From d3d2905cbc36da5333c44ede4c098b27fa77f59f Mon Sep 17 00:00:00 2001
From: des <des@FreeBSD.org>
Date: Thu, 17 Dec 1998 11:05:57 +0000
Subject: Add an option for insecure mode, in which rwhod does not discard
 packets from incorrect source ports.

---
 usr.sbin/rwhod/rwhod.8 | 11 ++++++++++-
 usr.sbin/rwhod/rwhod.c |  9 ++++++---
 2 files changed, 16 insertions(+), 4 deletions(-)

(limited to 'usr.sbin/rwhod')

diff --git a/usr.sbin/rwhod/rwhod.8 b/usr.sbin/rwhod/rwhod.8
index a7243e4..f1aa636 100644
--- a/usr.sbin/rwhod/rwhod.8
+++ b/usr.sbin/rwhod/rwhod.8
@@ -39,6 +39,7 @@
 .Nd system status server
 .Sh SYNOPSIS
 .Nm rwhod
+.Op Fl i
 .Op Fl m Op Ar ttl
 .Sh DESCRIPTION
 .Nm Rwhod
@@ -64,6 +65,12 @@ them in a collection of files located in the directory
 .Pa /var/rwho .
 .Pp
 The
+.Fl i
+option enables insecure mode, which causes
+.Nm
+to ignore the source port on incoming packets.
+.Pp
+The
 .Fl m
 option causes
 .Nm
@@ -163,7 +170,9 @@ Messages received by the
 .Nm rwho
 server are discarded unless they originated at an
 .Nm rwho
-server's port.  In addition, if the host's name, as specified
+server's port or the
+.Fl i
+option was specified.  In addition, if the host's name, as specified
 in the message, contains any unprintable
 .Tn ASCII
 characters, the
diff --git a/usr.sbin/rwhod/rwhod.c b/usr.sbin/rwhod/rwhod.c
index 229d1f17..dcd6def 100644
--- a/usr.sbin/rwhod/rwhod.c
+++ b/usr.sbin/rwhod/rwhod.c
@@ -42,7 +42,7 @@ static const char copyright[] =
 static char sccsid[] = "@(#)rwhod.c	8.1 (Berkeley) 6/6/93";
 #endif
 static const char rcsid[] =
-	"$Id$";
+	"$Id: rwhod.c,v 1.7 1997/10/13 11:27:55 charnier Exp $";
 #endif /* not lint */
 
 #include <sys/param.h>
@@ -115,6 +115,7 @@ static const char rcsid[] =
 #define INADDR_WHOD_GROUP (u_long)0xe0000103      /* 224.0.1.3 */
 					  /* (belongs in protocols/rwhod.h) */
 
+int			insecure_mode;
 int			multicast_mode  = NO_MULTICAST;
 int			multicast_scope;
 struct sockaddr_in	multicast_addr  = { sizeof multicast_addr, AF_INET };
@@ -194,6 +195,8 @@ main(argc, argv)
 			}
 			else multicast_mode = PER_INTERFACE_MULTICAST;
 		}
+		else if (strcmp(*argv, "-i") == 0)
+		    insecure_mode = 1;
 		else
 			usage();
 		argv++, argc--;
@@ -265,7 +268,7 @@ main(argc, argv)
 				syslog(LOG_WARNING, "recv: %m");
 			continue;
 		}
-		if (from.sin_port != sp->s_port) {
+		if (from.sin_port != sp->s_port && !insecure_mode) {
 			syslog(LOG_WARNING, "%d: bad from port",
 				ntohs(from.sin_port));
 			continue;
@@ -319,7 +322,7 @@ main(argc, argv)
 static void
 usage()
 {
-	fprintf(stderr, "usage: rwhod [-m [ttl]]\n");
+	fprintf(stderr, "usage: rwhod [-i] [-m [ttl]]\n");
 	exit(1);
 }
 
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