tls-peer: Don't log anything if we are not sending supported groups

diff --git a/src/libtls/tls_peer.c b/src/libtls/tls_peer.c
index 987bd515243ccf42c9b7ef7a59ba24739ea1d6d9..9d797f34b6d9bfc0858bb09b4466a21a483d25f1 100644 (file)
--- a/src/libtls/tls_peer.c
+++ b/src/libtls/tls_peer.c
@@ -1326,8 +1326,6 @@ static status_t send_client_hello(private_tls_peer_t *this,
                names->destroy(names);
        }
 
-       DBG2(DBG_TLS, "sending extension: %N",
-                tls_extension_names, TLS_EXT_SUPPORTED_GROUPS);
        enumerator = this->crypto->create_ec_enumerator(this->crypto);
        while (enumerator->enumerate(enumerator, &group, &curve))
        {
@@ -1351,8 +1349,12 @@ static status_t send_client_hello(private_tls_peer_t *this,
                curves->write_uint16(curves, curve);
        }
        enumerator->destroy(enumerator);
+
        if (curves)
        {
+               DBG2(DBG_TLS, "sending extension: %N",
+                        tls_extension_names, TLS_EXT_SUPPORTED_GROUPS);
+
                curves->wrap16(curves);
                extensions->write_data16(extensions, curves->get_buf(curves));
                curves->destroy(curves);