}
			a, err := ResolveIPAddr("ip", args[1])
			if err != nil {
				t.Errorf("ResolveIPAddr(\"ip\", %q) = %v", args[1], err)
				continue
			}
			_, err = DialIP(args[0], nil, a)
			if tt.shouldFail != (err != nil) {
				t.Errorf("DialIP(%q, %v) = %v; want (err != nil) is %t", args[0], a, err, tt.shouldFail)
			}
			_, err = ListenIP(args[0], a)
			if tt.shouldFail != (err != nil) {

}

func newIPConn(fd *netFD) *IPConn { return &IPConn{conn{fd}} }

// DialIP acts like [Dial] for IP networks.
//
// The network must be an IP network name; see func Dial for details.
//
// If laddr is nil, a local address is automatically chosen.
// If the IP field of raddr is nil or an unspecified IP address, the
// local system is assumed.
func DialIP(network string, laddr, raddr *IPAddr) (*IPConn, error) {
	if raddr == nil {

	return 0, syscall.EPLAN9
}

func (c *IPConn) writeMsg(b, oob []byte, addr *IPAddr) (n, oobn int, err error) {
	return 0, 0, syscall.EPLAN9
}

func (sd *sysDialer) dialIP(ctx context.Context, laddr, raddr *IPAddr) (*IPConn, error) {
	return nil, syscall.EPLAN9
}

func (sl *sysListener) listenIP(ctx context.Context, laddr *IPAddr) (*IPConn, error) {
	return nil, syscall.EPLAN9

}

func (sd *sysDialer) dialIP(ctx context.Context, laddr, raddr *IPAddr) (*IPConn, error) {
	network, proto, err := parseNetwork(ctx, sd.network, true)
	if err != nil {
		return nil, err
	}
	switch network {
	case "ip", "ip4", "ip6":
	default:
		return nil, UnknownNetworkError(sd.network)
	}
	ctrlCtxFn := sd.Dialer.ControlContext
	if ctrlCtxFn == nil && sd.Dialer.Control != nil {

// When using TCP, and the host resolves to multiple IP addresses,
// Dial will try each IP address in order until one succeeds.
//
// Examples:
//
//	Dial("tcp", "golang.org:http")
//	Dial("tcp", "192.0.2.1:http")
//	Dial("tcp", "198.51.100.1:80")
//	Dial("udp", "[2001:db8::1]:domain")
//	Dial("udp", "[fe80::1%lo0]:53")
//	Dial("tcp", ":80")
//
// For IP networks, the network must be "ip", "ip4" or "ip6" followed

		return nil, &DNSError{Err: "dial error test", Name: "name", Server: "server", IsTimeout: true}
	}
	sw.Set(socktest.FilterConnect, func(so *socktest.Status) (socktest.AfterFilter, error) {
		return nil, errOpNotSupported
	})
	defer sw.Set(socktest.FilterConnect, nil)

	d := Dialer{Timeout: someTimeout}
	for i, tt := range dialErrorTests {
		i, tt := i, tt

		return client.Do(req)
	}
	// DefaultTCPDialFunc just calls dialer.Dial, with no alterations to the arguments.
	DefaultTCPDialFunc = func(dialer net.Dialer, ctx context.Context, address string) (net.Conn, error) {
		return dialer.DialContext(ctx, "tcp", address)
	}
	// DefaultDialer is provides defaults for all dial functions.
	DefaultDialer = Dialer{
		GRPC:      DefaultGRPCDialFunc,
		Websocket: DefaultWebsocketDialFunc,

	return nil
}

// TLSDialWithDialer is an implementation of tls.DialWithDialer that accepts a generic Dialer
func TLSDialWithDialer(dialer Dialer, network, addr string, config *tls.Config) (*tls.Conn, error) {
	return tlsDial(context.Background(), dialer, network, addr, config)
}

func tlsDial(ctx context.Context, netDialer Dialer, network, addr string, config *tls.Config) (*tls.Conn, error) {

	dialAddr := netutil.CanonicalAddr(url)

	dialer, err := utilnet.DialerFor(transport)
	if err != nil {
		klog.V(5).Infof("Unable to unwrap transport %T to get dialer: %v", transport, err)
	}

	switch url.Scheme {
	case "http":
		if dialer != nil {
			return dialer(ctx, "tcp", dialAddr)
		}
		var d net.Dialer
		return d.DialContext(ctx, "tcp", dialAddr)
	case "https":

	}

	return tlsConn, nil
}

// dialWithoutProxy dials the host specified by url, using TLS if appropriate.
func (s *SpdyRoundTripper) dialWithoutProxy(ctx context.Context, url *url.URL) (net.Conn, error) {
	dialAddr := netutil.CanonicalAddr(url)
	dialer := s.Dialer
	if dialer == nil {
		dialer = &net.Dialer{}
	}

	if url.Scheme == "http" {
		return dialer.DialContext(ctx, "tcp", dialAddr)
	}