1 /* $NetBSD: getprotobynumber_r.c,v 1.3 2005/04/18 19:39:45 kleink Exp $ */
2
3 /*
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 #include <sys/cdefs.h>
33 #if defined(LIBC_SCCS) && !defined(lint)
34 #if 0
35 static char sccsid[] = "@(#)getproto.c 8.1 (Berkeley) 6/4/93";
36 #else
37 __RCSID("$NetBSD: getprotobynumber_r.c,v 1.3 2005/04/18 19:39:45 kleink Exp $");
38 #endif
39 #endif /* LIBC_SCCS and not lint */
40
41 #include "namespace.h"
42 #include <netdb.h>
43 #include <stddef.h>
44
45 #include "protoent.h"
46
47 #ifdef __weak_alias
__weak_alias(getprotobynumber_r,_getprotobynumber_r)48 __weak_alias(getprotobynumber_r,_getprotobynumber_r)
49 #endif
50
51 struct protoent *
52 getprotobynumber_r(int proto, struct protoent *pr, struct protoent_data *pd)
53 {
54 struct protoent *p;
55
56 setprotoent_r(pd->stayopen, pd);
57 while ((p = getprotoent_r(pr, pd)) != NULL)
58 if (p->p_proto == proto)
59 break;
60 if (!pd->stayopen)
61 if (pd->fp != NULL) {
62 (void)fclose(pd->fp);
63 pd->fp = NULL;
64 }
65 return p;
66 }
67