xref: /freebsd/lib/libc/resolv/res_init.c (revision 32223c1b7dea9bcf5ccb35a6462fb6a29a344910)
165e96449SHajimu UMEMOTO /*
265e96449SHajimu UMEMOTO  * Copyright (c) 1985, 1989, 1993
365e96449SHajimu UMEMOTO  *    The Regents of the University of California.  All rights reserved.
465e96449SHajimu UMEMOTO  *
565e96449SHajimu UMEMOTO  * Redistribution and use in source and binary forms, with or without
665e96449SHajimu UMEMOTO  * modification, are permitted provided that the following conditions
765e96449SHajimu UMEMOTO  * are met:
865e96449SHajimu UMEMOTO  * 1. Redistributions of source code must retain the above copyright
965e96449SHajimu UMEMOTO  *    notice, this list of conditions and the following disclaimer.
1065e96449SHajimu UMEMOTO  * 2. Redistributions in binary form must reproduce the above copyright
1165e96449SHajimu UMEMOTO  *    notice, this list of conditions and the following disclaimer in the
1265e96449SHajimu UMEMOTO  *    documentation and/or other materials provided with the distribution.
1365e96449SHajimu UMEMOTO  * 4. Neither the name of the University nor the names of its contributors
1465e96449SHajimu UMEMOTO  *    may be used to endorse or promote products derived from this software
1565e96449SHajimu UMEMOTO  *    without specific prior written permission.
1665e96449SHajimu UMEMOTO  *
1765e96449SHajimu UMEMOTO  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
1865e96449SHajimu UMEMOTO  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1965e96449SHajimu UMEMOTO  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
2065e96449SHajimu UMEMOTO  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
2165e96449SHajimu UMEMOTO  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
2265e96449SHajimu UMEMOTO  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
2365e96449SHajimu UMEMOTO  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
2465e96449SHajimu UMEMOTO  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
2565e96449SHajimu UMEMOTO  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
2665e96449SHajimu UMEMOTO  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
2765e96449SHajimu UMEMOTO  * SUCH DAMAGE.
2865e96449SHajimu UMEMOTO  */
2965e96449SHajimu UMEMOTO 
3065e96449SHajimu UMEMOTO /*
3165e96449SHajimu UMEMOTO  * Portions Copyright (c) 1993 by Digital Equipment Corporation.
3265e96449SHajimu UMEMOTO  *
3365e96449SHajimu UMEMOTO  * Permission to use, copy, modify, and distribute this software for any
3465e96449SHajimu UMEMOTO  * purpose with or without fee is hereby granted, provided that the above
3565e96449SHajimu UMEMOTO  * copyright notice and this permission notice appear in all copies, and that
3665e96449SHajimu UMEMOTO  * the name of Digital Equipment Corporation not be used in advertising or
3765e96449SHajimu UMEMOTO  * publicity pertaining to distribution of the document or software without
3865e96449SHajimu UMEMOTO  * specific, written prior permission.
3965e96449SHajimu UMEMOTO  *
4065e96449SHajimu UMEMOTO  * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
4165e96449SHajimu UMEMOTO  * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
4265e96449SHajimu UMEMOTO  * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
4365e96449SHajimu UMEMOTO  * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
4465e96449SHajimu UMEMOTO  * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
4565e96449SHajimu UMEMOTO  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
4665e96449SHajimu UMEMOTO  * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
4765e96449SHajimu UMEMOTO  * SOFTWARE.
4865e96449SHajimu UMEMOTO  */
4965e96449SHajimu UMEMOTO 
5065e96449SHajimu UMEMOTO /*
5165e96449SHajimu UMEMOTO  * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
5265e96449SHajimu UMEMOTO  * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
5365e96449SHajimu UMEMOTO  *
5465e96449SHajimu UMEMOTO  * Permission to use, copy, modify, and distribute this software for any
5565e96449SHajimu UMEMOTO  * purpose with or without fee is hereby granted, provided that the above
5665e96449SHajimu UMEMOTO  * copyright notice and this permission notice appear in all copies.
5765e96449SHajimu UMEMOTO  *
5865e96449SHajimu UMEMOTO  * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
5965e96449SHajimu UMEMOTO  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
6065e96449SHajimu UMEMOTO  * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
6165e96449SHajimu UMEMOTO  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
6265e96449SHajimu UMEMOTO  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
6365e96449SHajimu UMEMOTO  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
6465e96449SHajimu UMEMOTO  * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
6565e96449SHajimu UMEMOTO  */
6665e96449SHajimu UMEMOTO 
6765e96449SHajimu UMEMOTO #if defined(LIBC_SCCS) && !defined(lint)
6865e96449SHajimu UMEMOTO static const char sccsid[] = "@(#)res_init.c	8.1 (Berkeley) 6/7/93";
69046c3635SPedro F. Giffuni static const char rcsid[] = "$Id: res_init.c,v 1.26 2008/12/11 09:59:00 marka Exp $";
7065e96449SHajimu UMEMOTO #endif /* LIBC_SCCS and not lint */
71ab96eeabSHajimu UMEMOTO #include <sys/cdefs.h>
72ab96eeabSHajimu UMEMOTO __FBSDID("$FreeBSD$");
7365e96449SHajimu UMEMOTO 
7465e96449SHajimu UMEMOTO #include "port_before.h"
7565e96449SHajimu UMEMOTO 
76500fe2a1SHajimu UMEMOTO #include "namespace.h"
77500fe2a1SHajimu UMEMOTO 
7865e96449SHajimu UMEMOTO #include <sys/param.h>
7965e96449SHajimu UMEMOTO #include <sys/socket.h>
8060b27ebbSEric van Gyzen #include <sys/stat.h>
8165e96449SHajimu UMEMOTO #include <sys/time.h>
8265e96449SHajimu UMEMOTO 
8365e96449SHajimu UMEMOTO #include <netinet/in.h>
8465e96449SHajimu UMEMOTO #include <arpa/inet.h>
8565e96449SHajimu UMEMOTO #include <arpa/nameser.h>
8665e96449SHajimu UMEMOTO 
8765e96449SHajimu UMEMOTO #include <ctype.h>
8865e96449SHajimu UMEMOTO #include <stdio.h>
8965e96449SHajimu UMEMOTO #include <stdlib.h>
9065e96449SHajimu UMEMOTO #include <string.h>
9165e96449SHajimu UMEMOTO #include <unistd.h>
9265e96449SHajimu UMEMOTO #include <netdb.h>
9365e96449SHajimu UMEMOTO 
94046c3635SPedro F. Giffuni #ifndef HAVE_MD5
95046c3635SPedro F. Giffuni # include "../dst/md5.h"
96046c3635SPedro F. Giffuni #else
97046c3635SPedro F. Giffuni # ifdef SOLARIS2
98046c3635SPedro F. Giffuni #  include <sys/md5.h>
99e4576472SHajimu UMEMOTO # elif _LIBC
100e4576472SHajimu UMEMOTO # include <md5.h>
101046c3635SPedro F. Giffuni # endif
102046c3635SPedro F. Giffuni #endif
103046c3635SPedro F. Giffuni #ifndef _MD5_H_
104046c3635SPedro F. Giffuni # define _MD5_H_ 1	/*%< make sure we do not include rsaref md5.h file */
105046c3635SPedro F. Giffuni #endif
106046c3635SPedro F. Giffuni 
107500fe2a1SHajimu UMEMOTO #include "un-namespace.h"
108500fe2a1SHajimu UMEMOTO 
10965e96449SHajimu UMEMOTO #include "port_after.h"
11065e96449SHajimu UMEMOTO 
11165e96449SHajimu UMEMOTO /* ensure that sockaddr_in6 and IN6ADDR_ANY_INIT are declared / defined */
11265e96449SHajimu UMEMOTO #include <resolv.h>
11365e96449SHajimu UMEMOTO 
11465e96449SHajimu UMEMOTO #include "res_private.h"
11565e96449SHajimu UMEMOTO 
116dde4a85dSHajimu UMEMOTO /*% Options.  Should all be left alone. */
11765e96449SHajimu UMEMOTO #define RESOLVSORT
1188a615d0fSEnji Cooper #ifndef	DEBUG
11965e96449SHajimu UMEMOTO #define	DEBUG
1208a615d0fSEnji Cooper #endif
12165e96449SHajimu UMEMOTO 
12265e96449SHajimu UMEMOTO #ifdef SOLARIS2
12365e96449SHajimu UMEMOTO #include <sys/systeminfo.h>
12465e96449SHajimu UMEMOTO #endif
12565e96449SHajimu UMEMOTO 
126ab96eeabSHajimu UMEMOTO static void res_setoptions(res_state, const char *, const char *);
12765e96449SHajimu UMEMOTO 
12865e96449SHajimu UMEMOTO #ifdef RESOLVSORT
12965e96449SHajimu UMEMOTO static const char sort_mask[] = "/&";
13065e96449SHajimu UMEMOTO #define ISSORTMASK(ch) (strchr(sort_mask, ch) != NULL)
131ab96eeabSHajimu UMEMOTO static u_int32_t net_mask(struct in_addr);
13265e96449SHajimu UMEMOTO #endif
13365e96449SHajimu UMEMOTO 
134dde4a85dSHajimu UMEMOTO #if !defined(isascii)	/*%< XXX - could be a function */
13565e96449SHajimu UMEMOTO # define isascii(c) (!(c & 0200))
13665e96449SHajimu UMEMOTO #endif
13765e96449SHajimu UMEMOTO 
13865e96449SHajimu UMEMOTO /*
13965e96449SHajimu UMEMOTO  * Resolver state default settings.
