minix/etc/usr/rc
2005-07-19 12:16:55 +00:00

129 lines
2.7 KiB
Text

# /usr/etc/rc - continued system initialization.
case "$#:$1" in
1:start|1:stop|1:down)
action=$1
;;
*) echo >&2 "Usage: $0 start|stop|down"
exit 1
esac
daemonize()
{
# Function to start a daemon, if it exists.
local IFS=':'
local name="$1"
test "$1" = tcpd && name="$2"
for dir in $PATH
do
if [ -f "$dir/$1" ]
then
echo -n " $name"
"$@" &
return
fi
done
}
RANDOM_FILE=/usr/adm/random.dat
case $action in
start)
# Select console font.
test -f /etc/font && loadfont /etc/font </dev/console
# Cleanup.
rm -rf /tmp/. /usr/run/. /usr/spool/lpd/. /usr/spool/locks/.
# load random number generator
if [ -f $RANDOM_FILE ]
then
cat < $RANDOM_FILE >/dev/random
# overwrite $RANDOM_FILE. We don't want to use this data again
dd if=/dev/random of=$RANDOM_FILE bs=1024 count=1
fi
# Start servers.
ifs="$IFS"; IFS=,
for server in `sysenv servers`; do daemonize $server; done
IFS="$ifs"; unset ifs
sleep 1
# Network initialization.
(: </dev/tcp) 2>/dev/null && net=t # Is there a TCP/IP server?
echo -n "Starting daemons:"
daemonize update
daemonize usyslogd
# Ugly error message when starting cron from CD.
# (and cron unnecessary then so..)
if [ ! -f /CD ]
then daemonize cron
fi
if [ "$net" ]
then
if [ -f /etc/rc.net ]
then
# Let a customized TCP/IP initialization script figure it out.
. /etc/rc.net
else
# Standard network daemons.
daemonize dhcpd
daemonize nonamed
daemonize talkd
daemonize tcpd shell in.rshd
daemonize tcpd login in.rlogind
daemonize tcpd telnet in.telnetd
daemonize tcpd ftp in.ftpd
fi
fi
# The last daemon has been started, so close the list:
echo .
if [ "$net" ]
then
# Get the nodename from the DNS and set it.
t='-t 10'
trap '' 2
while :;
do
intr $t hostaddr -h
case $? in
142)
echo "\
Unable to obtain an IP address after 10 seconds. Hit DEL to get a root
prompt to investigate, otherwise just wait until an address is received..."
t=
;;
130)
echo "Single user."
intr sh
echo "Continue waiting for an address..."
;;
*) break
esac
done
trap 2
fi
# Recover files being edited when the system crashed.
test -f /usr/bin/elvprsv && elvprsv /usr/tmp/elv*
# Run the daily cleanup on systems that are not on at night.
test -f /usr/etc/daily && sh /usr/etc/daily boot &
;;
stop|down)
# Save random data.
if dd if=/dev/random of=$RANDOM_FILE.new bs=1024 count=1 2>/dev/null
then
mv $RANDOM_FILE.new $RANDOM_FILE
else
echo 'Failed to save random data.'
fi
esac