adsl-stop.in

PPPoE在Linux上的源代码

#!/bin/sh
# @configure_input@
#***********************************************************************
#
# adsl-stop
#
# Shell script to bring down an ADSL connection
#
# Copyright (C) 2000 Roaring Penguin Software Inc.
#
# $Id: adsl-stop.in,v 1.5 2002/04/09 17:28:39 dfs Exp $
#
# This file may be distributed under the terms of the GNU General
# Public License.
#
# LIC: GPL
#
# Usage: adsl-stop [config_file]
# If config_file is omitted, defaults to /etc/ppp/pppoe.conf
#
#***********************************************************************

# Set to "C" locale so we can parse messages from commands
LANG=C
export LANG

ME="`basename $0`"
LOGGER="/usr/bin/logger -t $ME"
CONFIG="$1"
if [ "$CONFIG" = "" ] ; then
    CONFIG=/etc/ppp/pppoe.conf
fi

if [ ! -f "$CONFIG" -o ! -r "$CONFIG" ] ; then
    echo "$ME: Cannot read configuration file '$CONFIG'" >& 2
    exit 1
fi

. $CONFIG

PPPOE_PIDFILE="$PIDFILE.pppoe"
PPPD_PIDFILE="$PIDFILE.pppd"
STARTPID="$PIDFILE.start"

# Backward config file compatibility
if test "$DEMAND" = "" ; then
	DEMAND=no
fi

# Ignore SIGTERM
trap "" 15

# Check for pidfile
if [ -r "$PIDFILE" ] ; then
    PID=`cat $PIDFILE`

    # Check if still running
    kill -0 $PID > /dev/null 2>&1
    if [ $? != 0 ] ; then
	echo "$ME: The adsl-connect script (PID $PID) appears to have died" >& 2
    fi

    # Kill pppd, which should in turn kill pppoe
    if [ -r "$PPPD_PIDFILE" ] ; then
	PPPD_PID=`cat "$PPPD_PIDFILE"`
	$LOGGER -p daemon.notice "Killing pppd"
	echo "Killing pppd ($PPPD_PID)"
	kill $PPPD_PID > /dev/null 2>&1 || exit 1
    fi

    # Kill adsl-start
    PIDS=`cat $STARTPID`
    kill -0 $PIDS > /dev/null 2>&1
    if [ $? = 0 ] ; then
	$LOGGER -p daemon.notice "Killing adsl-connect"
	kill $PIDS > /dev/null 2>&1
    fi

    # Kill adsl-connect
    $LOGGER -p daemon.notice "Killing adsl-connect"
    echo "Killing adsl-connect ($PID)"
    kill $PID > /dev/null 2>&1

    rm -f "$PIDFILE" "$PPPD_PIDFILE" "$PPPOE_PIDFILE" "$STARTPID"
else
    echo "$ME: No ADSL connection appears to be running" >&2
    exit 1
fi

exit 0