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)) return MSVCRT_EINVAL;
 164
 165   *p = MSVCRT__pgmptr;
 166   return 0;
 167 }
 168
 169 /***********************************************************************
 170  *              _get_wpgmptr (MSVCRT.@)
 171  */
 172 int CDECL _get_wpgmptr(WCHAR** p)
 173 {
 174   if (!MSVCRT_CHECK_PMT(p)) return MSVCRT_EINVAL;
 175   *p = MSVCRT__wpgmptr;
 176   return 0;
 177 }
 178
 179 /***********************************************************************
 180  *              __p__fmode (MSVCRT.@)
 181  */
 182 unsigned int* CDECL __p__fmode(void) { return &MSVCRT__fmode; }
 183
 184 /***********************************************************************
 185  *              __p__osver (MSVCRT.@)
 186  */
 187 unsigned int* CDECL __p__osver(void) { return &MSVCRT__osver; }
 188
 189 /***********************************************************************
 190  *              __p__winmajor (MSVCRT.@)
 191  */
 192 unsigned int* CDECL __p__winmajor(void) { return &MSVCRT__winmajor; }
 193
 194 /***********************************************************************
 195  *              __p__winminor (MSVCRT.@)
 196  */
 197 unsigned int* CDECL __p__winminor(void) { return &MSVCRT__winminor; }
 198
 199 /***********************************************************************
 200  *              __p__winver (MSVCRT.@)
 201  */
 202 unsigned int* CDECL __p__winver(void) { return &MSVCRT__winver; }
 203
 204 /*********************************************************************
 205  *              __p__acmdln (MSVCRT.@)
 206  */
 207 char** CDECL __p__acmdln(void) { return &MSVCRT__acmdln; }
 208
 209 /*********************************************************************
 210  *              __p__wcmdln (MSVCRT.@)
 211  */
 212 MSVCRT_wchar_t** CDECL __p__wcmdln(void) { return &MSVCRT__wcmdln; }
 213
 214 /*********************************************************************
 215  *              __p___argv (MSVCRT.@)
 216  */
 217 char*** CDECL __p___argv(void) { return &MSVCRT___argv; }
 218
 219 /*********************************************************************
 220  *              __p___wargv (MSVCRT.@)
 221  */
 222 MSVCRT_wchar_t*** CDECL __p___wargv(void) { return &MSVCRT___wargv; }
 223
 224 /*********************************************************************
 225  *              __p__environ (MSVCRT.@)
 226  */
 227 char*** CDECL MSVCRT___p__environ(void)
 228 {
 229   return &MSVCRT__environ;
 230 }
 231
 232 /*********************************************************************
 233  *              __p__wenviron (MSVCRT.@)
 234  */
 235 MSVCRT_wchar_t*** CDECL MSVCRT___p__wenviron(void)
 236 {
 237   return &MSVCRT__wenviron;
 238 }
 239
 240 /*********************************************************************
 241  *              __p___initenv (MSVCRT.@)
 242  */
 243 char*** CDECL __p___initenv(void) { return &MSVCRT___initenv; }
 244
 245 /*********************************************************************
 246  *              __p___winitenv (MSVCRT.@)
 247  */
 248 MSVCRT_wchar_t*** CDECL __p___winitenv(void) { return &MSVCRT___winitenv; }
 249
 250 /*********************************************************************
 251  *              _get_osplatform (MSVCRT.@)
 252  */
 253 int CDECL MSVCRT__get_osplatform(int *pValue)
 254 {
 255     if (!MSVCRT_CHECK_PMT(pValue != NULL)) return MSVCRT_EINVAL;
 256     *pValue = MSVCRT__osplatform;
 257     return 0;
