1 files changed, 131 insertions, 305 deletions

diff --git a/resolv/res_init.c b/resolv/res_init.c
index e5520ff65e..bf6cf7f7b1 100644
--- a/resolv/res_init.c
+++ b/resolv/res_init.c
@@ -1,6 +1,4 @@
 /*
- * ++Copyright++ 1985, 1989, 1993
- * -
  * Copyright (c) 1985, 1989, 1993
  *    The Regents of the University of California.  All rights reserved.
  *
@@ -27,7 +25,9 @@
  * 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.
- * -
+ */
+
+/*
  * Portions Copyright (c) 1993 by Digital Equipment Corporation.
  *
  * Permission to use, copy, modify, and distribute this software for any
@@ -45,68 +45,55 @@
  * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
  * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  * SOFTWARE.
- * -
- * --Copyright--
+ */
+
+/*
+ * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
+ * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
+ * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static char sccsid[] = "@(#)res_init.c	8.1 (Berkeley) 6/7/93";
-static char rcsid[] = "$Id$";
+static const char sccsid[] = "@(#)res_init.c	8.1 (Berkeley) 6/7/93";
+static const char rcsid[] = "$Id$";
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/socket.h>
 #include <sys/time.h>
+
 #include <netinet/in.h>
 #include <arpa/inet.h>
 #include <arpa/nameser.h>
 
-#include <stdio.h>
 #include <ctype.h>
 #include <resolv.h>
-#if defined(BSD) && (BSD >= 199103)
-# include <unistd.h>
-# include <stdlib.h>
-# include <string.h>
-#else
-# include "../conf/portability.h"
-#endif
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
 
-/*-------------------------------------- info about "sortlist" --------------
- * Marc Majka		1994/04/16
- * Allan Nathanson	1994/10/29 (BIND 4.9.3.x)
- *
- * NetInfo resolver configuration directory support.
- *
- * Allow a NetInfo directory to be created in the hierarchy which
- * contains the same information as the resolver configuration file.
- *
- * - The local domain name is stored as the value of the "domain" property.
- * - The Internet address(es) of the name server(s) are stored as values
- *   of the "nameserver" property.
- * - The name server addresses are stored as values of the "nameserver"
- *   property.
- * - The search list for host-name lookup is stored as values of the
- *   "search" property.
- * - The sortlist comprised of IP address netmask pairs are stored as
- *   values of the "sortlist" property. The IP address and optional netmask
- *   should be separated by a slash (/) or ampersand (&) character.
- * - Internal resolver variables can be set from the value of the "options"
- *   property.
- */
-#if defined(NeXT)
-#  include <netinfo/ni.h>
-#  define NI_PATH_RESCONF "/locations/resolver"
-#  define NI_TIMEOUT 10
-static int netinfo_res_init __P((int *haveenv, int *havesearch));
-#endif
+/* Options.  Should all be left alone. */
+#define RESOLVSORT
+#define RFC1535
+#undef DEBUG
 
-#if defined(USE_OPTIONS_H)
-# include "../conf/options.h"
-#endif
+static void
+res_setoptions (res_state statp, const char *options, const char *source)
+     internal_function;
 
-static void res_setoptions __P((char *, char *)) internal_function;
 
 #ifdef RESOLVSORT
 static const char sort_mask[] = "/&";
@@ -122,12 +109,6 @@ static u_int32_t net_mask __P((struct in_addr));
  * Resolver state default settings.
  */
 
