INT 21 - Novell NetWare v3+ - GET PHYSICAL RECORD LOCKS BY FILE
        AX = F217h subfn EEh
        CX = length of request buffer in bytes
        DX = length of reply buffer in bytes
        DS:SI -> request buffer (see below)
        ES:DI -> reply buffer (see below)
Return: AL = status
        reply buffer filled

Format of request buffer:
Offset  Size    Description
 00h    WORD    0009h (length of following data)
 02h    BYTE    EEh (subfunction "Get Physical Record Locks by File")
 03h    BYTE    data stream number
 04h    BYTE    volume number
 05h    DWORD   directory entry number
 09h    WORD    last record seen (0000h for first call)

Format of reply buffer:
Offset  Size    Description
 00h    WORD    next request record
 02h    WORD    number of locks
 04h 17N BYTEs  lock records, one per lock
                Offset  Size    Description
                 00h    WORD    logged count
                 02h    WORD    number of shareable locks
                 04h    DWORD   start offset of record
                 08h    DWORD   end offset of record
                 0Ch    WORD    logical connection number
                 0Eh    WORD    task number
                 10h    BYTE    lock type

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