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Re: Sprint's slashes (was Re: Anybody from PSI?!?!?!)
From: dvv () sprint net (Dima Volodin)
Date: Fri, 3 Jan 1997 18:24:42 -0500 (EST)

Paul A Vixie writes:
On the other note - MHO is it was a Bad Idea to put these checks into the
resolver library. No objections towards having it as an option in the code
for primary zones in name servers, though.

We debated this for a long while.  It turns out that a lot of applications
don't check the results of the names they get back from gethostbyaddr(), and
that the architecturally pure solution would have meant letting these older
applications, and their users, burn.  I wasn't willing to do that.  There was
a CERT advisory about sendmail's queue files and PTR RRs that included \n
characters, but there was no CERT advisory about the various applications who
expand DNS names on shell command lines.  Yes, the authors of those scripts
should be shot.  (Especially whoever wrote Vixie Cron.)  But something would
have to be done about Java as well.  And who knew what else?  It was not worth
skewering the universe to maintain the purity of the design.  So, we put the
checking in at several levels.

Great. The joke is - all the old code I know worked well with the
status quo ante. (It might have been a conscious decision not to know
any code that wouldn't work, but it's a slightly different matter). So
do I understand rightly, that there are some criteria for incorporating
some bugs into the Internet (semi-)standards? Like, Vixie Cron scores
here, avg's db - doesn't?  Sendmail scores, Apple's resolver library
(the earlier versions, at least) not? (these are rhetorical quesions,
anyway) As of Java, the resolver part of its API is done with all the
Sun's cluefulness (if any) about DNS, so I wonder why you started
taking its (Sun's) antics into consideration now, and not when they
were trying to cross YP and DNS.

Check out draft-andrews-dns-hostnames-03.txt for more info on this subject.


Now let's get off the nanog list.

Dima
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