git.oblomov.eu Git - wine/blob - dlls/kernel/format_msg.c

   1 /*
   2  * FormatMessage implementation
   3  *
   4  * Copyright 1996 Marcus Meissner
   5  */
   6
   7 #include "config.h"
   8
   9 #include <stdio.h>
  10 #include <string.h>
  11
  12 #include "windef.h"
  13 #include "winbase.h"
  14 #include "winerror.h"
  15 #include "winuser.h"
  16 #include "winnls.h"
  17 #include "wine/unicode.h"
  18
  19 #include "heap.h"
  20 #include "debugtools.h"
  21
  22 DEFAULT_DEBUG_CHANNEL(resource);
  23
  24
  25 /* Messages...used by FormatMessage32* (KERNEL32.something)
  26  *
  27  * They can be specified either directly or using a message ID and
  28  * loading them from the resource.
  29  *
  30  * The resourcedata has following format:
  31  * start:
  32  * 0: DWORD nrofentries
  33  * nrofentries * subentry:
  34  *      0: DWORD firstentry
  35  *      4: DWORD lastentry
  36  *      8: DWORD offset from start to the stringentries
  37  *
  38  * (lastentry-firstentry) * stringentry:
  39  * 0: WORD len (0 marks end)    [ includes the 4 byte header length ]
  40  * 2: WORD flags
  41  * 4: CHAR[len-4]
  42  *      (stringentry i of a subentry refers to the ID 'firstentry+i')
  43  *
  44  * Yes, ANSI strings in win32 resources. Go figure.
  45  */
  46
  47 /**********************************************************************
  48  *      load_messageA           (internal)
  49  */
  50 static INT load_messageA( HMODULE instance, UINT id, WORD lang,
  51                           LPSTR buffer, INT buflen )
  52 {
  53     HGLOBAL     hmem;
  54     HRSRC       hrsrc;
  55     PMESSAGE_RESOURCE_DATA      mrd;
  56     PMESSAGE_RESOURCE_BLOCK     mrb;
  57     PMESSAGE_RESOURCE_ENTRY     mre;
  58     int         i,slen;
  59
  60     TRACE("instance = %08lx, id = %08lx, buffer = %p, length = %ld\n", (DWORD)instance, (DWORD)id, buffer, (DWORD)buflen);
  61
  62     /*FIXME: I am not sure about the '1' ... But I've only seen those entries*/
  63     hrsrc = FindResourceExW(instance,RT_MESSAGETABLEW,(LPWSTR)1,lang);
  64     if (!hrsrc) return 0;
  65     hmem = LoadResource( instance, hrsrc );
  66     if (!hmem) return 0;
  67
  68     mrd = (PMESSAGE_RESOURCE_DATA)LockResource(hmem);
  69     mre = NULL;
  70     mrb = &(mrd->Blocks[0]);
  71     for (i=mrd->NumberOfBlocks;i--;) {
  72         if ((id>=mrb->LowId) && (id<=mrb->HighId)) {
  73             mre = (PMESSAGE_RESOURCE_ENTRY)(((char*)mrd)+mrb->OffsetToEntries);
  74             id  -= mrb->LowId;
  75             break;
  76         }
  77         mrb++;
  78     }
  79     if (!mre)
  80         return 0;
  81     for (i=id;i--;) {
  82         if (!mre->Length)
  83                 return 0;
  84         mre = (PMESSAGE_RESOURCE_ENTRY)(((char*)mre)+mre->Length);
  85     }
  86     slen=mre->Length;
  87     TRACE("     - strlen=%d\n",slen);
  88     i = min(buflen - 1, slen);
  89     if (buffer == NULL)
  90         return slen;
  91     if (i>0) {
  92         if (mre->Flags & MESSAGE_RESOURCE_UNICODE)
  93             WideCharToMultiByte( CP_ACP, 0, (LPWSTR)mre->Text, -1, buffer, i, NULL, NULL );
  94         else
  95             lstrcpynA(buffer, (LPSTR)mre->Text, i);
  96         buffer[i]=0;
  97     } else {
  98         if (buflen>1) {
  99             buffer[0]=0;
 100             return 0;
 101         }
 102     }
 103     if (buffer)
 104             TRACE("'%s' copied !\n", buffer);
 105     return i;
 106 }
 107
 108 #if 0  /* FIXME */
 109 /**********************************************************************
 110  *      load_messageW   (internal)
 111  */
 112 static INT load_messageW( HMODULE instance, UINT id, WORD lang,
 113                           LPWSTR buffer, INT buflen )
 114 {
 115     INT retval;
 116     LPSTR buffer2 = NULL;
 117     if (buffer && buflen)
 118         buffer2 = HeapAlloc( GetProcessHeap(), 0, buflen );
 119     retval = load_messageA(instance,id,lang,buffer2,buflen);
 120     if (buffer)
 121     {
 122         if (retval) {
 123             lstrcpynAtoW( buffer, buffer2, buflen );
