INT 21 - Novell NetWare - FILE SERVER - GET SEMAPHORE INFORMATION
        AH = E3h subfn E2h
        DS:SI -> request buffer (see below)
        ES:DI -> reply buffer (see below)
Return: AL = status
            00h successful
            C6h no console rights
Notes:  this function is supported by Advanced NetWare 2.1+
        the calling workstation must have console operator privileges
SeeAlso: AH=E3h/SF=E1h

Format of request buffer:
Offset  Size    Description
 00h    WORD    length of following data (max 83h)
 02h    BYTE    E2h (subfunction "Get LAN Driver's Configuration Information")
 03h    WORD    last record seen (big-endian)
                0000h on first call
 05h    BYTE    length of semaphore's name (01h-7Fh)
 06h  N BYTEs   semaphore's name

Format of reply buffer:
Offset  Size    Description
 00h    WORD    (call) size of following results buffer (max 1FEh)
 02h    WORD    next request record (place in "last record" on next call)
                0000h if no more
 04h    WORD    number of logical connections opening semaphore (big-endian)
 06h    BYTE    semaphore value (-127 to 128)
 07h    BYTE    number of records following
 08h    Semaphore Information [array]
        Offset  Size    Description
         00h    WORD    logical connection number (big-endian)
         02h    BYTE    task number