Initialer Commit

CPP/7zip/Archive/Udf/StdAfx.h

@@ -0,0 +1,8 @@
+// StdAfx.h
+
+#ifndef __STDAFX_H
+#define __STDAFX_H
+
+#include "../../../Common/Common.h"
+
+#endif

CPP/7zip/Archive/Udf/UdfHandler.cpp

@@ -0,0 +1,376 @@
+// UdfHandler.cpp
+
+#include "StdAfx.h"
+
+#include "../../../Common/ComTry.h"
+
+#include "../../../Windows/PropVariant.h"
+#include "../../../Windows/TimeUtils.h"
+
+#include "../../Common/LimitedStreams.h"
+#include "../../Common/ProgressUtils.h"
+#include "../../Common/RegisterArc.h"
+#include "../../Common/StreamObjects.h"
+
+#include "../../Compress/CopyCoder.h"
+
+#include "UdfHandler.h"
+
+namespace NArchive {
+namespace NUdf {
+
+static void UdfTimeToFileTime(const CTime &t, NWindows::NCOM::CPropVariant &prop)
+{
+  UInt64 numSecs;
+  const Byte *d = t.Data;
+  if (!NWindows::NTime::GetSecondsSince1601(t.GetYear(), d[4], d[5], d[6], d[7], d[8], numSecs))
+    return;
+  if (t.IsLocal())
+    numSecs -= (Int64)((Int32)t.GetMinutesOffset() * 60);
+  FILETIME ft;
+  UInt64 v = (((numSecs * 100 + d[9]) * 100 + d[10]) * 100 + d[11]) * 10;
+  ft.dwLowDateTime = (UInt32)v;
+  ft.dwHighDateTime = (UInt32)(v >> 32);
+  prop = ft;
+}
+
+static const Byte kProps[] =
+{
+  kpidPath,
+  kpidIsDir,
+  kpidSize,
+  kpidPackSize,
+  kpidMTime,
+  kpidATime
+};
+
+static const Byte kArcProps[] =
+{
+  kpidComment,
+  kpidClusterSize,
+  kpidCTime
+};
+
+IMP_IInArchive_Props
+IMP_IInArchive_ArcProps
+
+STDMETHODIMP CHandler::GetArchiveProperty(PROPID propID, PROPVARIANT *value)
+{
+  COM_TRY_BEGIN
+  NWindows::NCOM::CPropVariant prop;
+  switch (propID)
+  {
+    case kpidPhySize: prop = _archive.PhySize; break;
+
+    case kpidComment:
+    {
+      UString comment = _archive.GetComment();
+      if (!comment.IsEmpty())
+        prop = comment;
+      break;
+    }
+
+    case kpidClusterSize:
+      if (_archive.LogVols.Size() > 0)
+      {
+        UInt32 blockSize = _archive.LogVols[0].BlockSize;
+        unsigned i;
+        for (i = 1; i < _archive.LogVols.Size(); i++)
+          if (_archive.LogVols[i].BlockSize != blockSize)
+            break;
+        if (i == _archive.LogVols.Size())
+          prop = blockSize;
+      }
+      break;
+
+    case kpidCTime:
+      if (_archive.LogVols.Size() == 1)
+      {
+        const CLogVol &vol = _archive.LogVols[0];
+        if (vol.FileSets.Size() >= 1)
+          UdfTimeToFileTime(vol.FileSets[0].RecodringTime, prop);
+      }
+      break;
+
+    case kpidErrorFlags:
+    {
+      UInt32 v = 0;
+      if (!_archive.IsArc) v |= kpv_ErrorFlags_IsNotArc;
+      if (_archive.Unsupported) v |= kpv_ErrorFlags_UnsupportedFeature;
+      if (_archive.UnexpectedEnd) v |= kpv_ErrorFlags_UnexpectedEnd;
+      if (_archive.NoEndAnchor) v |= kpv_ErrorFlags_HeadersError;
+      prop = v;
+      break;
+    }
+  }
+  prop.Detach(value);
+  return S_OK;
+  COM_TRY_END
+}
+
+class CProgressImp: public CProgressVirt
+{
+  CMyComPtr<IArchiveOpenCallback> _callback;
+  UInt64 _numFiles;
+  UInt64 _numBytes;
+public:
