1375 lines
40 KiB
C++
1375 lines
40 KiB
C++
// *********************************************************************************
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//
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// Copyright (c) Microsoft Corporation
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//
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// Module Name:
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//
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// TaskList.cpp
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//
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// Abstract:
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//
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// This module implements the command-line parsing the displaying the tasks
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// information current running on local and remote systems
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//
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// Syntax:
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// ------
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// TaskList.exe [-s server [-u username [-p password]]]
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// [-fo format] [-fi filter] [-nh] [-v | -svc | -m]
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//
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// Author:
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//
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// Sunil G.V.N. Murali (murali.sunil@wipro.com) 24-Sep-2000
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//
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// Revision History:
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//
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// Sunil G.V.N. Murali (murali.sunil@wipro.com) 24-Sep-2000 : Created It.
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//
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// *********************************************************************************
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#include "pch.h"
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#include "wmi.h"
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#include "TaskList.h"
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//
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// local structures
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//
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typedef struct __tagWindowTitles
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{
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LPWSTR lpDesk;
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LPWSTR lpWinsta;
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BOOL bFirstLoop;
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TARRAY arrWindows;
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} TWINDOWTITLES, *PTWINDOWTITLES;
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//
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// private functions ... prototypes
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//
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BOOL CALLBACK EnumWindowsProc( HWND hWnd, LPARAM lParam );
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BOOL CALLBACK EnumDesktopsFunc( LPWSTR lpstr, LPARAM lParam );
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BOOL CALLBACK EnumWindowStationsFunc( LPWSTR lpstr, LPARAM lParam );
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BOOL CALLBACK EnumMessageWindows( WNDENUMPROC lpEnumFunc, LPARAM lParam );
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BOOL GetPerfDataBlock( HKEY hKey, LPWSTR szObjectIndex, PPERF_DATA_BLOCK* ppdb );
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DWORD
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__cdecl wmain(
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IN DWORD argc,
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IN LPCWSTR argv[]
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)
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/*++
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Routine Description:
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This the entry point to this utility.
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Arguments:
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[ in ] argc : argument(s) count specified at the command prompt
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[ in ] argv : argument(s) specified at the command prompt
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Return Value:
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The below are actually not return values but are the exit values
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returned to the OS by this application
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0 : utility is successfull
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1 : utility failed
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--*/
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{
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// local variables
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CTaskList tasklist;
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// initialize the tasklist utility
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if ( FALSE == tasklist.Initialize() )
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{
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DISPLAY_GET_REASON();
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EXIT_PROCESS( 1 );
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}
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// now do parse the command line options
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if ( FALSE == tasklist.ProcessOptions( argc, argv ) )
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{
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DISPLAY_GET_REASON();
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EXIT_PROCESS( 1 );
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}
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// check whether usage has to be displayed or not
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if ( TRUE == tasklist.m_bUsage )
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{
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// show the usage of the utility
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tasklist.Usage();
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// quit from the utility
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EXIT_PROCESS( 0 );
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}
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// now validate the filters and check the result of the filter validation
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if ( FALSE == tasklist.ValidateFilters() )
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{
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// invalid filter
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DISPLAY_GET_REASON();
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// quit from the utility
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EXIT_PROCESS( 1 );
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}
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// connect to the server
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if ( FALSE == tasklist.Connect() )
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{
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// show the error message
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DISPLAY_GET_REASON();
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EXIT_PROCESS( 1 );
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}
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// load the data and check
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if ( FALSE == tasklist.LoadTasks() )
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{
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// show the error message
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DISPLAY_GET_REASON();
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// exit
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EXIT_PROCESS( 1 );
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}
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// now show the tasks running on the machine
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if ( 0 == tasklist.Show() )
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{
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//
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// no tasks were shown ... display the message
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// check if this is because of any error
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if ( NO_ERROR != GetLastError() )
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{
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DISPLAY_GET_REASON();
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EXIT_PROCESS( 1 );
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}
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else
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{
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DISPLAY_MESSAGE( stdout, ERROR_NODATA_AVAILABLE );
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}
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}
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// clean exit
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EXIT_PROCESS( 0 );
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}
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BOOL
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CTaskList::Connect(
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void
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)
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/*++
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Routine Description:
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connects to the remote as well as remote system's WMI
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Arguments:
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[ in ] pszServer : remote server name
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Return Value:
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TRUE : if connection is successful
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FALSE : if connection is unsuccessful
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--*/
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{
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// local variables
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BOOL bResult = FALSE;
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HRESULT hr = S_OK;
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// release the existing auth identity structure
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m_bUseRemote = FALSE;
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WbemFreeAuthIdentity( &m_pAuthIdentity );
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// connect to WMI
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bResult = ConnectWmiEx( m_pWbemLocator,
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&m_pWbemServices, m_strServer, m_strUserName, m_strPassword,
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&m_pAuthIdentity, m_bNeedPassword, WMI_NAMESPACE_CIMV2, &m_bLocalSystem );
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hr = GetLastError();
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// check the result of connection
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if ( FALSE == bResult )
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{
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return FALSE;
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}
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#ifndef _WIN64
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// determine the type of the platform if modules info is required
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if ( ( TRUE == m_bLocalSystem ) && ( TRUE == m_bNeedModulesInfo ) )
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{
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// sub-local variables
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DWORD dwPlatform = 0;
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// get the platform type
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dwPlatform = GetTargetPlatformEx( m_pWbemServices, m_pAuthIdentity );
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// if the platform is not 32-bit, error
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if ( PLATFORM_X86 != dwPlatform )
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{
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// let the tool use WMI calls instead of Win32 API
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m_bUseRemote = TRUE;
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}
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}
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#endif
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try
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{
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// check the local credentials and if need display warning
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if ( WBEM_E_LOCAL_CREDENTIALS == hr )
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{
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WMISaveError( WBEM_E_LOCAL_CREDENTIALS );
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ShowMessageEx( stderr, 2, FALSE, L"%1 %2",
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TAG_WARNING, GetReason() );
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}
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// check the remote system version and its compatiblity
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if ( FALSE == m_bLocalSystem )
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{
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// check the version compatibility
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DWORD dwVersion = 0;
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dwVersion = GetTargetVersionEx( m_pWbemServices, m_pAuthIdentity );
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if ( FALSE == IsCompatibleOperatingSystem( dwVersion ) )
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{
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SetReason( ERROR_REMOTE_INCOMPATIBLE );
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return FALSE;
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}
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}
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// save the server name
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m_strUNCServer = L"";
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if ( 0 != m_strServer.GetLength() )
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{
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// check whether the server name is in UNC format or not .. if not prepare it
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m_strUNCServer = m_strServer;
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if ( FALSE == IsUNCFormat( m_strServer ) )
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{
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m_strUNCServer.Format( L"\\\\%s", m_strServer );
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}
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}
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}
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catch( CHeap_Exception )
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{
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WMISaveError( E_OUTOFMEMORY );
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return FALSE;
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}
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// return the result
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return TRUE;
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}
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BOOL
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CTaskList::LoadTasks(
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void
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)
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/*++
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Routine Description:
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Store process running on a system.
