1 files changed, 422 insertions, 0 deletions
diff --git a/src/libs/7zip/win/CPP/7zip/Common/FileStreams.cpp b/src/libs/7zip/win/CPP/7zip/Common/FileStreams.cpp
new file mode 100644
index 000000000..426a0d3d6
--- /dev/null
+++ b/src/libs/7zip/win/CPP/7zip/Common/FileStreams.cpp
@@ -0,0 +1,422 @@
+// FileStreams.cpp
+
+#include "StdAfx.h"
+
+#ifndef _WIN32
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#endif
+
+#ifdef SUPPORT_DEVICE_FILE
+#include "../../../C/Alloc.h"
+#include "../../Common/Defs.h"
+#endif
+
+#include "FileStreams.h"
+
+static inline HRESULT ConvertBoolToHRESULT(bool result)
+{
+  #ifdef _WIN32
+  if (result)
+    return S_OK;
+  DWORD lastError = ::GetLastError();
+  if (lastError == 0)
+    return E_FAIL;
+  return HRESULT_FROM_WIN32(lastError);
+  #else
+  return result ? S_OK: E_FAIL;
+  #endif
+}
+
+bool CInFileStream::Open(LPCTSTR fileName)
+{
+  return File.Open(fileName);
+}
+
+#ifdef USE_WIN_FILE
+#ifndef _UNICODE
+bool CInFileStream::Open(LPCWSTR fileName)
+{
+  return File.Open(fileName);
+}
+#endif
+#endif
+
+bool CInFileStream::OpenShared(LPCTSTR fileName, bool shareForWrite)
+{
+  return File.OpenShared(fileName, shareForWrite);
+}
+
+#ifdef USE_WIN_FILE
+#ifndef _UNICODE
+bool CInFileStream::OpenShared(LPCWSTR fileName, bool shareForWrite)
+{
+  return File.OpenShared(fileName, shareForWrite);
+}
+#endif
+#endif
+
+#ifdef SUPPORT_DEVICE_FILE
+
+static const UInt32 kClusterSize = 1 << 18;
+CInFileStream::CInFileStream():
+  VirtPos(0),
+  PhyPos(0),
+  Buffer(0),
+  BufferSize(0)
+{
+}
+
+#endif
+
+CInFileStream::~CInFileStream()
+{
+  #ifdef SUPPORT_DEVICE_FILE
+  MidFree(Buffer);
+  #endif
+}
+
+STDMETHODIMP CInFileStream::Read(void *data, UInt32 size, UInt32 *processedSize)
+{
+  #ifdef USE_WIN_FILE
+  
+  #ifdef SUPPORT_DEVICE_FILE
+  if (processedSize != NULL)
+    *processedSize = 0;
+  if (size == 0)
+    return S_OK;
+  if (File.IsDeviceFile)
+  {
+    if (File.LengthDefined)
+    {
+      if (VirtPos >= File.Length)
+        return VirtPos == File.Length ? S_OK : E_FAIL;
+      UInt64 rem = File.Length - VirtPos;
+      if (size > rem)
+        size = (UInt32)rem;
+    }
+    for (;;)
+    {
+      const UInt32 mask = kClusterSize - 1;
+      UInt64 mask2 = ~(UInt64)mask;
+      UInt64 alignedPos = VirtPos & mask2;
+      if (BufferSize > 0 && BufferStartPos == alignedPos)
+      {
+        UInt32 pos = (UInt32)VirtPos & mask;
+        if (pos >= BufferSize)
+          return S_OK;
+        UInt32 rem = MyMin(BufferSize - pos, size);
+        memcpy(data, Buffer + pos, rem);
+        VirtPos += rem;
+        if (processedSize != NULL)
+          *processedSize += rem;
+        return S_OK;
+      }
+      
+      bool useBuffer = false;
+      if ((VirtPos & mask) != 0 || ((ptrdiff_t)data & mask) != 0 )
+        useBuffer = true;
+      else
+      {
+        UInt64 end = VirtPos + size;
+        if ((end & mask) != 0)
+        {
+          end &= mask2;
+          if (end <= VirtPos)
+            useBuffer = true;
+          else
+            size = (UInt32)(end - VirtPos);
+        }
+      }
+      if (!useBuffer)
+        break;
+      if (alignedPos != PhyPos)
+      {
+        UInt64 realNewPosition;
+        bool result = File.Seek(alignedPos, FILE_BEGIN, realNewPosition);
+        if (!result)
+          return ConvertBoolToHRESULT(result);
+        PhyPos = realNewPosition;
