}
	bodyOff := int(nativeEndian.Uint16(b[4:6]))
	if len(b) < bodyOff {
		return nil, errInvalidMessage
	}
	m := &InterfaceAddrMessage{
		Version: int(b[2]),
		Type:    int(b[3]),
		Flags:   int(nativeEndian.Uint32(b[12:16])),
		Index:   int(nativeEndian.Uint16(b[6:8])),
		raw:     b[:l],
	}
	var err error
	m.Addrs, err = parseAddrs(uint(nativeEndian.Uint32(b[12:16])), parseKernelInetAddr, b[bodyOff:])

	}
	return kemInfo.curve.NewPublicKey(bytes)
}

type uint128 struct {
	hi, lo uint64
}

func (u uint128) addOne() uint128 {
	lo, carry := bits.Add64(u.lo, 1, 0)
	return uint128{u.hi + carry, lo}
}

func (u uint128) bitLen() int {
	return bits.Len64(u.hi) + bits.Len64(u.lo)
}

func (u uint128) bytes() []byte {
	b := make([]byte, 16)
	binary.BigEndian.PutUint64(b[0:], u.hi)

	if r0 != 0 {
		regerrno = syscall.Errno(r0)
	}
	return
}

func regLoadMUIString(key syscall.Handle, name *uint16, buf *uint16, buflen uint32, buflenCopied *uint32, flags uint32, dir *uint16) (regerrno error) {

package syscall

type WSAData struct {
	Version      uint16
	HighVersion  uint16
	MaxSockets   uint16
	MaxUdpDg     uint16
	VendorInfo   *byte
	Description  [WSADESCRIPTION_LEN + 1]byte
	SystemStatus [WSASYS_STATUS_LEN + 1]byte
}

type Servent struct {
	Name    *byte
	Aliases **byte
	Proto   *byte
	Port    uint16

package syscall

type WSAData struct {
	Version      uint16
	HighVersion  uint16
	MaxSockets   uint16
	MaxUdpDg     uint16
	VendorInfo   *byte
	Description  [WSADESCRIPTION_LEN + 1]byte
	SystemStatus [WSASYS_STATUS_LEN + 1]byte
}

type Servent struct {
	Name    *byte
	Aliases **byte
	Proto   *byte
	Port    uint16

		}
	}
}

type decodeTest struct {
	in  []uint16
	out []rune
}

var decodeTests = []decodeTest{
	{[]uint16{1, 2, 3, 4}, []rune{1, 2, 3, 4}},
	{[]uint16{0xffff, 0xd800, 0xdc00, 0xd800, 0xdc01, 0xd808, 0xdf45, 0xdbff, 0xdfff},
		[]rune{0xffff, 0x10000, 0x10001, 0x12345, 0x10ffff}},
	{[]uint16{0xd800, 'a'}, []rune{0xfffd, 'a'}},
	{[]uint16{0xdfff}, []rune{0xfffd}},
}

// the value for b is by r.value + (b - r.lo) * stride.
func (t *sparseBlocks) lookup(n uint32, b byte) uint16 {
	offset := t.offset[n]
	header := t.values[offset]
	lo := offset + 1
	hi := lo + uint16(header.lo)
	for lo < hi {
		m := lo + (hi-lo)/2
		r := t.values[m]
		if r.lo <= b && b <= r.hi {
			return r.value + uint16(b-r.lo)*header.value
		}
		if b < r.lo {
			hi = m
		} else {
			lo = m + 1
		}
	}

// the value for b is by r.value + (b - r.lo) * stride.
func (t *sparseBlocks) lookup(n uint32, b byte) uint16 {
	offset := t.offset[n]
	header := t.values[offset]
	lo := offset + 1
	hi := lo + uint16(header.lo)
	for lo < hi {
		m := lo + (hi-lo)/2
		r := t.values[m]
		if r.lo <= b && b <= r.hi {
			return r.value + uint16(b-r.lo)*header.value
		}
		if b < r.lo {
			hi = m
		} else {
			lo = m + 1
		}
	}

		byte(v>>8),
		byte(v>>16),
		byte(v>>24),
	)
}

func LeUint64(b []byte) uint64 {
	_ = b[7] // bounds check hint to compiler; see golang.org/issue/14808
	return uint64(b[0]) | uint64(b[1])<<8 | uint64(b[2])<<16 | uint64(b[3])<<24 |
		uint64(b[4])<<32 | uint64(b[5])<<40 | uint64(b[6])<<48 | uint64(b[7])<<56
}

func LePutUint64(b []byte, v uint64) {
	_ = b[7] // early bounds check to guarantee safety of writes below
	b[0] = byte(v)

package ir

type bitset8 uint8

func (f *bitset8) set(mask uint8, b bool) {
	if b {
		*(*uint8)(f) |= mask
	} else {
		*(*uint8)(f) &^= mask
	}
}

func (f bitset8) get2(shift uint8) uint8 {
	return uint8(f>>shift) & 3
}

// set2 sets two bits in f using the bottom two bits of b.
func (f *bitset8) set2(shift uint8, b uint8) {
	// Clear old bits.
	*(*uint8)(f) &^= 3 << shift
	// Set new bits.