Import FreeBSD's libypclnt.
[dragonfly.git] / lib / libc / net / getservbyname.c
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1/*
2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
9917f064 13 * 3. Neither the name of the University nor the names of its contributors
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14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
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28 *
29 * @(#)getservbyname.c 8.1 (Berkeley) 6/4/93
076e5234 30 * $DragonFly: src/lib/libc/net/getservbyname.c,v 1.5 2005/11/13 02:04:47 swildner Exp $
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31 */
32
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33#include <netdb.h>
34#include <string.h>
35
36extern int _serv_stayopen;
37
38struct servent *
076e5234 39getservbyname(const char *name, const char *proto)
984263bc 40{
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41 struct servent *p;
42 char **cp;
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43
44#ifdef YP
45 extern char *___getservbyname_yp;
46 extern char *___getservbyproto_yp;
47
48 ___getservbyname_yp = (char *)name;
49 ___getservbyproto_yp = (char *)proto;
50#endif
51
52 setservent(_serv_stayopen);
53 while ( (p = getservent()) ) {
54 if (strcmp(name, p->s_name) == 0)
55 goto gotname;
56 for (cp = p->s_aliases; *cp; cp++)
57 if (strcmp(name, *cp) == 0)
58 goto gotname;
59 continue;
60gotname:
61 if (proto == 0 || strcmp(p->s_proto, proto) == 0)
62 break;
63 }
64 if (!_serv_stayopen)
65 endservent();
66
67#ifdef YP
68 ___getservbyname_yp = NULL;
69 ___getservbyproto_yp = NULL;
70#endif
71
72 return (p);
73}