1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2023 FUJITSU LIMITED. All rights reserved.
4 * Copyright (c) Linux Test Project, 2003-2023
5 * Author: Yang Xu <[email protected]>
6 */
7
8 /*\
9 * [Description]
10 *
11 * Check the basic functionality of faccessat2().
12 *
13 * Minimum Linux version required is v5.8.
14 */
15
16 #include <stdlib.h>
17
18 #include "tst_test.h"
19 #include "lapi/syscalls.h"
20 #include "lapi/faccessat.h"
21
22 #define TESTDIR "faccessat2dir"
23 #define TESTFILE "faccessat2file"
24 #define RELPATH "faccessat2dir/faccessat2file"
25 #define TESTSYMLINK "faccessat2symlink"
26
27 static int dir_fd, bad_fd = -1;
28 static int atcwd_fd = AT_FDCWD;
29 static char *testfile;
30 static char *abs_path;
31 static char *rel_path;
32 static char *sym_path;
33
34 static struct tcase {
35 int *fd;
36 char **filename;
37 int flags;
38 } tcases[] = {
39 {&dir_fd, &testfile, 0},
40 {&bad_fd, &abs_path, 0},
41 {&atcwd_fd, &rel_path, 0},
42 {&dir_fd, &testfile, AT_EACCESS},
43 {&bad_fd, &abs_path, AT_EACCESS},
44 {&atcwd_fd, &rel_path, AT_EACCESS},
45 {&atcwd_fd, &sym_path, AT_SYMLINK_NOFOLLOW},
46 };
47
verify_faccessat2(unsigned int i)48 static void verify_faccessat2(unsigned int i)
49 {
50 struct tcase *tc = &tcases[i];
51
52 TST_EXP_PASS(faccessat2(*tc->fd, *tc->filename, R_OK, tc->flags),
53 "faccessat2(%d, %s, R_OK, %d)",
54 *tc->fd, *tc->filename, tc->flags);
55 }
56
setup(void)57 static void setup(void)
58 {
59 char *tmpdir_path = tst_get_tmpdir();
60
61 abs_path = tst_aprintf("%s/%s", tmpdir_path, RELPATH);
62 free(tmpdir_path);
63
64 SAFE_MKDIR(TESTDIR, 0777);
65 dir_fd = SAFE_OPEN(TESTDIR, O_DIRECTORY);
66 SAFE_TOUCH(abs_path, 0444, NULL);
67 SAFE_SYMLINK(abs_path, TESTSYMLINK);
68 }
69
cleanup(void)70 static void cleanup(void)
71 {
72 if (dir_fd > -1)
73 SAFE_CLOSE(dir_fd);
74 }
75
76 static struct tst_test test = {
77 .test = verify_faccessat2,
78 .tcnt = ARRAY_SIZE(tcases),
79 .setup = setup,
80 .cleanup = cleanup,
81 .bufs = (struct tst_buffers []) {
82 {&testfile, .str = TESTFILE},
83 {&rel_path, .str = RELPATH},
84 {&sym_path, .str = TESTSYMLINK},
85 {},
86 },
87 .needs_tmpdir = 1,
88 };
89