tests/lib/libc/gen/t_sethostname.c

   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);
  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
  57 ATF_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                 ATF_REQUIRE(sethostname(hosts[i], sizeof(hosts[i])) == 0);
  67                 ATF_REQUIRE(gethostname(name, sizeof(name)) == 0);
  68                 ATF_REQUIRE(strcmp(hosts[i], name) == 0);
  69         }
  70
  71         (void)sethostname(host, sizeof(host));
  72 }
  73
  74 ATF_TC_CLEANUP(sethostname_basic, tc)
  75 {
  76         (void)sethostname(host, sizeof(host));
  77 }
  78
  79 ATF_TC_WITH_CLEANUP(sethostname_limit);
  80 ATF_TC_HEAD(sethostname_limit, tc)
  81 {
  82         atf_tc_set_md_var(tc, "descr", "Too long host name errors out?");
  83         atf_tc_set_md_var(tc, "require.user", "root");
  84 }
  85
  86 ATF_TC_BODY(sethostname_limit, tc)
  87 {
  88         char name[MAXHOSTNAMELEN + 1];
  89
  90         (void)memset(name, 0, sizeof(name));
  91
  92         ATF_REQUIRE(sethostname(name, sizeof(name)) == -1);
  93 }
  94
  95 ATF_TC_CLEANUP(sethostname_limit, tc)
  96 {
  97         (void)sethostname(host, sizeof(host));
  98 }
  99
 100 ATF_TC_WITH_CLEANUP(sethostname_perm);
 101 ATF_TC_HEAD(sethostname_perm, tc)
 102 {
 103         atf_tc_set_md_var(tc, "descr", "Can normal user set the host name?");
 104         atf_tc_set_md_var(tc, "require.user", "unprivileged");
 105 }
 106
 107 ATF_TC_BODY(sethostname_perm, tc)
 108 {
 109
 110         errno = 0;
 111
 112         ATF_REQUIRE_ERRNO(EPERM, sethostname(host, sizeof(host)) == -1);
 113 }
 114
 115 ATF_TC_CLEANUP(sethostname_perm, tc)
 116 {
 117         (void)sethostname(host, sizeof(host));
 118 }
 119
 120 ATF_TP_ADD_TCS(tp)
 121 {
 122
 123         (void)memset(host, 0, sizeof(host));
 124
 125         ATF_REQUIRE(gethostname(host, sizeof(host)) == 0);
 126
 127         ATF_TP_ADD_TC(tp, sethostname_basic);
 128         ATF_TP_ADD_TC(tp, sethostname_limit);
 129         ATF_TP_ADD_TC(tp, sethostname_perm);
 130
 131         return atf_no_error();
 132 }