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
  27 #include "msvcrt/fcntl.h"
  28 #include "msvcrt/stdlib.h"
  29 #include "msvcrt/string.h"
  30
  31 #include "wine/library.h"
  32 #include "wine/unicode.h"
  33 #include "wine/debug.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(msvcrt);
  36
  37 unsigned int MSVCRT___argc;
  38 unsigned int MSVCRT_basemajor;/* FIXME: */
  39 unsigned int MSVCRT_baseminor;/* FIXME: */
  40 unsigned int MSVCRT_baseversion; /* FIXME: */
  41 unsigned int MSVCRT__commode;
  42 unsigned int MSVCRT__fmode;
  43 unsigned int MSVCRT_osmajor;/* FIXME: */
  44 unsigned int MSVCRT_osminor;/* FIXME: */
  45 unsigned int MSVCRT_osmode;/* FIXME: */
  46 unsigned int MSVCRT__osver;
  47 unsigned int MSVCRT_osversion; /* FIXME: */
  48 unsigned int MSVCRT__winmajor;
  49 unsigned int MSVCRT__winminor;
  50 unsigned int MSVCRT__winver;
  51 unsigned int MSVCRT__sys_nerr; /* FIXME: not accessible from Winelib apps */
  52 char**       MSVCRT__sys_errlist; /* FIXME: not accessible from Winelib apps */
  53 unsigned int MSVCRT___setlc_active;
  54 unsigned int MSVCRT___unguarded_readlc_active;
  55 double MSVCRT__HUGE;
  56 char **MSVCRT___argv;
  57 MSVCRT_wchar_t **MSVCRT___wargv;
  58 char *MSVCRT__acmdln;
  59 MSVCRT_wchar_t *MSVCRT__wcmdln;
  60 char **MSVCRT__environ = 0;
  61 MSVCRT_wchar_t **MSVCRT__wenviron = 0;
  62 char **MSVCRT___initenv = 0;
  63 MSVCRT_wchar_t **MSVCRT___winitenv = 0;
  64 int MSVCRT_timezone;
  65 int MSVCRT_app_type;
  66 char* MSVCRT__pgmptr = 0;
  67 WCHAR* MSVCRT__wpgmptr = 0;
  68
  69 /* Get a snapshot of the current environment
  70  * and construct the __p__environ array
  71  *
  72  * The pointer returned from GetEnvironmentStrings may get invalid when
  73  * some other module cause a reallocation of the env-variable block
  74  *
  75  * blk is an array of pointers to environment strings, ending with a NULL
  76  * and after that the actual copy of the environment strings, ending in a \0
  77  */
  78 char ** msvcrt_SnapshotOfEnvironmentA(char **blk)
  79 {
  80   char* environ_strings = GetEnvironmentStringsA();
  81   int count = 1, len = 1, i = 0; /* keep space for the trailing NULLS */
  82   char *ptr;
  83
  84   for (ptr = environ_strings; *ptr; ptr += strlen(ptr) + 1)
  85   {
  86     count++;
  87     len += strlen(ptr) + 1;
  88   }
  89   if (blk)
  90       blk = HeapReAlloc( GetProcessHeap(), 0, blk, count* sizeof(char*) + len );
  91   else
  92     blk = HeapAlloc(GetProcessHeap(), 0, count* sizeof(char*) + len );
  93
  94   if (blk)
  95     {
  96       if (count)
  97         {
  98           memcpy(&blk[count],environ_strings,len);
  99           for (ptr = (char*) &blk[count]; *ptr; ptr += strlen(ptr) + 1)
 100             {
 101               blk[i++] = ptr;
 102             }
 103         }
 104       blk[i] = NULL;
 105     }
 106   FreeEnvironmentStringsA(environ_strings);
 107   return blk;
 108 }
 109
 110 MSVCRT_wchar_t ** msvcrt_SnapshotOfEnvironmentW(MSVCRT_wchar_t **wblk)
 111 {
 112   MSVCRT_wchar_t* wenviron_strings = GetEnvironmentStringsW();
 113   int count = 1, len = 1, i = 0; /* keep space for the trailing NULLS */
 114   MSVCRT_wchar_t *wptr;
