1 /*
2
3 File: file_prc.c
4
5 Copyright (C) 2006-2007 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 #include "common.h"
33
34 static void register_header_check_prc(file_stat_t *file_stat);
35 static int header_check_prc(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);
36
37 const file_hint_t file_hint_prc= {
38 .extension="prc",
39 .description="PalmOS application",
40 .max_filesize=PHOTOREC_MAX_FILE_SIZE,
41 .recover=1,
42 .enable_by_default=1,
43 .register_header_check=®ister_header_check_prc
44 };
45
46 struct DatabaseHdrType_s {
47 unsigned char name[32];
48 uint16_t attributes; /* 0x20 */
49 uint32_t creationDate; /* 0x22 */
50 uint32_t modificationDate; /* 0x26 */
51 uint32_t lastBackupDate; /* 0x2a */
52 uint32_t modificationNumber; /* 0x2e */
53 unsigned char appInfoID[5]; /* 0x32 */
54 unsigned char sortInfoID[5];
55 uint32_t type; /* 0x3c */
56 uint32_t creator; /* 0x40 */
57 uint32_t uniqueIDSeed; /* 0x44 */
58 /* RecordListType recordList; */
59 } __attribute__ ((gcc_struct, __packed__));
60
header_check_prc(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)61 static int header_check_prc(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)
62 {
63 const struct DatabaseHdrType_s *prc=(const struct DatabaseHdrType_s *)buffer;
64 if(be32(prc->uniqueIDSeed)==0)
65 {
66 reset_file_recovery(file_recovery_new);
67 file_recovery_new->extension=file_hint_prc.extension;
68 file_recovery_new->time=be32(prc->modificationDate);
69 return 1;
70 }
71 return 0;
72 }
73
register_header_check_prc(file_stat_t * file_stat)74 static void register_header_check_prc(file_stat_t *file_stat)
75 {
76 static const unsigned char prc_header[16]= {0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,'a','p','p','l'};
77 register_header_check(0x30, prc_header,sizeof(prc_header), &header_check_prc, file_stat);
78 }
79