To install the patch, do the following:

	# cd /usr/src/usr.bin			(or elsewhere)
	# tar xvfz .../openssh-1.2.3.tgz
	# patch -p0 < openbsd26_1.2.3.patch
	# cd ssh
	# make obj
	# make cleandir
	# make depend
	# make
	# make install
	# cp ssh_config sshd_config /etc

diff -Nurp openssh-1.2.3/freeaddrinfo.c ssh/freeaddrinfo.c
--- openssh-1.2.3/freeaddrinfo.c	Wed Dec 31 18:00:00 1969
+++ ssh/freeaddrinfo.c	Tue Feb 29 13:47:46 2000
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 1996, 1997, 1998, 1999, Craig Metz, 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 Craig Metz and
+ *      by other contributors.
+ * 4. Neither the name of the author nor the names of 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.
+ */
+
+#include <stdlib.h>
+#include <netdb.h>
+
+void
+freeaddrinfo(ai)
+	struct addrinfo *ai;
+{
+	struct addrinfo *p;
+
+	do {
+		p = ai;
+		ai = ai->ai_next;
+		if (p->ai_canonname)
+			free(p->ai_canonname);
+		free((void *)p);
+	} while (ai);
+}
diff -Nurp openssh-1.2.3/gai_strerror.c ssh/gai_strerror.c
--- openssh-1.2.3/gai_strerror.c	Wed Dec 31 18:00:00 1969
+++ ssh/gai_strerror.c	Tue Feb 29 15:49:58 2000
@@ -0,0 +1,79 @@
+/*	$OpenBSD: openbsd26_1.2.3.patch,v 1.1 2000/03/06 21:38:08 deraadt Exp $	*/
+
+/*
+ * %%% copyright-cmetz-97-bsd
+ * Copyright (c) 1997-1999, Craig Metz, 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 Craig Metz and
+ *      by other contributors.
+ * 4. Neither the name of the author nor the names of 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.
+ */
+
+/* gai_strerror() v1.38 */
+
+#include <sys/types.h>
+#include <netdb.h>
+#include <errno.h>
+
+#include "kame.h"
+
+char *
+gai_strerror(int errnum)
+{
+	switch (errnum) {
+	case 0:
+		return "no error";
+	case EAI_BADFLAGS:
+		return "invalid value for ai_flags";
+	case EAI_NONAME:
+		return "name or service is not known";
+	case EAI_AGAIN:
+		return "temporary failure in name resolution";
+	case EAI_FAIL:
+		return "non-recoverable failure in name resolution";
+	case EAI_NODATA:
+		return "no address associated with name";
+	case EAI_FAMILY:
+		return "ai_family not supported";
+	case EAI_SOCKTYPE:
+		return "ai_socktype not supported";
+	case EAI_SERVICE:
+		return "service not supported for ai_socktype";
+	case EAI_ADDRFAMILY:
+		return "address family for name not supported";
+	case EAI_MEMORY:
+		return "memory allocation failure";
+	case EAI_SYSTEM:
+		return "system error";
+	case EAI_BADHINTS:
+		return "invalid value for hints";
+	case EAI_PROTOCOL:
+		return "resolved protocol is unknown";
+	default:
+		return "unknown/invalid error";
+	}
+}
diff -Nurp openssh-1.2.3/getaddrinfo.c ssh/getaddrinfo.c
--- openssh-1.2.3/getaddrinfo.c	Wed Dec 31 18:00:00 1969
+++ ssh/getaddrinfo.c	Tue Feb 29 15:49:21 2000
@@ -0,0 +1,1784 @@
+/*	$OpenBSD: openbsd26_1.2.3.patch,v 1.1 2000/03/06 21:38:08 deraadt Exp $	*/
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
+ */
+
+/*
+ * Issues to be discussed:
+ * - Thread safe-ness must be checked.
+ * - Return values.  There are nonstandard return values defined and used
+ *   in the source code.  This is because RFC2553 is silent about which error
+ *   code must be returned for which situation.
+ * - IPv4 classful (shortened) form.  RFC2553 is silent about it.  XNET 5.2
+ *   says to use inet_aton() to convert IPv4 numeric to binary (alows
+ *   classful form as a result).
+ *   current code - disallow classful form for IPv4 (due to use of inet_pton).
+ * - freeaddrinfo(NULL).  RFC2553 is silent about it.  XNET 5.2 says it is
+ *   invalid.
+ *   current code - SEGV on freeaddrinfo(NULL)
+ * Note:
+ * - We use getipnodebyname() just for thread-safeness.  There's no intent
+ *   to let it do PF_UNSPEC (actually we never pass PF_UNSPEC to
+ *   getipnodebyname().
+ * - The code filters out AFs that are not supported by the kernel,
+ *   when globbing NULL hostname (to loopback, or wildcard).  Is it the right
+ *   thing to do?  What is the relationship with post-RFC2553 AI_ADDRCONFIG
+ *   in ai_flags?
+ * - (post-2553) semantics of AI_ADDRCONFIG itself is too vague.
+ *   (1) what should we do against numeric hostname (2) what should we do
+ *   against NULL hostname (3) what is AI_ADDRCONFIG itself.  AF not ready?
+ *   non-loopback address configured?  global address configured?
+ * - To avoid search order issue, we have a big amount of code duplicate
+ *   from gethnamaddr.c and some other places.  The issues that there's no
+ *   lower layer function to lookup "IPv4 or IPv6" record.  Calling
+ *   gethostbyname2 from getaddrinfo will end up in wrong search order, as
+ *   follows:
+ *	- The code makes use of following calls when asked to resolver with
+ *	  ai_family  = PF_UNSPEC:
+ *		getipnodebyname(host, AF_INET6);
+ *		getipnodebyname(host, AF_INET);
+ *	  This will result in the following queries if the node is configure to
+ *	  prefer /etc/hosts than DNS:
+ *		lookup /etc/hosts for IPv6 address
+ *		lookup DNS for IPv6 address
+ *		lookup /etc/hosts for IPv4 address
+ *		lookup DNS for IPv4 address
+ *	  which may not meet people's requirement.
+ *	  The right thing to happen is to have underlying layer which does
+ *	  PF_UNSPEC lookup (lookup both) and return chain of addrinfos.
+ *	  This would result in a bit of code duplicate with _dns_ghbyname() and
+ *	  friends.
