dlls/msvcrt/data.c

   1 /*
   2  * msvcrt.dll dll data items
   3  *
   4  * Copyright 2000 Jon Griffiths
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <math.h>
  25 #include "msvcrt.h"
  26 #include "wine/library.h"
  27 #include "wine/unicode.h"
  28 #include "wine/debug.h"
  29
  30 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  31
  32 int MSVCRT___argc;
  33 unsigned int MSVCRT_basemajor;/* FIXME: */
  34 unsigned int MSVCRT_baseminor;/* FIXME: */
  35 unsigned int MSVCRT_baseversion; /* FIXME: */
  36 unsigned int MSVCRT__commode;
  37 unsigned int MSVCRT__fmode;
  38 unsigned int MSVCRT_osmajor;/* FIXME: */
  39 unsigned int MSVCRT_osminor;/* FIXME: */
  40 unsigned int MSVCRT_osmode;/* FIXME: */
  41 unsigned int MSVCRT__osver;
  42 unsigned int MSVCRT_osversion; /* FIXME: */
  43 unsigned int MSVCRT__winmajor;
  44 unsigned int MSVCRT__winminor;
  45 unsigned int MSVCRT__winver;
  46 unsigned int MSVCRT__sys_nerr; /* FIXME: not accessible from Winelib apps */
  47 char**       MSVCRT__sys_errlist; /* FIXME: not accessible from Winelib apps */
  48 unsigned int MSVCRT___setlc_active;
  49 unsigned int MSVCRT___unguarded_readlc_active;
  50 double MSVCRT__HUGE;
  51 char **MSVCRT___argv;
  52 MSVCRT_wchar_t **MSVCRT___wargv;
  53 char *MSVCRT__acmdln;
  54 MSVCRT_wchar_t *MSVCRT__wcmdln;
  55 char **_environ = 0;
  56 MSVCRT_wchar_t **_wenviron = 0;
  57 char **MSVCRT___initenv = 0;
  58 MSVCRT_wchar_t **MSVCRT___winitenv = 0;
  59 int MSVCRT_app_type;
  60 char* MSVCRT__pgmptr = 0;
  61 WCHAR* MSVCRT__wpgmptr = 0;
  62
  63 /* Get a snapshot of the current environment
  64  * and construct the __p__environ array
  65  *
  66  * The pointer returned from GetEnvironmentStrings may get invalid when
  67  * some other module cause a reallocation of the env-variable block
  68  *
  69  * blk is an array of pointers to environment strings, ending with a NULL
  70  * and after that the actual copy of the environment strings, ending in a \0
  71  */
  72 char ** msvcrt_SnapshotOfEnvironmentA(char **blk)
  73 {
  74   char* environ_strings = GetEnvironmentStringsA();
  75   int count = 1, len = 1, i = 0; /* keep space for the trailing NULLS */
  76   char *ptr;
  77
  78   for (ptr = environ_strings; *ptr; ptr += strlen(ptr) + 1)
  79   {
  80     count++;
  81     len += strlen(ptr) + 1;
  82   }
  83   if (blk)
  84       blk = HeapReAlloc( GetProcessHeap(), 0, blk, count* sizeof(char*) + len );
  85   else
  86     blk = HeapAlloc(GetProcessHeap(), 0, count* sizeof(char*) + len );
  87
  88   if (blk)
  89     {
  90       if (count)
  91         {
  92           memcpy(&blk[count],environ_strings,len);
  93           for (ptr = (char*) &blk[count]; *ptr; ptr += strlen(ptr) + 1)
  94             {
  95               blk[i++] = ptr;
  96             }
  97         }
  98       blk[i] = NULL;
  99     }
 100   FreeEnvironmentStringsA(environ_strings);
 101   return blk;
 102 }
 103
 104 MSVCRT_wchar_t ** msvcrt_SnapshotOfEnvironmentW(MSVCRT_wchar_t **wblk)
 105 {
 106   MSVCRT_wchar_t* wenviron_strings = GetEnvironmentStringsW();
 107   int count = 1, len = 1, i = 0; /* keep space for the trailing NULLS */
 108   MSVCRT_wchar_t *wptr;
 109
 110   for (wptr = wenviron_strings; *wptr; wptr += strlenW(wptr) + 1)
 111   {
 112     count++;
 113     len += strlenW(wptr) + 1;
 114   }
 115   if (wblk)
 116       wblk = HeapReAlloc( GetProcessHeap(), 0, wblk, count* sizeof(MSVCRT_wchar_t*) + len * sizeof(MSVCRT_wchar_t));
 117   else
 118     wblk = HeapAlloc(GetProcessHeap(), 0, count* sizeof(MSVCRT_wchar_t*) + len * sizeof(MSVCRT_wchar_t));
 119   if (wblk)
 120     {
 121       if (count)
 122         {
 123           memcpy(&wblk[count],wenviron_strings,len * sizeof(MSVCRT_wchar_t));
 124           for (wptr = (MSVCRT_wchar_t*)&wblk[count]; *wptr; wptr += strlenW(wptr) + 1)
 125             {
 126               wblk[i++] = wptr;
 127             }
 128         }
 129       wblk[i] = NULL;
 130     }
 131   FreeEnvironmentStringsW(wenviron_strings);
 132   return wblk;
 133 }
 134
 135 typedef void (*_INITTERMFUN)(void);
 136
 137 /***********************************************************************
 138  *              __p___argc (MSVCRT.@)
