Method getProtocolName

app/src/main/java/eu/faircode/netguard/Util.java:561–595

(int protocol, int version, boolean brief)

    }

    public static String getProtocolName(int protocol, int version, boolean brief) {
        // https://en.wikipedia.org/wiki/List_of_IP_protocol_numbers
        String p = null;
        String b = null;
        switch (protocol) {
            case 0:
                p = "HOPO";
                b = "H";
                break;
            case 2:
                p = "IGMP";
                b = "G";
                break;
            case 1:
            case 58:
                p = "ICMP";
                b = "I";
                break;
            case 6:
                p = "TCP";
                b = "T";
                break;
            case 17:
                p = "UDP";
                b = "U";
                break;
            case 50:
                p = "ESP";
                b = "E";
                break;
        }
        if (p == null)
            return Integer.toString(protocol) + "/" + version;
        return ((brief ? b : p) + (version > 0 ? version : ""));
    }

    public interface DoubtListener {
        void onSure();