
+ return (1);
+
+ if ((cp = wp[builtin_opt.optind]) == NULL) {
+ bi_errorf("missing argument");
+ return (1);
+ }
+ if ((file = search_path(cp, path, R_OK, &errcode)) == NULL) {
+ bi_errorf("%s: %s", cp, cstrerror(errcode));
+ return (1);
+ }
+
+ /* Set positional parameters? */
+ if (wp[builtin_opt.optind + 1]) {
+ argv = wp + builtin_opt.optind;
+ /* preserve $0 */
+ argv[0] = e->loc->argv[0];
+ for (argc = 0; argv[argc + 1]; argc++)
+ ;
+ } else {
+ argc = 0;
+ argv = NULL;
+ }
+ if ((i = include(file, argc, argv, false)) < 0) {
+ /* should not happen */
+ bi_errorf("%s: %s", cp, cstrerror(errno));
+ return (1);
+ }
+ return (i);
+}
+
+int
+c_wait(const char **wp)
+{
+ int rv = 0, sig;
+
+ if (ksh_getopt(wp, &builtin_opt, null) == '?')
+ return (1);
+ wp += builtin_opt.optind;
+ if (*wp == NULL) {
+ while (waitfor(NULL, &sig) >= 0)
+ ;
+ rv = sig;
+ } else {
+ for (; *wp; wp++)
+ rv = waitfor(*wp, &sig);
+ if (rv < 0)
+ /* magic exit code: bad job-id */
+ rv = sig ? sig : 127;
+ }
+ return (rv);
+}
+
+static char REPLY[] = "REPLY";
+int
+c_read(const char **wp)
+{
+#define is_ifsws(c) (ctype((c), C_IFS) && ctype((c), C_IFSWS))
+ int c, fd = 0, rv = 0, lastparm = 0;
+ bool savehist = false, intoarray = false, aschars = false;
+ bool rawmode = false, expanding = false;
+ enum { LINES, BYTES, UPTO, READALL } readmode = LINES;
+ char delim = '\n';
+ size_t bytesleft = 128, bytesread;
+ struct tbl *vp /* FU gcc */ = NULL, *vq;
+ char *cp, *allocd = NULL, *xp;
+ const char *ccp;
+ XString xs;
+ ptrdiff_t xsave = 0;
+ mksh_ttyst tios;
+ bool restore_tios = false;
+#if HAVE_SELECT
+ bool hastimeout = false;
+ struct timeval tv, tvlim;
+#define c_read_opts "Aad:N:n:prst:u,"
+#else
+#define c_read_opts "Aad:N:n:prsu,"
+#endif
+
+ while ((c = ksh_getopt(wp, &builtin_opt, c_read_opts)) != -1)
+ switch (c) {
+ case 'a':
+ aschars = true;
+ /* FALLTHROUGH */
+ case 'A':
+ intoarray = true;
+ break;
+ case 'd':
+ delim = builtin_opt.optarg[0];
+ break;
+ case 'N':
+ case 'n':
+ readmode = c == 'N' ? BYTES : UPTO;
+ if (!bi_getn(builtin_opt.optarg, &c))
+ return (2);
+ if (c == -1) {
+ readmode = READALL;
+ bytesleft = 1024;
+ } else
+ bytesleft = (unsigned int)c;
+ break;
+ case 'p':
+ if ((fd = coproc_getfd(R_OK, &ccp)) < 0) {
+ bi_errorf("%s: %s", "-p", ccp);
+ return (2);
+ }
+ break;
+ case 'r':
+ rawmode = true;
+ break;
+ case 's':
+ savehist = true;
+ break;
+#if HAVE_SELECT
+ case 't':
+ if (parse_usec(builtin_opt.optarg, &tv)) {
+ bi_errorf("%s: %s '%s'", Tsynerr, cstrerror(errno),
+ builtin_opt.optarg);
+ return (2);
+ }
+ hastimeout = true;
+ break;
+#endif
+ case 'u':
+ if (!builtin_opt.optarg[0])
+ fd = 0;
+ else if ((fd = check_fd(builtin_opt.optarg, R_OK, &ccp)) < 0) {
+ bi_errorf("%s: %s: %s", "-u", builtin_opt.optarg, ccp);
+ return (2);
+ }
+ break;
+ case '?':
+ return (2);
+ }
+ wp += builtin_opt.optind;
+ if (*wp == NULL)
+ *--wp = REPLY;
+
+ if (intoarray && wp[1] != NULL) {
+ bi_errorf("too many arguments");
+ return (2);
+ }
+
+ if ((ccp = cstrchr(*wp, '?')) != NULL) {
+ strdupx(allocd, *wp, ATEMP);
+ allocd[ccp - *wp] = '\0';
+ *wp = allocd;
+ if (isatty(fd)) {
+ /*
+ * AT&T ksh says it prints prompt on fd if it's open
+ * for writing and is a tty, but it doesn't do it
+ * (it also doesn't check the interactive flag,
+ * as is indicated in the Korn Shell book).
+ */
+ shf_puts(ccp + 1, shl_out);
+ shf_flush(shl_out);
+ }
+ }
+
+ Xinit(xs, xp, bytesleft, ATEMP);
+
+ if (readmode == LINES)
+ bytesleft = 1;
+ else if (isatty(fd)) {
+ x_mkraw(fd, &tios, true);
+ restore_tios = true;
+ }
+
+#if HAVE_SELECT
+ if (hastimeout) {
+ mksh_TIME(tvlim);
+ timeradd(&tvlim, &tv, &tvlim);
+ }
+#endif
+
+ c_read_readloop:
+#if HAVE_SELECT
+ if (hastimeout) {
+ fd_set fdset;
+
+ FD_ZERO(&fdset);
+ FD_SET((unsigned int)fd, &fdset);
+ mksh_TIME(tv);
+ timersub(&tvlim, &tv, &tv);
+ if (tv.tv_sec < 0) {
+ /* timeout expired globally */
+ rv = 1;
+ goto c_read_out;
+ }
+
+ switch (select(fd + 1, &fdset, NULL, NULL, &tv)) {
+ case 1:
+ break;
+ case 0:
+ /* timeout expired for this call */
+ rv = 1;
+ goto c_read_out;
+ default:
+ bi_errorf("%s: %s", Tselect, cstrerror(errno));
+ rv = 2;
+ goto c_read_out;
+ }
+ }
+#endif
+
+ bytesread = blocking_read(fd, xp, bytesleft);
+ if (bytesread == (size_t)-1) {
+ /* interrupted */
+ if (errno == EINTR && fatal_trap_check()) {
+ /*
+ * Was the offending signal one that would
+ * normally kill a process? If so, pretend
+ * the read was killed.
+ */
+ rv = 2;
+ goto c_read_out;
+ }
+ /* just ignore the signal */
+ goto c_read_readloop;
+ }
+
+ switch (readmode) {
+ case READALL:
+ if (bytesread == 0) {
+ /* end of file reached */
+ rv = 1;
+ goto c_read_readdone;
+ }
+ xp += bytesread;
+ XcheckN(xs, xp, bytesleft);
+ break;
+
+ case UPTO:
+ if (bytesread == 0)
+ /* end of file reached */
+ rv = 1;
+ xp += bytesread;
+ goto c_read_readdone;
+
+ case BYTES:
+ if (bytesread == 0) {
+ /* end of file reached */
+ rv = 1;
+ xp = Xstring(xs, xp);
+ goto c_read_readdone;
+ }
+ xp += bytesread;
+ if ((bytesleft -= bytesread) == 0)
+ goto c_read_readdone;
+ break;
+ case LINES:
+ if (bytesread == 0) {
+ /* end of file reached */
+ rv = 1;
+ goto c_read_readdone;
+ }
+ if ((c = *xp) == '\0' && !aschars && delim != '\0') {
+ /* skip any read NULs unless delimiter */
+ break;
+ }
+ if (expanding) {
+ expanding = false;
+ if (c == delim) {
+ if (Flag(FTALKING_I) && isatty(fd)) {
+ /*
+ * set prompt in case this is
+ * called from .profile or $ENV
+ */
+ set_prompt(PS2, NULL);
+ pprompt(prompt, 0);
+ }
+ /* drop the backslash */
+ --xp;
+ /* and the delimiter */
+ break;
+ }
+ } else if (c == delim) {
+ goto c_read_readdone;
+ } else if (!rawmode && c == '\\') {
+ expanding = true;
+ }
+ Xcheck(xs, xp);
+ ++xp;
+ break;
+ }
+ goto c_read_readloop;
+
+ c_read_readdone:
+ bytesread = Xlength(xs, xp);
+ Xput(xs, xp, '\0');
+
+ /*-
+ * state: we finished reading the input and NUL terminated it
+ * Xstring(xs, xp) -> xp-1 = input string without trailing delim
+ * rv = 1 if EOF, 0 otherwise (errors handled already)
+ */
+
+ if (rv == 1) {
+ /* clean up coprocess if needed, on EOF */
+ coproc_read_close(fd);
+ if (readmode == READALL)
+ /* EOF is no error here */
+ rv = 0;
+ }
+
+ if (savehist)
+ histsave(&source->line, Xstring(xs, xp), true, false);
+
+ ccp = cp = Xclose(xs, xp);
+ expanding = false;
+ XinitN(xs, 128, ATEMP);
+ if (intoarray) {
+ vp = global(*wp);
+ if (vp->flag & RDONLY) {
+ c_read_splitro:
+ bi_errorf("read-only: %s", *wp);
+ c_read_spliterr:
+ rv = 2;
+ afree(cp, ATEMP);
+ goto c_read_out;
+ }
+ /* exporting an array is currently pointless */
+ unset(vp, 1);
+ /* counter for array index */
+ c = 0;
+ }
+ if (!aschars) {
+ /* skip initial IFS whitespace */
+ while (bytesread && is_ifsws(*ccp)) {
+ ++ccp;
+ --bytesread;
+ }
+ /* trim trailing IFS whitespace */
+ while (bytesread && is_ifsws(ccp[bytesread - 1])) {
+ --bytesread;
+ }
+ }
+ c_read_splitloop:
+ xp = Xstring(xs, xp);
+ /* generate next word */
+ if (!bytesread) {
+ /* no more input */
+ if (intoarray)
+ goto c_read_splitdone;
+ /* zero out next parameters */
+ goto c_read_gotword;
+ }
+ if (aschars) {
+ Xput(xs, xp, '1');
+ Xput(xs, xp, '#');
+ bytesleft = utf_ptradj(ccp);
+ while (bytesleft && bytesread) {
+ *xp++ = *ccp++;
+ --bytesleft;
+ --bytesread;
+ }
+ if (xp[-1] == '\0') {
+ xp[-1] = '0';
+ xp[-3] = '2';
+ }
+ goto c_read_gotword;
+ }
+
+ if (!intoarray && wp[1] == NULL)
+ lastparm = 1;
+
+ c_read_splitlast:
+ /* copy until IFS character */
+ while (bytesread) {
+ char ch;
+
+ ch = *ccp;
+ if (expanding) {
+ expanding = false;
+ goto c_read_splitcopy;
+ } else if (ctype(ch, C_IFS)) {
+ break;
+ } else if (!rawmode && ch == '\\') {
+ expanding = true;
+ } else {
+ c_read_splitcopy:
+ Xcheck(xs, xp);
+ Xput(xs, xp, ch);
+ }
+ ++ccp;
+ --bytesread;
+ }
+ xsave = Xsavepos(xs, xp);
+ /* copy word delimiter: IFSWS+IFS,IFSWS */
+ while (bytesread) {
+ char ch;
+
+ ch = *ccp;
+ if (!ctype(ch, C_IFS))
+ break;
+ Xcheck(xs, xp);
+ Xput(xs, xp, ch);
+ ++ccp;
+ --bytesread;
+ if (!ctype(ch, C_IFSWS))
+ break;
+ }
+ while (bytesread && is_ifsws(*ccp)) {
+ Xcheck(xs, xp);
+ Xput(xs, xp, *ccp);
+ ++ccp;
+ --bytesread;
+ }
+ /* if no more parameters, rinse and repeat */
+ if (lastparm && bytesread) {
+ ++lastparm;
+ goto c_read_splitlast;
+ }
+ /* get rid of the delimiter unless we pack the rest */
+ if (lastparm < 2)
+ xp = Xrestpos(xs, xp, xsave);
+ c_read_gotword:
+ Xput(xs, xp, '\0');
+ if (intoarray) {
+ vq = arraysearch(vp, c++);
+ } else {
+ vq = global(*wp);
+ /* must be checked before exporting */
+ if (vq->flag & RDONLY)
+ goto c_read_splitro;
+ if (Flag(FEXPORT))
+ typeset(*wp, EXPORT, 0, 0, 0);
+ }
+ if (!setstr(vq, Xstring(xs, xp), KSH_RETURN_ERROR))
+ goto c_read_spliterr;
+ if (aschars) {
+ setint_v(vq, vq, false);
+ /* protect from UTFMODE changes */
+ vq->type = 0;
+ }
+ if (intoarray || *++wp != NULL)
+ goto c_read_splitloop;
+
+ c_read_splitdone:
+ /* free up */
+ afree(cp, ATEMP);
+
+ c_read_out:
+ afree(allocd, ATEMP);
+ Xfree(xs, xp);
+ if (restore_tios)
+ mksh_tcset(fd, &tios);
+ return (rv);
+#undef is_ifsws
+}
+
+int
+c_eval(const char **wp)
+{
+ struct source *s, *saves = source;
+ unsigned char savef;
+ int rv;
+
+ if (ksh_getopt(wp, &builtin_opt, null) == '?')
+ return (1);
+ s = pushs(SWORDS, ATEMP);
+ s->u.strv = wp + builtin_opt.optind;
+
+ /*-
+ * The following code handles the case where the command is
+ * empty due to failed command substitution, for example by
+ * eval "$(false)"
+ * This has historically returned 1 by AT&T ksh88. In this
+ * case, shell() will not set or change exstat because the
+ * compiled tree is empty, so it will use the value we pass
+ * from subst_exstat, which is cleared in execute(), so it
+ * should have been 0 if there were no substitutions.
+ *
+ * POSIX however says we don't do this, even though it is
+ * traditionally done. AT&T ksh93 agrees with POSIX, so we
+ * do. The following is an excerpt from SUSv4 [1003.2-2008]:
+ *
+ * 2.9.1: Simple Commands
+ * ... If there is a command name, execution shall
+ * continue as described in 2.9.1.1 [Command Search
+ * and Execution]. If there is no command name, but
+ * the command contained a command substitution, the
+ * command shall complete with the exit status of the
+ * last command substitution performed.
+ * 2.9.1.1: Command Search and Execution
+ * (1) a. If the command name matches the name of a
+ * special built-in utility, that special built-in
+ * utility shall be invoked.
+ * 2.14.5: eval
+ * If there are no arguments, or only null arguments,
+ * eval shall return a zero exit status; ...
+ */
+ /* AT&T ksh88: use subst_exstat */
+ /* exstat = subst_exstat; */
+ /* SUSv4: OR with a high value never written otherwise */
+ exstat |= 0x4000;
+
+ savef = Flag(FERREXIT);
+ Flag(FERREXIT) |= 0x80;
+ rv = shell(s, false);
+ Flag(FERREXIT) = savef;
+ source = saves;
+ afree(s, ATEMP);
+ if (exstat & 0x4000)
+ /* detect old exstat, use 0 in that case */
+ rv = 0;
+ return (rv);
+}
+
+int
+c_trap(const char **wp)
+{
+ int i;
+ const char *s;
+ Trap *p;
+
+ if (ksh_getopt(wp, &builtin_opt, null) == '?')
+ return (1);
+ wp += builtin_opt.optind;
+
+ if (*wp == NULL) {
+ for (p = sigtraps, i = NSIG + 1; --i >= 0; p++)
+ if (p->trap != NULL) {
+ shf_puts("trap -- ", shl_stdout);
+ print_value_quoted(shl_stdout, p->trap);
+ shprintf(" %s\n", p->name);
+ }
+ return (0);
+ }
+
+ /*
+ * Use case sensitive lookup for first arg so the
+ * command 'exit' isn't confused with the pseudo-signal
+ * 'EXIT'.
+ */
+ /* get command */
+ s = (gettrap(*wp, false) == NULL) ? *wp++ : NULL;
+ if (s != NULL && s[0] == '-' && s[1] == '\0')
+ s = NULL;
+
+ /* set/clear traps */
+ i = 0;
+ while (*wp != NULL)
+ if ((p = gettrap(*wp++, true)) == NULL) {
+ warningf(true, "%s: %s '%s'", builtin_argv0,
+ "bad signal", wp[-1]);
+ ++i;
+ } else
+ settrap(p, s);
+ return (i);
+}
+
+int
+c_exitreturn(const char **wp)
+{
+ int n, how = LEXIT;
+ const char *arg;
+
+ if (ksh_getopt(wp, &builtin_opt, null) == '?')
+ goto c_exitreturn_err;
+ arg = wp[builtin_opt.optind];
+
+ if (arg) {
+ if (!getn(arg, &n)) {
+ exstat = 1;
+ warningf(true, "%s: %s", arg, "bad number");
+ } else
+ exstat = n & 0xFF;
+ } else if (trap_exstat != -1)
+ exstat = trap_exstat;
+ if (wp[0][0] == 'r') {
+ /* return */
+ struct env *ep;
+
+ /*
+ * need to tell if this is exit or return so trap exit will
+ * work right (POSIX)
+ */
+ for (ep = e; ep; ep = ep->oenv)
+ if (STOP_RETURN(ep->type)) {
+ how = LRETURN;
+ break;
+ }
+ }
+
+ if (how == LEXIT && !really_exit && j_stopped_running()) {
+ really_exit = true;
+ how = LSHELL;
+ }
+
+ /* get rid of any i/o redirections */
+ quitenv(NULL);
+ unwind(how);
+ /* NOTREACHED */
+
+ c_exitreturn_err:
+ return (1);
+}
+
+int
+c_brkcont(const char **wp)
+{
+ unsigned int quit;
+ int n;
+ struct env *ep, *last_ep = NULL;
+ const char *arg;
+
+ if (ksh_getopt(wp, &builtin_opt, null) == '?')
+ goto c_brkcont_err;
+ arg = wp[builtin_opt.optind];
+
+ if (!arg)
+ n = 1;
+ else if (!bi_getn(arg, &n))
+ goto c_brkcont_err;
+ if (n <= 0) {
+ /* AT&T ksh does this for non-interactive shells only - weird */
+ bi_errorf("%s: %s", arg, "bad value");
+ goto c_brkcont_err;
+ }
+ quit = (unsigned int)n;
+
+ /* Stop at E_NONE, E_PARSE, E_FUNC, or E_INCL */
+ for (ep = e; ep && !STOP_BRKCONT(ep->type); ep = ep->oenv)
+ if (ep->type == E_LOOP) {
+ if (--quit == 0)
+ break;
+ ep->flags |= EF_BRKCONT_PASS;
+ last_ep = ep;
+ }
+
+ if (quit) {
+ /*
+ * AT&T ksh doesn't print a message - just does what it
+ * can. We print a message 'cause it helps in debugging
+ * scripts, but don't generate an error (ie, keep going).
+ */
+ if ((unsigned int)n == quit) {
+ warningf(true, "%s: %s %s", wp[0], "can't", wp[0]);
+ return (0);
+ }
+ /*
+ * POSIX says if n is too big, the last enclosing loop
+ * shall be used. Doesn't say to print an error but we
+ * do anyway 'cause the user messed up.
+ */
+ if (last_ep)
+ last_ep->flags &= ~EF_BRKCONT_PASS;
+ warningf(true, "%s: can only %s %u level(s)",
+ wp[0], wp[0], (unsigned int)n - quit);
+ }
+
+ unwind(*wp[0] == 'b' ? LBREAK : LCONTIN);
+ /* NOTREACHED */
+
+ c_brkcont_err:
+ return (1);
+}
+
+int
+c_set(const char **wp)
+{
+ int argi;
+ bool setargs;
+ struct block *l = e->loc;
+ const char **owp;
+
+ if (wp[1] == NULL) {
+ static const char *args[] = { Tset, "-", NULL };
+ return (c_typeset(args));
+ }
+
+ argi = parse_args(wp, OF_SET, &setargs);
+ if (argi < 0)
+ return (1);
+ /* set $# and $* */
+ if (setargs) {
+ wp += argi - 1;
+ owp = wp;
+ /* save $0 */
+ wp[0] = l->argv[0];
+ while (*++wp != NULL)
+ strdupx(*wp, *wp, &l->area);
+ l->argc = wp - owp - 1;
+ l->argv = alloc2(l->argc + 2, sizeof(char *), &l->area);
+ for (wp = l->argv; (*wp++ = *owp++) != NULL; )
+ ;
+ }
+ /*-
+ * POSIX says set exit status is 0, but old scripts that use
+ * getopt(1) use the construct
+ * set -- $(getopt ab:c "$@")
+ * which assumes the exit value set will be that of the $()
+ * (subst_exstat is cleared in execute() so that it will be 0
+ * if there are no command substitutions).
+ */
+#ifdef MKSH_LEGACY_MODE
+ /* traditional behaviour, unless set -o posix */
+ return (Flag(FPOSIX) ? 0 : subst_exstat);
+#else
+ /* conformant behaviour, unless set -o sh +o posix */
+ return (Flag(FSH) && !Flag(FPOSIX) ? subst_exstat : 0);
+#endif
+}
+
+int
+c_unset(const char **wp)
+{
+ const char *id;
+ int optc, rv = 0;
+ bool unset_var = true;
+
+ while ((optc = ksh_getopt(wp, &builtin_opt, "fv")) != -1)
+ switch (optc) {
+ case 'f':
+ unset_var = false;
+ break;
+ case 'v':
+ unset_var = true;
+ break;
+ case '?':
+ /*XXX not reached due to GF_ERROR */
+ return (2);
+ }
+ wp += builtin_opt.optind;
+ for (; (id = *wp) != NULL; wp++)
+ if (unset_var) {
+ /* unset variable */
+ struct tbl *vp;
+ char *cp = NULL;
+ size_t n;
+
+ n = strlen(id);
+ if (n > 3 && id[n-3] == '[' && id[n-2] == '*' &&
+ id[n-1] == ']') {
+ strndupx(cp, id, n - 3, ATEMP);
+ id = cp;
+ optc = 3;
+ } else
+ optc = vstrchr(id, '[') ? 0 : 1;
+
+ vp = global(id);
+ afree(cp, ATEMP);
+
+ if ((vp->flag&RDONLY)) {
+ warningf(true, "read-only: %s", vp->name);
+ rv = 1;
+ } else
+ unset(vp, optc);
+ } else
+ /* unset function */
+ define(id, NULL);
+ return (rv);
+}
+
+static void
+p_time(struct shf *shf, bool posix, long tv_sec, int tv_usec, int width,
+ const char *prefix, const char *suffix)
+{
+ tv_usec /= 10000;
+ if (posix)
+ shf_fprintf(shf, "%s%*ld.%02d%s", prefix, width,
+ tv_sec, tv_usec, suffix);
+ else
+ shf_fprintf(shf, "%s%*ldm%d.%02ds%s", prefix, width,
+ tv_sec / 60, (int)(tv_sec % 60), tv_usec, suffix);
+}
+
+int
+c_times(const char **wp MKSH_A_UNUSED)
+{
+ struct rusage usage;
+
+ getrusage(RUSAGE_SELF, &usage);
+ p_time(shl_stdout, false, usage.ru_utime.tv_sec,
+ usage.ru_utime.tv_usec, 0, null, " ");
+ p_time(shl_stdout, false, usage.ru_stime.tv_sec,
+ usage.ru_stime.tv_usec, 0, null, "\n");
+
+ getrusage(RUSAGE_CHILDREN, &usage);
+ p_time(shl_stdout, false, usage.ru_utime.tv_sec,
+ usage.ru_utime.tv_usec, 0, null, " ");
+ p_time(shl_stdout, false, usage.ru_stime.tv_sec,
+ usage.ru_stime.tv_usec, 0, null, "\n");
+
+ return (0);
+}
+
+/*
+ * time pipeline (really a statement, not a built-in command)
+ */
+int
+timex(struct op *t, int f, volatile int *xerrok)
+{
+#define TF_NOARGS BIT(0)
+#define TF_NOREAL BIT(1) /* don't report real time */
+#define TF_POSIX BIT(2) /* report in POSIX format */
+ int rv = 0, tf = 0;
+ struct rusage ru0, ru1, cru0, cru1;
+ struct timeval usrtime, systime, tv0, tv1;
+
+ mksh_TIME(tv0);
+ getrusage(RUSAGE_SELF, &ru0);
+ getrusage(RUSAGE_CHILDREN, &cru0);
+ if (t->left) {
+ /*
+ * Two ways of getting cpu usage of a command: just use t0
+ * and t1 (which will get cpu usage from other jobs that
+ * finish while we are executing t->left), or get the
+ * cpu usage of t->left. AT&T ksh does the former, while
+ * pdksh tries to do the later (the j_usrtime hack doesn't
+ * really work as it only counts the last job).
+ */
+ timerclear(&j_usrtime);
+ timerclear(&j_systime);
+ rv = execute(t->left, f | XTIME, xerrok);
+ if (t->left->type == TCOM)
+ tf |= t->left->str[0];
+ mksh_TIME(tv1);
+ getrusage(RUSAGE_SELF, &ru1);
+ getrusage(RUSAGE_CHILDREN, &cru1);
+ } else
+ tf = TF_NOARGS;
+
+ if (tf & TF_NOARGS) {
+ /* ksh93 - report shell times (shell+kids) */
+ tf |= TF_NOREAL;
+ timeradd(&ru0.ru_utime, &cru0.ru_utime, &usrtime);
+ timeradd(&ru0.ru_stime, &cru0.ru_stime, &systime);
+ } else {
+ timersub(&ru1.ru_utime, &ru0.ru_utime, &usrtime);
+ timeradd(&usrtime, &j_usrtime, &usrtime);
+ timersub(&ru1.ru_stime, &ru0.ru_stime, &systime);
+ timeradd(&systime, &j_systime, &systime);
+ }
+
+ if (!(tf & TF_NOREAL)) {
+ timersub(&tv1, &tv0, &tv1);
+ if (tf & TF_POSIX)
+ p_time(shl_out, true, tv1.tv_sec, tv1.tv_usec,
+ 5, "real ", "\n");
+ else
+ p_time(shl_out, false, tv1.tv_sec, tv1.tv_usec,
+ 5, null, " real ");
+ }
+ if (tf & TF_POSIX)
+ p_time(shl_out, true, usrtime.tv_sec, usrtime.tv_usec,
+ 5, "user ", "\n");
+ else
+ p_time(shl_out, false, usrtime.tv_sec, usrtime.tv_usec,
+ 5, null, " user ");
+ if (tf & TF_POSIX)
+ p_time(shl_out, true, systime.tv_sec, systime.tv_usec,
+ 5, "sys ", "\n");
+ else
+ p_time(shl_out, false, systime.tv_sec, systime.tv_usec,
+ 5, null, " system\n");
+ shf_flush(shl_out);
+
+ return (rv);
+}
+
+void
+timex_hook(struct op *t, char **volatile *app)
+{
+ char **wp = *app;
+ int optc, i, j;
+ Getopt opt;
+
+ ksh_getopt_reset(&opt, 0);
+ /* start at the start */
+ opt.optind = 0;
+ while ((optc = ksh_getopt((const char **)wp, &opt, ":p")) != -1)
+ switch (optc) {
+ case 'p':
+ t->str[0] |= TF_POSIX;
+ break;
+ case '?':
+ errorf("time: -%s %s", opt.optarg,
+ "unknown option");
+ case ':':
+ errorf("time: -%s %s", opt.optarg,
+ "requires an argument");
+ }
+ /* Copy command words down over options. */
+ if (opt.optind != 0) {
+ for (i = 0; i < opt.optind; i++)
+ afree(wp[i], ATEMP);
+ for (i = 0, j = opt.optind; (wp[i] = wp[j]); i++, j++)
+ ;
+ }
+ if (!wp[0])
+ t->str[0] |= TF_NOARGS;
+ *app = wp;
+}
+
+/* exec with no args - args case is taken care of in comexec() */
+int
+c_exec(const char **wp MKSH_A_UNUSED)
+{
+ int i;
+
+ /* make sure redirects stay in place */
+ if (e->savefd != NULL) {
+ for (i = 0; i < NUFILE; i++) {
+ if (e->savefd[i] > 0)
+ close(e->savefd[i]);
+#ifndef MKSH_LEGACY_MODE
+ /*
+ * keep all file descriptors > 2 private for ksh,
+ * but not for POSIX or legacy/kludge sh
+ */
+ if (!Flag(FPOSIX) && !Flag(FSH) && i > 2 &&
+ e->savefd[i])
+ fcntl(i, F_SETFD, FD_CLOEXEC);
+#endif
+ }
+ e->savefd = NULL;
+ }
+ return (0);
+}
+
+#if HAVE_MKNOD
+int
+c_mknod(const char **wp)
+{
+ int argc, optc, rv = 0;
+ bool ismkfifo = false;
+ const char **argv;
+ void *set = NULL;
+ mode_t mode = 0, oldmode = 0;
+
+ while ((optc = ksh_getopt(wp, &builtin_opt, "m:")) != -1) {
+ switch (optc) {
+ case 'm':
+ set = setmode(builtin_opt.optarg);
+ if (set == NULL) {
+ bi_errorf("invalid file mode");
+ return (1);
+ }
+ mode = getmode(set, (mode_t)(DEFFILEMODE));
+ free_ossetmode(set);
+ break;
+ default:
+ goto c_mknod_usage;
+ }
+ }
+ argv = &wp[builtin_opt.optind];
+ if (argv[0] == NULL)
+ goto c_mknod_usage;
+ for (argc = 0; argv[argc]; argc++)
+ ;
+ if (argc == 2 && argv[1][0] == 'p')
+ ismkfifo = true;
+ else if (argc != 4 || (argv[1][0] != 'b' && argv[1][0] != 'c'))
+ goto c_mknod_usage;
+
+ if (set != NULL)
+ oldmode = umask((mode_t)0);
+ else
+ mode = DEFFILEMODE;
+
+ mode |= (argv[1][0] == 'b') ? S_IFBLK :
+ (argv[1][0] == 'c') ? S_IFCHR : 0;
+
+ if (!ismkfifo) {
+ unsigned long majnum, minnum;
+ dev_t dv;
+ char *c;
+
+ majnum = strtoul(argv[2], &c, 0);
+ if ((c == argv[2]) || (*c != '\0')) {
+ bi_errorf("non-numeric %s %s '%s'", "device", "major", argv[2]);
+ goto c_mknod_err;
+ }
+ minnum = strtoul(argv[3], &c, 0);
+ if ((c == argv[3]) || (*c != '\0')) {
+ bi_errorf("non-numeric %s %s '%s'", "device", "minor", argv[3]);
+ goto c_mknod_err;
+ }
+ dv = makedev(majnum, minnum);
+ if ((unsigned long)(major(dv)) != majnum) {
+ bi_errorf("%s %s too large: %lu", "device", "major", majnum);
+ goto c_mknod_err;
+ }
+ if ((unsigned long)(minor(dv)) != minnum) {
+ bi_errorf("%s %s too large: %lu", "device", "minor", minnum);
+ goto c_mknod_err;
+ }
+ if (mknod(argv[0], mode, dv))
+ goto c_mknod_failed;
+ } else if (mkfifo(argv[0], mode)) {
+ c_mknod_failed:
+ bi_errorf("%s: %s", argv[0], cstrerror(errno));
+ c_mknod_err:
+ rv = 1;
+ }
+
+ if (set)
+ umask(oldmode);
+ return (rv);
+ c_mknod_usage:
+ bi_errorf("%s: %s", "usage", "mknod [-m mode] name b|c major minor");
+ bi_errorf("%s: %s", "usage", "mknod [-m mode] name p");
+ return (1);
+}
+#endif
+
+/*-
+ test(1) roughly accepts the following grammar:
+ oexpr ::= aexpr | aexpr "-o" oexpr ;
+ aexpr ::= nexpr | nexpr "-a" aexpr ;
+ nexpr ::= primary | "!" nexpr ;
+ primary ::= unary-operator operand
+ | operand binary-operator operand
+ | operand
+ | "(" oexpr ")"
+ ;
+
+ unary-operator ::= "-a"|"-r"|"-w"|"-x"|"-e"|"-f"|"-d"|"-c"|"-b"|"-p"|
+ "-u"|"-g"|"-k"|"-s"|"-t"|"-z"|"-n"|"-o"|"-O"|"-G"|
+ "-L"|"-h"|"-S"|"-H";
+
+ binary-operator ::= "="|"=="|"!="|"-eq"|"-ne"|"-ge"|"-gt"|"-le"|"-lt"|
+ "-nt"|"-ot"|"-ef"|
+ "<"|">" # rules used for [[ ... ]] expressions
+ ;
+ operand ::= <anything>
+*/
+
+/* POSIX says > 1 for errors */
+#define T_ERR_EXIT 2
+
+int
+c_test(const char **wp)
+{
+ int argc, rv, invert = 0;
+ Test_env te;
+ Test_op op;
+ const char *lhs, **swp;
+
+ te.flags = 0;
+ te.isa = ptest_isa;
+ te.getopnd = ptest_getopnd;
+ te.eval = test_eval;
+ te.error = ptest_error;
+
+ for (argc = 0; wp[argc]; argc++)
+ ;
+ mkssert(argc > 0);
+ mkssert(wp[0] != NULL);
+
+ if (strcmp(wp[0], "[") == 0) {
+ if (strcmp(wp[--argc], "]") != 0) {
+ bi_errorf("missing ]");
+ return (T_ERR_EXIT);
+ }
+ }
+
+ te.pos.wp = wp + 1;
+ te.wp_end = wp + argc;
+
+ /*
+ * Attempt to conform to POSIX special cases. This is pretty
+ * dumb code straight-forward from the 2008 spec, but unless
+ * the old pdksh code doesn't live from so many assumptions.
+ * It does, though, inline some calls to '(*te.funcname)()'.
+ */
+ switch (argc - 1) {
+ case 0:
+ return (1);
+ case 1:
+ ptest_one:
+ op = TO_STNZE;
+ goto ptest_unary;
+ case 2:
+ ptest_two:
+ if (ptest_isa(&te, TM_NOT)) {
+ ++invert;
+ goto ptest_one;
+ }
+ if ((op = ptest_isa(&te, TM_UNOP))) {
+ ptest_unary:
+ rv = test_eval(&te, op, *te.pos.wp++, NULL, true);
+ ptest_out:
+ return ((invert & 1) ? rv : !rv);
+ }
+ /* let the parser deal with anything else */
+ break;
+ case 3:
+ ptest_three:
+ swp = te.pos.wp;
+ /* use inside knowledge of ptest_getopnd inlined below */
+ lhs = *te.pos.wp++;
+ if ((op = ptest_isa(&te, TM_BINOP))) {
+ /* test lhs op rhs */
+ rv = test_eval(&te, op, lhs, *te.pos.wp++, true);
+ goto ptest_out;
+ }
+ /* back up to lhs */
+ te.pos.wp = swp;
+ if (ptest_isa(&te, TM_NOT)) {
+ ++invert;
+ goto ptest_two;
+ }
+ if (ptest_isa(&te, TM_OPAREN)) {
+ swp = te.pos.wp;
+ /* skip operand, without evaluation */
+ te.pos.wp++;
+ /* check for closing parenthesis */
+ op = ptest_isa(&te, TM_CPAREN);
+ /* back up to operand */
+ te.pos.wp = swp;
+ /* if there was a closing paren, handle it */
+ if (op)
+ goto ptest_one;
+ /* backing up is done before calling the parser */
+ }
+ /* let the parser deal with it */
+ break;
+ case 4:
+ if (ptest_isa(&te, TM_NOT)) {
+ ++invert;
+ goto ptest_three;
+ }
+ if (ptest_isa(&te, TM_OPAREN)) {
+ swp = te.pos.wp;
+ /* skip two operands, without evaluation */
+ te.pos.wp++;
+ te.pos.wp++;
+ /* check for closing parenthesis */
+ op = ptest_isa(&te, TM_CPAREN);
+ /* back up to first operand */
+ te.pos.wp = swp;
+ /* if there was a closing paren, handle it */
+ if (op)
+ goto ptest_two;
+ /* backing up is done before calling the parser */
+ }
+ /* defer this to the parser */
+ break;
+ }
+
+ /* "The results are unspecified." */
+ te.pos.wp = wp + 1;
+ return (test_parse(&te));
+}
+
+/*
+ * Generic test routines.
+ */
+
+Test_op
+test_isop(Test_meta meta, const char *s)
+{
+ char sc1;
+ const struct t_op *tbl;
+
+ tbl = meta == TM_UNOP ? u_ops : b_ops;
+ if (*s) {
+ sc1 = s[1];
+ for (; tbl->op_text[0]; tbl++)
+ if (sc1 == tbl->op_text[1] && !strcmp(s, tbl->op_text))
+ return (tbl->op_num);
+ }
+ return (TO_NONOP);
+}
+
+int
+test_eval(Test_env *te, Test_op op, const char *opnd1, const char *opnd2,
+ bool do_eval)
+{
+ int i, s;
+ size_t k;
+ struct stat b1, b2;
+ mksh_ari_t v1, v2;
+
+ if (!do_eval)
+ return (0);
+
+#ifdef DEBUG
+ switch (op) {
+ /* Binary operators */
+ case TO_STEQL:
+ case TO_STNEQ:
+ case TO_STLT:
+ case TO_STGT:
+ case TO_INTEQ:
+ case TO_INTNE:
+ case TO_INTGT:
+ case TO_INTGE:
+ case TO_INTLT:
+ case TO_INTLE:
+ case TO_FILEQ:
+ case TO_FILNT:
+ case TO_FILOT:
+ /* consistency check, but does not happen in practice */
+ if (!opnd2) {
+ te->flags |= TEF_ERROR;
+ return (1);
+ }
+ break;
+ default:
+ /* for completeness of switch */
+ break;
+ }
+#endif
+
+ switch (op) {
+
+ /*
+ * Unary Operators
+ */
+
+ /* -n */
+ case TO_STNZE:
+ return (*opnd1 != '\0');
+
+ /* -z */
+ case TO_STZER:
+ return (*opnd1 == '\0');
+
+ /* -o */
+ case TO_OPTION:
+ if ((i = *opnd1) == '!' || i == '?')
+ opnd1++;
+ if ((k = option(opnd1)) == (size_t)-1)
+ return (0);
+ return (i == '?' ? 1 : i == '!' ? !Flag(k) : Flag(k));
+
+ /* -r */
+ case TO_FILRD:
+ /* LINTED use of access */
+ return (access(opnd1, R_OK) == 0);
+
+ /* -w */
+ case TO_FILWR:
+ /* LINTED use of access */
+ return (access(opnd1, W_OK) == 0);
+
+ /* -x */
+ case TO_FILEX:
+ return (ksh_access(opnd1, X_OK) == 0);
+
+ /* -a */
+ case TO_FILAXST:
+ /* -e */
+ case TO_FILEXST:
+ return (stat(opnd1, &b1) == 0);
+
+ /* -r */
+ case TO_FILREG:
+ return (stat(opnd1, &b1) == 0 && S_ISREG(b1.st_mode));
+
+ /* -d */
+ case TO_FILID:
+ return (stat(opnd1, &b1) == 0 && S_ISDIR(b1.st_mode));
+
+ /* -c */
+ case TO_FILCDEV:
+ return (stat(opnd1, &b1) == 0 && S_ISCHR(b1.st_mode));
+
+ /* -b */
+ case TO_FILBDEV:
+ return (stat(opnd1, &b1) == 0 && S_ISBLK(b1.st_mode));
+
+ /* -p */
+ case TO_FILFIFO:
+ return (stat(opnd1, &b1) == 0 && S_ISFIFO(b1.st_mode));
+
+ /* -h or -L */
+ case TO_FILSYM:
+#ifdef MKSH__NO_SYMLINK
+ return (0);
+#else
+ return (lstat(opnd1, &b1) == 0 && S_ISLNK(b1.st_mode));
+#endif
+
+ /* -S */
+ case TO_FILSOCK:
+ return (stat(opnd1, &b1) == 0 && S_ISSOCK(b1.st_mode));
+
+ /* -H => HP context dependent files (directories) */
+ case TO_FILCDF:
+#ifdef S_ISCDF
+ {
+ char *nv;
+
+ /*
+ * Append a + to filename and check to see if result is
+ * a setuid directory. CDF stuff in general is hookey,
+ * since it breaks for, e.g., the following sequence:
+ * echo hi >foo+; mkdir foo; echo bye >foo/default;
+ * chmod u+s foo (foo+ refers to the file with hi in it,
+ * there is no way to get at the file with bye in it;
+ * please correct me if I'm wrong about this).
+ */
+
+ nv = shf_smprintf("%s+", opnd1);
+ i = (stat(nv, &b1) == 0 && S_ISCDF(b1.st_mode));
+ afree(nv, ATEMP);
+ return (i);
+ }
+#else
+ return (0);
+#endif
+
+ /* -u */
+ case TO_FILSETU:
+ return (stat(opnd1, &b1) == 0 &&
+ (b1.st_mode & S_ISUID) == S_ISUID);
+
+ /* -g */
+ case TO_FILSETG:
+ return (stat(opnd1, &b1) == 0 &&
+ (b1.st_mode & S_ISGID) == S_ISGID);
+
+ /* -k */
+ case TO_FILSTCK:
+#ifdef S_ISVTX
+ return (stat(opnd1, &b1) == 0 &&
+ (b1.st_mode & S_ISVTX) == S_ISVTX);
+#else
+ return (0);
+#endif
+
+ /* -s */
+ case TO_FILGZ:
+ return (stat(opnd1, &b1) == 0 && (off_t)b1.st_size > (off_t)0);
+
+ /* -t */
+ case TO_FILTT:
+ if (opnd1 && !bi_getn(opnd1, &i)) {
+ te->flags |= TEF_ERROR;
+ i = 0;
+ } else
+ i = isatty(opnd1 ? i : 0);
+ return (i);
+
+ /* -O */
+ case TO_FILUID:
+ return (stat(opnd1, &b1) == 0 && (uid_t)b1.st_uid == ksheuid);
+
+ /* -G */
+ case TO_FILGID:
+ return (stat(opnd1, &b1) == 0 && (gid_t)b1.st_gid == getegid());
+
+ /*
+ * Binary Operators
+ */
+
+ /* = */
+ case TO_STEQL:
+ if (te->flags & TEF_DBRACKET)
+ return (gmatchx(opnd1, opnd2, false));
+ return (strcmp(opnd1, opnd2) == 0);
+
+ /* != */
+ case TO_STNEQ:
+ if (te->flags & TEF_DBRACKET)
+ return (!gmatchx(opnd1, opnd2, false));
+ return (strcmp(opnd1, opnd2) != 0);
+
+ /* < */
+ case TO_STLT:
+ return (strcmp(opnd1, opnd2) < 0);
+
+ /* > */
+ case TO_STGT:
+ return (strcmp(opnd1, opnd2) > 0);
+
+ /* -eq */
+ case TO_INTEQ:
+ /* -ne */
+ case TO_INTNE:
+ /* -ge */
+ case TO_INTGE:
+ /* -gt */
+ case TO_INTGT:
+ /* -le */
+ case TO_INTLE:
+ /* -lt */
+ case TO_INTLT:
+ if (!evaluate(opnd1, &v1, KSH_RETURN_ERROR, false) ||
+ !evaluate(opnd2, &v2, KSH_RETURN_ERROR, false)) {
+ /* error already printed.. */
+ te->flags |= TEF_ERROR;
+ return (1);
+ }
+ switch (op) {
+ case TO_INTEQ:
+ return (v1 == v2);
+ case TO_INTNE:
+ return (v1 != v2);
+ case TO_INTGE:
+ return (v1 >= v2);
+ case TO_INTGT:
+ return (v1 > v2);
+ case TO_INTLE:
+ return (v1 <= v2);
+ case TO_INTLT:
+ return (v1 < v2);
+ default:
+ /* NOTREACHED */
+ break;
+ }
+ /* NOTREACHED */
+
+ /* -nt */
+ case TO_FILNT:
+ /*
+ * ksh88/ksh93 succeed if file2 can't be stated
+ * (subtly different from 'does not exist').
+ */
+ return (stat(opnd1, &b1) == 0 &&
+ (((s = stat(opnd2, &b2)) == 0 &&
+ b1.st_mtime > b2.st_mtime) || s < 0));
+
+ /* -ot */
+ case TO_FILOT:
+ /*
+ * ksh88/ksh93 succeed if file1 can't be stated
+ * (subtly different from 'does not exist').
+ */
+ return (stat(opnd2, &b2) == 0 &&
+ (((s = stat(opnd1, &b1)) == 0 &&
+ b1.st_mtime < b2.st_mtime) || s < 0));
+
+ /* -ef */
+ case TO_FILEQ:
+ return (stat (opnd1, &b1) == 0 && stat (opnd2, &b2) == 0 &&
+ b1.st_dev == b2.st_dev && b1.st_ino == b2.st_ino);
+
+ /* all other cases */
+ case TO_NONOP:
+ case TO_NONNULL:
+ /* throw the error */
+ break;
+ }
+ (*te->error)(te, 0, "internal error: unknown op");
+ return (1);
+}
+
+int
+test_parse(Test_env *te)
+{
+ int rv;
+
+ rv = test_oexpr(te, 1);
+
+ if (!(te->flags & TEF_ERROR) && !(*te->isa)(te, TM_END))
+ (*te->error)(te, 0, "unexpected operator/operand");
+
+ return ((te->flags & TEF_ERROR) ? T_ERR_EXIT : !rv);
+}
+
+static int
+test_oexpr(Test_env *te, bool do_eval)
+{
+ int rv;
+
+ if ((rv = test_aexpr(te, do_eval)))
+ do_eval = false;
+ if (!(te->flags & TEF_ERROR) && (*te->isa)(te, TM_OR))
+ return (test_oexpr(te, do_eval) || rv);
+ return (rv);
+}
+
+static int
+test_aexpr(Test_env *te, bool do_eval)
+{
+ int rv;
+
+ if (!(rv = test_nexpr(te, do_eval)))
+ do_eval = false;
+ if (!(te->flags & TEF_ERROR) && (*te->isa)(te, TM_AND))
+ return (test_aexpr(te, do_eval) && rv);
+ return (rv);
+}
+
+static int
+test_nexpr(Test_env *te, bool do_eval)
+{
+ if (!(te->flags & TEF_ERROR) && (*te->isa)(te, TM_NOT))
+ return (!test_nexpr(te, do_eval));
+ return (test_primary(te, do_eval));
+}
+
+static int
+test_primary(Test_env *te, bool do_eval)
+{
+ const char *opnd1, *opnd2;
+ int rv;
+ Test_op op;
+
+ if (te->flags & TEF_ERROR)
+ return (0);
+ if ((*te->isa)(te, TM_OPAREN)) {
+ rv = test_oexpr(te, do_eval);
+ if (te->flags & TEF_ERROR)
+ return (0);
+ if (!(*te->isa)(te, TM_CPAREN)) {
+ (*te->error)(te, 0, "missing )");
+ return (0);
+ }
+ return (rv);
+ }
+ /*
+ * Binary should have precedence over unary in this case
+ * so that something like test \( -f = -f \) is accepted
+ */
+ if ((te->flags & TEF_DBRACKET) || (&te->pos.wp[1] < te->wp_end &&
+ !test_isop(TM_BINOP, te->pos.wp[1]))) {
+ if ((op = (*te->isa)(te, TM_UNOP))) {
+ /* unary expression */
+ opnd1 = (*te->getopnd)(te, op, do_eval);
+ if (!opnd1) {
+ (*te->error)(te, -1, "missing argument");
+ return (0);
+ }
+
+ return ((*te->eval)(te, op, opnd1, NULL, do_eval));
+ }
+ }
+ opnd1 = (*te->getopnd)(te, TO_NONOP, do_eval);
+ if (!opnd1) {
+ (*te->error)(te, 0, "expression expected");
+ return (0);
+ }
+ if ((op = (*te->isa)(te, TM_BINOP))) {
+ /* binary expression */
+ opnd2 = (*te->getopnd)(te, op, do_eval);
+ if (!opnd2) {
+ (*te->error)(te, -1, "missing second argument");
+ return (0);
+ }
+
+ return ((*te->eval)(te, op, opnd1, opnd2, do_eval));
+ }
+ return ((*te->eval)(te, TO_STNZE, opnd1, NULL, do_eval));
+}
+
+/*
+ * Plain test (test and [ .. ]) specific routines.
+ */
+
+/*
+ * Test if the current token is a whatever. Accepts the current token if
+ * it is. Returns 0 if it is not, non-zero if it is (in the case of
+ * TM_UNOP and TM_BINOP, the returned value is a Test_op).
+ */
+static Test_op
+ptest_isa(Test_env *te, Test_meta meta)
+{
+ /* Order important - indexed by Test_meta values */
+ static const char * const tokens[] = {
+ "-o", "-a", "!", "(", ")"
+ };
+ Test_op rv;
+
+ if (te->pos.wp >= te->wp_end)
+ return (meta == TM_END ? TO_NONNULL : TO_NONOP);
+
+ if (meta == TM_UNOP || meta == TM_BINOP)
+ rv = test_isop(meta, *te->pos.wp);
+ else if (meta == TM_END)
+ rv = TO_NONOP;
+ else
+ rv = !strcmp(*te->pos.wp, tokens[(int)meta]) ?
+ TO_NONNULL : TO_NONOP;
+
+ /* Accept the token? */
+ if (rv != TO_NONOP)
+ te->pos.wp++;
+
+ return (rv);
+}
+
+static const char *
+ptest_getopnd(Test_env *te, Test_op op, bool do_eval MKSH_A_UNUSED)
+{
+ if (te->pos.wp >= te->wp_end)
+ return (op == TO_FILTT ? "1" : NULL);
+ return (*te->pos.wp++);
+}
+
+static void
+ptest_error(Test_env *te, int ofs, const char *msg)
+{
+ const char *op;
+
+ te->flags |= TEF_ERROR;
+ if ((op = te->pos.wp + ofs >= te->wp_end ? NULL : te->pos.wp[ofs]))
+ bi_errorf("%s: %s", op, msg);
+ else
+ bi_errorf("%s", msg);
+}
+
+#ifndef MKSH_NO_LIMITS
+#define SOFT 0x1
+#define HARD 0x2
+
+/* Magic to divine the 'm' and 'v' limits */
+
+#ifdef RLIMIT_AS
+#if !defined(RLIMIT_VMEM) || (RLIMIT_VMEM == RLIMIT_AS) || \
+ !defined(RLIMIT_RSS) || (RLIMIT_VMEM == RLIMIT_RSS)
+#define ULIMIT_V_IS_AS
+#elif defined(RLIMIT_VMEM)
+#if !defined(RLIMIT_RSS) || (RLIMIT_RSS == RLIMIT_AS)
+#define ULIMIT_V_IS_AS
+#else
+#define ULIMIT_V_IS_VMEM
+#endif
+#endif
+#endif
+
+#ifdef RLIMIT_RSS
+#ifdef ULIMIT_V_IS_VMEM
+#define ULIMIT_M_IS_RSS
+#elif defined(RLIMIT_VMEM) && (RLIMIT_VMEM == RLIMIT_RSS)
+#define ULIMIT_M_IS_VMEM
+#else
+#define ULIMIT_M_IS_RSS
+#endif
+#if defined(ULIMIT_M_IS_RSS) && defined(RLIMIT_AS) && (RLIMIT_RSS == RLIMIT_AS)
+#undef ULIMIT_M_IS_RSS
+#endif
+#endif
+
+#if !defined(RLIMIT_AS) && !defined(ULIMIT_M_IS_VMEM) && defined(RLIMIT_VMEM)
+#define ULIMIT_V_IS_VMEM
+#endif
+
+#if !defined(ULIMIT_V_IS_VMEM) && defined(RLIMIT_VMEM) && \
+ (!defined(RLIMIT_RSS) || (defined(RLIMIT_AS) && (RLIMIT_RSS == RLIMIT_AS)))
+#define ULIMIT_M_IS_VMEM
+#endif
+
+#if defined(ULIMIT_M_IS_VMEM) && defined(RLIMIT_AS) && \
+ (RLIMIT_VMEM == RLIMIT_AS)
+#undef ULIMIT_M_IS_VMEM
+#endif
+
+#if defined(ULIMIT_M_IS_RSS) && defined(ULIMIT_M_IS_VMEM)
+# error nonsensical m ulimit
+#endif
+
+#if defined(ULIMIT_V_IS_VMEM) && defined(ULIMIT_V_IS_AS)
+# error nonsensical v ulimit
+#endif
+
+#define RLIMITS_DEFNS
+#include "rlimits.gen"
+
+static void print_ulimit(const struct limits *, int);
+static int set_ulimit(const struct limits *, const char *, int);
+
+static const struct limits * const rlimits[] = {
+#define RLIMITS_ITEMS
+#include "rlimits.gen"
+};
+
+static const char rlimits_opts[] =
+#define RLIMITS_OPTCS
+#include "rlimits.gen"
+ ;
+
+int
+c_ulimit(const char **wp)
+{
+ size_t i = 0;
+ int how = SOFT | HARD, optc, what = 'f';
+ bool all = false;
+
+ while ((optc = ksh_getopt(wp, &builtin_opt, rlimits_opts)) != -1)
+ switch (optc) {
+ case 'H':
+ how = HARD;
+ break;
+ case 'S':
+ how = SOFT;
+ break;
+ case 'a':
+ all = true;
+ break;
+ case '?':
+ bi_errorf("usage: ulimit [-%s] [value]", rlimits_opts);
+ return (1);
+ default:
+ what = optc;
+ }
+
+ while (i < NELEM(rlimits)) {
+ if (rlimits[i]->optchar == what)
+ goto found;
+ ++i;
+ }
+ internal_warningf("ulimit: %c", what);
+ return (1);
+ found:
+ if (wp[builtin_opt.optind]) {
+ if (all || wp[builtin_opt.optind + 1]) {
+ bi_errorf("too many arguments");
+ return (1);
+ }
+ return (set_ulimit(rlimits[i], wp[builtin_opt.optind], how));
+ }
+ if (!all)
+ print_ulimit(rlimits[i], how);
+ else for (i = 0; i < NELEM(rlimits); ++i) {
+ shprintf("%-20s ", rlimits[i]->name);
+ print_ulimit(rlimits[i], how);
+ }
+ return (0);
+}
+
+static int
+set_ulimit(const struct limits *l, const char *v, int how)
+{
+ rlim_t val = (rlim_t)0;
+ struct rlimit limit;
+
+ if (strcmp(v, "unlimited") == 0)
+ val = (rlim_t)RLIM_INFINITY;
+ else {
+ mksh_uari_t rval;
+
+ if (!evaluate(v, (mksh_ari_t *)&rval, KSH_RETURN_ERROR, false))
+ return (1);
+ /*
+ * Avoid problems caused by typos that evaluate misses due
+ * to evaluating unset parameters to 0...
+ * If this causes problems, will have to add parameter to
+ * evaluate() to control if unset params are 0 or an error.
+ */
+ if (!rval && !ksh_isdigit(v[0])) {
+ bi_errorf("invalid %s limit: %s", l->name, v);
+ return (1);
+ }
+ val = (rlim_t)((rlim_t)rval * l->factor);
+ }
+
+ if (getrlimit(l->resource, &limit) < 0) {
+#ifndef MKSH_SMALL
+ bi_errorf("limit %s could not be read, contact the mksh developers: %s",
+ l->name, cstrerror(errno));
+#endif
+ /* some can't be read */
+ limit.rlim_cur = RLIM_INFINITY;
+ limit.rlim_max = RLIM_INFINITY;
+ }
+ if (how & SOFT)
+ limit.rlim_cur = val;
+ if (how & HARD)
+ limit.rlim_max = val;
+ if (!setrlimit(l->resource, &limit))
+ return (0);
+ if (errno == EPERM)
+ bi_errorf("%s exceeds allowable %s limit", v, l->name);
+ else
+ bi_errorf("bad %s limit: %s", l->name, cstrerror(errno));
+ return (1);
+}
+
+static void
+print_ulimit(const struct limits *l, int how)
+{
+ rlim_t val = (rlim_t)0;
+ struct rlimit limit;
+
+ if (getrlimit(l->resource, &limit)) {
+ shf_puts("unknown\n", shl_stdout);
+ return;
+ }
+ if (how & SOFT)
+ val = limit.rlim_cur;
+ else if (how & HARD)
+ val = limit.rlim_max;
+ if (val == (rlim_t)RLIM_INFINITY)
+ shf_puts("unlimited\n", shl_stdout);
+ else
+ shprintf("%lu\n", (unsigned long)(val / l->factor));
+}
+#endif
+
+int
+c_rename(const char **wp)
+{
+ int rv = 1;
+
+ /* skip argv[0] */
+ ++wp;
+ if (wp[0] && !strcmp(wp[0], "--"))
+ /* skip "--" (options separator) */
+ ++wp;
+
+ /* check for exactly two arguments */
+ if (wp[0] == NULL /* first argument */ ||
+ wp[1] == NULL /* second argument */ ||
+ wp[2] != NULL /* no further args please */)
+ bi_errorf(Tsynerr);
+ else if ((rv = rename(wp[0], wp[1])) != 0) {
+ rv = errno;
+ bi_errorf("%s: %s", "failed", cstrerror(rv));
+ }
+
+ return (rv);
+}
+
+int
+c_realpath(const char **wp)
+{
+ int rv = 1;
+ char *buf;
+
+ /* skip argv[0] */
+ ++wp;
+ if (wp[0] && !strcmp(wp[0], "--"))
+ /* skip "--" (options separator) */
+ ++wp;
+
+ /* check for exactly one argument */
+ if (wp[0] == NULL || wp[1] != NULL)
+ bi_errorf(Tsynerr);
+ else if ((buf = do_realpath(wp[0])) == NULL) {
+ rv = errno;
+ bi_errorf("%s: %s", wp[0], cstrerror(rv));
+ if ((unsigned int)rv > 255)
+ rv = 255;
+ } else {
+ shprintf("%s\n", buf);
+ afree(buf, ATEMP);
+ rv = 0;
+ }
+
+ return (rv);
+}
+
+int
+c_cat(const char **wp)
+{
+ int fd = STDIN_FILENO, rv, eno;
+ ssize_t n, w;
+ const char *fn = "<stdin>";
+ char *buf, *cp;
+#define MKSH_CAT_BUFSIZ 4096
+
+ /* parse options: POSIX demands we support "-u" as no-op */
+ while ((rv = ksh_getopt(wp, &builtin_opt, "u")) != -1) {
+ switch (rv) {
+ case 'u':
+ /* we already operate unbuffered */
+ break;
+ default:
+ bi_errorf(Tsynerr);
+ return (1);
+ }
+ }
+ wp += builtin_opt.optind;
+ rv = 0;
+
+ if ((buf = malloc_osfunc(MKSH_CAT_BUFSIZ)) == NULL) {
+ bi_errorf(Toomem, (size_t)MKSH_CAT_BUFSIZ);
+ return (1);
+ }
+
+ do {
+ if (*wp) {
+ fn = *wp++;
+ if (fn[0] == '-' && fn[1] == '\0')
+ fd = STDIN_FILENO;
+ else if ((fd = open(fn, O_RDONLY | O_BINARY)) < 0) {
+ eno = errno;
+ bi_errorf("%s: %s", fn, cstrerror(eno));
+ rv = 1;
+ continue;
+ }
+ }
+ while (/* CONSTCOND */ 1) {
+ n = blocking_read(fd, (cp = buf), MKSH_CAT_BUFSIZ);
+ eno = errno;
+ /* give the user a chance to ^C out */
+ intrcheck();
+ if (n == -1) {
+ if (eno == EINTR) {
+ /* interrupted, try again */
+ continue;
+ }
+ /* an error occured during reading */
+ bi_errorf("%s: %s", fn, cstrerror(eno));
+ rv = 1;
+ break;
+ } else if (n == 0)
+ /* end of file reached */
+ break;
+ while (n) {
+ w = write(STDOUT_FILENO, cp, n);
+ if (w == -1) {
+ if (errno == EINTR)
+ /* interrupted, try again */
+ continue;
+ /* an error occured during writing */
+ eno = errno;
+ bi_errorf("%s: %s", "<stdout>",
+ cstrerror(eno));
+ rv = 1;
+ if (fd != STDIN_FILENO)
+ close(fd);
+ goto out;
+ }
+ n -= w;
+ cp += w;
+ }
+ }
+ if (fd != STDIN_FILENO)
+ close(fd);
+ } while (*wp);
+
+ out:
+ free_osfunc(buf);
+ return (rv);
+}
+
+#if HAVE_SELECT
+int
+c_sleep(const char **wp)
+{
+ struct timeval tv;
+ int rv = 1;
+
+ /* skip argv[0] */
+ ++wp;
+ if (wp[0] && !strcmp(wp[0], "--"))
+ /* skip "--" (options separator) */
+ ++wp;
+
+ if (!wp[0] || wp[1])
+ bi_errorf(Tsynerr);
+ else if (parse_usec(wp[0], &tv))
+ bi_errorf("%s: %s '%s'", Tsynerr, cstrerror(errno), wp[0]);
+ else {
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigset_t omask, bmask;
+
+ /* block a number of signals from interrupting us, though */
+ (void)sigemptyset(&bmask);
+ (void)sigaddset(&bmask, SIGPIPE);
+ (void)sigaddset(&bmask, SIGCHLD);
+#ifdef SIGWINCH
+ (void)sigaddset(&bmask, SIGWINCH);
+#endif
+#ifdef SIGINFO
+ (void)sigaddset(&bmask, SIGINFO);
+#endif
+#ifdef SIGUSR1
+ (void)sigaddset(&bmask, SIGUSR1);
+#endif
+#ifdef SIGUSR2
+ (void)sigaddset(&bmask, SIGUSR2);
+#endif
+ sigprocmask(SIG_BLOCK, &bmask, &omask);
+#endif
+ if (select(1, NULL, NULL, NULL, &tv) == 0 || errno == EINTR)
+ /*
+ * strictly speaking only for SIGALRM, but the
+ * execution may be interrupted by other signals
+ */
+ rv = 0;
+ else
+ bi_errorf("%s: %s", Tselect, cstrerror(errno));
+#ifndef MKSH_NOPROSPECTOFWORK
+ /* this will re-schedule signal delivery */
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+ }
+ return (rv);
+}
+#endif
+
+#if !defined(MKSH_UNEMPLOYED) && HAVE_GETSID
+static int
+c_suspend(const char **wp)
+{
+ if (wp[1] != NULL) {
+ bi_errorf("too many arguments");
+ return (1);
+ }
+ if (Flag(FLOGIN)) {
+ /* Can't suspend an orphaned process group. */
+ if (getpgid(kshppid) == getpgid(0) ||
+ getsid(kshppid) != getsid(0)) {
+ bi_errorf("can't suspend a login shell");
+ return (1);
+ }
+ }
+ j_suspend();
+ return (0);
+}
+#endif
Deleted: vendor/MirOS/mksh/R50/histrap.c
===================================================================
--- vendor/MirOS/mksh/dist/histrap.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/histrap.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1512 +0,0 @@
-/* $OpenBSD: history.c,v 1.39 2010/05/19 17:36:08 jasper Exp $ */
-/* $OpenBSD: trap.c,v 1.23 2010/05/19 17:36:08 jasper Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- * 2011, 2012
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-#if HAVE_SYS_FILE_H
-#include <sys/file.h>
-#endif
-
-__RCSID("$MirOS: src/bin/mksh/histrap.c,v 1.131 2012/12/28 02:28:35 tg Exp $");
-
-Trap sigtraps[NSIG + 1];
-static struct sigaction Sigact_ign;
-
-#if HAVE_PERSISTENT_HISTORY
-static int histload(Source *, unsigned char *, size_t);
-static int writehistline(int, int, const char *);
-static void writehistfile(int, const char *);
-#endif
-
-static int hist_execute(char *);
-static char **hist_get(const char *, bool, bool);
-static char **hist_get_oldest(void);
-
-static bool hstarted; /* set after hist_init() called */
-static Source *hist_source;
-
-#if HAVE_PERSISTENT_HISTORY
-/*XXX imake style */
-#if defined(__linux)
-#define caddr_cast(x) ((void *)(x))
-#else
-#define caddr_cast(x) ((caddr_t)(x))
-#endif
-
-/* several OEs do not have these constants */
-#ifndef MAP_FAILED
-#define MAP_FAILED caddr_cast(-1)
-#endif
-
-/* some OEs need the default mapping type specified */
-#ifndef MAP_FILE
-#define MAP_FILE 0
-#endif
-
-/* current history file: name, fd, size */
-static char *hname;
-static int histfd = -1;
-static off_t histfsize;
-#endif
-
-static const char Tnot_in_history[] = "not in history";
-#define Thistory (Tnot_in_history + 7)
-
-static const char TFCEDIT_dollaru[] = "${FCEDIT:-/bin/ed} $_";
-#define Tspdollaru (TFCEDIT_dollaru + 18)
-
-/* HISTSIZE default: size of saved history, persistent or standard */
-#ifdef MKSH_SMALL
-#define MKSH_DEFHISTSIZE 255
-#else
-#define MKSH_DEFHISTSIZE 2047
-#endif
-/* maximum considered size of persistent history file */
-#define MKSH_MAXHISTFSIZE ((off_t)1048576 * 96)
-
-int
-c_fc(const char **wp)
-{
- struct shf *shf;
- struct temp *tf;
- bool gflag = false, lflag = false, nflag = false, rflag = false,
- sflag = false;
- int optc;
- const char *p, *first = NULL, *last = NULL;
- char **hfirst, **hlast, **hp, *editor = NULL;
-
- if (!Flag(FTALKING_I)) {
- bi_errorf("history %ss not available", Tfunction);
- return (1);
- }
-
- while ((optc = ksh_getopt(wp, &builtin_opt,
- "e:glnrs0,1,2,3,4,5,6,7,8,9,")) != -1)
- switch (optc) {
-
- case 'e':
- p = builtin_opt.optarg;
- if (ksh_isdash(p))
- sflag = true;
- else {
- size_t len = strlen(p);
-
- /* almost certainly not overflowing */
- editor = alloc(len + 4, ATEMP);
- memcpy(editor, p, len);
- memcpy(editor + len, Tspdollaru, 4);
- }
- break;
-
- /* non-AT&T ksh */
- case 'g':
- gflag = true;
- break;
-
- case 'l':
- lflag = true;
- break;
-
- case 'n':
- nflag = true;
- break;
-
- case 'r':
- rflag = true;
- break;
-
- /* POSIX version of -e - */
- case 's':
- sflag = true;
- break;
-
- /* kludge city - accept -num as -- -num (kind of) */
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- p = shf_smprintf("-%c%s",
- optc, builtin_opt.optarg);
- if (!first)
- first = p;
- else if (!last)
- last = p;
- else {
- bi_errorf("too many arguments");
- return (1);
- }
- break;
-
- case '?':
- return (1);
- }
- wp += builtin_opt.optind;
-
- /* Substitute and execute command */
- if (sflag) {
- char *pat = NULL, *rep = NULL, *line;
-
- if (editor || lflag || nflag || rflag) {
- bi_errorf("can't use -e, -l, -n, -r with -s (-e -)");
- return (1);
- }
-
- /* Check for pattern replacement argument */
- if (*wp && **wp && (p = cstrchr(*wp + 1, '='))) {
- strdupx(pat, *wp, ATEMP);
- rep = pat + (p - *wp);
- *rep++ = '\0';
- wp++;
- }
- /* Check for search prefix */
- if (!first && (first = *wp))
- wp++;
- if (last || *wp) {
- bi_errorf("too many arguments");
- return (1);
- }
-
- hp = first ? hist_get(first, false, false) :
- hist_get_newest(false);
- if (!hp)
- return (1);
- /* hist_replace */
- if (!pat)
- strdupx(line, *hp, ATEMP);
- else {
- char *s, *s1;
- size_t len, pat_len, rep_len;
- XString xs;
- char *xp;
- bool any_subst = false;
-
- pat_len = strlen(pat);
- rep_len = strlen(rep);
- Xinit(xs, xp, 128, ATEMP);
- for (s = *hp; (s1 = strstr(s, pat)) &&
- (!any_subst || gflag); s = s1 + pat_len) {
- any_subst = true;
- len = s1 - s;
- XcheckN(xs, xp, len + rep_len);
- /*; first part */
- memcpy(xp, s, len);
- xp += len;
- /* replacement */
- memcpy(xp, rep, rep_len);
- xp += rep_len;
- }
- if (!any_subst) {
- bi_errorf("bad substitution");
- return (1);
- }
- len = strlen(s) + 1;
- XcheckN(xs, xp, len);
- memcpy(xp, s, len);
- xp += len;
- line = Xclose(xs, xp);
- }
- return (hist_execute(line));
- }
-
- if (editor && (lflag || nflag)) {
- bi_errorf("can't use -l, -n with -e");
- return (1);
- }
-
- if (!first && (first = *wp))
- wp++;
- if (!last && (last = *wp))
- wp++;
- if (*wp) {
- bi_errorf("too many arguments");
- return (1);
- }
- if (!first) {
- hfirst = lflag ? hist_get("-16", true, true) :
- hist_get_newest(false);
- if (!hfirst)
- return (1);
- /* can't fail if hfirst didn't fail */
- hlast = hist_get_newest(false);
- } else {
- /*
- * POSIX says not an error if first/last out of bounds
- * when range is specified; AT&T ksh and pdksh allow out
- * of bounds for -l as well.
- */
- hfirst = hist_get(first, tobool(lflag || last), lflag);
- if (!hfirst)
- return (1);
- hlast = last ? hist_get(last, true, lflag) :
- (lflag ? hist_get_newest(false) : hfirst);
- if (!hlast)
- return (1);
- }
- if (hfirst > hlast) {
- char **temp;
-
- temp = hfirst; hfirst = hlast; hlast = temp;
- /* POSIX */
- rflag = !rflag;
- }
-
- /* List history */
- if (lflag) {
- char *s, *t;
-
- for (hp = rflag ? hlast : hfirst;
- hp >= hfirst && hp <= hlast; hp += rflag ? -1 : 1) {
- if (!nflag)
- shf_fprintf(shl_stdout, "%d",
- hist_source->line - (int)(histptr - hp));
- shf_putc('\t', shl_stdout);
- /* print multi-line commands correctly */
- s = *hp;
- while ((t = strchr(s, '\n'))) {
- *t = '\0';
- shf_fprintf(shl_stdout, "%s\n\t", s);
- *t++ = '\n';
- s = t;
- }
- shf_fprintf(shl_stdout, "%s\n", s);
- }
- shf_flush(shl_stdout);
- return (0);
- }
-
- /* Run editor on selected lines, then run resulting commands */
-
- tf = maketemp(ATEMP, TT_HIST_EDIT, &e->temps);
- if (!(shf = tf->shf)) {
- bi_errorf("can't %s temporary file %s: %s",
- "create", tf->tffn, cstrerror(errno));
- return (1);
- }
- for (hp = rflag ? hlast : hfirst;
- hp >= hfirst && hp <= hlast; hp += rflag ? -1 : 1)
- shf_fprintf(shf, "%s\n", *hp);
- if (shf_close(shf) == EOF) {
- bi_errorf("can't %s temporary file %s: %s",
- "write", tf->tffn, cstrerror(errno));
- return (1);
- }
-
- /* Ignore setstr errors here (arbitrary) */
- setstr(local("_", false), tf->tffn, KSH_RETURN_ERROR);
-
- /* XXX: source should not get trashed by this.. */
- {
- Source *sold = source;
- int ret;
-
- ret = command(editor ? editor : TFCEDIT_dollaru, 0);
- source = sold;
- if (ret)
- return (ret);
- }
-
- {
- struct stat statb;
- XString xs;
- char *xp;
- ssize_t n;
-
- if (!(shf = shf_open(tf->tffn, O_RDONLY, 0, 0))) {
- bi_errorf("can't %s temporary file %s: %s",
- "open", tf->tffn, cstrerror(errno));
- return (1);
- }
-
- if (stat(tf->tffn, &statb) < 0)
- n = 128;
- else if ((off_t)statb.st_size > MKSH_MAXHISTFSIZE) {
- bi_errorf("%s %s too large: %lu", Thistory,
- "file", (unsigned long)statb.st_size);
- goto errout;
- } else
- n = (size_t)statb.st_size + 1;
- Xinit(xs, xp, n, hist_source->areap);
- while ((n = shf_read(xp, Xnleft(xs, xp), shf)) > 0) {
- xp += n;
- if (Xnleft(xs, xp) <= 0)
- XcheckN(xs, xp, Xlength(xs, xp));
- }
- if (n < 0) {
- bi_errorf("can't %s temporary file %s: %s",
- "read", tf->tffn, cstrerror(shf_errno(shf)));
- errout:
- shf_close(shf);
- return (1);
- }
- shf_close(shf);
- *xp = '\0';
- strip_nuls(Xstring(xs, xp), Xlength(xs, xp));
- return (hist_execute(Xstring(xs, xp)));
- }
-}
-
-/* Save cmd in history, execute cmd (cmd gets trashed) */
-static int
-hist_execute(char *cmd)
-{
- static int last_line = -1;
- Source *sold;
- int ret;
- char *p, *q;
-
- /* Back up over last histsave */
- if (histptr >= history && last_line != hist_source->line) {
- hist_source->line--;
- afree(*histptr, APERM);
- histptr--;
- last_line = hist_source->line;
- }
-
- for (p = cmd; p; p = q) {
- if ((q = strchr(p, '\n'))) {
- /* kill the newline */
- *q++ = '\0';
- if (!*q)
- /* ignore trailing newline */
- q = NULL;
- }
- histsave(&hist_source->line, p, true, true);
-
- /* POSIX doesn't say this is done... */
- shellf("%s\n", p);
- if (q)
- /* restore \n (trailing \n not restored) */
- q[-1] = '\n';
- }
-
- /*-
- * Commands are executed here instead of pushing them onto the
- * input 'cause POSIX says the redirection and variable assignments
- * in
- * X=y fc -e - 42 2> /dev/null
- * are to effect the repeated commands environment.
- */
- /* XXX: source should not get trashed by this.. */
- sold = source;
- ret = command(cmd, 0);
- source = sold;
- return (ret);
-}
-
-/*
- * get pointer to history given pattern
- * pattern is a number or string
- */
-static char **
-hist_get(const char *str, bool approx, bool allow_cur)
-{
- char **hp = NULL;
- int n;
-
- if (getn(str, &n)) {
- hp = histptr + (n < 0 ? n : (n - hist_source->line));
- if ((ptrdiff_t)hp < (ptrdiff_t)history) {
- if (approx)
- hp = hist_get_oldest();
- else {
- bi_errorf("%s: %s", str, Tnot_in_history);
- hp = NULL;
- }
- } else if ((ptrdiff_t)hp > (ptrdiff_t)histptr) {
- if (approx)
- hp = hist_get_newest(allow_cur);
- else {
- bi_errorf("%s: %s", str, Tnot_in_history);
- hp = NULL;
- }
- } else if (!allow_cur && hp == histptr) {
- bi_errorf("%s: %s", str, "invalid range");
- hp = NULL;
- }
- } else {
- int anchored = *str == '?' ? (++str, 0) : 1;
-
- /* the -1 is to avoid the current fc command */
- if ((n = findhist(histptr - history - 1, 0, str, anchored)) < 0)
- bi_errorf("%s: %s", str, Tnot_in_history);
- else
- hp = &history[n];
- }
- return (hp);
-}
-
-/* Return a pointer to the newest command in the history */
-char **
-hist_get_newest(bool allow_cur)
-{
- if (histptr < history || (!allow_cur && histptr == history)) {
- bi_errorf("no history (yet)");
- return (NULL);
- }
- return (allow_cur ? histptr : histptr - 1);
-}
-
-/* Return a pointer to the oldest command in the history */
-static char **
-hist_get_oldest(void)
-{
- if (histptr <= history) {
- bi_errorf("no history (yet)");
- return (NULL);
- }
- return (history);
-}
-
-#if !defined(MKSH_NO_CMDLINE_EDITING) && !MKSH_S_NOVI
-/* current position in history[] */
-static char **current;
-
-/*
- * Return the current position.
- */
-char **
-histpos(void)
-{
- return (current);
-}
-
-int
-histnum(int n)
-{
- int last = histptr - history;
-
- if (n < 0 || n >= last) {
- current = histptr;
- return (last);
- } else {
- current = &history[n];
- return (n);
- }
-}
-#endif
-
-/*
- * This will become unnecessary if hist_get is modified to allow
- * searching from positions other than the end, and in either
- * direction.
- */
-int
-findhist(int start, int fwd, const char *str, int anchored)
-{
- char **hp;
- int maxhist = histptr - history;
- int incr = fwd ? 1 : -1;
- size_t len = strlen(str);
-
- if (start < 0 || start >= maxhist)
- start = maxhist;
-
- hp = &history[start];
- for (; hp >= history && hp <= histptr; hp += incr)
- if ((anchored && strncmp(*hp, str, len) == 0) ||
- (!anchored && strstr(*hp, str)))
- return (hp - history);
-
- return (-1);
-}
-
-/*
- * set history; this means reallocating the dataspace
- */
-void
-sethistsize(mksh_ari_t n)
-{
- if (n > 0 && n != histsize) {
- int cursize = histptr - history;
-
- /* save most recent history */
- if (n < cursize) {
- memmove(history, histptr - n + 1, n * sizeof(char *));
- cursize = n - 1;
- }
-
- history = aresize2(history, n, sizeof(char *), APERM);
-
- histsize = n;
- histptr = history + cursize;
- }
-}
-
-#if HAVE_PERSISTENT_HISTORY
-/*
- * set history file; this can mean reloading/resetting/starting
- * history file maintenance
- */
-void
-sethistfile(const char *name)
-{
- /* if not started then nothing to do */
- if (hstarted == false)
- return;
-
- /* if the name is the same as the name we have */
- if (hname && strcmp(hname, name) == 0)
- return;
-
- /*
- * it's a new name - possibly
- */
- if (histfd != -1) {
- /* yes the file is open */
- (void)close(histfd);
- histfd = -1;
- histfsize = 0;
- afree(hname, APERM);
- hname = NULL;
- /* let's reset the history */
- histptr = history - 1;
- hist_source->line = 0;
- }
-
- hist_init(hist_source);
-}
-#endif
-
-/*
- * initialise the history vector
- */
-void
-init_histvec(void)
-{
- if (history == (char **)NULL) {
- histsize = MKSH_DEFHISTSIZE;
- history = alloc2(histsize, sizeof(char *), APERM);
- histptr = history - 1;
- }
-}
-
-
-/*
- * It turns out that there is a lot of ghastly hackery here
- */
-
-#if !defined(MKSH_SMALL) && HAVE_PERSISTENT_HISTORY
-/* do not save command in history but possibly sync */
-bool
-histsync(void)
-{
- bool changed = false;
-
- if (histfd != -1) {
- int lno = hist_source->line;
-
- hist_source->line++;
- writehistfile(0, NULL);
- hist_source->line--;
-
- if (lno != hist_source->line)
- changed = true;
- }
-
- return (changed);
-}
-#endif
-
-/*
- * save command in history
- */
-void
-histsave(int *lnp, const char *cmd, bool dowrite MKSH_A_UNUSED, bool ignoredups)
-{
- char **hp;
- char *c, *cp;
-
- mkssert(cmd != NULL);
- strdupx(c, cmd, APERM);
- if ((cp = strchr(c, '\n')) != NULL)
- *cp = '\0';
-
- if (ignoredups && !strcmp(c, *histptr)
-#if !defined(MKSH_SMALL) && HAVE_PERSISTENT_HISTORY
- && !histsync()
-#endif
- ) {
- afree(c, APERM);
- return;
- }
- ++*lnp;
-
-#if HAVE_PERSISTENT_HISTORY
- if (dowrite && histfd != -1)
- writehistfile(*lnp, c);
-#endif
-
- hp = histptr;
-
- if (++hp >= history + histsize) {
- /* remove oldest command */
- afree(*history, APERM);
- for (hp = history; hp < history + histsize - 1; hp++)
- hp[0] = hp[1];
- }
- *hp = c;
- histptr = hp;
-}
-
-/*
- * Write history data to a file nominated by HISTFILE;
- * if HISTFILE is unset then history still happens, but
- * the data is not written to a file. All copies of ksh
- * looking at the file will maintain the same history.
- * This is ksh behaviour.
- *
- * This stuff uses mmap()
- *
- * This stuff is so totally broken it must eventually be
- * redesigned, without mmap, better checks, support for
- * larger files, etc. and handle partially corrupted files
- */
-
-/*-
- * Open a history file
- * Format is:
- * Bytes 1, 2:
- * HMAGIC - just to check that we are dealing with the correct object
- * Then follows a number of stored commands
- * Each command is
- * <command byte><command number(4 octets, big endian)><bytes><NUL>
- */
-#define HMAGIC1 0xAB
-#define HMAGIC2 0xCD
-#define COMMAND 0xFF
-
-#if HAVE_PERSISTENT_HISTORY
-static const unsigned char sprinkle[2] = { HMAGIC1, HMAGIC2 };
-#endif
-
-void
-hist_init(Source *s)
-{
-#if HAVE_PERSISTENT_HISTORY
- unsigned char *base;
- int lines, fd;
- enum { hist_init_first, hist_init_retry, hist_init_restore } hs;
-#endif
-
- if (Flag(FTALKING) == 0)
- return;
-
- hstarted = true;
- hist_source = s;
-
-#if HAVE_PERSISTENT_HISTORY
- if ((hname = str_val(global("HISTFILE"))) == NULL)
- return;
- strdupx(hname, hname, APERM);
- hs = hist_init_first;
-
- retry:
- /* we have a file and are interactive */
- if ((fd = open(hname, O_RDWR | O_CREAT | O_APPEND, 0600)) < 0)
- return;
-
- histfd = savefd(fd);
- if (histfd != fd)
- close(fd);
-
- mksh_lockfd(histfd);
-
- histfsize = lseek(histfd, (off_t)0, SEEK_END);
- if (histfsize > MKSH_MAXHISTFSIZE || hs == hist_init_restore) {
- /* we ignore too large files but still append to them */
- /* we also don't need to re-read after truncation */
- goto hist_init_tail;
- } else if (histfsize > 2) {
- /* we have some data, check its validity */
- base = (void *)mmap(NULL, (size_t)histfsize, PROT_READ,
- MAP_FILE | MAP_PRIVATE, histfd, (off_t)0);
- if (base == (unsigned char *)MAP_FAILED)
- goto hist_init_fail;
- if (base[0] != HMAGIC1 || base[1] != HMAGIC2) {
- munmap(caddr_cast(base), (size_t)histfsize);
- goto hist_init_fail;
- }
- /* load _all_ data */
- lines = histload(hist_source, base + 2, (size_t)histfsize - 2);
- munmap(caddr_cast(base), (size_t)histfsize);
- /* check if the file needs to be truncated */
- if (lines > histsize && histptr >= history) {
- /* you're fucked up with the current code, trust me */
- char *nhname, **hp;
- struct stat sb;
-
- /* create temporary file */
- nhname = shf_smprintf("%s.%d", hname, (int)procpid);
- if ((fd = open(nhname, O_RDWR | O_CREAT | O_TRUNC |
- O_EXCL, 0600)) < 0) {
- /* just don't truncate then, meh. */
- goto hist_trunc_dont;
- }
- if (fstat(histfd, &sb) >= 0 &&
- chown(nhname, sb.st_uid, sb.st_gid)) {
- /* abort the truncation then, meh. */
- goto hist_trunc_abort;
- }
- /* we definitively want some magic in that file */
- if (write(fd, sprinkle, 2) != 2)
- goto hist_trunc_abort;
- /* and of course the entries */
- hp = history;
- while (hp < histptr) {
- if (!writehistline(fd,
- s->line - (histptr - hp), *hp))
- goto hist_trunc_abort;
- ++hp;
- }
- /* now unlock, close both, rename, rinse, repeat */
- close(fd);
- fd = -1;
- hist_finish();
- if (rename(nhname, hname) < 0) {
- hist_trunc_abort:
- if (fd != -1)
- close(fd);
- unlink(nhname);
- if (fd != -1)
- goto hist_trunc_dont;
- /* darn! restore histfd and pray */
- }
- hs = hist_init_restore;
- hist_trunc_dont:
- afree(nhname, ATEMP);
- if (hs == hist_init_restore)
- goto retry;
- }
- } else if (histfsize != 0) {
- /* negative or too small... */
- hist_init_fail:
- /* ... or mmap failed or illegal */
- hist_finish();
- /* nuke the bogus file then retry, at most once */
- if (!unlink(hname) && hs != hist_init_retry) {
- hs = hist_init_retry;
- goto retry;
- }
- if (hs != hist_init_retry)
- bi_errorf("can't %s %s: %s",
- "unlink HISTFILE", hname, cstrerror(errno));
- histfsize = 0;
- return;
- } else {
- /* size 0, add magic to the history file */
- if (write(histfd, sprinkle, 2) != 2) {
- hist_finish();
- return;
- }
- }
- histfsize = lseek(histfd, (off_t)0, SEEK_END);
- hist_init_tail:
- mksh_unlkfd(histfd);
-#endif
-}
-
-#if HAVE_PERSISTENT_HISTORY
-/*
- * load the history structure from the stored data
- */
-static int
-histload(Source *s, unsigned char *base, size_t bytes)
-{
- int lno = 0, lines = 0;
- unsigned char *cp;
-
- histload_loop:
- /* !bytes check as some systems (older FreeBSDs) have buggy memchr */
- if (!bytes || (cp = memchr(base, COMMAND, bytes)) == NULL)
- return (lines);
- /* advance base pointer past COMMAND byte */
- bytes -= ++cp - base;
- base = cp;
- /* if there is no full string left, don't bother with the rest */
- if (bytes < 5 || (cp = memchr(base + 4, '\0', bytes - 4)) == NULL)
- return (lines);
- /* load the stored line number */
- lno = ((base[0] & 0xFF) << 24) | ((base[1] & 0xFF) << 16) |
- ((base[2] & 0xFF) << 8) | (base[3] & 0xFF);
- /* store away the found line (@base[4]) */
- ++lines;
- if (histptr >= history && lno - 1 != s->line) {
- /* a replacement? */
- char **hp;
-
- if (lno >= s->line - (histptr - history) && lno <= s->line) {
- hp = &histptr[lno - s->line];
- if (*hp)
- afree(*hp, APERM);
- strdupx(*hp, (char *)(base + 4), APERM);
- }
- } else {
- s->line = lno--;
- histsave(&lno, (char *)(base + 4), false, false);
- }
- /* advance base pointer past NUL */
- bytes -= ++cp - base;
- base = cp;
- /* repeat until no more */
- goto histload_loop;
-}
-
-/*
- * write a command to the end of the history file
- *
- * This *MAY* seem easy but it's also necessary to check
- * that the history file has not changed in size.
- * If it has - then some other shell has written to it and
- * we should (re)read those commands to update our history
- */
-static void
-writehistfile(int lno, const char *cmd)
-{
- off_t sizenow;
- size_t bytes;
- unsigned char *base, *news;
-
- mksh_lockfd(histfd);
- sizenow = lseek(histfd, (off_t)0, SEEK_END);
- if (sizenow < histfsize) {
- /* the file has shrunk; give up */
- goto bad;
- }
- if (
- /* ignore changes when the file is too large */
- sizenow <= MKSH_MAXHISTFSIZE
- &&
- /* the size has changed, we need to do read updates */
- sizenow > histfsize
- ) {
- /* both sizenow and histfsize are <= MKSH_MAXHISTFSIZE */
- bytes = (size_t)(sizenow - histfsize);
- base = (void *)mmap(NULL, (size_t)sizenow, PROT_READ,
- MAP_FILE | MAP_PRIVATE, histfd, (off_t)0);
- if (base == (unsigned char *)MAP_FAILED)
- goto bad;
- news = base + (size_t)histfsize;
- if (*news == COMMAND) {
- hist_source->line--;
- histload(hist_source, news, bytes);
- hist_source->line++;
- lno = hist_source->line;
- } else
- bytes = 0;
- munmap(caddr_cast(base), (size_t)sizenow);
- if (!bytes)
- goto bad;
- }
- if (cmd && !writehistline(histfd, lno, cmd)) {
- bad:
- hist_finish();
- return;
- }
- histfsize = lseek(histfd, (off_t)0, SEEK_END);
- mksh_unlkfd(histfd);
-}
-
-static int
-writehistline(int fd, int lno, const char *cmd)
-{
- ssize_t n;
- unsigned char hdr[5];
-
- hdr[0] = COMMAND;
- hdr[1] = (lno >> 24) & 0xFF;
- hdr[2] = (lno >> 16) & 0xFF;
- hdr[3] = (lno >> 8) & 0xFF;
- hdr[4] = lno & 0xFF;
- n = strlen(cmd) + 1;
- return (write(fd, hdr, 5) == 5 && write(fd, cmd, n) == n);
-}
-
-void
-hist_finish(void)
-{
- if (histfd >= 0) {
- mksh_unlkfd(histfd);
- (void)close(histfd);
- }
- histfd = -1;
-}
-#endif
-
-
-#if !HAVE_SYS_SIGNAME
-static const struct mksh_sigpair {
- const char * const name;
- int nr;
-} mksh_sigpairs[] = {
-#include "signames.inc"
- { NULL, 0 }
-};
-#endif
-
-#if HAVE_SYS_SIGLIST
-#if !HAVE_SYS_SIGLIST_DECL
-extern const char * const sys_siglist[];
-#endif
-#endif
-
-void
-inittraps(void)
-{
- int i;
- const char *cs;
-
- trap_exstat = -1;
-
- /* Populate sigtraps based on sys_signame and sys_siglist. */
- for (i = 0; i <= NSIG; i++) {
- sigtraps[i].signal = i;
- if (i == ksh_SIGERR) {
- sigtraps[i].name = "ERR";
- sigtraps[i].mess = "Error handler";
- } else {
-#if HAVE_SYS_SIGNAME
- cs = sys_signame[i];
-#else
- const struct mksh_sigpair *pair = mksh_sigpairs;
- while ((pair->nr != i) && (pair->name != NULL))
- ++pair;
- cs = pair->name;
-#endif
- if ((cs == NULL) ||
- (cs[0] == '\0'))
- sigtraps[i].name = shf_smprintf("%d", i);
- else {
- char *s;
-
- /* this is not optimal, what about SIGSIG1? */
- if ((cs[0] & 0xDF) == 'S' &&
- (cs[1] & 0xDF) == 'I' &&
- (cs[2] & 0xDF) == 'G' &&
- cs[3] != '\0') {
- /* skip leading "SIG" */
- cs += 3;
- }
- strdupx(s, cs, APERM);
- sigtraps[i].name = s;
- while ((*s = ksh_toupper(*s)))
- ++s;
- }
-#if HAVE_SYS_SIGLIST
- sigtraps[i].mess = sys_siglist[i];
-#elif HAVE_STRSIGNAL
- sigtraps[i].mess = strsignal(i);
-#else
- sigtraps[i].mess = NULL;
-#endif
- if ((sigtraps[i].mess == NULL) ||
- (sigtraps[i].mess[0] == '\0'))
- sigtraps[i].mess = shf_smprintf("%s %d",
- "Signal", i);
- }
- }
- /* our name for signal 0 */
- sigtraps[ksh_SIGEXIT].name = "EXIT";
-
- (void)sigemptyset(&Sigact_ign.sa_mask);
- Sigact_ign.sa_flags = 0; /* interruptible */
- Sigact_ign.sa_handler = SIG_IGN;
-
- sigtraps[SIGINT].flags |= TF_DFL_INTR | TF_TTY_INTR;
- sigtraps[SIGQUIT].flags |= TF_DFL_INTR | TF_TTY_INTR;
- /* SIGTERM is not fatal for interactive */
- sigtraps[SIGTERM].flags |= TF_DFL_INTR;
- sigtraps[SIGHUP].flags |= TF_FATAL;
- sigtraps[SIGCHLD].flags |= TF_SHELL_USES;
-
- /* these are always caught so we can clean up any temporary files. */
- setsig(&sigtraps[SIGINT], trapsig, SS_RESTORE_ORIG);
- setsig(&sigtraps[SIGQUIT], trapsig, SS_RESTORE_ORIG);
- setsig(&sigtraps[SIGTERM], trapsig, SS_RESTORE_ORIG);
- setsig(&sigtraps[SIGHUP], trapsig, SS_RESTORE_ORIG);
-}
-
-static void alarm_catcher(int sig);
-
-void
-alarm_init(void)
-{
- sigtraps[SIGALRM].flags |= TF_SHELL_USES;
- setsig(&sigtraps[SIGALRM], alarm_catcher,
- SS_RESTORE_ORIG|SS_FORCE|SS_SHTRAP);
-}
-
-/* ARGSUSED */
-static void
-alarm_catcher(int sig MKSH_A_UNUSED)
-{
- /* this runs inside interrupt context, with errno saved */
-
- if (ksh_tmout_state == TMOUT_READING) {
- int left = alarm(0);
-
- if (left == 0) {
- ksh_tmout_state = TMOUT_LEAVING;
- intrsig = 1;
- } else
- alarm(left);
- }
-}
-
-Trap *
-gettrap(const char *cs, bool igncase)
-{
- int i;
- Trap *p;
- char *as;
-
- if (ksh_isdigit(*cs)) {
- return ((getn(cs, &i) && 0 <= i && i < NSIG) ?
- (&sigtraps[i]) : NULL);
- }
-
- /* this breaks SIGSIG1, but we do that above anyway */
- if ((cs[0] & 0xDF) == 'S' &&
- (cs[1] & 0xDF) == 'I' &&
- (cs[2] & 0xDF) == 'G' &&
- cs[3] != '\0') {
- /* skip leading "SIG" */
- cs += 3;
- }
- if (igncase) {
- char *s;
-
- strdupx(as, cs, ATEMP);
- cs = s = as;
- while ((*s = ksh_toupper(*s)))
- ++s;
- } else
- as = NULL;
-
- p = sigtraps;
- for (i = 0; i <= NSIG; i++) {
- if (!strcmp(p->name, cs))
- goto found;
- ++p;
- }
- p = NULL;
- found:
- afree(as, ATEMP);
- return (p);
-}
-
-/*
- * trap signal handler
- */
-void
-trapsig(int i)
-{
- Trap *p = &sigtraps[i];
- int eno = errno;
-
- trap = p->set = 1;
- if (p->flags & TF_DFL_INTR)
- intrsig = 1;
- if ((p->flags & TF_FATAL) && !p->trap) {
- fatal_trap = 1;
- intrsig = 1;
- }
- if (p->shtrap)
- (*p->shtrap)(i);
- errno = eno;
-}
-
-/*
- * called when we want to allow the user to ^C out of something - won't
- * work if user has trapped SIGINT.
- */
-void
-intrcheck(void)
-{
- if (intrsig)
- runtraps(TF_DFL_INTR|TF_FATAL);
-}
-
-/*
- * called after EINTR to check if a signal with normally causes process
- * termination has been received.
- */
-int
-fatal_trap_check(void)
-{
- int i;
- Trap *p;
-
- /* todo: should check if signal is fatal, not the TF_DFL_INTR flag */
- for (p = sigtraps, i = NSIG+1; --i >= 0; p++)
- if (p->set && (p->flags & (TF_DFL_INTR|TF_FATAL)))
- /* return value is used as an exit code */
- return (128 + p->signal);
- return (0);
-}
-
-/*
- * Returns the signal number of any pending traps: ie, a signal which has
- * occurred for which a trap has been set or for which the TF_DFL_INTR flag
- * is set.
- */
-int
-trap_pending(void)
-{
- int i;
- Trap *p;
-
- for (p = sigtraps, i = NSIG+1; --i >= 0; p++)
- if (p->set && ((p->trap && p->trap[0]) ||
- ((p->flags & (TF_DFL_INTR|TF_FATAL)) && !p->trap)))
- return (p->signal);
- return (0);
-}
-
-/*
- * run any pending traps. If intr is set, only run traps that
- * can interrupt commands.
- */
-void
-runtraps(int flag)
-{
- int i;
- Trap *p;
-
- if (ksh_tmout_state == TMOUT_LEAVING) {
- ksh_tmout_state = TMOUT_EXECUTING;
- warningf(false, "timed out waiting for input");
- unwind(LEXIT);
- } else
- /*
- * XXX: this means the alarm will have no effect if a trap
- * is caught after the alarm() was started...not good.
- */
- ksh_tmout_state = TMOUT_EXECUTING;
- if (!flag)
- trap = 0;
- if (flag & TF_DFL_INTR)
- intrsig = 0;
- if (flag & TF_FATAL)
- fatal_trap = 0;
- ++trap_nested;
- for (p = sigtraps, i = NSIG+1; --i >= 0; p++)
- if (p->set && (!flag ||
- ((p->flags & flag) && p->trap == NULL)))
- runtrap(p, false);
- if (!--trap_nested)
- runtrap(NULL, true);
-}
-
-void
-runtrap(Trap *p, bool is_last)
-{
- int old_changed = 0, i;
- char *trapstr;
-
- if (p == NULL)
- /* just clean up, see runtraps() above */
- goto donetrap;
- i = p->signal;
- trapstr = p->trap;
- p->set = 0;
- if (trapstr == NULL) {
- /* SIG_DFL */
- if (p->flags & TF_FATAL) {
- /* eg, SIGHUP */
- exstat = (int)ksh_min(128U + (unsigned)i, 255U);
- unwind(LLEAVE);
- }
- if (p->flags & TF_DFL_INTR) {
- /* eg, SIGINT, SIGQUIT, SIGTERM, etc. */
- exstat = (int)ksh_min(128U + (unsigned)i, 255U);
- unwind(LINTR);
- }
- goto donetrap;
- }
- if (trapstr[0] == '\0')
- /* SIG_IGN */
- goto donetrap;
- if (i == ksh_SIGEXIT || i == ksh_SIGERR) {
- /* avoid recursion on these */
- old_changed = p->flags & TF_CHANGED;
- p->flags &= ~TF_CHANGED;
- p->trap = NULL;
- }
- if (trap_exstat == -1)
- trap_exstat = exstat & 0xFF;
- /*
- * Note: trapstr is fully parsed before anything is executed, thus
- * no problem with afree(p->trap) in settrap() while still in use.
- */
- command(trapstr, current_lineno);
- if (i == ksh_SIGEXIT || i == ksh_SIGERR) {
- if (p->flags & TF_CHANGED)
- /* don't clear TF_CHANGED */
- afree(trapstr, APERM);
- else
- p->trap = trapstr;
- p->flags |= old_changed;
- }
-
- donetrap:
- /* we're the last trap of a sequence executed */
- if (is_last && trap_exstat != -1) {
- exstat = trap_exstat;
- trap_exstat = -1;
- }
-}
-
-/* clear pending traps and reset user's trap handlers; used after fork(2) */
-void
-cleartraps(void)
-{
- int i;
- Trap *p;
-
- trap = 0;
- intrsig = 0;
- fatal_trap = 0;
- for (i = NSIG+1, p = sigtraps; --i >= 0; p++) {
- p->set = 0;
- if ((p->flags & TF_USER_SET) && (p->trap && p->trap[0]))
- settrap(p, NULL);
- }
-}
-
-/* restore signals just before an exec(2) */
-void
-restoresigs(void)
-{
- int i;
- Trap *p;
-
- for (i = NSIG+1, p = sigtraps; --i >= 0; p++)
- if (p->flags & (TF_EXEC_IGN|TF_EXEC_DFL))
- setsig(p, (p->flags & TF_EXEC_IGN) ? SIG_IGN : SIG_DFL,
- SS_RESTORE_CURR|SS_FORCE);
-}
-
-void
-settrap(Trap *p, const char *s)
-{
- sig_t f;
-
- if (p->trap)
- afree(p->trap, APERM);
- /* handles s == NULL */
- strdupx(p->trap, s, APERM);
- p->flags |= TF_CHANGED;
- f = !s ? SIG_DFL : s[0] ? trapsig : SIG_IGN;
-
- p->flags |= TF_USER_SET;
- if ((p->flags & (TF_DFL_INTR|TF_FATAL)) && f == SIG_DFL)
- f = trapsig;
- else if (p->flags & TF_SHELL_USES) {
- if (!(p->flags & TF_ORIG_IGN) || Flag(FTALKING)) {
- /* do what user wants at exec time */
- p->flags &= ~(TF_EXEC_IGN|TF_EXEC_DFL);
- if (f == SIG_IGN)
- p->flags |= TF_EXEC_IGN;
- else
- p->flags |= TF_EXEC_DFL;
- }
-
- /*
- * assumes handler already set to what shell wants it
- * (normally trapsig, but could be j_sigchld() or SIG_IGN)
- */
- return;
- }
-
- /* todo: should we let user know signal is ignored? how? */
- setsig(p, f, SS_RESTORE_CURR|SS_USER);
-}
-
-/*
- * Called by c_print() when writing to a co-process to ensure SIGPIPE won't
- * kill shell (unless user catches it and exits)
- */
-int
-block_pipe(void)
-{
- int restore_dfl = 0;
- Trap *p = &sigtraps[SIGPIPE];
-
- if (!(p->flags & (TF_ORIG_IGN|TF_ORIG_DFL))) {
- setsig(p, SIG_IGN, SS_RESTORE_CURR);
- if (p->flags & TF_ORIG_DFL)
- restore_dfl = 1;
- } else if (p->cursig == SIG_DFL) {
- setsig(p, SIG_IGN, SS_RESTORE_CURR);
- /* restore to SIG_DFL */
- restore_dfl = 1;
- }
- return (restore_dfl);
-}
-
-/* Called by c_print() to undo whatever block_pipe() did */
-void
-restore_pipe(int restore_dfl)
-{
- if (restore_dfl)
- setsig(&sigtraps[SIGPIPE], SIG_DFL, SS_RESTORE_CURR);
-}
-
-/*
- * Set action for a signal. Action may not be set if original
- * action was SIG_IGN, depending on the value of flags and FTALKING.
- */
-int
-setsig(Trap *p, sig_t f, int flags)
-{
- struct sigaction sigact;
-
- if (p->signal == ksh_SIGEXIT || p->signal == ksh_SIGERR)
- return (1);
-
- memset(&sigact, 0, sizeof(sigact));
-
- /*
- * First time setting this signal? If so, get and note the current
- * setting.
- */
- if (!(p->flags & (TF_ORIG_IGN|TF_ORIG_DFL))) {
- sigaction(p->signal, &Sigact_ign, &sigact);
- p->flags |= sigact.sa_handler == SIG_IGN ?
- TF_ORIG_IGN : TF_ORIG_DFL;
- p->cursig = SIG_IGN;
- }
-
- /*-
- * Generally, an ignored signal stays ignored, except if
- * - the user of an interactive shell wants to change it
- * - the shell wants for force a change
- */
- if ((p->flags & TF_ORIG_IGN) && !(flags & SS_FORCE) &&
- (!(flags & SS_USER) || !Flag(FTALKING)))
- return (0);
-
- setexecsig(p, flags & SS_RESTORE_MASK);
-
- /*
- * This is here 'cause there should be a way of clearing
- * shtraps, but don't know if this is a sane way of doing
- * it. At the moment, all users of shtrap are lifetime
- * users (SIGALRM, SIGCHLD, SIGWINCH).
- */
- if (!(flags & SS_USER))
- p->shtrap = (sig_t)NULL;
- if (flags & SS_SHTRAP) {
- p->shtrap = f;
- f = trapsig;
- }
-
- if (p->cursig != f) {
- p->cursig = f;
- (void)sigemptyset(&sigact.sa_mask);
- /* interruptible */
- sigact.sa_flags = 0;
- sigact.sa_handler = f;
- sigaction(p->signal, &sigact, NULL);
- }
-
- return (1);
-}
-
-/* control what signal is set to before an exec() */
-void
-setexecsig(Trap *p, int restore)
-{
- /* XXX debugging */
- if (!(p->flags & (TF_ORIG_IGN|TF_ORIG_DFL)))
- internal_errorf("setexecsig: unset signal %d(%s)",
- p->signal, p->name);
-
- /* restore original value for exec'd kids */
- p->flags &= ~(TF_EXEC_IGN|TF_EXEC_DFL);
- switch (restore & SS_RESTORE_MASK) {
- case SS_RESTORE_CURR:
- /* leave things as they currently are */
- break;
- case SS_RESTORE_ORIG:
- p->flags |= p->flags & TF_ORIG_IGN ? TF_EXEC_IGN : TF_EXEC_DFL;
- break;
- case SS_RESTORE_DFL:
- p->flags |= TF_EXEC_DFL;
- break;
- case SS_RESTORE_IGN:
- p->flags |= TF_EXEC_IGN;
- break;
- }
-}
-
-#if HAVE_PERSISTENT_HISTORY || defined(DF)
-/*
- * File descriptor locking and unlocking functions.
- * Could use some error handling, but hey, this is only
- * advisory locking anyway, will often not work over NFS,
- * and you are SOL if this fails...
- */
-
-void
-mksh_lockfd(int fd)
-{
-#if defined(__OpenBSD__)
- /* flock is not interrupted by signals */
- (void)flock(fd, LOCK_EX);
-#elif HAVE_FLOCK
- int rv;
-
- /* e.g. on Linux */
- do {
- rv = flock(fd, LOCK_EX);
- } while (rv == 1 && errno == EINTR);
-#elif HAVE_LOCK_FCNTL
- int rv;
- struct flock lks;
-
- memset(&lks, 0, sizeof(lks));
- lks.l_type = F_WRLCK;
- do {
- rv = fcntl(fd, F_SETLKW, &lks);
- } while (rv == 1 && errno == EINTR);
-#endif
-}
-
-/* designed to not define mksh_unlkfd if none triggered */
-#if HAVE_FLOCK
-void
-mksh_unlkfd(int fd)
-{
- (void)flock(fd, LOCK_UN);
-}
-#elif HAVE_LOCK_FCNTL
-void
-mksh_unlkfd(int fd)
-{
- struct flock lks;
-
- memset(&lks, 0, sizeof(lks));
- lks.l_type = F_UNLCK;
- (void)fcntl(fd, F_SETLKW, &lks);
-}
-#endif
-#endif
Copied: vendor/MirOS/mksh/R50/histrap.c (from rev 6707, vendor/MirOS/mksh/dist/histrap.c)
===================================================================
--- vendor/MirOS/mksh/R50/histrap.c (rev 0)
+++ vendor/MirOS/mksh/R50/histrap.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1514 @@
+/* $OpenBSD: history.c,v 1.39 2010/05/19 17:36:08 jasper Exp $ */
+/* $OpenBSD: trap.c,v 1.23 2010/05/19 17:36:08 jasper Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+#if HAVE_SYS_FILE_H
+#include <sys/file.h>
+#endif
+
+__RCSID("$MirOS: src/bin/mksh/histrap.c,v 1.134 2014/06/09 13:25:53 tg Exp $");
+
+Trap sigtraps[NSIG + 1];
+static struct sigaction Sigact_ign;
+
+#if HAVE_PERSISTENT_HISTORY
+static int histload(Source *, unsigned char *, size_t);
+static int writehistline(int, int, const char *);
+static void writehistfile(int, const char *);
+#endif
+
+static int hist_execute(char *);
+static char **hist_get(const char *, bool, bool);
+static char **hist_get_oldest(void);
+
+static bool hstarted; /* set after hist_init() called */
+static Source *hist_source;
+
+#if HAVE_PERSISTENT_HISTORY
+/*XXX imake style */
+#if defined(__linux)
+#define caddr_cast(x) ((void *)(x))
+#else
+#define caddr_cast(x) ((caddr_t)(x))
+#endif
+
+/* several OEs do not have these constants */
+#ifndef MAP_FAILED
+#define MAP_FAILED caddr_cast(-1)
+#endif
+
+/* some OEs need the default mapping type specified */
+#ifndef MAP_FILE
+#define MAP_FILE 0
+#endif
+
+/* current history file: name, fd, size */
+static char *hname;
+static int histfd = -1;
+static off_t histfsize;
+#endif
+
+static const char Tnot_in_history[] = "not in history";
+#define Thistory (Tnot_in_history + 7)
+
+static const char TFCEDIT_dollaru[] = "${FCEDIT:-/bin/ed} $_";
+#define Tspdollaru (TFCEDIT_dollaru + 18)
+
+/* HISTSIZE default: size of saved history, persistent or standard */
+#ifdef MKSH_SMALL
+#define MKSH_DEFHISTSIZE 255
+#else
+#define MKSH_DEFHISTSIZE 2047
+#endif
+/* maximum considered size of persistent history file */
+#define MKSH_MAXHISTFSIZE ((off_t)1048576 * 96)
+
+int
+c_fc(const char **wp)
+{
+ struct shf *shf;
+ struct temp *tf;
+ bool gflag = false, lflag = false, nflag = false, rflag = false,
+ sflag = false;
+ int optc;
+ const char *p, *first = NULL, *last = NULL;
+ char **hfirst, **hlast, **hp, *editor = NULL;
+
+ if (!Flag(FTALKING_I)) {
+ bi_errorf("history %ss not available", Tfunction);
+ return (1);
+ }
+
+ while ((optc = ksh_getopt(wp, &builtin_opt,
+ "e:glnrs0,1,2,3,4,5,6,7,8,9,")) != -1)
+ switch (optc) {
+
+ case 'e':
+ p = builtin_opt.optarg;
+ if (ksh_isdash(p))
+ sflag = true;
+ else {
+ size_t len = strlen(p);
+
+ /* almost certainly not overflowing */
+ editor = alloc(len + 4, ATEMP);
+ memcpy(editor, p, len);
+ memcpy(editor + len, Tspdollaru, 4);
+ }
+ break;
+
+ /* non-AT&T ksh */
+ case 'g':
+ gflag = true;
+ break;
+
+ case 'l':
+ lflag = true;
+ break;
+
+ case 'n':
+ nflag = true;
+ break;
+
+ case 'r':
+ rflag = true;
+ break;
+
+ /* POSIX version of -e - */
+ case 's':
+ sflag = true;
+ break;
+
+ /* kludge city - accept -num as -- -num (kind of) */
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ p = shf_smprintf("-%c%s",
+ optc, builtin_opt.optarg);
+ if (!first)
+ first = p;
+ else if (!last)
+ last = p;
+ else {
+ bi_errorf("too many arguments");
+ return (1);
+ }
+ break;
+
+ case '?':
+ return (1);
+ }
+ wp += builtin_opt.optind;
+
+ /* Substitute and execute command */
+ if (sflag) {
+ char *pat = NULL, *rep = NULL, *line;
+
+ if (editor || lflag || nflag || rflag) {
+ bi_errorf("can't use -e, -l, -n, -r with -s (-e -)");
+ return (1);
+ }
+
+ /* Check for pattern replacement argument */
+ if (*wp && **wp && (p = cstrchr(*wp + 1, '='))) {
+ strdupx(pat, *wp, ATEMP);
+ rep = pat + (p - *wp);
+ *rep++ = '\0';
+ wp++;
+ }
+ /* Check for search prefix */
+ if (!first && (first = *wp))
+ wp++;
+ if (last || *wp) {
+ bi_errorf("too many arguments");
+ return (1);
+ }
+
+ hp = first ? hist_get(first, false, false) :
+ hist_get_newest(false);
+ if (!hp)
+ return (1);
+ /* hist_replace */
+ if (!pat)
+ strdupx(line, *hp, ATEMP);
+ else {
+ char *s, *s1;
+ size_t len, pat_len, rep_len;
+ XString xs;
+ char *xp;
+ bool any_subst = false;
+
+ pat_len = strlen(pat);
+ rep_len = strlen(rep);
+ Xinit(xs, xp, 128, ATEMP);
+ for (s = *hp; (s1 = strstr(s, pat)) &&
+ (!any_subst || gflag); s = s1 + pat_len) {
+ any_subst = true;
+ len = s1 - s;
+ XcheckN(xs, xp, len + rep_len);
+ /*; first part */
+ memcpy(xp, s, len);
+ xp += len;
+ /* replacement */
+ memcpy(xp, rep, rep_len);
+ xp += rep_len;
+ }
+ if (!any_subst) {
+ bi_errorf("bad substitution");
+ return (1);
+ }
+ len = strlen(s) + 1;
+ XcheckN(xs, xp, len);
+ memcpy(xp, s, len);
+ xp += len;
+ line = Xclose(xs, xp);
+ }
+ return (hist_execute(line));
+ }
+
+ if (editor && (lflag || nflag)) {
+ bi_errorf("can't use -l, -n with -e");
+ return (1);
+ }
+
+ if (!first && (first = *wp))
+ wp++;
+ if (!last && (last = *wp))
+ wp++;
+ if (*wp) {
+ bi_errorf("too many arguments");
+ return (1);
+ }
+ if (!first) {
+ hfirst = lflag ? hist_get("-16", true, true) :
+ hist_get_newest(false);
+ if (!hfirst)
+ return (1);
+ /* can't fail if hfirst didn't fail */
+ hlast = hist_get_newest(false);
+ } else {
+ /*
+ * POSIX says not an error if first/last out of bounds
+ * when range is specified; AT&T ksh and pdksh allow out
+ * of bounds for -l as well.
+ */
+ hfirst = hist_get(first, tobool(lflag || last), lflag);
+ if (!hfirst)
+ return (1);
+ hlast = last ? hist_get(last, true, lflag) :
+ (lflag ? hist_get_newest(false) : hfirst);
+ if (!hlast)
+ return (1);
+ }
+ if (hfirst > hlast) {
+ char **temp;
+
+ temp = hfirst; hfirst = hlast; hlast = temp;
+ /* POSIX */
+ rflag = !rflag;
+ }
+
+ /* List history */
+ if (lflag) {
+ char *s, *t;
+
+ for (hp = rflag ? hlast : hfirst;
+ hp >= hfirst && hp <= hlast; hp += rflag ? -1 : 1) {
+ if (!nflag)
+ shf_fprintf(shl_stdout, "%d",
+ hist_source->line - (int)(histptr - hp));
+ shf_putc('\t', shl_stdout);
+ /* print multi-line commands correctly */
+ s = *hp;
+ while ((t = strchr(s, '\n'))) {
+ *t = '\0';
+ shf_fprintf(shl_stdout, "%s\n\t", s);
+ *t++ = '\n';
+ s = t;
+ }
+ shf_fprintf(shl_stdout, "%s\n", s);
+ }
+ shf_flush(shl_stdout);
+ return (0);
+ }
+
+ /* Run editor on selected lines, then run resulting commands */
+
+ tf = maketemp(ATEMP, TT_HIST_EDIT, &e->temps);
+ if (!(shf = tf->shf)) {
+ bi_errorf("can't %s temporary file %s: %s",
+ "create", tf->tffn, cstrerror(errno));
+ return (1);
+ }
+ for (hp = rflag ? hlast : hfirst;
+ hp >= hfirst && hp <= hlast; hp += rflag ? -1 : 1)
+ shf_fprintf(shf, "%s\n", *hp);
+ if (shf_close(shf) == EOF) {
+ bi_errorf("can't %s temporary file %s: %s",
+ "write", tf->tffn, cstrerror(errno));
+ return (1);
+ }
+
+ /* Ignore setstr errors here (arbitrary) */
+ setstr(local("_", false), tf->tffn, KSH_RETURN_ERROR);
+
+ /* XXX: source should not get trashed by this.. */
+ {
+ Source *sold = source;
+ int ret;
+
+ ret = command(editor ? editor : TFCEDIT_dollaru, 0);
+ source = sold;
+ if (ret)
+ return (ret);
+ }
+
+ {
+ struct stat statb;
+ XString xs;
+ char *xp;
+ ssize_t n;
+
+ if (!(shf = shf_open(tf->tffn, O_RDONLY, 0, 0))) {
+ bi_errorf("can't %s temporary file %s: %s",
+ "open", tf->tffn, cstrerror(errno));
+ return (1);
+ }
+
+ if (stat(tf->tffn, &statb) < 0)
+ n = 128;
+ else if ((off_t)statb.st_size > MKSH_MAXHISTFSIZE) {
+ bi_errorf("%s %s too large: %lu", Thistory,
+ "file", (unsigned long)statb.st_size);
+ goto errout;
+ } else
+ n = (size_t)statb.st_size + 1;
+ Xinit(xs, xp, n, hist_source->areap);
+ while ((n = shf_read(xp, Xnleft(xs, xp), shf)) > 0) {
+ xp += n;
+ if (Xnleft(xs, xp) <= 0)
+ XcheckN(xs, xp, Xlength(xs, xp));
+ }
+ if (n < 0) {
+ bi_errorf("can't %s temporary file %s: %s",
+ "read", tf->tffn, cstrerror(shf_errno(shf)));
+ errout:
+ shf_close(shf);
+ return (1);
+ }
+ shf_close(shf);
+ *xp = '\0';
+ strip_nuls(Xstring(xs, xp), Xlength(xs, xp));
+ return (hist_execute(Xstring(xs, xp)));
+ }
+}
+
+/* Save cmd in history, execute cmd (cmd gets trashed) */
+static int
+hist_execute(char *cmd)
+{
+ static int last_line = -1;
+ Source *sold;
+ int ret;
+ char *p, *q;
+
+ /* Back up over last histsave */
+ if (histptr >= history && last_line != hist_source->line) {
+ hist_source->line--;
+ afree(*histptr, APERM);
+ histptr--;
+ last_line = hist_source->line;
+ }
+
+ for (p = cmd; p; p = q) {
+ if ((q = strchr(p, '\n'))) {
+ /* kill the newline */
+ *q++ = '\0';
+ if (!*q)
+ /* ignore trailing newline */
+ q = NULL;
+ }
+ histsave(&hist_source->line, p, true, true);
+
+ /* POSIX doesn't say this is done... */
+ shellf("%s\n", p);
+ if (q)
+ /* restore \n (trailing \n not restored) */
+ q[-1] = '\n';
+ }
+
+ /*-
+ * Commands are executed here instead of pushing them onto the
+ * input 'cause POSIX says the redirection and variable assignments
+ * in
+ * X=y fc -e - 42 2> /dev/null
+ * are to effect the repeated commands environment.
+ */
+ /* XXX: source should not get trashed by this.. */
+ sold = source;
+ ret = command(cmd, 0);
+ source = sold;
+ return (ret);
+}
+
+/*
+ * get pointer to history given pattern
+ * pattern is a number or string
+ */
+static char **
+hist_get(const char *str, bool approx, bool allow_cur)
+{
+ char **hp = NULL;
+ int n;
+
+ if (getn(str, &n)) {
+ hp = histptr + (n < 0 ? n : (n - hist_source->line));
+ if ((ptrdiff_t)hp < (ptrdiff_t)history) {
+ if (approx)
+ hp = hist_get_oldest();
+ else {
+ bi_errorf("%s: %s", str, Tnot_in_history);
+ hp = NULL;
+ }
+ } else if ((ptrdiff_t)hp > (ptrdiff_t)histptr) {
+ if (approx)
+ hp = hist_get_newest(allow_cur);
+ else {
+ bi_errorf("%s: %s", str, Tnot_in_history);
+ hp = NULL;
+ }
+ } else if (!allow_cur && hp == histptr) {
+ bi_errorf("%s: %s", str, "invalid range");
+ hp = NULL;
+ }
+ } else {
+ bool anchored = *str == '?' ? (++str, false) : true;
+
+ /* the -1 is to avoid the current fc command */
+ if ((n = findhist(histptr - history - 1, 0, str, anchored)) < 0)
+ bi_errorf("%s: %s", str, Tnot_in_history);
+ else
+ hp = &history[n];
+ }
+ return (hp);
+}
+
+/* Return a pointer to the newest command in the history */
+char **
+hist_get_newest(bool allow_cur)
+{
+ if (histptr < history || (!allow_cur && histptr == history)) {
+ bi_errorf("no history (yet)");
+ return (NULL);
+ }
+ return (allow_cur ? histptr : histptr - 1);
+}
+
+/* Return a pointer to the oldest command in the history */
+static char **
+hist_get_oldest(void)
+{
+ if (histptr <= history) {
+ bi_errorf("no history (yet)");
+ return (NULL);
+ }
+ return (history);
+}
+
+#if !defined(MKSH_NO_CMDLINE_EDITING) && !MKSH_S_NOVI
+/* current position in history[] */
+static char **current;
+
+/*
+ * Return the current position.
+ */
+char **
+histpos(void)
+{
+ return (current);
+}
+
+int
+histnum(int n)
+{
+ int last = histptr - history;
+
+ if (n < 0 || n >= last) {
+ current = histptr;
+ return (last);
+ } else {
+ current = &history[n];
+ return (n);
+ }
+}
+#endif
+
+/*
+ * This will become unnecessary if hist_get is modified to allow
+ * searching from positions other than the end, and in either
+ * direction.
+ */
+int
+findhist(int start, int fwd, const char *str, bool anchored)
+{
+ char **hp;
+ int maxhist = histptr - history;
+ int incr = fwd ? 1 : -1;
+ size_t len = strlen(str);
+
+ if (start < 0 || start >= maxhist)
+ start = maxhist;
+
+ hp = &history[start];
+ for (; hp >= history && hp <= histptr; hp += incr)
+ if ((anchored && strncmp(*hp, str, len) == 0) ||
+ (!anchored && strstr(*hp, str)))
+ return (hp - history);
+
+ return (-1);
+}
+
+/*
+ * set history; this means reallocating the dataspace
+ */
+void
+sethistsize(mksh_ari_t n)
+{
+ if (n > 0 && n != histsize) {
+ int cursize = histptr - history;
+
+ /* save most recent history */
+ if (n < cursize) {
+ memmove(history, histptr - n + 1, n * sizeof(char *));
+ cursize = n - 1;
+ }
+
+ history = aresize2(history, n, sizeof(char *), APERM);
+
+ histsize = n;
+ histptr = history + cursize;
+ }
+}
+
+#if HAVE_PERSISTENT_HISTORY
+/*
+ * set history file; this can mean reloading/resetting/starting
+ * history file maintenance
+ */
+void
+sethistfile(const char *name)
+{
+ /* if not started then nothing to do */
+ if (hstarted == false)
+ return;
+
+ /* if the name is the same as the name we have */
+ if (hname && strcmp(hname, name) == 0)
+ return;
+
+ /*
+ * it's a new name - possibly
+ */
+ if (histfd != -1) {
+ /* yes the file is open */
+ (void)close(histfd);
+ histfd = -1;
+ histfsize = 0;
+ afree(hname, APERM);
+ hname = NULL;
+ /* let's reset the history */
+ histptr = history - 1;
+ hist_source->line = 0;
+ }
+
+ hist_init(hist_source);
+}
+#endif
+
+/*
+ * initialise the history vector
+ */
+void
+init_histvec(void)
+{
+ if (history == (char **)NULL) {
+ histsize = MKSH_DEFHISTSIZE;
+ history = alloc2(histsize, sizeof(char *), APERM);
+ histptr = history - 1;
+ }
+}
+
+
+/*
+ * It turns out that there is a lot of ghastly hackery here
+ */
+
+#if !defined(MKSH_SMALL) && HAVE_PERSISTENT_HISTORY
+/* do not save command in history but possibly sync */
+bool
+histsync(void)
+{
+ bool changed = false;
+
+ if (histfd != -1) {
+ int lno = hist_source->line;
+
+ hist_source->line++;
+ writehistfile(0, NULL);
+ hist_source->line--;
+
+ if (lno != hist_source->line)
+ changed = true;
+ }
+
+ return (changed);
+}
+#endif
+
+/*
+ * save command in history
+ */
+void
+histsave(int *lnp, const char *cmd, bool dowrite MKSH_A_UNUSED, bool ignoredups)
+{
+ char **hp;
+ char *c, *cp;
+
+ mkssert(cmd != NULL);
+ strdupx(c, cmd, APERM);
+ if ((cp = strchr(c, '\n')) != NULL)
+ *cp = '\0';
+
+ if (ignoredups && !strcmp(c, *histptr)
+#if !defined(MKSH_SMALL) && HAVE_PERSISTENT_HISTORY
+ && !histsync()
+#endif
+ ) {
+ afree(c, APERM);
+ return;
+ }
+ ++*lnp;
+
+#if HAVE_PERSISTENT_HISTORY
+ if (dowrite && histfd != -1)
+ writehistfile(*lnp, c);
+#endif
+
+ hp = histptr;
+
+ if (++hp >= history + histsize) {
+ /* remove oldest command */
+ afree(*history, APERM);
+ for (hp = history; hp < history + histsize - 1; hp++)
+ hp[0] = hp[1];
+ }
+ *hp = c;
+ histptr = hp;
+}
+
+/*
+ * Write history data to a file nominated by HISTFILE;
+ * if HISTFILE is unset then history still happens, but
+ * the data is not written to a file. All copies of ksh
+ * looking at the file will maintain the same history.
+ * This is ksh behaviour.
+ *
+ * This stuff uses mmap()
+ *
+ * This stuff is so totally broken it must eventually be
+ * redesigned, without mmap, better checks, support for
+ * larger files, etc. and handle partially corrupted files
+ */
+
+/*-
+ * Open a history file
+ * Format is:
+ * Bytes 1, 2:
+ * HMAGIC - just to check that we are dealing with the correct object
+ * Then follows a number of stored commands
+ * Each command is
+ * <command byte><command number(4 octets, big endian)><bytes><NUL>
+ */
+#define HMAGIC1 0xAB
+#define HMAGIC2 0xCD
+#define COMMAND 0xFF
+
+#if HAVE_PERSISTENT_HISTORY
+static const unsigned char sprinkle[2] = { HMAGIC1, HMAGIC2 };
+#endif
+
+void
+hist_init(Source *s)
+{
+#if HAVE_PERSISTENT_HISTORY
+ unsigned char *base;
+ int lines, fd;
+ enum { hist_init_first, hist_init_retry, hist_init_restore } hs;
+#endif
+
+ if (Flag(FTALKING) == 0)
+ return;
+
+ hstarted = true;
+ hist_source = s;
+
+#if HAVE_PERSISTENT_HISTORY
+ if ((hname = str_val(global("HISTFILE"))) == NULL)
+ return;
+ strdupx(hname, hname, APERM);
+ hs = hist_init_first;
+
+ retry:
+ /* we have a file and are interactive */
+ if ((fd = open(hname, O_RDWR | O_CREAT | O_APPEND | O_BINARY,
+ 0600)) < 0)
+ return;
+
+ histfd = savefd(fd);
+ if (histfd != fd)
+ close(fd);
+
+ mksh_lockfd(histfd);
+
+ histfsize = lseek(histfd, (off_t)0, SEEK_END);
+ if (histfsize > MKSH_MAXHISTFSIZE || hs == hist_init_restore) {
+ /* we ignore too large files but still append to them */
+ /* we also don't need to re-read after truncation */
+ goto hist_init_tail;
+ } else if (histfsize > 2) {
+ /* we have some data, check its validity */
+ base = (void *)mmap(NULL, (size_t)histfsize, PROT_READ,
+ MAP_FILE | MAP_PRIVATE, histfd, (off_t)0);
+ if (base == (unsigned char *)MAP_FAILED)
+ goto hist_init_fail;
+ if (base[0] != HMAGIC1 || base[1] != HMAGIC2) {
+ munmap(caddr_cast(base), (size_t)histfsize);
+ goto hist_init_fail;
+ }
+ /* load _all_ data */
+ lines = histload(hist_source, base + 2, (size_t)histfsize - 2);
+ munmap(caddr_cast(base), (size_t)histfsize);
+ /* check if the file needs to be truncated */
+ if (lines > histsize && histptr >= history) {
+ /* you're fucked up with the current code, trust me */
+ char *nhname, **hp;
+ struct stat sb;
+
+ /* create temporary file */
+ nhname = shf_smprintf("%s.%d", hname, (int)procpid);
+ if ((fd = open(nhname, O_RDWR | O_CREAT | O_TRUNC |
+ O_EXCL | O_BINARY, 0600)) < 0) {
+ /* just don't truncate then, meh. */
+ goto hist_trunc_dont;
+ }
+ if (fstat(histfd, &sb) >= 0 &&
+ chown(nhname, sb.st_uid, sb.st_gid)) {
+ /* abort the truncation then, meh. */
+ goto hist_trunc_abort;
+ }
+ /* we definitively want some magic in that file */
+ if (write(fd, sprinkle, 2) != 2)
+ goto hist_trunc_abort;
+ /* and of course the entries */
+ hp = history;
+ while (hp < histptr) {
+ if (!writehistline(fd,
+ s->line - (histptr - hp), *hp))
+ goto hist_trunc_abort;
+ ++hp;
+ }
+ /* now unlock, close both, rename, rinse, repeat */
+ close(fd);
+ fd = -1;
+ hist_finish();
+ if (rename(nhname, hname) < 0) {
+ hist_trunc_abort:
+ if (fd != -1)
+ close(fd);
+ unlink(nhname);
+ if (fd != -1)
+ goto hist_trunc_dont;
+ /* darn! restore histfd and pray */
+ }
+ hs = hist_init_restore;
+ hist_trunc_dont:
+ afree(nhname, ATEMP);
+ if (hs == hist_init_restore)
+ goto retry;
+ }
+ } else if (histfsize != 0) {
+ /* negative or too small... */
+ hist_init_fail:
+ /* ... or mmap failed or illegal */
+ hist_finish();
+ /* nuke the bogus file then retry, at most once */
+ if (!unlink(hname) && hs != hist_init_retry) {
+ hs = hist_init_retry;
+ goto retry;
+ }
+ if (hs != hist_init_retry)
+ bi_errorf("can't %s %s: %s",
+ "unlink HISTFILE", hname, cstrerror(errno));
+ histfsize = 0;
+ return;
+ } else {
+ /* size 0, add magic to the history file */
+ if (write(histfd, sprinkle, 2) != 2) {
+ hist_finish();
+ return;
+ }
+ }
+ histfsize = lseek(histfd, (off_t)0, SEEK_END);
+ hist_init_tail:
+ mksh_unlkfd(histfd);
+#endif
+}
+
+#if HAVE_PERSISTENT_HISTORY
+/*
+ * load the history structure from the stored data
+ */
+static int
+histload(Source *s, unsigned char *base, size_t bytes)
+{
+ int lno = 0, lines = 0;
+ unsigned char *cp;
+
+ histload_loop:
+ /* !bytes check as some systems (older FreeBSDs) have buggy memchr */
+ if (!bytes || (cp = memchr(base, COMMAND, bytes)) == NULL)
+ return (lines);
+ /* advance base pointer past COMMAND byte */
+ bytes -= ++cp - base;
+ base = cp;
+ /* if there is no full string left, don't bother with the rest */
+ if (bytes < 5 || (cp = memchr(base + 4, '\0', bytes - 4)) == NULL)
+ return (lines);
+ /* load the stored line number */
+ lno = ((base[0] & 0xFF) << 24) | ((base[1] & 0xFF) << 16) |
+ ((base[2] & 0xFF) << 8) | (base[3] & 0xFF);
+ /* store away the found line (@base[4]) */
+ ++lines;
+ if (histptr >= history && lno - 1 != s->line) {
+ /* a replacement? */
+ char **hp;
+
+ if (lno >= s->line - (histptr - history) && lno <= s->line) {
+ hp = &histptr[lno - s->line];
+ if (*hp)
+ afree(*hp, APERM);
+ strdupx(*hp, (char *)(base + 4), APERM);
+ }
+ } else {
+ s->line = lno--;
+ histsave(&lno, (char *)(base + 4), false, false);
+ }
+ /* advance base pointer past NUL */
+ bytes -= ++cp - base;
+ base = cp;
+ /* repeat until no more */
+ goto histload_loop;
+}
+
+/*
+ * write a command to the end of the history file
+ *
+ * This *MAY* seem easy but it's also necessary to check
+ * that the history file has not changed in size.
+ * If it has - then some other shell has written to it and
+ * we should (re)read those commands to update our history
+ */
+static void
+writehistfile(int lno, const char *cmd)
+{
+ off_t sizenow;
+ size_t bytes;
+ unsigned char *base, *news;
+
+ mksh_lockfd(histfd);
+ sizenow = lseek(histfd, (off_t)0, SEEK_END);
+ if (sizenow < histfsize) {
+ /* the file has shrunk; give up */
+ goto bad;
+ }
+ if (
+ /* ignore changes when the file is too large */
+ sizenow <= MKSH_MAXHISTFSIZE
+ &&
+ /* the size has changed, we need to do read updates */
+ sizenow > histfsize
+ ) {
+ /* both sizenow and histfsize are <= MKSH_MAXHISTFSIZE */
+ bytes = (size_t)(sizenow - histfsize);
+ base = (void *)mmap(NULL, (size_t)sizenow, PROT_READ,
+ MAP_FILE | MAP_PRIVATE, histfd, (off_t)0);
+ if (base == (unsigned char *)MAP_FAILED)
+ goto bad;
+ news = base + (size_t)histfsize;
+ if (*news == COMMAND) {
+ hist_source->line--;
+ histload(hist_source, news, bytes);
+ hist_source->line++;
+ lno = hist_source->line;
+ } else
+ bytes = 0;
+ munmap(caddr_cast(base), (size_t)sizenow);
+ if (!bytes)
+ goto bad;
+ }
+ if (cmd && !writehistline(histfd, lno, cmd)) {
+ bad:
+ hist_finish();
+ return;
+ }
+ histfsize = lseek(histfd, (off_t)0, SEEK_END);
+ mksh_unlkfd(histfd);
+}
+
+static int
+writehistline(int fd, int lno, const char *cmd)
+{
+ ssize_t n;
+ unsigned char hdr[5];
+
+ hdr[0] = COMMAND;
+ hdr[1] = (lno >> 24) & 0xFF;
+ hdr[2] = (lno >> 16) & 0xFF;
+ hdr[3] = (lno >> 8) & 0xFF;
+ hdr[4] = lno & 0xFF;
+ n = strlen(cmd) + 1;
+ return (write(fd, hdr, 5) == 5 && write(fd, cmd, n) == n);
+}
+
+void
+hist_finish(void)
+{
+ if (histfd >= 0) {
+ mksh_unlkfd(histfd);
+ (void)close(histfd);
+ }
+ histfd = -1;
+}
+#endif
+
+
+#if !HAVE_SYS_SIGNAME
+static const struct mksh_sigpair {
+ const char * const name;
+ int nr;
+} mksh_sigpairs[] = {
+#include "signames.inc"
+ { NULL, 0 }
+};
+#endif
+
+#if HAVE_SYS_SIGLIST
+#if !HAVE_SYS_SIGLIST_DECL
+extern const char * const sys_siglist[];
+#endif
+#endif
+
+void
+inittraps(void)
+{
+ int i;
+ const char *cs;
+
+ trap_exstat = -1;
+
+ /* Populate sigtraps based on sys_signame and sys_siglist. */
+ /*XXX this is idiotic, use a multi-key/value hashtable! */
+ for (i = 0; i <= NSIG; i++) {
+ sigtraps[i].signal = i;
+ if (i == ksh_SIGERR) {
+ sigtraps[i].name = "ERR";
+ sigtraps[i].mess = "Error handler";
+ } else {
+#if HAVE_SYS_SIGNAME
+ cs = sys_signame[i];
+#else
+ const struct mksh_sigpair *pair = mksh_sigpairs;
+ while ((pair->nr != i) && (pair->name != NULL))
+ ++pair;
+ cs = pair->name;
+#endif
+ if ((cs == NULL) ||
+ (cs[0] == '\0'))
+ sigtraps[i].name = shf_smprintf("%d", i);
+ else {
+ char *s;
+
+ /* this is not optimal, what about SIGSIG1? */
+ if ((cs[0] & 0xDF) == 'S' &&
+ (cs[1] & 0xDF) == 'I' &&
+ (cs[2] & 0xDF) == 'G' &&
+ cs[3] != '\0') {
+ /* skip leading "SIG" */
+ cs += 3;
+ }
+ strdupx(s, cs, APERM);
+ sigtraps[i].name = s;
+ while ((*s = ksh_toupper(*s)))
+ ++s;
+ }
+#if HAVE_SYS_SIGLIST
+ sigtraps[i].mess = sys_siglist[i];
+#elif HAVE_STRSIGNAL
+ sigtraps[i].mess = strsignal(i);
+#else
+ sigtraps[i].mess = NULL;
+#endif
+ if ((sigtraps[i].mess == NULL) ||
+ (sigtraps[i].mess[0] == '\0'))
+ sigtraps[i].mess = shf_smprintf("%s %d",
+ "Signal", i);
+ }
+ }
+ /* our name for signal 0 */
+ sigtraps[ksh_SIGEXIT].name = "EXIT";
+
+ (void)sigemptyset(&Sigact_ign.sa_mask);
+ Sigact_ign.sa_flags = 0; /* interruptible */
+ Sigact_ign.sa_handler = SIG_IGN;
+
+ sigtraps[SIGINT].flags |= TF_DFL_INTR | TF_TTY_INTR;
+ sigtraps[SIGQUIT].flags |= TF_DFL_INTR | TF_TTY_INTR;
+ /* SIGTERM is not fatal for interactive */
+ sigtraps[SIGTERM].flags |= TF_DFL_INTR;
+ sigtraps[SIGHUP].flags |= TF_FATAL;
+ sigtraps[SIGCHLD].flags |= TF_SHELL_USES;
+
+ /* these are always caught so we can clean up any temporary files. */
+ setsig(&sigtraps[SIGINT], trapsig, SS_RESTORE_ORIG);
+ setsig(&sigtraps[SIGQUIT], trapsig, SS_RESTORE_ORIG);
+ setsig(&sigtraps[SIGTERM], trapsig, SS_RESTORE_ORIG);
+ setsig(&sigtraps[SIGHUP], trapsig, SS_RESTORE_ORIG);
+}
+
+static void alarm_catcher(int sig);
+
+void
+alarm_init(void)
+{
+ sigtraps[SIGALRM].flags |= TF_SHELL_USES;
+ setsig(&sigtraps[SIGALRM], alarm_catcher,
+ SS_RESTORE_ORIG|SS_FORCE|SS_SHTRAP);
+}
+
+/* ARGSUSED */
+static void
+alarm_catcher(int sig MKSH_A_UNUSED)
+{
+ /* this runs inside interrupt context, with errno saved */
+
+ if (ksh_tmout_state == TMOUT_READING) {
+ int left = alarm(0);
+
+ if (left == 0) {
+ ksh_tmout_state = TMOUT_LEAVING;
+ intrsig = 1;
+ } else
+ alarm(left);
+ }
+}
+
+Trap *
+gettrap(const char *cs, bool igncase)
+{
+ int i;
+ Trap *p;
+ char *as;
+
+ if (ksh_isdigit(*cs)) {
+ return ((getn(cs, &i) && 0 <= i && i < NSIG) ?
+ (&sigtraps[i]) : NULL);
+ }
+
+ /* this breaks SIGSIG1, but we do that above anyway */
+ if ((cs[0] & 0xDF) == 'S' &&
+ (cs[1] & 0xDF) == 'I' &&
+ (cs[2] & 0xDF) == 'G' &&
+ cs[3] != '\0') {
+ /* skip leading "SIG" */
+ cs += 3;
+ }
+ if (igncase) {
+ char *s;
+
+ strdupx(as, cs, ATEMP);
+ cs = s = as;
+ while ((*s = ksh_toupper(*s)))
+ ++s;
+ } else
+ as = NULL;
+
+ p = sigtraps;
+ for (i = 0; i <= NSIG; i++) {
+ if (!strcmp(p->name, cs))
+ goto found;
+ ++p;
+ }
+ p = NULL;
+ found:
+ afree(as, ATEMP);
+ return (p);
+}
+
+/*
+ * trap signal handler
+ */
+void
+trapsig(int i)
+{
+ Trap *p = &sigtraps[i];
+ int eno = errno;
+
+ trap = p->set = 1;
+ if (p->flags & TF_DFL_INTR)
+ intrsig = 1;
+ if ((p->flags & TF_FATAL) && !p->trap) {
+ fatal_trap = 1;
+ intrsig = 1;
+ }
+ if (p->shtrap)
+ (*p->shtrap)(i);
+ errno = eno;
+}
+
+/*
+ * called when we want to allow the user to ^C out of something - won't
+ * work if user has trapped SIGINT.
+ */
+void
+intrcheck(void)
+{
+ if (intrsig)
+ runtraps(TF_DFL_INTR|TF_FATAL);
+}
+
+/*
+ * called after EINTR to check if a signal with normally causes process
+ * termination has been received.
+ */
+int
+fatal_trap_check(void)
+{
+ int i;
+ Trap *p;
+
+ /* todo: should check if signal is fatal, not the TF_DFL_INTR flag */
+ for (p = sigtraps, i = NSIG+1; --i >= 0; p++)
+ if (p->set && (p->flags & (TF_DFL_INTR|TF_FATAL)))
+ /* return value is used as an exit code */
+ return (128 + p->signal);
+ return (0);
+}
+
+/*
+ * Returns the signal number of any pending traps: ie, a signal which has
+ * occurred for which a trap has been set or for which the TF_DFL_INTR flag
+ * is set.
+ */
+int
+trap_pending(void)
+{
+ int i;
+ Trap *p;
+
+ for (p = sigtraps, i = NSIG+1; --i >= 0; p++)
+ if (p->set && ((p->trap && p->trap[0]) ||
+ ((p->flags & (TF_DFL_INTR|TF_FATAL)) && !p->trap)))
+ return (p->signal);
+ return (0);
+}
+
+/*
+ * run any pending traps. If intr is set, only run traps that
+ * can interrupt commands.
+ */
+void
+runtraps(int flag)
+{
+ int i;
+ Trap *p;
+
+ if (ksh_tmout_state == TMOUT_LEAVING) {
+ ksh_tmout_state = TMOUT_EXECUTING;
+ warningf(false, "timed out waiting for input");
+ unwind(LEXIT);
+ } else
+ /*
+ * XXX: this means the alarm will have no effect if a trap
+ * is caught after the alarm() was started...not good.
+ */
+ ksh_tmout_state = TMOUT_EXECUTING;
+ if (!flag)
+ trap = 0;
+ if (flag & TF_DFL_INTR)
+ intrsig = 0;
+ if (flag & TF_FATAL)
+ fatal_trap = 0;
+ ++trap_nested;
+ for (p = sigtraps, i = NSIG+1; --i >= 0; p++)
+ if (p->set && (!flag ||
+ ((p->flags & flag) && p->trap == NULL)))
+ runtrap(p, false);
+ if (!--trap_nested)
+ runtrap(NULL, true);
+}
+
+void
+runtrap(Trap *p, bool is_last)
+{
+ int old_changed = 0, i;
+ char *trapstr;
+
+ if (p == NULL)
+ /* just clean up, see runtraps() above */
+ goto donetrap;
+ i = p->signal;
+ trapstr = p->trap;
+ p->set = 0;
+ if (trapstr == NULL) {
+ /* SIG_DFL */
+ if (p->flags & TF_FATAL) {
+ /* eg, SIGHUP */
+ exstat = (int)ksh_min(128U + (unsigned)i, 255U);
+ unwind(LLEAVE);
+ }
+ if (p->flags & TF_DFL_INTR) {
+ /* eg, SIGINT, SIGQUIT, SIGTERM, etc. */
+ exstat = (int)ksh_min(128U + (unsigned)i, 255U);
+ unwind(LINTR);
+ }
+ goto donetrap;
+ }
+ if (trapstr[0] == '\0')
+ /* SIG_IGN */
+ goto donetrap;
+ if (i == ksh_SIGEXIT || i == ksh_SIGERR) {
+ /* avoid recursion on these */
+ old_changed = p->flags & TF_CHANGED;
+ p->flags &= ~TF_CHANGED;
+ p->trap = NULL;
+ }
+ if (trap_exstat == -1)
+ trap_exstat = exstat & 0xFF;
+ /*
+ * Note: trapstr is fully parsed before anything is executed, thus
+ * no problem with afree(p->trap) in settrap() while still in use.
+ */
+ command(trapstr, current_lineno);
+ if (i == ksh_SIGEXIT || i == ksh_SIGERR) {
+ if (p->flags & TF_CHANGED)
+ /* don't clear TF_CHANGED */
+ afree(trapstr, APERM);
+ else
+ p->trap = trapstr;
+ p->flags |= old_changed;
+ }
+
+ donetrap:
+ /* we're the last trap of a sequence executed */
+ if (is_last && trap_exstat != -1) {
+ exstat = trap_exstat;
+ trap_exstat = -1;
+ }
+}
+
+/* clear pending traps and reset user's trap handlers; used after fork(2) */
+void
+cleartraps(void)
+{
+ int i;
+ Trap *p;
+
+ trap = 0;
+ intrsig = 0;
+ fatal_trap = 0;
+ for (i = NSIG+1, p = sigtraps; --i >= 0; p++) {
+ p->set = 0;
+ if ((p->flags & TF_USER_SET) && (p->trap && p->trap[0]))
+ settrap(p, NULL);
+ }
+}
+
+/* restore signals just before an exec(2) */
+void
+restoresigs(void)
+{
+ int i;
+ Trap *p;
+
+ for (i = NSIG+1, p = sigtraps; --i >= 0; p++)
+ if (p->flags & (TF_EXEC_IGN|TF_EXEC_DFL))
+ setsig(p, (p->flags & TF_EXEC_IGN) ? SIG_IGN : SIG_DFL,
+ SS_RESTORE_CURR|SS_FORCE);
+}
+
+void
+settrap(Trap *p, const char *s)
+{
+ sig_t f;
+
+ if (p->trap)
+ afree(p->trap, APERM);
+ /* handles s == NULL */
+ strdupx(p->trap, s, APERM);
+ p->flags |= TF_CHANGED;
+ f = !s ? SIG_DFL : s[0] ? trapsig : SIG_IGN;
+
+ p->flags |= TF_USER_SET;
+ if ((p->flags & (TF_DFL_INTR|TF_FATAL)) && f == SIG_DFL)
+ f = trapsig;
+ else if (p->flags & TF_SHELL_USES) {
+ if (!(p->flags & TF_ORIG_IGN) || Flag(FTALKING)) {
+ /* do what user wants at exec time */
+ p->flags &= ~(TF_EXEC_IGN|TF_EXEC_DFL);
+ if (f == SIG_IGN)
+ p->flags |= TF_EXEC_IGN;
+ else
+ p->flags |= TF_EXEC_DFL;
+ }
+
+ /*
+ * assumes handler already set to what shell wants it
+ * (normally trapsig, but could be j_sigchld() or SIG_IGN)
+ */
+ return;
+ }
+
+ /* todo: should we let user know signal is ignored? how? */
+ setsig(p, f, SS_RESTORE_CURR|SS_USER);
+}
+
+/*
+ * Called by c_print() when writing to a co-process to ensure SIGPIPE won't
+ * kill shell (unless user catches it and exits)
+ */
+int
+block_pipe(void)
+{
+ int restore_dfl = 0;
+ Trap *p = &sigtraps[SIGPIPE];
+
+ if (!(p->flags & (TF_ORIG_IGN|TF_ORIG_DFL))) {
+ setsig(p, SIG_IGN, SS_RESTORE_CURR);
+ if (p->flags & TF_ORIG_DFL)
+ restore_dfl = 1;
+ } else if (p->cursig == SIG_DFL) {
+ setsig(p, SIG_IGN, SS_RESTORE_CURR);
+ /* restore to SIG_DFL */
+ restore_dfl = 1;
+ }
+ return (restore_dfl);
+}
+
+/* Called by c_print() to undo whatever block_pipe() did */
+void
+restore_pipe(int restore_dfl)
+{
+ if (restore_dfl)
+ setsig(&sigtraps[SIGPIPE], SIG_DFL, SS_RESTORE_CURR);
+}
+
+/*
+ * Set action for a signal. Action may not be set if original
+ * action was SIG_IGN, depending on the value of flags and FTALKING.
+ */
+int
+setsig(Trap *p, sig_t f, int flags)
+{
+ struct sigaction sigact;
+
+ if (p->signal == ksh_SIGEXIT || p->signal == ksh_SIGERR)
+ return (1);
+
+ memset(&sigact, 0, sizeof(sigact));
+
+ /*
+ * First time setting this signal? If so, get and note the current
+ * setting.
+ */
+ if (!(p->flags & (TF_ORIG_IGN|TF_ORIG_DFL))) {
+ sigaction(p->signal, &Sigact_ign, &sigact);
+ p->flags |= sigact.sa_handler == SIG_IGN ?
+ TF_ORIG_IGN : TF_ORIG_DFL;
+ p->cursig = SIG_IGN;
+ }
+
+ /*-
+ * Generally, an ignored signal stays ignored, except if
+ * - the user of an interactive shell wants to change it
+ * - the shell wants for force a change
+ */
+ if ((p->flags & TF_ORIG_IGN) && !(flags & SS_FORCE) &&
+ (!(flags & SS_USER) || !Flag(FTALKING)))
+ return (0);
+
+ setexecsig(p, flags & SS_RESTORE_MASK);
+
+ /*
+ * This is here 'cause there should be a way of clearing
+ * shtraps, but don't know if this is a sane way of doing
+ * it. At the moment, all users of shtrap are lifetime
+ * users (SIGALRM, SIGCHLD, SIGWINCH).
+ */
+ if (!(flags & SS_USER))
+ p->shtrap = (sig_t)NULL;
+ if (flags & SS_SHTRAP) {
+ p->shtrap = f;
+ f = trapsig;
+ }
+
+ if (p->cursig != f) {
+ p->cursig = f;
+ (void)sigemptyset(&sigact.sa_mask);
+ /* interruptible */
+ sigact.sa_flags = 0;
+ sigact.sa_handler = f;
+ sigaction(p->signal, &sigact, NULL);
+ }
+
+ return (1);
+}
+
+/* control what signal is set to before an exec() */
+void
+setexecsig(Trap *p, int restore)
+{
+ /* XXX debugging */
+ if (!(p->flags & (TF_ORIG_IGN|TF_ORIG_DFL)))
+ internal_errorf("setexecsig: unset signal %d(%s)",
+ p->signal, p->name);
+
+ /* restore original value for exec'd kids */
+ p->flags &= ~(TF_EXEC_IGN|TF_EXEC_DFL);
+ switch (restore & SS_RESTORE_MASK) {
+ case SS_RESTORE_CURR:
+ /* leave things as they currently are */
+ break;
+ case SS_RESTORE_ORIG:
+ p->flags |= p->flags & TF_ORIG_IGN ? TF_EXEC_IGN : TF_EXEC_DFL;
+ break;
+ case SS_RESTORE_DFL:
+ p->flags |= TF_EXEC_DFL;
+ break;
+ case SS_RESTORE_IGN:
+ p->flags |= TF_EXEC_IGN;
+ break;
+ }
+}
+
+#if HAVE_PERSISTENT_HISTORY || defined(DF)
+/*
+ * File descriptor locking and unlocking functions.
+ * Could use some error handling, but hey, this is only
+ * advisory locking anyway, will often not work over NFS,
+ * and you are SOL if this fails...
+ */
+
+void
+mksh_lockfd(int fd)
+{
+#if defined(__OpenBSD__)
+ /* flock is not interrupted by signals */
+ (void)flock(fd, LOCK_EX);
+#elif HAVE_FLOCK
+ int rv;
+
+ /* e.g. on Linux */
+ do {
+ rv = flock(fd, LOCK_EX);
+ } while (rv == 1 && errno == EINTR);
+#elif HAVE_LOCK_FCNTL
+ int rv;
+ struct flock lks;
+
+ memset(&lks, 0, sizeof(lks));
+ lks.l_type = F_WRLCK;
+ do {
+ rv = fcntl(fd, F_SETLKW, &lks);
+ } while (rv == 1 && errno == EINTR);
+#endif
+}
+
+/* designed to not define mksh_unlkfd if none triggered */
+#if HAVE_FLOCK
+void
+mksh_unlkfd(int fd)
+{
+ (void)flock(fd, LOCK_UN);
+}
+#elif HAVE_LOCK_FCNTL
+void
+mksh_unlkfd(int fd)
+{
+ struct flock lks;
+
+ memset(&lks, 0, sizeof(lks));
+ lks.l_type = F_UNLCK;
+ (void)fcntl(fd, F_SETLKW, &lks);
+}
+#endif
+#endif
Deleted: vendor/MirOS/mksh/R50/jobs.c
===================================================================
--- vendor/MirOS/mksh/dist/jobs.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/jobs.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1850 +0,0 @@
-/* $OpenBSD: jobs.c,v 1.39 2009/12/13 04:36:48 deraadt Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011,
- * 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-
-__RCSID("$MirOS: src/bin/mksh/jobs.c,v 1.100 2013/07/26 20:33:23 tg Exp $");
-
-#if HAVE_KILLPG
-#define mksh_killpg killpg
-#else
-/* cross fingers and hope kill is killpg-endowed */
-#define mksh_killpg(p,s) kill(-(p), (s))
-#endif
-
-/* Order important! */
-#define PRUNNING 0
-#define PEXITED 1
-#define PSIGNALLED 2
-#define PSTOPPED 3
-
-typedef struct proc Proc;
-struct proc {
- Proc *next; /* next process in pipeline (if any) */
- pid_t pid; /* process id */
- int state;
- int status; /* wait status */
- /* process command string from vistree */
- char command[256 - (ALLOC_SIZE + sizeof(Proc *) + sizeof(pid_t) +
- 2 * sizeof(int))];
-};
-
-/* Notify/print flag - j_print() argument */
-#define JP_SHORT 1 /* print signals processes were killed by */
-#define JP_MEDIUM 2 /* print [job-num] -/+ command */
-#define JP_LONG 3 /* print [job-num] -/+ pid command */
-#define JP_PGRP 4 /* print pgrp */
-
-/* put_job() flags */
-#define PJ_ON_FRONT 0 /* at very front */
-#define PJ_PAST_STOPPED 1 /* just past any stopped jobs */
-
-/* Job.flags values */
-#define JF_STARTED 0x001 /* set when all processes in job are started */
-#define JF_WAITING 0x002 /* set if j_waitj() is waiting on job */
-#define JF_W_ASYNCNOTIFY 0x004 /* set if waiting and async notification ok */
-#define JF_XXCOM 0x008 /* set for $(command) jobs */
-#define JF_FG 0x010 /* running in foreground (also has tty pgrp) */
-#define JF_SAVEDTTY 0x020 /* j->ttystat is valid */
-#define JF_CHANGED 0x040 /* process has changed state */
-#define JF_KNOWN 0x080 /* $! referenced */
-#define JF_ZOMBIE 0x100 /* known, unwaited process */
-#define JF_REMOVE 0x200 /* flagged for removal (j_jobs()/j_noityf()) */
-#define JF_USETTYMODE 0x400 /* tty mode saved if process exits normally */
-#define JF_SAVEDTTYPGRP 0x800 /* j->saved_ttypgrp is valid */
-
-typedef struct job Job;
-struct job {
- Job *next; /* next job in list */
- Proc *proc_list; /* process list */
- Proc *last_proc; /* last process in list */
- struct timeval systime; /* system time used by job */
- struct timeval usrtime; /* user time used by job */
- pid_t pgrp; /* process group of job */
- pid_t ppid; /* pid of process that forked job */
- int job; /* job number: %n */
- int flags; /* see JF_* */
- volatile int state; /* job state */
- int status; /* exit status of last process */
- int32_t age; /* number of jobs started */
- Coproc_id coproc_id; /* 0 or id of coprocess output pipe */
-#ifndef MKSH_UNEMPLOYED
- mksh_ttyst ttystat; /* saved tty state for stopped jobs */
- pid_t saved_ttypgrp; /* saved tty process group for stopped jobs */
-#endif
-};
-
-/* Flags for j_waitj() */
-#define JW_NONE 0x00
-#define JW_INTERRUPT 0x01 /* ^C will stop the wait */
-#define JW_ASYNCNOTIFY 0x02 /* asynchronous notification during wait ok */
-#define JW_STOPPEDWAIT 0x04 /* wait even if job stopped */
-#define JW_PIPEST 0x08 /* want PIPESTATUS */
-
-/* Error codes for j_lookup() */
-#define JL_NOSUCH 0 /* no such job */
-#define JL_AMBIG 1 /* %foo or %?foo is ambiguous */
-#define JL_INVALID 2 /* non-pid, non-% job id */
-
-static const char * const lookup_msgs[] = {
- "no such job",
- "ambiguous",
- "argument must be %job or process id"
-};
-
-static Job *job_list; /* job list */
-static Job *last_job;
-static Job *async_job;
-static pid_t async_pid;
-
-static int nzombie; /* # of zombies owned by this process */
-static int32_t njobs; /* # of jobs started */
-
-#ifndef CHILD_MAX
-#define CHILD_MAX 25
-#endif
-
-#ifndef MKSH_NOPROSPECTOFWORK
-/* held_sigchld is set if sigchld occurs before a job is completely started */
-static volatile sig_atomic_t held_sigchld;
-#endif
-
-#ifndef MKSH_UNEMPLOYED
-static struct shf *shl_j;
-static bool ttypgrp_ok; /* set if can use tty pgrps */
-static pid_t restore_ttypgrp = -1;
-static int const tt_sigs[] = { SIGTSTP, SIGTTIN, SIGTTOU };
-#endif
-
-static void j_set_async(Job *);
-static void j_startjob(Job *);
-static int j_waitj(Job *, int, const char *);
-static void j_sigchld(int);
-static void j_print(Job *, int, struct shf *);
-static Job *j_lookup(const char *, int *);
-static Job *new_job(void);
-static Proc *new_proc(void);
-static void check_job(Job *);
-static void put_job(Job *, int);
-static void remove_job(Job *, const char *);
-static int kill_job(Job *, int);
-
-static void tty_init_talking(void);
-static void tty_init_state(void);
-
-/* initialise job control */
-void
-j_init(void)
-{
-#ifndef MKSH_UNEMPLOYED
- bool mflagset = Flag(FMONITOR) != 127;
-
- Flag(FMONITOR) = 0;
-#endif
-
-#ifndef MKSH_NOPROSPECTOFWORK
- (void)sigemptyset(&sm_default);
- sigprocmask(SIG_SETMASK, &sm_default, NULL);
-
- (void)sigemptyset(&sm_sigchld);
- (void)sigaddset(&sm_sigchld, SIGCHLD);
-
- setsig(&sigtraps[SIGCHLD], j_sigchld,
- SS_RESTORE_ORIG|SS_FORCE|SS_SHTRAP);
-#else
- /* Make sure SIGCHLD isn't ignored - can do odd things under SYSV */
- setsig(&sigtraps[SIGCHLD], SIG_DFL, SS_RESTORE_ORIG|SS_FORCE);
-#endif
-
-#ifndef MKSH_UNEMPLOYED
- if (!mflagset && Flag(FTALKING))
- Flag(FMONITOR) = 1;
-
- /*
- * shl_j is used to do asynchronous notification (used in
- * an interrupt handler, so need a distinct shf)
- */
- shl_j = shf_fdopen(2, SHF_WR, NULL);
-
- if (Flag(FMONITOR) || Flag(FTALKING)) {
- int i;
-
- /*
- * the TF_SHELL_USES test is a kludge that lets us know if
- * if the signals have been changed by the shell.
- */
- for (i = NELEM(tt_sigs); --i >= 0; ) {
- sigtraps[tt_sigs[i]].flags |= TF_SHELL_USES;
- /* j_change() sets this to SS_RESTORE_DFL if FMONITOR */
- setsig(&sigtraps[tt_sigs[i]], SIG_IGN,
- SS_RESTORE_IGN|SS_FORCE);
- }
- }
-
- /* j_change() calls tty_init_talking() and tty_init_state() */
- if (Flag(FMONITOR))
- j_change();
- else
-#endif
- if (Flag(FTALKING)) {
- tty_init_talking();
- tty_init_state();
- }
-}
-
-static int
-proc_errorlevel(Proc *p)
-{
- switch (p->state) {
- case PEXITED:
- return (WEXITSTATUS(p->status));
- case PSIGNALLED:
- return (128 + WTERMSIG(p->status));
- default:
- return (0);
- }
-}
-
-/* job cleanup before shell exit */
-void
-j_exit(void)
-{
- /* kill stopped, and possibly running, jobs */
- Job *j;
- bool killed = false;
-
- for (j = job_list; j != NULL; j = j->next) {
- if (j->ppid == procpid &&
- (j->state == PSTOPPED ||
- (j->state == PRUNNING &&
- ((j->flags & JF_FG) ||
- (Flag(FLOGIN) && !Flag(FNOHUP) && procpid == kshpid))))) {
- killed = true;
- if (j->pgrp == 0)
- kill_job(j, SIGHUP);
- else
- mksh_killpg(j->pgrp, SIGHUP);
-#ifndef MKSH_UNEMPLOYED
- if (j->state == PSTOPPED) {
- if (j->pgrp == 0)
- kill_job(j, SIGCONT);
- else
- mksh_killpg(j->pgrp, SIGCONT);
- }
-#endif
- }
- }
- if (killed)
- sleep(1);
- j_notify();
-
-#ifndef MKSH_UNEMPLOYED
- if (kshpid == procpid && restore_ttypgrp >= 0) {
- /*
- * Need to restore the tty pgrp to what it was when the
- * shell started up, so that the process that started us
- * will be able to access the tty when we are done.
- * Also need to restore our process group in case we are
- * about to do an exec so that both our parent and the
- * process we are to become will be able to access the tty.
- */
- tcsetpgrp(tty_fd, restore_ttypgrp);
- setpgid(0, restore_ttypgrp);
- }
- if (Flag(FMONITOR)) {
- Flag(FMONITOR) = 0;
- j_change();
- }
-#endif
-}
-
-#ifndef MKSH_UNEMPLOYED
-/* turn job control on or off according to Flag(FMONITOR) */
-void
-j_change(void)
-{
- int i;
-
- if (Flag(FMONITOR)) {
- bool use_tty = Flag(FTALKING);
-
- /* don't call mksh_tcget until we own the tty process group */
- if (use_tty)
- tty_init_talking();
-
- /* no controlling tty, no SIGT* */
- if ((ttypgrp_ok = (use_tty && tty_fd >= 0 && tty_devtty))) {
- setsig(&sigtraps[SIGTTIN], SIG_DFL,
- SS_RESTORE_ORIG|SS_FORCE);
- /* wait to be given tty (POSIX.1, B.2, job control) */
- while (/* CONSTCOND */ 1) {
- pid_t ttypgrp;
-
- if ((ttypgrp = tcgetpgrp(tty_fd)) < 0) {
- warningf(false, "%s: %s %s: %s",
- "j_init", "tcgetpgrp", "failed",
- cstrerror(errno));
- ttypgrp_ok = false;
- break;
- }
- if (ttypgrp == kshpgrp)
- break;
- kill(0, SIGTTIN);
- }
- }
- for (i = NELEM(tt_sigs); --i >= 0; )
- setsig(&sigtraps[tt_sigs[i]], SIG_IGN,
- SS_RESTORE_DFL|SS_FORCE);
- if (ttypgrp_ok && kshpgrp != kshpid) {
- if (setpgid(0, kshpid) < 0) {
- warningf(false, "%s: %s %s: %s", "j_init",
- "setpgid", "failed", cstrerror(errno));
- ttypgrp_ok = false;
- } else {
- if (tcsetpgrp(tty_fd, kshpid) < 0) {
- warningf(false, "%s: %s %s: %s",
- "j_init", "tcsetpgrp", "failed",
- cstrerror(errno));
- ttypgrp_ok = false;
- } else
- restore_ttypgrp = kshpgrp;
- kshpgrp = kshpid;
- }
- }
-#ifndef MKSH_DISABLE_TTY_WARNING
- if (use_tty && !ttypgrp_ok)
- warningf(false, "%s: %s", "warning",
- "won't have full job control");
-#endif
- } else {
- ttypgrp_ok = false;
- if (Flag(FTALKING))
- for (i = NELEM(tt_sigs); --i >= 0; )
- setsig(&sigtraps[tt_sigs[i]], SIG_IGN,
- SS_RESTORE_IGN|SS_FORCE);
- else
- for (i = NELEM(tt_sigs); --i >= 0; ) {
- if (sigtraps[tt_sigs[i]].flags &
- (TF_ORIG_IGN | TF_ORIG_DFL))
- setsig(&sigtraps[tt_sigs[i]],
- (sigtraps[tt_sigs[i]].flags & TF_ORIG_IGN) ?
- SIG_IGN : SIG_DFL,
- SS_RESTORE_ORIG|SS_FORCE);
- }
- }
- tty_init_state();
-}
-#endif
-
-#if HAVE_NICE
-/* run nice(3) and ignore the result */
-static void
-ksh_nice(int ness)
-{
-#if defined(__USE_FORTIFY_LEVEL) && (__USE_FORTIFY_LEVEL > 0)
- int eno;
-
- errno = 0;
- /* this is gonna annoy users; complain to your distro, people! */
- if (nice(ness) == -1 && (eno = errno) != 0)
- warningf(false, "%s: %s", "bgnice", cstrerror(eno));
-#else
- (void)nice(ness);
-#endif
-}
-#endif
-
-/* execute tree in child subprocess */
-int
-exchild(struct op *t, int flags,
- volatile int *xerrok,
- /* used if XPCLOSE or XCCLOSE */
- int close_fd)
-{
- /* for pipelines */
- static Proc *last_proc;
-
- int rv = 0, forksleep, jwflags = JW_NONE;
-#ifndef MKSH_NOPROSPECTOFWORK
- sigset_t omask;
-#endif
- Proc *p;
- Job *j;
- pid_t cldpid;
-
- if (flags & XPIPEST) {
- flags &= ~XPIPEST;
- jwflags |= JW_PIPEST;
- }
-
- if (flags & XEXEC)
- /*
- * Clear XFORK|XPCLOSE|XCCLOSE|XCOPROC|XPIPEO|XPIPEI|XXCOM|XBGND
- * (also done in another execute() below)
- */
- return (execute(t, flags & (XEXEC | XERROK), xerrok));
-
-#ifndef MKSH_NOPROSPECTOFWORK
- /* no SIGCHLDs while messing with job and process lists */
- sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
-#endif
-
- p = new_proc();
- p->next = NULL;
- p->state = PRUNNING;
- p->status = 0;
- p->pid = 0;
-
- /* link process into jobs list */
- if (flags & XPIPEI) {
- /* continuing with a pipe */
- if (!last_job)
- internal_errorf("%s %d",
- "exchild: XPIPEI and no last_job - pid",
- (int)procpid);
- j = last_job;
- if (last_proc)
- last_proc->next = p;
- last_proc = p;
- } else {
- /* fills in j->job */
- j = new_job();
- /*
- * we don't consider XXCOMs foreground since they don't get
- * tty process group and we don't save or restore tty modes.
- */
- j->flags = (flags & XXCOM) ? JF_XXCOM :
- ((flags & XBGND) ? 0 : (JF_FG|JF_USETTYMODE));
- timerclear(&j->usrtime);
- timerclear(&j->systime);
- j->state = PRUNNING;
- j->pgrp = 0;
- j->ppid = procpid;
- j->age = ++njobs;
- j->proc_list = p;
- j->coproc_id = 0;
- last_job = j;
- last_proc = p;
- put_job(j, PJ_PAST_STOPPED);
- }
-
- vistree(p->command, sizeof(p->command), t);
-
- /* create child process */
- forksleep = 1;
- while ((cldpid = fork()) < 0 && errno == EAGAIN && forksleep < 32) {
- if (intrsig)
- /* allow user to ^C out... */
- break;
- sleep(forksleep);
- forksleep <<= 1;
- }
- /* ensure $RANDOM changes between parent and child */
- rndset((unsigned long)cldpid);
- /* fork failed? */
- if (cldpid < 0) {
- kill_job(j, SIGKILL);
- remove_job(j, "fork failed");
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
- errorf("can't fork - try again");
- }
- p->pid = cldpid ? cldpid : (procpid = getpid());
-
-#ifndef MKSH_UNEMPLOYED
- /* job control set up */
- if (Flag(FMONITOR) && !(flags&XXCOM)) {
- bool dotty = false;
-
- if (j->pgrp == 0) {
- /* First process */
- j->pgrp = p->pid;
- dotty = true;
- }
-
- /*
- * set pgrp in both parent and child to deal with race
- * condition
- */
- setpgid(p->pid, j->pgrp);
- if (ttypgrp_ok && dotty && !(flags & XBGND))
- tcsetpgrp(tty_fd, j->pgrp);
- }
-#endif
-
- /* used to close pipe input fd */
- if (close_fd >= 0 && (((flags & XPCLOSE) && cldpid) ||
- ((flags & XCCLOSE) && !cldpid)))
- close(close_fd);
- if (!cldpid) {
- /* child */
-
- /* Do this before restoring signal */
- if (flags & XCOPROC)
- coproc_cleanup(false);
- cleanup_parents_env();
-#ifndef MKSH_UNEMPLOYED
- /*
- * If FMONITOR or FTALKING is set, these signals are ignored,
- * if neither FMONITOR nor FTALKING are set, the signals have
- * their inherited values.
- */
- if (Flag(FMONITOR) && !(flags & XXCOM)) {
- for (forksleep = NELEM(tt_sigs); --forksleep >= 0; )
- setsig(&sigtraps[tt_sigs[forksleep]], SIG_DFL,
- SS_RESTORE_DFL|SS_FORCE);
- }
-#endif
-#if HAVE_NICE
- if (Flag(FBGNICE) && (flags & XBGND))
- ksh_nice(4);
-#endif
- if ((flags & XBGND)
-#ifndef MKSH_UNEMPLOYED
- && !Flag(FMONITOR)
-#endif
- ) {
- setsig(&sigtraps[SIGINT], SIG_IGN,
- SS_RESTORE_IGN|SS_FORCE);
- setsig(&sigtraps[SIGQUIT], SIG_IGN,
- SS_RESTORE_IGN|SS_FORCE);
- if ((!(flags & (XPIPEI | XCOPROC))) &&
- ((forksleep = open("/dev/null", 0)) > 0)) {
- (void)ksh_dup2(forksleep, 0, true);
- close(forksleep);
- }
- }
- /* in case of $(jobs) command */
- remove_job(j, "child");
-#ifndef MKSH_NOPROSPECTOFWORK
- /* remove_job needs SIGCHLD blocked still */
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
- nzombie = 0;
-#ifndef MKSH_UNEMPLOYED
- ttypgrp_ok = false;
- Flag(FMONITOR) = 0;
-#endif
- Flag(FTALKING) = 0;
- cleartraps();
- /* no return */
- execute(t, (flags & XERROK) | XEXEC, NULL);
-#ifndef MKSH_SMALL
- if (t->type == TPIPE)
- unwind(LLEAVE);
- internal_warningf("%s: %s", "exchild", "execute() returned");
- fptreef(shl_out, 8, "%s: tried to execute {\n\t%T\n}\n",
- "exchild", t);
- shf_flush(shl_out);
-#endif
- unwind(LLEAVE);
- /* NOTREACHED */
- }
-
- /* shell (parent) stuff */
- if (!(flags & XPIPEO)) {
- /* last process in a job */
- j_startjob(j);
- if (flags & XCOPROC) {
- j->coproc_id = coproc.id;
- /* n jobs using co-process output */
- coproc.njobs++;
- /* j using co-process input */
- coproc.job = (void *)j;
- }
- if (flags & XBGND) {
- j_set_async(j);
- if (Flag(FTALKING)) {
- shf_fprintf(shl_out, "[%d]", j->job);
- for (p = j->proc_list; p; p = p->next)
- shf_fprintf(shl_out, " %d",
- (int)p->pid);
- shf_putchar('\n', shl_out);
- shf_flush(shl_out);
- }
- } else
- rv = j_waitj(j, jwflags, "jw:last proc");
- }
-
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
-
- return (rv);
-}
-
-/* start the last job: only used for $(command) jobs */
-void
-startlast(void)
-{
-#ifndef MKSH_NOPROSPECTOFWORK
- sigset_t omask;
-
- sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
-#endif
-
- /* no need to report error - waitlast() will do it */
- if (last_job) {
- /* ensure it isn't removed by check_job() */
- last_job->flags |= JF_WAITING;
- j_startjob(last_job);
- }
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
-}
-
-/* wait for last job: only used for $(command) jobs */
-int
-waitlast(void)
-{
- int rv;
- Job *j;
-#ifndef MKSH_NOPROSPECTOFWORK
- sigset_t omask;
-
- sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
-#endif
-
- j = last_job;
- if (!j || !(j->flags & JF_STARTED)) {
- if (!j)
- warningf(true, "%s: %s", "waitlast", "no last job");
- else
- internal_warningf("%s: %s", "waitlast", "not started");
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
- /* not so arbitrary, non-zero value */
- return (125);
- }
-
- rv = j_waitj(j, JW_NONE, "waitlast");
-
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
-
- return (rv);
-}
-
-/* wait for child, interruptable. */
-int
-waitfor(const char *cp, int *sigp)
-{
- int rv, ecode, flags = JW_INTERRUPT|JW_ASYNCNOTIFY;
- Job *j;
-#ifndef MKSH_NOPROSPECTOFWORK
- sigset_t omask;
-
- sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
-#endif
-
- *sigp = 0;
-
- if (cp == NULL) {
- /*
- * wait for an unspecified job - always returns 0, so
- * don't have to worry about exited/signaled jobs
- */
- for (j = job_list; j; j = j->next)
- /* AT&T ksh will wait for stopped jobs - we don't */
- if (j->ppid == procpid && j->state == PRUNNING)
- break;
- if (!j) {
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
- return (-1);
- }
- } else if ((j = j_lookup(cp, &ecode))) {
- /* don't report normal job completion */
- flags &= ~JW_ASYNCNOTIFY;
- if (j->ppid != procpid) {
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
- return (-1);
- }
- } else {
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
- if (ecode != JL_NOSUCH)
- bi_errorf("%s: %s", cp, lookup_msgs[ecode]);
- return (-1);
- }
-
- /* AT&T ksh will wait for stopped jobs - we don't */
- rv = j_waitj(j, flags, "jw:waitfor");
-
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
-
- if (rv < 0)
- /* we were interrupted */
- *sigp = 128 + -rv;
-
- return (rv);
-}
-
-/* kill (built-in) a job */
-int
-j_kill(const char *cp, int sig)
-{
- Job *j;
- int rv = 0, ecode;
-#ifndef MKSH_NOPROSPECTOFWORK
- sigset_t omask;
-
- sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
-#endif
-
- if ((j = j_lookup(cp, &ecode)) == NULL) {
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
- bi_errorf("%s: %s", cp, lookup_msgs[ecode]);
- return (1);
- }
-
- if (j->pgrp == 0) {
- /* started when !Flag(FMONITOR) */
- if (kill_job(j, sig) < 0) {
- bi_errorf("%s: %s", cp, cstrerror(errno));
- rv = 1;
- }
- } else {
-#ifndef MKSH_UNEMPLOYED
- if (j->state == PSTOPPED && (sig == SIGTERM || sig == SIGHUP))
- mksh_killpg(j->pgrp, SIGCONT);
-#endif
- if (mksh_killpg(j->pgrp, sig) < 0) {
- bi_errorf("%s: %s", cp, cstrerror(errno));
- rv = 1;
- }
- }
-
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
-
- return (rv);
-}
-
-#ifndef MKSH_UNEMPLOYED
-/* fg and bg built-ins: called only if Flag(FMONITOR) set */
-int
-j_resume(const char *cp, int bg)
-{
- Job *j;
- Proc *p;
- int ecode, rv = 0;
- bool running;
- sigset_t omask;
-
- sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
-
- if ((j = j_lookup(cp, &ecode)) == NULL) {
- sigprocmask(SIG_SETMASK, &omask, NULL);
- bi_errorf("%s: %s", cp, lookup_msgs[ecode]);
- return (1);
- }
-
- if (j->pgrp == 0) {
- sigprocmask(SIG_SETMASK, &omask, NULL);
- bi_errorf("job not job-controlled");
- return (1);
- }
-
- if (bg)
- shprintf("[%d] ", j->job);
-
- running = false;
- for (p = j->proc_list; p != NULL; p = p->next) {
- if (p->state == PSTOPPED) {
- p->state = PRUNNING;
- p->status = 0;
- running = true;
- }
- shf_puts(p->command, shl_stdout);
- if (p->next)
- shf_puts("| ", shl_stdout);
- }
- shf_putc('\n', shl_stdout);
- shf_flush(shl_stdout);
- if (running)
- j->state = PRUNNING;
-
- put_job(j, PJ_PAST_STOPPED);
- if (bg)
- j_set_async(j);
- else {
- /* attach tty to job */
- if (j->state == PRUNNING) {
- if (ttypgrp_ok && (j->flags & JF_SAVEDTTY))
- mksh_tcset(tty_fd, &j->ttystat);
- /* See comment in j_waitj regarding saved_ttypgrp. */
- if (ttypgrp_ok &&
- tcsetpgrp(tty_fd, (j->flags & JF_SAVEDTTYPGRP) ?
- j->saved_ttypgrp : j->pgrp) < 0) {
- rv = errno;
- if (j->flags & JF_SAVEDTTY)
- mksh_tcset(tty_fd, &tty_state);
- sigprocmask(SIG_SETMASK, &omask, NULL);
- bi_errorf("%s %s(%d, %ld) %s: %s",
- "1st", "tcsetpgrp", tty_fd,
- (long)((j->flags & JF_SAVEDTTYPGRP) ?
- j->saved_ttypgrp : j->pgrp), "failed",
- cstrerror(rv));
- return (1);
- }
- }
- j->flags |= JF_FG;
- j->flags &= ~JF_KNOWN;
- if (j == async_job)
- async_job = NULL;
- }
-
- if (j->state == PRUNNING && mksh_killpg(j->pgrp, SIGCONT) < 0) {
- int eno = errno;
-
- if (!bg) {
- j->flags &= ~JF_FG;
- if (ttypgrp_ok && (j->flags & JF_SAVEDTTY))
- mksh_tcset(tty_fd, &tty_state);
- if (ttypgrp_ok && tcsetpgrp(tty_fd, kshpgrp) < 0)
- warningf(true, "%s %s(%d, %ld) %s: %s",
- "fg: 2nd", "tcsetpgrp", tty_fd,
- (long)kshpgrp, "failed", cstrerror(errno));
- }
- sigprocmask(SIG_SETMASK, &omask, NULL);
- bi_errorf("%s %s %s", "can't continue job",
- cp, cstrerror(eno));
- return (1);
- }
- if (!bg) {
- if (ttypgrp_ok) {
- j->flags &= ~(JF_SAVEDTTY | JF_SAVEDTTYPGRP);
- }
- rv = j_waitj(j, JW_NONE, "jw:resume");
- }
- sigprocmask(SIG_SETMASK, &omask, NULL);
- return (rv);
-}
-#endif
-
-/* are there any running or stopped jobs ? */
-int
-j_stopped_running(void)
-{
- Job *j;
- int which = 0;
-
- for (j = job_list; j != NULL; j = j->next) {
-#ifndef MKSH_UNEMPLOYED
- if (j->ppid == procpid && j->state == PSTOPPED)
- which |= 1;
-#endif
- if (Flag(FLOGIN) && !Flag(FNOHUP) && procpid == kshpid &&
- j->ppid == procpid && j->state == PRUNNING)
- which |= 2;
- }
- if (which) {
- shellf("You have %s%s%s jobs\n",
- which & 1 ? "stopped" : "",
- which == 3 ? " and " : "",
- which & 2 ? "running" : "");
- return (1);
- }
-
- return (0);
-}
-
-
-/* list jobs for jobs built-in */
-int
-j_jobs(const char *cp, int slp,
- /* 0: short, 1: long, 2: pgrp */
- int nflag)
-{
- Job *j, *tmp;
- int how, zflag = 0;
-#ifndef MKSH_NOPROSPECTOFWORK
- sigset_t omask;
-
- sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
-#endif
-
- if (nflag < 0) {
- /* kludge: print zombies */
- nflag = 0;
- zflag = 1;
- }
- if (cp) {
- int ecode;
-
- if ((j = j_lookup(cp, &ecode)) == NULL) {
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
- bi_errorf("%s: %s", cp, lookup_msgs[ecode]);
- return (1);
- }
- } else
- j = job_list;
- how = slp == 0 ? JP_MEDIUM : (slp == 1 ? JP_LONG : JP_PGRP);
- for (; j; j = j->next) {
- if ((!(j->flags & JF_ZOMBIE) || zflag) &&
- (!nflag || (j->flags & JF_CHANGED))) {
- j_print(j, how, shl_stdout);
- if (j->state == PEXITED || j->state == PSIGNALLED)
- j->flags |= JF_REMOVE;
- }
- if (cp)
- break;
- }
- /* Remove jobs after printing so there won't be multiple + or - jobs */
- for (j = job_list; j; j = tmp) {
- tmp = j->next;
- if (j->flags & JF_REMOVE)
- remove_job(j, "jobs");
- }
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
- return (0);
-}
-
-/* list jobs for top-level notification */
-void
-j_notify(void)
-{
- Job *j, *tmp;
-#ifndef MKSH_NOPROSPECTOFWORK
- sigset_t omask;
-
- sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
-#endif
- for (j = job_list; j; j = j->next) {
-#ifndef MKSH_UNEMPLOYED
- if (Flag(FMONITOR) && (j->flags & JF_CHANGED))
- j_print(j, JP_MEDIUM, shl_out);
-#endif
- /*
- * Remove job after doing reports so there aren't
- * multiple +/- jobs.
- */
- if (j->state == PEXITED || j->state == PSIGNALLED)
- j->flags |= JF_REMOVE;
- }
- for (j = job_list; j; j = tmp) {
- tmp = j->next;
- if (j->flags & JF_REMOVE)
- remove_job(j, "notify");
- }
- shf_flush(shl_out);
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
-}
-
-/* Return pid of last process in last asynchronous job */
-pid_t
-j_async(void)
-{
-#ifndef MKSH_NOPROSPECTOFWORK
- sigset_t omask;
-
- sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
-#endif
-
- if (async_job)
- async_job->flags |= JF_KNOWN;
-
-#ifndef MKSH_NOPROSPECTOFWORK
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
-
- return (async_pid);
-}
-
-/*
- * Make j the last async process
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-static void
-j_set_async(Job *j)
-{
- Job *jl, *oldest;
-
- if (async_job && (async_job->flags & (JF_KNOWN|JF_ZOMBIE)) == JF_ZOMBIE)
- remove_job(async_job, "async");
- if (!(j->flags & JF_STARTED)) {
- internal_warningf("%s: %s", "j_async", "job not started");
- return;
- }
- async_job = j;
- async_pid = j->last_proc->pid;
- while (nzombie > CHILD_MAX) {
- oldest = NULL;
- for (jl = job_list; jl; jl = jl->next)
- if (jl != async_job && (jl->flags & JF_ZOMBIE) &&
- (!oldest || jl->age < oldest->age))
- oldest = jl;
- if (!oldest) {
- /* XXX debugging */
- if (!(async_job->flags & JF_ZOMBIE) || nzombie != 1) {
- internal_warningf("%s: bad nzombie (%d)",
- "j_async", nzombie);
- nzombie = 0;
- }
- break;
- }
- remove_job(oldest, "zombie");
- }
-}
-
-/*
- * Start a job: set STARTED, check for held signals and set j->last_proc
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-static void
-j_startjob(Job *j)
-{
- Proc *p;
-
- j->flags |= JF_STARTED;
- for (p = j->proc_list; p->next; p = p->next)
- ;
- j->last_proc = p;
-
-#ifndef MKSH_NOPROSPECTOFWORK
- if (held_sigchld) {
- held_sigchld = 0;
- /* Don't call j_sigchld() as it may remove job... */
- kill(procpid, SIGCHLD);
- }
-#endif
-}
-
-/*
- * wait for job to complete or change state
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-static int
-j_waitj(Job *j,
- /* see JW_* */
- int flags,
- const char *where)
-{
- int rv;
-#ifdef MKSH_NO_SIGSUSPEND
- sigset_t omask;
-#endif
-
- /*
- * No auto-notify on the job we are waiting on.
