//    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) 2012-2017 OpenVPN Technologies, Inc.
//
//    This program is free software: you can redistribute it and/or modify
//    it under the terms of the GNU 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 General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with this program in the COPYING file.
//    If not, see <http://www.gnu.org/licenses/>.

#ifndef OPENVPN_COMMON_PLATFORM_STRING_H
#define OPENVPN_COMMON_PLATFORM_STRING_H

#include <string>
#include <sstream>

#include <openvpn/common/version.hpp>
#include <openvpn/common/platform_name.hpp>

namespace openvpn {
  inline std::string platform_string(const std::string& title, const std::string& app_version)
  {
    std::ostringstream os;

    os << title << " ";
    if (!app_version.empty())
      os << app_version << '/';
    os << OPENVPN_VERSION;
    os << ' ' << platform_name();
#   if defined(__amd64__) || defined(__x86_64__) || defined(_M_X64) || defined(_M_AMD64)
      os << " x86_64";
#   elif defined(__i386__) || defined(_M_IX86)
      os << " i386";
#   elif defined(__aarch64__) || defined(__arm64__)
      os << " arm64";
#   elif defined(__arm__) || defined(_M_ARM)
#     if defined(__ARM_ARCH_7S__) || defined(_ARM_ARCH_7S)
        os << " armv7s";
#     elif defined(__ARM_ARCH_7A__)
        os << " armv7a";
#     elif defined(__ARM_V7__) || defined(_ARM_ARCH_7)
        os << " armv7";
#     else
        os << " arm";
#     endif
#     if defined(__thumb2__)
	os << " thumb2";
#     elif defined(__thumb__) || defined(_M_ARMT)
        os << " thumb";
#     endif
#   endif

    os << ' ' << (sizeof(void *) * 8) << "-bit";
    return os.str();
  }

  inline std::string platform_string()
  {
    return platform_string("OpenVPN core", "");
  }
} // namespace openvpn

#endif // OPENVPN_COMMON_PLATFORM_STRING_H
