lib/liblwip/api/err.c

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