===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/cu/cu.1,v
retrieving revision 1.9
retrieving revision 1.10
diff -u -r1.9 -r1.10
--- src/usr.bin/cu/cu.1	2013/03/11 12:47:49	1.9
+++ src/usr.bin/cu/cu.1	2014/03/26 13:00:50	1.10
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: cu.1,v 1.9 2013/03/11 12:47:49 nicm Exp $
+.\"	$OpenBSD: cu.1,v 1.10 2014/03/26 13:00:50 nicm Exp $
 .\"
 .\" Copyright (c) 1980, 1990, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -29,7 +29,7 @@
 .\"
 .\"	@(#)tip.1	8.4 (Berkeley) 4/18/94
 .\"
-.Dd $Mdocdate: March 11 2013 $
+.Dd $Mdocdate: March 26 2014 $
 .Dt CU 1
 .Os
 .Sh NAME
@@ -39,6 +39,7 @@
 .Nm
 .Op Fl l Ar line
 .Op Fl s Ar speed \*(Ba Fl Ar speed
+.Op Ar host
 .Sh DESCRIPTION
 .Nm
 is used to connect to another system over a serial link.
@@ -72,6 +73,21 @@
 The default is 9600.
 .El
 .Pp
+If
+.Ar host
+is given,
+.Nm
+uses the
+.Xr remote 5
+host description file to retrieve the
+.Sy dv Pq device
+and
+.Sy br Pq baud rate
+capabilities for that host.
+The
+.Nm
+utility ignores other capabilities found in that database.
+.Pp
 Typed characters are normally transmitted directly to the remote
 machine (which does the echoing as well).
 A tilde
@@ -135,6 +151,17 @@
 .Nm
 guards against multiple users connecting to a remote system by opening
 modems and terminal lines with exclusive access.
+.Sh ENVIRONMENT
+If
+.Ev REMOTE
+is set and begins with a slash, the named file is searched before the
+.Xr remote 5
+host description file; otherwise it is searched for as a host.
+.Sh FILES
+.Bl -tag -width /etc/remote
+.It Pa /etc/remote
+host description file
+.El
 .Sh HISTORY
 The
 .Nm