return typecheck.LookupRuntime(name, t.Elem(), t.Elem())
	}
	base.Fatalf("chanfn %d", n)
	return nil
}

func mapfn(name string, t *types.Type, isfat bool) ir.Node {
	if !t.IsMap() {
		base.Fatalf("mapfn %v", t)
	}
	if mapfast(t) == mapslow || isfat {
		return typecheck.LookupRuntime(name, t.Key(), t.Elem(), t.Key(), t.Elem())
	}
	return typecheck.LookupRuntime(name, t.Key(), t.Elem(), t.Elem())
}

		}
	}

	return x
}

// isfat reports whether a variable of type t needs multiple assignments to initialize.
// For example:
//
//	type T struct { x, y int }
//	x := T{x: 0, y: 1}
//
// Then we need:
//
//	var t T
//	t.x = 0
//	t.y = 1
//
// to fully initialize t.
func isfat(t *types.Type) bool {
	if t != nil {
		switch t.Kind() {

				}
				switch sa := sa.(type) {
				case *syscall.SockaddrInet4:
					ifat = append(ifat, &IPAddr{IP: IPv4(sa.Addr[0], sa.Addr[1], sa.Addr[2], sa.Addr[3])})
				case *syscall.SockaddrInet6:
					ifa := &IPAddr{IP: make(IP, IPv6len)}
					copy(ifa.IP, sa.Addr[:])
					ifat = append(ifat, ifa)
				}
			}
		}
	}
	return ifat, nil
}

// interfaceMulticastAddrTable returns addresses for a specific

			case *route.Inet6Addr:
				ip = make(IP, IPv6len)
				copy(ip, sa.IP[:])
			}
			if ip != nil && mask != nil { // NetBSD may contain route.LinkAddr
				ifat = append(ifat, &IPNet{IP: ip, Mask: mask})
			}
		}
	}
	return ifat, nil

		Time:       metav1.NewTime(timestamp),
		Interfaces: make([]statsapi.InterfaceStats, 0),
	}

	iStat := hcsStatToInterfaceStat(hcsStats, endpointName)

	// TODO: add support of multiple interfaces for getting default interface.
	result.Interfaces = append(result.Interfaces, iStat)
	result.InterfaceStats = iStat

	return result
}

		var err error
		ift, err = interfaceTable(0)
		if err != nil {
			return nil, err
		}
	}
	ifat, err := addrTable(ift, ifi, msgs)
	if err != nil {
		return nil, err
	}
	return ifat, nil
}

func addrTable(ift []Interface, ifi *Interface, msgs []syscall.NetlinkMessage) ([]Addr, error) {
	var ifat []Addr
loop:
	for _, m := range msgs {
		switch m.Header.Type {
		case syscall.NLMSG_DONE:

	var ifat []net.Addr
	ifat = []net.Addr{addrStruct{val: "169.254.162.166/16"}, addrStruct{val: "fe80::200/10"}}
	if intf.Name == LoopbackInterfaceName {
		ifat = []net.Addr{addrStruct{val: "::1/128"}, addrStruct{val: "127.0.0.1/8"},
			// global addresses on loopback interface
			addrStruct{val: "10.1.1.1/32"}, addrStruct{val: "fd00:1:1::1/128"}}
	}
	return ifat, nil
}

		return nil, err
	}
	var ifat []Addr
	for _, a := range as {
		var ip IP
		var mask IPMask
		switch a := a.(type) {
		case *lif.Inet4Addr:
			ip = IPv4(a.IP[0], a.IP[1], a.IP[2], a.IP[3])
			mask = CIDRMask(a.PrefixLen, 8*IPv4len)
		case *lif.Inet6Addr:
			ip = make(IP, IPv6len)
			copy(ip, a.IP[:])
			mask = CIDRMask(a.PrefixLen, 8*IPv6len)
		}
		ifat = append(ifat, &IPNet{IP: ip, Mask: mask})
	}

// suitable address is found.
func ipv6LinkLocalUnicastAddr(ifi *Interface) string {
	if ifi == nil {
		return ""
	}
	ifat, err := ifi.Addrs()
	if err != nil {
		return ""
	}
	for _, ifa := range ifat {
		if ifa, ok := ifa.(*IPNet); ok {
			if ifa.IP.To4() == nil && ifa.IP.IsLinkLocalUnicast() {
				return ifa.IP.String()
			}
		}
	}
	return ""
}

	if b {
		return 1
	}
	return 0
}

func interfaceToIPv4Addr(ifi *Interface) (IP, error) {
	if ifi == nil {
		return IPv4zero, nil
	}
	ifat, err := ifi.Addrs()
	if err != nil {
		return nil, err
	}
	for _, ifa := range ifat {
		switch v := ifa.(type) {
		case *IPAddr:
			if v.IP.To4() != nil {
				return v.IP, nil
			}
		case *IPNet:
			if v.IP.To4() != nil {
				return v.IP, nil