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      1 /*
      2  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without modification,
      6  * are permitted provided that the following conditions are met:
      7  *
      8  * 1. Redistributions of source code must retain the above copyright notice,
      9  *    this list of conditions and the following disclaimer.
     10  * 2. Redistributions in binary form must reproduce the above copyright notice,
     11  *    this list of conditions and the following disclaimer in the documentation
     12  *    and/or other materials provided with the distribution.
     13  * 3. The name of the author may not be used to endorse or promote products
     14  *    derived from this software without specific prior written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
     17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
     18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
     19  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
     21  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
     24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
     25  * OF SUCH DAMAGE.
     26  *
     27  * This file is part of the lwIP TCP/IP stack.
     28  *
     29  * Author: Adam Dunkels <adam (at) sics.se>
     30  *
     31  */
     32 #ifndef __LWIP_ERR_H__
     33 #define __LWIP_ERR_H__
     34 
     35 #include "lwip/opt.h"
     36 #include "lwip/arch.h"
     37 
     38 #ifdef __cplusplus
     39 extern "C" {
     40 #endif
     41 
     42 /** Define LWIP_ERR_T in cc.h if you want to use
     43  *  a different type for your platform (must be signed). */
     44 #ifdef LWIP_ERR_T
     45 typedef LWIP_ERR_T err_t;
     46 #else /* LWIP_ERR_T */
     47 typedef s8_t err_t;
     48 #endif /* LWIP_ERR_T*/
     49 
     50 /* Definitions for error constants. */
     51 
     52 #define ERR_OK          0    /* No error, everything OK. */
     53 #define ERR_MEM        -1    /* Out of memory error.     */
     54 #define ERR_BUF        -2    /* Buffer error.            */
     55 #define ERR_TIMEOUT    -3    /* Timeout.                 */
     56 #define ERR_RTE        -4    /* Routing problem.         */
     57 #define ERR_INPROGRESS -5    /* Operation in progress    */
     58 #define ERR_VAL        -6    /* Illegal value.           */
     59 #define ERR_WOULDBLOCK -7    /* Operation would block.   */
     60 #define ERR_USE        -8    /* Address in use.          */
     61 #define ERR_ISCONN     -9    /* Already connected.       */
     62 
     63 #define ERR_IS_FATAL(e) ((e) < ERR_ISCONN)
     64 
     65 #define ERR_ABRT       -10   /* Connection aborted.      */
     66 #define ERR_RST        -11   /* Connection reset.        */
     67 #define ERR_CLSD       -12   /* Connection closed.       */
     68 #define ERR_CONN       -13   /* Not connected.           */
     69 
     70 #define ERR_ARG        -14   /* Illegal argument.        */
     71 
     72 #define ERR_IF         -15   /* Low-level netif error    */
     73 
     74 
     75 #ifdef LWIP_DEBUG
     76 extern const char *lwip_strerr(err_t err);
     77 #else
     78 #define lwip_strerr(x) ""
     79 #endif /* LWIP_DEBUG */
     80 
     81 #ifdef __cplusplus
     82 }
     83 #endif
     84 
     85 #endif /* __LWIP_ERR_H__ */
     86