Expansions: new ${authresults {mch}} for an Authentication-Results header

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

diff --git a/src/src/smtp_in.c b/src/src/smtp_in.c
index 498cfab5e2d6513d6915d372c24140fec53178f3..1b7df5c30a5b2e5cf39b52fedd3b5b032277b8bb 100644 (file)
--- a/src/src/smtp_in.c
+++ b/src/src/smtp_in.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2017 */
+/* Copyright (c) University of Cambridge 1995 - 2018 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Functions for handling an incoming SMTP call. */
@@ -1838,7 +1838,7 @@ BOOL yield = helo_accept_junk;
 
 /* Discard any previous helo name */
 
-if (sender_helo_name != NULL)
+if (sender_helo_name)
   {
   store_free(sender_helo_name);
   sender_helo_name = NULL;
@@ -3522,7 +3522,7 @@ else
 
     HDEBUG(D_receive) debug_printf("getting IP address for %s\n",
       sender_helo_name);
-    rc = host_find_bydns(&h, NULL, HOST_FIND_BY_A,
+    rc = host_find_bydns(&h, NULL, HOST_FIND_BY_A | HOST_FIND_BY_AAAA,
                          NULL, NULL, NULL, &d, NULL, NULL);
     if (rc == HOST_FOUND || rc == HOST_FOUND_LOCAL)
       for (hh = &h; hh; hh = hh->next)
@@ -4040,9 +4040,9 @@ while (done <= 0)
       /* Force a reverse lookup if HELO quoted something in helo_lookup_domains
       because otherwise the log can be confusing. */
 
-      if (sender_host_name == NULL &&
-           (deliver_domain = sender_helo_name,  /* set $domain */
-            match_isinlist(sender_helo_name, CUSS &helo_lookup_domains, 0,
+      if (  !sender_host_name
+         && (deliver_domain = sender_helo_name,  /* set $domain */
+             match_isinlist(sender_helo_name, CUSS &helo_lookup_domains, 0,
               &domainlist_anchor, NULL, MCL_DOMAIN, TRUE, NULL)) == OK)
         (void)host_name_lookup();
 
@@ -4095,7 +4095,11 @@ while (done <= 0)
                &user_msg, &log_msg)) != OK)
         {
         done = smtp_handle_acl_fail(ACL_WHERE_HELO, rc, user_msg, log_msg);
-        sender_helo_name = NULL;
+       if (sender_helo_name)
+         {
+         store_free(sender_helo_name);
+         sender_helo_name = NULL;
+         }
         host_build_sender_fullhost();  /* Rebuild */
         break;
         }
@@ -5336,7 +5340,7 @@ while (done <= 0)
       cmd_list[CMD_LIST_EHLO].is_mail_cmd = TRUE;
       cmd_list[CMD_LIST_AUTH].is_mail_cmd = TRUE;
       cmd_list[CMD_LIST_TLS_AUTH].is_mail_cmd = TRUE;
-      if (sender_helo_name != NULL)
+      if (sender_helo_name)
         {
         store_free(sender_helo_name);
         sender_helo_name = NULL;
@@ -5497,7 +5501,7 @@ while (done <= 0)
 
     case ETRN_CMD:
     HAD(SCH_ETRN);
-    if (sender_address != NULL)
+    if (sender_address)
       {
       done = synprot_error(L_smtp_protocol_error, 503, NULL,
         US"ETRN is not permitted inside a transaction");
@@ -5523,7 +5527,7 @@ while (done <= 0)
     since that is strictly the only kind of ETRN that can be implemented
     according to the RFC. */
 
-    if (smtp_etrn_command != NULL)
+    if (smtp_etrn_command)
       {
       uschar *error;
       BOOL rc;
@@ -5739,6 +5743,23 @@ while (done <= 0)
 return done - 2;  /* Convert yield values */
 }
 
+
+
+gstring *
+authres_smtpauth(gstring * g)
+{
+if (!sender_host_authenticated)
+  return g;
+
+g = string_append(g, 4, US";\\n\\tauth=pass"
+       " (", sender_host_authenticated, US") smtp.auth=", authenticated_id);
+if (authenticated_sender)
+  g = string_append(g, 2, US" smtp.mailfrom=", authenticated_sender);
+return g;
+}
+
+
+
 /* vi: aw ai sw=2
 */
 /* End of smtp_in.c */