Add support for rpc.ypxfrd and document it in the man page.

Also generallize the yp_dbwrite functions a little: allow the caller
to specify certain flags. I need this mostly for some changes to
rpc.yppasswdd to allow in-place updates.

Also change Makefile a little to use the same format as ypserv.

8 files changed, 230 insertions, 40 deletions

diff --git a/libexec/ypxfr/Makefile b/libexec/ypxfr/Makefile
index 0339aee..b672219 100644
--- a/libexec/ypxfr/Makefile
+++ b/libexec/ypxfr/Makefile
@@ -2,25 +2,39 @@
 
 PROG=	ypxfr
 SRCS=	ypxfr_clnt.c yp_clnt.c ypxfr_getmap.c yp_dblookup.c \
-	yp_error.c ypxfr_misc.c ypxfr_main.c yp_dbwrite.c
+	yp_error.c ypxfr_misc.c ypxfr_main.c yp_dbwrite.c \
+	ypxfrd_xdr.c ypxfrd_getmap.c
 
 .PATH: ${.CURDIR}/../../usr.sbin/ypserv
 
 MAN8=	ypxfr.8
-CFLAGS+=-I.
+
+CFLAGS+= -I.
+LDADD+= -lrpcsvc
 
 CLEANFILES= yp.h yp_clnt.c ypxfr_clnt.c
 
-RPCSRC= ${.DESTDIR}/usr/include/rpcsvc/yp.x
+RPCDIR= ${.CURDIR}/../../include/rpcsvc
 RPCGEN= rpcgen -I -C
 
-ypxfr_clnt.c: ${RPCSRC} yp.h
-	${RPCGEN} -DYPPUSH_ONLY -l -o ${.TARGET} ${RPCSRC}
+ypxfr_clnt.c: ${RPCDIR}/yp.x yp.h
+	rm -f ${.TARGET}
+	${RPCGEN} -DYPPUSH_ONLY -l -o ${.TARGET} ${RPCDIR}/yp.x
+
+yp_clnt.c: ${RPCDIR}/yp.x yp.h
+	rm -f ${.TARGET}
+	${RPCGEN} -DYPSERV_ONLY -l -o ${.TARGET} ${RPCDIR}/yp.x
+
+yp.h: ${RPCDIR}/yp.x
+	rm -f ${.TARGET}
+	${RPCGEN} -h -o ${.TARGET} ${RPCDIR}/yp.x
 
-yp_clnt.c: ${RPCSRC} yp.h
-	${RPCGEN} -DYPSERV_ONLY -l -o ${.TARGET} ${RPCSRC}
+# ypxfrd_xdr.c: ${RPCDIR}/ypxfrd.x ypxfrd.h
+#	rm -f ${.TARGET}
+#	${RPCGEN} -c -o ${.TARGET} ${RPCDIR}/ypxfrd.x
 
-yp.h: ${RPCSRC}
-	${RPCGEN} -h -o ${.TARGET} ${RPCSRC}
+ypxfrd.h: ${RPCDIR}/ypxfrd.x
+	rm -f ${.TARGET}
+	${RPCGEN} -h -o ${.TARGET} ${RPCDIR}/ypxfrd.x
 
 .include <bsd.prog.mk>
diff --git a/libexec/ypxfr/yp_dbwrite.c b/libexec/ypxfr/yp_dbwrite.c
index 8d0c007..2989d2a 100644
--- a/libexec/ypxfr/yp_dbwrite.c
+++ b/libexec/ypxfr/yp_dbwrite.c
@@ -29,7 +29,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: yp_dbwrite.c,v 1.9 1996/02/04 04:08:11 wpaul Exp wpaul $
+ *	$Id: yp_dbwrite.c,v 1.10 1996/06/03 03:11:25 wpaul Exp $
  *
  */
 #include <stdio.h>
@@ -46,7 +46,7 @@
 #include "ypxfr_extern.h"
 
 #ifndef lint
-static const char rcsid[] = "$Id: yp_dbwrite.c,v 1.9 1996/02/04 04:08:11 wpaul Exp wpaul $";
+static const char rcsid[] = "$Id: yp_dbwrite.c,v 1.10 1996/06/03 03:11:25 wpaul Exp $";
 #endif
 
 #define PERM_SECURE (S_IRUSR|S_IWUSR)
@@ -54,9 +54,10 @@ static const char rcsid[] = "$Id: yp_dbwrite.c,v 1.9 1996/02/04 04:08:11 wpaul E
 /*
  * Open a DB database read/write
  */
-DB *yp_open_db_rw(domain, map)
+DB *yp_open_db_rw(domain, map, flags)
 	const char *domain;
 	const char *map;
+	const int flags;
 {
 	DB *dbp;
 	char buf[1025];
@@ -69,9 +70,10 @@ DB *yp_open_db_rw(domain, map)
 		return (NULL);
 	}
 
