Added examples/apple
This commit is contained in:
Joseph Henry
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//
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// ViewController.swift
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// Example_iOS_App
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//
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// Created by Joseph Henry on 7/10/16.
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// Copyright © 2016 ZeroTier Inc. All rights reserved.
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//
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import UIKit
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class ViewController: UIViewController {
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let zt = ZTSDK();
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var serverPort:Int16 = 8080
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var serverAddr:String = "10.9.9.100"
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var selectedProtocol:Int32 = 0
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var sock:Int32 = -1
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var accepted_sock:Int32 = -1
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@IBOutlet weak var txtAddr: UITextField!
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@IBOutlet weak var txtPort: UITextField!
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@IBOutlet weak var txtTX: UITextField!
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@IBOutlet weak var txtRX: UITextField!
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@IBOutlet weak var btnTX: UIButton!
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@IBOutlet weak var btnConnect: UIButton!
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@IBOutlet weak var btnBind: UIButton!
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@IBOutlet weak var btnRX: UIButton!
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@IBAction func UI_RX(sender: AnyObject) {
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// Use ordinary read/write calls on ZeroTier socket
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// TCP
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if(selectedProtocol == SOCK_STREAM) {
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var buffer = [UInt8](count: 100, repeatedValue: 0)
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read(accepted_sock, &buffer, 100);
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print(buffer)
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}
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// UDP
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if(selectedProtocol == SOCK_DGRAM) {
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var buffer = [UInt8](count: 100, repeatedValue: 0)
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read(Int32(sock), &buffer, 100);
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print(buffer)
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}
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}
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@IBAction func UI_TX(sender: AnyObject) {
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// Use ordinary read/write calls on ZeroTier socket
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// TCP
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if(selectedProtocol == SOCK_STREAM) {
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write(Int32(sock), txtTX.description, txtTX.description.characters.count);
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}
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// UDP
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if(selectedProtocol == SOCK_DGRAM) {
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sendto(Int32(sock), txtTX.description, txtTX.description.characters.count, 0, UnsafePointer<sockaddr>([udp_addr]), UInt32(udp_addr.sin_len))
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}
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}
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@IBOutlet weak var txtNWID: UITextField!
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@IBOutlet weak var btnJoinNetwork: UIButton!
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@IBAction func UI_JoinNetwork(sender: AnyObject) {
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zt.join_network(txtNWID.text!)
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}
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@IBOutlet weak var btnLeaveNetwork: UIButton!
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@IBAction func UI_LeaveNetwork(sender: AnyObject) {
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zt.leave_network(txtNWID.text!)
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}
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@IBOutlet weak var segmentProtocol: UISegmentedControl!
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@IBAction func protocolSelected(sender: AnyObject) {
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switch sender.selectedSegmentIndex
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{
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case 0:
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selectedProtocol = SOCK_STREAM
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case 1:
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selectedProtocol = SOCK_DGRAM
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default:
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break;
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}
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}
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// CONNECT
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var connect_thread : NSThread!
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func attempt_connect()
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{
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// TCP
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if(selectedProtocol == SOCK_STREAM)
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{
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sock = zt.socket(AF_INET, SOCK_STREAM, 0)
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let ztaddr: ZTAddress = ZTAddress(AF_INET, serverAddr, serverPort)
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let connect_err = zt.connect(sock, ztaddr)
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print("connect_err = \(connect_err),\(errno)")
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if connect_err < 0 {
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let err = errno
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print("Error connecting IPv4 socket \(err)")
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return
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}
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}
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// UDP
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if(selectedProtocol == SOCK_DGRAM)
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{
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}
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}
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// Connect to remote host on ZeroTier virtual network
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@IBAction func UI_Connect(sender: AnyObject) {
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), {
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self.connect_thread = NSThread(target:self, selector:#selector(ViewController.attempt_connect), object:nil)
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self.connect_thread.start()
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});
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}
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// BIND
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var bind_thread : NSThread!
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func attempt_bind()
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{
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var err:Int32
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// TCP
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if(selectedProtocol == SOCK_STREAM)
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{
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sock = zt_socket(AF_INET, SOCK_STREAM, 0)
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let ztaddr: ZTAddress = ZTAddress(AF_INET, serverAddr, serverPort)
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let bind_err = zt.bind(sock, ztaddr)
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print("bind_err = \(bind_err),\(errno)")
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if bind_err < 0 {
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let err = errno
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print("Error binding IPv4 socket \(err)")
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return
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}
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// Put socket into listening state
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zt_listen(Int32(sock), 1);
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while(accepted_sock < 0) {
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accepted_sock = zt.accept(sock, ztaddr)
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}
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print("accepted connection")
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}
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// UDP
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if(selectedProtocol == SOCK_DGRAM)
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{
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let ztaddr: ZTAddress = ZTAddress(AF_INET, serverAddr, serverPort)
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sock = zt_socket(AF_INET, SOCK_DGRAM, 0)
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err = zt.bind(sock, ztaddr)
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print("bind_err = ", err)
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err = zt.listen(sock, 0)
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print("listen_err = ", err)
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}
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}
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@IBOutlet weak var txtAddress: UITextField!
