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| 1 | /* | ||
| 2 | * Copyright (c) 1995, 1996, 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 interface defines the constants that are used by the classes | ||
| 30 | * which manipulate ZIP files. | ||
| 31 | * | ||
| 32 | * @author David Connelly | ||
| 33 | */ | ||
| 34 | interface ZipConstants { | ||
| 35 | /* | ||
| 36 | * Header signatures | ||
| 37 | */ | ||
| 38 | static long LOCSIG = 0x04034b50L; // "PK\003\004" | ||
| 39 | static long EXTSIG = 0x08074b50L; // "PK\007\008" | ||
| 40 | static long CENSIG = 0x02014b50L; // "PK\001\002" | ||
| 41 | static long ENDSIG = 0x06054b50L; // "PK\005\006" | ||
| 42 | |||
| 43 | /* | ||
| 44 | * Header sizes in bytes (including signatures) | ||
| 45 | */ | ||
| 46 | static final int LOCHDR = 30; // LOC header size | ||
| 47 | static final int EXTHDR = 16; // EXT header size | ||
| 48 | static final int CENHDR = 46; // CEN header size | ||
| 49 | static final int ENDHDR = 22; // END header size | ||
| 50 | |||
| 51 | /* | ||
| 52 | * Local file (LOC) header field offsets | ||
| 53 | */ | ||
| 54 | static final int LOCVER = 4; // version needed to extract | ||
| 55 | static final int LOCFLG = 6; // general purpose bit flag | ||
| 56 | static final int LOCHOW = 8; // compression method | ||
| 57 | static final int LOCTIM = 10; // modification time | ||
| 58 | static final int LOCCRC = 14; // uncompressed file crc-32 value | ||
| 59 | static final int LOCSIZ = 18; // compressed size | ||
| 60 | static final int LOCLEN = 22; // uncompressed size | ||
| 61 | static final int LOCNAM = 26; // filename length | ||
| 62 | static final int LOCEXT = 28; // extra field length | ||
| 63 | |||
| 64 | /* | ||
| 65 | * Extra local (EXT) header field offsets | ||
| 66 | */ | ||
| 67 | static final int EXTCRC = 4; // uncompressed file crc-32 value | ||
| 68 | static final int EXTSIZ = 8; // compressed size | ||
| 69 | static final int EXTLEN = 12; // uncompressed size | ||
| 70 | |||
| 71 | /* | ||
| 72 | * Central directory (CEN) header field offsets | ||
| 73 | */ | ||
| 74 | static final int CENVEM = 4; // version made by | ||
| 75 | static final int CENVER = 6; // version needed to extract | ||
| 76 | static final int CENFLG = 8; // encrypt, decrypt flags | ||
| 77 | static final int CENHOW = 10; // compression method | ||
| 78 | static final int CENTIM = 12; // modification time | ||
| 79 | static final int CENCRC = 16; // uncompressed file crc-32 value | ||
| 80 | static final int CENSIZ = 20; // compressed size | ||
| 81 | static final int CENLEN = 24; // uncompressed size | ||
| 82 | static final int CENNAM = 28; // filename length | ||
| 83 | static final int CENEXT = 30; // extra field length | ||
| 84 | static final int CENCOM = 32; // comment length | ||
| 85 | static final int CENDSK = 34; // disk number start | ||
| 86 | static final int CENATT = 36; // internal file attributes | ||
| 87 | static final int CENATX = 38; // external file attributes | ||
| 88 | static final int CENOFF = 42; // LOC header offset | ||
| 89 | |||
| 90 | /* | ||
| 91 | * End of central directory (END) header field offsets | ||
| 92 | */ | ||
| 93 | static final int ENDSUB = 8; // number of entries on this disk | ||
| 94 | static final int ENDTOT = 10; // total number of entries | ||
| 95 | static final int ENDSIZ = 12; // central directory size in bytes | ||
| 96 | static final int ENDOFF = 16; // offset of first CEN header | ||
| 97 | static final int ENDCOM = 20; // zip file comment length | ||
| 98 | } | ||