4.52 beta

2025-12-06 07:14:55 -06:00 · 2007-08-03 00:00:00 +00:00
parent d14d4dcdef
commit 33ccab7e72
26 changed files with 912 additions and 135 deletions
--- a/CPP/7zip/Archive/Cab/CabBlockInStream.h
+++ b/CPP/7zip/Archive/Cab/CabBlockInStream.h
@@ -17,7 +17,6 @@ class CCabBlockInStream:
  Byte *_buffer;
  UInt32 _pos;
  UInt32 _size;
-  int _align;

 public:
  UInt32 TotalPackSize;
@@ -25,24 +24,13 @@ public:
  bool DataError;
  bool MsZip;

-  CCabBlockInStream(): _buffer(0), ReservedSize(0), MsZip(false), DataError(false), _align(0), TotalPackSize(0) {}
+  CCabBlockInStream(): _buffer(0), ReservedSize(0), MsZip(false), DataError(false), TotalPackSize(0) {}
  ~CCabBlockInStream();
  bool Create();
  void SetStream(ISequentialInStream *stream) {  _stream = stream; }

-  void InitForNewFolder()
-  {
-    _align = 0;
-    TotalPackSize = 0;
-  }
-  
-  void InitForNewBlock()
-  {
-    _size = 0;
-    _align = (_align + (int)TotalPackSize) & 1;
-  }
-
-  int GetAlign() const { return _align; }
+  void InitForNewFolder() { TotalPackSize = 0; }
+  void InitForNewBlock() { _size = 0; }

  MY_UNKNOWN_IMP

--- a/CPP/7zip/Archive/Cab/CabHandler.cpp
+++ b/CPP/7zip/Archive/Cab/CabHandler.cpp
@@ -769,7 +769,7 @@ STDMETHODIMP CHandler::Extract(const UInt32* indices, UInt32 numItems,
            res = deflateDecoder->Code(cabBlockInStream, outStream, NULL, &unpackRemain, NULL);
            break;
          case NHeader::NCompressionMethodMajor::kLZX:
-            lzxDecoderSpec->SetKeepHistory(keepHistory, cabBlockInStreamSpec->GetAlign());
+            lzxDecoderSpec->SetKeepHistory(keepHistory);
            res = lzxDecoder->Code(cabBlockInStream, outStream, NULL, &unpackRemain, NULL);
            break;
          case NHeader::NCompressionMethodMajor::kQuantum:
--- a/CPP/7zip/Archive/Chm/ChmHandler.cpp
+++ b/CPP/7zip/Archive/Chm/ChmHandler.cpp
@@ -262,7 +262,7 @@ public:
    const CFilesDatabase *database,
    IArchiveExtractCallback *extractCallback,
    bool testMode);
-    HRESULT FlushCorrupted();
+  HRESULT FlushCorrupted(UInt64 maxSize);
 };

 void CChmFolderOutStream::Init(
@@ -356,7 +356,7 @@ HRESULT CChmFolderOutStream::Write2(const void *data, UInt32 size, UInt32 *proce
    else
    {
      if (m_CurrentIndex >= m_NumFiles)
-        return E_FAIL;
+        return E_FAIL; 
      int fullIndex = m_StartIndex + m_CurrentIndex;
      m_RemainFileSize = m_Database->GetFileSize(fullIndex);
      UInt64 fileOffset = m_Database->GetFileOffset(fullIndex);
@@ -390,17 +390,21 @@ STDMETHODIMP CChmFolderOutStream::Write(const void *data, UInt32 size, UInt32 *p
  return Write2(data, size, processedSize, true);
 }

