A2osX/SBIN/TELNETD.S.txt

NEW
PREFIX
AUTO 4,1
				.LIST OFF
				.OP	65C02
				.OR	$2000
				.TF SBIN/TELNETD
*--------------------------------------
				.INB INC/MACROS.I
				.INB INC/A2OSX.I
				.INB INC/ETH.I
				.INB INC/LIBTCPIP.I
				.INB INC/NET.TELNET.I
*--------------------------------------
CONN.MAX		.EQ 16
TIMEOUT.MAX		.EQ 30					30 sec.
*--------------------------------------
ZPIPCfgPtr		.EQ ZPBIN
ZPSktPtr		.EQ ZPBIN+2
*--------------------------------------
*			File Header (16 Bytes)
*--------------------------------------
CS.START		cld
				jmp (.1,x)
				.DA #$61				6502,Level 1 (65c02)
				.DA #1					BIN Layout Version 1
				.DA #S.PS.F.EVENT		S.PS.F
				.DA #0
				.DA CS.END-CS.START		CS
				.DA DS.END-DS.START		DS
				.DA #64					SS
				.DA #4					ZP				SS
				.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------				
.1				.DA CS.INIT
				.DA CS.RUN
				.DA CS.DOEVENT
				.DA	CS.QUIT
L.LIBTCPIP		.DA LIBTCPIP
L.SA.LOCAL		.DA SA.LOCAL
L.MSG.TCPWAIT	.DA MSG.TCPWAIT
L.MSG.INITOK	.DA MSG.INITOK
L.MSG.TCPIPERR	.DA MSG.TCPIPERR
L.MSG.SKTERR	.DA MSG.SKTERR
L.MSG.ABORT		.DA MSG.ABORT
L.MSG.INCOMING	.DA MSG.INCOMING
L.MSG.EXECERR	.DA MSG.EXECERR
L.NOD.Template	.DA NOD.Template
L.CMD.Template	.DA CMD.Template
				.DA 0				
*--------------------------------------
CS.INIT			>LDYA L.LIBTCPIP
				>SYSCALL LoadLib
				bcs .9
				sta hLIBTCPIP

.9				rts
*--------------------------------------
CS.RUN			jsr Init.Timeout

				>LDYA L.MSG.TCPWAIT
				>SYSCALL puts
				
.1				>LIBCALL hLIBTCPIP,LIBTCPIP.GET.IPCFG	is TCPIP loaded ?
				bcs .99
				>STYA ZPIPCfgPtr
				
				lda (ZPIPCfgPtr)		Configured ?
				bmi CS.RUN.INIT
				
				>SLEEP
				jsr Wait.Timeout
				bcc .1
				>SYSCALL GetChar
				bcs .1
				cmp #$03
				bne .1
				jmp CS.RUN.ABORT
				
.99				pha
				>LDYA L.MSG.TCPIPERR
				>SYSCALL puts
				pla
				sec	
				rts
				
CS.RUN.INIT		ldx #3
				ldy #S.IPCFG.IP+3
.1				lda (ZPIPCfgPtr),y
				sta SA.LOCAL+S.SOCKADDR.ADDR,x
				dey
				dex
				bpl .1
				
				>PUSHBI 0				no protocol
				lda #S.SOCKET.T.STREAM
				>LIBCALL hLIBTCPIP,LIBTCPIP.Socket
				bcs .9

				>STA.G hSrvSocket
				pha
				>PUSHW L.SA.LOCAL
				pla
				>LIBCALL hLIBTCPIP,LIBTCPIP.Bind
				bcs .9
				
				>LDA.G hSrvSocket
				>LIBCALL hLIBTCPIP,LIBTCPIP.Listen
				bcs .9
				
				>LDYA L.MSG.INITOK
				>SYSCALL puts

.2				>SLEEP
				jsr CS.RUN.SERVER
				bcs CS.RUN.ERR

*				>SYSCALL GetChar
*				bcs .2
				
*				cmp #$03
*				beq CS.RUN.ABORT

				bra .2
				
.9				pha
				>LDYA L.MSG.SKTERR
				>SYSCALL puts
				pla
				sec	
				rts
				
CS.RUN.ABORT	>LDYA L.MSG.ABORT
				>SYSCALL puts
				lda #3
				
CS.RUN.ERR		sec	
				rts
*--------------------------------------
CS.RUN.SERVER	>LDA.G hSrvSocket
				
