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'use strict';
module.exports = function inet_pton(a) {
// eslint-disable-line camelcase
// discuss at: http://locutus.io/php/inet_pton/
// original by: Theriault (https://github.com/Theriault)
// example 1: inet_pton('::')
// returns 1: '\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0'
// example 2: inet_pton('127.0.0.1')
// returns 2: '\x7F\x00\x00\x01'
var r;
var m;
var x;
var i;
var j;
var f = String.fromCharCode;
// IPv4
m = a.match(/^(?:\d{1,3}(?:\.|$)){4}/);
if (m) {
m = m[0].split('.');
m = f(m[0]) + f(m[1]) + f(m[2]) + f(m[3]);
// Return if 4 bytes, otherwise false.
return m.length === 4 ? m : false;
}
r = /^((?:[\da-f]{1,4}(?::|)){0,8})(::)?((?:[\da-f]{1,4}(?::|)){0,8})$/;
// IPv6
m = a.match(r);
if (m) {
// Translate each hexadecimal value.
for (j = 1; j < 4; j++) {
// Indice 2 is :: and if no length, continue.
if (j === 2 || m[j].length === 0) {
continue;
}
m[j] = m[j].split(':');
for (i = 0; i < m[j].length; i++) {
m[j][i] = parseInt(m[j][i], 16);
// Would be NaN if it was blank, return false.
if (isNaN(m[j][i])) {
// Invalid IP.
return false;
}
m[j][i] = f(m[j][i] >> 8) + f(m[j][i] & 0xFF);
}
m[j] = m[j].join('');
}
x = m[1].length + m[3].length;
if (x === 16) {
return m[1] + m[3];
} else if (x < 16 && m[2].length > 0) {
return m[1] + new Array(16 - x + 1).join('\x00') + m[3];
}
}
// Invalid IP
return false;
};
//# sourceMappingURL=inet_pton.js.map
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