makepasv

# File lib/net/ftp.rb, line 529
    def makepasv # :nodoc:
      if @bare_sock.remote_address.ipv4?
        host, port = parse227(sendcmd("PASV"))
      else
        host, port = parse229(sendcmd("EPSV"))
        #     host, port = parse228(sendcmd("LPSV"))
      end
      return host, port
    end