dlls/version/info.c

   1 /*
   2  * Implementation of VERSION.DLL - Version Info access
   3  *
   4  * Copyright 1996,1997 Marcus Meissner
   5  * Copyright 1997 David Cuthbert
   6  * Copyright 1999 Ulrich Weigand
   7  * Copyright 2005 Paul Vriens
   8  *
   9  * This library is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU Lesser General Public
  11  * License as published by the Free Software Foundation; either
  12  * version 2.1 of the License, or (at your option) any later version.
  13  *
  14  * This library is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17  * Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with this library; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  22  *
  23  */
  24
  25 #include <stdarg.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28
  29 #include "windef.h"
  30 #include "winbase.h"
  31 #include "winver.h"
  32 #include "winternl.h"
  33 #include "wine/winuser16.h"
  34 #include "wine/unicode.h"
  35 #include "winerror.h"
  36 #include "wine/debug.h"
  37
  38 WINE_DEFAULT_DEBUG_CHANNEL(ver);
  39
  40 /******************************************************************************
  41  *
  42  *   This function will print via standard TRACE, debug info regarding
  43  *   the file info structure vffi.
  44  *      15-Feb-1998 Dimitrie Paun (dimi@cs.toronto.edu)
  45  *      Added this function to clean up the code.
  46  *
  47  *****************************************************************************/
  48 static void print_vffi_debug(const VS_FIXEDFILEINFO *vffi)
  49 {
  50     BOOL    versioned_printer = FALSE;
  51
  52     if((vffi->dwFileType == VFT_DLL) || (vffi->dwFileType == VFT_DRV))
  53     {
  54         if(vffi->dwFileSubtype == VFT2_DRV_VERSIONED_PRINTER)
  55             /* this is documented for newer w2k Drivers and up */
  56             versioned_printer = TRUE;
  57         else if( (vffi->dwFileSubtype == VFT2_DRV_PRINTER) &&
  58                  (vffi->dwFileVersionMS != vffi->dwProductVersionMS) &&
  59                  (vffi->dwFileVersionMS > 0) &&
  60                  (vffi->dwFileVersionMS <= 3) )
  61             /* found this on NT 3.51, NT4.0 and old w2k Drivers */
  62             versioned_printer = TRUE;
  63     }
  64
  65     TRACE("structversion=%u.%u, ",
  66             HIWORD(vffi->dwStrucVersion),LOWORD(vffi->dwStrucVersion));
  67     if(versioned_printer)
  68     {
  69         WORD mode = LOWORD(vffi->dwFileVersionMS);
  70         WORD ver_rev = HIWORD(vffi->dwFileVersionLS);
  71         TRACE("fileversion=%u.%u.%u.%u (%s.major.minor.release), ",
  72             (vffi->dwFileVersionMS),
  73             HIBYTE(ver_rev), LOBYTE(ver_rev), LOWORD(vffi->dwFileVersionLS),
  74             (mode == 3) ? "Usermode" : ((mode <= 2) ? "Kernelmode" : "?") );
  75     }
  76     else
  77     {
  78         TRACE("fileversion=%u.%u.%u.%u, ",
  79             HIWORD(vffi->dwFileVersionMS),LOWORD(vffi->dwFileVersionMS),
  80             HIWORD(vffi->dwFileVersionLS),LOWORD(vffi->dwFileVersionLS));
  81     }
  82     TRACE("productversion=%u.%u.%u.%u\n",
  83           HIWORD(vffi->dwProductVersionMS),LOWORD(vffi->dwProductVersionMS),
  84           HIWORD(vffi->dwProductVersionLS),LOWORD(vffi->dwProductVersionLS));
  85
  86     TRACE("flagmask=0x%x, flags=0x%x %s%s%s%s%s%s\n",
  87           vffi->dwFileFlagsMask, vffi->dwFileFlags,
  88           (vffi->dwFileFlags & VS_FF_DEBUG) ? "DEBUG," : "",
  89           (vffi->dwFileFlags & VS_FF_PRERELEASE) ? "PRERELEASE," : "",
  90           (vffi->dwFileFlags & VS_FF_PATCHED) ? "PATCHED," : "",
  91           (vffi->dwFileFlags & VS_FF_PRIVATEBUILD) ? "PRIVATEBUILD," : "",
  92           (vffi->dwFileFlags & VS_FF_INFOINFERRED) ? "INFOINFERRED," : "",
  93           (vffi->dwFileFlags & VS_FF_SPECIALBUILD) ? "SPECIALBUILD," : "");
  94
  95     TRACE("(");
