PhotoRec: recover Apple Logic .exs

1 files changed, 78 insertions, 0 deletions

diff --git a/src/file_exs.c b/src/file_exs.c
new file mode 100644
index 00000000..db620903
--- /dev/null
+++ b/src/file_exs.c
@@ -0,0 +1,78 @@
+/*
+
+    File: file_exs.c
+
+    Copyright (C) 2011 Christophe GRENIER <[email protected]>
+  
+    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_exs(file_stat_t *file_stat);
+
+const file_hint_t file_hint_exs= {
+  .extension="exs",
+  .description="Apple Logic",
+  .min_header_distance=0,
+  .max_filesize=1024*1024,
+  .recover=1,
+  .enable_by_default=1,
+  .register_header_check=&register_header_check_exs
+};
+
+static void file_rename_exs(const char *old_filename)
+{
+  unsigned char buffer[512];
+  FILE *file;
+  int buffer_size;
+  if((file=fopen(old_filename, "rb"))==NULL)
+    return;
+  buffer_size=fread(buffer, 1, sizeof(buffer), file);
+  fclose(file);
+  file_rename(old_filename, buffer, buffer_size, 0x14, "exs", 0);
+}
+
+static const unsigned char exs_header[8]=  {
+  0x01, 0x01, 0x00, 0x00, 0x28, 0x00, 0x00, 0x00
+};
+
+static int header_check_exs(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[0], exs_header, sizeof(exs_header))==0)
+  {
+    reset_file_recovery(file_recovery_new);
+    file_recovery_new->extension=file_hint_exs.extension;
+    file_recovery_new->file_rename=file_rename_exs;
+    return 1;
+  }
+  return 0;
+}
+
+static void register_header_check_exs(file_stat_t *file_stat)
+{
+  register_header_check(0, exs_header, sizeof(exs_header), &header_check_exs, file_stat);
+}
+
+