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POAdjustTokenPrivileges error 6 - handle invalid
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  1. POAdjustTokenPrivileges error 6 - handle invalid
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    copied!<p>Please advise why the <code>AdjustTokenPrivileges</code> function below always returns true, thus giving: "AdjustTokenPrivileges error 6" (ie invalid handle)?</p> <p>stackoverlow is complaining that I didn't explain this enough</p> <p>I don't know what else to add. I'm new to c++.</p> <pre><code>HANDLE hToken; OpenProcessToken(GetCurrentProcess, TOKEN_ADJUST_PRIVILEGES, &amp;hToken); SetPrivilege(hToken,L"SeBackupPrivilege",1 ); CloseHandle(hToken); </code></pre> <hr> <pre><code>BOOL SetPrivilege( HANDLE hToken, // access token handle LPCTSTR lpszPrivilege, // name of privilege to enable/disable BOOL bEnablePrivilege // to enable or disable privilege ) { TOKEN_PRIVILEGES oldtp; /* old token privileges */ TOKEN_PRIVILEGES tp; DWORD dwSize = sizeof (TOKEN_PRIVILEGES); LUID luid; if ( !LookupPrivilegeValue( NULL, // lookup privilege on local system lpszPrivilege, // privilege to lookup &amp;luid ) ) // receives LUID of privilege { printf("LookupPrivilegeValue error: %u\n", GetLastError() ); return FALSE; } tp.PrivilegeCount = 1; tp.Privileges[0].Luid = luid; if (bEnablePrivilege) tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; else tp.Privileges[0].Attributes = 0; // Enable the privilege or disable all privileges. if ( !AdjustTokenPrivileges( &amp;hToken, FALSE, &amp;tp, sizeof(TOKEN_PRIVILEGES), (PTOKEN_PRIVILEGES) &amp;oldtp, (PDWORD) &amp;dwSize) ) { printf("AdjustTokenPrivileges error: %u\n", GetLastError() ); //Get error 6 here (ie invalid handle) return FALSE; } if (GetLastError() == ERROR_NOT_ALL_ASSIGNED) { printf("The token does not have the specified privilege. \n"); return FALSE; } return TRUE; } </code></pre>
 

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