-HRESULT CChmFolderOutStream::FlushCorrupted()
+HRESULT CChmFolderOutStream::FlushCorrupted(UInt64 maxSize)
 {
  const UInt32 kBufferSize = (1 << 10);
  Byte buffer[kBufferSize];
  for (int i = 0; i < kBufferSize; i++)
    buffer[i] = 0;
-  while(m_PosInFolder < m_FolderSize)
+  if (maxSize > m_FolderSize)
+    maxSize = m_FolderSize;
+  while (m_PosInFolder < maxSize)
  {
-    UInt32 size = (UInt32)MyMin(m_FolderSize - m_PosInFolder, (UInt64)kBufferSize);
+    UInt32 size = (UInt32)MyMin(maxSize - m_PosInFolder, (UInt64)kBufferSize);
    UInt32 processedSizeLocal = 0;
    RINOK(Write2(buffer, size, &processedSizeLocal, false));
+    if (processedSizeLocal == 0)
+      return S_OK;
  }
  return S_OK;
 }
@@ -688,24 +692,28 @@ STDMETHODIMP CHandler::Extract(const UInt32* indices, UInt32 numItems,
          UInt64 bCur = startBlock + b;
          if (bCur >= rt.ResetOffsets.Size())
            return E_FAIL;
-          UInt64 startOffset = rt.ResetOffsets[(int)startBlock];
          UInt64 offset = rt.ResetOffsets[(int)bCur];
          UInt64 compressedSize;
          rt.GetCompressedSizeOfBlock(bCur, compressedSize);
          UInt64 rem = finishPos - chmFolderOutStream->m_PosInSection;
          if (rem > rt.BlockSize)
            rem = rt.BlockSize;
-          // const UInt64 *offsets = (const UInt64 *)&rt.ResetOffsets.Front();
          RINOK(m_Stream->Seek(compressedPos + offset, STREAM_SEEK_SET, NULL));
          streamSpec->SetStream(m_Stream);
          streamSpec->Init(compressedSize);
-          lzxDecoderSpec->SetKeepHistory(b > 0, (int)((offset - startOffset) & 1));
-          RINOK(lzxDecoder->Code(inStream, outStream, NULL, &rem, NULL));
+          lzxDecoderSpec->SetKeepHistory(b > 0);
+          HRESULT res = lzxDecoder->Code(inStream, outStream, NULL, &rem, NULL);
+          if (res != S_OK)
+          {
+            if (res != S_FALSE)
+              return res;
+            throw 1;
+          }
        }
      }
      catch(...)
      {
-        RINOK(chmFolderOutStream->FlushCorrupted());
+        RINOK(chmFolderOutStream->FlushCorrupted(unPackSize));
      }
      currentTotalSize += folderSize;
      if (folderIndex == lastFolderIndex)
--- a/CPP/7zip/Archive/Com/ComHandler.cpp
+++ b/CPP/7zip/Archive/Com/ComHandler.cpp
@@ -0,0 +1,264 @@
+// ComHandler.cpp
+
+#include "StdAfx.h"
+
+#include "Common/ComTry.h"
+#include "Windows/PropVariant.h"
+#include "../../Common/StreamUtils.h"
+#include "ComHandler.h"
+
+namespace NArchive {
+namespace NCom {
+
+STATPROPSTG kProperties[] = 
+{
+  { NULL, kpidPath, VT_BSTR},
+  { NULL, kpidIsFolder, VT_BOOL},
+  { NULL, kpidSize, VT_UI8},
+  // { NULL, kpidAttributes, VT_UI4},
+  { NULL, kpidPackedSize, VT_UI8},
+  { NULL, kpidCreationTime, VT_FILETIME},
+  { NULL, kpidLastWriteTime, VT_FILETIME}
+};
+
+STDMETHODIMP CHandler::GetArchiveProperty(PROPID /* propID */, PROPVARIANT *value)
+{
+  value->vt = VT_EMPTY;
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::GetNumberOfProperties(UInt32 *numProperties)
+{
+  *numProperties = sizeof(kProperties) / sizeof(kProperties[0]);
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::GetPropertyInfo(UInt32 index,     
+      BSTR *name, PROPID *propID, VARTYPE *varType)
+{
+  if(index >= sizeof(kProperties) / sizeof(kProperties[0]))
+    return E_INVALIDARG;
+  const STATPROPSTG &srcItem = kProperties[index];
+  *propID = srcItem.propid;
+  *varType = srcItem.vt;
+  if (srcItem.lpwstrName == 0)
+    *name = 0;
+  else
+    *name = ::SysAllocString(srcItem.lpwstrName);
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::GetNumberOfArchiveProperties(UInt32 *numProperties)
+{
+  *numProperties = 0;
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::GetArchivePropertyInfo(UInt32 /* index */,     
+      BSTR * /* name */, PROPID * /* propID */, VARTYPE * /* varType */)
+{
+  return E_INVALIDARG;
+}
+
+STDMETHODIMP CHandler::GetProperty(UInt32 index, PROPID propID, PROPVARIANT *value)
+{
+  COM_TRY_BEGIN
+  NWindows::NCOM::CPropVariant propVariant;
+  const CRef &ref = _db.Refs[index];
+  const CItem &item = _db.Items[ref.Did];
+    
+  switch(propID)
+  {
+    case kpidPath:
+    {
+      UString name = _db.GetItemPath(index);
+      propVariant = name;
+      break;
+    }
+    case kpidIsFolder:
+      propVariant = item.IsDir();
+      break;
+    case kpidCreationTime:
+      propVariant = item.CreationTime;
+      break;
+    case kpidLastWriteTime:
+      propVariant = item.LastWriteTime;
+      break;
+    /*
+    case kpidAttributes:
+      propVariant = item.Falgs;
+      break;
+    */
+    case kpidPackedSize:
+      if (!item.IsDir())
+      {
+        int numBits = _db.IsLargeStream(item.Size) ? 
+            _db.SectorSizeBits : 
+            _db.MiniSectorSizeBits;
+        propVariant = (item.Size + ((UInt32)1 << numBits) - 1) >> numBits << numBits;
+        break;
+      }
+    case kpidSize:
+      if (!item.IsDir())
+        propVariant = (UInt64)item.Size;
+      break;
+  }
+  propVariant.Detach(value);
+  return S_OK;
+  COM_TRY_END
+}
+
+STDMETHODIMP CHandler::Open(IInStream *inStream, 
+    const UInt64 * /* maxCheckStartPosition */,
+    IArchiveOpenCallback * /* openArchiveCallback */)
+{
+  COM_TRY_BEGIN
+  Close();
+  try
+  {
+    if (OpenArchive(inStream, _db) != S_OK)
+      return S_FALSE;
+    _stream = inStream;
+  }
+  catch(...) { return S_FALSE; }
+  return S_OK;
+  COM_TRY_END
+}
+
+STDMETHODIMP CHandler::Close()
+{
+  _db.Clear();
+  _stream.Release();
+  return S_OK;
+}
+
+STDMETHODIMP CHandler::Extract(const UInt32* indices, UInt32 numItems,
+    Int32 _aTestMode, IArchiveExtractCallback *extractCallback)
+{
+  COM_TRY_BEGIN
+  bool testMode = (_aTestMode != 0);
+  bool allFilesMode = (numItems == UInt32(-1));
+  if (allFilesMode)
+    numItems = _db.Refs.Size();
+  if (numItems == 0)
+    return S_OK;
+  UInt32 i;
+  UInt64 totalSize = 0;
+  for(i = 0; i < numItems; i++)
+  {
+    const CItem &item = _db.Items[_db.Refs[allFilesMode ? i : indices[i]].Did];
+    if (!item.IsDir())
+      totalSize += item.Size;
+  }
+  RINOK(extractCallback->SetTotal(totalSize));
+
+  UInt64 currentTotalSize = 0, currentItemSize = 0;
+  
+  CByteBuffer sect;
+  sect.SetCapacity((UInt32)1 << _db.SectorSizeBits);
+
+  for (i = 0; i < numItems; i++, currentTotalSize += currentItemSize)
+  {
+    RINOK(extractCallback->SetCompleted(&currentTotalSize));
+    Int32 index = allFilesMode ? i : indices[i];
+    const CItem &item = _db.Items[_db.Refs[index].Did];
+    currentItemSize = 0;
+    if (!item.IsDir())
+      currentItemSize = item.Size;
+
+    CMyComPtr<ISequentialOutStream> realOutStream;
+    Int32 askMode = testMode ? 
+        NArchive::NExtract::NAskMode::kTest :
+        NArchive::NExtract::NAskMode::kExtract;
+    RINOK(extractCallback->GetStream(index, &realOutStream, askMode));
+
+    if (item.IsDir())
+    {
+      RINOK(extractCallback->PrepareOperation(askMode));
+      RINOK(extractCallback->SetOperationResult(NArchive::NExtract::NOperationResult::kOK));
+      continue;
+    }
+    if (!testMode && (!realOutStream))
+      continue;
+    RINOK(extractCallback->PrepareOperation(askMode));
+    Int32 res = NArchive::NExtract::NOperationResult::kDataError;
+    {
+      UInt32 sid = item.Sid;
+      UInt64 prev = 0;
+      for (UInt64 pos = 0;;)
+      {
+        if (sid == NFatID::kEndOfChain)
+        {
+          if (pos != item.Size)
+            break;
+          res = NArchive::NExtract::NOperationResult::kOK;
+          break;
+        }
+        if (pos >= item.Size)
+          break;
+          
+        UInt64 offset;
+        UInt32 size;
+
+        if (_db.IsLargeStream(item.Size))
+        {
+          if (pos - prev > (1 << 20))
+          {
+            UInt64 processed = currentTotalSize + pos;
+            RINOK(extractCallback->SetCompleted(&processed));
+            prev = pos;
+          }
+          size = 1 << _db.SectorSizeBits;
