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 unsigned 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_timezone;
  60 int MSVCRT_app_type;
  61 char* MSVCRT__pgmptr = 0;
  62 WCHAR* MSVCRT__wpgmptr = 0;
  63
  64 /* Get a snapshot of the current environment
  65  * and construct the __p__environ array
  66  *
  67  * The pointer returned from GetEnvironmentStrings may get invalid when
  68  * some other module cause a reallocation of the env-variable block
  69  *
  70  * blk is an array of pointers to environment strings, ending with a NULL
  71  * and after that the actual copy of the environment strings, ending in a \0
  72  */
  73 char ** msvcrt_SnapshotOfEnvironmentA(char **blk)
  74 {
  75   char* environ_strings = GetEnvironmentStringsA();
  76   int count = 1, len = 1, i = 0; /* keep space for the trailing NULLS */
  77   char *ptr;
  78
  79   for (ptr = environ_strings; *ptr; ptr += strlen(ptr) + 1)
  80   {
  81     count++;
  82     len += strlen(ptr) + 1;
  83   }
  84   if (blk)
  85       blk = HeapReAlloc( GetProcessHeap(), 0, blk, count* sizeof(char*) + len );
  86   else
  87     blk = HeapAlloc(GetProcessHeap(), 0, count* sizeof(char*) + len );
  88
  89   if (blk)
  90     {
  91       if (count)
  92         {
  93           memcpy(&blk[count],environ_strings,len);
  94           for (ptr = (char*) &blk[count]; *ptr; ptr += strlen(ptr) + 1)
  95             {
  96               blk[i++] = ptr;
  97             }
  98         }
  99       blk[i] = NULL;
 100     }
 101   FreeEnvironmentStringsA(environ_strings);
 102   return blk;
 103 }
 104
 105 MSVCRT_wchar_t ** msvcrt_SnapshotOfEnvironmentW(MSVCRT_wchar_t **wblk)
 106 {
 107   MSVCRT_wchar_t* wenviron_strings = GetEnvironmentStringsW();
 108   int count = 1, len = 1, i = 0; /* keep space for the trailing NULLS */
 109   MSVCRT_wchar_t *wptr;
 110
 111   for (wptr = wenviron_strings; *wptr; wptr += strlenW(wptr) + 1)
 112   {
 113     count++;
 114     len += strlenW(wptr) + 1;
 115   }
 116   if (wblk)
 117       wblk = HeapReAlloc( GetProcessHeap(), 0, wblk, count* sizeof(MSVCRT_wchar_t*) + len * sizeof(MSVCRT_wchar_t));
 118   else
 119     wblk = HeapAlloc(GetProcessHeap(), 0, count* sizeof(MSVCRT_wchar_t*) + len * sizeof(MSVCRT_wchar_t));
 120   if (wblk)
 121     {
 122       if (count)
 123         {
 124           memcpy(&wblk[count],wenviron_strings,len * sizeof(MSVCRT_wchar_t));
 125           for (wptr = (MSVCRT_wchar_t*)&wblk[count]; *wptr; wptr += strlenW(wptr) + 1)
 126             {
 127               wblk[i++] = wptr;
 128             }
 129         }
 130       wblk[i] = NULL;
 131     }
 132   FreeEnvironmentStringsW(wenviron_strings);
 133   return wblk;
 134 }
 135
 136 typedef void (*_INITTERMFUN)(void);
 137
 138 /***********************************************************************
 139  *              __p___argc (MSVCRT.@)
 140  */
 141 int* __p___argc(void) { return &MSVCRT___argc; }
 142
 143 /***********************************************************************
 144  *              __p__commode (MSVCRT.@)
 145  */
 146 unsigned int* __p__commode(void) { return &MSVCRT__commode; }
 147
 148
 149 /***********************************************************************
 150  *              __p__pgmptr (MSVCRT.@)
 151  */
 152 char** __p__pgmptr(void) { return &MSVCRT__pgmptr; }
 153
 154 /***********************************************************************
 155  *              __p__wpgmptr (MSVCRT.@)
 156  */
 157 WCHAR** __p__wpgmptr(void) { return &MSVCRT__wpgmptr; }
 158
 159 /***********************************************************************
 160  *              __p__fmode (MSVCRT.@)
 161  */
 162 unsigned int* __p__fmode(void) { return &MSVCRT__fmode; }
 163
 164 /***********************************************************************
 165  *              __p__osver (MSVCRT.@)
