transport.rb in rubydns-0.9.2

- old
+ new

@@ -17,13 +17,18 @@
 # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 # THE SOFTWARE.
 
 require 'stringio'
+require 'ipaddr'
 
 require_relative 'message'
 
 module RubyDNS
+	def self.address_family(host)
+		return IPAddr.new(host).family
+	end
+	
 	# A helper class for processing incoming network data.
 	class BinaryStringIO < StringIO
 		def initialize
 			super
 		