1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /* Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
3 * Author: Vatsal Avasthi
4 *
5 * Test Description:
6 * This test verifies that flock() succeeds with all kind of locks.
7 */
8
9 #include <errno.h>
10 #include <sys/file.h>
11
12 #include "tst_test.h"
13
14 static int fd = -1;
15
16 static struct tcase {
17 int operation;
18 char *opt;
19 } tcases[] = {
20 {LOCK_SH, "Shared Lock" },
21 {LOCK_UN, "Unlock"},
22 {LOCK_EX, "Exclusive Lock"},
23 };
24
verify_flock(unsigned n)25 static void verify_flock(unsigned n)
26 {
27 struct tcase *tc = &tcases[n];
28
29 TEST(flock(fd, tc->operation));
30 if (TST_RET == -1) {
31 tst_res(TFAIL | TTERRNO,
32 "flock() failed to get %s", tc->opt);
33 } else {
34 tst_res(TPASS,
35 "flock() succeeded with %s", tc->opt);
36 }
37 }
38
setup(void)39 static void setup(void)
40 {
41 fd = SAFE_OPEN("testfile", O_CREAT | O_TRUNC | O_RDWR, 0644);
42 }
43
cleanup(void)44 static void cleanup(void)
45 {
46 if (fd >= 0)
47 SAFE_CLOSE(fd);
48 }
49
50 static struct tst_test test = {
51 .tcnt = ARRAY_SIZE(tcases),
52 .test = verify_flock,
53 .needs_tmpdir = 1,
54 .setup = setup,
55 .cleanup = cleanup,
56 };
57