xref: /haiku/src/system/libnetwork/netresolv/net/getprotobyname_r.c (revision e1c4049fed1047bdb957b0529e1921e97ef94770)
1 /*	$NetBSD: getprotobyname_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[] = "@(#)getprotoname.c	8.1 (Berkeley) 6/4/93";
36 #else
37 __RCSID("$NetBSD: getprotobyname_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 
43 #include <assert.h>
44 #include <netdb.h>
45 #include <string.h>
46 
47 #include "protoent.h"
48 
49 #ifdef __weak_alias
50 __weak_alias(getprotobyname_r,_getprotobyname_r)
51 #endif
52 
53 struct protoent *
54 getprotobyname_r(const char *name, struct protoent *pr,
55     struct protoent_data *pd)
56 {
57 	struct protoent *p;
58 	char **cp;
59 
60 	_DIAGASSERT(name != NULL);
61 
62 	setprotoent_r(pd->stayopen, pd);
63 	while ((p = getprotoent_r(pr, pd)) != NULL) {
64 		if (strcmp(p->p_name, name) == 0)
65 			break;
66 		for (cp = p->p_aliases; *cp != NULL; cp++)
67 			if (strcmp(*cp, name) == 0)
68 				goto found;
69 	}
70 found:
71 	if (!pd->stayopen)
72 		if (pd->fp != NULL) {
73 			(void)fclose(pd->fp);
74 			pd->fp = NULL;
75 		}
76 	return p;
77 }
78