/**
 * Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
 *
 * This file is part of libzmq, the ZeroMQ core engine in C++.
 *
 * libzmq is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License (LGPL) as published
 * by the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * As a special exception, the Contributors give you permission to link
 * this library with independent modules to produce an executable,
 * regardless of the license terms of these independent modules, and to
 * copy and distribute the resulting executable under terms of your choice,
 * provided that you also meet, for each linked independent module, the
 * terms and conditions of the license of that module. An independent
 * module is a module which is not derived from or based on this library.
 * If you modify this library, you must extend this exception to your
 * version of the library.
 *
 * libzmq 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 Lesser General Public
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *********************************************************************************/

#include <iostream>
#include <stdlib.h>
#include <assert.h>
#include <zmq.h>

#if ZMQ_VERSION_MAJOR < 4 || (ZMQ_VERSION_MAJOR == 4 && ZMQ_VERSION_MINOR <= 1)
  #include <zmq_utils.h>
#endif

int main (int argc, char *argv[])
{
	int ret;
	char public_key[41];
	char secret_key[41];

	ret = zmq_curve_keypair(public_key, secret_key);
	if (ret) {
		if (zmq_errno() == ENOTSUP)
			std::cout << "To use " << argv[0] << ", please install libsodium and then rebuild libzmq." << std::endl;

		exit(EXIT_FAILURE);
	}

	std::cout << "# Copy these lines to your 'zeromq' node-configuration" << std::endl;
	std::cout << "curve = {" << std::endl;
	std::cout << "\tpublic_key = \"" << public_key << "\";" << std::endl;
	std::cout << "\tsecret_key = \"" << secret_key << "\";" << std::endl;
	std::cout << "}" << std::endl;

	return 0;
}