A2osX/BIN/DNSINFO.S.txt

NEW
PREFIX /A2OSX.BUILD
AUTO 4,1
				.LIST OFF
				.OP	65C02
				.OR	$2000
				.TF BIN/DNSINFO
*--------------------------------------
				.INB INC/MACROS.I
				.INB INC/A2OSX.I
				.INB INC/ETH.I
				.INB INC/LIBTCPIP.I
*--------------------------------------
ZPPTR1			.EQ ZPBIN
ZPPTR2			.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 0
				.DA CS.END-CS.START		Code Length To Relocate
				.DA 0					No Data Segment to Allocate
				.DA #16					SS
				.DA #4					ZP
				.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------				
.1				.DA CS.INIT
				.DA CS.RUN
				.DA CS.EVENT		
				.DA	CS.QUIT
L.LIBTCPIP		.DA LIBTCPIP
L.SSCANF.IP		.DA SSCANF.IP
L.MSG0			.DA MSG0
L.MSG1			.DA MSG1
L.MSG.USAGE		.DA MSG.USAGE
				.DA 0
*--------------------------------------
CS.INIT			>LDYA L.LIBTCPIP
				>SYSCALL LoadLib
				bcs .9
				
				sta hLIBTCPIP

.9				rts
*--------------------------------------
CS.RUN			ldy #S.PS.ARGC
				lda (pPs),y
				cmp #1
				bne .1
				jmp CS.RUN.DUMP
				
.1				cmp #3
				beq CS.RUN.ADD
				
				>PUSHBI 0
				>LDYA L.MSG.USAGE
				
				>SYSCALL printf

				lda #E.SYN
				sec				
				rts
*--------------------------------------
CS.RUN.ADD		>PUSHEA.G DST.IP+3
				>PUSHEA.G DST.IP+2
				>PUSHEA.G DST.IP+1
				>PUSHEA.G DST.IP
				>PUSHBI 8				4 PTRs
				>PUSHW L.SSCANF.IP
				lda #2
				>SYSCALL ArgV
				>SYSCALL sscanf
				bcs .9
				
				>PUSHEA.G DST.IP
				lda #1
				>SYSCALL ArgV
				>PUSHYA
				>LIBCALL hLIBTCPIP,LIBTCPIP.DNS.ADD
				bcs .99
				
				lda #0					tell TSKMGR that all done ok, but 
				sec						we do not want to stay in memory
				rts

.9				lda #E.SYN
				sec
.99				rts
*--------------------------------------
CS.RUN.DUMP		>LIBCALL hLIBTCPIP,LIBTCPIP.DNS.GetCache
				>STYA ZPPTR1
				>LDYA L.MSG0
				>SYSCALL puts

				lda #K.DNSCACHE.SIZE
				>STA.G EntryCount
				
.1				lda (ZPPTR1)
				beq .2

				ldy #S.DNSCACHE.TTL+4
				
.6				dey				
				lda (ZPPTR1),y
				>PUSHA
				cpy #S.DNSCACHE.TTL
				bne .6
				
				ldy #S.DNSCACHE.IP+4
				
.5				dey
				lda (ZPPTR1),y
				>PUSHA
				cpy #S.DNSCACHE.IP
				bne .5
				
				ldy #S.DNSCACHE.hNAME
				lda (ZPPTR1),y
				>SYSCALL GetMemPtr
				>PUSHYA

				ldy #S.DNSCACHE.ID
				>PUSHB (ZPPTR1),y
				iny
				>PUSHB (ZPPTR1),y
				
				>PUSHB (ZPPTR1)				Entry Status
				
				>PUSHBI 13
				>LDYA L.MSG1
				>SYSCALL printf

.2				lda ZPPTR1
				clc
				adc #S.DNSCACHE
				sta ZPPTR1
				bcc .3
				inc ZPPTR1+1
				
.3				>DEC.G EntryCount
				bne .1

.8				lda #0					tell TSKMGR that all done ok, but 
				sec						we do not want to stay in memory
				rts
*--------------------------------------
CS.EVENT		sec
				rts
*--------------------------------------
CS.QUIT			lda hLIBTCPIP
				beq .8
				>SYSCALL UnloadLib
				
.8				clc
				rts
*--------------------------------------
CS.END			
LIBTCPIP		.AZ "libtcpip"
hLIBTCPIP		.BS 1
SSCANF.IP		.AZ "%d.%d.%d.%d"
MSG0			.AZ "STS TR.ID Hostname                         IP Address      TTL"
MSG1			.AZ "$%h $%H %32s %03d.%03d.%03d.%03d %u\r\n"
MSG.USAGE		.AS "Usage : Add a static entry, DNSINFO <host> <IP>\r\n"
				.AZ "        Dump DNS Cache, DNSINFO\r\n"
*--------------------------------------
DS.START
DST.IP			.BS 4
EntryCount		.BS 1
DS.END
*--------------------------------------
MAN
SAVE /A2OSX.SRC/BIN/DNSINFO.S
ASM