1 files changed, 0 insertions, 189 deletions
diff --git a/src/libs/7zip/unix/CPP/7zip/Archive/Cab/CabBlockInStream.cpp b/src/libs/7zip/unix/CPP/7zip/Archive/Cab/CabBlockInStream.cpp
deleted file mode 100644
index 12c73eb5f..000000000
--- a/src/libs/7zip/unix/CPP/7zip/Archive/Cab/CabBlockInStream.cpp
+++ /dev/null
@@ -1,189 +0,0 @@
-// CabBlockInStream.cpp
-
-#include "StdAfx.h"
-
-#include "../../../../C/Alloc.h"
-
-#include "Common/Defs.h"
-
-#include "../../Common/StreamUtils.h"
-
-#include "CabBlockInStream.h"
-
-namespace NArchive {
-namespace NCab {
-
-static const UInt32 kBlockSize = (1 << 16);
-
-bool CCabBlockInStream::Create()
-{
-  if (!_buffer)
-    _buffer = (Byte *)::MyAlloc(kBlockSize);
-  return (_buffer != 0);
-}
-
-CCabBlockInStream::~CCabBlockInStream()
-{
-  MyFree(_buffer);
-}
-
-class CCheckSum2
-{
-  UInt32 m_Value;
-  int m_Pos;
-  Byte m_Hist[4];
-public:
-  CCheckSum2(): m_Value(0){};
-  void Init() { m_Value = 0;  m_Pos = 0; }
-  void Update(const void *data, UInt32 size);
-  void FinishDataUpdate()
-  {
-    for (int i = 0; i < m_Pos; i++)
-      m_Value ^= ((UInt32)(m_Hist[i])) << (8 * (m_Pos - i - 1));
-  }
-  void UpdateUInt32(UInt32 v) { m_Value ^= v; }
-  UInt32 GetResult() const {  return m_Value; }
-};
-
-void CCheckSum2::Update(const void *data, UInt32 size)
-{
-  UInt32 checkSum = m_Value;
-  const Byte *dataPointer = (const Byte *)data;
-
-  while (size != 0 && m_Pos != 0)
-  {
-    m_Hist[m_Pos] = *dataPointer++;
-    m_Pos = (m_Pos + 1) & 3;
-    size--;
-    if (m_Pos == 0)
-      for (int i = 0; i < 4; i++)
-        checkSum ^= ((UInt32)m_Hist[i]) << (8 * i);
-  }
-
-  int numWords = size / 4;
-  
-  while (numWords-- != 0)
-  {
-    UInt32 temp = *dataPointer++;
-    temp |= ((UInt32)(*dataPointer++)) <<  8;
-    temp |= ((UInt32)(*dataPointer++)) << 16;
-    temp |= ((UInt32)(*dataPointer++)) << 24;
-    checkSum ^= temp;
-  }
-  m_Value = checkSum;
-
-  size &= 3;
-  
-  while (size != 0)
-  {
-    m_Hist[m_Pos] = *dataPointer++;
-    m_Pos = (m_Pos + 1) & 3;
-    size--;
-  }
-}
-
-static const UInt32 kDataBlockHeaderSize = 8;
-
-class CTempCabInBuffer2
-{
-public:
-  Byte Buffer[kDataBlockHeaderSize];
-  UInt32 Pos;
-  Byte ReadByte()
-  {
-    return Buffer[Pos++];
-  }
-  UInt32 ReadUInt32()
-  {
-    UInt32 value = 0;
-    for (int i = 0; i < 4; i++)
-      value |= (((UInt32)ReadByte()) << (8 * i));
-    return value;
-  }
-  UInt16 ReadUInt16()
-  {
-    UInt16 value = 0;
-    for (int i = 0; i < 2; i++)
-      value |= (((UInt16)ReadByte()) << (8 * i));
-    return value;
-  }
-};
-
-HRESULT CCabBlockInStream::PreRead(UInt32 &packSize, UInt32 &unpackSize)
-{
-  CTempCabInBuffer2 inBuffer;
-  inBuffer.Pos = 0;
-  RINOK(ReadStream_FALSE(_stream, inBuffer.Buffer, kDataBlockHeaderSize))
-
-  UInt32 checkSum = inBuffer.ReadUInt32();
-  packSize = inBuffer.ReadUInt16();
-  unpackSize = inBuffer.ReadUInt16();
-  if (ReservedSize != 0)
-  {
-    RINOK(ReadStream_FALSE(_stream, _buffer, ReservedSize));
-  }
-  _pos = 0;
-  CCheckSum2 checkSumCalc;
-  checkSumCalc.Init();
-  UInt32 packSize2 = packSize;
-  if (MsZip && _size == 0)
-  {
-    if (packSize < 2)
-      return S_FALSE; // bad block;
-    Byte sig[2];
-    RINOK(ReadStream_FALSE(_stream, sig, 2));
-    if (sig[0] != 0x43 || sig[1] != 0x4B)
-      return S_FALSE;
-    packSize2 -= 2;
-    checkSumCalc.Update(sig, 2);
-  }
-
-  if (kBlockSize - _size < packSize2)
-    return S_FALSE;
-
-  UInt32 curSize = packSize2;
-  if (curSize != 0)
-  {
-    size_t processedSizeLoc = curSize;
-    RINOK(ReadStream(_stream, _buffer + _size, &processedSizeLoc));
-    checkSumCalc.Update(_buffer + _size, (UInt32)processedSizeLoc);
-    _size += (UInt32)processedSizeLoc;
-    if (processedSizeLoc != curSize)
-      return S_FALSE;
-  }
-  TotalPackSize = _size;
-
-  checkSumCalc.FinishDataUpdate();
-  
-  bool dataError;
-  if (checkSum == 0)
-    dataError = false;
-  else
-  {
-    checkSumCalc.UpdateUInt32(packSize | (((UInt32)unpackSize) << 16));
-    dataError = (checkSumCalc.GetResult() != checkSum);
-  }
-  DataError |= dataError;
-  return dataError ? S_FALSE : S_OK;
-}
-
-STDMETHODIMP CCabBlockInStream::Read(void *data, UInt32 size, UInt32 *processedSize)
-{
-  if (processedSize != 0)
-    *processedSize = 0;
-  if (size == 0)
-    return S_OK;
-  if (_size != 0)
-  {
-    size = MyMin(_size, size);
-    memmove(data, _buffer + _pos, size);
-    _pos += size;
-    _size -= size;
-    if (processedSize != 0)
-      *processedSize = size;
-    return S_OK;
-  }
-  return S_OK; // no blocks data
-}
-
-}}