From b265db85ded21f2066958b9e4148411f546cd6f8 Mon Sep 17 00:00:00 2001
From: Christophe Grenier <grenier@cgsecurity.org>
Date: Mon, 19 Oct 2009 22:25:12 +0200
Subject: [PATCH] PhotoRec: recover Color profiles .icc

---
 src/Makefile.am |  1 +
 src/file_icc.c  | 67 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/file_list.c |  2 ++
 3 files changed, 70 insertions(+)
 create mode 100644 src/file_icc.c

diff --git a/src/Makefile.am b/src/Makefile.am
index 1f959898..5034063b 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -109,6 +109,7 @@ file_C			= filegen.c \
 			  file_gz.c \
 			  file_hds.c \
 			  file_hr9.c \
+			  file_icc.c \
 			  file_ico.c \
 			  file_ifo.c \
 			  file_imb.c \
diff --git a/src/file_icc.c b/src/file_icc.c
new file mode 100644
index 00000000..66be0a5c
--- /dev/null
+++ b/src/file_icc.c
@@ -0,0 +1,67 @@
+/*
+
+    File: file_icc.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_icc(file_stat_t *file_stat);
+static int header_check_icc(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_icc= {
+  .extension="icc",
+  .description="Color profiles",
+  .min_header_distance=0,
+  .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+  .recover=1,
+  .enable_by_default=1,
+  .register_header_check=&register_header_check_icc
+};
+
+/* http://www.npes.org/ICC/ICC1-V41_ForPublicReview.pdf */
+
+static const unsigned char icc_header[4]= { 'a', 'c', 's', 'p' };
+
+static void register_header_check_icc(file_stat_t *file_stat)
+{
+  register_header_check(36, icc_header,sizeof(icc_header), &header_check_icc, file_stat);
+}
+
+static int header_check_icc(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 uint64_t file_size=(((uint64_t)buffer[0])<<24) +
+      (((uint64_t)buffer[1])<<16) + (((uint64_t)buffer[2])<<8) + (uint64_t)buffer[3];
+  if(memcmp(&buffer[36],icc_header,sizeof(icc_header))==0 && file_size>128 &&
+      buffer[10]==0 && buffer[11]==0)
+  {
+    reset_file_recovery(file_recovery_new);
+    file_recovery_new->extension=file_hint_icc.extension;
+    file_recovery_new->calculated_file_size=file_size;
+    return 1;
+  }
+  return 0;
+}
diff --git a/src/file_list.c b/src/file_list.c
index c0b0651e..d1354453 100644
--- a/src/file_list.c
+++ b/src/file_list.c
@@ -112,6 +112,7 @@ extern const file_hint_t file_hint_gpg;
 extern const file_hint_t file_hint_gz;
 extern const file_hint_t file_hint_hds;
 extern const file_hint_t file_hint_hr9;
+extern const file_hint_t file_hint_icc;
 extern const file_hint_t file_hint_ico;
 extern const file_hint_t file_hint_ifo;
 extern const file_hint_t file_hint_imb;
@@ -303,6 +304,7 @@ file_enable_t list_file_enable[]=
   { .enable=0, .file_hint=&file_hint_gz   },
   { .enable=0, .file_hint=&file_hint_hds  },
   { .enable=0, .file_hint=&file_hint_hr9  },
+  { .enable=0, .file_hint=&file_hint_icc  },
   { .enable=0, .file_hint=&file_hint_ico  },
   { .enable=0, .file_hint=&file_hint_ifo  },
   { .enable=0, .file_hint=&file_hint_imb  },