Fix SOCKS5 proxy when client makes requests with IP address

CHANGELOG.md

@@ -2,6 +2,10 @@
 All notable changes to this project will be documented in this file.
 I will do my best to guarantee that this project adheres to [Semantic Versioning](http://semver.org/) after 1.0.0, but please do read change log before updating.
 
+## [0.5.2]
+## Fixed
+- SOCKS5 proxy correctly handles connections with IP address.
+
 ## [0.5.1]
 ## Added
 - Now one can initailize a `Port` by an integer directly.

src/Socket/ProxySocket/SOCKS5ProxySocket.swift

@@ -63,12 +63,12 @@ public class SOCKS5ProxySocket: ProxySocket {
         case SocketTag.SOCKS5.ConnectIPv4:
             var address = [Int8](count: Int(INET_ADDRSTRLEN), repeatedValue: 0)
             inet_ntop(AF_INET, data.bytes, &address, socklen_t(INET_ADDRSTRLEN))
-            destinationHost = NSString(bytes: &address, length: Int(INET_ADDRSTRLEN), encoding: NSUTF8StringEncoding)! as String
+            destinationHost = NSString(CString: &address, encoding: NSUTF8StringEncoding)! as String
             socket.readDataToLength(2, withTag: SocketTag.SOCKS5.ConnectPort)
         case SocketTag.SOCKS5.ConnectIPv6:
             var address = [Int8](count: Int(INET6_ADDRSTRLEN), repeatedValue: 0)
             inet_ntop(AF_INET, data.bytes, &address, socklen_t(INET6_ADDRSTRLEN))
-            destinationHost = NSString(bytes: &address, length: Int(INET6_ADDRSTRLEN), encoding: NSUTF8StringEncoding)! as String
+            destinationHost = NSString(CString: &address, encoding: NSUTF8StringEncoding)! as String
             socket.readDataToLength(2, withTag: SocketTag.SOCKS5.ConnectPort)
         case SocketTag.SOCKS5.ConnectDomainLength:
             let length: UInt8 = UnsafePointer<UInt8>(data.bytes).memory