 258 }
 259
 260 /* INTERNAL: Create a wide string from an ascii string */
 261 MSVCRT_wchar_t *msvcrt_wstrdupa(const char *str)
 262 {
 263   const unsigned int len = strlen(str) + 1 ;
 264   MSVCRT_wchar_t *wstr = MSVCRT_malloc(len* sizeof (MSVCRT_wchar_t));
 265   if (!wstr)
 266     return NULL;
 267    MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED,str,len,wstr,len);
 268   return wstr;
 269 }
 270
 271 /*********************************************************************
 272  *              ___unguarded_readlc_active_add_func (MSVCRT.@)
 273  */
 274 unsigned int * CDECL MSVCRT____unguarded_readlc_active_add_func(void)
 275 {
 276   return &MSVCRT___unguarded_readlc_active;
 277 }
 278
 279 /*********************************************************************
 280  *              ___setlc_active_func (MSVCRT.@)
 281  */
 282 unsigned int CDECL MSVCRT____setlc_active_func(void)
 283 {
 284   return MSVCRT___setlc_active;
 285 }
 286
 287 /* INTERNAL: Since we can't rely on Winelib startup code calling w/getmainargs,
 288  * we initialise data values during DLL loading. When called by a native
 289  * program we simply return the data we've already initialised. This also means
 290  * you can call multiple times without leaking
 291  */
 292 void msvcrt_init_args(void)
 293 {
 294   OSVERSIONINFOW osvi;
 295
 296   MSVCRT__acmdln = MSVCRT__strdup( GetCommandLineA() );
 297   MSVCRT__wcmdln = msvcrt_wstrdupa(MSVCRT__acmdln);
 298   MSVCRT___argc = __wine_main_argc;
 299   MSVCRT___argv = __wine_main_argv;
 300   MSVCRT___wargv = __wine_main_wargv;
 301
 302   TRACE("got %s, wide = %s argc=%d\n", debugstr_a(MSVCRT__acmdln),
 303         debugstr_w(MSVCRT__wcmdln),MSVCRT___argc);
 304
 305   osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
 306   GetVersionExW( &osvi );
 307   MSVCRT__winver     = (osvi.dwMajorVersion << 8) | osvi.dwMinorVersion;
 308   MSVCRT__winmajor   = osvi.dwMajorVersion;
 309   MSVCRT__winminor   = osvi.dwMinorVersion;
 310   MSVCRT__osver      = osvi.dwBuildNumber;
 311   MSVCRT__osplatform = osvi.dwPlatformId;
 312   MSVCRT_osversion   = MSVCRT__winver;
 313   MSVCRT_osmajor     = MSVCRT__winmajor;
 314   MSVCRT_osminor     = MSVCRT__winminor;
 315   MSVCRT_baseversion = MSVCRT__osver;
 316   MSVCRT_baseminor   = MSVCRT_baseversion & 0xFF;
 317   MSVCRT_basemajor   = (MSVCRT_baseversion >> 8) & 0xFF;
 318   TRACE( "winver %08x winmajor %08x winminor %08x osver%08x baseversion %08x basemajor %08x baseminor %08x\n",
 319           MSVCRT__winver, MSVCRT__winmajor, MSVCRT__winminor, MSVCRT__osver, MSVCRT_baseversion,
 320           MSVCRT_basemajor, MSVCRT_baseminor);
 321   TRACE( "osversion %08x osmajor %08x osminor %08x\n", MSVCRT_osversion, MSVCRT_osmajor, MSVCRT_osminor);
 322
 323   MSVCRT__HUGE = HUGE_VAL;
 324   MSVCRT___setlc_active = 0;
 325   MSVCRT___unguarded_readlc_active = 0;
 326   MSVCRT__fmode = MSVCRT__O_TEXT;
 327
 328   MSVCRT__environ = msvcrt_SnapshotOfEnvironmentA(NULL);
 329   MSVCRT___initenv = msvcrt_SnapshotOfEnvironmentA(NULL);
 330   MSVCRT___winitenv = msvcrt_SnapshotOfEnvironmentW(NULL);
 331
 332   MSVCRT__pgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH);
 333   if (MSVCRT__pgmptr)
 334   {
 335     if (!GetModuleFileNameA(0, MSVCRT__pgmptr, MAX_PATH))
 336       MSVCRT__pgmptr[0] = '\0';
 337     else
 338       MSVCRT__pgmptr[MAX_PATH - 1] = '\0';
 339   }
 340
 341   MSVCRT__wpgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR));
