From 8c01cd3f1660a8a757f6efaa4efa812aac2df926 Mon Sep 17 00:00:00 2001
From: Christophe Grenier <grenier@cgsecurity.org>
Date: Fri, 3 Jul 2009 08:04:27 +0200
Subject: [PATCH] PhotoRec: recover Russian Finance 1C:Enterprise 8 .1cd files

---
 src/Makefile.am |  1 +
 src/file_1cd.c  | 68 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/file_list.c |  2 ++
 3 files changed, 71 insertions(+)
 create mode 100644 src/file_1cd.c

diff --git a/src/Makefile.am b/src/Makefile.am
index 3b3dc4fc..82f8d127 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -26,6 +26,7 @@ testdisk_SOURCES	= $(base_C) $(base_H) $(fs_C) $(fs_H) $(testdisk_ncurses_C) $(t
 
 file_C			= filegen.c \
 			  file_list.c \
+			  file_1cd.c \
 			  file_7z.c \
 			  file_DB.c \
 			  file_a.c \
diff --git a/src/file_1cd.c b/src/file_1cd.c
new file mode 100644
index 00000000..0da48a9f
--- /dev/null
+++ b/src/file_1cd.c
@@ -0,0 +1,68 @@
+/*
+
+    File: file_1cd.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_1cd(file_stat_t *file_stat);
+static int header_check_1cd(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_1cd= {
+  .extension="1cd",
+  .description="Russian Finance 1C:Enterprise 8",
+  .min_header_distance=0,
+  .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+  .recover=1,
+  .enable_by_default=1,
+  .register_header_check=&register_header_check_1cd
+};
+
+static const unsigned char header_1cd[9]=  {
+  '1', 'C', 'D', 'B', 'M', 'S', 'V', '8', 0x08
+};
+
+static void register_header_check_1cd(file_stat_t *file_stat)
+{
+  register_header_check(0, header_1cd, sizeof(header_1cd), &header_check_1cd, file_stat);
+}
+
+static int header_check_1cd(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, header_1cd, sizeof(header_1cd))==0)
+  {
+    reset_file_recovery(file_recovery_new);
+    file_recovery_new->extension=file_hint_1cd.extension;
+    file_recovery_new->calculated_file_size=((uint64_t)buffer[0xC]<<12) + (((uint64_t)buffer[0xD])<<20) +
+      (((uint64_t)buffer[0xE])<<28) + (((uint64_t)buffer[0xF])<<36);
+    file_recovery_new->data_check=&data_check_size;
+    file_recovery_new->file_check=&file_check_size;
+    return 1;
+  }
+  return 0;
+}
diff --git a/src/file_list.c b/src/file_list.c
index 8d7b9ff8..88183660 100644
--- a/src/file_list.c
+++ b/src/file_list.c
@@ -27,6 +27,7 @@
 #include "types.h"
 #include "filegen.h"
 
+extern const file_hint_t file_hint_1cd;
 extern const file_hint_t file_hint_7z;
 extern const file_hint_t file_hint_DB;
 extern const file_hint_t file_hint_a;
@@ -210,6 +211,7 @@ extern const file_hint_t file_hint_zip;
 
 file_enable_t list_file_enable[]=
 {
+  { .enable=0, .file_hint=&file_hint_1cd  },
   { .enable=0, .file_hint=&file_hint_7z   },
   { .enable=0, .file_hint=&file_hint_DB    },
   { .enable=0, .file_hint=&file_hint_a    },