/* * Copyright (c) 2001-2004 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_ERR_H__#define __LWIP_ERR_H__#include "lwip/opt.h"#ifdef __cplusplusextern "C" {#endiftypedef 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_RTE        -3    /* Routing problem.         */#define ERR_IS_FATAL(e) ((e) < ERR_RTE)#define ERR_ABRT       -4    /* Connection aborted.      */#define ERR_RST        -5    /* Connection reset.        */#define ERR_CLSD       -6    /* Connection closed.       */#define ERR_CONN       -7    /* Not connected.           */#define ERR_VAL        -8    /* Illegal value.           */#define ERR_ARG        -9    /* Illegal argument.        */#define ERR_USE        -10   /* Address in use.          */#define ERR_IF         -11   /* Low-level netif error    */#define ERR_ISCONN     -12   /* Already connected.       */#define ERR_TIMEOUT    -13   /* Timeout.                 */#define ERR_INPROGRESS -14   /* Operation in progress    */#ifdef LWIP_DEBUGextern const char *lwip_strerr(err_t err);#else#define lwip_strerr(x) ""#endif /* LWIP_DEBUG */#ifdef __cplusplus}#endif#endif /* __LWIP_ERR_H__ */