14065e96449SHajimu UMEMOTO  */
14165e96449SHajimu UMEMOTO 
142dde4a85dSHajimu UMEMOTO /*%
14365e96449SHajimu UMEMOTO  * Set up default settings.  If the configuration file exist, the values
14465e96449SHajimu UMEMOTO  * there will have precedence.  Otherwise, the server address is set to
14565e96449SHajimu UMEMOTO  * INADDR_ANY and the default domain name comes from the gethostname().
14665e96449SHajimu UMEMOTO  *
147*32223c1bSPedro F. Giffuni  * An interim version of this code (BIND 4.9, pre-4.4BSD) used 127.0.0.1
14865e96449SHajimu UMEMOTO  * rather than INADDR_ANY ("0.0.0.0") as the default name server address
14965e96449SHajimu UMEMOTO  * since it was noted that INADDR_ANY actually meant ``the first interface
15065e96449SHajimu UMEMOTO  * you "ifconfig"'d at boot time'' and if this was a SLIP or PPP interface,
15165e96449SHajimu UMEMOTO  * it had to be "up" in order for you to reach your own name server.  It
15265e96449SHajimu UMEMOTO  * was later decided that since the recommended practice is to always
15365e96449SHajimu UMEMOTO  * install local static routes through 127.0.0.1 for all your network
15465e96449SHajimu UMEMOTO  * interfaces, that we could solve this problem without a code change.
15565e96449SHajimu UMEMOTO  *
15665e96449SHajimu UMEMOTO  * The configuration file should always be used, since it is the only way
15765e96449SHajimu UMEMOTO  * to specify a default domain.  If you are running a server on your local
15865e96449SHajimu UMEMOTO  * machine, you should say "nameserver 0.0.0.0" or "nameserver 127.0.0.1"
15965e96449SHajimu UMEMOTO  * in the configuration file.
16065e96449SHajimu UMEMOTO  *
16165e96449SHajimu UMEMOTO  * Return 0 if completes successfully, -1 on error
16265e96449SHajimu UMEMOTO  */
16365e96449SHajimu UMEMOTO int
16465e96449SHajimu UMEMOTO res_ninit(res_state statp) {
16565e96449SHajimu UMEMOTO 	extern int __res_vinit(res_state, int);
16665e96449SHajimu UMEMOTO 
16765e96449SHajimu UMEMOTO 	return (__res_vinit(statp, 0));
16865e96449SHajimu UMEMOTO }
16965e96449SHajimu UMEMOTO 
170*32223c1bSPedro F. Giffuni /*% This function has to be reachable by res_data.c but not publicly. */
17165e96449SHajimu UMEMOTO int
17265e96449SHajimu UMEMOTO __res_vinit(res_state statp, int preinit) {
173ab96eeabSHajimu UMEMOTO 	FILE *fp;
174ab96eeabSHajimu UMEMOTO 	char *cp, **pp;
175ab96eeabSHajimu UMEMOTO 	int n;
17665e96449SHajimu UMEMOTO 	char buf[BUFSIZ];
177dde4a85dSHajimu UMEMOTO 	int nserv = 0;    /*%< number of nameserver records read from file */
17865e96449SHajimu UMEMOTO 	int haveenv = 0;
17965e96449SHajimu UMEMOTO 	int havesearch = 0;
18065e96449SHajimu UMEMOTO #ifdef RESOLVSORT
18165e96449SHajimu UMEMOTO 	int nsort = 0;
18265e96449SHajimu UMEMOTO 	char *net;
18365e96449SHajimu UMEMOTO #endif
18465e96449SHajimu UMEMOTO 	int dots;
18565e96449SHajimu UMEMOTO 	union res_sockaddr_union u[2];
186d069c2b7SHajimu UMEMOTO 	int maxns = MAXNS;
18765e96449SHajimu UMEMOTO 
188d069c2b7SHajimu UMEMOTO 	RES_SET_H_ERRNO(statp, 0);
18965e96449SHajimu UMEMOTO 	if (statp->_u._ext.ext != NULL)
19065e96449SHajimu UMEMOTO 		res_ndestroy(statp);
19165e96449SHajimu UMEMOTO 
19265e96449SHajimu UMEMOTO 	if (!preinit) {
19365e96449SHajimu UMEMOTO 		statp->retrans = RES_TIMEOUT;
19465e96449SHajimu UMEMOTO 		statp->retry = RES_DFLRETRY;
19565e96449SHajimu UMEMOTO 		statp->options = RES_DEFAULT;
19665e96449SHajimu UMEMOTO 	}
19765e96449SHajimu UMEMOTO 
198e4576472SHajimu UMEMOTO 	statp->_rnd = malloc(16);
199046c3635SPedro F. Giffuni 	res_rndinit(statp);
200046c3635SPedro F. Giffuni 	statp->id = res_nrandomid(statp);
20165e96449SHajimu UMEMOTO 
20265e96449SHajimu UMEMOTO 	memset(u, 0, sizeof(u));
20365e96449SHajimu UMEMOTO #ifdef USELOOPBACK
20465e96449SHajimu UMEMOTO 	u[nserv].sin.sin_addr = inet_makeaddr(IN_LOOPBACKNET, 1);
20565e96449SHajimu UMEMOTO #else
20665e96449SHajimu UMEMOTO 	u[nserv].sin.sin_addr.s_addr = INADDR_ANY;
20765e96449SHajimu UMEMOTO #endif
20865e96449SHajimu UMEMOTO 	u[nserv].sin.sin_family = AF_INET;
20965e96449SHajimu UMEMOTO 	u[nserv].sin.sin_port = htons(NAMESERVER_PORT);
21065e96449SHajimu UMEMOTO #ifdef HAVE_SA_LEN
21165e96449SHajimu UMEMOTO 	u[nserv].sin.sin_len = sizeof(struct sockaddr_in);
21265e96449SHajimu UMEMOTO #endif
21365e96449SHajimu UMEMOTO 	nserv++;
21465e96449SHajimu UMEMOTO #ifdef HAS_INET6_STRUCTS
21565e96449SHajimu UMEMOTO #ifdef USELOOPBACK
21665e96449SHajimu UMEMOTO 	u[nserv].sin6.sin6_addr = in6addr_loopback;
21765e96449SHajimu UMEMOTO #else
21865e96449SHajimu UMEMOTO 	u[nserv].sin6.sin6_addr = in6addr_any;
21965e96449SHajimu UMEMOTO #endif
22065e96449SHajimu UMEMOTO 	u[nserv].sin6.sin6_family = AF_INET6;
22165e96449SHajimu UMEMOTO 	u[nserv].sin6.sin6_port = htons(NAMESERVER_PORT);
22265e96449SHajimu UMEMOTO #ifdef HAVE_SA_LEN
22365e96449SHajimu UMEMOTO 	u[nserv].sin6.sin6_len = sizeof(struct sockaddr_in6);
22465e96449SHajimu UMEMOTO #endif
22565e96449SHajimu UMEMOTO 	nserv++;
22665e96449SHajimu UMEMOTO #endif
22765e96449SHajimu UMEMOTO 	statp->nscount = 0;
22865e96449SHajimu UMEMOTO 	statp->ndots = 1;
22965e96449SHajimu UMEMOTO 	statp->pfcode = 0;
23065e96449SHajimu UMEMOTO 	statp->_vcsock = -1;
23165e96449SHajimu UMEMOTO 	statp->_flags = 0;
23265e96449SHajimu UMEMOTO 	statp->qhook = NULL;
23365e96449SHajimu UMEMOTO 	statp->rhook = NULL;
23465e96449SHajimu UMEMOTO 	statp->_u._ext.nscount = 0;
23565e96449SHajimu UMEMOTO 	statp->_u._ext.ext = malloc(sizeof(*statp->_u._ext.ext));
23665e96449SHajimu UMEMOTO 	if (statp->_u._ext.ext != NULL) {
23765e96449SHajimu UMEMOTO 	        memset(statp->_u._ext.ext, 0, sizeof(*statp->_u._ext.ext));
23865e96449SHajimu UMEMOTO 		statp->_u._ext.ext->nsaddrs[0].sin = statp->nsaddr;
23965e96449SHajimu UMEMOTO 		strcpy(statp->_u._ext.ext->nsuffix, "ip6.arpa");
24065e96449SHajimu UMEMOTO 		strcpy(statp->_u._ext.ext->nsuffix2, "ip6.int");
241c70540ecSEric van Gyzen 		statp->_u._ext.ext->reload_period = 2;
242d069c2b7SHajimu UMEMOTO 	} else {
243d069c2b7SHajimu UMEMOTO 		/*
244d069c2b7SHajimu UMEMOTO 		 * Historically res_init() rarely, if at all, failed.
