1/*	$NetBSD: t_getgrent.c,v 1.2 2011/05/11 19:06:45 njoly Exp $ */
2
3/*-
4 * Copyright (c) 2011 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Jukka Ruohonen.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32/*
33 * Copyright (c) 2009, Stathis Kamperis
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 * 1. Redistributions of source code must retain the above copyright
40 *    notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce the above copyright
42 *    notice, this list of conditions and the following disclaimer in the
43 *    documentation and/or other materials provided with the distribution.
44 *
45 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
46 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
47 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
48 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
49 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
50 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
51 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
52 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
53 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
54 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
55 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56 * SUCH DAMAGE.
57 */
58#include <sys/cdefs.h>
59__RCSID("$NetBSD: t_getgrent.c,v 1.2 2011/05/11 19:06:45 njoly Exp $");
60
61#include <sys/wait.h>
62
63#include <atf-c.h>
64#include <grp.h>
65#include <stdlib.h>
66#include <unistd.h>
67
68ATF_TC(getgrent_loop);
69ATF_TC_HEAD(getgrent_loop, tc)
70{
71	atf_tc_set_md_var(tc, "descr", "Test sequential getgrent(2)");
72}
73
74ATF_TC_BODY(getgrent_loop, tc)
75{
76	struct group *gr;
77	size_t i, j;
78
79	/*
80	 * Loop over the group database. The first
81	 * call returns the first entry and subsequent
82	 * calls return the rest of the entries.
83	 */
84	i = j = 0;
85
86	while((gr = getgrent()) != NULL)
87		i++;
88
89	/*
90	 * Rewind the database to the beginning
91	 * and loop over again until the end.
92	 */
93	setgrent();
94
95        while((gr = getgrent()) != NULL)
96		j++;
97
98	if (i != j)
99		atf_tc_fail("sequential getgrent(3) failed");
100
101	/*
102	 * Close the database and reopen it.
103	 * The getgrent(3) call should always
104	 * automatically rewind the database.
105	 */
106	endgrent();
107
108        j = 0;
109
110        while((gr = getgrent()) != NULL)
111                j++;
112
113	if (i != j)
114		atf_tc_fail("getgrent(3) did not rewind");
115}
116
117ATF_TC(getgrent_setgid);
118ATF_TC_HEAD(getgrent_setgid, tc)
119{
120	atf_tc_set_md_var(tc, "descr", "Test consistency of the group db");
121	atf_tc_set_md_var(tc, "require.user", "root");
122}
123
124ATF_TC_BODY(getgrent_setgid, tc)
125{
126	struct group *gr, *gr1, *gr2;
127	int rv, sta;
128	pid_t pid;
129
130	/*
131	 * Verify that the database is consistent.
132	 *
133	 * Note that because of the static buffers
134	 * used by getgrent(3), fork(2) is required,
135	 * even without the setgid(2) check.
136	 */
137        while((gr = getgrent()) != NULL) {
138
139		pid = fork();
140		ATF_REQUIRE(pid >= 0);
141
142		if (pid == 0) {
143
144			gr1 = getgrgid(gr->gr_gid);
145
146			if (gr1 == NULL)
147				_exit(EXIT_FAILURE);
148
149			gr2 = getgrnam(gr->gr_name);
150
151			if (gr2 == NULL)
152				_exit(EXIT_FAILURE);
153
154			rv = setgid(gr->gr_gid);
155
156			if (rv != 0)
157				_exit(EXIT_FAILURE);
158
159			_exit(EXIT_SUCCESS);
160		}
161
162		(void)wait(&sta);
163
164		if (WIFEXITED(sta) == 0 || WEXITSTATUS(sta) != EXIT_SUCCESS)
165			goto fail;
166	}
167
168	return;
169
170fail:
171	atf_tc_fail("group database is inconsistent");
172}
173
174ATF_TP_ADD_TCS(tp)
175{
176
177	ATF_TP_ADD_TC(tp, getgrent_loop);
178	ATF_TP_ADD_TC(tp, getgrent_setgid);
179
180	return atf_no_error();
181}
182