  96
  97     TRACE("OS=0x%x.0x%x ", HIWORD(vffi->dwFileOS), LOWORD(vffi->dwFileOS));
  98
  99     switch (vffi->dwFileOS&0xFFFF0000)
 100     {
 101     case VOS_DOS:TRACE("DOS,");break;
 102     case VOS_OS216:TRACE("OS/2-16,");break;
 103     case VOS_OS232:TRACE("OS/2-32,");break;
 104     case VOS_NT:TRACE("NT,");break;
 105     case VOS_UNKNOWN:
 106     default:
 107         TRACE("UNKNOWN(0x%x),",vffi->dwFileOS&0xFFFF0000);break;
 108     }
 109
 110     switch (LOWORD(vffi->dwFileOS))
 111     {
 112     case VOS__BASE:TRACE("BASE");break;
 113     case VOS__WINDOWS16:TRACE("WIN16");break;
 114     case VOS__WINDOWS32:TRACE("WIN32");break;
 115     case VOS__PM16:TRACE("PM16");break;
 116     case VOS__PM32:TRACE("PM32");break;
 117     default:
 118         TRACE("UNKNOWN(0x%x)",LOWORD(vffi->dwFileOS));break;
 119     }
 120
 121     TRACE(")\n");
 122
 123     switch (vffi->dwFileType)
 124     {
 125     case VFT_APP:TRACE("filetype=APP");break;
 126     case VFT_DLL:
 127         TRACE("filetype=DLL");
 128         if(vffi->dwFileSubtype != 0)
 129         {
 130             if(versioned_printer) /* NT3.x/NT4.0 or old w2k Driver  */
 131                 TRACE(",PRINTER");
 132             TRACE(" (subtype=0x%x)", vffi->dwFileSubtype);
 133         }
 134         break;
 135     case VFT_DRV:
 136         TRACE("filetype=DRV,");
 137         switch(vffi->dwFileSubtype)
 138         {
 139         case VFT2_DRV_PRINTER:TRACE("PRINTER");break;
 140         case VFT2_DRV_KEYBOARD:TRACE("KEYBOARD");break;
 141         case VFT2_DRV_LANGUAGE:TRACE("LANGUAGE");break;
 142         case VFT2_DRV_DISPLAY:TRACE("DISPLAY");break;
 143         case VFT2_DRV_MOUSE:TRACE("MOUSE");break;
 144         case VFT2_DRV_NETWORK:TRACE("NETWORK");break;
 145         case VFT2_DRV_SYSTEM:TRACE("SYSTEM");break;
 146         case VFT2_DRV_INSTALLABLE:TRACE("INSTALLABLE");break;
 147         case VFT2_DRV_SOUND:TRACE("SOUND");break;
 148         case VFT2_DRV_COMM:TRACE("COMM");break;
 149         case VFT2_DRV_INPUTMETHOD:TRACE("INPUTMETHOD");break;
 150         case VFT2_DRV_VERSIONED_PRINTER:TRACE("VERSIONED_PRINTER");break;
 151         case VFT2_UNKNOWN:
 152         default:
 153             TRACE("UNKNOWN(0x%x)",vffi->dwFileSubtype);break;
 154         }
 155         break;
 156     case VFT_FONT:
 157         TRACE("filetype=FONT,");
 158         switch (vffi->dwFileSubtype)
 159         {
 160         case VFT2_FONT_RASTER:TRACE("RASTER");break;
 161         case VFT2_FONT_VECTOR:TRACE("VECTOR");break;
 162         case VFT2_FONT_TRUETYPE:TRACE("TRUETYPE");break;
 163         default:TRACE("UNKNOWN(0x%x)",vffi->dwFileSubtype);break;
 164         }
 165         break;
 166     case VFT_VXD:TRACE("filetype=VXD");break;
 167     case VFT_STATIC_LIB:TRACE("filetype=STATIC_LIB");break;
 168     case VFT_UNKNOWN:
 169     default:
 170         TRACE("filetype=Unknown(0x%x)",vffi->dwFileType);break;
 171     }
 172
 173     TRACE("\n");
 174     TRACE("filedate=0x%x.0x%x\n",vffi->dwFileDateMS,vffi->dwFileDateLS);
 175 }
 176
 177 /***********************************************************************
 178  * Version Info Structure
 179  */
 180
 181 typedef struct
 182 {
 183     WORD  wLength;
 184     WORD  wValueLength;
 185     CHAR  szKey[1];
 186 #if 0   /* variable length structure */
 187     /* DWORD aligned */
 188     BYTE  Value[];
 189     /* DWORD aligned */
 190     VS_VERSION_INFO_STRUCT16 Children[];
 191 #endif
 192 } VS_VERSION_INFO_STRUCT16;
 193
 194 typedef struct
 195 {
 196     WORD  wLength;
 197     WORD  wValueLength;
 198     WORD  wType;
 199     WCHAR szKey[1];
 200 #if 0   /* variable length structure */
 201     /* DWORD aligned */
 202     BYTE  Value[];
 203     /* DWORD aligned */
 204     VS_VERSION_INFO_STRUCT32 Children[];
 205 #endif
 206 } VS_VERSION_INFO_STRUCT32;
 207
 208 #define VersionInfoIs16( ver ) \
