Ruby's mDNS (dnssd)

I'd like to have Zero conf services. So, I was looking for those Discovery libraries and found this.. Let's try

Here is the service side.

 require 'dnssd'  
 domains = []  
 enumerator = DNSSD.enumerate_domains do |reply|  
  domains << reply.domain  
  next if reply.flags.more_coming?  
  puts "Found domains:\n#{domains.join "\n"}"  
  break  
 end  
 DNSSD.register 'agent', '_agent._tcp', nil, 6464  
 puts "registered agent at 6464"  
 loop do  
   sleep 1  
   puts "agent running.."  
 end  

And here is the client side..

 require 'dnssd'  
 browser = DNSSD::Service.new  
 puts "Browsing for Agent service"  
 browser.browse '_agent._tcp' do |reply|  
   puts "Time: #{Time.new.to_f} reply: #{reply.fullname}"  
   puts reply    
   break  
 end   

3. Asynchronous Browse and Resolve

 require 'dnssd'  
 require 'socket'  
 browser = DNSSD::Service.new  
 puts "Browsing for Agent service"  
 # Make it Asynchronous ..  
 Thread.new do  
  browser.browse '_agent._tcp' do |reply|  
    puts "Time: #{Time.new.to_f} reply: #{reply.fullname}"  
    puts reply.inspect    
    puts reply.service_name  
    target = nil  
    resolver = DNSSD::Service.new  
    resolver.resolve reply do |r|  
     target = r.target  
     puts "#{r.name} on #{r.target}:#{r.port}"  
     # puts "\t#{r.text_record.inspect}" unless r.text_record.empty?  
     break unless r.flags.more_coming?  
    end  
    resolver.stop  
    puts "target: #{target}"  
    addrinfo = Socket.getaddrinfo target, nil, Socket::AF_INET  
    puts "Addresses for #{target}"  
    addrinfo.each do |addr|  
     puts addr.inspect  
    end  
    break  
  end   
 end  
 sleep 1  

Enjoy!