Re: [PATCH net-next v3] selftests: forwarding: Reorder (ar)ping arguments to obey POSIX getopt

Petr Machata
2025-09-19T13:19:49Z

David Yang <mmyangfl@gmail.com> writes:

> Quoted from musl wiki:
>
> GNU getopt permutes argv to pull options to the front, ahead of
> non-option arguments. musl and the POSIX standard getopt stop
> processing options at the first non-option argument with no
> permutation.
>
> Thus these scripts stop working on musl since non-option arguments for
> tools using getopt() (in this case, (ar)ping) do not always come last.
> Fix it by reordering arguments.
>
> Signed-off-by: David Yang <mmyangfl@gmail.com>

Reviewed-by: Petr Machata <petrm@nvidia.com>