1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
4 *
5 * 06/1994 AUTHOR: Richard Logan CO-PILOT: William Roske
6 */
7
8 /*\
9 * [DESCRIPTION]
10 *
11 * Basic test for dup(2) of a system pipe descriptor.
12 */
13
14 #ifndef _GNU_SOURCE
15 #define _GNU_SOURCE
16 #endif
17
18 #include "tst_test.h"
19
20 int fd[2];
21
run(void)22 static void run(void)
23 {
24 TEST(dup(fd[0]));
25
26 if (TST_RET == -1)
27 tst_res(TFAIL | TTERRNO,
28 "dup of read side of pipe failed");
29 else {
30 tst_res(TPASS,
31 "dup(%d) read side of syspipe returned %ld",
32 fd[0], TST_RET);
33
34 SAFE_CLOSE(TST_RET);
35 }
36
37 TEST(dup(fd[1]));
38
39 if (TST_RET == -1) {
40 tst_res(TFAIL | TTERRNO,
41 "dup of write side of pipe failed");
42 } else {
43 tst_res(TPASS,
44 "dup(%d) write side of syspipe returned %ld",
45 fd[1], TST_RET);
46
47 SAFE_CLOSE(TST_RET);
48 }
49 }
50
setup(void)51 void setup(void)
52 {
53 fd[0] = -1;
54
55 SAFE_PIPE(fd);
56 }
57
58 static struct tst_test test = {
59 .test_all = run,
60 .setup = setup,
61 .needs_tmpdir = 1,
62 };
63