bsnl_radar.rb

#! env ruby

loop do

  begin
    ping = `ping -n -c 1 -W 3 google.in 2>&1`
  rescue
    puts "Failed ping"
    sleep 1
    next
  end

  time_regex = ping.match(/time=(.*) ms/)
  if time_regex.nil?
    host_regex = ping.match(/Name or service not known/)
    if host_regex.nil?
      puts "Timed out"
    else
      puts "No Internet"
      sleep 1
    end
    next
  end

  time = time_regex.captures.first.to_f

  tone = 500000 / time

  puts "#{time}ms: #{tone}Hz"

  `altonegen -t 1 -f #{tone} 2>&1 > /dev/null`

end