72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
|
/*
|
||
|
|
|
||
|
|
File: file_cwk.c
|
||
|
|
|
||
|
|
Copyright (C) 2006-2007 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_cwk(file_stat_t *file_stat);
|
||
|
|
static int header_check_cwk(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_cwk(file_recovery_t *file_recovery);
|
||
|
|
|
||
|
|
const file_hint_t file_hint_cwk= {
|
||
|
|
.extension="cwk",
|
||
|
|
.description="AppleWorks",
|
||
|
|
.min_header_distance=0,
|
||
|
|
.max_filesize=200*1024*1024,
|
||
|
|
.recover=1,
|
||
|
|
.register_header_check=®ister_header_check_cwk
|
||
|
|
};
|
||
|
|
|
||
|
|
static const unsigned char cwk_header[4]= {'B','O','B','O'};
|
||
|
|
|
||
|
|
static void register_header_check_cwk(file_stat_t *file_stat)
|
||
|
|
{
|
||
|
|
register_header_check(4, cwk_header,sizeof(cwk_header), &header_check_cwk, file_stat);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int header_check_cwk(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(memcmp(buffer+4, cwk_header, sizeof(cwk_header))==0)
|
||
|
|
{
|
||
|
|
reset_file_recovery(file_recovery_new);
|
||
|
|
file_recovery_new->extension=file_hint_cwk.extension;
|
||
|
|
file_recovery_new->file_check=&file_check_cwk;
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static void file_check_cwk(file_recovery_t *file_recovery)
|
||
|
|
{
|
||
|
|
const unsigned char cwk_footer[4]= {0xf0, 0xf1, 0xf2, 0xf3};
|
||
|
|
file_search_footer(file_recovery, cwk_footer,sizeof(cwk_footer));
|
||
|
|
if(file_recovery->file_size>0)
|
||
|
|
file_recovery->file_size+=4;
|
||
|
|
}
|