 166  */
 167 unsigned int* __p__osver(void) { return &MSVCRT__osver; }
 168
 169 /***********************************************************************
 170  *              __p__winmajor (MSVCRT.@)
 171  */
 172 unsigned int* __p__winmajor(void) { return &MSVCRT__winmajor; }
 173
 174 /***********************************************************************
 175  *              __p__winminor (MSVCRT.@)
 176  */
 177 unsigned int* __p__winminor(void) { return &MSVCRT__winminor; }
 178
 179 /***********************************************************************
 180  *              __p__winver (MSVCRT.@)
 181  */
 182 unsigned int* __p__winver(void) { return &MSVCRT__winver; }
 183
 184 /*********************************************************************
 185  *              __p__acmdln (MSVCRT.@)
 186  */
 187 char** __p__acmdln(void) { return &MSVCRT__acmdln; }
 188
 189 /*********************************************************************
 190  *              __p__wcmdln (MSVCRT.@)
 191  */
 192 MSVCRT_wchar_t** __p__wcmdln(void) { return &MSVCRT__wcmdln; }
 193
 194 /*********************************************************************
 195  *              __p___argv (MSVCRT.@)
 196  */
 197 char*** __p___argv(void) { return &MSVCRT___argv; }
 198
 199 /*********************************************************************
 200  *              __p___wargv (MSVCRT.@)
 201  */
 202 MSVCRT_wchar_t*** __p___wargv(void) { return &MSVCRT___wargv; }
 203
 204 /*********************************************************************
 205  *              __p__environ (MSVCRT.@)
 206  */
 207 char*** __p__environ(void)
 208 {
 209   if (!_environ)
 210     _environ = msvcrt_SnapshotOfEnvironmentA(NULL);
 211   return &_environ;
 212 }
 213
 214 /*********************************************************************
 215  *              __p__wenviron (MSVCRT.@)
 216  */
 217 MSVCRT_wchar_t*** __p__wenviron(void)
 218 {
 219   if (!_wenviron)
 220     _wenviron = msvcrt_SnapshotOfEnvironmentW(NULL);
 221   return &_wenviron;
 222 }
 223
 224 /*********************************************************************
 225  *              __p___initenv (MSVCRT.@)
 226  */
 227 char*** __p___initenv(void) { return &MSVCRT___initenv; }
 228
 229 /*********************************************************************
 230  *              __p___winitenv (MSVCRT.@)
 231  */
 232 MSVCRT_wchar_t*** __p___winitenv(void) { return &MSVCRT___winitenv; }
 233
 234 /*********************************************************************
 235  *              __p__timezone (MSVCRT.@)
 236  */
 237 int* __p__timezone(void) { return &MSVCRT_timezone; }
 238
 239 /* INTERNAL: Create a wide string from an ascii string */
 240 static MSVCRT_wchar_t *wstrdupa(const char *str)
 241 {
 242   const size_t len = strlen(str) + 1 ;
 243   MSVCRT_wchar_t *wstr = MSVCRT_malloc(len* sizeof (MSVCRT_wchar_t));
 244   if (!wstr)
 245     return NULL;
 246    MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED,str,len,wstr,len);
 247   return wstr;
 248 }
 249
 250 /* INTERNAL: Since we can't rely on Winelib startup code calling w/getmainargs,
 251  * we initialise data values during DLL loading. When called by a native
 252  * program we simply return the data we've already initialised. This also means
 253  * you can call multiple times without leaking
 254  */
 255 void msvcrt_init_args(void)
 256 {
 257   DWORD version;
 258
 259   MSVCRT__acmdln = _strdup( GetCommandLineA() );
 260   MSVCRT__wcmdln = wstrdupa(MSVCRT__acmdln);
 261   MSVCRT___argc = __wine_main_argc;
 262   MSVCRT___argv = __wine_main_argv;
 263   MSVCRT___wargv = __wine_main_wargv;
 264
 265   TRACE("got '%s', wide = %s argc=%d\n", MSVCRT__acmdln,
 266         debugstr_w(MSVCRT__wcmdln),MSVCRT___argc);
 267
 268   version = GetVersion();
 269   MSVCRT__osver       = version >> 16;
