1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
4 * Copyright (c) 2020 SUSE LLC
5 *
6 * 03/30/1992 AUTHOR: William Roske CO-PILOT: Dave Fenner
7 *
8 */
9
10 #include "tst_test.h"
11
12 static int fd;
13
verify_dup(void)14 static void verify_dup(void)
15 {
16 TEST(dup(fd));
17
18 if (TST_RET < -1) {
19 tst_res(TFAIL, "Invalid dup() return value %ld", TST_RET);
20 } else if (TST_RET == -1) {
21 tst_res(TFAIL | TTERRNO, "dup(%d) Failed", fd);
22 } else {
23 tst_res(TPASS, "dup(%d) returned %ld", fd, TST_RET);
24 SAFE_CLOSE(TST_RET);
25 }
26 }
27
setup(void)28 static void setup(void)
29 {
30 fd = SAFE_OPEN("dupfile", O_RDWR | O_CREAT, 0700);
31 }
32
cleanup(void)33 static void cleanup(void)
34 {
35 if (fd > 0)
36 SAFE_CLOSE(fd);
37 }
38
39 static struct tst_test test = {
40 .test_all = verify_dup,
41 .setup = setup,
42 .cleanup = cleanup,
43 .needs_tmpdir = 1,
44 };
45