🚀 go-pugleaf

In <9016.8812102223@oba.cs.glasgow.ac.uk> taylor@cs.glasgow.ac.uk
(Jem Taylor) asks about:

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    554 hawaii.ether... 554 System file missing
    554 PAT@LEVA.ICF.LEEDS.AC.UK... System file missing

on a 4.3BSD MIPS/1000 system run as an YP server.

Andrew.Findlay@brunel.ac.uk (Andrew Findlay) brought up:

    Looking through the Sendmail source (5.52 with IDA in my case) I can
    only see two cases where EX_OSFILE is referenced. One occurs if
    sendmail.cf cannot be opened, and the other if the smtp service
    cannot be found from services.byname.

Here's my 2 cents: We run a few VAXen with MtXinu 4.3BSD and one
annoying thing was "getservbyname()" that simply didn't make it,
sometimes...

We called MtXinu and there showed to be an error in "ndbm.c",
which made "ypserv" loose track of next entry in "services.byname"
(which is the only map that is scanned instead of being directly
accessed) *if* somebody else had called in the meantime (yes, a
real Heisenbug :-).

The error does not seem to exist in SunOS 3.* so you could possibly
test by using "/usr/etc/yp/ypset" to point to either Sun or MIPS as
server and then do several "ypcat services" in parallell and compare
the output.

	Gunnar Lindberg
	Dept of Comp Sc, Chalmers Univ of Tech