router.PathPrefix("/debug/pprof/").HandlerFunc(pprof.Index)
	}
	registerHome(router, mainLayout)

	addr := o.Address
	if addr == "*" {
		addr = ""
	}

	// Canonicalize the address and resolve a dynamic port if necessary
	listener, err := net.Listen("tcp", fmt.Sprintf("%s:%d", addr, o.Port))
	if err != nil {
		log.Errorf("Unable to start ControlZ: %v", err)
		return nil, err
	}

	return randInt() % n
}

// reverseaddr returns the in-addr.arpa. or ip6.arpa. hostname of the IP
// address addr suitable for rDNS (PTR) record lookup or an error if it fails
// to parse the IP address.
func reverseaddr(addr string) (arpa string, err error) {
	ip := ParseIP(addr)
	if ip == nil {
		return "", &DNSError{Err: "unrecognized address", Name: addr}
	}
	if ip.To4() != nil {

	testenv.MustHaveExternalNetwork(t)

	addr, err := localIP()
	if err != nil {
		t.Errorf("failed to get local ip: %s", err)
	}
	names, err := LookupAddr(addr.String())
	if err != nil {
		t.Errorf("failed %s: %s", addr, err)
	}
	if len(names) == 0 {
		t.Errorf("no results")
	}
	expected, err := lookupPTR(addr.String())
	if err != nil {

func AppendPortIfNeeded(addr string, port int32) string {
	// Return if address is already in "ipv4:port" or "[ipv6]:port" format.
	if _, _, err := net.SplitHostPort(addr); err == nil {
		return addr
	}

	// Simply return for invalid case. This should be caught by validation instead.
	ip := netutils.ParseIPSloppy(addr)
	if ip == nil {
		return addr
	}

	// Append port to address.

	return ptracePeek(PTRACE_PEEKDATA, pid, addr, out)
}

func ptracePoke(pokeReq int, peekReq int, pid int, addr uintptr, data []byte) (count int, err error) {
	// As for ptracePeek, we need to align our accesses to deal
	// with the possibility of straddling an invalid page.

	// Leading edge.
	n := 0
	if addr%sizeofPtr != 0 {
		var buf [sizeofPtr]byte
		err = ptracePtr(peekReq, pid, addr-addr%sizeofPtr, unsafe.Pointer(&buf[0]))

	addr, dialer, err := util.GetAddressAndDialer(socket)
	if err != nil {
		return nil, nil, err
	}
	ctx, cancel := context.WithTimeout(context.Background(), connectionTimeout)
	defer cancel()

	conn, err := grpc.DialContext(ctx, addr,
		grpc.WithTransportCredentials(insecure.NewCredentials()),
		grpc.WithContextDialer(dialer),

		defer cancel()
	}

	rawConn, err := netDialer.DialContext(ctx, network, addr)
	if err != nil {
		return nil, err
	}

	colonPos := strings.LastIndex(addr, ":")
	if colonPos == -1 {
		colonPos = len(addr)
	}
	hostname := addr[:colonPos]

	if config == nil {
		config = defaultConfig()
	}
	// If no ServerName is set, infer the ServerName

					// value to keep things simple.
					used.Add(n)
					changed = true
				}
			}
		}
		if node == nil {
			return
		}
		if addr[v] == nil {
			// The address of an auto reaches this op.
			addr[v] = node
			changed = true
			return
		}
		if addr[v] != node {
			// This doesn't happen in practice, but catch it just in case.
			used.Add(node)
			changed = true
		}
		return
	}

	newConn := func() *http.Transport {
		dialContext := func(ctx context.Context, network, addr string) (net.Conn, error) {
			return newDialer(cfg).DialContext(ctx, network, addr)
		}
		if len(cfg.UDS) > 0 {
			dialContext = func(ctx context.Context, network, addr string) (net.Conn, error) {
				return newDialer(cfg).DialContext(ctx, "unix", cfg.UDS)
			}
		}
		out := &http.Transport{

		}

		for _, lbEp := range ep.LbEndpoints {
			addr := util.GetEndpointHost(lbEp)
			found := false
			for _, wantLbEp := range want[i].LbEps {
				if addr == wantLbEp.Address {
					found = true

					// Now compare the weight.
					if lbEp.GetLoadBalancingWeight().Value != wantLbEp.Weight {
						return fmt.Errorf("unexpected weight for endpoint %s: got %v, want %v",
							addr, lbEp.GetLoadBalancingWeight().Value, wantLbEp.Weight)