RRSIG.Sign: remove duplicate before signing records as per RFC

2015-03-17 14:34:16 +00:00 · 2015-03-17 14:34:16 +00:00 · 315e7334de
parent fd694e564b
commit 315e7334de
1 changed files with 4 additions and 1 deletions
--- a/dnssec.go
+++ b/dnssec.go
@ -575,7 +575,10 @@ func rawSignatureData(rrset []RR, s *RRSIG) (buf []byte, err error) {
 		wires[i] = wire
 	}
 	sort.Sort(wires)
-	for _, wire := range wires {
+	for i, wire := range wires {
+		if i > 0 && bytes.Equal(wire, wires[i-1]) {
+			continue
+		}
 		buf = append(buf, wire...)
 	}
 	return buf, nil