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Apache Commons Compress software defines an API for working with
compression and archive formats. These include: bzip2, gzip, pack200,
lzma, xz, Snappy, traditional Unix Compress, DEFLATE, DEFLATE64, LZ4,
Brotli, Zstandard and ar, cpio, jar, tar, zip, dump, 7z, arj.
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.commons.compress.archivers.cpio;
/**
* All constants needed by CPIO.
*
* based on code from the jRPM project (jrpm.sourceforge.net)
*
*/
public interface CpioConstants {
/** magic number of a cpio entry in the new format */
String MAGIC_NEW = "070701";
/** magic number of a cpio entry in the new format with crc */
String MAGIC_NEW_CRC = "070702";
/** magic number of a cpio entry in the old ascii format */
String MAGIC_OLD_ASCII = "070707";
/** magic number of a cpio entry in the old binary format */
int MAGIC_OLD_BINARY = 070707;
// These FORMAT_ constants are internal to the code
/** write/read a CPIOArchiveEntry in the new format */
short FORMAT_NEW = 1;
/** write/read a CPIOArchiveEntry in the new format with crc */
short FORMAT_NEW_CRC = 2;
/** write/read a CPIOArchiveEntry in the old ascii format */
short FORMAT_OLD_ASCII = 4;
/** write/read a CPIOArchiveEntry in the old binary format */
short FORMAT_OLD_BINARY = 8;
/** Mask for both new formats */
short FORMAT_NEW_MASK = 3;
/** Mask for both old formats */
short FORMAT_OLD_MASK = 12;
/*
* Constants for the MODE bits
*/
/** Mask for all file type bits. */
int S_IFMT = 0170000;
// http://www.opengroup.org/onlinepubs/9699919799/basedefs/cpio.h.html
// has a list of the C_xxx constatnts
/** Defines a socket */
int C_ISSOCK = 0140000;
/** Defines a symbolic link */
int C_ISLNK = 0120000;
/** HP/UX network special (C_ISCTG) */
int C_ISNWK = 0110000;
/** Defines a regular file */
int C_ISREG = 0100000;
/** Defines a block device */
int C_ISBLK = 0060000;
/** Defines a directory */
int C_ISDIR = 0040000;
/** Defines a character device */
int C_ISCHR = 0020000;
/** Defines a pipe */
int C_ISFIFO = 0010000;
/** Set user ID */
int C_ISUID = 0004000;
/** Set group ID */
int C_ISGID = 0002000;
/** On directories, restricted deletion flag. */
int C_ISVTX = 0001000;
/** Permits the owner of a file to read the file */
int C_IRUSR = 0000400;
/** Permits the owner of a file to write to the file */
int C_IWUSR = 0000200;
/** Permits the owner of a file to execute the file or to search the directory */
int C_IXUSR = 0000100;
/** Permits a file's group to read the file */
int C_IRGRP = 0000040;
/** Permits a file's group to write to the file */
int C_IWGRP = 0000020;
/** Permits a file's group to execute the file or to search the directory */
int C_IXGRP = 0000010;
/** Permits others to read the file */
int C_IROTH = 0000004;
/** Permits others to write to the file */
int C_IWOTH = 0000002;
/** Permits others to execute the file or to search the directory */
int C_IXOTH = 0000001;
/** The special trailer marker */
String CPIO_TRAILER = "TRAILER!!!";
/**
* The default block size.
*
* @since 1.1
*/
int BLOCK_SIZE = 512;
}