#!/bin/sh
-. /etc/nvram.sh
-
alias debug=${DEBUG:-:}
# valid interface?
hotplug_dev() {
env -i ACTION=$1 INTERFACE=$2 /sbin/hotplug net
}
-
-bitcount () {
- local c=$1
- echo $((
- c=((c>> 1)&0x55555555)+(c&0x55555555),
- c=((c>> 2)&0x33333333)+(c&0x33333333),
- c=((c>> 4)&0x0f0f0f0f)+(c&0x0f0f0f0f),
- c=((c>> 8)&0x00ff00ff)+(c&0x00ff00ff),
- c=((c>>16)&0x0000ffff)+(c&0x0000ffff)
- ))
-}
-
-valid_netmask () {
- return $((-($1)&~$1))
-}
-
-ip2int () (
- set $(echo $1 | tr '\.' ' ')
- echo $(($1<<24|$2<<16|$3<<8|$4))
-)
-
-int2ip () {
- echo $(($1>>24&255)).$(($1>>16&255)).$(($1>>8&255)).$(($1&255))
-}