auto import from //depot/cupcake/@135843

41 files changed, 0 insertions, 15819 deletions

diff --git a/libc/netbsd/gethnamaddr.c b/libc/netbsd/gethnamaddr.c
deleted file mode 100644
index 1c219b2..0000000
--- a/libc/netbsd/gethnamaddr.c
+++ /dev/null
@@ -1,1210 +0,0 @@
-/*	$NetBSD: gethnamaddr.c,v 1.70 2006/03/22 00:03:51 christos Exp $	*/
-
-/*
- * ++Copyright++ 1985, 1988, 1993
- * -
- * Copyright (c) 1985, 1988, 1993
- *    The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * -
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.
- *
- * 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, and that
- * the name of Digital Equipment Corporation not be used in advertising or
- * publicity pertaining to distribution of the document or software without
- * specific, written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
- * CORPORATION 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.
- * -
- * --Copyright--
- */
-
-#include <sys/cdefs.h>
-#include <sys/types.h>
-
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include "arpa_nameser.h"
-#include "resolv_private.h"
-#include "resolv_cache.h"
-#include <assert.h>
-#include <ctype.h>
-#include <errno.h>
-#include <netdb.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <syslog.h>
-
-#ifndef LOG_AUTH
-# define LOG_AUTH 0
-#endif
-
-#define MULTI_PTRS_ARE_ALIASES 1	/* XXX - experimental */
-
-#include "nsswitch.h"
-#include <stdlib.h>
-#include <string.h>
-
-static const char const AskedForGot[] =
-			  "gethostby*.getanswer: asked for \"%s\", got \"%s\"";
-
-#define	MAXPACKET	(64*1024)
-
-typedef union {
-    HEADER hdr;
-    u_char buf[MAXPACKET];
-} querybuf;
-
-typedef union {
-    int32_t al;
-    char ac;
-} align;
-
-#ifdef DEBUG
-static void dprintf(const char *, res_state, ...)
-	__attribute__((__format__(__printf__, 1, 3)));
-#endif
-static struct hostent *getanswer(const querybuf *, int, const char *, int,
-    res_state);
-static void map_v4v6_address(const char *, char *);
-static void map_v4v6_hostent(struct hostent *, char **, char *);
-static void addrsort(char **, int, res_state);
-
-void _sethtent(int);
-void _endhtent(void);
-struct hostent *_gethtent(void);
-void ht_sethostent(int);
-void ht_endhostent(void);
-struct hostent *ht_gethostbyname(char *);
-struct hostent *ht_gethostbyaddr(const char *, int, int);
-void dns_service(void);
-#undef dn_skipname
-int dn_skipname(const u_char *, const u_char *);
-int _gethtbyaddr(void *, void *, va_list);
-int _gethtbyname(void *, void *, va_list);
-struct hostent *_gethtbyname2(const char *, int);
-int _dns_gethtbyaddr(void *, void *, va_list);
-int _dns_gethtbyname(void *, void *, va_list);
-
-static struct hostent *gethostbyname_internal(const char *, int, res_state);
-
-static const ns_src default_dns_files[] = {
-	{ NSSRC_FILES, 	NS_SUCCESS },
-	{ NSSRC_DNS, 	NS_SUCCESS },
-	{ 0, 0 }
-};
-
-
-#ifdef DEBUG
-static void
-dprintf(const char *msg, res_state res, ...)
-{
-	assert(msg != NULL);
-
-	if (res->options & RES_DEBUG) {
-		int save = errno;
-		va_list ap;
-
-		va_start (ap, res);
-		vprintf(msg, ap);
-		va_end (ap);
-
-		errno = save;
-	}
-}
-#else
-# define dprintf(msg, res, num) ((void)0) /*nada*/
-#endif
-
-#define BOUNDED_INCR(x) \
-	do { \
-		cp += (x); \
-		if (cp > eom) { \
-			h_errno = NO_RECOVERY; \
-			return NULL; \
-		} \
-	} while (/*CONSTCOND*/0)
-
-#define BOUNDS_CHECK(ptr, count) \
-	do { \
-		if ((ptr) + (count) > eom) { \
-			h_errno = NO_RECOVERY; \
-			return NULL; \
-		} \
-	} while (/*CONSTCOND*/0)
-
-static struct hostent *
-getanswer(const querybuf *answer, int anslen, const char *qname, int qtype,
-    res_state res)
-{
-	const HEADER *hp;
-	const u_char *cp;
-	int n;
-	const u_char *eom, *erdata;
-	char *bp, **ap, **hap, *ep;
-	int type, class, ancount, qdcount;
-	int haveanswer, had_error;
-	int toobig = 0;
-	char tbuf[MAXDNAME];
-	const char *tname;
-	int (*name_ok)(const char *);
-	res_static  rs = __res_get_static();
-
-	assert(answer != NULL);
-	assert(qname != NULL);
-
-	tname = qname;
-	rs->host.h_name = NULL;
-	eom = answer->buf + anslen;
-	switch (qtype) {
-	case T_A:
-	case T_AAAA:
-		name_ok = res_hnok;
-		break;
-	case T_PTR:
-		name_ok = res_dnok;
-		break;
-	default:
-		return NULL;	/* XXX should be abort(); */
-	}
-	/*
-	 * find first satisfactory answer
-	 */
-	hp = &answer->hdr;
-	ancount = ntohs(hp->ancount);
-	qdcount = ntohs(hp->qdcount);
-	bp = rs->hostbuf;
-	ep = rs->hostbuf + sizeof rs->hostbuf;
-	cp = answer->buf;
-	BOUNDED_INCR(HFIXEDSZ);
-	if (qdcount != 1) {
-		h_errno = NO_RECOVERY;
-		return NULL;
-	}
-	n = dn_expand(answer->buf, eom, cp, bp, ep - bp);
-	if ((n < 0) || !(*name_ok)(bp)) {
-		h_errno = NO_RECOVERY;
-		return NULL;
-	}
-	BOUNDED_INCR(n + QFIXEDSZ);
-	if (qtype == T_A || qtype == T_AAAA) {
-		/* 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;
-		}
-		rs->host.h_name = bp;
-		bp += n;
-		/* The qname can be abbreviated, but h_name is now absolute. */
-		qname = rs->host.h_name;
-	}
-	ap = rs->host_aliases;
-	*ap = NULL;
-	rs->host.h_aliases = rs->host_aliases;
-	hap = rs->h_addr_ptrs;
-	*hap = NULL;
-	rs->host.h_addr_list = rs->h_addr_ptrs;
-	haveanswer = 0;
-	had_error = 0;
-	while (ancount-- > 0 && cp < eom && !had_error) {
-		n = dn_expand(answer->buf, eom, cp, bp, ep - bp);
-		if ((n < 0) || !(*name_ok)(bp)) {
-			had_error++;
-			continue;
-		}
-		cp += n;			/* name */
-		BOUNDS_CHECK(cp, 3 * INT16SZ + INT32SZ);
-		type = _getshort(cp);
- 		cp += INT16SZ;			/* type */
-		class = _getshort(cp);
- 		cp += INT16SZ + INT32SZ;	/* class, TTL */
-		n = _getshort(cp);
-		cp += INT16SZ;			/* len */
-		BOUNDS_CHECK(cp, n);
-		erdata = cp + n;
-		if (class != C_IN) {
-			/* XXX - debug? syslog? */
-			cp += n;
-			continue;		/* XXX - had_error++ ? */
-		}
-		if ((qtype == T_A || qtype == T_AAAA) && type == T_CNAME) {
-			if (ap >= &rs->host_aliases[MAXALIASES-1])
-				continue;
-			n = dn_expand(answer->buf, eom, cp, tbuf, sizeof tbuf);
-			if ((n < 0) || !(*name_ok)(tbuf)) {
-				had_error++;
-				continue;
-			}
-			cp += n;
-			if (cp != erdata) {
-				h_errno = NO_RECOVERY;
-				return NULL;
-			}
-			/* Store alias. */
-			*ap++ = bp;
-			n = strlen(bp) + 1;	/* for the \0 */
-			if (n >= MAXHOSTNAMELEN) {
-				had_error++;
-				continue;
-			}
-			bp += n;
-			/* Get canonical name. */
-			n = strlen(tbuf) + 1;	/* for the \0 */
-			if (n > ep - bp || n >= MAXHOSTNAMELEN) {
-				had_error++;
-				continue;
-			}
-			strlcpy(bp, tbuf, (size_t)(ep - bp));
-			rs->host.h_name = bp;
-			bp += n;
-			continue;
-		}
-		if (qtype == T_PTR && type == T_CNAME) {
-			n = dn_expand(answer->buf, eom, cp, tbuf, sizeof tbuf);
-			if (n < 0 || !res_dnok(tbuf)) {
-				had_error++;
-				continue;
-			}
-			cp += n;
-			if (cp != erdata) {
-				h_errno = NO_RECOVERY;
-				return NULL;
-			}
-			/* Get canonical name. */
-			n = strlen(tbuf) + 1;	/* for the \0 */
-			if (n > ep - bp || n >= MAXHOSTNAMELEN) {
-				had_error++;
-				continue;
-			}
-			strlcpy(bp, tbuf, (size_t)(ep - bp));
-			tname = bp;
-			bp += n;
-			continue;
-		}
-		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_PTR:
-			if (strcasecmp(tname, bp) != 0) {
-				syslog(LOG_NOTICE|LOG_AUTH,
-				       AskedForGot, qname, bp);
-				cp += n;
-				continue;	/* XXX - had_error++ ? */
-			}
-			n = dn_expand(answer->buf, eom, cp, bp, ep - bp);
-			if ((n < 0) || !res_hnok(bp)) {
-				had_error++;
-				break;
-			}
-#if MULTI_PTRS_ARE_ALIASES
-			cp += n;
-			if (cp != erdata) {
-				h_errno = NO_RECOVERY;
-				return NULL;
-			}
-			if (!haveanswer)
-				rs->host.h_name = bp;
-			else if (ap < &rs->host_aliases[MAXALIASES-1])
-				*ap++ = bp;
-			else
-				n = -1;
-			if (n != -1) {
-				n = strlen(bp) + 1;	/* for the \0 */
-				if (n >= MAXHOSTNAMELEN) {
-					had_error++;
-					break;
-				}
-				bp += n;
-			}
-			break;
-#else
-			rs->host.h_name = bp;
-			if (res->options & RES_USE_INET6) {
-				n = strlen(bp) + 1;	/* for the \0 */
-				if (n >= MAXHOSTNAMELEN) {
-					had_error++;
-					break;
-				}
-				bp += n;
-				map_v4v6_hostent(&rs->host, &bp, ep);
-			}
-			h_errno = NETDB_SUCCESS;
-			return &rs->host;
-#endif
-		case T_A:
-		case T_AAAA:
-			if (strcasecmp(rs->host.h_name, bp) != 0) {
-				syslog(LOG_NOTICE|LOG_AUTH,
-				       AskedForGot, rs->host.h_name, bp);
-				cp += n;
-				continue;	/* XXX - had_error++ ? */
-			}
-			if (n != rs->host.h_length) {
-				cp += n;
-				continue;
-			}
-			if (type == T_AAAA) {
-				struct in6_addr in6;
-				memcpy(&in6, cp, IN6ADDRSZ);
-				if (IN6_IS_ADDR_V4MAPPED(&in6)) {
-					cp += n;
-					continue;
-				}
-			}
-			if (!haveanswer) {
-				int nn;
-
-				rs->host.h_name = bp;
-				nn = strlen(bp) + 1;	/* for the \0 */
-				bp += nn;
-			}
-
-			bp += sizeof(align) -
-			    (size_t)((u_long)bp % sizeof(align));
-
-			if (bp + n >= &rs->hostbuf[sizeof rs->hostbuf]) {
-				dprintf("size (%d) too big\n", res, n);
-				had_error++;
-				continue;
-			}
-			if (hap >= &rs->h_addr_ptrs[MAXADDRS-1]) {
-				if (!toobig++)
-					dprintf("Too many addresses (%d)\n",
-						res, MAXADDRS);
-				cp += n;
-				continue;
-			}
-			(void)memcpy(*hap++ = bp, cp, (size_t)n);
-			bp += n;
-			cp += n;
-			if (cp != erdata) {
-				h_errno = NO_RECOVERY;
-				return NULL;
-			}
-			break;
-		default:
-			abort();
-		}
-		if (!had_error)
-			haveanswer++;
-	}
-	if (haveanswer) {
-		*ap = NULL;
-		*hap = NULL;
-		/*
-		 * Note: we sort even if host can take only one address
-		 * in its return structures - should give it the "best"
-		 * address in that case, not some random one
-		 */
-		if (res->nsort && haveanswer > 1 && qtype == T_A)
-			addrsort(rs->h_addr_ptrs, haveanswer, res);
-		if (!rs->host.h_name) {
-			n = strlen(qname) + 1;	/* for the \0 */
-			if (n > ep - bp || n >= MAXHOSTNAMELEN)
-				goto no_recovery;
-			strlcpy(bp, qname, (size_t)(ep - bp));
-			rs->host.h_name = bp;
-			bp += n;
-		}
-		if (res->options & RES_USE_INET6)
-			map_v4v6_hostent(&rs->host, &bp, ep);
-		h_errno = NETDB_SUCCESS;
-		return &rs->host;
-	}
- no_recovery:
-	h_errno = NO_RECOVERY;
-	return NULL;
-}
-
-int
-gethostbyname_r(const char *name, struct hostent *hp, char *buf, size_t buflen,
-    struct hostent**result, int *errorp)
-{
-        struct hostent *res;
-
-        res = gethostbyname(name);
-        *errorp = h_errno;
-        if (res == NULL) {
-                *result = NULL;
-                return -1;
-        }
-        memcpy(hp, res, sizeof *hp);
-        *result = hp;
-        return 0;
-}
-
-struct hostent *
-gethostbyname(const char *name)
-{
-	struct hostent *hp;
-	res_state res = __res_get_state();
-
-	if (res == NULL)
-		return NULL;
-
-	assert(name != NULL);
-
-	if (res->options & RES_USE_INET6) {
-		hp = gethostbyname_internal(name, AF_INET6, res);
-		if (hp) {
-			__res_put_state(res);
-			return hp;
-		}
-	}
-	hp = gethostbyname_internal(name, AF_INET, res);
-	__res_put_state(res);
-	return hp;
-}
-
-struct hostent *
-gethostbyname2(const char *name, int af)
-{
-	struct hostent *hp;
-	res_state res = __res_get_state();
-
-	if (res == NULL)
-		return NULL;
-	hp = gethostbyname_internal(name, af, res);
-	__res_put_state(res);
-	return hp;
-}
-
-static struct hostent *
-gethostbyname_internal(const char *name, int af, res_state res)
-{
-	const char *cp;
-	char *bp, *ep;
-	int size;
-	struct hostent *hp;
-        struct resolv_cache*  cache;
-        res_static  rs = __res_get_static();
-
-	static const ns_dtab dtab[] = {
-		NS_FILES_CB(_gethtbyname, NULL)
-		{ NSSRC_DNS, _dns_gethtbyname, NULL },	/* force -DHESIOD */
-		{ 0, 0, 0 }
-	};
-
-	assert(name != NULL);
-
-	switch (af) {
-	case AF_INET:
-		size = INADDRSZ;
-		break;
-	case AF_INET6:
-		size = IN6ADDRSZ;
-		break;
-	default:
-		h_errno = NETDB_INTERNAL;
-		errno = EAFNOSUPPORT;
-		return NULL;
-	}
-
-	rs->host.h_addrtype = af;
-	rs->host.h_length = size;
-
-	/*
-	 * if there aren't any dots, it could be a user-level alias.
-	 * this is also done in res_nquery() since we are not the only
-	 * function that looks up host names.
-	 */
-	if (!strchr(name, '.') && (cp = __hostalias(name)))
-		name = cp;
-
-	/*
-	 * disallow names consisting only of digits/dots, unless
-	 * they end in a dot.
-	 */
-	if (isdigit((u_char) name[0]))
-		for (cp = name;; ++cp) {
-			if (!*cp) {
-				if (*--cp == '.')
-					break;
-				/*
-				 * All-numeric, no dot at the end.
-				 * Fake up a hostent as if we'd actually
-				 * done a lookup.
-				 */
-				if (inet_pton(af, name,
-				    (char *)(void *)rs->host_addr) <= 0) {
-					h_errno = HOST_NOT_FOUND;
-					return NULL;
-				}
-				strncpy(rs->hostbuf, name, MAXDNAME);
-				rs->hostbuf[MAXDNAME] = '\0';
-				bp = rs->hostbuf + MAXDNAME;
-				ep = rs->hostbuf + sizeof rs->hostbuf;
-				rs->host.h_name = rs->hostbuf;
-				rs->host.h_aliases = rs->host_aliases;
-				rs->host_aliases[0] = NULL;
-				rs->h_addr_ptrs[0] = (char *)(void *)rs->host_addr;
-				rs->h_addr_ptrs[1] = NULL;
-				rs->host.h_addr_list = rs->h_addr_ptrs;
-				if (res->options & RES_USE_INET6)
-					map_v4v6_hostent(&rs->host, &bp, ep);
-				h_errno = NETDB_SUCCESS;
-				return &rs->host;
-			}
-			if (!isdigit((u_char) *cp) && *cp != '.')
-				break;
-		}
-	if ((isxdigit((u_char) name[0]) && strchr(name, ':') != NULL) ||
-	    name[0] == ':')
-		for (cp = name;; ++cp) {
-			if (!*cp) {
-				if (*--cp == '.')
-					break;
-				/*
-				 * All-IPv6-legal, no dot at the end.
-				 * Fake up a hostent as if we'd actually
-				 * done a lookup.
-				 */
-				if (inet_pton(af, name,
-				    (char *)(void *)rs->host_addr) <= 0) {
-					h_errno = HOST_NOT_FOUND;
-					return NULL;
-				}
-				strncpy(rs->hostbuf, name, MAXDNAME);
-				rs->hostbuf[MAXDNAME] = '\0';
-				bp = rs->hostbuf + MAXDNAME;
-				ep = rs->hostbuf + sizeof rs->hostbuf;
-				rs->host.h_name = rs->hostbuf;
-				rs->host.h_aliases = rs->host_aliases;
-				rs->host_aliases[0] = NULL;
-				rs->h_addr_ptrs[0] = (char *)(void *)rs->host_addr;
-				rs->h_addr_ptrs[1] = NULL;
-				rs->host.h_addr_list = rs->h_addr_ptrs;
-				h_errno = NETDB_SUCCESS;
-				return &rs->host;
-			}
-			if (!isxdigit((u_char) *cp) && *cp != ':' && *cp != '.')
-				break;
-		}
-
-	hp = NULL;
-	h_errno = NETDB_INTERNAL;
-	if (nsdispatch(&hp, dtab, NSDB_HOSTS, "gethostbyname",
-	    default_dns_files, name, strlen(name), af) != NS_SUCCESS) {
-		return NULL;
-        }
-	h_errno = NETDB_SUCCESS;
-	return hp;
-}
-
-struct hostent *
-gethostbyaddr(const char *addr,	/* XXX should have been def'd as u_char! */
-    socklen_t len, int af)
-{
-	const u_char *uaddr = (const u_char *)addr;
-	socklen_t size;
-	struct hostent *hp;
-	static const ns_dtab dtab[] = {
-		NS_FILES_CB(_gethtbyaddr, NULL)
-		{ NSSRC_DNS, _dns_gethtbyaddr, NULL },	/* force -DHESIOD */
-		{ 0, 0, 0 }
-	};
-
-	assert(addr != NULL);
-
-	if (af == AF_INET6 && len == IN6ADDRSZ &&
-	    (IN6_IS_ADDR_LINKLOCAL((const struct in6_addr *)(const void *)uaddr) ||
-	     IN6_IS_ADDR_SITELOCAL((const struct in6_addr *)(const void *)uaddr))) {
-		h_errno = HOST_NOT_FOUND;
-		return NULL;
-	}
-	if (af == AF_INET6 && len == IN6ADDRSZ &&
-	    (IN6_IS_ADDR_V4MAPPED((const struct in6_addr *)(const void *)uaddr) ||
-	     IN6_IS_ADDR_V4COMPAT((const struct in6_addr *)(const void *)uaddr))) {
-		/* Unmap. */
-		addr += IN6ADDRSZ - INADDRSZ;
-		uaddr += IN6ADDRSZ - INADDRSZ;
-		af = AF_INET;
-		len = INADDRSZ;
-	}
-	switch (af) {
-	case AF_INET:
-		size = INADDRSZ;
-		break;
-	case AF_INET6:
-		size = IN6ADDRSZ;
-		break;
-	default:
-		errno = EAFNOSUPPORT;
-		h_errno = NETDB_INTERNAL;
-		return NULL;
-	}
-	if (size != len) {
-		errno = EINVAL;
-		h_errno = NETDB_INTERNAL;
-		return NULL;
-	}
-	hp = NULL;
-	h_errno = NETDB_INTERNAL;
-	if (nsdispatch(&hp, dtab, NSDB_HOSTS, "gethostbyaddr",
-	    default_dns_files, uaddr, len, af) != NS_SUCCESS)
-		return NULL;
-	h_errno = NETDB_SUCCESS;
-	return hp;
-}
-
-void
-_sethtent(int f)
-{
-    res_static  rs = __res_get_static();
-    if (rs == NULL) return;
-	if (!rs->hostf)
-		rs->hostf = fopen(_PATH_HOSTS, "r" );
-	else
-		rewind(rs->hostf);
-	rs->stayopen = f;
-}
-
-void
-_endhtent(void)
-{
-    res_static  rs = __res_get_static();
-    if (rs == NULL) return;
-
-	if (rs->hostf && !rs->stayopen) {
-		(void) fclose(rs->hostf);
-		rs->hostf = NULL;
-	}
-}
-
-struct hostent *
-_gethtent(void)
-{
-	char *p;
-	char *cp, **q;
-	int af, len;
-	res_static  rs = __res_get_static();
-
-	if (!rs->hostf && !(rs->hostf = fopen(_PATH_HOSTS, "r" ))) {
-		h_errno = NETDB_INTERNAL;
-		return NULL;
-	}
- again:
-	if (!(p = fgets(rs->hostbuf, sizeof rs->hostbuf, rs->hostf))) {
-		h_errno = HOST_NOT_FOUND;
-		return NULL;
-	}
-	if (*p == '#')
-		goto again;
-	if (!(cp = strpbrk(p, "#\n")))
-		goto again;
-	*cp = '\0';
-	if (!(cp = strpbrk(p, " \t")))
-		goto again;
-	*cp++ = '\0';
-	if (inet_pton(AF_INET6, p, (char *)(void *)rs->host_addr) > 0) {
-		af = AF_INET6;
-		len = IN6ADDRSZ;
-	} else if (inet_pton(AF_INET, p, (char *)(void *)rs->host_addr) > 0) {
-		res_state res = __res_get_state();
-		if (res == NULL)
-			return NULL;
-		if (res->options & RES_USE_INET6) {
-			map_v4v6_address((char *)(void *)rs->host_addr,
-			    (char *)(void *)rs->host_addr);
-			af = AF_INET6;
-			len = IN6ADDRSZ;
-		} else {
-			af = AF_INET;
-			len = INADDRSZ;
-		}
-		__res_put_state(res);
-	} else {
-		goto again;
-	}
-	/* if this is not something we're looking for, skip it. */
-	if (rs->host.h_addrtype != 0 && rs->host.h_addrtype != af)
-		goto again;
-	if (rs->host.h_length != 0 && rs->host.h_length != len)
-		goto again;
-	rs->h_addr_ptrs[0] = (char *)(void *)rs->host_addr;
-	rs->h_addr_ptrs[1] = NULL;
-	rs->host.h_addr_list = rs->h_addr_ptrs;
-	rs->host.h_length = len;
-	rs->host.h_addrtype = af;
-	while (*cp == ' ' || *cp == '\t')
-		cp++;
-	rs->host.h_name = cp;
-	q = rs->host.h_aliases = rs->host_aliases;
-	if ((cp = strpbrk(cp, " \t")) != NULL)
-		*cp++ = '\0';
-	while (cp && *cp) {
-		if (*cp == ' ' || *cp == '\t') {
-			cp++;
-			continue;
-		}
-		if (q < &rs->host_aliases[MAXALIASES - 1])
-			*q++ = cp;
-		if ((cp = strpbrk(cp, " \t")) != NULL)
-			*cp++ = '\0';
-	}
-	*q = NULL;
-	h_errno = NETDB_SUCCESS;
-	return &rs->host;
-}
-
-/*ARGSUSED*/
-int
-_gethtbyname(void *rv, void *cb_data, va_list ap)
-{
-	struct hostent *hp;
-	const char *name;
-	int af;
-
-	assert(rv != NULL);
-
-	name = va_arg(ap, char *);
-	/* NOSTRICT skip len */(void)va_arg(ap, int);
-	af = va_arg(ap, int);
-
-	hp = NULL;
-#if 0
-	{
-		res_state res = __res_get_state();
-		if (res == NULL)
-			return NS_NOTFOUND;
-		if (res->options & RES_USE_INET6)
-			hp = _gethtbyname2(name, AF_INET6);
-		if (hp==NULL)
-			hp = _gethtbyname2(name, AF_INET);
-		__res_put_state(res);
-	}
-#else
-	hp = _gethtbyname2(name, af);
-#endif
-	*((struct hostent **)rv) = hp;
-	if (hp == NULL) {
-		h_errno = HOST_NOT_FOUND;
-		return NS_NOTFOUND;
-	}
-	return NS_SUCCESS;
-}
-
-struct hostent *
-_gethtbyname2(const char *name, int af)
-{
-	struct hostent *p;
-	char *tmpbuf, *ptr, **cp;
-	int num;
-	size_t len;
-	res_static rs = __res_get_static();
-
-	assert(name != NULL);
-
-	_sethtent(rs->stayopen);
-	ptr = tmpbuf = NULL;
-	num = 0;
-	while ((p = _gethtent()) != NULL && num < MAXADDRS) {
-		if (p->h_addrtype != af)
-			continue;
-		if (strcasecmp(p->h_name, name) != 0) {
-			for (cp = p->h_aliases; *cp != NULL; cp++)
-				if (strcasecmp(*cp, name) == 0)
-					break;
-			if (*cp == NULL) continue;
-		}
-
-		if (num == 0) {
-			size_t bufsize;
-			char *src;
-
-			bufsize = strlen(p->h_name) + 2 +
-				  MAXADDRS * p->h_length +
-				  ALIGNBYTES;
-			for (cp = p->h_aliases; *cp != NULL; cp++)
-				bufsize += strlen(*cp) + 1;
-
-			if ((tmpbuf = malloc(bufsize)) == NULL) {
-				h_errno = NETDB_INTERNAL;
-				return NULL;
-			}
-
-			ptr = tmpbuf;
-			src = p->h_name;
-			while ((*ptr++ = *src++) != '\0');
-			for (cp = p->h_aliases; *cp != NULL; cp++) {
-				src = *cp;
-				while ((*ptr++ = *src++) != '\0');
-			}
-			*ptr++ = '\0';
-
-			ptr = (char *)(void *)ALIGN(ptr);
-		}
-
-		(void)memcpy(ptr, p->h_addr_list[0], (size_t)p->h_length);
-		ptr += p->h_length;
-		num++;
-	}
-	_endhtent();
-	if (num == 0) return NULL;
-
-	len = ptr - tmpbuf;
-	if (len > (sizeof(rs->hostbuf) - ALIGNBYTES)) {
-		free(tmpbuf);
-		errno = ENOSPC;
-		h_errno = NETDB_INTERNAL;
-		return NULL;
-	}
-	ptr = memcpy((void *)ALIGN(rs->hostbuf), tmpbuf, len);
-	free(tmpbuf);
-
-	rs->host.h_name = ptr;
-	while (*ptr++);
-
-	cp = rs->host_aliases;
-	while (*ptr) {
-		*cp++ = ptr;
-		while (*ptr++);
-	}
-	ptr++;
-	*cp = NULL;
-
-	ptr = (char *)(void *)ALIGN(ptr);
-	cp = rs->h_addr_ptrs;
-	while (num--) {
-		*cp++ = ptr;
-		ptr += rs->host.h_length;
-	}
-	*cp = NULL;
-
-	return &rs->host;
-}
-
-/*ARGSUSED*/
-int
-_gethtbyaddr(void *rv, void *cb_data, va_list ap)
-{
-	struct hostent *p;
-	const unsigned char *addr;
-	int len, af;
-	res_static  rs = __res_get_static();
-
-	assert(rv != NULL);
-
-	addr = va_arg(ap, unsigned char *);
-	len = va_arg(ap, int);
-	af = va_arg(ap, int);
-
-	rs->host.h_length = len;
-	rs->host.h_addrtype = af;
-
-	_sethtent(rs->stayopen);
-	while ((p = _gethtent()) != NULL)
-		if (p->h_addrtype == af && !memcmp(p->h_addr, addr,
-		    (size_t)len))
-			break;
-	_endhtent();
-	*((struct hostent **)rv) = p;
-	if (p==NULL) {
-		h_errno = HOST_NOT_FOUND;
-		return NS_NOTFOUND;
-	}
-	return NS_SUCCESS;
-}
-
-static void
-map_v4v6_address(const char *src, char *dst)
-{
-	u_char *p = (u_char *)dst;
-	char tmp[INADDRSZ];
-	int i;
-
-	assert(src != NULL);
-	assert(dst != NULL);
-
-	/* Stash a temporary copy so our caller can update in place. */
-	(void)memcpy(tmp, src, INADDRSZ);
-	/* Mark this ipv6 addr as a mapped ipv4. */
-	for (i = 0; i < 10; i++)
-		*p++ = 0x00;
-	*p++ = 0xff;
-	*p++ = 0xff;
-	/* Retrieve the saved copy and we're done. */
-	(void)memcpy((void *)p, tmp, INADDRSZ);
-}
-
-static void
-map_v4v6_hostent(struct hostent *hp, char **bpp, char *ep)
-{
-	char **ap;
-
-	assert(hp != NULL);
-	assert(bpp != NULL);
-	assert(ep != NULL);
-
-	if (hp->h_addrtype != AF_INET || hp->h_length != INADDRSZ)
-		return;
-	hp->h_addrtype = AF_INET6;
-	hp->h_length = IN6ADDRSZ;
-	for (ap = hp->h_addr_list; *ap; ap++) {
-		int i = sizeof(align) - (size_t)((u_long)*bpp % sizeof(align));
-
-		if (ep - *bpp < (i + IN6ADDRSZ)) {
-			/* Out of memory.  Truncate address list here.  XXX */
-			*ap = NULL;
-			return;
-		}
-		*bpp += i;
-		map_v4v6_address(*ap, *bpp);
-		*ap = *bpp;
-		*bpp += IN6ADDRSZ;
-	}
-}
-
-static void
-addrsort(char **ap, int num, res_state res)
-{
-	int i, j;
-	char **p;
-	short aval[MAXADDRS];
-	int needsort = 0;
-
-	assert(ap != NULL);
-
-	p = ap;
-	for (i = 0; i < num; i++, p++) {
-	    for (j = 0 ; (unsigned)j < res->nsort; j++)
-		if (res->sort_list[j].addr.s_addr ==
-		    (((struct in_addr *)(void *)(*p))->s_addr &
-		    res->sort_list[j].mask))
-			break;
-	    aval[i] = j;
-	    if (needsort == 0 && i > 0 && j < aval[i-1])
-		needsort = i;
-	}
-	if (!needsort)
-	    return;
-
-	while (needsort < num) {
-	    for (j = needsort - 1; j >= 0; j--) {
-		if (aval[j] > aval[j+1]) {
-		    char *hp;
-
-		    i = aval[j];
-		    aval[j] = aval[j+1];
-		    aval[j+1] = i;
-
-		    hp = ap[j];
-		    ap[j] = ap[j+1];
-		    ap[j+1] = hp;
-		} else
-		    break;
-	    }
-	    needsort++;
-	}
-}
-
-struct hostent *
-gethostent(void)
-{
-    res_static  rs = __res_get_static();
-	rs->host.h_addrtype = 0;
-	rs->host.h_length = 0;
-	return _gethtent();
-}
-
-/*ARGSUSED*/
-int
-_dns_gethtbyname(void *rv, void *cb_data, va_list ap)
-{
-	querybuf *buf;
-	int n, type;
-	struct hostent *hp;
-	const char *name;
-	int af;
-	res_state res;
-
-	assert(rv != NULL);
-
-	name = va_arg(ap, char *);
-	/* NOSTRICT skip len */(void)va_arg(ap, int);
-	af = va_arg(ap, int);
-
-	switch (af) {
-	case AF_INET:
-		type = T_A;
-		break;
-	case AF_INET6:
-		type = T_AAAA;
-		break;
-	default:
-		return NS_UNAVAIL;
-	}
-	buf = malloc(sizeof(*buf));
-	if (buf == NULL) {
-		h_errno = NETDB_INTERNAL;
-		return NS_NOTFOUND;
-	}
-	res = __res_get_state();
-	if (res == NULL) {
-		free(buf);
-		return NS_NOTFOUND;
-	}
-	n = res_nsearch(res, name, C_IN, type, buf->buf, sizeof(buf->buf));
-	if (n < 0) {
-		free(buf);
-		dprintf("res_nsearch failed (%d)\n", res, n);
-		__res_put_state(res);
-		return NS_NOTFOUND;
-	}
-	hp = getanswer(buf, n, name, type, res);
-	free(buf);
-	__res_put_state(res);
-	if (hp == NULL)
-		switch (h_errno) {
-		case HOST_NOT_FOUND:
-			return NS_NOTFOUND;
-		case TRY_AGAIN:
-			return NS_TRYAGAIN;
-		default:
-			return NS_UNAVAIL;
-		}
-	*((struct hostent **)rv) = hp;
-	return NS_SUCCESS;
-}
-
-/*ARGSUSED*/
-int
-_dns_gethtbyaddr(void *rv, void	*cb_data, va_list ap)
-{
-	char qbuf[MAXDNAME + 1], *qp, *ep;
-	int n;
-	querybuf *buf;
-	struct hostent *hp;
-	const unsigned char *uaddr;
-	int len, af, advance;
-	res_state res;
-	res_static rs = __res_get_static();
-
-	assert(rv != NULL);
-
-	uaddr = va_arg(ap, unsigned char *);
-	len = va_arg(ap, int);
-	af = va_arg(ap, int);
-
-	switch (af) {
-	case AF_INET:
-		(void)snprintf(qbuf, sizeof(qbuf), "%u.%u.%u.%u.in-addr.arpa",
-		    (uaddr[3] & 0xff), (uaddr[2] & 0xff),
-		    (uaddr[1] & 0xff), (uaddr[0] & 0xff));
-		break;
-
-	case AF_INET6:
-		qp = qbuf;
-		ep = qbuf + sizeof(qbuf) - 1;
-		for (n = IN6ADDRSZ - 1; n >= 0; n--) {
-			advance = snprintf(qp, (size_t)(ep - qp), "%x.%x.",
-			    uaddr[n] & 0xf,
-			    ((unsigned int)uaddr[n] >> 4) & 0xf);
-			if (advance > 0 && qp + advance < ep)
-				qp += advance;
-			else {
-				h_errno = NETDB_INTERNAL;
-				return NS_NOTFOUND;
-			}
-		}
-		if (strlcat(qbuf, "ip6.arpa", sizeof(qbuf)) >= sizeof(qbuf)) {
-			h_errno = NETDB_INTERNAL;
-			return NS_NOTFOUND;
-		}
-		break;
-	default:
-		abort();
-	}
-
-	buf = malloc(sizeof(*buf));
-	if (buf == NULL) {
-		h_errno = NETDB_INTERNAL;
-		return NS_NOTFOUND;
-	}
-	res = __res_get_state();
-	if (res == NULL) {
-		free(buf);
-		return NS_NOTFOUND;
-	}
-	n = res_nquery(res, qbuf, C_IN, T_PTR, buf->buf, sizeof(buf->buf));
-	if (n < 0) {
-		free(buf);
-		dprintf("res_nquery failed (%d)\n", res, n);
-		__res_put_state(res);
-		return NS_NOTFOUND;
-	}
-	hp = getanswer(buf, n, qbuf, T_PTR, res);
-	free(buf);
-	if (hp == NULL) {
-		__res_put_state(res);
-		switch (h_errno) {
-		case HOST_NOT_FOUND:
-			return NS_NOTFOUND;
-		case TRY_AGAIN:
-			return NS_TRYAGAIN;
-		default:
-			return NS_UNAVAIL;
-		}
-	}
-	hp->h_addrtype = af;
-	hp->h_length = len;
-	(void)memcpy(rs->host_addr, uaddr, (size_t)len);
-	rs->h_addr_ptrs[0] = (char *)(void *)rs->host_addr;
-	rs->h_addr_ptrs[1] = NULL;
-	if (af == AF_INET && (res->options & RES_USE_INET6)) {
-		map_v4v6_address((char *)(void *)rs->host_addr,
-		    (char *)(void *)rs->host_addr);
-		hp->h_addrtype = AF_INET6;
-		hp->h_length = IN6ADDRSZ;
-	}
-
-	__res_put_state(res);
-	*((struct hostent **)rv) = hp;
-	h_errno = NETDB_SUCCESS;
-	return NS_SUCCESS;
-}
diff --git a/libc/netbsd/inet/nsap_addr.c b/libc/netbsd/inet/nsap_addr.c
deleted file mode 100644
index e18bd33..0000000
--- a/libc/netbsd/inet/nsap_addr.c
+++ /dev/null
@@ -1,121 +0,0 @@
-/*	$NetBSD: nsap_addr.c,v 1.2 2004/05/20 23:12:33 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-#if 0
-static const char rcsid[] = "Id: nsap_addr.c,v 1.2.206.1 2004/03/09 08:33:33 marka Exp";
-#else
-__RCSID("$NetBSD: nsap_addr.c,v 1.2 2004/05/20 23:12:33 christos Exp $");
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include "arpa_nameser.h"
-
-#include <assert.h>
-#include <ctype.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-
-static char
-xtob(int c) {
-	return (c - (((c >= '0') && (c <= '9')) ? '0' : '7'));
-}
-
-u_int
-inet_nsap_addr(const char *ascii, u_char *binary, int maxlen) {
-	u_char c, nib;
-	u_int len = 0;
-
-	assert(ascii != NULL);
-	assert(binary != NULL);
-
-	if (ascii[0] != '0' || (ascii[1] != 'x' && ascii[1] != 'X'))
-		return (0);
-	ascii += 2;
-
-	while ((c = *ascii++) != '\0' && len < (u_int)maxlen) {
-		if (c == '.' || c == '+' || c == '/')
-			continue;
-		if (!isascii(c))
-			return (0);
-		if (islower(c))
-			c = toupper(c);
-		if (isxdigit(c)) {
-			nib = xtob(c);
-			c = *ascii++;
-			if (c != '\0') {
-				c = toupper(c);
-				if (isxdigit(c)) {
-					*binary++ = (nib << 4) | xtob(c);
-					len++;
-				} else
-					return (0);
-			}
-			else
-				return (0);
-		}
-		else
-			return (0);
-	}
-	return (len);
-}
-
-char *
-inet_nsap_ntoa(int binlen, const u_char *binary, char *ascii) {
-	int nib;
-	int i;
-	static char tmpbuf[2+255*3];
-	char *start;
-
-	assert(binary != NULL);
-
-	if (ascii)
-		start = ascii;
-	else {
-		ascii = tmpbuf;
-		start = tmpbuf;
-	}
-
-	*ascii++ = '0';
-	*ascii++ = 'x';
-
-	if (binlen > 255)
-		binlen = 255;
-
-	for (i = 0; i < binlen; i++) {
-		nib = (u_int32_t)*binary >> 4;
-		*ascii++ = nib + (nib < 10 ? '0' : '7');
-		nib = *binary++ & 0x0f;
-		*ascii++ = nib + (nib < 10 ? '0' : '7');
-		if (((i % 2) == 0 && (i + 1) < binlen))
-			*ascii++ = '.';
-	}
-	*ascii = '\0';
-	return (start);
-}
diff --git a/libc/netbsd/isc/ev_streams.c b/libc/netbsd/isc/ev_streams.c
deleted file mode 100644
index aeecc3e..0000000
--- a/libc/netbsd/isc/ev_streams.c
+++ /dev/null
@@ -1,311 +0,0 @@
-/*	$NetBSD: ev_streams.c,v 1.2 2004/05/20 19:52:31 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-/* ev_streams.c - implement asynch stream file IO for the eventlib
- * vix 04mar96 [initial]
- */
-
-#include <sys/cdefs.h>
-#if !defined(LINT) && !defined(CODECENTER) && !defined(lint)
-#ifdef notdef
-static const char rcsid[] = "Id: ev_streams.c,v 1.2.206.2 2004/03/17 00:29:51 marka Exp";
-#else
-__RCSID("$NetBSD: ev_streams.c,v 1.2 2004/05/20 19:52:31 christos Exp $");
-#endif
-#endif
-
-#include <sys/types.h>
-#include <sys/uio.h>
-
-#include <errno.h>
-
-#include <isc/eventlib.h>
-#include "eventlib_p.h"
-
-#ifndef _LIBC
-static int	copyvec(evStream *str, const struct iovec *iov, int iocnt);
-static void	consume(evStream *str, size_t bytes);
-static void	done(evContext opaqueCtx, evStream *str);
-static void	writable(evContext opaqueCtx, void *uap, int fd, int evmask);
-static void	readable(evContext opaqueCtx, void *uap, int fd, int evmask);
-#endif
-
-struct iovec
-evConsIovec(void *buf, size_t cnt) {
-	struct iovec ret;
-
-	memset(&ret, 0xf5, sizeof ret);
-	ret.iov_base = buf;
-	ret.iov_len = cnt;
-	return (ret);
-}
-
-#ifndef _LIBC
-int
-evWrite(evContext opaqueCtx, int fd, const struct iovec *iov, int iocnt,
-	evStreamFunc func, void *uap, evStreamID *id)
-{
-	evContext_p *ctx = opaqueCtx.opaque;
-	evStream *new;
-	int save;
-
-	OKNEW(new);
-	new->func = func;
-	new->uap = uap;
-	new->fd = fd;
-	new->flags = 0;
-	if (evSelectFD(opaqueCtx, fd, EV_WRITE, writable, new, &new->file) < 0)
-		goto free;
-	if (copyvec(new, iov, iocnt) < 0)
-		goto free;
-	new->prevDone = NULL;
-	new->nextDone = NULL;
-	if (ctx->streams != NULL)
-		ctx->streams->prev = new;
-	new->prev = NULL;
-	new->next = ctx->streams;
-	ctx->streams = new;
-	if (id != NULL)
-		id->opaque = new;
-	return (0);
- free:
-	save = errno;
-	FREE(new);
-	errno = save;
-	return (-1);
-}
-
-int
-evRead(evContext opaqueCtx, int fd, const struct iovec *iov, int iocnt,
-       evStreamFunc func, void *uap, evStreamID *id)
-{
-	evContext_p *ctx = opaqueCtx.opaque;
-	evStream *new;
-	int save;
-
-	OKNEW(new);
-	new->func = func;
-	new->uap = uap;
-	new->fd = fd;
-	new->flags = 0;
-	if (evSelectFD(opaqueCtx, fd, EV_READ, readable, new, &new->file) < 0)
-		goto free;
-	if (copyvec(new, iov, iocnt) < 0)
-		goto free;
-	new->prevDone = NULL;
-	new->nextDone = NULL;
-	if (ctx->streams != NULL)
-		ctx->streams->prev = new;
-	new->prev = NULL;
-	new->next = ctx->streams;
-	ctx->streams = new;
-	if (id)
-		id->opaque = new;
-	return (0);
- free:
-	save = errno;
-	FREE(new);
-	errno = save;
-	return (-1);
-}
-
-int
-evTimeRW(evContext opaqueCtx, evStreamID id, evTimerID timer) /*ARGSUSED*/ {
-	evStream *str = id.opaque;
-
-	UNUSED(opaqueCtx);
-
-	str->timer = timer;
-	str->flags |= EV_STR_TIMEROK;
-	return (0);
-}
-
-int
-evUntimeRW(evContext opaqueCtx, evStreamID id) /*ARGSUSED*/ {
-	evStream *str = id.opaque;
-
-	UNUSED(opaqueCtx);
-
-	str->flags &= ~EV_STR_TIMEROK;
-	return (0);
-}
-
-int
-evCancelRW(evContext opaqueCtx, evStreamID id) {
-	evContext_p *ctx = opaqueCtx.opaque;
-	evStream *old = id.opaque;
-
-	/*
-	 * The streams list is doubly threaded.  First, there's ctx->streams
-	 * that's used by evDestroy() to find and cancel all streams.  Second,
-	 * there's ctx->strDone (head) and ctx->strLast (tail) which thread
-	 * through the potentially smaller number of "IO completed" streams,
-	 * used in evGetNext() to avoid scanning the entire list.
-	 */
-
-	/* Unlink from ctx->streams. */
-	if (old->prev != NULL)
-		old->prev->next = old->next;
-	else
-		ctx->streams = old->next;
-	if (old->next != NULL)
-		old->next->prev = old->prev;
-
-	/*
-	 * If 'old' is on the ctx->strDone list, remove it.  Update
-	 * ctx->strLast if necessary.
-	 */
-	if (old->prevDone == NULL && old->nextDone == NULL) {
-		/*
-		 * Either 'old' is the only item on the done list, or it's
-		 * not on the done list.  If the former, then we unlink it
-		 * from the list.  If the latter, we leave the list alone.
-		 */
-		if (ctx->strDone == old) {
-			ctx->strDone = NULL;
-			ctx->strLast = NULL;
-		}
-	} else {
-		if (old->prevDone != NULL)
-			old->prevDone->nextDone = old->nextDone;
-		else
-			ctx->strDone = old->nextDone;
-		if (old->nextDone != NULL)
-			old->nextDone->prevDone = old->prevDone;
-		else
-			ctx->strLast = old->prevDone;
-	}
-
-	/* Deallocate the stream. */
-	if (old->file.opaque)
-		evDeselectFD(opaqueCtx, old->file);
-	memput(old->iovOrig, sizeof (struct iovec) * old->iovOrigCount);
-	FREE(old);
-	return (0);
-}
-
-/* Copy a scatter/gather vector and initialize a stream handler's IO. */
-static int
-copyvec(evStream *str, const struct iovec *iov, int iocnt) {
-	int i;
-
-	str->iovOrig = (struct iovec *)memget(sizeof(struct iovec) * iocnt);
-	if (str->iovOrig == NULL) {
-		errno = ENOMEM;
-		return (-1);
-	}
-	str->ioTotal = 0;
-	for (i = 0; i < iocnt; i++) {
-		str->iovOrig[i] = iov[i];
-		str->ioTotal += iov[i].iov_len;
-	}
-	str->iovOrigCount = iocnt;
-	str->iovCur = str->iovOrig;
-	str->iovCurCount = str->iovOrigCount;
-	str->ioDone = 0;
-	return (0);
-}
-
-/* Pull off or truncate lead iovec(s). */
-static void
-consume(evStream *str, size_t bytes) {
-	while (bytes > 0U) {
-		if (bytes < (size_t)str->iovCur->iov_len) {
-			str->iovCur->iov_len -= bytes;
-			str->iovCur->iov_base = (void *)
-				((u_char *)str->iovCur->iov_base + bytes);
-			str->ioDone += bytes;
-			bytes = 0;
-		} else {
-			bytes -= str->iovCur->iov_len;
-			str->ioDone += str->iovCur->iov_len;
-			str->iovCur++;
-			str->iovCurCount--;
-		}
-	}
-}
-
-/* Add a stream to Done list and deselect the FD. */
-static void
-done(evContext opaqueCtx, evStream *str) {
-	evContext_p *ctx = opaqueCtx.opaque;
-
-	if (ctx->strLast != NULL) {
-		str->prevDone = ctx->strLast;
-		ctx->strLast->nextDone = str;
-		ctx->strLast = str;
-	} else {
-		INSIST(ctx->strDone == NULL);
-		ctx->strDone = ctx->strLast = str;
-	}
-	evDeselectFD(opaqueCtx, str->file);
-	str->file.opaque = NULL;
-	/* evDrop() will call evCancelRW() on us. */
-}
-
-/* Dribble out some bytes on the stream.  (Called by evDispatch().) */
-static void
-writable(evContext opaqueCtx, void *uap, int fd, int evmask) {
-	evStream *str = uap;
-	int bytes;
-
-	UNUSED(evmask);
-
-	bytes = writev(fd, str->iovCur, str->iovCurCount);
-	if (bytes > 0) {
-		if ((str->flags & EV_STR_TIMEROK) != 0)
-			evTouchIdleTimer(opaqueCtx, str->timer);
-		consume(str, bytes);
-	} else {
-		if (bytes < 0 && errno != EINTR) {
-			str->ioDone = -1;
-			str->ioErrno = errno;
-		}
-	}
-	if (str->ioDone == -1 || str->ioDone == str->ioTotal)
-		done(opaqueCtx, str);
-}
-
-/* Scoop up some bytes from the stream.  (Called by evDispatch().) */
-static void
-readable(evContext opaqueCtx, void *uap, int fd, int evmask) {
-	evStream *str = uap;
-	int bytes;
-
-	UNUSED(evmask);
-
-	bytes = readv(fd, str->iovCur, str->iovCurCount);
-	if (bytes > 0) {
-		if ((str->flags & EV_STR_TIMEROK) != 0)
-			evTouchIdleTimer(opaqueCtx, str->timer);
-		consume(str, bytes);
-	} else {
-		if (bytes == 0)
-			str->ioDone = 0;
-		else {
-			if (errno != EINTR) {
-				str->ioDone = -1;
-				str->ioErrno = errno;
-			}
-		}
-	}
-	if (str->ioDone <= 0 || str->ioDone == str->ioTotal)
-		done(opaqueCtx, str);
-}
-#endif
diff --git a/libc/netbsd/isc/ev_timers.c b/libc/netbsd/isc/ev_timers.c
deleted file mode 100644
index 9674687..0000000
--- a/libc/netbsd/isc/ev_timers.c
+++ /dev/null
@@ -1,504 +0,0 @@
-/*	$NetBSD: ev_timers.c,v 1.2 2004/05/20 19:52:31 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * Copyright (c) 1995-1999 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-/* ev_timers.c - implement timers for the eventlib
- * vix 09sep95 [initial]
- */
-
-#include <sys/cdefs.h>
-#if !defined(LINT) && !defined(CODECENTER) && !defined(lint)
-#ifdef notdef
-static const char rcsid[] = "Id: ev_timers.c,v 1.2.2.1.4.5 2004/03/17 02:39:13 marka Exp";
-#else
-__RCSID("$NetBSD: ev_timers.c,v 1.2 2004/05/20 19:52:31 christos Exp $");
-#endif
-#endif
-
-/* Import. */
-
-#include <errno.h>
-
-#include <isc/assertions.h>
-#include <isc/eventlib.h>
-#include "eventlib_p.h"
-
-/* Constants. */
-
-#define	MILLION 1000000
-#define BILLION 1000000000
-
-/* Forward. */
-
-#ifndef _LIBC
-static int due_sooner(void *, void *);
-static void set_index(void *, int);
-static void free_timer(void *, void *);
-static void print_timer(void *, void *);
-static void idle_timeout(evContext, void *, struct timespec, struct timespec);
-
-/* Private type. */
-
-typedef struct {
-	evTimerFunc	func;
-	void *		uap;
-	struct timespec	lastTouched;
-	struct timespec	max_idle;
-	evTimer *	timer;
-} idle_timer;
-#endif
-
-/* Public. */
-
-struct timespec
-evConsTime(time_t sec, long nsec) {
-	struct timespec x;
-
-	x.tv_sec = sec;
-	x.tv_nsec = nsec;
-	return (x);
-}
-
-struct timespec
-evAddTime(struct timespec addend1, struct timespec addend2) {
-	struct timespec x;
-
-	x.tv_sec = addend1.tv_sec + addend2.tv_sec;
-	x.tv_nsec = addend1.tv_nsec + addend2.tv_nsec;
-	if (x.tv_nsec >= BILLION) {
-		x.tv_sec++;
-		x.tv_nsec -= BILLION;
-	}
-	return (x);
-}
-
-struct timespec
-evSubTime(struct timespec minuend, struct timespec subtrahend) {
-	struct timespec x;
-
-	x.tv_sec = minuend.tv_sec - subtrahend.tv_sec;
-	if (minuend.tv_nsec >= subtrahend.tv_nsec)
-		x.tv_nsec = minuend.tv_nsec - subtrahend.tv_nsec;
-	else {
-		x.tv_nsec = BILLION - subtrahend.tv_nsec + minuend.tv_nsec;
-		x.tv_sec--;
-	}
-	return (x);
-}
-
-int
-evCmpTime(struct timespec a, struct timespec b) {
-	long x = a.tv_sec - b.tv_sec;
-
-	if (x == 0L)
-		x = a.tv_nsec - b.tv_nsec;
-	return (x < 0L ? (-1) : x > 0L ? (1) : (0));
-}
-
-struct timespec
-evNowTime() {
-	struct timeval now;
-#ifdef CLOCK_REALTIME
-	struct timespec tsnow;
-	int m = CLOCK_REALTIME;
-
-#ifdef CLOCK_MONOTONIC
-	if (__evOptMonoTime)
-		m = CLOCK_MONOTONIC;
-#endif
-	if (clock_gettime(m, &tsnow) == 0)
-		return (tsnow);
-#endif
-	if (gettimeofday(&now, NULL) < 0)
-		return (evConsTime(0L, 0L));
-	return (evTimeSpec(now));
-}
-
-struct timespec
-evUTCTime(void) {
-	struct timeval now;
-#ifdef CLOCK_REALTIME
-	struct timespec tsnow;
-	if (clock_gettime(CLOCK_REALTIME, &tsnow) == 0)
-		return (tsnow);
-#endif
-	if (gettimeofday(&now, NULL) < 0)
-		return (evConsTime(0L, 0L));
-	return (evTimeSpec(now));
-}
-
-#ifndef _LIBC
-struct timespec
-evLastEventTime(evContext opaqueCtx) {
-	evContext_p *ctx = opaqueCtx.opaque;
-
-	return (ctx->lastEventTime);
-}
-#endif
-
-struct timespec
-evTimeSpec(struct timeval tv) {
-	struct timespec ts;
-
-	ts.tv_sec = tv.tv_sec;
-	ts.tv_nsec = tv.tv_usec * 1000;
-	return (ts);
-}
-
-struct timeval
-evTimeVal(struct timespec ts) {
-	struct timeval tv;
-
-	tv.tv_sec = ts.tv_sec;
-	tv.tv_usec = ts.tv_nsec / 1000;
-	return (tv);
-}
-
-#ifndef _LIBC
-int
-evSetTimer(evContext opaqueCtx,
-	   evTimerFunc func,
-	   void *uap,
-	   struct timespec due,
-	   struct timespec inter,
-	   evTimerID *opaqueID
-) {
-	evContext_p *ctx = opaqueCtx.opaque;
-	evTimer *id;
-
-	printf("evSetTimer(ctx %p, func %p, uap %p, due %ld.%09ld, inter %ld.%09ld)\n",
-		 ctx, func, uap,
-		 (long)due.tv_sec, due.tv_nsec,
-		 (long)inter.tv_sec, inter.tv_nsec);
-
-#ifdef __hpux
-	/*
-	 * tv_sec and tv_nsec are unsigned.
