lib/drivers/lwip/src/include/lwip/err.h

   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@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
  61 #define ERR_IS_FATAL(e) ((e) < ERR_VAL)
  62
  63 #define ERR_ABRT       -8    /* Connection aborted.      */
  64 #define ERR_RST        -9    /* Connection reset.        */
  65 #define ERR_CLSD       -10   /* Connection closed.       */
  66 #define ERR_CONN       -11   /* Not connected.           */
  67
  68 #define ERR_ARG        -12   /* Illegal argument.        */
  69
  70 #define ERR_USE        -13   /* Address in use.          */
  71
  72 #define ERR_IF         -14   /* Low-level netif error    */
  73 #define ERR_ISCONN     -15   /* Already connected.       */
  74
  75
  76 #ifdef LWIP_DEBUG
  77 extern const char *lwip_strerr(err_t err);
  78 #else
  79 #define lwip_strerr(x) ""
  80 #endif /* LWIP_DEBUG */
  81
  82 #ifdef __cplusplus
  83 }
  84 #endif
  85
  86 #endif /* __LWIP_ERR_H__ */