lib/protocol.js
function parseIPv4(addr) {
        if (typeof(addr) !== 'string')
                throw new TypeError('addr (string) is required');

        var octets = addr.split(/\./).map(function (octet) {
                return (parseInt(octet, 10));
        });
        if (octets.length !== 4)
                throw new TypeError('valid IP address required');

        var uint32 = ((octets[0] * Math.pow(256, 3)) +
                      (octets[1] * Math.pow(256, 2)) +
                      (octets[2] * 256) + octets[3]);
        return (uint32);
}
function parseIPv4(addr) {
        if (typeof(addr) !== 'string')
                throw new TypeError('addr (string) is required');

        var octets = addr.split(/\./).map(function (octet) {
                return (parseInt(octet, 10));
        });
        if (octets.length !== 4)
                throw new TypeError('valid IP address required');

        var uint32 = ((octets[0] * Math.pow(256, 3)) +
                      (octets[1] * Math.pow(256, 2)) +
                      (octets[2] * 256) + octets[3]);
        return (uint32);
}
function parseIPv4 ( addr ) { if ( typeof ( addr ) !== 'string' ) throw new TypeError ( 'addr (string) is required' ) ; var octets = addr . split ( / \. / ) . map ( function ( octet ) { return ( parseInt ( octet , 10 ) ) ; } ) ; if ( octets . length !== 4 ) throw new TypeError ( 'valid IP address required' ) ; var uint32 = ( ( octets [ 0 ] * Math . pow ( 256 , 3 ) ) + ( octets [ 1 ] * Math . pow ( 256 , 2 ) ) + ( octets [ 2 ] * 256 ) + octets [ 3 ] ) ; return ( uint32 ) ; }
turns a dotted-decimal address into a UInt32
turns a dotted - decimal address into a UInt32