reactos/dll/win32/msvcrt/dllmain.c

   1 /* $Id$
   2  *
   3  * dllmain.c
   4  *
   5  * ReactOS MSVCRT.DLL Compatibility Library
   6  *
   7  *  THIS SOFTWARE IS NOT COPYRIGHTED
   8  *
   9  *  This source code is offered for use in the public domain. You may
  10  *  use, modify or distribute it freely.
  11  *
  12  *  This code is distributed in the hope that it will be useful but
  13  *  WITHOUT ANY WARRANTY. ALL WARRENTIES, EXPRESS OR IMPLIED ARE HEREBY
  14  *  DISCLAMED. This includes but is not limited to warrenties of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  16  *
  17  * $Revision: 1.24 $
  18  * $Author$
  19  * $Date$
  20  *
  21  */
  22
  23 #include <precomp.h>
  24 #include <internal/wine/msvcrt.h>
  25 #include <locale.h>
  26 #include <mbctype.h>
  27
  28 #include "wine/debug.h"
  29 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  30
  31 /* EXTERNAL PROTOTYPES ********************************************************/
  32
  33 extern int BlockEnvToEnvironA(void);
  34 extern int BlockEnvToEnvironW(void);
  35 extern void FreeEnvironment(char **environment);
  36 extern void _atexit_cleanup(void);
  37
  38 extern unsigned int _osver;
  39 extern unsigned int _winminor;
  40 extern unsigned int _winmajor;
  41 extern unsigned int _winver;
  42
  43 extern char* _acmdln;        /* pointer to ascii command line */
  44 extern wchar_t* _wcmdln;     /* pointer to wide character command line */
  45 #undef _environ
  46 extern char** _environ;      /* pointer to environment block */
  47 extern char** __initenv;     /* pointer to initial environment block */
  48 extern wchar_t** _wenviron;  /* pointer to environment block */
  49 extern wchar_t** __winitenv; /* pointer to initial environment block */
  50
  51
  52 /* LIBRARY GLOBAL VARIABLES ***************************************************/
  53
  54 HANDLE hHeap = NULL;        /* handle for heap */
  55
  56
  57 /* LIBRARY ENTRY POINT ********************************************************/
  58
  59 BOOL
  60 WINAPI
  61 DllMain(PVOID hinstDll, ULONG dwReason, PVOID reserved)
  62 {
  63     OSVERSIONINFOW osvi;
  64     switch (dwReason)
  65     {
  66     case DLL_PROCESS_ATTACH://1
  67         /* initialize version info */
  68         //DPRINT1("Process Attach %d\n", nAttachCount);
  69         //DPRINT1("Process Attach\n");
  70         osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
  71         GetVersionExW( &osvi );
  72         _winver     = (osvi.dwMajorVersion << 8) | osvi.dwMinorVersion;
  73         _winmajor   = osvi.dwMajorVersion;
  74         _winminor   = osvi.dwMinorVersion;
  75         _osver      = osvi.dwBuildNumber;
  76         hHeap = HeapCreate(0, 100000, 0);
  77         if (hHeap == NULL)
  78             return FALSE;
  79
  80         /* create tls stuff */
  81         if (!CreateThreadData())
  82             return FALSE;
  83
  84         if (BlockEnvToEnvironA() < 0)
  85             return FALSE;
  86
  87         if (BlockEnvToEnvironW() < 0)
  88         {
  89             FreeEnvironment(_environ);
  90             return FALSE;
  91         }
  92
  93         _acmdln = _strdup(GetCommandLineA());
  94         _wcmdln = _wcsdup(GetCommandLineW());
  95
  96         /* FIXME: more initializations... */
  97
  98         /* Initialization of the WINE code */
  99         msvcrt_init_mt_locks();
 100         msvcrt_init_io();
 101         setlocale(0, "C");
 102         //_setmbcp(_MB_CP_LOCALE);
 103
 104         TRACE("Attach done\n");
 105         break;
 106
 107     case DLL_THREAD_ATTACH:
 108         break;
 109
 110     case DLL_THREAD_DETACH:
 111         FreeThreadData(NULL);
 112         break;
 113
 114     case DLL_PROCESS_DETACH:
 115         //DPRINT1("Detach %d\n", nAttachCount);
 116         //DPRINT("Detach\n");
 117         /* FIXME: more cleanup... */
 118         /* Deinit of the WINE code */
 119         msvcrt_free_io();
 120         msvcrt_free_mt_locks();
 121
 122         _atexit_cleanup();
 123
 124
 125         /* destroy tls stuff */
 126         DestroyThreadData();
 127
 128         if (__winitenv && __winitenv != _wenviron)
 129             FreeEnvironment((char**)__winitenv);
 130         if (_wenviron)
 131             FreeEnvironment((char**)_wenviron);
 132
 133         if (__initenv && __initenv != _environ)
 134             FreeEnvironment(__initenv);
 135         if (_environ)
 136             FreeEnvironment(_environ);
 137
 138         /* destroy heap */
 139         HeapDestroy(hHeap);
 140
 141         TRACE("Detach done\n");
 142         break;
 143     }
 144
 145     return TRUE;
 146 }
 147
 148 /* EOF */