assert.Error(t, err)
		})
	}
}

func TestValidateIPv4LoopbackCidr_Valid(t *testing.T) {
	cases := []struct {
		name string
		cidr string
	}{
		{
			name: "valid IPv4 loopback CIDR",
			cidr: "127.0.0.1/32",
		},
	}

	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			err := ValidateIPv4LoopbackCidr(tc.cidr)
			assert.NoError(t, err)
		})
	}
}

		// Abstract unix domain sockets, a Linux-ism.
		if address[0] == '@' && runtime.GOOS != "linux" {
			return false
		}
	}
	return true
}

// NewLocalListener returns a listener which listens to a loopback IP
// address or local file system path.
//
// The provided network must be "tcp", "tcp4", "tcp6", "unix" or
// "unixpacket".
func NewLocalListener(network string) (net.Listener, error) {
	stackOnce.Do(probeStack)

	pubsub   *pubsub.PubSub[log.Info, madmin.LogMask]
	console  *console.Target
	nodeName string
	logBuf   *ring.Ring
}

// NewConsoleLogger - creates new HTTPConsoleLoggerSys with all nodes subscribed to
// the console logging pub sub system
func NewConsoleLogger(ctx context.Context, w io.Writer) *HTTPConsoleLoggerSys {
	return &HTTPConsoleLoggerSys{
		pubsub:  pubsub.New[log.Info, madmin.LogMask](8),
		console: console.New(w),

		},
		{
			name:        "ipv4 loopback",
			cidrStrings: []string{"224.0.0.0/24", "192.168.0.0/16", "fd00:1:d::/64", "127.0.0.0/8"},
			want:        true,
		},
		{
			name:        "ipv6 loopback",
			cidrStrings: []string{"224.0.0.0/24", "192.168.0.0/16", "fd00:1:d::/64", "::1/128"},
			want:        false,
		},
		{
			name:        "ipv4 loopback smaller range",

	cidrStrings []string

	cidrs                []*net.IPNet
	containsIPv4Loopback bool
	matchAll             bool
}

// RFC 5735 127.0.0.0/8 - This block is assigned for use as the Internet host loopback address
var ipv4LoopbackStart = net.IPv4(127, 0, 0, 0)

// NewNodePortAddresses takes an IP family and the `--nodeport-addresses` value (which is

        ConnectException connEx = new ConnectException("Connection refused: connect");
        IOException ioEx = new IOException("Unable to establish loopback connection", connEx);
        MojoExecutionException mojoEx =
                new MojoExecutionException("Error executing Jetty: Unable to establish loopback connection", ioEx);

        ExceptionHandler exceptionHandler = new DefaultExceptionHandler();

2021-08-12T12:01:50.771+0200 [DEBUG] [org.gradle.internal.remote.internal.inet.InetAddresses] Is this a loopback interface? true
2021-08-12T12:01:50.771+0200 [DEBUG] [org.gradle.internal.remote.internal.inet.InetAddresses] Adding loopback address /0:0:0:0:0:0:0:1%lo
2021-08-12T12:01:50.771+0200 [DEBUG] [org.gradle.internal.remote.internal.inet.InetAddresses] Adding loopback address /127.0.0.1

	if progVers == "(devel)" { // avoid special characters in created file names
		progVers = "devel"
	}
	logBase := strings.ReplaceAll(
		fmt.Sprintf("%s-%s-%s-%4d%02d%02d-%d.log", prog, progVers, goVers, year, month, day, os.Getpid()),
		" ", "")
	fname := filepath.Join(debugDir, logBase)
	if _, err := os.Stat(fname); err == nil {
		// This process previously called upload.Run
		return nil, nil
	}

	t.Activate(fw.NewContext(htmlRouter, jsonRouter, tmpl))
}

// getLocalIP returns a non loopback local IP of the host
func getLocalIP() string {
	addrs, err := net.InterfaceAddrs()
	if err != nil {
		return ""
	}

	for _, address := range addrs {
		// check the address type and if it is not a loopback then return it
		if ipnet, ok := address.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
			if ipnet.IP.To4() != nil {

	ipp, err := netip.ParsePrefix(cidr)
	if err != nil {
		return fmt.Errorf("failed to parse CIDR %s: %v", cidr, err)
	}

	if !ipp.Addr().Is4() || !ipp.Addr().IsLoopback() {
		return fmt.Errorf("expected valid IPv4 loopback address in CIDR %s; found %v", cidr, ipp.Addr())
	}

	ones := ipp.Bits()
	if ones < 8 || ones > 32 {
		return fmt.Errorf("expected CIDR %s to have mask in range [8, 32]; found %v", cidr, ones)
	}
	return nil