* Copyright (c) 1992 Keith Muller.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
* This code is derived from software contributed to Berkeley by
* Keith Muller of the University of California, San Diego.
* %sccs.include.redist.c%
* @(#)tar.h 8.2 (Berkeley) %G%
* defines and data structures common to all tar formats
#define CHK_LEN 8 /* length of checksum field */
#define TNMSZ 100 /* size of name field */
#define NULLCNT 2 /* number of null blocks in trailer */
#define CHK_OFFSET 148 /* start of chksum field */
#define BLNKSUM 256L /* sum of checksum field using ' ' */
* Values used in typeflag field in all tar formats
* (only REGTYPE, LNKTYPE and SYMTYPE are used in old bsd tar headers)
#define REGTYPE '0' /* Regular File */
#define AREGTYPE '\0' /* Regular File */
#define LNKTYPE '1' /* Link */
#define SYMTYPE '2' /* Symlink */
#define CHRTYPE '3' /* Character Special File */
#define BLKTYPE '4' /* Block Special File */
#define DIRTYPE '5' /* Directory */
#define FIFOTYPE '6' /* FIFO */
#define CONTTYPE '7' /* high perf file */
* Mode field encoding of the different file types - values in octal
#define TSUID 04000 /* Set UID on execution */
#define TSGID 02000 /* Set GID on execution */
#define TSVTX 01000 /* Reserved */
#define TUREAD 00400 /* Read by owner */
#define TUWRITE 00200 /* Write by owner */
#define TUEXEC 00100 /* Execute/Search by owner */
#define TGREAD 00040 /* Read by group */
#define TGWRITE 00020 /* Write by group */
#define TGEXEC 00010 /* Execute/Search by group */
#define TOREAD 00004 /* Read by other */
#define TOWRITE 00002 /* Write by other */
#define TOEXEC 00001 /* Execute/Search by other */
* Pad with a bit mask, much faster than doing a mod but only works on powers
* of 2. Macro below is for block of 512 bytes.
#define TAR_PAD(x) ((512 - ((x) & 511)) & 511)
* structure of an old tar header as it appeared in BSD releases
char name
[TNMSZ
]; /* name of entry */
char size
[12]; /* size */
char mtime
[12]; /* modification time */
char chksum
[CHK_LEN
]; /* checksum */
char linkflag
; /* norm, hard, or sym. */
char linkname
[TNMSZ
]; /* linked to name */
* -o options for BSD tar to not write directories to the archive
#define TAR_NODIR "nodir"
#define TAR_OPTION "write_opt"
#define DEV_0 "/dev/rmt0"
#define DEV_1 "/dev/rmt1"
#define DEV_4 "/dev/rmt4"
#define DEV_5 "/dev/rmt5"
#define DEV_7 "/dev/rmt7"
#define DEV_8 "/dev/rmt8"
* Data Interchange Format - Extended tar header format - POSIX 1003.1-1990
#define TMAGIC "ustar" /* ustar and a null */
#define TVERSION "00" /* 00 and no null */
char name
[TNMSZ
]; /* name of entry */
char size
[12]; /* size */
char mtime
[12]; /* modification time */
char chksum
[CHK_LEN
]; /* checksum */
char typeflag
; /* type of file. */
char linkname
[TNMSZ
]; /* linked to name */
char magic
[TMAGLEN
]; /* magic cookie */
char version
[TVERSLEN
]; /* version */
char uname
[32]; /* ascii owner name */
char gname
[32]; /* ascii group name */
char devmajor
[8]; /* major device number */
char devminor
[8]; /* minor device number */
char prefix
[TPFSZ
]; /* linked to name */