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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 <fcntl.h> // Definition of AT_* constants */
#include <sys/stat.h>
#include <cstdint> // for std::uint64_t
#include <cerrno>
#include <string>
#include <openvpn/common/platform.hpp>
namespace openvpn {
#if defined(OPENVPN_PLATFORM_LINUX)
inline int update_file_mod_time_nanoseconds(const std::string &filename,
const std::uint64_t nanoseconds_since_epooch)
{
struct timespec times[2];
times[0].tv_sec = nanoseconds_since_epooch / std::uint64_t(1000000000);
times[0].tv_nsec = nanoseconds_since_epooch % std::uint64_t(1000000000);
times[1] = times[0];
if (::utimensat(AT_FDCWD, filename.c_str(), times, 0) == -1)
return errno;
return 0;
}
inline int update_file_mod_time_nanoseconds(const int fd,
const std::uint64_t nanoseconds_since_epooch)
{
struct timespec times[2];
times[0].tv_sec = nanoseconds_since_epooch / std::uint64_t(1000000000);
times[0].tv_nsec = nanoseconds_since_epooch % std::uint64_t(1000000000);
times[1] = times[0];
if (::futimens(fd, times) == -1)
return errno;
return 0;
}
#else
inline int update_file_mod_time_nanoseconds(const std::string &filename,
const std::uint64_t nanoseconds_since_epooch)
{
return 0;
}
inline int update_file_mod_time_nanoseconds(const int fd,
const std::uint64_t nanoseconds_since_epooch)
{
return 0;
}
#endif
} // namespace openvpn
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