From: Mark Andrews <marka@isc.org>
Date: Mon, 30 Jun 2014 23:52:02 +0000 (+1000)
Subject: silence coverity - reviewed by Evan over jabber
X-Git-Tag: v9.10.1b2~70
X-Git-Url: http://git.ipfire.org/gitweb/?a=commitdiff_plain;h=ae67e0357283ef4efaf560ff556385bf1dffd57b;p=thirdparty%2Fbind9.git

silence coverity - reviewed by Evan over jabber

(cherry picked from commit e31a37787bbde482e2e26f89d8ad4c2ada5cc3b8)
---

diff --git a/lib/isc/netaddr.c b/lib/isc/netaddr.c
index acb44acebdc..dcbfba42eae 100644
--- a/lib/isc/netaddr.c
+++ b/lib/isc/netaddr.c
@@ -240,7 +240,7 @@ isc_netaddr_prefixok(const isc_netaddr_t *na, unsigned int prefixlen) {
 			return (ISC_R_FAILURE);
 		nbytes++;
 	}
-	if (memcmp(p + nbytes, zeros, ipbytes - nbytes) != 0)
+	if (nbytes < ipbytes && memcmp(p + nbytes, zeros, ipbytes - nbytes) != 0)
 		return (ISC_R_FAILURE);
 	return (ISC_R_SUCCESS);
 }