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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 = 0;
  33 unsigned int MSVCRT_basemajor = 0;/* FIXME: */
  34 unsigned int MSVCRT_baseminor = 0;/* FIXME: */
  35 unsigned int MSVCRT_baseversion = 0; /* FIXME: */
  36 unsigned int MSVCRT__commode = 0;
  37 unsigned int MSVCRT__fmode = 0;
  38 unsigned int MSVCRT_osmajor = 0;/* FIXME: */
  39 unsigned int MSVCRT_osminor = 0;/* FIXME: */
  40 unsigned int MSVCRT_osmode = 0;/* FIXME: */
  41 unsigned int MSVCRT__osver = 0;
  42 unsigned int MSVCRT__osplatform = 0;
  43 unsigned int MSVCRT_osversion = 0; /* FIXME: */
  44 unsigned int MSVCRT__winmajor = 0;
  45 unsigned int MSVCRT__winminor = 0;
  46 unsigned int MSVCRT__winver = 0;
  47 unsigned int MSVCRT___setlc_active = 0;
  48 unsigned int MSVCRT___unguarded_readlc_active = 0;
  49 double MSVCRT__HUGE = 0;
  50 char **MSVCRT___argv = NULL;
  51 MSVCRT_wchar_t **MSVCRT___wargv = NULL;
  52 char *MSVCRT__acmdln = NULL;
  53 MSVCRT_wchar_t *MSVCRT__wcmdln = NULL;
  54 char **MSVCRT__environ = NULL;
  55 MSVCRT_wchar_t **MSVCRT__wenviron = NULL;
  56 char **MSVCRT___initenv = NULL;
  57 MSVCRT_wchar_t **MSVCRT___winitenv = NULL;
  58 int MSVCRT_app_type = 0;
  59 char* MSVCRT__pgmptr = NULL;
  60 WCHAR* MSVCRT__wpgmptr = NULL;
  61
  62 /* Get a snapshot of the current environment
  63  * and construct the __p__environ array
  64  *
  65  * The pointer returned from GetEnvironmentStrings may get invalid when
  66  * some other module cause a reallocation of the env-variable block
  67  *
  68  * blk is an array of pointers to environment strings, ending with a NULL
  69  * and after that the actual copy of the environment strings, ending in a \0
  70  */
  71 char ** msvcrt_SnapshotOfEnvironmentA(char **blk)
  72 {
  73   char* environ_strings = GetEnvironmentStringsA();
  74   int count = 1, len = 1, i = 0; /* keep space for the trailing NULLS */
  75   char *ptr;
  76
  77   for (ptr = environ_strings; *ptr; ptr += strlen(ptr) + 1)
  78   {
  79     count++;
  80     len += strlen(ptr) + 1;
  81   }
  82   if (blk)
  83       blk = HeapReAlloc( GetProcessHeap(), 0, blk, count* sizeof(char*) + len );
  84   else
  85     blk = HeapAlloc(GetProcessHeap(), 0, count* sizeof(char*) + len );
  86
  87   if (blk)
  88     {
  89       if (count)
  90         {
  91           memcpy(&blk[count],environ_strings,len);
  92           for (ptr = (char*) &blk[count]; *ptr; ptr += strlen(ptr) + 1)
  93             {
  94               blk[i++] = ptr;
  95             }
  96         }
  97       blk[i] = NULL;
  98     }
  99   FreeEnvironmentStringsA(environ_strings);
 100   return blk;
 101 }
 102
 103 MSVCRT_wchar_t ** msvcrt_SnapshotOfEnvironmentW(MSVCRT_wchar_t **wblk)
 104 {
 105   MSVCRT_wchar_t* wenviron_strings = GetEnvironmentStringsW();
 106   int count = 1, len = 1, i = 0; /* keep space for the trailing NULLS */
 107   MSVCRT_wchar_t *wptr;
 108
 109   for (wptr = wenviron_strings; *wptr; wptr += strlenW(wptr) + 1)
 110   {
 111     count++;
 112     len += strlenW(wptr) + 1;
 113   }
 114   if (wblk)
 115       wblk = HeapReAlloc( GetProcessHeap(), 0, wblk, count* sizeof(MSVCRT_wchar_t*) + len * sizeof(MSVCRT_wchar_t));
 116   else
 117     wblk = HeapAlloc(GetProcessHeap(), 0, count* sizeof(MSVCRT_wchar_t*) + len * sizeof(MSVCRT_wchar_t));
 118   if (wblk)
 119     {
 120       if (count)
 121         {
 122           memcpy(&wblk[count],wenviron_strings,len * sizeof(MSVCRT_wchar_t));
 123           for (wptr = (MSVCRT_wchar_t*)&wblk[count]; *wptr; wptr += strlenW(wptr) + 1)
 124             {
 125               wblk[i++] = wptr;
 126             }
 127         }
 128       wblk[i] = NULL;
 129     }
 130   FreeEnvironmentStringsW(wenviron_strings);
 131   return wblk;
 132 }
 133
 134 typedef void (CDECL *_INITTERMFUN)(void);
 135 typedef int (CDECL *_INITTERM_E_FN)(void);
