From d2617917be7422b60cf2b1464067242380e5481f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <marmarek@invisiblethingslab.com>
Date: Mon, 5 Oct 2015 05:54:21 +0200
Subject: [PATCH] qvm-prefs: refuse negative 'qrexec_timeout' value

This should be done in QubesVm class (property setter). But since we're
going to rewrite both qvm-prefs and QubesVm, settle on smaller change
for now.

Fixes QubesOS/qubes-issues#1273
---
 qvm-tools/qvm-prefs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/qvm-tools/qvm-prefs b/qvm-tools/qvm-prefs
index 021399aa..4ee1db1e 100755
--- a/qvm-tools/qvm-prefs
+++ b/qvm-tools/qvm-prefs
@@ -461,6 +461,10 @@ def set_qrexec_timeout(vms, vm, args):
         print >> sys.stderr, "Missing timeout value (seconds)!"
         return False
 
+    if int(args[0]) < 0:
+        print >> sys.stderr, "Negative timeout value not allowed!"
+        return False
+
     vm.qrexec_timeout = int(args[0])
     return True