1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) Crackerjack Project., 2007
4 * Copyright (c) Manas Kumar Nayak maknayak@in.ibm.com>
5 * Copyright (C) 2021 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
6 */
7
8 /*\
9 * [Description]
10 *
11 * Test if waitid() filters children killed with SIGSTOP.
12 */
13
14 #include <sys/wait.h>
15 #include "tst_test.h"
16
17 static siginfo_t *infop;
18
run(void)19 static void run(void)
20 {
21 pid_t pid_child;
22
23 pid_child = SAFE_FORK();
24 if (!pid_child) {
25 SAFE_KILL(getpid(), SIGSTOP);
26 TST_CHECKPOINT_WAIT(0);
27 return;
28 }
29
30 memset(infop, 0, sizeof(*infop));
31 TST_EXP_PASS(waitid(P_PID, pid_child, infop, WSTOPPED | WNOWAIT));
32
33 TST_EXP_EQ_LI(infop->si_pid, pid_child);
34 TST_EXP_EQ_LI(infop->si_status, SIGSTOP);
35 TST_EXP_EQ_LI(infop->si_signo, SIGCHLD);
36 TST_EXP_EQ_LI(infop->si_code, CLD_STOPPED);
37
38 SAFE_KILL(pid_child, SIGCONT);
39
40 TST_CHECKPOINT_WAKE(0);
41 }
42
43 static struct tst_test test = {
44 .test_all = run,
45 .forks_child = 1,
46 .needs_checkpoints = 1,
47 .bufs = (struct tst_buffers[]) {
48 {&infop, .size = sizeof(*infop)},
49 {}
50 }
51 };
52