}

func getLbEndpointAddrs(eps []*endpoint.LbEndpoint) []string {
	addrs := make([]string, 0)
	for _, lbEp := range eps {
		addrs = append(addrs, lbEp.GetEndpoint().Address.GetSocketAddress().Address)
	}
	sort.Strings(addrs)
	return addrs

	if err != nil {
		return nil, err
	}
	addrs := addrsi.([]IPAddr)
	if shared {
		clone := make([]IPAddr, len(addrs))
		copy(clone, addrs)
		addrs = clone
	}
	return addrs, nil
}

// ipAddrsEface returns an empty interface slice of addrs.
func ipAddrsEface(addrs []IPAddr) []any {
	s := make([]any, len(addrs))
	for i, v := range addrs {
		s[i] = v
	}
	return s
}

	if interfaces, err = net.Interfaces(); err != nil {
		return false, fmt.Errorf("failed to get interfaces")
	}

	for _, ief := range interfaces {
		var addrs []net.Addr
		if addrs, err = ief.Addrs(); err != nil {
			return
		}
		for _, addr := range addrs {
			switch v := addr.(type) {
			case *net.IPNet:
				if v.IP.Equal(targetAddr) {
					return true, nil
				}
			}
		}
	}

		s = "0"
	}
	return s
}

// Addrs returns a list of unicast interface addresses for a specific
// interface.
func (ifi *Interface) Addrs() ([]Addr, error) {
	if ifi == nil {
		return nil, &OpError{Op: "route", Net: "ip+net", Source: nil, Addr: nil, Err: errInvalidInterface}
	}
	ifat, err := interfaceAddrTable(ifi)
	if err != nil {
		err = &OpError{Op: "route", Net: "ip+net", Source: nil, Addr: nil, Err: err}
	}
	return ifat, err

		}

		for _, ip := range svc.Status.LoadBalancer.Ingress {
			if ip.IP == "" {
				addrs = append(addrs, ip.Hostname)
			} else {
				addrs = append(addrs, ip.IP)
			}
		}

		addrs = append(addrs, svc.Spec.ExternalIPs...)
		return addrs
	}

	// get all pods acting as ingress gateways
	igSelector := getIngressGatewaySelector(ingressSelector, ingressService)

func (c *IPConn) WriteToIP(b []byte, addr *IPAddr) (int, error) {
	if !c.ok() {
		return 0, syscall.EINVAL
	}
	n, err := c.writeTo(b, addr)
	if err != nil {
		err = &OpError{Op: "write", Net: c.fd.net, Source: c.fd.laddr, Addr: addr.opAddr(), Err: err}
	}
	return n, err
}

// WriteTo implements the [PacketConn] WriteTo method.
func (c *IPConn) WriteTo(b []byte, addr Addr) (int, error) {
	if !c.ok() {

	if p.empty() {
		return nil, errors.New("mail: no address")
	}

	// address = mailbox / group
	// mailbox = name-addr / addr-spec
	// group = display-name ":" [group-list] ";" [CFWS]

	// addr-spec has a more restricted grammar than name-addr,
	// so try parsing it first, and fallback to name-addr.
	// TODO(dsymonds): Is this really correct?
	spec, err := p.consumeAddrSpec()
	if err == nil {
		var displayName string

		sa := &SockaddrInet6{}
		copy(sa.Addr[:], b[offsetofInet6:])
		return sa, nil
	case family == AF_INET6:
		sa := &SockaddrInet6{}
		if l-1 < offsetofInet6 {
			copy(sa.Addr[:], b[1:l])
		} else {
			copy(sa.Addr[:], b[l-offsetofInet6:l])
		}
		return sa, nil
	case b[0] == SizeofSockaddrInet4:
		sa := &SockaddrInet4{}
		copy(sa.Addr[:], b[offsetofInet4:])
		return sa, 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.

			}
		}
		if trace.DNSDone != nil {
			nt.DNSDone = func(netIPs []any, coalesced bool, err error) {
				addrs := make([]net.IPAddr, len(netIPs))
				for i, ip := range netIPs {
					addrs[i] = ip.(net.IPAddr)
				}
				trace.DNSDone(DNSDoneInfo{
					Addrs:     addrs,
					Coalesced: coalesced,
					Err:       err,
				})
			}
		}
		ctx = context.WithValue(ctx, nettrace.TraceKey{}, nt)
	}