xref: /original-bsd/lib/libc/net/getnetbyname.c (revision 279692fa)
1 /*
2  * Copyright (c) 1983 Regents of the University of California.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms are permitted
6  * provided that the above copyright notice and this paragraph are
7  * duplicated in all such forms and that any documentation,
8  * advertising materials, and other materials related to such
9  * distribution and use acknowledge that the software was developed
10  * by the University of California, Berkeley.  The name of the
11  * University may not be used to endorse or promote products derived
12  * from this software without specific prior written permission.
13  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16  */
17 
18 #if defined(LIBC_SCCS) && !defined(lint)
19 static char sccsid[] = "@(#)getnetbyname.c	5.5 (Berkeley) 06/27/88";
20 #endif /* LIBC_SCCS and not lint */
21 
22 #include <netdb.h>
23 
24 extern int _net_stayopen;
25 
26 struct netent *
27 getnetbyname(name)
28 	register char *name;
29 {
30 	register struct netent *p;
31 	register char **cp;
32 
33 	setnetent(_net_stayopen);
34 	while (p = getnetent()) {
35 		if (strcmp(p->n_name, name) == 0)
36 			break;
37 		for (cp = p->n_aliases; *cp != 0; cp++)
38 			if (strcmp(*cp, name) == 0)
39 				goto found;
40 	}
41 found:
42 	if (!_net_stayopen)
43 		endnetent();
44 	return (p);
45 }
46