class Gem::Resolv::DNS::Config

def resolv(name)
  candidates = generate_candidates(name)
  timeouts = @timeouts || generate_timeouts
  timeout_error = false
  begin
    candidates.each {|candidate|
      begin
        timeouts.each {|tout|
          @nameserver_port.each {|nameserver, port|
            begin
              yield candidate, tout, nameserver, port
            rescue ResolvTimeout
            end
          }
        }
        timeout_error = true
        raise ResolvError.new("DNS resolv timeout: #{name}")
      rescue NXDomain
      end
    }
  rescue ResolvError
    raise if @raise_timeout_errors && timeout_error
  end
end