mirror of
https://github.com/Xevion/easy7zip.git
synced 2025-12-14 10:11:38 -06:00
Normalize all the line endings
This commit is contained in:
Tino Reichardt
@@ -1,427 +1,427 @@
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// Archive/ZipIn.h
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#ifndef __ZIP_IN_H
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#define __ZIP_IN_H
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#include "../../../Common/MyBuffer2.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 "ZipItem.h"
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API_FUNC_IsArc IsArc_Zip(const Byte *p, size_t size);
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namespace NArchive {
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namespace NZip {
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class CItemEx: public CItem
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{
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public:
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UInt32 LocalFullHeaderSize; // including Name and Extra
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// int ParentOfAltStream; // -1, if not AltStream
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bool DescriptorWasRead;
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CItemEx():
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// ParentOfAltStream(-1),
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DescriptorWasRead(false) {}
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UInt64 GetLocalFullSize() const
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{ return LocalFullHeaderSize + GetPackSizeWithDescriptor(); }
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UInt64 GetDataPosition() const
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{ return LocalHeaderPos + LocalFullHeaderSize; }
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};
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struct CInArchiveInfo
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{
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Int64 Base; /* Base offset of start of archive in stream.
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Offsets in headers must be calculated from that Base.
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Base is equal to MarkerPos for normal ZIPs.
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Base can point to PE stub for some ZIP SFXs.
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if CentralDir was read,
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Base can be negative, if start of data is not available,
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if CentralDirs was not read,
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Base = ArcInfo.MarkerPos; */
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/* The following *Pos variables contain absolute offsets in Stream */
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UInt64 MarkerPos; /* Pos of first signature, it can point to kSpan/kNoSpan signature
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= MarkerPos2 in most archives
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= MarkerPos2 - 4 if there is kSpan/kNoSpan signature */
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UInt64 MarkerPos2; // Pos of first local item signature in stream
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UInt64 FinishPos; // Finish pos of archive data in starting volume
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UInt64 FileEndPos; // Finish pos of stream
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UInt64 FirstItemRelatOffset; /* Relative offset of first local (read from cd) (relative to Base).
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= 0 in most archives
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= size of stub for some SFXs */
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int MarkerVolIndex;
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bool CdWasRead;
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bool IsSpanMode;
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bool ThereIsTail;
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// UInt32 BaseVolIndex;
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CByteBuffer Comment;
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CInArchiveInfo():
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Base(0),
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MarkerPos(0),
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MarkerPos2(0),
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FinishPos(0),
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FileEndPos(0),
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FirstItemRelatOffset(0),
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MarkerVolIndex(-1),
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CdWasRead(false),
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IsSpanMode(false),
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ThereIsTail(false)
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// BaseVolIndex(0)
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{}
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void Clear()
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{
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// BaseVolIndex = 0;
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Base = 0;
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MarkerPos = 0;
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MarkerPos2 = 0;
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FinishPos = 0;
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FileEndPos = 0;
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MarkerVolIndex = -1;
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ThereIsTail = false;
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FirstItemRelatOffset = 0;
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CdWasRead = false;
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IsSpanMode = false;
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Comment.Free();
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}
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};
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struct CCdInfo
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{
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bool IsFromEcd64;
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UInt16 CommentSize;
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// 64
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UInt16 VersionMade;
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UInt16 VersionNeedExtract;
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// old zip
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UInt32 ThisDisk;
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UInt32 CdDisk;
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UInt64 NumEntries_in_ThisDisk;
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UInt64 NumEntries;
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UInt64 Size;
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UInt64 Offset;
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CCdInfo() { memset(this, 0, sizeof(*this)); IsFromEcd64 = false; }
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void ParseEcd32(const Byte *p); // (p) includes signature
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void ParseEcd64e(const Byte *p); // (p) exclude signature
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bool IsEmptyArc() const
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{
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return ThisDisk == 0
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&& CdDisk == 0
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&& NumEntries_in_ThisDisk == 0
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&& NumEntries == 0
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&& Size == 0
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&& Offset == 0 // test it
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;
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}
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};
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struct CVols
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{
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struct CSubStreamInfo
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{
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CMyComPtr<IInStream> Stream;
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UInt64 Size;
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HRESULT SeekToStart() const { return Stream->Seek(0, STREAM_SEEK_SET, NULL); }
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CSubStreamInfo(): Size(0) {}
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};
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CObjectVector<CSubStreamInfo> Streams;
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int StreamIndex; // -1 for StartStream
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// -2 for ZipStream at multivol detection code
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// >=0 volume index in multivol
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bool NeedSeek;
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bool DisableVolsSearch;
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bool StartIsExe; // is .exe
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bool StartIsZ; // is .zip or .zNN
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bool StartIsZip; // is .zip
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bool IsUpperCase;
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bool MissingZip;
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bool ecd_wasRead;
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Int32 StartVolIndex; // -1, if unknown vol index
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// = (NN - 1), if StartStream is .zNN
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// = 0, if start vol is exe
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Int32 StartParsingVol; // if we need local parsing, we must use that stream
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unsigned NumVols;
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int EndVolIndex; // index of last volume (ecd volume),
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// -1, if is not multivol
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UString BaseName; // name of archive including '.'
