1 /* $OpenBSD: tipout.c,v 1.18 2006/05/31 07:03:08 jason Exp $ */
2 /* $NetBSD: tipout.c,v 1.5 1996/12/29 10:34:12 cgd Exp $ */
5 * SPDX-License-Identifier: BSD-3-Clause
7 * Copyright (c) 1983, 1993
8 * The Regents of the University of California. All rights reserved.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
40 static char sccsid[] = "@(#)tipout.c 8.1 (Berkeley) 6/6/93";
41 static const char rcsid[] = "$OpenBSD: tipout.c,v 1.18 2006/05/31 07:03:08 jason Exp $";
50 * lower fork of tip -- handles passive side
51 * reading from the remote host
54 static jmp_buf sigbuf;
56 static void intIOT(int);
57 static void intEMT(int);
58 static void intTERM(int);
59 static void intSYS(int);
62 * TIPOUT wait state routine --
63 * sent by TIPIN when it wants to posses the remote host
69 write(repdes[1],&ccc,1);
70 read(fildes[0], &ccc,1);
75 * Scripting command interpreter --
76 * accepts script file name over the pipe and acts accordingly
86 read(fildes[0], &c, 1);
87 while (c != '\n' && (size_t)(pline - line) < sizeof(line)) {
89 read(fildes[0], &c, 1);
92 if (boolean(value(SCRIPT)) && fscript != NULL)
95 setboolean(value(SCRIPT), FALSE);
98 if ((fscript = fopen(line, "a")) == NULL)
102 setboolean(value(SCRIPT), TRUE);
105 write(repdes[1], &reply, 1);
112 if (boolean(value(SCRIPT)) && fscript != NULL)
114 if (signo && tipin_pid)
115 kill(tipin_pid, signo);
123 setboolean(value(BEAUTIFY), !boolean(value(BEAUTIFY)));
128 * ****TIPOUT TIPOUT****
137 sigset_t mask, omask;
139 signal(SIGINT, SIG_IGN);
140 signal(SIGQUIT, SIG_IGN);
141 signal(SIGEMT, intEMT); /* attention from TIPIN */
142 signal(SIGTERM, intTERM); /* time to go signal */
143 signal(SIGIOT, intIOT); /* scripting going on signal */
144 signal(SIGHUP, intTERM); /* for dial-ups */
145 signal(SIGSYS, intSYS); /* beautify toggle */
146 (void) setjmp(sigbuf);
147 sigprocmask(SIG_BLOCK, NULL, &omask);
149 sigprocmask(SIG_SETMASK, &omask, NULL);
150 scnt = read(FD, buf, BUFSIZ);
154 (scnt < 0 && (errno == EIO || errno == ENXIO))) {
156 sigaddset(&mask, SIGTERM);
157 sigprocmask(SIG_BLOCK, &mask, NULL);
165 sigaddset(&mask, SIGEMT);
166 sigaddset(&mask, SIGTERM);
167 sigaddset(&mask, SIGIOT);
168 sigaddset(&mask, SIGSYS);
169 sigprocmask(SIG_BLOCK, &mask, NULL);
170 for (cp = buf; cp < buf + cnt; cp++)
172 write(STDOUT_FILENO, buf, cnt);
173 if (boolean(value(SCRIPT)) && fscript != NULL) {
174 if (!boolean(value(BEAUTIFY))) {
175 fwrite(buf, 1, cnt, fscript);
177 for (cp = buf; cp < buf + cnt; cp++)
178 if ((*cp >= ' ' && *cp <= '~') ||
179 any(*cp, value(EXCEPTIONS)))
182 for (cp = buf; cp < buf + cnt; cp++) {