#!/bin/sh

# Deconfigure a network interface

# Copyright (C)2018-2024, Philip Munts dba Munts Technologies.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice,
#   this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.

if [ -z "$1" ]; then
  echo ""
  echo "Usage: netstop.script <interface>"
  echo ""
  exit 1
fi

# Source some configuration variables

. /etc/platform
. /etc/network.conf

# Kill processes bound to this interface

if [ -f /var/run/mdnsd.$1.pid ]; then
  kill -9 `cat /var/run/mdnsd.$1.pid`
  rm -f /var/run/mdnsd.$1.pid
fi

if [ -f /var/run/udhcpc.$1.mount ]; then
  force-umount `cat /var/run/udhcpc.$1.mount`
  rm -f /var/run/udhcpc.$1.mount
fi

if [ -f /var/run/udhcpc.$1.pid ]; then
  kill -9 `cat /var/run/udhcpc.$1.pid`
  rm -f /var/run/udhcpc.$1.*
fi

if [ -f /var/run/udhcpd.$1.pid ]; then
  kill -9 `cat /var/run/udhcpd.$1.pid`
  rm -f /var/run/udhcpd.$1.*
fi

# Bring the interface down

ifconfig $1 0.0.0.0 down

# Restart ntpd

if [ $((OPTIONS & 0x08)) -ne 0 ]; then
  killall -q ntpd
  ntpd
fi