Multiaddr [4]byte /* in_addr */
	Interface [4]byte /* in_addr */
}

type IPv6Mreq struct {
	Multiaddr [16]byte /* in6_addr */
	Interface uint32
}

type Msghdr struct {
	Name       *byte
	Iov        *Iovec
	Control    *byte
	Flags      int32
	Namelen    int32
	Iovlen     int32
	Controllen int32
}

type Cmsghdr struct {
	Len   int32
	Level int32
	Type  int32
}