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UString MissingName;
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CMyComPtr<IInStream> ZipStream;
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CCdInfo ecd;
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UInt64 TotalBytesSize; // for MultiVol only
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void ClearRefs()
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{
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Streams.Clear();
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ZipStream.Release();
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TotalBytesSize = 0;
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}
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void Clear()
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{
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StreamIndex = -1;
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NeedSeek = false;
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DisableVolsSearch = false;
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StartIsExe = false;
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StartIsZ = false;
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StartIsZip = false;
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IsUpperCase = false;
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StartVolIndex = -1;
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StartParsingVol = 0;
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NumVols = 0;
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EndVolIndex = -1;
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BaseName.Empty();
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MissingName.Empty();
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MissingZip = false;
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ecd_wasRead = false;
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ClearRefs();
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}
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HRESULT ParseArcName(IArchiveOpenVolumeCallback *volCallback);
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HRESULT Read(void *data, UInt32 size, UInt32 *processedSize);
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};
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class CVolStream:
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public ISequentialInStream,
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public CMyUnknownImp
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{
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public:
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CVols *Vols;
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MY_UNKNOWN_IMP1(ISequentialInStream)
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STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
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};
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class CInArchive
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{
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CMidBuffer Buffer;
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size_t _bufPos;
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size_t _bufCached;
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UInt64 _streamPos;
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UInt64 _cnt;
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// UInt32 _startLocalFromCd_Disk;
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// UInt64 _startLocalFromCd_Offset;
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size_t GetAvail() const { return _bufCached - _bufPos; }
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void InitBuf() { _bufPos = 0; _bufCached = 0; }
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void DisableBufMode() { InitBuf(); _inBufMode = false; }
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void SkipLookahed(size_t skip)
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{
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_bufPos += skip;
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_cnt += skip;
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}
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UInt64 GetVirtStreamPos() { return _streamPos - _bufCached + _bufPos; }
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bool _inBufMode;
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bool IsArcOpen;
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bool CanStartNewVol;
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UInt32 _signature;
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CMyComPtr<IInStream> StreamRef;
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IInStream *Stream;
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IInStream *StartStream;
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IArchiveOpenCallback *Callback;
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HRESULT Seek_SavePos(UInt64 offset);
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HRESULT SeekToVol(int volIndex, UInt64 offset);
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HRESULT ReadFromCache(Byte *data, unsigned size, unsigned &processed);
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HRESULT ReadVols2(IArchiveOpenVolumeCallback *volCallback,
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unsigned start, int lastDisk, int zipDisk, unsigned numMissingVolsMax, unsigned &numMissingVols);
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HRESULT ReadVols();
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HRESULT FindMarker(const UInt64 *searchLimit);
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HRESULT IncreaseRealPosition(UInt64 addValue, bool &isFinished);
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HRESULT LookAhead(size_t minRequiredInBuffer);
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void SafeRead(Byte *data, unsigned size);
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void ReadBuffer(CByteBuffer &buffer, unsigned size);
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// Byte ReadByte();
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// UInt16 ReadUInt16();
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UInt32 ReadUInt32();
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UInt64 ReadUInt64();
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void ReadSignature();
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void Skip(size_t num);
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HRESULT Skip64(UInt64 num, unsigned numFiles);
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bool ReadFileName(unsigned nameSize, AString &dest);
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bool ReadExtra(unsigned extraSize, CExtraBlock &extra,
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UInt64 &unpackSize, UInt64 &packSize, UInt64 &localOffset, UInt32 &disk);
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bool ReadLocalItem(CItemEx &item);
