1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2001
4 * 07/2001 ported by John George
5 * Copyright (c) 2022 SUSE LLC Avinesh Kumar <[email protected]>
6 */
7
8 /*\
9 * [Description]
10 *
11 * Verify that the system call utime() successfully changes the last
12 * access and modification times of a file to the values specified by
13 * times argument, under the following constraints:
14 *
15 * - The times argument is not NULL.
16 * - The user ID of the process is not "root".
17 * - The file is owned by the user ID of the process.
18 */
19
20 #include <utime.h>
21 #include <pwd.h>
22
23 #include "tst_test.h"
24
25 #define MNT_POINT "mntpoint"
26 #define TEMP_FILE MNT_POINT"/tmp_file"
27
28 #define FILE_MODE 0444
29 #define MODE_RWX 0777
30 #define NEW_MODF_TIME 10000
31 #define NEW_ACCESS_TIME 20000
32
33 #define TEST_USERNAME "nobody"
34
35 static struct utimbuf times = {
36 .modtime = NEW_MODF_TIME,
37 .actime = NEW_ACCESS_TIME
38 };
39
setup(void)40 static void setup(void)
41 {
42 struct passwd *pw;
43
44 SAFE_CHMOD(MNT_POINT, MODE_RWX);
45
46 pw = SAFE_GETPWNAM(TEST_USERNAME);
47 tst_res(TINFO, "Switching effective user ID to user: %s", pw->pw_name);
48 SAFE_SETEUID(pw->pw_uid);
49
50 SAFE_TOUCH(TEMP_FILE, FILE_MODE, NULL);
51 }
52
run(void)53 static void run(void)
54 {
55 struct stat stat_buf;
56
57 TST_EXP_PASS(utime(TEMP_FILE, ×), "utime(%s, ×)", TEMP_FILE);
58 if (!TST_PASS)
59 return;
60
61 SAFE_STAT(TEMP_FILE, &stat_buf);
62
63 TST_EXP_EQ_LI(stat_buf.st_mtime, NEW_MODF_TIME);
64 TST_EXP_EQ_LI(stat_buf.st_atime, NEW_ACCESS_TIME);
65 }
66
67 static struct tst_test test = {
68 .test_all = run,
69 .setup = setup,
70 .needs_root = 1,
71 .mount_device = 1,
72 .mntpoint = MNT_POINT,
73 .all_filesystems = 1,
74 .skip_filesystems = (const char *const[]) {
75 "vfat",
76 "exfat",
77 NULL
78 }
79 };
80