contiki/core/net/uip-udp-packet.c

63 lines
2.4 KiB
C

/*
* Copyright (c) 2006, Swedish Institute of Computer Science.
* All rights reserved.
*
* 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 of the Institute 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 INSTITUTE 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 INSTITUTE 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.
*
* This file is part of the Contiki operating system.
*
* $Id: uip-udp-packet.c,v 1.4 2007/09/29 03:54:18 matsutsuka Exp $
*/
/**
* \file
* Module for sending UDP packets through uIP.
* \author
* Adam Dunkels <adam@sics.se>
*/
#if UIP_UDP
#include "net/uip-udp-packet.h"
#include <string.h>
extern u16_t uip_slen;
/*---------------------------------------------------------------------------*/
void
uip_udp_packet_send(struct uip_udp_conn *c, const void *data, int len)
{
uip_udp_conn = c;
uip_slen = len;
memcpy(&uip_buf[UIP_LLH_LEN + UIP_IPUDPH_LEN], data, len > UIP_BUFSIZE? UIP_BUFSIZE: len);
uip_process(UIP_UDP_SEND_CONN);
if(uip_len > 0) {
tcpip_output();
}
uip_slen = 0;
}
/*---------------------------------------------------------------------------*/
#endif /* UIP_UDP */