-	snprintf(buf, sizeof(buf), "%s/%s/%s", yp_dir, domain, map);
+#define FLAGS O_RDWR|O_EXLOCK|O_EXCL|O_CREAT
 
-	dbp = dbopen(buf,O_RDWR|O_EXLOCK|O_EXCL|O_CREAT, PERM_SECURE, DB_HASH, &openinfo);
+	snprintf(buf, sizeof(buf), "%s/%s/%s", yp_dir, domain, map);
+	dbp = dbopen(buf,flags ? flags : FLAGS,PERM_SECURE,DB_HASH,&openinfo);
 
 	if (dbp == NULL) {
 		switch(errno) {
@@ -90,14 +92,16 @@ DB *yp_open_db_rw(domain, map)
 	return (dbp);
 }
 
-int yp_put_record(dbp,key,data)
+int yp_put_record(dbp,key,data,allow_overwrite)
 	DB *dbp;
 	DBT *key;
 	DBT *data;
+	int allow_overwrite;
 {
 	int rval;
 
-	if ((rval = (dbp->put)(dbp,key,data,R_NOOVERWRITE))) {
+	if ((rval = (dbp->put)(dbp,key,data, allow_overwrite ? 0 :
+							R_NOOVERWRITE))) {
 		switch(rval) {
 		case 1:
 			return(YP_FALSE);
diff --git a/libexec/ypxfr/ypxfr.8 b/libexec/ypxfr/ypxfr.8
index 188f22b..285c258 100644
--- a/libexec/ypxfr/ypxfr.8
+++ b/libexec/ypxfr/ypxfr.8
@@ -28,7 +28,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$Id: ypxfr.8,v 1.1.1.1 1995/12/25 03:07:13 wpaul Exp $
+.\"	$Id: ypxfr.8,v 1.3 1996/06/05 04:07:04 wpaul Exp $
 .\"
 .Dd February 5, 1995
 .Dt YPXFR 8
@@ -122,6 +122,30 @@ is invoked without a controlling terminal, e.g. from inside
 it logs all its output using the
 .Xr syslog 3
 facility.
+.Sh NOTES
+The FreeBSD version of
+.Nm ypxfr
+has support for a special map transfer protocol which works in
+conjunction with the FreeBSD
+.Xr rpc.ypxfrd 8
+server. This protocol allows it to transfer raw map database files from
+the NIS master server and can be many times faster than the standard
+transfer method, particularly for very large NIS maps. The
+.Nm ypxfr
+command will check to see if the
+.Xr rpc.ypxfrd 8
+server is registered on the NIS master server and attempt to use
+it if it is present. If it isn't it will fall back to the standard
+transfer method, copying the map contents from
+.Xr ypserv 8
+and creating new maps instead.
+.Pp
+Note that while the FreeBSD ypxfrd protocol is conceptually similar
+to the SunOS ypxfrd protocol, FreeBSD's protocol is not compatible with
+Sun's, therefore it will not work with Sun's ypxfrd server. FreeBSD
+slave systems can still transfer maps from any non-FreeBSD NIS server,
+however they will only be able to take advantage of the faster protocol
+if the master server is also running FreeBSD.
 .Sh OPTIONS
 The following options and flags are supported by
 .Nm ypxfr :
diff --git a/libexec/ypxfr/ypxfr_extern.h b/libexec/ypxfr/ypxfr_extern.h
index b2eda88..b18282e 100644
--- a/libexec/ypxfr/ypxfr_extern.h
+++ b/libexec/ypxfr/ypxfr_extern.h
@@ -29,12 +29,15 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: ypxfr_extern.h,v 1.5 1995/12/24 04:37:22 wpaul Exp $
+ *	$Id: ypxfr_extern.h,v 1.7 1996/06/03 03:10:42 wpaul Exp $
  */
 #include <sys/types.h>
 #include <limits.h>
-#include <db.h>
 #include <paths.h>
+#include <db.h>
+
+extern HASHINFO	openinfo;
+extern BTREEINFO openinfo_b;
 
