DatagramChannel::disconnect appears to rebind socket to the wildcard address

[Alan Bateman]

On 25/09/2019 19:50, Kurt Miller wrote:
> :
> Yes, I have observed that bug on OpenBSD as well. It is indeed
> a kernel bug on OpenBSD. I have kernel patches to correct it
> but haven't pushed them forward through the review process there.
>
> I just did a quick test on FreeBSD 11 on amd64 and it also
> doesn't retain the bound address.
>
Thanks for confirming the issue on OpenBSD and also checking FreeBSD 
too. I'm curious if the issue in the OpenBSD kernel is something simple 
or whether this is a significant change. My guess is that this is an 
issue that could have lurked for years as not many applications or 
usages would observe the local address changing like this.

-Alan