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diff --git a/libnitrokey-v3.3/libnitrokey/DeviceCommunicationExceptions.h b/libnitrokey-v3.3/libnitrokey/DeviceCommunicationExceptions.h
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+/*
+ * Copyright (c) 2015-2018 Nitrokey UG
+ *
+ * This file is part of libnitrokey.
+ *
+ * libnitrokey is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
+ *
+ * libnitrokey is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with libnitrokey. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: LGPL-3.0
+ */
+
+
+#ifndef LIBNITROKEY_DEVICECOMMUNICATIONEXCEPTIONS_H
+#define LIBNITROKEY_DEVICECOMMUNICATIONEXCEPTIONS_H
+
+#include <atomic>
+#include <exception>
+#include <stdexcept>
+#include <string>
+
+
+class DeviceCommunicationException: public std::runtime_error
+{
+  std::string message;
+  static std::atomic_int occurred;
+public:
+  DeviceCommunicationException(std::string _msg): std::runtime_error(_msg), message(_msg){
+    ++occurred;
+  }
+  uint8_t getType() const {return 1;};
+//  virtual const char* what() const throw() override {
+//    return message.c_str();
+//  }
+  static bool has_occurred(){ return occurred > 0; };
+  static void reset_occurred_flag(){ occurred = 0; };
+};
+
+class DeviceNotConnected: public DeviceCommunicationException {
+public:
+  DeviceNotConnected(std::string msg) : DeviceCommunicationException(msg){}
+  uint8_t getType() const {return 2;};
+};
+
+class DeviceSendingFailure: public DeviceCommunicationException {
+public:
+  DeviceSendingFailure(std::string msg) : DeviceCommunicationException(msg){}
+  uint8_t getType() const {return 3;};
+};
+
+class DeviceReceivingFailure: public DeviceCommunicationException {
+public:
+  DeviceReceivingFailure(std::string msg) : DeviceCommunicationException(msg){}
+  uint8_t getType() const {return 4;};
+};
+
+class InvalidCRCReceived: public DeviceReceivingFailure {
+public:
+  InvalidCRCReceived(std::string msg) : DeviceReceivingFailure(msg){}
+  uint8_t getType() const {return 5;};
+};
+
+
+#endif //LIBNITROKEY_DEVICECOMMUNICATIONEXCEPTIONS_H