[Midnightbsd-cvs] src [7653] trunk/lib/libmport: add mkdir code

[laffer1 at midnightbsd.org]

Revision: 7653
          http://svnweb.midnightbsd.org/src/?rev=7653
Author:   laffer1
Date:     2016-08-05 18:53:53 -0400 (Fri, 05 Aug 2016)
Log Message:
-----------
add mkdir code

Modified Paths:
--------------
    trunk/lib/libmport/Makefile

Added Paths:
-----------
    trunk/lib/libmport/mkdir.c

Modified: trunk/lib/libmport/Makefile
===================================================================
--- trunk/lib/libmport/Makefile	2016-07-31 16:51:17 UTC (rev 7652)
+++ trunk/lib/libmport/Makefile	2016-08-05 22:53:53 UTC (rev 7653)
@@ -8,7 +8,7 @@
 		default_cbs.c  merge_primative.c bundle_read_install_pkg.c \
 		update_primative.c bundle_read_update_pkg.c pkgmeta.c \
     	fetch.c index.c index_depends.c install.c clean.c setting.c  \
-   		stats.c verify.c lock.c
+   		stats.c verify.c lock.c mkdir.c
 INCS=	mport.h mport_dispatch.h
 
 CFLAGS+=	-I${.CURDIR} -fblocks -g

Added: trunk/lib/libmport/mkdir.c
===================================================================
--- trunk/lib/libmport/mkdir.c	                        (rev 0)
+++ trunk/lib/libmport/mkdir.c	2016-08-05 22:53:53 UTC (rev 7653)
@@ -0,0 +1,124 @@
+/*-
+ * Copyright (c) 1983, 1992, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+/* $FreeBSD: src/bin/mkdir/mkdir.c,v 1.32 2005/02/09 17:37:38 ru Exp $ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <err.h>
+#include <errno.h>
+#include <libgen.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sysexits.h>
+#include <unistd.h>
+
+#include "mport.h"
+#include "mport_private.h"
+
+
+/*
+ * Create directory (like mkdir -p) based on mkdir.c source.
+ * WARNING: unlike most mport_ functions this does not use MPORT_ERR_FATAL, etc
+ * omode should be the mode used, like say S_IRWXU | S_IRWXG | S_IRWXO
+ * Returns 1 if a directory has been created,
+ * 2 if it already existed, and 0 on failure.
+ */
+int
+mport_mkdirp(char *path, mode_t omode)
+{
+	struct stat sb;
+	mode_t numask, oumask;
+	int first, last, retval;
+	char *p;
+
+	p = path;
+	oumask = 0;
+	retval = 1;
+	if (p[0] == '/')		/* Skip leading '/'. */
+		++p;
+	for (first = 1, last = 0; !last ; ++p) {
+		if (p[0] == '\0')
+			last = 1;
+		else if (p[0] != '/')
+			continue;
+		*p = '\0';
+		if (!last && p[1] == '\0')
+			last = 1;
+		if (first) {
+			/*
+			 * POSIX 1003.2:
+			 * For each dir operand that does not name an existing
+			 * directory, effects equivalent to those caused by the
+			 * following command shall occcur:
+			 *
+			 * mkdir -p -m $(umask -S),u+wx $(dirname dir) &&
+			 *    mkdir [-m mode] dir
+			 *
+			 * We change the user's umask and then restore it,
+			 * instead of doing chmod's.
+			 */
+			oumask = umask(0);
+			numask = oumask & ~(S_IWUSR | S_IXUSR);
+			(void)umask(numask);
+			first = 0;
+		}
+		if (last)
+			(void)umask(oumask);
+		if (mkdir(path, last ? omode : S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
+			if (errno == EEXIST || errno == EISDIR) {
+				if (stat(path, &sb) < 0) {
+					warn("%s", path);
+					retval = 0;
+					break;
+				} else if (!S_ISDIR(sb.st_mode)) {
+					if (last)
+						errno = EEXIST;
+					else
+						errno = ENOTDIR;
+					warn("%s", path);
+					retval = 0;
+					break;
+				}
+				if (last)
+					retval = 2;
+			} else {
+				warn("%s", path);
+				retval = 0;
+				break;
+			}
+		}
+		if (!last)
+		    *p = '/';
+	}
+	if (!first && !last)
+		(void)umask(oumask);
+	return (retval);
+}


Property changes on: trunk/lib/libmport/mkdir.c
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Added: svn:eol-style
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+native
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Added: svn:keywords
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