This fixes bugs in MB and CNAME.copy() (using sprintName for copying),
IPSECKEY (missed copyIP) and OPT (partially, Options was not copied as
slice; EDNS0 objects themselves are still pointers).
This process probably fixes a bug in NSAPPTR.len(), after a similar one was
found in HINFO.len().
This should also make it easier to make changes to these functions, and
check their correctness.
Generate the code by running "go generate".
IPSECKEY is kinda strange because it has a type selector which tells
what type a later rdata field has. The type can be a domainname, address
or v6 address. You sort of wish Go would have a union type for this, but
alas.
Currently this is implemented as:
GatewayA net.IP `dns:"a"`
GatewayAAAA net.IP `dns:"aaaa"`
GatewayName string `dns:"domain-name"`
In the IPSECKEY. Only one of these is active at any one time. When
parsing/packing and unpacking the value of GatewayType is checked
to see what to do.
Parsing from strings is also implemented properly and tested. The Unpack
function still needs work.
Formatters are not needs you can access the members just fine.
However the rdata Field access function are handy and non-trivial,
extend them and add a basic test.
Added tests for the cmToM function to make sure that it's output is
correct. Modified the way the Altitude is written to a string. Previously,
if the altitude was an exact number of meters it would always be reported
with two decimal places. This is not needed. Conversely if it was not
an exact number of meters the cm were removed.
Some records are copies from others: DNSKEY, CDNSKEY and KEY are
identical. DS, CDS and DLV are too and even RRSIG and SIG.
The parsing functions and the definition can all be used for parsing
all these identical types.
When printing unknown records it is best to print the entire thing
as unknown, instead of relying on the internal defined type. An
example A record, printed as an unknown one:
miek.nl. 3600 CLASS1 TYPE1 \# 4 0a000101
This is based on @miekg's sig0 branch. That branch diverged from master
and I didn't want to wander off on a rebase.
As implemented there's no allowance for multi-envelope (TCP) support.
TODO:
* unpackUint32() could be moved out and used elsewhere
* tests
* multi-envelope support (if useful)