mirror of
https://github.com/bobbimanners/emailler.git
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git-svn-id: http://svn.code.sf.net/p/netboot65/code@177 93682198-c243-4bdb-bd91-e943c89aac3b
This commit is contained in:
jonnosan
parent
2760650688
commit
0a2982105b
@ -124,5 +124,6 @@ NB65_ERROR_CONNECTION_RESET_BY_PEER EQU $89
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NB65_ERROR_CONNECTION_CLOSED EQU $8A
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NB65_ERROR_FILE_ACCESS_FAILURE EQU $90
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NB65_MALFORMED_URL EQU $A0
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NB65_DNS_LOOKUP_FAILED EQU $A1
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NB65_ERROR_OPTION_NOT_SUPPORTED EQU $FE
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NB65_ERROR_FUNCTION_NOT_SUPPORTED EQU $FF
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@ -52,7 +52,8 @@ ip65_error: .res 1 ;last error code
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;outputs: AX set to a pseudo-random 16 bit number
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ip65_random_word:
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jsr timer_read ;sets AX
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adc $d018 ;on a c64, this is the raster register
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; adc $d018 ;on a c64, this is the raster register
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adc $d41b; on a c64, this is a 'random' number from the SID
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pha
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adc ip65_ctr_arp
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ora #$08 ;make sure we grab at least 8 bytes from eth_inp
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@ -1,6 +1,4 @@
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;text file parsing routines
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; first call parser_init
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; then call parser_skip_next
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.export parse_integer
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.importzp copy_dest
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@ -23,6 +23,7 @@ MAX_TCP_PACKETS_SENT=8 ;timeout after sending 8 messages will be about 7 sec
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.export tcp_connect_ip
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.export tcp_send_data_len
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.export tcp_send
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.export tcp_send_string
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.export tcp_close
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.export tcp_listen
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@ -368,6 +369,33 @@ tcp_close:
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rts
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tcp_send_string:
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;send a string over the current tcp connection
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;inputs:
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; tcp connection should already be opened
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; AX: pointer to buffer - data up to (but not including)
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; the first nul byte will be sent. max of 255 bytes will be sent.
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;outputs:
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; carry flag is set if an error occured, clear otherwise
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stax tcp_send_data_ptr
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stax copy_src
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lda #0
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tay
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sta tcp_send_data_len
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sta tcp_send_data_len+1
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lda (copy_src),y
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bne @find_end_of_string
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rts ; if the string is empty, don't send anything!
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@find_end_of_string:
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lda (copy_src),y
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beq @done
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inc tcp_send_data_len
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iny
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bne @find_end_of_string
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@done:
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ldax tcp_send_data_ptr
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;now we can fall through into tcp_send
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tcp_send:
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;send tcp data
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;inputs:
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@ -378,6 +406,7 @@ tcp_send:
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; carry flag is set if an error occured, clear otherwise
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stax tcp_send_data_ptr
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lda tcp_state
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cmp #tcp_cxn_state_established
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beq @connection_established
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@ -646,8 +675,19 @@ tcp_process:
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bit tcp_inp+tcp_flags_field
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beq @not_reset
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jsr check_current_connection
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bcs @not_current_connection_on_rst
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;connection has been reset so mark it as closed
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bcs @not_current_connection_on_rst
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;for some reason, search.twitter.com is sending RSTs with ID=$1234 (i.e. echoing the inbound ID)
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;but then keeps the connection open and ends up sending the file.
