forked from mirror/unalz
1276 lines
32 KiB
C++
1276 lines
32 KiB
C++
//#include "stdafx.h"
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#include "zlib/zlib.h"
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#include "bzip2/bzlib.h"
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#include "UnAlz.h"
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#ifdef _WIN32
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#include <direct.h> // mkdir
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#else
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#include <sys/stat.h>
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#endif
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#ifndef MAX_PATH
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#define MAX_PATH 260
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#endif
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#ifdef _WIN32
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#define PATHSEP "\\"
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#define PATHSEPC '\\'
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#else
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#define PATHSEP "/"
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#define PATHSEPC '/'
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#endif
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// ctor
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/// @date 2004-03-06 오후 11:19:49
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////////////////////////////////////////////////////////////////////////////////////////////////////
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CUnAlz::CUnAlz()
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{
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memset(m_files, 0, sizeof(m_files));
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m_nErr = ERR_NOERR;
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m_posCur = (FileList::iterator)NULL;
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m_pFuncCallBack = NULL;
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m_pCallbackParam = NULL;
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m_bHalt = FALSE;
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m_nFileCount = 0;
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m_nCurFile = -1;
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m_nVirtualFilePos = 0;
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m_nCurFilePos = 0;
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m_bIsEOF = FALSE;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// dtor
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/// @date 2004-03-06 오후 11:19:52
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////////////////////////////////////////////////////////////////////////////////////////////////////
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CUnAlz::~CUnAlz()
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{
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Close();
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// progress callback func setting
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/// @date 2004-03-01 오전 6:02:05
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////////////////////////////////////////////////////////////////////////////////////////////////////
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void CUnAlz::SetCallback(_UnAlzCallback* pFunc, void* param)
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{
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m_pFuncCallBack = pFunc;
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m_pCallbackParam = param;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// 파일 열기
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/// @param szPathName
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/// @return
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/// @date 2004-03-06 오후 11:03:59
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifdef _WIN32
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/*
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BOOL CUnAlz::Open(LPCWSTR szPathName)
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{
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USES_CONVERSION;
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return Open(W2A(szPathName));
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}
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*/
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#endif // _WIN32
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BOOL CUnAlz::Open(const char* szPathName)
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{
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if(FOpen(szPathName)==FALSE)
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{
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m_nErr = ERR_CANT_OPEN_FILE;
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return FALSE;
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}
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// file 분석시작..
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for(;;)
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{
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SIGNATURE sig;
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BOOL ret;
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if(FEof()) break;
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//int pos = ftell(m_fp);
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sig = ReadSignature();
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if(sig==SIG_EOF)
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{
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break;
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}
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if(sig==SIG_ERR)
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{
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return FALSE; // 깨진 파일..
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}
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if(sig==SIG_ALZ_FILE_HEADER) ret = ReadAlzFileHeader();
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else if(sig==SIG_LOCAL_FILE_HEADER) ret = ReadLocalFileheader();
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else if(sig==SIG_CENTRAL_DIRECTORY_STRUCTURE) ret = ReadCentralDirectoryStructure();
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else if(sig==SIG_ENDOF_CENTRAL_DIRECTORY_RECORD) ret = ReadEndofCentralDirectoryRecord();
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else
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{
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// 미구현된 signature
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ASSERT(0);
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return FALSE;
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}
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if(ret==FALSE)
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{
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return FALSE;
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}
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if(FEof()) break;
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}
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return TRUE;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// 파일 닫기..
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/// @return
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/// @date 2004-03-06 오후 11:04:21
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////////////////////////////////////////////////////////////////////////////////////////////////////
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void CUnAlz::Close()
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{
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FClose();
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// 목록 날리기..
