BUGFIX: forced-fail smtp option tls_sni would dereference NULL

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

diff --git a/src/src/host.c b/src/src/host.c
index 0571772cb1b19d35c214a8190e3332cf4c6c0921..785eea412bd33faae15a86278fdf72b29ce0b46d 100644 (file)
--- a/src/src/host.c
+++ b/src/src/host.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* Copyright (c) University of Cambridge 1995 - 2012 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Functions for finding hosts, either by gethostbyname(), gethostbyaddr(), or
@@ -68,7 +68,7 @@ sprintf(addr, "%d.%d.%d.%d",
 very good for the uses to which it is put. When running the regression tests,
 start with a fixed seed.
 
-If you need better, see pseudo_random_number() which is potentially stronger,
+If you need better, see vaguely_random_number() which is potentially stronger,
 if a crypto library is available, but might end up just calling this instead.
 
 Arguments:
@@ -1177,10 +1177,10 @@ host_is_tls_on_connect_port(int port)
 {
 int sep = 0;
 uschar buffer[32];
-uschar *list = tls_on_connect_ports;
+uschar *list = tls_in.on_connect_ports;
 uschar *s;
 
-if (tls_on_connect) return TRUE;
+if (tls_in.on_connect) return TRUE;
 
 while ((s = string_nextinlist(&list, &sep, buffer, sizeof(buffer))) != NULL)
   {
@@ -1597,7 +1597,7 @@ dns_record *rr;
 dns_answer dnsa;
 dns_scan dnss;
 
-host_lookup_deferred = host_lookup_failed = FALSE;
+sender_host_dnssec = host_lookup_deferred = host_lookup_failed = FALSE;
 
 HDEBUG(D_host_lookup)
   debug_printf("looking up host name for %s\n", sender_host_address);
@@ -1639,6 +1639,13 @@ while ((ordername = string_nextinlist(&list, &sep, buffer, sizeof(buffer)))
       int count = 0;
       int old_pool = store_pool;
 
+      /* Ideally we'd check DNSSEC both forward and reverse, but we use the
+      gethost* routines for forward, so can't do that unless/until we rewrite. */
+      sender_host_dnssec = dns_is_secure(&dnsa);
+      DEBUG(D_dns)
+        debug_printf("Reverse DNS security status: %s\n",
+            sender_host_dnssec ? "DNSSEC verified (AD)" : "unverified");
+
       store_pool = POOL_PERM;        /* Save names in permanent storage */
 
       for (rr = dns_next_rr(&dnsa, &dnss, RESET_ANSWERS);