From 538a48501430532406b95c8fba07528f2db29998 Mon Sep 17 00:00:00 2001
From: steve <steve@FreeBSD.org>
Date: Mon, 25 May 1998 07:19:07 +0000
Subject: Only allow 'who' and 'who am i' as valid usages.

PR:		6294
Submitted by:	Ruslan Ermilov <ru@ucb.crimea.ua>
---
 usr.bin/who/who.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'usr.bin/who/who.c')

diff --git a/usr.bin/who/who.c b/usr.bin/who/who.c
index 90cde1a..10bd580 100644
--- a/usr.bin/who/who.c
+++ b/usr.bin/who/who.c
@@ -45,7 +45,7 @@ static const char copyright[] =
 static char sccsid[] = "@(#)who.c	8.1 (Berkeley) 6/6/93";
 #endif
 static const char rcsid[] =
-	"$Id: who.c,v 1.5 1997/08/26 11:14:57 charnier Exp $";
+	"$Id: who.c,v 1.6 1998/04/26 19:10:51 des Exp $";
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -54,6 +54,7 @@ static const char rcsid[] =
 #include <locale.h>
 #include <pwd.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <time.h>
 #include <unistd.h>
@@ -73,6 +74,9 @@ main(argc, argv)
 	FILE *ufp, *file();
 	char *t;
 
+	if (getopt(argc, argv, "") != -1)
+		usage();
+
 	(void) setlocale(LC_TIME, "");
 
 	switch (argc) {
-- 
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