xref: /haiku/src/system/libnetwork/netresolv/net/getprotobyname.c (revision e1c4049fed1047bdb957b0529e1921e97ef94770)
1 /*	$NetBSD: getprotobyname.c,v 1.4 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 #if defined(LIBC_SCCS) && !defined(lint)
33 __RCSID("$NetBSD: getprotobyname.c,v 1.4 2008/04/28 20:23:00 martin Exp $");
34 #endif /* LIBC_SCCS and not lint */
35 
36 #include <pthread.h>
37 #include <netdb.h>
38 
39 #include "protoent.h"
40 
41 #ifdef __weak_alias
42 __weak_alias(getprotobyname,_getprotobyname)
43 #endif
44 
45 #ifdef _REENTRANT
46 extern pthread_mutex_t _protoent_mutex;
47 #endif
48 extern struct protoent_data _protoent_data;
49 
50 struct protoent *
51 getprotobyname(const char *name)
52 {
53 	struct protoent *p;
54 
55 	pthread_mutex_lock(&_protoent_mutex);
56 	p = getprotobyname_r(name, &_protoent_data.proto, &_protoent_data);
57 	pthread_mutex_unlock(&_protoent_mutex);
58 	return (p);
59 }
60