testsuite/nsswitch/getent.c

   1 /* Cut down version of getent which only returns passwd and group database
   2    entries and seems to compile on most systems without too much fuss.
   3    Original copyright notice below. */
   4
   5 /* Copyright (c) 1998, 1999, 2000 Free Software Foundation, Inc.
   6    This file is part of the GNU C Library.
   7    Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998.
   8
   9    The GNU C Library is free software; you can redistribute it and/or
  10    modify it under the terms of the GNU Library General Public License as
  11    published by the Free Software Foundation; either version 2 of the
  12    License, or (at your option) any later version.
  13
  14    The GNU C Library is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17    Library General Public License for more details.
  18
  19    You should have received a copy of the GNU Library General Public
  20    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  21    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  22    Boston, MA 02111-1307, USA. */
  23
  24 #include <stdio.h>
  25 #include <pwd.h>
  26 #include <grp.h>
  27
  28 group_keys (int number, char *key[])
  29 {
  30   int result = 0;
  31   int i;
  32
  33   for (i = 0; i < number; ++i)
  34     {
  35       struct group *grp;
  36
  37       if (isdigit (key[i][0]))
  38         grp = getgrgid (atol (key[i]));
  39       else
  40         grp = getgrnam (key[i]);
  41
  42       if (grp == NULL)
  43         result = 2;
  44       else
  45         print_group (grp);
  46     }
  47
  48   return result;
  49 }
  50
  51 passwd_keys (int number, char *key[])
  52 {
  53   int result = 0;
  54   int i;
  55
  56   for (i = 0; i < number; ++i)
  57     {
  58       struct passwd *pwd;
  59
  60       if (isdigit (key[i][0]))
  61         pwd = getpwuid (atol (key[i]));
  62       else
  63         pwd = getpwnam (key[i]);
  64
  65       if (pwd == NULL)
  66         result = 2;
  67       else
  68         print_passwd (pwd);
  69     }
  70
  71   return result;
  72 }
  73
  74 print_group (struct group *grp)
  75 {
  76   unsigned int i = 0;
  77
  78   printf ("%s:%s:%ld:", grp->gr_name ? grp->gr_name : "",
  79           grp->gr_passwd ? grp->gr_passwd : "",
  80           (unsigned long)grp->gr_gid);
  81
  82   while (grp->gr_mem[i] != NULL)
  83     {
  84       fputs (grp->gr_mem[i], stdout);
  85       ++i;
  86       if (grp->gr_mem[i] != NULL)
  87         fputs (",", stdout);
  88     }
  89   fputs ("\n", stdout);
  90 }
  91
  92 print_passwd (struct passwd *pwd)
  93 {
  94   printf ("%s:%s:%ld:%ld:%s:%s:%s\n",
  95           pwd->pw_name ? pwd->pw_name : "",
  96           pwd->pw_passwd ? pwd->pw_passwd : "",
  97           (unsigned long)pwd->pw_uid,
  98           (unsigned long)pwd->pw_gid,
  99           pwd->pw_gecos ? pwd->pw_gecos : "",
 100           pwd->pw_dir ? pwd->pw_dir : "",
 101           pwd->pw_shell ? pwd->pw_shell : "");
 102 }
 103
 104 int main(int argc, char **argv)
 105 {
 106   switch(argv[1][0])
 107     {
 108     case 'g': /* group */
 109       if (strcmp (argv[1], "group") == 0)
 110         {
 111           if (argc == 2)
 112             {
 113               struct group *grp;
 114
 115               setgrent ();
 116               while ((grp = getgrent()) != NULL)
 117                 print_group (grp);
 118               endgrent ();
 119             }
 120           else
 121             return group_keys (argc - 2, &argv[2]);
 122         }
 123       else
 124         goto error;
 125       break;
 126
 127    case 'p': /* passwd, protocols */
 128       if (strcmp (argv[1], "passwd") == 0)
 129         {
 130           if (argc == 2)
 131             {
 132               struct passwd *pwd;
 133
 134               setpwent ();
 135               while ((pwd = getpwent()) != NULL)
 136                 print_passwd (pwd);
 137               endpwent ();
 138             }
 139           else
 140             return passwd_keys (argc - 2, &argv[2]);
 141         }
 142       else
 143         goto error;
 144       break;
 145     default:
 146     error:
 147       fprintf (stderr, "Unknown database: %s\n", argv[1]);
 148       return 1;
 149     }
 150   return 0;
 151 }