X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/337e3505b0e6cd4309db6bf6062b33fa56e06cf8..4263f395efd136dece52d765dfcff3c96f17506e:/src/src/dkim.c

diff --git a/src/src/dkim.c b/src/src/dkim.c
index 2318cc394..05b5fec56 100644
--- a/src/src/dkim.c
+++ b/src/src/dkim.c
@@ -1,5 +1,3 @@
-/* $Cambridge: exim/src/src/dkim.c,v 1.15 2010/06/12 13:54:38 jetmore Exp $ */
-
 /*************************************************
 *     Exim - an Internet mail transport agent    *
 *************************************************/
@@ -44,6 +42,9 @@ int dkim_exim_query_dns_txt(char *name, char *answer) {
                "%.*s", (int)len, (char *)((rr->data)+rr_offset));
       rr_offset+=len;
       answer_offset+=len;
+      if (answer_offset >= PDKIM_DNS_TXT_MAX_RECLEN) {
+        return PDKIM_FAIL;
+      }
     }
   }
   else return PDKIM_FAIL;