146 lines
3.8 KiB
C++
146 lines
3.8 KiB
C++
// Copyright (C) 2009-2011 Gaz Davidson
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// This file is part of the "Irrlicht Engine".
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// For conditions of distribution and use, see copyright notice in irrlicht.h
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#ifndef __C_TAR_READER_H_INCLUDED__
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#define __C_TAR_READER_H_INCLUDED__
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#include "IrrCompileConfig.h"
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#ifdef __IRR_COMPILE_WITH_TAR_ARCHIVE_LOADER_
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#include "IReferenceCounted.h"
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#include "IReadFile.h"
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#include "irrArray.h"
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#include "irrString.h"
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#include "IFileSystem.h"
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#include "CFileList.h"
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namespace irr
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{
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namespace io
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{
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#if defined(_MSC_VER) || defined(__BORLANDC__) || defined (__BCPLUSPLUS__)
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# pragma pack( push, packing )
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# pragma pack( 1 )
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# define PACK_STRUCT
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#elif defined( __GNUC__ )
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# define PACK_STRUCT __attribute__((packed))
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#else
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# error compiler not supported
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#endif
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enum E_TAR_LINK_INDICATOR
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{
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ETLI_REGULAR_FILE_OLD = 0 ,
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ETLI_REGULAR_FILE = '0',
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ETLI_LINK_TO_ARCHIVED_FILE = '1', // Hard link
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ETLI_SYMBOLIC_LINK = '2',
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ETLI_CHAR_SPECIAL_DEVICE = '3',
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ETLI_BLOCK_SPECIAL_DEVICE = '4',
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ETLI_DIRECTORY = '5',
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ETLI_FIFO_SPECIAL_FILE = '6',
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ETLI_CONTIGUOUS_FILE = '7'
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};
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struct STarHeader
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{
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c8 FileName[100];
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c8 FileMode[8];
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c8 UserID[8];
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c8 GroupID[8];
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c8 Size[12];
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c8 ModifiedTime[12];
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c8 Checksum[8];
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c8 Link;
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c8 LinkName[100];
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c8 Magic[6];
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c8 USTARVersion[2];
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c8 UserName[32];
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c8 GroupName[32];
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c8 DeviceMajor[8];
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c8 DeviceMinor[8];
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c8 FileNamePrefix[155];
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} PACK_STRUCT;
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// Default alignment
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#if defined(_MSC_VER) || defined(__BORLANDC__) || defined (__BCPLUSPLUS__)
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# pragma pack( pop, packing )
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#endif
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#undef PACK_STRUCT
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//! Archiveloader capable of loading ZIP Archives
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class CArchiveLoaderTAR : public IArchiveLoader
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{
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public:
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//! Constructor
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CArchiveLoaderTAR(io::IFileSystem* fs);
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//! returns true if the file maybe is able to be loaded by this class
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//! based on the file extension (e.g. ".tar")
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virtual bool isALoadableFileFormat(const io::path& filename) const;
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//! Check if the file might be loaded by this class
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/** Check might look into the file.
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\param file File handle to check.
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\return True if file seems to be loadable. */
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virtual bool isALoadableFileFormat(io::IReadFile* file) const;
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//! Check to see if the loader can create archives of this type.
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/** Check based on the archive type.
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\param fileType The archive type to check.
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\return True if the archile loader supports this type, false if not */
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virtual bool isALoadableFileFormat(E_FILE_ARCHIVE_TYPE fileType) const;
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//! Creates an archive from the filename
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/** \param file File handle to check.
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\return Pointer to newly created archive, or 0 upon error. */
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virtual IFileArchive* createArchive(const io::path& filename, bool ignoreCase, bool ignorePaths) const;
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//! creates/loads an archive from the file.
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//! \return Pointer to the created archive. Returns 0 if loading failed.
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virtual io::IFileArchive* createArchive(io::IReadFile* file, bool ignoreCase, bool ignorePaths) const;
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private:
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io::IFileSystem* FileSystem;
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};
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class CTarReader : public virtual IFileArchive, virtual CFileList
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{
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public:
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CTarReader(IReadFile* file, bool ignoreCase, bool ignorePaths);
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virtual ~CTarReader();
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//! opens a file by file name
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virtual IReadFile* createAndOpenFile(const io::path& filename);
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//! opens a file by index
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virtual IReadFile* createAndOpenFile(u32 index);
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//! returns the list of files
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virtual const IFileList* getFileList() const;
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//! get the class Type
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virtual E_FILE_ARCHIVE_TYPE getType() const { return EFAT_TAR; }
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private:
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u32 populateFileList();
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IReadFile* File;
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};
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} // end namespace io
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} // end namespace irr
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#endif // __IRR_COMPILE_WITH_TAR_ARCHIVE_LOADER_
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#endif // __C_TAR_READER_H_INCLUDED__
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