1. /*

  2.  * @(#)ZipConstants.java	1.14 01/11/29

  3.  *

  4.  * Copyright 2002 Sun Microsystems, Inc. All rights reserved.

  5.  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

  6.  */

  7. 

  8. package java.util.zip;

  9. 

  10. /*

  11.  * This interface defines the constants that are used by the classes

  12.  * which manipulate ZIP files.

  13.  *

  14.  * @version	1.14, 11/29/01

  15.  * @author	David Connelly

  16.  */

  17. interface ZipConstants {

  18.     /*

  19.      * Header signatures

  20.      */

  21.     static long LOCSIG = 0x04034b50L;	// "PK\003\004"

  22.     static long EXTSIG = 0x08074b50L;	// "PK\007\008"

  23.     static long CENSIG = 0x02014b50L;	// "PK\001\002"

  24.     static long ENDSIG = 0x06054b50L;	// "PK\005\006"

  25. 

  26.     /*

  27.      * Header sizes in bytes (including signatures)

  28.      */

  29.     static final int LOCHDR = 30;	// LOC header size

  30.     static final int EXTHDR = 16;	// EXT header size

  31.     static final int CENHDR = 46;	// CEN header size

  32.     static final int ENDHDR = 22;	// END header size

  33. 

  34.     /*

  35.      * Local file (LOC) header field offsets

  36.      */

  37.     static final int LOCVER = 4;	// version needed to extract

  38.     static final int LOCFLG = 6;	// general purpose bit flag

  39.     static final int LOCHOW = 8;	// compression method

  40.     static final int LOCTIM = 10;	// modification time

  41.     static final int LOCCRC = 14;	// uncompressed file crc-32 value

  42.     static final int LOCSIZ = 18;	// compressed size

  43.     static final int LOCLEN = 22;	// uncompressed size

  44.     static final int LOCNAM = 26;	// filename length

  45.     static final int LOCEXT = 28;	// extra field length

  46. 

  47.     /*

  48.      * Extra local (EXT) header field offsets

  49.      */

  50.     static final int EXTCRC = 4;	// uncompressed file crc-32 value

  51.     static final int EXTSIZ = 8;	// compressed size

  52.     static final int EXTLEN = 12;	// uncompressed size

  53. 

  54.     /*

  55.      * Central directory (CEN) header field offsets

  56.      */

  57.     static final int CENVEM = 4;	// version made by

  58.     static final int CENVER = 6;	// version needed to extract

  59.     static final int CENFLG = 8;	// encrypt, decrypt flags

  60.     static final int CENHOW = 10;	// compression method

  61.     static final int CENTIM = 12;	// modification time

  62.     static final int CENCRC = 16;	// uncompressed file crc-32 value

  63.     static final int CENSIZ = 20;	// compressed size

  64.     static final int CENLEN = 24;	// uncompressed size

  65.     static final int CENNAM = 28;	// filename length

  66.     static final int CENEXT = 30;	// extra field length

  67.     static final int CENCOM = 32;	// comment length

  68.     static final int CENDSK = 34;	// disk number start

  69.     static final int CENATT = 36;	// internal file attributes

  70.     static final int CENATX = 38;	// external file attributes

  71.     static final int CENOFF = 42;	// LOC header offset

  72. 

  73.     /*

  74.      * End of central directory (END) header field offsets

  75.      */

  76.     static final int ENDSUB = 8;	// number of entries on this disk

  77.     static final int ENDTOT = 10;	// total number of entries

  78.     static final int ENDSIZ = 12;	// central directory size in bytes

  79.     static final int ENDOFF = 16;	// offset of first CEN header

  80.     static final int ENDCOM = 20;	// zip file comment length

  81. }