+  HRESULT SetTotal(UInt64 numBytes);
+  HRESULT SetCompleted(UInt64 numFiles, UInt64 numBytes);
+  HRESULT SetCompleted();
+  CProgressImp(IArchiveOpenCallback *callback): _callback(callback), _numFiles(0), _numBytes(0) {}
+};
+
+HRESULT CProgressImp::SetTotal(UInt64 numBytes)
+{
+  if (_callback)
+    return _callback->SetTotal(NULL, &numBytes);
+  return S_OK;
+}
+
+HRESULT CProgressImp::SetCompleted(UInt64 numFiles, UInt64 numBytes)
+{
+  _numFiles = numFiles;
+  _numBytes = numBytes;
+  return SetCompleted();
+}
+
+HRESULT CProgressImp::SetCompleted()
+{
+  if (_callback)
+    return _callback->SetCompleted(&_numFiles, &_numBytes);
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::Open(IInStream *stream, const UInt64 *, IArchiveOpenCallback *callback)
+{
+  COM_TRY_BEGIN
+  {
+    Close();
+    CProgressImp progressImp(callback);
+    RINOK(_archive.Open(stream, &progressImp));
+    bool showVolName = (_archive.LogVols.Size() > 1);
+    FOR_VECTOR (volIndex, _archive.LogVols)
+    {
+      const CLogVol &vol = _archive.LogVols[volIndex];
+      bool showFileSetName = (vol.FileSets.Size() > 1);
+      FOR_VECTOR (fsIndex, vol.FileSets)
+      {
+        const CFileSet &fs = vol.FileSets[fsIndex];
+        for (unsigned i = ((showVolName || showFileSetName) ? 0 : 1); i < fs.Refs.Size(); i++)
+        {
+          CRef2 ref2;
+          ref2.Vol = volIndex;
+          ref2.Fs = fsIndex;
+          ref2.Ref = i;
+          _refs2.Add(ref2);
+        }
+      }
+    }
+    _inStream = stream;
+  }
+  return S_OK;
+  COM_TRY_END
+}
+
+STDMETHODIMP CHandler::Close()
+{
+  _inStream.Release();
+  _archive.Clear();
+  _refs2.Clear();
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::GetNumberOfItems(UInt32 *numItems)
+{
+  *numItems = _refs2.Size();
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::GetProperty(UInt32 index, PROPID propID, PROPVARIANT *value)
+{
+  COM_TRY_BEGIN
+  NWindows::NCOM::CPropVariant prop;
+  {
+    const CRef2 &ref2 = _refs2[index];
+    const CLogVol &vol = _archive.LogVols[ref2.Vol];
+    const CRef &ref = vol.FileSets[ref2.Fs].Refs[ref2.Ref];
+    const CFile &file = _archive.Files[ref.FileIndex];
+    const CItem &item = _archive.Items[file.ItemIndex];
+    switch (propID)
+    {
+      case kpidPath:  prop = _archive.GetItemPath(ref2.Vol, ref2.Fs, ref2.Ref,
+            _archive.LogVols.Size() > 1, vol.FileSets.Size() > 1); break;
+      case kpidIsDir:  prop = item.IsDir(); break;
+      case kpidSize:      if (!item.IsDir()) prop = (UInt64)item.Size; break;
+      case kpidPackSize:  if (!item.IsDir()) prop = (UInt64)item.NumLogBlockRecorded * vol.BlockSize; break;
+      case kpidMTime:  UdfTimeToFileTime(item.MTime, prop); break;
+      case kpidATime:  UdfTimeToFileTime(item.ATime, prop); break;
+    }
+  }
+  prop.Detach(value);
+  return S_OK;
+  COM_TRY_END
+}
+
+STDMETHODIMP CHandler::GetStream(UInt32 index, ISequentialInStream **stream)
+{
+  *stream = 0;
+
+  const CRef2 &ref2 = _refs2[index];
+  const CLogVol &vol = _archive.LogVols[ref2.Vol];
