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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_NSOCKADDR_H
+#define PSOCKSXX_NSOCKADDR_H
+
+#include <psocksxx/sockaddr.h>
+#include <psocksxx/sockexception.h>
+#include <netinet/in.h>
+
+
+namespace psocksxx {
+
+ /**
+ * @brief Socket address class for IPv4 addresses
+ *
+ * This class holds the socket addressing structure for IPv4
+ * socket communications.
+ *
+ */
+ class nsockaddr : public sockaddr, public sockaddr_in {
+ public:
+
+ /**
+ * @brief constructor
+ * @param node node (host name or IP)
+ * @param port port number
+ * @throw psocksxx::sockexception socket exception
+ *
+ * Create a IPv4 socket address instance with the give node
+ * and port information.
+ *
+ */
+ nsockaddr( const char * node, unsigned short port ) throw( sockexception );
+
+ /**
+ * @brief constructor
+ * @param port port number
+ *
+ * Create a IPv4 socket address instance with the given port
+ * and the node (host/IP) will be any available interface on
+ * the host computer.
+ *
+ */
+ nsockaddr( unsigned short port ) throw();
+
+ /**
+ * @brief constructor
+ * @param node node (host name or IP)
+ * @param service port number of the service name (e.g. "http")
+ * @throw psocksxx::sockexception socket exception
+ *
+ * Create a IPv4 socket address instance with the give node
+ * and service information.
+ *
+ */
+ nsockaddr( const char * node, const char * service ) throw( sockexception );
+
+ // abstract method implementations
+ socklen_t size() const throw();
+ ::sockaddr* psockaddr() const throw();
+
+
+ protected:
+
+ /**
+ * @brief convert a node name to a IPv4 address
+ * @param node node (host name or IP)
+ * @throw psocksxx::sockexception socket exception
+ * @return IPv4 address in network byte order
+ *
+ * Helper function to convert a node name into a IPv4 network
+ * address.
+ *
+ */
+ in_addr_t resolve_node( const char * node ) throw( sockexception );
+
+ };
+
+} /* end of namespace psockxx */
+
+#endif /* !PSOCKSXX_NSOCKADDR_H */
+