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Arguments:
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NONE
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Return Value:
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TRUE if success else FALSE is returned.
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--*/
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{
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// local variables
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HRESULT hr = S_OK;
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LONG lIndex = 0;
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try
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{
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// check the services object
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if ( NULL == m_pWbemServices )
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{
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SetLastError( ( DWORD )STG_E_UNKNOWN );
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SaveLastError();
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return FALSE;
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}
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// load the tasks from WMI based on generated query
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SAFE_RELEASE( m_pEnumObjects );
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hr = m_pWbemServices->ExecQuery( _bstr_t( WMI_QUERY_TYPE ), _bstr_t( m_strQuery ),
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WBEM_FLAG_RETURN_IMMEDIATELY | WBEM_FLAG_FORWARD_ONLY, NULL, &m_pEnumObjects );
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// check the result of the ExecQuery
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if ( FAILED( hr ) )
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{
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WMISaveError( hr );
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return FALSE;
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}
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// set the interface security and check the result
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hr = SetInterfaceSecurity( m_pEnumObjects, m_pAuthIdentity );
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if ( FAILED( hr ) )
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{
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WMISaveError( hr );
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return FALSE;
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}
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// remove the current window titles information
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DynArrayRemoveAll( m_arrWindowTitles );
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// for the local system, enumerate the window titles of the processes
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// there is no provision for collecting the window titles of remote processes
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m_bRemoteWarning = FALSE;
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if ( ( TRUE == m_bLocalSystem ) && ( TRUE == m_bNeedWindowTitles ) )
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{
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// prepare the tasks list info
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TWINDOWTITLES windowtitles;
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windowtitles.lpDesk = NULL;
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windowtitles.lpWinsta = NULL;
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windowtitles.bFirstLoop = FALSE;
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windowtitles.arrWindows = m_arrWindowTitles;
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EnumWindowStations( EnumWindowStationsFunc, ( LPARAM ) &windowtitles );
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// free the memory allocated with _tcsdup string function
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if ( NULL != windowtitles.lpDesk )
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{
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free( windowtitles.lpDesk );
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windowtitles.lpDesk = NULL;
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}
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// ...
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if ( NULL != windowtitles.lpWinsta )
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{
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free( windowtitles.lpWinsta );
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windowtitles.lpWinsta = NULL;
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}
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}
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else
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{
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if ( ( FALSE == m_bLocalSystem ) && ( TRUE == m_bNeedWindowTitles ) )
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{
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// as window titles and status filters are supported when
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// querying remote systems, check whether user gave those filters are not
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// if there are any filters found -- delete those filters
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//
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// window title
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lIndex = DynArrayFindStringEx( m_arrFiltersEx,
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F_PARSED_INDEX_PROPERTY, FILTER_WINDOWTITLE, TRUE, 0 );
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while ( -1 != lIndex )
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{
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// make mark to display the warning message
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m_bRemoteWarning = TRUE;
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// remove the filter
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DynArrayRemove( m_arrFiltersEx, lIndex );
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// check if there any more filters of this kind
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lIndex = DynArrayFindStringEx( m_arrFiltersEx,
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F_PARSED_INDEX_PROPERTY, FILTER_WINDOWTITLE, TRUE, 0 );
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}
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//
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// status
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lIndex = DynArrayFindStringEx( m_arrFiltersEx,
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F_PARSED_INDEX_PROPERTY, FILTER_STATUS, TRUE, 0 );
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while ( -1 != lIndex )
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{
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// make mark to display the warning message
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m_bRemoteWarning = TRUE;
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// remove the filter
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DynArrayRemove( m_arrFiltersEx, lIndex );
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// check if there any more filters of this kind
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lIndex = DynArrayFindStringEx( m_arrFiltersEx,
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F_PARSED_INDEX_PROPERTY, FILTER_STATUS, TRUE, 0 );
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}
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}
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}
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// load the extended tasks information
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LoadTasksEx(); // NOTE: here we are not much bothered abt the return value
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}
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catch( CHeap_Exception )
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{
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WMISaveError( E_OUTOFMEMORY );
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return FALSE;
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}
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// return success
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return TRUE;
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}
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BOOL
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CTaskList::LoadTasksEx(
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void
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)
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/*++
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Routine Description:
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Store other information such as module, service etc. of a process
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running on a system.