 124             retval = strlenW( buffer );
 125         }
 126         HeapFree( GetProcessHeap(), 0, buffer2 );
 127     }
 128     return retval;
 129 }
 130 #endif
 131
 132
 133 /***********************************************************************
 134  *           FormatMessageA   (KERNEL32.@)
 135  * FIXME: missing wrap,
 136  */
 137 DWORD WINAPI FormatMessageA(
 138         DWORD   dwFlags,
 139         LPCVOID lpSource,
 140         DWORD   dwMessageId,
 141         DWORD   dwLanguageId,
 142         LPSTR   lpBuffer,
 143         DWORD   nSize,
 144         va_list* _args )
 145 {
 146     LPDWORD args=(LPDWORD)_args;
 147 #ifdef __i386__
 148 /* This implementation is completely dependant on the format of the va_list on x86 CPUs */
 149     LPSTR       target,t;
 150     DWORD       talloced;
 151     LPSTR       from,f;
 152     DWORD       width = dwFlags & FORMAT_MESSAGE_MAX_WIDTH_MASK;
 153     BOOL    eos = FALSE;
 154     INT bufsize;
 155     HMODULE     hmodule = (HMODULE)lpSource;
 156     CHAR        ch;
 157
 158     TRACE("(0x%lx,%p,%ld,0x%lx,%p,%ld,%p)\n",
 159           dwFlags,lpSource,dwMessageId,dwLanguageId,lpBuffer,nSize,args);
 160     if ((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
 161         && (dwFlags & FORMAT_MESSAGE_FROM_HMODULE)) return 0;
 162     if ((dwFlags & FORMAT_MESSAGE_FROM_STRING)
 163         &&((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
 164            || (dwFlags & FORMAT_MESSAGE_FROM_HMODULE))) return 0;
 165
 166     if (width && width != FORMAT_MESSAGE_MAX_WIDTH_MASK)
 167         FIXME("line wrapping (%lu) not supported.\n", width);
 168     from = NULL;
 169     if (dwFlags & FORMAT_MESSAGE_FROM_STRING)
 170     {
 171         from = HeapAlloc( GetProcessHeap(), 0, strlen((LPSTR)lpSource)+1 );
 172         strcpy( from, (LPSTR)lpSource );
 173     }
 174     else {
 175         if (dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
 176             hmodule = GetModuleHandleA("kernel32");
 177         bufsize=load_messageA(hmodule,dwMessageId,dwLanguageId,NULL,100);
 178         if (!bufsize) {
 179             if (dwLanguageId) {
 180                 SetLastError (ERROR_RESOURCE_LANG_NOT_FOUND);
 181                 return 0;
 182             }
 183             bufsize=load_messageA(hmodule,dwMessageId,
 184                                   MAKELANGID(LANG_NEUTRAL,SUBLANG_NEUTRAL),NULL,100);
 185             if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
 186                                                 MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),NULL,100);
 187             if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
 188                                                 MAKELANGID(LANG_NEUTRAL,SUBLANG_SYS_DEFAULT),NULL,100);
 189             if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
 190                                                 MAKELANGID(LANG_NEUTRAL,SUBLANG_SYS_DEFAULT),NULL,100);
 191             if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
 192                                                 MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),NULL,100);
 193             if (!bufsize) {
 194                 SetLastError (ERROR_RESOURCE_LANG_NOT_FOUND);
 195                 return 0;
 196             }
 197         }
 198         from = HeapAlloc( GetProcessHeap(), 0, bufsize + 1 );
 199         load_messageA(hmodule,dwMessageId,dwLanguageId,from,bufsize+1);
 200     }
 201     target      = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, 100);
 202     t   = target;
 203     talloced= 100;
 204
 205 #define ADD_TO_T(c) do { \
 206         *t++=c;\
 207         if (t-target == talloced) {\
 208             target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,talloced*2);\
 209             t = target+talloced;\
 210             talloced*=2;\
 211       }\
 212 } while (0)
 213
 214     if (from) {
 215         f=from;
 216         if (dwFlags & FORMAT_MESSAGE_IGNORE_INSERTS) {
 217             while (*f && !eos)
 218                 ADD_TO_T(*f++);
 219         }
