Copyright year bumps for substantive changes 2017

[exim.git] / src / src / routers / dnslookup.c

diff --git a/src/src/routers/dnslookup.c b/src/src/routers/dnslookup.c
index b4ad5eafd426f95eaa4a98d44a9b4510a76c5442..5017efbee8793a552263166c42f3b6924e292029 100644 (file)
--- a/src/src/routers/dnslookup.c
+++ b/src/src/routers/dnslookup.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* Copyright (c) University of Cambridge 1995 - 2017 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 #include "../exim.h"
@@ -44,6 +44,22 @@ address can appear in the tables drtables.c. */
 int dnslookup_router_options_count =
   sizeof(dnslookup_router_options)/sizeof(optionlist);
 
+
+#ifdef MACRO_PREDEF
+
+/* Dummy entries */
+dnslookup_router_options_block dnslookup_router_option_defaults = {0};
+void dnslookup_router_init(router_instance *rblock) {}
+int dnslookup_router_entry(router_instance *rblock, address_item *addr,
+  struct passwd *pw, int verify, address_item **addr_local,
+  address_item **addr_remote, address_item **addr_new,
+  address_item **addr_succeed) {return 0;}
+
+#else   /*!MACRO_PREDEF*/
+
+
+
+
 /* Default private options block for the dnslookup router. */
 
 dnslookup_router_options_block dnslookup_router_option_defaults = {
@@ -291,6 +307,11 @@ for (;;)
   /* Deferral returns forthwith, and anything other than failure breaks the
   loop. */
 
+  if (rc == HOST_FIND_SECURITY)
+    {
+    addr->message = US"host lookup done insecurely";
+    return DEFER;
+    }
   if (rc == HOST_FIND_AGAIN)
     {
     if (rblock->pass_on_timeout)
@@ -305,6 +326,22 @@ for (;;)
 
   if (rc != HOST_FIND_FAILED) break;
 
+  if (ob->fail_defer_domains)
+    switch(match_isinlist(fully_qualified_name,
+         CUSS &ob->fail_defer_domains, 0,
+         &domainlist_anchor, addr->domain_cache, MCL_DOMAIN, TRUE, NULL))
+      {
+      case DEFER:
+       addr->message = US"lookup defer for fail_defer_domains option";
+       return DEFER;
+
+      case OK:
+       DEBUG(D_route) debug_printf("%s router: matched fail_defer_domains\n",
+         rblock->name);
+       addr->message = US"missing MX, or all MXs point to missing A records,"
+         " and defer requested";
+       return DEFER;
+      }
   /* Check to see if the failure is the result of MX records pointing to
   non-existent domains, and if so, set an appropriate error message; the case
   of an MX or SRV record pointing to "." is another special case that we can
@@ -335,22 +372,6 @@ for (;;)
           addr->message);
         }
       }
-    if (ob->fail_defer_domains)
-      {
-      switch(match_isinlist(fully_qualified_name,
-           CUSS &ob->fail_defer_domains, 0,
-           &domainlist_anchor, addr->domain_cache, MCL_DOMAIN, TRUE, NULL))
-       {
-       case DEFER:
-         addr->message = US"lookup defer for fail_defer_domains";
-         return DEFER;
-
-       case OK:
-         DEBUG(D_route) debug_printf("%s router: matched fail_defer_domains\n",
-           rblock->name);
-         return DEFER;
-       }
-      }
     return DECLINE;
     }
 
@@ -441,6 +462,7 @@ return rf_queue_add(addr, addr_local, addr_remote, rblock, pw)?
   OK : DEFER;
 }
 
+#endif   /*!MACRO_PREDEF*/
 /* End of routers/dnslookup.c */
 /* vi: aw ai sw=2
 */