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
 136 /***********************************************************************
 137  *              __p___argc (MSVCRT.@)
 138  */
 139 int* CDECL __p___argc(void) { return &MSVCRT___argc; }
 140
 141 /***********************************************************************
 142  *              __p__commode (MSVCRT.@)
 143  */
 144 unsigned int* CDECL __p__commode(void) { return &MSVCRT__commode; }
 145
 146
 147 /***********************************************************************
 148  *              __p__pgmptr (MSVCRT.@)
 149  */
 150 char** CDECL __p__pgmptr(void) { return &MSVCRT__pgmptr; }
 151
 152 /***********************************************************************
 153  *              __p__wpgmptr (MSVCRT.@)
 154  */
 155 WCHAR** CDECL __p__wpgmptr(void) { return &MSVCRT__wpgmptr; }
 156
 157 /***********************************************************************
 158  *              __p__fmode (MSVCRT.@)
 159  */
 160 unsigned int* CDECL __p__fmode(void) { return &MSVCRT__fmode; }
 161
 162 /***********************************************************************
 163  *              __p__osver (MSVCRT.@)
 164  */
 165 unsigned int* CDECL __p__osver(void) { return &MSVCRT__osver; }
 166
 167 /***********************************************************************
 168  *              __p__winmajor (MSVCRT.@)
 169  */
 170 unsigned int* CDECL __p__winmajor(void) { return &MSVCRT__winmajor; }
 171
 172 /***********************************************************************
 173  *              __p__winminor (MSVCRT.@)
 174  */
 175 unsigned int* CDECL __p__winminor(void) { return &MSVCRT__winminor; }
 176
 177 /***********************************************************************
 178  *              __p__winver (MSVCRT.@)
 179  */
 180 unsigned int* CDECL __p__winver(void) { return &MSVCRT__winver; }
 181
 182 /*********************************************************************
 183  *              __p__acmdln (MSVCRT.@)
 184  */
 185 char** CDECL __p__acmdln(void) { return &MSVCRT__acmdln; }
 186
 187 /*********************************************************************
 188  *              __p__wcmdln (MSVCRT.@)
 189  */
 190 MSVCRT_wchar_t** CDECL __p__wcmdln(void) { return &MSVCRT__wcmdln; }
 191
 192 /*********************************************************************
 193  *              __p___argv (MSVCRT.@)
 194  */
 195 char*** CDECL __p___argv(void) { return &MSVCRT___argv; }
 196
 197 /*********************************************************************
 198  *              __p___wargv (MSVCRT.@)
 199  */
 200 MSVCRT_wchar_t*** CDECL __p___wargv(void) { return &MSVCRT___wargv; }
 201
 202 /*********************************************************************
 203  *              __p__environ (MSVCRT.@)
 204  */
 205 char*** CDECL __p__environ(void)
 206 {
 207   return &MSVCRT__environ;
 208 }
 209
 210 /*********************************************************************
 211  *              __p__wenviron (MSVCRT.@)
 212  */
 213 MSVCRT_wchar_t*** CDECL __p__wenviron(void)
 214 {
 215   return &MSVCRT__wenviron;
 216 }
 217
 218 /*********************************************************************
 219  *              __p___initenv (MSVCRT.@)
 220  */
 221 char*** CDECL __p___initenv(void) { return &MSVCRT___initenv; }
 222
 223 /*********************************************************************
