o Add -4 and -6 flags to a man page and usage(). Bump the man page

date.


git-svn-id: http://svn0.us-east.freebsd.org/base/head/contrib/telnet@139713 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f

telnetd/telnetd.8

@@ -32,7 +32,7 @@
 .\"	@(#)telnetd.8	8.4 (Berkeley) 6/1/94
 .\" $FreeBSD$
 .\"
-.Dd January 27, 2000
+.Dd January 5, 2005
 .Dt TELNETD 8
 .Os
 .Sh NAME
@@ -42,7 +42,7 @@
 protocol server
 .Sh SYNOPSIS
 .Nm /usr/libexec/telnetd
-.Op Fl BUhlkn
+.Op Fl 46BUhlkn
 .Op Fl D Ar debugmode
 .Op Fl S Ar tos
 .Op Fl X Ar authtype
@@ -86,6 +86,14 @@ The
 .Nm
 command accepts the following options:
 .Bl -tag -width indent
+.It Fl 4
+Forces
+.Nm
+to use IPv4 addresses only.
+.It Fl 6
+Forces
+.Nm
+to use IPv6 addresses only.
 .It Fl a Ar authmode
 This option may be used for specifying what mode should
 be used for authentication.

telnetd/telnetd.c

@@ -412,7 +412,8 @@ usage()
 {
 	fprintf(stderr, "usage: telnetd");
 #ifdef	AUTHENTICATION
-	fprintf(stderr, " [-a (debug|other|user|valid|off|none)]\n\t");
+	fprintf(stderr,
+	    " [-4] [-6] [-a (debug|other|user|valid|off|none)]\n\t");
 #endif
 #ifdef BFTPDAEMON
 	fprintf(stderr, " [-B]");