 136
 137 /***********************************************************************
 138  *              __p___argc (MSVCRT.@)
 139  */
 140 int* CDECL __p___argc(void) { return &MSVCRT___argc; }
 141
 142 /***********************************************************************
 143  *              __p__commode (MSVCRT.@)
 144  */
 145 unsigned int* CDECL __p__commode(void) { return &MSVCRT__commode; }
 146
 147
 148 /***********************************************************************
 149  *              __p__pgmptr (MSVCRT.@)
 150  */
 151 char** CDECL __p__pgmptr(void) { return &MSVCRT__pgmptr; }
 152
 153 /***********************************************************************
 154  *              __p__wpgmptr (MSVCRT.@)
 155  */
 156 WCHAR** CDECL __p__wpgmptr(void) { return &MSVCRT__wpgmptr; }
 157
 158 /***********************************************************************
 159  *              _get_pgmptr (MSVCRT.@)
 160  */
 161 int CDECL _get_pgmptr(char** p)
 162 {
 163   if (!MSVCRT_CHECK_PMT(p))
 164   {
 165     *MSVCRT__errno() = MSVCRT_EINVAL;
 166     return MSVCRT_EINVAL;
 167   }
 168
 169   *p = MSVCRT__pgmptr;
 170   return 0;
 171 }
 172
 173 /***********************************************************************
 174  *              _get_wpgmptr (MSVCRT.@)
 175  */
 176 int CDECL _get_wpgmptr(WCHAR** p)
 177 {
 178   if (!MSVCRT_CHECK_PMT(p))
 179   {
 180     *MSVCRT__errno() = MSVCRT_EINVAL;
 181     return MSVCRT_EINVAL;
 182   }
 183
 184   *p = MSVCRT__wpgmptr;
 185   return 0;
 186 }
 187
 188 /***********************************************************************
 189  *              __p__fmode (MSVCRT.@)
 190  */
 191 unsigned int* CDECL __p__fmode(void) { return &MSVCRT__fmode; }
 192
 193 /***********************************************************************
 194  *              __p__osver (MSVCRT.@)
 195  */
 196 unsigned int* CDECL __p__osver(void) { return &MSVCRT__osver; }
 197
 198 /***********************************************************************
 199  *              __p__winmajor (MSVCRT.@)
 200  */
 201 unsigned int* CDECL __p__winmajor(void) { return &MSVCRT__winmajor; }
 202
 203 /***********************************************************************
 204  *              __p__winminor (MSVCRT.@)
 205  */
 206 unsigned int* CDECL __p__winminor(void) { return &MSVCRT__winminor; }
 207
 208 /***********************************************************************
 209  *              __p__winver (MSVCRT.@)
 210  */
 211 unsigned int* CDECL __p__winver(void) { return &MSVCRT__winver; }
 212
 213 /*********************************************************************
 214  *              __p__acmdln (MSVCRT.@)
 215  */
 216 char** CDECL __p__acmdln(void) { return &MSVCRT__acmdln; }
 217
 218 /*********************************************************************
 219  *              __p__wcmdln (MSVCRT.@)
 220  */
 221 MSVCRT_wchar_t** CDECL __p__wcmdln(void) { return &MSVCRT__wcmdln; }
 222
 223 /*********************************************************************
 224  *              __p___argv (MSVCRT.@)
 225  */
 226 char*** CDECL __p___argv(void) { return &MSVCRT___argv; }
 227
 228 /*********************************************************************
 229  *              __p___wargv (MSVCRT.@)
 230  */
 231 MSVCRT_wchar_t*** CDECL __p___wargv(void) { return &MSVCRT___wargv; }
 232
 233 /*********************************************************************
 234  *              __p__environ (MSVCRT.@)
 235  */
 236 char*** CDECL MSVCRT___p__environ(void)
 237 {
 238   return &MSVCRT__environ;
 239 }
 240
 241 /*********************************************************************
 242  *              __p__wenviron (MSVCRT.@)
 243  */
 244 MSVCRT_wchar_t*** CDECL MSVCRT___p__wenviron(void)
 245 {
 246   return &MSVCRT__wenviron;
 247 }
 248
