68 lines
2.6 KiB
C
68 lines
2.6 KiB
C
/*
|
|
|
|
File: file_ldf.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.
|
|
|
|
*/
|
|
|
|
#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_ldf(file_stat_t *file_stat);
|
|
static int header_check_ldf(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_ldf= {
|
|
.extension="ldf",
|
|
.description="Microsoft SQL Server Log Data File",
|
|
.min_header_distance=0,
|
|
.max_filesize=PHOTOREC_MAX_FILE_SIZE,
|
|
.recover=1,
|
|
.enable_by_default=1,
|
|
.register_header_check=®ister_header_check_ldf
|
|
};
|
|
|
|
static const unsigned char ldf_header[4]= { 0x01, 0x0f, 0x00, 0x00 };
|
|
|
|
static void register_header_check_ldf(file_stat_t *file_stat)
|
|
{
|
|
register_header_check(0, ldf_header,sizeof(ldf_header), &header_check_ldf, file_stat);
|
|
}
|
|
|
|
static int header_check_ldf(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[0x00]==0x01 && buffer[0x01]==0x0f && buffer[0x02]==0x00 && buffer[0x03]==0x00 &&
|
|
buffer[0x08]==0x00 && buffer[0x09]==0x00 && buffer[0x0a]==0x00 && buffer[0x0b]==0x00 &&
|
|
buffer[0x0c]==0x00 && buffer[0x0d]==0x00 && buffer[0x0e]==0x00 && buffer[0x0f]==0x00 &&
|
|
buffer[0x10]==0x00 && buffer[0x11]==0x00 && buffer[0x12]==0x00 && buffer[0x13]==0x00 &&
|
|
buffer[0x14]==0x00 && buffer[0x15]==0x00 && buffer[0x16]==0x02 && buffer[0x17]==0x00 &&
|
|
buffer[0x18]==0x63 && buffer[0x19]==0x00 && buffer[0x1A]==0x00 && buffer[0x1B]==0x00)
|
|
{
|
|
reset_file_recovery(file_recovery_new);
|
|
file_recovery_new->extension=file_hint_ldf.extension;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|