 209     ( ((const VS_VERSION_INFO_STRUCT16 *)ver)->szKey[0] >= ' ' )
 210
 211 #define DWORD_ALIGN( base, ptr ) \
 212     ( (LPBYTE)(base) + ((((LPBYTE)(ptr) - (LPBYTE)(base)) + 3) & ~3) )
 213
 214 #define VersionInfo16_Value( ver )  \
 215     DWORD_ALIGN( (ver), (ver)->szKey + strlen((ver)->szKey) + 1 )
 216 #define VersionInfo32_Value( ver )  \
 217     DWORD_ALIGN( (ver), (ver)->szKey + strlenW((ver)->szKey) + 1 )
 218
 219 #define VersionInfo16_Children( ver )  \
 220     (const VS_VERSION_INFO_STRUCT16 *)( VersionInfo16_Value( ver ) + \
 221                            ( ( (ver)->wValueLength + 3 ) & ~3 ) )
 222 #define VersionInfo32_Children( ver )  \
 223     (const VS_VERSION_INFO_STRUCT32 *)( VersionInfo32_Value( ver ) + \
 224                            ( ( (ver)->wValueLength * \
 225                                ((ver)->wType? 2 : 1) + 3 ) & ~3 ) )
 226
 227 #define VersionInfo16_Next( ver ) \
 228     (VS_VERSION_INFO_STRUCT16 *)( (LPBYTE)ver + (((ver)->wLength + 3) & ~3) )
 229 #define VersionInfo32_Next( ver ) \
 230     (VS_VERSION_INFO_STRUCT32 *)( (LPBYTE)ver + (((ver)->wLength + 3) & ~3) )
 231
 232 /***********************************************************************
 233  *           VERSION_GetFileVersionInfo_PE             [internal]
 234  *
 235  *    NOTE: returns size of the PE VERSION resource or 0xFFFFFFFF
 236  *    in the case the file is a PE module, but VERSION_INFO not found.
 237  */
 238 static DWORD VERSION_GetFileVersionInfo_PE( LPCWSTR filename, DWORD datasize, LPVOID data )
 239 {
 240     const VS_FIXEDFILEINFO *vffi;
 241     DWORD len;
 242     BYTE *buf;
 243     HMODULE hModule;
 244     HRSRC hRsrc;
 245     HGLOBAL hMem;
 246
 247     TRACE("%s\n", debugstr_w(filename));
 248
 249     hModule = GetModuleHandleW(filename);
 250     if(!hModule)
 251         hModule = LoadLibraryExW(filename, 0, LOAD_LIBRARY_AS_DATAFILE);
 252     else
 253         hModule = LoadLibraryExW(filename, 0, 0);
 254     if(!hModule)
 255     {
 256         WARN("Could not load %s\n", debugstr_w(filename));
 257         return 0;
 258     }
 259     hRsrc = FindResourceW(hModule,
 260                           MAKEINTRESOURCEW(VS_VERSION_INFO),
 261                           MAKEINTRESOURCEW(VS_FILE_INFO));
 262     if(!hRsrc)
 263     {
 264         WARN("Could not find VS_VERSION_INFO in %s\n", debugstr_w(filename));
 265         FreeLibrary(hModule);
 266         return 0xFFFFFFFF;
 267     }
 268     len = SizeofResource(hModule, hRsrc);
 269     hMem = LoadResource(hModule, hRsrc);
 270     if(!hMem)
 271     {
 272         WARN("Could not load VS_VERSION_INFO from %s\n", debugstr_w(filename));
 273         FreeLibrary(hModule);
 274         return 0xFFFFFFFF;
 275     }
 276     buf = LockResource(hMem);
 277
 278     vffi = (VS_FIXEDFILEINFO *)VersionInfo32_Value( (VS_VERSION_INFO_STRUCT32 *)buf );
 279
 280     if ( vffi->dwSignature != VS_FFI_SIGNATURE )
 281     {
 282         WARN("vffi->dwSignature is 0x%08x, but not 0x%08lx!\n",
 283                    vffi->dwSignature, VS_FFI_SIGNATURE );
 284         len = 0xFFFFFFFF;
 285         goto END;
 286     }
 287
 288     if ( TRACE_ON(ver) )
 289         print_vffi_debug( vffi );
 290
 291     if(data)
 292     {
 293         if(datasize < len)
 294             len = datasize; /* truncate data */
 295         if(len)
 296             memcpy(data, buf, len);
 297         else
 298             len = 0xFFFFFFFF;
 299     }
 300 END:
 301     FreeResource(hMem);
 302     FreeLibrary(hModule);
 303
 304     return len;
 305 }
 306
 307 /***********************************************************************
 308  *           VERSION_GetFileVersionInfo_16             [internal]
 309  *
 310  *    NOTE: returns size of the 16-bit VERSION resource or 0xFFFFFFFF
 311  *    in the case the file exists, but VERSION_INFO not found.
