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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_SRC_SANDBOX_UTILS_H__
+#define SANDBOX_SRC_SANDBOX_UTILS_H__
+
+#include <windows.h>
+#include <string>
+
+#include "base/basictypes.h"
+#include "sandbox/src/nt_internals.h"
+
+namespace sandbox {
+
+typedef BOOL (WINAPI* GetModuleHandleExFunction)(DWORD flags,
+                                                 LPCWSTR module_name,
+                                                 HMODULE* module);
+
+// Windows XP provides a nice function in kernel32.dll called GetModuleHandleEx
+// This function allows us to verify if a function exported by the module
+// lies in the module itself.
+// As we need compatibility with windows 2000, we cannot use this function
+// by calling it by name. This helper function checks if the GetModuleHandleEx
+// function is exported by kernel32 and uses it, otherwise, implemets part of
+// the functionality exposed by GetModuleHandleEx.
+bool GetModuleHandleHelper(DWORD flags, const wchar_t* module_name,
+                           HMODULE* module);
+
+// Returns true if the current OS is Windows XP SP2 or later.
+bool IsXPSP2OrLater();
+
+void InitObjectAttribs(const std::wstring& name, ULONG attributes, HANDLE root,
+                       OBJECT_ATTRIBUTES* obj_attr, UNICODE_STRING* uni_name);
+
+};  // namespace sandbox
+
+#endif  // SANDBOX_SRC_SANDBOX_UTILS_H__