1 /*
2 
3     File: file_z2d.c
4 
5     Copyright (C) 2012 Christophe GRENIER <grenier@cgsecurity.org>
6 
7     This software is free software; you can redistribute it and/or modify
8     it under the terms of the GNU General Public License as published by
9     the Free Software Foundation; either version 2 of the License, or
10     (at your option) any later version.
11 
12     This program is distributed in the hope that it will be useful,
13     but WITHOUT ANY WARRANTY; without even the implied warranty of
14     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15     GNU General Public License for more details.
16 
17     You should have received a copy of the GNU General Public License along
18     with this program; if not, write the Free Software Foundation, Inc., 51
19     Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
20 
21  */
22 
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26 #ifdef HAVE_STRING_H
27 #include <string.h>
28 #endif
29 #include <stdio.h>
30 #include "types.h"
31 #include "filegen.h"
32 
33 static void register_header_check_z2d(file_stat_t *file_stat);
34 
35 const file_hint_t file_hint_z2d= {
36   .extension="z2d",
37   .description="ZeroCad",
38   .max_filesize=PHOTOREC_MAX_FILE_SIZE,
39   .recover=1,
40   .enable_by_default=1,
41   .register_header_check=&register_header_check_z2d
42 };
43 
44 static const unsigned char z2d_header[2]=  { 0xc3, 0x40 };
45 
header_check_z2d(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)46 static int header_check_z2d(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)
47 {
48   if(buffer[0x28]==0xc3 && buffer[0x29]==0x40 &&
49       buffer[0x30]==0xc3 && buffer[0x31]==0x40 &&
50       buffer[0x38]==0xbf && buffer[0x39]==0x40 &&
51       buffer[0x40]==0xbf && buffer[0x41]==0x40 &&
52       buffer[0x48]==0xb7 && buffer[0x49]==0x40)
53   {
54     reset_file_recovery(file_recovery_new);
55     file_recovery_new->extension=file_hint_z2d.extension;
56     return 1;
57   }
58   return 0;
59 }
60 
register_header_check_z2d(file_stat_t * file_stat)61 static void register_header_check_z2d(file_stat_t *file_stat)
62 {
63   register_header_check(0x28, z2d_header, sizeof(z2d_header), &header_check_z2d, file_stat);
64 }
65