ip-subnet/lib/subnet.js

A library of IP Subnetting utility functions

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.Subnet = void 0;
const cidr_1 = require("./cidr");
class Subnet {
    constructor(networkAddress, netMask) {
        this._netMask = netMask;
        this._networkAddress = networkAddress.getNetworkAddress(netMask);
    }
    prefixLength() {
        return (this._netMask.toBinaryString().match(/1/g) || []).length;
    }
    size() {
        return Math.pow(2, 32 - this.prefixLength());
    }
    get networkAddress() {
        return this._networkAddress;
    }
    get netMask() {
        return this._netMask;
    }
    static parseCIDR(cidr) {
        try {
            const c = cidr_1.CIDR.parse(cidr);
            return new Subnet(c.networkAddress, c.netMask);
        }
        catch (_a) {
            throw new Error(`Invalid CIDR: ${cidr}`);
        }
    }
}
exports.Subnet = Subnet;