 312  */
 313 static DWORD VERSION_GetFileVersionInfo_16( LPCSTR filename, DWORD datasize, LPVOID data )
 314 {
 315     const VS_FIXEDFILEINFO *vffi;
 316     DWORD len, offset;
 317     BYTE *buf;
 318     HMODULE16 hModule;
 319     HRSRC16 hRsrc;
 320     HGLOBAL16 hMem;
 321     char dllname[20], owner[20], *p;
 322     const char *basename;
 323     BOOL is_builtin = FALSE;
 324
 325     TRACE("%s\n", debugstr_a(filename));
 326
 327     /* strip path information */
 328
 329     basename = filename;
 330     if (basename[0] && basename[1] == ':') basename += 2;  /* strip drive specification */
 331     if ((p = strrchr( basename, '\\' ))) basename = p + 1;
 332     if ((p = strrchr( basename, '/' ))) basename = p + 1;
 333
 334     if (strlen(basename) < sizeof(dllname)-4)
 335     {
 336         int file_exists;
 337
 338         strcpy( dllname, basename );
 339         p = strrchr( dllname, '.' );
 340         if (!p) strcat( dllname, ".dll" );
 341         for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
 342
 343         if (wine_dll_get_owner( dllname, owner, sizeof(owner), &file_exists ) == 0)
 344             is_builtin = TRUE;
 345     }
 346
 347     /* first try without loading a 16-bit module */
 348     if (is_builtin)
 349         len = 0;
 350     else
 351         len = GetFileResourceSize16( filename,
 352                                      MAKEINTRESOURCEA(VS_FILE_INFO),
 353                                      MAKEINTRESOURCEA(VS_VERSION_INFO),
 354                                      &offset );
 355     if (len)
 356     {
 357         if (!data) return len;
 358
 359         len = GetFileResource16( filename,
 360                                  MAKEINTRESOURCEA(VS_FILE_INFO),
 361                                  MAKEINTRESOURCEA(VS_VERSION_INFO),
 362                                  offset, datasize, data );
 363         if (len)
 364         {
 365             vffi = (VS_FIXEDFILEINFO *)VersionInfo16_Value( (VS_VERSION_INFO_STRUCT16 *)data );
 366
 367             if ( vffi->dwSignature == VS_FFI_SIGNATURE )
 368             {
 369                 if ( ((VS_VERSION_INFO_STRUCT16 *)data)->wLength < len )
 370                     len = ((VS_VERSION_INFO_STRUCT16 *)data)->wLength;
 371
 372                 if ( TRACE_ON(ver) )
 373                     print_vffi_debug( vffi );
 374
 375                 return len;
 376             }
 377         }
 378     }
 379
 380     /* this might be a builtin 16-bit module */
 381     hModule = LoadLibrary16(filename);
 382     if(hModule < 32)
 383     {
 384         WARN("Could not load %s\n", debugstr_a(filename));
 385         return 0;
 386     }
 387     hRsrc = FindResource16(hModule,
 388                           MAKEINTRESOURCEA(VS_VERSION_INFO),
 389                           MAKEINTRESOURCEA(VS_FILE_INFO));
 390     if(!hRsrc)
 391     {
 392         WARN("Could not find VS_VERSION_INFO in %s\n", debugstr_a(filename));
 393         FreeLibrary16(hModule);
 394         return 0xFFFFFFFF;
 395     }
 396     len = SizeofResource16(hModule, hRsrc);
 397     hMem = LoadResource16(hModule, hRsrc);
 398     if(!hMem)
 399     {
 400         WARN("Could not load VS_VERSION_INFO from %s\n", debugstr_a(filename));
 401         FreeLibrary16(hModule);
 402         return 0xFFFFFFFF;
