From d8656b0189220e73d3a6cd4ebeaec5091824aef1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mattias=20Andr=C3=A9e?= <maandree@kth.se>
Date: Wed, 11 Jul 2018 20:53:17 +0200
Subject: [PATCH] uname: check that no operands are specified
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Signed-off-by: Mattias Andrée <maandree@kth.se>
---
 uname.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/uname.c b/uname.c
index dfc979e..122c172 100644
--- a/uname.c
+++ b/uname.c
@@ -40,6 +40,9 @@ main(int argc, char *argv[])
 		usage();
 	} ARGEND
 
+	if (argc)
+		usage();
+
 	if (uname(&u) < 0)
 		eprintf("uname:");