1/* $OpenBSD: sigmask.c,v 1.5 2012/02/20 01:49:09 guenther Exp $ */
2/* PUBLIC DOMAIN July 2003 Marco S Hyman <marc@snafu.org> */
3
4#include <sys/time.h>
5
6#include <pthread.h>
7#include <signal.h>
8#include <unistd.h>
9
10#include "test.h"
11
12/*
13 * Test that masked signals with a default action of terminate process
14 * do NOT terminate the process.
15 */
16int main (int argc, char *argv[])
17{
18	sigset_t mask;
19	int sig;
20	int r;
21
22	/* any two (or more) command line args should cause the program
23	   to die */
24	if (argc > 2) {
25		printf("trigger sigalrm[1] [test should die]\n");
26		ualarm(100000, 0);
27		CHECKe(sleep(1));
28	}
29
30	/* mask sigalrm */
31	CHECKe(sigemptyset(&mask));
32	CHECKe(sigaddset(&mask, SIGALRM));
33	CHECKr(pthread_sigmask(SIG_BLOCK, &mask, NULL));
34
35	/* make sure pthread_sigmask() returns the right value on failure */
36	r = pthread_sigmask(-1, &mask, NULL);
37	ASSERTe(r, == EINVAL);
38
39	/* now trigger sigalrm and wait for it */
40	printf("trigger sigalrm[2] [masked, test should not die]\n");
41	ualarm(100000, 0);
42	CHECKe(sleep(1));
43
44	/* sigwait for sigalrm, it should be pending.   If it is not
45	   the test will hang. */
46	CHECKr(sigwait(&mask, &sig));
47	ASSERT(sig == SIGALRM);
48
49	/* make sure sigwait didn't muck with the mask by triggering
50	   sigalrm, again */
51	printf("trigger sigalrm[3] after sigwait [masked, test should not die]\n");
52	ualarm(100000, 0);
53	CHECKe(sleep(1));
54
55	/* any single command line arg will run this code wich unmasks the
56	   signal and then makes sure the program terminates when sigalrm
57	   is triggered. */
58	if (argc > 1) {
59		printf("trigger sigalrm[4] [unmasked, test should die]\n");
60		CHECKr(pthread_sigmask(SIG_UNBLOCK, &mask, NULL));
61		ualarm(100000, 0);
62		CHECKe(sleep(1));
63	}
64
65	SUCCEED;
66}
67