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;so lets ignore a reset with ID=$1234
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lda ip_inp+ip_id
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cmp #$34
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bne @not_invalid_reset
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lda ip_inp+ip_id+1
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cmp #$12
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bne @not_invalid_reset
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jmp @send_ack
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@not_invalid_reset:
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;connection has been reset so mark it as closed
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lda #tcp_cxn_state_closed
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sta tcp_state
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lda #NB65_ERROR_CONNECTION_RESET_BY_PEER
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@ -11,18 +11,34 @@
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.import output_buffer
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.importzp copy_src
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.importzp copy_dest
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.import copymem
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.import ip65_error
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.import ip65_process
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.import parser_init
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.import parser_skip_next
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.import dns_set_hostname
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.import dns_resolve
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.import parse_integer
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.import dns_ip
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.import tcp_connect
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.import tcp_send_string
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.import tcp_send_data_len
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.import tcp_callback
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.import tcp_close
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.import tcp_connect_ip
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.import tcp_inbound_data_length
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.import tcp_inbound_data_ptr
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.export url_ip
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.export url_port
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.export url_selector
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.export url_resource_type
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.export url_parse
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.export url_download
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.export url_download_buffer
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.export url_download_buffer_length
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target_string=copy_src
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search_string=copy_dest
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@ -41,6 +57,16 @@ selector_buffer=output_buffer
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src_ptr: .res 1
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dest_ptr: .res 1
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url_download_buffer: .res 2 ; points to a buffer that url will be downloaded into
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url_download_buffer_length: .res 2 ;length of buffer that url will be downloaded into
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temp_buffer: .res 2
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temp_buffer_length: .res 2
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download_flag: .res 1
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.code
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@ -102,7 +128,11 @@ lda #url_type_gopher
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jsr dns_set_hostname
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bcs @exit_with_sec
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jsr dns_resolve
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bcs @exit_with_sec
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bcc :+
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lda #NB65_DNS_LOOKUP_FAILED
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sta ip65_error
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jmp @exit_with_sec
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:
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;copy IP address
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ldx #3
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:
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@ -138,19 +168,23 @@ lda #url_type_gopher
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;first byte after / in a gopher url is the resource type
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ldy src_ptr
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lda (copy_src),y
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beq @start_of_selector
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sta url_resource_type
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inc src_ptr
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jmp @start_of_selector
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@not_gopher:
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cmp #url_type_http
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bne @done ; if it's not gopher or http, we don't know how to build a selector
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ldy #3
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beq @build_http_request
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jmp @done ; if it's not gopher or http, we don't know how to build a selector
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@build_http_request:
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ldy #get_length-1
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sty dest_ptr
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:
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lda get,y
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sta (copy_dest),y
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dey
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bpl :-
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@start_of_selector:
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lda #'/'
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inc dest_ptr
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@ -166,6 +200,55 @@ lda #url_type_gopher
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inc dest_ptr
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bne @copy_one_byte
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@end_of_selector:
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ldx #1 ;number of CRLF at end of gopher request
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lda url_type
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cmp #url_type_http
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bne @final_crlf
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;now the HTTP version number & Host: field
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ldx #0
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:
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lda http_version_and_host,x
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beq :+
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ldy dest_ptr
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inc dest_ptr
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sta (copy_dest),y
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inx
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bne :-
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:
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;now copy the host field
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jsr skip_to_hostname
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;AX now pointing at hostname
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stax copy_src
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ldax #selector_buffer
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stax copy_dest
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lda #0
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sta src_ptr
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@copy_one_byte_of_hostname:
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ldy src_ptr
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lda (copy_src),y
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beq @end_of_hostname
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cmp #':'
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beq @end_of_hostname
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cmp #'/'
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beq @end_of_hostname
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inc src_ptr
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ldy dest_ptr
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sta (copy_dest),y
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inc dest_ptr
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bne @copy_one_byte_of_hostname
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@end_of_hostname:
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ldx #2 ;number of CRLF at end of HTTP request
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@final_crlf:
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ldy dest_ptr
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lda #$0d
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sta (copy_dest),y
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@ -173,11 +256,16 @@ lda #url_type_gopher
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lda #$0a
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sta (copy_dest),y
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iny
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dex
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bne @final_crlf
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@done:
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lda #$00
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sta (copy_dest),y
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ldax #selector_buffer
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stax url_selector
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clc
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rts
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skip_to_hostname:
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@ -186,7 +274,135 @@ skip_to_hostname:
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ldax #colon_slash_slash
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jmp parser_skip_next
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.code
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;download a resource specified by an URL
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;inputs:
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;AX = address of URL string
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; url_download_buffer - points to a buffer that url will be downloaded into
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; url_download_buffer_length - length of buffer
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;outputs:
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; sec if an error occured, else buffer pointed at by url_download_buffer is filled with contents
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; of specified resource (with an extra 2 null bytes at the end),
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; AX = length of resource downloaded.
