Memory management: drop $acl_m_ variables explicitly as they go out-of-scope

[exim.git] / src / src / daemon.c

diff --git a/src/src/daemon.c b/src/src/daemon.c
index d799ea4e85a0b54ba008495af8c398878bf34fc9..ea0c2226259f062a5778c9441275fcde70aea82e 100644 (file)
--- a/src/src/daemon.c
+++ b/src/src/daemon.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2016 */
+/* Copyright (c) University of Cambridge 1995 - 2017 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Functions concerned with running Exim as a daemon */
@@ -564,6 +564,16 @@ if (pid == 0)
 
     /* Reclaim up the store used in accepting this message */
 
+    return_path = sender_address = NULL;
+    authenticated_sender = NULL;
+    sending_ip_address = NULL;
+    deliver_host_address = deliver_host =
+    deliver_domain_orig = deliver_localpart_orig = NULL;
+    dnslist_domain = dnslist_matched = NULL;
+#ifndef DISABLE_DKIM
+    dkim_cur_signer = NULL;
+#endif
+    acl_var_m = NULL;
     store_reset(reset_point);
 
     /* If queue_only is set or if there are too many incoming connections in
@@ -734,6 +744,8 @@ else (void)close(dup_accept_socket);
 the incoming host address and an expanded active_hostname. */
 
 log_close_all();
+interface_address =
+sender_host_address = NULL;
 store_reset(reset_point);
 sender_host_address = NULL;
 }
@@ -1423,6 +1435,9 @@ if (daemon_listen && !inetd_wait_mode)
     necessary for (some release of) USAGI Linux; other IP stacks fail at the
     listen() stage instead. */
 
+#ifdef TCP_FASTOPEN
+    tcp_fastopen_ok = TRUE;
+#endif
     for(;;)
       {
       uschar *msg, *addr;
@@ -1459,7 +1474,10 @@ if (daemon_listen && !inetd_wait_mode)
 #ifdef TCP_FASTOPEN
     if (setsockopt(listen_sockets[sk], IPPROTO_TCP, TCP_FASTOPEN,
                    &smtp_connect_backlog, sizeof(smtp_connect_backlog)))
+      {
       DEBUG(D_any) debug_printf("setsockopt FASTOPEN: %s\n", strerror(errno));
+      tcp_fastopen_ok = FALSE;
+      }
 #endif
 
     /* Start listening on the bound socket, establishing the maximum backlog of