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/*
* Copyright (c) 2001-2003 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#include "udpecho.h"
#include "lwip/opt.h"
#if LWIP_NETCONN
#include "lwip/api.h"
#include "lwip/sys.h"
/*-----------------------------------------------------------------------------------*/
static void
udpecho_thread(void *arg)
{
struct netconn *conn;
struct netbuf *buf;
char buffer[4096];
err_t err;
LWIP_UNUSED_ARG(arg);
#if LWIP_IPV6
conn = netconn_new(NETCONN_UDP_IPV6);
LWIP_ERROR("udpecho: invalid conn", (conn != NULL), return;);
netconn_bind(conn, IP6_ADDR_ANY, 7);
#else /* LWIP_IPV6 */
conn = netconn_new(NETCONN_UDP);
LWIP_ERROR("udpecho: invalid conn", (conn != NULL), return;);
netconn_bind(conn, IP_ADDR_ANY, 7);
#endif /* LWIP_IPV6 */
while (1) {
err = netconn_recv(conn, &buf);
if (err == ERR_OK) {
/* no need netconn_connect here, since the netbuf contains the address */
if(netbuf_copy(buf, buffer, sizeof(buffer)) != buf->p->tot_len) {
LWIP_DEBUGF(LWIP_DBG_ON, ("netbuf_copy failed\n"));
} else {
buffer[buf->p->tot_len] = '\0';
err = netconn_send(conn, buf);
if(err != ERR_OK) {
LWIP_DEBUGF(LWIP_DBG_ON, ("netconn_send failed: %d\n", (int)err));
} else {
LWIP_DEBUGF(LWIP_DBG_ON, ("got %s\n", buffer));
}
}
netbuf_delete(buf);
}
}
}
/*-----------------------------------------------------------------------------------*/
void
udpecho_init(void)
{
sys_thread_new("udpecho_thread", udpecho_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
}
#endif /* LWIP_NETCONN */
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