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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
//
#ifndef OPENVPN_BUFFER_BUFHEX_H
#define OPENVPN_BUFFER_BUFHEX_H
#include <openvpn/common/hexstr.hpp>
#include <openvpn/common/exception.hpp>
#include <openvpn/buffer/buffer.hpp>
namespace openvpn::BufHex {
OPENVPN_EXCEPTION(buf_hex);
template <typename T>
inline std::string render(const T obj)
{
const ConstBuffer buf((const unsigned char *)&obj, sizeof(obj), true);
return render_hex_generic(buf);
}
template <typename T>
inline T parse(const std::string &hex, const std::string &title)
{
T obj;
Buffer buf((unsigned char *)&obj, sizeof(obj), false);
try
{
parse_hex(buf, hex);
}
catch (const BufferException &e)
{
OPENVPN_THROW(buf_hex, title << ": buffer issue: " << e.what());
}
if (buf.size() != sizeof(obj))
OPENVPN_THROW(buf_hex, title << ": unexpected size");
return obj;
}
} // namespace openvpn::BufHex
#endif
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