mirror of
https://github.com/OpenVPN/openvpn3.git
synced 2024-09-20 04:02:15 +02:00
95 lines
3.3 KiB
C++
95 lines
3.3 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) 2012-2022 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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#ifndef OPENVPN_WIN_UNICODE_H
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#define OPENVPN_WIN_UNICODE_H
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#include <windows.h>
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#include <string>
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#include <memory>
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#include <openvpn/common/size.hpp>
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#include <openvpn/common/exception.hpp>
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namespace openvpn::Win {
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typedef std::unique_ptr<wchar_t[]> UTF16;
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typedef std::unique_ptr<char[]> UTF8;
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OPENVPN_SIMPLE_EXCEPTION(win_utf16);
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inline wchar_t *utf16(const std::string &str, int cp = CP_UTF8)
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{
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// first get output length (return value includes space for trailing nul)
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const int len = ::MultiByteToWideChar(cp,
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0,
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str.c_str(),
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-1,
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nullptr,
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0);
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if (len <= 0)
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throw win_utf16();
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UTF16 ret(new wchar_t[len]);
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const int len2 = ::MultiByteToWideChar(cp,
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0,
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str.c_str(),
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-1,
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ret.get(),
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len);
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if (len != len2)
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throw win_utf16();
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return ret.release();
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}
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inline size_t utf16_strlen(const wchar_t *str)
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{
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return ::wcslen(str);
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}
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inline char *utf8(wchar_t *str)
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{
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// first get output length (return value includes space for trailing nul)
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const int len = ::WideCharToMultiByte(CP_UTF8,
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0,
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str,
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-1,
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NULL,
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0,
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NULL,
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NULL);
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if (len <= 0)
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throw win_utf16();
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UTF8 ret(new char[len]);
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const int len2 = ::WideCharToMultiByte(CP_UTF8,
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0,
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str,
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-1,
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ret.get(),
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len,
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NULL,
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NULL);
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if (len != len2)
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throw win_utf16();
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return ret.release();
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}
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} // namespace openvpn::Win
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#endif
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