busybox/examples/udhcp/sample.renew

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#!/bin/sh
# Sample udhcpc bound script
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RESOLV_CONF="/etc/udhcpc/resolv.conf"
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[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast"
[ -n "$subnet" ] && NETMASK="netmask $subnet"
/sbin/ifconfig $interface $ip $BROADCAST $NETMASK
if [ -n "$router" ]
then
echo "deleting routers"
while /sbin/route del default gw 0.0.0.0 dev $interface
do :
done
metric=0
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for i in $router
do
/sbin/route add default gw $i dev $interface metric $((metric++))
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done
fi
echo -n > $RESOLV_CONF
[ -n "$domain" ] && echo domain $domain >> $RESOLV_CONF
for i in $dns
do
echo adding dns $i
echo nameserver $i >> $RESOLV_CONF
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done