uclibc-ng/libc/inet/getnetbynm.c

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by the University of California, Berkeley.  The name of the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#define __FORCE_GLIBC
#include <features.h>
#include <netdb.h>
#include <string.h>

libc_hidden_proto(strcmp)
libc_hidden_proto(setnetent)
libc_hidden_proto(getnetent)
libc_hidden_proto(endnetent)

extern int _net_stayopen attribute_hidden;

struct netent *
getnetbyname(const char *name)
{
	register struct netent *p;
	register char **cp;

	setnetent(_net_stayopen);
	while ((p = getnetent())) {
		if (strcmp(p->n_name, name) == 0)
			break;
		for (cp = p->n_aliases; *cp != 0; cp++)
			if (strcmp(*cp, name) == 0)
				goto found;
	}
found:
	if (!_net_stayopen)
		endnetent();
	return (p);
}