245d069c2b7SHajimu UMEMOTO 		 * Examples and applications exist which do not check
246d069c2b7SHajimu UMEMOTO 		 * our return code.  Furthermore several applications
247d069c2b7SHajimu UMEMOTO 		 * simply call us to get the systems domainname.  So
248d069c2b7SHajimu UMEMOTO 		 * rather then immediately fail here we store the
249d069c2b7SHajimu UMEMOTO 		 * failure, which is returned later, in h_errno.  And
250d069c2b7SHajimu UMEMOTO 		 * prevent the collection of 'nameserver' information
251d069c2b7SHajimu UMEMOTO 		 * by setting maxns to 0.  Thus applications that fail
252d069c2b7SHajimu UMEMOTO 		 * to check our return code wont be able to make
253d069c2b7SHajimu UMEMOTO 		 * queries anyhow.
254d069c2b7SHajimu UMEMOTO 		 */
255d069c2b7SHajimu UMEMOTO 		RES_SET_H_ERRNO(statp, NETDB_INTERNAL);
256d069c2b7SHajimu UMEMOTO 		maxns = 0;
257d069c2b7SHajimu UMEMOTO 	}
25865e96449SHajimu UMEMOTO #ifdef RESOLVSORT
25965e96449SHajimu UMEMOTO 	statp->nsort = 0;
26065e96449SHajimu UMEMOTO #endif
26165e96449SHajimu UMEMOTO 	res_setservers(statp, u, nserv);
26265e96449SHajimu UMEMOTO 
26365e96449SHajimu UMEMOTO #ifdef	SOLARIS2
26465e96449SHajimu UMEMOTO 	/*
26565e96449SHajimu UMEMOTO 	 * The old libresolv derived the defaultdomain from NIS/NIS+.
26665e96449SHajimu UMEMOTO 	 * We want to keep this behaviour
26765e96449SHajimu UMEMOTO 	 */
26865e96449SHajimu UMEMOTO 	{
26965e96449SHajimu UMEMOTO 		char buf[sizeof(statp->defdname)], *cp;
27065e96449SHajimu UMEMOTO 		int ret;
27165e96449SHajimu UMEMOTO 
27265e96449SHajimu UMEMOTO 		if ((ret = sysinfo(SI_SRPC_DOMAIN, buf, sizeof(buf))) > 0 &&
27365e96449SHajimu UMEMOTO 			(unsigned int)ret <= sizeof(buf)) {
27465e96449SHajimu UMEMOTO 			if (buf[0] == '+')
27565e96449SHajimu UMEMOTO 				buf[0] = '.';
27665e96449SHajimu UMEMOTO 			cp = strchr(buf, '.');
2772cd19db2SHajimu UMEMOTO 			cp = (cp == NULL) ? buf : (cp + 1);
278d069c2b7SHajimu UMEMOTO 			strncpy(statp->defdname, cp,
279d069c2b7SHajimu UMEMOTO 				sizeof(statp->defdname) - 1);
280d069c2b7SHajimu UMEMOTO 			statp->defdname[sizeof(statp->defdname) - 1] = '\0';
28165e96449SHajimu UMEMOTO 		}
28265e96449SHajimu UMEMOTO 	}
28365e96449SHajimu UMEMOTO #endif	/* SOLARIS2 */
28465e96449SHajimu UMEMOTO 
28565e96449SHajimu UMEMOTO 	/* Allow user to override the local domain definition */
286ab96eeabSHajimu UMEMOTO 	if (issetugid() == 0 && (cp = getenv("LOCALDOMAIN")) != NULL) {
28765e96449SHajimu UMEMOTO 		(void)strncpy(statp->defdname, cp, sizeof(statp->defdname) - 1);
28865e96449SHajimu UMEMOTO 		statp->defdname[sizeof(statp->defdname) - 1] = '\0';
28965e96449SHajimu UMEMOTO 		haveenv++;
29065e96449SHajimu UMEMOTO 
29165e96449SHajimu UMEMOTO 		/*
29265e96449SHajimu UMEMOTO 		 * Set search list to be blank-separated strings
29365e96449SHajimu UMEMOTO 		 * from rest of env value.  Permits users of LOCALDOMAIN
29465e96449SHajimu UMEMOTO 		 * to still have a search list, and anyone to set the
29565e96449SHajimu UMEMOTO 		 * one that they want to use as an individual (even more
29665e96449SHajimu UMEMOTO 		 * important now that the rfc1535 stuff restricts searches)
29765e96449SHajimu UMEMOTO 		 */
29865e96449SHajimu UMEMOTO 		cp = statp->defdname;
29965e96449SHajimu UMEMOTO 		pp = statp->dnsrch;
30065e96449SHajimu UMEMOTO 		*pp++ = cp;
30165e96449SHajimu UMEMOTO 		for (n = 0; *cp && pp < statp->dnsrch + MAXDNSRCH; cp++) {
302dde4a85dSHajimu UMEMOTO 			if (*cp == '\n')	/*%< silly backwards compat */
30365e96449SHajimu UMEMOTO 				break;
30465e96449SHajimu UMEMOTO 			else if (*cp == ' ' || *cp == '\t') {
30565e96449SHajimu UMEMOTO 				*cp = 0;
30665e96449SHajimu UMEMOTO 				n = 1;
30765e96449SHajimu UMEMOTO 			} else if (n) {
30865e96449SHajimu UMEMOTO 				*pp++ = cp;
30965e96449SHajimu UMEMOTO 				n = 0;
31065e96449SHajimu UMEMOTO 				havesearch = 1;
31165e96449SHajimu UMEMOTO 			}
31265e96449SHajimu UMEMOTO 		}
31365e96449SHajimu UMEMOTO 		/* null terminate last domain if there are excess */
31465e96449SHajimu UMEMOTO 		while (*cp != '\0' && *cp != ' ' && *cp != '\t' && *cp != '\n')
31565e96449SHajimu UMEMOTO 			cp++;
31665e96449SHajimu UMEMOTO 		*cp = '\0';
317513004a2SPedro F. Giffuni 		*pp++ = NULL;
31865e96449SHajimu UMEMOTO 	}
31965e96449SHajimu UMEMOTO 
32065e96449SHajimu UMEMOTO #define	MATCH(line, name) \
32165e96449SHajimu UMEMOTO 	(!strncmp(line, name, sizeof(name) - 1) && \
32265e96449SHajimu UMEMOTO 	(line[sizeof(name) - 1] == ' ' || \
32365e96449SHajimu UMEMOTO 	 line[sizeof(name) - 1] == '\t'))
32465e96449SHajimu UMEMOTO 
32565e96449SHajimu UMEMOTO 	nserv = 0;
326a93705b0SJilles Tjoelker 	if ((fp = fopen(_PATH_RESCONF, "re")) != NULL) {
32760b27ebbSEric van Gyzen 	    struct stat sb;
32860b27ebbSEric van Gyzen 	    struct timespec now;
32960b27ebbSEric van Gyzen 
330c70540ecSEric van Gyzen 	    if (statp->_u._ext.ext != NULL) {
33160b27ebbSEric van Gyzen 		if (_fstat(fileno(fp), &sb) == 0) {
332c70540ecSEric van Gyzen 		    statp->_u._ext.ext->conf_mtim = sb.st_mtim;
33360b27ebbSEric van Gyzen 		    if (clock_gettime(CLOCK_MONOTONIC_FAST, &now) == 0) {
334c70540ecSEric van Gyzen 			statp->_u._ext.ext->conf_stat = now.tv_sec;
33560b27ebbSEric van Gyzen 		    }
336c70540ecSEric van Gyzen 		}
33760b27ebbSEric van Gyzen 	    }
33860b27ebbSEric van Gyzen 
33965e96449SHajimu UMEMOTO 	    /* read the config file */
34065e96449SHajimu UMEMOTO 	    while (fgets(buf, sizeof(buf), fp) != NULL) {
34165e96449SHajimu UMEMOTO 		/* skip comments */
34265e96449SHajimu UMEMOTO 		if (*buf == ';' || *buf == '#')
34365e96449SHajimu UMEMOTO 			continue;
34465e96449SHajimu UMEMOTO 		/* read default domain name */
34565e96449SHajimu UMEMOTO 		if (MATCH(buf, "domain")) {
346dde4a85dSHajimu UMEMOTO 		    if (haveenv)	/*%< skip if have from environ */
34765e96449SHajimu UMEMOTO 			    continue;
34865e96449SHajimu UMEMOTO 		    cp = buf + sizeof("domain") - 1;
34965e96449SHajimu UMEMOTO 		    while (*cp == ' ' || *cp == '\t')
35065e96449SHajimu UMEMOTO 			    cp++;
35165e96449SHajimu UMEMOTO 		    if ((*cp == '\0') || (*cp == '\n'))
35265e96449SHajimu UMEMOTO 			    continue;
35365e96449SHajimu UMEMOTO 		    strncpy(statp->defdname, cp, sizeof(statp->defdname) - 1);
35465e96449SHajimu UMEMOTO 		    statp->defdname[sizeof(statp->defdname) - 1] = '\0';
35565e96449SHajimu UMEMOTO 		    if ((cp = strpbrk(statp->defdname, " \t\n")) != NULL)
35665e96449SHajimu UMEMOTO 			    *cp = '\0';
35765e96449SHajimu UMEMOTO 		    havesearch = 0;
35865e96449SHajimu UMEMOTO 		    continue;
35965e96449SHajimu UMEMOTO 		}
36065e96449SHajimu UMEMOTO 		/* set search list */
36165e96449SHajimu UMEMOTO 		if (MATCH(buf, "search")) {
362dde4a85dSHajimu UMEMOTO 		    if (haveenv)	/*%< skip if have from environ */
36365e96449SHajimu UMEMOTO 			    continue;
36465e96449SHajimu UMEMOTO 		    cp = buf + sizeof("search") - 1;
36565e96449SHajimu UMEMOTO 		    while (*cp == ' ' || *cp == '\t')
36665e96449SHajimu UMEMOTO 			    cp++;
36765e96449SHajimu UMEMOTO 		    if ((*cp == '\0') || (*cp == '\n'))
36865e96449SHajimu UMEMOTO 			    continue;
36965e96449SHajimu UMEMOTO 		    strncpy(statp->defdname, cp, sizeof(statp->defdname) - 1);
37065e96449SHajimu UMEMOTO 		    statp->defdname[sizeof(statp->defdname) - 1] = '\0';
37165e96449SHajimu UMEMOTO 		    if ((cp = strchr(statp->defdname, '\n')) != NULL)
37265e96449SHajimu UMEMOTO 			    *cp = '\0';
37365e96449SHajimu UMEMOTO 		    /*
37465e96449SHajimu UMEMOTO 		     * Set search list to be blank-separated strings
37565e96449SHajimu UMEMOTO 		     * on rest of line.
