1/*
2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 *    this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 *    this list of conditions and the following disclaimer in the documentation
12 *    and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 *    derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
25 * OF SUCH DAMAGE.
26 *
27 * This file is part of the lwIP TCP/IP stack.
28 *
29 * Author: Adam Dunkels <adam@sics.se>
30 *
31 */
32#ifndef __LWIP_ERR_H__
33#define __LWIP_ERR_H__
34
35#include "lwip/opt.h"
36#include "lwip/arch.h"
37
38#ifdef __cplusplus
39extern "C" {
40#endif
41
42/** Define LWIP_ERR_T in cc.h if you want to use
43 *  a different type for your platform (must be signed). */
44#ifdef LWIP_ERR_T
45typedef LWIP_ERR_T err_t;
46#else /* LWIP_ERR_T */
47typedef s8_t err_t;
48#endif /* LWIP_ERR_T*/
49
50/* Definitions for error constants. */
51
52#define ERR_OK          0    /* No error, everything OK. */
53#define ERR_MEM        -1    /* Out of memory error.     */
54#define ERR_BUF        -2    /* Buffer error.            */
55#define ERR_TIMEOUT    -3    /* Timeout.                 */
56#define ERR_RTE        -4    /* Routing problem.         */
57#define ERR_INPROGRESS -5    /* Operation in progress    */
58#define ERR_VAL        -6    /* Illegal value.           */
59#define ERR_WOULDBLOCK -7    /* Operation would block.   */
60#define ERR_USE        -8    /* Address in use.          */
61#define ERR_ISCONN     -9    /* Already connected.       */
62
63#define ERR_IS_FATAL(e) ((e) < ERR_ISCONN)
64
65#define ERR_ABRT       -10   /* Connection aborted.      */
66#define ERR_RST        -11   /* Connection reset.        */
67#define ERR_CLSD       -12   /* Connection closed.       */
68#define ERR_CONN       -13   /* Not connected.           */
69
70#define ERR_ARG        -14   /* Illegal argument.        */
71
72#define ERR_IF         -15   /* Low-level netif error    */
73
74
75#ifdef LWIP_DEBUG
76extern const char *lwip_strerr(err_t err);
77#else
78#define lwip_strerr(x) ""
79#endif /* LWIP_DEBUG */
80
81#ifdef __cplusplus
82}
83#endif
84
85#endif /* __LWIP_ERR_H__ */
86