Getting error Uninitialized contstant IN

[mayuroks]

I just want an async dns resolver for one time task. I installed 0.5 version n copy pasted the resolver code to test.. But it gave me the error Uninitialized constant IN. Can you gimme a simple example pasted on a gist or tell what possiblly could i b doing wrong?

[ioquatix]

Can you show me the full source code of what you are running?

[mayuroks]

This is on ruby 1.9.3

#! /usr/bin/env ruby
require 'rubydns/system'
require "rubygems" 
require "rubydns"


#resolver = RubyDNS::Resolver.new([[:udp, "8.8.8.8", 53], [:tcp, "8.8.8.8", 53]])
resolver = RubyDNS::Resolver.new(RubyDNS::System::nameservers)

EventMachine::run do
  resolver.query('google.com', IN::A) do |response|
        case response
        when RubyDNS::Message
            puts "Got response: #{response.answers.first}"
        else
            # Response is of class RubyDNS::ResolutionFailure
            puts "Failed: #{response.message}"
        end

        EventMachine::stop
    end
end

This is the error I get

./rubydns_test.rb 
./rubydns_test.rb:11:in `block in <main>': uninitialized constant IN (NameError)
    from /usr/local/rvm/gems/ruby-1.9.3-p545/gems/eventmachine-1.0.3/lib/eventmachine.rb:187:in `call'
    from /usr/local/rvm/gems/ruby-1.9.3-p545/gems/eventmachine-1.0.3/lib/eventmachine.rb:187:in `run_machine'
    from /usr/local/rvm/gems/ruby-1.9.3-p545/gems/eventmachine-1.0.3/lib/eventmachine.rb:187:in `run'
    from ./rubydns_test.rb:10:in `<main>'

[mayuroks]

Found it. This works

#! /usr/bin/env ruby
require 'rubydns/system'
require "rubygems" 
require "rubydns"
require 'resolv'

#resolver = RubyDNS::Resolver.new([[:udp, "8.8.8.8", 53], [:tcp, "8.8.8.8", 53]])
resolver = RubyDNS::Resolver.new(RubyDNS::System::nameservers)

EventMachine::run do
  addr = Resolv::DNS::Resource::IN::A
  resolver.query('in1.php.net', addr) do |response|
        case response
        when RubyDNS::Message
          puts "Got response: #{response.answer}"
        else
            # Response is of class RubyDNS::ResolutionFailure
            puts "Failed: #{response.message}"
        end

        EventMachine::stop
    end
end

[ioquatix]

I guess somewhere in the code you copied from was IN = Resolv::DNS::Resource::IN which you didn't copy. Thus it didn't work :D Good work sorting it out yourself.