 224  *              __p___winitenv (MSVCRT.@)
 225  */
 226 MSVCRT_wchar_t*** CDECL __p___winitenv(void) { return &MSVCRT___winitenv; }
 227
 228 /*********************************************************************
 229  *              _get_osplatform (MSVCRT.@)
 230  */
 231 int CDECL MSVCRT__get_osplatform(int *pValue)
 232 {
 233     if (!MSVCRT_CHECK_PMT(pValue != NULL)) {
 234         *MSVCRT__errno() = MSVCRT_EINVAL;
 235         return MSVCRT_EINVAL;
 236     }
 237
 238     *pValue = MSVCRT__osplatform;
 239     return 0;
 240 }
 241
 242 /* INTERNAL: Create a wide string from an ascii string */
 243 MSVCRT_wchar_t *msvcrt_wstrdupa(const char *str)
 244 {
 245   const unsigned int len = strlen(str) + 1 ;
 246   MSVCRT_wchar_t *wstr = MSVCRT_malloc(len* sizeof (MSVCRT_wchar_t));
 247   if (!wstr)
 248     return NULL;
 249    MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED,str,len,wstr,len);
 250   return wstr;
 251 }
 252
 253 /*********************************************************************
 254  *              ___unguarded_readlc_active_add_func (MSVCRT.@)
 255  */
 256 unsigned int * CDECL MSVCRT____unguarded_readlc_active_add_func(void)
 257 {
 258   return &MSVCRT___unguarded_readlc_active;
 259 }
 260
 261 /*********************************************************************
 262  *              ___setlc_active_func (MSVCRT.@)
 263  */
 264 unsigned int CDECL MSVCRT____setlc_active_func(void)
 265 {
 266   return MSVCRT___setlc_active;
 267 }
 268
 269 /* INTERNAL: Since we can't rely on Winelib startup code calling w/getmainargs,
 270  * we initialise data values during DLL loading. When called by a native
 271  * program we simply return the data we've already initialised. This also means
 272  * you can call multiple times without leaking
 273  */
 274 void msvcrt_init_args(void)
 275 {
 276   OSVERSIONINFOW osvi;
 277
 278   MSVCRT__acmdln = _strdup( GetCommandLineA() );
 279   MSVCRT__wcmdln = msvcrt_wstrdupa(MSVCRT__acmdln);
 280   MSVCRT___argc = __wine_main_argc;
 281   MSVCRT___argv = __wine_main_argv;
 282   MSVCRT___wargv = __wine_main_wargv;
 283
 284   TRACE("got %s, wide = %s argc=%d\n", debugstr_a(MSVCRT__acmdln),
 285         debugstr_w(MSVCRT__wcmdln),MSVCRT___argc);
 286
 287   osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
 288   GetVersionExW( &osvi );
 289   MSVCRT__winver     = (osvi.dwMajorVersion << 8) | osvi.dwMinorVersion;
 290   MSVCRT__winmajor   = osvi.dwMajorVersion;
 291   MSVCRT__winminor   = osvi.dwMinorVersion;
 292   MSVCRT__osver      = osvi.dwBuildNumber;
 293   MSVCRT__osplatform = osvi.dwPlatformId;
 294   MSVCRT_osversion   = MSVCRT__winver;
 295   MSVCRT_osmajor     = MSVCRT__winmajor;
 296   MSVCRT_osminor     = MSVCRT__winminor;
 297   MSVCRT_baseversion = MSVCRT__osver;
 298   MSVCRT_baseminor   = MSVCRT_baseversion & 0xFF;
 299   MSVCRT_basemajor   = (MSVCRT_baseversion >> 8) & 0xFF;
 300   TRACE( "winver %08x winmajor %08x winminor %08x osver%08x baseversion %08x basemajor %08x baseminor %08x\n",
 301           MSVCRT__winver, MSVCRT__winmajor, MSVCRT__winminor, MSVCRT__osver, MSVCRT_baseversion,
 302           MSVCRT_basemajor, MSVCRT_baseminor);
 303   TRACE( "osversion %08x osmajor %08x osminor %08x\n", MSVCRT_osversion, MSVCRT_osmajor, MSVCRT_osminor);
 304
 305   MSVCRT__HUGE = HUGE_VAL;
 306   MSVCRT___setlc_active = 0;
