virtualization/app-emulation/qemu/files/qemu-ifdown

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#!/bin/sh
if [ -x /sbin/brctl ]; then
BRCTL="/sbin/brctl"
elif [ -x /usr/sbin/brctl ]; then
BRCTL="/usr/sbin/brctl"
else
echo "no bridge utils installed"
exit 1
fi
if [ -x /sbin/ip ]; then
switch=( $(/sbin/ip route list | awk '/^default / { sub(/.* dev /, ""); print $1 }') )
${BRCTL} delif ${switch} $1
/sbin/ip link set $1 down
else
switch=( $(/bin/netstat -rn | awk '/^0\.0\.0\.0/ { print $NF }') )
${BRCTL} delif ${switch} $1
/sbin/ifconfig $1 down
fi