- */
- j->flags |= JF_WAITING;
- if (flags & JW_ASYNCNOTIFY)
- j->flags |= JF_W_ASYNCNOTIFY;
-
-#ifndef MKSH_UNEMPLOYED
- if (!Flag(FMONITOR))
-#endif
- flags |= JW_STOPPEDWAIT;
-
- while (j->state == PRUNNING ||
- ((flags & JW_STOPPEDWAIT) && j->state == PSTOPPED)) {
-#ifndef MKSH_NOPROSPECTOFWORK
-#ifdef MKSH_NO_SIGSUSPEND
- sigprocmask(SIG_SETMASK, &sm_default, &omask);
- pause();
- /* note that handlers may run here so they need to know */
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#else
- sigsuspend(&sm_default);
-#endif
-#else
- j_sigchld(SIGCHLD);
-#endif
- if (fatal_trap) {
- int oldf = j->flags & (JF_WAITING|JF_W_ASYNCNOTIFY);
- j->flags &= ~(JF_WAITING|JF_W_ASYNCNOTIFY);
- runtraps(TF_FATAL);
- /* not reached... */
- j->flags |= oldf;
- }
- if ((flags & JW_INTERRUPT) && (rv = trap_pending())) {
- j->flags &= ~(JF_WAITING|JF_W_ASYNCNOTIFY);
- return (-rv);
- }
- }
- j->flags &= ~(JF_WAITING|JF_W_ASYNCNOTIFY);
-
- if (j->flags & JF_FG) {
- j->flags &= ~JF_FG;
-#ifndef MKSH_UNEMPLOYED
- if (Flag(FMONITOR) && ttypgrp_ok && j->pgrp) {
- /*
- * Save the tty's current pgrp so it can be restored
- * when the job is foregrounded. This is to
- * deal with things like the GNU su which does
- * a fork/exec instead of an exec (the fork means
- * the execed shell gets a different pid from its
- * pgrp, so naturally it sets its pgrp and gets hosed
- * when it gets foregrounded by the parent shell which
- * has restored the tty's pgrp to that of the su
- * process).
- */
- if (j->state == PSTOPPED &&
- (j->saved_ttypgrp = tcgetpgrp(tty_fd)) >= 0)
- j->flags |= JF_SAVEDTTYPGRP;
- if (tcsetpgrp(tty_fd, kshpgrp) < 0)
- warningf(true, "%s %s(%d, %ld) %s: %s",
- "j_waitj:", "tcsetpgrp", tty_fd,
- (long)kshpgrp, "failed", cstrerror(errno));
- if (j->state == PSTOPPED) {
- j->flags |= JF_SAVEDTTY;
- mksh_tcget(tty_fd, &j->ttystat);
- }
- }
-#endif
- if (tty_hasstate) {
- /*
- * Only restore tty settings if job was originally
- * started in the foreground. Problems can be
- * caused by things like 'more foobar &' which will
- * typically get and save the shell's vi/emacs tty
- * settings before setting up the tty for itself;
- * when more exits, it restores the 'original'
- * settings, and things go down hill from there...
- */
- if (j->state == PEXITED && j->status == 0 &&
- (j->flags & JF_USETTYMODE)) {
- mksh_tcget(tty_fd, &tty_state);
- } else {
- mksh_tcset(tty_fd, &tty_state);
- /*-
- * Don't use tty mode if job is stopped and
- * later restarted and exits. Consider
- * the sequence:
- * vi foo (stopped)
- * ...
- * stty something
- * ...
- * fg (vi; ZZ)
- * mode should be that of the stty, not what
- * was before the vi started.
- */
- if (j->state == PSTOPPED)
- j->flags &= ~JF_USETTYMODE;
- }
- }
-#ifndef MKSH_UNEMPLOYED
- /*
- * If it looks like user hit ^C to kill a job, pretend we got
- * one too to break out of for loops, etc. (AT&T ksh does this
- * even when not monitoring, but this doesn't make sense since
- * a tty generated ^C goes to the whole process group)
- */
- {
- int status;
-
- status = j->last_proc->status;
- if (Flag(FMONITOR) && j->state == PSIGNALLED &&
- WIFSIGNALED(status) &&
- (sigtraps[WTERMSIG(status)].flags & TF_TTY_INTR))
- trapsig(WTERMSIG(status));
- }
-#endif
- }
-
- j_usrtime = j->usrtime;
- j_systime = j->systime;
- rv = j->status;
-
- if ((flags & JW_PIPEST) && (j->proc_list != NULL)) {
- uint32_t num = 0;
- Proc *p = j->proc_list;
- struct tbl *vp;
-
- unset(vp_pipest, 1);
- vp = vp_pipest;
- vp->flag = DEFINED | ISSET | INTEGER | RDONLY | ARRAY | INT_U;
- goto got_array;
-
- while (p != NULL) {
- {
- struct tbl *vq;
-
- /* strlen(vp_pipest->name) == 10 */
- vq = alloc(offsetof(struct tbl, name[0]) + 11,
- vp_pipest->areap);
- memset(vq, 0, offsetof(struct tbl, name[0]));
- memcpy(vq->name, vp_pipest->name, 11);
- vp->u.array = vq;
- vp = vq;
- }
- vp->areap = vp_pipest->areap;
- vp->ua.index = ++num;
- vp->flag = DEFINED | ISSET | INTEGER | RDONLY |
- ARRAY | INT_U | AINDEX;
- got_array:
- vp->val.i = proc_errorlevel(p);
- if (Flag(FPIPEFAIL) && vp->val.i)
- rv = vp->val.i;
- p = p->next;
- }
- }
-
- if (!(flags & JW_ASYNCNOTIFY)
-#ifndef MKSH_UNEMPLOYED
- && (!Flag(FMONITOR) || j->state != PSTOPPED)
-#endif
- ) {
- j_print(j, JP_SHORT, shl_out);
- shf_flush(shl_out);
- }
- if (j->state != PSTOPPED
-#ifndef MKSH_UNEMPLOYED
- && (!Flag(FMONITOR) || !(flags & JW_ASYNCNOTIFY))
-#endif
- )
- remove_job(j, where);
-
- return (rv);
-}
-
-/*
- * SIGCHLD handler to reap children and update job states
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-/* ARGSUSED */
-static void
-j_sigchld(int sig MKSH_A_UNUSED)
-{
- int saved_errno = errno;
- Job *j;
- Proc *p = NULL;
- pid_t pid;
- int status;
- struct rusage ru0, ru1;
-#ifdef MKSH_NO_SIGSUSPEND
- sigset_t omask;
-
- /* this handler can run while SIGCHLD is not blocked, so block it now */
- sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
-#endif
-
-#ifndef MKSH_NOPROSPECTOFWORK
- /*
- * Don't wait for any processes if a job is partially started.
- * This is so we don't do away with the process group leader
- * before all the processes in a pipe line are started (so the
- * setpgid() won't fail)
- */
- for (j = job_list; j; j = j->next)
- if (j->ppid == procpid && !(j->flags & JF_STARTED)) {
- held_sigchld = 1;
- goto j_sigchld_out;
- }
-#endif
-
- getrusage(RUSAGE_CHILDREN, &ru0);
- do {
-#ifndef MKSH_NOPROSPECTOFWORK
- pid = waitpid(-1, &status, (WNOHANG|WUNTRACED));
-#else
- pid = wait(&status);
-#endif
-
- /*
- * return if this would block (0) or no children
- * or interrupted (-1)
- */
- if (pid <= 0)
- goto j_sigchld_out;
-
- getrusage(RUSAGE_CHILDREN, &ru1);
-
- /* find job and process structures for this pid */
- for (j = job_list; j != NULL; j = j->next)
- for (p = j->proc_list; p != NULL; p = p->next)
- if (p->pid == pid)
- goto found;
- found:
- if (j == NULL) {
- /* Can occur if process has kids, then execs shell
- warningf(true, "bad process waited for (pid = %d)",
- pid);
- */
- ru0 = ru1;
- continue;
- }
-
- timeradd(&j->usrtime, &ru1.ru_utime, &j->usrtime);
- timersub(&j->usrtime, &ru0.ru_utime, &j->usrtime);
- timeradd(&j->systime, &ru1.ru_stime, &j->systime);
- timersub(&j->systime, &ru0.ru_stime, &j->systime);
- ru0 = ru1;
- p->status = status;
-#ifndef MKSH_UNEMPLOYED
- if (WIFSTOPPED(status))
- p->state = PSTOPPED;
- else
-#endif
- if (WIFSIGNALED(status))
- p->state = PSIGNALLED;
- else
- p->state = PEXITED;
-
- /* check to see if entire job is done */
- check_job(j);
- }
-#ifndef MKSH_NOPROSPECTOFWORK
- while (/* CONSTCOND */ 1);
-#else
- while (/* CONSTCOND */ 0);
-#endif
-
- j_sigchld_out:
-#ifdef MKSH_NO_SIGSUSPEND
- sigprocmask(SIG_SETMASK, &omask, NULL);
-#endif
- errno = saved_errno;
-}
-
-/*
- * Called only when a process in j has exited/stopped (ie, called only
- * from j_sigchld()). If no processes are running, the job status
- * and state are updated, asynchronous job notification is done and,
- * if unneeded, the job is removed.
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-static void
-check_job(Job *j)
-{
- int jstate;
- Proc *p;
-
- /* XXX debugging (nasty - interrupt routine using shl_out) */
- if (!(j->flags & JF_STARTED)) {
- internal_warningf("check_job: job started (flags 0x%x)",
- j->flags);
- return;
- }
-
- jstate = PRUNNING;
- for (p=j->proc_list; p != NULL; p = p->next) {
- if (p->state == PRUNNING)
- /* some processes still running */
- return;
- if (p->state > jstate)
- jstate = p->state;
- }
- j->state = jstate;
- j->status = proc_errorlevel(j->last_proc);
-
- /*
- * Note when co-process dies: can't be done in j_wait() nor
- * remove_job() since neither may be called for non-interactive
- * shells.
- */
- if (j->state == PEXITED || j->state == PSIGNALLED) {
- /*
- * No need to keep co-process input any more
- * (at least, this is what ksh93d thinks)
- */
- if (coproc.job == j) {
- coproc.job = NULL;
- /*
- * XXX would be nice to get the closes out of here
- * so they aren't done in the signal handler.
- * Would mean a check in coproc_getfd() to
- * do "if job == 0 && write >= 0, close write".
- */
- coproc_write_close(coproc.write);
- }
- /* Do we need to keep the output? */
- if (j->coproc_id && j->coproc_id == coproc.id &&
- --coproc.njobs == 0)
- coproc_readw_close(coproc.read);
- }
-
- j->flags |= JF_CHANGED;
-#ifndef MKSH_UNEMPLOYED
- if (Flag(FMONITOR) && !(j->flags & JF_XXCOM)) {
- /*
- * Only put stopped jobs at the front to avoid confusing
- * the user (don't want finished jobs effecting %+ or %-)
- */
- if (j->state == PSTOPPED)
- put_job(j, PJ_ON_FRONT);
- if (Flag(FNOTIFY) &&
- (j->flags & (JF_WAITING|JF_W_ASYNCNOTIFY)) != JF_WAITING) {
- /* Look for the real file descriptor 2 */
- {
- struct env *ep;
- int fd = 2;
-
- for (ep = e; ep; ep = ep->oenv)
- if (ep->savefd && ep->savefd[2])
- fd = ep->savefd[2];
- shf_reopen(fd, SHF_WR, shl_j);
- }
- /*
- * Can't call j_notify() as it removes jobs. The job
- * must stay in the job list as j_waitj() may be
- * running with this job.
- */
- j_print(j, JP_MEDIUM, shl_j);
- shf_flush(shl_j);
- if (!(j->flags & JF_WAITING) && j->state != PSTOPPED)
- remove_job(j, "notify");
- }
- }
-#endif
- if (
-#ifndef MKSH_UNEMPLOYED
- !Flag(FMONITOR) &&
-#endif
- !(j->flags & (JF_WAITING|JF_FG)) &&
- j->state != PSTOPPED) {
- if (j == async_job || (j->flags & JF_KNOWN)) {
- j->flags |= JF_ZOMBIE;
- j->job = -1;
- nzombie++;
- } else
- remove_job(j, "checkjob");
- }
-}
-
-/*
- * Print job status in either short, medium or long format.
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-static void
-j_print(Job *j, int how, struct shf *shf)
-{
- Proc *p;
- int state;
- int status;
- int coredumped;
- char jobchar = ' ';
- char buf[64];
- const char *filler;
- int output = 0;
-
- if (how == JP_PGRP) {
- /*
- * POSIX doesn't say what to do it there is no process
- * group leader (ie, !FMONITOR). We arbitrarily return
- * last pid (which is what $! returns).
- */
- shf_fprintf(shf, "%d\n", (int)(j->pgrp ? j->pgrp :
- (j->last_proc ? j->last_proc->pid : 0)));
- return;
- }
- j->flags &= ~JF_CHANGED;
- filler = j->job > 10 ? "\n " : "\n ";
- if (j == job_list)
- jobchar = '+';
- else if (j == job_list->next)
- jobchar = '-';
-
- for (p = j->proc_list; p != NULL;) {
- coredumped = 0;
- switch (p->state) {
- case PRUNNING:
- memcpy(buf, "Running", 8);
- break;
- case PSTOPPED:
- strlcpy(buf, sigtraps[WSTOPSIG(p->status)].mess,
- sizeof(buf));
- break;
- case PEXITED:
- if (how == JP_SHORT)
- buf[0] = '\0';
- else if (WEXITSTATUS(p->status) == 0)
- memcpy(buf, "Done", 5);
- else
- shf_snprintf(buf, sizeof(buf), "Done (%d)",
- WEXITSTATUS(p->status));
- break;
- case PSIGNALLED:
-#ifdef WCOREDUMP
- if (WCOREDUMP(p->status))
- coredumped = 1;
-#endif
- /*
- * kludge for not reporting 'normal termination
- * signals' (i.e. SIGINT, SIGPIPE)
- */
- if (how == JP_SHORT && !coredumped &&
- (WTERMSIG(p->status) == SIGINT ||
- WTERMSIG(p->status) == SIGPIPE)) {
- buf[0] = '\0';
- } else
- strlcpy(buf, sigtraps[WTERMSIG(p->status)].mess,
- sizeof(buf));
- break;
- default:
- buf[0] = '\0';
- }
-
- if (how != JP_SHORT) {
- if (p == j->proc_list)
- shf_fprintf(shf, "[%d] %c ", j->job, jobchar);
- else
- shf_puts(filler, shf);
- }
-
- if (how == JP_LONG)
- shf_fprintf(shf, "%5d ", (int)p->pid);
-
- if (how == JP_SHORT) {
- if (buf[0]) {
- output = 1;
- shf_fprintf(shf, "%s%s ",
- buf, coredumped ? " (core dumped)" : null);
- }
- } else {
- output = 1;
- shf_fprintf(shf, "%-20s %s%s%s", buf, p->command,
- p->next ? "|" : null,
- coredumped ? " (core dumped)" : null);
- }
-
- state = p->state;
- status = p->status;
- p = p->next;
- while (p && p->state == state && p->status == status) {
- if (how == JP_LONG)
- shf_fprintf(shf, "%s%5d %-20s %s%s", filler,
- (int)p->pid, " ", p->command,
- p->next ? "|" : null);
- else if (how == JP_MEDIUM)
- shf_fprintf(shf, " %s%s", p->command,
- p->next ? "|" : null);
- p = p->next;
- }
- }
- if (output)
- shf_putc('\n', shf);
-}
-
-/*
- * Convert % sequence to job
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-static Job *
-j_lookup(const char *cp, int *ecodep)
-{
- Job *j, *last_match;
- Proc *p;
- size_t len;
- int job = 0;
-
- if (ksh_isdigit(*cp)) {
- getn(cp, &job);
- /* Look for last_proc->pid (what $! returns) first... */
- for (j = job_list; j != NULL; j = j->next)
- if (j->last_proc && j->last_proc->pid == job)
- return (j);
- /*
- * ...then look for process group (this is non-POSIX,
- * but should not break anything
- */
- for (j = job_list; j != NULL; j = j->next)
- if (j->pgrp && j->pgrp == job)
- return (j);
- if (ecodep)
- *ecodep = JL_NOSUCH;
- return (NULL);
- }
- if (*cp != '%') {
- if (ecodep)
- *ecodep = JL_INVALID;
- return (NULL);
- }
- switch (*++cp) {
- case '\0': /* non-standard */
- case '+':
- case '%':
- if (job_list != NULL)
- return (job_list);
- break;
-
- case '-':
- if (job_list != NULL && job_list->next)
- return (job_list->next);
- break;
-
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- getn(cp, &job);
- for (j = job_list; j != NULL; j = j->next)
- if (j->job == job)
- return (j);
- break;
-
- /* %?string */
- case '?':
- last_match = NULL;
- for (j = job_list; j != NULL; j = j->next)
- for (p = j->proc_list; p != NULL; p = p->next)
- if (strstr(p->command, cp+1) != NULL) {
- if (last_match) {
- if (ecodep)
- *ecodep = JL_AMBIG;
- return (NULL);
- }
- last_match = j;
- }
- if (last_match)
- return (last_match);
- break;
-
- /* %string */
- default:
- len = strlen(cp);
- last_match = NULL;
- for (j = job_list; j != NULL; j = j->next)
- if (strncmp(cp, j->proc_list->command, len) == 0) {
- if (last_match) {
- if (ecodep)
- *ecodep = JL_AMBIG;
- return (NULL);
- }
- last_match = j;
- }
- if (last_match)
- return (last_match);
- break;
- }
- if (ecodep)
- *ecodep = JL_NOSUCH;
- return (NULL);
-}
-
-static Job *free_jobs;
-static Proc *free_procs;
-
-/*
- * allocate a new job and fill in the job number.
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-static Job *
-new_job(void)
-{
- int i;
- Job *newj, *j;
-
- if (free_jobs != NULL) {
- newj = free_jobs;
- free_jobs = free_jobs->next;
- } else
- newj = alloc(sizeof(Job), APERM);
-
- /* brute force method */
- for (i = 1; ; i++) {
- for (j = job_list; j && j->job != i; j = j->next)
- ;
- if (j == NULL)
- break;
- }
- newj->job = i;
-
- return (newj);
-}
-
-/*
- * Allocate new process struct
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-static Proc *
-new_proc(void)
-{
- Proc *p;
-
- if (free_procs != NULL) {
- p = free_procs;
- free_procs = free_procs->next;
- } else
- p = alloc(sizeof(Proc), APERM);
-
- return (p);
-}
-
-/*
- * Take job out of job_list and put old structures into free list.
- * Keeps nzombies, last_job and async_job up to date.
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-static void
-remove_job(Job *j, const char *where)
-{
- Proc *p, *tmp;
- Job **prev, *curr;
-
- mkssert(j != NULL);
- prev = &job_list;
- curr = job_list;
- while (curr && curr != j) {
- prev = &curr->next;
- curr = *prev;
- }
- if (curr != j) {
- internal_warningf("remove_job: job %s (%s)", "not found", where);
- return;
- }
- *prev = curr->next;
-
- /* free up proc structures */
- for (p = j->proc_list; p != NULL; ) {
- tmp = p;
- p = p->next;
- tmp->next = free_procs;
- free_procs = tmp;
- }
-
- if ((j->flags & JF_ZOMBIE) && j->ppid == procpid)
- --nzombie;
- j->next = free_jobs;
- free_jobs = j;
-
- if (j == last_job)
- last_job = NULL;
- if (j == async_job)
- async_job = NULL;
-}
-
-/*
- * put j in a particular location (taking it out job_list if it is there
- * already)
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-static void
-put_job(Job *j, int where)
-{
- Job **prev, *curr;
-
- mkssert(j != NULL);
- /* Remove job from list (if there) */
- prev = &job_list;
- curr = job_list;
- while (curr && curr != j) {
- prev = &curr->next;
- curr = *prev;
- }
- if (curr == j)
- *prev = curr->next;
-
- switch (where) {
- case PJ_ON_FRONT:
- j->next = job_list;
- job_list = j;
- break;
-
- case PJ_PAST_STOPPED:
- prev = &job_list;
- curr = job_list;
- for (; curr && curr->state == PSTOPPED; prev = &curr->next,
- curr = *prev)
- ;
- j->next = curr;
- *prev = j;
- break;
- }
-}
-
-/*
- * nuke a job (called when unable to start full job).
- *
- * If jobs are compiled in then this routine expects sigchld to be blocked.
- */
-static int
-kill_job(Job *j, int sig)
-{
- Proc *p;
- int rval = 0;
-
- for (p = j->proc_list; p != NULL; p = p->next)
- if (p->pid != 0)
- if (kill(p->pid, sig) < 0)
- rval = -1;
- return (rval);
-}
-
-static void
-tty_init_talking(void)
-{
- switch (tty_init_fd()) {
- case 0:
- break;
- case 1:
-#ifndef MKSH_DISABLE_TTY_WARNING
- warningf(false, "%s: %s %s: %s",
- "No controlling tty", "open", "/dev/tty",
- cstrerror(errno));
-#endif
- break;
- case 2:
-#ifndef MKSH_DISABLE_TTY_WARNING
- warningf(false, "%s: %s", "can't find tty fd", cstrerror(errno));
-#endif
- break;
- case 3:
- warningf(false, "%s: %s %s: %s", "j_ttyinit",
- "dup of tty fd", "failed", cstrerror(errno));
- break;
- case 4:
- warningf(false, "%s: %s: %s", "j_ttyinit",
- "can't set close-on-exec flag", cstrerror(errno));
- break;
- }
-}
-
-static void
-tty_init_state(void)
-{
- if (tty_fd >= 0) {
- mksh_tcget(tty_fd, &tty_state);
- tty_hasstate = true;
- }
-}
Copied: vendor/MirOS/mksh/R50/jobs.c (from rev 6707, vendor/MirOS/mksh/dist/jobs.c)
===================================================================
--- vendor/MirOS/mksh/R50/jobs.c (rev 0)
+++ vendor/MirOS/mksh/R50/jobs.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1918 @@
+/* $OpenBSD: jobs.c,v 1.40 2013/09/04 15:49:18 millert Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011,
+ * 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+
+__RCSID("$MirOS: src/bin/mksh/jobs.c,v 1.104 2014/06/10 22:17:09 tg Exp $");
+
+#if HAVE_KILLPG
+#define mksh_killpg killpg
+#else
+/* cross fingers and hope kill is killpg-endowed */
+#define mksh_killpg(p,s) kill(-(p), (s))
+#endif
+
+/* Order important! */
+#define PRUNNING 0
+#define PEXITED 1
+#define PSIGNALLED 2
+#define PSTOPPED 3
+
+typedef struct proc Proc;
+struct proc {
+ Proc *next; /* next process in pipeline (if any) */
+ pid_t pid; /* process id */
+ int state;
+ int status; /* wait status */
+ /* process command string from vistree */
+ char command[256 - (ALLOC_SIZE + sizeof(Proc *) + sizeof(pid_t) +
+ 2 * sizeof(int))];
+};
+
+/* Notify/print flag - j_print() argument */
+#define JP_SHORT 1 /* print signals processes were killed by */
+#define JP_MEDIUM 2 /* print [job-num] -/+ command */
+#define JP_LONG 3 /* print [job-num] -/+ pid command */
+#define JP_PGRP 4 /* print pgrp */
+
+/* put_job() flags */
+#define PJ_ON_FRONT 0 /* at very front */
+#define PJ_PAST_STOPPED 1 /* just past any stopped jobs */
+
+/* Job.flags values */
+#define JF_STARTED 0x001 /* set when all processes in job are started */
+#define JF_WAITING 0x002 /* set if j_waitj() is waiting on job */
+#define JF_W_ASYNCNOTIFY 0x004 /* set if waiting and async notification ok */
+#define JF_XXCOM 0x008 /* set for $(command) jobs */
+#define JF_FG 0x010 /* running in foreground (also has tty pgrp) */
+#define JF_SAVEDTTY 0x020 /* j->ttystat is valid */
+#define JF_CHANGED 0x040 /* process has changed state */
+#define JF_KNOWN 0x080 /* $! referenced */
+#define JF_ZOMBIE 0x100 /* known, unwaited process */
+#define JF_REMOVE 0x200 /* flagged for removal (j_jobs()/j_noityf()) */
+#define JF_USETTYMODE 0x400 /* tty mode saved if process exits normally */
+#define JF_SAVEDTTYPGRP 0x800 /* j->saved_ttypgrp is valid */
+
+typedef struct job Job;
+struct job {
+ Job *next; /* next job in list */
+ Proc *proc_list; /* process list */
+ Proc *last_proc; /* last process in list */
+ struct timeval systime; /* system time used by job */
+ struct timeval usrtime; /* user time used by job */
+ pid_t pgrp; /* process group of job */
+ pid_t ppid; /* pid of process that forked job */
+ int job; /* job number: %n */
+ int flags; /* see JF_* */
+ volatile int state; /* job state */
+ int status; /* exit status of last process */
+ int32_t age; /* number of jobs started */
+ Coproc_id coproc_id; /* 0 or id of coprocess output pipe */
+#ifndef MKSH_UNEMPLOYED
+ mksh_ttyst ttystat; /* saved tty state for stopped jobs */
+ pid_t saved_ttypgrp; /* saved tty process group for stopped jobs */
+#endif
+};
+
+/* Flags for j_waitj() */
+#define JW_NONE 0x00
+#define JW_INTERRUPT 0x01 /* ^C will stop the wait */
+#define JW_ASYNCNOTIFY 0x02 /* asynchronous notification during wait ok */
+#define JW_STOPPEDWAIT 0x04 /* wait even if job stopped */
+#define JW_PIPEST 0x08 /* want PIPESTATUS */
+
+/* Error codes for j_lookup() */
+#define JL_NOSUCH 0 /* no such job */
+#define JL_AMBIG 1 /* %foo or %?foo is ambiguous */
+#define JL_INVALID 2 /* non-pid, non-% job id */
+
+static const char * const lookup_msgs[] = {
+ "no such job",
+ "ambiguous",
+ "argument must be %job or process id"
+};
+
+static Job *job_list; /* job list */
+static Job *last_job;
+static Job *async_job;
+static pid_t async_pid;
+
+static int nzombie; /* # of zombies owned by this process */
+static int32_t njobs; /* # of jobs started */
+
+#ifndef CHILD_MAX
+#define CHILD_MAX 25
+#endif
+
+#ifndef MKSH_NOPROSPECTOFWORK
+/* held_sigchld is set if sigchld occurs before a job is completely started */
+static volatile sig_atomic_t held_sigchld;
+#endif
+
+#ifndef MKSH_UNEMPLOYED
+static struct shf *shl_j;
+static bool ttypgrp_ok; /* set if can use tty pgrps */
+static pid_t restore_ttypgrp = -1;
+static int const tt_sigs[] = { SIGTSTP, SIGTTIN, SIGTTOU };
+#endif
+
+static void j_set_async(Job *);
+static void j_startjob(Job *);
+static int j_waitj(Job *, int, const char *);
+static void j_sigchld(int);
+static void j_print(Job *, int, struct shf *);
+static Job *j_lookup(const char *, int *);
+static Job *new_job(void);
+static Proc *new_proc(void);
+static void check_job(Job *);
+static void put_job(Job *, int);
+static void remove_job(Job *, const char *);
+static int kill_job(Job *, int);
+
+static void tty_init_talking(void);
+static void tty_init_state(void);
+
+/* initialise job control */
+void
+j_init(void)
+{
+#ifndef MKSH_UNEMPLOYED
+ bool mflagset = Flag(FMONITOR) != 127;
+
+ Flag(FMONITOR) = 0;
+#endif
+
+#ifndef MKSH_NOPROSPECTOFWORK
+ (void)sigemptyset(&sm_default);
+ sigprocmask(SIG_SETMASK, &sm_default, NULL);
+
+ (void)sigemptyset(&sm_sigchld);
+ (void)sigaddset(&sm_sigchld, SIGCHLD);
+
+ setsig(&sigtraps[SIGCHLD], j_sigchld,
+ SS_RESTORE_ORIG|SS_FORCE|SS_SHTRAP);
+#else
+ /* Make sure SIGCHLD isn't ignored - can do odd things under SYSV */
+ setsig(&sigtraps[SIGCHLD], SIG_DFL, SS_RESTORE_ORIG|SS_FORCE);
+#endif
+
+#ifndef MKSH_UNEMPLOYED
+ if (!mflagset && Flag(FTALKING))
+ Flag(FMONITOR) = 1;
+
+ /*
+ * shl_j is used to do asynchronous notification (used in
+ * an interrupt handler, so need a distinct shf)
+ */
+ shl_j = shf_fdopen(2, SHF_WR, NULL);
+
+ if (Flag(FMONITOR) || Flag(FTALKING)) {
+ int i;
+
+ /*
+ * the TF_SHELL_USES test is a kludge that lets us know if
+ * if the signals have been changed by the shell.
+ */
+ for (i = NELEM(tt_sigs); --i >= 0; ) {
+ sigtraps[tt_sigs[i]].flags |= TF_SHELL_USES;
+ /* j_change() sets this to SS_RESTORE_DFL if FMONITOR */
+ setsig(&sigtraps[tt_sigs[i]], SIG_IGN,
+ SS_RESTORE_IGN|SS_FORCE);
+ }
+ }
+
+ /* j_change() calls tty_init_talking() and tty_init_state() */
+ if (Flag(FMONITOR))
+ j_change();
+ else
+#endif
+ if (Flag(FTALKING)) {
+ tty_init_talking();
+ tty_init_state();
+ }
+}
+
+static int
+proc_errorlevel(Proc *p)
+{
+ switch (p->state) {
+ case PEXITED:
+ return (WEXITSTATUS(p->status));
+ case PSIGNALLED:
+ return (128 + WTERMSIG(p->status));
+ default:
+ return (0);
+ }
+}
+
+#if !defined(MKSH_UNEMPLOYED) && HAVE_GETSID
+/* suspend the shell */
+void
+j_suspend(void)
+{
+ struct sigaction sa, osa;
+
+ /* Restore tty and pgrp. */
+ if (ttypgrp_ok) {
+ if (tty_hasstate)
+ mksh_tcset(tty_fd, &tty_state);
+ if (restore_ttypgrp >= 0) {
+ if (tcsetpgrp(tty_fd, restore_ttypgrp) < 0) {
+ warningf(false, "%s: %s %s: %s", "j_suspend",
+ "tcsetpgrp", "failed", cstrerror(errno));
+ } else if (setpgid(0, restore_ttypgrp) < 0) {
+ warningf(false, "%s: %s %s: %s", "j_suspend",
+ "setpgid", "failed", cstrerror(errno));
+ }
+ }
+ }
+
+ /* Suspend the shell. */
+ memset(&sa, 0, sizeof(sa));
+ sigemptyset(&sa.sa_mask);
+ sa.sa_handler = SIG_DFL;
+ sigaction(SIGTSTP, &sa, &osa);
+ kill(0, SIGTSTP);
+
+ /* Back from suspend, reset signals, pgrp and tty. */
+ sigaction(SIGTSTP, &osa, NULL);
+ if (ttypgrp_ok) {
+ if (restore_ttypgrp >= 0) {
+ if (setpgid(0, kshpid) < 0) {
+ warningf(false, "%s: %s %s: %s", "j_suspend",
+ "setpgid", "failed", cstrerror(errno));
+ ttypgrp_ok = false;
+ } else if (tcsetpgrp(tty_fd, kshpid) < 0) {
+ warningf(false, "%s: %s %s: %s", "j_suspend",
+ "tcsetpgrp", "failed", cstrerror(errno));
+ ttypgrp_ok = false;
+ }
+ }
+ tty_init_state();
+ }
+}
+#endif
+
+/* job cleanup before shell exit */
+void
+j_exit(void)
+{
+ /* kill stopped, and possibly running, jobs */
+ Job *j;
+ bool killed = false;
+
+ for (j = job_list; j != NULL; j = j->next) {
+ if (j->ppid == procpid &&
+ (j->state == PSTOPPED ||
+ (j->state == PRUNNING &&
+ ((j->flags & JF_FG) ||
+ (Flag(FLOGIN) && !Flag(FNOHUP) && procpid == kshpid))))) {
+ killed = true;
+ if (j->pgrp == 0)
+ kill_job(j, SIGHUP);
+ else
+ mksh_killpg(j->pgrp, SIGHUP);
+#ifndef MKSH_UNEMPLOYED
+ if (j->state == PSTOPPED) {
+ if (j->pgrp == 0)
+ kill_job(j, SIGCONT);
+ else
+ mksh_killpg(j->pgrp, SIGCONT);
+ }
+#endif
+ }
+ }
+ if (killed)
+ sleep(1);
+ j_notify();
+
+#ifndef MKSH_UNEMPLOYED
+ if (kshpid == procpid && restore_ttypgrp >= 0) {
+ /*
+ * Need to restore the tty pgrp to what it was when the
+ * shell started up, so that the process that started us
+ * will be able to access the tty when we are done.
+ * Also need to restore our process group in case we are
+ * about to do an exec so that both our parent and the
+ * process we are to become will be able to access the tty.
+ */
+ tcsetpgrp(tty_fd, restore_ttypgrp);
+ setpgid(0, restore_ttypgrp);
+ }
+ if (Flag(FMONITOR)) {
+ Flag(FMONITOR) = 0;
+ j_change();
+ }
+#endif
+}
+
+#ifndef MKSH_UNEMPLOYED
+/* turn job control on or off according to Flag(FMONITOR) */
+void
+j_change(void)
+{
+ int i;
+
+ if (Flag(FMONITOR)) {
+ bool use_tty = Flag(FTALKING);
+
+ /* don't call mksh_tcget until we own the tty process group */
+ if (use_tty)
+ tty_init_talking();
+
+ /* no controlling tty, no SIGT* */
+ if ((ttypgrp_ok = (use_tty && tty_fd >= 0 && tty_devtty))) {
+ setsig(&sigtraps[SIGTTIN], SIG_DFL,
+ SS_RESTORE_ORIG|SS_FORCE);
+ /* wait to be given tty (POSIX.1, B.2, job control) */
+ while (/* CONSTCOND */ 1) {
+ pid_t ttypgrp;
+
+ if ((ttypgrp = tcgetpgrp(tty_fd)) < 0) {
+ warningf(false, "%s: %s %s: %s",
+ "j_init", "tcgetpgrp", "failed",
+ cstrerror(errno));
+ ttypgrp_ok = false;
+ break;
+ }
+ if (ttypgrp == kshpgrp)
+ break;
+ kill(0, SIGTTIN);
+ }
+ }
+ for (i = NELEM(tt_sigs); --i >= 0; )
+ setsig(&sigtraps[tt_sigs[i]], SIG_IGN,
+ SS_RESTORE_DFL|SS_FORCE);
+ if (ttypgrp_ok && kshpgrp != kshpid) {
+ if (setpgid(0, kshpid) < 0) {
+ warningf(false, "%s: %s %s: %s", "j_init",
+ "setpgid", "failed", cstrerror(errno));
+ ttypgrp_ok = false;
+ } else {
+ if (tcsetpgrp(tty_fd, kshpid) < 0) {
+ warningf(false, "%s: %s %s: %s",
+ "j_init", "tcsetpgrp", "failed",
+ cstrerror(errno));
+ ttypgrp_ok = false;
+ } else
+ restore_ttypgrp = kshpgrp;
+ kshpgrp = kshpid;
+ }
+ }
+#ifndef MKSH_DISABLE_TTY_WARNING
+ if (use_tty && !ttypgrp_ok)
+ warningf(false, "%s: %s", "warning",
+ "won't have full job control");
+#endif
+ } else {
+ ttypgrp_ok = false;
+ if (Flag(FTALKING))
+ for (i = NELEM(tt_sigs); --i >= 0; )
+ setsig(&sigtraps[tt_sigs[i]], SIG_IGN,
+ SS_RESTORE_IGN|SS_FORCE);
+ else
+ for (i = NELEM(tt_sigs); --i >= 0; ) {
+ if (sigtraps[tt_sigs[i]].flags &
+ (TF_ORIG_IGN | TF_ORIG_DFL))
+ setsig(&sigtraps[tt_sigs[i]],
+ (sigtraps[tt_sigs[i]].flags & TF_ORIG_IGN) ?
+ SIG_IGN : SIG_DFL,
+ SS_RESTORE_ORIG|SS_FORCE);
+ }
+ }
+ tty_init_state();
+}
+#endif
+
+#if HAVE_NICE
+/* run nice(3) and ignore the result */
+static void
+ksh_nice(int ness)
+{
+#if defined(__USE_FORTIFY_LEVEL) && (__USE_FORTIFY_LEVEL > 0)
+ int eno;
+
+ errno = 0;
+ /* this is gonna annoy users; complain to your distro, people! */
+ if (nice(ness) == -1 && (eno = errno) != 0)
+ warningf(false, "%s: %s", "bgnice", cstrerror(eno));
+#else
+ (void)nice(ness);
+#endif
+}
+#endif
+
+/* execute tree in child subprocess */
+int
+exchild(struct op *t, int flags,
+ volatile int *xerrok,
+ /* used if XPCLOSE or XCCLOSE */
+ int close_fd)
+{
+ /* for pipelines */
+ static Proc *last_proc;
+
+ int rv = 0, forksleep, jwflags = JW_NONE;
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigset_t omask;
+#endif
+ Proc *p;
+ Job *j;
+ pid_t cldpid;
+
+ if (flags & XPIPEST) {
+ flags &= ~XPIPEST;
+ jwflags |= JW_PIPEST;
+ }
+
+ if (flags & XEXEC)
+ /*
+ * Clear XFORK|XPCLOSE|XCCLOSE|XCOPROC|XPIPEO|XPIPEI|XXCOM|XBGND
+ * (also done in another execute() below)
+ */
+ return (execute(t, flags & (XEXEC | XERROK), xerrok));
+
+#ifndef MKSH_NOPROSPECTOFWORK
+ /* no SIGCHLDs while messing with job and process lists */
+ sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
+#endif
+
+ p = new_proc();
+ p->next = NULL;
+ p->state = PRUNNING;
+ p->status = 0;
+ p->pid = 0;
+
+ /* link process into jobs list */
+ if (flags & XPIPEI) {
+ /* continuing with a pipe */
+ if (!last_job)
+ internal_errorf("%s %d",
+ "exchild: XPIPEI and no last_job - pid",
+ (int)procpid);
+ j = last_job;
+ if (last_proc)
+ last_proc->next = p;
+ last_proc = p;
+ } else {
+ /* fills in j->job */
+ j = new_job();
+ /*
+ * we don't consider XXCOMs foreground since they don't get
+ * tty process group and we don't save or restore tty modes.
+ */
+ j->flags = (flags & XXCOM) ? JF_XXCOM :
+ ((flags & XBGND) ? 0 : (JF_FG|JF_USETTYMODE));
+ timerclear(&j->usrtime);
+ timerclear(&j->systime);
+ j->state = PRUNNING;
+ j->pgrp = 0;
+ j->ppid = procpid;
+ j->age = ++njobs;
+ j->proc_list = p;
+ j->coproc_id = 0;
+ last_job = j;
+ last_proc = p;
+ put_job(j, PJ_PAST_STOPPED);
+ }
+
+ vistree(p->command, sizeof(p->command), t);
+
+ /* create child process */
+ forksleep = 1;
+ while ((cldpid = fork()) < 0 && errno == EAGAIN && forksleep < 32) {
+ if (intrsig)
+ /* allow user to ^C out... */
+ break;
+ sleep(forksleep);
+ forksleep <<= 1;
+ }
+ /* ensure $RANDOM changes between parent and child */
+ rndset((unsigned long)cldpid);
+ /* fork failed? */
+ if (cldpid < 0) {
+ kill_job(j, SIGKILL);
+ remove_job(j, "fork failed");
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+ errorf("can't fork - try again");
+ }
+ p->pid = cldpid ? cldpid : (procpid = getpid());
+
+#ifndef MKSH_UNEMPLOYED
+ /* job control set up */
+ if (Flag(FMONITOR) && !(flags&XXCOM)) {
+ bool dotty = false;
+
+ if (j->pgrp == 0) {
+ /* First process */
+ j->pgrp = p->pid;
+ dotty = true;
+ }
+
+ /*
+ * set pgrp in both parent and child to deal with race
+ * condition
+ */
+ setpgid(p->pid, j->pgrp);
+ if (ttypgrp_ok && dotty && !(flags & XBGND))
+ tcsetpgrp(tty_fd, j->pgrp);
+ }
+#endif
+
+ /* used to close pipe input fd */
+ if (close_fd >= 0 && (((flags & XPCLOSE) && cldpid) ||
+ ((flags & XCCLOSE) && !cldpid)))
+ close(close_fd);
+ if (!cldpid) {
+ /* child */
+
+ /* Do this before restoring signal */
+ if (flags & XCOPROC)
+ coproc_cleanup(false);
+ cleanup_parents_env();
+#ifndef MKSH_UNEMPLOYED
+ /*
+ * If FMONITOR or FTALKING is set, these signals are ignored,
+ * if neither FMONITOR nor FTALKING are set, the signals have
+ * their inherited values.
+ */
+ if (Flag(FMONITOR) && !(flags & XXCOM)) {
+ for (forksleep = NELEM(tt_sigs); --forksleep >= 0; )
+ setsig(&sigtraps[tt_sigs[forksleep]], SIG_DFL,
+ SS_RESTORE_DFL|SS_FORCE);
+ }
+#endif
+#if HAVE_NICE
+ if (Flag(FBGNICE) && (flags & XBGND))
+ ksh_nice(4);
+#endif
+ if ((flags & XBGND)
+#ifndef MKSH_UNEMPLOYED
+ && !Flag(FMONITOR)
+#endif
+ ) {
+ setsig(&sigtraps[SIGINT], SIG_IGN,
+ SS_RESTORE_IGN|SS_FORCE);
+ setsig(&sigtraps[SIGQUIT], SIG_IGN,
+ SS_RESTORE_IGN|SS_FORCE);
+ if ((!(flags & (XPIPEI | XCOPROC))) &&
+ ((forksleep = open("/dev/null", 0)) > 0)) {
+ (void)ksh_dup2(forksleep, 0, true);
+ close(forksleep);
+ }
+ }
+ /* in case of $(jobs) command */
+ remove_job(j, "child");
+#ifndef MKSH_NOPROSPECTOFWORK
+ /* remove_job needs SIGCHLD blocked still */
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+ nzombie = 0;
+#ifndef MKSH_UNEMPLOYED
+ ttypgrp_ok = false;
+ Flag(FMONITOR) = 0;
+#endif
+ Flag(FTALKING) = 0;
+ cleartraps();
+ /* no return */
+ execute(t, (flags & XERROK) | XEXEC, NULL);
+#ifndef MKSH_SMALL
+ if (t->type == TPIPE)
+ unwind(LLEAVE);
+ internal_warningf("%s: %s", "exchild", "execute() returned");
+ fptreef(shl_out, 8, "%s: tried to execute {\n\t%T\n}\n",
+ "exchild", t);
+ shf_flush(shl_out);
+#endif
+ unwind(LLEAVE);
+ /* NOTREACHED */
+ }
+
+ /* shell (parent) stuff */
+ if (!(flags & XPIPEO)) {
+ /* last process in a job */
+ j_startjob(j);
+ if (flags & XCOPROC) {
+ j->coproc_id = coproc.id;
+ /* n jobs using co-process output */
+ coproc.njobs++;
+ /* j using co-process input */
+ coproc.job = (void *)j;
+ }
+ if (flags & XBGND) {
+ j_set_async(j);
+ if (Flag(FTALKING)) {
+ shf_fprintf(shl_out, "[%d]", j->job);
+ for (p = j->proc_list; p; p = p->next)
+ shf_fprintf(shl_out, " %d",
+ (int)p->pid);
+ shf_putchar('\n', shl_out);
+ shf_flush(shl_out);
+ }
+ } else
+ rv = j_waitj(j, jwflags, "jw:last proc");
+ }
+
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+
+ return (rv);
+}
+
+/* start the last job: only used for $(command) jobs */
+void
+startlast(void)
+{
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigset_t omask;
+
+ sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
+#endif
+
+ /* no need to report error - waitlast() will do it */
+ if (last_job) {
+ /* ensure it isn't removed by check_job() */
+ last_job->flags |= JF_WAITING;
+ j_startjob(last_job);
+ }
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+}
+
+/* wait for last job: only used for $(command) jobs */
+int
+waitlast(void)
+{
+ int rv;
+ Job *j;
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigset_t omask;
+
+ sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
+#endif
+
+ j = last_job;
+ if (!j || !(j->flags & JF_STARTED)) {
+ if (!j)
+ warningf(true, "%s: %s", "waitlast", "no last job");
+ else
+ internal_warningf("%s: %s", "waitlast", "not started");
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+ /* not so arbitrary, non-zero value */
+ return (125);
+ }
+
+ rv = j_waitj(j, JW_NONE, "waitlast");
+
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+
+ return (rv);
+}
+
+/* wait for child, interruptable. */
+int
+waitfor(const char *cp, int *sigp)
+{
+ int rv, ecode, flags = JW_INTERRUPT|JW_ASYNCNOTIFY;
+ Job *j;
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigset_t omask;
+
+ sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
+#endif
+
+ *sigp = 0;
+
+ if (cp == NULL) {
+ /*
+ * wait for an unspecified job - always returns 0, so
+ * don't have to worry about exited/signaled jobs
+ */
+ for (j = job_list; j; j = j->next)
+ /* AT&T ksh will wait for stopped jobs - we don't */
+ if (j->ppid == procpid && j->state == PRUNNING)
+ break;
+ if (!j) {
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+ return (-1);
+ }
+ } else if ((j = j_lookup(cp, &ecode))) {
+ /* don't report normal job completion */
+ flags &= ~JW_ASYNCNOTIFY;
+ if (j->ppid != procpid) {
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+ return (-1);
+ }
+ } else {
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+ if (ecode != JL_NOSUCH)
+ bi_errorf("%s: %s", cp, lookup_msgs[ecode]);
+ return (-1);
+ }
+
+ /* AT&T ksh will wait for stopped jobs - we don't */
+ rv = j_waitj(j, flags, "jw:waitfor");
+
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+
+ if (rv < 0)
+ /* we were interrupted */
+ *sigp = 128 + -rv;
+
+ return (rv);
+}
+
+/* kill (built-in) a job */
+int
+j_kill(const char *cp, int sig)
+{
+ Job *j;
+ int rv = 0, ecode;
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigset_t omask;
+
+ sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
+#endif
+
+ if ((j = j_lookup(cp, &ecode)) == NULL) {
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+ bi_errorf("%s: %s", cp, lookup_msgs[ecode]);
+ return (1);
+ }
+
+ if (j->pgrp == 0) {
+ /* started when !Flag(FMONITOR) */
+ if (kill_job(j, sig) < 0) {
+ bi_errorf("%s: %s", cp, cstrerror(errno));
+ rv = 1;
+ }
+ } else {
+#ifndef MKSH_UNEMPLOYED
+ if (j->state == PSTOPPED && (sig == SIGTERM || sig == SIGHUP))
+ mksh_killpg(j->pgrp, SIGCONT);
+#endif
+ if (mksh_killpg(j->pgrp, sig) < 0) {
+ bi_errorf("%s: %s", cp, cstrerror(errno));
+ rv = 1;
+ }
+ }
+
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+
+ return (rv);
+}
+
+#ifndef MKSH_UNEMPLOYED
+/* fg and bg built-ins: called only if Flag(FMONITOR) set */
+int
+j_resume(const char *cp, int bg)
+{
+ Job *j;
+ Proc *p;
+ int ecode, rv = 0;
+ bool running;
+ sigset_t omask;
+
+ sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
+
+ if ((j = j_lookup(cp, &ecode)) == NULL) {
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+ bi_errorf("%s: %s", cp, lookup_msgs[ecode]);
+ return (1);
+ }
+
+ if (j->pgrp == 0) {
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+ bi_errorf("job not job-controlled");
+ return (1);
+ }
+
+ if (bg)
+ shprintf("[%d] ", j->job);
+
+ running = false;
+ for (p = j->proc_list; p != NULL; p = p->next) {
+ if (p->state == PSTOPPED) {
+ p->state = PRUNNING;
+ p->status = 0;
+ running = true;
+ }
+ shf_puts(p->command, shl_stdout);
+ if (p->next)
+ shf_puts("| ", shl_stdout);
+ }
+ shf_putc('\n', shl_stdout);
+ shf_flush(shl_stdout);
+ if (running)
+ j->state = PRUNNING;
+
+ put_job(j, PJ_PAST_STOPPED);
+ if (bg)
+ j_set_async(j);
+ else {
+ /* attach tty to job */
+ if (j->state == PRUNNING) {
+ if (ttypgrp_ok && (j->flags & JF_SAVEDTTY))
+ mksh_tcset(tty_fd, &j->ttystat);
+ /* See comment in j_waitj regarding saved_ttypgrp. */
+ if (ttypgrp_ok &&
+ tcsetpgrp(tty_fd, (j->flags & JF_SAVEDTTYPGRP) ?
+ j->saved_ttypgrp : j->pgrp) < 0) {
+ rv = errno;
+ if (j->flags & JF_SAVEDTTY)
+ mksh_tcset(tty_fd, &tty_state);
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+ bi_errorf("%s %s(%d, %ld) %s: %s",
+ "1st", "tcsetpgrp", tty_fd,
+ (long)((j->flags & JF_SAVEDTTYPGRP) ?
+ j->saved_ttypgrp : j->pgrp), "failed",
+ cstrerror(rv));
+ return (1);
+ }
+ }
+ j->flags |= JF_FG;
+ j->flags &= ~JF_KNOWN;
+ if (j == async_job)
+ async_job = NULL;
+ }
+
+ if (j->state == PRUNNING && mksh_killpg(j->pgrp, SIGCONT) < 0) {
+ int eno = errno;
+
+ if (!bg) {
+ j->flags &= ~JF_FG;
+ if (ttypgrp_ok && (j->flags & JF_SAVEDTTY))
+ mksh_tcset(tty_fd, &tty_state);
+ if (ttypgrp_ok && tcsetpgrp(tty_fd, kshpgrp) < 0)
+ warningf(true, "%s %s(%d, %ld) %s: %s",
+ "fg: 2nd", "tcsetpgrp", tty_fd,
+ (long)kshpgrp, "failed", cstrerror(errno));
+ }
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+ bi_errorf("%s %s %s", "can't continue job",
+ cp, cstrerror(eno));
+ return (1);
+ }
+ if (!bg) {
+ if (ttypgrp_ok) {
+ j->flags &= ~(JF_SAVEDTTY | JF_SAVEDTTYPGRP);
+ }
+ rv = j_waitj(j, JW_NONE, "jw:resume");
+ }
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+ return (rv);
+}
+#endif
+
+/* are there any running or stopped jobs ? */
+int
+j_stopped_running(void)
+{
+ Job *j;
+ int which = 0;
+
+ for (j = job_list; j != NULL; j = j->next) {
+#ifndef MKSH_UNEMPLOYED
+ if (j->ppid == procpid && j->state == PSTOPPED)
+ which |= 1;
+#endif
+ if (Flag(FLOGIN) && !Flag(FNOHUP) && procpid == kshpid &&
+ j->ppid == procpid && j->state == PRUNNING)
+ which |= 2;
+ }
+ if (which) {
+ shellf("You have %s%s%s jobs\n",
+ which & 1 ? "stopped" : "",
+ which == 3 ? " and " : "",
+ which & 2 ? "running" : "");
+ return (1);
+ }
+
+ return (0);
+}
+
+
+/* list jobs for jobs built-in */
+int
+j_jobs(const char *cp, int slp,
+ /* 0: short, 1: long, 2: pgrp */
+ int nflag)
+{
+ Job *j, *tmp;
+ int how, zflag = 0;
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigset_t omask;
+
+ sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
+#endif
+
+ if (nflag < 0) {
+ /* kludge: print zombies */
+ nflag = 0;
+ zflag = 1;
+ }
+ if (cp) {
+ int ecode;
+
+ if ((j = j_lookup(cp, &ecode)) == NULL) {
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+ bi_errorf("%s: %s", cp, lookup_msgs[ecode]);
+ return (1);
+ }
+ } else
+ j = job_list;
+ how = slp == 0 ? JP_MEDIUM : (slp == 1 ? JP_LONG : JP_PGRP);
+ for (; j; j = j->next) {
+ if ((!(j->flags & JF_ZOMBIE) || zflag) &&
+ (!nflag || (j->flags & JF_CHANGED))) {
+ j_print(j, how, shl_stdout);
+ if (j->state == PEXITED || j->state == PSIGNALLED)
+ j->flags |= JF_REMOVE;
+ }
+ if (cp)
+ break;
+ }
+ /* Remove jobs after printing so there won't be multiple + or - jobs */
+ for (j = job_list; j; j = tmp) {
+ tmp = j->next;
+ if (j->flags & JF_REMOVE)
+ remove_job(j, "jobs");
+ }
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+ return (0);
+}
+
+/* list jobs for top-level notification */
+void
+j_notify(void)
+{
+ Job *j, *tmp;
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigset_t omask;
+
+ sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
+#endif
+ for (j = job_list; j; j = j->next) {
+#ifndef MKSH_UNEMPLOYED
+ if (Flag(FMONITOR) && (j->flags & JF_CHANGED))
+ j_print(j, JP_MEDIUM, shl_out);
+#endif
+ /*
+ * Remove job after doing reports so there aren't
+ * multiple +/- jobs.
+ */
+ if (j->state == PEXITED || j->state == PSIGNALLED)
+ j->flags |= JF_REMOVE;
+ }
+ for (j = job_list; j; j = tmp) {
+ tmp = j->next;
+ if (j->flags & JF_REMOVE)
+ remove_job(j, "notify");
+ }
+ shf_flush(shl_out);
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+}
+
+/* Return pid of last process in last asynchronous job */
+pid_t
+j_async(void)
+{
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigset_t omask;
+
+ sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
+#endif
+
+ if (async_job)
+ async_job->flags |= JF_KNOWN;
+
+#ifndef MKSH_NOPROSPECTOFWORK
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+
+ return (async_pid);
+}
+
+/*
+ * Make j the last async process
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+static void
+j_set_async(Job *j)
+{
+ Job *jl, *oldest;
+
+ if (async_job && (async_job->flags & (JF_KNOWN|JF_ZOMBIE)) == JF_ZOMBIE)
+ remove_job(async_job, "async");
+ if (!(j->flags & JF_STARTED)) {
+ internal_warningf("%s: %s", "j_async", "job not started");
+ return;
+ }
+ async_job = j;
+ async_pid = j->last_proc->pid;
+ while (nzombie > CHILD_MAX) {
+ oldest = NULL;
+ for (jl = job_list; jl; jl = jl->next)
+ if (jl != async_job && (jl->flags & JF_ZOMBIE) &&
+ (!oldest || jl->age < oldest->age))
+ oldest = jl;
+ if (!oldest) {
+ /* XXX debugging */
+ if (!(async_job->flags & JF_ZOMBIE) || nzombie != 1) {
+ internal_warningf("%s: bad nzombie (%d)",
+ "j_async", nzombie);
+ nzombie = 0;
+ }
+ break;
+ }
+ remove_job(oldest, "zombie");
+ }
+}
+
+/*
+ * Start a job: set STARTED, check for held signals and set j->last_proc
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+static void
+j_startjob(Job *j)
+{
+ Proc *p;
+
+ j->flags |= JF_STARTED;
+ for (p = j->proc_list; p->next; p = p->next)
+ ;
+ j->last_proc = p;
+
+#ifndef MKSH_NOPROSPECTOFWORK
+ if (held_sigchld) {
+ held_sigchld = 0;
+ /* Don't call j_sigchld() as it may remove job... */
+ kill(procpid, SIGCHLD);
+ }
+#endif
+}
+
+/*
+ * wait for job to complete or change state
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+static int
+j_waitj(Job *j,
+ /* see JW_* */
+ int flags,
+ const char *where)
+{
+ int rv;
+#ifdef MKSH_NO_SIGSUSPEND
+ sigset_t omask;
+#endif
+
+ /*
+ * No auto-notify on the job we are waiting on.
+ */
+ j->flags |= JF_WAITING;
+ if (flags & JW_ASYNCNOTIFY)
+ j->flags |= JF_W_ASYNCNOTIFY;
+
+#ifndef MKSH_UNEMPLOYED
+ if (!Flag(FMONITOR))
+#endif
+ flags |= JW_STOPPEDWAIT;
+
+ while (j->state == PRUNNING ||
+ ((flags & JW_STOPPEDWAIT) && j->state == PSTOPPED)) {
+#ifndef MKSH_NOPROSPECTOFWORK
+#ifdef MKSH_NO_SIGSUSPEND
+ sigprocmask(SIG_SETMASK, &sm_default, &omask);
+ pause();
+ /* note that handlers may run here so they need to know */
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#else
+ sigsuspend(&sm_default);
+#endif
+#else
+ j_sigchld(SIGCHLD);
+#endif
+ if (fatal_trap) {
+ int oldf = j->flags & (JF_WAITING|JF_W_ASYNCNOTIFY);
+ j->flags &= ~(JF_WAITING|JF_W_ASYNCNOTIFY);
+ runtraps(TF_FATAL);
+ /* not reached... */
+ j->flags |= oldf;
+ }
+ if ((flags & JW_INTERRUPT) && (rv = trap_pending())) {
+ j->flags &= ~(JF_WAITING|JF_W_ASYNCNOTIFY);
+ return (-rv);
+ }
+ }
+ j->flags &= ~(JF_WAITING|JF_W_ASYNCNOTIFY);
+
+ if (j->flags & JF_FG) {
+ j->flags &= ~JF_FG;
+#ifndef MKSH_UNEMPLOYED
+ if (Flag(FMONITOR) && ttypgrp_ok && j->pgrp) {
+ /*
+ * Save the tty's current pgrp so it can be restored
+ * when the job is foregrounded. This is to
+ * deal with things like the GNU su which does
+ * a fork/exec instead of an exec (the fork means
+ * the execed shell gets a different pid from its
+ * pgrp, so naturally it sets its pgrp and gets hosed
+ * when it gets foregrounded by the parent shell which
+ * has restored the tty's pgrp to that of the su
+ * process).
+ */
+ if (j->state == PSTOPPED &&
+ (j->saved_ttypgrp = tcgetpgrp(tty_fd)) >= 0)
+ j->flags |= JF_SAVEDTTYPGRP;
+ if (tcsetpgrp(tty_fd, kshpgrp) < 0)
+ warningf(true, "%s %s(%d, %ld) %s: %s",
+ "j_waitj:", "tcsetpgrp", tty_fd,
+ (long)kshpgrp, "failed", cstrerror(errno));
+ if (j->state == PSTOPPED) {
+ j->flags |= JF_SAVEDTTY;
+ mksh_tcget(tty_fd, &j->ttystat);
+ }
+ }
+#endif
+ if (tty_hasstate) {
+ /*
+ * Only restore tty settings if job was originally
+ * started in the foreground. Problems can be
+ * caused by things like 'more foobar &' which will
+ * typically get and save the shell's vi/emacs tty
+ * settings before setting up the tty for itself;
+ * when more exits, it restores the 'original'
+ * settings, and things go down hill from there...
+ */
+ if (j->state == PEXITED && j->status == 0 &&
+ (j->flags & JF_USETTYMODE)) {
+ mksh_tcget(tty_fd, &tty_state);
+ } else {
+ mksh_tcset(tty_fd, &tty_state);
+ /*-
+ * Don't use tty mode if job is stopped and
+ * later restarted and exits. Consider
+ * the sequence:
+ * vi foo (stopped)
+ * ...
+ * stty something
+ * ...
+ * fg (vi; ZZ)
+ * mode should be that of the stty, not what
+ * was before the vi started.
+ */
+ if (j->state == PSTOPPED)
+ j->flags &= ~JF_USETTYMODE;
+ }
+ }
+#ifndef MKSH_UNEMPLOYED
+ /*
+ * If it looks like user hit ^C to kill a job, pretend we got
+ * one too to break out of for loops, etc. (AT&T ksh does this
+ * even when not monitoring, but this doesn't make sense since
+ * a tty generated ^C goes to the whole process group)
+ */
+ {
+ int status;
+
+ status = j->last_proc->status;
+ if (Flag(FMONITOR) && j->state == PSIGNALLED &&
+ WIFSIGNALED(status) &&
+ (sigtraps[WTERMSIG(status)].flags & TF_TTY_INTR))
+ trapsig(WTERMSIG(status));
+ }
+#endif
+ }
+
+ j_usrtime = j->usrtime;
+ j_systime = j->systime;
+ rv = j->status;
+
+ if ((flags & JW_PIPEST) && (j->proc_list != NULL)) {
+ uint32_t num = 0;
+ Proc *p = j->proc_list;
+ struct tbl *vp;
+
+ unset(vp_pipest, 1);
+ vp = vp_pipest;
+ vp->flag = DEFINED | ISSET | INTEGER | RDONLY | ARRAY | INT_U;
+ goto got_array;
+
+ while (p != NULL) {
+ {
+ struct tbl *vq;
+
+ /* strlen(vp_pipest->name) == 10 */
+ vq = alloc(offsetof(struct tbl, name[0]) + 11,
+ vp_pipest->areap);
+ memset(vq, 0, offsetof(struct tbl, name[0]));
+ memcpy(vq->name, vp_pipest->name, 11);
+ vp->u.array = vq;
+ vp = vq;
+ }
+ vp->areap = vp_pipest->areap;
+ vp->ua.index = ++num;
+ vp->flag = DEFINED | ISSET | INTEGER | RDONLY |
+ ARRAY | INT_U | AINDEX;
+ got_array:
+ vp->val.i = proc_errorlevel(p);
+ if (Flag(FPIPEFAIL) && vp->val.i)
+ rv = vp->val.i;
+ p = p->next;
+ }
+ } else if (Flag(FPIPEFAIL) && (j->proc_list != NULL)) {
+ Proc *p = j->proc_list;
+ int i;
+
+ while (p != NULL) {
+ if ((i = proc_errorlevel(p)))
+ rv = i;
+ p = p->next;
+ }
+ }
+
+ if (!(flags & JW_ASYNCNOTIFY)
+#ifndef MKSH_UNEMPLOYED
+ && (!Flag(FMONITOR) || j->state != PSTOPPED)
+#endif
+ ) {
+ j_print(j, JP_SHORT, shl_out);
+ shf_flush(shl_out);
+ }
+ if (j->state != PSTOPPED
+#ifndef MKSH_UNEMPLOYED
+ && (!Flag(FMONITOR) || !(flags & JW_ASYNCNOTIFY))
+#endif
+ )
+ remove_job(j, where);
+
+ return (rv);
+}
+
+/*
+ * SIGCHLD handler to reap children and update job states
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+/* ARGSUSED */
+static void
+j_sigchld(int sig MKSH_A_UNUSED)
+{
+ int saved_errno = errno;
+ Job *j;
+ Proc *p = NULL;
+ pid_t pid;
+ int status;
+ struct rusage ru0, ru1;
+#ifdef MKSH_NO_SIGSUSPEND
+ sigset_t omask;
+
+ /* this handler can run while SIGCHLD is not blocked, so block it now */
+ sigprocmask(SIG_BLOCK, &sm_sigchld, &omask);
+#endif
+
+#ifndef MKSH_NOPROSPECTOFWORK
+ /*
+ * Don't wait for any processes if a job is partially started.
+ * This is so we don't do away with the process group leader
+ * before all the processes in a pipe line are started (so the
+ * setpgid() won't fail)
+ */
+ for (j = job_list; j; j = j->next)
+ if (j->ppid == procpid && !(j->flags & JF_STARTED)) {
+ held_sigchld = 1;
+ goto j_sigchld_out;
+ }
+#endif
+
+ getrusage(RUSAGE_CHILDREN, &ru0);
+ do {
+#ifndef MKSH_NOPROSPECTOFWORK
+ pid = waitpid(-1, &status, (WNOHANG |
+#ifdef WCONTINUED
+ WCONTINUED |
+#endif
+ WUNTRACED));
+#else
+ pid = wait(&status);
+#endif
+
+ /*
+ * return if this would block (0) or no children
+ * or interrupted (-1)
+ */
+ if (pid <= 0)
+ goto j_sigchld_out;
+
+ getrusage(RUSAGE_CHILDREN, &ru1);
+
+ /* find job and process structures for this pid */
+ for (j = job_list; j != NULL; j = j->next)
+ for (p = j->proc_list; p != NULL; p = p->next)
+ if (p->pid == pid)
+ goto found;
+ found:
+ if (j == NULL) {
+ /* Can occur if process has kids, then execs shell
+ warningf(true, "bad process waited for (pid = %d)",
+ pid);
+ */
+ ru0 = ru1;
+ continue;
+ }
+
+ timeradd(&j->usrtime, &ru1.ru_utime, &j->usrtime);
+ timersub(&j->usrtime, &ru0.ru_utime, &j->usrtime);
+ timeradd(&j->systime, &ru1.ru_stime, &j->systime);
+ timersub(&j->systime, &ru0.ru_stime, &j->systime);
+ ru0 = ru1;
+ p->status = status;
+#ifndef MKSH_UNEMPLOYED
+ if (WIFSTOPPED(status))
+ p->state = PSTOPPED;
+ else
+#ifdef WIFCONTINUED
+ if (WIFCONTINUED(status)) {
+ p->state = j->state = PRUNNING;
+ /* skip check_job(), no-op in this case */
+ continue;
+ } else
+#endif
+#endif
+ if (WIFSIGNALED(status))
+ p->state = PSIGNALLED;
+ else
+ p->state = PEXITED;
+
+ /* check to see if entire job is done */
+ check_job(j);
+ }
+#ifndef MKSH_NOPROSPECTOFWORK
+ while (/* CONSTCOND */ 1);
+#else
+ while (/* CONSTCOND */ 0);
+#endif
+
+ j_sigchld_out:
+#ifdef MKSH_NO_SIGSUSPEND
+ sigprocmask(SIG_SETMASK, &omask, NULL);
+#endif
+ errno = saved_errno;
+}
+
+/*
+ * Called only when a process in j has exited/stopped (ie, called only
+ * from j_sigchld()). If no processes are running, the job status
+ * and state are updated, asynchronous job notification is done and,
+ * if unneeded, the job is removed.
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+static void
+check_job(Job *j)
+{
+ int jstate;
+ Proc *p;
+
+ /* XXX debugging (nasty - interrupt routine using shl_out) */
+ if (!(j->flags & JF_STARTED)) {
+ internal_warningf("check_job: job started (flags 0x%x)",
+ j->flags);
+ return;
+ }
+
+ jstate = PRUNNING;
+ for (p=j->proc_list; p != NULL; p = p->next) {
+ if (p->state == PRUNNING)
+ /* some processes still running */
+ return;
+ if (p->state > jstate)
+ jstate = p->state;
+ }
+ j->state = jstate;
+ j->status = proc_errorlevel(j->last_proc);
+
+ /*
+ * Note when co-process dies: can't be done in j_wait() nor
+ * remove_job() since neither may be called for non-interactive
+ * shells.
+ */
+ if (j->state == PEXITED || j->state == PSIGNALLED) {
+ /*
+ * No need to keep co-process input any more
+ * (at least, this is what ksh93d thinks)
+ */
+ if (coproc.job == j) {
+ coproc.job = NULL;
+ /*
+ * XXX would be nice to get the closes out of here
+ * so they aren't done in the signal handler.
+ * Would mean a check in coproc_getfd() to
+ * do "if job == 0 && write >= 0, close write".
+ */
+ coproc_write_close(coproc.write);
+ }
+ /* Do we need to keep the output? */
+ if (j->coproc_id && j->coproc_id == coproc.id &&
+ --coproc.njobs == 0)
+ coproc_readw_close(coproc.read);
+ }
+
+ j->flags |= JF_CHANGED;
+#ifndef MKSH_UNEMPLOYED
+ if (Flag(FMONITOR) && !(j->flags & JF_XXCOM)) {
+ /*
+ * Only put stopped jobs at the front to avoid confusing
+ * the user (don't want finished jobs effecting %+ or %-)
+ */
+ if (j->state == PSTOPPED)
+ put_job(j, PJ_ON_FRONT);
+ if (Flag(FNOTIFY) &&
+ (j->flags & (JF_WAITING|JF_W_ASYNCNOTIFY)) != JF_WAITING) {
+ /* Look for the real file descriptor 2 */
+ {
+ struct env *ep;
+ int fd = 2;
+
+ for (ep = e; ep; ep = ep->oenv)
+ if (ep->savefd && ep->savefd[2])
+ fd = ep->savefd[2];
+ shf_reopen(fd, SHF_WR, shl_j);
+ }
+ /*
+ * Can't call j_notify() as it removes jobs. The job
+ * must stay in the job list as j_waitj() may be
+ * running with this job.
+ */
+ j_print(j, JP_MEDIUM, shl_j);
+ shf_flush(shl_j);
+ if (!(j->flags & JF_WAITING) && j->state != PSTOPPED)
+ remove_job(j, "notify");
+ }
+ }
+#endif
+ if (
+#ifndef MKSH_UNEMPLOYED
+ !Flag(FMONITOR) &&
+#endif
+ !(j->flags & (JF_WAITING|JF_FG)) &&
+ j->state != PSTOPPED) {
+ if (j == async_job || (j->flags & JF_KNOWN)) {
+ j->flags |= JF_ZOMBIE;
+ j->job = -1;
+ nzombie++;
+ } else
+ remove_job(j, "checkjob");
+ }
+}
+
+/*
+ * Print job status in either short, medium or long format.
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+static void
+j_print(Job *j, int how, struct shf *shf)
+{
+ Proc *p;
+ int state;
+ int status;
+ int coredumped;
+ char jobchar = ' ';
+ char buf[64];
+ const char *filler;
+ int output = 0;
+
+ if (how == JP_PGRP) {
+ /*
+ * POSIX doesn't say what to do it there is no process
+ * group leader (ie, !FMONITOR). We arbitrarily return
+ * last pid (which is what $! returns).
+ */
+ shf_fprintf(shf, "%d\n", (int)(j->pgrp ? j->pgrp :
+ (j->last_proc ? j->last_proc->pid : 0)));
+ return;
+ }
+ j->flags &= ~JF_CHANGED;
+ filler = j->job > 10 ? "\n " : "\n ";
+ if (j == job_list)
+ jobchar = '+';
+ else if (j == job_list->next)
+ jobchar = '-';
+
+ for (p = j->proc_list; p != NULL;) {
+ coredumped = 0;
+ switch (p->state) {
+ case PRUNNING:
+ memcpy(buf, "Running", 8);
+ break;
+ case PSTOPPED:
+ strlcpy(buf, sigtraps[WSTOPSIG(p->status)].mess,
+ sizeof(buf));
+ break;
+ case PEXITED:
+ if (how == JP_SHORT)
+ buf[0] = '\0';
+ else if (WEXITSTATUS(p->status) == 0)
+ memcpy(buf, "Done", 5);
+ else
+ shf_snprintf(buf, sizeof(buf), "Done (%d)",
+ WEXITSTATUS(p->status));
+ break;
+ case PSIGNALLED:
+#ifdef WCOREDUMP
+ if (WCOREDUMP(p->status))
+ coredumped = 1;
+#endif
+ /*
+ * kludge for not reporting 'normal termination
+ * signals' (i.e. SIGINT, SIGPIPE)
+ */
+ if (how == JP_SHORT && !coredumped &&
+ (WTERMSIG(p->status) == SIGINT ||
+ WTERMSIG(p->status) == SIGPIPE)) {
+ buf[0] = '\0';
+ } else
+ strlcpy(buf, sigtraps[WTERMSIG(p->status)].mess,
+ sizeof(buf));
+ break;
+ default:
+ buf[0] = '\0';
+ }
+
+ if (how != JP_SHORT) {
+ if (p == j->proc_list)
+ shf_fprintf(shf, "[%d] %c ", j->job, jobchar);
+ else
+ shf_puts(filler, shf);
+ }
+
+ if (how == JP_LONG)
+ shf_fprintf(shf, "%5d ", (int)p->pid);
+
+ if (how == JP_SHORT) {
+ if (buf[0]) {
+ output = 1;
+ shf_fprintf(shf, "%s%s ",
+ buf, coredumped ? " (core dumped)" : null);
+ }
+ } else {
+ output = 1;
+ shf_fprintf(shf, "%-20s %s%s%s", buf, p->command,
+ p->next ? "|" : null,
+ coredumped ? " (core dumped)" : null);
+ }
+
+ state = p->state;
+ status = p->status;
+ p = p->next;
+ while (p && p->state == state && p->status == status) {
+ if (how == JP_LONG)
+ shf_fprintf(shf, "%s%5d %-20s %s%s", filler,
+ (int)p->pid, " ", p->command,
+ p->next ? "|" : null);
+ else if (how == JP_MEDIUM)
+ shf_fprintf(shf, " %s%s", p->command,
+ p->next ? "|" : null);
+ p = p->next;
+ }
+ }
+ if (output)
+ shf_putc('\n', shf);
+}
+
+/*
+ * Convert % sequence to job
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+static Job *
+j_lookup(const char *cp, int *ecodep)
+{
+ Job *j, *last_match;
+ Proc *p;
+ size_t len;
+ int job = 0;
+
+ if (ksh_isdigit(*cp)) {
+ getn(cp, &job);
+ /* Look for last_proc->pid (what $! returns) first... */
+ for (j = job_list; j != NULL; j = j->next)
+ if (j->last_proc && j->last_proc->pid == job)
+ return (j);
+ /*
+ * ...then look for process group (this is non-POSIX,
+ * but should not break anything
+ */
+ for (j = job_list; j != NULL; j = j->next)
+ if (j->pgrp && j->pgrp == job)
+ return (j);
+ if (ecodep)
+ *ecodep = JL_NOSUCH;
+ return (NULL);
+ }
+ if (*cp != '%') {
+ if (ecodep)
+ *ecodep = JL_INVALID;
+ return (NULL);
+ }
+ switch (*++cp) {
+ case '\0': /* non-standard */
+ case '+':
+ case '%':
+ if (job_list != NULL)
+ return (job_list);
+ break;
+
+ case '-':
+ if (job_list != NULL && job_list->next)
+ return (job_list->next);
+ break;
+
+ case '0': case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ getn(cp, &job);
+ for (j = job_list; j != NULL; j = j->next)
+ if (j->job == job)
+ return (j);
+ break;
+
+ /* %?string */
+ case '?':
+ last_match = NULL;
+ for (j = job_list; j != NULL; j = j->next)
+ for (p = j->proc_list; p != NULL; p = p->next)
+ if (strstr(p->command, cp+1) != NULL) {
+ if (last_match) {
+ if (ecodep)
+ *ecodep = JL_AMBIG;
+ return (NULL);
+ }
+ last_match = j;
+ }
+ if (last_match)
+ return (last_match);
+ break;
+
+ /* %string */
+ default:
+ len = strlen(cp);
+ last_match = NULL;
+ for (j = job_list; j != NULL; j = j->next)
+ if (strncmp(cp, j->proc_list->command, len) == 0) {
+ if (last_match) {
+ if (ecodep)
+ *ecodep = JL_AMBIG;
+ return (NULL);
+ }
+ last_match = j;
+ }
+ if (last_match)
+ return (last_match);
+ break;
+ }
+ if (ecodep)
+ *ecodep = JL_NOSUCH;
+ return (NULL);
+}
+
+static Job *free_jobs;
+static Proc *free_procs;
+
+/*
+ * allocate a new job and fill in the job number.
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+static Job *
+new_job(void)
+{
+ int i;
+ Job *newj, *j;
+
+ if (free_jobs != NULL) {
+ newj = free_jobs;
+ free_jobs = free_jobs->next;
+ } else
+ newj = alloc(sizeof(Job), APERM);
+
+ /* brute force method */
+ for (i = 1; ; i++) {
+ for (j = job_list; j && j->job != i; j = j->next)
+ ;
+ if (j == NULL)
+ break;
+ }
+ newj->job = i;
+
+ return (newj);
+}
+
+/*
+ * Allocate new process struct
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+static Proc *
+new_proc(void)
+{
+ Proc *p;
+
+ if (free_procs != NULL) {
+ p = free_procs;
+ free_procs = free_procs->next;
+ } else
+ p = alloc(sizeof(Proc), APERM);
+
+ return (p);
+}
+
+/*
+ * Take job out of job_list and put old structures into free list.
+ * Keeps nzombies, last_job and async_job up to date.
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+static void
+remove_job(Job *j, const char *where)
+{
+ Proc *p, *tmp;
+ Job **prev, *curr;
+
+ mkssert(j != NULL);
+ prev = &job_list;
+ curr = job_list;
+ while (curr && curr != j) {
+ prev = &curr->next;
+ curr = *prev;
+ }
+ if (curr != j) {
+ internal_warningf("remove_job: job %s (%s)", "not found", where);
+ return;
+ }
+ *prev = curr->next;
+
+ /* free up proc structures */
+ for (p = j->proc_list; p != NULL; ) {
+ tmp = p;
+ p = p->next;
+ tmp->next = free_procs;
+ free_procs = tmp;
+ }
+
+ if ((j->flags & JF_ZOMBIE) && j->ppid == procpid)
+ --nzombie;
+ j->next = free_jobs;
+ free_jobs = j;
+
+ if (j == last_job)
+ last_job = NULL;
+ if (j == async_job)
+ async_job = NULL;
+}
+
+/*
+ * put j in a particular location (taking it out job_list if it is there
+ * already)
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+static void
+put_job(Job *j, int where)
+{
+ Job **prev, *curr;
+
+ mkssert(j != NULL);
+ /* Remove job from list (if there) */
+ prev = &job_list;
+ curr = job_list;
+ while (curr && curr != j) {
+ prev = &curr->next;
+ curr = *prev;
+ }
+ if (curr == j)
+ *prev = curr->next;
+
+ switch (where) {
+ case PJ_ON_FRONT:
+ j->next = job_list;
+ job_list = j;
+ break;
+
+ case PJ_PAST_STOPPED:
+ prev = &job_list;
+ curr = job_list;
+ for (; curr && curr->state == PSTOPPED; prev = &curr->next,
+ curr = *prev)
+ ;
+ j->next = curr;
+ *prev = j;
+ break;
+ }
+}
+
+/*
+ * nuke a job (called when unable to start full job).
+ *
+ * If jobs are compiled in then this routine expects sigchld to be blocked.
+ */
+static int
+kill_job(Job *j, int sig)
+{
+ Proc *p;
+ int rval = 0;
+
+ for (p = j->proc_list; p != NULL; p = p->next)
+ if (p->pid != 0)
+ if (kill(p->pid, sig) < 0)
+ rval = -1;
+ return (rval);
+}
+
+static void
+tty_init_talking(void)
+{
+ switch (tty_init_fd()) {
+ case 0:
+ break;
+ case 1:
+#ifndef MKSH_DISABLE_TTY_WARNING
+ warningf(false, "%s: %s %s: %s",
+ "No controlling tty", "open", "/dev/tty",
+ cstrerror(errno));
+#endif
+ break;
+ case 2:
+#ifndef MKSH_DISABLE_TTY_WARNING
+ warningf(false, "%s: %s", "can't find tty fd", cstrerror(errno));
+#endif
+ break;
+ case 3:
+ warningf(false, "%s: %s %s: %s", "j_ttyinit",
+ "dup of tty fd", "failed", cstrerror(errno));
+ break;
+ case 4:
+ warningf(false, "%s: %s: %s", "j_ttyinit",
+ "can't set close-on-exec flag", cstrerror(errno));
+ break;
+ }
+}
+
+static void
+tty_init_state(void)
+{
+ if (tty_fd >= 0) {
+ mksh_tcget(tty_fd, &tty_state);
+ tty_hasstate = true;
+ }
+}
Deleted: vendor/MirOS/mksh/R50/lex.c
===================================================================
--- vendor/MirOS/mksh/dist/lex.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/lex.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1803 +0,0 @@
-/* $OpenBSD: lex.c,v 1.47 2013/03/03 19:11:34 guenther Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- * 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-
-__RCSID("$MirOS: src/bin/mksh/lex.c,v 1.188 2013/08/10 13:44:31 tg Exp $");
-
-/*
- * states while lexing word
- */
-#define SBASE 0 /* outside any lexical constructs */
-#define SWORD 1 /* implicit quoting for substitute() */
-#define SLETPAREN 2 /* inside (( )), implicit quoting */
-#define SSQUOTE 3 /* inside '' */
-#define SDQUOTE 4 /* inside "" */
-#define SEQUOTE 5 /* inside $'' */
-#define SBRACE 6 /* inside ${} */
-#define SQBRACE 7 /* inside "${}" */
-#define SBQUOTE 8 /* inside `` */
-#define SASPAREN 9 /* inside $(( )) */
-#define SHEREDELIM 10 /* parsing <<,<<-,<<< delimiter */
-#define SHEREDQUOTE 11 /* parsing " in <<,<<-,<<< delimiter */
-#define SPATTERN 12 /* parsing *(...|...) pattern (*+?@!) */
-#define SADELIM 13 /* like SBASE, looking for delimiter */
-#define STBRACEKORN 14 /* parsing ${...[#%]...} !FSH */
-#define STBRACEBOURNE 15 /* parsing ${...[#%]...} FSH */
-#define SINVALID 255 /* invalid state */
-
-struct sretrace_info {
- struct sretrace_info *next;
- XString xs;
- char *xp;
-};
-
-/*
- * Structure to keep track of the lexing state and the various pieces of info
- * needed for each particular state.
- */
-typedef struct lex_state {
- union {
- /* point to the next state block */
- struct lex_state *base;
- /* marks start of state output in output string */
- int start;
- /* SBQUOTE: true if in double quotes: "`...`" */
- /* SEQUOTE: got NUL, ignore rest of string */
- bool abool;
- /* SADELIM information */
- struct {
- /* character to search for */
- unsigned char delimiter;
- /* max. number of delimiters */
- unsigned char num;
- } adelim;
- } u;
- /* count open parentheses */
- short nparen;
- /* type of this state */
- uint8_t type;
-} Lex_state;
-#define ls_base u.base
-#define ls_start u.start
-#define ls_bool u.abool
-#define ls_adelim u.adelim
-
-typedef struct {
- Lex_state *base;
- Lex_state *end;
-} State_info;
-
-static void readhere(struct ioword *);
-static void ungetsc(int);
-static void ungetsc_i(int);
-static int getsc_uu(void);
-static void getsc_line(Source *);
-static int getsc_bn(void);
-static int s_get(void);
-static void s_put(int);
-static char *get_brace_var(XString *, char *);
-static bool arraysub(char **);
-static void gethere(bool);
-static Lex_state *push_state_i(State_info *, Lex_state *);
-static Lex_state *pop_state_i(State_info *, Lex_state *);
-
-static int backslash_skip;
-static int ignore_backslash_newline;
-
-/* optimised getsc_bn() */
-#define o_getsc() (*source->str != '\0' && *source->str != '\\' && \
- !backslash_skip ? *source->str++ : getsc_bn())
-/* optimised getsc_uu() */
-#define o_getsc_u() ((*source->str != '\0') ? *source->str++ : getsc_uu())
-
-/* retrace helper */
-#define o_getsc_r(carg) { \
- int cev = (carg); \
- struct sretrace_info *rp = retrace_info; \
- \
- while (rp) { \
- Xcheck(rp->xs, rp->xp); \
- *rp->xp++ = cev; \
- rp = rp->next; \
- } \
- \
- return (cev); \
-}
-
-#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
-static int getsc(void);
-
-static int
-getsc(void)
-{
- o_getsc_r(o_getsc());
-}
-#else
-static int getsc_r(int);
-
-static int
-getsc_r(int c)
-{
- o_getsc_r(c);
-}
-
-#define getsc() getsc_r(o_getsc())
-#endif
-
-#define STATE_BSIZE 8
-
-#define PUSH_STATE(s) do { \
- if (++statep == state_info.end) \
- statep = push_state_i(&state_info, statep); \
- state = statep->type = (s); \
-} while (/* CONSTCOND */ 0)
-
-#define POP_STATE() do { \
- if (--statep == state_info.base) \
- statep = pop_state_i(&state_info, statep); \
- state = statep->type; \
-} while (/* CONSTCOND */ 0)
-
-#define PUSH_SRETRACE() do { \
- struct sretrace_info *ri; \
- \
- statep->ls_start = Xsavepos(ws, wp); \
- ri = alloc(sizeof(struct sretrace_info), ATEMP); \
- Xinit(ri->xs, ri->xp, 64, ATEMP); \
- ri->next = retrace_info; \
- retrace_info = ri; \
-} while (/* CONSTCOND */ 0)
-
-#define POP_SRETRACE() do { \
- wp = Xrestpos(ws, wp, statep->ls_start); \
- *retrace_info->xp = '\0'; \
- sp = Xstring(retrace_info->xs, retrace_info->xp); \
- dp = (void *)retrace_info; \
- retrace_info = retrace_info->next; \
- afree(dp, ATEMP); \
-} while (/* CONSTCOND */ 0)
-
-/**
- * Lexical analyser
- *
- * tokens are not regular expressions, they are LL(1).
- * for example, "${var:-${PWD}}", and "$(size $(whence ksh))".
- * hence the state stack. Note "$(...)" are now parsed recursively.
- */
-
-int
-yylex(int cf)
-{
- Lex_state states[STATE_BSIZE], *statep, *s2, *base;
- State_info state_info;
- int c, c2, state;
- size_t cz;
- XString ws; /* expandable output word */
- char *wp; /* output word pointer */
- char *sp, *dp;
-
- Again:
- states[0].type = SINVALID;
- states[0].ls_base = NULL;
- statep = &states[1];
- state_info.base = states;
- state_info.end = &state_info.base[STATE_BSIZE];
-
- Xinit(ws, wp, 64, ATEMP);
-
- backslash_skip = 0;
- ignore_backslash_newline = 0;
-
- if (cf & ONEWORD)
- state = SWORD;
- else if (cf & LETEXPR) {
- /* enclose arguments in (double) quotes */
- *wp++ = OQUOTE;
- state = SLETPAREN;
- statep->nparen = 0;
- } else {
- /* normal lexing */
- state = (cf & HEREDELIM) ? SHEREDELIM : SBASE;
- while ((c = getsc()) == ' ' || c == '\t')
- ;
- if (c == '#') {
- ignore_backslash_newline++;
- while ((c = getsc()) != '\0' && c != '\n')
- ;
- ignore_backslash_newline--;
- }
- ungetsc(c);
- }
- if (source->flags & SF_ALIAS) {
- /* trailing ' ' in alias definition */
- source->flags &= ~SF_ALIAS;
- cf |= ALIAS;
- }
-
- /* Initial state: one of SWORD SLETPAREN SHEREDELIM SBASE */
- statep->type = state;
-
- /* check for here string */
- if (state == SHEREDELIM) {
- c = getsc();
- if (c == '<') {
- state = SHEREDELIM;
- while ((c = getsc()) == ' ' || c == '\t')
- ;
- ungetsc(c);
- c = '<';
- goto accept_nonword;
- }
- ungetsc(c);
- }
-
- /* collect non-special or quoted characters to form word */
- while (!((c = getsc()) == 0 ||
- ((state == SBASE || state == SHEREDELIM) && ctype(c, C_LEX1)))) {
- if (state == SBASE &&
- subshell_nesting_type == /*{*/ '}' &&
- c == /*{*/ '}')
- /* possibly end ${ :;} */
- break;
- accept_nonword:
- Xcheck(ws, wp);
- switch (state) {
- case SADELIM:
- if (c == '(')
- statep->nparen++;
- else if (c == ')')
- statep->nparen--;
- else if (statep->nparen == 0 && (c == /*{*/ '}' ||
- c == (int)statep->ls_adelim.delimiter)) {
- *wp++ = ADELIM;
- *wp++ = c;
- if (c == /*{*/ '}' || --statep->ls_adelim.num == 0)
- POP_STATE();
- if (c == /*{*/ '}')
- POP_STATE();
- break;
- }
- /* FALLTHROUGH */
- case SBASE:
- if (c == '[' && (cf & (VARASN|ARRAYVAR))) {
- /* temporary */
- *wp = EOS;
- if (is_wdvarname(Xstring(ws, wp), false)) {
- char *p, *tmp;
-
- if (arraysub(&tmp)) {
- *wp++ = CHAR;
- *wp++ = c;
- for (p = tmp; *p; ) {
- Xcheck(ws, wp);
- *wp++ = CHAR;
- *wp++ = *p++;
- }
- afree(tmp, ATEMP);
- break;
- } else {
- Source *s;
-
- s = pushs(SREREAD,
- source->areap);
- s->start = s->str =
- s->u.freeme = tmp;
- s->next = source;
- source = s;
- }
- }
- *wp++ = CHAR;
- *wp++ = c;
- break;
- }
- /* FALLTHROUGH */
- Sbase1: /* includes *(...|...) pattern (*+?@!) */
- if (c == '*' || c == '@' || c == '+' || c == '?' ||
- c == '!') {
- c2 = getsc();
- if (c2 == '(' /*)*/ ) {
- *wp++ = OPAT;
- *wp++ = c;
- PUSH_STATE(SPATTERN);
- break;
- }
- ungetsc(c2);
- }
- /* FALLTHROUGH */
- Sbase2: /* doesn't include *(...|...) pattern (*+?@!) */
- switch (c) {
- case '\\':
- getsc_qchar:
- if ((c = getsc())) {
- /* trailing \ is lost */
- *wp++ = QCHAR;
- *wp++ = c;
- }
- break;
- case '\'':
- open_ssquote_unless_heredoc:
- if ((cf & HEREDOC))
- goto store_char;
- *wp++ = OQUOTE;
- ignore_backslash_newline++;
- PUSH_STATE(SSQUOTE);
- break;
- case '"':
- open_sdquote:
- *wp++ = OQUOTE;
- PUSH_STATE(SDQUOTE);
- break;
- case '$':
- /*
- * processing of dollar sign belongs into
- * Subst, except for those which can open
- * a string: $'…' and $"…"
- */
- subst_dollar_ex:
- c = getsc();
- switch (c) {
- case '"':
- goto open_sdquote;
- case '\'':
- goto open_sequote;
- default:
- goto SubstS;
- }
- default:
- goto Subst;
- }
- break;
-
- Subst:
- switch (c) {
- case '\\':
- c = getsc();
- switch (c) {
- case '"':
- if ((cf & HEREDOC))
- goto heredocquote;
- /* FALLTHROUGH */
- case '\\':
- case '$': case '`':
- store_qchar:
- *wp++ = QCHAR;
- *wp++ = c;
- break;
- default:
- heredocquote:
- Xcheck(ws, wp);
- if (c) {
- /* trailing \ is lost */
- *wp++ = CHAR;
- *wp++ = '\\';
- *wp++ = CHAR;
- *wp++ = c;
- }
- break;
- }
- break;
- case '$':
- c = getsc();
- SubstS:
- if (c == '(') /*)*/ {
- c = getsc();
- if (c == '(') /*)*/ {
- *wp++ = EXPRSUB;
- PUSH_STATE(SASPAREN);
- statep->nparen = 2;
- PUSH_SRETRACE();
- *retrace_info->xp++ = '(';
- } else {
- ungetsc(c);
- subst_command:
- c = COMSUB;
- subst_command2:
- sp = yyrecursive(c);
- cz = strlen(sp) + 1;
- XcheckN(ws, wp, cz);
- *wp++ = c;
- memcpy(wp, sp, cz);
- wp += cz;
- }
- } else if (c == '{') /*}*/ {
- if ((c = getsc()) == '|') {
- /*
- * non-subenvironment
- * value substitution
- */
- c = VALSUB;
- goto subst_command2;
- } else if (ctype(c, C_IFSWS)) {
- /*
- * non-subenvironment
- * "command" substitution
- */
- c = FUNSUB;
- goto subst_command2;
- }
- ungetsc(c);
- *wp++ = OSUBST;
- *wp++ = '{'; /*}*/
- wp = get_brace_var(&ws, wp);
- c = getsc();
- /* allow :# and :% (ksh88 compat) */
- if (c == ':') {
- *wp++ = CHAR;
- *wp++ = c;
- c = getsc();
- if (c == ':') {
- *wp++ = CHAR;
- *wp++ = '0';
- *wp++ = ADELIM;
- *wp++ = ':';
- PUSH_STATE(SBRACE);
- PUSH_STATE(SADELIM);
- statep->ls_adelim.delimiter = ':';
- statep->ls_adelim.num = 1;
- statep->nparen = 0;
- break;
- } else if (ksh_isdigit(c) ||
- c == '('/*)*/ || c == ' ' ||
- /*XXX what else? */
- c == '$') {
- /* substring subst. */
- if (c != ' ') {
- *wp++ = CHAR;
- *wp++ = ' ';
- }
- ungetsc(c);
- PUSH_STATE(SBRACE);
- PUSH_STATE(SADELIM);
- statep->ls_adelim.delimiter = ':';
- statep->ls_adelim.num = 2;
- statep->nparen = 0;
- break;
- }
- } else if (c == '/') {
- *wp++ = CHAR;
- *wp++ = c;
- if ((c = getsc()) == '/') {
- *wp++ = ADELIM;
- *wp++ = c;
- } else
- ungetsc(c);
- PUSH_STATE(SBRACE);
- PUSH_STATE(SADELIM);
- statep->ls_adelim.delimiter = '/';
- statep->ls_adelim.num = 1;
- statep->nparen = 0;
- break;
- }
- /*
- * If this is a trim operation,
- * treat (,|,) specially in STBRACE.
- */
- if (ctype(c, C_SUBOP2)) {
- ungetsc(c);
- if (Flag(FSH))
- PUSH_STATE(STBRACEBOURNE);
- else
- PUSH_STATE(STBRACEKORN);
- } else {
- ungetsc(c);
- if (state == SDQUOTE ||
- state == SQBRACE)
- PUSH_STATE(SQBRACE);
- else
- PUSH_STATE(SBRACE);
- }
- } else if (ksh_isalphx(c)) {
- *wp++ = OSUBST;
- *wp++ = 'X';
- do {
- Xcheck(ws, wp);
- *wp++ = c;
- c = getsc();
- } while (ksh_isalnux(c));
- *wp++ = '\0';
- *wp++ = CSUBST;
- *wp++ = 'X';
- ungetsc(c);
- } else if (ctype(c, C_VAR1 | C_DIGIT)) {
- Xcheck(ws, wp);
- *wp++ = OSUBST;
- *wp++ = 'X';
- *wp++ = c;
- *wp++ = '\0';
- *wp++ = CSUBST;
- *wp++ = 'X';
- } else {
- *wp++ = CHAR;
- *wp++ = '$';
- ungetsc(c);
- }
- break;
- case '`':
- subst_gravis:
- PUSH_STATE(SBQUOTE);
- *wp++ = COMSUB;
- /*
- * Need to know if we are inside double quotes
- * since sh/AT&T-ksh translate the \" to " in
- * "`...\"...`".
- * This is not done in POSIX mode (section
- * 3.2.3, Double Quotes: "The backquote shall
- * retain its special meaning introducing the
- * other form of command substitution (see
- * 3.6.3). The portion of the quoted string
- * from the initial backquote and the
- * characters up to the next backquote that
- * is not preceded by a backslash (having
- * escape characters removed) defines that
- * command whose output replaces `...` when
- * the word is expanded."
- * Section 3.6.3, Command Substitution:
- * "Within the backquoted style of command
- * substitution, backslash shall retain its
- * literal meaning, except when followed by
- * $ ` \.").
- */
- statep->ls_bool = false;
- s2 = statep;
- base = state_info.base;
- while (/* CONSTCOND */ 1) {
- for (; s2 != base; s2--) {
- if (s2->type == SDQUOTE) {
- statep->ls_bool = true;
- break;
- }
- }
- if (s2 != base)
- break;
- if (!(s2 = s2->ls_base))
- break;
- base = s2-- - STATE_BSIZE;
- }
- break;
- case QCHAR:
- if (cf & LQCHAR) {
- *wp++ = QCHAR;
- *wp++ = getsc();
- break;
- }
- /* FALLTHROUGH */
- default:
- store_char:
- *wp++ = CHAR;
- *wp++ = c;
- }
- break;
-
- case SEQUOTE:
- if (c == '\'') {
- POP_STATE();
- *wp++ = CQUOTE;
- ignore_backslash_newline--;
- } else if (c == '\\') {
- if ((c2 = unbksl(true, s_get, s_put)) == -1)
- c2 = s_get();
- if (c2 == 0)
- statep->ls_bool = true;
- if (!statep->ls_bool) {
- char ts[4];
-
- if ((unsigned int)c2 < 0x100) {
- *wp++ = QCHAR;
- *wp++ = c2;
- } else {
- cz = utf_wctomb(ts, c2 - 0x100);
- ts[cz] = 0;
- for (cz = 0; ts[cz]; ++cz) {
- *wp++ = QCHAR;
- *wp++ = ts[cz];
- }
- }
- }
- } else if (!statep->ls_bool) {
- *wp++ = QCHAR;
- *wp++ = c;
- }
- break;
-
- case SSQUOTE:
- if (c == '\'') {
- POP_STATE();
- if ((cf & HEREDOC) || state == SQBRACE)
- goto store_char;
- *wp++ = CQUOTE;
- ignore_backslash_newline--;
- } else {
- *wp++ = QCHAR;
- *wp++ = c;
- }
- break;
-
- case SDQUOTE:
- if (c == '"') {
- POP_STATE();
- *wp++ = CQUOTE;
- } else
- goto Subst;
- break;
-
- /* $(( ... )) */
- case SASPAREN:
- if (c == '(')
- statep->nparen++;
- else if (c == ')') {
- statep->nparen--;
- if (statep->nparen == 1) {
- /* end of EXPRSUB */
- POP_SRETRACE();
- POP_STATE();
-
- if ((c2 = getsc()) == /*(*/ ')') {
- cz = strlen(sp) - 2;
- XcheckN(ws, wp, cz);
- memcpy(wp, sp + 1, cz);
- wp += cz;
- afree(sp, ATEMP);
- *wp++ = '\0';
- break;
- } else {
- Source *s;
-
- ungetsc(c2);
- /*
- * mismatched parenthesis -
- * assume we were really
- * parsing a $(...) expression
- */
- --wp;
- s = pushs(SREREAD,
- source->areap);
- s->start = s->str =
- s->u.freeme = sp;
- s->next = source;
- source = s;
- goto subst_command;
- }
- }
- }
- /* reuse existing state machine */
- goto Sbase2;
-
- case SQBRACE:
- if (c == '\\') {
- /*
- * perform POSIX "quote removal" if the back-
- * slash is "special", i.e. same cases as the
- * {case '\\':} in Subst: plus closing brace;
- * in mksh code "quote removal" on '\c' means
- * write QCHAR+c, otherwise CHAR+\+CHAR+c are
- * emitted (in heredocquote:)
- */
- if ((c = getsc()) == '"' || c == '\\' ||
- c == '$' || c == '`' || c == /*{*/'}')
- goto store_qchar;
- goto heredocquote;
- }
- goto common_SQBRACE;
-
- case SBRACE:
- if (c == '\'')
- goto open_ssquote_unless_heredoc;
- else if (c == '\\')
- goto getsc_qchar;
- common_SQBRACE:
- if (c == '"')
- goto open_sdquote;
- else if (c == '$')
- goto subst_dollar_ex;
- else if (c == '`')
- goto subst_gravis;
- else if (c != /*{*/ '}')
- goto store_char;
- POP_STATE();
- *wp++ = CSUBST;
- *wp++ = /*{*/ '}';
- break;
-
- /* Same as SBASE, except (,|,) treated specially */
- case STBRACEKORN:
- if (c == '|')
- *wp++ = SPAT;
- else if (c == '(') {
- *wp++ = OPAT;
- /* simile for @ */
- *wp++ = ' ';
- PUSH_STATE(SPATTERN);
- } else /* FALLTHROUGH */
- case STBRACEBOURNE:
- if (c == /*{*/ '}') {
- POP_STATE();
- *wp++ = CSUBST;
- *wp++ = /*{*/ '}';
- } else
- goto Sbase1;
- break;
-
- case SBQUOTE:
- if (c == '`') {
- *wp++ = 0;
- POP_STATE();
- } else if (c == '\\') {
- switch (c = getsc()) {
- case 0:
- /* trailing \ is lost */
- break;
- case '\\':
- case '$': case '`':
- *wp++ = c;
- break;
- case '"':
- if (statep->ls_bool) {
- *wp++ = c;
- break;
- }
- /* FALLTHROUGH */
- default:
- *wp++ = '\\';
- *wp++ = c;
- break;
- }
- } else
- *wp++ = c;
- break;
-
- /* ONEWORD */
- case SWORD:
- goto Subst;
-
- /* LETEXPR: (( ... )) */
- case SLETPAREN:
- if (c == /*(*/ ')') {
- if (statep->nparen > 0)
- --statep->nparen;
- else if ((c2 = getsc()) == /*(*/ ')') {
- c = 0;
- *wp++ = CQUOTE;
- goto Done;
- } else {
- Source *s;
-
- ungetsc(c2);
- /*
- * mismatched parenthesis -
- * assume we were really
- * parsing a (...) expression
- */
- *wp = EOS;
- sp = Xstring(ws, wp);
- dp = wdstrip(sp, WDS_KEEPQ);
- s = pushs(SREREAD, source->areap);
- s->start = s->str = s->u.freeme = dp;
- s->next = source;
- source = s;
- return ('('/*)*/);
- }
- } else if (c == '(')
- /*
- * parentheses inside quotes and
- * backslashes are lost, but AT&T ksh
- * doesn't count them either
- */
- ++statep->nparen;
- goto Sbase2;
-
- /* <<, <<-, <<< delimiter */
- case SHEREDELIM:
- /*
- * here delimiters need a special case since
- * $ and `...` are not to be treated specially
- */
- switch (c) {
- case '\\':
- if ((c = getsc())) {
- /* trailing \ is lost */
- *wp++ = QCHAR;
- *wp++ = c;
- }
- break;
- case '\'':
- goto open_ssquote_unless_heredoc;
- case '$':
- if ((c2 = getsc()) == '\'') {
- open_sequote:
- *wp++ = OQUOTE;
- ignore_backslash_newline++;
- PUSH_STATE(SEQUOTE);
- statep->ls_bool = false;
- break;
- } else if (c2 == '"') {
- /* FALLTHROUGH */
- case '"':
- state = statep->type = SHEREDQUOTE;
- PUSH_SRETRACE();
- break;
- }
- ungetsc(c2);
- /* FALLTHROUGH */
- default:
- *wp++ = CHAR;
- *wp++ = c;
- }
- break;
-
- /* " in <<, <<-, <<< delimiter */
- case SHEREDQUOTE:
- if (c != '"')
- goto Subst;
- POP_SRETRACE();
- dp = strnul(sp) - 1;
- /* remove the trailing double quote */
- *dp = '\0';
- /* store the quoted string */
- *wp++ = OQUOTE;
- XcheckN(ws, wp, (dp - sp));
- dp = sp;
- while ((c = *dp++)) {
- if (c == '\\') {
- switch ((c = *dp++)) {
- case '\\':
- case '"':
- case '$':
- case '`':
- break;
- default:
- *wp++ = CHAR;
- *wp++ = '\\';
- break;
- }
- }
- *wp++ = CHAR;
- *wp++ = c;
- }
- afree(sp, ATEMP);
- *wp++ = CQUOTE;
- state = statep->type = SHEREDELIM;
- break;
-
- /* in *(...|...) pattern (*+?@!) */
- case SPATTERN:
- if (c == /*(*/ ')') {
- *wp++ = CPAT;
- POP_STATE();
- } else if (c == '|') {
- *wp++ = SPAT;
- } else if (c == '(') {
- *wp++ = OPAT;
- /* simile for @ */
- *wp++ = ' ';
- PUSH_STATE(SPATTERN);
- } else
- goto Sbase1;
- break;
- }
- }
- Done:
- Xcheck(ws, wp);
- if (statep != &states[1])
- /* XXX figure out what is missing */
- yyerror("no closing quote\n");
-
- /* This done to avoid tests for SHEREDELIM wherever SBASE tested */
- if (state == SHEREDELIM)
- state = SBASE;
-
- dp = Xstring(ws, wp);
- if (state == SBASE && (
-#ifndef MKSH_LEGACY_MODE
- (c == '&' && !Flag(FSH) && !Flag(FPOSIX)) ||
-#endif
- c == '<' || c == '>')) {
- struct ioword *iop = alloc(sizeof(struct ioword), ATEMP);
-
- if (Xlength(ws, wp) == 0)
- iop->unit = c == '<' ? 0 : 1;
- else for (iop->unit = 0, c2 = 0; c2 < Xlength(ws, wp); c2 += 2) {
- if (dp[c2] != CHAR)
- goto no_iop;
- if (!ksh_isdigit(dp[c2 + 1]))
- goto no_iop;
- iop->unit = (iop->unit * 10) + dp[c2 + 1] - '0';
- }
-
- if (iop->unit >= FDBASE)
- goto no_iop;
-
- if (c == '&') {
- if ((c2 = getsc()) != '>') {
- ungetsc(c2);
- goto no_iop;
- }
- c = c2;
- iop->flag = IOBASH;
- } else
- iop->flag = 0;
-
- c2 = getsc();
- /* <<, >>, <> are ok, >< is not */
- if (c == c2 || (c == '<' && c2 == '>')) {
- iop->flag |= c == c2 ?
- (c == '>' ? IOCAT : IOHERE) : IORDWR;
- if (iop->flag == IOHERE) {
- if ((c2 = getsc()) == '-') {
- iop->flag |= IOSKIP;
- c2 = getsc();
- } else if (c2 == '<')
- iop->flag |= IOHERESTR;
- ungetsc(c2);
- if (c2 == '\n')
- iop->flag |= IONDELIM;
- }
- } else if (c2 == '&')
- iop->flag |= IODUP | (c == '<' ? IORDUP : 0);
- else {
- iop->flag |= c == '>' ? IOWRITE : IOREAD;
- if (c == '>' && c2 == '|')
- iop->flag |= IOCLOB;
- else
- ungetsc(c2);
- }
-
- iop->name = NULL;
- iop->delim = NULL;
- iop->heredoc = NULL;
- /* free word */
- Xfree(ws, wp);
- yylval.iop = iop;
- return (REDIR);
- no_iop:
- afree(iop, ATEMP);
- }
-
- if (wp == dp && state == SBASE) {
- /* free word */
- Xfree(ws, wp);
- /* no word, process LEX1 character */
- if ((c == '|') || (c == '&') || (c == ';') || (c == '('/*)*/)) {
- if ((c2 = getsc()) == c)
- c = (c == ';') ? BREAK :
- (c == '|') ? LOGOR :
- (c == '&') ? LOGAND :
- /* c == '(' ) */ MDPAREN;
- else if (c == '|' && c2 == '&')
- c = COPROC;
- else if (c == ';' && c2 == '|')
- c = BRKEV;
- else if (c == ';' && c2 == '&')
- c = BRKFT;
- else
- ungetsc(c2);
-#ifndef MKSH_SMALL
- if (c == BREAK) {
- if ((c2 = getsc()) == '&')
- c = BRKEV;
- else
- ungetsc(c2);
- }
-#endif
- } else if (c == '\n') {
- gethere(false);
- if (cf & CONTIN)
- goto Again;
- } else if (c == '\0')
- /* need here strings at EOF */
- gethere(true);
- return (c);
- }
-
- /* terminate word */
- *wp++ = EOS;
- yylval.cp = Xclose(ws, wp);
- if (state == SWORD || state == SLETPAREN
- /* XXX ONEWORD? */)
- return (LWORD);
-
- /* unget terminator */
- ungetsc(c);
-
- /*
- * note: the alias-vs-function code below depends on several
- * interna: starting from here, source->str is not modified;
- * the way getsc() and ungetsc() operate; etc.
- */
-
- /* copy word to unprefixed string ident */
- sp = yylval.cp;
- dp = ident;
- if ((cf & HEREDELIM) && (sp[1] == '<'))
- while ((dp - ident) < IDENT) {
- if ((c = *sp++) == CHAR)
- *dp++ = *sp++;
- else if ((c != OQUOTE) && (c != CQUOTE))
- break;
- }
- else
- while ((dp - ident) < IDENT && (c = *sp++) == CHAR)
- *dp++ = *sp++;
- /* Make sure the ident array stays '\0' padded */
- memset(dp, 0, (ident + IDENT) - dp + 1);
- if (c != EOS)
- /* word is not unquoted */
- *ident = '\0';
-
- if (*ident != '\0' && (cf & (KEYWORD | ALIAS))) {
- struct tbl *p;
- uint32_t h = hash(ident);
-
- if ((cf & KEYWORD) && (p = ktsearch(&keywords, ident, h)) &&
- (!(cf & ESACONLY) || p->val.i == ESAC ||
- p->val.i == /*{*/ '}')) {
- afree(yylval.cp, ATEMP);
- return (p->val.i);
- }
- if ((cf & ALIAS) && (p = ktsearch(&aliases, ident, h)) &&
- (p->flag & ISSET)) {
- /*
- * this still points to the same character as the
- * ungetsc'd terminator from above
- */
- const char *cp = source->str;
-
- /* prefer POSIX but not Korn functions over aliases */
- while (*cp == ' ' || *cp == '\t')
- /*
- * this is like getsc() without skipping
- * over Source boundaries (including not
- * parsing ungetsc'd characters that got
- * pushed into an SREREAD) which is what
- * we want here anyway: find out whether
- * the alias name is followed by a POSIX
- * function definition (only the opening
- * parenthesis is checked though)
- */
- ++cp;
- /* prefer functions over aliases */
- if (cp[0] != '(' || cp[1] != ')') {
- Source *s = source;
-
- while (s && (s->flags & SF_HASALIAS))
- if (s->u.tblp == p)
- return (LWORD);
- else
- s = s->next;
- /* push alias expansion */
- s = pushs(SALIAS, source->areap);
- s->start = s->str = p->val.s;
- s->u.tblp = p;
- s->flags |= SF_HASALIAS;
- s->next = source;
- if (source->type == SEOF) {
- /* prevent infinite recursion at EOS */
- source->u.tblp = p;
- source->flags |= SF_HASALIAS;
- }
- source = s;
- afree(yylval.cp, ATEMP);
- goto Again;
- }
- }
- }
-
- return (LWORD);
-}
-
-static void
-gethere(bool iseof)
-{
- struct ioword **p;
-
- for (p = heres; p < herep; p++)
- if (iseof && !((*p)->flag & IOHERESTR))
- /* only here strings at EOF */
- return;
- else
- readhere(*p);
- herep = heres;
-}
-
-/*
- * read "<<word" text into temp file
- */
-
-static void
-readhere(struct ioword *iop)
-{
- int c;
- const char *eof, *eofp;
- XString xs;
- char *xp;
- int xpos;
-
- if (iop->flag & IOHERESTR) {
- /* process the here string */
- iop->heredoc = xp = evalstr(iop->delim, DOBLANK);
- xpos = strlen(xp) - 1;
- memmove(xp, xp + 1, xpos);
- xp[xpos] = '\n';
- return;
- }
-
- eof = iop->flag & IONDELIM ? "<<" : evalstr(iop->delim, 0);
-
- if (!(iop->flag & IOEVAL))
- ignore_backslash_newline++;
-
- Xinit(xs, xp, 256, ATEMP);
-
- heredoc_read_line:
- /* beginning of line */
- eofp = eof;
- xpos = Xsavepos(xs, xp);
- if (iop->flag & IOSKIP) {
- /* skip over leading tabs */
- while ((c = getsc()) == '\t')
- /* nothing */;
- goto heredoc_parse_char;
- }
- heredoc_read_char:
- c = getsc();
- heredoc_parse_char:
- /* compare with here document marker */
- if (!*eofp) {
- /* end of here document marker, what to do? */
- switch (c) {
- case /*(*/ ')':
- if (!subshell_nesting_type)
- /*-
- * not allowed outside $(...) or (...)
- * => mismatch
- */
- break;
- /* allow $(...) or (...) to close here */
- ungetsc(/*(*/ ')');
- /* FALLTHROUGH */
- case 0:
- /*
- * Allow EOF here to commands without trailing
- * newlines (mksh -c '...') will work as well.
- */
- case '\n':
- /* Newline terminates here document marker */
- goto heredoc_found_terminator;
- }
- } else if (c == *eofp++)
- /* store; then read and compare next character */
- goto heredoc_store_and_loop;
- /* nope, mismatch; read until end of line */
- while (c != '\n') {
- if (!c)
- /* oops, reached EOF */
- yyerror("%s '%s' unclosed\n", "here document", eof);
- /* store character */
- Xcheck(xs, xp);
- Xput(xs, xp, c);
- /* read next character */
- c = getsc();
- }
- /* we read a newline as last character */
- heredoc_store_and_loop:
- /* store character */
- Xcheck(xs, xp);
- Xput(xs, xp, c);
- if (c == '\n')
- goto heredoc_read_line;
- goto heredoc_read_char;
-
- heredoc_found_terminator:
- /* jump back to saved beginning of line */
- xp = Xrestpos(xs, xp, xpos);
- /* terminate, close and store */
- Xput(xs, xp, '\0');
- iop->heredoc = Xclose(xs, xp);
-
- if (!(iop->flag & IOEVAL))
- ignore_backslash_newline--;
-}
-
-void
-yyerror(const char *fmt, ...)
-{
- va_list va;
-
- /* pop aliases and re-reads */
- while (source->type == SALIAS || source->type == SREREAD)
- source = source->next;
- /* zap pending input */
- source->str = null;
-
- error_prefix(true);
- va_start(va, fmt);
- shf_vfprintf(shl_out, fmt, va);
- va_end(va);
- errorfz();
-}
-
-/*
- * input for yylex with alias expansion
- */
-
-Source *
-pushs(int type, Area *areap)
-{
- Source *s;
-
- s = alloc(sizeof(Source), areap);
- memset(s, 0, sizeof(Source));
- s->type = type;
- s->str = null;
- s->areap = areap;
- if (type == SFILE || type == SSTDIN)
- XinitN(s->xs, 256, s->areap);
- return (s);
-}
-
-static int
-getsc_uu(void)
-{
- Source *s = source;
- int c;
-
- while ((c = *s->str++) == 0) {
- /* return 0 for EOF by default */
- s->str = NULL;
- switch (s->type) {
- case SEOF:
- s->str = null;
- return (0);
-
- case SSTDIN:
- case SFILE:
- getsc_line(s);
- break;
-
- case SWSTR:
- break;
-
- case SSTRING:
- case SSTRINGCMDLINE:
- break;
-
- case SWORDS:
- s->start = s->str = *s->u.strv++;
- s->type = SWORDSEP;
- break;
-
- case SWORDSEP:
- if (*s->u.strv == NULL) {
- s->start = s->str = "\n";
- s->type = SEOF;
- } else {
- s->start = s->str = " ";
- s->type = SWORDS;
- }
- break;
-
- case SALIAS:
- if (s->flags & SF_ALIASEND) {
- /* pass on an unused SF_ALIAS flag */
- source = s->next;
- source->flags |= s->flags & SF_ALIAS;
- s = source;
- } else if (*s->u.tblp->val.s &&
- (c = strnul(s->u.tblp->val.s)[-1], ksh_isspace(c))) {
- /* pop source stack */
- source = s = s->next;
- /*
- * Note that this alias ended with a
- * space, enabling alias expansion on
- * the following word.
- */
- s->flags |= SF_ALIAS;
- } else {
- /*
- * At this point, we need to keep the current
- * alias in the source list so recursive
- * aliases can be detected and we also need to
- * return the next character. Do this by
- * temporarily popping the alias to get the
- * next character and then put it back in the
- * source list with the SF_ALIASEND flag set.
- */
- /* pop source stack */
- source = s->next;
- source->flags |= s->flags & SF_ALIAS;
- c = getsc_uu();
- if (c) {
- s->flags |= SF_ALIASEND;
- s->ugbuf[0] = c; s->ugbuf[1] = '\0';
- s->start = s->str = s->ugbuf;
- s->next = source;
- source = s;
- } else {
- s = source;
- /* avoid reading EOF twice */
- s->str = NULL;
- break;
- }
- }
- continue;
-
- case SREREAD:
- if (s->start != s->ugbuf)
- /* yuck */
- afree(s->u.freeme, ATEMP);
- source = s = s->next;
- continue;
- }
- if (s->str == NULL) {
- s->type = SEOF;
- s->start = s->str = null;
- return ('\0');
- }
- if (s->flags & SF_ECHO) {
- shf_puts(s->str, shl_out);
- shf_flush(shl_out);
- }
- }
- return (c);
-}
-
-static void
-getsc_line(Source *s)
-{
- char *xp = Xstring(s->xs, xp), *cp;
- bool interactive = Flag(FTALKING) && s->type == SSTDIN;
- bool have_tty = tobool(interactive && (s->flags & SF_TTY));
-
- /* Done here to ensure nothing odd happens when a timeout occurs */
- XcheckN(s->xs, xp, LINE);
- *xp = '\0';
- s->start = s->str = xp;
-
- if (have_tty && ksh_tmout) {
- ksh_tmout_state = TMOUT_READING;
- alarm(ksh_tmout);
- }
- if (interactive)
- change_winsz();
-#ifndef MKSH_NO_CMDLINE_EDITING
- if (have_tty && (
-#if !MKSH_S_NOVI
- Flag(FVI) ||
-#endif
- Flag(FEMACS) || Flag(FGMACS))) {
- int nread;
-
- nread = x_read(xp);
- if (nread < 0)
- /* read error */
- nread = 0;
- xp[nread] = '\0';
- xp += nread;
- } else
-#endif
- {
- if (interactive)
- pprompt(prompt, 0);
- else
- s->line++;
-
- while (/* CONSTCOND */ 1) {
- char *p = shf_getse(xp, Xnleft(s->xs, xp), s->u.shf);
-
- if (!p && shf_error(s->u.shf) &&
- shf_errno(s->u.shf) == EINTR) {
- shf_clearerr(s->u.shf);
- if (trap)
- runtraps(0);
- continue;
- }
- if (!p || (xp = p, xp[-1] == '\n'))
- break;
- /* double buffer size */
- /* move past NUL so doubling works... */
- xp++;
- XcheckN(s->xs, xp, Xlength(s->xs, xp));
- /* ...and move back again */
- xp--;
- }
- /*
- * flush any unwanted input so other programs/builtins
- * can read it. Not very optimal, but less error prone
- * than flushing else where, dealing with redirections,
- * etc.
- * TODO: reduce size of shf buffer (~128?) if SSTDIN
- */
- if (s->type == SSTDIN)
- shf_flush(s->u.shf);
- }
- /*
- * XXX: temporary kludge to restore source after a
- * trap may have been executed.
- */
- source = s;
- if (have_tty && ksh_tmout) {
- ksh_tmout_state = TMOUT_EXECUTING;
- alarm(0);
- }
- cp = Xstring(s->xs, xp);
- s->start = s->str = cp;
- strip_nuls(Xstring(s->xs, xp), Xlength(s->xs, xp));
- /* Note: if input is all nulls, this is not eof */
- if (Xlength(s->xs, xp) == 0) {
- /* EOF */
- if (s->type == SFILE)
- shf_fdclose(s->u.shf);
- s->str = NULL;
- } else if (interactive && *s->str &&
- (cur_prompt != PS1 || !ctype(*s->str, C_IFS | C_IFSWS))) {
- histsave(&s->line, s->str, true, true);
-#if !defined(MKSH_SMALL) && HAVE_PERSISTENT_HISTORY
- } else if (interactive && cur_prompt == PS1) {
- cp = Xstring(s->xs, xp);
- while (*cp && ctype(*cp, C_IFSWS))
- ++cp;
- if (!*cp)
- histsync();
-#endif
- }
- if (interactive)
- set_prompt(PS2, NULL);
-}
-
-void
-set_prompt(int to, Source *s)
-{
- cur_prompt = to;
-
- switch (to) {
- /* command */
- case PS1:
- /*
- * Substitute ! and !! here, before substitutions are done
- * so ! in expanded variables are not expanded.
- * NOTE: this is not what AT&T ksh does (it does it after
- * substitutions, POSIX doesn't say which is to be done.
- */
- {
- struct shf *shf;
- char * volatile ps1;
- Area *saved_atemp;
-
- ps1 = str_val(global("PS1"));
- shf = shf_sopen(NULL, strlen(ps1) * 2,
- SHF_WR | SHF_DYNAMIC, NULL);
- while (*ps1)
- if (*ps1 != '!' || *++ps1 == '!')
- shf_putchar(*ps1++, shf);
- else
- shf_fprintf(shf, "%d",
- s ? s->line + 1 : 0);
- ps1 = shf_sclose(shf);
- saved_atemp = ATEMP;
- newenv(E_ERRH);
- if (kshsetjmp(e->jbuf)) {
- prompt = safe_prompt;
- /*
- * Don't print an error - assume it has already
- * been printed. Reason is we may have forked
- * to run a command and the child may be
- * unwinding its stack through this code as it
- * exits.
- */
- } else {
- char *cp = substitute(ps1, 0);
- strdupx(prompt, cp, saved_atemp);
- }
- quitenv(NULL);
- }
- break;
- /* command continuation */
- case PS2:
- prompt = str_val(global("PS2"));
- break;
- }
-}
-
-int
-pprompt(const char *cp, int ntruncate)
-{
- int columns = 0, lines = 0;
- bool indelimit = false;
- char delimiter = 0;
-
- /*
- * Undocumented AT&T ksh feature:
- * If the second char in the prompt string is \r then the first
- * char is taken to be a non-printing delimiter and any chars
- * between two instances of the delimiter are not considered to
- * be part of the prompt length
- */
- if (*cp && cp[1] == '\r') {
- delimiter = *cp;
- cp += 2;
- }
- for (; *cp; cp++) {
- if (indelimit && *cp != delimiter)
- ;
- else if (*cp == '\n' || *cp == '\r') {
- lines += columns / x_cols + ((*cp == '\n') ? 1 : 0);
- columns = 0;
- } else if (*cp == '\t') {
- columns = (columns | 7) + 1;
- } else if (*cp == '\b') {
- if (columns > 0)
- columns--;
- } else if (*cp == delimiter)
- indelimit = !indelimit;
- else if (UTFMODE && ((unsigned char)*cp > 0x7F)) {
- const char *cp2;
- columns += utf_widthadj(cp, &cp2);
- if (indelimit ||
- (ntruncate < (x_cols * lines + columns)))
- shf_write(cp, cp2 - cp, shl_out);
- cp = cp2 - /* loop increment */ 1;
- continue;
- } else
- columns++;
- if ((*cp != delimiter) &&
- (indelimit || (ntruncate < (x_cols * lines + columns))))
- shf_putc(*cp, shl_out);
- }
- shf_flush(shl_out);
- return (x_cols * lines + columns);
-}
-
-/*
- * Read the variable part of a ${...} expression (i.e. up to but not
- * including the :[-+?=#%] or close-brace).
- */
-static char *
-get_brace_var(XString *wsp, char *wp)
-{
- char c;
- enum parse_state {
- PS_INITIAL, PS_SAW_HASH, PS_IDENT,
- PS_NUMBER, PS_VAR1
- } state = PS_INITIAL;
-
- while (/* CONSTCOND */ 1) {
- c = getsc();
- /* State machine to figure out where the variable part ends. */
- switch (state) {
- case PS_INITIAL:
- if (c == '#' || c == '!' || c == '%') {
- state = PS_SAW_HASH;
- break;
- }
- /* FALLTHROUGH */
- case PS_SAW_HASH:
- if (ksh_isalphx(c))
- state = PS_IDENT;
- else if (ksh_isdigit(c))
- state = PS_NUMBER;
- else if (c == '#') {
- if (state == PS_SAW_HASH) {
- char c2;
-
- c2 = getsc();
- ungetsc(c2);
- if (c2 != /*{*/ '}') {
- ungetsc(c);
- goto out;
- }
- }
- state = PS_VAR1;
- } else if (ctype(c, C_VAR1))
- state = PS_VAR1;
- else
- goto out;
- break;
- case PS_IDENT:
- if (!ksh_isalnux(c)) {
- if (c == '[') {
- char *tmp, *p;
-
- if (!arraysub(&tmp))
- yyerror("missing ]\n");
- *wp++ = c;
- for (p = tmp; *p; ) {
- Xcheck(*wsp, wp);
- *wp++ = *p++;
- }
- afree(tmp, ATEMP);
- /* the ] */
- c = getsc();
- }
- goto out;
- }
- break;
- case PS_NUMBER:
- if (!ksh_isdigit(c))
- goto out;
- break;
- case PS_VAR1:
- goto out;
- }
- Xcheck(*wsp, wp);
- *wp++ = c;
- }
- out:
- /* end of variable part */
- *wp++ = '\0';
- ungetsc(c);
- return (wp);
-}
-
-/*
- * Save an array subscript - returns true if matching bracket found, false
- * if eof or newline was found.
- * (Returned string double null terminated)
- */
-static bool
-arraysub(char **strp)
-{
- XString ws;
- char *wp, c;
- /* we are just past the initial [ */
- unsigned int depth = 1;
-
- Xinit(ws, wp, 32, ATEMP);
-
- do {
- c = getsc();
- Xcheck(ws, wp);
- *wp++ = c;
- if (c == '[')
- depth++;
- else if (c == ']')
- depth--;
- } while (depth > 0 && c && c != '\n');
-
- *wp++ = '\0';
- *strp = Xclose(ws, wp);
-
- return (tobool(depth == 0));
-}
-
-/* Unget a char: handles case when we are already at the start of the buffer */
-static void
-ungetsc(int c)
-{
- struct sretrace_info *rp = retrace_info;
-
- if (backslash_skip)
- backslash_skip--;
- /* Don't unget EOF... */
- if (source->str == null && c == '\0')
- return;
- while (rp) {
- if (Xlength(rp->xs, rp->xp))
- rp->xp--;
- rp = rp->next;
- }
- ungetsc_i(c);
-}
-static void
-ungetsc_i(int c)
-{
- if (source->str > source->start)
- source->str--;
- else {
- Source *s;
-
- s = pushs(SREREAD, source->areap);
- s->ugbuf[0] = c; s->ugbuf[1] = '\0';
- s->start = s->str = s->ugbuf;
- s->next = source;
- source = s;
- }
-}
-
-
-/* Called to get a char that isn't a \newline sequence. */
-static int
-getsc_bn(void)
-{
- int c, c2;
-
- if (ignore_backslash_newline)
- return (o_getsc_u());
-
- if (backslash_skip == 1) {
- backslash_skip = 2;
- return (o_getsc_u());
- }
-
- backslash_skip = 0;
-
- while (/* CONSTCOND */ 1) {
- c = o_getsc_u();
- if (c == '\\') {
- if ((c2 = o_getsc_u()) == '\n')
- /* ignore the \newline; get the next char... */
- continue;
- ungetsc_i(c2);
- backslash_skip = 1;
- }
- return (c);
- }
-}
-
-void
-yyskiputf8bom(void)
-{
- int c;
-
- if ((unsigned char)(c = o_getsc_u()) != 0xEF) {
- ungetsc_i(c);
- return;
- }
- if ((unsigned char)(c = o_getsc_u()) != 0xBB) {
- ungetsc_i(c);
- ungetsc_i(0xEF);
- return;
- }
- if ((unsigned char)(c = o_getsc_u()) != 0xBF) {
- ungetsc_i(c);
- ungetsc_i(0xBB);
- ungetsc_i(0xEF);
- return;
- }
- UTFMODE |= 8;
-}
-
-static Lex_state *
-push_state_i(State_info *si, Lex_state *old_end)
-{
- Lex_state *news = alloc2(STATE_BSIZE, sizeof(Lex_state), ATEMP);
-
- news[0].ls_base = old_end;
- si->base = &news[0];
- si->end = &news[STATE_BSIZE];
- return (&news[1]);
-}
-
-static Lex_state *
-pop_state_i(State_info *si, Lex_state *old_end)
-{
- Lex_state *old_base = si->base;
-
- si->base = old_end->ls_base - STATE_BSIZE;
- si->end = old_end->ls_base;
-
- afree(old_base, ATEMP);
-
- return (si->base + STATE_BSIZE - 1);
-}
-
-static int
-s_get(void)
-{
- return (getsc());
-}
-
-static void
-s_put(int c)
-{
- ungetsc(c);
-}
Copied: vendor/MirOS/mksh/R50/lex.c (from rev 6707, vendor/MirOS/mksh/dist/lex.c)
===================================================================
--- vendor/MirOS/mksh/R50/lex.c (rev 0)
+++ vendor/MirOS/mksh/R50/lex.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1805 @@
+/* $OpenBSD: lex.c,v 1.49 2013/12/17 16:37:06 deraadt Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+
+__RCSID("$MirOS: src/bin/mksh/lex.c,v 1.193 2014/06/29 11:28:28 tg Exp $");
+
+/*
+ * states while lexing word
+ */
+#define SBASE 0 /* outside any lexical constructs */
+#define SWORD 1 /* implicit quoting for substitute() */
+#define SLETPAREN 2 /* inside (( )), implicit quoting */
+#define SSQUOTE 3 /* inside '' */
+#define SDQUOTE 4 /* inside "" */
+#define SEQUOTE 5 /* inside $'' */
+#define SBRACE 6 /* inside ${} */
+#define SQBRACE 7 /* inside "${}" */
+#define SBQUOTE 8 /* inside `` */
+#define SASPAREN 9 /* inside $(( )) */
+#define SHEREDELIM 10 /* parsing <<,<<-,<<< delimiter */
+#define SHEREDQUOTE 11 /* parsing " in <<,<<-,<<< delimiter */
+#define SPATTERN 12 /* parsing *(...|...) pattern (*+?@!) */
+#define SADELIM 13 /* like SBASE, looking for delimiter */
+#define STBRACEKORN 14 /* parsing ${...[#%]...} !FSH */
+#define STBRACEBOURNE 15 /* parsing ${...[#%]...} FSH */
+#define SINVALID 255 /* invalid state */
+
+struct sretrace_info {
+ struct sretrace_info *next;
+ XString xs;
+ char *xp;
+};
+
+/*
+ * Structure to keep track of the lexing state and the various pieces of info
+ * needed for each particular state.
+ */
+typedef struct lex_state {
+ union {
+ /* point to the next state block */
+ struct lex_state *base;
+ /* marks start of state output in output string */
+ int start;
+ /* SBQUOTE: true if in double quotes: "`...`" */
+ /* SEQUOTE: got NUL, ignore rest of string */
+ bool abool;
+ /* SADELIM information */
+ struct {
+ /* character to search for */
+ unsigned char delimiter;
+ /* max. number of delimiters */
+ unsigned char num;
+ } adelim;
+ } u;
+ /* count open parentheses */
+ short nparen;
+ /* type of this state */
+ uint8_t type;
+} Lex_state;
+#define ls_base u.base
+#define ls_start u.start
+#define ls_bool u.abool
+#define ls_adelim u.adelim
+
+typedef struct {
+ Lex_state *base;
+ Lex_state *end;
+} State_info;
+
+static void readhere(struct ioword *);
+static void ungetsc(int);
+static void ungetsc_i(int);
+static int getsc_uu(void);
+static void getsc_line(Source *);
+static int getsc_bn(void);
+static int s_get(void);
+static void s_put(int);
+static char *get_brace_var(XString *, char *);
+static bool arraysub(char **);
+static void gethere(bool);
+static Lex_state *push_state_i(State_info *, Lex_state *);
+static Lex_state *pop_state_i(State_info *, Lex_state *);
+
+static int backslash_skip;
+static int ignore_backslash_newline;
+
+/* optimised getsc_bn() */
+#define o_getsc() (*source->str != '\0' && *source->str != '\\' && \
+ !backslash_skip ? *source->str++ : getsc_bn())
+/* optimised getsc_uu() */
+#define o_getsc_u() ((*source->str != '\0') ? *source->str++ : getsc_uu())
+
+/* retrace helper */
+#define o_getsc_r(carg) { \
+ int cev = (carg); \
+ struct sretrace_info *rp = retrace_info; \
+ \
+ while (rp) { \
+ Xcheck(rp->xs, rp->xp); \
+ *rp->xp++ = cev; \
+ rp = rp->next; \
+ } \
+ \
+ return (cev); \
+}
+
+#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
+static int getsc(void);
+
+static int
+getsc(void)
+{
+ o_getsc_r(o_getsc());
+}
+#else
+static int getsc_r(int);
+
+static int
+getsc_r(int c)
+{
+ o_getsc_r(c);
+}
+
+#define getsc() getsc_r(o_getsc())
+#endif
+
+#define STATE_BSIZE 8
+
+#define PUSH_STATE(s) do { \
+ if (++statep == state_info.end) \
+ statep = push_state_i(&state_info, statep); \
+ state = statep->type = (s); \
+} while (/* CONSTCOND */ 0)
+
+#define POP_STATE() do { \
+ if (--statep == state_info.base) \
+ statep = pop_state_i(&state_info, statep); \
+ state = statep->type; \
+} while (/* CONSTCOND */ 0)
+
+#define PUSH_SRETRACE(s) do { \
+ struct sretrace_info *ri; \
+ \
+ PUSH_STATE(s); \
+ statep->ls_start = Xsavepos(ws, wp); \
+ ri = alloc(sizeof(struct sretrace_info), ATEMP); \
+ Xinit(ri->xs, ri->xp, 64, ATEMP); \
+ ri->next = retrace_info; \
+ retrace_info = ri; \
+} while (/* CONSTCOND */ 0)
+
+#define POP_SRETRACE() do { \
+ wp = Xrestpos(ws, wp, statep->ls_start); \
+ *retrace_info->xp = '\0'; \
+ sp = Xstring(retrace_info->xs, retrace_info->xp); \
+ dp = (void *)retrace_info; \
+ retrace_info = retrace_info->next; \
+ afree(dp, ATEMP); \
+ POP_STATE(); \
+} while (/* CONSTCOND */ 0)
+
+/**
+ * Lexical analyser
+ *
+ * tokens are not regular expressions, they are LL(1).
+ * for example, "${var:-${PWD}}", and "$(size $(whence ksh))".
+ * hence the state stack. Note "$(...)" are now parsed recursively.
+ */
+
+int
+yylex(int cf)
+{
+ Lex_state states[STATE_BSIZE], *statep, *s2, *base;
+ State_info state_info;
+ int c, c2, state;
+ size_t cz;
+ XString ws; /* expandable output word */
+ char *wp; /* output word pointer */
+ char *sp, *dp;
+
+ Again:
+ states[0].type = SINVALID;
+ states[0].ls_base = NULL;
+ statep = &states[1];
+ state_info.base = states;
+ state_info.end = &state_info.base[STATE_BSIZE];
+
+ Xinit(ws, wp, 64, ATEMP);
+
+ backslash_skip = 0;
+ ignore_backslash_newline = 0;
+
+ if (cf & ONEWORD)
+ state = SWORD;
+ else if (cf & LETEXPR) {
+ /* enclose arguments in (double) quotes */
+ *wp++ = OQUOTE;
+ state = SLETPAREN;
+ statep->nparen = 0;
+ } else {
+ /* normal lexing */
+ state = (cf & HEREDELIM) ? SHEREDELIM : SBASE;
+ while ((c = getsc()) == ' ' || c == '\t')
+ ;
+ if (c == '#') {
+ ignore_backslash_newline++;
+ while ((c = getsc()) != '\0' && c != '\n')
+ ;
+ ignore_backslash_newline--;
+ }
+ ungetsc(c);
+ }
+ if (source->flags & SF_ALIAS) {
+ /* trailing ' ' in alias definition */
+ source->flags &= ~SF_ALIAS;
+ cf |= ALIAS;
+ }
+
+ /* Initial state: one of SWORD SLETPAREN SHEREDELIM SBASE */
+ statep->type = state;
+
+ /* check for here string */
+ if (state == SHEREDELIM) {
+ c = getsc();
+ if (c == '<') {
+ state = SHEREDELIM;
+ while ((c = getsc()) == ' ' || c == '\t')
+ ;
+ ungetsc(c);
+ c = '<';
+ goto accept_nonword;
+ }
+ ungetsc(c);
+ }
+
+ /* collect non-special or quoted characters to form word */
+ while (!((c = getsc()) == 0 ||
+ ((state == SBASE || state == SHEREDELIM) && ctype(c, C_LEX1)))) {
+ if (state == SBASE &&
+ subshell_nesting_type == /*{*/ '}' &&
+ c == /*{*/ '}')
+ /* possibly end ${ :;} */
+ break;
+ accept_nonword:
+ Xcheck(ws, wp);
+ switch (state) {
+ case SADELIM:
+ if (c == '(')
+ statep->nparen++;
+ else if (c == ')')
+ statep->nparen--;
+ else if (statep->nparen == 0 && (c == /*{*/ '}' ||
+ c == (int)statep->ls_adelim.delimiter)) {
+ *wp++ = ADELIM;
+ *wp++ = c;
+ if (c == /*{*/ '}' || --statep->ls_adelim.num == 0)
+ POP_STATE();
+ if (c == /*{*/ '}')
+ POP_STATE();
+ break;
+ }
+ /* FALLTHROUGH */
+ case SBASE:
+ if (c == '[' && (cf & (VARASN|ARRAYVAR))) {
+ /* temporary */
+ *wp = EOS;
+ if (is_wdvarname(Xstring(ws, wp), false)) {
+ char *p, *tmp;
+
+ if (arraysub(&tmp)) {
+ *wp++ = CHAR;
+ *wp++ = c;
+ for (p = tmp; *p; ) {
+ Xcheck(ws, wp);
+ *wp++ = CHAR;
+ *wp++ = *p++;
+ }
+ afree(tmp, ATEMP);
+ break;
+ } else {
+ Source *s;
+
+ s = pushs(SREREAD,
+ source->areap);
+ s->start = s->str =
+ s->u.freeme = tmp;
+ s->next = source;
+ source = s;
+ }
+ }
+ *wp++ = CHAR;
+ *wp++ = c;
+ break;
+ }
+ /* FALLTHROUGH */
+ Sbase1: /* includes *(...|...) pattern (*+?@!) */
+ if (c == '*' || c == '@' || c == '+' || c == '?' ||
+ c == '!') {
+ c2 = getsc();
+ if (c2 == '(' /*)*/ ) {
+ *wp++ = OPAT;
+ *wp++ = c;
+ PUSH_STATE(SPATTERN);
+ break;
+ }
+ ungetsc(c2);
+ }
+ /* FALLTHROUGH */
+ Sbase2: /* doesn't include *(...|...) pattern (*+?@!) */
+ switch (c) {
+ case '\\':
+ getsc_qchar:
+ if ((c = getsc())) {
+ /* trailing \ is lost */
+ *wp++ = QCHAR;
+ *wp++ = c;
+ }
+ break;
+ case '\'':
+ open_ssquote_unless_heredoc:
+ if ((cf & HEREDOC))
+ goto store_char;
+ *wp++ = OQUOTE;
+ ignore_backslash_newline++;
+ PUSH_STATE(SSQUOTE);
+ break;
+ case '"':
+ open_sdquote:
+ *wp++ = OQUOTE;
+ PUSH_STATE(SDQUOTE);
+ break;
+ case '$':
+ /*
+ * processing of dollar sign belongs into
+ * Subst, except for those which can open
+ * a string: $'…' and $"…"
+ */
+ subst_dollar_ex:
+ c = getsc();
+ switch (c) {
+ case '"':
+ goto open_sdquote;
+ case '\'':
+ goto open_sequote;
+ default:
+ goto SubstS;
+ }
+ default:
+ goto Subst;
+ }
+ break;
+
+ Subst:
+ switch (c) {
+ case '\\':
+ c = getsc();
+ switch (c) {
+ case '"':
+ if ((cf & HEREDOC))
+ goto heredocquote;
+ /* FALLTHROUGH */
+ case '\\':
+ case '$': case '`':
+ store_qchar:
+ *wp++ = QCHAR;
+ *wp++ = c;
+ break;
+ default:
+ heredocquote:
+ Xcheck(ws, wp);
+ if (c) {
+ /* trailing \ is lost */
+ *wp++ = CHAR;
+ *wp++ = '\\';
+ *wp++ = CHAR;
+ *wp++ = c;
+ }
+ break;
+ }
+ break;
+ case '$':
+ c = getsc();
+ SubstS:
+ if (c == '(') /*)*/ {
+ c = getsc();
+ if (c == '(') /*)*/ {
+ *wp++ = EXPRSUB;
+ PUSH_SRETRACE(SASPAREN);
+ statep->nparen = 2;
+ *retrace_info->xp++ = '(';
+ } else {
+ ungetsc(c);
+ subst_command:
+ c = COMSUB;
+ subst_command2:
+ sp = yyrecursive(c);
+ cz = strlen(sp) + 1;
+ XcheckN(ws, wp, cz);
+ *wp++ = c;
+ memcpy(wp, sp, cz);
+ wp += cz;
+ }
+ } else if (c == '{') /*}*/ {
+ if ((c = getsc()) == '|') {
+ /*
+ * non-subenvironment
+ * value substitution
+ */
+ c = VALSUB;
+ goto subst_command2;
+ } else if (ctype(c, C_IFSWS)) {
+ /*
+ * non-subenvironment
+ * "command" substitution
+ */
+ c = FUNSUB;
+ goto subst_command2;
+ }
+ ungetsc(c);
+ *wp++ = OSUBST;
+ *wp++ = '{'; /*}*/
+ wp = get_brace_var(&ws, wp);
+ c = getsc();
+ /* allow :# and :% (ksh88 compat) */
+ if (c == ':') {
+ *wp++ = CHAR;
+ *wp++ = c;
+ c = getsc();
+ if (c == ':') {
+ *wp++ = CHAR;
+ *wp++ = '0';
+ *wp++ = ADELIM;
+ *wp++ = ':';
+ PUSH_STATE(SBRACE);
+ PUSH_STATE(SADELIM);
+ statep->ls_adelim.delimiter = ':';
+ statep->ls_adelim.num = 1;
+ statep->nparen = 0;
+ break;
+ } else if (ksh_isdigit(c) ||
+ c == '('/*)*/ || c == ' ' ||
+ /*XXX what else? */
+ c == '$') {
+ /* substring subst. */
+ if (c != ' ') {
+ *wp++ = CHAR;
+ *wp++ = ' ';
+ }
+ ungetsc(c);
+ PUSH_STATE(SBRACE);
+ PUSH_STATE(SADELIM);
+ statep->ls_adelim.delimiter = ':';
+ statep->ls_adelim.num = 2;
+ statep->nparen = 0;
+ break;
+ }
+ } else if (c == '/') {
+ *wp++ = CHAR;
+ *wp++ = c;
+ if ((c = getsc()) == '/') {
+ *wp++ = ADELIM;
+ *wp++ = c;
+ } else
+ ungetsc(c);
+ PUSH_STATE(SBRACE);
+ PUSH_STATE(SADELIM);
+ statep->ls_adelim.delimiter = '/';
+ statep->ls_adelim.num = 1;
+ statep->nparen = 0;
+ break;
+ }
+ /*
+ * If this is a trim operation,
+ * treat (,|,) specially in STBRACE.
+ */
+ if (ctype(c, C_SUBOP2)) {
+ ungetsc(c);
+ if (Flag(FSH))
+ PUSH_STATE(STBRACEBOURNE);
+ else
+ PUSH_STATE(STBRACEKORN);
+ } else {
+ ungetsc(c);
+ if (state == SDQUOTE ||
+ state == SQBRACE)
+ PUSH_STATE(SQBRACE);
+ else
+ PUSH_STATE(SBRACE);
+ }
+ } else if (ksh_isalphx(c)) {
+ *wp++ = OSUBST;
+ *wp++ = 'X';
+ do {
+ Xcheck(ws, wp);
+ *wp++ = c;
+ c = getsc();
+ } while (ksh_isalnux(c));
+ *wp++ = '\0';
+ *wp++ = CSUBST;
+ *wp++ = 'X';
+ ungetsc(c);
+ } else if (ctype(c, C_VAR1 | C_DIGIT)) {
+ Xcheck(ws, wp);
+ *wp++ = OSUBST;
+ *wp++ = 'X';
+ *wp++ = c;
+ *wp++ = '\0';
+ *wp++ = CSUBST;
+ *wp++ = 'X';
+ } else {
+ *wp++ = CHAR;
+ *wp++ = '$';
+ ungetsc(c);
+ }
+ break;
+ case '`':
+ subst_gravis:
+ PUSH_STATE(SBQUOTE);
+ *wp++ = COMSUB;
+ /*
+ * Need to know if we are inside double quotes
+ * since sh/AT&T-ksh translate the \" to " in
+ * "`...\"...`".
+ * This is not done in POSIX mode (section
+ * 3.2.3, Double Quotes: "The backquote shall
+ * retain its special meaning introducing the
+ * other form of command substitution (see
+ * 3.6.3). The portion of the quoted string
+ * from the initial backquote and the
+ * characters up to the next backquote that
+ * is not preceded by a backslash (having
+ * escape characters removed) defines that
+ * command whose output replaces `...` when
+ * the word is expanded."
+ * Section 3.6.3, Command Substitution:
+ * "Within the backquoted style of command
+ * substitution, backslash shall retain its
+ * literal meaning, except when followed by
+ * $ ` \.").
+ */
+ statep->ls_bool = false;
+ s2 = statep;
+ base = state_info.base;
+ while (/* CONSTCOND */ 1) {
+ for (; s2 != base; s2--) {
+ if (s2->type == SDQUOTE) {
+ statep->ls_bool = true;
+ break;
+ }
+ }
+ if (s2 != base)
+ break;
+ if (!(s2 = s2->ls_base))
+ break;
+ base = s2-- - STATE_BSIZE;
+ }
+ break;
+ case QCHAR:
+ if (cf & LQCHAR) {
+ *wp++ = QCHAR;
+ *wp++ = getsc();
+ break;
+ }
+ /* FALLTHROUGH */
+ default:
+ store_char:
+ *wp++ = CHAR;
+ *wp++ = c;
+ }
+ break;
+
+ case SEQUOTE:
+ if (c == '\'') {
+ POP_STATE();
+ *wp++ = CQUOTE;
+ ignore_backslash_newline--;
+ } else if (c == '\\') {
+ if ((c2 = unbksl(true, s_get, s_put)) == -1)
+ c2 = s_get();
+ if (c2 == 0)
+ statep->ls_bool = true;
+ if (!statep->ls_bool) {
+ char ts[4];
+
+ if ((unsigned int)c2 < 0x100) {
+ *wp++ = QCHAR;
+ *wp++ = c2;
+ } else {
+ cz = utf_wctomb(ts, c2 - 0x100);
+ ts[cz] = 0;
+ for (cz = 0; ts[cz]; ++cz) {
+ *wp++ = QCHAR;
+ *wp++ = ts[cz];
+ }
+ }
+ }
+ } else if (!statep->ls_bool) {
+ *wp++ = QCHAR;
+ *wp++ = c;
+ }
+ break;
+
+ case SSQUOTE:
+ if (c == '\'') {
+ POP_STATE();
+ if ((cf & HEREDOC) || state == SQBRACE)
+ goto store_char;
+ *wp++ = CQUOTE;
+ ignore_backslash_newline--;
+ } else {
+ *wp++ = QCHAR;
+ *wp++ = c;
+ }
+ break;
+
+ case SDQUOTE:
+ if (c == '"') {
+ POP_STATE();
+ *wp++ = CQUOTE;
+ } else
+ goto Subst;
+ break;
+
+ /* $(( ... )) */
+ case SASPAREN:
+ if (c == '(')
+ statep->nparen++;
+ else if (c == ')') {
+ statep->nparen--;
+ if (statep->nparen == 1) {
+ /* end of EXPRSUB */
+ POP_SRETRACE();
+
+ if ((c2 = getsc()) == /*(*/ ')') {
+ cz = strlen(sp) - 2;
+ XcheckN(ws, wp, cz);
+ memcpy(wp, sp + 1, cz);
+ wp += cz;
+ afree(sp, ATEMP);
+ *wp++ = '\0';
+ break;
+ } else {
+ Source *s;
+
+ ungetsc(c2);
+ /*
+ * mismatched parenthesis -
+ * assume we were really
+ * parsing a $(...) expression
+ */
+ --wp;
+ s = pushs(SREREAD,
+ source->areap);
+ s->start = s->str =
+ s->u.freeme = sp;
+ s->next = source;
+ source = s;
+ goto subst_command;
+ }
+ }
+ }
+ /* reuse existing state machine */
+ goto Sbase2;
+
+ case SQBRACE:
+ if (c == '\\') {
+ /*
+ * perform POSIX "quote removal" if the back-
+ * slash is "special", i.e. same cases as the
+ * {case '\\':} in Subst: plus closing brace;
+ * in mksh code "quote removal" on '\c' means
+ * write QCHAR+c, otherwise CHAR+\+CHAR+c are
+ * emitted (in heredocquote:)
+ */
+ if ((c = getsc()) == '"' || c == '\\' ||
+ c == '$' || c == '`' || c == /*{*/'}')
+ goto store_qchar;
+ goto heredocquote;
+ }
+ goto common_SQBRACE;
+
+ case SBRACE:
+ if (c == '\'')
+ goto open_ssquote_unless_heredoc;
+ else if (c == '\\')
+ goto getsc_qchar;
+ common_SQBRACE:
+ if (c == '"')
+ goto open_sdquote;
+ else if (c == '$')
+ goto subst_dollar_ex;
+ else if (c == '`')
+ goto subst_gravis;
+ else if (c != /*{*/ '}')
+ goto store_char;
+ POP_STATE();
+ *wp++ = CSUBST;
+ *wp++ = /*{*/ '}';
+ break;
+
+ /* Same as SBASE, except (,|,) treated specially */
+ case STBRACEKORN:
+ if (c == '|')
+ *wp++ = SPAT;
+ else if (c == '(') {
+ *wp++ = OPAT;
+ /* simile for @ */
+ *wp++ = ' ';
+ PUSH_STATE(SPATTERN);
+ } else /* FALLTHROUGH */
+ case STBRACEBOURNE:
+ if (c == /*{*/ '}') {
+ POP_STATE();
+ *wp++ = CSUBST;
+ *wp++ = /*{*/ '}';
+ } else
+ goto Sbase1;
+ break;
+
+ case SBQUOTE:
+ if (c == '`') {
+ *wp++ = 0;
+ POP_STATE();
+ } else if (c == '\\') {
+ switch (c = getsc()) {
+ case 0:
+ /* trailing \ is lost */
+ break;
+ case '\\':
+ case '$': case '`':
+ *wp++ = c;
+ break;
+ case '"':
+ if (statep->ls_bool) {
+ *wp++ = c;
+ break;
+ }
+ /* FALLTHROUGH */
+ default:
+ *wp++ = '\\';
+ *wp++ = c;
+ break;
+ }
+ } else
+ *wp++ = c;
+ break;
+
+ /* ONEWORD */
+ case SWORD:
+ goto Subst;
+
+ /* LETEXPR: (( ... )) */
+ case SLETPAREN:
+ if (c == /*(*/ ')') {
+ if (statep->nparen > 0)
+ --statep->nparen;
+ else if ((c2 = getsc()) == /*(*/ ')') {
+ c = 0;
+ *wp++ = CQUOTE;
+ goto Done;
+ } else {
+ Source *s;
+
+ ungetsc(c2);
+ /*
+ * mismatched parenthesis -
+ * assume we were really
+ * parsing a (...) expression
+ */
+ *wp = EOS;
+ sp = Xstring(ws, wp);
+ dp = wdstrip(sp, WDS_KEEPQ);
+ s = pushs(SREREAD, source->areap);
+ s->start = s->str = s->u.freeme = dp;
+ s->next = source;
+ source = s;
+ return ('('/*)*/);
+ }
+ } else if (c == '(')
+ /*
+ * parentheses inside quotes and
+ * backslashes are lost, but AT&T ksh
+ * doesn't count them either
+ */
+ ++statep->nparen;
+ goto Sbase2;
+
+ /* <<, <<-, <<< delimiter */
+ case SHEREDELIM:
+ /*
+ * here delimiters need a special case since
+ * $ and `...` are not to be treated specially
+ */
+ switch (c) {
+ case '\\':
+ if ((c = getsc())) {
+ /* trailing \ is lost */
+ *wp++ = QCHAR;
+ *wp++ = c;
+ }
+ break;
+ case '\'':
+ goto open_ssquote_unless_heredoc;
+ case '$':
+ if ((c2 = getsc()) == '\'') {
+ open_sequote:
+ *wp++ = OQUOTE;
+ ignore_backslash_newline++;
+ PUSH_STATE(SEQUOTE);
+ statep->ls_bool = false;
+ break;
+ } else if (c2 == '"') {
+ /* FALLTHROUGH */
+ case '"':
+ PUSH_SRETRACE(SHEREDQUOTE);
+ break;
+ }
+ ungetsc(c2);
+ /* FALLTHROUGH */
+ default:
+ *wp++ = CHAR;
+ *wp++ = c;
+ }
+ break;
+
+ /* " in <<, <<-, <<< delimiter */
+ case SHEREDQUOTE:
+ if (c != '"')
+ goto Subst;
+ POP_SRETRACE();
+ dp = strnul(sp) - 1;
+ /* remove the trailing double quote */
+ *dp = '\0';
+ /* store the quoted string */
+ *wp++ = OQUOTE;
+ XcheckN(ws, wp, (dp - sp));
+ dp = sp;
+ while ((c = *dp++)) {
+ if (c == '\\') {
+ switch ((c = *dp++)) {
+ case '\\':
+ case '"':
+ case '$':
+ case '`':
+ break;
+ default:
+ *wp++ = CHAR;
+ *wp++ = '\\';
+ break;
+ }
+ }
+ *wp++ = CHAR;
+ *wp++ = c;
+ }
+ afree(sp, ATEMP);
+ *wp++ = CQUOTE;
+ state = statep->type = SHEREDELIM;
+ break;
+
+ /* in *(...|...) pattern (*+?@!) */
+ case SPATTERN:
+ if (c == /*(*/ ')') {
+ *wp++ = CPAT;
+ POP_STATE();
+ } else if (c == '|') {
+ *wp++ = SPAT;
+ } else if (c == '(') {
+ *wp++ = OPAT;
+ /* simile for @ */
+ *wp++ = ' ';
+ PUSH_STATE(SPATTERN);
+ } else
+ goto Sbase1;
+ break;
+ }
+ }
+ Done:
+ Xcheck(ws, wp);
+ if (statep != &states[1])
+ /* XXX figure out what is missing */
+ yyerror("no closing quote\n");
+
+ /* This done to avoid tests for SHEREDELIM wherever SBASE tested */
+ if (state == SHEREDELIM)
+ state = SBASE;
+
+ dp = Xstring(ws, wp);
+ if (state == SBASE && (
+#ifndef MKSH_LEGACY_MODE
+ (c == '&' && !Flag(FSH) && !Flag(FPOSIX)) ||
+#endif
+ c == '<' || c == '>')) {
+ struct ioword *iop = alloc(sizeof(struct ioword), ATEMP);
+
+ if (Xlength(ws, wp) == 0)
+ iop->unit = c == '<' ? 0 : 1;
+ else for (iop->unit = 0, c2 = 0; c2 < Xlength(ws, wp); c2 += 2) {
+ if (dp[c2] != CHAR)
+ goto no_iop;
+ if (!ksh_isdigit(dp[c2 + 1]))
+ goto no_iop;
+ iop->unit = (iop->unit * 10) + dp[c2 + 1] - '0';
+ }
+
+ if (iop->unit >= FDBASE)
+ goto no_iop;
+
+ if (c == '&') {
+ if ((c2 = getsc()) != '>') {
+ ungetsc(c2);
+ goto no_iop;
+ }
+ c = c2;
+ iop->flag = IOBASH;
+ } else
+ iop->flag = 0;
+
+ c2 = getsc();
+ /* <<, >>, <> are ok, >< is not */
+ if (c == c2 || (c == '<' && c2 == '>')) {
+ iop->flag |= c == c2 ?
+ (c == '>' ? IOCAT : IOHERE) : IORDWR;
+ if (iop->flag == IOHERE) {
+ if ((c2 = getsc()) == '-') {
+ iop->flag |= IOSKIP;
+ c2 = getsc();
+ } else if (c2 == '<')
+ iop->flag |= IOHERESTR;
+ ungetsc(c2);
+ if (c2 == '\n')
+ iop->flag |= IONDELIM;
+ }
+ } else if (c2 == '&')
+ iop->flag |= IODUP | (c == '<' ? IORDUP : 0);
+ else {
+ iop->flag |= c == '>' ? IOWRITE : IOREAD;
+ if (c == '>' && c2 == '|')
+ iop->flag |= IOCLOB;
+ else
+ ungetsc(c2);
+ }
+
+ iop->name = NULL;
+ iop->delim = NULL;
+ iop->heredoc = NULL;
+ /* free word */
+ Xfree(ws, wp);
+ yylval.iop = iop;
+ return (REDIR);
+ no_iop:
+ afree(iop, ATEMP);
+ }
+
+ if (wp == dp && state == SBASE) {
+ /* free word */
+ Xfree(ws, wp);
+ /* no word, process LEX1 character */
+ if ((c == '|') || (c == '&') || (c == ';') || (c == '('/*)*/)) {
+ if ((c2 = getsc()) == c)
+ c = (c == ';') ? BREAK :
+ (c == '|') ? LOGOR :
+ (c == '&') ? LOGAND :
+ /* c == '(' ) */ MDPAREN;
+ else if (c == '|' && c2 == '&')
+ c = COPROC;
+ else if (c == ';' && c2 == '|')
+ c = BRKEV;
+ else if (c == ';' && c2 == '&')
+ c = BRKFT;
+ else
+ ungetsc(c2);
+#ifndef MKSH_SMALL
+ if (c == BREAK) {
+ if ((c2 = getsc()) == '&')
+ c = BRKEV;
+ else
+ ungetsc(c2);
+ }
+#endif
+ } else if (c == '\n') {
+ gethere(false);
+ if (cf & CONTIN)
+ goto Again;
+ } else if (c == '\0')
+ /* need here strings at EOF */
+ gethere(true);
+ return (c);
+ }
+
+ /* terminate word */
+ *wp++ = EOS;
+ yylval.cp = Xclose(ws, wp);
+ if (state == SWORD || state == SLETPAREN
+ /* XXX ONEWORD? */)
+ return (LWORD);
+
+ /* unget terminator */
+ ungetsc(c);
+
+ /*
+ * note: the alias-vs-function code below depends on several
+ * interna: starting from here, source->str is not modified;
+ * the way getsc() and ungetsc() operate; etc.
+ */
+
+ /* copy word to unprefixed string ident */
+ sp = yylval.cp;
+ dp = ident;
+ if ((cf & HEREDELIM) && (sp[1] == '<'))
+ while ((dp - ident) < IDENT) {
+ if ((c = *sp++) == CHAR)
+ *dp++ = *sp++;
+ else if ((c != OQUOTE) && (c != CQUOTE))
+ break;
+ }
+ else
+ while ((dp - ident) < IDENT && (c = *sp++) == CHAR)
+ *dp++ = *sp++;
+ /* Make sure the ident array stays '\0' padded */
+ memset(dp, 0, (ident + IDENT) - dp + 1);
+ if (c != EOS)
+ /* word is not unquoted */
+ *ident = '\0';
+
+ if (*ident != '\0' && (cf & (KEYWORD | ALIAS))) {
+ struct tbl *p;
+ uint32_t h = hash(ident);
+
+ if ((cf & KEYWORD) && (p = ktsearch(&keywords, ident, h)) &&
+ (!(cf & ESACONLY) || p->val.i == ESAC ||
+ p->val.i == /*{*/ '}')) {
+ afree(yylval.cp, ATEMP);
+ return (p->val.i);
+ }
+ if ((cf & ALIAS) && (p = ktsearch(&aliases, ident, h)) &&
+ (p->flag & ISSET)) {
+ /*
+ * this still points to the same character as the
+ * ungetsc'd terminator from above
+ */
+ const char *cp = source->str;
+
+ /* prefer POSIX but not Korn functions over aliases */
+ while (*cp == ' ' || *cp == '\t')
+ /*
+ * this is like getsc() without skipping
+ * over Source boundaries (including not
+ * parsing ungetsc'd characters that got
+ * pushed into an SREREAD) which is what
+ * we want here anyway: find out whether
+ * the alias name is followed by a POSIX
+ * function definition (only the opening
+ * parenthesis is checked though)
+ */
+ ++cp;
+ /* prefer functions over aliases */
+ if (cp[0] != '(' || cp[1] != ')') {
+ Source *s = source;
+
+ while (s && (s->flags & SF_HASALIAS))
+ if (s->u.tblp == p)
+ return (LWORD);
+ else
+ s = s->next;
+ /* push alias expansion */
+ s = pushs(SALIAS, source->areap);
+ s->start = s->str = p->val.s;
+ s->u.tblp = p;
+ s->flags |= SF_HASALIAS;
+ s->next = source;
+ if (source->type == SEOF) {
+ /* prevent infinite recursion at EOS */
+ source->u.tblp = p;
+ source->flags |= SF_HASALIAS;
+ }
+ source = s;
+ afree(yylval.cp, ATEMP);
+ goto Again;
+ }
+ }
+ }
+
+ return (LWORD);
+}
+
+static void
+gethere(bool iseof)
+{
+ struct ioword **p;
+
+ for (p = heres; p < herep; p++)
+ if (iseof && !((*p)->flag & IOHERESTR))
+ /* only here strings at EOF */
+ return;
+ else
+ readhere(*p);
+ herep = heres;
+}
+
+/*
+ * read "<<word" text into temp file
+ */
+
+static void
+readhere(struct ioword *iop)
+{
+ int c;
+ const char *eof, *eofp;
+ XString xs;
+ char *xp;
+ int xpos;
+
+ if (iop->flag & IOHERESTR) {
+ /* process the here string */
+ iop->heredoc = xp = evalstr(iop->delim, DOBLANK);
+ xpos = strlen(xp) - 1;
+ memmove(xp, xp + 1, xpos);
+ xp[xpos] = '\n';
+ return;
+ }
+
+ eof = iop->flag & IONDELIM ? "<<" : evalstr(iop->delim, 0);
+
+ if (!(iop->flag & IOEVAL))
+ ignore_backslash_newline++;
+
+ Xinit(xs, xp, 256, ATEMP);
+
+ heredoc_read_line:
+ /* beginning of line */
+ eofp = eof;
+ xpos = Xsavepos(xs, xp);
+ if (iop->flag & IOSKIP) {
+ /* skip over leading tabs */
+ while ((c = getsc()) == '\t')
+ /* nothing */;
+ goto heredoc_parse_char;
+ }
+ heredoc_read_char:
+ c = getsc();
+ heredoc_parse_char:
+ /* compare with here document marker */
+ if (!*eofp) {
+ /* end of here document marker, what to do? */
+ switch (c) {
+ case /*(*/ ')':
+ if (!subshell_nesting_type)
+ /*-
+ * not allowed outside $(...) or (...)
+ * => mismatch
+ */
+ break;
+ /* allow $(...) or (...) to close here */
+ ungetsc(/*(*/ ')');
+ /* FALLTHROUGH */
+ case 0:
+ /*
+ * Allow EOF here to commands without trailing
+ * newlines (mksh -c '...') will work as well.
+ */
+ case '\n':
+ /* Newline terminates here document marker */
+ goto heredoc_found_terminator;
+ }
+ } else if (c == *eofp++)
+ /* store; then read and compare next character */
+ goto heredoc_store_and_loop;
+ /* nope, mismatch; read until end of line */
+ while (c != '\n') {
+ if (!c)
+ /* oops, reached EOF */
+ yyerror("%s '%s' unclosed\n", "here document", eof);
+ /* store character */
+ Xcheck(xs, xp);
+ Xput(xs, xp, c);
+ /* read next character */
+ c = getsc();
+ }
+ /* we read a newline as last character */
+ heredoc_store_and_loop:
+ /* store character */
+ Xcheck(xs, xp);
+ Xput(xs, xp, c);
+ if (c == '\n')
+ goto heredoc_read_line;
+ goto heredoc_read_char;
+
+ heredoc_found_terminator:
+ /* jump back to saved beginning of line */
+ xp = Xrestpos(xs, xp, xpos);
+ /* terminate, close and store */
+ Xput(xs, xp, '\0');
+ iop->heredoc = Xclose(xs, xp);
+
+ if (!(iop->flag & IOEVAL))
+ ignore_backslash_newline--;
+}
+
+void
+yyerror(const char *fmt, ...)
+{
+ va_list va;
+
+ /* pop aliases and re-reads */
+ while (source->type == SALIAS || source->type == SREREAD)
+ source = source->next;
+ /* zap pending input */
+ source->str = null;
+
+ error_prefix(true);
+ va_start(va, fmt);
+ shf_vfprintf(shl_out, fmt, va);
+ va_end(va);
+ errorfz();
+}
+
+/*
+ * input for yylex with alias expansion
+ */
+
+Source *
+pushs(int type, Area *areap)
+{
+ Source *s;
+
+ s = alloc(sizeof(Source), areap);
+ memset(s, 0, sizeof(Source));
+ s->type = type;
+ s->str = null;
+ s->areap = areap;
+ if (type == SFILE || type == SSTDIN)
+ XinitN(s->xs, 256, s->areap);
+ return (s);
+}
+
+static int
+getsc_uu(void)
+{
+ Source *s = source;
+ int c;
+
+ while ((c = *s->str++) == 0) {
+ /* return 0 for EOF by default */
+ s->str = NULL;
+ switch (s->type) {
+ case SEOF:
+ s->str = null;
+ return (0);
+
+ case SSTDIN:
+ case SFILE:
+ getsc_line(s);
+ break;
+
+ case SWSTR:
+ break;
+
+ case SSTRING:
+ case SSTRINGCMDLINE:
+ break;
+
+ case SWORDS:
+ s->start = s->str = *s->u.strv++;
+ s->type = SWORDSEP;
+ break;
+
+ case SWORDSEP:
+ if (*s->u.strv == NULL) {
+ s->start = s->str = "\n";
+ s->type = SEOF;
+ } else {
+ s->start = s->str = " ";
+ s->type = SWORDS;
+ }
+ break;
+
+ case SALIAS:
+ if (s->flags & SF_ALIASEND) {
+ /* pass on an unused SF_ALIAS flag */
+ source = s->next;
+ source->flags |= s->flags & SF_ALIAS;
+ s = source;
+ } else if (*s->u.tblp->val.s &&
+ (c = strnul(s->u.tblp->val.s)[-1], ksh_isspace(c))) {
+ /* pop source stack */
+ source = s = s->next;
+ /*
+ * Note that this alias ended with a
+ * space, enabling alias expansion on
+ * the following word.
+ */
+ s->flags |= SF_ALIAS;
+ } else {
+ /*
+ * At this point, we need to keep the current
+ * alias in the source list so recursive
+ * aliases can be detected and we also need to
+ * return the next character. Do this by
+ * temporarily popping the alias to get the
+ * next character and then put it back in the
+ * source list with the SF_ALIASEND flag set.
+ */
+ /* pop source stack */
+ source = s->next;
+ source->flags |= s->flags & SF_ALIAS;
+ c = getsc_uu();
+ if (c) {
+ s->flags |= SF_ALIASEND;
+ s->ugbuf[0] = c; s->ugbuf[1] = '\0';
+ s->start = s->str = s->ugbuf;
+ s->next = source;
+ source = s;
+ } else {
+ s = source;
+ /* avoid reading EOF twice */
+ s->str = NULL;
+ break;
+ }
+ }
+ continue;
+
+ case SREREAD:
+ if (s->start != s->ugbuf)
+ /* yuck */
+ afree(s->u.freeme, ATEMP);
+ source = s = s->next;
+ continue;
+ }
+ if (s->str == NULL) {
+ s->type = SEOF;
+ s->start = s->str = null;
+ return ('\0');
+ }
+ if (s->flags & SF_ECHO) {
+ shf_puts(s->str, shl_out);
+ shf_flush(shl_out);
+ }
+ }
+ return (c);
+}
+
+static void
+getsc_line(Source *s)
+{
+ char *xp = Xstring(s->xs, xp), *cp;
+ bool interactive = Flag(FTALKING) && s->type == SSTDIN;
+ bool have_tty = tobool(interactive && (s->flags & SF_TTY));
+
+ /* Done here to ensure nothing odd happens when a timeout occurs */
+ XcheckN(s->xs, xp, LINE);
+ *xp = '\0';
+ s->start = s->str = xp;
+
+ if (have_tty && ksh_tmout) {
+ ksh_tmout_state = TMOUT_READING;
+ alarm(ksh_tmout);
+ }
+ if (interactive)
+ change_winsz();
+#ifndef MKSH_NO_CMDLINE_EDITING
+ if (have_tty && (
+#if !MKSH_S_NOVI
+ Flag(FVI) ||
+#endif
+ Flag(FEMACS) || Flag(FGMACS))) {
+ int nread;
+
+ nread = x_read(xp);
+ if (nread < 0)
+ /* read error */
+ nread = 0;
+ xp[nread] = '\0';
+ xp += nread;
+ } else
+#endif
+ {
+ if (interactive)
+ pprompt(prompt, 0);
+ else
+ s->line++;
+
+ while (/* CONSTCOND */ 1) {
+ char *p = shf_getse(xp, Xnleft(s->xs, xp), s->u.shf);
+
+ if (!p && shf_error(s->u.shf) &&
+ shf_errno(s->u.shf) == EINTR) {
+ shf_clearerr(s->u.shf);
+ if (trap)
+ runtraps(0);
+ continue;
+ }
+ if (!p || (xp = p, xp[-1] == '\n'))
+ break;
+ /* double buffer size */
+ /* move past NUL so doubling works... */
+ xp++;
+ XcheckN(s->xs, xp, Xlength(s->xs, xp));
+ /* ...and move back again */
+ xp--;
+ }
+ /*
+ * flush any unwanted input so other programs/builtins
+ * can read it. Not very optimal, but less error prone
+ * than flushing else where, dealing with redirections,
+ * etc.
+ * TODO: reduce size of shf buffer (~128?) if SSTDIN
+ */
+ if (s->type == SSTDIN)
+ shf_flush(s->u.shf);
+ }
+ /*
+ * XXX: temporary kludge to restore source after a
+ * trap may have been executed.
+ */
+ source = s;
+ if (have_tty && ksh_tmout) {
+ ksh_tmout_state = TMOUT_EXECUTING;
+ alarm(0);
+ }
+ cp = Xstring(s->xs, xp);
+ rndpush(cp);
+ s->start = s->str = cp;
+ strip_nuls(Xstring(s->xs, xp), Xlength(s->xs, xp));
+ /* Note: if input is all nulls, this is not eof */
+ if (Xlength(s->xs, xp) == 0) {
+ /* EOF */
+ if (s->type == SFILE)
+ shf_fdclose(s->u.shf);
+ s->str = NULL;
+ } else if (interactive && *s->str &&
+ (cur_prompt != PS1 || !ctype(*s->str, C_IFS | C_IFSWS))) {
+ histsave(&s->line, s->str, true, true);
+#if !defined(MKSH_SMALL) && HAVE_PERSISTENT_HISTORY
+ } else if (interactive && cur_prompt == PS1) {
+ cp = Xstring(s->xs, xp);
+ while (*cp && ctype(*cp, C_IFSWS))
+ ++cp;
+ if (!*cp)
+ histsync();
+#endif
+ }
+ if (interactive)
+ set_prompt(PS2, NULL);
+}
+
+void
+set_prompt(int to, Source *s)
+{
+ cur_prompt = to;
+
+ switch (to) {
+ /* command */
+ case PS1:
+ /*
+ * Substitute ! and !! here, before substitutions are done
+ * so ! in expanded variables are not expanded.
+ * NOTE: this is not what AT&T ksh does (it does it after
+ * substitutions, POSIX doesn't say which is to be done.
+ */
+ {
+ struct shf *shf;
+ char * volatile ps1;
+ Area *saved_atemp;
+
+ ps1 = str_val(global("PS1"));
+ shf = shf_sopen(NULL, strlen(ps1) * 2,
+ SHF_WR | SHF_DYNAMIC, NULL);
+ while (*ps1)
+ if (*ps1 != '!' || *++ps1 == '!')
+ shf_putchar(*ps1++, shf);
+ else
+ shf_fprintf(shf, "%d",
+ s ? s->line + 1 : 0);
+ ps1 = shf_sclose(shf);
+ saved_atemp = ATEMP;
+ newenv(E_ERRH);
+ if (kshsetjmp(e->jbuf)) {
+ prompt = safe_prompt;
+ /*
+ * Don't print an error - assume it has already
+ * been printed. Reason is we may have forked
+ * to run a command and the child may be
+ * unwinding its stack through this code as it
+ * exits.
+ */
+ } else {
+ char *cp = substitute(ps1, 0);
+ strdupx(prompt, cp, saved_atemp);
+ }
+ quitenv(NULL);
+ }
+ break;
+ /* command continuation */
+ case PS2:
+ prompt = str_val(global("PS2"));
+ break;
+ }
+}
+
+int
+pprompt(const char *cp, int ntruncate)
+{
+ char delimiter = 0;
+ bool doprint = (ntruncate != -1);
+ bool indelimit = false;
+ int columns = 0, lines = 0;
+
+ /*
+ * Undocumented AT&T ksh feature:
+ * If the second char in the prompt string is \r then the first
+ * char is taken to be a non-printing delimiter and any chars
+ * between two instances of the delimiter are not considered to
+ * be part of the prompt length
+ */
+ if (*cp && cp[1] == '\r') {
+ delimiter = *cp;
+ cp += 2;
+ }
+ for (; *cp; cp++) {
+ if (indelimit && *cp != delimiter)
+ ;
+ else if (*cp == '\n' || *cp == '\r') {
+ lines += columns / x_cols + ((*cp == '\n') ? 1 : 0);
+ columns = 0;
+ } else if (*cp == '\t') {
+ columns = (columns | 7) + 1;
+ } else if (*cp == '\b') {
+ if (columns > 0)
+ columns--;
+ } else if (*cp == delimiter)
+ indelimit = !indelimit;
+ else if (UTFMODE && ((unsigned char)*cp > 0x7F)) {
+ const char *cp2;
+ columns += utf_widthadj(cp, &cp2);
+ if (doprint && (indelimit ||
+ (ntruncate < (x_cols * lines + columns))))
+ shf_write(cp, cp2 - cp, shl_out);
+ cp = cp2 - /* loop increment */ 1;
+ continue;
+ } else
+ columns++;
+ if (doprint && (*cp != delimiter) &&
+ (indelimit || (ntruncate < (x_cols * lines + columns))))
+ shf_putc(*cp, shl_out);
+ }
+ if (doprint)
+ shf_flush(shl_out);
+ return (x_cols * lines + columns);
+}
+
+/*
+ * Read the variable part of a ${...} expression (i.e. up to but not
+ * including the :[-+?=#%] or close-brace).
+ */
+static char *
+get_brace_var(XString *wsp, char *wp)
+{
+ char c;
+ enum parse_state {
+ PS_INITIAL, PS_SAW_HASH, PS_IDENT,
+ PS_NUMBER, PS_VAR1
+ } state = PS_INITIAL;
+
+ while (/* CONSTCOND */ 1) {
+ c = getsc();
+ /* State machine to figure out where the variable part ends. */
+ switch (state) {
+ case PS_INITIAL:
+ if (c == '#' || c == '!' || c == '%') {
+ state = PS_SAW_HASH;
+ break;
+ }
+ /* FALLTHROUGH */
+ case PS_SAW_HASH:
+ if (ksh_isalphx(c))
+ state = PS_IDENT;
+ else if (ksh_isdigit(c))
+ state = PS_NUMBER;
+ else if (c == '#') {
+ if (state == PS_SAW_HASH) {
+ char c2;
+
+ c2 = getsc();
+ ungetsc(c2);
+ if (c2 != /*{*/ '}') {
+ ungetsc(c);
+ goto out;
+ }
+ }
+ state = PS_VAR1;
+ } else if (ctype(c, C_VAR1))
+ state = PS_VAR1;
+ else
+ goto out;
+ break;
+ case PS_IDENT:
+ if (!ksh_isalnux(c)) {
+ if (c == '[') {
+ char *tmp, *p;
+
+ if (!arraysub(&tmp))
+ yyerror("missing ]\n");
+ *wp++ = c;
+ for (p = tmp; *p; ) {
+ Xcheck(*wsp, wp);
+ *wp++ = *p++;
+ }
+ afree(tmp, ATEMP);
+ /* the ] */
+ c = getsc();
+ }
+ goto out;
+ }
+ break;
+ case PS_NUMBER:
+ if (!ksh_isdigit(c))
+ goto out;
+ break;
+ case PS_VAR1:
+ goto out;
+ }
+ Xcheck(*wsp, wp);
+ *wp++ = c;
+ }
+ out:
+ /* end of variable part */
+ *wp++ = '\0';
+ ungetsc(c);
+ return (wp);
+}
+
+/*
+ * Save an array subscript - returns true if matching bracket found, false
+ * if eof or newline was found.
