[PATCH] common: cli_hush: terminate all commands when Ctrl-C is pressed

[Quentin Schulz]

Hi Shiji Yang,

On 12/28/25 6:25 AM, Shiji Yang wrote:
> Check Ctrl-C status before executing each command in the pipeline so
> that the Ctrl-C can skip all subsequent commands. This should be the
> default behavior of most shells.
> 
> Before the change:
> ```
> => echo start; while true; do echo loop; sleep 1; done; echo int; if true; then echo if; fi; echo stop
> start
> loop
> loop	<-- Input Ctrl-C
> int
> if
> stop
> =>
> ```
> After the change:
> ```
> => echo start; while true; do echo loop; sleep 1; done; echo int; if true; then echo if; fi; echo stop
> start
> loop
> loop	<-- Input Ctrl-C
> ^C
> =>
> ```
> 
> Signed-off-by: Shiji Yang <yangshiji66 at outlook.com>
> ---
>   common/cli_hush.c | 21 +++++++++++++--------

I'm assuming we want the same behavior on all shells. So if this were to 
be merged, a similar implementation needs to be done for cli_hush_modern 
as well.

Any chance we can get a test for this in test/hush/? I don't know if we 
can send the ctrl-c keystroke (the pytest test suite can, but test/hush 
is C code...).

Cheers,
Quentin