tar.h(3)                   POSIX Programmer's Manual                  tar.h(3)



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

NAME
       tar.h -- extended tar definitions

SYNOPSIS
       #include <tar.h>

DESCRIPTION
       The <tar.h> header shall define the following symbolic constants with
       the indicated values.

       General definitions:

       +-----------+------------+----------------------------------------+
       |   Name    |   Value    |              Description               |
       +-----------+------------+----------------------------------------+
       |TMAGIC     |  "ustar"   | Used in the magic field in the ustar   |
       |           |            | header block, including the trailing   |
       |           |            | null byte.                             |
       |TMAGLEN    |     6      | Length in octets of the magic field.   |
       |TVERSION   |    "00"    | Used in the version field in the ustar |
       |           |            | header block, excluding the trailing   |
       |           |            | null byte.                             |
       |TVERSLEN   |     2      | Length in octets of the version field. |
       +-----------+------------+----------------------------------------+
       Typeflag field definitions:

       +-----------+------------+--------------------------------+
       |   Name    |   Value    |          Description           |
       +-----------+------------+--------------------------------+
       |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    |   Value    |                 Description                  |
       +-----------+------------+----------------------------------------------+
       |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 POSIX.1-2017, pax

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1-2017, Standard for Information Technology --
       Portable Operating System Interface (POSIX), The Open Group Base
       Specifications Issue 7, 2018 Edition, Copyright (C) 2018 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 .

       Any typographical or formatting errors that appear in this page are
       most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .



IEEE/The Open Group                  2017                             tar.h(3)
