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/* |
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* Copyright (c) 2001-2003 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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|
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#include "lwip/api.h" |
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#include "lwip/sys.h" |
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|
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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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|
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conn = netconn_new(NETCONN_UDP); |
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netconn_bind(conn, NULL, 7); |
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|
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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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netbuf_copy(buf, buffer, buf->p->tot_len); |
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buffer[buf->p->tot_len] = '\0'; |
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netconn_send(conn, buf); |
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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", udpecho_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO); |
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} |