Re: [bug-gnulib] Incomplete getaddrinfo module

[Yoann Vandoorselaere]

On Thu, 2005-09-15 at 13:35 +0200, Bruno Haible wrote:
> Yoann Vandoorselaere wrote:
> > The getaddrinfo module in GnuLib will often result in broken application
> > behavior because it is really a simple replacement which fail to handle
> > very common getaddrinfo usage pattern.
> >
> > A common example of why it might fail is:
> >
> >   if (hints && (hints->ai_flags & ~AI_CANONNAME))
> >     /* FIXME: Support more flags. */
> >     return EAI_BADFLAGS;
> 
> If you say which flags your application needs to work, maybe Simon can
> do something about it?

For my own use, I simply remove this check. This is due to the use of
AI_PASSIVE or AI_ADDRCONFIG, which can not easily be implemented without
very specific support.


> > This is not right since it tend to break application that trust the
> > GnuLib module to provide a viable getaddrinfo replacement.
> 
> I agree. If we provide a function in gnulib, it should attempt to be an as
> complete replacement for the standard one as possible.
> 
> > What is people opinion concerning an eventual drop of the current module
> > to replace it by the GLIBC implementation ?
> 
> Have you looked at the glibc implementation of getaddrinfo? It's impossible.
> There's no way to make __nss_database_lookup work in the scope of gnulib.

Yes I did, and yes, we could not backport everything to GnuLib. Although
I think we could use a stripped version of the code.

-- 
Yoann Vandoorselaere <address@hidden>