On Fri, 04 Feb 2022 at 15:38:12 +0100, Jakub Wilk wrote:
> * Julien Puydt <julien.pu...@gmail.com>, 2022-02-04, 12:34:
> > I got an RC bug on python-anyio, because its testsuite fails when run on
> > an IPv6-only host [1].
>
> I'm pretty sure "IPv6-only" means "the only non-loopback addresses this host
> has are IPv6", rather than "it doesn't have any IPv4, not even 127.0.0.1."
>
> This project uses AI_ADDRCONFIG: "IPv4 addresses are returned […] if the
> local system has at least one IPv4 address configured, […] The loopback
> address is not considered for this case as valid as a configured address."
>
> Somewhat surprisingly, this means that getaddrinfo("127.0.0.1", ...) can
> fail even when the 127.0.0.1 address exists.
See also: https://bugs.debian.org/952740, which I reported as a result
of the equivalent bug being reported for dbus.
smcv
