@@ -282,13 +282,12 @@ func (cli *Client) HTTPClient() *http.Client {

 // ParseHostURL parses a url string, validates the string is a host url, and

 // returns the parsed URL

 func ParseHostURL(host string) (*url.URL, error) {

-	protoAddrParts := strings.SplitN(host, "://", 2)

-	if len(protoAddrParts) == 1 {

+	proto, addr, ok := strings.Cut(host, "://")

+	if !ok || addr == "" {

 		return nil, errors.Errorf("unable to parse docker host `%s`", host)

 	}

 	var basePath string

-	proto, addr := protoAddrParts[0], protoAddrParts[1]

 	if proto == "tcp" {

 		parsed, err := url.Parse("tcp://" + addr)

 		if err != nil {

@@ -64,10 +64,10 @@ func parsePingResponse(cli *Client, resp serverResponse) (types.Ping, error) {

 		ping.BuilderVersion = types.BuilderVersion(bv)

 	}

 	if si := resp.header.Get("Swarm"); si != "" {

-		parts := strings.SplitN(si, "/", 2)

+		state, role, _ := strings.Cut(si, "/")

 		ping.SwarmStatus = &swarm.Status{

-			NodeState:        swarm.LocalNodeState(parts[0]),

-			ControlAvailable: len(parts) == 2 && parts[1] == "manager",

+			NodeState:        swarm.LocalNodeState(state),

+			ControlAvailable: role == "manager",

 		}

 	}

 	err := cli.checkResponseErr(resp)