1 /*
2 * Copyright (c) International Business Machines Corp., 2001
3 * 07/2001 Ported by Wayne Boyer
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20 /*
21 * Test Name: lstat03
22 *
23 * Test Description:
24 * Verify that, lstat(2) succeeds to get the status of a file pointed to by
25 * symlink and fills the stat structure elements.
26 *
27 * Expected Result:
28 * lstat() should return value 0 on success and the stat structure elements
29 * should be filled with the symlink file information.
30 */
31 #include <stdio.h>
32 #include <sys/types.h>
33 #include <fcntl.h>
34 #include <sys/stat.h>
35 #include <errno.h>
36 #include <string.h>
37 #include <signal.h>
38 #include <pwd.h>
39
40 #include "test.h"
41 #include "safe_macros.h"
42
43 #define FILE_MODE S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
44 #define TESTFILE "testfile"
45 #define SFILE "sfile"
46 #define FILE_SIZE 1024
47 #define BUF_SIZE 256
48 #define PERMS 0644
49
50 char *TCID = "lstat03";
51 int TST_TOTAL = 1;
52 static uid_t user_id;
53 static gid_t group_id;
54
55 static char nobody_uid[] = "nobody";
56 static struct passwd *ltpuser;
57
58 static void setup(void);
59 static void cleanup(void);
60
main(int ac,char ** av)61 int main(int ac, char **av)
62 {
63 struct stat stat_buf;
64 int lc;
65
66 tst_parse_opts(ac, av, NULL, NULL);
67
68 setup();
69
70 for (lc = 0; TEST_LOOPING(lc); lc++) {
71 tst_count = 0;
72
73 TEST(lstat(SFILE, &stat_buf));
74
75 if (TEST_RETURN == -1) {
76 tst_resm(TFAIL | TTERRNO, "lstat(%s) failed", SFILE);
77 continue;
78 }
79
80 if ((stat_buf.st_uid != user_id) ||
81 (stat_buf.st_gid != group_id) ||
82 ((stat_buf.st_mode & S_IFMT) != S_IFLNK) ||
83 (stat_buf.st_size != strlen(TESTFILE))) {
84 tst_resm(TFAIL, "Functionality of lstat(2) on "
85 "'%s' Failed", SFILE);
86 } else {
87 tst_resm(TPASS, "Functionality of lstat(2) on "
88 "'%s' Succcessful", SFILE);
89 }
90 }
91
92 cleanup();
93 tst_exit();
94 }
95
setup(void)96 static void setup(void)
97 {
98 tst_sig(NOFORK, DEF_HANDLER, cleanup);
99
100 tst_require_root();
101
102 ltpuser = SAFE_GETPWNAM(NULL, nobody_uid);
103 SAFE_SETUID(NULL, ltpuser->pw_uid);
104
105 TEST_PAUSE;
106
107 tst_tmpdir();
108
109 if (tst_fill_file(TESTFILE, 'a', 1024, 1))
110 tst_brkm(TBROK, cleanup, "Failed to create " TESTFILE);
111
112 SAFE_SYMLINK(cleanup, TESTFILE, SFILE);
113
114 user_id = getuid();
115 group_id = getgid();
116 }
117
cleanup(void)118 static void cleanup(void)
119 {
120 tst_rmdir();
121 }
122