-	 */
-	if (due.tv_nsec >= BILLION)
-		EV_ERR(EINVAL);
-
-	if (inter.tv_nsec >= BILLION)
-		EV_ERR(EINVAL);
-#else
-	if (due.tv_sec < 0 || due.tv_nsec < 0 || due.tv_nsec >= BILLION)
-		EV_ERR(EINVAL);
-
-	if (inter.tv_sec < 0 || inter.tv_nsec < 0 || inter.tv_nsec >= BILLION)
-		EV_ERR(EINVAL);
-#endif
-
-	/* due={0,0} is a magic cookie meaning "now." */
-	if (due.tv_sec == (time_t)0 && due.tv_nsec == 0L)
-		due = evNowTime();
-
-	/* Allocate and fill. */
-	OKNEW(id);
-	id->func = func;
-	id->uap = uap;
-	id->due = due;
-	id->inter = inter;
-
-	if (heap_insert(ctx->timers, id) < 0)
-		return (-1);
-
-	/* Remember the ID if the caller provided us a place for it. */
-	if (opaqueID)
-		opaqueID->opaque = id;
-
-	if (ctx->debug > 7) {
-		printf("timers after evSetTimer:\n");
-		(void) heap_for_each(ctx->timers, print_timer, (void *)ctx);
-	}
-
-	return (0);
-}
-
-int
-evClearTimer(evContext opaqueCtx, evTimerID id) {
-	evContext_p *ctx = opaqueCtx.opaque;
-	evTimer *del = id.opaque;
-
-	if (ctx->cur != NULL &&
-	    ctx->cur->type == Timer &&
-	    ctx->cur->u.timer.this == del) {
-		printf("deferring delete of timer (executing)\n");
-		/*
-		 * Setting the interval to zero ensures that evDrop() will
-		 * clean up the timer.
-		 */
-		del->inter = evConsTime(0, 0);
-		return (0);
-	}
-
-	if (heap_element(ctx->timers, del->index) != del)
-		EV_ERR(ENOENT);
-
-	if (heap_delete(ctx->timers, del->index) < 0)
-		return (-1);
-	FREE(del);
-
-	if (ctx->debug > 7) {
-		printf("timers after evClearTimer:\n");
-		(void) heap_for_each(ctx->timers, print_timer, (void *)ctx);
-	}
-
-	return (0);
-}
-
-int
-evConfigTimer(evContext opaqueCtx,
-	     evTimerID id,
-	     const char *param,
-	     int value
-) {
-	evContext_p *ctx = opaqueCtx.opaque;
-	evTimer *timer = id.opaque;
-	int result=0;
-
-	UNUSED(value);
-
-	if (heap_element(ctx->timers, timer->index) != timer)
-		EV_ERR(ENOENT);
-
-	if (strcmp(param, "rate") == 0)
-		timer->mode |= EV_TMR_RATE;
-	else if (strcmp(param, "interval") == 0)
-		timer->mode &= ~EV_TMR_RATE;
-	else
-		EV_ERR(EINVAL);
-
-	return (result);
-}
-
-int
-evResetTimer(evContext opaqueCtx,
-	     evTimerID id,
-	     evTimerFunc func,
-	     void *uap,
-	     struct timespec due,
-	     struct timespec inter
-) {
-	evContext_p *ctx = opaqueCtx.opaque;
-	evTimer *timer = id.opaque;
-	struct timespec old_due;
-	int result=0;
-
-	if (heap_element(ctx->timers, timer->index) != timer)
-		EV_ERR(ENOENT);
-
-#ifdef __hpux
-	/*
-	 * tv_sec and tv_nsec are unsigned.
-	 */
-	if (due.tv_nsec >= BILLION)
-		EV_ERR(EINVAL);
-
-	if (inter.tv_nsec >= BILLION)
-		EV_ERR(EINVAL);
-#else
-	if (due.tv_sec < 0 || due.tv_nsec < 0 || due.tv_nsec >= BILLION)
-		EV_ERR(EINVAL);
-
-	if (inter.tv_sec < 0 || inter.tv_nsec < 0 || inter.tv_nsec >= BILLION)
-		EV_ERR(EINVAL);
-#endif
-
-	old_due = timer->due;
-
-	timer->func = func;
-	timer->uap = uap;
-	timer->due = due;
-	timer->inter = inter;
-
-	switch (evCmpTime(due, old_due)) {
-	case -1:
-		result = heap_increased(ctx->timers, timer->index);
-		break;
-	case 0:
-		result = 0;
-		break;
-	case 1:
-		result = heap_decreased(ctx->timers, timer->index);
-		break;
-	}
-
-	if (ctx->debug > 7) {
-		printf("timers after evResetTimer:\n");
-		(void) heap_for_each(ctx->timers, print_timer, (void *)ctx);
-	}
-
-	return (result);
-}
-
-int
-evSetIdleTimer(evContext opaqueCtx,
-		evTimerFunc func,
-		void *uap,
-		struct timespec max_idle,
-		evTimerID *opaqueID
-) {
-	evContext_p *ctx = opaqueCtx.opaque;
-	idle_timer *tt;
-
-	/* Allocate and fill. */
-	OKNEW(tt);
-	tt->func = func;
-	tt->uap = uap;
-	tt->lastTouched = ctx->lastEventTime;
-	tt->max_idle = max_idle;
-
-	if (evSetTimer(opaqueCtx, idle_timeout, tt,
-		       evAddTime(ctx->lastEventTime, max_idle),
-		       max_idle, opaqueID) < 0) {
-		FREE(tt);
-		return (-1);
-	}
-
-	tt->timer = opaqueID->opaque;
-
-	return (0);
-}
-
-int
-evClearIdleTimer(evContext opaqueCtx, evTimerID id) {
-	evTimer *del = id.opaque;
-	idle_timer *tt = del->uap;
-
-	FREE(tt);
-	return (evClearTimer(opaqueCtx, id));
-}
-
-int
-evResetIdleTimer(evContext opaqueCtx,
-		 evTimerID opaqueID,
-		 evTimerFunc func,
-		 void *uap,
-		 struct timespec max_idle
-) {
-	evContext_p *ctx = opaqueCtx.opaque;
-	evTimer *timer = opaqueID.opaque;
-	idle_timer *tt = timer->uap;
-
-	tt->func = func;
-	tt->uap = uap;
-	tt->lastTouched = ctx->lastEventTime;
-	tt->max_idle = max_idle;
-
-	return (evResetTimer(opaqueCtx, opaqueID, idle_timeout, tt,
-			     evAddTime(ctx->lastEventTime, max_idle),
-			     max_idle));
-}
-
-int
-evTouchIdleTimer(evContext opaqueCtx, evTimerID id) {
-	evContext_p *ctx = opaqueCtx.opaque;
-	evTimer *t = id.opaque;
-	idle_timer *tt = t->uap;
-
-	tt->lastTouched = ctx->lastEventTime;
-
-	return (0);
-}
-
-/* Public to the rest of eventlib. */
-
-heap_context
-evCreateTimers(const evContext_p *ctx) {
-
-	UNUSED(ctx);
-
-	return (heap_new(due_sooner, set_index, 2048));
-}
-
-void
-evDestroyTimers(const evContext_p *ctx) {
-	(void) heap_for_each(ctx->timers, free_timer, NULL);
-	(void) heap_free(ctx->timers);
-}
-
-/* Private. */
-
-static int
-due_sooner(void *a, void *b) {
-	evTimer *a_timer, *b_timer;
-
-	a_timer = a;
-	b_timer = b;
-	return (evCmpTime(a_timer->due, b_timer->due) < 0);
-}
-
-static void
-set_index(void *what, int idx) {
-	evTimer *timer;
-
-	timer = what;
-	timer->index = idx;
-}
-
-static void
-free_timer(void *what, void *uap) {
-	evTimer *t = what;
-
-	UNUSED(uap);
-
-	FREE(t);
-}
-
-static void
-print_timer(void *what, void *uap) {
-	evTimer *cur = what;
-	evContext_p *ctx = uap;
-
-	cur = what;
-	evPrintf(ctx, 7,
-	    "  func %p, uap %p, due %ld.%09ld, inter %ld.%09ld\n",
-		 cur->func, cur->uap,
-		 (long)cur->due.tv_sec, cur->due.tv_nsec,
-		 (long)cur->inter.tv_sec, cur->inter.tv_nsec);
-}
-
-static void
-idle_timeout(evContext opaqueCtx,
-	     void *uap,
-	     struct timespec due,
-	     struct timespec inter
-) {
-	evContext_p *ctx = opaqueCtx.opaque;
-	idle_timer *this = uap;
-	struct timespec idle;
-
-	UNUSED(due);
-	UNUSED(inter);
-	
-	idle = evSubTime(ctx->lastEventTime, this->lastTouched);
-	if (evCmpTime(idle, this->max_idle) >= 0) {
-		(this->func)(opaqueCtx, this->uap, this->timer->due,
-			     this->max_idle);
-		/*
-		 * Setting the interval to zero will cause the timer to
-		 * be cleaned up in evDrop().
-		 */
-		this->timer->inter = evConsTime(0L, 0L);
-		FREE(this);
-	} else {
-		/* evDrop() will reschedule the timer. */
-		this->timer->inter = evSubTime(this->max_idle, idle);
-	}
-}
-#endif
diff --git a/libc/netbsd/isc/eventlib_p.h b/libc/netbsd/isc/eventlib_p.h
deleted file mode 100644
index 7edc5a0..0000000
--- a/libc/netbsd/isc/eventlib_p.h
+++ /dev/null
@@ -1,233 +0,0 @@
-/*	$NetBSD: eventlib_p.h,v 1.1.1.1 2004/05/20 19:34:32 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * Copyright (c) 1995-1999 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-/* eventlib_p.h - private interfaces for eventlib
- * vix 09sep95 [initial]
- *
- * Id: eventlib_p.h,v 1.3.2.1.4.1 2004/03/09 08:33:43 marka Exp
- */
-
-#ifndef _EVENTLIB_P_H
-#define _EVENTLIB_P_H
-
-#include <sys/param.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <sys/un.h>
-
-#define EVENTLIB_DEBUG 1
-
-#include <errno.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include <isc/heap.h>
-#include <isc/list.h>
-#include <isc/memcluster.h>
-
-
-#define	EV_MASK_ALL	(EV_READ | EV_WRITE | EV_EXCEPT)
-#define EV_ERR(e)		return (errno = (e), -1)
-#define OK(x)		if ((x) < 0) EV_ERR(errno); else (void)NULL
-
-
-#if HAVE_MEM_GET_SET
-#define	NEW(p)		if (((p) = memget(sizeof *(p))) != NULL) \
-				FILL(p); \
-			else \
-				(void)NULL;
-#define OKNEW(p)	if (!((p) = memget(sizeof *(p)))) { \
-				errno = ENOMEM; \
-				return (-1); \
-			} else \
-				FILL(p)
-#define FREE(p)		memput((p), sizeof *(p))
-
-#if EVENTLIB_DEBUG
-#define FILL(p)		memset((p), 0xF5, sizeof *(p))
-#else
-#define FILL(p)
-#endif
-
-#else
-
-#define	NEW(p) 	p = malloc(sizeof *(p));
-#define OKNEW(p) if (!((p) = malloc(sizeof *(p)))) { errno = ENOMEM; return (-1); }
-#define FREE(p)	free(p)
-#define FILL(p)
-
-#endif
-
-
-typedef struct evConn {
-	evConnFunc	func;
-	void *		uap;
-	int		fd;
-	int		flags;
-#define EV_CONN_LISTEN		0x0001		/* Connection is a listener. */
-#define EV_CONN_SELECTED	0x0002		/* evSelectFD(conn->file). */
-#define EV_CONN_BLOCK		0x0004		/* Listener fd was blocking. */
-	evFileID	file;
-	struct evConn *	prev;
-	struct evConn *	next;
-} evConn;
-
-typedef struct evAccept {
-	int		fd;
-	union {
-		struct sockaddr		sa;
-		struct sockaddr_in	in;
-#ifndef NO_SOCKADDR_UN
-		struct sockaddr_un	un;
-#endif
-	}		la;
-	socklen_t	lalen;
-	union {
-		struct sockaddr		sa;
-		struct sockaddr_in	in;
-#ifndef NO_SOCKADDR_UN
-		struct sockaddr_un	un;
-#endif
-	}		ra;
-	socklen_t	ralen;
-	int		ioErrno;
-	evConn *	conn;
-	LINK(struct evAccept) link;
-} evAccept;
-
-typedef struct evFile {
-	evFileFunc	func;
-	void *		uap;
-	int		fd;
-	int		eventmask;
-	int		preemptive;
-	struct evFile *	prev;
-	struct evFile *	next;
-	struct evFile *	fdprev;
-	struct evFile *	fdnext;
-} evFile;
-
-typedef struct evStream {
-	evStreamFunc	func;
-	void *		uap;
-	evFileID	file;
-	evTimerID	timer;
-	int		flags;
-#define EV_STR_TIMEROK	0x0001	/* IFF timer valid. */
-	int		fd;
-	struct iovec *	iovOrig;
-	int		iovOrigCount;
-	struct iovec *	iovCur;
-	int		iovCurCount;
-	int		ioTotal;
-	int		ioDone;
-	int		ioErrno;
-	struct evStream	*prevDone, *nextDone;
-	struct evStream	*prev, *next;
-} evStream;
-
-typedef struct evTimer {
-	evTimerFunc	func;
-	void *		uap;
-	struct timespec	due, inter;
-	int		index;
-	int		mode;
-#define EV_TMR_RATE	1
-} evTimer;
-
-typedef struct evWait {
-	evWaitFunc	func;
-	void *		uap;
-	const void *	tag;
-	struct evWait *	next;
-} evWait;
-
-typedef struct evWaitList {
-	evWait *		first;
-	evWait *		last;
-	struct evWaitList *	prev;
-	struct evWaitList *	next;
-} evWaitList;
-
-typedef struct evEvent_p {
-	enum {  Accept, File, Stream, Timer, Wait, Free, Null  } type;
-	union {
-		struct {  evAccept *this;  }			accept;
-		struct {  evFile *this; int eventmask;  }	file;
-		struct {  evStream *this;  }			stream;
-		struct {  evTimer *this;  }			timer;
-		struct {  evWait *this;  }			wait;
-		struct {  struct evEvent_p *next;  }		free;
-		struct {  const void *placeholder;  }		null;
-	} u;
-} evEvent_p;
-
-typedef struct {
-	/* Global. */
-	const evEvent_p	*cur;
-	/* Debugging. */
-	int		debug;
-	FILE		*output;
-	/* Connections. */
-	evConn		*conns;
-	LIST(evAccept)	accepts;
-	/* Files. */
-	evFile		*files, *fdNext;
-	fd_set		rdLast, rdNext;
-	fd_set		wrLast, wrNext;
-	fd_set		exLast, exNext;
-	fd_set		nonblockBefore;
-	int		fdMax, fdCount, highestFD;
-	evFile		*fdTable[FD_SETSIZE];
-#ifdef EVENTLIB_TIME_CHECKS
-	struct timespec	lastSelectTime;
-	int		lastFdCount;
-#endif
-	/* Streams. */
-	evStream	*streams;
-	evStream	*strDone, *strLast;
-	/* Timers. */
-	struct timespec	lastEventTime;
-	heap_context	timers;
-	/* Waits. */
-	evWaitList	*waitLists;
-	evWaitList	waitDone;
-} evContext_p;
-
-/* eventlib.c */
-#define evPrintf __evPrintf
-void evPrintf(const evContext_p *ctx, int level, const char *fmt, ...);
-
-/* ev_timers.c */
-#define evCreateTimers __evCreateTimers
-heap_context evCreateTimers(const evContext_p *);
-#define evDestroyTimers __evDestroyTimers
-void evDestroyTimers(const evContext_p *);
-
-/* ev_waits.c */
-#define evFreeWait __evFreeWait
-evWait *evFreeWait(evContext_p *ctx, evWait *old);
-
-/* Global options */
-int		__evOptMonoTime;
-
-#endif /*_EVENTLIB_P_H*/
diff --git a/libc/netbsd/nameser/ns_name.c b/libc/netbsd/nameser/ns_name.c
deleted file mode 100644
index 85d2f60..0000000
--- a/libc/netbsd/nameser/ns_name.c
+++ /dev/null
@@ -1,970 +0,0 @@
-/*	$NetBSD: ns_name.c,v 1.3 2004/11/07 02:19:49 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-#ifdef notdef
-static const char rcsid[] = "Id: ns_name.c,v 1.3.2.4.4.2 2004/05/04 03:27:47 marka Exp";
-#else
-__RCSID("$NetBSD: ns_name.c,v 1.3 2004/11/07 02:19:49 christos Exp $");
-#endif
-#endif
-
-#include <sys/types.h>
-
-#include <netinet/in.h>
-#include "arpa_nameser.h"
-
-#include <errno.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-#include <string.h>
-#include <ctype.h>
-#include <stdlib.h>
-#include <limits.h>
-
-#ifdef SPRINTF_CHAR
-# define SPRINTF(x) strlen(sprintf/**/x)
-#else
-# define SPRINTF(x) ((size_t)sprintf x)
-#endif
-
-#define NS_TYPE_ELT			0x40 /* EDNS0 extended label type */
-#define DNS_LABELTYPE_BITSTRING		0x41
-
-/* Data. */
-
-static const char	digits[] = "0123456789";
-
-static const char digitvalue[256] = {
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,	/*16*/
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*32*/
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*48*/
-	 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, -1, -1, -1, -1, -1, -1, /*64*/
-	-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*80*/
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*96*/
-	-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*112*/
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*128*/
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
-	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /*256*/
-};
-
-/* Forward. */
-
-static int		special(int);
-static int		printable(int);
-static int		dn_find(const u_char *, const u_char *,
-				const u_char * const *,
-				const u_char * const *);
-static int		encode_bitsring(const char **, const char *,
-					unsigned char **, unsigned char **,
-					unsigned const char *);
-static int		labellen(const u_char *);
-static int		decode_bitstring(const unsigned char **,
-					 char *, const char *);
-
-/* Public. */
-
-/*
- * ns_name_ntop(src, dst, dstsiz)
- *	Convert an encoded domain name to printable ascii as per RFC1035.
- * return:
- *	Number of bytes written to buffer, or -1 (with errno set)
- * notes:
- *	The root is returned as "."
- *	All other domains are returned in non absolute form
- */
-int
-ns_name_ntop(const u_char *src, char *dst, size_t dstsiz)
-{
-	const u_char *cp;
-	char *dn, *eom;
-	u_char c;
-	u_int n;
-	int l;
-
-	cp = src;
-	dn = dst;
-	eom = dst + dstsiz;
-
-	while ((n = *cp++) != 0) {
-		if ((n & NS_CMPRSFLGS) == NS_CMPRSFLGS) {
-			/* Some kind of compression pointer. */
-			errno = EMSGSIZE;
-			return (-1);
-		}
-		if (dn != dst) {
-			if (dn >= eom) {
-				errno = EMSGSIZE;
-				return (-1);
-			}
-			*dn++ = '.';
-		}
-		if ((l = labellen(cp - 1)) < 0) {
-			errno = EMSGSIZE; /* XXX */
-			return(-1);
-		}
-		if (dn + l >= eom) {
-			errno = EMSGSIZE;
-			return (-1);
-		}
-		if ((n & NS_CMPRSFLGS) == NS_TYPE_ELT) {
-			int m;
-
-			if (n != DNS_LABELTYPE_BITSTRING) {
-				/* XXX: labellen should reject this case */
-				errno = EINVAL;
-				return(-1);
-			}
-			if ((m = decode_bitstring(&cp, dn, eom)) < 0)
-			{
-				errno = EMSGSIZE;
-				return(-1);
-			}
-			dn += m;
-			continue;
-		}
-		for (; l > 0; l--) {
-			c = *cp++;
-			if (special(c)) {
-				if (dn + 1 >= eom) {
-					errno = EMSGSIZE;
-					return (-1);
-				}
-				*dn++ = '\\';
-				*dn++ = (char)c;
-			} else if (!printable(c)) {
-				if (dn + 3 >= eom) {
-					errno = EMSGSIZE;
-					return (-1);
-				}
-				*dn++ = '\\';
-				*dn++ = digits[c / 100];
-				*dn++ = digits[(c % 100) / 10];
-				*dn++ = digits[c % 10];
-			} else {
-				if (dn >= eom) {
-					errno = EMSGSIZE;
-					return (-1);
-				}
-				*dn++ = (char)c;
-			}
-		}
-	}
-	if (dn == dst) {
-		if (dn >= eom) {
-			errno = EMSGSIZE;
-			return (-1);
-		}
-		*dn++ = '.';
-	}
-	if (dn >= eom) {
-		errno = EMSGSIZE;
-		return (-1);
-	}
-	*dn++ = '\0';
-	return (dn - dst);
-}
-
-/*
- * ns_name_pton(src, dst, dstsiz)
- *	Convert a ascii string into an encoded domain name as per RFC1035.
- * return:
- *	-1 if it fails
- *	1 if string was fully qualified
- *	0 is string was not fully qualified
- * notes:
- *	Enforces label and domain length limits.
- */
-
-int
-ns_name_pton(const char *src, u_char *dst, size_t dstsiz)
-{
-	u_char *label, *bp, *eom;
-	int c, n, escaped, e = 0;
-	char *cp;
-
-	escaped = 0;
-	bp = dst;
-	eom = dst + dstsiz;
-	label = bp++;
-
-	while ((c = *src++) != 0) {
-		if (escaped) {
-			if (c == '[') { /* start a bit string label */
-				if ((cp = strchr(src, ']')) == NULL) {
-					errno = EINVAL; /* ??? */
-					return(-1);
-				}
-				if ((e = encode_bitsring(&src, cp + 2,
-							 &label, &bp, eom))
-				    != 0) {
-					errno = e;
-					return(-1);
-				}
-				escaped = 0;
-				label = bp++;
-				if ((c = *src++) == 0)
-					goto done;
-				else if (c != '.') {
-					errno = EINVAL;
-					return(-1);
-				}
-				continue;
-			}
-			else if ((cp = strchr(digits, c)) != NULL) {
-				n = (cp - digits) * 100;
-				if ((c = *src++) == 0 ||
-				    (cp = strchr(digits, c)) == NULL) {
-					errno = EMSGSIZE;
-					return (-1);
-				}
-				n += (cp - digits) * 10;
-				if ((c = *src++) == 0 ||
-				    (cp = strchr(digits, c)) == NULL) {
-					errno = EMSGSIZE;
-					return (-1);
-				}
-				n += (cp - digits);
-				if (n > 255) {
-					errno = EMSGSIZE;
-					return (-1);
-				}
-				c = n;
-			}
-			escaped = 0;
-		} else if (c == '\\') {
-			escaped = 1;
-			continue;
-		} else if (c == '.') {
-			c = (bp - label - 1);
-			if ((c & NS_CMPRSFLGS) != 0) {	/* Label too big. */
-				errno = EMSGSIZE;
-				return (-1);
-			}
-			if (label >= eom) {
-				errno = EMSGSIZE;
-				return (-1);
-			}
-			*label = c;
-			/* Fully qualified ? */
-			if (*src == '\0') {
-				if (c != 0) {
-					if (bp >= eom) {
-						errno = EMSGSIZE;
-						return (-1);
-					}
-					*bp++ = '\0';
-				}
-				if ((bp - dst) > MAXCDNAME) {
-					errno = EMSGSIZE;
-					return (-1);
-				}
-				return (1);
-			}
-			if (c == 0 || *src == '.') {
-				errno = EMSGSIZE;
-				return (-1);
-			}
-			label = bp++;
-			continue;
-		}
-		if (bp >= eom) {
-			errno = EMSGSIZE;
-			return (-1);
-		}
-		*bp++ = (u_char)c;
-	}
-	c = (bp - label - 1);
-	if ((c & NS_CMPRSFLGS) != 0) {		/* Label too big. */
-		errno = EMSGSIZE;
-		return (-1);
-	}
-  done:
-	if (label >= eom) {
-		errno = EMSGSIZE;
-		return (-1);
-	}
-	*label = c;
-	if (c != 0) {
-		if (bp >= eom) {
-			errno = EMSGSIZE;
-			return (-1);
-		}
-		*bp++ = 0;
-	}
-	if ((bp - dst) > MAXCDNAME) {	/* src too big */
-		errno = EMSGSIZE;
-		return (-1);
-	}
-	return (0);
-}
-
-/*
- * ns_name_ntol(src, dst, dstsiz)
- *	Convert a network strings labels into all lowercase.
- * return:
- *	Number of bytes written to buffer, or -1 (with errno set)
- * notes:
- *	Enforces label and domain length limits.
- */
-
-int
-ns_name_ntol(const u_char *src, u_char *dst, size_t dstsiz)
-{
-	const u_char *cp;
-	u_char *dn, *eom;
-	u_char c;
-	u_int n;
-	int l;
-
-	cp = src;
-	dn = dst;
-	eom = dst + dstsiz;
-
-	if (dn >= eom) {
-		errno = EMSGSIZE;
-		return (-1);
-	}
-	while ((n = *cp++) != 0) {
-		if ((n & NS_CMPRSFLGS) == NS_CMPRSFLGS) {
-			/* Some kind of compression pointer. */
-			errno = EMSGSIZE;
-			return (-1);
-		}
-		*dn++ = n;
-		if ((l = labellen(cp - 1)) < 0) {
-			errno = EMSGSIZE;
-			return (-1);
-		}
-		if (dn + l >= eom) {
-			errno = EMSGSIZE;
-			return (-1);
-		}
-		for (; l > 0; l--) {
-			c = *cp++;
-			if (isupper(c))
-				*dn++ = tolower(c);
-			else
-				*dn++ = c;
-		}
-	}
-	*dn++ = '\0';
-	return (dn - dst);
-}
-
-/*
- * ns_name_unpack(msg, eom, src, dst, dstsiz)
- *	Unpack a domain name from a message, source may be compressed.
- * return:
- *	-1 if it fails, or consumed octets if it succeeds.
- */
-int
-ns_name_unpack(const u_char *msg, const u_char *eom, const u_char *src,
-	       u_char *dst, size_t dstsiz)
-{
-	const u_char *srcp, *dstlim;
-	u_char *dstp;
-	int n, len, checked, l;
-
-	len = -1;
-	checked = 0;
-	dstp = dst;
-	srcp = src;
-	dstlim = dst + dstsiz;
-	if (srcp < msg || srcp >= eom) {
-		errno = EMSGSIZE;
-		return (-1);
-	}
-	/* Fetch next label in domain name. */
-	while ((n = *srcp++) != 0) {
-		/* Check for indirection. */
-		switch (n & NS_CMPRSFLGS) {
-		case 0:
-		case NS_TYPE_ELT:
-			/* Limit checks. */
-			if ((l = labellen(srcp - 1)) < 0) {
-				errno = EMSGSIZE;
-				return(-1);
-			}
-			if (dstp + l + 1 >= dstlim || srcp + l >= eom) {
-				errno = EMSGSIZE;
-				return (-1);
-			}
-			checked += l + 1;
-			*dstp++ = n;
-			memcpy(dstp, srcp, (size_t)l);
-			dstp += l;
-			srcp += l;
-			break;
-
-		case NS_CMPRSFLGS:
-			if (srcp >= eom) {
-				errno = EMSGSIZE;
-				return (-1);
-			}
-			if (len < 0)
-				len = srcp - src + 1;
-			srcp = msg + (((n & 0x3f) << 8) | (*srcp & 0xff));
-			if (srcp < msg || srcp >= eom) {  /* Out of range. */
-				errno = EMSGSIZE;
-				return (-1);
-			}
-			checked += 2;
-			/*
-			 * Check for loops in the compressed name;
-			 * if we've looked at the whole message,
-			 * there must be a loop.
-			 */
-			if (checked >= eom - msg) {
-				errno = EMSGSIZE;
-				return (-1);
-			}
-			break;
-
-		default:
-			errno = EMSGSIZE;
-			return (-1);			/* flag error */
-		}
-	}
-	*dstp = '\0';
-	if (len < 0)
-		len = srcp - src;
-	return (len);
-}
-
-/*
- * ns_name_pack(src, dst, dstsiz, dnptrs, lastdnptr)
- *	Pack domain name 'domain' into 'comp_dn'.
- * return:
- *	Size of the compressed name, or -1.
- * notes:
- *	'dnptrs' is an array of pointers to previous compressed names.
- *	dnptrs[0] is a pointer to the beginning of the message. The array
- *	ends with NULL.
- *	'lastdnptr' is a pointer to the end of the array pointed to
- *	by 'dnptrs'.
- * Side effects:
- *	The list of pointers in dnptrs is updated for labels inserted into
- *	the message as we compress the name.  If 'dnptr' is NULL, we don't
- *	try to compress names. If 'lastdnptr' is NULL, we don't update the
- *	list.
- */
-int
-ns_name_pack(const u_char *src, u_char *dst, int dstsiz,
-	     const u_char **dnptrs, const u_char **lastdnptr)
-{
-	u_char *dstp;
-	const u_char **cpp, **lpp, *eob, *msg;
-	const u_char *srcp;
-	int n, l, first = 1;
-
-	srcp = src;
-	dstp = dst;
-	eob = dstp + dstsiz;
-	lpp = cpp = NULL;
-	if (dnptrs != NULL) {
-		if ((msg = *dnptrs++) != NULL) {
-			for (cpp = dnptrs; *cpp != NULL; cpp++)
-				;
-			lpp = cpp;	/* end of list to search */
-		}
-	} else
-		msg = NULL;
-
-	/* make sure the domain we are about to add is legal */
-	l = 0;
-	do {
-		int l0;
-
-		n = *srcp;
-		if ((n & NS_CMPRSFLGS) == NS_CMPRSFLGS) {
-			errno = EMSGSIZE;
-			return (-1);
-		}
-		if ((l0 = labellen(srcp)) < 0) {
-			errno = EINVAL;
-			return(-1);
-		}
-		l += l0 + 1;
-		if (l > MAXCDNAME) {
-			errno = EMSGSIZE;
-			return (-1);
-		}
-		srcp += l0 + 1;
-	} while (n != 0);
-
-	/* from here on we need to reset compression pointer array on error */
-	srcp = src;
-	do {
-		/* Look to see if we can use pointers. */
-		n = *srcp;
-		if (n != 0 && msg != NULL) {
-			l = dn_find(srcp, msg, (const u_char * const *)dnptrs,
-				    (const u_char * const *)lpp);
-			if (l >= 0) {
-				if (dstp + 1 >= eob) {
-					goto cleanup;
-				}
-				*dstp++ = ((u_int32_t)l >> 8) | NS_CMPRSFLGS;
-				*dstp++ = l % 256;
-				return (dstp - dst);
-			}
-			/* Not found, save it. */
-			if (lastdnptr != NULL && cpp < lastdnptr - 1 &&
-			    (dstp - msg) < 0x4000 && first) {
-				*cpp++ = dstp;
-				*cpp = NULL;
-				first = 0;
-			}
-		}
-		/* copy label to buffer */
-		if ((n & NS_CMPRSFLGS) == NS_CMPRSFLGS) {
-			/* Should not happen. */
-			goto cleanup;
-		}
-		n = labellen(srcp);
-		if (dstp + 1 + n >= eob) {
-			goto cleanup;
-		}
-		memcpy(dstp, srcp, (size_t)(n + 1));
-		srcp += n + 1;
-		dstp += n + 1;
-	} while (n != 0);
-
-	if (dstp > eob) {
-cleanup:
-		if (msg != NULL)
-			*lpp = NULL;
-		errno = EMSGSIZE;
-		return (-1);
-	}
-	return (dstp - dst);
-}
-
-/*
- * ns_name_uncompress(msg, eom, src, dst, dstsiz)
- *	Expand compressed domain name to presentation format.
- * return:
- *	Number of bytes read out of `src', or -1 (with errno set).
- * note:
- *	Root domain returns as "." not "".
- */
-int
-ns_name_uncompress(const u_char *msg, const u_char *eom, const u_char *src,
-		   char *dst, size_t dstsiz)
-{
-	u_char tmp[NS_MAXCDNAME];
-	int n;
-
-	if ((n = ns_name_unpack(msg, eom, src, tmp, sizeof tmp)) == -1)
-		return (-1);
-	if (ns_name_ntop(tmp, dst, dstsiz) == -1)
-		return (-1);
-	return (n);
-}
-
-/*
- * ns_name_compress(src, dst, dstsiz, dnptrs, lastdnptr)
- *	Compress a domain name into wire format, using compression pointers.
- * return:
- *	Number of bytes consumed in `dst' or -1 (with errno set).
- * notes:
- *	'dnptrs' is an array of pointers to previous compressed names.
- *	dnptrs[0] is a pointer to the beginning of the message.
- *	The list ends with NULL.  'lastdnptr' is a pointer to the end of the
- *	array pointed to by 'dnptrs'. Side effect is to update the list of
- *	pointers for labels inserted into the message as we compress the name.
- *	If 'dnptr' is NULL, we don't try to compress names. If 'lastdnptr'
- *	is NULL, we don't update the list.
- */
-int
-ns_name_compress(const char *src, u_char *dst, size_t dstsiz,
-		 const u_char **dnptrs, const u_char **lastdnptr)
-{
-	u_char tmp[NS_MAXCDNAME];
-
-	if (ns_name_pton(src, tmp, sizeof tmp) == -1)
-		return (-1);
-	return (ns_name_pack(tmp, dst, (int)dstsiz, dnptrs, lastdnptr));
-}
-
-/*
- * Reset dnptrs so that there are no active references to pointers at or
- * after src.
- */
-void
-ns_name_rollback(const u_char *src, const u_char **dnptrs,
-		 const u_char **lastdnptr)
-{
-	while (dnptrs < lastdnptr && *dnptrs != NULL) {
-		if (*dnptrs >= src) {
-			*dnptrs = NULL;
-			break;
-		}
-		dnptrs++;
-	}
-}
-
-/*
- * ns_name_skip(ptrptr, eom)
- *	Advance *ptrptr to skip over the compressed name it points at.
- * return:
- *	0 on success, -1 (with errno set) on failure.
- */
-int
-ns_name_skip(const u_char **ptrptr, const u_char *eom)
-{
-	const u_char *cp;
-	u_int n;
-	int l;
-
-	cp = *ptrptr;
-	while (cp < eom && (n = *cp++) != 0) {
-		/* Check for indirection. */
-		switch (n & NS_CMPRSFLGS) {
-		case 0:			/* normal case, n == len */
-			cp += n;
-			continue;
-		case NS_TYPE_ELT: /* EDNS0 extended label */
-			if ((l = labellen(cp - 1)) < 0) {
-				errno = EMSGSIZE; /* XXX */
-				return(-1);
-			}
-			cp += l;
-			continue;
-		case NS_CMPRSFLGS:	/* indirection */
-			cp++;
-			break;
-		default:		/* illegal type */
-			errno = EMSGSIZE;
-			return (-1);
-		}
-		break;
-	}
-	if (cp > eom) {
-		errno = EMSGSIZE;
-		return (-1);
-	}
-	*ptrptr = cp;
-	return (0);
-}
-
-/* Private. */
-
-/*
- * special(ch)
- *	Thinking in noninternationalized USASCII (per the DNS spec),
- *	is this characted special ("in need of quoting") ?
- * return:
- *	boolean.
- */
-static int
-special(int ch) {
-	switch (ch) {
-	case 0x22: /* '"' */
-	case 0x2E: /* '.' */
-	case 0x3B: /* ';' */
-	case 0x5C: /* '\\' */
-	case 0x28: /* '(' */
-	case 0x29: /* ')' */
-	/* Special modifiers in zone files. */
-	case 0x40: /* '@' */
-	case 0x24: /* '$' */
-		return (1);
-	default:
-		return (0);
-	}
-}
-
-/*
- * printable(ch)
- *	Thinking in noninternationalized USASCII (per the DNS spec),
- *	is this character visible and not a space when printed ?
- * return:
- *	boolean.
- */
-static int
-printable(int ch) {
-	return (ch > 0x20 && ch < 0x7f);
-}
-
-/*
- *	Thinking in noninternationalized USASCII (per the DNS spec),
- *	convert this character to lower case if it's upper case.
- */
-static int
-mklower(int ch) {
-	if (ch >= 0x41 && ch <= 0x5A)
-		return (ch + 0x20);
-	return (ch);
-}
-
-/*
- * dn_find(domain, msg, dnptrs, lastdnptr)
- *	Search for the counted-label name in an array of compressed names.
- * return:
- *	offset from msg if found, or -1.
- * notes:
- *	dnptrs is the pointer to the first name on the list,
- *	not the pointer to the start of the message.
- */
-static int
-dn_find(const u_char *domain, const u_char *msg,
-	const u_char * const *dnptrs,
-	const u_char * const *lastdnptr)
-{
-	const u_char *dn, *cp, *sp;
-	const u_char * const *cpp;
-	u_int n;
-
-	for (cpp = dnptrs; cpp < lastdnptr; cpp++) {
-		sp = *cpp;
-		/*
-		 * terminate search on:
-		 * root label
-		 * compression pointer
-		 * unusable offset
-		 */
-		while (*sp != 0 && (*sp & NS_CMPRSFLGS) == 0 &&
-		       (sp - msg) < 0x4000) {
-			dn = domain;
-			cp = sp;
-			while ((n = *cp++) != 0) {
-				/*
-				 * check for indirection
-				 */
-				switch (n & NS_CMPRSFLGS) {
-				case 0:		/* normal case, n == len */
-					n = labellen(cp - 1); /* XXX */
-
-					if (n != *dn++)
-						goto next;
-
-					for (; n > 0; n--)
-						if (mklower(*dn++) !=
-						    mklower(*cp++))
-							goto next;
-					/* Is next root for both ? */
-					if (*dn == '\0' && *cp == '\0')
-						return (sp - msg);
-					if (*dn)
-						continue;
-					goto next;
-				case NS_CMPRSFLGS:	/* indirection */
-					cp = msg + (((n & 0x3f) << 8) | *cp);
-					break;
-
-				default:	/* illegal type */
-					errno = EMSGSIZE;
-					return (-1);
-				}
-			}
- next: ;
-			sp += *sp + 1;
-		}
-	}
-	errno = ENOENT;
-	return (-1);
-}
-
-static int
-decode_bitstring(const unsigned char **cpp, char *dn, const char *eom)
-{
-	const unsigned char *cp = *cpp;
-	char *beg = dn, tc;
-	int b, blen, plen, i;
-
-	if ((blen = (*cp & 0xff)) == 0)
-		blen = 256;
-	plen = (blen + 3) / 4;
-	plen += sizeof("\\[x/]") + (blen > 99 ? 3 : (blen > 9) ? 2 : 1);
-	if (dn + plen >= eom)
-		return(-1);
-
-	cp++;
-	i = SPRINTF((dn, "\\[x"));
-	if (i < 0)
-		return (-1);
-	dn += i;
-	for (b = blen; b > 7; b -= 8, cp++) {
-		i = SPRINTF((dn, "%02x", *cp & 0xff));
-		if (i < 0)
-			return (-1);
-		dn += i;
-	}
-	if (b > 4) {
-		tc = *cp++;
-		i = SPRINTF((dn, "%02x", tc & (0xff << (8 - b))));
-		if (i < 0)
-			return (-1);
-		dn += i;
-	} else if (b > 0) {
-		tc = *cp++;
-		i = SPRINTF((dn, "%1x",
-			       (((u_int32_t)tc >> 4) & 0x0f) & (0x0f << (4 - b))));
-		if (i < 0)
-			return (-1);
-		dn += i;
-	}
-	i = SPRINTF((dn, "/%d]", blen));
-	if (i < 0)
-		return (-1);
-	dn += i;
-
-	*cpp = cp;
-	return(dn - beg);
-}
-
-static int
-encode_bitsring(const char **bp, const char *end, unsigned char **labelp,
-	        unsigned char ** dst, unsigned const char *eom)
-{
-	int afterslash = 0;
-	const char *cp = *bp;
-	unsigned char *tp;
-	char c;
-	const char *beg_blen;
-	char *end_blen = NULL;
-	int value = 0, count = 0, tbcount = 0, blen = 0;
-
-	beg_blen = end_blen = NULL;
-
-	/* a bitstring must contain at least 2 characters */
-	if (end - cp < 2)
-		return(EINVAL);
-
-	/* XXX: currently, only hex strings are supported */
-	if (*cp++ != 'x')
-		return(EINVAL);
-	if (!isxdigit((*cp) & 0xff)) /* reject '\[x/BLEN]' */
-		return(EINVAL);
-
-	for (tp = *dst + 1; cp < end && tp < eom; cp++) {
-		switch((c = *cp)) {
-		case ']':	/* end of the bitstring */
-			if (afterslash) {
-				if (beg_blen == NULL)
-					return(EINVAL);
-				blen = (int)strtol(beg_blen, &end_blen, 10);
-				if (*end_blen != ']')
-					return(EINVAL);
-			}
-			if (count)
-				*tp++ = ((value << 4) & 0xff);
-			cp++;	/* skip ']' */
-			goto done;
-		case '/':
-			afterslash = 1;
-			break;
-		default:
-			if (afterslash) {
-				if (!isdigit(c&0xff))
-					return(EINVAL);
-				if (beg_blen == NULL) {
-
-					if (c == '0') {
-						/* blen never begings with 0 */
-						return(EINVAL);
-					}
-					beg_blen = cp;
-				}
-			} else {
-				if (!isxdigit(c&0xff))
-					return(EINVAL);
-				value <<= 4;
-				value += digitvalue[(int)c];
-				count += 4;
-				tbcount += 4;
-				if (tbcount > 256)
-					return(EINVAL);
-				if (count == 8) {
-					*tp++ = value;
-					count = 0;
-				}
-			}
-			break;
-		}
-	}
-  done:
-	if (cp >= end || tp >= eom)
-		return(EMSGSIZE);
-
-	/*
-	 * bit length validation:
-	 * If a <length> is present, the number of digits in the <bit-data>
-	 * MUST be just sufficient to contain the number of bits specified
-	 * by the <length>. If there are insignificant bits in a final
-	 * hexadecimal or octal digit, they MUST be zero.
-	 * RFC 2673, Section 3.2.
-	 */
-	if (blen > 0) {
-		int traillen;
-
-		if (((blen + 3) & ~3) != tbcount)
-			return(EINVAL);
-		traillen = tbcount - blen; /* between 0 and 3 */
-		if (((value << (8 - traillen)) & 0xff) != 0)
-			return(EINVAL);
-	}
-	else
-		blen = tbcount;
-	if (blen == 256)
-		blen = 0;
-
-	/* encode the type and the significant bit fields */
-	**labelp = DNS_LABELTYPE_BITSTRING;
-	**dst = blen;
-
-	*bp = cp;
-	*dst = tp;
-
-	return(0);
-}
-
-static int
-labellen(const u_char *lp)
-{
-	int bitlen;
-	u_char l = *lp;
-
-	if ((l & NS_CMPRSFLGS) == NS_CMPRSFLGS) {
-		/* should be avoided by the caller */
-		return(-1);
-	}
-
-	if ((l & NS_CMPRSFLGS) == NS_TYPE_ELT) {
-		if (l == DNS_LABELTYPE_BITSTRING) {
-			if ((bitlen = *(lp + 1)) == 0)
-				bitlen = 256;
-			return((bitlen + 7 ) / 8 + 1);
-		}
-		return(-1);	/* unknwon ELT */
-	}
-	return(l);
-}
diff --git a/libc/netbsd/nameser/ns_netint.c b/libc/netbsd/nameser/ns_netint.c
deleted file mode 100644
index 1b2964f..0000000
--- a/libc/netbsd/nameser/ns_netint.c
+++ /dev/null
@@ -1,59 +0,0 @@
-/*	$NetBSD: ns_netint.c,v 1.2 2004/05/20 20:19:00 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-#ifdef notdef
-static const char rcsid[] = "Id: ns_netint.c,v 1.1.206.1 2004/03/09 08:33:44 marka Exp";
-#else
-__RCSID("$NetBSD: ns_netint.c,v 1.2 2004/05/20 20:19:00 christos Exp $");
-#endif
-#endif
-
-/* Import. */
-
-#include "arpa_nameser.h"
-
-/* Public. */
-
-u_int16_t
-ns_get16(const u_char *src) {
-	u_int dst;
-
-	NS_GET16(dst, src);
-	return (dst);
-}
-
-u_int32_t
-ns_get32(const u_char *src) {
-	u_long dst;
-
-	NS_GET32(dst, src);
-	return (dst);
-}
-
-void
-ns_put16(u_int16_t src, u_char *dst) {
-	NS_PUT16(src, dst);
-}
-
-void
-ns_put32(u_int32_t src, u_char *dst) {
-	NS_PUT32(src, dst);
-}
diff --git a/libc/netbsd/nameser/ns_parse.c b/libc/netbsd/nameser/ns_parse.c
deleted file mode 100644
index fd94860..0000000
--- a/libc/netbsd/nameser/ns_parse.c
+++ /dev/null
@@ -1,209 +0,0 @@
-/*	$NetBSD: ns_parse.c,v 1.2 2004/05/20 20:35:05 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-#ifdef notdef
-static const char rcsid[] = "Id: ns_parse.c,v 1.3.2.1.4.1 2004/03/09 08:33:44 marka Exp";
-#else
-__RCSID("$NetBSD: ns_parse.c,v 1.2 2004/05/20 20:35:05 christos Exp $");
-#endif
-#endif
-
-/* Import. */
-
-#include <sys/types.h>
-
-#include <netinet/in.h>
-#include "arpa_nameser.h"
-
-#include <errno.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-#include <string.h>
-
-/* Forward. */
-
-static void	setsection(ns_msg *msg, ns_sect sect);
-
-/* Macros. */
-
-#define RETERR(err) do { errno = (err); return (-1); } while (/*NOTREACHED*//*CONSTCOND*/0)
-
-/* Public. */
-
-/* These need to be in the same order as the nres.h:ns_flag enum. */
-const struct _ns_flagdata _ns_flagdata[16] = {
-	{ 0x8000, 15 },		/* qr. */
-	{ 0x7800, 11 },		/* opcode. */
-	{ 0x0400, 10 },		/* aa. */
-	{ 0x0200, 9 },		/* tc. */
-	{ 0x0100, 8 },		/* rd. */
-	{ 0x0080, 7 },		/* ra. */
-	{ 0x0040, 6 },		/* z. */
-	{ 0x0020, 5 },		/* ad. */
-	{ 0x0010, 4 },		/* cd. */
-	{ 0x000f, 0 },		/* rcode. */
-	{ 0x0000, 0 },		/* expansion (1/6). */
-	{ 0x0000, 0 },		/* expansion (2/6). */
-	{ 0x0000, 0 },		/* expansion (3/6). */
-	{ 0x0000, 0 },		/* expansion (4/6). */
-	{ 0x0000, 0 },		/* expansion (5/6). */
-	{ 0x0000, 0 },		/* expansion (6/6). */
-};
-
-int ns_msg_getflag(ns_msg handle, int flag) {
-	return((u_int32_t)((handle)._flags & _ns_flagdata[flag].mask) >> _ns_flagdata[flag].shift);
-}
-
-int
-ns_skiprr(const u_char *ptr, const u_char *eom, ns_sect section, int count) {
-	const u_char *optr = ptr;
-
-	for (; count > 0; count--) {
-		int b, rdlength;
-
-		b = dn_skipname(ptr, eom);
-		if (b < 0)
-			RETERR(EMSGSIZE);
-		ptr += b/*Name*/ + NS_INT16SZ/*Type*/ + NS_INT16SZ/*Class*/;
-		if (section != ns_s_qd) {
-			if (ptr + NS_INT32SZ + NS_INT16SZ > eom)
-				RETERR(EMSGSIZE);
-			ptr += NS_INT32SZ/*TTL*/;
-			NS_GET16(rdlength, ptr);
-			ptr += rdlength/*RData*/;
-		}
-	}
-	if (ptr > eom)
-		RETERR(EMSGSIZE);
-	return (ptr - optr);
-}
-
-int
-ns_initparse(const u_char *msg, int msglen, ns_msg *handle) {
-	const u_char *eom = msg + msglen;
-	int i;
-
-	memset(handle, 0x5e, sizeof *handle);
-	handle->_msg = msg;
-	handle->_eom = eom;
-	if (msg + NS_INT16SZ > eom)
-		RETERR(EMSGSIZE);
-	NS_GET16(handle->_id, msg);
-	if (msg + NS_INT16SZ > eom)
-		RETERR(EMSGSIZE);
-	NS_GET16(handle->_flags, msg);
-	for (i = 0; i < ns_s_max; i++) {
-		if (msg + NS_INT16SZ > eom)
-			RETERR(EMSGSIZE);
-		NS_GET16(handle->_counts[i], msg);
-	}
-	for (i = 0; i < ns_s_max; i++)
-		if (handle->_counts[i] == 0)
-			handle->_sections[i] = NULL;
-		else {
-			int b = ns_skiprr(msg, eom, (ns_sect)i,
-					  handle->_counts[i]);
-
-			if (b < 0)
-				return (-1);
-			handle->_sections[i] = msg;
-			msg += b;
-		}
-	if (msg != eom)
-		RETERR(EMSGSIZE);
-	setsection(handle, ns_s_max);
-	return (0);
-}
-
-int
-ns_parserr(ns_msg *handle, ns_sect section, int rrnum, ns_rr *rr) {
-	int b;
-
-	/* Make section right. */
-	if ((unsigned)section >= (unsigned)ns_s_max)
-		RETERR(ENODEV);
-	if (section != handle->_sect)
-		setsection(handle, section);
-
-	/* Make rrnum right. */
-	if (rrnum == -1)
-		rrnum = handle->_rrnum;
-	if (rrnum < 0 || rrnum >= handle->_counts[(int)section])
-		RETERR(ENODEV);
-	if (rrnum < handle->_rrnum)
-		setsection(handle, section);
-	if (rrnum > handle->_rrnum) {
-		b = ns_skiprr(handle->_msg_ptr, handle->_eom, section,
-			      rrnum - handle->_rrnum);
-
-		if (b < 0)
-			return (-1);
-		handle->_msg_ptr += b;
-		handle->_rrnum = rrnum;
-	}
-
-	/* Do the parse. */
-	b = dn_expand(handle->_msg, handle->_eom,
-		      handle->_msg_ptr, rr->name, NS_MAXDNAME);
-	if (b < 0)
-		return (-1);
-	handle->_msg_ptr += b;
-	if (handle->_msg_ptr + NS_INT16SZ + NS_INT16SZ > handle->_eom)
-		RETERR(EMSGSIZE);
-	NS_GET16(rr->type, handle->_msg_ptr);
-	NS_GET16(rr->rr_class, handle->_msg_ptr);
-	if (section == ns_s_qd) {
-		rr->ttl = 0;
-		rr->rdlength = 0;
-		rr->rdata = NULL;
-	} else {
-		if (handle->_msg_ptr + NS_INT32SZ + NS_INT16SZ > handle->_eom)
-			RETERR(EMSGSIZE);
-		NS_GET32(rr->ttl, handle->_msg_ptr);
-		NS_GET16(rr->rdlength, handle->_msg_ptr);
-		if (handle->_msg_ptr + rr->rdlength > handle->_eom)
-			RETERR(EMSGSIZE);
-		rr->rdata = handle->_msg_ptr;
-		handle->_msg_ptr += rr->rdlength;
-	}
-	if (++handle->_rrnum > handle->_counts[(int)section])
-		setsection(handle, (ns_sect)((int)section + 1));
-
-	/* All done. */
-	return (0);
-}
-
-/* Private. */
-
-static void
-setsection(ns_msg *msg, ns_sect sect) {
-	msg->_sect = sect;
-	if (sect == ns_s_max) {
-		msg->_rrnum = -1;
-		msg->_msg_ptr = NULL;
-	} else {
-		msg->_rrnum = 0;
-		msg->_msg_ptr = msg->_sections[(int)sect];
-	}
-}
diff --git a/libc/netbsd/nameser/ns_print.c b/libc/netbsd/nameser/ns_print.c
deleted file mode 100644
index 7465e62..0000000
--- a/libc/netbsd/nameser/ns_print.c
+++ /dev/null
@@ -1,915 +0,0 @@
-/*	$NetBSD: ns_print.c,v 1.5 2004/11/07 02:19:49 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-#ifdef notdef
-static const char rcsid[] = "Id: ns_print.c,v 1.3.2.1.4.5 2004/07/28 20:16:45 marka Exp";
-#else
-__RCSID("$NetBSD: ns_print.c,v 1.5 2004/11/07 02:19:49 christos Exp $");
-#endif
-#endif
-
-/* Import. */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-#include "arpa_nameser.h"
-#include <arpa/inet.h>
-
-#include <isc/assertions.h>
-#include <isc/dst.h>
-#include <errno.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-#include <string.h>
-#include <ctype.h>
-#include <assert.h>
-
-#ifdef SPRINTF_CHAR
-# define SPRINTF(x) strlen(sprintf/**/x)
-#else
-# define SPRINTF(x) ((size_t)sprintf x)
-#endif
-
-#ifndef MIN
-#define	MIN(x,y)	((x)<(y)?(x):(y))
-#endif
-
-/* Forward. */
-
-static size_t	prune_origin(const char *name, const char *origin);
-static int	charstr(const u_char *rdata, const u_char *edata,
-			char **buf, size_t *buflen);
-static int	addname(const u_char *msg, size_t msglen,
-			const u_char **p, const char *origin,
-			char **buf, size_t *buflen);
-static void	addlen(size_t len, char **buf, size_t *buflen);
-static int	addstr(const char *src, size_t len,
-		       char **buf, size_t *buflen);
-static int	addtab(size_t len, size_t target, int spaced,
-		       char **buf, size_t *buflen);
-
-/* Macros. */
-
-#define	T(x) \
-	do { \
-		if ((x) < 0) \
-			return (-1); \
-	} while (/*CONSTCOND*/0)
-
-/* Public. */
-
-/*
- * int
- * ns_sprintrr(handle, rr, name_ctx, origin, buf, buflen)
- *	Convert an RR to presentation format.