 270   MSVCRT__winminor    = version & 0xFF;
 271   MSVCRT__winmajor    = (version>>8) & 0xFF;
 272   MSVCRT_baseversion = version >> 16;
 273   MSVCRT__winver     = ((version >> 8) & 0xFF) + ((version & 0xFF) << 8);
 274   MSVCRT_baseminor   = (version >> 16) & 0xFF;
 275   MSVCRT_basemajor   = (version >> 24) & 0xFF;
 276   MSVCRT_osversion   = version & 0xFFFF;
 277   MSVCRT_osminor     = version & 0xFF;
 278   MSVCRT_osmajor     = (version>>8) & 0xFF;
 279   MSVCRT__sys_nerr   = 43;
 280   MSVCRT__HUGE = HUGE_VAL;
 281   MSVCRT___setlc_active = 0;
 282   MSVCRT___unguarded_readlc_active = 0;
 283   MSVCRT_timezone = 0;
 284   MSVCRT__fmode = MSVCRT__O_TEXT;
 285
 286   MSVCRT___initenv= msvcrt_SnapshotOfEnvironmentA(NULL);
 287   MSVCRT___winitenv= msvcrt_SnapshotOfEnvironmentW(NULL);
 288
 289   MSVCRT__pgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH);
 290   if (MSVCRT__pgmptr)
 291   {
 292     if (!GetModuleFileNameA(0, MSVCRT__pgmptr, MAX_PATH))
 293       MSVCRT__pgmptr[0] = '\0';
 294     else
 295       MSVCRT__pgmptr[MAX_PATH - 1] = '\0';
 296   }
 297
 298   MSVCRT__wpgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR));
 299   if (MSVCRT__wpgmptr)
 300   {
 301     if (!GetModuleFileNameW(0, MSVCRT__wpgmptr, MAX_PATH))
 302       MSVCRT__wpgmptr[0] = '\0';
 303     else
 304       MSVCRT__wpgmptr[MAX_PATH - 1] = '\0';
 305   }
 306 }
 307
 308
 309 /* INTERNAL: free memory used by args */
 310 void msvcrt_free_args(void)
 311 {
 312   /* FIXME: more things to free */
 313   if (MSVCRT___initenv) HeapFree(GetProcessHeap(), 0, MSVCRT___initenv);
 314   if (MSVCRT___winitenv) HeapFree(GetProcessHeap(), 0, MSVCRT___winitenv);
 315   if (_environ) HeapFree(GetProcessHeap(), 0, _environ);
 316   if (_wenviron) HeapFree(GetProcessHeap(), 0, _wenviron);
 317   if (MSVCRT__pgmptr) HeapFree(GetProcessHeap(), 0, MSVCRT__pgmptr);
 318   if (MSVCRT__wpgmptr) HeapFree(GetProcessHeap(), 0, MSVCRT__wpgmptr);
 319 }
 320
 321 /*********************************************************************
 322  *              __getmainargs (MSVCRT.@)
 323  */
 324 void __getmainargs(int *argc, char** *argv, char** *envp,
 325                                   int expand_wildcards, int *new_mode)
 326 {
 327   TRACE("(%p,%p,%p,%d,%p).\n", argc, argv, envp, expand_wildcards, new_mode);
 328   *argc = MSVCRT___argc;
 329   *argv = MSVCRT___argv;
 330   *envp = MSVCRT___initenv;
 331   if (new_mode)
 332     MSVCRT__set_new_mode( *new_mode );
 333 }
 334
 335 /*********************************************************************
 336  *              __wgetmainargs (MSVCRT.@)
 337  */
 338 void __wgetmainargs(int *argc, MSVCRT_wchar_t** *wargv, MSVCRT_wchar_t** *wenvp,
 339                     int expand_wildcards, int *new_mode)
 340 {
 341   TRACE("(%p,%p,%p,%d,%p).\n", argc, wargv, wenvp, expand_wildcards, new_mode);
 342   *argc = MSVCRT___argc;
 343   *wargv = MSVCRT___wargv;
 344   *wenvp = MSVCRT___winitenv;
 345   if (new_mode)
 346     MSVCRT__set_new_mode( *new_mode );
 347 }
 348
 349 /*********************************************************************
 350  *              _initterm (MSVCRT.@)
 351  */
 352 unsigned int _initterm(_INITTERMFUN *start,_INITTERMFUN *end)
 353 {
 354   _INITTERMFUN* current = start;
 355
 356   TRACE("(%p,%p)\n",start,end);
 357   while (current<end)
 358   {
 359     if (*current)
 360     {
 361       TRACE("Call init function %p\n",*current);
 362       (**current)();
 363       TRACE("returned\n");
 364     }
 365     current++;
 366   }
 367   return 0;
 368 }
 369
 370 /*********************************************************************
 371  *              __set_app_type (MSVCRT.@)
 372  */
 373 void MSVCRT___set_app_type(int app_type)
 374 {
 375   TRACE("(%d) %s application\n", app_type, app_type == 2 ? "Gui" : "Console");
 376   MSVCRT_app_type = app_type;
 377 }