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diff --git a/sandbox/sandbox_poc/pocdll/utils.h b/sandbox/sandbox_poc/pocdll/utils.h
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+++ b/sandbox/sandbox_poc/pocdll/utils.h
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+// Copyright 2008, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//    * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//    * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//    * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef SANDBOX_SANDBOX_POC_POCDLL_UTILS_H__
+#define SANDBOX_SANDBOX_POC_POCDLL_UTILS_H__
+
+#include <stdio.h>
+#include <io.h>
+#include "base/basictypes.h"
+
+// Class to convert a HANDLE to a FILE *. The FILE * is closed when the
+// object goes out of scope
+class HandleToFile {
+ public:
+  HandleToFile() {
+    file_ = NULL;
+  };
+
+  // Note: c_file_handle_ does not need to be closed because fclose does it.
+  ~HandleToFile() {
+    if (file_) {
+      fflush(file_);
+      fclose(file_);
+    }
+  };
+
+  // Translates a HANDLE (handle) to a FILE * opened with the mode "mode".
+  // The return value is the FILE * or NULL if there is an error.
+  FILE* Translate(HANDLE handle, const char *mode) {
+    if (file_) {
+      return  NULL;
+    }
+
+    HANDLE new_handle;
+    BOOL result = ::DuplicateHandle(::GetCurrentProcess(),
+                                    handle,
+                                    ::GetCurrentProcess(),
+                                    &new_handle,
+                                    0,  // Don't ask for a specific
+                                        // desired access.
+                                    FALSE,  // Not inheritable.
+                                    DUPLICATE_SAME_ACCESS);
+
+    if (!result) {
+      return NULL;
+    }
+
+    int c_file_handle = _open_osfhandle(reinterpret_cast<LONG_PTR>(new_handle),
+                                        0);  // No flags
+    if (-1 == c_file_handle) {
+      return NULL;
+    }
+
+    file_ = _fdopen(c_file_handle, mode);
+    return file_;
+  };
+ private:
+  // the FILE* returned. We need to closed it at the end.
+  FILE* file_;
+
+  DISALLOW_EVIL_CONSTRUCTORS(HandleToFile);
+};
+
+#endif  // SANDBOX_SANDBOX_POC_POCDLL_UTILS_H__