-struct __res_state _res
-# if defined(__BIND_RES_TEXT)
-	= { RES_TIMEOUT, }	/* Motorola, et al. */
-# endif
-	;
-
 /*
  * Set up default settings.  If the configuration file exist, the values
  * there will have precedence.  Otherwise, the server address is set to
@@ -138,7 +119,7 @@ struct __res_state _res
  * since it was noted that INADDR_ANY actually meant ``the first interface
  * you "ifconfig"'d at boot time'' and if this was a SLIP or PPP interface,
  * it had to be "up" in order for you to reach your own name server.  It
- * was later decided that since the recommended practice is to always
+ * was later decided that since the recommended practice is to always 
  * install local static routes through 127.0.0.1 for all your network
  * interfaces, that we could solve this problem without a code change.
  *
@@ -150,12 +131,19 @@ struct __res_state _res
  * Return 0 if completes successfully, -1 on error
  */
 int
-res_init()
-{
+res_ninit(res_state statp) {
+	extern int __res_vinit(res_state, int);
+
+	return (__res_vinit(statp, 0));
+}
+
+/* This function has to be reachable by res_data.c but not publically. */
+int
+__res_vinit(res_state statp, int preinit) {
 	register FILE *fp;
 	register char *cp, **pp;
 	register int n;
-	char buf[MAXDNAME];
+	char buf[BUFSIZ];
 	int nserv = 0;    /* number of nameserver records read from file */
 	int haveenv = 0;
 	int havesearch = 0;
@@ -167,54 +155,32 @@ res_init()
 	int dots;
 #endif
 
-	/*
-	 * These three fields used to be statically initialized.  This made
-	 * it hard to use this code in a shared library.  It is necessary,
-	 * now that we're doing dynamic initialization here, that we preserve
-	 * the old semantics: if an application modifies one of these three
-	 * fields of _res before res_init() is called, res_init() will not
-	 * alter them.  Of course, if an application is setting them to
-	 * _zero_ before calling res_init(), hoping to override what used
-	 * to be the static default, we can't detect it and unexpected results
-	 * will follow.  Zero for any of these fields would make no sense,
-	 * so one can safely assume that the applications were already getting
-	 * unexpected results.
-	 *
-	 * _res.options is tricky since some apps were known to diddle the bits
-	 * before res_init() was first called. We can't replicate that semantic
-	 * with dynamic initialization (they may have turned bits off that are
-	 * set in RES_DEFAULT).  Our solution is to declare such applications
-	 * "broken".  They could fool us by setting RES_INIT but none do (yet).
-	 */
-	if (!_res.retrans)
-		_res.retrans = RES_TIMEOUT;
-	if (!_res.retry)
-		_res.retry = 4;
-	if (!(_res.options & RES_INIT))
-		_res.options = RES_DEFAULT;
-
-	/*
-	 * This one used to initialize implicitly to zero, so unless the app
-	 * has set it to something in particular, we can randomize it now.
-	 */
-	if (!_res.id)
-		_res.id = res_randomid();
+	if (!preinit) {
+		statp->retrans = RES_TIMEOUT;
+		statp->retry = RES_DFLRETRY;
+		statp->options = RES_DEFAULT;
+		statp->id = res_randomid();
+	}
 
 #ifdef USELOOPBACK
-	_res.nsaddr.sin_addr = inet_makeaddr(IN_LOOPBACKNET, 1);
-	_res.nscount = 1;
+	statp->nsaddr.sin_addr = inet_makeaddr(IN_LOOPBACKNET, 1);
 #else
-	_res.nsaddr.sin_addr.s_addr = INADDR_ANY;
-	_res.nscount = 0;
+	statp->nsaddr.sin_addr.s_addr = INADDR_ANY;
 #endif
-	_res.nsaddr.sin_family = AF_INET;
-	_res.nsaddr.sin_port = htons(NAMESERVER_PORT);
-	_res.ndots = 1;
-	_res.pfcode = 0;
+	statp->nsaddr.sin_family = AF_INET;
+	statp->nsaddr.sin_port = htons(NAMESERVER_PORT);
+	statp->nscount = 1;
+	statp->ndots = 1;
+	statp->pfcode = 0;
+	statp->_sock = -1;
+	statp->_flags = 0;
+	statp->qhook = NULL;
+	statp->rhook = NULL;
 
 	/* Allow user to override the local domain definition */
 	if ((cp = __secure_getenv("LOCALDOMAIN")) != NULL) {
-		(void)strncpy(_res.defdname, cp, sizeof(_res.defdname) - 1);
+		(void)strncpy(statp->defdname, cp, sizeof(statp->defdname) - 1);
+		statp->defdname[sizeof(statp->defdname) - 1] = '\0';
 		haveenv++;
 