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Arguments:
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NONE
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Return Value:
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TRUE if success else FALSE is returned.
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--*/
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{
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// local variables
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BOOL bResult = FALSE;
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// init
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m_bCloseConnection = FALSE;
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try
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{
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// we need to use NET API only in case connecting to the remote system
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// with credentials information i.e; m_pAuthIdentity is not NULL
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if ( ( FALSE == m_bLocalSystem ) && ( NULL != m_pAuthIdentity ) )
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{
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// sub-local variables
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DWORD dwConnect = 0;
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LPCWSTR pwszUser = NULL;
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LPCWSTR pwszPassword = NULL;
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// identify the password to connect to the remote system
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pwszPassword = m_pAuthIdentity->Password;
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if ( 0 != m_strUserName.GetLength() )
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{
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pwszUser = m_strUserName;
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}
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// establish connection to the remote system using NET API
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// this we need to do only for remote system
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dwConnect = NO_ERROR;
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m_bCloseConnection = TRUE;
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dwConnect = ConnectServer( m_strUNCServer, pwszUser, pwszPassword );
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if ( NO_ERROR != dwConnect )
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{
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// connection should not be closed .. this is because we didn't establish the connection
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m_bCloseConnection = FALSE;
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// this might be 'coz of the conflict in the credentials ... check that
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if ( ERROR_SESSION_CREDENTIAL_CONFLICT != dwConnect )
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{
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// return failure
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return FALSE;
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}
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}
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// check the whether we need to close the connection or not
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// if user name is NULL (or) password is NULL then don't close the connection
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if ( ( NULL == pwszUser ) || ( NULL == pwszPassword ) )
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{
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m_bCloseConnection = FALSE;
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}
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}
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// connect to the remote system's winstation
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bResult = TRUE;
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m_hServer = SERVERNAME_CURRENT;
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if ( FALSE == m_bLocalSystem )
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{
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// sub-local variables
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LPWSTR pwsz = NULL;
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// connect to the winsta and check the result
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pwsz = m_strUNCServer.GetBuffer( m_strUNCServer.GetLength() );
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m_hServer = WinStationOpenServerW( pwsz );
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// proceed furthur only if winstation of the remote system is successfully opened
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if ( NULL == m_hServer )
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{
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bResult = FALSE;
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}
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}
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// prepare to get the user context info .. if needed
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if ( ( TRUE == m_bNeedUserContextInfo ) && ( TRUE == bResult ) )
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{
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// get all the process details
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m_bIsHydra = FALSE;
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bResult = WinStationGetAllProcesses( m_hServer,
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GAP_LEVEL_BASIC, &m_ulNumberOfProcesses, (PVOID*) &m_pProcessInfo );
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// check the result
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if ( FALSE == bResult )
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{
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// Maybe a Hydra 4 server ?
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// Check the return code indicating that the interface is not available.
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if ( RPC_S_PROCNUM_OUT_OF_RANGE == GetLastError() )
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{
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// The new interface is not known
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// It must be a Hydra 4 server
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// try with the old interface
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bResult = WinStationEnumerateProcesses( m_hServer, (PVOID*) &m_pProcessInfo );
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// check the result of enumeration
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if ( TRUE == bResult )
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{
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m_bIsHydra = TRUE;
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}
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}
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else
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{
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// unknown error
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// ????????????????????????????????????????????????????????????????
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// dont know whatz happening to the memory allocated here
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// we are getting AV when trying to free the memory allocated
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// in the call to WinStationGetAllProcesses
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// ????????????????????????????????????????????????????????????????
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m_pProcessInfo = NULL;
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}
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}
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}
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// check whether we need services info or not
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if ( TRUE == m_bNeedServicesInfo )
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{
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// load the services
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bResult = LoadServicesInfo();
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// check the result
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if ( FALSE == bResult )
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{
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return FALSE;
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}
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}
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// check whether we need modules info or not
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if ( TRUE == m_bNeedModulesInfo )
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{
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// load the modules information
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bResult = LoadModulesInfo();
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// check the result
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if ( FALSE == bResult )
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{
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return FALSE;
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}
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}
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}
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catch( CHeap_Exception )
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{
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WMISaveError( E_OUTOFMEMORY );
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return FALSE;
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}
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// return
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return TRUE;
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}
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BOOL
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CTaskList::LoadModulesInfo(
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void
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)
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/*++
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Routine Description:
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Store module information of a process.
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Arguments:
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NONE
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Return Value:
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TRUE if success else FALSE is returned.