- * return:
- *	Number of characters written to buf, or -1 (check errno).
- */
-int
-ns_sprintrr(const ns_msg *handle, const ns_rr *rr,
-	    const char *name_ctx, const char *origin,
-	    char *buf, size_t buflen)
-{
-	int n;
-
-	n = ns_sprintrrf(ns_msg_base(*handle), ns_msg_size(*handle),
-			 ns_rr_name(*rr), ns_rr_class(*rr), ns_rr_type(*rr),
-			 ns_rr_ttl(*rr), ns_rr_rdata(*rr), ns_rr_rdlen(*rr),
-			 name_ctx, origin, buf, buflen);
-	return (n);
-}
-
-/*
- * int
- * ns_sprintrrf(msg, msglen, name, class, type, ttl, rdata, rdlen,
- *	       name_ctx, origin, buf, buflen)
- *	Convert the fields of an RR into presentation format.
- * return:
- *	Number of characters written to buf, or -1 (check errno).
- */
-int
-ns_sprintrrf(const u_char *msg, size_t msglen,
-	    const char *name, ns_class class, ns_type type,
-	    u_long ttl, const u_char *rdata, size_t rdlen,
-	    const char *name_ctx, const char *origin,
-	    char *buf, size_t buflen)
-{
-	const char *obuf = buf;
-	const u_char *edata = rdata + rdlen;
-	int spaced = 0;
-
-	const char *comment;
-	char tmp[100];
-	int len, x;
-
-	/*
-	 * Owner.
-	 */
-	if (name_ctx != NULL && ns_samename(name_ctx, name) == 1) {
-		T(addstr("\t\t\t", (size_t)3, &buf, &buflen));
-	} else {
-		len = prune_origin(name, origin);
-		if (*name == '\0') {
-			goto root;
-		} else if (len == 0) {
-			T(addstr("@\t\t\t", (size_t)4, &buf, &buflen));
-		} else {
-			T(addstr(name, (size_t)len, &buf, &buflen));
-			/* Origin not used or not root, and no trailing dot? */
-			if (((origin == NULL || origin[0] == '\0') ||
-			    (origin[0] != '.' && origin[1] != '\0' &&
-			    name[len] == '\0')) && name[len - 1] != '.') {
- root:
-				T(addstr(".", (size_t)1, &buf, &buflen));
-				len++;
-			}
-			T(spaced = addtab((size_t)len, 24, spaced, &buf, &buflen));
-		}
-	}
-
-	/*
-	 * TTL, Class, Type.
-	 */
-	T(x = ns_format_ttl(ttl, buf, buflen));
-	addlen((size_t)x, &buf, &buflen);
-	len = SPRINTF((tmp, " %s %s", p_class(class), p_type(type)));
-	T(addstr(tmp, (size_t)len, &buf, &buflen));
-	T(spaced = addtab((size_t)(x + len), (size_t)16, spaced, &buf, &buflen));
-
-	/*
-	 * RData.
-	 */
-	switch (type) {
-	case ns_t_a:
-		if (rdlen != (size_t)NS_INADDRSZ)
-			goto formerr;
-		(void) inet_ntop(AF_INET, rdata, buf, buflen);
-		addlen(strlen(buf), &buf, &buflen);
-		break;
-
-	case ns_t_cname:
-	case ns_t_mb:
-	case ns_t_mg:
-	case ns_t_mr:
-	case ns_t_ns:
-	case ns_t_ptr:
-	case ns_t_dname:
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-		break;
-
-	case ns_t_hinfo:
-	case ns_t_isdn:
-		/* First word. */
-		T(len = charstr(rdata, edata, &buf, &buflen));
-		if (len == 0)
-			goto formerr;
-		rdata += len;
-		T(addstr(" ", (size_t)1, &buf, &buflen));
-
-
-		/* Second word, optional in ISDN records. */
-		if (type == ns_t_isdn && rdata == edata)
-			break;
-
-		T(len = charstr(rdata, edata, &buf, &buflen));
-		if (len == 0)
-			goto formerr;
-		rdata += len;
-		break;
-
-	case ns_t_soa: {
-		u_long t;
-
-		/* Server name. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-		T(addstr(" ", (size_t)1, &buf, &buflen));
-
-		/* Administrator name. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-		T(addstr(" (\n", (size_t)3, &buf, &buflen));
-		spaced = 0;
-
-		if ((edata - rdata) != 5*NS_INT32SZ)
-			goto formerr;
-
-		/* Serial number. */
-		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		T(addstr("\t\t\t\t\t", (size_t)5, &buf, &buflen));
-		len = SPRINTF((tmp, "%lu", t));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-		T(spaced = addtab((size_t)len, (size_t)16, spaced, &buf, &buflen));
-		T(addstr("; serial\n", (size_t)9, &buf, &buflen));
-		spaced = 0;
-
-		/* Refresh interval. */
-		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		T(addstr("\t\t\t\t\t", (size_t)5, &buf, &buflen));
-		T(len = ns_format_ttl(t, buf, buflen));
-		addlen((size_t)len, &buf, &buflen);
-		T(spaced = addtab((size_t)len, (size_t)16, spaced, &buf, &buflen));
-		T(addstr("; refresh\n", (size_t)10, &buf, &buflen));
-		spaced = 0;
-
-		/* Retry interval. */
-		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		T(addstr("\t\t\t\t\t", (size_t)5, &buf, &buflen));
-		T(len = ns_format_ttl(t, buf, buflen));
-		addlen((size_t)len, &buf, &buflen);
-		T(spaced = addtab((size_t)len, (size_t)16, spaced, &buf, &buflen));
-		T(addstr("; retry\n", (size_t)8, &buf, &buflen));
-		spaced = 0;
-
-		/* Expiry. */
-		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		T(addstr("\t\t\t\t\t", (size_t)5, &buf, &buflen));
-		T(len = ns_format_ttl(t, buf, buflen));
-		addlen((size_t)len, &buf, &buflen);
-		T(spaced = addtab((size_t)len, (size_t)16, spaced, &buf, &buflen));
-		T(addstr("; expiry\n", (size_t)9, &buf, &buflen));
-		spaced = 0;
-
-		/* Minimum TTL. */
-		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		T(addstr("\t\t\t\t\t", (size_t)5, &buf, &buflen));
-		T(len = ns_format_ttl(t, buf, buflen));
-		addlen((size_t)len, &buf, &buflen);
-		T(addstr(" )", (size_t)2, &buf, &buflen));
-		T(spaced = addtab((size_t)len, (size_t)16, spaced, &buf, &buflen));
-		T(addstr("; minimum\n", (size_t)10, &buf, &buflen));
-
-		break;
-	    }
-
-	case ns_t_mx:
-	case ns_t_afsdb:
-	case ns_t_rt: {
-		u_int t;
-
-		if (rdlen < (size_t)NS_INT16SZ)
-			goto formerr;
-
-		/* Priority. */
-		t = ns_get16(rdata);
-		rdata += NS_INT16SZ;
-		len = SPRINTF((tmp, "%u ", t));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-
-		/* Target. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-
-		break;
-	    }
-
-	case ns_t_px: {
-		u_int t;
-
-		if (rdlen < (size_t)NS_INT16SZ)
-			goto formerr;
-
-		/* Priority. */
-		t = ns_get16(rdata);
-		rdata += NS_INT16SZ;
-		len = SPRINTF((tmp, "%u ", t));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-
-		/* Name1. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-		T(addstr(" ", (size_t)1, &buf, &buflen));
-
-		/* Name2. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-
-		break;
-	    }
-
-	case ns_t_x25:
-		T(len = charstr(rdata, edata, &buf, &buflen));
-		if (len == 0)
-			goto formerr;
-		rdata += len;
-		break;
-
-	case ns_t_txt:
-		while (rdata < edata) {
-			T(len = charstr(rdata, edata, &buf, &buflen));
-			if (len == 0)
-				goto formerr;
-			rdata += len;
-			if (rdata < edata)
-				T(addstr(" ", (size_t)1, &buf, &buflen));
-		}
-		break;
-
-	case ns_t_nsap: {
-		char t[2+255*3];
-
-		(void) inet_nsap_ntoa((int)rdlen, rdata, t);
-		T(addstr(t, strlen(t), &buf, &buflen));
-		break;
-	    }
-
-	case ns_t_aaaa:
-		if (rdlen != (size_t)NS_IN6ADDRSZ)
-			goto formerr;
-		(void) inet_ntop(AF_INET6, rdata, buf, buflen);
-		addlen(strlen(buf), &buf, &buflen);
-		break;
-
-	case ns_t_loc: {
-		char t[255];
-
-		/* XXX protocol format checking? */
-		(void) loc_ntoa(rdata, t);
-		T(addstr(t, strlen(t), &buf, &buflen));
-		break;
-	    }
-
-	case ns_t_naptr: {
-		u_int order, preference;
-		char t[50];
-
-		if (rdlen < 2U*NS_INT16SZ)
-			goto formerr;
-
-		/* Order, Precedence. */
-		order = ns_get16(rdata);	rdata += NS_INT16SZ;
-		preference = ns_get16(rdata);	rdata += NS_INT16SZ;
-		len = SPRINTF((t, "%u %u ", order, preference));
-		T(addstr(t, (size_t)len, &buf, &buflen));
-
-		/* Flags. */
-		T(len = charstr(rdata, edata, &buf, &buflen));
-		if (len == 0)
-			goto formerr;
-		rdata += len;
-		T(addstr(" ", (size_t)1, &buf, &buflen));
-
-		/* Service. */
-		T(len = charstr(rdata, edata, &buf, &buflen));
-		if (len == 0)
-			goto formerr;
-		rdata += len;
-		T(addstr(" ", (size_t)1, &buf, &buflen));
-
-		/* Regexp. */
-		T(len = charstr(rdata, edata, &buf, &buflen));
-		if (len < 0)
-			return (-1);
-		if (len == 0)
-			goto formerr;
-		rdata += len;
-		T(addstr(" ", (size_t)1, &buf, &buflen));
-
-		/* Server. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-		break;
-	    }
-
-	case ns_t_srv: {
-		u_int priority, weight, port;
-		char t[50];
-
-		if (rdlen < 3U*NS_INT16SZ)
-			goto formerr;
-
-		/* Priority, Weight, Port. */
-		priority = ns_get16(rdata);  rdata += NS_INT16SZ;
-		weight   = ns_get16(rdata);  rdata += NS_INT16SZ;
-		port     = ns_get16(rdata);  rdata += NS_INT16SZ;
-		len = SPRINTF((t, "%u %u %u ", priority, weight, port));
-		T(addstr(t, (size_t)len, &buf, &buflen));
-
-		/* Server. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-		break;
-	    }
-
-	case ns_t_minfo:
-	case ns_t_rp:
-		/* Name1. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-		T(addstr(" ", (size_t)1, &buf, &buflen));
-
-		/* Name2. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-
-		break;
-
-	case ns_t_wks: {
-		int n, lcnt;
-
-		if (rdlen < 1U + NS_INT32SZ)
-			goto formerr;
-
-		/* Address. */
-		(void) inet_ntop(AF_INET, rdata, buf, buflen);
-		addlen(strlen(buf), &buf, &buflen);
-		rdata += NS_INADDRSZ;
-
-		/* Protocol. */
-		len = SPRINTF((tmp, " %u ( ", *rdata));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-		rdata += NS_INT8SZ;
-
-		/* Bit map. */
-		n = 0;
-		lcnt = 0;
-		while (rdata < edata) {
-			u_int c = *rdata++;
-			do {
-				if (c & 0200) {
-					if (lcnt == 0) {
-						T(addstr("\n\t\t\t\t", (size_t)5,
-							 &buf, &buflen));
-						lcnt = 10;
-						spaced = 0;
-					}
-					len = SPRINTF((tmp, "%d ", n));
-					T(addstr(tmp, (size_t)len, &buf, &buflen));
-					lcnt--;
-				}
-				c <<= 1;
-			} while (++n & 07);
-		}
-		T(addstr(")", (size_t)1, &buf, &buflen));
-
-		break;
-	    }
-
-	case ns_t_key: {
-		char base64_key[NS_MD5RSA_MAX_BASE64];
-		u_int keyflags, protocol, algorithm, key_id;
-		const char *leader;
-		int n;
-
-		if (rdlen < 0U + NS_INT16SZ + NS_INT8SZ + NS_INT8SZ)
-			goto formerr;
-
-		/* Key flags, Protocol, Algorithm. */
-#ifndef _LIBC
-		key_id = dst_s_dns_key_id(rdata, edata-rdata);
-#else
-		key_id = 0;
-#endif
-		keyflags = ns_get16(rdata);  rdata += NS_INT16SZ;
-		protocol = *rdata++;
-		algorithm = *rdata++;
-		len = SPRINTF((tmp, "0x%04x %u %u",
-			       keyflags, protocol, algorithm));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-
-		/* Public key data. */
-		len = b64_ntop(rdata, (size_t)(edata - rdata),
-			       base64_key, sizeof base64_key);
-		if (len < 0)
-			goto formerr;
-		if (len > 15) {
-			T(addstr(" (", (size_t)2, &buf, &buflen));
-			leader = "\n\t\t";
-			spaced = 0;
-		} else
-			leader = " ";
-		for (n = 0; n < len; n += 48) {
-			T(addstr(leader, strlen(leader), &buf, &buflen));
-			T(addstr(base64_key + n, (size_t)MIN(len - n, 48),
-				 &buf, &buflen));
-		}
-		if (len > 15)
-			T(addstr(" )", (size_t)2, &buf, &buflen));
-		n = SPRINTF((tmp, " ; key_tag= %u", key_id));
-		T(addstr(tmp, (size_t)n, &buf, &buflen));
-
-		break;
-	    }
-
-	case ns_t_sig: {
-		char base64_key[NS_MD5RSA_MAX_BASE64];
-		u_int typ, algorithm, labels, footprint;
-		const char *leader;
-		u_long t;
-		int n;
-
-		if (rdlen < 22U)
-			goto formerr;
-
-		/* Type covered, Algorithm, Label count, Original TTL. */
-	        typ = ns_get16(rdata);  rdata += NS_INT16SZ;
-		algorithm = *rdata++;
-		labels = *rdata++;
-		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		len = SPRINTF((tmp, "%s %d %d %lu ",
-			       p_type((int)typ), algorithm, labels, t));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-		if (labels > (u_int)dn_count_labels(name))
-			goto formerr;
-
-		/* Signature expiry. */
-		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		len = SPRINTF((tmp, "%s ", p_secstodate(t)));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-
-		/* Time signed. */
-		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		len = SPRINTF((tmp, "%s ", p_secstodate(t)));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-
-		/* Signature Footprint. */
-		footprint = ns_get16(rdata);  rdata += NS_INT16SZ;
-		len = SPRINTF((tmp, "%u ", footprint));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-
-		/* Signer's name. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-
-		/* Signature. */
-		len = b64_ntop(rdata, (size_t)(edata - rdata),
-			       base64_key, sizeof base64_key);
-		if (len > 15) {
-			T(addstr(" (", (size_t)2, &buf, &buflen));
-			leader = "\n\t\t";
-			spaced = 0;
-		} else
-			leader = " ";
-		if (len < 0)
-			goto formerr;
-		for (n = 0; n < len; n += 48) {
-			T(addstr(leader, strlen(leader), &buf, &buflen));
-			T(addstr(base64_key + n, (size_t)MIN(len - n, 48),
-				 &buf, &buflen));
-		}
-		if (len > 15)
-			T(addstr(" )", (size_t)2, &buf, &buflen));
-		break;
-	    }
-
-	case ns_t_nxt: {
-		int n, c;
-
-		/* Next domain name. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-
-		/* Type bit map. */
-		n = edata - rdata;
-		for (c = 0; c < n*8; c++)
-			if (NS_NXT_BIT_ISSET(c, rdata)) {
-				len = SPRINTF((tmp, " %s", p_type(c)));
-				T(addstr(tmp, (size_t)len, &buf, &buflen));
-			}
-		break;
-	    }
-
-	case ns_t_cert: {
-		u_int c_type, key_tag, alg;
-		int n;
-		unsigned int siz;
-		char base64_cert[8192], tmp1[40];
-		const char *leader;
-
-		c_type  = ns_get16(rdata); rdata += NS_INT16SZ;
-		key_tag = ns_get16(rdata); rdata += NS_INT16SZ;
-		alg = (u_int) *rdata++;
-
-		len = SPRINTF((tmp1, "%d %d %d ", c_type, key_tag, alg));
-		T(addstr(tmp1, (size_t)len, &buf, &buflen));
-		siz = (edata-rdata)*4/3 + 4; /* "+4" accounts for trailing \0 */
-		if (siz > sizeof(base64_cert) * 3/4) {
-			const char *str = "record too long to print";
-			T(addstr(str, strlen(str), &buf, &buflen));
-		}
-		else {
-			len = b64_ntop(rdata, (size_t)(edata-rdata),
-			    base64_cert, siz);
-
-			if (len < 0)
-				goto formerr;
-			else if (len > 15) {
-				T(addstr(" (", (size_t)2, &buf, &buflen));
-				leader = "\n\t\t";
-				spaced = 0;
-			}
-			else
-				leader = " ";
-
-			for (n = 0; n < len; n += 48) {
-				T(addstr(leader, strlen(leader),
-					 &buf, &buflen));
-				T(addstr(base64_cert + n, (size_t)MIN(len - n, 48),
-					 &buf, &buflen));
-			}
-			if (len > 15)
-				T(addstr(" )", (size_t)2, &buf, &buflen));
-		}
-		break;
-	    }
-
-	case ns_t_tkey: {
-		/* KJD - need to complete this */
-		u_long t;
-		int mode, err, keysize;
-
-		/* Algorithm name. */
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-		T(addstr(" ", (size_t)1, &buf, &buflen));
-
-		/* Inception. */
-		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		len = SPRINTF((tmp, "%s ", p_secstodate(t)));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-
-		/* Experation. */
-		t = ns_get32(rdata);  rdata += NS_INT32SZ;
-		len = SPRINTF((tmp, "%s ", p_secstodate(t)));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-
-		/* Mode , Error, Key Size. */
-		/* Priority, Weight, Port. */
-		mode = ns_get16(rdata);  rdata += NS_INT16SZ;
-		err  = ns_get16(rdata);  rdata += NS_INT16SZ;
-		keysize  = ns_get16(rdata);  rdata += NS_INT16SZ;
-		len = SPRINTF((tmp, "%u %u %u ", mode, err, keysize));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-
-		/* XXX need to dump key, print otherdata length & other data */
-		break;
-	    }
-
-	case ns_t_tsig: {
-		/* BEW - need to complete this */
-		int n;
-
-		T(len = addname(msg, msglen, &rdata, origin, &buf, &buflen));
-		T(addstr(" ", (size_t)1, &buf, &buflen));
-		rdata += 8; /* time */
-		n = ns_get16(rdata); rdata += INT16SZ;
-		rdata += n; /* sig */
-		n = ns_get16(rdata); rdata += INT16SZ; /* original id */
-		sprintf(buf, "%d", ns_get16(rdata));
-		rdata += INT16SZ;
-		addlen(strlen(buf), &buf, &buflen);
-		break;
-	    }
-
-	case ns_t_a6: {
-		struct in6_addr a;
-		int pbyte, pbit;
-
-		/* prefix length */
-		if (rdlen == 0U) goto formerr;
-		len = SPRINTF((tmp, "%d ", *rdata));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-		pbit = *rdata;
-		if (pbit > 128) goto formerr;
-		pbyte = (pbit & ~7) / 8;
-		rdata++;
-
-		/* address suffix: provided only when prefix len != 128 */
-		if (pbit < 128) {
-			if (rdata + pbyte >= edata) goto formerr;
-			memset(&a, 0, sizeof(a));
-			memcpy(&a.s6_addr[pbyte], rdata, sizeof(a) - pbyte);
-			(void) inet_ntop(AF_INET6, &a, buf, buflen);
-			addlen(strlen(buf), &buf, &buflen);
-			rdata += sizeof(a) - pbyte;
-		}
-
-		/* prefix name: provided only when prefix len > 0 */
-		if (pbit == 0)
-			break;
-		if (rdata >= edata) goto formerr;
-		T(addstr(" ", (size_t)1, &buf, &buflen));
-		T(addname(msg, msglen, &rdata, origin, &buf, &buflen));
-
-		break;
-	    }
-
-	case ns_t_opt: {
-		len = SPRINTF((tmp, "%u bytes", class));
-		T(addstr(tmp, (size_t)len, &buf, &buflen));
-		break;
-	    }
-
-	default:
-		comment = "unknown RR type";
-		goto hexify;
-	}
-	return (buf - obuf);
- formerr:
-	comment = "RR format error";
- hexify: {
-	int n, m;
-	char *p;
-
-	len = SPRINTF((tmp, "\\# %tu%s\t; %s", edata - rdata,
-		       rdlen != 0 ? " (" : "", comment));
-	T(addstr(tmp, (size_t)len, &buf, &buflen));
-	while (rdata < edata) {
-		p = tmp;
-		p += SPRINTF((p, "\n\t"));
-		spaced = 0;
-		n = MIN(16, edata - rdata);
-		for (m = 0; m < n; m++)
-			p += SPRINTF((p, "%02x ", rdata[m]));
-		T(addstr(tmp, (size_t)(p - tmp), &buf, &buflen));
-		if (n < 16) {
-			T(addstr(")", (size_t)1, &buf, &buflen));
-			T(addtab((size_t)(p - tmp + 1), (size_t)48, spaced, &buf, &buflen));
-		}
-		p = tmp;
-		p += SPRINTF((p, "; "));
-		for (m = 0; m < n; m++)
-			*p++ = (isascii(rdata[m]) && isprint(rdata[m]))
-				? rdata[m]
-				: '.';
-		T(addstr(tmp, (size_t)(p - tmp), &buf, &buflen));
-		rdata += n;
-	}
-	return (buf - obuf);
-    }
-}
-
-/* Private. */
-
-/*
- * size_t
- * prune_origin(name, origin)
- *	Find out if the name is at or under the current origin.
- * return:
- *	Number of characters in name before start of origin,
- *	or length of name if origin does not match.
- * notes:
- *	This function should share code with samedomain().
- */
-static size_t
-prune_origin(const char *name, const char *origin) {
-	const char *oname = name;
-
-	while (*name != '\0') {
-		if (origin != NULL && ns_samename(name, origin) == 1)
-			return (name - oname - (name > oname));
-		while (*name != '\0') {
-			if (*name == '\\') {
-				name++;
-				/* XXX need to handle \nnn form. */
-				if (*name == '\0')
-					break;
-			} else if (*name == '.') {
-				name++;
-				break;
-			}
-			name++;
-		}
-	}
-	return (name - oname);
-}
-
-/*
- * int
- * charstr(rdata, edata, buf, buflen)
- *	Format a <character-string> into the presentation buffer.
- * return:
- *	Number of rdata octets consumed
- *	0 for protocol format error
- *	-1 for output buffer error
- * side effects:
- *	buffer is advanced on success.
- */
-static int
-charstr(const u_char *rdata, const u_char *edata, char **buf, size_t *buflen) {
-	const u_char *odata = rdata;
-	size_t save_buflen = *buflen;
-	char *save_buf = *buf;
-
-	if (addstr("\"", (size_t)1, buf, buflen) < 0)
-		goto enospc;
-	if (rdata < edata) {
-		int n = *rdata;
-
-		if (rdata + 1 + n <= edata) {
-			rdata++;
-			while (n-- > 0) {
-				if (strchr("\n\"\\", *rdata) != NULL)
-					if (addstr("\\", (size_t)1, buf, buflen) < 0)
-						goto enospc;
-				if (addstr((const char *)rdata, (size_t)1,
-					   buf, buflen) < 0)
-					goto enospc;
-				rdata++;
-			}
-		}
-	}
-	if (addstr("\"", (size_t)1, buf, buflen) < 0)
-		goto enospc;
-	return (rdata - odata);
- enospc:
-	errno = ENOSPC;
-	*buf = save_buf;
-	*buflen = save_buflen;
-	return (-1);
-}
-
-static int
-addname(const u_char *msg, size_t msglen,
-	const u_char **pp, const char *origin,
-	char **buf, size_t *buflen)
-{
-	size_t newlen, save_buflen = *buflen;
-	char *save_buf = *buf;
-	int n;
-
-	n = dn_expand(msg, msg + msglen, *pp, *buf, (int)*buflen);
-	if (n < 0)
-		goto enospc;	/* Guess. */
-	newlen = prune_origin(*buf, origin);
-	if (**buf == '\0') {
-		goto root;
-	} else if (newlen == 0U) {
-		/* Use "@" instead of name. */
-		if (newlen + 2 > *buflen)
-			goto enospc;        /* No room for "@\0". */
-		(*buf)[newlen++] = '@';
-		(*buf)[newlen] = '\0';
-	} else {
-		if (((origin == NULL || origin[0] == '\0') ||
-		    (origin[0] != '.' && origin[1] != '\0' &&
-		    (*buf)[newlen] == '\0')) && (*buf)[newlen - 1] != '.') {
-			/* No trailing dot. */
- root:
-			if (newlen + 2 > *buflen)
-				goto enospc;	/* No room for ".\0". */
-			(*buf)[newlen++] = '.';
-			(*buf)[newlen] = '\0';
-		}
-	}
-	*pp += n;
-	addlen(newlen, buf, buflen);
-	**buf = '\0';
-	return (newlen);
- enospc:
-	errno = ENOSPC;
-	*buf = save_buf;
-	*buflen = save_buflen;
-	return (-1);
-}
-
-static void
-addlen(size_t len, char **buf, size_t *buflen) {
-	assert(len <= *buflen);
-	*buf += len;
-	*buflen -= len;
-}
-
-static int
-addstr(const char *src, size_t len, char **buf, size_t *buflen) {
-	if (len >= *buflen) {
-		errno = ENOSPC;
-		return (-1);
-	}
-	memcpy(*buf, src, len);
-	addlen(len, buf, buflen);
-	**buf = '\0';
-	return (0);
-}
-
-static int
-addtab(size_t len, size_t target, int spaced, char **buf, size_t *buflen) {
-	size_t save_buflen = *buflen;
-	char *save_buf = *buf;
-	int t;
-
-	if (spaced || len >= target - 1) {
-		T(addstr("  ", (size_t)2, buf, buflen));
-		spaced = 1;
-	} else {
-		for (t = (target - len - 1) / 8; t >= 0; t--)
-			if (addstr("\t", (size_t)1, buf, buflen) < 0) {
-				*buflen = save_buflen;
-				*buf = save_buf;
-				return (-1);
-			}
-		spaced = 0;
-	}
-	return (spaced);
-}
diff --git a/libc/netbsd/nameser/ns_samedomain.c b/libc/netbsd/nameser/ns_samedomain.c
deleted file mode 100644
index 04fdb61..0000000
--- a/libc/netbsd/nameser/ns_samedomain.c
+++ /dev/null
@@ -1,211 +0,0 @@
-/*	$NetBSD: ns_samedomain.c,v 1.2 2004/05/20 20:35:05 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * Copyright (c) 1995,1999 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-#ifdef notdef
-static const char rcsid[] = "Id: ns_samedomain.c,v 1.1.2.2.4.2 2004/03/16 12:34:17 marka Exp";
-#else
-__RCSID("$NetBSD: ns_samedomain.c,v 1.2 2004/05/20 20:35:05 christos Exp $");
-#endif
-#endif
-
-#include <sys/types.h>
-#include "arpa_nameser.h"
-#include <errno.h>
-#include <string.h>
-
-#ifndef _LIBC
-/*
- * int
- * ns_samedomain(a, b)
- *	Check whether a name belongs to a domain.
- * Inputs:
- *	a - the domain whose ancestory is being verified
- *	b - the potential ancestor we're checking against
- * Return:
- *	boolean - is a at or below b?
- * Notes:
- *	Trailing dots are first removed from name and domain.
- *	Always compare complete subdomains, not only whether the
- *	domain name is the trailing string of the given name.
- *
- *	"host.foobar.top" lies in "foobar.top" and in "top" and in ""
- *	but NOT in "bar.top"
- */
-
-int
-ns_samedomain(const char *a, const char *b) {
-	size_t la, lb;
-	int diff, i, escaped;
-	const char *cp;
-
-	la = strlen(a);
-	lb = strlen(b);
-
-	/* Ignore a trailing label separator (i.e. an unescaped dot) in 'a'. */
-	if (la != 0U && a[la - 1] == '.') {
-		escaped = 0;
-		/* Note this loop doesn't get executed if la==1. */
-		for (i = la - 2; i >= 0; i--)
-			if (a[i] == '\\') {
-				if (escaped)
-					escaped = 0;
-				else
-					escaped = 1;
-			} else
-				break;
-		if (!escaped)
-			la--;
-	}
-
-	/* Ignore a trailing label separator (i.e. an unescaped dot) in 'b'. */
-	if (lb != 0U && b[lb - 1] == '.') {
-		escaped = 0;
-		/* note this loop doesn't get executed if lb==1 */
-		for (i = lb - 2; i >= 0; i--)
-			if (b[i] == '\\') {
-				if (escaped)
-					escaped = 0;
-				else
-					escaped = 1;
-			} else
-				break;
-		if (!escaped)
-			lb--;
-	}
-
-	/* lb == 0 means 'b' is the root domain, so 'a' must be in 'b'. */
-	if (lb == 0U)
-		return (1);
-
-	/* 'b' longer than 'a' means 'a' can't be in 'b'. */
-	if (lb > la)
-		return (0);
-
-	/* 'a' and 'b' being equal at this point indicates sameness. */
-	if (lb == la)
-		return (strncasecmp(a, b, lb) == 0);
-
-	/* Ok, we know la > lb. */
-
-	diff = la - lb;
-
-	/*
-	 * If 'a' is only 1 character longer than 'b', then it can't be
-	 * a subdomain of 'b' (because of the need for the '.' label
-	 * separator).
-	 */
-	if (diff < 2)
-		return (0);
-
-	/*
-	 * If the character before the last 'lb' characters of 'b'
-	 * isn't '.', then it can't be a match (this lets us avoid
-	 * having "foobar.com" match "bar.com").
-	 */
-	if (a[diff - 1] != '.')
-		return (0);
-
-	/*
-	 * We're not sure about that '.', however.  It could be escaped
-         * and thus not a really a label separator.
-	 */
-	escaped = 0;
-	for (i = diff - 2; i >= 0; i--)
-		if (a[i] == '\\') {
-			if (escaped)
-				escaped = 0;
-			else
-				escaped = 1;
-		} else
-			break;
-	if (escaped)
-		return (0);
-
-	/* Now compare aligned trailing substring. */
-	cp = a + diff;
-	return (strncasecmp(cp, b, lb) == 0);
-}
-
-/*
- * int
- * ns_subdomain(a, b)
- *	is "a" a subdomain of "b"?
- */
-int
-ns_subdomain(const char *a, const char *b) {
-	return (ns_samename(a, b) != 1 && ns_samedomain(a, b));
-}
-#endif
-
-/*
- * int
- * ns_makecanon(src, dst, dstsize)
- *	make a canonical copy of domain name "src"
- * notes:
- *	foo -> foo.
- *	foo. -> foo.
- *	foo.. -> foo.
- *	foo\. -> foo\..
- *	foo\\. -> foo\\.
- */
-
-int
-ns_makecanon(const char *src, char *dst, size_t dstsize) {
-	size_t n = strlen(src);
-
-	if (n + sizeof "." > dstsize) {			/* Note: sizeof == 2 */
-		errno = EMSGSIZE;
-		return (-1);
-	}
-	strcpy(dst, src);
-	while (n >= 1U && dst[n - 1] == '.')		/* Ends in "." */
-		if (n >= 2U && dst[n - 2] == '\\' &&	/* Ends in "\." */
-		    (n < 3U || dst[n - 3] != '\\'))	/* But not "\\." */
-			break;
-		else
-			dst[--n] = '\0';
-	dst[n++] = '.';
-	dst[n] = '\0';
-	return (0);
-}
-
-/*
- * int
- * ns_samename(a, b)
- *	determine whether domain name "a" is the same as domain name "b"
- * return:
- *	-1 on error
- *	0 if names differ
- *	1 if names are the same
- */
-
-int
-ns_samename(const char *a, const char *b) {
-	char ta[NS_MAXDNAME], tb[NS_MAXDNAME];
-
-	if (ns_makecanon(a, ta, sizeof ta) < 0 ||
-	    ns_makecanon(b, tb, sizeof tb) < 0)
-		return (-1);
-	if (strcasecmp(ta, tb) == 0)
-		return (1);
-	else
-		return (0);
-}
diff --git a/libc/netbsd/nameser/ns_ttl.c b/libc/netbsd/nameser/ns_ttl.c
deleted file mode 100644
index 0878194..0000000
--- a/libc/netbsd/nameser/ns_ttl.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/*	$NetBSD: ns_ttl.c,v 1.2 2004/05/20 20:35:05 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#ifndef lint
-#ifdef notdef
-static const char rcsid[] = "Id: ns_ttl.c,v 1.1.206.1 2004/03/09 08:33:45 marka Exp";
-#else
-__RCSID("$NetBSD: ns_ttl.c,v 1.2 2004/05/20 20:35:05 christos Exp $");
-#endif
-#endif
-
-/* Import. */
-
-#include "arpa_nameser.h"
-
-#include <ctype.h>
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-
-#ifdef SPRINTF_CHAR
-# define SPRINTF(x) strlen(sprintf/**/x)
-#else
-# define SPRINTF(x) ((size_t)sprintf x)
-#endif
-
-/* Forward. */
-
-static int	fmt1(int t, char s, char **buf, size_t *buflen);
-
-/* Macros. */
-
-#define T(x) if ((x) < 0) return (-1); else
-
-/* Public. */
-
-int
-ns_format_ttl(u_long src, char *dst, size_t dstlen) {
-	char *odst = dst;
-	int secs, mins, hours, days, weeks, x;
-	char *p;
-
-	secs = src % 60;   src /= 60;
-	mins = src % 60;   src /= 60;
-	hours = src % 24;  src /= 24;
-	days = src % 7;    src /= 7;
-	weeks = src;       src = 0;
-
-	x = 0;
-	if (weeks) {
-		T(fmt1(weeks, 'W', &dst, &dstlen));
-		x++;
-	}
-	if (days) {
-		T(fmt1(days, 'D', &dst, &dstlen));
-		x++;
-	}
-	if (hours) {
-		T(fmt1(hours, 'H', &dst, &dstlen));
-		x++;
-	}
-	if (mins) {
-		T(fmt1(mins, 'M', &dst, &dstlen));
-		x++;
-	}
-	if (secs || !(weeks || days || hours || mins)) {
-		T(fmt1(secs, 'S', &dst, &dstlen));
-		x++;
-	}
-
-	if (x > 1) {
-		int ch;
-
-		for (p = odst; (ch = *p) != '\0'; p++)
-			if (isascii(ch) && isupper(ch))
-				*p = tolower(ch);
-	}
-
-	return (dst - odst);
-}
-
-#ifndef _LIBC
-int
-ns_parse_ttl(const char *src, u_long *dst) {
-	u_long ttl, tmp;
-	int ch, digits, dirty;
-
-	ttl = 0;
-	tmp = 0;
-	digits = 0;
-	dirty = 0;
-	while ((ch = *src++) != '\0') {
-		if (!isascii(ch) || !isprint(ch))
-			goto einval;
-		if (isdigit(ch)) {
-			tmp *= 10;
-			tmp += (ch - '0');
-			digits++;
-			continue;
-		}
-		if (digits == 0)
-			goto einval;
-		if (islower(ch))
-			ch = toupper(ch);
-		switch (ch) {
-		case 'W':  tmp *= 7;	/*FALLTHROUGH*/
-		case 'D':  tmp *= 24;	/*FALLTHROUGH*/
-		case 'H':  tmp *= 60;	/*FALLTHROUGH*/
-		case 'M':  tmp *= 60;	/*FALLTHROUGH*/
-		case 'S':  break;
-		default:   goto einval;
-		}
-		ttl += tmp;
-		tmp = 0;
-		digits = 0;
-		dirty = 1;
-	}
-	if (digits > 0) {
-		if (dirty)
-			goto einval;
-		else
-			ttl += tmp;
-	}
-	*dst = ttl;
-	return (0);
-
- einval:
-	errno = EINVAL;
-	return (-1);
-}
-#endif
-
-/* Private. */
-
-static int
-fmt1(int t, char s, char **buf, size_t *buflen) {
-	char tmp[50];
-	size_t len;
-
-	len = SPRINTF((tmp, "%d%c", t, s));
-	if (len + 1 > *buflen)
-		return (-1);
-	strcpy(*buf, tmp);
-	*buf += len;
-	*buflen -= len;
-	return (0);
-}
diff --git a/libc/netbsd/net/base64.c b/libc/netbsd/net/base64.c
deleted file mode 100644
index 70caaf7..0000000
--- a/libc/netbsd/net/base64.c
+++ /dev/null
@@ -1,340 +0,0 @@
-/*	$NetBSD: base64.c,v 1.8 2002/11/11 01:15:17 thorpej Exp $	*/
-
-/*
- * Copyright (c) 1996 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.
- */
-
-/*
- * Portions Copyright (c) 1995 by International Business Machines, Inc.
- *
- * International Business Machines, Inc. (hereinafter called IBM) grants
- * permission under its copyrights to use, copy, modify, and distribute this
- * Software with or without fee, provided that the above copyright notice and
- * all paragraphs of this notice appear in all copies, and that the name of IBM
- * not be used in connection with the marketing of any product incorporating
- * the Software or modifications thereof, without specific, written prior
- * permission.
- *
- * To the extent it has a right to do so, IBM grants an immunity from suit
- * under its patents, if any, for the use, sale or manufacture of products to
- * the extent that such products are used for performing Domain Name System
- * dynamic updates in TCP/IP networks by means of the Software.  No immunity is
- * granted for any product per se or for any other function of any product.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE.  IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
- * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
- * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
- * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: base64.c,v 1.8 2002/11/11 01:15:17 thorpej Exp $");
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include "arpa_nameser.h"
-
-#include <assert.h>
-#include <ctype.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-#include <stdio.h>
-
-#include <stdlib.h>
-#include <string.h>
-
-static const char Base64[] =
-	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
-static const char Pad64 = '=';
-
-/* (From RFC1521 and draft-ietf-dnssec-secext-03.txt)
-   The following encoding technique is taken from RFC 1521 by Borenstein
-   and Freed.  It is reproduced here in a slightly edited form for
-   convenience.
-
-   A 65-character subset of US-ASCII is used, enabling 6 bits to be
-   represented per printable character. (The extra 65th character, "=",
-   is used to signify a special processing function.)
-
-   The encoding process represents 24-bit groups of input bits as output
-   strings of 4 encoded characters. Proceeding from left to right, a
-   24-bit input group is formed by concatenating 3 8-bit input groups.
-   These 24 bits are then treated as 4 concatenated 6-bit groups, each
-   of which is translated into a single digit in the base64 alphabet.
-
-   Each 6-bit group is used as an index into an array of 64 printable
-   characters. The character referenced by the index is placed in the
-   output string.
-
-                         Table 1: The Base64 Alphabet
-
-      Value Encoding  Value Encoding  Value Encoding  Value Encoding
-          0 A            17 R            34 i            51 z
-          1 B            18 S            35 j            52 0
-          2 C            19 T            36 k            53 1
-          3 D            20 U            37 l            54 2
-          4 E            21 V            38 m            55 3
-          5 F            22 W            39 n            56 4
-          6 G            23 X            40 o            57 5
-          7 H            24 Y            41 p            58 6
-          8 I            25 Z            42 q            59 7
-          9 J            26 a            43 r            60 8
-         10 K            27 b            44 s            61 9
-         11 L            28 c            45 t            62 +
-         12 M            29 d            46 u            63 /
-         13 N            30 e            47 v
-         14 O            31 f            48 w         (pad) =
-         15 P            32 g            49 x
-         16 Q            33 h            50 y
-
-   Special processing is performed if fewer than 24 bits are available
-   at the end of the data being encoded.  A full encoding quantum is
-   always completed at the end of a quantity.  When fewer than 24 input
-   bits are available in an input group, zero bits are added (on the
-   right) to form an integral number of 6-bit groups.  Padding at the
-   end of the data is performed using the '=' character.
-
-   Since all base64 input is an integral number of octets, only the
-         -------------------------------------------------
-   following cases can arise:
-
-       (1) the final quantum of encoding input is an integral
-           multiple of 24 bits; here, the final unit of encoded
-	   output will be an integral multiple of 4 characters
-	   with no "=" padding,
-       (2) the final quantum of encoding input is exactly 8 bits;
-           here, the final unit of encoded output will be two
-	   characters followed by two "=" padding characters, or
-       (3) the final quantum of encoding input is exactly 16 bits;
-           here, the final unit of encoded output will be three
-	   characters followed by one "=" padding character.
-   */
-
-int
-b64_ntop(src, srclength, target, targsize)
-	u_char const *src;
-	size_t srclength;
-	char *target;
-	size_t targsize;
-{
-	size_t datalength = 0;
-	u_char input[3];
-	u_char output[4];
-	size_t i;
-
-	assert(src != NULL);
-	assert(target != NULL);
-
-	while (2 < srclength) {
-		input[0] = *src++;
-		input[1] = *src++;
-		input[2] = *src++;
-		srclength -= 3;
-
-		output[0] = (u_int32_t)input[0] >> 2;
-		output[1] = ((u_int32_t)(input[0] & 0x03) << 4) +
-		    ((u_int32_t)input[1] >> 4);
-		output[2] = ((u_int32_t)(input[1] & 0x0f) << 2) +
-		    ((u_int32_t)input[2] >> 6);
-		output[3] = input[2] & 0x3f;
-		assert(output[0] < 64);
-		assert(output[1] < 64);
-		assert(output[2] < 64);
-		assert(output[3] < 64);
-
-		if (datalength + 4 > targsize)
-			return (-1);
-		target[datalength++] = Base64[output[0]];
-		target[datalength++] = Base64[output[1]];
-		target[datalength++] = Base64[output[2]];
-		target[datalength++] = Base64[output[3]];
-	}
-
-	/* Now we worry about padding. */
-	if (0 != srclength) {
-		/* Get what's left. */
-		input[0] = input[1] = input[2] = '\0';
-		for (i = 0; i < srclength; i++)
-			input[i] = *src++;
-
-		output[0] = (u_int32_t)input[0] >> 2;
-		output[1] = ((u_int32_t)(input[0] & 0x03) << 4) +
-		    ((u_int32_t)input[1] >> 4);
-		output[2] = ((u_int32_t)(input[1] & 0x0f) << 2) +
-		    ((u_int32_t)input[2] >> 6);
-		assert(output[0] < 64);
-		assert(output[1] < 64);
-		assert(output[2] < 64);
-
-		if (datalength + 4 > targsize)
-			return (-1);
-		target[datalength++] = Base64[output[0]];
-		target[datalength++] = Base64[output[1]];
-		if (srclength == 1)
-			target[datalength++] = Pad64;
-		else
-			target[datalength++] = Base64[output[2]];
-		target[datalength++] = Pad64;
-	}
-	if (datalength >= targsize)
-		return (-1);
-	target[datalength] = '\0';	/* Returned value doesn't count \0. */
-	return (datalength);
-}
-
-/* skips all whitespace anywhere.
-   converts characters, four at a time, starting at (or after)
-   src from base - 64 numbers into three 8 bit bytes in the target area.
-   it returns the number of data bytes stored at the target, or -1 on error.
- */
-
-int
-b64_pton(src, target, targsize)
-	char const *src;
-	u_char *target;
-	size_t targsize;
-{
-	size_t tarindex;
-	int state, ch;
-	char *pos;
-
-	assert(src != NULL);
-	assert(target != NULL);
-
-	state = 0;
-	tarindex = 0;
-
-	while ((ch = (u_char) *src++) != '\0') {
-		if (isspace(ch))	/* Skip whitespace anywhere. */
-			continue;
-
-		if (ch == Pad64)
-			break;
-
-		pos = strchr(Base64, ch);
-		if (pos == 0) 		/* A non-base64 character. */
-			return (-1);
-
-		switch (state) {
-		case 0:
-			if (target) {
-				if (tarindex >= targsize)
-					return (-1);
-				target[tarindex] = (pos - Base64) << 2;
-			}
-			state = 1;
-			break;
-		case 1:
-			if (target) {
-				if (tarindex + 1 >= targsize)
-					return (-1);
-				target[tarindex] |=
-				    (u_int32_t)(pos - Base64) >> 4;
-				target[tarindex+1]  = ((pos - Base64) & 0x0f)
-							<< 4 ;
-			}
-			tarindex++;
-			state = 2;
-			break;
-		case 2:
-			if (target) {
-				if (tarindex + 1 >= targsize)
-					return (-1);
-				target[tarindex] |=
-					(u_int32_t)(pos - Base64) >> 2;
-				target[tarindex+1] = ((pos - Base64) & 0x03)
-							<< 6;
-			}
-			tarindex++;
-			state = 3;
-			break;
-		case 3:
-			if (target) {
-				if (tarindex >= targsize)
-					return (-1);
-				target[tarindex] |= (pos - Base64);
-			}
-			tarindex++;
-			state = 0;
-			break;
-		default:
-			abort();
-		}
-	}
-
-	/*
-	 * We are done decoding Base-64 chars.  Let's see if we ended
-	 * on a byte boundary, and/or with erroneous trailing characters.
-	 */
-
-	if (ch == Pad64) {		/* We got a pad char. */
-		ch = *src++;		/* Skip it, get next. */
-		switch (state) {
-		case 0:		/* Invalid = in first position */
-		case 1:		/* Invalid = in second position */
-			return (-1);
-
-		case 2:		/* Valid, means one byte of info */
-			/* Skip any number of spaces. */
-			for (; ch != '\0'; ch = (u_char) *src++)
-				if (!isspace(ch))
-					break;
-			/* Make sure there is another trailing = sign. */
-			if (ch != Pad64)
-				return (-1);
-			ch = *src++;		/* Skip the = */
-			/* Fall through to "single trailing =" case. */
-			/* FALLTHROUGH */
-
-		case 3:		/* Valid, means two bytes of info */
-			/*
-			 * We know this char is an =.  Is there anything but
-			 * whitespace after it?
-			 */
-			for (; ch != '\0'; ch = (u_char) *src++)
-				if (!isspace(ch))
-					return (-1);
-
-			/*
-			 * Now make sure for cases 2 and 3 that the "extra"
-			 * bits that slopped past the last full byte were
-			 * zeros.  If we don't check them, they become a
-			 * subliminal channel.
-			 */
-			if (target && target[tarindex] != 0)
-				return (-1);
-		}
-	} else {
-		/*
-		 * We ended by seeing the end of the string.  Make sure we
-		 * have no partial bytes lying around.
-		 */
-		if (state != 0)
-			return (-1);
-	}
-
-	return (tarindex);
-}
diff --git a/libc/netbsd/net/getaddrinfo.c b/libc/netbsd/net/getaddrinfo.c
deleted file mode 100644
index 2dd3d97..0000000
--- a/libc/netbsd/net/getaddrinfo.c
+++ /dev/null
@@ -1,1792 +0,0 @@
-/*	$NetBSD: getaddrinfo.c,v 1.82 2006/03/25 12:09:40 rpaulo Exp $	*/
-/*	$KAME: getaddrinfo.c,v 1.29 2000/08/31 17:26:57 itojun 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.
