From: Marcin Siodelski <marcin@isc.org>
Date: Tue, 31 May 2016 09:37:28 +0000 (+0200)
Subject: [3572] Discard DHCPv4 host options container if it is empty.
X-Git-Tag: trac4272a_base~3^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=97113367f5c999d9c2030a5e9ec464b63879b7da;p=thirdparty%2Fkea.git

[3572] Discard DHCPv4 host options container if it is empty.

This is a small performance improvement.
---

diff --git a/src/bin/dhcp4/dhcp4_srv.cc b/src/bin/dhcp4/dhcp4_srv.cc
index 47afca878a..05333e0cb7 100644
--- a/src/bin/dhcp4/dhcp4_srv.cc
+++ b/src/bin/dhcp4/dhcp4_srv.cc
@@ -926,7 +926,7 @@ Dhcpv4Srv::buildCfgOptionList(Dhcpv4Exchange& ex) {
 
     // Firstly, host specific options.
     const ConstHostPtr& host = ex.getContext()->host_;
-    if (host) {
+    if (host && !host->getCfgOption4()->empty()) {
         co_list.push_back(host->getCfgOption4());
     }