/*

 * This file is part of PowerDNS or dnsdist.

 * Copyright -- PowerDNS.COM B.V. and its contributors

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of version 2 of the GNU General Public License as

 * published by the Free Software Foundation.

 *

 * In addition, for the avoidance of any doubt, permission is granted to

 * link this program with OpenSSL and to (re)distribute the binaries

 * produced as the result of such linking.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 */

#include "uuid-utils.hh"

// see https://github.com/boostorg/random/issues/49

#if BOOST_VERSION == 106900

#ifndef BOOST_PENDING_INTEGER_LOG2_HPP

#define BOOST_PENDING_INTEGER_LOG2_HPP

#include <boost/integer/integer_log2.hpp>

#endif /* BOOST_PENDING_INTEGER_LOG2_HPP */

#endif /* BOOST_VERSION */

#include <boost/random/mersenne_twister.hpp>

#include <boost/uuid/uuid_generators.hpp>

// The default of:

// boost::uuids::random_generator

// is safe for crypto operations since 1.67.0, but much slower.

thread_local boost::uuids::basic_random_generator<boost::random::mt19937> t_uuidGenerator;

boost::uuids::uuid getUniqueID()

{

  // not safe for crypto, but it could be with Boost >= 1.67.0 by using boost::uuids::random_generator,

  // which is slower

  return t_uuidGenerator();

}

boost::uuids::uuid getUniqueID(const std::string& str)

{

  boost::uuids::string_generator gen;

  return gen(str);

}