Add full IPv6 redis connection capability in a full IPv6 network or i…

…n a mix network (IPv4 and IPv6)

README.md

@@ -210,6 +210,7 @@ limits total time for client to reconnect. Value is provided in milliseconds and
 * `max_attempts` defaults to `null`. By default client will try reconnecting until connected. Setting `max_attempts`
 limits total amount of reconnects.
 * `auth_pass` defaults to `null`. By default client will try connecting without auth. If set, client will run redis auth command on connect.
+* `family` defaults to `IPv4`. By default client will try connecting with a IPv4 DNS resolution when a FQDN host is set. You can also specify and IPv6 for forcing a IPv6 FQDN resolution.
 
 ```js
     var redis = require("redis"),

changelog.md

@@ -1,6 +1,13 @@
 Changelog
 =========
 
+## v0.10.4 - Jun 23, 2014
+
+* Add redis-cli createClient(port, host, options) full IPv6 Network capability
+ Specify the family type IPv4 or IPv6 in the options object.
+
+ eg: { 'family' : 'IPv6' }
+
 ## v0.10.3 - May 22, 2014
 
 * Update command list to match Redis 2.8.9 (Charles Feng)

index.js

@@ -1182,16 +1182,21 @@ RedisClient.prototype.eval = RedisClient.prototype.EVAL = function () {
 
 
 exports.createClient = function (port_arg, host_arg, options) {
-    var port = port_arg || default_port,
-        host = host_arg || default_host,
-        redis_client, net_client;
 
-    net_client = net.createConnection(port, host);
+    var cnxOptions = {
+        'port' : port_arg || default_port,
+        'host' : host_arg || default_host,
+        'family' : options.family || 'IPv4'
+    };
+
+    var  redis_client, net_client;
+
+    net_client = net.createConnection(cnxOptions);
 
     redis_client = new RedisClient(net_client, options);
 
-    redis_client.port = port;
-    redis_client.host = host;
+    redis_client.port = cnxOptions.port;
+    redis_client.host = cnxOptions.host;
 
     return redis_client;
 };