- do not process mygate for v4 if dhcp
- do not process mygate for v6 if rtsol
this also makes the mygate processing logic more readable
ok krw@

here they'll come back.  deraadt@ ok.

ok deraadt@ mickey@ krw@
same functionality tested/ok'ed by by mickey, brad, matthieu, and me
with this one may now put a v6 IP in /etc/mygate on a separate line from
the v4 default gateway and netstart will do the right thing

ok reyk@

ok krw@

that get copied around a lot. Needs sh(1) max array index bump I
committed earlier. ok todd@ deraadt@

well, so no need to do that on our own in dodisk().  ok todd@ deraadt@

populate ifmstart lines accordingly.
prodded/tested by brad@
ok reyk@

Nice speedup of MAKEDEV on slower archs. ok fries@ deraadt@

ok deraadt@ brad@

known DoS attacks, like de-auth flooding against wireless networks.
an example is provided in the manual page.
"or could you just got for it?", deraadt@

"inspired" by deraadt@

fix inspired by and closes pr 4495
ok krw@

can be changed via sysctl's.
ok markus@

client; from amh@POBOX.COM

show how to disable it;
ok deraadt@

spews1 the default.  OK deraadt@

From: Matthias Kilian <kili@outback.escape.de>

with a set skip statement to the same effect, performs way better
suggested by Stuart Henderson <stu@spacehopper.org>, theo ok

from netbsd pr #30872 (anonymous post);
ok deraadt@ krw@

graceful shutdown work correctly.
ok mpf@ deraadt@ a long time ago, committed to local repository by accident.

ok deraadt@

ok deraadt@