+ */
+
+#define INET6
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+#include <netdb.h>
+#include <resolv.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <errno.h>
+
+#include <syslog.h>
+#include <stdarg.h>
+
+#ifdef YP
+#include <rpc/rpc.h>
+#include <rpcsvc/yp_prot.h>
+#include <rpcsvc/ypclnt.h>
+#endif
+
+#include "kame.h"
+
+#define SUCCESS 0
+#define ANY 0
+#define YES 1
+#define NO  0
+
+static const char in_addrany[] = { 0, 0, 0, 0 };
+static const char in6_addrany[] = {
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+};
+static const char in_loopback[] = { 127, 0, 0, 1 }; 
+static const char in6_loopback[] = {
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
+};
+
+struct sockinet {
+	u_char	si_len;
+	u_char	si_family;
+	u_short	si_port;
+	u_int32_t si_scope_id;
+};
+
+static const struct afd {
+	int a_af;
+	int a_addrlen;
+	int a_socklen;
+	int a_off;
+	const char *a_addrany;
+	const char *a_loopback;	
+	int a_scoped;
+} afdl [] = {
+#ifdef INET6
+	{PF_INET6, sizeof(struct in6_addr),
+	 sizeof(struct sockaddr_in6),
+	 offsetof(struct sockaddr_in6, sin6_addr),
+	 in6_addrany, in6_loopback, 1},
+#endif
+	{PF_INET, sizeof(struct in_addr),
+	 sizeof(struct sockaddr_in),
+	 offsetof(struct sockaddr_in, sin_addr),
+	 in_addrany, in_loopback, 0},
+	{0, 0, 0, 0, NULL, NULL, 0},
+};
+
+struct explore {
+	int e_af;
+	int e_socktype;
+	int e_protocol;
+	const char *e_protostr;
+	int e_wild;
+#define WILD_AF(ex)		((ex)->e_wild & 0x01)
+#define WILD_SOCKTYPE(ex)	((ex)->e_wild & 0x02)
+#define WILD_PROTOCOL(ex)	((ex)->e_wild & 0x04)
+};
+
+static const struct explore explore[] = {
+#if 0
+	{ PF_LOCAL, 0, ANY, ANY, NULL, 0x01 },
+#endif
+#ifdef INET6
+	{ PF_INET6, SOCK_DGRAM, IPPROTO_UDP, "udp", 0x07 },
+	{ PF_INET6, SOCK_STREAM, IPPROTO_TCP, "tcp", 0x07 },
+	{ PF_INET6, SOCK_RAW, ANY, NULL, 0x05 },
+#endif
+	{ PF_INET, SOCK_DGRAM, IPPROTO_UDP, "udp", 0x07 },
+	{ PF_INET, SOCK_STREAM, IPPROTO_TCP, "tcp", 0x07 },
+	{ PF_INET, SOCK_RAW, ANY, NULL, 0x05 },
+	{ PF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, "udp", 0x07 },
+	{ PF_UNSPEC, SOCK_STREAM, IPPROTO_TCP, "tcp", 0x07 },
+	{ PF_UNSPEC, SOCK_RAW, ANY, NULL, 0x05 },
+	{ -1, 0, 0, NULL, 0 },
+};
+
+#ifdef INET6
+#define PTON_MAX	16
+#else
+#define PTON_MAX	4
+#endif
+
+#if PACKETSZ > 1024
+#define MAXPACKET	PACKETSZ
+#else
+#define MAXPACKET	1024
+#endif
+
+typedef union {
+	HEADER hdr;
+	u_char buf[MAXPACKET];
+} querybuf;
+
+struct res_target {
+	struct res_target *next;
+	const char *name;	/* domain name */
+	int class, type;	/* class and type of query */
+	u_char *answer;		/* buffer to put answer */
+	int anslen;		/* size of answer buffer */
+	int n;			/* result length */
+};
+
+static int str_isnumber __P((const char *));
+static int explore_fqdn __P((const struct addrinfo *, const char *,
+	const char *, struct addrinfo **));
+static int explore_null __P((const struct addrinfo *,
+	const char *, struct addrinfo **));
+static int explore_numeric __P((const struct addrinfo *, const char *,
+	const char *, struct addrinfo **));
+static int explore_numeric_scope __P((const struct addrinfo *, const char *,
+	const char *, struct addrinfo **));
+static int get_canonname __P((const struct addrinfo *,
+	struct addrinfo *, const char *));
+static struct addrinfo *get_ai __P((const struct addrinfo *,
+	const struct afd *, const char *));
+static int get_portmatch __P((const struct addrinfo *, const char *));
+static int get_port __P((struct addrinfo *, const char *, int));
+static const struct afd *find_afd __P((int));
+#ifdef AI_ADDRCONFIG
+static int addrconfig __P((const struct addrinfo *));
+#endif
+#ifdef INET6
+static int ip6_str2scopeid __P((char *, struct sockaddr_in6 *));
+#endif 
+
+static void _sethtent __P((void));
+static void _endhtent __P((void));
+static struct addrinfo * _gethtent __P((const char *, const struct addrinfo *));
+static struct addrinfo *_files_getaddrinfo __P((const char *,
+	const struct addrinfo *));
+
+#ifdef YP
+static struct addrinfo *_yphostent __P((char *, const struct addrinfo *));
+static struct addrinfo *_yp_getaddrinfo __P((const char *,
+	const struct addrinfo *));
+#endif
+
+static struct addrinfo *getanswer __P((const querybuf *, int, const char *, int,
+	const struct addrinfo *));
+static int res_queryN __P((const char *, struct res_target *));
+static int res_searchN __P((const char *, struct res_target *));
+static int res_querydomainN __P((const char *, const char *,
+	struct res_target *));
+static struct addrinfo *_dns_getaddrinfo __P((const char *,
+	const struct addrinfo *));
+
+
+/* XXX macros that make external reference is BAD. */
+
+#define GET_AI(ai, afd, addr) \
+do { \
+	/* external reference: pai, error, and label free */ \
+	(ai) = get_ai(pai, (afd), (addr)); \
+	if ((ai) == NULL) { \
+		error = EAI_MEMORY; \
+		goto free; \
+	} \
+} while (/*CONSTCOND*/0)
+
+#define GET_PORT(ai, serv) \
+do { \
+	/* external reference: error and label free */ \
+	error = get_port((ai), (serv), 0); \
+	if (error != 0) \
+		goto free; \
+} while (/*CONSTCOND*/0)
+
+#define GET_CANONNAME(ai, str) \
+do { \
+	/* external reference: pai, error and label free */ \
+	error = get_canonname(pai, (ai), (str)); \
+	if (error != 0) \
+		goto free; \
+} while (/*CONSTCOND*/0)
+
+#define ERR(err) \
+do { \
+	/* external reference: error, and label bad */ \
+	error = (err); \
+	goto bad; \
+} while (/*CONSTCOND*/0)
+
+#define MATCH_FAMILY(x, y, w) \
+	((x) == (y) || (/*CONSTCOND*/(w) && ((x) == PF_UNSPEC || (y) == PF_UNSPEC)))
+#define MATCH(x, y, w) \
+	((x) == (y) || (/*CONSTCOND*/(w) && ((x) == ANY || (y) == ANY)))
+
+static int
+str_isnumber(p)
+	const char *p;
+{
+	const char *q = (const char *)p;
+	while (*q) {
+		if (!isdigit(*q))
+			return NO;
+		q++;
+	}
+	return YES;
+}
+
+int
+getaddrinfo(hostname, servname, hints, res)
+	const char *hostname, *servname;
+	const struct addrinfo *hints;
+	struct addrinfo **res;
+{
+	struct addrinfo sentinel;
+	struct addrinfo *cur;
+	int error = 0;
+	struct addrinfo ai;
+	struct addrinfo ai0;
+	struct addrinfo *pai;
+	const struct explore *ex;
+
+	memset(&sentinel, 0, sizeof(sentinel));
+	cur = &sentinel;
+	pai = &ai;
+	pai->ai_flags = 0;
+	pai->ai_family = PF_UNSPEC;
+	pai->ai_socktype = ANY;
+	pai->ai_protocol = ANY;
+	pai->ai_addrlen = 0;
+	pai->ai_canonname = NULL;
+	pai->ai_addr = NULL;
+	pai->ai_next = NULL;
+	
+	if (hostname == NULL && servname == NULL)
+		return EAI_NONAME;
+	if (hints) {
+		/* error check for hints */
+		if (hints->ai_addrlen || hints->ai_canonname ||
+		    hints->ai_addr || hints->ai_next)
+			ERR(EAI_BADHINTS); /* xxx */
+		if (hints->ai_flags & ~AI_MASK)
+			ERR(EAI_BADFLAGS);
+		switch (hints->ai_family) {
+		case PF_UNSPEC:
+		case PF_INET:
+#ifdef INET6
+		case PF_INET6:
+#endif
+			break;
+		default:
+			ERR(EAI_FAMILY);
+		}
+		memcpy(pai, hints, sizeof(*pai));
+
+		/*
+		 * if both socktype/protocol are specified, check if they
+		 * are meaningful combination.
+		 */
+		if (pai->ai_socktype != ANY && pai->ai_protocol != ANY) {
+			for (ex = explore; ex->e_af >= 0; ex++) {
+				if (pai->ai_family != ex->e_af)
+					continue;
+				if (ex->e_socktype == ANY)
+					continue;
+				if (ex->e_protocol == ANY)
+					continue;
+				if (pai->ai_socktype == ex->e_socktype
+				 && pai->ai_protocol != ex->e_protocol) {
+					ERR(EAI_BADHINTS);
+				}
+			}
+		}
+	}
+
+	/*
+	 * check for special cases.  (1) numeric servname is disallowed if
+	 * socktype/protocol are left unspecified. (2) servname is disallowed
+	 * for raw and other inet{,6} sockets.
+	 */
+	if (MATCH_FAMILY(pai->ai_family, PF_INET, 1)
+#ifdef PF_INET6
+	 || MATCH_FAMILY(pai->ai_family, PF_INET6, 1)
+#endif
+	    ) {
+		ai0 = *pai;	/* backup *pai */
+
+		if (pai->ai_family == PF_UNSPEC) {
+#ifdef PF_INET6
+			pai->ai_family = PF_INET6;
+#else
+			pai->ai_family = PF_INET;
+#endif
+		}
+		error = get_portmatch(pai, servname);
+		if (error)
+			ERR(error);
+
+		*pai = ai0;
+	}
+
+	ai0 = *pai;
+
+	/* NULL hostname, or numeric hostname */
+	for (ex = explore; ex->e_af >= 0; ex++) {
+		*pai = ai0;
+
+		/* PF_UNSPEC entries are prepared for DNS queries only */
+		if (ex->e_af == PF_UNSPEC)
+			continue;
+
+		if (!MATCH_FAMILY(pai->ai_family, ex->e_af, WILD_AF(ex)))
+			continue;
+		if (!MATCH(pai->ai_socktype, ex->e_socktype, WILD_SOCKTYPE(ex)))
+			continue;
+		if (!MATCH(pai->ai_protocol, ex->e_protocol, WILD_PROTOCOL(ex)))
+			continue;
+
+		if (pai->ai_family == PF_UNSPEC)
+			pai->ai_family = ex->e_af;
+		if (pai->ai_socktype == ANY && ex->e_socktype != ANY)
+			pai->ai_socktype = ex->e_socktype;
+		if (pai->ai_protocol == ANY && ex->e_protocol != ANY)
+			pai->ai_protocol = ex->e_protocol;
+
+		if (hostname == NULL)
+			error = explore_null(pai, servname, &cur->ai_next);
+		else
+			error = explore_numeric_scope(pai, hostname, servname, &cur->ai_next);
+
+		if (error)
+			goto free;
+
+		while (cur && cur->ai_next)
+			cur = cur->ai_next;
+	}
+
+	/*
+	 * XXX
+	 * If numreic representation of AF1 can be interpreted as FQDN
+	 * representation of AF2, we need to think again about the code below.
