/* XMRig
 * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
 * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
 * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
 * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
 * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
 * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
 * Copyright 2018      SChernykh   <https://github.com/SChernykh>
 * Copyright 2016-2018 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   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, see <http://www.gnu.org/licenses/>.
 */


#include <string.h>
#include <uv.h>


#ifndef XMRIG_NO_TLS
#   include <openssl/ssl.h>
#   include <openssl/err.h>
#endif


#include "Platform.h"


char Platform::m_defaultConfigName[520] = { 0 };
xmrig::String Platform::m_userAgent;


const char *Platform::defaultConfigName()
{
    size_t size = 520;

    if (*m_defaultConfigName) {
        return m_defaultConfigName;
    }

    if (uv_exepath(m_defaultConfigName, &size) < 0) {
        return nullptr;
    }

    if (size < 500) {
#       ifdef WIN32
        char *p = strrchr(m_defaultConfigName, '\\');
#       else
        char *p = strrchr(m_defaultConfigName, '/');
#       endif

        if (p) {
            strcpy(p + 1, "config.json");
            return m_defaultConfigName;
        }
    }

    *m_defaultConfigName = '\0';
    return nullptr;
}


void Platform::init(const char *userAgent)
{
#   ifndef XMRIG_NO_TLS
    SSL_library_init();
    SSL_load_error_strings();
    ERR_load_BIO_strings();
    ERR_load_crypto_strings();
    SSL_load_error_strings();
    OpenSSL_add_all_digests();
#   endif

    if (userAgent) {
        m_userAgent = userAgent;
    }
    else {
        m_userAgent = createUserAgent();
    }
}