the PTR if the update of the A failed.
- Don't do the delete with the 'interim/rfc' code if we didn't do the
add with the 'interim/rfc' code.
- Don't delete the dhcid RR if there is still a valid A RR, and don't
just delete all A RRs when installing a new one - the client may
legitimately have IP addresses on more than one subnet.
<draft-ietf-dhc-dhcp-dns-12.txt>.
common/options.c, common/tables.c, includes/dhcp.h:
Split the fqdn.name option into fqdn.hostname and fqdn.domainname.
includes/dhcpd.h, server/Makefile.dist, server/ddns.c, server/dhcp.c,
server/mdb.c, server/stables.c:
Added a new file (server/ddns.c) containing the DDNS updates code.
This file exports two functions: ddns_updates() and ddns_removals().
ddns_updates() is called when a lease is granted, and ddns_removals()
is called when the lease expires or is released.
server/dhcpd.c:
Remove the previous DDNS update code, and add default code for the
ddns-hostname, ddns-domainname, ddns-ttl, and ddns-rev-domainname
server options.
