disable : Ctrl -C in the Kernel

disable : Ctrl -C in the Kernel

[Prabhu Chawandi]

Hi,

  I am running Some application at the end of rcS script file.

I need to disable Ctrl-c, i.e.  application should not kill after Ctrl-c.

and in some case I want Ctrl-C to work normally.

I am taking care in application about catching signal using signal(),
even then I think there is something from kernel side.

Can any one help ?????/

Thanks in advance
Prabhu

Re: disable : Ctrl -C in the Kernel

[Sven-Haegar Koch]

On Thu, 10 Sep 2009, Prabhu Chawandi wrote:

>   I am running Some application at the end of rcS script file.
> 
> I need to disable Ctrl-c, i.e.  application should not kill after Ctrl-c.
> 
> and in some case I want Ctrl-C to work normally.
> 
> I am taking care in application about catching signal using signal(),
> even then I think there is something from kernel side.
> 
> Can any one help ?????/

We are using the following command here in an rc script early at boot to 
disable Ctrl-C:

	stty intr ^@ quit ^@ susp ^@

c'ya
sven

-- 
The lights are fading out, once more...

Re: disable : Ctrl -C in the Kernel

[Prabhu Chawandi]

Thansk,

Do u know which is enabling it.

Coz, after adding the line told by u, I am not able to  disable, means
somewhere after this place its being enabled.



On Thu, Sep 10, 2009 at 3:59 PM, Sven-Haegar Koch <haegar@sdinet.de> wrote:
> On Thu, 10 Sep 2009, Prabhu Chawandi wrote:
>
>>   I am running Some application at the end of rcS script file.
>>
>> I need to disable Ctrl-c, i.e.  application should not kill after Ctrl-c.
>>
>> and in some case I want Ctrl-C to work normally.
>>
>> I am taking care in application about catching signal using signal(),
>> even then I think there is something from kernel side.
>>
>> Can any one help ?????/
>
> We are using the following command here in an rc script early at boot to
> disable Ctrl-C:
>
>        stty intr ^@ quit ^@ susp ^@
>
> c'ya
> sven
>
> --
> The lights are fading out, once more...
>

Re: disable : Ctrl -C in the Kernel

[Matt]

On Thu, 2009-09-10 at 16:07 +0530, Prabhu Chawandi wrote:
> Thansk,
> 
> Do u know which is enabling it.
> 
> Coz, after adding the line told by u, I am not able to  disable, means
> somewhere after this place its being enabled.
> 
> 

Firstly, this really isn't a kernel problem; this is the wrong list for
this kind of question.

Secondly, there are typically hundreds of processes started at boot
time, you'll need to check them to find out which is changing the
terminal settings. I would suggest hooking up strace to init somehow and
tracing all the ioctl()s to /dev/tty or /dev/console.

Matt