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HRESULT FindDescriptor(CItemEx &item, unsigned numFiles);
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HRESULT ReadCdItem(CItemEx &item);
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HRESULT TryEcd64(UInt64 offset, CCdInfo &cdInfo);
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HRESULT FindCd(bool checkOffsetMode);
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HRESULT TryReadCd(CObjectVector<CItemEx> &items, const CCdInfo &cdInfo, UInt64 cdOffset, UInt64 cdSize);
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HRESULT ReadCd(CObjectVector<CItemEx> &items, UInt32 &cdDisk, UInt64 &cdOffset, UInt64 &cdSize);
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HRESULT ReadLocals(CObjectVector<CItemEx> &localItems);
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HRESULT ReadHeaders(CObjectVector<CItemEx> &items);
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HRESULT GetVolStream(unsigned vol, UInt64 pos, CMyComPtr<ISequentialInStream> &stream);
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public:
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CInArchiveInfo ArcInfo;
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bool IsArc;
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bool IsZip64;
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bool HeadersError;
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bool HeadersWarning;
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bool ExtraMinorError;
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bool UnexpectedEnd;
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bool LocalsWereRead;
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bool LocalsCenterMerged;
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bool NoCentralDir;
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bool Overflow32bit; // = true, if zip without Zip64 extension support and it has some fields values truncated to 32-bits.
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bool Cd_NumEntries_Overflow_16bit; // = true, if no Zip64 and 16-bit ecd:NumEntries was overflowed.
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bool MarkerIsFound;
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bool MarkerIsSafe;
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bool IsMultiVol;
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bool UseDisk_in_SingleVol;
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UInt32 EcdVolIndex;
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CVols Vols;
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CInArchive(): Stream(NULL), StartStream(NULL), Callback(NULL), IsArcOpen(false) {}
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UInt64 GetPhySize() const
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{
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if (IsMultiVol)
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return ArcInfo.FinishPos;
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else
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return ArcInfo.FinishPos - ArcInfo.Base;
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}
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UInt64 GetOffset() const
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{
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if (IsMultiVol)
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return 0;
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else
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return ArcInfo.Base;
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}
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void ClearRefs();
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void Close();
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HRESULT Open(IInStream *stream, const UInt64 *searchLimit, IArchiveOpenCallback *callback, CObjectVector<CItemEx> &items);
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bool IsOpen() const { return IsArcOpen; }
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bool AreThereErrors() const
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{
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return HeadersError
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|| UnexpectedEnd
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|| !Vols.MissingName.IsEmpty();
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}
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bool IsLocalOffsetOK(const CItemEx &item) const
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{
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if (item.FromLocal)
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return true;
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return (Int64)GetOffset() + (Int64)item.LocalHeaderPos >= 0;
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}
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UInt64 GetEmbeddedStubSize() const
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{
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// it's possible that first item in CD doesn refers to first local item
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// so FirstItemRelatOffset is not first local item
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if (ArcInfo.CdWasRead)
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return ArcInfo.FirstItemRelatOffset;
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if (IsMultiVol)
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return 0;
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return ArcInfo.MarkerPos2 - ArcInfo.Base;
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}
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HRESULT CheckDescriptor(const CItemEx &item);
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HRESULT ReadLocalItemAfterCdItem(CItemEx &item, bool &isAvail, bool &headersError);
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HRESULT ReadLocalItemAfterCdItemFull(CItemEx &item);
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HRESULT GetItemStream(const CItemEx &item, bool seekPackData, CMyComPtr<ISequentialInStream> &stream);
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IInStream *GetBaseStream() { return StreamRef; }
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bool CanUpdate() const
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{
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if (AreThereErrors()
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|| IsMultiVol
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|| ArcInfo.Base < 0
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|| (Int64)ArcInfo.MarkerPos2 < ArcInfo.Base
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|| ArcInfo.ThereIsTail
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|| GetEmbeddedStubSize() != 0)
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return false;
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// 7-zip probably can update archives with embedded stubs.