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FileList::iterator i;
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for(i=m_fileList.begin(); i<m_fileList.end(); i++)
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{
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i->Clear();
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}
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m_posCur = (FileList::iterator)NULL;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// FILE 내의 SIGNATURE 읽기
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/// @return
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/// @date 2004-03-06 오후 11:04:47
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////////////////////////////////////////////////////////////////////////////////////////////////////
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CUnAlz::SIGNATURE CUnAlz::ReadSignature()
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{
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DWORD dwSig;
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if(FRead(&dwSig, sizeof(dwSig))==FALSE)
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{
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//int pos = ftell(m_fp);
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if(FEof())
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return SIG_EOF;
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m_nErr = ERR_CANT_READ_SIG;
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return SIG_ERR;
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}
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return (SIGNATURE)dwSig;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// ALZ HEADER SIGNATURE 읽기
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/// @return
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/// @date 2004-03-06 오후 11:05:11
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////////////////////////////////////////////////////////////////////////////////////////////////////
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BOOL CUnAlz::ReadAlzFileHeader()
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{
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SAlzHeader header;
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if(FRead(&header, sizeof(header))==FALSE)
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{
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ASSERT(0);
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m_nErr = ERR_CANT_READ_FILE;
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return FALSE;
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}
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return TRUE;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// 각각의 파일 헤더 읽기
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/// @return
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/// @date 2004-03-06 오후 11:05:18
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////////////////////////////////////////////////////////////////////////////////////////////////////
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BOOL CUnAlz::ReadLocalFileheader()
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{
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SLocalFileHeader zipHeader;
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int ret;
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ret = FRead(&(zipHeader.head), sizeof(zipHeader.head));
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if(ret==FALSE)
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{
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m_nErr = ERR_AT_READ_HEADER;
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return FALSE;
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}
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// ALZ 확장..
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int byteLen = zipHeader.head.fileSizeByte/0x10;
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if(byteLen)
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{
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FRead(&(zipHeader.compressionMethod), sizeof(zipHeader.compressionMethod));
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FRead(&(zipHeader.unknown3), sizeof(zipHeader.unknown3));
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FRead(&(zipHeader.maybeCRC), sizeof(zipHeader.maybeCRC));
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FRead(&(zipHeader.compressedSize), byteLen);
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FRead(&(zipHeader.uncompressedSize), byteLen); // 압축 사이즈가 없다.
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}
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// FILE NAME
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zipHeader.fileName = (char*)malloc(zipHeader.head.fileNameLength+1);
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if(zipHeader.fileName==NULL)
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{
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m_nErr = ERR_INVALID_FILENAME_LENGTH;
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return FALSE;
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}
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FRead(zipHeader.fileName, zipHeader.head.fileNameLength);
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zipHeader.fileName[zipHeader.head.fileNameLength] = (CHAR)NULL;
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/*
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// EXTRA FIELD LENGTH
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if(zipHeader.head.extraFieldLength)
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{
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zipHeader.extraField = (BYTE*)malloc(zipHeader.head.extraFieldLength);
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if(zipHeader.extraField==NULL)
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{
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m_nErr = ERR_INVALID_EXTRAFIELD_LENGTH;
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return FALSE;
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}
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FRead(zipHeader.extraField, 1, zipHeader.head.extraFieldLength);
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}
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*/
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// SKIP FILE DATA
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zipHeader.dwFileDataPos = FTell(); // data 의 위치 저장하기..
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FSeek(FTell()+zipHeader.compressedSize);
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// DATA DESCRIPTOR
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/*
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if(zipHeader.head.generalPurposeBitFlag.bit1)
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{
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FRead(zipHeader.extraField, 1, sizeof(zipHeader.extraField),);
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}
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*/
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#ifdef _DEBUG
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printf("NAME:%s COMPRESSED SIZE:%d UNCOMPRESSED SIZE:%d COMP METHOD:%d\n",
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zipHeader.fileName,
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zipHeader.compressedSize,
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zipHeader.uncompressedSize,
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zipHeader.compressionMethod
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);
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#endif
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// 파일을 목록에 추가한다..
