up proxy

README.md

@@ -1,13 +1,30 @@
 # dns-proxy-server
 dns proxy server
 
+dns server depend `os` , `dns` , `dgram` module on  Node.js eenvironment。use `dgram` module create proxy server , 
+`lookup()` function  and `resolve4()` funtion will be resolve domain to ipv4.
+
 ```
  npm install dns-proxy-server -g
 ```
 
 ### cmd
 
 ```
-  dnsproxy ip port
+  dnsproxy[ ip[ port]]
 ```
 
+### arguments
+
+* `ip` : ipv4 address , default depend on system.
+* `port`: dns server bind the port if provide, default `53`.
+
+### example
+
+```
+ dnsproxy
+ //or
+ dnsproxy  8.8.8.8
+ //or
+ dnsproxy 8.8.8.8 53
+```

bin/start.js

@@ -23,7 +23,8 @@ if ( process.argv.length === 2 ) {
     ip = process.argv[2];
     port = process.argv[3];
 }else{
-    console.log('arguments invalid. please use `dnsproxy[,ip[,port]]`');
+    console.log('arguments invalid. please use `dnsproxy[ ip[ port]]`');
+    return;
 }
 
 proxy.createProxyServer(ip , port);

index.js

@@ -21,15 +21,15 @@ exports.createProxyServer = function(ip , port){
             rs = respond(rinfo);
         dns.lookup( rq.domain , function(err , address , family){
             if ( address !== void 0 ) {
-                console.log('address: ' , address);
+                console.log('address: ' , address , rq.domain);
                 return rs(rq , address);
             }else{
                 dns.resolve4(rq.domain, function(error, addresses){
                     console.log('dns resolve4 server...');
                     if ( addresses === void 0 ) {
                         return console.log('missing...' , rq.domain);
                     }
-                    console.log('address*: ' , addresses);
+                    console.log('address[net]: ' , addresses , rq.domain);
                     return rs(rq , addresses);
                 });
             }

lib/response.js

@@ -5,13 +5,13 @@ var numify = function(ip) {
         return parseInt(n, 10);
     });
 
-    var result = 0;
-    var base = 1;
-
-    for (var i = ip.length-1; i >= 0; i--) {
+    var result = 0 ,base = 1;
+
+    for ( var i = ip.length-1; i >= 0; i-- ) {
         result += ip[i]*base;
         base *= 256;
     }
+    // result = ip[0]*(1<<24) + ip[1]*(1<<16) + ip[2]*(1<<8) + ip[3];
     return result;
 };
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "dns-proxy-server",
-  "version": "1.1.0",
+  "version": "1.1.1",
   "description": "dns proxy server",
   "main": "index.js",
   "bin": {