Convert IPv4 to Binary numbers

ipv4_binary.rb

octal, ipv4, input = [128, 64, 32, 16, 8, 4, 2, 1], [[],[],[],[]], nil

while input.nil? || input.split('.').size != 4 do
  puts "Ingrese IPv4 a convertir"
  input = gets.chomp
end

input = input.split('.').map(&:to_i)

ipv4.each_with_index do |binary_set, index|
  total = input[index]
  octal.each do |v|
    fills = total > 0 && (total - v) >= 0
    binary_set << (fills ? 1 : 0)
    total -= v if fills    
  end
end

puts "El binario de tu IP es: \n #{ipv4.map{|x| x.join}.join(' ')}"