/*
** Copyright (c) 1999, 2000, 2001
** Adel I. Mirzazhanov. All rights reserved
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
** 
**     1.Redistributions of source code must retain the above copyright notice,
**       this list of conditions and the following disclaimer. 
**     2.Redistributions in binary form must reproduce the above copyright
**       notice, this list of conditions and the following disclaimer in the
**       documentation and/or other materials provided with the distribution. 
**     3.The name of the author may not be used to endorse or promote products
**       derived from this software without specific prior written permission. 
** 		  
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR  ``AS IS'' AND ANY EXPRESS
** OR IMPLIED WARRANTIES, INCLUDING,  BUT NOT LIMITED TO, THE IMPLIED
** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
** ARE DISCLAIMED.  IN  NO  EVENT  SHALL THE AUTHOR BE LIABLE FOR ANY
** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
** DAMAGES (INCLUDING, BUT NOT LIMITED TO,  PROCUREMENT OF SUBSTITUTE
** GOODS OR SERVICES;  LOSS OF USE,  DATA,  OR  PROFITS;  OR BUSINESS
** INTERRUPTION)  HOWEVER  CAUSED  AND  ON  ANY  THEORY OF LIABILITY,
** WHETHER  IN  CONTRACT,   STRICT   LIABILITY,  OR  TORT  (INCLUDING
** NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

/*
** restrict.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "restrict.h"

/*
** Routine that checks if password exist in dictionary
** RETURN -1 - error 
**         1 - password exist in dictionary
**         0 - password does not exist in dictionary 
*/
int
check_pass(char *pass, char *dict)
{
 FILE *dct;
 char *string;
 string = (char *) calloc(1,MAX_DICT_STRING_SIZE);
 
 /*
 ** Open dict file an report of error
 */
 if ( (dct = fopen(dict,"r")) == NULL)
   return(-1);

 while ((fgets(string, MAX_DICT_STRING_SIZE, dct) != NULL))
  {
   string = strtok (string," \t\n\0");
   if(strlen(string) != strlen(pass)) continue;
   else if (strncmp(string, pass, strlen(pass)) == 0) return (1);
  }
 free ( (void *)string);
 fclose (dct);
 return (0); 
}