105 lines
3.7 KiB
C++
105 lines
3.7 KiB
C++
#ifndef ZIPFILE_H
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#define ZIPFILE_H
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#include "zipios-config.h"
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#include <vector>
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#include "meta-iostreams.h"
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#include "fcoll.h"
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#include "ziphead.h"
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#include "virtualseeker.h"
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namespace zipios {
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using std::ifstream ;
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/** \anchor zipfile_anchor
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ZipFile is a FileCollection, where the files are stored
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in a .zip file. */
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class BaseExport ZipFile : public FileCollection {
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public:
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/** \anchor zipfile_openembeddedzipfile
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Opens a Zip archive embedded in another file, by writing the zip
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archive to the end of the file followed by the start offset of
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the zip file. The offset must be written in zip-file byte-order
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(little endian). The program appendzip, which is part of the
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Zipios++ distribution can be used to append a Zip archive to a
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file, e.g. a binary program.
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@throw FColException Thrown if the specified file name is not a valid zip
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archive.
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@throw IOException Thrown if an I/O problem is encountered, while the directory
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of the specified zip archive is being read. */
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static ZipFile openEmbeddedZipFile( const string &name ) ;
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/** Default constructor.
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*/
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ZipFile() {}
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/* Default Copy constructor and copy assignment operator are sufficient. */
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/** Constructor. Opens the zip file name. If the zip "file" is
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embedded in a file that contains other data, e.g. a binary
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program, the offset of the zip file start and end must be
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specified.
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@param name The filename of the zip file to open.
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@param s_off Offset relative to the start of the file, that
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indicates the beginning of the zip file.
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@param e_off Offset relative to the end of the file, that
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indicates the end of the zip file. The offset is a positive number,
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even though the offset is towards the beginning of the file.
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@throw FColException Thrown if the specified file name is not a valid zip
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archive.
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@throw IOException Thrown if an I/O problem is encountered, while the directory
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of the specified zip archive is being read. */
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explicit ZipFile( const string &name, int s_off = 0, int e_off = 0
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/* , ios::open_mode mode = ios::in | ios::binary */ ) ;
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virtual FileCollection *clone() const ;
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/** Destructor. */
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virtual ~ZipFile() ;
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virtual void close() ;
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virtual istream *getInputStream( const ConstEntryPointer &entry ) ;
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virtual istream *getInputStream( const string &entry_name,
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MatchPath matchpath = MATCH ) ;
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private:
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VirtualSeeker _vs ;
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EndOfCentralDirectory _eocd ;
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bool init( istream &_zipfile ) ;
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bool readCentralDirectory( istream &_zipfile ) ;
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bool readEndOfCentralDirectory( istream &_zipfile ) ;
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bool confirmLocalHeaders( istream &_zipfile ) ;
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void setError( string error_str ) ;
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};
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}
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#endif
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/** \file
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Header file that defines ZipFile.
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*/
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/*
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Zipios++ - a small C++ library that provides easy access to .zip files.
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Copyright (C) 2000 Thomas Søndergaard
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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