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--*/
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{
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// local variables
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HKEY hKey = NULL;
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LONG lReturn = 0;
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BOOL bResult = FALSE;
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BOOL bImagesObject = FALSE;
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BOOL bAddressSpaceObject = FALSE;
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PPERF_OBJECT_TYPE pot = NULL;
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// check whether we need the modules infor or not
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// NOTE: we need to load the performance data only in case if user is querying for remote system only
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if ( ( FALSE == m_bNeedModulesInfo ) || ( TRUE == m_bLocalSystem ) )
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{
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return TRUE;
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}
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try
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{
|
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// open the remote system performance data key
|
|
lReturn = RegConnectRegistry( m_strUNCServer, HKEY_PERFORMANCE_DATA, &hKey );
|
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if ( ERROR_SUCCESS != lReturn )
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{
|
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SetLastError( ( DWORD )lReturn );
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SaveLastError();
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return FALSE;
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}
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|
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// get the performance object ( images )
|
|
bResult = GetPerfDataBlock( hKey, L"740", &m_pdb );
|
|
if ( FALSE == bResult )
|
|
{
|
|
// close the registry key and return
|
|
RegCloseKey( hKey );
|
|
return FALSE;
|
|
}
|
|
|
|
// check the validity of the perf block
|
|
if ( 0 != StringCompare( m_pdb->Signature, L"PERF", FALSE, 4 ) )
|
|
{
|
|
// close the registry key and return
|
|
RegCloseKey( hKey );
|
|
|
|
// set the error message
|
|
SetLastError( ( DWORD )ERROR_ACCESS_DENIED );
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// close the registry key and return
|
|
RegCloseKey( hKey );
|
|
|
|
//
|
|
// check whether we got both 740 and 786 blocks or not
|
|
//
|
|
bImagesObject = FALSE;
|
|
bAddressSpaceObject = FALSE;
|
|
pot = (PPERF_OBJECT_TYPE) ( (LPBYTE) m_pdb + m_pdb->HeaderLength );
|
|
for( DWORD dw = 0; dw < m_pdb->NumObjectTypes; dw++ )
|
|
{
|
|
if ( 740 == pot->ObjectNameTitleIndex )
|
|
{
|
|
bImagesObject = TRUE;
|
|
}
|
|
else
|
|
{
|
|
if ( 786 == pot->ObjectNameTitleIndex )
|
|
{
|
|
bAddressSpaceObject = TRUE;
|
|
}
|
|
}
|
|
// move to the next object
|
|
if( 0 != pot->TotalByteLength )
|
|
{
|
|
pot = ( (PPERF_OBJECT_TYPE) ((PBYTE) pot + pot->TotalByteLength));
|
|
}
|
|
}
|
|
}
|
|
catch( CHeap_Exception )
|
|
{
|
|
WMISaveError( E_OUTOFMEMORY );
|
|
if( NULL != hKey )
|
|
{
|
|
RegCloseKey( hKey );
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
// check whether we got the needed objects or not
|
|
if ( ( FALSE == bImagesObject ) || ( FALSE == bAddressSpaceObject ) )
|
|
{
|
|
SetLastError( ( DWORD )ERROR_ACCESS_DENIED );
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// return
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
BOOL
|
|
CTaskList::LoadUserNameFromWinsta(
|
|
OUT CHString& strDomain,
|
|
OUT CHString& strUserName
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
Store username of a process obtained from window station.
|
|
|
|
Arguments:
|
|
OUT strDomain : Contains domain name string.
|
|
OUT strUserName : Contains username string.
|
|
Return Value:
|
|
TRUE if success else FALSE is returned.
|
|
--*/
|
|
{
|
|
// local variables
|
|
PSID pSid = NULL;
|
|
BOOL bResult = FALSE;
|
|
LPWSTR pwszUser = NULL;
|
|
LPWSTR pwszDomain = NULL;
|
|
LPCWSTR pwszServer = NULL;
|
|
DWORD dwUserLength = 0;
|
|
DWORD dwDomainLength = 0;
|
|
SID_NAME_USE siduse;
|
|
|
|
// check whether winsta data exists or not
|
|
if ( NULL == m_pProcessInfo )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
try
|
|
{
|
|
// allocate buffers
|
|
dwUserLength = 128;
|
|
dwDomainLength = 128;
|
|
pwszUser = strUserName.GetBufferSetLength( dwUserLength );
|
|
pwszDomain = strDomain.GetBufferSetLength( dwDomainLength );
|
|
|
|
//
|
|
// find for the appropriate the process
|
|
pSid = NULL;
|
|
if ( FALSE == m_bIsHydra )
|
|
{
|
|
// sub-local variables
|
|
PTS_ALL_PROCESSES_INFO ptsallpi = NULL;
|
|
PTS_SYSTEM_PROCESS_INFORMATION pspi = NULL;
|
|
|
|
// loop ...
|
|
ptsallpi = (PTS_ALL_PROCESSES_INFO) m_pProcessInfo;
|
|
for( ULONG ul = 0; ul < m_ulNumberOfProcesses; ul++ )
|
|
{
|
|
pspi = ( PTS_SYSTEM_PROCESS_INFORMATION )( ptsallpi[ ul ].pspiProcessInfo );
|
|
if ( pspi->UniqueProcessId == m_dwProcessId )
|
|
{
|
|
// get the SID and convert it into
|
|
pSid = ptsallpi[ ul ].pSid;
|
|
break; // break from the loop
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//
|
|
// HYDRA ...
