From: Marcin Siodelski <marcin@isc.org>
Date: Fri, 9 Sep 2016 10:35:35 +0000 (+0200)
Subject: [master] Silenced cppcheck warning about unread variable.
X-Git-Tag: trac5006_base~19
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=93ab4a40f460190550b0f2e9a7719e1e6c004306;p=thirdparty%2Fkea.git

[master] Silenced cppcheck warning about unread variable.

This change was okayed on jabber.
---

diff --git a/src/lib/dhcp/pkt_filter_inet.cc b/src/lib/dhcp/pkt_filter_inet.cc
index b5aec1f038..1a0bb8e08a 100644
--- a/src/lib/dhcp/pkt_filter_inet.cc
+++ b/src/lib/dhcp/pkt_filter_inet.cc
@@ -162,14 +162,13 @@ PktFilterInet::receive(Iface& iface, const SocketInfo& socket_info) {
     pkt->setRemotePort(from_port);
     pkt->setLocalPort(socket_info.port_);
 
-    struct cmsghdr* cmsg;
-    cmsg = CMSG_FIRSTHDR(&m);
-
 // Linux systems support IP_PKTINFO option which is used to retrieve the
 // destination address of the received packet. On BSD systems IP_RECVDSTADDR
 // is used instead.
 #if defined (IP_PKTINFO) && defined (OS_LINUX)
     struct in_pktinfo* pktinfo;
+    struct cmsghdr* cmsg = CMSG_FIRSTHDR(&m);
+
     while (cmsg != NULL) {
         if ((cmsg->cmsg_level == IPPROTO_IP) &&
             (cmsg->cmsg_type == IP_PKTINFO)) {
@@ -192,6 +191,7 @@ PktFilterInet::receive(Iface& iface, const SocketInfo& socket_info) {
 
 #elif defined (IP_RECVDSTADDR) && defined (OS_BSD)
     struct in_addr* to_addr;
+    struct cmsghdr* cmsg = CMSG_FIRSTHDR(&m);
 
     while (cmsg != NULL) {
         if ((cmsg->cmsg_level == IPPROTO_IP) &&