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  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  *
  22  * TODO
  23  *   o Verify VerQueryValue()
  24  */
  25
  26 #include <stdarg.h>
  27 #include <stdlib.h>
  28 #include <string.h>
  29
  30 #include "windef.h"
  31 #include "winbase.h"
  32 #include "winreg.h"
  33 #include "winver.h"
  34 #include "winternl.h"
  35 #include "wine/winuser16.h"
  36 #include "wine/unicode.h"
  37 #include "winerror.h"
  38 #include "wine/debug.h"
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(ver);
  41
  42 /******************************************************************************
  43  *
  44  *   This function will print via standard TRACE, debug info regarding
  45  *   the file info structure vffi.
  46  *      15-Feb-1998 Dimitrie Paun (dimi@cs.toronto.edu)
  47  *      Added this function to clean up the code.
  48  *
  49  *****************************************************************************/
  50 static void print_vffi_debug(VS_FIXEDFILEINFO *vffi)
  51 {
  52     TRACE("structversion=%u.%u, fileversion=%u.%u.%u.%u, productversion=%u.%u.%u.%u, flagmask=0x%lx, flags=%s%s%s%s%s%s\n",
  53           HIWORD(vffi->dwStrucVersion),LOWORD(vffi->dwStrucVersion),
  54           HIWORD(vffi->dwFileVersionMS),LOWORD(vffi->dwFileVersionMS),
  55           HIWORD(vffi->dwFileVersionLS),LOWORD(vffi->dwFileVersionLS),
  56           HIWORD(vffi->dwProductVersionMS),LOWORD(vffi->dwProductVersionMS),
  57           HIWORD(vffi->dwProductVersionLS),LOWORD(vffi->dwProductVersionLS),
  58           vffi->dwFileFlagsMask,
  59           (vffi->dwFileFlags & VS_FF_DEBUG) ? "DEBUG," : "",
  60           (vffi->dwFileFlags & VS_FF_PRERELEASE) ? "PRERELEASE," : "",
  61           (vffi->dwFileFlags & VS_FF_PATCHED) ? "PATCHED," : "",
  62           (vffi->dwFileFlags & VS_FF_PRIVATEBUILD) ? "PRIVATEBUILD," : "",
  63           (vffi->dwFileFlags & VS_FF_INFOINFERRED) ? "INFOINFERRED," : "",
  64           (vffi->dwFileFlags & VS_FF_SPECIALBUILD) ? "SPECIALBUILD," : "");
  65
  66     TRACE("(");
  67
  68     TRACE("OS=0x%x.0x%x ", HIWORD(vffi->dwFileOS), LOWORD(vffi->dwFileOS));
  69
  70     switch (vffi->dwFileOS&0xFFFF0000)
  71     {
  72     case VOS_DOS:TRACE("DOS,");break;
  73     case VOS_OS216:TRACE("OS/2-16,");break;
  74     case VOS_OS232:TRACE("OS/2-32,");break;
  75     case VOS_NT:TRACE("NT,");break;
  76     case VOS_UNKNOWN:
  77     default:
  78         TRACE("UNKNOWN(0x%lx),",vffi->dwFileOS&0xFFFF0000);break;
  79     }
  80
  81     switch (LOWORD(vffi->dwFileOS))
  82     {
  83     case VOS__BASE:TRACE("BASE");break;
  84     case VOS__WINDOWS16:TRACE("WIN16");break;
  85     case VOS__WINDOWS32:TRACE("WIN32");break;
  86     case VOS__PM16:TRACE("PM16");break;
  87     case VOS__PM32:TRACE("PM32");break;
  88     default:
  89         TRACE("UNKNOWN(0x%x)",LOWORD(vffi->dwFileOS));break;
  90     }
  91
  92     TRACE(")\n");
  93
  94     switch (vffi->dwFileType)
  95     {
  96     case VFT_APP:TRACE("filetype=APP");break;
  97     case VFT_DLL:TRACE("filetype=DLL");break;
  98     case VFT_DRV:
  99         TRACE("filetype=DRV,");
 100         switch(vffi->dwFileSubtype)
 101         {
 102         case VFT2_DRV_PRINTER:TRACE("PRINTER");break;
 103         case VFT2_DRV_KEYBOARD:TRACE("KEYBOARD");break;
 104         case VFT2_DRV_LANGUAGE:TRACE("LANGUAGE");break;
 105         case VFT2_DRV_DISPLAY:TRACE("DISPLAY");break;
 106         case VFT2_DRV_MOUSE:TRACE("MOUSE");break;
 107         case VFT2_DRV_NETWORK:TRACE("NETWORK");break;
