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authorChristophe Grenier <grenier@cgsecurity.org>2016-04-06 13:43:25 +0200
committerChristophe Grenier <grenier@cgsecurity.org>2016-04-06 13:43:25 +0200
commitda7dac16a1c6982bb272fcd7f8deefdc49c1daf2 (patch)
tree0dd0d5e083ed3aaad4f0170fb6afb96b1161e2ca
parent7664b755e845b83ec3bb1885ddb06b1f7f4af8f4 (diff)
PhotoRec: recover Steuer2014 and 2015 files
-rw-r--r--src/Makefile.am1
-rw-r--r--src/file_list.c2
-rw-r--r--src/file_steuer2014.c77
3 files changed, 80 insertions, 0 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index 70820cf..550d4e1 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -281,6 +281,7 @@ file_C = filegen.c \
file_spss.c \
file_sql.c \
file_sqm.c \
+ file_steuer2014.c \
file_stl.c \
file_stu.c \
file_swf.c \
diff --git a/src/file_list.c b/src/file_list.c
index a785297..574ea2d 100644
--- a/src/file_list.c
+++ b/src/file_list.c
@@ -285,6 +285,7 @@ extern const file_hint_t file_hint_spf;
extern const file_hint_t file_hint_spss;
extern const file_hint_t file_hint_sqlite;
extern const file_hint_t file_hint_sqm;
+extern const file_hint_t file_hint_steuer2014;
extern const file_hint_t file_hint_stl;
extern const file_hint_t file_hint_stuffit;
extern const file_hint_t file_hint_swf;
@@ -597,6 +598,7 @@ file_enable_t list_file_enable[]=
{ .enable=0, .file_hint=&file_hint_spss },
{ .enable=0, .file_hint=&file_hint_sqlite },
{ .enable=0, .file_hint=&file_hint_sqm },
+ { .enable=0, .file_hint=&file_hint_steuer2014 },
{ .enable=0, .file_hint=&file_hint_stl },
{ .enable=0, .file_hint=&file_hint_stuffit },
{ .enable=0, .file_hint=&file_hint_swf },
diff --git a/src/file_steuer2014.c b/src/file_steuer2014.c
new file mode 100644
index 0000000..2645c9b
--- /dev/null
+++ b/src/file_steuer2014.c
@@ -0,0 +1,77 @@
+/*
+
+ File: file_steuer2014.c
+
+ Copyright (C) 2016 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 <time.h>
+#include "types.h"
+#include "filegen.h"
+#include "common.h"
+
+static void register_header_check_steuer(file_stat_t *file_stat);
+
+const file_hint_t file_hint_steuer2014= {
+ .extension="steuer2014",
+ .description="Steuer 2014/2015",
+ .max_filesize=100*1024*1024,
+ .recover=1,
+ .enable_by_default=1,
+ .register_header_check=&register_header_check_steuer
+};
+
+struct steuer_header
+{
+ uint8_t magic[8];
+ uint32_t version1;
+ uint32_t version2;
+ char date_string[0x18];
+} __attribute__ ((gcc_struct, __packed__));
+
+static int header_check_steuer(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 struct steuer_header *h=(const struct steuer_header *)buffer;
+ struct tm tm_time;
+ if(h->version1!=h->version2)
+ return 0;
+ memset(&tm_time, 0, sizeof(struct tm));
+ strptime(h->date_string, "%b %d %Y %H:%M:%S", &tm_time);
+ reset_file_recovery(file_recovery_new);
+ if(le32(h->version1)>=0x13)
+ file_recovery_new->extension="steuer2015";
+ else
+ file_recovery_new->extension=file_hint_steuer2014.extension;
+ file_recovery_new->time=mktime(&tm_time);
+ return 1;
+}
+
+static void register_header_check_steuer(file_stat_t *file_stat)
+{
+ static const unsigned char steuer_header[8]= {
+ 'R' , 0x26, 'S' , 0x1a, 0x11, 0x01, 0x01, 0x00
+ };
+ register_header_check(0, steuer_header, sizeof(steuer_header), &header_check_steuer, file_stat);
+}