1 /*
2 * Copyright (C) International Business Machines Corp., 2001
3 * Ported by Wayne Boyer
4 * Adapted by Dustin Kirkland (k1rkland@us.ibm.com)
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
14 * the GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 /*
22 * Testcase to check the basic functionality of setfsgid(2) system
23 * call fails when called by a non-root user.
24 */
25
26 #include <stdio.h>
27 #include <unistd.h>
28 #include <sys/types.h>
29 #include <errno.h>
30 #include <pwd.h>
31 #include <grp.h>
32
33 #include "test.h"
34 #include "compat_16.h"
35
36 TCID_DEFINE(setfsgid03);
37 int TST_TOTAL = 1;
38
39 static char nobody_uid[] = "nobody";
40 static struct passwd *ltpuser;
41
42 static void setup(void);
43 static void cleanup(void);
44
main(int ac,char ** av)45 int main(int ac, char **av)
46 {
47 int lc;
48
49 gid_t gid;
50
51 tst_parse_opts(ac, av, NULL, NULL);
52
53 setup();
54
55 for (lc = 0; TEST_LOOPING(lc); lc++) {
56 tst_count = 0;
57
58 gid = 1;
59 while (!getgrgid(gid))
60 gid++;
61
62 GID16_CHECK(gid, setfsgid, cleanup);
63
64 TEST(SETFSGID(cleanup, gid));
65
66 if (TEST_RETURN == -1) {
67 tst_resm(TFAIL | TTERRNO,
68 "setfsgid() failed unexpectedly");
69 continue;
70 }
71
72 if (TEST_RETURN == gid) {
73 tst_resm(TFAIL,
74 "setfsgid() returned %ld, expected anything but %d",
75 TEST_RETURN, gid);
76 } else {
77 tst_resm(TPASS, "setfsgid() returned expected value : "
78 "%ld", TEST_RETURN);
79 }
80 }
81
82 cleanup();
83 tst_exit();
84 }
85
setup(void)86 static void setup(void)
87 {
88 tst_require_root();
89
90 ltpuser = getpwnam(nobody_uid);
91 if (ltpuser == NULL)
92 tst_brkm(TBROK, cleanup, "getpwnam failed for user id %s",
93 nobody_uid);
94
95 if (setuid(ltpuser->pw_uid) == -1)
96 tst_resm(TINFO | TERRNO,
97 "setuid failed to set the effective uid to %d",
98 ltpuser->pw_uid);
99
100 tst_sig(NOFORK, DEF_HANDLER, cleanup);
101
102 TEST_PAUSE;
103 }
104
cleanup(void)105 static void cleanup(void)
106 {
107 }
108