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m_fileList.push_back(zipHeader);
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return TRUE;
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}
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BOOL CUnAlz::ReadCentralDirectoryStructure()
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{
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SCentralDirectoryStructure header;
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if(FRead(&header, sizeof(header.head))==FALSE)
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{
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m_nErr = ERR_CANT_READ_CENTRAL_DIRECTORY_STRUCTURE_HEAD;
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return FALSE;
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}
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/*
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// read file name
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if(header.head.fileNameLength)
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{
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header.fileName = (char*)malloc(header.head.fileNameLength+1);
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if(header.fileName==NULL)
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{
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m_nErr = ERR_INVALID_FILENAME_SIZE;
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return FALSE;
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}
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FRead(header.fileName, 1, header.head.fileNameLength, m_fp);
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header.fileName[header.head.fileNameLength] = NULL;
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}
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// extra field;
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if(header.head.extraFieldLength)
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{
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header.extraField = (BYTE*)malloc(header.head.extraFieldLength);
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if(header.extraField==NULL)
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{
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m_nErr = ERR_INVALID_EXTRAFIELD_SIZE;
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return FALSE;
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}
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FRead(header.extraField, 1, header.head.extraFieldLength, m_fp);
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}
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// file comment;
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if(header.head.fileCommentLength)
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{
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header.fileComment = (char*)malloc(header.head.fileCommentLength+1);
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if(header.fileComment==NULL)
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{
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m_nErr = ERR_INVALID_FILECOMMENT_SIZE;
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return FALSE;
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}
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FRead(header.fileComment, 1, header.head.fileCommentLength, m_fp);
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header.fileComment[header.head.fileCommentLength] = NULL;
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}
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*/
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return TRUE;
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}
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BOOL CUnAlz::ReadEndofCentralDirectoryRecord()
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{
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/*
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SEndOfCentralDirectoryRecord header;
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if(FRead(&header, sizeof(header.head), 1, m_fp)!=1)
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{
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m_nErr = ERR_CANT_READ_HEADER;
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return FALSE;
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}
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if(header.head.zipFileCommentLength)
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{
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header.fileComment = (char*)malloc(header.head.zipFileCommentLength+1);
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if(header.fileComment==NULL)
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{
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m_nErr = ERR_INVALID_FILECOMMENT_SIZE;
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return FALSE;
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}
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FRead(header.fileComment, 1, header.head.zipFileCommentLength, m_fp);
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header.fileComment[header.head.zipFileCommentLength] = NULL;
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}
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*/
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return TRUE;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// 대상 파일 세팅하기.
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/// @param szFileName
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/// @return
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/// @date 2004-03-06 오후 11:06:20
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////////////////////////////////////////////////////////////////////////////////////////////////////
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#ifdef _WIN32
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/*
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BOOL CUnAlz::SetCurrentFile(LPCWSTR szFileName)
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{
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USES_CONVERSION;
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return SetCurrentFile(W2A(szFileName));
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}
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*/
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#endif // _WIN32
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BOOL CUnAlz::SetCurrentFile(const char* szFileName)
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{
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FileList::iterator i;
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// 순차적으로 찾는다.
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for(i=m_fileList.begin(); i<m_fileList.end(); i++)
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{
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#ifdef _WIN32
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if(stricmp(i->fileName, szFileName)==0)
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#else
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if(strcmp(i->fileName, szFileName)==0)
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#endif
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{
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m_posCur = i;
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return TRUE;
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}
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}
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m_posCur = (FileList::iterator)NULL;
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return FALSE;
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}
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#ifndef MAX_WBITS
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# define MAX_WBITS 15 /* 32K LZ77 window */
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#endif
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// 버퍼에 압축 풀기. 버퍼는 당근 충분한 크기가 준비되어 있어야 한다.
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/// @param pDestBuf
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/// @return
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/// @date 2004-03-07 오전 12:26:13
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////////////////////////////////////////////////////////////////////////////////////////////////////
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BOOL CUnAlz::ExtractCurrentFileToBuf(BYTE* pDestBuf, int nBufSize)
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{
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SExtractDest dest;
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dest.nType = ET_MEM;
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dest.buf = pDestBuf;
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dest.bufpos = 0;
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dest.bufsize = nBufSize;
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return ExtractTo(&dest);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// 현재 파일 (SetCurrentFile로 지)을 대상 경로에 대상 파일로 푼다.
