if err != nil {
					return nil, os.NewSyscallError("parsenetlinkrouteattr", err)
				}
				ifa := newAddr(ifam, attrs)
				if ifa != nil {
					ifat = append(ifat, ifa)
				}
			}
		}
	}
	return ifat, nil
}

func newAddr(ifam *syscall.IfAddrmsg, attrs []syscall.NetlinkRouteAttr) Addr {
	var ipPointToPoint bool
	// Seems like we need to make sure whether the IP interface

				}
				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

				ift[n].HardwareAddr = make([]byte, len(sa.Addr))
				copy(ift[n].HardwareAddr, sa.Addr)
			}
			for _, sys := range m.Sys() {
				if imx, ok := sys.(*route.InterfaceMetrics); ok {
					ift[n].MTU = imx.MTU
					break
				}
			}
			n++
			if ifindex == m.Index {
				return ift[:n], nil
			}
		}
	}
	return ift[:n], nil
}

func linkFlags(rawFlags int) Flags {
	var f Flags

		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})
	}

	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
}

		switch ifa := ifa.(type) {
		case *IPAddr:
			if ifa == nil || ifa.IP == nil || ifa.IP.IsUnspecified() || !ifa.IP.IsMulticast() {
				return nil, fmt.Errorf("unexpected value: %#v", ifa)
			}
			if len(ifa.IP) != IPv6len {
				return nil, fmt.Errorf("should be internal representation either IPv6 or IPv4-mapped IPv6 address: %#v", ifa)
			}
			if ifa.IP.To4() != nil {
				stats.ipv4++
			}

	}
	if len(ift) != 0 {
		zoneCache.update(ift, false)
	}
	return ift, nil
}

// InterfaceAddrs returns a list of the system's unicast interface
// addresses.
//
// The returned list does not identify the associated interface; use
// Interfaces and [Interface.Addrs] for more detail.
func InterfaceAddrs() ([]Addr, error) {
	ifat, err := interfaceAddrTable(nil)
	if err != nil {

	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
			}
		}

		} else {
			time.Sleep(3 * time.Millisecond)
		}
		ift, err := Interfaces()
		if err != nil {
			ti.teardown()
			t.Fatal(err)
		}
		for _, ifi := range ift {
			if ti.name != ifi.Name {
				continue
			}
			ifat, err := ifi.Addrs()
			if err != nil {
				ti.teardown()
				t.Fatal(err)
			}
			for _, ifa := range ifat {
				if ip.Equal(ifa.(*IPNet).IP) {
					ti.teardown()
					t.Fatalf("got %v", ifa)

						ip = make(IP, IPv6len)
						copy(ip, ipsa.Addr[:])
						mask = make(IPMask, IPv6len)
						copy(mask, nmsa.Addr[:])
					}
					ifa := &IPNet{IP: ip, Mask: mask}
					ifat = append(ifat, ifa)
				}
			}
		}
		tab = tab[ifm.Msglen:]
	}

	return ifat, nil
}

// interfaceMulticastAddrTable returns addresses for a specific
// interface.