that if a shutdown-less reboot occurs, the next re-seed is not a repeat

use printf(1) here.  This way there is no possibility of format
string problems and we use a shell builtin instead of an external
command.

inspiration from dynamo@ime.net.
also a typo fix.

may be no /etc/mail/sendmail.cf so don't include that in the check
for whether or not to run /usr/sbin/sendmail.  Instead, check for
the existence of /etc/mailer.conf.  Pointed out by Theo.

-q flag to ls(1) so that non-printable characters will appear as '?'. This
prevents a malicious user from fooling the administrator into thinking the
contents of a file name are actually valid script output (note that you can
put newlines in file names); deraadt@ ok

need to add it.

xterm or equivalent

is used as that device. ttyEcfg needs to be created for wscons tools.
Additional cleanup and comments.

/dev/null too.  Otherwise, if there is a name resolution problem
the rc files may finish before sendmail forks into a daemon and it
will complain about EBADF on stderr (since init revoked it).
From a discussion between Theo and myself.

MAKEDEV entry and manpage.

setusercontext() in most places where previously we did a setlogin().
Add default login.conf file and put root in the "daemon" login class.

defined order, so we should return ::1 first.