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authorChristophe Grenier <grenier@cgsecurity.org>2008-08-14 19:25:14 +0200
committerChristophe Grenier <grenier@cgsecurity.org>2008-08-14 19:25:14 +0200
commitf74f632b2ca913d163eef5bfcb7b23d22c7873a3 (patch)
treedefd48d54b8b51ee91754a6684005ad90cb4d12a /src/file_compress.c
parent0573cee26d55f926a2318c6627c07d27f5339ebd (diff)
PhotoRec: recover MS compress file (SZDD)
Diffstat (limited to 'src/file_compress.c')
-rw-r--r--src/file_compress.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/src/file_compress.c b/src/file_compress.c
new file mode 100644
index 0000000..5edb65f
--- /dev/null
+++ b/src/file_compress.c
@@ -0,0 +1,63 @@
+/*
+
+ File: file_compress.c
+
+ Copyright (C) 2008 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"
+#include "memmem.h"
+
+static void register_header_check_compress(file_stat_t *file_stat);
+static int header_check_compress(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_compress= {
+ .extension="cp_",
+ .description="MS compress file (SZDD)",
+ .min_header_distance=0,
+ .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+ .recover=1,
+ .enable_by_default=1,
+ .register_header_check=&register_header_check_compress
+};
+
+static const unsigned char compress_header[10] = {'S', 'Z', 'D', 'D', 0x88, 0xf0, 0x27, 0x33, 'A', 0x00};
+
+static void register_header_check_compress(file_stat_t *file_stat)
+{
+ register_header_check(0, compress_header, sizeof(compress_header), &header_check_compress, file_stat);
+}
+
+static int header_check_compress(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(memcmp(buffer, compress_header, sizeof(compress_header))==0)
+ {
+ reset_file_recovery(file_recovery_new);
+ file_recovery_new->extension=file_hint_compress.extension;
+ return 1;
+ }
+ return 0;
+}