tests/lib/libc/gen/t_getgrent.c

   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
  68 ATF_TC(getgrent_loop);
  69 ATF_TC_HEAD(getgrent_loop, tc)
  70 {
  71         atf_tc_set_md_var(tc, "descr", "Test sequential getgrent(2)");
  72 }
  73
  74 ATF_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
 117 ATF_TC(getgrent_setgid);
 118 ATF_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
 124 ATF_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
 170 fail:
 171         atf_tc_fail("group database is inconsistent");
 172 }
 173
 174 ATF_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 }