jdk/src/share/classes/java/util/zip/ZipConstants64.java
author sherman
Thu, 02 Apr 2009 15:35:46 -0700
changeset 2438 21c111b51aa8
child 2592 ef26f663a2ba
permissions -rw-r--r--
4681995: Add support for large (> 4GB) zip/jar files Summary: The ZIP64 format support is added for > 4GB jar/zip files Reviewed-by: alanb, martin
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/*
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 * Copyright 1995-1996 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.  Sun designates this
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 * particular file as subject to the "Classpath" exception as provided
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 * by Sun in the LICENSE file that accompanied this code.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 */
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package java.util.zip;
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/*
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 * This class defines the constants that are used by the classes
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 * which manipulate Zip64 files.
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 */
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class ZipConstants64 {
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    /*
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     * ZIP64 constants
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     */
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    static final long ZIP64_ENDSIG = 0x06064b50L;  // "PK\006\006"
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    static final long ZIP64_LOCSIG = 0x07064b50L;  // "PK\006\007"
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    static final int  ZIP64_ENDHDR = 56;           // ZIP64 end header size
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    static final int  ZIP64_LOCHDR = 20;           // ZIP64 end loc header size
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    static final int  ZIP64_EXTHDR = 24;           // EXT header size
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    static final int  ZIP64_EXTID  = 0x0001;       // Extra field Zip64 header ID
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    static final int  ZIP64_MAGICCOUNT = 0xFFFF;
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    static final long ZIP64_MAGICVAL = 0xFFFFFFFFL;
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    /*
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     * Zip64 End of central directory (END) header field offsets
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     */
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    static final int  ZIP64_ENDLEN = 4;       // size of zip64 end of central dir
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    static final int  ZIP64_ENDVEM = 12;      // version made by
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    static final int  ZIP64_ENDVER = 14;      // version needed to extract
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    static final int  ZIP64_ENDNMD = 16;      // number of this disk
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    static final int  ZIP64_ENDDSK = 20;      // disk number of start
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    static final int  ZIP64_ENDTOD = 24;      // total number of entries on this disk
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    static final int  ZIP64_ENDTOT = 32;      // total number of entries
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    static final int  ZIP64_ENDSIZ = 40;      // central directory size in bytes
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    static final int  ZIP64_ENDOFF = 48;      // offset of first CEN header
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    static final int  ZIP64_ENDEXT = 56;      // zip64 extensible data sector
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    /*
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     * Zip64 End of central directory locator field offsets
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     */
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    static final int  ZIP64_LOCDSK = 4;       // disk number start
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    static final int  ZIP64_LOCOFF = 8;       // offset of zip64 end
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    static final int  ZIP64_LOCTOT = 16;      // total number of disks
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    /*
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     * Zip64 Extra local (EXT) header field offsets
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     */
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    static final int  ZIP64_EXTCRC = 4;       // uncompressed file crc-32 value
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    static final int  ZIP64_EXTSIZ = 8;       // compressed size, 8-byte
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    static final int  ZIP64_EXTLEN = 16;      // uncompressed size, 8-byte
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    private ZipConstants64() {}
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}