+          offset = ((UInt64)sid + 1) << _db.SectorSizeBits;
+          if (sid >= _db.FatSize)
+            break;
+          sid = _db.Fat[sid];
+        }
+        else
+        {
+          int subBits = (_db.SectorSizeBits - _db.MiniSectorSizeBits);
+          UInt32 fid = sid >> subBits;
+          if (fid >= _db.NumSectorsInMiniStream)
+            break;
+          size = 1 << _db.MiniSectorSizeBits;
+          offset = (((UInt64)_db.MiniSids[fid] + 1) << _db.SectorSizeBits) + 
+            ((sid & ((1 << subBits) - 1)) << _db.MiniSectorSizeBits);
+          if (sid >= _db.MatSize)
+            break;
+          sid = _db.Mat[sid];
+        }
+        
+        // last sector can be smaller than sector size (it can contain requied data only).
+        UInt64 rem = item.Size - pos;
+        if (size > rem)
+          size = (UInt32)rem;
+
+        RINOK(_stream->Seek(offset, STREAM_SEEK_SET, NULL));
+        UInt32 realProcessedSize;
+        RINOK(ReadStream(_stream, sect, size, &realProcessedSize));
+        if (realProcessedSize != size)
+          break;
+
+        if (realOutStream)
+        {
+          RINOK(WriteStream(realOutStream, sect, size, &realProcessedSize));
+          if (realProcessedSize != size)
+            break;
+        }
+        pos += size;
+      }
+    }
+    realOutStream.Release();
+    RINOK(extractCallback->SetOperationResult(res));
+  }
+  return S_OK;
+  COM_TRY_END
+}
+
+STDMETHODIMP CHandler::GetNumberOfItems(UInt32 *numItems)
+{
+  *numItems = _db.Refs.Size();
+  return S_OK;
+}
+
+}}
--- a/CPP/7zip/Archive/Com/ComHandler.h
+++ b/CPP/7zip/Archive/Com/ComHandler.h
@@ -0,0 +1,28 @@
+// ComHandler.h
+
+#ifndef __ARCHIVE_COM_HANDLER_H
+#define __ARCHIVE_COM_HANDLER_H
+
+#include "Common/MyCom.h"
+#include "../IArchive.h"
+#include "ComIn.h"
+
+namespace NArchive {
+namespace NCom {
+
+class CHandler: 
+  public IInArchive,
+  public CMyUnknownImp
+{
+public:
+  MY_UNKNOWN_IMP1(IInArchive)
+  INTERFACE_IInArchive(;)
+
+private:
+  CMyComPtr<IInStream> _stream;
+  CDatabase _db;
+};
+
+}}
+
+#endif
--- a/CPP/7zip/Archive/Com/ComIn.cpp
+++ b/CPP/7zip/Archive/Com/ComIn.cpp
@@ -0,0 +1,371 @@
+// Archive/ComIn.cpp
+
+#include "StdAfx.h"
+
+extern "C" 
+{ 
+#include "../../../../C/Alloc.h"
+}
+
+#include "Common/MyCom.h"
+#include "../../Common/StreamUtils.h"
+#include "Common/IntToString.h"
+
+#include "ComIn.h"
+
+namespace NArchive{
+namespace NCom{
+
+static const UInt32 kSignatureSize = 8;
+static const Byte kSignature[kSignatureSize] = { 0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1 };
+
+static HRESULT ReadBytes(ISequentialInStream *inStream, void *data, UInt32 size)
+{
+  UInt32 realProcessedSize;
+  RINOK(ReadStream(inStream, data, size, &realProcessedSize));
+  return (realProcessedSize == size) ? S_OK : S_FALSE;
+}
+
+#ifdef LITTLE_ENDIAN_UNALIGN
+#define GetUi16(p) (*(const UInt16 *)(p))
+#define GetUi32(p) (*(const UInt32 *)(p))
+#else
+#define GetUi16(p) ((p)[0] | ((UInt16)(p)[1] << 8))
+#define GetUi32(p) ((p)[0] | ((UInt32)(p)[1] << 8) | ((UInt32)(p)[2] << 16) | ((UInt32)(p)[3] << 24))
+#endif
+
+
+void CUInt32Buf::Free()
+{
+  MyFree(_buf);
+  _buf = 0;
+}
+
+bool CUInt32Buf::Allocate(UInt32 numItems)
+{
+  Free();
+  if (numItems == 0)
+    return true;
+  size_t newSize = (size_t)numItems * sizeof(UInt32);
+  if (newSize / sizeof(UInt32) != numItems)
+    return false;
+  _buf = (UInt32 *)MyAlloc(newSize);
+  return (_buf != 0);
+}
+
+static HRESULT ReadSector(IInStream *inStream, Byte *buf, int sectorSizeBits, UInt32 sid)
+{
+  RINOK(inStream->Seek((((UInt64)sid + 1) << sectorSizeBits), STREAM_SEEK_SET, NULL));
+  return ReadBytes(inStream, buf, (UInt32)1 << sectorSizeBits);
+}
+
+static HRESULT ReadIDs(IInStream *inStream, Byte *buf, int sectorSizeBits, UInt32 sid, UInt32 *dest)
+{
+  RINOK(ReadSector(inStream, buf, sectorSizeBits, sid));
+  UInt32 sectorSize = (UInt32)1 << sectorSizeBits;
+  for (UInt32 t = 0; t < sectorSize; t += 4)
+    *dest++ = GetUi32(buf + t);
+  return S_OK;
+}
+
+static void GetFileTimeFromMem(const Byte *p, FILETIME *ft)
+{
+  ft->dwLowDateTime = GetUi32(p);
+  ft->dwHighDateTime = GetUi32(p + 4);
+}
+
+static void ReadItem(Byte *p, CItem &item, bool mode64bit)
+{
+  memcpy(item.Name, p, 64);
+  // item.NameSize = GetUi16(p + 64);
+  item.Type = p[66];
+  item.LeftDid = GetUi32(p + 68);
+  item.RightDid = GetUi32(p + 72);
+  item.SonDid = GetUi32(p + 76);
+  // item.Flags = GetUi32(p + 96);
+  GetFileTimeFromMem(p + 100, &item.CreationTime);
+  GetFileTimeFromMem(p + 108, &item.LastWriteTime);
+  item.Sid = GetUi32(p + 116);
+  item.Size = GetUi32(p + 120);
+  if (mode64bit)
+    item.Size |= ((UInt64)GetUi32(p + 124) << 32);
+}
+
+static const UInt32 kNoDid = 0xFFFFFFFF;
+
+HRESULT CDatabase::AddNode(int parent, UInt32 did)
+{
+  if (did == kNoDid)
+    return S_OK;
+  if (did >= (UInt32)Items.Size())
+    return S_FALSE;
+  const CItem &item = Items[did];
+  if (item.IsEmpty())
+    return S_FALSE;
+  CRef ref;
+  ref.Parent = parent;
+  ref.Did = did;
+  int index = Refs.Add(ref);
+  if (Refs.Size() > Items.Size())
+    return S_FALSE;
+  RINOK(AddNode(parent, item.LeftDid));
+  RINOK(AddNode(parent, item.RightDid));
+  if (item.IsDir())
+  {
+    RINOK(AddNode(index, item.SonDid));
+  }
+  return S_OK;
+}
+
+static const char kCharOpenBracket  = '[';
+static const char kCharCloseBracket = ']';
+
+UString DWORDToString(UInt32 val)
+{
+  wchar_t buf[32];
+  ConvertUInt64ToString(val, buf);
+  return buf;
+}
+
+static UString CompoundNameToFileName(const UString &s)
+{
+  UString res;
+  for (int i = 0; i < s.Length(); i++)
+  {
+    wchar_t c = s[i];
+    if (c < 0x20)
+    {
+      res += kCharOpenBracket;
+      res += DWORDToString(c);
+      res += kCharCloseBracket;
+    }
+    else
+      res += c;
+  } 
+  return res;
+}
+
+static char g_MsiChars[] =
+"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz._";
+
+static const wchar_t *kMsi_ID = L""; // L"{msi}";
+
+static const int kMsiNumBits = 6;
+static const UInt32 kMsiNumChars = 1 << kMsiNumBits;
+static const UInt32 kMsiCharMask = kMsiNumChars - 1;
+static const UInt32 kMsiStartUnicodeChar = 0x3800;
+static const UInt32 kMsiUnicodeRange = kMsiNumChars * (kMsiNumChars + 1);
+
+bool CompoundMsiNameToFileName(const UString &name, UString &resultName)
+{
+  resultName.Empty();
+  for (int i = 0; i < name.Length(); i++)
+  {
+    wchar_t c =  name[i];
+    if (c < kMsiStartUnicodeChar || c > kMsiStartUnicodeChar + kMsiUnicodeRange)
+      return false;
+    if (i == 0)
+      resultName += kMsi_ID;
+    c -= kMsiStartUnicodeChar;
+    
+    UInt32 c0 = c & kMsiCharMask;
+    UInt32 c1 = c >> kMsiNumBits;
+
+    if (c1 <= kMsiNumChars)
+    {
+      resultName += (wchar_t)g_MsiChars[c0];
+      if (c1 == kMsiNumChars)
+        break;
+      resultName += (wchar_t)g_MsiChars[c1];
+    }
+    else
+      resultName += L'!';
+  }
+  return true;
+}
+
+static UString ConvertName(const Byte *p)
+{
+  UString s;
+  for (int i = 0; i < kNameSizeMax; i += 2)
+  {
+    wchar_t c = (p[i] | (wchar_t)p[i + 1] << 8);
+    if (c == 0)
+      break;
+    s += c;
+  }
+  UString msiName;
+  if (CompoundMsiNameToFileName(s, msiName))
+    return msiName;
+  return CompoundNameToFileName(s);
+}
+
+UString CDatabase::GetItemPath(UInt32 index) const
+{
+  UString s;
+  while (index != kNoDid)
+  {
+    const CRef &ref = Refs[index];
+    const CItem &item = Items[ref.Did];
+    if (!s.IsEmpty())
+      s = (UString)WCHAR_PATH_SEPARATOR + s;
+    s = ConvertName(item.Name) + s;
+    index = ref.Parent;
+  }
+  return s;
+}
+
+HRESULT OpenArchive(IInStream *inStream, CDatabase &db)
+{
+  static const UInt32 kHeaderSize = 512;
+  Byte p[kHeaderSize];
+  RINOK(ReadBytes(inStream, p, kHeaderSize));
+  if (memcmp(p, kSignature, kSignatureSize) != 0)
+    return S_FALSE;
+  UInt16 majorVer = GetUi16(p + 0x1A);
+  if (majorVer > 4)
+    return S_FALSE;
+  if (GetUi16(p + 0x1C) != 0xFFFE)