+  const CRef &ref = vol.FileSets[ref2.Fs].Refs[ref2.Ref];
+  const CFile &file = _archive.Files[ref.FileIndex];
+  const CItem &item = _archive.Items[file.ItemIndex];
+  UInt64 size = item.Size;
+
+  if (!item.IsRecAndAlloc() || !item.CheckChunkSizes() || ! _archive.CheckItemExtents(ref2.Vol, item))
+    return E_NOTIMPL;
+
+  if (item.IsInline)
+  {
+    Create_BufInStream_WithNewBuffer(item.InlineData, stream);
+    return S_OK;
+  }
+
+  CExtentsStream *extentStreamSpec = new CExtentsStream();
+  CMyComPtr<ISequentialInStream> extentStream = extentStreamSpec;
+  
+  extentStreamSpec->Stream = _inStream;
+
+  UInt64 virtOffset = 0;
+  FOR_VECTOR (extentIndex, item.Extents)
+  {
+    const CMyExtent &extent = item.Extents[extentIndex];
+    UInt32 len = extent.GetLen();
+    if (len == 0)
+      continue;
+    if (size < len)
+      return S_FALSE;
+      
+    int partitionIndex = vol.PartitionMaps[extent.PartitionRef].PartitionIndex;
+    UInt32 logBlockNumber = extent.Pos;
+    const CPartition &partition = _archive.Partitions[partitionIndex];
+    UInt64 offset = ((UInt64)partition.Pos << _archive.SecLogSize) +
+      (UInt64)logBlockNumber * vol.BlockSize;
+      
+    CSeekExtent se;
+    se.Phy = offset;
+    se.Virt = virtOffset;
+    virtOffset += len;
+    extentStreamSpec->Extents.Add(se);
+
+    size -= len;
+  }
+  if (size != 0)
+    return S_FALSE;
+  CSeekExtent se;
+  se.Phy = 0;
+  se.Virt = virtOffset;
+  extentStreamSpec->Extents.Add(se);
+  extentStreamSpec->Init();
+  *stream = extentStream.Detach();
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::Extract(const UInt32 *indices, UInt32 numItems,
+    Int32 testMode, IArchiveExtractCallback *extractCallback)
+{
+  COM_TRY_BEGIN
+  bool allFilesMode = (numItems == (UInt32)(Int32)-1);
+  if (allFilesMode)
+    numItems = _refs2.Size();
+  if (numItems == 0)
+    return S_OK;
+  UInt64 totalSize = 0;
+  UInt32 i;
+
+  for (i = 0; i < numItems; i++)
+  {
+    UInt32 index = (allFilesMode ? i : indices[i]);
+    const CRef2 &ref2 = _refs2[index];
+    const CRef &ref = _archive.LogVols[ref2.Vol].FileSets[ref2.Fs].Refs[ref2.Ref];
+    const CFile &file = _archive.Files[ref.FileIndex];
+    const CItem &item = _archive.Items[file.ItemIndex];
+    if (!item.IsDir())
+      totalSize += item.Size;
+  }
+  extractCallback->SetTotal(totalSize);
+
+  UInt64 currentTotalSize = 0;
+  
+  NCompress::CCopyCoder *copyCoderSpec = new NCompress::CCopyCoder();
+  CMyComPtr<ICompressCoder> copyCoder = copyCoderSpec;
+
+  CLocalProgress *lps = new CLocalProgress;
+  CMyComPtr<ICompressProgressInfo> progress = lps;
+  lps->Init(extractCallback, false);
+
+  CLimitedSequentialOutStream *outStreamSpec = new CLimitedSequentialOutStream;
+  CMyComPtr<ISequentialOutStream> outStream(outStreamSpec);
+
+  for (i = 0; i < numItems; i++)
+  {
+    lps->InSize = lps->OutSize = currentTotalSize;
+    RINOK(lps->SetCur());
+    CMyComPtr<ISequentialOutStream> realOutStream;
+    Int32 askMode = testMode ?
