1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/*
* Copyright (C) 2008 Sourcefire, Inc.
*
* Authors: Alberto Wu
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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 to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#ifndef __EXPLODE_H
#define __EXPLODE_H
#include "cltypes.h"
enum {
EXPLODE_EBUFF,
EXPLODE_ESTREAM
};
#define EXPLODE_OK EXPLODE_EBUFF
enum XPL_STATE {
GRABLITS,
GRABLENS,
GRABDISTS,
EXPLODE,
EXPLODE_LITCODES,
EXPLODE_LITS,
EXPLODE_BASEDIST,
EXPLODE_DECODEDISTS,
EXPLODE_DECODELENS,
EXPLODE_DECODEEXTRA,
EXPLODE_WBYTE,
EXPLODE_BACKCOPY
};
struct xplstate {
uint8_t *next_in;
uint8_t *next_out;
unsigned int got;
unsigned int minlen;
unsigned int mask;
unsigned int cur;
uint32_t lit_tree[256];
uint32_t len_tree[64];
uint32_t dist_tree[64];
uint32_t bitmap;
uint32_t avail_in;
uint32_t avail_out;
uint16_t backbytes;
uint16_t backsize;
uint8_t window[8192];
enum XPL_STATE state;
uint8_t bits;
uint8_t largewin;
uint8_t litcodes;
};
int explode_init(struct xplstate *, uint16_t);
int explode(struct xplstate *);
void explode_shutdown(void);
#endif /* __EXPLODE_H */
|