ref: 566c5121064c4872fd9b21bfa37b1f997d779f18
dir: /rc/bin/fshalt/
#!/bin/rc
# fshalt [-r] - sync (flush) and, if possible, halt all file servers
# and optionally reboot
rfork en
reboot=no
scram=no
switch ($#*) {
case 0
case 1
reboot=yes
case *
echo usage: $0 '[-r]' >[1=2]
exit usage
}
path=(/bin)
builtin cd /
bind -c '#s' /srv
bind '#p' /proc
unmount /mnt/consoles >[2]/dev/null
kill consolefs | rc # don't compete with /mnt/consoles
sleep 1
c=`{ls /srv/cwfs*cmd >[2]/dev/null}
h=`{ls /srv/hjfs*cmd >[2]/dev/null}
# for scram, don't scram other systems
bind -b '#P' /dev
if(! ~ $reboot yes){
if (test -e '#P'/apm)
scram=yes
if (test -e '#P'/acpitbls -a -e '#P'/iow)
scram=yes
}
# halting (binaries we run can't be on the fs we're halting)
ramfs
builtin cd /tmp
cp /bin/echo /tmp
mkdir /tmp/lib
cp /rc/lib/rcmain /tmp/lib
cp /bin/ns /tmp
cp /bin/rc /tmp
cp /bin/sed /tmp
cp /bin/sleep /tmp
cp /bin/scram /tmp
cp /bin/test /tmp
bind /tmp /rc
bind /tmp /bin
# put this in a shell function so this rc script doesn't get read
# when it's no longer accessible
fn x {
echo
echo -n halting...
for (i in $c $h)
echo halt >>$i
for (i in $c $h){
echo -n $i...
while(test -e $i)
sleep 1
}
echo
echo done halting
if (~ $reboot yes) {
echo rebooting...
echo reboot >'#c/reboot'
}
if (~ $scram yes){
scram
echo 'It''s now safe to turn off your computer'
}
}
x