Documented run_server() and add_rule().

extensions/dns/dns.rb

@@ -11,6 +11,10 @@ module DNS
 
     include Singleton
 
+    # Starts DNS server run-loop.
+    #
+    # @param address [String] interface address server should run on
+    # @param port [Integer] desired server port number
     def run_server(address, port)
       EventMachine::next_tick do
         RubyDNS::run_server(:listen => [[:udp, address, port]]) do
@@ -23,6 +27,11 @@ module DNS
       end
     end
 
+    # Adds a new DNS rule or "resource record". Does nothing if rule is already present.
+    #
+    # @param name [String] name of query
+    # @param type [String] query type (e.g. A, CNAME, MX, NS, etc.)
+    # @param value [String] response to send back to resolver
     def add_rule(name, type, value)
       catch(:match) do
         BeEF::Core::Models::DNS.each do |rule|