1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2001
4 * 07/2001 Ported by Wayne Boyer
5 * Copyright (c) 2022 SUSE LLC Avinesh Kumar <[email protected]>
6 */
7
8 /*\
9 * [Description]
10 *
11 * Verify that rename() does nothing and returns a success status when
12 * oldpath and newpath are existing hard links referring to the same file.
13 */
14
15 #include <stdio.h>
16 #include "tst_test.h"
17
18 #define MNT_POINT "mntpoint"
19 #define TEMP_FILE1 MNT_POINT"/tmpfile1"
20 #define TEMP_FILE2 MNT_POINT"/tmpfile2"
21
22 static struct stat buf1, buf2;
23
setup(void)24 static void setup(void)
25 {
26 SAFE_TOUCH(TEMP_FILE1, 0700, NULL);
27 SAFE_STAT(TEMP_FILE1, &buf1);
28 SAFE_LINK(TEMP_FILE1, TEMP_FILE2);
29 }
30
run(void)31 static void run(void)
32 {
33 TST_EXP_PASS(rename(TEMP_FILE1, TEMP_FILE1));
34 if (TST_RET != 0)
35 return;
36
37 SAFE_STAT(TEMP_FILE2, &buf2);
38 TST_EXP_EQ_LU(buf1.st_dev, buf2.st_dev);
39 TST_EXP_EQ_LU(buf1.st_ino, buf2.st_ino);
40 }
41
42 static struct tst_test test = {
43 .setup = setup,
44 .test_all = run,
45 .needs_root = 1,
46 .mntpoint = MNT_POINT,
47 .mount_device = 1,
48 .all_filesystems = 1,
49 .skip_filesystems = (const char *const[]){
50 "exfat",
51 "vfat",
52 NULL
53 },
54 };
55