[net-dns-users] SVCB

[Doug Barton]

I have two questions about the SVCB/HTTPS implementation.

First, how does one decode the "presentation format" data that's 
returned by the svcparam methods? I tried every combination of unpack 
that I could think of, including those used for pack and unpack in the 
pm file, and all I get is gibberish. None of the standard RR methods 
work either, including print, string, etc.; and I'm pretty sure I tried 
them all.

Second, what's the rationale for this substitution on line 190 of the 
current version of SVCB.pm:

         return ( $target eq '.' ) ? $self->owner : $target;

I could sort of understand how in some ways it would make it easier to 
read the output, but it's not what's in the zone file, or on the wire, 
and if I'm trying to compare the output of my script to either of those 
it could cause confusion. I think it would be extra confusing if the 
label in question were a wildcard.

I do note that this substitution doesn't happen in AliasMode, which is 
appreciated, since the '.' has a special meaning in that mode.

Any help on the parameter values would be most especially appreciated.

:)

Doug