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 * ALGORITHM
22 *	As root sets the current group id to ltpuser1, verify the results
23 */
24#include <pwd.h>
25#include <errno.h>
26
27#include "test.h"
28#include <compat_16.h>
29
30TCID_DEFINE(setgid03);
31int TST_TOTAL = 1;
32
33static char ltpuser1[] = "nobody";
34static char root[] = "root";
35static struct passwd *ltpuser1pwent, *rootpwent;
36static gid_t mygid;
37
38static void setup(void);
39static void cleanup(void);
40
41int main(int ac, char **av)
42{
43	int lc;
44
45	tst_parse_opts(ac, av, NULL, NULL);
46
47	setup();
48
49	for (lc = 0; TEST_LOOPING(lc); lc++) {
50		tst_count = 0;
51
52		TEST(SETGID(cleanup, ltpuser1pwent->pw_gid));
53
54		if (TEST_RETURN == -1) {
55			tst_resm(TFAIL, "call failed unexpectedly");
56			continue;
57		}
58
59		if (getgid() != ltpuser1pwent->pw_gid) {
60			tst_resm(TFAIL, "setgid failed to set gid to "
61				 "ltpuser1's gid");
62		} else {
63			tst_resm(TPASS, "functionality of getgid() is correct");
64		}
65	}
66
67	cleanup();
68	tst_exit();
69}
70
71static void setup(void)
72{
73	tst_require_root();
74
75	tst_sig(NOFORK, DEF_HANDLER, cleanup);
76
77	TEST_PAUSE;
78
79	if ((rootpwent = getpwnam(root)) == NULL) {
80		tst_brkm(TBROK, cleanup, "getpwnam failed for "
81			 "user id %s", root);
82	}
83
84	mygid = getgid();
85
86	if (mygid != rootpwent->pw_gid) {
87		tst_brkm(TBROK, cleanup, "real group id is not root");
88	}
89
90	if ((ltpuser1pwent = getpwnam(ltpuser1)) == NULL) {
91		tst_brkm(TBROK, cleanup, "getpwnam failed for user "
92			 "id %s", ltpuser1);
93	}
94
95	GID16_CHECK(ltpuser1pwent->pw_gid, setgid, cleanup);
96}
97
98static void cleanup(void)
99{
100}
101