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 .