+        NExtract::NAskMode::kTest :
+        NExtract::NAskMode::kExtract;
+    UInt32 index = allFilesMode ? i : indices[i];
+    
+    RINOK(extractCallback->GetStream(index, &realOutStream, askMode));
+
+    const CRef2 &ref2 = _refs2[index];
+    const CRef &ref = _archive.LogVols[ref2.Vol].FileSets[ref2.Fs].Refs[ref2.Ref];
+    const CFile &file = _archive.Files[ref.FileIndex];
+    const CItem &item = _archive.Items[file.ItemIndex];
+
+    if (item.IsDir())
+    {
+      RINOK(extractCallback->PrepareOperation(askMode));
+      RINOK(extractCallback->SetOperationResult(NExtract::NOperationResult::kOK));
+      continue;
+    }
+    currentTotalSize += item.Size;
+
+    if (!testMode && !realOutStream)
+      continue;
+
+    RINOK(extractCallback->PrepareOperation(askMode));
+    outStreamSpec->SetStream(realOutStream);
+    realOutStream.Release();
+    outStreamSpec->Init(item.Size);
+    Int32 opRes;
+    CMyComPtr<ISequentialInStream> udfInStream;
+    HRESULT res = GetStream(index, &udfInStream);
+    if (res == E_NOTIMPL)
+      opRes = NExtract::NOperationResult::kUnsupportedMethod;
+    else if (res != S_OK)
+      opRes = NExtract::NOperationResult::kDataError;
+    else
+    {
+      RINOK(copyCoder->Code(udfInStream, outStream, NULL, NULL, progress));
+      opRes = outStreamSpec->IsFinishedOK() ?
+        NExtract::NOperationResult::kOK:
+        NExtract::NOperationResult::kDataError;
+    }
+    outStreamSpec->ReleaseStream();
+    RINOK(extractCallback->SetOperationResult(opRes));
+  }
+  return S_OK;
+  COM_TRY_END
+}
+
+static const UInt32 kIsoStartPos = 0x8000;
+
+//  5, { 0, 'N', 'S', 'R', '0' },
+static const Byte k_Signature[] = { 1, 'C', 'D', '0', '0', '1' };
+
+REGISTER_ARC_I(
+  "Udf", "udf iso img", 0, 0xE0,
+  k_Signature,
+  kIsoStartPos,
+  NArcInfoFlags::kStartOpen,
+  IsArc_Udf)
+
+}}

CPP/7zip/Archive/Udf/UdfHandler.h

@@ -0,0 +1,38 @@
+// UdfHandler.h
+
+#ifndef __UDF_HANDLER_H
+#define __UDF_HANDLER_H
+
+#include "../../../Common/MyCom.h"
+
+#include "../IArchive.h"
+
+#include "UdfIn.h"
+
+namespace NArchive {
+namespace NUdf {
+
+struct CRef2
+{
+  unsigned Vol;
+  unsigned Fs;
+  unsigned Ref;
+};
+
+class CHandler:
+  public IInArchive,
+  public IInArchiveGetStream,
+  public CMyUnknownImp
+{
+  CMyComPtr<IInStream> _inStream;
+  CInArchive _archive;
+  CRecordVector<CRef2> _refs2;
+public:
+  MY_UNKNOWN_IMP2(IInArchive, IInArchiveGetStream)
+  INTERFACE_IInArchive(;)
+  STDMETHOD(GetStream)(UInt32 index, ISequentialInStream **stream);
+};
+
+}}
+
+#endif

CPP/7zip/Archive/Udf/UdfIn.h

@@ -0,0 +1,394 @@
+// Archive/UdfIn.h -- UDF / ECMA-167
+
+#ifndef __ARCHIVE_UDF_IN_H
+#define __ARCHIVE_UDF_IN_H
+