+      }
+
+      BufferStartPos = alignedPos;
+      UInt32 readSize = kClusterSize;
+      if (File.LengthDefined)
+        readSize = (UInt32)MyMin(File.Length - PhyPos, (UInt64)kClusterSize);
+
+      if (Buffer == 0)
+      {
+        Buffer = (Byte *)MidAlloc(kClusterSize);
+        if (Buffer == 0)
+          return E_OUTOFMEMORY;
+      }
+      bool result = File.Read1(Buffer, readSize, BufferSize);
+      if (!result)
+        return ConvertBoolToHRESULT(result);
+
+      if (BufferSize == 0)
+        return S_OK;
+      PhyPos += BufferSize;
+    }
+
+    if (VirtPos != PhyPos)
+    {
+      UInt64 realNewPosition;
+      bool result = File.Seek(VirtPos, FILE_BEGIN, realNewPosition);
+      if (!result)
+        return ConvertBoolToHRESULT(result);
+      PhyPos = VirtPos = realNewPosition;
+    }
+  }
+  #endif
+
+  UInt32 realProcessedSize;
+  bool result = File.ReadPart(data, size, realProcessedSize);
+  if (processedSize != NULL)
+    *processedSize = realProcessedSize;
+  #ifdef SUPPORT_DEVICE_FILE
+  VirtPos += realProcessedSize;
+  PhyPos += realProcessedSize;
+  #endif
+  return ConvertBoolToHRESULT(result);
+  
+  #else
+  
+  if (processedSize != NULL)
+    *processedSize = 0;
+  ssize_t res = File.Read(data, (size_t)size);
+  if (res == -1)
+    return E_FAIL;
+  if (processedSize != NULL)
+    *processedSize = (UInt32)res;
+  return S_OK;
+
+  #endif
+}
+
+#ifdef UNDER_CE
+STDMETHODIMP CStdInFileStream::Read(void *data, UInt32 size, UInt32 *processedSize)
+{
+  size_t s2 = fread(data, 1, size, stdout);
+  if (processedSize != 0)
+    *processedSize = s2;
+  return (s2 = size) ? S_OK : E_FAIL;
+}
+#else
+STDMETHODIMP CStdInFileStream::Read(void *data, UInt32 size, UInt32 *processedSize)
+{
+  #ifdef _WIN32
+  
+  DWORD realProcessedSize;
+  UInt32 sizeTemp = (1 << 20);
+  if (sizeTemp > size)
+    sizeTemp = size;
+  BOOL res = ::ReadFile(GetStdHandle(STD_INPUT_HANDLE), data, sizeTemp, &realProcessedSize, NULL);
+  if (processedSize != NULL)
+    *processedSize = realProcessedSize;
+  if (res == FALSE && GetLastError() == ERROR_BROKEN_PIPE)
+    return S_OK;
+  return ConvertBoolToHRESULT(res != FALSE);
+  
+  #else
+
+  if (processedSize != NULL)
+    *processedSize = 0;
+  ssize_t res;
+  do
+  {
+    res = read(0, data, (size_t)size);
+  }
+  while (res < 0 && (errno == EINTR));
+  if (res == -1)
+    return E_FAIL;
+  if (processedSize != NULL)
+    *processedSize = (UInt32)res;
+  return S_OK;
+  
+  #endif
+}
+  
+#endif
+
+STDMETHODIMP CInFileStream::Seek(Int64 offset, UInt32 seekOrigin,
+    UInt64 *newPosition)
+{
+  if (seekOrigin >= 3)
+    return STG_E_INVALIDFUNCTION;
+
+  #ifdef USE_WIN_FILE
+
+  #ifdef SUPPORT_DEVICE_FILE
+  if (File.IsDeviceFile)
+  {
+    UInt64 newVirtPos = offset;
+    switch(seekOrigin)
+    {
+      case STREAM_SEEK_SET: break;
+      case STREAM_SEEK_CUR: newVirtPos += VirtPos; break;
+      case STREAM_SEEK_END: newVirtPos += File.Length; break;
+      default: return STG_E_INVALIDFUNCTION;
+    }
+    VirtPos = newVirtPos;
+    if (newPosition)
+      *newPosition = newVirtPos;
+    return S_OK;
+  }
+  #endif
+  
+  UInt64 realNewPosition;
+  bool result = File.Seek(offset, seekOrigin, realNewPosition);
+  
+  #ifdef SUPPORT_DEVICE_FILE
+  PhyPos = VirtPos = realNewPosition;
+  #endif
+
+  if (newPosition != NULL)
+    *newPosition = realNewPosition;
