1 files changed, 24 insertions, 0 deletions
diff --git a/other-licenses/7zstub/src/7zip/Common/LimitedStreams.cpp b/other-licenses/7zstub/src/7zip/Common/LimitedStreams.cpp
new file mode 100644
index 000000000..c210c9560
--- /dev/null
+++ b/other-licenses/7zstub/src/7zip/Common/LimitedStreams.cpp
@@ -0,0 +1,24 @@
+// LimitedStreams.cpp
+
+#include "StdAfx.h"
+
+#include "LimitedStreams.h"
+#include "../../Common/Defs.h"
+
+void CLimitedSequentialInStream::Init(ISequentialInStream *stream, UInt64 streamSize)
+{
+  _stream = stream;
+  _size = streamSize;
+}
+
+STDMETHODIMP CLimitedSequentialInStream::Read(void *data, UInt32 size, UInt32 *processedSize)
+{
+  UInt32 processedSizeReal;
+  UInt32 sizeToRead = UInt32(MyMin(_size, UInt64(size)));
+  HRESULT result = _stream->Read(data, sizeToRead, &processedSizeReal);
+  _size -= processedSizeReal;
+  if(processedSize != NULL)
+    *processedSize = processedSizeReal;
+  return result;
+}
+