 #ifndef _PATH_YP
 #define _PATH_YP "/var/yp/"
@@ -42,16 +45,17 @@
 
 extern char	*yp_dir;
 extern int	debug;
-extern HASHINFO	openinfo;
 extern int	yp_errno;
 extern void	yp_error __P(( const char *, ... ));
 extern int	_yp_check __P(( char ** ));
 extern char	*ypxfrerr_string __P(( ypxfrstat ));
-extern DB	*yp_open_db_rw __P(( const char *, const char *));
-extern int	yp_put_record __P(( DB *, DBT *, DBT * ));
+extern DB	*yp_open_db_rw __P(( const char *, const char *, const int));
+extern void	yp_init_dbs __P(( void ));
+extern int	yp_put_record __P(( DB *, DBT *, DBT * , int ));
 extern int	yp_get_record __P(( const char *, const char *, const DBT *, DBT *, int ));
 extern int	ypxfr_get_map __P(( char *, char *, char *, int (*)() ));
 extern char	*ypxfr_get_master __P(( char *, char *, char *, const int ));
 extern unsigned	long ypxfr_get_order __P(( char *, char *, char *, const int ));
 extern char	*ypxfxerr_string __P(( ypxfrstat ));
+extern int	ypxfrd_get_map __P(( char  *, char *, char *, char *));
 extern int	callrpc __P(( char *, int, int, int, xdrproc_t, char *, xdrproc_t, char *));
diff --git a/libexec/ypxfr/ypxfr_getmap.c b/libexec/ypxfr/ypxfr_getmap.c
index bac203c..a73ee5d 100644
--- a/libexec/ypxfr/ypxfr_getmap.c
+++ b/libexec/ypxfr/ypxfr_getmap.c
@@ -29,7 +29,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: ypxfr_getmap.c,v 1.7 1996/02/03 23:09:28 wpaul Exp $
+ *	$Id: ypxfr_getmap.c,v 1.8 1996/06/02 05:12:24 wpaul Exp $
  */
 #include <stdio.h>
 #include <sys/types.h>
@@ -40,7 +40,7 @@
 #include "ypxfr_extern.h"
 
 #ifndef lint
-static const char rcsid[] = "$Id: ypxfr_getmap.c,v 1.7 1996/02/03 23:09:28 wpaul Exp $";
+static const char rcsid[] = "$Id: ypxfr_getmap.c,v 1.8 1996/06/02 05:12:24 wpaul Exp $";
 #endif
 
 extern bool_t xdr_ypresp_all_seq __P(( XDR *, unsigned long * ));
@@ -75,7 +75,8 @@ int ypxfr_get_map(map, domain, host, callback)
 
 	/* YPPROC_ALL is a TCP service */
 	if ((clnt = clnt_create(host, YPPROG, YPVERS, "tcp")) == NULL) {
-		yp_error("%s", clnt_spcreateerror("failed to tcp handle"));
+		yp_error("%s", clnt_spcreateerror("failed to \
+create tcp handle"));
 		yp_errno = YPXFR_YPERR;
 		return(1);
 	}
diff --git a/libexec/ypxfr/ypxfr_main.c b/libexec/ypxfr/ypxfr_main.c
index cc4e1b4..47684fb 100644
--- a/libexec/ypxfr/ypxfr_main.c
+++ b/libexec/ypxfr/ypxfr_main.c
@@ -29,7 +29,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: ypxfr_main.c,v 1.15 1996/01/10 17:41:55 wpaul Exp $
+ *	$Id: ypxfr_main.c,v 1.17 1996/06/03 03:11:39 wpaul Exp $
  */
 #include <stdio.h>
 #include <stdlib.h>
@@ -47,10 +47,11 @@
 #include <rpcsvc/yp.h>
 struct dom_binding {};
 #include <rpcsvc/ypclnt.h>
+#include <rpcsvc/ypxfrd.h>
 #include "ypxfr_extern.h"
 
 #ifndef lint
-static const char rcsid[] = "$Id: ypxfr_main.c,v 1.15 1996/01/10 17:41:55 wpaul Exp $";
+static const char rcsid[] = "$Id: ypxfr_main.c,v 1.17 1996/06/03 03:11:39 wpaul Exp $";
 #endif
 
 char *progname = "ypxfr";
@@ -86,7 +87,8 @@ static void ypxfr_exit(retval, temp)
 
 		if ((clnt = clntudp_create(&ypxfr_callback_addr, ypxfr_prognum,
 					1, timeout, &sock)) == NULL) {
-			yp_error("%s", clnt_spcreateerror("failed to establish callback handle"));
+			yp_error("%s", clnt_spcreateerror("failed to \
+establish callback handle"));
 			exit(1);
 		}
 
@@ -136,7 +138,7 @@ int ypxfr_foreach(status, key, keylen, val, vallen, data)
 	dbval.data = val;
 	dbval.size = vallen;
 