 		/*
@@ -224,10 +190,10 @@ res_init()
 		 * one that they want to use as an individual (even more
 		 * important now that the rfc1535 stuff restricts searches)
 		 */
-		cp = _res.defdname;
-		pp = _res.dnsrch;
+		cp = statp->defdname;
+		pp = statp->dnsrch;
 		*pp++ = cp;
-		for (n = 0; *cp && pp < _res.dnsrch + MAXDNSRCH; cp++) {
+		for (n = 0; *cp && pp < statp->dnsrch + MAXDNSRCH; cp++) {
 			if (*cp == '\n')	/* silly backwards compat */
 				break;
 			else if (*cp == ' ' || *cp == '\t') {
@@ -251,9 +217,6 @@ res_init()
 	(line[sizeof(name) - 1] == ' ' || \
 	 line[sizeof(name) - 1] == '\t'))
 
-#ifdef	NeXT
-	if (netinfo_res_init(&haveenv, &havesearch) == 0)
-#endif
 	if ((fp = fopen(_PATH_RESCONF, "r")) != NULL) {
 	    /* read the config file */
 	    while (fgets_unlocked(buf, sizeof(buf), fp) != NULL) {
@@ -269,8 +232,9 @@ res_init()
 			    cp++;
 		    if ((*cp == '\0') || (*cp == '\n'))
 			    continue;
-		    strncpy(_res.defdname, cp, sizeof(_res.defdname) - 1);
-		    if ((cp = strpbrk(_res.defdname, " \t\n")) != NULL)
+		    strncpy(statp->defdname, cp, sizeof(statp->defdname) - 1);
+		    statp->defdname[sizeof(statp->defdname) - 1] = '\0';
+		    if ((cp = strpbrk(statp->defdname, " \t\n")) != NULL)
 			    *cp = '\0';
 		    havesearch = 0;
 		    continue;
@@ -284,16 +248,18 @@ res_init()
 			    cp++;
 		    if ((*cp == '\0') || (*cp == '\n'))
 			    continue;
-		    strncpy(_res.defdname, cp, sizeof(_res.defdname) - 1);
-		    *__strchrnul (_res.defdname, '\n') = '\0';
+		    strncpy(statp->defdname, cp, sizeof(statp->defdname) - 1);
+		    statp->defdname[sizeof(statp->defdname) - 1] = '\0';
+		    if ((cp = strchr(statp->defdname, '\n')) != NULL)
+			    *cp = '\0';
 		    /*
 		     * Set search list to be blank-separated strings
 		     * on rest of line.
 		     */
-		    cp = _res.defdname;
-		    pp = _res.dnsrch;
+		    cp = statp->defdname;
+		    pp = statp->dnsrch;
 		    *pp++ = cp;
-		    for (n = 0; *cp && pp < _res.dnsrch + MAXDNSRCH; cp++) {
+		    for (n = 0; *cp && pp < statp->dnsrch + MAXDNSRCH; cp++) {
 			    if (*cp == ' ' || *cp == '\t') {
 				    *cp = 0;
 				    n = 1;
@@ -318,9 +284,9 @@ res_init()
 		    while (*cp == ' ' || *cp == '\t')
 			cp++;
 		    if ((*cp != '\0') && (*cp != '\n') && inet_aton(cp, &a)) {
-			_res.nsaddr_list[nserv].sin_addr = a;
-			_res.nsaddr_list[nserv].sin_family = AF_INET;
-			_res.nsaddr_list[nserv].sin_port =
+			statp->nsaddr_list[nserv].sin_addr = a;
+			statp->nsaddr_list[nserv].sin_family = AF_INET;
+			statp->nsaddr_list[nserv].sin_port =
 				htons(NAMESERVER_PORT);
 			nserv++;
 		    }
@@ -343,7 +309,7 @@ res_init()
 			n = *cp;
 			*cp = 0;
 			if (inet_aton(net, &a)) {
-			    _res.sort_list[nsort].addr = a;
+			    statp->sort_list[nsort].addr = a;
 			    if (ISSORTMASK(n)) {
 				*cp++ = n;
 				net = cp;
@@ -353,14 +319,14 @@ res_init()
 				n = *cp;
 				*cp = 0;
 				if (inet_aton(net, &a)) {
-				    _res.sort_list[nsort].mask = a.s_addr;
+				    statp->sort_list[nsort].mask = a.s_addr;
 				} else {
-				    _res.sort_list[nsort].mask =
-					net_mask(_res.sort_list[nsort].addr);
+				    statp->sort_list[nsort].mask = 
+					net_mask(statp->sort_list[nsort].addr);
 				}
 			    } else {
-				_res.sort_list[nsort].mask =
-				    net_mask(_res.sort_list[nsort].addr);
+				statp->sort_list[nsort].mask = 
+				    net_mask(statp->sort_list[nsort].addr);
 			    }
 			    nsort++;
 			}
@@ -370,35 +336,35 @@ res_init()
 		}
 #endif
 		if (MATCH(buf, "options")) {
-		    res_setoptions(buf + sizeof("options") - 1, "conf");
+		    res_setoptions(statp, buf + sizeof("options") - 1, "conf");
 		    continue;
 		}
 	    }
-	    if (nserv > _res.nscount)
-		_res.nscount = nserv;
+	    if (nserv > 1) 
+		statp->nscount = nserv;
 #ifdef RESOLVSORT
-	    _res.nsort = nsort;
+	    statp->nsort = nsort;
 #endif
 	    (void) fclose(fp);
 	}
-	if (_res.defdname[0] == 0 &&
-	    __gethostname(buf, sizeof(_res.defdname) - 1) == 0 &&
+	if (statp->defdname[0] == 0 &&
+	    __gethostname(buf, sizeof(statp->defdname) - 1) == 0 &&
 	    (cp = strchr(buf, '.')) != NULL)
-		strcpy(_res.defdname, cp + 1);
+		strcpy(statp->defdname, cp + 1);
 