|
|
//
|
|
|
|
// sub-local variables
|
|
DWORD dwTotalOffset = 0;
|
|
PTS_SYSTEM_PROCESS_INFORMATION pspi = NULL;
|
|
PCITRIX_PROCESS_INFORMATION pcpi = NULL;
|
|
|
|
// traverse thru the process info and find the process id
|
|
dwTotalOffset = 0;
|
|
pspi = ( PTS_SYSTEM_PROCESS_INFORMATION ) m_pProcessInfo;
|
|
for( ;; )
|
|
{
|
|
// check the processid
|
|
if ( pspi->UniqueProcessId == m_dwProcessId )
|
|
{
|
|
break;
|
|
}
|
|
// check whether any more processes exist or not
|
|
if( 0 == pspi->NextEntryOffset )
|
|
{
|
|
break;
|
|
}
|
|
// position to the next process info
|
|
dwTotalOffset += pspi->NextEntryOffset;
|
|
pspi = (PTS_SYSTEM_PROCESS_INFORMATION) &m_pProcessInfo[ dwTotalOffset ];
|
|
}
|
|
|
|
// get the citrix_information which follows the threads
|
|
pcpi = (PCITRIX_PROCESS_INFORMATION)
|
|
( ((PUCHAR) pspi) + sizeof( TS_SYSTEM_PROCESS_INFORMATION ) +
|
|
(sizeof( SYSTEM_THREAD_INFORMATION ) * pspi->NumberOfThreads) );
|
|
|
|
// check the magic number .. if it is not valid ... we haven't got SID
|
|
if( CITRIX_PROCESS_INFO_MAGIC == pcpi->MagicNumber )
|
|
{
|
|
pSid = pcpi->ProcessSid;
|
|
}
|
|
}
|
|
|
|
// check the sid value
|
|
if ( NULL == pSid )
|
|
{
|
|
// SPECIAL CASE:
|
|
// -------------
|
|
// PID -> 0 will have a special hard coded user name info
|
|
if ( 0 == m_dwProcessId )
|
|
{
|
|
bResult = TRUE;
|
|
lstrcpynW( pwszUser, PID_0_USERNAME, dwUserLength );
|
|
lstrcpynW( pwszDomain, PID_0_DOMAIN, dwDomainLength );
|
|
}
|
|
|
|
// release the buffer
|
|
strDomain.ReleaseBuffer();
|
|
strUserName.ReleaseBuffer();
|
|
return bResult;
|
|
}
|
|
|
|
// determine the server
|
|
pwszServer = NULL;
|
|
if ( FALSE == m_bLocalSystem )
|
|
{
|
|
pwszServer = m_strUNCServer;
|
|
}
|
|
// map the sid to the user name
|
|
bResult = LookupAccountSid( pwszServer, pSid,
|
|
pwszUser, &dwUserLength, pwszDomain, &dwDomainLength, &siduse );
|
|
|
|
// release the buffer
|
|
strDomain.ReleaseBuffer();
|
|
strUserName.ReleaseBuffer();
|
|
}
|
|
catch( CHeap_Exception )
|
|
{
|
|
WMISaveError( E_OUTOFMEMORY );
|
|
return FALSE;
|
|
}
|
|
// return the result
|
|
return bResult;
|
|
}
|
|
|
|
|
|
BOOL
|
|
CTaskList::LoadServicesInfo(
|
|
void
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
Store service infomration of a process.
|
|
|
|
Arguments:
|
|
NONE
|
|
|
|
Return Value:
|
|
TRUE if success else FALSE is returned.
|
|
--*/
|
|
{
|
|
// local variables
|
|
DWORD dw = 0; // looping variable
|
|
DWORD dwSize = 0; // used in memory allocation
|
|
DWORD dwResume = 0; // used in EnumServicesStatusEx
|
|
BOOL bResult = FALSE; // captures the result of EnumServicesStatusEx
|
|
SC_HANDLE hScm = NULL; // holds the handle to the service
|
|
DWORD dwExtraNeeded = 0; // used in EnumServicesStatusEx and memory allocation
|
|
LPCWSTR pwszServer = NULL;
|
|
LPENUM_SERVICE_STATUS_PROCESS pInfo = NULL; // holds the services info
|
|
|
|
// Initialize the output parameter(s).
|
|
m_dwServicesCount = 0;
|
|
m_pServicesInfo = NULL;
|
|
|
|
// check whether we need to load the services info or not
|
|
if ( FALSE == m_bNeedServicesInfo )
|
|
{
|
|
return TRUE;
|
|
}
|
|
// determine the server
|
|
pwszServer = NULL;
|
|
if ( FALSE == m_bLocalSystem )
|
|
{
|
|
pwszServer = m_strUNCServer;
|
|
}
|
|
|
|
try
|
|
{
|
|
// Connect to the service controller and check the result
|
|
hScm = OpenSCManager( pwszServer, NULL, SC_MANAGER_CONNECT | SC_MANAGER_ENUMERATE_SERVICE );
|
|
if ( NULL == hScm )
|
|
{
|
|
// set the reason for the failure and return from here itself
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// enumerate the names of the active win32 services
|
|
// for this, first pass through the loop and allocate memory from an initial guess. (4K)
|
|
// if that isn't sufficient, we make another pass and allocate
|
|
// what is actually needed.
|
|
// (we only go through the loop a maximum of two times)
|
|
dw = 0; // no. of loops
|
|
dwResume = 0; // reset / initialize variables
|
|
dwSize = 4 * 1024; // reset / initialize variables
|
|
while ( 2 >= ++dw )
|
|
{
|
|
// set the size
|
|
dwSize += dwExtraNeeded;
|
|
|
|
// allocate memory for storing services information
|
|
pInfo = ( LPENUM_SERVICE_STATUS_PROCESS ) AllocateMemory( dwSize );
|
|
if ( NULL == pInfo )
|
|
{
|
|
// failed in allocating needed memory ... error
|
|
SetLastError( ( DWORD )E_OUTOFMEMORY );
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// enumerate services, the process identifier and additional flags for the service
|
|
dwResume = 0; // lets get all the services again
|
|
bResult = EnumServicesStatusEx( hScm, SC_ENUM_PROCESS_INFO, SERVICE_WIN32,
|
|
SERVICE_ACTIVE, ( LPBYTE ) pInfo, dwSize, &dwExtraNeeded, &m_dwServicesCount, &dwResume, NULL );
|
|
|
|
// check the result of the enumeration
|
|
if ( TRUE == bResult )
|
|
{
|
|
// successfully enumerated all the services information
|
|
break; // jump out of the loop
|
|
}
|
|
|
|
// first free the allocated memory
|
|
FreeMemory( ( LPVOID * ) &pInfo );
|
|
|
|
// now lets look at what is the error
|
|
if ( ERROR_MORE_DATA == GetLastError() )
|
|
{
|
|
// some more services are not listed because of less memory
|
|
// allocate some more memory and enumerate the remaining services info
|
|
continue;
|
|
}
|
|
else
|
|
{
|
|
// some strange error occured ... inform the same to the caller
|
|
SaveLastError(); // set the reason for the failure
|
|
CloseServiceHandle( hScm ); // close the handle to the service
|
|
return FALSE; // inform failure
|
|
}
|
|
}
|
|
}
|
|
catch( CHeap_Exception )
|
|
{
|
|
if( NULL != hScm )
|
|
{
|
|
CloseServiceHandle( hScm ); // close the handle to the service
|
|
}
|
|
WMISaveError( E_OUTOFMEMORY );
|
|
return FALSE;
|
|
}
|
|
// check whether there any services or not ... if services count is zero, free the memory
|
|
if ( 0 == m_dwServicesCount )
|
|
{
|
|
// no services exists
|
|
FreeMemory( ( LPVOID * ) &pInfo );
|
|
}
|
|
else
|
|
{
|
|
// set the local pointer to the out parameter
|
|
m_pServicesInfo = pInfo;
|
|
}
|
|
|
|
// inform success
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
BOOL
|
|
GetPerfDataBlock(
|
|
IN HKEY hKey,
|
|
IN LPWSTR pwszObjectIndex,
|
|
IN PPERF_DATA_BLOCK* ppdb
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
Rertieve performance data block.