+    return S_FALSE;
+  UInt16 sectorSizeBits = GetUi16(p + 0x1E);
+  bool mode64bit = (sectorSizeBits >= 12);
+  UInt16 miniSectorSizeBits = GetUi16(p + 0x20);
+  db.SectorSizeBits = sectorSizeBits;
+  db.MiniSectorSizeBits = miniSectorSizeBits;
+
+  if (sectorSizeBits > 28 || miniSectorSizeBits > 28 || 
+      sectorSizeBits < 7 || miniSectorSizeBits < 2 || miniSectorSizeBits > sectorSizeBits)
+    return S_FALSE;
+  UInt32 numSectorsForFAT = GetUi32(p + 0x2C);
+  db.LongStreamMinSize = GetUi32(p + 0x38);
+  
+  UInt32 sectSize = (UInt32)1 << (int)(sectorSizeBits);
+
+  CByteBuffer sect;
+  sect.SetCapacity(sectSize);
+
+  int ssb2 = (int)(sectorSizeBits - 2);
+  UInt32 numSidsInSec = (UInt32)1 << ssb2;
+  UInt32 numFatItems = numSectorsForFAT << ssb2;
+  if ((numFatItems >> ssb2) != numSectorsForFAT)
+    return S_FALSE;
+  db.FatSize = numFatItems;
+
+  {
+    CUInt32Buf bat;
+    UInt32 numSectorsForBat = GetUi32(p + 0x48);
+    const UInt32 kNumHeaderBatItems = 109;
+    UInt32 numBatItems = kNumHeaderBatItems + (numSectorsForBat << ssb2);
+    if (numBatItems < kNumHeaderBatItems || ((numBatItems - kNumHeaderBatItems) >> ssb2) != numSectorsForBat)
+      return S_FALSE;
+    if (!bat.Allocate(numBatItems))
+      return S_FALSE;
+    UInt32 i;
+    for (i = 0; i < kNumHeaderBatItems; i++)
+      bat[i] = GetUi32(p + 0x4c + i * 4);
+    UInt32 sid = GetUi32(p + 0x44);
+    for (UInt32 s = 0; s < numSectorsForBat; s++)
+    {
+      RINOK(ReadIDs(inStream, sect, sectorSizeBits, sid, bat + i));
+      i += numSidsInSec - 1;
+      sid = bat[i];
+    }
+    numBatItems = i;
+    
+    if (!db.Fat.Allocate(numFatItems))
+      return S_FALSE;
+    UInt32 j = 0;
+      
+    for (i = 0; i < numFatItems; j++, i += numSidsInSec)
+    {
+      if (j >= numBatItems)
+        return S_FALSE;
+      RINOK(ReadIDs(inStream, sect, sectorSizeBits, bat[j], db.Fat + i));
+    }
+  }
+
+  UInt32 numMatItems;
+  {
+    UInt32 numSectorsForMat = GetUi32(p + 0x40);
+    numMatItems = (UInt32)numSectorsForMat << ssb2;
+    if ((numMatItems >> ssb2) != numSectorsForMat)
+      return S_FALSE;
+    if (!db.Mat.Allocate(numMatItems))
+      return S_FALSE;
+    UInt32 i;
+    UInt32 sid = GetUi32(p + 0x3C);
+    for (i = 0; i < numMatItems; i += numSidsInSec)
+    {
+      RINOK(ReadIDs(inStream, sect, sectorSizeBits, sid, db.Mat + i));
+      if (sid >= numFatItems)
+        return S_FALSE;
+      sid = db.Fat[sid];
+    }
+    if (sid != NFatID::kEndOfChain)
+      return S_FALSE;
+  }
+
+  {
+    UInt32 sid = GetUi32(p + 0x30);
+    for (;;)
+    {
+      if (sid >= numFatItems)
+        return S_FALSE;
+      RINOK(ReadSector(inStream, sect, sectorSizeBits, sid));
+      for (UInt32 i = 0; i < sectSize; i += 128)
+      {
+        CItem item;
+        ReadItem(sect + i, item, mode64bit);
+        db.Items.Add(item);
+      }
+      sid = db.Fat[sid];
+      if (sid == NFatID::kEndOfChain)
+        break;
+    }
+  }
+
+  CItem root = db.Items[0];
+
+  {
+    UInt32 numSectorsInMiniStream;
+    {
+      UInt64 numSatSects64 = (root.Size + sectSize - 1) >> sectorSizeBits;
+      if (numSatSects64 > NFatID::kMaxValue)
+        return S_FALSE;
+      numSectorsInMiniStream = (UInt32)numSatSects64;
+    }
+    db.NumSectorsInMiniStream = numSectorsInMiniStream;
+    if (!db.MiniSids.Allocate(numSectorsInMiniStream))
+      return S_FALSE;
+    {
+      UInt64 matSize64 = (root.Size + (1 << miniSectorSizeBits) - 1) >> miniSectorSizeBits;
+      if (matSize64 > NFatID::kMaxValue)
+        return S_FALSE;
+      db.MatSize = (UInt32)matSize64;
+      if (numMatItems < db.MatSize)
+        return S_FALSE;
+    }
+
+
+    UInt32 sid = root.Sid;
+    for (UInt32 i = 0; ; i++)
+    {
+      if (sid == NFatID::kEndOfChain)
+      {
+        if (i != numSectorsInMiniStream)
+          return S_FALSE;
+        break;
+      }
+      if (i >= numSectorsInMiniStream)
+        return S_FALSE;
+      db.MiniSids[i] = sid;
+      if (sid >= numFatItems)
+        return S_FALSE;
+      sid = db.Fat[sid];
+    }
+  }
+
+  return db.AddNode(-1, root.SonDid);
+}
+
+}}
--- a/CPP/7zip/Archive/Com/ComIn.h
+++ b/CPP/7zip/Archive/Com/ComIn.h
@@ -0,0 +1,106 @@
+// Archive/ComIn.h
+
+#ifndef __ARCHIVE_COM_IN_H
+#define __ARCHIVE_COM_IN_H
+
+#include "Common/MyString.h"
+#include "Common/Buffer.h"
+
+namespace NArchive {
+namespace NCom {
+
+struct CUInt32Buf
+{
+  UInt32 *_buf;
+public:
+  CUInt32Buf(): _buf(0) {}
+  ~CUInt32Buf() { Free(); }
+  void Free();
+  bool Allocate(UInt32 numItems);
+  operator UInt32 *() const { return _buf; };
+};
+
+namespace NFatID
+{
+  const UInt32 kFree       = 0xFFFFFFFF;
+  const UInt32 kEndOfChain = 0xFFFFFFFE;
+  const UInt32 kFatSector  = 0xFFFFFFFD;
+  const UInt32 kMatSector  = 0xFFFFFFFC;
+  const UInt32 kMaxValue   = 0xFFFFFFFA;
+}
+
+namespace NItemType
+{
+  const Byte kEmpty = 0;
+  const Byte kStorage = 1;
+  const Byte kStream = 2;
+  const Byte kLockBytes = 3;
+  const Byte kProperty = 4;
+  const Byte kRootStorage = 5;
+}
+
+const UInt32 kNameSizeMax = 64;
+
+struct CItem
+{
+  Byte Name[kNameSizeMax];
+  // UInt16 NameSize;
+  // UInt32 Flags;
+  FILETIME CreationTime;
+  FILETIME LastWriteTime;
+  UInt64 Size;
+  UInt32 LeftDid;
+  UInt32 RightDid;
+  UInt32 SonDid;
+  UInt32 Sid;
+  Byte Type;
+
+  bool IsEmpty() const { return Type == NItemType::kEmpty; }
+  bool IsDir() const { return Type == NItemType::kStorage || Type == NItemType::kRootStorage; }
+};
+
+struct CRef
+{
+  int Parent;
+  UInt32 Did;
+};
+
+class CDatabase
+{
+public:
+  HRESULT AddNode(int parent, UInt32 did);
+
+  CUInt32Buf Fat;
+  UInt32 FatSize;
+  
+  CUInt32Buf MiniSids;
+  UInt32 NumSectorsInMiniStream;
+
+  CUInt32Buf Mat;
+  UInt32 MatSize;
+
+  CObjectVector<CItem> Items;
+  CRecordVector<CRef> Refs;
+
+  UInt32 LongStreamMinSize;
+  int SectorSizeBits;
+  int MiniSectorSizeBits;
+
+  void Clear()
+  {
+    Fat.Free();
+    MiniSids.Free();
+    Mat.Free();
+    Items.Clear();
+    Refs.Clear();
+  }
+
+  bool IsLargeStream(UInt64 size) { return size >= LongStreamMinSize; }
+  UString GetItemPath(UInt32 index) const;
+};
+
+HRESULT OpenArchive(IInStream *inStream, CDatabase &database);
+
+}}
+  
+#endif
--- a/CPP/7zip/Archive/Com/ComRegister.cpp
+++ b/CPP/7zip/Archive/Com/ComRegister.cpp
@@ -0,0 +1,13 @@
+// ComRegister.cpp
+
+#include "StdAfx.h"
+
+#include "../../Common/RegisterArc.h"
+
+#include "ComHandler.h"
+static IInArchive *CreateArc() { return new NArchive::NCom::CHandler;  }
+
+static CArcInfo g_ArcInfo =
+  { L"Com", L"msi doc xls ppt", 0, 0xE5, { 0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1 }, 8, false, CreateArc, 0 };
+
+REGISTER_ARC(Com)
--- a/CPP/7zip/Archive/Wim/WimIn.cpp
+++ b/CPP/7zip/Archive/Wim/WimIn.cpp
@@ -123,7 +123,7 @@ HRESULT CUnpacker::Unpack(IInStream *inStream, const CResource &resource,
    if (outProcessed + outSize > resource.UnpackSize)
      outSize = (UInt32)(resource.UnpackSize - outProcessed);
    UInt64 outSize64 = outSize;
-    lzxDecoderSpec->SetKeepHistory(false, 0);
+    lzxDecoderSpec->SetKeepHistory(false);
    ICompressCoder *coder = (inSize == outSize) ? copyCoder : lzxDecoder;
    RINOK(coder->Code(limitedStreamSpec, outStream, NULL, &outSize64, NULL));
    outProcessed += outSize;
--- a/CPP/7zip/Bundles/Format7zF/Format7z.dsp
+++ b/CPP/7zip/Bundles/Format7zF/Format7z.dsp
@@ -2373,6 +2373,30 @@ SOURCE=..\..\Archive\Wim\WimIn.h
 SOURCE=..\..\Archive\Wim\WimRegister.cpp
 # End Source File
 # End Group
+# Begin Group "Com"
+
+# PROP Default_Filter ""
+# Begin Source File
+
+SOURCE=..\..\Archive\Com\ComHandler.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Archive\Com\ComHandler.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Archive\Com\ComIn.cpp
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Archive\Com\ComIn.h
+# End Source File
+# Begin Source File
+
+SOURCE=..\..\Archive\Com\ComRegister.cpp
+# End Source File
+# End Group
 # Begin Source File