+ * (Returned string double null terminated)
+ */
+static bool
+arraysub(char **strp)
+{
+ XString ws;
+ char *wp, c;
+ /* we are just past the initial [ */
+ unsigned int depth = 1;
+
+ Xinit(ws, wp, 32, ATEMP);
+
+ do {
+ c = getsc();
+ Xcheck(ws, wp);
+ *wp++ = c;
+ if (c == '[')
+ depth++;
+ else if (c == ']')
+ depth--;
+ } while (depth > 0 && c && c != '\n');
+
+ *wp++ = '\0';
+ *strp = Xclose(ws, wp);
+
+ return (tobool(depth == 0));
+}
+
+/* Unget a char: handles case when we are already at the start of the buffer */
+static void
+ungetsc(int c)
+{
+ struct sretrace_info *rp = retrace_info;
+
+ if (backslash_skip)
+ backslash_skip--;
+ /* Don't unget EOF... */
+ if (source->str == null && c == '\0')
+ return;
+ while (rp) {
+ if (Xlength(rp->xs, rp->xp))
+ rp->xp--;
+ rp = rp->next;
+ }
+ ungetsc_i(c);
+}
+static void
+ungetsc_i(int c)
+{
+ if (source->str > source->start)
+ source->str--;
+ else {
+ Source *s;
+
+ s = pushs(SREREAD, source->areap);
+ s->ugbuf[0] = c; s->ugbuf[1] = '\0';
+ s->start = s->str = s->ugbuf;
+ s->next = source;
+ source = s;
+ }
+}
+
+
+/* Called to get a char that isn't a \newline sequence. */
+static int
+getsc_bn(void)
+{
+ int c, c2;
+
+ if (ignore_backslash_newline)
+ return (o_getsc_u());
+
+ if (backslash_skip == 1) {
+ backslash_skip = 2;
+ return (o_getsc_u());
+ }
+
+ backslash_skip = 0;
+
+ while (/* CONSTCOND */ 1) {
+ c = o_getsc_u();
+ if (c == '\\') {
+ if ((c2 = o_getsc_u()) == '\n')
+ /* ignore the \newline; get the next char... */
+ continue;
+ ungetsc_i(c2);
+ backslash_skip = 1;
+ }
+ return (c);
+ }
+}
+
+void
+yyskiputf8bom(void)
+{
+ int c;
+
+ if ((unsigned char)(c = o_getsc_u()) != 0xEF) {
+ ungetsc_i(c);
+ return;
+ }
+ if ((unsigned char)(c = o_getsc_u()) != 0xBB) {
+ ungetsc_i(c);
+ ungetsc_i(0xEF);
+ return;
+ }
+ if ((unsigned char)(c = o_getsc_u()) != 0xBF) {
+ ungetsc_i(c);
+ ungetsc_i(0xBB);
+ ungetsc_i(0xEF);
+ return;
+ }
+ UTFMODE |= 8;
+}
+
+static Lex_state *
+push_state_i(State_info *si, Lex_state *old_end)
+{
+ Lex_state *news = alloc2(STATE_BSIZE, sizeof(Lex_state), ATEMP);
+
+ news[0].ls_base = old_end;
+ si->base = &news[0];
+ si->end = &news[STATE_BSIZE];
+ return (&news[1]);
+}
+
+static Lex_state *
+pop_state_i(State_info *si, Lex_state *old_end)
+{
+ Lex_state *old_base = si->base;
+
+ si->base = old_end->ls_base - STATE_BSIZE;
+ si->end = old_end->ls_base;
+
+ afree(old_base, ATEMP);
+
+ return (si->base + STATE_BSIZE - 1);
+}
+
+static int
+s_get(void)
+{
+ return (getsc());
+}
+
+static void
+s_put(int c)
+{
+ ungetsc(c);
+}
Deleted: vendor/MirOS/mksh/R50/main.c
===================================================================
--- vendor/MirOS/mksh/dist/main.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/main.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1941 +0,0 @@
-/* $OpenBSD: main.c,v 1.52 2013/06/15 17:25:19 millert Exp $ */
-/* $OpenBSD: tty.c,v 1.9 2006/03/14 22:08:01 deraadt Exp $ */
-/* $OpenBSD: io.c,v 1.22 2006/03/17 16:30:13 millert Exp $ */
-/* $OpenBSD: table.c,v 1.15 2012/02/19 07:52:30 otto Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- * 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#define EXTERN
-#include "sh.h"
-
-#if HAVE_LANGINFO_CODESET
-#include <langinfo.h>
-#endif
-#if HAVE_SETLOCALE_CTYPE
-#include <locale.h>
-#endif
-
-__RCSID("$MirOS: src/bin/mksh/main.c,v 1.269 2013/07/25 18:07:46 tg Exp $");
-
-extern char **environ;
-
-#ifndef MKSHRC_PATH
-#define MKSHRC_PATH "~/.mkshrc"
-#endif
-
-#ifndef MKSH_DEFAULT_TMPDIR
-#define MKSH_DEFAULT_TMPDIR "/tmp"
-#endif
-
-static uint8_t isuc(const char *);
-static int main_init(int, const char *[], Source **, struct block **);
-uint32_t chvt_rndsetup(const void *, size_t);
-void chvt_reinit(void);
-static void reclaim(void);
-static void remove_temps(struct temp *);
-static mksh_uari_t rndsetup(void);
-#ifdef SIGWINCH
-static void x_sigwinch(int);
-#endif
-
-static const char initifs[] = "IFS= \t\n";
-
-static const char initsubs[] =
- "${PS2=> } ${PS3=#? } ${PS4=+ } ${SECONDS=0} ${TMOUT=0} ${EPOCHREALTIME=}";
-
-static const char *initcoms[] = {
- Ttypeset, "-r", initvsn, NULL,
- Ttypeset, "-x", "HOME", "PATH", "RANDOM", "SHELL", NULL,
- Ttypeset, "-i10", "COLUMNS", "LINES", "SECONDS", "TMOUT", NULL,
- Talias,
- "integer=typeset -i",
- Tlocal_typeset,
- /* not "alias -t --": hash -r needs to work */
- "hash=alias -t",
- "type=whence -v",
-#if !defined(ANDROID) && !defined(MKSH_UNEMPLOYED)
- /* not in Android for political reasons */
- /* not in ARGE mksh due to no job control */
- "stop=kill -STOP",
- "suspend=kill -STOP $$",
-#endif
- "autoload=typeset -fu",
- "functions=typeset -f",
- "history=fc -l",
- "nameref=typeset -n",
- "nohup=nohup ",
- Tr_fc_e_dash,
- "source=PATH=$PATH:. command .",
- "login=exec login",
- NULL,
- /* this is what AT&T ksh seems to track, with the addition of emacs */
- Talias, "-tU",
- "cat", "cc", "chmod", "cp", "date", "ed", "emacs", "grep", "ls",
- "make", "mv", "pr", "rm", "sed", "sh", "vi", "who", NULL,
- NULL
-};
-
-static const char *restr_com[] = {
- Ttypeset, "-r", "PATH", "ENV", "SHELL", NULL
-};
-
-static bool initio_done;
-
-/* top-level parsing and execution environment */
-static struct env env;
-struct env *e = &env;
-
-static mksh_uari_t
-rndsetup(void)
-{
- register uint32_t h;
- struct {
- ALLOC_ITEM alloc_INT;
- void *dataptr, *stkptr, *mallocptr;
-#if defined(__GLIBC__) && (__GLIBC__ >= 2)
- sigjmp_buf jbuf;
-#endif
- struct timeval tv;
- } *bufptr;
- char *cp;
-
- cp = alloc(sizeof(*bufptr) - ALLOC_SIZE, APERM);
-#ifdef DEBUG
- /* clear the allocated space, for valgrind */
- memset(cp, 0, sizeof(*bufptr) - ALLOC_SIZE);
-#endif
- /* undo what alloc() did to the malloc result address */
- bufptr = (void *)(cp - ALLOC_SIZE);
- /* PIE or something similar provides us with deltas here */
- bufptr->dataptr = &rndsetupstate;
- /* ASLR in at least Windows, Linux, some BSDs */
- bufptr->stkptr = &bufptr;
- /* randomised malloc in BSD (and possibly others) */
- bufptr->mallocptr = bufptr;
-#if defined(__GLIBC__) && (__GLIBC__ >= 2)
- /* glibc pointer guard */
- sigsetjmp(bufptr->jbuf, 1);
-#endif
- /* introduce variation (and yes, second arg MBZ for portability) */
- mksh_TIME(bufptr->tv);
-
- h = chvt_rndsetup(bufptr, sizeof(*bufptr));
-
- afree(cp, APERM);
- return ((mksh_uari_t)h);
-}
-
-uint32_t
-chvt_rndsetup(const void *bp, size_t sz)
-{
- register uint32_t h;
-
- NZATInit(h);
- /* variation through pid, ppid, and the works */
- NZATUpdateMem(h, &rndsetupstate, sizeof(rndsetupstate));
- /* some variation, some possibly entropy, depending on OE */
- NZATUpdateMem(h, bp, sz);
- NZAATFinish(h);
-
- return (h);
-}
-
-void
-chvt_reinit(void)
-{
- kshpid = procpid = getpid();
- ksheuid = geteuid();
- kshpgrp = getpgrp();
- kshppid = getppid();
-}
-
-static const char *empty_argv[] = {
- "mksh", NULL
-};
-
-static uint8_t
-isuc(const char *cx) {
- char *cp, *x;
- uint8_t rv = 0;
-
- if (!cx || !*cx)
- return (0);
-
- /* uppercase a string duplicate */
- strdupx(x, cx, ATEMP);
- cp = x;
- while ((*cp = ksh_toupper(*cp)))
- ++cp;
-
- /* check for UTF-8 */
- if (strstr(x, "UTF-8") || strstr(x, "UTF8"))
- rv = 1;
-
- /* free copy and out */
- afree(x, ATEMP);
- return (rv);
-}
-
-static int
-main_init(int argc, const char *argv[], Source **sp, struct block **lp)
-{
- int argi, i;
- Source *s = NULL;
- struct block *l;
- unsigned char restricted, errexit, utf_flag;
- char *cp;
- const char *ccp, **wp;
- struct tbl *vp;
- struct stat s_stdin;
-#if !defined(_PATH_DEFPATH) && defined(_CS_PATH)
- ssize_t k;
-#endif
-
- /* do things like getpgrp() et al. */
- chvt_reinit();
-
- /* make sure argv[] is sane */
- if (!*argv) {
- argv = empty_argv;
- argc = 1;
- }
- kshname = argv[0];
-
- /* initialise permanent Area */
- ainit(&aperm);
-
- /* set up base environment */
- env.type = E_NONE;
- ainit(&env.area);
- /* set up global l->vars and l->funs */
- newblock();
-
- /* Do this first so output routines (eg, errorf, shellf) can work */
- initio();
-
- /* determine the basename (without '-' or path) of the executable */
- ccp = kshname;
- goto begin_parse_kshname;
- while ((i = ccp[argi++])) {
- if (i == '/') {
- ccp += argi;
- begin_parse_kshname:
- argi = 0;
- if (*ccp == '-')
- ++ccp;
- }
- }
- if (!*ccp)
- ccp = empty_argv[0];
-
- /* define built-in commands and see if we were called as one */
- ktinit(APERM, &builtins,
- /* currently up to 51 builtins: 75% of 128 = 2^7 */
- 7);
- for (i = 0; mkshbuiltins[i].name != NULL; i++)
- if (!strcmp(ccp, builtin(mkshbuiltins[i].name,
- mkshbuiltins[i].func)))
- Flag(FAS_BUILTIN) = 1;
-
- if (!Flag(FAS_BUILTIN)) {
- /* check for -T option early */
- argi = parse_args(argv, OF_FIRSTTIME, NULL);
- if (argi < 0)
- return (1);
-
-#if defined(MKSH_BINSHPOSIX) || defined(MKSH_BINSHREDUCED)
- /* are we called as -sh or /bin/sh or so? */
- if (!strcmp(ccp, "sh")) {
- /* either also turns off braceexpand */
-#ifdef MKSH_BINSHPOSIX
- /* enable better POSIX conformance */
- change_flag(FPOSIX, OF_FIRSTTIME, true);
-#endif
-#ifdef MKSH_BINSHREDUCED
- /* enable kludge/compat mode */
- change_flag(FSH, OF_FIRSTTIME, true);
-#endif
- }
-#endif
- }
-
- initvar();
-
- initctypes();
-
- inittraps();
-
- coproc_init();
-
- /* set up variable and command dictionaries */
- ktinit(APERM, &taliases, 0);
- ktinit(APERM, &aliases, 0);
-#ifndef MKSH_NOPWNAM
- ktinit(APERM, &homedirs, 0);
-#endif
-
- /* define shell keywords */
- initkeywords();
-
- init_histvec();
-
- /* initialise tty size before importing environment */
- change_winsz();
-
-#ifdef _PATH_DEFPATH
- def_path = _PATH_DEFPATH;
-#else
-#ifdef _CS_PATH
- if ((k = confstr(_CS_PATH, NULL, 0)) > 0 &&
- confstr(_CS_PATH, cp = alloc(k + 1, APERM), k + 1) == k + 1)
- def_path = cp;
- else
-#endif
- /*
- * this is uniform across all OSes unless it
- * breaks somewhere; don't try to optimise,
- * e.g. add stuff for Interix or remove /usr
- * for HURD, because e.g. Debian GNU/HURD is
- * "keeping a regular /usr"; this is supposed
- * to be a sane 'basic' default PATH
- */
- def_path = "/bin:/usr/bin:/sbin:/usr/sbin";
-#endif
-
- /*
- * Set PATH to def_path (will set the path global variable).
- * (import of environment below will probably change this setting).
- */
- vp = global("PATH");
- /* setstr can't fail here */
- setstr(vp, def_path, KSH_RETURN_ERROR);
-
- /*
- * Turn on nohup by default for now - will change to off
- * by default once people are aware of its existence
- * (AT&T ksh does not have a nohup option - it always sends
- * the hup).
- */
- Flag(FNOHUP) = 1;
-
- /*
- * Turn on brace expansion by default. AT&T kshs that have
- * alternation always have it on.
- */
- Flag(FBRACEEXPAND) = 1;
-
- /*
- * Turn on "set -x" inheritance by default.
- */
- Flag(FXTRACEREC) = 1;
-
-#ifndef MKSH_NO_CMDLINE_EDITING
- /*
- * Set edit mode to emacs by default, may be overridden
- * by the environment or the user. Also, we want tab completion
- * on in vi by default.
- */
- change_flag(FEMACS, OF_SPECIAL, true);
-#if !MKSH_S_NOVI
- Flag(FVITABCOMPLETE) = 1;
-#endif
-#endif
-
- /* import environment */
- if (environ != NULL)
- for (wp = (const char **)environ; *wp != NULL; wp++)
- typeset(*wp, IMPORT | EXPORT, 0, 0, 0);
-
- /* for security */
- typeset(initifs, 0, 0, 0, 0);
-
- /* assign default shell variable values */
- substitute(initsubs, 0);
-
- /* Figure out the current working directory and set $PWD */
- vp = global("PWD");
- cp = str_val(vp);
- /* Try to use existing $PWD if it is valid */
- set_current_wd((cp[0] == '/' && test_eval(NULL, TO_FILEQ, cp, ".",
- true)) ? cp : NULL);
- if (current_wd[0])
- simplify_path(current_wd);
- /* Only set pwd if we know where we are or if it had a bogus value */
- if (current_wd[0] || *cp)
- /* setstr can't fail here */
- setstr(vp, current_wd, KSH_RETURN_ERROR);
-
- for (wp = initcoms; *wp != NULL; wp++) {
- shcomexec(wp);
- while (*wp != NULL)
- wp++;
- }
- setint_n(global("OPTIND"), 1, 10);
-
- kshuid = getuid();
- kshgid = getgid();
- kshegid = getegid();
-
- safe_prompt = ksheuid ? "$ " : "# ";
- vp = global("PS1");
- /* Set PS1 if unset or we are root and prompt doesn't contain a # */
- if (!(vp->flag & ISSET) ||
- (!ksheuid && !strchr(str_val(vp), '#')))
- /* setstr can't fail here */
- setstr(vp, safe_prompt, KSH_RETURN_ERROR);
- setint_n((vp = global("BASHPID")), 0, 10);
- vp->flag |= INT_U;
- setint_n((vp = global("PGRP")), (mksh_uari_t)kshpgrp, 10);
- vp->flag |= INT_U;
- setint_n((vp = global("PPID")), (mksh_uari_t)kshppid, 10);
- vp->flag |= INT_U;
- setint_n((vp = global("USER_ID")), (mksh_uari_t)ksheuid, 10);
- vp->flag |= INT_U;
- setint_n((vp = global("KSHUID")), (mksh_uari_t)kshuid, 10);
- vp->flag |= INT_U;
- setint_n((vp = global("KSHEGID")), (mksh_uari_t)kshegid, 10);
- vp->flag |= INT_U;
- setint_n((vp = global("KSHGID")), (mksh_uari_t)kshgid, 10);
- vp->flag |= INT_U;
- setint_n((vp = global("RANDOM")), rndsetup(), 10);
- vp->flag |= INT_U;
- setint_n((vp_pipest = global("PIPESTATUS")), 0, 10);
-
- /* Set this before parsing arguments */
- Flag(FPRIVILEGED) = kshuid != ksheuid || kshgid != kshegid;
-
- /* this to note if monitor is set on command line (see below) */
-#ifndef MKSH_UNEMPLOYED
- Flag(FMONITOR) = 127;
-#endif
- /* this to note if utf-8 mode is set on command line (see below) */
- UTFMODE = 2;
-
- if (!Flag(FAS_BUILTIN)) {
- argi = parse_args(argv, OF_CMDLINE, NULL);
- if (argi < 0)
- return (1);
- }
-
-#if defined(DEBUG) && !defined(MKSH_LEGACY_MODE)
- /* test wraparound of arithmetic types */
- {
- volatile long xl;
- volatile unsigned long xul;
- volatile int xi;
- volatile unsigned int xui;
- volatile mksh_ari_t xa;
- volatile mksh_uari_t xua, xua2;
- volatile uint8_t xc;
-
- xa = 2147483647;
- xua = 2147483647;
- ++xa;
- ++xua;
- xua2 = xa;
- xl = xa;
- xul = xua;
- xa = 0;
- xua = 0;
- --xa;
- --xua;
- xi = xa;
- xui = xua;
- xa = -1;
- xua = xa;
- ++xa;
- ++xua;
- xc = 0;
- --xc;
- if ((xua2 != 2147483648UL) ||
- (xl != (-2147483647L-1)) || (xul != 2147483648UL) ||
- (xi != -1) || (xui != 4294967295U) ||
- (xa != 0) || (xua != 0) || (xc != 255))
- errorf("integer wraparound test failed");
- }
-#endif
-
- /* process this later only, default to off (hysterical raisins) */
- utf_flag = UTFMODE;
- UTFMODE = 0;
-
- if (Flag(FAS_BUILTIN)) {
- /* auto-detect from environment variables, always */
- utf_flag = 3;
- } else if (Flag(FCOMMAND)) {
- s = pushs(SSTRINGCMDLINE, ATEMP);
- if (!(s->start = s->str = argv[argi++]))
- errorf("%s %s", "-c", "requires an argument");
-#if !defined(MKSH_SMALL)
- while (*s->str) {
- if (*s->str != ' ' && ctype(*s->str, C_QUOTE))
- break;
- s->str++;
- }
- if (!*s->str)
- s->flags |= SF_MAYEXEC;
- s->str = s->start;
-#endif
-#ifdef MKSH_MIDNIGHTBSD01ASH_COMPAT
- /* compatibility to MidnightBSD 0.1 /bin/sh (kludge) */
- if (Flag(FSH) && argv[argi] && !strcmp(argv[argi], "--"))
- ++argi;
-#endif
- if (argv[argi])
- kshname = argv[argi++];
- } else if (argi < argc && !Flag(FSTDIN)) {
- s = pushs(SFILE, ATEMP);
- s->file = argv[argi++];
- s->u.shf = shf_open(s->file, O_RDONLY, 0,
- SHF_MAPHI | SHF_CLEXEC);
- if (s->u.shf == NULL) {
- shl_stdout_ok = false;
- warningf(true, "%s: %s", s->file, cstrerror(errno));
- /* mandated by SUSv4 */
- exstat = 127;
- unwind(LERROR);
- }
- kshname = s->file;
- } else {
- Flag(FSTDIN) = 1;
- s = pushs(SSTDIN, ATEMP);
- s->file = "<stdin>";
- s->u.shf = shf_fdopen(0, SHF_RD | can_seek(0),
- NULL);
- if (isatty(0) && isatty(2)) {
- Flag(FTALKING) = Flag(FTALKING_I) = 1;
- /* The following only if isatty(0) */
- s->flags |= SF_TTY;
- s->u.shf->flags |= SHF_INTERRUPT;
- s->file = NULL;
- }
- }
-
- /* this bizarreness is mandated by POSIX */
- if (fstat(0, &s_stdin) >= 0 && S_ISCHR(s_stdin.st_mode) &&
- Flag(FTALKING))
- reset_nonblock(0);
-
- /* initialise job control */
- j_init();
- /* do this after j_init() which calls tty_init_state() */
- if (Flag(FTALKING)) {
- if (utf_flag == 2) {
-#ifndef MKSH_ASSUME_UTF8
- /* auto-detect from locale or environment */
- utf_flag = 4;
-#elif MKSH_ASSUME_UTF8
- utf_flag = 1;
-#else
- /* always disable UTF-8 (for interactive) */
- utf_flag = 0;
-#endif
- }
-#ifndef MKSH_NO_CMDLINE_EDITING
- x_init();
-#endif
- }
-
-#ifdef SIGWINCH
- sigtraps[SIGWINCH].flags |= TF_SHELL_USES;
- setsig(&sigtraps[SIGWINCH], x_sigwinch,
- SS_RESTORE_ORIG|SS_FORCE|SS_SHTRAP);
-#endif
-
- l = e->loc;
- if (Flag(FAS_BUILTIN)) {
- l->argc = argc;
- l->argv = argv;
- l->argv[0] = ccp;
- } else {
- l->argc = argc - argi;
- /*
- * allocate a new array because otherwise, when we modify
- * it in-place, ps(1) output changes; the meaning of argc
- * here is slightly different as it excludes kshname, and
- * we add a trailing NULL sentinel as well
- */
- l->argv = alloc2(l->argc + 2, sizeof(void *), APERM);
- l->argv[0] = kshname;
- memcpy(&l->argv[1], &argv[argi], l->argc * sizeof(void *));
- l->argv[l->argc + 1] = NULL;
- getopts_reset(1);
- }
-
- /* divine the initial state of the utf8-mode Flag */
- ccp = null;
- switch (utf_flag) {
-
- /* auto-detect from locale or environment */
- case 4:
-#if HAVE_SETLOCALE_CTYPE
- ccp = setlocale(LC_CTYPE, "");
-#if HAVE_LANGINFO_CODESET
- if (!isuc(ccp))
- ccp = nl_langinfo(CODESET);
-#endif
- if (!isuc(ccp))
- ccp = null;
- /* FALLTHROUGH */
-#endif
-
- /* auto-detect from environment */
- case 3:
- /* these were imported from environ earlier */
- if (ccp == null)
- ccp = str_val(global("LC_ALL"));
- if (ccp == null)
- ccp = str_val(global("LC_CTYPE"));
- if (ccp == null)
- ccp = str_val(global("LANG"));
- UTFMODE = isuc(ccp);
- break;
-
- /* not set on command line, not FTALKING */
- case 2:
- /* unknown values */
- default:
- utf_flag = 0;
- /* FALLTHROUGH */
-
- /* known values */
- case 1:
- case 0:
- UTFMODE = utf_flag;
- break;
- }
-
- /* Disable during .profile/ENV reading */
- restricted = Flag(FRESTRICTED);
- Flag(FRESTRICTED) = 0;
- errexit = Flag(FERREXIT);
- Flag(FERREXIT) = 0;
-
- /*
- * Do this before profile/$ENV so that if it causes problems in them,
- * user will know why things broke.
- */
- if (!current_wd[0] && Flag(FTALKING))
- warningf(false, "can't determine current directory");
-
- if (Flag(FLOGIN)) {
- include(MKSH_SYSTEM_PROFILE, 0, NULL, true);
- if (!Flag(FPRIVILEGED))
- include(substitute("$HOME/.profile", 0), 0,
- NULL, true);
- }
- if (Flag(FPRIVILEGED))
- include(MKSH_SUID_PROFILE, 0, NULL, true);
- else if (Flag(FTALKING)) {
- char *env_file;
-
- /* include $ENV */
- env_file = substitute(substitute("${ENV:-" MKSHRC_PATH "}", 0),
- DOTILDE);
- if (*env_file != '\0')
- include(env_file, 0, NULL, true);
- }
-
- if (restricted) {
- shcomexec(restr_com);
- /* After typeset command... */
- Flag(FRESTRICTED) = 1;
- }
- Flag(FERREXIT) = errexit;
-
- if (Flag(FTALKING) && s)
- hist_init(s);
- else
- /* set after ENV */
- Flag(FTRACKALL) = 1;
-
- alarm_init();
-
- *sp = s;
- *lp = l;
- return (0);
-}
-
-/* this indirection barrier reduces stack usage during normal operation */
-
-int
-main(int argc, const char *argv[])
-{
- int rv;
- Source *s;
- struct block *l;
-
- if ((rv = main_init(argc, argv, &s, &l)) == 0) {
- if (Flag(FAS_BUILTIN)) {
- rv = shcomexec(l->argv);
- } else {
- shell(s, true);
- /* NOTREACHED */
- }
- }
- return (rv);
-}
-
-int
-include(const char *name, int argc, const char **argv, bool intr_ok)
-{
- Source *volatile s = NULL;
- struct shf *shf;
- const char **volatile old_argv;
- volatile int old_argc;
- int i;
-
- shf = shf_open(name, O_RDONLY, 0, SHF_MAPHI | SHF_CLEXEC);
- if (shf == NULL)
- return (-1);
-
- if (argv) {
- old_argv = e->loc->argv;
- old_argc = e->loc->argc;
- } else {
- old_argv = NULL;
- old_argc = 0;
- }
- newenv(E_INCL);
- if ((i = kshsetjmp(e->jbuf))) {
- quitenv(s ? s->u.shf : NULL);
- if (old_argv) {
- e->loc->argv = old_argv;
- e->loc->argc = old_argc;
- }
- switch (i) {
- case LRETURN:
- case LERROR:
- /* see below */
- return (exstat & 0xFF);
- case LINTR:
- /*
- * intr_ok is set if we are including .profile or $ENV.
- * If user ^Cs out, we don't want to kill the shell...
- */
- if (intr_ok && ((exstat & 0xFF) - 128) != SIGTERM)
- return (1);
- /* FALLTHROUGH */
- case LEXIT:
- case LLEAVE:
- case LSHELL:
- unwind(i);
- /* NOTREACHED */
- default:
- internal_errorf("%s %d", "include", i);
- /* NOTREACHED */
- }
- }
- if (argv) {
- e->loc->argv = argv;
- e->loc->argc = argc;
- }
- s = pushs(SFILE, ATEMP);
- s->u.shf = shf;
- strdupx(s->file, name, ATEMP);
- i = shell(s, false);
- quitenv(s->u.shf);
- if (old_argv) {
- e->loc->argv = old_argv;
- e->loc->argc = old_argc;
- }
- /* & 0xff to ensure value not -1 */
- return (i & 0xFF);
-}
-
-/* spawn a command into a shell optionally keeping track of the line number */
-int
-command(const char *comm, int line)
-{
- Source *s;
-
- s = pushs(SSTRING, ATEMP);
- s->start = s->str = comm;
- s->line = line;
- return (shell(s, false));
-}
-
-/*
- * run the commands from the input source, returning status.
- */
-int
-shell(Source * volatile s, volatile bool toplevel)
-{
- struct op *t;
- volatile bool wastty = tobool(s->flags & SF_TTY);
- volatile uint8_t attempts = 13;
- volatile bool interactive = Flag(FTALKING) && toplevel;
- volatile bool sfirst = true;
- Source *volatile old_source = source;
- int i;
-
- newenv(E_PARSE);
- if (interactive)
- really_exit = false;
- switch ((i = kshsetjmp(e->jbuf))) {
- case 0:
- break;
- case LINTR:
- /* we get here if SIGINT not caught or ignored */
- case LERROR:
- case LSHELL:
- if (interactive) {
- if (i == LINTR)
- shellf("\n");
- /*
- * Reset any eof that was read as part of a
- * multiline command.
- */
- if (Flag(FIGNOREEOF) && s->type == SEOF && wastty)
- s->type = SSTDIN;
- /*
- * Used by exit command to get back to
- * top level shell. Kind of strange since
- * interactive is set if we are reading from
- * a tty, but to have stopped jobs, one only
- * needs FMONITOR set (not FTALKING/SF_TTY)...
- */
- /* toss any input we have so far */
- yyrecursive_pop(true);
- s->start = s->str = null;
- retrace_info = NULL;
- herep = heres;
- break;
- }
- /* FALLTHROUGH */
- case LEXIT:
- case LLEAVE:
- case LRETURN:
- source = old_source;
- quitenv(NULL);
- /* keep on going */
- unwind(i);
- /* NOTREACHED */
- default:
- source = old_source;
- quitenv(NULL);
- internal_errorf("%s %d", "shell", i);
- /* NOTREACHED */
- }
- while (/* CONSTCOND */ 1) {
- if (trap)
- runtraps(0);
-
- if (s->next == NULL) {
- if (Flag(FVERBOSE))
- s->flags |= SF_ECHO;
- else
- s->flags &= ~SF_ECHO;
- }
- if (interactive) {
- j_notify();
- set_prompt(PS1, s);
- }
- t = compile(s, sfirst);
- sfirst = false;
- if (!t)
- goto source_no_tree;
- if (t->type == TEOF) {
- if (wastty && Flag(FIGNOREEOF) && --attempts > 0) {
- shellf("Use 'exit' to leave mksh\n");
- s->type = SSTDIN;
- } else if (wastty && !really_exit &&
- j_stopped_running()) {
- really_exit = true;
- s->type = SSTDIN;
- } else {
- /*
- * this for POSIX which says EXIT traps
- * shall be taken in the environment
- * immediately after the last command
- * executed.
- */
- if (toplevel)
- unwind(LEXIT);
- break;
- }
- }
-#if !defined(MKSH_SMALL)
- else if ((s->flags & SF_MAYEXEC) && t->type == TCOM)
- t->u.evalflags |= DOTCOMEXEC;
-#endif
- if (!Flag(FNOEXEC) || (s->flags & SF_TTY))
- exstat = execute(t, 0, NULL) & 0xFF;
-
- if (t->type != TEOF && interactive && really_exit)
- really_exit = false;
-
- source_no_tree:
- reclaim();
- }
- quitenv(NULL);
- source = old_source;
- return (exstat & 0xFF);
-}
-
-/* return to closest error handler or shell(), exit if none found */
-/* note: i MUST NOT be 0 */
-void
-unwind(int i)
-{
- /*
- * This is a kludge. We need to restore everything that was
- * changed in the new environment, see cid 1005090337C7A669439
- * and 10050903386452ACBF1, but fail to even save things most of
- * the time. funcs.c:c_eval() changes FERREXIT temporarily to 0,
- * which needs to be restored thus (related to Debian #696823).
- * We did not save the shell flags, so we use a special or'd
- * value here... this is mostly to clean up behind *other*
- * callers of unwind(LERROR) here; exec.c has the regular case.
- */
- if (Flag(FERREXIT) & 0x80) {
- /* GNU bash does not run this trapsig */
- trapsig(ksh_SIGERR);
- Flag(FERREXIT) &= ~0x80;
- }
-
- /* ordering for EXIT vs ERR is a bit odd (this is what AT&T ksh does) */
- if (i == LEXIT || ((i == LERROR || i == LINTR) &&
- sigtraps[ksh_SIGEXIT].trap &&
- (!Flag(FTALKING) || Flag(FERREXIT)))) {
- ++trap_nested;
- runtrap(&sigtraps[ksh_SIGEXIT], trap_nested == 1);
- --trap_nested;
- i = LLEAVE;
- } else if (Flag(FERREXIT) == 1 && (i == LERROR || i == LINTR)) {
- ++trap_nested;
- runtrap(&sigtraps[ksh_SIGERR], trap_nested == 1);
- --trap_nested;
- i = LLEAVE;
- }
-
- while (/* CONSTCOND */ 1) {
- switch (e->type) {
- case E_PARSE:
- case E_FUNC:
- case E_INCL:
- case E_LOOP:
- case E_ERRH:
- kshlongjmp(e->jbuf, i);
- /* NOTREACHED */
- case E_NONE:
- if (i == LINTR)
- e->flags |= EF_FAKE_SIGDIE;
- /* FALLTHROUGH */
- default:
- quitenv(NULL);
- }
- }
-}
-
-void
-newenv(int type)
-{
- struct env *ep;
- char *cp;
-
- /*
- * struct env includes ALLOC_ITEM for alignment constraints
- * so first get the actually used memory, then assign it
- */
- cp = alloc(sizeof(struct env) - ALLOC_SIZE, ATEMP);
- /* undo what alloc() did to the malloc result address */
- ep = (void *)(cp - ALLOC_SIZE);
- /* initialise public members of struct env (not the ALLOC_ITEM) */
- ainit(&ep->area);
- ep->oenv = e;
- ep->loc = e->loc;
- ep->savefd = NULL;
- ep->temps = NULL;
- ep->yyrecursive_statep = NULL;
- ep->type = type;
- ep->flags = 0;
- /* jump buffer is invalid because flags == 0 */
- e = ep;
-}
-
-void
-quitenv(struct shf *shf)
-{
- struct env *ep = e;
- char *cp;
- int fd;
-
- yyrecursive_pop(true);
- while (ep->oenv && ep->oenv->loc != ep->loc)
- popblock();
- if (ep->savefd != NULL) {
- for (fd = 0; fd < NUFILE; fd++)
- /* if ep->savefd[fd] < 0, means fd was closed */
- if (ep->savefd[fd])
- restfd(fd, ep->savefd[fd]);
- if (ep->savefd[2])
- /* Clear any write errors */
- shf_reopen(2, SHF_WR, shl_out);
- }
- /*
- * Bottom of the stack.
- * Either main shell is exiting or cleanup_parents_env() was called.
- */
- if (ep->oenv == NULL) {
-#ifdef DEBUG_LEAKS
- int i;
-#endif
-
- if (ep->type == E_NONE) {
- /* Main shell exiting? */
-#if HAVE_PERSISTENT_HISTORY
- if (Flag(FTALKING))
- hist_finish();
-#endif
- j_exit();
- if (ep->flags & EF_FAKE_SIGDIE) {
- int sig = (exstat & 0xFF) - 128;
-
- /*
- * ham up our death a bit (AT&T ksh
- * only seems to do this for SIGTERM)
- * Don't do it for SIGQUIT, since we'd
- * dump a core..
- */
- if ((sig == SIGINT || sig == SIGTERM) &&
- (kshpgrp == kshpid)) {
- setsig(&sigtraps[sig], SIG_DFL,
- SS_RESTORE_CURR | SS_FORCE);
- kill(0, sig);
- }
- }
- }
- if (shf)
- shf_close(shf);
- reclaim();
-#ifdef DEBUG_LEAKS
-#ifndef MKSH_NO_CMDLINE_EDITING
- x_done();
-#endif
-#ifndef MKSH_NOPROSPECTOFWORK
- /* block at least SIGCHLD during/after afreeall */
- sigprocmask(SIG_BLOCK, &sm_sigchld, NULL);
-#endif
- afreeall(APERM);
- for (fd = 3; fd < NUFILE; fd++)
- if ((i = fcntl(fd, F_GETFD, 0)) != -1 &&
- (i & FD_CLOEXEC))
- close(fd);
- close(2);
- close(1);
- close(0);
-#endif
- exit(exstat & 0xFF);
- }
- if (shf)
- shf_close(shf);
- reclaim();
-
- e = e->oenv;
-
- /* free the struct env - tricky due to the ALLOC_ITEM inside */
- cp = (void *)ep;
- afree(cp + ALLOC_SIZE, ATEMP);
-}
-
-/* Called after a fork to cleanup stuff left over from parents environment */
-void
-cleanup_parents_env(void)
-{
- struct env *ep;
- int fd;
-
- mkssert(e != NULL);
-
- /*
- * Don't clean up temporary files - parent will probably need them.
- * Also, can't easily reclaim memory since variables, etc. could be
- * anywhere.
- */
-
- /* close all file descriptors hiding in savefd */
- for (ep = e; ep; ep = ep->oenv) {
- if (ep->savefd) {
- for (fd = 0; fd < NUFILE; fd++)
- if (ep->savefd[fd] > 0)
- close(ep->savefd[fd]);
- afree(ep->savefd, &ep->area);
- ep->savefd = NULL;
- }
-#ifdef DEBUG_LEAKS
- if (ep->type != E_NONE)
- ep->type = E_GONE;
-#endif
- }
-#ifndef DEBUG_LEAKS
- e->oenv = NULL;
-#endif
-}
-
-/* Called just before an execve cleanup stuff temporary files */
-void
-cleanup_proc_env(void)
-{
- struct env *ep;
-
- for (ep = e; ep; ep = ep->oenv)
- remove_temps(ep->temps);
-}
-
-/* remove temp files and free ATEMP Area */
-static void
-reclaim(void)
-{
- struct block *l;
-
- while ((l = e->loc) && (!e->oenv || e->oenv->loc != l)) {
- e->loc = l->next;
- afreeall(&l->area);
- }
-
- remove_temps(e->temps);
- e->temps = NULL;
- afreeall(&e->area);
-}
-
-static void
-remove_temps(struct temp *tp)
-{
- for (; tp != NULL; tp = tp->next)
- if (tp->pid == procpid)
- unlink(tp->tffn);
-}
-
-/*
- * Initialise tty_fd. Used for tracking the size of the terminal,
- * saving/resetting tty modes upon forground job completion, and
- * for setting up the tty process group. Return values:
- * 0 = got controlling tty
- * 1 = got terminal but no controlling tty
- * 2 = cannot find a terminal
- * 3 = cannot dup fd
- * 4 = cannot make fd close-on-exec
- * An existing tty_fd is cached if no "better" one could be found,
- * i.e. if tty_devtty was already set or the new would not set it.
- */
-int
-tty_init_fd(void)
-{
- int fd, rv, eno = 0;
- bool do_close = false, is_devtty = true;
-
- if (tty_devtty) {
- /* already got a tty which is /dev/tty */
- return (0);
- }
-
-#ifdef _UWIN
- /*XXX imake style */
- if (isatty(3)) {
- /* fd 3 on UWIN _is_ /dev/tty (or our controlling tty) */
- fd = 3;
- goto got_fd;
- }
-#endif
- if ((fd = open("/dev/tty", O_RDWR, 0)) >= 0) {
- do_close = true;
- goto got_fd;
- }
- eno = errno;
-
- if (tty_fd >= 0) {
- /* already got a non-devtty one */
- rv = 1;
- goto out;
- }
- is_devtty = false;
-
- if (isatty((fd = 0)) || isatty((fd = 2)))
- goto got_fd;
- /* cannot find one */
- rv = 2;
- /* assert: do_close == false */
- goto out;
-
- got_fd:
- if ((rv = fcntl(fd, F_DUPFD, FDBASE)) < 0) {
- eno = errno;
- rv = 3;
- goto out;
- }
- if (fcntl(rv, F_SETFD, FD_CLOEXEC) < 0) {
- eno = errno;
- close(rv);
- rv = 4;
- goto out;
- }
- tty_fd = rv;
- tty_devtty = is_devtty;
- rv = eno = 0;
- out:
- if (do_close)
- close(fd);
- errno = eno;
- return (rv);
-}
-
-/* A shell error occurred (eg, syntax error, etc.) */
-
-#define VWARNINGF_ERRORPREFIX 1
-#define VWARNINGF_FILELINE 2
-#define VWARNINGF_BUILTIN 4
-#define VWARNINGF_INTERNAL 8
-
-static void vwarningf(unsigned int, const char *, va_list)
- MKSH_A_FORMAT(__printf__, 2, 0);
-
-static void
-vwarningf(unsigned int flags, const char *fmt, va_list ap)
-{
- if (fmt) {
- if (flags & VWARNINGF_INTERNAL)
- shf_fprintf(shl_out, "internal error: ");
- if (flags & VWARNINGF_ERRORPREFIX)
- error_prefix(tobool(flags & VWARNINGF_FILELINE));
- if ((flags & VWARNINGF_BUILTIN) &&
- /* not set when main() calls parse_args() */
- builtin_argv0 && builtin_argv0 != kshname)
- shf_fprintf(shl_out, "%s: ", builtin_argv0);
- shf_vfprintf(shl_out, fmt, ap);
- shf_putchar('\n', shl_out);
- }
- shf_flush(shl_out);
-}
-
-void
-errorfx(int rc, const char *fmt, ...)
-{
- va_list va;
-
- exstat = rc;
-
- /* debugging: note that stdout not valid */
- shl_stdout_ok = false;
-
- va_start(va, fmt);
- vwarningf(VWARNINGF_ERRORPREFIX | VWARNINGF_FILELINE, fmt, va);
- va_end(va);
- unwind(LERROR);
-}
-
-void
-errorf(const char *fmt, ...)
-{
- va_list va;
-
- exstat = 1;
-
- /* debugging: note that stdout not valid */
- shl_stdout_ok = false;
-
- va_start(va, fmt);
- vwarningf(VWARNINGF_ERRORPREFIX | VWARNINGF_FILELINE, fmt, va);
- va_end(va);
- unwind(LERROR);
-}
-
-/* like errorf(), but no unwind is done */
-void
-warningf(bool fileline, const char *fmt, ...)
-{
- va_list va;
-
- va_start(va, fmt);
- vwarningf(VWARNINGF_ERRORPREFIX | (fileline ? VWARNINGF_FILELINE : 0),
- fmt, va);
- va_end(va);
-}
-
-/*
- * Used by built-in utilities to prefix shell and utility name to message
- * (also unwinds environments for special builtins).
- */
-void
-bi_errorf(const char *fmt, ...)
-{
- va_list va;
-
- /* debugging: note that stdout not valid */
- shl_stdout_ok = false;
-
- exstat = 1;
-
- va_start(va, fmt);
- vwarningf(VWARNINGF_ERRORPREFIX | VWARNINGF_FILELINE |
- VWARNINGF_BUILTIN, fmt, va);
- va_end(va);
-
- /*
- * POSIX special builtins and ksh special builtins cause
- * non-interactive shells to exit.
- * XXX odd use of KEEPASN; also may not want LERROR here
- */
- if (builtin_flag & SPEC_BI) {
- builtin_argv0 = NULL;
- unwind(LERROR);
- }
-}
-
-/* Called when something that shouldn't happen does */
-void
-internal_errorf(const char *fmt, ...)
-{
- va_list va;
-
- va_start(va, fmt);
- vwarningf(VWARNINGF_INTERNAL, fmt, va);
- va_end(va);
- unwind(LERROR);
-}
-
-void
-internal_warningf(const char *fmt, ...)
-{
- va_list va;
-
- va_start(va, fmt);
- vwarningf(VWARNINGF_INTERNAL, fmt, va);
- va_end(va);
-}
-
-/* used by error reporting functions to print "ksh: .kshrc[25]: " */
-void
-error_prefix(bool fileline)
-{
- /* Avoid foo: foo[2]: ... */
- if (!fileline || !source || !source->file ||
- strcmp(source->file, kshname) != 0)
- shf_fprintf(shl_out, "%s: ", kshname + (*kshname == '-'));
- if (fileline && source && source->file != NULL) {
- shf_fprintf(shl_out, "%s[%d]: ", source->file,
- source->errline > 0 ? source->errline : source->line);
- source->errline = 0;
- }
-}
-
-/* printf to shl_out (stderr) with flush */
-void
-shellf(const char *fmt, ...)
-{
- va_list va;
-
- if (!initio_done)
- /* shl_out may not be set up yet... */
- return;
- va_start(va, fmt);
- shf_vfprintf(shl_out, fmt, va);
- va_end(va);
- shf_flush(shl_out);
-}
-
-/* printf to shl_stdout (stdout) */
-void
-shprintf(const char *fmt, ...)
-{
- va_list va;
-
- if (!shl_stdout_ok)
- internal_errorf("shl_stdout not valid");
- va_start(va, fmt);
- shf_vfprintf(shl_stdout, fmt, va);
- va_end(va);
-}
-
-/* test if we can seek backwards fd (returns 0 or SHF_UNBUF) */
-int
-can_seek(int fd)
-{
- struct stat statb;
-
- return (fstat(fd, &statb) == 0 && !S_ISREG(statb.st_mode) ?
- SHF_UNBUF : 0);
-}
-
-#ifdef DF
-int shl_dbg_fd;
-#define NSHF_IOB 4
-#else
-#define NSHF_IOB 3
-#endif
-struct shf shf_iob[NSHF_IOB];
-
-void
-initio(void)
-{
-#ifdef DF
- const char *lfp;
-#endif
-
- /* force buffer allocation */
- shf_fdopen(1, SHF_WR, shl_stdout);
- shf_fdopen(2, SHF_WR, shl_out);
- shf_fdopen(2, SHF_WR, shl_xtrace);
-#ifdef DF
- if ((lfp = getenv("SDMKSH_PATH")) == NULL) {
- if ((lfp = getenv("HOME")) == NULL || *lfp != '/')
- errorf("cannot get home directory");
- lfp = shf_smprintf("%s/mksh-dbg.txt", lfp);
- }
-
- if ((shl_dbg_fd = open(lfp, O_WRONLY | O_APPEND | O_CREAT, 0600)) < 0)
- errorf("cannot open debug output file %s", lfp);
- if (shl_dbg_fd < FDBASE) {
- int nfd;
-
- nfd = fcntl(shl_dbg_fd, F_DUPFD, FDBASE);
- close(shl_dbg_fd);
- if ((shl_dbg_fd = nfd) == -1)
- errorf("cannot dup debug output file");
- }
- fcntl(shl_dbg_fd, F_SETFD, FD_CLOEXEC);
- shf_fdopen(shl_dbg_fd, SHF_WR, shl_dbg);
- DF("=== open ===");
-#endif
- initio_done = true;
-}
-
-/* A dup2() with error checking */
-int
-ksh_dup2(int ofd, int nfd, bool errok)
-{
- int rv;
-
- if (((rv = dup2(ofd, nfd)) < 0) && !errok && (errno != EBADF))
- errorf("too many files open in shell");
-
-#ifdef __ultrix
- /*XXX imake style */
- if (rv >= 0)
- fcntl(nfd, F_SETFD, 0);
-#endif
-
- return (rv);
-}
-
-/*
- * Move fd from user space (0 <= fd < 10) to shell space (fd >= 10),
- * set close-on-exec flag. See FDBASE in sh.h, maybe 24 not 10 here.
- */
-short
-savefd(int fd)
-{
- int nfd = fd;
-
- if (fd < FDBASE && (nfd = fcntl(fd, F_DUPFD, FDBASE)) < 0 &&
- errno == EBADF)
- return (-1);
- if (nfd < 0 || nfd > SHRT_MAX)
- errorf("too many files open in shell");
- fcntl(nfd, F_SETFD, FD_CLOEXEC);
- return ((short)nfd);
-}
-
-void
-restfd(int fd, int ofd)
-{
- if (fd == 2)
- shf_flush(&shf_iob[/* fd */ 2]);
- if (ofd < 0)
- /* original fd closed */
- close(fd);
- else if (fd != ofd) {
- /*XXX: what to do if this dup fails? */
- ksh_dup2(ofd, fd, true);
- close(ofd);
- }
-}
-
-void
-openpipe(int *pv)
-{
- int lpv[2];
-
- if (pipe(lpv) < 0)
- errorf("can't create pipe - try again");
- pv[0] = savefd(lpv[0]);
- if (pv[0] != lpv[0])
- close(lpv[0]);
- pv[1] = savefd(lpv[1]);
- if (pv[1] != lpv[1])
- close(lpv[1]);
-}
-
-void
-closepipe(int *pv)
-{
- close(pv[0]);
- close(pv[1]);
-}
-
-/*
- * Called by iosetup() (deals with 2>&4, etc.), c_read, c_print to turn
- * a string (the X in 2>&X, read -uX, print -uX) into a file descriptor.
- */
-int
-check_fd(const char *name, int mode, const char **emsgp)
-{
- int fd, fl;
-
- if (name[0] == 'p' && !name[1])
- return (coproc_getfd(mode, emsgp));
- for (fd = 0; ksh_isdigit(*name); ++name)
- fd = (fd * 10) + *name - '0';
- if (*name || fd >= FDBASE) {
- if (emsgp)
- *emsgp = "illegal file descriptor name";
- return (-1);
- }
- if ((fl = fcntl(fd, F_GETFL, 0)) < 0) {
- if (emsgp)
- *emsgp = "bad file descriptor";
- return (-1);
- }
- fl &= O_ACCMODE;
- /*
- * X_OK is a kludge to disable this check for dups (x<&1):
- * historical shells never did this check (XXX don't know what
- * POSIX has to say).
- */
- if (!(mode & X_OK) && fl != O_RDWR && (
- ((mode & R_OK) && fl != O_RDONLY) ||
- ((mode & W_OK) && fl != O_WRONLY))) {
- if (emsgp)
- *emsgp = (fl == O_WRONLY) ?
- "fd not open for reading" :
- "fd not open for writing";
- return (-1);
- }
- return (fd);
-}
-
-/* Called once from main */
-void
-coproc_init(void)
-{
- coproc.read = coproc.readw = coproc.write = -1;
- coproc.njobs = 0;
- coproc.id = 0;
-}
-
-/* Called by c_read() when eof is read - close fd if it is the co-process fd */
-void
-coproc_read_close(int fd)
-{
- if (coproc.read >= 0 && fd == coproc.read) {
- coproc_readw_close(fd);
- close(coproc.read);
- coproc.read = -1;
- }
-}
-
-/*
- * Called by c_read() and by iosetup() to close the other side of the
- * read pipe, so reads will actually terminate.
- */
-void
-coproc_readw_close(int fd)
-{
- if (coproc.readw >= 0 && coproc.read >= 0 && fd == coproc.read) {
- close(coproc.readw);
- coproc.readw = -1;
- }
-}
-
-/*
- * Called by c_print when a write to a fd fails with EPIPE and by iosetup
- * when co-process input is dup'd
- */
-void
-coproc_write_close(int fd)
-{
- if (coproc.write >= 0 && fd == coproc.write) {
- close(coproc.write);
- coproc.write = -1;
- }
-}
-
-/*
- * Called to check for existence of/value of the co-process file descriptor.
- * (Used by check_fd() and by c_read/c_print to deal with -p option).
- */
-int
-coproc_getfd(int mode, const char **emsgp)
-{
- int fd = (mode & R_OK) ? coproc.read : coproc.write;
-
- if (fd >= 0)
- return (fd);
- if (emsgp)
- *emsgp = "no coprocess";
- return (-1);
-}
-
-/*
- * called to close file descriptors related to the coprocess (if any)
- * Should be called with SIGCHLD blocked.
- */
-void
-coproc_cleanup(int reuse)
-{
- /* This to allow co-processes to share output pipe */
- if (!reuse || coproc.readw < 0 || coproc.read < 0) {
- if (coproc.read >= 0) {
- close(coproc.read);
- coproc.read = -1;
- }
- if (coproc.readw >= 0) {
- close(coproc.readw);
- coproc.readw = -1;
- }
- }
- if (coproc.write >= 0) {
- close(coproc.write);
- coproc.write = -1;
- }
-}
-
-struct temp *
-maketemp(Area *ap, Temp_type type, struct temp **tlist)
-{
- char *cp;
- size_t len;
- int i, j;
- struct temp *tp;
- const char *dir;
- struct stat sb;
-
- dir = tmpdir ? tmpdir : MKSH_DEFAULT_TMPDIR;
- /* add "/shXXXXXX.tmp" plus NUL */
- len = strlen(dir);
- checkoktoadd(len, offsetof(struct temp, tffn[0]) + 14);
- tp = alloc(offsetof(struct temp, tffn[0]) + 14 + len, ap);
-
- tp->shf = NULL;
- tp->pid = procpid;
- tp->type = type;
-
- if (stat(dir, &sb) || !S_ISDIR(sb.st_mode)) {
- tp->tffn[0] = '\0';
- goto maketemp_out;
- }
-
- cp = (void *)tp;
- cp += offsetof(struct temp, tffn[0]);
- memcpy(cp, dir, len);
- cp += len;
- memcpy(cp, "/shXXXXXX.tmp", 14);
- /* point to the first of six Xes */
- cp += 3;
- /* generate random part of filename */
- len = -1;
- do {
- i = rndget() % 36;
- cp[++len] = i < 26 ? 'a' + i : '0' + i - 26;
- } while (len < 5);
-
- /* cyclically attempt to open a temporary file */
- while ((i = open(tp->tffn, O_CREAT | O_EXCL | O_RDWR, 0600)) < 0) {
- if (errno != EEXIST)
- goto maketemp_out;
- /* count down from z to a then from 9 to 0 */
- while (cp[len] == '0')
- if (!len--)
- goto maketemp_out;
- if (cp[len] == 'a')
- cp[len] = '9';
- else
- --cp[len];
- /* do another cycle */
- }
-
- if (type == TT_FUNSUB) {
- /* map us high and mark as close-on-exec */
- if ((j = savefd(i)) != i) {
- close(i);
- i = j;
- }
-
- /* operation mode for the shf */
- j = SHF_RD;
- } else
- j = SHF_WR;
-
- /* shf_fdopen cannot fail, so no fd leak */
- tp->shf = shf_fdopen(i, j, NULL);
-
- maketemp_out:
- tp->next = *tlist;
- *tlist = tp;
- return (tp);
-}
-
-/*
- * We use a similar collision resolution algorithm as Python 2.5.4
- * but with a slightly tweaked implementation written from scratch.
- */
-
-#define INIT_TBLSHIFT 3 /* initial table shift (2^3 = 8) */
-#define PERTURB_SHIFT 5 /* see Python 2.5.4 Objects/dictobject.c */
-
-static void tgrow(struct table *);
-static int tnamecmp(const void *, const void *);
-
-static void
-tgrow(struct table *tp)
-{
- size_t i, j, osize, mask, perturb;
- struct tbl *tblp, **pp;
- struct tbl **ntblp, **otblp = tp->tbls;
-
- if (tp->tshift > 29)
- internal_errorf("hash table size limit reached");
-
- /* calculate old size, new shift and new size */
- osize = (size_t)1 << (tp->tshift++);
- i = osize << 1;
-
- ntblp = alloc2(i, sizeof(struct tbl *), tp->areap);
- /* multiplication cannot overflow: alloc2 checked that */
- memset(ntblp, 0, i * sizeof(struct tbl *));
-
- /* table can get very full when reaching its size limit */
- tp->nfree = (tp->tshift == 30) ? 0x3FFF0000UL :
- /* but otherwise, only 75% */
- ((i * 3) / 4);
- tp->tbls = ntblp;
- if (otblp == NULL)
- return;
-
- mask = i - 1;
- for (i = 0; i < osize; i++)
- if ((tblp = otblp[i]) != NULL) {
- if ((tblp->flag & DEFINED)) {
- /* search for free hash table slot */
- j = perturb = tblp->ua.hval;
- goto find_first_empty_slot;
- find_next_empty_slot:
- j = (j << 2) + j + perturb + 1;
- perturb >>= PERTURB_SHIFT;
- find_first_empty_slot:
- pp = &ntblp[j & mask];
- if (*pp != NULL)
- goto find_next_empty_slot;
- /* found an empty hash table slot */
- *pp = tblp;
- tp->nfree--;
- } else if (!(tblp->flag & FINUSE)) {
- afree(tblp, tp->areap);
- }
- }
- afree(otblp, tp->areap);
-}
-
-void
-ktinit(Area *ap, struct table *tp, uint8_t initshift)
-{
- tp->areap = ap;
- tp->tbls = NULL;
- tp->tshift = ((initshift > INIT_TBLSHIFT) ?
- initshift : INIT_TBLSHIFT) - 1;
- tgrow(tp);
-}
-
-/* table, name (key) to search for, hash(name), rv pointer to tbl ptr */
-struct tbl *
-ktscan(struct table *tp, const char *name, uint32_t h, struct tbl ***ppp)
-{
- size_t j, perturb, mask;
- struct tbl **pp, *p;
-
- mask = ((size_t)1 << (tp->tshift)) - 1;
- /* search for hash table slot matching name */
- j = perturb = h;
- goto find_first_slot;
- find_next_slot:
- j = (j << 2) + j + perturb + 1;
- perturb >>= PERTURB_SHIFT;
- find_first_slot:
- pp = &tp->tbls[j & mask];
- if ((p = *pp) != NULL && (p->ua.hval != h || !(p->flag & DEFINED) ||
- strcmp(p->name, name)))
- goto find_next_slot;
- /* p == NULL if not found, correct found entry otherwise */
- if (ppp)
- *ppp = pp;
- return (p);
-}
-
-/* table, name (key) to enter, hash(n) */
-struct tbl *
-ktenter(struct table *tp, const char *n, uint32_t h)
-{
- struct tbl **pp, *p;
- size_t len;
-
- Search:
- if ((p = ktscan(tp, n, h, &pp)))
- return (p);
-
- if (tp->nfree == 0) {
- /* too full */
- tgrow(tp);
- goto Search;
- }
-
- /* create new tbl entry */
- len = strlen(n);
- checkoktoadd(len, offsetof(struct tbl, name[0]) + 1);
- p = alloc(offsetof(struct tbl, name[0]) + ++len, tp->areap);
- p->flag = 0;
- p->type = 0;
- p->areap = tp->areap;
- p->ua.hval = h;
- p->u2.field = 0;
- p->u.array = NULL;
- memcpy(p->name, n, len);
-
- /* enter in tp->tbls */
- tp->nfree--;
- *pp = p;
- return (p);
-}
-
-void
-ktwalk(struct tstate *ts, struct table *tp)
-{
- ts->left = (size_t)1 << (tp->tshift);
- ts->next = tp->tbls;
-}
-
-struct tbl *
-ktnext(struct tstate *ts)
-{
- while (--ts->left >= 0) {
- struct tbl *p = *ts->next++;
- if (p != NULL && (p->flag & DEFINED))
- return (p);
- }
- return (NULL);
-}
-
-static int
-tnamecmp(const void *p1, const void *p2)
-{
- const struct tbl *a = *((const struct tbl * const *)p1);
- const struct tbl *b = *((const struct tbl * const *)p2);
-
- return (strcmp(a->name, b->name));
-}
-
-struct tbl **
-ktsort(struct table *tp)
-{
- size_t i;
- struct tbl **p, **sp, **dp;
-
- /*
- * since the table is never entirely full, no need to reserve
- * additional space for the trailing NULL appended below
- */
- i = (size_t)1 << (tp->tshift);
- p = alloc2(i, sizeof(struct tbl *), ATEMP);
- sp = tp->tbls; /* source */
- dp = p; /* dest */
- while (i--)
- if ((*dp = *sp++) != NULL && (((*dp)->flag & DEFINED) ||
- ((*dp)->flag & ARRAY)))
- dp++;
- qsort(p, (i = dp - p), sizeof(struct tbl *), tnamecmp);
- p[i] = NULL;
- return (p);
-}
-
-#ifdef SIGWINCH
-static void
-x_sigwinch(int sig MKSH_A_UNUSED)
-{
- /* this runs inside interrupt context, with errno saved */
-
- got_winch = 1;
-}
-#endif
-
-#ifdef DF
-void
-DF(const char *fmt, ...)
-{
- va_list args;
- struct timeval tv;
- mirtime_mjd mjd;
-
- mksh_lockfd(shl_dbg_fd);
- mksh_TIME(tv);
- timet2mjd(&mjd, tv.tv_sec);
- shf_fprintf(shl_dbg, "[%02u:%02u:%02u (%u) %u.%06u] ",
- (unsigned)mjd.sec / 3600, ((unsigned)mjd.sec / 60) % 60,
- (unsigned)mjd.sec % 60, (unsigned)getpid(),
- (unsigned)tv.tv_sec, (unsigned)tv.tv_usec);
- va_start(args, fmt);
- shf_vfprintf(shl_dbg, fmt, args);
- va_end(args);
- shf_putc('\n', shl_dbg);
- shf_flush(shl_dbg);
- mksh_unlkfd(shl_dbg_fd);
-}
-#endif
-
-void
-x_mkraw(int fd, mksh_ttyst *ocb, bool forread)
-{
- mksh_ttyst cb;
-
- if (ocb)
- mksh_tcget(fd, ocb);
- else
- ocb = &tty_state;
-
- cb = *ocb;
- if (forread) {
- cb.c_lflag &= ~(ICANON) | ECHO;
- } else {
- cb.c_iflag &= ~(INLCR | ICRNL);
- cb.c_lflag &= ~(ISIG | ICANON | ECHO);
- }
-#if defined(VLNEXT) && defined(_POSIX_VDISABLE)
- /* OSF/1 processes lnext when ~icanon */
- cb.c_cc[VLNEXT] = _POSIX_VDISABLE;
-#endif
- /* SunOS 4.1.x & OSF/1 processes discard(flush) when ~icanon */
-#if defined(VDISCARD) && defined(_POSIX_VDISABLE)
- cb.c_cc[VDISCARD] = _POSIX_VDISABLE;
-#endif
- cb.c_cc[VTIME] = 0;
- cb.c_cc[VMIN] = 1;
-
- mksh_tcset(fd, &cb);
-}
Copied: vendor/MirOS/mksh/R50/main.c (from rev 6707, vendor/MirOS/mksh/dist/main.c)
===================================================================
--- vendor/MirOS/mksh/R50/main.c (rev 0)
+++ vendor/MirOS/mksh/R50/main.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1888 @@
+/* $OpenBSD: main.c,v 1.54 2013/11/28 10:33:37 sobrado Exp $ */
+/* $OpenBSD: tty.c,v 1.9 2006/03/14 22:08:01 deraadt Exp $ */
+/* $OpenBSD: io.c,v 1.23 2013/12/17 16:37:06 deraadt Exp $ */
+/* $OpenBSD: table.c,v 1.15 2012/02/19 07:52:30 otto Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#define EXTERN
+#include "sh.h"
+
+#if HAVE_LANGINFO_CODESET
+#include <langinfo.h>
+#endif
+#if HAVE_SETLOCALE_CTYPE
+#include <locale.h>
+#endif
+
+__RCSID("$MirOS: src/bin/mksh/main.c,v 1.280 2014/06/09 12:28:17 tg Exp $");
+
+extern char **environ;
+
+#ifndef MKSHRC_PATH
+#define MKSHRC_PATH "~/.mkshrc"
+#endif
+
+#ifndef MKSH_DEFAULT_TMPDIR
+#define MKSH_DEFAULT_TMPDIR "/tmp"
+#endif
+
+static uint8_t isuc(const char *);
+static int main_init(int, const char *[], Source **, struct block **);
+void chvt_reinit(void);
+static void reclaim(void);
+static void remove_temps(struct temp *);
+static mksh_uari_t rndsetup(void);
+#ifdef SIGWINCH
+static void x_sigwinch(int);
+#endif
+
+static const char initifs[] = "IFS= \t\n";
+
+static const char initsubs[] =
+ "${PS2=> } ${PS3=#? } ${PS4=+ } ${SECONDS=0} ${TMOUT=0} ${EPOCHREALTIME=}";
+
+static const char *initcoms[] = {
+ Ttypeset, "-r", initvsn, NULL,
+ Ttypeset, "-x", "HOME", "PATH", "RANDOM", "SHELL", NULL,
+ Ttypeset, "-i10", "COLUMNS", "LINES", "SECONDS", "TMOUT", NULL,
+ Talias,
+ "integer=typeset -i",
+ Tlocal_typeset,
+ /* not "alias -t --": hash -r needs to work */
+ "hash=alias -t",
+ "type=whence -v",
+#if !defined(ANDROID) && !defined(MKSH_UNEMPLOYED)
+ /* not in Android for political reasons */
+ /* not in ARGE mksh due to no job control */
+ "stop=kill -STOP",
+#endif
+ "autoload=typeset -fu",
+ "functions=typeset -f",
+ "history=fc -l",
+ "nameref=typeset -n",
+ "nohup=nohup ",
+ Tr_fc_e_dash,
+ "source=PATH=$PATH:. command .",
+ "login=exec login",
+ NULL,
+ /* this is what AT&T ksh seems to track, with the addition of emacs */
+ Talias, "-tU",
+ "cat", "cc", "chmod", "cp", "date", "ed", "emacs", "grep", "ls",
+ "make", "mv", "pr", "rm", "sed", "sh", "vi", "who", NULL,
+ NULL
+};
+
+static const char *restr_com[] = {
+ Ttypeset, "-r", "PATH", "ENV", "SHELL", NULL
+};
+
+static bool initio_done;
+
+/* top-level parsing and execution environment */
+static struct env env;
+struct env *e = &env;
+
+static mksh_uari_t
+rndsetup(void)
+{
+ register uint32_t h;
+ struct {
+ ALLOC_ITEM alloc_INT;
+ void *dataptr, *stkptr, *mallocptr;
+#if defined(__GLIBC__) && (__GLIBC__ >= 2)
+ sigjmp_buf jbuf;
+#endif
+ struct timeval tv;
+ } *bufptr;
+ char *cp;
+
+ cp = alloc(sizeof(*bufptr) - ALLOC_SIZE, APERM);
+#ifdef DEBUG
+ /* clear the allocated space, for valgrind */
+ memset(cp, 0, sizeof(*bufptr) - ALLOC_SIZE);
+#endif
+ /* undo what alloc() did to the malloc result address */
+ bufptr = (void *)(cp - ALLOC_SIZE);
+ /* PIE or something similar provides us with deltas here */
+ bufptr->dataptr = &rndsetupstate;
+ /* ASLR in at least Windows, Linux, some BSDs */
+ bufptr->stkptr = &bufptr;
+ /* randomised malloc in BSD (and possibly others) */
+ bufptr->mallocptr = bufptr;
+#if defined(__GLIBC__) && (__GLIBC__ >= 2)
+ /* glibc pointer guard */
+ sigsetjmp(bufptr->jbuf, 1);
+#endif
+ /* introduce variation (and yes, second arg MBZ for portability) */
+ mksh_TIME(bufptr->tv);
+
+ h = chvt_rndsetup(bufptr, sizeof(*bufptr));
+
+ afree(cp, APERM);
+ return ((mksh_uari_t)h);
+}
+
+void
+chvt_reinit(void)
+{
+ kshpid = procpid = getpid();
+ ksheuid = geteuid();
+ kshpgrp = getpgrp();
+ kshppid = getppid();
+}
+
+static const char *empty_argv[] = {
+ "mksh", NULL
+};
+
+static uint8_t
+isuc(const char *cx) {
+ char *cp, *x;
+ uint8_t rv = 0;
+
+ if (!cx || !*cx)
+ return (0);
+
+ /* uppercase a string duplicate */
+ strdupx(x, cx, ATEMP);
+ cp = x;
+ while ((*cp = ksh_toupper(*cp)))
+ ++cp;
+
+ /* check for UTF-8 */
+ if (strstr(x, "UTF-8") || strstr(x, "UTF8"))
+ rv = 1;
+
+ /* free copy and out */
+ afree(x, ATEMP);
+ return (rv);
+}
+
+static int
+main_init(int argc, const char *argv[], Source **sp, struct block **lp)
+{
+ int argi, i;
+ Source *s = NULL;
+ struct block *l;
+ unsigned char restricted, errexit, utf_flag;
+ char *cp;
+ const char *ccp, **wp;
+ struct tbl *vp;
+ struct stat s_stdin;
+#if !defined(_PATH_DEFPATH) && defined(_CS_PATH)
+ ssize_t k;
+#endif
+
+ /* do things like getpgrp() et al. */
+ chvt_reinit();
+
+ /* make sure argv[] is sane */
+ if (!*argv) {
+ argv = empty_argv;
+ argc = 1;
+ }
+ kshname = argv[0];
+
+ /* initialise permanent Area */
+ ainit(&aperm);
+
+ /* set up base environment */
+ env.type = E_NONE;
+ ainit(&env.area);
+ /* set up global l->vars and l->funs */
+ newblock();
+
+ /* Do this first so output routines (eg, errorf, shellf) can work */
+ initio();
+
+ /* determine the basename (without '-' or path) of the executable */
+ ccp = kshname;
+ goto begin_parse_kshname;
+ while ((i = ccp[argi++])) {
+ if (i == '/') {
+ ccp += argi;
+ begin_parse_kshname:
+ argi = 0;
+ if (*ccp == '-')
+ ++ccp;
+ }
+ }
+ if (!*ccp)
+ ccp = empty_argv[0];
+
+ /*
+ * Turn on nohup by default. (AT&T ksh does not have a nohup
+ * option - it always sends the hup).
+ */
+ Flag(FNOHUP) = 1;
+
+ /*
+ * Turn on brace expansion by default. AT&T kshs that have
+ * alternation always have it on.
+ */
+ Flag(FBRACEEXPAND) = 1;
+
+ /*
+ * Turn on "set -x" inheritance by default.
+ */
+ Flag(FXTRACEREC) = 1;
+
+ /* define built-in commands and see if we were called as one */
+ ktinit(APERM, &builtins,
+ /* currently up to 51 builtins: 75% of 128 = 2^7 */
+ 7);
+ for (i = 0; mkshbuiltins[i].name != NULL; i++)
+ if (!strcmp(ccp, builtin(mkshbuiltins[i].name,
+ mkshbuiltins[i].func)))
+ Flag(FAS_BUILTIN) = 1;
+
+ if (!Flag(FAS_BUILTIN)) {
+ /* check for -T option early */
+ argi = parse_args(argv, OF_FIRSTTIME, NULL);
+ if (argi < 0)
+ return (1);
+
+#if defined(MKSH_BINSHPOSIX) || defined(MKSH_BINSHREDUCED)
+ /* are we called as -sh or /bin/sh or so? */
+ if (!strcmp(ccp, "sh")) {
+ /* either also turns off braceexpand */
+#ifdef MKSH_BINSHPOSIX
+ /* enable better POSIX conformance */
+ change_flag(FPOSIX, OF_FIRSTTIME, true);
+#endif
+#ifdef MKSH_BINSHREDUCED
+ /* enable kludge/compat mode */
+ change_flag(FSH, OF_FIRSTTIME, true);
+#endif
+ }
+#endif
+ }
+
+ initvar();
+
+ initctypes();
+
+ inittraps();
+
+ coproc_init();
+
+ /* set up variable and command dictionaries */
+ ktinit(APERM, &taliases, 0);
+ ktinit(APERM, &aliases, 0);
+#ifndef MKSH_NOPWNAM
+ ktinit(APERM, &homedirs, 0);
+#endif
+
+ /* define shell keywords */
+ initkeywords();
+
+ init_histvec();
+
+ /* initialise tty size before importing environment */
+ change_winsz();
+
+#ifdef _PATH_DEFPATH
+ def_path = _PATH_DEFPATH;
+#else
+#ifdef _CS_PATH
+ if ((k = confstr(_CS_PATH, NULL, 0)) > 0 &&
+ confstr(_CS_PATH, cp = alloc(k + 1, APERM), k + 1) == k + 1)
+ def_path = cp;
+ else
+#endif
+ /*
+ * this is uniform across all OSes unless it
+ * breaks somewhere; don't try to optimise,
+ * e.g. add stuff for Interix or remove /usr
+ * for HURD, because e.g. Debian GNU/HURD is
+ * "keeping a regular /usr"; this is supposed
+ * to be a sane 'basic' default PATH
+ */
+ def_path = "/bin:/usr/bin:/sbin:/usr/sbin";
+#endif
+
+ /*
+ * Set PATH to def_path (will set the path global variable).
+ * (import of environment below will probably change this setting).
+ */
+ vp = global("PATH");
+ /* setstr can't fail here */
+ setstr(vp, def_path, KSH_RETURN_ERROR);
+
+#ifndef MKSH_NO_CMDLINE_EDITING
+ /*
+ * Set edit mode to emacs by default, may be overridden
+ * by the environment or the user. Also, we want tab completion
+ * on in vi by default.
+ */
+ change_flag(FEMACS, OF_SPECIAL, true);
+#if !MKSH_S_NOVI
+ Flag(FVITABCOMPLETE) = 1;
+#endif
+#endif
+
+ /* import environment */
+ if (environ != NULL) {
+ wp = (const char **)environ;
+ while (*wp != NULL) {
+ rndpush(*wp);
+ typeset(*wp, IMPORT | EXPORT, 0, 0, 0);
+ ++wp;
+ }
+ }
+
+ /* for security */
+ typeset(initifs, 0, 0, 0, 0);
+
+ /* assign default shell variable values */
+ substitute(initsubs, 0);
+
+ /* Figure out the current working directory and set $PWD */
+ vp = global("PWD");
+ cp = str_val(vp);
+ /* Try to use existing $PWD if it is valid */
+ set_current_wd((cp[0] == '/' && test_eval(NULL, TO_FILEQ, cp, ".",
+ true)) ? cp : NULL);
+ if (current_wd[0])
+ simplify_path(current_wd);
+ /* Only set pwd if we know where we are or if it had a bogus value */
+ if (current_wd[0] || *cp)
+ /* setstr can't fail here */
+ setstr(vp, current_wd, KSH_RETURN_ERROR);
+
+ for (wp = initcoms; *wp != NULL; wp++) {
+ shcomexec(wp);
+ while (*wp != NULL)
+ wp++;
+ }
+ setint_n(global("OPTIND"), 1, 10);
+
+ kshuid = getuid();
+ kshgid = getgid();
+ kshegid = getegid();
+
+ safe_prompt = ksheuid ? "$ " : "# ";
+ vp = global("PS1");
+ /* Set PS1 if unset or we are root and prompt doesn't contain a # */
+ if (!(vp->flag & ISSET) ||
+ (!ksheuid && !strchr(str_val(vp), '#')))
+ /* setstr can't fail here */
+ setstr(vp, safe_prompt, KSH_RETURN_ERROR);
+ setint_n((vp = global("BASHPID")), 0, 10);
+ vp->flag |= INT_U;
+ setint_n((vp = global("PGRP")), (mksh_uari_t)kshpgrp, 10);
+ vp->flag |= INT_U;
+ setint_n((vp = global("PPID")), (mksh_uari_t)kshppid, 10);
+ vp->flag |= INT_U;
+ setint_n((vp = global("USER_ID")), (mksh_uari_t)ksheuid, 10);
+ vp->flag |= INT_U;
+ setint_n((vp = global("KSHUID")), (mksh_uari_t)kshuid, 10);
+ vp->flag |= INT_U;
+ setint_n((vp = global("KSHEGID")), (mksh_uari_t)kshegid, 10);
+ vp->flag |= INT_U;
+ setint_n((vp = global("KSHGID")), (mksh_uari_t)kshgid, 10);
+ vp->flag |= INT_U;
+ setint_n((vp = global("RANDOM")), rndsetup(), 10);
+ vp->flag |= INT_U;
+ setint_n((vp_pipest = global("PIPESTATUS")), 0, 10);
+
+ /* Set this before parsing arguments */
+ Flag(FPRIVILEGED) = (kshuid != ksheuid || kshgid != kshegid) ? 2 : 0;
+
+ /* this to note if monitor is set on command line (see below) */
+#ifndef MKSH_UNEMPLOYED
+ Flag(FMONITOR) = 127;
+#endif
+ /* this to note if utf-8 mode is set on command line (see below) */
+ UTFMODE = 2;
+
+ if (!Flag(FAS_BUILTIN)) {
+ argi = parse_args(argv, OF_CMDLINE, NULL);
+ if (argi < 0)
+ return (1);
+ }
+
+ /* process this later only, default to off (hysterical raisins) */
+ utf_flag = UTFMODE;
+ UTFMODE = 0;
+
+ if (Flag(FAS_BUILTIN)) {
+ /* auto-detect from environment variables, always */
+ utf_flag = 3;
+ } else if (Flag(FCOMMAND)) {
+ s = pushs(SSTRINGCMDLINE, ATEMP);
+ if (!(s->start = s->str = argv[argi++]))
+ errorf("%s %s", "-c", "requires an argument");
+ while (*s->str) {
+ if (*s->str != ' ' && ctype(*s->str, C_QUOTE))
+ break;
+ s->str++;
+ }
+ if (!*s->str)
+ s->flags |= SF_MAYEXEC;
+ s->str = s->start;
+#ifdef MKSH_MIDNIGHTBSD01ASH_COMPAT
+ /* compatibility to MidnightBSD 0.1 /bin/sh (kludge) */
+ if (Flag(FSH) && argv[argi] && !strcmp(argv[argi], "--"))
+ ++argi;
+#endif
+ if (argv[argi])
+ kshname = argv[argi++];
+ } else if (argi < argc && !Flag(FSTDIN)) {
+ s = pushs(SFILE, ATEMP);
+ s->file = argv[argi++];
+ s->u.shf = shf_open(s->file, O_RDONLY, 0,
+ SHF_MAPHI | SHF_CLEXEC);
+ if (s->u.shf == NULL) {
+ shl_stdout_ok = false;
+ warningf(true, "%s: %s", s->file, cstrerror(errno));
+ /* mandated by SUSv4 */
+ exstat = 127;
+ unwind(LERROR);
+ }
+ kshname = s->file;
+ } else {
+ Flag(FSTDIN) = 1;
+ s = pushs(SSTDIN, ATEMP);
+ s->file = "<stdin>";
+ s->u.shf = shf_fdopen(0, SHF_RD | can_seek(0),
+ NULL);
+ if (isatty(0) && isatty(2)) {
+ Flag(FTALKING) = Flag(FTALKING_I) = 1;
+ /* The following only if isatty(0) */
+ s->flags |= SF_TTY;
+ s->u.shf->flags |= SHF_INTERRUPT;
+ s->file = NULL;
+ }
+ }
+
+ /* this bizarreness is mandated by POSIX */
+ if (fstat(0, &s_stdin) >= 0 && S_ISCHR(s_stdin.st_mode) &&
+ Flag(FTALKING))
+ reset_nonblock(0);
+
+ /* initialise job control */
+ j_init();
+ /* do this after j_init() which calls tty_init_state() */
+ if (Flag(FTALKING)) {
+ if (utf_flag == 2) {
+#ifndef MKSH_ASSUME_UTF8
+ /* auto-detect from locale or environment */
+ utf_flag = 4;
+#else /* this may not be an #elif */
+#if MKSH_ASSUME_UTF8
+ utf_flag = 1;
+#else
+ /* always disable UTF-8 (for interactive) */
+ utf_flag = 0;
+#endif
+#endif
+ }
+#ifndef MKSH_NO_CMDLINE_EDITING
+ x_init();
+#endif
+ }
+
+#ifdef SIGWINCH
+ sigtraps[SIGWINCH].flags |= TF_SHELL_USES;
+ setsig(&sigtraps[SIGWINCH], x_sigwinch,
+ SS_RESTORE_ORIG|SS_FORCE|SS_SHTRAP);
+#endif
+
+ l = e->loc;
+ if (Flag(FAS_BUILTIN)) {
+ l->argc = argc;
+ l->argv = argv;
+ l->argv[0] = ccp;
+ } else {
+ l->argc = argc - argi;
+ /*
+ * allocate a new array because otherwise, when we modify
+ * it in-place, ps(1) output changes; the meaning of argc
+ * here is slightly different as it excludes kshname, and
+ * we add a trailing NULL sentinel as well
+ */
+ l->argv = alloc2(l->argc + 2, sizeof(void *), APERM);
+ l->argv[0] = kshname;
+ memcpy(&l->argv[1], &argv[argi], l->argc * sizeof(void *));
+ l->argv[l->argc + 1] = NULL;
+ getopts_reset(1);
+ }
+
+ /* divine the initial state of the utf8-mode Flag */
+ ccp = null;
+ switch (utf_flag) {
+
+ /* auto-detect from locale or environment */
+ case 4:
+#if HAVE_SETLOCALE_CTYPE
+ ccp = setlocale(LC_CTYPE, "");
+#if HAVE_LANGINFO_CODESET
+ if (!isuc(ccp))
+ ccp = nl_langinfo(CODESET);
+#endif
+ if (!isuc(ccp))
+ ccp = null;
+ /* FALLTHROUGH */
+#endif
+
+ /* auto-detect from environment */
+ case 3:
+ /* these were imported from environ earlier */
+ if (ccp == null)
+ ccp = str_val(global("LC_ALL"));
+ if (ccp == null)
+ ccp = str_val(global("LC_CTYPE"));
+ if (ccp == null)
+ ccp = str_val(global("LANG"));
+ UTFMODE = isuc(ccp);
+ break;
+
+ /* not set on command line, not FTALKING */
+ case 2:
+ /* unknown values */
+ default:
+ utf_flag = 0;
+ /* FALLTHROUGH */
+
+ /* known values */
+ case 1:
+ case 0:
+ UTFMODE = utf_flag;
+ break;
+ }
+
+ /* Disable during .profile/ENV reading */
+ restricted = Flag(FRESTRICTED);
+ Flag(FRESTRICTED) = 0;
+ errexit = Flag(FERREXIT);
+ Flag(FERREXIT) = 0;
+
+ /*
+ * Do this before profile/$ENV so that if it causes problems in them,
+ * user will know why things broke.
+ */
+ if (!current_wd[0] && Flag(FTALKING))
+ warningf(false, "can't determine current directory");
+
+ if (Flag(FLOGIN))
+ include(MKSH_SYSTEM_PROFILE, 0, NULL, true);
+ if (!Flag(FPRIVILEGED)) {
+ if (Flag(FLOGIN))
+ include(substitute("$HOME/.profile", 0), 0, NULL, true);
+ if (Flag(FTALKING)) {
+ cp = substitute(substitute("${ENV:-" MKSHRC_PATH "}",
+ 0), DOTILDE);
+ if (cp[0] != '\0')
+ include(cp, 0, NULL, true);
+ }
+ } else {
+ include(MKSH_SUID_PROFILE, 0, NULL, true);
+ /* turn off -p if not set explicitly */
+ if (Flag(FPRIVILEGED) != 1)
+ change_flag(FPRIVILEGED, OF_INTERNAL, false);
+ }
+
+ if (restricted) {
+ shcomexec(restr_com);
+ /* After typeset command... */
+ Flag(FRESTRICTED) = 1;
+ }
+ Flag(FERREXIT) = errexit;
+
+ if (Flag(FTALKING) && s)
+ hist_init(s);
+ else
+ /* set after ENV */
+ Flag(FTRACKALL) = 1;
+
+ alarm_init();
+
+ *sp = s;
+ *lp = l;
+ return (0);
+}
+
+/* this indirection barrier reduces stack usage during normal operation */
+
+int
+main(int argc, const char *argv[])
+{
+ int rv;
+ Source *s;
+ struct block *l;
+
+ if ((rv = main_init(argc, argv, &s, &l)) == 0) {
+ if (Flag(FAS_BUILTIN)) {
+ rv = shcomexec(l->argv);
+ } else {
+ shell(s, true);
+ /* NOTREACHED */
+ }
+ }
+ return (rv);
+}
+
+int
+include(const char *name, int argc, const char **argv, bool intr_ok)
+{
+ Source *volatile s = NULL;
+ struct shf *shf;
+ const char **volatile old_argv;
+ volatile int old_argc;
+ int i;
+
+ shf = shf_open(name, O_RDONLY, 0, SHF_MAPHI | SHF_CLEXEC);
+ if (shf == NULL)
+ return (-1);
+
+ if (argv) {
+ old_argv = e->loc->argv;
+ old_argc = e->loc->argc;
+ } else {
+ old_argv = NULL;
+ old_argc = 0;
+ }
+ newenv(E_INCL);
+ if ((i = kshsetjmp(e->jbuf))) {
+ quitenv(s ? s->u.shf : NULL);
+ if (old_argv) {
+ e->loc->argv = old_argv;
+ e->loc->argc = old_argc;
+ }
+ switch (i) {
+ case LRETURN:
+ case LERROR:
+ /* see below */
+ return (exstat & 0xFF);
+ case LINTR:
+ /*
+ * intr_ok is set if we are including .profile or $ENV.
+ * If user ^Cs out, we don't want to kill the shell...
+ */
+ if (intr_ok && ((exstat & 0xFF) - 128) != SIGTERM)
+ return (1);
+ /* FALLTHROUGH */
+ case LEXIT:
+ case LLEAVE:
+ case LSHELL:
+ unwind(i);
+ /* NOTREACHED */
+ default:
+ internal_errorf("%s %d", "include", i);
+ /* NOTREACHED */
+ }
+ }
+ if (argv) {
+ e->loc->argv = argv;
+ e->loc->argc = argc;
+ }
+ s = pushs(SFILE, ATEMP);
+ s->u.shf = shf;
+ strdupx(s->file, name, ATEMP);
+ i = shell(s, false);
+ quitenv(s->u.shf);
+ if (old_argv) {
+ e->loc->argv = old_argv;
+ e->loc->argc = old_argc;
+ }
+ /* & 0xff to ensure value not -1 */
+ return (i & 0xFF);
+}
+
+/* spawn a command into a shell optionally keeping track of the line number */
+int
+command(const char *comm, int line)
+{
+ Source *s;
+
+ s = pushs(SSTRING, ATEMP);
+ s->start = s->str = comm;
+ s->line = line;
+ return (shell(s, false));
+}
+
+/*
+ * run the commands from the input source, returning status.
+ */
+int
+shell(Source * volatile s, volatile bool toplevel)
+{
+ struct op *t;
+ volatile bool wastty = tobool(s->flags & SF_TTY);
+ volatile uint8_t attempts = 13;
+ volatile bool interactive = Flag(FTALKING) && toplevel;
+ volatile bool sfirst = true;
+ Source *volatile old_source = source;
+ int i;
+
+ newenv(E_PARSE);
+ if (interactive)
+ really_exit = false;
+ switch ((i = kshsetjmp(e->jbuf))) {
+ case 0:
+ break;
+ case LINTR:
+ /* we get here if SIGINT not caught or ignored */
+ case LERROR:
+ case LSHELL:
+ if (interactive) {
+ if (i == LINTR)
+ shellf("\n");
+ /*
+ * Reset any eof that was read as part of a
+ * multiline command.
+ */
+ if (Flag(FIGNOREEOF) && s->type == SEOF && wastty)
+ s->type = SSTDIN;
+ /*
+ * Used by exit command to get back to
+ * top level shell. Kind of strange since
+ * interactive is set if we are reading from
+ * a tty, but to have stopped jobs, one only
+ * needs FMONITOR set (not FTALKING/SF_TTY)...
+ */
+ /* toss any input we have so far */
+ yyrecursive_pop(true);
+ s->start = s->str = null;
+ retrace_info = NULL;
+ herep = heres;
+ break;
+ }
+ /* FALLTHROUGH */
+ case LEXIT:
+ case LLEAVE:
+ case LRETURN:
+ source = old_source;
+ quitenv(NULL);
+ /* keep on going */
+ unwind(i);
+ /* NOTREACHED */
+ default:
+ source = old_source;
+ quitenv(NULL);
+ internal_errorf("%s %d", "shell", i);
+ /* NOTREACHED */
+ }
+ while (/* CONSTCOND */ 1) {
+ if (trap)
+ runtraps(0);
+
+ if (s->next == NULL) {
+ if (Flag(FVERBOSE))
+ s->flags |= SF_ECHO;
+ else
+ s->flags &= ~SF_ECHO;
+ }
+ if (interactive) {
+ j_notify();
+ set_prompt(PS1, s);
+ }
+ t = compile(s, sfirst);
+ sfirst = false;
+ if (!t)
+ goto source_no_tree;
+ if (t->type == TEOF) {
+ if (wastty && Flag(FIGNOREEOF) && --attempts > 0) {
+ shellf("Use 'exit' to leave mksh\n");
+ s->type = SSTDIN;
+ } else if (wastty && !really_exit &&
+ j_stopped_running()) {
+ really_exit = true;
+ s->type = SSTDIN;
+ } else {
+ /*
+ * this for POSIX which says EXIT traps
+ * shall be taken in the environment
+ * immediately after the last command
+ * executed.
+ */
+ if (toplevel)
+ unwind(LEXIT);
+ break;
+ }
+ } else if ((s->flags & SF_MAYEXEC) && t->type == TCOM)
+ t->u.evalflags |= DOTCOMEXEC;
+ if (!Flag(FNOEXEC) || (s->flags & SF_TTY))
+ exstat = execute(t, 0, NULL) & 0xFF;
+
+ if (t->type != TEOF && interactive && really_exit)
+ really_exit = false;
+
+ source_no_tree:
+ reclaim();
+ }
+ quitenv(NULL);
+ source = old_source;
+ return (exstat & 0xFF);
+}
+
+/* return to closest error handler or shell(), exit if none found */
+/* note: i MUST NOT be 0 */
+void
+unwind(int i)
+{
+ /*
+ * This is a kludge. We need to restore everything that was
+ * changed in the new environment, see cid 1005090337C7A669439
+ * and 10050903386452ACBF1, but fail to even save things most of
+ * the time. funcs.c:c_eval() changes FERREXIT temporarily to 0,
+ * which needs to be restored thus (related to Debian #696823).
+ * We did not save the shell flags, so we use a special or'd
+ * value here... this is mostly to clean up behind *other*
+ * callers of unwind(LERROR) here; exec.c has the regular case.
+ */
+ if (Flag(FERREXIT) & 0x80) {
+ /* GNU bash does not run this trapsig */
+ trapsig(ksh_SIGERR);
+ Flag(FERREXIT) &= ~0x80;
+ }
+
+ /* ordering for EXIT vs ERR is a bit odd (this is what AT&T ksh does) */
+ if (i == LEXIT || ((i == LERROR || i == LINTR) &&
+ sigtraps[ksh_SIGEXIT].trap &&
+ (!Flag(FTALKING) || Flag(FERREXIT)))) {
+ ++trap_nested;
+ runtrap(&sigtraps[ksh_SIGEXIT], trap_nested == 1);
+ --trap_nested;
+ i = LLEAVE;
+ } else if (Flag(FERREXIT) == 1 && (i == LERROR || i == LINTR)) {
+ ++trap_nested;
+ runtrap(&sigtraps[ksh_SIGERR], trap_nested == 1);
+ --trap_nested;
+ i = LLEAVE;
+ }
+
+ while (/* CONSTCOND */ 1) {
+ switch (e->type) {
+ case E_PARSE:
+ case E_FUNC:
+ case E_INCL:
+ case E_LOOP:
+ case E_ERRH:
+ kshlongjmp(e->jbuf, i);
+ /* NOTREACHED */
+ case E_NONE:
+ if (i == LINTR)
+ e->flags |= EF_FAKE_SIGDIE;
+ /* FALLTHROUGH */
+ default:
+ quitenv(NULL);
+ }
+ }
+}
+
+void
+newenv(int type)
+{
+ struct env *ep;
+ char *cp;
+
+ /*
+ * struct env includes ALLOC_ITEM for alignment constraints
+ * so first get the actually used memory, then assign it
+ */
+ cp = alloc(sizeof(struct env) - ALLOC_SIZE, ATEMP);
+ /* undo what alloc() did to the malloc result address */
+ ep = (void *)(cp - ALLOC_SIZE);
+ /* initialise public members of struct env (not the ALLOC_ITEM) */
+ ainit(&ep->area);
+ ep->oenv = e;
+ ep->loc = e->loc;
+ ep->savefd = NULL;
+ ep->temps = NULL;
+ ep->yyrecursive_statep = NULL;
+ ep->type = type;
+ ep->flags = 0;
+ /* jump buffer is invalid because flags == 0 */
+ e = ep;
+}
+
+void
+quitenv(struct shf *shf)
+{
+ struct env *ep = e;
+ char *cp;
+ int fd;
+
+ yyrecursive_pop(true);
+ while (ep->oenv && ep->oenv->loc != ep->loc)
+ popblock();
+ if (ep->savefd != NULL) {
+ for (fd = 0; fd < NUFILE; fd++)
+ /* if ep->savefd[fd] < 0, means fd was closed */
+ if (ep->savefd[fd])
+ restfd(fd, ep->savefd[fd]);
+ if (ep->savefd[2])
+ /* Clear any write errors */
+ shf_reopen(2, SHF_WR, shl_out);
+ }
+ /*
+ * Bottom of the stack.
+ * Either main shell is exiting or cleanup_parents_env() was called.
+ */
+ if (ep->oenv == NULL) {
+#ifdef DEBUG_LEAKS
+ int i;
+#endif
+
+ if (ep->type == E_NONE) {
+ /* Main shell exiting? */
+#if HAVE_PERSISTENT_HISTORY
+ if (Flag(FTALKING))
+ hist_finish();
+#endif
+ j_exit();
+ if (ep->flags & EF_FAKE_SIGDIE) {
+ int sig = (exstat & 0xFF) - 128;
+
+ /*
+ * ham up our death a bit (AT&T ksh
+ * only seems to do this for SIGTERM)
+ * Don't do it for SIGQUIT, since we'd
+ * dump a core..
+ */
+ if ((sig == SIGINT || sig == SIGTERM) &&
+ (kshpgrp == kshpid)) {
+ setsig(&sigtraps[sig], SIG_DFL,
+ SS_RESTORE_CURR | SS_FORCE);
+ kill(0, sig);
+ }
+ }
+ }
+ if (shf)
+ shf_close(shf);
+ reclaim();
+#ifdef DEBUG_LEAKS
+#ifndef MKSH_NO_CMDLINE_EDITING
+ x_done();
+#endif
+#ifndef MKSH_NOPROSPECTOFWORK
+ /* block at least SIGCHLD during/after afreeall */
+ sigprocmask(SIG_BLOCK, &sm_sigchld, NULL);
+#endif
+ afreeall(APERM);
+ for (fd = 3; fd < NUFILE; fd++)
+ if ((i = fcntl(fd, F_GETFD, 0)) != -1 &&
+ (i & FD_CLOEXEC))
+ close(fd);
+ close(2);
+ close(1);
+ close(0);
+#endif
+ exit(exstat & 0xFF);
+ }
+ if (shf)
+ shf_close(shf);
+ reclaim();
+
+ e = e->oenv;
+
+ /* free the struct env - tricky due to the ALLOC_ITEM inside */
+ cp = (void *)ep;
+ afree(cp + ALLOC_SIZE, ATEMP);
+}
+
+/* Called after a fork to cleanup stuff left over from parents environment */
+void
+cleanup_parents_env(void)
+{
+ struct env *ep;
+ int fd;
+
+ mkssert(e != NULL);
+
+ /*
+ * Don't clean up temporary files - parent will probably need them.
+ * Also, can't easily reclaim memory since variables, etc. could be
+ * anywhere.
+ */
+
+ /* close all file descriptors hiding in savefd */
+ for (ep = e; ep; ep = ep->oenv) {
+ if (ep->savefd) {
+ for (fd = 0; fd < NUFILE; fd++)
+ if (ep->savefd[fd] > 0)
+ close(ep->savefd[fd]);
+ afree(ep->savefd, &ep->area);
+ ep->savefd = NULL;
+ }
+#ifdef DEBUG_LEAKS
+ if (ep->type != E_NONE)
+ ep->type = E_GONE;
+#endif
+ }
+#ifndef DEBUG_LEAKS
+ e->oenv = NULL;
+#endif
+}
+
+/* Called just before an execve cleanup stuff temporary files */
+void
+cleanup_proc_env(void)
+{
+ struct env *ep;
+
+ for (ep = e; ep; ep = ep->oenv)
+ remove_temps(ep->temps);
+}
+
+/* remove temp files and free ATEMP Area */
+static void
+reclaim(void)
+{
+ struct block *l;
+
+ while ((l = e->loc) && (!e->oenv || e->oenv->loc != l)) {
+ e->loc = l->next;
+ afreeall(&l->area);
+ }
+
+ remove_temps(e->temps);
+ e->temps = NULL;
+ afreeall(&e->area);
+}
+
+static void
+remove_temps(struct temp *tp)
+{
+ for (; tp != NULL; tp = tp->next)
+ if (tp->pid == procpid)
+ unlink(tp->tffn);
+}
+
+/*
+ * Initialise tty_fd. Used for tracking the size of the terminal,
+ * saving/resetting tty modes upon forground job completion, and
+ * for setting up the tty process group. Return values:
+ * 0 = got controlling tty
+ * 1 = got terminal but no controlling tty
+ * 2 = cannot find a terminal
+ * 3 = cannot dup fd
+ * 4 = cannot make fd close-on-exec
+ * An existing tty_fd is cached if no "better" one could be found,
+ * i.e. if tty_devtty was already set or the new would not set it.
+ */
+int
+tty_init_fd(void)
+{
+ int fd, rv, eno = 0;
+ bool do_close = false, is_devtty = true;
+
+ if (tty_devtty) {
+ /* already got a tty which is /dev/tty */
+ return (0);
+ }
+
+#ifdef _UWIN
+ /*XXX imake style */
+ if (isatty(3)) {
+ /* fd 3 on UWIN _is_ /dev/tty (or our controlling tty) */
+ fd = 3;
+ goto got_fd;
+ }
+#endif
+ if ((fd = open("/dev/tty", O_RDWR, 0)) >= 0) {
+ do_close = true;
+ goto got_fd;
+ }
+ eno = errno;
+
+ if (tty_fd >= 0) {
+ /* already got a non-devtty one */
+ rv = 1;
+ goto out;
+ }
+ is_devtty = false;
+
+ if (isatty((fd = 0)) || isatty((fd = 2)))
+ goto got_fd;
+ /* cannot find one */
+ rv = 2;
+ /* assert: do_close == false */
+ goto out;
+
+ got_fd:
+ if ((rv = fcntl(fd, F_DUPFD, FDBASE)) < 0) {
+ eno = errno;
+ rv = 3;
+ goto out;
+ }
+ if (fcntl(rv, F_SETFD, FD_CLOEXEC) < 0) {
+ eno = errno;
+ close(rv);
+ rv = 4;
+ goto out;
+ }
+ tty_fd = rv;
+ tty_devtty = is_devtty;
+ rv = eno = 0;
+ out:
+ if (do_close)
+ close(fd);
+ errno = eno;
+ return (rv);
+}
+
+/* A shell error occurred (eg, syntax error, etc.) */
+
+#define VWARNINGF_ERRORPREFIX 1
+#define VWARNINGF_FILELINE 2
+#define VWARNINGF_BUILTIN 4
+#define VWARNINGF_INTERNAL 8
+
+static void vwarningf(unsigned int, const char *, va_list)
+ MKSH_A_FORMAT(__printf__, 2, 0);
+
+static void
+vwarningf(unsigned int flags, const char *fmt, va_list ap)
+{
+ if (fmt) {
+ if (flags & VWARNINGF_INTERNAL)
+ shf_fprintf(shl_out, "internal error: ");
+ if (flags & VWARNINGF_ERRORPREFIX)
+ error_prefix(tobool(flags & VWARNINGF_FILELINE));
+ if ((flags & VWARNINGF_BUILTIN) &&
+ /* not set when main() calls parse_args() */
+ builtin_argv0 && builtin_argv0 != kshname)
+ shf_fprintf(shl_out, "%s: ", builtin_argv0);
+ shf_vfprintf(shl_out, fmt, ap);
+ shf_putchar('\n', shl_out);
+ }
+ shf_flush(shl_out);
+}
+
+void
+errorfx(int rc, const char *fmt, ...)
+{
+ va_list va;
+
+ exstat = rc;
+
+ /* debugging: note that stdout not valid */
+ shl_stdout_ok = false;
+
+ va_start(va, fmt);
+ vwarningf(VWARNINGF_ERRORPREFIX | VWARNINGF_FILELINE, fmt, va);
+ va_end(va);
+ unwind(LERROR);
+}
+
+void
+errorf(const char *fmt, ...)
+{
+ va_list va;
+
+ exstat = 1;
+
+ /* debugging: note that stdout not valid */
+ shl_stdout_ok = false;
+
+ va_start(va, fmt);
+ vwarningf(VWARNINGF_ERRORPREFIX | VWARNINGF_FILELINE, fmt, va);
+ va_end(va);
+ unwind(LERROR);
+}
+
+/* like errorf(), but no unwind is done */
+void
+warningf(bool fileline, const char *fmt, ...)
+{
+ va_list va;
+
+ va_start(va, fmt);
+ vwarningf(VWARNINGF_ERRORPREFIX | (fileline ? VWARNINGF_FILELINE : 0),
+ fmt, va);
+ va_end(va);
+}
+
+/*
+ * Used by built-in utilities to prefix shell and utility name to message
+ * (also unwinds environments for special builtins).
+ */
+void
+bi_errorf(const char *fmt, ...)
+{
+ va_list va;
+
+ /* debugging: note that stdout not valid */
+ shl_stdout_ok = false;
+
+ exstat = 1;
+
+ va_start(va, fmt);
+ vwarningf(VWARNINGF_ERRORPREFIX | VWARNINGF_FILELINE |
+ VWARNINGF_BUILTIN, fmt, va);
+ va_end(va);
+
+ /*
+ * POSIX special builtins and ksh special builtins cause
+ * non-interactive shells to exit.
+ * XXX odd use of KEEPASN; also may not want LERROR here
+ */
+ if (builtin_flag & SPEC_BI) {
+ builtin_argv0 = NULL;
+ unwind(LERROR);
+ }
+}
+
+/* Called when something that shouldn't happen does */
+void
+internal_errorf(const char *fmt, ...)
+{
+ va_list va;
+
+ va_start(va, fmt);
+ vwarningf(VWARNINGF_INTERNAL, fmt, va);
+ va_end(va);
+ unwind(LERROR);
+}
+
+void
+internal_warningf(const char *fmt, ...)
+{
+ va_list va;
+
+ va_start(va, fmt);
+ vwarningf(VWARNINGF_INTERNAL, fmt, va);
+ va_end(va);
+}
+
+/* used by error reporting functions to print "ksh: .kshrc[25]: " */
+void
+error_prefix(bool fileline)
+{
+ /* Avoid foo: foo[2]: ... */
+ if (!fileline || !source || !source->file ||
+ strcmp(source->file, kshname) != 0)
+ shf_fprintf(shl_out, "%s: ", kshname + (*kshname == '-'));
+ if (fileline && source && source->file != NULL) {
+ shf_fprintf(shl_out, "%s[%d]: ", source->file,
+ source->errline > 0 ? source->errline : source->line);
+ source->errline = 0;
+ }
+}
+
+/* printf to shl_out (stderr) with flush */
+void
+shellf(const char *fmt, ...)
+{
+ va_list va;
+
+ if (!initio_done)
+ /* shl_out may not be set up yet... */
+ return;
+ va_start(va, fmt);
+ shf_vfprintf(shl_out, fmt, va);
+ va_end(va);
+ shf_flush(shl_out);
+}
+
+/* printf to shl_stdout (stdout) */
+void
+shprintf(const char *fmt, ...)
+{
+ va_list va;
+
+ if (!shl_stdout_ok)
+ internal_errorf("shl_stdout not valid");
+ va_start(va, fmt);
+ shf_vfprintf(shl_stdout, fmt, va);
+ va_end(va);
+}
+
+/* test if we can seek backwards fd (returns 0 or SHF_UNBUF) */
+int
+can_seek(int fd)
+{
+ struct stat statb;
+
+ return (fstat(fd, &statb) == 0 && !S_ISREG(statb.st_mode) ?
+ SHF_UNBUF : 0);
+}
+
+#ifdef DF
+int shl_dbg_fd;
+#define NSHF_IOB 4
+#else
+#define NSHF_IOB 3
+#endif
+struct shf shf_iob[NSHF_IOB];
+
+void
+initio(void)
+{
+#ifdef DF
+ const char *lfp;
+#endif
+
+ /* force buffer allocation */
+ shf_fdopen(1, SHF_WR, shl_stdout);
+ shf_fdopen(2, SHF_WR, shl_out);
+ shf_fdopen(2, SHF_WR, shl_xtrace);
+#ifdef DF
+ if ((lfp = getenv("SDMKSH_PATH")) == NULL) {
+ if ((lfp = getenv("HOME")) == NULL || *lfp != '/')
+ errorf("cannot get home directory");
+ lfp = shf_smprintf("%s/mksh-dbg.txt", lfp);
+ }
+
+ if ((shl_dbg_fd = open(lfp, O_WRONLY | O_APPEND | O_CREAT, 0600)) < 0)
+ errorf("cannot open debug output file %s", lfp);
+ if (shl_dbg_fd < FDBASE) {
+ int nfd;
+
+ nfd = fcntl(shl_dbg_fd, F_DUPFD, FDBASE);
+ close(shl_dbg_fd);
+ if ((shl_dbg_fd = nfd) == -1)
+ errorf("cannot dup debug output file");
+ }
+ fcntl(shl_dbg_fd, F_SETFD, FD_CLOEXEC);
+ shf_fdopen(shl_dbg_fd, SHF_WR, shl_dbg);
+ DF("=== open ===");
+#endif
+ initio_done = true;
+}
+
+/* A dup2() with error checking */
+int
+ksh_dup2(int ofd, int nfd, bool errok)
+{
+ int rv;
+
+ if (((rv = dup2(ofd, nfd)) < 0) && !errok && (errno != EBADF))
+ errorf("too many files open in shell");
+
+#ifdef __ultrix
+ /*XXX imake style */
+ if (rv >= 0)
+ fcntl(nfd, F_SETFD, 0);
+#endif
+
+ return (rv);
+}
+
+/*
+ * Move fd from user space (0 <= fd < 10) to shell space (fd >= 10),
+ * set close-on-exec flag. See FDBASE in sh.h, maybe 24 not 10 here.
+ */
+short
+savefd(int fd)
+{
+ int nfd = fd;
+
+ if (fd < FDBASE && (nfd = fcntl(fd, F_DUPFD, FDBASE)) < 0 &&
+ errno == EBADF)
+ return (-1);
+ if (nfd < 0 || nfd > SHRT_MAX)
+ errorf("too many files open in shell");
+ fcntl(nfd, F_SETFD, FD_CLOEXEC);
+ return ((short)nfd);
+}
+
+void
+restfd(int fd, int ofd)
+{
+ if (fd == 2)
+ shf_flush(&shf_iob[/* fd */ 2]);
+ if (ofd < 0)
+ /* original fd closed */
+ close(fd);
+ else if (fd != ofd) {
+ /*XXX: what to do if this dup fails? */
+ ksh_dup2(ofd, fd, true);
+ close(ofd);
+ }
+}
+
+void
+openpipe(int *pv)
+{
+ int lpv[2];
+
+ if (pipe(lpv) < 0)
+ errorf("can't create pipe - try again");
+ pv[0] = savefd(lpv[0]);
+ if (pv[0] != lpv[0])
+ close(lpv[0]);
+ pv[1] = savefd(lpv[1]);
+ if (pv[1] != lpv[1])
+ close(lpv[1]);
+}
+
+void
+closepipe(int *pv)
+{
+ close(pv[0]);
+ close(pv[1]);
+}
+
+/*
+ * Called by iosetup() (deals with 2>&4, etc.), c_read, c_print to turn
+ * a string (the X in 2>&X, read -uX, print -uX) into a file descriptor.
+ */
+int
+check_fd(const char *name, int mode, const char **emsgp)
+{
+ int fd, fl;
+
+ if (name[0] == 'p' && !name[1])
+ return (coproc_getfd(mode, emsgp));
+ for (fd = 0; ksh_isdigit(*name); ++name)
+ fd = (fd * 10) + *name - '0';
+ if (*name || fd >= FDBASE) {
+ if (emsgp)
+ *emsgp = "illegal file descriptor name";
+ return (-1);
+ }
+ if ((fl = fcntl(fd, F_GETFL, 0)) < 0) {
+ if (emsgp)
+ *emsgp = "bad file descriptor";
+ return (-1);
+ }
+ fl &= O_ACCMODE;
+ /*
+ * X_OK is a kludge to disable this check for dups (x<&1):
+ * historical shells never did this check (XXX don't know what
+ * POSIX has to say).
+ */
+ if (!(mode & X_OK) && fl != O_RDWR && (
+ ((mode & R_OK) && fl != O_RDONLY) ||
+ ((mode & W_OK) && fl != O_WRONLY))) {
+ if (emsgp)
+ *emsgp = (fl == O_WRONLY) ?
+ "fd not open for reading" :
+ "fd not open for writing";
+ return (-1);
+ }
+ return (fd);
+}
+
+/* Called once from main */
+void
+coproc_init(void)
+{
+ coproc.read = coproc.readw = coproc.write = -1;
+ coproc.njobs = 0;
+ coproc.id = 0;
+}
+
+/* Called by c_read() when eof is read - close fd if it is the co-process fd */
+void
+coproc_read_close(int fd)
+{
+ if (coproc.read >= 0 && fd == coproc.read) {
+ coproc_readw_close(fd);
+ close(coproc.read);
+ coproc.read = -1;
+ }
+}
+
+/*
+ * Called by c_read() and by iosetup() to close the other side of the
+ * read pipe, so reads will actually terminate.
+ */
+void
+coproc_readw_close(int fd)
+{
+ if (coproc.readw >= 0 && coproc.read >= 0 && fd == coproc.read) {
+ close(coproc.readw);
+ coproc.readw = -1;
+ }
+}
+
+/*
+ * Called by c_print when a write to a fd fails with EPIPE and by iosetup
+ * when co-process input is dup'd
+ */
+void
+coproc_write_close(int fd)
+{
+ if (coproc.write >= 0 && fd == coproc.write) {
+ close(coproc.write);
+ coproc.write = -1;
+ }
+}
+
+/*
+ * Called to check for existence of/value of the co-process file descriptor.
+ * (Used by check_fd() and by c_read/c_print to deal with -p option).
+ */
+int
+coproc_getfd(int mode, const char **emsgp)
+{
+ int fd = (mode & R_OK) ? coproc.read : coproc.write;
+
+ if (fd >= 0)
+ return (fd);
+ if (emsgp)
+ *emsgp = "no coprocess";
+ return (-1);
+}
+
+/*
+ * called to close file descriptors related to the coprocess (if any)
+ * Should be called with SIGCHLD blocked.
+ */
+void
+coproc_cleanup(int reuse)
+{
+ /* This to allow co-processes to share output pipe */
+ if (!reuse || coproc.readw < 0 || coproc.read < 0) {
+ if (coproc.read >= 0) {
+ close(coproc.read);
+ coproc.read = -1;
+ }
+ if (coproc.readw >= 0) {
+ close(coproc.readw);
+ coproc.readw = -1;
+ }
+ }
+ if (coproc.write >= 0) {
+ close(coproc.write);
+ coproc.write = -1;
+ }
+}
+
+struct temp *
+maketemp(Area *ap, Temp_type type, struct temp **tlist)
+{
+ char *cp;
+ size_t len;
+ int i, j;
+ struct temp *tp;
+ const char *dir;
+ struct stat sb;
+
+ dir = tmpdir ? tmpdir : MKSH_DEFAULT_TMPDIR;
+ /* add "/shXXXXXX.tmp" plus NUL */
+ len = strlen(dir);
+ checkoktoadd(len, offsetof(struct temp, tffn[0]) + 14);
+ tp = alloc(offsetof(struct temp, tffn[0]) + 14 + len, ap);
+
+ tp->shf = NULL;
+ tp->pid = procpid;
+ tp->type = type;
+
+ if (stat(dir, &sb) || !S_ISDIR(sb.st_mode)) {
+ tp->tffn[0] = '\0';
+ goto maketemp_out;
+ }
+
+ cp = (void *)tp;
+ cp += offsetof(struct temp, tffn[0]);
+ memcpy(cp, dir, len);
+ cp += len;
+ memcpy(cp, "/shXXXXXX.tmp", 14);
+ /* point to the first of six Xes */
+ cp += 3;
+ /* generate random part of filename */
+ len = -1;
+ do {
+ i = rndget() % 36;
+ cp[++len] = i < 26 ? 'a' + i : '0' + i - 26;
+ } while (len < 5);
+
+ /* cyclically attempt to open a temporary file */
+ while ((i = open(tp->tffn, O_CREAT | O_EXCL | O_RDWR | O_BINARY,
+ 0600)) < 0) {
+ if (errno != EEXIST)
+ goto maketemp_out;
+ /* count down from z to a then from 9 to 0 */
+ while (cp[len] == '0')
+ if (!len--)
+ goto maketemp_out;
+ if (cp[len] == 'a')
+ cp[len] = '9';
+ else
+ --cp[len];
+ /* do another cycle */
+ }
+
+ if (type == TT_FUNSUB) {
+ /* map us high and mark as close-on-exec */
+ if ((j = savefd(i)) != i) {
+ close(i);
+ i = j;
+ }
+
+ /* operation mode for the shf */
+ j = SHF_RD;
+ } else
+ j = SHF_WR;
+
+ /* shf_fdopen cannot fail, so no fd leak */
+ tp->shf = shf_fdopen(i, j, NULL);
+
+ maketemp_out:
+ tp->next = *tlist;
+ *tlist = tp;
+ return (tp);
+}
+
+/*
+ * We use a similar collision resolution algorithm as Python 2.5.4
+ * but with a slightly tweaked implementation written from scratch.
+ */
+
+#define INIT_TBLSHIFT 3 /* initial table shift (2^3 = 8) */
+#define PERTURB_SHIFT 5 /* see Python 2.5.4 Objects/dictobject.c */
+
+static void tgrow(struct table *);
+static int tnamecmp(const void *, const void *);
+
+static void
+tgrow(struct table *tp)
+{
+ size_t i, j, osize, mask, perturb;
+ struct tbl *tblp, **pp;
+ struct tbl **ntblp, **otblp = tp->tbls;
+
+ if (tp->tshift > 29)
+ internal_errorf("hash table size limit reached");
+
+ /* calculate old size, new shift and new size */
+ osize = (size_t)1 << (tp->tshift++);
+ i = osize << 1;
+
+ ntblp = alloc2(i, sizeof(struct tbl *), tp->areap);
+ /* multiplication cannot overflow: alloc2 checked that */
+ memset(ntblp, 0, i * sizeof(struct tbl *));
+
+ /* table can get very full when reaching its size limit */
+ tp->nfree = (tp->tshift == 30) ? 0x3FFF0000UL :
+ /* but otherwise, only 75% */
+ ((i * 3) / 4);
+ tp->tbls = ntblp;
+ if (otblp == NULL)
+ return;
+
+ mask = i - 1;
+ for (i = 0; i < osize; i++)
+ if ((tblp = otblp[i]) != NULL) {
+ if ((tblp->flag & DEFINED)) {
+ /* search for free hash table slot */
+ j = perturb = tblp->ua.hval;
+ goto find_first_empty_slot;
+ find_next_empty_slot:
+ j = (j << 2) + j + perturb + 1;
+ perturb >>= PERTURB_SHIFT;
+ find_first_empty_slot:
+ pp = &ntblp[j & mask];
+ if (*pp != NULL)
+ goto find_next_empty_slot;
+ /* found an empty hash table slot */
+ *pp = tblp;
+ tp->nfree--;
+ } else if (!(tblp->flag & FINUSE)) {
+ afree(tblp, tp->areap);
+ }
+ }
+ afree(otblp, tp->areap);
+}
+
+void
+ktinit(Area *ap, struct table *tp, uint8_t initshift)
+{
+ tp->areap = ap;
+ tp->tbls = NULL;
+ tp->tshift = ((initshift > INIT_TBLSHIFT) ?
+ initshift : INIT_TBLSHIFT) - 1;
+ tgrow(tp);
+}
+
+/* table, name (key) to search for, hash(name), rv pointer to tbl ptr */
+struct tbl *
+ktscan(struct table *tp, const char *name, uint32_t h, struct tbl ***ppp)
+{
+ size_t j, perturb, mask;
+ struct tbl **pp, *p;
+
+ mask = ((size_t)1 << (tp->tshift)) - 1;
+ /* search for hash table slot matching name */
+ j = perturb = h;
+ goto find_first_slot;
+ find_next_slot:
+ j = (j << 2) + j + perturb + 1;
+ perturb >>= PERTURB_SHIFT;
+ find_first_slot:
+ pp = &tp->tbls[j & mask];
+ if ((p = *pp) != NULL && (p->ua.hval != h || !(p->flag & DEFINED) ||
+ strcmp(p->name, name)))
+ goto find_next_slot;
+ /* p == NULL if not found, correct found entry otherwise */
+ if (ppp)
+ *ppp = pp;
+ return (p);
+}
+
+/* table, name (key) to enter, hash(n) */
+struct tbl *
+ktenter(struct table *tp, const char *n, uint32_t h)
+{
+ struct tbl **pp, *p;
+ size_t len;
+
+ Search:
+ if ((p = ktscan(tp, n, h, &pp)))
+ return (p);
+
+ if (tp->nfree == 0) {
+ /* too full */
+ tgrow(tp);
+ goto Search;
+ }
+
+ /* create new tbl entry */
+ len = strlen(n);
+ checkoktoadd(len, offsetof(struct tbl, name[0]) + 1);
+ p = alloc(offsetof(struct tbl, name[0]) + ++len, tp->areap);
+ p->flag = 0;
+ p->type = 0;
+ p->areap = tp->areap;
+ p->ua.hval = h;
+ p->u2.field = 0;
+ p->u.array = NULL;
+ memcpy(p->name, n, len);
+
+ /* enter in tp->tbls */
+ tp->nfree--;
+ *pp = p;
+ return (p);
+}
+
+void
+ktwalk(struct tstate *ts, struct table *tp)
+{
+ ts->left = (size_t)1 << (tp->tshift);
+ ts->next = tp->tbls;
+}
+
+struct tbl *
+ktnext(struct tstate *ts)
+{
+ while (--ts->left >= 0) {
+ struct tbl *p = *ts->next++;
+ if (p != NULL && (p->flag & DEFINED))
+ return (p);
+ }
+ return (NULL);
+}
+
+static int
+tnamecmp(const void *p1, const void *p2)
+{
+ const struct tbl *a = *((const struct tbl * const *)p1);
+ const struct tbl *b = *((const struct tbl * const *)p2);
+
+ return (strcmp(a->name, b->name));
+}
+
+struct tbl **
+ktsort(struct table *tp)
+{
+ size_t i;
+ struct tbl **p, **sp, **dp;
+
+ /*
+ * since the table is never entirely full, no need to reserve
+ * additional space for the trailing NULL appended below
+ */
+ i = (size_t)1 << (tp->tshift);
+ p = alloc2(i, sizeof(struct tbl *), ATEMP);
+ sp = tp->tbls; /* source */
+ dp = p; /* dest */
+ while (i--)
+ if ((*dp = *sp++) != NULL && (((*dp)->flag & DEFINED) ||
+ ((*dp)->flag & ARRAY)))
+ dp++;
+ qsort(p, (i = dp - p), sizeof(struct tbl *), tnamecmp);
+ p[i] = NULL;
+ return (p);
+}
+
+#ifdef SIGWINCH
+static void
+x_sigwinch(int sig MKSH_A_UNUSED)
+{
+ /* this runs inside interrupt context, with errno saved */
+
+ got_winch = 1;
+}
+#endif
+
+#ifdef DF
+void
+DF(const char *fmt, ...)
+{
+ va_list args;
+ struct timeval tv;
+ mirtime_mjd mjd;
+
+ mksh_lockfd(shl_dbg_fd);
+ mksh_TIME(tv);
+ timet2mjd(&mjd, tv.tv_sec);
+ shf_fprintf(shl_dbg, "[%02u:%02u:%02u (%u) %u.%06u] ",
+ (unsigned)mjd.sec / 3600, ((unsigned)mjd.sec / 60) % 60,
+ (unsigned)mjd.sec % 60, (unsigned)getpid(),
+ (unsigned)tv.tv_sec, (unsigned)tv.tv_usec);
+ va_start(args, fmt);
+ shf_vfprintf(shl_dbg, fmt, args);
+ va_end(args);
+ shf_putc('\n', shl_dbg);
+ shf_flush(shl_dbg);
+ mksh_unlkfd(shl_dbg_fd);
+}
+#endif
+
+void
+x_mkraw(int fd, mksh_ttyst *ocb, bool forread)
+{
+ mksh_ttyst cb;
+
+ if (ocb)
+ mksh_tcget(fd, ocb);
+ else
+ ocb = &tty_state;
+
+ cb = *ocb;
+ if (forread) {
+ cb.c_iflag &= ~(ISTRIP);
+ cb.c_lflag &= ~(ICANON) | ECHO;
+ } else {
+ cb.c_iflag &= ~(INLCR | ICRNL | ISTRIP);
+ cb.c_lflag &= ~(ISIG | ICANON | ECHO);
+ }
+#if defined(VLNEXT) && defined(_POSIX_VDISABLE)
+ /* OSF/1 processes lnext when ~icanon */
+ cb.c_cc[VLNEXT] = _POSIX_VDISABLE;
+#endif
+ /* SunOS 4.1.x & OSF/1 processes discard(flush) when ~icanon */
+#if defined(VDISCARD) && defined(_POSIX_VDISABLE)
+ cb.c_cc[VDISCARD] = _POSIX_VDISABLE;
+#endif
+ cb.c_cc[VTIME] = 0;
+ cb.c_cc[VMIN] = 1;
+
+ mksh_tcset(fd, &cb);
+}
Copied: vendor/MirOS/mksh/R50/mirhash.h (from rev 6707, vendor/MirOS/mksh/dist/mirhash.h)
===================================================================
--- vendor/MirOS/mksh/R50/mirhash.h (rev 0)
+++ vendor/MirOS/mksh/R50/mirhash.h 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,218 @@
+/*-
+ * Copyright © 2011, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un‐
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person’s immediate fault when using the work as intended.
+ *-
+ * This file provides BAFH (Better Avalanche for the Jenkins Hash) as
+ * inline macro bodies that operate on “register uint32_t” variables,
+ * with variants that use their local intermediate registers.
+ *
+ * Usage note for BAFH with entropy distribution: input up to 4 bytes
+ * is best combined into a 32-bit unsigned integer, which is then run
+ * through BAFHFinish_reg for mixing and then used as context instead
+ * of 0. Longer input should be handled the same: take the first four
+ * bytes as IV after mixing then add subsequent bytes the same way.
+ * This needs counting input bytes and is endian-dependent, thus not,
+ * for speed reasons, specified for the regular stable hash, but very
+ * much recommended if the actual output value may differ across runs
+ * (so is using a random value instead of 0 for the IV).
+ */
+
+#ifndef SYSKERN_MIRHASH_H
+#define SYSKERN_MIRHASH_H 1
+#define SYSKERN_MIRHASH_BAFH
+
+#include <sys/types.h>
+
+__RCSID("$MirOS: src/bin/mksh/mirhash.h,v 1.2 2014/06/29 11:48:05 tg Exp $");
+
+/*-
+ * BAFH itself is defined by the following primitives:
+ *
+ * • BAFHInit(ctx) initialises the hash context, which consists of a
+ * sole 32-bit unsigned integer (ideally in a register), to 0.
+ * It is possible to use any initial value out of [0; 2³²[ – which
+ * is, in fact, recommended if using BAFH for entropy distribution
+ * – but for a regular stable hash, the IV 0 is needed.
+ *
+ * • BAFHUpdateOctet(ctx,val) compresses the unsigned 8-bit quantity
+ * into the hash context. The algorithm used is Jenkins’ one-at-a-
+ * time, except that an additional constant 1 is added so that, if
+ * the context is (still) zero, adding a NUL byte is not ignored.
+ *
+ * • BAFHror(eax,cl) evaluates to the unsigned 32-bit integer “eax”,
+ * rotated right by “cl” ∈ [0;31]; no casting, be careful!
+ *
+ * • BAFHFinish(ctx) avalanches the context around so every sub-byte
+ * depends on all input octets; afterwards, the context variable’s
+ * value is the hash output. BAFH does not use any padding, nor is
+ * the input length added; this is due to the common use case (for
+ * quick entropy distribution and use with a hashtable).
+ * Warning: BAFHFinish uses the MixColumn algorithm of AES – which
+ * is reversible (to avoid introducing funnels and reducing entro‐
+ * py), so blinding may need to be employed for some uses, e.g. in
+ * mksh, after a fork.
+ *
+ * The BAFHUpdateOctet and BAFHFinish are available in two flavours:
+ * suffixed with _reg (assumes the context is in a register) or _mem
+ * (which doesn’t).
+ *
+ * The following high-level macros (with _reg and _mem variants) are
+ * available:
+ *
+ * • BAFHUpdateMem(ctx,buf,len) adds a memory block to a context.
+ * • BAFHUpdateStr(ctx,buf) is equivalent to using len=strlen(buf).
+ * • BAFHHostMem(ctx,buf,len) calculates the hash of the memory buf‐
+ * fer using the first 4 octets (mixed) for IV, as outlined above;
+ * the result is endian-dependent; “ctx” assumed to be a register.
+ * • BAFHHostStr(ctx,buf) does the same for C strings.
+ *
+ * All macros may use ctx multiple times in their expansion, but all
+ * other arguments are always evaluated at most once.
+ *
+ * To stay portable, never use the BAFHHost*() macros (these are for
+ * host-local entropy shuffling), and encode numbers using ULEB128.
+ */
+
+#define BAFHInit(h) do { \
+ (h) = 0; \
+} while (/* CONSTCOND */ 0)
+
+#define BAFHUpdateOctet_reg(h,b) do { \
+ (h) += (uint8_t)(b); \
+ ++(h); \
+ (h) += (h) << 10; \
+ (h) ^= (h) >> 6; \
+} while (/* CONSTCOND */ 0)
+
+#define BAFHUpdateOctet_mem(m,b) do { \
+ register uint32_t BAFH_h = (m); \
+ \
+ BAFHUpdateOctet_reg(BAFH_h, (b)); \
+ (m) = BAFH_h; \
+} while (/* CONSTCOND */ 0)
+
+#define BAFHror(eax,cl) (((eax) >> (cl)) | ((eax) << (32 - (cl))))
+
+#define BAFHFinish_reg(h) do { \
+ register uint32_t BAFHFinish_v; \
+ \
+ BAFHFinish_v = ((h) >> 7) & 0x01010101U; \
+ BAFHFinish_v += BAFHFinish_v << 1; \
+ BAFHFinish_v += BAFHFinish_v << 3; \
+ BAFHFinish_v ^= ((h) << 1) & 0xFEFEFEFEU; \
+ \
+ BAFHFinish_v ^= BAFHror(BAFHFinish_v, 8); \
+ BAFHFinish_v ^= ((h) = BAFHror((h), 8)); \
+ BAFHFinish_v ^= ((h) = BAFHror((h), 8)); \
+ (h) = BAFHror((h), 8) ^ BAFHFinish_v; \
+} while (/* CONSTCOND */ 0)
+
+#define BAFHFinish_mem(m) do { \
+ register uint32_t BAFHFinish_v, BAFH_h = (m); \
+ \
+ BAFHFinish_v = (BAFH_h >> 7) & 0x01010101U; \
+ BAFHFinish_v += BAFHFinish_v << 1; \
+ BAFHFinish_v += BAFHFinish_v << 3; \
+ BAFHFinish_v ^= (BAFH_h << 1) & 0xFEFEFEFEU; \
+ \
+ BAFHFinish_v ^= BAFHror(BAFHFinish_v, 8); \
+ BAFHFinish_v ^= (BAFH_h = BAFHror(BAFH_h, 8)); \
+ BAFHFinish_v ^= (BAFH_h = BAFHror(BAFH_h, 8)); \
+ (m) = BAFHror(BAFH_h, 8) ^ BAFHFinish_v; \
+} while (/* CONSTCOND */ 0)
+
+#define BAFHUpdateMem_reg(h,p,z) do { \
+ register const uint8_t *BAFHUpdate_p; \
+ register size_t BAFHUpdate_z = (z); \
+ \
+ BAFHUpdate_p = (const void *)(p); \
+ while (BAFHUpdate_z--) \
+ BAFHUpdateOctet_reg((h), *BAFHUpdate_p++); \
+} while (/* CONSTCOND */ 0)
+
+/* meh should have named them _r/m but that’s not valid C */
+#define BAFHUpdateMem_mem(m,p,z) do { \
+ register uint32_t BAFH_h = (m); \
+ \
+ BAFHUpdateMem_reg(BAFH_h, (p), (z)); \
+ (m) = BAFH_h; \
+} while (/* CONSTCOND */ 0)
+
+#define BAFHUpdateStr_reg(h,s) do { \
+ register const uint8_t *BAFHUpdate_s; \
+ register uint8_t BAFHUpdate_c; \
+ \
+ BAFHUpdate_s = (const void *)(s); \
+ while ((BAFHUpdate_c = *BAFHUpdate_s++) != 0) \
+ BAFHUpdateOctet_reg((h), BAFHUpdate_c); \
+} while (/* CONSTCOND */ 0)
+
+#define BAFHUpdateStr_mem(m,s) do { \
+ register uint32_t BAFH_h = (m); \
+ \
+ BAFHUpdateStr_reg(BAFH_h, (s)); \
+ (m) = BAFH_h; \
+} while (/* CONSTCOND */ 0)
+
+#define BAFHHostMem(h,p,z) do { \
+ register const uint8_t *BAFHUpdate_p; \
+ register size_t BAFHUpdate_z = (z); \
+ size_t BAFHHost_z; \
+ union { \
+ uint8_t as_u8[4]; \
+ uint32_t as_u32; \
+ } BAFHHost_v; \
+ \
+ BAFHUpdate_p = (const void *)(p); \
+ BAFHHost_v.as_u32 = 0; \
+ BAFHHost_z = BAFHUpdate_z < 4 ? BAFHUpdate_z : 4; \
+ memcpy(BAFHHost_v.as_u8, BAFHUpdate_p, BAFHHost_z); \
+ BAFHUpdate_p += BAFHHost_z; \
+ BAFHUpdate_z -= BAFHHost_z; \
+ (h) = BAFHHost_v.as_u32; \
+ BAFHFinish_reg(h); \
+ while (BAFHUpdate_z--) \
+ BAFHUpdateOctet_reg((h), *BAFHUpdate_p++); \
+ BAFHFinish_reg(h); \
+} while (/* CONSTCOND */ 0)
+
+#define BAFHHostStr(h,s) do { \
+ register const uint8_t *BAFHUpdate_s; \
+ register uint8_t BAFHUpdate_c; \
+ union { \
+ uint8_t as_u8[4]; \
+ uint32_t as_u32; \
+ } BAFHHost_v; \
+ \
+ BAFHUpdate_s = (const void *)(s); \
+ if ((BAFHHost_v.as_u8[0] = *BAFHUpdate_s) != 0) \
+ ++BAFHUpdate_s; \
+ if ((BAFHHost_v.as_u8[1] = *BAFHUpdate_s) != 0) \
+ ++BAFHUpdate_s; \
+ if ((BAFHHost_v.as_u8[2] = *BAFHUpdate_s) != 0) \
+ ++BAFHUpdate_s; \
+ if ((BAFHHost_v.as_u8[3] = *BAFHUpdate_s) != 0) \
+ ++BAFHUpdate_s; \
+ (h) = BAFHHost_v.as_u32; \
+ BAFHFinish_reg(h); \
+ while ((BAFHUpdate_c = *BAFHUpdate_s++) != 0) \
+ BAFHUpdateOctet_reg((h), BAFHUpdate_c); \
+ BAFHFinish_reg(h); \
+} while (/* CONSTCOND */ 0)
+
+#endif
Deleted: vendor/MirOS/mksh/R50/misc.c
===================================================================
--- vendor/MirOS/mksh/dist/misc.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/misc.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,2272 +0,0 @@
-/* $OpenBSD: misc.c,v 1.37 2009/04/19 20:34:05 sthen Exp $ */
-/* $OpenBSD: path.c,v 1.12 2005/03/30 17:16:37 deraadt Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- * 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-#if !HAVE_GETRUSAGE
-#include <sys/times.h>
-#endif
-#if HAVE_GRP_H
-#include <grp.h>
-#endif
-
-__RCSID("$MirOS: src/bin/mksh/misc.c,v 1.214 2013/08/11 14:57:09 tg Exp $");
-
-#define KSH_CHVT_FLAG
-#ifdef MKSH_SMALL
-#undef KSH_CHVT_FLAG
-#endif
-#ifdef TIOCSCTTY
-#define KSH_CHVT_CODE
-#define KSH_CHVT_FLAG
-#endif
-#ifdef MKSH_LEGACY_MODE
-#undef KSH_CHVT_CODE
-#undef KSH_CHVT_FLAG
-#endif
-
-/* type bits for unsigned char */
-unsigned char chtypes[UCHAR_MAX + 1];
-
-static const unsigned char *pat_scan(const unsigned char *,
- const unsigned char *, bool);
-static int do_gmatch(const unsigned char *, const unsigned char *,
- const unsigned char *, const unsigned char *);
-static const unsigned char *cclass(const unsigned char *, unsigned char);
-#ifdef KSH_CHVT_CODE
-static void chvt(const Getopt *);
-#endif
-
-/*XXX this should go away */
-static int make_path(const char *, const char *, char **, XString *, int *);
-
-#ifdef SETUID_CAN_FAIL_WITH_EAGAIN
-/* we don't need to check for other codes, EPERM won't happen */
-#define DO_SETUID(func, argvec) do { \
- if ((func argvec) && errno == EAGAIN) \
- errorf("%s failed with EAGAIN, probably due to a" \
- " too low process limit; aborting", #func); \
-} while (/* CONSTCOND */ 0)
-#else
-#define DO_SETUID(func, argvec) func argvec
-#endif
-
-/*
- * Fast character classes
- */
-void
-setctypes(const char *s, int t)
-{
- unsigned int i;
-
- if (t & C_IFS) {
- for (i = 0; i < UCHAR_MAX + 1; i++)
- chtypes[i] &= ~C_IFS;
- /* include \0 in C_IFS */
- chtypes[0] |= C_IFS;
- }
- while (*s != 0)
- chtypes[(unsigned char)*s++] |= t;
-}
-
-void
-initctypes(void)
-{
- int c;
-
- for (c = 'a'; c <= 'z'; c++)
- chtypes[c] |= C_ALPHA;
- for (c = 'A'; c <= 'Z'; c++)
- chtypes[c] |= C_ALPHA;
- chtypes['_'] |= C_ALPHA;
- setctypes("0123456789", C_DIGIT);
- /* \0 added automatically */
- setctypes(TC_LEX1, C_LEX1);
- setctypes("*@#!$-?", C_VAR1);
- setctypes(TC_IFSWS, C_IFSWS);
- setctypes("=-+?", C_SUBOP1);
- setctypes("\t\n \"#$&'()*;<=>?[\\]`|", C_QUOTE);
-}
-
-/* called from XcheckN() to grow buffer */
-char *
-Xcheck_grow(XString *xsp, const char *xp, size_t more)
-{
- const char *old_beg = xsp->beg;
-
- if (more < xsp->len)
- more = xsp->len;
- /* (xsp->len + X_EXTRA) never overflows */
- checkoktoadd(more, xsp->len + X_EXTRA);
- xsp->beg = aresize(xsp->beg, (xsp->len += more) + X_EXTRA, xsp->areap);
- xsp->end = xsp->beg + xsp->len;
- return (xsp->beg + (xp - old_beg));
-}
-
-
-#define SHFLAGS_DEFNS
-#include "sh_flags.h"
-
-#define OFC(i) (options[i][-2])
-#define OFF(i) (((const unsigned char *)options[i])[-1])
-#define OFN(i) (options[i])
-
-const char * const options[] = {
-#define SHFLAGS_ITEMS
-#include "sh_flags.h"
-};
-
-/*
- * translate -o option into F* constant (also used for test -o option)
- */
-size_t
-option(const char *n)
-{
- size_t i = 0;
-
- if ((n[0] == '-' || n[0] == '+') && n[1] && !n[2])
- while (i < NELEM(options)) {
- if (OFC(i) == n[1])
- return (i);
- ++i;
- }
- else
- while (i < NELEM(options)) {
- if (!strcmp(OFN(i), n))
- return (i);
- ++i;
- }
-
- return ((size_t)-1);
-}
-
-struct options_info {
- int opt_width;
- int opts[NELEM(options)];
-};
-
-static char *options_fmt_entry(char *, size_t, unsigned int, const void *);
-static void printoptions(bool);
-
-/* format a single select menu item */
-static char *
-options_fmt_entry(char *buf, size_t buflen, unsigned int i, const void *arg)
-{
- const struct options_info *oi = (const struct options_info *)arg;
-
- shf_snprintf(buf, buflen, "%-*s %s",
- oi->opt_width, OFN(oi->opts[i]),
- Flag(oi->opts[i]) ? "on" : "off");
- return (buf);
-}
-
-static void
-printoptions(bool verbose)
-{
- size_t i = 0;
-
- if (verbose) {
- size_t n = 0, len, octs = 0;
- struct options_info oi;
-
- /* verbose version */
- shf_puts("Current option settings\n", shl_stdout);
-
- oi.opt_width = 0;
- while (i < NELEM(options)) {
- if ((len = strlen(OFN(i)))) {
- oi.opts[n++] = i;
- if (len > octs)
- octs = len;
- len = utf_mbswidth(OFN(i));
- if ((int)len > oi.opt_width)
- oi.opt_width = (int)len;
- }
- ++i;
- }
- print_columns(shl_stdout, n, options_fmt_entry, &oi,
- octs + 4, oi.opt_width + 4, true);
- } else {
- /* short version like AT&T ksh93 */
- shf_puts(Tset, shl_stdout);
- while (i < NELEM(options)) {
- if (Flag(i) && OFN(i)[0])
- shprintf(" -o %s", OFN(i));
- ++i;
- }
- shf_putc('\n', shl_stdout);
- }
-}
-
-char *
-getoptions(void)
-{
- size_t i = 0;
- char c, m[(int)FNFLAGS + 1];
- char *cp = m;
-
- while (i < NELEM(options)) {
- if ((c = OFC(i)) && Flag(i))
- *cp++ = c;
- ++i;
- }
- strndupx(cp, m, cp - m, ATEMP);
- return (cp);
-}
-
-/* change a Flag(*) value; takes care of special actions */
-void
-change_flag(enum sh_flag f, int what, bool newset)
-{
- unsigned char oldval;
- unsigned char newval = (newset ? 1 : 0);
-
- if (f == FXTRACE) {
- change_xtrace(newval, true);
- return;
- }
- oldval = Flag(f);
- Flag(f) = newval = (newset ? 1 : 0);
-#ifndef MKSH_UNEMPLOYED
- if (f == FMONITOR) {
- if (what != OF_CMDLINE && newval != oldval)
- j_change();
- } else
-#endif
-#ifndef MKSH_NO_CMDLINE_EDITING
- if ((
-#if !MKSH_S_NOVI
- f == FVI ||
-#endif
- f == FEMACS || f == FGMACS) && newval) {
-#if !MKSH_S_NOVI
- Flag(FVI) =
-#endif
- Flag(FEMACS) = Flag(FGMACS) = 0;
- Flag(f) = newval;
- } else
-#endif
- if (f == FPRIVILEGED && oldval && !newval) {
- /* Turning off -p? */
-
- /*XXX this can probably be optimised */
- kshegid = kshgid = getgid();
-#if HAVE_SETRESUGID
- DO_SETUID(setresgid, (kshegid, kshegid, kshegid));
-#if HAVE_SETGROUPS
- /* setgroups doesn't EAGAIN on Linux */
- setgroups(1, &kshegid);
-#endif
- DO_SETUID(setresuid, (ksheuid, ksheuid, ksheuid));
-#else
- /* seteuid, setegid, setgid don't EAGAIN on Linux */
- ksheuid = kshuid = getuid();
-#ifndef MKSH__NO_SETEUGID
- seteuid(ksheuid);
-#endif
- DO_SETUID(setuid, (ksheuid));
-#ifndef MKSH__NO_SETEUGID
- setegid(kshegid);
-#endif
- setgid(kshegid);
-#endif
- } else if ((f == FPOSIX || f == FSH) && newval) {
- /* Turning on -o posix or -o sh? */
- Flag(FBRACEEXPAND) = 0;
- } else if (f == FTALKING) {
- /* Changing interactive flag? */
- if ((what == OF_CMDLINE || what == OF_SET) && procpid == kshpid)
- Flag(FTALKING_I) = newval;
- }
-}
-
-void
-change_xtrace(unsigned char newval, bool dosnapshot)
-{
- if (!dosnapshot && newval == Flag(FXTRACE))
- return;
-
- if (Flag(FXTRACE) == 2) {
- shf_putc('\n', shl_xtrace);
- Flag(FXTRACE) = 1;
- shf_flush(shl_xtrace);
- }
-
- if (!dosnapshot && Flag(FXTRACE) == 1)
- switch (newval) {
- case 1:
- return;
- case 2:
- goto changed_xtrace;
- }
-
- shf_flush(shl_xtrace);
- if (shl_xtrace->fd != 2)
- close(shl_xtrace->fd);
- if (!newval || (shl_xtrace->fd = savefd(2)) == -1)
- shl_xtrace->fd = 2;
-
- changed_xtrace:
- if ((Flag(FXTRACE) = newval) == 2)
- shf_puts(substitute(str_val(global("PS4")), 0), shl_xtrace);
-}
-
-/*
- * Parse command line and set command arguments. Returns the index of
- * non-option arguments, -1 if there is an error.
- */
-int
-parse_args(const char **argv,
- /* OF_CMDLINE or OF_SET */
- int what,
- bool *setargsp)
-{
- static char cmd_opts[NELEM(options) + 5]; /* o:T:\0 */
- static char set_opts[NELEM(options) + 6]; /* A:o;s\0 */
- bool set;
- char *opts;
- const char *array = NULL;
- Getopt go;
- size_t i;
- int optc, arrayset = 0;
- bool sortargs = false;
- bool fcompatseen = false;
-
- /* First call? Build option strings... */
- if (cmd_opts[0] == '\0') {
- char ch, *p = cmd_opts, *q = set_opts;
-
- /* see cmd_opts[] declaration */
- *p++ = 'o';
- *p++ = ':';
-#ifdef KSH_CHVT_FLAG
- *p++ = 'T';
- *p++ = ':';
-#endif
- /* see set_opts[] declaration */
- *q++ = 'A';
- *q++ = ':';
- *q++ = 'o';
- *q++ = ';';
- *q++ = 's';
-
- for (i = 0; i < NELEM(options); i++) {
- if ((ch = OFC(i))) {
- if (OFF(i) & OF_CMDLINE)
- *p++ = ch;
- if (OFF(i) & OF_SET)
- *q++ = ch;
- }
- }
- *p = '\0';
- *q = '\0';
- }
-
- if (what == OF_CMDLINE) {
- const char *p = argv[0], *q;
- /*
- * Set FLOGIN before parsing options so user can clear
- * flag using +l.
- */
- if (*p != '-')
- for (q = p; *q; )
- if (*q++ == '/')
- p = q;
- Flag(FLOGIN) = (*p == '-');
- opts = cmd_opts;
- } else if (what == OF_FIRSTTIME) {
- opts = cmd_opts;
- } else
- opts = set_opts;
- ksh_getopt_reset(&go, GF_ERROR|GF_PLUSOPT);
- while ((optc = ksh_getopt(argv, &go, opts)) != -1) {
- set = tobool(!(go.info & GI_PLUS));
- switch (optc) {
- case 'A':
- if (what == OF_FIRSTTIME)
- break;
- arrayset = set ? 1 : -1;
- array = go.optarg;
- break;
-
- case 'o':
- if (what == OF_FIRSTTIME)
- break;
- if (go.optarg == NULL) {
- /*
- * lone -o: print options
- *
- * Note that on the command line, -o requires
- * an option (ie, can't get here if what is
- * OF_CMDLINE).
- */
- printoptions(set);
- break;
- }
- i = option(go.optarg);
- if ((i == FPOSIX || i == FSH) && set && !fcompatseen) {
- /*
- * If running 'set -o posix' or
- * 'set -o sh', turn off the other;
- * if running 'set -o posix -o sh'
- * allow both to be set though.
- */
- Flag(FPOSIX) = 0;
- Flag(FSH) = 0;
- fcompatseen = true;
- }
- if ((i != (size_t)-1) && (set ? 1U : 0U) == Flag(i))
- /*
- * Don't check the context if the flag
- * isn't changing - makes "set -o interactive"
- * work if you're already interactive. Needed
- * if the output of "set +o" is to be used.
- */
- ;
- else if ((i != (size_t)-1) && (OFF(i) & what))
- change_flag((enum sh_flag)i, what, set);
- else {
- bi_errorf("%s: %s", go.optarg, "bad option");
- return (-1);
- }
- break;
-
-#ifdef KSH_CHVT_FLAG
- case 'T':
- if (what != OF_FIRSTTIME)
- break;
-#ifndef KSH_CHVT_CODE
- errorf("no TIOCSCTTY ioctl");
-#else
- change_flag(FTALKING, OF_CMDLINE, true);
- chvt(&go);
- break;
-#endif
-#endif
-
- case '?':
- return (-1);
-
- default:
- if (what == OF_FIRSTTIME)
- break;
- /* -s: sort positional params (AT&T ksh stupidity) */
- if (what == OF_SET && optc == 's') {
- sortargs = true;
- break;
- }
- for (i = 0; i < NELEM(options); i++)
- if (optc == OFC(i) &&
- (what & OFF(i))) {
- change_flag((enum sh_flag)i, what, set);
- break;
- }
- if (i == NELEM(options))
- internal_errorf("parse_args: '%c'", optc);
- }
- }
- if (!(go.info & GI_MINUSMINUS) && argv[go.optind] &&
- (argv[go.optind][0] == '-' || argv[go.optind][0] == '+') &&
- argv[go.optind][1] == '\0') {
- /* lone - clears -v and -x flags */
- if (argv[go.optind][0] == '-') {
- Flag(FVERBOSE) = 0;
- change_xtrace(0, false);
- }
- /* set skips lone - or + option */
- go.optind++;
- }
- if (setargsp)
- /* -- means set $#/$* even if there are no arguments */
- *setargsp = !arrayset && ((go.info & GI_MINUSMINUS) ||
- argv[go.optind]);
-
- if (arrayset) {
- const char *ccp = NULL;
-
- mkssert(array != NULL);
- if (*array)
- ccp = skip_varname(array, false);
- if (!ccp || !(!ccp[0] || (ccp[0] == '+' && !ccp[1]))) {
- bi_errorf("%s: %s", array, "is not an identifier");
- return (-1);
- }
- }
- if (sortargs) {
- for (i = go.optind; argv[i]; i++)
- ;
- qsort(&argv[go.optind], i - go.optind, sizeof(void *),
- xstrcmp);
- }
- if (arrayset)
- go.optind += set_array(array, tobool(arrayset > 0),
- argv + go.optind);
-
- return (go.optind);
-}
-
-/* parse a decimal number: returns 0 if string isn't a number, 1 otherwise */
-int
-getn(const char *s, int *ai)
-{
- char c;
- mksh_ari_u num;
- bool neg = false;
-
- num.u = 0;
-
- do {
- c = *s++;
- } while (ksh_isspace(c));
-
- switch (c) {
- case '-':
- neg = true;
- /* FALLTHROUGH */
- case '+':
- c = *s++;
- break;
- }
-
- do {
- if (!ksh_isdigit(c))
- /* not numeric */
- return (0);
- if (num.u > 214748364U)
- /* overflow on multiplication */
- return (0);
- num.u = num.u * 10U + (unsigned int)(c - '0');
- /* now: num.u <= 2147483649U */
- } while ((c = *s++));
-
- if (num.u > (neg ? 2147483648U : 2147483647U))
- /* overflow for signed 32-bit int */
- return (0);
-
- if (neg)
- num.u = -num.u;
- *ai = num.i;
- return (1);
-}
-
-/**
- * pattern simplifications:
- * - @(x) -> x (not @(x|y) though)
- * - ** -> *
- */
-static void *
-simplify_gmatch_pattern(const unsigned char *sp)
-{
- uint8_t c;
- unsigned char *cp, *dp;
- const unsigned char *ps, *se;
-
- cp = alloc(strlen((const void *)sp) + 1, ATEMP);
- goto simplify_gmatch_pat1a;
-
- /* foo@(b@(a)r)b@(a|a)z -> foobarb@(a|a)z */
- simplify_gmatch_pat1:
- sp = cp;
- simplify_gmatch_pat1a:
- dp = cp;
- se = sp + strlen((const void *)sp);
- while ((c = *sp++)) {
- if (!ISMAGIC(c)) {
- *dp++ = c;
- continue;
- }
- switch ((c = *sp++)) {
- case 0x80|'@':
- /* simile for @ */
- case 0x80|' ':
- /* check whether it has only one clause */
- ps = pat_scan(sp, se, true);
- if (!ps || ps[-1] != /*(*/ ')')
- /* nope */
- break;
- /* copy inner clause until matching close */
- ps -= 2;
- while ((const unsigned char *)sp < ps)
- *dp++ = *sp++;
- /* skip MAGIC and closing parenthesis */
- sp += 2;
- /* copy the rest of the pattern */
- memmove(dp, sp, strlen((const void *)sp) + 1);
- /* redo from start */
- goto simplify_gmatch_pat1;
- }
- *dp++ = MAGIC;
- *dp++ = c;
- }
- *dp = '\0';
-
- /* collapse adjacent asterisk wildcards */
- sp = dp = cp;
- while ((c = *sp++)) {
- if (!ISMAGIC(c)) {
- *dp++ = c;
- continue;
- }
- switch ((c = *sp++)) {
- case '*':
- while (ISMAGIC(sp[0]) && sp[1] == c)
- sp += 2;
- break;
- }
- *dp++ = MAGIC;
- *dp++ = c;
- }
- *dp = '\0';
-
- /* return the result, allocated from ATEMP */
- return (cp);
-}
-
-/* -------- gmatch.c -------- */
-
-/*
- * int gmatch(string, pattern)
- * char *string, *pattern;
- *
- * Match a pattern as in sh(1).
- * pattern character are prefixed with MAGIC by expand.
- */
-int
-gmatchx(const char *s, const char *p, bool isfile)
-{
- const char *se, *pe;
- char *pnew;
- int rv;
-
- if (s == NULL || p == NULL)
- return (0);
-
- se = s + strlen(s);
- pe = p + strlen(p);
- /*
- * isfile is false iff no syntax check has been done on
- * the pattern. If check fails, just to a strcmp().
- */
- if (!isfile && !has_globbing(p, pe)) {
- size_t len = pe - p + 1;
- char tbuf[64];
- char *t = len <= sizeof(tbuf) ? tbuf : alloc(len, ATEMP);
- debunk(t, p, len);
- return (!strcmp(t, s));
- }
-
- /*
- * since the do_gmatch() engine sucks so much, we must do some
- * pattern simplifications
- */
- pnew = simplify_gmatch_pattern((const unsigned char *)p);
- pe = pnew + strlen(pnew);
-
- rv = do_gmatch((const unsigned char *)s, (const unsigned char *)se,
- (const unsigned char *)pnew, (const unsigned char *)pe);
- afree(pnew, ATEMP);
- return (rv);
-}
-
-/**
- * Returns if p is a syntacticly correct globbing pattern, false
- * if it contains no pattern characters or if there is a syntax error.
- * Syntax errors are:
- * - [ with no closing ]
- * - imbalanced $(...) expression
- * - [...] and *(...) not nested (eg, [a$(b|]c), *(a[b|c]d))
- */
-/*XXX
- * - if no magic,
- * if dest given, copy to dst
- * return ?
- * - if magic && (no globbing || syntax error)
- * debunk to dst
- * return ?
- * - return ?
- */
-int
-has_globbing(const char *xp, const char *xpe)
-{
- const unsigned char *p = (const unsigned char *) xp;
- const unsigned char *pe = (const unsigned char *) xpe;
- int c;
- int nest = 0, bnest = 0;
- bool saw_glob = false;
- /* inside [...] */
- bool in_bracket = false;
-
- for (; p < pe; p++) {
- if (!ISMAGIC(*p))
- continue;
- if ((c = *++p) == '*' || c == '?')
- saw_glob = true;
- else if (c == '[') {
- if (!in_bracket) {
- saw_glob = true;
- in_bracket = true;
- if (ISMAGIC(p[1]) && p[2] == '!')
- p += 2;
- if (ISMAGIC(p[1]) && p[2] == ']')
- p += 2;
- }
- /*XXX Do we need to check ranges here? POSIX Q */
- } else if (c == ']') {
- if (in_bracket) {
- if (bnest)
- /* [a*(b]) */
- return (0);
- in_bracket = false;
- }
- } else if ((c & 0x80) && vstrchr("*+?@! ", c & 0x7f)) {
- saw_glob = true;
- if (in_bracket)
- bnest++;
- else
- nest++;
- } else if (c == '|') {
- if (in_bracket && !bnest)
- /* *(a[foo|bar]) */
- return (0);
- } else if (c == /*(*/ ')') {
- if (in_bracket) {
- if (!bnest--)
- /* *(a[b)c] */
- return (0);
- } else if (nest)
- nest--;
- }
- /*
- * else must be a MAGIC-MAGIC, or MAGIC-!,
- * MAGIC--, MAGIC-], MAGIC-{, MAGIC-, MAGIC-}
- */
- }
- return (saw_glob && !in_bracket && !nest);
-}
-
-/* Function must return either 0 or 1 (assumed by code for 0x80|'!') */
-static int
-do_gmatch(const unsigned char *s, const unsigned char *se,
- const unsigned char *p, const unsigned char *pe)
-{
- unsigned char sc, pc;
- const unsigned char *prest, *psub, *pnext;
- const unsigned char *srest;
-
- if (s == NULL || p == NULL)
- return (0);
- while (p < pe) {
- pc = *p++;
- sc = s < se ? *s : '\0';
- s++;
- if (!ISMAGIC(pc)) {
- if (sc != pc)
- return (0);
- continue;
- }
- switch (*p++) {
- case '[':
- if (sc == 0 || (p = cclass(p, sc)) == NULL)
- return (0);
- break;
-
- case '?':
- if (sc == 0)
- return (0);
- if (UTFMODE) {
- --s;
- s += utf_ptradj((const void *)s);
- }
- break;
-
- case '*':
- if (p == pe)
- return (1);
- s--;
- do {
- if (do_gmatch(s, se, p, pe))
- return (1);
- } while (s++ < se);
- return (0);
-
- /**
- * [*+?@!](pattern|pattern|..)
- * This is also needed for ${..%..}, etc.
- */
-
- /* matches one or more times */
- case 0x80|'+':
- /* matches zero or more times */
- case 0x80|'*':
- if (!(prest = pat_scan(p, pe, false)))
- return (0);
- s--;
- /* take care of zero matches */
- if (p[-1] == (0x80 | '*') &&
- do_gmatch(s, se, prest, pe))
- return (1);
- for (psub = p; ; psub = pnext) {
- pnext = pat_scan(psub, pe, true);
- for (srest = s; srest <= se; srest++) {
- if (do_gmatch(s, srest, psub, pnext - 2) &&
- (do_gmatch(srest, se, prest, pe) ||
- (s != srest && do_gmatch(srest,
- se, p - 2, pe))))
- return (1);
- }
- if (pnext == prest)
- break;
- }
- return (0);
-
- /* matches zero or once */
- case 0x80|'?':
- /* matches one of the patterns */
- case 0x80|'@':
- /* simile for @ */
- case 0x80|' ':
- if (!(prest = pat_scan(p, pe, false)))
- return (0);
- s--;
- /* Take care of zero matches */
- if (p[-1] == (0x80 | '?') &&
- do_gmatch(s, se, prest, pe))
- return (1);
- for (psub = p; ; psub = pnext) {
- pnext = pat_scan(psub, pe, true);
- srest = prest == pe ? se : s;
- for (; srest <= se; srest++) {
- if (do_gmatch(s, srest, psub, pnext - 2) &&
- do_gmatch(srest, se, prest, pe))
- return (1);
- }
- if (pnext == prest)
- break;
- }
- return (0);
-
- /* matches none of the patterns */
- case 0x80|'!':
- if (!(prest = pat_scan(p, pe, false)))
- return (0);
- s--;
- for (srest = s; srest <= se; srest++) {
- int matched = 0;
-
- for (psub = p; ; psub = pnext) {
- pnext = pat_scan(psub, pe, true);
- if (do_gmatch(s, srest, psub,
- pnext - 2)) {
- matched = 1;
- break;
- }
- if (pnext == prest)
- break;
- }
- if (!matched &&
- do_gmatch(srest, se, prest, pe))
- return (1);
- }
- return (0);
-
- default:
- if (sc != p[-1])
- return (0);
- break;
- }
- }
- return (s == se);
-}
-
-static const unsigned char *
-cclass(const unsigned char *p, unsigned char sub)
-{
- unsigned char c, d;
- bool notp, found = false;
- const unsigned char *orig_p = p;
-
- if ((notp = tobool(ISMAGIC(*p) && *++p == '!')))
- p++;
- do {
- c = *p++;
- if (ISMAGIC(c)) {
- c = *p++;
- if ((c & 0x80) && !ISMAGIC(c)) {
- /* extended pattern matching: *+?@! */
- c &= 0x7F;
- /* XXX the ( char isn't handled as part of [] */
- if (c == ' ')
- /* simile for @: plain (..) */
- c = '(' /*)*/;
- }
- }
- if (c == '\0')
- /* No closing ] - act as if the opening [ was quoted */
- return (sub == '[' ? orig_p : NULL);
- if (ISMAGIC(p[0]) && p[1] == '-' &&
- (!ISMAGIC(p[2]) || p[3] != ']')) {
- /* MAGIC- */
- p += 2;
- d = *p++;
- if (ISMAGIC(d)) {
- d = *p++;
- if ((d & 0x80) && !ISMAGIC(d))
- d &= 0x7f;
- }
- /* POSIX says this is an invalid expression */
- if (c > d)
- return (NULL);
- } else
- d = c;
- if (c == sub || (c <= sub && sub <= d))
- found = true;
- } while (!(ISMAGIC(p[0]) && p[1] == ']'));
-
- return ((found != notp) ? p+2 : NULL);
-}
-
-/* Look for next ) or | (if match_sep) in *(foo|bar) pattern */
-static const unsigned char *
-pat_scan(const unsigned char *p, const unsigned char *pe, bool match_sep)
-{
- int nest = 0;
-
- for (; p < pe; p++) {
- if (!ISMAGIC(*p))
- continue;
- if ((*++p == /*(*/ ')' && nest-- == 0) ||
- (*p == '|' && match_sep && nest == 0))
- return (p + 1);
- if ((*p & 0x80) && vstrchr("*+?@! ", *p & 0x7f))
- nest++;
- }
- return (NULL);
-}
-
-int
-xstrcmp(const void *p1, const void *p2)
-{
- return (strcmp(*(const char * const *)p1, *(const char * const *)p2));
-}
-
-/* Initialise a Getopt structure */
-void
-ksh_getopt_reset(Getopt *go, int flags)
-{
- go->optind = 1;
- go->optarg = NULL;
- go->p = 0;
- go->flags = flags;
- go->info = 0;
- go->buf[1] = '\0';
-}
-
-
-/**
- * getopt() used for shell built-in commands, the getopts command, and
- * command line options.
- * A leading ':' in options means don't print errors, instead return '?'
- * or ':' and set go->optarg to the offending option character.
- * If GF_ERROR is set (and option doesn't start with :), errors result in
- * a call to bi_errorf().
- *
- * Non-standard features:
- * - ';' is like ':' in options, except the argument is optional
- * (if it isn't present, optarg is set to 0).
- * Used for 'set -o'.
- * - ',' is like ':' in options, except the argument always immediately
- * follows the option character (optarg is set to the null string if
- * the option is missing).
- * Used for 'read -u2', 'print -u2' and fc -40.
- * - '#' is like ':' in options, expect that the argument is optional
- * and must start with a digit. If the argument doesn't start with a
- * digit, it is assumed to be missing and normal option processing
- * continues (optarg is set to 0 if the option is missing).
- * Used for 'typeset -LZ4'.
- * - accepts +c as well as -c IF the GF_PLUSOPT flag is present. If an
- * option starting with + is accepted, the GI_PLUS flag will be set
- * in go->info.
- */
-int
-ksh_getopt(const char **argv, Getopt *go, const char *optionsp)
-{
- char c;
- const char *o;
-
- if (go->p == 0 || (c = argv[go->optind - 1][go->p]) == '\0') {
- const char *arg = argv[go->optind], flag = arg ? *arg : '\0';
-
- go->p = 1;
- if (flag == '-' && arg[1] == '-' && arg[2] == '\0') {
- go->optind++;
- go->p = 0;
- go->info |= GI_MINUSMINUS;
- return (-1);
- }
- if (arg == NULL ||
- ((flag != '-' ) &&
- /* neither a - nor a + (if + allowed) */
- (!(go->flags & GF_PLUSOPT) || flag != '+')) ||
- (c = arg[1]) == '\0') {
- go->p = 0;
- return (-1);
- }
- go->optind++;
- go->info &= ~(GI_MINUS|GI_PLUS);
- go->info |= flag == '-' ? GI_MINUS : GI_PLUS;
- }
- go->p++;
- if (c == '?' || c == ':' || c == ';' || c == ',' || c == '#' ||
- !(o = cstrchr(optionsp, c))) {
- if (optionsp[0] == ':') {
- go->buf[0] = c;
- go->optarg = go->buf;
- } else {
- warningf(true, "%s%s-%c: %s",
- (go->flags & GF_NONAME) ? "" : argv[0],
- (go->flags & GF_NONAME) ? "" : ": ", c,
- "unknown option");
- if (go->flags & GF_ERROR)
- bi_errorfz();
- }
- return ('?');
- }
- /**
- * : means argument must be present, may be part of option argument
- * or the next argument
- * ; same as : but argument may be missing
- * , means argument is part of option argument, and may be null.
- */
- if (*++o == ':' || *o == ';') {
- if (argv[go->optind - 1][go->p])
- go->optarg = argv[go->optind - 1] + go->p;
- else if (argv[go->optind])
- go->optarg = argv[go->optind++];
- else if (*o == ';')
- go->optarg = NULL;
- else {
- if (optionsp[0] == ':') {
- go->buf[0] = c;
- go->optarg = go->buf;
- return (':');
- }
- warningf(true, "%s%s-%c: %s",
- (go->flags & GF_NONAME) ? "" : argv[0],
- (go->flags & GF_NONAME) ? "" : ": ", c,
- "requires an argument");
- if (go->flags & GF_ERROR)
- bi_errorfz();
- return ('?');
- }
- go->p = 0;
- } else if (*o == ',') {
- /* argument is attached to option character, even if null */
- go->optarg = argv[go->optind - 1] + go->p;
- go->p = 0;
- } else if (*o == '#') {
- /*
- * argument is optional and may be attached or unattached
- * but must start with a digit. optarg is set to 0 if the
- * argument is missing.
- */
- if (argv[go->optind - 1][go->p]) {
- if (ksh_isdigit(argv[go->optind - 1][go->p])) {
- go->optarg = argv[go->optind - 1] + go->p;
- go->p = 0;
- } else
- go->optarg = NULL;
- } else {
- if (argv[go->optind] && ksh_isdigit(argv[go->optind][0])) {
- go->optarg = argv[go->optind++];
- go->p = 0;
- } else
- go->optarg = NULL;
- }
- }
- return (c);
-}
-
-/*
- * print variable/alias value using necessary quotes
- * (POSIX says they should be suitable for re-entry...)
- * No trailing newline is printed.
- */
-void
-print_value_quoted(struct shf *shf, const char *s)
-{
- unsigned char c;
- const unsigned char *p = (const unsigned char *)s;
- bool inquote = true;
-
- /* first, check whether any quotes are needed */
- while ((c = *p++) >= 32)
- if (ctype(c, C_QUOTE))
- inquote = false;
-
- p = (const unsigned char *)s;
- if (c == 0) {
- if (inquote) {
- /* nope, use the shortcut */
- shf_puts(s, shf);
- return;
- }
-
- /* otherwise, quote nicely via state machine */
- while ((c = *p++) != 0) {
- if (c == '\'') {
- /*
- * multiple single quotes or any of them
- * at the beginning of a string look nicer
- * this way than when simply substituting
- */
- if (inquote) {
- shf_putc('\'', shf);
- inquote = false;
- }
- shf_putc('\\', shf);
- } else if (!inquote) {
- shf_putc('\'', shf);
- inquote = true;
- }
- shf_putc(c, shf);
- }
- } else {
- unsigned int wc;
- size_t n;
-
- /* use $'...' quote format */
- shf_putc('$', shf);
- shf_putc('\'', shf);
- while ((c = *p) != 0) {
- if (c >= 0xC2) {
- n = utf_mbtowc(&wc, (const char *)p);
- if (n != (size_t)-1) {
- p += n;
- shf_fprintf(shf, "\\u%04X", wc);
- continue;
- }
- }
- ++p;
- switch (c) {
- /* see unbksl() in this file for comments */
- case 7:
- c = 'a';
- if (0)
- /* FALLTHROUGH */
- case '\b':
- c = 'b';
- if (0)
- /* FALLTHROUGH */
- case '\f':
- c = 'f';
- if (0)
- /* FALLTHROUGH */
- case '\n':
- c = 'n';
- if (0)
- /* FALLTHROUGH */
- case '\r':
- c = 'r';
- if (0)
- /* FALLTHROUGH */
- case '\t':
- c = 't';
- if (0)
- /* FALLTHROUGH */
- case 11:
- c = 'v';
- if (0)
- /* FALLTHROUGH */
- case '\033':
- /* take E not e because \e is \ in *roff */
- c = 'E';
- /* FALLTHROUGH */
- case '\\':
- shf_putc('\\', shf);
-
- if (0)
- /* FALLTHROUGH */
- default:
- if (c < 32 || c > 0x7E) {
- /* FALLTHROUGH */
- case '\'':
- shf_fprintf(shf, "\\%03o", c);
- break;
- }
-
- shf_putc(c, shf);
- break;
- }
- }
- inquote = true;
- }
- if (inquote)
- shf_putc('\'', shf);
-}
-
-/*
- * Print things in columns and rows - func() is called to format
- * the i-th element
- */
-void
-print_columns(struct shf *shf, unsigned int n,
- char *(*func)(char *, size_t, unsigned int, const void *),
- const void *arg, size_t max_oct, size_t max_colz, bool prefcol)
-{
- unsigned int i, r, c, rows, cols, nspace, max_col;
- char *str;
-
- if (!n)
- return;
-
- if (max_colz > 2147483646) {
-#ifndef MKSH_SMALL
- internal_warningf("print_columns called with %s=%zu >= INT_MAX",
- "max_col", max_colz);
-#endif
- return;
- }
- max_col = (unsigned int)max_colz;
-
- if (max_oct > 2147483646) {
-#ifndef MKSH_SMALL
- internal_warningf("print_columns called with %s=%zu >= INT_MAX",
- "max_oct", max_oct);
-#endif
- return;
- }
- ++max_oct;
- str = alloc(max_oct, ATEMP);
-
- /*
- * We use (max_col + 1) to consider the space separator.
- * Note that no space is printed after the last column
- * to avoid problems with terminals that have auto-wrap.
- */
- cols = x_cols / (max_col + 1);
-
- /* if we can only print one column anyway, skip the goo */
- if (cols < 2) {
- for (i = 0; i < n; ++i)
- shf_fprintf(shf, "%s\n",
- (*func)(str, max_oct, i, arg));
- goto out;
- }
-
- rows = (n + cols - 1) / cols;
- if (prefcol && cols > rows) {
- cols = rows;
- rows = (n + cols - 1) / cols;
- }
-
- nspace = (x_cols - max_col * cols) / cols;
- max_col = -max_col;
- if (nspace <= 0)
- nspace = 1;
- for (r = 0; r < rows; r++) {
- for (c = 0; c < cols; c++) {
- i = c * rows + r;
- if (i < n) {
- shf_fprintf(shf, "%*s", max_col,
- (*func)(str, max_oct, i, arg));
- if (c + 1 < cols)
- shf_fprintf(shf, "%*s", nspace, null);
- }
- }
- shf_putchar('\n', shf);
- }
- out:
- afree(str, ATEMP);
-}
-
-/* Strip any nul bytes from buf - returns new length (nbytes - # of nuls) */
-void
-strip_nuls(char *buf, int nbytes)
-{
- char *dst;
-
- /*
- * nbytes check because some systems (older FreeBSDs) have a
- * buggy memchr()
- */
- if (nbytes && (dst = memchr(buf, '\0', nbytes))) {
- char *end = buf + nbytes;
- char *p, *q;
-
- for (p = dst; p < end; p = q) {
- /* skip a block of nulls */
- while (++p < end && *p == '\0')
- ;
- /* find end of non-null block */
- if (!(q = memchr(p, '\0', end - p)))
- q = end;
- memmove(dst, p, q - p);
- dst += q - p;
- }
- *dst = '\0';
- }
-}
-
-/*
- * Like read(2), but if read fails due to non-blocking flag,
- * resets flag and restarts read.
- */
-ssize_t
-blocking_read(int fd, char *buf, size_t nbytes)
-{
- ssize_t ret;
- bool tried_reset = false;
-
- while ((ret = read(fd, buf, nbytes)) < 0) {
- if (!tried_reset && errno == EAGAIN) {
- if (reset_nonblock(fd) > 0) {
- tried_reset = true;
- continue;
- }
- errno = EAGAIN;
- }
- break;
- }
- return (ret);
-}
-
-/*
- * Reset the non-blocking flag on the specified file descriptor.
- * Returns -1 if there was an error, 0 if non-blocking wasn't set,
- * 1 if it was.
- */
-int
-reset_nonblock(int fd)
-{
- int flags;
-
- if ((flags = fcntl(fd, F_GETFL, 0)) < 0)
- return (-1);
- if (!(flags & O_NONBLOCK))
- return (0);
- flags &= ~O_NONBLOCK;
- if (fcntl(fd, F_SETFL, flags) < 0)
- return (-1);
- return (1);
-}
-
-/* getcwd(3) equivalent, allocates from ATEMP but doesn't resize */
-char *
-ksh_get_wd(void)
-{
-#ifdef MKSH__NO_PATH_MAX
- char *rv, *cp;
-
- if ((cp = get_current_dir_name())) {
- strdupx(rv, cp, ATEMP);
- free_gnu_gcdn(cp);
- } else
- rv = NULL;
-#else
- char *rv;
-
- if (!getcwd((rv = alloc(PATH_MAX + 1, ATEMP)), PATH_MAX)) {
- afree(rv, ATEMP);
- rv = NULL;
- }
-#endif
-
- return (rv);
-}
-
-#ifndef ELOOP
-#define ELOOP E2BIG
-#endif
-
-char *
-do_realpath(const char *upath)
-{
- char *xp, *ip, *tp, *ipath, *ldest = NULL;
- XString xs;
- ptrdiff_t pos;
- size_t len;
- int llen;
- struct stat sb;
-#ifdef MKSH__NO_PATH_MAX
- size_t ldestlen = 0;
-#define pathlen sb.st_size
-#define pathcnd (ldestlen < (pathlen + 1))
-#else
-#define pathlen PATH_MAX
-#define pathcnd (!ldest)
-#endif
- /* max. recursion depth */
- int symlinks = 32;
-
- if (upath[0] == '/') {
- /* upath is an absolute pathname */
- strdupx(ipath, upath, ATEMP);
- } else {
- /* upath is a relative pathname, prepend cwd */
- if ((tp = ksh_get_wd()) == NULL || tp[0] != '/')
- return (NULL);
- ipath = shf_smprintf("%s%s%s", tp, "/", upath);
- afree(tp, ATEMP);
- }
-
- /* ipath and upath are in memory at the same time -> unchecked */
- Xinit(xs, xp, strlen(ip = ipath) + 1, ATEMP);
-
- /* now jump into the deep of the loop */
- goto beginning_of_a_pathname;
-
- while (*ip) {
- /* skip slashes in input */
- while (*ip == '/')
- ++ip;
- if (!*ip)
- break;
-
- /* get next pathname component from input */
- tp = ip;
- while (*ip && *ip != '/')
- ++ip;
- len = ip - tp;
-
- /* check input for "." and ".." */
- if (tp[0] == '.') {
- if (len == 1)
- /* just continue with the next one */
- continue;
- else if (len == 2 && tp[1] == '.') {
- /* strip off last pathname component */
- while (xp > Xstring(xs, xp))
- if (*--xp == '/')
- break;
- /* then continue with the next one */
- continue;
- }
- }
-
- /* store output position away, then append slash to output */
- pos = Xsavepos(xs, xp);
- /* 1 for the '/' and len + 1 for tp and the NUL from below */
- XcheckN(xs, xp, 1 + len + 1);
- Xput(xs, xp, '/');
-
- /* append next pathname component to output */
- memcpy(xp, tp, len);
- xp += len;
- *xp = '\0';
-
- /* lstat the current output, see if it's a symlink */
- if (mksh_lstat(Xstring(xs, xp), &sb)) {
- /* lstat failed */
- if (errno == ENOENT) {
- /* because the pathname does not exist */
- while (*ip == '/')
- /* skip any trailing slashes */
- ++ip;
- /* no more components left? */
- if (!*ip)
- /* we can still return successfully */
- break;
- /* more components left? fall through */
- }
- /* not ENOENT or not at the end of ipath */
- goto notfound;
- }
-
- /* check if we encountered a symlink? */
- if (S_ISLNK(sb.st_mode)) {
-#ifndef MKSH__NO_SYMLINK
- /* reached maximum recursion depth? */
- if (!symlinks--) {
- /* yep, prevent infinite loops */
- errno = ELOOP;
- goto notfound;
- }
-
- /* get symlink(7) target */
- if (pathcnd) {
-#ifdef MKSH__NO_PATH_MAX
- if (notoktoadd(pathlen, 1)) {
- errno = ENAMETOOLONG;
- goto notfound;
- }
-#endif
- ldest = aresize(ldest, pathlen + 1, ATEMP);
- }
- llen = readlink(Xstring(xs, xp), ldest, pathlen);
- if (llen < 0)
- /* oops... */
- goto notfound;
- ldest[llen] = '\0';
-
- /*
- * restart if symlink target is an absolute path,
- * otherwise continue with currently resolved prefix
- */
- /* append rest of current input path to link target */
- tp = shf_smprintf("%s%s%s", ldest, *ip ? "/" : "", ip);
- afree(ipath, ATEMP);
- ip = ipath = tp;
- if (ldest[0] != '/') {
- /* symlink target is a relative path */
- xp = Xrestpos(xs, xp, pos);
- } else
-#endif
- {
- /* symlink target is an absolute path */
- xp = Xstring(xs, xp);
- beginning_of_a_pathname:
- /* assert: (ip == ipath)[0] == '/' */
- /* assert: xp == xs.beg => start of path */
-
- /* exactly two leading slashes? (SUSv4 3.266) */
- if (ip[1] == '/' && ip[2] != '/') {
- /* keep them, e.g. for UNC pathnames */
- Xput(xs, xp, '/');
- }
- }
- }
- /* otherwise (no symlink) merely go on */
- }
-
- /*
- * either found the target and successfully resolved it,
- * or found its parent directory and may create it
- */
- if (Xlength(xs, xp) == 0)
- /*
- * if the resolved pathname is "", make it "/",
- * otherwise do not add a trailing slash
- */
- Xput(xs, xp, '/');
- Xput(xs, xp, '\0');
-
- /*
- * if source path had a trailing slash, check if target path
- * is not a non-directory existing file
- */
- if (ip > ipath && ip[-1] == '/') {
- if (stat(Xstring(xs, xp), &sb)) {
- if (errno != ENOENT)
- goto notfound;
- } else if (!S_ISDIR(sb.st_mode)) {
- errno = ENOTDIR;
- goto notfound;
- }
- /* target now either does not exist or is a directory */
- }
-
- /* return target path */
- if (ldest != NULL)
- afree(ldest, ATEMP);
- afree(ipath, ATEMP);
- return (Xclose(xs, xp));
-
- notfound:
- /* save; freeing memory might trash it */
- llen = errno;
- if (ldest != NULL)
- afree(ldest, ATEMP);
- afree(ipath, ATEMP);
- Xfree(xs, xp);
- errno = llen;
- return (NULL);
-
-#undef pathlen
-#undef pathcnd
-}
-
-/**
- * Makes a filename into result using the following algorithm.
- * - make result NULL
- * - if file starts with '/', append file to result & set cdpathp to NULL
- * - if file starts with ./ or ../ append cwd and file to result
- * and set cdpathp to NULL
- * - if the first element of cdpathp doesnt start with a '/' xx or '.' xx
- * then cwd is appended to result.
- * - the first element of cdpathp is appended to result
- * - file is appended to result
- * - cdpathp is set to the start of the next element in cdpathp (or NULL
- * if there are no more elements.
- * The return value indicates whether a non-null element from cdpathp
- * was appended to result.
- */
-static int
-make_path(const char *cwd, const char *file,
- /* pointer to colon-separated list */
- char **cdpathp,
- XString *xsp,
- int *phys_pathp)
-{
- int rval = 0;
- bool use_cdpath = true;
- char *plist;
- size_t len, plen = 0;
- char *xp = Xstring(*xsp, xp);
-
- if (!file)
- file = null;
-
- if (file[0] == '/') {
- *phys_pathp = 0;
- use_cdpath = false;
- } else {
- if (file[0] == '.') {
- char c = file[1];
-
- if (c == '.')
- c = file[2];
- if (c == '/' || c == '\0')
- use_cdpath = false;
- }
-
- plist = *cdpathp;
- if (!plist)
- use_cdpath = false;
- else if (use_cdpath) {
- char *pend;
-
- for (pend = plist; *pend && *pend != ':'; pend++)
- ;
- plen = pend - plist;
- *cdpathp = *pend ? pend + 1 : NULL;
- }
-
- if ((!use_cdpath || !plen || plist[0] != '/') &&
- (cwd && *cwd)) {
- len = strlen(cwd);
- XcheckN(*xsp, xp, len);
- memcpy(xp, cwd, len);
- xp += len;
- if (cwd[len - 1] != '/')
- Xput(*xsp, xp, '/');
- }
- *phys_pathp = Xlength(*xsp, xp);
- if (use_cdpath && plen) {
- XcheckN(*xsp, xp, plen);
- memcpy(xp, plist, plen);
- xp += plen;
- if (plist[plen - 1] != '/')
- Xput(*xsp, xp, '/');
- rval = 1;
- }
- }
-
- len = strlen(file) + 1;
- XcheckN(*xsp, xp, len);
- memcpy(xp, file, len);
-
- if (!use_cdpath)
- *cdpathp = NULL;
-
- return (rval);
-}
-
-/*-
- * Simplify pathnames containing "." and ".." entries.
- *
- * simplify_path(this) = that
- * /a/b/c/./../d/.. /a/b
- * //./C/foo/bar/../baz //C/foo/baz
- * /foo/ /foo
- * /foo/../../bar /bar
- * /foo/./blah/.. /foo
- * . .
- * .. ..
- * ./foo foo
- * foo/../../../bar ../../bar
- */
-void
-simplify_path(char *p)
-{
- char *dp, *ip, *sp, *tp;
- size_t len;
- bool needslash;
-
- switch (*p) {
- case 0:
- return;
- case '/':
- /* exactly two leading slashes? (SUSv4 3.266) */
- if (p[1] == '/' && p[2] != '/')
- /* keep them, e.g. for UNC pathnames */
- ++p;
- needslash = true;
- break;
- default:
- needslash = false;
- }
- dp = ip = sp = p;
-
- while (*ip) {
- /* skip slashes in input */
- while (*ip == '/')
- ++ip;
- if (!*ip)
- break;
-
- /* get next pathname component from input */
- tp = ip;
- while (*ip && *ip != '/')
- ++ip;
- len = ip - tp;
-
- /* check input for "." and ".." */
- if (tp[0] == '.') {
- if (len == 1)
- /* just continue with the next one */
- continue;
- else if (len == 2 && tp[1] == '.') {
- /* parent level, but how? */
- if (*p == '/')
- /* absolute path, only one way */
- goto strip_last_component;
- else if (dp > sp) {
- /* relative path, with subpaths */
- needslash = false;
- strip_last_component:
- /* strip off last pathname component */
- while (dp > sp)
- if (*--dp == '/')
- break;
- } else {
- /* relative path, at its beginning */
- if (needslash)
- /* or already dotdot-slash'd */
- *dp++ = '/';
- /* keep dotdot-slash if not absolute */
- *dp++ = '.';
- *dp++ = '.';
- needslash = true;
- sp = dp;
- }
- /* then continue with the next one */
- continue;
- }
- }
-
- if (needslash)
- *dp++ = '/';
-
- /* append next pathname component to output */
- memmove(dp, tp, len);
- dp += len;
-
- /* append slash if we continue */
- needslash = true;
- /* try next component */
- }
- if (dp == p)
- /* empty path -> dot */
- *dp++ = needslash ? '/' : '.';
- *dp = '\0';
-}
-
-void
-set_current_wd(const char *nwd)
-{
- char *allocd = NULL;
-
- if (nwd == NULL) {
- allocd = ksh_get_wd();
- nwd = allocd ? allocd : null;
- }
-
- afree(current_wd, APERM);
- strdupx(current_wd, nwd, APERM);
-
- afree(allocd, ATEMP);
-}
-
-int
-c_cd(const char **wp)
-{
- int optc, rv, phys_path;
- bool physical = tobool(Flag(FPHYSICAL));
- /* was a node from cdpath added in? */
- int cdnode;
- /* show where we went?, error for $PWD */
- bool printpath = false, eflag = false;
- struct tbl *pwd_s, *oldpwd_s;
- XString xs;
- char *dir, *allocd = NULL, *tryp, *pwd, *cdpath;
-
- while ((optc = ksh_getopt(wp, &builtin_opt, "eLP")) != -1)
- switch (optc) {
- case 'e':
- eflag = true;
- break;
- case 'L':
- physical = false;
- break;
- case 'P':
- physical = true;
- break;
- case '?':
- return (2);
- }
- wp += builtin_opt.optind;
-
- if (Flag(FRESTRICTED)) {
- bi_errorf("restricted shell - can't cd");
- return (2);
- }
-
- pwd_s = global("PWD");
- oldpwd_s = global("OLDPWD");
-
- if (!wp[0]) {
- /* No arguments - go home */
- if ((dir = str_val(global("HOME"))) == null) {
- bi_errorf("no home directory (HOME not set)");
- return (2);
- }
- } else if (!wp[1]) {
- /* One argument: - or dir */
- strdupx(allocd, wp[0], ATEMP);
- if (ksh_isdash((dir = allocd))) {
- afree(allocd, ATEMP);
- allocd = NULL;
- dir = str_val(oldpwd_s);
- if (dir == null) {
- bi_errorf("no OLDPWD");
- return (2);
- }
- printpath = true;
- }
- } else if (!wp[2]) {
- /* Two arguments - substitute arg1 in PWD for arg2 */
- size_t ilen, olen, nlen, elen;
- char *cp;
-
- if (!current_wd[0]) {
- bi_errorf("can't determine current directory");
- return (2);
- }
- /*
- * substitute arg1 for arg2 in current path.
