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
67 struct __res_state _res
68 #if defined(__BIND_RES_TEXT)
69 = { RES_TIMEOUT, } /* Motorola, et al. */
70 # endif
71 ;
72
73 void *__res_get_old_state(void);
74 void __res_put_old_state(void *);
75
76 void *
__res_get_old_state(void)77 __res_get_old_state(void)
78 {
79 return &_res;
80 }
81
82 void
__res_put_old_state(void * res)83 __res_put_old_state(void *res)
84 {
85 (void)memcpy(&_res, res, sizeof(_res));
86 }
87 #endif
88