unalz/UnAlz.cpp

//#include "stdafx.h"
#include "zlib/zlib.h"
#include "bzip2/bzlib.h"
#include "UnAlz.h"

// mkdir
#ifdef _WIN32				
#	include <direct.h>		
#else
#	include <sys/stat.h>
#endif

#ifdef _UNALZ_ICONV			// code page support
#	include <iconv.h>
#endif

#ifdef __linux__			// __BYTE_ORDER <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 
#	include <errno.h>		// iconv.h <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ʿ<EFBFBD> 
#endif


#define swapint64(Data) (INT64) ( (((Data)&0x00000000000000FFLL) << 56) | (((Data)&0x000000000000FF00LL) << 40) | (((Data)&0x0000000000FF0000LL) << 24) | (((Data)&0x00000000FF000000LL) << 8)  | (((Data)&0x000000FF00000000LL) >> 8)  | (((Data)&0x0000FF0000000000LL) >> 24) | (((Data)&0x00FF000000000000LL) >> 40) | (((Data)&0xFF00000000000000LL) >> 56) )
#define swapint32(a)    ((((a)&0xff)<<24)+(((a>>8)&0xff)<<16)+(((a>>16)&0xff)<<8)+(((a>>24)&0xff)))
#define swapint16(a)    (((a)&0xff)<<8)+(((a>>8)&0xff))

////////////////////////////////////////////////////////////////////////////
//// byte-order : little to host                                        ////
////////////////////////////////////////////////////////////////////////////

#ifdef _WIN32		// little to little
	inline UINT16	unalz_le16toh(UINT16 a){return a;}
	inline UINT32	unalz_le32toh(UINT32 a){return a;}
	inline UINT64	unalz_le64toh(UINT64 a){return a;}
#endif

#ifdef __FreeBSD__
#	include <sys/endian.h>	
	inline UINT16	unalz_le16toh(UINT16 a){return le16toh(a);}
	inline UINT32	unalz_le32toh(UINT32 a){return le32toh(a);}
	inline UINT64	unalz_le64toh(UINT64 a){return le64toh(a);}
#endif

#ifdef __APPLE__
#	include <machine/byte_order.h>
	inline UINT16   unalz_le16toh(UINT16 a){return NXSwapShort(a);} 
	inline UINT32   unalz_le32toh(UINT32 a){return NXSwapLong(a);} 
	inline UINT64   unalz_le64toh(UINT64 a){return NXSwapLongLong(a);} 
#endif


#ifdef __linux__	
#	include <endian.h>
#	if __BYTE_ORDER == __BIG_ENDIAN
	inline UINT16	unalz_le16toh(UINT16 a){return swapint16(a);}
	inline UINT32	unalz_le32toh(UINT32 a){return swapint32(a);}
	inline UINT64	unalz_le64toh(UINT64 a){return swapint64(a);}
#	else		// __LITTLE_ENDIAN
	inline UINT16	unalz_le16toh(UINT16 a){return (a);}
	inline UINT32	unalz_le32toh(UINT32 a){return (a);}
	inline UINT64	unalz_le64toh(UINT64 a){return (a);}
#	endif
//#	include <asm/byteorder.h>
//	inline UINT16	unalz_le16toh(UINT16 a){return le16_to_cpu(a);}
//	inline UINT32	unalz_le32toh(UINT32 a){return le32_to_cpu(a);}
//	inline UINT64	unalz_le64toh(UINT64 a){return le64_to_cpu(a);}
#endif



#ifndef MAX_PATH
#	define MAX_PATH 260
#endif

#ifdef _WIN32
#	define PATHSEP "\\"
#	define PATHSEPC '\\'
#else
#	define PATHSEP "/"
#	define PATHSEPC '/'
#endif



// error string table <- CUnAlz::ERR <20><> <20><><EFBFBD><EFBFBD>
static const char* errorstrtable[]=
{
	"no error",										// ERR_NOERR
	"can't open file",								// ERR_CANT_OPEN_FILE
	"can't read signature",							// ERR_CANT_READ_SIG
	"can't read file",								// ERR_CANT_READ_FILE
	"error at read header",							// ERR_AT_READ_HEADER
	"invalid filename length",						// ERR_INVALID_FILENAME_LENGTH
	"invalid extrafield length",					// ERR_INVALID_EXTRAFIELD_LENGTH,
	"can't read central directory structure head",	// ERR_CANT_READ_CENTRAL_DIRECTORY_STRUCTURE_HEAD, 
	"invalid filename size",						// ERR_INVALID_FILENAME_SIZE,
	"invalid extrafield size",						// ERR_INVALID_EXTRAFIELD_SIZE,
	"invalid filecomment size",						// ERR_INVALID_FILECOMMENT_SIZE,
	"cant' read header",							// ERR_CANT_READ_HEADER,
	"memory allocation failed",						// ERR_MEM_ALLOC_FAILED,
	"file read eror",								// ERR_FILE_READ_ERROR,
	"inflate failed",								// ERR_INFLATE_FAILED,
									
	"iconv-can't open iconv",						// ERR_ICONV_CANT_OPEN,
	"iconv-invalid multisequence of characters",	// ERR_ICONV_INVALID_MULTISEQUENCE_OF_CHARACTERS,
	"iconv-incomplete multibyte sequence",			// ERR_ICONV_INCOMPLETE_MULTIBYTE_SEQUENCE,
	"iconv-not enough space of buffer to convert",	// ERR_ICONV_NOT_ENOUGH_SPACE_OF_BUFFER_TO_CONVERT,
	"iconv-etc",									// ERR_ICONV_ETC,
};



////////////////////////////////////////////////////////////////////////////////////////////////////
///          ctor
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:19:49
////////////////////////////////////////////////////////////////////////////////////////////////////
CUnAlz::CUnAlz()
{
	memset(m_files, 0, sizeof(m_files));
	m_nErr = ERR_NOERR;
	m_posCur = (FileList::iterator)NULL;
	m_pFuncCallBack = NULL;
	m_pCallbackParam = NULL;
	m_bHalt = FALSE;
	m_nFileCount = 0;
	m_nCurFile = -1;
	m_nVirtualFilePos = 0;
	m_nCurFilePos = 0;
	m_bIsEOF = FALSE;

