1 files changed, 3 insertions(+), 0 deletions(-)

M common/common.go

@@ 94,6 94,9 @@ func oneTarget(resolver *dane.Resolver, service string, selector string, target 
 		}
 
 		cs := conn.ConnectionState()
+		if len(cs.PeerCertificates) < 1 {
+			return TargetResult{}, fmt.Errorf("No certificate given for %s", target)
+		}
 		sha256, _ := dns.CertificateToDANE(1, 1, cs.PeerCertificates[0])
 
 		daneok = daneok && config.Okdane