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 */
6
7 /*\
8 * [Description]
9 *
10 * Verify that chmod(2) succeeds when used to change the mode permissions
11 * of a file or directory.
12 */
13
14 #include "tst_test.h"
15
16 #define MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
17 #define TESTFILE "testfile"
18 #define TESTDIR "testdir_1"
19
20 static int modes[] = {0, 07, 070, 0700, 0777, 02777, 04777, 06777};
21
22 static char *test_dir;
23 static char *test_file;
24
25 static struct variant {
26 char **name;
27 unsigned int mode_mask;
28 char *desc;
29 } variants[] = {
30 {&test_file, S_IFREG, "verify permissions of file"},
31 {&test_dir, S_IFDIR, "verify permissions of directory"},
32 };
33
verify_chmod(unsigned int n)34 static void verify_chmod(unsigned int n)
35 {
36 struct stat stat_buf;
37 int mode = modes[n];
38 struct variant *tc = &variants[tst_variant];
39
40 TST_EXP_PASS(chmod(*tc->name, mode), "chmod(%s, %04o)",
41 *tc->name, mode);
42
43 if (!TST_PASS)
44 return;
45
46 SAFE_STAT(*tc->name, &stat_buf);
47 stat_buf.st_mode &= ~tc->mode_mask;
48
49 if (stat_buf.st_mode == (unsigned int)mode) {
50 tst_res(TPASS, "stat(%s) mode=%04o",
51 *tc->name, stat_buf.st_mode);
52 } else {
53 tst_res(TFAIL, "stat(%s) mode=%04o",
54 *tc->name, stat_buf.st_mode);
55 }
56 }
57
setup(void)58 static void setup(void)
59 {
60 tst_res(TINFO, "Testing variant: %s", variants[tst_variant].desc);
61
62 if (tst_variant)
63 SAFE_MKDIR(*variants[tst_variant].name, MODE);
64 else
65 SAFE_TOUCH(*variants[tst_variant].name, MODE, NULL);
66 }
67
68 static struct tst_test test = {
69 .setup = setup,
70 .test_variants = ARRAY_SIZE(variants),
71 .tcnt = ARRAY_SIZE(modes),
72 .test = verify_chmod,
73 .needs_tmpdir = 1,
74 .bufs = (struct tst_buffers []) {
75 {&test_file, .str = TESTFILE},
76 {&test_dir, .str = TESTDIR},
77 {}
78 }
79 };
80