#ifdef _UNALZ_ICONV

#ifdef _UNALZ_UTF8
	strcpy(m_szToCodepage, "UTF-8") ;		// <20>⺻<EFBFBD><E2BABB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> utf-8
#else 
	strcpy(m_szToCodepage, "CP949") ;		// <20>⺻<EFBFBD><E2BABB><EFBFBD><EFBFBD><EFBFBD><EFBFBD> CP949
#endif // _UNALZ_UTF8

	strcpy(m_szFromCodepage, "CP949");		// alz <20><> 949 <20><> <20><><EFBFBD><EFBFBD>
#endif // _UNALZ_ICONV
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          dtor
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:19:52
////////////////////////////////////////////////////////////////////////////////////////////////////
CUnAlz::~CUnAlz()
{
	Close();
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          progress callback func setting
/// @date    2004-03-01 <20><><EFBFBD><EFBFBD> 6:02:05
////////////////////////////////////////////////////////////////////////////////////////////////////
void CUnAlz::SetCallback(_UnAlzCallback* pFunc, void* param)
{
	m_pFuncCallBack = pFunc;
	m_pCallbackParam = param;
}

#ifdef _WIN32
#ifndef __GNUWIN32__
////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
/// @param   szPathName  
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:03:59
////////////////////////////////////////////////////////////////////////////////////////////////////
#include <atlbase.h>
#include <atlconv.h>
BOOL CUnAlz::Open(LPCWSTR szPathName)
{
	USES_CONVERSION;
	return Open(W2A(szPathName));
}
////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ϱ<EFBFBD>.
/// @param   szFileName  
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:06:20
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::SetCurrentFile(LPCWSTR szFileName)
{
	USES_CONVERSION;
	return SetCurrentFile(W2A(szFileName));
}
BOOL CUnAlz::IsFolder(LPCWSTR szPathName)
{
	UINT32 dwRet;
	dwRet = GetFileAttributesW(szPathName);
	if(dwRet==0xffffffff) return FALSE;
	if(dwRet & FILE_ATTRIBUTE_DIRECTORY) return TRUE;
	return FALSE;
}
#endif // __GNUWIN32__
#endif // _WIN32

BOOL CUnAlz::Open(const char* szPathName)
{
	if(FOpen(szPathName)==FALSE) 
	{
		m_nErr = ERR_CANT_OPEN_FILE;
		return FALSE;
	}

	// file <20>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD>..
	for(;;)
	{
		SIGNATURE	sig;
		BOOL		ret;

		if(FEof()) break;
		//int pos = ftell(m_fp);
		sig = ReadSignature();
		if(sig==SIG_EOF)
		{
			break;
		}
		if(sig==SIG_ERROR)
		{
			return FALSE;						// <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>..
		}

		if(sig==SIG_ALZ_FILE_HEADER) ret = ReadAlzFileHeader();
		else if(sig==SIG_LOCAL_FILE_HEADER) ret = ReadLocalFileheader();
		else if(sig==SIG_CENTRAL_DIRECTORY_STRUCTURE) ret = ReadCentralDirectoryStructure();
		else if(sig==SIG_ENDOF_CENTRAL_DIRECTORY_RECORD) ret = ReadEndofCentralDirectoryRecord();
		else
		{
			// <20>̱<EFBFBD><CCB1><EFBFBD><EFBFBD><EFBFBD> signature
			ASSERT(0);
			return FALSE;
		}
		
		if(ret==FALSE) 
		{
			return FALSE;
		}

		if(FEof()) break;
	}

	return TRUE;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD> <20>ݱ<EFBFBD>..
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:04:21
////////////////////////////////////////////////////////////////////////////////////////////////////
void CUnAlz::Close()
{
	FClose();

	// <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>..
	FileList::iterator	i;

	for(i=m_fileList.begin(); i<m_fileList.end(); i++)
	{
		i->Clear();
	}

	m_posCur = (FileList::iterator)NULL;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          FILE <20><><EFBFBD><EFBFBD> SIGNATURE <20>б<EFBFBD>
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:04:47
////////////////////////////////////////////////////////////////////////////////////////////////////
CUnAlz::SIGNATURE CUnAlz::ReadSignature()
{
	UINT32	dwSig;
	if(FRead(&dwSig, sizeof(dwSig))==FALSE)
	{
//int pos = ftell(m_fp);
		if(FEof())
			return SIG_EOF;
		m_nErr = ERR_CANT_READ_SIG;
		return SIG_ERROR;
	}

	return (SIGNATURE)unalz_le32toh(dwSig);		// little to host;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          ALZ HEADER SIGNATURE <20>б<EFBFBD>
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:05:11
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::ReadAlzFileHeader()
{
	SAlzHeader	header;
	if(FRead(&header, sizeof(header))==FALSE)
	{
		ASSERT(0);
		m_nErr = ERR_CANT_READ_FILE;
		return FALSE;
	}

	return TRUE;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20>б<EFBFBD>
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:05:18
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::ReadLocalFileheader()
{
	SLocalFileHeader zipHeader;
	int ret;

	ret = FRead(&(zipHeader.head), sizeof(zipHeader.head));
	if(ret==FALSE) 
	{
		m_nErr = ERR_AT_READ_HEADER;
		return FALSE;
	}

	// ALZ Ȯ<><C8AE>..
	int byteLen = zipHeader.head.fileSizeByte/0x10;

	if(byteLen)
	{
		FRead(&(zipHeader.compressionMethod),	sizeof(zipHeader.compressionMethod));
		FRead(&(zipHeader.unknown3),			sizeof(zipHeader.unknown3));
		FRead(&(zipHeader.maybeCRC),			sizeof(zipHeader.maybeCRC));

		FRead(&(zipHeader.compressedSize), byteLen);
		FRead(&(zipHeader.uncompressedSize),  byteLen);			// <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>.
	}

	// little to system 
    zipHeader.head.fileNameLength   =   unalz_le16toh(zipHeader.head.fileNameLength);
    zipHeader.compressedSize        =   unalz_le64toh(zipHeader.compressedSize);
    zipHeader.uncompressedSize      =   unalz_le64toh(zipHeader.uncompressedSize); 

	// FILE NAME
	zipHeader.fileName = (char*)malloc(zipHeader.head.fileNameLength+1);
	if(zipHeader.fileName==NULL)
	{
		m_nErr = ERR_INVALID_FILENAME_LENGTH;
		return FALSE;
	}
	FRead(zipHeader.fileName, zipHeader.head.fileNameLength);
	zipHeader.fileName[zipHeader.head.fileNameLength] = (CHAR)NULL;


