+
+ err = 0;
+#if HAVE_GNUTLS_PRIORITY_SET_DIRECT
+ switch (opt.secure_protocol)
+ {
+ case secure_protocol_auto:
+ break;
+ case secure_protocol_sslv2:
+ case secure_protocol_sslv3:
+ err = gnutls_priority_set_direct (session, "NORMAL:-VERS-TLS-ALL", NULL);
+ break;
+ case secure_protocol_tlsv1:
+ err = gnutls_priority_set_direct (session, "NORMAL:-VERS-SSL3.0", NULL);
+ break;
+ default:
+ abort ();
+ }
+#else
+ int allowed_protocols[4] = {0, 0, 0, 0};
+ switch (opt.secure_protocol)
+ {
+ case secure_protocol_auto:
+ break;
+ case secure_protocol_sslv2:
+ case secure_protocol_sslv3:
+ allowed_protocols[0] = GNUTLS_SSL3;
+ err = gnutls_protocol_set_priority (session, allowed_protocols);
+ break;
+
+ case secure_protocol_tlsv1:
+ allowed_protocols[0] = GNUTLS_TLS1_0;
+ allowed_protocols[1] = GNUTLS_TLS1_1;
+ allowed_protocols[2] = GNUTLS_TLS1_2;
+ err = gnutls_protocol_set_priority (session, allowed_protocols);
+ break;
+
+ default:
+ abort ();
+ }
+#endif
+
+ if (err < 0)
+ {
+ logprintf (LOG_NOTQUIET, "GnuTLS: %s\n", gnutls_strerror (err));
+ gnutls_deinit (session);
+ return false;
+ }
+