1 /*
2
3 File: file_db.c
4
5 Copyright (C) 2013 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_berkeley_le(file_stat_t *file_stat);
34
35 const file_hint_t file_hint_berkeley= {
36 .extension="db",
37 .description="Berkeley DB (Little Endian)",
38 .max_filesize=PHOTOREC_MAX_FILE_SIZE,
39 .recover=1,
40 .enable_by_default=1,
41 .register_header_check=®ister_header_check_berkeley_le
42 };
43
header_check_berkeley_le(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)44 static int header_check_berkeley_le(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)
45 {
46 reset_file_recovery(file_recovery_new);
47 file_recovery_new->extension=file_hint_berkeley.extension;
48 file_recovery_new->min_filesize=0xC+8;
49 return 1;
50 }
51
register_header_check_berkeley_le(file_stat_t * file_stat)52 static void register_header_check_berkeley_le(file_stat_t *file_stat)
53 {
54 #if 0
55 static unsigned char berkeley_db_hash_4[8]={0x61, 0x15, 0x06, 0x00, 0x04, 0x00, 0x00, 0x00};
56 static unsigned char berkeley_db_hash_5[8]={0x61, 0x15, 0x06, 0x00, 0x05, 0x00, 0x00, 0x00};
57 static unsigned char berkeley_db_hash_6[8]={0x61, 0x15, 0x06, 0x00, 0x06, 0x00, 0x00, 0x00};
58 static unsigned char berkeley_db_hash_7[8]={0x61, 0x15, 0x06, 0x00, 0x07, 0x00, 0x00, 0x00};
59 #endif
60 static unsigned char berkeley_db_hash_8[8]={0x61, 0x15, 0x06, 0x00, 0x08, 0x00, 0x00, 0x00};
61 static unsigned char berkeley_db_hash_9[8]={0x61, 0x15, 0x06, 0x00, 0x09, 0x00, 0x00, 0x00};
62 #if 0
63 static unsigned char berkeley_db_btree_4[8]={0x62, 0x31, 0x05, 0x00, 0x04, 0x00, 0x00, 0x00};
64 static unsigned char berkeley_db_btree_5[8]={0x62, 0x31, 0x05, 0x00, 0x05, 0x00, 0x00, 0x00};
65 static unsigned char berkeley_db_btree_6[8]={0x62, 0x31, 0x05, 0x00, 0x06, 0x00, 0x00, 0x00};
66 static unsigned char berkeley_db_btree_7[8]={0x62, 0x31, 0x05, 0x00, 0x07, 0x00, 0x00, 0x00};
67 #endif
68 static unsigned char berkeley_db_btree_8[8]={0x62, 0x31, 0x05, 0x00, 0x08, 0x00, 0x00, 0x00};
69 static unsigned char berkeley_db_btree_9[8]={0x62, 0x31, 0x05, 0x00, 0x09, 0x00, 0x00, 0x00};
70 register_header_check(0xC, berkeley_db_hash_8, 8, &header_check_berkeley_le, file_stat);
71 register_header_check(0xC, berkeley_db_hash_9, 8, &header_check_berkeley_le, file_stat);
72 register_header_check(0xC, berkeley_db_btree_8, 8, &header_check_berkeley_le, file_stat);
73 register_header_check(0xC, berkeley_db_btree_9, 8, &header_check_berkeley_le, file_stat);
74 }
75