- */
-
-#include <sys/cdefs.h>
-#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 <assert.h>
-#include <ctype.h>
-#include <errno.h>
-#include <netdb.h>
-#include "resolv_private.h"
-#include <stddef.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <syslog.h>
-#include <stdarg.h>
-#include "nsswitch.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 in_loopback[] = { 127, 0, 0, 1 };
-#ifdef INET6
-static const char in6_addrany[] = {
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-};
-static const char in6_loopback[] = {
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1
-};
-#endif
-
-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
-
-static const ns_src default_dns_files[] = {
-	{ NSSRC_FILES, 	NS_SUCCESS },
-	{ NSSRC_DNS, 	NS_SUCCESS },
-	{ 0, 0 }
-};
-
-#define MAXPACKET	(64*1024)
-
-typedef union {
-	HEADER hdr;
-	u_char buf[MAXPACKET];
-} querybuf;
-
-struct res_target {
-	struct res_target *next;
-	const char *name;	/* domain name */
-	int qclass, qtype;	/* class and type of query */
-	u_char *answer;		/* buffer to put answer */
-	int anslen;		/* size of answer buffer */
-	int n;			/* result length */
-};
-
-static int str2number(const char *);
-static int explore_fqdn(const struct addrinfo *, const char *,
-	const char *, struct addrinfo **);
-static int explore_null(const struct addrinfo *,
-	const char *, struct addrinfo **);
-static int explore_numeric(const struct addrinfo *, const char *,
-	const char *, struct addrinfo **, const char *);
-static int explore_numeric_scope(const struct addrinfo *, const char *,
-	const char *, struct addrinfo **);
-static int get_canonname(const struct addrinfo *,
-	struct addrinfo *, const char *);
-static struct addrinfo *get_ai(const struct addrinfo *,
-	const struct afd *, const char *);
-static int get_portmatch(const struct addrinfo *, const char *);
-static int get_port(const struct addrinfo *, const char *, int);
-static const struct afd *find_afd(int);
-#ifdef INET6
-static int ip6_str2scopeid(char *, struct sockaddr_in6 *, u_int32_t *);
-#endif
-
-static struct addrinfo *getanswer(const querybuf *, int, const char *, int,
-	const struct addrinfo *);
-static void aisort(struct addrinfo *s, res_state res);
-static int _dns_getaddrinfo(void *, void *, va_list);
-static void _sethtent(FILE **);
-static void _endhtent(FILE **);
-static struct addrinfo *_gethtent(FILE **, const char *,
-    const struct addrinfo *);
-static int _files_getaddrinfo(void *, void *, va_list);
-
-static int res_queryN(const char *, struct res_target *, res_state);
-static int res_searchN(const char *, struct res_target *, res_state);
-static int res_querydomainN(const char *, const char *,
-	struct res_target *, res_state);
-
-static const char * const ai_errlist[] = {
-	"Success",
-	"Address family for hostname not supported",	/* EAI_ADDRFAMILY */
-	"Temporary failure in name resolution",		/* EAI_AGAIN      */
-	"Invalid value for ai_flags",		       	/* EAI_BADFLAGS   */
-	"Non-recoverable failure in name resolution", 	/* EAI_FAIL       */
-	"ai_family not supported",			/* EAI_FAMILY     */
-	"Memory allocation failure", 			/* EAI_MEMORY     */
-	"No address associated with hostname", 		/* EAI_NODATA     */
-	"hostname nor servname provided, or not known",	/* EAI_NONAME     */
-	"servname not supported for ai_socktype",	/* EAI_SERVICE    */
-	"ai_socktype not supported", 			/* EAI_SOCKTYPE   */
-	"System error returned in errno", 		/* EAI_SYSTEM     */
-	"Invalid value for hints",			/* EAI_BADHINTS	  */
-	"Resolved protocol is unknown",			/* EAI_PROTOCOL   */
-	"Argument buffer overflow",			/* EAI_OVERFLOW   */
-	"Unknown error", 				/* EAI_MAX        */
-};
-
-/* 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; 						\
-	/*NOTREACHED*/ 						\
-} 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)))
-
-const char *
-gai_strerror(int ecode)
-{
-	if (ecode < 0 || ecode > EAI_MAX)
-		ecode = EAI_MAX;
-	return ai_errlist[ecode];
-}
-
-void
-freeaddrinfo(struct addrinfo *ai)
-{
-	struct addrinfo *next;
-
-	assert(ai != NULL);
-
-	do {
-		next = ai->ai_next;
-		if (ai->ai_canonname)
-			free(ai->ai_canonname);
-		/* no need to free(ai->ai_addr) */
-		free(ai);
-		ai = next;
-	} while (ai);
-}
-
-static int
-str2number(const char *p)
-{
-	char *ep;
-	unsigned long v;
-
-	assert(p != NULL);
-
-	if (*p == '\0')
-		return -1;
-	ep = NULL;
-	errno = 0;
-	v = strtoul(p, &ep, 10);
-	if (errno == 0 && ep && *ep == '\0' && v <= UINT_MAX)
-		return v;
-	else
-		return -1;
-}
-
-int
-getaddrinfo(const char *hostname, const char *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;
-
-	/* hostname is allowed to be NULL */
-	/* servname is allowed to be NULL */
-	/* hints is allowed to be NULL */
-	assert(res != NULL);
-
-	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->ai_next)
-			cur = cur->ai_next;
-	}
-
-	/*
-	 * XXX
-	 * If numeric 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 (hostname == NULL)
-		ERR(EAI_NODATA);
-	if (pai->ai_flags & AI_NUMERICHOST)
-		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(const struct addrinfo *pai, const char *hostname,
-    const char *servname, struct addrinfo **res)
-{
-	struct addrinfo *result;
-	struct addrinfo *cur;
-	int error = 0;
-	static const ns_dtab dtab[] = {
-		NS_FILES_CB(_files_getaddrinfo, NULL)
-		{ NSSRC_DNS, _dns_getaddrinfo, NULL },	/* force -DHESIOD */
-		NS_NIS_CB(_yp_getaddrinfo, NULL)
-		{ 0, 0, 0 }
-	};
-
-	assert(pai != NULL);
-	/* hostname may be NULL */
-	/* servname may be NULL */
-	assert(res != NULL);
-
-	result = NULL;
-
-	/*
-	 * if the servname does not match socktype/protocol, ignore it.
-	 */
-	if (get_portmatch(pai, servname) != 0)
-		return 0;
-
-	switch (nsdispatch(&result, dtab, NSDB_HOSTS, "getaddrinfo",
-			default_dns_files, hostname, pai)) {
-	case NS_TRYAGAIN:
-		error = EAI_AGAIN;
-		goto free;
-	case NS_UNAVAIL:
-		error = EAI_FAIL;
-		goto free;
-	case NS_NOTFOUND:
-		error = EAI_NODATA;
-		goto free;
-	case NS_SUCCESS:
-		error = 0;
-		for (cur = result; cur; cur = cur->ai_next) {
-			GET_PORT(cur, servname);
-			/* canonname should be filled already */
-		}
-		break;
-	}
-
-	*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(const struct addrinfo *pai, const char *servname,
-    struct addrinfo **res)
-{
-	int s;
-	const struct afd *afd;
-	struct addrinfo *cur;
-	struct addrinfo sentinel;
-	int error;
-
-	assert(pai != NULL);
-	/* servname may be NULL */
-	assert(res != NULL);
-
-	*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 (afd == NULL)
-		return 0;
-
-	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(const struct addrinfo *pai, const char *hostname,
-    const char *servname, struct addrinfo **res, const char *canonname)
-{
-	const struct afd *afd;
-	struct addrinfo *cur;
-	struct addrinfo sentinel;
-	int error;
-	char pton[PTON_MAX];
-
-	assert(pai != NULL);
-	/* hostname may be NULL */
-	/* servname may be NULL */
-	assert(res != NULL);
-
-	*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);
-	if (afd == NULL)
-		return 0;
-
-	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);
-				if ((pai->ai_flags & AI_CANONNAME)) {
-					/*
-					 * Set the numeric address itself as
-					 * the canonical name, based on a
-					 * clarification in rfc2553bis-03.
-					 */
-					GET_CANONNAME(cur->ai_next, canonname);
-				}
-				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);
-				if ((pai->ai_flags & AI_CANONNAME)) {
-					/*
-					 * Set the numeric address itself as
-					 * the canonical name, based on a
-					 * clarification in rfc2553bis-03.
-					 */
-					GET_CANONNAME(cur->ai_next, canonname);
-				}
-				while (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(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, hostname);
-#else
-	const struct afd *afd;
-	struct addrinfo *cur;
-	int error;
-	char *cp, *hostname2 = NULL, *scope, *addr;
-	struct sockaddr_in6 *sin6;
-
-	assert(pai != NULL);
-	/* hostname may be NULL */
-	/* servname may be NULL */
-	assert(res != NULL);
-
-	/*
-	 * 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 == NULL)
-		return 0;
-
-	if (!afd->a_scoped)
-		return explore_numeric(pai, hostname, servname, res, hostname);
-
-	cp = strchr(hostname, SCOPE_DELIMITER);
-	if (cp == NULL)
-		return explore_numeric(pai, hostname, servname, res, hostname);
-
-	/*
-	 * 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;
-
-	error = explore_numeric(pai, addr, servname, res, hostname);
-	if (error == 0) {
-		u_int32_t scopeid;
-
-		for (cur = *res; cur; cur = cur->ai_next) {
-			if (cur->ai_family != AF_INET6)
-				continue;
-			sin6 = (struct sockaddr_in6 *)(void *)cur->ai_addr;
-			if (ip6_str2scopeid(scope, sin6, &scopeid) == -1) {
-				free(hostname2);
-				return(EAI_NODATA); /* XXX: is return OK? */
-			}
-			sin6->sin6_scope_id = scopeid;
-		}
-	}
-
-	free(hostname2);
-
-	return error;
-#endif
-}
-
-static int
-get_canonname(const struct addrinfo *pai, struct addrinfo *ai, const char *str)
-{
-
-	assert(pai != NULL);
-	assert(ai != NULL);
-	assert(str != NULL);
-
-	if ((pai->ai_flags & AI_CANONNAME) != 0) {
-		ai->ai_canonname = strdup(str);
-		if (ai->ai_canonname == NULL)
-			return EAI_MEMORY;
-	}
-	return 0;
-}
-
-static struct addrinfo *
-get_ai(const struct addrinfo *pai, const struct afd *afd, const char *addr)
-{
-	char *p;
-	struct addrinfo *ai;
-
-	assert(pai != NULL);
-	assert(afd != NULL);
-	assert(addr != NULL);
-
-	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 *)(void *)(ai + 1);
-	memset(ai->ai_addr, 0, (size_t)afd->a_socklen);
-
-#ifdef HAVE_SA_LEN
-	ai->ai_addr->sa_len = afd->a_socklen;
-#endif
-
-	ai->ai_addrlen = afd->a_socklen;
-#if defined (__alpha__) || (defined(__i386__) && defined(_LP64)) || defined(__sparc64__)
-	ai->__ai_pad0 = 0;
-#endif
-	ai->ai_addr->sa_family = ai->ai_family = afd->a_af;
-	p = (char *)(void *)(ai->ai_addr);
-	memcpy(p + afd->a_off, addr, (size_t)afd->a_addrlen);
-	return ai;
-}
-
-static int
-get_portmatch(const struct addrinfo *ai, const char *servname)
-{
-
-	assert(ai != NULL);
-	/* servname may be NULL */
-
-	return get_port(ai, servname, 1);
-}
-
-static int
-get_port(const struct addrinfo *ai, const char *servname, int matchonly)
-{
-	const char *proto;
-	struct servent *sp;
-	int port;
-	int allownumeric;
-
-	assert(ai != NULL);
-	/* servname may be NULL */
-
-	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;
-	}
-
-	port = str2number(servname);
-	if (port >= 0) {
-		if (!allownumeric)
-			return EAI_SERVICE;
-		if (port < 0 || port > 65535)
-			return EAI_SERVICE;
-		port = htons(port);
-	} else {
-		if (ai->ai_flags & AI_NUMERICSERV)
-			return EAI_NONAME;
-
-		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 *)(void *)
-			    ai->ai_addr)->sin_port = port;
-			break;
-#ifdef INET6
-		case AF_INET6:
-			((struct sockaddr_in6 *)(void *)
-			    ai->ai_addr)->sin6_port = port;
-			break;
-#endif
-		}
-	}
-
-	return 0;
-}
-
-static const struct afd *
-find_afd(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 INET6
-/* convert a string to a scope identifier. XXX: IPv6 specific */
-static int
-ip6_str2scopeid(char *scope, struct sockaddr_in6 *sin6, u_int32_t *scopeid)
-{
-	u_long lscopeid;
-	struct in6_addr *a6;
-	char *ep;
-
-	assert(scope != NULL);
-	assert(sin6 != NULL);
-	assert(scopeid != NULL);
-
-	a6 = &sin6->sin6_addr;
-
-	/* empty scopeid portion is invalid */
-	if (*scope == '\0')
-		return -1;
-
-	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 0;
-	}
-
-	/* 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:
-	errno = 0;
-	lscopeid = strtoul(scope, &ep, 10);
-	*scopeid = (u_int32_t)(lscopeid & 0xffffffffUL);
-	if (errno == 0 && ep && *ep == '\0' && *scopeid == lscopeid)
-		return 0;
-	else
-		return -1;
-}
-#endif
-
-/* code duplicate with gethnamaddr.c */
-
-static const char AskedForGot[] =
-	"gethostby*.getanswer: asked for \"%s\", got \"%s\"";
-
-static struct addrinfo *
-getanswer(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, *ep;
-	int type, class, ancount, qdcount;
-	int haveanswer, had_error;
-	char tbuf[MAXDNAME];
-	int (*name_ok) (const char *);
-	char hostbuf[8*1024];
-
-	assert(answer != NULL);
-	assert(qname != NULL);
-	assert(pai != NULL);
-
-	memset(&sentinel, 0, sizeof(sentinel));
-	cur = &sentinel;
-
-	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;
-	ep = hostbuf + sizeof hostbuf;
-	cp = answer->buf + HFIXEDSZ;
-	if (qdcount != 1) {
-		h_errno = NO_RECOVERY;
-		return (NULL);
-	}
-	n = dn_expand(answer->buf, eom, cp, bp, ep - bp);
-	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;
-		/* 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, ep - bp);
-		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 > ep - bp || n >= MAXHOSTNAMELEN) {
-				had_error++;
-				continue;
-			}
-			strlcpy(bp, tbuf, (size_t)(ep - bp));
-			canonname = bp;
-			bp += 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 (type == T_AAAA) {
-				struct in6_addr in6;
-				memcpy(&in6, cp, IN6ADDRSZ);
-				if (IN6_IS_ADDR_V4MAPPED(&in6)) {
-					cp += n;
-					continue;
-				}
-			}
-			if (!haveanswer) {
-				int nn;
-
-				canonname = bp;
-				nn = strlen(bp) + 1;	/* for the \0 */
-				bp += 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, (const char *)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;
-}
-
-#define SORTEDADDR(p)	(((struct sockaddr_in *)(void *)(p->ai_next->ai_addr))->sin_addr.s_addr)
-#define SORTMATCH(p, s) ((SORTEDADDR(p) & (s).mask) == (s).addr.s_addr)
-
-static void
-aisort(struct addrinfo *s, res_state res)
-{
-	struct addrinfo head, *t, *p;
-	int i;
-
-	head.ai_next = NULL;
-	t = &head;
-
-	for (i = 0; i < res->nsort; i++) {
-		p = s;
-		while (p->ai_next) {
-			if ((p->ai_next->ai_family != AF_INET)
-			|| SORTMATCH(p, res->sort_list[i])) {
-				t->ai_next = p->ai_next;
-				t = t->ai_next;
-				p->ai_next = p->ai_next->ai_next;
-			} else {
-				p = p->ai_next;
-			}
-		}
-	}
-
-	/* add rest of list and reset s to the new list*/
-	t->ai_next = s->ai_next;
-	s->ai_next = head.ai_next;
-}
-
-/*ARGSUSED*/
-static int
-_dns_getaddrinfo(void *rv, void	*cb_data, va_list ap)
-{
-	struct addrinfo *ai;
-	querybuf *buf, *buf2;
-	const char *name;
-	const struct addrinfo *pai;
-	struct addrinfo sentinel, *cur;
-	struct res_target q, q2;
-	res_state res;
-
-	name = va_arg(ap, char *);
-	pai = va_arg(ap, const struct addrinfo *);
-
-	fprintf(stderr, "_dns_getaddrinfo() name = '%s'\n", name);
-
-	memset(&q, 0, sizeof(q));
-	memset(&q2, 0, sizeof(q2));
-	memset(&sentinel, 0, sizeof(sentinel));
-	cur = &sentinel;
-
-	buf = malloc(sizeof(*buf));
-	if (buf == NULL) {
-		h_errno = NETDB_INTERNAL;
-		return NS_NOTFOUND;
-	}
-	buf2 = malloc(sizeof(*buf2));
-	if (buf2 == NULL) {
-		free(buf);
-		h_errno = NETDB_INTERNAL;
-		return NS_NOTFOUND;
-	}
-
-	switch (pai->ai_family) {
-	case AF_UNSPEC:
-		/* prefer IPv6 */
-		q.name = name;
-		q.qclass = C_IN;
-		q.qtype = T_AAAA;
-		q.answer = buf->buf;
-		q.anslen = sizeof(buf->buf);
-		q.next = &q2;
-		q2.name = name;
-		q2.qclass = C_IN;
-		q2.qtype = T_A;
-		q2.answer = buf2->buf;
-		q2.anslen = sizeof(buf2->buf);
-		break;
-	case AF_INET:
-		q.name = name;
-		q.qclass = C_IN;
-		q.qtype = T_A;
-		q.answer = buf->buf;
-		q.anslen = sizeof(buf->buf);
-		break;
-	case AF_INET6:
-		q.name = name;
-		q.qclass = C_IN;
-		q.qtype = T_AAAA;
-		q.answer = buf->buf;
-		q.anslen = sizeof(buf->buf);
-		break;
-	default:
-		free(buf);
-		free(buf2);
-		return NS_UNAVAIL;
-	}
-
-	res = __res_get_state();
-	if (res == NULL) {
-		free(buf);
-		free(buf2);
-		return NS_NOTFOUND;
-	}
-
-	if (res_searchN(name, &q, res) < 0) {
-		__res_put_state(res);
-		free(buf);
-		free(buf2);
-		return NS_NOTFOUND;
-	}
-	ai = getanswer(buf, q.n, q.name, q.qtype, 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.qtype, pai);
-		if (ai)
-			cur->ai_next = ai;
-	}
-	free(buf);
-	free(buf2);
-	if (sentinel.ai_next == NULL) {
-		__res_put_state(res);
-		switch (h_errno) {
-		case HOST_NOT_FOUND:
-			return NS_NOTFOUND;
-		case TRY_AGAIN:
-			return NS_TRYAGAIN;
-		default:
-			return NS_UNAVAIL;
-		}
-	}
-
-	if (res->nsort)
-		aisort(&sentinel, res);
-
-	__res_put_state(res);
-
-	*((struct addrinfo **)rv) = sentinel.ai_next;
-	return NS_SUCCESS;
-}
-
-static void
-_sethtent(FILE **hostf)
-{
-
-	if (!*hostf)
-		*hostf = fopen(_PATH_HOSTS, "r" );
-	else
-		rewind(*hostf);
-}
-
-static void
-_endhtent(FILE **hostf)
-{
-
-	if (*hostf) {
-		(void) fclose(*hostf);
-		*hostf = NULL;
-	}
-}
-
-static struct addrinfo *
-_gethtent(FILE **hostf, const char *name, const struct addrinfo *pai)
-{
-	char *p;
-	char *cp, *tname, *cname;
-	struct addrinfo hints, *res0, *res;
-	int error;
-	const char *addr;
-	char hostbuf[8*1024];
-
-//	fprintf(stderr, "_gethtent() name = '%s'\n", name);
-	assert(name != NULL);
-	assert(pai != NULL);
-
-	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. */
-	cname = NULL;
-	while (cp && *cp) {
-		if (*cp == ' ' || *cp == '\t') {
-			cp++;
-			continue;
-		}
-		if (!cname)
-			cname = cp;
-		tname = cp;
-		if ((cp = strpbrk(cp, " \t")) != NULL)
-			*cp++ = '\0';
-//		fprintf(stderr, "\ttname = '%s'", tname);
-		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, cname) != 0) {
-				freeaddrinfo(res0);
-				goto again;
-			}
-		}
-	}
-	return res0;
-}
-
-/*ARGSUSED*/
-static int
-_files_getaddrinfo(void *rv, void *cb_data, va_list ap)
-{
-	const char *name;
-	const struct addrinfo *pai;
-	struct addrinfo sentinel, *cur;
-	struct addrinfo *p;
-	FILE *hostf = NULL;
-
-	name = va_arg(ap, char *);
-	pai = va_arg(ap, struct addrinfo *);
-
-//	fprintf(stderr, "_files_getaddrinfo() name = '%s'\n", name);
-	memset(&sentinel, 0, sizeof(sentinel));
-	cur = &sentinel;
-
-	_sethtent(&hostf);
-	while ((p = _gethtent(&hostf, name, pai)) != NULL) {
-		cur->ai_next = p;
-		while (cur && cur->ai_next)
-			cur = cur->ai_next;
-	}
-	_endhtent(&hostf);
-
-	*((struct addrinfo **)rv) = sentinel.ai_next;
-	if (sentinel.ai_next == NULL)
-		return NS_NOTFOUND;
-	return NS_SUCCESS;
-}
-
-/* resolver logic */
-
-/*
- * 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(const char *name, /* domain name */ struct res_target *target,
-    res_state res)
-{
-	u_char buf[MAXPACKET];
-	HEADER *hp;
-	int n;
-	struct res_target *t;
-	int rcode;
-	int ancount;
-
-	assert(name != NULL);
-	/* XXX: target may be NULL??? */
-
-	rcode = NOERROR;
-	ancount = 0;
-
-	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->qclass;
-		type = t->qtype;
-		answer = t->answer;
-		anslen = t->anslen;
-#ifdef DEBUG
-		if (res->options & RES_DEBUG)
-			printf(";; res_nquery(%s, %d, %d)\n", name, class, type);
-#endif
-
-		n = res_nmkquery(res, QUERY, name, class, type, NULL, 0, NULL,
-		    buf, sizeof(buf));
-#ifdef RES_USE_EDNS0
-		if (n > 0 && (res->options & RES_USE_EDNS0) != 0)
-			n = res_nopt(res, n, buf, sizeof(buf), anslen);
-#endif
-		if (n <= 0) {
-#ifdef DEBUG
-			if (res->options & RES_DEBUG)
-				printf(";; res_nquery: mkquery failed\n");
-#endif
-			h_errno = NO_RECOVERY;
-			return n;
-		}
-		n = res_nsend(res, buf, n, answer, anslen);
-#if 0
-		if (n < 0) {
-#ifdef DEBUG
-			if (res->options & RES_DEBUG)
-				printf(";; res_query: send error\n");
-#endif
-			h_errno = TRY_AGAIN;
-			return n;
-		}
-#endif
-
-		if (n < 0 || hp->rcode != NOERROR || ntohs(hp->ancount) == 0) {
-			rcode = hp->rcode;	/* record most recent error */
-#ifdef DEBUG
-			if (res->options & RES_DEBUG)
-				printf(";; rcode = %u, ancount=%u\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(const char *name, struct res_target *target, res_state res)
-{
-	const char *cp, * const *domain;
-	HEADER *hp;
-	u_int dots;
-	int trailing_dot, ret, saved_herrno;
-	int got_nodata = 0, got_servfail = 0, tried_as_is = 0;
-
-	assert(name != NULL);
-	assert(target != NULL);
-
-	hp = (HEADER *)(void *)target->answer;	/*XXX*/
-
-	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++;
-
-
-fprintf(stderr, "res_searchN() name = '%s'\n", name);
-
-	/*
-	 * if there aren't any dots, it could be a user-level alias
-	 */
-	if (!dots && (cp = __hostalias(name)) != NULL) {
-		ret = res_queryN(cp, target, res);
-		return ret;
-	}
-
-	/*
-	 * 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, res);
-		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, res);
-			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, res);
-		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(const char *name, const char *domain,
-    struct res_target *target, res_state res)
-{
-	char nbuf[MAXDNAME];
-	const char *longname = nbuf;
-	size_t n, d;
-
-	assert(name != NULL);
-	/* XXX: target may be NULL??? */
-
-#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 + 1 > sizeof(nbuf)) {
-			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 + 1 + d + 1 > sizeof(nbuf)) {
-			h_errno = NO_RECOVERY;
-			return -1;
-		}
-		snprintf(nbuf, sizeof(nbuf), "%s.%s", name, domain);
-	}
-	return res_queryN(longname, target, res);
-}
diff --git a/libc/netbsd/net/getnameinfo.c b/libc/netbsd/net/getnameinfo.c
deleted file mode 100644
index db04fbf..0000000
--- a/libc/netbsd/net/getnameinfo.c
+++ /dev/null
@@ -1,519 +0,0 @@
-/*	$NetBSD: getnameinfo.c,v 1.43 2006/02/17 15:58:26 ginsbach Exp $	*/
-/*	$KAME: getnameinfo.c,v 1.45 2000/09/25 22:43:56 itojun Exp $	*/
-
-/*
- * Copyright (c) 2000 Ben Harris.
- * 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
- * - 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).  ipngwg rough consensus seems to follow RFC2553.
- * - What is "local" in NI_FQDN?
- * - NI_NAMEREQD and NI_NUMERICHOST conflict with each other.
- * - (KAME extension) always attach textual scopeid (fe80::1%lo0), if
- *   sin6_scope_id is filled - standardization status?
- *   XXX breaks backward compat for code that expects no scopeid.
- *   beware on merge.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: getnameinfo.c,v 1.43 2006/02/17 15:58:26 ginsbach Exp $");
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <net/if.h>
-#include <net/if_dl.h>
-#include <net/if_ieee1394.h>
-#include <net/if_types.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include "arpa_nameser.h"
-#include <assert.h>
-#include <limits.h>
-#include <netdb.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-#include <stddef.h>
-#include <string.h>
-
-static const struct afd {
-	int		a_af;
-	socklen_t	a_addrlen;
-	socklen_t	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, 0},
-};
-
-struct sockinet {
-	u_char	si_len;
-	u_char	si_family;
-	u_short	si_port;
-};
-
-static int getnameinfo_inet __P((const struct sockaddr *, socklen_t, char *,
-    socklen_t, char *, socklen_t, int));
-#ifdef INET6
-static int ip6_parsenumeric __P((const struct sockaddr *, const char *, char *,
-				 socklen_t, int));
-static int ip6_sa2str __P((const struct sockaddr_in6 *, char *, size_t,
-				 int));
-#endif
-static int getnameinfo_link __P((const struct sockaddr *, socklen_t, char *,
-    socklen_t, char *, socklen_t, int));
-static int hexname __P((const u_int8_t *, size_t, char *, socklen_t));
-
-/*
- * Top-level getnameinfo() code.  Look at the address family, and pick an
- * appropriate function to call.
- */
-int getnameinfo(const struct sockaddr* sa, socklen_t salen, char* host, size_t hostlen, char* serv, size_t servlen, int flags)
-{
-	switch (sa->sa_family) {
-	case AF_INET:
-	case AF_INET6:
-		return getnameinfo_inet(sa, salen, host, hostlen,
-		    serv, servlen, flags);
-#if 0
-	case AF_LINK:
-		return getnameinfo_link(sa, salen, host, hostlen,
-		    serv, servlen, flags);
-#endif
-	default:
-		return EAI_FAMILY;
-	}
-}
-
-
-/*
- * getnameinfo_inet():
- * Format an IPv4 or IPv6 sockaddr into a printable string.
- */
-static int
-getnameinfo_inet(sa, salen, host, hostlen, serv, servlen, flags)
-	const struct sockaddr *sa;
-	socklen_t salen;
-	char *host;
-	socklen_t hostlen;
-	char *serv;
-	socklen_t servlen;
-	int flags;
-{
-	const struct afd *afd;
-	struct servent *sp;
-	struct hostent *hp;
-	u_short port;
-	int family, i;
-	const char *addr;
-	u_int32_t v4a;
-	char numserv[512];
-	char numaddr[512];
-
-	/* sa is checked below */
-	/* host may be NULL */
-	/* serv may be NULL */
-
-	if (sa == NULL)
-		return EAI_FAIL;
-
-#ifdef BSD4_4
-	if (sa->sa_len != salen)
-		return EAI_FAIL;
-#endif
-
-	family = sa->sa_family;
-	for (i = 0; afdl[i].a_af; i++)
-		if (afdl[i].a_af == family) {
-			afd = &afdl[i];
-			goto found;
-		}
-	return EAI_FAMILY;
-
- found:
-	if (salen != afd->a_socklen)
-		return EAI_FAIL;
-
-	/* network byte order */
-	port = ((const struct sockinet *)(const void *)sa)->si_port;
-	addr = (const char *)(const void *)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: rfc2553bis-03 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) + 1 > (size_t)servlen)
-				return EAI_MEMORY;
-			strlcpy(serv, sp->s_name, servlen);
-		} else {
-			snprintf(numserv, sizeof(numserv), "%u", ntohs(port));
-			if (strlen(numserv) + 1 > (size_t)servlen)
-				return EAI_MEMORY;
-			strlcpy(serv, numserv, servlen);
-		}
-	}
-
-	switch (sa->sa_family) {
-	case AF_INET:
-		v4a = (u_int32_t)
-		    ntohl(((const struct sockaddr_in *)
-		    (const void *)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:
-	    {
-		const struct sockaddr_in6 *sin6;
-		sin6 = (const struct sockaddr_in6 *)(const void *)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: rfc2553bis-03 says that host == NULL or
-		 * hostlen == 0 means that the caller does not want the result.
-		 */
-	} else if (flags & NI_NUMERICHOST) {
-		size_t numaddrlen;
-
-		/* NUMERICHOST and NAMEREQD conflicts with each other */
-		if (flags & NI_NAMEREQD)
-			return EAI_NONAME;
-
-		switch(afd->a_af) {
-#ifdef INET6
-		case AF_INET6:
-		{
-			int error;
-
-			if ((error = ip6_parsenumeric(sa, addr, host,
-						      hostlen, flags)) != 0)
-				return(error);
-			break;
-		}
-#endif
-		default:
-			if (inet_ntop(afd->a_af, addr, numaddr, sizeof(numaddr))
-			    == NULL)
-				return EAI_SYSTEM;
-			numaddrlen = strlen(numaddr);
-			if (numaddrlen + 1 > (size_t)hostlen) /* don't forget terminator */
-				return EAI_MEMORY;
-			strlcpy(host, numaddr, hostlen);
-			break;
-		}
-	} else {
-		hp = gethostbyaddr(addr, afd->a_addrlen, afd->a_af);
-
-		if (hp) {
-#if 0
-			/*
-			 * commented out, since "for local host" is not
-			 * implemented here - see RFC2553 p30
-			 */
-			if (flags & NI_NOFQDN) {
-				char *p;
-				p = strchr(hp->h_name, '.');
-				if (p)
-					*p = '\0';
-			}
-#endif
-			if (strlen(hp->h_name) + 1 > (size_t)hostlen) {
-				return EAI_MEMORY;
-			}
-			strlcpy(host, hp->h_name, hostlen);
-		} else {
-			if (flags & NI_NAMEREQD)
-				return EAI_NONAME;
-			switch(afd->a_af) {
-#ifdef INET6
-			case AF_INET6:
-			{
-				int error;
-
-				if ((error = ip6_parsenumeric(sa, addr, host,
-							      hostlen,
-							      flags)) != 0)
-					return(error);
-				break;
-			}
-#endif
-			default:
-				if (inet_ntop(afd->a_af, addr, host,
-				    hostlen) == NULL)
-					return EAI_SYSTEM;
-				break;
-			}
-		}
-	}
-	return(0);
-}
-
-#ifdef INET6
-static int
-ip6_parsenumeric(sa, addr, host, hostlen, flags)
-	const struct sockaddr *sa;
-	const char *addr;
-	char *host;
-	socklen_t hostlen;
-	int flags;
-{
-	size_t numaddrlen;
-	char numaddr[512];
-
-	assert(sa != NULL);
-	assert(addr != NULL);
-	assert(host != NULL);
-
-	if (inet_ntop(AF_INET6, addr, numaddr, sizeof(numaddr)) == NULL)
-		return EAI_SYSTEM;
-
-	numaddrlen = strlen(numaddr);
-	if (numaddrlen + 1 > hostlen) /* don't forget terminator */
-		return EAI_OVERFLOW;
-	strlcpy(host, numaddr, hostlen);
-
-	if (((const struct sockaddr_in6 *)(const void *)sa)->sin6_scope_id) {
-		char zonebuf[MAXHOSTNAMELEN];
-		int zonelen;
-
-		zonelen = ip6_sa2str(
-		    (const struct sockaddr_in6 *)(const void *)sa,
-		    zonebuf, sizeof(zonebuf), flags);
-		if (zonelen < 0)
-			return EAI_OVERFLOW;
-		if ((size_t) zonelen + 1 + numaddrlen + 1 > hostlen)
-			return EAI_OVERFLOW;
-		/* construct <numeric-addr><delim><zoneid> */
-		memcpy(host + numaddrlen + 1, zonebuf,
-		    (size_t)zonelen);
-		host[numaddrlen] = SCOPE_DELIMITER;
-		host[numaddrlen + 1 + zonelen] = '\0';
-	}
-
-	return 0;
-}
-
-/* ARGSUSED */
-static int
-ip6_sa2str(sa6, buf, bufsiz, flags)
-	const struct sockaddr_in6 *sa6;
-	char *buf;
-	size_t bufsiz;
-	int flags;
-{
-	unsigned int ifindex;
-	const struct in6_addr *a6;
-	int n;
-
-	assert(sa6 != NULL);
-	assert(buf != NULL);
-
-	ifindex = (unsigned int)sa6->sin6_scope_id;
-	a6 = &sa6->sin6_addr;
-
-#ifdef NI_NUMERICSCOPE
-	if ((flags & NI_NUMERICSCOPE) != 0) {
-		n = snprintf(buf, bufsiz, "%u", sa6->sin6_scope_id);
-		if (n < 0 || n >= bufsiz)
-			return -1;
-		else
-			return n;
-	}
-#endif
-
-	/* if_indextoname() does not take buffer size.  not a good api... */
-	if ((IN6_IS_ADDR_LINKLOCAL(a6) || IN6_IS_ADDR_MC_LINKLOCAL(a6)) &&
-	    bufsiz >= IF_NAMESIZE) {
-		char *p = if_indextoname(ifindex, buf);
-		if (p) {
-			return(strlen(p));
-		}
-	}
-
-	/* last resort */
-	n = snprintf(buf, bufsiz, "%u", sa6->sin6_scope_id);
-	if (n < 0 || (size_t) n >= bufsiz)
-		return -1;
-	else
-		return n;
-}
-#endif /* INET6 */
-
-
-/*
- * getnameinfo_link():
- * Format a link-layer address into a printable format, paying attention to
- * the interface type.
- */
-/* ARGSUSED */
-static int
-getnameinfo_link(const struct sockaddr *sa, socklen_t salen,
-    char *host, socklen_t hostlen, char *serv, socklen_t servlen,
-    int flags)
-{
-	const struct sockaddr_dl *sdl =
-	    (const struct sockaddr_dl *)(const void *)sa;
-	const struct ieee1394_hwaddr *iha;
-	int n;
-
-	if (serv != NULL && servlen > 0)
-		*serv = '\0';
-
-	if (sdl->sdl_nlen == 0 && sdl->sdl_alen == 0 && sdl->sdl_slen == 0) {
-		n = snprintf(host, hostlen, "link#%u", sdl->sdl_index);
-		if (n < 0 || (socklen_t) n > hostlen) {
-			*host = '\0';
-			return EAI_MEMORY;
-		}
-		return 0;
-	}
-
-	switch (sdl->sdl_type) {
-#ifdef IFT_ECONET
-	case IFT_ECONET:
-		if (sdl->sdl_alen < 2)
-			return EAI_FAMILY;
-		if (CLLADDR(sdl)[1] == 0)
-			n = snprintf(host, hostlen, "%u", CLLADDR(sdl)[0]);
-		else
-			n = snprintf(host, hostlen, "%u.%u",
-			    CLLADDR(sdl)[1], CLLADDR(sdl)[0]);
-		if (n < 0 || (socklen_t) n >= hostlen) {
-			*host = '\0';
-			return EAI_MEMORY;
-		} else
-			return 0;
-#endif
-	case IFT_IEEE1394:
-		if (sdl->sdl_alen < sizeof(iha->iha_uid))
-			return EAI_FAMILY;
-		iha =
-		    (const struct ieee1394_hwaddr *)(const void *)CLLADDR(sdl);
-		return hexname(iha->iha_uid, sizeof(iha->iha_uid),
-		    host, hostlen);
-	/*
-	 * The following have zero-length addresses.
-	 * IFT_ATM	(net/if_atmsubr.c)
-	 * IFT_FAITH	(net/if_faith.c)
-	 * IFT_GIF	(net/if_gif.c)
-	 * IFT_LOOP	(net/if_loop.c)
-	 * IFT_PPP	(net/if_ppp.c, net/if_spppsubr.c)
-	 * IFT_SLIP	(net/if_sl.c, net/if_strip.c)
-	 * IFT_STF	(net/if_stf.c)
-	 * IFT_L2VLAN	(net/if_vlan.c)
-	 * IFT_PROPVIRTUAL (net/if_bridge.h>
-	 */
-	/*
-	 * The following use IPv4 addresses as link-layer addresses:
-	 * IFT_OTHER	(net/if_gre.c)
-	 */
-	case IFT_ARCNET: /* default below is believed correct for all these. */
-	case IFT_ETHER:
-	case IFT_FDDI:
-	case IFT_HIPPI:
-	case IFT_ISO88025:
-	default:
-		return hexname((const u_int8_t *)CLLADDR(sdl),
-		    (size_t)sdl->sdl_alen, host, hostlen);
-	}
-}
-
-static int
-hexname(cp, len, host, hostlen)
-	const u_int8_t *cp;
-	char *host;
-	size_t len;
-	socklen_t hostlen;
-{
-	int n;
-	size_t i;
-	char *outp = host;
-
-	*outp = '\0';
-	for (i = 0; i < len; i++) {
-		n = snprintf(outp, hostlen, "%s%02x",
-		    i ? ":" : "", cp[i]);
-		if (n < 0 || (socklen_t) n >= hostlen) {
-			*host = '\0';
-			return EAI_MEMORY;
-		}
-		outp += n;
-		hostlen -= n;
-	}
-	return 0;
-}
diff --git a/libc/netbsd/net/getservbyname.c b/libc/netbsd/net/getservbyname.c
deleted file mode 100644
index 5ea528e..0000000
--- a/libc/netbsd/net/getservbyname.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source 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:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
- * COPYRIGHT OWNER 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 <sys/cdefs.h>
-#include <sys/types.h>
-#include <netdb.h>
-#include "servent.h"
-
-struct servent *
-getservbyname(const char *name, const char *proto)
-{
-    res_static       rs = __res_get_static();
-    struct servent*  s;
-
-    if (rs == NULL || proto == NULL || name == NULL) {
-        errno = EINVAL;
-        return NULL;
-    }
-
-    rs->servent_ptr = NULL;
-    while (1) {
-        struct servent*  s = getservent_r(rs);
-        if (s == NULL)
-            break;
-        if ( !strcmp( s->s_name, name ) && !strcmp( s->s_proto, proto ) )
-            return s;
-    }
-
-    return NULL;
-}
diff --git a/libc/netbsd/net/getservbyname_r.c b/libc/netbsd/net/getservbyname_r.c
deleted file mode 100644
index fb6dc52..0000000
--- a/libc/netbsd/net/getservbyname_r.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*	$NetBSD: getservbyname_r.c,v 1.3 2005/04/18 19:39:45 kleink Exp $	*/
-
-/*
- * Copyright (c) 1983, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-#include <sys/types.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-#if 0
-static char sccsid[] = "@(#)getservbyname.c	8.1 (Berkeley) 6/4/93";
-#else
-__RCSID("$NetBSD: getservbyname_r.c,v 1.3 2005/04/18 19:39:45 kleink Exp $");
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-#include <assert.h>
-#include <netdb.h>
-#include <string.h>
-
-#include "servent.h"
-
-struct servent *
-getservbyname_r(const char *name, const char *proto, struct servent *sp,
-    struct servent_data *sd)
-{
-	struct servent *s;
-	char **cp;
-
-	assert(name != NULL);
-	/* proto may be NULL */
-
-	setservent_r(sd->stayopen, sd);
-	while ((s = getservent_r(sp, sd)) != NULL) {
-		if (strcmp(name, s->s_name) == 0)
-			goto gotname;
-		for (cp = s->s_aliases; *cp; cp++)
-			if (strcmp(name, *cp) == 0)
-				goto gotname;
-		continue;
-gotname:
-		if (proto == NULL || strcmp(s->s_proto, proto) == 0)
-			break;
-	}
-	if (!sd->stayopen)
-		if (sd->fp != NULL) {
-			(void)fclose(sd->fp);
-			sd->fp = NULL;
-		}
-	return s;
-}
diff --git a/libc/netbsd/net/getservbyport.c b/libc/netbsd/net/getservbyport.c
deleted file mode 100644
index fad7e23..0000000
--- a/libc/netbsd/net/getservbyport.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source 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:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
- * COPYRIGHT OWNER 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 <sys/cdefs.h>
-#include <netdb.h>
-#include "servent.h"
-
-struct servent *
-getservbyport(int port, const char *proto)
-{
-    res_static       rs = __res_get_static();
-    struct servent*  s;
-
-    if (rs == NULL || proto == NULL) {
-        errno = EINVAL;
-        return NULL;
-    }
-
-    rs->servent_ptr = NULL;
-    while (1) {
-        struct servent*  s = getservent_r(rs);
-        if (s == NULL)
-            break;
-        if ( s->s_port == port && !strcmp( s->s_proto, proto ) )
-            return s;
-    }
-
-    return NULL;
-}
diff --git a/libc/netbsd/net/getservbyport_r.c b/libc/netbsd/net/getservbyport_r.c
deleted file mode 100644
index 6fe4293..0000000
--- a/libc/netbsd/net/getservbyport_r.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/*	$NetBSD: getservbyport_r.c,v 1.3 2005/04/18 19:39:45 kleink Exp $	*/
-
-/*
- * Copyright (c) 1983, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-#if 0
-static char sccsid[] = "@(#)getservbyport.c	8.1 (Berkeley) 6/4/93";
-#else
-__RCSID("$NetBSD: getservbyport_r.c,v 1.3 2005/04/18 19:39:45 kleink Exp $");
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-#include <netdb.h>
-#include <string.h>
-
-#include "servent.h"
-
-struct servent *
-getservbyport_r(int port, const char *proto, struct servent *sp,
-    struct servent_data *sd)
-{
-	struct servent *s;
-
-	setservent_r(sd->stayopen, sd);
-	while ((s = getservent_r(sp, sd)) != NULL) {
-		if (s->s_port != port)
-			continue;
-		if (proto == NULL || strcmp(s->s_proto, proto) == 0)
-			break;
-	}
-	if (!sd->stayopen)
-		if (sd->fp != NULL) {
-			(void)fclose(sd->fp);
-			sd->fp = NULL;
-		}
-	return s;
-}
diff --git a/libc/netbsd/net/getservent.c b/libc/netbsd/net/getservent.c
deleted file mode 100644
index 45207df..0000000
--- a/libc/netbsd/net/getservent.c
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source 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:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
- * COPYRIGHT OWNER 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 <sys/cdefs.h>
-#include <sys/types.h>
-#include <netdb.h>
-#include "servent.h"
-#include "services.h"
-
-void
-setservent(int f)
-{
-    res_static  rs = __res_get_static();
-    if (rs) {
-        rs->servent_ptr = NULL;
-    }
-}
-
-void
-endservent(void)
-{
-    /* nothing to do */
-}
-
-struct servent *
-getservent_r( res_static  rs )
-{
-    const char*  p;
-    const char*  q;
-    int          namelen;
-    int          nn,count;
-    int          total = 0;
-    char*        p2;
-
-    p = rs->servent_ptr;
-    if (p == NULL)
-        p = _services;
-    else if (p[0] == 0)
-        return NULL;
-
-    /* first compute the total size */
-    namelen = p[0];
-    total  += namelen + 1;
-    q       = p + 1 + namelen + 3;  /* skip name + port + proto */
-    count   = q[0];   /* get aliascount */
-    q      += 1;
-
-    total += (count+1)*sizeof(char*);
-    for (nn = 0; nn < count; nn++) {
-        int  len2 = q[0];
-        total += 1 + len2;
-        q     += 1 + len2;
-    }
-
-    /* reallocate the thread-specific servent struct */
-    p2 = realloc( (char*)rs->servent.s_aliases, total );
-    if (p2 == NULL)
-        return NULL;
-
-    /* now write to it */
-    rs->servent.s_aliases = (char**) p2;
-    p2                   += (count+1)*sizeof(char*);
-    rs->servent.s_name    = p2;
-    p2                   += namelen + 1;
-    rs->servent.s_proto   = p2;
-
-    /* copy name + port + setup protocol */
-    memcpy( rs->servent.s_name, p+1, namelen );
-    rs->servent.s_name[namelen] = 0;
-    p += 1 + namelen;
-    rs->servent.s_port = ((((unsigned char*)p)[0] << 8) |
-                           ((unsigned char*)p)[1]);
-
-    rs->servent.s_proto = p[2] == 't' ? "tcp" : "udp";
-    p += 4;  /* skip port(2) + proto(1) + aliascount(1) */
-
-    for (nn = 0; nn < count; nn++) {
-        int  len2 = p[0];
-        rs->servent.s_aliases[nn] = p2;
-        memcpy( p2, p+1, len2 );
-        p2[len2] = 0;
-        p2 += len2 + 1;
-        p  += len2 + 1;
-    }
-    rs->servent.s_aliases[nn] = NULL;
-
-    rs->servent_ptr = p;
-
-    return &rs->servent;
-}
-
-struct servent *
-getservent(void)
-{
-    res_static   rs = __res_get_static();
-
-    if (rs == NULL) return NULL;
-
-    return getservent_r(rs);
-}
diff --git a/libc/netbsd/net/getservent_r.c b/libc/netbsd/net/getservent_r.c
deleted file mode 100644
index 1668759..0000000
--- a/libc/netbsd/net/getservent_r.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*	$NetBSD: getservent_r.c,v 1.5 2005/04/18 19:39:45 kleink Exp $	*/
-
-/*
- * Copyright (c) 1983, 1993
- *	The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-#include <sys/types.h>
-
-#if defined(LIBC_SCCS) && !defined(lint)
-#if 0
-static char sccsid[] = "@(#)getservent.c	8.1 (Berkeley) 6/4/93";
-#else
-__RCSID("$NetBSD: getservent_r.c,v 1.5 2005/04/18 19:39:45 kleink Exp $");
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-#include <netdb.h>
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <netinet/in.h>
-
-#include "servent.h"
-
-void
-setservent_r(int f, struct servent_data *sd)
-{
-	if (sd->fp == NULL)
-		sd->fp = fopen(_PATH_SERVICES, "r");
-	else
-		rewind(sd->fp);
-	sd->stayopen |= f;
-}
-
-void
-endservent_r(struct servent_data *sd)
-{
-	if (sd->fp) {
-		(void)fclose(sd->fp);
-		sd->fp = NULL;
-	}
-	if (sd->aliases) {
-		free(sd->aliases);
-		sd->aliases = NULL;
-		sd->maxaliases = 0;
-	}
-	if (sd->line) {
-		free(sd->line);
-		sd->line = NULL;
-	}
-	sd->stayopen = 0;
-}
-
-struct servent *
-getservent_r(struct servent *sp, struct servent_data *sd)
-{
-	char *p, *cp, **q;
-	size_t i = 0;
-	int oerrno;
-
-	if (sd->fp == NULL && (sd->fp = fopen(_PATH_SERVICES, "r")) == NULL)
-		return NULL;
-
-	for (;;) {
-		if (sd->line)
-			free(sd->line);
-//		sd->line = fparseln(sd->fp, NULL, NULL, NULL, FPARSELN_UNESCALL);
-		fprintf(stderr, "*** FIX ME! getservent_r() is going to fail!!!\n");
-		sd->line = NULL;
-		if (sd->line == NULL)
-			return NULL;
-		sp->s_name = p = sd->line;
-		p = strpbrk(p, " \t");
-		if (p == NULL)
-			continue;
-		*p++ = '\0';
-		while (*p == ' ' || *p == '\t')
-			p++;
-		cp = strpbrk(p, ",/");
-		if (cp == NULL)
-			continue;
-		*cp++ = '\0';
-		sp->s_port = htons((u_short)atoi(p));
-		sp->s_proto = cp;
-		if (sd->aliases == NULL) {
-			sd->maxaliases = 10;
-			sd->aliases = malloc(sd->maxaliases * sizeof(char *));
-			if (sd->aliases == NULL) {
-				oerrno = errno;
-				endservent_r(sd);
-				errno = oerrno;
-				return NULL;
-			}
-		}
-		q = sp->s_aliases = sd->aliases;
-		cp = strpbrk(cp, " \t");
-		if (cp != NULL)
-			*cp++ = '\0';
-		while (cp && *cp) {
-			if (*cp == ' ' || *cp == '\t') {
-				cp++;
-				continue;
-			}
-			if (i == sd->maxaliases - 2) {
-				sd->maxaliases *= 2;
-				q = realloc(q,
-				    sd->maxaliases * sizeof(char *));
-				if (q == NULL) {
-					oerrno = errno;
-					endservent_r(sd);
-					errno = oerrno;
-					return NULL;
-				}
-				sp->s_aliases = sd->aliases = q;
-			}
-			q[i++] = cp;
-			cp = strpbrk(cp, " \t");
-			if (cp != NULL)
-				*cp++ = '\0';
-		}
-		q[i] = NULL;
-		return sp;
-	}
-}
diff --git a/libc/netbsd/net/nsdispatch.c b/libc/netbsd/net/nsdispatch.c
deleted file mode 100644
index fa99366..0000000
--- a/libc/netbsd/net/nsdispatch.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*	$NetBSD: nsdispatch.c,v 1.30 2005/11/29 03:11:59 christos Exp $	*/
-
-/*-
- * Copyright (c) 1997, 1998, 1999, 2004 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Luke Mewburn; and by Jason R. Thorpe.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *        This product includes software developed by the NetBSD
- *        Foundation, Inc. and its contributors.
- * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
- */
-
-/*-
- * Copyright (c) 2003 Networks Associates Technology, Inc.
- * All rights reserved.
- *
- * Portions of this software were developed for the FreeBSD Project by
- * Jacques A. Vidrine, Safeport Network Services, and Network
- * Associates Laboratories, the Security Research Division of Network
- * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
- * ("CBOSS"), as part of the DARPA CHATS research program.
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <sys/cdefs.h>
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/stat.h>
-
-#include <assert.h>
-#ifdef __ELF__
-#include <dlfcn.h>
-#endif /* __ELF__ */
-#include <fcntl.h>
-#define _NS_PRIVATE
-#include <nsswitch.h>
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-static nss_method
-_nsmethod(const char *source, const char *database, const char *method,
-    const ns_dtab disp_tab[], void **cb_data)
-{
-	int	curdisp;
-
-	if (disp_tab != NULL) {
-		for (curdisp = 0; disp_tab[curdisp].src != NULL; curdisp++) {
-			if (strcasecmp(source, disp_tab[curdisp].src) == 0) {
-				*cb_data = disp_tab[curdisp].cb_data;
-				return (disp_tab[curdisp].callback);
-			}
-		}
-	}
-
-	*cb_data = NULL;
-	return (NULL);
-}
-
-int
-/*ARGSUSED*/
-nsdispatch(void *retval, const ns_dtab disp_tab[], const char *database,
-	    const char *method, const ns_src defaults[], ...)
-{
-	va_list		 ap;
-	int		 i, result;
-	const ns_src	*srclist;
-	int		 srclistsize;
-	nss_method	 cb;
-	void		*cb_data;
-
-	/* retval may be NULL */
-	/* disp_tab may be NULL */
-	assert(database != NULL);
-	assert(method != NULL);
-	assert(defaults != NULL);
-	if (database == NULL || method == NULL || defaults == NULL)
-		return (NS_UNAVAIL);
-
-        srclist = defaults;
-        srclistsize = 0;
-        while (srclist[srclistsize].name != NULL)
-                srclistsize++;
-
-	result = 0;
-
-	for (i = 0; i < srclistsize; i++) {
-		cb = _nsmethod(srclist[i].name, database, method,
-		    disp_tab, &cb_data);
-		result = 0;
-		if (cb != NULL) {
-			va_start(ap, defaults);
-			result = (*cb)(retval, cb_data, ap);
-			va_end(ap);
-			if (defaults[0].flags & NS_FORCEALL)
-				continue;
-			if (result & srclist[i].flags)
-				break;
-		}
-	}
-	result &= NS_STATUSMASK;	/* clear private flags in result */
-
-	return (result ? result : NS_NOTFOUND);
-}
diff --git a/libc/netbsd/net/reentrant.h b/libc/netbsd/net/reentrant.h
deleted file mode 100644
index 15507eb..0000000
--- a/libc/netbsd/net/reentrant.h
+++ /dev/null
@@ -1,268 +0,0 @@
-/*	$NetBSD: reentrant.h,v 1.10 2004/12/14 00:23:19 nathanw Exp $	*/
-
-/*-
- * Copyright (c) 1997, 1998, 2003 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by J.T. Conklin, by Nathan J. Williams, and by Jason R. Thorpe.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *        This product includes software developed by the NetBSD
- *        Foundation, Inc. and its contributors.
- * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
- */
-
-/*
- * Requirements:
- * 
- * 1. The thread safe mechanism should be lightweight so the library can
- *    be used by non-threaded applications without unreasonable overhead.
- * 
- * 2. There should be no dependency on a thread engine for non-threaded
- *    applications.
- * 
- * 3. There should be no dependency on any particular thread engine.
- * 
- * 4. The library should be able to be compiled without support for thread
- *    safety.
- * 
- * 
- * Rationale:
- * 
- * One approach for thread safety is to provide discrete versions of the
- * library: one thread safe, the other not.  The disadvantage of this is
- * that libc is rather large, and two copies of a library which are 99%+
- * identical is not an efficent use of resources.
- * 
- * Another approach is to provide a single thread safe library.  However,
- * it should not add significant run time or code size overhead to non-
- * threaded applications.
- * 
- * Since the NetBSD C library is used in other projects, it should be
- * easy to replace the mutual exclusion primitives with ones provided by
- * another system.  Similarly, it should also be easy to remove all
- * support for thread safety completely if the target environment does
- * not support threads.
- * 
- * 
- * Implementation Details:
- * 
- * The thread primitives used by the library (mutex_t, mutex_lock, etc.)
- * are macros which expand to the cooresponding primitives provided by
- * the thread engine or to nothing.  The latter is used so that code is
- * not unreasonably cluttered with #ifdefs when all thread safe support
- * is removed.
- * 
- * The thread macros can be directly mapped to the mutex primitives from
- * pthreads, however it should be reasonably easy to wrap another mutex
- * implementation so it presents a similar interface.
- * 
- * The thread functions operate by dispatching to symbols which are, by
- * default, weak-aliased to no-op functions in thread-stub/thread-stub.c
- * (some uses of thread operations are conditional on __isthreaded, but
- * not all of them are).
- *
- * When the thread library is linked in, it provides strong-alias versions
- * of those symbols which dispatch to its own real thread operations.