- * if the first substitution fails because the cd fails
- * we could try to find another substitution. For now
- * we don't
- */
- if ((cp = strstr(current_wd, wp[0])) == NULL) {
- bi_errorf("bad substitution");
- return (2);
- }
- /*-
- * ilen = part of current_wd before wp[0]
- * elen = part of current_wd after wp[0]
- * because current_wd and wp[1] need to be in memory at the
- * same time beforehand the addition can stay unchecked
- */
- ilen = cp - current_wd;
- olen = strlen(wp[0]);
- nlen = strlen(wp[1]);
- elen = strlen(current_wd + ilen + olen) + 1;
- dir = allocd = alloc(ilen + nlen + elen, ATEMP);
- memcpy(dir, current_wd, ilen);
- memcpy(dir + ilen, wp[1], nlen);
- memcpy(dir + ilen + nlen, current_wd + ilen + olen, elen);
- printpath = true;
- } else {
- bi_errorf("too many arguments");
- return (2);
- }
-
-#ifdef MKSH__NO_PATH_MAX
- /* only a first guess; make_path will enlarge xs if necessary */
- XinitN(xs, 1024, ATEMP);
-#else
- XinitN(xs, PATH_MAX, ATEMP);
-#endif
-
- cdpath = str_val(global("CDPATH"));
- do {
- cdnode = make_path(current_wd, dir, &cdpath, &xs, &phys_path);
- if (physical)
- rv = chdir(tryp = Xstring(xs, xp) + phys_path);
- else {
- simplify_path(Xstring(xs, xp));
- rv = chdir(tryp = Xstring(xs, xp));
- }
- } while (rv < 0 && cdpath != NULL);
-
- if (rv < 0) {
- if (cdnode)
- bi_errorf("%s: %s", dir, "bad directory");
- else
- bi_errorf("%s: %s", tryp, cstrerror(errno));
- afree(allocd, ATEMP);
- Xfree(xs, xp);
- return (2);
- }
-
- rv = 0;
-
- /* allocd (above) => dir, which is no longer used */
- afree(allocd, ATEMP);
- allocd = NULL;
-
- /* Clear out tracked aliases with relative paths */
- flushcom(false);
-
- /*
- * Set OLDPWD (note: unsetting OLDPWD does not disable this
- * setting in AT&T ksh)
- */
- if (current_wd[0])
- /* Ignore failure (happens if readonly or integer) */
- setstr(oldpwd_s, current_wd, KSH_RETURN_ERROR);
-
- if (Xstring(xs, xp)[0] != '/') {
- pwd = NULL;
- } else if (!physical) {
- goto norealpath_PWD;
- } else if ((pwd = allocd = do_realpath(Xstring(xs, xp))) == NULL) {
- if (eflag)
- rv = 1;
- norealpath_PWD:
- pwd = Xstring(xs, xp);
- }
-
- /* Set PWD */
- if (pwd) {
- char *ptmp = pwd;
-
- set_current_wd(ptmp);
- /* Ignore failure (happens if readonly or integer) */
- setstr(pwd_s, ptmp, KSH_RETURN_ERROR);
- } else {
- set_current_wd(null);
- pwd = Xstring(xs, xp);
- /* XXX unset $PWD? */
- if (eflag)
- rv = 1;
- }
- if (printpath || cdnode)
- shprintf("%s\n", pwd);
-
- afree(allocd, ATEMP);
- Xfree(xs, xp);
- return (rv);
-}
-
-
-#ifdef KSH_CHVT_CODE
-extern uint32_t chvt_rndsetup(const void *, size_t);
-extern void chvt_reinit(void);
-
-static void
-chvt(const Getopt *go)
-{
- const char *dv = go->optarg;
- char *cp = NULL;
- int fd;
-
- switch (*dv) {
- case '-':
- dv = "/dev/null";
- break;
- case '!':
- ++dv;
- /* FALLTHROUGH */
- default: {
- struct stat sb;
-
- if (stat(dv, &sb)) {
- cp = shf_smprintf("/dev/ttyC%s", dv);
- dv = cp;
- if (stat(dv, &sb)) {
- memmove(cp + 1, cp, /* /dev/tty */ 8);
- dv = cp + 1;
- if (stat(dv, &sb)) {
- errorf("%s: %s: %s", "chvt",
- "can't find tty", go->optarg);
- }
- }
- }
- if (!(sb.st_mode & S_IFCHR))
- errorf("%s: %s: %s", "chvt", "not a char device", dv);
-#ifndef MKSH_DISABLE_REVOKE_WARNING
-#if HAVE_REVOKE
- if (revoke(dv))
-#endif
- warningf(false, "%s: %s %s", "chvt",
- "new shell is potentially insecure, can't revoke",
- dv);
-#endif
- }
- }
- if ((fd = open(dv, O_RDWR)) < 0) {
- sleep(1);
- if ((fd = open(dv, O_RDWR)) < 0) {
- errorf("%s: %s %s", "chvt", "can't open", dv);
- }
- }
- if (go->optarg[0] != '!') {
- switch (fork()) {
- case -1:
- errorf("%s: %s %s", "chvt", "fork", "failed");
- case 0:
- break;
- default:
- exit(0);
- }
- }
- if (setsid() == -1)
- errorf("%s: %s %s", "chvt", "setsid", "failed");
- if (go->optarg[0] != '-') {
- if (ioctl(fd, TIOCSCTTY, NULL) == -1)
- errorf("%s: %s %s", "chvt", "TIOCSCTTY", "failed");
- if (tcflush(fd, TCIOFLUSH))
- errorf("%s: %s %s", "chvt", "TCIOFLUSH", "failed");
- }
- ksh_dup2(fd, 0, false);
- ksh_dup2(fd, 1, false);
- ksh_dup2(fd, 2, false);
- if (fd > 2)
- close(fd);
- rndset((unsigned long)chvt_rndsetup(go, sizeof(Getopt)));
- chvt_reinit();
-}
-#endif
-
-#ifdef DEBUG
-char *
-strchr(char *p, int ch)
-{
- for (;; ++p) {
- if (*p == ch)
- return (p);
- if (!*p)
- return (NULL);
- }
- /* NOTREACHED */
-}
-
-char *
-strstr(char *b, const char *l)
-{
- char first, c;
- size_t n;
-
- if ((first = *l++) == '\0')
- return (b);
- n = strlen(l);
- strstr_look:
- while ((c = *b++) != first)
- if (c == '\0')
- return (NULL);
- if (strncmp(b, l, n))
- goto strstr_look;
- return (b - 1);
-}
-#endif
-
-#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
-char *
-strndup_i(const char *src, size_t len, Area *ap)
-{
- char *dst = NULL;
-
- if (src != NULL) {
- dst = alloc(len + 1, ap);
- memcpy(dst, src, len);
- dst[len] = '\0';
- }
- return (dst);
-}
-
-char *
-strdup_i(const char *src, Area *ap)
-{
- return (src == NULL ? NULL : strndup_i(src, strlen(src), ap));
-}
-#endif
-
-#if !HAVE_GETRUSAGE
-#define INVTCK(r,t) do { \
- r.tv_usec = ((t) % (1000000 / CLK_TCK)) * (1000000 / CLK_TCK); \
- r.tv_sec = (t) / CLK_TCK; \
-} while (/* CONSTCOND */ 0)
-
-int
-getrusage(int what, struct rusage *ru)
-{
- struct tms tms;
- clock_t u, s;
-
- if (/* ru == NULL || */ times(&tms) == (clock_t)-1)
- return (-1);
-
- switch (what) {
- case RUSAGE_SELF:
- u = tms.tms_utime;
- s = tms.tms_stime;
- break;
- case RUSAGE_CHILDREN:
- u = tms.tms_cutime;
- s = tms.tms_cstime;
- break;
- default:
- errno = EINVAL;
- return (-1);
- }
- INVTCK(ru->ru_utime, u);
- INVTCK(ru->ru_stime, s);
- return (0);
-}
-#endif
-
-/*
- * process the string available via fg (get a char)
- * and fp (put back a char) for backslash escapes,
- * assuming the first call to *fg gets the char di-
- * rectly after the backslash; return the character
- * (0..0xFF), Unicode (wc + 0x100), or -1 if no known
- * escape sequence was found
- */
-int
-unbksl(bool cstyle, int (*fg)(void), void (*fp)(int))
-{
- int wc, i, c, fc;
-
- fc = (*fg)();
- switch (fc) {
- case 'a':
- /*
- * according to the comments in pdksh, \007 seems
- * to be more portable than \a (due to HP-UX cc,
- * Ultrix cc, old pcc, etc.) so we avoid the escape
- * sequence altogether in mksh and assume ASCII
- */
- wc = 7;
- break;
- case 'b':
- wc = '\b';
- break;
- case 'c':
- if (!cstyle)
- goto unknown_escape;
- c = (*fg)();
- wc = CTRL(c);
- break;
- case 'E':
- case 'e':
- wc = 033;
- break;
- case 'f':
- wc = '\f';
- break;
- case 'n':
- wc = '\n';
- break;
- case 'r':
- wc = '\r';
- break;
- case 't':
- wc = '\t';
- break;
- case 'v':
- /* assume ASCII here as well */
- wc = 11;
- break;
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- if (!cstyle)
- goto unknown_escape;
- /* FALLTHROUGH */
- case '0':
- if (cstyle)
- (*fp)(fc);
- /*
- * look for an octal number with up to three
- * digits, not counting the leading zero;
- * convert it to a raw octet
- */
- wc = 0;
- i = 3;
- while (i--)
- if ((c = (*fg)()) >= '0' && c <= '7')
- wc = (wc << 3) + (c - '0');
- else {
- (*fp)(c);
- break;
- }
- break;
- case 'U':
- i = 8;
- if (/* CONSTCOND */ 0)
- /* FALLTHROUGH */
- case 'u':
- i = 4;
- if (/* CONSTCOND */ 0)
- /* FALLTHROUGH */
- case 'x':
- i = cstyle ? -1 : 2;
- /**
- * x: look for a hexadecimal number with up to
- * two (C style: arbitrary) digits; convert
- * to raw octet (C style: Unicode if >0xFF)
- * u/U: look for a hexadecimal number with up to
- * four (U: eight) digits; convert to Unicode
- */
- wc = 0;
- while (i--) {
- wc <<= 4;
- if ((c = (*fg)()) >= '0' && c <= '9')
- wc += c - '0';
- else if (c >= 'A' && c <= 'F')
- wc += c - 'A' + 10;
- else if (c >= 'a' && c <= 'f')
- wc += c - 'a' + 10;
- else {
- wc >>= 4;
- (*fp)(c);
- break;
- }
- }
- if ((cstyle && wc > 0xFF) || fc != 'x')
- /* Unicode marker */
- wc += 0x100;
- break;
- case '\'':
- if (!cstyle)
- goto unknown_escape;
- wc = '\'';
- break;
- case '\\':
- wc = '\\';
- break;
- default:
- unknown_escape:
- (*fp)(fc);
- return (-1);
- }
-
- return (wc);
-}
Copied: vendor/MirOS/mksh/R50/misc.c (from rev 6707, vendor/MirOS/mksh/dist/misc.c)
===================================================================
--- vendor/MirOS/mksh/R50/misc.c (rev 0)
+++ vendor/MirOS/mksh/R50/misc.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,2252 @@
+/* $OpenBSD: misc.c,v 1.38 2013/11/28 10:33:37 sobrado Exp $ */
+/* $OpenBSD: path.c,v 1.12 2005/03/30 17:16:37 deraadt Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+#if !HAVE_GETRUSAGE
+#include <sys/times.h>
+#endif
+#if HAVE_GRP_H
+#include <grp.h>
+#endif
+
+__RCSID("$MirOS: src/bin/mksh/misc.c,v 1.219 2014/01/05 21:57:27 tg Exp $");
+
+#define KSH_CHVT_FLAG
+#ifdef MKSH_SMALL
+#undef KSH_CHVT_FLAG
+#endif
+#ifdef TIOCSCTTY
+#define KSH_CHVT_CODE
+#define KSH_CHVT_FLAG
+#endif
+#ifdef MKSH_LEGACY_MODE
+#undef KSH_CHVT_CODE
+#undef KSH_CHVT_FLAG
+#endif
+
+/* type bits for unsigned char */
+unsigned char chtypes[UCHAR_MAX + 1];
+
+static const unsigned char *pat_scan(const unsigned char *,
+ const unsigned char *, bool) MKSH_A_PURE;
+static int do_gmatch(const unsigned char *, const unsigned char *,
+ const unsigned char *, const unsigned char *) MKSH_A_PURE;
+static const unsigned char *cclass(const unsigned char *, unsigned char)
+ MKSH_A_PURE;
+#ifdef KSH_CHVT_CODE
+static void chvt(const Getopt *);
+#endif
+
+/*XXX this should go away */
+static int make_path(const char *, const char *, char **, XString *, int *);
+
+#ifdef SETUID_CAN_FAIL_WITH_EAGAIN
+/* we don't need to check for other codes, EPERM won't happen */
+#define DO_SETUID(func, argvec) do { \
+ if ((func argvec) && errno == EAGAIN) \
+ errorf("%s failed with EAGAIN, probably due to a" \
+ " too low process limit; aborting", #func); \
+} while (/* CONSTCOND */ 0)
+#else
+#define DO_SETUID(func, argvec) func argvec
+#endif
+
+/*
+ * Fast character classes
+ */
+void
+setctypes(const char *s, int t)
+{
+ unsigned int i;
+
+ if (t & C_IFS) {
+ for (i = 0; i < UCHAR_MAX + 1; i++)
+ chtypes[i] &= ~C_IFS;
+ /* include \0 in C_IFS */
+ chtypes[0] |= C_IFS;
+ }
+ while (*s != 0)
+ chtypes[(unsigned char)*s++] |= t;
+}
+
+void
+initctypes(void)
+{
+ int c;
+
+ for (c = 'a'; c <= 'z'; c++)
+ chtypes[c] |= C_ALPHA;
+ for (c = 'A'; c <= 'Z'; c++)
+ chtypes[c] |= C_ALPHA;
+ chtypes['_'] |= C_ALPHA;
+ setctypes("0123456789", C_DIGIT);
+ /* \0 added automatically */
+ setctypes(TC_LEX1, C_LEX1);
+ setctypes("*@#!$-?", C_VAR1);
+ setctypes(TC_IFSWS, C_IFSWS);
+ setctypes("=-+?", C_SUBOP1);
+ setctypes("\t\n \"#$&'()*;<=>?[\\]`|", C_QUOTE);
+}
+
+/* called from XcheckN() to grow buffer */
+char *
+Xcheck_grow(XString *xsp, const char *xp, size_t more)
+{
+ const char *old_beg = xsp->beg;
+
+ if (more < xsp->len)
+ more = xsp->len;
+ /* (xsp->len + X_EXTRA) never overflows */
+ checkoktoadd(more, xsp->len + X_EXTRA);
+ xsp->beg = aresize(xsp->beg, (xsp->len += more) + X_EXTRA, xsp->areap);
+ xsp->end = xsp->beg + xsp->len;
+ return (xsp->beg + (xp - old_beg));
+}
+
+
+#define SHFLAGS_DEFNS
+#include "sh_flags.gen"
+
+#define OFC(i) (options[i][-2])
+#define OFF(i) (((const unsigned char *)options[i])[-1])
+#define OFN(i) (options[i])
+
+const char * const options[] = {
+#define SHFLAGS_ITEMS
+#include "sh_flags.gen"
+};
+
+/*
+ * translate -o option into F* constant (also used for test -o option)
+ */
+size_t
+option(const char *n)
+{
+ size_t i = 0;
+
+ if ((n[0] == '-' || n[0] == '+') && n[1] && !n[2])
+ while (i < NELEM(options)) {
+ if (OFC(i) == n[1])
+ return (i);
+ ++i;
+ }
+ else
+ while (i < NELEM(options)) {
+ if (!strcmp(OFN(i), n))
+ return (i);
+ ++i;
+ }
+
+ return ((size_t)-1);
+}
+
+struct options_info {
+ int opt_width;
+ int opts[NELEM(options)];
+};
+
+static char *options_fmt_entry(char *, size_t, unsigned int, const void *);
+static void printoptions(bool);
+
+/* format a single select menu item */
+static char *
+options_fmt_entry(char *buf, size_t buflen, unsigned int i, const void *arg)
+{
+ const struct options_info *oi = (const struct options_info *)arg;
+
+ shf_snprintf(buf, buflen, "%-*s %s",
+ oi->opt_width, OFN(oi->opts[i]),
+ Flag(oi->opts[i]) ? "on" : "off");
+ return (buf);
+}
+
+static void
+printoptions(bool verbose)
+{
+ size_t i = 0;
+
+ if (verbose) {
+ size_t n = 0, len, octs = 0;
+ struct options_info oi;
+
+ /* verbose version */
+ shf_puts("Current option settings\n", shl_stdout);
+
+ oi.opt_width = 0;
+ while (i < NELEM(options)) {
+ if ((len = strlen(OFN(i)))) {
+ oi.opts[n++] = i;
+ if (len > octs)
+ octs = len;
+ len = utf_mbswidth(OFN(i));
+ if ((int)len > oi.opt_width)
+ oi.opt_width = (int)len;
+ }
+ ++i;
+ }
+ print_columns(shl_stdout, n, options_fmt_entry, &oi,
+ octs + 4, oi.opt_width + 4, true);
+ } else {
+ /* short version like AT&T ksh93 */
+ shf_puts(Tset, shl_stdout);
+ while (i < NELEM(options)) {
+ if (Flag(i) && OFN(i)[0])
+ shprintf(" -o %s", OFN(i));
+ ++i;
+ }
+ shf_putc('\n', shl_stdout);
+ }
+}
+
+char *
+getoptions(void)
+{
+ size_t i = 0;
+ char c, m[(int)FNFLAGS + 1];
+ char *cp = m;
+
+ while (i < NELEM(options)) {
+ if ((c = OFC(i)) && Flag(i))
+ *cp++ = c;
+ ++i;
+ }
+ strndupx(cp, m, cp - m, ATEMP);
+ return (cp);
+}
+
+/* change a Flag(*) value; takes care of special actions */
+void
+change_flag(enum sh_flag f, int what, bool newset)
+{
+ unsigned char oldval;
+ unsigned char newval = (newset ? 1 : 0);
+
+ if (f == FXTRACE) {
+ change_xtrace(newval, true);
+ return;
+ }
+ oldval = Flag(f);
+ Flag(f) = newval = (newset ? 1 : 0);
+#ifndef MKSH_UNEMPLOYED
+ if (f == FMONITOR) {
+ if (what != OF_CMDLINE && newval != oldval)
+ j_change();
+ } else
+#endif
+#ifndef MKSH_NO_CMDLINE_EDITING
+ if ((
+#if !MKSH_S_NOVI
+ f == FVI ||
+#endif
+ f == FEMACS || f == FGMACS) && newval) {
+#if !MKSH_S_NOVI
+ Flag(FVI) =
+#endif
+ Flag(FEMACS) = Flag(FGMACS) = 0;
+ Flag(f) = newval;
+ } else
+#endif
+ if (f == FPRIVILEGED && oldval && !newval) {
+ /* Turning off -p? */
+
+ /*XXX this can probably be optimised */
+ kshegid = kshgid = getgid();
+ ksheuid = kshuid = getuid();
+#if HAVE_SETRESUGID
+ DO_SETUID(setresgid, (kshegid, kshegid, kshegid));
+#if HAVE_SETGROUPS
+ /* setgroups doesn't EAGAIN on Linux */
+ setgroups(1, &kshegid);
+#endif
+ DO_SETUID(setresuid, (ksheuid, ksheuid, ksheuid));
+#else /* !HAVE_SETRESUGID */
+ /* seteuid, setegid, setgid don't EAGAIN on Linux */
+#ifndef MKSH__NO_SETEUGID
+ seteuid(ksheuid);
+#endif
+ DO_SETUID(setuid, (ksheuid));
+#ifndef MKSH__NO_SETEUGID
+ setegid(kshegid);
+#endif
+ setgid(kshegid);
+#endif /* !HAVE_SETRESUGID */
+ } else if ((f == FPOSIX || f == FSH) && newval) {
+ /* Turning on -o posix or -o sh? */
+ Flag(FBRACEEXPAND) = 0;
+ } else if (f == FTALKING) {
+ /* Changing interactive flag? */
+ if ((what == OF_CMDLINE || what == OF_SET) && procpid == kshpid)
+ Flag(FTALKING_I) = newval;
+ }
+}
+
+void
+change_xtrace(unsigned char newval, bool dosnapshot)
+{
+ if (!dosnapshot && newval == Flag(FXTRACE))
+ return;
+
+ if (Flag(FXTRACE) == 2) {
+ shf_putc('\n', shl_xtrace);
+ Flag(FXTRACE) = 1;
+ shf_flush(shl_xtrace);
+ }
+
+ if (!dosnapshot && Flag(FXTRACE) == 1)
+ switch (newval) {
+ case 1:
+ return;
+ case 2:
+ goto changed_xtrace;
+ }
+
+ shf_flush(shl_xtrace);
+ if (shl_xtrace->fd != 2)
+ close(shl_xtrace->fd);
+ if (!newval || (shl_xtrace->fd = savefd(2)) == -1)
+ shl_xtrace->fd = 2;
+
+ changed_xtrace:
+ if ((Flag(FXTRACE) = newval) == 2)
+ shf_puts(substitute(str_val(global("PS4")), 0), shl_xtrace);
+}
+
+/*
+ * Parse command line and set command arguments. Returns the index of
+ * non-option arguments, -1 if there is an error.
+ */
+int
+parse_args(const char **argv,
+ /* OF_CMDLINE or OF_SET */
+ int what,
+ bool *setargsp)
+{
+ static const char cmd_opts[] =
+#define SHFLAGS_NOT_SET
+#define SHFLAGS_OPTCS
+#include "sh_flags.gen"
+#undef SHFLAGS_NOT_SET
+ ;
+ static const char set_opts[] =
+#define SHFLAGS_NOT_CMD
+#define SHFLAGS_OPTCS
+#include "sh_flags.gen"
+#undef SHFLAGS_NOT_CMD
+ ;
+ bool set;
+ const char *opts;
+ const char *array = NULL;
+ Getopt go;
+ size_t i;
+ int optc, arrayset = 0;
+ bool sortargs = false;
+ bool fcompatseen = false;
+
+ if (what == OF_CMDLINE) {
+ const char *p = argv[0], *q;
+ /*
+ * Set FLOGIN before parsing options so user can clear
+ * flag using +l.
+ */
+ if (*p != '-')
+ for (q = p; *q; )
+ if (*q++ == '/')
+ p = q;
+ Flag(FLOGIN) = (*p == '-');
+ opts = cmd_opts;
+ } else if (what == OF_FIRSTTIME) {
+ opts = cmd_opts;
+ } else
+ opts = set_opts;
+ ksh_getopt_reset(&go, GF_ERROR|GF_PLUSOPT);
+ while ((optc = ksh_getopt(argv, &go, opts)) != -1) {
+ set = tobool(!(go.info & GI_PLUS));
+ switch (optc) {
+ case 'A':
+ if (what == OF_FIRSTTIME)
+ break;
+ arrayset = set ? 1 : -1;
+ array = go.optarg;
+ break;
+
+ case 'o':
+ if (what == OF_FIRSTTIME)
+ break;
+ if (go.optarg == NULL) {
+ /*
+ * lone -o: print options
+ *
+ * Note that on the command line, -o requires
+ * an option (ie, can't get here if what is
+ * OF_CMDLINE).
+ */
+ printoptions(set);
+ break;
+ }
+ i = option(go.optarg);
+ if ((i == FPOSIX || i == FSH) && set && !fcompatseen) {
+ /*
+ * If running 'set -o posix' or
+ * 'set -o sh', turn off the other;
+ * if running 'set -o posix -o sh'
+ * allow both to be set though.
+ */
+ Flag(FPOSIX) = 0;
+ Flag(FSH) = 0;
+ fcompatseen = true;
+ }
+ if ((i != (size_t)-1) && (set ? 1U : 0U) == Flag(i))
+ /*
+ * Don't check the context if the flag
+ * isn't changing - makes "set -o interactive"
+ * work if you're already interactive. Needed
+ * if the output of "set +o" is to be used.
+ */
+ ;
+ else if ((i != (size_t)-1) && (OFF(i) & what))
+ change_flag((enum sh_flag)i, what, set);
+ else {
+ bi_errorf("%s: %s", go.optarg, "bad option");
+ return (-1);
+ }
+ break;
+
+#ifdef KSH_CHVT_FLAG
+ case 'T':
+ if (what != OF_FIRSTTIME)
+ break;
+#ifndef KSH_CHVT_CODE
+ errorf("no TIOCSCTTY ioctl");
+#else
+ change_flag(FTALKING, OF_CMDLINE, true);
+ chvt(&go);
+ break;
+#endif
+#endif
+
+ case '?':
+ return (-1);
+
+ default:
+ if (what == OF_FIRSTTIME)
+ break;
+ /* -s: sort positional params (AT&T ksh stupidity) */
+ if (what == OF_SET && optc == 's') {
+ sortargs = true;
+ break;
+ }
+ for (i = 0; i < NELEM(options); i++)
+ if (optc == OFC(i) &&
+ (what & OFF(i))) {
+ change_flag((enum sh_flag)i, what, set);
+ break;
+ }
+ if (i == NELEM(options))
+ internal_errorf("parse_args: '%c'", optc);
+ }
+ }
+ if (!(go.info & GI_MINUSMINUS) && argv[go.optind] &&
+ (argv[go.optind][0] == '-' || argv[go.optind][0] == '+') &&
+ argv[go.optind][1] == '\0') {
+ /* lone - clears -v and -x flags */
+ if (argv[go.optind][0] == '-') {
+ Flag(FVERBOSE) = 0;
+ change_xtrace(0, false);
+ }
+ /* set skips lone - or + option */
+ go.optind++;
+ }
+ if (setargsp)
+ /* -- means set $#/$* even if there are no arguments */
+ *setargsp = !arrayset && ((go.info & GI_MINUSMINUS) ||
+ argv[go.optind]);
+
+ if (arrayset) {
+ const char *ccp = NULL;
+
+ mkssert(array != NULL);
+ if (*array)
+ ccp = skip_varname(array, false);
+ if (!ccp || !(!ccp[0] || (ccp[0] == '+' && !ccp[1]))) {
+ bi_errorf("%s: %s", array, "is not an identifier");
+ return (-1);
+ }
+ }
+ if (sortargs) {
+ for (i = go.optind; argv[i]; i++)
+ ;
+ qsort(&argv[go.optind], i - go.optind, sizeof(void *),
+ xstrcmp);
+ }
+ if (arrayset)
+ go.optind += set_array(array, tobool(arrayset > 0),
+ argv + go.optind);
+
+ return (go.optind);
+}
+
+/* parse a decimal number: returns 0 if string isn't a number, 1 otherwise */
+int
+getn(const char *s, int *ai)
+{
+ char c;
+ mksh_ari_u num;
+ bool neg = false;
+
+ num.u = 0;
+
+ do {
+ c = *s++;
+ } while (ksh_isspace(c));
+
+ switch (c) {
+ case '-':
+ neg = true;
+ /* FALLTHROUGH */
+ case '+':
+ c = *s++;
+ break;
+ }
+
+ do {
+ if (!ksh_isdigit(c))
+ /* not numeric */
+ return (0);
+ if (num.u > 214748364U)
+ /* overflow on multiplication */
+ return (0);
+ num.u = num.u * 10U + (unsigned int)(c - '0');
+ /* now: num.u <= 2147483649U */
+ } while ((c = *s++));
+
+ if (num.u > (neg ? 2147483648U : 2147483647U))
+ /* overflow for signed 32-bit int */
+ return (0);
+
+ if (neg)
+ num.u = -num.u;
+ *ai = num.i;
+ return (1);
+}
+
+/**
+ * pattern simplifications:
+ * - @(x) -> x (not @(x|y) though)
+ * - ** -> *
+ */
+static void *
+simplify_gmatch_pattern(const unsigned char *sp)
+{
+ uint8_t c;
+ unsigned char *cp, *dp;
+ const unsigned char *ps, *se;
+
+ cp = alloc(strlen((const void *)sp) + 1, ATEMP);
+ goto simplify_gmatch_pat1a;
+
+ /* foo@(b@(a)r)b@(a|a)z -> foobarb@(a|a)z */
+ simplify_gmatch_pat1:
+ sp = cp;
+ simplify_gmatch_pat1a:
+ dp = cp;
+ se = sp + strlen((const void *)sp);
+ while ((c = *sp++)) {
+ if (!ISMAGIC(c)) {
+ *dp++ = c;
+ continue;
+ }
+ switch ((c = *sp++)) {
+ case 0x80|'@':
+ /* simile for @ */
+ case 0x80|' ':
+ /* check whether it has only one clause */
+ ps = pat_scan(sp, se, true);
+ if (!ps || ps[-1] != /*(*/ ')')
+ /* nope */
+ break;
+ /* copy inner clause until matching close */
+ ps -= 2;
+ while ((const unsigned char *)sp < ps)
+ *dp++ = *sp++;
+ /* skip MAGIC and closing parenthesis */
+ sp += 2;
+ /* copy the rest of the pattern */
+ memmove(dp, sp, strlen((const void *)sp) + 1);
+ /* redo from start */
+ goto simplify_gmatch_pat1;
+ }
+ *dp++ = MAGIC;
+ *dp++ = c;
+ }
+ *dp = '\0';
+
+ /* collapse adjacent asterisk wildcards */
+ sp = dp = cp;
+ while ((c = *sp++)) {
+ if (!ISMAGIC(c)) {
+ *dp++ = c;
+ continue;
+ }
+ switch ((c = *sp++)) {
+ case '*':
+ while (ISMAGIC(sp[0]) && sp[1] == c)
+ sp += 2;
+ break;
+ }
+ *dp++ = MAGIC;
+ *dp++ = c;
+ }
+ *dp = '\0';
+
+ /* return the result, allocated from ATEMP */
+ return (cp);
+}
+
+/* -------- gmatch.c -------- */
+
+/*
+ * int gmatch(string, pattern)
+ * char *string, *pattern;
+ *
+ * Match a pattern as in sh(1).
+ * pattern character are prefixed with MAGIC by expand.
+ */
+int
+gmatchx(const char *s, const char *p, bool isfile)
+{
+ const char *se, *pe;
+ char *pnew;
+ int rv;
+
+ if (s == NULL || p == NULL)
+ return (0);
+
+ se = s + strlen(s);
+ pe = p + strlen(p);
+ /*
+ * isfile is false iff no syntax check has been done on
+ * the pattern. If check fails, just to a strcmp().
+ */
+ if (!isfile && !has_globbing(p, pe)) {
+ size_t len = pe - p + 1;
+ char tbuf[64];
+ char *t = len <= sizeof(tbuf) ? tbuf : alloc(len, ATEMP);
+ debunk(t, p, len);
+ return (!strcmp(t, s));
+ }
+
+ /*
+ * since the do_gmatch() engine sucks so much, we must do some
+ * pattern simplifications
+ */
+ pnew = simplify_gmatch_pattern((const unsigned char *)p);
+ pe = pnew + strlen(pnew);
+
+ rv = do_gmatch((const unsigned char *)s, (const unsigned char *)se,
+ (const unsigned char *)pnew, (const unsigned char *)pe);
+ afree(pnew, ATEMP);
+ return (rv);
+}
+
+/**
+ * Returns if p is a syntacticly correct globbing pattern, false
+ * if it contains no pattern characters or if there is a syntax error.
+ * Syntax errors are:
+ * - [ with no closing ]
+ * - imbalanced $(...) expression
+ * - [...] and *(...) not nested (eg, [a$(b|]c), *(a[b|c]d))
+ */
+/*XXX
+ * - if no magic,
+ * if dest given, copy to dst
+ * return ?
+ * - if magic && (no globbing || syntax error)
+ * debunk to dst
+ * return ?
+ * - return ?
+ */
+int
+has_globbing(const char *xp, const char *xpe)
+{
+ const unsigned char *p = (const unsigned char *) xp;
+ const unsigned char *pe = (const unsigned char *) xpe;
+ int c;
+ int nest = 0, bnest = 0;
+ bool saw_glob = false;
+ /* inside [...] */
+ bool in_bracket = false;
+
+ for (; p < pe; p++) {
+ if (!ISMAGIC(*p))
+ continue;
+ if ((c = *++p) == '*' || c == '?')
+ saw_glob = true;
+ else if (c == '[') {
+ if (!in_bracket) {
+ saw_glob = true;
+ in_bracket = true;
+ if (ISMAGIC(p[1]) && p[2] == '!')
+ p += 2;
+ if (ISMAGIC(p[1]) && p[2] == ']')
+ p += 2;
+ }
+ /*XXX Do we need to check ranges here? POSIX Q */
+ } else if (c == ']') {
+ if (in_bracket) {
+ if (bnest)
+ /* [a*(b]) */
+ return (0);
+ in_bracket = false;
+ }
+ } else if ((c & 0x80) && vstrchr("*+?@! ", c & 0x7f)) {
+ saw_glob = true;
+ if (in_bracket)
+ bnest++;
+ else
+ nest++;
+ } else if (c == '|') {
+ if (in_bracket && !bnest)
+ /* *(a[foo|bar]) */
+ return (0);
+ } else if (c == /*(*/ ')') {
+ if (in_bracket) {
+ if (!bnest--)
+ /* *(a[b)c] */
+ return (0);
+ } else if (nest)
+ nest--;
+ }
+ /*
+ * else must be a MAGIC-MAGIC, or MAGIC-!,
+ * MAGIC--, MAGIC-], MAGIC-{, MAGIC-, MAGIC-}
+ */
+ }
+ return (saw_glob && !in_bracket && !nest);
+}
+
+/* Function must return either 0 or 1 (assumed by code for 0x80|'!') */
+static int
+do_gmatch(const unsigned char *s, const unsigned char *se,
+ const unsigned char *p, const unsigned char *pe)
+{
+ unsigned char sc, pc;
+ const unsigned char *prest, *psub, *pnext;
+ const unsigned char *srest;
+
+ if (s == NULL || p == NULL)
+ return (0);
+ while (p < pe) {
+ pc = *p++;
+ sc = s < se ? *s : '\0';
+ s++;
+ if (!ISMAGIC(pc)) {
+ if (sc != pc)
+ return (0);
+ continue;
+ }
+ switch (*p++) {
+ case '[':
+ if (sc == 0 || (p = cclass(p, sc)) == NULL)
+ return (0);
+ break;
+
+ case '?':
+ if (sc == 0)
+ return (0);
+ if (UTFMODE) {
+ --s;
+ s += utf_ptradj((const void *)s);
+ }
+ break;
+
+ case '*':
+ if (p == pe)
+ return (1);
+ s--;
+ do {
+ if (do_gmatch(s, se, p, pe))
+ return (1);
+ } while (s++ < se);
+ return (0);
+
+ /**
+ * [*+?@!](pattern|pattern|..)
+ * This is also needed for ${..%..}, etc.
+ */
+
+ /* matches one or more times */
+ case 0x80|'+':
+ /* matches zero or more times */
+ case 0x80|'*':
+ if (!(prest = pat_scan(p, pe, false)))
+ return (0);
+ s--;
+ /* take care of zero matches */
+ if (p[-1] == (0x80 | '*') &&
+ do_gmatch(s, se, prest, pe))
+ return (1);
+ for (psub = p; ; psub = pnext) {
+ pnext = pat_scan(psub, pe, true);
+ for (srest = s; srest <= se; srest++) {
+ if (do_gmatch(s, srest, psub, pnext - 2) &&
+ (do_gmatch(srest, se, prest, pe) ||
+ (s != srest && do_gmatch(srest,
+ se, p - 2, pe))))
+ return (1);
+ }
+ if (pnext == prest)
+ break;
+ }
+ return (0);
+
+ /* matches zero or once */
+ case 0x80|'?':
+ /* matches one of the patterns */
+ case 0x80|'@':
+ /* simile for @ */
+ case 0x80|' ':
+ if (!(prest = pat_scan(p, pe, false)))
+ return (0);
+ s--;
+ /* Take care of zero matches */
+ if (p[-1] == (0x80 | '?') &&
+ do_gmatch(s, se, prest, pe))
+ return (1);
+ for (psub = p; ; psub = pnext) {
+ pnext = pat_scan(psub, pe, true);
+ srest = prest == pe ? se : s;
+ for (; srest <= se; srest++) {
+ if (do_gmatch(s, srest, psub, pnext - 2) &&
+ do_gmatch(srest, se, prest, pe))
+ return (1);
+ }
+ if (pnext == prest)
+ break;
+ }
+ return (0);
+
+ /* matches none of the patterns */
+ case 0x80|'!':
+ if (!(prest = pat_scan(p, pe, false)))
+ return (0);
+ s--;
+ for (srest = s; srest <= se; srest++) {
+ int matched = 0;
+
+ for (psub = p; ; psub = pnext) {
+ pnext = pat_scan(psub, pe, true);
+ if (do_gmatch(s, srest, psub,
+ pnext - 2)) {
+ matched = 1;
+ break;
+ }
+ if (pnext == prest)
+ break;
+ }
+ if (!matched &&
+ do_gmatch(srest, se, prest, pe))
+ return (1);
+ }
+ return (0);
+
+ default:
+ if (sc != p[-1])
+ return (0);
+ break;
+ }
+ }
+ return (s == se);
+}
+
+static const unsigned char *
+cclass(const unsigned char *p, unsigned char sub)
+{
+ unsigned char c, d;
+ bool notp, found = false;
+ const unsigned char *orig_p = p;
+
+ if ((notp = tobool(ISMAGIC(*p) && *++p == '!')))
+ p++;
+ do {
+ c = *p++;
+ if (ISMAGIC(c)) {
+ c = *p++;
+ if ((c & 0x80) && !ISMAGIC(c)) {
+ /* extended pattern matching: *+?@! */
+ c &= 0x7F;
+ /* XXX the ( char isn't handled as part of [] */
+ if (c == ' ')
+ /* simile for @: plain (..) */
+ c = '(' /*)*/;
+ }
+ }
+ if (c == '\0')
+ /* No closing ] - act as if the opening [ was quoted */
+ return (sub == '[' ? orig_p : NULL);
+ if (ISMAGIC(p[0]) && p[1] == '-' &&
+ (!ISMAGIC(p[2]) || p[3] != ']')) {
+ /* MAGIC- */
+ p += 2;
+ d = *p++;
+ if (ISMAGIC(d)) {
+ d = *p++;
+ if ((d & 0x80) && !ISMAGIC(d))
+ d &= 0x7f;
+ }
+ /* POSIX says this is an invalid expression */
+ if (c > d)
+ return (NULL);
+ } else
+ d = c;
+ if (c == sub || (c <= sub && sub <= d))
+ found = true;
+ } while (!(ISMAGIC(p[0]) && p[1] == ']'));
+
+ return ((found != notp) ? p+2 : NULL);
+}
+
+/* Look for next ) or | (if match_sep) in *(foo|bar) pattern */
+static const unsigned char *
+pat_scan(const unsigned char *p, const unsigned char *pe, bool match_sep)
+{
+ int nest = 0;
+
+ for (; p < pe; p++) {
+ if (!ISMAGIC(*p))
+ continue;
+ if ((*++p == /*(*/ ')' && nest-- == 0) ||
+ (*p == '|' && match_sep && nest == 0))
+ return (p + 1);
+ if ((*p & 0x80) && vstrchr("*+?@! ", *p & 0x7f))
+ nest++;
+ }
+ return (NULL);
+}
+
+int
+xstrcmp(const void *p1, const void *p2)
+{
+ return (strcmp(*(const char * const *)p1, *(const char * const *)p2));
+}
+
+/* Initialise a Getopt structure */
+void
+ksh_getopt_reset(Getopt *go, int flags)
+{
+ go->optind = 1;
+ go->optarg = NULL;
+ go->p = 0;
+ go->flags = flags;
+ go->info = 0;
+ go->buf[1] = '\0';
+}
+
+
+/**
+ * getopt() used for shell built-in commands, the getopts command, and
+ * command line options.
+ * A leading ':' in options means don't print errors, instead return '?'
+ * or ':' and set go->optarg to the offending option character.
+ * If GF_ERROR is set (and option doesn't start with :), errors result in
+ * a call to bi_errorf().
+ *
+ * Non-standard features:
+ * - ';' is like ':' in options, except the argument is optional
+ * (if it isn't present, optarg is set to 0).
+ * Used for 'set -o'.
+ * - ',' is like ':' in options, except the argument always immediately
+ * follows the option character (optarg is set to the null string if
+ * the option is missing).
+ * Used for 'read -u2', 'print -u2' and fc -40.
+ * - '#' is like ':' in options, expect that the argument is optional
+ * and must start with a digit. If the argument doesn't start with a
+ * digit, it is assumed to be missing and normal option processing
+ * continues (optarg is set to 0 if the option is missing).
+ * Used for 'typeset -LZ4'.
+ * - accepts +c as well as -c IF the GF_PLUSOPT flag is present. If an
+ * option starting with + is accepted, the GI_PLUS flag will be set
+ * in go->info.
+ */
+int
+ksh_getopt(const char **argv, Getopt *go, const char *optionsp)
+{
+ char c;
+ const char *o;
+
+ if (go->p == 0 || (c = argv[go->optind - 1][go->p]) == '\0') {
+ const char *arg = argv[go->optind], flag = arg ? *arg : '\0';
+
+ go->p = 1;
+ if (flag == '-' && arg[1] == '-' && arg[2] == '\0') {
+ go->optind++;
+ go->p = 0;
+ go->info |= GI_MINUSMINUS;
+ return (-1);
+ }
+ if (arg == NULL ||
+ ((flag != '-' ) &&
+ /* neither a - nor a + (if + allowed) */
+ (!(go->flags & GF_PLUSOPT) || flag != '+')) ||
+ (c = arg[1]) == '\0') {
+ go->p = 0;
+ return (-1);
+ }
+ go->optind++;
+ go->info &= ~(GI_MINUS|GI_PLUS);
+ go->info |= flag == '-' ? GI_MINUS : GI_PLUS;
+ }
+ go->p++;
+ if (c == '?' || c == ':' || c == ';' || c == ',' || c == '#' ||
+ !(o = cstrchr(optionsp, c))) {
+ if (optionsp[0] == ':') {
+ go->buf[0] = c;
+ go->optarg = go->buf;
+ } else {
+ warningf(true, "%s%s-%c: %s",
+ (go->flags & GF_NONAME) ? "" : argv[0],
+ (go->flags & GF_NONAME) ? "" : ": ", c,
+ "unknown option");
+ if (go->flags & GF_ERROR)
+ bi_errorfz();
+ }
+ return ('?');
+ }
+ /**
+ * : means argument must be present, may be part of option argument
+ * or the next argument
+ * ; same as : but argument may be missing
+ * , means argument is part of option argument, and may be null.
+ */
+ if (*++o == ':' || *o == ';') {
+ if (argv[go->optind - 1][go->p])
+ go->optarg = argv[go->optind - 1] + go->p;
+ else if (argv[go->optind])
+ go->optarg = argv[go->optind++];
+ else if (*o == ';')
+ go->optarg = NULL;
+ else {
+ if (optionsp[0] == ':') {
+ go->buf[0] = c;
+ go->optarg = go->buf;
+ return (':');
+ }
+ warningf(true, "%s%s-%c: %s",
+ (go->flags & GF_NONAME) ? "" : argv[0],
+ (go->flags & GF_NONAME) ? "" : ": ", c,
+ "requires an argument");
+ if (go->flags & GF_ERROR)
+ bi_errorfz();
+ return ('?');
+ }
+ go->p = 0;
+ } else if (*o == ',') {
+ /* argument is attached to option character, even if null */
+ go->optarg = argv[go->optind - 1] + go->p;
+ go->p = 0;
+ } else if (*o == '#') {
+ /*
+ * argument is optional and may be attached or unattached
+ * but must start with a digit. optarg is set to 0 if the
+ * argument is missing.
+ */
+ if (argv[go->optind - 1][go->p]) {
+ if (ksh_isdigit(argv[go->optind - 1][go->p])) {
+ go->optarg = argv[go->optind - 1] + go->p;
+ go->p = 0;
+ } else
+ go->optarg = NULL;
+ } else {
+ if (argv[go->optind] && ksh_isdigit(argv[go->optind][0])) {
+ go->optarg = argv[go->optind++];
+ go->p = 0;
+ } else
+ go->optarg = NULL;
+ }
+ }
+ return (c);
+}
+
+/*
+ * print variable/alias value using necessary quotes
+ * (POSIX says they should be suitable for re-entry...)
+ * No trailing newline is printed.
+ */
+void
+print_value_quoted(struct shf *shf, const char *s)
+{
+ unsigned char c;
+ const unsigned char *p = (const unsigned char *)s;
+ bool inquote = true;
+
+ /* first, check whether any quotes are needed */
+ while ((c = *p++) >= 32)
+ if (ctype(c, C_QUOTE))
+ inquote = false;
+
+ p = (const unsigned char *)s;
+ if (c == 0) {
+ if (inquote) {
+ /* nope, use the shortcut */
+ shf_puts(s, shf);
+ return;
+ }
+
+ /* otherwise, quote nicely via state machine */
+ while ((c = *p++) != 0) {
+ if (c == '\'') {
+ /*
+ * multiple single quotes or any of them
+ * at the beginning of a string look nicer
+ * this way than when simply substituting
+ */
+ if (inquote) {
+ shf_putc('\'', shf);
+ inquote = false;
+ }
+ shf_putc('\\', shf);
+ } else if (!inquote) {
+ shf_putc('\'', shf);
+ inquote = true;
+ }
+ shf_putc(c, shf);
+ }
+ } else {
+ unsigned int wc;
+ size_t n;
+
+ /* use $'...' quote format */
+ shf_putc('$', shf);
+ shf_putc('\'', shf);
+ while ((c = *p) != 0) {
+ if (c >= 0xC2) {
+ n = utf_mbtowc(&wc, (const char *)p);
+ if (n != (size_t)-1) {
+ p += n;
+ shf_fprintf(shf, "\\u%04X", wc);
+ continue;
+ }
+ }
+ ++p;
+ switch (c) {
+ /* see unbksl() in this file for comments */
+ case 7:
+ c = 'a';
+ if (0)
+ /* FALLTHROUGH */
+ case '\b':
+ c = 'b';
+ if (0)
+ /* FALLTHROUGH */
+ case '\f':
+ c = 'f';
+ if (0)
+ /* FALLTHROUGH */
+ case '\n':
+ c = 'n';
+ if (0)
+ /* FALLTHROUGH */
+ case '\r':
+ c = 'r';
+ if (0)
+ /* FALLTHROUGH */
+ case '\t':
+ c = 't';
+ if (0)
+ /* FALLTHROUGH */
+ case 11:
+ c = 'v';
+ if (0)
+ /* FALLTHROUGH */
+ case '\033':
+ /* take E not e because \e is \ in *roff */
+ c = 'E';
+ /* FALLTHROUGH */
+ case '\\':
+ shf_putc('\\', shf);
+
+ if (0)
+ /* FALLTHROUGH */
+ default:
+ if (c < 32 || c > 0x7E) {
+ /* FALLTHROUGH */
+ case '\'':
+ shf_fprintf(shf, "\\%03o", c);
+ break;
+ }
+
+ shf_putc(c, shf);
+ break;
+ }
+ }
+ inquote = true;
+ }
+ if (inquote)
+ shf_putc('\'', shf);
+}
+
+/*
+ * Print things in columns and rows - func() is called to format
+ * the i-th element
+ */
+void
+print_columns(struct shf *shf, unsigned int n,
+ char *(*func)(char *, size_t, unsigned int, const void *),
+ const void *arg, size_t max_oct, size_t max_colz, bool prefcol)
+{
+ unsigned int i, r, c, rows, cols, nspace, max_col;
+ char *str;
+
+ if (!n)
+ return;
+
+ if (max_colz > 2147483646) {
+#ifndef MKSH_SMALL
+ internal_warningf("print_columns called with %s=%zu >= INT_MAX",
+ "max_col", max_colz);
+#endif
+ return;
+ }
+ max_col = (unsigned int)max_colz;
+
+ if (max_oct > 2147483646) {
+#ifndef MKSH_SMALL
+ internal_warningf("print_columns called with %s=%zu >= INT_MAX",
+ "max_oct", max_oct);
+#endif
+ return;
+ }
+ ++max_oct;
+ str = alloc(max_oct, ATEMP);
+
+ /*
+ * We use (max_col + 1) to consider the space separator.
+ * Note that no space is printed after the last column
+ * to avoid problems with terminals that have auto-wrap.
+ */
+ cols = x_cols / (max_col + 1);
+
+ /* if we can only print one column anyway, skip the goo */
+ if (cols < 2) {
+ for (i = 0; i < n; ++i)
+ shf_fprintf(shf, "%s\n",
+ (*func)(str, max_oct, i, arg));
+ goto out;
+ }
+
+ rows = (n + cols - 1) / cols;
+ if (prefcol && cols > rows) {
+ cols = rows;
+ rows = (n + cols - 1) / cols;
+ }
+
+ nspace = (x_cols - max_col * cols) / cols;
+ max_col = -max_col;
+ if (nspace <= 0)
+ nspace = 1;
+ for (r = 0; r < rows; r++) {
+ for (c = 0; c < cols; c++) {
+ i = c * rows + r;
+ if (i < n) {
+ shf_fprintf(shf, "%*s", max_col,
+ (*func)(str, max_oct, i, arg));
+ if (c + 1 < cols)
+ shf_fprintf(shf, "%*s", nspace, null);
+ }
+ }
+ shf_putchar('\n', shf);
+ }
+ out:
+ afree(str, ATEMP);
+}
+
+/* Strip any nul bytes from buf - returns new length (nbytes - # of nuls) */
+void
+strip_nuls(char *buf, int nbytes)
+{
+ char *dst;
+
+ /*
+ * nbytes check because some systems (older FreeBSDs) have a
+ * buggy memchr()
+ */
+ if (nbytes && (dst = memchr(buf, '\0', nbytes))) {
+ char *end = buf + nbytes;
+ char *p, *q;
+
+ for (p = dst; p < end; p = q) {
+ /* skip a block of nulls */
+ while (++p < end && *p == '\0')
+ ;
+ /* find end of non-null block */
+ if (!(q = memchr(p, '\0', end - p)))
+ q = end;
+ memmove(dst, p, q - p);
+ dst += q - p;
+ }
+ *dst = '\0';
+ }
+}
+
+/*
+ * Like read(2), but if read fails due to non-blocking flag,
+ * resets flag and restarts read.
+ */
+ssize_t
+blocking_read(int fd, char *buf, size_t nbytes)
+{
+ ssize_t ret;
+ bool tried_reset = false;
+
+ while ((ret = read(fd, buf, nbytes)) < 0) {
+ if (!tried_reset && errno == EAGAIN) {
+ if (reset_nonblock(fd) > 0) {
+ tried_reset = true;
+ continue;
+ }
+ errno = EAGAIN;
+ }
+ break;
+ }
+ return (ret);
+}
+
+/*
+ * Reset the non-blocking flag on the specified file descriptor.
+ * Returns -1 if there was an error, 0 if non-blocking wasn't set,
+ * 1 if it was.
+ */
+int
+reset_nonblock(int fd)
+{
+ int flags;
+
+ if ((flags = fcntl(fd, F_GETFL, 0)) < 0)
+ return (-1);
+ if (!(flags & O_NONBLOCK))
+ return (0);
+ flags &= ~O_NONBLOCK;
+ if (fcntl(fd, F_SETFL, flags) < 0)
+ return (-1);
+ return (1);
+}
+
+/* getcwd(3) equivalent, allocates from ATEMP but doesn't resize */
+char *
+ksh_get_wd(void)
+{
+#ifdef MKSH__NO_PATH_MAX
+ char *rv, *cp;
+
+ if ((cp = get_current_dir_name())) {
+ strdupx(rv, cp, ATEMP);
+ free_gnu_gcdn(cp);
+ } else
+ rv = NULL;
+#else
+ char *rv;
+
+ if (!getcwd((rv = alloc(PATH_MAX + 1, ATEMP)), PATH_MAX)) {
+ afree(rv, ATEMP);
+ rv = NULL;
+ }
+#endif
+
+ return (rv);
+}
+
+#ifndef ELOOP
+#define ELOOP E2BIG
+#endif
+
+char *
+do_realpath(const char *upath)
+{
+ char *xp, *ip, *tp, *ipath, *ldest = NULL;
+ XString xs;
+ ptrdiff_t pos;
+ size_t len;
+ int llen;
+ struct stat sb;
+#ifdef MKSH__NO_PATH_MAX
+ size_t ldestlen = 0;
+#define pathlen sb.st_size
+#define pathcnd (ldestlen < (pathlen + 1))
+#else
+#define pathlen PATH_MAX
+#define pathcnd (!ldest)
+#endif
+ /* max. recursion depth */
+ int symlinks = 32;
+
+ if (upath[0] == '/') {
+ /* upath is an absolute pathname */
+ strdupx(ipath, upath, ATEMP);
+ } else {
+ /* upath is a relative pathname, prepend cwd */
+ if ((tp = ksh_get_wd()) == NULL || tp[0] != '/')
+ return (NULL);
+ ipath = shf_smprintf("%s%s%s", tp, "/", upath);
+ afree(tp, ATEMP);
+ }
+
+ /* ipath and upath are in memory at the same time -> unchecked */
+ Xinit(xs, xp, strlen(ip = ipath) + 1, ATEMP);
+
+ /* now jump into the deep of the loop */
+ goto beginning_of_a_pathname;
+
+ while (*ip) {
+ /* skip slashes in input */
+ while (*ip == '/')
+ ++ip;
+ if (!*ip)
+ break;
+
+ /* get next pathname component from input */
+ tp = ip;
+ while (*ip && *ip != '/')
+ ++ip;
+ len = ip - tp;
+
+ /* check input for "." and ".." */
+ if (tp[0] == '.') {
+ if (len == 1)
+ /* just continue with the next one */
+ continue;
+ else if (len == 2 && tp[1] == '.') {
+ /* strip off last pathname component */
+ while (xp > Xstring(xs, xp))
+ if (*--xp == '/')
+ break;
+ /* then continue with the next one */
+ continue;
+ }
+ }
+
+ /* store output position away, then append slash to output */
+ pos = Xsavepos(xs, xp);
+ /* 1 for the '/' and len + 1 for tp and the NUL from below */
+ XcheckN(xs, xp, 1 + len + 1);
+ Xput(xs, xp, '/');
+
+ /* append next pathname component to output */
+ memcpy(xp, tp, len);
+ xp += len;
+ *xp = '\0';
+
+ /* lstat the current output, see if it's a symlink */
+ if (mksh_lstat(Xstring(xs, xp), &sb)) {
+ /* lstat failed */
+ if (errno == ENOENT) {
+ /* because the pathname does not exist */
+ while (*ip == '/')
+ /* skip any trailing slashes */
+ ++ip;
+ /* no more components left? */
+ if (!*ip)
+ /* we can still return successfully */
+ break;
+ /* more components left? fall through */
+ }
+ /* not ENOENT or not at the end of ipath */
+ goto notfound;
+ }
+
+ /* check if we encountered a symlink? */
+ if (S_ISLNK(sb.st_mode)) {
+#ifndef MKSH__NO_SYMLINK
+ /* reached maximum recursion depth? */
+ if (!symlinks--) {
+ /* yep, prevent infinite loops */
+ errno = ELOOP;
+ goto notfound;
+ }
+
+ /* get symlink(7) target */
+ if (pathcnd) {
+#ifdef MKSH__NO_PATH_MAX
+ if (notoktoadd(pathlen, 1)) {
+ errno = ENAMETOOLONG;
+ goto notfound;
+ }
+#endif
+ ldest = aresize(ldest, pathlen + 1, ATEMP);
+ }
+ llen = readlink(Xstring(xs, xp), ldest, pathlen);
+ if (llen < 0)
+ /* oops... */
+ goto notfound;
+ ldest[llen] = '\0';
+
+ /*
+ * restart if symlink target is an absolute path,
+ * otherwise continue with currently resolved prefix
+ */
+ /* append rest of current input path to link target */
+ tp = shf_smprintf("%s%s%s", ldest, *ip ? "/" : "", ip);
+ afree(ipath, ATEMP);
+ ip = ipath = tp;
+ if (ldest[0] != '/') {
+ /* symlink target is a relative path */
+ xp = Xrestpos(xs, xp, pos);
+ } else
+#endif
+ {
+ /* symlink target is an absolute path */
+ xp = Xstring(xs, xp);
+ beginning_of_a_pathname:
+ /* assert: (ip == ipath)[0] == '/' */
+ /* assert: xp == xs.beg => start of path */
+
+ /* exactly two leading slashes? (SUSv4 3.266) */
+ if (ip[1] == '/' && ip[2] != '/') {
+ /* keep them, e.g. for UNC pathnames */
+ Xput(xs, xp, '/');
+ }
+ }
+ }
+ /* otherwise (no symlink) merely go on */
+ }
+
+ /*
+ * either found the target and successfully resolved it,
+ * or found its parent directory and may create it
+ */
+ if (Xlength(xs, xp) == 0)
+ /*
+ * if the resolved pathname is "", make it "/",
+ * otherwise do not add a trailing slash
+ */
+ Xput(xs, xp, '/');
+ Xput(xs, xp, '\0');
+
+ /*
+ * if source path had a trailing slash, check if target path
+ * is not a non-directory existing file
+ */
+ if (ip > ipath && ip[-1] == '/') {
+ if (stat(Xstring(xs, xp), &sb)) {
+ if (errno != ENOENT)
+ goto notfound;
+ } else if (!S_ISDIR(sb.st_mode)) {
+ errno = ENOTDIR;
+ goto notfound;
+ }
+ /* target now either does not exist or is a directory */
+ }
+
+ /* return target path */
+ if (ldest != NULL)
+ afree(ldest, ATEMP);
+ afree(ipath, ATEMP);
+ return (Xclose(xs, xp));
+
+ notfound:
+ /* save; freeing memory might trash it */
+ llen = errno;
+ if (ldest != NULL)
+ afree(ldest, ATEMP);
+ afree(ipath, ATEMP);
+ Xfree(xs, xp);
+ errno = llen;
+ return (NULL);
+
+#undef pathlen
+#undef pathcnd
+}
+
+/**
+ * Makes a filename into result using the following algorithm.
+ * - make result NULL
+ * - if file starts with '/', append file to result & set cdpathp to NULL
+ * - if file starts with ./ or ../ append cwd and file to result
+ * and set cdpathp to NULL
+ * - if the first element of cdpathp doesnt start with a '/' xx or '.' xx
+ * then cwd is appended to result.
+ * - the first element of cdpathp is appended to result
+ * - file is appended to result
+ * - cdpathp is set to the start of the next element in cdpathp (or NULL
+ * if there are no more elements.
+ * The return value indicates whether a non-null element from cdpathp
+ * was appended to result.
+ */
+static int
+make_path(const char *cwd, const char *file,
+ /* pointer to colon-separated list */
+ char **cdpathp,
+ XString *xsp,
+ int *phys_pathp)
+{
+ int rval = 0;
+ bool use_cdpath = true;
+ char *plist;
+ size_t len, plen = 0;
+ char *xp = Xstring(*xsp, xp);
+
+ if (!file)
+ file = null;
+
+ if (file[0] == '/') {
+ *phys_pathp = 0;
+ use_cdpath = false;
+ } else {
+ if (file[0] == '.') {
+ char c = file[1];
+
+ if (c == '.')
+ c = file[2];
+ if (c == '/' || c == '\0')
+ use_cdpath = false;
+ }
+
+ plist = *cdpathp;
+ if (!plist)
+ use_cdpath = false;
+ else if (use_cdpath) {
+ char *pend;
+
+ for (pend = plist; *pend && *pend != ':'; pend++)
+ ;
+ plen = pend - plist;
+ *cdpathp = *pend ? pend + 1 : NULL;
+ }
+
+ if ((!use_cdpath || !plen || plist[0] != '/') &&
+ (cwd && *cwd)) {
+ len = strlen(cwd);
+ XcheckN(*xsp, xp, len);
+ memcpy(xp, cwd, len);
+ xp += len;
+ if (cwd[len - 1] != '/')
+ Xput(*xsp, xp, '/');
+ }
+ *phys_pathp = Xlength(*xsp, xp);
+ if (use_cdpath && plen) {
+ XcheckN(*xsp, xp, plen);
+ memcpy(xp, plist, plen);
+ xp += plen;
+ if (plist[plen - 1] != '/')
+ Xput(*xsp, xp, '/');
+ rval = 1;
+ }
+ }
+
+ len = strlen(file) + 1;
+ XcheckN(*xsp, xp, len);
+ memcpy(xp, file, len);
+
+ if (!use_cdpath)
+ *cdpathp = NULL;
+
+ return (rval);
+}
+
+/*-
+ * Simplify pathnames containing "." and ".." entries.
+ *
+ * simplify_path(this) = that
+ * /a/b/c/./../d/.. /a/b
+ * //./C/foo/bar/../baz //C/foo/baz
+ * /foo/ /foo
+ * /foo/../../bar /bar
+ * /foo/./blah/.. /foo
+ * . .
+ * .. ..
+ * ./foo foo
+ * foo/../../../bar ../../bar
+ */
+void
+simplify_path(char *p)
+{
+ char *dp, *ip, *sp, *tp;
+ size_t len;
+ bool needslash;
+
+ switch (*p) {
+ case 0:
+ return;
+ case '/':
+ /* exactly two leading slashes? (SUSv4 3.266) */
+ if (p[1] == '/' && p[2] != '/')
+ /* keep them, e.g. for UNC pathnames */
+ ++p;
+ needslash = true;
+ break;
+ default:
+ needslash = false;
+ }
+ dp = ip = sp = p;
+
+ while (*ip) {
+ /* skip slashes in input */
+ while (*ip == '/')
+ ++ip;
+ if (!*ip)
+ break;
+
+ /* get next pathname component from input */
+ tp = ip;
+ while (*ip && *ip != '/')
+ ++ip;
+ len = ip - tp;
+
+ /* check input for "." and ".." */
+ if (tp[0] == '.') {
+ if (len == 1)
+ /* just continue with the next one */
+ continue;
+ else if (len == 2 && tp[1] == '.') {
+ /* parent level, but how? */
+ if (*p == '/')
+ /* absolute path, only one way */
+ goto strip_last_component;
+ else if (dp > sp) {
+ /* relative path, with subpaths */
+ needslash = false;
+ strip_last_component:
+ /* strip off last pathname component */
+ while (dp > sp)
+ if (*--dp == '/')
+ break;
+ } else {
+ /* relative path, at its beginning */
+ if (needslash)
+ /* or already dotdot-slash'd */
+ *dp++ = '/';
+ /* keep dotdot-slash if not absolute */
+ *dp++ = '.';
+ *dp++ = '.';
+ needslash = true;
+ sp = dp;
+ }
+ /* then continue with the next one */
+ continue;
+ }
+ }
+
+ if (needslash)
+ *dp++ = '/';
+
+ /* append next pathname component to output */
+ memmove(dp, tp, len);
+ dp += len;
+
+ /* append slash if we continue */
+ needslash = true;
+ /* try next component */
+ }
+ if (dp == p)
+ /* empty path -> dot */
+ *dp++ = needslash ? '/' : '.';
+ *dp = '\0';
+}
+
+void
+set_current_wd(const char *nwd)
+{
+ char *allocd = NULL;
+
+ if (nwd == NULL) {
+ allocd = ksh_get_wd();
+ nwd = allocd ? allocd : null;
+ }
+
+ afree(current_wd, APERM);
+ strdupx(current_wd, nwd, APERM);
+
+ afree(allocd, ATEMP);
+}
+
+int
+c_cd(const char **wp)
+{
+ int optc, rv, phys_path;
+ bool physical = tobool(Flag(FPHYSICAL));
+ /* was a node from cdpath added in? */
+ int cdnode;
+ /* show where we went?, error for $PWD */
+ bool printpath = false, eflag = false;
+ struct tbl *pwd_s, *oldpwd_s;
+ XString xs;
+ char *dir, *allocd = NULL, *tryp, *pwd, *cdpath;
+
+ while ((optc = ksh_getopt(wp, &builtin_opt, "eLP")) != -1)
+ switch (optc) {
+ case 'e':
+ eflag = true;
+ break;
+ case 'L':
+ physical = false;
+ break;
+ case 'P':
+ physical = true;
+ break;
+ case '?':
+ return (2);
+ }
+ wp += builtin_opt.optind;
+
+ if (Flag(FRESTRICTED)) {
+ bi_errorf("restricted shell - can't cd");
+ return (2);
+ }
+
+ pwd_s = global("PWD");
+ oldpwd_s = global("OLDPWD");
+
+ if (!wp[0]) {
+ /* No arguments - go home */
+ if ((dir = str_val(global("HOME"))) == null) {
+ bi_errorf("no home directory (HOME not set)");
+ return (2);
+ }
+ } else if (!wp[1]) {
+ /* One argument: - or dir */
+ strdupx(allocd, wp[0], ATEMP);
+ if (ksh_isdash((dir = allocd))) {
+ afree(allocd, ATEMP);
+ allocd = NULL;
+ dir = str_val(oldpwd_s);
+ if (dir == null) {
+ bi_errorf("no OLDPWD");
+ return (2);
+ }
+ printpath = true;
+ }
+ } else if (!wp[2]) {
+ /* Two arguments - substitute arg1 in PWD for arg2 */
+ size_t ilen, olen, nlen, elen;
+ char *cp;
+
+ if (!current_wd[0]) {
+ bi_errorf("can't determine current directory");
+ return (2);
+ }
+ /*
+ * substitute arg1 for arg2 in current path.
+ * if the first substitution fails because the cd fails
+ * we could try to find another substitution. For now
+ * we don't
+ */
+ if ((cp = strstr(current_wd, wp[0])) == NULL) {
+ bi_errorf("bad substitution");
+ return (2);
+ }
+ /*-
+ * ilen = part of current_wd before wp[0]
+ * elen = part of current_wd after wp[0]
+ * because current_wd and wp[1] need to be in memory at the
+ * same time beforehand the addition can stay unchecked
+ */
+ ilen = cp - current_wd;
+ olen = strlen(wp[0]);
+ nlen = strlen(wp[1]);
+ elen = strlen(current_wd + ilen + olen) + 1;
+ dir = allocd = alloc(ilen + nlen + elen, ATEMP);
+ memcpy(dir, current_wd, ilen);
+ memcpy(dir + ilen, wp[1], nlen);
+ memcpy(dir + ilen + nlen, current_wd + ilen + olen, elen);
+ printpath = true;
+ } else {
+ bi_errorf("too many arguments");
+ return (2);
+ }
+
+#ifdef MKSH__NO_PATH_MAX
+ /* only a first guess; make_path will enlarge xs if necessary */
+ XinitN(xs, 1024, ATEMP);
+#else
+ XinitN(xs, PATH_MAX, ATEMP);
+#endif
+
+ cdpath = str_val(global("CDPATH"));
+ do {
+ cdnode = make_path(current_wd, dir, &cdpath, &xs, &phys_path);
+ if (physical)
+ rv = chdir(tryp = Xstring(xs, xp) + phys_path);
+ else {
+ simplify_path(Xstring(xs, xp));
+ rv = chdir(tryp = Xstring(xs, xp));
+ }
+ } while (rv < 0 && cdpath != NULL);
+
+ if (rv < 0) {
+ if (cdnode)
+ bi_errorf("%s: %s", dir, "bad directory");
+ else
+ bi_errorf("%s: %s", tryp, cstrerror(errno));
+ afree(allocd, ATEMP);
+ Xfree(xs, xp);
+ return (2);
+ }
+
+ rv = 0;
+
+ /* allocd (above) => dir, which is no longer used */
+ afree(allocd, ATEMP);
+ allocd = NULL;
+
+ /* Clear out tracked aliases with relative paths */
+ flushcom(false);
+
+ /*
+ * Set OLDPWD (note: unsetting OLDPWD does not disable this
+ * setting in AT&T ksh)
+ */
+ if (current_wd[0])
+ /* Ignore failure (happens if readonly or integer) */
+ setstr(oldpwd_s, current_wd, KSH_RETURN_ERROR);
+
+ if (Xstring(xs, xp)[0] != '/') {
+ pwd = NULL;
+ } else if (!physical) {
+ goto norealpath_PWD;
+ } else if ((pwd = allocd = do_realpath(Xstring(xs, xp))) == NULL) {
+ if (eflag)
+ rv = 1;
+ norealpath_PWD:
+ pwd = Xstring(xs, xp);
+ }
+
+ /* Set PWD */
+ if (pwd) {
+ char *ptmp = pwd;
+
+ set_current_wd(ptmp);
+ /* Ignore failure (happens if readonly or integer) */
+ setstr(pwd_s, ptmp, KSH_RETURN_ERROR);
+ } else {
+ set_current_wd(null);
+ pwd = Xstring(xs, xp);
+ /* XXX unset $PWD? */
+ if (eflag)
+ rv = 1;
+ }
+ if (printpath || cdnode)
+ shprintf("%s\n", pwd);
+
+ afree(allocd, ATEMP);
+ Xfree(xs, xp);
+ return (rv);
+}
+
+
+#ifdef KSH_CHVT_CODE
+extern void chvt_reinit(void);
+
+static void
+chvt(const Getopt *go)
+{
+ const char *dv = go->optarg;
+ char *cp = NULL;
+ int fd;
+
+ switch (*dv) {
+ case '-':
+ dv = "/dev/null";
+ break;
+ case '!':
+ ++dv;
+ /* FALLTHROUGH */
+ default: {
+ struct stat sb;
+
+ if (stat(dv, &sb)) {
+ cp = shf_smprintf("/dev/ttyC%s", dv);
+ dv = cp;
+ if (stat(dv, &sb)) {
+ memmove(cp + 1, cp, /* /dev/tty */ 8);
+ dv = cp + 1;
+ if (stat(dv, &sb)) {
+ errorf("%s: %s: %s", "chvt",
+ "can't find tty", go->optarg);
+ }
+ }
+ }
+ if (!(sb.st_mode & S_IFCHR))
+ errorf("%s: %s: %s", "chvt", "not a char device", dv);
+#ifndef MKSH_DISABLE_REVOKE_WARNING
+#if HAVE_REVOKE
+ if (revoke(dv))
+#endif
+ warningf(false, "%s: %s %s", "chvt",
+ "new shell is potentially insecure, can't revoke",
+ dv);
+#endif
+ }
+ }
+ if ((fd = open(dv, O_RDWR | O_BINARY)) < 0) {
+ sleep(1);
+ if ((fd = open(dv, O_RDWR | O_BINARY)) < 0) {
+ errorf("%s: %s %s", "chvt", "can't open", dv);
+ }
+ }
+ if (go->optarg[0] != '!') {
+ switch (fork()) {
+ case -1:
+ errorf("%s: %s %s", "chvt", "fork", "failed");
+ case 0:
+ break;
+ default:
+ exit(0);
+ }
+ }
+ if (setsid() == -1)
+ errorf("%s: %s %s", "chvt", "setsid", "failed");
+ if (go->optarg[0] != '-') {
+ if (ioctl(fd, TIOCSCTTY, NULL) == -1)
+ errorf("%s: %s %s", "chvt", "TIOCSCTTY", "failed");
+ if (tcflush(fd, TCIOFLUSH))
+ errorf("%s: %s %s", "chvt", "TCIOFLUSH", "failed");
+ }
+ ksh_dup2(fd, 0, false);
+ ksh_dup2(fd, 1, false);
+ ksh_dup2(fd, 2, false);
+ if (fd > 2)
+ close(fd);
+ rndset((unsigned long)chvt_rndsetup(go, sizeof(Getopt)));
+ chvt_reinit();
+}
+#endif
+
+#ifdef DEBUG
+char *
+strchr(char *p, int ch)
+{
+ for (;; ++p) {
+ if (*p == ch)
+ return (p);
+ if (!*p)
+ return (NULL);
+ }
+ /* NOTREACHED */
+}
+
+char *
+strstr(char *b, const char *l)
+{
+ char first, c;
+ size_t n;
+
+ if ((first = *l++) == '\0')
+ return (b);
+ n = strlen(l);
+ strstr_look:
+ while ((c = *b++) != first)
+ if (c == '\0')
+ return (NULL);
+ if (strncmp(b, l, n))
+ goto strstr_look;
+ return (b - 1);
+}
+#endif
+
+#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
+char *
+strndup_i(const char *src, size_t len, Area *ap)
+{
+ char *dst = NULL;
+
+ if (src != NULL) {
+ dst = alloc(len + 1, ap);
+ memcpy(dst, src, len);
+ dst[len] = '\0';
+ }
+ return (dst);
+}
+
+char *
+strdup_i(const char *src, Area *ap)
+{
+ return (src == NULL ? NULL : strndup_i(src, strlen(src), ap));
+}
+#endif
+
+#if !HAVE_GETRUSAGE
+#define INVTCK(r,t) do { \
+ r.tv_usec = ((t) % (1000000 / CLK_TCK)) * (1000000 / CLK_TCK); \
+ r.tv_sec = (t) / CLK_TCK; \
+} while (/* CONSTCOND */ 0)
+
+int
+getrusage(int what, struct rusage *ru)
+{
+ struct tms tms;
+ clock_t u, s;
+
+ if (/* ru == NULL || */ times(&tms) == (clock_t)-1)
+ return (-1);
+
+ switch (what) {
+ case RUSAGE_SELF:
+ u = tms.tms_utime;
+ s = tms.tms_stime;
+ break;
+ case RUSAGE_CHILDREN:
+ u = tms.tms_cutime;
+ s = tms.tms_cstime;
+ break;
+ default:
+ errno = EINVAL;
+ return (-1);
+ }
+ INVTCK(ru->ru_utime, u);
+ INVTCK(ru->ru_stime, s);
+ return (0);
+}
+#endif
+
+/*
+ * process the string available via fg (get a char)
+ * and fp (put back a char) for backslash escapes,
+ * assuming the first call to *fg gets the char di-
+ * rectly after the backslash; return the character
+ * (0..0xFF), Unicode (wc + 0x100), or -1 if no known
+ * escape sequence was found
+ */
+int
+unbksl(bool cstyle, int (*fg)(void), void (*fp)(int))
+{
+ int wc, i, c, fc;
+
+ fc = (*fg)();
+ switch (fc) {
+ case 'a':
+ /*
+ * according to the comments in pdksh, \007 seems
+ * to be more portable than \a (due to HP-UX cc,
+ * Ultrix cc, old pcc, etc.) so we avoid the escape
+ * sequence altogether in mksh and assume ASCII
+ */
+ wc = 7;
+ break;
+ case 'b':
+ wc = '\b';
+ break;
+ case 'c':
+ if (!cstyle)
+ goto unknown_escape;
+ c = (*fg)();
+ wc = CTRL(c);
+ break;
+ case 'E':
+ case 'e':
+ wc = 033;
+ break;
+ case 'f':
+ wc = '\f';
+ break;
+ case 'n':
+ wc = '\n';
+ break;
+ case 'r':
+ wc = '\r';
+ break;
+ case 't':
+ wc = '\t';
+ break;
+ case 'v':
+ /* assume ASCII here as well */
+ wc = 11;
+ break;
+ case '1':
+ case '2':
+ case '3':
+ case '4':
+ case '5':
+ case '6':
+ case '7':
+ if (!cstyle)
+ goto unknown_escape;
+ /* FALLTHROUGH */
+ case '0':
+ if (cstyle)
+ (*fp)(fc);
+ /*
+ * look for an octal number with up to three
+ * digits, not counting the leading zero;
+ * convert it to a raw octet
+ */
+ wc = 0;
+ i = 3;
+ while (i--)
+ if ((c = (*fg)()) >= '0' && c <= '7')
+ wc = (wc << 3) + (c - '0');
+ else {
+ (*fp)(c);
+ break;
+ }
+ break;
+ case 'U':
+ i = 8;
+ if (/* CONSTCOND */ 0)
+ /* FALLTHROUGH */
+ case 'u':
+ i = 4;
+ if (/* CONSTCOND */ 0)
+ /* FALLTHROUGH */
+ case 'x':
+ i = cstyle ? -1 : 2;
+ /**
+ * x: look for a hexadecimal number with up to
+ * two (C style: arbitrary) digits; convert
+ * to raw octet (C style: Unicode if >0xFF)
+ * u/U: look for a hexadecimal number with up to
+ * four (U: eight) digits; convert to Unicode
+ */
+ wc = 0;
+ while (i--) {
+ wc <<= 4;
+ if ((c = (*fg)()) >= '0' && c <= '9')
+ wc += c - '0';
+ else if (c >= 'A' && c <= 'F')
+ wc += c - 'A' + 10;
+ else if (c >= 'a' && c <= 'f')
+ wc += c - 'a' + 10;
+ else {
+ wc >>= 4;
+ (*fp)(c);
+ break;
+ }
+ }
+ if ((cstyle && wc > 0xFF) || fc != 'x')
+ /* Unicode marker */
+ wc += 0x100;
+ break;
+ case '\'':
+ if (!cstyle)
+ goto unknown_escape;
+ wc = '\'';
+ break;
+ case '\\':
+ wc = '\\';
+ break;
+ default:
+ unknown_escape:
+ (*fp)(fc);
+ return (-1);
+ }
+
+ return (wc);
+}
Deleted: vendor/MirOS/mksh/R50/mksh.1
===================================================================
--- vendor/MirOS/mksh/dist/mksh.1 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/mksh.1 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,6451 +0,0 @@
-.\" $MirOS: src/bin/mksh/mksh.1,v 1.320 2013/08/10 14:11:39 tg Exp $
-.\" $OpenBSD: ksh.1,v 1.147 2013/06/13 19:43:09 millert Exp $
-.\"-
-.\" Copyright © 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
-.\" 2010, 2011, 2012, 2013
-.\" Thorsten Glaser <tg at mirbsd.org>
-.\"
-.\" Provided that these terms and disclaimer and all copyright notices
-.\" are retained or reproduced in an accompanying document, permission
-.\" is granted to deal in this work without restriction, including un‐
-.\" limited rights to use, publicly perform, distribute, sell, modify,
-.\" merge, give away, or sublicence.
-.\"
-.\" This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
-.\" the utmost extent permitted by applicable law, neither express nor
-.\" implied; without malicious intent or gross negligence. In no event
-.\" may a licensor, author or contributor be held liable for indirect,
-.\" direct, other damage, loss, or other issues arising in any way out
-.\" of dealing in the work, even if advised of the possibility of such
-.\" damage or existence of a defect, except proven that it results out
-.\" of said person’s immediate fault when using the work as intended.
-.\"-
-.\" Try to make GNU groff and AT&T nroff more compatible
-.\" * ` generates ‘ in gnroff, so use \`
-.\" * ' generates ’ in gnroff, \' generates ´, so use \*(aq
-.\" * - generates ‐ in gnroff, \- generates −, so .tr it to -
-.\" thus use - for hyphens and \- for minus signs and option dashes
-.\" * ~ is size-reduced and placed atop in groff, so use \*(TI
-.\" * ^ is size-reduced and placed atop in groff, so use \*(ha
-.\" * \(en does not work in nroff, so use \*(en
-.\" * <>| are problematic, so redefine and use \*(Lt\*(Gt\*(Ba
-.\" Also make sure to use \& especially with two-letter words.
-.\" The section after the "doc" macropackage has been loaded contains
-.\" additional code to convene between the UCB mdoc macropackage (and
-.\" its variant as BSD mdoc in groff) and the GNU mdoc macropackage.
-.\"
-.ie \n(.g \{\
-. if \*[.T]ascii .tr \-\N'45'
-. if \*[.T]latin1 .tr \-\N'45'
-. if \*[.T]utf8 .tr \-\N'45'
-. ds <= \[<=]
-. ds >= \[>=]
-. ds Rq \[rq]
-. ds Lq \[lq]
-. ds sL \(aq
-. ds sR \(aq
-. if \*[.T]utf8 .ds sL `
-. if \*[.T]ps .ds sL `
-. if \*[.T]utf8 .ds sR '
-. if \*[.T]ps .ds sR '
-. ds aq \(aq
-. ds TI \(ti
-. ds ha \(ha
-. ds en \(en
-.\}
-.el \{\
-. ds aq '
-. ds TI ~
-. ds ha ^
-. ds en \(em
-.\}
-.\"
-.\" Implement .Dd with the Mdocdate RCS keyword
-.\"
-.rn Dd xD
-.de Dd
-.ie \\$1$Mdocdate: \{\
-. xD \\$2 \\$3, \\$4
-.\}
-.el .xD \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8
-..
-.\"
-.\" .Dd must come before definition of .Mx, because when called
-.\" with -mandoc, it might implement .Mx itself, but we want to
-.\" use our own definition. And .Dd must come *first*, always.
-.\"
-.Dd $Mdocdate: August 10 2013 $
-.\"
-.\" Check which macro package we use, and do other -mdoc setup.
-.\"
-.ie \n(.g \{\
-. if \*[.T]utf8 .tr \[la]\*(Lt
-. if \*[.T]utf8 .tr \[ra]\*(Gt
-. ie d volume-ds-1 .ds tT gnu
-. el .ds tT bsd
-.\}
-.el .ds tT ucb
-.\"
-.\" Implement .Mx (MirBSD)
-.\"
-.ie "\*(tT"gnu" \{\
-. eo
-. de Mx
-. nr curr-font \n[.f]
-. nr curr-size \n[.ps]
-. ds str-Mx \f[\n[curr-font]]\s[\n[curr-size]u]
-. ds str-Mx1 \*[Tn-font-size]\%MirOS\*[str-Mx]
-. if !\n[arg-limit] \
-. if \n[.$] \{\
-. ds macro-name Mx
-. parse-args \$@
-. \}
-. if (\n[arg-limit] > \n[arg-ptr]) \{\
-. nr arg-ptr +1
-. ie (\n[type\n[arg-ptr]] == 2) \
-. as str-Mx1 \~\*[arg\n[arg-ptr]]
-. el \
-. nr arg-ptr -1
-. \}
-. ds arg\n[arg-ptr] "\*[str-Mx1]
-. nr type\n[arg-ptr] 2
-. ds space\n[arg-ptr] "\*[space]
-. nr num-args (\n[arg-limit] - \n[arg-ptr])
-. nr arg-limit \n[arg-ptr]
-. if \n[num-args] \
-. parse-space-vector
-. print-recursive
-..
-. ec
-. ds sP \s0
-. ds tN \*[Tn-font-size]
-.\}
-.el \{\
-. de Mx
-. nr cF \\n(.f
-. nr cZ \\n(.s
-. ds aa \&\f\\n(cF\s\\n(cZ
-. if \\n(aC==0 \{\
-. ie \\n(.$==0 \&MirOS\\*(aa
-. el .aV \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9
-. \}
-. if \\n(aC>\\n(aP \{\
-. nr aP \\n(aP+1
-. ie \\n(C\\n(aP==2 \{\
-. as b1 \&MirOS\ #\&\\*(A\\n(aP\\*(aa
-. ie \\n(aC>\\n(aP \{\
-. nr aP \\n(aP+1
-. nR
-. \}
-. el .aZ
-. \}
-. el \{\
-. as b1 \&MirOS\\*(aa
-. nR
-. \}
-. \}
-..
-.\}
-.\"-
-.Dt MKSH 1
-.Os MirBSD
-.Sh NAME
-.Nm mksh ,
-.Nm sh
-.Nd MirBSD Korn shell
-.Sh SYNOPSIS
-.Nm
-.Bk -words
-.Op Fl +abCefhiklmnprUuvXx
-.Oo
-.Fl T Oo Ar \&! Oc Ns Ar tty
-\*(Ba
-.Ar \&\-
-.Oc
-.Op Fl +o Ar option
-.Oo
-.Fl c Ar string \*(Ba
-.Fl s \*(Ba
-.Ar file
-.Op Ar argument ...
-.Oc
-.Ek
-.Nm builtin-name
-.Op Ar argument ...
-.Sh DESCRIPTION
-.Nm
-is a command interpreter intended for both interactive and shell
-script use.
-Its command language is a superset of the
-.Xr sh C
-shell language and largely compatible to the original Korn shell.
-.Ss I'm an Android user, so what's mksh?
-.Nm mksh
-is a
-.Ux
-shell / command interpreter, similar to
-.Nm COMMAND.COM
-or
-.Nm CMD.EXE ,
-which has been included with
-.Tn Android Open Source Project
-for a while now.
-Basically, it's a program that runs in a terminal (console window),
-takes user input and runs commands or scripts, which it can also
-be asked to do by other programs, even in the background.
-Any privilege pop-ups you might be encountering are thus not
-.Nm mksh
-issues but questions by some other program utilising it.
-.Ss Invocation
-Most builtins can be called directly, for example if a link points from its
-name to the shell; not all make sense, have been tested or work at all though.
-.Pp
-The options are as follows:
-.Bl -tag -width XcXstring
-.It Fl c Ar string
-.Nm
-will execute the command(s) contained in
-.Ar string .
-.It Fl i
-Interactive shell.
-A shell is
-.Dq interactive
-if this
-option is used or if both standard input and standard error are attached
-to a
-.Xr tty 4 .
-An interactive shell has job control enabled, ignores the
-.Dv SIGINT ,
-.Dv SIGQUIT ,
-and
-.Dv SIGTERM
-signals, and prints prompts before reading input (see the
-.Ev PS1
-and
-.Ev PS2
-parameters).
-It also processes the
-.Ev ENV
-parameter or the
-.Pa mkshrc
-file (see below).
-For non-interactive shells, the
-.Ic trackall
-option is on by default (see the
-.Ic set
-command below).
-.It Fl l
-Login shell.
-If the basename the shell is called with (i.e. argv[0])
-starts with
-.Ql \-
-or if this option is used,
-the shell is assumed to be a login shell; see
-.Sx Startup files
-below.
-.It Fl p
-Privileged shell.
-A shell is
-.Dq privileged
-if this option is used
-or if the real user ID or group ID does not match the
-effective user ID or group ID (see
-.Xr getuid 2
-and
-.Xr getgid 2 ) .
-Clearing the privileged option causes the shell to set
-its effective user ID (group ID) to its real user ID (group ID).
-For further implications, see
-.Sx Startup files .
-.It Fl r
-Restricted shell.
-A shell is
-.Dq restricted
-if this
-option is used.
-The following restrictions come into effect after the shell processes any
-profile and
-.Ev ENV
-files:
-.Pp
-.Bl -bullet -compact
-.It
-The
-.Ic cd
-.Po and Ic chdir Pc
-command is disabled.
-.It
-The
-.Ev SHELL ,
-.Ev ENV ,
-and
-.Ev PATH
-parameters cannot be changed.
-.It
-Command names can't be specified with absolute or relative paths.
-.It
-The
-.Fl p
-option of the built-in command
-.Ic command
-can't be used.
-.It
-Redirections that create files can't be used (i.e.\&
-.Ql \*(Gt ,
-.Ql \*(Gt\*(Ba ,
-.Ql \*(Gt\*(Gt ,
-.Ql \*(Lt\*(Gt ) .
-.El
-.It Fl s
-The shell reads commands from standard input; all non-option arguments
-are positional parameters.
-.It Fl T Ar name
-Spawn
-.Nm
-on the
-.Xr tty 4
-device given.
-The paths
-.Ar name ,
-.Pa /dev/ttyC Ns Ar name
-and
-.Pa /dev/tty Ns Ar name
-are attempted in order.
-Unless
-.Ar name
-begins with an exclamation mark
-.Pq Sq \&! ,
-this is done in a subshell and returns immediately.
-If
-.Ar name
-is a dash
-.Pq Sq \&\- ,
-detach from controlling terminal (daemonise) instead.
-.El
-.Pp
-In addition to the above, the options described in the
-.Ic set
-built-in command can also be used on the command line:
-both
-.Op Fl +abCefhkmnuvXx
-and
-.Op Fl +o Ar option
-can be used for single letter or long options, respectively.
-.Pp
-If neither the
-.Fl c
-nor the
-.Fl s
-option is specified, the first non-option argument specifies the name
-of a file the shell reads commands from.
-If there are no non-option
-arguments, the shell reads commands from the standard input.
-The name of the shell (i.e. the contents of $0)
-is determined as follows: if the
-.Fl c
-option is used and there is a non-option argument, it is used as the name;
-if commands are being read from a file, the file is used as the name;
-otherwise, the basename the shell was called with (i.e. argv[0]) is used.
-.Pp
-The exit status of the shell is 127 if the command file specified on the
-command line could not be opened, or non-zero if a fatal syntax error
-occurred during the execution of a script.
-In the absence of fatal errors,
-the exit status is that of the last command executed, or zero, if no
-command is executed.
-.Ss Startup files
-For the actual location of these files, see
-.Sx FILES .
-A login shell processes the system profile first.
-A privileged shell then processes the suid profile.
-A non-privileged login shell processes the user profile next.
-A non-privileged interactive shell checks the value of the
-.Ev ENV
-parameter after subjecting it to parameter, command, arithmetic and tilde
-.Pq Sq \*(TI
-substitution; if unset or empty, the user mkshrc profile is processed;
-otherwise, if a file whose name is the substitution result exists,
-it is processed; non-existence is silently ignored.
-.Ss Command syntax
-The shell begins parsing its input by removing any backslash-newline
-combinations, then breaking it into
-.Em words .
-Words (which are sequences of characters) are delimited by unquoted whitespace
-characters (space, tab, and newline) or meta-characters
-.Po
-.Ql \*(Lt ,
-.Ql \*(Gt ,
-.Ql \*(Ba ,
-.Ql \&; ,
-.Ql \&( ,
-.Ql \&) ,
-and
-.Ql &
-.Pc .
-Aside from delimiting words, spaces and tabs are ignored, while newlines
-usually delimit commands.
-The meta-characters are used in building the following
-.Em tokens :
-.Ql \*(Lt ,
-.Ql \*(Lt& ,
-.Ql \*(Lt\*(Lt ,
-.Ql \*(Lt\*(Lt\*(Lt ,
-.Ql \*(Gt ,
-.Ql \*(Gt& ,
-.Ql \*(Gt\*(Gt ,
-.Ql &\*(Gt ,
-etc. are used to specify redirections (see
-.Sx Input/output redirection
-below);
-.Ql \*(Ba
-is used to create pipelines;
-.Ql \*(Ba&
-is used to create co-processes (see
-.Sx Co-processes
-below);
-.Ql \&;
-is used to separate commands;
-.Ql &
-is used to create asynchronous pipelines;
-.Ql &&
-and
-.Ql \*(Ba\*(Ba
-are used to specify conditional execution;
-.Ql ;; ,
-.Ql ;&\&
-and
-.Ql ;\*(Ba\&
-are used in
-.Ic case
-statements;
-.Ql \&(( .. ))
-is used in arithmetic expressions;
-and lastly,
-.Ql \&( .. )\&
-is used to create subshells.
-.Pp
-Whitespace and meta-characters can be quoted individually using a backslash
-.Pq Sq \e ,
-or in groups using double
-.Pq Sq \&"
-or single
-.Pq Sq \*(aq
-quotes.
-Note that the following characters are also treated specially by the
-shell and must be quoted if they are to represent themselves:
-.Ql \e ,
-.Ql \&" ,
-.Ql \*(aq ,
-.Ql # ,
-.Ql $ ,
-.Ql \` ,
-.Ql \*(TI ,
-.Ql { ,
-.Ql } ,
-.Ql * ,
-.Ql \&? ,
-and
-.Ql \&[ .
-The first three of these are the above mentioned quoting characters (see
-.Sx Quoting
-below);
-.Ql # ,
-if used at the beginning of a word, introduces a comment \*(en everything after
-the
-.Ql #
-up to the nearest newline is ignored;
-.Ql $
-is used to introduce parameter, command, and arithmetic substitutions (see
-.Sx Substitution
-below);
-.Ql \`
-introduces an old-style command substitution (see
-.Sx Substitution
-below);
-.Ql \*(TI
-begins a directory expansion (see
-.Sx Tilde expansion
-below);
-.Ql {
-and
-.Ql }
-delimit
-.Xr csh 1 Ns -style
-alterations (see
-.Sx Brace expansion
-below);
-and finally,
-.Ql * ,
-.Ql \&? ,
-and
-.Ql \&[
-are used in file name generation (see
-.Sx File name patterns
-below).
-.Pp
-As words and tokens are parsed, the shell builds commands, of which there
-are two basic types:
-.Em simple-commands ,
-typically programmes that are executed, and
-.Em compound-commands ,
-such as
-.Ic for
-and
-.Ic if
-statements, grouping constructs, and function definitions.
-.Pp
-A simple-command consists of some combination of parameter assignments
-(see
-.Sx Parameters
-below),
-input/output redirections (see
-.Sx Input/output redirections
-below),
-and command words; the only restriction is that parameter assignments come
-before any command words.
-The command words, if any, define the command
-that is to be executed and its arguments.
-The command may be a shell built-in command, a function,
-or an external command
-(i.e. a separate executable file that is located using the
-.Ev PATH
-parameter; see
-.Sx Command execution
-below).
-Note that all command constructs have an exit status: for external commands,
-this is related to the status returned by
-.Xr wait 2
-(if the command could not be found, the exit status is 127; if it could not
-be executed, the exit status is 126); the exit status of other command
-constructs (built-in commands, functions, compound-commands, pipelines, lists,
-etc.) are all well-defined and are described where the construct is
-described.
-The exit status of a command consisting only of parameter
-assignments is that of the last command substitution performed during the
-parameter assignment or 0 if there were no command substitutions.
-.Pp
-Commands can be chained together using the
-.Ql \*(Ba
-token to form pipelines, in which the standard output of each command but the
-last is piped (see
-.Xr pipe 2 )
-to the standard input of the following command.
-The exit status of a pipeline is that of its last command, unless the
-.Ic pipefail
-option is set (see there).
-All commands of a pipeline are executed in separate subshells;
-this is allowed by POSIX but differs from both variants of
-.At
-.Nm ksh ,
-where all but the last command were executed in subshells; see the
-.Ic read
-builtin's description for implications and workarounds.
-A pipeline may be prefixed by the
-.Ql \&!
-reserved word which causes the exit status of the pipeline to be logically
-complemented: if the original status was 0, the complemented status will be 1;
-if the original status was not 0, the complemented status will be 0.
-.Pp
-.Em Lists
-of commands can be created by separating pipelines by any of the following
-tokens:
-.Ql && ,
-.Ql \*(Ba\*(Ba ,
-.Ql & ,
-.Ql \*(Ba& ,
-and
-.Ql \&; .
-The first two are for conditional execution:
-.Dq Ar cmd1 No && Ar cmd2
-executes
-.Ar cmd2
-only if the exit status of
-.Ar cmd1
-is zero;
-.Ql \*(Ba\*(Ba
-is the opposite \*(en
-.Ar cmd2
-is executed only if the exit status of
-.Ar cmd1
-is non-zero.
-.Ql &&
-and
-.Ql \*(Ba\*(Ba
-have equal precedence which is higher than that of
-.Ql & ,
-.Ql \*(Ba& ,
-and
-.Ql \&; ,
-which also have equal precedence.
-Note that the
-.Ql &&
-and
-.Ql \*(Ba\*(Ba
-operators are
-.Qq left-associative .
-For example, both of these commands will print only
-.Qq bar :
-.Bd -literal -offset indent
-$ false && echo foo \*(Ba\*(Ba echo bar
-$ true \*(Ba\*(Ba echo foo && echo bar
-.Ed
-.Pp
-The
-.Ql &
-token causes the preceding command to be executed asynchronously; that is,
-the shell starts the command but does not wait for it to complete (the shell
-does keep track of the status of asynchronous commands; see
-.Sx Job control
-below).
-When an asynchronous command is started when job control is disabled
-(i.e. in most scripts), the command is started with signals
-.Dv SIGINT
-and
-.Dv SIGQUIT
-ignored and with input redirected from
-.Pa /dev/null
-(however, redirections specified in the asynchronous command have precedence).
-The
-.Ql \*(Ba&
-operator starts a co-process which is a special kind of asynchronous process
-(see
-.Sx Co-processes
-below).
-Note that a command must follow the
-.Ql &&
-and
-.Ql \*(Ba\*(Ba
-operators, while it need not follow
-.Ql & ,
-.Ql \*(Ba& ,
-or
-.Ql \&; .
-The exit status of a list is that of the last command executed, with the
-exception of asynchronous lists, for which the exit status is 0.
-.Pp
-Compound commands are created using the following reserved words.
-These words
-are only recognised if they are unquoted and if they are used as the first
-word of a command (i.e. they can't be preceded by parameter assignments or
-redirections):
-.Bd -literal -offset indent
-case else function then ! (
-do esac if time [[ ((
-done fi in until {
-elif for select while }
-.Ed
-.Pp
-In the following compound command descriptions, command lists (denoted as
-.Em list )
-that are followed by reserved words must end with a semicolon, a newline, or
-a (syntactically correct) reserved word.
-For example, the following are all valid:
-.Bd -literal -offset indent
-$ { echo foo; echo bar; }
-$ { echo foo; echo bar\*(Ltnewline\*(Gt}
-$ { { echo foo; echo bar; } }
-.Ed
-.Pp
-This is not valid:
-.Pp
-.Dl $ { echo foo; echo bar }
-.Bl -tag -width 4n
-.It Pq Ar list
-Execute
-.Ar list
-in a subshell.
-There is no implicit way to pass environment changes from a
-subshell back to its parent.
-.It { Ar list ; No }
-Compound construct;
-.Ar list
-is executed, but not in a subshell.
-Note that
-.Ql {
-and
-.Ql }
-are reserved words, not meta-characters.
-.It Xo case Ar word No in
-.Oo Op \&(
-.Ar pattern
-.Op \*(Ba Ar pat
-.No ... Ns )
-.Ar list
-.Op ;; \*(Ba ;&\& \*(Ba ;\*(Ba\ \&
-.Oc ... esac
-.Xc
-The
-.Ic case
-statement attempts to match
-.Ar word
-against a specified
-.Ar pattern ;
-the
-.Ar list
-associated with the first successfully matched pattern is executed.
-Patterns used in
-.Ic case
-statements are the same as those used for file name patterns except that the
-restrictions regarding
-.Ql \&.
-and
-.Ql /
-are dropped.
-Note that any unquoted space before and after a pattern is
-stripped; any space within a pattern must be quoted.
-Both the word and the
-patterns are subject to parameter, command, and arithmetic substitution, as
-well as tilde substitution.
-.Pp
-For historical reasons, open and close braces may be used instead of
-.Ic in
-and
-.Ic esac
-e.g.\&
-.Ic case $foo { *) echo bar;; } .
-.Pp
-The list terminators are:
-.Bl -tag -width 4n
-.It Ql ;;
-Terminate after the list.
-.It Ql ;&\&
-Fall through into the next list.
-.It Ql ;\*(Ba\&
-Evaluate the remaining pattern-list tuples.
-.El
-.Pp
-The exit status of a
-.Ic case
-statement is that of the executed
-.Ar list ;
-if no
-.Ar list
-is executed, the exit status is zero.
-.It Xo for Ar name
-.Oo in Ar word No ... Oc ;
-.No do Ar list ; No done
-.Xc
-For each
-.Ar word
-in the specified word list, the parameter
-.Ar name
-is set to the word and
-.Ar list
-is executed.
-If
-.Ic in
-is not used to specify a word list, the positional parameters
-($1, $2, etc.)\&
-are used instead.
-For historical reasons, open and close braces may be used instead of
-.Ic do
-and
-.Ic done
-e.g.\&
-.Ic for i; { echo $i; } .
-The exit status of a
-.Ic for
-statement is the last exit status of
-.Ar list ;
-if
-.Ar list
-is never executed, the exit status is zero.
-.It Xo if Ar list ;
-.No then Ar list ;
-.Oo elif Ar list ;
-.No then Ar list ; Oc
-.No ...
-.Oo else Ar list ; Oc
-.No fi
-.Xc
-If the exit status of the first
-.Ar list
-is zero, the second
-.Ar list
-is executed; otherwise, the
-.Ar list
-following the
-.Ic elif ,
-if any, is executed with similar consequences.
-If all the lists following the
-.Ic if
-and
-.Ic elif Ns s
-fail (i.e. exit with non-zero status), the
-.Ar list
-following the
-.Ic else
-is executed.
-The exit status of an
-.Ic if
-statement is that of non-conditional
-.Ar list
-that is executed; if no non-conditional
-.Ar list
-is executed, the exit status is zero.
-.It Xo select Ar name
-.Oo in Ar word No ... Oc ;
-.No do Ar list ; No done
-.Xc
-The
-.Ic select
-statement provides an automatic method of presenting the user with a menu and
-selecting from it.
-An enumerated list of the specified
-.Ar word Ns (s)
-is printed on standard error, followed by a prompt
-.Po
-.Ev PS3: normally
-.Sq #?\ \&
-.Pc .
-A number corresponding to one of the enumerated words is then read from
-standard input,
-.Ar name
-is set to the selected word (or unset if the selection is not valid),
-.Ev REPLY
-is set to what was read (leading/trailing space is stripped), and
-.Ar list
-is executed.
-If a blank line (i.e. zero or more
-.Ev IFS
-octets) is entered, the menu is reprinted without executing
-.Ar list .
-.Pp
-When
-.Ar list
-completes, the enumerated list is printed if
-.Ev REPLY
-is
-.Dv NULL ,
-the prompt is printed, and so on.
-This process continues until an end-of-file
-is read, an interrupt is received, or a
-.Ic break
-statement is executed inside the loop.
-If
-.Dq in word ...
-is omitted, the positional parameters are used
-(i.e. $1, $2, etc.).
-For historical reasons, open and close braces may be used instead of
-.Ic do
-and
-.Ic done
-e.g.\&
-.Ic select i; { echo $i; } .
-The exit status of a
-.Ic select
-statement is zero if a
-.Ic break
-statement is used to exit the loop, non-zero otherwise.
-.It Xo until Ar list ;
-.No do Ar list ;
-.No done
-.Xc
-This works like
-.Ic while ,
-except that the body is executed only while the exit status of the first
-.Ar list
-is non-zero.
-.It Xo while Ar list ;
-.No do Ar list ;
-.No done
-.Xc
-A
-.Ic while
-is a pre-checked loop.
-Its body is executed as often as the exit status of the first
-.Ar list
-is zero.
-The exit status of a
-.Ic while
-statement is the last exit status of the
-.Ar list
-in the body of the loop; if the body is not executed, the exit status is zero.
-.It Xo function Ar name
-.No { Ar list ; No }
-.Xc
-Defines the function
-.Ar name
-(see
-.Sx Functions
-below).
-Note that redirections specified after a function definition are
-performed whenever the function is executed, not when the function definition
-is executed.
-.It Ar name Ns \&() Ar command
-Mostly the same as
-.Ic function
-(see
-.Sx Functions
-below).
-Whitespace (space or tab) after
-.Ar name
-will be ignored most of the time.
-.It Xo function Ar name Ns \&()
-.No { Ar list ; No }
-.Xc
-The same as
-.Ar name Ns \&()
-.Pq Nm bash Ns ism .
-The
-.Ic function
-keyword is ignored.
-.It Xo Ic time Op Fl p
-.Op Ar pipeline
-.Xc
-The
-.Sx Command execution
-section describes the
-.Ic time
-reserved word.
-.It \&(( Ar expression No ))
-The arithmetic expression
-.Ar expression
-is evaluated; equivalent to
-.Dq let expression
-(see
-.Sx Arithmetic expressions
-and the
-.Ic let
-command, below).
-.It Bq Bq Ar \ \&expression\ \&
-Similar to the
-.Ic test
-and
-.Ic \&[ ... \&]
-commands (described later), with the following exceptions:
-.Bl -bullet
-.It
-Field splitting and file name generation are not performed on arguments.
-.It
-The
-.Fl a
-.Pq AND
-and
-.Fl o
-.Pq OR
-operators are replaced with
-.Ql &&
-and
-.Ql \*(Ba\*(Ba ,
-respectively.
-.It
-Operators (e.g.\&
-.Sq Fl f ,
-.Sq = ,
-.Sq \&! )
-must be unquoted.
-.It
-Parameter, command, and arithmetic substitutions are performed as expressions
-are evaluated and lazy expression evaluation is used for the
-.Ql &&
-and
-.Ql \*(Ba\*(Ba
-operators.
-This means that in the following statement,
-.Ic $(\*(Ltfoo)
-is evaluated if and only if the file
-.Pa foo
-exists and is readable:
-.Bd -literal -offset indent
-$ [[ \-r foo && $(\*(Ltfoo) = b*r ]]
-.Ed
-.It
-The second operand of the
-.Sq !=
-and
-.Sq =
-expressions are patterns (e.g. the comparison
-.Ic \&[[ foobar = f*r ]]
-succeeds).
-This even works indirectly:
-.Bd -literal -offset indent
-$ bar=foobar; baz=\*(aqf*r\*(aq
-$ [[ $bar = $baz ]]; echo $?
-$ [[ $bar = \&"$baz" ]]; echo $?
-.Ed
-.Pp
-Perhaps surprisingly, the first comparison succeeds,
-whereas the second doesn't.
-.El
-.El
-.Ss Quoting
-Quoting is used to prevent the shell from treating characters or words
-specially.
-There are three methods of quoting.
-First,
-.Ql \e
-quotes the following character, unless it is at the end of a line, in which
-case both the
-.Ql \e
-and the newline are stripped.
-Second, a single quote
-.Pq Sq \*(aq
-quotes everything up to the next single quote (this may span lines).
-Third, a double quote
-.Pq Sq \&"
-quotes all characters, except
-.Ql $ ,
-.Ql \`
-and
-.Ql \e ,
-up to the next unquoted double quote.
-.Ql $
-and
-.Ql \`
-inside double quotes have their usual meaning (i.e. parameter, command, or
-arithmetic substitution) except no field splitting is carried out on the
-results of double-quoted substitutions.
-If a
-.Ql \e
-inside a double-quoted string is followed by
-.Ql \e ,
-.Ql $ ,
-.Ql \` ,
-or
-.Ql \&" ,
-it is replaced by the second character; if it is followed by a newline, both
-the
-.Ql \e
-and the newline are stripped; otherwise, both the
-.Ql \e
-and the character following are unchanged.
-.Pp
-If a single-quoted string is preceded by an unquoted
-.Ql $ ,
-C style backslash expansion (see below) is applied (even single quote
-characters inside can be escaped and do not terminate the string then);
-the expanded result is treated as any other single-quoted string.
-If a double-quoted string is preceded by an unquoted
-.Ql $ ,
-the latter is ignored.
-.Ss Backslash expansion
-In places where backslashes are expanded, certain C and
-.At
-.Nm ksh
-or GNU
-.Nm bash
-style escapes are translated.
-These include
-.Ql \ea ,
-.Ql \eb ,
-.Ql \ef ,
-.Ql \en ,
-.Ql \er ,
-.Ql \et ,
-.Ql \eU######## ,
-.Ql \eu#### ,
-and
-.Ql \ev .
-For
-.Ql \eU########
-and
-.Ql \eu#### ,
-.Dq #
-means a hexadecimal digit, of thich there may be none up to four or eight;
-these escapes translate a Unicode codepoint to UTF-8.
-Furthermore,
-.Ql \eE
-and
-.Ql \ee
-expand to the escape character.
-.Pp
-In the
-.Ic print
-builtin mode,
-.Ql \e" ,
-.Ql \e\*(aq ,
-and
-.Ql \e?
-are explicitly excluded;
-octal sequences must have the none up to three octal digits
-.Dq #
-prefixed with the digit zero
-.Pq Ql \e0### ;
-hexadecimal sequences
-.Ql \ex##
-are limited to none up to two hexadecimal digits
-.Dq # ;
-both octal and hexadecimal sequences convert to raw octets;
-.Ql \e# ,
-where # is none of the above, translates to \e# (backslashes are retained).
-.Pp
-Backslash expansion in the C style mode slightly differs: octal sequences
-.Ql \e###
-must have no digit zero prefixing the one up to three octal digits
-.Dq #
-and yield raw octets; hexadecimal sequences
-.Ql \ex#*
-greedily eat up as many hexadecimal digits
-.Dq #
-as they can and terminate with the first non-hexadecimal digit;
-these translate a Unicode codepoint to UTF-8.
-The sequence
-.Ql \ec# ,
-where
-.Dq #
-is any octet, translates to Ctrl-# (which basically means,
-.Ql \ec?
-becomes DEL, everything else is bitwise ANDed with 0x1F).
-Finally,
-.Ql \e# ,
-where # is none of the above, translates to # (has the backslash trimmed),
-even if it is a newline.
-.Ss Aliases
-There are two types of aliases: normal command aliases and tracked aliases.
-Command aliases are normally used as a short hand for a long or often used
-command.
-The shell expands command aliases (i.e. substitutes the alias name
-for its value) when it reads the first word of a command.
-An expanded alias is re-processed to check for more aliases.
-If a command alias ends in a
-space or tab, the following word is also checked for alias expansion.
-The alias expansion process stops when a word that is not an alias is found,
-when a quoted word is found, or when an alias word that is currently being
-expanded is found.
-Aliases are specifically an interactive feature: while they do happen
-to work in scripts and on the command line in some cases, aliases are
-expanded during lexing, so their use must be in a separate command tree
-from their definition; otherwise, the alias will not be found.
-Noticeably, command lists (separated by semicolon, in command substitutions
-also by newline) may be one same parse tree.
-.Pp
-The following command aliases are defined automatically by the shell:
-.Bd -literal -offset indent
-autoload=\*(aqtypeset \-fu\*(aq
-functions=\*(aqtypeset \-f\*(aq
-hash=\*(aqalias \-t\*(aq
-history=\*(aqfc \-l\*(aq
-integer=\*(aqtypeset \-i\*(aq
-local=\*(aqtypeset\*(aq
-login=\*(aqexec login\*(aq
-nameref=\*(aqtypeset \-n\*(aq
-nohup=\*(aqnohup \*(aq
-r=\*(aqfc \-e \-\*(aq
-stop=\*(aqkill \-STOP\*(aq
-suspend=\*(aqkill \-STOP $$\*(aq
-type=\*(aqwhence \-v\*(aq
-.Ed
-.Pp
-Tracked aliases allow the shell to remember where it found a particular
-command.
-The first time the shell does a path search for a command that is
-marked as a tracked alias, it saves the full path of the command.
-The next
-time the command is executed, the shell checks the saved path to see that it
-is still valid, and if so, avoids repeating the path search.
-Tracked aliases can be listed and created using
-.Ic alias \-t .
-Note that changing the
-.Ev PATH
-parameter clears the saved paths for all tracked aliases.
-If the
-.Ic trackall
-option is set (i.e.\&
-.Ic set \-o Ic trackall
-or
-.Ic set \-h ) ,
-the shell tracks all commands.
-This option is set automatically for non-interactive shells.
-For interactive shells, only the following commands are
-automatically tracked:
-.Xr cat 1 ,
-.Xr cc 1 ,
-.Xr chmod 1 ,
-.Xr cp 1 ,
-.Xr date 1 ,
-.Xr ed 1 ,
-.Xr emacs 1 ,
-.Xr grep 1 ,
-.Xr ls 1 ,
-.Xr make 1 ,
-.Xr mv 1 ,
-.Xr pr 1 ,
-.Xr rm 1 ,
-.Xr sed 1 ,
-.Xr sh 1 ,
-.Xr vi 1 ,
-and
-.Xr who 1 .
-.Ss Substitution
-The first step the shell takes in executing a simple-command is to perform
-substitutions on the words of the command.
-There are three kinds of
-substitution: parameter, command, and arithmetic.
-Parameter substitutions,
-which are described in detail in the next section, take the form
-.Pf $ Ns Ar name
-or
-.Pf ${ Ns Ar ... Ns } ;
-command substitutions take the form
-.Pf $( Ns Ar command Ns \&)
-or (deprecated)
-.Pf \` Ns Ar command Ns \`
-or (executed in the current environment)
-.Pf ${\ \& Ar command Ns \&;}
-and strip trailing newlines;
-and arithmetic substitutions take the form
-.Pf $(( Ns Ar expression Ns )) .
-Parsing the current-environment command substitution requires a space,
-tab or newline after the opening brace and that the closing brace be
-recognised as a keyword (i.e. is preceded by a newline or semicolon).
-They are also called funsubs (function substitutions) and behave like
-functions in that
-.Ic local
-and
-.Ic return
-work, and in that
-.Ic exit
-terminates the parent shell.
-.Pp
-Another variant of substitution are the valsubs (value substitutions)
-.Pf ${\*(Ba\& Ns Ar command Ns \&;}
-which are also executed in the current environment, like funsubs, but
-share their I/O with the parent; instead, they evaluate to whatever
-the, initially empty, expression-local variable
-.Ev REPLY
-is set to within the
-.Ar command Ns No s .
-.Pp
-If a substitution appears outside of double quotes, the results of the
-substitution are generally subject to word or field splitting according to
-the current value of the
-.Ev IFS
-parameter.
-The
-.Ev IFS
-parameter specifies a list of octets which are used to break a string up
-into several words; any octets from the set space, tab, and newline that
-appear in the
-.Ev IFS
-octets are called
-.Dq IFS whitespace .
-Sequences of one or more
-.Ev IFS
-whitespace octets, in combination with zero or one
-.Pf non- Ev IFS
-whitespace octets, delimit a field.
-As a special case, leading and trailing
-.Ev IFS
-whitespace and trailing
-.Ev IFS
-non-whitespace are stripped (i.e. no leading or trailing empty field
-is created by it); leading
-.Pf non- Ev IFS
-whitespace does create an empty field.
-.Pp
-Example: If
-.Ev IFS
-is set to
-.Dq \*(Ltspace\*(Gt: ,
-and VAR is set to
-.Dq \*(Ltspace\*(GtA\*(Ltspace\*(Gt:\*(Ltspace\*(Gt\*(Ltspace\*(GtB::D ,
-the substitution for $VAR results in four fields:
-.Sq A ,
-.Sq B ,
-.Sq
-(an empty field),
-and
-.Sq D .
-Note that if the
-.Ev IFS
-parameter is set to the
-.Dv NULL
-string, no field splitting is done; if the parameter is unset, the default
-value of space, tab, and newline is used.
-.Pp
-Also, note that the field splitting applies only to the immediate result of
-the substitution.
-Using the previous example, the substitution for $VAR:E
-results in the fields:
-.Sq A ,
-.Sq B ,
-.Sq ,
-and
-.Sq D:E ,
-not
-.Sq A ,
-.Sq B ,
-.Sq ,
-.Sq D ,
-and
-.Sq E .
-This behavior is POSIX compliant, but incompatible with some other shell
-implementations which do field splitting on the word which contained the
-substitution or use
-.Dv IFS
-as a general whitespace delimiter.
-.Pp
-The results of substitution are, unless otherwise specified, also subject to
-brace expansion and file name expansion (see the relevant sections below).
-.Pp
-A command substitution is replaced by the output generated by the specified
-command which is run in a subshell.
-For
-.Pf $( Ns Ar command Ns \&)
-and
-.Pf ${\ \& Ar command Ns \&;}
-substitutions, normal quoting rules are used when
-.Ar command
-is parsed; however, for the deprecated
-.Pf \` Ns Ar command Ns \`
-form, a
-.Ql \e
-followed by any of
-.Ql $ ,
-.Ql \` ,
-or
-.Ql \e
-is stripped (a
-.Ql \e
-followed by any other character is unchanged).
-As a special case in command substitutions, a command of the form
-.Pf \*(Lt Ar file
-is interpreted to mean substitute the contents of
-.Ar file .
-Note that
-.Ic $(\*(Ltfoo)
-has the same effect as
-.Ic $(cat foo) .
-.Pp
-Note that some shells do not use a recursive parser for command substitutions,
-leading to failure for certain constructs; to be portable, use as workaround
-.Ql x=$(cat) \*(Lt\*(Lt"EOF"
-(or the newline-keeping
-.Ql x=\*(Lt\*(Lt"EOF"
-extension) instead to merely slurp the string.
-.St -p1003.1
-recommends to use case statements of the form
-.Ql "x=$(case $foo in (bar) echo $bar ;; (*) echo $baz ;; esac)"
-instead, which would work but not serve as example for this portability issue.
-.Bd -literal -offset indent
-x=$(case $foo in bar) echo $bar ;; *) echo $baz ;; esac)
-# above fails to parse on old shells; below is the workaround
-x=$(eval $(cat)) \*(Lt\*(Lt"EOF"
-case $foo in bar) echo $bar ;; *) echo $baz ;; esac
-EOF
-.Ed
-.Pp
-Arithmetic substitutions are replaced by the value of the specified expression.
-For example, the command
-.Ic print $((2+3*4))
-displays 14.
-See
-.Sx Arithmetic expressions
-for a description of an expression.
-.Ss Parameters
-Parameters are shell variables; they can be assigned values and their values
-can be accessed using a parameter substitution.
-A parameter name is either one
-of the special single punctuation or digit character parameters described
-below, or a letter followed by zero or more letters or digits
-.Po
-.Ql _
-counts as a letter
-.Pc .
-The latter form can be treated as arrays by appending an array index of the
-form
-.Op Ar expr
-where
-.Ar expr
-is an arithmetic expression.
-Array indices in
-.Nm
-are limited to the range 0 through 4294967295, inclusive.
-That is, they are a 32-bit unsigned integer.
-.Pp
-Parameter substitutions take the form
-.Pf $ Ns Ar name ,
-.Pf ${ Ns Ar name Ns } ,
-or
-.Sm off
-.Pf ${ Ar name Oo Ar expr Oc }
-.Sm on
-where
-.Ar name
-is a parameter name.
-Substitution of all array elements with
-.Pf ${ Ns Ar name Ns \&[*]}
-and
-.Pf ${ Ns Ar name Ns \&[@]}
-works equivalent to $* and $@ for positional parameters.
-If substitution is performed on a parameter
-(or an array parameter element)
-that is not set, a null string is substituted unless the
-.Ic nounset
-option
-.Po
-.Ic set Fl o Ic nounset
-or
-.Ic set Fl u
-.Pc
-is set, in which case an error occurs.
-.Pp
-Parameters can be assigned values in a number of ways.
-First, the shell implicitly sets some parameters like
-.Ql # ,
-.Ql PWD ,
-and
-.Ql $ ;
-this is the only way the special single character parameters are set.
-Second, parameters are imported from the shell's environment at startup.
-Third, parameters can be assigned values on the command line: for example,
-.Ic FOO=bar
-sets the parameter
-.Dq FOO
-to
-.Dq bar ;
-multiple parameter assignments can be given on a single command line and they
-can be followed by a simple-command, in which case the assignments are in
-effect only for the duration of the command (such assignments are also
-exported; see below for the implications of this).
-Note that both the parameter name and the
-.Ql =
-must be unquoted for the shell to recognise a parameter assignment.
-The construct
-.Ic FOO+=baz
-is also recognised; the old and new values are immediately concatenated.
-The fourth way of setting a parameter is with the
-.Ic export ,
-.Ic global ,
-.Ic readonly ,
-and
-.Ic typeset
-commands; see their descriptions in the
-.Sx Command execution
-section.
-Fifth,
-.Ic for
-and
-.Ic select
-loops set parameters as well as the
-.Ic getopts ,
-.Ic read ,
-and
-.Ic set \-A
-commands.
-Lastly, parameters can be assigned values using assignment operators
-inside arithmetic expressions (see
-.Sx Arithmetic expressions
-below) or using the
-.Sm off
-.Pf ${ Ar name No = Ar value No }
-.Sm on
-form of the parameter substitution (see below).
-.Pp
-Parameters with the export attribute (set using the
-.Ic export
-or
-.Ic typeset Fl x
-commands, or by parameter assignments followed by simple commands) are put in
-the environment (see
-.Xr environ 7 )
-of commands run by the shell as
-.Ar name Ns = Ns Ar value
-pairs.
-The order in which parameters appear in the environment of a command is
-unspecified.
-When the shell starts up, it extracts parameters and their values
-from its environment and automatically sets the export attribute for those
-parameters.
-.Pp
-Modifiers can be applied to the
-.Pf ${ Ns Ar name Ns }
-form of parameter substitution:
-.Bl -tag -width Ds
-.Sm off
-.It ${ Ar name No :\- Ar word No }
-.Sm on
-If
-.Ar name
-is set and not
-.Dv NULL ,
-it is substituted; otherwise,
-.Ar word
-is substituted.
-.Sm off
-.It ${ Ar name No :+ Ar word No }
-.Sm on
-If
-.Ar name
-is set and not
-.Dv NULL ,
-.Ar word
-is substituted; otherwise, nothing is substituted.
-.Sm off
-.It ${ Ar name No := Ar word No }
-.Sm on
-If
-.Ar name
-is set and not
-.Dv NULL ,
-it is substituted; otherwise, it is assigned
-.Ar word
-and the resulting value of
-.Ar name
-is substituted.
-.Sm off
-.It ${ Ar name No :? Ar word No }
-.Sm on
-If
-.Ar name
-is set and not
-.Dv NULL ,
-it is substituted; otherwise,
-.Ar word
-is printed on standard error (preceded by
-.Ar name : )
-and an error occurs (normally causing termination of a shell script, function,
-or script sourced using the
-.Sq \&.
-built-in).
-If
-.Ar word
-is omitted, the string
-.Dq parameter null or not set
-is used instead.
-Currently a bug, if
-.Ar word
-is a variable which expands to the null string, the
-error message is also printed.
-.El
-.Pp
-Note that, for all of the above,
-.Ar word
-is actually considered quoted, and special parsing rules apply.
-The parsing rules also differ on whether the expression is double-quoted:
-.Ar word
-then uses double-quoting rules, except for the double quote itself
-.Pq Sq \&"
-and the closing brace, which, if backslash escaped, gets quote removal applied.
-.Pp
-In the above modifiers, the
-.Ql \&:
-can be omitted, in which case the conditions only depend on
-.Ar name
-being set (as opposed to set and not
-.Dv NULL ) .
-If
-.Ar word
-is needed, parameter, command, arithmetic, and tilde substitution are performed
-on it; if
-.Ar word
-is not needed, it is not evaluated.
-.Pp
-The following forms of parameter substitution can also be used (if
-.Ar name
-is an array, its element #0 will be substituted in a scalar context):
-.Pp
-.Bl -tag -width Ds -compact
-.It Pf ${# Ns Ar name Ns \&}
-The number of positional parameters if
-.Ar name
-is
-.Ql * ,
-.Ql @ ,
-or not specified; otherwise the length
-.Pq in characters
-of the string value of parameter
-.Ar name .
-.Pp
-.It Pf ${# Ns Ar name Ns \&[*]}
-.It Pf ${# Ns Ar name Ns \&[@]}
-The number of elements in the array
-.Ar name .
-.Pp
-.It Pf ${% Ns Ar name Ns \&}
-The width
-.Pq in screen columns
-of the string value of parameter
-.Ar name ,
-or \-1 if
-.Pf ${ Ns Ar name Ns }
-contains a control character.
-.Pp
-.It Pf ${! Ns Ar name Ns }
-The name of the variable referred to by
-.Ar name .
-This will be
-.Ar name
-except when
-.Ar name
-is a name reference (bound variable), created by the
-.Ic nameref
-command (which is an alias for
-.Ic typeset Fl n ) .
-.Pp
-.It Pf ${! Ns Ar name Ns \&[*]}
-.It Pf ${! Ns Ar name Ns \&[@]}
-The names of indices (keys) in the array
-.Ar name .
-.Pp
-.Sm off
-.It Xo
-.Pf ${ Ar name
-.Pf # Ar pattern No }
-.Xc
-.It Xo
-.Pf ${ Ar name
-.Pf ## Ar pattern No }
-.Xc
-.Sm on
-If
-.Ar pattern
-matches the beginning of the value of parameter
-.Ar name ,
-the matched text is deleted from the result of substitution.
-A single
-.Ql #
-results in the shortest match, and two
-of them result in the longest match.
-Cannot be applied to a vector
-.Pq ${*} or ${@} or ${array[*]} or ${array[@]} .
-.Pp
-.Sm off
-.It Xo
-.Pf ${ Ar name
-.Pf % Ar pattern No }
-.Xc
-.It Xo
-.Pf ${ Ar name
-.Pf %% Ar pattern No }
-.Xc
-.Sm on
-Like ${..#..} substitution, but it deletes from the end of the value.
-Cannot be applied to a vector.
-.Pp
-.Sm off
-.It Xo
-.Pf ${ Ar name
-.Pf / Ar pattern / Ar string No }
-.Xc
-.It Xo
-.Pf ${ Ar name
-.Pf // Ar pattern / Ar string No }
-.Xc
-.Sm on
-Like ${..#..} substitution, but it replaces the longest match of
-.Ar pattern ,
-anchored anywhere in the value, with
-.Ar string .
-If
-.Ar pattern
-begins with
-.Ql # ,
-it is anchored at the beginning of the value; if it begins with
-.Ql % ,
-it is anchored at the end.
-Patterns that are empty or consist only of wildcards are invalid.
-A single
-.Ql /
-replaces the first occurence of the search
-.Ar pattern ,
-and two of them replace all occurences.
-If
-.Pf / Ar string
-is omitted, the
-.Ar pattern
-is replaced by the empty string, i.e. deleted.
-Cannot be applied to a vector.
-Inefficiently implemented, may be slow.
-.Pp
-.Sm off
-.It Xo
-.Pf ${ Ar name : Ns Ar pos
-.Pf : Ns Ar len Ns }
-.Xc
-.Sm on
-The first
-.Ar len
-characters of
-.Ar name ,
-starting at position
-.Ar pos ,
-are substituted.
-Both
-.Ar pos
-and
-.Pf : Ns Ar len
-are optional.
-If
-.Ar pos
-is negative, counting starts at the end of the string; if it
-is omitted, it defaults to 0.
-If
-.Ar len
-is omitted or greater than the length of the remaining string,
-all of it is substituted.
-Both
-.Ar pos
-and
-.Ar len
-are evaluated as arithmetic expressions.
-Currently,
-.Ar pos
-must start with a space, opening parenthesis or digit to be recognised.
-Cannot be applied to a vector.
-.Pp
-.It Xo
-.Pf ${ Ar name
-.Pf @# Ns Oo Ar seed Oc Ns }
-.Xc
-The internal hash of the expansion of
-.Ar name ,
-with an optional (defaulting to zero)
-.Op Ar seed .
-At the moment, this is NZAAT (a 32-bit hash based on
-Bob Jenkins' one-at-a-time hash), but this is not set.
-This is the hash the shell uses internally for its associative arrays.
-.Pp
-.It Pf ${ Ns Ar name Ns @Q}
-A quoted expression safe for re-entry, whose value is the value of the
-.Ar name
-parameter, is substituted.
-.El
-.Pp
-Note that
-.Ar pattern
-may need extended globbing pattern
-.Pq @(...) ,
-single
-.Pq \&\*(aq...\&\*(aq
-or double
-.Pq \&"...\&"
-quote escaping unless
-.Fl o Ic sh
-is set.
-.Pp
-The following special parameters are implicitly set by the shell and cannot be
-set directly using assignments:
-.Bl -tag -width "1 .. 9"
-.It Ev \&!
-Process ID of the last background process started.
-If no background processes have been started, the parameter is not set.
-.It Ev \&#
-The number of positional parameters ($1, $2, etc.).
-.It Ev \&$
-The PID of the shell, or the PID of the original shell if it is a subshell.
-Do
-.Em NOT
-use this mechanism for generating temporary file names; see
-.Xr mktemp 1
-instead.
-.It Ev \-
-The concatenation of the current single letter options (see the
-.Ic set
-command below for a list of options).
-.It Ev \&?
-The exit status of the last non-asynchronous command executed.
-If the last command was killed by a signal,
-.Ic $?\&
-is set to 128 plus the signal number.
-.It Ev 0
-The name of the shell, determined as follows:
-the first argument to
-.Nm
-if it was invoked with the
-.Fl c
-option and arguments were given; otherwise the
-.Ar file
-argument, if it was supplied;
-or else the basename the shell was invoked with (i.e.\&
-.Li argv[0] ) .
-.Ev $0
-is also set to the name of the current script or
-the name of the current function, if it was defined with the
-.Ic function
-keyword (i.e. a Korn shell style function).
-.It Ev 1 No .. Ev 9
-The first nine positional parameters that were supplied to the shell, function,
-or script sourced using the
-.Sq \&.
-built-in.
-Further positional parameters may be accessed using
-.Pf ${ Ar number Ns } .
-.It Ev *
-All positional parameters (except 0), i.e. $1, $2, $3, ...
-.br
-If used
-outside of double quotes, parameters are separate words (which are subjected
-to word splitting); if used within double quotes, parameters are separated
-by the first character of the
-.Ev IFS
-parameter (or the empty string if
-.Ev IFS
-is
-.Dv NULL ) .
-.It Ev @
-Same as
-.Ic $* ,
-unless it is used inside double quotes, in which case a separate word is
-generated for each positional parameter.
-If there are no positional parameters, no word is generated.
-.Ic $@
-can be used to access arguments, verbatim, without losing
-.Dv NULL
-arguments or splitting arguments with spaces.
-.El
-.Pp
-The following parameters are set and/or used by the shell:
-.Bl -tag -width "KSH_VERSION"
-.It Ev _
-.Pq underscore
-When an external command is executed by the shell, this parameter is set in the
-environment of the new process to the path of the executed command.
-In interactive use, this parameter is also set in the parent shell to the last
-word of the previous command.
-.It Ev BASHPID
-The PID of the shell or subshell.
-.It Ev CDPATH
-Search path for the
-.Ic cd
-built-in command.
-It works the same way as
-.Ev PATH
-for those directories not beginning with
-.Ql /
-in
-.Ic cd
-commands.
-Note that if
-.Ev CDPATH
-is set and does not contain
-.Sq \&.
-or contains an empty path, the current directory is not searched.
-Also, the
-.Ic cd
-built-in command will display the resulting directory when a match is found
-in any search path other than the empty path.
-.It Ev COLUMNS
-Set to the number of columns on the terminal or window.
-Always set, defaults to 80, unless the
-value as reported by
-.Xr stty 1
-is non-zero and sane enough (minimum is 12x3); similar for
-.Ev LINES .
-This parameter is used by the interactive line editing modes, and by the
-.Ic select ,
-.Ic set \-o ,
-and
-.Ic kill \-l
-commands to format information columns.
-Importing from the environment or unsetting this parameter removes the
-binding to the actual terminal size in favour of the provided value.
-.It Ev ENV
-If this parameter is found to be set after any profile files are executed, the
-expanded value is used as a shell startup file.
-It typically contains function and alias definitions.
-.It Ev ERRNO
-Integer value of the shell's
-.Va errno
-variable.
-It indicates the reason the last system call failed.
-Not yet implemented.
-.It Ev EXECSHELL
-If set, this parameter is assumed to contain the shell that is to be used to
-execute commands that
-.Xr execve 2
-fails to execute and which do not start with a
-.Dq #! Ns Ar shell
-sequence.
-.It Ev FCEDIT
-The editor used by the
-.Ic fc
-command (see below).
-.It Ev FPATH
-Like
-.Ev PATH ,
-but used when an undefined function is executed to locate the file defining the
-function.
-It is also searched when a command can't be found using
-.Ev PATH .
-See
-.Sx Functions
-below for more information.
-.It Ev HISTFILE
-The name of the file used to store command history.
-When assigned to, history is loaded from the specified file.
-Also, several invocations of the shell will share history if their
-.Ev HISTFILE
-parameters all point to the same file.
-.Pp
-.Sy Note :
-If
-.Ev HISTFILE
-isn't set, no history file is used.
-This is different from
-.At
-.Nm ksh .
-.It Ev HISTSIZE
-The number of commands normally stored for history.
-The default is 2047.
-.It Ev HOME
-The default directory for the
-.Ic cd
-command and the value substituted for an unqualified
-.Ic \*(TI
-(see
-.Sx Tilde expansion
-below).
-.It Ev IFS
-Internal field separator, used during substitution and by the
-.Ic read
-command, to split values into distinct arguments; normally set to space, tab,
-and newline.
-See
-.Sx Substitution
-above for details.
-.Pp
-.Sy Note :
-This parameter is not imported from the environment when the shell is
-started.
-.It Ev KSHEGID
-The effective group id of the shell.
-.It Ev KSHGID
-The real group id of the shell.
-.It Ev KSHUID
-The real user id of the shell.
-.It Ev KSH_VERSION
-The name and version of the shell (read-only).
-See also the version commands in
-.Sx Emacs editing mode
-and
-.Sx Vi editing mode
-sections, below.
-.It Ev LINENO
-The line number of the function or shell script that is currently being
-executed.
-.It Ev LINES
-Set to the number of lines on the terminal or window.
-Always set, defaults to 24.
-See
-.Ev COLUMNS .
-.It Ev EPOCHREALTIME
-Time since the epoch, as returned by
-.Xr gettimeofday 2 ,
-formatted as decimal
-.Va tv_sec
-followed by a dot
-.Pq Sq .\&
-and
-.Va tv_usec
-padded to exactly six decimal digits.
-.It Ev OLDPWD
-The previous working directory.
-Unset if
-.Ic cd
-has not successfully changed directories since the shell started, or if the
-shell doesn't know where it is.
-.It Ev OPTARG
-When using
-.Ic getopts ,
-it contains the argument for a parsed option, if it requires one.
-.It Ev OPTIND
-The index of the next argument to be processed when using
-.Ic getopts .
-Assigning 1 to this parameter causes
-.Ic getopts
-to process arguments from the beginning the next time it is invoked.
-.It Ev PATH
-A colon separated list of directories that are searched when looking for
-commands and files sourced using the
-.Sq \&.
-command (see below).
-An empty string resulting from a leading or trailing
-colon, or two adjacent colons, is treated as a
-.Sq \&.
-(the current directory).
-.It Ev PGRP
-The process ID of the shell's process group leader.
-.It Ev PIPESTATUS
-An array containing the errorlevel (exit status) codes,
-one by one, of the last pipeline run in the foreground.
-.It Ev PPID
-The process ID of the shell's parent.
-.It Ev PS1
-The primary prompt for interactive shells.
-Parameter, command, and arithmetic
-substitutions are performed, and
-.Ql \&!
-is replaced with the current command number (see the
-.Ic fc
-command below).
-A literal
-.Ql \&!
-can be put in the prompt by placing
-.Ql !!
-in
-.Ev PS1 .
-.Pp
-The default prompt is
-.Sq $\ \&
-for non-root users,
-.Sq #\ \&
-for root.
-If
-.Nm
-is invoked by root and
-.Ev PS1
-does not contain a
-.Sq #
-character, the default value will be used even if
-.Ev PS1
-already exists in the environment.
-.Pp
-The
-.Nm
-distribution comes with a sample
-.Pa dot.mkshrc
-containing a sophisticated example, but you might like the following one
-(note that ${HOSTNAME:=$(hostname)} and the
-root-vs-user distinguishing clause are (in this example) executed at
-.Ev PS1
-assignment time, while the $USER and $PWD are escaped
-and thus will be evaluated each time a prompt is displayed):
-.Bd -literal
-PS1=\*(aq${USER:=$(id \-un)}\*(aq"@${HOSTNAME:=$(hostname)}:\e$PWD $(
- if (( USER_ID )); then print \e$; else print \e#; fi) "
-.Ed
-.Pp
-Note that since the command-line editors try to figure out how long the prompt
-is (so they know how far it is to the edge of the screen), escape codes in
-the prompt tend to mess things up.
-You can tell the shell not to count certain
-sequences (such as escape codes) by prefixing your prompt with a
-character (such as Ctrl-A) followed by a carriage return and then delimiting
-the escape codes with this character.
-Any occurences of that character in the prompt are not printed.
-By the way, don't blame me for
-this hack; it's derived from the original
-.Xr ksh88 1 ,
-which did print the delimiter character so you were out of luck
-if you did not have any non-printing characters.
-.Pp
-Since Backslashes and other special characters may be
-interpreted by the shell, to set
-.Ev PS1
-either escape the backslash itself,
-or use double quotes.
-The latter is more practical.
-This is a more complex example,
-avoiding to directly enter special characters (for example with
-.Ic \*(haV
-in the emacs editing mode),
-which embeds the current working directory,
-in reverse video
-.Pq colour would work, too ,
-in the prompt string:
-.Bd -literal -offset indent
-x=$(print \e\e001)
-PS1="$x$(print \e\er)$x$(tput smso)$x\e$PWD$x$(tput rmso)$x\*(Gt "
-.Ed
-.Pp
-Due to a strong suggestion from David G. Korn,
-.Nm
-now also supports the following form:
-.Bd -literal -offset indent
-PS1=$'\e1\er\e1\ee[7m\e1$PWD\e1\ee[0m\e1\*(Gt '
-.Ed
-.It Ev PS2
-Secondary prompt string, by default
-.Sq \*(Gt\ \& ,
-used when more input is needed to complete a command.
-.It Ev PS3
-Prompt used by the
-.Ic select
-statement when reading a menu selection.
-The default is
-.Sq #?\ \& .
-.It Ev PS4
-Used to prefix commands that are printed during execution tracing (see the
-.Ic set Fl x
-command below).
-Parameter, command, and arithmetic substitutions are performed
-before it is printed.
-The default is
-.Sq +\ \& .
-You may want to set it to
-.Sq \&[$EPOCHREALTIME]\ \&
-instead, to include timestamps.
-.It Ev PWD
-The current working directory.
-May be unset or
-.Dv NULL
-if the shell doesn't know where it is.
-.It Ev RANDOM
-Each time
-.Ev RANDOM
-is referenced, it is assigned a number between 0 and 32767 from
-a Linear Congruential PRNG first.
-.It Ev REPLY
-Default parameter for the
-.Ic read
-command if no names are given.
-Also used in
-.Ic select
-loops to store the value that is read from standard input.
-.It Ev SECONDS
-The number of seconds since the shell started or, if the parameter has been
-assigned an integer value, the number of seconds since the assignment plus the
-value that was assigned.
-.It Ev TMOUT
-If set to a positive integer in an interactive shell, it specifies the maximum
-number of seconds the shell will wait for input after printing the primary
-prompt
-.Pq Ev PS1 .
-If the time is exceeded, the shell exits.
-.It Ev TMPDIR
-The directory temporary shell files are created in.
-If this parameter is not
-set, or does not contain the absolute path of a writable directory, temporary
-files are created in
-.Pa /tmp .
-.It Ev USER_ID
-The effective user id of the shell.
-.El
-.Ss Tilde expansion
-Tilde expansion which is done in parallel with parameter substitution, is done
-on words starting with an unquoted
-.Ql \*(TI .
-The characters following the tilde, up to the first
-.Ql / ,
-if any, are assumed to be a login name.
-If the login name is empty,
-.Ql + ,
-or
-.Ql \- ,
-the value of the
-.Ev HOME ,
-.Ev PWD ,
-or
-.Ev OLDPWD
-parameter is substituted, respectively.
-Otherwise, the password file is
-searched for the login name, and the tilde expression is substituted with the
-user's home directory.
-If the login name is not found in the password file or
-if any quoting or parameter substitution occurs in the login name, no
-substitution is performed.
-.Pp
-In parameter assignments
-(such as those preceding a simple-command or those occurring
-in the arguments of
-.Ic alias ,
-.Ic export ,
-.Ic global ,
-.Ic readonly ,
-and
-.Ic typeset ) ,
-tilde expansion is done after any assignment
-(i.e. after the equals sign)
-or after an unquoted colon
-.Pq Sq \&: ;
-login names are also delimited by colons.
-.Pp
-The home directory of previously expanded login names are cached and re-used.
-The
-.Ic alias \-d
-command may be used to list, change, and add to this cache (e.g.\&
-.Ic alias \-d fac=/usr/local/facilities; cd \*(TIfac/bin ) .
-.Ss Brace expansion (alteration)
-Brace expressions take the following form:
-.Bd -unfilled -offset indent
-.Sm off
-.Xo
-.Ar prefix No { Ar str1 No ,...,
-.Ar strN No } Ar suffix
-.Xc
-.Sm on
-.Ed
-.Pp
-The expressions are expanded to
-.Ar N
-words, each of which is the concatenation of
-.Ar prefix ,
-.Ar str Ns i ,
-and
-.Ar suffix
-(e.g.\&
-.Dq a{c,b{X,Y},d}e
-expands to four words:
-.Dq ace ,
-.Dq abXe ,
-.Dq abYe ,
-and
-.Dq ade ) .
-As noted in the example, brace expressions can be nested and the resulting
-words are not sorted.
-Brace expressions must contain an unquoted comma
-.Pq Sq \&,
-for expansion to occur (e.g.\&
-.Ic {}
-and
-.Ic {foo}
-are not expanded).
-Brace expansion is carried out after parameter substitution
-and before file name generation.
-.Ss File name patterns
-A file name pattern is a word containing one or more unquoted
-.Ql \&? ,
-.Ql * ,
-.Ql + ,
-.Ql @ ,
-or
-.Ql \&!
-characters or
-.Dq \&[..]
-sequences.
-Once brace expansion has been performed, the shell replaces file
-name patterns with the sorted names of all the files that match the pattern
-(if no files match, the word is left unchanged).
-The pattern elements have the following meaning:
-.Bl -tag -width Ds
-.It \&?
-Matches any single character.
-.It \&*
-Matches any sequence of octets.
-.It \&[..]
-Matches any of the octets inside the brackets.
-Ranges of octets can be specified by separating two octets by a
-.Ql \-
-(e.g.\&
-.Dq \&[a0\-9]
-matches the letter
-.Sq a
-or any digit).
-In order to represent itself, a
-.Ql \-
-must either be quoted or the first or last octet in the octet list.
-Similarly, a
-.Ql \&]
-must be quoted or the first octet in the list if it is to represent itself
-instead of the end of the list.
-Also, a
-.Ql \&!
-appearing at the start of the list has special meaning (see below), so to
-represent itself it must be quoted or appear later in the list.
-.It \&[!..]
-Like [..],
-except it matches any octet not inside the brackets.
-.Sm off
-.It *( Ar pattern\*(Ba No ...\*(Ba Ar pattern )
-.Sm on
-Matches any string of octets that matches zero or more occurrences of the
-specified patterns.
-Example: The pattern
-.Ic *(foo\*(Babar)
-matches the strings
-.Dq ,
-.Dq foo ,
-.Dq bar ,
-.Dq foobarfoo ,
-etc.
-.Sm off
-.It +( Ar pattern\*(Ba No ...\*(Ba Ar pattern )
-.Sm on
-Matches any string of octets that matches one or more occurrences of the
-specified patterns.
-Example: The pattern
-.Ic +(foo\*(Babar)
-matches the strings
-.Dq foo ,
-.Dq bar ,
-.Dq foobar ,
-etc.
-.Sm off
-.It ?( Ar pattern\*(Ba No ...\*(Ba Ar pattern )
-.Sm on
-Matches the empty string or a string that matches one of the specified
-patterns.
-Example: The pattern
-.Ic ?(foo\*(Babar)
-only matches the strings
-.Dq ,
-.Dq foo ,
-and
-.Dq bar .
-.Sm off
-.It @( Ar pattern\*(Ba No ...\*(Ba Ar pattern )
-.Sm on
-Matches a string that matches one of the specified patterns.
-Example: The pattern
-.Ic @(foo\*(Babar)
-only matches the strings
-.Dq foo
-and
-.Dq bar .
-.Sm off
-.It !( Ar pattern\*(Ba No ...\*(Ba Ar pattern )
-.Sm on
-Matches any string that does not match one of the specified patterns.
-Examples: The pattern
-.Ic !(foo\*(Babar)
-matches all strings except
-.Dq foo
-and
-.Dq bar ;
-the pattern
-.Ic !(*)
-matches no strings; the pattern
-.Ic !(?)*\&
-matches all strings (think about it).
-.El
-.Pp
-Note that complicated globbing, especially with alternatives,
-is slow; using separate comparisons may (or may not) be faster.
-.Pp
-Note that
-.Nm mksh
-.Po and Nm pdksh Pc
-never matches
-.Sq \&.
-and
-.Sq .. ,
-but
-.At
-.Nm ksh ,
-Bourne
-.Nm sh ,
-and GNU
-.Nm bash
-do.
-.Pp
-Note that none of the above pattern elements match either a period
-.Pq Sq \&.
-at the start of a file name or a slash
-.Pq Sq / ,
-even if they are explicitly used in a [..] sequence; also, the names
-.Sq \&.
-and
-.Sq ..
-are never matched, even by the pattern
-.Sq .* .
-.Pp
-If the
-.Ic markdirs
-option is set, any directories that result from file name generation are marked
-with a trailing
-.Ql / .
-.Ss Input/output redirection
-When a command is executed, its standard input, standard output, and standard
-error (file descriptors 0, 1, and 2, respectively) are normally inherited from
-the shell.
-Three exceptions to this are commands in pipelines, for which
-standard input and/or standard output are those set up by the pipeline,
-asynchronous commands created when job control is disabled, for which standard
-input is initially set to be from
-.Pa /dev/null ,
-and commands for which any of the following redirections have been specified:
-.Bl -tag -width XXxxmarker
-.It \*(Gt Ar file
-Standard output is redirected to
-.Ar file .
-If
-.Ar file
-does not exist, it is created; if it does exist, is a regular file, and the
-.Ic noclobber
-option is set, an error occurs; otherwise, the file is truncated.
-Note that this means the command
-.Ic cmd \*(Ltfoo \*(Gtfoo
-will open
-.Ar foo
-for reading and then truncate it when it opens it for writing, before
-.Ar cmd
-gets a chance to actually read
-.Ar foo .
-.It \*(Gt\*(Ba Ar file
-Same as
-.Ic \*(Gt ,
-except the file is truncated, even if the
-.Ic noclobber
-option is set.
-.It \*(Gt\*(Gt Ar file
-Same as
-.Ic \*(Gt ,
-except if
-.Ar file
-exists it is appended to instead of being truncated.
-Also, the file is opened
-in append mode, so writes always go to the end of the file (see
-.Xr open 2 ) .
-.It \*(Lt Ar file
-Standard input is redirected from
-.Ar file ,
-which is opened for reading.
-.It \*(Lt\*(Gt Ar file
-Same as
-.Ic \*(Lt ,
-except the file is opened for reading and writing.
-.It \*(Lt\*(Lt Ar marker
-After reading the command line containing this kind of redirection (called a
-.Dq here document ) ,
-the shell copies lines from the command source into a temporary file until a
-line matching
-.Ar marker
-is read.
-When the command is executed, standard input is redirected from the
-temporary file.
-If
-.Ar marker
-contains no quoted characters, the contents of the temporary file are processed
-as if enclosed in double quotes each time the command is executed, so
-parameter, command, and arithmetic substitutions are performed, along with
-backslash
-.Pq Sq \e
-escapes for
-.Ql $ ,
-.Ql \` ,
-.Ql \e ,
-and
-.Ql \enewline ,
-but not for
-.Ql \&" .
-If multiple here documents are used on the same command line, they are saved in
-order.
-.Pp
-If no
-.Ar marker
-is given, the here document ends at the next
-.Ic \*(Lt\*(Lt
-and substitution will be performed.
-If
-.Ar marker
-is only a set of either single
-.Dq \*(aq\*(aq
-or double
-.Sq \&""
-quotes with nothing in between, the here document ends at the next empty line
-and substitution will not be performed.
-.It \*(Lt\*(Lt\- Ar marker
-Same as
-.Ic \*(Lt\*(Lt ,
-except leading tabs are stripped from lines in the here document.
-.It \*(Lt\*(Lt\*(Lt Ar word
-Same as
-.Ic \*(Lt\*(Lt ,
-except that
-.Ar word
-.Em is
-the here document.
-This is called a here string.
-.It \*(Lt& Ar fd
-Standard input is duplicated from file descriptor
-.Ar fd .
-.Ar fd
-can be a number, indicating the number of an existing file descriptor;
-the letter
-.Ql p ,
-indicating the file descriptor associated with the output of the current
-co-process; or the character
-.Ql \- ,
-indicating standard input is to be closed.
-Note that
-.Ar fd
-is limited to a single digit in most shell implementations.
-.It \*(Gt& Ar fd
-Same as
-.Ic \*(Lt& ,
-except the operation is done on standard output.
-.It &\*(Gt Ar file
-Same as
-.Ic \*(Gt Ar file 2\*(Gt&1 .
-This is a GNU
-.Nm bash
-extension supported by
-.Nm
-which also supports the preceding explicit fd number, for example,
-.Ic 3&\*(Gt Ar file
-is the same as
-.Ic 3\*(Gt Ar file 2\*(Gt&3
-in
-.Nm
-but a syntax error in GNU
-.Nm bash .
-Setting the
-.Fl o Ar posix
-or
-.Fl o Ar sh
-shell options disable parsing of this redirection;
-it's a compatibility feature to legacy scripts, to
-not be used when writing new shell code.
-.It Xo
-.No &\*(Gt\*(Ba Ar file ,
-.No &\*(Gt\*(Gt Ar file ,
-.No &\*(Gt& Ar fd
-.Xc
-Same as
-.Ic \*(Gt\*(Ba Ar file ,
-.Ic \*(Gt\*(Gt Ar file ,
-or
-.Ic \*(Gt& Ar fd ,
-followed by
-.Ic 2\*(Gt&1 ,
-as above.
-These are
-.Nm
-extensions.
-.El
-.Pp
-In any of the above redirections, the file descriptor that is redirected
-(i.e. standard input or standard output)
-can be explicitly given by preceding the
-redirection with a number (portably, only a single digit).
-Parameter, command, and arithmetic
-substitutions, tilde substitutions, and (if the shell is interactive)
-file name generation are all performed on the
-.Ar file ,
-.Ar marker ,
-and
-.Ar fd
-arguments of redirections.
-Note, however, that the results of any file name
-generation are only used if a single file is matched; if multiple files match,
-the word with the expanded file name generation characters is used.
-Note
-that in restricted shells, redirections which can create files cannot be used.
-.Pp
-For simple-commands, redirections may appear anywhere in the command; for
-compound-commands
-.Po
-.Ic if
-statements, etc.
-.Pc ,
-any redirections must appear at the end.
-Redirections are processed after
-pipelines are created and in the order they are given, so the following
-will print an error with a line number prepended to it:
-.Pp
-.D1 $ cat /foo/bar 2\*(Gt&1 \*(Gt/dev/null \*(Ba pr \-n \-t
-.Pp
-File descriptors created by input/output redirections are private to the
-Korn shell, but passed to sub-processes if
-.Fl o Ic posix
-or
-.Fl o Ic sh
-is set.
-.Ss Arithmetic expressions
-Integer arithmetic expressions can be used with the
-.Ic let
-command, inside $((..)) expressions, inside array references (e.g.\&
-.Ar name Ns Bq Ar expr ) ,
-as numeric arguments to the
-.Ic test
-command, and as the value of an assignment to an integer parameter.
-.Pp
-Expressions are calculated using signed arithmetic and the
-.Vt mksh_ari_t
-type (a 32-bit signed integer), unless they begin with a sole
-.Sq #
-character, in which case they use
-.Vt mksh_uari_t
-.Po a 32-bit unsigned integer Pc .
-.Pp
-Expressions may contain alpha-numeric parameter identifiers, array references,
-and integer constants and may be combined with the following C operators
-(listed and grouped in increasing order of precedence):
-.Pp
-Unary operators:
-.Bd -literal -offset indent
-+ \- ! \*(TI ++ \-\-
-.Ed
-.Pp
-Binary operators:
-.Bd -literal -offset indent
-,
-= += \-= *= /= %= \*(Lt\*(Lt\*(Lt= \*(Gt\*(Gt\*(Gt= \*(Lt\*(Lt= \*(Gt\*(Gt= &= \*(ha= \*(Ba=
-\*(Ba\*(Ba
-&&
-\*(Ba
-\*(ha
-&
-== !=
-\*(Lt \*(Lt= \*(Gt \*(Gt=
-\*(Lt\*(Lt\*(Lt \*(Gt\*(Gt\*(Gt \*(Lt\*(Lt \*(Gt\*(Gt
-+ \-
-* / %
-.Ed
-.Pp
-Ternary operators:
-.Bd -literal -offset indent
-?: (precedence is immediately higher than assignment)
-.Ed
-.Pp
-Grouping operators:
-.Bd -literal -offset indent
-( )
-.Ed
-.Pp
-Integer constants and expressions are calculated using an exactly 32-bit
-wide, signed or unsigned, type with silent wraparound on integer overflow.
-Integer constants may be specified with arbitrary bases using the notation
-.Ar base Ns # Ns Ar number ,
-where
-.Ar base
-is a decimal integer specifying the base, and
-.Ar number
-is a number in the specified base.
-Additionally, base-16 integers may be specified by prefixing them with
-.Sq 0x
-.Pq case-insensitive
-in all forms of arithmetic expressions, except as numeric arguments to the
-.Ic test
-built-in command.
-Prefixing numbers with a sole digit zero
-.Pq Sq 0
-leads to the shell interpreting it as base-8 integer in
-.Ic posix
-mode
-.Em only ;
-historically, (pd)ksh has never done so either anyway,
-and it's unsafe to do that, but POSIX demands it nowadays.
-As a special
-.Nm mksh
-extension, numbers to the base of one are treated as either (8-bit
-transparent) ASCII or Unicode codepoints, depending on the shell's
-.Ic utf8\-mode
-flag (current setting).
-The
-.At
-.Nm ksh93
-syntax of
-.Dq \*(aqx\*(aq
-instead of
-.Dq 1#x
-is also supported.
-Note that NUL bytes (integral value of zero) cannot be used.
-An unset or empty parameter evaluates to 0 in integer context.
-In Unicode mode, raw octets are mapped into the range EF80..EFFF as in
-OPTU-8, which is in the PUA and has been assigned by CSUR for this use.
-If more than one octet in ASCII mode, or a sequence of more than one
-octet not forming a valid and minimal CESU-8 sequence is passed, the
-behaviour is undefined (usually, the shell aborts with a parse error,
-but rarely, it succeeds, e.g. on the sequence C2 20).
-That's why you should always use ASCII mode unless you know that the
-input is well-formed UTF-8 in the range of 0000..FFFD.
-.Pp
-The operators are evaluated as follows:
-.Bl -tag -width Ds -offset indent
-.It unary +
-Result is the argument (included for completeness).
-.It unary \-
-Negation.
-.It \&!
-Logical NOT;
-the result is 1 if argument is zero, 0 if not.
-.It \*(TI
-Arithmetic (bit-wise) NOT.
-.It ++
-Increment; must be applied to a parameter (not a literal or other expression).
-The parameter is incremented by 1.
-When used as a prefix operator, the result
-is the incremented value of the parameter; when used as a postfix operator, the
-result is the original value of the parameter.
-.It \-\-
-Similar to
-.Ic ++ ,
-except the parameter is decremented by 1.
-.It \&,
-Separates two arithmetic expressions; the left-hand side is evaluated first,
-then the right.
-The result is the value of the expression on the right-hand side.
-.It =
-Assignment; the variable on the left is set to the value on the right.
-.It Xo
-.No += \-= *= /= %= \*(Lt\*(Lt\*(Lt= \*(Gt\*(Gt\*(Gt=
-.No \*(Lt\*(Lt= \*(Gt\*(Gt= &= \*(ha= \*(Ba=
-.Xc
-Assignment operators.
-.Sm off
-.Ao Ar var Ac Xo
-.Aq Ar op
-.No = Aq Ar expr
-.Xc
-.Sm on
-is the same as
-.Sm off
-.Ao Ar var Ac Xo
-.No = Aq Ar var
-.Aq Ar op
-.Aq Ar expr ,
-.Xc
-.Sm on
-with any operator precedence in
-.Aq Ar expr
-preserved.
-For example,
-.Dq var1 *= 5 + 3
-is the same as specifying
-.Dq var1 = var1 * (5 + 3) .
-.It \*(Ba\*(Ba
-Logical OR;
-the result is 1 if either argument is non-zero, 0 if not.
-The right argument is evaluated only if the left argument is zero.
-.It &&
-Logical AND;
-the result is 1 if both arguments are non-zero, 0 if not.
-The right argument is evaluated only if the left argument is non-zero.
-.It \*(Ba
-Arithmetic (bit-wise) OR.
-.It \*(ha
-Arithmetic (bit-wise) XOR
-(exclusive-OR).
-.It &
-Arithmetic (bit-wise) AND.
-.It ==
-Equal; the result is 1 if both arguments are equal, 0 if not.
-.It !=
-Not equal; the result is 0 if both arguments are equal, 1 if not.
-.It \*(Lt
-Less than; the result is 1 if the left argument is less than the right, 0 if
-not.
-.It \*(Lt= \*(Gt \*(Gt=
-Less than or equal, greater than or equal, greater than.
-See
-.Ic \*(Lt .
-.It \*(Lt\*(Lt\*(Lt \*(Gt\*(Gt\*(Gt
-Rotate left (right); the result is similar to shift (see
-.Ic \*(Lt\*(Lt )
-except that the bits shifted out at one end are shifted in
-at the other end, instead of zero or sign bits.
-.It \*(Lt\*(Lt \*(Gt\*(Gt
-Shift left (right); the result is the left argument with its bits shifted left
-(right) by the amount given in the right argument.
-.It + \- * /
-Addition, subtraction, multiplication, and division.
-.It %
-Remainder; the result is the remainder of the division of the left argument by
-the right.
-.It Xo
-.Sm off
-.Aq Ar arg1 ?
-.Aq Ar arg2 :
-.Aq Ar arg3
-.Sm on
-.Xc
-If
-.Aq Ar arg1
-is non-zero, the result is
-.Aq Ar arg2 ;
-otherwise the result is
-.Aq Ar arg3 .
-The non-result argument is not evaluated.
-.El
-.Ss Co-processes
-A co-process (which is a pipeline created with the
-.Sq \*(Ba&
-operator) is an asynchronous process that the shell can both write to (using
-.Ic print \-p )
-and read from (using
-.Ic read \-p ) .
-The input and output of the co-process can also be manipulated using
-.Ic \*(Gt&p
-and
-.Ic \*(Lt&p
-redirections, respectively.
-Once a co-process has been started, another can't
-be started until the co-process exits, or until the co-process's input has been
-redirected using an
-.Ic exec Ar n Ns Ic \*(Gt&p
-redirection.
-If a co-process's input is redirected in this way, the next
-co-process to be started will share the output with the first co-process,
-unless the output of the initial co-process has been redirected using an
-.Ic exec Ar n Ns Ic \*(Lt&p
-redirection.
-.Pp
-Some notes concerning co-processes:
-.Bl -bullet
-.It
-The only way to close the co-process's input (so the co-process reads an
-end-of-file) is to redirect the input to a numbered file descriptor and then
-close that file descriptor:
-.Ic exec 3\*(Gt&p; exec 3\*(Gt&\-
-.It
-In order for co-processes to share a common output, the shell must keep the
-write portion of the output pipe open.
-This means that end-of-file will not be
-detected until all co-processes sharing the co-process's output have exited
-(when they all exit, the shell closes its copy of the pipe).
-This can be
-avoided by redirecting the output to a numbered file descriptor (as this also
-causes the shell to close its copy).
-Note that this behaviour is slightly
-different from the original Korn shell which closes its copy of the write
-portion of the co-process output when the most recently started co-process
-(instead of when all sharing co-processes) exits.
-.It
-.Ic print \-p
-will ignore
-.Dv SIGPIPE
-signals during writes if the signal is not being trapped or ignored; the same
-is true if the co-process input has been duplicated to another file descriptor
-and
-.Ic print \-u Ns Ar n
-is used.
-.El
-.Ss Functions
-Functions are defined using either Korn shell
-.Ic function Ar function-name
-syntax or the Bourne/POSIX shell
-.Ar function-name Ns \&()
-syntax (see below for the difference between the two forms).
-Functions are like
-.Li .\(hyscripts
-(i.e. scripts sourced using the
-.Sq \&.
-built-in)
-in that they are executed in the current environment.
-However, unlike
-.Li .\(hyscripts ,
-shell arguments (i.e. positional parameters $1, $2, etc.)\&
-are never visible inside them.
-When the shell is determining the location of a command, functions
-are searched after special built-in commands, before builtins and the
-.Ev PATH
-is searched.
-.Pp
-An existing function may be deleted using
-.Ic unset Fl f Ar function-name .
-A list of functions can be obtained using
-.Ic typeset +f
-and the function definitions can be listed using
-.Ic typeset \-f .
-The
-.Ic autoload
-command (which is an alias for
-.Ic typeset \-fu )
-may be used to create undefined functions: when an undefined function is
-executed, the shell searches the path specified in the
-.Ev FPATH
-parameter for a file with the same name as the function which, if found, is
-read and executed.
-If after executing the file the named function is found to
-be defined, the function is executed; otherwise, the normal command search is
-continued (i.e. the shell searches the regular built-in command table and
-.Ev PATH ) .
-Note that if a command is not found using
-.Ev PATH ,
-an attempt is made to autoload a function using
-.Ev FPATH
-(this is an undocumented feature of the original Korn shell).
-.Pp
-Functions can have two attributes,
-.Dq trace
-and
-.Dq export ,
-which can be set with
-.Ic typeset \-ft
-and
-.Ic typeset \-fx ,
-respectively.
-When a traced function is executed, the shell's
-.Ic xtrace
-option is turned on for the function's duration.
-The
-.Dq export
-attribute of functions is currently not used.
-In the original Korn shell,
-exported functions are visible to shell scripts that are executed.
-.Pp
-Since functions are executed in the current shell environment, parameter
-assignments made inside functions are visible after the function completes.
-If this is not the desired effect, the
-.Ic typeset
-command can be used inside a function to create a local parameter.
-Note that
-.At
-.Nm ksh93
-uses static scoping (one global scope, one local scope per function)
-and allows local variables only on Korn style functions, whereas
-.Nm mksh
-uses dynamic scoping (nested scopes of varying locality).
-Note that special parameters (e.g.\&
-.Ic \&$$ , $! )
-can't be scoped in this way.
-.Pp
-The exit status of a function is that of the last command executed in the
-function.
-A function can be made to finish immediately using the
-.Ic return
-command; this may also be used to explicitly specify the exit status.
-.Pp
-Functions defined with the
-.Ic function
-reserved word are treated differently in the following ways from functions
-defined with the
-.Ic \&()
-notation:
-.Bl -bullet
-.It
-The $0 parameter is set to the name of the function
-(Bourne-style functions leave $0 untouched).
-.It
-Parameter assignments preceding function calls are not kept in the shell
-environment (executing Bourne-style functions will keep assignments).
-.It
-.Ev OPTIND
-is saved/reset and restored on entry and exit from the function so
-.Ic getopts
-can be used properly both inside and outside the function (Bourne-style
-functions leave
-.Ev OPTIND
-untouched, so using
-.Ic getopts
-inside a function interferes with using
-.Ic getopts
-outside the function).
-.It
-Bourne-style function definitions take precedence over alias dereferences
-and remove alias definitions upon encounter, while aliases take precedence
-over Korn-style functions.
-.El
-.Pp
-In the future, the following differences may also be added:
-.Bl -bullet
-.It
-A separate trap/signal environment will be used during the execution of
-functions.
-This will mean that traps set inside a function will not affect the
-shell's traps and signals that are not ignored in the shell (but may be
-trapped) will have their default effect in a function.
-.It
-The EXIT trap, if set in a function, will be executed after the function
-returns.
-.El
-.Ss Command execution
-After evaluation of command-line arguments, redirections, and parameter
-assignments, the type of command is determined: a special built-in command,
-a function, a normal builtin, or the name of a file to execute found using the
-.Ev PATH
-parameter.
-The checks are made in the above order.
-Special built-in commands differ from other commands in that the
-.Ev PATH
-parameter is not used to find them, an error during their execution can
-cause a non-interactive shell to exit, and parameter assignments that are
-specified before the command are kept after the command completes.
-Regular built-in commands are different only in that the
-.Ev PATH
-parameter is not used to find them.
-.Pp
-The original
-.Nm ksh
-and POSIX differ somewhat in which commands are considered
-special or regular.
-.Pp
-POSIX special built-in utilities:
-.Pp
-.Ic \&. , \&: , break , continue ,
-.Ic eval , exec , exit , export ,
-.Ic readonly , return , set , shift ,
-.Ic times , trap , unset
-.Pp
-Additional
-.Nm
-commands keeping assignments:
-.Pp
-.Ic builtin , global , typeset , wait
-.Pp
-Builtins that are not special:
-.Pp
-.Ic [ , alias , bg , bind ,
-.Ic cat , cd , command , echo ,
-.Ic false , fc , fg , getopts ,
-.Ic jobs , kill , let , mknod ,
-.Ic print , pwd , read , realpath ,
-.Ic rename , sleep , test , true ,
-.Ic ulimit , umask , unalias , whence
-.Pp
-Once the type of command has been determined, any command-line parameter
-assignments are performed and exported for the duration of the command.
-.Pp
-The following describes the special and regular built-in commands:
-.Pp
-.Bl -tag -width false -compact
-.It Ic \&. Ar file Op Ar arg ...
-This is called the
-.Dq dot
-command.
-Execute the commands in
-.Ar file
-in the current environment.
-The file is searched for in the directories of
-.Ev PATH .
-If arguments are given, the positional parameters may be used to access them
-while
-.Ar file
-is being executed.
-If no arguments are given, the positional parameters are
-those of the environment the command is used in.
-.Pp
-.It Ic \&: Op Ar ...
-The null command.
-Exit status is set to zero.
-.Pp
-.It Ic \&[ Ar expression Ic \&]
-See
-.Ic test .
-.Pp
-.It Xo Ic alias
-.Oo Fl d \*(Ba t Oo Fl r Oc \*(Ba
-.Cm +\-x Oc
-.Op Fl p
-.Op Cm +
-.Oo Ar name
-.Op Ns = Ns Ar value
-.Ar ... Oc
-.Xc
-Without arguments,
-.Ic alias
-lists all aliases.
-For any name without a value, the existing alias is listed.
-Any name with a value defines an alias (see
-.Sx Aliases
-above).
-.Pp
-When listing aliases, one of two formats is used.
-Normally, aliases are listed as
-.Ar name Ns = Ns Ar value ,
-where
-.Ar value
-is quoted.
-If options were preceded with
-.Ql + ,
-or a lone
-.Ql +
-is given on the command line, only
-.Ar name
-is printed.
-.Pp
-The
-.Fl d
-option causes directory aliases which are used in tilde expansion to be
-listed or set (see
-.Sx Tilde expansion
-above).
-.Pp
-If the
-.Fl p
-option is used, each alias is prefixed with the string
-.Dq alias\ \& .
-.Pp
-The
-.Fl t
-option indicates that tracked aliases are to be listed/set (values specified on
-the command line are ignored for tracked aliases).
-The
-.Fl r
-option indicates that all tracked aliases are to be reset.
-.Pp
-The
-.Fl x
-option sets
-.Pq Ic +x No clears
-the export attribute of an alias, or, if no names are given, lists the aliases
-with the export attribute (exporting an alias has no effect).
-.Pp
-.It Ic bg Op Ar job ...
-Resume the specified stopped job(s) in the background.
-If no jobs are specified,
-.Ic %+
-is assumed.
-See
-.Sx Job control
-below for more information.
-.Pp
-.It Ic bind Op Fl l
-The current bindings are listed.
-If the
-.Fl l
-flag is given,
-.Ic bind
-instead lists the names of the functions to which keys may be bound.
-See
-.Sx Emacs editing mode
-for more information.
-.Pp
-.It Xo Ic bind Op Fl m
-.Ar string Ns = Ns Op Ar substitute
-.Ar ...
-.Xc
-.It Xo Ic bind
-.Ar string Ns = Ns Op Ar editing-command
-.Ar ...
-.Xc
-The specified editing command is bound to the given
-.Ar string ,
-which should consist of a control character
-optionally preceded by one of the two prefix characters
-and optionally succeded by a tilde character.
-Future input of the
-.Ar string
-will cause the editing command to be immediately invoked.
-If the
-.Fl m
-flag is given, the specified input
-.Ar string
-will afterwards be immediately replaced by the given
-.Ar substitute
-string which may contain editing commands but not other macros.
-If a tilde postfix is given, a tilde trailing the one or
-two prefices and the control character is ignored, any
-other trailing character will be processed afterwards.
-.Pp
-Control characters may be written using caret notation
-i.e. \*(haX represents Ctrl-X.
-Note that although only two prefix characters (usually ESC and \*(haX)
-are supported, some multi-character sequences can be supported.
-.Pp
-The following default bindings show how the arrow keys, the home, end and
-delete key on a BSD wsvt25, xterm\-xfree86 or GNU screen terminal are bound
-(of course some escape sequences won't work out quite this nicely):
-.Bd -literal -offset indent
-bind \*(aq\*(haX\*(aq=prefix\-2
-bind \*(aq\*(ha[[\*(aq=prefix\-2
-bind \*(aq\*(haXA\*(aq=up\-history
-bind \*(aq\*(haXB\*(aq=down\-history
-bind \*(aq\*(haXC\*(aq=forward\-char
-bind \*(aq\*(haXD\*(aq=backward\-char
-bind \*(aq\*(haX1\*(TI\*(aq=beginning\-of\-line
-bind \*(aq\*(haX7\*(TI\*(aq=beginning\-of\-line
-bind \*(aq\*(haXH\*(aq=beginning\-of\-line
-bind \*(aq\*(haX4\*(TI\*(aq=end\-of\-line
-bind \*(aq\*(haX8\*(TI\*(aq=end\-of\-line
-bind \*(aq\*(haXF\*(aq=end\-of\-line
-bind \*(aq\*(haX3\*(TI\*(aq=delete\-char\-forward
-.Ed
-.Pp
-.It Ic break Op Ar level
-Exit the
-.Ar level Ns th
-inner-most
-.Ic for ,
-.Ic select ,
-.Ic until ,
-or
-.Ic while
-loop.
-.Ar level
-defaults to 1.
-.Pp
-.It Xo
-.Ic builtin
-.Op Fl \-
-.Ar command Op Ar arg ...
-.Xc
-Execute the built-in command
-.Ar command .
-.Pp
-.It Xo
-.Ic cat
-.Op Fl u
-.Op Ar
-.Xc
-Read files sequentially, in command line order, and write them to
-standard output.
-If a
-.Ar file
-is a single dash
-.Pq Sq -
-or absent, read from standard input.
-Unless compiled with
-.Dv MKSH_NO_EXTERNAL_CAT ,
-if any options are given, an external
-.Xr cat 1
-utility is invoked instead if called from the shell.
-For direct builtin calls, the
-.Tn POSIX
-.Fl u
-option is supported as a no-op.
-.Pp
-.It Xo
-.Ic cd
-.Op Fl L
-.Op Ar dir
-.Xc
-.It Xo
-.Ic cd
-.Fl P Op Fl e
-.Op Ar dir
-.Xc
-.It Xo
-.Ic chdir
-.Op Fl eLP
-.Op Ar dir
-.Xc
-Set the working directory to
-.Ar dir .
-If the parameter
-.Ev CDPATH
-is set, it lists the search path for the directory containing
-.Ar dir .
-A
-.Dv NULL
-path means the current directory.
-If
-.Ar dir
-is found in any component of the
-.Ev CDPATH
-search path other than the
-.Dv NULL
-path, the name of the new working directory will be written to standard output.
-If
-.Ar dir
-is missing, the home directory
-.Ev HOME
-is used.
-If
-.Ar dir
-is
-.Ql \- ,
-the previous working directory is used (see the
-.Ev OLDPWD
-parameter).
-.Pp
-If the
-.Fl L
-option (logical path) is used or if the
-.Ic physical
-option isn't set (see the
-.Ic set
-command below), references to
-.Sq ..
-in
-.Ar dir
-are relative to the path used to get to the directory.
-If the
-.Fl P
-option (physical path) is used or if the
-.Ic physical
-option is set,
-.Sq ..
-is relative to the filesystem directory tree.
-The
-.Ev PWD
-and
-.Ev OLDPWD
-parameters are updated to reflect the current and old working directory,
-respectively.
-If the
-.Fl e
-option is set for physical filesystem traversal, and
-.Ev PWD
-could not be set, the exit code is 1; greater than 1 if an
-error occurred, 0 otherwise.
-.Pp
-.It Xo
-.Ic cd
-.Op Fl eLP
-.Ar old new
-.Xc
-.It Xo
-.Ic chdir
-.Op Fl eLP
-.Ar old new
-.Xc
-The string
-.Ar new
-is substituted for
-.Ar old
-in the current directory, and the shell attempts to change to the new
-directory.
-.Pp
-.It Xo
-.Ic command
-.Op Fl pVv
-.Ar cmd
-.Op Ar arg ...
-.Xc
-If neither the
-.Fl v
-nor
-.Fl V
-option is given,
-.Ar cmd
-is executed exactly as if
-.Ic command
-had not been specified, with two exceptions:
-firstly,
-.Ar cmd
-cannot be a shell function;
-and secondly, special built-in commands lose their specialness
-(i.e. redirection and utility errors do not cause the shell to
-exit, and command assignments are not permanent).
-.Pp
-If the
-.Fl p
-option is given, a default search path is used instead of the current value of
-.Ev PATH ,
-the actual value of which is system dependent.
-.Pp
-If the
-.Fl v
-option is given, instead of executing
-.Ar cmd ,
-information about what would be executed is given (and the same is done for
-.Ar arg ... ) .
-For special and regular built-in commands and functions, their names are simply
-printed; for aliases, a command that defines them is printed; and for commands
-found by searching the
-.Ev PATH
-parameter, the full path of the command is printed.
-If no command is found
-(i.e. the path search fails), nothing is printed and
-.Ic command
-exits with a non-zero status.
-The
-.Fl V
-option is like the
-.Fl v
-option, except it is more verbose.
-.Pp
-.It Ic continue Op Ar level
-Jumps to the beginning of the
-.Ar level Ns th
-inner-most
-.Ic for ,
-.Ic select ,
-.Ic until ,
-or
-.Ic while
-loop.
-.Ar level
-defaults to 1.
-.Pp
-.It Xo
-.Ic echo
-.Op Fl Een
-.Op Ar arg ...
-.Xc
-.Em Warning:
-this utility is not portable; use the Korn shell builtin
-.Ic print
-instead.
-.Pp
-Prints its arguments (separated by spaces) followed by a newline, to the
-standard output.
-The newline is suppressed if any of the arguments contain the
-backslash sequence
-.Ql \ec .
-See the
-.Ic print
-command below for a list of other backslash sequences that are recognised.
-.Pp
-The options are provided for compatibility with
-.Bx
-shell scripts.
-The
-.Fl n
-option suppresses the trailing newline,
-.Fl e
-enables backslash interpretation (a no-op, since this is normally done), and
-.Fl E
-suppresses backslash interpretation.
-.Pp
-If the
-.Ic posix
-or
-.Ic sh
-option is set or this is a direct builtin call, only the first argument
-is treated as an option, and only if it is exactly
-.Dq Fl n .
-Backslash interpretation is disabled.
-.Pp
-.It Ic eval Ar command ...
-The arguments are concatenated (with spaces between them) to form a single
-string which the shell then parses and executes in the current environment.
-.Pp
-.It Xo
-.Ic exec
-.Op Ar command Op Ar arg ...
-.Xc
-The command is executed without forking, replacing the shell process.
-.Pp
-If no command is given except for I/O redirection, the I/O redirection is
-permanent and the shell is
-not replaced.
-Any file descriptors greater than 2 which are opened or
-.Xr dup 2 Ns 'd
-in this way are not made available to other executed commands (i.e. commands
-that are not built-in to the shell).
-Note that the Bourne shell differs here;
-it does pass these file descriptors on.
-.Pp
-.It Ic exit Op Ar status
-The shell exits with the specified exit status.
-If
-.Ar status
-is not specified, the exit status is the current value of the
-.Ic $?\&
-parameter.
-.Pp
-.It Xo
-.Ic export
-.Op Fl p
-.Op Ar parameter Ns Op = Ns Ar value
-.Xc
-Sets the export attribute of the named parameters.
-Exported parameters are passed in the environment to executed commands.
-If values are specified, the named parameters are also assigned.
-.Pp
-If no parameters are specified, all parameters with the export attribute
-set are printed one per line; either their names, or, if a
-.Ql \-
-with no option letter is specified, name=value pairs, or, with
-.Fl p ,
-.Ic export
-commands suitable for re-entry.
-.Pp
-.It Ic false
-A command that exits with a non-zero status.
-.Pp
-.It Xo
-.Ic fc
-.Oo Fl e Ar editor \*(Ba
-.Fl l Op Fl n Oc
-.Op Fl r
-.Op Ar first Op Ar last
-.Xc
-.Ar first
-and
-.Ar last
-select commands from the history.
-Commands can be selected by history number
-or a string specifying the most recent command starting with that string.
-The
-.Fl l
-option lists the command on standard output, and
-.Fl n
-inhibits the default command numbers.
-The
-.Fl r
-option reverses the order of the list.
-Without
-.Fl l ,
-the selected commands are edited by the editor specified with the
-.Fl e
-option, or if no
-.Fl e
-is specified, the editor specified by the
-.Ev FCEDIT
-parameter (if this parameter is not set,
-.Pa /bin/ed
-is used), and then executed by the shell.
-.Pp
-.It Xo
-.Ic fc
-.Cm \-e \- \*(Ba Fl s
-.Op Fl g
-.Op Ar old Ns = Ns Ar new
-.Op Ar prefix
-.Xc
-Re-execute the selected command (the previous command by default) after
-performing the optional substitution of
-.Ar old
-with
-.Ar new .
-If
-.Fl g
-is specified, all occurrences of
-.Ar old
-are replaced with
-.Ar new .
-The meaning of
-.Cm \-e \-
-and
-.Fl s
-is identical: re-execute the selected command without invoking an editor.
-This command is usually accessed with the predefined:
-.Ic alias r=\*(aqfc \-e \-\*(aq
-.Pp
-.It Ic fg Op Ar job ...
-Resume the specified job(s) in the foreground.
-If no jobs are specified,
-.Ic %+
-is assumed.
-See
-.Sx Job control
-below for more information.
-.Pp
-.It Xo
-.Ic getopts
-.Ar optstring name
-.Op Ar arg ...
-.Xc
-Used by shell procedures to parse the specified arguments (or positional
-parameters, if no arguments are given) and to check for legal options.
-.Ar optstring
-contains the option letters that
-.Ic getopts
-is to recognise.
-If a letter is followed by a colon, the option is expected to
-have an argument.
-Options that do not take arguments may be grouped in a single argument.
-If an option takes an argument and the option character is not the
-last character of the argument it is found in, the remainder of the argument is
-taken to be the option's argument; otherwise, the next argument is the option's
-argument.
-.Pp
-Each time
-.Ic getopts
-is invoked, it places the next option in the shell parameter
-.Ar name
-and the index of the argument to be processed by the next call to
-.Ic getopts
-in the shell parameter
-.Ev OPTIND .
-If the option was introduced with a
-.Ql + ,
-the option placed in
-.Ar name
-is prefixed with a
-.Ql + .
-When an option requires an argument,
-.Ic getopts
-places it in the shell parameter
-.Ev OPTARG .
-.Pp
-When an illegal option or a missing option argument is encountered, a question
-mark or a colon is placed in
-.Ar name
-(indicating an illegal option or missing argument, respectively) and
-.Ev OPTARG
-is set to the option character that caused the problem.
-Furthermore, if
-.Ar optstring
-does not begin with a colon, a question mark is placed in
-.Ar name ,
-.Ev OPTARG
-is unset, and an error message is printed to standard error.
-.Pp
-When the end of the options is encountered,
-.Ic getopts
-exits with a non-zero exit status.
-Options end at the first (non-option
-argument) argument that does not start with a
-.Ql \- ,
-or when a
-.Ql \-\-
-argument is encountered.
-.Pp
-Option parsing can be reset by setting
-.Ev OPTIND
-to 1 (this is done automatically whenever the shell or a shell procedure is
-invoked).
-.Pp
-Warning: Changing the value of the shell parameter
-.Ev OPTIND
-to a value other than 1, or parsing different sets of arguments without
-resetting
-.Ev OPTIND ,
-may lead to unexpected results.
-.Pp
-.It global Ar ...
-See
-.Ic typeset .
-.Pp
-.It Xo
-.Ic hash
-.Op Fl r
-.Op Ar name ...
-.Xc
-Without arguments, any hashed executable command pathnames are listed.
-The
-.Fl r
-option causes all hashed commands to be removed from the hash table.
-Each
-.Ar name
-is searched as if it were a command name and added to the hash table if it is
-an executable command.
-.Pp
-.It Xo
-.Ic jobs
-.Op Fl lnp
-.Op Ar job ...
-.Xc
-Display information about the specified job(s); if no jobs are specified, all
-jobs are displayed.
-The
-.Fl n
-option causes information to be displayed only for jobs that have changed
-state since the last notification.
-If the
-.Fl l
-option is used, the process ID of each process in a job is also listed.
-The
-.Fl p
-option causes only the process group of each job to be printed.
-See
-.Sx Job control
-below for the format of
-.Ar job
-and the displayed job.
-.Pp
-.It Xo
-.Ic kill
-.Oo Fl s Ar signame \*(Ba
-.No \- Ns Ar signum \*(Ba
-.No \- Ns Ar signame Oc
-.No { Ar job \*(Ba pid \*(Ba pgrp No }
-.Ar ...
-.Xc
-Send the specified signal to the specified jobs, process IDs, or process
-groups.
-If no signal is specified, the
-.Dv TERM
-signal is sent.
-If a job is specified, the signal is sent to the job's process group.
-See
-.Sx Job control
-below for the format of
-.Ar job .
-.Pp
-.It Xo
-.Ic kill
-.Fl l
-.Op Ar exit-status ...
-.Xc
-Print the signal name corresponding to
-.Ar exit-status .
-If no arguments are specified, a list of all the signals, their numbers, and
-a short description of them are printed.
-.Pp
-.It Ic let Op Ar expression ...
-Each expression is evaluated (see
-.Sx Arithmetic expressions
-above).
-If all expressions are successfully evaluated, the exit status is 0 (1)
-if the last expression evaluated to non-zero (zero).
-If an error occurs during
-the parsing or evaluation of an expression, the exit status is greater than 1.
-Since expressions may need to be quoted,
-.No \&(( Ar expr No ))
-is syntactic sugar for
-.No let \&" Ns Ar expr Ns \&" .
-.Pp
-.It let]
-Internally used alias for
-.Ic let .
-.Pp
-.It Xo
-.Ic mknod
-.Op Fl m Ar mode
-.Ar name
-.Cm b\*(Bac
-.Ar major minor
-.Xc
-.It Xo
-.Ic mknod
-.Op Fl m Ar mode
-.Ar name
-.Cm p
-.Xc
-Create a device special file.
-The file type may be
-.Cm b
-(block type device),
-.Cm c
-(character type device),
-or
-.Cm p
-.Pq named pipe , Tn FIFO .
-The file created may be modified according to its
-.Ar mode
-(via the
-.Fl m
-option),
-.Ar major
-(major device number),
-and
-.Ar minor
-(minor device number).
-.Pp
-See
-.Xr mknod 8
-for further information.
-.Pp
-.It Xo
-.Ic print
-.Oo Fl nprsu Ns Oo Ar n Oc \*(Ba
-.Fl R Op Fl en Oc
-.Op Ar argument ...
-.Xc
-.Ic print
-prints its arguments on the standard output, separated by spaces and
-terminated with a newline.
-The
-.Fl n
-option suppresses the newline.
-By default, certain C escapes are translated.
-These include these mentioned in
-.Sx Backslash expansion
-above, as well as
-.Ql \ec ,
-which is equivalent to using the
-.Fl n
-option.
-Backslash expansion may be inhibited with the
-.Fl r
-option.
-The
-.Fl s
-option prints to the history file instead of standard output; the
-.Fl u
-option prints to file descriptor
-.Ar n
-.Po
-.Ar n
-defaults to 1 if omitted
-.Pc ;
-and the
-.Fl p
-option prints to the co-process (see
-.Sx Co-processes
-above).
-.Pp
-The
-.Fl R
-option is used to emulate, to some degree, the
-.Bx
-.Xr echo 1
-command which does not process
-.Ql \e
-sequences unless the
-.Fl e
-option is given.
-As above, the
-.Fl n
-option suppresses the trailing newline.
-.Pp
-.It Ic printf Ar format Op Ar arguments ...
-Formatted output.
-Approximately the same as the
-.Xr printf 1 ,
-utility, except it uses the same
-.Sx Backslash expansion
-and I/O code and does hot handle floating point as the rest of
-.Nm mksh .
-This is not normally part of
-.Nm mksh ;
-however, distributors may have added this as builtin as a speed hack.
-Do not use in new code.
-.Pp
-.It Ic pwd Op Fl LP
-Print the present working directory.
-If the
-.Fl L
-option is used or if the
-.Ic physical
-option isn't set (see the
-.Ic set
-command below), the logical path is printed (i.e. the path used to
-.Ic cd
-to the current directory).
-If the
-.Fl P
-option (physical path) is used or if the
-.Ic physical
-option is set, the path determined from the filesystem (by following
-.Sq ..
-directories to the root directory) is printed.
-.Pp
-.It Xo
-.Ic read
-.Op Fl A \*(Ba Fl a
-.Op Fl d Ar x
-.Oo Fl N Ar z \*(Ba
-.Fl n Ar z Oc
-.Oo Fl p \*(Ba
-.Fl u Ns Op Ar n
-.Oc Op Fl t Ar n
-.Op Fl rs
-.Op Ar p ...
-.Xc
-Reads a line of input, separates the input into fields using the
-.Ev IFS
-parameter (see
-.Sx Substitution
-above), and assigns each field to the specified parameters
-.Ar p .
-If no parameters are specified, the
-.Ev REPLY
-parameter is used to store the result.
-With the
-.Fl A
-and
-.Fl a
-options, only no or one parameter is accepted.
-If there are more parameters than fields, the extra parameters are set to
-the empty string or 0; if there are more fields than parameters, the last
-parameter is assigned the remaining fields (including the word separators).
-.Pp
-The options are as follows:
-.Bl -tag -width XuXnX
-.It Fl A
-Store the result into the parameter
-.Ar p
-(or
-.Ev REPLY )
-as array of words.
-.It Fl a
-Store the result without word splitting into the parameter
-.Ar p
-(or
-.Ev REPLY )
-as array of characters (wide characters if the
-.Ic utf8\-mode
-option is enacted, octets otherwise).
-.It Fl d Ar x
-Use the first byte of
-.Ar x ,
-.Dv NUL
-if empty, instead of the ASCII newline character as input line delimiter.
-.It Fl N Ar z
-Instead of reading till end-of-line, read exactly
-.Ar z
-bytes; less if EOF or a timeout occurs.
-.It Fl n Ar z
-Instead of reading till end-of-line, read up to
-.Ar z
-bytes but return as soon as any bytes are read, e.g.\& from a
-slow terminal device, or if EOF or a timeout occurs.
-.It Fl p
-Read from the currently active co-process, see
-.Sx Co-processes
-above for details on this.
-.It Fl u Ns Op Ar n
-Read from the file descriptor
-.Ar n
-(defaults to 0, i.e.\& standard input).
-The argument must immediately follow the option character.
-.It Fl t Ar n
-Interrupt reading after
-.Ar n
-seconds (specified as positive decimal value with an optional fractional part).
-.It Fl r
-Normally, the ASCII backslash character escapes the special
-meaning of the following character and is stripped from the input;
-.Ic read
-does not stop when encountering a backslash-newline sequence and
-does not store that newline in the result.
-This option enables raw mode, in which backslashes are not processed.
-.It Fl s
-The input line is saved to the history.
-.El
-.Pp
-If the input is a terminal, both the
-.Fl N
-and
-.Fl n
-options set it into raw mode;
-they read an entire file if \-1 is passed as
-.Ar z
-argument.
-.Pp
-The first parameter may have a question mark and a string appended to it, in
-which case the string is used as a prompt (printed to standard error before
-any input is read) if the input is a
-.Xr tty 4
-(e.g.\&
-.Ic read nfoo?\*(aqnumber of foos: \*(aq ) .
-.Pp
-If no input is read or a timeout occurred,
-.Ic read
-exits with a non-zero status.
-.Pp
-Another handy set of tricks:
-If
-.Ic read
-is run in a loop such as
-.Ic while read foo; do ...; done
-then leading whitespace will be removed (IFS) and backslashes processed.
-You might want to use
-.Ic while IFS= read \-r foo; do ...; done
-for pristine I/O.
-Similarily, when using the
-.Fl a
-option, use of the
-.Fl r
-option might be prudent; the same applies for:
-.Bd -literal -offset indent
-find . \-type f \-print0 \*(Ba \e
- while IFS= read \-d \*(aq\*(aq \-r filename; do
- print \-r \-\- "found \*(Lt${filename#./}\*(Gt"
-done
-.Ed
-.Pp
-The inner loop will be executed in a subshell and variable changes
-cannot be propagated if executed in a pipeline:
-.Bd -literal -offset indent
-bar \*(Ba baz \*(Ba while read foo; do ...; done
-.Ed
-.Pp
-Use co-processes instead:
-.Bd -literal -offset indent
-bar \*(Ba baz \*(Ba&
-while read \-p foo; do ...; done
-exec 3\*(Gt&p; exec 3\*(Gt&\-
-.Ed
-.Pp
-.It Xo
-.Ic readonly
-.Op Fl p
-.Oo Ar parameter
-.Op Ns = Ns Ar value
-.Ar ... Oc
-.Xc
-Sets the read-only attribute of the named parameters.
-If values are given,
-parameters are set to them before setting the attribute.
-Once a parameter is
-made read-only, it cannot be unset and its value cannot be changed.
-.Pp
-If no parameters are specified, the names of all parameters with the read-only
-attribute are printed one per line, unless the
-.Fl p
-option is used, in which case
-.Ic readonly
-commands defining all read-only parameters, including their values, are
-printed.
-.Pp
-.It Xo
-.Ic realpath
-.Op Fl \-
-.Ar name
-.Xc
-Prints the resolved absolute pathname corresponding to
-.Ar name .
-If
-.Ar name
-ends with a slash
-.Pq Sq / ,
-it's also checked for existence and whether it is a directory; otherwise,
-.Ic realpath
-returns 0 if the pathname either exists or can be created immediately,
-i.e. all but the last component exist and are directories.
-.Pp
-.It Xo
-.Ic rename
-.Op Fl \-
-.Ar from to
-.Xc
-Renames the file
-.Ar from
-to
-.Ar to .
-Both must be complete pathnames and on the same device.
-This builtin is intended for emergency situations where
-.Pa /bin/mv
-becomes unusable, and directly calls
-.Xr rename 2 .
-.Pp
-.It Ic return Op Ar status
-Returns from a function or
-.Ic .\&
-script, with exit status
-.Ar status .
-If no
-.Ar status
-is given, the exit status of the last executed command is used.
