minix/lib/liblwip/dist/src/include/lwip/err.h

   1 /**
   2  * @file
   3  * lwIP Error codes
   4  */
   5 /*
   6  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without modification,
  10  * are permitted provided that the following conditions are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright notice,
  13  *    this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright notice,
  15  *    this list of conditions and the following disclaimer in the documentation
  16  *    and/or other materials provided with the distribution.
  17  * 3. The name of the author may not be used to endorse or promote products
  18  *    derived from this software without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  21  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  22  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
  23  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  24  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
  25  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  28  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  29  * OF SUCH DAMAGE.
  30  *
  31  * This file is part of the lwIP TCP/IP stack.
  32  *
  33  * Author: Adam Dunkels <adam@sics.se>
  34  *
  35  */
  36 #ifndef LWIP_HDR_ERR_H
  37 #define LWIP_HDR_ERR_H
  38
  39 #include "lwip/opt.h"
  40 #include "lwip/arch.h"
  41
  42 #ifdef __cplusplus
  43 extern "C" {
  44 #endif
  45
  46 /**
  47  * @defgroup infrastructure_errors Error codes
  48  * @ingroup infrastructure
  49  * @{
  50  */
  51
  52 /** Define LWIP_ERR_T in cc.h if you want to use
  53  *  a different type for your platform (must be signed). */
  54 #ifdef LWIP_ERR_T
  55 typedef LWIP_ERR_T err_t;
  56 #else /* LWIP_ERR_T */
  57 typedef s8_t err_t;
  58 #endif /* LWIP_ERR_T*/
  59
  60 /** Definitions for error constants. */
  61 typedef enum {
  62 /** No error, everything OK. */
  63   ERR_OK         = 0,
  64 /** Out of memory error.     */
  65   ERR_MEM        = -1,
  66 /** Buffer error.            */
  67   ERR_BUF        = -2,
  68 /** Timeout.                 */
  69   ERR_TIMEOUT    = -3,
  70 /** Routing problem.         */
  71   ERR_RTE        = -4,
  72 /** Operation in progress    */
  73   ERR_INPROGRESS = -5,
  74 /** Illegal value.           */
  75   ERR_VAL        = -6,
  76 /** Operation would block.   */
  77   ERR_WOULDBLOCK = -7,
  78 /** Address in use.          */
  79   ERR_USE        = -8,
  80 /** Already connecting.      */
  81   ERR_ALREADY    = -9,
  82 /** Conn already established.*/
  83   ERR_ISCONN     = -10,
  84 /** Not connected.           */
  85   ERR_CONN       = -11,
  86 /** Low-level netif error    */
  87   ERR_IF         = -12,
  88
  89 /** Connection aborted.      */
  90   ERR_ABRT       = -13,
  91 /** Connection reset.        */
  92   ERR_RST        = -14,
  93 /** Connection closed.       */
  94   ERR_CLSD       = -15,
  95 /** Illegal argument.        */
  96   ERR_ARG        = -16
  97 } err_enum_t;
  98
  99 #define ERR_IS_FATAL(e) ((e) <= ERR_ABRT)
 100
 101 /**
 102  * @}
 103  */
 104
 105 #ifdef LWIP_DEBUG
 106 extern const char *lwip_strerr(err_t err);
 107 #else
 108 #define lwip_strerr(x) ""
 109 #endif /* LWIP_DEBUG */
 110
 111 #if !NO_SYS
 112 int err_to_errno(err_t err);
 113 #endif /* !NO_SYS */
 114
 115 #ifdef __cplusplus
 116 }
 117 #endif
 118
 119 #endif /* LWIP_HDR_ERR_H */