Method IsBroadcast

src/tier1/netadr.cpp:284–311

----------------------------------------------------------------------------- Purpose: Is this IP address a broadcast address? -----------------------------------------------------------------------------

// Purpose: Is this IP address a broadcast address?
//-----------------------------------------------------------------------------
bool CIPAddress::IsBroadcast() const
{
	// The code below will be incorrect if we are a ipv4-mapped-to-ipv6 address
	// So - unmap ourselves to a temp CIPAddress and return it
	if ( IsMappedIPv4() )
	{
		CIPAddress ipTemp = *this;
		ipTemp.BConvertMappedToIPv4();
		return ipTemp.IsBroadcast();
	}

	switch ( m_usType )
	{
		case k_EIPTypeInvalid:
		case k_EIPTypeLoopbackDeprecated:
			return false;
		case k_EIPTypeBroadcastDeprecated:
			return true;
		case k_EIPTypeV4:
			return m_unIPv4 == 0xffffffff; // 255.255.255.255
		case k_EIPTypeV6:
			// There might other IPs than could be construed as "broadcast",
			// but just check for the one used by SetIPV6Broadcast()
			return memcmp( m_rgubIPv6, k_ipv6Bytes_LinkLocalAllNodes, 16 ) == 0;
	}
	Assert( false );
	return false;
}

//-----------------------------------------------------------------------------
// Purpose: Get the ipv6 bytes (network byte order) of this address. Works even