From c8b71047dbb50c6b99233c3680e879f2c22bf8d0 Mon Sep 17 00:00:00 2001
From: Christophe Grenier <grenier@cgsecurity.org>
Date: Tue, 16 Aug 2016 20:10:08 +0200
Subject: [PATCH] PhotoRec: recover NIS-Elements .nd2 files

---
 src/Makefile.am |  1 +
 src/file_list.c |  2 ++
 src/file_nd2.c  | 57 +++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 60 insertions(+)
 create mode 100644 src/file_nd2.c

diff --git a/src/Makefile.am b/src/Makefile.am
index 4390194e..62ccef7f 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -213,6 +213,7 @@ file_C			= filegen.c \
 			  file_mxf.c \
 			  file_myo.c \
 			  file_mysql.c \
+			  file_nd2.c \
 			  file_nds.c \
 			  file_nes.c \
 			  file_njx.c \
diff --git a/src/file_list.c b/src/file_list.c
index 35e6579c..6d81205d 100644
--- a/src/file_list.c
+++ b/src/file_list.c
@@ -216,6 +216,7 @@ extern const file_hint_t file_hint_mus;
 extern const file_hint_t file_hint_mxf;
 extern const file_hint_t file_hint_myo;
 extern const file_hint_t file_hint_mysql;
+extern const file_hint_t file_hint_nd2;
 extern const file_hint_t file_hint_nds;
 extern const file_hint_t file_hint_nes;
 extern const file_hint_t file_hint_njx;
@@ -535,6 +536,7 @@ file_enable_t list_file_enable[]=
   { .enable=0, .file_hint=&file_hint_myo  },
   { .enable=0, .file_hint=&file_hint_mysql },
   { .enable=0, .file_hint=&file_hint_mxf  },
+  { .enable=0, .file_hint=&file_hint_nd2  },
   { .enable=0, .file_hint=&file_hint_nds  },
   { .enable=0, .file_hint=&file_hint_nes  },
   { .enable=0, .file_hint=&file_hint_njx  },
diff --git a/src/file_nd2.c b/src/file_nd2.c
new file mode 100644
index 00000000..3dd9f844
--- /dev/null
+++ b/src/file_nd2.c
@@ -0,0 +1,57 @@
+/*
+
+    File: file_nd2.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 <ctype.h>
+#include "types.h"
+#include "filegen.h"
+
+static void register_header_check_nd2(file_stat_t *file_stat);
+
+const file_hint_t file_hint_nd2= {
+  .extension="nd2",
+  .description="NIS-Elements",
+  .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+  .recover=1,
+  .enable_by_default=1,
+  .register_header_check=&register_header_check_nd2
+};
+
+static int header_check_nd2(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(!isdigit(buffer[0x10+0x23]))
+    return 0;
+  reset_file_recovery(file_recovery_new);
+  file_recovery_new->extension=file_hint_nd2.extension;
+  return 1;
+}
+
+static void register_header_check_nd2(file_stat_t *file_stat)
+{
+  register_header_check(0x10, "ND2 FILE SIGNATURE CHUNK NAME01!Ver", 0x23, &header_check_nd2, file_stat);
+}