t_sethostname.c revision 272905 
1/* $NetBSD: t_sethostname.c,v 1.3 2012/03/25 08:17:54 joerg 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#include <sys/cdefs.h>
32__RCSID("$NetBSD: t_sethostname.c,v 1.3 2012/03/25 08:17:54 joerg Exp $");
33
34#include <sys/param.h>
35
36#include <atf-c.h>
37#include <errno.h>
38#include <string.h>
39#include <unistd.h>
40
41static char host[MAXHOSTNAMELEN];
42
43static const char hosts[][MAXHOSTNAMELEN] = {
44	"1234567890",
45	"abcdefghijklmnopqrst",
46	"!#\xa4%&/(..xasS812=!=!(I(!;X;;X.as.dasa=?;,..<>|**^\xa8",
47	"--------------------------------------------------------------------"
48};
49
50ATF_TC_WITH_CLEANUP(sethostname_basic);
51ATF_TC_HEAD(sethostname_basic, tc)
52{
53	atf_tc_set_md_var(tc, "descr", "A basic test of sethostname(3)");
54	atf_tc_set_md_var(tc, "require.user", "root");
55}
56
57ATF_TC_BODY(sethostname_basic, tc)
58{
59	char name[MAXHOSTNAMELEN];
60	size_t i;
61
62	for (i = 0; i < __arraycount(hosts); i++) {
63
64		(void)memset(name, 0, sizeof(name));
65
66#if defined(__FreeBSD__)
67		/*
68		 * Sanity checks to ensure that the wrong invariant isn't being
69		 * tested for per PR # 181127
70		 */
71		ATF_REQUIRE_EQ(sizeof(hosts[i]), MAXHOSTNAMELEN);
72		ATF_REQUIRE_EQ(sizeof(name), MAXHOSTNAMELEN);
73
74		ATF_REQUIRE(sethostname(hosts[i], sizeof(hosts[i]) - 1) == 0);
75		ATF_REQUIRE(gethostname(name, sizeof(name) - 1) == 0);
76#else
77		ATF_REQUIRE(sethostname(hosts[i], sizeof(hosts[i])) == 0);
78		ATF_REQUIRE(gethostname(name, sizeof(name)) == 0);
79#endif
80		ATF_REQUIRE(strcmp(hosts[i], name) == 0);
81	}
82
83	(void)sethostname(host, sizeof(host));
84}
85
86ATF_TC_CLEANUP(sethostname_basic, tc)
87{
88	(void)sethostname(host, sizeof(host));
89}
90
91ATF_TC_WITH_CLEANUP(sethostname_limit);
92ATF_TC_HEAD(sethostname_limit, tc)
93{
94	atf_tc_set_md_var(tc, "descr", "Too long host name errors out?");
95	atf_tc_set_md_var(tc, "require.user", "root");
96}
97
98ATF_TC_BODY(sethostname_limit, tc)
99{
100	char name[MAXHOSTNAMELEN + 1];
101
102	(void)memset(name, 0, sizeof(name));
103
104	ATF_REQUIRE(sethostname(name, sizeof(name)) == -1);
105}
106
107ATF_TC_CLEANUP(sethostname_limit, tc)
108{
109#if defined(__FreeBSD__)
110	ATF_REQUIRE(sethostname(host, MAXHOSTNAMELEN - 1 ) == 0);
111	ATF_REQUIRE(sethostname(host, MAXHOSTNAMELEN) == -1);
112#endif
113	(void)sethostname(host, sizeof(host));
114}
115
116ATF_TC_WITH_CLEANUP(sethostname_perm);
117ATF_TC_HEAD(sethostname_perm, tc)
118{
119	atf_tc_set_md_var(tc, "descr", "Can normal user set the host name?");
120	atf_tc_set_md_var(tc, "require.user", "unprivileged");
121}
122
123ATF_TC_BODY(sethostname_perm, tc)
124{
125
126	errno = 0;
127
128	ATF_REQUIRE_ERRNO(EPERM, sethostname(host, sizeof(host)) == -1);
129}
130
131ATF_TC_CLEANUP(sethostname_perm, tc)
132{
133	(void)sethostname(host, sizeof(host));
134}
135
136ATF_TP_ADD_TCS(tp)
137{
138
139	(void)memset(host, 0, sizeof(host));
140
141	ATF_REQUIRE(gethostname(host, sizeof(host)) == 0);
142
143	ATF_TP_ADD_TC(tp, sethostname_basic);
144	ATF_TP_ADD_TC(tp, sethostname_limit);
145	ATF_TP_ADD_TC(tp, sethostname_perm);
146
147	return atf_no_error();
148}
149