+	 */
+	if (sentinel.ai_next)
+		goto good;
+
+	if (pai->ai_flags & AI_NUMERICHOST)
+		ERR(EAI_NONAME);
+	if (hostname == NULL)
+		ERR(EAI_NONAME);
+
+	/*
+	 * hostname as alphabetical name.
+	 * we would like to prefer AF_INET6 than AF_INET, so we'll make a
+	 * outer loop by AFs.
+	 */
+	for (ex = explore; ex->e_af >= 0; ex++) {
+		*pai = ai0;
+
+		/* require exact match for family field */
+		if (pai->ai_family != ex->e_af)
+			continue;
+
+		if (!MATCH(pai->ai_socktype, ex->e_socktype,
+				WILD_SOCKTYPE(ex))) {
+			continue;
+		}
+		if (!MATCH(pai->ai_protocol, ex->e_protocol,
+				WILD_PROTOCOL(ex))) {
+			continue;
+		}
+
+		if (pai->ai_socktype == ANY && ex->e_socktype != ANY)
+			pai->ai_socktype = ex->e_socktype;
+		if (pai->ai_protocol == ANY && ex->e_protocol != ANY)
+			pai->ai_protocol = ex->e_protocol;
+
+		error = explore_fqdn(pai, hostname, servname,
+			&cur->ai_next);
+
+		while (cur && cur->ai_next)
+			cur = cur->ai_next;
+	}
+
+	/* XXX */
+	if (sentinel.ai_next)
+		error = 0;
+
+	if (error)
+		goto free;
+	if (error == 0) {
+		if (sentinel.ai_next) {
+ good:
+			*res = sentinel.ai_next;
+			return SUCCESS;
+		} else
+			error = EAI_FAIL;
+	}
+ free:
+ bad:
+	if (sentinel.ai_next)
+		freeaddrinfo(sentinel.ai_next);
+	*res = NULL;
+	return error;
+}
+
+/*
+ * FQDN hostname, DNS lookup
+ */
+static int
+explore_fqdn(pai, hostname, servname, res)
+	const struct addrinfo *pai;
+	const char *hostname;
+	const char *servname;
+	struct addrinfo **res;
+{
+	struct addrinfo *result;
+	struct addrinfo *cur;
+	int error = 0;
+	char lookups[MAXDNSLUS];
+	int i;
+
+	result = NULL;
+
+#ifdef AI_ADDRCONFIG
+	/*
+	 * If AI_ADDRCONFIG is specified, check if we are expected to
+	 * return the address family or not.
+	 */
+	if ((pai->ai_flags & AI_ADDRCONFIG) != 0 && !addrconfig(pai))
+		return 0;
+#endif
+
+	/*
+	 * if the servname does not match socktype/protocol, ignore it.
+	 */
+	if (get_portmatch(pai, servname) != 0)
+		return 0;
+
+	if ((_res.options & RES_INIT) == 0 && res_init() == -1)
+		strncpy(lookups, "f", sizeof lookups);
+	else {
+		bcopy(_res.lookups, lookups, sizeof lookups);
+		if (lookups[0] == '\0')
+			strncpy(lookups, "bf", sizeof lookups);
+	}
+
+	for (i = 0; i < MAXDNSLUS && result == NULL && lookups[i]; i++) {
+		switch (lookups[i]) {
+#ifdef YP
+		case 'y':
+			result = _yp_getaddrinfo(hostname, pai);
+			break;
+#endif
+		case 'b':
+			result = _dns_getaddrinfo(hostname, pai);
+			break;
+		case 'f':
+			result = _files_getaddrinfo(hostname, pai);
+			break;
+		}
+	}
+	if (result) {
+		for (cur = result; cur; cur = cur->ai_next) {
+			GET_PORT(cur, servname);
+			/* canonname should be filled already */
+		}
+		*res = result;
+		return 0;
+	}
+
+free:
+	if (result)
+		freeaddrinfo(result);
+	return error;
+}
+
+/*
+ * hostname == NULL.
+ * passive socket -> anyaddr (0.0.0.0 or ::)
+ * non-passive socket -> localhost (127.0.0.1 or ::1)
+ */
+static int
+explore_null(pai, servname, res)
+	const struct addrinfo *pai;
+	const char *servname;
+	struct addrinfo **res;
+{
+	int s;
+	const struct afd *afd;
+	struct addrinfo *cur;
+	struct addrinfo sentinel;
+	int error;
+
+	*res = NULL;
+	sentinel.ai_next = NULL;
+	cur = &sentinel;
+
+	/*
+	 * filter out AFs that are not supported by the kernel
+	 * XXX errno?
+	 */
+	s = socket(pai->ai_family, SOCK_DGRAM, 0);
+	if (s < 0) {
+		if (errno != EMFILE)
+			return 0;
+	} else
+		close(s);
+
+	/*
+	 * if the servname does not match socktype/protocol, ignore it.
+	 */
+	if (get_portmatch(pai, servname) != 0)
+		return 0;
+
+	afd = find_afd(pai->ai_family);
+
+	if (pai->ai_flags & AI_PASSIVE) {
+		GET_AI(cur->ai_next, afd, afd->a_addrany);
+		/* xxx meaningless?
+		 * GET_CANONNAME(cur->ai_next, "anyaddr");
+		 */
+		GET_PORT(cur->ai_next, servname);
+	} else {
+		GET_AI(cur->ai_next, afd, afd->a_loopback);
+		/* xxx meaningless?
+		 * GET_CANONNAME(cur->ai_next, "localhost");
+		 */
+		GET_PORT(cur->ai_next, servname);
+	}
+	cur = cur->ai_next;
+
+	*res = sentinel.ai_next;
+	return 0;
+
+free:
+	if (sentinel.ai_next)
+		freeaddrinfo(sentinel.ai_next);
+	return error;
+}
+
+/*
+ * numeric hostname
+ */
+static int
+explore_numeric(pai, hostname, servname, res)
+	const struct addrinfo *pai;
+	const char *hostname;
+	const char *servname;
+	struct addrinfo **res;
+{
+	const struct afd *afd;
+	struct addrinfo *cur;
+	struct addrinfo sentinel;
+	int error;
+	char pton[PTON_MAX];
+	int flags;
+
+	*res = NULL;
+	sentinel.ai_next = NULL;
+	cur = &sentinel;
+
+	/*
+	 * if the servname does not match socktype/protocol, ignore it.
+	 */
+	if (get_portmatch(pai, servname) != 0)
+		return 0;
+
+	afd = find_afd(pai->ai_family);
+	flags = pai->ai_flags;
+
+	switch (afd->a_af) {
+#if 0 /*X/Open spec*/
+	case AF_INET:
+		if (inet_aton(hostname, (struct in_addr *)pton) == 1) {
+			if (pai->ai_family == afd->a_af ||
+			    pai->ai_family == PF_UNSPEC /*?*/) {
+				GET_AI(cur->ai_next, afd, pton);
+				GET_PORT(cur->ai_next, servname);
+				while (cur && cur->ai_next)
+					cur = cur->ai_next;
+			} else 
+				ERR(EAI_FAMILY);	/*xxx*/
+		}
+		break;
+#endif
+	default:
+		if (inet_pton(afd->a_af, hostname, pton) == 1) {
+			if (pai->ai_family == afd->a_af ||
+			    pai->ai_family == PF_UNSPEC /*?*/) {
+				GET_AI(cur->ai_next, afd, pton);
+				GET_PORT(cur->ai_next, servname);
+				while (cur && cur->ai_next)
+					cur = cur->ai_next;
+			} else 
+				ERR(EAI_FAMILY);	/*xxx*/
+		}
+		break;
+	}
+
+	*res = sentinel.ai_next;
+	return 0;
+
+free:
+bad:
+	if (sentinel.ai_next)
+		freeaddrinfo(sentinel.ai_next);
+	return error;
+}
+
+/*
+ * numeric hostname with scope
+ */
+static int
+explore_numeric_scope(pai, hostname, servname, res)
+	const struct addrinfo *pai;
+	const char *hostname;
+	const char *servname;
+	struct addrinfo **res;
+{
+#if !defined(SCOPE_DELIMITER) || !defined(INET6)
+	return explore_numeric(pai, hostname, servname, res);
+#else
+	const struct afd *afd;
+	struct addrinfo *cur;
+	int error;
+	char *cp, *hostname2 = NULL, *scope, *addr;
+	struct sockaddr_in6 *sin6;
+
+	/*
+	 * if the servname does not match socktype/protocol, ignore it.