 403     }
 404     buf = LockResource16(hMem);
 405
 406     if(!VersionInfoIs16(buf))
 407     {
 408         len = 0xFFFFFFFF;
 409         goto END;
 410     }
 411
 412     vffi = (VS_FIXEDFILEINFO *)VersionInfo16_Value( (VS_VERSION_INFO_STRUCT16 *)buf );
 413
 414     if ( vffi->dwSignature != VS_FFI_SIGNATURE )
 415     {
 416         WARN("vffi->dwSignature is 0x%08x, but not 0x%08lx!\n",
 417                    vffi->dwSignature, VS_FFI_SIGNATURE );
 418         len = 0xFFFFFFFF;
 419         goto END;
 420     }
 421
 422     if ( TRACE_ON(ver) )
 423         print_vffi_debug( vffi );
 424
 425     if(data)
 426     {
 427         if(datasize < len)
 428             len = datasize; /* truncate data */
 429         if(len)
 430             memcpy(data, buf, len);
 431         else
 432             len = 0xFFFFFFFF;
 433     }
 434 END:
 435     FreeResource16(hMem);
 436     FreeLibrary16(hModule);
 437
 438     return len;
 439 }
 440
 441 /***********************************************************************
 442  *           GetFileVersionInfoSizeW         [VERSION.@]
 443  */
 444 DWORD WINAPI GetFileVersionInfoSizeW( LPCWSTR filename, LPDWORD handle )
 445 {
 446     DWORD len;
 447
 448     TRACE("(%s,%p)\n", debugstr_w(filename), handle );
 449
 450     if (handle) *handle = 0;
 451
 452     if (!filename)
 453     {
 454         SetLastError(ERROR_INVALID_PARAMETER);
 455         return 0;
 456     }
 457     if (!*filename)
 458     {
 459         SetLastError(ERROR_BAD_PATHNAME);
 460         return 0;
 461     }
 462
 463     len = VERSION_GetFileVersionInfo_PE(filename, 0, NULL);
 464     /* 0xFFFFFFFF means: file is a PE module, but VERSION_INFO not found */
 465     if(len == 0xFFFFFFFF)
 466     {
 467         SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 468         return 0;
 469     }
 470
 471     if (!len)
 472     {
 473         LPSTR filenameA;
 474
 475         len = WideCharToMultiByte( CP_ACP, 0, filename, -1, NULL, 0, NULL, NULL );
 476         filenameA = HeapAlloc( GetProcessHeap(), 0, len );
 477         WideCharToMultiByte( CP_ACP, 0, filename, -1, filenameA, len, NULL, NULL );
 478
 479         len = VERSION_GetFileVersionInfo_16(filenameA, 0, NULL);
 480         HeapFree( GetProcessHeap(), 0, filenameA );
 481         /* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
 482         if (!len)
 483         {
 484             SetLastError(ERROR_FILE_NOT_FOUND);
 485             return 0;
 486         }
 487         if (len == 0xFFFFFFFF)
 488         {
 489             SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 490             return 0;
 491         }
 492
 493         /* We have a 16bit resource.
 494          *
 495          * XP/W2K/W2K3 uses a buffer which is more than the actual needed space:
 496          *
 497          * (info->wLength - sizeof(VS_FIXEDFILEINFO)) * 4
 498          *
 499          * This extra buffer is used for ANSI to Unicode conversions in W-Calls.
 500          * info->wLength should be the same as len. Currently it isn't but that
 501          * doesn't seem to be a problem (len is bigger than info->wLength).
 502          */
 503          len = (len - sizeof(VS_FIXEDFILEINFO)) * 4;
 504     }
 505     else
 506     {
 507         /* We have a 32bit resource.