37665e96449SHajimu UMEMOTO 		     */
37765e96449SHajimu UMEMOTO 		    cp = statp->defdname;
37865e96449SHajimu UMEMOTO 		    pp = statp->dnsrch;
37965e96449SHajimu UMEMOTO 		    *pp++ = cp;
38065e96449SHajimu UMEMOTO 		    for (n = 0; *cp && pp < statp->dnsrch + MAXDNSRCH; cp++) {
38165e96449SHajimu UMEMOTO 			    if (*cp == ' ' || *cp == '\t') {
38265e96449SHajimu UMEMOTO 				    *cp = 0;
38365e96449SHajimu UMEMOTO 				    n = 1;
38465e96449SHajimu UMEMOTO 			    } else if (n) {
38565e96449SHajimu UMEMOTO 				    *pp++ = cp;
38665e96449SHajimu UMEMOTO 				    n = 0;
38765e96449SHajimu UMEMOTO 			    }
38865e96449SHajimu UMEMOTO 		    }
38965e96449SHajimu UMEMOTO 		    /* null terminate last domain if there are excess */
39065e96449SHajimu UMEMOTO 		    while (*cp != '\0' && *cp != ' ' && *cp != '\t')
39165e96449SHajimu UMEMOTO 			    cp++;
39265e96449SHajimu UMEMOTO 		    *cp = '\0';
393513004a2SPedro F. Giffuni 		    *pp++ = NULL;
39465e96449SHajimu UMEMOTO 		    havesearch = 1;
39565e96449SHajimu UMEMOTO 		    continue;
39665e96449SHajimu UMEMOTO 		}
39765e96449SHajimu UMEMOTO 		/* read nameservers to query */
398d069c2b7SHajimu UMEMOTO 		if (MATCH(buf, "nameserver") && nserv < maxns) {
39965e96449SHajimu UMEMOTO 		    struct addrinfo hints, *ai;
40065e96449SHajimu UMEMOTO 		    char sbuf[NI_MAXSERV];
40165e96449SHajimu UMEMOTO 		    const size_t minsiz =
40265e96449SHajimu UMEMOTO 		        sizeof(statp->_u._ext.ext->nsaddrs[0]);
40365e96449SHajimu UMEMOTO 
40465e96449SHajimu UMEMOTO 		    cp = buf + sizeof("nameserver") - 1;
40565e96449SHajimu UMEMOTO 		    while (*cp == ' ' || *cp == '\t')
40665e96449SHajimu UMEMOTO 			cp++;
40765e96449SHajimu UMEMOTO 		    cp[strcspn(cp, ";# \t\n")] = '\0';
40865e96449SHajimu UMEMOTO 		    if ((*cp != '\0') && (*cp != '\n')) {
40965e96449SHajimu UMEMOTO 			memset(&hints, 0, sizeof(hints));
41065e96449SHajimu UMEMOTO 			hints.ai_family = PF_UNSPEC;
41165e96449SHajimu UMEMOTO 			hints.ai_socktype = SOCK_DGRAM;	/*dummy*/
41265e96449SHajimu UMEMOTO 			hints.ai_flags = AI_NUMERICHOST;
41365e96449SHajimu UMEMOTO 			sprintf(sbuf, "%u", NAMESERVER_PORT);
41465e96449SHajimu UMEMOTO 			if (getaddrinfo(cp, sbuf, &hints, &ai) == 0 &&
41565e96449SHajimu UMEMOTO 			    ai->ai_addrlen <= minsiz) {
41665e96449SHajimu UMEMOTO 			    if (statp->_u._ext.ext != NULL) {
41765e96449SHajimu UMEMOTO 				memcpy(&statp->_u._ext.ext->nsaddrs[nserv],
41865e96449SHajimu UMEMOTO 				    ai->ai_addr, ai->ai_addrlen);
41965e96449SHajimu UMEMOTO 			    }
42065e96449SHajimu UMEMOTO 			    if (ai->ai_addrlen <=
42165e96449SHajimu UMEMOTO 			        sizeof(statp->nsaddr_list[nserv])) {
42265e96449SHajimu UMEMOTO 				memcpy(&statp->nsaddr_list[nserv],
42365e96449SHajimu UMEMOTO 				    ai->ai_addr, ai->ai_addrlen);
42465e96449SHajimu UMEMOTO 			    } else
42565e96449SHajimu UMEMOTO 				statp->nsaddr_list[nserv].sin_family = 0;
42665e96449SHajimu UMEMOTO 			    freeaddrinfo(ai);
42765e96449SHajimu UMEMOTO 			    nserv++;
42865e96449SHajimu UMEMOTO 			}
42965e96449SHajimu UMEMOTO 		    }
43065e96449SHajimu UMEMOTO 		    continue;
43165e96449SHajimu UMEMOTO 		}
43265e96449SHajimu UMEMOTO #ifdef RESOLVSORT
43365e96449SHajimu UMEMOTO 		if (MATCH(buf, "sortlist")) {
43465e96449SHajimu UMEMOTO 		    struct in_addr a;
435ab96eeabSHajimu UMEMOTO 		    struct in6_addr a6;
436ab96eeabSHajimu UMEMOTO 		    int m, i;
437ab96eeabSHajimu UMEMOTO 		    u_char *u;
438ab96eeabSHajimu UMEMOTO 		    struct __res_state_ext *ext = statp->_u._ext.ext;
43965e96449SHajimu UMEMOTO 
44065e96449SHajimu UMEMOTO 		    cp = buf + sizeof("sortlist") - 1;
44165e96449SHajimu UMEMOTO 		    while (nsort < MAXRESOLVSORT) {
44265e96449SHajimu UMEMOTO 			while (*cp == ' ' || *cp == '\t')
44365e96449SHajimu UMEMOTO 			    cp++;
44465e96449SHajimu UMEMOTO 			if (*cp == '\0' || *cp == '\n' || *cp == ';')
44565e96449SHajimu UMEMOTO 			    break;
44665e96449SHajimu UMEMOTO 			net = cp;
44765e96449SHajimu UMEMOTO 			while (*cp && !ISSORTMASK(*cp) && *cp != ';' &&
44865e96449SHajimu UMEMOTO 			       isascii(*cp) && !isspace((unsigned char)*cp))
44965e96449SHajimu UMEMOTO 				cp++;
45065e96449SHajimu UMEMOTO 			n = *cp;
45165e96449SHajimu UMEMOTO 			*cp = 0;
45265e96449SHajimu UMEMOTO 			if (inet_aton(net, &a)) {
45365e96449SHajimu UMEMOTO 			    statp->sort_list[nsort].addr = a;
45465e96449SHajimu UMEMOTO 			    if (ISSORTMASK(n)) {
45565e96449SHajimu UMEMOTO 				*cp++ = n;
45665e96449SHajimu UMEMOTO 				net = cp;
45765e96449SHajimu UMEMOTO 				while (*cp && *cp != ';' &&
45865e96449SHajimu UMEMOTO 					isascii(*cp) &&
45965e96449SHajimu UMEMOTO 					!isspace((unsigned char)*cp))
46065e96449SHajimu UMEMOTO 				    cp++;
46165e96449SHajimu UMEMOTO 				n = *cp;
46265e96449SHajimu UMEMOTO 				*cp = 0;
46365e96449SHajimu UMEMOTO 				if (inet_aton(net, &a)) {
46465e96449SHajimu UMEMOTO 				    statp->sort_list[nsort].mask = a.s_addr;
46565e96449SHajimu UMEMOTO 				} else {
46665e96449SHajimu UMEMOTO 				    statp->sort_list[nsort].mask =
46765e96449SHajimu UMEMOTO 					net_mask(statp->sort_list[nsort].addr);
46865e96449SHajimu UMEMOTO 				}
46965e96449SHajimu UMEMOTO 			    } else {
47065e96449SHajimu UMEMOTO 				statp->sort_list[nsort].mask =
47165e96449SHajimu UMEMOTO 				    net_mask(statp->sort_list[nsort].addr);
47265e96449SHajimu UMEMOTO 			    }
473ab96eeabSHajimu UMEMOTO 			    ext->sort_list[nsort].af = AF_INET;
474ab96eeabSHajimu UMEMOTO 			    ext->sort_list[nsort].addr.ina =
475ab96eeabSHajimu UMEMOTO 				statp->sort_list[nsort].addr;
476ab96eeabSHajimu UMEMOTO 			    ext->sort_list[nsort].mask.ina.s_addr =
477ab96eeabSHajimu UMEMOTO 				statp->sort_list[nsort].mask;
478ab96eeabSHajimu UMEMOTO 			    nsort++;
479ab96eeabSHajimu UMEMOTO 			}
