A2osX/BIN/DNSINFO.S.txt
2015-11-22 23:30:06 +01:00

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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