INT 21 - Novell NetWare - OPEN DATA STREAM                                      
	AX = F216h subfn 31h
	CX = length of request packet in bytes
	DX = length of reply buffer in bytes
	DS:SI -> request packet (see #02156)
	ES:DI -> reply buffer (see #02157)
Return: AX = status (see #02860 at INT 2F/AX=7A20h/BX=0000h)
SeeAlso: AH=F2h"Novell",AX=F216h/SF=30h


Format of NetWare "Open Data Stream" request packet:
Offset	Size	Description	(Table 02156)
 00h	WORD	length of following data
 02h	BYTE	31h (subfunction "Open Data Stream")
 03h	BYTE	data stream
 04h	BYTE	directory handle
 05h	BYTE	file attributes
 06h	BYTE	open rights
 07h	BYTE	length of filename
 08h  N BYTEs	filename (8.3)
SeeAlso: #02157


Format of NetWare "Open Data Stream" reply packet:
Offset	Size	Description	(Table 02157)
 00h	DWORDDoubleword; four bytes.	 Commonly used to hold a 32-bit segment:offset or selector:offset address.	file handle
SeeAlso: #02156