#ifdef _UNALZ_ICONV		// codepage convert

	if(strlen(m_szToCodepage))
	{

	#define ICONV_BUF_SIZE	(260*6)			// utf8 <20><> <20>ִ<EFBFBD> 6byte 
	size_t ileft, oleft;
	iconv_t cd;
	size_t iconv_result;
	size_t size;
	char inbuf[ICONV_BUF_SIZE];
	char outbuf[ICONV_BUF_SIZE];
#ifdef __FreeBSD__
	const char *inptr = inbuf;
#else
	char *inptr = inbuf;
#endif
	char *outptr = outbuf;
	
	size = strlen(zipHeader.fileName)+1;
	strncpy(inbuf, zipHeader.fileName, size);
	ileft = size;
	oleft = sizeof(outbuf);
	
	cd = iconv_open(m_szToCodepage, m_szFromCodepage);		// <20><><EFBFBD><EFBFBD> "CP949" <20><><EFBFBD><EFBFBD> "UTF-8" <20><> 
	iconv(cd, NULL, NULL, NULL, NULL);
	if( cd == (iconv_t)(-1)) 
	{
		m_nErr = ERR_ICONV_CANT_OPEN;		// printf("Converting Error : Cannot open iconv");
		return FALSE;
	}
	else
	{
		iconv_result = iconv(cd, &inptr, &ileft, &outptr, &oleft);
		
		if(iconv_result== (size_t)(-1))		// iconv <20><><EFBFBD><EFBFBD>..
		{
			if (errno == EILSEQ) 
				m_nErr = ERR_ICONV_INVALID_MULTISEQUENCE_OF_CHARACTERS; // printf("Invalid Multibyte Sequence of Characters");
			else if (errno == EINVAL) 
				m_nErr = ERR_ICONV_INCOMPLETE_MULTIBYTE_SEQUENCE; //printf("Incomplete  multibyte sequence");
			else if (errno != E2BIG) 
				m_nErr = ERR_ICONV_NOT_ENOUGH_SPACE_OF_BUFFER_TO_CONVERT;	// printf("Not enough space of buffer to convert");
			else 
				m_nErr = ERR_ICONV_ETC;
			iconv_close(cd);
			return FALSE;
		} 
		else 
		{
			outbuf[ICONV_BUF_SIZE-oleft] = 0;
			strcpy(zipHeader.fileName, outbuf);
			// printf("\n  Converted File Name : %s", outbuf);
		}
		
		iconv_close(cd);
    }

	}
#endif

	/*
	// EXTRA FIELD LENGTH
	if(zipHeader.head.extraFieldLength)
	{
		zipHeader.extraField = (BYTE*)malloc(zipHeader.head.extraFieldLength);
		if(zipHeader.extraField==NULL)
		{
			m_nErr = ERR_INVALID_EXTRAFIELD_LENGTH;
			return FALSE;
		}
		FRead(zipHeader.extraField, 1, zipHeader.head.extraFieldLength);
	}
	*/

	// SKIP FILE DATA
	zipHeader.dwFileDataPos = FTell();						// data <20><> <20><>ġ <20><><EFBFBD><EFBFBD><EFBFBD>ϱ<EFBFBD>..
	FSeek(FTell()+zipHeader.compressedSize);

	// DATA DESCRIPTOR
	/*
	if(zipHeader.head.generalPurposeBitFlag.bit1)
	{
		FRead(zipHeader.extraField, 1, sizeof(zipHeader.extraField),);
	}
	*/

#ifdef _DEBUG
	printf("NAME:%s COMPRESSED SIZE:%d UNCOMPRESSED SIZE:%d COMP METHOD:%d\n", 
		zipHeader.fileName, 
		zipHeader.compressedSize, 
		zipHeader.uncompressedSize,
		zipHeader.compressionMethod
		);
#endif

	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>Ͽ<EFBFBD> <20>߰<EFBFBD><DFB0>Ѵ<EFBFBD>..
	m_fileList.push_back(zipHeader);

	return TRUE;
}


BOOL CUnAlz::ReadCentralDirectoryStructure()
{
	SCentralDirectoryStructure header;

	if(FRead(&header, sizeof(header.head))==FALSE)
	{
		m_nErr = ERR_CANT_READ_CENTRAL_DIRECTORY_STRUCTURE_HEAD;
		return FALSE;
	}

	/*
	// read file name
	if(header.head.fileNameLength)
	{
		header.fileName = (char*)malloc(header.head.fileNameLength+1);
		if(header.fileName==NULL)
		{
			m_nErr = ERR_INVALID_FILENAME_SIZE;
			return FALSE;
		}
		FRead(header.fileName, 1, header.head.fileNameLength, m_fp);
		header.fileName[header.head.fileNameLength] = NULL;
	}

	// extra field;
	if(header.head.extraFieldLength)
	{
		header.extraField = (BYTE*)malloc(header.head.extraFieldLength);
		if(header.extraField==NULL)
		{
			m_nErr = ERR_INVALID_EXTRAFIELD_SIZE;
			return FALSE;
		}
		FRead(header.extraField, 1, header.head.extraFieldLength, m_fp);
	}

	// file comment;
	if(header.head.fileCommentLength)
	{
		header.fileComment = (char*)malloc(header.head.fileCommentLength+1);
		if(header.fileComment==NULL)
		{
			m_nErr = ERR_INVALID_FILECOMMENT_SIZE;
			return FALSE;
		}
		FRead(header.fileComment, 1, header.head.fileCommentLength, m_fp);
		header.fileComment[header.head.fileCommentLength] = NULL;
	}

	*/

	return TRUE;
}


BOOL CUnAlz::ReadEndofCentralDirectoryRecord()
{
	/*
	SEndOfCentralDirectoryRecord	header;

	if(FRead(&header, sizeof(header.head), 1, m_fp)!=1)
	{
		m_nErr = ERR_CANT_READ_HEADER;
		return FALSE;
	}

	if(header.head.zipFileCommentLength)
	{
		header.fileComment = (char*)malloc(header.head.zipFileCommentLength+1);
		if(header.fileComment==NULL)
		{
			m_nErr = ERR_INVALID_FILECOMMENT_SIZE;
			return FALSE;
		}
		FRead(header.fileComment, 1, header.head.zipFileCommentLength, m_fp);
		header.fileComment[header.head.zipFileCommentLength] = NULL;
	}
	*/

	return TRUE;
}


BOOL CUnAlz::SetCurrentFile(const char* szFileName)
{
	FileList::iterator	i;

	// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ã<>´<EFBFBD>.
	for(i=m_fileList.begin(); i<m_fileList.end(); i++)
	{
#ifdef _WIN32
		if(stricmp(i->fileName, szFileName)==0)
#else
		if(strcmp(i->fileName, szFileName)==0)
#endif
		{
			m_posCur = i;
			return TRUE;
		}
	}

	m_posCur = (FileList::iterator)NULL;

	return FALSE;
}

#ifndef MAX_WBITS
#  define MAX_WBITS   15 /* 32K LZ77 window */
#endif


////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD>ۿ<EFBFBD> <20><><EFBFBD><EFBFBD> Ǯ<><C7AE>. <20><><EFBFBD>۴<EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ũ<>Ⱑ <20>غ<EFBFBD><D8BA>Ǿ<EFBFBD> <20>־<EFBFBD><D6BE><EFBFBD> <20>Ѵ<EFBFBD>.
/// @param   pDestBuf  
/// @return  
/// @date    2004-03-07 <20><><EFBFBD><EFBFBD> 12:26:13
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::ExtractCurrentFileToBuf(BYTE* pDestBuf, int nBufSize)
{
	SExtractDest	dest;
	dest.nType = ET_MEM;
	dest.buf = pDestBuf;
	dest.bufpos = 0;
	dest.bufsize = nBufSize;
	return ExtractTo(&dest);
}


