//    OpenVPN -- An application to securely tunnel IP networks
//               over a single port, with support for SSL/TLS-based
//               session authentication and key exchange,
//               packet encryption, packet authentication, and
//               packet compression.
//
//    Copyright (C) 2012-2020 OpenVPN Inc.
//
//    This program is free software: you can redistribute it and/or modify
//    it under the terms of the GNU Affero General Public License Version 3
//    as published by the Free Software Foundation.
//
//    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 Affero General Public License for more details.
//
//    You should have received a copy of the GNU Affero General Public License
//    along with this program in the COPYING file.
//    If not, see <http://www.gnu.org/licenses/>.

#pragma once

// seed OpenSSL's random number generator with /dev/urandom

#include <openssl/rand.h>

#include <openvpn/random/devurand.hpp>

namespace openvpn {
  inline void openssl_reseed_rng()
  {
    unsigned char entropy[64];

    RandomAPI::Ptr rng(new DevURand);
    rng->rand_bytes(entropy, sizeof(entropy));

    RAND_seed(entropy, sizeof(entropy));
  }
}