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54 lines
1.6 KiB
C++
54 lines
1.6 KiB
C++
// Copyright 2005-2018 The Mumble Developers. All rights reserved.
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// Use of this source code is governed by a BSD-style license
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// that can be found in the LICENSE file at the root of the
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// Mumble source tree or at <https://www.mumble.info/LICENSE>.
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#include "EnvUtils.h"
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#include <QByteArray>
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QString EnvUtils::getenv(QString name) {
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#ifdef Q_OS_WIN
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QByteArray buf;
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size_t requiredSize = 0;
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static_assert(sizeof(wchar_t) == sizeof(ushort), "expected 2-byte wchar_t");
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const wchar_t *wname = reinterpret_cast<const wchar_t *>(name.utf16());
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// Query the required buffer size (in elements).
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if (_wgetenv_s(&requiredSize, 0, 0, wname) != 0) {
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return QString();
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}
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if (requiredSize == 0) {
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return QString();
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}
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// Resize buf to fit the value and put it there.
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buf.resize(static_cast<int>(requiredSize * sizeof(wchar_t)));
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if (_wgetenv_s(&requiredSize, reinterpret_cast<wchar_t *>(buf.data()), requiredSize, wname) != 0) {
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return QString();
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}
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// Convert the value to QString and return it.
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const wchar_t *wbuf = reinterpret_cast<const wchar_t *>(buf.constData());
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return QString::fromWCharArray(wbuf);
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#else
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QByteArray name8bit = name.toLocal8Bit();
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char *val = ::getenv(name8bit.constData());
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if (val == NULL) {
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return QString();
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}
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return QString::fromLocal8Bit(val);
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#endif
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}
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bool EnvUtils::setenv(QString name, QString value) {
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#ifdef Q_OS_WIN
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return _wputenv_s(reinterpret_cast<const wchar_t *>(name.utf16()), reinterpret_cast<const wchar_t *>(value.utf16())) == 0;
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#else
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const int OVERWRITE = 1;
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return ::setenv(name.toLocal8Bit().constData(), value.toLocal8Bit().constData(), OVERWRITE) == 0;
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#endif
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}
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