- better documenting of `host' and `port[s]'

- note that -l ignores timeouts

1 files changed, 25 insertions, 4 deletions

diff --git a/usr.bin/nc/nc.1 b/usr.bin/nc/nc.1
index 02d536bddb2..8379cdcffd2 100644
--- a/usr.bin/nc/nc.1
+++ b/usr.bin/nc/nc.1
@@ -1,4 +1,4 @@
-.\"     $OpenBSD: nc.1,v 1.34 2004/12/31 15:23:31 jmc Exp $
+.\"     $OpenBSD: nc.1,v 1.35 2005/01/07 10:07:35 jmc Exp $
 .\"
 .\" Copyright (c) 1996 David Sacerdote
 .\" All rights reserved.
@@ -65,9 +65,6 @@ of sending them to standard output, as
 .Xr telnet 1
 does with some.
 .Pp
-Destination ports can be single integers or ranges.
-Ranges are in the form nn-mm.
-.Pp
 Common uses include:
 .Pp
 .Bl -bullet -offset indent -compact
@@ -124,6 +121,9 @@ It is an error to use this option in conjunction with the
 or
 .Fl z
 options.
+Additionally, the
+.Fl w
+option is ignored.
 .It Fl n
 Do not do any DNS or service lookups on any specified addresses,
 hostnames or ports.
@@ -211,6 +211,27 @@ It is an error to use this option in conjunction with the
 .Fl l
 option.
 .El
+.Pp
+.Ar hostname
+can be a numerical IP address or a symbolic hostname
+(unless the
+.Fl n
+option is given).
+In general, a hostname must be specified,
+unless the
+.Fl l
+option is given
+(in which case the local host is used).
+.Pp
+.Ar port Ns Op Ar s
+can be single integers or ranges.
+Ranges are in the form nn-mm.
+In general,
+a destination port must be specified,
+unless the
+.Fl U
+option is given
+(in which case a socket must be specified).
 .Sh CLIENT/SERVER MODEL
 It is quite simple to build a very basic client/server model using
 .Nm .