Add Qt libs and headers

paho-mqtt3as-proxy/Qt/include/QtCore/qmessageauthenticationcode.h

@@ -0,0 +1,43 @@
+// Copyright (C) 2013 Ruslan Nigmatullin <euroelessar@yandex.ru>
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#ifndef QMESSAGEAUTHENTICATIONCODE_H
+#define QMESSAGEAUTHENTICATIONCODE_H
+
+#include <QtCore/qcryptographichash.h>
+
+QT_BEGIN_NAMESPACE
+
+
+class QMessageAuthenticationCodePrivate;
+class QIODevice;
+
+// implemented in qcryptographichash.cpp
+class Q_CORE_EXPORT QMessageAuthenticationCode
+{
+public:
+    explicit QMessageAuthenticationCode(QCryptographicHash::Algorithm method,
+                                        const QByteArray &key = QByteArray());
+    ~QMessageAuthenticationCode();
+
+    void reset();
+
+    void setKey(const QByteArray &key);
+
+    void addData(const char *data, qsizetype length);
+    void addData(const QByteArray &data);
+    bool addData(QIODevice *device);
+
+    QByteArray result() const;
+
+    static QByteArray hash(const QByteArray &message, const QByteArray &key,
+                           QCryptographicHash::Algorithm method);
+
+private:
+    Q_DISABLE_COPY(QMessageAuthenticationCode)
+    QMessageAuthenticationCodePrivate *d;
+};
+
+QT_END_NAMESPACE
+
+#endif