 SOURCE=..\..\Archive\IArchive.h
--- a/CPP/7zip/Bundles/Format7zF/makefile
+++ b/CPP/7zip/Bundles/Format7zF/makefile
@@ -108,6 +108,11 @@ CHM_OBJS = \
  $O\ChmIn.obj \
  $O\ChmRegister.obj \

+COM_OBJS = \
+  $O\ComHandler.obj \
+  $O\ComIn.obj \
+  $O\ComRegister.obj \
+
 CPIO_OBJS = \
  $O\CpioHandler.obj \
  $O\CpioHeader.obj \
@@ -339,6 +344,7 @@ OBJS = \
  $(BZ2_OBJS) \
  $(CAB_OBJS) \
  $(CHM_OBJS) \
+  $(COM_OBJS) \
  $(CPIO_OBJS) \
  $(DEB_OBJS) \
  $(GZ_OBJS) \
@@ -411,6 +417,8 @@ $(CAB_OBJS): ../../Archive/Cab/$(*B).cpp
 	$(COMPL)
 $(CHM_OBJS): ../../Archive/Chm/$(*B).cpp
 	$(COMPL)
+$(COM_OBJS): ../../Archive/Com/$(*B).cpp
+	$(COMPL)
 $(CPIO_OBJS): ../../Archive/Cpio/$(*B).cpp
 	$(COMPL)
 $(DEB_OBJS): ../../Archive/Deb/$(*B).cpp
--- a/CPP/7zip/Common/CreateCoder.h
+++ b/CPP/7zip/Common/CreateCoder.h
@@ -30,7 +30,7 @@ HRESULT LoadExternalCodecs(ICompressCodecsInfo *codecsInfo, CObjectVector<CCodec
 #define DECL_ISetCompressCodecsInfo STDMETHOD(SetCompressCodecsInfo)(ICompressCodecsInfo *compressCodecsInfo);
 #define IMPL_ISetCompressCodecsInfo2(x) \
 STDMETHODIMP x::SetCompressCodecsInfo(ICompressCodecsInfo *compressCodecsInfo) { \
-  _codecsInfo = compressCodecsInfo;  return LoadExternalCodecs(_codecsInfo, _externalCodecs); }
+  COM_TRY_BEGIN _codecsInfo = compressCodecsInfo;  return LoadExternalCodecs(_codecsInfo, _externalCodecs); COM_TRY_END }
 #define IMPL_ISetCompressCodecsInfo IMPL_ISetCompressCodecsInfo2(CHandler)

