# Shell functions for the scripts in /etc/init.d
# If $DAEMON is defined before including this file, some additional preparations is performed
# other environment variables:
# DAEMON_LONG_NAME service name to display in start/stop message, default $DAEMON
# PID_FILE pid-file for DAEMON, default /var/run/$DAEMON.pid
export PATH=/sbin:/bin:/usr/sbin:/usr/bin:/mod/sbin:/mod/bin:/mod/usr/sbin:/mod/usr/bin
export LD_LIBRARY_PATH=/mod/lib:/mod/usr/lib
# modlib_addgroup:
# check for group name, create group if not found.
# No check is done for a change in the optional arguments!
# $1: group name
# $2-n: optional arguments for addgroup
modlib_addgroup()
{
local group="$1"
shift
echo -n "Looking for group '$group' ... "
if grep -q "^$group:" /etc/group; then
echo "found"
elif addgroup "$@" $group; then
echo -n "created - now saving to data buffer ... "
modusers save && echo "done" || echo "failed"
else
echo "not created - error occurred"
fi
}
# modlib_adduser:
# check for user name, create user if not found.
# No check is done for a change in the optional arguments!
# $1: user name
# $2-n: optional arguments for adduser
modlib_adduser()
{
local user="$1"
shift
echo -n "Looking for user '$user' ... "
if grep -q "^$user:" /etc/passwd; then
echo "found"
return 0
fi
local msg=$(adduser "$@" $user 2>&1)
if [ "$?" = 0 ]; then
echo -n "created - now saving to data buffer ... "
modusers save && echo "done" || echo "failed"
else
echo "not created - error occurred: $msg"
exit 1
fi
}
# modlib_check_running
# check whether daemon is running. return status
modlib_check_running()
{
local fn=${PID_FILE-/var/run/$DAEMON.pid}
[ ! -s "$fn" ] && return 1
kill -0 $(cat "$fn") 2> /dev/null
local status="$?"
[ "$status" != "0" ] && rm -f "$fn"
return "$status"
}
# modlib_stop
# stop daemon
modlib_stop()
{
local fn=${PID_FILE-/var/run/$DAEMON.pid}
echo -n "Stopping ${DAEMON_LONG_NAME-$DAEMON}..."
if ! modlib_check_running; then
echo 'not running.'
return 0
fi
kill $(cat "$fn") 2> /dev/null
local status=$?
rm -f "$fn"
if [ "$status" -eq 0 ]; then
echo 'done.'
return 0
else
echo 'failed.'
return 1
fi
}
# modlib_reload
# reload daemon (send signal SIGHUP)
modlib_reload()
{
local fn=${PID_FILE-/var/run/$DAEMON.pid}
echo -n "Reloading ${DAEMON_LONG_NAME-$DAEMON}..."
if ! modlib_check_running; then
echo 'not running.'
return 0
fi
kill -HUP $(cat "$fn") 2> /dev/null
local status=$?
if [ "$status" -eq 0 ]; then
echo 'done.'
return 0
else
rm -f "$fn"
echo 'failed.'
return 1
fi
}
# modlib_restart
# restart daemon
# function "start" must be defined in the calling script
modlib_restart()
{
modlib_stop
sleep 1
start
}
# modlib_status
# check whether daemon is running
modlib_status()
{
if modlib_check_running; then
echo 'running'
return 0
else
echo 'stopped'
return 3
fi
}
# load config
[ -n "$DAEMON" ] && case "$1" in
""|config|load|reload|restart|start|status)
if [ ! -r "/mod/etc/conf/$DAEMON.cfg" ]; then
echo "Error[$DAEMON]: not configured" 1>&2
exit 1
fi
. /mod/etc/conf/$DAEMON.cfg
;;
esac
