Print usage() when -l and -s are both given in cmp(1)

This is unspecified behaviour, not undefined by POSIX. So we break out here.
2015-03-11 13:31:08 +01:00
parent 695153ac18
commit e11717ab3b
1 changed files with 1 additions and 1 deletions
--- a/cmp.c
+++ b/cmp.c
@@ -28,7 +28,7 @@ main(int argc, char *argv[])
 		usage();
 	} ARGEND;

-	if (argc != 2)
+	if (argc != 2 || (lflag && sflag))
 		usage();

 	for (n = 0; n < 2; n++) {