sethostent.c

来自「minix操作系统最新版本（3.1.1）的源代码」· C语言 代码 · 共 85 行

/*	$OpenBSD: sethostent.c,v 1.1 1997/03/12 10:42:11 downsj Exp $	*/

/*
 * Copyright (c) 1985, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#if defined(LIBC_SCCS) && !defined(lint)
#if 0
static char sccsid[] = "@(#)sethostent.c	8.1 (Berkeley) 6/4/93";
static char rcsid[] = "$From: sethostent.c,v 8.5 1996/09/28 06:51:07 vixie Exp $";
#else
static char rcsid[] = "$OpenBSD: sethostent.c,v 1.1 1997/03/12 10:42:11 downsj Exp $";
#endif
#endif /* LIBC_SCCS and not lint */

#ifdef notyet
#include <sys/types.h>
#include <sys/param.h>
#include <netinet/in.h>
#include <arpa/nameser.h>
#include <netdb.h>
#include <resolv.h>
#else
#include <sys/types.h>
#include <net/gen/in.h>
#include <net/gen/nameser.h>
#include <net/gen/netdb.h>
#include <net/gen/resolv.h>
#endif

void
sethostent(stayopen)
	int stayopen;
{
	if ((_res.options & RES_INIT) == 0 && res_init() == -1)
		return;
	if (stayopen)
	{
		_res.options |= RES_STAYOPEN;
#ifdef __minix_vmd
		_res.options |= RES_USEVC;
#endif
	}
}

void
endhostent()
{
	_res.options &= ~(RES_STAYOPEN | RES_USEVC);
	_res_close();
}

/*
 * $PchId: sethostent.c,v 1.2 2000/04/01 18:27:16 philip Exp $
 */