# File lib/net/telnet.rb, line 706
    def login(options, password = nil) # :yield: recvdata
      login_prompt = /[Ll]ogin[: ]*\z/n
      password_prompt = /Password[: ]*\z/n
      if options.kind_of?(Hash)
        username = options["Name"]
        password = options["Password"]
        login_prompt = options["LoginPrompt"] if options["LoginPrompt"]
        password_prompt = options["PasswordPrompt"] if options["PasswordPrompt"]
      else
        username = options
      end

      if block_given?
        line = waitfor(login_prompt){|c| yield c }
        if password
          line += cmd({"String" => username,
                       "Match" => password_prompt}){|c| yield c }
          line += cmd(password){|c| yield c }
        else
          line += cmd(username){|c| yield c }
        end
      else
        line = waitfor(login_prompt)
        if password
          line += cmd({"String" => username,
                       "Match" => password_prompt})
          line += cmd(password)
        else
          line += cmd(username)
        end
      end
      line
    end