/*
   spacemaze - Fly a space ship through a maze and collect all the items.
   Copyright (C) 2000, 2001, 2002 John Ericson

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

   2000-08-08 High / John Ericson john.ericson@home.se
*/

#include <stdio.h>
#include <string.h>
#include <errno.h>

#include "getfile.h"

/* Check if file exist. If it exist returns 1, if not 0
*/
int fileexist(const char *filename) {

   FILE *f;

   if ((f = fopen(filename, "r")) == NULL) {
      if (errno != 0)
         return 0;
   }
   return 1;
}

/* Check through all the directories in dirs for filename and if filename
   exist, save the complete path to filename (dirs+filename) in rt_file.
   return 1 on success and 0 on failure.
*/
int getfile(const char *dirs[], const char *filename, char *rt_file) {

   char file[255];
   int i;

   for (i = 0;; i++) {
      if (dirs[i] == NULL) {
         rt_file = NULL;
         return 0;
      }
      sprintf(file, "%s%s", dirs[i], filename);
      if (fileexist(file)) {
         strcpy(rt_file, file);
         return 1;
      }
   }
}