[dns-operations] dnscap update

[Paul Vixie]

i just committed bortzmeyer at nic.fr's fix for linux (use NS_GET32 and NS_PUT32
macros since i fear to depend on the bind8 library's presence), and i also
fixed the alignment problem marka described (use a HEADER rather than HEADER*
to hold the 10 bytes or so of DNS header i'm using).  to retrieve it, do this:

cvs -d :pserver:anonymous at cvs.oarci.net:/proj/cvsroot login
    (use empty password)
cvs -d :pserver:anonymous at cvs.oarci.net:/proj/cvsroot get dnscap

note that this still lacks the #include changes bortzmeyer at nic.fr recommended
for netbsd, since i'd like them with #ifdef'd and i don't know which ones are
needed on that system (i can't test it here.)

also note that i'm still waiting for feedback on my CLI question/proposal.