1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
/*
* This file and its contents are supplied under the terms of the
* Common Development and Distribution License ("CDDL"), version 1.0.
* You may only use this file in accordance with the terms of version
* 1.0 of the CDDL.
*
* A full copy of the text of the CDDL should have accompanied this
* source. A copy of the CDDL is also available via the Internet at
* http://www.illumos.org/license/CDDL.
*/
/*
* Copyright 2022 Marcel Telka <marcel@telka.sk>
*/
/*
* Test for fchmodat(AT_SYMLINK_NOFOLLOW)
*/
#include <sys/param.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int
main(void)
{
int ret = 0;
char template[MAXPATHLEN];
char *path;
char file[MAXPATHLEN];
char link[MAXPATHLEN];
/* prepare template for temporary directory */
if (strlcpy(template, "/tmp/XXXXXX", sizeof (template))
>= sizeof (template)) {
(void) printf("FAIL: Template copy failed\n");
exit(EXIT_FAILURE);
}
/* create temporary directory */
if ((path = mkdtemp(template)) == NULL) {
(void) printf("FAIL: Temporary directory creation failed\n");
exit(EXIT_FAILURE);
}
/* format file and link paths */
(void) snprintf(file, sizeof (file), "%s/file", path);
(void) snprintf(link, sizeof (link), "%s/link", path);
/* create the file */
int fd = open(file, O_WRONLY | O_CREAT, 0644);
if (fd < 0) {
(void) printf("FAIL: File %s creation failed\n", file);
(void) rmdir(path);
exit(EXIT_FAILURE);
}
(void) close(fd);
/* create symlink */
if (symlink("file", link) != 0) {
(void) printf("FAIL: Symlink %s creation failed\n", link);
(void) unlink(file);
(void) rmdir(path);
exit(EXIT_FAILURE);
}
/* test fchmodat(AT_SYMLINK_NOFOLLOW) for symlink */
if (fchmodat(AT_FDCWD, link, 0666, AT_SYMLINK_NOFOLLOW) == 0) {
(void) printf("FAIL: fchmodat(AT_SYMLINK_NOFOLLOW) "
"unexpectedly succeeded for symlink\n");
ret = EXIT_FAILURE;
}
/* test fchmodat(AT_SYMLINK_NOFOLLOW) for regular file */
if (fchmodat(AT_FDCWD, file, 0666, AT_SYMLINK_NOFOLLOW) != 0) {
(void) printf("FAIL: fchmodat(AT_SYMLINK_NOFOLLOW) failed for "
"regular file\n");
ret = EXIT_FAILURE;
}
/* cleanup */
(void) unlink(link);
(void) unlink(file);
(void) rmdir(path);
return (ret);
}
|
