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/*
* tardy - a tar post-processor
* Copyright (C) 1998, 1999 Peter Miller;
* All rights reserved.
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
*
* MANIFEST: interface definition for common/tar/input/filter.cc
*/
#ifndef COMMON_TAR_INPUT_FILTER_H
#define COMMON_TAR_INPUT_FILTER_H
#include <tar/input.h>
/**
* The tar_input_filter class is used to represent the state of an
* input filter. It remembers the origin of the input, and implements
* transparent methods by default. Specific filters will want to
* override some or all of these defaults.
*/
class tar_input_filter:
public tar_input
{
public:
/**
* The destructor.
*/
virtual ~tar_input_filter();
// See base class for documentation.
virtual int read_data(void *, int);
// See base class for documentation.
virtual void read_data_padding();
// See base class for documentation.
virtual int read_header(tar_header &);
// See base class for documentation.
virtual void read_header_padding();
// See base class for documentation.
virtual const char *filename() const;
protected:
/**
* The constructor. Derived classes shall pass the deeper file
* reference.
*/
tar_input_filter(tar_input *);
private:
tar_input *fp;
/**
* Default constructor. Do not use.
*/
tar_input_filter();
/**
* Copy constructor. Do not use.
*/
tar_input_filter(const tar_input_filter &);
/**
* Assignment operator. Do not use.
*/
tar_input_filter &operator = (const tar_input_filter &);
};
#endif /* COMMON_TAR_INPUT_FILTER_H */
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