 508          *
 509          * XP/W2K/W2K3 uses a buffer which is 2 times the actual needed space + 4 bytes "FE2X"
 510          * This extra buffer is used for Unicode to ANSI conversions in A-Calls
 511          */
 512          len = (len * 2) + 4;
 513     }
 514
 515     SetLastError(0);
 516     return len;
 517 }
 518
 519 /***********************************************************************
 520  *           GetFileVersionInfoSizeA         [VERSION.@]
 521  */
 522 DWORD WINAPI GetFileVersionInfoSizeA( LPCSTR filename, LPDWORD handle )
 523 {
 524     UNICODE_STRING filenameW;
 525     DWORD retval;
 526
 527     TRACE("(%s,%p)\n", debugstr_a(filename), handle );
 528
 529     if(filename)
 530         RtlCreateUnicodeStringFromAsciiz(&filenameW, filename);
 531     else
 532         filenameW.Buffer = NULL;
 533
 534     retval = GetFileVersionInfoSizeW(filenameW.Buffer, handle);
 535
 536     RtlFreeUnicodeString(&filenameW);
 537
 538     return retval;
 539 }
 540
 541 /***********************************************************************
 542  *           GetFileVersionInfoW             [VERSION.@]
 543  */
 544 BOOL WINAPI GetFileVersionInfoW( LPCWSTR filename, DWORD handle,
 545                                     DWORD datasize, LPVOID data )
 546 {
 547     DWORD len;
 548     VS_VERSION_INFO_STRUCT32* vvis = (VS_VERSION_INFO_STRUCT32*)data;
 549
 550     TRACE("(%s,%d,size=%d,data=%p)\n",
 551                 debugstr_w(filename), handle, datasize, data );
 552
 553     if (!data)
 554     {
 555         SetLastError(ERROR_INVALID_DATA);
 556         return FALSE;
 557     }
 558     len = VERSION_GetFileVersionInfo_PE(filename, datasize, data);
 559     /* 0xFFFFFFFF means: file is a PE module, but VERSION_INFO not found */
 560     if (len == 0xFFFFFFFF)
 561     {
 562         SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 563         return FALSE;
 564     }
 565
 566     if (!len)
 567     {
 568         LPSTR filenameA;
 569
 570         len = WideCharToMultiByte( CP_ACP, 0, filename, -1, NULL, 0, NULL, NULL );
 571         filenameA = HeapAlloc( GetProcessHeap(), 0, len );
 572         WideCharToMultiByte( CP_ACP, 0, filename, -1, filenameA, len, NULL, NULL );
 573
 574         len = VERSION_GetFileVersionInfo_16(filenameA, datasize, data);
 575         HeapFree( GetProcessHeap(), 0, filenameA );
 576         /* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
 577         if (!len || len == 0xFFFFFFFF)
 578         {
 579             SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 580             return FALSE;
 581         }
 582         /* We have a 16bit resource. */
 583     }
 584     else
 585     {
 586         static const char signature[] = "FE2X";
 587         DWORD bufsize = vvis->wLength + strlen(signature);
 588         DWORD convbuf;
 589
 590         /* We have a 32bit resource.
 591          *
 592          * XP/W2K/W2K3 uses a buffer which is 2 times the actual needed space + 4 bytes "FE2X"
 593          * This extra buffer is used for Unicode to ANSI conversions in A-Calls
 594          */
 595
 596         /* information is truncated to datasize bytes */
 597         if (datasize >= bufsize)
 598         {
 599             convbuf = datasize - vvis->wLength;
 600             memcpy( ((char*)(data))+vvis->wLength, signature, convbuf > 4 ? 4 : convbuf );
 601         }
 602     }
 603
 604     SetLastError(0);
 605     return TRUE;
 606 }
 607
 608 /***********************************************************************
 609  *           GetFileVersionInfoA             [VERSION.@]
 610  */
 611 BOOL WINAPI GetFileVersionInfoA( LPCSTR filename, DWORD handle,
 612                                     DWORD datasize, LPVOID data )
 613 {
 614     UNICODE_STRING filenameW;
 615     BOOL retval;
 616
 617     TRACE("(%s,%d,size=%d,data=%p)\n",
 618                 debugstr_a(filename), handle, datasize, data );
 619
 620     if(filename)
 621         RtlCreateUnicodeStringFromAsciiz(&filenameW, filename);
 622     else
 623         filenameW.Buffer = NULL;
 624
 625     retval = GetFileVersionInfoW(filenameW.Buffer, handle, datasize, data);
 626
 627     RtlFreeUnicodeString(&filenameW);
 628
 629     return retval;
 630 }
 631
 632 /***********************************************************************
 633  *           VersionInfo16_FindChild             [internal]