 	/* find components of local domain that might be searched */
 	if (havesearch == 0) {
-		pp = _res.dnsrch;
-		*pp++ = _res.defdname;
+		pp = statp->dnsrch;
+		*pp++ = statp->defdname;
 		*pp = NULL;
 
 #ifndef RFC1535
 		dots = 0;
-		for (cp = _res.defdname; *cp; cp++)
+		for (cp = statp->defdname; *cp; cp++)
 			dots += (*cp == '.');
 
-		cp = _res.defdname;
-		while (pp < _res.dnsrch + MAXDFLSRCH) {
+		cp = statp->defdname;
+		while (pp < statp->dnsrch + MAXDFLSRCH) {
 			if (dots < LOCALDOMAINPARTS)
 				break;
 			cp = __rawmemchr(cp, '.') + 1;    /* we know there is one */
@@ -407,32 +373,31 @@ res_init()
 		}
 		*pp = NULL;
 #ifdef DEBUG
-		if (_res.options & RES_DEBUG) {
+		if (statp->options & RES_DEBUG) {
 			printf(";; res_init()... default dnsrch list:\n");
-			for (pp = _res.dnsrch; *pp; pp++)
+			for (pp = statp->dnsrch; *pp; pp++)
 				printf(";;\t%s\n", *pp);
 			printf(";;\t..END..\n");
 		}
-#endif /* DEBUG */
+#endif
 #endif /* !RFC1535 */
 	}
 
 	if ((cp = __secure_getenv("RES_OPTIONS")) != NULL)
-		res_setoptions(cp, "env");
-	_res.options |= RES_INIT;
+		res_setoptions(statp, cp, "env");
+	statp->options |= RES_INIT;
 	return (0);
 }
 
 static void
 internal_function
-res_setoptions(options, source)
-	char *options, *source;
+res_setoptions(res_state statp, const char *options, const char *source)
 {
-	char *cp = options;
+	const char *cp = options;
 	int i;
 
