1 /*
2 * Check how strace -e signal=set works.
3 *
4 * Copyright (c) 2016 Dmitry V. Levin <ldv@altlinux.org>
5 * 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. The name of the author may not be used to endorse or promote products
16 * derived from this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30 #include "tests.h"
31 #include <assert.h>
32 #include <signal.h>
33 #include <stdio.h>
34 #include <stdlib.h>
35 #include <unistd.h>
36
37 static pid_t pid;
38 static uid_t uid;
39
40 static void
handler(int sig)41 handler(int sig)
42 {
43 }
44
45 static void
test_sig(int signo,const char * name)46 test_sig(int signo, const char *name)
47 {
48 const struct sigaction act = { .sa_handler = handler };
49
50 if (sigaction(signo, &act, NULL))
51 perror_msg_and_fail("sigaction: %d", signo);
52
53 sigset_t mask;
54 sigemptyset(&mask);
55 sigaddset(&mask, signo);
56 if (sigprocmask(SIG_UNBLOCK, &mask, NULL))
57 perror_msg_and_fail("sigprocmask: %d", signo);
58
59 if (kill(pid, signo))
60 perror_msg_and_fail("kill(%d, %d)", pid, signo);
61
62 if (name && *name)
63 printf("--- %s {si_signo=%s, si_code=SI_USER"
64 ", si_pid=%d, si_uid=%d} ---\n",
65 name, name, pid, uid);
66 }
67
68 int
main(int ac,const char ** av)69 main(int ac, const char **av)
70 {
71 assert(ac & 1);
72
73 pid = getpid();
74 uid = geteuid();
75
76 int i;
77 for (i = 1; i < ac; i += 2)
78 test_sig(atoi(av[i]), av[i + 1]);
79
80 puts("+++ exited with 0 +++");
81 return 0;
82 }
83