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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 .