+#include "../../../Common/IntToString.h"
+#include "../../../Common/MyBuffer.h"
+#include "../../../Common/MyCom.h"
+#include "../../../Common/MyMap.h"
+#include "../../../Common/MyString.h"
+
+#include "../../IStream.h"
+
+namespace NArchive {
+namespace NUdf {
+
+// ---------- ECMA Part 1 ----------
+
+// ECMA 1/7.2.12
+
+/*
+struct CDString32
+{
+  Byte Data[32];
+  
+  void Parse(const Byte *buf);
+  // UString GetString() const;
+};
+*/
+
+struct CDString128
+{
+  Byte Data[128];
+  
+  void Parse(const Byte *buf) { memcpy(Data, buf, sizeof(Data)); }
+  UString GetString() const;
+};
+
+struct CDString
+{
+  CByteBuffer Data;
+  
+  void Parse(const Byte *p, unsigned size);
+  UString GetString() const;
+};
+
+
+// ECMA 1/7.3
+
+struct CTime
+{
+  Byte Data[12];
+
+  unsigned GetType() const { return Data[1] >> 4; }
+  bool IsLocal() const { return GetType() == 1; }
+  int GetMinutesOffset() const
+  {
+    int t = (Data[0] | ((unsigned)Data[1] << 8)) & 0xFFF;
+    if ((t >> 11) != 0)
+      t -= (1 << 12);
+    return (t > (60 * 24) || t < -(60 * 24)) ? 0 : t;
+  }
+  unsigned GetYear() const { return (Data[2] | ((unsigned)Data[3] << 8)); }
+  void Parse(const Byte *buf);
+};
+
+
+// ECMA 1/7.4
+
+/*
+struct CRegId
+{
+  Byte Flags;
+  char Id[23];
+  char Suffix[8];
+
+  void Parse(const Byte *buf);
+};
+*/
+
+// ---------- ECMA Part 3: Volume Structure ----------
+
+// ECMA 3/10.5
+
+struct CPartition
+{
+  // UInt16 Flags;
+  UInt16 Number;
+  // CRegId ContentsId;
+  // Byte ContentsUse[128];
+  // UInt32 AccessType;
+
+  UInt32 Pos;
+  UInt32 Len;
+
+  // CRegId ImplId;
+  // Byte ImplUse[128];
+
+  int VolIndex;
+  CMap32 Map;
+
+  CPartition(): VolIndex(-1) {}
+
+  // bool IsNsr() const { return (strncmp(ContentsId.Id, "+NSR0", 5) == 0); }
+  // bool IsAllocated() const { return ((Flags & 1) != 0); }
+};
+
+struct CLogBlockAddr
+{
+  UInt32 Pos;
+  UInt16 PartitionRef;
+  
+  void Parse(const Byte *buf);
+};
+
+enum EShortAllocDescType
+{
+  SHORT_ALLOC_DESC_TYPE_RecordedAndAllocated = 0,
+  SHORT_ALLOC_DESC_TYPE_NotRecordedButAllocated = 1,
+  SHORT_ALLOC_DESC_TYPE_NotRecordedAndNotAllocated = 2,
+  SHORT_ALLOC_DESC_TYPE_NextExtent = 3
+};
+
+struct CShortAllocDesc
+{
+  UInt32 Len;
+  UInt32 Pos;
+
+  // 4/14.14.1
+  // UInt32 GetLen() const { return Len & 0x3FFFFFFF; }
+  // UInt32 GetType() const { return Len >> 30; }
+  // bool IsRecAndAlloc() const { return GetType() == SHORT_ALLOC_DESC_TYPE_RecordedAndAllocated; }
+  void Parse(const Byte *buf);
+};
+
+/*
+struct CADImpUse
+{
+  UInt16 Flags;
+  UInt32 UdfUniqueId;
+  void Parse(const Byte *buf);
+};
+*/
+
+struct CLongAllocDesc
+{
+  UInt32 Len;
+  CLogBlockAddr Location;
+  
+  // Byte ImplUse[6];