 307   MSVCRT___unguarded_readlc_active = 0;
 308   MSVCRT__fmode = MSVCRT__O_TEXT;
 309
 310   MSVCRT__environ = msvcrt_SnapshotOfEnvironmentA(NULL);
 311   MSVCRT___initenv = msvcrt_SnapshotOfEnvironmentA(NULL);
 312   MSVCRT___winitenv = msvcrt_SnapshotOfEnvironmentW(NULL);
 313
 314   MSVCRT__pgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH);
 315   if (MSVCRT__pgmptr)
 316   {
 317     if (!GetModuleFileNameA(0, MSVCRT__pgmptr, MAX_PATH))
 318       MSVCRT__pgmptr[0] = '\0';
 319     else
 320       MSVCRT__pgmptr[MAX_PATH - 1] = '\0';
 321   }
 322
 323   MSVCRT__wpgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR));
 324   if (MSVCRT__wpgmptr)
 325   {
 326     if (!GetModuleFileNameW(0, MSVCRT__wpgmptr, MAX_PATH))
 327       MSVCRT__wpgmptr[0] = '\0';
 328     else
 329       MSVCRT__wpgmptr[MAX_PATH - 1] = '\0';
 330   }
 331 }
 332
 333
 334 /* INTERNAL: free memory used by args */
 335 void msvcrt_free_args(void)
 336 {
 337   /* FIXME: more things to free */
 338   HeapFree(GetProcessHeap(), 0, MSVCRT___initenv);
 339   HeapFree(GetProcessHeap(), 0, MSVCRT___winitenv);
 340   HeapFree(GetProcessHeap(), 0, MSVCRT__environ);
 341   HeapFree(GetProcessHeap(), 0, MSVCRT__wenviron);
 342   HeapFree(GetProcessHeap(), 0, MSVCRT__pgmptr);
 343   HeapFree(GetProcessHeap(), 0, MSVCRT__wpgmptr);
 344 }
 345
 346 /*********************************************************************
 347  *              __getmainargs (MSVCRT.@)
 348  */
 349 void CDECL __getmainargs(int *argc, char** *argv, char** *envp,
 350                          int expand_wildcards, int *new_mode)
 351 {
 352   TRACE("(%p,%p,%p,%d,%p).\n", argc, argv, envp, expand_wildcards, new_mode);
 353   *argc = MSVCRT___argc;
 354   *argv = MSVCRT___argv;
 355   *envp = MSVCRT___initenv;
 356   if (new_mode)
 357     MSVCRT__set_new_mode( *new_mode );
 358 }
 359
 360 /*********************************************************************
 361  *              __wgetmainargs (MSVCRT.@)
 362  */
 363 void CDECL __wgetmainargs(int *argc, MSVCRT_wchar_t** *wargv, MSVCRT_wchar_t** *wenvp,
 364                           int expand_wildcards, int *new_mode)
 365 {
 366   TRACE("(%p,%p,%p,%d,%p).\n", argc, wargv, wenvp, expand_wildcards, new_mode);
 367
 368   /* Initialize the _wenviron array if it's not already created. */
 369   if (!MSVCRT__wenviron)
 370     MSVCRT__wenviron = msvcrt_SnapshotOfEnvironmentW(NULL);
 371   *argc = MSVCRT___argc;
 372   *wargv = MSVCRT___wargv;
 373   *wenvp = MSVCRT___winitenv;
 374   if (new_mode)
 375     MSVCRT__set_new_mode( *new_mode );
 376 }
 377
 378 /*********************************************************************
 379  *              _initterm (MSVCRT.@)
 380  */
 381 void CDECL _initterm(_INITTERMFUN *start,_INITTERMFUN *end)
 382 {
 383   _INITTERMFUN* current = start;
 384
 385   TRACE("(%p,%p)\n",start,end);
 386   while (current<end)
 387   {
 388     if (*current)
 389     {
 390       TRACE("Call init function %p\n",*current);
 391       (**current)();
 392       TRACE("returned\n");
 393     }
 394     current++;
 395   }
 396 }
 397
 398 /*********************************************************************
 399  *              __set_app_type (MSVCRT.@)
 400  */
 401 void CDECL MSVCRT___set_app_type(int app_type)
 402 {
 403   TRACE("(%d) %s application\n", app_type, app_type == 2 ? "Gui" : "Console");
 404   MSVCRT_app_type = app_type;
 405 }