Move Windows Sandbox, trybots version (don't commit me!)

sandbox/src/win_utils.h

-// Copyright (c) 2006-2010 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef SANDBOX_SRC_WIN_UTILS_H_
-#define SANDBOX_SRC_WIN_UTILS_H_
-
-#include <windows.h>
-#include <string>
-#include "base/basictypes.h"
-
-namespace sandbox {
-
-// Prefix for path used by NT calls.
-const wchar_t kNTPrefix[] = L"\\??\\";
-const size_t kNTPrefixLen = arraysize(kNTPrefix) - 1;
-
-const wchar_t kNTObjManPrefix[] = L"\\Device\\";
-const size_t kNTObjManPrefixLen = arraysize(kNTObjManPrefix) - 1;
-
-// Automatically acquires and releases a lock when the object is
-// is destroyed.
-class AutoLock {
- public:
-  // Acquires the lock.
-  explicit AutoLock(CRITICAL_SECTION *lock) : lock_(lock) {
-    ::EnterCriticalSection(lock);
-  };
-
-  // Releases the lock;
-  ~AutoLock() {
-    ::LeaveCriticalSection(lock_);
-  };
-
- private:
-  CRITICAL_SECTION *lock_;
-  DISALLOW_IMPLICIT_CONSTRUCTORS(AutoLock);
-};
-
-// Basic implementation of a singleton which calls the destructor
-// when the exe is shutting down or the DLL is being unloaded.
-template <typename Derived>
-class SingletonBase {
- public:
-  static Derived* GetInstance() {
-    static Derived* instance = NULL;
-    if (NULL == instance) {
-      instance = new Derived();
-      // Microsoft CRT extension. In an exe this this called after
-      // winmain returns, in a dll is called in DLL_PROCESS_DETACH
-      _onexit(OnExit);
-    }
-    return instance;
-  }
-
- private:
-  // this is the function that gets called by the CRT when the
-  // process is shutting down.
-  static int __cdecl OnExit() {
-    delete GetInstance();
-    return 0;
-  }
-};
-
-// Convert a short path (C:\path~1 or \\??\\c:\path~1) to the long version of
-// the path. If the path is not a valid filesystem path, the function returns
-// false and the output parameter is not modified.
-bool ConvertToLongPath(const std::wstring& short_path, std::wstring* long_path);
-
-// Sets result to true if the path contains a reparse point. The return value
-// is ERROR_SUCCESS when the function succeeds or the appropriate error code
-// when the function fails.
-// This function is not smart. It looks for each element in the path and
-// returns true if any of them is a reparse point.
-DWORD IsReparsePoint(const std::wstring& full_path, bool* result);
-
-// Returns true if the handle corresponds to the object pointed by this path.
-bool SameObject(HANDLE handle, const wchar_t* full_path);
-
-// Resolves a handle to an nt path. Returns true if the handle can be resolved.
-bool GetPathFromHandle(HANDLE handle, std::wstring* path);
-
-// Resolves a win32 path to an nt path using GetPathFromHandle. The path must
-// exist. Returs true if the translation was succesful.
-bool GetNtPathFromWin32Path(const std::wstring& path, std::wstring* nt_path);
-
-// Translates a reserved key name to its handle.
-// For example "HKEY_LOCAL_MACHINE" returns HKEY_LOCAL_MACHINE.
-// Returns NULL if the name does not represent any reserved key name.
-HKEY GetReservedKeyFromName(const std::wstring& name);
-
-// Resolves a user-readable registry path to a system-readable registry path.
-// For example, HKEY_LOCAL_MACHINE\\Software\\microsoft is translated to
-// \\registry\\machine\\software\\microsoft. Returns false if the path
-// cannot be resolved.
-bool ResolveRegistryName(std::wstring name, std::wstring* resolved_name);
-
-// Writes |length| bytes from the provided |buffer| into the address space of
-// |child_process|, at the specified |address|, preserving the original write
-// protection attributes. Returns true on success.
-bool WriteProtectedChildMemory(HANDLE child_process, void* address,
-                               const void* buffer, size_t length);
-
-}  // namespace sandbox
-
-// Resolves a function name in NTDLL to a function pointer. The second parameter
-// is a pointer to the function pointer.
-void ResolveNTFunctionPtr(const char* name, void* ptr);
-
-#endif  // SANDBOX_SRC_WIN_UTILS_H_