endproc.h File Reference

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Functions
void	ProcessPage_OnEndProcess (void)
BOOL	IsCriticalProcess (HANDLE hProcess)
void	ProcessPage_OnEndProcessTree (void)

Function Documentation

IsCriticalProcess()

BOOL IsCriticalProcess

(

HANDLE

hProcess

)

Definition at line 68 of file endproc.c.

{
    NTSTATUS status;
    ULONG BreakOnTermination;
 
    /* return early if the process handle does not exist */
    if (!hProcess)
        return FALSE;
 
    /* the important system processes that we don't want to let the user
       kill come marked as critical, this simplifies the check greatly.
 
       a critical process brings the system down when is terminated:
       <http://www.geoffchappell.com/studies/windows/win32/ntdll/api/rtl/peb/setprocessiscritical.htm> */
 
    status = NtQueryInformationProcess(hProcess,
                                       ProcessBreakOnTermination,
                                       &BreakOnTermination,
                                       sizeof(ULONG),
                                       NULL);
 
    if (NT_SUCCESS(status) && BreakOnTermination)
        return TRUE;
 
    return FALSE;
}

Referenced by ProcessPage_OnEndProcess(), ProcessPage_OnEndProcessTree(), and ShutdownProcessTreeHelper().

ProcessPage_OnEndProcess()

void ProcessPage_OnEndProcess

(

void

)

Definition at line 15 of file endproc.c.

{
    DWORD   dwProcessId;
    HANDLE  hProcess;
    WCHAR   szTitle[256];
    WCHAR   strErrorText[260];
 
    dwProcessId = GetSelectedProcessId();
 
    if (dwProcessId == 0)
        return;
 
    hProcess = OpenProcess(PROCESS_TERMINATE | PROCESS_QUERY_INFORMATION, FALSE, dwProcessId);
 
    /* forbid killing system processes even if we have privileges -- sigh, windows kludge! */
    if (hProcess && IsCriticalProcess(hProcess))
    {
        LoadStringW(hInst, IDS_MSG_UNABLETERMINATEPRO, szTitle, 256);
        LoadStringW(hInst, IDS_MSG_CLOSESYSTEMPROCESS, strErrorText, 256);
        MessageBoxW(hMainWnd, strErrorText, szTitle, MB_OK|MB_ICONWARNING|MB_TOPMOST);
        CloseHandle(hProcess);
        return;
    }
 
    /* if this is a standard process just ask for confirmation before doing it */
    LoadStringW(hInst, IDS_MSG_WARNINGTERMINATING, strErrorText, 256);
    LoadStringW(hInst, IDS_MSG_TASKMGRWARNING, szTitle, 256);
    if (MessageBoxW(hMainWnd, strErrorText, szTitle, MB_YESNO|MB_ICONWARNING|MB_TOPMOST) != IDYES)
    {
        if (hProcess) CloseHandle(hProcess);
        return;
    }
 
    /* no such process or not enough privileges to open its token */
    if (!hProcess)
    {
        GetLastErrorText(strErrorText, 260);
        LoadStringW(hInst, IDS_MSG_UNABLETERMINATEPRO, szTitle, 256);
        MessageBoxW(hMainWnd, strErrorText, szTitle, MB_OK|MB_ICONSTOP|MB_TOPMOST);
        return;
    }
 
    /* try to kill it, and notify the user if didn't work */
    if (!TerminateProcess(hProcess, 1))
    {
        GetLastErrorText(strErrorText, 260);
        LoadStringW(hInst, IDS_MSG_UNABLETERMINATEPRO, szTitle, 256);
        MessageBoxW(hMainWnd, strErrorText, szTitle, MB_OK|MB_ICONSTOP|MB_TOPMOST);
    }
 
    CloseHandle(hProcess);
}

Referenced by ApplicationPageWndProc(), ProcessPageOnNotify(), ProcessPageWndProc(), and TaskManagerWndProc().

ProcessPage_OnEndProcessTree()

void ProcessPage_OnEndProcessTree

(

void

)

Definition at line 146 of file endproc.c.

{
    DWORD   dwProcessId;
    HANDLE  hProcess;
    WCHAR   szTitle[256];
    WCHAR   strErrorText[260];
 
    dwProcessId = GetSelectedProcessId();
 
    if (dwProcessId == 0)
        return;
 
    hProcess = OpenProcess(PROCESS_TERMINATE | PROCESS_QUERY_INFORMATION, FALSE, dwProcessId);
 
    /* forbid killing system processes even if we have privileges -- sigh, windows kludge! */
    if (hProcess && IsCriticalProcess(hProcess))
    {
        LoadStringW(hInst, IDS_MSG_UNABLETERMINATEPRO, szTitle, 256);
        LoadStringW(hInst, IDS_MSG_CLOSESYSTEMPROCESS, strErrorText, 256);
        MessageBoxW(hMainWnd, strErrorText, szTitle, MB_OK|MB_ICONWARNING|MB_TOPMOST);
        CloseHandle(hProcess);
        return;
    }
 
    LoadStringW(hInst, IDS_MSG_WARNINGTERMINATING, strErrorText, 256);
    LoadStringW(hInst, IDS_MSG_TASKMGRWARNING, szTitle, 256);
    if (MessageBoxW(hMainWnd, strErrorText, szTitle, MB_YESNO|MB_ICONWARNING) != IDYES)
    {
        if (hProcess) CloseHandle(hProcess);
        return;
    }
 
    if (!hProcess)
    {
        GetLastErrorText(strErrorText, 260);
        LoadStringW(hInst, IDS_MSG_UNABLETERMINATEPRO, szTitle, 256);
        MessageBoxW(hMainWnd, strErrorText, szTitle, MB_OK|MB_ICONSTOP);
        return;
    }
 
    if (!ShutdownProcessTree(hProcess, dwProcessId))
    {
        GetLastErrorText(strErrorText, 260);
        LoadStringW(hInst, IDS_MSG_UNABLETERMINATEPRO, szTitle, 256);
        MessageBoxW(hMainWnd, strErrorText, szTitle, MB_OK|MB_ICONSTOP);
    }
 
    CloseHandle(hProcess);
}

Referenced by TaskManagerWndProc().