Add original TrueCrypt 7.1a sources

src/Platform/FileStream.h

@@ -0,0 +1,58 @@
+/*
+ Copyright (c) 2008 TrueCrypt Developers Association. All rights reserved.
+
+ Governed by the TrueCrypt License 3.0 the full text of which is contained in
+ the file License.txt included in TrueCrypt binary and source code distribution
+ packages.
+*/
+
+#ifndef TC_HEADER_Platform_FileStream
+#define TC_HEADER_Platform_FileStream
+
+#include "PlatformBase.h"
+#include "File.h"
+#include "SharedPtr.h"
+#include "Stream.h"
+
+namespace TrueCrypt
+{
+	class FileStream : public Stream
+	{
+	public:
+		FileStream (shared_ptr <File> file) : DataFile (file) { }
+		FileStream (File::SystemFileHandleType openFileHandle) { DataFile.reset (new File ()); DataFile->AssignSystemHandle (openFileHandle); }
+		virtual ~FileStream () { }
+
+		virtual uint64 Read (const BufferPtr &buffer)
+		{
+			return DataFile->Read (buffer);
+		}
+
+		virtual void ReadCompleteBuffer (const BufferPtr &buffer)
+		{
+			DataFile->ReadCompleteBuffer (buffer);
+		}
+
+		virtual string ReadToEnd ()
+		{
+			string str;
+			vector <char> buffer (4096);
+			uint64 len;
+
+			while ((len = DataFile->Read (BufferPtr (reinterpret_cast <byte *> (&buffer[0]), buffer.size()))) > 0)
+				str.insert (str.end(), buffer.begin(), buffer.begin() + static_cast <int> (len));
+
+			return str;
+		}
+
+		virtual void Write (const ConstBufferPtr &data)
+		{
+			DataFile->Write (data);
+		}
+
+	protected:
+		shared_ptr <File> DataFile;
+	};
+}
+
+#endif // TC_HEADER_Platform_FileStream