NEW
PREFIX /A2OSX.BUILD
AUTO 4,1
				.LIST OFF
				.OP	65C02
				.OR	$2000
				.TF BIN/TELNET
*--------------------------------------
				.INB INC/MACROS.I
				.INB INC/A2OSX.I
				.INB INC/ETH.I
				.INB INC/LIBTCPIP.I
*--------------------------------------
TIMEOUT.MAX		.EQ 20					2 sec.
BUFSIZE			.EQ 256
*--------------------------------------
ZPIPCfgPtr		.EQ ZPBIN
ZPBufPtr		.EQ ZPBIN+2
ZPBufLen		.EQ ZPBIN+4
*--------------------------------------
*			File Header (16 Bytes)
*--------------------------------------
CS.START		cld
				jmp (.1,x)
				.DA #$61				6502,Level 1 (65c02)
				.DA #1					BIN Layout Version 1
				.DA 0
				.DA CS.END-CS.START		Code Length To Relocate
				.DA DS.END-DS.START		Data Segment to Allocate
				.DA #16					SS
				.DA #6					ZP
				.DA 0
*--------------------------------------
.1				.DA CS.INIT
				.DA CS.RUN
				.DA CS.DOEVENT		
				.DA	CS.QUIT
L.LIBTCPIP		.DA LIBTCPIP
L.Socket		.DA Socket
L.MSG.IPKO		.DA MSG.IPKO
L.MSG.USAGE		.DA MSG.USAGE
L.MSG.UNKNOWN	.DA MSG.UNKNOWN
L.MSG.HOSTOK	.DA MSG.HOSTOK
L.MSG.SKTKO		.DA MSG.SKTKO
L.MSG.SKTOK		.DA MSG.SKTOK
L.MSG.SKTERR	.DA MSG.SKTERR
				.DA 0
*--------------------------------------
CS.INIT			>LDYA L.LIBTCPIP
				>SYSCALL LoadLib
				bcs .9
				sta hLIBTCPIP

				lda (pPs)
				ora #S.PS.F.EVENT		Now accept events
				sta (pPs)
				
				clc

.9				rts
*--------------------------------------
CS.RUN			>LIBCALL hLIBTCPIP,LIBTCPIP.GET.IPCFG	is TCPIP loaded ?
				>STYA ZPIPCfgPtr
				
				lda (ZPIPCfgPtr)		Configured ?
				bmi CS.RUN.IPOK
				
				>LDYA L.MSG.IPKO
				>SYSCALL puts
				lda #K.E.SYN
				sec				
				rts
				
CS.RUN.IPOK		ldy #S.PS.ARGC
				lda (pPs),y

				beq .9
				
				jsr Init.Timeout

.2				>PUSHEA.G DST.IP
				lda #1
				>SYSCALL GetArg
				>PUSHYA
				>LIBCALL hLIBTCPIP,LIBTCPIP.HST.GETBYNAME
				bcc CS.RUN.HOSTOK	
				jsr Wait.Timeout
				bcc .2

				lda #1
				>SYSCALL GetArg
				>PUSHYA
				>LDYA L.MSG.UNKNOWN
				>SYSCALL printf
				bra .99
				
.9				>LDYA L.MSG.USAGE
				>SYSCALL puts

.99				lda #K.E.SYN
				sec				
				rts

CS.RUN.HOSTOK	lda #1
				>SYSCALL GetArg
				>PUSHYA
				
				ldy #DST.IP+3
				ldx #3
				
.1				lda (pData),y
				sta Socket.Dst.Addr,x
				>PUSHA
				dey
				dex
				bpl .1
				
				>PUSHBI 6
				>LDYA L.MSG.HOSTOK
				>SYSCALL printf
		
CS.RUN.OPENSKT	ldx #3
				ldy #S.IPCFG.IP+3
				
.1				lda (ZPIPCfgPtr),y
				sta Socket.Src.Addr,x
				dey
				dex
				bpl .1
				
				>PUSHW L.Socket
				>LIBCALL hLIBTCPIP,LIBTCPIP.SKT.New
				bcc .2
				
				>LDYA L.MSG.SKTKO
				>SYSCALL puts
				lda #K.E.SYN
				sec				
.9				rts
				
.2				txa
				>STA.G hSocket

				>LDYA L.MSG.SKTOK
				>SYSCALL puts
				
				>LDYAI BUFSIZE
				>SYSCALL getmem
				bcs .9
				>STYA ZPBufPtr
				txa
				>STA.G hBuf

