45 lines
996 B
C++
45 lines
996 B
C++
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#define MAXOVERFLOWBYTES 16
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class CINetCodeConverter
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{
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public:
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CINetCodeConverter();
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~CINetCodeConverter() {}
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HRESULT GetStringSizeA(BYTE const* pbySource, long lSourceSize, long* plDestSize);
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HRESULT ConvertStringA(BYTE const* pbySource, long lSourceSize, BYTE* pbyDest, long lDestSize, long* lConvertedSize = NULL);
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private:
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BOOL fOutputMode;
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BYTE* pbyOutput;
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long lOutputLimit;
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long lNumOutputBytes;
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int nNumOverflowBytes;
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BYTE OverflowBuffer[MAXOVERFLOWBYTES];
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HRESULT WalkString(BYTE const* pbySource, long lSourceSize, long* lConvertedSize);
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HRESULT EndOfDest(BYTE by);
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HRESULT OutputOverflowBuffer();
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protected:
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virtual HRESULT ConvertByte(BYTE by) = 0;
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virtual HRESULT CleanUp() {return S_OK;}
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protected:
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inline HRESULT Output(BYTE by)
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{
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HRESULT hr = S_OK;
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if (fOutputMode) {
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if (lNumOutputBytes < lOutputLimit)
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*pbyOutput++ = by;
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else
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hr = EndOfDest(by);
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}
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lNumOutputBytes++;
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return hr;
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}
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};
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