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85 lines
1.9 KiB
C++
Executable File
85 lines
1.9 KiB
C++
Executable File
// Archive/ZipIn.h
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#pragma once
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#ifndef __ZIP_IN_H
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#define __ZIP_IN_H
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#include "Common/MyCom.h"
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#include "../../IStream.h"
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#include "ZipHeader.h"
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#include "ZipItemEx.h"
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namespace NArchive {
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namespace NZip {
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class CInArchiveException
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{
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public:
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enum CCauseType
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{
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kUnexpectedEndOfArchive = 0,
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kArchiceHeaderCRCError,
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kFileHeaderCRCError,
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kIncorrectArchive,
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kDataDescroptorsAreNotSupported,
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kMultiVolumeArchiveAreNotSupported,
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kReadStreamError,
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kSeekStreamError
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}
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Cause;
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CInArchiveException(CCauseType cause): Cause(cause) {}
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};
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class CInArchiveInfo
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{
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public:
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UINT64 StartPosition;
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UINT64 CommentPosition;
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UINT16 CommentSize;
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bool IsCommented() const { return (CommentSize != 0); };
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};
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class CProgressVirt
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{
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public:
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STDMETHOD(SetCompleted)(const UINT64 *numFiles) PURE;
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};
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class CInArchive
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{
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CMyComPtr<IInStream> m_Stream;
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UINT32 m_Signature;
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UINT64 m_StreamStartPosition;
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UINT64 m_Position;
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CInArchiveInfo m_ArchiveInfo;
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AString m_NameBuffer;
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bool FindAndReadMarker(const UINT64 *searchHeaderSizeLimit);
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bool ReadSignature(UINT32 &signature);
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AString ReadFileName(UINT32 nameSize);
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HRESULT ReadBytes(void *data, UINT32 size, UINT32 *processedSize);
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bool ReadBytesAndTestSize(void *data, UINT32 size);
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void SafeReadBytes(void *data, UINT32 size);
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void IncreasePositionValue(UINT64 addValue);
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void IncreaseRealPosition(UINT64 addValue);
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void ThrowIncorrectArchiveException();
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public:
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HRESULT ReadHeaders(CObjectVector<CItemEx> &items, CProgressVirt *progress);
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bool Open(IInStream *inStream, const UINT64 *searchHeaderSizeLimit);
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void Close();
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void GetArchiveInfo(CInArchiveInfo &archiveInfo) const;
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void DirectGetBytes(void *data, UINT32 num);
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bool SeekInArchive(UINT64 position);
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ISequentialInStream *CreateLimitedStream(UINT64 position, UINT64 size);
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IInStream* CreateStream();
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};
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}}
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#endif
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