 #ifdef DEBUG
-	if (_res.options & RES_DEBUG)
+	if (statp->options & RES_DEBUG)
 		printf(";; res_setoptions(\"%s\", \"%s\")...\n",
 		       options, source);
 #endif
@@ -444,24 +409,41 @@ res_setoptions(options, source)
 		if (!strncmp(cp, "ndots:", sizeof("ndots:") - 1)) {
 			i = atoi(cp + sizeof("ndots:") - 1);
 			if (i <= RES_MAXNDOTS)
-				_res.ndots = i;
+				statp->ndots = i;
 			else
-				_res.ndots = RES_MAXNDOTS;
+				statp->ndots = RES_MAXNDOTS;
 #ifdef DEBUG
-			if (_res.options & RES_DEBUG)
-				printf(";;\tndots=%d\n", _res.ndots);
+			if (statp->options & RES_DEBUG)
+				printf(";;\tndots=%d\n", statp->ndots);
 #endif
+		} else if (!strncmp(cp, "timeout:", sizeof("timeout:") - 1)) {
+			i = atoi(cp + sizeof("timeout:") - 1);
+			if (i <= RES_MAXRETRANS)
+				statp->retrans = i;
+			else
+				statp->retrans = RES_MAXRETRANS;
+		} else if (!strncmp(cp, "attempts:", sizeof("attempts:") - 1)){
+			i = atoi(cp + sizeof("attempts:") - 1);
+			if (i <= RES_MAXRETRY)
+				statp->retry = i;
+			else
+				statp->retry = RES_MAXRETRY;
 		} else if (!strncmp(cp, "debug", sizeof("debug") - 1)) {
 #ifdef DEBUG
-			if (!(_res.options & RES_DEBUG)) {
+			if (!(statp->options & RES_DEBUG)) {
 				printf(";; res_setoptions(\"%s\", \"%s\")..\n",
 				       options, source);
-				_res.options |= RES_DEBUG;
+				statp->options |= RES_DEBUG;
 			}
 			printf(";;\tdebug\n");
 #endif
 		} else if (!strncmp(cp, "inet6", sizeof("inet6") - 1)) {
-			_res.options |= RES_USE_INET6;
+			statp->options |= RES_USE_INET6;
+		} else if (!strncmp(cp, "rotate", sizeof("rotate") - 1)) {
+			statp->options |= RES_ROTATE;
+		} else if (!strncmp(cp, "no-check-names",
+				    sizeof("no-check-names") - 1)) {
+			statp->options |= RES_NOCHECKNAME;
 		} else {
 			/* XXX - print a warning here? */
 		}
@@ -487,164 +469,8 @@ net_mask(in)		/* XXX - should really use system's version of this */
 }
 #endif
 
