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emailler/client/carts/bobcart.s

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.include "../inc/common.i"
;.ifndef KPR_API_VERSION_NUMBER
; .define EQU =
; .include "../inc/kipper_constants.i"
;.endif
HTTPD_TIMEOUT_SECONDS=5 ;what's the maximum time we let 1 connection be open for?
;DEBUG=1
VARTAB = $2D ;BASIC variable table storage
ARYTAB = $2F ;BASIC array table storage
FREETOP = $33 ;bottom of string text storage area
MEMSIZ = $37 ;highest address used by BASIC
VARNAM = $45 ;current BASIC variable name
VARPNT = $47 ; pointer to current BASIC variable value
SETNAM = $FFBD
SETLFS = $FFBA
LOAD = $FFD5
OPEN = $FFC0
CHKIN = $FFC6
READST = $FFB7 ; read status byte
CHRIN = $FFCF ; get a byte from file
CLOSE = $FFC3
MEMTOP = $FE25
TXTPTR = $7A ;BASIC text pointer
IERROR = $0300
ICRUNCH = $0304 ;Crunch ASCII into token
IQPLOP = $0306 ;List
IGONE = $0308 ;Execute next BASIC token
CHRGET = $73
CHRGOT = $79
CHROUT = $FFD2
GETBYT = $B79E ;BASIC routine
GETPAR = $B7EB ;Get a 16,8 pair of numbers
CHKCOM = $AEFD
NEW = $A642
CLR = $A65E
NEWSTT = $A7AE
GETVAR = $B0E7 ;find or create a variable
FRMEVL = $AD9E ;evaluate expression
FRESTR = $B6A3 ;free temporary string
FRMNUM = $AD8A ;get a number
GETADR = $B7F7 ;convert number to 16 bit integer
INLIN = $A560 ; read a line from keyboard
VALTYP=$0D ;00=number, $FF=string
LINNUM = $14 ;Number returned by GETPAR
crunched_line = $0200 ;Input buffer
.import copymem
.importzp copy_src
.importzp copy_dest
.import ip65_init
.import cfg_get_configuration_ptr
.import ip65_process
.import ip65_error
.import cfg_ip
.import cfg_dns
.import cfg_gateway
.import cfg_netmask
.import icmp_ping
.import icmp_echo_ip
.import dotted_quad_value
.import parse_dotted_quad
.import print_a
.import print_cr
.import cfg_mac
.import eth_driver_name
.import get_key_if_available
.import timer_read
.import native_to_ascii
.import ascii_to_native
.import eth_init
.import http_parse_request
.import http_get_value
.import http_variables_buffer
.import tcp_inbound_data_ptr
.import tcp_inbound_data_length
.import tcp_send_data_len
.import tcp_send
.import check_for_abort_key
.import tcp_connect_remote_port
.import tcp_remote_ip
.import tcp_listen
.import tcp_callback
.import tcp_close
.import __DATA_LOAD__
.import __DATA_RUN__
.import __DATA_SIZE__
.import __SELF_MODIFIED_CODE_LOAD__
.import __SELF_MODIFIED_CODE_RUN__
.import __SELF_MODIFIED_CODE_SIZE__
temp_ptr =copy_src
temp=copy_src
temp2=copy_dest
;.zeropage
;temp: .res 2
;temp2: .res 2
pptr=temp_ptr
.segment "CARTRIDGE_HEADER"
.word init ;cold start vector
.word $FE47 ;warm start vector
.byte $C3,$C2,$CD,$38,$30 ; "CBM80"
.byte "KIPBOB"
.byte $0,$0,$0 ;reserved for future use
.byte $0,$0,$0 ;reserved for future use
.byte $0,$0,$0 ;reserved for future use
.code
init:
;first let the kernal do a normal startup
sei
jsr $fda3 ;initialize CIA I/O
jsr $fd50 ;RAM test, set pointers
jsr $fd15 ;set vectors for KERNAL
jsr $ff5B ;init. VIC
cli ;KERNAL init. finished
;we need to set up BASIC as well
jsr $e453 ;set BASIC vectors
jsr $e3bf ;initialize zero page
;make some room for extra RAM
ldax #$5800
stax MEMSIZ
stax http_variables_buffer
ldax #welcome_banner
jsr print
lda #$90 ;'rest of banner
ldy #$E4
;print rest of startup banner
JSR $E42D
;relocate our r/w data
ldax #__DATA_LOAD__
