/usr/include/k3bchecksumpipe.h is in libk3b-dev 2.0.2-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74  | /*
 *
 * Copyright (C) 2006-2009 Sebastian Trueg <trueg@k3b.org>
 *
 * This file is part of the K3b project.
 * Copyright (C) 1998-2009 Sebastian Trueg <trueg@k3b.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * See the file "COPYING" for the exact licensing terms.
 */
#ifndef _K3B_CHECKSUM_PIPE_H_
#define _K3B_CHECKSUM_PIPE_H_
#include "k3bactivepipe.h"
#include "k3b_export.h"
namespace K3b {
    /**
     * The checksum pipe calculates the checksum of the data
     * passed through it.
     */
    class LIBK3B_EXPORT ChecksumPipe : public ActivePipe
    {
        Q_OBJECT
    public:
        ChecksumPipe();
        ~ChecksumPipe();
        enum Type {
            MD5
        };
        /**
         * \reimplemented
         * Defaults to MD5 checksum
         */
        bool open( bool closeWhenDone = false );
        /**
         * Opens the pipe and thus starts the
         * checksum calculation
         *
         * \param closeWhenDone If true the pipes will be closed
         *        once all data has been read.
         */
        bool open( Type type, bool closeWhenDone = false );
        /**
         * Get the calculated checksum
         */
        QByteArray checksum() const;
    protected:
        qint64 writeData( const char* data, qint64 max );
    private:
        /**
         * Hidden open method. Use open(bool).
         */
        bool open( OpenMode mode );
        class Private;
        Private* d;
    };
}
#endif
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