remove client network

client.go

@@ -12,17 +12,14 @@ type Dialer interface {
 
 // Client is an UDP client that supports DNS protocol.
 type Client struct {
-	// AddrPort specifies the network of dns connection.
-	Network string
-
 	// Address specifies the address of dns server.
 	Addr string
 
 	// Timeout
 	Timeout time.Duration
 
 	// Dialer specifies the dialer for creating TCP/UDP connections.
-	// If it is set, Network, AddrPort and Timeout will be ignored.
+	// If it is set, Addr and Timeout will be ignored.
 	Dialer Dialer
 }
 
@@ -42,7 +39,7 @@ func (c *Client) exchange(ctx context.Context, req, resp *Message) error {
 		dialer = &net.Dialer{Timeout: c.Timeout}
 	}
 
-	conn, err := dialer.DialContext(ctx, c.Network, c.Addr)
+	conn, err := dialer.DialContext(ctx, "udp", c.Addr)
 	if err != nil {
 		return err
 	}

client_test.go

@@ -18,7 +18,6 @@ func TestClientExchange(t *testing.T) {
 	}
 
 	client := &Client{
-		Network: "udp",
 		Addr:    "1.1.1.1:53",
 		Timeout: 1 * time.Second,
 	}
@@ -51,7 +50,6 @@ func TestLookupCNAME(t *testing.T) {
 	host := "abc.phus.lu"
 
 	client := &Client{
-		Network: "udp",
 		Addr:    "1.1.1.1:53",
 		Timeout: 1 * time.Second,
 		Dialer: &HTTPDialer{
@@ -69,7 +67,6 @@ func TestLookupTXT(t *testing.T) {
 	host := "phus.lu"
 
 	client := &Client{
-		Network: "udp",
 		Addr:    "1.1.1.1:53",
 		Timeout: 1 * time.Second,
 		Dialer: &HTTPDialer{
@@ -87,7 +84,6 @@ func TestLookupNetIP(t *testing.T) {
 	host := "cloud.phus.lu"
 
 	client := &Client{
-		Network: "udp",
 		Addr:    "1.1.1.1:53",
 		Timeout: 1 * time.Second,
 		Dialer: &HTTPDialer{
@@ -105,7 +101,6 @@ func TestLookupHTTPS(t *testing.T) {
 	host := "cloud.phus.lu"
 
 	client := &Client{
-		Network: "udp",
 		Addr:    "1.1.1.1:53",
 		Timeout: 1 * time.Second,
 	}

cmd/fastdig/fastdig.go

@@ -19,8 +19,7 @@ func main() {
 	domain, qtype, server, options := parse(os.Args[1:])
 
 	client := &fastdns.Client{
-		Network: "udp",
-		Addr:    net.JoinHostPort(server, "53"),
+		Addr: net.JoinHostPort(server, "53"),
 	}
 	if strings.HasPrefix(server, "https://") {
 		endpoint, err := url.Parse(server)

cmd/fastdoh/main.go

@@ -61,7 +61,6 @@ func main() {
 		DNSQuery: "/dns-query",
 		DNSHandler: &DNSHandler{
 			DNSClient: &fastdns.Client{
-				Network: "udp",
 				Addr:    "1.1.1.1:53",
 				Timeout: 3 * time.Second,
 			},