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

diff --git a/src/src/dns.c b/src/src/dns.c
index a2f4309937b92dfd922034c7774899b04100f0f8..f1619f4a464122f46445c98aaf058891f0061dbb 100644 (file)
--- a/src/src/dns.c
+++ b/src/src/dns.c
@@ -576,6 +576,23 @@ if (previous != NULL)
   return previous->data.val;
   }
 
+#ifdef EXPERIMENTAL_INTERNATIONAL
+/* Convert all names to a-label form before doing lookup */
+  {
+  uschar * alabel;
+  uschar * errstr = NULL;
+  if ((alabel = string_domain_utf8_to_alabel(name, &errstr)), errstr)
+    {
+    DEBUG(D_dns)
+      debug_printf("DNS name '%s' utf8 conversion to alabel failed: %s", name,
+        errstr);
+    host_find_failed_syntax = TRUE;
+    return DNS_NOMATCH;
+    }
+  name = alabel;
+  }
+#endif
+
 /* If configured, check the hygene of the name passed to lookup. Otherwise,
 although DNS lookups may give REFUSED at the lower level, some resolvers
 turn this into TRY_AGAIN, which is silly. Give a NOMATCH return, since such