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#!/bin/sh
[ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
RESOLV_CONF="/tmp/resolv.conf"
hotplug_event() {
nvram show 2>&- | grep _proto=dhcp | {
while :; do
read FOO
[ -z "$FOO" ] && break
FOO="${FOO%%_*}"
[ "$(nvram get ${FOO}_ifname)" = "${interface}" ] || continue
env -i ACTION="$1" INTERFACE="${FOO}" PROTO=dhcp /sbin/hotplug iface
done
}
}
case "$1" in
deconfig)
ifconfig $interface 0.0.0.0
hotplug_event ifdown
;;
renew|bound)
ifconfig $interface $ip \
netmask ${subnet:-255.255.255.0} \
broadcast ${broadcast:-+}
if [ -n "$router" ] ; then
if [ "$router" != "$(route -n | grep '^0.0.0.0' | grep $interface | awk '{ print $2 }')" ] ; then
echo "deleting routers"
while route del default gw 0.0.0.0 dev $interface ; do :; done
for i in $router ; do
route add default gw $i dev $interface
done
fi
fi
echo -n > $RESOLV_CONF
${domain:+echo search $domain} >> $RESOLV_CONF
for i in $dns ; do
echo adding dns $i
echo nameserver $i >> $RESOLV_CONF
done
hotplug_event ifup
# user rules
[ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
;;
esac
exit 0
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