name := sa.Name
	n := len(name)
	if n >= len(sa.raw.Path) || n == 0 {
		return nil, 0, EINVAL
	}
	sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL
	sa.raw.Family = AF_UNIX
	for i := 0; i < n; i++ {
		sa.raw.Path[i] = int8(name[i])
	}
	return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
}

func (sa *SockaddrDatalink) sockaddr() (unsafe.Pointer, _Socklen, error) {

	name := sa.Name
	n := len(name)
	if n >= len(sa.raw.Path) || n == 0 {
		return nil, 0, EINVAL
	}
	sa.raw.Len = byte(3 + n) // 2 for Family, Len; 1 for NUL
	sa.raw.Family = AF_UNIX
	for i := 0; i < n; i++ {
		sa.raw.Path[i] = int8(name[i])
	}
	return unsafe.Pointer(&sa.raw), _Socklen(sa.raw.Len), nil
}

func (sa *SockaddrDatalink) sockaddr() (unsafe.Pointer, _Socklen, error) {

// Constant expected by package but not supported
const (
	_ = iota
	TIOCSCTTY
	SYS_EXECVE
	SYS_FCNTL
)

const (
	F_DUPFD_CLOEXEC = 0
	// AF_LOCAL doesn't exist on AIX
	AF_LOCAL = AF_UNIX

	_F_DUP2FD_CLOEXEC = 0
)

func (ts *StTimespec_t) Unix() (sec int64, nsec int64) {
	return int64(ts.Sec), int64(ts.Nsec)
}

func (ts *StTimespec_t) Nano() int64 {

	AF_INTF                         = 20
	AF_IUCV                         = 17
	AF_LAT                          = 14
	AF_LINK                         = 18
	AF_LOCAL                        = AF_UNIX // AF_LOCAL is an alias for AF_UNIX
	AF_MAX                          = 30
	AF_NBS                          = 7
	AF_NDD                          = 23
	AF_NETWARE                      = 22
	AF_NS                           = 6

	name := sa.Name
	n := len(name)
	if n > len(sa.raw.Path) {
		return nil, 0, EINVAL
	}
	if n == len(sa.raw.Path) && name[0] != '@' {
		return nil, 0, EINVAL
	}
	sa.raw.Family = AF_UNIX
	for i := 0; i < n; i++ {
		sa.raw.Path[i] = uint8(name[i])
	}
	// length is family (uint16), name, NUL.
	sl := _Socklen(2)
	if n > 0 {
		sl += _Socklen(n) + 1
	}

}

func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
	name := sa.Name
	n := len(name)
	if n >= len(sa.raw.Path) {
		return nil, 0, EINVAL
	}
	sa.raw.Family = AF_UNIX
	for i := 0; i < n; i++ {
		sa.raw.Path[i] = int8(name[i])
	}
	// length is family (uint16), name, NUL.
	sl := _Socklen(2)
	if n > 0 {
		sl += _Socklen(n) + 1
	}

	}
	defer func() {
		c.Close()
		os.Remove(addr)
	}()

	off := make(chan bool)
	data := [5]byte{1, 2, 3, 4, 5}
	go func() {
		defer func() { off <- true }()
		s, err := syscall.Socket(syscall.AF_UNIX, syscall.SOCK_DGRAM, 0)
		if err != nil {
			t.Error(err)
			return
		}
		defer syscall.Close(s)
		rsa := &syscall.SockaddrUnix{Name: addr}
		if err := syscall.Sendto(s, data[:], 0, rsa); err != nil {

	StandardDate Systemtime
	StandardBias int32
	DaylightName [32]uint16
	DaylightDate Systemtime
	DaylightBias int32
}

// Socket related.

const (
	AF_UNSPEC  = 0
	AF_UNIX    = 1
	AF_INET    = 2
	AF_INET6   = 23
	AF_NETBIOS = 17

	SOCK_STREAM    = 1
	SOCK_DGRAM     = 2
	SOCK_RAW       = 3
	SOCK_SEQPACKET = 5

	IPPROTO_IP   = 0
	IPPROTO_IPV6 = 0x29

}

func (sa *SockaddrUnix) sockaddr() (unsafe.Pointer, _Socklen, error) {
	name := sa.Name
	n := len(name)
	if n >= len(sa.raw.Path) {
		return nil, 0, EINVAL
	}
	sa.raw.Family = AF_UNIX
	for i := 0; i < n; i++ {
		sa.raw.Path[i] = int8(name[i])
	}
	// length is family (uint16), name, NUL.
	sl := _Socklen(2)
	if n > 0 {
		sl += _Socklen(n) + 1
	}

type SockaddrInet6 struct {
	Port   int
	ZoneId uint32
	Addr   [16]byte
	raw    RawSockaddrInet6
}

// SockaddrUnix implements the Sockaddr interface for AF_UNIX type sockets.
type SockaddrUnix struct {
	Name string
	raw  RawSockaddrUnix
}

func Bind(fd int, sa Sockaddr) (err error) {
	ptr, n, err := sa.sockaddr()
	if err != nil {
		return err
	}