SSL_MODE_SEND_FALLBACK_SCSV
SSL_set_mode(con, SSL_MODE_SEND_FALLBACK_SCSV);
if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV)
if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV) {
if ((s->mode & SSL_MODE_SEND_FALLBACK_SCSV) == 0)