NB: big update - may break stuff. Please test!

 - (djm) OpenBSD CVS sync:
   - markus@cvs.openbsd.org  2001/02/03 03:08:38
     [auth-options.c auth-rh-rsa.c auth-rhosts.c auth.c canohost.c]
     [canohost.h servconf.c servconf.h session.c sshconnect1.c sshd.8]
     [sshd_config]
     make ReverseMappingCheck optional in sshd_config; ok djm@,dugsong@
   - markus@cvs.openbsd.org  2001/02/03 03:19:51
     [ssh.1 sshd.8 sshd_config]
     Skey is now called ChallengeResponse
   - markus@cvs.openbsd.org  2001/02/03 03:43:09
     [sshd.8]
     use no-pty option in .ssh/authorized_keys* if you need a 8-bit clean
     channel. note from Erik.Anggard@cygate.se (pr/1659)
   - stevesk@cvs.openbsd.org 2001/02/03 10:03:06
     [ssh.1]
     typos; ok markus@
   - djm@cvs.openbsd.org     2001/02/04 04:11:56
     [scp.1 sftp-server.c ssh.1 sshd.8 sftp-client.c sftp-client.h]
     [sftp-common.c sftp-common.h sftp-int.c sftp-int.h sftp.1 sftp.c]
     Basic interactive sftp client; ok theo@
 - (djm) Update RPM specs for new sftp binary
 - (djm) Update several bits for new optional reverse lookup stuff. I
   think I got them all.
diff --git a/auth-rh-rsa.c b/auth-rh-rsa.c
index 87d5154..0edbdb5 100644
--- a/auth-rh-rsa.c
+++ b/auth-rh-rsa.c
@@ -13,7 +13,7 @@
  */
 
 #include "includes.h"
-RCSID("$OpenBSD: auth-rh-rsa.c,v 1.21 2001/01/21 19:05:42 markus Exp $");
+RCSID("$OpenBSD: auth-rh-rsa.c,v 1.22 2001/02/03 10:08:36 markus Exp $");
 
 #include "packet.h"
 #include "xmalloc.h"
@@ -49,7 +49,8 @@
 	if (!auth_rhosts(pw, client_user))
 		return 0;
 
-	canonical_hostname = get_canonical_hostname();
+	canonical_hostname = get_canonical_hostname(
+	    options.reverse_mapping_check);
 
 	debug("Rhosts RSA authentication: canonical host %.900s", canonical_hostname);