CS.RUN.LOOP		>SLEEP

				>PUSHB.G hSocket
				>PUSHW ZPBufPtr
				>PUSHWI BUFSIZE
				>LIBCALL hLIBTCPIP,LIBTCPIP.SKT.Read
				bcc .1

				tay
				beq .2					no char
				rts
				
.1				>PUSHYA					len
				>PUSHW ZPBufPtr
				ldy #S.PS.hStdOut
				lda (pPs),y
				>SYSCALL write
				bcs CS.RUN.ERR
				
.2				>PUSHWI BUFSIZE			
				>PUSHW ZPBufPtr
				ldy #S.PS.hStdIn
				lda (pPs),y
				>SYSCALL read
				bcc .3
				tay
				beq CS.RUN.LOOP
				
				>PUSHA
				>PUSHBI 1
				>LDYA L.MSG.SKTERR
				>SYSCALL printf
				rts
				
.3				>STYA ZPBufLen

				lda (ZPBufPtr)
				cmp #3					Ctrl-C
				beq .9
				
				>PUSHB.G hSocket
				>PUSHW ZPBufPtr
				>PUSHW ZPBufLen
				>LIBCALL hLIBTCPIP,LIBTCPIP.SKT.Write
				bcs CS.RUN.ERR
				
				jmp CS.RUN.LOOP
				
.9				lda #0
				sec
CS.RUN.ERR		rts
*--------------------------------------
CS.DOEVENT		lda (pEvent)
				bpl .9					is it a TIMER event?
				
				ldy #TimeOut
				lda (pData),y
				beq .9
				
				dec
				sta (pData),y
				
.9				sec						do not discard TIMER event
				rts
*--------------------------------------
CS.QUIT			>LDA.G hSocket
				beq .1

*				>LIBCALL hLIBTCPIP,LIBTCPIP.SKT.Close
				
.1				>LDA.G hBuf
				beq .2
				
				>SYSCALL freemem
				
.2				lda hLIBTCPIP
				>SYSCALL UnloadLib
				clc
				rts
*--------------------------------------
Init.Timeout	ldy #TimeOut
				lda #TIMEOUT.MAX
				sta (pData),y
				rts
*--------------------------------------
Wait.TimeOut	sec
				ldy #TimeOut
				lda (pData),y
				beq .9

				clc
.9				rts
*--------------------------------------
CS.END
LIBTCPIP		.AZ "libtcpip.o"
hLIBTCPIP		.BS 1
MSG.IPKO		.AZ "TCP/IP Not Loaded/Configured."
MSG.USAGE		.AZ "Usage : TELNET <ip|host> [port]"
MSG.UNKNOWN		.AZ "%s: Unknown host\r\n"
MSG.HOSTOK		.AZ "Connecting to %d.%d.%d.%d (%s) ...\r\n"
MSG.SKTKO		.AZ "Failed to Open Socket."
MSG.SKTOK		.AZ "Connected."
MSG.SKTERR		.AZ "Socket Error : $%h\r\n"
*--------------------------------------
Socket			.DA #S.SOCKET.SOCK.STREAM
				.BS 1
				.BS 1
				.BS 1
Socket.Src.Addr	.BS 4
Socket.Src.Port	.DA 0					Dynamic
Socket.Dst.Addr	.BS 4
Socket.Dst.Port	.DA TCP.PORT.TELNET
*--------------------------------------
				.DUMMY
				.OR 0
DS.START
DST.IP			.BS 4
hBuf			.BS 1
hSocket			.BS 1
TimeOut			.BS 1
DS.END
				.ED
*--------------------------------------
MAN
SAVE /A2OSX.SRC/BIN/TELNET.S
ASM