source: rtems-libbsd/freebsd/lib/libc/resolv/herror.c @ bceabc9

4.1155-freebsd-126-freebsd-12freebsd-9.3
Last change on this file since bceabc9 was bceabc9, checked in by Sebastian Huber <sebastian.huber@…>, on Oct 9, 2013 at 8:42:09 PM

Move files to match FreeBSD layout

  • Property mode set to 100644
File size: 4.1 KB
Line 
1#include "port_before.h"
2
3/*
4 * Copyright (c) 1987, 1993
5 *    The Regents of the University of California.  All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 * 4. Neither the name of the University nor the names of its contributors
16 *    may be used to endorse or promote products derived from this software
17 *    without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32/*
33 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
34 * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
35 *
36 * Permission to use, copy, modify, and distribute this software for any
37 * purpose with or without fee is hereby granted, provided that the above
38 * copyright notice and this permission notice appear in all copies.
39 *
40 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
41 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
42 * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
43 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
44 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
45 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
46 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
47 */
48
49#if defined(LIBC_SCCS) && !defined(lint)
50static const char sccsid[] = "@(#)herror.c      8.1 (Berkeley) 6/4/93";
51static const char rcsid[] = "$Id: herror.c,v 1.3.18.1 2005/04/27 05:01:09 sra Exp $";
52#endif /* LIBC_SCCS and not lint */
53#include <sys/cdefs.h>
54__FBSDID("$FreeBSD$");
55
56#include "port_before.h"
57
58#include "namespace.h"
59#include <sys/types.h>
60#include <sys/param.h>
61#include <sys/uio.h>
62
63#include <netinet/in.h>
64#include <arpa/nameser.h>
65
66#include <netdb.h>
67#include <resolv.h>
68#include <string.h>
69#include <unistd.h>
70#include "un-namespace.h"
71
72#include "port_after.h"
73
74const char *h_errlist[] = {
75        "Resolver Error 0 (no error)",
76        "Unknown host",                         /*%< 1 HOST_NOT_FOUND */
77        "Host name lookup failure",             /*%< 2 TRY_AGAIN */
78        "Unknown server error",                 /*%< 3 NO_RECOVERY */
79        "No address associated with name",      /*%< 4 NO_ADDRESS */
80};
81const int h_nerr = { sizeof h_errlist / sizeof h_errlist[0] };
82
83#undef  h_errno
84int     h_errno;
85
86/*%
87 * herror --
88 *      print the error indicated by the h_errno value.
89 */
90void
91herror(const char *s) {
92        struct iovec iov[4], *v = iov;
93        char *t;
94
95        if (s != NULL && *s != '\0') {
96                DE_CONST(s, t);
97                v->iov_base = t;
98                v->iov_len = strlen(t);
99                v++;
100                DE_CONST(": ", t);
101                v->iov_base = t;
102                v->iov_len = 2;
103                v++;
104        }
105        DE_CONST(hstrerror(*__h_errno()), t);
106        v->iov_base = t;
107        v->iov_len = strlen(v->iov_base);
108        v++;
109        DE_CONST("\n", t);
110        v->iov_base = t;
111        v->iov_len = 1;
112        _writev(STDERR_FILENO, iov, (v - iov) + 1);
113}
114
115/*%
116 * hstrerror --
117 *      return the string associated with a given "host" errno value.
118 */
119const char *
120hstrerror(int err) {
121        if (err < 0)
122                return ("Resolver internal error");
123        else if (err < h_nerr)
124                return (h_errlist[err]);
125        return ("Unknown resolver error");
126}
127
128/*! \file */
Note: See TracBrowser for help on using the repository browser.