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# udpecho.c

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    00001 /*
    00002  * Copyright (c) 2001, Swedish Institute of Computer Science.
    00003  * All rights reserved.
    00004  *
    00005  * Redistribution and use in source and binary forms, with or without
    00006  * modification, are permitted provided that the following conditions
    00007  * are met:
    00008  * 1. Redistributions of source code must retain the above copyright
    00009  *    notice, this list of conditions and the following disclaimer.
    00010  * 2. Redistributions in binary form must reproduce the above copyright
    00011  *    notice, this list of conditions and the following disclaimer in the
    00012  *    documentation and/or other materials provided with the distribution.
    00013  * 3. Neither the name of the Institute nor the names of its contributors
    00014  *    may be used to endorse or promote products derived from this software
    00015  *    without specific prior written permission.
    00016  *
    00017  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
    00018  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    00019  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
    00020  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
    00021  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
    00022  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
    00023  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    00024  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    00025  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    00026  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    00027  * SUCH DAMAGE.
    00028  *
    00029  * This file is part of the lwIP TCP/IP stack.
    00030  *
    00031  * Author: Adam Dunkels <adam@sics.se>
    00032  *
    00033  * $Id: udpecho_8c-source.html 88 2016-01-12 00:11:29Z reddawg $
    00034  */
    00035
    00036 #include <ubixos/types.h>
    00037 #include <lib/kprintf.h>
    00038
    00039 #include "net/api.h"
    00040 #include "net/sys.h"
    00041
    00042 /*-----------------------------------------------------------------------------------*/
    00043 void
    00044 udpecho_thread(void *arg)
    00045 {
    00046   static struct netconn *conn;
    00047   static struct netbuf *buf;
    00048   static struct ip_addr *addr;
    00049   static unsigned short port;
    00050   char buffer[4096];
    00051
    00052   kprintf("1");
    00053   conn = netconn_new(NETCONN_UDP);
    00054   kprintf("2");
    00055   netconn_bind(conn, NULL, 7);
    00056   kprintf("3");
    00057
    00058   while(1) {
    00059     kprintf("a");
    00060     buf = netconn_recv(conn);
    00061     kprintf("b");
    00062     addr = netbuf_fromaddr(buf);
    00063     kprintf("c");
    00064     port = netbuf_fromport(buf);
    00065     kprintf("d");
    00066     netconn_connect(conn, addr, port);
    00067     kprintf("e");
    00068     netconn_send(conn, buf);
    00069     kprintf("f");
    00070     netbuf_copy(buf, buffer, sizeof(buffer));
    00071     kprintf("got %s\n", buffer);
    00072     netbuf_delete(buf);
    00073     kprintf("g");
    00074   }
    00075 }
    00076 /*-----------------------------------------------------------------------------------*/
    00077 void
    00078 udpecho_init(void)
    00079 {
    00080   sys_thread_new(udpecho_thread, NULL);
    00081 }