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authorChristophe Grenier <grenier@cgsecurity.org>2007-10-29 22:38:52 +0100
committerChristophe Grenier <grenier@cgsecurity.org>2007-10-29 22:38:52 +0100
commit9928d99936105b4653d2d1b8ca74dc3ffba5c71e (patch)
tree06aa4f5e9f0055027c6fb54dd47a8414cf2fba32 /src/file_indd.c
First version in git
Diffstat (limited to 'src/file_indd.c')
-rw-r--r--src/file_indd.c90
1 files changed, 90 insertions, 0 deletions
diff --git a/src/file_indd.c b/src/file_indd.c
new file mode 100644
index 0000000..56b3bbf
--- /dev/null
+++ b/src/file_indd.c
@@ -0,0 +1,90 @@
+/*
+
+ File: file_indd.c
+
+ Copyright (C) 2007 Christophe GRENIER <grenier@cgsecurity.org>
+ Copyright (C) 2007 Peter Turczak <pnospamt@netconsequence.de>
+
+ 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 "common.h"
+#include "filegen.h"
+#include "log.h"
+
+struct indd_header_s {
+ unsigned char id[24];
+ unsigned char unknown[256];
+ uint32_t blocks; /* Little Endian block count, one block is 4096 byte, note that headblocks need to be added in order to have the actual file length */
+ char headblocks;
+} __attribute__ ((__packed__));
+typedef struct indd_header_s indd_header_t;
+
+
+static void register_header_check_indd(file_stat_t *file_stat);
+static int header_check_indd(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);
+static void file_check_indd(file_recovery_t *file_recovery);
+
+file_hint_t file_hint_indd= {
+ .extension="indd",
+ .description="InDesign File",
+ .min_header_distance=8192,
+ .max_filesize=PHOTOREC_MAX_FILE_SIZE,
+ .recover=1,
+ .header_check=&header_check_indd,
+ .register_header_check=&register_header_check_indd
+};
+
+static const unsigned char indd_header[24]={
+ 0x06, 0x06, 0xed, 0xf5, 0xd8, 0x1d, 0x46, 0xe5,
+ 0xbd, 0x31, 0xef, 0xe7, 0xfe, 0x74, 0xb7, 0x1d,
+ 0x44, 0x4f, 0x43, 0x55, 0x4d, 0x45, 0x4e, 0x54 };
+
+static void register_header_check_indd(file_stat_t *file_stat)
+{
+ register_header_check(0, indd_header,sizeof(indd_header), &header_check_indd, file_stat);
+}
+
+static int header_check_indd(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 indd_header_t *hdr = (const indd_header_t *)buffer;
+ if (memcmp(hdr->id,indd_header,sizeof(indd_header))==0)
+ {
+ reset_file_recovery(file_recovery_new);
+ file_recovery_new->extension=file_hint_indd.extension;
+ file_recovery_new->calculated_file_size=(uint64_t)(1+le32(hdr->blocks))*4096;
+ file_recovery_new->file_check=&file_check_indd;
+// log_debug("header_check_indd: Guessed length: %lu.\n", indd_file_size);
+ return 1;
+ }
+ return 0;
+}
+
+static void file_check_indd(file_recovery_t *file_recovery)
+{
+ if(file_recovery->file_size<file_recovery->calculated_file_size)
+ file_recovery->file_size=0;
+ else if(file_recovery->file_size>file_recovery->calculated_file_size+10*4096)
+ file_recovery->file_size=file_recovery->calculated_file_size+10*4096;
+}