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// we just disable that feature for more safety.
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return true;
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}
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};
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}}
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#endif
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// Archive/ZipIn.h
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#ifndef __ZIP_IN_H
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#define __ZIP_IN_H
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#include "../../../Common/MyBuffer2.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 "ZipItem.h"
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API_FUNC_IsArc IsArc_Zip(const Byte *p, size_t size);
|
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|
||||
namespace NArchive {
|
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namespace NZip {
|
||||
|
||||
class CItemEx: public CItem
|
||||
{
|
||||
public:
|
||||
UInt32 LocalFullHeaderSize; // including Name and Extra
|
||||
// int ParentOfAltStream; // -1, if not AltStream
|
||||
|
||||
bool DescriptorWasRead;
|
||||
|
||||
CItemEx():
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// ParentOfAltStream(-1),
|
||||
DescriptorWasRead(false) {}
|
||||
|
||||
UInt64 GetLocalFullSize() const
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{ return LocalFullHeaderSize + GetPackSizeWithDescriptor(); }
|
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UInt64 GetDataPosition() const
|
||||
{ return LocalHeaderPos + LocalFullHeaderSize; }
|
||||
};
|
||||
|
||||
|
||||
struct CInArchiveInfo
|
||||
{
|
||||
Int64 Base; /* Base offset of start of archive in stream.
|
||||
Offsets in headers must be calculated from that Base.
|
||||
Base is equal to MarkerPos for normal ZIPs.
|
||||
Base can point to PE stub for some ZIP SFXs.
|
||||
if CentralDir was read,
|
||||
Base can be negative, if start of data is not available,
|
||||
if CentralDirs was not read,
|
||||
Base = ArcInfo.MarkerPos; */
|
||||
|
||||
/* The following *Pos variables contain absolute offsets in Stream */
|
||||
|
||||
UInt64 MarkerPos; /* Pos of first signature, it can point to kSpan/kNoSpan signature
|
||||
= MarkerPos2 in most archives
|
||||
= MarkerPos2 - 4 if there is kSpan/kNoSpan signature */
|
||||
UInt64 MarkerPos2; // Pos of first local item signature in stream
|
||||
UInt64 FinishPos; // Finish pos of archive data in starting volume
|
||||
UInt64 FileEndPos; // Finish pos of stream
|
||||
|
||||
UInt64 FirstItemRelatOffset; /* Relative offset of first local (read from cd) (relative to Base).
|
||||
= 0 in most archives
|
||||
= size of stub for some SFXs */
|
||||
|
||||
|
||||
int MarkerVolIndex;
|
||||
|
||||
bool CdWasRead;
|
||||
bool IsSpanMode;
|
||||
bool ThereIsTail;
|
||||
|
||||
// UInt32 BaseVolIndex;
|
||||
|
||||
CByteBuffer Comment;
|
||||
|
||||
|
||||
CInArchiveInfo():
|
||||
Base(0),
|
||||
MarkerPos(0),
|
||||
MarkerPos2(0),
|
||||
FinishPos(0),
|
||||
FileEndPos(0),
|
||||
FirstItemRelatOffset(0),
|
||||
MarkerVolIndex(-1),
|
||||
CdWasRead(false),
|
||||
IsSpanMode(false),
|
||||
ThereIsTail(false)
|
||||
// BaseVolIndex(0)
|
||||
{}
|
||||
|
||||
void Clear()
|
||||
{
|
||||
// BaseVolIndex = 0;
