endian_platform.hpp

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//    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- OpenVPN Inc.
//
//    SPDX-License-Identifier: MPL-2.0 OR AGPL-3.0-only WITH openvpn3-openssl-exception
//
 
#pragma once
 
#include <openvpn/common/size.hpp>
 
// test for machine endiannes
#if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && defined(__ORDER_LITTLE_ENDIAN__)
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define OPENVPN_BIG_ENDIAN
#elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#define OPENVPN_LITTLE_ENDIAN
#endif
#elif defined(_WIN32)
#define OPENVPN_LITTLE_ENDIAN // assume that Windows is always little-endian
#endif