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AH = 21h BX = network descriptor CX = length of buffer DS:DX -> buffer for return values SI = 0004h (ignored by v2.2-) DI = option (see #03468)
Return:
CF clear if successful DS:DX -> value (usually 32 bits) returned by selected option CF set on error AX = error code (see #03319 at INT 61"FTP Software")
Notes: This function is not supported by Beame&Whiteside's BWPCTCP v3.0a shim. V2.11 reportedly stores the actual 32-bit value of an option in DS:DX rather than using a buffer in memory
See Also: INT 61"FTP Software" - INT 61/AH=00h"PC/TCP" - INT 61/AH=20h
Category: Network - Int 61h - P
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