+  // CADImpUse adImpUse; // UDF
+  
+  UInt32 GetLen() const { return Len & 0x3FFFFFFF; }
+  UInt32 GetType() const { return Len >> 30; }
+  bool IsRecAndAlloc() const { return GetType() == SHORT_ALLOC_DESC_TYPE_RecordedAndAllocated; }
+  void Parse(const Byte *buf);
+};
+
+struct CPartitionMap
+{
+  Byte Type;
+  // Byte Len;
+
+  // Type - 1
+  // UInt16 VolSeqNumber;
+  UInt16 PartitionNumber;
+
+  // Byte Data[256];
+
+  int PartitionIndex;
+};
+
+// ECMA 4/14.6
+
+enum EIcbFileType
+{
+  ICB_FILE_TYPE_DIR = 4,
+  ICB_FILE_TYPE_FILE = 5
+};
+
+enum EIcbDescriptorType
+{
+  ICB_DESC_TYPE_SHORT = 0,
+  ICB_DESC_TYPE_LONG = 1,
+  ICB_DESC_TYPE_EXTENDED = 2,
+  ICB_DESC_TYPE_INLINE = 3
+};
+
+struct CIcbTag
+{
+  // UInt32 PriorDirectNum;
+  // UInt16 StrategyType;
+  // UInt16 StrategyParam;
+  // UInt16 MaxNumOfEntries;
+  Byte FileType;
+  // CLogBlockAddr ParentIcb;
+  UInt16 Flags;
+
+  bool IsDir() const { return FileType == ICB_FILE_TYPE_DIR; }
+  int GetDescriptorType() const { return Flags & 3; }
+  void Parse(const Byte *p);
+};
+
+// const Byte FILEID_CHARACS_Existance = (1 << 0);
+const Byte FILEID_CHARACS_Parent = (1 << 3);
+
+struct CFile
+{
+  // UInt16 FileVersion;
+  // Byte FileCharacteristics;
+  // CByteBuffer ImplUse;
+  CDString Id;
+
+  int ItemIndex;
+
+  CFile(): /* FileVersion(0), FileCharacteristics(0), */ ItemIndex(-1) {}
+  UString GetName() const { return Id.GetString(); }
+};
+
+struct CMyExtent
+{
+  UInt32 Pos;
+  UInt32 Len;
+  unsigned PartitionRef;
+  
+  UInt32 GetLen() const { return Len & 0x3FFFFFFF; }
+  UInt32 GetType() const { return Len >> 30; }
+  bool IsRecAndAlloc() const { return GetType() == SHORT_ALLOC_DESC_TYPE_RecordedAndAllocated; }
+};
+
+struct CItem
+{
+  CIcbTag IcbTag;
+
+  // UInt32 Uid;
+  // UInt32 Gid;
+  // UInt32 Permissions;
+  // UInt16 FileLinkCount;
+  // Byte RecordFormat;
+  // Byte RecordDisplayAttr;
+  // UInt32 RecordLen;
+  UInt64 Size;
+  UInt64 NumLogBlockRecorded;
+  CTime ATime;
+  CTime MTime;
+  // CTime AttrtTime;
+  // UInt32 CheckPoint;
+  // CLongAllocDesc ExtendedAttrIcb;
+  // CRegId ImplId;
+  // UInt64 UniqueId;
+
+  bool IsInline;
+  CByteBuffer InlineData;
+  CRecordVector<CMyExtent> Extents;
+  CUIntVector SubFiles;
+
+  void Parse(const Byte *buf);
+
+  bool IsRecAndAlloc() const
+  {
+    FOR_VECTOR (i, Extents)
+      if (!Extents[i].IsRecAndAlloc())
+        return false;
+    return true;
+  }
+
+  UInt64 GetChunksSumSize() const
+  {
+    if (IsInline)
+      return InlineData.Size();
+    UInt64 size = 0;
+    FOR_VECTOR (i, Extents)
+      size += Extents[i].GetLen();
+    return size;
+  }
+
+  bool CheckChunkSizes() const  {  return GetChunksSumSize() == Size; }
