perl: Net::DNS requires Win32::IPHelper

Corinna Vinschen corinna-cygwin@cygwin.com
Tue Aug 24 08:40:00 GMT 2010


On Aug 23 12:07, Yaakov S wrote:
> On Mon, 2010-08-23 at 16:07 +0200, Corinna Vinschen wrote:
> > Here's a question:
> > 
> > Why does the Net::DNS module, which provides only a resolver API, depend
> > on a Win32-related package at all?  Cygwin 1.7 provides a BSD compatible
> > resolver API (res_init, res_query, etc) which should be used, just like
> > on Linux.  Does the module erroneously treat Cygwin as Windows target?
> > If so, that should be fixed.
> 
> Net::DNS does not bind libresolv on *NIX; it does its own parsing
> of /etc/resolv.conf.  On Win32, it uses Win32::IPHelper's bindings of
> GetNetworkParams.
> 
> So this is YA resolver implementation.  When it came to BIND's liblwres,
> you asked that it use the Windows APIs in order to ore closely match our
> libresolv implementation and not require an /etc/resolv.conf.  The same
> would apply here as well.

Ok, right.  I still don't understand why it makes sense to implement
another resolver when the system resolver functions exist, though...


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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