////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> (SetCurrentFile<6C><65> <20><>)<29><> <20><><EFBFBD><EFBFBD> <20><><EFBFBD>ο<EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD>Ϸ<EFBFBD> Ǭ<><C7AC>.
/// @param   szDestPathName  - <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
/// @param   szDestFileName  - <20><><EFBFBD><EFBFBD> <20><><EFBFBD>ϸ<EFBFBD>, NULL <20≯<EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD>ϸ<EFBFBD> <20><><EFBFBD><EFBFBD>
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:06:59
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::ExtractCurrentFile(const char* szDestPathName, const char* szDestFileName)
{
	if(m_posCur==(FileList::iterator)NULL) {ASSERT(0); return FALSE;}

	BOOL	ret=FALSE;

	SExtractDest	dest;
	char	szDestPathFileName[MAX_PATH];
	
	// <20><><EFBFBD>θ<EFBFBD>
	strcpy(szDestPathFileName, szDestPathName);
	if(szDestPathFileName[strlen(szDestPathFileName)]!=PATHSEPC)
		strcat(szDestPathFileName, PATHSEP);

	// <20><><EFBFBD>ϸ<EFBFBD>
	if(szDestFileName) strcat(szDestPathFileName, szDestFileName);
	else strcat(szDestPathFileName, m_posCur->fileName);

#ifndef _WIN32 
	{
		char* p = szDestPathFileName;			// <20><><EFBFBD><EFBFBD> delimiter <20>ٲٱ<D9B2> 
		while(*p)
		{
			if(*p=='\\') *p='/';
			p++;
		}
	}
#endif

	// <20><><EFBFBD><EFBFBD>Ǯ <20><><EFBFBD><EFBFBD> ( <20><><EFBFBD><EFBFBD> )
	dest.nType = ET_FILE;
	dest.fp = fopen(szDestPathFileName, "wb");

	if(dest.fp==NULL) 
	{
		DigPath(szDestPathFileName);		// <20><><EFBFBD>θ<EFBFBD><CEB8><EFBFBD> / <20><> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>..
		dest.fp = fopen(szDestPathFileName, "wb");
	}

#ifdef _WIN32
	if(dest.fp==NULL) 
	{
		ASSERT(0); 
		if(m_pFuncCallBack)
		{
			CHAR buf[1024];
			sprintf(buf, "<EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> : %s", szDestPathFileName);
			m_pFuncCallBack(buf, 0,0,m_pCallbackParam, NULL);
		}
		return FALSE;
	}
#endif
	// CALLBACK <20><><EFBFBD><EFBFBD>
	if(m_pFuncCallBack) m_pFuncCallBack(m_posCur->fileName, 0,m_posCur->uncompressedSize,m_pCallbackParam, NULL);

	ret = ExtractTo(&dest);
	if(dest.fp!=NULL)fclose(dest.fp);
	return ret;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> Ǯ<><C7AE>..
/// @param   dest  
/// @return  
/// @date    2004-03-07 <20><><EFBFBD><EFBFBD> 12:44:36
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::ExtractTo(SExtractDest* dest)
{
	BOOL ret = FALSE;
	// <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> Ǯ<><C7AE>
	if(m_posCur->compressionMethod==COMP_NOCOMP)
	{
		ret = ExtractRawfile(dest, *m_posCur);
	}
	else if(m_posCur->compressionMethod==COMP_BZIP2)
	{
		ret = ExtractBzip2(dest, *m_posCur);			// bzip2
	}
	else if(m_posCur->compressionMethod==COMP_DEFLATE)
	{
		ret = ExtractDeflate2(dest, *m_posCur);			// deflate
	}
	else
	{
		ASSERT(0);										// <20><><EFBFBD>ο<EFBFBD> <20><><EFBFBD><EFBFBD> ???
		ret = FALSE;
	}
	return ret;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          DEFLATE <20><> Ǯ<><C7AE> - <20>׽<EFBFBD>Ʈ<EFBFBD><C6AE> <20>Լ<EFBFBD>. <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>Ѳ<EFBFBD><D1B2><EFBFBD><EFBFBD><EFBFBD> <20>о Ǭ<><C7AC>. <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>.
/// @param   fp  - <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
/// @param   file  - <20>ҽ<EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:09:17
////////////////////////////////////////////////////////////////////////////////////////////////////
/*
BOOL CUnAlz::ExtractDeflate(FILE* fp, SLocalFileHeader& file)
{
	z_stream	stream;
	BYTE*		pInBuf=NULL;
	BYTE*		pOutBuf=NULL;
	int			nInBufSize = file.compressedSize;
	int			nOutBufSize = file.uncompressedSize;
	int			err;
	int			flush=Z_SYNC_FLUSH;
	BOOL		ret = FALSE;

	memset(&stream, 0, sizeof(stream));

	pInBuf = (BYTE*)malloc(nInBufSize);
	if(pInBuf==NULL)
	{
		m_nErr = ERR_MEM_ALLOC_FAILED;
		goto END;
	}

	pOutBuf = (BYTE*)malloc(nOutBufSize);
	if(pOutBuf==NULL)
	{
		m_nErr = ERR_MEM_ALLOC_FAILED;
		goto END;
	}

	// <20>ѹ<EFBFBD><D1B9><EFBFBD> <20>о
	fseek(m_fp, file.dwFileDataPos, SEEK_SET);
	if(FRead(pInBuf, nInBufSize, 1, m_fp)!=1)
	{
		m_nErr = ERR_FILE_READ_ERROR;
		goto END;
	}

	// <20>ʱ<EFBFBD>ȭ..
	inflateInit2(&stream, -MAX_WBITS);

	stream.next_out = pOutBuf;
	stream.avail_out = nOutBufSize;
	stream.next_in = pInBuf;
	stream.avail_in = nInBufSize;

	err = inflate(&stream, flush);

	if(err!=Z_OK && err!=Z_STREAM_END )
	{
		m_nErr = ERR_INFLATE_FAILED;
		goto END;
	}

	fwrite(pOutBuf, 1, nOutBufSize, fp);

	ret = TRUE;

