{
if (client_tls == false)
#ifndef OPENSSL_NO_SSL3
SSL_CTX_set_ssl_version(ssl_ctx, SSLv3_method());
#else
SSL_CTX_set_ssl_version(ssl_ctx, SSLv23_method());
SSL_CTX_set_options(ssl_ctx, SSL_OP_NO_SSLv2 | SSL_OP_NO_TLSv1
#ifdef SSL_OP_NO_TLSv1_2
| SSL_OP_NO_TLSv1_1 | SSL_OP_NO_TLSv1_2
#endif
);
}
else