2 * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the project nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
35 /* Entries EAI_ADDRFAMILY (1) and EAI_NODATA (7) are obsoleted, but left */
36 /* for backward compatibility with userland code prior to 2553bis-02 */
37 static const char *ai_errlist[] = {
39 "Address family for hostname not supported", /* 1 */
40 "Temporary failure in name resolution", /* EAI_AGAIN */
41 "Invalid value for ai_flags", /* EAI_BADFLAGS */
42 "Non-recoverable failure in name resolution", /* EAI_FAIL */
43 "ai_family not supported", /* EAI_FAMILY */
44 "Memory allocation failure", /* EAI_MEMORY */
45 "No address associated with hostname", /* 7 */
46 "hostname nor servname provided, or not known", /* EAI_NONAME */
47 "servname not supported for ai_socktype", /* EAI_SERVICE */
48 "ai_socktype not supported", /* EAI_SOCKTYPE */
49 "System error returned in errno", /* EAI_SYSTEM */
50 "Invalid value for hints", /* EAI_BADHINTS */
51 "Resolved protocol is unknown", /* EAI_PROTOCOL */
52 "Argument buffer overflow" /* EAI_OVERFLOW */
56 gai_strerror(int ecode)
58 if (ecode >= 0 && ecode < EAI_MAX)
59 return ai_errlist[ecode];
60 return "Unknown error";