# File lib/Dnsruby/message.rb, line 96
      def rrset(name, type=Types.A, klass=Classes::IN)
        rrs = select{|rr| 
          type_ok = (rr.type==type)
          if (rr.type == Types::RRSIG)
            type_ok = (rr.type_covered == type)
          end
          type_ok && (rr.klass == klass) && (rr.name.to_s.downcase == name.to_s.downcase)
        }
        rrset = RRSet.new()
        rrs.each do |rr|
          rrset.add(rr)
        end
        return rrset
      end