1/*	$NetBSD: getprotoent.c,v 1.11 2005/04/18 19:39:45 kleink 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 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31#include <sys/cdefs.h>
32
33#if defined(LIBC_SCCS) && !defined(lint)
34__RCSID("$NetBSD: getprotoent.c,v 1.11 2005/04/18 19:39:45 kleink Exp $");
35#endif /* LIBC_SCCS and not lint */
36
37#include "namespace.h"
38#include "reentrant.h"
39
40#include <netdb.h>
41
42#include "protoent.h"
43
44#ifdef __weak_alias
45__weak_alias(endprotoent,_endprotoent)
46__weak_alias(getprotoent,_getprotoent)
47__weak_alias(setprotoent,_setprotoent)
48#endif
49
50#ifdef _REENTRANT
51mutex_t _protoent_mutex = MUTEX_INITIALIZER;
52#endif
53struct protoent_data _protoent_data;
54
55void
56setprotoent(int f)
57{
58	mutex_lock(&_protoent_mutex);
59	setprotoent_r(f, &_protoent_data);
60	mutex_unlock(&_protoent_mutex);
61}
62
63void
64endprotoent(void)
65{
66	mutex_lock(&_protoent_mutex);
67	endprotoent_r(&_protoent_data);
68	mutex_unlock(&_protoent_mutex);
69}
70
71struct protoent *
72getprotoent(void)
73{
74	struct protoent *p;
75
76	mutex_lock(&_protoent_mutex);
77	p = getprotoent_r(&_protoent_data.proto, &_protoent_data);
78	mutex_unlock(&_protoent_mutex);
79	return (p);
80}
81