480ab96eeabSHajimu UMEMOTO 			else if (inet_pton(AF_INET6, net, &a6) == 1) {
481ab96eeabSHajimu UMEMOTO 
482ab96eeabSHajimu UMEMOTO 			    ext->sort_list[nsort].af = AF_INET6;
483ab96eeabSHajimu UMEMOTO 			    ext->sort_list[nsort].addr.in6a = a6;
484ab96eeabSHajimu UMEMOTO 			    u = (u_char *)&ext->sort_list[nsort].mask.in6a;
485ab96eeabSHajimu UMEMOTO 			    *cp++ = n;
486ab96eeabSHajimu UMEMOTO 			    net = cp;
487ab96eeabSHajimu UMEMOTO 			    while (*cp && *cp != ';' &&
488ab96eeabSHajimu UMEMOTO 				    isascii(*cp) && !isspace(*cp))
489ab96eeabSHajimu UMEMOTO 				cp++;
490ab96eeabSHajimu UMEMOTO 			    m = n;
491ab96eeabSHajimu UMEMOTO 			    n = *cp;
492ab96eeabSHajimu UMEMOTO 			    *cp = 0;
493ab96eeabSHajimu UMEMOTO 			    switch (m) {
494ab96eeabSHajimu UMEMOTO 			    case '/':
495ab96eeabSHajimu UMEMOTO 				m = atoi(net);
496ab96eeabSHajimu UMEMOTO 				break;
497ab96eeabSHajimu UMEMOTO 			    case '&':
498ab96eeabSHajimu UMEMOTO 				if (inet_pton(AF_INET6, net, u) == 1) {
499ab96eeabSHajimu UMEMOTO 				    m = -1;
500ab96eeabSHajimu UMEMOTO 				    break;
501ab96eeabSHajimu UMEMOTO 				}
502ab96eeabSHajimu UMEMOTO 				/*FALLTHROUGH*/
503ab96eeabSHajimu UMEMOTO 			    default:
504ab96eeabSHajimu UMEMOTO 				m = sizeof(struct in6_addr) * CHAR_BIT;
505ab96eeabSHajimu UMEMOTO 				break;
506ab96eeabSHajimu UMEMOTO 			    }
507ab96eeabSHajimu UMEMOTO 			    if (m >= 0) {
508ab96eeabSHajimu UMEMOTO 				for (i = 0; i < sizeof(struct in6_addr); i++) {
509ab96eeabSHajimu UMEMOTO 				    if (m <= 0) {
510ab96eeabSHajimu UMEMOTO 					*u = 0;
511ab96eeabSHajimu UMEMOTO 				    } else {
512ab96eeabSHajimu UMEMOTO 					m -= CHAR_BIT;
513ab96eeabSHajimu UMEMOTO 					*u = (u_char)~0;
514ab96eeabSHajimu UMEMOTO 					if (m < 0)
515ab96eeabSHajimu UMEMOTO 					    *u <<= -m;
516ab96eeabSHajimu UMEMOTO 				    }
517ab96eeabSHajimu UMEMOTO 				    u++;
518ab96eeabSHajimu UMEMOTO 				}
519ab96eeabSHajimu UMEMOTO 			    }
520ab96eeabSHajimu UMEMOTO 			    statp->sort_list[nsort].addr.s_addr =
521ab96eeabSHajimu UMEMOTO 				(u_int32_t)0xffffffff;
522ab96eeabSHajimu UMEMOTO 			    statp->sort_list[nsort].mask =
523ab96eeabSHajimu UMEMOTO 				(u_int32_t)0xffffffff;
52465e96449SHajimu UMEMOTO 			    nsort++;
52565e96449SHajimu UMEMOTO 			}
52665e96449SHajimu UMEMOTO 			*cp = n;
52765e96449SHajimu UMEMOTO 		    }
52865e96449SHajimu UMEMOTO 		    continue;
52965e96449SHajimu UMEMOTO 		}
53065e96449SHajimu UMEMOTO #endif
53165e96449SHajimu UMEMOTO 		if (MATCH(buf, "options")) {
53265e96449SHajimu UMEMOTO 		    res_setoptions(statp, buf + sizeof("options") - 1, "conf");
53365e96449SHajimu UMEMOTO 		    continue;
53465e96449SHajimu UMEMOTO 		}
53565e96449SHajimu UMEMOTO 	    }
53665e96449SHajimu UMEMOTO 	    if (nserv > 0)
53765e96449SHajimu UMEMOTO 		statp->nscount = nserv;
53865e96449SHajimu UMEMOTO #ifdef RESOLVSORT
53965e96449SHajimu UMEMOTO 	    statp->nsort = nsort;
54065e96449SHajimu UMEMOTO #endif
54165e96449SHajimu UMEMOTO 	    (void) fclose(fp);
54265e96449SHajimu UMEMOTO 	}
54365e96449SHajimu UMEMOTO /*
54465e96449SHajimu UMEMOTO  * Last chance to get a nameserver.  This should not normally
54565e96449SHajimu UMEMOTO  * be necessary
54665e96449SHajimu UMEMOTO  */
54765e96449SHajimu UMEMOTO #ifdef NO_RESOLV_CONF
54865e96449SHajimu UMEMOTO 	if(nserv == 0)
54965e96449SHajimu UMEMOTO 		nserv = get_nameservers(statp);
55065e96449SHajimu UMEMOTO #endif
55165e96449SHajimu UMEMOTO 
55265e96449SHajimu UMEMOTO 	if (statp->defdname[0] == 0 &&
55365e96449SHajimu UMEMOTO 	    gethostname(buf, sizeof(statp->defdname) - 1) == 0 &&
55465e96449SHajimu UMEMOTO 	    (cp = strchr(buf, '.')) != NULL)
55565e96449SHajimu UMEMOTO 		strcpy(statp->defdname, cp + 1);
55665e96449SHajimu UMEMOTO 
55765e96449SHajimu UMEMOTO 	/* find components of local domain that might be searched */
55865e96449SHajimu UMEMOTO 	if (havesearch == 0) {
55965e96449SHajimu UMEMOTO 		pp = statp->dnsrch;
56065e96449SHajimu UMEMOTO 		*pp++ = statp->defdname;
56165e96449SHajimu UMEMOTO 		*pp = NULL;
56265e96449SHajimu UMEMOTO 
56365e96449SHajimu UMEMOTO 		dots = 0;
56465e96449SHajimu UMEMOTO 		for (cp = statp->defdname; *cp; cp++)
56565e96449SHajimu UMEMOTO 			dots += (*cp == '.');
56665e96449SHajimu UMEMOTO 
56765e96449SHajimu UMEMOTO 		cp = statp->defdname;
56865e96449SHajimu UMEMOTO 		while (pp < statp->dnsrch + MAXDFLSRCH) {
56965e96449SHajimu UMEMOTO 			if (dots < LOCALDOMAINPARTS)
57065e96449SHajimu UMEMOTO 				break;
571dde4a85dSHajimu UMEMOTO 			cp = strchr(cp, '.') + 1;    /*%< we know there is one */
57265e96449SHajimu UMEMOTO 			*pp++ = cp;
57365e96449SHajimu UMEMOTO 			dots--;
57465e96449SHajimu UMEMOTO 		}
57565e96449SHajimu UMEMOTO 		*pp = NULL;
57665e96449SHajimu UMEMOTO #ifdef DEBUG
57765e96449SHajimu UMEMOTO 		if (statp->options & RES_DEBUG) {
57865e96449SHajimu UMEMOTO 			printf(";; res_init()... default dnsrch list:\n");
57965e96449SHajimu UMEMOTO 			for (pp = statp->dnsrch; *pp; pp++)
58065e96449SHajimu UMEMOTO 				printf(";;\t%s\n", *pp);
58165e96449SHajimu UMEMOTO 			printf(";;\t..END..\n");
58265e96449SHajimu UMEMOTO 		}
58365e96449SHajimu UMEMOTO #endif
58465e96449SHajimu UMEMOTO 	}
58565e96449SHajimu UMEMOTO 
586ab96eeabSHajimu UMEMOTO 	if (issetugid())
587ab96eeabSHajimu UMEMOTO 		statp->options |= RES_NOALIASES;
588ab96eeabSHajimu UMEMOTO 	else if ((cp = getenv("RES_OPTIONS")) != NULL)
58965e96449SHajimu UMEMOTO 		res_setoptions(statp, cp, "env");
59065e96449SHajimu UMEMOTO 	statp->options |= RES_INIT;
591d069c2b7SHajimu UMEMOTO 	return (statp->res_h_errno);
59265e96449SHajimu UMEMOTO }
59365e96449SHajimu UMEMOTO 
59465e96449SHajimu UMEMOTO static void
59565e96449SHajimu UMEMOTO res_setoptions(res_state statp, const char *options, const char *source)
