Norwegian Polka Music

    dns-graceful-stack-switch

    0.1.1 • Public • Published

    dns-graceful-stack-switch

    Build Status NPM version

    Monkey patch DNS lookup method for node.js.

    Why?

    If you used node.js with disabled IPv4 - you got exception (ENETUNREACH) in most of network operations, but ping6 address working fine.

    To fix this error with minimal amount of code (you still can use dns.resolve6 and get valid IPv6 addresses) - monkey patched lookup method was written.

    How?

    // Monkey patch
    require('dns-graceful-stack-switch')(6);
    // Remove monkey patch
    require('dns-graceful-stack-switch')(null, true);

    This module returns function(defaultVersion, remove).

    • defaultVersion - IP stack version that will be used first to lookup address. If it fails - another will be used. Defaults to process.env.NODE_DNS_GRACEFUL_STACK_SWITCH_DEFAULT and after that to 4.
    • remove - remove monkeypatch. Defaults to false.

    After executing dns.lookup will be loaded with require and lookup method will be replaced.

    Node.JS way

    This bug was "patched" in Node.js, but magic option in net.connect (which gives you ability to write right http.Agent) released only in Node.js 0.11.6.

    To run the tests:

    Unix/Macintosh:

    make test
    

    Install

    npm i dns-graceful-stack-switch

    DownloadsWeekly Downloads

    3

    Version

    0.1.1

    License

    MIT

    Last publish

    Collaborators

    • floatdrop