Implement passthrough

CHANGELOG.md

@@ -1,3 +1,7 @@
+# v0.2.4
+
+* Enable passthrough in DNS service. Helpful if you insist to hook a standard tld like .io.
+
 # v0.2.3
 
 * Remove unneeded iteraton in installers/mac.rb. (thanks to JonathanTron for reporting)

lib/vagrant-dns/service.rb

@@ -19,16 +19,36 @@ def stop!
 
     def run!(run_options)
       Daemons.run_proc("vagrant-dns", run_options) do
+        require 'resolv'
         require 'rubydns'
 
+        # come on, this is Ruby
+        # Ruby 1.9.3 does not implement :make_requester anymore
+        # Luckily :make_udp_requester is just the same
+        begin
+          Resolv::DNS.instance_method(:make_requester)
+        rescue NameError
+          Resolv::DNS.class_eval { 
+            alias :make_requester :make_udp_requester
+          }
+        end
+
         registry = YAML.load(File.read(config_file))
+        std_resolver = Resolv::DNS.new
 
         RubyDNS::run_server(:listen => VagrantDNS::Config.listen) do
           registry.each do |pattern, ip|
             match(Regexp.new(pattern), :A) do |match_data, transaction|
               transaction.respond!(ip)
             end
           end
+
+          otherwise do |transaction|
+            transaction.passthrough!(std_resolver) do |reply, reply_name|
+              puts reply
+              puts reply_name
+            end
+          end
         end
       end
     end