#! /bin/sh
### BEGIN INIT INFO
# Provides:          syslog-ng
# Required-Start:    $local_fs $network $time $remote_fs
# Required-Stop:     $local_fs $network $time $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Starting system logging daemon
# Description:       Starting syslog-NG, the next generation
#  syslog daemon.
### END INIT INFO#

set -e

SYSLOGNG_OPTS=""

#we source /etc/default/syslog-ng if exists
[ -r /etc/default/syslog-ng ] && . /etc/default/syslog-ng

# stop syslog-ng before changing its PID file!
PIDFILE="/var/run/syslog-ng.pid"

SYSLOGNG="/usr/sbin/syslog-ng"
NAME="syslog-ng"

PATH=/sbin:/bin:/usr/sbin:/usr/bin
test -f $SYSLOGNG || exit 0

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions

case "x$CONSOLE_LOG_LEVEL" in
  x[1-8])
    dmesg -n $CONSOLE_LOG_LEVEL
    ;;
  x)
    ;;
  *)
    log_warning_msg "CONSOLE_LOG_LEVEL is of unaccepted value."
    ;;
esac

create_xconsole() {
    XCONSOLE=/dev/xconsole
    if [ "$(uname -s)" = "GNU/kFreeBSD" ]; then
        XCONSOLE=/var/run/xconsole
        ln -sf $XCONSOLE /dev/xconsole
    fi
    if [ ! -e $XCONSOLE ]; then
        mknod -m 640 $XCONSOLE p
        chown root:adm $XCONSOLE
        [ -x /sbin/restorecon ] && /sbin/restorecon $XCONSOLE
    fi
}

create_pidfiledir() {
    if [ ! -d /var/run/syslog-ng ]
    then
        mkdir -p /var/run/syslog-ng
    fi
}

syslogng_wait() {
    if [ "$2" -ne 0 ]; then
        return 1
    fi

    if [ -n "$DPKG_MAINTSCRIPT_PACKAGE" ]; then
        return 0
    fi

    RET=1
    for i in $(seq 1 30); do
        status=0
        syslog-ng-ctl stats >/dev/null 2>&1 || status=$?
        if [ "$status" != "$1" ]; then
            RET=0
            break
        fi
        sleep 1s
    done
    return $RET
}

syslogng_start() {
    log_daemon_msg "Starting system logging" "$NAME"
    create_pidfiledir
    create_xconsole
    start-stop-daemon --start --oknodo --quiet --exec "$SYSLOGNG" \
                      --pidfile "$PIDFILE" -- -p "$PIDFILE" $SYSLOGNG_OPTS
    syslogng_wait 1 $?
    RET="$?"
    log_end_msg $RET
    return $RET
}

syslogng_stop() {
    log_daemon_msg "Stopping system logging" "$NAME"
    start-stop-daemon --stop --oknodo --quiet --name "$NAME" --retry 3 \
                      --pidfile "$PIDFILE"
    syslogng_wait 0 $?
    RET="$?"
    log_end_msg $RET
    return $RET
}

syslogng_reload() {
    log_daemon_msg "Reload system logging" "$NAME"
    if $SYSLOGNG -s $SYSLOGNG_OPTS
    then
      start-stop-daemon --stop --signal 1 --quiet --exec "$SYSLOGNG" \
                        --pidfile "$PIDFILE"
      syslogng_wait 1 $?
      RET="$?"
      log_end_msg $RET
      return $RET
    else
      log_end_msg 1
      return 1
    fi
}


case "$1" in
  start)
    syslogng_start || exit 1
    ;;
  stop)
    syslogng_stop || exit 1
    ;;
  reload|force-reload)
    syslogng_reload || exit 1
    ;;
  restart)
    syslogng_stop
    syslogng_start || exit 1
    ;;
  try-restart)
    set +e
    killproc -p "$PIDFILE" "$SYSLOGNG" 0
    ISRUNNING=$?
    set -e
    if [ $ISRUNNING -eq 0 ]
    then
      # The syslog is currently running, so we restart it
      syslogng_stop
      syslogng_start || exit 1
    fi
    ;;
  status)
    status_of_proc "$SYSLOGNG" "$NAME" && exit 0 || exit $?
    ;;
  *)
    echo "Usage: /etc/init.d/$NAME {start|stop|restart|reload|force-reload|status}" >&2
    exit 1
    ;;
esac

exit 0