stax copy_src
ldax #__DATA_RUN__
stax copy_dest
ldax #__DATA_SIZE__
jsr copymem
ldax #__SELF_MODIFIED_CODE_LOAD__
stax copy_src
ldax #__SELF_MODIFIED_CODE_RUN__
stax copy_dest
ldax #__SELF_MODIFIED_CODE_SIZE__
jsr copymem
ldx #5 ;Copy CURRENT vectors
@copy_old_vectors_loop:
lda ICRUNCH,x
sta oldcrunch,x
dex
bpl @copy_old_vectors_loop
ldx #5 ;Copy CURRENT vectors
install_new_vectors_loop:
lda vectors,x
sta ICRUNCH,x
dex
bpl install_new_vectors_loop
;copy error handlers:
ldax IERROR
stax olderror
ldax #error_handler
stax IERROR
;BASIC keywords installed, now bring up the ip65 stack
jsr ip65_init
bcc @init_ok
ldax #@no_nic
jsr print
@reboot:
jsr $e453 ;reset vectors
jsr $e3bf ;init BASIC
jsr $a644 ;NEW
jmp $e39d
@no_nic:
.byte 13,"RR-NET NOT FOUND",13,0
@init_ok:
jsr $A644 ;do a "NEW"
jmp $A474 ;"READY" prompt
; rts ;so BASIC will LOAD & RUN INDEX.BAS
welcome_banner:
.byte $93,$0d," **** C64 BASIC ON BAILS"
.byte 0
safe_getvar: ;if GETVAR doesn't find the desired variable name in the VARTABLE, a routine at $B11D will create it
;however that routine checks if the low byte of the return address of the caller is $2A. if it is,
;it assumes the caller is the routine at $AF28 which just wants to get the variable value, and
;returns a pointer to a dummy 'zero' pointer.
;so if user code that is calling GETVAR happens to be compiled to an address $xx28, it will
;trigger this check, and not create a new variable, which (from painful experience) will create
;a really nasty condition to debug!
;so vector to GETVAR via here, so the return address seen by $B11D is here, and never $xx28
jsr GETVAR
rts
.code
; CRUNCH -- If this is one of our keywords, then tokenize it
;
crunch:
jsr jmp_crunch ;First crunch line normally
ldy #05 ;Offset for KERNAL
;Y will contain line length+5
@loop:
sty temp
jsr isword ;Are we at a keyword?
bcs @gotcha
@next:
jsr nextchar
bne @loop ;Null byte marks end
sta crunched_line-3,Y ;00 line number
lda #$FF ;'tis what A should be
rts ;Buh-bye
; Insert token and crunch line
@gotcha:
ldx temp ;If so, A contains opcode
sta crunched_line-5,X
@move:
inx
lda crunched_line-5,Y
sta crunched_line-5,X ;Move text backwards
beq @next
iny
bpl @move
; ISWORD -- Checks to see if word is
; in table. If a word is found, then
; C is set, Y is one past the last char
; and A contains opcode. Otherwise,
; carry is clear.
;
; On entry, TEMP must contain current
; character position.
;
isword:
ldx #00
@loop:
ldy temp
@loop2:
lda keywords,x
beq @notmine
cmp #$E0
bcs @done ;Tokens are >=$E0
cmp crunched_line-5,Y
bne @next
iny ;Success! Go to next char
inx
bne @loop2
@next:
inx
lda keywords,x ;Find next keyword
cmp #$E0
bcc @next
inx
bne @loop ;And check again
@notmine:
clc
@done:
rts
; NEXTCHAR finds the next char
; in the buffer, skipping
; spaces and quotes. On
; entry, TEMP contains the
; position of the last spot
; read. On exit, Y contains
; the index to the next char,
; A contains that char, and Z is set if at end of line.
nextchar:
ldy temp
@loop:
iny
lda crunched_line-5,Y
beq @done
cmp #$8F ;REM
bne @cont
lda #00
@skip:
sta temp2 ;Find matching character
@loop2:
iny
lda crunched_line-5,Y
beq @done
cmp temp2
bne @loop2 ;Skip to end of line
beq @loop
@cont:
cmp #$20 ;space
beq @loop
cmp #$22 ;quote
beq @skip
@done:
rts
;
; LIST -- patches the LIST routine
; to list our new tokens correctly.
