1 /*
2  * Copyright (c) 1995, 2013, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
6  * under the terms of the GNU General Public License version 2 only, as
7  * published by the Free Software Foundation.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 
26 package java.util.zip;
27 
28 /*
29  * This class defines the constants that are used by the classes
30  * which manipulate Zip64 files.
31  */
32 
33 class ZipConstants64 {
34 
35     /*
36      * ZIP64 constants
37      */
38     static final long ZIP64_ENDSIG = 0x06064b50L;  // "PK\006\006"
39     static final long ZIP64_LOCSIG = 0x07064b50L;  // "PK\006\007"
40     static final int  ZIP64_ENDHDR = 56;           // ZIP64 end header size
41     static final int  ZIP64_LOCHDR = 20;           // ZIP64 end loc header size
42     static final int  ZIP64_EXTHDR = 24;           // EXT header size
43     static final int  ZIP64_EXTID  = 0x0001;       // Extra field Zip64 header ID
44 
45     static final int  ZIP64_MAGICCOUNT = 0xFFFF;
46     static final long ZIP64_MAGICVAL = 0xFFFFFFFFL;
47 
48     /*
49      * Zip64 End of central directory (END) header field offsets
50      */
51     static final int  ZIP64_ENDLEN = 4;       // size of zip64 end of central dir
52     static final int  ZIP64_ENDVEM = 12;      // version made by
53     static final int  ZIP64_ENDVER = 14;      // version needed to extract
54     static final int  ZIP64_ENDNMD = 16;      // number of this disk
55     static final int  ZIP64_ENDDSK = 20;      // disk number of start
56     static final int  ZIP64_ENDTOD = 24;      // total number of entries on this disk
57     static final int  ZIP64_ENDTOT = 32;      // total number of entries
58     static final int  ZIP64_ENDSIZ = 40;      // central directory size in bytes
59     static final int  ZIP64_ENDOFF = 48;      // offset of first CEN header
60     static final int  ZIP64_ENDEXT = 56;      // zip64 extensible data sector
61 
62     /*
63      * Zip64 End of central directory locator field offsets
64      */
65     static final int  ZIP64_LOCDSK = 4;       // disk number start
66     static final int  ZIP64_LOCOFF = 8;       // offset of zip64 end
67     static final int  ZIP64_LOCTOT = 16;      // total number of disks
68 
69     /*
70      * Zip64 Extra local (EXT) header field offsets
71      */
72     static final int  ZIP64_EXTCRC = 4;       // uncompressed file crc-32 value
73     static final int  ZIP64_EXTSIZ = 8;       // compressed size, 8-byte
74     static final int  ZIP64_EXTLEN = 16;      // uncompressed size, 8-byte
75 
76     /*
77      * Language encoding flag EFS
78      */
79     static final int EFS = 0x800;       // If this bit is set the filename and
80                                         // comment fields for this file must be
81                                         // encoded using UTF-8.
82 
83     /*
84      * Constants below are defined here (instead of in ZipConstants)
85      * to avoid being exposed as public fields of ZipFile, ZipEntry,
86      * ZipInputStream and ZipOutputstream.
87      */
88 
89     /*
90      * Extra field header ID
91      */
92     static final int  EXTID_ZIP64 = 0x0001;    // Zip64
93     static final int  EXTID_NTFS  = 0x000a;    // NTFS
94     static final int  EXTID_UNIX  = 0x000d;    // UNIX
95     static final int  EXTID_EXTT  = 0x5455;    // Info-ZIP Extended Timestamp
96 
97     /*
98      * EXTT timestamp flags
99      */
100     static final int  EXTT_FLAG_LMT = 0x1;       // LastModifiedTime
101     static final int  EXTT_FLAG_LAT = 0x2;       // LastAccessTime
102     static final int  EXTT_FLAT_CT  = 0x4;       // CreationTime
103 
ZipConstants64()104     private ZipConstants64() {}
105 }
106