| "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 |
