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#!/bin/sh | |
# Busybox udhcpc dispatcher script. Copyright (C) 2009 by Axel Beckert. | |
# | |
# Based on the busybox example scripts and the old udhcp source | |
# package default.* scripts. | |
RESOLV_CONF="/etc/resolv.conf" | |
case $1 in | |
bound|renew) | |
[ -n "$broadcast" ] && BROADCAST="broadcast $broadcast" | |
[ -n "$subnet" ] && NETMASK="netmask $subnet" | |
/sbin/ifconfig $interface $ip $BROADCAST $NETMASK | |
if [ -n "$router" ]; then | |
echo "$0: Resetting default routes" | |
while /sbin/route del default gw 0.0.0.0 dev $interface; do :; done | |
metric=0 | |
for i in $router; do | |
if [ "$subnet" = "255.255.255.255" ]; then | |
/sbin/ip route add default via $i dev $interface metric $metric onlink | |
else | |
/sbin/ip route add default via $i dev $interface metric $metric | |
fi | |
metric=$(($metric + 1)) | |
done | |
fi | |
# Update resolver configuration file | |
R="" | |
[ -n "$domain" ] && R="domain $domain | |
" | |
for i in $dns; do | |
echo "$0: Adding DNS $i" | |
R="${R}nameserver $i | |
" | |
done | |
if [ -x /sbin/resolvconf ]; then | |
echo -n "$R" | resolvconf -a "${interface}.udhcpc" | |
else | |
echo -n "$R" > "$RESOLV_CONF" | |
fi | |
;; | |
deconfig) | |
if [ -x /sbin/resolvconf ]; then | |
resolvconf -d "${interface}.udhcpc" | |
fi | |
/sbin/ifconfig $interface 0.0.0.0 | |
;; | |
leasefail) | |
echo "$0: Lease failed: $message" | |
;; | |
nak) | |
echo "$0: Received a NAK: $message" | |
;; | |
*) | |
echo "$0: Unknown udhcpc command: $1"; | |
exit 1; | |
;; | |
esac |
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