busybox/examples/zcip.script

#!/bin/sh

# only for use as a "zcip" callback script
if [ "x$interface" = x ]
then
	exit 1
fi

# zcip should start on boot/resume and various media changes
case "$1" in
init)
	# for now, zcip requires the link to be already up,
	# and it drops links when they go down.  that isn't
	# the most robust model...
	exit 0
	;;
config)
	if [ "x$ip" = x ]
	then
		exit 1
	fi
	# remember $ip for $interface, to use on restart
	if [ "x$IP" != x -a -w "$IP.$interface" ]
	then
		echo $ip > "$IP.$interface"
	fi
	exec ip address add dev $interface \
		scope link local "$ip/16" broadcast +
	;;
deconfig)
	if [ x$ip = x ]
	then
		exit 1
	fi
	exec ip address del dev $interface local $ip
	;;
esac
exit 1
1	#!/bin/sh
2
3	# only for use as a "zcip" callback script
4	if [ "x$interface" = x ]
5	then
6	exit 1
7	fi
8
9	# zcip should start on boot/resume and various media changes
10	case "$1" in
11	init)
12	# for now, zcip requires the link to be already up,
13	# and it drops links when they go down. that isn't
14	# the most robust model...
15	exit 0
16	;;
17	config)
18	if [ "x$ip" = x ]
19	then
20	exit 1
21	fi
22	# remember $ip for $interface, to use on restart
23	if [ "x$IP" != x -a -w "$IP.$interface" ]
24	then
25	echo $ip > "$IP.$interface"
26	fi
27	exec ip address add dev $interface \
28	scope link local "$ip/16" broadcast +
29	;;
30	deconfig)
31	if [ x$ip = x ]
32	then
33	exit 1
34	fi
35	exec ip address del dev $interface local $ip
36	;;
37	esac
38	exit 1