- *
- */
-
-#ifdef _REENTRANT
-
-/*
- * Abtract thread interface for thread-safe libraries.  These routines
- * will use stubs in libc if the application is not linked against the
- * pthread library, and the real function in the pthread library if it
- * is.
- */
-
-#include <pthread.h>
-#include <signal.h>
-
-#define	mutex_t			pthread_mutex_t
-#define	MUTEX_INITIALIZER	PTHREAD_MUTEX_INITIALIZER
-
-#define	mutexattr_t		pthread_mutexattr_t
-
-#define	MUTEX_TYPE_NORMAL	PTHREAD_MUTEX_NORMAL
-#define	MUTEX_TYPE_ERRORCHECK	PTHREAD_MUTEX_ERRORCHECK
-#define	MUTEX_TYPE_RECURSIVE	PTHREAD_MUTEX_RECURSIVE
-
-#define	cond_t			pthread_cond_t
-#define	COND_INITIALIZER	PTHREAD_COND_INITIALIZER
-
-#define	condattr_t		pthread_condattr_t
-
-#define	rwlock_t		pthread_rwlock_t
-#define	RWLOCK_INITIALIZER	PTHREAD_RWLOCK_INITIALIZER
-
-#define	rwlockattr_t		pthread_rwlockattr_t
-
-#define	thread_key_t		pthread_key_t
-
-#define	thr_t			pthread_t
-
-#define	thrattr_t		pthread_attr_t
-
-#define	once_t			pthread_once_t
-#define	ONCE_INITIALIZER	PTHREAD_ONCE_INIT
-
-#ifndef __LIBC_THREAD_STUBS
-
-__BEGIN_DECLS
-int	__libc_mutex_init(mutex_t *, const mutexattr_t *);
-int	__libc_mutex_lock(mutex_t *);
-int	__libc_mutex_trylock(mutex_t *);
-int	__libc_mutex_unlock(mutex_t *);
-int	__libc_mutex_destroy(mutex_t *);
-
-int	__libc_mutexattr_init(mutexattr_t *);
-int	__libc_mutexattr_settype(mutexattr_t *, int);
-int	__libc_mutexattr_destroy(mutexattr_t *);
-__END_DECLS
-
-#define	mutex_init(m, a)	__libc_mutex_init((m), (a))
-#define	mutex_lock(m)		__libc_mutex_lock((m))
-#define	mutex_trylock(m)	__libc_mutex_trylock((m))
-#define	mutex_unlock(m)		__libc_mutex_unlock((m))
-#define	mutex_destroy(m)	__libc_mutex_destroy((m))
-
-#define	mutexattr_init(ma)	__libc_mutexattr_init((ma))
-#define	mutexattr_settype(ma, t) __libc_mutexattr_settype((ma), (t))
-#define	mutexattr_destroy(ma)	__libc_mutexattr_destroy((ma))
-
-__BEGIN_DECLS
-int	__libc_cond_init(cond_t *, const condattr_t *);
-int	__libc_cond_signal(cond_t *);
-int	__libc_cond_broadcast(cond_t *);
-int	__libc_cond_wait(cond_t *, mutex_t *);
-int	__libc_cond_timedwait(cond_t *, mutex_t *, const struct timespec *);
-int	__libc_cond_destroy(cond_t *);
-__END_DECLS
-
-#define	cond_init(c, t, a)     	__libc_cond_init((c), (a))
-#define	cond_signal(c)		__libc_cond_signal((c))
-#define	cond_broadcast(c)	__libc_cond_broadcast((c))
-#define	cond_wait(c, m)		__libc_cond_wait((c), (m))
-#define	cond_timedwait(c, m, t)	__libc_cond_timedwait((c), (m), (t))
-#define	cond_destroy(c)		__libc_cond_destroy((c))
-
-__BEGIN_DECLS
-int	__libc_rwlock_init(rwlock_t *, const rwlockattr_t *);
-int	__libc_rwlock_rdlock(rwlock_t *);
-int	__libc_rwlock_wrlock(rwlock_t *);
-int	__libc_rwlock_tryrdlock(rwlock_t *);
-int	__libc_rwlock_trywrlock(rwlock_t *);
-int	__libc_rwlock_unlock(rwlock_t *);
-int	__libc_rwlock_destroy(rwlock_t *);
-__END_DECLS
-
-#define	rwlock_init(l, a)	__libc_rwlock_init((l), (a))
-#define	rwlock_rdlock(l)	__libc_rwlock_rdlock((l))
-#define	rwlock_wrlock(l)	__libc_rwlock_wrlock((l))
-#define	rwlock_tryrdlock(l)	__libc_rwlock_tryrdlock((l))
-#define	rwlock_trywrlock(l)	__libc_rwlock_trywrlock((l))
-#define	rwlock_unlock(l)	__libc_rwlock_unlock((l))
-#define	rwlock_destroy(l)	__libc_rwlock_destroy((l))
-
-__BEGIN_DECLS
-int	__libc_thr_keycreate(thread_key_t *, void (*)(void *));
-int	__libc_thr_setspecific(thread_key_t, const void *);
-void	*__libc_thr_getspecific(thread_key_t);
-int	__libc_thr_keydelete(thread_key_t);
-__END_DECLS
-
-#define	thr_keycreate(k, d)	__libc_thr_keycreate((k), (d))
-#define	thr_setspecific(k, p)	__libc_thr_setspecific((k), (p))
-#define	thr_getspecific(k)	__libc_thr_getspecific((k))
-#define	thr_keydelete(k)	__libc_thr_keydelete((k))
-
-__BEGIN_DECLS
-int	__libc_thr_once(once_t *, void (*)(void));
-int	__libc_thr_sigsetmask(int, const sigset_t *, sigset_t *);
-thr_t	__libc_thr_self(void);
-int	__libc_thr_yield(void);
-void	__libc_thr_create(thr_t *, const thrattr_t *,
-	    void *(*)(void *), void *);
-void	__libc_thr_exit(void *) __attribute__((__noreturn__));
-int	*__libc_thr_errno(void);
-int	__libc_thr_setcancelstate(int, int *);
-
-extern int __isthreaded;
-__END_DECLS
-
-#define	thr_once(o, f)		__libc_thr_once((o), (f))
-#define	thr_sigsetmask(f, n, o)	__libc_thr_sigsetmask((f), (n), (o))
-#define	thr_self()		__libc_thr_self()
-#define	thr_yield()		__libc_thr_yield()
-#define	thr_create(tp, ta, f, a) __libc_thr_create((tp), (ta), (f), (a))
-#define	thr_exit(v)		__libc_thr_exit((v))
-#define	thr_errno()		__libc_thr_errno()
-#define	thr_enabled()		(__isthreaded)
-#define thr_setcancelstate(n, o) __libc_thr_setcancelstate((n),(o))
-#endif /* __LIBC_THREAD_STUBS */
-
-#define	FLOCKFILE(fp)		__flockfile_internal(fp, 1)
-#define	FUNLOCKFILE(fp)		__funlockfile_internal(fp, 1)
-
-#else /* _REENTRANT */
-
-#define	mutex_init(m, a)
-#define	mutex_lock(m)
-#define	mutex_trylock(m)
-#define	mutex_unlock(m)
-#define	mutex_destroy(m)
-
-#define	cond_init(c, t, a)
-#define	cond_signal(c)
-#define	cond_broadcast(c)
-#define	cond_wait(c, m)
-#define	cond_timedwait(c, m, t)
-#define	cond_destroy(c)
-
-#define	rwlock_init(l, a)
-#define	rwlock_rdlock(l)
-#define	rwlock_wrlock(l)
-#define	rwlock_tryrdlock(l)
-#define	rwlock_trywrlock(l)
-#define	rwlock_unlock(l)
-#define	rwlock_destroy(l)
-
-#define	thr_keycreate(k, d)
-#define	thr_setspecific(k, p)
-#define	thr_getspecific(k)
-#define	thr_keydelete(k)
-
-#define	thr_once(o, f)
-#define	thr_sigsetmask(f, n, o)
-#define	thr_self()
-#define	thr_errno()
-
-#define	FLOCKFILE(fp)		
-#define	FUNLOCKFILE(fp)		
-
-#endif /* _REENTRANT */
diff --git a/libc/netbsd/net/servent.h b/libc/netbsd/net/servent.h
deleted file mode 100644
index 822b375..0000000
--- a/libc/netbsd/net/servent.h
+++ /dev/null
@@ -1,44 +0,0 @@
-/*	$NetBSD: servent.h,v 1.1 2005/04/18 19:39:45 kleink Exp $	*/
-
-/*-
- * Copyright (c) 2004 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Christos Zoulas.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *        This product includes software developed by the NetBSD
- *        Foundation, Inc. and its contributors.
- * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include "resolv_static.h"
-
-struct servent*  getservent_r(res_static rs);
diff --git a/libc/netbsd/net/services.h b/libc/netbsd/net/services.h
deleted file mode 100644
index fa199d0..0000000
--- a/libc/netbsd/net/services.h
+++ /dev/null
@@ -1,480 +0,0 @@
-/* generated by genserv.py - do not edit */
-static const char  _services[] = "\
-\6tcpmux\0\1t\0\
-\4echo\0\7t\0\
-\4echo\0\7u\0\
-\7discard\0\11t\2\4sink\4null\
-\7discard\0\11u\2\4sink\4null\
-\6systat\0\13t\1\5users\
-\7daytime\0\15t\0\
-\7daytime\0\15u\0\
-\7netstat\0\17t\0\
-\4qotd\0\21t\1\5quote\
-\3msp\0\22t\0\
-\3msp\0\22u\0\
-\7chargen\0\23t\2\6ttytst\6source\
-\7chargen\0\23u\2\6ttytst\6source\
-\10ftp-data\0\24t\0\
-\3ftp\0\25t\0\
-\3fsp\0\25u\1\4fspd\
-\3ssh\0\26t\0\
-\3ssh\0\26u\0\
-\6telnet\0\27t\0\
-\4smtp\0\31t\1\4mail\
-\4time\0\45t\1\11timserver\
-\4time\0\45u\1\11timserver\
-\3rlp\0\47u\1\10resource\
-\12nameserver\0\52t\1\4name\
-\5whois\0\53t\1\7nicname\
-\6tacacs\0\61t\0\
-\6tacacs\0\61u\0\
-\12re-mail-ck\0\62t\0\
-\12re-mail-ck\0\62u\0\
-\6domain\0\65t\1\12nameserver\
-\6domain\0\65u\1\12nameserver\
-\3mtp\0\71t\0\
-\11tacacs-ds\0\101t\0\
-\11tacacs-ds\0\101u\0\
-\6bootps\0\103t\0\
-\6bootps\0\103u\0\
-\6bootpc\0\104t\0\
-\6bootpc\0\104u\0\
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-\11lotusnote\5\110u\1\12lotusnotes\
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-\13prospero-np\5\365u\0\
-\13datametrics\6\155t\1\12old-radius\
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-\13sa-msg-port\6\156t\1\13old-radacct\
-\13sa-msg-port\6\156u\1\13old-radacct\
-\6kermit\6\161t\0\
-\6kermit\6\161u\0\
-\3l2f\6\245t\1\4l2tp\
-\3l2f\6\245u\1\4l2tp\
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-\6radius\7\24u\0\
-\13radius-acct\7\25t\1\7radacct\
-\13radius-acct\7\25u\1\7radacct\
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-\12codasrv-se\11\201t\0\
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-\12postgresql\25\70t\1\10postgres\
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-\10webcache\37\220t\0\
-\6tproxy\37\221t\0\
-\7omniorb\37\230t\0\
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-\20clc-build-daemon\43\36t\0\
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-\13mandelspawn\44\217u\1\12mandelbrot\
-\4zope\45\311t\0\
-\7kamanda\47\141t\0\
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-\5smsqp\53\301t\0\
-\5smsqp\53\301u\0\
-\6xpilot\73\361t\0\
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-\10sgi-cmsd\102\151u\0\
-\10sgi-crsd\102\152u\0\
-\7sgi-gcd\102\153u\0\
-\7sgi-cad\102\154t\0\
-\7isdnlog\116\53t\0\
-\7isdnlog\116\53u\0\
-\5vboxd\116\54t\0\
-\5vboxd\116\54u\0\
-\5binkp\137\352t\0\
-\3asp\152\356t\0\
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-\11dircproxy\336\250t\0\
-\5tfido\353\21t\0\
-\4fido\353\23t\0\
-\0";
-
diff --git a/libc/netbsd/resolv/__dn_comp.c b/libc/netbsd/resolv/__dn_comp.c
deleted file mode 100644
index 93d3f19..0000000
--- a/libc/netbsd/resolv/__dn_comp.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/*	$NetBSD: __dn_comp.c,v 1.4 2005/09/13 01:44:10 christos Exp $	*/
-
-/*
- * written by matthew green, 22/04/97.
- * public domain.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: __dn_comp.c,v 1.4 2005/09/13 01:44:10 christos Exp $");
-#endif /* LIBC_SCCS and not lint */
-
-#if defined(__indr_reference)
-__indr_reference(__dn_comp,dn_comp)
-#else
-
-#include <sys/types.h>
-#include <netinet/in.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-
-/* XXX THIS IS A MESS!  SEE <resolv.h> XXX */
-
-#undef dn_comp
-int	dn_comp(const char *, u_char *, int, u_char **, u_char **);
-
-int
-dn_comp(const char *exp_dn, u_char *comp_dn, u_char **dnptrs,
-    u_char **lastdnptr, int length)
-{
-
-	return __dn_comp(exp_dn, comp_dn, length, dnptrs, lastdnptr);
-}
-
-#endif
diff --git a/libc/netbsd/resolv/__res_close.c b/libc/netbsd/resolv/__res_close.c
deleted file mode 100644
index 3af50b0..0000000
--- a/libc/netbsd/resolv/__res_close.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/*	$NetBSD: __res_close.c,v 1.4 2005/09/13 01:44:10 christos Exp $	*/
-
-/*
- * written by matthew green, 22/04/97.
- * public domain.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: __res_close.c,v 1.4 2005/09/13 01:44:10 christos Exp $");
-#endif /* LIBC_SCCS and not lint */
-
-#if defined(__indr_reference)
-__indr_reference(__res_close, res_close)
-#else
-
-#include <sys/types.h>
-#include <netinet/in.h>
-#include "resolv_private.h"
-
-/* XXX THIS IS A MESS!  SEE <resolv.h> XXX */
-
-#undef res_close
-void	res_close(void);
-
-void
-res_close(void)
-{
-
-	__res_close();
-}
-
-#endif
diff --git a/libc/netbsd/resolv/__res_send.c b/libc/netbsd/resolv/__res_send.c
deleted file mode 100644
index 198b05c..0000000
--- a/libc/netbsd/resolv/__res_send.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/*	$NetBSD: __res_send.c,v 1.4 2005/09/13 01:44:10 christos Exp $	*/
-
-/*
- * written by matthew green, 22/04/97.
- * public domain.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: __res_send.c,v 1.4 2005/09/13 01:44:10 christos Exp $");
-#endif
-
-#if defined(__indr_reference)
-__indr_reference(__res_send, res_send)
-#else
-
-#include <sys/types.h>
-#include <netinet/in.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-
-/* XXX THIS IS A MESS!  SEE <resolv.h> XXX */
-
-#undef res_send
-int	res_send(const u_char *, int, u_char *, int);
-
-int
-res_send(const u_char *buf, int buflen, u_char *ans, int anssiz)
-{
-
-	return __res_send(buf, buflen, ans, anssiz);
-}
-
-#endif
diff --git a/libc/netbsd/resolv/herror.c b/libc/netbsd/resolv/herror.c
deleted file mode 100644
index e90e641..0000000
--- a/libc/netbsd/resolv/herror.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*	$NetBSD: herror.c,v 1.4 2004/05/23 05:09:52 christos Exp $	*/
-
-/*
- * Copyright (c) 1987, 1993
- *    The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-#ifdef notdef
-static const char sccsid[] = "@(#)herror.c	8.1 (Berkeley) 6/4/93";
-static const char rcsid[] = "Id: herror.c,v 1.2.206.1 2004/03/09 08:33:54 marka Exp";
-#else
-__RCSID("$NetBSD: herror.c,v 1.4 2004/05/23 05:09:52 christos Exp $");
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/uio.h>
-
-#include <netinet/in.h>
-#include "arpa_nameser.h"
-
-#include <netdb.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-#include <string.h>
-#include <unistd.h>
-
-#ifndef DE_CONST
-#define DE_CONST(c,v)   v = ((c) ? \
-    strchr((const void *)(c), *(const char *)(const void *)(c)) : NULL)
-#endif
-
-const char * const h_errlist[] = {
-	"Resolver Error 0 (no error)",
-	"Unknown host",				/* 1 HOST_NOT_FOUND */
-	"Host name lookup failure",		/* 2 TRY_AGAIN */
-	"Unknown server error",			/* 3 NO_RECOVERY */
-	"No address associated with name",	/* 4 NO_ADDRESS */
-};
-const int	h_nerr = { sizeof h_errlist / sizeof h_errlist[0] };
-
-/*
- * herror --
- *	print the error indicated by the h_errno value.
- */
-void
-herror(const char *s) {
-	struct iovec iov[4], *v = iov;
-	char *t;
-
-	if (s != NULL && *s != '\0') {
-		DE_CONST(s, t);
-		v->iov_base = t;
-		v->iov_len = strlen(t);
-		v++;
-		DE_CONST(": ", t);
-		v->iov_base = t;
-		v->iov_len = 2;
-		v++;
-	}
-	DE_CONST(hstrerror(h_errno), t);
-	v->iov_base = t;
-	v->iov_len = strlen(v->iov_base);
-	v++;
-	DE_CONST("\n", t);
-	v->iov_base = t;
-	v->iov_len = 1;
-	writev(STDERR_FILENO, iov, (v - iov) + 1);
-}
-
-/*
- * hstrerror --
- *	return the string associated with a given "host" errno value.
- */
-const char *
-hstrerror(int err) {
-	if (err < 0)
-		return ("Resolver internal error");
-	else if (err < h_nerr)
-		return (h_errlist[err]);
-	return ("Unknown resolver error");
-}
diff --git a/libc/netbsd/resolv/res_cache.c b/libc/netbsd/resolv/res_cache.c
deleted file mode 100644
index 2c912de..0000000
--- a/libc/netbsd/resolv/res_cache.c
+++ /dev/null
@@ -1,1461 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source 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:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
- * COPYRIGHT OWNER 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 "resolv_cache.h"
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-#include "pthread.h"
-
-/* This code implements a small and *simple* DNS resolver cache.
- *
- * It is only used to cache DNS answers for a maximum of CONFIG_SECONDS seconds
- * in order to reduce DNS traffic. It is not supposed to be a full DNS cache,
- * since we plan to implement that in the future in a dedicated process running
- * on the system.
- *
- * Note that its design is kept simple very intentionally, i.e.:
- *
- *  - it takes raw DNS query packet data as input, and returns raw DNS
- *    answer packet data as output
- *
- *    (this means that two similar queries that encode the DNS name
- *     differently will be treated distinctly).
- *
- *  - the TTLs of answer RRs are ignored. our DNS resolver library does not use
- *    them anyway, but it means that records with a TTL smaller than
- *    CONFIG_SECONDS will be kept in the cache anyway.
- *
- *    this is bad, but we absolutely want to avoid parsing the answer packets
- *    (and should be solved by the later full DNS cache process).
- *
- *  - the implementation is just a (query-data) => (answer-data) hash table
- *    with a trivial least-recently-used expiration policy.
- *
- * Doing this keeps the code simple and avoids to deal with a lot of things
- * that a full DNS cache is expected to do.
- *
- * The API is also very simple:
- *
- *   - the client calls _resolv_cache_get() to obtain a handle to the cache.
- *     this will initialize the cache on first usage. the result can be NULL
- *     if the cache is disabled.
- *
- *   - the client calls _resolv_cache_lookup() before performing a query
- *
- *     if the function returns RESOLV_CACHE_FOUND, a copy of the answer data
- *     has been copied into the client-provided answer buffer.
- *
- *     if the function returns RESOLV_CACHE_NOTFOUND, the client should perform
- *     a request normally, *then* call _resolv_cache_add() to add the received
- *     answer to the cache.
- *
- *     if the function returns RESOLV_CACHE_UNSUPPORTED, the client should
- *     perform a request normally, and *not* call _resolv_cache_add()
- *
- *     note that RESOLV_CACHE_UNSUPPORTED is also returned if the answer buffer
- *     is too short to accomodate the cached result.
- *
- *  - when network settings change, the cache must be flushed since the list
- *    of DNS servers probably changed. this is done by calling
- *    _resolv_cache_reset()
- *
- *    the parameter to this function must be an ever-increasing generation
- *    number corresponding to the current network settings state.
- *
- *    This is done because several threads could detect the same network
- *    settings change (but at different times) and will all end up calling the
- *    same function. Comparing with the last used generation number ensures
- *    that the cache is only flushed once per network change.
- */
-
-/* the name of an environment variable that will be checked the first time
- * this code is called if its value is "0", then the resolver cache is
- * disabled.
- */
-#define  CONFIG_ENV  "BIONIC_DNSCACHE"
-
-/* entries older than CONFIG_SECONDS seconds are always discarded.
- */
-#define  CONFIG_SECONDS    (60*10)    /* 10 minutes */
-
-/* maximum number of entries kept in the cache. This value has been
- * determined by browsing through various sites and counting the number
- * of corresponding requests. Keep in mind that our framework is currently
- * performing two requests per name lookup (one for IPv4, the other for IPv6)
- *
- *    www.google.com      4
- *    www.ysearch.com     6
- *    www.amazon.com      8
- *    www.nytimes.com     22
- *    www.espn.com        28
- *    www.msn.com         28
- *    www.lemonde.fr      35
- *
- * (determined in 2009-2-17 from Paris, France, results may vary depending
- *  on location)
- *
- * most high-level websites use lots of media/ad servers with different names
- * but these are generally reused when browsing through the site.
- *
- * As such, a valud of 64 should be relatively conformtable at the moment.
- */
-#define  CONFIG_MAX_ENTRIES    64
-
-/****************************************************************************/
-/****************************************************************************/
-/*****                                                                  *****/
-/*****                                                                  *****/
-/*****                                                                  *****/
-/****************************************************************************/
-/****************************************************************************/
-
-/* set to 1 to debug cache operations */
-#define  DEBUG       0
-
-/* set to 1 to debug query data */
-#define  DEBUG_DATA  0
-
-#if DEBUG
-#  include <logd.h>
-#  define  XLOG(...)   \
-    __libc_android_log_print(ANDROID_LOG_DEBUG,"libc",__VA_ARGS__)
-
-#include <stdio.h>
-#include <stdarg.h>
-
-/** BOUNDED BUFFER FORMATTING
- **/
-
-/* technical note:
- *
- *   the following debugging routines are used to append data to a bounded
- *   buffer they take two parameters that are:
- *
- *   - p : a pointer to the current cursor position in the buffer
- *         this value is initially set to the buffer's address.
- *
- *   - end : the address of the buffer's limit, i.e. of the first byte
- *           after the buffer. this address should never be touched.
- *
- *           IMPORTANT: it is assumed that end > buffer_address, i.e.
- *                      that the buffer is at least one byte.
- *
- *   the _bprint_() functions return the new value of 'p' after the data
- *   has been appended, and also ensure the following:
- *
- *   - the returned value will never be strictly greater than 'end'
- *
- *   - a return value equal to 'end' means that truncation occured
- *     (in which case, end[-1] will be set to 0)
- *
- *   - after returning from a _bprint_() function, the content of the buffer
- *     is always 0-terminated, even in the event of truncation.
- *
- *  these conventions allow you to call _bprint_ functions multiple times and
- *  only check for truncation at the end of the sequence, as in:
- *
- *     char  buff[1000], *p = buff, *end = p + sizeof(buff);
- *
- *     p = _bprint_c(p, end, '"');
- *     p = _bprint_s(p, end, my_string);
- *     p = _bprint_c(p, end, '"');
- *
- *     if (p >= end) {
- *        // buffer was too small
- *     }
- *
- *     printf( "%s", buff );
- */
-
-/* add a char to a bounded buffer */
-static char*
-_bprint_c( char*  p, char*  end, int  c )
-{
-    if (p < end) {
-        if (p+1 == end)
-            *p++ = 0;
-        else {
-            *p++ = (char) c;
-            *p   = 0;
-        }
-    }
-    return p;
-}
-
-/* add a sequence of bytes to a bounded buffer */
-static char*
-_bprint_b( char*  p, char*  end, const char*  buf, int  len )
-{
-    int  avail = end - p;
-
-    if (avail <= 0 || len <= 0)
-        return p;
-
-    if (avail > len)
-        avail = len;
-
-    memcpy( p, buf, avail );
-    p += avail;
-
-    if (p < end)
-        p[0] = 0;
-    else
-        end[-1] = 0;
-
-    return p;
-}
-
-/* add a string to a bounded buffer */
-static char*
-_bprint_s( char*  p, char*  end, const char*  str )
-{
-    return _bprint_b(p, end, str, strlen(str));
-}
-
-/* add a formatted string to a bounded buffer */
-static char*
-_bprint( char*  p, char*  end, const char*  format, ... )
-{
-    int      avail, n;
-    va_list  args;
-
-    avail = end - p;
-
-    if (avail <= 0)
-        return p;
-
-    va_start(args, format);
-    n = snprintf( p, avail, format, args);
-    va_end(args);
-
-    /* certain C libraries return -1 in case of truncation */
-    if (n < 0 || n > avail)
-        n = avail;
-
-    p += n;
-    /* certain C libraries do not zero-terminate in case of truncation */
-    if (p == end)
-        p[-1] = 0;
-
-    return p;
-}
-
-/* add a hex value to a bounded buffer, up to 8 digits */
-static char*
-_bprint_hex( char*  p, char*  end, unsigned  value, int  numDigits )
-{
-    char   text[sizeof(unsigned)*2];
-    int    nn = 0;
-
-    while (numDigits-- > 0) {
-        text[nn++] = "0123456789abcdef"[(value >> (numDigits*4)) & 15];
-    }
-    return _bprint_b(p, end, text, nn);
-}
-
-/* add the hexadecimal dump of some memory area to a bounded buffer */
-static char*
-_bprint_hexdump( char*  p, char*  end, const uint8_t*  data, int  datalen )
-{
-    int   lineSize = 16;
-
-    while (datalen > 0) {
-        int  avail = datalen;
-        int  nn;
-
-        if (avail > lineSize)
-            avail = lineSize;
-
-        for (nn = 0; nn < avail; nn++) {
-            if (nn > 0)
-                p = _bprint_c(p, end, ' ');
-            p = _bprint_hex(p, end, data[nn], 2);
-        }
-        for ( ; nn < lineSize; nn++ ) {
-            p = _bprint_s(p, end, "   ");
-        }
-        p = _bprint_s(p, end, "  ");
-
-        for (nn = 0; nn < avail; nn++) {
-            int  c = data[nn];
-
-            if (c < 32 || c > 127)
-                c = '.';
-
-            p = _bprint_c(p, end, c);
-        }
-        p = _bprint_c(p, end, '\n');
-
-        data    += avail;
-        datalen -= avail;
-    }
-    return p;
-}
-
-/* dump the content of a query of packet to the log */
-static void
-XLOG_BYTES( const void*  base, int  len )
-{
-    char  buff[1024];
-    char*  p = buff, *end = p + sizeof(buff);
-
-    p = _bprint_hexdump(p, end, base, len);
-    XLOG("%s",buff);
-}
-
-#else /* !DEBUG */
-#  define  XLOG(...)        ((void)0)
-#  define  XLOG_BYTES(a,b)  ((void)0)
-#endif
-
-static time_t
-_time_now( void )
-{
-    struct timeval  tv;
-
-    gettimeofday( &tv, NULL );
-    return tv.tv_sec;
-}
-
-/* reminder: the general format of a DNS packet is the following:
- *
- *    HEADER  (12 bytes)
- *    QUESTION  (variable)
- *    ANSWER (variable)
- *    AUTHORITY (variable)
- *    ADDITIONNAL (variable)
- *
- * the HEADER is made of:
- *
- *   ID     : 16 : 16-bit unique query identification field
- *
- *   QR     :  1 : set to 0 for queries, and 1 for responses
- *   Opcode :  4 : set to 0 for queries
- *   AA     :  1 : set to 0 for queries
- *   TC     :  1 : truncation flag, will be set to 0 in queries
- *   RD     :  1 : recursion desired
- *
- *   RA     :  1 : recursion available (0 in queries)
- *   Z      :  3 : three reserved zero bits
- *   RCODE  :  4 : response code (always 0=NOERROR in queries)
- *
- *   QDCount: 16 : question count
- *   ANCount: 16 : Answer count (0 in queries)
- *   NSCount: 16: Authority Record count (0 in queries)
- *   ARCount: 16: Additionnal Record count (0 in queries)
- *
- * the QUESTION is made of QDCount Question Record (QRs)
- * the ANSWER is made of ANCount RRs
- * the AUTHORITY is made of NSCount RRs
- * the ADDITIONNAL is made of ARCount RRs
- *
- * Each Question Record (QR) is made of:
- *
- *   QNAME   : variable : Query DNS NAME
- *   TYPE    : 16       : type of query (A=1, PTR=12, MX=15, AAAA=28, ALL=255)
- *   CLASS   : 16       : class of query (IN=1)
- *
- * Each Resource Record (RR) is made of:
- *
- *   NAME    : variable : DNS NAME
- *   TYPE    : 16       : type of query (A=1, PTR=12, MX=15, AAAA=28, ALL=255)
- *   CLASS   : 16       : class of query (IN=1)
- *   TTL     : 32       : seconds to cache this RR (0=none)
- *   RDLENGTH: 16       : size of RDDATA in bytes
- *   RDDATA  : variable : RR data (depends on TYPE)
- *
- * Each QNAME contains a domain name encoded as a sequence of 'labels'
- * terminated by a zero. Each label has the following format:
- *
- *    LEN  : 8     : lenght of label (MUST be < 64)
- *    NAME : 8*LEN : label length (must exclude dots)
- *
- * A value of 0 in the encoding is interpreted as the 'root' domain and
- * terminates the encoding. So 'www.android.com' will be encoded as:
- *
- *   <3>www<7>android<3>com<0>
- *
- * Where <n> represents the byte with value 'n'
- *
- * Each NAME reflects the QNAME of the question, but has a slightly more
- * complex encoding in order to provide message compression. This is achieved
- * by using a 2-byte pointer, with format:
- *
- *    TYPE   : 2  : 0b11 to indicate a pointer, 0b01 and 0b10 are reserved
- *    OFFSET : 14 : offset to another part of the DNS packet
- *
- * The offset is relative to the start of the DNS packet and must point
- * A pointer terminates the encoding.
- *
- * The NAME can be encoded in one of the following formats:
- *
- *   - a sequence of simple labels terminated by 0 (like QNAMEs)
- *   - a single pointer
- *   - a sequence of simple labels terminated by a pointer
- *
- * A pointer shall always point to either a pointer of a sequence of
- * labels (which can themselves be terminated by either a 0 or a pointer)
- *
- * The expanded length of a given domain name should not exceed 255 bytes.
- *
- * NOTE: we don't parse the answer packets, so don't need to deal with NAME
- *       records, only QNAMEs.
- */
-
-#define  DNS_HEADER_SIZE  12
-
-#define  DNS_TYPE_A   "\00\01"   /* big-endian decimal 1 */
-#define  DNS_TYPE_PTR "\00\014"  /* big-endian decimal 12 */
-#define  DNS_TYPE_MX  "\00\017"  /* big-endian decimal 15 */
-#define  DNS_TYPE_AAAA "\00\034" /* big-endian decimal 28 */
-#define  DNS_TYPE_ALL "\00\0377" /* big-endian decimal 255 */
-
-#define  DNS_CLASS_IN "\00\01"   /* big-endian decimal 1 */
-
-typedef struct {
-    const uint8_t*  base;
-    const uint8_t*  end;
-    const uint8_t*  cursor;
-} DnsPacket;
-
-static void
-_dnsPacket_init( DnsPacket*  packet, const uint8_t*  buff, int  bufflen )
-{
-    packet->base   = buff;
-    packet->end    = buff + bufflen;
-    packet->cursor = buff;
-}
-
-static void
-_dnsPacket_rewind( DnsPacket*  packet )
-{
-    packet->cursor = packet->base;
-}
-
-static void
-_dnsPacket_skip( DnsPacket*  packet, int  count )
-{
-    const uint8_t*  p = packet->cursor + count;
-
-    if (p > packet->end)
-        p = packet->end;
-
-    packet->cursor = p;
-}
-
-static int
-_dnsPacket_readInt16( DnsPacket*  packet )
-{
-    const uint8_t*  p = packet->cursor;
-
-    if (p+2 > packet->end)
-        return -1;
-
-    packet->cursor = p+2;
-    return (p[0]<< 8) | p[1];
-}
-
-/** QUERY CHECKING
- **/
-
-/* check bytes in a dns packet. returns 1 on success, 0 on failure.
- * the cursor is only advanced in the case of success
- */
-static int
-_dnsPacket_checkBytes( DnsPacket*  packet, int  numBytes, const void*  bytes )
-{
-    const uint8_t*  p = packet->cursor;
-
-    if (p + numBytes > packet->end)
-        return 0;
-
-    if (memcmp(p, bytes, numBytes) != 0)
-        return 0;
-
-    packet->cursor = p + numBytes;
-    return 1;
-}
-
-/* parse and skip a given QNAME stored in a query packet,
- * from the current cursor position. returns 1 on success,
- * or 0 for malformed data.
- */
-static int
-_dnsPacket_checkQName( DnsPacket*  packet )
-{
-    const uint8_t*  p   = packet->cursor;
-    const uint8_t*  end = packet->end;
-
-    for (;;) {
-        int  c;
-
-        if (p >= end)
-            break;
-
-        c = *p++;
-
-        if (c == 0) {
-            packet->cursor = p;
-            return 1;
-        }
-
-        /* we don't expect label compression in QNAMEs */
-        if (c >= 64)
-            break;
-
-        p += c;
-        /* we rely on the bound check at the start
-         * of the loop here */
-    }
-    /* malformed data */
-    XLOG("malformed QNAME");
-    return 0;
-}
-
-/* parse and skip a given QR stored in a packet.
- * returns 1 on success, and 0 on failure
- */
-static int
-_dnsPacket_checkQR( DnsPacket*  packet )
-{
-    int  len;
-
-    if (!_dnsPacket_checkQName(packet))
-        return 0;
-
-    /* TYPE must be one of the things we support */
-    if (!_dnsPacket_checkBytes(packet, 2, DNS_TYPE_A) &&
-        !_dnsPacket_checkBytes(packet, 2, DNS_TYPE_PTR) &&
-        !_dnsPacket_checkBytes(packet, 2, DNS_TYPE_MX) &&
-        !_dnsPacket_checkBytes(packet, 2, DNS_TYPE_AAAA) &&
-        !_dnsPacket_checkBytes(packet, 2, DNS_TYPE_ALL))
-    {
-        XLOG("unsupported TYPE");
-        return 0;
-    }
-    /* CLASS must be IN */
-    if (!_dnsPacket_checkBytes(packet, 2, DNS_CLASS_IN)) {
-        XLOG("unsupported CLASS");
-        return 0;
-    }
-
-    return 1;
-}
-
-/* check the header of a DNS Query packet, return 1 if it is one
- * type of query we can cache, or 0 otherwise
- */
-static int
-_dnsPacket_checkQuery( DnsPacket*  packet )
-{
-    const uint8_t*  p = packet->base;
-    int             qdCount, anCount, dnCount, arCount;
-
-    if (p + DNS_HEADER_SIZE > packet->end) {
-        XLOG("query packet too small");
-        return 0;
-    }
-
-    /* QR must be set to 0, opcode must be 0 and AA must be 0 */
-    /* RA, Z, and RCODE must be 0 */
-    if ((p[2] & 0xFC) != 0 || p[3] != 0) {
-        XLOG("query packet flags unsupported");
-        return 0;
-    }
-
-    /* Note that we ignore the TC and RD bits here for the
-     * following reasons:
-     *
-     * - there is no point for a query packet sent to a server
-     *   to have the TC bit set, but the implementation might
-     *   set the bit in the query buffer for its own needs
-     *   between a _resolv_cache_lookup and a
-     *   _resolv_cache_add. We should not freak out if this
-     *   is the case.
-     *
-     * - we consider that the result from a RD=0 or a RD=1
-     *   query might be different, hence that the RD bit
-     *   should be used to differentiate cached result.
-     *
-     *   this implies that RD is checked when hashing or
-     *   comparing query packets, but not TC
-     */
-
-    /* ANCOUNT, DNCOUNT and ARCOUNT must be 0 */
-    qdCount = (p[4] << 8) | p[5];
-    anCount = (p[6] << 8) | p[7];
-    dnCount = (p[8] << 8) | p[9];
-    arCount = (p[10]<< 8) | p[11];
-
-    if (anCount != 0 || dnCount != 0 || arCount != 0) {
-        XLOG("query packet contains non-query records");
-        return 0;
-    }
-
-    if (qdCount == 0) {
-        XLOG("query packet doesn't contain query record");
-        return 0;
-    }
-
-    /* Check QDCOUNT QRs */
-    packet->cursor = p + DNS_HEADER_SIZE;
-
-    for (;qdCount > 0; qdCount--)
-        if (!_dnsPacket_checkQR(packet))
-            return 0;
-
-    return 1;
-}
-
-/** QUERY DEBUGGING
- **/
-#if DEBUG
-static char*
-_dnsPacket_bprintQName(DnsPacket*  packet, char*  bp, char*  bend)
-{
-    const uint8_t*  p   = packet->cursor;
-    const uint8_t*  end = packet->end;
-    int             first = 1;
-
-    for (;;) {
-        int  c;
-
-        if (p >= end)
-            break;
-
-        c = *p++;
-
-        if (c == 0) {
-            packet->cursor = p;
-            return bp;
-        }
-
-        /* we don't expect label compression in QNAMEs */
-        if (c >= 64)
-            break;
-
-        if (first)
-            first = 0;
-        else
-            bp = _bprint_c(bp, bend, '.');
-
-        bp = _bprint_b(bp, bend, (const char*)p, c);
-
-        p += c;
-        /* we rely on the bound check at the start
-         * of the loop here */
-    }
-    /* malformed data */
-    bp = _bprint_s(bp, bend, "<MALFORMED>");
-    return bp;
-}
-
-static char*
-_dnsPacket_bprintQR(DnsPacket*  packet, char*  p, char*  end)
-{
-#define  QQ(x)   { DNS_TYPE_##x, #x }
-    static const struct { 
-        const char*  typeBytes;
-        const char*  typeString; 
-    } qTypes[] =
-    {
-        QQ(A), QQ(PTR), QQ(MX), QQ(AAAA), QQ(ALL),
-        { NULL, NULL }
-    };
-    int          nn;
-    const char*  typeString = NULL;
-
-    /* dump QNAME */
-    p = _dnsPacket_bprintQName(packet, p, end);
-
-    /* dump TYPE */
-    p = _bprint_s(p, end, " (");
-
-    for (nn = 0; qTypes[nn].typeBytes != NULL; nn++) {
-        if (_dnsPacket_checkBytes(packet, 2, qTypes[nn].typeBytes)) {
-            typeString = qTypes[nn].typeString;
-            break;
-        }
-    }
-
-    if (typeString != NULL)
-        p = _bprint_s(p, end, typeString);
-    else {
-        int  typeCode = _dnsPacket_readInt16(packet);
-        p = _bprint(p, end, "UNKNOWN-%d", typeCode);
-    }
-
-    p = _bprint_c(p, end, ')');
-
-    /* skip CLASS */
-    _dnsPacket_skip(packet, 2);
-    return p;
-}
-
-/* this function assumes the packet has already been checked */
-static char*
-_dnsPacket_bprintQuery( DnsPacket*  packet, char*  p, char*  end )
-{
-    int   qdCount;
-
-    if (packet->base[2] & 0x1) {
-        p = _bprint_s(p, end, "RECURSIVE ");
-    }
-
-    _dnsPacket_skip(packet, 4);
-    qdCount = _dnsPacket_readInt16(packet);
-    _dnsPacket_skip(packet, 6);
-
-    for ( ; qdCount > 0; qdCount-- ) {
-        p = _dnsPacket_bprintQR(packet, p, end);
-    }
-    return p;
-}
-#endif
-
-
-/** QUERY HASHING SUPPORT
- **
- ** THE FOLLOWING CODE ASSUMES THAT THE INPUT PACKET HAS ALREADY
- ** BEEN SUCCESFULLY CHECKED.
- **/
-
-/* use 32-bit FNV hash function */
-#define  FNV_MULT   16777619U
-#define  FNV_BASIS  2166136261U
-
-static unsigned
-_dnsPacket_hashBytes( DnsPacket*  packet, int  numBytes, unsigned  hash )
-{
-    const uint8_t*  p   = packet->cursor;
-    const uint8_t*  end = packet->end;
-
-    while (numBytes > 0 && p < end) {
-        hash = hash*FNV_MULT ^ *p++;
-    }
-    packet->cursor = p;
-    return hash;
-}
-
-
-static unsigned
-_dnsPacket_hashQName( DnsPacket*  packet, unsigned  hash )
-{
-    const uint8_t*  p   = packet->cursor;
-    const uint8_t*  end = packet->end;
-
-    for (;;) {
-        int  c;
-
-        if (p >= end) {  /* should not happen */
-            XLOG("%s: INTERNAL_ERROR: read-overflow !!\n", __FUNCTION__);
-            break;
-        }
-
-        c = *p++;
-
-        if (c == 0)
-            break;
-
-        if (c >= 64) {
-            XLOG("%s: INTERNAL_ERROR: malformed domain !!\n", __FUNCTION__);
-            break;
-        }
-        if (p + c >= end) {
-            XLOG("%s: INTERNAL_ERROR: simple label read-overflow !!\n",
-                    __FUNCTION__);
-            break;
-        }
-        while (c > 0) {
-            hash = hash*FNV_MULT ^ *p++;
-            c   -= 1;
-        }
-    }
-    packet->cursor = p;
-    return hash;
-}
-
-static unsigned
-_dnsPacket_hashQR( DnsPacket*  packet, unsigned  hash )
-{
-    int   len;
-
-    hash = _dnsPacket_hashQName(packet, hash);
-    hash = _dnsPacket_hashBytes(packet, 4, hash); /* TYPE and CLASS */
-    return hash;
-}
-
-static unsigned
-_dnsPacket_hashQuery( DnsPacket*  packet )
-{
-    unsigned  hash = FNV_BASIS;
-    int       count;
-    _dnsPacket_rewind(packet);
-
-    /* we ignore the TC bit for reasons explained in
-     * _dnsPacket_checkQuery().
-     *
-     * however we hash the RD bit to differentiate
-     * between answers for recursive and non-recursive
-     * queries.
-     */
-    hash = hash*FNV_MULT ^ (packet->base[2] & 1);
-
-    /* assume: other flags are 0 */
-    _dnsPacket_skip(packet, 4);
-
-    /* read QDCOUNT */
-    count = _dnsPacket_readInt16(packet);
-
-    /* assume: ANcount, NScount, ARcount are 0 */
-    _dnsPacket_skip(packet, 6);
-
-    /* hash QDCOUNT QRs */
-    for ( ; count > 0; count-- )
-        hash = _dnsPacket_hashQR(packet, hash);
-
-    return hash;
-}
-
-
-/** QUERY COMPARISON
- **
- ** THE FOLLOWING CODE ASSUMES THAT THE INPUT PACKETS HAVE ALREADY
- ** BEEN SUCCESFULLY CHECKED.
- **/
-
-static int
-_dnsPacket_isEqualDomainName( DnsPacket*  pack1, DnsPacket*  pack2 )
-{
-    const uint8_t*  p1   = pack1->cursor;
-    const uint8_t*  end1 = pack1->end;
-    const uint8_t*  p2   = pack2->cursor;
-    const uint8_t*  end2 = pack2->end;
-
-    for (;;) {
-        int  c1, c2;
-
-        if (p1 >= end1 || p2 >= end2) {
-            XLOG("%s: INTERNAL_ERROR: read-overflow !!\n", __FUNCTION__);
-            break;
-        }
-        c1 = *p1++;
-        c2 = *p2++;
-        if (c1 != c2)
-            break;
-
-        if (c1 == 0) {
-            pack1->cursor = p1;
-            pack2->cursor = p2;
-            return 1;
-        }
-        if (c1 >= 64) {
-            XLOG("%s: INTERNAL_ERROR: malformed domain !!\n", __FUNCTION__);
-            break;
-        }
-        if ((p1+c1 > end1) || (p2+c1 > end2)) {
-            XLOG("%s: INTERNAL_ERROR: simple label read-overflow !!\n",
-                    __FUNCTION__);
-            break;
-        }
-        if (memcmp(p1, p2, c1) != 0)
-            break;
-        p1 += c1;
-        p2 += c1;
-        /* we rely on the bound checks at the start of the loop */
-    }
-    /* not the same, or one is malformed */
-    XLOG("different DN");
-    return 0;
-}
-
-static int
-_dnsPacket_isEqualBytes( DnsPacket*  pack1, DnsPacket*  pack2, int  numBytes )
-{
-    const uint8_t*  p1 = pack1->cursor;
-    const uint8_t*  p2 = pack2->cursor;
-
-    if ( p1 + numBytes > pack1->end || p2 + numBytes > pack2->end )
-        return 0;
-
-    if ( memcmp(p1, p2, numBytes) != 0 )
-        return 0;
-
-    pack1->cursor += numBytes;
-    pack2->cursor += numBytes;
-    return 1;
-}
-
-static int
-_dnsPacket_isEqualQR( DnsPacket*  pack1, DnsPacket*  pack2 )
-{
-    /* compare domain name encoding + TYPE + CLASS */
-    if ( !_dnsPacket_isEqualDomainName(pack1, pack2) ||
-         !_dnsPacket_isEqualBytes(pack1, pack2, 2+2) )
-        return 0;
-
-    return 1;
-}
-
-static int
-_dnsPacket_isEqualQuery( DnsPacket*  pack1, DnsPacket*  pack2 )
-{
-    int  count1, count2;
-
-    /* compare the headers, ignore most fields */
-    _dnsPacket_rewind(pack1);
-    _dnsPacket_rewind(pack2);
-
-    /* compare RD, ignore TC, see comment in _dnsPacket_checkQuery */
-    if ((pack1->base[2] & 1) != (pack2->base[2] & 1)) {
-        XLOG("different RD");
-        return 0;
-    }
-
-    /* assume: other flags are all 0 */
-    _dnsPacket_skip(pack1, 4);
-    _dnsPacket_skip(pack2, 4);
-
-    /* compare QDCOUNT */
-    count1 = _dnsPacket_readInt16(pack1);
-    count2 = _dnsPacket_readInt16(pack2);
-    if (count1 != count2 || count1 < 0) {
-        XLOG("different QDCOUNT");
-        return 0;
-    }
-
-    /* assume: ANcount, NScount and ARcount are all 0 */
-    _dnsPacket_skip(pack1, 6);
-    _dnsPacket_skip(pack2, 6);
-
-    /* compare the QDCOUNT QRs */
-    for ( ; count1 > 0; count1-- ) {
-        if (!_dnsPacket_isEqualQR(pack1, pack2)) {
-            XLOG("different QR");
-            return 0;
-        }
-    }
-    return 1;
-}
-
-/****************************************************************************/
-/****************************************************************************/
-/*****                                                                  *****/
-/*****                                                                  *****/
-/*****                                                                  *****/
-/****************************************************************************/
-/****************************************************************************/
-
-/* cache entry. for simplicity, 'hash' and 'hlink' are inlined in this
- * structure though they are conceptually part of the hash table.
- *
- * similarly, mru_next and mru_prev are part of the global MRU list
- */
-typedef struct Entry {
-    unsigned int     hash;   /* hash value */
-    struct Entry*    hlink;  /* next in collision chain */
-    struct Entry*    mru_prev;
-    struct Entry*    mru_next;
-
-    const uint8_t*   query;
-    int              querylen;
-    const uint8_t*   answer;
-    int              answerlen;
-    time_t           when;   /* time_t when entry was added to table */
-    int              id;     /* for debugging purpose */
-} Entry;
-
-
-static void
-entry_free( Entry*  e )
-{
-    /* everything is allocated in a single memory block */
-    if (e) {
-        free(e);
-    }
-}
-
-static __inline__ void
-entry_mru_remove( Entry*  e )
-{
-    e->mru_prev->mru_next = e->mru_next;
-    e->mru_next->mru_prev = e->mru_prev;
-}
-
-static __inline__ void
-entry_mru_add( Entry*  e, Entry*  list )
-{
-    Entry*  first = list->mru_next;
-
-    e->mru_next = first;
-    e->mru_prev = list;
-
-    list->mru_next  = e;
-    first->mru_prev = e;
-}
-
-/* compute the hash of a given entry, this is a hash of most
- * data in the query (key) */
-static unsigned
-entry_hash( const Entry*  e )
-{
-    DnsPacket  pack[1];
-
-    _dnsPacket_init(pack, e->query, e->querylen);
-    return _dnsPacket_hashQuery(pack);
-}
-
-/* initialize an Entry as a search key, this also checks the input query packet
- * returns 1 on success, or 0 in case of unsupported/malformed data */
-static int
-entry_init_key( Entry*  e, const void*  query, int  querylen )
-{
-    DnsPacket  pack[1];
-
-    memset(e, 0, sizeof(*e));
-
-    e->query    = query;
-    e->querylen = querylen;
-    e->hash     = entry_hash(e);
-
-    _dnsPacket_init(pack, query, querylen);
-
-    return _dnsPacket_checkQuery(pack);
-}
-
-/* allocate a new entry as a cache node */
-static Entry*
-entry_alloc( const Entry*  init, const void*  answer, int  answerlen )
-{
-    Entry*  e;
-    int     size;
-
-    size = sizeof(*e) + init->querylen + answerlen;
-    e    = calloc(size, 1);
-    if (e == NULL)
-        return e;
-
-    e->hash     = init->hash;
-    e->query    = (const uint8_t*)(e+1);
-    e->querylen = init->querylen;
-
-    memcpy( (char*)e->query, init->query, e->querylen );
-
-    e->answer    = e->query + e->querylen;
-    e->answerlen = answerlen;
-
-    memcpy( (char*)e->answer, answer, e->answerlen );
-
-    e->when  = _time_now();
-
-    return e;
-}
-
-static int
-entry_equals( const Entry*  e1, const Entry*  e2 )
-{
-    DnsPacket  pack1[1], pack2[1];
-
-    if (e1->querylen != e2->querylen) {
-        return 0;
-    }
-    _dnsPacket_init(pack1, e1->query, e1->querylen);
-    _dnsPacket_init(pack2, e2->query, e2->querylen);
-
-    return _dnsPacket_isEqualQuery(pack1, pack2);
-}
-
-/****************************************************************************/
-/****************************************************************************/
-/*****                                                                  *****/
-/*****                                                                  *****/
-/*****                                                                  *****/
-/****************************************************************************/
-/****************************************************************************/
-
-/* We use a simple hash table with external collision lists
- * for simplicity, the hash-table fields 'hash' and 'hlink' are
- * inlined in the Entry structure.
- */
-#define  MAX_HASH_ENTRIES   (2*CONFIG_MAX_ENTRIES)
-
-typedef struct resolv_cache {
-    int              num_entries;
-    Entry            mru_list;
-    pthread_mutex_t  lock;
-    unsigned         generation;
-    int              last_id;
-    Entry*           entries[ MAX_HASH_ENTRIES ];
-} Cache;
-
-
-#define  HTABLE_VALID(x)  ((x) != NULL && (x) != HTABLE_DELETED)
-
-static void
-_cache_flush_locked( Cache*  cache )
-{
-    int     nn;
-    time_t  now = _time_now();
-
-    for (nn = 0; nn < MAX_HASH_ENTRIES; nn++) 
-    {
-        Entry**  pnode = &cache->entries[nn];
-
-        while (*pnode != NULL) {
-            Entry*  node = *pnode;
-            *pnode = node->hlink;
-            entry_free(node);
-        }
-    }
-
-    cache->mru_list.mru_next = cache->mru_list.mru_prev = &cache->mru_list;
-    cache->num_entries       = 0;
-    cache->last_id           = 0;
-
-    XLOG("*************************\n"
-         "*** DNS CACHE FLUSHED ***\n"
-         "*************************");
-}
-
-struct resolv_cache*
-_resolv_cache_create( void )
-{
-    struct resolv_cache*  cache;
-
-    cache = calloc(sizeof(*cache), 1);
-    if (cache) {
-        cache->generation = ~0U;
-        pthread_mutex_init( &cache->lock, NULL );
-        cache->mru_list.mru_prev = cache->mru_list.mru_next = &cache->mru_list;
-        XLOG("%s: cache created\n", __FUNCTION__);
-    }
-    return cache;
-}
-
-
-#if DEBUG
-static void
-_dump_query( const uint8_t*  query, int  querylen )
-{
-    char       temp[256], *p=temp, *end=p+sizeof(temp);
-    DnsPacket  pack[1];
-
-    _dnsPacket_init(pack, query, querylen);
-    p = _dnsPacket_bprintQuery(pack, p, end);
-    XLOG("QUERY: %s", temp);
-}
-
-static void
-_cache_dump_mru( Cache*  cache )
-{
-    char    temp[512], *p=temp, *end=p+sizeof(temp);
-    Entry*  e;
-
-    p = _bprint(temp, end, "MRU LIST (%2d): ", cache->num_entries);
-    for (e = cache->mru_list.mru_next; e != &cache->mru_list; e = e->mru_next)
-        p = _bprint(p, end, " %d", e->id);
-
-    XLOG("%s", temp);
-}
-#endif
-
-#if DEBUG
-#  define  XLOG_QUERY(q,len)   _dump_query((q), (len))
-#else
-#  define  XLOG_QUERY(q,len)   ((void)0)
-#endif
-
-/* This function tries to find a key within the hash table
- * In case of success, it will return a *pointer* to the hashed key.
