fix for when rrsig is 2wire'd before having an actual signature

diff --git a/host2wire.c b/host2wire.c
index 31f09cae8e5b83f134914f654f7204386e79d5a4..86959dcade1364bf92d0c5b4d99e7751e0e26544 100644 (file)
--- a/host2wire.c
+++ b/host2wire.c
@@ -111,7 +111,9 @@ ldns_rrsig2buffer_wire(ldns_buffer *buffer, ldns_rr *rr)
        /* Convert all the rdfs, except the actual signature data
         * rdf number 8  - the last, hence: -1 */
        for (i = 0; i < ldns_rr_rd_count(rr) - 1; i++) {
-               (void) ldns_rdf2buffer_wire(buffer, ldns_rr_rdf(rr, i));
+               if (ldns_rr_rdf(rr, i)) {
+                       (void) ldns_rdf2buffer_wire(buffer, ldns_rr_rdf(rr, i));
+               }
        }
 
        return ldns_buffer_status(buffer);