1 /* $OpenBSD: pause.c,v 1.2 2001/11/11 23:26:35 deraadt Exp $ */
2 /*
3 * Copyright (c) 1993, 1994, 1995, 1996 by Chris Provenzano and contributors,
4 * proven@mit.edu All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Chris Provenzano,
17 * the University of California, Berkeley, and contributors.
18 * 4. Neither the name of Chris Provenzano, the University, nor the names of
19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY CHRIS PROVENZANO 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 CHRIS PROVENZANO, THE REGENTS OR
26 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
28 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
29 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
30 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
31 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
32 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 */
34
35 /*
36 * Test pause()
37 */
38
39 #include <stdio.h>
40 #include <signal.h>
41 #include <string.h>
42 #include <unistd.h>
43 #include "test.h"
44
45 int gotsig = 0;
46
47 void
handler(sig)48 handler(sig)
49 int sig;
50 {
51 int save_errno = errno;
52 char buf[8192];
53
54 snprintf(buf, sizeof buf, "%s\n", strsignal(sig));
55 write(STDOUT_FILENO, buf, strlen(buf));
56 errno = save_errno;
57 }
58
59 int
main()60 main()
61 {
62 sigset_t all;
63 pid_t self;
64
65 ASSERT(signal(SIGHUP, handler) != SIG_ERR);
66 CHECKe(self = getpid());
67 CHECKe(sigemptyset(&all));
68 CHECKe(sigaddset(&all, SIGHUP));
69 CHECKe(sigprocmask(SIG_BLOCK, &all, NULL));
70 CHECKe(kill(self, SIGHUP));
71 CHECKe(pause());
72 SUCCEED;
73 }
74