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1 office 1 /**
2 * @file
3 * lwIP Error codes
4 */
5 /*
6 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without modification,
10 * are permitted provided that the following conditions are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright notice,
15 * this list of conditions and the following disclaimer in the documentation
16 * and/or other materials provided with the distribution.
17 * 3. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
21 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
22 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
23 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
25 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
28 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
29 * OF SUCH DAMAGE.
30 *
31 * This file is part of the lwIP TCP/IP stack.
32 *
33 * Author: Adam Dunkels <adam@sics.se>
34 *
35 */
36 #ifndef LWIP_HDR_ERR_H
37 #define LWIP_HDR_ERR_H
38  
39 #include "lwip/opt.h"
40 #include "lwip/arch.h"
41  
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45  
46 /**
47 * @defgroup infrastructure_errors Error codes
48 * @ingroup infrastructure
49 * @{
50 */
51  
52 /** Define LWIP_ERR_T in cc.h if you want to use
53 * a different type for your platform (must be signed). */
54 #ifdef LWIP_ERR_T
55 typedef LWIP_ERR_T err_t;
56 #else /* LWIP_ERR_T */
57 typedef s8_t err_t;
58 #endif /* LWIP_ERR_T*/
59  
60 /** Definitions for error constants. */
61 typedef enum {
62 /** No error, everything OK. */
63 ERR_OK = 0,
64 /** Out of memory error. */
65 ERR_MEM = -1,
66 /** Buffer error. */
67 ERR_BUF = -2,
68 /** Timeout. */
69 ERR_TIMEOUT = -3,
70 /** Routing problem. */
71 ERR_RTE = -4,
72 /** Operation in progress */
73 ERR_INPROGRESS = -5,
74 /** Illegal value. */
75 ERR_VAL = -6,
76 /** Operation would block. */
77 ERR_WOULDBLOCK = -7,
78 /** Address in use. */
79 ERR_USE = -8,
80 /** Already connecting. */
81 ERR_ALREADY = -9,
82 /** Conn already established.*/
83 ERR_ISCONN = -10,
84 /** Not connected. */
85 ERR_CONN = -11,
86 /** Low-level netif error */
87 ERR_IF = -12,
88  
89 /** Connection aborted. */
90 ERR_ABRT = -13,
91 /** Connection reset. */
92 ERR_RST = -14,
93 /** Connection closed. */
94 ERR_CLSD = -15,
95 /** Illegal argument. */
96 ERR_ARG = -16
97 } err_enum_t;
98  
99 /**
100 * @}
101 */
102  
103 #ifdef LWIP_DEBUG
104 extern const char *lwip_strerr(err_t err);
105 #else
106 #define lwip_strerr(x) ""
107 #endif /* LWIP_DEBUG */
108  
109 #if !NO_SYS
110 int err_to_errno(err_t err);
111 #endif /* !NO_SYS */
112  
113 #ifdef __cplusplus
114 }
115 #endif
116  
117 #endif /* LWIP_HDR_ERR_H */