err.h

嵌入式TCpip协议栈 开源代码

/*
 * Copyright (c) 2001, 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. Neither the name of the Institute nor the names of its contributors 
 *    may be used to endorse or promote products derived from this software 
 *    without specific prior written permission. 
 *
 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``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 INSTITUTE OR CONTRIBUTORS 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 <[e-mail]>
 *
 * $Id: err.h,v 1.2 2001/12/14 20:13:49 adam Exp $
 */
#ifndef __LWIP_ERR_H__
#define __LWIP_ERR_H__

#include "lwip/debug.h"

#include "arch/cc.h"

typedef s8_t err_t;

/* Definitions for error constants. */

#define ERR_OK    0      /* No error, everything OK. */
#define ERR_MEM  -1      /* Out of memory error.     */
#define ERR_BUF  -2      /* Buffer error.            */


#define ERR_ABRT -3      /* Connection aborted.      */
#define ERR_RST  -4      /* Connection reset.        */
#define ERR_CLSD -5      /* Connection closed.       */
#define ERR_CONN -6      /* Not connected.           */

#define ERR_VAL  -7      /* Illegal value.           */

#define ERR_ARG  -8      /* Illegal argument.        */

#define ERR_RTE  -9      /* Routing problem.         */

#define ERR_USE  -10     /* Address in use.          */



#ifdef LWIP_DEBUG
extern char *lwip_strerr(err_t err);
#else
#define lwip_strerr(x) ""
#endif /* LWIP_DEBUG */
#endif /* __LWIP_ERR_H__ */