1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2020 Viresh Kumar <[email protected]>
4 */
5
6 /*\
7 * [Description]
8 *
9 * Basic pidfd_open() test:
10 *
11 * - Fetch the PID of the current process and try to get its file descriptor.
12 * - Check that the close-on-exec flag is set on the file descriptor.
13 */
14
15 #include <unistd.h>
16 #include "tst_test.h"
17 #include "lapi/pidfd.h"
18
19 static int pidfd = -1;
20
run(void)21 static void run(void)
22 {
23 int flag;
24
25 TST_EXP_FD_SILENT(pidfd_open(getpid(), 0), "pidfd_open(getpid(), 0)");
26
27 pidfd = TST_RET;
28 flag = SAFE_FCNTL(pidfd, F_GETFD);
29
30 SAFE_CLOSE(pidfd);
31
32 if (!(flag & FD_CLOEXEC))
33 tst_brk(TFAIL, "pidfd_open(getpid(), 0) didn't set close-on-exec flag");
34
35 tst_res(TPASS, "pidfd_open(getpid(), 0) passed");
36 }
37
cleanup(void)38 static void cleanup(void)
39 {
40 if (pidfd > -1)
41 SAFE_CLOSE(pidfd);
42 }
43
44 static struct tst_test test = {
45 .setup = pidfd_open_supported,
46 .cleanup = cleanup,
47 .test_all = run,
48 };
49