+	 */
+	if (get_portmatch(pai, servname) != 0)
+		return 0;
+
+	afd = find_afd(pai->ai_family);
+	if (!afd->a_scoped)
+		return explore_numeric(pai, hostname, servname, res);
+
+	cp = strchr(hostname, SCOPE_DELIMITER);
+	if (cp == NULL)
+		return explore_numeric(pai, hostname, servname, res);
+
+#if 0
+	/*
+	 * Handle special case of <scope id><delimiter><scoped_address>
+	 */
+	hostname2 = strdup(hostname);
+	if (hostname2 == NULL)
+		return EAI_MEMORY;
+	/* terminate at the delimiter */
+	hostname2[cp - hostname] = '\0';
+	scope = hostname2;
+	addr = cp + 1;
+#else
+	/*
+	 * Handle special case of <scoped_address><delimiter><scope id>
+	 */
+	hostname2 = strdup(hostname);
+	if (hostname2 == NULL)
+		return EAI_MEMORY;
+	/* terminate at the delimiter */
+	hostname2[cp - hostname] = '\0';
+	addr = hostname2;
+	scope = cp + 1;
+#endif
+
+	error = explore_numeric(pai, addr, servname, res);
+	if (error == 0) {
+		int scopeid;
+
+		for (cur = *res; cur; cur = cur->ai_next) {
+			if (cur->ai_family != AF_INET6)
+				continue;
+			sin6 = (struct sockaddr_in6 *)cur->ai_addr;
+			if ((scopeid = ip6_str2scopeid(scope, sin6)) == -1) {
+				free(hostname2);
+				return(EAI_NONAME); /* XXX: is return OK? */
+			}
+			sin6->sin6_scope_id = scopeid;
+		}
+	}
+
+	free(hostname2);
+
+	return error;
+#endif
+}
+
+static int
+get_canonname(pai, ai, str)
+	const struct addrinfo *pai;
+	struct addrinfo *ai;
+	const char *str;
+{
+	if ((pai->ai_flags & AI_CANONNAME) != 0) {
+		ai->ai_canonname = (char *)malloc(strlen(str) + 1);
+		if (ai->ai_canonname == NULL)
+			return EAI_MEMORY;
+		strcpy(ai->ai_canonname, str);
+	}
+	return 0;
+}
+
+static struct addrinfo *
+get_ai(pai, afd, addr)
+	const struct addrinfo *pai;
+	const struct afd *afd;
+	const char *addr;
+{
+	char *p;
+	struct addrinfo *ai;
+
+	ai = (struct addrinfo *)malloc(sizeof(struct addrinfo)
+		+ (afd->a_socklen));
+	if (ai == NULL)
+		return NULL;
+
+	memcpy(ai, pai, sizeof(struct addrinfo));
+	ai->ai_addr = (struct sockaddr *)(ai + 1);
+	memset(ai->ai_addr, 0, (size_t)afd->a_socklen);
+	ai->ai_addr->sa_len = afd->a_socklen;
+	ai->ai_addrlen = afd->a_socklen;
+	ai->ai_addr->sa_family = ai->ai_family = afd->a_af;
+	p = (char *)(ai->ai_addr);
+	memcpy(p + afd->a_off, addr, (size_t)afd->a_addrlen);
+	return ai;
+}
+
+static int
+get_portmatch(ai, servname)
+	const struct addrinfo *ai;
+	const char *servname;
+{
+
+	/* get_port does not touch first argument. when matchonly == 1. */
+	return get_port((struct addrinfo *)ai, servname, 1);
+}
+
+static int
+get_port(ai, servname, matchonly)
+	struct addrinfo *ai;
+	const char *servname;
+	int matchonly;
+{
+	const char *proto;
+	struct servent *sp;
+	int port;
+	int allownumeric;
+
+	if (servname == NULL)
+		return 0;
+	switch (ai->ai_family) {
+	case AF_INET:
+#ifdef AF_INET6
+	case AF_INET6:
+#endif
+		break;
+	default:
+		return 0;
+	}
+
+	switch (ai->ai_socktype) {
+	case SOCK_RAW:
+		return EAI_SERVICE;
+	case SOCK_DGRAM:
+	case SOCK_STREAM:
+		allownumeric = 1;
+		break;
+	case ANY:
+		allownumeric = 0;
+		break;
+	default:
+		return EAI_SOCKTYPE;
+	}
+
+	if (str_isnumber(servname)) {
+		if (!allownumeric)
+			return EAI_SERVICE;
+		port = htons(atoi(servname));
+		if (port < 0 || port > 65535)
+			return EAI_SERVICE;
+	} else {
+		switch (ai->ai_socktype) {
+		case SOCK_DGRAM:
+			proto = "udp";
+			break;
+		case SOCK_STREAM:
+			proto = "tcp";
+			break;
+		default:
+			proto = NULL;
+			break;
+		}
+
+		if ((sp = getservbyname(servname, proto)) == NULL)
+			return EAI_SERVICE;
+		port = sp->s_port;
+	}
+
+	if (!matchonly) {
+		switch (ai->ai_family) {
+		case AF_INET:
+			((struct sockaddr_in *)ai->ai_addr)->sin_port = port;
+			break;
+#ifdef INET6
+		case AF_INET6:
+			((struct sockaddr_in6 *)ai->ai_addr)->sin6_port = port;
+			break;
+#endif
+		}
+	}
+
+	return 0;
+}
+
+static const struct afd *
+find_afd(af)
+	int af;
+{
+	const struct afd *afd;
+
+	if (af == PF_UNSPEC)
+		return NULL;
+	for (afd = afdl; afd->a_af; afd++) {
+		if (afd->a_af == af)
+			return afd;
+	}
+	return NULL;
+}
+
+#ifdef AI_ADDRCONFIG
+/*
+ * post-2553: AI_ADDRCONFIG check.  if we use getipnodeby* as backend, backend
+ * will take care of it.
+ * the semantics of AI_ADDRCONFIG is not defined well.  we are not sure
+ * if the code is right or not.
+ */
+static int
+addrconfig(pai)
+	const struct addrinfo *pai;
+{
+	int s;
+
+	/* XXX errno */
+	s = socket(pai->ai_family, SOCK_DGRAM, 0);
+	if (s < 0)
+		return 0;
+	close(s);
+	return 1;
+}
+#endif
+
+#ifdef INET6
+/* convert a string to a scope identifier. XXX: IPv6 specific */
+static int
+ip6_str2scopeid(scope, sin6)
+	char *scope;
+	struct sockaddr_in6 *sin6;
+{
+	int scopeid;
+	struct in6_addr *a6 = &sin6->sin6_addr;
+	char *ep;
+
+	if (IN6_IS_ADDR_LINKLOCAL(a6) || IN6_IS_ADDR_MC_LINKLOCAL(a6)) {
+		/*
+		 * We currently assume a one-to-one mapping between links
+		 * and interfaces, so we simply use interface indices for
+		 * like-local scopes.
+		 */
+		scopeid = if_nametoindex(scope);
+		if (scopeid == 0)
+			goto trynumeric;
+		return(scopeid);
+	}
+
+	/* still unclear about literal, allow numeric only - placeholder */
+	if (IN6_IS_ADDR_SITELOCAL(a6) || IN6_IS_ADDR_MC_SITELOCAL(a6))
+		goto trynumeric;
+	if (IN6_IS_ADDR_MC_ORGLOCAL(a6))
+		goto trynumeric;
+	else
+		goto trynumeric;	/* global */
+
+	/* try to convert to a numeric id as a last resort */
+  trynumeric:
+	scopeid = (int)strtoul(scope, &ep, 10);
+	if (*ep == '\0')
+		return scopeid;
+	else
+		return -1;
+}
+#endif 
+
+/* code duplicate with gethnamaddr.c */
+
+static const char AskedForGot[] =
+	"gethostby*.getanswer: asked for \"%s\", got \"%s\"";
+static FILE *hostf = NULL;
+
+static struct addrinfo *
+getanswer(answer, anslen, qname, qtype, pai)
+	const querybuf *answer;
+	int anslen;
+	const char *qname;
+	int qtype;
+	const struct addrinfo *pai;
+{
+	struct addrinfo sentinel, *cur;
+	struct addrinfo ai;
+	const struct afd *afd;
+	char *canonname;
+	const HEADER *hp;
+	const u_char *cp;
+	int n;
+	const u_char *eom;
+	char *bp;
+	int type, class, buflen, ancount, qdcount;
+	int haveanswer, had_error;
+	char tbuf[MAXDNAME];
+	const char *tname;
+	int (*name_ok) __P((const char *));
+	char hostbuf[8*1024];
+
+	memset(&sentinel, 0, sizeof(sentinel));
+	cur = &sentinel;
+
+	tname = qname;
+	canonname = NULL;
+	eom = answer->buf + anslen;
+	switch (qtype) {
+	case T_A:
+	case T_AAAA:
+	case T_ANY:	/*use T_ANY only for T_A/T_AAAA lookup*/
+		name_ok = res_hnok;
+		break;
+	default:
+		return (NULL);	/* XXX should be abort(); */
+	}
+	/*
+	 * find first satisfactory answer
+	 */
+	hp = &answer->hdr;
+	ancount = ntohs(hp->ancount);
+	qdcount = ntohs(hp->qdcount);
+	bp = hostbuf;
+	buflen = sizeof hostbuf;
+	cp = answer->buf + HFIXEDSZ;
+	if (qdcount != 1) {
+		h_errno = NO_RECOVERY;
+		return (NULL);
+	}
+	n = dn_expand(answer->buf, eom, cp, bp, buflen);
+	if ((n < 0) || !(*name_ok)(bp)) {
+		h_errno = NO_RECOVERY;
+		return (NULL);
+	}
+	cp += n + QFIXEDSZ;
+	if (qtype == T_A || qtype == T_AAAA || qtype == T_ANY) {
+		/* res_send() has already verified that the query name is the
+		 * same as the one we sent; this just gets the expanded name
+		 * (i.e., with the succeeding search-domain tacked on).