				>LIBCALL hLIBTCPIP,LIBTCPIP.Accept
				bcs .8
				
				pha
				ldy #hSockets
				ldx #CONN.MAX
				
.1				lda (pData),y
				bne .2
				pla
				sta (pData),y
				
				bra  CS.RUN.CLIENT
				
.2				iny
				dex
				bne .1
				
				pla
				>LIBCALL hLIBTCPIP,LIBTCPIP.Shutdown
.8				clc
				rts
*--------------------------------------
CS.RUN.CLIENT	>STA.G hClientSocket
				>SYSCALL GetMemPtr
				>STYA ZPSktPtr

				ldx #3
				ldy #S.SOCKET.REM.ADDR+3
				
.3				>PUSHB (ZPSktPtr),y
				dey
				dex
				bpl .3
				
				>PUSHB.G hClientSocket

				>PUSHBI 5
				>LDYA L.MSG.INCOMING
				>SYSCALL printf
				
				>PUSHB.G hClientSocket
				>PUSHBI 1
				>PUSHW L.NOD.Template
				>LEA.G NodBuf
				>SYSCALL sprintf
				
				>PUSHB.G hClientSocket
				>PUSHW 0
				>LEA.G NodBuf
				>SYSCALL mknod
				bcs .9
				>STA.G hClientFile
				
				>PUSHEA.G NodBuf
				>PUSHBI 2
				>PUSHW L.CMD.Template
				>LEA.G CmdBuf
				>SYSCALL sprintf
				
				>LEA.G CmdBuf
				>SYSCALL puts
				
				>PUSHBI S.PS.F.DUPENV
				>LEA.G CmdBuf
				>SYSCALL execl
				bcc .8

				>PUSHA
				>PUSHBI 1
				>LDYA L.MSG.EXECERR
				>SYSCALL printf
				
				
.8				clc
.9				rts
*--------------------------------------
CS.DOEVENT		lda (pEvent)
				bpl .9					is it a TIMER event?
				
				>LDA.G TimeOut
				beq .9
				
				dec
				sta (pData),y
				
.9				sec						do not discard TIMER event
				rts
*--------------------------------------
CS.QUIT			ldx #CONN.MAX
				ldy #hSockets
				
.1				lda (pData),y
				beq .2
				
				phx
				phy
				>LIBCALL hLIBTCPIP,LIBTCPIP.Shutdown
				ply
				plx
				
.2				iny
				dex
				bne .1
				
				>LDA.G hSrvSocket
				beq .3
				>LIBCALL hLIBTCPIP,LIBTCPIP.Shutdown
				
.3				lda hLIBTCPIP
				beq .8
				>SYSCALL UnloadLib

.8				clc
				rts
*--------------------------------------
Init.Timeout	lda #TIMEOUT.MAX
				>STA.G TimeOut
				rts
*--------------------------------------
Wait.TimeOut	sec
				>LDA.G TimeOut
				beq .9
				clc
.9				rts
*--------------------------------------
CS.END
*--------------------------------------
hLIBTCPIP		.BS 1
LIBTCPIP		.AZ "libtcpip"
MSG.TCPWAIT		.AZ "TELNETD:Waiting for TCP/IP initializing..."
MSG.INITOK		.AZ "TELNETD:Init Ok, Listening."
MSG.TCPIPERR	.AZ "TELNETD:TCP/IP Not initialized properly"
MSG.SKTERR		.AZ "TELNETD:Listen Error."
MSG.ABORT		.AZ "TELNETD:User Aborted."
MSG.INCOMING	.AZ "TELNETD:Incoming Connection [SKT=%h] From : %d.%d.%d.%d\r\n"
MSG.EXECERR		.AZ "TELNETD:ExecL failed $%h."
*--------------------------------------
NOD.Template	.AZ "/DEV/TTY%h"
CMD.Template	.AZ "${ROOT}SBIN/GETTY -E %s ${ROOT}SBIN/LOGIN"
*--------------------------------------
SA.LOCAL		.DA #AF.INET			S.SOCKADDR.AF
				.BS 1
				.BS 4					S.SOCKADDR.ADDR
				.DA TCP.PORT.TELNET
*--------------------------------------
				.DUMMY
				.OR 0
DS.START
hSockets		.BS	CONN.MAX			pData
SktIndex		.BS 1
hSrvSocket		.BS 1
hClientSocket	.BS 1
hClientFile		.BS 1
TimeOut			.BS 1
NodBuf			.BS 11
CmdBuf			.BS 65
DS.END
				.ED
*--------------------------------------
MAN
SAVE USR/SRC/SBIN/TELNETD.S
ASM