END :
	inflateEnd(&stream);

	if(pInBuf) free(pInBuf);
	if(pOutBuf) free(pOutBuf);
	return ret;
}
*/

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> Ǯ<><C7AE>
/// @param   szDestPathName  - <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:09:49
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::ExtractAll(const char* szDestPathName)
{
	FileList::iterator	i;

	for(i=m_fileList.begin(); i<m_fileList.end(); i++)
	{
		m_posCur = i;
		ExtractCurrentFile(szDestPathName);
		if(m_bHalt) 
			break;							// <20><><EFBFBD>߱<EFBFBD>..
	}

	return TRUE;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20>ı<EFBFBD> - <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>Ǵ<EFBFBD>(dig)
/// @param   szPathName  
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:10:12
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::DigPath(const char* szPathName)
{
	char* dup = strdup(szPathName);
	char seps[]   = "/\\";
	char *token;
	char	path[MAX_PATH] = {0};
	char*	last;

	// <20><><EFBFBD>θ<EFBFBD> <20>̱<EFBFBD>.
	last = dup + strlen(dup);
	while(last!=dup)
	{
		if(*last=='/' || *last=='\\') 
		{
			*last = (char)NULL;
			break;
		}
		last --;
	}

	token = strtok( dup, seps );
	while( token != NULL )
	{
		if(strlen(path)==0) 
			strcpy(path, token);
		else
		{
			strcat(path, PATHSEP);
			strcat(path, token);
		}

		if(IsFolder(path)==FALSE)
#ifdef _WIN32
			_mkdir(path);
#else
			mkdir(path,  S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH);
#endif
		token = strtok( NULL, seps );
	}

	free(dup);
	if(IsFolder(szPathName)) return TRUE;
	return FALSE;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD> <20><><EFBFBD><EFBFBD> <20>ΰ<EFBFBD>?
/// @param   szPathName  
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:03:26
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::IsFolder(LPCSTR szPathName)
{
#ifdef _WIN32
	UINT32 dwRet;
	dwRet = GetFileAttributesA(szPathName);
	if(dwRet==0xffffffff) return FALSE;
	if(dwRet & FILE_ATTRIBUTE_DIRECTORY) return TRUE;
	return FALSE;
#else

	struct stat buf;
	int result;

	result = stat(szPathName, &buf);
	if(result!=0) return FALSE;
//printf("isfolder:%s, %d,%d,%d\n", szPathName, buf.st_mode, S_IFDIR, buf.st_mode & S_IFDIR);
	if(buf.st_mode & S_IFDIR) return TRUE;
	return FALSE;
#endif
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Ǯ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Ǭ<><C7AC>.
/// @param   dest  - <20><><EFBFBD><EFBFBD> OBJECT
/// @param   buf  - Ǯ<><C7AE> <20><><EFBFBD><EFBFBD>Ÿ
/// @param   nSize  - <20><><EFBFBD><EFBFBD>Ÿ<EFBFBD><C5B8> ũ<><C5A9>
/// @return  <20><> <20><><EFBFBD><EFBFBD>Ʈ<EFBFBD><C6AE>. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> -1 <20><><EFBFBD><EFBFBD>
/// @date    2004-03-07 <20><><EFBFBD><EFBFBD> 12:37:41
////////////////////////////////////////////////////////////////////////////////////////////////////
int	CUnAlz::WriteToDest(SExtractDest* dest, BYTE* buf, int nSize)
{
	if(dest->nType==ET_FILE)
	{
		return fwrite(buf,  1, nSize, dest->fp);
	}
	else if(dest->nType==ET_MEM)
	{
		if(dest->bufpos+nSize >dest->bufsize)		// <20><><EFBFBD><EFBFBD>.. <20><><EFBFBD>۰<EFBFBD> <20><><EFBFBD>ƴ<EFBFBD>.
		{
			ASSERT(0);
			return -1;
		}
		// memcpy
		memcpy(dest->buf + dest->bufpos, buf, nSize);
		dest->bufpos += nSize;
		return nSize;
	}
	else
	{
		ASSERT(0);
	}
	return -1;
}

/* <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>.. <20><><EFBFBD><EFBFBD><EFBFBD>Ѱ<EFBFBD> <20>Ʊ<EFBFBD><C6B1><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>.
#define ALZDLZ_HEADER_SIZE	4		// alz <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> bzip2 <20><><EFBFBD><EFBFBD> ũ<><C5A9>
#define BZIP2_HEADER_SIZE	10		// bzip <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> ũ<><C5A9>
#define BZIP2_CRC_SIZE		4		// bzip2 <20><> crc
#define BZIP2_TAIL_SIZE		10		// <20><><EFBFBD><EFBFBD> 4+5 <20><><EFBFBD><EFBFBD>.?
BYTE bzip2Header[BZIP2_HEADER_SIZE] = {0x42, 0x5a, 0x68, 0x39, 0x31, 0x41, 0x59, 0x26, 0x53, 0x59};

BOOL CUnAlz::ExtractBzip2_bak(FILE* fp, SLocalFileHeader& file)
{
	bz_stream	stream;
	BYTE*		pInBuf=NULL;
	BYTE*		pOutBuf=NULL;
	int			nInBufSize = file.compressedSize;
	int			nOutBufSize = file.uncompressedSize;
	//int			err;
	int			flush=Z_SYNC_FLUSH;
	BOOL		ret = FALSE;
	UINT32 crc = 0xffffffff;

	//BYTE		temp[100];
	
	memset(&stream, 0, sizeof(stream));

	pInBuf = (BYTE*)malloc(nInBufSize + BZIP2_HEADER_SIZE + BZIP2_CRC_SIZE - ALZDLZ_HEADER_SIZE + BZIP2_TAIL_SIZE);
	if(pInBuf==NULL)
	{
		m_nErr = ERR_MEM_ALLOC_FAILED;
		goto END;
	}

	pOutBuf = (BYTE*)malloc(nOutBufSize);
	if(pOutBuf==NULL)
	{
		m_nErr = ERR_MEM_ALLOC_FAILED;
		goto END;
	}

	// ALZ <20><> BZIP <20><><EFBFBD><EFBFBD> ("DLZ.") <20><>ŵ<EFBFBD>ϱ<EFBFBD>.
	fseek(m_fp, ALZDLZ_HEADER_SIZE, SEEK_CUR);
	// BZIP2 <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
	memcpy(pInBuf, bzip2Header, BZIP2_HEADER_SIZE);
	// BZIP2 CRC
	memcpy(pInBuf+BZIP2_HEADER_SIZE, &(crc), BZIP2_CRC_SIZE);

