}

// Family implements the Family method of Addr interface.
func (a *Inet6Addr) Family() int { return syscall.AF_INET6 }

// Addrs returns a list of interface addresses.
//
// The provided af must be an address family and name must be a data
// link name. The zero value of af or name means a wildcard.
func Addrs(af int, name string) ([]Addr, error) {
	eps, err := newEndpoints(af)
	if len(eps) == 0 {

	testCases := []struct {
		tcase    string
		addr     []net.Addr
		family   AddressFamily
		expected net.IP
	}{
		{"no ipv4", []net.Addr{addrStruct{val: "2001::5/64"}}, familyIPv4, nil},
		{"no ipv6", []net.Addr{addrStruct{val: "10.128.0.4/32"}}, familyIPv6, nil},
		{"invalidV4CIDR", []net.Addr{addrStruct{val: "10.20.30.40.50/24"}}, familyIPv4, nil},

type machoExe struct {
	f *macho.File
}

func (x *machoExe) ReadData(addr, size uint64) ([]byte, error) {
	for _, load := range x.f.Loads {
		seg, ok := load.(*macho.Segment)
		if !ok {
			continue
		}
		if seg.Addr <= addr && addr <= seg.Addr+seg.Filesz-1 {
			if seg.Name == "__PAGEZERO" {
				continue
			}
			n := seg.Addr + seg.Filesz - addr
			if n > size {
				n = size
			}

			ip = ip[:IPv4len]
		}
	}
	switch net {
	case "tcp", "tcp4", "tcp6":
		addr = &TCPAddr{IP: ip, Port: port}
	case "udp", "udp4", "udp6":
		addr = &UDPAddr{IP: ip, Port: port}
	default:
		return nil, UnknownNetworkError(net)
	}
	return addr, nil
}

func startPlan9(ctx context.Context, net string, addr Addr) (ctl *os.File, dest, proto, name string, err error) {
	var (
		ip   IP
		port int
	)

func SwapInt64(addr *int64, new int64) (old int64)

// SwapUint32 atomically stores new into *addr and returns the previous *addr value.
// Consider using the more ergonomic and less error-prone [Uint32.Swap] instead.
func SwapUint32(addr *uint32, new uint32) (old uint32)

// SwapUint64 atomically stores new into *addr and returns the previous *addr value.

	wantInlinable := []string{
		"(*uint128).halves",
		"Addr.BitLen",
		"Addr.hasZone",
		"Addr.Is4",
		"Addr.Is4In6",
		"Addr.Is6",
		"Addr.IsInterfaceLocalMulticast",
		"Addr.IsValid",
		"Addr.IsUnspecified",
		"Addr.Less",
		"Addr.Unmap",
		"Addr.Zone",
		"Addr.v4",
		"Addr.v6",
		"Addr.v6u16",
		"Addr.withoutZone",
		"AddrPortFrom",
		"AddrPort.Addr",
		"AddrPort.Port",
		"AddrPort.IsValid",

	// associative entity.
	type keyString string
	keyToAddrReadyMap := map[keyString]addressSet{}
	addrReadyMapKeyToPorts := map[keyString][]v1.EndpointPort{}
	for port, addrs := range portToAddrReadyMap {
		key := keyString(hashAddresses(addrs))
		keyToAddrReadyMap[key] = addrs
		if port.Port > 0 { // avoid sentinels
			addrReadyMapKeyToPorts[key] = append(addrReadyMapKeyToPorts[key], port)
		} else {

                }
            }
        }
    }

    NbtAddress[] getAllByName( Name name, InetAddress addr )
                                            throws UnknownHostException {
        int n;
        NameQueryRequest request = new NameQueryRequest( name );
        NameQueryResponse response = new NameQueryResponse();

		lastByte  byte
		primaries addrList
		fallbacks addrList
	}{
		{0, addrList{addrs[0]}, addrList{addrs[1], addrs[2]}},
		{1, addrList{addrs[0], addrs[2]}, addrList{addrs[1]}},
		{2, addrList{addrs[0], addrs[1]}, addrList{addrs[2]}},
		{3, addrList{addrs[0], addrs[1], addrs[2]}, nil},
	}
	for i, tt := range cases {
		// Inverting the function's output should not affect the outcome.
		for _, invert := range []bool{false, true} {

		if len(f) < 2 {
			continue
		}
		addr := f[1]
		if i := bytealg.IndexByteString(addr, '!'); i >= 0 {
			addr = addr[:i] // remove port
		}
		if ParseIP(addr) == nil {
			continue
		}
		// only return unique addresses
		for _, a := range addrs {
			if a == addr {
				continue loop
			}
		}
		addrs = append(addrs, addr)
	}
	return
}