1/*	$NetBSD: getprotoent.c,v 1.12 2008/04/28 20:23:00 martin 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 1.12 2008/04/28 20:23:00 martin Exp $");
35#endif /* LIBC_SCCS and not lint */
36
37#include <netdb.h>
38#include <pthread.h>
39
40#include "protoent.h"
41
42#ifdef __weak_alias
43__weak_alias(endprotoent,_endprotoent)
44__weak_alias(getprotoent,_getprotoent)
45__weak_alias(setprotoent,_setprotoent)
46#endif
47
48#ifdef _REENTRANT
49pthread_mutex_t _protoent_mutex = PTHREAD_MUTEX_INITIALIZER;
50#endif
51struct protoent_data _protoent_data;
52
53void
54setprotoent(int f)
55{
56	pthread_mutex_lock(&_protoent_mutex);
57	setprotoent_r(f, &_protoent_data);
58	pthread_mutex_unlock(&_protoent_mutex);
59}
60
61void
62endprotoent(void)
63{
64	pthread_mutex_lock(&_protoent_mutex);
65	endprotoent_r(&_protoent_data);
66	pthread_mutex_unlock(&_protoent_mutex);
67}
68
69struct protoent *
70getprotoent(void)
71{
72	struct protoent *p;
73
74	pthread_mutex_lock(&_protoent_mutex);
75	p = getprotoent_r(&_protoent_data.proto, &_protoent_data);
76	pthread_mutex_unlock(&_protoent_mutex);
77	return (p);
78}
79