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PROLOG | NAME | SYNOPSIS | DESCRIPTION | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
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tar.h(0P) POSIX Programmer's Manual tar.h(0P)
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.
tar.h — extended tar definitions
#include <tar.h>
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.
None.
None.
None.
The Shell and Utilities volume of POSIX.1‐2017, pax(1p)
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(0P)
Pages that refer to this page: pax(1p)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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