The Single UNIX ® Specification, Version 2
Copyright © 1997 The Open Group


tar.h - extended tar definitions


#include <tar.h>


Header block definitions are:

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 XCU specification, tar.

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Copyright © 1997 The Open Group
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