Sa_family    uint16
	Dev_idx      uint32
	Target_idx   uint32
	Nfc_protocol uint32
}

type _Socklen uint32

type Linger struct {
	Onoff  int32
	Linger int32
}

type IPMreq struct {
	Multiaddr [4]byte /* in_addr */
	Interface [4]byte /* in_addr */
}

type IPMreqn struct {
	Multiaddr [4]byte /* in_addr */
	Address   [4]byte /* in_addr */
	Ifindex   int32
}