From: Hans Dedecker <dedeckeh@gmail.com>
Date: Thu, 5 Apr 2018 14:51:19 +0000 (+0200)
Subject: script: fix possible negative delay
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=474b5a3a9a25f0aa12e69afd72d7661638ad879d;p=project%2Fodhcp6c.git

script: fix possible negative delay

Fix delay becoming negative when killing a running script

Signed-off-by: Hans Dedecker <dedeckeh@gmail.com>
---

diff --git a/src/script.c b/src/script.c
index 5696b7f..fcdbb27 100644
--- a/src/script.c
+++ b/src/script.c
@@ -393,8 +393,15 @@ void script_call(const char *status, int delay, bool resume)
 	bool running_script = false;
 
 	if (running) {
+		time_t diff = now - started;
+
 		kill(running, SIGTERM);
-		delay -= now - started;
+
+		if (diff > delay)
+			delay -= diff;
+		else
+			delay = 0;
+
 		running_script = true;
 	}