2 * Copyright (c) 1987, 1993
3 * The Regents of the University of California. All rights reserved.
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 University 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 REGENTS 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 REGENTS 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
29 * @(#)herror.c 8.1 (Berkeley) 6/4/93
30 * $FreeBSD: src/lib/libc/net/herror.c,v 1.8 1999/08/28 00:00:09 peter Exp $
31 * $DragonFly: src/lib/libc/net/herror.c,v 1.6 2005/11/13 02:04:47 swildner Exp $
35 * Portions Copyright (c) 1996 by Internet Software Consortium.
37 * Permission to use, copy, modify, and distribute this software for any
38 * purpose with or without fee is hereby granted, provided that the above
39 * copyright notice and this permission notice appear in all copies.
41 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
42 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
43 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
44 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
45 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
46 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
47 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
51 #include "namespace.h"
52 #include <sys/types.h>
57 #include "un-namespace.h"
59 const char *h_errlist[] = {
60 "Resolver Error 0 (no error)",
61 "Unknown host", /* 1 HOST_NOT_FOUND */
62 "Host name lookup failure", /* 2 TRY_AGAIN */
63 "Unknown server error", /* 3 NO_RECOVERY */
64 "No address associated with name", /* 4 NO_ADDRESS */
66 int h_nerr = { sizeof h_errlist / sizeof h_errlist[0] };
72 * print the error indicated by the h_errno value.
78 struct iovec *v = iov;
81 v->iov_base = (char *)s;
82 v->iov_len = strlen(s);
88 v->iov_base = (char *)hstrerror(h_errno);
89 v->iov_len = strlen(v->iov_base);
93 _writev(STDERR_FILENO, iov, (v - iov) + 1);
100 return ("Resolver internal error");
101 else if (err < h_nerr)
102 return (h_errlist[err]);
103 return ("Unknown resolver error");