;
list:
cmp #$E0
bcc @notmine ;Not my token
cmp #HITOKEN
bcs @notmine
bit $0F ;Check for quote mode
bmi @notmine
sec
sbc #$DF ;Find the corresponding text
tax
sty $49
ldy #00
@loop:
dex
beq @done
@loop2:
iny
lda keywords,y
cmp #$E0
bcc @loop2
iny
bne @loop
@done:
lda keywords,y
cmp #$91 ;is it "ON"?
bne @not_on
lda #'O'
jsr CHROUT
lda #'N'
bne @skip
@not_on:
cmp #$9B ;is it "LIST"?
bne @not_list
lda #'L'
jsr CHROUT
lda #'I'
jsr CHROUT
lda #'S'
jsr CHROUT
lda #'T'
bne @skip
@not_list:
lda keywords,y
bmi @out ;is it >=$80?
@skip:
jsr CHROUT
iny
bne @done
@out:
cmp #$E0 ;It might be BASIC token
bcs @cont
ldy $49
@notmine:
and #$FF
jmp (oldlist)
@cont:
ldy $49
jmp $A700 ;Normal exit
;
; EXECUTE -- if this is one of our new
; tokens, then execute it.
execute:
jsr CHRGET
execute_a:
php
cmp #':' ;is it a colon?
beq execute;if so, skip over and go to next token
cmp #$8B ;is it 'IF'?
bne @not_if
lda #$E0 ;our dummy IF token
@not_if:
cmp #$E0
bcc @notmine
cmp #HITOKEN
bcs @notmine
plp
jsr @disp
jmp NEWSTT
@disp:
eor #$E0
asl ;multiply by 2
tax
lda token_routines+1,x
pha
lda token_routines,x
pha
jmp CHRGET ;exit to routine (via RTS)
@notmine:
plp
cmp #0 ;reset flags
jmp $A7E7
;the standard BASIC IF routine calls the BASIC EXECUTE routine directly,
;without going through the vector. That means an extended keyword following THEN
;will lead to a syntax error. So we have to reimpliment IF here
;this is taken from TransBASIC - The Transactor, vol 5, Issue 04 (March 1985) page 34
if_keyword:
jsr FRMEVL ;evaluate expression
jsr CHRGOT
cmp #$89 ;is next token GOTO?
beq @ok
lda #$A7 ;is next token THEN
jsr $AEFF ;will generate SYNTAX ERROR if not
@ok:
jsr CHRGOT
ldx $61 ;result of expression : 0 means false
bne @expression_was_true
jmp $A93B ;go to REM implementation - skips rest of line
@expression_was_true:
bcs @not_numeric;CHRGOT clears carry flag if current char is a number
jmp $A8A0 ;do a GOTO
@not_numeric:
pla
pla ;pop the return address off the stack
jsr CHRGOT
jmp execute_a ;execute current token
;emit the 4 bytes pointed at by AX as dotted decimals
emit_dotted_quad:
sta pptr
stx pptr + 1
ldy #0
lda (pptr),y
jsr emit_decimal
lda #'.'
jsr emit_a
ldy #1
lda (pptr),y
jsr emit_decimal
lda #'.'
jsr emit_a
ldy #2
lda (pptr),y
jsr emit_decimal
lda #'.'
