cidr_to_broadcast.rb

# Imported by Tim 'bastelfreak' Meusel into voxpupuli/extlib because Yelp/netstdlib got abandoned
#
# @summary Converts an IPv4 CIDR address of the form 192.168.0.1/24 into its broadcast address
# @note IPv6 supports only multicast and unicast, so this function only supports IPv4
Puppet::Functions.create_function(:'extlib::cidr_to_broadcast') do
  # @param ip IPv4 address in CIDR notation
  # @return IPv4 broadcast address
  # @example calling the function
  #   extlib::cidr_to_broadcast('127.0.0.1/8')
  dispatch :cidr_to_broadcast do
    param 'Stdlib::IP::Address::V4::CIDR', :ip
    return_type 'Stdlib::IP::Address::V4::Nosubnet'
  end

  def cidr_to_broadcast(ip)
    IPAddr.new(ip).to_range.last.to_s
  end
end