Fix infinite loop bug

[kfur]

Resolve #425

[kfur]

To be honest, I don't understand why do we need while loop there? Anyway it will cause infinite loop if gettaddrinfo return ipv6 address while host doesn't have ipv6 interface

[jakirkham]

Just as clueless, but perhaps it was intended for the for-loop (maybe it was even there before the while-loop was added)

[fantix]

Thanks for the PR and comments!

The first commit was actually pretty clear:

https://github.com/MagicStack/uvloop/commit/2c61d5d3831676a04a33b117e77b782491cd6765#diff-a7cf5c98d355cbec45134d87daf36ebe5dea13c052e6098ca5331fedebfd6b8cR704-R712

So I think we should do:

        addrinfo = addrinfo.ai_next
        continue

rather than a single continue or break. I haven't verified or tested though.

[kfur]

Yep, this work well