MODULE Wifi
macro OS_NETSOCKET ;D=address family (2=inet, 23=inet6), E=socket type (0x01 tcp/ip, 0x02 icmp, 0x03 udp/ip) ;out: L=SOCKET (if L < 0 then A=error)
ld l,0x01
ld c,nos.CMD_WIZNETOPEN
call nos.BDOS
endm
macro OS_NETCONNECT;A=SOCKET, DE=sockaddr ptr {unsigned char sin_family /*net type*/; unsigned short sin_port; struct in_addr sin_addr /*4 bytes IP*/; char sin_zero[8];}; out: if HL < 0 then A=error
ld l,0x03
ld c,nos.CMD_WIZNETOPEN
ex af,af'
call nos.BDOS
endm
macro OS_WIZNETWRITE;A=SOCKET, de=buffer_ptr, HL=sizeof(buffer) ; out: HL=count if HL < 0 then A=error
ld c,nos.CMD_WIZNETWRITE
ex af,af'
call nos.BDOS
endm
macro OS_WIZNETREAD;A=SOCKET, de=buffer_ptr, HL=sizeof(buffer) ; out: HL=count if HL < 0 then A=error
ld c,nos.CMD_WIZNETREAD
ex af,af'
call nos.BDOS
endm
macro OS_NETSHUTDOWN;A=SOCKET ; out: if HL < 0 then A=error
ld l,0x02
ld c,nos.CMD_WIZNETOPEN
ex af,af'
call nos.BDOS
endm
macro OS_GETDNS;DE= ptr to DNS buffer(4 bytes)
ld l, 0x08
ld c, nos.CMD_WIZNETOPEN
ex af,af' ;'
call nos.BDOS ;c=CMD
endm
init:
ret
host_ia:
.curport=$+1
defb 0,0,80,8,8,8,8
tcpSendZ
push hl
pop de
push de
call strLen
pop de
ld a,(sock_fd)
OS_WIZNETWRITE
ld hl,2
ld de,.rn
ld a,(sock_fd)
OS_WIZNETWRITE
ret
.rn defb "\r\n"
getPacket
ld de,(buffer_pointer)
ld a,0xfb
cp d
jp nz, letsgo
ld hl, .errMem : call DialogBox.msgBox
ld a,1
ld (closed),a
xor a
ld (bytes_avail),a
ret
.errMem:
db "Out of memory. Page loading error.",0
letsgo:
ld de,(buffer_pointer)
ld hl,1024
ld a,(sock_fd)
OS_WIZNETREAD
BIT 7,H
JR Z,RECEIVED ;ошибок нет
CP 35 ;ERR_EAGAIN
jp z, getPacket
;обработка ошибки
ld a,1
ld (closed), a
LD a,(sock_fd)
LD E,0
OS_NETSHUTDOWN
ld hl,(buffer_pointer)
ld de,outputBuffer
or a
sbc hl,de
ld (bytes_avail),HL
ret
RECEIVED
ex hl,de
ld hl,(buffer_pointer)
add hl,de
ld (buffer_pointer),hl
ld de,outputBuffer
or a
sbc hl,de
ld (bytes_avail),HL
continue
ret
openTCP ;DE - port_str, HL - domain name
push hl
call atohl
ld a,h,h,l,l,a
ld (host_ia.curport),hl
pop de
call dns_resolver
ld a,h : or l : jp z,reqErr
ld de,host_ia+3
ld bc,4
ldir
ld de,1+(2<<8)
OS_NETSOCKET
ld a,l : or a : jp m,reqErr
ld (sock_fd),a
ld de,host_ia
OS_NETCONNECT
ld a,l : or a : jp m,reqErr
xor a : ld (closed), a
ret
closed
defb 1
bytes_avail
defw 0
buffer_pointer
defw 0
reqErr
ld hl, .errMsg : call DialogBox.msgBox
scf
ret
.errMsg db "Socket failed!",0
dns_resolver: ;DE-domain name
ld (.httphostname),de
ld a,254;3
ld (.dns_err_count),a
.dns_err_loop
;push de
ld hl,.dns_head
ld de,outputBuffer
ld bc,6
ldir
ex de,hl
ld de,outputBuffer+7
ld (hl),b;0
ld c,256-7
ldir
ld de,outputBuffer+12
ld h,d
ld l,e
ld bc,.httphostname ;pop bc
.httphostname=$-2
.name_loop:
inc hl
ld a,(bc)
ld (hl),a
inc bc
cp '.'
jr z,.is_dot
or a
jr nz,.name_loop
.is_dot:
sbc hl,de
ex de,hl
dec e
ld (hl),e
inc e
add hl,de
ld d,h
ld e,l
or a
jr nz,.name_loop
inc a
inc hl
inc hl
ld (hl),a
inc hl
inc hl
ld (hl),a
inc hl
push hl
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
ld a, (.dns_ia2)
cp 0
jp nz, .skipgetdns
ld de, .dns_ia2;DE= ptr to DNS buffer(4 bytes)
OS_GETDNS
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
.skipgetdns:
ld de,0x0203
OS_NETSOCKET
ld a,l
ld (sock_fd),a
or a
jp m,.dns_exiterr
pop hl
push hl
ld de,0xffff&(-outputBuffer)
add hl,de
LD a,(sock_fd)
LD IX,outputBuffer
LD DE,.dns_ia
OS_WIZNETWRITE
bit 7,h
jr nz,.dns_exitcode
.dns_err_count=$+1
ld b,32
jr .recv_wait1
.recv_wait:
push bc
ld c,nos.CMD_YIELD
call nos.BDOS
pop bc
.recv_wait1:
push bc
ld hl,256
LD a,(sock_fd)
LD DE,outputBuffer
LD IX,outputBuffer
OS_WIZNETREAD
pop bc
bit 7,h
jr z,.recv_wait_end
djnz .recv_wait
jr .dns_exiterr
.recv_wait_end:
ld a,(outputBuffer+3)
and 0x0f
jr nz,.dns_exiterr
.dns_exitcode:
LD a,(sock_fd)
LD E,0
OS_NETSHUTDOWN
pop hl
.reqpars_l
inc hl
inc hl
inc hl
ld a,(hl)
ld de,7
add hl,de
ld b,(hl)
inc hl
ld c,(hl)
inc hl
dec a
ret z
cp 4
jr nz,.exiterr1
add hl,bc
jr .reqpars_l
.dns_exiterr:
pop af
LD a,(sock_fd)
LD E,0
OS_NETSHUTDOWN
ld a,(.dns_err_count)
add a,a
ld (.dns_err_count),a
jp nc,.dns_err_loop
.exiterr1:
ld hl,0
ret
.dns_head
defb 0x11,0x22,0x01,0x00,0x00,0x01
;struct sockaddr_in {unsigned char sin_family;unsigned short sin_port;
; struct in_addr sin_addr;char sin_zero[8];};
.dns_ia:
defb 0
db 0,53 ;port (big endian)
.dns_ia2:
db 0,0,0,0 ;ip (big endian)
sock_fd defb 0
ENDMODULE