	// <20><>¥ <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>Ÿ<EFBFBD><C5B8>  <20>ѹ<EFBFBD><D1B9><EFBFBD> <20>о
	fseek(m_fp, file.dwFileDataPos+ALZDLZ_HEADER_SIZE, SEEK_SET);
	if(FRead(pInBuf+BZIP2_HEADER_SIZE+BZIP2_CRC_SIZE, nInBufSize-ALZDLZ_HEADER_SIZE, 1, m_fp)!=1)
	{
		m_nErr = ERR_FILE_READ_ERROR;
		goto END;
	}


	// <20>ʱ<EFBFBD>ȭ..
	stream.bzalloc = NULL;
	stream.bzfree = NULL;
	stream.opaque = NULL;
	ret = BZ2_bzDecompressInit ( &stream, 3,0 );
	if (ret != BZ_OK) goto END;


	//memcpy(temp, pInBuf, 100);

	stream.next_in = (char*)pInBuf;
	stream.next_out = (char*)pOutBuf;
	stream.avail_in = nInBufSize+BZIP2_HEADER_SIZE+BZIP2_CRC_SIZE+BZIP2_TAIL_SIZE;
	stream.avail_out = nOutBufSize;


	ret = BZ2_bzDecompress ( &stream );

	// BZ_DATA_ERROR <20><> <20><><EFBFBD>ϵ<EFBFBD> <20><> <20>ִ<EFBFBD>..
	//if (ret == BZ_OK) goto END;
	//if (ret != BZ_STREAM_END) goto END;

	BZ2_bzDecompressEnd(&stream);

	fwrite(pOutBuf, 1, nOutBufSize, fp);

	ret = TRUE;

END :

	if(pInBuf) free(pInBuf);
	if(pOutBuf) free(pOutBuf);

	if(ret==FALSE) 	BZ2_bzDecompressEnd(&stream);

	return ret;
}
*/

////////////////////////////////////////////////////////////////////////////////////////////////////
///          RAW <20><> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> Ǯ<><C7AE>
/// @param   fp  - <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
/// @param   file  - <20>ҽ<EFBFBD> <20><><EFBFBD><EFBFBD>
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:10:53
////////////////////////////////////////////////////////////////////////////////////////////////////
#define BUF_LEN		(4096*2)
BOOL CUnAlz::ExtractRawfile(SExtractDest* dest, SLocalFileHeader& file)
{
	BOOL	ret = FALSE;
	BYTE	buf[BUF_LEN];
	INT64	read;
	INT64	sizeToRead;
	INT64   bufLen = BUF_LEN;
	INT64	nWritten = 0;
	BOOL	bHalt = FALSE;

	// <20><>ġ <20><><EFBFBD><EFBFBD>.
	FSeek(file.dwFileDataPos);

	sizeToRead = file.compressedSize;			// <20><><EFBFBD><EFBFBD> ũ<><C5A9>.

	while(sizeToRead)
	{
		read = min(sizeToRead, bufLen);
		if(FRead(buf, (int)read)==FALSE)
		{
			break;
		}
		WriteToDest(dest, buf, (int)read);
		//fwrite(buf, read, 1, fp);
		sizeToRead -= read;

		nWritten+=read;

		// progress callback
		if(m_pFuncCallBack)
		{
			m_pFuncCallBack(NULL, nWritten, file.uncompressedSize, m_pCallbackParam, &bHalt);
			if(bHalt) 
			{
				break;
			}
		}
	}

	m_bHalt = bHalt;
	ret = TRUE;
	return ret;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          BZIP2 <20><><EFBFBD><EFBFBD> Ǯ<><C7AE>..
/// @param   fp_w  - <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
/// @param   file  - <20>ҽ<EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
/// @return  
/// @date    2004-03-01 <20><><EFBFBD><EFBFBD> 5:47:36
////////////////////////////////////////////////////////////////////////////////////////////////////
#define BZIP2_EXTRACT_BUF_SIZE	0x2000
BOOL CUnAlz::ExtractBzip2(SExtractDest* dest, SLocalFileHeader& file)
{
	BZFILE	*bzfp = NULL;
	int		smallMode = 0;
	int		verbosity = 1;
	int		bzerr;
	INT64	len;
	char	buff[BZIP2_EXTRACT_BUF_SIZE];
	INT64	nWritten = 0;
	BOOL	bHalt = FALSE;

	FSeek(file.dwFileDataPos);

	bzfp = BZ2_bzReadOpen(&bzerr,this,verbosity,smallMode,0,0);

	if(bzfp==NULL){ASSERT(0); return FALSE;}

	while((len=BZ2_bzread(bzfp,buff,BZIP2_EXTRACT_BUF_SIZE))>0)
	{
		WriteToDest(dest, (BYTE*)buff, (int)len);
		//fwrite(buff,1,len,fp_w);

		nWritten+=len;

		// progress callback
		if(m_pFuncCallBack)
		{
			m_pFuncCallBack(NULL, nWritten, file.uncompressedSize, m_pCallbackParam, &bHalt);
			if(bHalt) 
			{
				break;
			}
		}
	}

	BZ2_bzReadClose( &bzerr, bzfp);

	m_bHalt = bHalt;

	/*		
	// FILE* <20><> <20><><EFBFBD><EFBFBD><EFBFBD>Ұ<EFBFBD><D2B0><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>ϴ<EFBFBD> <20>ڵ<EFBFBD>. - <20><>Ƽ <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>..
	BZFILE	*bzfp = NULL;
	int		smallMode = 0;
	int		verbosity = 1;
	int		bzerr;
	int		len;
	char	buff[BZIP2_EXTRACT_BUF_SIZE];
	INT64	nWritten = 0;
	BOOL	bHalt = FALSE;

	FSeek(file.dwFileDataPos, SEEK_SET);

	bzfp = BZ2_bzReadOpen(&bzerr,m_fp,verbosity,smallMode,0,0);

	while((len=BZ2_bzread(bzfp,buff,BZIP2_EXTRACT_BUF_SIZE))>0)
	{
		WriteToDest(dest, (BYTE*)buff, len);
		//fwrite(buff,1,len,fp_w);

		nWritten+=len;

		// progress callback
		if(m_pFuncCallBack)
		{
			m_pFuncCallBack(NULL, nWritten, file.uncompressedSize, m_pCallbackParam, &bHalt);
			if(bHalt) 
			{
				break;
			}
		}
	}

