#!/usr/local/bin/bash

#
# functions to choose which IP to bind.
# for including in others scripts.
#
# (c) kpn, pepe@kahvipannu.fi
#

BIND="0.0.0.0"

function read_ips {
	i=1; 
	for ips in `ifconfig -a | egrep '[[:space:]][0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}[[:space:]]' | awk '{print$2}'`; do ip[$i]="$ips"; let i=++i; 
	done
	echo
	echo 'Look for ip you like bind with up/down arrow keys, then select with enter:'
	echo
}

function choose {

	i=1;
	while [ 0 ]; do 
		if [ $i -eq 0 ] 
		then 
			i=1; 
		fi 
		if [ ! ${ip[$i]} ]
		then 
			let i=i-1; 
		fi 
		echo -en '\r'${ip[$i]}'         \r'
		read -sn 1 k
		case "$k" in 
			"B") let i=i+1; ;; 
    			"A") let i=i-1;	;; 
			"")
				echo 
				echo "BIND to ${ip[$i]} (y/N)?" 
		       		read -sn 1 yn
		      		if [ "$yn" = "y" ] || [ "$yn" = "Y" ]
				then 
					break 
		      		else 
					echo 'Look for ip you like bind with up/down arrow keys, then select with enter:'
				echo
      			fi 
		     	;; 
	   	esac
	done
	BIND=${ip[$i]}
}

read_ips
choose
echo 
echo 'BINDING to ip '$BIND