[CFR] reflect resolv.conf update to running application

[Matthew N. Dodd]

On Sat, 20 Aug 2005, Hajimu UMEMOTO wrote:
> Our resolver reads resolv.conf once, and never re-read it.  Recent 
> OpenBSD changed to re-read resolv.conf when it is updated.  I believe it 
> is useful specially for mobile environment.

The more useful solution is to run a local caching nameserver that 
forwards to the DHCP or location specific nameservers.

I've got modifications to dhclient-script and a Makefile in /etc/namedb/ 
that implement this behavior.  I'll clean it up for public consumption if 
others are interested.

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