 #define EXTERNAL_CODECS_VARS2 _codecsInfo, &_externalCodecs
--- a/CPP/7zip/Compress/Lzx/LzxDecoder.cpp
+++ b/CPP/7zip/Compress/Lzx/LzxDecoder.cpp
@@ -1,4 +1,4 @@
-// LzxDecoder.cpp
+	// LzxDecoder.cpp

 #include "StdAfx.h"

@@ -18,7 +18,7 @@ const int kLenIdNeedInit = -2;

 CDecoder::CDecoder(bool wimMode):
  _keepHistory(false),
-  m_AlignPos(0),
+  _skipByte(false),
  _wimMode(wimMode)
 {
  m_x86ConvertOutStreamSpec = new Cx86ConvertOutStream;
@@ -94,6 +94,10 @@ bool CDecoder::ReadTables(void)
 {
  Byte newLevels[kMaxTableSize];
  {
+    if (_skipByte)
+      m_InBitStream.DirectReadByte();
+    m_InBitStream.Normalize();
+
    int blockType = (int)ReadBits(kNumBlockTypeBits);
    if (blockType > kBlockTypeUncompressed)
      return false;
@@ -106,6 +110,9 @@ bool CDecoder::ReadTables(void)
      m_UnCompressedBlockSize = m_InBitStream.ReadBitsBig(kUncompressedBlockSizeNumBits);

    m_IsUncompressedBlock = (blockType == kBlockTypeUncompressed);
+
+    _skipByte = (m_IsUncompressedBlock && ((m_UnCompressedBlockSize & 1) != 0));
+
    if (m_IsUncompressedBlock)
    {
      ReadBits(16 - m_InBitStream.GetBitPosition());
@@ -170,12 +177,12 @@ HRESULT CDecoder::CodeSpec(UInt32 curSize)
  if (_remainLen == kLenIdNeedInit)
  {
    _remainLen = 0;
-    if (_keepHistory && m_IsUncompressedBlock && m_UnCompressedBlockSize > 0)
-      m_InBitStream.InitDirect();
-    else
-      m_InBitStream.InitNormal();
+    m_InBitStream.Init();
+    if (!_keepHistory || !m_IsUncompressedBlock)
+      m_InBitStream.Normalize();
    if (!_keepHistory)
    {
+      _skipByte = false;
      m_UnCompressedBlockSize = 0;
      ClearPrevLevels();
      UInt32 i86TranslationSize = 12000000;
@@ -196,9 +203,6 @@ HRESULT CDecoder::CodeSpec(UInt32 curSize)
    }
  }

-  if (curSize == 0)
-    return S_OK;
-
  while(_remainLen > 0 && curSize > 0)
  {
    m_OutWindowStream.PutByte(m_OutWindowStream.GetByte(m_RepDistances[0]));
@@ -209,8 +213,8 @@ HRESULT CDecoder::CodeSpec(UInt32 curSize)
  while(curSize > 0)
  {
    if (m_UnCompressedBlockSize == 0)
-     if (!ReadTables())
-       return S_FALSE;
+      if (!ReadTables())
+        return S_FALSE;
    UInt32 next = (Int32)MyMin(m_UnCompressedBlockSize, curSize);
    curSize -= next;
    m_UnCompressedBlockSize -= next;
@@ -221,11 +225,6 @@ HRESULT CDecoder::CodeSpec(UInt32 curSize)
        m_OutWindowStream.PutByte(m_InBitStream.DirectReadByte());
        next--;
      }
-      if (m_UnCompressedBlockSize == 0)
-      {
-        m_InBitStream.Align(m_AlignPos);
-        // m_AlignPos = 0;
-      }
    }
    else while(next > 0)
    {
--- a/CPP/7zip/Compress/Lzx/LzxDecoder.h
+++ b/CPP/7zip/Compress/Lzx/LzxDecoder.h
@@ -33,14 +33,7 @@ public:
  void SetStream(ISequentialInStream *s) { m_Stream.SetStream(s); }
  void ReleaseStream() { m_Stream.ReleaseStream(); }