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url_download:
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jsr url_parse
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bcc @url_parsed_ok
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rts
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@url_parsed_ok:
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ldax url_download_buffer
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stax temp_buffer
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ldax url_download_buffer_length
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stax temp_buffer_length
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ldx #3 ; save IP address just retrieved
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: lda url_ip,x
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sta tcp_connect_ip,x
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dex
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bpl :-
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ldax #url_download_callback
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stax tcp_callback
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ldax url_port
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jsr tcp_connect
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bcs @error
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;connected, now send the selector
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ldx #0
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stx download_flag
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ldax url_selector
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jsr tcp_send_string
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;now loop until we're done
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@download_loop:
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jsr ip65_process
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lda download_flag
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beq @download_loop
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jsr tcp_close
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clc
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@error:
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rts
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lda #NB65_ERROR_FILE_ACCESS_FAILURE
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sta ip65_error
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sec
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rts
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url_download_callback:
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lda tcp_inbound_data_length+1
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cmp #$ff
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bne @not_end_of_file
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@end_of_file:
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lda #1
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sta download_flag
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;put a zero byte at the end of the file (in case it was a text file)
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ldax temp_buffer
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stax copy_dest
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lda #0
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tay
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sta (copy_dest),y
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rts
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@not_end_of_file:
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;copy this chunk to our input buffer
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ldax temp_buffer
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stax copy_dest
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ldax tcp_inbound_data_ptr
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stax copy_src
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sec
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lda temp_buffer_length
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sbc tcp_inbound_data_length
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pha
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lda temp_buffer_length+1
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sbc tcp_inbound_data_length+1
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bcc @would_overflow_buffer
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sta temp_buffer_length+1
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pla
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sta temp_buffer_length
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ldax tcp_inbound_data_length
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jsr copymem
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;increment the pointer into the input buffer
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clc
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lda temp_buffer
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adc tcp_inbound_data_length
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sta temp_buffer
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lda temp_buffer+1
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adc tcp_inbound_data_length+1
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sta temp_buffer+1
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; lda #'*'
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; jsr print_a
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rts
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@would_overflow_buffer:
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pla ;clean up the stack
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ldax temp_buffer_length
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jsr copymem
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lda temp_buffer
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adc temp_buffer_length
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sta temp_buffer
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lda temp_buffer+1
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adc temp_buffer_length+1
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sta temp_buffer+1
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lda #0
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sta temp_buffer_length
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sta temp_buffer_length+1
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rts
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.rodata
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get: .byte "GET "
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get_length=4
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http_version_and_host: .byte " HTTP/1.1",$0d,$0a, "Host: ",0
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; http_trailer: .byte " HTTP/1.1",$0a,$0a
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; http_trailer_end:
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; http_trailer_length=http_trailer_end-http_trailer
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colon_slash_slash: .byte ":/"
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slash: .byte "/",0
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colon: .byte ":",0
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colon: .byte ":",0
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@ -31,6 +31,7 @@ all: \
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testdottedquad.prg\
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test_tcp.prg \
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test_parser.prg \
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test_get_url.prg \
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%.o: %.c
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$(CC) -c $(CFLAGS) $<
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@ -44,6 +45,11 @@ all: \
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test_tcp.prg: test_tcp.o $(IP65TCPLIB) $(C64PROGLIB) $(INCFILES) ../cfg/c64prg.cfg
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$(LD) -m test_tcp.map -vm -C ../cfg/c64prg.cfg -o test_tcp.prg $(AFLAGS) $< $(IP65TCPLIB) $(C64PROGLIB)
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test_parser.prg: test_parser.o $(IP65TCPLIB) $(C64PROGLIB) $(INCFILES) ../cfg/c64prg.cfg
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$(LD) -m test_parser.map -vm -C ../cfg/c64prg.cfg -o test_parser.prg $(AFLAGS) $< $(IP65TCPLIB) $(C64PROGLIB)
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test_get_url.prg: test_get_url.o $(IP65TCPLIB) $(C64PROGLIB) $(INCFILES) ../cfg/c64prg.cfg
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$(LD) -m test_get_url.map -vm -C ../cfg/c64prg.cfg -o test_get_url.prg $(AFLAGS) $< $(IP65TCPLIB) $(C64PROGLIB)
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%.pg2: %.o $(IP65LIB) $(APPLE2PROGLIB) $(INCFILES) ../cfg/a2bin.cfg
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$(LD) -C ../cfg/a2bin.cfg -o $*.pg2 $(AFLAGS) $< $(IP65LIB) $(APPLE2PROGLIB)
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@ -209,7 +209,7 @@ selector: .asciiz "SELECTOR: "
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press_a_key: .byte "PRESS ANY KEY TO CONTINUE",13,0
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atom_file:
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.incbin "atom_test.xml"
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;.incbin "atom_test.xml"
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.byte 0
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Reference in New Issue
Block a user