- * In case of failure, it will return a *pointer* to NULL
- *
- * So, the caller must check '*result' to check for success/failure.
- *
- * The main idea is that the result can later be used directly in
- * calls to _resolv_cache_add or _resolv_cache_remove as the 'lookup'
- * parameter. This makes the code simpler and avoids re-searching
- * for the key position in the htable.
- *
- * The result of a lookup_p is only valid until you alter the hash
- * table.
- */
-static Entry**
-_cache_lookup_p( Cache*   cache,
-                 Entry*   key )
-{
-    int      index = key->hash % MAX_HASH_ENTRIES;
-    Entry**  pnode = &cache->entries[ key->hash % MAX_HASH_ENTRIES ];
-
-    while (*pnode != NULL) {
-        Entry*  node = *pnode;
-
-        if (node == NULL)
-            break;
-
-        if (node->hash == key->hash && entry_equals(node, key))
-            break;
-
-        pnode = &node->hlink;
-    }
-    return pnode; 
-}
-
-/* Add a new entry to the hash table. 'lookup' must be the
- * result of an immediate previous failed _lookup_p() call
- * (i.e. with *lookup == NULL), and 'e' is the pointer to the
- * newly created entry
- */
-static void
-_cache_add_p( Cache*   cache,
-              Entry**  lookup,
-              Entry*   e )
-{
-    *lookup = e;
-    e->id = ++cache->last_id;
-    entry_mru_add(e, &cache->mru_list);
-    cache->num_entries += 1;
-
-    XLOG("%s: entry %d added (count=%d)", __FUNCTION__,
-         e->id, cache->num_entries);
-}
-
-/* Remove an existing entry from the hash table,
- * 'lookup' must be the result of an immediate previous
- * and succesful _lookup_p() call.
- */
-static void
-_cache_remove_p( Cache*   cache,
-                 Entry**  lookup )
-{
-    Entry*  e  = *lookup;
-
-    XLOG("%s: entry %d removed (count=%d)", __FUNCTION__,
-         e->id, cache->num_entries-1);
-
-    entry_mru_remove(e);
-    *lookup = e->hlink;
-    entry_free(e);
-    cache->num_entries -= 1;
-}
-
-/* Remove the oldest entry from the hash table.
- */
-static void
-_cache_remove_oldest( Cache*  cache )
-{
-    Entry*   oldest = cache->mru_list.mru_prev;
-    Entry**  lookup = _cache_lookup_p(cache, oldest);
-
-    if (*lookup == NULL) { /* should not happen */
-        XLOG("%s: OLDEST NOT IN HTABLE ?", __FUNCTION__);
-        return;
-    }
-    _cache_remove_p(cache, lookup);
-}
-
-
-ResolvCacheStatus
-_resolv_cache_lookup( struct resolv_cache*  cache,
-                      const void*           query,
-                      int                   querylen,
-                      void*                 answer,
-                      int                   answersize,
-                      int                  *answerlen )
-{
-    DnsPacket  pack[1];
-    Entry      key[1];
-    int        index;
-    Entry**    lookup;
-    Entry*     e;
-    time_t     now;
-
-    ResolvCacheStatus  result = RESOLV_CACHE_NOTFOUND;
-
-    XLOG("%s: lookup", __FUNCTION__);
-    XLOG_QUERY(query, querylen);
-
-    /* we don't cache malformed queries */
-    if (!entry_init_key(key, query, querylen)) {
-        XLOG("%s: unsupported query", __FUNCTION__);
-        return RESOLV_CACHE_UNSUPPORTED;
-    }
-    /* lookup cache */
-    pthread_mutex_lock( &cache->lock );
-
-    /* see the description of _lookup_p to understand this.
-     * the function always return a non-NULL pointer.
-     */
-    lookup = _cache_lookup_p(cache, key);
-    e      = *lookup;
-
-    if (e == NULL) {
-        XLOG( "NOT IN CACHE");
-        goto Exit;
-    }
-
-    now = _time_now();
-
-    /* remove stale entries here */
-    if ( (unsigned)(now - e->when) >= CONFIG_SECONDS ) {
-        XLOG( " NOT IN CACHE (STALE ENTRY %p DISCARDED)", *lookup );
-        _cache_remove_p(cache, lookup);
-        goto Exit;
-    }
-
-    *answerlen = e->answerlen;
-    if (e->answerlen > answersize) {
-        /* NOTE: we return UNSUPPORTED if the answer buffer is too short */
-        result = RESOLV_CACHE_UNSUPPORTED;
-        XLOG(" ANSWER TOO LONG");
-        goto Exit;
-    }
-
-    memcpy( answer, e->answer, e->answerlen );
-
-    /* bump up this entry to the top of the MRU list */
-    if (e != cache->mru_list.mru_next) {
-        entry_mru_remove( e );
-        entry_mru_add( e, &cache->mru_list );
-    }
-
-    XLOG( "FOUND IN CACHE entry=%p", e );
-    result = RESOLV_CACHE_FOUND;
-
-Exit:
-    pthread_mutex_unlock( &cache->lock );
-    return result;
-}
-
-
-void
-_resolv_cache_add( struct resolv_cache*  cache,
-                   const void*           query,
-                   int                   querylen,
-                   const void*           answer,
-                   int                   answerlen )
-{
-    Entry    key[1];
-    Entry*   e;
-    Entry**  lookup;
-
-    /* don't assume that the query has already been cached
-     */
-    if (!entry_init_key( key, query, querylen )) {
-        XLOG( "%s: passed invalid query ?", __FUNCTION__);
-        return;
-    }
-
-    pthread_mutex_lock( &cache->lock );
-
-    XLOG( "%s: query:", __FUNCTION__ );
-    XLOG_QUERY(query,querylen);
-#if DEBUG_DATA
-    XLOG( "answer:");
-    XLOG_BYTES(answer,answerlen);
-#endif
-
-    lookup = _cache_lookup_p(cache, key);
-    e      = *lookup;
-
-    if (e != NULL) { /* should not happen */
-        XLOG("%s: ALREADY IN CACHE (%p) ? IGNORING ADD",
-             __FUNCTION__, e);
-        goto Exit;
-    }
-
-    if (cache->num_entries >= CONFIG_MAX_ENTRIES) {
-        _cache_remove_oldest(cache);
-        /* need to lookup again */
-        lookup = _cache_lookup_p(cache, key);
-        e      = *lookup;
-        if (e != NULL) {
-            XLOG("%s: ALREADY IN CACHE (%p) ? IGNORING ADD",
-                __FUNCTION__, e);
-            goto Exit;
-        }
-    }
-
-    e = entry_alloc( key, answer, answerlen );
-    if (e != NULL) {
-        _cache_add_p(cache, lookup, e);
-    }
-#if DEBUG
-    _cache_dump_mru(cache);
-#endif
-Exit:
-    pthread_mutex_unlock( &cache->lock );
-}
-
-/****************************************************************************/
-/****************************************************************************/
-/*****                                                                  *****/
-/*****                                                                  *****/
-/*****                                                                  *****/
-/****************************************************************************/
-/****************************************************************************/
-
-static struct resolv_cache*  _res_cache;
-static pthread_once_t        _res_cache_once;
-
-static void
-_res_cache_init( void )
-{
-    const char*  env = getenv(CONFIG_ENV);
-
-    if (env && atoi(env) == 0) {
-        /* the cache is disabled */
-        return;
-    }
-
-    _res_cache = _resolv_cache_create();
-}
-
-
-struct resolv_cache*
-__get_res_cache( void )
-{
-    pthread_once( &_res_cache_once, _res_cache_init );
-    return _res_cache;
-}
-
-void
-_resolv_cache_reset( unsigned  generation )
-{
-    XLOG("%s: generation=%d", __FUNCTION__, generation);
-
-    if (_res_cache == NULL)
-        return;
-
-    pthread_mutex_lock( &_res_cache->lock );
-    if (_res_cache->generation != generation) {
-        _cache_flush_locked(_res_cache);
-        _res_cache->generation = generation;
-    }
-    pthread_mutex_unlock( &_res_cache->lock );
-}
diff --git a/libc/netbsd/resolv/res_comp.c b/libc/netbsd/resolv/res_comp.c
deleted file mode 100644
index 6991e8b..0000000
--- a/libc/netbsd/resolv/res_comp.c
+++ /dev/null
@@ -1,259 +0,0 @@
-/*	$NetBSD: res_comp.c,v 1.6 2004/05/22 23:47:09 christos Exp $	*/
-
-/*
- * Copyright (c) 1985, 1993
- *    The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.
- *
- * 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, and that
- * the name of Digital Equipment Corporation not be used in advertising or
- * publicity pertaining to distribution of the document or software without
- * specific, written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
- * CORPORATION 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.
- */
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-#ifdef notdef
-static const char sccsid[] = "@(#)res_comp.c	8.1 (Berkeley) 6/4/93";
-static const char rcsid[] = "Id: res_comp.c,v 1.1.2.1.4.1 2004/03/09 08:33:54 marka Exp";
-#else
-__RCSID("$NetBSD: res_comp.c,v 1.6 2004/05/22 23:47:09 christos Exp $");
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <netinet/in.h>
-#include "arpa_nameser.h"
-#include <ctype.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-#include <stdio.h>
-#include <string.h>
-#include <unistd.h>
-
-/*
- * Expand compressed domain name 'src' to full domain name.
- * 'msg' is a pointer to the begining of the message,
- * 'eom' points to the first location after the message,
- * 'dst' is a pointer to a buffer of size 'dstsiz' for the result.
- * Return size of compressed name or -1 if there was an error.
- */
-int
-dn_expand(const u_char *msg, const u_char *eom, const u_char *src,
-	  char *dst, int dstsiz)
-{
-	int n = ns_name_uncompress(msg, eom, src, dst, (size_t)dstsiz);
-
-	if (n > 0 && dst[0] == '.')
-		dst[0] = '\0';
-	return (n);
-}
-
-/*
- * Pack domain name 'exp_dn' in presentation form into 'comp_dn'.
- * Return the size of the compressed name or -1.
- * 'length' is the size of the array pointed to by 'comp_dn'.
- */
-int
-dn_comp(const char *src, u_char *dst, int dstsiz,
-	u_char **dnptrs, u_char **lastdnptr)
-{
-	return (ns_name_compress(src, dst, (size_t)dstsiz,
-				 (const u_char **)dnptrs,
-				 (const u_char **)lastdnptr));
-}
-
-/*
- * Skip over a compressed domain name. Return the size or -1.
- */
-int
-dn_skipname(const u_char *ptr, const u_char *eom) {
-	const u_char *saveptr = ptr;
-
-	if (ns_name_skip(&ptr, eom) == -1)
-		return (-1);
-	return (ptr - saveptr);
-}
-
-/*
- * Verify that a domain name uses an acceptable character set.
- */
-
-/*
- * Note the conspicuous absence of ctype macros in these definitions.  On
- * non-ASCII hosts, we can't depend on string literals or ctype macros to
- * tell us anything about network-format data.  The rest of the BIND system
- * is not careful about this, but for some reason, we're doing it right here.
- */
-#define PERIOD 0x2e
-#define	hyphenchar(c) ((c) == 0x2d)
-#define bslashchar(c) ((c) == 0x5c)
-#define periodchar(c) ((c) == PERIOD)
-#define asterchar(c) ((c) == 0x2a)
-#define alphachar(c) (((c) >= 0x41 && (c) <= 0x5a) \
-		   || ((c) >= 0x61 && (c) <= 0x7a))
-#define digitchar(c) ((c) >= 0x30 && (c) <= 0x39)
-
-#define borderchar(c) (alphachar(c) || digitchar(c))
-#define middlechar(c) (borderchar(c) || hyphenchar(c))
-#define	domainchar(c) ((c) > 0x20 && (c) < 0x7f)
-
-int
-res_hnok(const char *dn) {
-	int pch = PERIOD, ch = *dn++;
-
-	while (ch != '\0') {
-		int nch = *dn++;
-
-		if (periodchar(ch)) {
-			;
-		} else if (periodchar(pch)) {
-			if (!borderchar(ch))
-				return (0);
-		} else if (periodchar(nch) || nch == '\0') {
-			if (!borderchar(ch))
-				return (0);
-		} else {
-			if (!middlechar(ch))
-				return (0);
-		}
-		pch = ch, ch = nch;
-	}
-	return (1);
-}
-
-/*
- * hostname-like (A, MX, WKS) owners can have "*" as their first label
- * but must otherwise be as a host name.
- */
-int
-res_ownok(const char *dn) {
-	if (asterchar(dn[0])) {
-		if (periodchar(dn[1]))
-			return (res_hnok(dn+2));
-		if (dn[1] == '\0')
-			return (1);
-	}
-	return (res_hnok(dn));
-}
-
-/*
- * SOA RNAMEs and RP RNAMEs can have any printable character in their first
- * label, but the rest of the name has to look like a host name.
- */
-int
-res_mailok(const char *dn) {
-	int ch, escaped = 0;
-
-	/* "." is a valid missing representation */
-	if (*dn == '\0')
-		return (1);
-
-	/* otherwise <label>.<hostname> */
-	while ((ch = *dn++) != '\0') {
-		if (!domainchar(ch))
-			return (0);
-		if (!escaped && periodchar(ch))
-			break;
-		if (escaped)
-			escaped = 0;
-		else if (bslashchar(ch))
-			escaped = 1;
-	}
-	if (periodchar(ch))
-		return (res_hnok(dn));
-	return (0);
-}
-
-/*
- * This function is quite liberal, since RFC 1034's character sets are only
- * recommendations.
- */
-int
-res_dnok(const char *dn) {
-	int ch;
-
-	while ((ch = *dn++) != '\0')
-		if (!domainchar(ch))
-			return (0);
-	return (1);
-}
-
-#ifdef BIND_4_COMPAT
-/*
- * This module must export the following externally-visible symbols:
- *	___putlong
- *	___putshort
- *	__getlong
- *	__getshort
- * Note that one _ comes from C and the others come from us.
- */
-void __putlong(u_int32_t src, u_char *dst) { ns_put32(src, dst); }
-void __putshort(u_int16_t src, u_char *dst) { ns_put16(src, dst); }
-#ifndef __ultrix__
-u_int32_t _getlong(const u_char *src) { return (ns_get32(src)); }
-u_int16_t _getshort(const u_char *src) { return (ns_get16(src)); }
-#endif /*__ultrix__*/
-#endif /*BIND_4_COMPAT*/
diff --git a/libc/netbsd/resolv/res_compat.c b/libc/netbsd/resolv/res_compat.c
deleted file mode 100644
index 19a1d5f..0000000
--- a/libc/netbsd/resolv/res_compat.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*	$NetBSD: res_compat.c,v 1.1 2004/06/09 18:07:03 christos Exp $	*/
-
-/*-
- * Copyright (c) 2004 The NetBSD Foundation, Inc.
- * All rights reserved.
- *
- * This code is derived from software contributed to The NetBSD Foundation
- * by Christos Zoulas.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *        This product includes software developed by the NetBSD
- *        Foundation, Inc. and its contributors.
- * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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 <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: res_compat.c,v 1.1 2004/06/09 18:07:03 christos Exp $");
-#endif
-
-#include <sys/types.h>
-#include <arpa/inet.h>
-#include "arpa_nameser.h"
-#include <netdb.h>
-#include <string.h>
-#define __OLD_RES_STATE
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include "resolv.h"
-#endif
-
-#undef _res
-
-/*
- * Binary Compatibility; this symbol does not appear in a header file
- * Most userland programs use this to set res_options before res_init()
- * is called. There are hooks to res_init() to consult the data in this
- * structure. The hooks are provided indirectly by the two functions below.
- * We depend on the fact the the first 440 [32 bit machines] bytes are
- * shared between the two structures.
- */
-#ifndef __BIND_NOSTATIC
-struct __res_state _res
-#if defined(__BIND_RES_TEXT)
-	= { RES_TIMEOUT, }      /* Motorola, et al. */
-# endif
-;
-
-void *__res_get_old_state(void);
-void __res_put_old_state(void *);
-
-void *
-__res_get_old_state(void)
-{
-	return &_res;
-}
-
-void
-__res_put_old_state(void *res)
-{
-	(void)memcpy(&_res, res, sizeof(_res));
-}
-#endif
diff --git a/libc/netbsd/resolv/res_data.c b/libc/netbsd/resolv/res_data.c
deleted file mode 100644
index e60ecfd..0000000
--- a/libc/netbsd/resolv/res_data.c
+++ /dev/null
@@ -1,332 +0,0 @@
-/*	$NetBSD: res_data.c,v 1.8 2004/06/09 18:07:03 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * Copyright (c) 1995-1999 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-#ifdef notdef
-static const char rcsid[] = "Id: res_data.c,v 1.1.206.2 2004/03/16 12:34:18 marka Exp";
-#else
-__RCSID("$NetBSD: res_data.c,v 1.8 2004/06/09 18:07:03 christos Exp $");
-#endif
-#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 <ctype.h>
-#include <netdb.h>
-#include "resolv_private.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-
-const char * const _res_opcodes[] = {
-	"QUERY",
-	"IQUERY",
-	"CQUERYM",
-	"CQUERYU",	/* experimental */
-	"NOTIFY",	/* experimental */
-	"UPDATE",
-	"6",
-	"7",
-	"8",
-	"9",
-	"10",
-	"11",
-	"12",
-	"13",
-	"ZONEINIT",
-	"ZONEREF",
-};
-
-#ifdef BIND_UPDATE
-const char * const _res_sectioncodes[] = {
-	"ZONE",
-	"PREREQUISITES",
-	"UPDATE",
-	"ADDITIONAL",
-};
-#endif
-
-#ifndef __BIND_NOSTATIC
-extern struct __res_state _nres;
-
-/* Proto. */
-
-int  res_ourserver_p(const res_state, const struct sockaddr *);
-
-#ifdef ANDROID_CHANGES
-int res_need_init() {
-	return ((_nres.options & RES_INIT) == 0U) || res_get_dns_changed();
-}
-#else
-#define res_need_init()   ((_nres.options & RES_INIT) == 0U)
-#endif
-
-int
-res_init(void) {
-	int rv;
-	extern int __res_vinit(res_state, int);
-#ifdef COMPAT__RES
-	/*
-	 * Compatibility with program that were accessing _res directly
-	 * to set options. We keep another struct res that is the same
-	 * size as the original res structure, and then copy fields to
-	 * it so that we achieve the same initialization
-	 */
-	extern void *__res_get_old_state(void);
-	extern void __res_put_old_state(void *);
-	res_state ores = __res_get_old_state();
-
-	if (ores->options != 0)
-		_nres.options = ores->options;
-	if (ores->retrans != 0)
-		_nres.retrans = ores->retrans;
-	if (ores->retry != 0)
-		_nres.retry = ores->retry;
-#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.
-	 *
-	 * _nres.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 (!_nres.retrans)
-		_nres.retrans = RES_TIMEOUT;
-	if (!_nres.retry)
-		_nres.retry = 4;
-	if (!(_nres.options & RES_INIT))
-		_nres.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 (!_nres.id)
-		_nres.id = res_randomid();
-
-	rv = __res_vinit(&_nres, 1);
-#ifdef COMPAT__RES
-	__res_put_old_state(&_nres);
-#endif
-	return rv;
-}
-
-void
-p_query(const u_char *msg) {
-	fp_query(msg, stdout);
-}
-
-void
-fp_query(const u_char *msg, FILE *file) {
-	fp_nquery(msg, PACKETSZ, file);
-}
-
-void
-fp_nquery(const u_char *msg, int len, FILE *file) {
-	if (res_need_init() && res_init() == -1)
-		return;
-
-	res_pquery(&_nres, msg, len, file);
-}
-
-int
-res_mkquery(int op,			/* opcode of query */
-	    const char *dname,		/* domain name */
-	    int class, int type,	/* class and type of query */
-	    const u_char *data,		/* resource record data */
-	    int datalen,		/* length of data */
-	    const u_char *newrr_in,	/* new rr for modify or append */
-	    u_char *buf,		/* buffer to put query */
-	    int buflen)			/* size of buffer */
-{
-	if (res_need_init() && res_init() == -1) {
-		RES_SET_H_ERRNO(&_nres, NETDB_INTERNAL);
-		return (-1);
-	}
-	return (res_nmkquery(&_nres, op, dname, class, type,
-			     data, datalen,
-			     newrr_in, buf, buflen));
-}
-
-#ifdef _LIBRESOLV
-int
-res_mkupdate(ns_updrec *rrecp_in, u_char *buf, int buflen) {
-	if (res_need_init() && res_init() == -1) {
-		RES_SET_H_ERRNO(&_nres, NETDB_INTERNAL);
-		return (-1);
-	}
-
-	return (res_nmkupdate(&_nres, rrecp_in, buf, buflen));
-}
-#endif
-
-int
-res_query(const char *name,	/* domain name */
-	  int class, int type,	/* class and type of query */
-	  u_char *answer,	/* buffer to put answer */
-	  int anslen)		/* size of answer buffer */
-{
-	if (res_need_init() && res_init() == -1) {
-		RES_SET_H_ERRNO(&_nres, NETDB_INTERNAL);
-		return (-1);
-	}
-	return (res_nquery(&_nres, name, class, type, answer, anslen));
-}
-
-void
-res_send_setqhook(res_send_qhook hook) {
-	_nres.qhook = hook;
-}
-
-void
-res_send_setrhook(res_send_rhook hook) {
-	_nres.rhook = hook;
-}
-
-int
-res_isourserver(const struct sockaddr_in *inp) {
-	return (res_ourserver_p(&_nres, (const struct sockaddr *)(const void *)inp));
-}
-
-int
-res_send(const u_char *buf, int buflen, u_char *ans, int anssiz) {
-	if (res_need_init() && res_init() == -1) {
-		/* errno should have been set by res_init() in this case. */
-		return (-1);
-	}
-
-	return (res_nsend(&_nres, buf, buflen, ans, anssiz));
-}
-
-#ifdef _LIBRESOLV
-int
-res_sendsigned(const u_char *buf, int buflen, ns_tsig_key *key,
-	       u_char *ans, int anssiz)
-{
-	if (res_need_init() && res_init() == -1) {
-		/* errno should have been set by res_init() in this case. */
-		return (-1);
-	}
-
-	return (res_nsendsigned(&_nres, buf, buflen, key, ans, anssiz));
-}
-#endif
-
-void
-res_close(void) {
-	res_nclose(&_nres);
-}
-
-#ifdef _LIBRESOLV
-int
-res_update(ns_updrec *rrecp_in) {
-	if (res_need_init() && res_init() == -1) {
-		RES_SET_H_ERRNO(&_nres, NETDB_INTERNAL);
-		return (-1);
-	}
-
-	return (res_nupdate(&_nres, rrecp_in, NULL));
-}
-#endif
-
-int
-res_search(const char *name,	/* domain name */
-	   int class, int type,	/* class and type of query */
-	   u_char *answer,	/* buffer to put answer */
-	   int anslen)		/* size of answer */
-{
-	if (res_need_init() && res_init() == -1) {
-		RES_SET_H_ERRNO(&_nres, NETDB_INTERNAL);
-		return (-1);
-	}
-
-	return (res_nsearch(&_nres, name, class, type, answer, anslen));
-}
-
-int
-res_querydomain(const char *name,
-		const char *domain,
-		int class, int type,	/* class and type of query */
-		u_char *answer,		/* buffer to put answer */
-		int anslen)		/* size of answer */
-{
-	if (res_need_init() && res_init() == -1) {
-		RES_SET_H_ERRNO(&_nres, NETDB_INTERNAL);
-		return (-1);
-	}
-
-	return (res_nquerydomain(&_nres, name, domain,
-				 class, type,
-				 answer, anslen));
-}
-
-int
-res_opt(int a, u_char *b, int c, int d)
-{
-	return res_nopt(&_nres, a, b, c, d);
-}
-
-const char *
-hostalias(const char *name) {
-	return NULL;
-}
-
-#ifdef ultrix
-int
-local_hostname_length(const char *hostname) {
-	int len_host, len_domain;
-
-	if (!*_nres.defdname)
-		res_init();
-	len_host = strlen(hostname);
-	len_domain = strlen(_nres.defdname);
-	if (len_host > len_domain &&
-	    !strcasecmp(hostname + len_host - len_domain, _nres.defdname) &&
-	    hostname[len_host - len_domain - 1] == '.')
-		return (len_host - len_domain - 1);
-	return (0);
-}
-#endif /*ultrix*/
-
-#endif
diff --git a/libc/netbsd/resolv/res_debug.c b/libc/netbsd/resolv/res_debug.c
deleted file mode 100644
index 84c6afc..0000000
--- a/libc/netbsd/resolv/res_debug.c
+++ /dev/null
@@ -1,1174 +0,0 @@
-/*	$NetBSD: res_debug.c,v 1.7 2004/11/07 02:25:01 christos Exp $	*/
-
-/*
- * Copyright (c) 1985
- *    The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.
- *
- * 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, and that
- * the name of Digital Equipment Corporation not be used in advertising or
- * publicity pertaining to distribution of the document or software without
- * specific, written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
- * CORPORATION 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.
- */
-
-/*
- * Portions Copyright (c) 1995 by International Business Machines, Inc.
- *
- * International Business Machines, Inc. (hereinafter called IBM) grants
- * permission under its copyrights to use, copy, modify, and distribute this
- * Software with or without fee, provided that the above copyright notice and
- * all paragraphs of this notice appear in all copies, and that the name of IBM
- * not be used in connection with the marketing of any product incorporating
- * the Software or modifications thereof, without specific, written prior
- * permission.
- *
- * To the extent it has a right to do so, IBM grants an immunity from suit
- * under its patents, if any, for the use, sale or manufacture of products to
- * the extent that such products are used for performing Domain Name System
- * dynamic updates in TCP/IP networks by means of the Software.  No immunity is
- * granted for any product per se or for any other function of any product.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
- * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
- * PARTICULAR PURPOSE.  IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
- * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
- * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
- * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
- */
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-#ifdef notdef
-static const char sccsid[] = "@(#)res_debug.c	8.1 (Berkeley) 6/4/93";
-static const char rcsid[] = "Id: res_debug.c,v 1.3.2.5.4.5 2004/07/28 20:16:46 marka Exp";
-#else
-__RCSID("$NetBSD: res_debug.c,v 1.7 2004/11/07 02:25:01 christos Exp $");
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/socket.h>
-
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include "arpa_nameser.h"
-
-#include <ctype.h>
-#include <errno.h>
-#include <math.h>
-#include <netdb.h>
-#include "resolv_private.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
-
-
-#ifdef SPRINTF_CHAR
-# define SPRINTF(x) strlen(sprintf/**/x)
-#else
-# define SPRINTF(x) sprintf x
-#endif
-
-static const char *precsize_ntoa(u_int32_t);
-
-extern const char * const _res_opcodes[];
-extern const char * const _res_sectioncodes[];
-
-#ifndef _LIBC
-/*
- * Print the current options.
- */
-void
-fp_resstat(const res_state statp, FILE *file) {
-	u_long mask;
-
-	fprintf(file, ";; res options:");
-	for (mask = 1;  mask != 0U;  mask <<= 1)
-		if (statp->options & mask)
-			fprintf(file, " %s", p_option(mask));
-	putc('\n', file);
-}
-#endif
-
-static void
-do_section(const res_state statp,
-	   ns_msg *handle, ns_sect section,
-	   int pflag, FILE *file)
-{
-	int n, sflag, rrnum;
-	int buflen = 2048;
-	char *buf;
-	ns_opcode opcode;
-	ns_rr rr;
-
-	/*
-	 * Print answer records.
-	 */
-	sflag = (statp->pfcode & pflag);
-	if (statp->pfcode && !sflag)
-		return;
-
-	buf = malloc((size_t)buflen);
-	if (buf == NULL) {
-		fprintf(file, ";; memory allocation failure\n");
-		return;
-	}
-
-	opcode = (ns_opcode) ns_msg_getflag(*handle, ns_f_opcode);
-	rrnum = 0;
-	for (;;) {
-		if (ns_parserr(handle, section, rrnum, &rr)) {
-			if (errno != ENODEV)
-				fprintf(file, ";; ns_parserr: %s\n",
-					strerror(errno));
-			else if (rrnum > 0 && sflag != 0 &&
-				 (statp->pfcode & RES_PRF_HEAD1))
-				putc('\n', file);
-			goto cleanup;
-		}
-		if (rrnum == 0 && sflag != 0 && (statp->pfcode & RES_PRF_HEAD1))
-			fprintf(file, ";; %s SECTION:\n",
-				p_section(section, opcode));
-		if (section == ns_s_qd)
-			fprintf(file, ";;\t%s, type = %s, class = %s\n",
-				ns_rr_name(rr),
-				p_type(ns_rr_type(rr)),
-				p_class(ns_rr_class(rr)));
-		else if (section == ns_s_ar && ns_rr_type(rr) == ns_t_opt) {
-			u_int32_t ttl = ns_rr_ttl(rr);
-			fprintf(file,
-				"; EDNS: version: %u, udp=%u, flags=%04x\n",
-				(ttl>>16)&0xff, ns_rr_class(rr), ttl&0xffff);
-		} else {
-			n = ns_sprintrr(handle, &rr, NULL, NULL,
-					buf, (u_int)buflen);
-			if (n < 0) {
-				if (errno == ENOSPC) {
-					free(buf);
-					buf = NULL;
-					if (buflen < 131072)
-						buf = malloc((size_t)(buflen += 1024));
-					if (buf == NULL) {
-						fprintf(file,
-				              ";; memory allocation failure\n");
-					      return;
-					}
-					continue;
-				}
-				fprintf(file, ";; ns_sprintrr: %s\n",
-					strerror(errno));
-				goto cleanup;
-			}
-			fputs(buf, file);
-			fputc('\n', file);
-		}
-		rrnum++;
-	}
- cleanup:
-	if (buf != NULL)
-		free(buf);
-}
-
-/*
- * Print the contents of a query.
- * This is intended to be primarily a debugging routine.
- */
-void
-res_pquery(const res_state statp, const u_char *msg, int len, FILE *file) {
-	ns_msg handle;
-	int qdcount, ancount, nscount, arcount;
-	u_int opcode, rcode, id;
-
-	if (ns_initparse(msg, len, &handle) < 0) {
-		fprintf(file, ";; ns_initparse: %s\n", strerror(errno));
-		return;
-	}
-	opcode = ns_msg_getflag(handle, ns_f_opcode);
-	rcode = ns_msg_getflag(handle, ns_f_rcode);
-	id = ns_msg_id(handle);
-	qdcount = ns_msg_count(handle, ns_s_qd);
-	ancount = ns_msg_count(handle, ns_s_an);
-	nscount = ns_msg_count(handle, ns_s_ns);
-	arcount = ns_msg_count(handle, ns_s_ar);
-
-	/*
-	 * Print header fields.
-	 */
-	if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEADX) || rcode)
-		fprintf(file,
-			";; ->>HEADER<<- opcode: %s, status: %s, id: %d\n",
-			_res_opcodes[opcode], p_rcode((int)rcode), id);
-	if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEADX))
-		putc(';', file);
-	if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEAD2)) {
-		fprintf(file, "; flags:");
-		if (ns_msg_getflag(handle, ns_f_qr))
-			fprintf(file, " qr");
-		if (ns_msg_getflag(handle, ns_f_aa))
-			fprintf(file, " aa");
-		if (ns_msg_getflag(handle, ns_f_tc))
-			fprintf(file, " tc");
-		if (ns_msg_getflag(handle, ns_f_rd))
-			fprintf(file, " rd");
-		if (ns_msg_getflag(handle, ns_f_ra))
-			fprintf(file, " ra");
-		if (ns_msg_getflag(handle, ns_f_z))
-			fprintf(file, " ??");
-		if (ns_msg_getflag(handle, ns_f_ad))
-			fprintf(file, " ad");
-		if (ns_msg_getflag(handle, ns_f_cd))
-			fprintf(file, " cd");
-	}
-	if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEAD1)) {
-		fprintf(file, "; %s: %d",
-			p_section(ns_s_qd, (int)opcode), qdcount);
-		fprintf(file, ", %s: %d",
-			p_section(ns_s_an, (int)opcode), ancount);
-		fprintf(file, ", %s: %d",
-			p_section(ns_s_ns, (int)opcode), nscount);
-		fprintf(file, ", %s: %d",
-			p_section(ns_s_ar, (int)opcode), arcount);
-	}
-	if ((!statp->pfcode) || (statp->pfcode &
-		(RES_PRF_HEADX | RES_PRF_HEAD2 | RES_PRF_HEAD1))) {
-		putc('\n',file);
-	}
-	/*
-	 * Print the various sections.
-	 */
-	do_section(statp, &handle, ns_s_qd, RES_PRF_QUES, file);
-	do_section(statp, &handle, ns_s_an, RES_PRF_ANS, file);
-	do_section(statp, &handle, ns_s_ns, RES_PRF_AUTH, file);
-	do_section(statp, &handle, ns_s_ar, RES_PRF_ADD, file);
-	if (qdcount == 0 && ancount == 0 &&
-	    nscount == 0 && arcount == 0)
-		putc('\n', file);
-}
-
-const u_char *
-p_cdnname(const u_char *cp, const u_char *msg, int len, FILE *file) {
-	char name[MAXDNAME];
-	int n;
-
-	if ((n = dn_expand(msg, msg + len, cp, name, sizeof name)) < 0)
-		return (NULL);
-	if (name[0] == '\0')
-		putc('.', file);
-	else
-		fputs(name, file);
-	return (cp + n);
-}
-
-const u_char *
-p_cdname(const u_char *cp, const u_char *msg, FILE *file) {
-	return (p_cdnname(cp, msg, PACKETSZ, file));
-}
-
-/* Return a fully-qualified domain name from a compressed name (with
-   length supplied).  */
-
-const u_char *
-p_fqnname(cp, msg, msglen, name, namelen)
-	const u_char *cp, *msg;
-	int msglen;
-	char *name;
-	int namelen;
-{
-	int n, newlen;
-
-	if ((n = dn_expand(msg, cp + msglen, cp, name, namelen)) < 0)
-		return (NULL);
-	newlen = strlen(name);
-	if (newlen == 0 || name[newlen - 1] != '.') {
-		if (newlen + 1 >= namelen)	/* Lack space for final dot */
-			return (NULL);
-		else
-			strcpy(name + newlen, ".");
-	}
-	return (cp + n);
-}
-
-/* XXX:	the rest of these functions need to become length-limited, too. */
-
-const u_char *
-p_fqname(const u_char *cp, const u_char *msg, FILE *file) {
-	char name[MAXDNAME];
-	const u_char *n;
-
-	n = p_fqnname(cp, msg, MAXCDNAME, name, sizeof name);
-	if (n == NULL)
-		return (NULL);
-	fputs(name, file);
-	return (n);
-}
-
-/*
- * Names of RR classes and qclasses.  Classes and qclasses are the same, except
- * that C_ANY is a qclass but not a class.  (You can ask for records of class
- * C_ANY, but you can't have any records of that class in the database.)
- */
-const struct res_sym __p_class_syms[] = {
-	{C_IN,		"IN",		(char *)0},
-	{C_CHAOS,	"CH",		(char *)0},
-	{C_CHAOS,	"CHAOS",	(char *)0},
-	{C_HS,		"HS",		(char *)0},
-	{C_HS,		"HESIOD",	(char *)0},
-	{C_ANY,		"ANY",		(char *)0},
-	{C_NONE,	"NONE",		(char *)0},
-	{C_IN, 		(char *)0,	(char *)0}
-};
-
-/*
- * Names of message sections.
- */
-const struct res_sym __p_default_section_syms[] = {
-	{ns_s_qd,	"QUERY",	(char *)0},
-	{ns_s_an,	"ANSWER",	(char *)0},
-	{ns_s_ns,	"AUTHORITY",	(char *)0},
-	{ns_s_ar,	"ADDITIONAL",	(char *)0},
-	{0,             (char *)0,	(char *)0}
-};
-
-const struct res_sym __p_update_section_syms[] = {
-	{S_ZONE,	"ZONE",		(char *)0},
-	{S_PREREQ,	"PREREQUISITE",	(char *)0},
-	{S_UPDATE,	"UPDATE",	(char *)0},
-	{S_ADDT,	"ADDITIONAL",	(char *)0},
-	{0,             (char *)0,	(char *)0}
-};
-
-const struct res_sym __p_key_syms[] = {
-	{NS_ALG_MD5RSA,		"RSA",		"RSA KEY with MD5 hash"},
-	{NS_ALG_DH,		"DH",		"Diffie Hellman"},
-	{NS_ALG_DSA,		"DSA",		"Digital Signature Algorithm"},
-	{NS_ALG_EXPIRE_ONLY,	"EXPIREONLY",	"No algorithm"},
-	{NS_ALG_PRIVATE_OID,	"PRIVATE",	"Algorithm obtained from OID"},
-	{0,			NULL,		NULL}
-};
-
-const struct res_sym __p_cert_syms[] = {
-	{cert_t_pkix,	"PKIX",		"PKIX (X.509v3) Certificate"},
-	{cert_t_spki,	"SPKI",		"SPKI certificate"},
-	{cert_t_pgp,	"PGP",		"PGP certificate"},
-	{cert_t_url,	"URL",		"URL Private"},
-	{cert_t_oid,	"OID",		"OID Private"},
-	{0,		NULL,		NULL}
-};
-
-/*
- * Names of RR types and qtypes.  Types and qtypes are the same, except
- * that T_ANY is a qtype but not a type.  (You can ask for records of type
- * T_ANY, but you can't have any records of that type in the database.)
- */
-const struct res_sym __p_type_syms[] = {
-	{ns_t_a,	"A",		"address"},
-	{ns_t_ns,	"NS",		"name server"},
-	{ns_t_md,	"MD",		"mail destination (deprecated)"},
-	{ns_t_mf,	"MF",		"mail forwarder (deprecated)"},
-	{ns_t_cname,	"CNAME",	"canonical name"},
-	{ns_t_soa,	"SOA",		"start of authority"},
-	{ns_t_mb,	"MB",		"mailbox"},
-	{ns_t_mg,	"MG",		"mail group member"},
-	{ns_t_mr,	"MR",		"mail rename"},
-	{ns_t_null,	"NULL",		"null"},
-	{ns_t_wks,	"WKS",		"well-known service (deprecated)"},
-	{ns_t_ptr,	"PTR",		"domain name pointer"},
-	{ns_t_hinfo,	"HINFO",	"host information"},
-	{ns_t_minfo,	"MINFO",	"mailbox information"},
-	{ns_t_mx,	"MX",		"mail exchanger"},
-	{ns_t_txt,	"TXT",		"text"},
-	{ns_t_rp,	"RP",		"responsible person"},
-	{ns_t_afsdb,	"AFSDB",	"DCE or AFS server"},
-	{ns_t_x25,	"X25",		"X25 address"},
-	{ns_t_isdn,	"ISDN",		"ISDN address"},
-	{ns_t_rt,	"RT",		"router"},
-	{ns_t_nsap,	"NSAP",		"nsap address"},
-	{ns_t_nsap_ptr,	"NSAP_PTR",	"domain name pointer"},
-	{ns_t_sig,	"SIG",		"signature"},
-	{ns_t_key,	"KEY",		"key"},
-	{ns_t_px,	"PX",		"mapping information"},
-	{ns_t_gpos,	"GPOS",		"geographical position (withdrawn)"},
-	{ns_t_aaaa,	"AAAA",		"IPv6 address"},
-	{ns_t_loc,	"LOC",		"location"},
-	{ns_t_nxt,	"NXT",		"next valid name (unimplemented)"},
-	{ns_t_eid,	"EID",		"endpoint identifier (unimplemented)"},
-	{ns_t_nimloc,	"NIMLOC",	"NIMROD locator (unimplemented)"},
-	{ns_t_srv,	"SRV",		"server selection"},
-	{ns_t_atma,	"ATMA",		"ATM address (unimplemented)"},
-	{ns_t_tkey,	"TKEY",		"tkey"},
-	{ns_t_tsig,	"TSIG",		"transaction signature"},
-	{ns_t_ixfr,	"IXFR",		"incremental zone transfer"},
-	{ns_t_axfr,	"AXFR",		"zone transfer"},
-	{ns_t_zxfr,	"ZXFR",		"compressed zone transfer"},
-	{ns_t_mailb,	"MAILB",	"mailbox-related data (deprecated)"},
-	{ns_t_maila,	"MAILA",	"mail agent (deprecated)"},
-	{ns_t_naptr,	"NAPTR",	"URN Naming Authority"},
-	{ns_t_kx,	"KX",		"Key Exchange"},
-	{ns_t_cert,	"CERT",		"Certificate"},
-	{ns_t_a6,	"A6",		"IPv6 Address"},
-	{ns_t_dname,	"DNAME",	"dname"},
-	{ns_t_sink,	"SINK",		"Kitchen Sink (experimental)"},
-	{ns_t_opt,	"OPT",		"EDNS Options"},
-	{ns_t_any,	"ANY",		"\"any\""},
-	{0, 		NULL,		NULL}
-};
-
-/*
- * Names of DNS rcodes.
- */
-const struct res_sym __p_rcode_syms[] = {
-	{ns_r_noerror,	"NOERROR",		"no error"},
-	{ns_r_formerr,	"FORMERR",		"format error"},
-	{ns_r_servfail,	"SERVFAIL",		"server failed"},
-	{ns_r_nxdomain,	"NXDOMAIN",		"no such domain name"},
-	{ns_r_notimpl,	"NOTIMP",		"not implemented"},
-	{ns_r_refused,	"REFUSED",		"refused"},
-	{ns_r_yxdomain,	"YXDOMAIN",		"domain name exists"},
-	{ns_r_yxrrset,	"YXRRSET",		"rrset exists"},
-	{ns_r_nxrrset,	"NXRRSET",		"rrset doesn't exist"},
-	{ns_r_notauth,	"NOTAUTH",		"not authoritative"},
-	{ns_r_notzone,	"NOTZONE",		"Not in zone"},
-	{ns_r_max,	"",			""},
-	{ns_r_badsig,	"BADSIG",		"bad signature"},
-	{ns_r_badkey,	"BADKEY",		"bad key"},
-	{ns_r_badtime,	"BADTIME",		"bad time"},
-	{0, 		NULL,			NULL}
-};
-
-int
-sym_ston(const struct res_sym *syms, const char *name, int *success) {
-	for (; syms->name != 0; syms++) {
-		if (strcasecmp (name, syms->name) == 0) {
-			if (success)
-				*success = 1;
-			return (syms->number);
-		}
-	}
-	if (success)
-		*success = 0;
-	return (syms->number);		/* The default value. */
-}
-
-const char *
-sym_ntos(const struct res_sym *syms, int number, int *success) {
-	static char unname[20];
-
-	for (; syms->name != 0; syms++) {
-		if (number == syms->number) {
-			if (success)
-				*success = 1;
-			return (syms->name);
-		}
-	}
-
-	sprintf(unname, "%d", number);		/* XXX nonreentrant */
-	if (success)
-		*success = 0;
-	return (unname);
-}
-
-const char *
-sym_ntop(const struct res_sym *syms, int number, int *success) {
-	static char unname[20];
-
-	for (; syms->name != 0; syms++) {
-		if (number == syms->number) {
-			if (success)
-				*success = 1;
-			return (syms->humanname);
-		}
-	}
-	sprintf(unname, "%d", number);		/* XXX nonreentrant */
-	if (success)
-		*success = 0;
-	return (unname);
-}
-
-/*
- * Return a string for the type.
- */
-const char *
-p_type(int type) {
-	int success;
-	const char *result;
-	static char typebuf[20];
-
-	result = sym_ntos(__p_type_syms, type, &success);
-	if (success)
-		return (result);
-	if (type < 0 || type > 0xffff)
-		return ("BADTYPE");
-	sprintf(typebuf, "TYPE%d", type);
-	return (typebuf);
-}
-
-/*
- * Return a string for the type.
- */
-const char *
-p_section(int section, int opcode) {
-	const struct res_sym *symbols;
-
-	switch (opcode) {
-	case ns_o_update:
-		symbols = __p_update_section_syms;
-		break;
-	default:
-		symbols = __p_default_section_syms;
-		break;
-	}
-	return (sym_ntos(symbols, section, (int *)0));
-}
-
-/*
- * Return a mnemonic for class.
- */
-const char *
-p_class(int class) {
-	int success;
-	const char *result;
-	static char classbuf[20];
-
-	result = sym_ntos(__p_class_syms, class, &success);
-	if (success)
-		return (result);
-	if (class < 0 || class > 0xffff)
-		return ("BADCLASS");
-	sprintf(classbuf, "CLASS%d", class);
-	return (classbuf);
-}
-
-/*
- * Return a mnemonic for an option
- */
-const char *
-p_option(u_long option) {
-	static char nbuf[40];
-
-	switch (option) {
-	case RES_INIT:		return "init";
-	case RES_DEBUG:		return "debug";
-	case RES_AAONLY:	return "aaonly(unimpl)";
-	case RES_USEVC:		return "usevc";
-	case RES_PRIMARY:	return "primry(unimpl)";
-	case RES_IGNTC:		return "igntc";
-	case RES_RECURSE:	return "recurs";
-	case RES_DEFNAMES:	return "defnam";
-	case RES_STAYOPEN:	return "styopn";
-	case RES_DNSRCH:	return "dnsrch";
-	case RES_INSECURE1:	return "insecure1";
-	case RES_INSECURE2:	return "insecure2";
-	case RES_NOALIASES:	return "noaliases";
-	case RES_USE_INET6:	return "inet6";
-#ifdef RES_USE_EDNS0	/* KAME extension */
-	case RES_USE_EDNS0:	return "edns0";
-#endif
-#ifdef RES_USE_DNAME
-	case RES_USE_DNAME:	return "dname";
-#endif
-#ifdef RES_USE_DNSSEC
-	case RES_USE_DNSSEC:	return "dnssec";
-#endif
-#ifdef RES_NOTLDQUERY
-	case RES_NOTLDQUERY:	return "no-tld-query";
-#endif
-#ifdef RES_NO_NIBBLE2
-	case RES_NO_NIBBLE2:	return "no-nibble2";
-#endif
-				/* XXX nonreentrant */
-	default:		sprintf(nbuf, "?0x%lx?", (u_long)option);
-				return (nbuf);
-	}
-}
-
-/*
- * Return a mnemonic for a time to live.
- */
-const char *
-p_time(u_int32_t value) {
-	static char nbuf[40];		/* XXX nonreentrant */
-
-	if (ns_format_ttl((u_long)value, nbuf, sizeof nbuf) < 0)
-		sprintf(nbuf, "%u", value);
-	return (nbuf);
-}
-
-/*
- * Return a string for the rcode.
- */
-const char *
-p_rcode(int rcode) {
-	return (sym_ntos(__p_rcode_syms, rcode, (int *)0));
-}
-
-/*
- * Return a string for a res_sockaddr_union.
- */
-const char *
-p_sockun(union res_sockaddr_union u, char *buf, size_t size) {
-	char ret[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:123.123.123.123"];
-
-	switch (u.sin.sin_family) {
-	case AF_INET:
-		inet_ntop(AF_INET, &u.sin.sin_addr, ret, sizeof ret);
-		break;
-#ifdef HAS_INET6_STRUCTS
-	case AF_INET6:
-		inet_ntop(AF_INET6, &u.sin6.sin6_addr, ret, sizeof ret);
-		break;
-#endif
-	default:
-		sprintf(ret, "[af%d]", u.sin.sin_family);
-		break;
-	}
-	if (size > 0U) {
-		strncpy(buf, ret, size - 1);
-		buf[size - 1] = '0';
-	}
-	return (buf);
-}
-
-/*
- * routines to convert between on-the-wire RR format and zone file format.
- * Does not contain conversion to/from decimal degrees; divide or multiply
- * by 60*60*1000 for that.
