A2osX/BIN/DNS.S.txt
2015-03-15 23:00:40 +01:00

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PR#3
PREFIX /A2OSX.BUILD
NEW
INC 1
AUTO 6
.LIST ON
.OP 65C02
.OR $2000
.TF BIN/DNS
*--------------------------------------
.INB INC/MACROS.I
.INB INC/A2OSX.I
.INB INC/KERNEL.I
.INB INC/LIBSTR.I
.INB INC/LIBTCPIP.I
*--------------------------------------
ZPPTR1 .EQ ZPBIN
*--------------------------------------
* Main entry point
*--------------------------------------
* Code signature and INIT table
*--------------------------------------
* CLD $D8
* JMP (*,x) $7C
* #JMPTABLE
* /JMPTABLE
*--------------------------------------
CS.START cld
jmp (.1,x)
.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
.DA 0
.DA CS.END-CS.START Code Length To Relocate
.DA DS.END-DS.START Data Segment to Allocate
*--------------------------------------
CS.INIT stz hHostName
stz hIP
>LIBLOADP L.LIBSTR
sta hLIBSTR
>LIBLOADP L.LIBTCPIP
sta hLIBTCPIP
ldy #S.PS.hARGS
lda (pPsContext),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 (pPsContext),y
>PUSHA
>PUSHBI $20 Push SEP=' '
>PUSHBI 2 Push 2 for getting IP
>SYSCALL SYS.PStrGetTkn
.91 bcs .9
sta hIP
>PUSHW L.IP
>PUSHW L.SSCANF.IP
lda hIP
>SYSCALL SYS.GetMemPtrA
>PUSHYA
>LIBCALL hLIBSTR,LIBSTR.SSCANF
bcs .9
>PUSHWI 1800 default TTL
>PUSHW L.IP
>PUSHB hHostName
>LIBCALL hLIBTCPIP,LIBTCPIP.DNS.ADD
bcs .99
lda #0 tell TSKMGR that all done ok, but
sec we do not want to stay in memory
rts
.9 lda #SYSMGR.ERRSYN
sec
.99 rts
CS.INIT.DUMP >LIBCALL hLIBTCPIP,LIBTCPIP.DNS.GETCACHE
>STYA ZPPTR1
>PUSHW L.MSG0
>LIBCALL hLIBSTR,LIBSTR.PRINTF
ldx #K.DNSCACHE.SIZE
.1 phx
lda (ZPPTR1)
beq .2
ldy #S.DNSCACHE.IP+3
lda (ZPPTR1),y
>PUSHA
dey
lda (ZPPTR1),y
>PUSHA
dey
lda (ZPPTR1),y
>PUSHA
dey
lda (ZPPTR1),y
>PUSHA
ldy #S.DNSCACHE.TTL
lda (ZPPTR1),y
pha
iny
lda (ZPPTR1),y
ply
>PUSHYA
ldy #S.DNSCACHE.hNAME
lda (ZPPTR1),y
>SYSCALL SYS.GetMemPtrA
>PUSHYA
>PUSHB (ZPPTR1)
>PUSHW L.MSG1
>LIBCALL hLIBSTR,LIBSTR.PRINTF
.2 lda ZPPTR1
clc
adc #S.DNSCACHE
sta ZPPTR1
bcc .3
inc ZPPTR1+1
.3 plx
dex
bne .1
lda #0 tell TSKMGR that all done ok, but
sec we do not want to stay in memory
rts
*--------------------------------------
CS.RUN
CS.EVENT clc
rts
*--------------------------------------
CS.QUIT lda hHostName
beq .1
>SYSCALL SYS.FreeMemA
.1 lda hIP
beq .2
>SYSCALL SYS.FreeMemA
.2 lda hLIBTCPIP
>SYSCALL SYS.UnloadLibA
lda hLIBSTR
>SYSCALL SYS.UnloadLibA
clc
rts
*--------------------------------------
CS.END
LIBSTR >PSTRING "libstr.o"
LIBTCPIP >PSTRING "libtcpip.o"
SSCANF.IP >PSTRING "%d.%d.%d.%d"
MSG0 >CSTRING "STS Hostname TTL IP Address\n"
MSG1 >CSTRING "$%h %32S %05D %d.%d.%d.%d\n"
DS.START
hLIBSTR .BS 1
hLIBTCPIP .BS 1
hHostName .BS 1
hIP .BS 1
IP .BS 4
DS.END
MAN
SAVE BIN/DNS.S
ASM