[PATCH] cmdline: configure input buffer size

[Stephen Hemminger]

On Wed, 1 May 2024 13:06:47 +0300 (IDT)
"Etelson, Gregory" <getelson at nvidia.com> wrote:

> > Basic question, what would be the impact of increasing the default from 512
> > to 1k or 2k? Do we get a large memory footprint increase, or is it just an
> > extra 1 or 2k of memory used?
> >
> > /Bruce
> >  
> 
> Increasing the RDLINE_BUF_SIZE size will also increase application memory usage.
> However, that memory increase was required, because application could not fit 
> it's command line into the default buffer.
> 
> Applications that can run with the default RDLINE_BUF_SIZE are not affected by 
> that patch.
> 
> Regards,
> Gregory


The buffer is transient so should have little impact.
Why not just use LINE_MAX from limits.h?