class Company
  def initialize()
    @oui = File.readlines("oui.txt").select{|l| l=~/\(hex\)/}
    @oui = @oui.map{|l| l.gsub(/^(..)-(..)-(..)\s+\(hex\)\s+(.*)/,"\\1:\\2:\\3\t\\4").chomp.split("\t")}.to_h
    # p @oui
  end

  def get_company(mac)
    return @oui[mac[0...8]]
  end
end


if __FILE__==$0
    c = Company.new
    
end