From 29746b5164ad9232de0577e77fd4030f530a9f6b Mon Sep 17 00:00:00 2001
From: Christopher Jeffrey <chjjeffrey@gmail.com>
Date: Sat, 17 May 2014 21:47:29 -0500
Subject: [PATCH] utils: add simple utils.isIP in place of net.isIP.

Signed-off-by: Fedor Indutny <fedor@indutny.com>
---
 lib/bcoin/peer.js  |  5 ++---
 lib/bcoin/utils.js | 13 +++++++++++++
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/lib/bcoin/peer.js b/lib/bcoin/peer.js
index 9949dc1c..153305ab 100644
--- a/lib/bcoin/peer.js
+++ b/lib/bcoin/peer.js
@@ -1,6 +1,5 @@
 var inherits = require('inherits');
 var EventEmitter = require('events').EventEmitter;
-var net = require('net');
 
 var bcoin = require('../bcoin');
 var utils = bcoin.utils;
@@ -358,10 +357,10 @@ Peer.prototype._handleGetAddr = function handleGetAddr() {
     if (!peer || ~used.indexOf(peer.host))
       return;
     used.push(peer.host);
-    return !!peer.host && net.isIP(peer.host);
+    return !!peer.host && utils.isIP(peer.host);
   }).map(function(peer) {
     var ip = peer.host;
-    var ver = net.isIP(ip);
+    var ver = utils.isIP(ip);
     return {
       ipv4: ver === 4 ? ip : '127.0.0.1',
       ipv6: ver === 6 ? ip : '0000:0000:0000:0000:0000:0000:0000:ffff',
diff --git a/lib/bcoin/utils.js b/lib/bcoin/utils.js
index 9554d79d..748a3d06 100644
--- a/lib/bcoin/utils.js
+++ b/lib/bcoin/utils.js
@@ -457,3 +457,16 @@ utils.toBTC = function toBTC(satoshi) {
   }
   return satoshi.div(m).toString(10) + lo.replace(/0+$/, '');
 };
+
+utils.isIP = function(ip) {
+  if (typeof ip !== 'string')
+    return 0;
+
+  if (~ip.indexOf('.'))
+    return 4;
+
+  if (~ip.indexOf(':'))
+    return 6;
+
+  return 0;
+};