constant TMAGIC
constant TMAGLEN
constant TVERSION
constant TVERSLEN

constant REGTYPE
constant AREGTYPE
constant LNKTYPE
constant SYMTYPE
constant CHRTYPE
constant BLKTYPE
constant DIRTYPE
constant FIFOTYPE
constant CONTTYPE

constant TSUID
constant TSGID
constant TSVTX
constant TUREAD
constant TUWRITE
constant TUEXEC
constant TGREAD
constant TGWRITE
constant TGEXEC
constant TOREAD
constant TOWRITE
constant TOEXEC

allow *_t