 220         else {
 221             while (*f && !eos) {
 222                 if (*f=='%') {
 223                     int insertnr;
 224                     char *fmtstr,*x,*lastf;
 225                     DWORD *argliststart;
 226
 227                     fmtstr = NULL;
 228                     lastf = f;
 229                     f++;
 230                     if (!*f) {
 231                         ADD_TO_T('%');
 232                         continue;
 233                     }
 234                     switch (*f) {
 235                     case '1':case '2':case '3':case '4':case '5':
 236                     case '6':case '7':case '8':case '9':
 237                         insertnr=*f-'0';
 238                         switch (f[1]) {
 239                         case '0':case '1':case '2':case '3':
 240                         case '4':case '5':case '6':case '7':
 241                         case '8':case '9':
 242                             f++;
 243                             insertnr=insertnr*10+*f-'0';
 244                             f++;
 245                             break;
 246                         default:
 247                             f++;
 248                             break;
 249                         }
 250                         if (*f=='!') {
 251                             f++;
 252                             if (NULL!=(x=strchr(f,'!'))) {
 253                                 *x='\0';
 254                                 fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f)+2);
 255                                 sprintf(fmtstr,"%%%s",f);
 256                                 f=x+1;
 257                             } else {
 258                                 fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f)+2);
 259                                 sprintf(fmtstr,"%%%s",f);
 260                                 f+=strlen(f); /*at \0*/
 261                             }
 262                         } else {
 263                             if(!args) break;
 264                             fmtstr = HeapAlloc(GetProcessHeap(),0,3);
 265                             strcpy( fmtstr, "%s" );
 266                         }
 267                         if (args) {
 268                             int ret;
 269                             int sz;
 270                             LPSTR b;
 271
 272                             if (dwFlags & FORMAT_MESSAGE_ARGUMENT_ARRAY)
 273                                 argliststart=args+insertnr-1;
 274                             else
 275                                 argliststart=(*(DWORD**)args)+insertnr-1;
 276
 277                                 /* FIXME: precision and width components are not handled correctly */
 278                             if (strcmp(fmtstr, "%ls") == 0) {
 279                                 sz = WideCharToMultiByte( CP_ACP, 0, *(WCHAR**)argliststart, -1, NULL, 0, NULL, NULL);
 280                                 b = HeapAlloc(GetProcessHeap(), 0, sz);
 281                                 WideCharToMultiByte( CP_ACP, 0, *(WCHAR**)argliststart, -1, b, sz, NULL, NULL);
 282                             } else {
 283                                 b = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sz = 100);
 284                                 /* CMF - This makes a BIG assumption about va_list */
 285                                 TRACE("A BIG assumption\n");
 286                                 while ((ret = vsnprintf(b, sz, fmtstr, (va_list) argliststart) < 0) || (ret >= sz)) {
 287                                     sz = (ret == -1 ? sz + 100 : ret + 1);
 288                                     b = HeapReAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, b, sz);
 289                                 }
 290                             }
 291                             for (x=b; *x; x++) ADD_TO_T(*x);
 292
 293                             HeapFree(GetProcessHeap(),0,b);
 294                         } else {
 295                                 /* NULL args - copy formatstr
