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authorChristophe Grenier <grenier@cgsecurity.org>2008-03-29 09:54:25 +0100
committerChristophe Grenier <grenier@cgsecurity.org>2008-03-29 09:54:25 +0100
commit87430ae7652eebf21b996f2a0984e745e8e76dc5 (patch)
tree2c0657213fde7b6689be711745581c31a833b7cd /src/file_iso.c
parenta9debb86160ae877c50390f01229f907bb5cbc04 (diff)
Add .iso file support (Don't always work)
Diffstat (limited to 'src/file_iso.c')
-rw-r--r--src/file_iso.c76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/file_iso.c b/src/file_iso.c
new file mode 100644
index 0000000..50ec62c
--- /dev/null
+++ b/src/file_iso.c
@@ -0,0 +1,76 @@
+/*
+
+ File: file_iso.c
+
+ Copyright (C) 2008 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_iso(file_stat_t *file_stat);
+static int header_check_db(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_iso= {
+ .extension="iso",
+ .description="ISO (Only detected if block size >= 64k)",
+ .min_header_distance=0,
+ .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+ .recover=1,
+ .enable_by_default=1,
+ .register_header_check=&register_header_check_iso
+};
+
+
+static const unsigned char iso_header[6]= { 0x01, 'C', 'D', '0', '0', '1'};
+/* ISO 9660
+ 0x00 Volume Descriptor Type 0x01
+ 0x01 Standard Identifier CD001
+ 0x07 Volume Descriptor Version 0x01
+ 0x08 Unused Field 0x00
+ 0x09 System Identifier
+ 0x41 Volume Identifier
+ 0x73 Unused Field
+*/
+static void register_header_check_iso(file_stat_t *file_stat)
+{
+ register_header_check(0x8000, iso_header,sizeof(iso_header), &header_check_db, file_stat);
+}
+
+static int header_check_db(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(buffer_size<0x8000+sizeof(iso_header))
+ return 0;
+ if(memcmp (&buffer[0x8000], iso_header, sizeof(iso_header))==0)
+ {
+ reset_file_recovery(file_recovery_new);
+ file_recovery_new->extension=file_hint_iso.extension;
+ return 1;
+ }
+ return 0;
+}
+
+