|
||||
Base = 0;
|
||||
MarkerPos = 0;
|
||||
MarkerPos2 = 0;
|
||||
FinishPos = 0;
|
||||
FileEndPos = 0;
|
||||
MarkerVolIndex = -1;
|
||||
ThereIsTail = false;
|
||||
|
||||
FirstItemRelatOffset = 0;
|
||||
|
||||
CdWasRead = false;
|
||||
IsSpanMode = false;
|
||||
|
||||
Comment.Free();
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
struct CCdInfo
|
||||
{
|
||||
bool IsFromEcd64;
|
||||
|
||||
UInt16 CommentSize;
|
||||
|
||||
// 64
|
||||
UInt16 VersionMade;
|
||||
UInt16 VersionNeedExtract;
|
||||
|
||||
// old zip
|
||||
UInt32 ThisDisk;
|
||||
UInt32 CdDisk;
|
||||
UInt64 NumEntries_in_ThisDisk;
|
||||
UInt64 NumEntries;
|
||||
UInt64 Size;
|
||||
UInt64 Offset;
|
||||
|
||||
CCdInfo() { memset(this, 0, sizeof(*this)); IsFromEcd64 = false; }
|
||||
|
||||
void ParseEcd32(const Byte *p); // (p) includes signature
|
||||
void ParseEcd64e(const Byte *p); // (p) exclude signature
|
||||
|
||||
bool IsEmptyArc() const
|
||||
{
|
||||
return ThisDisk == 0
|
||||
&& CdDisk == 0
|
||||
&& NumEntries_in_ThisDisk == 0
|
||||
&& NumEntries == 0
|
||||
&& Size == 0
|
||||
&& Offset == 0 // test it
|
||||
;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
struct CVols
|
||||
{
|
||||
struct CSubStreamInfo
|
||||
{
|
||||
CMyComPtr<IInStream> Stream;
|
||||
UInt64 Size;
|
||||
|
||||
HRESULT SeekToStart() const { return Stream->Seek(0, STREAM_SEEK_SET, NULL); }
|
||||
|
||||
CSubStreamInfo(): Size(0) {}
|
||||
};
|
||||
|
||||
CObjectVector<CSubStreamInfo> Streams;
|
||||
|
||||
int StreamIndex; // -1 for StartStream
|
||||
// -2 for ZipStream at multivol detection code
|
||||
// >=0 volume index in multivol
|
||||
|
||||
bool NeedSeek;
|
||||
|
||||
bool DisableVolsSearch;
|
||||
bool StartIsExe; // is .exe
|
||||
bool StartIsZ; // is .zip or .zNN
|
||||
bool StartIsZip; // is .zip
|
||||
bool IsUpperCase;
|
||||
bool MissingZip;
|
||||
|
||||
bool ecd_wasRead;
|
||||
|
||||
Int32 StartVolIndex; // -1, if unknown vol index
|
||||
// = (NN - 1), if StartStream is .zNN
|
||||
// = 0, if start vol is exe
|
||||
|
||||
Int32 StartParsingVol; // if we need local parsing, we must use that stream
|
||||
unsigned NumVols;
|
||||
|
||||
int EndVolIndex; // index of last volume (ecd volume),
|
||||
// -1, if is not multivol
|
||||
|
||||
UString BaseName; // name of archive including '.'
|
||||
UString MissingName;
|
||||
|
||||
CMyComPtr<IInStream> ZipStream;
|
||||
|
||||
CCdInfo ecd;
|
||||
|
||||
UInt64 TotalBytesSize; // for MultiVol only
|
||||
|
||||
void ClearRefs()
|
||||
{
|
||||
Streams.Clear();
|
||||
ZipStream.Release();
|
||||
TotalBytesSize = 0;
|
||||
}
|
||||
|
||||
void Clear()
|
||||
{
|
||||
StreamIndex = -1;
|
||||
NeedSeek = false;
|
||||
|
||||
DisableVolsSearch = false;
|
||||
StartIsExe = false;
|
||||
StartIsZ = false;
|
||||
StartIsZip = false;
|
||||
IsUpperCase = false;
|
||||
|
||||
StartVolIndex = -1;
|
||||
StartParsingVol = 0;
|
||||
NumVols = 0;
|
||||
EndVolIndex = -1;
|
||||
|
||||
BaseName.Empty();
|
||||
MissingName.Empty();
|
||||
|
||||
MissingZip = false;
|
||||
ecd_wasRead = false;
|
||||
|
||||
ClearRefs();
|
||||
}
|
||||
|
||||
HRESULT ParseArcName(IArchiveOpenVolumeCallback *volCallback);
|
||||
|
||||
HRESULT Read(void *data, UInt32 size, UInt32 *processedSize);
|
||||
};
|
||||
|
||||
|
||||
class CVolStream:
|
||||
public ISequentialInStream,
|
||||
public CMyUnknownImp
|
