Sha256: c07be294434ce99fe93cfd45e9609dfe9872b5b6a51f600951303ccca65386b3
Contents?: true
Size: 1.52 KB
Versions: 26
Compression:
Stored size: 1.52 KB
Contents
"use strict";
const net = require("net");
const os = require("os");
const execa = require("execa");
const args = {
v4: ["-4", "r"],
v6: ["-6", "r"],
};
const parse = (stdout, family) => {
let result;
(stdout || "").trim().split("\n").some(line => {
const results = /default( via .+?)?( dev .+?)( |$)/.exec(line) || [];
const gateway = (results[1] || "").substring(5);
const iface = (results[2] || "").substring(5);
if (gateway && net.isIP(gateway)) { // default via 1.2.3.4 dev en0
result = {gateway, interface: (iface ? iface : null)};
return true;
} else if (iface && !gateway) { // default via dev en0
const interfaces = os.networkInterfaces();
const addresses = interfaces[iface];
if (!addresses || !addresses.length) return;
addresses.some(addr => {
if (addr.family.substring(2) === family && net.isIP(addr.address)) {
result = {gateway: addr.address, interface: (iface ? iface : null)};
return true;
}
});
}
});
if (!result) {
throw new Error("Unable to determine default gateway");
}
return result;
};
const promise = family => {
return execa.stdout("ip", args[family]).then(stdout => {
return parse(stdout, family);
});
};
const sync = family => {
const result = execa.sync("ip", args[family]);
return parse(result.stdout, family);
};
module.exports.v4 = () => promise("v4");
module.exports.v6 = () => promise("v6");
module.exports.v4.sync = () => sync("v4");
module.exports.v6.sync = () => sync("v6");
Version data entries
26 entries across 25 versions & 8 rubygems