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diff --git a/lib/psocksxx/sockexception.h b/lib/psocksxx/sockexception.h
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+/*
+*  psocksxx - A C++ wrapper for POSIX sockets
+*  Copyright (C) 2013 Uditha Atukorala
+*
+*  This software library 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
+*  (at your option) any later version.
+*
+*  This software library 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 Lesser General Public License for more details.
+*
+*  You should have received a copy of the GNU Lesser General Public License
+*  along with this software library. If not, see <http://www.gnu.org/licenses/>.
+*
+*/
+
+#ifndef PSOCKSXX_SOCKEXCEPTION_H
+#define PSOCKSXX_SOCKEXCEPTION_H
+
+#include <exception>
+#include <cstddef>
+#include <string>
+
+
+namespace psocksxx {
+
+	/**
+	*   @brief Socket exception
+	*
+	*   This is the base class for all socket exceptions.
+	*/
+	class sockexception : public std::exception {
+	public:
+		/**
+		*   @brief constructor
+		*
+		*   Create an instance with the passed in error message.
+		*   If a message is not passed in or is equal to @c 0 then
+		*   the system error message is used.
+		*
+		*   @param message (optional) user error message
+		*/
+		sockexception( const char * message = 0 ) throw();
+
+		virtual ~sockexception() throw();   //!< destructor
+
+		/**
+		*   @brief Returns exception message
+		*
+		*   Returns a C-Style character string describing the
+		*   exception.
+		*
+		*   @return exception message
+		*   @sa sockexception() constructor
+		*/
+		const char * what() const throw();
+
+	protected:
+		/** user exception message */
+		std::string _message;
+
+		/** system error number */
+		int _errno;
+
+		/** system error message */
+		std::string _sys_msg;
+
+	};
+
+} /* end of namespace psocksxx */
+
+#endif /* !PSOCKSXX_SOCKEXCEPTION_H */
+