|
|
|
|
Arguments:
|
|
[in] hKey : Contains handle to registry key.
|
|
[in] pwszObjectIndex : Contains index value of an object.
|
|
[out] ppdb : Contains performance data.
|
|
|
|
Return Value:
|
|
TRUE if success else FALSE is returned.
|
|
--*/
|
|
{
|
|
// local variables
|
|
LONG lReturn = 0;
|
|
DWORD dwBytes = 0;
|
|
BOOL bResult = FALSE;
|
|
|
|
// check the input parameters
|
|
if ( ( NULL == pwszObjectIndex ) ||
|
|
( NULL != *ppdb ) ||
|
|
( NULL == ppdb ) )
|
|
{
|
|
return FALSE;
|
|
}
|
|
// allocate memory for PERF_DATA_BLOCK
|
|
dwBytes = 32 * 1024; // initially allocate for 32 K
|
|
*ppdb = (PPERF_DATA_BLOCK) AllocateMemory( dwBytes );
|
|
if( NULL == *ppdb )
|
|
{
|
|
SetLastError( ( DWORD )E_OUTOFMEMORY );
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// get performance data on passed Object
|
|
lReturn = RegQueryValueEx( hKey, pwszObjectIndex, NULL, NULL, (LPBYTE) *ppdb, &dwBytes );
|
|
while( ERROR_MORE_DATA == lReturn )
|
|
{
|
|
// increase memory by 8 K
|
|
dwBytes += 8192;
|
|
|
|
// since we are attempting to re-allocate the memory -- and in that process
|
|
// some uncertain memory manipulations might occur -- for that reason,
|
|
// instead of trying to re-allocate memory, release the current memory and
|
|
// try to allocate if fresh
|
|
FreeMemory( ( LPVOID * ) ppdb );
|
|
|
|
// now allocate some more memory
|
|
*ppdb = NULL;
|
|
*ppdb = (PPERF_DATA_BLOCK) AllocateMemory( dwBytes );
|
|
if( NULL == *ppdb )
|
|
{
|
|
SetLastError( ( DWORD )E_OUTOFMEMORY );
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// try to get the info again
|
|
lReturn = RegQueryValueEx( hKey, pwszObjectIndex, NULL, NULL, (LPBYTE) *ppdb, &dwBytes );
|
|
}
|
|
|
|
// check the reason for coming out of the loop
|
|
bResult = TRUE;
|
|
if ( ERROR_SUCCESS != lReturn )
|
|
{
|
|
if ( NULL != *ppdb)
|
|
{
|
|
FreeMemory( ( LPVOID * ) ppdb );
|
|
*ppdb = NULL;
|
|
}
|
|
|
|
// save the error info
|
|
bResult = FALSE;
|
|
SetLastError( ( DWORD )lReturn );
|
|
SaveLastError();
|
|
}
|
|
|
|
// return the result
|
|
return bResult;
|
|
}
|
|
|
|
|
|
BOOL
|
|
CALLBACK EnumWindowStationsFunc(
|
|
IN LPTSTR lpstr,
|
|
IN LPARAM lParam
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
Enumerates the desktops available on a particular window station
|
|
This is a CALLBACK function ... called by EnumWindowStations API function
|
|
|
|
Arguments:
|
|
[ in ] lpstr : window station name
|
|
[ in ] lParam : user supplied parameter to this function
|
|
in this function, this points to TTASKSLIST structure variable
|
|
|
|
Return Value:
|
|
TRUE upon success and FALSE on failure
|
|
--*/
|
|
{
|
|
// local variables
|
|
HWINSTA hWinSta = NULL;
|
|
HWINSTA hwinstaSave = NULL;
|
|
PTWINDOWTITLES pWndTitles = ( PTWINDOWTITLES ) lParam;
|
|
|
|
// check the input arguments
|
|
if ( ( NULL == lpstr ) || ( NULL == lParam ) )
|
|
{
|
|
return FALSE;
|
|
}
|
|
// get and save the current window station
|
|
hwinstaSave = GetProcessWindowStation();
|
|
|
|
// open current tasks window station and change the context to the new workstation
|
|
hWinSta = OpenWindowStation( lpstr, FALSE, MAXIMUM_ALLOWED );
|
|
if ( NULL == hWinSta )
|
|
{
|
|
// failed in getting the process window station
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
else
|
|
{
|
|
// change the context to the new workstation
|
|
if ( ( hWinSta != hwinstaSave ) && ( FALSE == SetProcessWindowStation( hWinSta ) ) )
|
|
{
|
|
// failed in changing the context
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// release the memory allocated for earlier window station
|
|
if ( NULL != pWndTitles->lpWinsta )
|
|
{
|
|
free( pWndTitles->lpWinsta );
|
|
pWndTitles->lpWinsta = NULL;
|
|
}
|
|
|
|
// store the window station name
|
|
pWndTitles->lpWinsta = _tcsdup( lpstr );
|
|
if ( NULL == pWndTitles->lpWinsta )
|
|
{
|
|
SetLastError( ( DWORD )E_OUTOFMEMORY );
|
|
SaveLastError();
|
|
// restore the context to the previous windowstation
|
|
if (hWinSta != hwinstaSave)
|
|
{
|
|
SetProcessWindowStation( hwinstaSave );
|
|