jsr emit_a
ldy #3
lda (pptr),y
jsr emit_decimal
rts
emit_decimal: ;emit byte in A as a decimal number
pha
sta temp_bin ;save
sed ; Switch to decimal mode
lda #0 ; Ensure the result is clear
sta temp_bcd
sta temp_bcd+1
ldx #8 ; The number of source bits
:
asl temp_bin+0 ; Shift out one bit
lda temp_bcd+0 ; And add into result
adc temp_bcd+0
sta temp_bcd+0
lda temp_bcd+1 ; propagating any carry
adc temp_bcd+1
sta temp_bcd+1
dex ; And repeat for next bit
bne :-
cld ;back to binary
pla ;get back the original passed in number
bmi @emit_hundreds ; if N is set, the number is >=128 so emit all 3 digits
cmp #10
bmi @emit_units
cmp #100
bmi @emit_tens
@emit_hundreds:
lda temp_bcd+1 ;get the most significant digit
and #$0f
clc
adc #'0'
jsr emit_a
@emit_tens:
lda temp_bcd
lsr
lsr
lsr
lsr
clc
adc #'0'
jsr emit_a
@emit_units:
lda temp_bcd
and #$0f
clc
adc #'0'
jsr emit_a
rts
print:
sta pptr
stx pptr + 1
@print_loop:
ldy #0
lda (pptr),y
beq @done_print
jsr print_a
inc pptr
bne @print_loop
inc pptr+1
bne @print_loop ;if we ever get to $ffff, we've probably gone far enough ;-)
@done_print:
rts
extract_string:
jsr FRMEVL
jsr FRESTR ;if not string, will create type mismatch error
sta param_length
tay
lda #0
sta transfer_buffer,y
dey
@loop:
lda ($22),y
sta transfer_buffer,y
dey
bpl @loop
jmp FRESTR ;free up the temp string created by FRMEVL
;get a string value from BASIC command, turn into a 32 bit IP address,save it in the 4 bytes pointed at by AX
get_ip_parameter:
stax temp2
jsr extract_string
ldax #transfer_buffer
jsr parse_dotted_quad
bcc @ok
@error:
ldax #address_resolution
jmp print_error
@ok:
ldax #dotted_quad_value
ldx #4
@copy_dotted_quad_value:
lda dotted_quad_value,y
sta (temp2),y
iny
dex
bne @copy_dotted_quad_value
rts
reset_string:
ldy #<string_buffer
sty current_output_ptr
ldy #>string_buffer
sty current_output_ptr+1
rts
print_dotted_quad:
jsr reset_string
jsr emit_dotted_quad
make_null_terminated_and_print:
lda #0
jsr emit_a
ldax #string_buffer
jmp print
print_integer:
sta $63
stx $62
jmp $bdd1 ;BASIC routine
print_decimal:
jsr reset_string
jsr emit_decimal
jmp make_null_terminated_and_print
print_mac:
jsr reset_string
jsr emit_mac
jmp make_null_terminated_and_print
;print 6 bytes printed at by AX as a MAC address
emit_mac:
stax pptr
ldy #0
@one_mac_digit:
tya ;just to set the Z flag
pha
beq @dont_print_colon
lda #':'
jsr emit_a
@dont_print_colon:
pla
tay
lda (pptr),y
jsr emit_hex
iny
cpy #06
bne @one_mac_digit
rts
emit_hex:
pha
pha
lsr
lsr
lsr
lsr
tax
lda hexdigits,x
jsr emit_a
pla
and #$0F
tax
lda hexdigits,x
jsr emit_a
pla
rts
print_hex:
jsr reset_string
jsr emit_hex
jmp make_null_terminated_and_print
print_error:
jsr print
ldax #error
jsr print
lda ip65_error
jsr print_hex
jsr print_cr
sec
rts
get_optional_byte:
jsr CHRGOT
beq @no_param ;leave X as it was
jsr CHKCOM ;make sure next char is a comma (and skip it)
jsr CHRGOT
beq @eol
jsr GETBYT
@no_param:
rts
@eol:
jmp $AF08 ;SYNTAX ERROR
ipcfg_keyword:
ldax #interface_type
jsr print
ldax #eth_driver_name
jsr print
jsr print_cr
ldax #mac_address_msg
jsr print
ldax #cfg_mac
jsr print_mac
jsr print_cr
ldax #ip_address_msg
jsr print
ldax #cfg_ip
jsr print_dotted_quad
jsr print_cr
ldax #netmask_msg
jsr print
ldax #cfg_netmask
jsr print_dotted_quad
jsr print_cr
ldax #gateway_msg
jsr print
ldax #cfg_gateway
jsr print_dotted_quad
jsr print_cr
rts
ping_keyword:
ldax #icmp_echo_ip
jsr get_ip_parameter
bcc @no_error
rts
@no_error:
;is there an optional parameter?
ldx #3
jsr get_optional_byte
stx ping_counter
ldax #pinging
jsr print
ldax #icmp_echo_ip
jsr print_dotted_quad
jsr print_cr
@ping_loop:
jsr icmp_ping
bcs @error
lda #'.'