- */
-
-static const unsigned int poweroften[10] = {1, 10, 100, 1000, 10000, 100000,
-				      1000000,10000000,100000000,1000000000};
-
-/* takes an XeY precision/size value, returns a string representation. */
-static const char *
-precsize_ntoa(prec)
-	u_int32_t prec;
-{
-	static char retbuf[sizeof "90000000.00"];	/* XXX nonreentrant */
-	unsigned long val;
-	int mantissa, exponent;
-
-	mantissa = (int)((prec >> 4) & 0x0f) % 10;
-	exponent = (int)((prec >> 0) & 0x0f) % 10;
-
-	val = mantissa * poweroften[exponent];
-
-	(void) sprintf(retbuf, "%lu.%.2lu", val/100, val%100);
-	return (retbuf);
-}
-
-/* converts ascii size/precision X * 10**Y(cm) to 0xXY.  moves pointer. */
-static u_int8_t
-precsize_aton(const char **strptr) {
-	unsigned int mval = 0, cmval = 0;
-	u_int8_t retval = 0;
-	const char *cp;
-	int exponent;
-	int mantissa;
-
-	cp = *strptr;
-
-	while (isdigit((unsigned char)*cp))
-		mval = mval * 10 + (*cp++ - '0');
-
-	if (*cp == '.') {		/* centimeters */
-		cp++;
-		if (isdigit((unsigned char)*cp)) {
-			cmval = (*cp++ - '0') * 10;
-			if (isdigit((unsigned char)*cp)) {
-				cmval += (*cp++ - '0');
-			}
-		}
-	}
-	cmval = (mval * 100) + cmval;
-
-	for (exponent = 0; exponent < 9; exponent++)
-		if (cmval < poweroften[exponent+1])
-			break;
-
-	mantissa = cmval / poweroften[exponent];
-	if (mantissa > 9)
-		mantissa = 9;
-
-	retval = (mantissa << 4) | exponent;
-
-	*strptr = cp;
-
-	return (retval);
-}
-
-/* converts ascii lat/lon to unsigned encoded 32-bit number.  moves pointer. */
-static u_int32_t
-latlon2ul(const char **latlonstrptr, int *which) {
-	const char *cp;
-	u_int32_t retval;
-	int deg = 0, min = 0, secs = 0, secsfrac = 0;
-
-	cp = *latlonstrptr;
-
-	while (isdigit((unsigned char)*cp))
-		deg = deg * 10 + (*cp++ - '0');
-
-	while (isspace((unsigned char)*cp))
-		cp++;
-
-	if (!(isdigit((unsigned char)*cp)))
-		goto fndhemi;
-
-	while (isdigit((unsigned char)*cp))
-		min = min * 10 + (*cp++ - '0');
-
-	while (isspace((unsigned char)*cp))
-		cp++;
-
-	if (!(isdigit((unsigned char)*cp)))
-		goto fndhemi;
-
-	while (isdigit((unsigned char)*cp))
-		secs = secs * 10 + (*cp++ - '0');
-
-	if (*cp == '.') {		/* decimal seconds */
-		cp++;
-		if (isdigit((unsigned char)*cp)) {
-			secsfrac = (*cp++ - '0') * 100;
-			if (isdigit((unsigned char)*cp)) {
-				secsfrac += (*cp++ - '0') * 10;
-				if (isdigit((unsigned char)*cp)) {
-					secsfrac += (*cp++ - '0');
-				}
-			}
-		}
-	}
-
-	while (!isspace((unsigned char)*cp))	/* if any trailing garbage */
-		cp++;
-
-	while (isspace((unsigned char)*cp))
-		cp++;
-
- fndhemi:
-	switch (*cp) {
-	case 'N': case 'n':
-	case 'E': case 'e':
-		retval = ((unsigned)1<<31)
-			+ (((((deg * 60) + min) * 60) + secs) * 1000)
-			+ secsfrac;
-		break;
-	case 'S': case 's':
-	case 'W': case 'w':
-		retval = ((unsigned)1<<31)
-			- (((((deg * 60) + min) * 60) + secs) * 1000)
-			- secsfrac;
-		break;
-	default:
-		retval = 0;	/* invalid value -- indicates error */
-		break;
-	}
-
-	switch (*cp) {
-	case 'N': case 'n':
-	case 'S': case 's':
-		*which = 1;	/* latitude */
-		break;
-	case 'E': case 'e':
-	case 'W': case 'w':
-		*which = 2;	/* longitude */
-		break;
-	default:
-		*which = 0;	/* error */
-		break;
-	}
-
-	cp++;			/* skip the hemisphere */
-
-	while (!isspace((unsigned char)*cp))	/* if any trailing garbage */
-		cp++;
-
-	while (isspace((unsigned char)*cp))	/* move to next field */
-		cp++;
-
-	*latlonstrptr = cp;
-
-	return (retval);
-}
-
-/* converts a zone file representation in a string to an RDATA on-the-wire
- * representation. */
-int
-loc_aton(ascii, binary)
-	const char *ascii;
-	u_char *binary;
-{
-	const char *cp, *maxcp;
-	u_char *bcp;
-
-	u_int32_t latit = 0, longit = 0, alt = 0;
-	u_int32_t lltemp1 = 0, lltemp2 = 0;
-	int altmeters = 0, altfrac = 0, altsign = 1;
-	u_int8_t hp = 0x16;	/* default = 1e6 cm = 10000.00m = 10km */
-	u_int8_t vp = 0x13;	/* default = 1e3 cm = 10.00m */
-	u_int8_t siz = 0x12;	/* default = 1e2 cm = 1.00m */
-	int which1 = 0, which2 = 0;
-
-	cp = ascii;
-	maxcp = cp + strlen(ascii);
-
-	lltemp1 = latlon2ul(&cp, &which1);
-
-	lltemp2 = latlon2ul(&cp, &which2);
-
-	switch (which1 + which2) {
-	case 3:			/* 1 + 2, the only valid combination */
-		if ((which1 == 1) && (which2 == 2)) { /* normal case */
-			latit = lltemp1;
-			longit = lltemp2;
-		} else if ((which1 == 2) && (which2 == 1)) { /* reversed */
-			longit = lltemp1;
-			latit = lltemp2;
-		} else {	/* some kind of brokenness */
-			return (0);
-		}
-		break;
-	default:		/* we didn't get one of each */
-		return (0);
-	}
-
-	/* altitude */
-	if (*cp == '-') {
-		altsign = -1;
-		cp++;
-	}
-
-	if (*cp == '+')
-		cp++;
-
-	while (isdigit((unsigned char)*cp))
-		altmeters = altmeters * 10 + (*cp++ - '0');
-
-	if (*cp == '.') {		/* decimal meters */
-		cp++;
-		if (isdigit((unsigned char)*cp)) {
-			altfrac = (*cp++ - '0') * 10;
-			if (isdigit((unsigned char)*cp)) {
-				altfrac += (*cp++ - '0');
-			}
-		}
-	}
-
-	alt = (10000000 + (altsign * (altmeters * 100 + altfrac)));
-
-	while (!isspace((unsigned char)*cp) && (cp < maxcp)) /* if trailing garbage or m */
-		cp++;
-
-	while (isspace((unsigned char)*cp) && (cp < maxcp))
-		cp++;
-
-	if (cp >= maxcp)
-		goto defaults;
-
-	siz = precsize_aton(&cp);
-
-	while (!isspace((unsigned char)*cp) && (cp < maxcp))	/* if trailing garbage or m */
-		cp++;
-
-	while (isspace((unsigned char)*cp) && (cp < maxcp))
-		cp++;
-
-	if (cp >= maxcp)
-		goto defaults;
-
-	hp = precsize_aton(&cp);
-
-	while (!isspace((unsigned char)*cp) && (cp < maxcp))	/* if trailing garbage or m */
-		cp++;
-
-	while (isspace((unsigned char)*cp) && (cp < maxcp))
-		cp++;
-
-	if (cp >= maxcp)
-		goto defaults;
-
-	vp = precsize_aton(&cp);
-
- defaults:
-
-	bcp = binary;
-	*bcp++ = (u_int8_t) 0;	/* version byte */
-	*bcp++ = siz;
-	*bcp++ = hp;
-	*bcp++ = vp;
-	PUTLONG(latit,bcp);
-	PUTLONG(longit,bcp);
-	PUTLONG(alt,bcp);
-
-	return (16);		/* size of RR in octets */
-}
-
-/* takes an on-the-wire LOC RR and formats it in a human readable format. */
-const char *
-loc_ntoa(binary, ascii)
-	const u_char *binary;
-	char *ascii;
-{
-	static const char *error = "?";
-	static char tmpbuf[sizeof
-"1000 60 60.000 N 1000 60 60.000 W -12345678.00m 90000000.00m 90000000.00m 90000000.00m"];
-	const u_char *cp = binary;
-
-	int latdeg, latmin, latsec, latsecfrac;
-	int longdeg, longmin, longsec, longsecfrac;
-	char northsouth, eastwest;
-	const char *altsign;
-	int altmeters, altfrac;
-
-	const u_int32_t referencealt = 100000 * 100;
-
-	int32_t latval, longval, altval;
-	u_int32_t templ;
-	u_int8_t sizeval, hpval, vpval, versionval;
-
-	char *sizestr, *hpstr, *vpstr;
-
-	versionval = *cp++;
-
-	if (ascii == NULL)
-		ascii = tmpbuf;
-
-	if (versionval) {
-		(void) sprintf(ascii, "; error: unknown LOC RR version");
-		return (ascii);
-	}
-
-	sizeval = *cp++;
-
-	hpval = *cp++;
-	vpval = *cp++;
-
-	GETLONG(templ, cp);
-	latval = (templ - ((unsigned)1<<31));
-
-	GETLONG(templ, cp);
-	longval = (templ - ((unsigned)1<<31));
-
-	GETLONG(templ, cp);
-	if (templ < referencealt) { /* below WGS 84 spheroid */
-		altval = referencealt - templ;
-		altsign = "-";
-	} else {
-		altval = templ - referencealt;
-		altsign = "";
-	}
-
-	if (latval < 0) {
-		northsouth = 'S';
-		latval = -latval;
-	} else
-		northsouth = 'N';
-
-	latsecfrac = latval % 1000;
-	latval = latval / 1000;
-	latsec = latval % 60;
-	latval = latval / 60;
-	latmin = latval % 60;
-	latval = latval / 60;
-	latdeg = latval;
-
-	if (longval < 0) {
-		eastwest = 'W';
-		longval = -longval;
-	} else
-		eastwest = 'E';
-
-	longsecfrac = longval % 1000;
-	longval = longval / 1000;
-	longsec = longval % 60;
-	longval = longval / 60;
-	longmin = longval % 60;
-	longval = longval / 60;
-	longdeg = longval;
-
-	altfrac = altval % 100;
-	altmeters = (altval / 100);
-
-	sizestr = strdup(precsize_ntoa((u_int32_t)sizeval));
-	hpstr = strdup(precsize_ntoa((u_int32_t)hpval));
-	vpstr = strdup(precsize_ntoa((u_int32_t)vpval));
-
-	sprintf(ascii,
-	    "%d %.2d %.2d.%.3d %c %d %.2d %.2d.%.3d %c %s%d.%.2dm %sm %sm %sm",
-		latdeg, latmin, latsec, latsecfrac, northsouth,
-		longdeg, longmin, longsec, longsecfrac, eastwest,
-		altsign, altmeters, altfrac,
-		(sizestr != NULL) ? sizestr : error,
-		(hpstr != NULL) ? hpstr : error,
-		(vpstr != NULL) ? vpstr : error);
-
-	if (sizestr != NULL)
-		free(sizestr);
-	if (hpstr != NULL)
-		free(hpstr);
-	if (vpstr != NULL)
-		free(vpstr);
-
-	return (ascii);
-}
-
-
-/* Return the number of DNS hierarchy levels in the name. */
-int
-dn_count_labels(const char *name) {
-	int i, len, count;
-
-	len = strlen(name);
-	for (i = 0, count = 0; i < len; i++) {
-		/* XXX need to check for \. or use named's nlabels(). */
-		if (name[i] == '.')
-			count++;
-	}
-
-	/* don't count initial wildcard */
-	if (name[0] == '*')
-		if (count)
-			count--;
-
-	/* don't count the null label for root. */
-	/* if terminating '.' not found, must adjust */
-	/* count to include last label */
-	if (len > 0 && name[len-1] != '.')
-		count++;
-	return (count);
-}
-
-
-/*
- * Make dates expressed in seconds-since-Jan-1-1970 easy to read.
- * SIG records are required to be printed like this, by the Secure DNS RFC.
- */
-char *
-p_secstodate (u_long secs) {
-	/* XXX nonreentrant */
-	static char output[15];		/* YYYYMMDDHHMMSS and null */
-	time_t myclock = secs;
-	struct tm *mytime;
-#ifdef HAVE_TIME_R
-	struct tm res;
-
-	mytime = gmtime_r(&myclock, &res);
-#else
-	mytime = gmtime(&myclock);
-#endif
-	mytime->tm_year += 1900;
-	mytime->tm_mon += 1;
-	sprintf(output, "%04d%02d%02d%02d%02d%02d",
-		mytime->tm_year, mytime->tm_mon, mytime->tm_mday,
-		mytime->tm_hour, mytime->tm_min, mytime->tm_sec);
-	return (output);
-}
-
-u_int16_t
-res_nametoclass(const char *buf, int *successp) {
-	unsigned long result;
-	char *endptr;
-	int success;
-
-	result = sym_ston(__p_class_syms, buf, &success);
-	if (success)
-		goto done;
-
-	if (strncasecmp(buf, "CLASS", 5) != 0 ||
-	    !isdigit((unsigned char)buf[5]))
-		goto done;
-	errno = 0;
-	result = strtoul(buf + 5, &endptr, 10);
-	if (errno == 0 && *endptr == '\0' && result <= 0xffffU)
-		success = 1;
- done:
-	if (successp)
-		*successp = success;
-	return (u_int16_t)(result);
-}
-
-u_int16_t
-res_nametotype(const char *buf, int *successp) {
-	unsigned long result;
-	char *endptr;
-	int success;
-
-	result = sym_ston(__p_type_syms, buf, &success);
-	if (success)
-		goto done;
-
-	if (strncasecmp(buf, "type", 4) != 0 ||
-	    !isdigit((unsigned char)buf[4]))
-		goto done;
-	errno = 0;
-	result = strtoul(buf + 4, &endptr, 10);
-	if (errno == 0 && *endptr == '\0' && result <= 0xffffU)
-		success = 1;
- done:
-	if (successp)
-		*successp = success;
-	return (u_int16_t)(result);
-}
diff --git a/libc/netbsd/resolv/res_debug.h b/libc/netbsd/resolv/res_debug.h
deleted file mode 100644
index 4341c5a..0000000
--- a/libc/netbsd/resolv/res_debug.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/*	$NetBSD: res_debug.h,v 1.1.1.1 2004/05/20 17:18:55 christos Exp $	*/
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * Copyright (c) 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#ifndef _RES_DEBUG_H_
-#define _RES_DEBUG_H_
-
-#ifndef DEBUG
-#   define Dprint(cond, args) /*empty*/
-#   define DprintQ(cond, args, query, size) /*empty*/
-#   define Aerror(statp, file, string, error, address) /*empty*/
-#   define Perror(statp, file, string, error) /*empty*/
-#else
-#   define Dprint(cond, args) if (cond) {fprintf args;} else {}
-#   define DprintQ(cond, args, query, size) if (cond) {\
-			fprintf args;\
-			res_pquery(statp, query, size, stdout);\
-		} else {}
-#endif
-
-#endif /* _RES_DEBUG_H_ */ 
diff --git a/libc/netbsd/resolv/res_init.c b/libc/netbsd/resolv/res_init.c
deleted file mode 100644
index fc0272c..0000000
--- a/libc/netbsd/resolv/res_init.c
+++ /dev/null
@@ -1,863 +0,0 @@
-/*	$NetBSD: res_init.c,v 1.8 2006/03/19 03:10:08 christos Exp $	*/
-
-/*
- * Copyright (c) 1985, 1989, 1993
- *    The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.
- *
- * 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, and that
- * the name of Digital Equipment Corporation not be used in advertising or
- * publicity pertaining to distribution of the document or software without
- * specific, written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
- * CORPORATION 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.
- */
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-#ifdef notdef
-static const char sccsid[] = "@(#)res_init.c	8.1 (Berkeley) 6/7/93";
-static const char rcsid[] = "Id: res_init.c,v 1.9.2.5.4.2 2004/03/16 12:34:18 marka Exp";
-#else
-__RCSID("$NetBSD: res_init.c,v 1.8 2006/03/19 03:10:08 christos Exp $");
-#endif
-#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 <ctype.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <netdb.h>
-
-#ifdef ANDROID_CHANGES
-#include <sys/system_properties.h>
-#endif /* ANDROID_CHANGES */
-
-#ifndef MIN
-#define	MIN(x,y)	((x)<(y)?(x):(y))
-#endif
-
-/* ensure that sockaddr_in6 and IN6ADDR_ANY_INIT are declared / defined */
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#define MAX_DNS_PROPERTIES 8
-#define DNS_PROP_NAME_PREFIX "net.dns"
-#define DNS_CHANGE_PROP_NAME "net.dnschange"
-const prop_info *dns_change_prop;
-int dns_last_change_counter;
-static int _get_dns_change_count();
-#else
-#include <resolv.h>
-#endif
-
-#include "res_private.h"
-
-/* Options.  Should all be left alone. */
-#ifndef DEBUG
-#define DEBUG
-#endif
-
-static void res_setoptions __P((res_state, const char *, const char *));
-
-static const char sort_mask[] = "/&";
-#define ISSORTMASK(ch) (strchr(sort_mask, ch) != NULL)
-static u_int32_t net_mask __P((struct in_addr));
-
-#if !defined(isascii)	/* XXX - could be a function */
-# define isascii(c) (!(c & 0200))
-#endif
-
-/*
- * Resolver state default settings.
- */
-
-/*
- * Set up default settings.  If the configuration file exist, the values
- * there will have precedence.  Otherwise, the server address is set to
- * INADDR_ANY and the default domain name comes from the gethostname().
- *
- * An interrim version of this code (BIND 4.9, pre-4.4BSD) used 127.0.0.1
- * rather than INADDR_ANY ("0.0.0.0") as the default name server address
- * 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
- * install local static routes through 127.0.0.1 for all your network
- * interfaces, that we could solve this problem without a code change.
- *
- * The configuration file should always be used, since it is the only way
- * to specify a default domain.  If you are running a server on your local
- * machine, you should say "nameserver 0.0.0.0" or "nameserver 127.0.0.1"
- * in the configuration file.
- *
- * Return 0 if completes successfully, -1 on error
- */
-int
-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 publicly. */
-int
-__res_vinit(res_state statp, int preinit) {
-	register FILE *fp;
-	register char *cp, **pp;
-	register int n;
-	char buf[BUFSIZ];
-	int nserv = 0;    /* number of nameserver records read from file */
-	int haveenv = 0;
-	int havesearch = 0;
-	int nsort = 0;
-	char *net;
-	int dots;
-	union res_sockaddr_union u[2];
-#ifdef ANDROID_CHANGES
-        pid_t mypid = getpid();
-        int use_proc_props = 0;
-        int found_prop;
-	char dnsProperty[PROP_VALUE_MAX];
-#endif
-
-	if (!preinit) {
-		statp->retrans = RES_TIMEOUT;
-		statp->retry = RES_DFLRETRY;
-		statp->options = RES_DEFAULT;
-		statp->id = res_randomid();
-	}
-
-	if ((statp->options & RES_INIT) != 0U)
-		res_ndestroy(statp);
-
-	memset(u, 0, sizeof(u));
-#ifdef USELOOPBACK
-	u[nserv].sin.sin_addr = inet_makeaddr(IN_LOOPBACKNET, 1);
-#else
-	u[nserv].sin.sin_addr.s_addr = INADDR_ANY;
-#endif
-	u[nserv].sin.sin_family = AF_INET;
-	u[nserv].sin.sin_port = htons(NAMESERVER_PORT);
-#ifdef HAVE_SA_LEN
-	u[nserv].sin.sin_len = sizeof(struct sockaddr_in);
-#endif
-	nserv++;
-#ifdef HAS_INET6_STRUCTS
-#ifdef USELOOPBACK
-	u[nserv].sin6.sin6_addr = in6addr_loopback;
-#else
-	u[nserv].sin6.sin6_addr = in6addr_any;
-#endif
-	u[nserv].sin6.sin6_family = AF_INET6;
-	u[nserv].sin6.sin6_port = htons(NAMESERVER_PORT);
-#ifdef HAVE_SA_LEN
-	u[nserv].sin6.sin6_len = sizeof(struct sockaddr_in6);
-#endif
-	nserv++;
-#endif
-	statp->nscount = 0;
-	statp->ndots = 1;
-	statp->pfcode = 0;
-	statp->_vcsock = -1;
-	statp->_flags = 0;
-	statp->qhook = NULL;
-	statp->rhook = NULL;
-	statp->_u._ext.nscount = 0;
-	statp->_u._ext.ext = malloc(sizeof(*statp->_u._ext.ext));
-	if (statp->_u._ext.ext != NULL) {
-	        memset(statp->_u._ext.ext, 0, sizeof(*statp->_u._ext.ext));
-		statp->_u._ext.ext->nsaddrs[0].sin = statp->nsaddr;
-		strcpy(statp->_u._ext.ext->nsuffix, "ip6.arpa");
-		strcpy(statp->_u._ext.ext->nsuffix2, "ip6.int");
-	}
-	statp->nsort = 0;
-	res_setservers(statp, u, nserv);
-
-#if 0 /* IGNORE THE ENVIRONMENT */
-	/* Allow user to override the local domain definition */
-	if ((cp = getenv("LOCALDOMAIN")) != NULL) {
-		(void)strncpy(statp->defdname, cp, sizeof(statp->defdname) - 1);
-		statp->defdname[sizeof(statp->defdname) - 1] = '\0';
-		haveenv++;
-
-		/*
-		 * Set search list to be blank-separated strings
-		 * from rest of env value.  Permits users of LOCALDOMAIN
-		 * to still have a search list, and anyone to set the
-		 * one that they want to use as an individual (even more
-		 * important now that the rfc1535 stuff restricts searches)
-		 */
-		cp = statp->defdname;
-		pp = statp->dnsrch;
-		*pp++ = cp;
-		for (n = 0; *cp && pp < statp->dnsrch + MAXDNSRCH; cp++) {
-			if (*cp == '\n')	/* silly backwards compat */
-				break;
-			else if (*cp == ' ' || *cp == '\t') {
-				*cp = 0;
-				n = 1;
-			} else if (n) {
-				*pp++ = cp;
-				n = 0;
-				havesearch = 1;
-			}
-		}
-		/* null terminate last domain if there are excess */
-		while (*cp != '\0' && *cp != ' ' && *cp != '\t' && *cp != '\n')
-			cp++;
-		*cp = '\0';
-		*pp++ = 0;
-	}
-	if (nserv > 0)
-		statp->nscount = nserv;
-#endif
-#ifdef ANDROID_CHANGES /* READ FROM SYSTEM PROPERTIES */
-	dns_last_change_counter = _get_dns_change_count();
-
-	nserv = 0;
-	for(n = 1; n <= MAX_DNS_PROPERTIES && nserv < MAXNS; n++) {
-		char propname[PROP_NAME_MAX];
-		char propvalue[PROP_VALUE_MAX];
-
-		struct addrinfo hints, *ai;
-		char sbuf[NI_MAXSERV];
-		const size_t minsiz = sizeof(statp->_u._ext.ext->nsaddrs[0]);
-
-		/*
-		 * Check first for process-specific properties, and if those don't
-		 * exist, try the generic properties.
-		 */
-		found_prop = 0;
-		if (n == 1 || use_proc_props) {
-			snprintf(propname, sizeof(propname), "%s%d.%d", DNS_PROP_NAME_PREFIX, n, mypid);
-			if(__system_property_get(propname, propvalue) < 1) {
-				if (use_proc_props) {
-					break;
-				}
-			} else {
-				found_prop = 1;
-				use_proc_props = 1;
-			}
-		}
-		if (!found_prop) {
-			snprintf(propname, sizeof(propname), "%s%d", DNS_PROP_NAME_PREFIX, n);
-			if(__system_property_get(propname, propvalue) < 1) {
-				break;
-			}
-		}
-
-		cp = propvalue;
-
-		while (*cp == ' ' || *cp == '\t')
-			cp++;
-		cp[strcspn(cp, ";# \t\n")] = '\0';
-		if ((*cp != '\0') && (*cp != '\n')) {
-			memset(&hints, 0, sizeof(hints));
-			hints.ai_family = PF_UNSPEC;
-			hints.ai_socktype = SOCK_DGRAM;	/*dummy*/
-			hints.ai_flags = AI_NUMERICHOST;
-			sprintf(sbuf, "%u", NAMESERVER_PORT);
-			if (getaddrinfo(cp, sbuf, &hints, &ai) == 0 &&
-			    (size_t)ai->ai_addrlen <= minsiz) {
-				if (statp->_u._ext.ext != NULL) {
-					memcpy(&statp->_u._ext.ext->nsaddrs[nserv],
-					       ai->ai_addr, ai->ai_addrlen);
-				}
-				if ((size_t)ai->ai_addrlen <=
-				    sizeof(statp->nsaddr_list[nserv])) {
-					memcpy(&statp->nsaddr_list[nserv],
-					       ai->ai_addr, ai->ai_addrlen);
-				} else {
-					statp->nsaddr_list[nserv].sin_family = 0;
-				}
-				freeaddrinfo(ai);
-				nserv++;
-			}
-		}
-	}
-#else /* IGNORE resolv.conf */
-#define	MATCH(line, name) \
-	(!strncmp(line, name, sizeof(name) - 1) && \
-	(line[sizeof(name) - 1] == ' ' || \
-	 line[sizeof(name) - 1] == '\t'))
-
-	nserv = 0;
-	if ((fp = fopen(_PATH_RESCONF, "r")) != NULL) {
-	    /* read the config file */
-	    while (fgets(buf, sizeof(buf), fp) != NULL) {
-		/* skip comments */
-		if (*buf == ';' || *buf == '#')
-			continue;
-		/* read default domain name */
-		if (MATCH(buf, "domain")) {
-		    if (haveenv)	/* skip if have from environ */
-			    continue;
-		    cp = buf + sizeof("domain") - 1;
-		    while (*cp == ' ' || *cp == '\t')
-			    cp++;
-		    if ((*cp == '\0') || (*cp == '\n'))
-			    continue;
-		    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;
-		}
-		/* set search list */
-		if (MATCH(buf, "search")) {
-		    if (haveenv)	/* skip if have from environ */
-			    continue;
-		    cp = buf + sizeof("search") - 1;
-		    while (*cp == ' ' || *cp == '\t')
-			    cp++;
-		    if ((*cp == '\0') || (*cp == '\n'))
-			    continue;
-		    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 = statp->defdname;
-		    pp = statp->dnsrch;
-		    *pp++ = cp;
-		    for (n = 0; *cp && pp < statp->dnsrch + MAXDNSRCH; cp++) {
-			    if (*cp == ' ' || *cp == '\t') {
-				    *cp = 0;
-				    n = 1;
-			    } else if (n) {
-				    *pp++ = cp;
-				    n = 0;
-			    }
-		    }
-		    /* null terminate last domain if there are excess */
-		    while (*cp != '\0' && *cp != ' ' && *cp != '\t')
-			    cp++;
-		    *cp = '\0';
-		    *pp++ = 0;
-		    havesearch = 1;
-		    continue;
-		}
-		/* read nameservers to query */
-		if (MATCH(buf, "nameserver") && nserv < MAXNS) {
-		    struct addrinfo hints, *ai;
-		    char sbuf[NI_MAXSERV];
-		    const size_t minsiz =
-		        sizeof(statp->_u._ext.ext->nsaddrs[0]);
-
-		    cp = buf + sizeof("nameserver") - 1;
-		    while (*cp == ' ' || *cp == '\t')
-			cp++;
-		    cp[strcspn(cp, ";# \t\n")] = '\0';
-		    if ((*cp != '\0') && (*cp != '\n')) {
-			memset(&hints, 0, sizeof(hints));
-			hints.ai_family = PF_UNSPEC;
-			hints.ai_socktype = SOCK_DGRAM;	/*dummy*/
-			hints.ai_flags = AI_NUMERICHOST;
-			sprintf(sbuf, "%u", NAMESERVER_PORT);
-			if (getaddrinfo(cp, sbuf, &hints, &ai) == 0 &&
-			    ai->ai_addrlen <= minsiz) {
-			    if (statp->_u._ext.ext != NULL) {
-				memcpy(&statp->_u._ext.ext->nsaddrs[nserv],
-				    ai->ai_addr, ai->ai_addrlen);
-			    }
-			    if (ai->ai_addrlen <=
-			        sizeof(statp->nsaddr_list[nserv])) {
-				memcpy(&statp->nsaddr_list[nserv],
-				    ai->ai_addr, ai->ai_addrlen);
-			    } else
-				statp->nsaddr_list[nserv].sin_family = 0;
-			    freeaddrinfo(ai);
-			    nserv++;
-			}
-		    }
-		    continue;
-		}
-		if (MATCH(buf, "sortlist")) {
-		    struct in_addr a;
-
-		    cp = buf + sizeof("sortlist") - 1;
-		    while (nsort < MAXRESOLVSORT) {
-			while (*cp == ' ' || *cp == '\t')
-			    cp++;
-			if (*cp == '\0' || *cp == '\n' || *cp == ';')
-			    break;
-			net = cp;
-			while (*cp && !ISSORTMASK(*cp) && *cp != ';' &&
-			       isascii(*cp) && !isspace((unsigned char)*cp))
-				cp++;
-			n = *cp;
-			*cp = 0;
-			if (inet_aton(net, &a)) {
-			    statp->sort_list[nsort].addr = a;
-			    if (ISSORTMASK(n)) {
-				*cp++ = n;
-				net = cp;
-				while (*cp && *cp != ';' &&
-					isascii(*cp) &&
-					!isspace((unsigned char)*cp))
-				    cp++;
-				n = *cp;
-				*cp = 0;
-				if (inet_aton(net, &a)) {
-				    statp->sort_list[nsort].mask = a.s_addr;
-				} else {
-				    statp->sort_list[nsort].mask =
-					net_mask(statp->sort_list[nsort].addr);
-				}
-			    } else {
-				statp->sort_list[nsort].mask =
-				    net_mask(statp->sort_list[nsort].addr);
-			    }
-			    nsort++;
-			}
-			*cp = n;
-		    }
-		    continue;
-		}
-		if (MATCH(buf, "options")) {
-		    res_setoptions(statp, buf + sizeof("options") - 1, "conf");
-		    continue;
-		}
-	    }
-	    if (nserv > 0)
-		statp->nscount = nserv;
-	    statp->nsort = nsort;
-	    (void) fclose(fp);
-	}
-#endif /* ANDROID_CHANGES */
-/*
- * Last chance to get a nameserver.  This should not normally
- * be necessary
- */
-#ifdef NO_RESOLV_CONF
-	if(nserv == 0)
-		nserv = get_nameservers(statp);
-#endif
-
-	if (statp->defdname[0] == 0 &&
-	    gethostname(buf, sizeof(statp->defdname) - 1) == 0 &&
-	    (cp = strchr(buf, '.')) != NULL)
-		strcpy(statp->defdname, cp + 1);
-
-	/* find components of local domain that might be searched */
-	if (havesearch == 0) {
-		pp = statp->dnsrch;
-		*pp++ = statp->defdname;
-		*pp = NULL;
-
-		dots = 0;
-		for (cp = statp->defdname; *cp; cp++)
-			dots += (*cp == '.');
-
-		cp = statp->defdname;
-		while (pp < statp->dnsrch + MAXDFLSRCH) {
-			if (dots < LOCALDOMAINPARTS)
-				break;
-			cp = strchr(cp, '.') + 1;    /* we know there is one */
-			*pp++ = cp;
-			dots--;
-		}
-		*pp = NULL;
-#ifdef DEBUG
-		if (statp->options & RES_DEBUG) {
-			printf(";; res_init()... default dnsrch list:\n");
-			for (pp = statp->dnsrch; *pp; pp++)
-				printf(";;\t%s\n", *pp);
-			printf(";;\t..END..\n");
-		}
-#endif
-	}
-
-	if ((cp = getenv("RES_OPTIONS")) != NULL)
-		res_setoptions(statp, cp, "env");
-	if (nserv > 0) {
-		statp->nscount = nserv;
-		statp->options |= RES_INIT;
-	}
-	return (0);
-}
-
-static void
-res_setoptions(res_state statp, const char *options, const char *source)
-{
-	const char *cp = options;
-	int i;
-	struct __res_state_ext *ext = statp->_u._ext.ext;
-
-#ifdef DEBUG
-	if (statp->options & RES_DEBUG)
-		printf(";; res_setoptions(\"%s\", \"%s\")...\n",
-		       options, source);
-#endif
-	while (*cp) {
-		/* skip leading and inner runs of spaces */
-		while (*cp == ' ' || *cp == '\t')
-			cp++;
-		/* search for and process individual options */
-		if (!strncmp(cp, "ndots:", sizeof("ndots:") - 1)) {
-			i = atoi(cp + sizeof("ndots:") - 1);
-			if (i <= RES_MAXNDOTS)
-				statp->ndots = i;
-			else
-				statp->ndots = RES_MAXNDOTS;
-#ifdef DEBUG
-			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;
-#ifdef DEBUG
-			if (statp->options & RES_DEBUG)
-				printf(";;\ttimeout=%d\n", statp->retrans);
-#endif
-		} 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;
-#ifdef DEBUG
-			if (statp->options & RES_DEBUG)
-				printf(";;\tattempts=%d\n", statp->retry);
-#endif
-		} else if (!strncmp(cp, "debug", sizeof("debug") - 1)) {
-#ifdef DEBUG
-			if (!(statp->options & RES_DEBUG)) {
-				printf(";; res_setoptions(\"%s\", \"%s\")..\n",
-				       options, source);
-				statp->options |= RES_DEBUG;
-			}
-			printf(";;\tdebug\n");
-#endif
-		} else if (!strncmp(cp, "no_tld_query",
-				    sizeof("no_tld_query") - 1) ||
-			   !strncmp(cp, "no-tld-query",
-				    sizeof("no-tld-query") - 1)) {
-			statp->options |= RES_NOTLDQUERY;
-		} else if (!strncmp(cp, "inet6", sizeof("inet6") - 1)) {
-			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;
-		}
-#ifdef RES_USE_EDNS0
-		else if (!strncmp(cp, "edns0", sizeof("edns0") - 1)) {
-			statp->options |= RES_USE_EDNS0;
-		}
-#endif
-		else if (!strncmp(cp, "dname", sizeof("dname") - 1)) {
-			statp->options |= RES_USE_DNAME;
-		}
-		else if (!strncmp(cp, "nibble:", sizeof("nibble:") - 1)) {
-			if (ext == NULL)
-				goto skip;
-			cp += sizeof("nibble:") - 1;
-			i = MIN(strcspn(cp, " \t"), sizeof(ext->nsuffix) - 1);
-			strncpy(ext->nsuffix, cp, (size_t)i);
-			ext->nsuffix[i] = '\0';
-		}
-		else if (!strncmp(cp, "nibble2:", sizeof("nibble2:") - 1)) {
-			if (ext == NULL)
-				goto skip;
-			cp += sizeof("nibble2:") - 1;
-			i = MIN(strcspn(cp, " \t"), sizeof(ext->nsuffix2) - 1);
-			strncpy(ext->nsuffix2, cp, (size_t)i);
-			ext->nsuffix2[i] = '\0';
-		}
-		else if (!strncmp(cp, "v6revmode:", sizeof("v6revmode:") - 1)) {
-			cp += sizeof("v6revmode:") - 1;
-			/* "nibble" and "bitstring" used to be valid */
-			if (!strncmp(cp, "single", sizeof("single") - 1)) {
-				statp->options |= RES_NO_NIBBLE2;
-			} else if (!strncmp(cp, "both", sizeof("both") - 1)) {
-				statp->options &=
-					 ~RES_NO_NIBBLE2;
-			}
-		}
-		else {
-			/* XXX - print a warning here? */
-		}
-   skip:
-		/* skip to next run of spaces */
-		while (*cp && *cp != ' ' && *cp != '\t')
-			cp++;
-	}
-}
-
-/* XXX - should really support CIDR which means explicit masks always. */
-static u_int32_t
-net_mask(in)		/* XXX - should really use system's version of this */
-	struct in_addr in;
-{
-	register u_int32_t i = ntohl(in.s_addr);
-
-	if (IN_CLASSA(i))
-		return (htonl(IN_CLASSA_NET));
-	else if (IN_CLASSB(i))
-		return (htonl(IN_CLASSB_NET));
-	return (htonl(IN_CLASSC_NET));
-}
-
-u_int
-res_randomid(void) {
-	struct timeval now;
-
-	gettimeofday(&now, NULL);
-	return (0xffff & (now.tv_sec ^ now.tv_usec ^ getpid()));
-}
-
-/*
- * This routine is for closing the socket if a virtual circuit is used and
- * the program wants to close it.  This provides support for endhostent()
- * which expects to close the socket.
- *
- * This routine is not expected to be user visible.
- */
-void
-res_nclose(res_state statp) {
-	int ns;
-
-	if (statp->_vcsock >= 0) {
-		(void) close(statp->_vcsock);
-		statp->_vcsock = -1;
-		statp->_flags &= ~(RES_F_VC | RES_F_CONN);
-	}
-	for (ns = 0; ns < statp->_u._ext.nscount; ns++) {
-		if (statp->_u._ext.nssocks[ns] != -1) {
-			(void) close(statp->_u._ext.nssocks[ns]);
-			statp->_u._ext.nssocks[ns] = -1;
-		}
-	}
-}
-
-void
-res_ndestroy(res_state statp) {
-	res_nclose(statp);
-	if (statp->_u._ext.ext != NULL)
-		free(statp->_u._ext.ext);
-	statp->options &= ~RES_INIT;
-	statp->_u._ext.ext = NULL;
-}
-
-const char *
-res_get_nibblesuffix(res_state statp) {
-	if (statp->_u._ext.ext)
-		return (statp->_u._ext.ext->nsuffix);
-	return ("ip6.arpa");
-}
-
-const char *
-res_get_nibblesuffix2(res_state statp) {
-	if (statp->_u._ext.ext)
-		return (statp->_u._ext.ext->nsuffix2);
-	return ("ip6.int");
-}
-
-void
-res_setservers(res_state statp, const union res_sockaddr_union *set, int cnt) {
-	int i, nserv;
-	size_t size;
-
-	/* close open servers */
-	res_nclose(statp);
-
-	/* cause rtt times to be forgotten */
-	statp->_u._ext.nscount = 0;
-
-	nserv = 0;
-	for (i = 0; i < cnt && nserv < MAXNS; i++) {
-		switch (set->sin.sin_family) {
-		case AF_INET:
-			size = sizeof(set->sin);
-			if (statp->_u._ext.ext)
-				memcpy(&statp->_u._ext.ext->nsaddrs[nserv],
-					&set->sin, size);
-			if (size <= sizeof(statp->nsaddr_list[nserv]))
-				memcpy(&statp->nsaddr_list[nserv],
-					&set->sin, size);
-#ifdef notdef
-			else
-				statp->nsaddr_list[nserv].sin_family = 0;
-#endif
-			nserv++;
-			break;
-
-#ifdef HAS_INET6_STRUCTS
-		case AF_INET6:
-			size = sizeof(set->sin6);
-			if (statp->_u._ext.ext)
-				memcpy(&statp->_u._ext.ext->nsaddrs[nserv],
-					&set->sin6, size);
-			if (size <= sizeof(statp->nsaddr_list[nserv]))
-				memcpy(&statp->nsaddr_list[nserv],
-					&set->sin6, size);
-			else
-				statp->nsaddr_list[nserv].sin_family = 0;
-			nserv++;
-			break;
-#endif
-
-		default:
-			break;
-		}
-		set++;
-	}
-	statp->nscount = nserv;
-
-}
-
-int
-res_getservers(res_state statp, union res_sockaddr_union *set, int cnt) {
-	int i;
-	size_t size;
-	u_int16_t family;
-
-	for (i = 0; i < statp->nscount && i < cnt; i++) {
-		if (statp->_u._ext.ext)
-			family = statp->_u._ext.ext->nsaddrs[i].sin.sin_family;
-		else
-			family = statp->nsaddr_list[i].sin_family;
-
-		switch (family) {
-		case AF_INET:
-			size = sizeof(set->sin);
-			if (statp->_u._ext.ext)
-				memcpy(&set->sin,
-				       &statp->_u._ext.ext->nsaddrs[i],
-				       size);
-			else
-				memcpy(&set->sin, &statp->nsaddr_list[i],
-				       size);
-			break;
-
-#ifdef HAS_INET6_STRUCTS
-		case AF_INET6:
-			size = sizeof(set->sin6);
-			if (statp->_u._ext.ext)
-				memcpy(&set->sin6,
-				       &statp->_u._ext.ext->nsaddrs[i],
-				       size);
-			else
-				memcpy(&set->sin6, &statp->nsaddr_list[i],
-				       size);
-			break;
-#endif
-
-		default:
-			set->sin.sin_family = 0;
-			break;
-		}
-		set++;
-	}
-	return (statp->nscount);
-}
-
-#ifdef ANDROID_CHANGES
-static int _get_dns_change_count()
-{
-	if (dns_change_prop == NULL) {
-		dns_change_prop = __system_property_find(DNS_CHANGE_PROP_NAME);
-	}
-	if (dns_change_prop != NULL) {
-		char propvalue[PROP_VALUE_MAX];
-		if (__system_property_read(dns_change_prop, NULL, propvalue) >= 1) {
-			return atoi(propvalue);
-		}
-	}
-	return -1;
-}
-
-int res_get_dns_changed()
-{
-	int change_count;
-
-	change_count = _get_dns_change_count();
-	if (change_count != dns_last_change_counter) {
-		if (change_count != -1) {
-			dns_last_change_counter = change_count;
-		}
-		return 1;
-	} else {
-		return 0;
-	}
-}
-#endif /* ANDROID_CHANGES */
diff --git a/libc/netbsd/resolv/res_mkquery.c b/libc/netbsd/resolv/res_mkquery.c
deleted file mode 100644
index fb4de7f..0000000
--- a/libc/netbsd/resolv/res_mkquery.c
+++ /dev/null
@@ -1,276 +0,0 @@
-/*	$NetBSD: res_mkquery.c,v 1.6 2006/01/24 17:40:32 christos Exp $	*/
-
-/*
- * Copyright (c) 2008  Android Open Source Project (query id randomization)
- * Copyright (c) 1985, 1993
- *    The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.
- *
- * 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, and that
- * the name of Digital Equipment Corporation not be used in advertising or
- * publicity pertaining to distribution of the document or software without
- * specific, written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
- * CORPORATION 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.
- */
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-#ifdef notdef
-static const char sccsid[] = "@(#)res_mkquery.c	8.1 (Berkeley) 6/4/93";
-static const char rcsid[] = "Id: res_mkquery.c,v 1.1.2.2.4.2 2004/03/16 12:34:18 marka Exp";
-#else
-__RCSID("$NetBSD: res_mkquery.c,v 1.6 2006/01/24 17:40:32 christos Exp $");
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <netinet/in.h>
-#include "arpa_nameser.h"
-#include <netdb.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-#include <stdio.h>
-#include <string.h>
-
-/* Options.  Leave them on. */
-#ifndef DEBUG
-#define DEBUG
-#endif
-
-#ifndef lint
-#define UNUSED(a)	(void)&a
-#else
-#define UNUSED(a)	a = a
-#endif
-
-extern const char *_res_opcodes[];
-
-/*
- * Form all types of queries.
- * Returns the size of the result or -1.
- */
-int
-res_nmkquery(res_state statp,
-	     int op,			/* opcode of query */
-	     const char *dname,		/* domain name */
-	     int class, int type,	/* class and type of query */
-	     const u_char *data,	/* resource record data */
-	     int datalen,		/* length of data */
-	     const u_char *newrr_in,	/* new rr for modify or append */
-	     u_char *buf,		/* buffer to put query */
-	     int buflen)		/* size of buffer */
-{
-	register HEADER *hp;
-	register u_char *cp, *ep;
-	register int n;
-	u_char *dnptrs[20], **dpp, **lastdnptr;
-
-	UNUSED(newrr_in);
-
-#ifdef DEBUG
-	if (statp->options & RES_DEBUG)
-		printf(";; res_nmkquery(%s, %s, %s, %s)\n",
-		       _res_opcodes[op], dname, p_class(class), p_type(type));
-#endif
-	/*
-	 * Initialize header fields.
-	 */
-	if ((buf == NULL) || (buflen < HFIXEDSZ))
-		return (-1);
-	memset(buf, 0, HFIXEDSZ);
-	hp = (HEADER *)(void *)buf;
-	hp->id = htons(res_randomid());
-	hp->opcode = op;
-	hp->rd = (statp->options & RES_RECURSE) != 0U;
-	hp->rcode = NOERROR;
-	cp = buf + HFIXEDSZ;
-	ep = buf + buflen;
-	dpp = dnptrs;
-	*dpp++ = buf;
-	*dpp++ = NULL;
-	lastdnptr = dnptrs + sizeof dnptrs / sizeof dnptrs[0];
-	/*
-	 * perform opcode specific processing
-	 */
-	switch (op) {
-	case QUERY:	/*FALLTHROUGH*/
-	case NS_NOTIFY_OP:
-		if (ep - cp < QFIXEDSZ)
-			return (-1);
-		if ((n = dn_comp(dname, cp, ep - cp - QFIXEDSZ, dnptrs,
-		    lastdnptr)) < 0)
-			return (-1);
-		cp += n;
-		ns_put16(type, cp);
-		cp += INT16SZ;
-		ns_put16(class, cp);
-		cp += INT16SZ;
-		hp->qdcount = htons(1);
-		if (op == QUERY || data == NULL)
-			break;
-		/*
-		 * Make an additional record for completion domain.
-		 */
-		if ((ep - cp) < RRFIXEDSZ)
-			return (-1);
-		n = dn_comp((const char *)data, cp, ep - cp - RRFIXEDSZ,
-			    dnptrs, lastdnptr);
-		if (n < 0)
-			return (-1);
-		cp += n;
-		ns_put16(T_NULL, cp);
-		cp += INT16SZ;
-		ns_put16(class, cp);
-		cp += INT16SZ;
-		ns_put32(0, cp);
-		cp += INT32SZ;
-		ns_put16(0, cp);
-		cp += INT16SZ;
-		hp->arcount = htons(1);
-		break;
-
-	case IQUERY:
-		/*
-		 * Initialize answer section
-		 */
-		if (ep - cp < 1 + RRFIXEDSZ + datalen)
-			return (-1);
-		*cp++ = '\0';	/* no domain name */
-		ns_put16(type, cp);
-		cp += INT16SZ;
-		ns_put16(class, cp);
-		cp += INT16SZ;
-		ns_put32(0, cp);
-		cp += INT32SZ;
-		ns_put16(datalen, cp);
-		cp += INT16SZ;
-		if (datalen) {
-			memcpy(cp, data, (size_t)datalen);
-			cp += datalen;
-		}
-		hp->ancount = htons(1);
-		break;
-
-	default:
-		return (-1);
-	}
-	return (cp - buf);
-}
-
-#ifdef RES_USE_EDNS0
-/* attach OPT pseudo-RR, as documented in RFC2671 (EDNS0). */
-#ifndef T_OPT
-#define T_OPT	41
-#endif
-
-int
-res_nopt(res_state statp,
-	 int n0,		/* current offset in buffer */
-	 u_char *buf,		/* buffer to put query */
-	 int buflen,		/* size of buffer */
-	 int anslen)		/* UDP answer buffer size */
-{
-	register HEADER *hp;
-	register u_char *cp, *ep;
-	u_int16_t flags = 0;
-
-#ifdef DEBUG
-	if ((statp->options & RES_DEBUG) != 0U)
-		printf(";; res_nopt()\n");
-#endif
-
-	hp = (HEADER *)(void *)buf;
-	cp = buf + n0;
-	ep = buf + buflen;
-
-	if ((ep - cp) < 1 + RRFIXEDSZ)
-		return (-1);
-
-	*cp++ = 0;	/* "." */
-
-	ns_put16(T_OPT, cp);	/* TYPE */
-	cp += INT16SZ;
-	ns_put16(anslen & 0xffff, cp);	/* CLASS = UDP payload size */
-	cp += INT16SZ;
-	*cp++ = NOERROR;	/* extended RCODE */
-	*cp++ = 0;		/* EDNS version */
-	if (statp->options & RES_USE_DNSSEC) {
-#ifdef DEBUG
-		if (statp->options & RES_DEBUG)
-			printf(";; res_opt()... ENDS0 DNSSEC\n");
-#endif
-		flags |= NS_OPT_DNSSEC_OK;
-	}
-	ns_put16(flags, cp);
-	cp += INT16SZ;
-	ns_put16(0, cp);	/* RDLEN */
-	cp += INT16SZ;
-	hp->arcount = htons(ntohs(hp->arcount) + 1);
-
-	return (cp - buf);
-}
-#endif
diff --git a/libc/netbsd/resolv/res_private.h b/libc/netbsd/resolv/res_private.h
deleted file mode 100644
index 8341913..0000000
--- a/libc/netbsd/resolv/res_private.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*	$NetBSD: res_private.h,v 1.1.1.1 2004/05/20 17:18:54 christos Exp $	*/
-
-#ifndef res_private_h
-#define res_private_h
-
-struct __res_state_ext {
-	union res_sockaddr_union nsaddrs[MAXNS];
-	struct sort_list {
-		int     af;
-		union {
-			struct in_addr  ina;
-			struct in6_addr in6a;
-		} addr, mask;
-	} sort_list[MAXRESOLVSORT];
-	char nsuffix[64];
-	char nsuffix2[64];
-};
-
-extern int
-res_ourserver_p(const res_state statp, const struct sockaddr *sa);
-
-#endif
diff --git a/libc/netbsd/resolv/res_query.c b/libc/netbsd/resolv/res_query.c
deleted file mode 100644
index 8e1321e..0000000
--- a/libc/netbsd/resolv/res_query.c
+++ /dev/null
@@ -1,415 +0,0 @@
-/*	$NetBSD: res_query.c,v 1.7 2006/01/24 17:41:25 christos Exp $	*/
-
-/*
- * Copyright (c) 1988, 1993
- *    The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.
- *
- * 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, and that
- * the name of Digital Equipment Corporation not be used in advertising or
- * publicity pertaining to distribution of the document or software without
- * specific, written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
- * CORPORATION 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.
- */
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-#ifdef notdef
-static const char sccsid[] = "@(#)res_query.c	8.1 (Berkeley) 6/4/93";
-static const char rcsid[] = "Id: res_query.c,v 1.2.2.3.4.2 2004/03/16 12:34:19 marka Exp";
-#else
-__RCSID("$NetBSD: res_query.c,v 1.7 2006/01/24 17:41:25 christos Exp $");
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-#include "arpa_nameser.h"
-#include <ctype.h>
-#include <errno.h>
-#include <netdb.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-#include <stdio.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-
-#define DISABLE_HOST_ALIAS 1
-
-/* Options.  Leave them on. */
-#ifndef DEBUG
-#define DEBUG
-#endif
-
-#if PACKETSZ > 1024
-#define MAXPACKET	PACKETSZ
-#else
-#define MAXPACKET	1024
-#endif
-
-/*
- * 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.
- */
-int
-res_nquery(res_state statp,
-	   const char *name,	/* domain name */
-	   int class, int type,	/* class and type of query */
-	   u_char *answer,	/* buffer to put answer */
-	   int anslen)		/* size of answer buffer */
-{
-	u_char buf[MAXPACKET];
-	HEADER *hp = (HEADER *)(void *)answer;
-	int n;
-	u_int oflags;
-
-	oflags = statp->_flags;
-
-again:
-	hp->rcode = NOERROR;	/* default */
-
-#ifdef DEBUG
-	if (statp->options & RES_DEBUG)
-		printf(";; res_query(%s, %d, %d)\n", name, class, type);
-#endif
-
-	n = res_nmkquery(statp, QUERY, name, class, type, NULL, 0, NULL,
-			 buf, sizeof(buf));
-#ifdef RES_USE_EDNS0
-	if (n > 0 && (statp->_flags & RES_F_EDNS0ERR) == 0 &&
-	    (statp->options & (RES_USE_EDNS0|RES_USE_DNSSEC)) != 0U)
-		n = res_nopt(statp, n, buf, sizeof(buf), anslen);
-#endif
-	if (n <= 0) {
-#ifdef DEBUG
-		if (statp->options & RES_DEBUG)
-			printf(";; res_query: mkquery failed\n");
-#endif
-		RES_SET_H_ERRNO(statp, NO_RECOVERY);
-		return (n);
-	}
-	n = res_nsend(statp, buf, n, answer, anslen);
-	if (n < 0) {
-#ifdef RES_USE_EDNS0
-		/* if the query choked with EDNS0, retry without EDNS0 */
-		if ((statp->options & (RES_USE_EDNS0|RES_USE_DNSSEC)) != 0U &&
-		    ((oflags ^ statp->_flags) & RES_F_EDNS0ERR) != 0) {
-			statp->_flags |= RES_F_EDNS0ERR;
-			if (statp->options & RES_DEBUG)
-				printf(";; res_nquery: retry without EDNS0\n");
-			goto again;
-		}
-#endif
-#ifdef DEBUG
-		if (statp->options & RES_DEBUG)
-			printf(";; res_query: send error\n");
-#endif
-		RES_SET_H_ERRNO(statp, TRY_AGAIN);
-		return (n);
-	}
-
-	if (hp->rcode != NOERROR || ntohs(hp->ancount) == 0) {
-#ifdef DEBUG
-		if (statp->options & RES_DEBUG)
-			printf(";; rcode = (%s), counts = an:%d ns:%d ar:%d\n",
-			       p_rcode(hp->rcode),
-			       ntohs(hp->ancount),
-			       ntohs(hp->nscount),
-			       ntohs(hp->arcount));
-#endif
-		switch (hp->rcode) {
-		case NXDOMAIN:
-			RES_SET_H_ERRNO(statp, HOST_NOT_FOUND);
-			break;
-		case SERVFAIL:
-			RES_SET_H_ERRNO(statp, TRY_AGAIN);
-			break;
-		case NOERROR:
-			RES_SET_H_ERRNO(statp, NO_DATA);
-			break;
-		case FORMERR:
-		case NOTIMP:
-		case REFUSED:
-		default:
-			RES_SET_H_ERRNO(statp, NO_RECOVERY);
-			break;
-		}
-		return (-1);
-	}
-	return (n);
-}
-
-/*
- * 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.
- */
-int
-res_nsearch(res_state statp,
-	    const char *name,	/* domain name */
-	    int class, int type,	/* class and type of query */
-	    u_char *answer,	/* buffer to put answer */
-	    int anslen)		/* size of answer */
-{
-	const char *cp, * const *domain;
-	HEADER *hp = (HEADER *)(void *)answer;
-	char tmp[NS_MAXDNAME];
-	u_int dots;
-	int trailing_dot, ret, saved_herrno;
-	int got_nodata = 0, got_servfail = 0, root_on_list = 0;
-	int tried_as_is = 0;
-	int searched = 0;
-
-	errno = 0;
-	RES_SET_H_ERRNO(statp, HOST_NOT_FOUND);  /* True if we never query. */
-
-	dots = 0;
-	for (cp = name; *cp != '\0'; 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 = res_hostalias(statp, name, tmp, sizeof tmp))!= NULL)
-		return (res_nquery(statp, cp, class, type, answer, anslen));
-
-	/*
-	 * If there are enough dots in the name, let's just give it a
-	 * try 'as is'. The threshold can be set with the "ndots" option.
-	 * Also, query 'as is', if there is a trailing dot in the name.
-	 */
-	saved_herrno = -1;
-	if (dots >= statp->ndots || trailing_dot) {
-		ret = res_nquerydomain(statp, name, NULL, class, type,
-					 answer, anslen);
-		if (ret > 0 || trailing_dot)
-			return (ret);
-		saved_herrno = statp->res_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 && (statp->options & RES_DEFNAMES) != 0U) ||
-	    (dots && !trailing_dot && (statp->options & RES_DNSRCH) != 0U)) {
-		int done = 0;
-
-		for (domain = (const char * const *)statp->dnsrch;
-		     *domain && !done;
-		     domain++) {
-			searched = 1;
-
-			if (domain[0][0] == '\0' ||
-			    (domain[0][0] == '.' && domain[0][1] == '\0'))
-				root_on_list++;
-
-			ret = res_nquerydomain(statp, name, *domain,
-					       class, type,
-					       answer, anslen);
-			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) {
-				RES_SET_H_ERRNO(statp, TRY_AGAIN);
-				return (-1);
-			}
-
-			switch (statp->res_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 ((statp->options & RES_DNSRCH) == 0U)
-				done++;
-		}
-	}
-
-	/*
-	 * If the query has not already been tried as is then try it
-	 * unless RES_NOTLDQUERY is set and there were no dots.
-	 */
-	if ((dots || !searched || (statp->options & RES_NOTLDQUERY) == 0U) &&
-	    !(tried_as_is || root_on_list)) {
-		ret = res_nquerydomain(statp, name, NULL, class, type,
-				       answer, anslen);
-		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)
-		RES_SET_H_ERRNO(statp, saved_herrno);
-	else if (got_nodata)
-		RES_SET_H_ERRNO(statp, NO_DATA);
-	else if (got_servfail)
-		RES_SET_H_ERRNO(statp, 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.