 296                                  * (probably wrong)
 297                                  */
 298                             while ((lastf<f)&&(*lastf)) {
 299                                 ADD_TO_T(*lastf++);
 300                             }
 301                         }
 302                         HeapFree(GetProcessHeap(),0,fmtstr);
 303                         break;
 304                     case 'n':
 305                         ADD_TO_T('\r');
 306                         ADD_TO_T('\n');
 307                         f++;
 308                         break;
 309                     case '0':
 310                         eos = TRUE;
 311                         f++;
 312                         break;
 313                     default:
 314                         ADD_TO_T(*f++);
 315                         break;
 316                     }
 317                 } else {
 318                     ch = *f;
 319                     f++;
 320                     if (ch == '\r') {
 321                         if (*f == '\n')
 322                             f++;
 323                         ADD_TO_T(' ');
 324                     } else {
 325                         if (ch == '\n')
 326                         {
 327                             ADD_TO_T('\r');
 328                             ADD_TO_T('\n');
 329                         }
 330                         else
 331                             ADD_TO_T(ch);
 332                     }
 333                 }
 334             }
 335         }
 336         *t='\0';
 337     }
 338     talloced = strlen(target)+1;
 339     if (nSize && talloced<nSize) {
 340         target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,nSize);
 341     }
 342     TRACE("-- %s\n",debugstr_a(target));
 343     if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) {
 344         *((LPVOID*)lpBuffer) = (LPVOID)LocalAlloc(GMEM_ZEROINIT,max(nSize, talloced));
 345         memcpy(*(LPSTR*)lpBuffer,target,talloced);
 346     } else {
 347         lstrcpynA(lpBuffer,target,nSize);
 348     }
 349     HeapFree(GetProcessHeap(),0,target);
 350     if (from) HeapFree(GetProcessHeap(),0,from);
 351     TRACE("-- returning %d\n", (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ?  strlen(*(LPSTR*)lpBuffer):strlen(lpBuffer));
 352     return (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ?
 353         strlen(*(LPSTR*)lpBuffer):
 354             strlen(lpBuffer);
 355 #else
 356     return 0;
 357 #endif /* __i386__ */
 358 }
 359 #undef ADD_TO_T
 360
 361
 362 /***********************************************************************
 363  *           FormatMessageW   (KERNEL32.@)
 364  */
 365 DWORD WINAPI FormatMessageW(
 366         DWORD   dwFlags,
 367         LPCVOID lpSource,
 368         DWORD   dwMessageId,
 369         DWORD   dwLanguageId,
 370         LPWSTR  lpBuffer,
 371         DWORD   nSize,
 372         va_list* _args )
 373 {
 374     LPDWORD args=(LPDWORD)_args;
 375 #ifdef __i386__
 376 /* This implementation is completely dependant on the format of the va_list on x86 CPUs */
 377     LPSTR target,t;
 378     DWORD talloced;
 379     LPSTR from,f;
 380     DWORD width = dwFlags & FORMAT_MESSAGE_MAX_WIDTH_MASK;
 381     BOOL eos = FALSE;
 382     INT bufsize;
 383     HMODULE hmodule = (HMODULE)lpSource;
 384     CHAR ch;
 385
 386     TRACE("(0x%lx,%p,%ld,0x%lx,%p,%ld,%p)\n",
 387           dwFlags,lpSource,dwMessageId,dwLanguageId,lpBuffer,nSize,args);
 388     if ((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
 389         && (dwFlags & FORMAT_MESSAGE_FROM_HMODULE)) return 0;
 390     if ((dwFlags & FORMAT_MESSAGE_FROM_STRING)
 391         &&((dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
 392            || (dwFlags & FORMAT_MESSAGE_FROM_HMODULE))) return 0;
 393
 394     if (width && width != FORMAT_MESSAGE_MAX_WIDTH_MASK)
 395         FIXME("line wrapping not supported.\n");
 396     from = NULL;
 397     if (dwFlags & FORMAT_MESSAGE_FROM_STRING) {
 398         from = HEAP_strdupWtoA(GetProcessHeap(),0,(LPWSTR)lpSource);
 399     }
 400     else {