+  return ConvertBoolToHRESULT(result);
+  
+  #else
+  
+  off_t res = File.Seek(offset, seekOrigin);
+  if (res == -1)
+    return E_FAIL;
+  if (newPosition != NULL)
+    *newPosition = (UInt64)res;
+  return S_OK;
+  
+  #endif
+}
+
+STDMETHODIMP CInFileStream::GetSize(UInt64 *size)
+{
+  return ConvertBoolToHRESULT(File.GetLength(*size));
+}
+
+
+//////////////////////////
+// COutFileStream
+
+HRESULT COutFileStream::Close()
+{
+  return ConvertBoolToHRESULT(File.Close());
+}
+
+STDMETHODIMP COutFileStream::Write(const void *data, UInt32 size, UInt32 *processedSize)
+{
+  #ifdef USE_WIN_FILE
+
+  UInt32 realProcessedSize;
+  bool result = File.WritePart(data, size, realProcessedSize);
+  ProcessedSize += realProcessedSize;
+  if (processedSize != NULL)
+    *processedSize = realProcessedSize;
+  return ConvertBoolToHRESULT(result);
+  
+  #else
+  
+  if (processedSize != NULL)
+    *processedSize = 0;
+  ssize_t res = File.Write(data, (size_t)size);
+  if (res == -1)
+    return E_FAIL;
+  if (processedSize != NULL)
+    *processedSize = (UInt32)res;
+  ProcessedSize += res;
+  return S_OK;
+  
+  #endif
+}
+  
+STDMETHODIMP COutFileStream::Seek(Int64 offset, UInt32 seekOrigin, UInt64 *newPosition)
+{
+  if (seekOrigin >= 3)
+    return STG_E_INVALIDFUNCTION;
+  #ifdef USE_WIN_FILE
+
+  UInt64 realNewPosition;
+  bool result = File.Seek(offset, seekOrigin, realNewPosition);
+  if (newPosition != NULL)
+    *newPosition = realNewPosition;
+  return ConvertBoolToHRESULT(result);
+  
+  #else
+  
+  off_t res = File.Seek(offset, seekOrigin);
+  if (res == -1)
+    return E_FAIL;
+  if (newPosition != NULL)
+    *newPosition = (UInt64)res;
+  return S_OK;
+  
+  #endif
+}
+
+STDMETHODIMP COutFileStream::SetSize(UInt64 newSize)
+{
+  #ifdef USE_WIN_FILE
+  UInt64 currentPos;
+  if (!File.Seek(0, FILE_CURRENT, currentPos))
+    return E_FAIL;
+  bool result = File.SetLength(newSize);
+  UInt64 currentPos2;
+  result = result && File.Seek(currentPos, currentPos2);
+  return result ? S_OK : E_FAIL;
+  #else
+  return E_FAIL;
+  #endif
+}
+
+#ifdef UNDER_CE
+STDMETHODIMP CStdOutFileStream::Write(const void *data, UInt32 size, UInt32 *processedSize)
+{
+  size_t s2 = fwrite(data, 1, size, stdout);
+  if (processedSize != 0)
+    *processedSize = s2;
+  return (s2 = size) ? S_OK : E_FAIL;
+}
+#else
+STDMETHODIMP CStdOutFileStream::Write(const void *data, UInt32 size, UInt32 *processedSize)
+{
+  if (processedSize != NULL)
+    *processedSize = 0;
+
+  #ifdef _WIN32
+  UInt32 realProcessedSize;
+  BOOL res = TRUE;
+  if (size > 0)
+  {
+    // Seems that Windows doesn't like big amounts writing to stdout.
+    // So we limit portions by 32KB.
+    UInt32 sizeTemp = (1 << 15);
+    if (sizeTemp > size)
+      sizeTemp = size;
+    res = ::WriteFile(GetStdHandle(STD_OUTPUT_HANDLE),
+        data, sizeTemp, (DWORD *)&realProcessedSize, NULL);
+    size -= realProcessedSize;
+    data = (const void *)((const Byte *)data + realProcessedSize);
+    if (processedSize != NULL)
+      *processedSize += realProcessedSize;
+  }
+  return ConvertBoolToHRESULT(res != FALSE);
+
+  #else
+  
+  ssize_t res;
+  do
+  {
+    res = write(1, data, (size_t)size);
+  }
+  while (res < 0 && (errno == EINTR));
+  if (res == -1)
+    return E_FAIL;
+  if (processedSize != NULL)
+    *processedSize = (UInt32)res;
+  return S_OK;
+  
+  return S_OK;
+  #endif
+}
+
+#endif