Re: Bad leaks file fd to child processes

[Alexey]

On 2022-11-28 14:20, Koichi Murase wrote:
> 2022年11月28日(月) 19:06 Alexey via Bug reports for the GNU Bourne Again
> SHell <bug-bash@gnu.org>:
> > But we use the fact tat bash doesn't close FD for example to 
> > preliminary
> > open log file for utility that we will `exec' later.
> > Unfortunately bash doesn't provide any fcntl() mechanism to control FD
> > flags.
> > It'll be great to have  ability to manage CLOEXEC or any other FD 
> > flags
> > from the script.
>
> There is a loadable builtin `fdflags' to do that. If the loadable
> builtin is installed (e.g. at /usr/lib/bash/fdflags), we can do
> something like
>
> enable -f /usr/lib/bash/fdflags fdflags
> fdflags -s +cloexec <fd>
>
> --
> Koichi

Many thanks for the example.
But, I still have a lot of prod with bash 4.4 (I guess I could build 
fdflags for 4.4 myself)

Regards,
Alexey