mirror of
https://github.com/amnezia-vpn/OpenVPNAdapter.git
synced 2026-05-26 12:57:01 +03:00
81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
// OpenVPN -- An application to securely tunnel IP networks
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// over a single port, with support for SSL/TLS-based
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// session authentication and key exchange,
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// packet encryption, packet authentication, and
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// packet compression.
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//
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// Copyright (C) 2012-2020 OpenVPN Inc.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License Version 3
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// as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program in the COPYING file.
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// If not, see <http://www.gnu.org/licenses/>.
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#pragma once
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#include <windows.h>
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#include <string>
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#include <openvpn/common/exception.hpp>
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#include <openvpn/common/wstring.hpp>
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#include <openvpn/time/timestr.hpp>
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#include <openvpn/win/winerr.hpp>
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#include <openvpn/win/secattr.hpp>
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#include <openvpn/win/scoped_handle.hpp>
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namespace openvpn {
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namespace Win {
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namespace LogUtil {
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inline void log(const HANDLE file, const std::string& str)
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{
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DWORD n_written;
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const std::string line = date_time() + ' ' + str;
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::WriteFile(file, line.c_str(), line.length(), &n_written, NULL);
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}
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inline ScopedHANDLE create_file(const std::string& fn,
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const std::string& sddl_string,
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bool append)
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{
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SecurityAttributes sa(sddl_string, true, fn); // fn passed as title only
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const std::wstring wfn = wstring::from_utf8(fn);
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ScopedHANDLE file(::CreateFileW(
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wfn.c_str(),
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GENERIC_WRITE,
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FILE_SHARE_READ,
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&sa.sa,
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append ? OPEN_ALWAYS : CREATE_ALWAYS,
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FILE_ATTRIBUTE_NORMAL,
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NULL));
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if (!file.defined())
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{
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const Win::LastError err;
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OPENVPN_THROW_EXCEPTION("Win::LogFile: failed to open " << fn << " : " << err.message());
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}
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// append to logfile?
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if (append)
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{
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if (::SetFilePointer(file(), 0, NULL, FILE_END) == INVALID_SET_FILE_POINTER)
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{
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const Win::LastError err;
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OPENVPN_THROW_EXCEPTION("Win::LogFile: cannot append to " << fn << " : " << err.message());
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}
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}
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return file;
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}
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}
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}
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}
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