mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-08-31 11:29:33 +00:00
typedef union uip_ip4addr_t { u16_t u16[2]; u8_t u8[4]; } uip_ip4addr_t; typedef uip_ip4addr_t uip_ipaddr_t; This implies that one must consistently pass pointers to uip_ipaddr_t:s and not mix and match pointers with uip_ipaddr_t:s as was done earlier.
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/*
|
|
* Copyright (c) 2005, 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: udprecv.c,v 1.2 2006/08/09 16:13:40 bg- Exp $
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "contiki.h"
|
|
#include "net/uip.h"
|
|
|
|
PROCESS(udprecv_process, "UDP recv process");
|
|
|
|
PROCESS_THREAD(udprecv_process, ev, data)
|
|
{
|
|
static struct uip_udp_conn *c;
|
|
|
|
PROCESS_EXITHANDLER(goto exit);
|
|
PROCESS_BEGIN();
|
|
|
|
printf("udprecv_process starting\n");
|
|
|
|
{
|
|
uip_ipaddr_t any;
|
|
uip_ipaddr(&any, 0,0,0,0);
|
|
c = udp_new(&any, HTONS(0), NULL);
|
|
uip_udp_bind(c, HTONS(4321));
|
|
}
|
|
|
|
while(1) {
|
|
PROCESS_YIELD();
|
|
|
|
if(ev == tcpip_event && uip_newdata()) {
|
|
u8_t *src = ((struct uip_udpip_hdr *)uip_buf)->srcipaddr.u8;
|
|
printf("%d.%d.%d.%d: %s\n",
|
|
src[0], src[1], src[2], src[3], (char *)uip_appdata);
|
|
}
|
|
}
|
|
|
|
exit:
|
|
/* Contiki does automatic garbage collection of uIP state and we
|
|
* need not worry about that. */
|
|
printf("udprecv_process exiting\n");
|
|
PROCESS_END();
|
|
}
|
|
|
|
/*
|
|
* Initialize this kernel module.
|
|
*/
|
|
void
|
|
_init(void)
|
|
{
|
|
process_start(&udprecv_process, NULL);
|
|
}
|
|
|
|
/*
|
|
* When this module is unloaded we must clean up!
|
|
*/
|
|
void
|
|
_fini(void)
|
|
{
|
|
process_exit(&udprecv_process);
|
|
}
|