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TrueZIP is a Java based Virtual File System (VFS) to enable
transparent, multi-threaded read/write access to archive files
(ZIP, TAR etc.) as if they were directories.
Archive files may be arbitrarily nested and the nesting level is only
limited by heap and file system size.
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/*
* Copyright (C) 2005-2010 Schlichtherle IT Services
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package de.schlichtherle.util.zip;
/**
* A package private interface with some useful constants for ZIP compatible files.
* Public classes must not implement this interface - otherwise the
* constants become part of the public API.
*
* @author Christian Schlichtherle
* @version $Id$
*/
interface ZIP {
/** Local File Header signature. */
int LFH_SIG = 0x04034B50;
/** Data Descriptor signature. */
int DD_SIG = 0x08074B50;
/** Central File Header signature. */
int CFH_SIG = 0x02014B50;
/**
* This boolean field is set by the system property
* {@code de.schlichtherle.util.zip.zip64ext}.
* If this property is set to {@code true} (case is ignored),
* then ZIP64 extensions are always added when writing a ZIP archive file,
* regardless of its size.
* This system property is intended for testing purposes only.
* During normal operations, it should not be set as many
* third party tools would not treat the redundant ZIP64 extensions
* correctly.
* Note that it's impossible to inhibit ZIP64 extensions.
*/
boolean ZIP64_EXT
= Boolean.getBoolean("de.schlichtherle.util.zip.zip64ext");
/** Zip64 End Of Central Directory Record. */
int ZIP64_EOCDR_SIG = 0x06064b50;
/** Zip64 End Of Central Directory Locator. */
int ZIP64_EOCDL_SIG = 0x07064b50;
/** End Of Central Directory Record signature. */
int EOCDR_SIG = 0x06054B50;
/** The minimum length of the Local File Header record. */
int LFH_MIN_LEN =
/* local file header signature */ 4 +
/* version needed to extract */ 2 +
/* general purpose bit flag */ 2 +
/* compression method */ 2 +
/* last mod file time */ 2 +
/* last mod file date */ 2 +
/* crc-32 */ 4 +
/* compressed size */ 4 +
/* uncompressed size */ 4 +
/* file name length */ 2 +
/* extra field length */ 2;
/** The minimum length of the Central File Header record. */
int CFH_MIN_LEN =
/* central file header signature */ 4 +
/* version made by */ 2 +
/* version needed to extract */ 2 +
/* general purpose bit flag */ 2 +
/* compression method */ 2 +
/* last mod file time */ 2 +
/* last mod file date */ 2 +
/* crc-32 */ 4 +
/* compressed size */ 4 +
/* uncompressed size */ 4 +
/* filename length */ 2 +
/* extra field length */ 2 +
/* file comment length */ 2 +
/* disk number start */ 2 +
/* internal file attributes */ 2 +
/* external file attributes */ 4 +
/* relative offset of local header */ 4;
/** The minimum length of the Zip64 End Of Central Directory Record. */
int ZIP64_EOCDR_MIN_LEN =
/* zip64 end of central dir */
/* signature */ 4 +
/* size of zip64 end of central */
/* directory record */ 8 +
/* version made by */ 2 +
/* version needed to extract */ 2 +
/* number of this disk */ 4 +
/* number of the disk with the */
/* start of the central directory */ 4 +
/* total number of entries in the */
/* central directory on this disk */ 8 +
/* total number of entries in */
/* the central directory */ 8 +
/* size of the central directory */ 8 +
/* offset of start of central */
/* directory with respect to */
/* the starting disk number */ 8;
/** The length of the Zip64 End Of Central Directory Locator. */
int ZIP64_EOCDL_LEN =
/* zip64 end of central dir locator*/
/* signature */ 4 +
/* number of the disk with the */
/* start of the zip64 end of */
/* central directory */ 4 +
/* relative offset of the zip64 */
/* end of central directory record */ 8 +
/* total number of disks */ 4;
/** The minimum length of the End Of Central Directory record. */
int EOCDR_MIN_LEN =
/* end of central dir signature */ 4 +
/* number of this disk */ 2 +
/* number of the disk with the */
/* start of the central directory */ 2 +
/* total number of entries in the */
/* central directory on this disk */ 2 +
/* total number of entries in */
/* the central directory */ 2 +
/* size of the central directory */ 4 +
/* offset of start of central */
/* directory with respect to */
/* the starting disk number */ 4 +
/* zipfile comment length */ 2;
String UTF8 = "UTF-8";
/**
* The default character set used for entry names and comments in ZIP
* compatible files.
* This is {@value} for compatibility with Sun's JDK implementation.
* Note that you should use "IBM437" for ordinary ZIP files
* instead.
*/
String DEFAULT_CHARSET = UTF8;
/**
* The buffer size used for deflating and inflating.
* Optimized for reading and writing flash memory media.
*/
int FLATER_BUF_LENGTH = 64 * 1024;
/** Windows/DOS/FAT platform. */
short PLATFORM_FAT = 0;
/** Unix platform. */
short PLATFORM_UNIX = 3;
/** Compression method for uncompressed (stored) entries. */
int STORED = 0;
/** Compression method for compressed (deflated) entries. */
int DEFLATED = 8;
/** An empty byte array. */
byte[] EMPTY = new byte[0];
}