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'use strict';
module.exports = function ip2long(argIP) {
// discuss at: http://locutus.io/php/ip2long/
// original by: Waldo Malqui Silva (http://waldo.malqui.info)
// improved by: Victor
// revised by: fearphage (http://http/my.opera.com/fearphage/)
// revised by: Theriault (https://github.com/Theriault)
// estarget: es2015
// example 1: ip2long('192.0.34.166')
// returns 1: 3221234342
// example 2: ip2long('0.0xABCDEF')
// returns 2: 11259375
// example 3: ip2long('255.255.255.256')
// returns 3: false
var i = 0;
// PHP allows decimal, octal, and hexadecimal IP components.
// PHP allows between 1 (e.g. 127) to 4 (e.g 127.0.0.1) components.
var pattern = new RegExp(['^([1-9]\\d*|0[0-7]*|0x[\\da-f]+)', '(?:\\.([1-9]\\d*|0[0-7]*|0x[\\da-f]+))?', '(?:\\.([1-9]\\d*|0[0-7]*|0x[\\da-f]+))?', '(?:\\.([1-9]\\d*|0[0-7]*|0x[\\da-f]+))?$'].join(''), 'i');
argIP = argIP.match(pattern); // Verify argIP format.
if (!argIP) {
// Invalid format.
return false;
}
// Reuse argIP variable for component counter.
argIP[0] = 0;
for (i = 1; i < 5; i += 1) {
argIP[0] += !!(argIP[i] || '').length;
argIP[i] = parseInt(argIP[i]) || 0;
}
// Continue to use argIP for overflow values.
// PHP does not allow any component to overflow.
argIP.push(256, 256, 256, 256);
// Recalculate overflow of last component supplied to make up for missing components.
argIP[4 + argIP[0]] *= Math.pow(256, 4 - argIP[0]);
if (argIP[1] >= argIP[5] || argIP[2] >= argIP[6] || argIP[3] >= argIP[7] || argIP[4] >= argIP[8]) {
return false;
}
return argIP[1] * (argIP[0] === 1 || 16777216) + argIP[2] * (argIP[0] <= 2 || 65536) + argIP[3] * (argIP[0] <= 3 || 256) + argIP[4] * 1;
};
//# sourceMappingURL=ip2long.js.map
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