-  void InitNormal()
-  {
-    m_Stream.Init();
-    m_BitPos = kNumBigValueBits; 
-    Normalize();
-  }
-
-  void InitDirect()
+  void Init()
  {
    m_Stream.Init();
    m_BitPos = kNumBigValueBits; 
@@ -100,12 +93,6 @@ public:

  Byte DirectReadByte() { return m_Stream.ReadByte(); }

-  void Align(int alignPos)
-  {
-    if (((m_Stream.GetProcessedSize() + alignPos) & 1) != 0)
-      m_Stream.ReadByte();
-    Normalize();
-  }
 };
 }

@@ -137,7 +124,7 @@ class CDecoder :

  bool _keepHistory;
  int _remainLen;
-  int m_AlignPos;
+  bool _skipByte;

  bool _wimMode;

@@ -171,11 +158,7 @@ public:
  STDMETHOD(SetOutStreamSize)(const UInt64 *outSize);

  HRESULT SetParams(int numDictBits);
-  void SetKeepHistory(bool keepHistory, int alignPos)
-  {
-    _keepHistory = keepHistory;
-    m_AlignPos = alignPos;
-  }
+  void SetKeepHistory(bool keepHistory) {  _keepHistory = keepHistory; }
 };

 }}
--- a/CPP/7zip/FileManager/PanelItemOpen.cpp
+++ b/CPP/7zip/FileManager/PanelItemOpen.cpp
@@ -143,15 +143,11 @@ HRESULT CPanel::OpenParentArchiveFolder()

 static const wchar_t *kStartExtensions[] = 
 {
-  L"exe",
-  L"bat",
-  L"com",
+  L"exe", L"bat", L"com",
  L"chm",
-  L"msi",
-  L"doc",
-  L"odt",
-  L"pdf",
-  L"xls"
+  L"msi", L"doc", L"xls", L"ppt", 
+  L"odt", L"ods",
+  L"pdf"
 };

 static bool DoItemAlwaysStart(const UString &name)
--- a/CPP/7zip/Guid.txt
+++ b/CPP/7zip/Guid.txt
@@ -121,6 +121,7 @@ Handler GUIDs:
 09 Nsis
 0A Lzma

+E5 Compound
 E6 Wim
 E7 Iso
 E8 Bkf
--- a/CPP/7zip/MyVersion.h
+++ b/CPP/7zip/MyVersion.h
@@ -1,8 +1,8 @@
 #define MY_VER_MAJOR 4
-#define MY_VER_MINOR 51
+#define MY_VER_MINOR 52
 #define MY_VER_BUILD 0
-#define MY_VERSION "4.51 beta"
-#define MY_7ZIP_VERSION "7-Zip 4.51 beta"
-#define MY_DATE "2007-07-25"
+#define MY_VERSION "4.52 beta"
+#define MY_7ZIP_VERSION "7-Zip 4.52 beta"
+#define MY_DATE "2007-08-03"
 #define MY_COPYRIGHT "Copyright (c) 1999-2007 Igor Pavlov"
 #define MY_VERSION_COPYRIGHT_DATE MY_VERSION "  " MY_COPYRIGHT "  " MY_DATE
--- a/CPP/7zip/UI/Common/ArchiveExtractCallback.cpp
+++ b/CPP/7zip/UI/Common/ArchiveExtractCallback.cpp
@@ -101,7 +101,7 @@ HRESULT CArchiveExtractCallback::GetTime(int index, PROPID propID, FILETIME &fil
  if (prop.vt == VT_FILETIME)
  {
    filetime = prop.filetime;
-    filetimeIsDefined = true;
+    filetimeIsDefined = (filetime.dwHighDateTime != 0 || filetime.dwLowDateTime != 0);
  }
  else if (prop.vt != VT_EMPTY)
    return E_FAIL;
--- a/CPP/7zip/UI/Common/ExtractingFilePath.cpp
+++ b/CPP/7zip/UI/Common/ExtractingFilePath.cpp
@@ -70,12 +70,9 @@ static bool IsSupportedName(const UString &name)

 static UString GetCorrectFileName(const UString &path)
 {
-  UString result = path;
-  UString test = path;
-  // test.Trim();
-  if (test == L"..")
-    result.Replace(L"..", L"");
-  return ReplaceIncorrectChars(result);
+  if (path == L".." || path == L".")
+    return UString();
+  return ReplaceIncorrectChars(path);
 }

 void MakeCorrectPath(UStringVector &pathParts)
--- a/CPP/7zip/UI/GUI/CompressDialog.cpp
+++ b/CPP/7zip/UI/GUI/CompressDialog.cpp
@@ -309,6 +309,7 @@ bool CCompressDialog::OnInit()
  OnButtonSFX();

  SetEncryptionMethod();
+  SetMemoryUsage();
  return CModalDialog::OnInit();
 }

@@ -350,6 +351,7 @@ bool CCompressDialog::OnButtonClicked(int buttonID, HWND buttonHWND)
    case IDC_COMPRESS_SFX:
    {
      OnButtonSFX();
+      SetMemoryUsage();
      return true;
    }
    case IDC_COMPRESS_CHECK_SHOW_PASSWORD:
@@ -604,7 +606,16 @@ bool CCompressDialog::OnCommand(int code, int itemID, LPARAM lParam)
    {
      case IDC_COMPRESS_COMBO_FORMAT:
      {
-        OnChangeFormat();
+        bool isSFX = IsSFX();
+        SaveOptionsInMem();
+        SetLevel();
+        SetSolidBlockSize();
+        SetNumThreads();
+        SetParams();
+        CheckControlsEnable();
+        SetArchiveName2(isSFX);
+        SetEncryptionMethod();
+        SetMemoryUsage();
        return true;
      }
      case IDC_COMPRESS_COMBO_LEVEL:
@@ -617,6 +628,7 @@ bool CCompressDialog::OnCommand(int code, int itemID, LPARAM lParam)
        SetSolidBlockSize();
        SetNumThreads();
        CheckSFXNameChange();
+        SetMemoryUsage();
        return true;
      }
      case IDC_COMPRESS_COMBO_METHOD:
@@ -626,6 +638,7 @@ bool CCompressDialog::OnCommand(int code, int itemID, LPARAM lParam)
        SetSolidBlockSize();
        SetNumThreads();
        CheckSFXNameChange();
+        SetMemoryUsage();
        return true;
      }
      case IDC_COMPRESS_COMBO_DICTIONARY:
@@ -673,19 +686,6 @@ void CCompressDialog::SetArchiveName2(bool prevWasSFX)
  SetArchiveName(fileName);
 }

-void CCompressDialog::OnChangeFormat() 
-{
-  bool isSFX = IsSFX();
-  SaveOptionsInMem();
-  SetLevel();
-  SetSolidBlockSize();
-  SetNumThreads();
-  SetParams();
-  CheckControlsEnable();
-  SetArchiveName2(isSFX);
-  SetEncryptionMethod();
-}
-
 // if type.KeepName then use OriginalFileName
 // else if !KeepName remove extension
 // add new extension
@@ -939,10 +939,7 @@ void CCompressDialog::SetDictionary()
  int methodID = GetMethodID();
  UInt32 level = GetLevel2();
  if (methodID < 0)
-  {
-    SetMemoryUsage();
    return;
-  }
  const UInt64 maxRamSize = GetMaxRamSizeForProgram();
  switch (methodID)
  {
@@ -1042,7 +1039,6 @@ void CCompressDialog::SetDictionary()
      break;
    }
  }
-  SetMemoryUsage();
 }

