return fmt.Errorf("port reuse is not supported on Windows")
}

// Windows supports SO_REUSEADDR, but it may cause undefined behavior, as
// there is no protection against port hijacking.
func permitAddressReuse(network, addr string, conn syscall.RawConn) error {
	return fmt.Errorf("address reuse is not supported on Windows")

		if err := syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, unix.SO_REUSEPORT, 1); err != nil {
			klog.Warningf("failed to set SO_REUSEPORT on socket: %v", err)
		}
	})
}

func permitAddressReuse(network, addr string, conn syscall.RawConn) error {
	return conn.Control(func(fd uintptr) {
		if err := syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, unix.SO_REUSEADDR, 1); err != nil {

		c := net.ListenConfig{}

		ctls := multipleControls{}
		if s.PermitPortSharing {
			ctls = append(ctls, permitPortReuse)
		}
		if s.PermitAddressSharing {
			ctls = append(ctls, permitAddressReuse)
		}
		if len(ctls) > 0 {
			c.Control = ctls.Control
		}

		s.Listener, s.BindPort, err = CreateListener(s.BindNetwork, addr, c)
		if err != nil {