dll/win32/ws2_32_new/src/dllmain.c

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS WinSock 2 API
   4  * FILE:        dllmain.c
   5  * PURPOSE:     DLL Entrypoint
   6  * PROGRAMMER:  Alex Ionescu (alex@relsoft.net)
   7  */
   8
   9 /*
  10  * BUGS:
  11  *       - GetAddrInfoW is completely IPv4 hacked and has some dirty code.
  12  *       - LookupNodeByAddr is missing some IPv6 support.
  13  */
  14
  15 /* INCLUDES ******************************************************************/
  16
  17 #include <ws2_32.h>
  18
  19 /* DATA **********************************************************************/
  20
  21 HANDLE WsSockHeap;
  22 HINSTANCE WsDllHandle;
  23 DWORD GlobalTlsIndex = TLS_OUT_OF_INDEXES;
  24
  25 /* FUNCTIONS *****************************************************************/
  26
  27 BOOL
  28 APIENTRY
  29 DllMain(HANDLE hModule,
  30         DWORD dwReason,
  31         LPVOID lpReserved)
  32 {
  33     PWSPROCESS WsProcess;
  34
  35     /* Main Entrypoint */
  36     switch (dwReason)
  37     {
  38         case DLL_PROCESS_ATTACH:
  39             /* Save DLL Handle */
  40             WsDllHandle = hModule;
  41
  42             /* Get Global Heap */
  43             WsSockHeap = GetProcessHeap();
  44
  45             /* TLS Allocation */
  46             if (GlobalTlsIndex == TLS_OUT_OF_INDEXES)
  47                         {
  48                                 GlobalTlsIndex = TlsAlloc();
  49                                 if (GlobalTlsIndex == TLS_OUT_OF_INDEXES)
  50                                 {
  51                                         return FALSE;
  52                                 }
  53                         }
  54
  55             /* Initialize some critical sections */
  56             WsCreateStartupSynchronization();
  57             WsAsyncGlobalInitialize();
  58             WsRasInitializeAutodial();
  59             break;
  60
  61         case DLL_THREAD_ATTACH:
  62             break;
  63
  64         case DLL_THREAD_DETACH:
  65             /* Destroy the attached Winsock Thread */
  66             WsThreadDestroyCurrentThread();
  67             break;
  68
  69         case DLL_PROCESS_DETACH:
  70             /* Make sure we were initialized */
  71             if (!WsDllHandle) break;
  72
  73             /* Check if this was a FreeLibrary call (ie: not process cleanup) */
  74             if (lpReserved)
  75             {
  76                 /* Destroy the thread which is exiting */
  77                 WsThreadDestroyCurrentThread();
  78
  79                 /* Check if we have a process and destroy it */
  80                 WsProcess = WsGetProcess();
  81                 if (WsProcess) WsProcDelete(WsProcess);
  82
  83                 /* Cleanup the Thread and Socket managers */
  84                 WsThreadCleanup();
  85                 WsSockCleanup();
  86
  87                 /* Cleanup critical sections */
  88                 WsDestroyStartupSynchronization();
  89                 WsAsyncGlobalTerminate();
  90
  91                 /* Free the TLS Index */
  92                 TlsFree(GlobalTlsIndex);
  93             }
  94
  95             /* Cleanup RAS auto-dial helper */
  96             WsRasUninitializeAutodial();
  97
  98             /* Clear our handle */
  99             WsDllHandle = NULL;
 100             break;
 101     }
 102
 103     /* Return to OS */
 104     return TRUE;
 105 }
 106
 107 /*
 108  * @implemented
 109  */
 110 INT
 111 WSAAPI
 112 WSAGetLastError(VOID)
 113 {
 114     /* Let the Windows Function do the work */
 115     return GetLastError();
 116 }
 117
 118 /*
 119  * @implemented
 120  */
 121 VOID
 122 WSAAPI
 123 WSASetLastError(IN INT iError)
 124 {
 125     /* Let the Windows Function do the work */
 126     SetLastError(iError);
 127 }