Code for verify=header_names_ascii

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

diff --git a/src/src/verify.c b/src/src/verify.c
index 911d67227ecfcce5f3ad79925836a5e5d823b12f..3d3bfdaf017968f0dd9c28c19b0b2037870d02b8 100644 (file)
--- a/src/src/verify.c
+++ b/src/src/verify.c
@@ -2,7 +2,7 @@
 *     Exim - an Internet mail transport agent    *
 *************************************************/
 
-/* Copyright (c) University of Cambridge 1995 - 2009 */
+/* Copyright (c) University of Cambridge 1995 - 2014 */
 /* See the file NOTICE for conditions of use and distribution. */
 
 /* Functions concerned with verifying things. The original code for callout
@@ -538,7 +538,7 @@ else
     #endif
       if (!(done= smtp_read_response(&inblock, responsebuffer, sizeof(responsebuffer), '2', callout)))
         goto RESPONSE_FAILED;
-    
+
     /* Not worth checking greeting line for ESMTP support */
     if (!(esmtp = verify_check_this_host(&(ob->hosts_avoid_esmtp), NULL,
       host->name, host->address, NULL) != OK))
@@ -698,10 +698,18 @@ else
 
     /* For now, transport_filter by cutthrough-delivery is not supported */
     /* Need proper integration with the proper transport mechanism. */
-    if (cutthrough_delivery && addr->transport->filter_command)
+    if (cutthrough_delivery)
       {
-      cutthrough_delivery= FALSE;
-      HDEBUG(D_acl|D_v) debug_printf("Cutthrough cancelled by presence of transport filter\n");
+      if (addr->transport->filter_command)
+        {
+        cutthrough_delivery= FALSE;
+        HDEBUG(D_acl|D_v) debug_printf("Cutthrough cancelled by presence of transport filter\n");
+        }
+      if (ob->dkim_domain)
+        {
+        cutthrough_delivery= FALSE;
+        HDEBUG(D_acl|D_v) debug_printf("Cutthrough cancelled by presence of DKIM signing\n");
+        }
       }
 
     SEND_FAILED:
@@ -2147,6 +2155,41 @@ return yield;
 }
 
 
+/*************************************************
+*      Check header names for 8-bit characters   *
+*************************************************/
+
+/* This function checks for invalid charcters in header names. See
+RFC 5322, 2.2. and RFC 6532, 3.
+
+Arguments:
+  msgptr     where to put an error message
+
+Returns:     OK
+             FAIL
+*/
+
+int
+verify_check_header_names_ascii(uschar **msgptr)
+{
+header_line *h;
+uschar *colon, *s;
+
+for (h = header_list; h != NULL; h = h->next)
+  {
+   colon = Ustrchr(h->text, ':');
+   for(s = h->text; s < colon; s++)
+     {
+        if ((*s < 33) || (*s > 126))
+        {
+                *msgptr = string_sprintf("Invalid character in header \"%.*s\" found",
+                                         colon - h->text, h->text);
+                return FAIL;
+        }
+     }
+  }
+return OK;
+}
 
 /*************************************************
 *          Check for blind recipients            *