helpers/external_acl/ip_user/main.c

   1 /* $Id: main.c,v 1.3 2003/01/23 00:36:01 robertc Exp $
   2 * Copyright (C) 2002 Rodrigo Campos
   3 *
   4 * This program is free software; you can redistribute it and/or modify
   5 * it under the terms of the GNU General Public License as published by
   6 * the Free Software Foundation; either version 2 of the License, or
   7 * (at your option) any later version.
   8 *
   9 * This program is distributed in the hope that it will be useful,
  10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 * GNU General Public License for more details.
  13 *
  14 * You should have received a copy of the GNU General Public License
  15 * along with this program; if not, write to the Free Software
  16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17 *
  18 * Author: Rodrigo Campos (rodrigo@geekbunker.org)
  19 *
  20 */
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24 #include <string.h>
  25
  26
  27 #include "ip_user.h"
  28
  29
  30 void
  31 usage (char *program_name)
  32 {
  33   fprintf (stderr, "Usage:\n%s -f <configuration file>\n",
  34            program_name);
  35 }
  36
  37 int
  38 main (int argc, char *argv[])
  39 {
  40   FILE *FH;
  41   char *filename = NULL;
  42   char *program_name = argv[0];
  43   char *cp;
  44   char *username, *address;
  45   char line[BUFSIZE];
  46   struct ip_user_dict *current_entry;
  47   int ch;
  48
  49   setvbuf (stdout, NULL, _IOLBF, 0);
  50   while ((ch = getopt (argc, argv, "f:")) != -1) {
  51     switch (ch) {
  52     case 'f':
  53       filename = optarg;
  54       break;
  55     default:
  56       usage (program_name);
  57       exit (1);
  58     }
  59   }
  60   if (filename == NULL) {
  61     usage (program_name);
  62         exit(1);
  63   }
  64   FH = fopen (filename, "r");
  65   current_entry = load_dict (FH);
  66
  67   while (fgets (line, sizeof (line), stdin)) {
  68     if ((cp = strchr (line, '\n')) != NULL) {
  69       *cp = '\0';
  70     }
  71     if ((cp = strtok (line, " \t")) != NULL) {
  72       address = cp;
  73       username = strtok (NULL, " \t");
  74     } else {
  75       fprintf (stderr, "helper: unable to read tokens\n");
  76       printf ("ERR\n");
  77       continue;
  78     }
  79 #ifdef DEBUG
  80     printf ("result: %d\n",
  81             dict_lookup (current_entry, username, address));
  82 #endif
  83     if ((dict_lookup (current_entry, username, address)) != 0) {
  84       printf ("OK\n");
  85     } else {
  86       printf ("ERR\n");
  87     }
  88
  89
  90   }
  91
  92
  93   fclose (FH);
  94   return 0;
  95 }