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Current File : //etc/init.d/nfdump

#!/bin/sh

### BEGIN INIT INFO
# Provides:          netflow capture daemon
# Required-Start:    $network $remote_fs $syslog
# Required-Stop:     $network $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Flow-based network traffic analyser
# Description:       Manage all nfcapd instanaces defined in
#                    /etc/nfdump/*.conf
### END INIT INFO

PATH=/sbin:/usr/sbin:/bin:/usr/bin
NAME=nfcapd
DESC='Netflow capture daemon'
NFCAPD='/usr/bin/nfcapd'
PIDDIR="/var/run/$NAME/"

[ -x "$NFCAPD" ] || exit 0

mkdir -p "$PIDDIR"

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB functions
. /lib/lsb/init-functions

# Start a nfcapd instance
#
# Return
#   0 if daemon has been started
#   1 if daemon was already running
#   2 if daemon could not be started
do_start () {
    local INSTANCE="$1"
    local CONFIG="$2"

    sh -n "$CONFIG" 2>/dev/null || return 2

    cache_dir=
    user=
    group=
    options=

    . "$CONFIG"

    [ "$options" ] || return 2

    if [ "$cache_dir" ] ; then
        mkdir -p "$cache_dir"
        if [ "$user" ] && [ "$group" ] ; then
            chown "$user:$group" "$cache_dir"
        elif [ "$user" ] ; then
            chown "$user" "$cache_dir"
        fi
    fi

    local PIDFILE="$PIDDIR$INSTANCE.pid"
    start-stop-daemon --start --quiet \
        --pidfile "$PIDFILE" --exec "$NFCAPD" --test > /dev/null \
        || return 1
    start-stop-daemon --start --quiet \
        --pidfile "$PIDFILE" \
        --exec "$NFCAPD" -- \
        -D -P "$PIDFILE" \
        $options \
        || return 2
    sleep 1
    start-stop-daemon --start --quiet \
        --pidfile "$PIDFILE" --exec "$NFCAPD" --test > /dev/null \
        && return 2
}

# Stop a nfcapd instance
#
# Return
#   0 if daemon has been stopped
#   1 if daemon was already stopped
#   2 if daemon could not be stopped
#   other if a failure occurred
do_stop () {
    local INSTANCE="$1"

    local PIDFILE="$PIDDIR/$INSTANCE.pid"
    start-stop-daemon --stop --quiet \
        --retry=TERM/30/KILL/5 --pidfile "$PIDFILE" --name "$NAME"
    RETVAL="$?"
    [ "$RETVAL" = 2 ] && return 2
    # Many daemons don't delete their pidfiles when they exit.
    rm -f "$PIDFILE"
    return "$RETVAL"
}

EXIT=0

do_action () {
    local CONFIG="$1"

    INSTANCE="$(basename "${CONFIG%%.conf}")"

    case "$ACTION" in
        start)
            [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$INSTANCE"
            do_start "$INSTANCE" "$CONFIG"
            case "$?" in
                0|1)    [ "$VERBOSE" != no ] && log_end_msg 0 ;;
                2)
                    [ "$VERBOSE" != no ] && log_end_msg 1
                    EXIT=1
                    ;;
            esac
            ;;
        stop)
            [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$INSTANCE"
            do_stop "$INSTANCE"
            case "$?" in
                0|1)    [ "$VERBOSE" != no ] && log_end_msg 0 ;;
                2)
                    [ "$VERBOSE" != no ] && log_end_msg 1
                    EXIT=1
                    ;;
            esac
            ;;
        status)
            status_of_proc -p "$PIDDIR/$INSTANCE.pid" "$NFCAPD" "nfcapd $INSTANCE instance" || EXIT=$?
            ;;
        restart|force-reload)
            log_daemon_msg "Restarting $DESC" "$INSTANCE"
            do_stop "$INSTANCE"
            case "$?" in
                0|1)
                    do_start "$INSTANCE" "$CONFIG"
                    case "$?" in
                        0)  log_end_msg 0 ;;
                        *)
                            # Old process is still running or
                            # failed to start
                            log_end_msg 1 ;;
                    esac
                    ;;
                *)
                    # Failed to stop
                    log_end_msg 1
                    ;;
                esac
            ;;
        *)
            echo "Usage: /etc/init.d/nfdump {start|stop|status|restart|force-reload} [<instance> ...]" >&2
            exit 3
            ;;
    esac
}


ACTION="$1"
shift

if [ "$1" ] ; then
    while [ "$1" ] ; do
        CONFIG="/etc/nfdump/$1.conf"
        if [ -f "$CONFIG" ] ; then
            do_action "$CONFIG"
        fi
        shift
    done
else
    for CONFIG in /etc/nfdump/*.conf ; do
        if [ -f "$CONFIG" ] ; then
            do_action "$CONFIG"
        fi
    done
fi

exit $EXIT

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