- */
-int
-res_nquerydomain(res_state statp,
-	    const char *name,
-	    const char *domain,
-	    int class, int type,	/* class and type of query */
-	    u_char *answer,		/* buffer to put answer */
-	    int anslen)		/* size of answer */
-{
-	char nbuf[MAXDNAME];
-	const char *longname = nbuf;
-	int n, d;
-
-#ifdef DEBUG
-	if (statp->options & RES_DEBUG)
-		printf(";; res_nquerydomain(%s, %s, %d, %d)\n",
-		       name, domain?domain:"<Nil>", class, type);
-#endif
-	if (domain == NULL) {
-		/*
-		 * Check for trailing '.';
-		 * copy without '.' if present.
-		 */
-		n = strlen(name);
-		if (n >= MAXDNAME) {
-			RES_SET_H_ERRNO(statp, NO_RECOVERY);
-			return (-1);
-		}
-		n--;
-		if (n >= 0 && name[n] == '.') {
-			strncpy(nbuf, name, (size_t)n);
-			nbuf[n] = '\0';
-		} else
-			longname = name;
-	} else {
-		n = strlen(name);
-		d = strlen(domain);
-		if (n + d + 1 >= MAXDNAME) {
-			RES_SET_H_ERRNO(statp, NO_RECOVERY);
-			return (-1);
-		}
-		sprintf(nbuf, "%s.%s", name, domain);
-	}
-	return (res_nquery(statp, longname, class, type, answer, anslen));
-}
-
-const char *
-res_hostalias(const res_state statp, const char *name, char *dst, size_t siz) {
-	return (NULL);
-}
diff --git a/libc/netbsd/resolv/res_random.c b/libc/netbsd/resolv/res_random.c
deleted file mode 100644
index 4570c4f..0000000
--- a/libc/netbsd/resolv/res_random.c
+++ /dev/null
@@ -1,275 +0,0 @@
-/* $OpenBSD: res_random.c,v 1.17 2008/04/13 00:28:35 djm Exp $ */
-
-/*
- * Copyright 1997 Niels Provos <provos@physnet.uni-hamburg.de>
- * Copyright 2008 Damien Miller <djm@openbsd.org>
- * Copyright 2008 Android Open Source Project (thread-safety)
- * All rights reserved.
- *
- * Theo de Raadt <deraadt@openbsd.org> came up with the idea of using
- * such a mathematical system to generate more random (yet non-repeating)
- * ids to solve the resolver/named problem.  But Niels designed the
- * actual system based on the constraints.
- *
- * Later modified by Damien Miller to wrap the LCG output in a 15-bit
- * permutation generator based on a Luby-Rackoff block cipher. This
- * ensures the output is non-repeating and preserves the MSB twiddle
- * trick, but makes it more resistant to LCG prediction.
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
- */
-
-/*
- * seed = random 15bit
- * n = prime, g0 = generator to n,
- * j = random so that gcd(j,n-1) == 1
- * g = g0^j mod n will be a generator again.
- *
- * X[0] = random seed.
- * X[n] = a*X[n-1]+b mod m is a Linear Congruential Generator
- * with a = 7^(even random) mod m,
- *      b = random with gcd(b,m) == 1
- *      m = 31104 and a maximal period of m-1.
- *
- * The transaction id is determined by:
- * id[n] = seed xor (g^X[n] mod n)
- *
- * Effectivly the id is restricted to the lower 15 bits, thus
- * yielding two different cycles by toggling the msb on and off.
- * This avoids reuse issues caused by reseeding.
- *
- * The output of this generator is then randomly permuted though a
- * custom 15 bit Luby-Rackoff block cipher.
- */
-
-#include <sys/types.h>
-#include <netinet/in.h>
-#include <sys/time.h>
-#include "resolv_private.h"
-
-#include <unistd.h>
-#include <stdlib.h>
-#include <string.h>
-
-/* BIONIC-BEGIN */
-static pthread_mutex_t         _res_random_lock = PTHREAD_MUTEX_INITIALIZER;
-#define  _RES_RANDOM_LOCK()    pthread_mutex_lock(&_res_random_lock)
-#define  _RES_RANDOM_UNLOCK()  pthread_mutex_unlock(&_res_random_lock)
-/* BIONIC-END */
-
-#define RU_OUT  	180	/* Time after wich will be reseeded */
-#define RU_MAX		30000	/* Uniq cycle, avoid blackjack prediction */
-#define RU_GEN		2	/* Starting generator */
-#define RU_N		32749	/* RU_N-1 = 2*2*3*2729 */
-#define RU_AGEN		7	/* determine ru_a as RU_AGEN^(2*rand) */
-#define RU_M		31104	/* RU_M = 2^7*3^5 - don't change */
-#define RU_ROUNDS	11	/* Number of rounds for permute (odd) */
-
-struct prf_ctx {
-	/* PRF lookup table for odd rounds (7 bits input to 8 bits output) */
-	u_char prf7[(RU_ROUNDS / 2) * (1 << 7)];
-
-	/* PRF lookup table for even rounds (8 bits input to 7 bits output) */
-	u_char prf8[((RU_ROUNDS + 1) / 2) * (1 << 8)];
-};
-
-#define PFAC_N 3
-const static u_int16_t pfacts[PFAC_N] = {
-	2,
-	3,
-	2729
-};
-
-static u_int16_t ru_x;
-static u_int16_t ru_seed, ru_seed2;
-static u_int16_t ru_a, ru_b;
-static u_int16_t ru_g;
-static u_int16_t ru_counter = 0;
-static u_int16_t ru_msb = 0;
-static struct prf_ctx *ru_prf = NULL;
-static long ru_reseed;
-
-static u_int16_t pmod(u_int16_t, u_int16_t, u_int16_t);
-static void res_initid(void);
-
-/*
- * Do a fast modular exponation, returned value will be in the range
- * of 0 - (mod-1)
- */
-static u_int16_t
-pmod(u_int16_t gen, u_int16_t exp, u_int16_t mod)
-{
-	u_int16_t s, t, u;
-
-	s = 1;
-	t = gen;
-	u = exp;
-
-	while (u) {
-		if (u & 1)
-			s = (s * t) % mod;
-		u >>= 1;
-		t = (t * t) % mod;
-	}
-	return (s);
-}
-
-/*
- * 15-bit permutation based on Luby-Rackoff block cipher
- */
-u_int
-permute15(u_int in)
-{
-	int i;
-	u_int left, right, tmp;
-
-	if (ru_prf == NULL)
-		return in;
-
-	left = (in >> 8) & 0x7f;
-	right = in & 0xff;
-
-	/*
-	 * Each round swaps the width of left and right. Even rounds have
-	 * a 7-bit left, odd rounds have an 8-bit left.	Since this uses an
-	 * odd number of rounds, left is always 8 bits wide at the end.
-	 */
-	for (i = 0; i < RU_ROUNDS; i++) {
-		if ((i & 1) == 0)
-			tmp = ru_prf->prf8[(i << (8 - 1)) | right] & 0x7f;
-		else
-			tmp = ru_prf->prf7[((i - 1) << (7 - 1)) | right];
-		tmp ^= left;
-		left = right;
-		right = tmp;
-	}
-
-	return (right << 8) | left;
-}
-
-/*
- * Initializes the seed and chooses a suitable generator. Also toggles
- * the msb flag. The msb flag is used to generate two distinct
- * cycles of random numbers and thus avoiding reuse of ids.
- *
- * This function is called from res_randomid() when needed, an
- * application does not have to worry about it.
- */
-static void
-res_initid(void)
-{
-	u_int16_t j, i;
-	u_int32_t tmp;
-	int noprime = 1;
-	struct timeval tv;
-
-	ru_x = arc4random_uniform(RU_M);
-
-	/* 15 bits of random seed */
-	tmp = arc4random();
-	ru_seed = (tmp >> 16) & 0x7FFF;
-	ru_seed2 = tmp & 0x7FFF;
-
-	/* Determine the LCG we use */
-	tmp = arc4random();
-	ru_b = (tmp & 0xfffe) | 1;
-	ru_a = pmod(RU_AGEN, (tmp >> 16) & 0xfffe, RU_M);
-	while (ru_b % 3 == 0)
-		ru_b += 2;
-
-	j = arc4random_uniform(RU_N);
-
-	/*
-	 * Do a fast gcd(j,RU_N-1), so we can find a j with
-	 * gcd(j, RU_N-1) == 1, giving a new generator for
-	 * RU_GEN^j mod RU_N
-	 */
-
-	while (noprime) {
-		for (i = 0; i < PFAC_N; i++)
-			if (j % pfacts[i] == 0)
-				break;
-
-		if (i >= PFAC_N)
-			noprime = 0;
-		else
-			j = (j + 1) % RU_N;
-	}
-
-	ru_g = pmod(RU_GEN, j, RU_N);
-	ru_counter = 0;
-
-	/* Initialise PRF for Luby-Rackoff permutation */
-	if (ru_prf == NULL)
-		ru_prf = malloc(sizeof(*ru_prf));
-	if (ru_prf != NULL)
-		arc4random_buf(ru_prf, sizeof(*ru_prf));
-
-	gettimeofday(&tv, NULL);
-	ru_reseed = tv.tv_sec + RU_OUT;
-	ru_msb = ru_msb == 0x8000 ? 0 : 0x8000;
-}
-
-u_int
-res_randomid(void)
-{
-	struct timeval tv;
-        u_int  result;
-
-        _RES_RANDOM_LOCK()
-	gettimeofday(&tv, NULL);
-	if (ru_counter >= RU_MAX || tv.tv_sec > ru_reseed)
-		res_initid();
-
-	/* Linear Congruential Generator */
-	ru_x = (ru_a * ru_x + ru_b) % RU_M;
-	ru_counter++;
-
-	result = permute15(ru_seed ^ pmod(ru_g, ru_seed2 + ru_x, RU_N)) | ru_msb;
-        _RES_RANDOM_UNLOCK()
-        return result;
-}
-
-#if 0
-int
-main(int argc, char **argv)
-{
-	int i, n;
-	u_int16_t wert;
-
-	res_initid();
-
-	printf("Generator: %u\n", ru_g);
-	printf("Seed: %u\n", ru_seed);
-	printf("Reseed at %ld\n", ru_reseed);
-	printf("Ru_X: %u\n", ru_x);
-	printf("Ru_A: %u\n", ru_a);
-	printf("Ru_B: %u\n", ru_b);
-
-	n = argc > 1 ? atoi(argv[1]) : 60001;
-	for (i=0;i<n;i++) {
-		wert = res_randomid();
-		printf("%u\n", wert);
-	}
-	return 0;
-}
-#endif
-
diff --git a/libc/netbsd/resolv/res_send.c b/libc/netbsd/resolv/res_send.c
deleted file mode 100644
index 3aca760..0000000
--- a/libc/netbsd/resolv/res_send.c
+++ /dev/null
@@ -1,1168 +0,0 @@
-/*	$NetBSD: res_send.c,v 1.9 2006/01/24 17:41:25 christos Exp $	*/
-
-/*
- * Copyright 2008  Android Open Source Project (source port randomization)
- * Copyright (c) 1985, 1989, 1993
- *    The Regents of the University of California.  All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- * 	This product includes software developed by the University of
- * 	California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-/*
- * Portions Copyright (c) 1993 by Digital Equipment Corporation.
- *
- * 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, and that
- * the name of Digital Equipment Corporation not be used in advertising or
- * publicity pertaining to distribution of the document or software without
- * specific, written prior permission.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
- * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS.   IN NO EVENT SHALL DIGITAL EQUIPMENT
- * CORPORATION 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.
- */
-
-/*
- * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
- * 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 ISC DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC 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.
- */
-
-#include <sys/cdefs.h>
-#if defined(LIBC_SCCS) && !defined(lint)
-#ifdef notdef
-static const char sccsid[] = "@(#)res_send.c	8.1 (Berkeley) 6/4/93";
-static const char rcsid[] = "Id: res_send.c,v 1.5.2.2.4.5 2004/08/10 02:19:56 marka Exp";
-#else
-__RCSID("$NetBSD: res_send.c,v 1.9 2006/01/24 17:41:25 christos Exp $");
-#endif
-#endif /* LIBC_SCCS and not lint */
-
-/* set to 1 to use our small/simple/limited DNS cache */
-#define  USE_RESOLV_CACHE  1
-
-/*
- * Send query to name server and wait for reply.
- */
-
-#include <sys/types.h>
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/socket.h>
-#include <sys/uio.h>
-
-#include <netinet/in.h>
-#include <netinet/in6.h>
-#include "arpa_nameser.h"
-#include <arpa/inet.h>
-
-#include <errno.h>
-#include <netdb.h>
-#ifdef ANDROID_CHANGES
-#include "resolv_private.h"
-#else
-#include <resolv.h>
-#endif
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include <isc/eventlib.h>
-
-#if USE_RESOLV_CACHE
-#  include <resolv_cache.h>
-#endif
-
-#ifndef DE_CONST
-#define DE_CONST(c,v)   v = ((c) ? \
-    strchr((const void *)(c), *(const char *)(const void *)(c)) : NULL)
-#endif
-
-/* Options.  Leave them on. */
-#ifndef DEBUG
-#define DEBUG
-#endif
-#include "res_debug.h"
-#include "res_private.h"
-
-#define EXT(res) ((res)->_u._ext)
-
-static const int highestFD = FD_SETSIZE - 1;
-
-/* Forward. */
-
-static int		get_salen __P((const struct sockaddr *));
-static struct sockaddr * get_nsaddr __P((res_state, size_t));
-static int		send_vc(res_state, const u_char *, int,
-				u_char *, int, int *, int);
-static int		send_dg(res_state, const u_char *, int,
-				u_char *, int, int *, int,
-				int *, int *);
-static void		Aerror(const res_state, FILE *, const char *, int,
-			       const struct sockaddr *, int);
-static void		Perror(const res_state, FILE *, const char *, int);
-static int		sock_eq(struct sockaddr *, struct sockaddr *);
-#ifdef NEED_PSELECT
-static int		pselect(int, void *, void *, void *,
-				struct timespec *,
-				const sigset_t *);
-#endif
-void res_pquery(const res_state, const u_char *, int, FILE *);
-
-
-/* BIONIC-BEGIN: implement source port randomization */
-typedef union {
-    struct sockaddr      sa;
-    struct sockaddr_in   sin;
-    struct sockaddr_in6  sin6;
-} _sockaddr_union;
-
-static int
-random_bind( int  s, int  family )
-{
-    _sockaddr_union  u;
-    int              j;
-    socklen_t        slen;
-
-    /* clear all, this also sets the IP4/6 address to 'any' */
-    memset( &u, 0, sizeof u );
-
-    switch (family) {
-        case AF_INET:
-            u.sin.sin_family = family;
-            slen             = sizeof u.sin;
-            break;
-        case AF_INET6:
-            u.sin6.sin6_family = family;
-            slen               = sizeof u.sin6;
-            break;
-        default:
-            errno = EPROTO;
-            return -1;
-    }
-
-    /* first try to bind to a random source port a few times */
-    for (j = 0; j < 10; j++) {
-        /* find a random port between 1025 .. 65534 */
-        int  port = 1025 + (res_randomid() % (65535-1025));
-        if (family == AF_INET)
-            u.sin.sin_port = htons(port);
-        else
-            u.sin6.sin6_port = htons(port);
-
-        if ( !bind( s, &u.sa, slen ) )
-            return 0;
-    }
-
-    /* nothing after 10 tries, our network table is probably busy */
-    /* let the system decide which port is best */
-    if (family == AF_INET)
-        u.sin.sin_port = 0;
-    else
-        u.sin6.sin6_port = 0;
-
-    return bind( s, &u.sa, slen );
-}
-/* BIONIC-END */
-
-static const int niflags = NI_NUMERICHOST | NI_NUMERICSERV;
-
-/* Public. */
-
-/* int
- * res_isourserver(ina)
- *	looks up "ina" in _res.ns_addr_list[]
- * returns:
- *	0  : not found
- *	>0 : found
- * author:
- *	paul vixie, 29may94
- */
-int
-res_ourserver_p(const res_state statp, const struct sockaddr *sa) {
-	const struct sockaddr_in *inp, *srv;
-	const struct sockaddr_in6 *in6p, *srv6;
-	int ns;
-
-	switch (sa->sa_family) {
-	case AF_INET:
-		inp = (const struct sockaddr_in *)(const void *)sa;
-		for (ns = 0;  ns < statp->nscount;  ns++) {
-			srv = (struct sockaddr_in *)(void *)get_nsaddr(statp, (size_t)ns);
-			if (srv->sin_family == inp->sin_family &&
-			    srv->sin_port == inp->sin_port &&
-			    (srv->sin_addr.s_addr == INADDR_ANY ||
-			     srv->sin_addr.s_addr == inp->sin_addr.s_addr))
-				return (1);
-		}
-		break;
-	case AF_INET6:
-		if (EXT(statp).ext == NULL)
-			break;
-		in6p = (const struct sockaddr_in6 *)(const void *)sa;
-		for (ns = 0;  ns < statp->nscount;  ns++) {
-			srv6 = (struct sockaddr_in6 *)(void *)get_nsaddr(statp, (size_t)ns);
-			if (srv6->sin6_family == in6p->sin6_family &&
-			    srv6->sin6_port == in6p->sin6_port &&
-#ifdef HAVE_SIN6_SCOPE_ID
-			    (srv6->sin6_scope_id == 0 ||
-			     srv6->sin6_scope_id == in6p->sin6_scope_id) &&
-#endif
-			    (IN6_IS_ADDR_UNSPECIFIED(&srv6->sin6_addr) ||
-			     IN6_ARE_ADDR_EQUAL(&srv6->sin6_addr, &in6p->sin6_addr)))
-				return (1);
-		}
-		break;
-	default:
-		break;
-	}
-	return (0);
-}
-
-/* int
- * res_nameinquery(name, type, class, buf, eom)
- *	look for (name,type,class) in the query section of packet (buf,eom)
- * requires:
- *	buf + HFIXEDSZ <= eom
- * returns:
- *	-1 : format error
- *	0  : not found
- *	>0 : found
- * author:
- *	paul vixie, 29may94
- */
-int
-res_nameinquery(const char *name, int type, int class,
-		const u_char *buf, const u_char *eom)
-{
-	const u_char *cp = buf + HFIXEDSZ;
-	int qdcount = ntohs(((const HEADER*)(const void *)buf)->qdcount);
-
-	while (qdcount-- > 0) {
-		char tname[MAXDNAME+1];
-		int n, ttype, tclass;
-
-		n = dn_expand(buf, eom, cp, tname, sizeof tname);
-		if (n < 0)
-			return (-1);
-		cp += n;
-		if (cp + 2 * INT16SZ > eom)
-			return (-1);
-		ttype = ns_get16(cp); cp += INT16SZ;
-		tclass = ns_get16(cp); cp += INT16SZ;
-		if (ttype == type && tclass == class &&
-		    ns_samename(tname, name) == 1)
-			return (1);
-	}
-	return (0);
-}
-
-/* int
- * res_queriesmatch(buf1, eom1, buf2, eom2)
- *	is there a 1:1 mapping of (name,type,class)
- *	in (buf1,eom1) and (buf2,eom2)?
- * returns:
- *	-1 : format error
- *	0  : not a 1:1 mapping
- *	>0 : is a 1:1 mapping
- * author:
- *	paul vixie, 29may94
- */
-int
-res_queriesmatch(const u_char *buf1, const u_char *eom1,
-		 const u_char *buf2, const u_char *eom2)
-{
-	const u_char *cp = buf1 + HFIXEDSZ;
-	int qdcount = ntohs(((const HEADER*)(const void *)buf1)->qdcount);
-
-	if (buf1 + HFIXEDSZ > eom1 || buf2 + HFIXEDSZ > eom2)
-		return (-1);
-
-	/*
-	 * Only header section present in replies to
-	 * dynamic update packets.
-	 */
-	if ((((const HEADER *)(const void *)buf1)->opcode == ns_o_update) &&
-	    (((const HEADER *)(const void *)buf2)->opcode == ns_o_update))
-		return (1);
-
-	if (qdcount != ntohs(((const HEADER*)(const void *)buf2)->qdcount))
-		return (0);
-	while (qdcount-- > 0) {
-		char tname[MAXDNAME+1];
-		int n, ttype, tclass;
-
-		n = dn_expand(buf1, eom1, cp, tname, sizeof tname);
-		if (n < 0)
-			return (-1);
-		cp += n;
-		if (cp + 2 * INT16SZ > eom1)
-			return (-1);
-		ttype = ns_get16(cp);	cp += INT16SZ;
-		tclass = ns_get16(cp); cp += INT16SZ;
-		if (!res_nameinquery(tname, ttype, tclass, buf2, eom2))
-			return (0);
-	}
-	return (1);
-}
-
-
-int
-res_nsend(res_state statp,
-	  const u_char *buf, int buflen, u_char *ans, int anssiz)
-{
-	int gotsomewhere, terrno, try, v_circuit, resplen, ns, n;
-	char abuf[NI_MAXHOST];
-#if USE_RESOLV_CACHE
-        struct resolv_cache*  cache;
-        ResolvCacheStatus     cache_status = RESOLV_CACHE_UNSUPPORTED;
-#endif
-
-	if (statp->nscount == 0) {
-		errno = ESRCH;
-		return (-1);
-	}
-	if (anssiz < HFIXEDSZ) {
-		errno = EINVAL;
-		return (-1);
-	}
-	DprintQ((statp->options & RES_DEBUG) || (statp->pfcode & RES_PRF_QUERY),
-		(stdout, ";; res_send()\n"), buf, buflen);
-	v_circuit = (statp->options & RES_USEVC) || buflen > PACKETSZ;
-	gotsomewhere = 0;
-	terrno = ETIMEDOUT;
-
-#if USE_RESOLV_CACHE
-        cache = __get_res_cache();
-        if (cache != NULL) {
-            int  anslen = 0;
-            cache_status = _resolv_cache_lookup(
-                                cache, buf, buflen,
-                                ans, anssiz, &anslen);
-
-            if (cache_status == RESOLV_CACHE_FOUND) {
-                return anslen;
-            }
-        }
-#endif
-
-	/*
-	 * If the ns_addr_list in the resolver context has changed, then
-	 * invalidate our cached copy and the associated timing data.
-	 */
-	if (EXT(statp).nscount != 0) {
-		int needclose = 0;
-		struct sockaddr_storage peer;
-		socklen_t peerlen;
-
-		if (EXT(statp).nscount != statp->nscount)
-			needclose++;
-		else
-			for (ns = 0; ns < statp->nscount; ns++) {
-				if (statp->nsaddr_list[ns].sin_family &&
-				    !sock_eq((struct sockaddr *)(void *)&statp->nsaddr_list[ns],
-					     (struct sockaddr *)(void *)&EXT(statp).ext->nsaddrs[ns])) {
-					needclose++;
-					break;
-				}
-
-				if (EXT(statp).nssocks[ns] == -1)
-					continue;
-				peerlen = sizeof(peer);
-				if (getsockname(EXT(statp).nssocks[ns],
-				    (struct sockaddr *)(void *)&peer, &peerlen) < 0) {
-					needclose++;
-					break;
-				}
-				if (!sock_eq((struct sockaddr *)(void *)&peer,
-				    get_nsaddr(statp, (size_t)ns))) {
-					needclose++;
-					break;
-				}
-			}
-		if (needclose) {
-			res_nclose(statp);
-			EXT(statp).nscount = 0;
-		}
-	}
-
-	/*
-	 * Maybe initialize our private copy of the ns_addr_list.
-	 */
-	if (EXT(statp).nscount == 0) {
-		for (ns = 0; ns < statp->nscount; ns++) {
-			EXT(statp).nstimes[ns] = RES_MAXTIME;
-			EXT(statp).nssocks[ns] = -1;
-			if (!statp->nsaddr_list[ns].sin_family)
-				continue;
-			EXT(statp).ext->nsaddrs[ns].sin =
-				 statp->nsaddr_list[ns];
-		}
-		EXT(statp).nscount = statp->nscount;
-	}
-
-	/*
-	 * Some resolvers want to even out the load on their nameservers.
-	 * Note that RES_BLAST overrides RES_ROTATE.
-	 */
-	if ((statp->options & RES_ROTATE) != 0U &&
-	    (statp->options & RES_BLAST) == 0U) {
-		union res_sockaddr_union inu;
-		struct sockaddr_in ina;
-		int lastns = statp->nscount - 1;
-		int fd;
-		u_int16_t nstime;
-
-		if (EXT(statp).ext != NULL)
-			inu = EXT(statp).ext->nsaddrs[0];
-		ina = statp->nsaddr_list[0];
-		fd = EXT(statp).nssocks[0];
-		nstime = EXT(statp).nstimes[0];
-		for (ns = 0; ns < lastns; ns++) {
-			if (EXT(statp).ext != NULL)
-                                EXT(statp).ext->nsaddrs[ns] =
-					EXT(statp).ext->nsaddrs[ns + 1];
-			statp->nsaddr_list[ns] = statp->nsaddr_list[ns + 1];
-			EXT(statp).nssocks[ns] = EXT(statp).nssocks[ns + 1];
-			EXT(statp).nstimes[ns] = EXT(statp).nstimes[ns + 1];
-		}
-		if (EXT(statp).ext != NULL)
-			EXT(statp).ext->nsaddrs[lastns] = inu;
-		statp->nsaddr_list[lastns] = ina;
-		EXT(statp).nssocks[lastns] = fd;
-		EXT(statp).nstimes[lastns] = nstime;
-	}
-
-	/*
-	 * Send request, RETRY times, or until successful.
-	 */
-	for (try = 0; try < statp->retry; try++) {
-	    for (ns = 0; ns < statp->nscount; ns++) {
-		struct sockaddr *nsap;
-		int nsaplen;
-		nsap = get_nsaddr(statp, (size_t)ns);
-		nsaplen = get_salen(nsap);
-		statp->_flags &= ~RES_F_LASTMASK;
-		statp->_flags |= (ns << RES_F_LASTSHIFT);
- same_ns:
-		if (statp->qhook) {
-			int done = 0, loops = 0;
-
-			do {
-				res_sendhookact act;
-
-				act = (*statp->qhook)(&nsap, &buf, &buflen,
-						      ans, anssiz, &resplen);
-				switch (act) {
-				case res_goahead:
-					done = 1;
-					break;
-				case res_nextns:
-					res_nclose(statp);
-					goto next_ns;
-				case res_done:
-					return (resplen);
-				case res_modified:
-					/* give the hook another try */
-					if (++loops < 42) /*doug adams*/
-						break;
-					/*FALLTHROUGH*/
-				case res_error:
-					/*FALLTHROUGH*/
-				default:
-					goto fail;
-				}
-			} while (!done);
-		}
-
-		Dprint(((statp->options & RES_DEBUG) &&
-			getnameinfo(nsap, (socklen_t)nsaplen, abuf, sizeof(abuf),
-				    NULL, 0, niflags) == 0),
-		       (stdout, ";; Querying server (# %d) address = %s\n",
-			ns + 1, abuf));
-
-
-		if (v_circuit) {
-			/* Use VC; at most one attempt per server. */
-			try = statp->retry;
-			n = send_vc(statp, buf, buflen, ans, anssiz, &terrno,
-				    ns);
-			if (n < 0)
-				goto fail;
-			if (n == 0)
-				goto next_ns;
-			resplen = n;
-		} else {
-			/* Use datagrams. */
-			n = send_dg(statp, buf, buflen, ans, anssiz, &terrno,
-				    ns, &v_circuit, &gotsomewhere);
-			if (n < 0)
-				goto fail;
-			if (n == 0)
-				goto next_ns;
-			if (v_circuit)
-				goto same_ns;
-			resplen = n;
-		}
-
-		Dprint((statp->options & RES_DEBUG) ||
-		       ((statp->pfcode & RES_PRF_REPLY) &&
-			(statp->pfcode & RES_PRF_HEAD1)),
-		       (stdout, ";; got answer:\n"));
-
-		DprintQ((statp->options & RES_DEBUG) ||
-			(statp->pfcode & RES_PRF_REPLY),
-			(stdout, "%s", ""),
-			ans, (resplen > anssiz) ? anssiz : resplen);
-
-#if USE_RESOLV_CACHE
-                if (cache_status == RESOLV_CACHE_NOTFOUND) {
-                    _resolv_cache_add(cache, buf, buflen,
-                                      ans, resplen);
-                }
-#endif
-		/*
-		 * If we have temporarily opened a virtual circuit,
-		 * or if we haven't been asked to keep a socket open,
-		 * close the socket.
-		 */
-		if ((v_circuit && (statp->options & RES_USEVC) == 0U) ||
-		    (statp->options & RES_STAYOPEN) == 0U) {
-			res_nclose(statp);
-		}
-		if (statp->rhook) {
-			int done = 0, loops = 0;
-
-			do {
-				res_sendhookact act;
-
-				act = (*statp->rhook)(nsap, buf, buflen,
-						      ans, anssiz, &resplen);
-				switch (act) {
-				case res_goahead:
-				case res_done:
-					done = 1;
-					break;
-				case res_nextns:
-					res_nclose(statp);
-					goto next_ns;
-				case res_modified:
-					/* give the hook another try */
-					if (++loops < 42) /*doug adams*/
-						break;
-					/*FALLTHROUGH*/
-				case res_error:
-					/*FALLTHROUGH*/
-				default:
-					goto fail;
-				}
-			} while (!done);
-
-		}
-		return (resplen);
- next_ns: ;
-	   } /*foreach ns*/
-	} /*foreach retry*/
-	res_nclose(statp);
-	if (!v_circuit) {
-		if (!gotsomewhere)
-			errno = ECONNREFUSED;	/* no nameservers found */
-		else
-			errno = ETIMEDOUT;	/* no answer obtained */
-	} else
-		errno = terrno;
-	return (-1);
- fail:
-	res_nclose(statp);
-	return (-1);
-}
-
-/* Private */
-
-static int
-get_salen(sa)
-	const struct sockaddr *sa;
-{
-
-#ifdef HAVE_SA_LEN
-	/* There are people do not set sa_len.  Be forgiving to them. */
-	if (sa->sa_len)
-		return (sa->sa_len);
-#endif
-
-	if (sa->sa_family == AF_INET)
-		return (sizeof(struct sockaddr_in));
-	else if (sa->sa_family == AF_INET6)
-		return (sizeof(struct sockaddr_in6));
-	else
-		return (0);	/* unknown, die on connect */
-}
-
-/*
- * pick appropriate nsaddr_list for use.  see res_init() for initialization.
- */
-static struct sockaddr *
-get_nsaddr(statp, n)
-	res_state statp;
-	size_t n;
-{
-
-	if (!statp->nsaddr_list[n].sin_family && EXT(statp).ext) {
-		/*
-		 * - EXT(statp).ext->nsaddrs[n] holds an address that is larger
-		 *   than struct sockaddr, and
-		 * - user code did not update statp->nsaddr_list[n].
-		 */
-		return (struct sockaddr *)(void *)&EXT(statp).ext->nsaddrs[n];
-	} else {
-		/*
-		 * - user code updated statp->nsaddr_list[n], or
-		 * - statp->nsaddr_list[n] has the same content as
-		 *   EXT(statp).ext->nsaddrs[n].
-		 */
-		return (struct sockaddr *)(void *)&statp->nsaddr_list[n];
-	}
-}
-
-static int
-send_vc(res_state statp,
-	const u_char *buf, int buflen, u_char *ans, int anssiz,
-	int *terrno, int ns)
-{
-	const HEADER *hp = (const HEADER *)(const void *)buf;
-	HEADER *anhp = (HEADER *)(void *)ans;
-	struct sockaddr *nsap;
-	int nsaplen;
-	int truncating, connreset, resplen, n;
-	struct iovec iov[2];
-	u_short len;
-	u_char *cp;
-	void *tmp;
-
-	nsap = get_nsaddr(statp, (size_t)ns);
-	nsaplen = get_salen(nsap);
-
-	connreset = 0;
- same_ns:
-	truncating = 0;
-
-	/* Are we still talking to whom we want to talk to? */
-	if (statp->_vcsock >= 0 && (statp->_flags & RES_F_VC) != 0) {
-		struct sockaddr_storage peer;
-		socklen_t size = sizeof peer;
-
-		if (getpeername(statp->_vcsock,
-				(struct sockaddr *)(void *)&peer, &size) < 0 ||
-		    !sock_eq((struct sockaddr *)(void *)&peer, nsap)) {
-			res_nclose(statp);
-			statp->_flags &= ~RES_F_VC;
-		}
-	}
-
-	if (statp->_vcsock < 0 || (statp->_flags & RES_F_VC) == 0) {
-		if (statp->_vcsock >= 0)
-			res_nclose(statp);
-
-		statp->_vcsock = socket(nsap->sa_family, SOCK_STREAM, 0);
-		if (statp->_vcsock > highestFD) {
-			res_nclose(statp);
-			errno = ENOTSOCK;
-		}
-		if (statp->_vcsock < 0) {
-			switch (errno) {
-			case EPROTONOSUPPORT:
-#ifdef EPFNOSUPPORT
-			case EPFNOSUPPORT:
-#endif
-			case EAFNOSUPPORT:
-				Perror(statp, stderr, "socket(vc)", errno);
-				return (0);
-			default:
-				*terrno = errno;
-				Perror(statp, stderr, "socket(vc)", errno);
-				return (-1);
-			}
-		}
-		errno = 0;
-		if (random_bind(statp->_vcsock,nsap->sa_family) < 0) {
-			*terrno = errno;
-			Aerror(statp, stderr, "bind/vc", errno, nsap,
-			    nsaplen);
-			res_nclose(statp);
-			return (0);
-		}
-		if (connect(statp->_vcsock, nsap, (socklen_t)nsaplen) < 0) {
-			*terrno = errno;
-			Aerror(statp, stderr, "connect/vc", errno, nsap,
-			    nsaplen);
-			res_nclose(statp);
-			return (0);
-		}
-		statp->_flags |= RES_F_VC;
-	}
-
-	/*
-	 * Send length & message
-	 */
-	ns_put16((u_short)buflen, (u_char*)(void *)&len);
-	iov[0] = evConsIovec(&len, INT16SZ);
-	DE_CONST(buf, tmp);
-	iov[1] = evConsIovec(tmp, (size_t)buflen);
-	if (writev(statp->_vcsock, iov, 2) != (INT16SZ + buflen)) {
-		*terrno = errno;
-		Perror(statp, stderr, "write failed", errno);
-		res_nclose(statp);
-		return (0);
-	}
-	/*
-	 * Receive length & response
-	 */
- read_len:
-	cp = ans;
-	len = INT16SZ;
-	while ((n = read(statp->_vcsock, (char *)cp, (size_t)len)) > 0) {
-		cp += n;
-		if ((len -= n) == 0)
-			break;
-	}
-	if (n <= 0) {
-		*terrno = errno;
-		Perror(statp, stderr, "read failed", errno);
-		res_nclose(statp);
-		/*
-		 * A long running process might get its TCP
-		 * connection reset if the remote server was
-		 * restarted.  Requery the server instead of
-		 * trying a new one.  When there is only one
-		 * server, this means that a query might work
-		 * instead of failing.  We only allow one reset
-		 * per query to prevent looping.
-		 */
-		if (*terrno == ECONNRESET && !connreset) {
-			connreset = 1;
-			res_nclose(statp);
-			goto same_ns;
-		}
-		res_nclose(statp);
-		return (0);
-	}
-	resplen = ns_get16(ans);
-	if (resplen > anssiz) {
-		Dprint(statp->options & RES_DEBUG,
-		       (stdout, ";; response truncated\n")
-		       );
-		truncating = 1;
-		len = anssiz;
-	} else
-		len = resplen;
-	if (len < HFIXEDSZ) {
-		/*
-		 * Undersized message.
-		 */
-		Dprint(statp->options & RES_DEBUG,
-		       (stdout, ";; undersized: %d\n", len));
-		*terrno = EMSGSIZE;
-		res_nclose(statp);
-		return (0);
-	}
-	cp = ans;
-	while (len != 0 && (n = read(statp->_vcsock, (char *)cp, (size_t)len)) > 0){
-		cp += n;
-		len -= n;
-	}
-	if (n <= 0) {
-		*terrno = errno;
-		Perror(statp, stderr, "read(vc)", errno);
-		res_nclose(statp);
-		return (0);
-	}
-	if (truncating) {
-		/*
-		 * Flush rest of answer so connection stays in synch.
-		 */
-		anhp->tc = 1;
-		len = resplen - anssiz;
-		while (len != 0) {
-			char junk[PACKETSZ];
-
-			n = read(statp->_vcsock, junk,
-				 (len > sizeof junk) ? sizeof junk : len);
-			if (n > 0)
-				len -= n;
-			else
-				break;
-		}
-	}
-	/*
-	 * If the calling applicating has bailed out of
-	 * a previous call and failed to arrange to have
-	 * the circuit closed or the server has got
-	 * itself confused, then drop the packet and
-	 * wait for the correct one.
-	 */
-	if (hp->id != anhp->id) {
-		DprintQ((statp->options & RES_DEBUG) ||
-			(statp->pfcode & RES_PRF_REPLY),
-			(stdout, ";; old answer (unexpected):\n"),
-			ans, (resplen > anssiz) ? anssiz: resplen);
-		goto read_len;
-	}
-
-	/*
-	 * All is well, or the error is fatal.  Signal that the
-	 * next nameserver ought not be tried.
-	 */
-	return (resplen);
-}
-
-static int
-send_dg(res_state statp,
-	const u_char *buf, int buflen, u_char *ans, int anssiz,
-	int *terrno, int ns, int *v_circuit, int *gotsomewhere)
-{
-	const HEADER *hp = (const HEADER *)(const void *)buf;
-	HEADER *anhp = (HEADER *)(void *)ans;
-	const struct sockaddr *nsap;
-	int nsaplen;
-	struct timespec now, timeout, finish;
-	fd_set dsmask;
-	struct sockaddr_storage from;
-	socklen_t fromlen;
-	int resplen, seconds, n, s;
-
-	nsap = get_nsaddr(statp, (size_t)ns);
-	nsaplen = get_salen(nsap);
-	if (EXT(statp).nssocks[ns] == -1) {
-		EXT(statp).nssocks[ns] = socket(nsap->sa_family, SOCK_DGRAM, 0);
-		if (EXT(statp).nssocks[ns] > highestFD) {
-			res_nclose(statp);
-			errno = ENOTSOCK;
-		}
-		if (EXT(statp).nssocks[ns] < 0) {
-			switch (errno) {
-			case EPROTONOSUPPORT:
-#ifdef EPFNOSUPPORT
-			case EPFNOSUPPORT:
-#endif
-			case EAFNOSUPPORT:
-				Perror(statp, stderr, "socket(dg)", errno);
-				return (0);
-			default:
-				*terrno = errno;
-				Perror(statp, stderr, "socket(dg)", errno);
-				return (-1);
-			}
-		}
-#ifndef CANNOT_CONNECT_DGRAM
-		/*
-		 * On a 4.3BSD+ machine (client and server,
-		 * actually), sending to a nameserver datagram
-		 * port with no nameserver will cause an
-		 * ICMP port unreachable message to be returned.
-		 * If our datagram socket is "connected" to the
-		 * server, we get an ECONNREFUSED error on the next
-		 * socket operation, and select returns if the
-		 * error message is received.  We can thus detect
-		 * the absence of a nameserver without timing out.
-		 */
-		if (random_bind(EXT(statp).nssocks[ns], nsap->sa_family) < 0) {
-			Aerror(statp, stderr, "bind(dg)", errno, nsap,
-			    nsaplen);
-			res_nclose(statp);
-			return (0);
-		}
-		if (connect(EXT(statp).nssocks[ns], nsap, (socklen_t)nsaplen) < 0) {
-			Aerror(statp, stderr, "connect(dg)", errno, nsap,
-			    nsaplen);
-			res_nclose(statp);
-			return (0);
-		}
-#endif /* !CANNOT_CONNECT_DGRAM */
-		Dprint(statp->options & RES_DEBUG,
-		       (stdout, ";; new DG socket\n"))
-	}
-	s = EXT(statp).nssocks[ns];
-#ifndef CANNOT_CONNECT_DGRAM
-	if (send(s, (const char*)buf, (size_t)buflen, 0) != buflen) {
-		Perror(statp, stderr, "send", errno);
-		res_nclose(statp);
-		return (0);
-	}
-#else /* !CANNOT_CONNECT_DGRAM */
-	if (sendto(s, (const char*)buf, buflen, 0, nsap, nsaplen) != buflen)
-	{
-		Aerror(statp, stderr, "sendto", errno, nsap, nsaplen);
-		res_nclose(statp);
-		return (0);
-	}
-#endif /* !CANNOT_CONNECT_DGRAM */
-
-	/*
-	 * Wait for reply.
-	 */
-	seconds = (statp->retrans << ns);
-	if (ns > 0)
-		seconds /= statp->nscount;
-	if (seconds <= 0)
-		seconds = 1;
-	now = evNowTime();
-	timeout = evConsTime((long)seconds, 0L);
-	finish = evAddTime(now, timeout);
-	goto nonow;
- wait:
-	now = evNowTime();
- nonow:
-	FD_ZERO(&dsmask);
-	FD_SET(s, &dsmask);
-	if (evCmpTime(finish, now) > 0)
-		timeout = evSubTime(finish, now);
-	else
-		timeout = evConsTime(0L, 0L);
-	n = pselect(s + 1, &dsmask, NULL, NULL, &timeout, NULL);
-	if (n == 0) {
-		Dprint(statp->options & RES_DEBUG, (stdout, ";; timeout\n"));
-		*gotsomewhere = 1;
-		return (0);
-	}
-	if (n < 0) {
-		if (errno == EINTR)
-			goto wait;
-		Perror(statp, stderr, "select", errno);
-		res_nclose(statp);
-		return (0);
-	}
-	errno = 0;
-	fromlen = sizeof(from);
-	resplen = recvfrom(s, (char*)ans, (size_t)anssiz,0,
-			   (struct sockaddr *)(void *)&from, &fromlen);
-	if (resplen <= 0) {
-		Perror(statp, stderr, "recvfrom", errno);
-		res_nclose(statp);
-		return (0);
-	}
-	*gotsomewhere = 1;
-	if (resplen < HFIXEDSZ) {
-		/*
-		 * Undersized message.
-		 */
-		Dprint(statp->options & RES_DEBUG,
-		       (stdout, ";; undersized: %d\n",
-			resplen));
-		*terrno = EMSGSIZE;
-		res_nclose(statp);
-		return (0);
-	}
-	if (hp->id != anhp->id) {
-		/*
-		 * response from old query, ignore it.
-		 * XXX - potential security hazard could
-		 *	 be detected here.
-		 */
-		DprintQ((statp->options & RES_DEBUG) ||
-			(statp->pfcode & RES_PRF_REPLY),
-			(stdout, ";; old answer:\n"),
-			ans, (resplen > anssiz) ? anssiz : resplen);
-		goto wait;
-	}
-	if (!(statp->options & RES_INSECURE1) &&
-	    !res_ourserver_p(statp, (struct sockaddr *)(void *)&from)) {
-		/*
-		 * response from wrong server? ignore it.
-		 * XXX - potential security hazard could
-		 *	 be detected here.
-		 */
-		DprintQ((statp->options & RES_DEBUG) ||
-			(statp->pfcode & RES_PRF_REPLY),
-			(stdout, ";; not our server:\n"),
-			ans, (resplen > anssiz) ? anssiz : resplen);
-		goto wait;
-	}
-#ifdef RES_USE_EDNS0
-	if (anhp->rcode == FORMERR && (statp->options & RES_USE_EDNS0) != 0U) {
-		/*
-		 * Do not retry if the server do not understand EDNS0.
-		 * The case has to be captured here, as FORMERR packet do not
-		 * carry query section, hence res_queriesmatch() returns 0.
-		 */
-		DprintQ(statp->options & RES_DEBUG,
-			(stdout, "server rejected query with EDNS0:\n"),
-			ans, (resplen > anssiz) ? anssiz : resplen);
-		/* record the error */
-		statp->_flags |= RES_F_EDNS0ERR;
-		res_nclose(statp);
-		return (0);
-	}
-#endif
-	if (!(statp->options & RES_INSECURE2) &&
-	    !res_queriesmatch(buf, buf + buflen,
-			      ans, ans + anssiz)) {
-		/*
-		 * response contains wrong query? ignore it.
-		 * XXX - potential security hazard could
-		 *	 be detected here.
-		 */
-		DprintQ((statp->options & RES_DEBUG) ||
-			(statp->pfcode & RES_PRF_REPLY),
-			(stdout, ";; wrong query name:\n"),
-			ans, (resplen > anssiz) ? anssiz : resplen);
-		goto wait;
-	}
-	if (anhp->rcode == SERVFAIL ||
-	    anhp->rcode == NOTIMP ||
-	    anhp->rcode == REFUSED) {
-		DprintQ(statp->options & RES_DEBUG,
-			(stdout, "server rejected query:\n"),
-			ans, (resplen > anssiz) ? anssiz : resplen);
-		res_nclose(statp);
-		/* don't retry if called from dig */
-		if (!statp->pfcode)
-			return (0);
-	}
-	if (!(statp->options & RES_IGNTC) && anhp->tc) {
-		/*
-		 * To get the rest of answer,
-		 * use TCP with same server.
-		 */
-		Dprint(statp->options & RES_DEBUG,
-		       (stdout, ";; truncated answer\n"));
-		*v_circuit = 1;
-		res_nclose(statp);
-		return (1);
-	}
-	/*
-	 * All is well, or the error is fatal.  Signal that the
-	 * next nameserver ought not be tried.
-	 */
-	return (resplen);
-}
-
-static void
-Aerror(const res_state statp, FILE *file, const char *string, int error,
-       const struct sockaddr *address, int alen)
-{
-	int save = errno;
-	char hbuf[NI_MAXHOST];
-	char sbuf[NI_MAXSERV];
-
-	alen = alen;
-
-	if ((statp->options & RES_DEBUG) != 0U) {
-		if (getnameinfo(address, (socklen_t)alen, hbuf, sizeof(hbuf),
-		    sbuf, sizeof(sbuf), niflags)) {
-			strncpy(hbuf, "?", sizeof(hbuf) - 1);
-			hbuf[sizeof(hbuf) - 1] = '\0';
-			strncpy(sbuf, "?", sizeof(sbuf) - 1);
-			sbuf[sizeof(sbuf) - 1] = '\0';
-		}
-		fprintf(file, "res_send: %s ([%s].%s): %s\n",
-			string, hbuf, sbuf, strerror(error));
-	}
-	errno = save;
-}
-
-static void
-Perror(const res_state statp, FILE *file, const char *string, int error) {
-	int save = errno;
-
-	if ((statp->options & RES_DEBUG) != 0U)
-		fprintf(file, "res_send: %s: %s\n",
-			string, strerror(error));
-	errno = save;
-}
-
-static int
-sock_eq(struct sockaddr *a, struct sockaddr *b) {
-	struct sockaddr_in *a4, *b4;
-	struct sockaddr_in6 *a6, *b6;
-
-	if (a->sa_family != b->sa_family)
-		return 0;
-	switch (a->sa_family) {
-	case AF_INET:
-		a4 = (struct sockaddr_in *)(void *)a;
-		b4 = (struct sockaddr_in *)(void *)b;
-		return a4->sin_port == b4->sin_port &&
-		    a4->sin_addr.s_addr == b4->sin_addr.s_addr;
-	case AF_INET6:
-		a6 = (struct sockaddr_in6 *)(void *)a;
-		b6 = (struct sockaddr_in6 *)(void *)b;
-		return a6->sin6_port == b6->sin6_port &&
-#ifdef HAVE_SIN6_SCOPE_ID
-		    a6->sin6_scope_id == b6->sin6_scope_id &&
-#endif
-		    IN6_ARE_ADDR_EQUAL(&a6->sin6_addr, &b6->sin6_addr);
-	default:
-		return 0;
-	}
-}
-
-#ifdef NEED_PSELECT
-/* XXX needs to move to the porting library. */
-static int
-pselect(int nfds, void *rfds, void *wfds, void *efds,
-	struct timespec *tsp, const sigset_t *sigmask)
-{
-	struct timeval tv, *tvp;
-	sigset_t sigs;
-	int n;
-
-	if (tsp) {
-		tvp = &tv;
-		tv = evTimeVal(*tsp);
-	} else
-		tvp = NULL;
-	if (sigmask)
-		sigprocmask(SIG_SETMASK, sigmask, &sigs);
-	n = select(nfds, rfds, wfds, efds, tvp);
-	if (sigmask)
-		sigprocmask(SIG_SETMASK, &sigs, NULL);
-	if (tsp)
-		*tsp = evTimeSpec(tv);
-	return (n);
-}
-#endif
diff --git a/libc/netbsd/resolv/res_state.c b/libc/netbsd/resolv/res_state.c
deleted file mode 100644
index 3a2301d..0000000
--- a/libc/netbsd/resolv/res_state.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source 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:
- *  * Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- *  * 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.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
- * COPYRIGHT OWNER 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 <sys/cdefs.h>
-#include <sys/types.h>
-#include <arpa/inet.h>
-#include "arpa_nameser.h"
-#include <netdb.h>
-#include "resolv_private.h"
-#include "resolv_cache.h"
-#include <pthread.h>
-#include <stdlib.h>
-
-#define _REALLY_INCLUDE_SYS__SYSTEM_PROPERTIES_H_
-#include <sys/_system_properties.h>
-
-static pthread_key_t   _res_key;
-static pthread_once_t  _res_once;
-
-typedef struct {
-    int                    _h_errno;
-    struct __res_state     _nres[1];
-    unsigned               _serial;
-    struct prop_info*      _pi;
-    struct res_static      _rstatic[1];
-} _res_thread;
-
-static _res_thread*
-_res_thread_alloc(void)
-{
-    _res_thread*  rt = malloc(sizeof(*rt));
-
-    if (rt) {
-        rt->_h_errno = 0;
-        /* Special system property which tracks any changes to 'net.*'. */
-        rt->_serial = 0;
-        rt->_pi = (struct prop_info*) __system_property_find("net.change");
-        if (rt->_pi) {
-            rt->_serial = rt->_pi->serial;
-        }
-        if ( res_ninit( rt->_nres ) < 0 ) {
-            free(rt);
-            rt = NULL;
-        } else {
-            memset(rt->_rstatic, 0, sizeof rt->_rstatic);
-        }
-    }
-    return rt;
-}
-
-static void
-_res_static_done( res_static  rs )
-{
-    /* fortunately, there is nothing to do here, since the
-     * points in h_addr_ptrs and host_aliases should all
-     * point to 'hostbuf'
-     */
-    if (rs->hostf) {  /* should not happen in theory, but just be safe */
-        fclose(rs->hostf);
-        rs->hostf = NULL;
-    }
-    free(rs->servent.s_aliases);
-}
-
-static void
-_res_thread_free( void*  _rt )
-{
-    _res_thread*  rt = _rt;
-
-    _res_static_done(rt->_rstatic);
-    res_ndestroy(rt->_nres);
-    free(rt);
-}
-
-static void
-_res_init_key( void )
-{
-    pthread_key_create( &_res_key, _res_thread_free );
-}
-
-static _res_thread*
-_res_thread_get(void)
-{
-    _res_thread*  rt;
-    pthread_once( &_res_once, _res_init_key );
-    rt = pthread_getspecific( _res_key );
-    if (rt == NULL) {
-        if ((rt = _res_thread_alloc()) == NULL) {
-            return NULL;
-        }
-        rt->_h_errno = 0;
-        rt->_serial = 0;
-        pthread_setspecific( _res_key, rt );
-    }
-    /* Check the serial value for any chanes to net.* properties. */
-    if (rt->_pi == NULL) {
-        rt->_pi = (struct prop_info*) __system_property_find("net.change");
-    }
-    if (rt->_pi == NULL || rt->_serial == rt->_pi->serial) {
-        return rt;
-    }
-    rt->_serial = rt->_pi->serial;
-    /* Reload from system properties. */
-    if ( res_ninit( rt->_nres ) < 0 ) {
-        free(rt);
-        rt = NULL;
-        pthread_setspecific( _res_key, rt );
-    }
-    _resolv_cache_reset(rt->_serial);
-    return rt;
-}
-
-struct __res_state _nres;
-
-#if 0
-struct resolv_cache*
-__get_res_cache(void)
-{
-    _res_thread*  rt = _res_thread_get();
-
-    if (!rt)
-        return NULL;
-
-    if (!rt->_cache) {
-        rt->_cache = _resolv_cache_create();
-    }
-    return rt->_cache;
-}
-#endif
-
-int*
-__get_h_errno(void)
-{
-    _res_thread*  rt    = _res_thread_get();
-    static int    panic = NETDB_INTERNAL;
-
-    return rt ? &rt->_h_errno : &panic;
-}
-
-res_state
-__res_get_state(void)
-{
-    _res_thread*  rt = _res_thread_get();
-
-    return rt ? rt->_nres : NULL;
-}
-
-void
-__res_put_state(res_state res)
-{
-    /* nothing to do */
-    res=res;
-}
-
-res_static
-__res_get_static(void)
-{
-    _res_thread*  rt = _res_thread_get();
-
-    return rt ? rt->_rstatic : NULL;
-}