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      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 (at) 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            "Address in use.",        /* ERR_USE        -8  */
     53            "Already connected.",     /* ERR_ISCONN     -9  */
     54            "Connection aborted.",    /* ERR_ABRT       -10 */
     55            "Connection reset.",      /* ERR_RST        -11 */
     56            "Connection closed.",     /* ERR_CLSD       -12 */
     57            "Not connected.",         /* ERR_CONN       -13 */
     58            "Illegal argument.",      /* ERR_ARG        -14 */
     59            "Low-level netif error.", /* ERR_IF         -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 */
     76