59665e96449SHajimu UMEMOTO {
59765e96449SHajimu UMEMOTO 	const char *cp = options;
59865e96449SHajimu UMEMOTO 	int i;
59965e96449SHajimu UMEMOTO 	struct __res_state_ext *ext = statp->_u._ext.ext;
60065e96449SHajimu UMEMOTO 
60165e96449SHajimu UMEMOTO #ifdef DEBUG
60265e96449SHajimu UMEMOTO 	if (statp->options & RES_DEBUG)
60365e96449SHajimu UMEMOTO 		printf(";; res_setoptions(\"%s\", \"%s\")...\n",
60465e96449SHajimu UMEMOTO 		       options, source);
60565e96449SHajimu UMEMOTO #endif
60665e96449SHajimu UMEMOTO 	while (*cp) {
60765e96449SHajimu UMEMOTO 		/* skip leading and inner runs of spaces */
60865e96449SHajimu UMEMOTO 		while (*cp == ' ' || *cp == '\t')
60965e96449SHajimu UMEMOTO 			cp++;
61065e96449SHajimu UMEMOTO 		/* search for and process individual options */
61165e96449SHajimu UMEMOTO 		if (!strncmp(cp, "ndots:", sizeof("ndots:") - 1)) {
61265e96449SHajimu UMEMOTO 			i = atoi(cp + sizeof("ndots:") - 1);
61365e96449SHajimu UMEMOTO 			if (i <= RES_MAXNDOTS)
61465e96449SHajimu UMEMOTO 				statp->ndots = i;
61565e96449SHajimu UMEMOTO 			else
61665e96449SHajimu UMEMOTO 				statp->ndots = RES_MAXNDOTS;
61765e96449SHajimu UMEMOTO #ifdef DEBUG
61865e96449SHajimu UMEMOTO 			if (statp->options & RES_DEBUG)
61965e96449SHajimu UMEMOTO 				printf(";;\tndots=%d\n", statp->ndots);
62065e96449SHajimu UMEMOTO #endif
62165e96449SHajimu UMEMOTO 		} else if (!strncmp(cp, "timeout:", sizeof("timeout:") - 1)) {
62265e96449SHajimu UMEMOTO 			i = atoi(cp + sizeof("timeout:") - 1);
62365e96449SHajimu UMEMOTO 			if (i <= RES_MAXRETRANS)
62465e96449SHajimu UMEMOTO 				statp->retrans = i;
62565e96449SHajimu UMEMOTO 			else
62665e96449SHajimu UMEMOTO 				statp->retrans = RES_MAXRETRANS;
62765e96449SHajimu UMEMOTO #ifdef DEBUG
62865e96449SHajimu UMEMOTO 			if (statp->options & RES_DEBUG)
62965e96449SHajimu UMEMOTO 				printf(";;\ttimeout=%d\n", statp->retrans);
63065e96449SHajimu UMEMOTO #endif
63165e96449SHajimu UMEMOTO #ifdef	SOLARIS2
63265e96449SHajimu UMEMOTO 		} else if (!strncmp(cp, "retrans:", sizeof("retrans:") - 1)) {
63365e96449SHajimu UMEMOTO 			/*
63465e96449SHajimu UMEMOTO 		 	 * For backward compatibility, 'retrans' is
63565e96449SHajimu UMEMOTO 		 	 * supported as an alias for 'timeout', though
63665e96449SHajimu UMEMOTO 		 	 * without an imposed maximum.
63765e96449SHajimu UMEMOTO 		 	 */
63865e96449SHajimu UMEMOTO 			statp->retrans = atoi(cp + sizeof("retrans:") - 1);
63965e96449SHajimu UMEMOTO 		} else if (!strncmp(cp, "retry:", sizeof("retry:") - 1)){
64065e96449SHajimu UMEMOTO 			/*
64165e96449SHajimu UMEMOTO 			 * For backward compatibility, 'retry' is
64265e96449SHajimu UMEMOTO 			 * supported as an alias for 'attempts', though
64365e96449SHajimu UMEMOTO 			 * without an imposed maximum.
64465e96449SHajimu UMEMOTO 			 */
64565e96449SHajimu UMEMOTO 			statp->retry = atoi(cp + sizeof("retry:") - 1);
64665e96449SHajimu UMEMOTO #endif	/* SOLARIS2 */
64765e96449SHajimu UMEMOTO 		} else if (!strncmp(cp, "attempts:", sizeof("attempts:") - 1)){
64865e96449SHajimu UMEMOTO 			i = atoi(cp + sizeof("attempts:") - 1);
64965e96449SHajimu UMEMOTO 			if (i <= RES_MAXRETRY)
65065e96449SHajimu UMEMOTO 				statp->retry = i;
65165e96449SHajimu UMEMOTO 			else
65265e96449SHajimu UMEMOTO 				statp->retry = RES_MAXRETRY;
65365e96449SHajimu UMEMOTO #ifdef DEBUG
65465e96449SHajimu UMEMOTO 			if (statp->options & RES_DEBUG)
65565e96449SHajimu UMEMOTO 				printf(";;\tattempts=%d\n", statp->retry);
65665e96449SHajimu UMEMOTO #endif
65765e96449SHajimu UMEMOTO 		} else if (!strncmp(cp, "debug", sizeof("debug") - 1)) {
65865e96449SHajimu UMEMOTO #ifdef DEBUG
65965e96449SHajimu UMEMOTO 			if (!(statp->options & RES_DEBUG)) {
66065e96449SHajimu UMEMOTO 				printf(";; res_setoptions(\"%s\", \"%s\")..\n",
66165e96449SHajimu UMEMOTO 				       options, source);
66265e96449SHajimu UMEMOTO 				statp->options |= RES_DEBUG;
66365e96449SHajimu UMEMOTO 			}
66465e96449SHajimu UMEMOTO 			printf(";;\tdebug\n");
66565e96449SHajimu UMEMOTO #endif
66665e96449SHajimu UMEMOTO 		} else if (!strncmp(cp, "no_tld_query",
66765e96449SHajimu UMEMOTO 				    sizeof("no_tld_query") - 1) ||
66865e96449SHajimu UMEMOTO 			   !strncmp(cp, "no-tld-query",
66965e96449SHajimu UMEMOTO 				    sizeof("no-tld-query") - 1)) {
67065e96449SHajimu UMEMOTO 			statp->options |= RES_NOTLDQUERY;
67165e96449SHajimu UMEMOTO 		} else if (!strncmp(cp, "inet6", sizeof("inet6") - 1)) {
67265e96449SHajimu UMEMOTO 			statp->options |= RES_USE_INET6;
673ab96eeabSHajimu UMEMOTO 		} else if (!strncmp(cp, "insecure1", sizeof("insecure1") - 1)) {
674ab96eeabSHajimu UMEMOTO 		       statp->options |= RES_INSECURE1;
675ab96eeabSHajimu UMEMOTO 		} else if (!strncmp(cp, "insecure2", sizeof("insecure2") - 1)) {
676ab96eeabSHajimu UMEMOTO 		       statp->options |= RES_INSECURE2;
67765e96449SHajimu UMEMOTO 		} else if (!strncmp(cp, "rotate", sizeof("rotate") - 1)) {
67865e96449SHajimu UMEMOTO 			statp->options |= RES_ROTATE;
67965e96449SHajimu UMEMOTO 		} else if (!strncmp(cp, "no-check-names",
68065e96449SHajimu UMEMOTO 				    sizeof("no-check-names") - 1)) {
68165e96449SHajimu UMEMOTO 			statp->options |= RES_NOCHECKNAME;
68260b27ebbSEric van Gyzen 		} else if (!strncmp(cp, "reload-period:",
68360b27ebbSEric van Gyzen 				    sizeof("reload-period:") - 1)) {
684c70540ecSEric van Gyzen 			if (ext != NULL) {
685c70540ecSEric van Gyzen 				ext->reload_period = (u_short)
68660b27ebbSEric van Gyzen 				    atoi(cp + sizeof("reload-period:") - 1);
68765e96449SHajimu UMEMOTO 			}
688c70540ecSEric van Gyzen 		}
68965e96449SHajimu UMEMOTO #ifdef RES_USE_EDNS0
69065e96449SHajimu UMEMOTO 		else if (!strncmp(cp, "edns0", sizeof("edns0") - 1)) {
