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.
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 .