	BZ2_bzReadClose( &bzerr, bzfp);

	m_bHalt = bHalt;
	*/

	return TRUE;
}


#ifndef UNZ_BUFSIZE
#define UNZ_BUFSIZE		0x1000 // (16384)
#endif

#define IN_BUF_SIZE		UNZ_BUFSIZE
#define OUT_BUF_SIZE	0x1000 //IN_BUF_SIZE

////////////////////////////////////////////////////////////////////////////////////////////////////
///          deflate <20><> <20><><EFBFBD><EFBFBD> Ǯ<><C7AE>. ExtractDeflate() <20><> <20>޸<EFBFBD> <20><><EFBFBD>ݾ<EFBFBD> <20>о Ǭ<><C7AC>.
/// @param   fp  
/// @param   file  
/// @return  
/// @date    2004-03-06 <20><><EFBFBD><EFBFBD> 11:11:36
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::ExtractDeflate2(SExtractDest* dest, SLocalFileHeader& file)
{
	z_stream	stream;
	BYTE		pInBuf[IN_BUF_SIZE];
	BYTE		pOutBuf[OUT_BUF_SIZE];
	int			nInBufSize = IN_BUF_SIZE;
	int			nOutBufSize = OUT_BUF_SIZE;
	int			err;
	int			flush=Z_SYNC_FLUSH;
	BOOL		ret = FALSE;
	INT64		nRestReadCompressed;
	UINT32		dwCRC32= 0;
	INT64		rest_read_uncompressed;
	UINT		iRead = 0;
	INT64	nWritten = 0;
	BOOL	bHalt = FALSE;

	memset(&stream, 0, sizeof(stream));

	FSeek(file.dwFileDataPos);

	inflateInit2(&stream, -MAX_WBITS);
	nRestReadCompressed = file.compressedSize;
	rest_read_uncompressed = file.uncompressedSize;

	// <20><><EFBFBD><EFBFBD> <20>κ<EFBFBD>.
	stream.next_out = pOutBuf;
	stream.avail_out = OUT_BUF_SIZE;

	while(stream.avail_out>0)
	{
		if(stream.avail_in==0 && nRestReadCompressed>0)
		{
			UINT uReadThis = UNZ_BUFSIZE;
			if (nRestReadCompressed<(int)uReadThis)
				uReadThis = (UINT)nRestReadCompressed;		// <20><><EFBFBD><EFBFBD> ũ<><C5A9>.

			if (uReadThis == 0)
				break;					// <20><><EFBFBD><EFBFBD>

			if(FRead(pInBuf, uReadThis)==FALSE)
			{
				m_nErr = ERR_CANT_READ_FILE;
				goto END;
			}

			nRestReadCompressed -= uReadThis;
			stream.next_in = pInBuf;
			stream.avail_in = uReadThis;
		}

        UINT uTotalOutBefore,uTotalOutAfter;
        const BYTE *bufBefore;
        UINT uOutThis;
        int flush=Z_SYNC_FLUSH;

        uTotalOutBefore = stream.total_out;
        bufBefore = stream.next_out;

        err=inflate(&stream,flush);

        uTotalOutAfter = stream.total_out;
        uOutThis = uTotalOutAfter-uTotalOutBefore;
        
        dwCRC32 = crc32(dwCRC32,bufBefore, (UINT)(uOutThis));

        rest_read_uncompressed -= uOutThis;

        iRead += (UINT)(uTotalOutAfter - uTotalOutBefore);
		
		WriteToDest(dest, pOutBuf, uOutThis);
		//fwrite(pOutBuf, uOutThis, 1, fp);		// file <20><> <20><><EFBFBD><EFBFBD>.
		stream.next_out = pOutBuf;
		stream.avail_out = OUT_BUF_SIZE;

		nWritten+=uOutThis;

		// progress callback
		if(m_pFuncCallBack)
		{
			m_pFuncCallBack(NULL, nWritten, file.uncompressedSize, m_pCallbackParam, &bHalt);
			if(bHalt) 
			{
				break;
			}
		}

        if (err==Z_STREAM_END)
			break;
			//if(iRead==0) break; // UNZ_EOF;
        if (err!=Z_OK) 
		{
			m_nErr = ERR_INFLATE_FAILED;
            goto END;
		}
	}

	m_bHalt = bHalt;

	ret = TRUE;

END :
	inflateEnd(&stream);

	return ret;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>
/// @param   szPathName  
/// @return  
/// @date    2004-10-02 <20><><EFBFBD><EFBFBD> 11:47:14
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::FOpen(const char* szPathName)
{
	char* temp = strdup(szPathName);			// <20><><EFBFBD>ϸ<EFBFBD> <20><><EFBFBD><EFBFBD>..
	int	  i;
	int	  nLen = strlen(szPathName);
	UINT64 nFileSizeLow;
	UINT32 dwFileSizeHigh;
	m_nFileCount = 0;
	m_nCurFile = 0;
	m_nVirtualFilePos = 0;
	m_nCurFilePos = 0;
	m_bIsEOF = FALSE;
	for(i=0;i<MAX_FILES;i++)						// aa.alz <20><><EFBFBD>ϸ<EFBFBD><CFB8><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> aa.a00 aa.a01 aa.a02 .. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
	{
		if(i>0) sprintf(temp+nLen-3, "%c%02d", (i-1)/100+'a', (i-1)%100);
#ifdef _WIN32
		m_files[i].fp = CreateFileA(temp, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN, NULL);
		if(m_files[i].fp==INVALID_HANDLE_VALUE) break;
		nFileSizeLow = GetFileSize(m_files[i].fp, (DWORD*)&dwFileSizeHigh);
#else
		m_files[i].fp = fopen(temp, "rb");
		if(m_files[i].fp==NULL) break;
		dwFileSizeHigh=0;
		fseek(m_files[i].fp,0,SEEK_END);		
		nFileSizeLow=ftell(m_files[i].fp);
		fseek(m_files[i].fp,0,SEEK_SET);
#endif
		m_nFileCount++;
		m_files[i].nFileSize = ((INT64)nFileSizeLow) + (((INT64)dwFileSizeHigh)<<32);
		if(i==0) m_files[i].nMultivolHeaderSize = 0;
		else m_files[i].nMultivolHeaderSize = MULTIVOL_HEAD_SIZE;
		m_files[i].nMultivolTailSize = MULTIVOL_TAIL_SIZE;
	}
	free(temp);
	if(m_nFileCount==0) return FALSE;
	m_files[m_nFileCount-1].nMultivolTailSize = 0;			// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>..
	return TRUE;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD> <20>ݱ<EFBFBD>
/// @return  
/// @date    2004-10-02 <20><><EFBFBD><EFBFBD> 11:48:53
////////////////////////////////////////////////////////////////////////////////////////////////////
void CUnAlz::FClose()
{
	int i;
#ifdef _WIN32
	for(i=0;i<m_nFileCount;i++) CloseHandle(m_files[i].fp);
#else
	for(i=0;i<m_nFileCount;i++) fclose(m_files[i].fp);
#endif
	memset(m_files, 0, sizeof(m_files));
	m_nFileCount = 0;
	m_nCurFile = -1;
	m_nVirtualFilePos = 0;
	m_nCurFilePos = 0;
	m_bIsEOF = FALSE;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>ΰ<EFBFBD>?
/// @return  
/// @date    2004-10-02 <20><><EFBFBD><EFBFBD> 11:48:21
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::FEof()
{
	return m_bIsEOF;
	/*
	if(m_fp==NULL){ASSERT(0); return TRUE;}
	if(feof(m_fp)) return TRUE;
	return FALSE;
	*/
}


