148 lines
4.2 KiB
C++
148 lines
4.2 KiB
C++
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1996 - 1999
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// File: cBFile.cpp
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// Contents: Microsoft Internet Security Certificate Class
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// History: 24-Oct-1997 pberkman created
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#ifndef CBFILE_HXX
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#define CBFILE_HXX
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#pragma pack(8)
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#define BFILE_VERSION_1 0x0001
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typedef struct BFILE_HEADER_
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{
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DWORD fDirty : 1;
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DWORD sVersion : 16;
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DWORD dwFiller1 : 15;
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DWORD sIntVersion : 16;
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DWORD dwFiller2 : 16;
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DWORD cbSortedEOF;
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DWORD cbKey;
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DWORD cbData;
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DWORD dwLastRecNum;
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DWORD dwFiller3;
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} BFILE_HEADER;
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typedef struct BFILE_RECORD_
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{
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DWORD dwRecNum;
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DWORD cbKey;
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void *pvKey;
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DWORD cbDataOffset;
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DWORD cbData;
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void *pvData;
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DWORD fDeleted : 1;
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DWORD dwFiller1 : 31;
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} BFILE_RECORD;
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#ifdef _WIN64
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#define BFILE_SIZEOFSIG 8
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#else
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#define BFILE_SIZEOFSIG 6
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#endif
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#define BFILE_SIG "CBFILE"
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#define BFILE_KEYEXT L".cbk"
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#define BFILE_DATAEXT L".cbd"
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#define BFILE_HEADERSIZE (sizeof(BFILE_HEADER) + BFILE_SIZEOFSIG)
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#define BFILE_KEYSIZE (sHeader.cbKey + sizeof(DWORD))
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#define BFILE_RECSIZE (sizeof(DWORD) + sHeader.cbData)
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#pragma pack()
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class cBFile_
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{
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public:
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cBFile_(CRITICAL_SECTION *pCriticalSection,
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WCHAR *pwszBFilePath, WCHAR *pwszBFileBaseName,
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DWORD cbKey, DWORD cbData, SHORT sVersion, BOOL *pfCreatedOK);
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virtual ~cBFile_(void);
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BOOL Initialize(void);
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void setKey(void *pvInKey);
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void setData(void *pvInData);
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DWORD KeySize(void) { return(sHeader.cbKey); }
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void *getKey(void) { return(sRecord.pvKey); }
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void *getData(void) { return(sRecord.pvData); }
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DWORD getRecNum(void) { return(sRecord.dwRecNum); }
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DWORD getKeyNum(void) { return(dwFirstNextRecNum); }
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DWORD getVersion(void) { return(sHeader.sVersion); }
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void UseRecNumAsKey(BOOL fUse) { fUseRecNumAsKey = fUse; }
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BOOL Find(void);
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BOOL Update(void);
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BOOL Add(void);
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void Sort(void);
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BOOL GetFirst(void);
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BOOL GetNext(DWORD dwCurRec = 0xffffffff);
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BOOL GetPrev(DWORD dwCurRec = 0xffffffff);
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DWORD GetNumKeys(void);
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BOOL GetHeader(BFILE_HEADER *psHeader);
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void *GetDumpKey(DWORD dwIdx, void *pvRetKey, DWORD *pdwRecOffset);
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protected:
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BOOL BinaryFind(DWORD *pcbDataOffset);
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BOOL GetDataRecord(DWORD cbDataOffset);
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void UpdateDataRecord(DWORD cbDataOffset);
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void AddDirtyKey(void);
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DWORD AddDataRecord(void);
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BOOL UpdateHeader(void);
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void ReadHeader(void);
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private:
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CRITICAL_SECTION *pCritical;
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BOOL fInitialized;
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BOOL fReadOnly;
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BOOL fDirty;
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BOOL fUseRecNumAsKey;
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BFILE_HEADER sHeader;
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BFILE_RECORD sRecord;
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HANDLE hKFile;
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HANDLE hDFile;
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BYTE *pbKMap;
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DWORD cbKMap;
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BYTE *pbDMap;
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DWORD cbDMap;
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HANDLE hDMutex;
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WCHAR *pwszPath;
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WCHAR *pwszBaseName;
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DWORD dwFirstNextRecNum;
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BOOL OpenFiles(void);
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BOOL Lock(void);
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BOOL Unlock(void);
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BOOL RemapKey(void);
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BOOL RemapData(void);
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void UnmapAll(void);
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void SpeedSort(void);
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DWORD GetInsertionPoint(void *pvIn);
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};
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#endif // CBFILE_HXX
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