lwip/api/err.c

0001 /**
0002  * @file
0003  * Error Management module
0004  *
0005  */
0006
0007 /*
0008  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
0009  * All rights reserved.
0010  *
0011  * Redistribution and use in source and binary forms, with or without modification,
0012  * are permitted provided that the following conditions are met:
0013  *
0014  * 1. Redistributions of source code must retain the above copyright notice,
0015  *    this list of conditions and the following disclaimer.
0016  * 2. Redistributions in binary form must reproduce the above copyright notice,
0017  *    this list of conditions and the following disclaimer in the documentation
0018  *    and/or other materials provided with the distribution.
0019  * 3. The name of the author may not be used to endorse or promote products
0020  *    derived from this software without specific prior written permission.
0021  *
0022  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
0023  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
0024  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
0025  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
0026  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
0027  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0028  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0029  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
0030  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
0031  * OF SUCH DAMAGE.
0032  *
0033  * This file is part of the lwIP TCP/IP stack.
0034  *
0035  * Author: Adam Dunkels <adam@sics.se>
0036  *
0037  */
0038
0039 #include "lwip/err.h"
0040
0041 #ifdef LWIP_DEBUG
0042
0043 static const char *err_strerr[] = {
0044            "Ok.",                    /* ERR_OK          0  */
0045            "Out of memory error.",   /* ERR_MEM        -1  */
0046            "Buffer error.",          /* ERR_BUF        -2  */
0047            "Timeout.",               /* ERR_TIMEOUT    -3 */
0048            "Routing problem.",       /* ERR_RTE        -4  */
0049            "Connection aborted.",    /* ERR_ABRT       -5  */
0050            "Connection reset.",      /* ERR_RST        -6  */
0051            "Connection closed.",     /* ERR_CLSD       -7  */
0052            "Not connected.",         /* ERR_CONN       -8  */
0053            "Illegal value.",         /* ERR_VAL        -9  */
0054            "Illegal argument.",      /* ERR_ARG        -10 */
0055            "Address in use.",        /* ERR_USE        -11 */
0056            "Low-level netif error.", /* ERR_IF         -12 */
0057            "Already connected.",     /* ERR_ISCONN     -13 */
0058            "Operation in progress."  /* ERR_INPROGRESS -14 */
0059 };
0060
0061 /**
0062  * Convert an lwip internal error to a string representation.
0063  *
0064  * @param err an lwip internal err_t
0065  * @return a string representation for err
0066  */
0067 const char *
0068 lwip_strerr(err_t err)
0069 {
0070   return err_strerr[-err];
0071
0072 }
0073
0074 #endif /* LWIP_DEBUG */