From 1377a91ae2e66471698f5a83b3a43a5f5edc5d55 Mon Sep 17 00:00:00 2001
From: Florian Gilcher <florian.gilcher@asquera.de>
Date: Mon, 14 May 2012 21:04:15 +0200
Subject: [PATCH] Implement passthrough

---
 CHANGELOG.md               |  4 ++++
 lib/vagrant-dns/service.rb | 20 ++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index dbc9920..5a6095c 100644
--- a/CHANGELOG.md
+++ b/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)
diff --git a/lib/vagrant-dns/service.rb b/lib/vagrant-dns/service.rb
index 3552caf..6bcbb34 100644
--- a/lib/vagrant-dns/service.rb
+++ b/lib/vagrant-dns/service.rb
@@ -19,9 +19,22 @@ 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|
@@ -29,6 +42,13 @@ def run!(run_options)
               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