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<tar.h>(P)		   POSIX Programmer's Manual		    <tar.h>(P)

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the	 corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.

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.
	  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.

       The following sections are informative.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

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

COPYRIGHT
       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),	The  Open  Group  Base
       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
       event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard
       is  the	referee document. The original Standard can be obtained online
       at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group		     2003			    <tar.h>(P)

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