1 /*        $NetBSD: global.c,v 1.9 2020/04/23 00:03:40 joerg Exp $     */
2 
3 /*
4  * Copyright (c) 1989, 1993
5  *        The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #include <sys/cdefs.h>
33 #ifndef lint
34 #if 0
35 static char sccsid[] = "@(#)global.c    8.1 (Berkeley) 6/4/93";
36 #else
37 __RCSID("$NetBSD: global.c,v 1.9 2020/04/23 00:03:40 joerg Exp $");
38 #endif
39 #endif /* not lint */
40 
41 /*
42  * Allocate global variables.  We do this
43  * by including the header file that defines
44  * them all as externs, but first we define
45  * the keyword "extern" to be nothing, so that
46  * we will actually allocate the space.
47  */
48 
49 #include <defs.h>
50 #include <ext.h>
51 
52 char      options[256];
53 char      do_dont_resp[256];
54 char      will_wont_resp[256];
55 int       linemode; /* linemode on/off */
56 #ifdef    LINEMODE
57 int       uselinemode;        /* what linemode to use (on/off) */
58 int       editmode; /* edit modes in use */
59 int       useeditmode;        /* edit modes to use */
60 int       alwayslinemode;     /* command line option */
61 # ifdef   KLUDGELINEMODE
62 int       lmodetype;          /* Client support for linemode */
63 # endif   /* KLUDGELINEMODE */
64 #endif    /* LINEMODE */
65 int       flowmode; /* current flow control state */
66 int       restartany;         /* restart output on any character state */
67 #ifdef DIAGNOSTICS
68 int       diagnostic;         /* telnet diagnostic capabilities */
69 #endif /* DIAGNOSTICS */
70 #ifdef SECURELOGIN
71 int       require_secure_login;
72 #endif
73 #ifdef AUTHENTICATION
74 int       auth_level;
75 #endif
76 
77 slcfun    slctab[NSLC + 1];   /* slc mapping table */
78 char      terminaltype[41];
79 
80 /*
81  * I/O data buffers, pointers, and counters.
82  */
83 char      ptyobuf[BUFSIZ+NETSLOP], *pfrontp, *pbackp;
84 char      netibuf[BUFSIZ], *netip;
85 char      netobuf[BUFSIZ+NETSLOP], *nfrontp, *nbackp;
86 char      *neturg;            /* one past last bye of urgent data */
87 int       pcc, ncc;
88 int       pty, net;
89 char      *line;
90 int       SYNCHing;           /* we are in TELNET SYNCH mode */
91 
92 #ifdef    ENCRYPTION
93 char      *nclearto;
94 #endif    /* ENCRYPTION */
95 
96 struct clockstate clocks;
97