+		 */
+		n = strlen(bp) + 1;		/* for the \0 */
+		if (n >= MAXHOSTNAMELEN) {
+			h_errno = NO_RECOVERY;
+			return (NULL);
+		}
+		canonname = bp;
+		bp += n;
+		buflen -= n;
+		/* The qname can be abbreviated, but h_name is now absolute. */
+		qname = canonname;
+	}
+	haveanswer = 0;
+	had_error = 0;
+	while (ancount-- > 0 && cp < eom && !had_error) {
+		n = dn_expand(answer->buf, eom, cp, bp, buflen);
+		if ((n < 0) || !(*name_ok)(bp)) {
+			had_error++;
+			continue;
+		}
+		cp += n;			/* name */
+		type = _getshort(cp);
+ 		cp += INT16SZ;			/* type */
+		class = _getshort(cp);
+ 		cp += INT16SZ + INT32SZ;	/* class, TTL */
+		n = _getshort(cp);
+		cp += INT16SZ;			/* len */
+		if (class != C_IN) {
+			/* XXX - debug? syslog? */
+			cp += n;
+			continue;		/* XXX - had_error++ ? */
+		}
+		if ((qtype == T_A || qtype == T_AAAA || qtype == T_ANY) &&
+		    type == T_CNAME) {
+			n = dn_expand(answer->buf, eom, cp, tbuf, sizeof tbuf);
+			if ((n < 0) || !(*name_ok)(tbuf)) {
+				had_error++;
+				continue;
+			}
+			cp += n;
+			/* Get canonical name. */
+			n = strlen(tbuf) + 1;	/* for the \0 */
+			if (n > buflen || n >= MAXHOSTNAMELEN) {
+				had_error++;
+				continue;
+			}
+			strcpy(bp, tbuf);
+			canonname = bp;
+			bp += n;
+			buflen -= n;
+			continue;
+		}
+		if (qtype == T_ANY) {
+			if (!(type == T_A || type == T_AAAA)) {
+				cp += n;
+				continue;
+			}
+		} else if (type != qtype) {
+			if (type != T_KEY && type != T_SIG)
+				syslog(LOG_NOTICE|LOG_AUTH,
+	       "gethostby*.getanswer: asked for \"%s %s %s\", got type \"%s\"",
+				       qname, p_class(C_IN), p_type(qtype),
+				       p_type(type));
+			cp += n;
+			continue;		/* XXX - had_error++ ? */
+		}
+		switch (type) {
+		case T_A:
+		case T_AAAA:
+			if (strcasecmp(canonname, bp) != 0) {
+				syslog(LOG_NOTICE|LOG_AUTH,
+				       AskedForGot, canonname, bp);
+				cp += n;
+				continue;	/* XXX - had_error++ ? */
+			}
+			if (type == T_A && n != INADDRSZ) {
+				cp += n;
+				continue;
+			}
+			if (type == T_AAAA && n != IN6ADDRSZ) {
+				cp += n;
+				continue;
+			}
+			if (!haveanswer) {
+				int nn;
+
+				canonname = bp;
+				nn = strlen(bp) + 1;	/* for the \0 */
+				bp += nn;
+				buflen -= nn;
+			}
+
+			/* don't overwrite pai */
+			ai = *pai;
+			ai.ai_family = (type == T_A) ? AF_INET : AF_INET6;
+			afd = find_afd(ai.ai_family);
+			if (afd == NULL) {
+				cp += n;
+				continue;
+			}
+			cur->ai_next = get_ai(&ai, afd, cp);
+			if (cur->ai_next == NULL)
+				had_error++;
+			while (cur && cur->ai_next)
+				cur = cur->ai_next;
+			cp += n;
+			break;
+		default:
+			abort();
+		}
+		if (!had_error)
+			haveanswer++;
+	}
+	if (haveanswer) {
+		if (!canonname)
+			(void)get_canonname(pai, sentinel.ai_next, qname);
+		else
+			(void)get_canonname(pai, sentinel.ai_next, canonname);
+		h_errno = NETDB_SUCCESS;
+		return sentinel.ai_next;
+	}
+
+	h_errno = NO_RECOVERY;
+	return NULL;
+}
+
+/*ARGSUSED*/
+static struct addrinfo *
+_dns_getaddrinfo(name, pai)
+	const char *name;
+	const struct addrinfo *pai;
+{
+	struct addrinfo *ai;
+	querybuf buf, buf2;
+	struct addrinfo sentinel, *cur;
+	struct res_target q, q2;
+	int ancount;
+
+	memset(&q, 0, sizeof(q2));
+	memset(&q2, 0, sizeof(q2));
+	memset(&sentinel, 0, sizeof(sentinel));
+	cur = &sentinel;
+
+	switch (pai->ai_family) {
+	case AF_UNSPEC:
+		/* prefer IPv6 */
+		q.class = C_IN;
+		q.type = T_AAAA;
+		q.answer = buf.buf;
+		q.anslen = sizeof(buf);
+		q.next = &q2;
+		q2.class = C_IN;
+		q2.type = T_A;
+		q2.answer = buf2.buf;
+		q2.anslen = sizeof(buf2);
+		break;
+	case AF_INET:
+		q.class = C_IN;
+		q.type = T_A;
+		q.answer = buf.buf;
+		q.anslen = sizeof(buf);
+		break;
+	case AF_INET6:
+		q.class = C_IN;
+		q.type = T_AAAA;
+		q.answer = buf.buf;
+		q.anslen = sizeof(buf);
+		break;
+	default:
+		return NULL;
+	}
+	if ((ancount = res_searchN(name, &q)) < 0)
+		return NULL;
+	ai = getanswer(&buf, q.n, q.name, q.type, pai);
+	if (ai) {
+		cur->ai_next = ai;
+		while (cur && cur->ai_next)
+			cur = cur->ai_next;
+	}
+	if (q.next) {
+		ai = getanswer(&buf2, q2.n, q2.name, q2.type, pai);
+		if (ai)
+			cur->ai_next = ai;
+	}
+	return sentinel.ai_next;
+}
+
+static FILE *hostf;
+
+static void
+_sethtent()
+{
+	if (!hostf)
+		hostf = fopen(_PATH_HOSTS, "r" );
+	else
+		rewind(hostf);
+}
+
+static void
+_endhtent()
+{
+	if (hostf) {
+		(void) fclose(hostf);
+		hostf = NULL;
+	}
+}
+
+static struct addrinfo *
+_gethtent(name, pai)
+	const char *name;
+	const struct addrinfo *pai;
+{
+	char *p;
+	char *cp, *tname;
+	struct addrinfo hints, *res0, *res;
+	int error;
+	const char *addr;
+	char hostbuf[8*1024];
+
+	if (!hostf && !(hostf = fopen(_PATH_HOSTS, "r" )))
+		return (NULL);
+ again:
+	if (!(p = fgets(hostbuf, sizeof hostbuf, hostf)))
+		return (NULL);
+	if (*p == '#')
+		goto again;
+	if (!(cp = strpbrk(p, "#\n")))
+		goto again;
+	*cp = '\0';
+	if (!(cp = strpbrk(p, " \t")))
+		goto again;
+	*cp++ = '\0';
+	addr = p;
+	/* if this is not something we're looking for, skip it. */
+	while (cp && *cp) {
+		if (*cp == ' ' || *cp == '\t') {
+			cp++;
+			continue;
+		}
+		tname = cp;
+		if ((cp = strpbrk(cp, " \t")) != NULL)
+			*cp++ = '\0';
+		if (strcasecmp(name, tname) == 0)
+			goto found;
+	}
+	goto again;
+
+found:
+	hints = *pai;
+	hints.ai_flags = AI_NUMERICHOST;
+	error = getaddrinfo(addr, NULL, &hints, &res0);
+	if (error)
+		goto again;
+	for (res = res0; res; res = res->ai_next) {
+		/* cover it up */
+		res->ai_flags = pai->ai_flags;
+
+		if (pai->ai_flags & AI_CANONNAME) {
+			if (get_canonname(pai, res, name) != 0) {
+				freeaddrinfo(res0);
+				goto again;
+			}
+		}
+	}
+	return res0;
+}
+
+/*ARGSUSED*/
+static struct addrinfo *
+_files_getaddrinfo(name, pai)
+	const char *name;
+	const struct addrinfo *pai;
+{
+	struct addrinfo sentinel, *cur;
+	struct addrinfo *p;
+
+	memset(&sentinel, 0, sizeof(sentinel));
+	cur = &sentinel;
+
+	_sethtent();
+	while ((p = _gethtent(name, pai)) != NULL) {
+		cur->ai_next = p;
+		while (cur && cur->ai_next)