////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><>ġ
/// @return  
/// @date    2004-10-02 <20><><EFBFBD><EFBFBD> 11:50:50
////////////////////////////////////////////////////////////////////////////////////////////////////
INT64 CUnAlz::FTell()
{
	return m_nVirtualFilePos;	//	return ftell(m_fp);
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD> <20><>ġ <20><><EFBFBD><EFBFBD>
/// @param   offset  
/// @param   origin  
/// @return  
/// @date    2004-10-02 <20><><EFBFBD><EFBFBD> 11:51:53
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::FSeek(INT64 offset)
{
	m_nVirtualFilePos = offset;
	int		i;
	INT64	remain=offset;
	LONG	remainHigh;

	m_bIsEOF = FALSE;

	for(i=0;i<m_nFileCount;i++)			// <20>տ<EFBFBD><D5BF><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD>鼭 <20><>ġ <20><><EFBFBD><EFBFBD><EFBFBD>ϱ<EFBFBD>..
	{
		if(remain<=m_files[i].nFileSize-m_files[i].nMultivolHeaderSize-m_files[i].nMultivolTailSize)
		{
			m_nCurFile = i;
			m_nCurFilePos = remain+m_files[i].nMultivolHeaderSize;			// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><>ġ.
			remainHigh = (LONG)((m_nCurFilePos>>32)&0xffffffff);
#ifdef _WIN32
			SetFilePointer(m_files[i].fp, LONG(m_nCurFilePos), &remainHigh, FILE_BEGIN);
#else
			fseek(m_files[i].fp, m_nCurFilePos, SEEK_SET);
#endif
			return TRUE;
		}
		remain -= (m_files[i].nFileSize-m_files[i].nMultivolHeaderSize-m_files[i].nMultivolTailSize);
	}

	// <20><><EFBFBD><EFBFBD>..?
	ASSERT(0);
	return FALSE;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          <20><><EFBFBD><EFBFBD> <20>б<EFBFBD>
/// @param   buffer  
/// @param   size  
/// @param   count  
/// @return  
/// @date    2004-10-02 <20><><EFBFBD><EFBFBD> 11:44:05
////////////////////////////////////////////////////////////////////////////////////////////////////
BOOL CUnAlz::FRead(void* buffer, UINT32 nBytesToRead, int* pTotRead )
{
	BOOL ret;
	UINT32 nNumOfBytesRead;
	INT64 dwRemain;
	UINT32 dwRead;
	UINT32 dwTotRead;

	dwRemain = nBytesToRead;
	dwTotRead = 0;
	if(pTotRead) *pTotRead=0;

	while(dwRemain)
	{
		dwRead = (UINT32)min(dwRemain, (m_files[m_nCurFile].nFileSize-m_nCurFilePos-m_files[m_nCurFile].nMultivolTailSize));
		if(dwRead==0) {
			m_bIsEOF = TRUE;return FALSE;
		}
#ifdef _WIN32
		ret = ReadFile(m_files[m_nCurFile].fp, ((BYTE*)buffer)+dwTotRead, dwRead, (DWORD*)&nNumOfBytesRead, NULL);
		if(ret==FALSE && GetLastError()==ERROR_HANDLE_EOF) 
		{
			m_bIsEOF = TRUE;return FALSE;
		}
#else
		nNumOfBytesRead = fread(((BYTE*)buffer)+dwTotRead, 1,dwRead ,m_files[m_nCurFile].fp);
		if(nNumOfBytesRead<=0) 
		{
			m_bIsEOF = TRUE;return FALSE;
		}
		ret=TRUE;
#endif
		if(dwRead!=nNumOfBytesRead)					// <20>߻<EFBFBD><DFBB>ϸ<EFBFBD> <20>ȵȴ<C8B5>..
		{
			ASSERT(0); return FALSE;
		}

		m_nVirtualFilePos += nNumOfBytesRead;	// virtual <20><><EFBFBD><EFBFBD> <20><>ġ..

		m_nCurFilePos+=nNumOfBytesRead;					// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD> <20><>ġ.
		dwRemain-=nNumOfBytesRead;
		dwTotRead+=nNumOfBytesRead;
		if(pTotRead) *pTotRead=dwTotRead;

		if(m_nCurFilePos==m_files[m_nCurFile].nFileSize-m_files[m_nCurFile].nMultivolTailSize)	// overflow
		{
			m_nCurFile++;

#ifdef _WIN32
			if(m_files[m_nCurFile].fp==INVALID_HANDLE_VALUE)
#else
			if(m_files[m_nCurFile].fp==NULL)
#endif
			{
				m_bIsEOF = TRUE;
				if(dwRemain==0) return TRUE;						// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>о<EFBFBD><D0BE><EFBFBD>..
				return FALSE;
			}

			m_nCurFilePos = m_files[m_nCurFile].nMultivolHeaderSize;					// header skip
#ifdef _WIN32
			SetFilePointer(m_files[m_nCurFile].fp, (int)m_nCurFilePos, NULL, FILE_BEGIN);
#else
			fseek(m_files[m_nCurFile].fp, m_nCurFilePos, SEEK_SET);
#endif
		}
		else
			if(m_nCurFilePos>m_files[m_nCurFile].nFileSize-m_files[m_nCurFile].nMultivolTailSize) ASSERT(0);
	}
	
	return ret;
}

////////////////////////////////////////////////////////////////////////////////////////////////////
///          error code <20><> <20><>Ʈ<EFBFBD><C6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20>ٲ<EFBFBD> <20>ش<EFBFBD>.
/// @param   nERR  
/// @return  
/// @date    2004-10-24 <20><><EFBFBD><EFBFBD> 3:28:39
////////////////////////////////////////////////////////////////////////////////////////////////////
const char* CUnAlz::LastErrToStr(ERR nERR)
{
	if(nERR>= sizeof(errorstrtable)/sizeof(errorstrtable[0])) {ASSERT(0); return NULL; }
	return errorstrtable[nERR];
}