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#!/bin/sh
#
# tor - The Onion Router
#
# Startup/shutdown script for Tor.
#
# Written by Marco Bonetti <sid77@slackware.it>, heavily based on
# contrib/tor.sh, contrib/torctl and Debian init script.
# Check available file descriptors
if [ -r /proc/sys/fs/file-max ]; then
SYSTEM_MAX=`cat /proc/sys/fs/file-max`
if [ "$SYSTEM_MAX" -gt "80000" ]; then
MAX_FILEDESCRIPTORS=32768
elif [ "$SYSTEM_MAX" -gt "40000" ]; then
MAX_FILEDESCRIPTORS=16384
elif [ "$SYSTEM_MAX" -gt "10000" ]; then
MAX_FILEDESCRIPTORS=8192
else
MAX_FILEDESCRIPTORS=1024
cat << EOF
Warning: Your system has very few filedescriptors available in total.
Maybe you should try raising that by adding 'fs.file-max=100000' to your
/etc/sysctl.conf file. Feel free to pick any number that you deem appropriate.
Then run 'sysctl -p'. See /proc/sys/fs/file-max for the current value, and
file-nr in the same directory for how many of those are used at the moment.
EOF
fi
else
MAX_FILEDESCRIPTORS=8192
fi
tor_start() {
mkdir -p /var/run/tor
chown tor.tor /var/run/tor
if [ -n "$MAX_FILEDESCRIPTORS" ]; then
echo -n "Raising maximum number of filedescriptors (ulimit -n) to $MAX_FILEDESCRIPTORS"
if ulimit -n "$MAX_FILEDESCRIPTORS" ; then
echo "..."
else
echo ": FAILED."
fi
fi
echo "Starting Tor..."
/usr/bin/tor
}
tor_stop() {
echo -n "Stopping Tor..."
PID=`cat /var/run/tor/tor.pid 2>/dev/null`
if [ -z "$PID" ]; then
echo " not running."
exit 0
fi
if kill -15 $PID; then
echo " stopped."
else
sleep 1
if kill -9 $PID; then
echo " killed."
else
echo " error!"
exit 1
fi
fi
}
tor_reload() {
echo -n "Reloading Tor..."
PID=`cat /var/run/tor/tor.pid 2>/dev/null`
if [ -z "$PID" ]; then
echo " not running."
exit 0
fi
if kill -1 $PID; then
echo " reloaded."
else
echo " error!"
exit 1
fi
}
tor_status() {
PID=`cat /var/run/tor/tor.pid 2>/dev/null`
if [ -z "$PID" ]; then
echo "Not running."
exit 1
elif kill -0 $PID; then
echo "Running."
exit 0
else
echo "PID file /var/run/tor/tor.pid present but PID $PID is not running."
exit 1
fi
}
case "$1" in
start)
tor_start
;;
stop)
tor_stop
;;
restart)
tor_stop
sleep 3
tor_start
;;
reload)
tor_reload
;;
status)
tor_status
;;
*)
echo "Usage: $0 (start|stop|restart|reload|status)"
esac
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