@print_and_loop:
jsr print_a
lda $cb ;current key pressed
cmp #$3F ;RUN/STOP?
beq @done
dec ping_counter
bne @ping_loop
@done:
jmp print_cr
@error:
jsr print_error
lda #'!'
jmp @print_and_loop
myip_keyword:
ldax #cfg_ip
jmp get_ip_parameter
gateway_keyword:
ldax #cfg_gateway
jmp get_ip_parameter
netmask_keyword:
ldax #cfg_netmask
jmp get_ip_parameter
mac_keyword:
jsr extract_string
ldy #2
:
lda transfer_buffer,y
sta cfg_mac+3,y
dey
bpl:-
jsr eth_init
rts
skip_comma_get_integer:
jsr CHRGOT
jsr CHKCOM ;make sure next char is a comma (and skip it)
get_integer:
jsr CHRGOT
beq @eol
jsr FRMNUM
jsr GETADR
ldax LINNUM
@no_param:
rts
@eol:
jmp $AF08 ;SYNTAX ERROR
hook_keyword:
jsr extract_string
ldax #transfer_buffer
jsr skip_comma_get_integer
stax handler_address
jsr find_hook
bcc @existing_entry
lda hooks
cmp #MAX_HOOKS
bmi @got_space
ldx #$10 ;OUT OF MEMORY
jmp $A437 ;print error
@got_space:
clc
lda #0
adc hooks
adc hooks
adc hooks
adc hooks
adc hooks
adc hooks
tay
inc hooks
@existing_entry:
;y now points to free slot in hook table
lda transfer_buffer
sta hook_table,y
lda transfer_buffer+1
sta hook_table+1,y
lda param_length
sta hook_table+2,y
lda hash
sta hook_table+3,y
lda handler_address
sta hook_table+4,y
lda handler_address+1
sta hook_table+5,y
rts
goto:
sta $14
sta $39
stx $15
stx $3a
jmp $a8a3 ;GOTO keyword
find_hook:
jsr calc_hash
ldy #0
ldx hooks
beq @done
@compare_one_entry:
lda transfer_buffer
cmp hook_table,y
bne @nope
lda transfer_buffer+1
cmp hook_table+1,y
bne @nope
lda param_length
cmp hook_table+2,y
bne @nope
lda hash
cmp hook_table+3,y
bne @nope
;found it!
clc
rts
@nope:
dex
beq @done
iny
iny
iny
iny
iny
iny
bne @compare_one_entry
@done:
sec
rts
calc_hash:
clc
lda #0
ldy param_length
beq @done
@loop:
adc transfer_buffer,y
dey
bne @loop
@done:
sta hash
rts
yield_keyword:
jsr flush_keyword
jsr tcp_close
.ifdef DEBUG
dec $d020
.endif
jmp httpd_start
gosub:
bang_keyword:
jsr extract_string
lda sent_header
bne :+
jsr send_header
:
ldy #0
sty string_ptr
@loop:
lda transfer_buffer,y
jsr xmit_a
inc string_ptr
ldy string_ptr
cpy param_length
bne @loop
rts
got_http_request:
jsr http_parse_request
ldax #path
jsr print
lda #$02
jsr http_get_value
stax copy_src
jsr print
jsr print_cr
ldy #0
@copy_path:
lda (copy_src),y
beq @done
sta transfer_buffer,y
iny
bne @copy_path
@done:
sty string_length
lda #0
sta transfer_buffer,y
sty param_length
sty tmp_length
clc
lda #'P'
sta VARNAM
lda #'A'+$80
jmp @set_var_value
@copy_vars:
iny
lda (copy_src),y
beq @last_var
tax ;var name
iny
clc
tya
adc copy_src
sta copy_src
bcc :+
inc copy_src+1
:
ldy #0
:
lda (copy_src),y
beq @end_of_var
iny
bne :-
@end_of_var:
sty tmp_length
clc
stx VARNAM
lda #$80
@set_var_value:
sta VARNAM+1
jsr safe_getvar
ldy #0
lda tmp_length
sta (VARPNT),y
iny
lda copy_src
sta (VARPNT),y
iny
lda copy_src+1
sta (VARPNT),y
ldy tmp_length
jmp @copy_vars
@last_var:
jsr find_hook
bcc @got_hook
ldax default_line_number
jmp goto
@got_hook:
lda hook_table+4,y
ldx hook_table+5,y
jmp goto
;start a HTTP server
;this routine will stay in an endless loop that is broken only if user press the ABORT key (runstop on a c64)
;inputs:
; none
;outputs:
; none
httpd_start:
ldx top_of_stack
txs
ldax #listening
jsr print
ldax #cfg_ip
jsr print_dotted_quad
lda #':'
jsr print_a
ldax httpd_port_number
jsr print_integer
jsr print_cr
lda #0
sta $dc08 ;make sure TOD clock is started
@listen:
jsr tcp_close
ldax httpd_io_buffer
stax tcp_buffer_ptr
ldax #http_callback
stax tcp_callback
ldax httpd_port_number
jsr tcp_listen
bcs @abort_key_pressed
