each_name

# File lib/resolv.rb, line 436
    def each_name(address)
      case address
      when Name
        ptr = address
      when IPv4::Regex
        ptr = IPv4.create(address).to_name
      when IPv6::Regex
        ptr = IPv6.create(address).to_name
      else
        raise ResolvError.new("cannot interpret as address: #{address}")
      end
      each_resource(ptr, Resource::IN::PTR) {|resource| yield resource.name}
    end