/*      $NetBSD: getprotobyname_r.c,v 1.3 2005/04/18 19:39:45 kleink Exp $      */

/*
* Copyright (c) 1983, 1993
*      The Regents of the University of California.  All rights reserved.
*
* 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.
* 3. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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)
#if 0
static char sccsid[] = "@(#)getprotoname.c      8.1 (Berkeley) 6/4/93";
#else
__RCSID("$NetBSD: getprotobyname_r.c,v 1.3 2005/04/18 19:39:45 kleink Exp $");
#endif
#endif /* LIBC_SCCS and not lint */

#include "namespace.h"

#include <assert.h>
#include <netdb.h>
#include <string.h>

#include "protoent.h"

#ifdef __weak_alias
__weak_alias(getprotobyname_r,_getprotobyname_r)
#endif

struct protoent *
getprotobyname_r(const char *name, struct protoent *pr,
   struct protoent_data *pd)
{
       struct protoent *p;
       char **cp;

       _DIAGASSERT(name != NULL);

       setprotoent_r(pd->stayopen, pd);
       while ((p = getprotoent_r(pr, pd)) != NULL) {
               if (strcmp(p->p_name, name) == 0)
                       break;
               for (cp = p->p_aliases; *cp != NULL; cp++)
                       if (strcmp(*cp, name) == 0)
                               goto found;
       }
found:
       if (!pd->stayopen)
               if (pd->fp != NULL) {
                       (void)fclose(pd->fp);
                       pd->fp = NULL;
               }
       return p;
}