1 /* Test checking user's permissions for a file.
2 Copyright (C) 2011-2018 Free Software Foundation, Inc.
3
4 This program is free software: you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16
17 #include <config.h>
18
19 #include <unistd.h>
20
21 #include "signature.h"
22 SIGNATURE_CHECK (faccessat, int, (int, const char *, int, int));
23
24 #include <errno.h>
25 #include <fcntl.h>
26
27 #include "macros.h"
28
29 #define BASE "test-faccessat.t"
30
31 int
main(void)32 main (void)
33 {
34 /* Test behaviour for invalid file descriptors. */
35 {
36 errno = 0;
37 ASSERT (faccessat (-1, "foo", F_OK, 0) == -1);
38 ASSERT (errno == EBADF);
39 }
40 {
41 close (99);
42 errno = 0;
43 ASSERT (faccessat (99, "foo", F_OK, 0) == -1);
44 ASSERT (errno == EBADF);
45 }
46
47 /* Test behavior with trailing slash. */
48 unlink (BASE "file");
49 ASSERT (faccessat (AT_FDCWD, ".", X_OK, 0) == 0);
50 ASSERT (faccessat (AT_FDCWD, "./", X_OK, 0) == 0);
51 ASSERT (close (open (BASE "file", O_CREAT | O_WRONLY, 0)) == 0);
52 ASSERT (faccessat (AT_FDCWD, BASE "file", F_OK, 0) == 0);
53 ASSERT (faccessat (AT_FDCWD, BASE "file/", F_OK, 0) != 0);
54 unlink (BASE "link1");
55 if (symlink (".", BASE "link1") == 0)
56 {
57 ASSERT (faccessat (AT_FDCWD, BASE "link1", X_OK, 0) == 0);
58 ASSERT (faccessat (AT_FDCWD, BASE "link1/", X_OK, 0) == 0);
59
60 unlink (BASE "link2");
61 ASSERT (symlink (BASE "file", BASE "link2") == 0);
62 ASSERT (faccessat (AT_FDCWD, BASE "link2", F_OK, 0) == 0);
63 ASSERT (faccessat (AT_FDCWD, BASE "link2/", F_OK, 0) != 0);
64 unlink (BASE "link2");
65
66 unlink (BASE "link3");
67 ASSERT (symlink (BASE "no-such-file", BASE "link3") == 0);
68 ASSERT (faccessat (AT_FDCWD, BASE "link3", F_OK, 0) != 0);
69 ASSERT (faccessat (AT_FDCWD, BASE "link3/", F_OK, 0) != 0);
70 unlink (BASE "link3");
71 }
72 unlink (BASE "link1");
73 unlink (BASE "file");
74
75 return 0;
76 }
77