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#!/bin/sh
#
# Script fragment to make ifupdown supply DNS information to resolved
#
case "$ADDRFAM" in
inet|inet6) : ;;
*) exit 0 ;;
esac
if systemctl is-enabled systemd-resolved > /dev/null 2>&1; then
interface=$IFACE
if [ ! "$interface" ]; then
return
fi
ifindex=$(cat "/sys/class/net/$interface/ifindex")
if [ ! "$ifindex" ]; then
return
fi
mystatedir=/run/network
statedir=/run/systemd/resolve/netif
rm -f "$mystatedir/isc-dhcp-v4-$interface" "$mystatedir/isc-dhcp-v6-$interface" "$mystatedir/ifupdown-inet-$interface" "$mystatedir/ifupdown-inet6-$interface" "$statedir/$ifindex"
if systemctl --quiet is-active systemd-resolved; then
resolvectl revert "$ifindex" || true
fi
fi
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