[PATCH] dnsd segfault fixes + support for wildcard

[Natanael Copa]

Hi,

Attatched is a patch from Timo Teräs that fixes various segfaults in
dnsd. (one was a lib api change that was not updated and another is a
stack buffer overflow)

It also adds support for '*' in dnsd.conf. It resolves all hostnames to
a specific ip address. This is useful if you for example want redirect
all http traffic to your first-boot-web-wizard on you router/firewall.

I believe the patch is against 1.10.2 but i think it should apply clean
against current svn as well. (and yes i have tested it)

Please rember to credit Timo Teräs for this one.

-nc
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