-If used outside of a function or
-.Ic .\&
-script, it has the same effect as
-.Ic exit .
-Note that
-.Nm
-treats both profile and
-.Ev ENV
-files as
-.Ic .\&
-scripts, while the original Korn shell only treats profiles as
-.Ic .\&
-scripts.
-.Pp
-.It Xo
-.Ic set Op Ic +\-abCefhiklmnprsUuvXx
-.Op Ic +\-o Ar option
-.Op Ic +\-A Ar name
-.Op Fl \-
-.Op Ar arg ...
-.Xc
-The
-.Ic set
-command can be used to set
-.Pq Ic \-
-or clear
-.Pq Ic +
-shell options, set the positional parameters, or set an array parameter.
-Options can be changed using the
-.Cm +\-o Ar option
-syntax, where
-.Ar option
-is the long name of an option, or using the
-.Cm +\- Ns Ar letter
-syntax, where
-.Ar letter
-is the option's single letter name (not all options have a single letter name).
-The following table lists both option letters (if they exist) and long names
-along with a description of what the option does:
-.Bl -tag -width 3n
-.It Fl A Ar name
-Sets the elements of the array parameter
-.Ar name
-to
-.Ar arg ...
-If
-.Fl A
-is used, the array is reset (i.e. emptied) first; if
-.Ic +A
-is used, the first N elements are set (where N is the number of arguments);
-the rest are left untouched.
-.Pp
-An alternative syntax for the command
-.Ic set \-A foo \-\- a b c
-which is compatible to
-.Tn GNU
-.Nm bash
-and also supported by
-.At
-.Nm ksh93
-is:
-.Ic foo=(a b c); foo+=(d e)
-.Pp
-Another
-.At
-.Nm ksh93
-and
-.Tn GNU
-.Nm bash
-extension allows specifying the indices used for
-.Ar arg ...
-.Pq from the above example, Ic a b c
-like this:
-.Ic set \-A foo \-\- [0]=a [1]=b [2]=c
-or
-.Ic foo=([0]=a [1]=b [2]=c)
-which can also be written
-.Ic foo=([0]=a b c)
-because indices are incremented automatically.
-.It Fl a \*(Ba Fl o Ic allexport
-All new parameters are created with the export attribute.
-.It Fl b \*(Ba Fl o Ic notify
-Print job notification messages asynchronously, instead of just before the
-prompt.
-Only used if job control is enabled
-.Pq Fl m .
-.It Fl C \*(Ba Fl o Ic noclobber
-Prevent \*(Gt redirection from overwriting existing files.
-Instead, \*(Gt\*(Ba must be used to force an overwrite.
-.It Fl e \*(Ba Fl o Ic errexit
-Exit (after executing the
-.Dv ERR
-trap) as soon as an error occurs or a command fails (i.e. exits with a
-non-zero status).
-This does not apply to commands whose exit status is
-explicitly tested by a shell construct such as
-.Ic if ,
-.Ic until ,
-.Ic while ,
-or
-.Ic !\&
-statements.
-For
-.Ic &&
-or
-.Ic \*(Ba\*(Ba ,
-only the status of the last command is tested.
-.It Fl f \*(Ba Fl o Ic noglob
-Do not expand file name patterns.
-.It Fl h \*(Ba Fl o Ic trackall
-Create tracked aliases for all executed commands (see
-.Sx Aliases
-above).
-Enabled by default for non-interactive shells.
-.It Fl i \*(Ba Fl o Ic interactive
-The shell is an interactive shell.
-This option can only be used when the shell is invoked.
-See above for a description of what this means.
-.It Fl k \*(Ba Fl o Ic keyword
-Parameter assignments are recognised anywhere in a command.
-.It Fl l \*(Ba Fl o Ic login
-The shell is a login shell.
-This option can only be used when the shell is invoked.
-See above for a description of what this means.
-.It Fl m \*(Ba Fl o Ic monitor
-Enable job control (default for interactive shells).
-.It Fl n \*(Ba Fl o Ic noexec
-Do not execute any commands.
-Useful for checking the syntax of scripts
-(ignored if interactive).
-.It Fl p \*(Ba Fl o Ic privileged
-The shell is a privileged shell.
-It is set automatically if, when the shell starts,
-the real UID or GID does not match
-the effective UID (EUID) or GID (EGID), respectively.
-See above for a description of what this means.
-.It Fl r \*(Ba Fl o Ic restricted
-The shell is a restricted shell.
-This option can only be used when the shell is invoked.
-See above for a description of what this means.
-.It Fl s \*(Ba Fl o Ic stdin
-If used when the shell is invoked, commands are read from standard input.
-Set automatically if the shell is invoked with no arguments.
-.Pp
-When
-.Fl s
-is used with the
-.Ic set
-command it causes the specified arguments to be sorted before assigning them to
-the positional parameters (or to array
-.Ar name ,
-if
-.Fl A
-is used).
-.It Fl U \*(Ba Fl o Ic utf8\-mode
-Enable UTF-8 support in the
-.Sx Emacs editing mode
-and internal string handling functions.
-This flag is disabled by default, but can be enabled by setting it on the
-shell command line; is enabled automatically for interactive shells if
-requested at compile time, your system supports
-.Fn setlocale LC_CTYPE \&""
-and optionally
-.Fn nl_langinfo CODESET ,
-or the
-.Ev LC_ALL ,
-.Ev LC_CTYPE ,
-or
-.Ev LANG
-environment variables,
-and at least one of these returns something that matches
-.Dq UTF\-8
-or
-.Dq utf8
-case-insensitively; for direct builtin calls depending on the
-aforementioned environment variables; or for stdin or scripts,
-if the input begins with a UTF-8 Byte Order Mark.
-.It Fl u \*(Ba Fl o Ic nounset
-Referencing of an unset parameter, other than
-.Dq $@
-or
-.Dq $* ,
-is treated as an error, unless one of the
-.Ql \- ,
-.Ql + ,
-or
-.Ql =
-modifiers is used.
-.It Fl v \*(Ba Fl o Ic verbose
-Write shell input to standard error as it is read.
-.It Fl X \*(Ba Fl o Ic markdirs
-Mark directories with a trailing
-.Ql /
-during file name generation.
-.It Fl x \*(Ba Fl o Ic xtrace
-Print command trees when they are executed, preceded by
-the value of
-.Ev PS4 .
-.It Fl o Ic bgnice
-Background jobs are run with lower priority.
-.It Fl o Ic braceexpand
-Enable brace expansion (a.k.a. alternation).
-This is enabled by default.
-If disabled, tilde expansion after an equals sign is disabled as a side effect.
-.It Fl o Ic emacs
-Enable BRL emacs-like command-line editing (interactive shells only); see
-.Sx Emacs editing mode .
-.It Fl o Ic gmacs
-Enable gmacs-like command-line editing (interactive shells only).
-Currently identical to emacs editing except that transpose\-chars (\*(haT) acts
-slightly differently.
-.It Fl o Ic ignoreeof
-The shell will not (easily) exit when end-of-file is read;
-.Ic exit
-must be used.
-To avoid infinite loops, the shell will exit if
-.Dv EOF
-is read 13 times in a row.
-.It Fl o Ic inherit\-xtrace
-Do not reset
-.Fl o Ic xtrace
-upon entering functions.
-This is enabled by default.
-.It Fl o Ic nohup
-Do not kill running jobs with a
-.Dv SIGHUP
-signal when a login shell exits.
-Currently set by default, but this may
-change in the future to be compatible with
-.At
-.Nm ksh ,
-which
-doesn't have this option, but does send the
-.Dv SIGHUP
-signal.
-.It Fl o Ic nolog
-No effect.
-In the original Korn shell, this prevents function definitions from
-being stored in the history file.
-.It Fl o Ic physical
-Causes the
-.Ic cd
-and
-.Ic pwd
-commands to use
-.Dq physical
-(i.e. the filesystem's)
-.Sq ..
-directories instead of
-.Dq logical
-directories (i.e. the shell handles
-.Sq .. ,
-which allows the user to be oblivious of symbolic links to directories).
-Clear by default.
-Note that setting this option does not affect the current value of the
-.Ev PWD
-parameter; only the
-.Ic cd
-command changes
-.Ev PWD .
-See the
-.Ic cd
-and
-.Ic pwd
-commands above for more details.
-.It Fl o Ic pipefail
-Make the exit status of a pipeline (before logically complementing) the
-rightmost non-zero errorlevel, or zero if all commands exited with zero.
-.It Fl o Ic posix
-Enable a somewhat more
-.Px
-ish mode.
-As a side effect, setting this flag turns off
-.Ic braceexpand
-mode, which can be turned back on manually, and
-.Ic sh
-mode.
-.It Fl o Ic sh
-Enable
-.Pa /bin/sh
-.Pq kludge
-mode.
-Automatically enabled if the basename of the shell invocation begins with
-.Dq sh
-and this autodetection feature is compiled in
-.Pq not in MirBSD .
-As a side effect, setting this flag turns off
-.Ic braceexpand
-mode, which can be turned back on manually, and
-.Ic posix
-mode.
-.It Fl o Ic vi
-Enable
-.Xr vi 1 Ns -like
-command-line editing (interactive shells only).
-.It Fl o Ic vi\-esccomplete
-In vi command-line editing, do command and file name completion when escape
-(\*(ha[) is entered in command mode.
-.It Fl o Ic vi\-tabcomplete
-In vi command-line editing, do command and file name completion when tab (\*(haI)
-is entered in insert mode.
-This is the default.
-.It Fl o Ic viraw
-No effect.
-In the original Korn shell, unless
-.Ic viraw
-was set, the vi command-line mode would let the
-.Xr tty 4
-driver do the work until ESC (\*(ha[) was entered.
-.Nm
-is always in viraw mode.
-.El
-.Pp
-These options can also be used upon invocation of the shell.
-The current set of
-options (with single letter names) can be found in the parameter
-.Sq $\- .
-.Ic set Fl o
-with no option name will list all the options and whether each is on or off;
-.Ic set +o
-will print the long names of all options that are currently on.
-.Pp
-Remaining arguments, if any, are positional parameters and are assigned, in
-order, to the positional parameters (i.e. $1, $2, etc.).
-If options end with
-.Ql \-\-
-and there are no remaining arguments, all positional parameters are cleared.
-If no options or arguments are given, the values of all names are printed.
-For unknown historical reasons, a lone
-.Ql \-
-option is treated specially \*(en it clears both the
-.Fl v
-and
-.Fl x
-options.
-.Pp
-.It Ic shift Op Ar number
-The positional parameters
-.Ar number Ns +1 ,
-.Ar number Ns +2 ,
-etc. are renamed to
-.Sq 1 ,
-.Sq 2 ,
-etc.
-.Ar number
-defaults to 1.
-.Pp
-.It Ic sleep Ar seconds
-Suspends execution for a minimum of the
-.Ar seconds
-specified as positive decimal value with an optional fractional part.
-Signal delivery may continue execution earlier.
-.Pp
-.It Ic source Ar file Op Ar arg ...
-Like
-.Ic \&. Po Do dot Dc Pc ,
-except that the current working directory is appended to the
-.Ev PATH
-in GNU
-.Nm bash
-and
-.Nm mksh .
-In
-.Nm ksh93
-and
-.Nm mksh ,
-this is implemented as a shell alias instead of a builtin.
-.Pp
-.It Ic test Ar expression
-.It Ic \&[ Ar expression Ic \&]
-.Ic test
-evaluates the
-.Ar expression
-and returns zero status if true, 1 if false, or greater than 1 if there
-was an error.
-It is normally used as the condition command of
-.Ic if
-and
-.Ic while
-statements.
-Symbolic links are followed for all
-.Ar file
-expressions except
-.Fl h
-and
-.Fl L .
-.Pp
-The following basic expressions are available:
-.Bl -tag -width 17n
-.It Fl a Ar file
-.Ar file
-exists.
-.It Fl b Ar file
-.Ar file
-is a block special device.
-.It Fl c Ar file
-.Ar file
-is a character special device.
-.It Fl d Ar file
-.Ar file
-is a directory.
-.It Fl e Ar file
-.Ar file
-exists.
-.It Fl f Ar file
-.Ar file
-is a regular file.
-.It Fl G Ar file
-.Ar file Ns 's
-group is the shell's effective group ID.
-.It Fl g Ar file
-.Ar file Ns 's
-mode has the setgid bit set.
-.It Fl H Ar file
-.Ar file
-is a context dependent directory (only useful on HP-UX).
-.It Fl h Ar file
-.Ar file
-is a symbolic link.
-.It Fl k Ar file
-.Ar file Ns 's
-mode has the
-.Xr sticky 8
-bit set.
-.It Fl L Ar file
-.Ar file
-is a symbolic link.
-.It Fl O Ar file
-.Ar file Ns 's
-owner is the shell's effective user ID.
-.It Fl o Ar option
-Shell
-.Ar option
-is set (see the
-.Ic set
-command above for a list of options).
-As a non-standard extension, if the option starts with a
-.Ql \&! ,
-the test is negated; the test always fails if
-.Ar option
-doesn't exist (so [ \-o foo \-o \-o !foo ] returns true if and only if option
-.Ar foo
-exists).
-The same can be achieved with [ \-o ?foo ] like in
-.At
-.Nm ksh93 .
-.Ar option
-can also be the short flag led by either
-.Ql \-
-or
-.Ql +
-.Pq no logical negation ,
-for example
-.Ql \-x
-or
-.Ql +x
-instead of
-.Ql xtrace .
-.It Fl p Ar file
-.Ar file
-is a named pipe
-.Pq Tn FIFO .
-.It Fl r Ar file
-.Ar file
-exists and is readable.
-.It Fl S Ar file
-.Ar file
-is a
-.Xr unix 4 Ns -domain
-socket.
-.It Fl s Ar file
-.Ar file
-is not empty.
-.It Fl t Ar fd
-File descriptor
-.Ar fd
-is a
-.Xr tty 4
-device.
-.It Fl u Ar file
-.Ar file Ns 's
-mode has the setuid bit set.
-.It Fl w Ar file
-.Ar file
-exists and is writable.
-.It Fl x Ar file
-.Ar file
-exists and is executable.
-.It Ar file1 Fl nt Ar file2
-.Ar file1
-is newer than
-.Ar file2
-or
-.Ar file1
-exists and
-.Ar file2
-does not.
-.It Ar file1 Fl ot Ar file2
-.Ar file1
-is older than
-.Ar file2
-or
-.Ar file2
-exists and
-.Ar file1
-does not.
-.It Ar file1 Fl ef Ar file2
-.Ar file1
-is the same file as
-.Ar file2 .
-.It Ar string
-.Ar string
-has non-zero length.
-.It Fl n Ar string
-.Ar string
-is not empty.
-.It Fl z Ar string
-.Ar string
-is empty.
-.It Ar string No = Ar string
-Strings are equal.
-.It Ar string No == Ar string
-Strings are equal.
-.It Ar string No \*(Gt Ar string
-First string operand is greater than second string operand.
-.It Ar string No \*(Lt Ar string
-First string operand is less than second string operand.
-.It Ar string No != Ar string
-Strings are not equal.
-.It Ar number Fl eq Ar number
-Numbers compare equal.
-.It Ar number Fl ne Ar number
-Numbers compare not equal.
-.It Ar number Fl ge Ar number
-Numbers compare greater than or equal.
-.It Ar number Fl gt Ar number
-Numbers compare greater than.
-.It Ar number Fl le Ar number
-Numbers compare less than or equal.
-.It Ar number Fl \< Ar number
-Numbers compare less than.
-.El
-.Pp
-The above basic expressions, in which unary operators have precedence over
-binary operators, may be combined with the following operators (listed in
-increasing order of precedence):
-.Bd -literal -offset indent
-expr \-o expr Logical OR.
-expr \-a expr Logical AND.
-! expr Logical NOT.
-( expr ) Grouping.
-.Ed
-.Pp
-Note that a number actually may be an arithmetic expression, such as
-a mathematical term or the name of an integer variable:
-.Bd -literal -offset indent
-x=1; [ "x" \-eq 1 ] evaluates to true
-.Ed
-.Pp
-Note that some special rules are applied (courtesy of
-.Px
-) if the number of arguments to
-.Ic test
-or inside the brackets
-.Ic \&[ ... \&]
-is less than five: if leading
-.Ql \&!
-arguments can be stripped such that only one to three arguments remain,
-then the lowered comparison is executed; (thanks to XSI) parentheses
-.Ic \e( ... \e)
-lower four- and three-argument forms to two- and one-argument forms,
-respectively; three-argument forms ultimately prefer binary operations,
-followed by negation and parenthesis lowering; two- and four-argument forms
-prefer negation followed by parenthesis; the one-argument form always implies
-.Fl n .
-.Pp
-.Sy Note :
-A common mistake is to use
-.Dq if \&[ $foo = bar \&]
-which fails if parameter
-.Dq foo
-is
-.Dv NULL
-or unset, if it has embedded spaces (i.e.\&
-.Ev IFS
-octets), or if it is a unary operator like
-.Sq \&!
-or
-.Sq Fl n .
-Use tests like
-.Dq if \&[ x\&"$foo\&" = x"bar" \&]
-instead, or the double-bracket operator
-.Dq if \&[[ $foo = bar \&]]
-or, to avoid pattern matching (see
-.Ic \&[[
-above):
-.Dq if \&[[ $foo = \&"$bar" \&]]
-.Pp
-The
-.Ic \&[[ ... ]]
-construct is not only more secure to use but also often faster.
-.Pp
-.It Xo
-.Ic time
-.Op Fl p
-.Op Ar pipeline
-.Xc
-If a
-.Ar pipeline
-is given, the times used to execute the pipeline are reported.
-If no pipeline
-is given, then the user and system time used by the shell itself, and all the
-commands it has run since it was started, are reported.
-The times reported are the real time (elapsed time from start to finish),
-the user CPU time (time spent running in user mode), and the system CPU time
-(time spent running in kernel mode).
-Times are reported to standard error; the format of the output is:
-.Pp
-.Dl "0m0.00s real 0m0.00s user 0m0.00s system"
-.Pp
-If the
-.Fl p
-option is given the output is slightly longer:
-.Bd -literal -offset indent
-real 0.00
-user 0.00
-sys 0.00
-.Ed
-.Pp
-It is an error to specify the
-.Fl p
-option unless
-.Ar pipeline
-is a simple command.
-.Pp
-Simple redirections of standard error do not affect the output of the
-.Ic time
-command:
-.Pp
-.Dl $ time sleep 1 2\*(Gtafile
-.Dl $ { time sleep 1; } 2\*(Gtafile
-.Pp
-Times for the first command do not go to
-.Dq afile ,
-but those of the second command do.
-.Pp
-.It Ic times
-Print the accumulated user and system times used both by the shell
-and by processes that the shell started which have exited.
-The format of the output is:
-.Bd -literal -offset indent
-0m0.00s 0m0.00s
-0m0.00s 0m0.00s
-.Ed
-.Pp
-.It Ic trap Op Ar handler signal ...
-Sets a trap handler that is to be executed when any of the specified signals are
-received.
-.Ar handler
-is either a
-.Dv NULL
-string, indicating the signals are to be ignored, a minus sign
-.Pq Sq \- ,
-indicating that the default action is to be taken for the signals (see
-.Xr signal 3 ) ,
-or a string containing shell commands to be evaluated and executed at the first
-opportunity (i.e. when the current command completes, or before printing the
-next
-.Ev PS1
-prompt) after receipt of one of the signals.
-.Ar signal
-is the name of a signal (e.g.\&
-.Dv PIPE
-or
-.Dv ALRM )
-or the number of the signal (see the
-.Ic kill \-l
-command above).
-.Pp
-There are two special signals:
-.Dv EXIT
-(also known as 0) which is executed when the shell is about to exit, and
-.Dv ERR ,
-which is executed after an error occurs (an error is something that would cause
-the shell to exit if the
-.Fl e
-or
-.Ic errexit
-option were set \*(en see the
-.Ic set
-command above).
-.Dv EXIT
-handlers are executed in the environment of the last executed command.
-Note
-that for non-interactive shells, the trap handler cannot be changed for signals
-that were ignored when the shell started.
-.Pp
-With no arguments,
-.Ic trap
-lists, as a series of
-.Ic trap
-commands, the current state of the traps that have been set since the shell
-started.
-Note that the output of
-.Ic trap
-cannot be usefully piped to another process (an artifact of the fact that
-traps are cleared when subprocesses are created).
-.Pp
-The original Korn shell's
-.Dv DEBUG
-trap and the handling of
-.Dv ERR
-and
-.Dv EXIT
-traps in functions are not yet implemented.
-.Pp
-.It Ic true
-A command that exits with a zero value.
-.Pp
-.It Xo
-.Ic global
-.Oo Op Ic +\-alpnrtUux
-.Op Fl L Ns Op Ar n
-.Op Fl R Ns Op Ar n
-.Op Fl Z Ns Op Ar n
-.Op Fl i Ns Op Ar n
-.No \*(Ba Fl f Op Fl tux Oc
-.Oo Ar name
-.Op Ns = Ns Ar value
-.Ar ... Oc
-.Xc
-.It Xo
-.Ic typeset
-.Oo Op Ic +\-alpnrtUux
-.Op Fl LRZ Ns Op Ar n
-.Op Fl i Ns Op Ar n
-.No \*(Ba Fl f Op Fl tux Oc
-.Oo Ar name
-.Op Ns = Ns Ar value
-.Ar ... Oc
-.Xc
-Display or set parameter attributes.
-With no
-.Ar name
-arguments, parameter attributes are displayed; if no options are used, the
-current attributes of all parameters are printed as
-.Ic typeset
-commands; if an option is given (or
-.Ql \-
-with no option letter), all parameters and their values with the specified
-attributes are printed; if options are introduced with
-.Ql + ,
-parameter values are not printed.
-.Pp
-If
-.Ar name
-arguments are given, the attributes of the named parameters are set
-.Pq Ic \-
-or cleared
-.Pq Ic + .
-Values for parameters may optionally be specified.
-For
-.Ar name Ns \&[*] ,
-the change affects the entire array, and no value may be specified.
-.Pp
-If
-.Ic typeset
-is used inside a function, any parameters specified are localised.
-This is not done by the otherwise identical
-.Ic global .
-.Em Note :
-This means that
-.Nm No 's Ic global
-command is
-.Em not
-equivalent to other programming languages' as it does not allow a
-function called from another function to access a parameter at truly
-global scope, but only prevents putting an accessed one into local scope.
-.Pp
-When
-.Fl f
-is used,
-.Ic typeset
-operates on the attributes of functions.
-As with parameters, if no
-.Ar name
-arguments are given,
-functions are listed with their values (i.e. definitions) unless
-options are introduced with
-.Ql + ,
-in which case only the function names are reported.
-.Bl -tag -width Ds
-.It Fl a
-Indexed array attribute.
-.It Fl f
-Function mode.
-Display or set functions and their attributes, instead of parameters.
-.It Fl i Ns Op Ar n
-Integer attribute.
-.Ar n
-specifies the base to use when displaying the integer (if not specified, the
-base given in the first assignment is used).
-Parameters with this attribute may
-be assigned values containing arithmetic expressions.
-.It Fl L Ns Op Ar n
-Left justify attribute.
-.Ar n
-specifies the field width.
-If
-.Ar n
-is not specified, the current width of a parameter (or the width of its first
-assigned value) is used.
-Leading whitespace (and zeros, if used with the
-.Fl Z
-option) is stripped.
-If necessary, values are either truncated or space padded
-to fit the field width.
-.It Fl l
-Lower case attribute.
-All upper case characters in values are converted to lower case.
-(In the original Korn shell, this parameter meant
-.Dq long integer
-when used with the
-.Fl i
-option.)
-.It Fl n
-Create a bound variable (name reference): any access to the variable
-.Ar name
-will access the variable
-.Ar value
-in the current scope (this is different from
-.At
-.Nm ksh93 ! )
-instead.
-Also different from
-.At
-.Nm ksh93
-is that
-.Ar value
-is lazily evaluated at the time
-.Ar name
-is accessed.
-This can be used by functions to access variables whose names are
-passed as parametres, instead of using
-.Ic eval .
-.It Fl p
-Print complete
-.Ic typeset
-commands that can be used to re-create the attributes and values of
-parameters.
-.It Fl R Ns Op Ar n
-Right justify attribute.
-.Ar n
-specifies the field width.
-If
-.Ar n
-is not specified, the current width of a parameter (or the width of its first
-assigned value) is used.
-Trailing whitespace is stripped.
-If necessary, values are either stripped of leading characters or space
-padded to make them fit the field width.
-.It Fl r
-Read-only attribute.
-Parameters with this attribute may not be assigned to or unset.
-Once this attribute is set, it cannot be turned off.
-.It Fl t
-Tag attribute.
-Has no meaning to the shell; provided for application use.
-.Pp
-For functions,
-.Fl t
-is the trace attribute.
-When functions with the trace attribute are executed, the
-.Ic xtrace
-.Pq Fl x
-shell option is temporarily turned on.
-.It Fl U
-Unsigned integer attribute.
-Integers are printed as unsigned values (combine with the
-.Fl i
-option).
-This option is not in the original Korn shell.
-.It Fl u
-Upper case attribute.
-All lower case characters in values are converted to upper case.
-(In the original Korn shell, this parameter meant
-.Dq unsigned integer
-when used with the
-.Fl i
-option which meant upper case letters would never be used for bases greater
-than 10.
-See the
-.Fl U
-option.)
-.Pp
-For functions,
-.Fl u
-is the undefined attribute.
-See
-.Sx Functions
-above for the implications of this.
-.It Fl x
-Export attribute.
-Parameters (or functions) are placed in the environment of
-any executed commands.
-Exported functions are not yet implemented.
-.It Fl Z Ns Op Ar n
-Zero fill attribute.
-If not combined with
-.Fl L ,
-this is the same as
-.Fl R ,
-except zero padding is used instead of space padding.
-For integers, the number instead of the base is padded.
-.El
-.Pp
-If any of the
-.\" long integer ,
-.Fl i ,
-.Fl L ,
-.Fl l ,
-.Fl R ,
-.Fl U ,
-.Fl u ,
-or
-.Fl Z
-options are changed, all others from this set are cleared,
-unless they are also given on the same command line.
-.Pp
-.It Xo
-.Ic ulimit
-.Op Fl aBCcdefHiLlMmnOPpqrSsTtVvw
-.Op Ar value
-.Xc
-Display or set process limits.
-If no options are used, the file size limit
-.Pq Fl f
-is assumed.
-.Ar value ,
-if specified, may be either an arithmetic expression or the word
-.Dq unlimited .
-The limits affect the shell and any processes created by the shell after a
-limit is imposed.
-Note that some systems may not allow limits to be increased
-once they are set.
-Also note that the types of limits available are system
-dependent \*(en some systems have only the
-.Fl f
-limit.
-.Bl -tag -width 5n
-.It Fl a
-Display all limits; unless
-.Fl H
-is used, soft limits are displayed.
-.It Fl B Ar n
-Set the socket buffer size to
-.Ar n
-kibibytes.
-.It Fl C Ar n
-Set the number of cached threads to
-.Ar n .
-.It Fl c Ar n
-Impose a size limit of
-.Ar n
-blocks on the size of core dumps.
-.It Fl d Ar n
-Impose a size limit of
-.Ar n
-kibibytes on the size of the data area.
-.It Fl e Ar n
-Set the maximum niceness to
-.Ar n .
-.It Fl f Ar n
-Impose a size limit of
-.Ar n
-blocks on files written by the shell and its child processes (files of any
-size may be read).
-.It Fl H
-Set the hard limit only (the default is to set both hard and soft limits).
-.It Fl i Ar n
-Set the number of pending signals to
-.Ar n .
-.It Fl L Ar n
-Control flocks; documentation is missing.
-.It Fl l Ar n
-Impose a limit of
-.Ar n
-kibibytes on the amount of locked (wired) physical memory.
-.It Fl M Ar n
-Set the AIO locked memory to
-.Ar n
-kibibytes.
-.It Fl m Ar n
-Impose a limit of
-.Ar n
-kibibytes on the amount of physical memory used.
-.It Fl n Ar n
-Impose a limit of
-.Ar n
-file descriptors that can be open at once.
-.It Fl O Ar n
-Set the number of AIO operations to
-.Ar n .
-.It Fl P Ar n
-Limit the number of threads per process to
-.Ar n .
-.It Fl p Ar n
-Impose a limit of
-.Ar n
-processes that can be run by the user at any one time.
-.It Fl q Ar n
-Limit the size of
-.Tn POSIX
-message queues to
-.Ar n
-bytes.
-.It Fl r Ar n
-Set the maximum real-time priority to
-.Ar n .
-.It Fl S
-Set the soft limit only (the default is to set both hard and soft limits).
-.It Fl s Ar n
-Impose a size limit of
-.Ar n
-kibibytes on the size of the stack area.
-.It Fl T Ar n
-Impose a time limit of
-.Ar n
-real seconds to be used by each process.
-.It Fl t Ar n
-Impose a time limit of
-.Ar n
-CPU seconds spent in user mode to be used by each process.
-.It Fl V Ar n
-Set the number of vnode monitors on Haiku to
-.Ar n .
-.It Fl v Ar n
-Impose a limit of
-.Ar n
-kibibytes on the amount of virtual memory (address space) used.
-.It Fl w Ar n
-Impose a limit of
-.Ar n
-kibibytes on the amount of swap space used.
-.El
-.Pp
-As far as
-.Ic ulimit
-is concerned, a block is 512 bytes.
-.Pp
-.It Xo
-.Ic umask
-.Op Fl S
-.Op Ar mask
-.Xc
-Display or set the file permission creation mask, or umask (see
-.Xr umask 2 ) .
-If the
-.Fl S
-option is used, the mask displayed or set is symbolic; otherwise, it is an
-octal number.
-.Pp
-Symbolic masks are like those used by
-.Xr chmod 1 .
-When used, they describe what permissions may be made available (as opposed to
-octal masks in which a set bit means the corresponding bit is to be cleared).
-For example,
-.Dq ug=rwx,o=
-sets the mask so files will not be readable, writable, or executable by
-.Dq others ,
-and is equivalent (on most systems) to the octal mask
-.Dq 007 .
-.Pp
-.It Xo
-.Ic unalias
-.Op Fl adt
-.Op Ar name ...
-.Xc
-The aliases for the given names are removed.
-If the
-.Fl a
-option is used, all aliases are removed.
-If the
-.Fl t
-or
-.Fl d
-options are used, the indicated operations are carried out on tracked or
-directory aliases, respectively.
-.Pp
-.It Xo
-.Ic unset
-.Op Fl fv
-.Ar parameter ...
-.Xc
-Unset the named parameters
-.Po
-.Fl v ,
-the default
-.Pc
-or functions
-.Pq Fl f .
-With
-.Ar parameter Ns \&[*] ,
-attributes are kept, only values are unset.
-.Pp
-The exit status is non-zero if any of the parameters have the read-only
-attribute set, zero otherwise.
-.Pp
-.It Ic wait Op Ar job ...
-Wait for the specified job(s) to finish.
-The exit status of
-.Ic wait
-is that of the last specified job; if the last job is killed by a signal, the
-exit status is 128 + the number of the signal (see
-.Ic kill \-l Ar exit-status
-above); if the last specified job can't be found (because it never existed, or
-had already finished), the exit status of
-.Ic wait
-is 127.
-See
-.Sx Job control
-below for the format of
-.Ar job .
-.Ic wait
-will return if a signal for which a trap has been set is received, or if a
-.Dv SIGHUP ,
-.Dv SIGINT ,
-or
-.Dv SIGQUIT
-signal is received.
-.Pp
-If no jobs are specified,
-.Ic wait
-waits for all currently running jobs (if any) to finish and exits with a zero
-status.
-If job monitoring is enabled, the completion status of jobs is printed
-(this is not the case when jobs are explicitly specified).
-.Pp
-.It Xo
-.Ic whence
-.Op Fl pv
-.Op Ar name ...
-.Xc
-For each
-.Ar name ,
-the type of command is listed (reserved word, built-in, alias,
-function, tracked alias, or executable).
-If the
-.Fl p
-option is used, a path search is performed even if
-.Ar name
-is a reserved word, alias, etc.
-Without the
-.Fl v
-option,
-.Ic whence
-is similar to
-.Ic command Fl v
-except that
-.Ic whence
-will find reserved words and won't print aliases as alias commands.
-With the
-.Fl v
-option,
-.Ic whence
-is the same as
-.Ic command Fl V .
-Note that for
-.Ic whence ,
-the
-.Fl p
-option does not affect the search path used, as it does for
-.Ic command .
-If the type of one or more of the names could not be determined, the exit
-status is non-zero.
-.El
-.Ss Job control
-Job control refers to the shell's ability to monitor and control jobs which
-are processes or groups of processes created for commands or pipelines.
-At a minimum, the shell keeps track of the status of the background (i.e.\&
-asynchronous) jobs that currently exist; this information can be displayed
-using the
-.Ic jobs
-commands.
-If job control is fully enabled (using
-.Ic set \-m
-or
-.Ic set \-o monitor ) ,
-as it is for interactive shells, the processes of a job are placed in their
-own process group.
-Foreground jobs can be stopped by typing the suspend
-character from the terminal (normally \*(haZ), jobs can be restarted in either the
-foreground or background using the
-.Ic fg
-and
-.Ic bg
-commands, and the state of the terminal is saved or restored when a foreground
-job is stopped or restarted, respectively.
-.Pp
-Note that only commands that create processes (e.g. asynchronous commands,
-subshell commands, and non-built-in, non-function commands) can be stopped;
-commands like
-.Ic read
-cannot be.
-.Pp
-When a job is created, it is assigned a job number.
-For interactive shells, this number is printed inside
-.Dq \&[..] ,
-followed by the process IDs of the processes in the job when an asynchronous
-command is run.
-A job may be referred to in the
-.Ic bg ,
-.Ic fg ,
-.Ic jobs ,
-.Ic kill ,
-and
-.Ic wait
-commands either by the process ID of the last process in the command pipeline
-(as stored in the
-.Ic $!\&
-parameter) or by prefixing the job number with a percent
-sign
-.Pq Sq % .
-Other percent sequences can also be used to refer to jobs:
-.Bl -tag -width "%+ x %% x %XX"
-.It %+ \*(Ba %% \*(Ba %
-The most recently stopped job, or, if there are no stopped jobs, the oldest
-running job.
-.It %\-
-The job that would be the
-.Ic %+
-job if the latter did not exist.
-.It % Ns Ar n
-The job with job number
-.Ar n .
-.It %? Ns Ar string
-The job with its command containing the string
-.Ar string
-(an error occurs if multiple jobs are matched).
-.It % Ns Ar string
-The job with its command starting with the string
-.Ar string
-(an error occurs if multiple jobs are matched).
-.El
-.Pp
-When a job changes state (e.g. a background job finishes or foreground job is
-stopped), the shell prints the following status information:
-.Pp
-.D1 [ Ns Ar number ] Ar flag status command
-.Pp
-where...
-.Bl -tag -width "command"
-.It Ar number
-is the job number of the job;
-.It Ar flag
-is the
-.Ql +
-or
-.Ql \-
-character if the job is the
-.Ic %+
-or
-.Ic %\-
-job, respectively, or space if it is neither;
-.It Ar status
-indicates the current state of the job and can be:
-.Bl -tag -width "RunningXX"
-.It Done Op Ar number
-The job exited.
-.Ar number
-is the exit status of the job which is omitted if the status is zero.
-.It Running
-The job has neither stopped nor exited (note that running does not necessarily
-mean consuming CPU time \*(en
-the process could be blocked waiting for some event).
-.It Stopped Op Ar signal
-The job was stopped by the indicated
-.Ar signal
-(if no signal is given, the job was stopped by
-.Dv SIGTSTP ) .
-.It Ar signal-description Op Dq core dumped
-The job was killed by a signal (e.g. memory fault, hangup); use
-.Ic kill \-l
-for a list of signal descriptions.
-The
-.Dq core dumped
-message indicates the process created a core file.
-.El
-.It Ar command
-is the command that created the process.
-If there are multiple processes in
-the job, each process will have a line showing its
-.Ar command
-and possibly its
-.Ar status ,
-if it is different from the status of the previous process.
-.El
-.Pp
-When an attempt is made to exit the shell while there are jobs in the stopped
-state, the shell warns the user that there are stopped jobs and does not exit.
-If another attempt is immediately made to exit the shell, the stopped jobs are
-sent a
-.Dv SIGHUP
-signal and the shell exits.
-Similarly, if the
-.Ic nohup
-option is not set and there are running jobs when an attempt is made to exit
-a login shell, the shell warns the user and does not exit.
-If another attempt
-is immediately made to exit the shell, the running jobs are sent a
-.Dv SIGHUP
-signal and the shell exits.
-.Ss Interactive input line editing
-The shell supports three modes of reading command lines from a
-.Xr tty 4
-in an interactive session, controlled by the
-.Ic emacs ,
-.Ic gmacs ,
-and
-.Ic vi
-options (at most one of these can be set at once).
-The default is
-.Ic emacs .
-Editing modes can be set explicitly using the
-.Ic set
-built-in.
-If none of these options are enabled,
-the shell simply reads lines using the normal
-.Xr tty 4
-driver.
-If the
-.Ic emacs
-or
-.Ic gmacs
-option is set, the shell allows emacs-like editing of the command; similarly,
-if the
-.Ic vi
-option is set, the shell allows vi-like editing of the command.
-These modes are described in detail in the following sections.
-.Pp
-In these editing modes, if a line is longer than the screen width (see the
-.Ev COLUMNS
-parameter),
-a
-.Ql \*(Gt ,
-.Ql + ,
-or
-.Ql \*(Lt
-character is displayed in the last column indicating that there are more
-characters after, before and after, or before the current position,
-respectively.
-The line is scrolled horizontally as necessary.
-.Pp
-Completed lines are pushed into the history, unless they begin with an
-IFS octet or IFS white space, or are the same as the previous line.
-.Ss Emacs editing mode
-When the
-.Ic emacs
-option is set, interactive input line editing is enabled.
-Warning: This mode is
-slightly different from the emacs mode in the original Korn shell.
-In this mode, various editing commands
-(typically bound to one or more control characters) cause immediate actions
-without waiting for a newline.
-Several editing commands are bound to particular
-control characters when the shell is invoked; these bindings can be changed
-using the
-.Ic bind
-command.
-.Pp
-The following is a list of available editing commands.
-Each description starts with the name of the command,
-suffixed with a colon;
-an
-.Op Ar n
-(if the command can be prefixed with a count); and any keys the command is
-bound to by default, written using caret notation
-e.g. the ASCII ESC character is written as \*(ha[.
-These control sequences are not case sensitive.
-A count prefix for a command is entered using the sequence
-.Pf \*(ha[ Ns Ar n ,
-where
-.Ar n
-is a sequence of 1 or more digits.
-Unless otherwise specified, if a count is
-omitted, it defaults to 1.
-.Pp
-Note that editing command names are used only with the
-.Ic bind
-command.
-Furthermore, many editing commands are useful only on terminals with
-a visible cursor.
-The default bindings were chosen to resemble corresponding
-Emacs key bindings.
-The user's
-.Xr tty 4
-characters (e.g.\&
-.Dv ERASE )
-are bound to
-reasonable substitutes and override the default bindings.
-.Bl -tag -width Ds
-.It abort: \*(haC, \*(haG
-Abort the current command, empty the line buffer and
-set the exit state to interrupted.
-.It auto\-insert: Op Ar n
-Simply causes the character to appear as literal input.
-Most ordinary characters are bound to this.
-.It Xo backward\-char:
-.Op Ar n
-.No \*(haB , \*(haXD , ANSI-CurLeft
-.Xc
-Moves the cursor backward
-.Ar n
-characters.
-.It Xo backward\-word:
-.Op Ar n
-.No \*(ha[b , ANSI-Ctrl-CurLeft , ANSI-Alt-CurLeft
-.Xc
-Moves the cursor backward to the beginning of the word; words consist of
-alphanumerics, underscore
-.Pq Sq _ ,
-and dollar sign
-.Pq Sq $
-characters.
-.It beginning\-of\-history: \*(ha[\*(Lt
-Moves to the beginning of the history.
-.It beginning\-of\-line: \*(haA, ANSI-Home
-Moves the cursor to the beginning of the edited input line.
-.It Xo capitalise\-word:
-.Op Ar n
-.No \*(ha[C , \*(ha[c
-.Xc
-Uppercase the first character in the next
-.Ar n
-words, leaving the cursor past the end of the last word.
-.It clear\-screen: \*(ha[\*(haL
-Prints a compile-time configurable sequence to clear the screen and home
-the cursor, redraws the entire prompt and the currently edited input line.
-The default sequence works for almost all standard terminals.
-.It comment: \*(ha[#
-If the current line does not begin with a comment character, one is added at
-the beginning of the line and the line is entered (as if return had been
-pressed); otherwise, the existing comment characters are removed and the cursor
-is placed at the beginning of the line.
-.It complete: \*(ha[\*(ha[
-Automatically completes as much as is unique of the command name or the file
-name containing the cursor.
-If the entire remaining command or file name is
-unique, a space is printed after its completion, unless it is a directory name
-in which case
-.Ql /
-is appended.
-If there is no command or file name with the current partial word
-as its prefix, a bell character is output (usually causing a beep to be
-sounded).
-.It complete\-command: \*(haX\*(ha[
-Automatically completes as much as is unique of the command name having the
-partial word up to the cursor as its prefix, as in the
-.Ic complete
-command above.
-.It complete\-file: \*(ha[\*(haX
-Automatically completes as much as is unique of the file name having the
-partial word up to the cursor as its prefix, as in the
-.Ic complete
-command described above.
-.It complete\-list: \*(haI, \*(ha[=
-Complete as much as is possible of the current word,
-and list the possible completions for it.
-If only one completion is possible,
-match as in the
-.Ic complete
-command above.
-Note that \*(haI is usually generated by the TAB (tabulator) key.
-.It Xo delete\-char\-backward:
-.Op Ar n
-.No ERASE , \*(ha? , \*(haH
-.Xc
-Deletes
-.Ar n
-characters before the cursor.
-.It Xo delete\-char\-forward:
-.Op Ar n
-.No ANSI-Del
-.Xc
-Deletes
-.Ar n
-characters after the cursor.
-.It Xo delete\-word\-backward:
-.Op Ar n
-.No WERASE , \*(ha[\*(ha? , \*(ha[\*(haH , \*(ha[h
-.Xc
-Deletes
-.Ar n
-words before the cursor.
-.It Xo delete\-word\-forward:
-.Op Ar n
-.No \*(ha[d
-.Xc
-Deletes characters after the cursor up to the end of
-.Ar n
-words.
-.It Xo down\-history:
-.Op Ar n
-.No \*(haN , \*(haXB , ANSI-CurDown
-.Xc
-Scrolls the history buffer forward
-.Ar n
-lines (later).
-Each input line originally starts just after the last entry
-in the history buffer, so
-.Ic down\-history
-is not useful until either
-.Ic search\-history ,
-.Ic search\-history\-up
-or
-.Ic up\-history
-has been performed.
-.It Xo downcase\-word:
-.Op Ar n
-.No \*(ha[L , \*(ha[l
-.Xc
-Lowercases the next
-.Ar n
-words.
-.It Xo edit\-line:
-.Op Ar n
-.No \*(haXe
-.Xc
-Edit line
-.Ar n
-or the current line, if not specified, interactively.
-The actual command executed is
-.Ic fc \-e ${VISUAL:\-${EDITOR:\-vi}} Ar n .
-.It end\-of\-history: \*(ha[\*(Gt
-Moves to the end of the history.
-.It end\-of\-line: \*(haE, ANSI-End
-Moves the cursor to the end of the input line.
-.It eot: \*(ha_
-Acts as an end-of-file; this is useful because edit-mode input disables
-normal terminal input canonicalization.
-.It Xo eot\-or\-delete:
-.Op Ar n
-.No \*(haD
-.Xc
-Acts as
-.Ic eot
-if alone on a line; otherwise acts as
-.Ic delete\-char\-forward .
-.It error: (not bound)
-Error (ring the bell).
-.It exchange\-point\-and\-mark: \*(haX\*(haX
-Places the cursor where the mark is and sets the mark to where the cursor was.
-.It expand\-file: \*(ha[*
-Appends a
-.Ql *
-to the current word and replaces the word with the result of performing file
-globbing on the word.
-If no files match the pattern, the bell is rung.
-.It Xo forward\-char:
-.Op Ar n
-.No \*(haF , \*(haXC , ANSI-CurRight
-.Xc
-Moves the cursor forward
-.Ar n
-characters.
-.It Xo forward\-word:
-.Op Ar n
-.No \*(ha[f , ANSI-Ctrl-CurRight , ANSI-Alt-CurRight
-.Xc
-Moves the cursor forward to the end of the
-.Ar n Ns th
-word.
-.It Xo goto\-history:
-.Op Ar n
-.No \*(ha[g
-.Xc
-Goes to history number
-.Ar n .
-.It kill\-line: KILL
-Deletes the entire input line.
-.It kill\-region: \*(haW
-Deletes the input between the cursor and the mark.
-.It Xo kill\-to\-eol:
-.Op Ar n
-.No \*(haK
-.Xc
-Deletes the input from the cursor to the end of the line if
-.Ar n
-is not specified; otherwise deletes characters between the cursor and column
-.Ar n .
-.It list: \*(ha[?
-Prints a sorted, columnated list of command names or file names (if any) that
-can complete the partial word containing the cursor.
-Directory names have
-.Ql /
-appended to them.
-.It list\-command: \*(haX?
-Prints a sorted, columnated list of command names (if any) that can complete
-the partial word containing the cursor.
-.It list\-file: \*(haX\*(haY
-Prints a sorted, columnated list of file names (if any) that can complete the
-partial word containing the cursor.
-File type indicators are appended as described under
-.Ic list
-above.
-.It newline: \*(haJ , \*(haM
-Causes the current input line to be processed by the shell.
-The current cursor position may be anywhere on the line.
-.It newline\-and\-next: \*(haO
-Causes the current input line to be processed by the shell, and the next line
-from history becomes the current line.
-This is only useful after an
-.Ic up\-history ,
-.Ic search\-history
-or
-.Ic search\-history\-up .
-.It no\-op: QUIT
-This does nothing.
-.It prefix\-1: \*(ha[
-Introduces a 2-character command sequence.
-.It prefix\-2: \*(haX , \*(ha[[ , \*(ha[O
-Introduces a 2-character command sequence.
-.It Xo prev\-hist\-word:
-.Op Ar n
-.No \*(ha[. , \*(ha[_
-.Xc
-The last word, or, if given, the
-.Ar n Ns th
-word (zero-based) of the previous (on repeated execution, second-last,
-third-last, etc.) command is inserted at the cursor.
-Use of this editing command trashes the mark.
-.It quote: \*(ha\*(ha , \*(haV
-The following character is taken literally rather than as an editing command.
-.It redraw: \*(haL
-Reprints the last line of the prompt string and the current input line
-on a new line.
-.It Xo search\-character\-backward:
-.Op Ar n
-.No \*(ha[\*(ha]
-.Xc
-Search backward in the current line for the
-.Ar n Ns th
-occurrence of the next character typed.
-.It Xo search\-character\-forward:
-.Op Ar n
-.No \*(ha]
-.Xc
-Search forward in the current line for the
-.Ar n Ns th
-occurrence of the next character typed.
-.It search\-history: \*(haR
-Enter incremental search mode.
-The internal history list is searched
-backwards for commands matching the input.
-An initial
-.Ql \*(ha
-in the search string anchors the search.
-The escape key will leave search mode.
-Other commands, including sequences of escape as
-.Ic prefix\-1
-followed by a
-.Ic prefix\-1
-or
-.Ic prefix\-2
-key will be executed after leaving search mode.
-The
-.Ic abort Pq \*(haG
-command will restore the input line before search started.
-Successive
-.Ic search\-history
-commands continue searching backward to the next previous occurrence of the
-pattern.
-The history buffer retains only a finite number of lines; the oldest
-are discarded as necessary.
-.It search\-history\-up: ANSI-PgUp
-Search backwards through the history buffer for commands whose beginning match
-the portion of the input line before the cursor.
-When used on an empty line, this has the same effect as
-.Ic up\-history .
-.It search\-history\-down: ANSI-PgDn
-Search forwards through the history buffer for commands whose beginning match
-the portion of the input line before the cursor.
-When used on an empty line, this has the same effect as
-.Ic down\-history .
-This is only useful after an
-.Ic up\-history ,
-.Ic search\-history
-or
-.Ic search\-history\-up .
-.It set\-mark\-command: \*(ha[ Ns Aq space
-Set the mark at the cursor position.
-.It transpose\-chars: \*(haT
-If at the end of line, or if the
-.Ic gmacs
-option is set, this exchanges the two previous characters; otherwise, it
-exchanges the previous and current characters and moves the cursor one
-character to the right.
-.It Xo up\-history:
-.Op Ar n
-.No \*(haP , \*(haXA , ANSI-CurUp
-.Xc
-Scrolls the history buffer backward
-.Ar n
-lines (earlier).
-.It Xo upcase\-word:
-.Op Ar n
-.No \*(ha[U , \*(ha[u
-.Xc
-Uppercase the next
-.Ar n
-words.
-.It version: \*(ha[\*(haV
-Display the version of
-.Nm mksh .
-The current edit buffer is restored as soon as a key is pressed.
-The restoring keypress is processed, unless it is a space.
-.It yank: \*(haY
-Inserts the most recently killed text string at the current cursor position.
-.It yank\-pop: \*(ha[y
-Immediately after a
-.Ic yank ,
-replaces the inserted text string with the next previously killed text string.
-.El
-.Ss Vi editing mode
-.Em Note:
-The vi command-line editing mode is orphaned, yet still functional.
-.Pp
-The vi command-line editor in
-.Nm
-has basically the same commands as the
-.Xr vi 1
-editor with the following exceptions:
-.Bl -bullet
-.It
-You start out in insert mode.
-.It
-There are file name and command completion commands:
-=, \e, *, \*(haX, \*(haE, \*(haF, and, optionally,
-.Aq tab
-and
-.Aq esc .
-.It
-The
-.Ic _
-command is different (in
-.Nm mksh ,
-it is the last argument command; in
-.Xr vi 1
-it goes to the start of the current line).
-.It
-The
-.Ic /
-and
-.Ic G
-commands move in the opposite direction to the
-.Ic j
-command.
-.It
-Commands which don't make sense in a single line editor are not available
-(e.g. screen movement commands and
-.Xr ex 1 Ns -style
-colon
-.Pq Ic \&:
-commands).
-.El
-.Pp
-Like
-.Xr vi 1 ,
-there are two modes:
-.Dq insert
-mode and
-.Dq command
-mode.
-In insert mode, most characters are simply put in the buffer at the
-current cursor position as they are typed; however, some characters are
-treated specially.
-In particular, the following characters are taken from current
-.Xr tty 4
-settings
-(see
-.Xr stty 1 )
-and have their usual meaning (normal values are in parentheses): kill (\*(haU),
-erase (\*(ha?), werase (\*(haW), eof (\*(haD), intr (\*(haC), and quit (\*(ha\e).
-In addition to
-the above, the following characters are also treated specially in insert mode:
-.Bl -tag -width XJXXXXM
-.It \*(haE
-Command and file name enumeration (see below).
-.It \*(haF
-Command and file name completion (see below).
-If used twice in a row, the
-list of possible completions is displayed; if used a third time, the completion
-is undone.
-.It \*(haH
-Erases previous character.
-.It \*(haJ \*(Ba \*(haM
-End of line.
-The current line is read, parsed, and executed by the shell.
-.It \*(haV
-Literal next.
-The next character typed is not treated specially (can be used
-to insert the characters being described here).
-.It \*(haX
-Command and file name expansion (see below).
-.It Aq esc
-Puts the editor in command mode (see below).
-.It Aq tab
-Optional file name and command completion (see
-.Ic \*(haF
-above), enabled with
-.Ic set \-o vi\-tabcomplete .
-.El
-.Pp
-In command mode, each character is interpreted as a command.
-Characters that
-don't correspond to commands, are illegal combinations of commands, or are
-commands that can't be carried out, all cause beeps.
-In the following command descriptions, an
-.Op Ar n
-indicates the command may be prefixed by a number (e.g.\&
-.Ic 10l
-moves right 10 characters); if no number prefix is used,
-.Ar n
-is assumed to be 1 unless otherwise specified.
-The term
-.Dq current position
-refers to the position between the cursor and the character preceding the
-cursor.
-A
-.Dq word
-is a sequence of letters, digits, and underscore characters or a sequence of
-non-letter, non-digit, non-underscore, and non-whitespace characters (e.g.\&
-.Dq ab2*&\*(ha
-contains two words) and a
-.Dq big-word
-is a sequence of non-whitespace characters.
-.Pp
-Special
-.Nm
-vi commands:
-.Pp
-The following commands are not in, or are different from, the normal vi file
-editor:
-.Bl -tag -width 10n
-.It Xo
-.Oo Ar n Oc Ns _
-.Xc
-Insert a space followed by the
-.Ar n Ns th
-big-word from the last command in the history at the current position and enter
-insert mode; if
-.Ar n
-is not specified, the last word is inserted.
-.It #
-Insert the comment character
-.Pq Sq #
-at the start of the current line and return the line to the shell (equivalent
-to
-.Ic I#\*(haJ ) .
-.It Xo
-.Oo Ar n Oc Ns g
-.Xc
-Like
-.Ic G ,
-except if
-.Ar n
-is not specified, it goes to the most recent remembered line.
-.It Xo
-.Oo Ar n Oc Ns v
-.Xc
-Edit line
-.Ar n
-using the
-.Xr vi 1
-editor; if
-.Ar n
-is not specified, the current line is edited.
-The actual command executed is
-.Ic fc \-e ${VISUAL:\-${EDITOR:\-vi}} Ar n .
-.It * and \*(haX
-Command or file name expansion is applied to the current big-word (with an
-appended
-.Ql *
-if the word contains no file globbing characters) \*(en the big-word is replaced
-with the resulting words.
-If the current big-word is the first on the line
-or follows one of the characters
-.Ql \&; ,
-.Ql \*(Ba ,
-.Ql & ,
-.Ql \&( ,
-or
-.Ql \&) ,
-and does not contain a slash
-.Pq Sq / ,
-then command expansion is done; otherwise file name expansion is done.
-Command expansion will match the big-word against all aliases, functions, and
-built-in commands as well as any executable files found by searching the
-directories in the
-.Ev PATH
-parameter.
-File name expansion matches the big-word against the files in the
-current directory.
-After expansion, the cursor is placed just past the last
-word and the editor is in insert mode.
-.It Xo
-.Oo Ar n Oc Ns \e ,
-.Oo Ar n Oc Ns \*(haF ,
-.Oo Ar n Oc Ns Aq tab ,
-.No and
-.Oo Ar n Oc Ns Aq esc
-.Xc
-Command/file name completion.
-Replace the current big-word with the
-longest unique match obtained after performing command and file name expansion.
-.Aq tab
-is only recognised if the
-.Ic vi\-tabcomplete
-option is set, while
-.Aq esc
-is only recognised if the
-.Ic vi\-esccomplete
-option is set (see
-.Ic set \-o ) .
-If
-.Ar n
-is specified, the
-.Ar n Ns th
-possible completion is selected (as reported by the command/file name
-enumeration command).
-.It = and \*(haE
-Command/file name enumeration.
-List all the commands or files that match the current big-word.
-.It \*(haV
-Display the version of
-.Nm mksh .
-The current edit buffer is restored as soon as a key is pressed.
-The restoring keypress is ignored.
-.It @ Ns Ar c
-Macro expansion.
-Execute the commands found in the alias
-.Ar c .
-.El
-.Pp
-Intra-line movement commands:
-.Bl -tag -width Ds
-.It Xo
-.Oo Ar n Oc Ns h and
-.Oo Ar n Oc Ns \*(haH
-.Xc
-Move left
-.Ar n
-characters.
-.It Xo
-.Oo Ar n Oc Ns l and
-.Oo Ar n Oc Ns Aq space
-.Xc
-Move right
-.Ar n
-characters.
-.It 0
-Move to column 0.
-.It \*(ha
-Move to the first non-whitespace character.
-.It Xo
-.Oo Ar n Oc Ns \*(Ba
-.Xc
-Move to column
-.Ar n .
-.It $
-Move to the last character.
-.It Xo
-.Oo Ar n Oc Ns b
-.Xc
-Move back
-.Ar n
-words.
-.It Xo
-.Oo Ar n Oc Ns B
-.Xc
-Move back
-.Ar n
-big-words.
-.It Xo
-.Oo Ar n Oc Ns e
-.Xc
-Move forward to the end of the word,
-.Ar n
-times.
-.It Xo
-.Oo Ar n Oc Ns E
-.Xc
-Move forward to the end of the big-word,
-.Ar n
-times.
-.It Xo
-.Oo Ar n Oc Ns w
-.Xc
-Move forward
-.Ar n
-words.
-.It Xo
-.Oo Ar n Oc Ns W
-.Xc
-Move forward
-.Ar n
-big-words.
-.It %
-Find match.
-The editor looks forward for the nearest parenthesis, bracket, or
-brace and then moves the cursor to the matching parenthesis, bracket, or brace.
-.It Xo
-.Oo Ar n Oc Ns f Ns Ar c
-.Xc
-Move forward to the
-.Ar n Ns th
-occurrence of the character
-.Ar c .
-.It Xo
-.Oo Ar n Oc Ns F Ns Ar c
-.Xc
-Move backward to the
-.Ar n Ns th
-occurrence of the character
-.Ar c .
-.It Xo
-.Oo Ar n Oc Ns t Ns Ar c
-.Xc
-Move forward to just before the
-.Ar n Ns th
-occurrence of the character
-.Ar c .
-.It Xo
-.Oo Ar n Oc Ns T Ns Ar c
-.Xc
-Move backward to just before the
-.Ar n Ns th
-occurrence of the character
-.Ar c .
-.It Xo
-.Oo Ar n Oc Ns \&;
-.Xc
-Repeats the last
-.Ic f , F , t ,
-or
-.Ic T
-command.
-.It Xo
-.Oo Ar n Oc Ns \&,
-.Xc
-Repeats the last
-.Ic f , F , t ,
-or
-.Ic T
-command, but moves in the opposite direction.
-.El
-.Pp
-Inter-line movement commands:
-.Bl -tag -width Ds
-.It Xo
-.Oo Ar n Oc Ns j ,
-.Oo Ar n Oc Ns + ,
-.No and
-.Oo Ar n Oc Ns \*(haN
-.Xc
-Move to the
-.Ar n Ns th
-next line in the history.
-.It Xo
-.Oo Ar n Oc Ns k ,
-.Oo Ar n Oc Ns \- ,
-.No and
-.Oo Ar n Oc Ns \*(haP
-.Xc
-Move to the
-.Ar n Ns th
-previous line in the history.
-.It Xo
-.Oo Ar n Oc Ns G
-.Xc
-Move to line
-.Ar n
-in the history; if
-.Ar n
-is not specified, the number of the first remembered line is used.
-.It Xo
-.Oo Ar n Oc Ns g
-.Xc
-Like
-.Ic G ,
-except if
-.Ar n
-is not specified, it goes to the most recent remembered line.
-.It Xo
-.Oo Ar n Oc Ns / Ns Ar string
-.Xc
-Search backward through the history for the
-.Ar n Ns th
-line containing
-.Ar string ;
-if
-.Ar string
-starts with
-.Ql \*(ha ,
-the remainder of the string must appear at the start of the history line for
-it to match.
-.It Xo
-.Oo Ar n Oc Ns \&? Ns Ar string
-.Xc
-Same as
-.Ic / ,
-except it searches forward through the history.
-.It Xo
-.Oo Ar n Oc Ns n
-.Xc
-Search for the
-.Ar n Ns th
-occurrence of the last search string;
-the direction of the search is the same as the last search.
-.It Xo
-.Oo Ar n Oc Ns N
-.Xc
-Search for the
-.Ar n Ns th
-occurrence of the last search string;
-the direction of the search is the opposite of the last search.
-.It Ar ANSI-CurUp
-Take the characters from the beginning of the line to the current
-cursor position as search string and do a backwards history search
-for lines beginning with this string; keep the cursor position.
-This works only in insert mode and keeps it enabled.
-.El
-.Pp
-Edit commands
-.Bl -tag -width Ds
-.It Xo
-.Oo Ar n Oc Ns a
-.Xc
-Append text
-.Ar n
-times; goes into insert mode just after the current position.
-The append is
-only replicated if command mode is re-entered i.e.\&
-.Aq esc
-is used.
-.It Xo
-.Oo Ar n Oc Ns A
-.Xc
-Same as
-.Ic a ,
-except it appends at the end of the line.
-.It Xo
-.Oo Ar n Oc Ns i
-.Xc
-Insert text
-.Ar n
-times; goes into insert mode at the current position.
-The insertion is only
-replicated if command mode is re-entered i.e.\&
-.Aq esc
-is used.
-.It Xo
-.Oo Ar n Oc Ns I
-.Xc
-Same as
-.Ic i ,
-except the insertion is done just before the first non-blank character.
-.It Xo
-.Oo Ar n Oc Ns s
-.Xc
-Substitute the next
-.Ar n
-characters (i.e. delete the characters and go into insert mode).
-.It S
-Substitute whole line.
-All characters from the first non-blank character to the
-end of the line are deleted and insert mode is entered.
-.It Xo
-.Oo Ar n Oc Ns c Ns Ar move-cmd
-.Xc
-Change from the current position to the position resulting from
-.Ar n move-cmd Ns s
-(i.e. delete the indicated region and go into insert mode); if
-.Ar move-cmd
-is
-.Ic c ,
-the line starting from the first non-blank character is changed.
-.It C
-Change from the current position to the end of the line (i.e. delete to the
-end of the line and go into insert mode).
-.It Xo
-.Oo Ar n Oc Ns x
-.Xc
-Delete the next
-.Ar n
-characters.
-.It Xo
-.Oo Ar n Oc Ns X
-.Xc
-Delete the previous
-.Ar n
-characters.
-.It D
-Delete to the end of the line.
-.It Xo
-.Oo Ar n Oc Ns d Ns Ar move-cmd
-.Xc
-Delete from the current position to the position resulting from
-.Ar n move-cmd Ns s ;
-.Ar move-cmd
-is a movement command (see above) or
-.Ic d ,
-in which case the current line is deleted.
-.It Xo
-.Oo Ar n Oc Ns r Ns Ar c
-.Xc
-Replace the next
-.Ar n
-characters with the character
-.Ar c .
-.It Xo
-.Oo Ar n Oc Ns R
-.Xc
-Replace.
-Enter insert mode but overwrite existing characters instead of
-inserting before existing characters.
-The replacement is repeated
-.Ar n
-times.
-.It Xo
-.Oo Ar n Oc Ns \*(TI
-.Xc
-Change the case of the next
-.Ar n
-characters.
-.It Xo
-.Oo Ar n Oc Ns y Ns Ar move-cmd
-.Xc
-Yank from the current position to the position resulting from
-.Ar n move-cmd Ns s
-into the yank buffer; if
-.Ar move-cmd
-is
-.Ic y ,
-the whole line is yanked.
-.It Y
-Yank from the current position to the end of the line.
-.It Xo
-.Oo Ar n Oc Ns p
-.Xc
-Paste the contents of the yank buffer just after the current position,
-.Ar n
-times.
-.It Xo
-.Oo Ar n Oc Ns P
-.Xc
-Same as
-.Ic p ,
-except the buffer is pasted at the current position.
-.El
-.Pp
-Miscellaneous vi commands
-.Bl -tag -width Ds
-.It \*(haJ and \*(haM
-The current line is read, parsed, and executed by the shell.
-.It \*(haL and \*(haR
-Redraw the current line.
-.It Xo
-.Oo Ar n Oc Ns \&.
-.Xc
-Redo the last edit command
-.Ar n
-times.
-.It u
-Undo the last edit command.
-.It U
-Undo all changes that have been made to the current line.
-.It Ar intr No and Ar quit
-The interrupt and quit terminal characters cause the current line to be
-deleted and a new prompt to be printed.
-.El
-.Sh FILES
-.Bl -tag -width XetcXsuid_profile -compact
-.It Pa \*(TI/.mkshrc
-User mkshrc profile (non-privileged interactive shells); see
-.Sx Startup files.
-The location can be changed at compile time (for embedded systems);
-AOSP Android builds use
-.Pa /system/etc/mkshrc .
-.It Pa \*(TI/.profile
-User profile (non-privileged login shells); see
-.Sx Startup files
-near the top of this manual.
-.It Pa /etc/profile
-System profile (login shells); see
-.Sx Startup files.
-.It Pa /etc/shells
-Shell database.
-.It Pa /etc/suid_profile
-Suid profile (privileged shells); see
-.Sx Startup files.
-.El
-.Pp
-Note: On Android,
-.Pa /system/etc/
-contains the system and suid profile.
-.Sh SEE ALSO
-.Xr awk 1 ,
-.Xr cat 1 ,
-.Xr ed 1 ,
-.Xr getopt 1 ,
-.Xr sed 1 ,
-.Xr sh 1 ,
-.Xr stty 1 ,
-.Xr dup 2 ,
-.Xr execve 2 ,
-.Xr getgid 2 ,
-.Xr getuid 2 ,
-.Xr mknod 2 ,
-.Xr mkfifo 2 ,
-.Xr open 2 ,
-.Xr pipe 2 ,
-.Xr rename 2 ,
-.Xr wait 2 ,
-.Xr getopt 3 ,
-.Xr nl_langinfo 3 ,
-.Xr setlocale 3 ,
-.Xr signal 3 ,
-.Xr system 3 ,
-.Xr tty 4 ,
-.Xr shells 5 ,
-.Xr environ 7 ,
-.Xr script 7 ,
-.Xr utf\-8 7 ,
-.Xr mknod 8
-.Pp
-.Pa http://docsrv.sco.com:507/en/man/html.C/sh.C.html
-.Pp
-.Pa https://www.mirbsd.org/ksh\-chan.htm
-.Rs
-.%A Morris Bolsky
-.%B "The KornShell Command and Programming Language"
-.%D 1989
-.%I "Prentice Hall PTR"
-.%P "xvi\ +\ 356 pages"
-.%O "ISBN 978\-0\-13\-516972\-8 (0\-13\-516972\-0)"
-.Re
-.Rs
-.%A Morris I. Bolsky
-.%A David G. Korn
-.%B "The New KornShell Command and Programming Language (2nd Edition)"
-.%D 1995
-.%I "Prentice Hall PTR"
-.%P "xvi\ +\ 400 pages"
-.%O "ISBN 978\-0\-13\-182700\-4 (0\-13\-182700\-6)"
-.Re
-.Rs
-.%A Stephen G. Kochan
-.%A Patrick H. Wood
-.%B "\\*(tNUNIX\\*(sP Shell Programming"
-.%V "Revised Edition"
-.%D 1990
-.%I "Hayden"
-.%P "xi\ +\ 490 pages"
-.%O "ISBN 978\-0\-672\-48448\-3 (0\-672\-48448\-X)"
-.Re
-.Rs
-.%A "IEEE Inc."
-.%B "\\*(tNIEEE\\*(sP Standard for Information Technology \*(en Portable Operating System Interface (POSIX)"
-.%V "Part 2: Shell and Utilities"
-.%D 1993
-.%I "IEEE Press"
-.%P "xvii\ +\ 1195 pages"
-.%O "ISBN 978\-1\-55937\-255\-8 (1\-55937\-255\-9)"
-.Re
-.Rs
-.%A Bill Rosenblatt
-.%B "Learning the Korn Shell"
-.%D 1993
-.%I "O'Reilly"
-.%P "360 pages"
-.%O "ISBN 978\-1\-56592\-054\-5 (1\-56592\-054\-6)"
-.Re
-.Rs
-.%A Bill Rosenblatt
-.%A Arnold Robbins
-.%B "Learning the Korn Shell, Second Edition"
-.%D 2002
-.%I "O'Reilly"
-.%P "432 pages"
-.%O "ISBN 978\-0\-596\-00195\-7 (0\-596\-00195\-9)"
-.Re
-.Rs
-.%A Barry Rosenberg
-.%B "KornShell Programming Tutorial"
-.%D 1991
-.%I "Addison-Wesley Professional"
-.%P "xxi\ +\ 324 pages"
-.%O "ISBN 978\-0\-201\-56324\-5 (0\-201\-56324\-X)"
-.Re
-.Sh AUTHORS
-.Nm "The MirBSD Korn Shell"
-is developed by
-.An Thorsten Glaser Aq tg at mirbsd.org
-and currently maintained as part of The MirOS Project.
-This shell is based upon the Public Domain Korn SHell.
-The developer of mksh recognises the efforts of the pdksh authors,
-who had dedicated their work into Public Domain, our users, and
-all contributors, such as the Debian and OpenBSD projects.
-.\"
-.\" Charles Forsyth, author of the (Public Domain) Bourne Shell clone,
-.\" which mksh is derived from, agreed to the following:
-.\"
-.\" In countries where the Public Domain status of the work may not be
-.\" valid, its primary author hereby grants a copyright licence to the
-.\" general public to deal in the work without restriction and permis-
-.\" sion to sublicence derivates under the terms of any (OSI approved)
-.\" Open Source licence.
-.\"
-See the documentation, CVS, and web site for details.
-.Pp
-The BSD daemon is Copyright \(co Marshall Kirk McKusick.
-The complete legalese is at:
-.Pa https://www.mirbsd.org/TaC\-mksh.txt
-.\"
-.\" This boils down to: feel free to use mksh.ico as application icon
-.\" or shortcut for mksh or mksh/Win32; distro patches are ok (but we
-.\" request they amend $KSH_VERSION when modifying mksh). Authors are
-.\" Marshall Kirk McKusick (UCB), Rick Collette (ekkoBSD), Thorsten
-.\" Glaser, Benny Siegert (MirBSD), Michael Langguth (mksh/Win32).
-.\"
-.\" As far as MirBSD is concerned, the files themselves are free
-.\" to modification and distribution under BSD/MirOS Licence, the
-.\" restriction on use stems only from trademark law's requirement
-.\" to protect it or lose it, which McKusick almost did.
-.\"
-.Sh CAVEATS
-.Nm
-only supports the Unicode BMP (Basic Multilingual Plane).
-.Pp
-.Nm
-has a different scope model from
-.At
-.Nm ksh ,
-which leads to subtile differences in semantics for identical builtins.
-This can cause issues with a
-.Ic nameref
-to suddenly point to a local variable by accident; fixing this is hard.
-.Pp
-The parts of a pipeline, like below, are executed in subshells.
-Thus, variable assignments inside them are not visible in the
-surrounding execution environment.
-Use co-processes instead.
-.Bd -literal -offset indent
-foo \*(Ba bar \*(Ba read baz # will not change $baz
-foo \*(Ba bar \*(Ba& read \-p baz # will, however, do so
-.Ed
-.Pp
-.Nm mksh
-provides a consistent set of 32-bit integer arithmetics, both signed
-and unsigned, with defined wraparound and sign of the result of a modulo
-operation, even (defying POSIX) on 64-bit systems.
-If you require 64-bit integer arithmetics, use
-.Nm lksh Pq legacy mksh
-instead, but be aware that, in POSIX, it's legal for the OS to make
-.Li print $((2147483647 + 1))
-delete all files on your system, as it's Undefined Behaviour.
-.Sh BUGS
-Suspending (using \*(haZ) pipelines like the one below will only suspend
-the currently running part of the pipeline; in this example,
-.Dq fubar
-is immediately printed on suspension (but not later after an
-.Ic fg ) .
-.Bd -literal -offset indent
-$ /bin/sleep 666 && echo fubar
-.Ed
-.Pp
-This document attempts to describe
-.Nm mksh\ R48
-and up,
-compiled without any options impacting functionality, such as
-.Dv MKSH_SMALL ,
-when not called as
-.Pa /bin/sh
-which, on some systems only, enables
-.Ic set \-o sh
-automatically (whose behaviour differs across targets),
-for an operating environment supporting all of its advanced needs.
-Please report bugs in
-.Nm
-to the
-.Mx
-mailing list at
-.Aq miros\-mksh at mirbsd.org
-or in the
-.Li \&#\&!/bin/mksh
-.Pq or Li \&#ksh
-IRC channel at
-.Pa irc.freenode.net
-.Pq Port 6697 SSL, 6667 unencrypted ,
-or at:
-.Pa https://launchpad.net/mksh
Copied: vendor/MirOS/mksh/R50/mksh.1 (from rev 6707, vendor/MirOS/mksh/dist/mksh.1)
===================================================================
--- vendor/MirOS/mksh/R50/mksh.1 (rev 0)
+++ vendor/MirOS/mksh/R50/mksh.1 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,6480 @@
+.\" $MirOS: src/bin/mksh/mksh.1,v 1.336 2014/06/24 20:47:44 tg Exp $
+.\" $OpenBSD: ksh.1,v 1.152 2014/02/12 16:28:13 schwarze Exp $
+.\"-
+.\" Copyright © 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+.\" 2010, 2011, 2012, 2013, 2014
+.\" Thorsten Glaser <tg at mirbsd.org>
+.\"
+.\" Provided that these terms and disclaimer and all copyright notices
+.\" are retained or reproduced in an accompanying document, permission
+.\" is granted to deal in this work without restriction, including un‐
+.\" limited rights to use, publicly perform, distribute, sell, modify,
+.\" merge, give away, or sublicence.
+.\"
+.\" This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
+.\" the utmost extent permitted by applicable law, neither express nor
+.\" implied; without malicious intent or gross negligence. In no event
+.\" may a licensor, author or contributor be held liable for indirect,
+.\" direct, other damage, loss, or other issues arising in any way out
+.\" of dealing in the work, even if advised of the possibility of such
+.\" damage or existence of a defect, except proven that it results out
+.\" of said person’s immediate fault when using the work as intended.
+.\"-
+.\" Try to make GNU groff and AT&T nroff more compatible
+.\" * ` generates ‘ in gnroff, so use \`
+.\" * ' generates ’ in gnroff, \' generates ´, so use \*(aq
+.\" * - generates ‐ in gnroff, \- generates −, so .tr it to -
+.\" thus use - for hyphens and \- for minus signs and option dashes
+.\" * ~ is size-reduced and placed atop in groff, so use \*(TI
+.\" * ^ is size-reduced and placed atop in groff, so use \*(ha
+.\" * \(en does not work in nroff, so use \*(en
+.\" * <>| are problematic, so redefine and use \*(Lt\*(Gt\*(Ba
+.\" Also make sure to use \& especially with two-letter words.
+.\" The section after the "doc" macropackage has been loaded contains
+.\" additional code to convene between the UCB mdoc macropackage (and
+.\" its variant as BSD mdoc in groff) and the GNU mdoc macropackage.
+.\"
+.ie \n(.g \{\
+. if \*[.T]ascii .tr \-\N'45'
+. if \*[.T]latin1 .tr \-\N'45'
+. if \*[.T]utf8 .tr \-\N'45'
+. ds <= \[<=]
+. ds >= \[>=]
+. ds Rq \[rq]
+. ds Lq \[lq]
+. ds sL \(aq
+. ds sR \(aq
+. if \*[.T]utf8 .ds sL `
+. if \*[.T]ps .ds sL `
+. if \*[.T]utf8 .ds sR '
+. if \*[.T]ps .ds sR '
+. ds aq \(aq
+. ds TI \(ti
+. ds ha \(ha
+. ds en \(en
+.\}
+.el \{\
+. ds aq '
+. ds TI ~
+. ds ha ^
+. ds en \(em
+.\}
+.\"
+.\" Implement .Dd with the Mdocdate RCS keyword
+.\"
+.rn Dd xD
+.de Dd
+.ie \\$1$Mdocdate: \{\
+. xD \\$2 \\$3, \\$4
+.\}
+.el .xD \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8
+..
+.\"
+.\" .Dd must come before definition of .Mx, because when called
+.\" with -mandoc, it might implement .Mx itself, but we want to
+.\" use our own definition. And .Dd must come *first*, always.
+.\"
+.Dd $Mdocdate: June 24 2014 $
+.\"
+.\" Check which macro package we use, and do other -mdoc setup.
+.\"
+.ie \n(.g \{\
+. if \*[.T]utf8 .tr \[la]\*(Lt
+. if \*[.T]utf8 .tr \[ra]\*(Gt
+. ie d volume-ds-1 .ds tT gnu
+. el .ds tT bsd
+.\}
+.el .ds tT ucb
+.\"
+.\" Implement .Mx (MirBSD)
+.\"
+.ie "\*(tT"gnu" \{\
+. eo
+. de Mx
+. nr curr-font \n[.f]
+. nr curr-size \n[.ps]
+. ds str-Mx \f[\n[curr-font]]\s[\n[curr-size]u]
+. ds str-Mx1 \*[Tn-font-size]\%MirOS\*[str-Mx]
+. if !\n[arg-limit] \
+. if \n[.$] \{\
+. ds macro-name Mx
+. parse-args \$@
+. \}
+. if (\n[arg-limit] > \n[arg-ptr]) \{\
+. nr arg-ptr +1
+. ie (\n[type\n[arg-ptr]] == 2) \
+. as str-Mx1 \~\*[arg\n[arg-ptr]]
+. el \
+. nr arg-ptr -1
+. \}
+. ds arg\n[arg-ptr] "\*[str-Mx1]
+. nr type\n[arg-ptr] 2
+. ds space\n[arg-ptr] "\*[space]
+. nr num-args (\n[arg-limit] - \n[arg-ptr])
+. nr arg-limit \n[arg-ptr]
+. if \n[num-args] \
+. parse-space-vector
+. print-recursive
+..
+. ec
+. ds sP \s0
+. ds tN \*[Tn-font-size]
+.\}
+.el \{\
+. de Mx
+. nr cF \\n(.f
+. nr cZ \\n(.s
+. ds aa \&\f\\n(cF\s\\n(cZ
+. if \\n(aC==0 \{\
+. ie \\n(.$==0 \&MirOS\\*(aa
+. el .aV \\$1 \\$2 \\$3 \\$4 \\$5 \\$6 \\$7 \\$8 \\$9
+. \}
+. if \\n(aC>\\n(aP \{\
+. nr aP \\n(aP+1
+. ie \\n(C\\n(aP==2 \{\
+. as b1 \&MirOS\ #\&\\*(A\\n(aP\\*(aa
+. ie \\n(aC>\\n(aP \{\
+. nr aP \\n(aP+1
+. nR
+. \}
+. el .aZ
+. \}
+. el \{\
+. as b1 \&MirOS\\*(aa
+. nR
+. \}
+. \}
+..
+.\}
+.\"-
+.Dt MKSH 1
+.Os MirBSD
+.Sh NAME
+.Nm mksh ,
+.Nm sh
+.Nd MirBSD Korn shell
+.Sh SYNOPSIS
+.Nm
+.Bk -words
+.Op Fl +abCefhiklmnprUuvXx
+.Oo
+.Fl T Oo Ar \&! Oc Ns Ar tty
+\*(Ba
+.Ar \&\-
+.Oc
+.Op Fl +o Ar option
+.Oo
+.Fl c Ar string \*(Ba
+.Fl s \*(Ba
+.Ar file
+.Op Ar argument ...
+.Oc
+.Ek
+.Nm builtin-name
+.Op Ar argument ...
+.Sh DESCRIPTION
+.Nm
+is a command interpreter intended for both interactive and shell
+script use.
+Its command language is a superset of the
+.Xr sh C
+shell language and largely compatible to the original Korn shell.
+.Ss I'm an Android user, so what's mksh?
+.Nm mksh
+is a
+.Ux
+shell / command interpreter, similar to
+.Nm COMMAND.COM
+or
+.Nm CMD.EXE ,
+which has been included with
+.Tn Android Open Source Project
+for a while now.
+Basically, it's a program that runs in a terminal (console window),
+takes user input and runs commands or scripts, which it can also
+be asked to do by other programs, even in the background.
+Any privilege pop-ups you might be encountering are thus not
+.Nm mksh
+issues but questions by some other program utilising it.
+.Ss Invocation
+Most builtins can be called directly, for example if a link points from its
+name to the shell; not all make sense, have been tested or work at all though.
+.Pp
+The options are as follows:
+.Bl -tag -width XcXstring
+.It Fl c Ar string
+.Nm
+will execute the command(s) contained in
+.Ar string .
+.It Fl i
+Interactive shell.
+A shell is
+.Dq interactive
+if this
+option is used or if both standard input and standard error are attached
+to a
+.Xr tty 4 .
+An interactive shell has job control enabled, ignores the
+.Dv SIGINT ,
+.Dv SIGQUIT ,
+and
+.Dv SIGTERM
+signals, and prints prompts before reading input (see the
+.Ev PS1
+and
+.Ev PS2
+parameters).
+It also processes the
+.Ev ENV
+parameter or the
+.Pa mkshrc
+file (see below).
+For non-interactive shells, the
+.Ic trackall
+option is on by default (see the
+.Ic set
+command below).
+.It Fl l
+Login shell.
+If the basename the shell is called with (i.e. argv[0])
+starts with
+.Ql \-
+or if this option is used,
+the shell is assumed to be a login shell; see
+.Sx Startup files
+below.
+.It Fl p
+Privileged shell.
+A shell is
+.Dq privileged
+if the real user ID or group ID does not match the
+effective user ID or group ID (see
+.Xr getuid 2
+and
+.Xr getgid 2 ) .
+Clearing the privileged option causes the shell to set
+its effective user ID (group ID) to its real user ID (group ID).
+For further implications, see
+.Sx Startup files .
+If the shell is privileged and this flag is not explicitly set, the
+.Dq privileged
+option is cleared automatically after processing the startup files.
+.It Fl r
+Restricted shell.
+A shell is
+.Dq restricted
+if this
+option is used.
+The following restrictions come into effect after the shell processes any
+profile and
+.Ev ENV
+files:
+.Pp
+.Bl -bullet -compact
+.It
+The
+.Ic cd
+.Po and Ic chdir Pc
+command is disabled.
+.It
+The
+.Ev SHELL ,
+.Ev ENV ,
+and
+.Ev PATH
+parameters cannot be changed.
+.It
+Command names can't be specified with absolute or relative paths.
+.It
+The
+.Fl p
+option of the built-in command
+.Ic command
+can't be used.
+.It
+Redirections that create files can't be used (i.e.\&
+.Ql \*(Gt ,
+.Ql \*(Gt\*(Ba ,
+.Ql \*(Gt\*(Gt ,
+.Ql \*(Lt\*(Gt ) .
+.El
+.It Fl s
+The shell reads commands from standard input; all non-option arguments
+are positional parameters.
+.It Fl T Ar name
+Spawn
+.Nm
+on the
+.Xr tty 4
+device given.
+The paths
+.Ar name ,
+.Pa /dev/ttyC Ns Ar name
+and
+.Pa /dev/tty Ns Ar name
+are attempted in order.
+Unless
+.Ar name
+begins with an exclamation mark
+.Pq Sq \&! ,
+this is done in a subshell and returns immediately.
+If
+.Ar name
+is a dash
+.Pq Sq \&\- ,
+detach from controlling terminal (daemonise) instead.
+.El
+.Pp
+In addition to the above, the options described in the
+.Ic set
+built-in command can also be used on the command line:
+both
+.Op Fl +abCefhkmnuvXx
+and
+.Op Fl +o Ar option
+can be used for single letter or long options, respectively.
+.Pp
+If neither the
+.Fl c
+nor the
+.Fl s
+option is specified, the first non-option argument specifies the name
+of a file the shell reads commands from.
+If there are no non-option
+arguments, the shell reads commands from the standard input.
+The name of the shell (i.e. the contents of $0)
+is determined as follows: if the
+.Fl c
+option is used and there is a non-option argument, it is used as the name;
+if commands are being read from a file, the file is used as the name;
+otherwise, the basename the shell was called with (i.e. argv[0]) is used.
+.Pp
+The exit status of the shell is 127 if the command file specified on the
+command line could not be opened, or non-zero if a fatal syntax error
+occurred during the execution of a script.
+In the absence of fatal errors,
+the exit status is that of the last command executed, or zero, if no
+command is executed.
+.Ss Startup files
+For the actual location of these files, see
+.Sx FILES .
+A login shell processes the system profile first.
+A privileged shell then processes the suid profile.
+A non-privileged login shell processes the user profile next.
+A non-privileged interactive shell checks the value of the
+.Ev ENV
+parameter after subjecting it to parameter, command, arithmetic and tilde
+.Pq Sq \*(TI
+substitution; if unset or empty, the user mkshrc profile is processed;
+otherwise, if a file whose name is the substitution result exists,
+it is processed; non-existence is silently ignored.
+A privileged shell then drops privileges if neither was the
+.Fl p
+option given on the command line nor set during execution of the startup files.
+.Ss Command syntax
+The shell begins parsing its input by removing any backslash-newline
+combinations, then breaking it into
+.Em words .
+Words (which are sequences of characters) are delimited by unquoted whitespace
+characters (space, tab, and newline) or meta-characters
+.Po
+.Ql \*(Lt ,
+.Ql \*(Gt ,
+.Ql \*(Ba ,
+.Ql \&; ,
+.Ql \&( ,
+.Ql \&) ,
+and
+.Ql &
+.Pc .
+Aside from delimiting words, spaces and tabs are ignored, while newlines
+usually delimit commands.
+The meta-characters are used in building the following
+.Em tokens :
+.Ql \*(Lt ,
+.Ql \*(Lt& ,
+.Ql \*(Lt\*(Lt ,
+.Ql \*(Lt\*(Lt\*(Lt ,
+.Ql \*(Gt ,
+.Ql \*(Gt& ,
+.Ql \*(Gt\*(Gt ,
+.Ql &\*(Gt ,
+etc. are used to specify redirections (see
+.Sx Input/output redirection
+below);
+.Ql \*(Ba
+is used to create pipelines;
+.Ql \*(Ba&
+is used to create co-processes (see
+.Sx Co-processes
+below);
+.Ql \&;
+is used to separate commands;
+.Ql &
+is used to create asynchronous pipelines;
+.Ql &&
+and
+.Ql \*(Ba\*(Ba
+are used to specify conditional execution;
+.Ql ;; ,
+.Ql ;&\&
+and
+.Ql ;\*(Ba\&
+are used in
+.Ic case
+statements;
+.Ql \&(( .. ))
+is used in arithmetic expressions;
+and lastly,
+.Ql \&( .. )\&
+is used to create subshells.
+.Pp
+Whitespace and meta-characters can be quoted individually using a backslash
+.Pq Sq \e ,
+or in groups using double
+.Pq Sq \&"
+or single
+.Pq Sq \*(aq
+quotes.
+Note that the following characters are also treated specially by the
+shell and must be quoted if they are to represent themselves:
+.Ql \e ,
+.Ql \&" ,
+.Ql \*(aq ,
+.Ql # ,
+.Ql $ ,
+.Ql \` ,
+.Ql \*(TI ,
+.Ql { ,
+.Ql } ,
+.Ql * ,
+.Ql \&? ,
+and
+.Ql \&[ .
+The first three of these are the above mentioned quoting characters (see
+.Sx Quoting
+below);
+.Ql # ,
+if used at the beginning of a word, introduces a comment \*(en everything after
+the
+.Ql #
+up to the nearest newline is ignored;
+.Ql $
+is used to introduce parameter, command, and arithmetic substitutions (see
+.Sx Substitution
+below);
+.Ql \`
+introduces an old-style command substitution (see
+.Sx Substitution
+below);
+.Ql \*(TI
+begins a directory expansion (see
+.Sx Tilde expansion
+below);
+.Ql {
+and
+.Ql }
+delimit
+.Xr csh 1 Ns -style
+alterations (see
+.Sx Brace expansion
+below);
+and finally,
+.Ql * ,
+.Ql \&? ,
+and
+.Ql \&[
+are used in file name generation (see
+.Sx File name patterns
+below).
+.Pp
+As words and tokens are parsed, the shell builds commands, of which there
+are two basic types:
+.Em simple-commands ,
+typically programmes that are executed, and
+.Em compound-commands ,
+such as
+.Ic for
+and
+.Ic if
+statements, grouping constructs, and function definitions.
+.Pp
+A simple-command consists of some combination of parameter assignments
+(see
+.Sx Parameters
+below),
+input/output redirections (see
+.Sx Input/output redirections
+below),
+and command words; the only restriction is that parameter assignments come
+before any command words.
+The command words, if any, define the command
+that is to be executed and its arguments.
+The command may be a shell built-in command, a function,
+or an external command
+(i.e. a separate executable file that is located using the
+.Ev PATH
+parameter; see
+.Sx Command execution
+below).
+Note that all command constructs have an exit status: for external commands,
+this is related to the status returned by
+.Xr wait 2
+(if the command could not be found, the exit status is 127; if it could not
+be executed, the exit status is 126); the exit status of other command
+constructs (built-in commands, functions, compound-commands, pipelines, lists,
+etc.) are all well-defined and are described where the construct is
+described.
+The exit status of a command consisting only of parameter
+assignments is that of the last command substitution performed during the
+parameter assignment or 0 if there were no command substitutions.
+.Pp
+Commands can be chained together using the
+.Ql \*(Ba
+token to form pipelines, in which the standard output of each command but the
+last is piped (see
+.Xr pipe 2 )
+to the standard input of the following command.
+The exit status of a pipeline is that of its last command, unless the
+.Ic pipefail
+option is set (see there).
+All commands of a pipeline are executed in separate subshells;
+this is allowed by POSIX but differs from both variants of
+.At
+.Nm ksh ,
+where all but the last command were executed in subshells; see the
+.Ic read
+builtin's description for implications and workarounds.
+A pipeline may be prefixed by the
+.Ql \&!
+reserved word which causes the exit status of the pipeline to be logically
+complemented: if the original status was 0, the complemented status will be 1;
+if the original status was not 0, the complemented status will be 0.
+.Pp
+.Em Lists
+of commands can be created by separating pipelines by any of the following
+tokens:
+.Ql && ,
+.Ql \*(Ba\*(Ba ,
+.Ql & ,
+.Ql \*(Ba& ,
+and
+.Ql \&; .
+The first two are for conditional execution:
+.Dq Ar cmd1 No && Ar cmd2
+executes
+.Ar cmd2
+only if the exit status of
+.Ar cmd1
+is zero;
+.Ql \*(Ba\*(Ba
+is the opposite \*(en
+.Ar cmd2
+is executed only if the exit status of
+.Ar cmd1
+is non-zero.
+.Ql &&
+and
+.Ql \*(Ba\*(Ba
+have equal precedence which is higher than that of
+.Ql & ,
+.Ql \*(Ba& ,
+and
+.Ql \&; ,
+which also have equal precedence.
+Note that the
+.Ql &&
+and
+.Ql \*(Ba\*(Ba
+operators are
+.Qq left-associative .
+For example, both of these commands will print only
+.Qq bar :
+.Bd -literal -offset indent
+$ false && echo foo \*(Ba\*(Ba echo bar
+$ true \*(Ba\*(Ba echo foo && echo bar
+.Ed
+.Pp
+The
+.Ql &
+token causes the preceding command to be executed asynchronously; that is,
+the shell starts the command but does not wait for it to complete (the shell
+does keep track of the status of asynchronous commands; see
+.Sx Job control
+below).
+When an asynchronous command is started when job control is disabled
+(i.e. in most scripts), the command is started with signals
+.Dv SIGINT
+and
+.Dv SIGQUIT
+ignored and with input redirected from
+.Pa /dev/null
+(however, redirections specified in the asynchronous command have precedence).
+The
+.Ql \*(Ba&
+operator starts a co-process which is a special kind of asynchronous process
+(see
+.Sx Co-processes
+below).
+Note that a command must follow the
+.Ql &&
+and
+.Ql \*(Ba\*(Ba
+operators, while it need not follow
+.Ql & ,
+.Ql \*(Ba& ,
+or
+.Ql \&; .
+The exit status of a list is that of the last command executed, with the
+exception of asynchronous lists, for which the exit status is 0.
+.Pp
+Compound commands are created using the following reserved words.
+These words
+are only recognised if they are unquoted and if they are used as the first
+word of a command (i.e. they can't be preceded by parameter assignments or
+redirections):
+.Bd -literal -offset indent
+case else function then ! (
+do esac if time [[ ((
+done fi in until {
+elif for select while }
+.Ed
+.Pp
+In the following compound command descriptions, command lists (denoted as
+.Em list )
+that are followed by reserved words must end with a semicolon, a newline, or
+a (syntactically correct) reserved word.
+For example, the following are all valid:
+.Bd -literal -offset indent
+$ { echo foo; echo bar; }
+$ { echo foo; echo bar\*(Ltnewline\*(Gt}
+$ { { echo foo; echo bar; } }
+.Ed
+.Pp
+This is not valid:
+.Pp
+.Dl $ { echo foo; echo bar }
+.Bl -tag -width 4n
+.It Pq Ar list
+Execute
+.Ar list
+in a subshell.
+There is no implicit way to pass environment changes from a
+subshell back to its parent.
+.It { Ar list ; No }
+Compound construct;
+.Ar list
+is executed, but not in a subshell.
+Note that
+.Ql {
+and
+.Ql }
+are reserved words, not meta-characters.
+.It Xo case Ar word No in
+.Oo Op \&(
+.Ar pattern
+.Op \*(Ba Ar pat
+.No ... Ns )
+.Ar list
+.Op ;; \*(Ba ;&\& \*(Ba ;\*(Ba\ \&
+.Oc ... esac
+.Xc
+The
+.Ic case
+statement attempts to match
+.Ar word
+against a specified
+.Ar pattern ;
+the
+.Ar list
+associated with the first successfully matched pattern is executed.
+Patterns used in
+.Ic case
+statements are the same as those used for file name patterns except that the
+restrictions regarding
+.Ql \&.
+and
+.Ql /
+are dropped.
+Note that any unquoted space before and after a pattern is
+stripped; any space within a pattern must be quoted.
+Both the word and the
+patterns are subject to parameter, command, and arithmetic substitution, as
+well as tilde substitution.
+.Pp
+For historical reasons, open and close braces may be used instead of
+.Ic in
+and
+.Ic esac
+e.g.\&
+.Ic case $foo { *) echo bar;; } .
+.Pp
+The list terminators are:
+.Bl -tag -width 4n
+.It Ql ;;
+Terminate after the list.
+.It Ql ;&\&
+Fall through into the next list.
+.It Ql ;\*(Ba\&
+Evaluate the remaining pattern-list tuples.
+.El
+.Pp
+The exit status of a
+.Ic case
+statement is that of the executed
+.Ar list ;
+if no
+.Ar list
+is executed, the exit status is zero.
+.It Xo for Ar name
+.Oo in Ar word No ... Oc ;
+.No do Ar list ; No done
+.Xc
+For each
+.Ar word
+in the specified word list, the parameter
+.Ar name
+is set to the word and
+.Ar list
+is executed.
+If
+.Ic in
+is not used to specify a word list, the positional parameters
+($1, $2, etc.)\&
+are used instead.
+For historical reasons, open and close braces may be used instead of
+.Ic do
+and
+.Ic done
+e.g.\&
+.Ic for i; { echo $i; } .
+The exit status of a
+.Ic for
+statement is the last exit status of
+.Ar list ;
+if
+.Ar list
+is never executed, the exit status is zero.
+.It Xo if Ar list ;
+.No then Ar list ;
+.Oo elif Ar list ;
+.No then Ar list ; Oc
+.No ...
+.Oo else Ar list ; Oc
+.No fi
+.Xc
+If the exit status of the first
+.Ar list
+is zero, the second
+.Ar list
+is executed; otherwise, the
+.Ar list
+following the
+.Ic elif ,
+if any, is executed with similar consequences.
+If all the lists following the
+.Ic if
+and
+.Ic elif Ns s
+fail (i.e. exit with non-zero status), the
+.Ar list
+following the
+.Ic else
+is executed.
+The exit status of an
+.Ic if
+statement is that of non-conditional
+.Ar list
+that is executed; if no non-conditional
+.Ar list
+is executed, the exit status is zero.
+.It Xo select Ar name
+.Oo in Ar word No ... Oc ;
+.No do Ar list ; No done
+.Xc
+The
+.Ic select
+statement provides an automatic method of presenting the user with a menu and
+selecting from it.
+An enumerated list of the specified
+.Ar word Ns (s)
+is printed on standard error, followed by a prompt
+.Po
+.Ev PS3: normally
+.Sq #?\ \&
+.Pc .
+A number corresponding to one of the enumerated words is then read from
+standard input,
+.Ar name
+is set to the selected word (or unset if the selection is not valid),
+.Ev REPLY
+is set to what was read (leading/trailing space is stripped), and
+.Ar list
+is executed.
+If a blank line (i.e. zero or more
+.Ev IFS
+octets) is entered, the menu is reprinted without executing
+.Ar list .
+.Pp
+When
+.Ar list
+completes, the enumerated list is printed if
+.Ev REPLY
+is
+.Dv NULL ,
+the prompt is printed, and so on.
+This process continues until an end-of-file
+is read, an interrupt is received, or a
+.Ic break
+statement is executed inside the loop.
+If
+.Dq in word ...
+is omitted, the positional parameters are used
+(i.e. $1, $2, etc.).
+For historical reasons, open and close braces may be used instead of
+.Ic do
+and
+.Ic done
+e.g.\&
+.Ic select i; { echo $i; } .
+The exit status of a
+.Ic select
+statement is zero if a
+.Ic break
+statement is used to exit the loop, non-zero otherwise.
+.It Xo until Ar list ;
+.No do Ar list ;
+.No done
+.Xc
+This works like
+.Ic while ,
+except that the body is executed only while the exit status of the first
+.Ar list
+is non-zero.
+.It Xo while Ar list ;
+.No do Ar list ;
+.No done
+.Xc
+A
+.Ic while
+is a pre-checked loop.
+Its body is executed as often as the exit status of the first
+.Ar list
+is zero.
+The exit status of a
+.Ic while
+statement is the last exit status of the
+.Ar list
+in the body of the loop; if the body is not executed, the exit status is zero.
+.It Xo function Ar name
+.No { Ar list ; No }
+.Xc
+Defines the function
+.Ar name
+(see
+.Sx Functions
+below).
+Note that redirections specified after a function definition are
+performed whenever the function is executed, not when the function definition
+is executed.
+.It Ar name Ns \&() Ar command
+Mostly the same as
+.Ic function
+(see
+.Sx Functions
+below).
+Whitespace (space or tab) after
+.Ar name
+will be ignored most of the time.
+.It Xo function Ar name Ns \&()
+.No { Ar list ; No }
+.Xc
+The same as
+.Ar name Ns \&()
+.Pq Nm bash Ns ism .
+The
+.Ic function
+keyword is ignored.
+.It Xo Ic time Op Fl p
+.Op Ar pipeline
+.Xc
+The
+.Sx Command execution
+section describes the
+.Ic time
+reserved word.
+.It \&(( Ar expression No ))
+The arithmetic expression
+.Ar expression
+is evaluated; equivalent to
+.Dq let expression
+(see
+.Sx Arithmetic expressions
+and the
+.Ic let
+command, below).
+.It Bq Bq Ar \ \&expression\ \&
+Similar to the
+.Ic test
+and
+.Ic \&[ ... \&]
+commands (described later), with the following exceptions:
+.Bl -bullet
+.It
+Field splitting and file name generation are not performed on arguments.
+.It
+The
+.Fl a
+.Pq AND
+and
+.Fl o
+.Pq OR
+operators are replaced with
+.Ql &&
+and
+.Ql \*(Ba\*(Ba ,
+respectively.
+.It
+Operators (e.g.\&
+.Sq Fl f ,
+.Sq = ,
+.Sq \&! )
+must be unquoted.
+.It
+Parameter, command, and arithmetic substitutions are performed as expressions
+are evaluated and lazy expression evaluation is used for the
+.Ql &&
+and
+.Ql \*(Ba\*(Ba
+operators.
+This means that in the following statement,
+.Ic $(\*(Ltfoo)
+is evaluated if and only if the file
+.Pa foo
+exists and is readable:
+.Bd -literal -offset indent
+$ [[ \-r foo && $(\*(Ltfoo) = b*r ]]
+.Ed
+.It
+The second operand of the
+.Sq !=
+and
+.Sq =
+expressions are a subset of patterns (e.g. the comparison
+.Ic \&[[ foobar = f*r ]]
+succeeds).
+This even works indirectly:
+.Bd -literal -offset indent
+$ bar=foobar; baz=\*(aqf*r\*(aq
+$ [[ $bar = $baz ]]; echo $?
+$ [[ $bar = \&"$baz" ]]; echo $?
+.Ed
+.Pp
+Perhaps surprisingly, the first comparison succeeds,
+whereas the second doesn't.
+This does not apply to all extglob metacharacters, currently.
+.El
+.El
+.Ss Quoting
+Quoting is used to prevent the shell from treating characters or words
+specially.
+There are three methods of quoting.
+First,
+.Ql \e
+quotes the following character, unless it is at the end of a line, in which
+case both the
+.Ql \e
+and the newline are stripped.
+Second, a single quote
+.Pq Sq \*(aq
+quotes everything up to the next single quote (this may span lines).
+Third, a double quote
+.Pq Sq \&"
+quotes all characters, except
+.Ql $ ,
+.Ql \`
+and
+.Ql \e ,
+up to the next unquoted double quote.
+.Ql $
+and
+.Ql \`
+inside double quotes have their usual meaning (i.e. parameter, command, or
+arithmetic substitution) except no field splitting is carried out on the
+results of double-quoted substitutions.
+If a
+.Ql \e
+inside a double-quoted string is followed by
+.Ql \e ,
+.Ql $ ,
+.Ql \` ,
+or
+.Ql \&" ,
+it is replaced by the second character; if it is followed by a newline, both
+the
+.Ql \e
+and the newline are stripped; otherwise, both the
+.Ql \e
+and the character following are unchanged.
+.Pp
+If a single-quoted string is preceded by an unquoted
+.Ql $ ,
+C style backslash expansion (see below) is applied (even single quote
+characters inside can be escaped and do not terminate the string then);
+the expanded result is treated as any other single-quoted string.
+If a double-quoted string is preceded by an unquoted
+.Ql $ ,
+the latter is ignored.
+.Ss Backslash expansion
+In places where backslashes are expanded, certain C and
+.At
+.Nm ksh
+or GNU
+.Nm bash
+style escapes are translated.
+These include
+.Ql \ea ,
+.Ql \eb ,
+.Ql \ef ,
+.Ql \en ,
+.Ql \er ,
+.Ql \et ,
+.Ql \eU######## ,
+.Ql \eu#### ,
+and
+.Ql \ev .
+For
+.Ql \eU########
+and
+.Ql \eu#### ,
+.Dq #
+means a hexadecimal digit, of thich there may be none up to four or eight;
+these escapes translate a Unicode codepoint to UTF-8.
+Furthermore,
+.Ql \eE
+and
+.Ql \ee
+expand to the escape character.
+.Pp
+In the
+.Ic print
+builtin mode,
+.Ql \e" ,
+.Ql \e\*(aq ,
+and
+.Ql \e?
+are explicitly excluded;
+octal sequences must have the none up to three octal digits
+.Dq #
+prefixed with the digit zero
+.Pq Ql \e0### ;
+hexadecimal sequences
+.Ql \ex##
+are limited to none up to two hexadecimal digits
+.Dq # ;
+both octal and hexadecimal sequences convert to raw octets;
+.Ql \e# ,
+where # is none of the above, translates to \e# (backslashes are retained).
+.Pp
+Backslash expansion in the C style mode slightly differs: octal sequences
+.Ql \e###
+must have no digit zero prefixing the one up to three octal digits
+.Dq #
+and yield raw octets; hexadecimal sequences
+.Ql \ex#*
+greedily eat up as many hexadecimal digits
+.Dq #
+as they can and terminate with the first non-hexadecimal digit;
+these translate a Unicode codepoint to UTF-8.
+The sequence
+.Ql \ec# ,
+where
+.Dq #
+is any octet, translates to Ctrl-# (which basically means,
+.Ql \ec?
+becomes DEL, everything else is bitwise ANDed with 0x1F).
+Finally,
+.Ql \e# ,
+where # is none of the above, translates to # (has the backslash trimmed),
+even if it is a newline.
+.Ss Aliases
+There are two types of aliases: normal command aliases and tracked aliases.
+Command aliases are normally used as a short hand for a long or often used
+command.
+The shell expands command aliases (i.e. substitutes the alias name
+for its value) when it reads the first word of a command.
+An expanded alias is re-processed to check for more aliases.
+If a command alias ends in a
+space or tab, the following word is also checked for alias expansion.
+The alias expansion process stops when a word that is not an alias is found,
+when a quoted word is found, or when an alias word that is currently being
+expanded is found.
+Aliases are specifically an interactive feature: while they do happen
+to work in scripts and on the command line in some cases, aliases are
+expanded during lexing, so their use must be in a separate command tree
+from their definition; otherwise, the alias will not be found.
+Noticeably, command lists (separated by semicolon, in command substitutions
+also by newline) may be one same parse tree.
+.Pp
+The following command aliases are defined automatically by the shell:
+.Bd -literal -offset indent
+autoload=\*(aqtypeset \-fu\*(aq
+functions=\*(aqtypeset \-f\*(aq
+hash=\*(aqalias \-t\*(aq
+history=\*(aqfc \-l\*(aq
+integer=\*(aqtypeset \-i\*(aq
+local=\*(aqtypeset\*(aq
+login=\*(aqexec login\*(aq
+nameref=\*(aqtypeset \-n\*(aq
+nohup=\*(aqnohup \*(aq
+r=\*(aqfc \-e \-\*(aq
+stop=\*(aqkill \-STOP\*(aq
+type=\*(aqwhence \-v\*(aq
+.Ed
+.Pp
+Tracked aliases allow the shell to remember where it found a particular
+command.
+The first time the shell does a path search for a command that is
+marked as a tracked alias, it saves the full path of the command.
+The next
+time the command is executed, the shell checks the saved path to see that it
+is still valid, and if so, avoids repeating the path search.
+Tracked aliases can be listed and created using
+.Ic alias \-t .
+Note that changing the
+.Ev PATH
+parameter clears the saved paths for all tracked aliases.
+If the
+.Ic trackall
+option is set (i.e.\&
+.Ic set \-o Ic trackall
+or
+.Ic set \-h ) ,
+the shell tracks all commands.
+This option is set automatically for non-interactive shells.
+For interactive shells, only the following commands are
+automatically tracked:
+.Xr cat 1 ,
+.Xr cc 1 ,
+.Xr chmod 1 ,
+.Xr cp 1 ,
+.Xr date 1 ,
+.Xr ed 1 ,
+.Xr emacs 1 ,
+.Xr grep 1 ,
+.Xr ls 1 ,
+.Xr make 1 ,
+.Xr mv 1 ,
+.Xr pr 1 ,
+.Xr rm 1 ,
+.Xr sed 1 ,
+.Xr sh 1 ,
+.Xr vi 1 ,
+and
+.Xr who 1 .
+.Ss Substitution
+The first step the shell takes in executing a simple-command is to perform
+substitutions on the words of the command.
+There are three kinds of
+substitution: parameter, command, and arithmetic.
+Parameter substitutions,
+which are described in detail in the next section, take the form
+.Pf $ Ns Ar name
+or
+.Pf ${ Ns Ar ... Ns } ;
+command substitutions take the form
+.Pf $( Ns Ar command Ns \&)
+or (deprecated)
+.Pf \` Ns Ar command Ns \`
+or (executed in the current environment)
+.Pf ${\ \& Ar command Ns \&;}
+and strip trailing newlines;
+and arithmetic substitutions take the form
+.Pf $(( Ns Ar expression Ns )) .
+Parsing the current-environment command substitution requires a space,
+tab or newline after the opening brace and that the closing brace be
+recognised as a keyword (i.e. is preceded by a newline or semicolon).
+They are also called funsubs (function substitutions) and behave like
+functions in that
+.Ic local
+and
+.Ic return
+work, and in that
+.Ic exit
+terminates the parent shell.
+.Pp
+Another variant of substitution are the valsubs (value substitutions)
+.Pf ${\*(Ba\& Ns Ar command Ns \&;}
+which are also executed in the current environment, like funsubs, but
+share their I/O with the parent; instead, they evaluate to whatever
+the, initially empty, expression-local variable
+.Ev REPLY
+is set to within the
+.Ar command Ns No s .
+.Pp
+If a substitution appears outside of double quotes, the results of the
+substitution are generally subject to word or field splitting according to
+the current value of the
+.Ev IFS
+parameter.
+The
+.Ev IFS
+parameter specifies a list of octets which are used to break a string up
+into several words; any octets from the set space, tab, and newline that
+appear in the
+.Ev IFS
+octets are called
+.Dq IFS whitespace .
+Sequences of one or more
+.Ev IFS
+whitespace octets, in combination with zero or one
+.Pf non- Ev IFS
+whitespace octets, delimit a field.
+As a special case, leading and trailing
+.Ev IFS
+whitespace and trailing
+.Ev IFS
+non-whitespace are stripped (i.e. no leading or trailing empty field
+is created by it); leading
+.Pf non- Ev IFS
+whitespace does create an empty field.
+.Pp
+Example: If
+.Ev IFS
+is set to
+.Dq \*(Ltspace\*(Gt: ,
+and VAR is set to
+.Dq \*(Ltspace\*(GtA\*(Ltspace\*(Gt:\*(Ltspace\*(Gt\*(Ltspace\*(GtB::D ,
+the substitution for $VAR results in four fields:
+.Sq A ,
+.Sq B ,
+.Sq
+(an empty field),
+and
+.Sq D .
+Note that if the
+.Ev IFS
+parameter is set to the
+.Dv NULL
+string, no field splitting is done; if the parameter is unset, the default
+value of space, tab, and newline is used.
+.Pp
+Also, note that the field splitting applies only to the immediate result of
+the substitution.
+Using the previous example, the substitution for $VAR:E
+results in the fields:
+.Sq A ,
+.Sq B ,
+.Sq ,
+and
+.Sq D:E ,
+not
+.Sq A ,
+.Sq B ,
+.Sq ,
+.Sq D ,
+and
+.Sq E .
+This behavior is POSIX compliant, but incompatible with some other shell
+implementations which do field splitting on the word which contained the
+substitution or use
+.Dv IFS
+as a general whitespace delimiter.
+.Pp
+The results of substitution are, unless otherwise specified, also subject to
+brace expansion and file name expansion (see the relevant sections below).
+.Pp
+A command substitution is replaced by the output generated by the specified
+command which is run in a subshell.
+For
+.Pf $( Ns Ar command Ns \&)
+and
+.Pf ${\ \& Ar command Ns \&;}
+substitutions, normal quoting rules are used when
+.Ar command
+is parsed; however, for the deprecated
+.Pf \` Ns Ar command Ns \`
+form, a
+.Ql \e
+followed by any of
+.Ql $ ,
+.Ql \` ,
+or
+.Ql \e
+is stripped (a
+.Ql \e
+followed by any other character is unchanged).
+As a special case in command substitutions, a command of the form
+.Pf \*(Lt Ar file
+is interpreted to mean substitute the contents of
+.Ar file .
+Note that
+.Ic $(\*(Ltfoo)
+has the same effect as
+.Ic $(cat foo) .
+.Pp
+Note that some shells do not use a recursive parser for command substitutions,
+leading to failure for certain constructs; to be portable, use as workaround
+.Ql x=$(cat) \*(Lt\*(Lt"EOF"
+(or the newline-keeping
+.Ql x=\*(Lt\*(Lt"EOF"
+extension) instead to merely slurp the string.
+.St -p1003.1
+recommends to use case statements of the form
+.Ql "x=$(case $foo in (bar) echo $bar ;; (*) echo $baz ;; esac)"
+instead, which would work but not serve as example for this portability issue.
+.Bd -literal -offset indent
+x=$(case $foo in bar) echo $bar ;; *) echo $baz ;; esac)
+# above fails to parse on old shells; below is the workaround
+x=$(eval $(cat)) \*(Lt\*(Lt"EOF"
+case $foo in bar) echo $bar ;; *) echo $baz ;; esac
+EOF
+.Ed
+.Pp
+Arithmetic substitutions are replaced by the value of the specified expression.
+For example, the command
+.Ic print $((2+3*4))
+displays 14.
+See
+.Sx Arithmetic expressions
+for a description of an expression.
+.Ss Parameters
+Parameters are shell variables; they can be assigned values and their values
+can be accessed using a parameter substitution.
+A parameter name is either one
+of the special single punctuation or digit character parameters described
+below, or a letter followed by zero or more letters or digits
+.Po
+.Ql _
+counts as a letter
+.Pc .
+The latter form can be treated as arrays by appending an array index of the
+form
+.Op Ar expr
+where
+.Ar expr
+is an arithmetic expression.
+Array indices in
+.Nm
+are limited to the range 0 through 4294967295, inclusive.
+That is, they are a 32-bit unsigned integer.
+.Pp
+Parameter substitutions take the form
+.Pf $ Ns Ar name ,
+.Pf ${ Ns Ar name Ns } ,
+or
+.Sm off
+.Pf ${ Ar name Oo Ar expr Oc }
+.Sm on
+where
+.Ar name
+is a parameter name.
+Substitution of all array elements with
+.Pf ${ Ns Ar name Ns \&[*]}
+and
+.Pf ${ Ns Ar name Ns \&[@]}
+works equivalent to $* and $@ for positional parameters.
+If substitution is performed on a parameter
+(or an array parameter element)
+that is not set, a null string is substituted unless the
+.Ic nounset
+option
+.Po
+.Ic set Fl o Ic nounset
+or
+.Ic set Fl u
+.Pc
+is set, in which case an error occurs.
+.Pp
+Parameters can be assigned values in a number of ways.
+First, the shell implicitly sets some parameters like
+.Ql # ,
+.Ql PWD ,
+and
+.Ql $ ;
+this is the only way the special single character parameters are set.
+Second, parameters are imported from the shell's environment at startup.
+Third, parameters can be assigned values on the command line: for example,
+.Ic FOO=bar
+sets the parameter
+.Dq FOO
+to
+.Dq bar ;
+multiple parameter assignments can be given on a single command line and they
+can be followed by a simple-command, in which case the assignments are in
+effect only for the duration of the command (such assignments are also
+exported; see below for the implications of this).
+Note that both the parameter name and the
+.Ql =
+must be unquoted for the shell to recognise a parameter assignment.
+The construct
+.Ic FOO+=baz
+is also recognised; the old and new values are immediately concatenated.
+The fourth way of setting a parameter is with the
+.Ic export ,
+.Ic global ,
+.Ic readonly ,
+and
+.Ic typeset
+commands; see their descriptions in the
+.Sx Command execution
+section.
+Fifth,
+.Ic for
+and
+.Ic select
+loops set parameters as well as the
+.Ic getopts ,
+.Ic read ,
+and
+.Ic set \-A
+commands.
+Lastly, parameters can be assigned values using assignment operators
+inside arithmetic expressions (see
+.Sx Arithmetic expressions
+below) or using the
+.Sm off
+.Pf ${ Ar name No = Ar value No }
+.Sm on
+form of the parameter substitution (see below).
+.Pp
+Parameters with the export attribute (set using the
+.Ic export
+or
+.Ic typeset Fl x
+commands, or by parameter assignments followed by simple commands) are put in
+the environment (see
+.Xr environ 7 )
+of commands run by the shell as
+.Ar name Ns = Ns Ar value
+pairs.
+The order in which parameters appear in the environment of a command is
+unspecified.
+When the shell starts up, it extracts parameters and their values
+from its environment and automatically sets the export attribute for those
+parameters.
+.Pp
+Modifiers can be applied to the
+.Pf ${ Ns Ar name Ns }
+form of parameter substitution:
+.Bl -tag -width Ds
+.Sm off
+.It ${ Ar name No :\- Ar word No }
+.Sm on
+If
+.Ar name
+is set and not
+.Dv NULL ,
+it is substituted; otherwise,
+.Ar word
+is substituted.
+.Sm off
+.It ${ Ar name No :+ Ar word No }
+.Sm on
+If
+.Ar name
+is set and not
+.Dv NULL ,
+.Ar word
+is substituted; otherwise, nothing is substituted.
+.Sm off
+.It ${ Ar name No := Ar word No }
+.Sm on
+If
+.Ar name
+is set and not
+.Dv NULL ,
+it is substituted; otherwise, it is assigned
+.Ar word
+and the resulting value of
+.Ar name
+is substituted.
+.Sm off
+.It ${ Ar name No :? Ar word No }
+.Sm on
+If
+.Ar name
+is set and not
+.Dv NULL ,
+it is substituted; otherwise,
+.Ar word
+is printed on standard error (preceded by
+.Ar name : )
+and an error occurs (normally causing termination of a shell script, function,
+or script sourced using the
+.Sq \&.
+built-in).
+If
+.Ar word
+is omitted, the string
+.Dq parameter null or not set
+is used instead.
+Currently a bug, if
+.Ar word
+is a variable which expands to the null string, the
+error message is also printed.
+.El
+.Pp
+Note that, for all of the above,
+.Ar word
+is actually considered quoted, and special parsing rules apply.
+The parsing rules also differ on whether the expression is double-quoted:
+.Ar word
+then uses double-quoting rules, except for the double quote itself
+.Pq Sq \&"
+and the closing brace, which, if backslash escaped, gets quote removal applied.
+.Pp
+In the above modifiers, the
+.Ql \&:
+can be omitted, in which case the conditions only depend on
+.Ar name
+being set (as opposed to set and not
+.Dv NULL ) .
+If
+.Ar word
+is needed, parameter, command, arithmetic, and tilde substitution are performed
+on it; if
+.Ar word
+is not needed, it is not evaluated.
+.Pp
+The following forms of parameter substitution can also be used (if
+.Ar name
+is an array, its element #0 will be substituted in a scalar context):
+.Pp
+.Bl -tag -width Ds -compact
+.It Pf ${# Ns Ar name Ns \&}
+The number of positional parameters if
+.Ar name
+is
+.Ql * ,
+.Ql @ ,
+or not specified; otherwise the length
+.Pq in characters
+of the string value of parameter
+.Ar name .
+.Pp
+.It Pf ${# Ns Ar name Ns \&[*]}
+.It Pf ${# Ns Ar name Ns \&[@]}
+The number of elements in the array
+.Ar name .
+.Pp
+.It Pf ${% Ns Ar name Ns \&}
+The width
+.Pq in screen columns
+of the string value of parameter
+.Ar name ,
+or \-1 if
+.Pf ${ Ns Ar name Ns }
+contains a control character.
+.Pp
+.It Pf ${! Ns Ar name Ns }
+The name of the variable referred to by
+.Ar name .
+This will be
+.Ar name
+except when
+.Ar name
+is a name reference (bound variable), created by the
+.Ic nameref
+command (which is an alias for
+.Ic typeset Fl n ) .
+.Pp
+.It Pf ${! Ns Ar name Ns \&[*]}
+.It Pf ${! Ns Ar name Ns \&[@]}
+The names of indices (keys) in the array
+.Ar name .
+.Pp
+.Sm off
+.It Xo
+.Pf ${ Ar name
+.Pf # Ar pattern No }
+.Xc
+.It Xo
+.Pf ${ Ar name
+.Pf ## Ar pattern No }
+.Xc
+.Sm on
+If
+.Ar pattern
+matches the beginning of the value of parameter
+.Ar name ,
+the matched text is deleted from the result of substitution.
+A single
+.Ql #
+results in the shortest match, and two
+of them result in the longest match.
+Cannot be applied to a vector
+.Pq ${*} or ${@} or ${array[*]} or ${array[@]} .
+.Pp
+.Sm off
+.It Xo
+.Pf ${ Ar name
+.Pf % Ar pattern No }
+.Xc
+.It Xo
+.Pf ${ Ar name
+.Pf %% Ar pattern No }
+.Xc
+.Sm on
+Like ${..#..} substitution, but it deletes from the end of the value.
+Cannot be applied to a vector.
+.Pp
+.Sm off
+.It Xo
+.Pf ${ Ar name
+.Pf / Ar pattern / Ar string No }
+.Xc
+.It Xo
+.Pf ${ Ar name
+.Pf // Ar pattern / Ar string No }
+.Xc
+.Sm on
+Like ${..#..} substitution, but it replaces the longest match of
+.Ar pattern ,
+anchored anywhere in the value, with
+.Ar string .
+If
+.Ar pattern
+begins with
+.Ql # ,
+it is anchored at the beginning of the value; if it begins with
+.Ql % ,
+it is anchored at the end.
+Patterns that are empty or consist only of wildcards are invalid.
+A single
+.Ql /
+replaces the first occurence of the search
+.Ar pattern ,
+and two of them replace all occurences.
+If
+.Pf / Ar string
+is omitted, the
+.Ar pattern
+is replaced by the empty string, i.e. deleted.
+Cannot be applied to a vector.
+Inefficiently implemented, may be slow.
+.Pp
+.Sm off
+.It Xo
+.Pf ${ Ar name : Ns Ar pos
+.Pf : Ns Ar len Ns }
+.Xc
+.Sm on
+The first
+.Ar len
+characters of
+.Ar name ,
+starting at position
+.Ar pos ,
+are substituted.
+Both
+.Ar pos
+and
+.Pf : Ns Ar len
+are optional.
+If
+.Ar pos
+is negative, counting starts at the end of the string; if it
+is omitted, it defaults to 0.
+If
+.Ar len
+is omitted or greater than the length of the remaining string,
+all of it is substituted.
+Both
+.Ar pos
+and
+.Ar len
+are evaluated as arithmetic expressions.
+Currently,
+.Ar pos
+must start with a space, opening parenthesis or digit to be recognised.
+Cannot be applied to a vector.
+.Pp
+.It Pf ${ Ns Ar name Ns @#}
+The hash (using the BAFH algorithm) of the expansion of
+.Ar name .
+This is also used internally for the shell's hashtables.
+.Pp
+.It Pf ${ Ns Ar name Ns @Q}
+A quoted expression safe for re-entry, whose value is the value of the
+.Ar name
+parameter, is substituted.
+.El
+.Pp
+Note that
+.Ar pattern
+may need extended globbing pattern
+.Pq @(...) ,
+single
+.Pq \&\*(aq...\&\*(aq
+or double
+.Pq \&"...\&"
+quote escaping unless
+.Fl o Ic sh
+is set.
+.Pp
+The following special parameters are implicitly set by the shell and cannot be
+set directly using assignments:
+.Bl -tag -width "1 .. 9"
+.It Ev \&!
+Process ID of the last background process started.
+If no background processes have been started, the parameter is not set.
+.It Ev \&#
+The number of positional parameters ($1, $2, etc.).
+.It Ev \&$
+The PID of the shell, or the PID of the original shell if it is a subshell.
+Do
+.Em NOT
+use this mechanism for generating temporary file names; see
+.Xr mktemp 1
+instead.
+.It Ev \-
+The concatenation of the current single letter options (see the
+.Ic set
+command below for a list of options).
+.It Ev \&?
+The exit status of the last non-asynchronous command executed.
+If the last command was killed by a signal,
+.Ic $?\&
+is set to 128 plus the signal number.
+.It Ev 0
+The name of the shell, determined as follows:
+the first argument to
+.Nm
+if it was invoked with the
+.Fl c
+option and arguments were given; otherwise the
+.Ar file
+argument, if it was supplied;
+or else the basename the shell was invoked with (i.e.\&
+.Li argv[0] ) .
+.Ev $0
+is also set to the name of the current script or
+the name of the current function, if it was defined with the
+.Ic function
+keyword (i.e. a Korn shell style function).
+.It Ev 1 No .. Ev 9
+The first nine positional parameters that were supplied to the shell, function,
+or script sourced using the
+.Sq \&.
+built-in.
+Further positional parameters may be accessed using
+.Pf ${ Ar number Ns } .
+.It Ev *
+All positional parameters (except 0), i.e. $1, $2, $3, ...
+.br
+If used
+outside of double quotes, parameters are separate words (which are subjected
+to word splitting); if used within double quotes, parameters are separated
+by the first character of the
+.Ev IFS
+parameter (or the empty string if
+.Ev IFS
+is
+.Dv NULL ) .
+.It Ev @
+Same as
+.Ic $* ,
+unless it is used inside double quotes, in which case a separate word is
+generated for each positional parameter.
+If there are no positional parameters, no word is generated.
+.Ic $@
+can be used to access arguments, verbatim, without losing
+.Dv NULL
+arguments or splitting arguments with spaces.
+.El
+.Pp
+The following parameters are set and/or used by the shell:
+.Bl -tag -width "KSH_VERSION"
+.It Ev _
+.Pq underscore
+When an external command is executed by the shell, this parameter is set in the
+environment of the new process to the path of the executed command.
+In interactive use, this parameter is also set in the parent shell to the last
+word of the previous command.
+.It Ev BASHPID
+The PID of the shell or subshell.
+.It Ev CDPATH
+Search path for the
+.Ic cd
+built-in command.
+It works the same way as
+.Ev PATH
+for those directories not beginning with
+.Ql /
+in
+.Ic cd
+commands.
+Note that if
+.Ev CDPATH
+is set and does not contain
+.Sq \&.
+or contains an empty path, the current directory is not searched.
+Also, the
+.Ic cd
+built-in command will display the resulting directory when a match is found
+in any search path other than the empty path.
+.It Ev COLUMNS
+Set to the number of columns on the terminal or window.
+Always set, defaults to 80, unless the
+value as reported by
+.Xr stty 1
+is non-zero and sane enough (minimum is 12x3); similar for
+.Ev LINES .
+This parameter is used by the interactive line editing modes, and by the
+.Ic select ,
+.Ic set \-o ,
+and
+.Ic kill \-l
+commands to format information columns.
+Importing from the environment or unsetting this parameter removes the
+binding to the actual terminal size in favour of the provided value.
+.It Ev ENV
+If this parameter is found to be set after any profile files are executed, the
+expanded value is used as a shell startup file.
+It typically contains function and alias definitions.
+.It Ev ERRNO
+Integer value of the shell's
+.Va errno
+variable.
+It indicates the reason the last system call failed.
+Not yet implemented.
+.It Ev EXECSHELL
+If set, this parameter is assumed to contain the shell that is to be used to
+execute commands that
+.Xr execve 2
+fails to execute and which do not start with a
+.Dq #! Ns Ar shell
+sequence.
+.It Ev FCEDIT
+The editor used by the
+.Ic fc
+command (see below).
+.It Ev FPATH
+Like
+.Ev PATH ,
+but used when an undefined function is executed to locate the file defining the
+function.
+It is also searched when a command can't be found using
+.Ev PATH .
+See
+.Sx Functions
+below for more information.
+.It Ev HISTFILE
+The name of the file used to store command history.
+When assigned to, history is loaded from the specified file.
+Also, several invocations of the shell will share history if their
+.Ev HISTFILE
+parameters all point to the same file.
+.Pp
+.Sy Note :
+If
+.Ev HISTFILE
+isn't set, no history file is used.
+This is different from
+.At
+.Nm ksh .
+.It Ev HISTSIZE
+The number of commands normally stored for history.
+The default is 2047.
+.It Ev HOME
+The default directory for the
+.Ic cd
+command and the value substituted for an unqualified
+.Ic \*(TI
+(see
+.Sx Tilde expansion
+below).
+.It Ev IFS
+Internal field separator, used during substitution and by the
+.Ic read
+command, to split values into distinct arguments; normally set to space, tab,
+and newline.
+See
+.Sx Substitution
+above for details.
+.Pp
+.Sy Note :
+This parameter is not imported from the environment when the shell is
+started.
+.It Ev KSHEGID
+The effective group id of the shell.
+.It Ev KSHGID
+The real group id of the shell.
+.It Ev KSHUID
+The real user id of the shell.
+.It Ev KSH_VERSION
+The name and version of the shell (read-only).
+See also the version commands in
+.Sx Emacs editing mode
+and
+.Sx Vi editing mode
+sections, below.
+.It Ev LINENO
+The line number of the function or shell script that is currently being
+executed.
+.It Ev LINES
+Set to the number of lines on the terminal or window.
+Always set, defaults to 24.
+See
+.Ev COLUMNS .
+.It Ev EPOCHREALTIME
+Time since the epoch, as returned by
+.Xr gettimeofday 2 ,
+formatted as decimal
+.Va tv_sec
+followed by a dot
+.Pq Sq .\&
+and
+.Va tv_usec
+padded to exactly six decimal digits.
+.It Ev OLDPWD
+The previous working directory.
+Unset if
+.Ic cd
+has not successfully changed directories since the shell started, or if the
+shell doesn't know where it is.
+.It Ev OPTARG
+When using
+.Ic getopts ,
+it contains the argument for a parsed option, if it requires one.
+.It Ev OPTIND
+The index of the next argument to be processed when using
+.Ic getopts .
+Assigning 1 to this parameter causes
+.Ic getopts
+to process arguments from the beginning the next time it is invoked.
+.It Ev PATH
+A colon separated list of directories that are searched when looking for
+commands and files sourced using the
+.Sq \&.
+command (see below).
+An empty string resulting from a leading or trailing
+colon, or two adjacent colons, is treated as a
+.Sq \&.
+(the current directory).
+.It Ev PGRP
+The process ID of the shell's process group leader.
+.It Ev PIPESTATUS
+An array containing the errorlevel (exit status) codes,
+one by one, of the last pipeline run in the foreground.
+.It Ev PPID
+The process ID of the shell's parent.
+.It Ev PS1
+The primary prompt for interactive shells.
+Parameter, command, and arithmetic
+substitutions are performed, and
+.Ql \&!
+is replaced with the current command number (see the
+.Ic fc
+command below).
+A literal
+.Ql \&!
+can be put in the prompt by placing
+.Ql !!
+in
+.Ev PS1 .
+.Pp
+The default prompt is
+.Sq $\ \&
+for non-root users,
+.Sq #\ \&
+for root.
+If
+.Nm
+is invoked by root and
+.Ev PS1
+does not contain a
+.Sq #
+character, the default value will be used even if
+.Ev PS1
+already exists in the environment.
+.Pp
+The
+.Nm
+distribution comes with a sample
+.Pa dot.mkshrc
+containing a sophisticated example, but you might like the following one
+(note that ${HOSTNAME:=$(hostname)} and the
+root-vs-user distinguishing clause are (in this example) executed at
+.Ev PS1
+assignment time, while the $USER and $PWD are escaped
+and thus will be evaluated each time a prompt is displayed):
+.Bd -literal
+PS1=\*(aq${USER:=$(id \-un)}\*(aq"@${HOSTNAME:=$(hostname)}:\e$PWD $(
+ if (( USER_ID )); then print \e$; else print \e#; fi) "
+.Ed
+.Pp
+Note that since the command-line editors try to figure out how long the prompt
+is (so they know how far it is to the edge of the screen), escape codes in
+the prompt tend to mess things up.
+You can tell the shell not to count certain
+sequences (such as escape codes) by prefixing your prompt with a
+character (such as Ctrl-A) followed by a carriage return and then delimiting
+the escape codes with this character.
+Any occurences of that character in the prompt are not printed.
+By the way, don't blame me for
+this hack; it's derived from the original
+.Xr ksh88 1 ,
+which did print the delimiter character so you were out of luck
+if you did not have any non-printing characters.
+.Pp
+Since Backslashes and other special characters may be
+interpreted by the shell, to set
+.Ev PS1
+either escape the backslash itself,
+or use double quotes.
+The latter is more practical.
+This is a more complex example,
+avoiding to directly enter special characters (for example with
+.Ic \*(haV
+in the emacs editing mode),
+which embeds the current working directory,
+in reverse video
+.Pq colour would work, too ,
+in the prompt string:
+.Bd -literal -offset indent
+x=$(print \e\e001)
+PS1="$x$(print \e\er)$x$(tput so)$x\e$PWD$x$(tput se)$x\*(Gt "
+.Ed
+.Pp
+Due to a strong suggestion from David G. Korn,
+.Nm
+now also supports the following form:
+.Bd -literal -offset indent
+PS1=$'\e1\er\e1\ee[7m\e1$PWD\e1\ee[0m\e1\*(Gt '
+.Ed
+.It Ev PS2
+Secondary prompt string, by default
+.Sq \*(Gt\ \& ,
+used when more input is needed to complete a command.
+.It Ev PS3
+Prompt used by the
+.Ic select
+statement when reading a menu selection.
+The default is
+.Sq #?\ \& .
+.It Ev PS4
+Used to prefix commands that are printed during execution tracing (see the
+.Ic set Fl x
+command below).
+Parameter, command, and arithmetic substitutions are performed
+before it is printed.
+The default is
+.Sq +\ \& .
+You may want to set it to
+.Sq \&[$EPOCHREALTIME]\ \&
+instead, to include timestamps.
+.It Ev PWD
+The current working directory.
+May be unset or
+.Dv NULL
+if the shell doesn't know where it is.
+.It Ev RANDOM
+Each time
+.Ev RANDOM
+is referenced, it is assigned a number between 0 and 32767 from
+a Linear Congruential PRNG first.
+.It Ev REPLY
+Default parameter for the
+.Ic read
+command if no names are given.
+Also used in
+.Ic select
+loops to store the value that is read from standard input.
+.It Ev SECONDS
+The number of seconds since the shell started or, if the parameter has been
+assigned an integer value, the number of seconds since the assignment plus the
+value that was assigned.
+.It Ev TMOUT
+If set to a positive integer in an interactive shell, it specifies the maximum
+number of seconds the shell will wait for input after printing the primary
+prompt
+.Pq Ev PS1 .
+If the time is exceeded, the shell exits.
+.It Ev TMPDIR
+The directory temporary shell files are created in.
+If this parameter is not
+set, or does not contain the absolute path of a writable directory, temporary
+files are created in
+.Pa /tmp .
+.It Ev USER_ID
+The effective user id of the shell.
+.El
+.Ss Tilde expansion
+Tilde expansion which is done in parallel with parameter substitution, is done
+on words starting with an unquoted
+.Ql \*(TI .
+The characters following the tilde, up to the first
+.Ql / ,
+if any, are assumed to be a login name.
+If the login name is empty,
+.Ql + ,
+or
+.Ql \- ,
+the value of the
+.Ev HOME ,
+.Ev PWD ,
+or
+.Ev OLDPWD
+parameter is substituted, respectively.
+Otherwise, the password file is
+searched for the login name, and the tilde expression is substituted with the
+user's home directory.
+If the login name is not found in the password file or
+if any quoting or parameter substitution occurs in the login name, no
+substitution is performed.
+.Pp
+In parameter assignments
+(such as those preceding a simple-command or those occurring
+in the arguments of
+.Ic alias ,
+.Ic export ,
+.Ic global ,
+.Ic readonly ,
+and
+.Ic typeset ) ,
+tilde expansion is done after any assignment
+(i.e. after the equals sign)
+or after an unquoted colon
+.Pq Sq \&: ;
+login names are also delimited by colons.
+.Pp
+The home directory of previously expanded login names are cached and re-used.
+The
+.Ic alias \-d
+command may be used to list, change, and add to this cache (e.g.\&
+.Ic alias \-d fac=/usr/local/facilities; cd \*(TIfac/bin ) .
+.Ss Brace expansion (alteration)
+Brace expressions take the following form:
+.Bd -unfilled -offset indent
+.Sm off
+.Xo
+.Ar prefix No { Ar str1 No ,...,
+.Ar strN No } Ar suffix
+.Xc
+.Sm on
+.Ed
+.Pp
+The expressions are expanded to
+.Ar N
+words, each of which is the concatenation of
+.Ar prefix ,
+.Ar str Ns i ,
+and
+.Ar suffix
+(e.g.\&
+.Dq a{c,b{X,Y},d}e
+expands to four words:
+.Dq ace ,
+.Dq abXe ,
+.Dq abYe ,
+and
+.Dq ade ) .
+As noted in the example, brace expressions can be nested and the resulting
+words are not sorted.
+Brace expressions must contain an unquoted comma
+.Pq Sq \&,
+for expansion to occur (e.g.\&
+.Ic {}
+and
+.Ic {foo}
+are not expanded).
+Brace expansion is carried out after parameter substitution
+and before file name generation.
+.Ss File name patterns
+A file name pattern is a word containing one or more unquoted
+.Ql \&? ,
+.Ql * ,
+.Ql + ,
+.Ql @ ,
+or
+.Ql \&!
+characters or
+.Dq \&[..]
+sequences.
+Once brace expansion has been performed, the shell replaces file
+name patterns with the sorted names of all the files that match the pattern
+(if no files match, the word is left unchanged).
+The pattern elements have the following meaning:
+.Bl -tag -width Ds
+.It \&?
+Matches any single character.
+.It \&*
+Matches any sequence of octets.
+.It \&[..]
+Matches any of the octets inside the brackets.
+Ranges of octets can be specified by separating two octets by a
+.Ql \-
+(e.g.\&
+.Dq \&[a0\-9]
+matches the letter
+.Sq a
+or any digit).
+In order to represent itself, a
+.Ql \-
+must either be quoted or the first or last octet in the octet list.
+Similarly, a
+.Ql \&]
+must be quoted or the first octet in the list if it is to represent itself
+instead of the end of the list.
+Also, a
+.Ql \&!
+appearing at the start of the list has special meaning (see below), so to
+represent itself it must be quoted or appear later in the list.
+.It \&[!..]
+Like [..],
+except it matches any octet not inside the brackets.
+.Sm off
+.It *( Ar pattern\*(Ba No ...\*(Ba Ar pattern )
+.Sm on
+Matches any string of octets that matches zero or more occurrences of the
+specified patterns.
+Example: The pattern
+.Ic *(foo\*(Babar)
+matches the strings
+.Dq ,
+.Dq foo ,
+.Dq bar ,
+.Dq foobarfoo ,
+etc.
+.Sm off
+.It +( Ar pattern\*(Ba No ...\*(Ba Ar pattern )
+.Sm on
+Matches any string of octets that matches one or more occurrences of the
+specified patterns.
+Example: The pattern
+.Ic +(foo\*(Babar)
+matches the strings
+.Dq foo ,
+.Dq bar ,
+.Dq foobar ,
+etc.
+.Sm off
+.It ?( Ar pattern\*(Ba No ...\*(Ba Ar pattern )
+.Sm on
+Matches the empty string or a string that matches one of the specified
+patterns.
+Example: The pattern
+.Ic ?(foo\*(Babar)
+only matches the strings
+.Dq ,
+.Dq foo ,
+and
+.Dq bar .
+.Sm off
+.It @( Ar pattern\*(Ba No ...\*(Ba Ar pattern )
+.Sm on
+Matches a string that matches one of the specified patterns.
+Example: The pattern
+.Ic @(foo\*(Babar)
+only matches the strings
+.Dq foo
+and
+.Dq bar .
+.Sm off
+.It !( Ar pattern\*(Ba No ...\*(Ba Ar pattern )
+.Sm on
+Matches any string that does not match one of the specified patterns.
+Examples: The pattern
+.Ic !(foo\*(Babar)
+matches all strings except
+.Dq foo
+and
+.Dq bar ;
+the pattern
+.Ic !(*)
+matches no strings; the pattern
+.Ic !(?)*\&
+matches all strings (think about it).
+.El
+.Pp
+Note that complicated globbing, especially with alternatives,
+is slow; using separate comparisons may (or may not) be faster.
+.Pp
+Note that
+.Nm mksh
+.Po and Nm pdksh Pc
+never matches
+.Sq \&.
+and
+.Sq .. ,
+but
+.At
+.Nm ksh ,
+Bourne
+.Nm sh ,
+and GNU
+.Nm bash
+do.
+.Pp
+Note that none of the above pattern elements match either a period
+.Pq Sq \&.
+at the start of a file name or a slash
+.Pq Sq / ,
+even if they are explicitly used in a [..] sequence; also, the names
+.Sq \&.
+and
+.Sq ..
+are never matched, even by the pattern
+.Sq .* .
+.Pp
+If the
+.Ic markdirs
+option is set, any directories that result from file name generation are marked
+with a trailing
+.Ql / .
+.Ss Input/output redirection
+When a command is executed, its standard input, standard output, and standard
+error (file descriptors 0, 1, and 2, respectively) are normally inherited from
+the shell.
+Three exceptions to this are commands in pipelines, for which
+standard input and/or standard output are those set up by the pipeline,
+asynchronous commands created when job control is disabled, for which standard
+input is initially set to be from
+.Pa /dev/null ,
+and commands for which any of the following redirections have been specified:
+.Bl -tag -width XXxxmarker
+.It \*(Gt Ar file
+Standard output is redirected to
+.Ar file .
+If
+.Ar file
+does not exist, it is created; if it does exist, is a regular file, and the
+.Ic noclobber
+option is set, an error occurs; otherwise, the file is truncated.
+Note that this means the command
+.Ic cmd \*(Ltfoo \*(Gtfoo
+will open
+.Ar foo
+for reading and then truncate it when it opens it for writing, before
+.Ar cmd
+gets a chance to actually read
+.Ar foo .
+.It \*(Gt\*(Ba Ar file
+Same as
+.Ic \*(Gt ,
+except the file is truncated, even if the
+.Ic noclobber
+option is set.
+.It \*(Gt\*(Gt Ar file
+Same as
+.Ic \*(Gt ,
+except if
+.Ar file
+exists it is appended to instead of being truncated.
+Also, the file is opened
+in append mode, so writes always go to the end of the file (see
+.Xr open 2 ) .
+.It \*(Lt Ar file
+Standard input is redirected from
+.Ar file ,
+which is opened for reading.
+.It \*(Lt\*(Gt Ar file
+Same as
+.Ic \*(Lt ,
+except the file is opened for reading and writing.
+.It \*(Lt\*(Lt Ar marker
+After reading the command line containing this kind of redirection (called a
+.Dq here document ) ,
+the shell copies lines from the command source into a temporary file until a
+line matching
+.Ar marker
+is read.
+When the command is executed, standard input is redirected from the
+temporary file.
+If
+.Ar marker
+contains no quoted characters, the contents of the temporary file are processed
+as if enclosed in double quotes each time the command is executed, so
+parameter, command, and arithmetic substitutions are performed, along with
+backslash
+.Pq Sq \e
+escapes for
+.Ql $ ,
+.Ql \` ,
+.Ql \e ,
+and
+.Ql \enewline ,
+but not for
+.Ql \&" .
+If multiple here documents are used on the same command line, they are saved in
+order.
+.Pp
+If no
+.Ar marker
+is given, the here document ends at the next
+.Ic \*(Lt\*(Lt
+and substitution will be performed.
+If
+.Ar marker
+is only a set of either single
+.Dq \*(aq\*(aq
+or double
+.Sq \&""
+quotes with nothing in between, the here document ends at the next empty line
+and substitution will not be performed.
+.It \*(Lt\*(Lt\- Ar marker
+Same as
+.Ic \*(Lt\*(Lt ,
+except leading tabs are stripped from lines in the here document.
+.It \*(Lt\*(Lt\*(Lt Ar word
+Same as
+.Ic \*(Lt\*(Lt ,
+except that
+.Ar word
+.Em is
+the here document.
+This is called a here string.
+.It \*(Lt& Ar fd
+Standard input is duplicated from file descriptor
+.Ar fd .
+.Ar fd
+can be a number, indicating the number of an existing file descriptor;
+the letter
+.Ql p ,
+indicating the file descriptor associated with the output of the current
+co-process; or the character
+.Ql \- ,
+indicating standard input is to be closed.
+Note that
+.Ar fd
+is limited to a single digit in most shell implementations.
+.It \*(Gt& Ar fd
+Same as
+.Ic \*(Lt& ,
+except the operation is done on standard output.
+.It &\*(Gt Ar file
+Same as
+.Ic \*(Gt Ar file 2\*(Gt&1 .
+This is a GNU
+.Nm bash
+extension supported by
+.Nm
+which also supports the preceding explicit fd number, for example,
+.Ic 3&\*(Gt Ar file
+is the same as
+.Ic 3\*(Gt Ar file 2\*(Gt&3
+in
+.Nm
+but a syntax error in GNU
+.Nm bash .
+Setting the
+.Fl o Ar posix
+or
+.Fl o Ar sh
+shell options disable parsing of this redirection;
+it's a compatibility feature to legacy scripts, to
+not be used when writing new shell code.
+.It Xo
+.No &\*(Gt\*(Ba Ar file ,
+.No &\*(Gt\*(Gt Ar file ,
+.No &\*(Gt& Ar fd
+.Xc
+Same as
+.Ic \*(Gt\*(Ba Ar file ,
+.Ic \*(Gt\*(Gt Ar file ,
+or
+.Ic \*(Gt& Ar fd ,
+followed by
+.Ic 2\*(Gt&1 ,
+as above.
+These are
+.Nm
+extensions.
+.El
+.Pp
+In any of the above redirections, the file descriptor that is redirected
+(i.e. standard input or standard output)
+can be explicitly given by preceding the
+redirection with a number (portably, only a single digit).
+Parameter, command, and arithmetic
+substitutions, tilde substitutions, and (if the shell is interactive)
+file name generation are all performed on the
+.Ar file ,
+.Ar marker ,
+and
+.Ar fd
+arguments of redirections.
+Note, however, that the results of any file name
+generation are only used if a single file is matched; if multiple files match,
+the word with the expanded file name generation characters is used.
+Note
+that in restricted shells, redirections which can create files cannot be used.
+.Pp
+For simple-commands, redirections may appear anywhere in the command; for
+compound-commands
+.Po
+.Ic if
+statements, etc.
+.Pc ,
+any redirections must appear at the end.
+Redirections are processed after
+pipelines are created and in the order they are given, so the following
+will print an error with a line number prepended to it:
+.Pp
+.D1 $ cat /foo/bar 2\*(Gt&1 \*(Gt/dev/null \*(Ba pr \-n \-t
+.Pp
+File descriptors created by input/output redirections are private to the
+Korn shell, but passed to sub-processes if
+.Fl o Ic posix
+or
+.Fl o Ic sh
+is set.
+.Ss Arithmetic expressions
+Integer arithmetic expressions can be used with the
+.Ic let
+command, inside $((..)) expressions, inside array references (e.g.\&
+.Ar name Ns Bq Ar expr ) ,
+as numeric arguments to the
+.Ic test
+command, and as the value of an assignment to an integer parameter.
+.Pp
+Expressions are calculated using signed arithmetic and the
+.Vt mksh_ari_t
+type (a 32-bit signed integer), unless they begin with a sole
+.Sq #
+character, in which case they use
+.Vt mksh_uari_t
+.Po a 32-bit unsigned integer Pc .
+.Pp
+Expressions may contain alpha-numeric parameter identifiers, array references,
+and integer constants and may be combined with the following C operators
+(listed and grouped in increasing order of precedence):
+.Pp
+Unary operators:
+.Bd -literal -offset indent
++ \- ! \*(TI ++ \-\-
+.Ed
+.Pp
+Binary operators:
+.Bd -literal -offset indent
+,
+= += \-= *= /= %= \*(Lt\*(Lt\*(Lt= \*(Gt\*(Gt\*(Gt= \*(Lt\*(Lt= \*(Gt\*(Gt= &= \*(ha= \*(Ba=
+\*(Ba\*(Ba
+&&
+\*(Ba
+\*(ha
+&
+== !=
+\*(Lt \*(Lt= \*(Gt \*(Gt=
+\*(Lt\*(Lt\*(Lt \*(Gt\*(Gt\*(Gt \*(Lt\*(Lt \*(Gt\*(Gt
++ \-
+* / %
+.Ed
+.Pp
+Ternary operators:
+.Bd -literal -offset indent
+?: (precedence is immediately higher than assignment)
+.Ed
+.Pp
+Grouping operators:
+.Bd -literal -offset indent
+( )
+.Ed
+.Pp
+Integer constants and expressions are calculated using an exactly 32-bit
+wide, signed or unsigned, type with silent wraparound on integer overflow.
+Integer constants may be specified with arbitrary bases using the notation
+.Ar base Ns # Ns Ar number ,
+where
+.Ar base
+is a decimal integer specifying the base, and
+.Ar number
+is a number in the specified base.
+Additionally, base-16 integers may be specified by prefixing them with
+.Sq 0x
+.Pq case-insensitive
+in all forms of arithmetic expressions, except as numeric arguments to the
+.Ic test
+built-in command.
+Prefixing numbers with a sole digit zero
+.Pq Sq 0
+leads to the shell interpreting it as base-8 (octal) integer in
+.Ic posix
+mode
+.Em only ;
+historically, (pd)ksh has never done so either anyway,
+and it's unsafe to do that, but POSIX demands it nowadays.
+As a special
+.Nm mksh
+extension, numbers to the base of one are treated as either (8-bit
+transparent) ASCII or Unicode codepoints, depending on the shell's
+.Ic utf8\-mode
+flag (current setting).
+The
+.At
+.Nm ksh93
+syntax of
+.Dq \*(aqx\*(aq
+instead of
+.Dq 1#x
+is also supported.
+Note that NUL bytes (integral value of zero) cannot be used.
+An unset or empty parameter evaluates to 0 in integer context.
+In Unicode mode, raw octets are mapped into the range EF80..EFFF as in
+OPTU-8, which is in the PUA and has been assigned by CSUR for this use.
+If more than one octet in ASCII mode, or a sequence of more than one
+octet not forming a valid and minimal CESU-8 sequence is passed, the
+behaviour is undefined (usually, the shell aborts with a parse error,
+but rarely, it succeeds, e.g. on the sequence C2 20).
+That's why you should always use ASCII mode unless you know that the
+input is well-formed UTF-8 in the range of 0000..FFFD.
+.Pp
+The operators are evaluated as follows:
+.Bl -tag -width Ds -offset indent
+.It unary +
+Result is the argument (included for completeness).
+.It unary \-
+Negation.
+.It \&!
+Logical NOT;
+the result is 1 if argument is zero, 0 if not.
+.It \*(TI
+Arithmetic (bit-wise) NOT.
+.It ++
+Increment; must be applied to a parameter (not a literal or other expression).
+The parameter is incremented by 1.
+When used as a prefix operator, the result
+is the incremented value of the parameter; when used as a postfix operator, the
+result is the original value of the parameter.
+.It \-\-
+Similar to
+.Ic ++ ,
+except the parameter is decremented by 1.
+.It \&,
+Separates two arithmetic expressions; the left-hand side is evaluated first,
+then the right.
+The result is the value of the expression on the right-hand side.
+.It =
+Assignment; the variable on the left is set to the value on the right.
+.It Xo
+.No += \-= *= /= %= \*(Lt\*(Lt\*(Lt= \*(Gt\*(Gt\*(Gt=
+.No \*(Lt\*(Lt= \*(Gt\*(Gt= &= \*(ha= \*(Ba=
+.Xc
+Assignment operators.
+.Sm off
+.Ao Ar var Ac Xo
+.Aq Ar op
+.No = Aq Ar expr
+.Xc
+.Sm on
+is the same as
+.Sm off
+.Ao Ar var Ac Xo
+.No = Aq Ar var
+.Aq Ar op
+.Aq Ar expr ,
+.Xc
+.Sm on
+with any operator precedence in
+.Aq Ar expr
+preserved.
+For example,
+.Dq var1 *= 5 + 3
+is the same as specifying
+.Dq var1 = var1 * (5 + 3) .
+.It \*(Ba\*(Ba
+Logical OR;
+the result is 1 if either argument is non-zero, 0 if not.
+The right argument is evaluated only if the left argument is zero.
+.It &&
+Logical AND;
+the result is 1 if both arguments are non-zero, 0 if not.
+The right argument is evaluated only if the left argument is non-zero.
+.It \*(Ba
+Arithmetic (bit-wise) OR.
+.It \*(ha
+Arithmetic (bit-wise) XOR
+(exclusive-OR).
+.It &
+Arithmetic (bit-wise) AND.
+.It ==
+Equal; the result is 1 if both arguments are equal, 0 if not.
+.It !=
+Not equal; the result is 0 if both arguments are equal, 1 if not.
+.It \*(Lt
+Less than; the result is 1 if the left argument is less than the right, 0 if
+not.
+.It \*(Lt= \*(Gt \*(Gt=
+Less than or equal, greater than or equal, greater than.
+See
+.Ic \*(Lt .
+.It \*(Lt\*(Lt\*(Lt \*(Gt\*(Gt\*(Gt
+Rotate left (right); the result is similar to shift (see
+.Ic \*(Lt\*(Lt )
+except that the bits shifted out at one end are shifted in
+at the other end, instead of zero or sign bits.
+.It \*(Lt\*(Lt \*(Gt\*(Gt
+Shift left (right); the result is the left argument with its bits shifted left
+(right) by the amount given in the right argument.
+.It + \- * /
+Addition, subtraction, multiplication, and division.
+.It %
+Remainder; the result is the remainder of the division of the left argument by
+the right.
+.It Xo
+.Sm off
+.Aq Ar arg1 ?
+.Aq Ar arg2 :
+.Aq Ar arg3
+.Sm on
+.Xc
+If
+.Aq Ar arg1
+is non-zero, the result is
+.Aq Ar arg2 ;
+otherwise the result is
+.Aq Ar arg3 .
+The non-result argument is not evaluated.
+.El
+.Ss Co-processes
+A co-process (which is a pipeline created with the
+.Sq \*(Ba&
+operator) is an asynchronous process that the shell can both write to (using
+.Ic print \-p )
+and read from (using
+.Ic read \-p ) .
+The input and output of the co-process can also be manipulated using
+.Ic \*(Gt&p
+and
+.Ic \*(Lt&p
+redirections, respectively.
+Once a co-process has been started, another can't
+be started until the co-process exits, or until the co-process's input has been
+redirected using an
+.Ic exec Ar n Ns Ic \*(Gt&p
+redirection.
+If a co-process's input is redirected in this way, the next
+co-process to be started will share the output with the first co-process,
+unless the output of the initial co-process has been redirected using an
+.Ic exec Ar n Ns Ic \*(Lt&p
+redirection.
+.Pp
+Some notes concerning co-processes:
+.Bl -bullet
+.It
+The only way to close the co-process's input (so the co-process reads an
+end-of-file) is to redirect the input to a numbered file descriptor and then
+close that file descriptor:
+.Ic exec 3\*(Gt&p; exec 3\*(Gt&\-
+.It
+In order for co-processes to share a common output, the shell must keep the
+write portion of the output pipe open.
+This means that end-of-file will not be
+detected until all co-processes sharing the co-process's output have exited
+(when they all exit, the shell closes its copy of the pipe).
+This can be
+avoided by redirecting the output to a numbered file descriptor (as this also
+causes the shell to close its copy).
+Note that this behaviour is slightly
+different from the original Korn shell which closes its copy of the write
+portion of the co-process output when the most recently started co-process
+(instead of when all sharing co-processes) exits.
+.It
+.Ic print \-p
+will ignore
+.Dv SIGPIPE
+signals during writes if the signal is not being trapped or ignored; the same
+is true if the co-process input has been duplicated to another file descriptor
+and
+.Ic print \-u Ns Ar n
+is used.
+.El
+.Ss Functions
+Functions are defined using either Korn shell
+.Ic function Ar function-name
+syntax or the Bourne/POSIX shell
+.Ar function-name Ns \&()
+syntax (see below for the difference between the two forms).
+Functions are like
+.Li .\(hyscripts
+(i.e. scripts sourced using the
+.Sq \&.
+built-in)
+in that they are executed in the current environment.
+However, unlike
+.Li .\(hyscripts ,
+shell arguments (i.e. positional parameters $1, $2, etc.)\&
+are never visible inside them.
+When the shell is determining the location of a command, functions
+are searched after special built-in commands, before builtins and the
+.Ev PATH
+is searched.
+.Pp
+An existing function may be deleted using
+.Ic unset Fl f Ar function-name .
+A list of functions can be obtained using
+.Ic typeset +f
+and the function definitions can be listed using
+.Ic typeset \-f .
+The
+.Ic autoload
+command (which is an alias for
+.Ic typeset \-fu )
+may be used to create undefined functions: when an undefined function is
+executed, the shell searches the path specified in the
+.Ev FPATH
+parameter for a file with the same name as the function which, if found, is
+read and executed.
+If after executing the file the named function is found to
+be defined, the function is executed; otherwise, the normal command search is
+continued (i.e. the shell searches the regular built-in command table and
+.Ev PATH ) .
+Note that if a command is not found using
+.Ev PATH ,
+an attempt is made to autoload a function using
+.Ev FPATH
+(this is an undocumented feature of the original Korn shell).
+.Pp
+Functions can have two attributes,
+.Dq trace
+and
+.Dq export ,
+which can be set with
+.Ic typeset \-ft
+and
+.Ic typeset \-fx ,
+respectively.
+When a traced function is executed, the shell's
+.Ic xtrace
+option is turned on for the function's duration.
+The
+.Dq export
+attribute of functions is currently not used.
+In the original Korn shell,
+exported functions are visible to shell scripts that are executed.
+.Pp
+Since functions are executed in the current shell environment, parameter
+assignments made inside functions are visible after the function completes.
+If this is not the desired effect, the
+.Ic typeset
+command can be used inside a function to create a local parameter.
+Note that
+.At
+.Nm ksh93
+uses static scoping (one global scope, one local scope per function)
+and allows local variables only on Korn style functions, whereas
+.Nm mksh
+uses dynamic scoping (nested scopes of varying locality).
+Note that special parameters (e.g.\&
+.Ic \&$$ , $! )
+can't be scoped in this way.
+.Pp
+The exit status of a function is that of the last command executed in the
+function.
+A function can be made to finish immediately using the
+.Ic return
+command; this may also be used to explicitly specify the exit status.
+.Pp
+Functions defined with the
+.Ic function
+reserved word are treated differently in the following ways from functions
+defined with the
+.Ic \&()
+notation:
+.Bl -bullet
+.It
+The $0 parameter is set to the name of the function
+(Bourne-style functions leave $0 untouched).
+.It
+Parameter assignments preceding function calls are not kept in the shell
+environment (executing Bourne-style functions will keep assignments).
+.It
+.Ev OPTIND
+is saved/reset and restored on entry and exit from the function so
+.Ic getopts
+can be used properly both inside and outside the function (Bourne-style
+functions leave
+.Ev OPTIND
+untouched, so using
+.Ic getopts
+inside a function interferes with using
+.Ic getopts
+outside the function).
+.It
+Bourne-style function definitions take precedence over alias dereferences
+and remove alias definitions upon encounter, while aliases take precedence
+over Korn-style functions.
+.El
+.Pp
+In the future, the following differences may also be added:
+.Bl -bullet
+.It
+A separate trap/signal environment will be used during the execution of
+functions.
+This will mean that traps set inside a function will not affect the
+shell's traps and signals that are not ignored in the shell (but may be
+trapped) will have their default effect in a function.
+.It
+The EXIT trap, if set in a function, will be executed after the function
+returns.
+.El
+.Ss Command execution
+After evaluation of command-line arguments, redirections, and parameter
+assignments, the type of command is determined: a special built-in command,
+a function, a normal builtin, or the name of a file to execute found using the
+.Ev PATH
+parameter.
+The checks are made in the above order.
+Special built-in commands differ from other commands in that the
+.Ev PATH
+parameter is not used to find them, an error during their execution can
+cause a non-interactive shell to exit, and parameter assignments that are
+specified before the command are kept after the command completes.
+Regular built-in commands are different only in that the
+.Ev PATH
+parameter is not used to find them.
+.Pp
+The original
+.Nm ksh
+and POSIX differ somewhat in which commands are considered
+special or regular.
+.Pp
+POSIX special built-in utilities:
+.Pp
+.Ic \&. , \&: , break , continue ,
+.Ic eval , exec , exit , export ,
+.Ic readonly , return , set , shift ,
+.Ic times , trap , unset
+.Pp
+Additional
+.Nm
+commands keeping assignments:
+.Pp
+.Ic builtin , global , typeset , wait
+.Pp
+Builtins that are not special:
+.Pp
+.Ic [ , alias , bg , bind ,
+.Ic cat , cd , command , echo ,
+.Ic false , fc , fg , getopts ,
+.Ic jobs , kill , let , mknod ,
+.Ic print , pwd , read , realpath ,
+.Ic rename , sleep , suspend , test ,
+.Ic true , ulimit , umask , unalias ,
+.Ic whence
+.Pp
+Once the type of command has been determined, any command-line parameter
+assignments are performed and exported for the duration of the command.
+.Pp
+The following describes the special and regular built-in commands:
+.Pp
+.Bl -tag -width false -compact
+.It Ic \&. Ar file Op Ar arg ...
+This is called the
+.Dq dot
+command.
+Execute the commands in
+.Ar file
+in the current environment.
+The file is searched for in the directories of
+.Ev PATH .
+If arguments are given, the positional parameters may be used to access them
+while
+.Ar file
+is being executed.
+If no arguments are given, the positional parameters are
+those of the environment the command is used in.
+.Pp
+.It Ic \&: Op Ar ...
+The null command.
+Exit status is set to zero.
+.Pp
+.It Ic \&[ Ar expression Ic \&]
+See
+.Ic test .
+.Pp
+.It Xo Ic alias
+.Oo Fl d \*(Ba t Oo Fl r Oc \*(Ba
+.Cm +\-x Oc
+.Op Fl p
+.Op Cm +
+.Oo Ar name
+.Op Ns = Ns Ar value
+.Ar ... Oc
+.Xc
+Without arguments,
+.Ic alias
+lists all aliases.
+For any name without a value, the existing alias is listed.
+Any name with a value defines an alias (see
+.Sx Aliases
+above).
+.Pp
+When listing aliases, one of two formats is used.
+Normally, aliases are listed as
+.Ar name Ns = Ns Ar value ,
+where
+.Ar value
+is quoted.
+If options were preceded with
+.Ql + ,
+or a lone
+.Ql +
+is given on the command line, only
+.Ar name
+is printed.
+.Pp
+The
+.Fl d
+option causes directory aliases which are used in tilde expansion to be
+listed or set (see
+.Sx Tilde expansion
+above).
+.Pp
+If the
+.Fl p
+option is used, each alias is prefixed with the string
+.Dq alias\ \& .
+.Pp
+The
+.Fl t
+option indicates that tracked aliases are to be listed/set (values specified on
+the command line are ignored for tracked aliases).
+The
+.Fl r
+option indicates that all tracked aliases are to be reset.
+.Pp
+The
+.Fl x
+option sets
+.Pq Ic +x No clears
+the export attribute of an alias, or, if no names are given, lists the aliases
+with the export attribute (exporting an alias has no effect).
+.Pp
+.It Ic bg Op Ar job ...
+Resume the specified stopped job(s) in the background.
+If no jobs are specified,
+.Ic %+
+is assumed.
+See
+.Sx Job control
+below for more information.
+.Pp
+.It Ic bind Op Fl l
+The current bindings are listed.
+If the
+.Fl l
+flag is given,
+.Ic bind
+instead lists the names of the functions to which keys may be bound.
+See
+.Sx Emacs editing mode
+for more information.
+.Pp
+.It Xo Ic bind Op Fl m
+.Ar string Ns = Ns Op Ar substitute
+.Ar ...
+.Xc
+.It Xo Ic bind
+.Ar string Ns = Ns Op Ar editing-command
+.Ar ...
+.Xc
+The specified editing command is bound to the given
+.Ar string ,
+which should consist of a control character
+optionally preceded by one of the two prefix characters
+and optionally succeded by a tilde character.
+Future input of the
+.Ar string
+will cause the editing command to be immediately invoked.
+If the
+.Fl m
+flag is given, the specified input
+.Ar string
+will afterwards be immediately replaced by the given
+.Ar substitute
+string which may contain editing commands but not other macros.
+If a tilde postfix is given, a tilde trailing the one or
+two prefices and the control character is ignored, any
+other trailing character will be processed afterwards.
+.Pp
+Control characters may be written using caret notation
+i.e. \*(haX represents Ctrl-X.
+Note that although only two prefix characters (usually ESC and \*(haX)
+are supported, some multi-character sequences can be supported.
+.Pp
+The following default bindings show how the arrow keys, the home, end and
+delete key on a BSD wsvt25, xterm\-xfree86 or GNU screen terminal are bound
+(of course some escape sequences won't work out quite this nicely):
+.Bd -literal -offset indent
+bind \*(aq\*(haX\*(aq=prefix\-2
+bind \*(aq\*(ha[[\*(aq=prefix\-2
+bind \*(aq\*(haXA\*(aq=up\-history
+bind \*(aq\*(haXB\*(aq=down\-history
+bind \*(aq\*(haXC\*(aq=forward\-char
+bind \*(aq\*(haXD\*(aq=backward\-char
+bind \*(aq\*(haX1\*(TI\*(aq=beginning\-of\-line
+bind \*(aq\*(haX7\*(TI\*(aq=beginning\-of\-line
+bind \*(aq\*(haXH\*(aq=beginning\-of\-line
+bind \*(aq\*(haX4\*(TI\*(aq=end\-of\-line
+bind \*(aq\*(haX8\*(TI\*(aq=end\-of\-line
+bind \*(aq\*(haXF\*(aq=end\-of\-line
+bind \*(aq\*(haX3\*(TI\*(aq=delete\-char\-forward
+.Ed
+.Pp
+.It Ic break Op Ar level
+Exit the
+.Ar level Ns th
+inner-most
+.Ic for ,
+.Ic select ,
+.Ic until ,
+or
+.Ic while
+loop.
+.Ar level
+defaults to 1.
+.Pp
+.It Xo
+.Ic builtin
+.Op Fl \-
+.Ar command Op Ar arg ...
+.Xc
+Execute the built-in command
+.Ar command .
+.Pp
+.It Xo
+.Ic cat
+.Op Fl u
+.Op Ar
+.Xc
+Read files sequentially, in command line order, and write them to
+standard output.
+If a
+.Ar file
+is a single dash
+.Pq Sq -
+or absent, read from standard input.
+Unless compiled with
+.Dv MKSH_NO_EXTERNAL_CAT ,
+if any options are given, an external
+.Xr cat 1
+utility is invoked instead if called from the shell.
+For direct builtin calls, the
+.Tn POSIX
+.Fl u
+option is supported as a no-op.
+.Pp
+.It Xo
+.Ic cd
+.Op Fl L
+.Op Ar dir
+.Xc
+.It Xo
+.Ic cd
+.Fl P Op Fl e
+.Op Ar dir
+.Xc
+.It Xo
+.Ic chdir
+.Op Fl eLP
+.Op Ar dir
+.Xc
+Set the working directory to
+.Ar dir .
+If the parameter
+.Ev CDPATH
+is set, it lists the search path for the directory containing
+.Ar dir .
+A
+.Dv NULL
+path means the current directory.
+If
+.Ar dir
+is found in any component of the
+.Ev CDPATH
+search path other than the
+.Dv NULL
+path, the name of the new working directory will be written to standard output.
+If
+.Ar dir
+is missing, the home directory
+.Ev HOME
+is used.
+If
+.Ar dir
+is
+.Ql \- ,
+the previous working directory is used (see the
+.Ev OLDPWD
+parameter).
+.Pp
+If the
+.Fl L
+option (logical path) is used or if the
+.Ic physical
+option isn't set (see the
+.Ic set
+command below), references to
+.Sq ..
+in
+.Ar dir
+are relative to the path used to get to the directory.
+If the
+.Fl P
+option (physical path) is used or if the
+.Ic physical
+option is set,
+.Sq ..
+is relative to the filesystem directory tree.
+The
+.Ev PWD
+and
+.Ev OLDPWD
+parameters are updated to reflect the current and old working directory,
+respectively.
+If the
+.Fl e
+option is set for physical filesystem traversal, and
+.Ev PWD
+could not be set, the exit code is 1; greater than 1 if an
+error occurred, 0 otherwise.
+.Pp
+.It Xo
+.Ic cd
+.Op Fl eLP
+.Ar old new
+.Xc
+.It Xo
+.Ic chdir
+.Op Fl eLP
+.Ar old new
+.Xc
+The string
+.Ar new
+is substituted for
+.Ar old
+in the current directory, and the shell attempts to change to the new
+directory.
+.Pp
+.It Xo
+.Ic command
+.Op Fl pVv
+.Ar cmd
+.Op Ar arg ...
+.Xc
+If neither the
+.Fl v
+nor
+.Fl V
+option is given,
+.Ar cmd
+is executed exactly as if
+.Ic command
+had not been specified, with two exceptions:
+firstly,
+.Ar cmd
+cannot be a shell function;
+and secondly, special built-in commands lose their specialness
+(i.e. redirection and utility errors do not cause the shell to
+exit, and command assignments are not permanent).
+.Pp
+If the
+.Fl p
+option is given, a default search path is used instead of the current value of
+.Ev PATH ,
+the actual value of which is system dependent.
+.Pp
+If the
+.Fl v
+option is given, instead of executing
+.Ar cmd ,
+information about what would be executed is given (and the same is done for
+.Ar arg ... ) .
+For special and regular built-in commands and functions, their names are simply
+printed; for aliases, a command that defines them is printed; and for commands
+found by searching the
+.Ev PATH
+parameter, the full path of the command is printed.
+If no command is found
+(i.e. the path search fails), nothing is printed and
+.Ic command
+exits with a non-zero status.
+The
+.Fl V
+option is like the
+.Fl v
+option, except it is more verbose.
+.Pp
+.It Ic continue Op Ar level
+Jumps to the beginning of the
+.Ar level Ns th
+inner-most
+.Ic for ,
+.Ic select ,
+.Ic until ,
+or
+.Ic while
+loop.
+.Ar level
+defaults to 1.
+.Pp
+.It Xo
+.Ic echo
+.Op Fl Een
+.Op Ar arg ...
+.Xc
+.Em Warning:
+this utility is not portable; use the Korn shell builtin
+.Ic print
+instead.
+.Pp
+Prints its arguments (separated by spaces) followed by a newline, to the
+standard output.
+The newline is suppressed if any of the arguments contain the
+backslash sequence
+.Ql \ec .
+See the
+.Ic print
+command below for a list of other backslash sequences that are recognised.
+.Pp
+The options are provided for compatibility with
+.Bx
+shell scripts.
+The
+.Fl n
+option suppresses the trailing newline,
+.Fl e
+enables backslash interpretation (a no-op, since this is normally done), and
+.Fl E
+suppresses backslash interpretation.
+.Pp
+If the
+.Ic posix
+or
+.Ic sh
+option is set or this is a direct builtin call, only the first argument
+is treated as an option, and only if it is exactly
+.Dq Fl n .
+Backslash interpretation is disabled.
+.Pp
+.It Ic eval Ar command ...
+The arguments are concatenated (with spaces between them) to form a single
+string which the shell then parses and executes in the current environment.
+.Pp
+.It Xo
+.Ic exec
+.Op Ar command Op Ar arg ...
+.Xc
+The command is executed without forking, replacing the shell process.
+.Pp
+If no command is given except for I/O redirection, the I/O redirection is
+permanent and the shell is
+not replaced.
+Any file descriptors greater than 2 which are opened or
+.Xr dup 2 Ns 'd
+in this way are not made available to other executed commands (i.e. commands
+that are not built-in to the shell).
+Note that the Bourne shell differs here;
+it does pass these file descriptors on.
+.Pp
+.It Ic exit Op Ar status
+The shell exits with the specified exit status.
+If
+.Ar status
+is not specified, the exit status is the current value of the
+.Ic $?\&
+parameter.
+.Pp
+.It Xo
+.Ic export
+.Op Fl p
+.Op Ar parameter Ns Op = Ns Ar value
+.Xc
+Sets the export attribute of the named parameters.
+Exported parameters are passed in the environment to executed commands.
+If values are specified, the named parameters are also assigned.
+.Pp
+If no parameters are specified, all parameters with the export attribute
+set are printed one per line; either their names, or, if a
+.Ql \-
+with no option letter is specified, name=value pairs, or, with
+.Fl p ,
+.Ic export
+commands suitable for re-entry.
+.Pp
+.It Ic false
+A command that exits with a non-zero status.
+.Pp
+.It Xo
+.Ic fc
+.Oo Fl e Ar editor \*(Ba
+.Fl l Op Fl n Oc
+.Op Fl r
+.Op Ar first Op Ar last
+.Xc
+.Ar first
+and
+.Ar last
+select commands from the history.
+Commands can be selected by history number
+(negative numbers go backwards from the current, most recent, line)
+or a string specifying the most recent command starting with that string.
+The
+.Fl l
+option lists the command on standard output, and
+.Fl n
+inhibits the default command numbers.
+The
+.Fl r
+option reverses the order of the list.
+Without
+.Fl l ,
+the selected commands are edited by the editor specified with the
+.Fl e
+option, or if no
+.Fl e
+is specified, the editor specified by the
+.Ev FCEDIT
+parameter (if this parameter is not set,
+.Pa /bin/ed
+is used), and then executed by the shell.
+.Pp
+.It Xo
+.Ic fc
+.Cm \-e \- \*(Ba Fl s
+.Op Fl g
+.Op Ar old Ns = Ns Ar new
+.Op Ar prefix
+.Xc
+Re-execute the selected command (the previous command by default) after
+performing the optional substitution of
+.Ar old
+with
+.Ar new .
+If
+.Fl g
+is specified, all occurrences of
+.Ar old
+are replaced with
+.Ar new .
+The meaning of
+.Cm \-e \-
+and
+.Fl s
+is identical: re-execute the selected command without invoking an editor.
+This command is usually accessed with the predefined:
+.Ic alias r=\*(aqfc \-e \-\*(aq
+.Pp
+.It Ic fg Op Ar job ...
+Resume the specified job(s) in the foreground.
+If no jobs are specified,
+.Ic %+
+is assumed.
+See
+.Sx Job control
+below for more information.
+.Pp
+.It Xo
+.Ic getopts
+.Ar optstring name
+.Op Ar arg ...
+.Xc
+Used by shell procedures to parse the specified arguments (or positional
+parameters, if no arguments are given) and to check for legal options.
+.Ar optstring
+contains the option letters that
+.Ic getopts
+is to recognise.
+If a letter is followed by a colon, the option is expected to
+have an argument.
+Options that do not take arguments may be grouped in a single argument.
+If an option takes an argument and the option character is not the
+last character of the argument it is found in, the remainder of the argument is
+taken to be the option's argument; otherwise, the next argument is the option's
+argument.
+.Pp
+Each time
+.Ic getopts
+is invoked, it places the next option in the shell parameter
+.Ar name
+and the index of the argument to be processed by the next call to
+.Ic getopts
+in the shell parameter
+.Ev OPTIND .
+If the option was introduced with a
+.Ql + ,
+the option placed in
+.Ar name
+is prefixed with a
+.Ql + .
+When an option requires an argument,
+.Ic getopts
+places it in the shell parameter
+.Ev OPTARG .
+.Pp
+When an illegal option or a missing option argument is encountered, a question
+mark or a colon is placed in
+.Ar name
+(indicating an illegal option or missing argument, respectively) and
+.Ev OPTARG
+is set to the option character that caused the problem.
+Furthermore, if
+.Ar optstring
+does not begin with a colon, a question mark is placed in
+.Ar name ,
+.Ev OPTARG
+is unset, and an error message is printed to standard error.
+.Pp
+When the end of the options is encountered,
+.Ic getopts
+exits with a non-zero exit status.
+Options end at the first (non-option
+argument) argument that does not start with a
+.Ql \- ,
+or when a
+.Ql \-\-
+argument is encountered.
+.Pp
+Option parsing can be reset by setting
+.Ev OPTIND
+to 1 (this is done automatically whenever the shell or a shell procedure is
+invoked).
+.Pp
+Warning: Changing the value of the shell parameter
+.Ev OPTIND
+to a value other than 1, or parsing different sets of arguments without
+resetting
+.Ev OPTIND ,
+may lead to unexpected results.
+.Pp
+.It global Ar ...
+See
+.Ic typeset .
+.Pp
+.It Xo
+.Ic hash
+.Op Fl r
+.Op Ar name ...
+.Xc
+Without arguments, any hashed executable command pathnames are listed.
+The
+.Fl r
+option causes all hashed commands to be removed from the hash table.
+Each
+.Ar name
+is searched as if it were a command name and added to the hash table if it is
+an executable command.
+.Pp
+.It Xo
+.Ic jobs
+.Op Fl lnp
+.Op Ar job ...
+.Xc
+Display information about the specified job(s); if no jobs are specified, all
+jobs are displayed.
+The
+.Fl n
+option causes information to be displayed only for jobs that have changed
+state since the last notification.
+If the
+.Fl l
+option is used, the process ID of each process in a job is also listed.
+The
+.Fl p
+option causes only the process group of each job to be printed.
+See
+.Sx Job control
+below for the format of
+.Ar job
+and the displayed job.
+.Pp
+.It Xo
+.Ic kill
+.Oo Fl s Ar signame \*(Ba
+.No \- Ns Ar signum \*(Ba
+.No \- Ns Ar signame Oc
+.No { Ar job \*(Ba pid \*(Ba pgrp No }
+.Ar ...
+.Xc
+Send the specified signal to the specified jobs, process IDs, or process
+groups.
+If no signal is specified, the
+.Dv TERM
+signal is sent.
+If a job is specified, the signal is sent to the job's process group.
+See
+.Sx Job control
+below for the format of
+.Ar job .
+.Pp
+.It Xo
+.Ic kill
+.Fl l
+.Op Ar exit-status ...
+.Xc
+Print the signal name corresponding to
+.Ar exit-status .
+If no arguments are specified, a list of all the signals, their numbers, and
+a short description of them are printed.
+.Pp
+.It Ic let Op Ar expression ...
+Each expression is evaluated (see
+.Sx Arithmetic expressions
+above).
+If all expressions are successfully evaluated, the exit status is 0 (1)
+if the last expression evaluated to non-zero (zero).
+If an error occurs during
+the parsing or evaluation of an expression, the exit status is greater than 1.
+Since expressions may need to be quoted,
+.No \&(( Ar expr No ))
+is syntactic sugar for
+.No let \&" Ns Ar expr Ns \&" .
+.Pp
+.It Ic let]
+Internally used alias for
+.Ic let .
+.Pp
+.It Xo
+.Ic mknod
+.Op Fl m Ar mode
+.Ar name
+.Cm b\*(Bac
+.Ar major minor
+.Xc
+.It Xo
+.Ic mknod
+.Op Fl m Ar mode
+.Ar name
+.Cm p
+.Xc
+Create a device special file.
+The file type may be
+.Cm b
+(block type device),
+.Cm c
+(character type device),
+or
+.Cm p
+.Pq named pipe , Tn FIFO .
+The file created may be modified according to its
+.Ar mode
+(via the
+.Fl m
+option),
+.Ar major
+(major device number),
+and
+.Ar minor
+(minor device number).
+.Pp
+See
+.Xr mknod 8
+for further information.
+.Pp
+.It Xo
+.Ic print
+.Oo Fl nprsu Ns Oo Ar n Oc \*(Ba
+.Fl R Op Fl en Oc
+.Op Ar argument ...
+.Xc
+.Ic print
+prints its arguments on the standard output, separated by spaces and
+terminated with a newline.
+The
+.Fl n
+option suppresses the newline.
+By default, certain C escapes are translated.
+These include these mentioned in
+.Sx Backslash expansion
+above, as well as
+.Ql \ec ,
+which is equivalent to using the
+.Fl n
+option.
+Backslash expansion may be inhibited with the
+.Fl r
+option.
+The
+.Fl s
+option prints to the history file instead of standard output; the
+.Fl u
+option prints to file descriptor
+.Ar n
+.Po
+.Ar n
+defaults to 1 if omitted
+.Pc ;
+and the
+.Fl p
+option prints to the co-process (see
+.Sx Co-processes
+above).
+.Pp
+The
+.Fl R
+option is used to emulate, to some degree, the
+.Bx
+.Xr echo 1
+command which does not process
+.Ql \e
+sequences unless the
+.Fl e
+option is given.
+As above, the
+.Fl n
+option suppresses the trailing newline.
+.Pp
+.It Ic printf Ar format Op Ar arguments ...
+Formatted output.
+Approximately the same as the
+.Xr printf 1 ,
+utility, except it uses the same
+.Sx Backslash expansion
+and I/O code and does hot handle floating point as the rest of
+.Nm mksh .
+This is not normally part of
+.Nm mksh ;
+however, distributors may have added this as builtin as a speed hack.
+Do not use in new code.
+.Pp
+.It Ic pwd Op Fl LP
+Print the present working directory.
+If the
+.Fl L
+option is used or if the
+.Ic physical
+option isn't set (see the
+.Ic set
+command below), the logical path is printed (i.e. the path used to
+.Ic cd
+to the current directory).
+If the
+.Fl P
+option (physical path) is used or if the
+.Ic physical
+option is set, the path determined from the filesystem (by following
+.Sq ..
+directories to the root directory) is printed.
+.Pp
+.It Xo
+.Ic read
+.Op Fl A \*(Ba Fl a
+.Op Fl d Ar x
+.Oo Fl N Ar z \*(Ba
+.Fl n Ar z Oc
+.Oo Fl p \*(Ba
+.Fl u Ns Op Ar n
+.Oc Op Fl t Ar n
+.Op Fl rs
+.Op Ar p ...
+.Xc
+Reads a line of input, separates the input into fields using the
+.Ev IFS
+parameter (see
+.Sx Substitution
+above), and assigns each field to the specified parameters
+.Ar p .
+If no parameters are specified, the
+.Ev REPLY
+parameter is used to store the result.
+With the
+.Fl A
+and
+.Fl a
+options, only no or one parameter is accepted.
+If there are more parameters than fields, the extra parameters are set to
+the empty string or 0; if there are more fields than parameters, the last
+parameter is assigned the remaining fields (including the word separators).
+.Pp
+The options are as follows:
+.Bl -tag -width XuXnX
+.It Fl A
+Store the result into the parameter
+.Ar p
+(or
+.Ev REPLY )
+as array of words.
+.It Fl a
+Store the result without word splitting into the parameter
+.Ar p
+(or
+.Ev REPLY )
+as array of characters (wide characters if the
+.Ic utf8\-mode
+option is enacted, octets otherwise).
+.It Fl d Ar x
+Use the first byte of
+.Ar x ,
+.Dv NUL
+if empty, instead of the ASCII newline character as input line delimiter.
+.It Fl N Ar z
+Instead of reading till end-of-line, read exactly
+.Ar z
+bytes; less if EOF or a timeout occurs.
+.It Fl n Ar z
+Instead of reading till end-of-line, read up to
+.Ar z
+bytes but return as soon as any bytes are read, e.g.\& from a
+slow terminal device, or if EOF or a timeout occurs.
+.It Fl p
+Read from the currently active co-process, see
+.Sx Co-processes
+above for details on this.
+.It Fl u Ns Op Ar n
+Read from the file descriptor
+.Ar n
+(defaults to 0, i.e.\& standard input).
+The argument must immediately follow the option character.
+.It Fl t Ar n
+Interrupt reading after
+.Ar n
+seconds (specified as positive decimal value with an optional fractional part).
+.It Fl r
+Normally, the ASCII backslash character escapes the special
+meaning of the following character and is stripped from the input;
+.Ic read
+does not stop when encountering a backslash-newline sequence and
+does not store that newline in the result.
+This option enables raw mode, in which backslashes are not processed.
+.It Fl s
+The input line is saved to the history.
+.El
+.Pp
+If the input is a terminal, both the
+.Fl N
+and
+.Fl n
+options set it into raw mode;
+they read an entire file if \-1 is passed as
+.Ar z
+argument.
+.Pp
+The first parameter may have a question mark and a string appended to it, in
+which case the string is used as a prompt (printed to standard error before
+any input is read) if the input is a
+.Xr tty 4
+(e.g.\&
+.Ic read nfoo?\*(aqnumber of foos: \*(aq ) .
+.Pp
+If no input is read or a timeout occurred,
+.Ic read
+exits with a non-zero status.
+.Pp
+Another handy set of tricks:
+If
+.Ic read
+is run in a loop such as
+.Ic while read foo; do ...; done
+then leading whitespace will be removed (IFS) and backslashes processed.
+You might want to use
+.Ic while IFS= read \-r foo; do ...; done
+for pristine I/O.
