1 /*
2 * Copyright (c) 2003, Intel Corporation. All rights reserved.
3 * Created by: salwan.searty REMOVE-THIS AT intel DOT com
4 * This file is licensed under the GPL license. For the full content
5 * of this license, see the COPYING file at the top level of this
6 * source tree.
7
8 This program tests the assertion that the process's signal mask will be
9 restored to the state that it was in prior to the delivery of the signal
10
11 Steps:
12 1. Empty the signal mask
13 2. Deliver the signal
14 3. When we return from the signal handler, verify that the signal mask
15 is still empty, otherwise fail.
16
17 */
18
19
20 #include <signal.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include "posixtest.h"
24
25 #define NUMSIGNALS (sizeof(siglist) / sizeof(siglist[0]))
26
is_empty(sigset_t * set)27 static int is_empty(sigset_t * set)
28 {
29
30 int i;
31 int siglist[] = { SIGABRT, SIGALRM, SIGBUS, SIGCHLD,
32 SIGCONT, SIGFPE, SIGHUP, SIGILL, SIGINT,
33 SIGPIPE, SIGQUIT, SIGSEGV,
34 SIGTERM, SIGTSTP, SIGTTIN, SIGTTOU,
35 SIGUSR1, SIGUSR2,
36 #ifdef SIGPOLL
37 SIGPOLL,
38 #endif
39 #ifdef SIGPROF
40 SIGPROF,
41 #endif
42 SIGSYS,
43 SIGTRAP, SIGURG, SIGVTALRM, SIGXCPU, SIGXFSZ
44 };
45
46 for (i = 0; i < (int)NUMSIGNALS; i++) {
47 if (sigismember(set, siglist[i]) != 0)
48 return 0;
49 }
50 return 1;
51 }
52
myhandler(int signo PTS_ATTRIBUTE_UNUSED)53 static void myhandler(int signo PTS_ATTRIBUTE_UNUSED)
54 {
55 }
56
main(void)57 int main(void)
58 {
59 sigset_t mask;
60 sigemptyset(&mask);
61
62 if (sigprocmask(SIG_SETMASK, &mask, NULL) == -1) {
63 perror("sigprocmask(SIG_SETMASK, &mask, NULL) failed");
64 return PTS_UNRESOLVED;
65 }
66
67 if (sigset(SIGCHLD, myhandler) == SIG_ERR) {
68 perror("Unexpected error while using sigset()");
69 return PTS_UNRESOLVED;
70 }
71
72 raise(SIGCHLD);
73 sigprocmask(SIG_SETMASK, NULL, &mask);
74
75 if (is_empty(&mask) != 1) {
76 printf("Test FAILED: signal mask should be empty\n");
77 return PTS_FAIL;
78 }
79 return PTS_PASS;
80 }
81