1 /* Copyright (C) 1997, 2001 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Philip Blundell <pjb27@cam.ac.uk>, 1997.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19 #include <stdio.h>
20 #include <netdb.h>
21
22 static const struct
23 {
24 int code;
25 const char *msg;
26 }
27 values[] =
28 {
29 { EAI_ADDRFAMILY, "Address family for hostname not supported" },
30 { EAI_AGAIN, "Temporary failure in name resolution" },
31 { EAI_BADFLAGS, "Bad value for ai_flags" },
32 { EAI_FAIL, "Non-recoverable failure in name resolution" },
33 { EAI_FAMILY, "ai_family not supported" },
34 { EAI_MEMORY, "Memory allocation failure" },
35 { EAI_NODATA, "No address associated with hostname" },
36 { EAI_NONAME, "Name or service not known" },
37 { EAI_SERVICE, "Servname not supported for ai_socktype" },
38 { EAI_SOCKTYPE, "ai_socktype not supported" },
39 { EAI_SYSTEM, "System error" },
40 { EAI_INPROGRESS, "Processing request in progress" },
41 { EAI_CANCELED, "Request canceled" },
42 { EAI_NOTCANCELED, "Request not canceled" },
43 { EAI_ALLDONE, "All requests done" },
44 { EAI_INTR, "Interrupted by a signal" }
45 };
46
47 const char *
gai_strerror(int code)48 gai_strerror (int code)
49 {
50 size_t i;
51 for (i = 0; i < sizeof (values) / sizeof (values[0]); ++i)
52 if (values[i].code == code)
53 return values[i].msg;
54
55 return "Unknown error";
56 }
57