lwip_err.c

00001 /**
00002  * @file
00003  * Error Management module
00004  *
00005  */
00006 
00007 /*
00008  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
00009  * All rights reserved.
00010  *
00011  * Redistribution and use in source and binary forms, with or without modification,
00012  * are permitted provided that the following conditions are met:
00013  *
00014  * 1. Redistributions of source code must retain the above copyright notice,
00015  *    this list of conditions and the following disclaimer.
00016  * 2. Redistributions in binary form must reproduce the above copyright notice,
00017  *    this list of conditions and the following disclaimer in the documentation
00018  *    and/or other materials provided with the distribution.
00019  * 3. The name of the author may not be used to endorse or promote products
00020  *    derived from this software without specific prior written permission.
00021  *
00022  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
00023  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
00024  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
00025  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
00026  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
00027  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
00028  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
00029  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
00030  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
00031  * OF SUCH DAMAGE.
00032  *
00033  * This file is part of the lwIP TCP/IP stack.
00034  *
00035  * Author: Adam Dunkels <adam@sics.se>
00036  *
00037  */
00038 
00039 #include "lwip/err.h"
00040 
00041 #ifdef LWIP_DEBUG
00042 
00043 static const char *err_strerr[] = {
00044            "Ok.",                    /* ERR_OK          0  */
00045            "Out of memory error.",   /* ERR_MEM        -1  */
00046            "Buffer error.",          /* ERR_BUF        -2  */
00047            "Timeout.",               /* ERR_TIMEOUT    -3  */
00048            "Routing problem.",       /* ERR_RTE        -4  */
00049            "Operation in progress.", /* ERR_INPROGRESS -5  */
00050            "Illegal value.",         /* ERR_VAL        -6  */
00051            "Operation would block.", /* ERR_WOULDBLOCK -7  */
00052            "Address in use.",        /* ERR_USE        -8  */
00053            "Already connecting.",    /* ERR_ALREADY    -9  */
00054            "Already connected.",     /* ERR_ISCONN     -10 */
00055            "Not connected.",         /* ERR_CONN       -11 */
00056            "Low-level netif error.", /* ERR_IF         -12 */
00057            "Connection aborted.",    /* ERR_ABRT       -13 */
00058            "Connection reset.",      /* ERR_RST        -14 */
00059            "Connection closed.",     /* ERR_CLSD       -15 */
00060            "Illegal argument."       /* ERR_ARG        -16 */
00061 };
00062 
00063 /**
00064  * Convert an lwip internal error to a string representation.
00065  *
00066  * @param err an lwip internal err_t
00067  * @return a string representation for err
00068  */
00069 const char *
00070 lwip_strerr(err_t err)
00071 {
00072   return err_strerr[-err];
00073 }
00074 
00075 #endif /* LWIP_DEBUG */