Hi!

For compatibility reasons, still getservbyname{,_r} needs to read whole
servyces.byname map for requests for non-existent protocols.
This patch allows the admin to say in /etc/default/nss that
services.byservicename exists and is authoritative and thus avoid fetching
the whole map ever by getservbyname*.
Attached are also incremental patch to ypserv (on top of the one from 
yesterday) and a full ypserv patch.
Apparently at least Solaris 9 is building the services.byservicename map
properly (i.e. say for
qotd            17/tcp          quote
qotd            17/udp          quote
there will be qotd/tcp, qotd, quote/tcp, quote, qotd/udp and quote/udp
keys) while the Makefile I googled up would not add in the case above
"quote".

	Jakub