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
143
144
145
146
|
// ZipConstants.cs
// Copyright (C) 2001 Mike Krueger
//
// This file was translated from java, it was part of the GNU Classpath
// Copyright (C) 2001 Free Software Foundation, Inc.
//
// 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// Linking this library statically or dynamically with other modules is
// making a combined work based on this library. Thus, the terms and
// conditions of the GNU General Public License cover the whole
// combination.
//
// As a special exception, the copyright holders of this library give you
// permission to link this library with independent modules to produce an
// executable, regardless of the license terms of these independent
// modules, and to copy and distribute the resulting executable under
// terms of your choice, provided that you also meet, for each linked
// independent module, the terms and conditions of the license of that
// module. An independent module is a module which is not derived from
// or based on this library. If you modify this library, you may extend
// this exception to your version of the library, but you are not
// obligated to do so. If you do not wish to do so, delete this
// exception statement from your version.
using System.Text;
namespace ICSharpCode.SharpZipLib.Zip
{
/// <summary>
/// This class contains constants used for zip.
/// </summary>
public sealed class ZipConstants
{
/* The local file header */
public const int LOCHDR = 30;
public const int LOCSIG = 'P' | ('K' << 8) | (3 << 16) | (4 << 24);
public const int LOCVER = 4;
public const int LOCFLG = 6;
public const int LOCHOW = 8;
public const int LOCTIM = 10;
public const int LOCCRC = 14;
public const int LOCSIZ = 18;
public const int LOCLEN = 22;
public const int LOCNAM = 26;
public const int LOCEXT = 28;
public const int SPANNINGSIG = 'P' | ('K' << 8) | (7 << 16) | (8 << 24);
public const int SPANTEMPSIG = 'P' | ('K' << 8) | ('0' << 16) | ('0' << 24);
/* The Data descriptor */
public const int EXTSIG = 'P' | ('K' << 8) | (7 << 16) | (8 << 24);
public const int EXTHDR = 16;
public const int EXTCRC = 4;
public const int EXTSIZ = 8;
public const int EXTLEN = 12;
/* The central directory file header */
public const int CENSIG = 'P' | ('K' << 8) | (1 << 16) | (2 << 24);
/* The central directory file header for 64bit ZIP*/
public const int CENSIG64 = 'P' | ('K' << 8) | (6 << 16) | (6 << 24);
public const int CENHDR = 46;
public const int CENVEM = 4;
public const int CENVER = 6;
public const int CENFLG = 8;
public const int CENHOW = 10;
public const int CENTIM = 12;
public const int CENCRC = 16;
public const int CENSIZ = 20;
public const int CENLEN = 24;
public const int CENNAM = 28;
public const int CENEXT = 30;
public const int CENCOM = 32;
public const int CENDSK = 34;
public const int CENATT = 36;
public const int CENATX = 38;
public const int CENOFF = 42;
/* The entries in the end of central directory */
public const int ENDSIG = 'P' | ('K' << 8) | (5 << 16) | (6 << 24);
public const int ENDHDR = 22;
public const int HDRDIGITALSIG = 'P' | ('K' << 8) | (5 << 16) | (5 << 24);
public const int CENDIGITALSIG = 'P' | ('K' << 8) | (5 << 16) | (5 << 24);
/* The following two fields are missing in SUN JDK */
public const int ENDNRD = 4;
public const int ENDDCD = 6;
public const int ENDSUB = 8;
public const int ENDTOT = 10;
public const int ENDSIZ = 12;
public const int ENDOFF = 16;
public const int ENDCOM = 20;
static int defaultCodePage = 0; // 0 gives default code page, set it to whatever you like or alternatively alter it via property at runtime for more flexibility
// Some care for compatability purposes is required as you can specify unicode code pages here.... if this way of working seems ok
// then some protection may be added to make the interface a bit more robust perhaps.
public static int DefaultCodePage {
get {
return defaultCodePage;
}
set {
defaultCodePage = value;
}
}
public static string ConvertToString(byte[] data)
{
#if COMACT_FRAMEWORK
return Encoding.ASCII.GetString(data,0, data.Length);
#else
return Encoding.GetEncoding(DefaultCodePage).GetString(data, 0, data.Length);
#endif
}
public static byte[] ConvertToArray(string str)
{
#if COMACT_FRAMEWORK
return Encoding.ASCII.GetBytes(str);
#else
return Encoding.GetEncoding(DefaultCodePage).GetBytes(str);
#endif
}
}
}
|
