//Closes the file handles in the processes which are using this file
void CloseRemoteFileHandles( LPCTSTR lpFileName )
{
CString deviceFileName;
CString fsFilePath;
CString name;
CString processName;
SystemHandleInformation hi;
SystemProcessInformation pi;
SystemProcessInformation::SYSTEM_PROCESS_INFORMATION* pPi;
//Convert it to device file name
if ( !SystemInfoUtils::GetDeviceFileName( lpFileName, deviceFileName ) )
{
//_tprintf( _T("GetDeviceFileName() failed.\n") );
return;
}
//Query every file handle (system wide)
if ( !hi.SetFilter( _T("File"), TRUE ) )
{
//_tprintf( _T("SystemHandleInformation::SetFilter() failed.\n") );
return;
}
if ( !pi.Refresh() )
{
//_tprintf( _T("SystemProcessInformation::Refresh() failed.\n") );
return;
}
//Iterate through the found file handles
for ( POSITION pos = hi.m_HandleInfos.GetHeadPosition(); pos != NULL; )
{
SystemHandleInformation::SYSTEM_HANDLE& h = hi.m_HandleInfos.GetNext(pos);
if ( !pi.m_ProcessInfos.Lookup( h.ProcessID, pPi ) )
continue;
if ( pPi == NULL )
continue;
//Get the process name
SystemInfoUtils::Unicode2CString( &pPi->usName, processName );
//NT4 Stupid thing if I query the name of a file in services.exe
//Messengr service brings up a message dialog ??? :(
if ( INtDll::dwNTMajorVersion == 4 && _tcsicmp( processName, _T("services.exe") ) == 0 )
continue;
//what's the file name for this given handle?
hi.GetName( (HANDLE)h.HandleNumber, name, h.ProcessID );
//This is what we want to delete, so close the handle
if ( _tcsicmp( name, deviceFileName ) == 0 )
CloseRemoteHandle( processName, h.ProcessID, (HANDLE)h.HandleNumber );
}
}
void WhoUsesFile( LPCTSTR lpFileName, BOOL bFullPathCheck )
{
BOOL bShow = FALSE;
CString name;
CString processName;
CString deviceFileName;
CString fsFilePath;
SystemProcessInformation::SYSTEM_PROCESS_INFORMATION* p;
SystemProcessInformation pi;
SystemHandleInformation hi;
if ( bFullPathCheck )
{
if ( !SystemInfoUtils::GetDeviceFileName( lpFileName, deviceFileName ) )
{
_tprintf( _T("GetDeviceFileName() failed.\n") );
return;
}
}
hi.SetFilter( _T("File"), TRUE );
if ( hi.m_HandleInfos.GetHeadPosition() == NULL )
{
_tprintf( _T("No handle information\n") );
return;
}
pi.Refresh();
_tprintf( _T("%-6s %-20s %s\n"), _T("PID"), _T("Name"), _T("Path") );
_tprintf( _T("------------------------------------------------------\n") );
for ( POSITION pos = hi.m_HandleInfos.GetHeadPosition(); pos != NULL; )
{
SystemHandleInformation::SYSTEM_HANDLE& h = hi.m_HandleInfos.GetNext(pos);
if ( pi.m_ProcessInfos.Lookup( h.ProcessID, p ) )
{
SystemInfoUtils::Unicode2CString( &p->usName, processName );
}
else
processName = "";
//NT4 Stupid thing if it is the services.exe and I call GetName :((
if ( INtDll::dwNTMajorVersion == 4 && _tcsicmp( processName, _T("services.exe" ) ) == 0 )
continue;
hi.GetName( (HANDLE)h.HandleNumber, name, h.ProcessID );
if ( bFullPathCheck )
bShow = _tcsicmp( name, deviceFileName ) == 0;
else
bShow = _tcsicmp( GetFileNamePosition(name), lpFileName ) == 0;
if ( bShow )
{
if ( !bFullPathCheck )
{
fsFilePath = "";
SystemInfoUtils::GetFsFileName( name, fsFilePath );
}
_tprintf( _T("0x%04X %-20s %s\n"),
h.ProcessID,
processName,
!bFullPathCheck ? fsFilePath : lpFileName );
}
}
}