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
41 static char host[MAXHOSTNAMELEN];
42
43 static const char hosts[][MAXHOSTNAMELEN] = {
44 "1234567890",
45 "abcdefghijklmnopqrst",
46 "!#\xa4%&/(..xasS812=!=!(I(!;X;;X.as.dasa=?;,..<>|**^\xa8",
47 "--------------------------------------------------------------------"
48 };
49
50 ATF_TC_WITH_CLEANUP(sethostname_basic);
ATF_TC_HEAD(sethostname_basic,tc)51 ATF_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
ATF_TC_BODY(sethostname_basic,tc)57 ATF_TC_BODY(sethostname_basic, tc)
58 {
59 char name[MAXHOSTNAMELEN];
60 size_t i;
61
62 atf_tc_skip("screws up the test host's hostname on FreeBSD");
63
64 for (i = 0; i < __arraycount(hosts); i++) {
65
66 (void)memset(name, 0, sizeof(name));
67
68 #ifdef __FreeBSD__
69 /*
70 * Sanity checks to ensure that the wrong invariant isn't being
71 * tested for per PR # 181127
72 */
73 ATF_REQUIRE_EQ(sizeof(hosts[i]), MAXHOSTNAMELEN);
74 ATF_REQUIRE_EQ(sizeof(name), MAXHOSTNAMELEN);
75
76 ATF_REQUIRE(sethostname(hosts[i], sizeof(hosts[i]) - 1) == 0);
77 ATF_REQUIRE(gethostname(name, sizeof(name) - 1) == 0);
78 #else
79 ATF_REQUIRE(sethostname(hosts[i], sizeof(hosts[i])) == 0);
80 ATF_REQUIRE(gethostname(name, sizeof(name)) == 0);
81 #endif
82 ATF_REQUIRE(strcmp(hosts[i], name) == 0);
83 }
84
85 (void)sethostname(host, sizeof(host));
86 }
87
ATF_TC_CLEANUP(sethostname_basic,tc)88 ATF_TC_CLEANUP(sethostname_basic, tc)
89 {
90 (void)sethostname(host, sizeof(host));
91 }
92
93 ATF_TC_WITH_CLEANUP(sethostname_limit);
ATF_TC_HEAD(sethostname_limit,tc)94 ATF_TC_HEAD(sethostname_limit, tc)
95 {
96 atf_tc_set_md_var(tc, "descr", "Too long host name errors out?");
97 atf_tc_set_md_var(tc, "require.user", "root");
98 }
99
ATF_TC_BODY(sethostname_limit,tc)100 ATF_TC_BODY(sethostname_limit, tc)
101 {
102 char name[MAXHOSTNAMELEN + 1];
103
104 (void)memset(name, 0, sizeof(name));
105
106 ATF_REQUIRE(sethostname(name, sizeof(name)) == -1);
107 }
108
ATF_TC_CLEANUP(sethostname_limit,tc)109 ATF_TC_CLEANUP(sethostname_limit, tc)
110 {
111 #ifdef __FreeBSD__
112 ATF_REQUIRE(sethostname(host, MAXHOSTNAMELEN - 1 ) == 0);
113 ATF_REQUIRE(sethostname(host, MAXHOSTNAMELEN) == -1);
114 #endif
115 (void)sethostname(host, sizeof(host));
116 }
117
118 ATF_TC_WITH_CLEANUP(sethostname_perm);
ATF_TC_HEAD(sethostname_perm,tc)119 ATF_TC_HEAD(sethostname_perm, tc)
120 {
121 atf_tc_set_md_var(tc, "descr", "Can normal user set the host name?");
122 atf_tc_set_md_var(tc, "require.user", "unprivileged");
123 }
124
ATF_TC_BODY(sethostname_perm,tc)125 ATF_TC_BODY(sethostname_perm, tc)
126 {
127
128 errno = 0;
129
130 ATF_REQUIRE_ERRNO(EPERM, sethostname(host, sizeof(host)) == -1);
131 }
132
ATF_TC_CLEANUP(sethostname_perm,tc)133 ATF_TC_CLEANUP(sethostname_perm, tc)
134 {
135 (void)sethostname(host, sizeof(host));
136 }
137
ATF_TP_ADD_TCS(tp)138 ATF_TP_ADD_TCS(tp)
139 {
140
141 (void)memset(host, 0, sizeof(host));
142
143 ATF_REQUIRE(gethostname(host, sizeof(host)) == 0);
144
145 ATF_TP_ADD_TC(tp, sethostname_basic);
146 ATF_TP_ADD_TC(tp, sethostname_limit);
147 ATF_TP_ADD_TC(tp, sethostname_perm);
148
149 return atf_no_error();
150 }
151