2 * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by the Kungliga Tekniska
20 * Högskolan and its contributors.
22 * 4. Neither the name of the Institute nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
26 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 RCSID("$Id: hstrerror.c,v 1.17 1997/06/01 03:37:25 assar Exp $");
46 #ifndef HAVE_HSTRERROR
52 int h_errno = -17; /* Some magic number */
55 #if !(defined(HAVE_H_ERRLIST) && defined(HAVE_H_NERR))
56 static const char *const h_errlist[] = {
57 "Resolver Error 0 (no error)",
58 "Unknown host", /* 1 HOST_NOT_FOUND */
59 "Host name lookup failure", /* 2 TRY_AGAIN */
60 "Unknown server error", /* 3 NO_RECOVERY */
61 "No address associated with name", /* 4 NO_ADDRESS */
66 int h_nerr = { sizeof h_errlist / sizeof h_errlist[0] };
69 #ifndef HAVE_H_ERRLIST_DECLARATION
70 extern const char *h_errlist[];
79 if (0 <= herr && herr < h_nerr)
80 return (char *) h_errlist[herr];
82 return "unknown error";
84 return "Error number out of range (hstrerror)";