 115
 116   for (wptr = wenviron_strings; *wptr; wptr += strlenW(wptr) + 1)
 117   {
 118     count++;
 119     len += strlenW(wptr) + 1;
 120   }
 121   if (wblk)
 122       wblk = HeapReAlloc( GetProcessHeap(), 0, wblk, count* sizeof(MSVCRT_wchar_t*) + len * sizeof(MSVCRT_wchar_t));
 123   else
 124     wblk = HeapAlloc(GetProcessHeap(), 0, count* sizeof(MSVCRT_wchar_t*) + len * sizeof(MSVCRT_wchar_t));
 125   if (wblk)
 126     {
 127       if (count)
 128         {
 129           memcpy(&wblk[count],wenviron_strings,len * sizeof(MSVCRT_wchar_t));
 130           for (wptr = (MSVCRT_wchar_t*)&wblk[count]; *wptr; wptr += strlenW(wptr) + 1)
 131             {
 132               wblk[i++] = wptr;
 133             }
 134         }
 135       wblk[i] = NULL;
 136     }
 137   FreeEnvironmentStringsW(wenviron_strings);
 138   return wblk;
 139 }
 140
 141 typedef void (*_INITTERMFUN)(void);
 142
 143 /***********************************************************************
 144  *              __p___argc (MSVCRT.@)
 145  */
 146 int* __p___argc(void) { return &MSVCRT___argc; }
 147
 148 /***********************************************************************
 149  *              __p__commode (MSVCRT.@)
 150  */
 151 unsigned int* __p__commode(void) { return &MSVCRT__commode; }
 152
 153
 154 /***********************************************************************
 155  *              __p__pgmptr (MSVCRT.@)
 156  */
 157 char** __p__pgmptr(void) { return &MSVCRT__pgmptr; }
 158
 159 /***********************************************************************
 160  *              __p__wpgmptr (MSVCRT.@)
 161  */
 162 WCHAR** __p__wpgmptr(void) { return &MSVCRT__wpgmptr; }
 163
 164 /***********************************************************************
 165  *              __p__fmode (MSVCRT.@)
 166  */
 167 unsigned int* __p__fmode(void) { return &MSVCRT__fmode; }
 168
 169 /***********************************************************************
 170  *              __p__osver (MSVCRT.@)
 171  */
 172 unsigned int* __p__osver(void) { return &MSVCRT__osver; }
 173
 174 /***********************************************************************
 175  *              __p__winmajor (MSVCRT.@)
 176  */
 177 unsigned int* __p__winmajor(void) { return &MSVCRT__winmajor; }
 178
 179 /***********************************************************************
 180  *              __p__winminor (MSVCRT.@)
 181  */
 182 unsigned int* __p__winminor(void) { return &MSVCRT__winminor; }
 183
 184 /***********************************************************************
 185  *              __p__winver (MSVCRT.@)
 186  */
 187 unsigned int* __p__winver(void) { return &MSVCRT__winver; }
 188
 189 /*********************************************************************
 190  *              __p__acmdln (MSVCRT.@)
 191  */
 192 char** __p__acmdln(void) { return &MSVCRT__acmdln; }
 193
 194 /*********************************************************************
 195  *              __p__wcmdln (MSVCRT.@)
 196  */
 197 MSVCRT_wchar_t** __p__wcmdln(void) { return &MSVCRT__wcmdln; }
 198
 199 /*********************************************************************