 139  */
 140 int* __p___argc(void) { return &MSVCRT___argc; }
 141
 142 /***********************************************************************
 143  *              __p__commode (MSVCRT.@)
 144  */
 145 unsigned int* __p__commode(void) { return &MSVCRT__commode; }
 146
 147
 148 /***********************************************************************
 149  *              __p__pgmptr (MSVCRT.@)
 150  */
 151 char** __p__pgmptr(void) { return &MSVCRT__pgmptr; }
 152
 153 /***********************************************************************
 154  *              __p__wpgmptr (MSVCRT.@)
 155  */
 156 WCHAR** __p__wpgmptr(void) { return &MSVCRT__wpgmptr; }
 157
 158 /***********************************************************************
 159  *              __p__fmode (MSVCRT.@)
 160  */
 161 unsigned int* __p__fmode(void) { return &MSVCRT__fmode; }
 162
 163 /***********************************************************************
 164  *              __p__osver (MSVCRT.@)
 165  */
 166 unsigned int* __p__osver(void) { return &MSVCRT__osver; }
 167
 168 /***********************************************************************
 169  *              __p__winmajor (MSVCRT.@)
 170  */
 171 unsigned int* __p__winmajor(void) { return &MSVCRT__winmajor; }
 172
 173 /***********************************************************************
 174  *              __p__winminor (MSVCRT.@)
 175  */
 176 unsigned int* __p__winminor(void) { return &MSVCRT__winminor; }
 177
 178 /***********************************************************************
 179  *              __p__winver (MSVCRT.@)
 180  */
 181 unsigned int* __p__winver(void) { return &MSVCRT__winver; }
 182
 183 /*********************************************************************
 184  *              __p__acmdln (MSVCRT.@)
 185  */
 186 char** __p__acmdln(void) { return &MSVCRT__acmdln; }
 187
 188 /*********************************************************************
 189  *              __p__wcmdln (MSVCRT.@)
 190  */
 191 MSVCRT_wchar_t** __p__wcmdln(void) { return &MSVCRT__wcmdln; }
 192
 193 /*********************************************************************
 194  *              __p___argv (MSVCRT.@)
 195  */
 196 char*** __p___argv(void) { return &MSVCRT___argv; }
 197
 198 /*********************************************************************
 199  *              __p___wargv (MSVCRT.@)
 200  */
 201 MSVCRT_wchar_t*** __p___wargv(void) { return &MSVCRT___wargv; }
 202
 203 /*********************************************************************
 204  *              __p__environ (MSVCRT.@)
 205  */
 206 char*** __p__environ(void)
 207 {
 208   if (!_environ)
 209     _environ = msvcrt_SnapshotOfEnvironmentA(NULL);
 210   return &_environ;
 211 }
 212
 213 /*********************************************************************
 214  *              __p__wenviron (MSVCRT.@)
 215  */
 216 MSVCRT_wchar_t*** __p__wenviron(void)
 217 {
 218   if (!_wenviron)
 219     _wenviron = msvcrt_SnapshotOfEnvironmentW(NULL);
 220   return &_wenviron;
 221 }
 222
 223 /*********************************************************************
 224  *              __p___initenv (MSVCRT.@)
 225  */
 226 char*** __p___initenv(void) { return &MSVCRT___initenv; }
 227
 228 /*********************************************************************
 229  *              __p___winitenv (MSVCRT.@)
 230  */
 231 MSVCRT_wchar_t*** __p___winitenv(void) { return &MSVCRT___winitenv; }
 232
 233 /* INTERNAL: Create a wide string from an ascii string */
 234 static MSVCRT_wchar_t *wstrdupa(const char *str)
 235 {
 236   const size_t len = strlen(str) + 1 ;
 237   MSVCRT_wchar_t *wstr = MSVCRT_malloc(len* sizeof (MSVCRT_wchar_t));
 238   if (!wstr)
 239     return NULL;
 240    MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED,str,len,wstr,len);
 241   return wstr;
 242 }
 243
 244 /* INTERNAL: Since we can't rely on Winelib startup code calling w/getmainargs,
 245  * we initialise data values during DLL loading. When called by a native
 246  * program we simply return the data we've already initialised. This also means
 247  * you can call multiple times without leaking
 248  */
 249 void msvcrt_init_args(void)
