1 /* $NetBSD: sethostent.c,v 1.11 2000/01/22 22:19:16 mycroft Exp $ */ 2 3 /* 4 * Copyright (c) 1985, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36 #include <sys/cdefs.h> 37 #if defined(LIBC_SCCS) && !defined(lint) 38 #if 0 39 static char sccsid[] = "@(#)sethostent.c 8.1 (Berkeley) 6/4/93"; 40 static char rcsid[] = "Id: sethostent.c,v 8.5 1996/09/28 06:51:07 vixie Exp "; 41 #else 42 __RCSID("$NetBSD: sethostent.c,v 1.11 2000/01/22 22:19:16 mycroft Exp $"); 43 #endif 44 #endif /* LIBC_SCCS and not lint */ 45 46 #include "namespace.h" 47 #include <sys/param.h> 48 #include <netinet/in.h> 49 #include <arpa/nameser.h> 50 #include <netdb.h> 51 #include <resolv.h> 52 53 #ifdef __weak_alias 54 __weak_alias(sethostent,_sethostent) 55 __weak_alias(endhostent,_endhostent) 56 #endif 57 58 void _res_close __P((void)); 59 60 void 61 sethostent(stayopen) 62 int stayopen; 63 { 64 65 if ((_res.options & RES_INIT) == 0 && res_init() == -1) 66 return; 67 if (stayopen) 68 _res.options |= RES_STAYOPEN | RES_USEVC; 69 } 70 71 void 72 endhostent() 73 { 74 _res.options &= ~(RES_STAYOPEN | RES_USEVC); 75 res_close(); 76 } 77