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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const netmask_1 = require("netmask");
const util_1 = require("./util");
/**
* True iff the IP address of the host matches the specified IP address pattern.
*
* Pattern and mask specification is done the same way as for SOCKS configuration.
*
* Examples:
*
* ``` js
* isInNet(host, "198.95.249.79", "255.255.255.255")
* // is true iff the IP address of host matches exactly 198.95.249.79.
*
* isInNet(host, "198.95.0.0", "255.255.0.0")
* // is true iff the IP address of the host matches 198.95.*.*.
* ```
*
* @param {String} host a DNS hostname, or IP address. If a hostname is passed,
* it will be resoved into an IP address by this function.
* @param {String} pattern an IP address pattern in the dot-separated format mask.
* @param {String} mask for the IP address pattern informing which parts of the
* IP address should be matched against. 0 means ignore, 255 means match.
* @return {Boolean}
*/
async function isInNet(host, pattern, mask) {
const family = 4;
try {
const ip = await (0, util_1.dnsLookup)(host, { family });
if (typeof ip === 'string') {
const netmask = new netmask_1.Netmask(pattern, mask);
return netmask.contains(ip);
}
}
catch (err) {
// ignore
}
return false;
}
exports.default = isInNet;
//# sourceMappingURL=isInNet.js.map