    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one
    003 * or more contributor license agreements.  See the NOTICE file
    004 * distributed with this work for additional information
    005 * regarding copyright ownership.  The ASF licenses this file
    006 * to you under the Apache License, Version 2.0 (the
    007 * "License"); you may not use this file except in compliance
    008 * with the License.  You may obtain a copy of the License at
    009 *
    010 * http://www.apache.org/licenses/LICENSE-2.0
    011 *
    012 * Unless required by applicable law or agreed to in writing,
    013 * software distributed under the License is distributed on an
    014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015 * KIND, either express or implied.  See the License for the
    016 * specific language governing permissions and limitations
    017 * under the License.
    018 */
    019package org.apache.commons.compress.archivers.cpio;
    020
    021/**
    022 * All constants needed by CPIO.
    023 *
    024 * based on code from the jRPM project (jrpm.sourceforge.net)
    025 *
    026 */
    027public interface CpioConstants {
    028    /** magic number of a cpio entry in the new format */
    029    String MAGIC_NEW = "070701";
    030
    031    /** magic number of a cpio entry in the new format with crc */
    032    String MAGIC_NEW_CRC = "070702";
    033
    034    /** magic number of a cpio entry in the old ascii format */
    035    String MAGIC_OLD_ASCII = "070707";
    036
    037    /** magic number of a cpio entry in the old binary format */
    038    int MAGIC_OLD_BINARY = 070707;
    039
    040    // These FORMAT_ constants are internal to the code
    041
    042    /** write/read a CPIOArchiveEntry in the new format */
    043    short FORMAT_NEW = 1;
    044
    045    /** write/read a CPIOArchiveEntry in the new format with crc */
    046    short FORMAT_NEW_CRC = 2;
    047
    048    /** write/read a CPIOArchiveEntry in the old ascii format */
    049    short FORMAT_OLD_ASCII = 4;
    050
    051    /** write/read a CPIOArchiveEntry in the old binary format */
    052    short FORMAT_OLD_BINARY = 8;
    053
    054    /** Mask for both new formats */
    055    short FORMAT_NEW_MASK = 3;
    056
    057    /** Mask for both old formats */
    058    short FORMAT_OLD_MASK = 12;
    059
    060    /*
    061     * Constants for the MODE bits
    062     */
    063
    064    /** Mask for all file type bits. */
    065    int S_IFMT   = 0170000;
    066
    067 // http://www.opengroup.org/onlinepubs/9699919799/basedefs/cpio.h.html
    068 // has a list of the C_xxx constatnts
    069
    070    /** Defines a socket */
    071    int C_ISSOCK = 0140000;
    072
    073    /** Defines a symbolic link */
    074    int C_ISLNK  = 0120000;
    075
    076    /** HP/UX network special (C_ISCTG) */
    077    int C_ISNWK  = 0110000;
    078
    079    /** Defines a regular file */
    080    int C_ISREG  = 0100000;
    081
    082    /** Defines a block device */
    083    int C_ISBLK  = 0060000;
    084
    085    /** Defines a directory */
    086    int C_ISDIR  = 0040000;
    087
    088    /** Defines a character device */
    089    int C_ISCHR  = 0020000;
    090
    091    /** Defines a pipe */
    092    int C_ISFIFO = 0010000;
    093
    094
    095    /** Set user ID */
    096    int C_ISUID  = 0004000;
    097
    098    /** Set group ID */
    099    int C_ISGID  = 0002000;
    100
    101    /** On directories, restricted deletion flag. */
    102    int C_ISVTX  = 0001000;
    103
    104
    105    /** Permits the owner of a file to read the file */
    106    int C_IRUSR  = 0000400;
    107
    108    /** Permits the owner of a file to write to the file */
    109    int C_IWUSR  = 0000200;
    110
    111    /** Permits the owner of a file to execute the file or to search the directory */
    112    int C_IXUSR  = 0000100;
    113
    114
    115    /** Permits a file's group to read the file */
    116    int C_IRGRP  = 0000040;
    117
    118    /** Permits a file's group to write to the file */
    119    int C_IWGRP  = 0000020;
    120
    121    /** Permits a file's group to execute the file or to search the directory */
    122    int C_IXGRP  = 0000010;
    123
    124
    125    /** Permits others to read the file */
    126    int C_IROTH  = 0000004;
    127
    128    /** Permits others to write to the file */
    129    int C_IWOTH  = 0000002;
    130
    131    /** Permits others to execute the file or to search the directory */
    132    int C_IXOTH  = 0000001;
    133
    134    /** The special trailer marker */
    135    String CPIO_TRAILER = "TRAILER!!!";
    136
    137    /**
    138     * The default block size.
    139     *
    140     * @since 1.1
    141     */
    142    int BLOCK_SIZE = 512;
    143}