+Similarily, when using the
+.Fl a
+option, use of the
+.Fl r
+option might be prudent; the same applies for:
+.Bd -literal -offset indent
+find . \-type f \-print0 \*(Ba \e
+ while IFS= read \-d \*(aq\*(aq \-r filename; do
+ print \-r \-\- "found \*(Lt${filename#./}\*(Gt"
+done
+.Ed
+.Pp
+The inner loop will be executed in a subshell and variable changes
+cannot be propagated if executed in a pipeline:
+.Bd -literal -offset indent
+bar \*(Ba baz \*(Ba while read foo; do ...; done
+.Ed
+.Pp
+Use co-processes instead:
+.Bd -literal -offset indent
+bar \*(Ba baz \*(Ba&
+while read \-p foo; do ...; done
+exec 3\*(Gt&p; exec 3\*(Gt&\-
+.Ed
+.Pp
+.It Xo
+.Ic readonly
+.Op Fl p
+.Oo Ar parameter
+.Op Ns = Ns Ar value
+.Ar ... Oc
+.Xc
+Sets the read-only attribute of the named parameters.
+If values are given,
+parameters are set to them before setting the attribute.
+Once a parameter is
+made read-only, it cannot be unset and its value cannot be changed.
+.Pp
+If no parameters are specified, the names of all parameters with the read-only
+attribute are printed one per line, unless the
+.Fl p
+option is used, in which case
+.Ic readonly
+commands defining all read-only parameters, including their values, are
+printed.
+.Pp
+.It Xo
+.Ic realpath
+.Op Fl \-
+.Ar name
+.Xc
+Prints the resolved absolute pathname corresponding to
+.Ar name .
+If
+.Ar name
+ends with a slash
+.Pq Sq / ,
+it's also checked for existence and whether it is a directory; otherwise,
+.Ic realpath
+returns 0 if the pathname either exists or can be created immediately,
+i.e. all but the last component exist and are directories.
+.Pp
+.It Xo
+.Ic rename
+.Op Fl \-
+.Ar from to
+.Xc
+Renames the file
+.Ar from
+to
+.Ar to .
+Both must be complete pathnames and on the same device.
+This builtin is intended for emergency situations where
+.Pa /bin/mv
+becomes unusable, and directly calls
+.Xr rename 2 .
+.Pp
+.It Ic return Op Ar status
+Returns from a function or
+.Ic .\&
+script, with exit status
+.Ar status .
+If no
+.Ar status
+is given, the exit status of the last executed command is used.
+If used outside of a function or
+.Ic .\&
+script, it has the same effect as
+.Ic exit .
+Note that
+.Nm
+treats both profile and
+.Ev ENV
+files as
+.Ic .\&
+scripts, while the original Korn shell only treats profiles as
+.Ic .\&
+scripts.
+.Pp
+.It Xo
+.Ic set Op Ic +\-abCefhiklmnprsUuvXx
+.Op Ic +\-o Ar option
+.Op Ic +\-A Ar name
+.Op Fl \-
+.Op Ar arg ...
+.Xc
+The
+.Ic set
+command can be used to set
+.Pq Ic \-
+or clear
+.Pq Ic +
+shell options, set the positional parameters, or set an array parameter.
+Options can be changed using the
+.Cm +\-o Ar option
+syntax, where
+.Ar option
+is the long name of an option, or using the
+.Cm +\- Ns Ar letter
+syntax, where
+.Ar letter
+is the option's single letter name (not all options have a single letter name).
+The following table lists both option letters (if they exist) and long names
+along with a description of what the option does:
+.Bl -tag -width 3n
+.It Fl A Ar name
+Sets the elements of the array parameter
+.Ar name
+to
+.Ar arg ...
+If
+.Fl A
+is used, the array is reset (i.e. emptied) first; if
+.Ic +A
+is used, the first N elements are set (where N is the number of arguments);
+the rest are left untouched.
+.Pp
+An alternative syntax for the command
+.Ic set \-A foo \-\- a b c
+which is compatible to
+.Tn GNU
+.Nm bash
+and also supported by
+.At
+.Nm ksh93
+is:
+.Ic foo=(a b c); foo+=(d e)
+.Pp
+Another
+.At
+.Nm ksh93
+and
+.Tn GNU
+.Nm bash
+extension allows specifying the indices used for
+.Ar arg ...
+.Pq from the above example, Ic a b c
+like this:
+.Ic set \-A foo \-\- [0]=a [1]=b [2]=c
+or
+.Ic foo=([0]=a [1]=b [2]=c)
+which can also be written
+.Ic foo=([0]=a b c)
+because indices are incremented automatically.
+.It Fl a \*(Ba Fl o Ic allexport
+All new parameters are created with the export attribute.
+.It Fl b \*(Ba Fl o Ic notify
+Print job notification messages asynchronously, instead of just before the
+prompt.
+Only used if job control is enabled
+.Pq Fl m .
+.It Fl C \*(Ba Fl o Ic noclobber
+Prevent \*(Gt redirection from overwriting existing files.
+Instead, \*(Gt\*(Ba must be used to force an overwrite.
+Note that this is not safe to use for creation of temporary files or
+lockfiles due to a TOCTOU in a check allowing one to redirect output to
+.Pa /dev/null
+or other device files even in
+.Ic noclobber
+mode.
+.It Fl e \*(Ba Fl o Ic errexit
+Exit (after executing the
+.Dv ERR
+trap) as soon as an error occurs or a command fails (i.e. exits with a
+non-zero status).
+This does not apply to commands whose exit status is
+explicitly tested by a shell construct such as
+.Ic if ,
+.Ic until ,
+.Ic while ,
+or
+.Ic !\&
+statements.
+For
+.Ic &&
+or
+.Ic \*(Ba\*(Ba ,
+only the status of the last command is tested.
+.It Fl f \*(Ba Fl o Ic noglob
+Do not expand file name patterns.
+.It Fl h \*(Ba Fl o Ic trackall
+Create tracked aliases for all executed commands (see
+.Sx Aliases
+above).
+Enabled by default for non-interactive shells.
+.It Fl i \*(Ba Fl o Ic interactive
+The shell is an interactive shell.
+This option can only be used when the shell is invoked.
+See above for a description of what this means.
+.It Fl k \*(Ba Fl o Ic keyword
+Parameter assignments are recognised anywhere in a command.
+.It Fl l \*(Ba Fl o Ic login
+The shell is a login shell.
+This option can only be used when the shell is invoked.
+See above for a description of what this means.
+.It Fl m \*(Ba Fl o Ic monitor
+Enable job control (default for interactive shells).
+.It Fl n \*(Ba Fl o Ic noexec
+Do not execute any commands.
+Useful for checking the syntax of scripts
+(ignored if interactive).
+.It Fl p \*(Ba Fl o Ic privileged
+The shell is a privileged shell.
+It is set automatically if, when the shell starts,
+the real UID or GID does not match
+the effective UID (EUID) or GID (EGID), respectively.
+See above for a description of what this means.
+.It Fl r \*(Ba Fl o Ic restricted
+The shell is a restricted shell.
+This option can only be used when the shell is invoked.
+See above for a description of what this means.
+.It Fl s \*(Ba Fl o Ic stdin
+If used when the shell is invoked, commands are read from standard input.
+Set automatically if the shell is invoked with no arguments.
+.Pp
+When
+.Fl s
+is used with the
+.Ic set
+command it causes the specified arguments to be sorted before assigning them to
+the positional parameters (or to array
+.Ar name ,
+if
+.Fl A
+is used).
+.It Fl U \*(Ba Fl o Ic utf8\-mode
+Enable UTF-8 support in the
+.Sx Emacs editing mode
+and internal string handling functions.
+This flag is disabled by default, but can be enabled by setting it on the
+shell command line; is enabled automatically for interactive shells if
+requested at compile time, your system supports
+.Fn setlocale LC_CTYPE \&""
+and optionally
+.Fn nl_langinfo CODESET ,
+or the
+.Ev LC_ALL ,
+.Ev LC_CTYPE ,
+or
+.Ev LANG
+environment variables,
+and at least one of these returns something that matches
+.Dq UTF\-8
+or
+.Dq utf8
+case-insensitively; for direct builtin calls depending on the
+aforementioned environment variables; or for stdin or scripts,
+if the input begins with a UTF-8 Byte Order Mark.
+.It Fl u \*(Ba Fl o Ic nounset
+Referencing of an unset parameter, other than
+.Dq $@
+or
+.Dq $* ,
+is treated as an error, unless one of the
+.Ql \- ,
+.Ql + ,
+or
+.Ql =
+modifiers is used.
+.It Fl v \*(Ba Fl o Ic verbose
+Write shell input to standard error as it is read.
+.It Fl X \*(Ba Fl o Ic markdirs
+Mark directories with a trailing
+.Ql /
+during file name generation.
+.It Fl x \*(Ba Fl o Ic xtrace
+Print command trees when they are executed, preceded by
+the value of
+.Ev PS4 .
+.It Fl o Ic bgnice
+Background jobs are run with lower priority.
+.It Fl o Ic braceexpand
+Enable brace expansion (a.k.a. alternation).
+This is enabled by default.
+If disabled, tilde expansion after an equals sign is disabled as a side effect.
+.It Fl o Ic emacs
+Enable BRL emacs-like command-line editing (interactive shells only); see
+.Sx Emacs editing mode .
+.It Fl o Ic gmacs
+Enable gmacs-like command-line editing (interactive shells only).
+Currently identical to emacs editing except that transpose\-chars (\*(haT) acts
+slightly differently.
+.It Fl o Ic ignoreeof
+The shell will not (easily) exit when end-of-file is read;
+.Ic exit
+must be used.
+To avoid infinite loops, the shell will exit if
+.Dv EOF
+is read 13 times in a row.
+.It Fl o Ic inherit\-xtrace
+Do not reset
+.Fl o Ic xtrace
+upon entering functions.
+This is enabled by default.
+.It Fl o Ic nohup
+Do not kill running jobs with a
+.Dv SIGHUP
+signal when a login shell exits.
+Currently set by default, but this may
+change in the future to be compatible with
+.At
+.Nm ksh ,
+which
+doesn't have this option, but does send the
+.Dv SIGHUP
+signal.
+.It Fl o Ic nolog
+No effect.
+In the original Korn shell, this prevents function definitions from
+being stored in the history file.
+.It Fl o Ic physical
+Causes the
+.Ic cd
+and
+.Ic pwd
+commands to use
+.Dq physical
+(i.e. the filesystem's)
+.Sq ..
+directories instead of
+.Dq logical
+directories (i.e. the shell handles
+.Sq .. ,
+which allows the user to be oblivious of symbolic links to directories).
+Clear by default.
+Note that setting this option does not affect the current value of the
+.Ev PWD
+parameter; only the
+.Ic cd
+command changes
+.Ev PWD .
+See the
+.Ic cd
+and
+.Ic pwd
+commands above for more details.
+.It Fl o Ic pipefail
+Make the exit status of a pipeline (before logically complementing) the
+rightmost non-zero errorlevel, or zero if all commands exited with zero.
+.It Fl o Ic posix
+Enable a somewhat more
+.Px
+ish mode.
+As a side effect, setting this flag turns off
+.Ic braceexpand
+mode, which can be turned back on manually, and
+.Ic sh
+mode.
+.It Fl o Ic sh
+Enable
+.Pa /bin/sh
+.Pq kludge
+mode.
+Automatically enabled if the basename of the shell invocation begins with
+.Dq sh
+and this autodetection feature is compiled in
+.Pq not in MirBSD .
+As a side effect, setting this flag turns off
+.Ic braceexpand
+mode, which can be turned back on manually, and
+.Ic posix
+mode.
+.It Fl o Ic vi
+Enable
+.Xr vi 1 Ns -like
+command-line editing (interactive shells only).
+See
+.Sx Vi editing mode
+for documentation and limitations.
+.It Fl o Ic vi\-esccomplete
+In vi command-line editing, do command and file name completion when escape
+(\*(ha[) is entered in command mode.
+.It Fl o Ic vi\-tabcomplete
+In vi command-line editing, do command and file name completion when tab (\*(haI)
+is entered in insert mode.
+This is the default.
+.It Fl o Ic viraw
+No effect.
+In the original Korn shell, unless
+.Ic viraw
+was set, the vi command-line mode would let the
+.Xr tty 4
+driver do the work until ESC (\*(ha[) was entered.
+.Nm
+is always in viraw mode.
+.El
+.Pp
+These options can also be used upon invocation of the shell.
+The current set of
+options (with single letter names) can be found in the parameter
+.Sq $\- .
+.Ic set Fl o
+with no option name will list all the options and whether each is on or off;
+.Ic set +o
+will print the long names of all options that are currently on.
+.Pp
+Remaining arguments, if any, are positional parameters and are assigned, in
+order, to the positional parameters (i.e. $1, $2, etc.).
+If options end with
+.Ql \-\-
+and there are no remaining arguments, all positional parameters are cleared.
+If no options or arguments are given, the values of all names are printed.
+For unknown historical reasons, a lone
+.Ql \-
+option is treated specially \*(en it clears both the
+.Fl v
+and
+.Fl x
+options.
+.Pp
+.It Ic shift Op Ar number
+The positional parameters
+.Ar number Ns +1 ,
+.Ar number Ns +2 ,
+etc. are renamed to
+.Sq 1 ,
+.Sq 2 ,
+etc.
+.Ar number
+defaults to 1.
+.Pp
+.It Ic sleep Ar seconds
+Suspends execution for a minimum of the
+.Ar seconds
+specified as positive decimal value with an optional fractional part.
+Signal delivery may continue execution earlier.
+.Pp
+.It Ic source Ar file Op Ar arg ...
+Like
+.Ic \&. Po Do dot Dc Pc ,
+except that the current working directory is appended to the
+.Ev PATH
+in GNU
+.Nm bash
+and
+.Nm mksh .
+In
+.Nm ksh93
+and
+.Nm mksh ,
+this is implemented as a shell alias instead of a builtin.
+.Pp
+.It Ic suspend
+Stops the shell as if it had received the suspend character from
+the terminal.
+It is not possible to suspend a login shell unless the parent process
+is a member of the same terminal session but is a member of a different
+process group.
+As a general rule, if the shell was started by another shell or via
+.Xr su 1 ,
+it can be suspended.
+.Pp
+.It Ic test Ar expression
+.It Ic \&[ Ar expression Ic \&]
+.Ic test
+evaluates the
+.Ar expression
+and returns zero status if true, 1 if false, or greater than 1 if there
+was an error.
+It is normally used as the condition command of
+.Ic if
+and
+.Ic while
+statements.
+Symbolic links are followed for all
+.Ar file
+expressions except
+.Fl h
+and
+.Fl L .
+.Pp
+The following basic expressions are available:
+.Bl -tag -width 17n
+.It Fl a Ar file
+.Ar file
+exists.
+.It Fl b Ar file
+.Ar file
+is a block special device.
+.It Fl c Ar file
+.Ar file
+is a character special device.
+.It Fl d Ar file
+.Ar file
+is a directory.
+.It Fl e Ar file
+.Ar file
+exists.
+.It Fl f Ar file
+.Ar file
+is a regular file.
+.It Fl G Ar file
+.Ar file Ns 's
+group is the shell's effective group ID.
+.It Fl g Ar file
+.Ar file Ns 's
+mode has the setgid bit set.
+.It Fl H Ar file
+.Ar file
+is a context dependent directory (only useful on HP-UX).
+.It Fl h Ar file
+.Ar file
+is a symbolic link.
+.It Fl k Ar file
+.Ar file Ns 's
+mode has the
+.Xr sticky 8
+bit set.
+.It Fl L Ar file
+.Ar file
+is a symbolic link.
+.It Fl O Ar file
+.Ar file Ns 's
+owner is the shell's effective user ID.
+.It Fl o Ar option
+Shell
+.Ar option
+is set (see the
+.Ic set
+command above for a list of options).
+As a non-standard extension, if the option starts with a
+.Ql \&! ,
+the test is negated; the test always fails if
+.Ar option
+doesn't exist (so [ \-o foo \-o \-o !foo ] returns true if and only if option
+.Ar foo
+exists).
+The same can be achieved with [ \-o ?foo ] like in
+.At
+.Nm ksh93 .
+.Ar option
+can also be the short flag led by either
+.Ql \-
+or
+.Ql +
+.Pq no logical negation ,
+for example
+.Ql \-x
+or
+.Ql +x
+instead of
+.Ql xtrace .
+.It Fl p Ar file
+.Ar file
+is a named pipe
+.Pq Tn FIFO .
+.It Fl r Ar file
+.Ar file
+exists and is readable.
+.It Fl S Ar file
+.Ar file
+is a
+.Xr unix 4 Ns -domain
+socket.
+.It Fl s Ar file
+.Ar file
+is not empty.
+.It Fl t Ar fd
+File descriptor
+.Ar fd
+is a
+.Xr tty 4
+device.
+.It Fl u Ar file
+.Ar file Ns 's
+mode has the setuid bit set.
+.It Fl w Ar file
+.Ar file
+exists and is writable.
+.It Fl x Ar file
+.Ar file
+exists and is executable.
+.It Ar file1 Fl nt Ar file2
+.Ar file1
+is newer than
+.Ar file2
+or
+.Ar file1
+exists and
+.Ar file2
+does not.
+.It Ar file1 Fl ot Ar file2
+.Ar file1
+is older than
+.Ar file2
+or
+.Ar file2
+exists and
+.Ar file1
+does not.
+.It Ar file1 Fl ef Ar file2
+.Ar file1
+is the same file as
+.Ar file2 .
+.It Ar string
+.Ar string
+has non-zero length.
+.It Fl n Ar string
+.Ar string
+is not empty.
+.It Fl z Ar string
+.Ar string
+is empty.
+.It Ar string No = Ar string
+Strings are equal.
+.It Ar string No == Ar string
+Strings are equal.
+.It Ar string No \*(Gt Ar string
+First string operand is greater than second string operand.
+.It Ar string No \*(Lt Ar string
+First string operand is less than second string operand.
+.It Ar string No != Ar string
+Strings are not equal.
+.It Ar number Fl eq Ar number
+Numbers compare equal.
+.It Ar number Fl ne Ar number
+Numbers compare not equal.
+.It Ar number Fl ge Ar number
+Numbers compare greater than or equal.
+.It Ar number Fl gt Ar number
+Numbers compare greater than.
+.It Ar number Fl le Ar number
+Numbers compare less than or equal.
+.It Ar number Fl \< Ar number
+Numbers compare less than.
+.El
+.Pp
+The above basic expressions, in which unary operators have precedence over
+binary operators, may be combined with the following operators (listed in
+increasing order of precedence):
+.Bd -literal -offset indent
+expr \-o expr Logical OR.
+expr \-a expr Logical AND.
+! expr Logical NOT.
+( expr ) Grouping.
+.Ed
+.Pp
+Note that a number actually may be an arithmetic expression, such as
+a mathematical term or the name of an integer variable:
+.Bd -literal -offset indent
+x=1; [ "x" \-eq 1 ] evaluates to true
+.Ed
+.Pp
+Note that some special rules are applied (courtesy of
+.Px
+) if the number of arguments to
+.Ic test
+or inside the brackets
+.Ic \&[ ... \&]
+is less than five: if leading
+.Ql \&!
+arguments can be stripped such that only one to three arguments remain,
+then the lowered comparison is executed; (thanks to XSI) parentheses
+.Ic \e( ... \e)
+lower four- and three-argument forms to two- and one-argument forms,
+respectively; three-argument forms ultimately prefer binary operations,
+followed by negation and parenthesis lowering; two- and four-argument forms
+prefer negation followed by parenthesis; the one-argument form always implies
+.Fl n .
+.Pp
+.Sy Note :
+A common mistake is to use
+.Dq if \&[ $foo = bar \&]
+which fails if parameter
+.Dq foo
+is
+.Dv NULL
+or unset, if it has embedded spaces (i.e.\&
+.Ev IFS
+octets), or if it is a unary operator like
+.Sq \&!
+or
+.Sq Fl n .
+Use tests like
+.Dq if \&[ x\&"$foo\&" = x"bar" \&]
+instead, or the double-bracket operator
+.Dq if \&[[ $foo = bar \&]]
+or, to avoid pattern matching (see
+.Ic \&[[
+above):
+.Dq if \&[[ $foo = \&"$bar" \&]]
+.Pp
+The
+.Ic \&[[ ... ]]
+construct is not only more secure to use but also often faster.
+.Pp
+.It Xo
+.Ic time
+.Op Fl p
+.Op Ar pipeline
+.Xc
+If a
+.Ar pipeline
+is given, the times used to execute the pipeline are reported.
+If no pipeline
+is given, then the user and system time used by the shell itself, and all the
+commands it has run since it was started, are reported.
+The times reported are the real time (elapsed time from start to finish),
+the user CPU time (time spent running in user mode), and the system CPU time
+(time spent running in kernel mode).
+Times are reported to standard error; the format of the output is:
+.Pp
+.Dl "0m0.00s real 0m0.00s user 0m0.00s system"
+.Pp
+If the
+.Fl p
+option is given the output is slightly longer:
+.Bd -literal -offset indent
+real 0.00
+user 0.00
+sys 0.00
+.Ed
+.Pp
+It is an error to specify the
+.Fl p
+option unless
+.Ar pipeline
+is a simple command.
+.Pp
+Simple redirections of standard error do not affect the output of the
+.Ic time
+command:
+.Pp
+.Dl $ time sleep 1 2\*(Gtafile
+.Dl $ { time sleep 1; } 2\*(Gtafile
+.Pp
+Times for the first command do not go to
+.Dq afile ,
+but those of the second command do.
+.Pp
+.It Ic times
+Print the accumulated user and system times used both by the shell
+and by processes that the shell started which have exited.
+The format of the output is:
+.Bd -literal -offset indent
+0m0.00s 0m0.00s
+0m0.00s 0m0.00s
+.Ed
+.Pp
+.It Ic trap Op Ar handler signal ...
+Sets a trap handler that is to be executed when any of the specified signals are
+received.
+.Ar handler
+is either a
+.Dv NULL
+string, indicating the signals are to be ignored, a minus sign
+.Pq Sq \- ,
+indicating that the default action is to be taken for the signals (see
+.Xr signal 3 ) ,
+or a string containing shell commands to be evaluated and executed at the first
+opportunity (i.e. when the current command completes, or before printing the
+next
+.Ev PS1
+prompt) after receipt of one of the signals.
+.Ar signal
+is the name of a signal (e.g.\&
+.Dv PIPE
+or
+.Dv ALRM )
+or the number of the signal (see the
+.Ic kill \-l
+command above).
+.Pp
+There are two special signals:
+.Dv EXIT
+(also known as 0) which is executed when the shell is about to exit, and
+.Dv ERR ,
+which is executed after an error occurs (an error is something that would cause
+the shell to exit if the
+.Fl e
+or
+.Ic errexit
+option were set \*(en see the
+.Ic set
+command above).
+.Dv EXIT
+handlers are executed in the environment of the last executed command.
+Note
+that for non-interactive shells, the trap handler cannot be changed for signals
+that were ignored when the shell started.
+.Pp
+With no arguments,
+.Ic trap
+lists, as a series of
+.Ic trap
+commands, the current state of the traps that have been set since the shell
+started.
+Note that the output of
+.Ic trap
+cannot be usefully piped to another process (an artifact of the fact that
+traps are cleared when subprocesses are created).
+.Pp
+The original Korn shell's
+.Dv DEBUG
+trap and the handling of
+.Dv ERR
+and
+.Dv EXIT
+traps in functions are not yet implemented.
+.Pp
+.It Ic true
+A command that exits with a zero value.
+.Pp
+.It Xo
+.Ic global
+.Oo Op Ic +\-alpnrtUux
+.Op Fl L Ns Op Ar n
+.Op Fl R Ns Op Ar n
+.Op Fl Z Ns Op Ar n
+.Op Fl i Ns Op Ar n
+.No \*(Ba Fl f Op Fl tux Oc
+.Oo Ar name
+.Op Ns = Ns Ar value
+.Ar ... Oc
+.Xc
+.It Xo
+.Ic typeset
+.Oo Op Ic +\-alpnrtUux
+.Op Fl LRZ Ns Op Ar n
+.Op Fl i Ns Op Ar n
+.No \*(Ba Fl f Op Fl tux Oc
+.Oo Ar name
+.Op Ns = Ns Ar value
+.Ar ... Oc
+.Xc
+Display or set parameter attributes.
+With no
+.Ar name
+arguments, parameter attributes are displayed; if no options are used, the
+current attributes of all parameters are printed as
+.Ic typeset
+commands; if an option is given (or
+.Ql \-
+with no option letter), all parameters and their values with the specified
+attributes are printed; if options are introduced with
+.Ql + ,
+parameter values are not printed.
+.Pp
+If
+.Ar name
+arguments are given, the attributes of the named parameters are set
+.Pq Ic \-
+or cleared
+.Pq Ic + .
+Values for parameters may optionally be specified.
+For
+.Ar name Ns \&[*] ,
+the change affects the entire array, and no value may be specified.
+.Pp
+If
+.Ic typeset
+is used inside a function, any parameters specified are localised.
+This is not done by the otherwise identical
+.Ic global .
+.Em Note :
+This means that
+.Nm No 's Ic global
+command is
+.Em not
+equivalent to other programming languages' as it does not allow a
+function called from another function to access a parameter at truly
+global scope, but only prevents putting an accessed one into local scope.
+.Pp
+When
+.Fl f
+is used,
+.Ic typeset
+operates on the attributes of functions.
+As with parameters, if no
+.Ar name
+arguments are given,
+functions are listed with their values (i.e. definitions) unless
+options are introduced with
+.Ql + ,
+in which case only the function names are reported.
+.Bl -tag -width Ds
+.It Fl a
+Indexed array attribute.
+.It Fl f
+Function mode.
+Display or set functions and their attributes, instead of parameters.
+.It Fl i Ns Op Ar n
+Integer attribute.
+.Ar n
+specifies the base to use when displaying the integer (if not specified, the
+base given in the first assignment is used).
+Parameters with this attribute may
+be assigned values containing arithmetic expressions.
+.It Fl L Ns Op Ar n
+Left justify attribute.
+.Ar n
+specifies the field width.
+If
+.Ar n
+is not specified, the current width of a parameter (or the width of its first
+assigned value) is used.
+Leading whitespace (and zeros, if used with the
+.Fl Z
+option) is stripped.
+If necessary, values are either truncated or space padded
+to fit the field width.
+.It Fl l
+Lower case attribute.
+All upper case characters in values are converted to lower case.
+(In the original Korn shell, this parameter meant
+.Dq long integer
+when used with the
+.Fl i
+option.)
+.It Fl n
+Create a bound variable (name reference): any access to the variable
+.Ar name
+will access the variable
+.Ar value
+in the current scope (this is different from
+.At
+.Nm ksh93 ! )
+instead.
+Also different from
+.At
+.Nm ksh93
+is that
+.Ar value
+is lazily evaluated at the time
+.Ar name
+is accessed.
+This can be used by functions to access variables whose names are
+passed as parametres, instead of using
+.Ic eval .
+.It Fl p
+Print complete
+.Ic typeset
+commands that can be used to re-create the attributes and values of
+parameters.
+.It Fl R Ns Op Ar n
+Right justify attribute.
+.Ar n
+specifies the field width.
+If
+.Ar n
+is not specified, the current width of a parameter (or the width of its first
+assigned value) is used.
+Trailing whitespace is stripped.
+If necessary, values are either stripped of leading characters or space
+padded to make them fit the field width.
+.It Fl r
+Read-only attribute.
+Parameters with this attribute may not be assigned to or unset.
+Once this attribute is set, it cannot be turned off.
+.It Fl t
+Tag attribute.
+Has no meaning to the shell; provided for application use.
+.Pp
+For functions,
+.Fl t
+is the trace attribute.
+When functions with the trace attribute are executed, the
+.Ic xtrace
+.Pq Fl x
+shell option is temporarily turned on.
+.It Fl U
+Unsigned integer attribute.
+Integers are printed as unsigned values (combine with the
+.Fl i
+option).
+This option is not in the original Korn shell.
+.It Fl u
+Upper case attribute.
+All lower case characters in values are converted to upper case.
+(In the original Korn shell, this parameter meant
+.Dq unsigned integer
+when used with the
+.Fl i
+option which meant upper case letters would never be used for bases greater
+than 10.
+See the
+.Fl U
+option.)
+.Pp
+For functions,
+.Fl u
+is the undefined attribute.
+See
+.Sx Functions
+above for the implications of this.
+.It Fl x
+Export attribute.
+Parameters (or functions) are placed in the environment of
+any executed commands.
+Exported functions are not yet implemented.
+.It Fl Z Ns Op Ar n
+Zero fill attribute.
+If not combined with
+.Fl L ,
+this is the same as
+.Fl R ,
+except zero padding is used instead of space padding.
+For integers, the number instead of the base is padded.
+.El
+.Pp
+If any of the
+.\" long integer ,
+.Fl i ,
+.Fl L ,
+.Fl l ,
+.Fl R ,
+.Fl U ,
+.Fl u ,
+or
+.Fl Z
+options are changed, all others from this set are cleared,
+unless they are also given on the same command line.
+.Pp
+.It Xo
+.Ic ulimit
+.Op Fl aBCcdefHilMmnOPpqrSsTtVvw
+.Op Ar value
+.Xc
+Display or set process limits.
+If no options are used, the file size limit
+.Pq Fl f
+is assumed.
+.Ar value ,
+if specified, may be either an arithmetic expression or the word
+.Dq unlimited .
+The limits affect the shell and any processes created by the shell after a
+limit is imposed.
+Note that some systems may not allow limits to be increased
+once they are set.
+Also note that the types of limits available are system
+dependent \*(en some systems have only the
+.Fl f
+limit.
+.Bl -tag -width 5n
+.It Fl a
+Display all limits; unless
+.Fl H
+is used, soft limits are displayed.
+.It Fl B Ar n
+Set the socket buffer size to
+.Ar n
+kibibytes.
+.It Fl C Ar n
+Set the number of cached threads to
+.Ar n .
+.It Fl c Ar n
+Impose a size limit of
+.Ar n
+blocks on the size of core dumps.
+.It Fl d Ar n
+Impose a size limit of
+.Ar n
+kibibytes on the size of the data area.
+.It Fl e Ar n
+Set the maximum niceness to
+.Ar n .
+.It Fl f Ar n
+Impose a size limit of
+.Ar n
+blocks on files written by the shell and its child processes (files of any
+size may be read).
+.It Fl H
+Set the hard limit only (the default is to set both hard and soft limits).
+.It Fl i Ar n
+Set the number of pending signals to
+.Ar n .
+.It Fl l Ar n
+Impose a limit of
+.Ar n
+kibibytes on the amount of locked (wired) physical memory.
+.It Fl M Ar n
+Set the AIO locked memory to
+.Ar n
+kibibytes.
+.It Fl m Ar n
+Impose a limit of
+.Ar n
+kibibytes on the amount of physical memory used.
+.It Fl n Ar n
+Impose a limit of
+.Ar n
+file descriptors that can be open at once.
+.It Fl O Ar n
+Set the number of AIO operations to
+.Ar n .
+.It Fl P Ar n
+Limit the number of threads per process to
+.Ar n .
+.It Fl p Ar n
+Impose a limit of
+.Ar n
+processes that can be run by the user at any one time.
+.It Fl q Ar n
+Limit the size of
+.Tn POSIX
+message queues to
+.Ar n
+bytes.
+.It Fl r Ar n
+Set the maximum real-time priority to
+.Ar n .
+.It Fl S
+Set the soft limit only (the default is to set both hard and soft limits).
+.It Fl s Ar n
+Impose a size limit of
+.Ar n
+kibibytes on the size of the stack area.
+.It Fl T Ar n
+Impose a time limit of
+.Ar n
+real seconds to be used by each process.
+.It Fl t Ar n
+Impose a time limit of
+.Ar n
+CPU seconds spent in user mode to be used by each process.
+.It Fl V Ar n
+Set the number of vnode monitors on Haiku to
+.Ar n .
+.It Fl v Ar n
+Impose a limit of
+.Ar n
+kibibytes on the amount of virtual memory (address space) used.
+.It Fl w Ar n
+Impose a limit of
+.Ar n
+kibibytes on the amount of swap space used.
+.El
+.Pp
+As far as
+.Ic ulimit
+is concerned, a block is 512 bytes.
+.Pp
+.It Xo
+.Ic umask
+.Op Fl S
+.Op Ar mask
+.Xc
+Display or set the file permission creation mask, or umask (see
+.Xr umask 2 ) .
+If the
+.Fl S
+option is used, the mask displayed or set is symbolic; otherwise, it is an
+octal number.
+.Pp
+Symbolic masks are like those used by
+.Xr chmod 1 .
+When used, they describe what permissions may be made available (as opposed to
+octal masks in which a set bit means the corresponding bit is to be cleared).
+For example,
+.Dq ug=rwx,o=
+sets the mask so files will not be readable, writable, or executable by
+.Dq others ,
+and is equivalent (on most systems) to the octal mask
+.Dq 007 .
+.Pp
+.It Xo
+.Ic unalias
+.Op Fl adt
+.Op Ar name ...
+.Xc
+The aliases for the given names are removed.
+If the
+.Fl a
+option is used, all aliases are removed.
+If the
+.Fl t
+or
+.Fl d
+options are used, the indicated operations are carried out on tracked or
+directory aliases, respectively.
+.Pp
+.It Xo
+.Ic unset
+.Op Fl fv
+.Ar parameter ...
+.Xc
+Unset the named parameters
+.Po
+.Fl v ,
+the default
+.Pc
+or functions
+.Pq Fl f .
+With
+.Ar parameter Ns \&[*] ,
+attributes are kept, only values are unset.
+.Pp
+The exit status is non-zero if any of the parameters have the read-only
+attribute set, zero otherwise.
+.Pp
+.It Ic wait Op Ar job ...
+Wait for the specified job(s) to finish.
+The exit status of
+.Ic wait
+is that of the last specified job; if the last job is killed by a signal, the
+exit status is 128 + the number of the signal (see
+.Ic kill \-l Ar exit-status
+above); if the last specified job can't be found (because it never existed, or
+had already finished), the exit status of
+.Ic wait
+is 127.
+See
+.Sx Job control
+below for the format of
+.Ar job .
+.Ic wait
+will return if a signal for which a trap has been set is received, or if a
+.Dv SIGHUP ,
+.Dv SIGINT ,
+or
+.Dv SIGQUIT
+signal is received.
+.Pp
+If no jobs are specified,
+.Ic wait
+waits for all currently running jobs (if any) to finish and exits with a zero
+status.
+If job monitoring is enabled, the completion status of jobs is printed
+(this is not the case when jobs are explicitly specified).
+.Pp
+.It Xo
+.Ic whence
+.Op Fl pv
+.Op Ar name ...
+.Xc
+For each
+.Ar name ,
+the type of command is listed (reserved word, built-in, alias,
+function, tracked alias, or executable).
+If the
+.Fl p
+option is used, a path search is performed even if
+.Ar name
+is a reserved word, alias, etc.
+Without the
+.Fl v
+option,
+.Ic whence
+is similar to
+.Ic command Fl v
+except that
+.Ic whence
+will find reserved words and won't print aliases as alias commands.
+With the
+.Fl v
+option,
+.Ic whence
+is the same as
+.Ic command Fl V .
+Note that for
+.Ic whence ,
+the
+.Fl p
+option does not affect the search path used, as it does for
+.Ic command .
+If the type of one or more of the names could not be determined, the exit
+status is non-zero.
+.El
+.Ss Job control
+Job control refers to the shell's ability to monitor and control jobs which
+are processes or groups of processes created for commands or pipelines.
+At a minimum, the shell keeps track of the status of the background (i.e.\&
+asynchronous) jobs that currently exist; this information can be displayed
+using the
+.Ic jobs
+commands.
+If job control is fully enabled (using
+.Ic set \-m
+or
+.Ic set \-o monitor ) ,
+as it is for interactive shells, the processes of a job are placed in their
+own process group.
+Foreground jobs can be stopped by typing the suspend
+character from the terminal (normally \*(haZ), jobs can be restarted in either the
+foreground or background using the
+.Ic fg
+and
+.Ic bg
+commands, and the state of the terminal is saved or restored when a foreground
+job is stopped or restarted, respectively.
+.Pp
+Note that only commands that create processes (e.g. asynchronous commands,
+subshell commands, and non-built-in, non-function commands) can be stopped;
+commands like
+.Ic read
+cannot be.
+.Pp
+When a job is created, it is assigned a job number.
+For interactive shells, this number is printed inside
+.Dq \&[..] ,
+followed by the process IDs of the processes in the job when an asynchronous
+command is run.
+A job may be referred to in the
+.Ic bg ,
+.Ic fg ,
+.Ic jobs ,
+.Ic kill ,
+and
+.Ic wait
+commands either by the process ID of the last process in the command pipeline
+(as stored in the
+.Ic $!\&
+parameter) or by prefixing the job number with a percent
+sign
+.Pq Sq % .
+Other percent sequences can also be used to refer to jobs:
+.Bl -tag -width "%+ x %% x %XX"
+.It %+ \*(Ba %% \*(Ba %
+The most recently stopped job, or, if there are no stopped jobs, the oldest
+running job.
+.It %\-
+The job that would be the
+.Ic %+
+job if the latter did not exist.
+.It % Ns Ar n
+The job with job number
+.Ar n .
+.It %? Ns Ar string
+The job with its command containing the string
+.Ar string
+(an error occurs if multiple jobs are matched).
+.It % Ns Ar string
+The job with its command starting with the string
+.Ar string
+(an error occurs if multiple jobs are matched).
+.El
+.Pp
+When a job changes state (e.g. a background job finishes or foreground job is
+stopped), the shell prints the following status information:
+.Pp
+.D1 [ Ns Ar number ] Ar flag status command
+.Pp
+where...
+.Bl -tag -width "command"
+.It Ar number
+is the job number of the job;
+.It Ar flag
+is the
+.Ql +
+or
+.Ql \-
+character if the job is the
+.Ic %+
+or
+.Ic %\-
+job, respectively, or space if it is neither;
+.It Ar status
+indicates the current state of the job and can be:
+.Bl -tag -width "RunningXX"
+.It Done Op Ar number
+The job exited.
+.Ar number
+is the exit status of the job which is omitted if the status is zero.
+.It Running
+The job has neither stopped nor exited (note that running does not necessarily
+mean consuming CPU time \*(en
+the process could be blocked waiting for some event).
+.It Stopped Op Ar signal
+The job was stopped by the indicated
+.Ar signal
+(if no signal is given, the job was stopped by
+.Dv SIGTSTP ) .
+.It Ar signal-description Op Dq core dumped
+The job was killed by a signal (e.g. memory fault, hangup); use
+.Ic kill \-l
+for a list of signal descriptions.
+The
+.Dq core dumped
+message indicates the process created a core file.
+.El
+.It Ar command
+is the command that created the process.
+If there are multiple processes in
+the job, each process will have a line showing its
+.Ar command
+and possibly its
+.Ar status ,
+if it is different from the status of the previous process.
+.El
+.Pp
+When an attempt is made to exit the shell while there are jobs in the stopped
+state, the shell warns the user that there are stopped jobs and does not exit.
+If another attempt is immediately made to exit the shell, the stopped jobs are
+sent a
+.Dv SIGHUP
+signal and the shell exits.
+Similarly, if the
+.Ic nohup
+option is not set and there are running jobs when an attempt is made to exit
+a login shell, the shell warns the user and does not exit.
+If another attempt
+is immediately made to exit the shell, the running jobs are sent a
+.Dv SIGHUP
+signal and the shell exits.
+.Ss Interactive input line editing
+The shell supports three modes of reading command lines from a
+.Xr tty 4
+in an interactive session, controlled by the
+.Ic emacs ,
+.Ic gmacs ,
+and
+.Ic vi
+options (at most one of these can be set at once).
+The default is
+.Ic emacs .
+Editing modes can be set explicitly using the
+.Ic set
+built-in.
+If none of these options are enabled,
+the shell simply reads lines using the normal
+.Xr tty 4
+driver.
+If the
+.Ic emacs
+or
+.Ic gmacs
+option is set, the shell allows emacs-like editing of the command; similarly,
+if the
+.Ic vi
+option is set, the shell allows vi-like editing of the command.
+These modes are described in detail in the following sections.
+.Pp
+In these editing modes, if a line is longer than the screen width (see the
+.Ev COLUMNS
+parameter),
+a
+.Ql \*(Gt ,
+.Ql + ,
+or
+.Ql \*(Lt
+character is displayed in the last column indicating that there are more
+characters after, before and after, or before the current position,
+respectively.
+The line is scrolled horizontally as necessary.
+.Pp
+Completed lines are pushed into the history, unless they begin with an
+IFS octet or IFS white space, or are the same as the previous line.
+.Ss Emacs editing mode
+When the
+.Ic emacs
+option is set, interactive input line editing is enabled.
+Warning: This mode is
+slightly different from the emacs mode in the original Korn shell.
+In this mode, various editing commands
+(typically bound to one or more control characters) cause immediate actions
+without waiting for a newline.
+Several editing commands are bound to particular
+control characters when the shell is invoked; these bindings can be changed
+using the
+.Ic bind
+command.
+.Pp
+The following is a list of available editing commands.
+Each description starts with the name of the command,
+suffixed with a colon;
+an
+.Op Ar n
+(if the command can be prefixed with a count); and any keys the command is
+bound to by default, written using caret notation
+e.g. the ASCII ESC character is written as \*(ha[.
+These control sequences are not case sensitive.
+A count prefix for a command is entered using the sequence
+.Pf \*(ha[ Ns Ar n ,
+where
+.Ar n
+is a sequence of 1 or more digits.
+Unless otherwise specified, if a count is
+omitted, it defaults to 1.
+.Pp
+Note that editing command names are used only with the
+.Ic bind
+command.
+Furthermore, many editing commands are useful only on terminals with
+a visible cursor.
+The default bindings were chosen to resemble corresponding
+Emacs key bindings.
+The user's
+.Xr tty 4
+characters (e.g.\&
+.Dv ERASE )
+are bound to
+reasonable substitutes and override the default bindings.
+.Bl -tag -width Ds
+.It abort: \*(haC, \*(haG
+Abort the current command, empty the line buffer and
+set the exit state to interrupted.
+.It auto\-insert: Op Ar n
+Simply causes the character to appear as literal input.
+Most ordinary characters are bound to this.
+.It Xo backward\-char:
+.Op Ar n
+.No \*(haB , \*(haXD , ANSI-CurLeft
+.Xc
+Moves the cursor backward
+.Ar n
+characters.
+.It Xo backward\-word:
+.Op Ar n
+.No \*(ha[b , ANSI-Ctrl-CurLeft , ANSI-Alt-CurLeft
+.Xc
+Moves the cursor backward to the beginning of the word; words consist of
+alphanumerics, underscore
+.Pq Sq _ ,
+and dollar sign
+.Pq Sq $
+characters.
+.It beginning\-of\-history: \*(ha[\*(Lt
+Moves to the beginning of the history.
+.It beginning\-of\-line: \*(haA, ANSI-Home
+Moves the cursor to the beginning of the edited input line.
+.It Xo capitalise\-word:
+.Op Ar n
+.No \*(ha[C , \*(ha[c
+.Xc
+Uppercase the first character in the next
+.Ar n
+words, leaving the cursor past the end of the last word.
+.It clear\-screen: \*(ha[\*(haL
+Prints a compile-time configurable sequence to clear the screen and home
+the cursor, redraws the entire prompt and the currently edited input line.
+The default sequence works for almost all standard terminals.
+.It comment: \*(ha[#
+If the current line does not begin with a comment character, one is added at
+the beginning of the line and the line is entered (as if return had been
+pressed); otherwise, the existing comment characters are removed and the cursor
+is placed at the beginning of the line.
+.It complete: \*(ha[\*(ha[
+Automatically completes as much as is unique of the command name or the file
+name containing the cursor.
+If the entire remaining command or file name is
+unique, a space is printed after its completion, unless it is a directory name
+in which case
+.Ql /
+is appended.
+If there is no command or file name with the current partial word
+as its prefix, a bell character is output (usually causing a beep to be
+sounded).
+.It complete\-command: \*(haX\*(ha[
+Automatically completes as much as is unique of the command name having the
+partial word up to the cursor as its prefix, as in the
+.Ic complete
+command above.
+.It complete\-file: \*(ha[\*(haX
+Automatically completes as much as is unique of the file name having the
+partial word up to the cursor as its prefix, as in the
+.Ic complete
+command described above.
+.It complete\-list: \*(haI, \*(ha[=
+Complete as much as is possible of the current word,
+and list the possible completions for it.
+If only one completion is possible,
+match as in the
+.Ic complete
+command above.
+Note that \*(haI is usually generated by the TAB (tabulator) key.
+.It Xo delete\-char\-backward:
+.Op Ar n
+.No ERASE , \*(ha? , \*(haH
+.Xc
+Deletes
+.Ar n
+characters before the cursor.
+.It Xo delete\-char\-forward:
+.Op Ar n
+.No ANSI-Del
+.Xc
+Deletes
+.Ar n
+characters after the cursor.
+.It Xo delete\-word\-backward:
+.Op Ar n
+.No WERASE , \*(ha[\*(ha? , \*(ha[\*(haH , \*(ha[h
+.Xc
+Deletes
+.Ar n
+words before the cursor.
+.It Xo delete\-word\-forward:
+.Op Ar n
+.No \*(ha[d
+.Xc
+Deletes characters after the cursor up to the end of
+.Ar n
+words.
+.It Xo down\-history:
+.Op Ar n
+.No \*(haN , \*(haXB , ANSI-CurDown
+.Xc
+Scrolls the history buffer forward
+.Ar n
+lines (later).
+Each input line originally starts just after the last entry
+in the history buffer, so
+.Ic down\-history
+is not useful until either
+.Ic search\-history ,
+.Ic search\-history\-up
+or
+.Ic up\-history
+has been performed.
+.It Xo downcase\-word:
+.Op Ar n
+.No \*(ha[L , \*(ha[l
+.Xc
+Lowercases the next
+.Ar n
+words.
+.It Xo edit\-line:
+.Op Ar n
+.No \*(haXe
+.Xc
+Edit line
+.Ar n
+or the current line, if not specified, interactively.
+The actual command executed is
+.Ic fc \-e ${VISUAL:\-${EDITOR:\-vi}} Ar n .
+.It end\-of\-history: \*(ha[\*(Gt
+Moves to the end of the history.
+.It end\-of\-line: \*(haE, ANSI-End
+Moves the cursor to the end of the input line.
+.It eot: \*(ha_
+Acts as an end-of-file; this is useful because edit-mode input disables
+normal terminal input canonicalization.
+.It Xo eot\-or\-delete:
+.Op Ar n
+.No \*(haD
+.Xc
+Acts as
+.Ic eot
+if alone on a line; otherwise acts as
+.Ic delete\-char\-forward .
+.It error: (not bound)
+Error (ring the bell).
+.It exchange\-point\-and\-mark: \*(haX\*(haX
+Places the cursor where the mark is and sets the mark to where the cursor was.
+.It expand\-file: \*(ha[*
+Appends a
+.Ql *
+to the current word and replaces the word with the result of performing file
+globbing on the word.
+If no files match the pattern, the bell is rung.
+.It Xo forward\-char:
+.Op Ar n
+.No \*(haF , \*(haXC , ANSI-CurRight
+.Xc
+Moves the cursor forward
+.Ar n
+characters.
+.It Xo forward\-word:
+.Op Ar n
+.No \*(ha[f , ANSI-Ctrl-CurRight , ANSI-Alt-CurRight
+.Xc
+Moves the cursor forward to the end of the
+.Ar n Ns th
+word.
+.It Xo goto\-history:
+.Op Ar n
+.No \*(ha[g
+.Xc
+Goes to history number
+.Ar n .
+.It kill\-line: KILL
+Deletes the entire input line.
+.It kill\-region: \*(haW
+Deletes the input between the cursor and the mark.
+.It Xo kill\-to\-eol:
+.Op Ar n
+.No \*(haK
+.Xc
+Deletes the input from the cursor to the end of the line if
+.Ar n
+is not specified; otherwise deletes characters between the cursor and column
+.Ar n .
+.It list: \*(ha[?
+Prints a sorted, columnated list of command names or file names (if any) that
+can complete the partial word containing the cursor.
+Directory names have
+.Ql /
+appended to them.
+.It list\-command: \*(haX?
+Prints a sorted, columnated list of command names (if any) that can complete
+the partial word containing the cursor.
+.It list\-file: \*(haX\*(haY
+Prints a sorted, columnated list of file names (if any) that can complete the
+partial word containing the cursor.
+File type indicators are appended as described under
+.Ic list
+above.
+.It newline: \*(haJ , \*(haM
+Causes the current input line to be processed by the shell.
+The current cursor position may be anywhere on the line.
+.It newline\-and\-next: \*(haO
+Causes the current input line to be processed by the shell, and the next line
+from history becomes the current line.
+This is only useful after an
+.Ic up\-history ,
+.Ic search\-history
+or
+.Ic search\-history\-up .
+.It no\-op: QUIT
+This does nothing.
+.It prefix\-1: \*(ha[
+Introduces a 2-character command sequence.
+.It prefix\-2: \*(haX , \*(ha[[ , \*(ha[O
+Introduces a 2-character command sequence.
+.It Xo prev\-hist\-word:
+.Op Ar n
+.No \*(ha[. , \*(ha[_
+.Xc
+The last word, or, if given, the
+.Ar n Ns th
+word (zero-based) of the previous (on repeated execution, second-last,
+third-last, etc.) command is inserted at the cursor.
+Use of this editing command trashes the mark.
+.It quote: \*(ha\*(ha , \*(haV
+The following character is taken literally rather than as an editing command.
+.It redraw: \*(haL
+Reprints the last line of the prompt string and the current input line
+on a new line.
+.It Xo search\-character\-backward:
+.Op Ar n
+.No \*(ha[\*(ha]
+.Xc
+Search backward in the current line for the
+.Ar n Ns th
+occurrence of the next character typed.
+.It Xo search\-character\-forward:
+.Op Ar n
+.No \*(ha]
+.Xc
+Search forward in the current line for the
+.Ar n Ns th
+occurrence of the next character typed.
+.It search\-history: \*(haR
+Enter incremental search mode.
+The internal history list is searched
+backwards for commands matching the input.
+An initial
+.Ql \*(ha
+in the search string anchors the search.
+The escape key will leave search mode.
+Other commands, including sequences of escape as
+.Ic prefix\-1
+followed by a
+.Ic prefix\-1
+or
+.Ic prefix\-2
+key will be executed after leaving search mode.
+The
+.Ic abort Pq \*(haG
+command will restore the input line before search started.
+Successive
+.Ic search\-history
+commands continue searching backward to the next previous occurrence of the
+pattern.
+The history buffer retains only a finite number of lines; the oldest
+are discarded as necessary.
+.It search\-history\-up: ANSI-PgUp
+Search backwards through the history buffer for commands whose beginning match
+the portion of the input line before the cursor.
+When used on an empty line, this has the same effect as
+.Ic up\-history .
+.It search\-history\-down: ANSI-PgDn
+Search forwards through the history buffer for commands whose beginning match
+the portion of the input line before the cursor.
+When used on an empty line, this has the same effect as
+.Ic down\-history .
+This is only useful after an
+.Ic up\-history ,
+.Ic search\-history
+or
+.Ic search\-history\-up .
+.It set\-mark\-command: \*(ha[ Ns Aq space
+Set the mark at the cursor position.
+.It transpose\-chars: \*(haT
+If at the end of line, or if the
+.Ic gmacs
+option is set, this exchanges the two previous characters; otherwise, it
+exchanges the previous and current characters and moves the cursor one
+character to the right.
+.It Xo up\-history:
+.Op Ar n
+.No \*(haP , \*(haXA , ANSI-CurUp
+.Xc
+Scrolls the history buffer backward
+.Ar n
+lines (earlier).
+.It Xo upcase\-word:
+.Op Ar n
+.No \*(ha[U , \*(ha[u
+.Xc
+Uppercase the next
+.Ar n
+words.
+.It version: \*(ha[\*(haV
+Display the version of
+.Nm mksh .
+The current edit buffer is restored as soon as a key is pressed.
+The restoring keypress is processed, unless it is a space.
+.It yank: \*(haY
+Inserts the most recently killed text string at the current cursor position.
+.It yank\-pop: \*(ha[y
+Immediately after a
+.Ic yank ,
+replaces the inserted text string with the next previously killed text string.
+.El
+.Ss Vi editing mode
+.Em Note:
+The vi command-line editing mode is orphaned, yet still functional.
+It is 8-bit clean but specifically does not support UTF-8 or MBCS.
+.Pp
+The vi command-line editor in
+.Nm
+has basically the same commands as the
+.Xr vi 1
+editor with the following exceptions:
+.Bl -bullet
+.It
+You start out in insert mode.
+.It
+There are file name and command completion commands:
+=, \e, *, \*(haX, \*(haE, \*(haF, and, optionally,
+.Aq tab
+and
+.Aq esc .
+.It
+The
+.Ic _
+command is different (in
+.Nm mksh ,
+it is the last argument command; in
+.Xr vi 1
+it goes to the start of the current line).
+.It
+The
+.Ic /
+and
+.Ic G
+commands move in the opposite direction to the
+.Ic j
+command.
+.It
+Commands which don't make sense in a single line editor are not available
+(e.g. screen movement commands and
+.Xr ex 1 Ns -style
+colon
+.Pq Ic \&:
+commands).
+.El
+.Pp
+Like
+.Xr vi 1 ,
+there are two modes:
+.Dq insert
+mode and
+.Dq command
+mode.
+In insert mode, most characters are simply put in the buffer at the
+current cursor position as they are typed; however, some characters are
+treated specially.
+In particular, the following characters are taken from current
+.Xr tty 4
+settings
+(see
+.Xr stty 1 )
+and have their usual meaning (normal values are in parentheses): kill (\*(haU),
+erase (\*(ha?), werase (\*(haW), eof (\*(haD), intr (\*(haC), and quit (\*(ha\e).
+In addition to
+the above, the following characters are also treated specially in insert mode:
+.Bl -tag -width XJXXXXM
+.It \*(haE
+Command and file name enumeration (see below).
+.It \*(haF
+Command and file name completion (see below).
+If used twice in a row, the
+list of possible completions is displayed; if used a third time, the completion
+is undone.
+.It \*(haH
+Erases previous character.
+.It \*(haJ \*(Ba \*(haM
+End of line.
+The current line is read, parsed, and executed by the shell.
+.It \*(haV
+Literal next.
+The next character typed is not treated specially (can be used
+to insert the characters being described here).
+.It \*(haX
+Command and file name expansion (see below).
+.It Aq esc
+Puts the editor in command mode (see below).
+.It Aq tab
+Optional file name and command completion (see
+.Ic \*(haF
+above), enabled with
+.Ic set \-o vi\-tabcomplete .
+.El
+.Pp
+In command mode, each character is interpreted as a command.
+Characters that
+don't correspond to commands, are illegal combinations of commands, or are
+commands that can't be carried out, all cause beeps.
+In the following command descriptions, an
+.Op Ar n
+indicates the command may be prefixed by a number (e.g.\&
+.Ic 10l
+moves right 10 characters); if no number prefix is used,
+.Ar n
+is assumed to be 1 unless otherwise specified.
+The term
+.Dq current position
+refers to the position between the cursor and the character preceding the
+cursor.
+A
+.Dq word
+is a sequence of letters, digits, and underscore characters or a sequence of
+non-letter, non-digit, non-underscore, and non-whitespace characters (e.g.\&
+.Dq ab2*&\*(ha
+contains two words) and a
+.Dq big-word
+is a sequence of non-whitespace characters.
+.Pp
+Special
+.Nm
+vi commands:
+.Pp
+The following commands are not in, or are different from, the normal vi file
+editor:
+.Bl -tag -width 10n
+.It Xo
+.Oo Ar n Oc Ns _
+.Xc
+Insert a space followed by the
+.Ar n Ns th
+big-word from the last command in the history at the current position and enter
+insert mode; if
+.Ar n
+is not specified, the last word is inserted.
+.It #
+Insert the comment character
+.Pq Sq #
+at the start of the current line and return the line to the shell (equivalent
+to
+.Ic I#\*(haJ ) .
+.It Xo
+.Oo Ar n Oc Ns g
+.Xc
+Like
+.Ic G ,
+except if
+.Ar n
+is not specified, it goes to the most recent remembered line.
+.It Xo
+.Oo Ar n Oc Ns v
+.Xc
+Edit line
+.Ar n
+using the
+.Xr vi 1
+editor; if
+.Ar n
+is not specified, the current line is edited.
+The actual command executed is
+.Ic fc \-e ${VISUAL:\-${EDITOR:\-vi}} Ar n .
+.It * and \*(haX
+Command or file name expansion is applied to the current big-word (with an
+appended
+.Ql *
+if the word contains no file globbing characters) \*(en the big-word is replaced
+with the resulting words.
+If the current big-word is the first on the line
+or follows one of the characters
+.Ql \&; ,
+.Ql \*(Ba ,
+.Ql & ,
+.Ql \&( ,
+or
+.Ql \&) ,
+and does not contain a slash
+.Pq Sq / ,
+then command expansion is done; otherwise file name expansion is done.
+Command expansion will match the big-word against all aliases, functions, and
+built-in commands as well as any executable files found by searching the
+directories in the
+.Ev PATH
+parameter.
+File name expansion matches the big-word against the files in the
+current directory.
+After expansion, the cursor is placed just past the last
+word and the editor is in insert mode.
+.It Xo
+.Oo Ar n Oc Ns \e ,
+.Oo Ar n Oc Ns \*(haF ,
+.Oo Ar n Oc Ns Aq tab ,
+.No and
+.Oo Ar n Oc Ns Aq esc
+.Xc
+Command/file name completion.
+Replace the current big-word with the
+longest unique match obtained after performing command and file name expansion.
+.Aq tab
+is only recognised if the
+.Ic vi\-tabcomplete
+option is set, while
+.Aq esc
+is only recognised if the
+.Ic vi\-esccomplete
+option is set (see
+.Ic set \-o ) .
+If
+.Ar n
+is specified, the
+.Ar n Ns th
+possible completion is selected (as reported by the command/file name
+enumeration command).
+.It = and \*(haE
+Command/file name enumeration.
+List all the commands or files that match the current big-word.
+.It \*(haV
+Display the version of
+.Nm mksh .
+The current edit buffer is restored as soon as a key is pressed.
+The restoring keypress is ignored.
+.It @ Ns Ar c
+Macro expansion.
+Execute the commands found in the alias
+.Ar c .
+.El
+.Pp
+Intra-line movement commands:
+.Bl -tag -width Ds
+.It Xo
+.Oo Ar n Oc Ns h and
+.Oo Ar n Oc Ns \*(haH
+.Xc
+Move left
+.Ar n
+characters.
+.It Xo
+.Oo Ar n Oc Ns l and
+.Oo Ar n Oc Ns Aq space
+.Xc
+Move right
+.Ar n
+characters.
+.It 0
+Move to column 0.
+.It \*(ha
+Move to the first non-whitespace character.
+.It Xo
+.Oo Ar n Oc Ns \*(Ba
+.Xc
+Move to column
+.Ar n .
+.It $
+Move to the last character.
+.It Xo
+.Oo Ar n Oc Ns b
+.Xc
+Move back
+.Ar n
+words.
+.It Xo
+.Oo Ar n Oc Ns B
+.Xc
+Move back
+.Ar n
+big-words.
+.It Xo
+.Oo Ar n Oc Ns e
+.Xc
+Move forward to the end of the word,
+.Ar n
+times.
+.It Xo
+.Oo Ar n Oc Ns E
+.Xc
+Move forward to the end of the big-word,
+.Ar n
+times.
+.It Xo
+.Oo Ar n Oc Ns w
+.Xc
+Move forward
+.Ar n
+words.
+.It Xo
+.Oo Ar n Oc Ns W
+.Xc
+Move forward
+.Ar n
+big-words.
+.It %
+Find match.
+The editor looks forward for the nearest parenthesis, bracket, or
+brace and then moves the cursor to the matching parenthesis, bracket, or brace.
+.It Xo
+.Oo Ar n Oc Ns f Ns Ar c
+.Xc
+Move forward to the
+.Ar n Ns th
+occurrence of the character
+.Ar c .
+.It Xo
+.Oo Ar n Oc Ns F Ns Ar c
+.Xc
+Move backward to the
+.Ar n Ns th
+occurrence of the character
+.Ar c .
+.It Xo
+.Oo Ar n Oc Ns t Ns Ar c
+.Xc
+Move forward to just before the
+.Ar n Ns th
+occurrence of the character
+.Ar c .
+.It Xo
+.Oo Ar n Oc Ns T Ns Ar c
+.Xc
+Move backward to just before the
+.Ar n Ns th
+occurrence of the character
+.Ar c .
+.It Xo
+.Oo Ar n Oc Ns \&;
+.Xc
+Repeats the last
+.Ic f , F , t ,
+or
+.Ic T
+command.
+.It Xo
+.Oo Ar n Oc Ns \&,
+.Xc
+Repeats the last
+.Ic f , F , t ,
+or
+.Ic T
+command, but moves in the opposite direction.
+.El
+.Pp
+Inter-line movement commands:
+.Bl -tag -width Ds
+.It Xo
+.Oo Ar n Oc Ns j ,
+.Oo Ar n Oc Ns + ,
+.No and
+.Oo Ar n Oc Ns \*(haN
+.Xc
+Move to the
+.Ar n Ns th
+next line in the history.
+.It Xo
+.Oo Ar n Oc Ns k ,
+.Oo Ar n Oc Ns \- ,
+.No and
+.Oo Ar n Oc Ns \*(haP
+.Xc
+Move to the
+.Ar n Ns th
+previous line in the history.
+.It Xo
+.Oo Ar n Oc Ns G
+.Xc
+Move to line
+.Ar n
+in the history; if
+.Ar n
+is not specified, the number of the first remembered line is used.
+.It Xo
+.Oo Ar n Oc Ns g
+.Xc
+Like
+.Ic G ,
+except if
+.Ar n
+is not specified, it goes to the most recent remembered line.
+.It Xo
+.Oo Ar n Oc Ns / Ns Ar string
+.Xc
+Search backward through the history for the
+.Ar n Ns th
+line containing
+.Ar string ;
+if
+.Ar string
+starts with
+.Ql \*(ha ,
+the remainder of the string must appear at the start of the history line for
+it to match.
+.It Xo
+.Oo Ar n Oc Ns \&? Ns Ar string
+.Xc
+Same as
+.Ic / ,
+except it searches forward through the history.
+.It Xo
+.Oo Ar n Oc Ns n
+.Xc
+Search for the
+.Ar n Ns th
+occurrence of the last search string;
+the direction of the search is the same as the last search.
+.It Xo
+.Oo Ar n Oc Ns N
+.Xc
+Search for the
+.Ar n Ns th
+occurrence of the last search string;
+the direction of the search is the opposite of the last search.
+.It Ar ANSI-CurUp
+Take the characters from the beginning of the line to the current
+cursor position as search string and do a backwards history search
+for lines beginning with this string; keep the cursor position.
+This works only in insert mode and keeps it enabled.
+.El
+.Pp
+Edit commands
+.Bl -tag -width Ds
+.It Xo
+.Oo Ar n Oc Ns a
+.Xc
+Append text
+.Ar n
+times; goes into insert mode just after the current position.
+The append is
+only replicated if command mode is re-entered i.e.\&
+.Aq esc
+is used.
+.It Xo
+.Oo Ar n Oc Ns A
+.Xc
+Same as
+.Ic a ,
+except it appends at the end of the line.
+.It Xo
+.Oo Ar n Oc Ns i
+.Xc
+Insert text
+.Ar n
+times; goes into insert mode at the current position.
+The insertion is only
+replicated if command mode is re-entered i.e.\&
+.Aq esc
+is used.
+.It Xo
+.Oo Ar n Oc Ns I
+.Xc
+Same as
+.Ic i ,
+except the insertion is done just before the first non-blank character.
+.It Xo
+.Oo Ar n Oc Ns s
+.Xc
+Substitute the next
+.Ar n
+characters (i.e. delete the characters and go into insert mode).
+.It S
+Substitute whole line.
+All characters from the first non-blank character to the
+end of the line are deleted and insert mode is entered.
+.It Xo
+.Oo Ar n Oc Ns c Ns Ar move-cmd
+.Xc
+Change from the current position to the position resulting from
+.Ar n move-cmd Ns s
+(i.e. delete the indicated region and go into insert mode); if
+.Ar move-cmd
+is
+.Ic c ,
+the line starting from the first non-blank character is changed.
+.It C
+Change from the current position to the end of the line (i.e. delete to the
+end of the line and go into insert mode).
+.It Xo
+.Oo Ar n Oc Ns x
+.Xc
+Delete the next
+.Ar n
+characters.
+.It Xo
+.Oo Ar n Oc Ns X
+.Xc
+Delete the previous
+.Ar n
+characters.
+.It D
+Delete to the end of the line.
+.It Xo
+.Oo Ar n Oc Ns d Ns Ar move-cmd
+.Xc
+Delete from the current position to the position resulting from
+.Ar n move-cmd Ns s ;
+.Ar move-cmd
+is a movement command (see above) or
+.Ic d ,
+in which case the current line is deleted.
+.It Xo
+.Oo Ar n Oc Ns r Ns Ar c
+.Xc
+Replace the next
+.Ar n
+characters with the character
+.Ar c .
+.It Xo
+.Oo Ar n Oc Ns R
+.Xc
+Replace.
+Enter insert mode but overwrite existing characters instead of
+inserting before existing characters.
+The replacement is repeated
+.Ar n
+times.
+.It Xo
+.Oo Ar n Oc Ns \*(TI
+.Xc
+Change the case of the next
+.Ar n
+characters.
+.It Xo
+.Oo Ar n Oc Ns y Ns Ar move-cmd
+.Xc
+Yank from the current position to the position resulting from
+.Ar n move-cmd Ns s
+into the yank buffer; if
+.Ar move-cmd
+is
+.Ic y ,
+the whole line is yanked.
+.It Y
+Yank from the current position to the end of the line.
+.It Xo
+.Oo Ar n Oc Ns p
+.Xc
+Paste the contents of the yank buffer just after the current position,
+.Ar n
+times.
+.It Xo
+.Oo Ar n Oc Ns P
+.Xc
+Same as
+.Ic p ,
+except the buffer is pasted at the current position.
+.El
+.Pp
+Miscellaneous vi commands
+.Bl -tag -width Ds
+.It \*(haJ and \*(haM
+The current line is read, parsed, and executed by the shell.
+.It \*(haL and \*(haR
+Redraw the current line.
+.It Xo
+.Oo Ar n Oc Ns \&.
+.Xc
+Redo the last edit command
+.Ar n
+times.
+.It u
+Undo the last edit command.
+.It U
+Undo all changes that have been made to the current line.
+.It Ar intr No and Ar quit
+The interrupt and quit terminal characters cause the current line to be
+deleted and a new prompt to be printed.
+.El
+.Sh FILES
+.Bl -tag -width XetcXsuid_profile -compact
+.It Pa \*(TI/.mkshrc
+User mkshrc profile (non-privileged interactive shells); see
+.Sx Startup files.
+The location can be changed at compile time (for embedded systems);
+AOSP Android builds use
+.Pa /system/etc/mkshrc .
+.It Pa \*(TI/.profile
+User profile (non-privileged login shells); see
+.Sx Startup files
+near the top of this manual.
+.It Pa /etc/profile
+System profile (login shells); see
+.Sx Startup files.
+.It Pa /etc/shells
+Shell database.
+.It Pa /etc/suid_profile
+Suid profile (privileged shells); see
+.Sx Startup files.
+.El
+.Pp
+Note: On Android,
+.Pa /system/etc/
+contains the system and suid profile.
+.Sh SEE ALSO
+.Xr awk 1 ,
+.Xr cat 1 ,
+.Xr ed 1 ,
+.Xr getopt 1 ,
+.Xr sed 1 ,
+.Xr sh 1 ,
+.Xr stty 1 ,
+.Xr dup 2 ,
+.Xr execve 2 ,
+.Xr getgid 2 ,
+.Xr getuid 2 ,
+.Xr mknod 2 ,
+.Xr mkfifo 2 ,
+.Xr open 2 ,
+.Xr pipe 2 ,
+.Xr rename 2 ,
+.Xr wait 2 ,
+.Xr getopt 3 ,
+.Xr nl_langinfo 3 ,
+.Xr setlocale 3 ,
+.Xr signal 3 ,
+.Xr system 3 ,
+.Xr tty 4 ,
+.Xr shells 5 ,
+.Xr environ 7 ,
+.Xr script 7 ,
+.Xr utf\-8 7 ,
+.Xr mknod 8
+.Pp
+.Pa http://docsrv.sco.com:507/en/man/html.C/sh.C.html
+.Pp
+.Pa https://www.mirbsd.org/ksh\-chan.htm
+.Rs
+.%A Morris Bolsky
+.%B "The KornShell Command and Programming Language"
+.%D 1989
+.%I "Prentice Hall PTR"
+.%P "xvi\ +\ 356 pages"
+.%O "ISBN 978\-0\-13\-516972\-8 (0\-13\-516972\-0)"
+.Re
+.Rs
+.%A Morris I. Bolsky
+.%A David G. Korn
+.%B "The New KornShell Command and Programming Language (2nd Edition)"
+.%D 1995
+.%I "Prentice Hall PTR"
+.%P "xvi\ +\ 400 pages"
+.%O "ISBN 978\-0\-13\-182700\-4 (0\-13\-182700\-6)"
+.Re
+.Rs
+.%A Stephen G. Kochan
+.%A Patrick H. Wood
+.%B "\\*(tNUNIX\\*(sP Shell Programming"
+.%V "3rd Edition"
+.%D 2003
+.%I "Sams"
+.%P "xiii\ +\ 437 pages"
+.%O "ISBN 978\-0\-672\-32490\-1 (0\-672\-32490\-3)"
+.Re
+.Rs
+.%A "IEEE Inc."
+.%T "\\*(tNIEEE\\*(sP Standard for Information Technology \*(en Portable Operating System Interface (POSIX)"
+.%V "Part 2: Shell and Utilities"
+.%D 1993
+.%I "IEEE Press"
+.%P "xvii\ +\ 1195 pages"
+.%O "ISBN 978\-1\-55937\-255\-8 (1\-55937\-255\-9)"
+.Re
+.Rs
+.%A Bill Rosenblatt
+.%B "Learning the Korn Shell"
+.%D 1993
+.%I "O'Reilly"
+.%P "360 pages"
+.%O "ISBN 978\-1\-56592\-054\-5 (1\-56592\-054\-6)"
+.Re
+.Rs
+.%A Bill Rosenblatt
+.%A Arnold Robbins
+.%B "Learning the Korn Shell, Second Edition"
+.%D 2002
+.%I "O'Reilly"
+.%P "432 pages"
+.%O "ISBN 978\-0\-596\-00195\-7 (0\-596\-00195\-9)"
+.Re
+.Rs
+.%A Barry Rosenberg
+.%B "KornShell Programming Tutorial"
+.%D 1991
+.%I "Addison-Wesley Professional"
+.%P "xxi\ +\ 324 pages"
+.%O "ISBN 978\-0\-201\-56324\-5 (0\-201\-56324\-X)"
+.Re
+.Sh AUTHORS
+.An -nosplit
+.Nm "The MirBSD Korn Shell"
+is developed by
+.An Thorsten Glaser Aq tg at mirbsd.org
+and currently maintained as part of The MirOS Project.
+This shell is based on the public domain 7th edition Bourne shell clone by
+.An Charles Forsyth ,
+who kindly agreed to, in countries where the Public Domain status of the work
+may not be valid, grant a copyright licence to the general public to deal in
+the work without restriction and permission to sublicence derivates under the
+terms of any (OSI approved) Open Source licence,
+and parts of the BRL shell by
+.An Doug A. Gwyn ,
+.An Doug Kingston ,
+.An Ron Natalie ,
+.An Arnold Robbins ,
+.An Lou Salkind ,
+and others.
+The first release of
+.Nm pdksh
+was created by
+.An Eric Gisin ,
+and it was subsequently maintained by
+.An John R. MacMillan Aq Mt change!john at sq.sq.com ,
+.An Simon J. Gerraty Aq Mt sjg at zen.void.oz.au ,
+and
+.An Michael Rendell Aq Mt michael at cs.mun.ca .
+The effort of several projects, such as Debian and OpenBSD, and other
+contributors including our users, to improve the shell is appreciated.
+See the documentation, CVS, and web site for details.
+.Pp
+The BSD daemon is Copyright \(co Marshall Kirk McKusick.
+The complete legalese is at:
+.Pa https://www.mirbsd.org/TaC\-mksh.txt
+.\"
+.\" This boils down to: feel free to use mksh.ico as application icon
+.\" or shortcut for mksh or mksh/Win32; distro patches are ok (but we
+.\" request they amend $KSH_VERSION when modifying mksh). Authors are
+.\" Marshall Kirk McKusick (UCB), Rick Collette (ekkoBSD), Thorsten
+.\" Glaser, Benny Siegert (MirBSD), Michael Langguth (mksh/Win32).
+.\"
+.\" As far as MirBSD is concerned, the files themselves are free
+.\" to modification and distribution under BSD/MirOS Licence, the
+.\" restriction on use stems only from trademark law's requirement
+.\" to protect it or lose it, which McKusick almost did.
+.\"
+.Sh CAVEATS
+.Nm
+only supports the Unicode BMP (Basic Multilingual Plane).
+.Pp
+.Nm
+has a different scope model from
+.At
+.Nm ksh ,
+which leads to subtile differences in semantics for identical builtins.
+This can cause issues with a
+.Ic nameref
+to suddenly point to a local variable by accident; fixing this is hard.
+.Pp
+The parts of a pipeline, like below, are executed in subshells.
+Thus, variable assignments inside them are not visible in the
+surrounding execution environment.
+Use co-processes instead.
+.Bd -literal -offset indent
+foo \*(Ba bar \*(Ba read baz # will not change $baz
+foo \*(Ba bar \*(Ba& read \-p baz # will, however, do so
+.Ed
+.Pp
+.Nm mksh
+provides a consistent set of 32-bit integer arithmetics, both signed
+and unsigned, with defined wraparound and sign of the result of a modulo
+operation, even (defying POSIX) on 64-bit systems.
+If you require 64-bit integer arithmetics, use
+.Nm lksh Pq legacy mksh
+instead, but be aware that, in POSIX, it's legal for the OS to make
+.Li print $((2147483647 + 1))
+delete all files on your system, as it's Undefined Behaviour.
+.Sh BUGS
+Suspending (using \*(haZ) pipelines like the one below will only suspend
+the currently running part of the pipeline; in this example,
+.Dq fubar
+is immediately printed on suspension (but not later after an
+.Ic fg ) .
+.Bd -literal -offset indent
+$ /bin/sleep 666 && echo fubar
+.Ed
+.Pp
+This document attempts to describe
+.Nm mksh\ R50
+and up,
+compiled without any options impacting functionality, such as
+.Dv MKSH_SMALL ,
+when not called as
+.Pa /bin/sh
+which, on some systems only, enables
+.Ic set \-o sh
+automatically (whose behaviour differs across targets),
+for an operating environment supporting all of its advanced needs.
+Please report bugs in
+.Nm
+to the
+.Mx
+mailing list at
+.Aq miros\-mksh at mirbsd.org
+or in the
+.Li \&#\&!/bin/mksh
+.Pq or Li \&#ksh
+IRC channel at
+.Pa irc.freenode.net
+.Pq Port 6697 SSL, 6667 unencrypted ,
+or at:
+.Pa https://launchpad.net/mksh
Copied: vendor/MirOS/mksh/R50/rlimits.opt (from rev 6707, vendor/MirOS/mksh/dist/rlimits.opt)
===================================================================
--- vendor/MirOS/mksh/R50/rlimits.opt (rev 0)
+++ vendor/MirOS/mksh/R50/rlimits.opt 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,96 @@
+ at RLIMITS_DEFNS
+__RCSID("$MirOS: src/bin/mksh/rlimits.opt,v 1.1 2013/11/17 22:21:18 tg Exp $");
+struct limits {
+ /* limit resource */
+ int resource;
+ /* multiply by to get rlim_{cur,max} values */
+ unsigned int factor;
+ /* getopts char */
+ char optchar;
+ /* limit name */
+ char name[1];
+};
+#define FN(lname,lid,lfac,lopt) static const struct { int resource; unsigned int factor; char optchar; char name[sizeof(lname)]; } rlimits_ ## lid = { lid, lfac, lopt, lname };
+ at RLIMITS_ITEMS
+#define FN(lname,lid,lfac,lopt) (const struct limits *)(&rlimits_ ## lid),
+@@
+
+/* generic options for the ulimit builtin */
+
+<a|
+<H|
+<S|
+
+/* do not use options -H, -S or -a or change the order */
+
+>t|RLIMIT_CPU
+FN("time(cpu-seconds)", RLIMIT_CPU, 1
+
+>f|RLIMIT_FSIZE
+FN("file(blocks)", RLIMIT_FSIZE, 512
+
+>c|RLIMIT_CORE
+FN("coredump(blocks)", RLIMIT_CORE, 512
+
+>d|RLIMIT_DATA
+FN("data(KiB)", RLIMIT_DATA, 1024
+
+>s|RLIMIT_STACK
+FN("stack(KiB)", RLIMIT_STACK, 1024
+
+>l|RLIMIT_MEMLOCK
+FN("lockedmem(KiB)", RLIMIT_MEMLOCK, 1024
+
+>n|RLIMIT_NOFILE
+FN("nofiles(descriptors)", RLIMIT_NOFILE, 1
+
+>p|RLIMIT_NPROC
+FN("processes", RLIMIT_NPROC, 1
+
+>w|RLIMIT_SWAP
+FN("swap(KiB)", RLIMIT_SWAP, 1024
+
+>T|RLIMIT_TIME
+FN("humantime(seconds)", RLIMIT_TIME, 1
+
+>V|RLIMIT_NOVMON
+FN("vnodemonitors", RLIMIT_NOVMON, 1
+
+>i|RLIMIT_SIGPENDING
+FN("sigpending", RLIMIT_SIGPENDING, 1
+
+>q|RLIMIT_MSGQUEUE
+FN("msgqueue(bytes)", RLIMIT_MSGQUEUE, 1
+
+>M|RLIMIT_AIO_MEM
+FN("AIOlockedmem(KiB)", RLIMIT_AIO_MEM, 1024
+
+>O|RLIMIT_AIO_OPS
+FN("AIOoperations", RLIMIT_AIO_OPS, 1
+
+>C|RLIMIT_TCACHE
+FN("cachedthreads", RLIMIT_TCACHE, 1
+
+>B|RLIMIT_SBSIZE
+FN("sockbufsiz(KiB)", RLIMIT_SBSIZE, 1024
+
+>P|RLIMIT_PTHREAD
+FN("threadsperprocess", RLIMIT_PTHREAD, 1
+
+>e|RLIMIT_NICE
+FN("maxnice", RLIMIT_NICE, 1
+
+>r|RLIMIT_RTPRIO
+FN("maxrtprio", RLIMIT_RTPRIO, 1
+
+>m|ULIMIT_M_IS_RSS
+FN("resident-set(KiB)", RLIMIT_RSS, 1024
+>m|ULIMIT_M_IS_VMEM
+FN("memory(KiB)", RLIMIT_VMEM, 1024
+
+>v|ULIMIT_V_IS_VMEM
+FN("virtual-memory(KiB)", RLIMIT_VMEM, 1024
+>v|ULIMIT_V_IS_AS
+FN("address-space(KiB)", RLIMIT_AS, 1024
+
+|RLIMITS_OPTCS
Deleted: vendor/MirOS/mksh/R50/sh.h
===================================================================
--- vendor/MirOS/mksh/dist/sh.h 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/sh.h 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,2079 +0,0 @@
-/* $OpenBSD: sh.h,v 1.31 2012/09/10 01:25:30 tedu Exp $ */
-/* $OpenBSD: shf.h,v 1.6 2005/12/11 18:53:51 deraadt Exp $ */
-/* $OpenBSD: table.h,v 1.8 2012/02/19 07:52:30 otto Exp $ */
-/* $OpenBSD: tree.h,v 1.10 2005/03/28 21:28:22 deraadt Exp $ */
-/* $OpenBSD: expand.h,v 1.6 2005/03/30 17:16:37 deraadt Exp $ */
-/* $OpenBSD: lex.h,v 1.13 2013/03/03 19:11:34 guenther Exp $ */
-/* $OpenBSD: proto.h,v 1.34 2012/06/27 07:17:19 otto Exp $ */
-/* $OpenBSD: c_test.h,v 1.4 2004/12/20 11:34:26 otto Exp $ */
-/* $OpenBSD: tty.h,v 1.5 2004/12/20 11:34:26 otto Exp $ */
-
-/*-
- * Copyright © 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- * 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un‐
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person’s immediate fault when using the work as intended.
- */
-
-#ifdef __dietlibc__
-/* XXX imake style */
-#define _BSD_SOURCE /* live, BSD, live❣ */
-#endif
-
-#if HAVE_SYS_PARAM_H
-#include <sys/param.h>
-#endif
-#include <sys/types.h>
-#if HAVE_BOTH_TIME_H
-#include <sys/time.h>
-#include <time.h>
-#elif HAVE_SYS_TIME_H
-#include <sys/time.h>
-#elif HAVE_TIME_H
-#include <time.h>
-#endif
-#include <sys/ioctl.h>
-#if HAVE_SYS_SYSMACROS_H
-#include <sys/sysmacros.h>
-#endif
-#if HAVE_SYS_MKDEV_H
-#include <sys/mkdev.h>
-#endif
-#if HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-#if HAVE_SYS_RESOURCE_H
-#include <sys/resource.h>
-#endif
-#include <sys/stat.h>
-#include <sys/wait.h>
-#include <dirent.h>
-#include <errno.h>
-#include <fcntl.h>
-#if HAVE_LIBGEN_H
-#include <libgen.h>
-#endif
-#if HAVE_LIBUTIL_H
-#include <libutil.h>
-#endif
-#include <limits.h>
-#if HAVE_PATHS_H
-#include <paths.h>
-#endif
-#include <pwd.h>
-#include <setjmp.h>
-#include <signal.h>
-#include <stdarg.h>
-#include <stddef.h>
-#if HAVE_STDINT_H
-#include <stdint.h>
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#if HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#if HAVE_TERMIOS_H
-#include <termios.h>
-#else
-/* shudder… */
-#include <termio.h>
-#endif
-#ifdef _ISC_UNIX
-/* XXX imake style */
-#include <sys/sioctl.h>
-#endif
-#if HAVE_ULIMIT_H
-#include <ulimit.h>
-#endif
-#include <unistd.h>
-#if HAVE_VALUES_H
-#include <values.h>
-#endif
-
-#undef __attribute__
-#if HAVE_ATTRIBUTE_BOUNDED
-#define MKSH_A_BOUNDED(x,y,z) __attribute__((__bounded__ (x, y, z)))
-#else
-#define MKSH_A_BOUNDED(x,y,z) /* nothing */
-#endif
-#if HAVE_ATTRIBUTE_FORMAT
-#define MKSH_A_FORMAT(x,y,z) __attribute__((__format__ (x, y, z)))
-#else
-#define MKSH_A_FORMAT(x,y,z) /* nothing */
-#endif
-#if HAVE_ATTRIBUTE_NORETURN
-#define MKSH_A_NORETURN __attribute__((__noreturn__))
-#else
-#define MKSH_A_NORETURN /* nothing */
-#endif
-#if HAVE_ATTRIBUTE_UNUSED
-#define MKSH_A_UNUSED __attribute__((__unused__))
-#else
-#define MKSH_A_UNUSED /* nothing */
-#endif
-#if HAVE_ATTRIBUTE_USED
-#define MKSH_A_USED __attribute__((__used__))
-#else
-#define MKSH_A_USED /* nothing */
-#endif
-
-#if defined(MirBSD) && (MirBSD >= 0x09A1) && \
- defined(__ELF__) && defined(__GNUC__) && \
- !defined(__llvm__) && !defined(__NWCC__)
-/*
- * We got usable __IDSTRING __COPYRIGHT __RCSID __SCCSID macros
- * which work for all cases; no need to redefine them using the
- * "portable" macros from below when we might have the "better"
- * gcc+ELF specific macros or other system dependent ones.
- */
-#else
-#undef __IDSTRING
-#undef __IDSTRING_CONCAT
-#undef __IDSTRING_EXPAND
-#undef __COPYRIGHT
-#undef __RCSID
-#undef __SCCSID
-#define __IDSTRING_CONCAT(l,p) __LINTED__ ## l ## _ ## p
-#define __IDSTRING_EXPAND(l,p) __IDSTRING_CONCAT(l,p)
-#ifdef MKSH_DONT_EMIT_IDSTRING
-#define __IDSTRING(prefix, string) /* nothing */
-#else
-#define __IDSTRING(prefix, string) \
- static const char __IDSTRING_EXPAND(__LINE__,prefix) [] \
- MKSH_A_USED = "@(""#)" #prefix ": " string
-#endif
-#define __COPYRIGHT(x) __IDSTRING(copyright,x)
-#define __RCSID(x) __IDSTRING(rcsid,x)
-#define __SCCSID(x) __IDSTRING(sccsid,x)
-#endif
-
-#ifdef EXTERN
-__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.667 2013/08/14 20:26:19 tg Exp $");
-#endif
-#define MKSH_VERSION "R48 2013/08/14"
-
-/* arithmetic types: C implementation */
-#if !HAVE_CAN_INTTYPES
-#if !HAVE_CAN_UCBINTS
-typedef signed int int32_t;
-typedef unsigned int uint32_t;
-#else
-typedef u_int32_t uint32_t;
-#endif
-#endif
-
-/* arithmetic types: shell arithmetics */
-#ifdef MKSH_LEGACY_MODE
-/*
- * POSIX demands these to be the C environment's long type
- */
-typedef long mksh_ari_t;
-typedef unsigned long mksh_uari_t;
-#else
-/*
- * These types are exactly 32 bit wide; signed and unsigned
- * integer wraparound, even across division and modulo, for
- * any shell code using them, is guaranteed.
- */
-typedef int32_t mksh_ari_t;
-typedef uint32_t mksh_uari_t;
-#endif
-
-/* boolean type (no <stdbool.h> deliberately) */
-typedef unsigned char mksh_bool;
-#undef bool
-/* false MUST equal the same 0 as written by static storage initialisation */
-#undef false
-#undef true
-/* access macros for boolean type */
-#define bool mksh_bool
-/* values must have identity mapping between mksh_bool and short */
-#define false 0
-#define true 1
-/* make any-type into bool or short */
-#define tobool(cond) ((cond) ? true : false)
-
-/* char (octet) type: C implementation */
-#if !HAVE_CAN_INT8TYPE
-#if !HAVE_CAN_UCBINT8
-typedef unsigned char uint8_t;
-#else
-typedef u_int8_t uint8_t;
-#endif
-#endif
-
-/* other standard types */
-
-#if !HAVE_RLIM_T
-typedef unsigned long rlim_t;
-#endif
-
-#if !HAVE_SIG_T
-#undef sig_t
-typedef void (*sig_t)(int);
-#endif
-
-#ifdef MKSH_TYPEDEF_SIG_ATOMIC_T
-typedef MKSH_TYPEDEF_SIG_ATOMIC_T sig_atomic_t;
-#endif
-
-#ifdef MKSH_TYPEDEF_SSIZE_T
-typedef MKSH_TYPEDEF_SSIZE_T ssize_t;
-#endif
-
-/* un-do vendor damage */
-
-#undef BAD /* AIX defines that somewhere */
-#undef PRINT /* LynxOS defines that somewhere */
-#undef flock /* SCO UnixWare defines that to flock64 but ENOENT */
-
-
-#ifndef MKSH_INCLUDES_ONLY
-
-/* extra types */
-
-#if !HAVE_GETRUSAGE
-#undef rusage
-#undef RUSAGE_SELF
-#undef RUSAGE_CHILDREN
-#define rusage mksh_rusage
-#define RUSAGE_SELF 0
-#define RUSAGE_CHILDREN -1
-
-struct rusage {
- struct timeval ru_utime;
- struct timeval ru_stime;
-};
-#endif
-
-/* extra macros */
-
-#ifndef timerclear
-#define timerclear(tvp) \
- do { \
- (tvp)->tv_sec = (tvp)->tv_usec = 0; \
- } while (/* CONSTCOND */ 0)
-#endif
-#ifndef timeradd
-#define timeradd(tvp, uvp, vvp) \
- do { \
- (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
- (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
- if ((vvp)->tv_usec >= 1000000) { \
- (vvp)->tv_sec++; \
- (vvp)->tv_usec -= 1000000; \
- } \
- } while (/* CONSTCOND */ 0)
-#endif
-#ifndef timersub
-#define timersub(tvp, uvp, vvp) \
- do { \
- (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
- (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
- if ((vvp)->tv_usec < 0) { \
- (vvp)->tv_sec--; \
- (vvp)->tv_usec += 1000000; \
- } \
- } while (/* CONSTCOND */ 0)
-#endif
-
-#define ksh_isdigit(c) (((c) >= '0') && ((c) <= '9'))
-#define ksh_islower(c) (((c) >= 'a') && ((c) <= 'z'))
-#define ksh_isupper(c) (((c) >= 'A') && ((c) <= 'Z'))
-#define ksh_tolower(c) (((c) >= 'A') && ((c) <= 'Z') ? (c) - 'A' + 'a' : (c))
-#define ksh_toupper(c) (((c) >= 'a') && ((c) <= 'z') ? (c) - 'a' + 'A' : (c))
-#define ksh_isdash(s) (((s) != NULL) && ((s)[0] == '-') && ((s)[1] == '\0'))
-#define ksh_isspace(c) ((((c) >= 0x09) && ((c) <= 0x0D)) || ((c) == 0x20))
-#define ksh_min(x,y) ((x) < (y) ? (x) : (y))
-#define ksh_max(x,y) ((x) > (y) ? (x) : (y))
-
-#ifdef MKSH__NO_PATH_MAX
-#undef PATH_MAX
-#else
-#ifndef PATH_MAX
-#define PATH_MAX 1024
-#endif
-#endif
-#ifndef SIZE_MAX
-#ifdef SIZE_T_MAX
-#define SIZE_MAX SIZE_T_MAX
-#else
-#define SIZE_MAX ((size_t)-1)
-#endif
-#endif
-#ifndef S_ISLNK
-#define S_ISLNK(m) ((m & 0170000) == 0120000)
-#endif
-#ifndef S_ISSOCK
-#define S_ISSOCK(m) ((m & 0170000) == 0140000)
-#endif
-#if !defined(S_ISCDF) && defined(S_CDF)
-#define S_ISCDF(m) (S_ISDIR(m) && ((m) & S_CDF))
-#endif
-#ifndef DEFFILEMODE
-#define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
-#endif
-
-#ifndef NSIG
-#if defined(_NSIG)
-#define NSIG _NSIG
-#elif defined(SIGMAX)
-#define NSIG (SIGMAX+1)
-#elif defined(_SIGMAX)
-#define NSIG (_SIGMAX+1)
-#endif
-#endif
-
-
-/* OS-dependent additions (functions, variables, by OS) */
-
-#if !HAVE_FLOCK_DECL
-extern int flock(int, int);
-#endif
-
-#if !HAVE_GETTIMEOFDAY
-#define mksh_TIME(tv) do { \
- (tv).tv_usec = 0; \
- (tv).tv_sec = time(NULL); \
-} while (/* CONSTCOND */ 0)
-#else
-#define mksh_TIME(tv) gettimeofday(&(tv), NULL)
-#endif
-
-#if !HAVE_GETRUSAGE
-extern int getrusage(int, struct rusage *);
-#endif
-
-#if !HAVE_MEMMOVE
-/* we assume either memmove or bcopy exist, at the moment */
-#define memmove(dst, src, len) bcopy((src), (dst), (len))
-#endif
-
-#if !HAVE_REVOKE_DECL
-extern int revoke(const char *);
-#endif
-
-#if defined(DEBUG) || !HAVE_STRERROR
-#undef strerror
-#define strerror /* poisoned */ dontuse_strerror
-#define cstrerror /* replaced */ cstrerror
-extern const char *cstrerror(int);
-#else
-#define cstrerror(errnum) ((const char *)strerror(errnum))
-#endif
-
-#if !HAVE_STRLCPY
-size_t strlcpy(char *, const char *, size_t);
-#endif
-
-#ifdef __INTERIX
-/* XXX imake style */
-#define makedev mkdev
-extern int __cdecl seteuid(uid_t);
-extern int __cdecl setegid(gid_t);
-#endif
-
-#if defined(__COHERENT__)
-#ifndef O_ACCMODE
-/* this need not work everywhere, take care */
-#define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
-#endif
-#endif
-
-#ifdef MKSH__NO_SYMLINK
-#undef S_ISLNK
-#define S_ISLNK(m) (/* CONSTCOND */ 0)
-#define mksh_lstat stat
-#else
-#define mksh_lstat lstat
-#endif
-
-#if HAVE_TERMIOS_H
-#define mksh_ttyst struct termios
-#define mksh_tcget(fd,st) tcgetattr((fd), (st))
-#define mksh_tcset(fd,st) tcsetattr((fd), TCSADRAIN, (st))
-#else
-#define mksh_ttyst struct termio
-#define mksh_tcget(fd,st) ioctl((fd), TCGETA, (st))
-#define mksh_tcset(fd,st) ioctl((fd), TCSETAW, (st))
-#endif
-
-/* remove redundancies */
-
-#if defined(MirBSD) && (MirBSD >= 0x0AB3) && !defined(MKSH_OPTSTATIC)
-#define MKSH_mirbsd_wcwidth
-#define utf_wcwidth(i) wcwidth((__WCHAR_TYPE__)i)
-extern int wcwidth(__WCHAR_TYPE__);
-#endif
-
-
-/* some useful #defines */
-#ifdef EXTERN
-# define E_INIT(i) = i
-#else
-# define E_INIT(i)
-# define EXTERN extern
-# define EXTERN_DEFINED
-#endif
-
-/* define bit in flag */
-#define BIT(i) (1 << (i))
-#define NELEM(a) (sizeof(a) / sizeof((a)[0]))
-
-/*
- * Make MAGIC a char that might be printed to make bugs more obvious, but
- * not a char that is used often. Also, can't use the high bit as it causes
- * portability problems (calling strchr(x, 0x80 | 'x') is error prone).
- */
-#define MAGIC (7) /* prefix for *?[!{,} during expand */
-#define ISMAGIC(c) ((unsigned char)(c) == MAGIC)
-
-EXTERN const char *safe_prompt; /* safe prompt if PS1 substitution fails */
-
-#ifdef MKSH_LEGACY_MODE
-#define KSH_VERSIONNAME "LEGACY"
-#else
-#define KSH_VERSIONNAME "MIRBSD"
-#endif
-EXTERN const char initvsn[] E_INIT("KSH_VERSION=@(#)" KSH_VERSIONNAME \
- " KSH " MKSH_VERSION);
-#define KSH_VERSION (initvsn + /* "KSH_VERSION=@(#)" */ 16)
-
-EXTERN const char digits_uc[] E_INIT("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ");
-EXTERN const char digits_lc[] E_INIT("0123456789abcdefghijklmnopqrstuvwxyz");
-
-/*
- * Evil hack for const correctness due to API brokenness
- */
-union mksh_cchack {
- char *rw;
- const char *ro;
-};
-union mksh_ccphack {
- char **rw;
- const char **ro;
-};
-
-/*
- * Evil hack since casting uint to sint is implementation-defined
- */
-typedef union {
- mksh_ari_t i;
- mksh_uari_t u;
-} mksh_ari_u;
-
-/* for const debugging */
-#if defined(DEBUG) && defined(__GNUC__) && !defined(__ICC) && \
- !defined(__INTEL_COMPILER) && !defined(__SUNPRO_C)
-char *ucstrchr(char *, int);
-char *ucstrstr(char *, const char *);
-#undef strchr
-#define strchr ucstrchr
-#define strstr ucstrstr
-#define cstrchr(s,c) ({ \
- union mksh_cchack in, out; \
- \
- in.ro = (s); \
- out.rw = ucstrchr(in.rw, (c)); \
- (out.ro); \
-})
-#define cstrstr(b,l) ({ \
- union mksh_cchack in, out; \
- \
- in.ro = (b); \
- out.rw = ucstrstr(in.rw, (l)); \
- (out.ro); \
-})
-#define vstrchr(s,c) (cstrchr((s), (c)) != NULL)
-#define vstrstr(b,l) (cstrstr((b), (l)) != NULL)
-#else /* !DEBUG, !gcc */
-#define cstrchr(s,c) ((const char *)strchr((s), (c)))
-#define cstrstr(s,c) ((const char *)strstr((s), (c)))
-#define vstrchr(s,c) (strchr((s), (c)) != NULL)
-#define vstrstr(b,l) (strstr((b), (l)) != NULL)
-#endif
-
-#if defined(DEBUG) || defined(__COVERITY__)
-#define mkssert(e) do { if (!(e)) exit(255); } while (/* CONSTCOND */ 0)
-#ifndef DEBUG_LEAKS
-#define DEBUG_LEAKS
-#endif
-#else
-#define mkssert(e) do { } while (/* CONSTCOND */ 0)
-#endif
-
-#if (!defined(MKSH_BUILDMAKEFILE4BSD) && !defined(MKSH_BUILDSH)) || (MKSH_BUILD_R != 481)
-#error Must run Build.sh to compile this.
-extern void thiswillneverbedefinedIhope(void);
-int
-im_sorry_dave(void)
-{
- /* I’m sorry, Dave. I’m afraid I can’t do that. */
- return (thiswillneverbedefinedIhope());
-}
-#endif
-
-/* use this ipv strchr(s, 0) but no side effects in s! */
-#define strnul(s) ((s) + strlen(s))
-
-#define utf_ptradjx(src, dst) do { \
- (dst) = (src) + utf_ptradj(src); \
-} while (/* CONSTCOND */ 0)
-
-#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
-#define strdupx(d, s, ap) do { \
- (d) = strdup_i((s), (ap)); \
-} while (/* CONSTCOND */ 0)
-#define strndupx(d, s, n, ap) do { \
- (d) = strndup_i((s), (n), (ap)); \
-} while (/* CONSTCOND */ 0)
-#else
-/* be careful to evaluate arguments only once! */
-#define strdupx(d, s, ap) do { \
- const char *strdup_src = (s); \
- char *strdup_dst = NULL; \
- \
- if (strdup_src != NULL) { \
- size_t strdup_len = strlen(strdup_src) + 1; \
- strdup_dst = alloc(strdup_len, (ap)); \
- memcpy(strdup_dst, strdup_src, strdup_len); \
- } \
- (d) = strdup_dst; \
-} while (/* CONSTCOND */ 0)
-#define strndupx(d, s, n, ap) do { \
- const char *strdup_src = (s); \
- char *strdup_dst = NULL; \
- \
- if (strdup_src != NULL) { \
- size_t strndup_len = (n); \
- strdup_dst = alloc(strndup_len + 1, (ap)); \
- memcpy(strdup_dst, strdup_src, strndup_len); \
- strdup_dst[strndup_len] = '\0'; \
- } \
- (d) = strdup_dst; \
-} while (/* CONSTCOND */ 0)
-#endif
-
-#ifdef MKSH_LEGACY_MODE
-#ifndef MKSH_NO_CMDLINE_EDITING
-#define MKSH_NO_CMDLINE_EDITING /* defined */
-#endif
-#ifndef MKSH_CONSERVATIVE_FDS
-#define MKSH_CONSERVATIVE_FDS /* defined */
-#endif
-#undef MKSH_S_NOVI
-#define MKSH_S_NOVI 1
-#endif
-
-#ifdef MKSH_SMALL
-#ifndef MKSH_CONSERVATIVE_FDS
-#define MKSH_CONSERVATIVE_FDS /* defined */
-#endif
-#ifndef MKSH_NOPWNAM
-#define MKSH_NOPWNAM /* defined */
-#endif
-#ifndef MKSH_S_NOVI
-#define MKSH_S_NOVI 1
-#endif
-#endif
-
-#ifndef MKSH_S_NOVI
-#define MKSH_S_NOVI 0
-#endif
-
-#if defined(MKSH_NOPROSPECTOFWORK) && !defined(MKSH_UNEMPLOYED)
-#define MKSH_UNEMPLOYED 1
-#endif
-
-/* these shall be smaller than 100 */
-#ifdef MKSH_CONSERVATIVE_FDS
-#define NUFILE 32 /* Number of user-accessible files */
-#define FDBASE 10 /* First file usable by Shell */
-#else
-#define NUFILE 56 /* Number of user-accessible files */
-#define FDBASE 24 /* First file usable by Shell */
-#endif
-
-/*
- * simple grouping allocator
- */
-
-
-/* 0. OS API: where to get memory from and how to free it (grouped) */
-
-/* malloc(3)/realloc(3) -> free(3) for use by the memory allocator */
-#define malloc_osi(sz) malloc(sz)
-#define realloc_osi(p,sz) realloc((p), (sz))
-#define free_osimalloc(p) free(p)
-
-/* malloc(3)/realloc(3) -> free(3) for use by mksh code */
-#define malloc_osfunc(sz) malloc(sz)
-#define realloc_osfunc(p,sz) realloc((p), (sz))
-#define free_osfunc(p) free(p)
-
-#if HAVE_MKNOD
-/* setmode(3) -> free(3) */
-#define free_ossetmode(p) free(p)
-#endif
-
-#ifdef MKSH__NO_PATH_MAX
-/* GNU libc: get_current_dir_name(3) -> free(3) */
-#define free_gnu_gcdn(p) free(p)
-#endif
-
-
-/* 1. internal structure */
-struct lalloc {
- struct lalloc *next;
-};
-
-/* 2. sizes */
-#define ALLOC_ITEM struct lalloc
-#define ALLOC_SIZE (sizeof(ALLOC_ITEM))
-
-/* 3. group structure (only the same for lalloc.c) */
-typedef struct lalloc Area;
-
-
-EXTERN Area aperm; /* permanent object space */
-#define APERM &aperm
-#define ATEMP &e->area
-
-/*
- * flags (the order of these enums MUST match the order in misc.c(options[]))
- */
-enum sh_flag {
-#define SHFLAGS_ENUMS
-#include "sh_flags.h"
- FNFLAGS /* (place holder: how many flags are there) */
-};
-
-#define Flag(f) (shell_flags[(int)(f)])
-#define UTFMODE Flag(FUNICODE)
-
-/*
- * parsing & execution environment
- *
- * note that kshlongjmp MUST NOT be passed 0 as second argument!
- */
-#ifdef MKSH_NO_SIGSETJMP
-#define kshjmp_buf jmp_buf
-#define kshsetjmp(jbuf) _setjmp(jbuf)
-#define kshlongjmp _longjmp
-#else
-#define kshjmp_buf sigjmp_buf
-#define kshsetjmp(jbuf) sigsetjmp((jbuf), 0)
-#define kshlongjmp siglongjmp
-#endif
-
-struct sretrace_info;
-struct yyrecursive_state;
-
-EXTERN struct sretrace_info *retrace_info E_INIT(NULL);
-EXTERN int subshell_nesting_type E_INIT(0);
-
-extern struct env {
- ALLOC_ITEM alloc_INT; /* internal, do not touch */
- Area area; /* temporary allocation area */
- struct env *oenv; /* link to previous environment */
- struct block *loc; /* local variables and functions */
- short *savefd; /* original redirected fds */
- struct temp *temps; /* temp files */
- /* saved parser recursion state */
- struct yyrecursive_state *yyrecursive_statep;
- kshjmp_buf jbuf; /* long jump back to env creator */
- uint8_t type; /* environment type - see below */
- uint8_t flags; /* EF_* */
-} *e;
-
-/* struct env.type values */
-#define E_NONE 0 /* dummy environment */
-#define E_PARSE 1 /* parsing command # */
-#define E_FUNC 2 /* executing function # */
-#define E_INCL 3 /* including a file via . # */
-#define E_EXEC 4 /* executing command tree */
-#define E_LOOP 5 /* executing for/while # */
-#define E_ERRH 6 /* general error handler # */
-#define E_GONE 7 /* hidden in child */
-/* # indicates env has valid jbuf (see unwind()) */
-
-/* struct env.flag values */
-#define EF_BRKCONT_PASS BIT(1) /* set if E_LOOP must pass break/continue on */
-#define EF_FAKE_SIGDIE BIT(2) /* hack to get info from unwind to quitenv */
-
-/* Do breaks/continues stop at env type e? */
-#define STOP_BRKCONT(t) ((t) == E_NONE || (t) == E_PARSE || \
- (t) == E_FUNC || (t) == E_INCL)
-/* Do returns stop at env type e? */
-#define STOP_RETURN(t) ((t) == E_FUNC || (t) == E_INCL)
-
-/* values for kshlongjmp(e->jbuf, i) */
-/* note that i MUST NOT be zero */
-#define LRETURN 1 /* return statement */
-#define LEXIT 2 /* exit statement */
-#define LERROR 3 /* errorf() called */
-#define LLEAVE 4 /* untrappable exit/error */
-#define LINTR 5 /* ^C noticed */
-#define LBREAK 6 /* break statement */
-#define LCONTIN 7 /* continue statement */
-#define LSHELL 8 /* return to interactive shell() */
-#define LAEXPR 9 /* error in arithmetic expression */
-
-/* sort of shell global state */
-EXTERN pid_t procpid; /* PID of executing process */
-EXTERN int exstat; /* exit status */
-EXTERN int subst_exstat; /* exit status of last $(..)/`..` */
-EXTERN struct tbl *vp_pipest; /* global PIPESTATUS array */
-EXTERN short trap_exstat; /* exit status before running a trap */
-EXTERN uint8_t trap_nested; /* running nested traps */
-EXTERN uint8_t shell_flags[FNFLAGS];
-EXTERN const char *kshname; /* $0 */
-EXTERN struct {
- uid_t kshuid_v; /* real UID of shell */
- uid_t ksheuid_v; /* effective UID of shell */
- gid_t kshgid_v; /* real GID of shell */
- gid_t kshegid_v; /* effective GID of shell */
- pid_t kshpgrp_v; /* process group of shell */
- pid_t kshppid_v; /* PID of parent of shell */
- pid_t kshpid_v; /* $$, shell PID */
-} rndsetupstate;
-
-#define kshpid rndsetupstate.kshpid_v
-#define kshpgrp rndsetupstate.kshpgrp_v
-#define kshuid rndsetupstate.kshuid_v
-#define ksheuid rndsetupstate.ksheuid_v
-#define kshgid rndsetupstate.kshgid_v
-#define kshegid rndsetupstate.kshegid_v
-#define kshppid rndsetupstate.kshppid_v
-
-
-/* option processing */
-#define OF_CMDLINE 0x01 /* command line */
-#define OF_SET 0x02 /* set builtin */
-#define OF_SPECIAL 0x04 /* a special variable changing */
-#define OF_INTERNAL 0x08 /* set internally by shell */
-#define OF_FIRSTTIME 0x10 /* as early as possible, once */
-#define OF_ANY (OF_CMDLINE | OF_SET | OF_SPECIAL | OF_INTERNAL)
-
-/* null value for variable; comparison pointer for unset */
-EXTERN char null[] E_INIT("");
-/* helpers for string pooling */
-EXTERN const char Tintovfl[] E_INIT("integer overflow %zu %c %zu prevented");
-EXTERN const char Toomem[] E_INIT("can't allocate %zu data bytes");
-#if defined(__GNUC__)
-/* trust this to have string pooling; -Wformat bitches otherwise */
-#define Tsynerr "syntax error"
-#else
-EXTERN const char Tsynerr[] E_INIT("syntax error");
-#endif
-EXTERN const char Tselect[] E_INIT("select");
-EXTERN const char Tr_fc_e_dash[] E_INIT("r=fc -e -");
-#define Tfc_e_dash (Tr_fc_e_dash + 2) /* "fc -e -" */
-#define Zfc_e_dash 7 /* strlen(Tfc_e_dash) */
-EXTERN const char Tlocal_typeset[] E_INIT("local=typeset");
-#define T_typeset (Tlocal_typeset + 5) /* "=typeset" */
-#define Ttypeset (Tlocal_typeset + 6) /* "typeset" */
-EXTERN const char Talias[] E_INIT("alias");
-EXTERN const char Tunalias[] E_INIT("unalias");
-EXTERN const char Tsgset[] E_INIT("*=set");
-#define Tset (Tsgset + 2) /* "set" */
-EXTERN const char Tsgunset[] E_INIT("*=unset");
-#define Tunset (Tsgunset + 2) /* "unset" */
-EXTERN const char Tsgexport[] E_INIT("*=export");
-#define Texport (Tsgexport + 2) /* "export" */
-EXTERN const char Tsgreadonly[] E_INIT("*=readonly");
-#define Treadonly (Tsgreadonly + 2) /* "readonly" */
-EXTERN const char Tgbuiltin[] E_INIT("=builtin");
-#define Tbuiltin (Tgbuiltin + 1) /* "builtin" */
-EXTERN const char T_function[] E_INIT(" function");
-#define Tfunction (T_function + 1) /* "function" */
-EXTERN const char TC_LEX1[] E_INIT("|&;<>() \t\n");
-#define TC_IFSWS (TC_LEX1 + 7) /* space tab newline */
-
-typedef uint8_t Temp_type;
-/* expanded heredoc */
-#define TT_HEREDOC_EXP 0
-/* temporary file used for history editing (fc -e) */
-#define TT_HIST_EDIT 1
-/* temporary file used during in-situ command substitution */
-#define TT_FUNSUB 2
-
-/* temp/heredoc files. The file is removed when the struct is freed. */
-struct temp {
- struct temp *next;
- struct shf *shf;
- /* pid of process parsed here-doc */
- pid_t pid;
- Temp_type type;
- /* actually longer: name (variable length) */
- char tffn[3];
-};
-
-/*
- * stdio and our IO routines
- */
-
-#define shl_xtrace (&shf_iob[0]) /* for set -x */
-#define shl_stdout (&shf_iob[1])
-#define shl_out (&shf_iob[2])
-#ifdef DF
-#define shl_dbg (&shf_iob[3]) /* for DF() */
-#endif
-EXTERN bool shl_stdout_ok;
-
-/*
- * trap handlers
- */
-typedef struct trap {
- const char *name; /* short name */
- const char *mess; /* descriptive name */
- char *trap; /* trap command */
- sig_t cursig; /* current handler (valid if TF_ORIG_* set) */
- sig_t shtrap; /* shell signal handler */
- int signal; /* signal number */
- int flags; /* TF_* */
- volatile sig_atomic_t set; /* trap pending */
-} Trap;
-
-/* values for Trap.flags */
-#define TF_SHELL_USES BIT(0) /* shell uses signal, user can't change */
-#define TF_USER_SET BIT(1) /* user has (tried to) set trap */
-#define TF_ORIG_IGN BIT(2) /* original action was SIG_IGN */
-#define TF_ORIG_DFL BIT(3) /* original action was SIG_DFL */
-#define TF_EXEC_IGN BIT(4) /* restore SIG_IGN just before exec */
-#define TF_EXEC_DFL BIT(5) /* restore SIG_DFL just before exec */
-#define TF_DFL_INTR BIT(6) /* when received, default action is LINTR */
-#define TF_TTY_INTR BIT(7) /* tty generated signal (see j_waitj) */
-#define TF_CHANGED BIT(8) /* used by runtrap() to detect trap changes */
-#define TF_FATAL BIT(9) /* causes termination if not trapped */
-
-/* values for setsig()/setexecsig() flags argument */
-#define SS_RESTORE_MASK 0x3 /* how to restore a signal before an exec() */
-#define SS_RESTORE_CURR 0 /* leave current handler in place */
-#define SS_RESTORE_ORIG 1 /* restore original handler */
-#define SS_RESTORE_DFL 2 /* restore to SIG_DFL */
-#define SS_RESTORE_IGN 3 /* restore to SIG_IGN */
-#define SS_FORCE BIT(3) /* set signal even if original signal ignored */
-#define SS_USER BIT(4) /* user is doing the set (ie, trap command) */
-#define SS_SHTRAP BIT(5) /* trap for internal use (ALRM, CHLD, WINCH) */
-
-#define ksh_SIGEXIT 0 /* for trap EXIT */
-#define ksh_SIGERR NSIG /* for trap ERR */
-
-EXTERN volatile sig_atomic_t trap; /* traps pending? */
-EXTERN volatile sig_atomic_t intrsig; /* pending trap interrupts command */
-EXTERN volatile sig_atomic_t fatal_trap; /* received a fatal signal */
-extern Trap sigtraps[NSIG+1];
-
-/* got_winch = 1 when we need to re-adjust the window size */
-#ifdef SIGWINCH
-EXTERN volatile sig_atomic_t got_winch E_INIT(1);
-#else
-#define got_winch true
-#endif
-
-/*
- * TMOUT support
- */
-/* values for ksh_tmout_state */
-enum tmout_enum {
- TMOUT_EXECUTING = 0, /* executing commands */
- TMOUT_READING, /* waiting for input */
- TMOUT_LEAVING /* have timed out */
-};
-EXTERN unsigned int ksh_tmout;
-EXTERN enum tmout_enum ksh_tmout_state E_INIT(TMOUT_EXECUTING);
-
-/* For "You have stopped jobs" message */
-EXTERN bool really_exit;
-
-/*
- * fast character classes
- */
-#define C_ALPHA BIT(0) /* a-z_A-Z */
-#define C_DIGIT BIT(1) /* 0-9 */
-#define C_LEX1 BIT(2) /* \t \n\0|&;<>() */
-#define C_VAR1 BIT(3) /* *@#!$-? */
-#define C_IFSWS BIT(4) /* \t \n (IFS white space) */
-#define C_SUBOP1 BIT(5) /* "=-+?" */
-#define C_QUOTE BIT(6) /* \t\n "#$&'()*;<=>?[\]`| (needing quoting) */
-#define C_IFS BIT(7) /* $IFS */
-#define C_SUBOP2 BIT(8) /* "#%" (magic, see below) */
-
-extern unsigned char chtypes[];
-
-#define ctype(c, t) tobool( ((t) == C_SUBOP2) ? \
- (((c) == '#' || (c) == '%') ? 1 : 0) : \
- (chtypes[(unsigned char)(c)] & (t)) )
-#define ksh_isalphx(c) ctype((c), C_ALPHA)
-#define ksh_isalnux(c) ctype((c), C_ALPHA | C_DIGIT)
-
-EXTERN int ifs0 E_INIT(' '); /* for "$*" */
-
-/* Argument parsing for built-in commands and getopts command */
-
-/* Values for Getopt.flags */
-#define GF_ERROR BIT(0) /* call errorf() if there is an error */
-#define GF_PLUSOPT BIT(1) /* allow +c as an option */
-#define GF_NONAME BIT(2) /* don't print argv[0] in errors */
-
-/* Values for Getopt.info */
-#define GI_MINUS BIT(0) /* an option started with -... */
-#define GI_PLUS BIT(1) /* an option started with +... */
-#define GI_MINUSMINUS BIT(2) /* arguments were ended with -- */
-
-/* in case some OS defines these */
-#undef optarg
-#undef optind
-
-typedef struct {
- const char *optarg;
- int optind;
- int uoptind; /* what user sees in $OPTIND */
- int flags; /* see GF_* */
- int info; /* see GI_* */
- unsigned int p; /* 0 or index into argv[optind - 1] */
- char buf[2]; /* for bad option OPTARG value */
-} Getopt;
-
-EXTERN Getopt builtin_opt; /* for shell builtin commands */
-EXTERN Getopt user_opt; /* parsing state for getopts builtin command */
-
-/* This for co-processes */
-
-/* something that won't (realisticly) wrap */
-typedef int32_t Coproc_id;
-
-struct coproc {
- void *job; /* 0 or job of co-process using input pipe */
- int read; /* pipe from co-process's stdout */
- int readw; /* other side of read (saved temporarily) */
- int write; /* pipe to co-process's stdin */
- int njobs; /* number of live jobs using output pipe */
- Coproc_id id; /* id of current output pipe */
-};
-EXTERN struct coproc coproc;
-
-#ifndef MKSH_NOPROSPECTOFWORK
-/* used in jobs.c and by coprocess stuff in exec.c and select() calls */
-EXTERN sigset_t sm_default, sm_sigchld;
-#endif
-
-/* name of called builtin function (used by error functions) */
-EXTERN const char *builtin_argv0;
-/* flags of called builtin (SPEC_BI, etc.) */
-EXTERN uint32_t builtin_flag;
-
-/* current working directory */
-EXTERN char *current_wd;
-
-/* input line size */
-#define LINE (4096 - ALLOC_SIZE)
-/*
- * Minimum required space to work with on a line - if the prompt leaves
- * less space than this on a line, the prompt is truncated.
- */
-#define MIN_EDIT_SPACE 7
-/*
- * Minimum allowed value for x_cols: 2 for prompt, 3 for " < " at end of line
- */
-#define MIN_COLS (2 + MIN_EDIT_SPACE + 3)
-#define MIN_LINS 3
-EXTERN mksh_ari_t x_cols E_INIT(80); /* tty columns */
-EXTERN mksh_ari_t x_lins E_INIT(24); /* tty lines */
-
-
-/* Determine the location of the system (common) profile */
-
-#ifndef MKSH_DEFAULT_PROFILEDIR
-#if defined(ANDROID)
-#define MKSH_DEFAULT_PROFILEDIR "/system/etc"
-#else
-#define MKSH_DEFAULT_PROFILEDIR "/etc"
-#endif
-#endif
-
-#define MKSH_SYSTEM_PROFILE MKSH_DEFAULT_PROFILEDIR "/profile"
-#define MKSH_SUID_PROFILE MKSH_DEFAULT_PROFILEDIR "/suid_profile"
-
-
-/* Used by v_evaluate() and setstr() to control action when error occurs */
-#define KSH_UNWIND_ERROR 0 /* unwind the stack (kshlongjmp) */
-#define KSH_RETURN_ERROR 1 /* return 1/0 for success/failure */
-
-/*
- * Shell file I/O routines
- */
-
-#define SHF_BSIZE 512
-
-#define shf_fileno(shf) ((shf)->fd)
-#define shf_setfileno(shf,nfd) ((shf)->fd = (nfd))
-#define shf_getc_i(shf) ((shf)->rnleft > 0 ? \
- (shf)->rnleft--, *(shf)->rp++ : \
- shf_getchar(shf))
-#define shf_putc_i(c, shf) ((shf)->wnleft == 0 ? \
- shf_putchar((c), (shf)) : \
- ((shf)->wnleft--, *(shf)->wp++ = (c)))
-#define shf_eof(shf) ((shf)->flags & SHF_EOF)
-#define shf_error(shf) ((shf)->flags & SHF_ERROR)
-#define shf_errno(shf) ((shf)->errnosv)
-#define shf_clearerr(shf) ((shf)->flags &= ~(SHF_EOF | SHF_ERROR))
-
-/* Flags passed to shf_*open() */
-#define SHF_RD 0x0001
-#define SHF_WR 0x0002
-#define SHF_RDWR (SHF_RD|SHF_WR)
-#define SHF_ACCMODE 0x0003 /* mask */
-#define SHF_GETFL 0x0004 /* use fcntl() to figure RD/WR flags */
-#define SHF_UNBUF 0x0008 /* unbuffered I/O */
-#define SHF_CLEXEC 0x0010 /* set close on exec flag */
-#define SHF_MAPHI 0x0020 /* make fd > FDBASE (and close orig)
- * (shf_open() only) */
-#define SHF_DYNAMIC 0x0040 /* string: increase buffer as needed */
-#define SHF_INTERRUPT 0x0080 /* EINTR in read/write causes error */
-/* Flags used internally */
-#define SHF_STRING 0x0100 /* a string, not a file */
-#define SHF_ALLOCS 0x0200 /* shf and shf->buf were alloc()ed */
-#define SHF_ALLOCB 0x0400 /* shf->buf was alloc()ed */
-#define SHF_ERROR 0x0800 /* read()/write() error */
-#define SHF_EOF 0x1000 /* read eof (sticky) */
-#define SHF_READING 0x2000 /* currently reading: rnleft,rp valid */
-#define SHF_WRITING 0x4000 /* currently writing: wnleft,wp valid */
-
-
-struct shf {
- Area *areap; /* area shf/buf were allocated in */
- unsigned char *rp; /* read: current position in buffer */
- unsigned char *wp; /* write: current position in buffer */
- unsigned char *buf; /* buffer */
- ssize_t bsize; /* actual size of buf */
- ssize_t rbsize; /* size of buffer (1 if SHF_UNBUF) */
- ssize_t rnleft; /* read: how much data left in buffer */
- ssize_t wbsize; /* size of buffer (0 if SHF_UNBUF) */
- ssize_t wnleft; /* write: how much space left in buffer */
- int flags; /* see SHF_* */
- int fd; /* file descriptor */
- int errnosv; /* saved value of errno after error */
-};
-
-extern struct shf shf_iob[];
-
-struct table {
- Area *areap; /* area to allocate entries */
- struct tbl **tbls; /* hashed table items */
- size_t nfree; /* free table entries */
- uint8_t tshift; /* table size (2^tshift) */
-};
-
-/* table item */
-struct tbl {
- /* Area to allocate from */
- Area *areap;
- /* value */
- union {
- char *s; /* string */
- mksh_ari_t i; /* integer */
- mksh_uari_t u; /* unsigned integer */
- int (*f)(const char **); /* built-in command */
- struct op *t; /* "function" tree */
- } val;
- union {
- struct tbl *array; /* array values */
- const char *fpath; /* temporary path to undef function */
- } u;
- union {
- int field; /* field with for -L/-R/-Z */
- int errnov; /* CEXEC/CTALIAS */
- } u2;
- union {
- uint32_t hval; /* hash(name) */
- uint32_t index; /* index for an array */
- } ua;
- /*
- * command type (see below), base (if INTEGER),
- * offset from val.s of value (if EXPORT)
- */
- int type;
- /* flags (see below) */
- uint32_t flag;
-
- /* actually longer: name (variable length) */
- char name[4];
-};
-
-EXTERN struct tbl vtemp;
-
-/* common flag bits */
-#define ALLOC BIT(0) /* val.s has been allocated */
-#define DEFINED BIT(1) /* is defined in block */
-#define ISSET BIT(2) /* has value, vp->val.[si] */
-#define EXPORT BIT(3) /* exported variable/function */
-#define TRACE BIT(4) /* var: user flagged, func: execution tracing */
-/* (start non-common flags at 8) */
-/* flag bits used for variables */
-#define SPECIAL BIT(8) /* PATH, IFS, SECONDS, etc */
-#define INTEGER BIT(9) /* val.i contains integer value */
-#define RDONLY BIT(10) /* read-only variable */
-#define LOCAL BIT(11) /* for local typeset() */
-#define ARRAY BIT(13) /* array */
-#define LJUST BIT(14) /* left justify */
-#define RJUST BIT(15) /* right justify */
-#define ZEROFIL BIT(16) /* 0 filled if RJUSTIFY, strip 0s if LJUSTIFY */
-#define LCASEV BIT(17) /* convert to lower case */
-#define UCASEV_AL BIT(18) /* convert to upper case / autoload function */
-#define INT_U BIT(19) /* unsigned integer */
-#define INT_L BIT(20) /* long integer (no-op but used as magic) */
-#define IMPORT BIT(21) /* flag to typeset(): no arrays, must have = */
-#define LOCAL_COPY BIT(22) /* with LOCAL - copy attrs from existing var */
-#define EXPRINEVAL BIT(23) /* contents currently being evaluated */
-#define EXPRLVALUE BIT(24) /* useable as lvalue (temp flag) */
-#define AINDEX BIT(25) /* array index >0 = ua.index filled in */
-#define ASSOC BIT(26) /* ARRAY ? associative : reference */
-/* flag bits used for taliases/builtins/aliases/keywords/functions */
-#define KEEPASN BIT(8) /* keep command assignments (eg, var=x cmd) */
-#define FINUSE BIT(9) /* function being executed */
-#define FDELETE BIT(10) /* function deleted while it was executing */
-#define FKSH BIT(11) /* function defined with function x (vs x()) */
-#define SPEC_BI BIT(12) /* a POSIX special builtin */
-/*
- * Attributes that can be set by the user (used to decide if an unset
- * param should be repoted by set/typeset). Does not include ARRAY or
- * LOCAL.
- */
-#define USERATTRIB (EXPORT|INTEGER|RDONLY|LJUST|RJUST|ZEROFIL|\
- LCASEV|UCASEV_AL|INT_U|INT_L)
-
-#define arrayindex(vp) ((unsigned long)((vp)->flag & AINDEX ? \
- (vp)->ua.index : 0))
-
-EXTERN enum {
- SRF_NOP,
- SRF_ENABLE,
- SRF_DISABLE
-} set_refflag E_INIT(SRF_NOP);
-
-/* command types */
-#define CNONE 0 /* undefined */
-#define CSHELL 1 /* built-in */
-#define CFUNC 2 /* function */
-#define CEXEC 4 /* executable command */
-#define CALIAS 5 /* alias */
-#define CKEYWD 6 /* keyword */
-#define CTALIAS 7 /* tracked alias */
-
-/* Flags for findcom()/comexec() */
-#define FC_SPECBI BIT(0) /* special builtin */
-#define FC_FUNC BIT(1) /* function */
-#define FC_NORMBI BIT(2) /* not special builtin */
-#define FC_BI (FC_SPECBI | FC_NORMBI)
-#define FC_PATH BIT(3) /* do path search */
-#define FC_DEFPATH BIT(4) /* use default path in path search */
-
-
-#define AF_ARGV_ALLOC 0x1 /* argv[] array allocated */
-#define AF_ARGS_ALLOCED 0x2 /* argument strings allocated */
-#define AI_ARGV(a, i) ((i) == 0 ? (a).argv[0] : (a).argv[(i) - (a).skip])
-#define AI_ARGC(a) ((a).ai_argc - (a).skip)
-
-/* Argument info. Used for $#, $* for shell, functions, includes, etc. */
-struct arg_info {
- const char **argv;
- int flags; /* AF_* */
- int ai_argc;
- int skip; /* first arg is argv[0], second is argv[1 + skip] */
-};
-
-/*
- * activation record for function blocks
- */
-struct block {
- Area area; /* area to allocate things */
- const char **argv;
- char *error; /* error handler */
- char *exit; /* exit handler */
- struct block *next; /* enclosing block */
- struct table vars; /* local variables */
- struct table funs; /* local functions */
- Getopt getopts_state;
- int argc;
- int flags; /* see BF_* */
-};
-
-/* Values for struct block.flags */
-#define BF_DOGETOPTS BIT(0) /* save/restore getopts state */
-
-/*
- * Used by ktwalk() and ktnext() routines.
- */
-struct tstate {
- struct tbl **next;
- ssize_t left;
-};
-
-EXTERN struct table taliases; /* tracked aliases */
-EXTERN struct table builtins; /* built-in commands */
-EXTERN struct table aliases; /* aliases */
-EXTERN struct table keywords; /* keywords */
-#ifndef MKSH_NOPWNAM
-EXTERN struct table homedirs; /* homedir() cache */
-#endif
-
-struct builtin {
- const char *name;
- int (*func)(const char **);
-};
-
-extern const struct builtin mkshbuiltins[];
-
-/* values for set_prompt() */
-#define PS1 0 /* command */
-#define PS2 1 /* command continuation */
-
-EXTERN char *path; /* copy of either PATH or def_path */
-EXTERN const char *def_path; /* path to use if PATH not set */
-EXTERN char *tmpdir; /* TMPDIR value */
-EXTERN const char *prompt;
-EXTERN int cur_prompt; /* PS1 or PS2 */
-EXTERN int current_lineno; /* LINENO value */
-
-/*
- * Description of a command or an operation on commands.
- */
-struct op {
- const char **args; /* arguments to a command */
- char **vars; /* variable assignments */
- struct ioword **ioact; /* IO actions (eg, < > >>) */
- struct op *left, *right; /* descendents */
- char *str; /* word for case; identifier for for,
- * select, and functions;
- * path to execute for TEXEC;
- * time hook for TCOM.
- */
- int lineno; /* TCOM/TFUNC: LINENO for this */
- short type; /* operation type, see below */
- /* WARNING: newtp(), tcopy() use evalflags = 0 to clear union */
- union {
- /* TCOM: arg expansion eval() flags */
- short evalflags;
- /* TFUNC: function x (vs x()) */
- short ksh_func;
- /* TPAT: termination character */
- char charflag;
- } u;
-};
-
-/* Tree.type values */
-#define TEOF 0
-#define TCOM 1 /* command */
-#define TPAREN 2 /* (c-list) */
-#define TPIPE 3 /* a | b */
-#define TLIST 4 /* a ; b */
-#define TOR 5 /* || */
-#define TAND 6 /* && */
-#define TBANG 7 /* ! */
-#define TDBRACKET 8 /* [[ .. ]] */
-#define TFOR 9
-#define TSELECT 10
-#define TCASE 11
-#define TIF 12
-#define TWHILE 13
-#define TUNTIL 14
-#define TELIF 15
-#define TPAT 16 /* pattern in case */
-#define TBRACE 17 /* {c-list} */
-#define TASYNC 18 /* c & */
-#define TFUNCT 19 /* function name { command; } */
-#define TTIME 20 /* time pipeline */
-#define TEXEC 21 /* fork/exec eval'd TCOM */
-#define TCOPROC 22 /* coprocess |& */
-
-/*
- * prefix codes for words in command tree
- */
-#define EOS 0 /* end of string */
-#define CHAR 1 /* unquoted character */
-#define QCHAR 2 /* quoted character */
-#define COMSUB 3 /* $() substitution (0 terminated) */
-#define EXPRSUB 4 /* $(()) substitution (0 terminated) */
-#define OQUOTE 5 /* opening " or ' */
-#define CQUOTE 6 /* closing " or ' */
-#define OSUBST 7 /* opening ${ subst (followed by { or X) */
-#define CSUBST 8 /* closing } of above (followed by } or X) */
-#define OPAT 9 /* open pattern: *(, @(, etc. */
-#define SPAT 10 /* separate pattern: | */
-#define CPAT 11 /* close pattern: ) */
-#define ADELIM 12 /* arbitrary delimiter: ${foo:2:3} ${foo/bar/baz} */
-#define FUNSUB 14 /* ${ foo;} substitution (NUL terminated) */
-#define VALSUB 15 /* ${|foo;} substitution (NUL terminated) */
-
-/*
- * IO redirection
- */
-struct ioword {
- int unit; /* unit affected */
- int flag; /* action (below) */
- char *name; /* file name (unused if heredoc) */
- char *delim; /* delimiter for <<,<<- */
- char *heredoc; /* content of heredoc */
-};
-
-/* ioword.flag - type of redirection */
-#define IOTYPE 0xF /* type: bits 0:3 */
-#define IOREAD 0x1 /* < */
-#define IOWRITE 0x2 /* > */
-#define IORDWR 0x3 /* <>: todo */
-#define IOHERE 0x4 /* << (here file) */
-#define IOCAT 0x5 /* >> */
-#define IODUP 0x6 /* <&/>& */
-#define IOEVAL BIT(4) /* expand in << */
-#define IOSKIP BIT(5) /* <<-, skip ^\t* */
-#define IOCLOB BIT(6) /* >|, override -o noclobber */
-#define IORDUP BIT(7) /* x<&y (as opposed to x>&y) */
-#define IONAMEXP BIT(8) /* name has been expanded */
-#define IOBASH BIT(9) /* &> etc. */
-#define IOHERESTR BIT(10) /* <<< (here string) */
-#define IONDELIM BIT(11) /* null delimiter (<<) */
-
-/* execute/exchild flags */
-#define XEXEC BIT(0) /* execute without forking */
-#define XFORK BIT(1) /* fork before executing */
-#define XBGND BIT(2) /* command & */
-#define XPIPEI BIT(3) /* input is pipe */
-#define XPIPEO BIT(4) /* output is pipe */
-#define XXCOM BIT(5) /* `...` command */
-#define XPCLOSE BIT(6) /* exchild: close close_fd in parent */
-#define XCCLOSE BIT(7) /* exchild: close close_fd in child */
-#define XERROK BIT(8) /* non-zero exit ok (for set -e) */
-#define XCOPROC BIT(9) /* starting a co-process */
-#define XTIME BIT(10) /* timing TCOM command */
-#define XPIPEST BIT(11) /* want PIPESTATUS */
-
-/*
- * flags to control expansion of words (assumed by t->evalflags to fit
- * in a short)
- */
-#define DOBLANK BIT(0) /* perform blank interpretation */
-#define DOGLOB BIT(1) /* expand [?* */
-#define DOPAT BIT(2) /* quote *?[ */
-#define DOTILDE BIT(3) /* normal ~ expansion (first char) */
-#define DONTRUNCOMMAND BIT(4) /* do not run $(command) things */
-#define DOASNTILDE BIT(5) /* assignment ~ expansion (after =, :) */
-#define DOBRACE BIT(6) /* used by expand(): do brace expansion */
-#define DOMAGIC BIT(7) /* used by expand(): string contains MAGIC */
-#define DOTEMP BIT(8) /* dito: in word part of ${..[%#=?]..} */
-#define DOVACHECK BIT(9) /* var assign check (for typeset, set, etc) */
-#define DOMARKDIRS BIT(10) /* force markdirs behaviour */
-#if !defined(MKSH_SMALL)
-#define DOTCOMEXEC BIT(11) /* not an eval flag, used by sh -c hack */
-#endif
-
-/*
- * The arguments of [[ .. ]] expressions are kept in t->args[] and flags
- * indicating how the arguments have been munged are kept in t->vars[].
- * The contents of t->vars[] are stuffed strings (so they can be treated
- * like all other t->vars[]) in which the second character is the one that
- * is examined. The DB_* defines are the values for these second characters.
- */
-#define DB_NORM 1 /* normal argument */
-#define DB_OR 2 /* || -> -o conversion */
-#define DB_AND 3 /* && -> -a conversion */
-#define DB_BE 4 /* an inserted -BE */
-#define DB_PAT 5 /* a pattern argument */
-
-#define X_EXTRA 20 /* this many extra bytes in X string */
-
-typedef struct XString {
- char *end, *beg; /* end, begin of string */
- size_t len; /* length */
- Area *areap; /* area to allocate/free from */
-} XString;
-
-typedef char *XStringP;
-
-/* initialise expandable string */
-#define XinitN(xs, length, area) do { \
- (xs).len = (length); \
- (xs).areap = (area); \
- (xs).beg = alloc((xs).len + X_EXTRA, (xs).areap); \
- (xs).end = (xs).beg + (xs).len; \
-} while (/* CONSTCOND */ 0)
-#define Xinit(xs, xp, length, area) do { \
- XinitN((xs), (length), (area)); \
- (xp) = (xs).beg; \
-} while (/* CONSTCOND */ 0)
-
-/* stuff char into string */
-#define Xput(xs, xp, c) (*xp++ = (c))
-
-/* check if there are at least n bytes left */
-#define XcheckN(xs, xp, n) do { \
- ssize_t more = ((xp) + (n)) - (xs).end; \
- if (more > 0) \
- (xp) = Xcheck_grow(&(xs), (xp), more); \
-} while (/* CONSTCOND */ 0)
-
-/* check for overflow, expand string */
-#define Xcheck(xs, xp) XcheckN((xs), (xp), 1)
-
-/* free string */
-#define Xfree(xs, xp) afree((xs).beg, (xs).areap)
-
-/* close, return string */
-#define Xclose(xs, xp) aresize((xs).beg, (xp) - (xs).beg, (xs).areap)
-
-/* begin of string */
-#define Xstring(xs, xp) ((xs).beg)
-
-#define Xnleft(xs, xp) ((xs).end - (xp)) /* may be less than 0 */
-#define Xlength(xs, xp) ((xp) - (xs).beg)
-#define Xsize(xs, xp) ((xs).end - (xs).beg)
-#define Xsavepos(xs, xp) ((xp) - (xs).beg)
-#define Xrestpos(xs, xp, n) ((xs).beg + (n))
-
-char *Xcheck_grow(XString *, const char *, size_t);
-
-/*
- * expandable vector of generic pointers
- */
-
-typedef struct {
- /* begin of allocated area */
- void **beg;
- /* currently used number of entries */
- size_t len;
- /* allocated number of entries */
- size_t siz;
-} XPtrV;
-
-#define XPinit(x, n) do { \
- (x).siz = (n); \
- (x).len = 0; \
- (x).beg = alloc2((x).siz, sizeof(void *), ATEMP); \
-} while (/* CONSTCOND */ 0) \
-
-#define XPput(x, p) do { \
- if ((x).len == (x).siz) { \
- (x).beg = aresize2((x).beg, (x).siz, \
- 2 * sizeof(void *), ATEMP); \
- (x).siz <<= 1; \
- } \
- (x).beg[(x).len++] = (p); \
-} while (/* CONSTCOND */ 0)
-
-#define XPptrv(x) ((x).beg)
-#define XPsize(x) ((x).len)
-#define XPclose(x) aresize2((x).beg, XPsize(x), sizeof(void *), ATEMP)
-#define XPfree(x) afree((x).beg, ATEMP)
-
-/*
- * Lexer internals
- */
-
-typedef struct source Source;
-struct source {
- const char *str; /* input pointer */
- const char *start; /* start of current buffer */
- union {
- const char **strv; /* string [] */
- struct shf *shf; /* shell file */
- struct tbl *tblp; /* alias (SF_HASALIAS) */
- char *freeme; /* also for SREREAD */
- } u;
- const char *file; /* input file name */
- int type; /* input type */
- int line; /* line number */
- int errline; /* line the error occurred on (0 if not set) */
- int flags; /* SF_* */
- Area *areap;
- Source *next; /* stacked source */
- XString xs; /* input buffer */
- char ugbuf[2]; /* buffer for ungetsc() (SREREAD) and
- * alias (SALIAS) */
-};
-
-/* Source.type values */
-#define SEOF 0 /* input EOF */
-#define SFILE 1 /* file input */
-#define SSTDIN 2 /* read stdin */
-#define SSTRING 3 /* string */
-#define SWSTR 4 /* string without \n */
-#define SWORDS 5 /* string[] */
-#define SWORDSEP 6 /* string[] separator */
-#define SALIAS 7 /* alias expansion */
-#define SREREAD 8 /* read ahead to be re-scanned */
-#define SSTRINGCMDLINE 9 /* string from "mksh -c ..." */
-
-/* Source.flags values */
-#define SF_ECHO BIT(0) /* echo input to shlout */
-#define SF_ALIAS BIT(1) /* faking space at end of alias */
-#define SF_ALIASEND BIT(2) /* faking space at end of alias */
-#define SF_TTY BIT(3) /* type == SSTDIN & it is a tty */
-#define SF_HASALIAS BIT(4) /* u.tblp valid (SALIAS, SEOF) */
-#if !defined(MKSH_SMALL)
-#define SF_MAYEXEC BIT(5) /* special sh -c optimisation hack */
-#endif
-
-typedef union {
- int i;
- char *cp;
- char **wp;
- struct op *o;
- struct ioword *iop;
-} YYSTYPE;
-
-/* If something is added here, add it to tokentab[] in syn.c as well */
-#define LWORD 256
-#define LOGAND 257 /* && */
-#define LOGOR 258 /* || */
-#define BREAK 259 /* ;; */
-#define IF 260
-#define THEN 261
-#define ELSE 262
-#define ELIF 263
-#define FI 264
-#define CASE 265
-#define ESAC 266
-#define FOR 267
-#define SELECT 268
-#define WHILE 269
-#define UNTIL 270
-#define DO 271
-#define DONE 272
-#define IN 273
-#define FUNCTION 274
-#define TIME 275
-#define REDIR 276
-#define MDPAREN 277 /* (( )) */
-#define BANG 278 /* ! */
-#define DBRACKET 279 /* [[ .. ]] */
-#define COPROC 280 /* |& */
-#define BRKEV 281 /* ;| */
-#define BRKFT 282 /* ;& */
-#define YYERRCODE 300
-
-/* flags to yylex */
-#define CONTIN BIT(0) /* skip new lines to complete command */
-#define ONEWORD BIT(1) /* single word for substitute() */
-#define ALIAS BIT(2) /* recognise alias */
-#define KEYWORD BIT(3) /* recognise keywords */
-#define LETEXPR BIT(4) /* get expression inside (( )) */
-#define VARASN BIT(5) /* check for var=word */
-#define ARRAYVAR BIT(6) /* parse x[1 & 2] as one word */
-#define ESACONLY BIT(7) /* only accept esac keyword */
-#define CMDWORD BIT(8) /* parsing simple command (alias related) */
-#define HEREDELIM BIT(9) /* parsing <<,<<- delimiter */
-#define LQCHAR BIT(10) /* source string contains QCHAR */
-#define HEREDOC BIT(11) /* parsing a here document body */
-
-#define HERES 10 /* max number of << in line */
-
-#undef CTRL
-#define CTRL(x) ((x) == '?' ? 0x7F : (x) & 0x1F) /* ASCII */
-#define UNCTRL(x) ((x) ^ 0x40) /* ASCII */
-
-#define IDENT 64
-
-EXTERN Source *source; /* yyparse/yylex source */
-EXTERN YYSTYPE yylval; /* result from yylex */
-EXTERN struct ioword *heres[HERES], **herep;
-EXTERN char ident[IDENT + 1];
-
-EXTERN char **history; /* saved commands */
-EXTERN char **histptr; /* last history item */
-EXTERN mksh_ari_t histsize; /* history size */
-
-/* user and system time of last j_waitjed job */
-EXTERN struct timeval j_usrtime, j_systime;
-
-#define notok2mul(max, val, c) (((val) != 0) && ((c) != 0) && \
- (((max) / (c)) < (val)))
-#define notok2add(max, val, c) ((val) > ((max) - (c)))
-#define notoktomul(val, cnst) notok2mul(SIZE_MAX, (val), (cnst))
-#define notoktoadd(val, cnst) notok2add(SIZE_MAX, (val), (cnst))
-#define checkoktoadd(val, cnst) do { \
- if (notoktoadd((val), (cnst))) \
- internal_errorf(Tintovfl, (size_t)(val), \
- '+', (size_t)(cnst)); \
-} while (/* CONSTCOND */ 0)
-
-
-/* NZAAT hash based on Bob Jenkins' one-at-a-time hash */
-
-/* From: src/kern/include/nzat.h,v 1.2 2011/07/18 00:35:40 tg Exp $ */
-
-#define NZATInit(h) do { \
- (h) = 0; \
-} while (/* CONSTCOND */ 0)
-
-#define NZATUpdateByte(h,b) do { \
- (h) += (uint8_t)(b); \
- ++(h); \
- (h) += (h) << 10; \
- (h) ^= (h) >> 6; \
-} while (/* CONSTCOND */ 0)
-
-#define NZATUpdateMem(h,p,z) do { \
- register const uint8_t *NZATUpdateMem_p; \
- register size_t NZATUpdateMem_z = (z); \
- \
- NZATUpdateMem_p = (const void *)(p); \
- while (NZATUpdateMem_z--) \
- NZATUpdateByte((h), *NZATUpdateMem_p++); \
-} while (/* CONSTCOND */ 0)
-
-#define NZATUpdateString(h,s) do { \
- register const char *NZATUpdateString_s; \
- register uint8_t NZATUpdateString_c; \
- \
- NZATUpdateString_s = (const void *)(s); \
- while ((NZATUpdateString_c = *NZATUpdateString_s++)) \
- NZATUpdateByte((h), NZATUpdateString_c); \
-} while (/* CONSTCOND */ 0)
-
-#define NZAATFinish(h) do { \
- (h) += (h) << 10; \
- (h) ^= (h) >> 6; \
- (h) += (h) << 3; \
- (h) ^= (h) >> 11; \
- (h) += (h) << 15; \
-} while (/* CONSTCOND */ 0)
-
-
-/* lalloc.c */
-void ainit(Area *);
-void afreeall(Area *);
-/* these cannot fail and can take NULL (not for ap) */
-#define alloc(n, ap) aresize(NULL, (n), (ap))
-#define alloc2(m, n, ap) aresize2(NULL, (m), (n), (ap))
-void *aresize(void *, size_t, Area *);
-void *aresize2(void *, size_t, size_t, Area *);
-void afree(void *, Area *); /* can take NULL */
-/* edit.c */
-#ifndef MKSH_NO_CMDLINE_EDITING
-#ifndef MKSH_SMALL
-int x_bind(const char *, const char *, bool, bool);
-#else
-int x_bind(const char *, const char *, bool);
-#endif
-void x_init(void);
-#ifdef DEBUG_LEAKS
-void x_done(void);
-#endif
-int x_read(char *);
-#endif
-void x_mkraw(int, mksh_ttyst *, bool);
-/* eval.c */
-char *substitute(const char *, int);
-char **eval(const char **, int);
-char *evalstr(const char *cp, int);
-char *evalonestr(const char *cp, int);
-char *debunk(char *, const char *, size_t);
-void expand(const char *, XPtrV *, int);
-int glob_str(char *, XPtrV *, bool);
-char *tilde(char *);
-/* exec.c */
-int execute(struct op * volatile, volatile int, volatile int * volatile);
-int shcomexec(const char **);
-struct tbl *findfunc(const char *, uint32_t, bool);
-int define(const char *, struct op *);
-const char *builtin(const char *, int (*)(const char **));
-struct tbl *findcom(const char *, int);
-void flushcom(bool);
-const char *search_path(const char *, const char *, int, int *);
-void pr_menu(const char * const *);
-void pr_list(char * const *);
-/* expr.c */
-int evaluate(const char *, mksh_ari_t *, int, bool);
-int v_evaluate(struct tbl *, const char *, volatile int, bool);
-/* UTF-8 stuff */
-size_t utf_mbtowc(unsigned int *, const char *);
-size_t utf_wctomb(char *, unsigned int);
-int utf_widthadj(const char *, const char **);
-size_t utf_mbswidth(const char *);
-const char *utf_skipcols(const char *, int);
-size_t utf_ptradj(const char *);
-#ifndef MKSH_mirbsd_wcwidth
-int utf_wcwidth(unsigned int);
-#endif
-int ksh_access(const char *, int);
-struct tbl *tempvar(void);
-/* funcs.c */
-int c_hash(const char **);
-int c_pwd(const char **);
-int c_print(const char **);
-#ifdef MKSH_PRINTF_BUILTIN
-int c_printf(const char **);
-#endif
-int c_whence(const char **);
-int c_command(const char **);
-int c_typeset(const char **);
-int c_alias(const char **);
-int c_unalias(const char **);
-int c_let(const char **);
-int c_jobs(const char **);
-#ifndef MKSH_UNEMPLOYED
-int c_fgbg(const char **);
-#endif
-int c_kill(const char **);
-void getopts_reset(int);
-int c_getopts(const char **);
-#ifndef MKSH_NO_CMDLINE_EDITING
-int c_bind(const char **);
-#endif
-int c_shift(const char **);
-int c_umask(const char **);
-int c_dot(const char **);
-int c_wait(const char **);
-int c_read(const char **);
-int c_eval(const char **);
-int c_trap(const char **);
-int c_brkcont(const char **);
-int c_exitreturn(const char **);
-int c_set(const char **);
-int c_unset(const char **);
-int c_ulimit(const char **);
-int c_times(const char **);
-int timex(struct op *, int, volatile int *);
-void timex_hook(struct op *, char ** volatile *);
-int c_exec(const char **);
-/* dummy function (just need pointer value), special case in comexec() */
-#define c_builtin shcomexec
-int c_test(const char **);
-#if HAVE_MKNOD
-int c_mknod(const char **);
-#endif
-int c_realpath(const char **);
-int c_rename(const char **);
-int c_cat(const char **);
-int c_sleep(const char **);
-/* histrap.c */
-void init_histvec(void);
-void hist_init(Source *);
-#if HAVE_PERSISTENT_HISTORY
-void hist_finish(void);
-#endif
-void histsave(int *, const char *, bool, bool);
-#if !defined(MKSH_SMALL) && HAVE_PERSISTENT_HISTORY
-bool histsync(void);
-#endif
-int c_fc(const char **);
-void sethistsize(mksh_ari_t);
-#if HAVE_PERSISTENT_HISTORY
-void sethistfile(const char *);
-#endif
-#if !defined(MKSH_NO_CMDLINE_EDITING) && !MKSH_S_NOVI
-char **histpos(void);
-int histnum(int);
-#endif
-int findhist(int, int, const char *, int);
-char **hist_get_newest(bool);
-void inittraps(void);
-void alarm_init(void);
-Trap *gettrap(const char *, bool);
-void trapsig(int);
-void intrcheck(void);
-int fatal_trap_check(void);
-int trap_pending(void);
-void runtraps(int intr);
-void runtrap(Trap *, bool);
-void cleartraps(void);
-void restoresigs(void);
-void settrap(Trap *, const char *);
-int block_pipe(void);
-void restore_pipe(int);
-int setsig(Trap *, sig_t, int);
-void setexecsig(Trap *, int);
-#if HAVE_FLOCK || HAVE_LOCK_FCNTL
-void mksh_lockfd(int);
-void mksh_unlkfd(int);
-#endif
-/* jobs.c */
-void j_init(void);
-void j_exit(void);
-#ifndef MKSH_UNEMPLOYED
-void j_change(void);
-#endif
-int exchild(struct op *, int, volatile int *, int);
-void startlast(void);
-int waitlast(void);
-int waitfor(const char *, int *);
-int j_kill(const char *, int);
-#ifndef MKSH_UNEMPLOYED
-int j_resume(const char *, int);
-#endif
-int j_jobs(const char *, int, int);
-void j_notify(void);
-pid_t j_async(void);
-int j_stopped_running(void);
-/* lex.c */
-int yylex(int);
-void yyskiputf8bom(void);
-void yyerror(const char *, ...)
- MKSH_A_NORETURN
- MKSH_A_FORMAT(__printf__, 1, 2);
-Source *pushs(int, Area *);
-void set_prompt(int, Source *);
-int pprompt(const char *, int);
-/* main.c */
-int include(const char *, int, const char **, bool);
-int command(const char *, int);
-int shell(Source * volatile, volatile bool);
-/* argument MUST NOT be 0 */
-void unwind(int) MKSH_A_NORETURN;
-void newenv(int);
-void quitenv(struct shf *);
-void cleanup_parents_env(void);
-void cleanup_proc_env(void);
-void errorf(const char *, ...)
- MKSH_A_NORETURN
- MKSH_A_FORMAT(__printf__, 1, 2);
-void errorfx(int, const char *, ...)
- MKSH_A_NORETURN
- MKSH_A_FORMAT(__printf__, 2, 3);
-void warningf(bool, const char *, ...)
- MKSH_A_FORMAT(__printf__, 2, 3);
-void bi_errorf(const char *, ...)
- MKSH_A_FORMAT(__printf__, 1, 2);
-#define errorfz() errorf(NULL)
-#define errorfxz(rc) errorfx((rc), NULL)
-#define bi_errorfz() bi_errorf(NULL)
-void internal_errorf(const char *, ...)
- MKSH_A_NORETURN
- MKSH_A_FORMAT(__printf__, 1, 2);
-void internal_warningf(const char *, ...)
- MKSH_A_FORMAT(__printf__, 1, 2);
-void error_prefix(bool);
-void shellf(const char *, ...)
- MKSH_A_FORMAT(__printf__, 1, 2);
-void shprintf(const char *, ...)
- MKSH_A_FORMAT(__printf__, 1, 2);
-int can_seek(int);
-void initio(void);
-int ksh_dup2(int, int, bool);
-short savefd(int);
-void restfd(int, int);
-void openpipe(int *);
-void closepipe(int *);
-int check_fd(const char *, int, const char **);
-void coproc_init(void);
-void coproc_read_close(int);
-void coproc_readw_close(int);
-void coproc_write_close(int);
-int coproc_getfd(int, const char **);
-void coproc_cleanup(int);
-struct temp *maketemp(Area *, Temp_type, struct temp **);
-void ktinit(Area *, struct table *, uint8_t);
-struct tbl *ktscan(struct table *, const char *, uint32_t, struct tbl ***);
-/* table, name (key) to search for, hash(n) */
-#define ktsearch(tp, s, h) ktscan((tp), (s), (h), NULL)
-struct tbl *ktenter(struct table *, const char *, uint32_t);
-#define ktdelete(p) do { p->flag = 0; } while (/* CONSTCOND */ 0)
-void ktwalk(struct tstate *, struct table *);
-struct tbl *ktnext(struct tstate *);
-struct tbl **ktsort(struct table *);
-#ifdef DF
-void DF(const char *, ...)
- MKSH_A_FORMAT(__printf__, 1, 2);
-#endif
-/* misc.c */
-void setctypes(const char *, int);
-void initctypes(void);
-size_t option(const char *);
-char *getoptions(void);
-void change_flag(enum sh_flag, int, bool);
-void change_xtrace(unsigned char, bool);
-int parse_args(const char **, int, bool *);
-int getn(const char *, int *);
-int gmatchx(const char *, const char *, bool);
-int has_globbing(const char *, const char *);
-int xstrcmp(const void *, const void *);
-void ksh_getopt_reset(Getopt *, int);
-int ksh_getopt(const char **, Getopt *, const char *);
-void print_value_quoted(struct shf *, const char *);
-char *quote_value(const char *);
-void print_columns(struct shf *, unsigned int,
- char *(*)(char *, size_t, unsigned int, const void *),
- const void *, size_t, size_t, bool);
-void strip_nuls(char *, int);
-ssize_t blocking_read(int, char *, size_t)
- MKSH_A_BOUNDED(__buffer__, 2, 3);
-int reset_nonblock(int);
-char *ksh_get_wd(void);
-char *do_realpath(const char *);
-void simplify_path(char *);
-void set_current_wd(const char *);
-int c_cd(const char **);
-#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
-char *strdup_i(const char *, Area *);
-char *strndup_i(const char *, size_t, Area *);
-#endif
-int unbksl(bool, int (*)(void), void (*)(int));
-/* shf.c */
-struct shf *shf_open(const char *, int, int, int);
-struct shf *shf_fdopen(int, int, struct shf *);
-struct shf *shf_reopen(int, int, struct shf *);
-struct shf *shf_sopen(char *, ssize_t, int, struct shf *);
-int shf_close(struct shf *);
-int shf_fdclose(struct shf *);
-char *shf_sclose(struct shf *);
-int shf_flush(struct shf *);
-ssize_t shf_read(char *, ssize_t, struct shf *);
-char *shf_getse(char *, ssize_t, struct shf *);
-int shf_getchar(struct shf *s);
-int shf_ungetc(int, struct shf *);
-#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
-int shf_getc(struct shf *);
-int shf_putc(int, struct shf *);
-#else
-#define shf_getc shf_getc_i
-#define shf_putc shf_putc_i
-#endif
-int shf_putchar(int, struct shf *);
-ssize_t shf_puts(const char *, struct shf *);
-ssize_t shf_write(const char *, ssize_t, struct shf *);
-ssize_t shf_fprintf(struct shf *, const char *, ...)
- MKSH_A_FORMAT(__printf__, 2, 3);
-ssize_t shf_snprintf(char *, ssize_t, const char *, ...)
- MKSH_A_FORMAT(__printf__, 3, 4)
- MKSH_A_BOUNDED(__string__, 1, 2);
-char *shf_smprintf(const char *, ...)
- MKSH_A_FORMAT(__printf__, 1, 2);
-ssize_t shf_vfprintf(struct shf *, const char *, va_list)
- MKSH_A_FORMAT(__printf__, 2, 0);
-/* syn.c */
-void initkeywords(void);
-struct op *compile(Source *, bool);
-bool parse_usec(const char *, struct timeval *);
-char *yyrecursive(int);
-void yyrecursive_pop(bool);
-/* tree.c */
-void fptreef(struct shf *, int, const char *, ...);
-char *snptreef(char *, ssize_t, const char *, ...);
-struct op *tcopy(struct op *, Area *);
-char *wdcopy(const char *, Area *);
-const char *wdscan(const char *, int);
-#define WDS_TPUTS BIT(0) /* tputS (dumpwdvar) mode */
-#define WDS_KEEPQ BIT(1) /* keep quote characters */
-#define WDS_MAGIC BIT(2) /* make MAGIC */
-char *wdstrip(const char *, int);
-void tfree(struct op *, Area *);
-void dumpchar(struct shf *, int);
-void dumptree(struct shf *, struct op *);
-void dumpwdvar(struct shf *, const char *);
-void dumpioact(struct shf *shf, struct op *t);
-void vistree(char *, size_t, struct op *)
- MKSH_A_BOUNDED(__string__, 1, 2);
-void fpFUNCTf(struct shf *, int, bool, const char *, struct op *);
-/* var.c */
-void newblock(void);
-void popblock(void);
-void initvar(void);
-struct block *varsearch(struct block *, struct tbl **, const char *, uint32_t);
-struct tbl *global(const char *);
-struct tbl *local(const char *, bool);
-char *str_val(struct tbl *);
-int setstr(struct tbl *, const char *, int);
-struct tbl *setint_v(struct tbl *, struct tbl *, bool);
-void setint(struct tbl *, mksh_ari_t);
-void setint_n(struct tbl *, mksh_ari_t, int);
-struct tbl *typeset(const char *, uint32_t, uint32_t, int, int);
-void unset(struct tbl *, int);
-const char *skip_varname(const char *, int);
-const char *skip_wdvarname(const char *, bool);
-int is_wdvarname(const char *, bool);
-int is_wdvarassign(const char *);
-struct tbl *arraysearch(struct tbl *, uint32_t);
-char **makenv(void);
-void change_winsz(void);
-size_t array_ref_len(const char *);
-char *arrayname(const char *);
-mksh_uari_t set_array(const char *, bool, const char **);
-uint32_t hash(const void *);
-mksh_ari_t rndget(void);
-void rndset(unsigned long);
-
-enum Test_op {
- /* non-operator */
- TO_NONOP = 0,
- /* unary operators */
- TO_STNZE, TO_STZER, TO_OPTION,
- TO_FILAXST,
- TO_FILEXST,
- TO_FILREG, TO_FILBDEV, TO_FILCDEV, TO_FILSYM, TO_FILFIFO, TO_FILSOCK,
- TO_FILCDF, TO_FILID, TO_FILGID, TO_FILSETG, TO_FILSTCK, TO_FILUID,
- TO_FILRD, TO_FILGZ, TO_FILTT, TO_FILSETU, TO_FILWR, TO_FILEX,
- /* binary operators */
- TO_STEQL, TO_STNEQ, TO_STLT, TO_STGT, TO_INTEQ, TO_INTNE, TO_INTGT,
- TO_INTGE, TO_INTLT, TO_INTLE, TO_FILEQ, TO_FILNT, TO_FILOT,
- /* not an operator */
- TO_NONNULL /* !TO_NONOP */
-};
-typedef enum Test_op Test_op;
-
-/* Used by Test_env.isa() (order important - used to index *_tokens[] arrays) */
-enum Test_meta {
- TM_OR, /* -o or || */
- TM_AND, /* -a or && */
- TM_NOT, /* ! */
- TM_OPAREN, /* ( */
- TM_CPAREN, /* ) */
- TM_UNOP, /* unary operator */
- TM_BINOP, /* binary operator */
- TM_END /* end of input */
-};
-typedef enum Test_meta Test_meta;
-
-#define TEF_ERROR BIT(0) /* set if we've hit an error */
-#define TEF_DBRACKET BIT(1) /* set if [[ .. ]] test */
-
-typedef struct test_env {
- union {
- const char **wp; /* used by ptest_* */
- XPtrV *av; /* used by dbtestp_* */
- } pos;
- const char **wp_end; /* used by ptest_* */
- Test_op (*isa)(struct test_env *, Test_meta);
- const char *(*getopnd) (struct test_env *, Test_op, bool);
- int (*eval)(struct test_env *, Test_op, const char *, const char *, bool);
- void (*error)(struct test_env *, int, const char *);
- int flags; /* TEF_* */
-} Test_env;
-
-extern const char * const dbtest_tokens[];
-
-Test_op test_isop(Test_meta, const char *);
-int test_eval(Test_env *, Test_op, const char *, const char *, bool);
-int test_parse(Test_env *);
-
-EXTERN int tty_fd E_INIT(-1); /* dup'd tty file descriptor */
-EXTERN bool tty_devtty; /* true if tty_fd is from /dev/tty */
-EXTERN mksh_ttyst tty_state; /* saved tty state */
-EXTERN bool tty_hasstate; /* true if tty_state is valid */
-
-extern int tty_init_fd(void); /* initialise tty_fd, tty_devtty */
-
-/* be sure not to interfere with anyone else's idea about EXTERN */
-#ifdef EXTERN_DEFINED
-# undef EXTERN_DEFINED
-# undef EXTERN
-#endif
-#undef E_INIT
-
-#endif /* !MKSH_INCLUDES_ONLY */
Copied: vendor/MirOS/mksh/R50/sh.h (from rev 6707, vendor/MirOS/mksh/dist/sh.h)
===================================================================
--- vendor/MirOS/mksh/R50/sh.h (rev 0)
+++ vendor/MirOS/mksh/R50/sh.h 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,2040 @@
+/* $OpenBSD: sh.h,v 1.33 2013/12/18 13:53:12 millert Exp $ */
+/* $OpenBSD: shf.h,v 1.6 2005/12/11 18:53:51 deraadt Exp $ */
+/* $OpenBSD: table.h,v 1.8 2012/02/19 07:52:30 otto Exp $ */
+/* $OpenBSD: tree.h,v 1.10 2005/03/28 21:28:22 deraadt Exp $ */
+/* $OpenBSD: expand.h,v 1.6 2005/03/30 17:16:37 deraadt Exp $ */
+/* $OpenBSD: lex.h,v 1.13 2013/03/03 19:11:34 guenther Exp $ */
+/* $OpenBSD: proto.h,v 1.35 2013/09/04 15:49:19 millert Exp $ */
+/* $OpenBSD: c_test.h,v 1.4 2004/12/20 11:34:26 otto Exp $ */
+/* $OpenBSD: tty.h,v 1.5 2004/12/20 11:34:26 otto Exp $ */
+
+/*-
+ * Copyright © 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un‐
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided “AS IS” and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person’s immediate fault when using the work as intended.
+ */
+
+#ifdef __dietlibc__
+/* XXX imake style */
+#define _BSD_SOURCE /* live, BSD, live❣ */
+#endif
+
+#if HAVE_SYS_PARAM_H
+#include <sys/param.h>
+#endif
+#include <sys/types.h>
+#if HAVE_BOTH_TIME_H
+#include <sys/time.h>
+#include <time.h>
+#elif HAVE_SYS_TIME_H
+#include <sys/time.h>
+#elif HAVE_TIME_H
+#include <time.h>
+#endif
+#include <sys/ioctl.h>
+#if HAVE_SYS_SYSMACROS_H
+#include <sys/sysmacros.h>
+#endif
+#if HAVE_SYS_MKDEV_H
+#include <sys/mkdev.h>
+#endif
+#if HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
+#if HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <dirent.h>
+#include <errno.h>
+#include <fcntl.h>
+#if HAVE_LIBGEN_H
+#include <libgen.h>
+#endif
+#if HAVE_LIBUTIL_H
+#include <libutil.h>
+#endif
+#include <limits.h>
+#if HAVE_PATHS_H
+#include <paths.h>
+#endif
+#include <pwd.h>
+#include <setjmp.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <stddef.h>
+#if HAVE_STDINT_H
+#include <stdint.h>
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#if HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#if HAVE_TERMIOS_H
+#include <termios.h>
+#else
+/* shudder… */
+#include <termio.h>
+#endif
+#ifdef _ISC_UNIX
+/* XXX imake style */
+#include <sys/sioctl.h>
+#endif
+#if HAVE_ULIMIT_H
+#include <ulimit.h>
+#endif
+#include <unistd.h>
+#if HAVE_VALUES_H
+#include <values.h>
+#endif
+
+#undef __attribute__
+#if HAVE_ATTRIBUTE_BOUNDED
+#define MKSH_A_BOUNDED(x,y,z) __attribute__((__bounded__(x, y, z)))
+#else
+#define MKSH_A_BOUNDED(x,y,z) /* nothing */
+#endif
+#if HAVE_ATTRIBUTE_FORMAT
+#define MKSH_A_FORMAT(x,y,z) __attribute__((__format__(x, y, z)))
+#else
+#define MKSH_A_FORMAT(x,y,z) /* nothing */
+#endif
+#if HAVE_ATTRIBUTE_NORETURN
+#define MKSH_A_NORETURN __attribute__((__noreturn__))
+#else
+#define MKSH_A_NORETURN /* nothing */
+#endif
+#if HAVE_ATTRIBUTE_PURE
+#define MKSH_A_PURE __attribute__((__pure__))
+#else
+#define MKSH_A_PURE /* nothing */
+#endif
+#if HAVE_ATTRIBUTE_UNUSED
+#define MKSH_A_UNUSED __attribute__((__unused__))
+#else
+#define MKSH_A_UNUSED /* nothing */
+#endif
+#if HAVE_ATTRIBUTE_USED
+#define MKSH_A_USED __attribute__((__used__))
+#else
+#define MKSH_A_USED /* nothing */
+#endif
+
+#if defined(MirBSD) && (MirBSD >= 0x09A1) && \
+ defined(__ELF__) && defined(__GNUC__) && \
+ !defined(__llvm__) && !defined(__NWCC__)
+/*
+ * We got usable __IDSTRING __COPYRIGHT __RCSID __SCCSID macros
+ * which work for all cases; no need to redefine them using the
+ * "portable" macros from below when we might have the "better"
+ * gcc+ELF specific macros or other system dependent ones.
+ */
+#else
+#undef __IDSTRING
+#undef __IDSTRING_CONCAT
+#undef __IDSTRING_EXPAND
+#undef __COPYRIGHT
+#undef __RCSID
+#undef __SCCSID
+#define __IDSTRING_CONCAT(l,p) __LINTED__ ## l ## _ ## p
+#define __IDSTRING_EXPAND(l,p) __IDSTRING_CONCAT(l,p)
+#ifdef MKSH_DONT_EMIT_IDSTRING
+#define __IDSTRING(prefix, string) /* nothing */
+#else
+#define __IDSTRING(prefix, string) \
+ static const char __IDSTRING_EXPAND(__LINE__,prefix) [] \
+ MKSH_A_USED = "@(""#)" #prefix ": " string
+#endif
+#define __COPYRIGHT(x) __IDSTRING(copyright,x)
+#define __RCSID(x) __IDSTRING(rcsid,x)
+#define __SCCSID(x) __IDSTRING(sccsid,x)
+#endif
+
+#ifdef EXTERN
+__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.691 2014/06/29 11:28:28 tg Exp $");
+#endif
+#define MKSH_VERSION "R50 2014/06/29"
+
+/* arithmetic types: C implementation */
+#if !HAVE_CAN_INTTYPES
+#if !HAVE_CAN_UCBINTS
+typedef signed int int32_t;
+typedef unsigned int uint32_t;
+#else
+typedef u_int32_t uint32_t;
+#endif
+#endif
+
+/* arithmetic types: shell arithmetics */
+#ifdef MKSH_LEGACY_MODE
+/*
+ * POSIX demands these to be the C environment's long type
+ */
+typedef long mksh_ari_t;
+typedef unsigned long mksh_uari_t;
+#else
+/*
+ * These types are exactly 32 bit wide; signed and unsigned
+ * integer wraparound, even across division and modulo, for
+ * any shell code using them, is guaranteed.
+ */
+typedef int32_t mksh_ari_t;
+typedef uint32_t mksh_uari_t;
+#endif
+
+/* boolean type (no <stdbool.h> deliberately) */
+typedef unsigned char mksh_bool;
+#undef bool
+/* false MUST equal the same 0 as written by static storage initialisation */
+#undef false
+#undef true
+/* access macros for boolean type */
+#define bool mksh_bool
+/* values must have identity mapping between mksh_bool and short */
+#define false 0
+#define true 1
+/* make any-type into bool or short */
+#define tobool(cond) ((cond) ? true : false)
+
+/* char (octet) type: C implementation */
+#if !HAVE_CAN_INT8TYPE
+#if !HAVE_CAN_UCBINT8
+typedef unsigned char uint8_t;
+#else
+typedef u_int8_t uint8_t;
+#endif
+#endif
+
+/* other standard types */
+
+#if !HAVE_RLIM_T
+typedef unsigned long rlim_t;
+#endif
+
+#if !HAVE_SIG_T
+#undef sig_t
+typedef void (*sig_t)(int);
+#endif
+
+#ifdef MKSH_TYPEDEF_SIG_ATOMIC_T
+typedef MKSH_TYPEDEF_SIG_ATOMIC_T sig_atomic_t;
+#endif
+
+#ifdef MKSH_TYPEDEF_SSIZE_T
+typedef MKSH_TYPEDEF_SSIZE_T ssize_t;
+#endif
+
+/* un-do vendor damage */
+
+#undef BAD /* AIX defines that somewhere */
+#undef PRINT /* LynxOS defines that somewhere */
+#undef flock /* SCO UnixWare defines that to flock64 but ENOENT */
+
+
+#ifndef MKSH_INCLUDES_ONLY
+
+/* extra types */
+
+#if !HAVE_GETRUSAGE
+#undef rusage
+#undef RUSAGE_SELF
+#undef RUSAGE_CHILDREN
+#define rusage mksh_rusage
+#define RUSAGE_SELF 0
+#define RUSAGE_CHILDREN -1
+
+struct rusage {
+ struct timeval ru_utime;
+ struct timeval ru_stime;
+};
+#endif
+
+/* extra macros */
+
+#ifndef timerclear
+#define timerclear(tvp) \
+ do { \
+ (tvp)->tv_sec = (tvp)->tv_usec = 0; \
+ } while (/* CONSTCOND */ 0)
+#endif
+#ifndef timeradd
+#define timeradd(tvp, uvp, vvp) \
+ do { \
+ (vvp)->tv_sec = (tvp)->tv_sec + (uvp)->tv_sec; \
+ (vvp)->tv_usec = (tvp)->tv_usec + (uvp)->tv_usec; \
+ if ((vvp)->tv_usec >= 1000000) { \
+ (vvp)->tv_sec++; \
+ (vvp)->tv_usec -= 1000000; \
+ } \
+ } while (/* CONSTCOND */ 0)
+#endif
+#ifndef timersub
+#define timersub(tvp, uvp, vvp) \
+ do { \
+ (vvp)->tv_sec = (tvp)->tv_sec - (uvp)->tv_sec; \
+ (vvp)->tv_usec = (tvp)->tv_usec - (uvp)->tv_usec; \
+ if ((vvp)->tv_usec < 0) { \
+ (vvp)->tv_sec--; \
+ (vvp)->tv_usec += 1000000; \
+ } \
+ } while (/* CONSTCOND */ 0)
+#endif
+
+#define ksh_isdigit(c) (((c) >= '0') && ((c) <= '9'))
+#define ksh_islower(c) (((c) >= 'a') && ((c) <= 'z'))
+#define ksh_isupper(c) (((c) >= 'A') && ((c) <= 'Z'))
+#define ksh_tolower(c) (((c) >= 'A') && ((c) <= 'Z') ? (c) - 'A' + 'a' : (c))
+#define ksh_toupper(c) (((c) >= 'a') && ((c) <= 'z') ? (c) - 'a' + 'A' : (c))
+#define ksh_isdash(s) (((s)[0] == '-') && ((s)[1] == '\0'))
+#define ksh_isspace(c) ((((c) >= 0x09) && ((c) <= 0x0D)) || ((c) == 0x20))
+#define ksh_min(x,y) ((x) < (y) ? (x) : (y))
+#define ksh_max(x,y) ((x) > (y) ? (x) : (y))
+
+#ifdef MKSH__NO_PATH_MAX
+#undef PATH_MAX
+#else
+#ifndef PATH_MAX
+#define PATH_MAX 1024
+#endif
+#endif
+#ifndef SIZE_MAX
+#ifdef SIZE_T_MAX
+#define SIZE_MAX SIZE_T_MAX
+#else
+#define SIZE_MAX ((size_t)-1)
+#endif
+#endif
+#ifndef S_ISLNK
+#define S_ISLNK(m) ((m & 0170000) == 0120000)
+#endif
+#ifndef S_ISSOCK
+#define S_ISSOCK(m) ((m & 0170000) == 0140000)
+#endif
+#if !defined(S_ISCDF) && defined(S_CDF)
+#define S_ISCDF(m) (S_ISDIR(m) && ((m) & S_CDF))
+#endif
+#ifndef DEFFILEMODE
+#define DEFFILEMODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)
+#endif
+
+#ifndef NSIG
+#if defined(_NSIG)
+#define NSIG _NSIG
+#elif defined(SIGMAX)
+#define NSIG (SIGMAX+1)
+#elif defined(_SIGMAX)
+#define NSIG (_SIGMAX+1)
+#else
+# error Please have your platform define NSIG.
+#define NSIG 64
+#endif
+#endif
+
+/* get rid of this (and awk/printf(1) in Build.sh) later */
+#if (NSIG < 1)
+# error Your NSIG value is not positive.
+#unset NSIG
+#define NSIG 64
+#endif
+
+
+/* OS-dependent additions (functions, variables, by OS) */
+
+#if !HAVE_FLOCK_DECL
+extern int flock(int, int);
+#endif
+
+#if !HAVE_GETTIMEOFDAY
+#define mksh_TIME(tv) do { \
+ (tv).tv_usec = 0; \
+ (tv).tv_sec = time(NULL); \
+} while (/* CONSTCOND */ 0)
+#else
+#define mksh_TIME(tv) gettimeofday(&(tv), NULL)
+#endif
+
+#if !HAVE_GETRUSAGE
+extern int getrusage(int, struct rusage *);
+#endif
+
+#if !HAVE_MEMMOVE
+/* we assume either memmove or bcopy exist, at the moment */
+#define memmove(dst, src, len) bcopy((src), (dst), (len))
+#endif
+
+#if !HAVE_REVOKE_DECL
+extern int revoke(const char *);
+#endif
+
+#if defined(DEBUG) || !HAVE_STRERROR
+#undef strerror
+#define strerror /* poisoned */ dontuse_strerror
+#define cstrerror /* replaced */ cstrerror
+extern const char *cstrerror(int);
+#else
+#define cstrerror(errnum) ((const char *)strerror(errnum))
+#endif
+
+#if !HAVE_STRLCPY
+size_t strlcpy(char *, const char *, size_t);
+#endif
+
+#ifdef __INTERIX
+/* XXX imake style */
+#define makedev mkdev
+extern int __cdecl seteuid(uid_t);
+extern int __cdecl setegid(gid_t);
+#endif
+
+#if defined(__COHERENT__)
+#ifndef O_ACCMODE
+/* this need not work everywhere, take care */
+#define O_ACCMODE (O_RDONLY | O_WRONLY | O_RDWR)
+#endif
+#endif
+
+#ifndef O_BINARY
+#define O_BINARY 0
+#endif
+
+#ifdef MKSH__NO_SYMLINK
+#undef S_ISLNK
+#define S_ISLNK(m) (/* CONSTCOND */ 0)
+#define mksh_lstat stat
+#else
+#define mksh_lstat lstat
+#endif
+
+#if HAVE_TERMIOS_H
+#define mksh_ttyst struct termios
+#define mksh_tcget(fd,st) tcgetattr((fd), (st))
+#define mksh_tcset(fd,st) tcsetattr((fd), TCSADRAIN, (st))
+#else
+#define mksh_ttyst struct termio
+#define mksh_tcget(fd,st) ioctl((fd), TCGETA, (st))
+#define mksh_tcset(fd,st) ioctl((fd), TCSETAW, (st))
+#endif
+
+#ifndef ISTRIP
+#define ISTRIP 0
+#endif
+
+
+/* some useful #defines */
+#ifdef EXTERN
+# define E_INIT(i) = i
+#else
+# define E_INIT(i)
+# define EXTERN extern
+# define EXTERN_DEFINED
+#endif
+
+/* define bit in flag */
+#define BIT(i) (1 << (i))
+#define NELEM(a) (sizeof(a) / sizeof((a)[0]))
+
+/*
+ * Make MAGIC a char that might be printed to make bugs more obvious, but
+ * not a char that is used often. Also, can't use the high bit as it causes
+ * portability problems (calling strchr(x, 0x80 | 'x') is error prone).
+ */
+#define MAGIC (7) /* prefix for *?[!{,} during expand */
+#define ISMAGIC(c) ((unsigned char)(c) == MAGIC)
+
+EXTERN const char *safe_prompt; /* safe prompt if PS1 substitution fails */
+
+#ifdef MKSH_LEGACY_MODE
+#define KSH_VERSIONNAME "LEGACY"
+#else
+#define KSH_VERSIONNAME "MIRBSD"
+#endif
+EXTERN const char initvsn[] E_INIT("KSH_VERSION=@(#)" KSH_VERSIONNAME \
+ " KSH " MKSH_VERSION);
+#define KSH_VERSION (initvsn + /* "KSH_VERSION=@(#)" */ 16)
+
+EXTERN const char digits_uc[] E_INIT("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ");
+EXTERN const char digits_lc[] E_INIT("0123456789abcdefghijklmnopqrstuvwxyz");
+
+/*
+ * Evil hack for const correctness due to API brokenness
+ */
+union mksh_cchack {
+ char *rw;
+ const char *ro;
+};
+union mksh_ccphack {
+ char **rw;
+ const char **ro;
+};
+
+/*
+ * Evil hack since casting uint to sint is implementation-defined
+ */
+typedef union {
+ mksh_ari_t i;
+ mksh_uari_t u;
+} mksh_ari_u;
+
+/* for const debugging */
+#if defined(DEBUG) && defined(__GNUC__) && !defined(__ICC) && \
+ !defined(__INTEL_COMPILER) && !defined(__SUNPRO_C)
+char *ucstrchr(char *, int);
+char *ucstrstr(char *, const char *);
+#undef strchr
+#define strchr ucstrchr
+#define strstr ucstrstr
+#define cstrchr(s,c) ({ \
+ union mksh_cchack in, out; \
+ \
+ in.ro = (s); \
+ out.rw = ucstrchr(in.rw, (c)); \
+ (out.ro); \
+})
+#define cstrstr(b,l) ({ \
+ union mksh_cchack in, out; \
+ \
+ in.ro = (b); \
+ out.rw = ucstrstr(in.rw, (l)); \
+ (out.ro); \
+})
+#define vstrchr(s,c) (cstrchr((s), (c)) != NULL)
+#define vstrstr(b,l) (cstrstr((b), (l)) != NULL)
+#else /* !DEBUG, !gcc */
+#define cstrchr(s,c) ((const char *)strchr((s), (c)))
+#define cstrstr(s,c) ((const char *)strstr((s), (c)))
+#define vstrchr(s,c) (strchr((s), (c)) != NULL)
+#define vstrstr(b,l) (strstr((b), (l)) != NULL)
+#endif
+
+#if defined(DEBUG) || defined(__COVERITY__)
+#define mkssert(e) do { if (!(e)) exit(255); } while (/* CONSTCOND */ 0)
+#ifndef DEBUG_LEAKS
+#define DEBUG_LEAKS
+#endif
+#else
+#define mkssert(e) do { } while (/* CONSTCOND */ 0)
+#endif
+
+#if (!defined(MKSH_BUILDMAKEFILE4BSD) && !defined(MKSH_BUILDSH)) || (MKSH_BUILD_R != 501)
+#error Must run Build.sh to compile this.
+extern void thiswillneverbedefinedIhope(void);
+int
+im_sorry_dave(void)
+{
+ /* I’m sorry, Dave. I’m afraid I can’t do that. */
+ return (thiswillneverbedefinedIhope());
+}
+#endif
+
+/* use this ipv strchr(s, 0) but no side effects in s! */
+#define strnul(s) ((s) + strlen(s))
+
+#define utf_ptradjx(src, dst) do { \
+ (dst) = (src) + utf_ptradj(src); \
+} while (/* CONSTCOND */ 0)
+
+#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
+#define strdupx(d, s, ap) do { \
+ (d) = strdup_i((s), (ap)); \
+} while (/* CONSTCOND */ 0)
+#define strndupx(d, s, n, ap) do { \
+ (d) = strndup_i((s), (n), (ap)); \
+} while (/* CONSTCOND */ 0)
+#else
+/* be careful to evaluate arguments only once! */
+#define strdupx(d, s, ap) do { \
+ const char *strdup_src = (s); \
+ char *strdup_dst = NULL; \
+ \
+ if (strdup_src != NULL) { \
+ size_t strdup_len = strlen(strdup_src) + 1; \
+ strdup_dst = alloc(strdup_len, (ap)); \
+ memcpy(strdup_dst, strdup_src, strdup_len); \
+ } \
+ (d) = strdup_dst; \
+} while (/* CONSTCOND */ 0)
+#define strndupx(d, s, n, ap) do { \
+ const char *strdup_src = (s); \
+ char *strdup_dst = NULL; \
+ \
+ if (strdup_src != NULL) { \
+ size_t strndup_len = (n); \
+ strdup_dst = alloc(strndup_len + 1, (ap)); \
+ memcpy(strdup_dst, strdup_src, strndup_len); \
+ strdup_dst[strndup_len] = '\0'; \
+ } \
+ (d) = strdup_dst; \
+} while (/* CONSTCOND */ 0)
+#endif
+
+#ifdef MKSH_LEGACY_MODE
+#ifndef MKSH_NO_CMDLINE_EDITING
+#define MKSH_NO_CMDLINE_EDITING /* defined */
+#endif
+#ifndef MKSH_CONSERVATIVE_FDS
+#define MKSH_CONSERVATIVE_FDS /* defined */
+#endif
+#undef MKSH_S_NOVI
+#define MKSH_S_NOVI 1
+#endif
+
+#ifdef MKSH_SMALL
+#ifndef MKSH_CONSERVATIVE_FDS
+#define MKSH_CONSERVATIVE_FDS /* defined */
+#endif
+#ifndef MKSH_NOPWNAM
+#define MKSH_NOPWNAM /* defined */
+#endif
+#ifndef MKSH_S_NOVI
+#define MKSH_S_NOVI 1
+#endif
+#endif
+
+#ifndef MKSH_S_NOVI
+#define MKSH_S_NOVI 0
+#endif
+
+#if defined(MKSH_NOPROSPECTOFWORK) && !defined(MKSH_UNEMPLOYED)
+#define MKSH_UNEMPLOYED 1
+#endif
+
+/* these shall be smaller than 100 */
+#ifdef MKSH_CONSERVATIVE_FDS
+#define NUFILE 32 /* Number of user-accessible files */
+#define FDBASE 10 /* First file usable by Shell */
+#else
+#define NUFILE 56 /* Number of user-accessible files */
+#define FDBASE 24 /* First file usable by Shell */
+#endif
+
+/*
+ * simple grouping allocator
+ */
+
+
+/* 0. OS API: where to get memory from and how to free it (grouped) */
+
+/* malloc(3)/realloc(3) -> free(3) for use by the memory allocator */
+#define malloc_osi(sz) malloc(sz)
+#define realloc_osi(p,sz) realloc((p), (sz))
+#define free_osimalloc(p) free(p)
+
+/* malloc(3)/realloc(3) -> free(3) for use by mksh code */
+#define malloc_osfunc(sz) malloc(sz)
+#define realloc_osfunc(p,sz) realloc((p), (sz))
+#define free_osfunc(p) free(p)
+
+#if HAVE_MKNOD
+/* setmode(3) -> free(3) */
+#define free_ossetmode(p) free(p)
+#endif
+
+#ifdef MKSH__NO_PATH_MAX
+/* GNU libc: get_current_dir_name(3) -> free(3) */
+#define free_gnu_gcdn(p) free(p)
+#endif
+
+
+/* 1. internal structure */
+struct lalloc {
+ struct lalloc *next;
+};
+
+/* 2. sizes */
+#define ALLOC_ITEM struct lalloc
+#define ALLOC_SIZE (sizeof(ALLOC_ITEM))
+
+/* 3. group structure (only the same for lalloc.c) */
+typedef struct lalloc Area;
+
+
+EXTERN Area aperm; /* permanent object space */
+#define APERM &aperm
+#define ATEMP &e->area
+
+/*
+ * flags (the order of these enums MUST match the order in misc.c(options[]))
+ */
+enum sh_flag {
+#define SHFLAGS_ENUMS
+#include "sh_flags.gen"
+ FNFLAGS /* (place holder: how many flags are there) */
+};
+
+#define Flag(f) (shell_flags[(int)(f)])
+#define UTFMODE Flag(FUNICODE)
+
+/*
+ * parsing & execution environment
+ *
+ * note that kshlongjmp MUST NOT be passed 0 as second argument!
