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diff --git a/src/anytunError.hpp b/src/anytunError.hpp
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+++ b/src/anytunError.hpp
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+/*
+ *  anytun
+ *
+ *  The secure anycast tunneling protocol (satp) defines a protocol used
+ *  for communication between any combination of unicast and anycast
+ *  tunnel endpoints.  It has less protocol overhead than IPSec in Tunnel
+ *  mode and allows tunneling of every ETHER TYPE protocol (e.g.
+ *  ethernet, ip, arp ...). satp directly includes cryptography and
+ *  message authentication based on the methodes used by SRTP.  It is
+ *  intended to deliver a generic, scaleable and secure solution for
+ *  tunneling and relaying of packets of any protocol.
+ *
+ *
+ *  Copyright (C) 2007-2008 Othmar Gsenger, Erwin Nindl, 
+ *                          Christian Pointner <satp@wirdorange.org>
+ *
+ *  This file is part of Anytun.
+ *
+ *  Anytun is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 3 as
+ *  published by the Free Software Foundation.
+ *
+ *  Anytun 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 General Public License
+ *  along with anytun.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _ANYTUN_ERROR_HPP
+#define _ANYTUN_ERROR_HPP
+
+#include <sstream>
+
+class ErrorStringBuilder 
+{
+public:
+  ErrorStringBuilder(ErrorStringBuilder const& src) { stream << src.stream.str(); };
+  ErrorStringBuilder() {};
+  ~ErrorStringBuilder() { throw std::runtime_error(stream.str()); };
+
+  template<class T>
+  std::ostream& operator<<(T const& value) { return stream << value; }
+
+private:
+  std::stringstream stream;
+};
+
+class AnytunError
+{
+public:
+  static ErrorStringBuilder throwErr() { return ErrorStringBuilder(); }
+};
+
+#endif