From: Andre Noll <maan@congo.fml.local>
Date: Wed, 23 Aug 2006 18:38:15 +0000 (+0200)
Subject: tv_divide(): Check for division by zero
X-Git-Tag: v0.2.14~32
X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=commitdiff_plain;h=6e2e2739acdbacb5f0d4b4272b0e04f74184c66a

tv_divide(): Check for division by zero
---

diff --git a/time.c b/time.c
index 49b941bb..83231c89 100644
--- a/time.c
+++ b/time.c
@@ -113,7 +113,13 @@ void tv_scale(const unsigned long mult, const struct timeval *tv,
 void tv_divide(const unsigned long divisor, const struct timeval *tv,
 	struct timeval *result)
 {
-	long unsigned q = tv->tv_usec / divisor;
+	long unsigned q;
+
+	if (!divisor) {
+		PARA_EMERG_LOG("%s\n", "division by zero");
+		exit(EXIT_FAILURE);
+	}
+	q = tv->tv_usec / divisor;
 	result->tv_sec = tv->tv_sec / divisor;
 	result->tv_usec = (tv->tv_sec - result->tv_sec * divisor)
 		* 1000 * 1000 / divisor;