1 /*
2 * Copyright (c) International Business Machines Corp., 2001
3 * 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 /*
21 * Test to check the error and trivial conditions in setuid
22 */
23
24 #include <errno.h>
25 #include <pwd.h>
26 #include <sys/types.h>
27 #include <sys/stat.h>
28 #include <unistd.h>
29
30 #include "test.h"
31 #include "compat_16.h"
32
33 #define ROOT_USER 0
34
35 char *TCID = "setuid03";
36 int TST_TOTAL = 1;
37
38 static char nobody_uid[] = "nobody";
39 static struct passwd *ltpuser;
40
41 static void setup(void);
42 static void cleanup(void);
43
main(int ac,char ** av)44 int main(int ac, char **av)
45 {
46 int lc;
47
48 tst_parse_opts(ac, av, NULL, NULL);
49
50 setup();
51
52 for (lc = 0; TEST_LOOPING(lc); lc++) {
53 tst_count = 0;
54
55 TEST(SETUID(cleanup, ROOT_USER));
56
57 if (TEST_RETURN != -1) {
58 tst_resm(TFAIL, "call succeeded unexpectedly");
59 continue;
60 }
61
62 if (TEST_ERRNO == EPERM) {
63 tst_resm(TPASS, "setuid returned errno EPERM");
64 } else {
65 tst_resm(TFAIL, "setuid returned unexpected errno - %d",
66 TEST_ERRNO);
67 }
68 }
69
70 cleanup();
71 tst_exit();
72 }
73
setup(void)74 static void setup(void)
75 {
76 tst_require_root();
77
78 /* Switch to nobody user for correct error code collection */
79 ltpuser = getpwnam(nobody_uid);
80 if (ltpuser == NULL)
81 tst_brkm(TBROK, cleanup, "getpwnam failed for user id %s",
82 nobody_uid);
83
84 if (setuid(ltpuser->pw_uid) == -1) {
85 tst_resm(TINFO, "setuid failed to "
86 "to set the effective uid to %d", ltpuser->pw_uid);
87 perror("setuid");
88 }
89
90 tst_sig(FORK, DEF_HANDLER, cleanup);
91
92 umask(0);
93
94 TEST_PAUSE;
95 }
96
cleanup(void)97 static void cleanup(void)
98 {
99 }
100