1 files changed, 245 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/Windows/FileIO.cpp b/other-licenses/7zstub/src/Windows/FileIO.cpp
new file mode 100644
index 0000000000..20b5fc1594
--- /dev/null
+++ b/other-licenses/7zstub/src/Windows/FileIO.cpp
@@ -0,0 +1,245 @@
+// Windows/FileIO.cpp
+
+#include "StdAfx.h"
+
+#include "FileIO.h"
+#include "Defs.h"
+#ifndef _UNICODE
+#include "../Common/StringConvert.h"
+#endif
+
+#ifndef _UNICODE
+extern bool g_IsNT;
+#endif
+
+namespace NWindows {
+namespace NFile {
+namespace NIO {
+
+CFileBase::~CFileBase() { Close(); }
+
+bool CFileBase::Create(LPCTSTR fileName, DWORD desiredAccess,
+    DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes)
+{
+  Close();
+  _handle = ::CreateFile(fileName, desiredAccess, shareMode, 
+      (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, 
+      flagsAndAttributes, (HANDLE) NULL);
+  return (_fileIsOpen = (_handle != INVALID_HANDLE_VALUE));
+}
+
+#ifndef _UNICODE
+bool CFileBase::Create(LPCWSTR fileName, DWORD desiredAccess,
+    DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes)
+{
+  if (g_IsNT)
+  {
+    Close();
+    _handle = ::CreateFileW(fileName, desiredAccess, shareMode, 
+      (LPSECURITY_ATTRIBUTES)NULL, creationDisposition, 
+      flagsAndAttributes, (HANDLE) NULL);
+    return (_fileIsOpen = (_handle != INVALID_HANDLE_VALUE));
+  }
+  return Create(UnicodeStringToMultiByte(fileName, ::AreFileApisANSI() ? CP_ACP : CP_OEMCP), 
+    desiredAccess, shareMode, creationDisposition, flagsAndAttributes);
+}
+#endif
+
+bool CFileBase::Close()
+{
+  if(!_fileIsOpen)
+    return true;
+  bool result = BOOLToBool(::CloseHandle(_handle));
+  _fileIsOpen = !result;
+  return result;
+}
+
+bool CFileBase::GetPosition(UInt64 &position) const
+{
+  return Seek(0, FILE_CURRENT, position);
+}
+
+bool CFileBase::GetLength(UInt64 &length) const
+{
+  DWORD sizeHigh;
+  DWORD sizeLow = ::GetFileSize(_handle, &sizeHigh);
+  if(sizeLow == 0xFFFFFFFF)
+    if(::GetLastError() != NO_ERROR)
+      return false;
+  length = (((UInt64)sizeHigh) << 32) + sizeLow;
+  return true;
+}
+
+bool CFileBase::Seek(Int64 distanceToMove, DWORD moveMethod, UInt64 &newPosition) const
+{
+  LARGE_INTEGER value;
+  value.QuadPart = distanceToMove;
+  value.LowPart = ::SetFilePointer(_handle, value.LowPart, &value.HighPart, moveMethod);
+  if (value.LowPart == 0xFFFFFFFF)
+    if(::GetLastError() != NO_ERROR) 
+      return false;
+  newPosition = value.QuadPart;
+  return true;
+}
+
+bool CFileBase::Seek(UInt64 position, UInt64 &newPosition)
+{
+  return Seek(position, FILE_BEGIN, newPosition);
+}
+
+bool CFileBase::SeekToBegin()
+{
+  UInt64 newPosition;
+  return Seek(0, newPosition);
+}
+
+bool CFileBase::SeekToEnd(UInt64 &newPosition)
+{
+  return Seek(0, FILE_END, newPosition);
+}
+
+bool CFileBase::GetFileInformation(CByHandleFileInfo &fileInfo) const
+{
+  BY_HANDLE_FILE_INFORMATION winFileInfo;
+  if(!::GetFileInformationByHandle(_handle, &winFileInfo))
+    return false;
+  fileInfo.Attributes = winFileInfo.dwFileAttributes;
+  fileInfo.CreationTime = winFileInfo.ftCreationTime;
+  fileInfo.LastAccessTime = winFileInfo.ftLastAccessTime;
+  fileInfo.LastWriteTime = winFileInfo.ftLastWriteTime;
+  fileInfo.VolumeSerialNumber = winFileInfo.dwFileAttributes; 
+  fileInfo.Size = (((UInt64)winFileInfo.nFileSizeHigh) << 32) +  winFileInfo.nFileSizeLow;
+  fileInfo.NumberOfLinks = winFileInfo.nNumberOfLinks;
+  fileInfo.FileIndex = (((UInt64)winFileInfo.nFileIndexHigh) << 32) + winFileInfo.nFileIndexLow;
+  return true;
+}
+
+/////////////////////////
+// CInFile
+
+bool CInFile::Open(LPCTSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes)
+  { return Create(fileName, GENERIC_READ, shareMode, creationDisposition, flagsAndAttributes); }
+
+bool CInFile::Open(LPCTSTR fileName)
+  { return Open(fileName, FILE_SHARE_READ, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL); }
+
+#ifndef _UNICODE
+bool CInFile::Open(LPCWSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes)
+  { return Create(fileName, GENERIC_READ, shareMode, creationDisposition, flagsAndAttributes); }
+
+bool CInFile::Open(LPCWSTR fileName)
+  { return Open(fileName, FILE_SHARE_READ, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL); }
+#endif
+
+// ReadFile and WriteFile functions in Windows have BUG:
+// If you Read or Write 64MB or more (probably min_failure_size = 64MB - 32KB + 1) 
+// from/to Network file, it returns ERROR_NO_SYSTEM_RESOURCES 
+// (Insufficient system resources exist to complete the requested service).