||||
{
|
||||
public:
|
||||
CVols *Vols;
|
||||
|
||||
MY_UNKNOWN_IMP1(ISequentialInStream)
|
||||
|
||||
STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
|
||||
};
|
||||
|
||||
|
||||
class CInArchive
|
||||
{
|
||||
CMidBuffer Buffer;
|
||||
size_t _bufPos;
|
||||
size_t _bufCached;
|
||||
|
||||
UInt64 _streamPos;
|
||||
UInt64 _cnt;
|
||||
|
||||
// UInt32 _startLocalFromCd_Disk;
|
||||
// UInt64 _startLocalFromCd_Offset;
|
||||
|
||||
size_t GetAvail() const { return _bufCached - _bufPos; }
|
||||
|
||||
void InitBuf() { _bufPos = 0; _bufCached = 0; }
|
||||
void DisableBufMode() { InitBuf(); _inBufMode = false; }
|
||||
|
||||
void SkipLookahed(size_t skip)
|
||||
{
|
||||
_bufPos += skip;
|
||||
_cnt += skip;
|
||||
}
|
||||
|
||||
UInt64 GetVirtStreamPos() { return _streamPos - _bufCached + _bufPos; }
|
||||
|
||||
bool _inBufMode;
|
||||
|
||||
bool IsArcOpen;
|
||||
bool CanStartNewVol;
|
||||
|
||||
UInt32 _signature;
|
||||
|
||||
CMyComPtr<IInStream> StreamRef;
|
||||
IInStream *Stream;
|
||||
IInStream *StartStream;
|
||||
IArchiveOpenCallback *Callback;
|
||||
|
||||
HRESULT Seek_SavePos(UInt64 offset);
|
||||
HRESULT SeekToVol(int volIndex, UInt64 offset);
|
||||
|
||||
HRESULT ReadFromCache(Byte *data, unsigned size, unsigned &processed);
|
||||
|
||||
HRESULT ReadVols2(IArchiveOpenVolumeCallback *volCallback,
|
||||
unsigned start, int lastDisk, int zipDisk, unsigned numMissingVolsMax, unsigned &numMissingVols);
|
||||
HRESULT ReadVols();
|
||||
|
||||
HRESULT FindMarker(const UInt64 *searchLimit);
|
||||
HRESULT IncreaseRealPosition(UInt64 addValue, bool &isFinished);
|
||||
|
||||
HRESULT LookAhead(size_t minRequiredInBuffer);
|
||||
void SafeRead(Byte *data, unsigned size);
|
||||
void ReadBuffer(CByteBuffer &buffer, unsigned size);
|
||||
// Byte ReadByte();
|
||||
// UInt16 ReadUInt16();
|
||||
UInt32 ReadUInt32();
|
||||
UInt64 ReadUInt64();
|
||||
|
||||
void ReadSignature();
|
||||
|
||||
void Skip(size_t num);
|
||||
HRESULT Skip64(UInt64 num, unsigned numFiles);
|
||||
|
||||
bool ReadFileName(unsigned nameSize, AString &dest);
|
||||
|
||||
bool ReadExtra(unsigned extraSize, CExtraBlock &extra,
|
||||
UInt64 &unpackSize, UInt64 &packSize, UInt64 &localOffset, UInt32 &disk);
|
||||
bool ReadLocalItem(CItemEx &item);
|
||||
HRESULT FindDescriptor(CItemEx &item, unsigned numFiles);
|
||||
HRESULT ReadCdItem(CItemEx &item);
|
||||
HRESULT TryEcd64(UInt64 offset, CCdInfo &cdInfo);
|
||||
HRESULT FindCd(bool checkOffsetMode);
|
||||
HRESULT TryReadCd(CObjectVector<CItemEx> &items, const CCdInfo &cdInfo, UInt64 cdOffset, UInt64 cdSize);
|
||||
HRESULT ReadCd(CObjectVector<CItemEx> &items, UInt32 &cdDisk, UInt64 &cdOffset, UInt64 &cdSize);
|
||||
HRESULT ReadLocals(CObjectVector<CItemEx> &localItems);
|
||||
|
||||
HRESULT ReadHeaders(CObjectVector<CItemEx> &items);
|
||||
|
||||
HRESULT GetVolStream(unsigned vol, UInt64 pos, CMyComPtr<ISequentialInStream> &stream);
|
||||
|
||||
public:
|
||||
CInArchiveInfo ArcInfo;
|
||||
|
||||
bool IsArc;
|
||||
bool IsZip64;
|
||||
|
||||
bool HeadersError;
|
||||
bool HeadersWarning;
|
||||
bool ExtraMinorError;
|
||||
bool UnexpectedEnd;
|
||||
bool LocalsWereRead;
|
||||
bool LocalsCenterMerged;
|
||||
bool NoCentralDir;
|
||||
bool Overflow32bit; // = true, if zip without Zip64 extension support and it has some fields values truncated to 32-bits.
