listener.listeners[i].Close()
	}

	return nil
}

// Addr - net.Listener interface compatible method returns net.Addr.  In case of multiple TCP listeners, it returns '0.0.0.0' as IP address.
func (listener *httpListener) Addr() (addr net.Addr) {
	addr = listener.listeners[0].Addr()
	if len(listener.listeners) == 1 {
		return addr
	}

	tcpAddr := addr.(*net.TCPAddr)
	if ip := net.ParseIP("0.0.0.0"); ip != nil {

	}
	c.clusters = &cd
	return nil
}

func retrieveEndpointAddress(host *admin.HostStatus) string {
	addr := host.Address.GetSocketAddress()
	if addr != nil {
		return addr.Address
	}
	if pipe := host.Address.GetPipe(); pipe != nil {
		return "unix://" + pipe.Path
	}
	if internal := host.Address.GetEnvoyInternalAddress(); internal != nil {

	u, err := url.Parse(hostAddr)
	if err != nil {
		return "", "", err
	}

	addr = u.Host
	scheme = u.Scheme

	// Use the given parameter again if url.Parse()
	// didn't return any useful result.
	if addr == "" {
		addr = hostAddr
		scheme = "http"
	}

	// At this point, addr can be one of the following form:
	//	":9000"
	//	"localhost:9000"

		p.errorf("%s: expected immediate constant; found %s", op, obj.Dconv(prog, addr))
	}
	return addr.Offset
}

// getRegister checks that addr represents a register and returns its value.
func (p *Parser) getRegister(prog *obj.Prog, op obj.As, addr *obj.Addr) int16 {
	if addr.Type != obj.TYPE_REG || addr.Offset != 0 || addr.Name != 0 || addr.Index != 0 {

			}
		}
		addr := l.Addr()
		hosts = append(hosts, "http://"+addr.String())
		listeners = append(listeners, l)
	}
	return
}

func startHTTPServer(listener net.Listener, handler http.Handler) (server *httptest.Server) {
	server = httptest.NewUnstartedServer(handler)
	server.Config.Addr = listener.Addr().String()
	server.Listener = listener
	server.Start()

	raddr, _, _ := net.SplitHostPort(addr)
	if raddr == "" {
		return addr
	}
	return raddr
}

// GetSourceIP retrieves the IP from the request headers
// and falls back to r.RemoteAddr when necessary.
func GetSourceIP(r *http.Request) string {
	addr := GetSourceIPRaw(r)
	if strings.ContainsRune(addr, ':') {
		return "[" + addr + "]"
	}
	return addr

	p.addr = p.addr[0:0]
	p.isJump = p.arch.IsJump(word)
	for _, op := range operands {
		addr := p.address(op)
		if !p.isJump && addr.Reg < 0 { // Jumps refer to PC, a pseudo.
			p.errorf("illegal use of pseudo-register in %s", word)
		}
		p.addr = append(p.addr, addr)
	}
	if p.isJump {
		p.asmJump(op, cond, p.addr)
		return
	}
	p.asmInstruction(op, cond, p.addr)

	if err := scanner.Err(); err != nil {
		t.Fatalf("error reading symbols: %v", err)
	}
	return syms
}

func runAddr2Line(t *testing.T, dbgExePath, addr string) (funcname, path, lineno string) {
	cmd := testenv.Command(t, addr2linePath(t), dbgExePath)
	cmd.Stdin = strings.NewReader(addr)
	out, err := cmd.CombinedOutput()
	if err != nil {
		t.Fatalf("go tool addr2line %v: %v\n%s", os.Args[0], err, string(out))
	}

	return args.Error(0)
}

func (m *MockedIpsetDeps) clearEntriesWithIP(name string, ip netip.Addr) error {
	args := m.Called(name, ip)
	return args.Error(0)
}

func (m *MockedIpsetDeps) listEntriesByIP(name string) ([]netip.Addr, error) {
	args := m.Called(name)
	return args.Get(0).([]netip.Addr), args.Error(1)

		}).DialContext
	}

	return func(ctx context.Context, network, addr string) (conn net.Conn, err error) {
		host, port, err := net.SplitHostPort(addr)
		if err != nil {
			return nil, err
		}

		if net.ParseIP(host) != nil {
			// For IP only setups there is no need for DNS lookups.
			return baseDialCtx(ctx, "tcp", addr)
		}

		ips, err := lookupHost(ctx, host)
		if err != nil {
			return nil, err