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Re: Using apple resolver libraries

On May 9, 2004, at 23:10, Andrew White wrote:

Apple uses a special resolver / DNS client selection routine, as specified by resolver(5). Can someone point me at:

(1) Source code. I have libinfo, but it's rather opaque to cursory examination.

Perhaps resolver isn't what you want. Name resolution (except for programs like 'nslookup' and 'dig') occurs in lookupd. That is where the action is. The resolver library calls used by most programs just hand off the request to lookupd, which does its 'strategy' thing.

The "real" resolver code, along with that for "lookupd", lives in the netinfo project. I'm not sure where the resolver stub code lives.

(2) Documentation on how it works "inside".

Nope; don't know of any, beyond the man pages (which are pretty good and getting better), folklore, and the archives. Start with 'man lookupd'.

(3) Diffs from FreeBSD, or wherever the original base code came from.

Ha! The original code base is NeXTStep/OpenStep, and I don't know that the diffs would do you much good (if, indeed, they exist).

What are you after?

Cheers,

Justin

--
Justin C. Walker, Curmudgeon-At-Large *
Institute for General Semantics | If you're not confused,
| You're not paying attention
*--------------------------------------*-------------------------------*
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 >Using apple resolver libraries (From: Andrew White <email@hidden>)



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