 200  *              __p___argv (MSVCRT.@)
 201  */
 202 char*** __p___argv(void) { return &MSVCRT___argv; }
 203
 204 /*********************************************************************
 205  *              __p___wargv (MSVCRT.@)
 206  */
 207 MSVCRT_wchar_t*** __p___wargv(void) { return &MSVCRT___wargv; }
 208
 209 /*********************************************************************
 210  *              __p__environ (MSVCRT.@)
 211  */
 212 char*** __p__environ(void)
 213 {
 214   if (!MSVCRT__environ)
 215     MSVCRT__environ = msvcrt_SnapshotOfEnvironmentA(NULL);
 216   return &MSVCRT__environ;
 217 }
 218
 219 /*********************************************************************
 220  *              __p__wenviron (MSVCRT.@)
 221  */
 222 MSVCRT_wchar_t*** __p__wenviron(void)
 223 {
 224   if (!MSVCRT__wenviron)
 225     MSVCRT__wenviron = msvcrt_SnapshotOfEnvironmentW(NULL);
 226   return &MSVCRT__wenviron;
 227 }
 228
 229 /*********************************************************************
 230  *              __p___initenv (MSVCRT.@)
 231  */
 232 char*** __p___initenv(void) { return &MSVCRT___initenv; }
 233
 234 /*********************************************************************
 235  *              __p___winitenv (MSVCRT.@)
 236  */
 237 MSVCRT_wchar_t*** __p___winitenv(void) { return &MSVCRT___winitenv; }
 238
 239 /*********************************************************************
 240  *              __p__timezone (MSVCRT.@)
 241  */
 242 int* __p__timezone(void) { return &MSVCRT_timezone; }
 243
 244 /* INTERNAL: Create a wide string from an ascii string */
 245 static MSVCRT_wchar_t *wstrdupa(const char *str)
 246 {
 247   const size_t len = strlen(str) + 1 ;
 248   MSVCRT_wchar_t *wstr = MSVCRT_malloc(len* sizeof (MSVCRT_wchar_t));
 249   if (!wstr)
 250     return NULL;
 251    MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED,str,len,wstr,len);
 252   return wstr;
 253 }
 254
 255 /* INTERNAL: Since we can't rely on Winelib startup code calling w/getmainargs,
 256  * we initialise data values during DLL loading. When called by a native
 257  * program we simply return the data we've already initialised. This also means
 258  * you can call multiple times without leaking
 259  */
 260 void msvcrt_init_args(void)
 261 {
 262   DWORD version;
 263
 264   MSVCRT__acmdln = _strdup( GetCommandLineA() );
 265   MSVCRT__wcmdln = wstrdupa(MSVCRT__acmdln);
 266   MSVCRT___argc = __wine_main_argc;
 267   MSVCRT___argv = __wine_main_argv;
 268   MSVCRT___wargv = __wine_main_wargv;
 269
 270   TRACE("got '%s', wide = %s argc=%d\n", MSVCRT__acmdln,
 271         debugstr_w(MSVCRT__wcmdln),MSVCRT___argc);
 272
 273   version = GetVersion();
 274   MSVCRT__osver       = version >> 16;
 275   MSVCRT__winminor    = version & 0xFF;
 276   MSVCRT__winmajor    = (version>>8) & 0xFF;
 277   MSVCRT_baseversion = version >> 16;
 278   MSVCRT__winver     = ((version >> 8) & 0xFF) + ((version & 0xFF) << 8);
 279   MSVCRT_baseminor   = (version >> 16) & 0xFF;
 280   MSVCRT_basemajor   = (version >> 24) & 0xFF;
 281   MSVCRT_osversion   = version & 0xFFFF;
 282   MSVCRT_osminor     = version & 0xFF;
 283   MSVCRT_osmajor     = (version>>8) & 0xFF;
