From 33f70281d768c5a42972510512c8c0967d757bb7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Wed, 6 Jun 2012 16:56:19 +0200
Subject: [PATCH] systemctl: check the argument to -t for invalid values

Systemctl accepted anything as the argument for -t, and simply said '0
units found'. It is better to catch this user error early.
(cherry picked from commit 6d97280899a766ad7b4a6b07cc803709a08b364b)
---
 src/systemctl/systemctl.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index 2cc016e..bfc65a0 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -4579,6 +4579,10 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
                         return 0;
 
                 case 't':
+                        if (unit_type_from_string(optarg) < 0) {
+                                log_error("Invalid unit type '%s'.", optarg);
+                                return -EINVAL;
+                        }
                         arg_type = optarg;
                         break;