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authorChristophe Grenier <grenier@cgsecurity.org>2011-03-05 19:31:35 +0100
committerChristophe Grenier <grenier@cgsecurity.org>2011-03-05 19:31:35 +0100
commit66e4280fa089d32b82b5e9c6cf8fa0b3da107319 (patch)
tree12278fd55f775042804499f3b38118de1d8dbbd6 /src/file_wtv.c
parentd3a0690caddb1de6c0a5b6a91de50481dbe99763 (diff)
PhotoRec: recover Windows Media Center TV .wtv files
Diffstat (limited to 'src/file_wtv.c')
-rw-r--r--src/file_wtv.c72
1 files changed, 72 insertions, 0 deletions
diff --git a/src/file_wtv.c b/src/file_wtv.c
new file mode 100644
index 0000000..c5a8ed7
--- /dev/null
+++ b/src/file_wtv.c
@@ -0,0 +1,72 @@
+/*
+
+ File: file_wtv.c
+
+ Copyright (C) 2011 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_wtv(file_stat_t *file_stat);
+static int header_check_wtv(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_wtv= {
+ .extension="wtv",
+ .description="Windows Media Center TV",
+ .min_header_distance=0,
+ .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+ .recover=1,
+ .enable_by_default=1,
+ .register_header_check=&register_header_check_wtv
+};
+
+static const unsigned char wtv_header[16]= {
+ 0xb7, 0xd8, 0x00, ' ' , '7' , 'I' , 0xda, 0x11,
+ 0xa6, 'N' , 0x00, 0x07, 0xe9, 0x5e, 0xad, 0x8d
+};
+
+static void register_header_check_wtv(file_stat_t *file_stat)
+{
+ register_header_check(0, wtv_header, sizeof(wtv_header), &header_check_wtv, file_stat);
+}
+
+static int header_check_wtv(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(file_recovery!=NULL && file_recovery->file_stat!=NULL &&
+ file_recovery->file_stat->file_hint==&file_hint_wtv &&
+ file_recovery->file_size<=0x3000)
+ return 0;
+ if(memcmp(&buffer[0], wtv_header, sizeof(wtv_header))==0)
+ {
+ reset_file_recovery(file_recovery_new);
+ file_recovery_new->extension=file_hint_wtv.extension;
+ file_recovery_new->calculated_file_size=(uint64_t)(buffer[0x5a]>>4)+(((uint64_t)buffer[0x5b])<<4)+(((uint64_t)buffer[0x5c])<<12)+(((uint64_t)buffer[0x5d])<<20);
+ file_recovery_new->data_check=&data_check_size;
+ file_recovery_new->file_check=&file_check_size;
+ return 1;
+ }
+ return 0;
+}