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+/****************************************************************************
+ * net/net_addroute.c
+ *
+ * Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <errno.h>
+
+#include <nuttx/net/route.h>
+
+#include "net_internal.h"
+
+#if defined(CONFIG_NET) && defined(CONFIG_NET_ROUTE)
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: net_available
+ *
+ * Description:
+ * Return 1 if the route is available
+ *
+ * Parameters:
+ * route - The next route to examine
+ * arg - The new route entry (cast to void*)
+ *
+ * Returned Value:
+ * OK on success; Negated errno on failure.
+ *
+ ****************************************************************************/
+
+static int net_available(FAR struct net_route_s *route, FAR void *arg)
+{
+ if (!route->inuse)
+ {
+ memcpy(route, arg, sizeof(struct net_route_s));
+ return 1;
+ }
+
+ return 0;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: net_addroute
+ *
+ * Description:
+ * Add a new route to the routing table
+ *
+ * Parameters:
+ *
+ * Returned Value:
+ * OK on success; Negated errno on failure.
+ *
+ ****************************************************************************/
+
+int net_addroute(uip_ipaddr_t target, uip_ipaddr_t netmask,
+ uip_ipaddr_t gateway, int devno)
+{
+ struct net_route_s route;
+
+ /* Format the new route table entry */
+
+ route.inuse = true;
+ route.minor = devno;
+ uip_ipaddr_copy(route.target, target);
+ uip_ipaddr_copy(route.netmask, netmask);
+ uip_ipaddr_copy(route.gateway, gateway);
+
+ /* Then add the new entry to the table */
+
+ return net_foreachroute(net_available, &route) ? OK : -EAGAIN;
+}
+
+#endif /* CONFIG_NET && CONFIG_NET_SOCKOPTS && !CONFIG_DISABLE_CLOCK */