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/// @param szDestPathName - 대상 경로
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/// @param szDestFileName - 대상 파일명, NULL 이면 원래 파일명 사용
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/// @return
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/// @date 2004-03-06 오후 11:06:59
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////////////////////////////////////////////////////////////////////////////////////////////////////
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BOOL CUnAlz::ExtractCurrentFile(const char* szDestPathName, const char* szDestFileName)
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{
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if(m_posCur==(FileList::iterator)NULL) {ASSERT(0); return FALSE;}
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BOOL ret=FALSE;
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SExtractDest dest;
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char szDestPathFileName[MAX_PATH];
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// 경로명
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strcpy(szDestPathFileName, szDestPathName);
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if(szDestPathFileName[strlen(szDestPathFileName)]!=PATHSEPC)
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strcat(szDestPathFileName, PATHSEP);
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// 파일명
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if(szDestFileName) strcat(szDestPathFileName, szDestFileName);
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else strcat(szDestPathFileName, m_posCur->fileName);
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// 압축풀 대상 ( 파일 )
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dest.nType = ET_FILE;
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dest.fp = fopen(szDestPathFileName, "wb");
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if(dest.fp==NULL)
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{
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DigPath(szDestPathFileName); // 경로명에 / 가 있을 경우..
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dest.fp = fopen(szDestPathFileName, "wb");
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}
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if(dest.fp==NULL)
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{
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ASSERT(0);
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if(m_pFuncCallBack)
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{
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CHAR buf[1024];
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sprintf(buf, "파일 열기 실패 : %s", szDestPathFileName);
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m_pFuncCallBack(buf, 0,0,m_pCallbackParam, NULL);
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}
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return FALSE;
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}
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// CALLBACK 세팅
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if(m_pFuncCallBack) m_pFuncCallBack(m_posCur->fileName, 0,0,m_pCallbackParam, NULL);
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ret = ExtractTo(&dest);
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fclose(dest.fp);
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return ret;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// 대상에 압축 풀기..
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/// @param dest
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/// @return
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/// @date 2004-03-07 오전 12:44:36
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////////////////////////////////////////////////////////////////////////////////////////////////////
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BOOL CUnAlz::ExtractTo(SExtractDest* dest)
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{
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BOOL ret = FALSE;
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// 압축 방법에 따라서 압축 풀기
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if(m_posCur->compressionMethod==COMP_NOCOMP)
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{
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ret = ExtractRawfile(dest, *m_posCur);
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}
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else if(m_posCur->compressionMethod==COMP_BZIP2)
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{
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ret = ExtractBzip2(dest, *m_posCur); // bzip2
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}
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else if(m_posCur->compressionMethod==COMP_DEFLATE)
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{
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ret = ExtractDeflate2(dest, *m_posCur); // deflate
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}
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else
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{
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ASSERT(0); // 새로운 방법 ???
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ret = FALSE;
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}
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return ret;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/// DEFLATE 로 풀기 - 테스트용 함수. 모든 파일을 한꺼번에 읽어서 푼다. 실제 사용 안함.
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/// @param fp - 대상 파일
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/// @param file - 소스 파일 정보
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/// @return
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/// @date 2004-03-06 오후 11:09:17
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////////////////////////////////////////////////////////////////////////////////////////////////////
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/*
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BOOL CUnAlz::ExtractDeflate(FILE* fp, SLocalFileHeader& file)
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{
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z_stream stream;
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BYTE* pInBuf=NULL;
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BYTE* pOutBuf=NULL;
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int nInBufSize = file.compressedSize;
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int nOutBufSize = file.uncompressedSize;
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int err;
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int flush=Z_SYNC_FLUSH;
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BOOL ret = FALSE;
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memset(&stream, 0, sizeof(stream));
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pInBuf = (BYTE*)malloc(nInBufSize);
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if(pInBuf==NULL)
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{
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m_nErr = ERR_MEM_ALLOC_FAILED;
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goto END;
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}
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pOutBuf = (BYTE*)malloc(nOutBufSize);
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if(pOutBuf==NULL)
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{
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m_nErr = ERR_MEM_ALLOC_FAILED;
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goto END;
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}
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|
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// 한번에 읽어서
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fseek(m_fp, file.dwFileDataPos, SEEK_SET);
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if(FRead(pInBuf, nInBufSize, 1, m_fp)!=1)
|
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{
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m_nErr = ERR_FILE_READ_ERROR;
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goto END;
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}
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|
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// 초기화..
