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+/****************************************************************************
+ * net/uip/uip_pktsend.c
+ *
+ * Copyright (C) 2014 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 <string.h>
+#include <assert.h>
+#include <debug.h>
+
+#include <nuttx/net/uip/uip.h>
+#include <nuttx/net/uip/uip-arch.h>
+
+#ifdef CONFIG_NET_PKT
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Type Declarations
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Constant Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Constant Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Variables
+ ****************************************************************************/
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: uip_pktsend
+ *
+ * Description:
+ * Called from socket logic in order to send a raw packet in response to
+ * an xmit or poll request from the the network interface driver.
+ *
+ * This is almost identical to calling uip_send() except that the data to
+ * be sent is copied into dev->d_buf (vs. dev->d_snddata), since there is
+ * no header on the data.
+ *
+ * Assumptions:
+ * Called from the interrupt level or, at a minimum, with interrupts
+ * disabled.
+ *
+ ****************************************************************************/
+
+void uip_pktsend(FAR struct uip_driver_s *dev, FAR const void *buf,
+ unsigned int len)
+{
+ DEBUGASSERT(dev && len > 0 && len < CONFIG_NET_BUFSIZE);
+
+ /* Copy the data into the device packet buffer */
+
+ memcpy(dev->d_buf, buf, len);
+
+ /* Set the number of bytes to send */
+
+ dev->d_len = len;
+ dev->d_sndlen = len;
+}
+
+#endif /* CONFIG_NET_PKT */