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
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
#ifndef ___LIBARC_H_
#define ___LIBARC_H_
/*
TiMidity++ -- MIDI to WAVE converter and player
Copyright (C) 1999,2000 Masanao Izumo <mo@goice.co.jp>
Copyright (C) 1995 Tuukka Toivonen <tt@cgs.fi>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* Archive library */
#include "url.h"
#include "mblock.h"
#define ARC_LIB_VERSION "2.0.1"
#define ARC_DEFLATE_LEVEL 6 /* 1:Compress faster .. 9:Compress better */
#define ARC_ENTRY_HASHSIZE 63
/*
* Interfaces
*/
extern char **expand_archive_names(int *nfiles_in_out, char **files);
/* Regist all archive files in `files_in_out', and expand the archive */
extern URL url_arc_open(char *name);
/* Open input stream from archive. `name' format must be "filename#entry".
*/
extern void free_archive_files(void);
/* Call once at the last */
/* utilities */
extern int skip_gzip_header(URL url);
extern int parse_gzip_header_bytes(char *gz, long maxparse, int *hdrsiz);
extern int get_archive_type(char *archive_name);
extern void *arc_compress(void *buff, long bufsiz,
int compress_level, long *compressed_size);
extern void *arc_decompress(void *buff, long bufsiz, long *decompressed_size);
extern int arc_case_wildmat(char *text, char *p);
extern int arc_wildmat(char *text, char *p);
extern void (* arc_error_handler)(char *error_message);
/*
* Internal library usage only
*/
typedef struct _ArchiveEntryNode
{
struct _ArchiveEntryNode *next; /* next entry */
char *name; /* Name of this entry */
int comptype; /* Compression/Encoding type */
long compsize; /* Compressed size */
long origsize; /* Uncompressed size */
long start; /* Offset start point */
void *cache; /* Cached data */
} ArchiveEntryNode;
typedef struct _ArchiveHandler {
int isfile;
URL url; /* Input stream */
int counter;/* counter to extract the entry*/
long pos;
} ArchiveHandler;
extern ArchiveHandler arc_handler;
extern ArchiveEntryNode *arc_parse_entry(URL url, int archive_type);
extern ArchiveEntryNode *new_entry_node(char *name, int len);
extern ArchiveEntryNode *next_tar_entry(void);
extern ArchiveEntryNode *next_zip_entry(void);
extern ArchiveEntryNode *next_lzh_entry(void);
extern ArchiveEntryNode *next_mime_entry(void);
extern void free_entry_node(ArchiveEntryNode *entry);
/* Compression/Encoding type */
enum
{
ARCHIVEC_STORED, /* No compression */
ARCHIVEC_PATHNAME, /* Pathname (Contents exists there) */
ARCHIVEC_COMPRESSED, /* Compressed */
ARCHIVEC_PACKED, /* Packed */
ARCHIVEC_DEFLATED, /* Deflate */
ARCHIVEC_SHRUNKED, /* Shrunked */
ARCHIVEC_REDUCED1, /* Reduced with compression factor 1 */
ARCHIVEC_REDUCED2, /* Reduced with compression factor 2 */
ARCHIVEC_REDUCED3, /* Reduced with compression factor 3 */
ARCHIVEC_REDUCED4, /* Reduced with compression factor 4 */
ARCHIVEC_IMPLODED, /* Implode base-tag */
ARCHIVEC_IMPLODED_LIT8, /* 8K sliding window (coded) */
ARCHIVEC_IMPLODED_LIT4, /* 4K sliding window (coded) */
ARCHIVEC_IMPLODED_NOLIT8, /* 8K sliding window (uncoded) */
ARCHIVEC_IMPLODED_NOLIT4, /* 4K sliding window (uncoded) */
ARCHIVEC_LZHED, /* LZH base-tag */
ARCHIVEC_LZHED_LH0, /* -lh0- (ARCHIVE_STORED) */
ARCHIVEC_LZHED_LH1, /* -lh1- */
ARCHIVEC_LZHED_LH2, /* -lh2- */
ARCHIVEC_LZHED_LH3, /* -lh3- */
ARCHIVEC_LZHED_LH4, /* -lh4- */
ARCHIVEC_LZHED_LH5, /* -lh5- */
ARCHIVEC_LZHED_LZS, /* -lzs- */
ARCHIVEC_LZHED_LZ5, /* -lz5- */
ARCHIVEC_LZHED_LZ4, /* -lz4- (ARCHIVE_STORED) */
ARCHIVEC_LZHED_LHD, /* -lhd- (Directory, No compression data) */
ARCHIVEC_LZHED_LH6, /* -lh6- */
ARCHIVEC_LZHED_LH7, /* -lh7- */
/* Encode for MIME */
ARCHIVEC_UU, /* uu encoded */
ARCHIVEC_B64, /* base64 encoded */
ARCHIVEC_QS, /* quoted string encoded */
ARCHIVEC_HQX /* HQX encoded */
};
/* archive_type */
enum
{
ARCHIVE_TAR,
ARCHIVE_TGZ,
ARCHIVE_ZIP,
ARCHIVE_LZH,
ARCHIVE_DIR,
ARCHIVE_MIME,
ARCHIVE_NEWSGROUP
};
#endif /* ___LIBARC_H_ */
|