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// Bind a ZeroTier socket
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@IBAction func UI_Bind(sender: AnyObject) {
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), {
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self.bind_thread = NSThread(target:self, selector:#selector(ViewController.attempt_bind), object:nil)
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self.bind_thread.start()
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});
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}
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@IBOutlet weak var lblAddress: UILabel!
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var udp_addr:sockaddr_in!
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// Watch for incoming data
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var rx_thread : NSThread!
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func update_rx() {
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while(true)
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{
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sleep(1)
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dispatch_async(dispatch_get_main_queue()) {
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var str_buf = [Int8](count: 16, repeatedValue: 0)
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self.zt.get_ipv4_address(self.txtNWID.text!, &str_buf)
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self.lblAddress.text = String.fromCString(str_buf)
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print("addr = ", String.fromCString(str_buf))
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}
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// TCP
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if(selectedProtocol == SOCK_STREAM)
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{
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let len = 32
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var buffer = [UInt8](count: len, repeatedValue: 0)
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let n = read(accepted_sock, &buffer, len);
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if(n > 0)
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{
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if let str = String(data: NSData(bytes: &buffer, length: len), encoding: NSUTF8StringEncoding) {
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dispatch_async(dispatch_get_main_queue()) {
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self.txtRX.text = str
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}
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} else {
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print("not a valid UTF-8 sequence")
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}
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}
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}
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// UDP
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/*
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if(selectedProtocol == SOCK_DGRAM)
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{
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let len = 32
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var buffer = [UInt8](count: len, repeatedValue: 0)
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//udp_addr = sockaddr_in(sin_len: UInt8(sizeof(sockaddr_in)),
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// sin_family: UInt8(AF_INET),
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// sin_port: UInt16(0).bigEndian,
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// sin_addr: in_addr(s_addr: 0),
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// sin_zero: (0,0,0,0,0,0,0,0))
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//var addrlen:socklen_t = 0;
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//var legIntPtr = withUnsafeMutablePointer(&addrlen, { $0 })
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//let n = recvfrom(sock, &buffer, len, 0, UnsafeMutablePointer<sockaddr>([udp_addr]), legIntPtr)
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var socketAddress = sockaddr_storage()
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var socketAddressLength = socklen_t(sizeof(sockaddr_storage.self))
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let bytesRead = withUnsafeMutablePointers(&socketAddress, &socketAddressLength) {
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recvfrom(sock, UnsafeMutablePointer<Void>(buffer), len, 0, UnsafeMutablePointer($0), UnsafeMutablePointer($1))
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//recvfrom(<#T##Int32#>, <#T##UnsafeMutablePointer<Void>#>, <#T##Int#>, <#T##Int32#>, <#T##UnsafeMutablePointer<sockaddr>#>, <#T##UnsafeMutablePointer<socklen_t>#>)
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}
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if(bytesRead > 0)
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{
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print("socketAddressLength = ", socketAddressLength);
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let bytesWritten = withUnsafePointer(&socketAddress) {
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print("TXing...\n");
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sendto(sock, UnsafePointer(buffer), bytesRead, 0, UnsafePointer<sockaddr>($0), socketAddressLength)
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}
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print("bytesWritten = ", bytesWritten);
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//let bytesWritten = withUnsafePointer(&socketAddress.sin) {
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// sendto(sock, buffer, len, 0, UnsafePointer($0), socklen_t(socketAddress.sin.sin_len))
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//}
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if let str = String(data: NSData(bytes: &buffer, length: len), encoding: NSUTF8StringEncoding) {
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dispatch_async(dispatch_get_main_queue()) {
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self.txtRX.text = str
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}
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} else {
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print("not a valid UTF-8 sequence")
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}
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}
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}
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*/
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}
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}
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override func viewDidLoad() {
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super.viewDidLoad()
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txtNWID.text = "8056c2e21c000001"
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txtTX.text = "welcome to the machine"
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txtAddr.text = "0.0.0.0"
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serverAddr = "0.0.0.0"
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txtPort.text = "8080"
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serverPort = 8080
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selectedProtocol = SOCK_STREAM
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print("Starting ZeroTier...\n");
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zt.start_service(nil);
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print("Joining network...\n");
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zt.join_network(txtNWID.text!);
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print("Complete\n");
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// UI RX update
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_HIGH, 0), {
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self.rx_thread = NSThread(target:self, selector:#selector(ViewController.update_rx), object:nil)
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self.rx_thread.start()
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});
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// Do any additional setup after loading the view, typically from a nib.
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}
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override func didReceiveMemoryWarning() {
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super.didReceiveMemoryWarning()
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// Dispose of any resources that can be recreated.
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}
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}
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