1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2001
4 * 07/2001 John George
5 * Copyright (c) 2018 Cyril Hrubis <chrubis@suse.cz>
6 */
7
8 /*
9 * Check that when a child kills itself by SIGALRM the waiting parent is
10 * correctly notified.
11 *
12 * Fork a child that raises(SIGALRM), the parent checks that SIGALRM was
13 * returned.
14 */
15 #include <stdlib.h>
16 #include <sys/wait.h>
17 #include "tst_test.h"
18
run(void)19 static void run(void)
20 {
21 pid_t pid;
22 int status;
23
24 pid = SAFE_FORK();
25 if (!pid) {
26 raise(SIGALRM);
27 exit(0);
28 }
29
30 TST_EXP_PID_SILENT(waitpid(pid, &status, 0));
31 if (!TST_PASS)
32 return;
33
34 if (TST_RET != pid) {
35 tst_res(TFAIL, "waitpid() returned wrong pid %li, expected %i",
36 TST_RET, pid);
37 } else {
38 tst_res(TPASS, "waitpid() returned correct pid %i", pid);
39 }
40
41 if (!WIFSIGNALED(status)) {
42 tst_res(TFAIL, "WIFSIGNALED() not set in status (%s)",
43 tst_strstatus(status));
44 return;
45 }
46
47 tst_res(TPASS, "WIFSIGNALED() set in status");
48
49 if (WTERMSIG(status) != SIGALRM) {
50 tst_res(TFAIL, "WTERMSIG() != SIGALRM but %s",
51 tst_strsig(WTERMSIG(status)));
52 return;
53 }
54
55 tst_res(TPASS, "WTERMSIG() == SIGALRM");
56 }
57
58 static struct tst_test test = {
59 .forks_child = 1,
60 .test_all = run,
61 };
62