reactos/lib/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 <stdio.h>
  25 #include <internal/tls.h>
  26 #include <stdlib.h>
  27 #include <internal/wine/msvcrt.h>
  28
  29 #define NDEBUG
  30 #include <internal/msvcrtdbg.h>
  31
  32
  33 /* EXTERNAL PROTOTYPES ********************************************************/
  34
  35 //void __fileno_init(void);
  36 extern BOOL __fileno_init(void);
  37 extern int BlockEnvToEnvironA(void);
  38 extern int BlockEnvToEnvironW(void);
  39 extern void FreeEnvironment(char **environment);
  40
  41 extern unsigned int _osver;
  42 extern unsigned int _winminor;
  43 extern unsigned int _winmajor;
  44 extern unsigned int _winver;
  45
  46 extern char* _acmdln;        /* pointer to ascii command line */
  47 extern wchar_t* _wcmdln;     /* pointer to wide character command line */
  48 #undef _environ
  49 extern char** _environ;      /* pointer to environment block */
  50 extern char** __initenv;     /* pointer to initial environment block */
  51 extern wchar_t** _wenviron;  /* pointer to environment block */
  52 extern wchar_t** __winitenv; /* pointer to initial environment block */
  53
  54
  55 /* LIBRARY GLOBAL VARIABLES ***************************************************/
  56
  57 HANDLE hHeap = NULL;        /* handle for heap */
  58
  59
  60 /* LIBRARY ENTRY POINT ********************************************************/
  61
  62 BOOL
  63 STDCALL
  64 DllMain(PVOID hinstDll, ULONG dwReason, PVOID reserved)
  65 {
  66     switch (dwReason)
  67     {
  68     case DLL_PROCESS_ATTACH://1
  69         /* initialize version info */
  70         //DPRINT1("Process Attach %d\n", nAttachCount);
  71         //DPRINT1("Process Attach\n");
  72         _osver = GetVersion();
  73         _winmajor = (_osver >> 8) & 0xFF;
  74         _winminor = _osver & 0xFF;
  75         _winver = (_winmajor << 8) + _winminor;
  76         _osver = (_osver >> 16) & 0xFFFF;
  77         hHeap = HeapCreate(0, 100000, 0);
  78         if (hHeap == NULL)
  79             return FALSE;
  80         if (!__fileno_init())
  81             return FALSE;
  82
  83         /* create tls stuff */
  84         if (!CreateThreadData())
  85             return FALSE;
  86
  87         if (BlockEnvToEnvironA() < 0)
  88             return FALSE;
  89
  90         if (BlockEnvToEnvironW() < 0)
  91         {
  92             FreeEnvironment((char**)_wenviron);
  93             return FALSE;
  94         }
  95
  96         _acmdln = _strdup(GetCommandLineA());
  97         _wcmdln = _wcsdup(GetCommandLineW());
  98
  99         /* FIXME: more initializations... */
 100
 101         /* FIXME: Initialization of the WINE code */
 102         msvcrt_init_mt_locks();
 103
 104         DPRINT("Attach done\n");
 105         break;
 106
 107     case DLL_THREAD_ATTACH://2
 108         break;
 109
 110     case DLL_THREAD_DETACH://4
 111         FreeThreadData(NULL);
 112         break;
 113
 114     case DLL_PROCESS_DETACH://0
 115         //DPRINT1("Detach %d\n", nAttachCount);
 116         //DPRINT("Detach\n");
 117         /* FIXME: more cleanup... */
 118         _fcloseall();
 119
 120         /* destroy tls stuff */
 121         DestroyThreadData();
 122
 123         if (__winitenv && __winitenv != _wenviron)
 124             FreeEnvironment((char**)__winitenv);
 125         if (_wenviron)
 126             FreeEnvironment((char**)_wenviron);
 127
 128         if (__initenv && __initenv != _environ)
 129             FreeEnvironment(__initenv);
 130         if (_environ)
 131             FreeEnvironment(_environ);
 132
 133         /* destroy heap */
 134         HeapDestroy(hHeap);
 135
 136         DPRINT("Detach done\n");
 137         break;
 138     }
 139
 140     return TRUE;
 141 }
 142
 143 /* EOF */