1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/* $OpenBSD: gai_strerror.c,v 1.8 2015/09/14 07:38:38 guenther Exp $ */
/*
* Copyright (c) 1997-1999, Craig Metz, All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Craig Metz and
* by other contributors.
* 4. Neither the name of the author nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/* gai_strerror() v1.38 */
#include <sys/types.h>
#include <netdb.h>
#include <errno.h>
const char *
gai_strerror(int errnum)
{
switch (errnum) {
case 0:
return "no error";
case EAI_BADFLAGS:
return "invalid value for ai_flags";
case EAI_NONAME:
return "name or service is not known";
case EAI_AGAIN:
return "temporary failure in name resolution";
case EAI_FAIL:
return "non-recoverable failure in name resolution";
case EAI_NODATA:
return "no address associated with name";
case EAI_FAMILY:
return "ai_family not supported";
case EAI_SOCKTYPE:
return "ai_socktype not supported";
case EAI_SERVICE:
return "service not supported for ai_socktype";
case EAI_ADDRFAMILY:
return "address family for name not supported";
case EAI_MEMORY:
return "memory allocation failure";
case EAI_SYSTEM:
return "system error";
case EAI_BADHINTS:
return "invalid value for hints";
case EAI_PROTOCOL:
return "resolved protocol is unknown";
case EAI_OVERFLOW:
return "argument buffer overflow";
default:
return "unknown/invalid error";
}
}
DEF_WEAK(gai_strerror);
|