@connect_ok:
.ifdef DEBUG
inc $d020
.endif
ldax #connection_from
jsr print
ldax #tcp_remote_ip
jsr print_dotted_quad
lda #':'
jsr print_a
ldax tcp_connect_remote_port
jsr print_integer
jsr print_cr
lda #0
sta connection_closed
sta found_eol
clc
lda $dc09 ;time of day clock: seconds (in BCD)
sed
adc #HTTPD_TIMEOUT_SECONDS
cmp #$60
bcc @timeout_set
sec
sbc #$60
@timeout_set:
cld
sta connection_timeout_seconds
@main_polling_loop:
jsr ip65_process
jsr check_for_abort_key
bcc @no_abort
@abort_key_pressed:
lda #0
sta error_handling_mode
ldx #$1E ;break
jmp $e38b ;print error message, warm start BASIC
@no_abort:
lda found_eol
bne @got_eol
lda $dc09 ;time of day clock: seconds
cmp connection_timeout_seconds
beq @connection_timed_out
lda connection_closed
beq @main_polling_loop
@connection_timed_out:
.ifdef DEBUG
dec $d020
.endif
jmp @listen
@got_eol:
jsr reset_output_buffer
ldy #$FF
:
iny
lda status_ok,y
sta status_code_buffer,y
bne :-
ldy #$FF
:
iny
lda text_html,y
sta content_type_buffer,y
bne :-
sta sent_header
ldax httpd_io_buffer
jmp got_http_request
http_callback:
lda tcp_inbound_data_length+1
cmp #$ff
bne @not_eof
inc connection_closed
@done:
rts
@not_eof:
lda found_eol
bne @done
;copy this chunk to our input buffer
ldax tcp_buffer_ptr
stax copy_dest
ldax tcp_inbound_data_ptr
stax copy_src
ldax tcp_inbound_data_length
jsr copymem
;increment the pointer into the input buffer
clc
lda tcp_buffer_ptr
adc tcp_inbound_data_length
sta tcp_buffer_ptr
sta temp_ptr
lda tcp_buffer_ptr+1
adc tcp_inbound_data_length+1
sta tcp_buffer_ptr+1
sta temp_ptr+1
;put a null byte at the end (assumes we have set temp_ptr already)
lda #0
tay
sta (temp_ptr),y
;look for CR or LF in input
sta found_eol
ldax httpd_io_buffer
stax get_next_byte+1
@look_for_eol:
jsr get_next_byte
cmp #$0a
beq @found_eol
cmp #$0d
bne @not_eol
@found_eol:
inc found_eol
rts
@not_eol:
cmp #0
bne @look_for_eol
rts
reset_output_buffer:
ldax httpd_io_buffer
sta xmit_a_ptr+1
stx xmit_a_ptr+2
lda #0
sta output_buffer_length
sta output_buffer_length+1
rts
send_buffer:
ldax output_buffer_length
stax tcp_send_data_len
ldax httpd_io_buffer
jsr tcp_send
jmp reset_output_buffer
emit_string:
stax temp_ptr
ldy #0
@next_byte:
lda (temp_ptr),y
beq @done
jsr xmit_a
iny
bne @next_byte
@done:
rts
httpd_keyword:
jsr get_integer
stax httpd_port_number
jsr skip_comma_get_integer
stax default_line_number
inc error_handling_mode
tsx
stx top_of_stack
jmp httpd_start
status_keyword:
jsr extract_string
ldy #$FF
@loop:
iny
lda transfer_buffer,y
sta status_code_buffer,y
bne @loop
rts
type_keyword:
jsr extract_string
ldy #$FF
@loop:
iny
lda transfer_buffer,y
sta content_type_buffer,y
bne @loop
rts
send_header:
inc sent_header
ldax #http_version
jsr emit_string
ldax #status_code_buffer
jsr emit_string
ldax #crlf
jsr emit_string
ldax #content_type
jsr emit_string
ldax #content_type_buffer
jsr emit_string
ldax #end_of_header
jmp emit_string
flush_keyword:
lda output_buffer_length
bne :+
ldx output_buffer_length+1
bne :+
rts
:
jmp send_buffer
xsend_keyword:
jsr extract_string
ldx #<transfer_buffer
ldy #>transfer_buffer
lda param_length
jsr SETNAM
lda #$02 ; file number 2
ldx $BA ; last used device number
bne @skip
ldx #$08 ; default to device 8
@skip:
ldy #$02 ; secondary address 2
jsr SETLFS
jsr OPEN
bcs @error ; if carry set, the file could not be opened
ldx #$02 ; filenumber 2
jsr CHKIN
@loop:
jsr CHRIN
sta tmp_a
jsr READST
bne @eof ; either EOF or read error
lda sent_header
bne :+
jsr send_header
:
lda tmp_a
jsr xmit_a
jmp @loop
@eof:
and #$40 ; end of file?