+
+  bool IsDir() const { return IcbTag.IsDir(); }
+};
+ 
+struct CRef
+{
+  int Parent;
+  unsigned FileIndex;
+};
+
+
+// ECMA 4 / 14.1
+struct CFileSet
+{
+  CTime RecodringTime;
+  // UInt16 InterchangeLevel;
+  // UInt16 MaxInterchangeLevel;
+  // UInt32 FileSetNumber;
+  // UInt32 FileSetDescNumber;
+  // CDString32 Id;
+  // CDString32 CopyrightId;
+  // CDString32 AbstractId;
+
+  CLongAllocDesc RootDirICB;
+  // CRegId DomainId;
+  // CLongAllocDesc SystemStreamDirICB;
+
+  CRecordVector<CRef> Refs;
+};
+
+
+// ECMA 3/10.6
+
+struct CLogVol
+{
+  CDString128 Id;
+  UInt32 BlockSize;
+  // CRegId DomainId;
+  
+  // Byte ContentsUse[16];
+  CLongAllocDesc FileSetLocation; // UDF
+
+  // CRegId ImplId;
+  // Byte ImplUse[128];
+
+  CObjectVector<CPartitionMap> PartitionMaps;
+  CObjectVector<CFileSet> FileSets;
+
+  UString GetName() const { return Id.GetString(); }
+};
+
+struct CProgressVirt
+{
+  virtual HRESULT SetTotal(UInt64 numBytes) PURE;
+  virtual HRESULT SetCompleted(UInt64 numFiles, UInt64 numBytes) PURE;
+  virtual HRESULT SetCompleted() PURE;
+};
+
+class CInArchive
+{
+  IInStream *_stream;
+  CProgressVirt *_progress;
+
+  HRESULT Read(int volIndex, int partitionRef, UInt32 blockPos, UInt32 len, Byte *buf);
+  HRESULT Read(int volIndex, const CLongAllocDesc &lad, Byte *buf);
+  HRESULT ReadFromFile(int volIndex, const CItem &item, CByteBuffer &buf);
+
+  HRESULT ReadFileItem(int volIndex, int fsIndex, const CLongAllocDesc &lad, int numRecurseAllowed);
+  HRESULT ReadItem(int volIndex, int fsIndex, const CLongAllocDesc &lad, int numRecurseAllowed);
+
+  HRESULT Open2();
+  HRESULT FillRefs(CFileSet &fs, unsigned fileIndex, int parent, int numRecurseAllowed);
+
+  UInt64 _processedProgressBytes;
+
+  UInt64 _fileNameLengthTotal;
+  int _numRefs;
+  UInt32 _numExtents;
+  UInt64 _inlineExtentsSize;
+  bool CheckExtent(int volIndex, int partitionRef, UInt32 blockPos, UInt32 len) const;
+
+public:
+  CObjectVector<CPartition> Partitions;
+  CObjectVector<CLogVol> LogVols;
+
+  CObjectVector<CItem> Items;
+  CObjectVector<CFile> Files;
+
+  unsigned SecLogSize;
+  UInt64 PhySize;
+  UInt64 FileSize;
+
+  bool IsArc;
+  bool Unsupported;
+  bool UnexpectedEnd;
+  bool NoEndAnchor;
+
+  void UpdatePhySize(UInt64 val)
+  {
+    if (PhySize < val)
+      PhySize = val;
+  }
+  HRESULT Open(IInStream *inStream, CProgressVirt *progress);
+  void Clear();
+
+  UString GetComment() const;
+  UString GetItemPath(int volIndex, int fsIndex, int refIndex,
+      bool showVolName, bool showFsName) const;
+
+  bool CheckItemExtents(int volIndex, const CItem &item) const;
+};
+
+API_FUNC_IsArc IsArc_Udf(const Byte *p, size_t size);
+
+}}
+  
+#endif