source: trip-planner-front/node_modules/default-gateway/freebsd.js@ eed0bf8

Last change on this file since eed0bf8 was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
File size: 1.1 KB
Line 
1"use strict";
2
3const net = require("net");
4const execa = require("execa");
5const dests = ["default", "0.0.0.0", "0.0.0.0/0", "::", "::/0"];
6
7const args = {
8 v4: ["-rn", "-f", "inet"],
9 v6: ["-rn", "-f", "inet6"],
10};
11
12const parse = stdout => {
13 let result;
14
15 (stdout || "").trim().split("\n").some(line => {
16 const results = line.split(/ +/) || [];
17 const target = results[0];
18 const gateway = results[1];
19 const iface = results[3];
20 if (dests.indexOf(target) !== -1 && gateway && net.isIP(gateway)) {
21 result = {gateway, interface: (iface ? iface : null)};
22 return true;
23 }
24 });
25
26 if (!result) {
27 throw new Error("Unable to determine default gateway");
28 }
29
30 return result;
31};
32
33const promise = family => {
34 return execa.stdout("netstat", args[family]).then(stdout => {
35 return parse(stdout);
36 });
37};
38
39const sync = family => {
40 const result = execa.sync("netstat", args[family]);
41 return parse(result.stdout);
42};
43
44module.exports.v4 = () => promise("v4");
45module.exports.v6 = () => promise("v6");
46
47module.exports.v4.sync = () => sync("v4");
48module.exports.v6.sync = () => sync("v6");
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