 401         if (dwFlags & FORMAT_MESSAGE_FROM_SYSTEM)
 402             hmodule = GetModuleHandleA("kernel32");
 403         bufsize=load_messageA(hmodule,dwMessageId,dwLanguageId,NULL,100);
 404         if (!bufsize) {
 405             if (dwLanguageId) {
 406                 SetLastError (ERROR_RESOURCE_LANG_NOT_FOUND);
 407                 return 0;
 408             }
 409             bufsize=load_messageA(hmodule,dwMessageId,
 410                                   MAKELANGID(LANG_NEUTRAL,SUBLANG_NEUTRAL),NULL,100);
 411             if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
 412                                                 MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT),NULL,100);
 413             if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
 414                                                 MAKELANGID(LANG_NEUTRAL,SUBLANG_SYS_DEFAULT),NULL,100);
 415             if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
 416                                                 MAKELANGID(LANG_NEUTRAL,SUBLANG_SYS_DEFAULT),NULL,100);
 417             if (!bufsize) bufsize=load_messageA(hmodule,dwMessageId,
 418                                                 MAKELANGID(LANG_ENGLISH,SUBLANG_ENGLISH_US),NULL,100);
 419             if (!bufsize) {
 420                 SetLastError (ERROR_RESOURCE_LANG_NOT_FOUND);
 421                 return 0;
 422             }
 423         }
 424         from = HeapAlloc( GetProcessHeap(), 0, bufsize + 1 );
 425         load_messageA(hmodule,dwMessageId,dwLanguageId,from,bufsize+1);
 426     }
 427     target = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, 100 );
 428     t = target;
 429     talloced= 100;
 430
 431 #define ADD_TO_T(c)  do {\
 432     *t++=c;\
 433     if (t-target == talloced) {\
 434         target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,talloced*2);\
 435         t = target+talloced;\
 436         talloced*=2;\
 437     } \
 438 } while (0)
 439
 440     if (from) {
 441         f=from;
 442         if (dwFlags & FORMAT_MESSAGE_IGNORE_INSERTS) {
 443             while (*f && !eos)
 444                 ADD_TO_T(*f++);
 445         }
 446         else {
 447             while (*f && !eos) {
 448                 if (*f=='%') {
 449                     int insertnr;
 450                     char *fmtstr,*sprintfbuf,*x;
 451                     DWORD *argliststart;
 452
 453                     fmtstr = NULL;
 454                     f++;
 455                     if (!*f) {
 456                         ADD_TO_T('%');
 457                         continue;
 458                     }
 459
 460                     switch (*f) {
 461                     case '1':case '2':case '3':case '4':case '5':
 462                     case '6':case '7':case '8':case '9':
 463                         insertnr=*f-'0';
 464                         switch (f[1]) {
 465                         case '0':case '1':case '2':case '3':
 466                         case '4':case '5':case '6':case '7':
 467                         case '8':case '9':
 468                             f++;
 469                             insertnr=insertnr*10+*f-'0';
 470                             f++;
 471                             break;
 472                         default:
 473                             f++;
 474                             break;
 475                         }
 476                         if (*f=='!') {
 477                             f++;
 478                             if (NULL!=(x=strchr(f,'!'))) {
 479                                 *x='\0';
 480                                 fmtstr=HeapAlloc( GetProcessHeap(), 0, strlen(f)+2);
 481                                 sprintf(fmtstr,"%%%s",f);
 482                                 f=x+1;
 483                             } else {
 484                                 fmtstr=HeapAlloc(GetProcessHeap(),0,strlen(f));
 485                                 sprintf(fmtstr,"%%%s",f);
 486                                 f+=strlen(f); /*at \0*/
 487                             }
 488                         } else {
