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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 | +} | |