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PhotoRec: recover Matlab .mat files

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This commit is contained in:
Christophe Grenier 2009-10-19 22:26:39 +02:00
parent b265db85de
commit 96b7bc652c
3 changed files with 69 additions and 0 deletions
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1
src/Makefile.am
View file

@ -122,6 +122,7 @@ file_C = filegen.c \
file_lnk.c \
file_logic.c \
file_m2ts.c \
file_mat.c \
file_max.c \
file_mb.c \
file_mcd.c \

2
src/file_list.c
View file

@ -125,6 +125,7 @@ extern const file_hint_t file_hint_ldf;
extern const file_hint_t file_hint_logic;
extern const file_hint_t file_hint_lnk;
extern const file_hint_t file_hint_m2ts;
extern const file_hint_t file_hint_mat;
extern const file_hint_t file_hint_max;
extern const file_hint_t file_hint_mb;
extern const file_hint_t file_hint_mcd;
@ -317,6 +318,7 @@ file_enable_t list_file_enable[]=
{ .enable=0, .file_hint=&file_hint_logic},
{ .enable=0, .file_hint=&file_hint_lnk },
{ .enable=0, .file_hint=&file_hint_m2ts },
{ .enable=0, .file_hint=&file_hint_mat },
{ .enable=0, .file_hint=&file_hint_max },
{ .enable=0, .file_hint=&file_hint_mb },
{ .enable=0, .file_hint=&file_hint_mcd },

66
src/file_mat.c Normal file
View file

@ -0,0 +1,66 @@
/*
File: file_mat.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_mat(file_stat_t *file_stat);
static int header_check_mat(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_mat= {
.extension="mat",
.description="Mathlab",
.min_header_distance=0,
.max_filesize=10*1024*1024,
.recover=1,
.enable_by_default=1,
.register_header_check=&register_header_check_mat
};
static const unsigned char mat_header[7]= {'M', 'A', 'T', 'L', 'A', 'B', ' '};
static void register_header_check_mat(file_stat_t *file_stat)
{
register_header_check(0, mat_header,sizeof(mat_header), &header_check_mat, file_stat);
}
static int header_check_mat(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 unsigned char mat_le[4]={0x00, 0x01, 'I', 'M'};
const unsigned char mat_be[4]={0x01, 0x00, 'M', 'I'};
if(memcmp(buffer,mat_header,sizeof(mat_header))==0 &&
(memcmp(&buffer[0x7c], mat_le, sizeof(mat_le))==0 ||
memcmp(&buffer[0x7c], mat_be, sizeof(mat_be))==0))
{
reset_file_recovery(file_recovery_new);
file_recovery_new->extension=file_hint_mat.extension;
return 1;
}
return 0;
}