 634  */
 635 static const VS_VERSION_INFO_STRUCT16 *VersionInfo16_FindChild( const VS_VERSION_INFO_STRUCT16 *info,
 636                                             LPCSTR szKey, UINT cbKey )
 637 {
 638     const VS_VERSION_INFO_STRUCT16 *child = VersionInfo16_Children( info );
 639
 640     while ((char *)child < (char *)info + info->wLength )
 641     {
 642         if (!strncasecmp( child->szKey, szKey, cbKey ) && !child->szKey[cbKey])
 643             return child;
 644
 645         if (!(child->wLength)) return NULL;
 646         child = VersionInfo16_Next( child );
 647     }
 648
 649     return NULL;
 650 }
 651
 652 /***********************************************************************
 653  *           VersionInfo32_FindChild             [internal]
 654  */
 655 static const VS_VERSION_INFO_STRUCT32 *VersionInfo32_FindChild( const VS_VERSION_INFO_STRUCT32 *info,
 656                                             LPCWSTR szKey, UINT cbKey )
 657 {
 658     const VS_VERSION_INFO_STRUCT32 *child = VersionInfo32_Children( info );
 659
 660     while ((char *)child < (char *)info + info->wLength )
 661     {
 662         if (!strncmpiW( child->szKey, szKey, cbKey ) && !child->szKey[cbKey])
 663             return child;
 664
 665         child = VersionInfo32_Next( child );
 666     }
 667
 668     return NULL;
 669 }
 670
 671 /***********************************************************************
 672  *           VersionInfo16_QueryValue              [internal]
 673  *
 674  *    Gets a value from a 16-bit NE resource
 675  */
 676 static BOOL WINAPI VersionInfo16_QueryValue( const VS_VERSION_INFO_STRUCT16 *info, LPCSTR lpSubBlock,
 677                                LPVOID *lplpBuffer, UINT *puLen )
 678 {
 679     while ( *lpSubBlock )
 680     {
 681         /* Find next path component */
 682         LPCSTR lpNextSlash;
 683         for ( lpNextSlash = lpSubBlock; *lpNextSlash; lpNextSlash++ )
 684             if ( *lpNextSlash == '\\' )
 685                 break;
 686
 687         /* Skip empty components */
 688         if ( lpNextSlash == lpSubBlock )
 689         {
 690             lpSubBlock++;
 691             continue;
 692         }
 693
 694         /* We have a non-empty component: search info for key */
 695         info = VersionInfo16_FindChild( info, lpSubBlock, lpNextSlash-lpSubBlock );
 696         if ( !info )
 697         {
 698             if (puLen) *puLen = 0 ;
 699             SetLastError( ERROR_RESOURCE_TYPE_NOT_FOUND );
 700             return FALSE;
 701         }
 702
 703         /* Skip path component */
 704         lpSubBlock = lpNextSlash;
 705     }
 706
 707     /* Return value */
 708     *lplpBuffer = VersionInfo16_Value( info );
 709     if (puLen)
 710         *puLen = info->wValueLength;
 711
 712     return TRUE;
 713 }
 714
 715 /***********************************************************************
 716  *           VersionInfo32_QueryValue              [internal]
 717  *
 718  *    Gets a value from a 32-bit PE resource
 719  */
 720 static BOOL WINAPI VersionInfo32_QueryValue( const VS_VERSION_INFO_STRUCT32 *info, LPCWSTR lpSubBlock,
 721                                LPVOID *lplpBuffer, UINT *puLen )
 722 {
 723     TRACE("lpSubBlock : (%s)\n", debugstr_w(lpSubBlock));
 724
 725     while ( *lpSubBlock )
 726     {
 727         /* Find next path component */
 728         LPCWSTR lpNextSlash;
 729         for ( lpNextSlash = lpSubBlock; *lpNextSlash; lpNextSlash++ )
 730             if ( *lpNextSlash == '\\' )
 731                 break;
 732
 733         /* Skip empty components */
 734         if ( lpNextSlash == lpSubBlock )
 735         {
 736             lpSubBlock++;
 737             continue;
 738         }
 739
 740         /* We have a non-empty component: search info for key */
 741         info = VersionInfo32_FindChild( info, lpSubBlock, lpNextSlash-lpSubBlock );
 742         if ( !info )
 743         {
 744             if (puLen) *puLen = 0 ;
 745             SetLastError( ERROR_RESOURCE_TYPE_NOT_FOUND );
 746             return FALSE;
 747         }
 748
 749         /* Skip path component */
 750         lpSubBlock = lpNextSlash;
 751     }
 752
 753     /* Return value */
 754     *lplpBuffer = VersionInfo32_Value( info );
 755     if (puLen)
 756         *puLen = info->wValueLength;
 757
 758     return TRUE;
 759 }
 760