-#ifdef	NeXT
-static int
-netinfo_res_init(haveenv, havesearch)
-	int *haveenv;
-	int *havesearch;
-{
-    register	int n;
-    void	*domain, *parent;
-    ni_id	dir;
-    ni_status	status;
-    ni_namelist	nl;
-    int		nserv = 0;
-#ifdef RESOLVSORT
-    int		nsort = 0;
-#endif
-
-    status = ni_open(NULL, ".", &domain);
-    if (status == NI_OK) {
-	ni_setreadtimeout(domain, NI_TIMEOUT);
-	ni_setabort(domain, 1);
-
-	/* climb the NetInfo hierarchy to find a resolver directory */
-	while (status == NI_OK) {
-	    status = ni_pathsearch(domain, &dir, NI_PATH_RESCONF);
-	    if (status == NI_OK) {
-	    /* found a resolver directory */
-
-		if (*haveenv == 0) {
-		    /* get the default domain name */
-		    status = ni_lookupprop(domain, &dir, "domain", &nl);
-		    if (status == NI_OK && nl.ni_namelist_len > 0) {
-			(void)strncpy(_res.defdname,
-				      nl.ni_namelist_val[0],
-				      sizeof(_res.defdname) - 1);
-			_res.defdname[sizeof(_res.defdname) - 1] = '\0';
-			ni_namelist_free(&nl);
-			*havesearch = 0;
-		    }
-
-		    /* get search list */
-		    status = ni_lookupprop(domain, &dir, "search", &nl);
-		    if (status == NI_OK && nl.ni_namelist_len > 0) {
-			(void)strncpy(_res.defdname,
-				      nl.ni_namelist_val[0],
-				      sizeof(_res.defdname) - 1);
-			_res.defdname[sizeof(_res.defdname) - 1] = '\0';
-			/* copy  */
-			for (n = 0;
-			     n < nl.ni_namelist_len && n < MAXDNSRCH;
-			     n++) {
-			     /* duplicate up to MAXDNSRCH servers */
-			     char *cp = nl.ni_namelist_val[n];
-			    _res.dnsrch[n] =
-				strcpy((char *)malloc(strlen(cp) + 1), cp);
-			}
-			ni_namelist_free(&nl);
-			*havesearch = 1;
-		    }
-		}
-
-		/* get list of nameservers */
-		status = ni_lookupprop(domain, &dir, "nameserver", &nl);
-		if (status == NI_OK && nl.ni_namelist_len > 0) {
-		    /* copy up to MAXNS servers */
-		    for (n = 0;
-		         n < nl.ni_namelist_len && nserv < MAXNS;
-			 n++) {
-			struct in_addr a;
-
-			if (inet_aton(nl.ni_namelist_val[n], &a)) {
-			    _res.nsaddr_list[nserv].sin_addr = a;
-			    _res.nsaddr_list[nserv].sin_family = AF_INET;
-			    _res.nsaddr_list[nserv].sin_port =
-				htons(NAMESERVER_PORT);
-			    nserv++;
-			}
-		    }
-		    ni_namelist_free(&nl);
-		}
-
-		if (nserv > _res.nscount)
-		    _res.nscount = nserv;
-
-#ifdef RESOLVSORT
-		/* get sort order */
-		status = ni_lookupprop(domain, &dir, "sortlist", &nl);
-		if (status == NI_OK && nl.ni_namelist_len > 0) {
-
-		    /* copy up to MAXRESOLVSORT address/netmask pairs */
-		    for (n = 0;
-		         n < nl.ni_namelist_len && nsort < MAXRESOLVSORT;
-			 n++) {
-			char ch;
-			char *cp;
-			const char *sp;
-			struct in_addr a;
-
-			cp = NULL;
-			for (sp = sort_mask; *sp; sp++) {
-				char *cp1;
-				cp1 = strchr(nl.ni_namelist_val[n], *sp);
-				if (cp && cp1)
-					cp = (cp < cp1)? cp : cp1;
-				else if (cp1)
-					cp = cp1;
-			}
-			if (cp != NULL) {
-				ch = *cp;
-				*cp = '\0';
-				break;
-			}
-			if (inet_aton(nl.ni_namelist_val[n], &a)) {
-			    _res.sort_list[nsort].addr = a;
-			    if (*cp && ISSORTMASK(ch)) {
-			    	*cp++ = ch;
-			        if (inet_aton(cp, &a)) {
-				    _res.sort_list[nsort].mask = a.s_addr;
-				} else {
-				    _res.sort_list[nsort].mask =
-					net_mask(_res.sort_list[nsort].addr);
-				}
-			    } else {
-				_res.sort_list[nsort].mask =
-				    net_mask(_res.sort_list[nsort].addr);
-			    }
-			    nsort++;
-			}
-		    }
-		    ni_namelist_free(&nl);
-		}
-
-		_res.nsort = nsort;
-#endif
-
-		/* get resolver options */
-		status = ni_lookupprop(domain, &dir, "options", &nl);
-		if (status == NI_OK && nl.ni_namelist_len > 0) {
-		    res_setoptions(nl.ni_namelist_val[0], "conf");
-		    ni_namelist_free(&nl);
-		}
-
-		ni_free(domain);
-		return(1);	/* using DNS configuration from NetInfo */
-	    }
-
-	    status = ni_open(domain, "..", &parent);
-	    ni_free(domain);
-	    if (status == NI_OK)
-		domain = parent;
-	}
-    }
-    return(0);	/* if not using DNS configuration from NetInfo */
-}
-#endif	/* NeXT */
-
 u_int
-res_randomid()
-{
+res_randomid(void) {
 	struct timeval now;
 
 	__gettimeofday(&now, NULL);