A2osX/BIN/DNSINFO.S.txt

NEW
  AUTO 3,1
				.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
*--------------------------------------
				.DUMMY
				.OR ZPBIN
ZS.START
ZPPTR1			.BS 2
EntryCount		.BS 1
ZS.END			.ED
*--------------------------------------
*			File Header (16 Bytes)
*--------------------------------------
CS.START		cld
				jmp (.1,x)
				.DA #$61				6502,Level 1 (65c02)
				.DA #1					BIN Layout Version 1
				.DA #0					S.PS.F.EVENT
				.DA #0
				.DA CS.END-CS.START		Code Size (without Constants)
				.DA DS.END-DS.START		Data Segment Size
				.DA #32					Stack Size
				.DA #ZS.END-ZS.START	Zero Page Size
				.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------
.1				.DA CS.INIT
				.DA CS.RUN
				.DA CS.EVENT		
				.DA	CS.QUIT
L.LIBTCPIP		.DA LIBTCPIP
L.MSG.IPKO		.DA MSG.IPKO
L.SSCANF.IP		.DA SSCANF.IP
L.MSG0			.DA MSG0
L.MSG1			.DA MSG1
L.MSG1.Status	.DA MSG1.S
				.DA MSG1.P
				.DA MSG1.D
L.MSG.USAGE		.DA MSG.USAGE
				.DA 0
*--------------------------------------
CS.INIT			>LDYA L.LIBTCPIP
				>SYSCALL LoadLib
				bcs .9
				sta hLIBTCPIP

.9				rts
*--------------------------------------
CS.RUN			>LIBCALL hLIBTCPIP,LIBTCPIP.GETCFG	is TCPIP loaded ?
				>STYA ZPPTR1
				lda (ZPPTR1)			Configured ?
				bmi CS.RUN.IPOK

				>LDYA L.MSG.IPKO
				>SYSCALL PutS
				lda #E.SYN
				sec				
				rts

CS.RUN.IPOK		ldy #S.PS.ARGC
				lda (pPS),y
				bne .1

				jmp CS.RUN.DUMP

.1				cmp #2
				beq CS.RUN.ADD

				>PUSHW L.MSG.USAGE
				>PUSHBI 0
				>SYSCALL PrintF

				lda #E.SYN
				sec
				rts
*--------------------------------------
CS.RUN.ADD		lda #2
				>SYSCALL ArgV
				>PUSHYA
				>PUSHW L.SSCANF.IP
				
				>PUSHEA.G DST.IP
				>PUSHEA.G DST.IP+1
				>PUSHEA.G DST.IP+2
				>PUSHEA.G DST.IP+3

				>PUSHBI 8				4 PTRs
				>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 EntryCount

.1				lda (ZPPTR1)
				beq .6

				>PUSHW L.MSG1
				ldx #0
				lda (ZPPTR1)				Entry Status
				bmi .5

				asl
				tax
				
.5				>PUSHW L.MSG1.Status,x

				ldy #S.DNSCACHE.ID
				>PUSHB (ZPPTR1),y
				iny
				>PUSHB (ZPPTR1),y
			
				ldy #S.DNSCACHE.hNAME
				lda (ZPPTR1),y
				>SYSCALL GetMemPtr
				>PUSHYA

				ldy #S.DNSCACHE.IP

.3				lda (ZPPTR1),y
				>PUSHA
				iny
				cpy #S.DNSCACHE.IP+4
				bne .3

				ldy #S.DNSCACHE.TTL+4

.2				dey
				lda (ZPPTR1),y
				>PUSHA
				cpy #S.DNSCACHE.TTL
				bne .2

				>PUSHBI 14
				>SYSCALL PrintF

.6				lda ZPPTR1
				clc
				adc #S.DNSCACHE
				sta ZPPTR1
				bcc .7
				inc ZPPTR1+1
				
.7				dec EntryCount
				bne .1

				lda #0
				sec
				rts
*--------------------------------------
CS.EVENT		sec
				rts
*--------------------------------------
CS.QUIT			lda hLIBTCPIP
				beq .8
				>SYSCALL UnloadLib
.8				clc
				rts
*--------------------------------------
CS.END			
LIBTCPIP		.AZ "libtcpip"
hLIBTCPIP		.BS 1
MSG.IPKO		.AZ "TCP/IP Not Loaded/Configured."
SSCANF.IP		.AZ "%d.%d.%d.%d"
MSG0			.AZ "Status  TR.ID Hostname                         IP Address      TTL"
MSG1			.AZ "%7s $%H %32s %03d.%03d.%03d.%03d %u\r\n"
MSG1.S			.AZ "Static"
MSG1.P			.AZ "Pending"
MSG1.D			.AZ "Dynamic"
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
DS.END
*--------------------------------------
MAN
SAVE usr/src/bin/dnsinfo.s
ASM