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authorChristophe Grenier <grenier@cgsecurity.org>2009-10-19 22:26:39 +0200
committerChristophe Grenier <grenier@cgsecurity.org>2009-10-19 22:26:39 +0200
commit96b7bc652c596c40bc04104fb537a94b301d96d7 (patch)
treeeecb7cbb172d0b648331145beb30addb2967ad69 /src/file_mat.c
parentb265db85ded21f2066958b9e4148411f546cd6f8 (diff)
PhotoRec: recover Matlab .mat files
Diffstat (limited to 'src/file_mat.c')
-rw-r--r--src/file_mat.c66
1 files changed, 66 insertions, 0 deletions
diff --git a/src/file_mat.c b/src/file_mat.c
new file mode 100644
index 0000000..70dc174
--- /dev/null
+++ b/src/file_mat.c
@@ -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;
+}