(usagi-users 03455) Re: getnameinfo() gets DNS non-recoverable error Solaris 2.8+

On Tue, Jul 26, 2005 at 09:07:11PM +0200, Ed Kapitein wrote:
> Hi Dave,
> 
> Perhaps you can debug it by using truss, a command to see how a program is 
> executed, and snoop, to trace network packets to and from the dnsserver.
> 
> For all the other questions i hope someone else can help :-)

Maybe I'm not the right person to respond either. In general I'm
not so sure DNS or other name lookup can be expected to work for
link-local, but I think getnameinfo() should return the address
when DNS fails (as if NI_NUMERICHOST is specified), unless it's
called with NI_NAMEREQD.

Stig

> 
> Kind regards,
> @
> 
> On Tuesday 26 July 2005 16:07, mclellan, dave wrote:
> > Hi all: DUMB QUESTION ALERT:
> >
> > if I call getnameinfo() with a sockaddr_in6 that describes a link-local
> > address on Solaris 2.8+,  it returns EAI_FAIL (DNS non-recoverable error).
> > The address is configured I the /etc/net/ipnodes file correctly, I think.
> > that is, I can find the address given the name, but can't find the name
> > given the address.
> >
> > 1) is this because it doesn't like link-local, and should I skip the
> > getnameinfo() if I know it's a link-local (translate the address by
> > inet_ntop for example).
> >
> > OR
> >
> > 2) should this work, and how might I best debug the DNS query to figure why
> > the configuration is wrong.
> >
> > Thanks for any hint.
> >
> >
> >
> > Dave McLellan --Consulting Software Engineer - SPEA Engineering
> > EMC Corporation
> > 228 South St. Mail Stop: 228 LL/AA-24
> > Hopkinton, MA 01748  USA
> > +1-508-249-1257 F: +1-508-497-8030  [email protected]
> >
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