|
||||
bool Cd_NumEntries_Overflow_16bit; // = true, if no Zip64 and 16-bit ecd:NumEntries was overflowed.
|
||||
|
||||
bool MarkerIsFound;
|
||||
bool MarkerIsSafe;
|
||||
|
||||
bool IsMultiVol;
|
||||
bool UseDisk_in_SingleVol;
|
||||
UInt32 EcdVolIndex;
|
||||
|
||||
CVols Vols;
|
||||
|
||||
CInArchive(): Stream(NULL), StartStream(NULL), Callback(NULL), IsArcOpen(false) {}
|
||||
|
||||
UInt64 GetPhySize() const
|
||||
{
|
||||
if (IsMultiVol)
|
||||
return ArcInfo.FinishPos;
|
||||
else
|
||||
return ArcInfo.FinishPos - ArcInfo.Base;
|
||||
}
|
||||
|
||||
UInt64 GetOffset() const
|
||||
{
|
||||
if (IsMultiVol)
|
||||
return 0;
|
||||
else
|
||||
return ArcInfo.Base;
|
||||
}
|
||||
|
||||
|
||||
void ClearRefs();
|
||||
void Close();
|
||||
HRESULT Open(IInStream *stream, const UInt64 *searchLimit, IArchiveOpenCallback *callback, CObjectVector<CItemEx> &items);
|
||||
|
||||
bool IsOpen() const { return IsArcOpen; }
|
||||
|
||||
bool AreThereErrors() const
|
||||
{
|
||||
return HeadersError
|
||||
|| UnexpectedEnd
|
||||
|| !Vols.MissingName.IsEmpty();
|
||||
}
|
||||
|
||||
bool IsLocalOffsetOK(const CItemEx &item) const
|
||||
{
|
||||
if (item.FromLocal)
|
||||
return true;
|
||||
return (Int64)GetOffset() + (Int64)item.LocalHeaderPos >= 0;
|
||||
}
|
||||
|
||||
UInt64 GetEmbeddedStubSize() const
|
||||
{
|
||||
// it's possible that first item in CD doesn refers to first local item
|
||||
// so FirstItemRelatOffset is not first local item
|
||||
|
||||
if (ArcInfo.CdWasRead)
|
||||
return ArcInfo.FirstItemRelatOffset;
|
||||
if (IsMultiVol)
|
||||
return 0;
|
||||
return ArcInfo.MarkerPos2 - ArcInfo.Base;
|
||||
}
|
||||
|
||||
|
||||
HRESULT CheckDescriptor(const CItemEx &item);
|
||||
HRESULT ReadLocalItemAfterCdItem(CItemEx &item, bool &isAvail, bool &headersError);
|
||||
HRESULT ReadLocalItemAfterCdItemFull(CItemEx &item);
|
||||
|
||||
HRESULT GetItemStream(const CItemEx &item, bool seekPackData, CMyComPtr<ISequentialInStream> &stream);
|
||||
|
||||
IInStream *GetBaseStream() { return StreamRef; }
|
||||
|
||||
bool CanUpdate() const
|
||||
{
|
||||
if (AreThereErrors()
|
||||
|| IsMultiVol
|
||||
|| ArcInfo.Base < 0
|
||||
|| (Int64)ArcInfo.MarkerPos2 < ArcInfo.Base
|
||||
|| ArcInfo.ThereIsTail
|
||||
|| GetEmbeddedStubSize() != 0)
|
||||
return false;
|
||||
|
||||
// 7-zip probably can update archives with embedded stubs.
|
||||
// we just disable that feature for more safety.
|
||||
|
||||
return true;
|
||||
}
|
||||
};
|
||||
|
||||
}}
|
||||
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user