From 20ca866271027b549edcd612b994d42b4b6f04a5 Mon Sep 17 00:00:00 2001
From: Fedor Indutny <fedor@indutny.com>
Date: Tue, 13 Jan 2015 16:16:15 +0300
Subject: [PATCH] dns: remove AI_V4MAPPED hint flag on FreeBSD

FreeBSD does not support V4MAPPED.

PR-URL: https://github.com/iojs/io.js/pull/332
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>
---
 lib/dns.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/dns.js b/lib/dns.js
index 18023fab162..1afc07c99d2 100644
--- a/lib/dns.js
+++ b/lib/dns.js
@@ -125,6 +125,11 @@ exports.lookup = function lookup(hostname, options, callback) {
         hints !== (exports.ADDRCONFIG | exports.V4MAPPED)) {
       throw new TypeError('invalid argument: hints must use valid flags');
     }
+
+    // FIXME(indutny): V4MAPPED on FreeBSD results in EAI_BADFLAGS, because
+    // the libc does not support it
+    if (process.platform === 'freebsd' && family !== 6)
+      hints &= ~exports.V4MAPPED;
   } else {
     family = options >>> 0;
   }