On 2024-07-12 03:05 -06, "Theo de Raadt" <deraadt@openbsd.org> wrote:
> Stuart Henderson <stu@spacehopper.org> wrote:
>
>> This change won't work directly as the following lines currently need 
>> blocking until dhcp has fetched an address but I don't think it's worth it. 
>
> Right.
>
> We have entered a world where dynamic address negotiation is async.
> But then, it always was.
>

Independent of the port at hand (which indeed should be nuked from
orbit), dhcpcleasctl(8) has this:

     -w maxwait
             Specify the maximum number of seconds to wait for interface to be
             configured.  The default is 10 seconds.

so running "dhcpleasctl $IF" waits max 10 seconds.

-w is parsed thusly:
maxwait = strtonum(optarg, 1, INT_MAX, &errstr);

... in case there is something else that absolutely wants to wait until
a lease has been configured.

-- 
In my defence, I have been left unsupervised.