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