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inflateInit2(&stream, -MAX_WBITS);
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|
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stream.next_out = pOutBuf;
|
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stream.avail_out = nOutBufSize;
|
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stream.next_in = pInBuf;
|
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stream.avail_in = nInBufSize;
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|
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err = inflate(&stream, flush);
|
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|
|
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;
|
|
}
|
|
*/
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// 대상 폴더에 현재 압축파일을 전부 풀기
|
|
/// @param szDestPathName - 대상 경로
|
|
/// @return
|
|
/// @date 2004-03-06 오후 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; // 멈추기..
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// 대상 경로 파기 - 압축 파일 내에 폴더 정보가 있을 경우, 다중 폴더를 판다(dig)
|
|
/// @param szPathName
|
|
/// @return
|
|
/// @date 2004-03-06 오후 11:10:12
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
BOOL CUnAlz::DigPath(const char* szPathName)
|
|
{
|
|
char* dup = strdup(szPathName);
|
|
char seps[] = "/\\";
|
|
char *token;
|
|
char path[MAX_PATH] = {0};
|
|
char* last;
|
|
|
|
// 경로만 뽑기.
|
|
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
|
|
//printf("mkdir:%s\n", path);
|
|
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;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// 제대로된 폴더 인가?
|
|
/// @param szPathName
|
|
/// @return
|
|
/// @date 2004-03-06 오후 11:03:26
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
BOOL CUnAlz::IsFolder(LPCSTR szPathName)
|
|
{
|
|
#ifdef _WIN32
|
|
DWORD 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
|
|
}
|
|
#ifdef _WIN32
|
|
/*
|
|
BOOL CUnAlz::IsFolder(LPCWSTR szPathName)
|
|
{
|
|
DWORD dwRet;
|
|
dwRet = GetFileAttributesW(szPathName);
|
|
if(dwRet==0xffffffff) return FALSE;
|
|
if(dwRet & FILE_ATTRIBUTE_DIRECTORY) return TRUE;
|
|
return FALSE;
|
|
}
|
|
*/
|
|
#endif // _WIN32
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// 압축을 풀 대상에 압축을 푼다.
|
|
/// @param dest - 대상 OBJECT
|
|
/// @param buf - 풀린 데이타
|
|
/// @param nSize - 데이타의 크기
|
|
/// @return 쓴 바이트수. 에러시 -1 리턴
|
|
/// @date 2004-03-07 오전 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) // 에러.. 버퍼가 넘쳤다.
|
|
{
|
|
ASSERT(0);
|
|
return -1;
|
|
}
|
|
// memcpy
|
|
memcpy(dest->buf + dest->bufpos, buf, nSize);
|
|
dest->bufpos += nSize;
|
|
return nSize;
|
|
}
|
|
else
|
|
{
|
|
ASSERT(0);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
/* 실패한 방법.. 고생한게 아까워서 못지움.
|
|
#define ALZDLZ_HEADER_SIZE 4 // alz 파일의 bzip2 헤더 크기
|
|
#define BZIP2_HEADER_SIZE 10 // bzip 파일의 헤더 크기
|
|
#define BZIP2_CRC_SIZE 4 // bzip2 의 crc
|
|
#define BZIP2_TAIL_SIZE 10 // 대충 4+5 정도.?
|
|
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;
|
|
DWORD 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 의 BZIP 헤더 ("DLZ.") 스킵하기.
|
|
fseek(m_fp, ALZDLZ_HEADER_SIZE, SEEK_CUR);
|
|
// BZIP2 헤더 삽입
|
|
memcpy(pInBuf, bzip2Header, BZIP2_HEADER_SIZE);
|
|
// BZIP2 CRC
|
|
memcpy(pInBuf+BZIP2_HEADER_SIZE, &(crc), BZIP2_CRC_SIZE);
|
|
|
|
// 진짜 압축된 데이타를 한번에 읽어서
|
|
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;
|
|
}
|
|
|
|
|
|
// 초기화..
|
|
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 가 리턴될 수 있다..
|
|
//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 로 압축된 파일 풀기
|
|
/// @param fp - 대상 파일
|
|
/// @param file - 소스 파일
|
|
/// @return
|
|
/// @date 2004-03-06 오후 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;
|
|
|
|
// 위치 잡고.
|
|
FSeek(file.dwFileDataPos);
|
|
|
|
sizeToRead = file.compressedSize; // 읽을 크기.
