Produce a more useful error message if an SMTP transport's hosts

[exim.git] / src / src / transports / smtp.c

diff --git a/src/src/transports/smtp.c b/src/src/transports/smtp.c
index 537f32aa512373ea78366b0d1e5e3e55479e6fb7..e8354ad7a449b1f88c6f1a945fcccf3abcced536 100644 (file)
--- a/src/src/transports/smtp.c
+++ b/src/src/transports/smtp.c
@@ -1,4 +1,4 @@
-/* $Cambridge: exim/src/src/transports/smtp.c,v 1.37 2007/06/18 13:57:50 ph10 Exp $ */
+/* $Cambridge: exim/src/src/transports/smtp.c,v 1.40 2008/09/05 16:59:48 fanf2 Exp $ */
 
 /*************************************************
 *     Exim - an Internet mail transport agent    *
@@ -39,7 +39,7 @@ optionlist smtp_transport_options[] = {
       (void *)offsetof(smtp_transport_options_block, data_timeout) },
   { "delay_after_cutoff", opt_bool,
       (void *)offsetof(smtp_transport_options_block, delay_after_cutoff) },
-#ifdef EXPERIMENTAL_DOMAINKEYS
+  #if (defined EXPERIMENTAL_DOMAINKEYS) || (defined EXPERIMENTAL_DKIM)
   { "dk_canon", opt_stringptr,
       (void *)offsetof(smtp_transport_options_block, dk_canon) },
   { "dk_domain", opt_stringptr,
@@ -52,7 +52,19 @@ optionlist smtp_transport_options[] = {
       (void *)offsetof(smtp_transport_options_block, dk_selector) },
   { "dk_strict", opt_stringptr,
       (void *)offsetof(smtp_transport_options_block, dk_strict) },
-#endif
+  { "dkim_canon", opt_stringptr,
+      (void *)offsetof(smtp_transport_options_block, dkim_canon) },
+  { "dkim_domain", opt_stringptr,
+      (void *)offsetof(smtp_transport_options_block, dkim_domain) },
+  { "dkim_private_key", opt_stringptr,
+      (void *)offsetof(smtp_transport_options_block, dkim_private_key) },
+  { "dkim_selector", opt_stringptr,
+      (void *)offsetof(smtp_transport_options_block, dkim_selector) },
+  { "dkim_sign_headers", opt_stringptr,
+      (void *)offsetof(smtp_transport_options_block, dkim_sign_headers) },
+  { "dkim_strict", opt_stringptr,
+      (void *)offsetof(smtp_transport_options_block, dkim_strict) },
+  #endif
   { "dns_qualify_single",   opt_bool,
       (void *)offsetof(smtp_transport_options_block, dns_qualify_single) },
   { "dns_search_parents",   opt_bool,
@@ -195,13 +207,19 @@ smtp_transport_options_block smtp_transport_option_defaults = {
   NULL,                /* tls_verify_certificates */
   TRUE                 /* tls_tempfail_tryclear */
   #endif
-  #ifdef EXPERIMENTAL_DOMAINKEYS
+  #if (defined EXPERIMENTAL_DOMAINKEYS) || (defined EXPERIMENTAL_DKIM)
  ,NULL,                /* dk_canon */
   NULL,                /* dk_domain */
   NULL,                /* dk_headers */
   NULL,                /* dk_private_key */
   NULL,                /* dk_selector */
   NULL                 /* dk_strict */
+ ,NULL,                /* dkim_canon */
+  NULL,                /* dkim_domain */
+  NULL,                /* dkim_private_key */
+  NULL,                /* dkim_selector */
+  NULL,                /* dkim_sign_headers */
+  NULL                 /* dkim_strict */
   #endif
 };
 
@@ -1573,23 +1591,24 @@ if (!ok) ok = TRUE; else
   DEBUG(D_transport|D_v)
     debug_printf("  SMTP>> writing message and terminating \".\"\n");
   transport_count = 0;
-#ifdef EXPERIMENTAL_DOMAINKEYS
-  if ( (ob->dk_private_key != NULL) && (ob->dk_selector != NULL) )
-    ok = dk_transport_write_message(addrlist, inblock.sock,
-      topt_use_crlf | topt_end_dot | topt_escape_headers |
-        (tblock->body_only? topt_no_headers : 0) |
-        (tblock->headers_only? topt_no_body : 0) |
-        (tblock->return_path_add? topt_add_return_path : 0) |
-        (tblock->delivery_date_add? topt_add_delivery_date : 0) |
-        (tblock->envelope_to_add? topt_add_envelope_to : 0),
-      0,            /* No size limit */
-      tblock->add_headers, tblock->remove_headers,
-      US".", US"..",    /* Escaping strings */
-      tblock->rewrite_rules, tblock->rewrite_existflags,
-      ob->dk_private_key, ob->dk_domain, ob->dk_selector,
-      ob->dk_canon, ob->dk_headers, ob->dk_strict);
-  else
-#endif
+#if (defined EXPERIMENTAL_DOMAINKEYS) || (defined EXPERIMENTAL_DKIM)
+  ok = dkim_transport_write_message(addrlist, inblock.sock,
+    topt_use_crlf | topt_end_dot | topt_escape_headers |
+      (tblock->body_only? topt_no_headers : 0) |
+      (tblock->headers_only? topt_no_body : 0) |
+      (tblock->return_path_add? topt_add_return_path : 0) |
+      (tblock->delivery_date_add? topt_add_delivery_date : 0) |
+      (tblock->envelope_to_add? topt_add_envelope_to : 0),
+    0,            /* No size limit */
+    tblock->add_headers, tblock->remove_headers,
+    US".", US"..",    /* Escaping strings */
+    tblock->rewrite_rules, tblock->rewrite_existflags,
+    ob->dkim_private_key, ob->dkim_domain, ob->dkim_selector,
+    ob->dkim_canon, ob->dkim_strict, ob->dkim_sign_headers,
+    ob->dk_private_key, ob->dk_domain, ob->dk_selector,
+    ob->dk_canon, ob->dk_headers, ob->dk_strict
+    );
+#else
   ok = transport_write_message(addrlist, inblock.sock,
     topt_use_crlf | topt_end_dot | topt_escape_headers |
       (tblock->body_only? topt_no_headers : 0) |
@@ -1601,6 +1620,7 @@ if (!ok) ok = TRUE; else
     tblock->add_headers, tblock->remove_headers,
     US".", US"..",    /* Escaping strings */
     tblock->rewrite_rules, tblock->rewrite_existflags);
+#endif
 
   /* transport_write_message() uses write() because it is called from other
   places to write to non-sockets. This means that under some OS (e.g. Solaris)
@@ -2244,6 +2264,15 @@ if (hostlist == NULL || (ob->hosts_override && ob->hosts != NULL))
 
     host_build_hostlist(&hostlist, s, ob->hosts_randomize);
 
+    /* Check that the expansion yielded something useful. */
+    if (hostlist == NULL)
+      {
+      addrlist->message =
+        string_sprintf("%s transport has empty hosts setting", tblock->name);
+      addrlist->transport_return = PANIC;
+      return FALSE;   /* Only top address has status */
+      }
+
     /* If there was no expansion of hosts, save the host list for
     next time. */