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authorChristophe Grenier <grenier@cgsecurity.org>2019-08-27 07:55:59 +0200
committerChristophe Grenier <grenier@cgsecurity.org>2019-08-27 07:55:59 +0200
commitb9fa9df75679d9c2e8512cf62a55225fdabc9c44 (patch)
tree4ae3ef6fb94eef9f9b0d90992df106dddf64ab9b /src
parent0c60e3015477fd52e67adfa8e6a9e7be39eb40e5 (diff)
PhotoRec: recover OpenEXR v2 .exr files
Diffstat (limited to 'src')
-rw-r--r--src/Makefile.am1
-rw-r--r--src/file_exr.c58
-rw-r--r--src/file_list.c2
3 files changed, 61 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index f49f2ae..a7c2a2b 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -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 \
diff --git a/src/file_exr.c b/src/file_exr.c
new file mode 100644
index 0000000..f0df6ba
--- /dev/null
+++ b/src/file_exr.c
@@ -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);
+}
diff --git a/src/file_list.c b/src/file_list.c
index 0cbad05..f706680 100644
--- a/src/file_list.c
+++ b/src/file_list.c
@@ -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 },