1 /*
2 * Copyright (c) International Business Machines Corp., 2001
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 2 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
12 * the 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, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 /*
20 * Test Description:
21 * Verify that, lchown(2) succeeds to change the owner and group of a file
22 * specified by path to any numeric owner(uid)/group(gid) values when invoked
23 * by super-user.
24 *
25 * Expected Result:
26 * lchown(2) should return 0 and the ownership set on the file should match
27 * the numeric values contained in owner and group respectively.
28 *
29 * HISTORY
30 * 07/2001 Ported by Wayne Boyer
31 * 11/2010 Code cleanup by Cyril Hrubis [email protected]
32 */
33
34 #include <stdio.h>
35 #include <sys/types.h>
36 #include <sys/stat.h>
37 #include <fcntl.h>
38 #include <errno.h>
39 #include <string.h>
40 #include <signal.h>
41
42 #include "test.h"
43 #include "safe_macros.h"
44
45 /*
46 * Don't forget to remove USE_LEGACY_COMPAT_16_H from Makefile after
47 * rewriting all tests to the new API.
48 */
49 #include "compat_16.h"
50
51 #define FILE_MODE (S_IFREG|S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH)
52 #define TESTFILE "testfile"
53 #define SFILE "slink_file"
54
55 TCID_DEFINE(lchown01);
56 int TST_TOTAL = 5;
57
58 struct test_case_t {
59 char *desc;
60 uid_t user_id;
61 gid_t group_id;
62 };
63
64 static struct test_case_t test_cases[] = {
65 {"Change Owner/Group ids", 700, 701},
66 {"Change Owner id only", 702, -1},
67 {"Change Owner/Group ids", 703, 701},
68 {"Change Group id only", -1, 704},
69 {"Change Group/Group ids", 703, 705},
70 {"Change none", -1, -1},
71 {NULL, 0, 0}
72 };
73
74 static void setup(void);
75 static void cleanup(void);
76
main(int argc,char * argv[])77 int main(int argc, char *argv[])
78 {
79 struct stat stat_buf;
80 int lc;
81 int i;
82
83 tst_parse_opts(argc, argv, NULL, NULL);
84
85 setup();
86
87 for (lc = 0; TEST_LOOPING(lc); lc++) {
88
89 tst_count = 0;
90
91 for (i = 0; test_cases[i].desc != NULL; i++) {
92 uid_t user_id = test_cases[i].user_id;
93 gid_t group_id = test_cases[i].group_id;
94 char *test_desc = test_cases[i].desc;
95
96 /*
97 * Call lchown(2) with different user id and
98 * group id (numeric values) to set it on
99 * symlink of testfile.
100 */
101 TEST(LCHOWN(cleanup, SFILE, user_id, group_id));
102
103 if (TEST_RETURN == -1) {
104 tst_resm(TFAIL,
105 "lchown() Fails to %s, errno %d",
106 test_desc, TEST_ERRNO);
107 continue;
108 }
109
110 if (lstat(SFILE, &stat_buf) < 0) {
111 tst_brkm(TFAIL, cleanup, "lstat(2) "
112 "%s failed, errno %d",
113 SFILE, TEST_ERRNO);
114 }
115
116 if ((int)user_id == -1) {
117 if (i > 0)
118 user_id =
119 test_cases[i - 1].user_id;
120 else
121 user_id = geteuid();
122 }
123
124 if ((int)group_id == -1) {
125 if (i > 0)
126 group_id =
127 test_cases[i - 1].group_id;
128 else
129 group_id = getegid();
130 }
131
132 /*
133 * Check for expected Ownership ids
134 * set on testfile.
135 */
136 if ((stat_buf.st_uid != user_id) ||
137 (stat_buf.st_gid != group_id)) {
138 tst_resm(TFAIL,
139 "%s: incorrect ownership set, "
140 "Expected %d %d", SFILE,
141 user_id, group_id);
142 } else {
143 tst_resm(TPASS, "lchown() succeeds to "
144 "%s of %s", test_desc, SFILE);
145 }
146 }
147 }
148
149 cleanup();
150 tst_exit();
151 }
152
setup(void)153 static void setup(void)
154 {
155 int fd;
156
157 tst_sig(NOFORK, DEF_HANDLER, cleanup);
158
159 tst_require_root();
160
161 TEST_PAUSE;
162 tst_tmpdir();
163
164 if ((fd = open(TESTFILE, O_RDWR | O_CREAT, FILE_MODE)) == -1) {
165 tst_brkm(TBROK, cleanup, "open failed");
166 }
167 SAFE_CLOSE(cleanup, fd);
168
169 SAFE_SYMLINK(cleanup, TESTFILE, SFILE);
170 }
171
cleanup(void)172 static void cleanup(void)
173 {
174 tst_rmdir();
175 }
176