WiFiC3- dnsIP(n) getter added

Author: JAndrassy

libraries/WiFi/src/WiFi.cpp

@@ -222,6 +222,11 @@ IPAddress CWifi::gatewayIP() {
    return IPAddress((uint32_t)0);
 }
 
+/* -------------------------------------------------------------------------- */
+IPAddress CWifi::dnsIP(int n) {
+   return CLwipIf::getInstance().getDns(n);
+}
+
 /* -------------------------------------------------------------------------- */
 const char* CWifi::SSID(uint8_t networkItem) {  
    return CLwipIf::getInstance().getSSID(networkItem);

libraries/WiFi/src/WiFiC3.h

@@ -136,6 +136,13 @@ class CWifi {
      */
    IPAddress gatewayIP();
 
+   /*
+    * Get the DNS server IP address.
+    *
+    * return: DNS server IP address value
+    */
+   IPAddress dnsIP(int n = 0);
+
     /*
      * Return the current SSID associated with the network
      *