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 #define _XOPEN_SOURCE 600
20
21 #include <signal.h>
22 #include <stdio.h>
23 #include <stdlib.h>
24 #include "posixtest.h"
25
26 #define NUMSIGNALS (sizeof(siglist) / sizeof(siglist[0]))
27
is_empty(sigset_t * set)28 int is_empty(sigset_t * set)
29 {
30
31 int i;
32 int siglist[] = { SIGABRT, SIGALRM, SIGBUS, SIGCHLD,
33 SIGCONT, SIGFPE, SIGHUP, SIGILL, SIGINT,
34 SIGPIPE, SIGQUIT, SIGSEGV,
35 SIGTERM, SIGTSTP, SIGTTIN, SIGTTOU,
36 SIGUSR1, SIGUSR2,
37 #ifdef SIGPOLL
38 SIGPOLL,
39 #endif
40 #ifdef SIGPROF
41 SIGPROF,
42 #endif
43 SIGSYS,
44 SIGTRAP, SIGURG, SIGVTALRM, SIGXCPU, SIGXFSZ
45 };
46
47 for (i = 0; i < NUMSIGNALS; i++) {
48 if (sigismember(set, siglist[i]) != 0)
49 return 0;
50 }
51 return 1;
52 }
53
myhandler(int signo)54 void myhandler(int signo)
55 {
56 }
57
main(void)58 int main(void)
59 {
60 sigset_t mask;
61 sigemptyset(&mask);
62
63 if (sigprocmask(SIG_SETMASK, &mask, NULL) == -1) {
64 perror("sigprocmask(SIG_SETMASK, &mask, NULL) failed");
65 return PTS_UNRESOLVED;
66 }
67
68 if (sigset(SIGCHLD, myhandler) == SIG_ERR) {
69 perror("Unexpected error while using sigset()");
70 return PTS_UNRESOLVED;
71 }
72
73 raise(SIGCHLD);
74 sigprocmask(SIG_SETMASK, NULL, &mask);
75
76 if (is_empty(&mask) != 1) {
77 printf("Test FAILED: signal mask should be empty\n");
78 return PTS_FAIL;
79 }
80 return PTS_PASS;
81 }
82