-	if (yp_put_record(dbp, &dbkey, &dbval) != YP_TRUE)
+	if (yp_put_record(dbp, &dbkey, &dbval, 0) != YP_TRUE)
 		return(yp_errno);
 
 	return (0);
@@ -374,8 +376,16 @@ the local domain name isn't set");
 	snprintf(ypxfr_temp_map, sizeof(ypxfr_temp_map), "%s/%s/%s", yp_dir,
 		 ypxfr_dest_domain, tempmap);
 
+	if (getrpcport(ypxfr_master, YPXFRD_FREEBSD_PROG,
+					YPXFRD_FREEBSD_VERS, IPPROTO_TCP)) {
+		/* Try to send using ypxfrd. If it fails, use old method. */
+		if (!ypxfrd_get_map(ypxfr_master, ypxfr_mapname,
+					ypxfr_source_domain, ypxfr_temp_map))
+			goto leave;
+	}
+
 	/* Open the temporary map read/write. */
-	if ((dbp = yp_open_db_rw(ypxfr_dest_domain, tempmap)) == NULL) {
+	if ((dbp = yp_open_db_rw(ypxfr_dest_domain, tempmap, 0)) == NULL) {
 		yp_error("failed to open temporary map file");
 		ypxfr_exit(YPXFR_DBM,NULL);
 	}
@@ -389,7 +399,7 @@ the local domain name isn't set");
 	data.data = buf;
 	data.size = strlen(buf);
 
-	if (yp_put_record(dbp, &key, &data) != YP_TRUE) {
+	if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) {
 		yp_error("failed to write order number to database");
 		ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map);
 	}
@@ -399,7 +409,7 @@ the local domain name isn't set");
 	data.data = ypxfr_master;
 	data.size = strlen(ypxfr_master);
 
-	if (yp_put_record(dbp, &key, &data) != YP_TRUE) {
+	if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) {
 		yp_error("failed to write master name to database");
 		ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map);
 	}
@@ -409,7 +419,7 @@ the local domain name isn't set");
 	data.data = ypxfr_dest_domain;
 	data.size = strlen(ypxfr_dest_domain);
 
-	if (yp_put_record(dbp, &key, &data) != YP_TRUE) {
+	if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) {
 		yp_error("failed to write domain name to database");
 		ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map);
 	}
@@ -421,7 +431,7 @@ the local domain name isn't set");
 	data.data = &buf;
 	data.size = strlen(buf);
 
-	if (yp_put_record(dbp, &key, &data) != YP_TRUE) {
+	if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) {
 		yp_error("failed to write input name to database");
 		ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map);
 
@@ -435,7 +445,7 @@ the local domain name isn't set");
 	data.data = &buf;
 	data.size = strlen(buf);
 
-	if (yp_put_record(dbp, &key, &data) != YP_TRUE) {
+	if (yp_put_record(dbp, &key, &data, 0) != YP_TRUE) {
 		yp_error("failed to write output name to database");
 		ypxfr_exit(YPXFR_DBM,&ypxfr_temp_map);
 	}
@@ -451,6 +461,11 @@ the local domain name isn't set");
 	(void)(dbp->close)(dbp);
 	dbp = NULL; /* <- yes, it seems this is necessary. */
 
+leave:
+
+	snprintf(buf, sizeof(buf), "%s/%s/%s", yp_dir, ypxfr_dest_domain,
+							ypxfr_mapname);
+
 	/* Peek at the order number again and check for skew. */
 	if ((ypxfr_skew_check = ypxfr_get_order(ypxfr_source_domain,
 					     ypxfr_mapname,
@@ -466,8 +481,6 @@ the local domain name isn't set");
 
 	/*
 	 * Send a YPPROC_CLEAR to the local ypserv.
-	 * The FreeBSD ypserv doesn't really need this, but we send it
-	 * here anyway for the sake of consistency.
 	 */
 	if (ypxfr_clear) {
 		char in = 0;
diff --git a/libexec/ypxfr/ypxfr_misc.c b/libexec/ypxfr/ypxfr_misc.c
index 77183f4..2c0e895 100644
--- a/libexec/ypxfr/ypxfr_misc.c
+++ b/libexec/ypxfr/ypxfr_misc.c
@@ -29,7 +29,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: ypxfr_misc.c,v 1.2 1996/02/04 05:18:44 wpaul Exp $
+ *	$Id: ypxfr_misc.c,v 1.8 1996/06/02 05:12:00 wpaul Exp $
  */
 #include <stdlib.h>
 #include <unistd.h>
@@ -41,7 +41,7 @@ struct dom_binding {};
 #include "ypxfr_extern.h"
 
