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