SocketImpl: fd()

Author: pschatzmann

ArduinoCore-Linux/cores/arduino/Ethernet.h

@@ -194,6 +194,8 @@ class EthernetClient : public Client {
 
   void setInsecure() {}
 
+  int fd() { return sock.fd(); }
+
  protected:
   const char* WIFICLIENT = "EthernetClient";
   SocketImpl sock;

ArduinoCore-Linux/cores/arduino/SocketImpl.h

@@ -35,6 +35,8 @@ class SocketImpl {
   // determines the IP Adress
   const char* getIPAddress(const char* validEntries[]);
 
+  int fd() { return sock; }
+
  protected:
   bool is_connected = false;
   int sock = -1, valread;