 #ifndef lint
-static const char rcsid[] = "$Id: ypxfr_misc.c,v 1.2 1996/02/04 05:18:44 wpaul Exp $";
+static const char rcsid[] = "$Id: ypxfr_misc.c,v 1.8 1996/06/02 05:12:00 wpaul Exp $";
 #endif
 
 char *ypxfrerr_string(code)
@@ -188,7 +188,7 @@ failed"));
 			return(NULL);
 		}
 		snprintf(mastername, sizeof(mastername), "%s", resp->peer);
-/*		xdr_free(xdr_ypresp_master, (char *)&resp);  */
+/*		xdr_free(xdr_ypresp_master, (char *)&resp); */
 		return((char *)&mastername);
 	}
 }
diff --git a/libexec/ypxfr/ypxfrd_getmap.c b/libexec/ypxfr/ypxfrd_getmap.c
new file mode 100644
index 0000000..7af9a52
--- /dev/null
+++ b/libexec/ypxfr/ypxfrd_getmap.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright (c) 1995, 1996
+ *	Bill Paul <wpaul@ctr.columbia.edu>.  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 Bill Paul.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Bill Paul 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 Bill Paul 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.
+ *
+ *	$Id: ypxfrd_getmap.c,v 1.7 1996/06/02 19:51:33 wpaul Exp $
+ */
+
+#include <sys/types.h>
+#include <time.h>
+#include <rpcsvc/ypxfrd.h>
+#include <rpcsvc/yp.h>
+#include <rpc/rpc.h>
+#include <sys/uio.h>
+#include <sys/fcntl.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include "ypxfr_extern.h"
+
+#ifndef lint
+static const char rcsid[] = "$Id: ypxfrd_getmap.c,v 1.7 1996/06/02 19:51:33 wpaul Exp $";
+#endif
+
+int fp = 0;
+
+static bool_t xdr_my_xfr(register XDR *xdrs, xfr *objp)
+{
+	while(1) {
+		if (!xdr_xfr(xdrs, objp))
+			return(FALSE);
+		if (objp->ok == TRUE) {
+			if (write(fp, objp->xfr_u.xfrblock_buf.xfrblock_buf_val,
+			    objp->xfr_u.xfrblock_buf.xfrblock_buf_len) == -1) {
+				yp_error("write failed: %s", strerror(errno));
+				return(FALSE);
+			}
+		}
+		xdr_free(xdr_xfr, (char *)objp);
+		if (objp->ok == FALSE) {
+			switch(objp->xfr_u.xfrstat) {
+			case(XFR_DONE):
+				return(TRUE);
+				break;
+			case(XFR_READ_ERR):
+				yp_error("got read error from rpc.ypxfrd");
+				return(FALSE);
+				break;
+			case(XFR_ACCESS):
+				yp_error("rpc.ypxfrd couldn't access the map");
+				return(FALSE);
+				break;
+			case(XFR_DENIED):
+				yp_error("access to map denied by rpc.ypxfrd");
+				return(FALSE);
+				break;
+			default:
+				yp_error("got unknown status from rpc.ypxfrd");
+				return(FALSE);
+				break;
+			}
+		}
+	}
+}
+
+#define PERM_SECURE (S_IRUSR|S_IWUSR)
+
+int ypxfrd_get_map(host, map, domain, tmpname)
+	char *host;
+	char *map;
+	char *domain;
+	char *tmpname;
+{
+	CLIENT *clnt;
+	struct ypxfr_mapname req;
+	struct xfr resp;
+	struct timeval timeout = { 0, 25 };
+	int status = 0;
+
+	req.xfrmap = map;
+	req.xfrdomain = domain;
+	bzero((char *)&resp, sizeof(resp));
+
+	if ((clnt = clnt_create(host, YPXFRD_FREEBSD_PROG,
+				YPXFRD_FREEBSD_VERS, "tcp")) == NULL) {
+		return(1);
+	}
+
+	if ((fp = open(tmpname, O_RDWR|O_CREAT, PERM_SECURE)) == -1) {
+		clnt_destroy(clnt);
+		yp_error("couldn't open %s: %s", tmpname, strerror(errno));
+		return(1);
+	}
+
+	if (clnt_call(clnt,YPXFRD_GETMAP,xdr_ypxfr_mapname,(char *)&req,
+			xdr_my_xfr, (char *)&resp, timeout) != RPC_SUCCESS) {
+		yp_error("%s", clnt_sperror(clnt,"call to rpc.ypxfrd failed"));
+		status++;
+		unlink(tmpname);
+	}
+
+	clnt_destroy(clnt);
+	close(fp);
+	return(status);
+}