 489                             if(!args) break;
 490                             fmtstr = HeapAlloc( GetProcessHeap(),0,3);
 491                             strcpy( fmtstr, "%s" );
 492                         }
 493                         if (dwFlags & FORMAT_MESSAGE_ARGUMENT_ARRAY)
 494                             argliststart=args+insertnr-1;
 495                         else
 496                             argliststart=(*(DWORD**)args)+insertnr-1;
 497
 498                         if (fmtstr[strlen(fmtstr)-1]=='s' && argliststart[0]) {
 499                             DWORD xarr[3];
 500
 501                             xarr[0]=(DWORD)HEAP_strdupWtoA(GetProcessHeap(),0,(LPWSTR)(*(argliststart+0)));
 502                             /* possible invalid pointers */
 503                             xarr[1]=*(argliststart+1);
 504                             xarr[2]=*(argliststart+2);
 505                             sprintfbuf=HeapAlloc(GetProcessHeap(),0,strlenW((LPWSTR)argliststart[0])*2+1);
 506
 507                             /* CMF - This makes a BIG assumption about va_list */
 508                             vsprintf(sprintfbuf, fmtstr, (va_list) xarr);
 509                         } else {
 510                             sprintfbuf=HeapAlloc(GetProcessHeap(),0,100);
 511
 512                             /* CMF - This makes a BIG assumption about va_list */
 513                             vsprintf(sprintfbuf, fmtstr, (va_list) argliststart);
 514                         }
 515                         x=sprintfbuf;
 516                         while (*x) {
 517                             ADD_TO_T(*x++);
 518                         }
 519                         HeapFree(GetProcessHeap(),0,sprintfbuf);
 520                         HeapFree(GetProcessHeap(),0,fmtstr);
 521                         break;
 522                     case 'n':
 523                         ADD_TO_T('\r');
 524                         ADD_TO_T('\n');
 525                         f++;
 526                         break;
 527                     case '0':
 528                         eos = TRUE;
 529                         f++;
 530                         break;
 531                     default:
 532                         ADD_TO_T(*f++);
 533                         break;
 534                     }
 535                 } else {
 536                     ch = *f;
 537                     f++;
 538                     if (ch == '\r') {
 539                         if (*f == '\n')
 540                             f++;
 541                         ADD_TO_T(' ');
 542                     } else {
 543                         if (ch == '\n')
 544                         {
 545                             ADD_TO_T('\r');
 546                             ADD_TO_T('\n');
 547                         }
 548                         else
 549                             ADD_TO_T(ch);
 550                     }
 551                 }
 552             }
 553         }
 554         *t='\0';
 555     }
 556     talloced = strlen(target)+1;
 557     if (nSize && talloced<nSize)
 558         target = (char*)HeapReAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,target,nSize);
 559     if (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) {
 560         /* nSize is the MINIMUM size */
 561         DWORD len = MultiByteToWideChar( CP_ACP, 0, target, -1, NULL, 0 );
 562         *((LPVOID*)lpBuffer) = (LPVOID)LocalAlloc(GMEM_ZEROINIT,len*sizeof(WCHAR));
 563         MultiByteToWideChar( CP_ACP, 0, target, -1, *(LPWSTR*)lpBuffer, len );
 564     }
 565     else
 566     {
 567         if (nSize > 0 && !MultiByteToWideChar( CP_ACP, 0, target, -1, lpBuffer, nSize ))
 568             lpBuffer[nSize-1] = 0;
 569     }
 570     HeapFree(GetProcessHeap(),0,target);
 571     if (from) HeapFree(GetProcessHeap(),0,from);
 572     return (dwFlags & FORMAT_MESSAGE_ALLOCATE_BUFFER) ?
 573         strlenW(*(LPWSTR*)lpBuffer):
 574             strlenW(lpBuffer);
 575 #else
 576     return 0;
 577 #endif /* __i386__ */
 578 }
 579 #undef ADD_TO_T