blob: 68c2d94907a7cb85bb3b5b927be410d5fe9d5778 (
plain)
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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/*
* Copyright (c) 2007 innoSysTec (R) GmbH, Germany. All rights reserved.
* Original author: Edmund Wagner
* Creation date: 22.05.2007
*
* Source: $HeadURL$
* Last changed: $LastChangedDate$
*
*
* the unrar licence applies to all junrar source and binary distributions
* you are not allowed to use this source to re-create the RAR compression algorithm
*
* Here some html entities which can be used for escaping javadoc tags:
* "&": "&" or "&"
* "<": "<" or "<"
* ">": ">" or ">"
* "@": "@"
*/
package com.github.junrar.rarfile;
import com.github.junrar.io.Raw;
/**
* Base class of all rar headers
*
* @author $LastChangedBy$
* @version $LastChangedRevision$
*/
public class BaseBlock{
//Log //logger = LogFactory.getLog(BaseBlock.class.getName());
public static final short BaseBlockSize = 7;
//TODO move somewhere else
public static final short MHD_VOLUME = 0x0001;
public static final short MHD_COMMENT = 0x0002;
public static final short MHD_LOCK = 0x0004;
public static final short MHD_SOLID = 0x0008;
public static final short MHD_PACK_COMMENT = 0x0010;
public static final short MHD_NEWNUMBERING = 0x0010;
public static final short MHD_AV = 0x0020;
public static final short MHD_PROTECT = 0x0040;
public static final short MHD_PASSWORD = 0x0080;
public static final short MHD_FIRSTVOLUME = 0x0100;
public static final short MHD_ENCRYPTVER = 0x0200;
public static final short LHD_SPLIT_BEFORE = 0x0001;
public static final short LHD_SPLIT_AFTER = 0x0002;
public static final short LHD_PASSWORD = 0x0004;
public static final short LHD_COMMENT = 0x0008;
public static final short LHD_SOLID = 0x0010;
public static final short LHD_WINDOWMASK = 0x00e0;
public static final short LHD_WINDOW64 = 0x0000;
public static final short LHD_WINDOW128 = 0x0020;
public static final short LHD_WINDOW256 = 0x0040;
public static final short LHD_WINDOW512 = 0x0060;
public static final short LHD_WINDOW1024 = 0x0080;
public static final short LHD_WINDOW2048 = 0x00a0;
public static final short LHD_WINDOW4096 = 0x00c0;
public static final short LHD_DIRECTORY = 0x00e0;
public static final short LHD_LARGE = 0x0100;
public static final short LHD_UNICODE = 0x0200;
public static final short LHD_SALT = 0x0400;
public static final short LHD_VERSION = 0x0800;
public static final short LHD_EXTTIME = 0x1000;
public static final short LHD_EXTFLAGS = 0x2000;
public static final short SKIP_IF_UNKNOWN = 0x4000;
public static final short LONG_BLOCK = -0x8000;
public static final short EARC_NEXT_VOLUME = 0x0001;
public static final short EARC_DATACRC = 0x0002;
public static final short EARC_REVSPACE = 0x0004;
public static final short EARC_VOLNUMBER = 0x0008;
protected long positionInFile;
protected short headCRC = 0;
protected byte headerType = 0;
protected short flags = 0;
protected short headerSize = 0 ;
/**
*
*/
public BaseBlock(){
}
public BaseBlock(BaseBlock bb){
this.flags = bb.getFlags();
this.headCRC = bb.getHeadCRC();
this.headerType = bb.getHeaderType().getHeaderByte();
this.headerSize = bb.getHeaderSize();
this.positionInFile = bb.getPositionInFile();
}
public BaseBlock(byte[] baseBlockHeader){
int pos = 0;
this.headCRC = Raw.readShortLittleEndian(baseBlockHeader, pos);
pos+=2;
this.headerType |= baseBlockHeader[pos]&0xff;
pos++;
this.flags = Raw.readShortLittleEndian(baseBlockHeader, pos);
pos+=2;
this.headerSize = Raw.readShortLittleEndian(baseBlockHeader, pos);
}
public boolean hasArchiveDataCRC(){
return (this.flags & EARC_DATACRC)!=0;
}
public boolean hasVolumeNumber(){
return (this.flags & EARC_VOLNUMBER)!=0;
}
public boolean hasEncryptVersion(){
return (flags & MHD_ENCRYPTVER)!=0;
}
/**
* @return is it a sub block
*/
public boolean isSubBlock()
{
if (UnrarHeadertype.SubHeader.equals(headerType)){
return(true);
}
if (UnrarHeadertype.NewSubHeader.equals(headerType) && (flags & LHD_SOLID)!=0)
{
return(true);
}
return(false);
}
public long getPositionInFile() {
return positionInFile;
}
public short getFlags() {
return flags;
}
public short getHeadCRC() {
return headCRC;
}
public short getHeaderSize() {
return headerSize;
}
public UnrarHeadertype getHeaderType() {
return UnrarHeadertype.findType(headerType);
}
public void setPositionInFile(long positionInFile) {
this.positionInFile = positionInFile;
}
public void print(){
StringBuilder str =new StringBuilder();
str.append("HeaderType: " + getHeaderType());
str.append("\nHeadCRC: "+Integer.toHexString(getHeadCRC()));
str.append("\nFlags: "+Integer.toHexString(getFlags()));
str.append("\nHeaderSize: "+getHeaderSize());
str.append("\nPosition in file: "+getPositionInFile());
//logger.info(str.toString());
}
}
|
