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
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19 /*
20 * Test Description:
21 * Verify that, fchown(2) succeeds to change the owner and group of a file
22 * specified by file descriptor to any numeric owner(uid)/group(gid) values
23 * when invoked by super-user.
24 */
25
26 #include <stdio.h>
27 #include <sys/types.h>
28 #include <sys/stat.h>
29 #include <fcntl.h>
30 #include <errno.h>
31 #include <string.h>
32 #include <signal.h>
33
34 #include "test.h"
35 #include "safe_macros.h"
36 #include "compat_16.h"
37
38 #define FILE_MODE S_IFREG | S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH
39 #define TESTFILE "testfile"
40
41 TCID_DEFINE(fchown05);
42
43 static struct test_case_t {
44 char *desc;
45 uid_t user_id;
46 gid_t group_id;
47 } tc[] = {
48 {"Change Owner/Group ids", 700, 701},
49 {"Change Owner id only", 702, -1},
50 {"Change Owner id only", 703, 701},
51 {"Change Group id only", -1, 704},
52 {"Change Group id only", 703, 705},
53 {NULL, 0, 0}
54 };
55
56 int TST_TOTAL = ARRAY_SIZE(tc);
57
58 static void setup(void);
59 static void cleanup(void);
60 static int fildes;
61
main(int ac,char ** av)62 int main(int ac, char **av)
63 {
64 struct stat stat_buf;
65 int i, lc;
66 uid_t user_id;
67 gid_t group_id;
68
69 tst_parse_opts(ac, av, NULL, NULL);
70
71 setup();
72
73 for (lc = 0; TEST_LOOPING(lc); lc++) {
74 tst_count = 0;
75
76 for (i = 0; tc[i].desc != NULL; i++) {
77 user_id = tc[i].user_id;
78 group_id = tc[i].group_id;
79
80 TEST(FCHOWN(cleanup, fildes, user_id, group_id));
81
82 if (TEST_RETURN == -1) {
83 tst_resm(TFAIL | TTERRNO,
84 "fchown() Fails to %s", tc[i].desc);
85 continue;
86 }
87
88 SAFE_FSTAT(cleanup, fildes, &stat_buf);
89
90 if (user_id == (uid_t)-1)
91 user_id = tc[i - 1].user_id;
92
93 if (group_id == (gid_t)-1)
94 group_id = tc[i - 1].group_id;
95
96 if ((stat_buf.st_uid != user_id) ||
97 (stat_buf.st_gid != group_id)) {
98 tst_resm(TFAIL, "%s: Incorrect owner"
99 "ship set, Expected %d %d",
100 TESTFILE, user_id, group_id);
101 } else {
102 tst_resm(TPASS,
103 "fchown() succeeds to %s of %s",
104 tc[i].desc, TESTFILE);
105 }
106 }
107 }
108
109 cleanup();
110 tst_exit();
111 }
112
setup(void)113 static void setup(void)
114 {
115 tst_sig(NOFORK, DEF_HANDLER, cleanup);
116
117 tst_require_root();
118
119 TEST_PAUSE;
120
121 tst_tmpdir();
122
123 fildes = SAFE_OPEN(cleanup, TESTFILE, O_RDWR | O_CREAT, FILE_MODE);
124 }
125
cleanup(void)126 static void cleanup(void)
127 {
128 if (fildes > 0 && close(fildes))
129 tst_resm(TWARN | TERRNO, "close(%s) Failed", TESTFILE);
130
131 tst_rmdir();
132 }
133