+			cur = cur->ai_next;
+	}
+	_endhtent();
+
+	return sentinel.ai_next;
+}
+
+#ifdef YP
+static char *__ypdomain;
+
+/*ARGSUSED*/
+static struct addrinfo *
+_yphostent(line, pai)
+	char *line;
+	const struct addrinfo *pai;
+{
+	struct addrinfo sentinel, *cur;
+	struct addrinfo hints, *res, *res0;
+	int error;
+	char *p = line;
+	const char *addr, *canonname;
+	char *nextline;
+	char *cp;
+	int more;
+
+	addr = canonname = NULL;
+
+nextline:
+	more = 0;
+
+	/* terminate line */
+	cp = strchr(p, '\n');
+	if (cp) {
+		*cp++ = '\0';
+		nextline = cp;
+	} else
+		nextline = NULL;
+
+	cp = strpbrk(p, " \t");
+	if (cp == NULL) {
+		if (canonname == NULL)
+			return (NULL);
+		else
+			goto done;
+	}
+	*cp++ = '\0';
+
+	addr = p;
+
+	while (cp && *cp) {
+		if (*cp == ' ' || *cp == '\t') {
+			cp++;
+			continue;
+		}
+		if (!canonname)
+			canonname = cp;
+		if ((cp = strpbrk(cp, " \t")) != NULL)
+			*cp++ = '\0';
+	}
+
+	hints = *pai;
+	hints.ai_flags = AI_NUMERICHOST;
+	error = getaddrinfo(addr, NULL, &hints, &res0);
+	if (error == 0) {
+		for (res = res0; res; res = res->ai_next) {
+			/* cover it up */
+			res->ai_flags = pai->ai_flags;
+
+			if (pai->ai_flags & AI_CANONNAME)
+				(void)get_canonname(pai, res, canonname);
+		}
+	}
+	if (res0) {
+		cur->ai_next = res0;
+		while (cur && cur->ai_next)
+			cur = cur->ai_next;
+	}
+
+	if (nextline) {
+		p = nextline;
+		goto nextline;
+	}
+
+done:
+	return sentinel.ai_next;
+}
+
+/*ARGSUSED*/
+static struct addrinfo *
+_yp_getaddrinfo(name, pai)
+	const char *name;
+	const struct addrinfo *pai;
+{
+	struct addrinfo sentinel, *cur;
+	struct addrinfo *ai = NULL;
+	static char *__ypcurrent;
+	int __ypcurrentlen, r;
+
+	memset(&sentinel, 0, sizeof(sentinel));
+	cur = &sentinel;
+
+	if (!__ypdomain) {
+		if (_yp_check(&__ypdomain) == 0)
+			return NULL;
+	}
+	if (__ypcurrent)
+		free(__ypcurrent);
+	__ypcurrent = NULL;
+
+	/* hosts.byname is only for IPv4 (Solaris8) */
+	if (pai->ai_family == PF_UNSPEC || pai->ai_family == PF_INET) {
+		r = yp_match(__ypdomain, "hosts.byname", name,
+			(int)strlen(name), &__ypcurrent, &__ypcurrentlen);
+		if (r == 0) {
+			struct addrinfo ai4;
+
+			ai4 = *pai;
+			ai4.ai_family = AF_INET;
+			ai = _yphostent(__ypcurrent, &ai4);
+			if (ai) {
+				cur->ai_next = ai;
+				while (cur && cur->ai_next)
+					cur = cur->ai_next;
+			}
+		}
+	}
+
+	/* ipnodes.byname can hold both IPv4/v6 */
+	r = yp_match(__ypdomain, "ipnodes.byname", name,
+		(int)strlen(name), &__ypcurrent, &__ypcurrentlen);
+	if (r == 0) {
+		ai = _yphostent(__ypcurrent, pai);
+		if (ai) {
+			cur->ai_next = ai;
+			while (cur && cur->ai_next)
+				cur = cur->ai_next;
+		}
+	}
+
+	return sentinel.ai_next;
+}
+#endif
+
+
+/* resolver logic */
+
+extern const char *__hostalias __P((const char *));
+extern int h_errno;
+
+/*
+ * Formulate a normal query, send, and await answer.
+ * Returned answer is placed in supplied buffer "answer".
+ * Perform preliminary check of answer, returning success only
+ * if no error is indicated and the answer count is nonzero.
+ * Return the size of the response on success, -1 on error.
+ * Error number is left in h_errno.
+ *
+ * Caller must parse answer and determine whether it answers the question.
+ */
+static int
+res_queryN(name, target)
+	const char *name;	/* domain name */
+	struct res_target *target;
+{
+	u_char buf[MAXPACKET];
+	HEADER *hp;
+	int n;
+	struct res_target *t;
+	int rcode;
+	int ancount;
+
+	rcode = NOERROR;
+	ancount = 0;
+
+	if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+		h_errno = NETDB_INTERNAL;
+		return (-1);
+	}
+
+	for (t = target; t; t = t->next) {
+		int class, type;
+		u_char *answer;
+		int anslen;
+
+		hp = (HEADER *)(void *)t->answer;
+		hp->rcode = NOERROR;	/* default */
+
+		/* make it easier... */
+		class = t->class;
+		type = t->type;
+		answer = t->answer;
+		anslen = t->anslen;
+#ifdef DEBUG
+		if (_res.options & RES_DEBUG)
+			printf(";; res_query(%s, %d, %d)\n", name, class, type);
+#endif
+
+		n = res_mkquery(QUERY, name, class, type, NULL, 0, NULL,
+		    buf, sizeof(buf));
+		if (n <= 0) {
+#ifdef DEBUG
+			if (_res.options & RES_DEBUG)
+				printf(";; res_query: mkquery failed\n");
+#endif
+			h_errno = NO_RECOVERY;
+			return (n);
+		}
+		n = res_send(buf, n, answer, anslen);
+		if (n < 0) {
+#ifdef DEBUG
+			if (_res.options & RES_DEBUG)
+				printf(";; res_query: send error\n");
+#endif
+			h_errno = TRY_AGAIN;
+			return (n);
+		}
+
+		if (hp->rcode != NOERROR || ntohs(hp->ancount) == 0) {
+			rcode = hp->rcode;	/* record most recent error */
+#ifdef DEBUG
+			if (_res.options & RES_DEBUG)
+				printf(";; rcode = %d, ancount=%d\n", hp->rcode,
+				    ntohs(hp->ancount));
+#endif
+			continue;
+		}
+
+		ancount += ntohs(hp->ancount);
+
+		t->n = n;
+	}
+
+	if (ancount == 0) {
+		switch (rcode) {
+		case NXDOMAIN:
+			h_errno = HOST_NOT_FOUND;
+			break;
+		case SERVFAIL:
+			h_errno = TRY_AGAIN;
+			break;
+		case NOERROR:
+			h_errno = NO_DATA;
+			break;
+		case FORMERR:
+		case NOTIMP:
+		case REFUSED:
+		default:
+			h_errno = NO_RECOVERY;
+			break;
+		}
+		return (-1);
+	}
+	return (ancount);
+}
+
+/*
+ * Formulate a normal query, send, and retrieve answer in supplied buffer.
+ * Return the size of the response on success, -1 on error.
+ * If enabled, implement search rules until answer or unrecoverable failure
+ * is detected.  Error code, if any, is left in h_errno.
+ */
+static int
+res_searchN(name, target)
+	const char *name;	/* domain name */
+	struct res_target *target;
+{
+	const char *cp, * const *domain;
+	HEADER *hp = (HEADER *)(void *)target->answer;	/*XXX*/
+	u_int dots;
+	int trailing_dot, ret, saved_herrno;
+	int got_nodata = 0, got_servfail = 0, tried_as_is = 0;
+
+	if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+		h_errno = NETDB_INTERNAL;
+		return (-1);
+	}
+
+	errno = 0;
+	h_errno = HOST_NOT_FOUND;	/* default, if we never query */
+	dots = 0;
+	for (cp = name; *cp; cp++)
+		dots += (*cp == '.');
+	trailing_dot = 0;
+	if (cp > name && *--cp == '.')
