From e9d214e977b9afd687cf15b0e0ffe1302ab70589 Mon Sep 17 00:00:00 2001
From: ceriel <none@none>
Date: Fri, 11 May 1990 13:11:12 +0000
Subject: [PATCH] check -m option

---
 util/ack/main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/util/ack/main.c b/util/ack/main.c
index 5b8dc9e32..5ec702b96 100644
--- a/util/ack/main.c
+++ b/util/ack/main.c
@@ -162,6 +162,9 @@ vieuwargs(argc,argv) char **argv ; {
 		switch ( argp[1] ) {
 	   case 'm':    if ( machine ) fuerror("Two machines?") ;
 			machine= &argp[2];
+			if (*machine == '\0') {
+				fuerror("-m needs machine name");
+			}
 			eaten=1 ;
 			break ;
 	   case 'o':    if ( nextarg>=argc ) {
-- 
2.34.1