source: freewrt/package/fwifupdown/files/ifupdown.sh@ 655dec8

#!/bin/sh
#
# This file is part of the FreeWRT project. FreeWRT is copyrighted
# material, please see the LICENCE file in the top-level directory
# or at http://www.freewrt.org/licence for details.
#
# Christian Fischer <spaetzle@freewrt.org>
#

set -u

case $(basename $0) in
        ifup)
        ;;
        ifdown)
        ;;
        *)
        echo "Usage: ifup|ifdown [options]"
        echo "For options see man busybox"
        exit 1
        ;;
esac

CFG_BUSYBOX_COMPAT=0

if [ -f /etc/conf.d/ifupdown ]
then
        . /etc/conf.d/ifupdown
else
        CFG_BUSYBOX_COMPAT=1
fi


if [ "$CFG_BUSYBOX_COMPAT" = "1" ]
then
        busybox $(basename $0) $@
else
        # cleanup hook dirs, or should we patch busybox ???
        for dir in pre-up up down post-down
        do
                mount --bind /opt/ifupdown/hook /etc/network/if-${dir}.d
        done

        eval IFUPDOWN_ENV="" $(cat /etc/conf.d/ifupdown | sed "s/#.*//g" ) \
                busybox $(basename $0) $@ 2>&1 | sed '/^run-parts:/d'
        
        # restore hook dirs
        for dir in pre-up up down post-down
        do
                umount /etc/network/if-${dir}.d
        done
fi

# vim:ts=4