69165e96449SHajimu UMEMOTO 			statp->options |= RES_USE_EDNS0;
69265e96449SHajimu UMEMOTO 		}
69365e96449SHajimu UMEMOTO #endif
694ab96eeabSHajimu UMEMOTO #ifndef _LIBC
69565e96449SHajimu UMEMOTO 		else if (!strncmp(cp, "dname", sizeof("dname") - 1)) {
69665e96449SHajimu UMEMOTO 			statp->options |= RES_USE_DNAME;
69765e96449SHajimu UMEMOTO 		}
69865e96449SHajimu UMEMOTO 		else if (!strncmp(cp, "nibble:", sizeof("nibble:") - 1)) {
69965e96449SHajimu UMEMOTO 			if (ext == NULL)
70065e96449SHajimu UMEMOTO 				goto skip;
70165e96449SHajimu UMEMOTO 			cp += sizeof("nibble:") - 1;
70265e96449SHajimu UMEMOTO 			i = MIN(strcspn(cp, " \t"), sizeof(ext->nsuffix) - 1);
70365e96449SHajimu UMEMOTO 			strncpy(ext->nsuffix, cp, i);
70465e96449SHajimu UMEMOTO 			ext->nsuffix[i] = '\0';
70565e96449SHajimu UMEMOTO 		}
70665e96449SHajimu UMEMOTO 		else if (!strncmp(cp, "nibble2:", sizeof("nibble2:") - 1)) {
70765e96449SHajimu UMEMOTO 			if (ext == NULL)
70865e96449SHajimu UMEMOTO 				goto skip;
70965e96449SHajimu UMEMOTO 			cp += sizeof("nibble2:") - 1;
71065e96449SHajimu UMEMOTO 			i = MIN(strcspn(cp, " \t"), sizeof(ext->nsuffix2) - 1);
71165e96449SHajimu UMEMOTO 			strncpy(ext->nsuffix2, cp, i);
71265e96449SHajimu UMEMOTO 			ext->nsuffix2[i] = '\0';
71365e96449SHajimu UMEMOTO 		}
71465e96449SHajimu UMEMOTO 		else if (!strncmp(cp, "v6revmode:", sizeof("v6revmode:") - 1)) {
71565e96449SHajimu UMEMOTO 			cp += sizeof("v6revmode:") - 1;
71665e96449SHajimu UMEMOTO 			/* "nibble" and "bitstring" used to be valid */
71765e96449SHajimu UMEMOTO 			if (!strncmp(cp, "single", sizeof("single") - 1)) {
71865e96449SHajimu UMEMOTO 				statp->options |= RES_NO_NIBBLE2;
71965e96449SHajimu UMEMOTO 			} else if (!strncmp(cp, "both", sizeof("both") - 1)) {
72065e96449SHajimu UMEMOTO 				statp->options &=
72165e96449SHajimu UMEMOTO 					 ~RES_NO_NIBBLE2;
72265e96449SHajimu UMEMOTO 			}
72365e96449SHajimu UMEMOTO 		}
724ab96eeabSHajimu UMEMOTO #endif
72565e96449SHajimu UMEMOTO 		else {
72665e96449SHajimu UMEMOTO 			/* XXX - print a warning here? */
72765e96449SHajimu UMEMOTO 		}
728ab96eeabSHajimu UMEMOTO #ifndef _LIBC
72965e96449SHajimu UMEMOTO    skip:
730ab96eeabSHajimu UMEMOTO #endif
73165e96449SHajimu UMEMOTO 		/* skip to next run of spaces */
73265e96449SHajimu UMEMOTO 		while (*cp && *cp != ' ' && *cp != '\t')
73365e96449SHajimu UMEMOTO 			cp++;
73465e96449SHajimu UMEMOTO 	}
73565e96449SHajimu UMEMOTO }
73665e96449SHajimu UMEMOTO 
73765e96449SHajimu UMEMOTO #ifdef RESOLVSORT
73865e96449SHajimu UMEMOTO /* XXX - should really support CIDR which means explicit masks always. */
73965e96449SHajimu UMEMOTO static u_int32_t
740c6a7de08SCraig Rodrigues net_mask(struct in_addr in)		/*!< XXX - should really use system's version of this  */
74165e96449SHajimu UMEMOTO {
742ab96eeabSHajimu UMEMOTO 	u_int32_t i = ntohl(in.s_addr);
74365e96449SHajimu UMEMOTO 
74465e96449SHajimu UMEMOTO 	if (IN_CLASSA(i))
74565e96449SHajimu UMEMOTO 		return (htonl(IN_CLASSA_NET));
74665e96449SHajimu UMEMOTO 	else if (IN_CLASSB(i))
74765e96449SHajimu UMEMOTO 		return (htonl(IN_CLASSB_NET));
74865e96449SHajimu UMEMOTO 	return (htonl(IN_CLASSC_NET));
74965e96449SHajimu UMEMOTO }
75065e96449SHajimu UMEMOTO #endif
75165e96449SHajimu UMEMOTO 
752e4576472SHajimu UMEMOTO static u_char srnd[16];
753e4576472SHajimu UMEMOTO 
754046c3635SPedro F. Giffuni void
755046c3635SPedro F. Giffuni res_rndinit(res_state statp)
756046c3635SPedro F. Giffuni {
75765e96449SHajimu UMEMOTO 	struct timeval now;
758046c3635SPedro F. Giffuni 	u_int32_t u32;
759046c3635SPedro F. Giffuni 	u_int16_t u16;
760e4576472SHajimu UMEMOTO 	u_char *rnd = statp->_rnd == NULL ? srnd : statp->_rnd;
76165e96449SHajimu UMEMOTO 
76265e96449SHajimu UMEMOTO 	gettimeofday(&now, NULL);
763046c3635SPedro F. Giffuni 	u32 = now.tv_sec;
764e4576472SHajimu UMEMOTO 	memcpy(rnd, &u32, 4);
765046c3635SPedro F. Giffuni 	u32 = now.tv_usec;
766e4576472SHajimu UMEMOTO 	memcpy(rnd + 4, &u32, 4);
767046c3635SPedro F. Giffuni 	u32 += now.tv_sec;
768e4576472SHajimu UMEMOTO 	memcpy(rnd + 8, &u32, 4);
769046c3635SPedro F. Giffuni 	u16 = getpid();
770e4576472SHajimu UMEMOTO 	memcpy(rnd + 12, &u16, 2);
771046c3635SPedro F. Giffuni }
772046c3635SPedro F. Giffuni 
773046c3635SPedro F. Giffuni u_int
774046c3635SPedro F. Giffuni res_nrandomid(res_state statp) {
775046c3635SPedro F. Giffuni 	struct timeval now;
776046c3635SPedro F. Giffuni 	u_int16_t u16;
777046c3635SPedro F. Giffuni 	MD5_CTX ctx;
778e4576472SHajimu UMEMOTO 	u_char *rnd = statp->_rnd == NULL ? srnd : statp->_rnd;
779046c3635SPedro F. Giffuni 
780046c3635SPedro F. Giffuni 	gettimeofday(&now, NULL);
781046c3635SPedro F. Giffuni 	u16 = (u_int16_t) (now.tv_sec ^ now.tv_usec);
782e4576472SHajimu UMEMOTO 	memcpy(rnd + 14, &u16, 2);
783046c3635SPedro F. Giffuni #ifndef HAVE_MD5
784046c3635SPedro F. Giffuni 	MD5_Init(&ctx);
785e4576472SHajimu UMEMOTO 	MD5_Update(&ctx, rnd, 16);
786e4576472SHajimu UMEMOTO 	MD5_Final(rnd, &ctx);
787046c3635SPedro F. Giffuni #else
788046c3635SPedro F. Giffuni 	MD5Init(&ctx);
789e4576472SHajimu UMEMOTO 	MD5Update(&ctx, rnd, 16);
790e4576472SHajimu UMEMOTO 	MD5Final(rnd, &ctx);
791046c3635SPedro F. Giffuni #endif
792e4576472SHajimu UMEMOTO 	memcpy(&u16, rnd + 14, 2);
793046c3635SPedro F. Giffuni 	return ((u_int) u16);
79465e96449SHajimu UMEMOTO }
79565e96449SHajimu UMEMOTO 
796dde4a85dSHajimu UMEMOTO /*%
79765e96449SHajimu UMEMOTO  * This routine is for closing the socket if a virtual circuit is used and
79865e96449SHajimu UMEMOTO  * the program wants to close it.  This provides support for endhostent()
79965e96449SHajimu UMEMOTO  * which expects to close the socket.
80065e96449SHajimu UMEMOTO  *
80165e96449SHajimu UMEMOTO  * This routine is not expected to be user visible.
