1*2fe8fb19SBen Gras /* $NetBSD: res_state.c,v 1.8 2009/01/11 02:46:29 christos Exp $ */
2*2fe8fb19SBen Gras
3*2fe8fb19SBen Gras /*-
4*2fe8fb19SBen Gras * Copyright (c) 2004 The NetBSD Foundation, Inc.
5*2fe8fb19SBen Gras * All rights reserved.
6*2fe8fb19SBen Gras *
7*2fe8fb19SBen Gras * This code is derived from software contributed to The NetBSD Foundation
8*2fe8fb19SBen Gras * by Christos Zoulas.
9*2fe8fb19SBen Gras *
10*2fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without
11*2fe8fb19SBen Gras * modification, are permitted provided that the following conditions
12*2fe8fb19SBen Gras * are met:
13*2fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright
14*2fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer.
15*2fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright
16*2fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer in the
17*2fe8fb19SBen Gras * documentation and/or other materials provided with the distribution.
18*2fe8fb19SBen Gras *
19*2fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20*2fe8fb19SBen Gras * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21*2fe8fb19SBen Gras * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22*2fe8fb19SBen Gras * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23*2fe8fb19SBen Gras * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24*2fe8fb19SBen Gras * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25*2fe8fb19SBen Gras * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26*2fe8fb19SBen Gras * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27*2fe8fb19SBen Gras * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28*2fe8fb19SBen Gras * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29*2fe8fb19SBen Gras * POSSIBILITY OF SUCH DAMAGE.
30*2fe8fb19SBen Gras */
31*2fe8fb19SBen Gras
32*2fe8fb19SBen Gras #include <sys/cdefs.h>
33*2fe8fb19SBen Gras #if defined(LIBC_SCCS) && !defined(lint)
34*2fe8fb19SBen Gras __RCSID("$NetBSD: res_state.c,v 1.8 2009/01/11 02:46:29 christos Exp $");
35*2fe8fb19SBen Gras #endif
36*2fe8fb19SBen Gras
37*2fe8fb19SBen Gras #include <sys/types.h>
38*2fe8fb19SBen Gras #include <arpa/inet.h>
39*2fe8fb19SBen Gras #include <arpa/nameser.h>
40*2fe8fb19SBen Gras #include <netdb.h>
41*2fe8fb19SBen Gras #include <resolv.h>
42*2fe8fb19SBen Gras
43*2fe8fb19SBen Gras struct __res_state _nres
44*2fe8fb19SBen Gras # if defined(__BIND_RES_TEXT)
45*2fe8fb19SBen Gras = { .retrans = RES_TIMEOUT, } /*%< Motorola, et al. */
46*2fe8fb19SBen Gras # endif
47*2fe8fb19SBen Gras ;
48*2fe8fb19SBen Gras
49*2fe8fb19SBen Gras res_state __res_get_state_nothread(void);
50*2fe8fb19SBen Gras void __res_put_state_nothread(res_state);
51*2fe8fb19SBen Gras
52*2fe8fb19SBen Gras #ifdef __weak_alias
__weak_alias(__res_get_state,__res_get_state_nothread)53*2fe8fb19SBen Gras __weak_alias(__res_get_state, __res_get_state_nothread)
54*2fe8fb19SBen Gras __weak_alias(__res_put_state, __res_put_state_nothread)
55*2fe8fb19SBen Gras /* Source compatibility; only for single threaded programs */
56*2fe8fb19SBen Gras __weak_alias(__res_state, __res_get_state_nothread)
57*2fe8fb19SBen Gras #endif
58*2fe8fb19SBen Gras
59*2fe8fb19SBen Gras res_state
60*2fe8fb19SBen Gras __res_get_state_nothread(void)
61*2fe8fb19SBen Gras {
62*2fe8fb19SBen Gras if ((_nres.options & RES_INIT) == 0 && res_ninit(&_nres) == -1) {
63*2fe8fb19SBen Gras h_errno = NETDB_INTERNAL;
64*2fe8fb19SBen Gras return NULL;
65*2fe8fb19SBen Gras }
66*2fe8fb19SBen Gras return &_nres;
67*2fe8fb19SBen Gras }
68*2fe8fb19SBen Gras
69*2fe8fb19SBen Gras void
70*2fe8fb19SBen Gras /*ARGSUSED*/
__res_put_state_nothread(res_state res)71*2fe8fb19SBen Gras __res_put_state_nothread(res_state res)
72*2fe8fb19SBen Gras {
73*2fe8fb19SBen Gras }
74