PhotoRec: recover Football Manager .fm files

3 files changed, 72 insertions, 0 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index 002a8be..532c578 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -139,6 +139,7 @@ file_C			= filegen.c \
 			  file_flac.c \
 			  file_flp.c \
 			  file_flv.c \
+			  file_fm.c \
 			  file_fob.c \
 			  file_fos.c \
 			  file_fp5.c \
diff --git a/src/file_fm.c b/src/file_fm.c
new file mode 100644
index 0000000..240e15d
--- /dev/null
+++ b/src/file_fm.c
@@ -0,0 +1,69 @@
+/*
+
+    File: file_fm.c
+
+    Copyright (C) 2018 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"
+#include "common.h"
+
+static void register_header_check_fm(file_stat_t *file_stat);
+
+const file_hint_t file_hint_fm= {
+  .extension="fm",
+  .description="Football Manager",
+  .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+  .recover=1,
+  .enable_by_default=1,
+  .register_header_check=&register_header_check_fm
+};
+
+struct fm_header
+{
+  char magic[9];
+  uint64_t size;
+} __attribute__ ((gcc_struct, __packed__));
+
+static int header_check_fm(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 fm_header *hdr=(const struct fm_header *)buffer;
+  reset_file_recovery(file_recovery_new);
+  file_recovery_new->extension=file_hint_fm.extension;
+  file_recovery_new->calculated_file_size=(uint64_t)le64(hdr->size) + 12833;
+  file_recovery_new->data_check=&data_check_size;
+  file_recovery_new->file_check=&file_check_size;
+  return 1;
+}
+
+static void register_header_check_fm(file_stat_t *file_stat)
+{
+  static const unsigned char fm_header[9]=  {
+    0x02, 0x01, 'f' , 'm' , 'f' , '.' , 0x07, 0x00,
+    0x00
+  };
+  register_header_check(0, fm_header, sizeof(fm_header), &header_check_fm, file_stat);
+}
diff --git a/src/file_list.c b/src/file_list.c
index ef39792..4fd428f 100644
--- a/src/file_list.c
+++ b/src/file_list.c
@@ -141,6 +141,7 @@ extern const file_hint_t file_hint_flac;
 extern const file_hint_t file_hint_fasttxt;
 extern const file_hint_t file_hint_flp;
 extern const file_hint_t file_hint_flv;
+extern const file_hint_t file_hint_fm;
 extern const file_hint_t file_hint_fob;
 extern const file_hint_t file_hint_fos;
 extern const file_hint_t file_hint_fp5;
@@ -474,6 +475,7 @@ file_enable_t list_file_enable[]=
   { .enable=0, .file_hint=&file_hint_flac },
   { .enable=0, .file_hint=&file_hint_flp  },
   { .enable=0, .file_hint=&file_hint_flv  },
+  { .enable=0, .file_hint=&file_hint_fm  },
   { .enable=0, .file_hint=&file_hint_fob  },
   { .enable=0, .file_hint=&file_hint_fos  },
   { .enable=0, .file_hint=&file_hint_fp5  },