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初始化版本

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冯佳
2026-02-09 10:27:21 +08:00
commit 64d767932f
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101
lwip/lwip-2.2.1/contrib/apps/tcpecho/tcpecho.c Normal file
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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 "tcpecho.h"
#include "lwip/opt.h"
#if LWIP_NETCONN
#include "lwip/sys.h"
#include "lwip/api.h"
/*-----------------------------------------------------------------------------------*/
static void
tcpecho_thread(void *arg)
{
struct netconn *conn, *newconn;
err_t err;
LWIP_UNUSED_ARG(arg);
/* Create a new connection identifier. */
/* Bind connection to well known port number 7. */
#if LWIP_IPV6
conn = netconn_new(NETCONN_TCP_IPV6);
netconn_bind(conn, IP6_ADDR_ANY, 7);
#else /* LWIP_IPV6 */
conn = netconn_new(NETCONN_TCP);
netconn_bind(conn, IP_ADDR_ANY, 7);
#endif /* LWIP_IPV6 */
LWIP_ERROR("tcpecho: invalid conn", (conn != NULL), return;);
/* Tell connection to go into listening mode. */
netconn_listen(conn);
while (1) {
/* Grab new connection. */
err = netconn_accept(conn, &newconn);
/*printf("accepted new connection %p\n", newconn);*/
/* Process the new connection. */
if (err == ERR_OK) {
struct netbuf *buf;
void *data;
u16_t len;
while ((err = netconn_recv(newconn, &buf)) == ERR_OK) {
/*printf("Recved\n");*/
do {
netbuf_data(buf, &data, &len);
err = netconn_write(newconn, data, len, NETCONN_COPY);
#if 0
if (err != ERR_OK) {
printf("tcpecho: netconn_write: error \"%s\"\n", lwip_strerr(err));
}
#endif
} while (netbuf_next(buf) >= 0);
netbuf_delete(buf);
}
/*printf("Got EOF, looping\n");*/
/* Close connection and discard connection identifier. */
netconn_close(newconn);
netconn_delete(newconn);
}
}
}
/*-----------------------------------------------------------------------------------*/
void
tcpecho_init(void)
{
sys_thread_new("tcpecho_thread", tcpecho_thread, NULL, DEFAULT_THREAD_STACKSIZE, DEFAULT_THREAD_PRIO);
}
/*-----------------------------------------------------------------------------------*/
#endif /* LWIP_NETCONN */

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lwip/lwip-2.2.1/contrib/apps/tcpecho/tcpecho.h Normal file
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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>
*
*/
#ifndef LWIP_TCPECHO_H
#define LWIP_TCPECHO_H
void tcpecho_init(void);
#endif /* LWIP_TCPECHO_H */