1*06201dd4Sguenther /* $OpenBSD: getprotoname.c,v 1.8 2015/09/14 07:38:38 guenther Exp $ */
2df930be7Sderaadt /*
3df930be7Sderaadt * Copyright (c) 1983, 1993
4df930be7Sderaadt * The Regents of the University of California. All rights reserved.
5df930be7Sderaadt *
6df930be7Sderaadt * Redistribution and use in source and binary forms, with or without
7df930be7Sderaadt * modification, are permitted provided that the following conditions
8df930be7Sderaadt * are met:
9df930be7Sderaadt * 1. Redistributions of source code must retain the above copyright
10df930be7Sderaadt * notice, this list of conditions and the following disclaimer.
11df930be7Sderaadt * 2. Redistributions in binary form must reproduce the above copyright
12df930be7Sderaadt * notice, this list of conditions and the following disclaimer in the
13df930be7Sderaadt * documentation and/or other materials provided with the distribution.
146580fee3Smillert * 3. Neither the name of the University nor the names of its contributors
15df930be7Sderaadt * may be used to endorse or promote products derived from this software
16df930be7Sderaadt * without specific prior written permission.
17df930be7Sderaadt *
18df930be7Sderaadt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19df930be7Sderaadt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20df930be7Sderaadt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21df930be7Sderaadt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22df930be7Sderaadt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23df930be7Sderaadt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24df930be7Sderaadt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25df930be7Sderaadt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26df930be7Sderaadt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27df930be7Sderaadt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28df930be7Sderaadt * SUCH DAMAGE.
29df930be7Sderaadt */
30df930be7Sderaadt
31df930be7Sderaadt #include <netdb.h>
3271a18e7fSmillert #include <stdio.h>
33df930be7Sderaadt #include <string.h>
34df930be7Sderaadt
35e3a1e9bfSmillert int
getprotobyname_r(const char * name,struct protoent * pe,struct protoent_data * pd)3671a18e7fSmillert getprotobyname_r(const char *name, struct protoent *pe,
3771a18e7fSmillert struct protoent_data *pd)
38df930be7Sderaadt {
3971a18e7fSmillert char **cp;
40e3a1e9bfSmillert int error;
41df930be7Sderaadt
4271a18e7fSmillert setprotoent_r(pd->stayopen, pd);
43e3a1e9bfSmillert while ((error = getprotoent_r(pe, pd)) == 0) {
44e3a1e9bfSmillert if (strcmp(pe->p_name, name) == 0)
45df930be7Sderaadt break;
46e3a1e9bfSmillert for (cp = pe->p_aliases; *cp != 0; cp++)
47df930be7Sderaadt if (strcmp(*cp, name) == 0)
48df930be7Sderaadt goto found;
49df930be7Sderaadt }
50df930be7Sderaadt found:
5171a18e7fSmillert if (!pd->stayopen && pd->fp != NULL) {
5271a18e7fSmillert fclose(pd->fp);
5371a18e7fSmillert pd->fp = NULL;
5471a18e7fSmillert }
55e3a1e9bfSmillert return (error);
56df930be7Sderaadt }
57*06201dd4Sguenther DEF_WEAK(getprotobyname_r);
5871a18e7fSmillert
5971a18e7fSmillert struct protoent *
getprotobyname(const char * name)6071a18e7fSmillert getprotobyname(const char *name)
6171a18e7fSmillert {
6271a18e7fSmillert extern struct protoent_data _protoent_data;
6371a18e7fSmillert static struct protoent proto;
6471a18e7fSmillert
65e3a1e9bfSmillert if (getprotobyname_r(name, &proto, &_protoent_data) != 0)
66e3a1e9bfSmillert return (NULL);
67e3a1e9bfSmillert return (&proto);
6871a18e7fSmillert }
69*06201dd4Sguenther DEF_WEAK(getprotobyname);
70