From: Paul Brannan <pbrannan@...>
Date: 2002-09-03T04:15:07+09:00
Subject: Re: gethostbyname() requires reverse lookup to work?

On Sun, Sep 01, 2002 at 04:57:33AM +0900, Daniel Berger wrote:
> My point is, I think the code should be written so as not to worry about 
> those (very?) rare cases where it might fail with regards to IPv6.  I think 
> reverse lookups are likely to be a much more prevalent cause of failures.

The ideal solution, I think, is to use a resolver library that uses
rb_f_select() instead of select(); then we don't have any issues to
worry about with thread-safety and global variables and such.

Barring that solution, I suppose getaddrinfo() seems reasonable, but
using gethostbyaddr() to get a hostent* out of the addrinfo structure
does not.  Perhaps writing a function that can create the hostent*
directly from the addrinfo structure might work?

I don't know much about sockets or IPV6; what do most people do who have
to deal with IPv6 do to resolve addresses?

Paul