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