Disable server name identification when using IPAddress objects

Author: aentinger

Diff for: src/ArduinoIoTCloudTCP.cpp

@@ -117,7 +117,8 @@ int ArduinoIoTCloudTCP::begin(ConnectionHandler & connection, uint16_t brokerPor
   if (!CryptoUtil::readDeviceId(ECCX08, getDeviceId(), ECCX08Slot::DeviceId))                                                                                                  { Debug.print(DBG_ERROR, "Cryptography processor read failure."); return 0; }
   if (!CryptoUtil::reconstructCertificate(_eccx08_cert, getDeviceId(), ECCX08Slot::Key, ECCX08Slot::CompressedCertificate, ECCX08Slot::SerialNumberAndAuthorityKeyIdentifier)) { Debug.print(DBG_ERROR, "Cryptography certificate reconstruction failure."); return 0; }
   ArduinoBearSSL.onGetTime(getTime);
-  _sslClient = new BearSSLClient(_connection->getClient(), ArduinoIoTCloudTrustAnchor, ArduinoIoTCloudTrustAnchor_NUM);
+  bool const noSNI = (_brokerIp != INADDR_NONE); /* Disable server name identification when using IPAddress objects */
+  _sslClient = new BearSSLClient(_connection->getClient(), ArduinoIoTCloudTrustAnchor, ArduinoIoTCloudTrustAnchor_NUM, noSNI);
   _sslClient->setEccSlot(static_cast<int>(ECCX08Slot::Key), _eccx08_cert.bytes(), _eccx08_cert.length());
   #elif defined(BOARD_ESP)
   _sslClient = new WiFiClientSecure();