/** @details A network address defines the "bottom-most" address for a given network.
* @param ip An IP address on the network.
* @param netmask The netmask defining the network range.
* @returns The network address.
*/
_CGUL_EXPORT CGUL::Network::IPAddress CGUL::Network::IPAddress::CalculateNetwork(const IPAddress& ip, const IPAddress& netmask)
{
if (!ip.IsValid() || ip.GetType() != netmask.GetType())
{
throw NetworkException(NetworkExceptionCode::FAILED_CALCULATE_ADDRESS, NetworkExceptionReason::ADDRESS_MISMATCH);
}
if (ip.GetType() == IPAddressType::IPV4)
{
return IPAddress(ip.ToUInt32() & netmask.ToUInt32());
}
else
{
UInt64 network[2];
network[0] = ip.address[0] & netmask.address[0];
network[1] = ip.address[1] & netmask.address[1];
return IPAddress(network);
}
}
/** @details The broadcast address can only be calculated on a IPv4 network. While it is
* technically possible to calculate an IPv6 broadcast address, the IPv6 protocol has dropped
* support for broadcasting. Since broadcasting is not supported in IPv6, this method will result
* in an exception given an IPv6 address.
* @param ip An IP address on the network.
* @param netmask The netmask defining the network range.
* @returns The broadcast address.
*/
_CGUL_EXPORT CGUL::Network::IPAddress CGUL::Network::IPAddress::CalculateBroadcast(const IPAddress& ip, const IPAddress& netmask)
{
if (ip.GetType() == IPAddressType::IPV6 || netmask.GetType() == IPAddressType::IPV6)
{
throw NetworkException(NetworkExceptionCode::FAILED_CALCULATE_ADDRESS, NetworkExceptionReason::ADDRESS_INVALID);
}
if (!ip.IsValid() || ip.GetType() != netmask.GetType())
{
throw NetworkException(NetworkExceptionCode::FAILED_CALCULATE_ADDRESS, NetworkExceptionReason::ADDRESS_MISMATCH);
}
return IPAddress(ip.ToUInt32() | (~netmask.ToUInt32()));
}
