musl/include/tar.h

#ifndef	_TAR_H
#define	_TAR_H

#define TSUID   04000
#define TSGID   02000
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || defined(_XOPEN_SOURCE)
#define TSVTX   01000
#endif
#define TUREAD  00400
#define TUWRITE 00200
#define TUEXEC  00100
#define TGREAD  00040
#define TGWRITE 00020
#define TGEXEC  00010
#define TOREAD  00004
#define TOWRITE 00002
#define TOEXEC  00001

#define REGTYPE  '0'
#define AREGTYPE '\0'
#define LNKTYPE  '1'
#define SYMTYPE  '2'
#define CHRTYPE  '3'
#define BLKTYPE  '4'
#define DIRTYPE  '5'
#define FIFOTYPE '6'
#define CONTTYPE '7'

#define TMAGIC "ustar"
#define TMAGLEN 6

#define TVERSION "00"
#define TVERSLEN 2

#endif