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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/path.hpp>
#include <openvpn/common/hexstr.hpp>
#include <openvpn/random/randapi.hpp>
namespace openvpn {
// Generate a temporary filename that is a variant
// of an existing filename.
inline std::string tmp_filename(const std::string &fn,
const std::string &tmpdir,
StrongRandomAPI &rng)
{
unsigned char data[16];
rng.rand_fill(data);
return path::join(tmpdir, '.' + path::basename(fn).substr(0, 64) + '.' + render_hex(data, sizeof(data)));
}
} // namespace openvpn
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