| bombshell |
02-23-2011 01:53 PM |
Getting a INIT script to work as expected
This is my first init script, so far, it atleast starts the daemon but it fails at creating a pid, so later on I can use to, to either stop it or reload it. Here's the current code:
Further more, the script returns ok that it started the pid, when in fact, the pid fails in the background, this script needs MUCH improvement, some help would be nice to fix this script. :/
Code:
#! /bin/sh
### BEGIN INIT INFO
# Provides: znc
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: znc initscript
# Description: This is the init-Script for znc.
### END INIT INFO
# Author: Bombshell
#
# Please remove the "Author" lines above and replace them
# with your own name if you copy and modify this script.
# Do NOT "set -e"
# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions
# Read configuration variable file if it is present
if [ -r /etc/sysconfig/znc ]; then
. /etc/sysconfig/znc
else
log_failure_msg 'Error: Missing ZNC sysconfig: Unable to start'
exit 3
fi
# Exit if the package is not installed
if [ ! -x "$DAEMON" ]; then
log_failure_msg 'Error: Missing ZNC binary: Unable to start'
exit 3
fi
#
# Function that starts the daemon/service
#
do_start()
{
# Start ZNC
su - znc -c "$DAEMON $DAEMON_ARGS"
#start_daemon -u $ZNC_USER -p $ZNC_PID_FILE "$DAEMON $DAEMON_ARGS"
PID=$!
echo $PID
if [ -n "$PID" ]; then
if kill -0 $PID
then
echo $PID > $ZNC_PID_FILE
fi
fi
RETVAL=$?
}
#
# Function that stops the daemon/service
#
do_stop()
{
# Kill znc
killproc -p $ZNC_PID_FILE "$DAEMON $DAEMON_ARGS"
RETVAL=$?
#rm -f $ZNC_PID_FILE
}
#
# Function that sends a SIGHUP to the daemon/service
#
do_reload() {
#
# If the daemon can reload its configuration without
# restarting (for example, when it is sent a SIGHUP),
# then implement that here.
#
killproc -p $ZNC_PID_FILE "$DAEMON $DAEMON_ARGS" -signal 1
RETVAL=$?
}
case "$1" in
start)
echo -n $"Starting $NAME....."
do_start
if [ $? -eq 0 ]; then
echo -e "OK\n";
else
echo -e "Failed\n";
fi
;;
stop)
echo -n $"Stoping $NAME....."
do_stop
if [ $? -eq 0 ]; then
echo -e "OK\n";
else
echo -e "Failed\n";
fi
;;
reload)
echo -n $"Reloading $NAME....."
do_reload
if [ $? -eq 0 ]; then
echo -e "OK\n";
else
echo -e "Failed\n";
fi
;;
#reload|force-reload)
#
# If do_reload() is not implemented then leave this commented out
# and leave 'force-reload' as an alias for 'restart'.
#
#log_daemon_msg "Reloading $DESC" "$NAME"
#do_reload
#log_end_msg $?
#;;
restart|force-reload)
#
# If the "reload" option is implemented then remove the
# 'force-reload' alias
#
echo -n $"Restarting $NAME: "
echo -n "Stoping....."
do_stop
if [ $? -eq 0 ]; then
echo -e "OK\n";
else
echo -e "Failed\n";
fi
echo -n "Starting....."
do_start
if [ $? -eq 0 ]; then
echo -e "OK\n";
else
echo -e "Failed\n";
fi
;;
*)
#echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
exit 3
;;
esac
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