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Groups > gnu.bash.bug > #11525

Re: SIGINT handling

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2015-09-21 17:35:36 +0200, Jilles Tjoelker:
[...]
> This kind of job control manipulation is very hard to get right in the
> general case. FreeBSD's su does it, and it needed various iterations to
> fix hanging processes or unexpected logouts, some of which only occur
> when the application is started from certain shells.
> 
> Also, it is not possible to fix generally cases like
>   su SOMEUSER -c 'while sleep 0.1; do echo @@@; done' | less
> where there are other processes in the same process group as the one
> doing job control manipulations. If su changes the tty's foreground
> process group, it will prevent less from reconfiguring terminal modes.
[...]

What was the rationale for adding that to "su"? I'd have
expected job control to be only done by interactive
applications. 

-- 
Stephane

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Re: SIGINT handling Stephane Chazelas <stephane.chazelas@gmail.com> - 2015-09-21 17:04 +0100

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