/*      $NetBSD: getprotoent.c,v 1.12 2008/04/28 20:23:00 martin Exp $  */

/*-
* Copyright (c) 2004 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>

#if defined(LIBC_SCCS) && !defined(lint)
__RCSID("$NetBSD: getprotoent.c,v 1.12 2008/04/28 20:23:00 martin Exp $");
#endif /* LIBC_SCCS and not lint */

#include "namespace.h"
#include "reentrant.h"

#include <netdb.h>

#include "protoent.h"

#ifdef __weak_alias
__weak_alias(endprotoent,_endprotoent)
__weak_alias(getprotoent,_getprotoent)
__weak_alias(setprotoent,_setprotoent)
#endif

#ifdef _REENTRANT
mutex_t _protoent_mutex = MUTEX_INITIALIZER;
#endif
struct protoent_data _protoent_data;

void
setprotoent(int f)
{
       mutex_lock(&_protoent_mutex);
       setprotoent_r(f, &_protoent_data);
       mutex_unlock(&_protoent_mutex);
}

void
endprotoent(void)
{
       mutex_lock(&_protoent_mutex);
       endprotoent_r(&_protoent_data);
       mutex_unlock(&_protoent_mutex);
}

struct protoent *
getprotoent(void)
{
       struct protoent *p;

       mutex_lock(&_protoent_mutex);
       p = getprotoent_r(&_protoent_data.proto, &_protoent_data);
       mutex_unlock(&_protoent_mutex);
       return (p);
}