ddclient/sample-etc_rc.d_init.d_ddclient
Richard Hansen e7c43e9eef Improve robustness of daemon interval extraction
Without this change the init script incorrectly handles config file
lines like these:

    foo=bar # daemon=123
    foodaemon=123
    daemonfoo=123
    daemon=0
    DAEMON=123
2020-05-28 14:53:37 -04:00

100 lines
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#!/bin/bash
#
# ddclient This shell script takes care of starting and stopping
# ddclient.
#
# chkconfig: 2345 65 35
# description: ddclient provides support for updating dynamic DNS services.
CONF=/etc/ddclient/ddclient.conf
program=ddclient
[ -f $CONF ] || exit 0
system=unknown
if [ -f /etc/fedora-release ]; then
system=fedora
elif [ -f /etc/redhat-release ]; then
system=redhat
elif [ -f /etc/debian_version ]; then
system=debian
fi
PID=''
if [ "$system" = "fedora" ] || [ "$system" = "redhat" ]; then
. /etc/init.d/functions
PID=`pidofproc $program`
else
PID=`ps -aef | grep "$program - sleep" | grep -v grep | awk '{print $2}'`
fi
PATH=/usr/sbin:/usr/local/sbin:${PATH}
export PATH
# See how we were called.
case "$1" in
start)
# See if daemon=value is specified in the config file.
# Assumptions:
# * there are no quoted "#" characters before "daemon="
# (if there is a "#" it starts a comment)
# * "daemon=" does not appear in a password or value
# * if the interval value is 0, it is not quoted
INTERVAL=$(sed -e '
s/^\([^#]*[,[:space:]]\)\{0,1\}daemon=\([^,[:space:]]*\).*$/\2/
t quit
d
:quit
q
' "$CONF")
if [ -z "$DELAY" ] || [ "$DELAY" = "0" ]; then
DELAY="-daemon 300"
else
# use the interval specified in the config file
DELAY=''
fi
echo -n "Starting ddclient: "
if [ "$system" = "fedora" ] || [ "$system" = "redhat" ]; then
daemon $program $DELAY
else
ddclient $DELAY
fi
echo
;;
stop)
# Stop daemon.
echo -n "Shutting down ddclient: "
if [ -n "$PID" ]; then
if [ "$system" = "fedora" ] || [ "$system" = "redhat" ]; then
killproc $program
else
kill $PID
fi
else
echo "ddclient is not running"
fi
echo
;;
restart)
$0 stop
$0 start
;;
status)
if [ "$system" = "fedora" ] || [ "$system" = "redhat" ]; then
status $program
else
if test "$PID"; then
for p in $PID; do
echo "$program (pid $p) is running"
done
else
echo "$program is stopped"
fi
fi
;;
*)
echo "Usage: ddclient {start|stop|restart|status}"
exit 1
esac
exit 0