mirror of
https://github.com/rbmm/SC
synced 2026-06-08 17:03:41 +00:00
rbmm
55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
#include "stdafx.h"
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#include "zip.h"
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ULONG BOOL_TO_ERROR(BOOL f)
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{
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return f ? NOERROR : GetLastError();
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}
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HRESULT Unzip(_In_ LPCVOID CompressedData,
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_In_ ULONG CompressedDataSize,
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_Out_ PVOID* pUncompressedBuffer,
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_Out_ ULONG* pUncompressedDataSize)
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{
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ULONG dwError;
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COMPRESSOR_HANDLE DecompressorHandle;
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if (NOERROR == (dwError = BOOL_TO_ERROR(CreateDecompressor(COMPRESS_ALGORITHM_MSZIP, 0, &DecompressorHandle))))
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{
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SIZE_T UncompressedBufferSize = 0;
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PVOID UncompressedBuffer = 0;
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while (ERROR_INSUFFICIENT_BUFFER == (dwError = BOOL_TO_ERROR(Decompress(
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DecompressorHandle, CompressedData, CompressedDataSize,
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UncompressedBuffer, UncompressedBufferSize, &UncompressedBufferSize))) && !UncompressedBuffer)
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{
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if (!(UncompressedBuffer = LocalAlloc(LMEM_FIXED, UncompressedBufferSize)))
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{
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dwError = ERROR_OUTOFMEMORY;
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break;
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}
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}
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if (NOERROR == dwError)
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{
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if (UncompressedBuffer)
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{
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*pUncompressedDataSize = (ULONG)UncompressedBufferSize;
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*pUncompressedBuffer = UncompressedBuffer, UncompressedBuffer = 0;
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}
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else
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{
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dwError = ERROR_INTERNAL_ERROR;
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}
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}
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if (UncompressedBuffer)
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{
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LocalFree(UncompressedBuffer);
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}
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CloseDecompressor(DecompressorHandle);
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}
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return HRESULT_FROM_WIN32(dwError);
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} |