FM / udhcp

/usr/share/doc/busybox-static/examples/udhcp/

/usr/share/doc/busybox-static/examples/udhcp

Name	Size	Mode	Actions
sample.bound	1079	0755	edit dl rm
sample.deconfig	77	0755	edit dl rm
sample.nak	68	0755	edit dl rm
sample.renew	1079	0755	edit dl rm
sample.script	271	0755	edit dl rm
simple.script	1889	0755	edit dl rm
udhcpd.conf.gz	1822	0644	edit dl rm

Edit: /usr/share/doc/busybox-static/examples/udhcp/sample.renew (1079B)

#!/bin/sh
# Sample udhcpc renew script

RESOLV_CONF="/etc/udhcpc/resolv.conf"

[ -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
	for i in $router
	do
		if [ "$subnet" = "255.255.255.255" ]; then
			# special case for /32 subnets:
			# /32 instructs kernel to always use routing for all outgoing packets
			# (they can never be sent to local subnet - there is no local subnet for /32).
			# Used in datacenters, avoids the need for private ip-addresses between two hops.
			/sbin/ip route add $i dev $interface
		fi
		/sbin/route add default gw $i dev $interface metric $((metric++))
	done
fi

# Only replace resolv.conf if we have at least one DNS server
if [ -n "$dns" ]
then
	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
	done
fi

cmd: