}

// TCPAddrFromAddrPort returns addr as a [TCPAddr]. If addr.IsValid() is false,
// then the returned TCPAddr will contain a nil IP field, indicating an
// address family-agnostic unspecified address.
func TCPAddrFromAddrPort(addr netip.AddrPort) *TCPAddr {
	return &TCPAddr{
		IP:   addr.Addr().AsSlice(),
		Zone: addr.Addr().Zone(),
		Port: int(addr.Port()),
	}
}

func (h *FakeNetlinkHandle) GetLocalAddresses(dev string) (sets.Set[string], error) {
	res := sets.New[string]()
	// list all addresses from a given network interface.
	for _, addr := range h.localAddresses[dev] {
		if h.isValidForSet(addr) {
			res.Insert(addr)
		}
	}
	return res, nil
}
func (h *FakeNetlinkHandle) GetAllLocalAddresses() (sets.Set[string], error) {
	res := sets.New[string]()

		addr, err := ResolveIPAddr(tt.network, tt.litAddrOrName)
		if !reflect.DeepEqual(addr, tt.addr) || !reflect.DeepEqual(err, tt.err) {
			t.Errorf("ResolveIPAddr(%q, %q) = %#v, %v, want %#v, %v", tt.network, tt.litAddrOrName, addr, err, tt.addr, tt.err)
			continue
		}
		if err == nil {
			addr2, err := ResolveIPAddr(addr.Network(), addr.String())
			if !reflect.DeepEqual(addr2, tt.addr) || err != tt.err {

	}
	return n, addr, err
}

// ReadFrom implements the [PacketConn] ReadFrom method.
func (c *UnixConn) ReadFrom(b []byte) (int, Addr, error) {
	if !c.ok() {
		return 0, nil, syscall.EINVAL
	}
	n, addr, err := c.readFrom(b)
	if err != nil {
		err = &OpError{Op: "read", Net: c.fd.net, Source: c.fd.laddr, Addr: c.fd.raddr, Err: err}
	}
	if addr == nil {
		return n, nil, err
	}

				case *syscall.SockaddrInet4:
					ifat = append(ifat, &IPNet{IP: IPv4(sa.Addr[0], sa.Addr[1], sa.Addr[2], sa.Addr[3]), Mask: CIDRMask(int(puni.OnLinkPrefixLength), 8*IPv4len)})
				case *syscall.SockaddrInet6:
					ifa := &IPNet{IP: make(IP, IPv6len), Mask: CIDRMask(int(puni.OnLinkPrefixLength), 8*IPv6len)}
					copy(ifa.IP, sa.Addr[:])
					ifat = append(ifat, ifa)
				}
			}

func stat(path string, edir []byte) (n int, err error) {
	var _p0 *byte
	_p0, err = BytePtrFromString(path)
	if err != nil {
		return
	}
	var _p1 unsafe.Pointer
	if len(edir) > 0 {
		_p1 = unsafe.Pointer(&edir[0])
	} else {
		_p1 = unsafe.Pointer(&_zero)
	}
	r0, _, e1 := Syscall(SYS_STAT, uintptr(unsafe.Pointer(_p0)), uintptr(_p1), uintptr(len(edir)))
	n = int(r0)
	if int32(r0) == -1 {

	// DI:SI = delta
	MOVL	delta_lo+4(FP), SI
	MOVL	delta_hi+8(FP), DI
	// DX:AX = *addr
	MOVL	0(BP), AX
	MOVL	4(BP), DX
addloop:
	// CX:BX = DX:AX (*addr) + DI:SI (delta)
	MOVL	AX, BX
	MOVL	DX, CX
	ADDL	SI, BX
	ADCL	DI, CX

	// if *addr == DX:AX {
	//	*addr = CX:BX
	// } else {
	//	DX:AX = *addr
	// }
	// all in one instruction
	LOCK
	CMPXCHG8B	0(BP)

	JNZ	addloop

			const setInt64 = (addr, v) => {
				this.mem.setUint32(addr + 0, v, true);
				this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true);
			}

			const setInt32 = (addr, v) => {
				this.mem.setUint32(addr + 0, v, true);
			}

			const getInt64 = (addr) => {
				const low = this.mem.getUint32(addr + 0, true);
				const high = this.mem.getInt32(addr + 4, true);
				return low + high * 4294967296;

)

const raceenabled = true

func raceAcquire(addr unsafe.Pointer) {
	runtime.RaceAcquire(addr)
}

func raceReleaseMerge(addr unsafe.Pointer) {
	runtime.RaceReleaseMerge(addr)
}

func raceReadRange(addr unsafe.Pointer, len int) {
	runtime.RaceReadRange(addr, len)
}

func raceWriteRange(addr unsafe.Pointer, len int) {
	runtime.RaceWriteRange(addr, len)

// provide an IPv6 address or ensure the hostname resolves to only IPv6 addresses.
func ResolveAddr(addr string, lookupIPAddr ...lookupIPAddrType) (string, error) {
	if addr == "" {
		return "", ErrResolveNoAddress
	}
	host, port, err := net.SplitHostPort(addr)
	if err != nil {
		return "", err
	}

	log.Infof("Attempting to lookup address: %s", host)