 249 /*********************************************************************
 250  *              __p___initenv (MSVCRT.@)
 251  */
 252 char*** CDECL __p___initenv(void) { return &MSVCRT___initenv; }
 253
 254 /*********************************************************************
 255  *              __p___winitenv (MSVCRT.@)
 256  */
 257 MSVCRT_wchar_t*** CDECL __p___winitenv(void) { return &MSVCRT___winitenv; }
 258
 259 /*********************************************************************
 260  *              _get_osplatform (MSVCRT.@)
 261  */
 262 int CDECL MSVCRT__get_osplatform(int *pValue)
 263 {
 264     if (!MSVCRT_CHECK_PMT(pValue != NULL)) {
 265         *MSVCRT__errno() = MSVCRT_EINVAL;
 266         return MSVCRT_EINVAL;
 267     }
 268
 269     *pValue = MSVCRT__osplatform;
 270     return 0;
 271 }
 272
 273 /* INTERNAL: Create a wide string from an ascii string */
 274 MSVCRT_wchar_t *msvcrt_wstrdupa(const char *str)
 275 {
 276   const unsigned int len = strlen(str) + 1 ;
 277   MSVCRT_wchar_t *wstr = MSVCRT_malloc(len* sizeof (MSVCRT_wchar_t));
 278   if (!wstr)
 279     return NULL;
 280    MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED,str,len,wstr,len);
 281   return wstr;
 282 }
 283
 284 /*********************************************************************
 285  *              ___unguarded_readlc_active_add_func (MSVCRT.@)
 286  */
 287 unsigned int * CDECL MSVCRT____unguarded_readlc_active_add_func(void)
 288 {
 289   return &MSVCRT___unguarded_readlc_active;
 290 }
 291
 292 /*********************************************************************
 293  *              ___setlc_active_func (MSVCRT.@)
 294  */
 295 unsigned int CDECL MSVCRT____setlc_active_func(void)
 296 {
 297   return MSVCRT___setlc_active;
 298 }
 299
 300 /* INTERNAL: Since we can't rely on Winelib startup code calling w/getmainargs,
 301  * we initialise data values during DLL loading. When called by a native
 302  * program we simply return the data we've already initialised. This also means
 303  * you can call multiple times without leaking
 304  */
 305 void msvcrt_init_args(void)
 306 {
 307   OSVERSIONINFOW osvi;
 308
 309   MSVCRT__acmdln = MSVCRT__strdup( GetCommandLineA() );
 310   MSVCRT__wcmdln = msvcrt_wstrdupa(MSVCRT__acmdln);
 311   MSVCRT___argc = __wine_main_argc;
 312   MSVCRT___argv = __wine_main_argv;
 313   MSVCRT___wargv = __wine_main_wargv;
 314
 315   TRACE("got %s, wide = %s argc=%d\n", debugstr_a(MSVCRT__acmdln),
 316         debugstr_w(MSVCRT__wcmdln),MSVCRT___argc);
 317
 318   osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
 319   GetVersionExW( &osvi );
 320   MSVCRT__winver     = (osvi.dwMajorVersion << 8) | osvi.dwMinorVersion;
 321   MSVCRT__winmajor   = osvi.dwMajorVersion;
 322   MSVCRT__winminor   = osvi.dwMinorVersion;
 323   MSVCRT__osver      = osvi.dwBuildNumber;
 324   MSVCRT__osplatform = osvi.dwPlatformId;
 325   MSVCRT_osversion   = MSVCRT__winver;
 326   MSVCRT_osmajor     = MSVCRT__winmajor;
 327   MSVCRT_osminor     = MSVCRT__winminor;
 328   MSVCRT_baseversion = MSVCRT__osver;
 329   MSVCRT_baseminor   = MSVCRT_baseversion & 0xFF;
 330   MSVCRT_basemajor   = (MSVCRT_baseversion >> 8) & 0xFF;
 331   TRACE( "winver %08x winmajor %08x winminor %08x osver%08x baseversion %08x basemajor %08x baseminor %08x\n",
 332           MSVCRT__winver, MSVCRT__winmajor, MSVCRT__winminor, MSVCRT__osver, MSVCRT_baseversion,
 333           MSVCRT_basemajor, MSVCRT_baseminor);
 334   TRACE( "osversion %08x osmajor %08x osminor %08x\n", MSVCRT_osversion, MSVCRT_osmajor, MSVCRT_osminor);
 335
 336   MSVCRT__HUGE = HUGE_VAL;
 337   MSVCRT___setlc_active = 0;
 338   MSVCRT___unguarded_readlc_active = 0;
 339   MSVCRT__fmode = MSVCRT__O_TEXT;
 340
 341   MSVCRT__environ = msvcrt_SnapshotOfEnvironmentA(NULL);
 342   MSVCRT___initenv = msvcrt_SnapshotOfEnvironmentA(NULL);
