1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
4 * Authors: William Roske, Dave Fenner
5 *
6 * 06/2019 Ported to new library:
7 * Christian Amann <[email protected]>
8 */
9 /*
10 * Basic test for lstat():
11 *
12 * Tests if lstat() writes correct information about a symlink
13 * into the stat structure.
14 */
15
16 #include <errno.h>
17 #include <string.h>
18 #include <unistd.h>
19 #include <sys/stat.h>
20 #include <sys/types.h>
21 #include "tst_test.h"
22
23 #define TESTFILE "tst_file"
24 #define TESTSYML "tst_syml"
25
26 static uid_t user_id;
27 static gid_t group_id;
28
run(void)29 static void run(void)
30 {
31 struct stat stat_buf;
32
33 memset(&stat_buf, 0, sizeof(stat_buf));
34
35 TEST(lstat(TESTSYML, &stat_buf));
36 if (TST_RET == -1)
37 tst_res(TFAIL | TTERRNO, "Calling lstat() failed");
38
39 if ((stat_buf.st_mode & S_IFMT) != S_IFLNK ||
40 stat_buf.st_uid != user_id ||
41 stat_buf.st_gid != group_id) {
42 /*
43 * b/148414662 b/150467619
44 * Symlinks normally have a size equal to the path length but this is not true
45 * for symlinks encrypted by per-file encryption.
46 * stat_buf.st_size != strlen(TESTFILE)) {
47 */
48 tst_res(TFAIL,
49 "lstat() reported incorrect values for the symlink!");
50 } else {
51 tst_res(TPASS,
52 "lstat() reported correct values for the symlink!");
53 }
54 }
55
setup(void)56 static void setup(void)
57 {
58 user_id = getuid();
59 group_id = getgid();
60
61 SAFE_TOUCH(TESTFILE, 0644, NULL);
62 SAFE_SYMLINK(TESTFILE, TESTSYML);
63 }
64
cleanup(void)65 static void cleanup(void)
66 {
67 SAFE_UNLINK(TESTSYML);
68 }
69
70 static struct tst_test test = {
71 .test_all = run,
72 .setup = setup,
73 .cleanup = cleanup,
74 .needs_tmpdir = 1,
75 };
76