Re: One of these things is not like the others

[Arien Vijn <arien () vijn net>]

> On May 24, 2017(21), at 21:23, Michael Richardson <mcr () sandelman ca> wrote:
>
> Guy Harris <guy () alum mit edu> wrote:
> > > Guy Harris <guy () alum mit edu> wrote:
> > >
> > > > Note that macOS's tcpdump has a -g flag ("g" for "greppable", more
> > > > greppable output being the purpose of the flag), which puts the IPv4
> > > > input back on one line:
> > >
> > > How can we move to this format?
>
> > To make that the default and only format, we'd just have to turn
>
> Yes... but are we going to screw people over with this change?

Most likely yes.

> > To add support for the -g flag, we'd just make that conditional at run time,
> > with a gflag field in the netdissect_options field.
>
> I'm thinking, can we just make it the default?

It is likely that textual output is being parsed by scripts in many many places. Those scripts may not work properly 
anymore when you change the default. 

I think that it is best to keep the current behaviour and make the output that is easier parsable optional with the -g 
flag. 

— Arien

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