www.pudn.com > Zlib_com.zip > FileHeader.h

// FileHeader.h: interface for the CFileHeader class. 
// 
//////////////////////////////////////////////////////////////////////////////// 
//  Copyright (C) 2000 Tadeusz Dracz. 
//  For conditions of distribution and use, see copyright notice in ZipArchive.h 
//////////////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_FILEHEADER_H__0081FC65_C9C9_4D48_AF72_DBF37DF5E0CF__INCLUDED_) 
#define AFX_FILEHEADER_H__0081FC65_C9C9_4D48_AF72_DBF37DF5E0CF__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#include "ZipException.h" 
#include "ZipStorage.h" 
#include "AutoBuffer.h" 
 
class CFileHeader   
{ 
public:	 
//         central file header signature   4 bytes  (0x02014b50) 
	char m_szSignature[4]; 
//         version made by                 2 bytes 
	WORD m_uVersionMadeBy; 
//         version needed to extract       2 bytes 
	WORD m_uVersionNeeded; 
//         general purpose bit flag        2 bytes 
	WORD m_uFlag; 
//         compression method              2 bytes 
	WORD m_uMethod; 
//         last mod file time              2 bytes 
	WORD m_uModTime; 
//         last mod file date              2 bytes 
	WORD m_uModDate; 
//         crc-32                          4 bytes 
	DWORD m_uCrc32; 
//         compressed size                 4 bytes 
	DWORD m_uComprSize; 
//         uncompressed size               4 bytes 
	DWORD m_uUncomprSize; 
//         filename length                 2 bytes 
	WORD m_uFileNameSize; 
//         extra field length              2 bytes 
	WORD m_uExtraFieldSize; 
//         file comment length             2 bytes 
	WORD m_uCommentSize; 
//         disk number start               2 bytes 
	WORD m_uDiskStart; 
//         internal file attributes        2 bytes 
	WORD m_uInternalAttr; 
//         external file attributes        4 bytes 
	DWORD m_uExternalAttr; 
//         relative offset of local header 4 bytes 
	DWORD m_uOffset; 
//         filename (variable size) 
	CString m_szFileName; 
//         extra field (variable size) 
	CAutoBuffer m_pExtraField; 
//         file comment (variable size) 
	CString m_szComment; 
 
	CFileHeader(); 
	virtual ~CFileHeader(); 
	CTime GetTime(); 
	void SetTime(const CTime& time); 
	static char m_gszSignature[]; 
	static char m_gszLocalSignature[]; 
	DWORD GetSize(); 
protected: 
	void ValidateComment(); 
	void GetCrcAndSizes(char * pBuffer); 
	bool PrepareData(int iLevel, bool bIsSpanMode); 
	void WriteLocal(CZipStorage& storage); 
	bool CheckCrcAndSizes(char* pBuf); 
	friend class CCentralDir; 
	friend class CZipArchive; 
	bool Read(CZipStorage *pStorage); 
	bool ReadLocal(CZipStorage *pStorage, WORD& iLocExtrFieldSize, bool& bIsDataDescr); 
	DWORD Write(CZipStorage *pStorage); 
 
}; 
 
#endif // !defined(AFX_FILEHEADER_H__0081FC65_C9C9_4D48_AF72_DBF37DF5E0CF__INCLUDED_)