UbixOS  2.0
err.c
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1 
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@sics.se>
36  *
37  */
38 
39 #include <net/err.h>
40 #include <net/def.h>
41 #include <net/sys.h>
42 
43 #include <net/errno.h>
44 
45 int errno;
46 
47 #if !NO_SYS
48 
50 static const int err_to_errno_table[] = {
51  0, /* ERR_OK 0 No error, everything OK. */
52  ENOMEM, /* ERR_MEM -1 Out of memory error. */
53  ENOBUFS, /* ERR_BUF -2 Buffer error. */
54  EWOULDBLOCK, /* ERR_TIMEOUT -3 Timeout */
55  EHOSTUNREACH, /* ERR_RTE -4 Routing problem. */
56  EINPROGRESS, /* ERR_INPROGRESS -5 Operation in progress */
57  EINVAL, /* ERR_VAL -6 Illegal value. */
58  EWOULDBLOCK, /* ERR_WOULDBLOCK -7 Operation would block. */
59  EADDRINUSE, /* ERR_USE -8 Address in use. */
60  EALREADY, /* ERR_ALREADY -9 Already connecting. */
61  EISCONN, /* ERR_ISCONN -10 Conn already established.*/
62  ENOTCONN, /* ERR_CONN -11 Not connected. */
63  -1, /* ERR_IF -12 Low-level netif error */
64  ECONNABORTED, /* ERR_ABRT -13 Connection aborted. */
65  ECONNRESET, /* ERR_RST -14 Connection reset. */
66  ENOTCONN, /* ERR_CLSD -15 Connection closed. */
67  EIO /* ERR_ARG -16 Illegal argument. */
68 };
69 
70 int
71 err_to_errno(err_t err)
72 {
73  if ((err > 0) || (-err >= (err_t)LWIP_ARRAYSIZE(err_to_errno_table))) {
74  return EIO;
75  }
76  return err_to_errno_table[-err];
77 }
78 #endif /* !NO_SYS */
79 
80 #ifdef LWIP_DEBUG
81 
82 static const char *err_strerr[] = {
83  "Ok.", /* ERR_OK 0 */
84  "Out of memory error.", /* ERR_MEM -1 */
85  "Buffer error.", /* ERR_BUF -2 */
86  "Timeout.", /* ERR_TIMEOUT -3 */
87  "Routing problem.", /* ERR_RTE -4 */
88  "Operation in progress.", /* ERR_INPROGRESS -5 */
89  "Illegal value.", /* ERR_VAL -6 */
90  "Operation would block.", /* ERR_WOULDBLOCK -7 */
91  "Address in use.", /* ERR_USE -8 */
92  "Already connecting.", /* ERR_ALREADY -9 */
93  "Already connected.", /* ERR_ISCONN -10 */
94  "Not connected.", /* ERR_CONN -11 */
95  "Low-level netif error.", /* ERR_IF -12 */
96  "Connection aborted.", /* ERR_ABRT -13 */
97  "Connection reset.", /* ERR_RST -14 */
98  "Connection closed.", /* ERR_CLSD -15 */
99  "Illegal argument." /* ERR_ARG -16 */
100 };
101 
108 const char *
109 lwip_strerr(err_t err)
110 {
111  if ((err > 0) || (-err >= (err_t)LWIP_ARRAYSIZE(err_strerr))) {
112  return "Unknown error.";
113  }
114  return err_strerr[-err];
115 }
116 
117 #endif /* LWIP_DEBUG */
sys.h
EISCONN
#define EISCONN
Definition: errno.h:101
def.h
ENOTCONN
#define ENOTCONN
Definition: errno.h:102
ECONNABORTED
#define ECONNABORTED
Definition: errno.h:98
err_to_errno
int err_to_errno(err_t err)
Definition: err.c:71
EINPROGRESS
#define EINPROGRESS
Definition: errno.h:76
LWIP_ARRAYSIZE
#define LWIP_ARRAYSIZE(x)
Definition: def.h:58
EADDRINUSE
#define EADDRINUSE
Definition: errno.h:91
ECONNRESET
#define ECONNRESET
Definition: errno.h:99
err.h
errno
int errno
Definition: err.c:45
EHOSTUNREACH
#define EHOSTUNREACH
Definition: errno.h:114
ENOMEM
#define ENOMEM
Definition: errno.h:44
EIO
#define EIO
Definition: errno.h:36
errno.h
err_t
s8_t err_t
Definition: err.h:57
EALREADY
#define EALREADY
Definition: errno.h:77
EWOULDBLOCK
#define EWOULDBLOCK
Definition: errno.h:75
ENOBUFS
#define ENOBUFS
Definition: errno.h:100
EINVAL
#define EINVAL
Definition: errno.h:55
lwip_strerr
#define lwip_strerr(x)
Definition: err.h:108