1/*	$NetBSD: res_compat.c,v 1.1 2004/06/09 18:07:03 christos Exp $	*/
2
3/*-
4 * Copyright (c) 2004 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Christos Zoulas.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. All advertising materials mentioning features or use of this software
19 *    must display the following acknowledgement:
20 *        This product includes software developed by the NetBSD
21 *        Foundation, Inc. and its contributors.
22 * 4. Neither the name of The NetBSD Foundation nor the names of its
23 *    contributors may be used to endorse or promote products derived
24 *    from this software without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36 * POSSIBILITY OF SUCH DAMAGE.
37 */
38
39#include <sys/cdefs.h>
40#if defined(LIBC_SCCS) && !defined(lint)
41__RCSID("$NetBSD: res_compat.c,v 1.1 2004/06/09 18:07:03 christos Exp $");
42#endif
43
44#include <sys/types.h>
45#include <arpa/inet.h>
46#include "arpa_nameser.h"
47#include <netdb.h>
48#include <string.h>
49#define __OLD_RES_STATE
50#ifdef ANDROID_CHANGES
51#include "resolv_private.h"
52#else
53#include "resolv.h"
54#endif
55
56#undef _res
57
58/*
59 * Binary Compatibility; this symbol does not appear in a header file
60 * Most userland programs use this to set res_options before res_init()
61 * is called. There are hooks to res_init() to consult the data in this
62 * structure. The hooks are provided indirectly by the two functions below.
63 * We depend on the fact the the first 440 [32 bit machines] bytes are
64 * shared between the two structures.
65 */
66#ifndef __BIND_NOSTATIC
67struct __res_state _res
68#if defined(__BIND_RES_TEXT)
69	= { RES_TIMEOUT, }      /* Motorola, et al. */
70# endif
71;
72
73void *__res_get_old_state(void);
74void __res_put_old_state(void *);
75
76void *
77__res_get_old_state(void)
78{
79	return &_res;
80}
81
82void
83__res_put_old_state(void *res)
84{
85	(void)memcpy(&_res, res, sizeof(_res));
86}
87#endif
88