err.h

00001 /*
00002  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
00003  * All rights reserved. 
00004  * 
00005  * Redistribution and use in source and binary forms, with or without modification, 
00006  * are permitted provided that the following conditions are met:
00007  *
00008  * 1. Redistributions of source code must retain the above copyright notice,
00009  *    this list of conditions and the following disclaimer.
00010  * 2. Redistributions in binary form must reproduce the above copyright notice,
00011  *    this list of conditions and the following disclaimer in the documentation
00012  *    and/or other materials provided with the distribution.
00013  * 3. The name of the author may not be used to endorse or promote products
00014  *    derived from this software without specific prior written permission. 
00015  *
00016  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 
00017  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
00018  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 
00019  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
00020  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT 
00021  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
00022  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
00023  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 
00024  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 
00025  * OF SUCH DAMAGE.
00026  *
00027  * This file is part of the lwIP TCP/IP stack.
00028  * 
00029  * Author: Adam Dunkels <adam@sics.se>
00030  *
00031  */
00032 #ifndef __LWIP_ERR_H__
00033 #define __LWIP_ERR_H__
00034 
00035 #include "lwip/opt.h"
00036 #include "lwip/arch.h"
00037 
00038 #ifdef __cplusplus
00039 extern "C" {
00040 #endif
00041 
00042 /** Define LWIP_ERR_T in cc.h if you want to use
00043  *  a different type for your platform (must be signed). */
00044 #ifdef LWIP_ERR_T
00045 typedef LWIP_ERR_T err_t;
00046 #else /* LWIP_ERR_T */
00047 typedef s8_t err_t;
00048 #endif /* LWIP_ERR_T*/
00049 
00050 /* Definitions for error constants. */
00051 
00052 #define ERR_OK          0    /* No error, everything OK. */
00053 #define ERR_MEM        -1    /* Out of memory error.     */
00054 #define ERR_BUF        -2    /* Buffer error.            */
00055 #define ERR_TIMEOUT    -3    /* Timeout.                 */
00056 #define ERR_RTE        -4    /* Routing problem.         */
00057 #define ERR_INPROGRESS -5    /* Operation in progress    */
00058 #define ERR_VAL        -6    /* Illegal value.           */
00059 #define ERR_WOULDBLOCK -7    /* Operation would block.   */
00060 
00061 #define ERR_IS_FATAL(e) ((e) < ERR_VAL)
00062 
00063 #define ERR_ABRT       -8    /* Connection aborted.      */
00064 #define ERR_RST        -9    /* Connection reset.        */
00065 #define ERR_CLSD       -10   /* Connection closed.       */
00066 #define ERR_CONN       -11   /* Not connected.           */
00067 
00068 #define ERR_ARG        -12   /* Illegal argument.        */
00069 
00070 #define ERR_USE        -13   /* Address in use.          */
00071 
00072 #define ERR_IF         -14   /* Low-level netif error    */
00073 #define ERR_ISCONN     -15   /* Already connected.       */
00074 
00075 
00076 #ifdef LWIP_DEBUG
00077 extern const char *lwip_strerr(err_t err);
00078 #else
00079 #define lwip_strerr(x) ""
00080 #endif /* LWIP_DEBUG */
00081 
00082 #ifdef __cplusplus
00083 }
00084 #endif
00085 
00086 #endif /* __LWIP_ERR_H__ */