|
|
|
|
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 압축 풀기..
|
|
/// @param fp_w - 대상 파일
|
|
/// @param file - 소스 파일 정보
|
|
/// @return
|
|
/// @date 2004-03-01 오전 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* 를 사용할경우 사용하던 코드. - 멀티 볼륨 지원 안함..
|
|
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 로 압축 풀기. ExtractDeflate() 와 달리 조금씩 읽어서 푼다.
|
|
/// @param fp
|
|
/// @param file
|
|
/// @return
|
|
/// @date 2004-03-06 오후 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;
|
|
DWORD 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;
|
|
|
|
// 출력 부분.
|
|
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; // 읽을 크기.
|
|
|
|
if (uReadThis == 0)
|
|
break; // 중지
|
|
|
|
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 에 쓰기.
|
|
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;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// 파일 열기
|
|
/// @param szPathName
|
|
/// @return
|
|
/// @date 2004-10-02 오후 11:47:14
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
BOOL CUnAlz::FOpen(const char* szPathName)
|
|
{
|
|
char* temp = strdup(szPathName); // 파일명 복사..
|
|
int i;
|
|
int nLen = strlen(szPathName);
|
|
DWORD dwFileSizeLow,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 파일명을 가지고 aa.a00 aa.a01 aa.a02 .. 만들기
|
|
{
|
|
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;
|
|
dwFileSizeLow = GetFileSize(m_files[i].fp, &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);
|
|
dwFileSizeLow=ftell(m_files[i].fp);
|
|
fseek(m_files[i].fp,0,SEEK_SET);
|
|
#endif
|
|
m_nFileCount++;
|
|
m_files[i].nFileSize = ((INT64)dwFileSizeLow) + (((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; // 마지막 파일은 꼴랑지가 없다..
|
|
return TRUE;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// 파일 닫기
|
|
/// @return
|
|
/// @date 2004-10-02 오후 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;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// 파일의 끝인가?
|
|
/// @return
|
|
/// @date 2004-10-02 오후 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;
|
|
*/
|
|
}
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// 현재 파일 위치
|
|
/// @return
|
|
/// @date 2004-10-02 오후 11:50:50
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
INT64 CUnAlz::FTell()
|
|
{
|
|
return m_nVirtualFilePos; // return ftell(m_fp);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// 파일 위치 세팅
|
|
/// @param offset
|
|
/// @param origin
|
|
/// @return
|
|
/// @date 2004-10-02 오후 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++) // 앞에서 루프를 돌면서 위치 선정하기..
|
|
{
|
|
if(remain<=m_files[i].nFileSize-m_files[i].nMultivolHeaderSize-m_files[i].nMultivolTailSize)
|
|
{
|
|
m_nCurFile = i;
|
|
m_nCurFilePos = remain+m_files[i].nMultivolHeaderSize; // 물리적 위치.
|
|
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);
|
|
}
|
|
|
|
// 실패..?
|
|
ASSERT(0);
|
|
return FALSE;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
/// 파일 읽기
|
|
/// @param buffer
|
|
/// @param size
|
|
/// @param count
|
|
/// @return
|
|
/// @date 2004-10-02 오후 11:44:05
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
BOOL CUnAlz::FRead(void* buffer, DWORD nBytesToRead, int* pTotRead )
|
|
{
|
|
BOOL ret;
|
|
DWORD nNumOfBytesRead;
|
|
INT64 dwRemain;
|
|
DWORD dwRead;
|
|
DWORD dwTotRead;
|
|
|
|
dwRemain = nBytesToRead;
|
|
dwTotRead = 0;
|
|
if(pTotRead) *pTotRead=0;
|
|
|
|
while(dwRemain)
|
|
{
|
|
dwRead = (DWORD)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, &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) // 발생하면 안된다..
|
|
{
|
|
ASSERT(0); return FALSE;
|
|
}
|
|
|
|
m_nVirtualFilePos += nNumOfBytesRead; // virtual 파일 위치..
|
|
|
|
m_nCurFilePos+=nNumOfBytesRead; // 물리적 파일 위치.
|
|
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; // 완전히 끝까지 읽었다..
|
|
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;
|
|
}
|
|
|