 284   MSVCRT__sys_nerr   = 43;
 285   MSVCRT__HUGE = HUGE_VAL;
 286   MSVCRT___setlc_active = 0;
 287   MSVCRT___unguarded_readlc_active = 0;
 288   MSVCRT_timezone = 0;
 289   MSVCRT__fmode = _O_TEXT;
 290
 291   MSVCRT___initenv= msvcrt_SnapshotOfEnvironmentA(NULL);
 292   MSVCRT___winitenv= msvcrt_SnapshotOfEnvironmentW(NULL);
 293
 294   MSVCRT__pgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH);
 295   if (MSVCRT__pgmptr)
 296     GetModuleFileNameA(0, MSVCRT__pgmptr, MAX_PATH);
 297
 298   MSVCRT__wpgmptr = HeapAlloc(GetProcessHeap(), 0, MAX_PATH * sizeof(WCHAR));
 299   if (MSVCRT__wpgmptr)
 300     GetModuleFileNameW(0, MSVCRT__wpgmptr, MAX_PATH);
 301 }
 302
 303
 304 /* INTERNAL: free memory used by args */
 305 void msvcrt_free_args(void)
 306 {
 307   /* FIXME: more things to free */
 308   if (MSVCRT___initenv) HeapFree(GetProcessHeap(), 0, MSVCRT___initenv);
 309   if (MSVCRT___winitenv) HeapFree(GetProcessHeap(), 0, MSVCRT___winitenv);
 310   if (MSVCRT__environ) HeapFree(GetProcessHeap(), 0, MSVCRT__environ);
 311   if (MSVCRT__wenviron) HeapFree(GetProcessHeap(), 0, MSVCRT__wenviron);
 312   if (MSVCRT__pgmptr) HeapFree(GetProcessHeap(), 0, MSVCRT__pgmptr);
 313   if (MSVCRT__wpgmptr) HeapFree(GetProcessHeap(), 0, MSVCRT__wpgmptr);
 314 }
 315
 316 /*********************************************************************
 317  *              __getmainargs (MSVCRT.@)
 318  */
 319 void __getmainargs(int *argc, char** *argv, char** *envp,
 320                                   int expand_wildcards, int *new_mode)
 321 {
 322   TRACE("(%p,%p,%p,%d,%p).\n", argc, argv, envp, expand_wildcards, new_mode);
 323   *argc = MSVCRT___argc;
 324   *argv = MSVCRT___argv;
 325   *envp = MSVCRT___initenv;
 326   if (new_mode)
 327     MSVCRT__set_new_mode( *new_mode );
 328 }
 329
 330 /*********************************************************************
 331  *              __wgetmainargs (MSVCRT.@)
 332  */
 333 void __wgetmainargs(int *argc, MSVCRT_wchar_t** *wargv, MSVCRT_wchar_t** *wenvp,
 334                     int expand_wildcards, int *new_mode)
 335 {
 336   TRACE("(%p,%p,%p,%d,%p).\n", argc, wargv, wenvp, expand_wildcards, new_mode);
 337   *argc = MSVCRT___argc;
 338   *wargv = MSVCRT___wargv;
 339   *wenvp = MSVCRT___winitenv;
 340   if (new_mode)
 341     MSVCRT__set_new_mode( *new_mode );
 342 }
 343
 344 /*********************************************************************
 345  *              _initterm (MSVCRT.@)
 346  */
 347 unsigned int _initterm(_INITTERMFUN *start,_INITTERMFUN *end)
 348 {
 349   _INITTERMFUN* current = start;
 350
 351   TRACE("(%p,%p)\n",start,end);
 352   while (current<end)
 353   {
 354     if (*current)
 355     {
 356       TRACE("Call init function %p\n",*current);
 357       (**current)();
 358       TRACE("returned\n");
 359     }
 360     current++;
 361   }
 362   return 0;
 363 }
 364
 365 /*********************************************************************
 366  *              __set_app_type (MSVCRT.@)
 367  */
 368 void MSVCRT___set_app_type(int app_type)
 369 {
 370   TRACE("(%d) %s application\n", app_type, app_type == 2 ? "Gui" : "Console");
 371   MSVCRT_app_type = app_type;
 372 }