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128 lines
3.3 KiB
128 lines
3.3 KiB
/*++
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Copyright (c) 1994-2002 Microsoft Corporation
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Module Name :
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strpass.h
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Abstract:
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Message Functions Definitions
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Author:
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Aaron Lee (aaronl)
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Project:
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Internet Services Manager
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Revision History:
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--*/
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#ifndef _STRPASS_H_
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#define _STRPASS_H_
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// ----------------------------------------
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// This class was created to allow a class to
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// keep passwords in it's member variables.
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//
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// In the event that the process get's paged out to
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// the swapfile, any user will be able to read the
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// swapfile. if the member variables contained
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// passwords, they wil be there in clear text.
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//
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// Usage1 -- with LPTSTR:
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// CStrPassword m_strPassword;
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// // assign a password into member variable
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// m_strPassword = _T("MyPassword");
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// // get a password out
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// LPTSTR lpPassword = m_strPassword.GetClearTextPassword();
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// // use it...
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// FunctionToUsePassword(lpPassword);
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// // erase it -- this will erase memory where cleartext password was stored
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// m_strPassword.DestroyClearTextPassword();
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//
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// Usage2 -- with CString:
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// CStrPassword m_strPassword(_T("MyPassword"));
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// // get a password out into CString
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// CString csPassword;
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// m_strPassword.CopyTo(csPassword);
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// // use it...
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// FunctionToUsePassword(csPassword);
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// // erase it by overwritting
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// csPassword = _T(" ");
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// csPassword.Empty();
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//
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// DO NOT DO THIS -- this will allocate a cleartext password and it will never be Freed!
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// FunctionToUsePassword( (LPTSTR) m_strPassword.GetClearTextPassword());
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//
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// ----------------------------------------
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#ifdef _COMEXPORT
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class COMDLL CStrPassword
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#elif defined(_DLLEXP)
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class _EXPORT CStrPassword
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#else
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class CStrPassword
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#endif
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{
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public:
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// constructor/destructor
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CStrPassword();
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~CStrPassword();
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// copy constructors
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CStrPassword(LPTSTR lpsz);
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CStrPassword(LPCTSTR lpsz);
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CStrPassword(CStrPassword& csPassword);
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// get character count
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int GetLength() const;
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// get byte count
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int GetByteLength() const;
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// TRUE if zero length
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BOOL IsEmpty() const;
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// clear contents to empty
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void Empty();
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// straight character comparison
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int Compare(LPCTSTR lpsz) const;
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int Compare(CString& lpsz) const;
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int Compare(CStrPassword& lpsz) const;
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// copy string content from UNICODE string (converts to TCHAR)
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const CStrPassword& operator=(LPCTSTR lpsz);
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const CStrPassword& operator=(CStrPassword& lpStrPass);
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// copy to...
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void CopyTo(CString& stringSrc);
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void CopyTo(CStrPassword& stringSrc);
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// Get Data out from it (unencrypted)
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// Each call to GetClearTextPassword() should have an equal
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// DestroyClearTextPassword() call to it.
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LPTSTR GetClearTextPassword();
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void DestroyClearTextPassword(LPTSTR lpClearTextPassword) const;
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// not implemented
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operator TCHAR*();
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// returns CString
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operator CString();
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bool operator== (CStrPassword& csCompareToMe);
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bool operator!= (CStrPassword& csCompareToMe)
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{
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return !(operator==(csCompareToMe));
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}
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private:
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void ClearPasswordBuffers(void);
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protected:
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LPTSTR m_pszDataEncrypted;
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DWORD m_cbDataEncrypted;
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};
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#endif
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