CloseWindowStation( hWinSta );
|
|
}
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
// enumerate all the desktops for this windowstation
|
|
EnumDesktops( hWinSta, EnumDesktopsFunc, lParam );
|
|
|
|
// restore the context to the previous windowstation
|
|
if (hWinSta != hwinstaSave)
|
|
{
|
|
SetProcessWindowStation( hwinstaSave );
|
|
CloseWindowStation( hWinSta );
|
|
}
|
|
|
|
// continue the enumeration
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
BOOL
|
|
CALLBACK EnumDesktopsFunc(
|
|
IN LPTSTR lpstr,
|
|
IN LPARAM lParam
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
Enumerates the windows on a particular desktop
|
|
This is a CALLBACK function ... called by EnumDesktops API function
|
|
|
|
Arguments:
|
|
[ in ] lpstr : desktop name
|
|
[ in ] lParam : user supplied parameter to this function
|
|
in this function, this points to TTASKSLIST structure variable
|
|
|
|
Return Value:
|
|
TRUE upon success and FALSE on failure
|
|
--*/
|
|
{
|
|
// local variables
|
|
HDESK hDesk = NULL;
|
|
HDESK hdeskSave = NULL;
|
|
PTWINDOWTITLES pWndTitles = ( PTWINDOWTITLES )lParam;
|
|
|
|
// check the input arguments
|
|
if ( ( NULL == lpstr ) || ( NULL == lParam ) )
|
|
{
|
|
return FALSE;
|
|
}
|
|
// get and save the current desktop
|
|
hdeskSave = GetThreadDesktop( GetCurrentThreadId() );
|
|
|
|
// open the tasks desktop and change the context to the new desktop
|
|
hDesk = OpenDesktop( lpstr, 0, FALSE, MAXIMUM_ALLOWED );
|
|
if ( NULL == hDesk )
|
|
{
|
|
// failed in getting the process desktop
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
else
|
|
{
|
|
// change the context to the new desktop
|
|
if ( ( hDesk != hdeskSave ) && ( FALSE == SetThreadDesktop( hDesk ) ) )
|
|
{
|
|
// failed in changing the context
|
|
SaveLastError();
|
|
return FALSE;
|
|
}
|
|
|
|
// release the memory allocated for earlier window station
|
|
if ( NULL != pWndTitles->lpDesk )
|
|
{
|
|
free( pWndTitles->lpDesk );
|
|
pWndTitles->lpDesk = NULL;
|
|
}
|
|
|
|
// store the desktop name
|
|
pWndTitles->lpDesk = _tcsdup( lpstr );
|
|
if ( NULL == pWndTitles->lpDesk )
|
|
{
|
|
SetLastError( ( DWORD )E_OUTOFMEMORY );
|
|
SaveLastError();
|
|
// restore the previous desktop
|
|
if ( hDesk != hdeskSave )
|
|
{
|
|
SetThreadDesktop( hdeskSave );
|
|
CloseDesktop( hDesk );
|
|
}
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
// enumerate all windows in the new desktop
|
|
// first try to get only the top level windows and visible windows only
|
|
( ( PTWINDOWTITLES ) lParam )->bFirstLoop = TRUE;
|
|
EnumWindows( ( WNDENUMPROC ) EnumWindowsProc, lParam );
|
|
EnumMessageWindows( ( WNDENUMPROC ) EnumWindowsProc, lParam );
|
|
|
|
// enumerate all windows in the new desktop
|
|
// now try to get window titles of all those processes whose we ignored earlier while
|
|
// looping first time
|
|
( ( PTWINDOWTITLES ) lParam )->bFirstLoop = FALSE;
|
|
EnumWindows( ( WNDENUMPROC ) EnumWindowsProc, lParam );
|
|
EnumMessageWindows( ( WNDENUMPROC ) EnumWindowsProc, lParam );
|
|
|
|
// restore the previous desktop
|
|
if ( hDesk != hdeskSave )
|
|
{
|
|
SetThreadDesktop( hdeskSave );
|
|
CloseDesktop( hDesk );
|
|
}
|
|
|
|
// continue enumeration
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
BOOL
|
|
CALLBACK EnumMessageWindows(
|
|
IN WNDENUMPROC lpEnumFunc,
|
|
IN LPARAM lParam
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
Enumerates the message windows
|
|
|
|
Arguments:
|
|
[ in ] lpEnumFunc : address of call back function that has to be called for
|
|
each message window found
|
|
[ in ] lParam : user supplied parameter to this function
|
|
in this function, this points to TTASKSLIST structure variable
|
|
|
|
Return Value:
|
|
TRUE upon success and FALSE on failure
|
|
--*/
|
|
{
|
|
// local variables
|
|
HWND hWnd = NULL;
|
|
BOOL bResult = FALSE;
|
|
|
|
// check the input arguments
|
|
if ( ( NULL == lpEnumFunc ) || ( NULL == lParam ) )
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
// enumerate all the message windows
|
|
do
|
|
{
|
|
