1 /*
2
3 File: file_asm.c
4
5 Copyright (C) 2008 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 <ctype.h>
31 #include "types.h"
32 #include "filegen.h"
33
34
35 static void register_header_check_asm(file_stat_t *file_stat);
36 static int header_check_asm(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);
37 static void file_check_asm(file_recovery_t *file_recovery);
38
39 const file_hint_t file_hint_asm= {
40 .extension="asm",
41 .description="Pro/ENGINEER Assembly",
42 .max_filesize=PHOTOREC_MAX_FILE_SIZE,
43 .recover=1,
44 .enable_by_default=1,
45 .register_header_check=®ister_header_check_asm
46 };
47
48 static const unsigned char asm_header[16]= {
49 '#', 'U', 'G', 'C', ':', '2', ' ', 'A',
50 'S', 'S', 'E', 'M', 'B', 'L', 'Y', ' '};
51
register_header_check_asm(file_stat_t * file_stat)52 static void register_header_check_asm(file_stat_t *file_stat)
53 {
54 register_header_check(0, asm_header,sizeof(asm_header), &header_check_asm, file_stat);
55 }
56
header_check_asm(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)57 static int header_check_asm(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)
58 {
59 if(!isprint(buffer[16]) || !isprint(buffer[17]) || !isprint(buffer[18]) || !isprint(buffer[19]))
60 return 0;
61 reset_file_recovery(file_recovery_new);
62 file_recovery_new->file_check=&file_check_asm;
63 file_recovery_new->extension=file_hint_asm.extension;
64 return 1;
65 }
66
file_check_asm(file_recovery_t * file_recovery)67 static void file_check_asm(file_recovery_t *file_recovery)
68 {
69 const unsigned char asm_footer[11]= {
70 '#', 'E', 'N', 'D', '_', 'O', 'F', '_',
71 'U', 'G', 'C'};
72 file_search_footer(file_recovery, asm_footer, sizeof(asm_footer), 1);
73 }
74