A2osX/BIN/DNSINFO.S.txt

PR#3
PREFIX /A2OSX.SRC
NEW
INC 1
AUTO 6
				.LIST OFF
				.OP	65C02
				.OR	$2000
				.TF /A2OSX.BOOT/BIN/DNSINFO
*--------------------------------------
				.INB INC/MACROS.I
				.INB INC/A2OSX.I
				.INB INC/LIBSTR.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 0
				.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------				
.1				.DA CS.INIT
				.DA CS.RUN
				.DA CS.EVENT		
				.DA	CS.QUIT
L.LIBSTR		.DA LIBSTR
L.LIBTCPIP		.DA LIBTCPIP
L.SSCANF.IP		.DA SSCANF.IP
L.IP			.DA IP
L.MSG0			.DA MSG0
L.MSG1			.DA MSG1
L.DNSNAME		.DA DNSNAME
				.DA 0
*--------------------------------------
CS.INIT			stz hHostName
				stz hIP
				
				>LDYA L.LIBSTR
				>SYSCALL SYS.LoadLibYA
				sta hLIBSTR

				>LDYA L.LIBTCPIP
				>SYSCALL SYS.LoadLibYA
				sta hLIBTCPIP

				ldy #S.PS.hARGS
				lda (pPs),y
				bne CS.INIT.ADD
				jmp CS.INIT.DUMP

CS.INIT.ADD		>PUSHA
				>PUSHBI $20				Push SEP=' '
				>PUSHBI 1				Push 1 for getting hostname
				>SYSCALL SYS.PStrGetTkn
				bcs .91
				sta hHostName
				
				ldy #S.PS.hARGS
				lda (pPs),y
				>PUSHA
				>PUSHBI $20				Push SEP=' '
				>PUSHBI 2				Push 2 for getting IP
				>SYSCALL SYS.PStrGetTkn
.91				bcs .9

				sta hIP
				>PUSHW L.IP
				>PUSHW L.SSCANF.IP
				lda hIP
				>SYSCALL SYS.GetMemPtrA
				>PUSHYA
				>LIBCALL hLIBSTR,LIBSTR.SSCANF
				bcs .9
				
				>PUSHW L.IP
				lda hHostName
				>SYSCALL SYS.GetMemPtrA
				>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 #SYSMGR.ERRSYN
				sec
.99				rts
				
CS.INIT.DUMP	>LIBCALL hLIBTCPIP,LIBTCPIP.DNS.GETCACHE
				>STYA ZPPTR1
				>PUSHW L.MSG0
				>LIBCALL hLIBSTR,LIBSTR.PRINTF

				ldx #K.DNSCACHE.SIZE
				
.1				phx
				lda (ZPPTR1)
				beq .2

				ldy #S.DNSCACHE.RDATA+4
.5				dey
				lda (ZPPTR1),y
				>PUSHA
				cpy #S.DNSCACHE.RDATA
				bne .5
				
				ldy #S.DNSCACHE.TTL+4
.6				dey				
				lda (ZPPTR1),y
				>PUSHA
				cpy #S.DNSCACHE.TTL
				bne .6
				
				ldy #S.DNSCACHE.hNAME
				lda (ZPPTR1),y
				>SYSCALL SYS.GetMemPtrA
				>STYA ZPPTR2

				ldy #0						convert DNS-style string to PSTR
.10				lda (ZPPTR2),y
				tax
				beq .12

				lda #'.'
				sta DNSNAME,y
				
.11				iny
				lda (ZPPTR2),y
				sta DNSNAME,y
				dex
				bne .11
				iny
				bne .10
				
.12				dey
				sty DNSNAME
				
				>PUSHW L.DNSNAME
				>PUSHB (ZPPTR1)				Entry Status
				
				>PUSHW L.MSG1
				>LIBCALL hLIBSTR,LIBSTR.PRINTF

.2				lda ZPPTR1
				clc
				adc #S.DNSCACHE
				sta ZPPTR1
				bcc .3
				inc ZPPTR1+1
				
.3				plx
				dex
				beq .8
				jmp .1

.8				lda #0					tell TSKMGR that all done ok, but 
				sec						we do not want to stay in memory
				rts
*--------------------------------------
CS.RUN
CS.EVENT		clc
				rts
*--------------------------------------
CS.QUIT			lda hHostName
				beq .1
				>SYSCALL SYS.FreeMemA
.1				lda hIP
				beq .2
				>SYSCALL SYS.FreeMemA
.2				lda hLIBTCPIP
				>SYSCALL SYS.UnloadLibA
				lda hLIBSTR
				>SYSCALL SYS.UnloadLibA
				clc
				rts
*--------------------------------------
CS.END			
LIBSTR			>PSTRING "libstr.o"
LIBTCPIP		>PSTRING "libtcpip.o"
SSCANF.IP		>PSTRING "%d.%d.%d.%d"
MSG0			>CSTRING "STS Hostname                         TTL   IP Address\n"
MSG1			>CSTRING "$%h %32S %h%h%h%h %d.%d.%d.%d\n"
hLIBSTR			.BS	1
hLIBTCPIP		.BS 1
hHostName		.BS 1
hIP				.BS 1
IP				.BS 4
DNSNAME			.BS K.DNS.MAXLEN+1
MAN
SAVE BIN/DNSINFO.S
ASM