ZipFile.h
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上传日期:2013-08-04
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- /*
- * Copyright (c) 2001,2002,2003 Mike Matsnev. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice immediately at the beginning of the file, without modification,
- * this list of conditions, and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Absolutely no warranty of function or purpose is made by the author
- * Mike Matsnev.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * $Id: ZipFile.h,v 1.9.2.3 2004/07/07 12:04:47 mike Exp $
- *
- */
- #if !defined(AFX_ZIPFILE_H__CDE86113_3C6F_4FE5_BCEF_F512CA03E3D3__INCLUDED_)
- #define AFX_ZIPFILE_H__CDE86113_3C6F_4FE5_BCEF_F512CA03E3D3__INCLUDED_
- #if _MSC_VER > 1000
- #pragma once
- #endif // _MSC_VER > 1000
- #include "zlib.h"
- #include "RFile.h"
- class ZipFile : public RFile
- {
- struct ZFile {
- ZFile *parent;
- int off; // offset into zip file, -1 for directories
- union {
- struct { // for plain files
- int csize; // compressed size, -1 if file is not compressed
- int size; // uncompressed size, -1 if compression type unsupported
- };
- CMapStringToPtr *children; // for directories
- };
- ~ZFile();
- bool isdir() { return off<0; }
- bool iscmp() { return csize>=0; }
- void fixup_encoding(int enc);
- };
- public:
- ZipFile(const CString& fn);
- virtual ~ZipFile();
- // file operations
- virtual DWORD size();
- virtual DWORD read(void *buf);
- virtual void seek(DWORD pos);
- // compression
- virtual CString CompressionInfo();
- // zip file specific methods
- bool SetDir(const CString& dir); // set current zip dir
- bool GetNextFileInfo(CString& fname,bool& isdir,__int64& size);
- void Reset(); // reset iterator
- bool ReadZip(); // load zip file directory
- bool Open(const CString& filename); // open file in current dir
- bool IsSingleFile(CString *s);
- protected:
- ZFile m_rootdir;
- ZFile *m_curdir;
- POSITION m_curpos;
- ZFile *m_curfile;
- z_stream *m_zs;
- Buffer<Bytef> m_in;
- DWORD m_ptr;
- void rewind();
- };
- #endif // !defined(AFX_ZIPFILE_H__CDE86113_3C6F_4FE5_BCEF_F512CA03E3D3__INCLUDED_)