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 if disp is SIG_HOLD, then the
9 signal shall be added to the process's signal mask.
10
11 Steps:
12 1. Register SIGCHLD with myhandler
13 2. Add SIGCHLD to the process's signal mask using sigset with disp
14 equal to SIG_HOLD
15 3. raise SIGCHLD
16 4. Verify that SIGCHLD is pending.
17 */
18
19
20 #include <signal.h>
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <errno.h>
24 #include <string.h>
25 #include "posixtest.h"
26
27 #define ERR_MSG(f, rc) printf("Failed: func: %s rc: %u errno: %s\n", \
28 f, rc, strerror(errno))
29
myhandler(int signo PTS_ATTRIBUTE_UNUSED)30 static void myhandler(int signo PTS_ATTRIBUTE_UNUSED)
31 {
32 printf("SIGCHLD called. Inside handler\n");
33 }
34
main(void)35 int main(void)
36 {
37 sigset_t pendingset;
38 struct sigaction act;
39 act.sa_handler = myhandler;
40 act.sa_flags = 0;
41 sigemptyset(&act.sa_mask);
42 int rc;
43
44 rc = sigaction(SIGCHLD, &act, 0);
45 if (rc) {
46 ERR_MSG("sigaction()", rc);
47 return PTS_UNRESOLVED;
48 }
49
50 if (sigset(SIGCHLD, SIG_HOLD) == SIG_ERR) {
51 perror("Unexpected error while using sigset()");
52 return PTS_UNRESOLVED;
53 }
54
55 raise(SIGCHLD);
56
57 rc = sigpending(&pendingset);
58 if (rc) {
59 ERR_MSG("sigpending()", rc);
60 return PTS_UNRESOLVED;
61 }
62
63 if (sigismember(&pendingset, SIGCHLD) != 1) {
64 printf("Test FAILED: Signal SIGCHLD wasn't hold.\n");
65 return PTS_FAIL;
66 }
67
68 printf("Test PASSED\n");
69 return PTS_PASS;
70 }
71