INT 21 - Novell NetWare 4.6, Alloy NTNX - LOG/LOCK RECORD (FCB)
AH = BFh
AL = flags
bit 0: lock as well as log record
1: non-exclusive lock
DS:DX -> opened FCB (see AH=0Fh)
BX:CX = offset
BP = lock timeout in timer ticks (1/18 sec)
SI:DI = length
Return: AL = error code (see AH=BCh)
SeeAlso: AH=C0h"NetWare",AH=C2h"NetWare"

See also: 21BC

21BF - Novell NetWare 4.6, Alloy NTNX - LOG/LOCK RECORD (FCB)