1 /*
2 * Copyright (c) International Business Machines Corp., 2001
3 * Copyright (c) 2012-2018 Cyril Hrubis <chrubis@suse.cz>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20 /*
21 * wait401 - check that a call to wait4() correctly waits for a child
22 * process to exit
23 */
24
25 #include <stdlib.h>
26 #include <errno.h>
27 #define _USE_BSD
28 #include <sys/types.h>
29 #include <sys/resource.h>
30 #include <sys/wait.h>
31 #include "tst_test.h"
32
run(void)33 static void run(void)
34 {
35 pid_t pid;
36 int status = 1;
37 struct rusage rusage;
38
39 pid = SAFE_FORK();
40 if (!pid) {
41 TST_PROCESS_STATE_WAIT(getppid(), 'S');
42 exit(0);
43 }
44
45 TEST(wait4(pid, &status, 0, &rusage));
46 if (TST_RET == -1) {
47 tst_res(TFAIL | TERRNO, "wait4() failed");
48 return;
49 }
50
51 if (TST_RET != pid) {
52 tst_res(TFAIL, "waitpid() returned wrong pid %li, expected %i",
53 TST_RET, pid);
54 } else {
55 tst_res(TPASS, "waitpid() returned correct pid %i", pid);
56 }
57
58 if (!WIFEXITED(status)) {
59 tst_res(TFAIL, "WIFEXITED() not set in status (%s)",
60 tst_strstatus(status));
61 return;
62 }
63
64 tst_res(TPASS, "WIFEXITED() is set in status");
65
66 if (WEXITSTATUS(status))
67 tst_res(TFAIL, "WEXITSTATUS() != 0 but %i", WEXITSTATUS(status));
68 else
69 tst_res(TPASS, "WEXITSTATUS() == 0");
70
71 }
72
73 static struct tst_test test = {
74 .forks_child = 1,
75 .test_all = run,
76 };
77