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 * Tests if waitid() filters children correctly by the group ID.
12 *
13 * - waitid() with GID + 1 returns ECHILD
14 * - waitid() with GID returns correct data
15 */
16
17#include <stdlib.h>
18#include <sys/wait.h>
19#include "tst_test.h"
20
21static siginfo_t *infop;
22
23static void run(void)
24{
25	pid_t pid_group;
26	pid_t pid_child;
27
28	pid_child = SAFE_FORK();
29	if (!pid_child)
30		exit(0);
31
32	pid_group = getpgid(0);
33
34	TST_EXP_FAIL(waitid(P_PGID, pid_group+1, infop, WEXITED), ECHILD);
35
36	memset(infop, 0, sizeof(*infop));
37	TST_EXP_PASS(waitid(P_PGID, pid_group, infop, WEXITED));
38
39	TST_EXP_EQ_LI(infop->si_pid, pid_child);
40	TST_EXP_EQ_LI(infop->si_status, 0);
41	TST_EXP_EQ_LI(infop->si_signo, SIGCHLD);
42	TST_EXP_EQ_LI(infop->si_code, CLD_EXITED);
43}
44
45static struct tst_test test = {
46	.test_all = run,
47	.forks_child = 1,
48	.bufs = (struct tst_buffers[]) {
49		{&infop, .size = sizeof(*infop)},
50		{}
51	}
52};
53