/*

    File: file_raw.c

    Copyright (C) 1998-2007 Christophe GRENIER <grenier@cgsecurity.org>
  
    This software 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 the Free Software Foundation, Inc., 51
    Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_STRING_H
#include <string.h>
#endif
#include <stdio.h>
#include "types.h"
#include "filegen.h"


static void register_header_check_raw(file_stat_t *file_stat);
static int header_check_raw(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new);

const file_hint_t file_hint_raw= {
  .extension="raw",	/* What is the correct extension ? */
  .description="Contax picture, Panasonic/Leica RAW",
  .min_header_distance=0,
  .max_filesize=PHOTOREC_MAX_FILE_SIZE,
  .recover=1,
  .header_check=&header_check_raw,
  .register_header_check=&register_header_check_raw
};

static const unsigned char raw_header_contax[7]= {'A','R','E','C','O','Y','K'};
static const unsigned char raw_header_panasonic[4]= {'I','I','U','\0'};

static void register_header_check_raw(file_stat_t *file_stat)
{
  register_header_check(25, raw_header_contax,sizeof(raw_header_contax), &header_check_raw, file_stat);
  register_header_check(0, raw_header_panasonic,sizeof(raw_header_panasonic), &header_check_raw, file_stat);
}

static int header_check_raw(const unsigned char *buffer, const unsigned int buffer_size, const unsigned int safe_header_only, const file_recovery_t *file_recovery, file_recovery_t *file_recovery_new)
{
  /* Contax Kyocera */
  if(memcmp (buffer+25, raw_header_contax, 7)==0)
  {
    reset_file_recovery(file_recovery_new);
    file_recovery_new->extension=file_hint_raw.extension;
    return 1;
  }
  /* Panasonic/Leica */
  if(memcmp(buffer, raw_header_panasonic, sizeof(raw_header_panasonic))==0)
  {
    reset_file_recovery(file_recovery_new);
    file_recovery_new->extension="raw";
    return 1;
  }
  return 0;
}