Re: CVS commit: src/sys

[Matt Thomas <matt%3am-software.com@localhost>]

On Jun 5, 2013, at 7:24 AM, Greg Troxel <gdt%ir.bbn.com@localhost> wrote:

> 
> Jukka Ruohonen <jruohonen%iki.fi@localhost> writes:
> 
>> Ah, maybe IPv6-only hosts would be the rationale then. But as you noted, it
>> is not difficult to find cases like
>> 
>>      #ifdef INET
>>        ...
>>          #ifdef INET6
> 
> That's a bug; in theory one should be able to have INET6 without INET.
> I did try it once several years ago, and had some trouble that I didn't
> solve.

Not always.  Sometimes you need to check for an AF_INET6 socket in an
IPv4 path since you might be using mapped IPv4 addresses.