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121 lines
3.6 KiB
C
121 lines
3.6 KiB
C
/*
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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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#include "lwip/opt.h"
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#if LWIP_NETCONN
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#include "lwip/sys.h"
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#include "lwip/api.h"
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#define TCPECHO_THREAD_PRIO ( tskIDLE_PRIORITY + 3 )
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/*-----------------------------------------------------------------------------------*/
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static void tcpecho_thread(void *arg)
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{
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struct netconn *conn, *newconn;
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err_t err;
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LWIP_UNUSED_ARG(arg);
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/* Create a new connection identifier. */
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conn = netconn_new(NETCONN_TCP);
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if (conn!=NULL)
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{
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/* Bind connection to well known port number 7. */
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err = netconn_bind(conn, NULL, 7);
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if (err == ERR_OK)
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{
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/* Tell connection to go into listening mode. */
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netconn_listen(conn);
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while (1)
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{
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/* Grab new connection. */
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newconn = netconn_accept(conn);
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/* Process the new connection. */
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if (newconn)
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{
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struct netbuf *buf;
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void *data;
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u16_t len;
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while ((buf = netconn_recv(newconn)) != NULL)
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{
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do
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{
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netbuf_data(buf, &data, &len);
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netconn_write(newconn, data, len, NETCONN_COPY);
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}
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while (netbuf_next(buf) >= 0);
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netbuf_delete(buf);
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}
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/* Close connection and discard connection identifier. */
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netconn_close(newconn);
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netconn_delete(newconn);
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}
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}
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}
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else
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{
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printf(" can not bind TCP netconn");
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}
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}
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else
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{
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printf("can not create TCP netconn");
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}
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}
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/*-----------------------------------------------------------------------------------*/
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void tcpecho_init(void)
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{
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sys_thread_new("tcpecho", tcpecho_thread, NULL, DEFAULT_THREAD_STACKSIZE, TCPECHO_THREAD_PRIO);
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}
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/*-----------------------------------------------------------------------------------*/
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void cmd_tcpecho(int argc, char **argv)
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{
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printf("\n\rInit TCP ECHO Server ...");
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tcpecho_init();
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printf("\n\r\nPlease use echotool to connect to this echo server. ex. echotool 192.168.0.1 /p tcp /r 7 /n 0");
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}
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#endif /* LWIP_NETCONN */
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