beq @error
lda tmp_a
jsr xmit_a
@close_handles:
lda #$02 ; filenumber 2
jsr CLOSE
ldx #$00 ; filenumber 0 = keyboard
jsr CHKIN ;keyboard now input device again
rts
@error:
lda #$00 ; no filename
tax
tay
jsr SETNAM
lda #$0f ;file number 15
ldx $ba ;drive number
ldy #$0f ; secondary address 15 (error channel)
jsr SETLFS
jsr OPEN
LDX #$0F ; filenumber 15
JSR CHKIN ;(file 15 now used as input)
LDY #$00
@error_loop:
JSR READST ;(read status byte)
BNE @error_eof ; either EOF or read error
JSR CHRIN ;(get a byte from file)
sta error_buffer,y
iny
JMP @error_loop ; next byte
@error_eof:
lda #0
sta error_buffer,y
LDX #$00 ; filenumber 0 = keyboard
JSR CHKIN ;(keyboard now input device again)
jsr @close_handles
jmp create_error
create_error:
lda sent_header
bne @header_sent
ldy #$FF
:
iny
lda status_error,y
sta status_code_buffer,y
bne :-
jsr send_header
@header_sent:
ldax #error_start
jsr emit_string
ldax #system_error
jsr print
lda $3a ;current line number
ldx $39
sta $62
stx $63
ldx #$90 ;exponent to 16
sec
jsr $bc49 ;pad out flp acc
jsr $bddf ;convert to string
jsr $b487 ;move string descriptor into flp acc
jsr $b6a6 ;get text pointer into $22/$23
tay
lda #0
sta ($22),y
lda $22
ldx $23
jsr emit_string
jsr emit_br
ldax #line_number
jsr print
lda $22
ldx $23
jsr print
jsr print_cr
ldax #error_buffer
jsr emit_string
ldax #error_buffer
jsr print
jmp yield_keyword
emit_br:
ldax #br
jmp emit_string
error_handler:
ldy error_handling_mode
bne @send_error_to_browser
jmp (olderror)
@send_error_to_browser:
txa
asl a
tax
lda $a326,x ; fetch address from table of error messages
sta $22
lda $a327,x ; fetch address from table of error messages
sta $23
ldy #0
@one_char:
lda ($22),y
pha
and #$7f
sta error_buffer,y
iny
pla
bpl @one_char
lda #0
sta error_buffer,y
jmp create_error
.rodata
vectors:
.word crunch
.word list
.word execute
hexdigits:
.byte "0123456789ABCDEF"
CR=$0D
LF=$0A
error_start:
.byte "<h1>SYSTEM ERROR</h1><br>"
line_number:
.byte " LINE NUMBER: ",0
br:
.byte "<br>",CR,LF,0
listening:
.byte"LISTENING ON ",0
pinging:
.byte"PINGING ",0
interface_type:
.byte "INTERFACE : ",0
mac_address_msg:
.byte "MAC ADDRESS : ", 0
ip_address_msg:
.byte "IP ADDRESS : ", 0
netmask_msg:
.byte "NETMASK : ", 0
gateway_msg:
.byte "GATEWAY : ", 0
address_resolution:
.byte "ADDRESS RESOLUTION",0
connect:
.byte "CONNECT",0
error:
.byte " ERROR $",0
disconnected:
.byte 13,"DIS"
connected_msg:
.byte "CONNECTED",13,0
path:
.byte "PATH: ",0
http_version:
.byte "HTTP/1.0 ",0
status_ok:
.byte "200 OK",0
status_error:
.byte "500 "
system_error:
.byte "SYSTEM ERROR",0
content_type:
.byte "Content-Type: ",0
text_html:
.byte "text/html",0
end_of_header:
.byte CR,LF
.byte "Connection: Close",CR,LF
.byte "Server: BoB_httpd/0.c64",CR,LF
crlf:
.byte CR,LF,0
connection_from: .byte "CONNECTION FROM ",0
; Keyword list
; Keywords are stored as normal text,
; followed by the token number.
