addr might be NULL if we are called from the prefetcher.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@578 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_session.c

@@ -199,8 +199,10 @@ SES_New(struct sockaddr *addr, unsigned len)
 
 	sm->sess.sockaddr = sm->sockaddr;
 	assert(len  < sizeof(sm->sockaddr));
-	memcpy(sm->sess.sockaddr, addr, len);
-	sm->sess.sockaddrlen = len;
+	if (addr != NULL) {
+		memcpy(sm->sess.sockaddr, addr, len);
+		sm->sess.sockaddrlen = len;
+	}
 
 	http_Setup(&sm->http, (void *)(sm + 1), heritage.mem_workspace);