full 3.7.1 patch for sendmsg

gistfile1.diff

diff -urN pdns-recursor-git-rec-3.7.1/pdns_recursor.cc pdns-recursor-git-rec-3.7.1-1-g9ce7324/pdns_recursor.cc
--- pdns-recursor-git-rec-3.7.1/pdns_recursor.cc	2015-02-13 10:18:33.000000000 +0100
+++ pdns-recursor-git-rec-3.7.1-1-g9ce7324/pdns_recursor.cc	2015-02-13 10:18:54.000000000 +0100
@@ -688,6 +688,8 @@
       fillMSGHdr(&msgh, &iov, cbuf, 0, (char*)&*packet.begin(), packet.size(), &dc->d_remote);
       if(dc->d_local.sin4.sin_family)
 	addCMsgSrcAddr(&msgh, cbuf, &dc->d_local);
+      else
+        msgh.msg_control=NULL;
       sendmsg(dc->d_socket, &msgh, 0);
       if(!SyncRes::s_nopacketcache && !variableAnswer ) {
         t_packetCache->insertResponsePacket(string((const char*)&*packet.begin(), packet.size()),
@@ -961,6 +963,9 @@
       if(destaddr.sin4.sin_family) {
 	addCMsgSrcAddr(&msgh, cbuf, &destaddr);
       }
+      else {
+        msgh.msg_control=NULL;
+      }
       sendmsg(fd, &msgh, 0);
 
       if(response.length() >= sizeof(struct dnsheader)) {