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PhotoRec: recover OpenEXR v2 .exr files

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This commit is contained in:
Christophe Grenier 2019-08-27 07:55:59 +02:00
parent 0c60e30154
commit b9fa9df756
3 changed files with 61 additions and 0 deletions
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1
src/Makefile.am
View file

@ -122,6 +122,7 @@ file_C = filegen.c \
file_evt.c \
file_evtx.c \
file_exe.c \
file_exr.c \
file_exs.c \
file_ext.c \
file_ext2.c \

58
src/file_exr.c Normal file
View file

@ -0,0 +1,58 @@
/*
File: file_exr.c
Copyright (C) 2019 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_exr(file_stat_t *file_stat);
const file_hint_t file_hint_exr= {
.extension="exr",
.description="OpenEXR",
.max_filesize=PHOTOREC_MAX_FILE_SIZE,
.recover=1,
.enable_by_default=1,
.register_header_check=&register_header_check_exr
};
/* https://www.openexr.com/documentation/openexrfilelayout.pdf */
static int header_check_exr(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)
{
reset_file_recovery(file_recovery_new);
file_recovery_new->extension=file_hint_exr.extension;
file_recovery_new->min_filesize=0x20;
return 1;
}
static void register_header_check_exr(file_stat_t *file_stat)
{
/* OpenEXR v2 */
static const unsigned char exr_header[5]= { 'v' , 0x2f, '1' , 0x01, 0x02 };
register_header_check(0, exr_header, sizeof(exr_header), &header_check_exr, file_stat);
}

2
src/file_list.c
View file

@ -123,6 +123,7 @@ extern const file_hint_t file_hint_ess;
extern const file_hint_t file_hint_evt;
extern const file_hint_t file_hint_evtx;
extern const file_hint_t file_hint_exe;
extern const file_hint_t file_hint_exr;
extern const file_hint_t file_hint_exs;
extern const file_hint_t file_hint_ext2_sb;
extern const file_hint_t file_hint_ext2_fs;
@ -461,6 +462,7 @@ file_enable_t list_file_enable[]=
{ .enable=0, .file_hint=&file_hint_evt },
{ .enable=0, .file_hint=&file_hint_evtx },
{ .enable=0, .file_hint=&file_hint_exe },
{ .enable=0, .file_hint=&file_hint_exr },
{ .enable=0, .file_hint=&file_hint_exs },
{ .enable=0, .file_hint=&file_hint_ext2_sb },
{ .enable=0, .file_hint=&file_hint_ext2_fs },