 342   if (MSVCRT__wpgmptr)
 343   {
 344     if (!GetModuleFileNameW(0, MSVCRT__wpgmptr, MAX_PATH))
 345       MSVCRT__wpgmptr[0] = '\0';
 346     else
 347       MSVCRT__wpgmptr[MAX_PATH - 1] = '\0';
 348   }
 349 }
 350
 351
 352 /* INTERNAL: free memory used by args */
 353 void msvcrt_free_args(void)
 354 {
 355   /* FIXME: more things to free */
 356   HeapFree(GetProcessHeap(), 0, MSVCRT___initenv);
 357   HeapFree(GetProcessHeap(), 0, MSVCRT___winitenv);
 358   HeapFree(GetProcessHeap(), 0, MSVCRT__environ);
 359   HeapFree(GetProcessHeap(), 0, MSVCRT__wenviron);
 360   HeapFree(GetProcessHeap(), 0, MSVCRT__pgmptr);
 361   HeapFree(GetProcessHeap(), 0, MSVCRT__wpgmptr);
 362 }
 363
 364 /*********************************************************************
 365  *              __getmainargs (MSVCRT.@)
 366  */
 367 void CDECL __getmainargs(int *argc, char** *argv, char** *envp,
 368                          int expand_wildcards, int *new_mode)
 369 {
 370   TRACE("(%p,%p,%p,%d,%p).\n", argc, argv, envp, expand_wildcards, new_mode);
 371   *argc = MSVCRT___argc;
 372   *argv = MSVCRT___argv;
 373   *envp = MSVCRT___initenv;
 374   if (new_mode)
 375     MSVCRT__set_new_mode( *new_mode );
 376 }
 377
 378 /*********************************************************************
 379  *              __wgetmainargs (MSVCRT.@)
 380  */
 381 void CDECL __wgetmainargs(int *argc, MSVCRT_wchar_t** *wargv, MSVCRT_wchar_t** *wenvp,
 382                           int expand_wildcards, int *new_mode)
 383 {
 384   TRACE("(%p,%p,%p,%d,%p).\n", argc, wargv, wenvp, expand_wildcards, new_mode);
 385
 386   /* Initialize the _wenviron array if it's not already created. */
 387   if (!MSVCRT__wenviron)
 388     MSVCRT__wenviron = msvcrt_SnapshotOfEnvironmentW(NULL);
 389   *argc = MSVCRT___argc;
 390   *wargv = MSVCRT___wargv;
 391   *wenvp = MSVCRT___winitenv;
 392   if (new_mode)
 393     MSVCRT__set_new_mode( *new_mode );
 394 }
 395
 396 /*********************************************************************
 397  *              _initterm (MSVCRT.@)
 398  */
 399 void CDECL _initterm(_INITTERMFUN *start,_INITTERMFUN *end)
 400 {
 401   _INITTERMFUN* current = start;
 402
 403   TRACE("(%p,%p)\n",start,end);
 404   while (current<end)
 405   {
 406     if (*current)
 407     {
 408       TRACE("Call init function %p\n",*current);
 409       (**current)();
 410       TRACE("returned\n");
 411     }
 412     current++;
 413   }
 414 }
 415
 416 /*********************************************************************
 417  *  _initterm_e (MSVCRT.@)
 418  *
 419  * call an array of application initialization functions and report the return value
 420  */
 421 int CDECL _initterm_e(_INITTERM_E_FN *table, _INITTERM_E_FN *end)
 422 {
 423     int res = 0;
 424
 425     TRACE("(%p, %p)\n", table, end);
 426
 427     while (!res && table < end) {
 428         if (*table) {
 429             TRACE("calling %p\n", **table);
 430             res = (**table)();
 431             if (res)
 432                 TRACE("function %p failed: 0x%x\n", *table, res);
 433
 434         }
 435         table++;
 436     }
 437     return res;
 438 }
 439
 440 /*********************************************************************
 441  *              __set_app_type (MSVCRT.@)
 442  */
 443 void CDECL MSVCRT___set_app_type(int app_type)
 444 {
 445   TRACE("(%d) %s application\n", app_type, app_type == 2 ? "Gui" : "Console");
 446   MSVCRT_app_type = app_type;
 447 }