diff options
Diffstat (limited to 'lib/telnet.rb')
| -rw-r--r-- | lib/telnet.rb | 103 |
1 files changed, 72 insertions, 31 deletions
diff --git a/lib/telnet.rb b/lib/telnet.rb index e5a8aa6b7b..e3c590c35d 100644 --- a/lib/telnet.rb +++ b/lib/telnet.rb @@ -1,8 +1,17 @@ # # telnet.rb -# ver0.141 1998/09/22 +# ver0.16 1998/10/09 # Wakou Aoyama <wakou@fsinet.or.jp> # +# ver0.16 1998/10/09 +# preprocess method change for the better +# add binmode method. +# change default Binmode +# TRUE --> FALSE +# +# ver0.15 1998/10/04 +# add telnetmode method. +# # ver0.141 1998/09/22 # change default prompt # /[$%#>] $/ --> /[$%#>] \Z/ @@ -33,7 +42,7 @@ # first release. # # == make new Telnet object -# host = Telnet.new({"Binmode" => TRUE, default: TRUE +# host = Telnet.new({"Binmode" => FALSE, default: FALSE # "Host" => "localhost", default: "localhost" # "Output_log" => "output_log", default: not output # "Dump_log" => "dump_log", default: not output @@ -76,6 +85,16 @@ # == send string # host.print("string") # +# == turn telnet command interpretation +# host.telnetmode # turn on/off +# host.telnetmode(TRUE) # on +# host.telnetmode(FALSE) # off +# +# == toggle newline translation +# host.binmode # turn TRUE/FALSE +# host.binmode(TRUE) # no translate newline +# host.binmode(FALSE) # translate newline +# # == login # host.login("username", "password") # host.login({"Name" => "username", @@ -204,6 +223,7 @@ class Telnet < SimpleDelegator OPT_AUTHENTICATION = 37.chr # Authentication Option OPT_ENCRYPT = 38.chr # Encryption Option OPT_NEW_ENVIRON = 39.chr # New Environment Option + OPT_EXOPL = 255.chr # Extended-Options-List NULL = "\000" CR = "\015" @@ -212,7 +232,7 @@ class Telnet < SimpleDelegator def initialize(options) @options = options - @options["Binmode"] = TRUE if not @options.include?("Binmode") + @options["Binmode"] = FALSE if not @options.include?("Binmode") @options["Host"] = "localhost" if not @options.include?("Host") @options["Port"] = 23 if not @options.include?("Port") @options["Prompt"] = /[$%#>] \Z/ if not @options.include?("Prompt") @@ -225,7 +245,7 @@ class Telnet < SimpleDelegator if @options.include?("Output_log") @log = File.open(@options["Output_log"], 'a+') @log.sync = TRUE - @log.binmode if @options["Binmode"] + @log.binmode end if @options.include?("Dump_log") @@ -250,7 +270,7 @@ class Telnet < SimpleDelegator } raise TimeOut, "timed-out; opening of the host" if is_timeout @sock.sync = TRUE - @sock.binmode if @options["Binmode"] + @sock.binmode message = "Connected to " + @options["Host"] + ".\n" STDOUT.write(message) @@ -260,46 +280,62 @@ class Telnet < SimpleDelegator super(@sock) end + def telnetmode(mode = 'turn') + if 'turn' == mode + @options["Telnetmode"] = @options["Telnetmode"] ? FALSE : TRUE + else + @options["Telnetmode"] = mode ? TRUE : FALSE + end + end + + def binmode(mode = 'turn') + if 'turn' == mode + @options["Binmode"] = @options["Binmode"] ? FALSE : TRUE + else + @options["Binmode"] = mode ? TRUE : FALSE + end + end + def preprocess(str) - str.gsub!(/#{CR}#{NULL}/no, CR) # combine CR+NULL into CR - str.gsub!(/#{EOL}/no, "\n") # combine EOL into "\n" + + if not @options["Binmode"] + str.gsub!(/#{CR}#{NULL}/no, CR) # combine CR+NULL into CR + str.gsub!(/#{EOL}/no, "\n") # combine EOL into "\n" + end # respond to "IAC DO x" - str.gsub!(/([^#{IAC}])?#{IAC}#{DO}(.|\n)/no){ - if OPT_BINARY == $2 + str.gsub!(/(?:(?!#{IAC}))?#{IAC}#{DO}([#{OPT_BINARY}-#{OPT_NEW_ENVIRON}#{OPT_EXOPL}])/no){ + if OPT_BINARY == $1 @telnet_option["BINARY"] = TRUE @sock.write(IAC + WILL + OPT_BINARY) - $1 else - @sock.write(IAC + WONT + $2) - $1 + @sock.write(IAC + WONT + $1) end + '' } # respond to "IAC DON'T x" with "IAC WON'T x" - str.gsub!(/([^#{IAC}])?#{IAC}#{DONT}(.|\n)/no){ - @sock.write(IAC + WONT + $2) - $1 + str.gsub!(/(?:(?!#{IAC}))?#{IAC}#{DONT}([#{OPT_BINARY}-#{OPT_NEW_ENVIRON}#{OPT_EXOPL}])/no){ + @sock.write(IAC + WONT + $1) + '' } # respond to "IAC WILL x" - str.gsub!(/([^#{IAC}])?#{IAC}#{WILL}(.|\n)/no){ - if OPT_SGA == $2 + str.gsub!(/(?:(?!#{IAC}))?#{IAC}#{WILL}([#{OPT_BINARY}-#{OPT_NEW_ENVIRON}#{OPT_EXOPL}])/no){ + if OPT_SGA == $1 @telnet_option["SGA"] = TRUE @sock.write(IAC + DO + OPT_SGA) - $1 - else - $1 end + '' } # ignore "IAC WON'T x" - str.gsub!(/([^#{IAC}])?#{IAC}#{WONT}(.|\n)/no, '\1') + str.gsub!(/(?:(?!#{IAC}))?#{IAC}#{WONT}[#{OPT_BINARY}-#{OPT_NEW_ENVIRON}#{OPT_EXOPL}]/no, '') # respond to "IAC AYT" (are you there) - str.gsub!(/([^#{IAC}])?#{IAC}#{AYT}/no){ + str.gsub!(/(?:(?!#{IAC}))?#{IAC}#{AYT}/no){ @sock.write("nobody here but us pigeons" + EOL) - $1 + '' } str.gsub(/#{IAC}#{IAC}/no, IAC) # handle escaped IAC characters @@ -340,15 +376,20 @@ class Telnet < SimpleDelegator end def print(string) - if @telnet_option["BINARY"] and @telnet_option["SGA"] - # IAC WILL SGA IAC DO BIN send EOL --> CR - @sock.write(string.gsub(/\n/, CR) + CR) - elsif @telnet_option["SGA"] - # IAC WILL SGA send EOL --> CR+NULL - @sock.write(string.gsub(/\n/, CR + NULL) + CR + NULL) + string.gsub!(/#{IAC}/no, IAC + IAC) if @options["Telnetmode"] + if @options["Binmode"] + @sock.write(string) else - # NONE send EOL --> LF - @sock.write(string.gsub(/\n/, LF) + LF) + if @telnet_option["BINARY"] and @telnet_option["SGA"] + # IAC WILL SGA IAC DO BIN send EOL --> CR + @sock.write(string.gsub(/\n/, CR) + CR) + elsif @telnet_option["SGA"] + # IAC WILL SGA send EOL --> CR+NULL + @sock.write(string.gsub(/\n/, CR + NULL) + CR + NULL) + else + # NONE send EOL --> LF + @sock.write(string.gsub(/\n/, LF) + LF) + end end end |