NAME

tar.h - extended tar definitions

SYNOPSIS

#include <tar.h>

DESCRIPTION

The <tar.h> header shall define header block definitions as follows.

General definitions:

Name	Description	Value
TMAGIC	"ustar"	ustar plus null byte.
TMAGLEN	6	Length of the above.
TVERSION	"00"	00 without a null byte.
TVERSLEN	2	Length of the above.

Typeflag field definitions:

Name	Description	Value
REGTYPE	'0'	Regular file.
AREGTYPE	'\0'	Regular file.
LNKTYPE	'1'	Link.
SYMTYPE	'2'	Symbolic link.
CHRTYPE	'3'	Character special.
BLKTYPE	'4'	Block special.
DIRTYPE	'5'	Directory.
FIFOTYPE	'6'	FIFO special.
CONTTYPE	'7'	Reserved.

Mode field bit definitions (octal):

Name	Description	Value
TSUID	04000	Set UID on execution.
TSGID	02000	Set GID on execution.
[XSI] TSVTX	01000	On directories, restricted deletion flag.
TUREAD	00400	Read by owner.
TUWRITE	00200	Write by owner special.
TUEXEC	00100	Execute/search by owner.
TGREAD	00040	Read by group.
TGWRITE	00020	Write by group.
TGEXEC	00010	Execute/search by group.
TOREAD	00004	Read by other.
TOWRITE	00002	Write by other.
TOEXEC	00001	Execute/search by other.

APPLICATION USAGE

None.

RATIONALE

None.

FUTURE DIRECTIONS

None.

SEE ALSO

The Shell and Utilities volume of IEEE Std 1003.1-2001, pax

CHANGE HISTORY

First released in Issue 3. Derived from the POSIX.1-1988 standard.

Issue 6

The SEE ALSO section now refers to pax since the Shell and Utilities volume of IEEE Std 1003.1-2001 no longer contains the tar utility.