80265e96449SHajimu UMEMOTO  */
80365e96449SHajimu UMEMOTO void
80465e96449SHajimu UMEMOTO res_nclose(res_state statp) {
80565e96449SHajimu UMEMOTO 	int ns;
80665e96449SHajimu UMEMOTO 
80765e96449SHajimu UMEMOTO 	if (statp->_vcsock >= 0) {
808500fe2a1SHajimu UMEMOTO 		(void) _close(statp->_vcsock);
80965e96449SHajimu UMEMOTO 		statp->_vcsock = -1;
81065e96449SHajimu UMEMOTO 		statp->_flags &= ~(RES_F_VC | RES_F_CONN);
81165e96449SHajimu UMEMOTO 	}
81265e96449SHajimu UMEMOTO 	for (ns = 0; ns < statp->_u._ext.nscount; ns++) {
81365e96449SHajimu UMEMOTO 		if (statp->_u._ext.nssocks[ns] != -1) {
814500fe2a1SHajimu UMEMOTO 			(void) _close(statp->_u._ext.nssocks[ns]);
81565e96449SHajimu UMEMOTO 			statp->_u._ext.nssocks[ns] = -1;
81665e96449SHajimu UMEMOTO 		}
81765e96449SHajimu UMEMOTO 	}
81865e96449SHajimu UMEMOTO }
81965e96449SHajimu UMEMOTO 
82065e96449SHajimu UMEMOTO void
82165e96449SHajimu UMEMOTO res_ndestroy(res_state statp) {
82265e96449SHajimu UMEMOTO 	res_nclose(statp);
823e4576472SHajimu UMEMOTO 	if (statp->_u._ext.ext != NULL) {
82465e96449SHajimu UMEMOTO 		free(statp->_u._ext.ext);
82565e96449SHajimu UMEMOTO 		statp->_u._ext.ext = NULL;
82665e96449SHajimu UMEMOTO 	}
827e4576472SHajimu UMEMOTO 	if (statp->_rnd != NULL) {
828e4576472SHajimu UMEMOTO 		free(statp->_rnd);
829e4576472SHajimu UMEMOTO 		statp->_rnd = NULL;
830e4576472SHajimu UMEMOTO 	}
831e4576472SHajimu UMEMOTO 	statp->options &= ~RES_INIT;
832e4576472SHajimu UMEMOTO }
83365e96449SHajimu UMEMOTO 
834ab96eeabSHajimu UMEMOTO #ifndef _LIBC
83565e96449SHajimu UMEMOTO const char *
83665e96449SHajimu UMEMOTO res_get_nibblesuffix(res_state statp) {
83765e96449SHajimu UMEMOTO 	if (statp->_u._ext.ext)
83865e96449SHajimu UMEMOTO 		return (statp->_u._ext.ext->nsuffix);
83965e96449SHajimu UMEMOTO 	return ("ip6.arpa");
84065e96449SHajimu UMEMOTO }
84165e96449SHajimu UMEMOTO 
84265e96449SHajimu UMEMOTO const char *
84365e96449SHajimu UMEMOTO res_get_nibblesuffix2(res_state statp) {
84465e96449SHajimu UMEMOTO 	if (statp->_u._ext.ext)
84565e96449SHajimu UMEMOTO 		return (statp->_u._ext.ext->nsuffix2);
84665e96449SHajimu UMEMOTO 	return ("ip6.int");
84765e96449SHajimu UMEMOTO }
848ab96eeabSHajimu UMEMOTO #endif
84965e96449SHajimu UMEMOTO 
85065e96449SHajimu UMEMOTO void
85165e96449SHajimu UMEMOTO res_setservers(res_state statp, const union res_sockaddr_union *set, int cnt) {
85265e96449SHajimu UMEMOTO 	int i, nserv;
85365e96449SHajimu UMEMOTO 	size_t size;
85465e96449SHajimu UMEMOTO 
85565e96449SHajimu UMEMOTO 	/* close open servers */
85665e96449SHajimu UMEMOTO 	res_nclose(statp);
85765e96449SHajimu UMEMOTO 
85865e96449SHajimu UMEMOTO 	/* cause rtt times to be forgotten */
85965e96449SHajimu UMEMOTO 	statp->_u._ext.nscount = 0;
86065e96449SHajimu UMEMOTO 
86165e96449SHajimu UMEMOTO 	nserv = 0;
86265e96449SHajimu UMEMOTO 	for (i = 0; i < cnt && nserv < MAXNS; i++) {
86365e96449SHajimu UMEMOTO 		switch (set->sin.sin_family) {
86465e96449SHajimu UMEMOTO 		case AF_INET:
86565e96449SHajimu UMEMOTO 			size = sizeof(set->sin);
86665e96449SHajimu UMEMOTO 			if (statp->_u._ext.ext)
86765e96449SHajimu UMEMOTO 				memcpy(&statp->_u._ext.ext->nsaddrs[nserv],
86865e96449SHajimu UMEMOTO 					&set->sin, size);
86965e96449SHajimu UMEMOTO 			if (size <= sizeof(statp->nsaddr_list[nserv]))
87065e96449SHajimu UMEMOTO 				memcpy(&statp->nsaddr_list[nserv],
87165e96449SHajimu UMEMOTO 					&set->sin, size);
87265e96449SHajimu UMEMOTO 			else
87365e96449SHajimu UMEMOTO 				statp->nsaddr_list[nserv].sin_family = 0;
87465e96449SHajimu UMEMOTO 			nserv++;
87565e96449SHajimu UMEMOTO 			break;
87665e96449SHajimu UMEMOTO 
87765e96449SHajimu UMEMOTO #ifdef HAS_INET6_STRUCTS
87865e96449SHajimu UMEMOTO 		case AF_INET6:
87965e96449SHajimu UMEMOTO 			size = sizeof(set->sin6);
88065e96449SHajimu UMEMOTO 			if (statp->_u._ext.ext)
88165e96449SHajimu UMEMOTO 				memcpy(&statp->_u._ext.ext->nsaddrs[nserv],
88265e96449SHajimu UMEMOTO 					&set->sin6, size);
88365e96449SHajimu UMEMOTO 			if (size <= sizeof(statp->nsaddr_list[nserv]))
88465e96449SHajimu UMEMOTO 				memcpy(&statp->nsaddr_list[nserv],
88565e96449SHajimu UMEMOTO 					&set->sin6, size);
88665e96449SHajimu UMEMOTO 			else
88765e96449SHajimu UMEMOTO 				statp->nsaddr_list[nserv].sin_family = 0;
88865e96449SHajimu UMEMOTO 			nserv++;
88965e96449SHajimu UMEMOTO 			break;
89065e96449SHajimu UMEMOTO #endif
89165e96449SHajimu UMEMOTO 
89265e96449SHajimu UMEMOTO 		default:
89365e96449SHajimu UMEMOTO 			break;
89465e96449SHajimu UMEMOTO 		}
89565e96449SHajimu UMEMOTO 		set++;
89665e96449SHajimu UMEMOTO 	}
89765e96449SHajimu UMEMOTO 	statp->nscount = nserv;
89865e96449SHajimu UMEMOTO 
89965e96449SHajimu UMEMOTO }
90065e96449SHajimu UMEMOTO 
90165e96449SHajimu UMEMOTO int
90265e96449SHajimu UMEMOTO res_getservers(res_state statp, union res_sockaddr_union *set, int cnt) {
90365e96449SHajimu UMEMOTO 	int i;
90465e96449SHajimu UMEMOTO 	size_t size;
90565e96449SHajimu UMEMOTO 	u_int16_t family;
90665e96449SHajimu UMEMOTO 
90765e96449SHajimu UMEMOTO 	for (i = 0; i < statp->nscount && i < cnt; i++) {
90865e96449SHajimu UMEMOTO 		if (statp->_u._ext.ext)
90965e96449SHajimu UMEMOTO 			family = statp->_u._ext.ext->nsaddrs[i].sin.sin_family;
91065e96449SHajimu UMEMOTO 		else
91165e96449SHajimu UMEMOTO 			family = statp->nsaddr_list[i].sin_family;
91265e96449SHajimu UMEMOTO 
91365e96449SHajimu UMEMOTO 		switch (family) {
91465e96449SHajimu UMEMOTO 		case AF_INET:
91565e96449SHajimu UMEMOTO 			size = sizeof(set->sin);
91665e96449SHajimu UMEMOTO 			if (statp->_u._ext.ext)
91765e96449SHajimu UMEMOTO 				memcpy(&set->sin,
91865e96449SHajimu UMEMOTO 				       &statp->_u._ext.ext->nsaddrs[i],
91965e96449SHajimu UMEMOTO 				       size);
92065e96449SHajimu UMEMOTO 			else
92165e96449SHajimu UMEMOTO 				memcpy(&set->sin, &statp->nsaddr_list[i],
92265e96449SHajimu UMEMOTO 				       size);
92365e96449SHajimu UMEMOTO 			break;
92465e96449SHajimu UMEMOTO 
92565e96449SHajimu UMEMOTO #ifdef HAS_INET6_STRUCTS
92665e96449SHajimu UMEMOTO 		case AF_INET6:
92765e96449SHajimu UMEMOTO 			size = sizeof(set->sin6);
92865e96449SHajimu UMEMOTO 			if (statp->_u._ext.ext)
92965e96449SHajimu UMEMOTO 				memcpy(&set->sin6,
93065e96449SHajimu UMEMOTO 				       &statp->_u._ext.ext->nsaddrs[i],
93165e96449SHajimu UMEMOTO 				       size);
93265e96449SHajimu UMEMOTO 			else
93365e96449SHajimu UMEMOTO 				memcpy(&set->sin6, &statp->nsaddr_list[i],
93465e96449SHajimu UMEMOTO 				       size);
93565e96449SHajimu UMEMOTO 			break;
93665e96449SHajimu UMEMOTO #endif
93765e96449SHajimu UMEMOTO 
93865e96449SHajimu UMEMOTO 		default:
93965e96449SHajimu UMEMOTO 			set->sin.sin_family = 0;
94065e96449SHajimu UMEMOTO 			break;
94165e96449SHajimu UMEMOTO 		}
94265e96449SHajimu UMEMOTO 		set++;
94365e96449SHajimu UMEMOTO 	}
94465e96449SHajimu UMEMOTO 	return (statp->nscount);
94565e96449SHajimu UMEMOTO }
946dde4a85dSHajimu UMEMOTO 
947dde4a85dSHajimu UMEMOTO /*! \file */
948