+
+static UInt32 kChunkSizeMax = (1 << 24);
+
+bool CInFile::ReadPart(void *data, UInt32 size, UInt32 &processedSize)
+{
+  if (size > kChunkSizeMax)
+    size = kChunkSizeMax;
+  DWORD processedLoc = 0;
+  bool res = BOOLToBool(::ReadFile(_handle, data, size, &processedLoc, NULL));
+  processedSize = (UInt32)processedLoc;
+  return res;
+}
+
+bool CInFile::Read(void *data, UInt32 size, UInt32 &processedSize)
+{
+  processedSize = 0;
+  do
+  {
+    UInt32 processedLoc = 0;
+    bool res = ReadPart(data, size, processedLoc);
+    processedSize += processedLoc;
+    if (!res)
+      return false;
+    if (processedLoc == 0)
+      return true;
+    data = (void *)((unsigned char *)data + processedLoc);
+    size -= processedLoc;
+  }
+  while (size > 0);
+  return true;
+}
+
+/////////////////////////
+// COutFile
+
+bool COutFile::Open(LPCTSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes)
+  { return CFileBase::Create(fileName, GENERIC_WRITE, shareMode, creationDisposition, flagsAndAttributes); }
+
+static inline DWORD GetCreationDisposition(bool createAlways)
+  { return createAlways? CREATE_ALWAYS: CREATE_NEW; }
+
+bool COutFile::Open(LPCTSTR fileName, DWORD creationDisposition)
+  { return Open(fileName, FILE_SHARE_READ, creationDisposition, FILE_ATTRIBUTE_NORMAL); }
+
+bool COutFile::Create(LPCTSTR fileName, bool createAlways)
+  { return Open(fileName, GetCreationDisposition(createAlways)); }
+
+#ifndef _UNICODE
+
+bool COutFile::Open(LPCWSTR fileName, DWORD shareMode, DWORD creationDisposition, DWORD flagsAndAttributes)
+  { return CFileBase::Create(fileName, GENERIC_WRITE, shareMode,      creationDisposition, flagsAndAttributes); }
+
+bool COutFile::Open(LPCWSTR fileName, DWORD creationDisposition)
+  { return Open(fileName, FILE_SHARE_READ,  creationDisposition, FILE_ATTRIBUTE_NORMAL); }
+
+bool COutFile::Create(LPCWSTR fileName, bool createAlways)
+  { return Open(fileName, GetCreationDisposition(createAlways)); }
+
+#endif
+
+bool COutFile::SetTime(const FILETIME *creationTime, const FILETIME *lastAccessTime, const FILETIME *lastWriteTime)
+  { return BOOLToBool(::SetFileTime(_handle, creationTime, lastAccessTime, lastWriteTime)); }
+
+bool COutFile::SetLastWriteTime(const FILETIME *lastWriteTime)
+  {  return SetTime(NULL, NULL, lastWriteTime); }
+
+bool COutFile::WritePart(const void *data, UInt32 size, UInt32 &processedSize)
+{
+  if (size > kChunkSizeMax)
+    size = kChunkSizeMax;
+  DWORD processedLoc = 0;
+  bool res = BOOLToBool(::WriteFile(_handle, data, size, &processedLoc, NULL));
+  processedSize = (UInt32)processedLoc;
+  return res;
+}
+
+bool COutFile::Write(const void *data, UInt32 size, UInt32 &processedSize)
+{
+  processedSize = 0;
+  do
+  {
+    UInt32 processedLoc = 0;
+    bool res = WritePart(data, size, processedLoc);
+    processedSize += processedLoc;
+    if (!res)
+      return false;
+    if (processedLoc == 0)
+      return true;
+    data = (const void *)((const unsigned char *)data + processedLoc);
+    size -= processedLoc;
+  }
+  while (size > 0);
+  return true;
+}
+
+bool COutFile::SetEndOfFile() { return BOOLToBool(::SetEndOfFile(_handle)); }
+
+bool COutFile::SetLength(UInt64 length)
+{
+  UInt64 newPosition;
+  if(!Seek(length, newPosition))
+    return false;
+  if(newPosition != length)
+    return false;
+  return SetEndOfFile();
+}
+
+}}}