tar.h(7POSIX)

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" | Used in the magic field in the 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 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 .