 250 {
 251   DWORD version;
 252
 253   MSVCRT__acmdln = _strdup( GetCommandLineA() );
 254   MSVCRT__wcmdln = wstrdupa(MSVCRT__acmdln);
 255   MSVCRT___argc = __wine_main_argc;
 256   MSVCRT___argv = __wine_main_argv;
 257   MSVCRT___wargv = __wine_main_wargv;
 258
 259   TRACE("got %s, wide = %s argc=%d\n", debugstr_a(MSVCRT__acmdln),
 260         debugstr_w(MSVCRT__wcmdln),MSVCRT___argc);
 261
 262   version = GetVersion();
 263   MSVCRT__osver       = version >> 16;
 264   MSVCRT__winminor    = version & 0xFF;
 265   MSVCRT__winmajor    = (version>>8) & 0xFF;
 266   MSVCRT_baseversion = version >> 16;
 267   MSVCRT__winver     = ((version >> 8) & 0xFF) + ((version & 0xFF) << 8);
 268   MSVCRT_baseminor   = (version >> 16) & 0xFF;
 269   MSVCRT_basemajor   = (version >> 24) & 0xFF;
 270   MSVCRT_osversion   = version & 0xFFFF;
 271   MSVCRT_osminor     = version & 0xFF;
 272   MSVCRT_osmajor     = (version>>8) & 0xFF;
 273   MSVCRT__sys_nerr   = 43;
 274   MSVCRT__HUGE = HUGE_VAL;
 275   MSVCRT___setlc_active = 0;
 276   MSVCRT___unguarded_readlc_active = 0;
 277   MSVCRT__fmode = MSVCRT__O_TEXT;
 278
 279   MSVCRT___initenv= msvcrt_SnapshotOfEnvironmentA(NULL);
 280   MSVCRT___winitenv= msvcrt_SnapshotOfEnvironmentW(NULL);
 281
 282   MSVCRT__pgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH);
 283   if (MSVCRT__pgmptr)
 284   {
 285     if (!GetModuleFileNameA(0, MSVCRT__pgmptr, MAX_PATH))
 286       MSVCRT__pgmptr[0] = '\0';
 287     else
 288       MSVCRT__pgmptr[MAX_PATH - 1] = '\0';
 289   }
 290
 291   MSVCRT__wpgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR));
 292   if (MSVCRT__wpgmptr)
 293   {
 294     if (!GetModuleFileNameW(0, MSVCRT__wpgmptr, MAX_PATH))
 295       MSVCRT__wpgmptr[0] = '\0';
 296     else
 297       MSVCRT__wpgmptr[MAX_PATH - 1] = '\0';
 298   }
 299 }
 300
 301
 302 /* INTERNAL: free memory used by args */
 303 void msvcrt_free_args(void)
 304 {
 305   /* FIXME: more things to free */
 306   HeapFree(GetProcessHeap(), 0, MSVCRT___initenv);
 307   HeapFree(GetProcessHeap(), 0, MSVCRT___winitenv);
 308   HeapFree(GetProcessHeap(), 0, _environ);
 309   HeapFree(GetProcessHeap(), 0, _wenviron);
 310   HeapFree(GetProcessHeap(), 0, MSVCRT__pgmptr);
 311   HeapFree(GetProcessHeap(), 0, MSVCRT__wpgmptr);
 312 }
 313
 314 /*********************************************************************
 315  *              __getmainargs (MSVCRT.@)
 316  */
 317 void __getmainargs(int *argc, char** *argv, char** *envp,
 318                                   int expand_wildcards, int *new_mode)
 319 {
 320   TRACE("(%p,%p,%p,%d,%p).\n", argc, argv, envp, expand_wildcards, new_mode);
 321   *argc = MSVCRT___argc;
 322   *argv = MSVCRT___argv;
 323   *envp = MSVCRT___initenv;
 324   if (new_mode)
 325     MSVCRT__set_new_mode( *new_mode );
 326 }
 327
 328 /*********************************************************************
 329  *              __wgetmainargs (MSVCRT.@)
 330  */
 331 void __wgetmainargs(int *argc, MSVCRT_wchar_t** *wargv, MSVCRT_wchar_t** *wenvp,
 332                     int expand_wildcards, int *new_mode)
 333 {
 334   TRACE("(%p,%p,%p,%d,%p).\n", argc, wargv, wenvp, expand_wildcards, new_mode);
 335   *argc = MSVCRT___argc;
 336   *wargv = MSVCRT___wargv;
 337   *wenvp = MSVCRT___winitenv;
 338   if (new_mode)
 339     MSVCRT__set_new_mode( *new_mode );
 340 }
 341
 342 /*********************************************************************
 343  *              _initterm (MSVCRT.@)
 344  */
 345 unsigned int _initterm(_INITTERMFUN *start,_INITTERMFUN *end)
 346 {
 347   _INITTERMFUN* current = start;
 348
 349   TRACE("(%p,%p)\n",start,end);
 350   while (current<end)
 351   {
 352     if (*current)
 353     {
 354       TRACE("Call init function %p\n",*current);
 355       (**current)();
 356       TRACE("returned\n");
 357     }
 358     current++;
 359   }
 360   return 0;
 361 }
 362
 363 /*********************************************************************
 364  *              __set_app_type (MSVCRT.@)
 365  */
 366 void MSVCRT___set_app_type(int app_type)
 367 {
 368   TRACE("(%d) %s application\n", app_type, app_type == 2 ? "Gui" : "Console");
 369   MSVCRT_app_type = app_type;
 370 }