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      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 
    104     private ZipConstants64() {}
    105 }
    106