74 lines
2.6 KiB
C
74 lines
2.6 KiB
C
/*
|
|
|
|
File: file_crw.c
|
|
|
|
Copyright (C) 1998-2005,2007-2008 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"
|
|
#include "log.h"
|
|
|
|
static void register_header_check_crw(file_stat_t *file_stat);
|
|
static int header_check_crw(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);
|
|
static void file_check_crw(file_recovery_t *file_recovery);
|
|
|
|
const file_hint_t file_hint_crw= {
|
|
.extension="crw",
|
|
.description="Canon Raw picture",
|
|
.min_header_distance=0,
|
|
.max_filesize=PHOTOREC_MAX_FILE_SIZE,
|
|
.recover=1,
|
|
.enable_by_default=1,
|
|
.register_header_check=®ister_header_check_crw
|
|
};
|
|
|
|
static const unsigned char crw_header_be[2]= {'I','I'};
|
|
static const unsigned char crw_header_le[2]= {'M','M'};
|
|
|
|
static void register_header_check_crw(file_stat_t *file_stat)
|
|
{
|
|
register_header_check(0, crw_header_be, sizeof(crw_header_be), &header_check_crw, file_stat);
|
|
register_header_check(0, crw_header_le, sizeof(crw_header_le), &header_check_crw, file_stat);
|
|
}
|
|
|
|
static int header_check_crw(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)
|
|
{
|
|
if(((buffer[0]==0x49 && buffer[1]==0x49)||(buffer[0]==0x4D && buffer[1]==0x4D))
|
|
&& memcmp(buffer+6,"HEAPCCDR",8)==0)
|
|
{
|
|
reset_file_recovery(file_recovery_new);
|
|
file_recovery_new->extension=file_hint_crw.extension;
|
|
file_recovery_new->file_check=&file_check_crw;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void file_check_crw(file_recovery_t *file_recovery)
|
|
{
|
|
const unsigned char crw_footer[2]= { 0x0A, 0x30};
|
|
file_search_footer(file_recovery, crw_footer, sizeof(crw_footer), 12);
|
|
}
|