+		trailing_dot++;
+
+	/*
+	 * if there aren't any dots, it could be a user-level alias
+	 */
+	if (!dots && (cp = __hostalias(name)) != NULL)
+		return (res_queryN(cp, target));
+
+	/*
+	 * If there are dots in the name already, let's just give it a try
+	 * 'as is'.  The threshold can be set with the "ndots" option.
+	 */
+	saved_herrno = -1;
+	if (dots >= _res.ndots) {
+		ret = res_querydomainN(name, NULL, target);
+		if (ret > 0)
+			return (ret);
+		saved_herrno = h_errno;
+		tried_as_is++;
+	}
+
+	/*
+	 * We do at least one level of search if
+	 *	- there is no dot and RES_DEFNAME is set, or
+	 *	- there is at least one dot, there is no trailing dot,
+	 *	  and RES_DNSRCH is set.
+	 */
+	if ((!dots && (_res.options & RES_DEFNAMES)) ||
+	    (dots && !trailing_dot && (_res.options & RES_DNSRCH))) {
+		int done = 0;
+
+		for (domain = (const char * const *)_res.dnsrch;
+		   *domain && !done;
+		   domain++) {
+
+			ret = res_querydomainN(name, *domain, target);
+			if (ret > 0)
+				return (ret);
+
+			/*
+			 * If no server present, give up.
+			 * If name isn't found in this domain,
+			 * keep trying higher domains in the search list
+			 * (if that's enabled).
+			 * On a NO_DATA error, keep trying, otherwise
+			 * a wildcard entry of another type could keep us
+			 * from finding this entry higher in the domain.
+			 * If we get some other error (negative answer or
+			 * server failure), then stop searching up,
+			 * but try the input name below in case it's
+			 * fully-qualified.
+			 */
+			if (errno == ECONNREFUSED) {
+				h_errno = TRY_AGAIN;
+				return (-1);
+			}
+
+			switch (h_errno) {
+			case NO_DATA:
+				got_nodata++;
+				/* FALLTHROUGH */
+			case HOST_NOT_FOUND:
+				/* keep trying */
+				break;
+			case TRY_AGAIN:
+				if (hp->rcode == SERVFAIL) {
+					/* try next search element, if any */
+					got_servfail++;
+					break;
+				}
+				/* FALLTHROUGH */
+			default:
+				/* anything else implies that we're done */
+				done++;
+			}
+			/*
+			 * if we got here for some reason other than DNSRCH,
+			 * we only wanted one iteration of the loop, so stop.
+			 */
+			if (!(_res.options & RES_DNSRCH))
+			        done++;
+		}
+	}
+
+	/*
+	 * if we have not already tried the name "as is", do that now.
+	 * note that we do this regardless of how many dots were in the
+	 * name or whether it ends with a dot.
+	 */
+	if (!tried_as_is) {
+		ret = res_querydomainN(name, NULL, target);
+		if (ret > 0)
+			return (ret);
+	}
+
+	/*
+	 * if we got here, we didn't satisfy the search.
+	 * if we did an initial full query, return that query's h_errno
+	 * (note that we wouldn't be here if that query had succeeded).
+	 * else if we ever got a nodata, send that back as the reason.
+	 * else send back meaningless h_errno, that being the one from
+	 * the last DNSRCH we did.
+	 */
+	if (saved_herrno != -1)
+		h_errno = saved_herrno;
+	else if (got_nodata)
+		h_errno = NO_DATA;
+	else if (got_servfail)
+		h_errno = TRY_AGAIN;
+	return (-1);
+}
+
+/*
+ * Perform a call on res_query on the concatenation of name and domain,
+ * removing a trailing dot from name if domain is NULL.
+ */
+static int
+res_querydomainN(name, domain, target)
+	const char *name, *domain;
+	struct res_target *target;
+{
+	char nbuf[MAXDNAME];
+	const char *longname = nbuf;
+	size_t n, d;
+
+	if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
+		h_errno = NETDB_INTERNAL;
+		return (-1);
+	}
+#ifdef DEBUG
+	if (_res.options & RES_DEBUG)
+		printf(";; res_querydomain(%s, %s)\n",
+			name, domain?domain:"<Nil>");
+#endif
+	if (domain == NULL) {
+		/*
+		 * Check for trailing '.';
+		 * copy without '.' if present.
+		 */
+		n = strlen(name);
+		if (n >= MAXDNAME) {
+			h_errno = NO_RECOVERY;
+			return (-1);
+		}
+		if (n-- != 0 && name[n] == '.') {
+			strncpy(nbuf, name, n);
+			nbuf[n] = '\0';
+		} else
+			longname = name;
+	} else {
+		n = strlen(name);
+		d = strlen(domain);
+		if (n + d + 1 >= MAXDNAME) {
+			h_errno = NO_RECOVERY;
+			return (-1);
+		}
+		sprintf(nbuf, "%s.%s", name, domain);
+	}
+	return (res_queryN(longname, target));
+}
diff -Nurp openssh-1.2.3/getnameinfo.c ssh/getnameinfo.c
--- openssh-1.2.3/getnameinfo.c	Wed Dec 31 18:00:00 1969
+++ ssh/getnameinfo.c	Tue Feb 29 13:17:42 2000
@@ -0,0 +1,319 @@
+/*	$OpenBSD: openbsd26_1.2.3.patch,v 1.1 2000/03/06 21:38:08 deraadt Exp $	*/
+
+/*
+ * Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+ * 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. Neither the name of the project 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 PROJECT 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 PROJECT 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.
+ */
+
+/*
+ * Issues to be discussed:
+ * - Thread safe-ness must be checked
+ * - Return values.  There seems to be no standard for return value (RFC2553)
+ *   but INRIA implementation returns EAI_xxx defined for getaddrinfo().
+ * - RFC2553 says that we should raise error on short buffer.  X/Open says
+ *   we need to truncate the result.  We obey RFC2553 (and X/Open should be
+ *   modified).
+ */
+
+#define INET6
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <arpa/nameser.h>
+#include <netdb.h>
+#include <resolv.h>
+#include <string.h>
+#include <stddef.h>
+
+#define SUCCESS 0
+#define ANY 0
+#define YES 1
+#define NO  0
+
+static struct afd {
+	int a_af;
+	int a_addrlen;
+	int a_socklen;
+	int a_off;
+} afdl [] = {
+#ifdef INET6
+	{PF_INET6, sizeof(struct in6_addr), sizeof(struct sockaddr_in6),
+		offsetof(struct sockaddr_in6, sin6_addr)},
+#endif
+	{PF_INET, sizeof(struct in_addr), sizeof(struct sockaddr_in),
+		offsetof(struct sockaddr_in, sin_addr)},
+	{0, 0, 0},
+};
+
+struct sockinet {
+	u_char	si_len;
+	u_char	si_family;
+	u_short	si_port;
+};
+
+#ifdef INET6
+static char *ip6_sa2str __P((struct sockaddr_in6 *, char *, int));
+#endif 
+
+#define ENI_NOSOCKET 	0
+#define ENI_NOSERVNAME	1
+#define ENI_NOHOSTNAME	2
+#define ENI_MEMORY	3
+#define ENI_SYSTEM	4
+#define ENI_FAMILY	5
+#define ENI_SALEN	6
+
+int
+getnameinfo(sa, salen, host, hostlen, serv, servlen, flags)
+	const struct sockaddr *sa;
+	size_t salen;
+	char *host;
+	size_t hostlen;
+	char *serv;
+	size_t servlen;
+	int flags;
+{
+	struct afd *afd;
+	struct servent *sp;
+	struct hostent *hp;
+	u_short port;
+	int family, i;
+	char *addr, *p;
+	u_int32_t v4a;
+	int h_error;
+	char numserv[512];
+	char numaddr[512];
+
+	if (sa == NULL)
+		return ENI_NOSOCKET;
+
+	if (sa->sa_len != salen)
+		return ENI_SALEN;
+	
+	family = sa->sa_family;
+	for (i = 0; afdl[i].a_af; i++)
+		if (afdl[i].a_af == family) {
+			afd = &afdl[i];
+			goto found;
+		}
+	return ENI_FAMILY;
+	
+ found:
+	if (salen != afd->a_socklen)
+		return ENI_SALEN;
+	
+	port = ((struct sockinet *)sa)->si_port; /* network byte order */
+	addr = (char *)sa + afd->a_off;
+
+	if (serv == NULL || servlen == 0) {
+		/*
+		 * do nothing in this case.
+		 * in case you are wondering if "&&" is more correct than
+		 * "||" here: RFC2553 says that serv == NULL OR servlen == 0
+		 * means that the caller does not want the result.
