Source code of Windows XP (NT5)
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//////////////////////////////////////////////////////////////////////////////
//
// Copyright (c) 2000 Microsoft Corporation
//
// Module Name:
// CImpersonateUser.h
//
// Description:
// Header file for CImpersonateUser class.
//
// The CImpersonateUser class begins impersonating a user in its
// constructor and automatically reverts to the original token in
// the destructor.
//
// Maintained By:
// Vij Vasu (Vvasu) 16-MAY-2000
//
//////////////////////////////////////////////////////////////////////////////
// Make sure that this file is included only once per compile path.
#pragma once
//////////////////////////////////////////////////////////////////////////////
// Include Files
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//++
//
// class CImpersonateUser
//
// Description:
// The CImpersonateUser class begins impersonating a user in its
// constructor and automatically reverts to the original token in
// the destructor.
//
//--
//////////////////////////////////////////////////////////////////////////////
class CImpersonateUser { public:
//////////////////////////////////////////////////////////////////////////
// Constructors and destructors
//////////////////////////////////////////////////////////////////////////
// Construtor. Start impersonating the user whose token is passed in.
CImpersonateUser( HANDLE hUserToken );
// Destructor. Revert to the original token.
~CImpersonateUser() throw();
private:
//////////////////////////////////////////////////////////////////////////
// Private member functions
//////////////////////////////////////////////////////////////////////////
// Copy constructor
CImpersonateUser( const CImpersonateUser & );
// Assignment operator
const CImpersonateUser & operator =( const CImpersonateUser & );
//////////////////////////////////////////////////////////////////////////
// Private member data
//////////////////////////////////////////////////////////////////////////
// Handle to the token for the thread before the impersonation began.
HANDLE m_hThreadToken;
// Indicates if this thread was already impersonating a client when this
// object was constructed.
bool m_fWasImpersonating;
}; //*** class CImpersonateUser
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