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. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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33 * @(#)herror.c 8.1 (Berkeley) 6/4/93
34 * $FreeBSD: src/lib/libc/net/herror.c,v 1.8 1999/08/28 00:00:09 peter Exp $
35 * $DragonFly: src/lib/libc/net/herror.c,v 1.2 2003/06/17 04:26:44 dillon Exp $
39 * Portions Copyright (c) 1996 by Internet Software Consortium.
41 * Permission to use, copy, modify, and distribute this software for any
42 * purpose with or without fee is hereby granted, provided that the above
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49 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
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51 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
55 #include <sys/types.h>
61 const char *h_errlist[] = {
62 "Resolver Error 0 (no error)",
63 "Unknown host", /* 1 HOST_NOT_FOUND */
64 "Host name lookup failure", /* 2 TRY_AGAIN */
65 "Unknown server error", /* 3 NO_RECOVERY */
66 "No address associated with name", /* 4 NO_ADDRESS */
68 int h_nerr = { sizeof h_errlist / sizeof h_errlist[0] };
74 * print the error indicated by the h_errno value.
81 register struct iovec *v = iov;
84 v->iov_base = (char *)s;
85 v->iov_len = strlen(s);
91 v->iov_base = (char *)hstrerror(h_errno);
92 v->iov_len = strlen(v->iov_base);
96 writev(STDERR_FILENO, iov, (v - iov) + 1);
104 return ("Resolver internal error");
105 else if (err < h_nerr)
106 return (h_errlist[err]);
107 return ("Unknown resolver error");