+ */
+#ifdef MKSH_NO_SIGSETJMP
+#define kshjmp_buf jmp_buf
+#define kshsetjmp(jbuf) _setjmp(jbuf)
+#define kshlongjmp _longjmp
+#else
+#define kshjmp_buf sigjmp_buf
+#define kshsetjmp(jbuf) sigsetjmp((jbuf), 0)
+#define kshlongjmp siglongjmp
+#endif
+
+struct sretrace_info;
+struct yyrecursive_state;
+
+EXTERN struct sretrace_info *retrace_info E_INIT(NULL);
+EXTERN int subshell_nesting_type E_INIT(0);
+
+extern struct env {
+ ALLOC_ITEM alloc_INT; /* internal, do not touch */
+ Area area; /* temporary allocation area */
+ struct env *oenv; /* link to previous environment */
+ struct block *loc; /* local variables and functions */
+ short *savefd; /* original redirected fds */
+ struct temp *temps; /* temp files */
+ /* saved parser recursion state */
+ struct yyrecursive_state *yyrecursive_statep;
+ kshjmp_buf jbuf; /* long jump back to env creator */
+ uint8_t type; /* environment type - see below */
+ uint8_t flags; /* EF_* */
+} *e;
+
+/* struct env.type values */
+#define E_NONE 0 /* dummy environment */
+#define E_PARSE 1 /* parsing command # */
+#define E_FUNC 2 /* executing function # */
+#define E_INCL 3 /* including a file via . # */
+#define E_EXEC 4 /* executing command tree */
+#define E_LOOP 5 /* executing for/while # */
+#define E_ERRH 6 /* general error handler # */
+#define E_GONE 7 /* hidden in child */
+/* # indicates env has valid jbuf (see unwind()) */
+
+/* struct env.flag values */
+#define EF_BRKCONT_PASS BIT(1) /* set if E_LOOP must pass break/continue on */
+#define EF_FAKE_SIGDIE BIT(2) /* hack to get info from unwind to quitenv */
+
+/* Do breaks/continues stop at env type e? */
+#define STOP_BRKCONT(t) ((t) == E_NONE || (t) == E_PARSE || \
+ (t) == E_FUNC || (t) == E_INCL)
+/* Do returns stop at env type e? */
+#define STOP_RETURN(t) ((t) == E_FUNC || (t) == E_INCL)
+
+/* values for kshlongjmp(e->jbuf, i) */
+/* note that i MUST NOT be zero */
+#define LRETURN 1 /* return statement */
+#define LEXIT 2 /* exit statement */
+#define LERROR 3 /* errorf() called */
+#define LLEAVE 4 /* untrappable exit/error */
+#define LINTR 5 /* ^C noticed */
+#define LBREAK 6 /* break statement */
+#define LCONTIN 7 /* continue statement */
+#define LSHELL 8 /* return to interactive shell() */
+#define LAEXPR 9 /* error in arithmetic expression */
+
+/* sort of shell global state */
+EXTERN pid_t procpid; /* PID of executing process */
+EXTERN int exstat; /* exit status */
+EXTERN int subst_exstat; /* exit status of last $(..)/`..` */
+EXTERN struct tbl *vp_pipest; /* global PIPESTATUS array */
+EXTERN short trap_exstat; /* exit status before running a trap */
+EXTERN uint8_t trap_nested; /* running nested traps */
+EXTERN uint8_t shell_flags[FNFLAGS];
+EXTERN const char *kshname; /* $0 */
+EXTERN struct {
+ uid_t kshuid_v; /* real UID of shell */
+ uid_t ksheuid_v; /* effective UID of shell */
+ gid_t kshgid_v; /* real GID of shell */
+ gid_t kshegid_v; /* effective GID of shell */
+ pid_t kshpgrp_v; /* process group of shell */
+ pid_t kshppid_v; /* PID of parent of shell */
+ pid_t kshpid_v; /* $$, shell PID */
+} rndsetupstate;
+
+#define kshpid rndsetupstate.kshpid_v
+#define kshpgrp rndsetupstate.kshpgrp_v
+#define kshuid rndsetupstate.kshuid_v
+#define ksheuid rndsetupstate.ksheuid_v
+#define kshgid rndsetupstate.kshgid_v
+#define kshegid rndsetupstate.kshegid_v
+#define kshppid rndsetupstate.kshppid_v
+
+
+/* option processing */
+#define OF_CMDLINE 0x01 /* command line */
+#define OF_SET 0x02 /* set builtin */
+#define OF_SPECIAL 0x04 /* a special variable changing */
+#define OF_INTERNAL 0x08 /* set internally by shell */
+#define OF_FIRSTTIME 0x10 /* as early as possible, once */
+#define OF_ANY (OF_CMDLINE | OF_SET | OF_SPECIAL | OF_INTERNAL)
+
+/* null value for variable; comparison pointer for unset */
+EXTERN char null[] E_INIT("");
+/* helpers for string pooling */
+EXTERN const char Tintovfl[] E_INIT("integer overflow %zu %c %zu prevented");
+EXTERN const char Toomem[] E_INIT("can't allocate %zu data bytes");
+#if defined(__GNUC__)
+/* trust this to have string pooling; -Wformat bitches otherwise */
+#define Tsynerr "syntax error"
+#else
+EXTERN const char Tsynerr[] E_INIT("syntax error");
+#endif
+EXTERN const char Tselect[] E_INIT("select");
+EXTERN const char Tr_fc_e_dash[] E_INIT("r=fc -e -");
+#define Tfc_e_dash (Tr_fc_e_dash + 2) /* "fc -e -" */
+#define Zfc_e_dash 7 /* strlen(Tfc_e_dash) */
+EXTERN const char Tlocal_typeset[] E_INIT("local=typeset");
+#define T_typeset (Tlocal_typeset + 5) /* "=typeset" */
+#define Ttypeset (Tlocal_typeset + 6) /* "typeset" */
+EXTERN const char Talias[] E_INIT("alias");
+EXTERN const char Tunalias[] E_INIT("unalias");
+EXTERN const char Tsgset[] E_INIT("*=set");
+#define Tset (Tsgset + 2) /* "set" */
+EXTERN const char Tsgunset[] E_INIT("*=unset");
+#define Tunset (Tsgunset + 2) /* "unset" */
+EXTERN const char Tsgexport[] E_INIT("*=export");
+#define Texport (Tsgexport + 2) /* "export" */
+EXTERN const char Tsgreadonly[] E_INIT("*=readonly");
+#define Treadonly (Tsgreadonly + 2) /* "readonly" */
+EXTERN const char Tgbuiltin[] E_INIT("=builtin");
+#define Tbuiltin (Tgbuiltin + 1) /* "builtin" */
+EXTERN const char T_function[] E_INIT(" function");
+#define Tfunction (T_function + 1) /* "function" */
+EXTERN const char TC_LEX1[] E_INIT("|&;<>() \t\n");
+#define TC_IFSWS (TC_LEX1 + 7) /* space tab newline */
+
+typedef uint8_t Temp_type;
+/* expanded heredoc */
+#define TT_HEREDOC_EXP 0
+/* temporary file used for history editing (fc -e) */
+#define TT_HIST_EDIT 1
+/* temporary file used during in-situ command substitution */
+#define TT_FUNSUB 2
+
+/* temp/heredoc files. The file is removed when the struct is freed. */
+struct temp {
+ struct temp *next;
+ struct shf *shf;
+ /* pid of process parsed here-doc */
+ pid_t pid;
+ Temp_type type;
+ /* actually longer: name (variable length) */
+ char tffn[3];
+};
+
+/*
+ * stdio and our IO routines
+ */
+
+#define shl_xtrace (&shf_iob[0]) /* for set -x */
+#define shl_stdout (&shf_iob[1])
+#define shl_out (&shf_iob[2])
+#ifdef DF
+#define shl_dbg (&shf_iob[3]) /* for DF() */
+#endif
+EXTERN bool shl_stdout_ok;
+
+/*
+ * trap handlers
+ */
+typedef struct trap {
+ const char *name; /* short name */
+ const char *mess; /* descriptive name */
+ char *trap; /* trap command */
+ sig_t cursig; /* current handler (valid if TF_ORIG_* set) */
+ sig_t shtrap; /* shell signal handler */
+ int signal; /* signal number */
+ int flags; /* TF_* */
+ volatile sig_atomic_t set; /* trap pending */
+} Trap;
+
+/* values for Trap.flags */
+#define TF_SHELL_USES BIT(0) /* shell uses signal, user can't change */
+#define TF_USER_SET BIT(1) /* user has (tried to) set trap */
+#define TF_ORIG_IGN BIT(2) /* original action was SIG_IGN */
+#define TF_ORIG_DFL BIT(3) /* original action was SIG_DFL */
+#define TF_EXEC_IGN BIT(4) /* restore SIG_IGN just before exec */
+#define TF_EXEC_DFL BIT(5) /* restore SIG_DFL just before exec */
+#define TF_DFL_INTR BIT(6) /* when received, default action is LINTR */
+#define TF_TTY_INTR BIT(7) /* tty generated signal (see j_waitj) */
+#define TF_CHANGED BIT(8) /* used by runtrap() to detect trap changes */
+#define TF_FATAL BIT(9) /* causes termination if not trapped */
+
+/* values for setsig()/setexecsig() flags argument */
+#define SS_RESTORE_MASK 0x3 /* how to restore a signal before an exec() */
+#define SS_RESTORE_CURR 0 /* leave current handler in place */
+#define SS_RESTORE_ORIG 1 /* restore original handler */
+#define SS_RESTORE_DFL 2 /* restore to SIG_DFL */
+#define SS_RESTORE_IGN 3 /* restore to SIG_IGN */
+#define SS_FORCE BIT(3) /* set signal even if original signal ignored */
+#define SS_USER BIT(4) /* user is doing the set (ie, trap command) */
+#define SS_SHTRAP BIT(5) /* trap for internal use (ALRM, CHLD, WINCH) */
+
+#define ksh_SIGEXIT 0 /* for trap EXIT */
+#define ksh_SIGERR NSIG /* for trap ERR */
+
+EXTERN volatile sig_atomic_t trap; /* traps pending? */
+EXTERN volatile sig_atomic_t intrsig; /* pending trap interrupts command */
+EXTERN volatile sig_atomic_t fatal_trap; /* received a fatal signal */
+extern Trap sigtraps[NSIG+1];
+
+/* got_winch = 1 when we need to re-adjust the window size */
+#ifdef SIGWINCH
+EXTERN volatile sig_atomic_t got_winch E_INIT(1);
+#else
+#define got_winch true
+#endif
+
+/*
+ * TMOUT support
+ */
+/* values for ksh_tmout_state */
+enum tmout_enum {
+ TMOUT_EXECUTING = 0, /* executing commands */
+ TMOUT_READING, /* waiting for input */
+ TMOUT_LEAVING /* have timed out */
+};
+EXTERN unsigned int ksh_tmout;
+EXTERN enum tmout_enum ksh_tmout_state E_INIT(TMOUT_EXECUTING);
+
+/* For "You have stopped jobs" message */
+EXTERN bool really_exit;
+
+/*
+ * fast character classes
+ */
+#define C_ALPHA BIT(0) /* a-z_A-Z */
+#define C_DIGIT BIT(1) /* 0-9 */
+#define C_LEX1 BIT(2) /* \t \n\0|&;<>() */
+#define C_VAR1 BIT(3) /* *@#!$-? */
+#define C_IFSWS BIT(4) /* \t \n (IFS white space) */
+#define C_SUBOP1 BIT(5) /* "=-+?" */
+#define C_QUOTE BIT(6) /* \t\n "#$&'()*;<=>?[\]`| (needing quoting) */
+#define C_IFS BIT(7) /* $IFS */
+#define C_SUBOP2 BIT(8) /* "#%" (magic, see below) */
+
+extern unsigned char chtypes[];
+
+#define ctype(c, t) tobool( ((t) == C_SUBOP2) ? \
+ (((c) == '#' || (c) == '%') ? 1 : 0) : \
+ (chtypes[(unsigned char)(c)] & (t)) )
+#define ksh_isalphx(c) ctype((c), C_ALPHA)
+#define ksh_isalnux(c) ctype((c), C_ALPHA | C_DIGIT)
+
+EXTERN int ifs0 E_INIT(' '); /* for "$*" */
+
+/* Argument parsing for built-in commands and getopts command */
+
+/* Values for Getopt.flags */
+#define GF_ERROR BIT(0) /* call errorf() if there is an error */
+#define GF_PLUSOPT BIT(1) /* allow +c as an option */
+#define GF_NONAME BIT(2) /* don't print argv[0] in errors */
+
+/* Values for Getopt.info */
+#define GI_MINUS BIT(0) /* an option started with -... */
+#define GI_PLUS BIT(1) /* an option started with +... */
+#define GI_MINUSMINUS BIT(2) /* arguments were ended with -- */
+
+/* in case some OS defines these */
+#undef optarg
+#undef optind
+
+typedef struct {
+ const char *optarg;
+ int optind;
+ int uoptind; /* what user sees in $OPTIND */
+ int flags; /* see GF_* */
+ int info; /* see GI_* */
+ unsigned int p; /* 0 or index into argv[optind - 1] */
+ char buf[2]; /* for bad option OPTARG value */
+} Getopt;
+
+EXTERN Getopt builtin_opt; /* for shell builtin commands */
+EXTERN Getopt user_opt; /* parsing state for getopts builtin command */
+
+/* This for co-processes */
+
+/* something that won't (realisticly) wrap */
+typedef int32_t Coproc_id;
+
+struct coproc {
+ void *job; /* 0 or job of co-process using input pipe */
+ int read; /* pipe from co-process's stdout */
+ int readw; /* other side of read (saved temporarily) */
+ int write; /* pipe to co-process's stdin */
+ int njobs; /* number of live jobs using output pipe */
+ Coproc_id id; /* id of current output pipe */
+};
+EXTERN struct coproc coproc;
+
+#ifndef MKSH_NOPROSPECTOFWORK
+/* used in jobs.c and by coprocess stuff in exec.c and select() calls */
+EXTERN sigset_t sm_default, sm_sigchld;
+#endif
+
+/* name of called builtin function (used by error functions) */
+EXTERN const char *builtin_argv0;
+/* flags of called builtin (SPEC_BI, etc.) */
+EXTERN uint32_t builtin_flag;
+
+/* current working directory */
+EXTERN char *current_wd;
+
+/* input line size */
+#define LINE (4096 - ALLOC_SIZE)
+/*
+ * Minimum required space to work with on a line - if the prompt leaves
+ * less space than this on a line, the prompt is truncated.
+ */
+#define MIN_EDIT_SPACE 7
+/*
+ * Minimum allowed value for x_cols: 2 for prompt, 3 for " < " at end of line
+ */
+#define MIN_COLS (2 + MIN_EDIT_SPACE + 3)
+#define MIN_LINS 3
+EXTERN mksh_ari_t x_cols E_INIT(80); /* tty columns */
+EXTERN mksh_ari_t x_lins E_INIT(24); /* tty lines */
+
+
+/* Determine the location of the system (common) profile */
+
+#ifndef MKSH_DEFAULT_PROFILEDIR
+#if defined(ANDROID)
+#define MKSH_DEFAULT_PROFILEDIR "/system/etc"
+#else
+#define MKSH_DEFAULT_PROFILEDIR "/etc"
+#endif
+#endif
+
+#define MKSH_SYSTEM_PROFILE MKSH_DEFAULT_PROFILEDIR "/profile"
+#define MKSH_SUID_PROFILE MKSH_DEFAULT_PROFILEDIR "/suid_profile"
+
+
+/* Used by v_evaluate() and setstr() to control action when error occurs */
+#define KSH_UNWIND_ERROR 0 /* unwind the stack (kshlongjmp) */
+#define KSH_RETURN_ERROR 1 /* return 1/0 for success/failure */
+
+/*
+ * Shell file I/O routines
+ */
+
+#define SHF_BSIZE 512
+
+#define shf_fileno(shf) ((shf)->fd)
+#define shf_setfileno(shf,nfd) ((shf)->fd = (nfd))
+#define shf_getc_i(shf) ((shf)->rnleft > 0 ? \
+ (shf)->rnleft--, *(shf)->rp++ : \
+ shf_getchar(shf))
+#define shf_putc_i(c, shf) ((shf)->wnleft == 0 ? \
+ shf_putchar((c), (shf)) : \
+ ((shf)->wnleft--, *(shf)->wp++ = (c)))
+#define shf_eof(shf) ((shf)->flags & SHF_EOF)
+#define shf_error(shf) ((shf)->flags & SHF_ERROR)
+#define shf_errno(shf) ((shf)->errnosv)
+#define shf_clearerr(shf) ((shf)->flags &= ~(SHF_EOF | SHF_ERROR))
+
+/* Flags passed to shf_*open() */
+#define SHF_RD 0x0001
+#define SHF_WR 0x0002
+#define SHF_RDWR (SHF_RD|SHF_WR)
+#define SHF_ACCMODE 0x0003 /* mask */
+#define SHF_GETFL 0x0004 /* use fcntl() to figure RD/WR flags */
+#define SHF_UNBUF 0x0008 /* unbuffered I/O */
+#define SHF_CLEXEC 0x0010 /* set close on exec flag */
+#define SHF_MAPHI 0x0020 /* make fd > FDBASE (and close orig)
+ * (shf_open() only) */
+#define SHF_DYNAMIC 0x0040 /* string: increase buffer as needed */
+#define SHF_INTERRUPT 0x0080 /* EINTR in read/write causes error */
+/* Flags used internally */
+#define SHF_STRING 0x0100 /* a string, not a file */
+#define SHF_ALLOCS 0x0200 /* shf and shf->buf were alloc()ed */
+#define SHF_ALLOCB 0x0400 /* shf->buf was alloc()ed */
+#define SHF_ERROR 0x0800 /* read()/write() error */
+#define SHF_EOF 0x1000 /* read eof (sticky) */
+#define SHF_READING 0x2000 /* currently reading: rnleft,rp valid */
+#define SHF_WRITING 0x4000 /* currently writing: wnleft,wp valid */
+
+
+struct shf {
+ Area *areap; /* area shf/buf were allocated in */
+ unsigned char *rp; /* read: current position in buffer */
+ unsigned char *wp; /* write: current position in buffer */
+ unsigned char *buf; /* buffer */
+ ssize_t bsize; /* actual size of buf */
+ ssize_t rbsize; /* size of buffer (1 if SHF_UNBUF) */
+ ssize_t rnleft; /* read: how much data left in buffer */
+ ssize_t wbsize; /* size of buffer (0 if SHF_UNBUF) */
+ ssize_t wnleft; /* write: how much space left in buffer */
+ int flags; /* see SHF_* */
+ int fd; /* file descriptor */
+ int errnosv; /* saved value of errno after error */
+};
+
+extern struct shf shf_iob[];
+
+struct table {
+ Area *areap; /* area to allocate entries */
+ struct tbl **tbls; /* hashed table items */
+ size_t nfree; /* free table entries */
+ uint8_t tshift; /* table size (2^tshift) */
+};
+
+/* table item */
+struct tbl {
+ /* Area to allocate from */
+ Area *areap;
+ /* value */
+ union {
+ char *s; /* string */
+ mksh_ari_t i; /* integer */
+ mksh_uari_t u; /* unsigned integer */
+ int (*f)(const char **); /* built-in command */
+ struct op *t; /* "function" tree */
+ } val;
+ union {
+ struct tbl *array; /* array values */
+ const char *fpath; /* temporary path to undef function */
+ } u;
+ union {
+ int field; /* field with for -L/-R/-Z */
+ int errnov; /* CEXEC/CTALIAS */
+ } u2;
+ union {
+ uint32_t hval; /* hash(name) */
+ uint32_t index; /* index for an array */
+ } ua;
+ /*
+ * command type (see below), base (if INTEGER),
+ * offset from val.s of value (if EXPORT)
+ */
+ int type;
+ /* flags (see below) */
+ uint32_t flag;
+
+ /* actually longer: name (variable length) */
+ char name[4];
+};
+
+EXTERN struct tbl vtemp;
+
+/* common flag bits */
+#define ALLOC BIT(0) /* val.s has been allocated */
+#define DEFINED BIT(1) /* is defined in block */
+#define ISSET BIT(2) /* has value, vp->val.[si] */
+#define EXPORT BIT(3) /* exported variable/function */
+#define TRACE BIT(4) /* var: user flagged, func: execution tracing */
+/* (start non-common flags at 8) */
+/* flag bits used for variables */
+#define SPECIAL BIT(8) /* PATH, IFS, SECONDS, etc */
+#define INTEGER BIT(9) /* val.i contains integer value */
+#define RDONLY BIT(10) /* read-only variable */
+#define LOCAL BIT(11) /* for local typeset() */
+#define ARRAY BIT(13) /* array */
+#define LJUST BIT(14) /* left justify */
+#define RJUST BIT(15) /* right justify */
+#define ZEROFIL BIT(16) /* 0 filled if RJUSTIFY, strip 0s if LJUSTIFY */
+#define LCASEV BIT(17) /* convert to lower case */
+#define UCASEV_AL BIT(18) /* convert to upper case / autoload function */
+#define INT_U BIT(19) /* unsigned integer */
+#define INT_L BIT(20) /* long integer (no-op but used as magic) */
+#define IMPORT BIT(21) /* flag to typeset(): no arrays, must have = */
+#define LOCAL_COPY BIT(22) /* with LOCAL - copy attrs from existing var */
+#define EXPRINEVAL BIT(23) /* contents currently being evaluated */
+#define EXPRLVALUE BIT(24) /* useable as lvalue (temp flag) */
+#define AINDEX BIT(25) /* array index >0 = ua.index filled in */
+#define ASSOC BIT(26) /* ARRAY ? associative : reference */
+/* flag bits used for taliases/builtins/aliases/keywords/functions */
+#define KEEPASN BIT(8) /* keep command assignments (eg, var=x cmd) */
+#define FINUSE BIT(9) /* function being executed */
+#define FDELETE BIT(10) /* function deleted while it was executing */
+#define FKSH BIT(11) /* function defined with function x (vs x()) */
+#define SPEC_BI BIT(12) /* a POSIX special builtin */
+/*
+ * Attributes that can be set by the user (used to decide if an unset
+ * param should be repoted by set/typeset). Does not include ARRAY or
+ * LOCAL.
+ */
+#define USERATTRIB (EXPORT|INTEGER|RDONLY|LJUST|RJUST|ZEROFIL|\
+ LCASEV|UCASEV_AL|INT_U|INT_L)
+
+#define arrayindex(vp) ((unsigned long)((vp)->flag & AINDEX ? \
+ (vp)->ua.index : 0))
+
+enum namerefflag {
+ SRF_NOP,
+ SRF_ENABLE,
+ SRF_DISABLE
+};
+
+/* command types */
+#define CNONE 0 /* undefined */
+#define CSHELL 1 /* built-in */
+#define CFUNC 2 /* function */
+#define CEXEC 4 /* executable command */
+#define CALIAS 5 /* alias */
+#define CKEYWD 6 /* keyword */
+#define CTALIAS 7 /* tracked alias */
+
+/* Flags for findcom()/comexec() */
+#define FC_SPECBI BIT(0) /* special builtin */
+#define FC_FUNC BIT(1) /* function */
+#define FC_NORMBI BIT(2) /* not special builtin */
+#define FC_BI (FC_SPECBI | FC_NORMBI)
+#define FC_PATH BIT(3) /* do path search */
+#define FC_DEFPATH BIT(4) /* use default path in path search */
+
+
+#define AF_ARGV_ALLOC 0x1 /* argv[] array allocated */
+#define AF_ARGS_ALLOCED 0x2 /* argument strings allocated */
+#define AI_ARGV(a, i) ((i) == 0 ? (a).argv[0] : (a).argv[(i) - (a).skip])
+#define AI_ARGC(a) ((a).ai_argc - (a).skip)
+
+/* Argument info. Used for $#, $* for shell, functions, includes, etc. */
+struct arg_info {
+ const char **argv;
+ int flags; /* AF_* */
+ int ai_argc;
+ int skip; /* first arg is argv[0], second is argv[1 + skip] */
+};
+
+/*
+ * activation record for function blocks
+ */
+struct block {
+ Area area; /* area to allocate things */
+ const char **argv;
+ char *error; /* error handler */
+ char *exit; /* exit handler */
+ struct block *next; /* enclosing block */
+ struct table vars; /* local variables */
+ struct table funs; /* local functions */
+ Getopt getopts_state;
+ int argc;
+ int flags; /* see BF_* */
+};
+
+/* Values for struct block.flags */
+#define BF_DOGETOPTS BIT(0) /* save/restore getopts state */
+
+/*
+ * Used by ktwalk() and ktnext() routines.
+ */
+struct tstate {
+ struct tbl **next;
+ ssize_t left;
+};
+
+EXTERN struct table taliases; /* tracked aliases */
+EXTERN struct table builtins; /* built-in commands */
+EXTERN struct table aliases; /* aliases */
+EXTERN struct table keywords; /* keywords */
+#ifndef MKSH_NOPWNAM
+EXTERN struct table homedirs; /* homedir() cache */
+#endif
+
+struct builtin {
+ const char *name;
+ int (*func)(const char **);
+};
+
+extern const struct builtin mkshbuiltins[];
+
+/* values for set_prompt() */
+#define PS1 0 /* command */
+#define PS2 1 /* command continuation */
+
+EXTERN char *path; /* copy of either PATH or def_path */
+EXTERN const char *def_path; /* path to use if PATH not set */
+EXTERN char *tmpdir; /* TMPDIR value */
+EXTERN const char *prompt;
+EXTERN int cur_prompt; /* PS1 or PS2 */
+EXTERN int current_lineno; /* LINENO value */
+
+/*
+ * Description of a command or an operation on commands.
+ */
+struct op {
+ const char **args; /* arguments to a command */
+ char **vars; /* variable assignments */
+ struct ioword **ioact; /* IO actions (eg, < > >>) */
+ struct op *left, *right; /* descendents */
+ char *str; /* word for case; identifier for for,
+ * select, and functions;
+ * path to execute for TEXEC;
+ * time hook for TCOM.
+ */
+ int lineno; /* TCOM/TFUNC: LINENO for this */
+ short type; /* operation type, see below */
+ /* WARNING: newtp(), tcopy() use evalflags = 0 to clear union */
+ union {
+ /* TCOM: arg expansion eval() flags */
+ short evalflags;
+ /* TFUNC: function x (vs x()) */
+ short ksh_func;
+ /* TPAT: termination character */
+ char charflag;
+ } u;
+};
+
+/* Tree.type values */
+#define TEOF 0
+#define TCOM 1 /* command */
+#define TPAREN 2 /* (c-list) */
+#define TPIPE 3 /* a | b */
+#define TLIST 4 /* a ; b */
+#define TOR 5 /* || */
+#define TAND 6 /* && */
+#define TBANG 7 /* ! */
+#define TDBRACKET 8 /* [[ .. ]] */
+#define TFOR 9
+#define TSELECT 10
+#define TCASE 11
+#define TIF 12
+#define TWHILE 13
+#define TUNTIL 14
+#define TELIF 15
+#define TPAT 16 /* pattern in case */
+#define TBRACE 17 /* {c-list} */
+#define TASYNC 18 /* c & */
+#define TFUNCT 19 /* function name { command; } */
+#define TTIME 20 /* time pipeline */
+#define TEXEC 21 /* fork/exec eval'd TCOM */
+#define TCOPROC 22 /* coprocess |& */
+
+/*
+ * prefix codes for words in command tree
+ */
+#define EOS 0 /* end of string */
+#define CHAR 1 /* unquoted character */
+#define QCHAR 2 /* quoted character */
+#define COMSUB 3 /* $() substitution (0 terminated) */
+#define EXPRSUB 4 /* $(()) substitution (0 terminated) */
+#define OQUOTE 5 /* opening " or ' */
+#define CQUOTE 6 /* closing " or ' */
+#define OSUBST 7 /* opening ${ subst (followed by { or X) */
+#define CSUBST 8 /* closing } of above (followed by } or X) */
+#define OPAT 9 /* open pattern: *(, @(, etc. */
+#define SPAT 10 /* separate pattern: | */
+#define CPAT 11 /* close pattern: ) */
+#define ADELIM 12 /* arbitrary delimiter: ${foo:2:3} ${foo/bar/baz} */
+#define FUNSUB 14 /* ${ foo;} substitution (NUL terminated) */
+#define VALSUB 15 /* ${|foo;} substitution (NUL terminated) */
+
+/*
+ * IO redirection
+ */
+struct ioword {
+ int unit; /* unit affected */
+ int flag; /* action (below) */
+ char *name; /* file name (unused if heredoc) */
+ char *delim; /* delimiter for <<,<<- */
+ char *heredoc; /* content of heredoc */
+};
+
+/* ioword.flag - type of redirection */
+#define IOTYPE 0xF /* type: bits 0:3 */
+#define IOREAD 0x1 /* < */
+#define IOWRITE 0x2 /* > */
+#define IORDWR 0x3 /* <>: todo */
+#define IOHERE 0x4 /* << (here file) */
+#define IOCAT 0x5 /* >> */
+#define IODUP 0x6 /* <&/>& */
+#define IOEVAL BIT(4) /* expand in << */
+#define IOSKIP BIT(5) /* <<-, skip ^\t* */
+#define IOCLOB BIT(6) /* >|, override -o noclobber */
+#define IORDUP BIT(7) /* x<&y (as opposed to x>&y) */
+#define IONAMEXP BIT(8) /* name has been expanded */
+#define IOBASH BIT(9) /* &> etc. */
+#define IOHERESTR BIT(10) /* <<< (here string) */
+#define IONDELIM BIT(11) /* null delimiter (<<) */
+
+/* execute/exchild flags */
+#define XEXEC BIT(0) /* execute without forking */
+#define XFORK BIT(1) /* fork before executing */
+#define XBGND BIT(2) /* command & */
+#define XPIPEI BIT(3) /* input is pipe */
+#define XPIPEO BIT(4) /* output is pipe */
+#define XXCOM BIT(5) /* `...` command */
+#define XPCLOSE BIT(6) /* exchild: close close_fd in parent */
+#define XCCLOSE BIT(7) /* exchild: close close_fd in child */
+#define XERROK BIT(8) /* non-zero exit ok (for set -e) */
+#define XCOPROC BIT(9) /* starting a co-process */
+#define XTIME BIT(10) /* timing TCOM command */
+#define XPIPEST BIT(11) /* want PIPESTATUS */
+
+/*
+ * flags to control expansion of words (assumed by t->evalflags to fit
+ * in a short)
+ */
+#define DOBLANK BIT(0) /* perform blank interpretation */
+#define DOGLOB BIT(1) /* expand [?* */
+#define DOPAT BIT(2) /* quote *?[ */
+#define DOTILDE BIT(3) /* normal ~ expansion (first char) */
+#define DONTRUNCOMMAND BIT(4) /* do not run $(command) things */
+#define DOASNTILDE BIT(5) /* assignment ~ expansion (after =, :) */
+#define DOBRACE BIT(6) /* used by expand(): do brace expansion */
+#define DOMAGIC BIT(7) /* used by expand(): string contains MAGIC */
+#define DOTEMP BIT(8) /* dito: in word part of ${..[%#=?]..} */
+#define DOVACHECK BIT(9) /* var assign check (for typeset, set, etc) */
+#define DOMARKDIRS BIT(10) /* force markdirs behaviour */
+#define DOTCOMEXEC BIT(11) /* not an eval flag, used by sh -c hack */
+
+#define X_EXTRA 20 /* this many extra bytes in X string */
+
+typedef struct XString {
+ char *end, *beg; /* end, begin of string */
+ size_t len; /* length */
+ Area *areap; /* area to allocate/free from */
+} XString;
+
+typedef char *XStringP;
+
+/* initialise expandable string */
+#define XinitN(xs, length, area) do { \
+ (xs).len = (length); \
+ (xs).areap = (area); \
+ (xs).beg = alloc((xs).len + X_EXTRA, (xs).areap); \
+ (xs).end = (xs).beg + (xs).len; \
+} while (/* CONSTCOND */ 0)
+#define Xinit(xs, xp, length, area) do { \
+ XinitN((xs), (length), (area)); \
+ (xp) = (xs).beg; \
+} while (/* CONSTCOND */ 0)
+
+/* stuff char into string */
+#define Xput(xs, xp, c) (*xp++ = (c))
+
+/* check if there are at least n bytes left */
+#define XcheckN(xs, xp, n) do { \
+ ssize_t more = ((xp) + (n)) - (xs).end; \
+ if (more > 0) \
+ (xp) = Xcheck_grow(&(xs), (xp), (size_t)more); \
+} while (/* CONSTCOND */ 0)
+
+/* check for overflow, expand string */
+#define Xcheck(xs, xp) XcheckN((xs), (xp), 1)
+
+/* free string */
+#define Xfree(xs, xp) afree((xs).beg, (xs).areap)
+
+/* close, return string */
+#define Xclose(xs, xp) aresize((xs).beg, (xp) - (xs).beg, (xs).areap)
+
+/* begin of string */
+#define Xstring(xs, xp) ((xs).beg)
+
+#define Xnleft(xs, xp) ((xs).end - (xp)) /* may be less than 0 */
+#define Xlength(xs, xp) ((xp) - (xs).beg)
+#define Xsize(xs, xp) ((xs).end - (xs).beg)
+#define Xsavepos(xs, xp) ((xp) - (xs).beg)
+#define Xrestpos(xs, xp, n) ((xs).beg + (n))
+
+char *Xcheck_grow(XString *, const char *, size_t);
+
+/*
+ * expandable vector of generic pointers
+ */
+
+typedef struct {
+ /* begin of allocated area */
+ void **beg;
+ /* currently used number of entries */
+ size_t len;
+ /* allocated number of entries */
+ size_t siz;
+} XPtrV;
+
+#define XPinit(x, n) do { \
+ (x).siz = (n); \
+ (x).len = 0; \
+ (x).beg = alloc2((x).siz, sizeof(void *), ATEMP); \
+} while (/* CONSTCOND */ 0) \
+
+#define XPput(x, p) do { \
+ if ((x).len == (x).siz) { \
+ (x).beg = aresize2((x).beg, (x).siz, \
+ 2 * sizeof(void *), ATEMP); \
+ (x).siz <<= 1; \
+ } \
+ (x).beg[(x).len++] = (p); \
+} while (/* CONSTCOND */ 0)
+
+#define XPptrv(x) ((x).beg)
+#define XPsize(x) ((x).len)
+#define XPclose(x) aresize2((x).beg, XPsize(x), sizeof(void *), ATEMP)
+#define XPfree(x) afree((x).beg, ATEMP)
+
+/*
+ * Lexer internals
+ */
+
+typedef struct source Source;
+struct source {
+ const char *str; /* input pointer */
+ const char *start; /* start of current buffer */
+ union {
+ const char **strv; /* string [] */
+ struct shf *shf; /* shell file */
+ struct tbl *tblp; /* alias (SF_HASALIAS) */
+ char *freeme; /* also for SREREAD */
+ } u;
+ const char *file; /* input file name */
+ int type; /* input type */
+ int line; /* line number */
+ int errline; /* line the error occurred on (0 if not set) */
+ int flags; /* SF_* */
+ Area *areap;
+ Source *next; /* stacked source */
+ XString xs; /* input buffer */
+ char ugbuf[2]; /* buffer for ungetsc() (SREREAD) and
+ * alias (SALIAS) */
+};
+
+/* Source.type values */
+#define SEOF 0 /* input EOF */
+#define SFILE 1 /* file input */
+#define SSTDIN 2 /* read stdin */
+#define SSTRING 3 /* string */
+#define SWSTR 4 /* string without \n */
+#define SWORDS 5 /* string[] */
+#define SWORDSEP 6 /* string[] separator */
+#define SALIAS 7 /* alias expansion */
+#define SREREAD 8 /* read ahead to be re-scanned */
+#define SSTRINGCMDLINE 9 /* string from "mksh -c ..." */
+
+/* Source.flags values */
+#define SF_ECHO BIT(0) /* echo input to shlout */
+#define SF_ALIAS BIT(1) /* faking space at end of alias */
+#define SF_ALIASEND BIT(2) /* faking space at end of alias */
+#define SF_TTY BIT(3) /* type == SSTDIN & it is a tty */
+#define SF_HASALIAS BIT(4) /* u.tblp valid (SALIAS, SEOF) */
+#define SF_MAYEXEC BIT(5) /* special sh -c optimisation hack */
+
+typedef union {
+ int i;
+ char *cp;
+ char **wp;
+ struct op *o;
+ struct ioword *iop;
+} YYSTYPE;
+
+/* If something is added here, add it to tokentab[] in syn.c as well */
+#define LWORD 256
+#define LOGAND 257 /* && */
+#define LOGOR 258 /* || */
+#define BREAK 259 /* ;; */
+#define IF 260
+#define THEN 261
+#define ELSE 262
+#define ELIF 263
+#define FI 264
+#define CASE 265
+#define ESAC 266
+#define FOR 267
+#define SELECT 268
+#define WHILE 269
+#define UNTIL 270
+#define DO 271
+#define DONE 272
+#define IN 273
+#define FUNCTION 274
+#define TIME 275
+#define REDIR 276
+#define MDPAREN 277 /* (( )) */
+#define BANG 278 /* ! */
+#define DBRACKET 279 /* [[ .. ]] */
+#define COPROC 280 /* |& */
+#define BRKEV 281 /* ;| */
+#define BRKFT 282 /* ;& */
+#define YYERRCODE 300
+
+/* flags to yylex */
+#define CONTIN BIT(0) /* skip new lines to complete command */
+#define ONEWORD BIT(1) /* single word for substitute() */
+#define ALIAS BIT(2) /* recognise alias */
+#define KEYWORD BIT(3) /* recognise keywords */
+#define LETEXPR BIT(4) /* get expression inside (( )) */
+#define VARASN BIT(5) /* check for var=word */
+#define ARRAYVAR BIT(6) /* parse x[1 & 2] as one word */
+#define ESACONLY BIT(7) /* only accept esac keyword */
+#define CMDWORD BIT(8) /* parsing simple command (alias related) */
+#define HEREDELIM BIT(9) /* parsing <<,<<- delimiter */
+#define LQCHAR BIT(10) /* source string contains QCHAR */
+#define HEREDOC BIT(11) /* parsing a here document body */
+
+#define HERES 10 /* max number of << in line */
+
+#undef CTRL
+#define CTRL(x) ((x) == '?' ? 0x7F : (x) & 0x1F) /* ASCII */
+#define UNCTRL(x) ((x) ^ 0x40) /* ASCII */
+#define ISCTRL(x) (((signed char)((uint8_t)(x) + 1)) < 33)
+
+#define IDENT 64
+
+EXTERN Source *source; /* yyparse/yylex source */
+EXTERN YYSTYPE yylval; /* result from yylex */
+EXTERN struct ioword *heres[HERES], **herep;
+EXTERN char ident[IDENT + 1];
+
+EXTERN char **history; /* saved commands */
+EXTERN char **histptr; /* last history item */
+EXTERN mksh_ari_t histsize; /* history size */
+
+/* user and system time of last j_waitjed job */
+EXTERN struct timeval j_usrtime, j_systime;
+
+#define notok2mul(max, val, c) (((val) != 0) && ((c) != 0) && \
+ (((max) / (c)) < (val)))
+#define notok2add(max, val, c) ((val) > ((max) - (c)))
+#define notoktomul(val, cnst) notok2mul(SIZE_MAX, (val), (cnst))
+#define notoktoadd(val, cnst) notok2add(SIZE_MAX, (val), (cnst))
+#define checkoktoadd(val, cnst) do { \
+ if (notoktoadd((val), (cnst))) \
+ internal_errorf(Tintovfl, (size_t)(val), \
+ '+', (size_t)(cnst)); \
+} while (/* CONSTCOND */ 0)
+
+
+/* lalloc.c */
+void ainit(Area *);
+void afreeall(Area *);
+/* these cannot fail and can take NULL (not for ap) */
+#define alloc(n, ap) aresize(NULL, (n), (ap))
+#define alloc2(m, n, ap) aresize2(NULL, (m), (n), (ap))
+void *aresize(void *, size_t, Area *);
+void *aresize2(void *, size_t, size_t, Area *);
+void afree(void *, Area *); /* can take NULL */
+/* edit.c */
+#ifndef MKSH_NO_CMDLINE_EDITING
+#ifndef MKSH_SMALL
+int x_bind(const char *, const char *, bool, bool);
+#else
+int x_bind(const char *, const char *, bool);
+#endif
+void x_init(void);
+#ifdef DEBUG_LEAKS
+void x_done(void);
+#endif
+int x_read(char *);
+#endif
+void x_mkraw(int, mksh_ttyst *, bool);
+/* eval.c */
+char *substitute(const char *, int);
+char **eval(const char **, int);
+char *evalstr(const char *cp, int);
+char *evalonestr(const char *cp, int);
+char *debunk(char *, const char *, size_t);
+void expand(const char *, XPtrV *, int);
+int glob_str(char *, XPtrV *, bool);
+char *tilde(char *);
+/* exec.c */
+int execute(struct op * volatile, volatile int, volatile int * volatile);
+int shcomexec(const char **);
+struct tbl *findfunc(const char *, uint32_t, bool);
+int define(const char *, struct op *);
+const char *builtin(const char *, int (*)(const char **));
+struct tbl *findcom(const char *, int);
+void flushcom(bool);
+const char *search_path(const char *, const char *, int, int *);
+void pr_menu(const char * const *);
+void pr_list(char * const *);
+/* expr.c */
+int evaluate(const char *, mksh_ari_t *, int, bool);
+int v_evaluate(struct tbl *, const char *, volatile int, bool);
+/* UTF-8 stuff */
+size_t utf_mbtowc(unsigned int *, const char *);
+size_t utf_wctomb(char *, unsigned int);
+int utf_widthadj(const char *, const char **);
+size_t utf_mbswidth(const char *) MKSH_A_PURE;
+const char *utf_skipcols(const char *, int) MKSH_A_PURE;
+size_t utf_ptradj(const char *) MKSH_A_PURE;
+int utf_wcwidth(unsigned int) MKSH_A_PURE;
+int ksh_access(const char *, int);
+struct tbl *tempvar(void);
+/* funcs.c */
+int c_hash(const char **);
+int c_pwd(const char **);
+int c_print(const char **);
+#ifdef MKSH_PRINTF_BUILTIN
+int c_printf(const char **);
+#endif
+int c_whence(const char **);
+int c_command(const char **);
+int c_typeset(const char **);
+int c_alias(const char **);
+int c_unalias(const char **);
+int c_let(const char **);
+int c_jobs(const char **);
+#ifndef MKSH_UNEMPLOYED
+int c_fgbg(const char **);
+#endif
+int c_kill(const char **);
+void getopts_reset(int);
+int c_getopts(const char **);
+#ifndef MKSH_NO_CMDLINE_EDITING
+int c_bind(const char **);
+#endif
+int c_shift(const char **);
+int c_umask(const char **);
+int c_dot(const char **);
+int c_wait(const char **);
+int c_read(const char **);
+int c_eval(const char **);
+int c_trap(const char **);
+int c_brkcont(const char **);
+int c_exitreturn(const char **);
+int c_set(const char **);
+int c_unset(const char **);
+int c_ulimit(const char **);
+int c_times(const char **);
+int timex(struct op *, int, volatile int *);
+void timex_hook(struct op *, char ** volatile *);
+int c_exec(const char **);
+/* dummy function (just need pointer value), special case in comexec() */
+#define c_builtin shcomexec
+int c_test(const char **);
+#if HAVE_MKNOD
+int c_mknod(const char **);
+#endif
+int c_realpath(const char **);
+int c_rename(const char **);
+int c_cat(const char **);
+int c_sleep(const char **);
+/* histrap.c */
+void init_histvec(void);
+void hist_init(Source *);
+#if HAVE_PERSISTENT_HISTORY
+void hist_finish(void);
+#endif
+void histsave(int *, const char *, bool, bool);
+#if !defined(MKSH_SMALL) && HAVE_PERSISTENT_HISTORY
+bool histsync(void);
+#endif
+int c_fc(const char **);
+void sethistsize(mksh_ari_t);
+#if HAVE_PERSISTENT_HISTORY
+void sethistfile(const char *);
+#endif
+#if !defined(MKSH_NO_CMDLINE_EDITING) && !MKSH_S_NOVI
+char **histpos(void) MKSH_A_PURE;
+int histnum(int);
+#endif
+int findhist(int, int, const char *, bool) MKSH_A_PURE;
+char **hist_get_newest(bool);
+void inittraps(void);
+void alarm_init(void);
+Trap *gettrap(const char *, bool);
+void trapsig(int);
+void intrcheck(void);
+int fatal_trap_check(void);
+int trap_pending(void);
+void runtraps(int intr);
+void runtrap(Trap *, bool);
+void cleartraps(void);
+void restoresigs(void);
+void settrap(Trap *, const char *);
+int block_pipe(void);
+void restore_pipe(int);
+int setsig(Trap *, sig_t, int);
+void setexecsig(Trap *, int);
+#if HAVE_FLOCK || HAVE_LOCK_FCNTL
+void mksh_lockfd(int);
+void mksh_unlkfd(int);
+#endif
+/* jobs.c */
+void j_init(void);
+void j_exit(void);
+#ifndef MKSH_UNEMPLOYED
+void j_change(void);
+#endif
+int exchild(struct op *, int, volatile int *, int);
+void startlast(void);
+int waitlast(void);
+int waitfor(const char *, int *);
+int j_kill(const char *, int);
+#ifndef MKSH_UNEMPLOYED
+int j_resume(const char *, int);
+#endif
+#if !defined(MKSH_UNEMPLOYED) && HAVE_GETSID
+void j_suspend(void);
+#endif
+int j_jobs(const char *, int, int);
+void j_notify(void);
+pid_t j_async(void);
+int j_stopped_running(void);
+/* lex.c */
+int yylex(int);
+void yyskiputf8bom(void);
+void yyerror(const char *, ...)
+ MKSH_A_NORETURN
+ MKSH_A_FORMAT(__printf__, 1, 2);
+Source *pushs(int, Area *);
+void set_prompt(int, Source *);
+int pprompt(const char *, int);
+/* main.c */
+int include(const char *, int, const char **, bool);
+int command(const char *, int);
+int shell(Source * volatile, volatile bool);
+/* argument MUST NOT be 0 */
+void unwind(int) MKSH_A_NORETURN;
+void newenv(int);
+void quitenv(struct shf *);
+void cleanup_parents_env(void);
+void cleanup_proc_env(void);
+void errorf(const char *, ...)
+ MKSH_A_NORETURN
+ MKSH_A_FORMAT(__printf__, 1, 2);
+void errorfx(int, const char *, ...)
+ MKSH_A_NORETURN
+ MKSH_A_FORMAT(__printf__, 2, 3);
+void warningf(bool, const char *, ...)
+ MKSH_A_FORMAT(__printf__, 2, 3);
+void bi_errorf(const char *, ...)
+ MKSH_A_FORMAT(__printf__, 1, 2);
+#define errorfz() errorf(NULL)
+#define errorfxz(rc) errorfx((rc), NULL)
+#define bi_errorfz() bi_errorf(NULL)
+void internal_errorf(const char *, ...)
+ MKSH_A_NORETURN
+ MKSH_A_FORMAT(__printf__, 1, 2);
+void internal_warningf(const char *, ...)
+ MKSH_A_FORMAT(__printf__, 1, 2);
+void error_prefix(bool);
+void shellf(const char *, ...)
+ MKSH_A_FORMAT(__printf__, 1, 2);
+void shprintf(const char *, ...)
+ MKSH_A_FORMAT(__printf__, 1, 2);
+int can_seek(int);
+void initio(void);
+int ksh_dup2(int, int, bool);
+short savefd(int);
+void restfd(int, int);
+void openpipe(int *);
+void closepipe(int *);
+int check_fd(const char *, int, const char **);
+void coproc_init(void);
+void coproc_read_close(int);
+void coproc_readw_close(int);
+void coproc_write_close(int);
+int coproc_getfd(int, const char **);
+void coproc_cleanup(int);
+struct temp *maketemp(Area *, Temp_type, struct temp **);
+void ktinit(Area *, struct table *, uint8_t);
+struct tbl *ktscan(struct table *, const char *, uint32_t, struct tbl ***);
+/* table, name (key) to search for, hash(n) */
+#define ktsearch(tp, s, h) ktscan((tp), (s), (h), NULL)
+struct tbl *ktenter(struct table *, const char *, uint32_t);
+#define ktdelete(p) do { p->flag = 0; } while (/* CONSTCOND */ 0)
+void ktwalk(struct tstate *, struct table *);
+struct tbl *ktnext(struct tstate *);
+struct tbl **ktsort(struct table *);
+#ifdef DF
+void DF(const char *, ...)
+ MKSH_A_FORMAT(__printf__, 1, 2);
+#endif
+/* misc.c */
+void setctypes(const char *, int);
+void initctypes(void);
+size_t option(const char *) MKSH_A_PURE;
+char *getoptions(void);
+void change_flag(enum sh_flag, int, bool);
+void change_xtrace(unsigned char, bool);
+int parse_args(const char **, int, bool *);
+int getn(const char *, int *);
+int gmatchx(const char *, const char *, bool);
+int has_globbing(const char *, const char *) MKSH_A_PURE;
+int xstrcmp(const void *, const void *) MKSH_A_PURE;
+void ksh_getopt_reset(Getopt *, int);
+int ksh_getopt(const char **, Getopt *, const char *);
+void print_value_quoted(struct shf *, const char *);
+char *quote_value(const char *);
+void print_columns(struct shf *, unsigned int,
+ char *(*)(char *, size_t, unsigned int, const void *),
+ const void *, size_t, size_t, bool);
+void strip_nuls(char *, int);
+ssize_t blocking_read(int, char *, size_t)
+ MKSH_A_BOUNDED(__buffer__, 2, 3);
+int reset_nonblock(int);
+char *ksh_get_wd(void);
+char *do_realpath(const char *);
+void simplify_path(char *);
+void set_current_wd(const char *);
+int c_cd(const char **);
+#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
+char *strdup_i(const char *, Area *);
+char *strndup_i(const char *, size_t, Area *);
+#endif
+int unbksl(bool, int (*)(void), void (*)(int));
+/* shf.c */
+struct shf *shf_open(const char *, int, int, int);
+struct shf *shf_fdopen(int, int, struct shf *);
+struct shf *shf_reopen(int, int, struct shf *);
+struct shf *shf_sopen(char *, ssize_t, int, struct shf *);
+int shf_close(struct shf *);
+int shf_fdclose(struct shf *);
+char *shf_sclose(struct shf *);
+int shf_flush(struct shf *);
+ssize_t shf_read(char *, ssize_t, struct shf *);
+char *shf_getse(char *, ssize_t, struct shf *);
+int shf_getchar(struct shf *s);
+int shf_ungetc(int, struct shf *);
+#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
+int shf_getc(struct shf *);
+int shf_putc(int, struct shf *);
+#else
+#define shf_getc shf_getc_i
+#define shf_putc shf_putc_i
+#endif
+int shf_putchar(int, struct shf *);
+ssize_t shf_puts(const char *, struct shf *);
+ssize_t shf_write(const char *, ssize_t, struct shf *);
+ssize_t shf_fprintf(struct shf *, const char *, ...)
+ MKSH_A_FORMAT(__printf__, 2, 3);
+ssize_t shf_snprintf(char *, ssize_t, const char *, ...)
+ MKSH_A_FORMAT(__printf__, 3, 4)
+ MKSH_A_BOUNDED(__string__, 1, 2);
+char *shf_smprintf(const char *, ...)
+ MKSH_A_FORMAT(__printf__, 1, 2);
+ssize_t shf_vfprintf(struct shf *, const char *, va_list)
+ MKSH_A_FORMAT(__printf__, 2, 0);
+/* syn.c */
+void initkeywords(void);
+struct op *compile(Source *, bool);
+bool parse_usec(const char *, struct timeval *);
+char *yyrecursive(int);
+void yyrecursive_pop(bool);
+/* tree.c */
+void fptreef(struct shf *, int, const char *, ...);
+char *snptreef(char *, ssize_t, const char *, ...);
+struct op *tcopy(struct op *, Area *);
+char *wdcopy(const char *, Area *);
+const char *wdscan(const char *, int);
+#define WDS_TPUTS BIT(0) /* tputS (dumpwdvar) mode */
+#define WDS_KEEPQ BIT(1) /* keep quote characters */
+#define WDS_MAGIC BIT(2) /* make MAGIC */
+char *wdstrip(const char *, int);
+void tfree(struct op *, Area *);
+void dumpchar(struct shf *, int);
+void dumptree(struct shf *, struct op *);
+void dumpwdvar(struct shf *, const char *);
+void dumpioact(struct shf *shf, struct op *t);
+void vistree(char *, size_t, struct op *)
+ MKSH_A_BOUNDED(__string__, 1, 2);
+void fpFUNCTf(struct shf *, int, bool, const char *, struct op *);
+/* var.c */
+void newblock(void);
+void popblock(void);
+void initvar(void);
+struct block *varsearch(struct block *, struct tbl **, const char *, uint32_t);
+struct tbl *global(const char *);
+struct tbl *local(const char *, bool);
+char *str_val(struct tbl *);
+int setstr(struct tbl *, const char *, int);
+struct tbl *setint_v(struct tbl *, struct tbl *, bool);
+void setint(struct tbl *, mksh_ari_t);
+void setint_n(struct tbl *, mksh_ari_t, int);
+struct tbl *typeset(const char *, uint32_t, uint32_t, int, int);
+void unset(struct tbl *, int);
+const char *skip_varname(const char *, bool) MKSH_A_PURE;
+const char *skip_wdvarname(const char *, bool) MKSH_A_PURE;
+int is_wdvarname(const char *, bool) MKSH_A_PURE;
+int is_wdvarassign(const char *) MKSH_A_PURE;
+struct tbl *arraysearch(struct tbl *, uint32_t);
+char **makenv(void);
+void change_winsz(void);
+size_t array_ref_len(const char *) MKSH_A_PURE;
+char *arrayname(const char *);
+mksh_uari_t set_array(const char *, bool, const char **);
+uint32_t hash(const void *) MKSH_A_PURE;
+uint32_t chvt_rndsetup(const void *, size_t) MKSH_A_PURE;
+mksh_ari_t rndget(void);
+void rndset(unsigned long);
+void rndpush(const void *);
+
+enum Test_op {
+ /* non-operator */
+ TO_NONOP = 0,
+ /* unary operators */
+ TO_STNZE, TO_STZER, TO_OPTION,
+ TO_FILAXST,
+ TO_FILEXST,
+ TO_FILREG, TO_FILBDEV, TO_FILCDEV, TO_FILSYM, TO_FILFIFO, TO_FILSOCK,
+ TO_FILCDF, TO_FILID, TO_FILGID, TO_FILSETG, TO_FILSTCK, TO_FILUID,
+ TO_FILRD, TO_FILGZ, TO_FILTT, TO_FILSETU, TO_FILWR, TO_FILEX,
+ /* binary operators */
+ TO_STEQL, TO_STNEQ, TO_STLT, TO_STGT, TO_INTEQ, TO_INTNE, TO_INTGT,
+ TO_INTGE, TO_INTLT, TO_INTLE, TO_FILEQ, TO_FILNT, TO_FILOT,
+ /* not an operator */
+ TO_NONNULL /* !TO_NONOP */
+};
+typedef enum Test_op Test_op;
+
+/* Used by Test_env.isa() (order important - used to index *_tokens[] arrays) */
+enum Test_meta {
+ TM_OR, /* -o or || */
+ TM_AND, /* -a or && */
+ TM_NOT, /* ! */
+ TM_OPAREN, /* ( */
+ TM_CPAREN, /* ) */
+ TM_UNOP, /* unary operator */
+ TM_BINOP, /* binary operator */
+ TM_END /* end of input */
+};
+typedef enum Test_meta Test_meta;
+
+#define TEF_ERROR BIT(0) /* set if we've hit an error */
+#define TEF_DBRACKET BIT(1) /* set if [[ .. ]] test */
+
+typedef struct test_env {
+ union {
+ const char **wp; /* used by ptest_* */
+ XPtrV *av; /* used by dbtestp_* */
+ } pos;
+ const char **wp_end; /* used by ptest_* */
+ Test_op (*isa)(struct test_env *, Test_meta);
+ const char *(*getopnd) (struct test_env *, Test_op, bool);
+ int (*eval)(struct test_env *, Test_op, const char *, const char *, bool);
+ void (*error)(struct test_env *, int, const char *);
+ int flags; /* TEF_* */
+} Test_env;
+
+extern const char * const dbtest_tokens[];
+
+Test_op test_isop(Test_meta, const char *) MKSH_A_PURE;
+int test_eval(Test_env *, Test_op, const char *, const char *, bool);
+int test_parse(Test_env *);
+
+/* tty_fd is not opened O_BINARY, it's thus never read/written */
+EXTERN int tty_fd E_INIT(-1); /* dup'd tty file descriptor */
+EXTERN bool tty_devtty; /* true if tty_fd is from /dev/tty */
+EXTERN mksh_ttyst tty_state; /* saved tty state */
+EXTERN bool tty_hasstate; /* true if tty_state is valid */
+
+extern int tty_init_fd(void); /* initialise tty_fd, tty_devtty */
+
+/* be sure not to interfere with anyone else's idea about EXTERN */
+#ifdef EXTERN_DEFINED
+# undef EXTERN_DEFINED
+# undef EXTERN
+#endif
+#undef E_INIT
+
+#endif /* !MKSH_INCLUDES_ONLY */
Copied: vendor/MirOS/mksh/R50/sh_flags.opt (from rev 6707, vendor/MirOS/mksh/dist/sh_flags.opt)
===================================================================
--- vendor/MirOS/mksh/R50/sh_flags.opt (rev 0)
+++ vendor/MirOS/mksh/R50/sh_flags.opt 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,179 @@
+ at SHFLAGS_DEFNS
+__RCSID("$MirOS: src/bin/mksh/sh_flags.opt,v 1.2 2014/06/09 12:28:19 tg Exp $");
+#define FN(sname,cname,flags,ochar) static const struct { /* character flag (if any) */ char c; /* OF_* */ unsigned char optflags; /* long name of option */ char name[sizeof(sname)]; } shoptione_ ## cname = { ochar, flags, sname };
+ at SHFLAGS_ENUMS
+#define FN(sname,cname,flags,ochar) cname,
+#define F0(sname,cname,flags,ochar) cname = 0,
+ at SHFLAGS_ITEMS
+#define FN(sname,cname,flags,ochar) ((const char *)(&shoptione_ ## cname)) + 2,
+@@
+
+/* special cases */
+
+<o:|!SHFLAGS_NOT_CMD
+<T:|!SHFLAGS_NOT_CMD
+<A:|!SHFLAGS_NOT_SET
+<o;|!SHFLAGS_NOT_SET
+<s|!SHFLAGS_NOT_SET
+
+/*
+ * options are sorted by their longnames
+ */
+
+/* -a all new parameters are created with the export attribute */
+>a|
+F0("allexport", FEXPORT, OF_ANY
+
+/* ./. bgnice */
+>| HAVE_NICE
+FN("bgnice", FBGNICE, OF_ANY
+
+/* ./. enable {} globbing (non-standard) */
+>|
+FN("braceexpand", FBRACEEXPAND, OF_ANY
+
+/* ./. Emacs command line editing mode */
+>|!defined(MKSH_NO_CMDLINE_EDITING) || defined(MKSH_LEGACY_MODE)
+FN("emacs", FEMACS, OF_ANY
+
+/* -e quit on error */
+>e|
+FN("errexit", FERREXIT, OF_ANY
+
+/* ./. Emacs command line editing mode, gmacs variant */
+>|!defined(MKSH_NO_CMDLINE_EDITING) || defined(MKSH_LEGACY_MODE)
+FN("gmacs", FGMACS, OF_ANY
+
+/* ./. reading EOF does not exit */
+>|
+FN("ignoreeof", FIGNOREEOF, OF_ANY
+
+/* ./. inherit -x flag */
+>|
+FN("inherit-xtrace", FXTRACEREC, OF_ANY
+
+/* -i interactive shell */
+>i|!SHFLAGS_NOT_CMD
+FN("interactive", FTALKING, OF_CMDLINE
+
+/* -k name=value are recognised anywhere */
+>k|
+FN("keyword", FKEYWORD, OF_ANY
+
+/* -l login shell */
+>l|!SHFLAGS_NOT_CMD
+FN("login", FLOGIN, OF_CMDLINE
+
+/* -X mark dirs with / in file name completion */
+>X|
+FN("markdirs", FMARKDIRS, OF_ANY
+
+/* -m job control monitoring */
+>m|!MKSH_UNEMPLOYED
+FN("monitor", FMONITOR, OF_ANY
+
+/* -C don't overwrite existing files */
+>C|
+FN("noclobber", FNOCLOBBER, OF_ANY
+
+/* -n don't execute any commands */
+>n|
+FN("noexec", FNOEXEC, OF_ANY
+
+/* -f don't do file globbing */
+>f|
+FN("noglob", FNOGLOB, OF_ANY
+
+/* ./. don't kill running jobs when login shell exits */
+>|
+FN("nohup", FNOHUP, OF_ANY
+
+/* ./. don't save functions in history (no effect) */
+>|
+FN("nolog", FNOLOG, OF_ANY
+
+/* -b asynchronous job completion notification */
+>b|!MKSH_UNEMPLOYED
+FN("notify", FNOTIFY, OF_ANY
+
+/* -u using an unset variable is an error */
+>u|
+FN("nounset", FNOUNSET, OF_ANY
+
+/* ./. don't do logical cds/pwds (non-standard) */
+>|
+FN("physical", FPHYSICAL, OF_ANY
+
+/* ./. errorlevel of a pipeline is the rightmost nonzero value */
+>|
+FN("pipefail", FPIPEFAIL, OF_ANY
+
+/* ./. adhere more closely to POSIX even when undesirable */
+>|
+FN("posix", FPOSIX, OF_ANY
+
+/* -p privileged shell (suid) */
+>p|
+FN("privileged", FPRIVILEGED, OF_ANY
+
+/* -r restricted shell */
+>r|!SHFLAGS_NOT_CMD
+FN("restricted", FRESTRICTED, OF_CMDLINE
+
+/* ./. kludge mode for better compat with traditional sh (OS-specific) */
+>|
+FN("sh", FSH, OF_ANY
+
+/* -s (invocation) parse stdin (pseudo non-standard) */
+>s|!SHFLAGS_NOT_CMD
+FN("stdin", FSTDIN, OF_CMDLINE
+
+/* -h create tracked aliases for all commands */
+>h|
+FN("trackall", FTRACKALL, OF_ANY
+
+/* -U enable UTF-8 processing (non-standard) */
+>U|
+FN("utf8-mode", FUNICODE, OF_ANY
+
+/* -v echo input */
+>v|
+FN("verbose", FVERBOSE, OF_ANY
+
+/* ./. Vi command line editing mode */
+>|!defined(MKSH_NO_CMDLINE_EDITING) || defined(MKSH_LEGACY_MODE)
+FN("vi", FVI, OF_ANY
+
+/* ./. enable ESC as file name completion character (non-standard) */
+>|!defined(MKSH_NO_CMDLINE_EDITING) || defined(MKSH_LEGACY_MODE)
+FN("vi-esccomplete", FVIESCCOMPLETE, OF_ANY
+
+/* ./. enable Tab as file name completion character (non-standard) */
+>|!defined(MKSH_NO_CMDLINE_EDITING) || defined(MKSH_LEGACY_MODE)
+FN("vi-tabcomplete", FVITABCOMPLETE, OF_ANY
+
+/* ./. always read in raw mode (no effect) */
+>|!defined(MKSH_NO_CMDLINE_EDITING) || defined(MKSH_LEGACY_MODE)
+FN("viraw", FVIRAW, OF_ANY
+
+/* -x execution trace (display commands as they are run) */
+>x|
+FN("xtrace", FXTRACE, OF_ANY
+
+/* -c (invocation) execute specified command */
+>c|!SHFLAGS_NOT_CMD
+FN("", FCOMMAND, OF_CMDLINE
+
+/*
+ * anonymous flags: used internally by shell only (not visible to user
+ */
+
+/* ./. direct builtin call (divined from argv[0] multi-call binary) */
+>|
+FN("", FAS_BUILTIN, OF_INTERNAL
+
+/* ./. (internal) initial shell was interactive */
+>|
+FN("", FTALKING_I, OF_INTERNAL
+
+|SHFLAGS_OPTCS
Deleted: vendor/MirOS/mksh/R50/shf.c
===================================================================
--- vendor/MirOS/mksh/dist/shf.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/shf.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1165 +0,0 @@
-/* $OpenBSD: shf.c,v 1.16 2013/04/19 17:36:09 millert Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011,
- * 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- *-
- * Use %zX instead of %p and floating point isn't supported at all.
- */
-
-#include "sh.h"
-
-__RCSID("$MirOS: src/bin/mksh/shf.c,v 1.61 2013/07/21 18:36:03 tg Exp $");
-
-/* flags to shf_emptybuf() */
-#define EB_READSW 0x01 /* about to switch to reading */
-#define EB_GROW 0x02 /* grow buffer if necessary (STRING+DYNAMIC) */
-
-/*
- * Replacement stdio routines. Stdio is too flakey on too many machines
- * to be useful when you have multiple processes using the same underlying
- * file descriptors.
- */
-
-static int shf_fillbuf(struct shf *);
-static int shf_emptybuf(struct shf *, int);
-
-/*
- * Open a file. First three args are for open(), last arg is flags for
- * this package. Returns NULL if file could not be opened, or if a dup
- * fails.
- */
-struct shf *
-shf_open(const char *name, int oflags, int mode, int sflags)
-{
- struct shf *shf;
- ssize_t bsize =
- /* at most 512 */
- sflags & SHF_UNBUF ? (sflags & SHF_RD ? 1 : 0) : SHF_BSIZE;
- int fd, eno;
-
- /* Done before open so if alloca fails, fd won't be lost. */
- shf = alloc(sizeof(struct shf) + bsize, ATEMP);
- shf->areap = ATEMP;
- shf->buf = (unsigned char *)&shf[1];
- shf->bsize = bsize;
- shf->flags = SHF_ALLOCS;
- /* Rest filled in by reopen. */
-
- fd = open(name, oflags, mode);
- if (fd < 0) {
- eno = errno;
- afree(shf, shf->areap);
- errno = eno;
- return (NULL);
- }
- if ((sflags & SHF_MAPHI) && fd < FDBASE) {
- int nfd;
-
- nfd = fcntl(fd, F_DUPFD, FDBASE);
- eno = errno;
- close(fd);
- if (nfd < 0) {
- afree(shf, shf->areap);
- errno = eno;
- return (NULL);
- }
- fd = nfd;
- }
- sflags &= ~SHF_ACCMODE;
- sflags |= (oflags & O_ACCMODE) == O_RDONLY ? SHF_RD :
- ((oflags & O_ACCMODE) == O_WRONLY ? SHF_WR : SHF_RDWR);
-
- return (shf_reopen(fd, sflags, shf));
-}
-
-/* helper function for shf_fdopen and shf_reopen */
-static void
-shf_open_hlp(int fd, int *sflagsp, const char *where)
-{
- int sflags = *sflagsp;
-
- /* use fcntl() to figure out correct read/write flags */
- if (sflags & SHF_GETFL) {
- int flags = fcntl(fd, F_GETFL, 0);
-
- if (flags < 0)
- /* will get an error on first read/write */
- sflags |= SHF_RDWR;
- else {
- switch (flags & O_ACCMODE) {
- case O_RDONLY:
- sflags |= SHF_RD;
- break;
- case O_WRONLY:
- sflags |= SHF_WR;
- break;
- case O_RDWR:
- sflags |= SHF_RDWR;
- break;
- }
- }
- *sflagsp = sflags;
- }
-
- if (!(sflags & (SHF_RD | SHF_WR)))
- internal_errorf("%s: %s", where, "missing read/write");
-}
-
-/* Set up the shf structure for a file descriptor. Doesn't fail. */
-struct shf *
-shf_fdopen(int fd, int sflags, struct shf *shf)
-{
- ssize_t bsize =
- /* at most 512 */
- sflags & SHF_UNBUF ? (sflags & SHF_RD ? 1 : 0) : SHF_BSIZE;
-
- shf_open_hlp(fd, &sflags, "shf_fdopen");
- if (shf) {
- if (bsize) {
- shf->buf = alloc(bsize, ATEMP);
- sflags |= SHF_ALLOCB;
- } else
- shf->buf = NULL;
- } else {
- shf = alloc(sizeof(struct shf) + bsize, ATEMP);
- shf->buf = (unsigned char *)&shf[1];
- sflags |= SHF_ALLOCS;
- }
- shf->areap = ATEMP;
- shf->fd = fd;
- shf->rp = shf->wp = shf->buf;
- shf->rnleft = 0;
- shf->rbsize = bsize;
- shf->wnleft = 0; /* force call to shf_emptybuf() */
- shf->wbsize = sflags & SHF_UNBUF ? 0 : bsize;
- shf->flags = sflags;
- shf->errnosv = 0;
- shf->bsize = bsize;
- if (sflags & SHF_CLEXEC)
- fcntl(fd, F_SETFD, FD_CLOEXEC);
- return (shf);
-}
-
-/* Set up an existing shf (and buffer) to use the given fd */
-struct shf *
-shf_reopen(int fd, int sflags, struct shf *shf)
-{
- ssize_t bsize =
- /* at most 512 */
- sflags & SHF_UNBUF ? (sflags & SHF_RD ? 1 : 0) : SHF_BSIZE;
-
- shf_open_hlp(fd, &sflags, "shf_reopen");
- if (!shf || !shf->buf || shf->bsize < bsize)
- internal_errorf("%s: %s", "shf_reopen", "bad shf/buf/bsize");
-
- /* assumes shf->buf and shf->bsize already set up */
- shf->fd = fd;
- shf->rp = shf->wp = shf->buf;
- shf->rnleft = 0;
- shf->rbsize = bsize;
- shf->wnleft = 0; /* force call to shf_emptybuf() */
- shf->wbsize = sflags & SHF_UNBUF ? 0 : bsize;
- shf->flags = (shf->flags & (SHF_ALLOCS | SHF_ALLOCB)) | sflags;
- shf->errnosv = 0;
- if (sflags & SHF_CLEXEC)
- fcntl(fd, F_SETFD, FD_CLOEXEC);
- return (shf);
-}
-
-/*
- * Open a string for reading or writing. If reading, bsize is the number
- * of bytes that can be read. If writing, bsize is the maximum number of
- * bytes that can be written. If shf is not NULL, it is filled in and
- * returned, if it is NULL, shf is allocated. If writing and buf is NULL
- * and SHF_DYNAMIC is set, the buffer is allocated (if bsize > 0, it is
- * used for the initial size). Doesn't fail.
- * When writing, a byte is reserved for a trailing NUL - see shf_sclose().
- */
-struct shf *
-shf_sopen(char *buf, ssize_t bsize, int sflags, struct shf *shf)
-{
- /* can't have a read+write string */
- if (!(!(sflags & SHF_RD) ^ !(sflags & SHF_WR)))
- internal_errorf("%s: flags 0x%X", "shf_sopen", sflags);
-
- if (!shf) {
- shf = alloc(sizeof(struct shf), ATEMP);
- sflags |= SHF_ALLOCS;
- }
- shf->areap = ATEMP;
- if (!buf && (sflags & SHF_WR) && (sflags & SHF_DYNAMIC)) {
- if (bsize <= 0)
- bsize = 64;
- sflags |= SHF_ALLOCB;
- buf = alloc(bsize, shf->areap);
- }
- shf->fd = -1;
- shf->buf = shf->rp = shf->wp = (unsigned char *)buf;
- shf->rnleft = bsize;
- shf->rbsize = bsize;
- shf->wnleft = bsize - 1; /* space for a '\0' */
- shf->wbsize = bsize;
- shf->flags = sflags | SHF_STRING;
- shf->errnosv = 0;
- shf->bsize = bsize;
-
- return (shf);
-}
-
-/* Flush and close file descriptor, free the shf structure */
-int
-shf_close(struct shf *shf)
-{
- int ret = 0;
-
- if (shf->fd >= 0) {
- ret = shf_flush(shf);
- if (close(shf->fd) < 0)
- ret = EOF;
- }
- if (shf->flags & SHF_ALLOCS)
- afree(shf, shf->areap);
- else if (shf->flags & SHF_ALLOCB)
- afree(shf->buf, shf->areap);
-
- return (ret);
-}
-
-/* Flush and close file descriptor, don't free file structure */
-int
-shf_fdclose(struct shf *shf)
-{
- int ret = 0;
-
- if (shf->fd >= 0) {
- ret = shf_flush(shf);
- if (close(shf->fd) < 0)
- ret = EOF;
- shf->rnleft = 0;
- shf->rp = shf->buf;
- shf->wnleft = 0;
- shf->fd = -1;
- }
-
- return (ret);
-}
-
-/*
- * Close a string - if it was opened for writing, it is NUL terminated;
- * returns a pointer to the string and frees shf if it was allocated
- * (does not free string if it was allocated).
- */
-char *
-shf_sclose(struct shf *shf)
-{
- unsigned char *s = shf->buf;
-
- /* NUL terminate */
- if (shf->flags & SHF_WR) {
- shf->wnleft++;
- shf_putc('\0', shf);
- }
- if (shf->flags & SHF_ALLOCS)
- afree(shf, shf->areap);
- return ((char *)s);
-}
-
-/*
- * Un-read what has been read but not examined, or write what has been
- * buffered. Returns 0 for success, EOF for (write) error.
- */
-int
-shf_flush(struct shf *shf)
-{
- if (shf->flags & SHF_STRING)
- return ((shf->flags & SHF_WR) ? EOF : 0);
-
- if (shf->fd < 0)
- internal_errorf("%s: %s", "shf_flush", "no fd");
-
- if (shf->flags & SHF_ERROR) {
- errno = shf->errnosv;
- return (EOF);
- }
-
- if (shf->flags & SHF_READING) {
- shf->flags &= ~(SHF_EOF | SHF_READING);
- if (shf->rnleft > 0) {
- lseek(shf->fd, (off_t)-shf->rnleft, SEEK_CUR);
- shf->rnleft = 0;
- shf->rp = shf->buf;
- }
- return (0);
- } else if (shf->flags & SHF_WRITING)
- return (shf_emptybuf(shf, 0));
-
- return (0);
-}
-
-/*
- * Write out any buffered data. If currently reading, flushes the read
- * buffer. Returns 0 for success, EOF for (write) error.
- */
-static int
-shf_emptybuf(struct shf *shf, int flags)
-{
- int ret = 0;
-
- if (!(shf->flags & SHF_STRING) && shf->fd < 0)
- internal_errorf("%s: %s", "shf_emptybuf", "no fd");
-
- if (shf->flags & SHF_ERROR) {
- errno = shf->errnosv;
- return (EOF);
- }
-
- if (shf->flags & SHF_READING) {
- if (flags & EB_READSW)
- /* doesn't happen */
- return (0);
- ret = shf_flush(shf);
- shf->flags &= ~SHF_READING;
- }
- if (shf->flags & SHF_STRING) {
- unsigned char *nbuf;
-
- /*
- * Note that we assume SHF_ALLOCS is not set if
- * SHF_ALLOCB is set... (changing the shf pointer could
- * cause problems)
- */
- if (!(flags & EB_GROW) || !(shf->flags & SHF_DYNAMIC) ||
- !(shf->flags & SHF_ALLOCB))
- return (EOF);
- /* allocate more space for buffer */
- nbuf = aresize2(shf->buf, 2, shf->wbsize, shf->areap);
- shf->rp = nbuf + (shf->rp - shf->buf);
- shf->wp = nbuf + (shf->wp - shf->buf);
- shf->rbsize += shf->wbsize;
- shf->wnleft += shf->wbsize;
- shf->wbsize <<= 1;
- shf->buf = nbuf;
- } else {
- if (shf->flags & SHF_WRITING) {
- ssize_t n, ntowrite = shf->wp - shf->buf;
- unsigned char *buf = shf->buf;
-
- while (ntowrite > 0) {
- n = write(shf->fd, buf, ntowrite);
- if (n < 0) {
- if (errno == EINTR &&
- !(shf->flags & SHF_INTERRUPT))
- continue;
- shf->flags |= SHF_ERROR;
- shf->errnosv = errno;
- shf->wnleft = 0;
- if (buf != shf->buf) {
- /*
- * allow a second flush
- * to work
- */
- memmove(shf->buf, buf,
- ntowrite);
- shf->wp = shf->buf + ntowrite;
- }
- return (EOF);
- }
- buf += n;
- ntowrite -= n;
- }
- if (flags & EB_READSW) {
- shf->wp = shf->buf;
- shf->wnleft = 0;
- shf->flags &= ~SHF_WRITING;
- return (0);
- }
- }
- shf->wp = shf->buf;
- shf->wnleft = shf->wbsize;
- }
- shf->flags |= SHF_WRITING;
-
- return (ret);
-}
-
-/* Fill up a read buffer. Returns EOF for a read error, 0 otherwise. */
-static int
-shf_fillbuf(struct shf *shf)
-{
- ssize_t n;
-
- if (shf->flags & SHF_STRING)
- return (0);
-
- if (shf->fd < 0)
- internal_errorf("%s: %s", "shf_fillbuf", "no fd");
-
- if (shf->flags & (SHF_EOF | SHF_ERROR)) {
- if (shf->flags & SHF_ERROR)
- errno = shf->errnosv;
- return (EOF);
- }
-
- if ((shf->flags & SHF_WRITING) && shf_emptybuf(shf, EB_READSW) == EOF)
- return (EOF);
-
- shf->flags |= SHF_READING;
-
- shf->rp = shf->buf;
- while (/* CONSTCOND */ 1) {
- n = blocking_read(shf->fd, (char *)shf->buf, shf->rbsize);
- if (n < 0 && errno == EINTR && !(shf->flags & SHF_INTERRUPT))
- continue;
- break;
- }
- if (n < 0) {
- shf->flags |= SHF_ERROR;
- shf->errnosv = errno;
- shf->rnleft = 0;
- shf->rp = shf->buf;
- return (EOF);
- }
- if ((shf->rnleft = n) == 0)
- shf->flags |= SHF_EOF;
- return (0);
-}
-
-/*
- * Read a buffer from shf. Returns the number of bytes read into buf, if
- * no bytes were read, returns 0 if end of file was seen, EOF if a read
- * error occurred.
- */
-ssize_t
-shf_read(char *buf, ssize_t bsize, struct shf *shf)
-{
- ssize_t ncopy, orig_bsize = bsize;
-
- if (!(shf->flags & SHF_RD))
- internal_errorf("%s: flags 0x%X", "shf_read", shf->flags);
-
- if (bsize <= 0)
- internal_errorf("%s: %s %zd", "shf_write", "bsize", bsize);
-
- while (bsize > 0) {
- if (shf->rnleft == 0 &&
- (shf_fillbuf(shf) == EOF || shf->rnleft == 0))
- break;
- ncopy = shf->rnleft;
- if (ncopy > bsize)
- ncopy = bsize;
- memcpy(buf, shf->rp, ncopy);
- buf += ncopy;
- bsize -= ncopy;
- shf->rp += ncopy;
- shf->rnleft -= ncopy;
- }
- /* Note: fread(3S) returns 0 for errors - this doesn't */
- return (orig_bsize == bsize ? (shf_error(shf) ? EOF : 0) :
- orig_bsize - bsize);
-}
-
-/*
- * Read up to a newline or EOF. The newline is put in buf; buf is always
- * NUL terminated. Returns NULL on read error or if nothing was read
- * before end of file, returns a pointer to the NUL byte in buf
- * otherwise.
- */
-char *
-shf_getse(char *buf, ssize_t bsize, struct shf *shf)
-{
- unsigned char *end;
- ssize_t ncopy;
- char *orig_buf = buf;
-
- if (!(shf->flags & SHF_RD))
- internal_errorf("%s: flags 0x%X", "shf_getse", shf->flags);
-
- if (bsize <= 0)
- return (NULL);
-
- /* save room for NUL */
- --bsize;
- do {
- if (shf->rnleft == 0) {
- if (shf_fillbuf(shf) == EOF)
- return (NULL);
- if (shf->rnleft == 0) {
- *buf = '\0';
- return (buf == orig_buf ? NULL : buf);
- }
- }
- end = (unsigned char *)memchr((char *)shf->rp, '\n',
- shf->rnleft);
- ncopy = end ? end - shf->rp + 1 : shf->rnleft;
- if (ncopy > bsize)
- ncopy = bsize;
- memcpy(buf, (char *) shf->rp, ncopy);
- shf->rp += ncopy;
- shf->rnleft -= ncopy;
- buf += ncopy;
- bsize -= ncopy;
- } while (!end && bsize);
- *buf = '\0';
- return (buf);
-}
-
-/* Returns the char read. Returns EOF for error and end of file. */
-int
-shf_getchar(struct shf *shf)
-{
- if (!(shf->flags & SHF_RD))
- internal_errorf("%s: flags 0x%X", "shf_getchar", shf->flags);
-
- if (shf->rnleft == 0 && (shf_fillbuf(shf) == EOF || shf->rnleft == 0))
- return (EOF);
- --shf->rnleft;
- return (*shf->rp++);
-}
-
-/*
- * Put a character back in the input stream. Returns the character if
- * successful, EOF if there is no room.
- */
-int
-shf_ungetc(int c, struct shf *shf)
-{
- if (!(shf->flags & SHF_RD))
- internal_errorf("%s: flags 0x%X", "shf_ungetc", shf->flags);
-
- if ((shf->flags & SHF_ERROR) || c == EOF ||
- (shf->rp == shf->buf && shf->rnleft))
- return (EOF);
-
- if ((shf->flags & SHF_WRITING) && shf_emptybuf(shf, EB_READSW) == EOF)
- return (EOF);
-
- if (shf->rp == shf->buf)
- shf->rp = shf->buf + shf->rbsize;
- if (shf->flags & SHF_STRING) {
- /*
- * Can unget what was read, but not something different;
- * we don't want to modify a string.
- */
- if ((int)(shf->rp[-1]) != c)
- return (EOF);
- shf->flags &= ~SHF_EOF;
- shf->rp--;
- shf->rnleft++;
- return (c);
- }
- shf->flags &= ~SHF_EOF;
- *--(shf->rp) = c;
- shf->rnleft++;
- return (c);
-}
-
-/*
- * Write a character. Returns the character if successful, EOF if the
- * char could not be written.
- */
-int
-shf_putchar(int c, struct shf *shf)
-{
- if (!(shf->flags & SHF_WR))
- internal_errorf("%s: flags 0x%X", "shf_putchar", shf->flags);
-
- if (c == EOF)
- return (EOF);
-
- if (shf->flags & SHF_UNBUF) {
- unsigned char cc = (unsigned char)c;
- ssize_t n;
-
- if (shf->fd < 0)
- internal_errorf("%s: %s", "shf_putchar", "no fd");
- if (shf->flags & SHF_ERROR) {
- errno = shf->errnosv;
- return (EOF);
- }
- while ((n = write(shf->fd, &cc, 1)) != 1)
- if (n < 0) {
- if (errno == EINTR &&
- !(shf->flags & SHF_INTERRUPT))
- continue;
- shf->flags |= SHF_ERROR;
- shf->errnosv = errno;
- return (EOF);
- }
- } else {
- /* Flush deals with strings and sticky errors */
- if (shf->wnleft == 0 && shf_emptybuf(shf, EB_GROW) == EOF)
- return (EOF);
- shf->wnleft--;
- *shf->wp++ = c;
- }
-
- return (c);
-}
-
-/*
- * Write a string. Returns the length of the string if successful, EOF
- * if the string could not be written.
- */
-ssize_t
-shf_puts(const char *s, struct shf *shf)
-{
- if (!s)
- return (EOF);
-
- return (shf_write(s, strlen(s), shf));
-}
-
-/* Write a buffer. Returns nbytes if successful, EOF if there is an error. */
-ssize_t
-shf_write(const char *buf, ssize_t nbytes, struct shf *shf)
-{
- ssize_t n, ncopy, orig_nbytes = nbytes;
-
- if (!(shf->flags & SHF_WR))
- internal_errorf("%s: flags 0x%X", "shf_write", shf->flags);
-
- if (nbytes < 0)
- internal_errorf("%s: %s %zd", "shf_write", "nbytes", nbytes);
-
- /* Don't buffer if buffer is empty and we're writting a large amount. */
- if ((ncopy = shf->wnleft) &&
- (shf->wp != shf->buf || nbytes < shf->wnleft)) {
- if (ncopy > nbytes)
- ncopy = nbytes;
- memcpy(shf->wp, buf, ncopy);
- nbytes -= ncopy;
- buf += ncopy;
- shf->wp += ncopy;
- shf->wnleft -= ncopy;
- }
- if (nbytes > 0) {
- if (shf->flags & SHF_STRING) {
- /* resize buffer until there's enough space left */
- while (nbytes > shf->wnleft)
- if (shf_emptybuf(shf, EB_GROW) == EOF)
- return (EOF);
- /* then write everything into the buffer */
- } else {
- /* flush deals with sticky errors */
- if (shf_emptybuf(shf, EB_GROW) == EOF)
- return (EOF);
- /* write chunks larger than window size directly */
- if (nbytes > shf->wbsize) {
- ncopy = nbytes;
- if (shf->wbsize)
- ncopy -= nbytes % shf->wbsize;
- nbytes -= ncopy;
- while (ncopy > 0) {
- n = write(shf->fd, buf, ncopy);
- if (n < 0) {
- if (errno == EINTR &&
- !(shf->flags & SHF_INTERRUPT))
- continue;
- shf->flags |= SHF_ERROR;
- shf->errnosv = errno;
- shf->wnleft = 0;
- /*
- * Note: fwrite(3) returns 0
- * for errors - this doesn't
- */
- return (EOF);
- }
- buf += n;
- ncopy -= n;
- }
- }
- /* ... and buffer the rest */
- }
- if (nbytes > 0) {
- /* write remaining bytes to buffer */
- memcpy(shf->wp, buf, nbytes);
- shf->wp += nbytes;
- shf->wnleft -= nbytes;
- }
- }
-
- return (orig_nbytes);
-}
-
-ssize_t
-shf_fprintf(struct shf *shf, const char *fmt, ...)
-{
- va_list args;
- ssize_t n;
-
- va_start(args, fmt);
- n = shf_vfprintf(shf, fmt, args);
- va_end(args);
-
- return (n);
-}
-
-ssize_t
-shf_snprintf(char *buf, ssize_t bsize, const char *fmt, ...)
-{
- struct shf shf;
- va_list args;
- ssize_t n;
-
- if (!buf || bsize <= 0)
- internal_errorf("shf_snprintf: buf %zX, bsize %zd",
- (size_t)buf, bsize);
-
- shf_sopen(buf, bsize, SHF_WR, &shf);
- va_start(args, fmt);
- n = shf_vfprintf(&shf, fmt, args);
- va_end(args);
- /* NUL terminates */
- shf_sclose(&shf);
- return (n);
-}
-
-char *
-shf_smprintf(const char *fmt, ...)
-{
- struct shf shf;
- va_list args;
-
- shf_sopen(NULL, 0, SHF_WR|SHF_DYNAMIC, &shf);
- va_start(args, fmt);
- shf_vfprintf(&shf, fmt, args);
- va_end(args);
- /* NUL terminates */
- return (shf_sclose(&shf));
-}
-
-#define FL_HASH 0x001 /* '#' seen */
-#define FL_PLUS 0x002 /* '+' seen */
-#define FL_RIGHT 0x004 /* '-' seen */
-#define FL_BLANK 0x008 /* ' ' seen */
-#define FL_SHORT 0x010 /* 'h' seen */
-#define FL_LONG 0x020 /* 'l' seen */
-#define FL_ZERO 0x040 /* '0' seen */
-#define FL_DOT 0x080 /* '.' seen */
-#define FL_UPPER 0x100 /* format character was uppercase */
-#define FL_NUMBER 0x200 /* a number was formated %[douxefg] */
-#define FL_SIZET 0x400 /* 'z' seen */
-#define FM_SIZES 0x430 /* h/l/z mask */
-
-ssize_t
-shf_vfprintf(struct shf *shf, const char *fmt, va_list args)
-{
- const char *s;
- char c, *cp;
- int tmp = 0, flags;
- ssize_t field, precision, len;
- unsigned long lnum;
- /* %#o produces the longest output */
- char numbuf[(8 * sizeof(long) + 2) / 3 + 1
-#ifdef DEBUG
- /* a NUL for LLVM/Clang scan-build */
- + 1
-#endif
- ];
- /* this stuff for dealing with the buffer */
- ssize_t nwritten = 0;
-
-#define VA(type) va_arg(args, type)
-
- if (!fmt)
- return (0);
-
- while ((c = *fmt++)) {
- if (c != '%') {
- shf_putc(c, shf);
- nwritten++;
- continue;
- }
- /*
- * This will accept flags/fields in any order - not just
- * the order specified in printf(3), but this is the way
- * _doprnt() seems to work (on BSD and SYSV). The only
- * restriction is that the format character must come
- * last :-).
- */
- flags = 0;
- field = precision = 0;
- for ( ; (c = *fmt++) ; ) {
- switch (c) {
- case '#':
- flags |= FL_HASH;
- continue;
-
- case '+':
- flags |= FL_PLUS;
- continue;
-
- case '-':
- flags |= FL_RIGHT;
- continue;
-
- case ' ':
- flags |= FL_BLANK;
- continue;
-
- case '0':
- if (!(flags & FL_DOT))
- flags |= FL_ZERO;
- continue;
-
- case '.':
- flags |= FL_DOT;
- precision = 0;
- continue;
-
- case '*':
- tmp = VA(int);
- if (flags & FL_DOT)
- precision = tmp;
- else if ((field = tmp) < 0) {
- field = -field;
- flags |= FL_RIGHT;
- }
- continue;
-
- case 'l':
- flags &= ~FM_SIZES;
- flags |= FL_LONG;
- continue;
-
- case 'h':
- flags &= ~FM_SIZES;
- flags |= FL_SHORT;
- continue;
-
- case 'z':
- flags &= ~FM_SIZES;
- flags |= FL_SIZET;
- continue;
- }
- if (ksh_isdigit(c)) {
- bool overflowed = false;
-
- tmp = c - '0';
- while (c = *fmt++, ksh_isdigit(c)) {
- if (notok2mul(2147483647, tmp, 10))
- overflowed = true;
- tmp = tmp * 10 + c - '0';
- }
- --fmt;
- if (overflowed)
- tmp = 0;
- if (flags & FL_DOT)
- precision = tmp;
- else
- field = tmp;
- continue;
- }
- break;
- }
-
- if (precision < 0)
- precision = 0;
-
- if (!c)
- /* nasty format */
- break;
-
- if (c >= 'A' && c <= 'Z') {
- flags |= FL_UPPER;
- c = ksh_tolower(c);
- }
-
- switch (c) {
- case 'd':
- case 'i':
- if (flags & FL_SIZET)
- lnum = (long)VA(ssize_t);
- else if (flags & FL_LONG)
- lnum = VA(long);
- else if (flags & FL_SHORT)
- lnum = (long)(short)VA(int);
- else
- lnum = (long)VA(int);
- goto integral;
-
- case 'o':
- case 'u':
- case 'x':
- if (flags & FL_SIZET)
- lnum = VA(size_t);
- else if (flags & FL_LONG)
- lnum = VA(unsigned long);
- else if (flags & FL_SHORT)
- lnum = (unsigned long)(unsigned short)VA(int);
- else
- lnum = (unsigned long)VA(unsigned int);
-
- integral:
- flags |= FL_NUMBER;
- cp = numbuf + sizeof(numbuf);
-#ifdef DEBUG
- /*
- * this is necessary so Clang 3.2 realises
- * utf_skipcols/shf_putc in the output loop
- * terminate; these values are always ASCII
- * so an out-of-bounds access cannot happen
- * but Clang doesn't know that
- */
- *--cp = '\0';
-#endif
-
- switch (c) {
- case 'd':
- case 'i':
- if (0 > (long)lnum) {
- lnum = -(long)lnum;
- tmp = 1;
- } else
- tmp = 0;
- /* FALLTHROUGH */
- case 'u':
- do {
- *--cp = lnum % 10 + '0';
- lnum /= 10;
- } while (lnum);
-
- if (c != 'u') {
- if (tmp)
- *--cp = '-';
- else if (flags & FL_PLUS)
- *--cp = '+';
- else if (flags & FL_BLANK)
- *--cp = ' ';
- }
- break;
-
- case 'o':
- do {
- *--cp = (lnum & 0x7) + '0';
- lnum >>= 3;
- } while (lnum);
-
- if ((flags & FL_HASH) && *cp != '0')
- *--cp = '0';
- break;
-
- case 'x': {
- const char *digits = (flags & FL_UPPER) ?
- digits_uc : digits_lc;
- do {
- *--cp = digits[lnum & 0xf];
- lnum >>= 4;
- } while (lnum);
-
- if (flags & FL_HASH) {
- *--cp = (flags & FL_UPPER) ? 'X' : 'x';
- *--cp = '0';
- }
- }
- }
- len = numbuf + sizeof(numbuf) - (s = cp);
-#ifdef DEBUG
- /* see above comment for Clang 3.2 */
- --len;
-#endif
- if (flags & FL_DOT) {
- if (precision > len) {
- field = precision;
- flags |= FL_ZERO;
- } else
- /* no loss */
- precision = len;
- }
- break;
-
- case 's':
- if ((s = VA(const char *)) == NULL)
- s = "(null)";
- else if (flags & FL_HASH) {
- print_value_quoted(shf, s);
- continue;
- }
- len = utf_mbswidth(s);
- break;
-
- case 'c':
- flags &= ~FL_DOT;
- c = (char)(VA(int));
- /* FALLTHROUGH */
-
- case '%':
- default:
- numbuf[0] = c;
- numbuf[1] = 0;
- s = numbuf;
- len = 1;
- break;
- }
-
- /*
- * At this point s should point to a string that is to be
- * formatted, and len should be the length of the string.
- */
- if (!(flags & FL_DOT) || len < precision)
- precision = len;
- if (field > precision) {
- field -= precision;
- if (!(flags & FL_RIGHT)) {
- field = -field;
- /* skip past sign or 0x when padding with 0 */
- if ((flags & FL_ZERO) && (flags & FL_NUMBER)) {
- if (*s == '+' || *s == '-' ||
- *s == ' ') {
- shf_putc(*s, shf);
- s++;
- precision--;
- nwritten++;
- } else if (*s == '0') {
- shf_putc(*s, shf);
- s++;
- nwritten++;
- if (--precision > 0 &&
- (*s | 0x20) == 'x') {
- shf_putc(*s, shf);
- s++;
- precision--;
- nwritten++;
- }
- }
- c = '0';
- } else
- c = flags & FL_ZERO ? '0' : ' ';
- if (field < 0) {
- nwritten += -field;
- for ( ; field < 0 ; field++)
- shf_putc(c, shf);
- }
- } else
- c = ' ';
- } else
- field = 0;
-
- if (precision > 0) {
- const char *q;
-
- nwritten += precision;
- q = utf_skipcols(s, precision);
- do {
- shf_putc(*s, shf);
- } while (++s < q);
- }
- if (field > 0) {
- nwritten += field;
- for ( ; field > 0 ; --field)
- shf_putc(c, shf);
- }
- }
-
- return (shf_error(shf) ? EOF : nwritten);
-}
-
-#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
-int
-shf_getc(struct shf *shf)
-{
- return (shf_getc_i(shf));
-}
-
-int
-shf_putc(int c, struct shf *shf)
-{
- return (shf_putc_i(c, shf));
-}
-#endif
-
-#ifdef DEBUG
-const char *
-cstrerror(int errnum)
-{
-#undef strerror
- return (strerror(errnum));
-#define strerror dontuse_strerror /* poisoned */
-}
-#elif !HAVE_STRERROR
-
-#if HAVE_SYS_ERRLIST
-#if !HAVE_SYS_ERRLIST_DECL
-extern const int sys_nerr;
-extern const char * const sys_errlist[];
-#endif
-#endif
-
-const char *
-cstrerror(int errnum)
-{
- /* "Unknown error: " + sign + rough estimate + NUL */
- static char errbuf[15 + 1 + (8 * sizeof(int) + 2) / 3 + 1];
-
-#if HAVE_SYS_ERRLIST
- if (errnum > 0 && errnum < sys_nerr && sys_errlist[errnum])
- return (sys_errlist[errnum]);
-#endif
-
- switch (errnum) {
- case 0:
- return ("Undefined error: 0");
-#ifdef EPERM
- case EPERM:
- return ("Operation not permitted");
-#endif
-#ifdef ENOENT
- case ENOENT:
- return ("No such file or directory");
-#endif
-#ifdef ESRCH
- case ESRCH:
- return ("No such process");
-#endif
-#ifdef E2BIG
- case E2BIG:
- return ("Argument list too long");
-#endif
-#ifdef ENOEXEC
- case ENOEXEC:
- return ("Exec format error");
-#endif
-#ifdef ENOMEM
- case ENOMEM:
- return ("Cannot allocate memory");
-#endif
-#ifdef EACCES
- case EACCES:
- return ("Permission denied");
-#endif
-#ifdef ENOTDIR
- case ENOTDIR:
- return ("Not a directory");
-#endif
-#ifdef EINVAL
- case EINVAL:
- return ("Invalid argument");
-#endif
-#ifdef ELOOP
- case ELOOP:
- return ("Too many levels of symbolic links");
-#endif
- default:
- shf_snprintf(errbuf, sizeof(errbuf),
- "Unknown error: %d", errnum);
- return (errbuf);
- }
-}
-#endif
Copied: vendor/MirOS/mksh/R50/shf.c (from rev 6707, vendor/MirOS/mksh/dist/shf.c)
===================================================================
--- vendor/MirOS/mksh/R50/shf.c (rev 0)
+++ vendor/MirOS/mksh/R50/shf.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1165 @@
+/* $OpenBSD: shf.c,v 1.16 2013/04/19 17:36:09 millert Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2011,
+ * 2012, 2013
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ *-
+ * Use %zX instead of %p and floating point isn't supported at all.
+ */
+
+#include "sh.h"
+
+__RCSID("$MirOS: src/bin/mksh/shf.c,v 1.62 2013/10/09 11:59:30 tg Exp $");
+
+/* flags to shf_emptybuf() */
+#define EB_READSW 0x01 /* about to switch to reading */
+#define EB_GROW 0x02 /* grow buffer if necessary (STRING+DYNAMIC) */
+
+/*
+ * Replacement stdio routines. Stdio is too flakey on too many machines
+ * to be useful when you have multiple processes using the same underlying
+ * file descriptors.
+ */
+
+static int shf_fillbuf(struct shf *);
+static int shf_emptybuf(struct shf *, int);
+
+/*
+ * Open a file. First three args are for open(), last arg is flags for
+ * this package. Returns NULL if file could not be opened, or if a dup
+ * fails.
+ */
+struct shf *
+shf_open(const char *name, int oflags, int mode, int sflags)
+{
+ struct shf *shf;
+ ssize_t bsize =
+ /* at most 512 */
+ sflags & SHF_UNBUF ? (sflags & SHF_RD ? 1 : 0) : SHF_BSIZE;
+ int fd, eno;
+
+ /* Done before open so if alloca fails, fd won't be lost. */
+ shf = alloc(sizeof(struct shf) + bsize, ATEMP);
+ shf->areap = ATEMP;
+ shf->buf = (unsigned char *)&shf[1];
+ shf->bsize = bsize;
+ shf->flags = SHF_ALLOCS;
+ /* Rest filled in by reopen. */
+
+ fd = open(name, oflags | O_BINARY, mode);
+ if (fd < 0) {
+ eno = errno;
+ afree(shf, shf->areap);
+ errno = eno;
+ return (NULL);
+ }
+ if ((sflags & SHF_MAPHI) && fd < FDBASE) {
+ int nfd;
+
+ nfd = fcntl(fd, F_DUPFD, FDBASE);
+ eno = errno;
+ close(fd);
+ if (nfd < 0) {
+ afree(shf, shf->areap);
+ errno = eno;
+ return (NULL);
+ }
+ fd = nfd;
+ }
+ sflags &= ~SHF_ACCMODE;
+ sflags |= (oflags & O_ACCMODE) == O_RDONLY ? SHF_RD :
+ ((oflags & O_ACCMODE) == O_WRONLY ? SHF_WR : SHF_RDWR);
+
+ return (shf_reopen(fd, sflags, shf));
+}
+
+/* helper function for shf_fdopen and shf_reopen */
+static void
+shf_open_hlp(int fd, int *sflagsp, const char *where)
+{
+ int sflags = *sflagsp;
+
+ /* use fcntl() to figure out correct read/write flags */
+ if (sflags & SHF_GETFL) {
+ int flags = fcntl(fd, F_GETFL, 0);
+
+ if (flags < 0)
+ /* will get an error on first read/write */
+ sflags |= SHF_RDWR;
+ else {
+ switch (flags & O_ACCMODE) {
+ case O_RDONLY:
+ sflags |= SHF_RD;
+ break;
+ case O_WRONLY:
+ sflags |= SHF_WR;
+ break;
+ case O_RDWR:
+ sflags |= SHF_RDWR;
+ break;
+ }
+ }
+ *sflagsp = sflags;
+ }
+
+ if (!(sflags & (SHF_RD | SHF_WR)))
+ internal_errorf("%s: %s", where, "missing read/write");
+}
+
+/* Set up the shf structure for a file descriptor. Doesn't fail. */
+struct shf *
+shf_fdopen(int fd, int sflags, struct shf *shf)
+{
+ ssize_t bsize =
+ /* at most 512 */
+ sflags & SHF_UNBUF ? (sflags & SHF_RD ? 1 : 0) : SHF_BSIZE;
+
+ shf_open_hlp(fd, &sflags, "shf_fdopen");
+ if (shf) {
+ if (bsize) {
+ shf->buf = alloc(bsize, ATEMP);
+ sflags |= SHF_ALLOCB;
+ } else
+ shf->buf = NULL;
+ } else {
+ shf = alloc(sizeof(struct shf) + bsize, ATEMP);
+ shf->buf = (unsigned char *)&shf[1];
+ sflags |= SHF_ALLOCS;
+ }
+ shf->areap = ATEMP;
+ shf->fd = fd;
+ shf->rp = shf->wp = shf->buf;
+ shf->rnleft = 0;
+ shf->rbsize = bsize;
+ shf->wnleft = 0; /* force call to shf_emptybuf() */
+ shf->wbsize = sflags & SHF_UNBUF ? 0 : bsize;
+ shf->flags = sflags;
+ shf->errnosv = 0;
+ shf->bsize = bsize;
+ if (sflags & SHF_CLEXEC)
+ fcntl(fd, F_SETFD, FD_CLOEXEC);
+ return (shf);
+}
+
+/* Set up an existing shf (and buffer) to use the given fd */
+struct shf *
+shf_reopen(int fd, int sflags, struct shf *shf)
+{
+ ssize_t bsize =
+ /* at most 512 */
+ sflags & SHF_UNBUF ? (sflags & SHF_RD ? 1 : 0) : SHF_BSIZE;
+
+ shf_open_hlp(fd, &sflags, "shf_reopen");
+ if (!shf || !shf->buf || shf->bsize < bsize)
+ internal_errorf("%s: %s", "shf_reopen", "bad shf/buf/bsize");
+
+ /* assumes shf->buf and shf->bsize already set up */
+ shf->fd = fd;
+ shf->rp = shf->wp = shf->buf;
+ shf->rnleft = 0;
+ shf->rbsize = bsize;
+ shf->wnleft = 0; /* force call to shf_emptybuf() */
+ shf->wbsize = sflags & SHF_UNBUF ? 0 : bsize;
+ shf->flags = (shf->flags & (SHF_ALLOCS | SHF_ALLOCB)) | sflags;
+ shf->errnosv = 0;
+ if (sflags & SHF_CLEXEC)
+ fcntl(fd, F_SETFD, FD_CLOEXEC);
+ return (shf);
+}
+
+/*
+ * Open a string for reading or writing. If reading, bsize is the number
+ * of bytes that can be read. If writing, bsize is the maximum number of
+ * bytes that can be written. If shf is not NULL, it is filled in and
+ * returned, if it is NULL, shf is allocated. If writing and buf is NULL
+ * and SHF_DYNAMIC is set, the buffer is allocated (if bsize > 0, it is
+ * used for the initial size). Doesn't fail.
+ * When writing, a byte is reserved for a trailing NUL - see shf_sclose().
+ */
+struct shf *
+shf_sopen(char *buf, ssize_t bsize, int sflags, struct shf *shf)
+{
+ /* can't have a read+write string */
+ if (!(!(sflags & SHF_RD) ^ !(sflags & SHF_WR)))
+ internal_errorf("%s: flags 0x%X", "shf_sopen", sflags);
+
+ if (!shf) {
+ shf = alloc(sizeof(struct shf), ATEMP);
+ sflags |= SHF_ALLOCS;
+ }
+ shf->areap = ATEMP;
+ if (!buf && (sflags & SHF_WR) && (sflags & SHF_DYNAMIC)) {
+ if (bsize <= 0)
+ bsize = 64;
+ sflags |= SHF_ALLOCB;
+ buf = alloc(bsize, shf->areap);
+ }
+ shf->fd = -1;
+ shf->buf = shf->rp = shf->wp = (unsigned char *)buf;
+ shf->rnleft = bsize;
+ shf->rbsize = bsize;
+ shf->wnleft = bsize - 1; /* space for a '\0' */
+ shf->wbsize = bsize;
+ shf->flags = sflags | SHF_STRING;
+ shf->errnosv = 0;
+ shf->bsize = bsize;
+
+ return (shf);
+}
+
+/* Flush and close file descriptor, free the shf structure */
+int
+shf_close(struct shf *shf)
+{
+ int ret = 0;
+
+ if (shf->fd >= 0) {
+ ret = shf_flush(shf);
+ if (close(shf->fd) < 0)
+ ret = EOF;
+ }
+ if (shf->flags & SHF_ALLOCS)
+ afree(shf, shf->areap);
+ else if (shf->flags & SHF_ALLOCB)
+ afree(shf->buf, shf->areap);
+
+ return (ret);
+}
+
+/* Flush and close file descriptor, don't free file structure */
+int
+shf_fdclose(struct shf *shf)
+{
+ int ret = 0;
+
+ if (shf->fd >= 0) {
+ ret = shf_flush(shf);
+ if (close(shf->fd) < 0)
+ ret = EOF;
+ shf->rnleft = 0;
+ shf->rp = shf->buf;
+ shf->wnleft = 0;
+ shf->fd = -1;
+ }
+
+ return (ret);
+}
+
+/*
+ * Close a string - if it was opened for writing, it is NUL terminated;
+ * returns a pointer to the string and frees shf if it was allocated
+ * (does not free string if it was allocated).
+ */
+char *
+shf_sclose(struct shf *shf)
+{
+ unsigned char *s = shf->buf;
+
+ /* NUL terminate */
+ if (shf->flags & SHF_WR) {
+ shf->wnleft++;
+ shf_putc('\0', shf);
+ }
+ if (shf->flags & SHF_ALLOCS)
+ afree(shf, shf->areap);
+ return ((char *)s);
+}
+
+/*
+ * Un-read what has been read but not examined, or write what has been
+ * buffered. Returns 0 for success, EOF for (write) error.
+ */
+int
+shf_flush(struct shf *shf)
+{
+ if (shf->flags & SHF_STRING)
+ return ((shf->flags & SHF_WR) ? EOF : 0);
+
+ if (shf->fd < 0)
+ internal_errorf("%s: %s", "shf_flush", "no fd");
+
+ if (shf->flags & SHF_ERROR) {
+ errno = shf->errnosv;
+ return (EOF);
+ }
+
+ if (shf->flags & SHF_READING) {
+ shf->flags &= ~(SHF_EOF | SHF_READING);
+ if (shf->rnleft > 0) {
+ lseek(shf->fd, (off_t)-shf->rnleft, SEEK_CUR);
+ shf->rnleft = 0;
+ shf->rp = shf->buf;
+ }
+ return (0);
+ } else if (shf->flags & SHF_WRITING)
+ return (shf_emptybuf(shf, 0));
+
+ return (0);
+}
+
+/*
+ * Write out any buffered data. If currently reading, flushes the read
+ * buffer. Returns 0 for success, EOF for (write) error.
+ */
+static int
+shf_emptybuf(struct shf *shf, int flags)
+{
+ int ret = 0;
+
+ if (!(shf->flags & SHF_STRING) && shf->fd < 0)
+ internal_errorf("%s: %s", "shf_emptybuf", "no fd");
+
+ if (shf->flags & SHF_ERROR) {
+ errno = shf->errnosv;
+ return (EOF);
+ }
+
+ if (shf->flags & SHF_READING) {
+ if (flags & EB_READSW)
+ /* doesn't happen */
+ return (0);
+ ret = shf_flush(shf);
+ shf->flags &= ~SHF_READING;
+ }
+ if (shf->flags & SHF_STRING) {
+ unsigned char *nbuf;
+
+ /*
+ * Note that we assume SHF_ALLOCS is not set if
+ * SHF_ALLOCB is set... (changing the shf pointer could
+ * cause problems)
+ */
+ if (!(flags & EB_GROW) || !(shf->flags & SHF_DYNAMIC) ||
+ !(shf->flags & SHF_ALLOCB))
+ return (EOF);
+ /* allocate more space for buffer */
+ nbuf = aresize2(shf->buf, 2, shf->wbsize, shf->areap);
+ shf->rp = nbuf + (shf->rp - shf->buf);
+ shf->wp = nbuf + (shf->wp - shf->buf);
+ shf->rbsize += shf->wbsize;
+ shf->wnleft += shf->wbsize;
+ shf->wbsize <<= 1;
+ shf->buf = nbuf;
+ } else {
+ if (shf->flags & SHF_WRITING) {
+ ssize_t n, ntowrite = shf->wp - shf->buf;
+ unsigned char *buf = shf->buf;
+
+ while (ntowrite > 0) {
+ n = write(shf->fd, buf, ntowrite);
+ if (n < 0) {
+ if (errno == EINTR &&
+ !(shf->flags & SHF_INTERRUPT))
+ continue;
+ shf->flags |= SHF_ERROR;
+ shf->errnosv = errno;
+ shf->wnleft = 0;
+ if (buf != shf->buf) {
+ /*
+ * allow a second flush
+ * to work
+ */
+ memmove(shf->buf, buf,
+ ntowrite);
+ shf->wp = shf->buf + ntowrite;
+ }
+ return (EOF);
+ }
+ buf += n;
+ ntowrite -= n;
+ }
+ if (flags & EB_READSW) {
+ shf->wp = shf->buf;
+ shf->wnleft = 0;
+ shf->flags &= ~SHF_WRITING;
+ return (0);
+ }
+ }
+ shf->wp = shf->buf;
+ shf->wnleft = shf->wbsize;
+ }
+ shf->flags |= SHF_WRITING;
+
+ return (ret);
+}
+
+/* Fill up a read buffer. Returns EOF for a read error, 0 otherwise. */
+static int
+shf_fillbuf(struct shf *shf)
+{
+ ssize_t n;
+
+ if (shf->flags & SHF_STRING)
+ return (0);
+
+ if (shf->fd < 0)
+ internal_errorf("%s: %s", "shf_fillbuf", "no fd");
+
+ if (shf->flags & (SHF_EOF | SHF_ERROR)) {
+ if (shf->flags & SHF_ERROR)
+ errno = shf->errnosv;
+ return (EOF);
+ }
+
+ if ((shf->flags & SHF_WRITING) && shf_emptybuf(shf, EB_READSW) == EOF)
+ return (EOF);
+
+ shf->flags |= SHF_READING;
+
+ shf->rp = shf->buf;
+ while (/* CONSTCOND */ 1) {
+ n = blocking_read(shf->fd, (char *)shf->buf, shf->rbsize);
+ if (n < 0 && errno == EINTR && !(shf->flags & SHF_INTERRUPT))
+ continue;
+ break;
+ }
+ if (n < 0) {
+ shf->flags |= SHF_ERROR;
+ shf->errnosv = errno;
+ shf->rnleft = 0;
+ shf->rp = shf->buf;
+ return (EOF);
+ }
+ if ((shf->rnleft = n) == 0)
+ shf->flags |= SHF_EOF;
+ return (0);
+}
+
+/*
+ * Read a buffer from shf. Returns the number of bytes read into buf, if
+ * no bytes were read, returns 0 if end of file was seen, EOF if a read
+ * error occurred.
+ */
+ssize_t
+shf_read(char *buf, ssize_t bsize, struct shf *shf)
+{
+ ssize_t ncopy, orig_bsize = bsize;
+
+ if (!(shf->flags & SHF_RD))
+ internal_errorf("%s: flags 0x%X", "shf_read", shf->flags);
+
+ if (bsize <= 0)
+ internal_errorf("%s: %s %zd", "shf_write", "bsize", bsize);
+
+ while (bsize > 0) {
+ if (shf->rnleft == 0 &&
+ (shf_fillbuf(shf) == EOF || shf->rnleft == 0))
+ break;
+ ncopy = shf->rnleft;
+ if (ncopy > bsize)
+ ncopy = bsize;
+ memcpy(buf, shf->rp, ncopy);
+ buf += ncopy;
+ bsize -= ncopy;
+ shf->rp += ncopy;
+ shf->rnleft -= ncopy;
+ }
+ /* Note: fread(3S) returns 0 for errors - this doesn't */
+ return (orig_bsize == bsize ? (shf_error(shf) ? EOF : 0) :
+ orig_bsize - bsize);
+}
+
+/*
+ * Read up to a newline or EOF. The newline is put in buf; buf is always
+ * NUL terminated. Returns NULL on read error or if nothing was read
+ * before end of file, returns a pointer to the NUL byte in buf
+ * otherwise.
+ */
+char *
+shf_getse(char *buf, ssize_t bsize, struct shf *shf)
+{
+ unsigned char *end;
+ ssize_t ncopy;
+ char *orig_buf = buf;
+
+ if (!(shf->flags & SHF_RD))
+ internal_errorf("%s: flags 0x%X", "shf_getse", shf->flags);
+
+ if (bsize <= 0)
+ return (NULL);
+
+ /* save room for NUL */
+ --bsize;
+ do {
+ if (shf->rnleft == 0) {
+ if (shf_fillbuf(shf) == EOF)
+ return (NULL);
+ if (shf->rnleft == 0) {
+ *buf = '\0';
+ return (buf == orig_buf ? NULL : buf);
+ }
+ }
+ end = (unsigned char *)memchr((char *)shf->rp, '\n',
+ shf->rnleft);
+ ncopy = end ? end - shf->rp + 1 : shf->rnleft;
+ if (ncopy > bsize)
+ ncopy = bsize;
+ memcpy(buf, (char *) shf->rp, ncopy);
+ shf->rp += ncopy;
+ shf->rnleft -= ncopy;
+ buf += ncopy;
+ bsize -= ncopy;
+ } while (!end && bsize);
+ *buf = '\0';
+ return (buf);
+}
+
+/* Returns the char read. Returns EOF for error and end of file. */
+int
+shf_getchar(struct shf *shf)
+{
+ if (!(shf->flags & SHF_RD))
+ internal_errorf("%s: flags 0x%X", "shf_getchar", shf->flags);
+
+ if (shf->rnleft == 0 && (shf_fillbuf(shf) == EOF || shf->rnleft == 0))
+ return (EOF);
+ --shf->rnleft;
+ return (*shf->rp++);
+}
+
+/*
+ * Put a character back in the input stream. Returns the character if
+ * successful, EOF if there is no room.
+ */
+int
+shf_ungetc(int c, struct shf *shf)
+{
+ if (!(shf->flags & SHF_RD))
+ internal_errorf("%s: flags 0x%X", "shf_ungetc", shf->flags);
+
+ if ((shf->flags & SHF_ERROR) || c == EOF ||
+ (shf->rp == shf->buf && shf->rnleft))
+ return (EOF);
+
+ if ((shf->flags & SHF_WRITING) && shf_emptybuf(shf, EB_READSW) == EOF)
+ return (EOF);
+
+ if (shf->rp == shf->buf)
+ shf->rp = shf->buf + shf->rbsize;
+ if (shf->flags & SHF_STRING) {
+ /*
+ * Can unget what was read, but not something different;
+ * we don't want to modify a string.
+ */
+ if ((int)(shf->rp[-1]) != c)
+ return (EOF);
+ shf->flags &= ~SHF_EOF;
+ shf->rp--;
+ shf->rnleft++;
+ return (c);
+ }
+ shf->flags &= ~SHF_EOF;
+ *--(shf->rp) = c;
+ shf->rnleft++;
+ return (c);
+}
+
+/*
+ * Write a character. Returns the character if successful, EOF if the
+ * char could not be written.
+ */
+int
+shf_putchar(int c, struct shf *shf)
+{
+ if (!(shf->flags & SHF_WR))
+ internal_errorf("%s: flags 0x%X", "shf_putchar", shf->flags);
+
+ if (c == EOF)
+ return (EOF);
+
+ if (shf->flags & SHF_UNBUF) {
+ unsigned char cc = (unsigned char)c;
+ ssize_t n;
+
+ if (shf->fd < 0)
+ internal_errorf("%s: %s", "shf_putchar", "no fd");
+ if (shf->flags & SHF_ERROR) {
+ errno = shf->errnosv;
+ return (EOF);
+ }
+ while ((n = write(shf->fd, &cc, 1)) != 1)
+ if (n < 0) {
+ if (errno == EINTR &&
+ !(shf->flags & SHF_INTERRUPT))
+ continue;
+ shf->flags |= SHF_ERROR;
+ shf->errnosv = errno;
+ return (EOF);
+ }
+ } else {
+ /* Flush deals with strings and sticky errors */
+ if (shf->wnleft == 0 && shf_emptybuf(shf, EB_GROW) == EOF)
+ return (EOF);
+ shf->wnleft--;
+ *shf->wp++ = c;
+ }
+
+ return (c);
+}
+
+/*
+ * Write a string. Returns the length of the string if successful, EOF
+ * if the string could not be written.
+ */
+ssize_t
+shf_puts(const char *s, struct shf *shf)
+{
+ if (!s)
+ return (EOF);
+
+ return (shf_write(s, strlen(s), shf));
+}
+
+/* Write a buffer. Returns nbytes if successful, EOF if there is an error. */
+ssize_t
+shf_write(const char *buf, ssize_t nbytes, struct shf *shf)
+{
+ ssize_t n, ncopy, orig_nbytes = nbytes;
+
+ if (!(shf->flags & SHF_WR))
+ internal_errorf("%s: flags 0x%X", "shf_write", shf->flags);
+
+ if (nbytes < 0)
+ internal_errorf("%s: %s %zd", "shf_write", "nbytes", nbytes);
+
+ /* Don't buffer if buffer is empty and we're writting a large amount. */
+ if ((ncopy = shf->wnleft) &&
+ (shf->wp != shf->buf || nbytes < shf->wnleft)) {
+ if (ncopy > nbytes)
+ ncopy = nbytes;
+ memcpy(shf->wp, buf, ncopy);
+ nbytes -= ncopy;
+ buf += ncopy;
+ shf->wp += ncopy;
+ shf->wnleft -= ncopy;
+ }
+ if (nbytes > 0) {
+ if (shf->flags & SHF_STRING) {
+ /* resize buffer until there's enough space left */
+ while (nbytes > shf->wnleft)
+ if (shf_emptybuf(shf, EB_GROW) == EOF)
+ return (EOF);
+ /* then write everything into the buffer */
+ } else {
+ /* flush deals with sticky errors */
+ if (shf_emptybuf(shf, EB_GROW) == EOF)
+ return (EOF);
+ /* write chunks larger than window size directly */
+ if (nbytes > shf->wbsize) {
+ ncopy = nbytes;
+ if (shf->wbsize)
+ ncopy -= nbytes % shf->wbsize;
+ nbytes -= ncopy;
+ while (ncopy > 0) {
+ n = write(shf->fd, buf, ncopy);
+ if (n < 0) {
+ if (errno == EINTR &&
+ !(shf->flags & SHF_INTERRUPT))
+ continue;
+ shf->flags |= SHF_ERROR;
+ shf->errnosv = errno;
+ shf->wnleft = 0;
+ /*
+ * Note: fwrite(3) returns 0
+ * for errors - this doesn't
+ */
+ return (EOF);
+ }
+ buf += n;
+ ncopy -= n;
+ }
+ }
+ /* ... and buffer the rest */
+ }
+ if (nbytes > 0) {
+ /* write remaining bytes to buffer */
+ memcpy(shf->wp, buf, nbytes);
+ shf->wp += nbytes;
+ shf->wnleft -= nbytes;
+ }
+ }
+
+ return (orig_nbytes);
+}
+
+ssize_t
+shf_fprintf(struct shf *shf, const char *fmt, ...)
+{
+ va_list args;
+ ssize_t n;
+
+ va_start(args, fmt);
+ n = shf_vfprintf(shf, fmt, args);
+ va_end(args);
+
+ return (n);
+}
+
+ssize_t
+shf_snprintf(char *buf, ssize_t bsize, const char *fmt, ...)
+{
+ struct shf shf;
+ va_list args;
+ ssize_t n;
+
+ if (!buf || bsize <= 0)
+ internal_errorf("shf_snprintf: buf %zX, bsize %zd",
+ (size_t)buf, bsize);
+
+ shf_sopen(buf, bsize, SHF_WR, &shf);
+ va_start(args, fmt);
+ n = shf_vfprintf(&shf, fmt, args);
+ va_end(args);
+ /* NUL terminates */
+ shf_sclose(&shf);
+ return (n);
+}
+
+char *
+shf_smprintf(const char *fmt, ...)
+{
+ struct shf shf;
+ va_list args;
+
+ shf_sopen(NULL, 0, SHF_WR|SHF_DYNAMIC, &shf);
+ va_start(args, fmt);
+ shf_vfprintf(&shf, fmt, args);
+ va_end(args);
+ /* NUL terminates */
+ return (shf_sclose(&shf));
+}
+
+#define FL_HASH 0x001 /* '#' seen */
+#define FL_PLUS 0x002 /* '+' seen */
+#define FL_RIGHT 0x004 /* '-' seen */
+#define FL_BLANK 0x008 /* ' ' seen */
+#define FL_SHORT 0x010 /* 'h' seen */
+#define FL_LONG 0x020 /* 'l' seen */
+#define FL_ZERO 0x040 /* '0' seen */
+#define FL_DOT 0x080 /* '.' seen */
+#define FL_UPPER 0x100 /* format character was uppercase */
+#define FL_NUMBER 0x200 /* a number was formated %[douxefg] */
+#define FL_SIZET 0x400 /* 'z' seen */
+#define FM_SIZES 0x430 /* h/l/z mask */
+
+ssize_t
+shf_vfprintf(struct shf *shf, const char *fmt, va_list args)
+{
+ const char *s;
+ char c, *cp;
+ int tmp = 0, flags;
+ ssize_t field, precision, len;
+ unsigned long lnum;
+ /* %#o produces the longest output */
+ char numbuf[(8 * sizeof(long) + 2) / 3 + 1
+#ifdef DEBUG
+ /* a NUL for LLVM/Clang scan-build */
+ + 1
+#endif
+ ];
+ /* this stuff for dealing with the buffer */
+ ssize_t nwritten = 0;
+
+#define VA(type) va_arg(args, type)
+
+ if (!fmt)
+ return (0);
+
+ while ((c = *fmt++)) {
+ if (c != '%') {
+ shf_putc(c, shf);
+ nwritten++;
+ continue;
+ }
+ /*
+ * This will accept flags/fields in any order - not just
+ * the order specified in printf(3), but this is the way
+ * _doprnt() seems to work (on BSD and SYSV). The only
+ * restriction is that the format character must come
+ * last :-).
+ */
+ flags = 0;
+ field = precision = 0;
+ for ( ; (c = *fmt++) ; ) {
+ switch (c) {
+ case '#':
+ flags |= FL_HASH;
+ continue;
+
+ case '+':
+ flags |= FL_PLUS;
+ continue;
+
+ case '-':
+ flags |= FL_RIGHT;
+ continue;
+
+ case ' ':
+ flags |= FL_BLANK;
+ continue;
+
+ case '0':
+ if (!(flags & FL_DOT))
+ flags |= FL_ZERO;
+ continue;
+
+ case '.':
+ flags |= FL_DOT;
+ precision = 0;
+ continue;
+
+ case '*':
+ tmp = VA(int);
+ if (flags & FL_DOT)
+ precision = tmp;
+ else if ((field = tmp) < 0) {
+ field = -field;
+ flags |= FL_RIGHT;
+ }
+ continue;
+
+ case 'l':
+ flags &= ~FM_SIZES;
+ flags |= FL_LONG;
+ continue;
+
+ case 'h':
+ flags &= ~FM_SIZES;
+ flags |= FL_SHORT;
+ continue;
+
+ case 'z':
+ flags &= ~FM_SIZES;
+ flags |= FL_SIZET;
+ continue;
+ }
+ if (ksh_isdigit(c)) {
+ bool overflowed = false;
+
+ tmp = c - '0';
+ while (c = *fmt++, ksh_isdigit(c)) {
+ if (notok2mul(2147483647, tmp, 10))
+ overflowed = true;
+ tmp = tmp * 10 + c - '0';
+ }
+ --fmt;
+ if (overflowed)
+ tmp = 0;
+ if (flags & FL_DOT)
+ precision = tmp;
+ else
+ field = tmp;
+ continue;
+ }
+ break;
+ }
+
+ if (precision < 0)
+ precision = 0;
+
+ if (!c)
+ /* nasty format */
+ break;
+
+ if (c >= 'A' && c <= 'Z') {
+ flags |= FL_UPPER;
+ c = ksh_tolower(c);
+ }
+
+ switch (c) {
+ case 'd':
+ case 'i':
+ if (flags & FL_SIZET)
+ lnum = (long)VA(ssize_t);
+ else if (flags & FL_LONG)
+ lnum = VA(long);
+ else if (flags & FL_SHORT)
+ lnum = (long)(short)VA(int);
+ else
+ lnum = (long)VA(int);
+ goto integral;
+
+ case 'o':
+ case 'u':
+ case 'x':
+ if (flags & FL_SIZET)
+ lnum = VA(size_t);
+ else if (flags & FL_LONG)
+ lnum = VA(unsigned long);
+ else if (flags & FL_SHORT)
+ lnum = (unsigned long)(unsigned short)VA(int);
+ else
+ lnum = (unsigned long)VA(unsigned int);
+
+ integral:
+ flags |= FL_NUMBER;
+ cp = numbuf + sizeof(numbuf);
+#ifdef DEBUG
+ /*
+ * this is necessary so Clang 3.2 realises
+ * utf_skipcols/shf_putc in the output loop
+ * terminate; these values are always ASCII
+ * so an out-of-bounds access cannot happen
+ * but Clang doesn't know that
+ */
+ *--cp = '\0';
+#endif
+
+ switch (c) {
+ case 'd':
+ case 'i':
+ if (0 > (long)lnum) {
+ lnum = -(long)lnum;
+ tmp = 1;
+ } else
+ tmp = 0;
+ /* FALLTHROUGH */
+ case 'u':
+ do {
+ *--cp = lnum % 10 + '0';
+ lnum /= 10;
+ } while (lnum);
+
+ if (c != 'u') {
+ if (tmp)
+ *--cp = '-';
+ else if (flags & FL_PLUS)
+ *--cp = '+';
+ else if (flags & FL_BLANK)
+ *--cp = ' ';
+ }
+ break;
+
+ case 'o':
+ do {
+ *--cp = (lnum & 0x7) + '0';
+ lnum >>= 3;
+ } while (lnum);
+
+ if ((flags & FL_HASH) && *cp != '0')
+ *--cp = '0';
+ break;
+
+ case 'x': {
+ const char *digits = (flags & FL_UPPER) ?
+ digits_uc : digits_lc;
+ do {
+ *--cp = digits[lnum & 0xf];
+ lnum >>= 4;
+ } while (lnum);
+
+ if (flags & FL_HASH) {
+ *--cp = (flags & FL_UPPER) ? 'X' : 'x';
+ *--cp = '0';
+ }
+ }
+ }
+ len = numbuf + sizeof(numbuf) - (s = cp);
+#ifdef DEBUG
+ /* see above comment for Clang 3.2 */
+ --len;
+#endif
+ if (flags & FL_DOT) {
+ if (precision > len) {
+ field = precision;
+ flags |= FL_ZERO;
+ } else
+ /* no loss */
+ precision = len;
+ }
+ break;
+
+ case 's':
+ if ((s = VA(const char *)) == NULL)
+ s = "(null)";
+ else if (flags & FL_HASH) {
+ print_value_quoted(shf, s);
+ continue;
+ }
+ len = utf_mbswidth(s);
+ break;
+
+ case 'c':
+ flags &= ~FL_DOT;
+ c = (char)(VA(int));
+ /* FALLTHROUGH */
+
+ case '%':
+ default:
+ numbuf[0] = c;
+ numbuf[1] = 0;
+ s = numbuf;
+ len = 1;
+ break;
+ }
+
+ /*
+ * At this point s should point to a string that is to be
+ * formatted, and len should be the length of the string.
+ */
+ if (!(flags & FL_DOT) || len < precision)
+ precision = len;
+ if (field > precision) {
+ field -= precision;
+ if (!(flags & FL_RIGHT)) {
+ field = -field;
+ /* skip past sign or 0x when padding with 0 */
+ if ((flags & FL_ZERO) && (flags & FL_NUMBER)) {
+ if (*s == '+' || *s == '-' ||
+ *s == ' ') {
+ shf_putc(*s, shf);
+ s++;
+ precision--;
+ nwritten++;
+ } else if (*s == '0') {
+ shf_putc(*s, shf);
+ s++;
+ nwritten++;
+ if (--precision > 0 &&
+ (*s | 0x20) == 'x') {
+ shf_putc(*s, shf);
+ s++;
+ precision--;
+ nwritten++;
+ }
+ }
+ c = '0';
+ } else
+ c = flags & FL_ZERO ? '0' : ' ';
+ if (field < 0) {
+ nwritten += -field;
+ for ( ; field < 0 ; field++)
+ shf_putc(c, shf);
+ }
+ } else
+ c = ' ';
+ } else
+ field = 0;
+
+ if (precision > 0) {
+ const char *q;
+
+ nwritten += precision;
+ q = utf_skipcols(s, precision);
+ do {
+ shf_putc(*s, shf);
+ } while (++s < q);
+ }
+ if (field > 0) {
+ nwritten += field;
+ for ( ; field > 0 ; --field)
+ shf_putc(c, shf);
+ }
+ }
+
+ return (shf_error(shf) ? EOF : nwritten);
+}
+
+#if defined(MKSH_SMALL) && !defined(MKSH_SMALL_BUT_FAST)
+int
+shf_getc(struct shf *shf)
+{
+ return (shf_getc_i(shf));
+}
+
+int
+shf_putc(int c, struct shf *shf)
+{
+ return (shf_putc_i(c, shf));
+}
+#endif
+
+#ifdef DEBUG
+const char *
+cstrerror(int errnum)
+{
+#undef strerror
+ return (strerror(errnum));
+#define strerror dontuse_strerror /* poisoned */
+}
+#elif !HAVE_STRERROR
+
+#if HAVE_SYS_ERRLIST
+#if !HAVE_SYS_ERRLIST_DECL
+extern const int sys_nerr;
+extern const char * const sys_errlist[];
+#endif
+#endif
+
+const char *
+cstrerror(int errnum)
+{
+ /* "Unknown error: " + sign + rough estimate + NUL */
+ static char errbuf[15 + 1 + (8 * sizeof(int) + 2) / 3 + 1];
+
+#if HAVE_SYS_ERRLIST
+ if (errnum > 0 && errnum < sys_nerr && sys_errlist[errnum])
+ return (sys_errlist[errnum]);
+#endif
+
+ switch (errnum) {
+ case 0:
+ return ("Undefined error: 0");
+#ifdef EPERM
+ case EPERM:
+ return ("Operation not permitted");
+#endif
+#ifdef ENOENT
+ case ENOENT:
+ return ("No such file or directory");
+#endif
+#ifdef ESRCH
+ case ESRCH:
+ return ("No such process");
+#endif
+#ifdef E2BIG
+ case E2BIG:
+ return ("Argument list too long");
+#endif
+#ifdef ENOEXEC
+ case ENOEXEC:
+ return ("Exec format error");
+#endif
+#ifdef ENOMEM
+ case ENOMEM:
+ return ("Cannot allocate memory");
+#endif
+#ifdef EACCES
+ case EACCES:
+ return ("Permission denied");
+#endif
+#ifdef ENOTDIR
+ case ENOTDIR:
+ return ("Not a directory");
+#endif
+#ifdef EINVAL
+ case EINVAL:
+ return ("Invalid argument");
+#endif
+#ifdef ELOOP
+ case ELOOP:
+ return ("Too many levels of symbolic links");
+#endif
+ default:
+ shf_snprintf(errbuf, sizeof(errbuf),
+ "Unknown error: %d", errnum);
+ return (errbuf);
+ }
+}
+#endif
Deleted: vendor/MirOS/mksh/R50/strlcpy.c
===================================================================
--- vendor/MirOS/mksh/dist/strlcpy.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/strlcpy.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,52 +0,0 @@
-/*-
- * Copyright (c) 2006, 2008, 2009
- * Thorsten Glaser <tg at mirbsd.org>
- * Copyright (c) 1998 Todd C. Miller <Todd.Miller at courtesan.com>
- *
- * Permission to use, copy, modify, and distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include "sh.h"
-
-__RCSID("$MirOS: src/bin/mksh/strlcpy.c,v 1.7 2009/06/10 18:12:50 tg Rel $");
-
-/*
- * Copy src to string dst of size siz. At most siz-1 characters
- * will be copied. Always NUL terminates (unless siz == 0).
- * Returns strlen(src); if retval >= siz, truncation occurred.
- */
-size_t
-strlcpy(char *dst, const char *src, size_t siz)
-{
- const char *s = src;
-
- if (siz == 0)
- goto traverse_src;
-
- /* copy as many chars as will fit */
- while (--siz && (*dst++ = *s++))
- ;
-
- /* not enough room in dst */
- if (siz == 0) {
- /* safe to NUL-terminate dst since we copied <= siz-1 chars */
- *dst = '\0';
- traverse_src:
- /* traverse rest of src */
- while (*s++)
- ;
- }
-
- /* count does not include NUL */
- return ((size_t)(s - src - 1));
-}
Copied: vendor/MirOS/mksh/R50/strlcpy.c (from rev 6707, vendor/MirOS/mksh/dist/strlcpy.c)
===================================================================
--- vendor/MirOS/mksh/R50/strlcpy.c (rev 0)
+++ vendor/MirOS/mksh/R50/strlcpy.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,53 @@
+/*-
+ * Copyright (c) 2006, 2008, 2009, 2013
+ * Thorsten Glaser <tg at mirbsd.org>
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller at courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "sh.h"
+
+__RCSID("$MirOS: src/bin/mksh/strlcpy.c,v 1.8 2013/11/05 22:10:15 tg Exp $");
+
+/*
+ * Copy src to string dst of size siz. At most siz-1 characters
+ * will be copied. Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+#undef strlcpy
+size_t
+strlcpy(char *dst, const char *src, size_t siz)
+{
+ const char *s = src;
+
+ if (siz == 0)
+ goto traverse_src;
+
+ /* copy as many chars as will fit */
+ while (--siz && (*dst++ = *s++))
+ ;
+
+ /* not enough room in dst */
+ if (siz == 0) {
+ /* safe to NUL-terminate dst since we copied <= siz-1 chars */
+ *dst = '\0';
+ traverse_src:
+ /* traverse rest of src */
+ while (*s++)
+ ;
+ }
+
+ /* count does not include NUL */
+ return ((size_t)(s - src - 1));
+}
Deleted: vendor/MirOS/mksh/R50/syn.c
===================================================================
--- vendor/MirOS/mksh/dist/syn.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/syn.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1181 +0,0 @@
-/* $OpenBSD: syn.c,v 1.29 2013/06/03 18:40:05 jca Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009,
- * 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-
-__RCSID("$MirOS: src/bin/mksh/syn.c,v 1.92 2013/06/03 22:28:17 tg Exp $");
-
-struct nesting_state {
- int start_token; /* token than began nesting (eg, FOR) */
- int start_line; /* line nesting began on */
-};
-
-struct yyrecursive_state {
- struct yyrecursive_state *next;
- struct ioword **old_herep;
- int old_symbol;
- int old_salias;
- int old_nesting_type;
- bool old_reject;
-};
-
-static void yyparse(void);
-static struct op *pipeline(int);
-static struct op *andor(void);
-static struct op *c_list(bool);
-static struct ioword *synio(int);
-static struct op *nested(int, int, int);
-static struct op *get_command(int);
-static struct op *dogroup(void);
-static struct op *thenpart(void);
-static struct op *elsepart(void);
-static struct op *caselist(void);
-static struct op *casepart(int);
-static struct op *function_body(char *, bool);
-static char **wordlist(void);
-static struct op *block(int, struct op *, struct op *);
-static struct op *newtp(int);
-static void syntaxerr(const char *) MKSH_A_NORETURN;
-static void nesting_push(struct nesting_state *, int);
-static void nesting_pop(struct nesting_state *);
-static int assign_command(const char *);
-static int inalias(struct source *);
-static Test_op dbtestp_isa(Test_env *, Test_meta);
-static const char *dbtestp_getopnd(Test_env *, Test_op, bool);
-static int dbtestp_eval(Test_env *, Test_op, const char *,
- const char *, bool);
-static void dbtestp_error(Test_env *, int, const char *) MKSH_A_NORETURN;
-
-static struct op *outtree; /* yyparse output */
-static struct nesting_state nesting; /* \n changed to ; */
-
-static bool reject; /* token(cf) gets symbol again */
-static int symbol; /* yylex value */
-static int sALIAS = ALIAS; /* 0 in yyrecursive */
-
-#define REJECT (reject = true)
-#define ACCEPT (reject = false)
-#define token(cf) ((reject) ? (ACCEPT, symbol) : (symbol = yylex(cf)))
-#define tpeek(cf) ((reject) ? (symbol) : (REJECT, symbol = yylex(cf)))
-#define musthave(c,cf) do { if (token(cf) != (c)) syntaxerr(NULL); } while (/* CONSTCOND */ 0)
-
-static const char Tcbrace[] = "}";
-static const char Tesac[] = "esac";
-
-static void
-yyparse(void)
-{
- int c;
-
- ACCEPT;
-
- outtree = c_list(source->type == SSTRING);
- c = tpeek(0);
- if (c == 0 && !outtree)
- outtree = newtp(TEOF);
- else if (c != '\n' && c != 0)
- syntaxerr(NULL);
-}
-
-static struct op *
-pipeline(int cf)
-{
- struct op *t, *p, *tl = NULL;
-
- t = get_command(cf);
- if (t != NULL) {
- while (token(0) == '|') {
- if ((p = get_command(CONTIN)) == NULL)
- syntaxerr(NULL);
- if (tl == NULL)
- t = tl = block(TPIPE, t, p);
- else
- tl = tl->right = block(TPIPE, tl->right, p);
- }
- REJECT;
- }
- return (t);
-}
-
-static struct op *
-andor(void)
-{
- struct op *t, *p;
- int c;
-
- t = pipeline(0);
- if (t != NULL) {
- while ((c = token(0)) == LOGAND || c == LOGOR) {
- if ((p = pipeline(CONTIN)) == NULL)
- syntaxerr(NULL);
- t = block(c == LOGAND? TAND: TOR, t, p);
- }
- REJECT;
- }
- return (t);
-}
-
-static struct op *
-c_list(bool multi)
-{
- struct op *t = NULL, *p, *tl = NULL;
- int c;
- bool have_sep;
-
- while (/* CONSTCOND */ 1) {
- p = andor();
- /*
- * Token has always been read/rejected at this point, so
- * we don't worry about what flags to pass token()
- */
- c = token(0);
- have_sep = true;
- if (c == '\n' && (multi || inalias(source))) {
- if (!p)
- /* ignore blank lines */
- continue;
- } else if (!p)
- break;
- else if (c == '&' || c == COPROC)
- p = block(c == '&' ? TASYNC : TCOPROC, p, NULL);
- else if (c != ';')
- have_sep = false;
- if (!t)
- t = p;
- else if (!tl)
- t = tl = block(TLIST, t, p);
- else
- tl = tl->right = block(TLIST, tl->right, p);
- if (!have_sep)
- break;
- }
- REJECT;
- return (t);
-}
-
-static struct ioword *
-synio(int cf)
-{
- struct ioword *iop;
- static struct ioword *nextiop;
- bool ishere;
-
- if (nextiop != NULL) {
- iop = nextiop;
- nextiop = NULL;
- return (iop);
- }
-
- if (tpeek(cf) != REDIR)
- return (NULL);
- ACCEPT;
- iop = yylval.iop;
- if (iop->flag & IONDELIM)
- goto gotnulldelim;
- ishere = (iop->flag & IOTYPE) == IOHERE;
- musthave(LWORD, ishere ? HEREDELIM : 0);
- if (ishere) {
- iop->delim = yylval.cp;
- if (*ident != 0)
- /* unquoted */
- gotnulldelim:
- iop->flag |= IOEVAL;
- if (herep > &heres[HERES - 1])
- yyerror("too many %ss\n", "<<");
- *herep++ = iop;
- } else
- iop->name = yylval.cp;
-
- if (iop->flag & IOBASH) {
- char *cp;
-
- nextiop = alloc(sizeof(*iop), ATEMP);
- nextiop->name = cp = alloc(5, ATEMP);
-
- if (iop->unit > 9) {
- *cp++ = CHAR;
- *cp++ = '0' + (iop->unit / 10);
- }
- *cp++ = CHAR;
- *cp++ = '0' + (iop->unit % 10);
- *cp = EOS;
-
- iop->flag &= ~IOBASH;
- nextiop->unit = 2;
- nextiop->flag = IODUP;
- nextiop->delim = NULL;
- nextiop->heredoc = NULL;
- }
- return (iop);
-}
-
-static struct op *
-nested(int type, int smark, int emark)
-{
- struct op *t;
- struct nesting_state old_nesting;
-
- nesting_push(&old_nesting, smark);
- t = c_list(true);
- musthave(emark, KEYWORD|sALIAS);
- nesting_pop(&old_nesting);
- return (block(type, t, NULL));
-}
-
-static const char let_cmd[] = {
- CHAR, 'l', CHAR, 'e', CHAR, 't', CHAR, ']', EOS
-};
-static const char setA_cmd0[] = {
- CHAR, 's', CHAR, 'e', CHAR, 't', EOS
-};
-static const char setA_cmd1[] = {
- CHAR, '-', CHAR, 'A', EOS
-};
-static const char setA_cmd2[] = {
- CHAR, '-', CHAR, '-', EOS
-};
-
-static struct op *
-get_command(int cf)
-{
- struct op *t;
- int c, iopn = 0, syniocf, lno;
- struct ioword *iop, **iops;
- XPtrV args, vars;
- char *tcp;
- struct nesting_state old_nesting;
-
- /* NUFILE is small enough to leave this addition unchecked */
- iops = alloc2((NUFILE + 1), sizeof(struct ioword *), ATEMP);
- XPinit(args, 16);
- XPinit(vars, 16);
-
- syniocf = KEYWORD|sALIAS;
- switch (c = token(cf|KEYWORD|sALIAS|VARASN)) {
- default:
- REJECT;
- afree(iops, ATEMP);
- XPfree(args);
- XPfree(vars);
- /* empty line */
- return (NULL);
-
- case LWORD:
- case REDIR:
- REJECT;
- syniocf &= ~(KEYWORD|sALIAS);
- t = newtp(TCOM);
- t->lineno = source->line;
- while (/* CONSTCOND */ 1) {
- cf = (t->u.evalflags ? ARRAYVAR : 0) |
- (XPsize(args) == 0 ? sALIAS|VARASN : CMDWORD);
- switch (tpeek(cf)) {
- case REDIR:
- while ((iop = synio(cf)) != NULL) {
- if (iopn >= NUFILE)
- yyerror("too many %ss\n",
- "redirection");
- iops[iopn++] = iop;
- }
- break;
-
- case LWORD:
- ACCEPT;
- /*
- * the iopn == 0 and XPsize(vars) == 0 are
- * dubious but AT&T ksh acts this way
- */
- if (iopn == 0 && XPsize(vars) == 0 &&
- XPsize(args) == 0 &&
- assign_command(ident))
- t->u.evalflags = DOVACHECK;
- if ((XPsize(args) == 0 || Flag(FKEYWORD)) &&
- is_wdvarassign(yylval.cp))
- XPput(vars, yylval.cp);
- else
- XPput(args, yylval.cp);
- break;
-
- case '(' /*)*/:
- if (XPsize(args) == 0 && XPsize(vars) == 1 &&
- is_wdvarassign(yylval.cp)) {
- /* wdarrassign: foo=(bar) */
- ACCEPT;
-
- /* manipulate the vars string */
- tcp = XPptrv(vars)[(vars.len = 0)];
- /* 'varname=' -> 'varname' */
- tcp[wdscan(tcp, EOS) - tcp - 3] = EOS;
-
- /* construct new args strings */
- XPput(args, wdcopy(setA_cmd0, ATEMP));
- XPput(args, wdcopy(setA_cmd1, ATEMP));
- XPput(args, tcp);
- XPput(args, wdcopy(setA_cmd2, ATEMP));
-
- /* slurp in words till closing paren */
- while (token(CONTIN) == LWORD)
- XPput(args, yylval.cp);
- if (symbol != /*(*/ ')')
- syntaxerr(NULL);
- } else {
- /*
- * Check for "> foo (echo hi)"
- * which AT&T ksh allows (not
- * POSIX, but not disallowed)
- */
- afree(t, ATEMP);
- if (XPsize(args) == 0 &&
- XPsize(vars) == 0) {
- ACCEPT;
- goto Subshell;
- }
-
- /* must be a function */
- if (iopn != 0 || XPsize(args) != 1 ||
- XPsize(vars) != 0)
- syntaxerr(NULL);
- ACCEPT;
- musthave(/*(*/')', 0);
- t = function_body(XPptrv(args)[0], false);
- }
- goto Leave;
-
- default:
- goto Leave;
- }
- }
- Leave:
- break;
-
- case '(': /*)*/ {
- int subshell_nesting_type_saved;
- Subshell:
- subshell_nesting_type_saved = subshell_nesting_type;
- subshell_nesting_type = ')';
- t = nested(TPAREN, '(', ')');
- subshell_nesting_type = subshell_nesting_type_saved;
- break;
- }
-
- case '{': /*}*/
- t = nested(TBRACE, '{', '}');
- break;
-
- case MDPAREN:
- /* leave KEYWORD in syniocf (allow if (( 1 )) then ...) */
- lno = source->line;
- ACCEPT;
- switch (token(LETEXPR)) {
- case LWORD:
- break;
- case '(': /*)*/
- goto Subshell;
- default:
- syntaxerr(NULL);
- }
- t = newtp(TCOM);
- t->lineno = lno;
- XPput(args, wdcopy(let_cmd, ATEMP));
- XPput(args, yylval.cp);
- break;
-
- case DBRACKET: /* [[ .. ]] */
- /* leave KEYWORD in syniocf (allow if [[ -n 1 ]] then ...) */
- t = newtp(TDBRACKET);
- ACCEPT;
- {
- Test_env te;
-
- te.flags = TEF_DBRACKET;
- te.pos.av = &args;
- te.isa = dbtestp_isa;
- te.getopnd = dbtestp_getopnd;
- te.eval = dbtestp_eval;
- te.error = dbtestp_error;
-
- test_parse(&te);
- }
- break;
-
- case FOR:
- case SELECT:
- t = newtp((c == FOR) ? TFOR : TSELECT);
- musthave(LWORD, ARRAYVAR);
- if (!is_wdvarname(yylval.cp, true))
- yyerror("%s: %s\n", c == FOR ? "for" : Tselect,
- "bad identifier");
- strdupx(t->str, ident, ATEMP);
- nesting_push(&old_nesting, c);
- t->vars = wordlist();
- t->left = dogroup();
- nesting_pop(&old_nesting);
- break;
-
- case WHILE:
- case UNTIL:
- nesting_push(&old_nesting, c);
- t = newtp((c == WHILE) ? TWHILE : TUNTIL);
- t->left = c_list(true);
- t->right = dogroup();
- nesting_pop(&old_nesting);
- break;
-
- case CASE:
- t = newtp(TCASE);
- musthave(LWORD, 0);
- t->str = yylval.cp;
- nesting_push(&old_nesting, c);
- t->left = caselist();
- nesting_pop(&old_nesting);
- break;
-
- case IF:
- nesting_push(&old_nesting, c);
- t = newtp(TIF);
- t->left = c_list(true);
- t->right = thenpart();
- musthave(FI, KEYWORD|sALIAS);
- nesting_pop(&old_nesting);
- break;
-
- case BANG:
- syniocf &= ~(KEYWORD|sALIAS);
- t = pipeline(0);
- if (t == NULL)
- syntaxerr(NULL);
- t = block(TBANG, NULL, t);
- break;
-
- case TIME:
- syniocf &= ~(KEYWORD|sALIAS);
- t = pipeline(0);
- if (t && t->type == TCOM) {
- t->str = alloc(2, ATEMP);
- /* TF_* flags */
- t->str[0] = '\0';
- t->str[1] = '\0';
- }
- t = block(TTIME, t, NULL);
- break;
-
- case FUNCTION:
- musthave(LWORD, 0);
- t = function_body(yylval.cp, true);
- break;
- }
-
- while ((iop = synio(syniocf)) != NULL) {
- if (iopn >= NUFILE)
- yyerror("too many %ss\n", "redirection");
- iops[iopn++] = iop;
- }
-
- if (iopn == 0) {
- afree(iops, ATEMP);
- t->ioact = NULL;
- } else {
- iops[iopn++] = NULL;
- iops = aresize2(iops, iopn, sizeof(struct ioword *), ATEMP);
- t->ioact = iops;
- }
-
- if (t->type == TCOM || t->type == TDBRACKET) {
- XPput(args, NULL);
- t->args = (const char **)XPclose(args);
- XPput(vars, NULL);
- t->vars = (char **)XPclose(vars);
- } else {
- XPfree(args);
- XPfree(vars);
- }
-
- return (t);
-}
-
-static struct op *
-dogroup(void)
-{
- int c;
- struct op *list;
-
- c = token(CONTIN|KEYWORD|sALIAS);
- /*
- * A {...} can be used instead of do...done for for/select loops
- * but not for while/until loops - we don't need to check if it
- * is a while loop because it would have been parsed as part of
- * the conditional command list...
- */
- if (c == DO)
- c = DONE;
- else if (c == '{')
- c = '}';
- else
- syntaxerr(NULL);
- list = c_list(true);
- musthave(c, KEYWORD|sALIAS);
- return (list);
-}
-
-static struct op *
-thenpart(void)
-{
- struct op *t;
-
- musthave(THEN, KEYWORD|sALIAS);
- t = newtp(0);
- t->left = c_list(true);
- if (t->left == NULL)
- syntaxerr(NULL);
- t->right = elsepart();
- return (t);
-}
-
-static struct op *
-elsepart(void)
-{
- struct op *t;
-
- switch (token(KEYWORD|sALIAS|VARASN)) {
- case ELSE:
- if ((t = c_list(true)) == NULL)
- syntaxerr(NULL);
- return (t);
-
- case ELIF:
- t = newtp(TELIF);
- t->left = c_list(true);
- t->right = thenpart();
- return (t);
-
- default:
- REJECT;
- }
- return (NULL);
-}
-
-static struct op *
-caselist(void)
-{
- struct op *t, *tl;
- int c;
-
- c = token(CONTIN|KEYWORD|sALIAS);
- /* A {...} can be used instead of in...esac for case statements */
- if (c == IN)
- c = ESAC;
- else if (c == '{')
- c = '}';
- else
- syntaxerr(NULL);
- t = tl = NULL;
- /* no ALIAS here */
- while ((tpeek(CONTIN|KEYWORD|ESACONLY)) != c) {
- struct op *tc = casepart(c);
- if (tl == NULL)
- t = tl = tc, tl->right = NULL;
- else
- tl->right = tc, tl = tc;
- }
- musthave(c, KEYWORD|sALIAS);
- return (t);
-}
-
-static struct op *
-casepart(int endtok)
-{
- struct op *t;
- XPtrV ptns;
-
- XPinit(ptns, 16);
- t = newtp(TPAT);
- /* no ALIAS here */
- if (token(CONTIN | KEYWORD) != '(')
- REJECT;
- do {
- switch (token(0)) {
- case LWORD:
- break;
- case '}':
- case ESAC:
- if (symbol != endtok) {
- strdupx(yylval.cp,
- symbol == '}' ? Tcbrace : Tesac, ATEMP);
- break;
- }
- /* FALLTHROUGH */
- default:
- syntaxerr(NULL);
- }
- XPput(ptns, yylval.cp);
- } while (token(0) == '|');
- REJECT;
- XPput(ptns, NULL);
- t->vars = (char **)XPclose(ptns);
- musthave(')', 0);
-
- t->left = c_list(true);
-
- /* initialise to default for ;; or omitted */
- t->u.charflag = ';';
- /* SUSv4 requires the ;; except in the last casepart */
- if ((tpeek(CONTIN|KEYWORD|sALIAS)) != endtok)
- switch (symbol) {
- default:
- syntaxerr(NULL);
- case BRKEV:
- t->u.charflag = '|';
- if (0)
- /* FALLTHROUGH */
- case BRKFT:
- t->u.charflag = '&';
- /* FALLTHROUGH */
- case BREAK:
- /* initialised above, but we need to eat the token */
- ACCEPT;
- }
- return (t);
-}
-
-static struct op *
-function_body(char *name,
- /* function foo { ... } vs foo() { .. } */
- bool ksh_func)
-{
- char *sname, *p;
- struct op *t;
-
- sname = wdstrip(name, 0);
- /*-
- * Check for valid characters in name. POSIX and AT&T ksh93 say
- * only allow [a-zA-Z_0-9] but this allows more as old pdkshs
- * have allowed more; the following were never allowed:
- * NUL TAB NL SP " $ & ' ( ) ; < = > \ ` |
- * C_QUOTE covers all but adds # * ? [ ]
- */
- for (p = sname; *p; p++)
- if (ctype(*p, C_QUOTE))
- yyerror("%s: %s\n", sname, "invalid function name");
-
- /*
- * Note that POSIX allows only compound statements after foo(),
- * sh and AT&T ksh allow any command, go with the later since it
- * shouldn't break anything. However, for function foo, AT&T ksh
- * only accepts an open-brace.
- */
- if (ksh_func) {
- if (tpeek(CONTIN|KEYWORD|sALIAS) == '(' /*)*/) {
- /* function foo () { //}*/
- ACCEPT;
- musthave(')', 0);
- /* degrade to POSIX function */
- ksh_func = false;
- }
- musthave('{' /*}*/, CONTIN|KEYWORD|sALIAS);
- REJECT;
- }
-
- t = newtp(TFUNCT);
- t->str = sname;
- t->u.ksh_func = tobool(ksh_func);
- t->lineno = source->line;
-
- if ((t->left = get_command(CONTIN)) == NULL) {
- char *tv;
- /*
- * Probably something like foo() followed by EOF or ';'.
- * This is accepted by sh and ksh88.
- * To make "typeset -f foo" work reliably (so its output can
- * be used as input), we pretend there is a colon here.
- */
- t->left = newtp(TCOM);
- /* (2 * sizeof(char *)) is small enough */
- t->left->args = alloc(2 * sizeof(char *), ATEMP);
- t->left->args[0] = tv = alloc(3, ATEMP);
- tv[0] = CHAR;
- tv[1] = ':';
- tv[2] = EOS;
- t->left->args[1] = NULL;
- t->left->vars = alloc(sizeof(char *), ATEMP);
- t->left->vars[0] = NULL;
- t->left->lineno = 1;
- }
-
- return (t);
-}
-
-static char **
-wordlist(void)
-{
- int c;
- XPtrV args;
-
- XPinit(args, 16);
- /* POSIX does not do alias expansion here... */
- if ((c = token(CONTIN|KEYWORD|sALIAS)) != IN) {
- if (c != ';')
- /* non-POSIX, but AT&T ksh accepts a ; here */
- REJECT;
- return (NULL);
- }
- while ((c = token(0)) == LWORD)
- XPput(args, yylval.cp);
- if (c != '\n' && c != ';')
- syntaxerr(NULL);
- XPput(args, NULL);
- return ((char **)XPclose(args));
-}
-
-/*
- * supporting functions
- */
-
-static struct op *
-block(int type, struct op *t1, struct op *t2)
-{
- struct op *t;
-
- t = newtp(type);
- t->left = t1;
- t->right = t2;
- return (t);
-}
-
-static const struct tokeninfo {
- const char *name;
- short val;
- short reserved;
-} tokentab[] = {
- /* Reserved words */
- { "if", IF, true },
- { "then", THEN, true },
- { "else", ELSE, true },
- { "elif", ELIF, true },
- { "fi", FI, true },
- { "case", CASE, true },
- { Tesac, ESAC, true },
- { "for", FOR, true },
- { Tselect, SELECT, true },
- { "while", WHILE, true },
- { "until", UNTIL, true },
- { "do", DO, true },
- { "done", DONE, true },
- { "in", IN, true },
- { Tfunction, FUNCTION, true },
- { "time", TIME, true },
- { "{", '{', true },
- { Tcbrace, '}', true },
- { "!", BANG, true },
- { "[[", DBRACKET, true },
- /* Lexical tokens (0[EOF], LWORD and REDIR handled specially) */
- { "&&", LOGAND, false },
- { "||", LOGOR, false },
- { ";;", BREAK, false },
- { ";|", BRKEV, false },
- { ";&", BRKFT, false },
- { "((", MDPAREN, false },
- { "|&", COPROC, false },
- /* and some special cases... */
- { "newline", '\n', false },
- { NULL, 0, false }
-};
-
-void
-initkeywords(void)
-{
- struct tokeninfo const *tt;
- struct tbl *p;
-
- ktinit(APERM, &keywords,
- /* currently 28 keywords: 75% of 64 = 2^6 */
- 6);
- for (tt = tokentab; tt->name; tt++) {
- if (tt->reserved) {
- p = ktenter(&keywords, tt->name, hash(tt->name));
- p->flag |= DEFINED|ISSET;
- p->type = CKEYWD;
- p->val.i = tt->val;
- }
- }
-}
-
-static void
-syntaxerr(const char *what)
-{
- /* 2<<- is the longest redirection, I think */
- char redir[6];
- const char *s;
- struct tokeninfo const *tt;
- int c;
-
- if (!what)
- what = "unexpected";
- REJECT;
- c = token(0);
- Again:
- switch (c) {
- case 0:
- if (nesting.start_token) {
- c = nesting.start_token;
- source->errline = nesting.start_line;
- what = "unmatched";
- goto Again;
- }
- /* don't quote the EOF */
- yyerror("%s: %s %s\n", Tsynerr, "unexpected", "EOF");
- /* NOTREACHED */
-
- case LWORD:
- s = snptreef(NULL, 32, "%S", yylval.cp);
- break;
-
- case REDIR:
- s = snptreef(redir, sizeof(redir), "%R", yylval.iop);
- break;
-
- default:
- for (tt = tokentab; tt->name; tt++)
- if (tt->val == c)
- break;
- if (tt->name)
- s = tt->name;
- else {
- if (c > 0 && c < 256) {
- redir[0] = c;
- redir[1] = '\0';
- } else
- shf_snprintf(redir, sizeof(redir),
- "?%d", c);
- s = redir;
- }
- }
- yyerror("%s: '%s' %s\n", Tsynerr, s, what);
-}
-
-static void
-nesting_push(struct nesting_state *save, int tok)
-{
- *save = nesting;
- nesting.start_token = tok;
- nesting.start_line = source->line;
-}
-
-static void
-nesting_pop(struct nesting_state *saved)
-{
- nesting = *saved;
-}
-
-static struct op *
-newtp(int type)
-{
- struct op *t;
-
- t = alloc(sizeof(struct op), ATEMP);
- t->type = type;
- t->u.evalflags = 0;
- t->args = NULL;
- t->vars = NULL;
- t->ioact = NULL;
- t->left = t->right = NULL;
- t->str = NULL;
- return (t);
-}
-
-struct op *
-compile(Source *s, bool skiputf8bom)
-{
- nesting.start_token = 0;
- nesting.start_line = 0;
- herep = heres;
- source = s;
- if (skiputf8bom)
- yyskiputf8bom();
- yyparse();
- return (outtree);
-}
-
-/*-
- * This kludge exists to take care of sh/AT&T ksh oddity in which
- * the arguments of alias/export/readonly/typeset have no field
- * splitting, file globbing, or (normal) tilde expansion done.
- * AT&T ksh seems to do something similar to this since
- * $ touch a=a; typeset a=[ab]; echo "$a"
- * a=[ab]
- * $ x=typeset; $x a=[ab]; echo "$a"
- * a=a
- * $
- */
-static int
-assign_command(const char *s)
-{
- if (!*s)
- return (0);
- return ((strcmp(s, Talias) == 0) ||
- (strcmp(s, Texport) == 0) ||
- (strcmp(s, Treadonly) == 0) ||
- (strcmp(s, Ttypeset) == 0));
-}
-
-/* Check if we are in the middle of reading an alias */
-static int
-inalias(struct source *s)
-{
- for (; s && s->type == SALIAS; s = s->next)
- if (!(s->flags & SF_ALIASEND))
- return (1);
- return (0);
-}
-
-
-/*
- * Order important - indexed by Test_meta values
- * Note that ||, &&, ( and ) can't appear in as unquoted strings
- * in normal shell input, so these can be interpreted unambiguously
- * in the evaluation pass.
- */
-static const char dbtest_or[] = { CHAR, '|', CHAR, '|', EOS };
-static const char dbtest_and[] = { CHAR, '&', CHAR, '&', EOS };
-static const char dbtest_not[] = { CHAR, '!', EOS };
-static const char dbtest_oparen[] = { CHAR, '(', EOS };
-static const char dbtest_cparen[] = { CHAR, ')', EOS };
-const char * const dbtest_tokens[] = {
- dbtest_or, dbtest_and, dbtest_not,
- dbtest_oparen, dbtest_cparen
-};
-static const char db_close[] = { CHAR, ']', CHAR, ']', EOS };
-static const char db_lthan[] = { CHAR, '<', EOS };
-static const char db_gthan[] = { CHAR, '>', EOS };
-
-/*
- * Test if the current token is a whatever. Accepts the current token if
- * it is. Returns 0 if it is not, non-zero if it is (in the case of
- * TM_UNOP and TM_BINOP, the returned value is a Test_op).
- */
-static Test_op
-dbtestp_isa(Test_env *te, Test_meta meta)
-{
- int c = tpeek(ARRAYVAR | (meta == TM_BINOP ? 0 : CONTIN));
- int uqword;
- char *save = NULL;
- Test_op ret = TO_NONOP;
-
- /* unquoted word? */
- uqword = c == LWORD && *ident;
-
- if (meta == TM_OR)
- ret = c == LOGOR ? TO_NONNULL : TO_NONOP;
- else if (meta == TM_AND)
- ret = c == LOGAND ? TO_NONNULL : TO_NONOP;
- else if (meta == TM_NOT)
- ret = (uqword && !strcmp(yylval.cp,
- dbtest_tokens[(int)TM_NOT])) ? TO_NONNULL : TO_NONOP;
- else if (meta == TM_OPAREN)
- ret = c == '(' /*)*/ ? TO_NONNULL : TO_NONOP;
- else if (meta == TM_CPAREN)
- ret = c == /*(*/ ')' ? TO_NONNULL : TO_NONOP;
- else if (meta == TM_UNOP || meta == TM_BINOP) {
- if (meta == TM_BINOP && c == REDIR &&
- (yylval.iop->flag == IOREAD || yylval.iop->flag == IOWRITE)) {
- ret = TO_NONNULL;
- save = wdcopy(yylval.iop->flag == IOREAD ?
- db_lthan : db_gthan, ATEMP);
- } else if (uqword && (ret = test_isop(meta, ident)))
- save = yylval.cp;
- } else
- /* meta == TM_END */
- ret = (uqword && !strcmp(yylval.cp,
- db_close)) ? TO_NONNULL : TO_NONOP;
- if (ret != TO_NONOP) {
- ACCEPT;
- if ((unsigned int)meta < NELEM(dbtest_tokens))
- save = wdcopy(dbtest_tokens[(int)meta], ATEMP);
- if (save)
- XPput(*te->pos.av, save);
- }
- return (ret);
-}
-
-static const char *
-dbtestp_getopnd(Test_env *te, Test_op op MKSH_A_UNUSED,
- bool do_eval MKSH_A_UNUSED)
-{
- int c = tpeek(ARRAYVAR);
-
- if (c != LWORD)
- return (NULL);
-
- ACCEPT;
- XPput(*te->pos.av, yylval.cp);
-
- return (null);
-}
-
-static int
-dbtestp_eval(Test_env *te MKSH_A_UNUSED, Test_op op MKSH_A_UNUSED,
- const char *opnd1 MKSH_A_UNUSED, const char *opnd2 MKSH_A_UNUSED,
- bool do_eval MKSH_A_UNUSED)
-{
- return (1);
-}
-
-static void
-dbtestp_error(Test_env *te, int offset, const char *msg)
-{
- te->flags |= TEF_ERROR;
-
- if (offset < 0) {
- REJECT;
- /* Kludgy to say the least... */
- symbol = LWORD;
- yylval.cp = *(XPptrv(*te->pos.av) + XPsize(*te->pos.av) +
- offset);
- }
- syntaxerr(msg);
-}
-
-#if HAVE_SELECT
-
-#ifndef EOVERFLOW
-#ifdef ERANGE
-#define EOVERFLOW ERANGE
-#else
-#define EOVERFLOW EINVAL
-#endif
-#endif
-
-bool
-parse_usec(const char *s, struct timeval *tv)
-{
- struct timeval tt;
- int i;
-
- tv->tv_sec = 0;
- /* parse integral part */
- while (ksh_isdigit(*s)) {
- tt.tv_sec = tv->tv_sec * 10 + (*s++ - '0');
- if (tt.tv_sec / 10 != tv->tv_sec) {
- errno = EOVERFLOW;
- return (true);
- }
- tv->tv_sec = tt.tv_sec;
- }
-
- tv->tv_usec = 0;
- if (!*s)
- /* no decimal fraction */
- return (false);
- else if (*s++ != '.') {
- /* junk after integral part */
- errno = EINVAL;
- return (true);
- }
-
- /* parse decimal fraction */
- i = 100000;
- while (ksh_isdigit(*s)) {
- tv->tv_usec += i * (*s++ - '0');
- if (i == 1)
- break;
- i /= 10;
- }
- /* check for junk after fractional part */
- while (ksh_isdigit(*s))
- ++s;
- if (*s) {
- errno = EINVAL;
- return (true);
- }
-
- /* end of input string reached, no errors */
- return (false);
-}
-#endif
-
-/*
- * Helper function called from within lex.c:yylex() to parse
- * a COMSUB recursively using the main shell parser and lexer
- */
-char *
-yyrecursive(int subtype MKSH_A_UNUSED)
-{
- struct op *t;
- char *cp;
- struct yyrecursive_state *ys;
- int stok, etok;
-
- if (subtype != COMSUB) {
- stok = '{';
- etok = '}';
- } else {
- stok = '(';
- etok = ')';
- }
-
- ys = alloc(sizeof(struct yyrecursive_state), ATEMP);
-
- /* tell the lexer to accept a closing parenthesis as EOD */
- ys->old_nesting_type = subshell_nesting_type;
- subshell_nesting_type = etok;
-
- /* push reject state, parse recursively, pop reject state */
- ys->old_reject = reject;
- ys->old_symbol = symbol;
- ACCEPT;
- ys->old_herep = herep;
- ys->old_salias = sALIAS;
- sALIAS = 0;
- ys->next = e->yyrecursive_statep;
- e->yyrecursive_statep = ys;
- /* we use TPAREN as a helper container here */
- t = nested(TPAREN, stok, etok);
- yyrecursive_pop(false);
-
- /* t->left because nested(TPAREN, ...) hides our goodies there */
- cp = snptreef(NULL, 0, "%T", t->left);
- tfree(t, ATEMP);
-
- return (cp);
-}
-
-void
-yyrecursive_pop(bool popall)
-{
- struct yyrecursive_state *ys;
-
- popnext:
- if (!(ys = e->yyrecursive_statep))
- return;
- e->yyrecursive_statep = ys->next;
-
- sALIAS = ys->old_salias;
- herep = ys->old_herep;
- reject = ys->old_reject;
- symbol = ys->old_symbol;
-
- subshell_nesting_type = ys->old_nesting_type;
-
- afree(ys, ATEMP);
- if (popall)
- goto popnext;
-}
Copied: vendor/MirOS/mksh/R50/syn.c (from rev 6707, vendor/MirOS/mksh/dist/syn.c)
===================================================================
--- vendor/MirOS/mksh/R50/syn.c (rev 0)
+++ vendor/MirOS/mksh/R50/syn.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1181 @@
+/* $OpenBSD: syn.c,v 1.29 2013/06/03 18:40:05 jca Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009,
+ * 2011, 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+
+__RCSID("$MirOS: src/bin/mksh/syn.c,v 1.94 2014/01/05 21:57:29 tg Exp $");
+
+struct nesting_state {
+ int start_token; /* token than began nesting (eg, FOR) */
+ int start_line; /* line nesting began on */
+};
+
+struct yyrecursive_state {
+ struct yyrecursive_state *next;
+ struct ioword **old_herep;
+ int old_symbol;
+ int old_salias;
+ int old_nesting_type;
+ bool old_reject;
+};
+
+static void yyparse(void);
+static struct op *pipeline(int);
+static struct op *andor(void);
+static struct op *c_list(bool);
+static struct ioword *synio(int);
+static struct op *nested(int, int, int);
+static struct op *get_command(int);
+static struct op *dogroup(void);
+static struct op *thenpart(void);
+static struct op *elsepart(void);
+static struct op *caselist(void);
+static struct op *casepart(int);
+static struct op *function_body(char *, bool);
+static char **wordlist(void);
+static struct op *block(int, struct op *, struct op *);
+static struct op *newtp(int);
+static void syntaxerr(const char *) MKSH_A_NORETURN;
+static void nesting_push(struct nesting_state *, int);
+static void nesting_pop(struct nesting_state *);
+static int assign_command(const char *);
+static int inalias(struct source *) MKSH_A_PURE;
+static Test_op dbtestp_isa(Test_env *, Test_meta);
+static const char *dbtestp_getopnd(Test_env *, Test_op, bool);
+static int dbtestp_eval(Test_env *, Test_op, const char *,
+ const char *, bool);
+static void dbtestp_error(Test_env *, int, const char *) MKSH_A_NORETURN;
+
+static struct op *outtree; /* yyparse output */
+static struct nesting_state nesting; /* \n changed to ; */
+
+static bool reject; /* token(cf) gets symbol again */
+static int symbol; /* yylex value */
+static int sALIAS = ALIAS; /* 0 in yyrecursive */
+
+#define REJECT (reject = true)
+#define ACCEPT (reject = false)
+#define token(cf) ((reject) ? (ACCEPT, symbol) : (symbol = yylex(cf)))
+#define tpeek(cf) ((reject) ? (symbol) : (REJECT, symbol = yylex(cf)))
+#define musthave(c,cf) do { if (token(cf) != (c)) syntaxerr(NULL); } while (/* CONSTCOND */ 0)
+
+static const char Tcbrace[] = "}";
+static const char Tesac[] = "esac";
+
+static void
+yyparse(void)
+{
+ int c;
+
+ ACCEPT;
+
+ outtree = c_list(source->type == SSTRING);
+ c = tpeek(0);
+ if (c == 0 && !outtree)
+ outtree = newtp(TEOF);
+ else if (c != '\n' && c != 0)
+ syntaxerr(NULL);
+}
+
+static struct op *
+pipeline(int cf)
+{
+ struct op *t, *p, *tl = NULL;
+
+ t = get_command(cf);
+ if (t != NULL) {
+ while (token(0) == '|') {
+ if ((p = get_command(CONTIN)) == NULL)
+ syntaxerr(NULL);
+ if (tl == NULL)
+ t = tl = block(TPIPE, t, p);
+ else
+ tl = tl->right = block(TPIPE, tl->right, p);
+ }
+ REJECT;
+ }
+ return (t);
+}
+
+static struct op *
+andor(void)
+{
+ struct op *t, *p;
+ int c;
+
+ t = pipeline(0);
+ if (t != NULL) {
+ while ((c = token(0)) == LOGAND || c == LOGOR) {
+ if ((p = pipeline(CONTIN)) == NULL)
+ syntaxerr(NULL);
+ t = block(c == LOGAND? TAND: TOR, t, p);
+ }
+ REJECT;
+ }
+ return (t);
+}
+
+static struct op *
+c_list(bool multi)
+{
+ struct op *t = NULL, *p, *tl = NULL;
+ int c;
+ bool have_sep;
+
+ while (/* CONSTCOND */ 1) {
+ p = andor();
+ /*
+ * Token has always been read/rejected at this point, so
+ * we don't worry about what flags to pass token()
+ */
+ c = token(0);
+ have_sep = true;
+ if (c == '\n' && (multi || inalias(source))) {
+ if (!p)
+ /* ignore blank lines */
+ continue;
+ } else if (!p)
+ break;
+ else if (c == '&' || c == COPROC)
+ p = block(c == '&' ? TASYNC : TCOPROC, p, NULL);
+ else if (c != ';')
+ have_sep = false;
+ if (!t)
+ t = p;
+ else if (!tl)
+ t = tl = block(TLIST, t, p);
+ else
+ tl = tl->right = block(TLIST, tl->right, p);
+ if (!have_sep)
+ break;
+ }
+ REJECT;
+ return (t);
+}
+
+static struct ioword *
+synio(int cf)
+{
+ struct ioword *iop;
+ static struct ioword *nextiop;
+ bool ishere;
+
+ if (nextiop != NULL) {
+ iop = nextiop;
+ nextiop = NULL;
+ return (iop);
+ }
+
+ if (tpeek(cf) != REDIR)
+ return (NULL);
+ ACCEPT;
+ iop = yylval.iop;
+ if (iop->flag & IONDELIM)
+ goto gotnulldelim;
+ ishere = (iop->flag & IOTYPE) == IOHERE;
+ musthave(LWORD, ishere ? HEREDELIM : 0);
+ if (ishere) {
+ iop->delim = yylval.cp;
+ if (*ident != 0)
+ /* unquoted */
+ gotnulldelim:
+ iop->flag |= IOEVAL;
+ if (herep > &heres[HERES - 1])
+ yyerror("too many %ss\n", "<<");
+ *herep++ = iop;
+ } else
+ iop->name = yylval.cp;
+
+ if (iop->flag & IOBASH) {
+ char *cp;
+
+ nextiop = alloc(sizeof(*iop), ATEMP);
+ nextiop->name = cp = alloc(5, ATEMP);
+
+ if (iop->unit > 9) {
+ *cp++ = CHAR;
+ *cp++ = '0' + (iop->unit / 10);
+ }
+ *cp++ = CHAR;
+ *cp++ = '0' + (iop->unit % 10);
+ *cp = EOS;
+
+ iop->flag &= ~IOBASH;
+ nextiop->unit = 2;
+ nextiop->flag = IODUP;
+ nextiop->delim = NULL;
+ nextiop->heredoc = NULL;
+ }
+ return (iop);
+}
+
+static struct op *
+nested(int type, int smark, int emark)
+{
+ struct op *t;
+ struct nesting_state old_nesting;
+
+ nesting_push(&old_nesting, smark);
+ t = c_list(true);
+ musthave(emark, KEYWORD|sALIAS);
+ nesting_pop(&old_nesting);
+ return (block(type, t, NULL));
+}
+
+static const char let_cmd[] = {
+ CHAR, 'l', CHAR, 'e', CHAR, 't', CHAR, ']', EOS
+};
+static const char setA_cmd0[] = {
+ CHAR, 's', CHAR, 'e', CHAR, 't', EOS
+};
+static const char setA_cmd1[] = {
+ CHAR, '-', CHAR, 'A', EOS
+};
+static const char setA_cmd2[] = {
+ CHAR, '-', CHAR, '-', EOS
+};
+
+static struct op *
+get_command(int cf)
+{
+ struct op *t;
+ int c, iopn = 0, syniocf, lno;
+ struct ioword *iop, **iops;
+ XPtrV args, vars;
+ char *tcp;
+ struct nesting_state old_nesting;
+
+ /* NUFILE is small enough to leave this addition unchecked */
+ iops = alloc2((NUFILE + 1), sizeof(struct ioword *), ATEMP);
+ XPinit(args, 16);
+ XPinit(vars, 16);
+
+ syniocf = KEYWORD|sALIAS;
+ switch (c = token(cf|KEYWORD|sALIAS|VARASN)) {
+ default:
+ REJECT;
+ afree(iops, ATEMP);
+ XPfree(args);
+ XPfree(vars);
+ /* empty line */
+ return (NULL);
+
+ case LWORD:
+ case REDIR:
+ REJECT;
+ syniocf &= ~(KEYWORD|sALIAS);
+ t = newtp(TCOM);
+ t->lineno = source->line;
+ while (/* CONSTCOND */ 1) {
+ cf = (t->u.evalflags ? ARRAYVAR : 0) |
+ (XPsize(args) == 0 ? sALIAS|VARASN : CMDWORD);
+ switch (tpeek(cf)) {
+ case REDIR:
+ while ((iop = synio(cf)) != NULL) {
+ if (iopn >= NUFILE)
+ yyerror("too many %ss\n",
+ "redirection");
+ iops[iopn++] = iop;
+ }
+ break;
+
+ case LWORD:
+ ACCEPT;
+ /*
+ * the iopn == 0 and XPsize(vars) == 0 are
+ * dubious but AT&T ksh acts this way
+ */
+ if (iopn == 0 && XPsize(vars) == 0 &&
+ XPsize(args) == 0 &&
+ assign_command(ident))
+ t->u.evalflags = DOVACHECK;
+ if ((XPsize(args) == 0 || Flag(FKEYWORD)) &&
+ is_wdvarassign(yylval.cp))
+ XPput(vars, yylval.cp);
+ else
+ XPput(args, yylval.cp);
+ break;
+
+ case '(' /*)*/:
+ if (XPsize(args) == 0 && XPsize(vars) == 1 &&
+ is_wdvarassign(yylval.cp)) {
+ /* wdarrassign: foo=(bar) */
+ ACCEPT;
+
+ /* manipulate the vars string */
+ tcp = XPptrv(vars)[(vars.len = 0)];
+ /* 'varname=' -> 'varname' */
+ tcp[wdscan(tcp, EOS) - tcp - 3] = EOS;
+
+ /* construct new args strings */
+ XPput(args, wdcopy(setA_cmd0, ATEMP));
+ XPput(args, wdcopy(setA_cmd1, ATEMP));
+ XPput(args, tcp);
+ XPput(args, wdcopy(setA_cmd2, ATEMP));
+
+ /* slurp in words till closing paren */
+ while (token(CONTIN) == LWORD)
+ XPput(args, yylval.cp);
+ if (symbol != /*(*/ ')')
+ syntaxerr(NULL);
+ } else {
+ /*
+ * Check for "> foo (echo hi)"
+ * which AT&T ksh allows (not
+ * POSIX, but not disallowed)
+ */
+ afree(t, ATEMP);
+ if (XPsize(args) == 0 &&
+ XPsize(vars) == 0) {
+ ACCEPT;
+ goto Subshell;
+ }
+
+ /* must be a function */
+ if (iopn != 0 || XPsize(args) != 1 ||
+ XPsize(vars) != 0)
+ syntaxerr(NULL);
+ ACCEPT;
+ musthave(/*(*/')', 0);
+ t = function_body(XPptrv(args)[0], false);
+ }
+ goto Leave;
+
+ default:
+ goto Leave;
+ }
+ }
+ Leave:
+ break;
+
+ case '(': /*)*/ {
+ int subshell_nesting_type_saved;
+ Subshell:
+ subshell_nesting_type_saved = subshell_nesting_type;
+ subshell_nesting_type = ')';
+ t = nested(TPAREN, '(', ')');
+ subshell_nesting_type = subshell_nesting_type_saved;
+ break;
+ }
+
+ case '{': /*}*/
+ t = nested(TBRACE, '{', '}');
+ break;
+
+ case MDPAREN:
+ /* leave KEYWORD in syniocf (allow if (( 1 )) then ...) */
+ lno = source->line;
+ ACCEPT;
+ switch (token(LETEXPR)) {
+ case LWORD:
+ break;
+ case '(': /*)*/
+ goto Subshell;
+ default:
+ syntaxerr(NULL);
+ }
+ t = newtp(TCOM);
+ t->lineno = lno;
+ XPput(args, wdcopy(let_cmd, ATEMP));
+ XPput(args, yylval.cp);
+ break;
+
+ case DBRACKET: /* [[ .. ]] */
+ /* leave KEYWORD in syniocf (allow if [[ -n 1 ]] then ...) */
+ t = newtp(TDBRACKET);
+ ACCEPT;
+ {
+ Test_env te;
+
+ te.flags = TEF_DBRACKET;
+ te.pos.av = &args;
+ te.isa = dbtestp_isa;
+ te.getopnd = dbtestp_getopnd;
+ te.eval = dbtestp_eval;
+ te.error = dbtestp_error;
+
+ test_parse(&te);
+ }
+ break;
+
+ case FOR:
+ case SELECT:
+ t = newtp((c == FOR) ? TFOR : TSELECT);
+ musthave(LWORD, ARRAYVAR);
+ if (!is_wdvarname(yylval.cp, true))
+ yyerror("%s: %s\n", c == FOR ? "for" : Tselect,
+ "bad identifier");
+ strdupx(t->str, ident, ATEMP);
+ nesting_push(&old_nesting, c);
+ t->vars = wordlist();
+ t->left = dogroup();
+ nesting_pop(&old_nesting);
+ break;
+
+ case WHILE:
+ case UNTIL:
+ nesting_push(&old_nesting, c);
+ t = newtp((c == WHILE) ? TWHILE : TUNTIL);
+ t->left = c_list(true);
+ t->right = dogroup();
+ nesting_pop(&old_nesting);
+ break;
+
+ case CASE:
+ t = newtp(TCASE);
+ musthave(LWORD, 0);
+ t->str = yylval.cp;
+ nesting_push(&old_nesting, c);
+ t->left = caselist();
+ nesting_pop(&old_nesting);
+ break;
+
+ case IF:
+ nesting_push(&old_nesting, c);
+ t = newtp(TIF);
+ t->left = c_list(true);
+ t->right = thenpart();
+ musthave(FI, KEYWORD|sALIAS);
+ nesting_pop(&old_nesting);
+ break;
+
+ case BANG:
+ syniocf &= ~(KEYWORD|sALIAS);
+ t = pipeline(0);
+ if (t == NULL)
+ syntaxerr(NULL);
+ t = block(TBANG, NULL, t);
+ break;
+
+ case TIME:
+ syniocf &= ~(KEYWORD|sALIAS);
+ t = pipeline(0);
+ if (t && t->type == TCOM) {
+ t->str = alloc(2, ATEMP);
+ /* TF_* flags */
+ t->str[0] = '\0';
+ t->str[1] = '\0';
+ }
+ t = block(TTIME, t, NULL);
+ break;
+
+ case FUNCTION:
+ musthave(LWORD, 0);
+ t = function_body(yylval.cp, true);
+ break;
+ }
+
+ while ((iop = synio(syniocf)) != NULL) {
+ if (iopn >= NUFILE)
+ yyerror("too many %ss\n", "redirection");
+ iops[iopn++] = iop;
+ }
+
+ if (iopn == 0) {
+ afree(iops, ATEMP);
+ t->ioact = NULL;
+ } else {
+ iops[iopn++] = NULL;
+ iops = aresize2(iops, iopn, sizeof(struct ioword *), ATEMP);
+ t->ioact = iops;
+ }
+
+ if (t->type == TCOM || t->type == TDBRACKET) {
+ XPput(args, NULL);
+ t->args = (const char **)XPclose(args);
+ XPput(vars, NULL);
+ t->vars = (char **)XPclose(vars);
+ } else {
+ XPfree(args);
+ XPfree(vars);
+ }
+
+ return (t);
+}
+
+static struct op *
+dogroup(void)
+{
+ int c;
+ struct op *list;
+
+ c = token(CONTIN|KEYWORD|sALIAS);
+ /*
+ * A {...} can be used instead of do...done for for/select loops
+ * but not for while/until loops - we don't need to check if it
+ * is a while loop because it would have been parsed as part of
+ * the conditional command list...
