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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 the following symbolic constants with the indicated values.
General definitions:
┌────────────────┬─────────────────┬──────────────────────────────────────────┐
│ Name │ Value │ Description │
├────────────────┼─────────────────┼──────────────────────────────────────────┤
│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 │ 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.1‐2008, pax
COPYRIGHT
Portions of this text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2013 Edition,
Standard for Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base
Specifications Issue 7, Copyright (C) 2013 by the Institute of Electrical and Electronics Engineers, Inc
and The Open Group. (This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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.unix.org/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 .