 343   MSVCRT___winitenv = msvcrt_SnapshotOfEnvironmentW(NULL);
 344
 345   MSVCRT__pgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH);
 346   if (MSVCRT__pgmptr)
 347   {
 348     if (!GetModuleFileNameA(0, MSVCRT__pgmptr, MAX_PATH))
 349       MSVCRT__pgmptr[0] = '\0';
 350     else
 351       MSVCRT__pgmptr[MAX_PATH - 1] = '\0';
 352   }
 353
 354   MSVCRT__wpgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR));
 355   if (MSVCRT__wpgmptr)
 356   {
 357     if (!GetModuleFileNameW(0, MSVCRT__wpgmptr, MAX_PATH))
 358       MSVCRT__wpgmptr[0] = '\0';
 359     else
 360       MSVCRT__wpgmptr[MAX_PATH - 1] = '\0';
 361   }
 362 }
 363
 364
 365 /* INTERNAL: free memory used by args */
 366 void msvcrt_free_args(void)
 367 {
 368   /* FIXME: more things to free */
 369   HeapFree(GetProcessHeap(), 0, MSVCRT___initenv);
 370   HeapFree(GetProcessHeap(), 0, MSVCRT___winitenv);
 371   HeapFree(GetProcessHeap(), 0, MSVCRT__environ);
 372   HeapFree(GetProcessHeap(), 0, MSVCRT__wenviron);
 373   HeapFree(GetProcessHeap(), 0, MSVCRT__pgmptr);
 374   HeapFree(GetProcessHeap(), 0, MSVCRT__wpgmptr);
 375 }
 376
 377 /*********************************************************************
 378  *              __getmainargs (MSVCRT.@)
 379  */
 380 void CDECL __getmainargs(int *argc, char** *argv, char** *envp,
 381                          int expand_wildcards, int *new_mode)
 382 {
 383   TRACE("(%p,%p,%p,%d,%p).\n", argc, argv, envp, expand_wildcards, new_mode);
 384   *argc = MSVCRT___argc;
 385   *argv = MSVCRT___argv;
 386   *envp = MSVCRT___initenv;
 387   if (new_mode)
 388     MSVCRT__set_new_mode( *new_mode );
 389 }
 390
 391 /*********************************************************************
 392  *              __wgetmainargs (MSVCRT.@)
 393  */
 394 void CDECL __wgetmainargs(int *argc, MSVCRT_wchar_t** *wargv, MSVCRT_wchar_t** *wenvp,
 395                           int expand_wildcards, int *new_mode)
 396 {
 397   TRACE("(%p,%p,%p,%d,%p).\n", argc, wargv, wenvp, expand_wildcards, new_mode);
 398
 399   /* Initialize the _wenviron array if it's not already created. */
 400   if (!MSVCRT__wenviron)
 401     MSVCRT__wenviron = msvcrt_SnapshotOfEnvironmentW(NULL);
 402   *argc = MSVCRT___argc;
 403   *wargv = MSVCRT___wargv;
 404   *wenvp = MSVCRT___winitenv;
 405   if (new_mode)
 406     MSVCRT__set_new_mode( *new_mode );
 407 }
 408
 409 /*********************************************************************
 410  *              _initterm (MSVCRT.@)
 411  */
 412 void CDECL _initterm(_INITTERMFUN *start,_INITTERMFUN *end)
 413 {
 414   _INITTERMFUN* current = start;
 415
 416   TRACE("(%p,%p)\n",start,end);
 417   while (current<end)
 418   {
 419     if (*current)
 420     {
 421       TRACE("Call init function %p\n",*current);
 422       (**current)();
 423       TRACE("returned\n");
 424     }
 425     current++;
 426   }
 427 }
 428
 429 /*********************************************************************
 430  *  _initterm_e (MSVCRT.@)
 431  *
 432  * call an array of application initialization functions and report the return value
 433  */
 434 int CDECL _initterm_e(_INITTERM_E_FN *table, _INITTERM_E_FN *end)
 435 {
 436     int res = 0;
 437
 438     TRACE("(%p, %p)\n", table, end);
 439
 440     while (!res && table < end) {
 441         if (*table) {
 442             TRACE("calling %p\n", **table);
 443             res = (**table)();
 444             if (res)
 445                 TRACE("function %p failed: 0x%x\n", *table, res);
 446
 447         }
 448         table++;
 449     }
 450     return res;
 451 }
 452
 453 /*********************************************************************
 454  *              __set_app_type (MSVCRT.@)
 455  */
 456 void CDECL MSVCRT___set_app_type(int app_type)
 457 {
 458   TRACE("(%d) %s application\n", app_type, app_type == 2 ? "Gui" : "Console");
 459   MSVCRT_app_type = app_type;
 460 }