Update to the latest golangci-lint

network/circuit_breaker.go

@@ -56,7 +56,7 @@ func (c *circuitBreakerDialer) doClosed(ctx context.Context,
 	select {
 	case <-ctx.Done():
 		if conn != nil {
-			conn.Close()
+			conn.Close() //nolint: errcheck
 		}
 
 		return nil, ctx.Err() //nolint: wrapcheck
@@ -93,7 +93,7 @@ func (c *circuitBreakerDialer) doHalfOpened(ctx context.Context,
 	select {
 	case <-ctx.Done():
 		if conn != nil {
-			conn.Close()
+			conn.Close() //nolint: errcheck
 		}
 
 		return nil, ctx.Err() //nolint: wrapcheck

network/default.go

@@ -31,7 +31,7 @@ func (d *defaultDialer) DialContext(ctx context.Context, network, address string
 
 	// we do not need to call to end user. End users call us.
 	if err := SetServerSocketOptions(conn, 0); err != nil {
-		conn.Close()
+		conn.Close() //nolint: errcheck
 
 		return nil, fmt.Errorf("cannot set socket options: %w", err)
 	}

network/default_test.go

@@ -51,7 +51,7 @@ func (suite *DefaultDialerTestSuite) TestConnectOk() {
 	suite.NoError(err)
 	suite.NotNil(conn)
 
-	conn.Close()
+	conn.Close() //nolint: errcheck
 }
 
 func (suite *DefaultDialerTestSuite) TestHTTPRequest() {
@@ -59,7 +59,7 @@ func (suite *DefaultDialerTestSuite) TestHTTPRequest() {
 
 	resp, err := httpClient.Get(suite.MakeURL("/get")) //nolint: noctx
 	if err == nil {
-		defer resp.Body.Close()
+		defer resp.Body.Close() //nolint: errcheck
 	}
 
 	suite.NoError(err)

network/init_test.go

@@ -78,7 +78,7 @@ func (suite *Socks5ServerTestSuite) SetupSuite() {
 }
 
 func (suite *Socks5ServerTestSuite) TearDownSuite() {
-	suite.socks5Listener.Close()
+	suite.socks5Listener.Close() //nolint: errcheck
 }
 
 func (suite *Socks5ServerTestSuite) MakeSocks5URL(user, password string) *url.URL {

network/load_balanced_socks5_test.go

@@ -75,7 +75,7 @@ func (suite *LoadBalancedSocks5TestSuite) TestCannotDial() {
 func (suite *LoadBalancedSocks5TestSuite) TestDialOk() {
 	resp, err := suite.httpClient.Get(suite.MakeURL("/get")) //nolint: noctx
 	if err == nil {
-		defer resp.Body.Close()
+		defer resp.Body.Close() //nolint: errcheck
 	}
 
 	suite.NoError(err)

network/network_test.go

@@ -34,7 +34,7 @@ func (suite *NetworkTestSuite) TestLocalHTTPRequest() {
 	resp, err := client.Get(suite.httpServer.URL + "/headers") //nolint: noctx
 	suite.NoError(err)
 
-	defer resp.Body.Close()
+	defer resp.Body.Close() //nolint: errcheck
 
 	data, err := io.ReadAll(resp.Body)
 	suite.NoError(err)
@@ -59,7 +59,7 @@ func (suite *NetworkTestSuite) TestRealHTTPRequest() {
 	resp, err := client.Get("https://httpbin.org/headers") //nolint: noctx
 	suite.NoError(err)
 
-	defer resp.Body.Close()
+	defer resp.Body.Close() //nolint: errcheck
 
 	data, err := io.ReadAll(resp.Body)
 	suite.NoError(err)

network/proxy_dialer.go

@@ -16,7 +16,7 @@ func newProxyDialer(baseDialer Dialer, proxyURL *url.URL) Dialer {
 	)
 
 	if param := params.Get("open_threshold"); param != "" {
-		if intNum, err := strconv.ParseUint(param, 10, 32); err == nil { //nolint: gomnd
+		if intNum, err := strconv.ParseUint(param, 10, 32); err == nil {
 			openThreshold = uint32(intNum)
 		}
 	}

network/sockopts_unix.go

@@ -14,14 +14,14 @@ func setSocketReuseAddrPort(conn syscall.RawConn) error {
 	var err error
 
 	conn.Control(func(fd uintptr) { //nolint: errcheck
-		err = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEADDR, 1) //nolint: nosnakecase
+		err = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEADDR, 1)
 		if err != nil {
 			err = fmt.Errorf("cannot set SO_REUSEADDR: %w", err)
 
 			return
 		}
 
-		err = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1) //nolint: nosnakecase
+		err = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1)
 		if err != nil {
 			err = fmt.Errorf("cannot set SO_REUSEPORT: %w", err)
 		}

network/socks5.go

@@ -36,13 +36,13 @@ func (s socks5Dialer) DialContext(ctx context.Context, network, address string)
 	}
 
 	if err := s.handshake(conn); err != nil {
-		conn.Close()
+		conn.Close() //nolint: errcheck
 
 		return nil, fmt.Errorf("cannot perform a handshake: %w", err)
 	}
 
 	if err := s.connect(conn, address); err != nil {
-		conn.Close()
+		conn.Close() //nolint: errcheck
 
 		return nil, fmt.Errorf("cannot connect to a destination host %s: %w", address, err)
 	}

network/socks5_test.go

@@ -35,7 +35,7 @@ func (suite *Socks5TestSuite) TestRequestFailed() {
 
 	resp, err := httpClient.Get(suite.MakeURL("/get")) //nolint: noctx
 	if err == nil {
-		defer resp.Body.Close()
+		defer resp.Body.Close() //nolint: errcheck
 	}
 
 	suite.Error(err)
@@ -48,7 +48,7 @@ func (suite *Socks5TestSuite) TestRequestOk() {
 
 	resp, err := httpClient.Get(suite.MakeURL("/get")) //nolint: noctx
 	if err == nil {
-		defer resp.Body.Close()
+		defer resp.Body.Close() //nolint: errcheck
 	}
 
 	suite.NoError(err)