mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-23 01:29:33 +00:00
96 lines
3.1 KiB
C
96 lines
3.1 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 1.7 2009/10/18 22:02:01 adamdunkels Exp $
|
|
*/
|
|
|
|
/**
|
|
* \file
|
|
* Module for sending UDP packets through uIP.
|
|
* \author
|
|
* Adam Dunkels <adam@sics.se>
|
|
*/
|
|
|
|
#include "contiki-conf.h"
|
|
|
|
extern u16_t uip_slen;
|
|
|
|
#include "net/uip-udp-packet.h"
|
|
|
|
#include <string.h>
|
|
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
uip_udp_packet_send(struct uip_udp_conn *c, const void *data, int len)
|
|
{
|
|
#if UIP_UDP
|
|
if(data != NULL) {
|
|
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_CONF_IPV6
|
|
tcpip_ipv6_output();
|
|
#else
|
|
if(uip_len > 0) {
|
|
tcpip_output();
|
|
}
|
|
#endif
|
|
}
|
|
uip_slen = 0;
|
|
#endif /* UIP_UDP */
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|
|
void
|
|
uip_udp_packet_sendto(struct uip_udp_conn *c, const void *data, int len,
|
|
const uip_ipaddr_t *toaddr, uint16_t toport)
|
|
{
|
|
uip_ipaddr_t curaddr;
|
|
uint16_t curport;
|
|
|
|
if(toaddr != NULL) {
|
|
/* Save current IP addr/port. */
|
|
uip_ipaddr_copy(&curaddr, &c->ripaddr);
|
|
curport = c->rport;
|
|
|
|
/* Load new IP addr/port */
|
|
uip_ipaddr_copy(&c->ripaddr, toaddr);
|
|
c->rport = toport;
|
|
|
|
uip_udp_packet_send(c, data, len);
|
|
|
|
/* Restore old IP addr/port */
|
|
uip_ipaddr_copy(&c->ripaddr, &curaddr);
|
|
c->rport = curport;
|
|
}
|
|
}
|
|
/*---------------------------------------------------------------------------*/
|