1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (c) International Business Machines Corp., 2002
4 * Copyright (c) 2003-2023 Linux Test Project
5 */
6
7/*\
8 * [Description]
9 *
10 * Verify that, an attempt to write to the read end of a pipe fails with EBADF
11 * and an attempt to read from the write end of a pipe also fails with EBADF.
12 */
13
14#include "tst_test.h"
15
16static int fd[2];
17
18static void verify_pipe(void)
19{
20	char buf[] = "abcdef";
21
22	SAFE_PIPE(fd);
23
24	TST_EXP_FAIL2(write(fd[0], "A", 1), EBADF);
25	TST_EXP_FAIL2(read(fd[1], buf, 1), EBADF);
26
27	SAFE_CLOSE(fd[0]);
28	SAFE_CLOSE(fd[1]);
29}
30
31static void cleanup(void)
32{
33	if (fd[0] > 0)
34		SAFE_CLOSE(fd[0]);
35	if (fd[1] > 0)
36		SAFE_CLOSE(fd[1]);
37}
38
39static struct tst_test test = {
40	.test_all = verify_pipe,
41	.cleanup = cleanup
42};
43