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/*
File: file_wdp.c
Copyright (C) 2009 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.
*/
#if !defined(SINGLE_FORMAT) || defined(SINGLE_FORMAT_wdp)
#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"
#include "file_tiff.h"
#include "common.h"
/*@ requires \valid(file_stat); */
static void register_header_check_wdp(file_stat_t *file_stat);
static int header_check_wdp(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_wdp = {
.extension = "wdp",
.description = "JPEG XR",
.max_filesize = PHOTOREC_MAX_FILE_SIZE,
.recover = 1,
.enable_by_default = 1,
.register_header_check = ®ister_header_check_wdp
};
/*@
@ requires buffer_size >= sizeof(TIFFHeader);
@ requires \valid_read(buffer+(0..buffer_size-1));
@ requires valid_file_recovery(file_recovery);
@ requires \valid(file_recovery_new);
@ requires file_recovery_new->blocksize > 0;
@ requires separation: \separated(&file_hint_wdp, buffer+(..), file_recovery, file_recovery_new);
@ ensures \result == 0 || \result == 1;
@ ensures \result!=0 ==> valid_file_recovery(file_recovery_new);
@ assigns *file_recovery_new;
@*/
static int header_check_wdp(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 TIFFHeader *header = (const TIFFHeader *)buffer;
if(le32(header->tiff_diroff) < sizeof(TIFFHeader))
return 0;
reset_file_recovery(file_recovery_new);
file_recovery_new->extension = "wdp";
file_recovery_new->time = get_date_from_tiff_header(buffer, buffer_size);
file_recovery_new->file_check = &file_check_tiff_le;
return 1;
}
static void register_header_check_wdp(file_stat_t *file_stat)
{
static const unsigned char wdp_header[4] = { 'I', 'I', 0xbc, 0x01 };
register_header_check(0, wdp_header, sizeof(wdp_header), &header_check_wdp, file_stat);
}
#endif
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