tell people where to look; idea from miod

- Handle errors from syscalls better
- Prevent curtime.tv_usec from being negative for negative offsets.
- Don't claim to have done settimeofday if it fails.
ok henning@

guaranteed that its res_init() call was done once before fork etc...
that is no longer the case. call res_init() in main() early.

there are some bytes left (less than an imsg header, or less than the
imsg header len field says) we copy it to the very beginning of the buffer.
use memmove instead of memcpy since it is not guaranteed that there's no
overlap. while memcpy on OpenBSD is safe, it might not elsewhere, and
we want our code to be correct anyways.
funny enough theo and I talked at length about that last week in dublin,
and I said I believe I had no memcpys with the chance of overlap in ntpd/bgpd -
well, here is one, and Alexander von Gernler <grunk@pestilenz.org> pointed
me to it.

systems since it still has all the filesystems for vnd usage and thus
does not save much memory...
ok deraadt@

do so when
-we tried to send at least one query (that is the change)
-we could not send ou a single one without failure (this was already in
place but catched too much)
problem independently noticed by nick and danh, ok mickey danh, testing by
many

don't whine about temporary dns errors

move log_debug call to tell about skipping the settime due to lack of
answers down slightly below the 2nd (and final) log_init call so it becomes
a -d only thing. tested by dlg and me

apmd(8); missing sysctl variable noticed by drahn@

using it.  Make uu_lock_txfr work by properly checking return value from
put_pid().  Fix an FD leak on the lockfile in an error path (from FreeBSD
with modifications).  OK millert@, input from otto@ and Bruno Rohee.

to the appropriate sections. No functional change, except for the manpage
being nicer.

(like the Mac mini) have that many usb devs on board.
ok drahn@ dlg@ miod@

termination with '\0') vs. null termination.
Input from krw@, jaredy@, jmc@.  OK deraadt@

a reply to that query.
if we get errors for all queries and the initial settime() is still due
and thus the parent process still waits (not yet daemonized!), send an
IMSG_SETTIME with offset 0.
shortens the delay dramatically when you boot without network
idea from a discussion with theo

ok henning@

setting a flag.  That way when we are called again we can be sure
to realloc() the right thing, regardless of the current value of
environ.  When the stashed value != environ (or when we are called
for the first time), copy the existing entries from environ and set
environ to the new value.  OK deraadt@, beck@, djm@

default .cshrc for root. This also eliminates the need to clear out
the dead directories and add new ones. Suggested by miod@.
ok miod@ millert@

add a few missing files and sort

ok henning@

"carp0 link up" => carp0.link.up
"and"           => &&
"or"            => ||
* Allow one line actions after if statements without braces.
* Remove unecessary parentheses in the example config.
ok mcbride@