mirror of
https://github.com/lwip-tcpip/lwip.git
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66 lines
2.4 KiB
C
66 lines
2.4 KiB
C
/*
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* Copyright (c) 2001, 2002 Swedish Institute of Computer Science.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Adam Dunkels <adam@sics.se>
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*
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*/
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#include "lwip/api.h"
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#include "lwip/sys.h"
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/*-----------------------------------------------------------------------------------*/
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void
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udpecho_thread(void *arg)
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{
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static struct netconn *conn;
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static struct netbuf *buf;
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static struct ip_addr *addr;
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static unsigned short port;
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char buffer[4096];
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conn = netconn_new(NETCONN_UDP);
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netconn_bind(conn, NULL, 7);
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while(1) {
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buf = netconn_recv(conn);
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addr = netbuf_fromaddr(buf);
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port = netbuf_fromport(buf);
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netconn_connect(conn, addr, port);
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netconn_send(conn, buf);
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netbuf_copy(buf, buffer, sizeof(buffer));
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printf("got %s\n", buffer);
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netbuf_delete(buf);
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}
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}
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/*-----------------------------------------------------------------------------------*/
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void
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udpecho_init(void)
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{
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sys_thread_new(udpecho_thread, NULL);
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}
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