# File lib/webrick/cgi.rb, line 126
      def initialize(config, env, stdin, stdout)
        @config = config
        @env = env
        @header_part = StringIO.new
        @body_part = stdin
        @out_port = stdout
        @out_port.binmode
  
        @server_addr = @env["SERVER_ADDR"] || "0.0.0.0"
        @server_name = @env["SERVER_NAME"]
        @server_port = @env["SERVER_PORT"]
        @remote_addr = @env["REMOTE_ADDR"]
        @remote_host = @env["REMOTE_HOST"] || @remote_addr
        @remote_port = @env["REMOTE_PORT"] || 0

        begin
          @header_part << request_line << CRLF
          setup_header
          @header_part << CRLF
          @header_part.rewind
        rescue Exception => ex
          raise CGIError, "invalid CGI environment"
        end
      end