/** * Get the network prefix length for IPV4 address * 24=C, 16=B, 8=A classes. * Returns -1 in case of V6 address. * @param iadr The address. * @return The length of the prefix. */ public static short getNetworkPrefixLength(InetAddress iadr) { short ret = -1; if(!SReflect.isAndroid() || androidUtils().getAndroidVersion() > 8) { ret = SNonAndroid.getNetworkPrefixLength(iadr); } return ret; }