// find the message window
|
|
hWnd = FindWindowEx( HWND_MESSAGE, hWnd, NULL, NULL );
|
|
|
|
// check whether we got the handle to the message window or not
|
|
if ( NULL != hWnd )
|
|
{
|
|
// explicitly call the windows enumerators call back function for this window
|
|
bResult = ( *lpEnumFunc )( hWnd, lParam );
|
|
|
|
// check the result of the enumeator call back function
|
|
if ( FALSE == bResult )
|
|
{
|
|
// terminate the enumeration
|
|
break;
|
|
}
|
|
}
|
|
} while ( NULL != hWnd );
|
|
|
|
// return the enumeration result
|
|
return bResult;
|
|
}
|
|
|
|
|
|
BOOL
|
|
CALLBACK EnumWindowsProc(
|
|
IN HWND hWnd,
|
|
IN LPARAM lParam
|
|
)
|
|
/*++
|
|
Routine Description:
|
|
call back called by the API for each window
|
|
retrives the window title and updates the accordingly
|
|
|
|
Arguments:
|
|
[ in ] hWnd : handle to the window
|
|
[ in ] lParam : user supplied parameter to this function
|
|
in this function, this points to TTASKSLIST structure variable
|
|
|
|
Return Value:
|
|
TRUE upon success and FALSE on failure
|
|
--*/
|
|
{
|
|
// local variables
|
|
LONG lIndex = 0;
|
|
DWORD dwPID = 0;
|
|
BOOL bVisible = FALSE;
|
|
BOOL bHung = FALSE;
|
|
TARRAY arrWindows = NULL;
|
|
PTWINDOWTITLES pWndTitles = NULL;
|
|
WCHAR szWindowTitle[ 256 ] = NULL_STRING;
|
|
|
|
// check the input arguments
|
|
if ( ( NULL == hWnd ) || ( NULL == lParam ) )
|
|
{
|
|
return FALSE;
|
|
}
|
|
// get the values from the lParam
|
|
pWndTitles = ( PTWINDOWTITLES ) lParam;
|
|
arrWindows = pWndTitles->arrWindows;
|
|
|
|
// get the processid for this window
|
|
if ( 0 == GetWindowThreadProcessId( hWnd, &dwPID ) )
|
|
{
|
|
// failed in getting the process id
|
|
return TRUE; // return but, proceed enumerating other window handle
|
|
}
|
|
|
|
// get the visibility state of the window
|
|
// if the window is not visible, and if this is the first we are enumerating the
|
|
// window titles, ignore this process
|
|
bVisible = GetWindowLong( hWnd, GWL_STYLE ) & WS_VISIBLE;
|
|
if ( ( FALSE == bVisible ) && ( TRUE == pWndTitles->bFirstLoop ) )
|
|
{
|
|
return TRUE; // return but, proceed enumerating other window handle
|
|
}
|
|
// check whether the current window ( for which we have the handle )
|
|
// is main window or not. we don't need child windows
|
|
if ( NULL != GetWindow(hWnd, GW_OWNER) )
|
|
{
|
|
// the current window handle is not for a top level window
|
|
return TRUE; // return but, proceed enumerating other window handle
|
|
}
|
|
|
|
// check if we are already got the window handle for the curren process or not
|
|
// save it only if we are not having it
|
|
lIndex = DynArrayFindDWORDEx( arrWindows, CTaskList::twiProcessId, dwPID );
|
|
if ( -1 == lIndex )
|
|
{
|
|
// window for this process is not there ... save it
|
|
lIndex = DynArrayAppendRow( arrWindows, CTaskList::twiCOUNT );
|
|
}
|
|
else
|
|
{
|
|
// check whether window details already exists or not
|
|
if ( NULL != DynArrayItemAsHandle2( arrWindows, lIndex, CTaskList::twiHandle ) )
|
|
{
|
|
lIndex = -1; // window details already exists
|
|
}
|
|
}
|
|
|
|
// check if window details has to be saved or not ... if needed save them
|
|
if ( -1 != lIndex )
|
|
{
|
|
// check whether the application associated with this windows
|
|
// responding ( or ) not responding
|
|
bHung = IsHungAppWindow( hWnd );
|
|
|
|
// save the data
|
|
DynArraySetHandle2( arrWindows, lIndex, CTaskList::twiHandle, hWnd );
|
|
DynArraySetBOOL2( arrWindows, lIndex, CTaskList::twiHungInfo, bHung );
|
|
DynArraySetDWORD2( arrWindows, lIndex, CTaskList::twiProcessId, dwPID );
|
|
DynArraySetString2( arrWindows, lIndex,
|
|
CTaskList::twiWinSta, pWndTitles->lpWinsta, 0 );
|
|
DynArraySetString2( arrWindows, lIndex,
|
|
CTaskList::twiDesktop, pWndTitles->lpDesk, 0 );
|
|
|
|
// get and save the window title
|
|
if ( 0 != GetWindowText( hWnd, szWindowTitle, SIZE_OF_ARRAY( szWindowTitle ) ) )
|
|
{
|
|
DynArraySetString2( arrWindows, lIndex, CTaskList::twiTitle, szWindowTitle, 0 );
|
|
}
|
|
}
|
|
|
|
// continue the enumeration
|
|
return TRUE;
|
|
}
|