; All tokens are >$80,
; so they easily mark the end of the keyword
keywords:
.byte "IF",$E0 ;our dummy 'IF' entry takes $E0
.byte "IPCFG",$E1
.byte "DHCP",$E2 ;DUMMY!
.byte "PING",$E3
.byte "MYIP",$E4
.byte "NETMASK",$E5
.byte "GATEWAY",$E6
.byte "DNS",$E7 ;DUMMY!
.byte "HOOK",$E8
.byte "YIELD",$E9
.byte "XS",$80,$EA ;BASIC will replace 'END' with $80
.byte "!",$EB
.byte "HTTPD",$EC
.byte "TYPE",$ED
.byte "STATUS",$EE
.byte "FLUSH",$EF
.byte "MAC",$F0
.byte $00 ;end of list
HITOKEN=$F1
;
; Table of token locations-1
;
token_routines:
E0: .word if_keyword-1
E1: .word ipcfg_keyword-1
E2: .word ipcfg_keyword-1 ;dummy
E3: .word ping_keyword-1
E4: .word myip_keyword-1
E5: .word netmask_keyword-1
E6: .word gateway_keyword-1
E7: .word ipcfg_keyword-1 ;dummy
E8: .word hook_keyword-1
E9: .word yield_keyword-1
EA: .word xsend_keyword-1
EB: .word bang_keyword-1
EC: .word httpd_keyword-1
ED: .word type_keyword-1
EE: .word status_keyword-1
EF: .word flush_keyword-1
F0: .word mac_keyword-1
.segment "SELF_MODIFIED_CODE"
jmp_crunch: .byte $4C ;JMP
oldcrunch: .res 2 ;Old CRUNCH vector
oldlist: .res 2
oldexec: .res 2
olderror: .res 2
emit_a:
current_output_ptr=emit_a+1
sta $ffff
inc string_length
inc current_output_ptr
bne :+
inc current_output_ptr+1
:
rts
MAX_HOOKS=10
hook_table:
.res MAX_HOOKS*6
;format is:
; $00/$01 first 2 chars of hook name
; $02 length of name
; $03 hash of name
; $04/$05 line number that hook handler starts at
hooks: .byte 0
error_handling_mode: .byte 0
connection_timeout_seconds: .byte 0
found_eol: .byte 0
connection_closed: .byte 0
httpd_io_buffer: .word __httpd_io_buffer
httpd_port_number: .word 80
get_next_byte:
lda $ffff
inc get_next_byte+1
bne @skip
inc get_next_byte+2
@skip:
rts
xmit_a:
xmit_a_ptr:
sta $ffff
inc xmit_a_ptr+1
bne :+
inc xmit_a_ptr+2
:
inc output_buffer_length
bne :+
inc output_buffer_length+1
lda output_buffer_length+1
cmp #2
bne :+
stx temp_x
jsr send_buffer
ldx temp_x
:
rts
.bss
string_length: .res 1
param_length: .res 1
tmp_length: .res 1
temp_bin: .res 1
temp_bcd: .res 2
ping_counter: .res 1
http_buffer: .res 256
string_buffer: .res 128
transfer_buffer: .res 256
handler_address: .res 2
hash: .res 1
string_ptr: .res 1
default_line_number: .res 2
output_buffer_length: .res 2
tcp_buffer_ptr: .res 2
buffer_size: .res 1
temp_x: .res 1
sent_header: .res 1
tmp_a: .res 1
error_buffer: .res 80
top_of_stack: .res 1
.segment "TCP_VARS"
__httpd_io_buffer: .res 1024 ;temp buffer for storing inbound requests.
content_type_buffer: .res 128
status_code_buffer: .res 128
;-- LICENSE FOR bails.s --
; The contents of this file are subject to the Mozilla Public License
; Version 1.1 (the "License"); you may not use this file except in
; compliance with the License. You may obtain a copy of the License at
; http://www.mozilla.org/MPL/
;
; Software distributed under the License is distributed on an "AS IS"
; basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
; License for the specific language governing rights and limitations
; under the License.
;
; The Original Code is netboot65.
;
; The Initial Developer of the Original Code is Jonno Downes,
; jonno@jamtronix.com.
; Portions created by the Initial Developer are Copyright (C) 2009,2010
; Jonno Downes. All Rights Reserved.
; -- LICENSE END --
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