 761 /***********************************************************************
 762  *           VerQueryValueA              [VERSION.@]
 763  */
 764 BOOL WINAPI VerQueryValueA( LPCVOID pBlock, LPCSTR lpSubBlock,
 765                                LPVOID *lplpBuffer, UINT *puLen )
 766 {
 767     static const char rootA[] = "\\";
 768     static const char varfileinfoA[] = "\\VarFileInfo\\Translation";
 769     const VS_VERSION_INFO_STRUCT16 *info = (const VS_VERSION_INFO_STRUCT16 *)pBlock;
 770
 771     TRACE("(%p,%s,%p,%p)\n",
 772                 pBlock, debugstr_a(lpSubBlock), lplpBuffer, puLen );
 773
 774      if (!pBlock)
 775         return FALSE;
 776
 777     if ( !VersionInfoIs16( info ) )
 778     {
 779         BOOL ret;
 780         INT len;
 781         LPWSTR lpSubBlockW;
 782
 783         len  = MultiByteToWideChar(CP_ACP, 0, lpSubBlock, -1, NULL, 0);
 784         lpSubBlockW = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 785
 786         if (!lpSubBlockW)
 787             return FALSE;
 788
 789         MultiByteToWideChar(CP_ACP, 0, lpSubBlock, -1, lpSubBlockW, len);
 790
 791         ret = VersionInfo32_QueryValue(pBlock, lpSubBlockW, lplpBuffer, puLen);
 792
 793         HeapFree(GetProcessHeap(), 0, lpSubBlockW);
 794
 795         if (ret && strcasecmp( lpSubBlock, rootA ) && strcasecmp( lpSubBlock, varfileinfoA ))
 796         {
 797             /* Set lpBuffer so it points to the 'empty' area where we store
 798              * the converted strings
 799              */
 800             LPSTR lpBufferA = (LPSTR)pBlock + info->wLength + 4;
 801             DWORD pos = (LPCSTR)*lplpBuffer - (LPCSTR)pBlock;
 802
 803             len = WideCharToMultiByte(CP_ACP, 0, (LPCWSTR)*lplpBuffer, -1,
 804                                       lpBufferA + pos, info->wLength - pos, NULL, NULL);
 805             *lplpBuffer = lpBufferA + pos;
 806             *puLen = len;
 807         }
 808         return ret;
 809     }
 810
 811     return VersionInfo16_QueryValue(info, lpSubBlock, lplpBuffer, puLen);
 812 }
 813
 814 /***********************************************************************
 815  *           VerQueryValueW              [VERSION.@]
 816  */
 817 BOOL WINAPI VerQueryValueW( LPCVOID pBlock, LPCWSTR lpSubBlock,
 818                                LPVOID *lplpBuffer, UINT *puLen )
 819 {
 820     static const WCHAR rootW[] = { '\\', 0 };
 821     static const WCHAR varfileinfoW[] = { '\\','V','a','r','F','i','l','e','I','n','f','o',
 822                                           '\\','T','r','a','n','s','l','a','t','i','o','n', 0 };
 823
 824     const VS_VERSION_INFO_STRUCT32 *info = (const VS_VERSION_INFO_STRUCT32 *)pBlock;
 825
 826     TRACE("(%p,%s,%p,%p)\n",
 827                 pBlock, debugstr_w(lpSubBlock), lplpBuffer, puLen );
 828
 829     if (!pBlock)
 830         return FALSE;
 831
 832     if ( VersionInfoIs16( info ) )
 833     {
 834         BOOL ret;
 835         int len;
 836         LPSTR lpSubBlockA;
 837
 838         len = WideCharToMultiByte(CP_ACP, 0, lpSubBlock, -1, NULL, 0, NULL, NULL);
 839         lpSubBlockA = HeapAlloc(GetProcessHeap(), 0, len * sizeof(char));
 840
 841         if (!lpSubBlockA)
 842             return FALSE;
 843
 844         WideCharToMultiByte(CP_ACP, 0, lpSubBlock, -1, lpSubBlockA, len, NULL, NULL);
 845
 846         ret = VersionInfo16_QueryValue(pBlock, lpSubBlockA, lplpBuffer, puLen);
 847
 848         HeapFree(GetProcessHeap(), 0, lpSubBlockA);
 849
 850         if (ret && strcmpiW( lpSubBlock, rootW ) && strcmpiW( lpSubBlock, varfileinfoW ))
 851         {
 852             /* Set lpBuffer so it points to the 'empty' area where we store
 853              * the converted strings
 854              */
 855             LPWSTR lpBufferW = (LPWSTR)((LPSTR)pBlock + info->wLength);
 856             DWORD pos = (LPCSTR)*lplpBuffer - (LPCSTR)pBlock;
 857             DWORD max = (info->wLength - sizeof(VS_FIXEDFILEINFO)) * 4 - info->wLength;
 858
 859             len = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)*lplpBuffer, -1,
 860                                       lpBufferW + pos, max/sizeof(WCHAR) - pos );
 861             *lplpBuffer = lpBufferW + pos;
 862             *puLen = len;
 863         }
 864         return ret;
 865     }
 866
 867     return VersionInfo32_QueryValue(info, lpSubBlock, lplpBuffer, puLen);
 868 }