Int 21/AH=3Fh

BW-TCP - GET DRIVER INFO

AH = 3Fh
BX = file handle for device "ETHDEV27"
CX = 002Bh
DS:DX -> buffer for driver info (see #01412)

Return:
CF clear if successful
AX = number of bytes actually read (0 if at EOF before call)
CF set on error
AX = error code (05h,06h) (see #01680 at AH=59h/BX=0000h)

Program: BW-TCP is a TCP/IP protocol stack by Beame & Whiteside Software

InstallCheck:
For the TCP/IP stack, test for the existence of the character device UDP-IP10

Note: The B&W socket library performs an INT 21/AX=4401h with DX=0060h before making this call to retrieve the driver information; one should also call the private API interrupt with AH=15h

Index:
Installation check;BW-TCP hardware driver

Index:
Installation check;BW-TCP TCPIP.SYS

Format of BW-TCP driver info: Offset Size Description (Table 01412) 00h WORD I/O base address 02h BYTE shared memory page (01h = segment 0100h, etc.) 03h BYTE interrupt vector for private API 04h BYTE IRQ used by board 05h WORD size of data buffer 07h WORD maximum transfer window 09h WORD time zone 0Bh BYTE address type (01h user, 04h RARP, 05h BOOTP) 0Ch DWORD internet address 10h WORD "value" ??? 12h BYTE subnet mask 13h WORD "ether_pointer" ??? 15h WORD offset in device driver of log server records (see #01413) 17h WORD offset in device driver of name server records (see #01413) 19h WORD offset in device driver of print server records (see #01413) 1Bh WORD offset in device driver of time server records (see #01413) 1Dh WORD offset in device driver of gateway records (see #01413) 1Fh WORD segment address of device driver 21h BYTE transfer size 22h 9 BYTEs network adapter board name ---11/21/91+ --- 23h BYTE ETHDEV version (major in high nybble, minor in low nybble) 24h BYTE ETHDEV revision 25h BYTE TCPIP version (major in high nybble, minor in low nybble) 26h BYTE TCPIP revision 27h BYTE BWRPC version (major in high nybble, minor in low nybble) 28h BYTE BWRPC revision 29h BYTE BWNFS version (major in high nybble, minor in low nybble) 2Ah BYTE BWNFS revision 2Bh BYTE Telnet version (major in high nybble, minor in low nybble) 2Ch BYTE Telnet revision 2Dh BYTE NETBIOS version (major in high nybble, minor in low nybble) 2Eh BYTE NETBIOS revision

Note: For each driver, if version=0, the driver is not installed or does not support the version check

Format of BW-TCP server records: Offset Size Description (Table 01413) 00h BYTE number of server records following 01h N DWORDs internet addresses of servers

Category: Network - Int 21h - B

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