Add DynDNS.com compatible responder

lib/dyndnsd/responder/dyndns_style.rb

@@ -0,0 +1,19 @@
+
+module Dyndnsd
+  module Responder
+    class DynDNSStyle
+      def response_for(state, ip = nil)
+        # general http errors
+        return [405, {"Content-Type" => "text/plain"}, ["Method Not Allowed"]] if state == :method_forbidden
+        return [404, {"Content-Type" => "text/plain"}, ["Not Found"]] if state == :not_found
+        # specific errors
+        return [200, {"Content-Type" => "text/plain"}, ["notfqdn"]] if state == :hostname_missing
+        return [200, {"Content-Type" => "text/plain"}, ["nohost"]] if state == :host_forbidden
+        return [200, {"Content-Type" => "text/plain"}, ["notfqdn"]] if state == :hostname_malformed
+        # OKs
+        return [200, {"Content-Type" => "text/plain"}, ["good #{ip}"]] if state == :good
+        return [200, {"Content-Type" => "text/plain"}, ["nochg #{ip}"]] if state == :nochg
+      end
+    end
+  end
+end