src/tests/test-setgroups.c

   1 /*
   2  * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include <config.h>
  36 #endif
  37
  38 #include <grp.h>
  39 #include <stdio.h>
  40 #include <sys/types.h>
  41 #include <sys/param.h>
  42 #include <unistd.h>
  43 #include <pwd.h>
  44 #include <limits.h>
  45
  46 #include <afs/stds.h>
  47 #include <afs/sys_prototypes.h>
  48
  49 #include <err.h>
  50
  51 #if !defined(NGROUPS) && defined(NGROUPS_MAX)
  52 #define NGROUPS NGROUPS_MAX
  53 #endif
  54
  55 static void
  56 print_groups(int ngroups, gid_t groups[NGROUPS])
  57 {
  58     int i;
  59
  60     printf("groups: ");
  61     for (i = 0; i < ngroups; ++i)
  62         printf("%d%s", groups[i], (i < ngroups - 1) ? ", " : "");
  63     printf("\n");
  64 }
  65
  66 int
  67 main(int argc, char **argv)
  68 {
  69     char *user;
  70     char *this_user;
  71     struct passwd *this_pwd, *pwd;
  72     int ret;
  73     gid_t groups[NGROUPS];
  74     int ngroups;
  75     gid_t pag0, pag1, pag2;
  76
  77
  78     if (argc != 2)
  79         errx(1, "Usage: %s user", argv[0]);
  80     user = argv[1];
  81
  82     this_pwd = getpwuid(getuid());
  83     if (this_pwd == NULL)
  84         errx(1, "Who are you?");
  85     this_user = strdup(this_pwd->pw_name);
  86
  87     pwd = getpwnam(user);
  88     if (pwd == NULL)
  89         errx(1, "User %s not found", user);
  90
  91     ngroups = getgroups(NGROUPS, groups);
  92     if (ngroups < 0)
  93         err(1, "getgroups %d", NGROUPS);
  94     printf("user %s ", this_user);
  95     print_groups(ngroups, groups);
  96     printf("doing setpag()\n");
  97     ret = setpag();
  98     if (ret < 0)
  99         err(1, "setpag");
 100
 101     ngroups = getgroups(NGROUPS, groups);
 102     if (ngroups < 0)
 103         err(1, "getgroups %d", NGROUPS);
 104     pag0 = groups[0];
 105     pag1 = groups[1];
 106     pag2 = groups[2];
 107     printf("user %s ", this_user);
 108     print_groups(ngroups, groups);
 109
 110     ret = initgroups(user, pwd->pw_gid);
 111     if (ret < 0)
 112         err(1, "initgroups");
 113
 114     ngroups = getgroups(NGROUPS, groups);
 115     if (ngroups < 0)
 116         err(1, "getgroups %d", NGROUPS);
 117     printf("user %s ", user);
 118     print_groups(ngroups, groups);
 119     if ((groups[0] == pag0 && groups[1] == pag1)
 120         || (groups[1] == pag1 && groups[2] == pag2))
 121         return 0;
 122     else
 123         return 1;
 124 }