+		 */
+	} else {
+		if (flags & NI_NUMERICSERV)
+			sp = NULL;
+		else {
+			sp = getservbyport(port,
+				(flags & NI_DGRAM) ? "udp" : "tcp");
+		}
+		if (sp) {
+			if (strlen(sp->s_name) > servlen)
+				return ENI_MEMORY;
+			strcpy(serv, sp->s_name);
+		} else {
+			snprintf(numserv, sizeof(numserv), "%d", ntohs(port));
+			if (strlen(numserv) > servlen)
+				return ENI_MEMORY;
+			strcpy(serv, numserv);
+		}
+	}
+
+	switch (sa->sa_family) {
+	case AF_INET:
+		v4a = (u_int32_t)
+			ntohl(((struct sockaddr_in *)sa)->sin_addr.s_addr);
+		if (IN_MULTICAST(v4a) || IN_EXPERIMENTAL(v4a))
+			flags |= NI_NUMERICHOST;
+		v4a >>= IN_CLASSA_NSHIFT;
+		if (v4a == 0)
+			flags |= NI_NUMERICHOST;			
+		break;
+#ifdef INET6
+	case AF_INET6:
+	    {
+		struct sockaddr_in6 *sin6;
+		sin6 = (struct sockaddr_in6 *)sa;
+		switch (sin6->sin6_addr.s6_addr[0]) {
+		case 0x00:
+			if (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr))
+				;
+			else if (IN6_IS_ADDR_LOOPBACK(&sin6->sin6_addr))
+				;
+			else
+				flags |= NI_NUMERICHOST;
+			break;
+		default:
+			if (IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr)) {
+				flags |= NI_NUMERICHOST;
+			}
+			else if (IN6_IS_ADDR_MULTICAST(&sin6->sin6_addr))
+				flags |= NI_NUMERICHOST;
+			break;
+		}
+	    }
+		break;
+#endif
+	}
+	if (host == NULL || hostlen == 0) {
+		/*
+		 * do nothing in this case.
+		 * in case you are wondering if "&&" is more correct than
+		 * "||" here: RFC2553 says that host == NULL OR hostlen == 0
+		 * means that the caller does not want the result.
+		 */
+	} else if (flags & NI_NUMERICHOST) {
+		int numaddrlen;
+
+		/* NUMERICHOST and NAMEREQD conflicts with each other */
+		if (flags & NI_NAMEREQD)
+			return ENI_NOHOSTNAME;
+		if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr))
+		    == NULL)
+			return ENI_SYSTEM;
+		numaddrlen = strlen(numaddr);
+		if (numaddrlen + 1 > hostlen) /* don't forget terminator */
+			return ENI_MEMORY;
+		strcpy(host, numaddr);
+#if defined(INET6) && defined(NI_WITHSCOPEID)
+		if (afd->a_af == AF_INET6 &&
+		    (IN6_IS_ADDR_LINKLOCAL((struct in6_addr *)addr) ||
+		     IN6_IS_ADDR_MULTICAST((struct in6_addr *)addr)) &&
+		    ((struct sockaddr_in6 *)sa)->sin6_scope_id) {
+#ifndef ALWAYS_WITHSCOPE
+			if (flags & NI_WITHSCOPEID)
+#endif /* !ALWAYS_WITHSCOPE */
+			{
+				char scopebuf[MAXHOSTNAMELEN], *s;
+				int scopelen;
+
+				if ((s = ip6_sa2str((struct sockaddr_in6 *)sa,
+						    scopebuf, 0)) == NULL)
+					/* XXX what should we do? */
+					strcpy(scopebuf, "0");
+
+				scopelen = strlen(scopebuf);
+				if (scopelen + 1 + numaddrlen + 1 > hostlen)
+					return ENI_MEMORY;
+
+#if 0
+				/*
+				 * construct <scopeid><delim><numeric-addr>
+				 */
+				/*
+				 * Shift the host string to allocate
+				 * space for the scope ID part.
+				 */
+				memmove(host + scopelen + 1, host,
+					numaddrlen);
+				/* copy the scope ID and the delimiter */
+				memcpy(host, scopebuf, scopelen);
+				host[scopelen] = SCOPE_DELIMITER;
+				host[scopelen + 1 + numaddrlen] = '\0';
+#else
+				/*
+				 * construct <numeric-addr><delim><scopeid>
+				 */
+				memcpy(host + numaddrlen + 1, scopebuf,
+				    scopelen);
+				host[numaddrlen] = SCOPE_DELIMITER;
+				host[numaddrlen + 1 + scopelen] = '\0';
+#endif
+			}
+		}
+#endif /* INET6 */
+	} else {
+		hp = gethostbyaddr(addr, afd->a_addrlen, afd->a_af);
+		h_error = h_errno;
+
+		if (hp) {
+			if (flags & NI_NOFQDN) {
+				p = strchr(hp->h_name, '.');
+				if (p) *p = '\0';
+			}
+			if (strlen(hp->h_name) > hostlen) {
+				return ENI_MEMORY;
+			}
+			strcpy(host, hp->h_name);
+		} else {
+			if (flags & NI_NAMEREQD)
+				return ENI_NOHOSTNAME;
+			if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr))
+			    == NULL)
+				return ENI_NOHOSTNAME;
+			if (strlen(numaddr) > hostlen)
+				return ENI_MEMORY;
+			strcpy(host, numaddr);
+		}
+	}
+	return SUCCESS;
+}
+
+#ifdef INET6
+/* ARGSUSED */
+static char *
+ip6_sa2str(sa6, buf, flags)
+	struct sockaddr_in6 *sa6;
+	char *buf;
+	int flags;
+{
+	unsigned int ifindex = (unsigned int)sa6->sin6_scope_id;
+	struct in6_addr *a6 = &sa6->sin6_addr;
+
+#ifdef notyet
+	if (flags & NI_NUMERICSCOPE) {
+		sprintf(buf, "%d", sa6->sin6_scope_id);
+		return(buf);
+	}
+#endif
+ 
+	if (IN6_IS_ADDR_LINKLOCAL(a6) || IN6_IS_ADDR_MC_LINKLOCAL(a6))
+		return(if_indextoname(ifindex, buf));
+
+	if (IN6_IS_ADDR_SITELOCAL(a6) || IN6_IS_ADDR_MC_SITELOCAL(a6))
+		return(NULL);	/* XXX */
+	if (IN6_IS_ADDR_MC_ORGLOCAL(a6))
+		return(NULL);	/* XXX */
+
+	return(NULL);		/* XXX */
+}
+#endif 
diff -Nurp openssh-1.2.3/includes.h ssh/includes.h
--- openssh-1.2.3/includes.h	Thu Dec 16 12:06:12 1999
+++ ssh/includes.h	Tue Feb 29 15:51:13 2000
@@ -55,6 +55,8 @@ static /**/const char *const rcsid[] = {
 #include <paths.h>
 #include <dirent.h>
 
+#include "kame.h"
+
 #include "version.h"
 
 /* Define this to be the path of the xauth program. */
diff -Nurp openssh-1.2.3/kame.h ssh/kame.h
--- openssh-1.2.3/kame.h	Wed Dec 31 18:00:00 1969
+++ ssh/kame.h	Tue Feb 29 15:51:57 2000
@@ -0,0 +1,9 @@
+/* defines from OpenBSD-current */
+
+#define AI_MASK                (AI_PASSIVE | AI_CANONNAME | AI_NUMERICHOST)
+#define EAI_BADHINTS   -12     /* invalid value for hints */
+#define EAI_PROTOCOL   -13     /* resolved protocol is unknown */
+
+#ifdef freeaddrinfo
+#undef freeaddrinfo
+#endif
diff -Nurp openssh-1.2.3/lib/Makefile ssh/lib/Makefile
--- openssh-1.2.3/lib/Makefile	Mon Dec  6 15:17:50 1999
+++ ssh/lib/Makefile	Tue Feb 29 13:48:15 2000
@@ -6,6 +6,8 @@ SRCS=   authfd.c authfile.c bufaux.c buf
 	hostfile.c log.c match.c mpaux.c nchan.c packet.c readpass.c \
 	rsa.c tildexpand.c ttymodes.c uidswap.c xmalloc.c atomicio.c
 
+SRCS+=	getaddrinfo.c getnameinfo.c freeaddrinfo.c gai_strerror.c
+
 NOPROFILE= yes
 NOPIC=	yes
 
diff -Nurp openssh-1.2.3/sshconnect.c ssh/sshconnect.c
--- openssh-1.2.3/sshconnect.c	Tue Jan 18 13:26:19 2000
+++ ssh/sshconnect.c	Tue Feb 29 13:02:09 2000
@@ -148,7 +148,9 @@ ssh_create_socket(uid_t original_real_ui
 	 */
 	if (privileged) {
 		int p = IPPORT_RESERVED - 1;
-		sock = rresvport_af(&p, family);
+		if (family != AF_INET)
+			return -1;
+		sock = rresvport(&p);
 		if (sock < 0)
 			fatal("rresvport: af=%d %.100s", family, strerror(errno));
 		debug("Allocated local port %d.", p);