+ */
+ if (c == DO)
+ c = DONE;
+ else if (c == '{')
+ c = '}';
+ else
+ syntaxerr(NULL);
+ list = c_list(true);
+ musthave(c, KEYWORD|sALIAS);
+ return (list);
+}
+
+static struct op *
+thenpart(void)
+{
+ struct op *t;
+
+ musthave(THEN, KEYWORD|sALIAS);
+ t = newtp(0);
+ t->left = c_list(true);
+ if (t->left == NULL)
+ syntaxerr(NULL);
+ t->right = elsepart();
+ return (t);
+}
+
+static struct op *
+elsepart(void)
+{
+ struct op *t;
+
+ switch (token(KEYWORD|sALIAS|VARASN)) {
+ case ELSE:
+ if ((t = c_list(true)) == NULL)
+ syntaxerr(NULL);
+ return (t);
+
+ case ELIF:
+ t = newtp(TELIF);
+ t->left = c_list(true);
+ t->right = thenpart();
+ return (t);
+
+ default:
+ REJECT;
+ }
+ return (NULL);
+}
+
+static struct op *
+caselist(void)
+{
+ struct op *t, *tl;
+ int c;
+
+ c = token(CONTIN|KEYWORD|sALIAS);
+ /* A {...} can be used instead of in...esac for case statements */
+ if (c == IN)
+ c = ESAC;
+ else if (c == '{')
+ c = '}';
+ else
+ syntaxerr(NULL);
+ t = tl = NULL;
+ /* no ALIAS here */
+ while ((tpeek(CONTIN|KEYWORD|ESACONLY)) != c) {
+ struct op *tc = casepart(c);
+ if (tl == NULL)
+ t = tl = tc, tl->right = NULL;
+ else
+ tl->right = tc, tl = tc;
+ }
+ musthave(c, KEYWORD|sALIAS);
+ return (t);
+}
+
+static struct op *
+casepart(int endtok)
+{
+ struct op *t;
+ XPtrV ptns;
+
+ XPinit(ptns, 16);
+ t = newtp(TPAT);
+ /* no ALIAS here */
+ if (token(CONTIN | KEYWORD) != '(')
+ REJECT;
+ do {
+ switch (token(0)) {
+ case LWORD:
+ break;
+ case '}':
+ case ESAC:
+ if (symbol != endtok) {
+ strdupx(yylval.cp,
+ symbol == '}' ? Tcbrace : Tesac, ATEMP);
+ break;
+ }
+ /* FALLTHROUGH */
+ default:
+ syntaxerr(NULL);
+ }
+ XPput(ptns, yylval.cp);
+ } while (token(0) == '|');
+ REJECT;
+ XPput(ptns, NULL);
+ t->vars = (char **)XPclose(ptns);
+ musthave(')', 0);
+
+ t->left = c_list(true);
+
+ /* initialise to default for ;; or omitted */
+ t->u.charflag = ';';
+ /* SUSv4 requires the ;; except in the last casepart */
+ if ((tpeek(CONTIN|KEYWORD|sALIAS)) != endtok)
+ switch (symbol) {
+ default:
+ syntaxerr(NULL);
+ case BRKEV:
+ t->u.charflag = '|';
+ if (0)
+ /* FALLTHROUGH */
+ case BRKFT:
+ t->u.charflag = '&';
+ /* FALLTHROUGH */
+ case BREAK:
+ /* initialised above, but we need to eat the token */
+ ACCEPT;
+ }
+ return (t);
+}
+
+static struct op *
+function_body(char *name,
+ /* function foo { ... } vs foo() { .. } */
+ bool ksh_func)
+{
+ char *sname, *p;
+ struct op *t;
+
+ sname = wdstrip(name, 0);
+ /*-
+ * Check for valid characters in name. POSIX and AT&T ksh93 say
+ * only allow [a-zA-Z_0-9] but this allows more as old pdkshs
+ * have allowed more; the following were never allowed:
+ * NUL TAB NL SP " $ & ' ( ) ; < = > \ ` |
+ * C_QUOTE covers all but adds # * ? [ ]
+ */
+ for (p = sname; *p; p++)
+ if (ctype(*p, C_QUOTE))
+ yyerror("%s: %s\n", sname, "invalid function name");
+
+ /*
+ * Note that POSIX allows only compound statements after foo(),
+ * sh and AT&T ksh allow any command, go with the later since it
+ * shouldn't break anything. However, for function foo, AT&T ksh
+ * only accepts an open-brace.
+ */
+ if (ksh_func) {
+ if (tpeek(CONTIN|KEYWORD|sALIAS) == '(' /*)*/) {
+ /* function foo () { //}*/
+ ACCEPT;
+ musthave(')', 0);
+ /* degrade to POSIX function */
+ ksh_func = false;
+ }
+ musthave('{' /*}*/, CONTIN|KEYWORD|sALIAS);
+ REJECT;
+ }
+
+ t = newtp(TFUNCT);
+ t->str = sname;
+ t->u.ksh_func = tobool(ksh_func);
+ t->lineno = source->line;
+
+ if ((t->left = get_command(CONTIN)) == NULL) {
+ char *tv;
+ /*
+ * Probably something like foo() followed by EOF or ';'.
+ * This is accepted by sh and ksh88.
+ * To make "typeset -f foo" work reliably (so its output can
+ * be used as input), we pretend there is a colon here.
+ */
+ t->left = newtp(TCOM);
+ /* (2 * sizeof(char *)) is small enough */
+ t->left->args = alloc(2 * sizeof(char *), ATEMP);
+ t->left->args[0] = tv = alloc(3, ATEMP);
+ tv[0] = CHAR;
+ tv[1] = ':';
+ tv[2] = EOS;
+ t->left->args[1] = NULL;
+ t->left->vars = alloc(sizeof(char *), ATEMP);
+ t->left->vars[0] = NULL;
+ t->left->lineno = 1;
+ }
+
+ return (t);
+}
+
+static char **
+wordlist(void)
+{
+ int c;
+ XPtrV args;
+
+ XPinit(args, 16);
+ /* POSIX does not do alias expansion here... */
+ if ((c = token(CONTIN|KEYWORD|sALIAS)) != IN) {
+ if (c != ';')
+ /* non-POSIX, but AT&T ksh accepts a ; here */
+ REJECT;
+ return (NULL);
+ }
+ while ((c = token(0)) == LWORD)
+ XPput(args, yylval.cp);
+ if (c != '\n' && c != ';')
+ syntaxerr(NULL);
+ XPput(args, NULL);
+ return ((char **)XPclose(args));
+}
+
+/*
+ * supporting functions
+ */
+
+static struct op *
+block(int type, struct op *t1, struct op *t2)
+{
+ struct op *t;
+
+ t = newtp(type);
+ t->left = t1;
+ t->right = t2;
+ return (t);
+}
+
+static const struct tokeninfo {
+ const char *name;
+ short val;
+ short reserved;
+} tokentab[] = {
+ /* Reserved words */
+ { "if", IF, true },
+ { "then", THEN, true },
+ { "else", ELSE, true },
+ { "elif", ELIF, true },
+ { "fi", FI, true },
+ { "case", CASE, true },
+ { Tesac, ESAC, true },
+ { "for", FOR, true },
+ { Tselect, SELECT, true },
+ { "while", WHILE, true },
+ { "until", UNTIL, true },
+ { "do", DO, true },
+ { "done", DONE, true },
+ { "in", IN, true },
+ { Tfunction, FUNCTION, true },
+ { "time", TIME, true },
+ { "{", '{', true },
+ { Tcbrace, '}', true },
+ { "!", BANG, true },
+ { "[[", DBRACKET, true },
+ /* Lexical tokens (0[EOF], LWORD and REDIR handled specially) */
+ { "&&", LOGAND, false },
+ { "||", LOGOR, false },
+ { ";;", BREAK, false },
+ { ";|", BRKEV, false },
+ { ";&", BRKFT, false },
+ { "((", MDPAREN, false },
+ { "|&", COPROC, false },
+ /* and some special cases... */
+ { "newline", '\n', false },
+ { NULL, 0, false }
+};
+
+void
+initkeywords(void)
+{
+ struct tokeninfo const *tt;
+ struct tbl *p;
+
+ ktinit(APERM, &keywords,
+ /* currently 28 keywords: 75% of 64 = 2^6 */
+ 6);
+ for (tt = tokentab; tt->name; tt++) {
+ if (tt->reserved) {
+ p = ktenter(&keywords, tt->name, hash(tt->name));
+ p->flag |= DEFINED|ISSET;
+ p->type = CKEYWD;
+ p->val.i = tt->val;
+ }
+ }
+}
+
+static void
+syntaxerr(const char *what)
+{
+ /* 2<<- is the longest redirection, I think */
+ char redir[6];
+ const char *s;
+ struct tokeninfo const *tt;
+ int c;
+
+ if (!what)
+ what = "unexpected";
+ REJECT;
+ c = token(0);
+ Again:
+ switch (c) {
+ case 0:
+ if (nesting.start_token) {
+ c = nesting.start_token;
+ source->errline = nesting.start_line;
+ what = "unmatched";
+ goto Again;
+ }
+ /* don't quote the EOF */
+ yyerror("%s: %s %s\n", Tsynerr, "unexpected", "EOF");
+ /* NOTREACHED */
+
+ case LWORD:
+ s = snptreef(NULL, 32, "%S", yylval.cp);
+ break;
+
+ case REDIR:
+ s = snptreef(redir, sizeof(redir), "%R", yylval.iop);
+ break;
+
+ default:
+ for (tt = tokentab; tt->name; tt++)
+ if (tt->val == c)
+ break;
+ if (tt->name)
+ s = tt->name;
+ else {
+ if (c > 0 && c < 256) {
+ redir[0] = c;
+ redir[1] = '\0';
+ } else
+ shf_snprintf(redir, sizeof(redir),
+ "?%d", c);
+ s = redir;
+ }
+ }
+ yyerror("%s: '%s' %s\n", Tsynerr, s, what);
+}
+
+static void
+nesting_push(struct nesting_state *save, int tok)
+{
+ *save = nesting;
+ nesting.start_token = tok;
+ nesting.start_line = source->line;
+}
+
+static void
+nesting_pop(struct nesting_state *saved)
+{
+ nesting = *saved;
+}
+
+static struct op *
+newtp(int type)
+{
+ struct op *t;
+
+ t = alloc(sizeof(struct op), ATEMP);
+ t->type = type;
+ t->u.evalflags = 0;
+ t->args = NULL;
+ t->vars = NULL;
+ t->ioact = NULL;
+ t->left = t->right = NULL;
+ t->str = NULL;
+ return (t);
+}
+
+struct op *
+compile(Source *s, bool skiputf8bom)
+{
+ nesting.start_token = 0;
+ nesting.start_line = 0;
+ herep = heres;
+ source = s;
+ if (skiputf8bom)
+ yyskiputf8bom();
+ yyparse();
+ return (outtree);
+}
+
+/*-
+ * This kludge exists to take care of sh/AT&T ksh oddity in which
+ * the arguments of alias/export/readonly/typeset have no field
+ * splitting, file globbing, or (normal) tilde expansion done.
+ * AT&T ksh seems to do something similar to this since
+ * $ touch a=a; typeset a=[ab]; echo "$a"
+ * a=[ab]
+ * $ x=typeset; $x a=[ab]; echo "$a"
+ * a=a
+ * $
+ */
+static int
+assign_command(const char *s)
+{
+ if (!*s)
+ return (0);
+ return ((strcmp(s, Talias) == 0) ||
+ (strcmp(s, Texport) == 0) ||
+ (strcmp(s, Treadonly) == 0) ||
+ (strcmp(s, Ttypeset) == 0));
+}
+
+/* Check if we are in the middle of reading an alias */
+static int
+inalias(struct source *s)
+{
+ for (; s && s->type == SALIAS; s = s->next)
+ if (!(s->flags & SF_ALIASEND))
+ return (1);
+ return (0);
+}
+
+
+/*
+ * Order important - indexed by Test_meta values
+ * Note that ||, &&, ( and ) can't appear in as unquoted strings
+ * in normal shell input, so these can be interpreted unambiguously
+ * in the evaluation pass.
+ */
+static const char dbtest_or[] = { CHAR, '|', CHAR, '|', EOS };
+static const char dbtest_and[] = { CHAR, '&', CHAR, '&', EOS };
+static const char dbtest_not[] = { CHAR, '!', EOS };
+static const char dbtest_oparen[] = { CHAR, '(', EOS };
+static const char dbtest_cparen[] = { CHAR, ')', EOS };
+const char * const dbtest_tokens[] = {
+ dbtest_or, dbtest_and, dbtest_not,
+ dbtest_oparen, dbtest_cparen
+};
+static const char db_close[] = { CHAR, ']', CHAR, ']', EOS };
+static const char db_lthan[] = { CHAR, '<', EOS };
+static const char db_gthan[] = { CHAR, '>', EOS };
+
+/*
+ * Test if the current token is a whatever. Accepts the current token if
+ * it is. Returns 0 if it is not, non-zero if it is (in the case of
+ * TM_UNOP and TM_BINOP, the returned value is a Test_op).
+ */
+static Test_op
+dbtestp_isa(Test_env *te, Test_meta meta)
+{
+ int c = tpeek(ARRAYVAR | (meta == TM_BINOP ? 0 : CONTIN));
+ bool uqword;
+ char *save = NULL;
+ Test_op ret = TO_NONOP;
+
+ /* unquoted word? */
+ uqword = c == LWORD && *ident;
+
+ if (meta == TM_OR)
+ ret = c == LOGOR ? TO_NONNULL : TO_NONOP;
+ else if (meta == TM_AND)
+ ret = c == LOGAND ? TO_NONNULL : TO_NONOP;
+ else if (meta == TM_NOT)
+ ret = (uqword && !strcmp(yylval.cp,
+ dbtest_tokens[(int)TM_NOT])) ? TO_NONNULL : TO_NONOP;
+ else if (meta == TM_OPAREN)
+ ret = c == '(' /*)*/ ? TO_NONNULL : TO_NONOP;
+ else if (meta == TM_CPAREN)
+ ret = c == /*(*/ ')' ? TO_NONNULL : TO_NONOP;
+ else if (meta == TM_UNOP || meta == TM_BINOP) {
+ if (meta == TM_BINOP && c == REDIR &&
+ (yylval.iop->flag == IOREAD || yylval.iop->flag == IOWRITE)) {
+ ret = TO_NONNULL;
+ save = wdcopy(yylval.iop->flag == IOREAD ?
+ db_lthan : db_gthan, ATEMP);
+ } else if (uqword && (ret = test_isop(meta, ident)))
+ save = yylval.cp;
+ } else
+ /* meta == TM_END */
+ ret = (uqword && !strcmp(yylval.cp,
+ db_close)) ? TO_NONNULL : TO_NONOP;
+ if (ret != TO_NONOP) {
+ ACCEPT;
+ if ((unsigned int)meta < NELEM(dbtest_tokens))
+ save = wdcopy(dbtest_tokens[(int)meta], ATEMP);
+ if (save)
+ XPput(*te->pos.av, save);
+ }
+ return (ret);
+}
+
+static const char *
+dbtestp_getopnd(Test_env *te, Test_op op MKSH_A_UNUSED,
+ bool do_eval MKSH_A_UNUSED)
+{
+ int c = tpeek(ARRAYVAR);
+
+ if (c != LWORD)
+ return (NULL);
+
+ ACCEPT;
+ XPput(*te->pos.av, yylval.cp);
+
+ return (null);
+}
+
+static int
+dbtestp_eval(Test_env *te MKSH_A_UNUSED, Test_op op MKSH_A_UNUSED,
+ const char *opnd1 MKSH_A_UNUSED, const char *opnd2 MKSH_A_UNUSED,
+ bool do_eval MKSH_A_UNUSED)
+{
+ return (1);
+}
+
+static void
+dbtestp_error(Test_env *te, int offset, const char *msg)
+{
+ te->flags |= TEF_ERROR;
+
+ if (offset < 0) {
+ REJECT;
+ /* Kludgy to say the least... */
+ symbol = LWORD;
+ yylval.cp = *(XPptrv(*te->pos.av) + XPsize(*te->pos.av) +
+ offset);
+ }
+ syntaxerr(msg);
+}
+
+#if HAVE_SELECT
+
+#ifndef EOVERFLOW
+#ifdef ERANGE
+#define EOVERFLOW ERANGE
+#else
+#define EOVERFLOW EINVAL
+#endif
+#endif
+
+bool
+parse_usec(const char *s, struct timeval *tv)
+{
+ struct timeval tt;
+ int i;
+
+ tv->tv_sec = 0;
+ /* parse integral part */
+ while (ksh_isdigit(*s)) {
+ tt.tv_sec = tv->tv_sec * 10 + (*s++ - '0');
+ if (tt.tv_sec / 10 != tv->tv_sec) {
+ errno = EOVERFLOW;
+ return (true);
+ }
+ tv->tv_sec = tt.tv_sec;
+ }
+
+ tv->tv_usec = 0;
+ if (!*s)
+ /* no decimal fraction */
+ return (false);
+ else if (*s++ != '.') {
+ /* junk after integral part */
+ errno = EINVAL;
+ return (true);
+ }
+
+ /* parse decimal fraction */
+ i = 100000;
+ while (ksh_isdigit(*s)) {
+ tv->tv_usec += i * (*s++ - '0');
+ if (i == 1)
+ break;
+ i /= 10;
+ }
+ /* check for junk after fractional part */
+ while (ksh_isdigit(*s))
+ ++s;
+ if (*s) {
+ errno = EINVAL;
+ return (true);
+ }
+
+ /* end of input string reached, no errors */
+ return (false);
+}
+#endif
+
+/*
+ * Helper function called from within lex.c:yylex() to parse
+ * a COMSUB recursively using the main shell parser and lexer
+ */
+char *
+yyrecursive(int subtype MKSH_A_UNUSED)
+{
+ struct op *t;
+ char *cp;
+ struct yyrecursive_state *ys;
+ int stok, etok;
+
+ if (subtype != COMSUB) {
+ stok = '{';
+ etok = '}';
+ } else {
+ stok = '(';
+ etok = ')';
+ }
+
+ ys = alloc(sizeof(struct yyrecursive_state), ATEMP);
+
+ /* tell the lexer to accept a closing parenthesis as EOD */
+ ys->old_nesting_type = subshell_nesting_type;
+ subshell_nesting_type = etok;
+
+ /* push reject state, parse recursively, pop reject state */
+ ys->old_reject = reject;
+ ys->old_symbol = symbol;
+ ACCEPT;
+ ys->old_herep = herep;
+ ys->old_salias = sALIAS;
+ sALIAS = 0;
+ ys->next = e->yyrecursive_statep;
+ e->yyrecursive_statep = ys;
+ /* we use TPAREN as a helper container here */
+ t = nested(TPAREN, stok, etok);
+ yyrecursive_pop(false);
+
+ /* t->left because nested(TPAREN, ...) hides our goodies there */
+ cp = snptreef(NULL, 0, "%T", t->left);
+ tfree(t, ATEMP);
+
+ return (cp);
+}
+
+void
+yyrecursive_pop(bool popall)
+{
+ struct yyrecursive_state *ys;
+
+ popnext:
+ if (!(ys = e->yyrecursive_statep))
+ return;
+ e->yyrecursive_statep = ys->next;
+
+ sALIAS = ys->old_salias;
+ herep = ys->old_herep;
+ reject = ys->old_reject;
+ symbol = ys->old_symbol;
+
+ subshell_nesting_type = ys->old_nesting_type;
+
+ afree(ys, ATEMP);
+ if (popall)
+ goto popnext;
+}
Deleted: vendor/MirOS/mksh/R50/tree.c
===================================================================
--- vendor/MirOS/mksh/dist/tree.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/tree.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1143 +0,0 @@
-/* $OpenBSD: tree.c,v 1.20 2012/06/27 07:17:19 otto Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- * 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-
-__RCSID("$MirOS: src/bin/mksh/tree.c,v 1.71 2013/07/26 20:33:24 tg Exp $");
-
-#define INDENT 8
-
-static void ptree(struct op *, int, struct shf *);
-static void pioact(struct shf *, struct ioword *);
-static const char *wdvarput(struct shf *, const char *, int, int);
-static void vfptreef(struct shf *, int, const char *, va_list);
-static struct ioword **iocopy(struct ioword **, Area *);
-static void iofree(struct ioword **, Area *);
-
-/* "foo& ; bar" and "foo |& ; bar" are invalid */
-static bool prevent_semicolon;
-
-static const char Telif_pT[] = "elif %T";
-
-/*
- * print a command tree
- */
-static void
-ptree(struct op *t, int indent, struct shf *shf)
-{
- const char **w;
- struct ioword **ioact;
- struct op *t1;
- int i;
-
- Chain:
- if (t == NULL)
- return;
- switch (t->type) {
- case TCOM:
- prevent_semicolon = false;
- /*
- * special-case 'var=<<EOF' (rough; see
- * exec.c:execute() for full code)
- */
- if (
- /* we have zero arguments, i.e. no programme to run */
- t->args[0] == NULL &&
- /* we have exactly one variable assignment */
- t->vars[0] != NULL && t->vars[1] == NULL &&
- /* we have exactly one I/O redirection */
- t->ioact != NULL && t->ioact[0] != NULL &&
- t->ioact[1] == NULL &&
- /* of type "here document" (or "here string") */
- (t->ioact[0]->flag & IOTYPE) == IOHERE) {
- fptreef(shf, indent, "%S", t->vars[0]);
- break;
- }
-
- if (t->vars) {
- w = (const char **)t->vars;
- while (*w)
- fptreef(shf, indent, "%S ", *w++);
- } else
- shf_puts("#no-vars# ", shf);
- if (t->args) {
- w = t->args;
- while (*w)
- fptreef(shf, indent, "%S ", *w++);
- } else
- shf_puts("#no-args# ", shf);
- break;
- case TEXEC:
- t = t->left;
- goto Chain;
- case TPAREN:
- fptreef(shf, indent + 2, "( %T) ", t->left);
- break;
- case TPIPE:
- fptreef(shf, indent, "%T| ", t->left);
- t = t->right;
- goto Chain;
- case TLIST:
- fptreef(shf, indent, "%T%;", t->left);
- t = t->right;
- goto Chain;
- case TOR:
- case TAND:
- fptreef(shf, indent, "%T%s %T",
- t->left, (t->type == TOR) ? "||" : "&&", t->right);
- break;
- case TBANG:
- shf_puts("! ", shf);
- prevent_semicolon = false;
- t = t->right;
- goto Chain;
- case TDBRACKET:
- w = t->args;
- shf_puts("[[", shf);
- while (*w)
- fptreef(shf, indent, " %S", *w++);
- shf_puts(" ]] ", shf);
- break;
- case TSELECT:
- case TFOR:
- fptreef(shf, indent, "%s %s ",
- (t->type == TFOR) ? "for" : Tselect, t->str);
- if (t->vars != NULL) {
- shf_puts("in ", shf);
- w = (const char **)t->vars;
- while (*w)
- fptreef(shf, indent, "%S ", *w++);
- fptreef(shf, indent, "%;");
- }
- fptreef(shf, indent + INDENT, "do%N%T", t->left);
- fptreef(shf, indent, "%;done ");
- break;
- case TCASE:
- fptreef(shf, indent, "case %S in", t->str);
- for (t1 = t->left; t1 != NULL; t1 = t1->right) {
- fptreef(shf, indent, "%N(");
- w = (const char **)t1->vars;
- while (*w) {
- fptreef(shf, indent, "%S%c", *w,
- (w[1] != NULL) ? '|' : ')');
- ++w;
- }
- fptreef(shf, indent + INDENT, "%N%T%N;%c", t1->left,
- t1->u.charflag);
- }
- fptreef(shf, indent, "%Nesac ");
- break;
-#ifdef DEBUG
- case TELIF:
- internal_errorf("TELIF in tree.c:ptree() unexpected");
- /* FALLTHROUGH */
-#endif
- case TIF:
- i = 2;
- t1 = t;
- goto process_TIF;
- do {
- t1 = t1->right;
- i = 0;
- fptreef(shf, indent, "%;");
- process_TIF:
- /* 5 == strlen("elif ") */
- fptreef(shf, indent + 5 - i, Telif_pT + i, t1->left);
- t1 = t1->right;
- if (t1->left != NULL) {
- fptreef(shf, indent, "%;");
- fptreef(shf, indent + INDENT, "%s%N%T",
- "then", t1->left);
- }
- } while (t1->right && t1->right->type == TELIF);
- if (t1->right != NULL) {
- fptreef(shf, indent, "%;");
- fptreef(shf, indent + INDENT, "%s%N%T",
- "else", t1->right);
- }
- fptreef(shf, indent, "%;fi ");
- break;
- case TWHILE:
- case TUNTIL:
- /* 6 == strlen("while "/"until ") */
- fptreef(shf, indent + 6, "%s %T",
- (t->type == TWHILE) ? "while" : "until",
- t->left);
- fptreef(shf, indent, "%;");
- fptreef(shf, indent + INDENT, "do%N%T", t->right);
- fptreef(shf, indent, "%;done ");
- break;
- case TBRACE:
- fptreef(shf, indent + INDENT, "{%N%T", t->left);
- fptreef(shf, indent, "%;} ");
- break;
- case TCOPROC:
- fptreef(shf, indent, "%T|& ", t->left);
- prevent_semicolon = true;
- break;
- case TASYNC:
- fptreef(shf, indent, "%T& ", t->left);
- prevent_semicolon = true;
- break;
- case TFUNCT:
- fpFUNCTf(shf, indent, tobool(t->u.ksh_func), t->str, t->left);
- break;
- case TTIME:
- fptreef(shf, indent, "%s %T", "time", t->left);
- break;
- default:
- shf_puts("<botch>", shf);
- prevent_semicolon = false;
- break;
- }
- if ((ioact = t->ioact) != NULL) {
- bool need_nl = false;
-
- while (*ioact != NULL)
- pioact(shf, *ioact++);
- /* Print here documents after everything else... */
- ioact = t->ioact;
- while (*ioact != NULL) {
- struct ioword *iop = *ioact++;
-
- /* heredoc is NULL when tracing (set -x) */
- if ((iop->flag & (IOTYPE | IOHERESTR)) == IOHERE &&
- iop->heredoc) {
- shf_putc('\n', shf);
- shf_puts(iop->heredoc, shf);
- fptreef(shf, indent, "%s",
- iop->flag & IONDELIM ? "<<" :
- evalstr(iop->delim, 0));
- need_nl = true;
- }
- }
- /*
- * Last delimiter must be followed by a newline (this
- * often leads to an extra blank line, but it's not
- * worth worrying about)
- */
- if (need_nl) {
- shf_putc('\n', shf);
- prevent_semicolon = true;
- }
- }
-}
-
-static void
-pioact(struct shf *shf, struct ioword *iop)
-{
- int flag = iop->flag;
- int type = flag & IOTYPE;
- int expected;
-
- expected = (type == IOREAD || type == IORDWR || type == IOHERE) ? 0 :
- (type == IOCAT || type == IOWRITE) ? 1 :
- (type == IODUP && (iop->unit == !(flag & IORDUP))) ? iop->unit :
- iop->unit + 1;
- if (iop->unit != expected)
- shf_fprintf(shf, "%d", iop->unit);
-
- switch (type) {
- case IOREAD:
- shf_putc('<', shf);
- break;
- case IOHERE:
- shf_puts("<<", shf);
- if (flag & IOSKIP)
- shf_putc('-', shf);
- break;
- case IOCAT:
- shf_puts(">>", shf);
- break;
- case IOWRITE:
- shf_putc('>', shf);
- if (flag & IOCLOB)
- shf_putc('|', shf);
- break;
- case IORDWR:
- shf_puts("<>", shf);
- break;
- case IODUP:
- shf_puts(flag & IORDUP ? "<&" : ">&", shf);
- break;
- }
- /* name/delim are NULL when printing syntax errors */
- if (type == IOHERE) {
- if (iop->delim)
- wdvarput(shf, iop->delim, 0, WDS_TPUTS);
- if (iop->flag & IOHERESTR)
- shf_putc(' ', shf);
- } else if (iop->name) {
- if (iop->flag & IONAMEXP)
- print_value_quoted(shf, iop->name);
- else
- wdvarput(shf, iop->name, 0, WDS_TPUTS);
- shf_putc(' ', shf);
- }
- prevent_semicolon = false;
-}
-
-/* variant of fputs for ptreef and wdstrip */
-static const char *
-wdvarput(struct shf *shf, const char *wp, int quotelevel, int opmode)
-{
- int c;
- const char *cs;
-
- /*-
- * problems:
- * `...` -> $(...)
- * 'foo' -> "foo"
- * x${foo:-"hi"} -> x${foo:-hi} unless WDS_TPUTS
- * x${foo:-'hi'} -> x${foo:-hi} unless WDS_KEEPQ
- * could change encoding to:
- * OQUOTE ["'] ... CQUOTE ["']
- * COMSUB [(`] ...\0 (handle $ ` \ and maybe " in `...` case)
- */
- while (/* CONSTCOND */ 1)
- switch (*wp++) {
- case EOS:
- return (--wp);
- case ADELIM:
- case CHAR:
- c = *wp++;
- if ((opmode & WDS_MAGIC) &&
- (ISMAGIC(c) || c == '[' || c == '!' ||
- c == '-' || c == ']' || c == '*' || c == '?'))
- shf_putc(MAGIC, shf);
- shf_putc(c, shf);
- break;
- case QCHAR: {
- bool doq;
-
- c = *wp++;
- doq = (c == '"' || c == '`' || c == '$' || c == '\\');
- if (opmode & WDS_TPUTS) {
- if (quotelevel == 0)
- doq = true;
- } else {
- if (!(opmode & WDS_KEEPQ))
- doq = false;
- }
- if (doq)
- shf_putc('\\', shf);
- shf_putc(c, shf);
- break;
- }
- case COMSUB:
- shf_puts("$(", shf);
- cs = ")";
- pSUB:
- while ((c = *wp++) != 0)
- shf_putc(c, shf);
- shf_puts(cs, shf);
- break;
- case FUNSUB:
- c = ' ';
- if (0)
- /* FALLTHROUGH */
- case VALSUB:
- c = '|';
- shf_putc('$', shf);
- shf_putc('{', shf);
- shf_putc(c, shf);
- cs = ";}";
- goto pSUB;
- case EXPRSUB:
- shf_puts("$((", shf);
- cs = "))";
- goto pSUB;
- case OQUOTE:
- if (opmode & WDS_TPUTS) {
- quotelevel++;
- shf_putc('"', shf);
- }
- break;
- case CQUOTE:
- if (opmode & WDS_TPUTS) {
- if (quotelevel)
- quotelevel--;
- shf_putc('"', shf);
- }
- break;
- case OSUBST:
- shf_putc('$', shf);
- if (*wp++ == '{')
- shf_putc('{', shf);
- while ((c = *wp++) != 0)
- shf_putc(c, shf);
- wp = wdvarput(shf, wp, 0, opmode);
- break;
- case CSUBST:
- if (*wp++ == '}')
- shf_putc('}', shf);
- return (wp);
- case OPAT:
- if (opmode & WDS_MAGIC) {
- shf_putc(MAGIC, shf);
- shf_putchar(*wp++ | 0x80, shf);
- } else {
- shf_putchar(*wp++, shf);
- shf_putc('(', shf);
- }
- break;
- case SPAT:
- c = '|';
- if (0)
- case CPAT:
- c = /*(*/ ')';
- if (opmode & WDS_MAGIC)
- shf_putc(MAGIC, shf);
- shf_putc(c, shf);
- break;
- }
-}
-
-/*
- * this is the _only_ way to reliably handle
- * variable args with an ANSI compiler
- */
-/* VARARGS */
-void
-fptreef(struct shf *shf, int indent, const char *fmt, ...)
-{
- va_list va;
-
- va_start(va, fmt);
- vfptreef(shf, indent, fmt, va);
- va_end(va);
-}
-
-/* VARARGS */
-char *
-snptreef(char *s, ssize_t n, const char *fmt, ...)
-{
- va_list va;
- struct shf shf;
-
- shf_sopen(s, n, SHF_WR | (s ? 0 : SHF_DYNAMIC), &shf);
-
- va_start(va, fmt);
- vfptreef(&shf, 0, fmt, va);
- va_end(va);
-
- /* shf_sclose NUL terminates */
- return (shf_sclose(&shf));
-}
-
-static void
-vfptreef(struct shf *shf, int indent, const char *fmt, va_list va)
-{
- int c;
-
- while ((c = *fmt++)) {
- if (c == '%') {
- switch ((c = *fmt++)) {
- case 'c':
- /* character (octet, probably) */
- shf_putchar(va_arg(va, int), shf);
- break;
- case 's':
- /* string */
- shf_puts(va_arg(va, char *), shf);
- break;
- case 'S':
- /* word */
- wdvarput(shf, va_arg(va, char *), 0, WDS_TPUTS);
- break;
- case 'd':
- /* signed decimal */
- shf_fprintf(shf, "%d", va_arg(va, int));
- break;
- case 'u':
- /* unsigned decimal */
- shf_fprintf(shf, "%u", va_arg(va, unsigned int));
- break;
- case 'T':
- /* format tree */
- ptree(va_arg(va, struct op *), indent, shf);
- goto dont_trash_prevent_semicolon;
- case ';':
- /* newline or ; */
- case 'N':
- /* newline or space */
- if (shf->flags & SHF_STRING) {
- if (c == ';' && !prevent_semicolon)
- shf_putc(';', shf);
- shf_putc(' ', shf);
- } else {
- int i;
-
- shf_putc('\n', shf);
- i = indent;
- while (i >= 8) {
- shf_putc('\t', shf);
- i -= 8;
- }
- while (i--)
- shf_putc(' ', shf);
- }
- break;
- case 'R':
- /* I/O redirection */
- pioact(shf, va_arg(va, struct ioword *));
- break;
- default:
- shf_putc(c, shf);
- break;
- }
- } else
- shf_putc(c, shf);
- prevent_semicolon = false;
- dont_trash_prevent_semicolon:
- ;
- }
-}
-
-/*
- * copy tree (for function definition)
- */
-struct op *
-tcopy(struct op *t, Area *ap)
-{
- struct op *r;
- const char **tw;
- char **rw;
-
- if (t == NULL)
- return (NULL);
-
- r = alloc(sizeof(struct op), ap);
-
- r->type = t->type;
- r->u.evalflags = t->u.evalflags;
-
- if (t->type == TCASE)
- r->str = wdcopy(t->str, ap);
- else
- strdupx(r->str, t->str, ap);
-
- if (t->vars == NULL)
- r->vars = NULL;
- else {
- tw = (const char **)t->vars;
- while (*tw)
- ++tw;
- rw = r->vars = alloc2(tw - (const char **)t->vars + 1,
- sizeof(*tw), ap);
- tw = (const char **)t->vars;
- while (*tw)
- *rw++ = wdcopy(*tw++, ap);
- *rw = NULL;
- }
-
- if (t->args == NULL)
- r->args = NULL;
- else {
- tw = t->args;
- while (*tw)
- ++tw;
- r->args = (const char **)(rw = alloc2(tw - t->args + 1,
- sizeof(*tw), ap));
- tw = t->args;
- while (*tw)
- *rw++ = wdcopy(*tw++, ap);
- *rw = NULL;
- }
-
- r->ioact = (t->ioact == NULL) ? NULL : iocopy(t->ioact, ap);
-
- r->left = tcopy(t->left, ap);
- r->right = tcopy(t->right, ap);
- r->lineno = t->lineno;
-
- return (r);
-}
-
-char *
-wdcopy(const char *wp, Area *ap)
-{
- size_t len;
-
- len = wdscan(wp, EOS) - wp;
- return (memcpy(alloc(len, ap), wp, len));
-}
-
-/* return the position of prefix c in wp plus 1 */
-const char *
-wdscan(const char *wp, int c)
-{
- int nest = 0;
-
- while (/* CONSTCOND */ 1)
- switch (*wp++) {
- case EOS:
- return (wp);
- case ADELIM:
- if (c == ADELIM)
- return (wp + 1);
- /* FALLTHROUGH */
- case CHAR:
- case QCHAR:
- wp++;
- break;
- case COMSUB:
- case FUNSUB:
- case VALSUB:
- case EXPRSUB:
- while (*wp++ != 0)
- ;
- break;
- case OQUOTE:
- case CQUOTE:
- break;
- case OSUBST:
- nest++;
- while (*wp++ != '\0')
- ;
- break;
- case CSUBST:
- wp++;
- if (c == CSUBST && nest == 0)
- return (wp);
- nest--;
- break;
- case OPAT:
- nest++;
- wp++;
- break;
- case SPAT:
- case CPAT:
- if (c == wp[-1] && nest == 0)
- return (wp);
- if (wp[-1] == CPAT)
- nest--;
- break;
- default:
- internal_warningf(
- "wdscan: unknown char 0x%x (carrying on)",
- wp[-1]);
- }
-}
-
-/*
- * return a copy of wp without any of the mark up characters and with
- * quote characters (" ' \) stripped. (string is allocated from ATEMP)
- */
-char *
-wdstrip(const char *wp, int opmode)
-{
- struct shf shf;
-
- shf_sopen(NULL, 32, SHF_WR | SHF_DYNAMIC, &shf);
- wdvarput(&shf, wp, 0, opmode);
- /* shf_sclose NUL terminates */
- return (shf_sclose(&shf));
-}
-
-static struct ioword **
-iocopy(struct ioword **iow, Area *ap)
-{
- struct ioword **ior;
- int i;
-
- ior = iow;
- while (*ior)
- ++ior;
- ior = alloc2(ior - iow + 1, sizeof(struct ioword *), ap);
-
- for (i = 0; iow[i] != NULL; i++) {
- struct ioword *p, *q;
-
- p = iow[i];
- q = alloc(sizeof(struct ioword), ap);
- ior[i] = q;
- *q = *p;
- if (p->name != NULL)
- q->name = wdcopy(p->name, ap);
- if (p->delim != NULL)
- q->delim = wdcopy(p->delim, ap);
- if (p->heredoc != NULL)
- strdupx(q->heredoc, p->heredoc, ap);
- }
- ior[i] = NULL;
-
- return (ior);
-}
-
-/*
- * free tree (for function definition)
- */
-void
-tfree(struct op *t, Area *ap)
-{
- char **w;
-
- if (t == NULL)
- return;
-
- if (t->str != NULL)
- afree(t->str, ap);
-
- if (t->vars != NULL) {
- for (w = t->vars; *w != NULL; w++)
- afree(*w, ap);
- afree(t->vars, ap);
- }
-
- if (t->args != NULL) {
- /*XXX we assume the caller is right */
- union mksh_ccphack cw;
-
- cw.ro = t->args;
- for (w = cw.rw; *w != NULL; w++)
- afree(*w, ap);
- afree(t->args, ap);
- }
-
- if (t->ioact != NULL)
- iofree(t->ioact, ap);
-
- tfree(t->left, ap);
- tfree(t->right, ap);
-
- afree(t, ap);
-}
-
-static void
-iofree(struct ioword **iow, Area *ap)
-{
- struct ioword **iop;
- struct ioword *p;
-
- iop = iow;
- while ((p = *iop++) != NULL) {
- if (p->name != NULL)
- afree(p->name, ap);
- if (p->delim != NULL)
- afree(p->delim, ap);
- if (p->heredoc != NULL)
- afree(p->heredoc, ap);
- afree(p, ap);
- }
- afree(iow, ap);
-}
-
-void
-fpFUNCTf(struct shf *shf, int i, bool isksh, const char *k, struct op *v)
-{
- if (isksh)
- fptreef(shf, i, "%s %s %T", Tfunction, k, v);
- else
- fptreef(shf, i, "%s() %T", k, v);
-}
-
-
-/* for jobs.c */
-void
-vistree(char *dst, size_t sz, struct op *t)
-{
- unsigned int c;
- char *cp, *buf;
- size_t n;
-
- buf = alloc(sz + 16, ATEMP);
- snptreef(buf, sz + 16, "%T", t);
- cp = buf;
- vist_loop:
- if (UTFMODE && (n = utf_mbtowc(&c, cp)) != (size_t)-1) {
- if (c == 0 || n >= sz)
- /* NUL or not enough free space */
- goto vist_out;
- /* copy multibyte char */
- sz -= n;
- while (n--)
- *dst++ = *cp++;
- goto vist_loop;
- }
- if (--sz == 0 || (c = (unsigned char)(*cp++)) == 0)
- /* NUL or not enough free space */
- goto vist_out;
- if ((c & 0x60) == 0 || (c & 0x7F) == 0x7F) {
- /* C0 or C1 control character or DEL */
- if (--sz == 0)
- /* not enough free space for two chars */
- goto vist_out;
- *dst++ = (c & 0x80) ? '$' : '^';
- c = (c & 0x7F) ^ 0x40;
- } else if (UTFMODE && c > 0x7F) {
- /* better not try to display broken multibyte chars */
- c = '?';
- }
- *dst++ = c;
- goto vist_loop;
-
- vist_out:
- *dst = '\0';
- afree(buf, ATEMP);
-}
-
-#ifdef DEBUG
-void
-dumpchar(struct shf *shf, int c)
-{
- if (((c & 0x60) == 0) || ((c & 0x7F) == 0x7F)) {
- /* C0 or C1 control character or DEL */
- shf_putc((c & 0x80) ? '$' : '^', shf);
- c = (c & 0x7F) ^ 0x40;
- }
- shf_putc(c, shf);
-}
-
-/* see: wdvarput */
-static const char *
-dumpwdvar_i(struct shf *shf, const char *wp, int quotelevel)
-{
- int c;
-
- while (/* CONSTCOND */ 1) {
- switch(*wp++) {
- case EOS:
- shf_puts("EOS", shf);
- return (--wp);
- case ADELIM:
- shf_puts("ADELIM=", shf);
- if (0)
- case CHAR:
- shf_puts("CHAR=", shf);
- dumpchar(shf, *wp++);
- break;
- case QCHAR:
- shf_puts("QCHAR<", shf);
- c = *wp++;
- if (quotelevel == 0 ||
- (c == '"' || c == '`' || c == '$' || c == '\\'))
- shf_putc('\\', shf);
- dumpchar(shf, c);
- goto closeandout;
- case COMSUB:
- shf_puts("COMSUB<", shf);
- dumpsub:
- while ((c = *wp++) != 0)
- dumpchar(shf, c);
- closeandout:
- shf_putc('>', shf);
- break;
- case FUNSUB:
- shf_puts("FUNSUB<", shf);
- goto dumpsub;
- case VALSUB:
- shf_puts("VALSUB<", shf);
- goto dumpsub;
- case EXPRSUB:
- shf_puts("EXPRSUB<", shf);
- goto dumpsub;
- case OQUOTE:
- shf_fprintf(shf, "OQUOTE{%d", ++quotelevel);
- break;
- case CQUOTE:
- shf_fprintf(shf, "%d}CQUOTE", quotelevel);
- if (quotelevel)
- quotelevel--;
- else
- shf_puts("(err)", shf);
- break;
- case OSUBST:
- shf_puts("OSUBST(", shf);
- dumpchar(shf, *wp++);
- shf_puts(")[", shf);
- while ((c = *wp++) != 0)
- dumpchar(shf, c);
- shf_putc('|', shf);
- wp = dumpwdvar_i(shf, wp, 0);
- break;
- case CSUBST:
- shf_puts("]CSUBST(", shf);
- dumpchar(shf, *wp++);
- shf_putc(')', shf);
- return (wp);
- case OPAT:
- shf_puts("OPAT=", shf);
- dumpchar(shf, *wp++);
- break;
- case SPAT:
- shf_puts("SPAT", shf);
- break;
- case CPAT:
- shf_puts("CPAT", shf);
- break;
- default:
- shf_fprintf(shf, "INVAL<%u>", (uint8_t)wp[-1]);
- break;
- }
- shf_putc(' ', shf);
- }
-}
-void
-dumpwdvar(struct shf *shf, const char *wp)
-{
- dumpwdvar_i(shf, wp, 0);
-}
-
-void
-dumpioact(struct shf *shf, struct op *t)
-{
- struct ioword **ioact, *iop;
-
- if ((ioact = t->ioact) == NULL)
- return;
-
- shf_puts("{IOACT", shf);
- while ((iop = *ioact++) != NULL) {
- int type = iop->flag & IOTYPE;
-#define DT(x) case x: shf_puts(#x, shf); break;
-#define DB(x) if (iop->flag & x) shf_puts("|" #x, shf);
-
- shf_putc(';', shf);
- switch (type) {
- DT(IOREAD)
- DT(IOWRITE)
- DT(IORDWR)
- DT(IOHERE)
- DT(IOCAT)
- DT(IODUP)
- default:
- shf_fprintf(shf, "unk%d", type);
- }
- DB(IOEVAL)
- DB(IOSKIP)
- DB(IOCLOB)
- DB(IORDUP)
- DB(IONAMEXP)
- DB(IOBASH)
- DB(IOHERESTR)
- DB(IONDELIM)
- shf_fprintf(shf, ",unit=%d", iop->unit);
- if (iop->delim) {
- shf_puts(",delim<", shf);
- dumpwdvar(shf, iop->delim);
- shf_putc('>', shf);
- }
- if (iop->name) {
- if (iop->flag & IONAMEXP) {
- shf_puts(",name=", shf);
- print_value_quoted(shf, iop->name);
- } else {
- shf_puts(",name<", shf);
- dumpwdvar(shf, iop->name);
- shf_putc('>', shf);
- }
- }
- if (iop->heredoc) {
- shf_puts(",heredoc=", shf);
- print_value_quoted(shf, iop->heredoc);
- }
-#undef DT
-#undef DB
- }
- shf_putc('}', shf);
-}
-
-void
-dumptree(struct shf *shf, struct op *t)
-{
- int i, j;
- const char **w, *name;
- struct op *t1;
- static int nesting;
-
- for (i = 0; i < nesting; ++i)
- shf_putc('\t', shf);
- ++nesting;
- shf_puts("{tree:" /*}*/, shf);
- if (t == NULL) {
- name = "(null)";
- goto out;
- }
- dumpioact(shf, t);
- switch (t->type) {
-#define OPEN(x) case x: name = #x; shf_puts(" {" #x ":", shf); /*}*/
-
- OPEN(TCOM)
- if (t->vars) {
- i = 0;
- w = (const char **)t->vars;
- while (*w) {
- shf_putc('\n', shf);
- for (j = 0; j < nesting; ++j)
- shf_putc('\t', shf);
- shf_fprintf(shf, " var%d<", i++);
- dumpwdvar(shf, *w++);
- shf_putc('>', shf);
- }
- } else
- shf_puts(" #no-vars#", shf);
- if (t->args) {
- i = 0;
- w = t->args;
- while (*w) {
- shf_putc('\n', shf);
- for (j = 0; j < nesting; ++j)
- shf_putc('\t', shf);
- shf_fprintf(shf, " arg%d<", i++);
- dumpwdvar(shf, *w++);
- shf_putc('>', shf);
- }
- } else
- shf_puts(" #no-args#", shf);
- break;
- OPEN(TEXEC)
- dumpleftandout:
- t = t->left;
- dumpandout:
- shf_putc('\n', shf);
- dumptree(shf, t);
- break;
- OPEN(TPAREN)
- goto dumpleftandout;
- OPEN(TPIPE)
- dumpleftmidrightandout:
- shf_putc('\n', shf);
- dumptree(shf, t->left);
-/* middumprightandout: (unused) */
- shf_fprintf(shf, "/%s:", name);
- dumprightandout:
- t = t->right;
- goto dumpandout;
- OPEN(TLIST)
- goto dumpleftmidrightandout;
- OPEN(TOR)
- goto dumpleftmidrightandout;
- OPEN(TAND)
- goto dumpleftmidrightandout;
- OPEN(TBANG)
- goto dumprightandout;
- OPEN(TDBRACKET)
- i = 0;
- w = t->args;
- while (*w) {
- shf_putc('\n', shf);
- for (j = 0; j < nesting; ++j)
- shf_putc('\t', shf);
- shf_fprintf(shf, " arg%d<", i++);
- dumpwdvar(shf, *w++);
- shf_putc('>', shf);
- }
- break;
- OPEN(TFOR)
- dumpfor:
- shf_fprintf(shf, " str<%s>", t->str);
- if (t->vars != NULL) {
- i = 0;
- w = (const char **)t->vars;
- while (*w) {
- shf_putc('\n', shf);
- for (j = 0; j < nesting; ++j)
- shf_putc('\t', shf);
- shf_fprintf(shf, " var%d<", i++);
- dumpwdvar(shf, *w++);
- shf_putc('>', shf);
- }
- }
- goto dumpleftandout;
- OPEN(TSELECT)
- goto dumpfor;
- OPEN(TCASE)
- shf_fprintf(shf, " str<%s>", t->str);
- i = 0;
- for (t1 = t->left; t1 != NULL; t1 = t1->right) {
- shf_putc('\n', shf);
- for (j = 0; j < nesting; ++j)
- shf_putc('\t', shf);
- shf_fprintf(shf, " sub%d[(", i);
- w = (const char **)t1->vars;
- while (*w) {
- dumpwdvar(shf, *w);
- if (w[1] != NULL)
- shf_putc('|', shf);
- ++w;
- }
- shf_putc(')', shf);
- dumpioact(shf, t);
- shf_putc('\n', shf);
- dumptree(shf, t1->left);
- shf_fprintf(shf, " ;%c/%d]", t1->u.charflag, i++);
- }
- break;
- OPEN(TWHILE)
- goto dumpleftmidrightandout;
- OPEN(TUNTIL)
- goto dumpleftmidrightandout;
- OPEN(TBRACE)
- goto dumpleftandout;
- OPEN(TCOPROC)
- goto dumpleftandout;
- OPEN(TASYNC)
- goto dumpleftandout;
- OPEN(TFUNCT)
- shf_fprintf(shf, " str<%s> ksh<%s>", t->str,
- t->u.ksh_func ? "yes" : "no");
- goto dumpleftandout;
- OPEN(TTIME)
- goto dumpleftandout;
- OPEN(TIF)
- dumpif:
- shf_putc('\n', shf);
- dumptree(shf, t->left);
- t = t->right;
- dumpioact(shf, t);
- if (t->left != NULL) {
- shf_puts(" /TTHEN:\n", shf);
- dumptree(shf, t->left);
- }
- if (t->right && t->right->type == TELIF) {
- shf_puts(" /TELIF:", shf);
- t = t->right;
- dumpioact(shf, t);
- goto dumpif;
- }
- if (t->right != NULL) {
- shf_puts(" /TELSE:\n", shf);
- dumptree(shf, t->right);
- }
- break;
- OPEN(TEOF)
- dumpunexpected:
- shf_puts("unexpected", shf);
- break;
- OPEN(TELIF)
- goto dumpunexpected;
- OPEN(TPAT)
- goto dumpunexpected;
- default:
- name = "TINVALID";
- shf_fprintf(shf, "{T<%d>:" /*}*/, t->type);
- goto dumpunexpected;
-
-#undef OPEN
- }
- out:
- shf_fprintf(shf, /*{*/ " /%s}\n", name);
- --nesting;
-}
-#endif
Copied: vendor/MirOS/mksh/R50/tree.c (from rev 6707, vendor/MirOS/mksh/dist/tree.c)
===================================================================
--- vendor/MirOS/mksh/R50/tree.c (rev 0)
+++ vendor/MirOS/mksh/R50/tree.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1144 @@
+/* $OpenBSD: tree.c,v 1.20 2012/06/27 07:17:19 otto Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2013
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+
+__RCSID("$MirOS: src/bin/mksh/tree.c,v 1.72 2013/09/24 20:19:45 tg Exp $");
+
+#define INDENT 8
+
+static void ptree(struct op *, int, struct shf *);
+static void pioact(struct shf *, struct ioword *);
+static const char *wdvarput(struct shf *, const char *, int, int);
+static void vfptreef(struct shf *, int, const char *, va_list);
+static struct ioword **iocopy(struct ioword **, Area *);
+static void iofree(struct ioword **, Area *);
+
+/* "foo& ; bar" and "foo |& ; bar" are invalid */
+static bool prevent_semicolon;
+
+static const char Telif_pT[] = "elif %T";
+
+/*
+ * print a command tree
+ */
+static void
+ptree(struct op *t, int indent, struct shf *shf)
+{
+ const char **w;
+ struct ioword **ioact;
+ struct op *t1;
+ int i;
+
+ Chain:
+ if (t == NULL)
+ return;
+ switch (t->type) {
+ case TCOM:
+ prevent_semicolon = false;
+ /*
+ * special-case 'var=<<EOF' (rough; see
+ * exec.c:execute() for full code)
+ */
+ if (
+ /* we have zero arguments, i.e. no programme to run */
+ t->args[0] == NULL &&
+ /* we have exactly one variable assignment */
+ t->vars[0] != NULL && t->vars[1] == NULL &&
+ /* we have exactly one I/O redirection */
+ t->ioact != NULL && t->ioact[0] != NULL &&
+ t->ioact[1] == NULL &&
+ /* of type "here document" (or "here string") */
+ (t->ioact[0]->flag & IOTYPE) == IOHERE) {
+ fptreef(shf, indent, "%S", t->vars[0]);
+ break;
+ }
+
+ if (t->vars) {
+ w = (const char **)t->vars;
+ while (*w)
+ fptreef(shf, indent, "%S ", *w++);
+ } else
+ shf_puts("#no-vars# ", shf);
+ if (t->args) {
+ w = t->args;
+ while (*w)
+ fptreef(shf, indent, "%S ", *w++);
+ } else
+ shf_puts("#no-args# ", shf);
+ break;
+ case TEXEC:
+ t = t->left;
+ goto Chain;
+ case TPAREN:
+ fptreef(shf, indent + 2, "( %T) ", t->left);
+ break;
+ case TPIPE:
+ fptreef(shf, indent, "%T| ", t->left);
+ t = t->right;
+ goto Chain;
+ case TLIST:
+ fptreef(shf, indent, "%T%;", t->left);
+ t = t->right;
+ goto Chain;
+ case TOR:
+ case TAND:
+ fptreef(shf, indent, "%T%s %T",
+ t->left, (t->type == TOR) ? "||" : "&&", t->right);
+ break;
+ case TBANG:
+ shf_puts("! ", shf);
+ prevent_semicolon = false;
+ t = t->right;
+ goto Chain;
+ case TDBRACKET:
+ w = t->args;
+ shf_puts("[[", shf);
+ while (*w)
+ fptreef(shf, indent, " %S", *w++);
+ shf_puts(" ]] ", shf);
+ break;
+ case TSELECT:
+ case TFOR:
+ fptreef(shf, indent, "%s %s ",
+ (t->type == TFOR) ? "for" : Tselect, t->str);
+ if (t->vars != NULL) {
+ shf_puts("in ", shf);
+ w = (const char **)t->vars;
+ while (*w)
+ fptreef(shf, indent, "%S ", *w++);
+ fptreef(shf, indent, "%;");
+ }
+ fptreef(shf, indent + INDENT, "do%N%T", t->left);
+ fptreef(shf, indent, "%;done ");
+ break;
+ case TCASE:
+ fptreef(shf, indent, "case %S in", t->str);
+ for (t1 = t->left; t1 != NULL; t1 = t1->right) {
+ fptreef(shf, indent, "%N(");
+ w = (const char **)t1->vars;
+ while (*w) {
+ fptreef(shf, indent, "%S%c", *w,
+ (w[1] != NULL) ? '|' : ')');
+ ++w;
+ }
+ fptreef(shf, indent + INDENT, "%N%T%N;%c", t1->left,
+ t1->u.charflag);
+ }
+ fptreef(shf, indent, "%Nesac ");
+ break;
+#ifdef DEBUG
+ case TELIF:
+ internal_errorf("TELIF in tree.c:ptree() unexpected");
+ /* FALLTHROUGH */
+#endif
+ case TIF:
+ i = 2;
+ t1 = t;
+ goto process_TIF;
+ do {
+ t1 = t1->right;
+ i = 0;
+ fptreef(shf, indent, "%;");
+ process_TIF:
+ /* 5 == strlen("elif ") */
+ fptreef(shf, indent + 5 - i, Telif_pT + i, t1->left);
+ t1 = t1->right;
+ if (t1->left != NULL) {
+ fptreef(shf, indent, "%;");
+ fptreef(shf, indent + INDENT, "%s%N%T",
+ "then", t1->left);
+ }
+ } while (t1->right && t1->right->type == TELIF);
+ if (t1->right != NULL) {
+ fptreef(shf, indent, "%;");
+ fptreef(shf, indent + INDENT, "%s%N%T",
+ "else", t1->right);
+ }
+ fptreef(shf, indent, "%;fi ");
+ break;
+ case TWHILE:
+ case TUNTIL:
+ /* 6 == strlen("while "/"until ") */
+ fptreef(shf, indent + 6, "%s %T",
+ (t->type == TWHILE) ? "while" : "until",
+ t->left);
+ fptreef(shf, indent, "%;");
+ fptreef(shf, indent + INDENT, "do%N%T", t->right);
+ fptreef(shf, indent, "%;done ");
+ break;
+ case TBRACE:
+ fptreef(shf, indent + INDENT, "{%N%T", t->left);
+ fptreef(shf, indent, "%;} ");
+ break;
+ case TCOPROC:
+ fptreef(shf, indent, "%T|& ", t->left);
+ prevent_semicolon = true;
+ break;
+ case TASYNC:
+ fptreef(shf, indent, "%T& ", t->left);
+ prevent_semicolon = true;
+ break;
+ case TFUNCT:
+ fpFUNCTf(shf, indent, tobool(t->u.ksh_func), t->str, t->left);
+ break;
+ case TTIME:
+ fptreef(shf, indent, "%s %T", "time", t->left);
+ break;
+ default:
+ shf_puts("<botch>", shf);
+ prevent_semicolon = false;
+ break;
+ }
+ if ((ioact = t->ioact) != NULL) {
+ bool need_nl = false;
+
+ while (*ioact != NULL)
+ pioact(shf, *ioact++);
+ /* Print here documents after everything else... */
+ ioact = t->ioact;
+ while (*ioact != NULL) {
+ struct ioword *iop = *ioact++;
+
+ /* heredoc is NULL when tracing (set -x) */
+ if ((iop->flag & (IOTYPE | IOHERESTR)) == IOHERE &&
+ iop->heredoc) {
+ shf_putc('\n', shf);
+ shf_puts(iop->heredoc, shf);
+ fptreef(shf, indent, "%s",
+ iop->flag & IONDELIM ? "<<" :
+ evalstr(iop->delim, 0));
+ need_nl = true;
+ }
+ }
+ /*
+ * Last delimiter must be followed by a newline (this
+ * often leads to an extra blank line, but it's not
+ * worth worrying about)
+ */
+ if (need_nl) {
+ shf_putc('\n', shf);
+ prevent_semicolon = true;
+ }
+ }
+}
+
+static void
+pioact(struct shf *shf, struct ioword *iop)
+{
+ int flag = iop->flag;
+ int type = flag & IOTYPE;
+ int expected;
+
+ expected = (type == IOREAD || type == IORDWR || type == IOHERE) ? 0 :
+ (type == IOCAT || type == IOWRITE) ? 1 :
+ (type == IODUP && (iop->unit == !(flag & IORDUP))) ? iop->unit :
+ iop->unit + 1;
+ if (iop->unit != expected)
+ shf_fprintf(shf, "%d", iop->unit);
+
+ switch (type) {
+ case IOREAD:
+ shf_putc('<', shf);
+ break;
+ case IOHERE:
+ shf_puts("<<", shf);
+ if (flag & IOSKIP)
+ shf_putc('-', shf);
+ break;
+ case IOCAT:
+ shf_puts(">>", shf);
+ break;
+ case IOWRITE:
+ shf_putc('>', shf);
+ if (flag & IOCLOB)
+ shf_putc('|', shf);
+ break;
+ case IORDWR:
+ shf_puts("<>", shf);
+ break;
+ case IODUP:
+ shf_puts(flag & IORDUP ? "<&" : ">&", shf);
+ break;
+ }
+ /* name/delim are NULL when printing syntax errors */
+ if (type == IOHERE) {
+ if (iop->delim)
+ wdvarput(shf, iop->delim, 0, WDS_TPUTS);
+ if (iop->flag & IOHERESTR)
+ shf_putc(' ', shf);
+ } else if (iop->name) {
+ if (iop->flag & IONAMEXP)
+ print_value_quoted(shf, iop->name);
+ else
+ wdvarput(shf, iop->name, 0, WDS_TPUTS);
+ shf_putc(' ', shf);
+ }
+ prevent_semicolon = false;
+}
+
+/* variant of fputs for ptreef and wdstrip */
+static const char *
+wdvarput(struct shf *shf, const char *wp, int quotelevel, int opmode)
+{
+ int c;
+ const char *cs;
+
+ /*-
+ * problems:
+ * `...` -> $(...)
+ * 'foo' -> "foo"
+ * x${foo:-"hi"} -> x${foo:-hi} unless WDS_TPUTS
+ * x${foo:-'hi'} -> x${foo:-hi} unless WDS_KEEPQ
+ * could change encoding to:
+ * OQUOTE ["'] ... CQUOTE ["']
+ * COMSUB [(`] ...\0 (handle $ ` \ and maybe " in `...` case)
+ */
+ while (/* CONSTCOND */ 1)
+ switch (*wp++) {
+ case EOS:
+ return (--wp);
+ case ADELIM:
+ case CHAR:
+ c = *wp++;
+ if ((opmode & WDS_MAGIC) &&
+ (ISMAGIC(c) || c == '[' || c == '!' ||
+ c == '-' || c == ']' || c == '*' || c == '?'))
+ shf_putc(MAGIC, shf);
+ shf_putc(c, shf);
+ break;
+ case QCHAR: {
+ bool doq;
+
+ c = *wp++;
+ doq = (c == '"' || c == '`' || c == '$' || c == '\\');
+ if (opmode & WDS_TPUTS) {
+ if (quotelevel == 0)
+ doq = true;
+ } else {
+ if (!(opmode & WDS_KEEPQ))
+ doq = false;
+ }
+ if (doq)
+ shf_putc('\\', shf);
+ shf_putc(c, shf);
+ break;
+ }
+ case COMSUB:
+ shf_puts("$(", shf);
+ cs = ")";
+ pSUB:
+ while ((c = *wp++) != 0)
+ shf_putc(c, shf);
+ shf_puts(cs, shf);
+ break;
+ case FUNSUB:
+ c = ' ';
+ if (0)
+ /* FALLTHROUGH */
+ case VALSUB:
+ c = '|';
+ shf_putc('$', shf);
+ shf_putc('{', shf);
+ shf_putc(c, shf);
+ cs = ";}";
+ goto pSUB;
+ case EXPRSUB:
+ shf_puts("$((", shf);
+ cs = "))";
+ goto pSUB;
+ case OQUOTE:
+ if (opmode & WDS_TPUTS) {
+ quotelevel++;
+ shf_putc('"', shf);
+ }
+ break;
+ case CQUOTE:
+ if (opmode & WDS_TPUTS) {
+ if (quotelevel)
+ quotelevel--;
+ shf_putc('"', shf);
+ }
+ break;
+ case OSUBST:
+ shf_putc('$', shf);
+ if (*wp++ == '{')
+ shf_putc('{', shf);
+ while ((c = *wp++) != 0)
+ shf_putc(c, shf);
+ wp = wdvarput(shf, wp, 0, opmode);
+ break;
+ case CSUBST:
+ if (*wp++ == '}')
+ shf_putc('}', shf);
+ return (wp);
+ case OPAT:
+ if (opmode & WDS_MAGIC) {
+ shf_putc(MAGIC, shf);
+ shf_putchar(*wp++ | 0x80, shf);
+ } else {
+ shf_putchar(*wp++, shf);
+ shf_putc('(', shf);
+ }
+ break;
+ case SPAT:
+ c = '|';
+ if (0)
+ case CPAT:
+ c = /*(*/ ')';
+ if (opmode & WDS_MAGIC)
+ shf_putc(MAGIC, shf);
+ shf_putc(c, shf);
+ break;
+ }
+}
+
+/*
+ * this is the _only_ way to reliably handle
+ * variable args with an ANSI compiler
+ */
+/* VARARGS */
+void
+fptreef(struct shf *shf, int indent, const char *fmt, ...)
+{
+ va_list va;
+
+ va_start(va, fmt);
+ vfptreef(shf, indent, fmt, va);
+ va_end(va);
+}
+
+/* VARARGS */
+char *
+snptreef(char *s, ssize_t n, const char *fmt, ...)
+{
+ va_list va;
+ struct shf shf;
+
+ shf_sopen(s, n, SHF_WR | (s ? 0 : SHF_DYNAMIC), &shf);
+
+ va_start(va, fmt);
+ vfptreef(&shf, 0, fmt, va);
+ va_end(va);
+
+ /* shf_sclose NUL terminates */
+ return (shf_sclose(&shf));
+}
+
+static void
+vfptreef(struct shf *shf, int indent, const char *fmt, va_list va)
+{
+ int c;
+
+ while ((c = *fmt++)) {
+ if (c == '%') {
+ switch ((c = *fmt++)) {
+ case 'c':
+ /* character (octet, probably) */
+ shf_putchar(va_arg(va, int), shf);
+ break;
+ case 's':
+ /* string */
+ shf_puts(va_arg(va, char *), shf);
+ break;
+ case 'S':
+ /* word */
+ wdvarput(shf, va_arg(va, char *), 0, WDS_TPUTS);
+ break;
+ case 'd':
+ /* signed decimal */
+ shf_fprintf(shf, "%d", va_arg(va, int));
+ break;
+ case 'u':
+ /* unsigned decimal */
+ shf_fprintf(shf, "%u", va_arg(va, unsigned int));
+ break;
+ case 'T':
+ /* format tree */
+ ptree(va_arg(va, struct op *), indent, shf);
+ goto dont_trash_prevent_semicolon;
+ case ';':
+ /* newline or ; */
+ case 'N':
+ /* newline or space */
+ if (shf->flags & SHF_STRING) {
+ if (c == ';' && !prevent_semicolon)
+ shf_putc(';', shf);
+ shf_putc(' ', shf);
+ } else {
+ int i;
+
+ shf_putc('\n', shf);
+ i = indent;
+ while (i >= 8) {
+ shf_putc('\t', shf);
+ i -= 8;
+ }
+ while (i--)
+ shf_putc(' ', shf);
+ }
+ break;
+ case 'R':
+ /* I/O redirection */
+ pioact(shf, va_arg(va, struct ioword *));
+ break;
+ default:
+ shf_putc(c, shf);
+ break;
+ }
+ } else
+ shf_putc(c, shf);
+ prevent_semicolon = false;
+ dont_trash_prevent_semicolon:
+ ;
+ }
+}
+
+/*
+ * copy tree (for function definition)
+ */
+struct op *
+tcopy(struct op *t, Area *ap)
+{
+ struct op *r;
+ const char **tw;
+ char **rw;
+
+ if (t == NULL)
+ return (NULL);
+
+ r = alloc(sizeof(struct op), ap);
+
+ r->type = t->type;
+ r->u.evalflags = t->u.evalflags;
+
+ if (t->type == TCASE)
+ r->str = wdcopy(t->str, ap);
+ else
+ strdupx(r->str, t->str, ap);
+
+ if (t->vars == NULL)
+ r->vars = NULL;
+ else {
+ tw = (const char **)t->vars;
+ while (*tw)
+ ++tw;
+ rw = r->vars = alloc2(tw - (const char **)t->vars + 1,
+ sizeof(*tw), ap);
+ tw = (const char **)t->vars;
+ while (*tw)
+ *rw++ = wdcopy(*tw++, ap);
+ *rw = NULL;
+ }
+
+ if (t->args == NULL)
+ r->args = NULL;
+ else {
+ tw = t->args;
+ while (*tw)
+ ++tw;
+ r->args = (const char **)(rw = alloc2(tw - t->args + 1,
+ sizeof(*tw), ap));
+ tw = t->args;
+ while (*tw)
+ *rw++ = wdcopy(*tw++, ap);
+ *rw = NULL;
+ }
+
+ r->ioact = (t->ioact == NULL) ? NULL : iocopy(t->ioact, ap);
+
+ r->left = tcopy(t->left, ap);
+ r->right = tcopy(t->right, ap);
+ r->lineno = t->lineno;
+
+ return (r);
+}
+
+char *
+wdcopy(const char *wp, Area *ap)
+{
+ size_t len;
+
+ len = wdscan(wp, EOS) - wp;
+ return (memcpy(alloc(len, ap), wp, len));
+}
+
+/* return the position of prefix c in wp plus 1 */
+const char *
+wdscan(const char *wp, int c)
+{
+ int nest = 0;
+
+ while (/* CONSTCOND */ 1)
+ switch (*wp++) {
+ case EOS:
+ return (wp);
+ case ADELIM:
+ if (c == ADELIM)
+ return (wp + 1);
+ /* FALLTHROUGH */
+ case CHAR:
+ case QCHAR:
+ wp++;
+ break;
+ case COMSUB:
+ case FUNSUB:
+ case VALSUB:
+ case EXPRSUB:
+ while (*wp++ != 0)
+ ;
+ break;
+ case OQUOTE:
+ case CQUOTE:
+ break;
+ case OSUBST:
+ nest++;
+ while (*wp++ != '\0')
+ ;
+ break;
+ case CSUBST:
+ wp++;
+ if (c == CSUBST && nest == 0)
+ return (wp);
+ nest--;
+ break;
+ case OPAT:
+ nest++;
+ wp++;
+ break;
+ case SPAT:
+ case CPAT:
+ if (c == wp[-1] && nest == 0)
+ return (wp);
+ if (wp[-1] == CPAT)
+ nest--;
+ break;
+ default:
+ internal_warningf(
+ "wdscan: unknown char 0x%x (carrying on)",
+ wp[-1]);
+ }
+}
+
+/*
+ * return a copy of wp without any of the mark up characters and with
+ * quote characters (" ' \) stripped. (string is allocated from ATEMP)
+ */
+char *
+wdstrip(const char *wp, int opmode)
+{
+ struct shf shf;
+
+ shf_sopen(NULL, 32, SHF_WR | SHF_DYNAMIC, &shf);
+ wdvarput(&shf, wp, 0, opmode);
+ /* shf_sclose NUL terminates */
+ return (shf_sclose(&shf));
+}
+
+static struct ioword **
+iocopy(struct ioword **iow, Area *ap)
+{
+ struct ioword **ior;
+ int i;
+
+ ior = iow;
+ while (*ior)
+ ++ior;
+ ior = alloc2(ior - iow + 1, sizeof(struct ioword *), ap);
+
+ for (i = 0; iow[i] != NULL; i++) {
+ struct ioword *p, *q;
+
+ p = iow[i];
+ q = alloc(sizeof(struct ioword), ap);
+ ior[i] = q;
+ *q = *p;
+ if (p->name != NULL)
+ q->name = wdcopy(p->name, ap);
+ if (p->delim != NULL)
+ q->delim = wdcopy(p->delim, ap);
+ if (p->heredoc != NULL)
+ strdupx(q->heredoc, p->heredoc, ap);
+ }
+ ior[i] = NULL;
+
+ return (ior);
+}
+
+/*
+ * free tree (for function definition)
+ */
+void
+tfree(struct op *t, Area *ap)
+{
+ char **w;
+
+ if (t == NULL)
+ return;
+
+ if (t->str != NULL)
+ afree(t->str, ap);
+
+ if (t->vars != NULL) {
+ for (w = t->vars; *w != NULL; w++)
+ afree(*w, ap);
+ afree(t->vars, ap);
+ }
+
+ if (t->args != NULL) {
+ /*XXX we assume the caller is right */
+ union mksh_ccphack cw;
+
+ cw.ro = t->args;
+ for (w = cw.rw; *w != NULL; w++)
+ afree(*w, ap);
+ afree(t->args, ap);
+ }
+
+ if (t->ioact != NULL)
+ iofree(t->ioact, ap);
+
+ tfree(t->left, ap);
+ tfree(t->right, ap);
+
+ afree(t, ap);
+}
+
+static void
+iofree(struct ioword **iow, Area *ap)
+{
+ struct ioword **iop;
+ struct ioword *p;
+
+ iop = iow;
+ while ((p = *iop++) != NULL) {
+ if (p->name != NULL)
+ afree(p->name, ap);
+ if (p->delim != NULL)
+ afree(p->delim, ap);
+ if (p->heredoc != NULL)
+ afree(p->heredoc, ap);
+ afree(p, ap);
+ }
+ afree(iow, ap);
+}
+
+void
+fpFUNCTf(struct shf *shf, int i, bool isksh, const char *k, struct op *v)
+{
+ if (isksh)
+ fptreef(shf, i, "%s %s %T", Tfunction, k, v);
+ else
+ fptreef(shf, i, "%s() %T", k, v);
+}
+
+
+/* for jobs.c */
+void
+vistree(char *dst, size_t sz, struct op *t)
+{
+ unsigned int c;
+ char *cp, *buf;
+ size_t n;
+
+ buf = alloc(sz + 16, ATEMP);
+ snptreef(buf, sz + 16, "%T", t);
+ cp = buf;
+ vist_loop:
+ if (UTFMODE && (n = utf_mbtowc(&c, cp)) != (size_t)-1) {
+ if (c == 0 || n >= sz)
+ /* NUL or not enough free space */
+ goto vist_out;
+ /* copy multibyte char */
+ sz -= n;
+ while (n--)
+ *dst++ = *cp++;
+ goto vist_loop;
+ }
+ if (--sz == 0 || (c = (unsigned char)(*cp++)) == 0)
+ /* NUL or not enough free space */
+ goto vist_out;
+ if (ISCTRL(c & 0x7F)) {
+ /* C0 or C1 control character or DEL */
+ if (--sz == 0)
+ /* not enough free space for two chars */
+ goto vist_out;
+ *dst++ = (c & 0x80) ? '$' : '^';
+ c = UNCTRL(c & 0x7F);
+ } else if (UTFMODE && c > 0x7F) {
+ /* better not try to display broken multibyte chars */
+ /* also go easy on the Unicode: no U+FFFD here */
+ c = '?';
+ }
+ *dst++ = c;
+ goto vist_loop;
+
+ vist_out:
+ *dst = '\0';
+ afree(buf, ATEMP);
+}
+
+#ifdef DEBUG
+void
+dumpchar(struct shf *shf, int c)
+{
+ if (ISCTRL(c & 0x7F)) {
+ /* C0 or C1 control character or DEL */
+ shf_putc((c & 0x80) ? '$' : '^', shf);
+ c = UNCTRL(c & 0x7F);
+ }
+ shf_putc(c, shf);
+}
+
+/* see: wdvarput */
+static const char *
+dumpwdvar_i(struct shf *shf, const char *wp, int quotelevel)
+{
+ int c;
+
+ while (/* CONSTCOND */ 1) {
+ switch(*wp++) {
+ case EOS:
+ shf_puts("EOS", shf);
+ return (--wp);
+ case ADELIM:
+ shf_puts("ADELIM=", shf);
+ if (0)
+ case CHAR:
+ shf_puts("CHAR=", shf);
+ dumpchar(shf, *wp++);
+ break;
+ case QCHAR:
+ shf_puts("QCHAR<", shf);
+ c = *wp++;
+ if (quotelevel == 0 ||
+ (c == '"' || c == '`' || c == '$' || c == '\\'))
+ shf_putc('\\', shf);
+ dumpchar(shf, c);
+ goto closeandout;
+ case COMSUB:
+ shf_puts("COMSUB<", shf);
+ dumpsub:
+ while ((c = *wp++) != 0)
+ dumpchar(shf, c);
+ closeandout:
+ shf_putc('>', shf);
+ break;
+ case FUNSUB:
+ shf_puts("FUNSUB<", shf);
+ goto dumpsub;
+ case VALSUB:
+ shf_puts("VALSUB<", shf);
+ goto dumpsub;
+ case EXPRSUB:
+ shf_puts("EXPRSUB<", shf);
+ goto dumpsub;
+ case OQUOTE:
+ shf_fprintf(shf, "OQUOTE{%d", ++quotelevel);
+ break;
+ case CQUOTE:
+ shf_fprintf(shf, "%d}CQUOTE", quotelevel);
+ if (quotelevel)
+ quotelevel--;
+ else
+ shf_puts("(err)", shf);
+ break;
+ case OSUBST:
+ shf_puts("OSUBST(", shf);
+ dumpchar(shf, *wp++);
+ shf_puts(")[", shf);
+ while ((c = *wp++) != 0)
+ dumpchar(shf, c);
+ shf_putc('|', shf);
+ wp = dumpwdvar_i(shf, wp, 0);
+ break;
+ case CSUBST:
+ shf_puts("]CSUBST(", shf);
+ dumpchar(shf, *wp++);
+ shf_putc(')', shf);
+ return (wp);
+ case OPAT:
+ shf_puts("OPAT=", shf);
+ dumpchar(shf, *wp++);
+ break;
+ case SPAT:
+ shf_puts("SPAT", shf);
+ break;
+ case CPAT:
+ shf_puts("CPAT", shf);
+ break;
+ default:
+ shf_fprintf(shf, "INVAL<%u>", (uint8_t)wp[-1]);
+ break;
+ }
+ shf_putc(' ', shf);
+ }
+}
+void
+dumpwdvar(struct shf *shf, const char *wp)
+{
+ dumpwdvar_i(shf, wp, 0);
+}
+
+void
+dumpioact(struct shf *shf, struct op *t)
+{
+ struct ioword **ioact, *iop;
+
+ if ((ioact = t->ioact) == NULL)
+ return;
+
+ shf_puts("{IOACT", shf);
+ while ((iop = *ioact++) != NULL) {
+ int type = iop->flag & IOTYPE;
+#define DT(x) case x: shf_puts(#x, shf); break;
+#define DB(x) if (iop->flag & x) shf_puts("|" #x, shf);
+
+ shf_putc(';', shf);
+ switch (type) {
+ DT(IOREAD)
+ DT(IOWRITE)
+ DT(IORDWR)
+ DT(IOHERE)
+ DT(IOCAT)
+ DT(IODUP)
+ default:
+ shf_fprintf(shf, "unk%d", type);
+ }
+ DB(IOEVAL)
+ DB(IOSKIP)
+ DB(IOCLOB)
+ DB(IORDUP)
+ DB(IONAMEXP)
+ DB(IOBASH)
+ DB(IOHERESTR)
+ DB(IONDELIM)
+ shf_fprintf(shf, ",unit=%d", iop->unit);
+ if (iop->delim) {
+ shf_puts(",delim<", shf);
+ dumpwdvar(shf, iop->delim);
+ shf_putc('>', shf);
+ }
+ if (iop->name) {
+ if (iop->flag & IONAMEXP) {
+ shf_puts(",name=", shf);
+ print_value_quoted(shf, iop->name);
+ } else {
+ shf_puts(",name<", shf);
+ dumpwdvar(shf, iop->name);
+ shf_putc('>', shf);
+ }
+ }
+ if (iop->heredoc) {
+ shf_puts(",heredoc=", shf);
+ print_value_quoted(shf, iop->heredoc);
+ }
+#undef DT
+#undef DB
+ }
+ shf_putc('}', shf);
+}
+
+void
+dumptree(struct shf *shf, struct op *t)
+{
+ int i, j;
+ const char **w, *name;
+ struct op *t1;
+ static int nesting;
+
+ for (i = 0; i < nesting; ++i)
+ shf_putc('\t', shf);
+ ++nesting;
+ shf_puts("{tree:" /*}*/, shf);
+ if (t == NULL) {
+ name = "(null)";
+ goto out;
+ }
+ dumpioact(shf, t);
+ switch (t->type) {
+#define OPEN(x) case x: name = #x; shf_puts(" {" #x ":", shf); /*}*/
+
+ OPEN(TCOM)
+ if (t->vars) {
+ i = 0;
+ w = (const char **)t->vars;
+ while (*w) {
+ shf_putc('\n', shf);
+ for (j = 0; j < nesting; ++j)
+ shf_putc('\t', shf);
+ shf_fprintf(shf, " var%d<", i++);
+ dumpwdvar(shf, *w++);
+ shf_putc('>', shf);
+ }
+ } else
+ shf_puts(" #no-vars#", shf);
+ if (t->args) {
+ i = 0;
+ w = t->args;
+ while (*w) {
+ shf_putc('\n', shf);
+ for (j = 0; j < nesting; ++j)
+ shf_putc('\t', shf);
+ shf_fprintf(shf, " arg%d<", i++);
+ dumpwdvar(shf, *w++);
+ shf_putc('>', shf);
+ }
+ } else
+ shf_puts(" #no-args#", shf);
+ break;
+ OPEN(TEXEC)
+ dumpleftandout:
+ t = t->left;
+ dumpandout:
+ shf_putc('\n', shf);
+ dumptree(shf, t);
+ break;
+ OPEN(TPAREN)
+ goto dumpleftandout;
+ OPEN(TPIPE)
+ dumpleftmidrightandout:
+ shf_putc('\n', shf);
+ dumptree(shf, t->left);
+/* middumprightandout: (unused) */
+ shf_fprintf(shf, "/%s:", name);
+ dumprightandout:
+ t = t->right;
+ goto dumpandout;
+ OPEN(TLIST)
+ goto dumpleftmidrightandout;
+ OPEN(TOR)
+ goto dumpleftmidrightandout;
+ OPEN(TAND)
+ goto dumpleftmidrightandout;
+ OPEN(TBANG)
+ goto dumprightandout;
+ OPEN(TDBRACKET)
+ i = 0;
+ w = t->args;
+ while (*w) {
+ shf_putc('\n', shf);
+ for (j = 0; j < nesting; ++j)
+ shf_putc('\t', shf);
+ shf_fprintf(shf, " arg%d<", i++);
+ dumpwdvar(shf, *w++);
+ shf_putc('>', shf);
+ }
+ break;
+ OPEN(TFOR)
+ dumpfor:
+ shf_fprintf(shf, " str<%s>", t->str);
+ if (t->vars != NULL) {
+ i = 0;
+ w = (const char **)t->vars;
+ while (*w) {
+ shf_putc('\n', shf);
+ for (j = 0; j < nesting; ++j)
+ shf_putc('\t', shf);
+ shf_fprintf(shf, " var%d<", i++);
+ dumpwdvar(shf, *w++);
+ shf_putc('>', shf);
+ }
+ }
+ goto dumpleftandout;
+ OPEN(TSELECT)
+ goto dumpfor;
+ OPEN(TCASE)
+ shf_fprintf(shf, " str<%s>", t->str);
+ i = 0;
+ for (t1 = t->left; t1 != NULL; t1 = t1->right) {
+ shf_putc('\n', shf);
+ for (j = 0; j < nesting; ++j)
+ shf_putc('\t', shf);
+ shf_fprintf(shf, " sub%d[(", i);
+ w = (const char **)t1->vars;
+ while (*w) {
+ dumpwdvar(shf, *w);
+ if (w[1] != NULL)
+ shf_putc('|', shf);
+ ++w;
+ }
+ shf_putc(')', shf);
+ dumpioact(shf, t);
+ shf_putc('\n', shf);
+ dumptree(shf, t1->left);
+ shf_fprintf(shf, " ;%c/%d]", t1->u.charflag, i++);
+ }
+ break;
+ OPEN(TWHILE)
+ goto dumpleftmidrightandout;
+ OPEN(TUNTIL)
+ goto dumpleftmidrightandout;
+ OPEN(TBRACE)
+ goto dumpleftandout;
+ OPEN(TCOPROC)
+ goto dumpleftandout;
+ OPEN(TASYNC)
+ goto dumpleftandout;
+ OPEN(TFUNCT)
+ shf_fprintf(shf, " str<%s> ksh<%s>", t->str,
+ t->u.ksh_func ? "yes" : "no");
+ goto dumpleftandout;
+ OPEN(TTIME)
+ goto dumpleftandout;
+ OPEN(TIF)
+ dumpif:
+ shf_putc('\n', shf);
+ dumptree(shf, t->left);
+ t = t->right;
+ dumpioact(shf, t);
+ if (t->left != NULL) {
+ shf_puts(" /TTHEN:\n", shf);
+ dumptree(shf, t->left);
+ }
+ if (t->right && t->right->type == TELIF) {
+ shf_puts(" /TELIF:", shf);
+ t = t->right;
+ dumpioact(shf, t);
+ goto dumpif;
+ }
+ if (t->right != NULL) {
+ shf_puts(" /TELSE:\n", shf);
+ dumptree(shf, t->right);
+ }
+ break;
+ OPEN(TEOF)
+ dumpunexpected:
+ shf_puts("unexpected", shf);
+ break;
+ OPEN(TELIF)
+ goto dumpunexpected;
+ OPEN(TPAT)
+ goto dumpunexpected;
+ default:
+ name = "TINVALID";
+ shf_fprintf(shf, "{T<%d>:" /*}*/, t->type);
+ goto dumpunexpected;
+
+#undef OPEN
+ }
+ out:
+ shf_fprintf(shf, /*{*/ " /%s}\n", name);
+ --nesting;
+}
+#endif
Deleted: vendor/MirOS/mksh/R50/var.c
===================================================================
--- vendor/MirOS/mksh/dist/var.c 2014-06-30 23:58:12 UTC (rev 6706)
+++ vendor/MirOS/mksh/R50/var.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -1,1569 +0,0 @@
-/* $OpenBSD: var.c,v 1.35 2013/04/05 01:31:30 tedu Exp $ */
-
-/*-
- * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- * 2011, 2012, 2013
- * Thorsten Glaser <tg at mirbsd.org>
- *
- * Provided that these terms and disclaimer and all copyright notices
- * are retained or reproduced in an accompanying document, permission
- * is granted to deal in this work without restriction, including un-
- * limited rights to use, publicly perform, distribute, sell, modify,
- * merge, give away, or sublicence.
- *
- * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
- * the utmost extent permitted by applicable law, neither express nor
- * implied; without malicious intent or gross negligence. In no event
- * may a licensor, author or contributor be held liable for indirect,
- * direct, other damage, loss, or other issues arising in any way out
- * of dealing in the work, even if advised of the possibility of such
- * damage or existence of a defect, except proven that it results out
- * of said person's immediate fault when using the work as intended.
- */
-
-#include "sh.h"
-
-#if defined(__OpenBSD__)
-#include <sys/sysctl.h>
-#endif
-
-__RCSID("$MirOS: src/bin/mksh/var.c,v 1.173 2013/05/31 22:47:14 tg Exp $");
-
-/*-
- * Variables
- *
- * WARNING: unreadable code, needs a rewrite
- *
- * if (flag&INTEGER), val.i contains integer value, and type contains base.
- * otherwise, (val.s + type) contains string value.
- * if (flag&EXPORT), val.s contains "name=value" for E-Z exporting.
- */
-
-static struct table specials;
-static uint32_t lcg_state = 5381;
-
-static char *formatstr(struct tbl *, const char *);
-static void exportprep(struct tbl *, const char *);
-static int special(const char *);
-static void unspecial(const char *);
-static void getspec(struct tbl *);
-static void setspec(struct tbl *);
-static void unsetspec(struct tbl *);
-static int getint(struct tbl *, mksh_ari_u *, bool);
-static const char *array_index_calc(const char *, bool *, uint32_t *);
-
-/*
- * create a new block for function calls and simple commands
- * assume caller has allocated and set up e->loc
- */
-void
-newblock(void)
-{
- struct block *l;
- static const char *empty[] = { null };
-
- l = alloc(sizeof(struct block), ATEMP);
- l->flags = 0;
- /* TODO: could use e->area (l->area => l->areap) */
- ainit(&l->area);
- if (!e->loc) {
- l->argc = 0;
- l->argv = empty;
- } else {
- l->argc = e->loc->argc;
- l->argv = e->loc->argv;
- }
- l->exit = l->error = NULL;
- ktinit(&l->area, &l->vars, 0);
- ktinit(&l->area, &l->funs, 0);
- l->next = e->loc;
- e->loc = l;
-}
-
-/*
- * pop a block handling special variables
- */
-void
-popblock(void)
-{
- ssize_t i;
- struct block *l = e->loc;
- struct tbl *vp, **vpp = l->vars.tbls, *vq;
-
- /* pop block */
- e->loc = l->next;
-
- i = 1 << (l->vars.tshift);
- while (--i >= 0)
- if ((vp = *vpp++) != NULL && (vp->flag&SPECIAL)) {
- if ((vq = global(vp->name))->flag & ISSET)
- setspec(vq);
- else
- unsetspec(vq);
- }
- if (l->flags & BF_DOGETOPTS)
- user_opt = l->getopts_state;
- afreeall(&l->area);
- afree(l, ATEMP);
-}
-
-/* called by main() to initialise variable data structures */
-#define VARSPEC_DEFNS
-#include "var_spec.h"
-
-enum var_specs {
-#define VARSPEC_ENUMS
-#include "var_spec.h"
- V_MAX
-};
-
-/* this is biased with -1 relative to VARSPEC_ENUMS */
-static const char * const initvar_names[] = {
-#define VARSPEC_ITEMS
-#include "var_spec.h"
-};
-
-void
-initvar(void)
-{
- int i = 0;
- struct tbl *tp;
-
- ktinit(APERM, &specials,
- /* currently 14 specials: 75% of 32 = 2^5 */
- 5);
- while (i < V_MAX - 1) {
- tp = ktenter(&specials, initvar_names[i],
- hash(initvar_names[i]));
- tp->flag = DEFINED|ISSET;
- tp->type = ++i;
- }
-}
-
-/* common code for several functions below and c_typeset() */
-struct block *
-varsearch(struct block *l, struct tbl **vpp, const char *vn, uint32_t h)
-{
- register struct tbl *vp;
-
- if (l) {
- varsearch_loop:
- if ((vp = ktsearch(&l->vars, vn, h)) != NULL)
- goto varsearch_out;
- if (l->next != NULL) {
- l = l->next;
- goto varsearch_loop;
- }
- }
- vp = NULL;
- varsearch_out:
- *vpp = vp;
- return (l);
-}
-
-/*
- * Used to calculate an array index for global()/local(). Sets *arrayp
- * to true if this is an array, sets *valp to the array index, returns
- * the basename of the array.
- */
-static const char *
-array_index_calc(const char *n, bool *arrayp, uint32_t *valp)
-{
- const char *p;
- size_t len;
- char *ap = NULL;
-
- *arrayp = false;
- redo_from_ref:
- p = skip_varname(n, false);
- if (set_refflag == SRF_NOP && (p != n) && ksh_isalphx(n[0])) {
- struct tbl *vp;
- char *vn;
-
- strndupx(vn, n, p - n, ATEMP);
- /* check if this is a reference */
- varsearch(e->loc, &vp, vn, hash(vn));
- afree(vn, ATEMP);
- if (vp && (vp->flag & (DEFINED|ASSOC|ARRAY)) ==
- (DEFINED|ASSOC)) {
- char *cp;
-
- /* gotcha! */
- cp = shf_smprintf("%s%s", str_val(vp), p);
- afree(ap, ATEMP);
- n = ap = cp;
- goto redo_from_ref;
- }
- }
-
- if (p != n && *p == '[' && (len = array_ref_len(p))) {
- char *sub, *tmp;
- mksh_ari_t rval;
-
- /* calculate the value of the subscript */
- *arrayp = true;
- strndupx(tmp, p + 1, len - 2, ATEMP);
- sub = substitute(tmp, 0);
- afree(tmp, ATEMP);
- strndupx(n, n, p - n, ATEMP);
- evaluate(sub, &rval, KSH_UNWIND_ERROR, true);
- *valp = (uint32_t)rval;
- afree(sub, ATEMP);
- }
- return (n);
-}
-
-/*
- * Search for variable, if not found create globally.
- */
-struct tbl *
-global(const char *n)
-{
- struct block *l = e->loc;
- struct tbl *vp;
- int c;
- bool array;
- uint32_t h, val;
-
- /* Check to see if this is an array */
- n = array_index_calc(n, &array, &val);
- h = hash(n);
- c = n[0];
- if (!ksh_isalphx(c)) {
- if (array)
- errorf("bad substitution");
- vp = &vtemp;
- vp->flag = DEFINED;
- vp->type = 0;
- vp->areap = ATEMP;
- *vp->name = c;
- if (ksh_isdigit(c)) {
- for (c = 0; ksh_isdigit(*n); n++)
- c = c*10 + *n-'0';
- if (c <= l->argc)
- /* setstr can't fail here */
- setstr(vp, l->argv[c], KSH_RETURN_ERROR);
- vp->flag |= RDONLY;
- return (vp);
- }
- vp->flag |= RDONLY;
- if (n[1] != '\0')
- return (vp);
- vp->flag |= ISSET|INTEGER;
- switch (c) {
- case '$':
- vp->val.i = kshpid;
- break;
- case '!':
- /* if no job, expand to nothing */
- if ((vp->val.i = j_async()) == 0)
- vp->flag &= ~(ISSET|INTEGER);
- break;
- case '?':
- vp->val.i = exstat & 0xFF;
- break;
- case '#':
- vp->val.i = l->argc;
- break;
- case '-':
- vp->flag &= ~INTEGER;
- vp->val.s = getoptions();
- break;
- default:
- vp->flag &= ~(ISSET|INTEGER);
- }
- return (vp);
- }
- l = varsearch(e->loc, &vp, n, h);
- if (vp != NULL)
- return (array ? arraysearch(vp, val) : vp);
- vp = ktenter(&l->vars, n, h);
- if (array)
- vp = arraysearch(vp, val);
- vp->flag |= DEFINED;
- if (special(n))
- vp->flag |= SPECIAL;
- return (vp);
-}
-
-/*
- * Search for local variable, if not found create locally.
- */
-struct tbl *
-local(const char *n, bool copy)
-{
- struct block *l = e->loc;
- struct tbl *vp;
- bool array;
- uint32_t h, val;
-
- /* check to see if this is an array */
- n = array_index_calc(n, &array, &val);
- mkssert(n != NULL);
- h = hash(n);
- if (!ksh_isalphx(*n)) {
- vp = &vtemp;
- vp->flag = DEFINED|RDONLY;
- vp->type = 0;
- vp->areap = ATEMP;
- return (vp);
- }
- vp = ktenter(&l->vars, n, h);
- if (copy && !(vp->flag & DEFINED)) {
- struct tbl *vq;
-
- varsearch(l->next, &vq, n, h);
- if (vq != NULL) {
- vp->flag |= vq->flag &
- (EXPORT | INTEGER | RDONLY | LJUST | RJUST |
- ZEROFIL | LCASEV | UCASEV_AL | INT_U | INT_L);
- if (vq->flag & INTEGER)
- vp->type = vq->type;
- vp->u2.field = vq->u2.field;
- }
- }
- if (array)
- vp = arraysearch(vp, val);
- vp->flag |= DEFINED;
- if (special(n))
- vp->flag |= SPECIAL;
- return (vp);
-}
-
-/* get variable string value */
-char *
-str_val(struct tbl *vp)
-{
- char *s;
-
- if ((vp->flag&SPECIAL))
- getspec(vp);
- if (!(vp->flag&ISSET))
- /* special to dollar() */
- s = null;
- else if (!(vp->flag&INTEGER))
- /* string source */
- s = vp->val.s + vp->type;
- else {
- /* integer source */
- mksh_uari_t n;
- unsigned int base;
- /**
- * worst case number length is when base == 2:
- * 1 (minus) + 2 (base, up to 36) + 1 ('#') +
- * number of bits in the mksh_uari_t + 1 (NUL)
- */
- char strbuf[1 + 2 + 1 + 8 * sizeof(mksh_uari_t) + 1];
- const char *digits = (vp->flag & UCASEV_AL) ?
- digits_uc : digits_lc;
-
- s = strbuf + sizeof(strbuf);
- if (vp->flag & INT_U)
- n = vp->val.u;
- else
- n = (vp->val.i < 0) ? -vp->val.u : vp->val.u;
- base = (vp->type == 0) ? 10U : (unsigned int)vp->type;
-
- if (base == 1 && n == 0)
- base = 2;
- if (base == 1) {
- size_t sz = 1;
-
- *(s = strbuf) = '1';
- s[1] = '#';
- if (!UTFMODE || ((n & 0xFF80) == 0xEF80))
- /* OPTU-16 -> raw octet */
- s[2] = n & 0xFF;
- else
- sz = utf_wctomb(s + 2, n);
- s[2 + sz] = '\0';
- } else {
- *--s = '\0';
- do {
- *--s = digits[n % base];
- n /= base;
- } while (n != 0);
- if (base != 10) {
- *--s = '#';
- *--s = digits[base % 10];
- if (base >= 10)
- *--s = digits[base / 10];
- }
- if (!(vp->flag & INT_U) && vp->val.i < 0)
- *--s = '-';
- }
- if (vp->flag & (RJUST|LJUST))
- /* case already dealt with */
- s = formatstr(vp, s);
- else
- strdupx(s, s, ATEMP);
- }
- return (s);
-}
-
-/* set variable to string value */
-int
-setstr(struct tbl *vq, const char *s, int error_ok)
-{
- char *salloc = NULL;
- bool no_ro_check = tobool(error_ok & 0x4);
-
- error_ok &= ~0x4;
- if ((vq->flag & RDONLY) && !no_ro_check) {
- warningf(true, "read-only: %s", vq->name);
- if (!error_ok)
- errorfxz(2);
- return (0);
- }
- if (!(vq->flag&INTEGER)) {
- /* string dest */
- if ((vq->flag&ALLOC)) {
-#ifndef MKSH_SMALL
- /* debugging */
- if (s >= vq->val.s &&
- s <= vq->val.s + strlen(vq->val.s)) {
- internal_errorf(
- "setstr: %s=%s: assigning to self",
- vq->name, s);
- }
-#endif
- afree(vq->val.s, vq->areap);
- }
- vq->flag &= ~(ISSET|ALLOC);
- vq->type = 0;
- if (s && (vq->flag & (UCASEV_AL|LCASEV|LJUST|RJUST)))
- s = salloc = formatstr(vq, s);
- if ((vq->flag&EXPORT))
- exportprep(vq, s);
- else {
- strdupx(vq->val.s, s, vq->areap);
- vq->flag |= ALLOC;
- }
- } else {
- /* integer dest */
- if (!v_evaluate(vq, s, error_ok, true))
- return (0);
- }
- vq->flag |= ISSET;
- if ((vq->flag&SPECIAL))
- setspec(vq);
- afree(salloc, ATEMP);
- return (1);
-}
-
-/* set variable to integer */
-void
-setint(struct tbl *vq, mksh_ari_t n)
-{
- if (!(vq->flag&INTEGER)) {
- struct tbl *vp = &vtemp;
- vp->flag = (ISSET|INTEGER);
- vp->type = 0;
- vp->areap = ATEMP;
- vp->val.i = n;
- /* setstr can't fail here */
- setstr(vq, str_val(vp), KSH_RETURN_ERROR);
- } else
- vq->val.i = n;
- vq->flag |= ISSET;
- if ((vq->flag&SPECIAL))
- setspec(vq);
-}
-
-static int
-getint(struct tbl *vp, mksh_ari_u *nump, bool arith)
-{
- mksh_uari_t c, num, base;
- const char *s;
- bool have_base = false, neg = false;
-
- if (vp->flag&SPECIAL)
- getspec(vp);
- /* XXX is it possible for ISSET to be set and val.s to be NULL? */
- if (!(vp->flag&ISSET) || (!(vp->flag&INTEGER) && vp->val.s == NULL))
- return (-1);
- if (vp->flag&INTEGER) {
- nump->i = vp->val.i;
- return (vp->type);
- }
- s = vp->val.s + vp->type;
- base = 10;
- num = 0;
- if (arith && s[0] == '0' && (s[1] | 0x20) == 'x') {
- s += 2;
- base = 16;
- have_base = true;
- }
- if (Flag(FPOSIX) && arith && s[0] == '0' && ksh_isdigit(s[1]) &&
- !(vp->flag & ZEROFIL)) {
- /* interpret as octal (deprecated) */
- base = 8;
- have_base = true;
- }
- while ((c = *s++)) {
- if (c == '-') {
- neg = true;
- continue;
- } else if (c == '#') {
- if (have_base || num < 1 || num > 36)
- return (-1);
- if ((base = num) == 1) {
- unsigned int wc;
-
- if (!UTFMODE)
- wc = *(const unsigned char *)s;
- else if (utf_mbtowc(&wc, s) == (size_t)-1)
- /* OPTU-8 -> OPTU-16 */
- /*
- * (with a twist: 1#\uEF80 converts
- * the same as 1#\x80 does, thus is
- * not round-tripping correctly XXX)
- */
- wc = 0xEF00 + *(const unsigned char *)s;
- nump->u = (mksh_uari_t)wc;
- return (1);
- }
- num = 0;
- have_base = true;
- continue;
- } else if (ksh_isdigit(c))
- c -= '0';
- else if (ksh_islower(c))
- c -= 'a' - 10;
- else if (ksh_isupper(c))
- c -= 'A' - 10;
- else
- return (-1);
- if (c >= base)
- return (-1);
- num = num * base + c;
- }
- if (neg)
- num = -num;
- nump->u = num;
- return (base);
-}
-
-/*
- * convert variable vq to integer variable, setting its value from vp
- * (vq and vp may be the same)
- */
-struct tbl *
-setint_v(struct tbl *vq, struct tbl *vp, bool arith)
-{
- int base;
- mksh_ari_u num;
-
- if ((base = getint(vp, &num, arith)) == -1)
- return (NULL);
- setint_n(vq, num.i, 0);
- if (vq->type == 0)
- /* default base */
- vq->type = base;
- return (vq);
-}
-
-/* convert variable vq to integer variable, setting its value to num */
-void
-setint_n(struct tbl *vq, mksh_ari_t num, int newbase)
-{
- if (!(vq->flag & INTEGER) && (vq->flag & ALLOC)) {
- vq->flag &= ~ALLOC;
- vq->type = 0;
- afree(vq->val.s, vq->areap);
- }
- vq->val.i = num;
- if (newbase != 0)
- vq->type = newbase;
- vq->flag |= ISSET|INTEGER;
- if (vq->flag&SPECIAL)
- setspec(vq);
-}
-
-static char *
-formatstr(struct tbl *vp, const char *s)
-{
- int olen, nlen;
- char *p, *q;
- size_t psiz;
-
- olen = (int)utf_mbswidth(s);
-
- if (vp->flag & (RJUST|LJUST)) {
- if (!vp->u2.field)
- /* default field width */
- vp->u2.field = olen;
- nlen = vp->u2.field;
- } else
- nlen = olen;
-
- p = alloc((psiz = nlen * /* MB_LEN_MAX */ 3 + 1), ATEMP);
- if (vp->flag & (RJUST|LJUST)) {
- int slen = olen, i = 0;
-
- if (vp->flag & RJUST) {
- const char *qq = s;
- int n = 0;
-
- while (i < slen)
- i += utf_widthadj(qq, &qq);
- /* strip trailing spaces (AT&T uses qq[-1] == ' ') */
- while (qq > s && ksh_isspace(qq[-1])) {
- --qq;
- --slen;
- }
- if (vp->flag & ZEROFIL && vp->flag & INTEGER) {
- if (!s[0] || !s[1])
- goto uhm_no;
- if (s[1] == '#')
- n = 2;
- else if (s[2] == '#')
- n = 3;
- uhm_no:
- if (vp->u2.field <= n)
- n = 0;
- }
- if (n) {
- memcpy(p, s, n);
- s += n;
- }
- while (slen > vp->u2.field)
- slen -= utf_widthadj(s, &s);
- if (vp->u2.field - slen)
- memset(p + n, (vp->flag & ZEROFIL) ? '0' : ' ',
- vp->u2.field - slen);
- slen -= n;
- shf_snprintf(p + vp->u2.field - slen,
- psiz - (vp->u2.field - slen),
- "%.*s", slen, s);
- } else {
- /* strip leading spaces/zeros */
- while (ksh_isspace(*s))
- s++;
- if (vp->flag & ZEROFIL)
- while (*s == '0')
- s++;
- shf_snprintf(p, nlen + 1, "%-*.*s",
- vp->u2.field, vp->u2.field, s);
- }
- } else
- memcpy(p, s, strlen(s) + 1);
-
- if (vp->flag & UCASEV_AL) {
- for (q = p; *q; q++)
- *q = ksh_toupper(*q);
- } else if (vp->flag & LCASEV) {
- for (q = p; *q; q++)
- *q = ksh_tolower(*q);
- }
-
- return (p);
-}
-
-/*
- * make vp->val.s be "name=value" for quick exporting.
- */
-static void
-exportprep(struct tbl *vp, const char *val)
-{
- char *xp;
- char *op = (vp->flag&ALLOC) ? vp->val.s : NULL;
- size_t namelen, vallen;
-
- mkssert(val != NULL);
-
- namelen = strlen(vp->name);
- vallen = strlen(val) + 1;
-
- vp->flag |= ALLOC;
- /* since name+val are both in memory this can go unchecked */
- xp = alloc(namelen + 1 + vallen, vp->areap);
- memcpy(vp->val.s = xp, vp->name, namelen);
- xp += namelen;
- *xp++ = '=';
- /* offset to value */
- vp->type = xp - vp->val.s;
- memcpy(xp, val, vallen);
- if (op != NULL)
- afree(op, vp->areap);
-}
-
-/*
- * lookup variable (according to (set&LOCAL)), set its attributes
- * (INTEGER, RDONLY, EXPORT, TRACE, LJUST, RJUST, ZEROFIL, LCASEV,
- * UCASEV_AL), and optionally set its value if an assignment.
- */
-struct tbl *
-typeset(const char *var, uint32_t set, uint32_t clr, int field, int base)
-{
- struct tbl *vp;
- struct tbl *vpbase, *t;
- char *tvar;
- const char *val;
- size_t len;
- bool vappend = false;
-
- /* check for valid variable name, search for value */
- val = skip_varname(var, false);
- if (val == var) {
- /* no variable name given */
- return (NULL);
- }
- if (*val == '[') {
- if (set_refflag != SRF_NOP)
- errorf("%s: %s", var,
- "reference variable can't be an array");
- len = array_ref_len(val);
- if (len == 0)
- return (NULL);
- /*
- * IMPORT is only used when the shell starts up and is
- * setting up its environment. Allow only simple array
- * references at this time since parameter/command
- * substitution is performed on the [expression] which
- * would be a major security hole.
- */
- if (set & IMPORT) {
- size_t i;
-
- for (i = 1; i < len - 1; i++)
- if (!ksh_isdigit(val[i]))
- return (NULL);
- }
- val += len;
- }
- if (val[0] == '=' || (val[0] == '+' && val[1] == '=')) {
- strndupx(tvar, var, val - var, ATEMP);
- if (*val++ == '+') {
- ++val;
- vappend = true;
- }
- } else if ((val[0] != '\0') || (set & IMPORT)) {
- /*
- * must have a = when setting a variable by importing
- * the original environment, otherwise be empty; we
- * also end up here when a variable name was invalid
- */
- return (NULL);
- } else {
- /* just varname with no value part nor equals sign */
- strdupx(tvar, var, ATEMP);
- val = NULL;
- /* handle foo[*] => foo (whole array) mapping for R39b */
- len = strlen(tvar);
- if (len > 3 && tvar[len - 3] == '[' && tvar[len - 2] == '*' &&
- tvar[len - 1] == ']')
- tvar[len - 3] = '\0';
- }
-
- if (set_refflag == SRF_ENABLE) {
- const char *qval;
-
- /* bail out on 'nameref foo+=bar' */
- if (vappend)
- errorfz();
- /* find value if variable already exists */
- if ((qval = val) == NULL) {
- varsearch(e->loc, &vp, tvar, hash(tvar));
- if (vp != NULL)
- qval = str_val(vp);
- }
- /* prevent nameref loops */
- while (qval) {
- if (!strcmp(qval, tvar))
- errorf("%s: %s", qval,
- "expression recurses on parameter");
- varsearch(e->loc, &vp, qval, hash(qval));
- qval = NULL;
- if (vp && ((vp->flag & (ARRAY|ASSOC)) == ASSOC))
- qval = str_val(vp);
- }
- }
-
- /* prevent typeset from creating a local PATH/ENV/SHELL */
- if (Flag(FRESTRICTED) && (strcmp(tvar, "PATH") == 0 ||
- strcmp(tvar, "ENV") == 0 || strcmp(tvar, "SHELL") == 0))
- errorf("%s: %s", tvar, "restricted");
-
- vp = (set&LOCAL) ? local(tvar, tobool(set & LOCAL_COPY)) :
- global(tvar);
- if (set_refflag == SRF_DISABLE && (vp->flag & (ARRAY|ASSOC)) == ASSOC)
- vp->flag &= ~ASSOC;
- else if (set_refflag == SRF_ENABLE) {
- if (vp->flag & ARRAY) {
- struct tbl *a, *tmp;
-
- /* free up entire array */
- for (a = vp->u.array; a; ) {
- tmp = a;
- a = a->u.array;
- if (tmp->flag & ALLOC)
- afree(tmp->val.s, tmp->areap);
- afree(tmp, tmp->areap);
- }
- vp->u.array = NULL;
- vp->flag &= ~ARRAY;
- }
- vp->flag |= ASSOC;
- }
-
- set &= ~(LOCAL|LOCAL_COPY);
-
- vpbase = (vp->flag & ARRAY) ? global(arrayname(var)) : vp;
-
- /*
- * only allow export flag to be set; AT&T ksh allows any
- * attribute to be changed which means it can be truncated or
- * modified (-L/-R/-Z/-i)
- */
- if ((vpbase->flag&RDONLY) &&
- (val || clr || (set & ~EXPORT)))
- /* XXX check calls - is error here ok by POSIX? */
- errorfx(2, "read-only: %s", tvar);
- afree(tvar, ATEMP);
-
- /* most calls are with set/clr == 0 */
- if (set | clr) {
- bool ok = true;
-
- /*
- * XXX if x[0] isn't set, there will be problems: need
- * to have one copy of attributes for arrays...
- */
- for (t = vpbase; t; t = t->u.array) {
- bool fake_assign;
- char *s = NULL;
- char *free_me = NULL;
-
- fake_assign = (t->flag & ISSET) && (!val || t != vp) &&
- ((set & (UCASEV_AL|LCASEV|LJUST|RJUST|ZEROFIL)) ||
- ((t->flag & INTEGER) && (clr & INTEGER)) ||
- (!(t->flag & INTEGER) && (set & INTEGER)));
- if (fake_assign) {
- if (t->flag & INTEGER) {
- s = str_val(t);
- free_me = NULL;
- } else {
- s = t->val.s + t->type;
- free_me = (t->flag & ALLOC) ? t->val.s :
- NULL;
- }
- t->flag &= ~ALLOC;
- }
- if (!(t->flag & INTEGER) && (set & INTEGER)) {
- t->type = 0;
- t->flag &= ~ALLOC;
- }
- t->flag = (t->flag | set) & ~clr;
- /*
- * Don't change base if assignment is to be
- * done, in case assignment fails.
- */
- if ((set & INTEGER) && base > 0 && (!val || t != vp))
- t->type = base;
- if (set & (LJUST|RJUST|ZEROFIL))
- t->u2.field = field;
- if (fake_assign) {
- if (!setstr(t, s, KSH_RETURN_ERROR)) {
- /*
- * Somewhat arbitrary action
- * here: zap contents of
- * variable, but keep the flag
- * settings.
- */
- ok = false;
- if (t->flag & INTEGER)
- t->flag &= ~ISSET;
- else {
- if (t->flag & ALLOC)
- afree(t->val.s, t->areap);
- t->flag &= ~(ISSET|ALLOC);
- t->type = 0;
- }
- }
- if (free_me)
- afree(free_me, t->areap);
- }
- }
- if (!ok)
- errorfz();
- }
-
- if (val != NULL) {
- char *tval;
-
- if (vappend) {
- tval = shf_smprintf("%s%s", str_val(vp), val);
- val = tval;
- } else
- tval = NULL;
-
- if (vp->flag&INTEGER) {
- /* do not zero base before assignment */
- setstr(vp, val, KSH_UNWIND_ERROR | 0x4);
- /* done after assignment to override default */
- if (base > 0)
- vp->type = base;
- } else
- /* setstr can't fail (readonly check already done) */
- setstr(vp, val, KSH_RETURN_ERROR | 0x4);
-
- if (tval != NULL)
- afree(tval, ATEMP);
- }
-
- /* only x[0] is ever exported, so use vpbase */
- if ((vpbase->flag&EXPORT) && !(vpbase->flag&INTEGER) &&
- vpbase->type == 0)
- exportprep(vpbase, (vpbase->flag&ISSET) ? vpbase->val.s : null);
-
- return (vp);
-}
-
-/**
- * Unset a variable. The flags can be:
- * |1 = tear down entire array
- * |2 = keep attributes, only unset content
- */
-void
-unset(struct tbl *vp, int flags)
-{
- if (vp->flag & ALLOC)
- afree(vp->val.s, vp->areap);
- if ((vp->flag & ARRAY) && (flags & 1)) {
- struct tbl *a, *tmp;
-
- /* free up entire array */
- for (a = vp->u.array; a; ) {
- tmp = a;
- a = a->u.array;
- if (tmp->flag & ALLOC)
- afree(tmp->val.s, tmp->areap);
- afree(tmp, tmp->areap);
- }
- vp->u.array = NULL;
- }
- if (flags & 2) {
- vp->flag &= ~(ALLOC|ISSET);
- return;
- }
- /* if foo[0] is being unset, the remainder of the array is kept... */
- vp->flag &= SPECIAL | ((flags & 1) ? 0 : ARRAY|DEFINED);
- if (vp->flag & SPECIAL)
- /* responsible for 'unspecial'ing var */
- unsetspec(vp);
-}
-
-/*
- * Return a pointer to the first char past a legal variable name
- * (returns the argument if there is no legal name, returns a pointer to
- * the terminating NUL if whole string is legal).
- */
-const char *
-skip_varname(const char *s, int aok)
-{
- size_t alen;
-
- if (s && ksh_isalphx(*s)) {
- while (*++s && ksh_isalnux(*s))
- ;
- if (aok && *s == '[' && (alen = array_ref_len(s)))
- s += alen;
- }
- return (s);
-}
-
-/* Return a pointer to the first character past any legal variable name */
-const char *
-skip_wdvarname(const char *s,
- /* skip array de-reference? */
- bool aok)
-{
- if (s[0] == CHAR && ksh_isalphx(s[1])) {
- do {
- s += 2;
- } while (s[0] == CHAR && ksh_isalnux(s[1]));
- if (aok && s[0] == CHAR && s[1] == '[') {
- /* skip possible array de-reference */
- const char *p = s;
- char c;
- int depth = 0;
-
- while (/* CONSTCOND */ 1) {
- if (p[0] != CHAR)
- break;
- c = p[1];
- p += 2;
- if (c == '[')
- depth++;
- else if (c == ']' && --depth == 0) {
- s = p;
- break;
- }
- }
- }
- }
- return (s);
-}
-
-/* Check if coded string s is a variable name */
-int
-is_wdvarname(const char *s, bool aok)
-{
- const char *p = skip_wdvarname(s, aok);
-
- return (p != s && p[0] == EOS);
-}
-
-/* Check if coded string s is a variable assignment */
-int
-is_wdvarassign(const char *s)
-{
- const char *p = skip_wdvarname(s, true);
-
- return (p != s && p[0] == CHAR &&
- (p[1] == '=' || (p[1] == '+' && p[2] == CHAR && p[3] == '=')));
-}
-
-/*
- * Make the exported environment from the exported names in the dictionary.
- */
-char **
-makenv(void)
-{
- ssize_t i;
- struct block *l;
- XPtrV denv;
- struct tbl *vp, **vpp;
-
- XPinit(denv, 64);
- for (l = e->loc; l != NULL; l = l->next) {
- vpp = l->vars.tbls;
- i = 1 << (l->vars.tshift);
- while (--i >= 0)
- if ((vp = *vpp++) != NULL &&
- (vp->flag&(ISSET|EXPORT)) == (ISSET|EXPORT)) {
- struct block *l2;
- struct tbl *vp2;
- uint32_t h = hash(vp->name);
-
- /* unexport any redefined instances */
- for (l2 = l->next; l2 != NULL; l2 = l2->next) {
- vp2 = ktsearch(&l2->vars, vp->name, h);
- if (vp2 != NULL)
- vp2->flag &= ~EXPORT;
- }
- if ((vp->flag&INTEGER)) {
- /* integer to string */
- char *val;
- val = str_val(vp);
- vp->flag &= ~(INTEGER|RDONLY|SPECIAL);
- /* setstr can't fail here */
- setstr(vp, val, KSH_RETURN_ERROR);
- }
- XPput(denv, vp->val.s);
- }
- }
- XPput(denv, NULL);
- return ((char **)XPclose(denv));
-}
-
-/*
- * handle special variables with side effects - PATH, SECONDS.
- */
-
-/* Test if name is a special parameter */
-static int
-special(const char *name)
-{
- struct tbl *tp;
-
- tp = ktsearch(&specials, name, hash(name));
- return (tp && (tp->flag & ISSET) ? tp->type : V_NONE);
-}
-
-/* Make a variable non-special */
-static void
-unspecial(const char *name)
-{
- struct tbl *tp;
-
- tp = ktsearch(&specials, name, hash(name));
- if (tp)
- ktdelete(tp);
-}
-
-static time_t seconds; /* time SECONDS last set */
-static int user_lineno; /* what user set $LINENO to */
-
-static void
-getspec(struct tbl *vp)
-{
- mksh_ari_u num;
- int st;
- struct timeval tv;
-
- switch ((st = special(vp->name))) {
- case V_COLUMNS:
- case V_LINES:
- /*
- * Do NOT export COLUMNS/LINES. Many applications
- * check COLUMNS/LINES before checking ws.ws_col/row,
- * so if the app is started with C/L in the environ
- * and the window is then resized, the app won't
- * see the change cause the environ doesn't change.
- */
- if (got_winch)
- change_winsz();
- break;
- }
- switch (st) {
- case V_BASHPID:
- num.u = (mksh_uari_t)procpid;
- break;
- case V_COLUMNS:
- num.i = x_cols;
- break;
- case V_HISTSIZE:
- num.i = histsize;
- break;
- case V_LINENO:
- num.i = current_lineno + user_lineno;
- break;
- case V_LINES:
- num.i = x_lins;
- break;
- case V_EPOCHREALTIME: {
- /* 10(%u) + 1(.) + 6 + NUL */
- char buf[18];
-
- vp->flag &= ~SPECIAL;
- mksh_TIME(tv);
- shf_snprintf(buf, sizeof(buf), "%u.%06u",
- (unsigned)tv.tv_sec, (unsigned)tv.tv_usec);
- setstr(vp, buf, KSH_RETURN_ERROR | 0x4);
- vp->flag |= SPECIAL;
- return;
- }
- case V_OPTIND:
- num.i = user_opt.uoptind;
- break;
- case V_RANDOM:
- num.i = rndget();
- break;
- case V_SECONDS:
- /*
- * On start up the value of SECONDS is used before
- * it has been set - don't do anything in this case
- * (see initcoms[] in main.c).
- */
- if (vp->flag & ISSET) {
- mksh_TIME(tv);
- num.i = tv.tv_sec - seconds;
- } else
- return;
- break;
- default:
- /* do nothing, do not touch vp at all */
- return;
- }
- vp->flag &= ~SPECIAL;
- setint_n(vp, num.i, 0);
- vp->flag |= SPECIAL;
-}
-
-static void
-setspec(struct tbl *vp)
-{
- mksh_ari_u num;
- char *s;
- int st;
-
- switch ((st = special(vp->name))) {
-#if HAVE_PERSISTENT_HISTORY
- case V_HISTFILE:
- sethistfile(str_val(vp));
- return;
-#endif
- case V_IFS:
- setctypes(s = str_val(vp), C_IFS);
- ifs0 = *s;
- return;
- case V_PATH:
- if (path)
- afree(path, APERM);
- s = str_val(vp);
- strdupx(path, s, APERM);
- /* clear tracked aliases */
- flushcom(true);
- return;
- case V_TMPDIR:
- if (tmpdir) {
- afree(tmpdir, APERM);
- tmpdir = NULL;
- }
- /*
- * Use tmpdir iff it is an absolute path, is writable
- * and searchable and is a directory...
- */
- {
- struct stat statb;
-
- s = str_val(vp);
- /* LINTED use of access */
- if (s[0] == '/' && access(s, W_OK|X_OK) == 0 &&
- stat(s, &statb) == 0 && S_ISDIR(statb.st_mode))
- strdupx(tmpdir, s, APERM);
- }
- return;
- /* common sub-cases */
- case V_COLUMNS:
- case V_LINES:
- if (vp->flag & IMPORT) {
- /* do not touch */
- unspecial(vp->name);
- vp->flag &= ~SPECIAL;
- return;
- }
- /* FALLTHROUGH */
- case V_HISTSIZE:
- case V_LINENO:
- case V_OPTIND:
- case V_RANDOM:
- case V_SECONDS:
- case V_TMOUT:
- vp->flag &= ~SPECIAL;
- if (getint(vp, &num, false) == -1) {
- s = str_val(vp);
- if (st != V_RANDOM)
- errorf("%s: %s: %s", vp->name, "bad number", s);
- num.u = hash(s);
- }
- vp->flag |= SPECIAL;
- break;
- default:
- /* do nothing, do not touch vp at all */
- return;
- }
-
- /* process the singular parts of the common cases */
-
- switch (st) {
- case V_COLUMNS:
- if (num.i >= MIN_COLS)
- x_cols = num.i;
- break;
- case V_HISTSIZE:
- sethistsize(num.i);
- break;
- case V_LINENO:
- /* The -1 is because line numbering starts at 1. */
- user_lineno = num.u - current_lineno - 1;
- break;
- case V_LINES:
- if (num.i >= MIN_LINS)
- x_lins = num.i;
- break;
- case V_OPTIND:
- getopts_reset((int)num.i);
- break;
- case V_RANDOM:
- /*
- * mksh R39d+ no longer has the traditional repeatability
- * of $RANDOM sequences, but always retains state
- */
- rndset((unsigned long)num.u);
- break;
- case V_SECONDS:
- {
- struct timeval tv;
-
- mksh_TIME(tv);
- seconds = tv.tv_sec - num.i;
- }
- break;
- case V_TMOUT:
- ksh_tmout = num.i >= 0 ? num.i : 0;
- break;
- }
-}
-
-static void
-unsetspec(struct tbl *vp)
-{
- /*
- * AT&T ksh man page says OPTIND, OPTARG and _ lose special
- * meaning, but OPTARG does not (still set by getopts) and _ is
- * also still set in various places. Don't know what AT&T does
- * for HISTSIZE, HISTFILE. Unsetting these in AT&T ksh does not
- * loose the 'specialness': IFS, COLUMNS, PATH, TMPDIR
- */
-
- switch (special(vp->name)) {
- case V_IFS:
- setctypes(TC_IFSWS, C_IFS);
- ifs0 = ' ';
- break;
- case V_PATH:
- if (path)
- afree(path, APERM);
- strdupx(path, def_path, APERM);
- /* clear tracked aliases */
- flushcom(true);
- break;
- case V_TMPDIR:
- /* should not become unspecial */
- if (tmpdir) {
- afree(tmpdir, APERM);
- tmpdir = NULL;
- }
- break;
- case V_LINENO:
- case V_RANDOM:
- case V_SECONDS:
- case V_TMOUT:
- /* AT&T ksh leaves previous value in place */
- unspecial(vp->name);
- break;
- }
-}
-
-/*
- * Search for (and possibly create) a table entry starting with
- * vp, indexed by val.
- */
-struct tbl *
-arraysearch(struct tbl *vp, uint32_t val)
-{
- struct tbl *prev, *curr, *news;
- size_t len;
-
- vp->flag = (vp->flag | (ARRAY|DEFINED)) & ~ASSOC;
- /* the table entry is always [0] */
- if (val == 0)
- return (vp);
- prev = vp;
- curr = vp->u.array;
- while (curr && curr->ua.index < val) {
- prev = curr;
- curr = curr->u.array;
- }
- if (curr && curr->ua.index == val) {
- if (curr->flag&ISSET)
- return (curr);
- news = curr;
- } else
- news = NULL;
- if (!news) {
- len = strlen(vp->name);
- checkoktoadd(len, 1 + offsetof(struct tbl, name[0]));
- news = alloc(offsetof(struct tbl, name[0]) + ++len, vp->areap);
- memcpy(news->name, vp->name, len);
- }
- news->flag = (vp->flag & ~(ALLOC|DEFINED|ISSET|SPECIAL)) | AINDEX;
- news->type = vp->type;
- news->areap = vp->areap;
- news->u2.field = vp->u2.field;
- news->ua.index = val;
-
- if (curr != news) {
- /* not reusing old array entry */
- prev->u.array = news;
- news->u.array = curr;
- }
- return (news);
-}
-
-/*
- * Return the length of an array reference (eg, [1+2]) - cp is assumed
- * to point to the open bracket. Returns 0 if there is no matching
- * closing bracket.
- */
-size_t
-array_ref_len(const char *cp)
-{
- const char *s = cp;
- char c;
- int depth = 0;
-
- while ((c = *s++) && (c != ']' || --depth))
- if (c == '[')
- depth++;
- if (!c)
- return (0);
- return (s - cp);
-}
-
-/*
- * Make a copy of the base of an array name
- */
-char *
-arrayname(const char *str)
-{
- const char *p;
- char *rv;
-
- if ((p = cstrchr(str, '[')) == 0)
- /* Shouldn't happen, but why worry? */
- strdupx(rv, str, ATEMP);
- else
- strndupx(rv, str, p - str, ATEMP);
-
- return (rv);
-}
-
-/* set (or overwrite, if reset) the array variable var to the values in vals */
-mksh_uari_t
-set_array(const char *var, bool reset, const char **vals)
-{
- struct tbl *vp, *vq;
- mksh_uari_t i = 0, j = 0;
- const char *ccp = var;
- char *cp = NULL;
- size_t n;
-
- /* to get local array, use "local foo; set -A foo" */
- n = strlen(var);
- if (n > 0 && var[n - 1] == '+') {
- /* append mode */
- reset = false;
- strndupx(cp, var, n - 1, ATEMP);
- ccp = cp;
- }
- vp = global(ccp);
-
- /* Note: AT&T ksh allows set -A but not set +A of a read-only var */
- if ((vp->flag&RDONLY))
- errorfx(2, "read-only: %s", ccp);
- /* This code is quite non-optimal */
- if (reset) {
- /* trash existing values and attributes */
- unset(vp, 1);
- /* allocate-by-access the [0] element to keep in scope */
- arraysearch(vp, 0);
- }
- /*
- * TODO: would be nice for assignment to completely succeed or
- * completely fail. Only really effects integer arrays:
- * evaluation of some of vals[] may fail...
- */
- if (cp != NULL) {
- /* find out where to set when appending */
- for (vq = vp; vq; vq = vq->u.array) {
- if (!(vq->flag & ISSET))
- continue;
- if (arrayindex(vq) >= j)
- j = arrayindex(vq) + 1;
- }
- afree(cp, ATEMP);
- }
- while ((ccp = vals[i])) {
- if (*ccp == '[') {
- int level = 0;
-
- while (*ccp) {
- if (*ccp == ']' && --level == 0)
- break;
- if (*ccp == '[')
- ++level;
- ++ccp;
- }
- if (*ccp == ']' && level == 0 && ccp[1] == '=') {
- strndupx(cp, vals[i] + 1, ccp - (vals[i] + 1),
- ATEMP);
- evaluate(substitute(cp, 0), (mksh_ari_t *)&j,
- KSH_UNWIND_ERROR, true);
- afree(cp, ATEMP);
- ccp += 2;
- } else
- ccp = vals[i];
- }
-
- vq = arraysearch(vp, j);
- /* would be nice to deal with errors here... (see above) */
- setstr(vq, ccp, KSH_RETURN_ERROR);
- i++;
- j++;
- }
-
- return (i);
-}
-
-void
-change_winsz(void)
-{
-#ifdef TIOCGWINSZ
- /* check if window size has changed */
- if (tty_init_fd() < 2) {
- struct winsize ws;
-
- if (ioctl(tty_fd, TIOCGWINSZ, &ws) >= 0) {
- if (ws.ws_col)
- x_cols = ws.ws_col;
- if (ws.ws_row)
- x_lins = ws.ws_row;
- }
- }
-#endif
-
- /* bounds check for sane values, use defaults otherwise */
- if (x_cols < MIN_COLS)
- x_cols = 80;
- if (x_lins < MIN_LINS)
- x_lins = 24;
-
-#ifdef SIGWINCH
- got_winch = 0;
-#endif
-}
-
-uint32_t
-hash(const void *s)
-{
- register uint32_t h;
-
- NZATInit(h);
- NZATUpdateString(h, s);
- NZAATFinish(h);
- return (h);
-}
-
-mksh_ari_t
-rndget(void)
-{
- /*
- * this is the same Linear Congruential PRNG as Borland
- * C/C++ allegedly uses in its built-in rand() function
- */
- return (((lcg_state = 22695477 * lcg_state + 1) >> 16) & 0x7FFF);
-}
-
-void
-rndset(unsigned long v)
-{
- register uint32_t h;
-
- NZATInit(h);
- NZATUpdateMem(h, &lcg_state, sizeof(lcg_state));
- NZATUpdateMem(h, &v, sizeof(v));
-
-#if defined(arc4random_pushb_fast) || defined(MKSH_A4PB)
- /*
- * either we have very chap entropy get and push available,
- * with malloc() pulling in this code already anyway, or the
- * user requested us to use the old functions
- */
- lcg_state = h;
- NZAATFinish(lcg_state);
-#if defined(arc4random_pushb_fast)
- arc4random_pushb_fast(&lcg_state, sizeof(lcg_state));
- lcg_state = arc4random();
-#else
- lcg_state = arc4random_pushb(&lcg_state, sizeof(lcg_state));
-#endif
- NZATUpdateMem(h, &lcg_state, sizeof(lcg_state));
-#endif
-
- NZAATFinish(h);
- lcg_state = h;
-}
Copied: vendor/MirOS/mksh/R50/var.c (from rev 6707, vendor/MirOS/mksh/dist/var.c)
===================================================================
--- vendor/MirOS/mksh/R50/var.c (rev 0)
+++ vendor/MirOS/mksh/R50/var.c 2014-07-01 12:01:17 UTC (rev 6708)
@@ -0,0 +1,1670 @@
+/* $OpenBSD: var.c,v 1.38 2013/12/20 17:53:09 zhuk Exp $ */
+
+/*-
+ * Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ * 2011, 2012, 2013, 2014
+ * Thorsten Glaser <tg at mirbsd.org>
+ *
+ * Provided that these terms and disclaimer and all copyright notices
+ * are retained or reproduced in an accompanying document, permission
+ * is granted to deal in this work without restriction, including un-
+ * limited rights to use, publicly perform, distribute, sell, modify,
+ * merge, give away, or sublicence.
+ *
+ * This work is provided "AS IS" and WITHOUT WARRANTY of any kind, to
+ * the utmost extent permitted by applicable law, neither express nor
+ * implied; without malicious intent or gross negligence. In no event
+ * may a licensor, author or contributor be held liable for indirect,
+ * direct, other damage, loss, or other issues arising in any way out
+ * of dealing in the work, even if advised of the possibility of such
+ * damage or existence of a defect, except proven that it results out
+ * of said person's immediate fault when using the work as intended.
+ */
+
+#include "sh.h"
+#include "mirhash.h"
+
+#if defined(__OpenBSD__)
+#include <sys/sysctl.h>
+#endif
+
+__RCSID("$MirOS: src/bin/mksh/var.c,v 1.180 2014/06/26 20:36:02 tg Exp $");
+
+/*-
+ * Variables
+ *
+ * WARNING: unreadable code, needs a rewrite
+ *
+ * if (flag&INTEGER), val.i contains integer value, and type contains base.
+ * otherwise, (val.s + type) contains string value.
+ * if (flag&EXPORT), val.s contains "name=value" for E-Z exporting.
+ */
+
+static struct table specials;
+static uint32_t lcg_state = 5381, qh_state = 4711;
+/* may only be set by typeset() just before call to array_index_calc() */
+static enum namerefflag innermost_refflag = SRF_NOP;
+
+static char *formatstr(struct tbl *, const char *);
+static void exportprep(struct tbl *, const char *);
+static int special(const char *);
+static void unspecial(const char *);
+static void getspec(struct tbl *);
+static void setspec(struct tbl *);
+static void unsetspec(struct tbl *);
+static int getint(struct tbl *, mksh_ari_u *, bool);
+static const char *array_index_calc(const char *, bool *, uint32_t *);
+
+/*
+ * create a new block for function calls and simple commands
+ * assume caller has allocated and set up e->loc
+ */
+void
+newblock(void)
+{
+ struct block *l;
+ static const char *empty[] = { null };
+
+ l = alloc(sizeof(struct block), ATEMP);
+ l->flags = 0;
+ /* TODO: could use e->area (l->area => l->areap) */
+ ainit(&l->area);
+ if (!e->loc) {
+ l->argc = 0;
+ l->argv = empty;
+ } else {
+ l->argc = e->loc->argc;
+ l->argv = e->loc->argv;
+ }
+ l->exit = l->error = NULL;
+ ktinit(&l->area, &l->vars, 0);
+ ktinit(&l->area, &l->funs, 0);
+ l->next = e->loc;
+ e->loc = l;
+}
+
+/*
+ * pop a block handling special variables
+ */
+void
+popblock(void)
+{
+ ssize_t i;
+ struct block *l = e->loc;
+ struct tbl *vp, **vpp = l->vars.tbls, *vq;
+
+ /* pop block */
+ e->loc = l->next;
+
+ i = 1 << (l->vars.tshift);
+ while (--i >= 0)
+ if ((vp = *vpp++) != NULL && (vp->flag&SPECIAL)) {
+ if ((vq = global(vp->name))->flag & ISSET)
+ setspec(vq);
+ else
+ unsetspec(vq);
+ }
+ if (l->flags & BF_DOGETOPTS)
+ user_opt = l->getopts_state;
+ afreeall(&l->area);
+ afree(l, ATEMP);
+}
+
+/* called by main() to initialise variable data structures */
+#define VARSPEC_DEFNS
+#include "var_spec.h"
+
+enum var_specs {
+#define VARSPEC_ENUMS
+#include "var_spec.h"
+ V_MAX
+};
+
+/* this is biased with -1 relative to VARSPEC_ENUMS */
+static const char * const initvar_names[] = {
+#define VARSPEC_ITEMS
+#include "var_spec.h"
+};
+
+void
+initvar(void)
+{
+ int i = 0;
+ struct tbl *tp;
+
+ ktinit(APERM, &specials,
+ /* currently 14 specials: 75% of 32 = 2^5 */
+ 5);
+ while (i < V_MAX - 1) {
+ tp = ktenter(&specials, initvar_names[i],
+ hash(initvar_names[i]));
+ tp->flag = DEFINED|ISSET;
+ tp->type = ++i;
+ }
+}
+
+/* common code for several functions below and c_typeset() */
+struct block *
+varsearch(struct block *l, struct tbl **vpp, const char *vn, uint32_t h)
+{
+ register struct tbl *vp;
+
+ if (l) {
+ varsearch_loop:
+ if ((vp = ktsearch(&l->vars, vn, h)) != NULL)
+ goto varsearch_out;
+ if (l->next != NULL) {
+ l = l->next;
+ goto varsearch_loop;
+ }
+ }
+ vp = NULL;
+ varsearch_out:
+ *vpp = vp;
+ return (l);
+}
+
+/*
+ * Used to calculate an array index for global()/local(). Sets *arrayp
+ * to true if this is an array, sets *valp to the array index, returns
+ * the basename of the array. May only be called from global()/local()
+ * and must be their first callee.
+ */
+static const char *
+array_index_calc(const char *n, bool *arrayp, uint32_t *valp)
+{
+ const char *p;
+ size_t len;
+ char *ap = NULL;
+
+ *arrayp = false;
+ redo_from_ref:
+ p = skip_varname(n, false);
+ if (innermost_refflag == SRF_NOP && (p != n) && ksh_isalphx(n[0])) {
+ struct tbl *vp;
+ char *vn;
+
+ strndupx(vn, n, p - n, ATEMP);
+ /* check if this is a reference */
+ varsearch(e->loc, &vp, vn, hash(vn));
+ afree(vn, ATEMP);
+ if (vp && (vp->flag & (DEFINED | ASSOC | ARRAY)) ==
+ (DEFINED | ASSOC)) {
+ char *cp;
+
+ /* gotcha! */
+ cp = shf_smprintf("%s%s", str_val(vp), p);
+ afree(ap, ATEMP);
+ n = ap = cp;
+ goto redo_from_ref;
+ }
+ }
+ innermost_refflag = SRF_NOP;
+
+ if (p != n && *p == '[' && (len = array_ref_len(p))) {
+ char *sub, *tmp;
+ mksh_ari_t rval;
+
+ /* calculate the value of the subscript */
+ *arrayp = true;
+ strndupx(tmp, p + 1, len - 2, ATEMP);
+ sub = substitute(tmp, 0);
+ afree(tmp, ATEMP);
+ strndupx(n, n, p - n, ATEMP);
+ evaluate(sub, &rval, KSH_UNWIND_ERROR, true);
+ *valp = (uint32_t)rval;
+ afree(sub, ATEMP);
+ }
+ return (n);
+}
+
+/*
+ * Search for variable, if not found create globally.
+ */
+struct tbl *
+global(const char *n)
+{
+ struct block *l = e->loc;
+ struct tbl *vp;
+ int c;
+ bool array;
+ uint32_t h, val;
+
+ /*
+ * check to see if this is an array;
+ * dereference namerefs; must come first
+ */
+ n = array_index_calc(n, &array, &val);
+ h = hash(n);
+ c = (unsigned char)n[0];
+ if (!ksh_isalphx(c)) {
+ if (array)
+ errorf("bad substitution");
+ vp = &vtemp;
+ vp->flag = DEFINED;
+ vp->type = 0;
+ vp->areap = ATEMP;
+ *vp->name = c;
+ if (ksh_isdigit(c)) {
+ if (getn(n, &c) && (c <= l->argc))
+ /* setstr can't fail here */
+ setstr(vp, l->argv[c], KSH_RETURN_ERROR);
+ vp->flag |= RDONLY;
+ return (vp);
+ }
+ vp->flag |= RDONLY;
+ if (n[1] != '\0')
+ return (vp);
+ vp->flag |= ISSET|INTEGER;
+ switch (c) {
+ case '$':
+ vp->val.i = kshpid;
+ break;
+ case '!':
+ /* if no job, expand to nothing */
+ if ((vp->val.i = j_async()) == 0)
+ vp->flag &= ~(ISSET|INTEGER);
+ break;
+ case '?':
+ vp->val.i = exstat & 0xFF;
+ break;
+ case '#':
+ vp->val.i = l->argc;
+ break;
+ case '-':
+ vp->flag &= ~INTEGER;
+ vp->val.s = getoptions();
+ break;
+ default:
+ vp->flag &= ~(ISSET|INTEGER);
+ }
+ return (vp);
+ }
+ l = varsearch(e->loc, &vp, n, h);
+ if (vp != NULL)
+ return (array ? arraysearch(vp, val) : vp);
+ vp = ktenter(&l->vars, n, h);
+ if (array)
+ vp = arraysearch(vp, val);
+ vp->flag |= DEFINED;
+ if (special(n))
+ vp->flag |= SPECIAL;
+ return (vp);
+}
+
+/*
+ * Search for local variable, if not found create locally.
+ */
+struct tbl *
+local(const char *n, bool copy)
+{
+ struct block *l = e->loc;
+ struct tbl *vp;
+ bool array;
+ uint32_t h, val;
+
+ /*
+ * check to see if this is an array;
+ * dereference namerefs; must come first
+ */
+ n = array_index_calc(n, &array, &val);
+ mkssert(n != NULL);
+ h = hash(n);
+ if (!ksh_isalphx(*n)) {
+ vp = &vtemp;
+ vp->flag = DEFINED|RDONLY;
+ vp->type = 0;
+ vp->areap = ATEMP;
+ return (vp);
+ }
+ vp = ktenter(&l->vars, n, h);
+ if (copy && !(vp->flag & DEFINED)) {
+ struct tbl *vq;
+
+ varsearch(l->next, &vq, n, h);
+ if (vq != NULL) {
+ vp->flag |= vq->flag &
+ (EXPORT | INTEGER | RDONLY | LJUST | RJUST |
+ ZEROFIL | LCASEV | UCASEV_AL | INT_U | INT_L);
+ if (vq->flag & INTEGER)
+ vp->type = vq->type;
+ vp->u2.field = vq->u2.field;
+ }
+ }
+ if (array)
+ vp = arraysearch(vp, val);
+ vp->flag |= DEFINED;
+ if (special(n))
+ vp->flag |= SPECIAL;
+ return (vp);
+}
+
+/* get variable string value */
+char *
+str_val(struct tbl *vp)
+{
+ char *s;
+
+ if ((vp->flag&SPECIAL))
+ getspec(vp);
+ if (!(vp->flag&ISSET))
+ /* special to dollar() */
+ s = null;
+ else if (!(vp->flag&INTEGER))
+ /* string source */
+ s = vp->val.s + vp->type;
+ else {
+ /* integer source */
+ mksh_uari_t n;
+ unsigned int base;
+ /**
+ * worst case number length is when base == 2:
+ * 1 (minus) + 2 (base, up to 36) + 1 ('#') +
+ * number of bits in the mksh_uari_t + 1 (NUL)
+ */
+ char strbuf[1 + 2 + 1 + 8 * sizeof(mksh_uari_t) + 1];
+ const char *digits = (vp->flag & UCASEV_AL) ?
+ digits_uc : digits_lc;
+
+ s = strbuf + sizeof(strbuf);
+ if (vp->flag & INT_U)
+ n = vp->val.u;
+ else
+ n = (vp->val.i < 0) ? -vp->val.u : vp->val.u;
+ base = (vp->type == 0) ? 10U : (unsigned int)vp->type;
+
+ if (base == 1 && n == 0)
+ base = 2;
+ if (base == 1) {
+ size_t sz = 1;
+
+ *(s = strbuf) = '1';
+ s[1] = '#';
+ if (!UTFMODE || ((n & 0xFF80) == 0xEF80))
+ /* OPTU-16 -> raw octet */
+ s[2] = n & 0xFF;
+ else
+ sz = utf_wctomb(s + 2, n);
+ s[2 + sz] = '\0';
+ } else {
+ *--s = '\0';
+ do {
+ *--s = digits[n % base];
+ n /= base;
+ } while (n != 0);
+ if (base != 10) {
+ *--s = '#';
+ *--s = digits[base % 10];
+ if (base >= 10)
+ *--s = digits[base / 10];
+ }
+ if (!(vp->flag & INT_U) && vp->val.i < 0)
+ *--s = '-';
+ }
+ if (vp->flag & (RJUST|LJUST))
+ /* case already dealt with */
+ s = formatstr(vp, s);
+ else
+ strdupx(s, s, ATEMP);
+ }
+ return (s);
+}
+
+/* set variable to string value */
+int
+setstr(struct tbl *vq, const char *s, int error_ok)
+{
+ char *salloc = NULL;
+ bool no_ro_check = tobool(error_ok & 0x4);
+
+ error_ok &= ~0x4;
+ if ((vq->flag & RDONLY) && !no_ro_check) {
+ warningf(true, "read-only: %s", vq->name);
+ if (!error_ok)
+ errorfxz(2);
+ return (0);
+ }
+ if (!(vq->flag&INTEGER)) {
+ /* string dest */
+ if ((vq->flag&ALLOC)) {
+#ifndef MKSH_SMALL
+ /* debugging */
+ if (s >= vq->val.s &&
+ s <= vq->val.s + strlen(vq->val.s)) {
+ internal_errorf(
+ "setstr: %s=%s: assigning to self",
+ vq->name, s);
+ }
+#endif
+ afree(vq->val.s, vq->areap);
+ }
+ vq->flag &= ~(ISSET|ALLOC);
+ vq->type = 0;
+ if (s && (vq->flag & (UCASEV_AL|LCASEV|LJUST|RJUST)))
+ s = salloc = formatstr(vq, s);
+ if ((vq->flag&EXPORT))
+ exportprep(vq, s);
+ else {
+ strdupx(vq->val.s, s, vq->areap);
+ vq->flag |= ALLOC;
+ }
+ } else {
+ /* integer dest */
+ if (!v_evaluate(vq, s, error_ok, true))
+ return (0);
+ }
+ vq->flag |= ISSET;
+ if ((vq->flag&SPECIAL))
+ setspec(vq);
+ afree(salloc, ATEMP);
+ return (1);
+}
+
+/* set variable to integer */
+void
+setint(struct tbl *vq, mksh_ari_t n)
+{
+ if (!(vq->flag&INTEGER)) {
+ struct tbl *vp = &vtemp;
+ vp->flag = (ISSET|INTEGER);
+ vp->type = 0;
+ vp->areap = ATEMP;
+ vp->val.i = n;
+ /* setstr can't fail here */
+ setstr(vq, str_val(vp), KSH_RETURN_ERROR);
+ } else
+ vq->val.i = n;
+ vq->flag |= ISSET;
+ if ((vq->flag&SPECIAL))
+ setspec(vq);
+}
+
+static int
+getint(struct tbl *vp, mksh_ari_u *nump, bool arith)
+{
+ mksh_uari_t c, num, base;
+ const char *s;
+ bool have_base = false, neg = false;
+
+ if (vp->flag&SPECIAL)
+ getspec(vp);
+ /* XXX is it possible for ISSET to be set and val.s to be NULL? */
+ if (!(vp->flag&ISSET) || (!(vp->flag&INTEGER) && vp->val.s == NULL))
+ return (-1);
+ if (vp->flag&INTEGER) {
+ nump->i = vp->val.i;
+ return (vp->type);
+ }
+ s = vp->val.s + vp->type;
+ base = 10;
+ num = 0;
+ if (arith && s[0] == '0' && (s[1] | 0x20) == 'x') {
+ s += 2;
+ base = 16;
+ have_base = true;
+ }
+ if (Flag(FPOSIX) && arith && s[0] == '0' && ksh_isdigit(s[1]) &&
+ !(vp->flag & ZEROFIL)) {
+ /* interpret as octal (deprecated) */
+ base = 8;
+ have_base = true;
+ }
+ while ((c = (unsigned char)*s++)) {
+ if (c == '-') {
+ neg = true;
+ continue;
+ } else if (c == '#') {
+ if (have_base || num < 1 || num > 36)
+ return (-1);
+ if ((base = num) == 1) {
+ unsigned int wc;
+
+ if (!UTFMODE)
+ wc = *(const unsigned char *)s;
+ else if (utf_mbtowc(&wc, s) == (size_t)-1)
+ /* OPTU-8 -> OPTU-16 */
+ /*
+ * (with a twist: 1#\uEF80 converts
+ * the same as 1#\x80 does, thus is
+ * not round-tripping correctly XXX)
+ */
+ wc = 0xEF00 + *(const unsigned char *)s;
+ nump->u = (mksh_uari_t)wc;
+ return (1);
+ }
+ num = 0;
+ have_base = true;
+ continue;
+ } else if (ksh_isdigit(c))
+ c -= '0';
+ else if (ksh_islower(c))
+ c -= 'a' - 10;
+ else if (ksh_isupper(c))
+ c -= 'A' - 10;
+ else
+ return (-1);
+ if (c >= base)
+ return (-1);
+ num = num * base + c;
+ }
+ if (neg)
+ num = -num;
+ nump->u = num;
+ return (base);
+}
+
+/*
+ * convert variable vq to integer variable, setting its value from vp
+ * (vq and vp may be the same)
+ */
+struct tbl *
+setint_v(struct tbl *vq, struct tbl *vp, bool arith)
+{
+ int base;
+ mksh_ari_u num;
+
+ if ((base = getint(vp, &num, arith)) == -1)
+ return (NULL);
+ setint_n(vq, num.i, 0);
+ if (vq->type == 0)
+ /* default base */
+ vq->type = base;
+ return (vq);
+}
+
+/* convert variable vq to integer variable, setting its value to num */
+void
+setint_n(struct tbl *vq, mksh_ari_t num, int newbase)
+{
+ if (!(vq->flag & INTEGER) && (vq->flag & ALLOC)) {
+ vq->flag &= ~ALLOC;
+ vq->type = 0;
+ afree(vq->val.s, vq->areap);
+ }
+ vq->val.i = num;
+ if (newbase != 0)
+ vq->type = newbase;
+ vq->flag |= ISSET|INTEGER;
+ if (vq->flag&SPECIAL)
+ setspec(vq);
+}
+
+static char *
+formatstr(struct tbl *vp, const char *s)
+{
+ int olen, nlen;
+ char *p, *q;
+ size_t psiz;
+
+ olen = (int)utf_mbswidth(s);
+
+ if (vp->flag & (RJUST|LJUST)) {
+ if (!vp->u2.field)
+ /* default field width */
+ vp->u2.field = olen;
+ nlen = vp->u2.field;
+ } else
+ nlen = olen;
+
+ p = alloc((psiz = nlen * /* MB_LEN_MAX */ 3 + 1), ATEMP);
+ if (vp->flag & (RJUST|LJUST)) {
+ int slen = olen, i = 0;
+
+ if (vp->flag & RJUST) {
+ const char *qq = s;
+ int n = 0;
+
+ while (i < slen)
+ i += utf_widthadj(qq, &qq);
+ /* strip trailing spaces (AT&T uses qq[-1] == ' ') */
+ while (qq > s && ksh_isspace(qq[-1])) {
+ --qq;
+ --slen;
+ }
+ if (vp->flag & ZEROFIL && vp->flag & INTEGER) {
+ if (!s[0] || !s[1])
+ goto uhm_no;
+ if (s[1] == '#')
+ n = 2;
+ else if (s[2] == '#')
+ n = 3;
+ uhm_no:
+ if (vp->u2.field <= n)
+ n = 0;
+ }
+ if (n) {
+ memcpy(p, s, n);
+ s += n;
+ }
+ while (slen > vp->u2.field)
+ slen -= utf_widthadj(s, &s);
+ if (vp->u2.field - slen)
+ memset(p + n, (vp->flag & ZEROFIL) ? '0' : ' ',
+ vp->u2.field - slen);
+ slen -= n;
+ shf_snprintf(p + vp->u2.field - slen,
+ psiz - (vp->u2.field - slen),
+ "%.*s", slen, s);
+ } else {
+ /* strip leading spaces/zeros */
+ while (ksh_isspace(*s))
+ s++;
+ if (vp->flag & ZEROFIL)
+ while (*s == '0')
+ s++;
+ shf_snprintf(p, nlen + 1, "%-*.*s",
+ vp->u2.field, vp->u2.field, s);
+ }
+ } else
+ memcpy(p, s, strlen(s) + 1);
+
+ if (vp->flag & UCASEV_AL) {
+ for (q = p; *q; q++)
+ *q = ksh_toupper(*q);
+ } else if (vp->flag & LCASEV) {
+ for (q = p; *q; q++)
+ *q = ksh_tolower(*q);
+ }
+
+ return (p);
+}
+
+/*
+ * make vp->val.s be "name=value" for quick exporting.
+ */
+static void
+exportprep(struct tbl *vp, const char *val)
+{
+ char *xp;
+ char *op = (vp->flag&ALLOC) ? vp->val.s : NULL;
+ size_t namelen, vallen;
+
+ mkssert(val != NULL);
+
+ namelen = strlen(vp->name);
+ vallen = strlen(val) + 1;
+
+ vp->flag |= ALLOC;
+ /* since name+val are both in memory this can go unchecked */
+ xp = alloc(namelen + 1 + vallen, vp->areap);
+ memcpy(vp->val.s = xp, vp->name, namelen);
+ xp += namelen;
+ *xp++ = '=';
+ /* offset to value */
+ vp->type = xp - vp->val.s;
+ memcpy(xp, val, vallen);
+ if (op != NULL)
+ afree(op, vp->areap);
+}
+
+/*
+ * lookup variable (according to (set&LOCAL)), set its attributes
+ * (INTEGER, RDONLY, EXPORT, TRACE, LJUST, RJUST, ZEROFIL, LCASEV,
+ * UCASEV_AL), and optionally set its value if an assignment.
+ */
+struct tbl *
+typeset(const char *var, uint32_t set, uint32_t clr, int field, int base)
+{
+ struct tbl *vp;
+ struct tbl *vpbase, *t;
+ char *tvar;
+ const char *val;
+ size_t len;
+ bool vappend = false;
+ enum namerefflag new_refflag = SRF_NOP;
+
+ if ((set & (ARRAY | ASSOC)) == ASSOC) {
+ new_refflag = SRF_ENABLE;
+ set &= ~(ARRAY | ASSOC);
+ }
+ if ((clr & (ARRAY | ASSOC)) == ASSOC) {
+ new_refflag = SRF_DISABLE;
+ clr &= ~(ARRAY | ASSOC);
+ }
+
+ /* check for valid variable name, search for value */
+ val = skip_varname(var, false);
+ if (val == var) {
+ /* no variable name given */
+ return (NULL);
+ }
+ if (*val == '[') {
+ if (new_refflag != SRF_NOP)
+ errorf("%s: %s", var,
+ "reference variable can't be an array");
+ len = array_ref_len(val);
+ if (len == 0)
+ return (NULL);
+ /*
+ * IMPORT is only used when the shell starts up and is
+ * setting up its environment. Allow only simple array
+ * references at this time since parameter/command
+ * substitution is performed on the [expression] which
+ * would be a major security hole.
+ */
+ if (set & IMPORT) {
+ size_t i;
+
+ for (i = 1; i < len - 1; i++)
+ if (!ksh_isdigit(val[i]))
+ return (NULL);
+ }
+ val += len;
+ }
+ if (val[0] == '=' || (val[0] == '+' && val[1] == '=')) {
+ strndupx(tvar, var, val - var, ATEMP);
+ if (*val++ == '+') {
+ ++val;
+ vappend = true;
+ }
+ } else if ((val[0] != '\0') || (set & IMPORT)) {
+ /*
+ * must have a = when setting a variable by importing
+ * the original environment, otherwise be empty; we
+ * also end up here when a variable name was invalid
+ */
+ return (NULL);
+ } else {
+ /* just varname with no value part nor equals sign */
+ strdupx(tvar, var, ATEMP);
+ val = NULL;
+ /* handle foo[*] => foo (whole array) mapping for R39b */
+ len = strlen(tvar);
+ if (len > 3 && tvar[len - 3] == '[' && tvar[len - 2] == '*' &&
+ tvar[len - 1] == ']')
+ tvar[len - 3] = '\0';
+ }
+
+ if (new_refflag == SRF_ENABLE) {
+ const char *qval, *ccp;
+
+ /* bail out on 'nameref foo+=bar' */
+ if (vappend)
+ errorf("appending not allowed for nameref");
+ /* find value if variable already exists */
+ if ((qval = val) == NULL) {
+ varsearch(e->loc, &vp, tvar, hash(tvar));
+ if (vp != NULL)
+ qval = str_val(vp);
+ }
+ /* check target value for being a valid variable name */
+ ccp = skip_varname(qval, false);
+ if (ccp == qval)
+ errorf("%s: %s", var, "empty nameref target");
+ len = (*ccp == '[') ? array_ref_len(ccp) : 0;
+ if (ccp[len]) {
+ /*
+ * works for cases "no array", "valid array with
+ * junk after it" and "invalid array"; in the
+ * latter case, len is also 0 and points to '['
+ */
+ errorf("%s: %s", qval,
+ "nameref target not a valid parameter name");
+ }
+ /* prevent nameref loops */
+ while (qval) {
+ if (!strcmp(qval, tvar))
+ errorf("%s: %s", qval,
+ "expression recurses on parameter");
+ varsearch(e->loc, &vp, qval, hash(qval));
+ qval = NULL;
+ if (vp && ((vp->flag & (ARRAY | ASSOC)) == ASSOC))
+ qval = str_val(vp);
+ }
+ }
+
+ /* prevent typeset from creating a local PATH/ENV/SHELL */
+ if (Flag(FRESTRICTED) && (strcmp(tvar, "PATH") == 0 ||
+ strcmp(tvar, "ENV") == 0 || strcmp(tvar, "SHELL") == 0))
+ errorf("%s: %s", tvar, "restricted");
+
+ innermost_refflag = new_refflag;
+ vp = (set & LOCAL) ? local(tvar, tobool(set & LOCAL_COPY)) :
+ global(tvar);
+ if (new_refflag == SRF_DISABLE && (vp->flag & (ARRAY|ASSOC)) == ASSOC)
+ vp->flag &= ~ASSOC;
+ else if (new_refflag == SRF_ENABLE) {
+ if (vp->flag & ARRAY) {
+ struct tbl *a, *tmp;
+
+ /* free up entire array */
+ for (a = vp->u.array; a; ) {
+ tmp = a;
+ a = a->u.array;
+ if (tmp->flag & ALLOC)
+ afree(tmp->val.s, tmp->areap);
+ afree(tmp, tmp->areap);
+ }
+ vp->u.array = NULL;
+ vp->flag &= ~ARRAY;
+ }
+ vp->flag |= ASSOC;
+ }
+
+ set &= ~(LOCAL|LOCAL_COPY);
+
+ vpbase = (vp->flag & ARRAY) ? global(arrayname(tvar)) : vp;
+
+ /*
+ * only allow export flag to be set; AT&T ksh allows any
+ * attribute to be changed which means it can be truncated or
+ * modified (-L/-R/-Z/-i)
+ */
+ if ((vpbase->flag & RDONLY) &&
+ (val || clr || (set & ~EXPORT)))
+ /* XXX check calls - is error here ok by POSIX? */
+ errorfx(2, "read-only: %s", tvar);
+ afree(tvar, ATEMP);
+
+ /* most calls are with set/clr == 0 */
+ if (set | clr) {
+ bool ok = true;
+
+ /*
+ * XXX if x[0] isn't set, there will be problems: need
+ * to have one copy of attributes for arrays...
+ */
+ for (t = vpbase; t; t = t->u.array) {
+ bool fake_assign;
+ char *s = NULL;
+ char *free_me = NULL;
+
+ fake_assign = (t->flag & ISSET) && (!val || t != vp) &&
+ ((set & (UCASEV_AL|LCASEV|LJUST|RJUST|ZEROFIL)) ||
+ ((t->flag & INTEGER) && (clr & INTEGER)) ||
+ (!(t->flag & INTEGER) && (set & INTEGER)));
+ if (fake_assign) {
+ if (t->flag & INTEGER) {
+ s = str_val(t);
+ free_me = NULL;
+ } else {
+ s = t->val.s + t->type;
+ free_me = (t->flag & ALLOC) ? t->val.s :
+ NULL;
+ }
+ t->flag &= ~ALLOC;
+ }
+ if (!(t->flag & INTEGER) && (set & INTEGER)) {
+ t->type = 0;
+ t->flag &= ~ALLOC;
+ }
+ t->flag = (t->flag | set) & ~clr;
+ /*
+ * Don't change base if assignment is to be
+ * done, in case assignment fails.
+ */
+ if ((set & INTEGER) && base > 0 && (!val || t != vp))
+ t->type = base;
+ if (set & (LJUST|RJUST|ZEROFIL))
+ t->u2.field = field;
+ if (fake_assign) {
+ if (!setstr(t, s, KSH_RETURN_ERROR)) {
+ /*
+ * Somewhat arbitrary action
+ * here: zap contents of
+ * variable, but keep the flag
+ * settings.
+ */
+ ok = false;
+ if (t->flag & INTEGER)
+ t->flag &= ~ISSET;
+ else {
+ if (t->flag & ALLOC)
+ afree(t->val.s, t->areap);
+ t->flag &= ~(ISSET|ALLOC);
+ t->type = 0;
+ }
+ }
+ if (free_me)
+ afree(free_me, t->areap);
+ }
+ }
+ if (!ok)
+ errorfz();
+ }
+
+ if (val != NULL) {
+ char *tval;
+
+ if (vappend) {
+ tval = shf_smprintf("%s%s", str_val(vp), val);
+ val = tval;
+ } else
+ tval = NULL;
+
+ if (vp->flag&INTEGER) {
+ /* do not zero base before assignment */
+ setstr(vp, val, KSH_UNWIND_ERROR | 0x4);
+ /* done after assignment to override default */
+ if (base > 0)
+ vp->type = base;
+ } else
+ /* setstr can't fail (readonly check already done) */
+ setstr(vp, val, KSH_RETURN_ERROR | 0x4);
+
+ if (tval != NULL)
+ afree(tval, ATEMP);
+ }
+
+ /* only x[0] is ever exported, so use vpbase */
+ if ((vpbase->flag&EXPORT) && !(vpbase->flag&INTEGER) &&
+ vpbase->type == 0)
+ exportprep(vpbase, (vpbase->flag&ISSET) ? vpbase->val.s : null);
+
+ return (vp);
+}
+
+/**
+ * Unset a variable. The flags can be:
+ * |1 = tear down entire array
+ * |2 = keep attributes, only unset content
+ */
+void
+unset(struct tbl *vp, int flags)
+{
+ if (vp->flag & ALLOC)
+ afree(vp->val.s, vp->areap);
+ if ((vp->flag & ARRAY) && (flags & 1)) {
+ struct tbl *a, *tmp;
+
+ /* free up entire array */
+ for (a = vp->u.array; a; ) {
+ tmp = a;
+ a = a->u.array;
+ if (tmp->flag & ALLOC)
+ afree(tmp->val.s, tmp->areap);
+ afree(tmp, tmp->areap);
+ }
+ vp->u.array = NULL;
+ }
+ if (flags & 2) {
+ vp->flag &= ~(ALLOC|ISSET);
+ return;
+ }
+ /* if foo[0] is being unset, the remainder of the array is kept... */
+ vp->flag &= SPECIAL | ((flags & 1) ? 0 : ARRAY|DEFINED);
+ if (vp->flag & SPECIAL)
+ /* responsible for 'unspecial'ing var */
+ unsetspec(vp);
+}
+
+/*
+ * Return a pointer to the first char past a legal variable name
+ * (returns the argument if there is no legal name, returns a pointer to
+ * the terminating NUL if whole string is legal).
+ */
+const char *
+skip_varname(const char *s, bool aok)
+{
+ size_t alen;
+
+ if (s && ksh_isalphx(*s)) {
+ while (*++s && ksh_isalnux(*s))
+ ;
+ if (aok && *s == '[' && (alen = array_ref_len(s)))
+ s += alen;
+ }
+ return (s);
+}
+
+/* Return a pointer to the first character past any legal variable name */
+const char *
+skip_wdvarname(const char *s,
+ /* skip array de-reference? */
+ bool aok)
+{
+ if (s[0] == CHAR && ksh_isalphx(s[1])) {
+ do {
+ s += 2;
+ } while (s[0] == CHAR && ksh_isalnux(s[1]));
+ if (aok && s[0] == CHAR && s[1] == '[') {
+ /* skip possible array de-reference */
+ const char *p = s;
+ char c;
+ int depth = 0;
+
+ while (/* CONSTCOND */ 1) {
+ if (p[0] != CHAR)
+ break;
+ c = p[1];
+ p += 2;
+ if (c == '[')
+ depth++;
+ else if (c == ']' && --depth == 0) {
+ s = p;
+ break;
+ }
+ }
+ }
+ }
+ return (s);
+}
+
+/* Check if coded string s is a variable name */
+int
+is_wdvarname(const char *s, bool aok)
+{
+ const char *p = skip_wdvarname(s, aok);
+
+ return (p != s && p[0] == EOS);
+}
+
+/* Check if coded string s is a variable assignment */
+int
+is_wdvarassign(const char *s)
+{
+ const char *p = skip_wdvarname(s, true);
+
+ return (p != s && p[0] == CHAR &&
+ (p[1] == '=' || (p[1] == '+' && p[2] == CHAR && p[3] == '=')));
+}
+
+/*
+ * Make the exported environment from the exported names in the dictionary.
+ */
+char **
+makenv(void)
+{
+ ssize_t i;
+ struct block *l;
+ XPtrV denv;
+ struct tbl *vp, **vpp;
+
+ XPinit(denv, 64);
+ for (l = e->loc; l != NULL; l = l->next) {
+ vpp = l->vars.tbls;
+ i = 1 << (l->vars.tshift);
+ while (--i >= 0)
+ if ((vp = *vpp++) != NULL &&
+ (vp->flag&(ISSET|EXPORT)) == (ISSET|EXPORT)) {
+ struct block *l2;
+ struct tbl *vp2;
+ uint32_t h = hash(vp->name);
+
+ /* unexport any redefined instances */
+ for (l2 = l->next; l2 != NULL; l2 = l2->next) {
+ vp2 = ktsearch(&l2->vars, vp->name, h);
+ if (vp2 != NULL)
+ vp2->flag &= ~EXPORT;
+ }
+ if ((vp->flag&INTEGER)) {
+ /* integer to string */
+ char *val;
+ val = str_val(vp);
+ vp->flag &= ~(INTEGER|RDONLY|SPECIAL);
+ /* setstr can't fail here */
+ setstr(vp, val, KSH_RETURN_ERROR);
+ }
+ XPput(denv, vp->val.s);
+ }
+ }
+ XPput(denv, NULL);
+ return ((char **)XPclose(denv));
+}
+
+/*
+ * handle special variables with side effects - PATH, SECONDS.
+ */
+
+/* Test if name is a special parameter */
+static int
+special(const char *name)
+{
+ struct tbl *tp;
+
+ tp = ktsearch(&specials, name, hash(name));
+ return (tp && (tp->flag & ISSET) ? tp->type : V_NONE);
+}
+
+/* Make a variable non-special */
+static void
+unspecial(const char *name)
+{
+ struct tbl *tp;
+
+ tp = ktsearch(&specials, name, hash(name));
+ if (tp)
+ ktdelete(tp);
+}
+
+static time_t seconds; /* time SECONDS last set */
+static int user_lineno; /* what user set $LINENO to */
+
+static void
+getspec(struct tbl *vp)
+{
+ mksh_ari_u num;
+ int st;
+ struct timeval tv;
+
+ switch ((st = special(vp->name))) {
+ case V_COLUMNS:
+ case V_LINES:
+ /*
+ * Do NOT export COLUMNS/LINES. Many applications
+ * check COLUMNS/LINES before checking ws.ws_col/row,
+ * so if the app is started with C/L in the environ
+ * and the window is then resized, the app won't
+ * see the change cause the environ doesn't change.
+ */
+ if (got_winch)
+ change_winsz();
+ break;
+ }
+ switch (st) {
+ case V_BASHPID:
+ num.u = (mksh_uari_t)procpid;
+ break;
+ case V_COLUMNS:
+ num.i = x_cols;
+ break;
+ case V_HISTSIZE:
+ num.i = histsize;
+ break;
+ case V_LINENO:
+ num.i = current_lineno + user_lineno;
+ break;
+ case V_LINES:
+ num.i = x_lins;
+ break;
+ case V_EPOCHREALTIME: {
+ /* 10(%u) + 1(.) + 6 + NUL */
+ char buf[18];
+
+ vp->flag &= ~SPECIAL;
+ mksh_TIME(tv);
+ shf_snprintf(buf, sizeof(buf), "%u.%06u",
+ (unsigned)tv.tv_sec, (unsigned)tv.tv_usec);
+ setstr(vp, buf, KSH_RETURN_ERROR | 0x4);
+ vp->flag |= SPECIAL;
+ return;
+ }
+ case V_OPTIND:
+ num.i = user_opt.uoptind;
+ break;
+ case V_RANDOM:
+ num.i = rndget();
+ break;
+ case V_SECONDS:
+ /*
+ * On start up the value of SECONDS is used before
+ * it has been set - don't do anything in this case
+ * (see initcoms[] in main.c).
+ */
+ if (vp->flag & ISSET) {
+ mksh_TIME(tv);
+ num.i = tv.tv_sec - seconds;
+ } else
+ return;
+ break;
+ default:
+ /* do nothing, do not touch vp at all */
+ return;
+ }
+ vp->flag &= ~SPECIAL;
+ setint_n(vp, num.i, 0);
+ vp->flag |= SPECIAL;
+}
+
+static void
+setspec(struct tbl *vp)
+{
+ mksh_ari_u num;
+ char *s;
+ int st;
+
+ switch ((st = special(vp->name))) {
+#if HAVE_PERSISTENT_HISTORY
+ case V_HISTFILE:
+ sethistfile(str_val(vp));
+ return;
+#endif
+ case V_IFS:
+ setctypes(s = str_val(vp), C_IFS);
+ ifs0 = *s;
+ return;
+ case V_PATH:
+ if (path)
+ afree(path, APERM);
+ s = str_val(vp);
+ strdupx(path, s, APERM);
+ /* clear tracked aliases */
+ flushcom(true);
+ return;
+ case V_TMPDIR:
+ if (tmpdir) {
+ afree(tmpdir, APERM);
+ tmpdir = NULL;
+ }
+ /*
+ * Use tmpdir iff it is an absolute path, is writable
+ * and searchable and is a directory...
+ */
+ {
+ struct stat statb;
+
+ s = str_val(vp);
+ /* LINTED use of access */
+ if (s[0] == '/' && access(s, W_OK|X_OK) == 0 &&
+ stat(s, &statb) == 0 && S_ISDIR(statb.st_mode))
+ strdupx(tmpdir, s, APERM);
+ }
+ return;
+ /* common sub-cases */
+ case V_COLUMNS:
+ case V_LINES:
+ if (vp->flag & IMPORT) {
+ /* do not touch */
+ unspecial(vp->name);
+ vp->flag &= ~SPECIAL;
+ return;
+ }
+ /* FALLTHROUGH */
+ case V_HISTSIZE:
+ case V_LINENO:
+ case V_OPTIND:
+ case V_RANDOM:
+ case V_SECONDS:
+ case V_TMOUT:
+ vp->flag &= ~SPECIAL;
+ if (getint(vp, &num, false) == -1) {
+ s = str_val(vp);
+ if (st != V_RANDOM)
+ errorf("%s: %s: %s", vp->name, "bad number", s);
+ num.u = hash(s);
+ }
+ vp->flag |= SPECIAL;
+ break;
+ default:
+ /* do nothing, do not touch vp at all */
+ return;
+ }
+
+ /* process the singular parts of the common cases */
+
+ switch (st) {
+ case V_COLUMNS:
+ if (num.i >= MIN_COLS)
+ x_cols = num.i;
+ break;
+ case V_HISTSIZE:
+ sethistsize(num.i);
+ break;
+ case V_LINENO:
+ /* The -1 is because line numbering starts at 1. */
+ user_lineno = num.u - current_lineno - 1;
+ break;
+ case V_LINES:
+ if (num.i >= MIN_LINS)
+ x_lins = num.i;
+ break;
+ case V_OPTIND:
+ getopts_reset((int)num.i);
+ break;
+ case V_RANDOM:
+ /*
+ * mksh R39d+ no longer has the traditional repeatability
+ * of $RANDOM sequences, but always retains state
+ */
+ rndset((unsigned long)num.u);
+ break;
+ case V_SECONDS:
+ {
+ struct timeval tv;
+
+ mksh_TIME(tv);
+ seconds = tv.tv_sec - num.i;
+ }
+ break;
+ case V_TMOUT:
+ ksh_tmout = num.i >= 0 ? num.i : 0;
+ break;
+ }
+}
+
+static void
+unsetspec(struct tbl *vp)
+{
+ /*
+ * AT&T ksh man page says OPTIND, OPTARG and _ lose special
+ * meaning, but OPTARG does not (still set by getopts) and _ is
+ * also still set in various places. Don't know what AT&T does
+ * for HISTSIZE, HISTFILE. Unsetting these in AT&T ksh does not
+ * loose the 'specialness': IFS, COLUMNS, PATH, TMPDIR
+ */
+
+ switch (special(vp->name)) {
+ case V_IFS:
+ setctypes(TC_IFSWS, C_IFS);
+ ifs0 = ' ';
+ break;
+ case V_PATH:
+ if (path)
+ afree(path, APERM);
+ strdupx(path, def_path, APERM);
+ /* clear tracked aliases */
+ flushcom(true);
+ break;
+ case V_TMPDIR:
+ /* should not become unspecial */
+ if (tmpdir) {
+ afree(tmpdir, APERM);
+ tmpdir = NULL;
+ }
+ break;
+ case V_LINENO:
+ case V_RANDOM:
+ case V_SECONDS:
+ case V_TMOUT:
+ /* AT&T ksh leaves previous value in place */
+ unspecial(vp->name);
+ break;
+ }
+}
+
+/*
+ * Search for (and possibly create) a table entry starting with
+ * vp, indexed by val.
+ */
+struct tbl *
+arraysearch(struct tbl *vp, uint32_t val)
+{
+ struct tbl *prev, *curr, *news;
+ size_t len;
+
+ vp->flag = (vp->flag | (ARRAY | DEFINED)) & ~ASSOC;
+ /* the table entry is always [0] */
+ if (val == 0)
+ return (vp);
+ prev = vp;
+ curr = vp->u.array;
+ while (curr && curr->ua.index < val) {
+ prev = curr;
+ curr = curr->u.array;
+ }
+ if (curr && curr->ua.index == val) {
+ if (curr->flag&ISSET)
+ return (curr);
+ news = curr;
+ } else
+ news = NULL;
+ if (!news) {
+ len = strlen(vp->name);
+ checkoktoadd(len, 1 + offsetof(struct tbl, name[0]));
+ news = alloc(offsetof(struct tbl, name[0]) + ++len, vp->areap);
+ memcpy(news->name, vp->name, len);
+ }
+ news->flag = (vp->flag & ~(ALLOC|DEFINED|ISSET|SPECIAL)) | AINDEX;
+ news->type = vp->type;
+ news->areap = vp->areap;
+ news->u2.field = vp->u2.field;
+ news->ua.index = val;
+
+ if (curr != news) {
+ /* not reusing old array entry */
+ prev->u.array = news;
+ news->u.array = curr;
+ }
+ return (news);
+}
+
+/*
+ * Return the length of an array reference (eg, [1+2]) - cp is assumed
+ * to point to the open bracket. Returns 0 if there is no matching
+ * closing bracket.
+ *
+ * XXX this should parse the actual arithmetic syntax
+ */
+size_t
+array_ref_len(const char *cp)
+{
+ const char *s = cp;
+ char c;
+ int depth = 0;
+
+ while ((c = *s++) && (c != ']' || --depth))
+ if (c == '[')
+ depth++;
+ if (!c)
+ return (0);
+ return (s - cp);
+}
+
+/*
+ * Make a copy of the base of an array name
+ */
+char *
+arrayname(const char *str)
+{
+ const char *p;
+ char *rv;
+
+ if ((p = cstrchr(str, '[')) == 0)
+ /* Shouldn't happen, but why worry? */
+ strdupx(rv, str, ATEMP);
+ else
+ strndupx(rv, str, p - str, ATEMP);
+
+ return (rv);
+}
+
+/* set (or overwrite, if reset) the array variable var to the values in vals */
+mksh_uari_t
+set_array(const char *var, bool reset, const char **vals)
+{
+ struct tbl *vp, *vq;
+ mksh_uari_t i = 0, j = 0;
+ const char *ccp = var;
+ char *cp = NULL;
+ size_t n;
+
+ /* to get local array, use "local foo; set -A foo" */
+ n = strlen(var);
+ if (n > 0 && var[n - 1] == '+') {
+ /* append mode */
+ reset = false;
+ strndupx(cp, var, n - 1, ATEMP);
+ ccp = cp;
+ }
+ vp = global(ccp);
+
+ /* Note: AT&T ksh allows set -A but not set +A of a read-only var */
+ if ((vp->flag&RDONLY))
+ errorfx(2, "read-only: %s", ccp);
+ /* This code is quite non-optimal */
+ if (reset) {
+ /* trash existing values and attributes */
+ unset(vp, 1);
+ /* allocate-by-access the [0] element to keep in scope */
+ arraysearch(vp, 0);
+ }
+ /*
+ * TODO: would be nice for assignment to completely succeed or
+ * completely fail. Only really effects integer arrays:
+ * evaluation of some of vals[] may fail...
+ */
+ if (cp != NULL) {
+ /* find out where to set when appending */
+ for (vq = vp; vq; vq = vq->u.array) {
+ if (!(vq->flag & ISSET))
+ continue;
+ if (arrayindex(vq) >= j)
+ j = arrayindex(vq) + 1;
+ }
+ afree(cp, ATEMP);
+ }
+ while ((ccp = vals[i])) {
+#if 0 /* temporarily taken out due to regression */
+ if (*ccp == '[') {
+ int level = 0;
+
+ while (*ccp) {
+ if (*ccp == ']' && --level == 0)
+ break;
+ if (*ccp == '[')
+ ++level;
+ ++ccp;
+ }
+ if (*ccp == ']' && level == 0 && ccp[1] == '=') {
+ strndupx(cp, vals[i] + 1, ccp - (vals[i] + 1),
+ ATEMP);
+ evaluate(substitute(cp, 0), (mksh_ari_t *)&j,
+ KSH_UNWIND_ERROR, true);
+ afree(cp, ATEMP);
+ ccp += 2;
+ } else
+ ccp = vals[i];
+ }
+#endif
+
+ vq = arraysearch(vp, j);
+ /* would be nice to deal with errors here... (see above) */
+ setstr(vq, ccp, KSH_RETURN_ERROR);
+ i++;
+ j++;
+ }
+
+ return (i);
+}
+
+void
+change_winsz(void)
+{
+ struct timeval tv;
+
+ mksh_TIME(tv);
+ BAFHUpdateMem_mem(qh_state, &tv, sizeof(tv));
+
+#ifdef TIOCGWINSZ
+ /* check if window size has changed */
+ if (tty_init_fd() < 2) {
+ struct winsize ws;
+
+ if (ioctl(tty_fd, TIOCGWINSZ, &ws) >= 0) {
+ if (ws.ws_col)
+ x_cols = ws.ws_col;
+ if (ws.ws_row)
+ x_lins = ws.ws_row;
+ }
+ }
+#endif
+
+ /* bounds check for sane values, use defaults otherwise */
+ if (x_cols < MIN_COLS)
+ x_cols = 80;
+ if (x_lins < MIN_LINS)
+ x_lins = 24;
+
+#ifdef SIGWINCH
+ got_winch = 0;
+#endif
+}
+
+uint32_t
+hash(const void *s)
+{
+ register uint32_t h;
+
+ BAFHInit(h);
+ BAFHUpdateStr_reg(h, s);
+ BAFHFinish_reg(h);
+ return (h);
+}
+
+uint32_t
+chvt_rndsetup(const void *bp, size_t sz)
+{
+ register uint32_t h;
+
+ /* use LCG as seed but try to get them to deviate immediately */
+ h = lcg_state;
+ (void)rndget();
+ BAFHFinish_reg(h);
+ /* variation through pid, ppid, and the works */
+ BAFHUpdateMem_reg(h, &rndsetupstate, sizeof(rndsetupstate));
+ /* some variation, some possibly entropy, depending on OE */
+ BAFHUpdateMem_reg(h, bp, sz);
+ /* mix them all up */
+ BAFHFinish_reg(h);
+
+ return (h);
+}
+
+mksh_ari_t
+rndget(void)
+{
+ /*
+ * this is the same Linear Congruential PRNG as Borland
+ * C/C++ allegedly uses in its built-in rand() function
+ */
+ return (((lcg_state = 22695477 * lcg_state + 1) >> 16) & 0x7FFF);
+}
+
+void
+rndset(unsigned long v)
+{
+ register uint32_t h;
+#if defined(arc4random_pushb_fast) || defined(MKSH_A4PB)
+ register uint32_t t;
+#endif
+ struct {
+ struct timeval tv;
+ void *sp;
+ uint32_t qh;
+ pid_t pp;
+ short r;
+ } z;
+
+#ifdef DEBUG
+ /* clear the allocated space, for valgrind */
+ memset(&z, 0, sizeof(z));
+#endif
+
+ h = lcg_state;
+ BAFHFinish_reg(h);
+ BAFHUpdateMem_reg(h, &v, sizeof(v));
+
+ mksh_TIME(z.tv);
+ z.sp = &lcg_state;
+ z.pp = procpid;
+ z.r = (short)rndget();
+
+#if defined(arc4random_pushb_fast) || defined(MKSH_A4PB)
+ t = qh_state;
+ BAFHFinish_reg(t);
+ z.qh = (t & 0xFFFF8000) | rndget();
+ lcg_state = (t << 15) | rndget();
+ /*
+ * either we have very chap entropy get and push available,
+ * with malloc() pulling in this code already anyway, or the
+ * user requested us to use the old functions
+ */
+ t = h;
+ BAFHUpdateMem_reg(t, &lcg_state, sizeof(lcg_state));
+ BAFHFinish_reg(t);
+ lcg_state = t;
+#if defined(arc4random_pushb_fast)
+ arc4random_pushb_fast(&lcg_state, sizeof(lcg_state));
+ lcg_state = arc4random();
+#else
+ lcg_state = arc4random_pushb(&lcg_state, sizeof(lcg_state));
+#endif
+ BAFHUpdateMem_reg(h, &lcg_state, sizeof(lcg_state));
+#else
+ z.qh = qh_state;
+#endif
+
+ BAFHUpdateMem_reg(h, &z, sizeof(z));
+ BAFHFinish_reg(h);
+ lcg_state = h;
+}
+
+void
+rndpush(const void *s)
+{
+ register uint32_t h = qh_state;
+
+ BAFHUpdateStr_reg(h, s);
+ BAFHUpdateOctet_reg(h, 0);
+ qh_state = h;
+}
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