check -m option

1990-05-11 13:11:12 +00:00 · 1990-05-11 13:11:12 +00:00 · 1c9671e2d0
commit 1c9671e2d0
parent 6bfe1fb9a9
1 changed files with 3 additions and 0 deletions
--- 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 ) {