 UInt32 CCompressDialog::GetComboValue(NWindows::NControl::CComboBox &c, int defMax)
@@ -1084,10 +1080,7 @@ void CCompressDialog::SetOrder()
  int methodID = GetMethodID();
  UInt32 level = GetLevel2();
  if (methodID < 0)
-  {
-    SetMemoryUsage();
    return;
-  }
  switch (methodID)
  {
    case kLZMA:
@@ -1161,7 +1154,6 @@ void CCompressDialog::SetOrder()
      break;
    }
  }
-  SetMemoryUsage();
 }

 bool CCompressDialog::GetOrderMode()
--- a/CPP/7zip/UI/GUI/CompressDialog.h
+++ b/CPP/7zip/UI/GUI/CompressDialog.h
@@ -98,7 +98,6 @@ class CCompressDialog: public NWindows::NControl::CModalDialog
  int FindRegistryFormat(const UString &name);
  int FindRegistryFormatAlways(const UString &name);
  
-  void OnChangeFormat();
  void CheckSFXNameChange();
  void SetArchiveName2(bool prevWasSFX);
  
--- a/CPP/Common/MyVector.cpp
+++ b/CPP/Common/MyVector.cpp
@@ -6,8 +6,7 @@

 #include "MyVector.h"

-CBaseRecordVector::~CBaseRecordVector()
-  { Free(); }
+CBaseRecordVector::~CBaseRecordVector() { Free(); }

 void CBaseRecordVector::Free()
 { 
@@ -17,16 +16,13 @@ void CBaseRecordVector::Free()
  _items = 0;
 }

-void CBaseRecordVector::Clear() 
-  { DeleteFrom(0); }
-void CBaseRecordVector::DeleteBack() 
-  { Delete(_size - 1); }
-void CBaseRecordVector::DeleteFrom(int index)
-  { Delete(index, _size - index); }
+void CBaseRecordVector::Clear() { DeleteFrom(0); }
+void CBaseRecordVector::DeleteBack() { Delete(_size - 1); }
+void CBaseRecordVector::DeleteFrom(int index) { Delete(index, _size - index); }

 void CBaseRecordVector::ReserveOnePosition()
 {
-  if(_size != _capacity)
+  if (_size != _capacity)
    return;
  int delta;
  if (_capacity > 64)
@@ -40,17 +36,16 @@ void CBaseRecordVector::ReserveOnePosition()

 void CBaseRecordVector::Reserve(int newCapacity)
 {
-  if(newCapacity <= _capacity)
+  if (newCapacity <= _capacity)
    return;
-  /*
-  #ifndef _DEBUG
-  static const unsigned int kMaxVectorSize = 0xF0000000;
-  if(newCapacity < _size || 
-      ((unsigned int )newCapacity * (unsigned int )_itemSize) > kMaxVectorSize) 
+  if ((unsigned)newCapacity >= ((unsigned)1 << (sizeof(unsigned) * 8 - 1)))
+    throw 1052353;
+  size_t newSize = (size_t)(unsigned)newCapacity * _itemSize;
+  if (newSize / _itemSize != (size_t)(unsigned)newCapacity)
    throw 1052354;
-  #endif
-  */
-  unsigned char *p = new unsigned char[newCapacity * _itemSize];
+  unsigned char *p = new unsigned char[newSize];
+  if (p == 0)
+    throw 1052355;
  int numRecordsToMove = _capacity;
  memmove(p, _items, _itemSize * numRecordsToMove);
  delete [](unsigned char *)_items;
--- a/CPP/Windows/FileDir.cpp
+++ b/CPP/Windows/FileDir.cpp
@@ -214,9 +214,12 @@ bool MyCreateDirectory(LPCTSTR pathName)
  if (::CreateDirectory(pathName, NULL))
    return true;
  #ifdef WIN_LONG_PATH2
-  UString longPath;
-  if (GetLongPath(pathName, longPath))
-    return BOOLToBool(::CreateDirectoryW(longPath, NULL));
+  if (::GetLastError() != ERROR_ALREADY_EXISTS)
+  {
+    UString longPath;
+    if (GetLongPath(pathName, longPath))
+      return BOOLToBool(::CreateDirectoryW(longPath, NULL));
+  }
  #endif
  return false;
 }
@@ -227,11 +230,14 @@ bool MyCreateDirectory(LPCWSTR pathName)
  if (!g_IsNT)
    return MyCreateDirectory(GetSysPath(pathName));
  if (::CreateDirectoryW(pathName, NULL))
-    return  true;
+    return true;
  #ifdef WIN_LONG_PATH
-  UString longPath;
-  if (GetLongPath(pathName, longPath))
-    return BOOLToBool(::CreateDirectoryW(longPath, NULL));
+  if (::GetLastError() != ERROR_ALREADY_EXISTS)
+  {
+    UString longPath;
+    if (GetLongPath(pathName, longPath))
+      return BOOLToBool(::CreateDirectoryW(longPath, NULL));
+  }
  #endif
  return false;
 }
--- a/DOC/7zip.nsi
+++ b/DOC/7zip.nsi
@@ -2,7 +2,7 @@
 ;Defines

 !define VERSION_MAJOR 4
-!define VERSION_MINOR 51
+!define VERSION_MINOR 52
 !define VERSION_POSTFIX_FULL " beta"
 !ifdef WIN64
 !ifdef IA64
--- a/DOC/7zip.wxs
+++ b/DOC/7zip.wxs
@@ -1,7 +1,7 @@
 <?xml version="1.0"?>

 <?define VerMajor = "4" ?>
-<?define VerMinor = "51" ?>
+<?define VerMinor = "52" ?>
 <?define VerBuild = "00" ?>
 <?define MmVer = "$(var.VerMajor).$(var.VerMinor)" ?>
 <?define MmHex = "0$(var.VerMajor)$(var.VerMinor)" ?>
@@ -214,7 +214,6 @@
          <Component Id="Docs" Guid="$(var.CompDocs)" DiskId="1" Win64="$(var.Is64)">
            <File Id="copying.txt" Name="copying.txt" />
            <File Id="descript.ion" Name="descript.ion" />
-            <File Id="file_id.diz" Name="file_id.diz" />
            <File Id="History.txt" Name="History.txt" />
            <File Id="License.txt" Name="License.txt" />
            <File Id="readme.txt" Name="readme.txt" />
--- a/DOC/readme.txt
+++ b/DOC/readme.txt
@@ -1,4 +1,4 @@
-7-Zip 4.51 Sources
+7-Zip 4.52 Sources
 ------------------

 7-Zip is a file archiver for Windows 95/98/ME/NT/2000/2003/XP/Vista.