 108         case VFT2_DRV_SYSTEM:TRACE("SYSTEM");break;
 109         case VFT2_DRV_INSTALLABLE:TRACE("INSTALLABLE");break;
 110         case VFT2_DRV_SOUND:TRACE("SOUND");break;
 111         case VFT2_DRV_COMM:TRACE("COMM");break;
 112         case VFT2_DRV_INPUTMETHOD:TRACE("INPUTMETHOD");break;
 113         case VFT2_UNKNOWN:
 114         default:
 115             TRACE("UNKNOWN(0x%lx)",vffi->dwFileSubtype);break;
 116         }
 117         break;
 118     case VFT_FONT:
 119         TRACE("filetype=FONT,");
 120         switch (vffi->dwFileSubtype)
 121         {
 122         case VFT2_FONT_RASTER:TRACE("RASTER");break;
 123         case VFT2_FONT_VECTOR:TRACE("VECTOR");break;
 124         case VFT2_FONT_TRUETYPE:TRACE("TRUETYPE");break;
 125         default:TRACE("UNKNOWN(0x%lx)",vffi->dwFileSubtype);break;
 126         }
 127         break;
 128     case VFT_VXD:TRACE("filetype=VXD");break;
 129     case VFT_STATIC_LIB:TRACE("filetype=STATIC_LIB");break;
 130     case VFT_UNKNOWN:
 131     default:
 132         TRACE("filetype=Unknown(0x%lx)",vffi->dwFileType);break;
 133     }
 134
 135     TRACE("\n");
 136     TRACE("filedate=0x%lx.0x%lx\n",vffi->dwFileDateMS,vffi->dwFileDateLS);
 137 }
 138
 139 /***********************************************************************
 140  * Version Info Structure
 141  */
 142
 143 typedef struct
 144 {
 145     WORD  wLength;
 146     WORD  wValueLength;
 147     CHAR  szKey[1];
 148 #if 0   /* variable length structure */
 149     /* DWORD aligned */
 150     BYTE  Value[];
 151     /* DWORD aligned */
 152     VS_VERSION_INFO_STRUCT16 Children[];
 153 #endif
 154 } VS_VERSION_INFO_STRUCT16;
 155
 156 typedef struct
 157 {
 158     WORD  wLength;
 159     WORD  wValueLength;
 160     WORD  wType;
 161     WCHAR szKey[1];
 162 #if 0   /* variable length structure */
 163     /* DWORD aligned */
 164     BYTE  Value[];
 165     /* DWORD aligned */
 166     VS_VERSION_INFO_STRUCT32 Children[];
 167 #endif
 168 } VS_VERSION_INFO_STRUCT32;
 169
 170 #define VersionInfoIs16( ver ) \
 171     ( ((VS_VERSION_INFO_STRUCT16 *)ver)->szKey[0] >= ' ' )
 172
 173 #define DWORD_ALIGN( base, ptr ) \
 174     ( (LPBYTE)(base) + ((((LPBYTE)(ptr) - (LPBYTE)(base)) + 3) & ~3) )
 175
 176 #define VersionInfo16_Value( ver )  \
 177     DWORD_ALIGN( (ver), (ver)->szKey + strlen((ver)->szKey) + 1 )
 178 #define VersionInfo32_Value( ver )  \
 179     DWORD_ALIGN( (ver), (ver)->szKey + strlenW((ver)->szKey) + 1 )
 180
 181 #define VersionInfo16_Children( ver )  \
 182     (VS_VERSION_INFO_STRUCT16 *)( VersionInfo16_Value( ver ) + \
 183                            ( ( (ver)->wValueLength + 3 ) & ~3 ) )
 184 #define VersionInfo32_Children( ver )  \
 185     (VS_VERSION_INFO_STRUCT32 *)( VersionInfo32_Value( ver ) + \
 186                            ( ( (ver)->wValueLength * \
 187                                ((ver)->wType? 2 : 1) + 3 ) & ~3 ) )
 188
 189 #define VersionInfo16_Next( ver ) \
 190     (VS_VERSION_INFO_STRUCT16 *)( (LPBYTE)ver + (((ver)->wLength + 3) & ~3) )
 191 #define VersionInfo32_Next( ver ) \
 192     (VS_VERSION_INFO_STRUCT32 *)( (LPBYTE)ver + (((ver)->wLength + 3) & ~3) )
 193
 194 /***********************************************************************
 195  *           ConvertVersionInfo32To16        [internal]
 196  */
 197 static void ConvertVersionInfo32To16( VS_VERSION_INFO_STRUCT32 *info32,
 198                                VS_VERSION_INFO_STRUCT16 *info16 )
 199 {
 200     /* Copy data onto local stack to prevent overwrites */
 201     WORD wLength = info32->wLength;
 202     WORD wValueLength = info32->wValueLength;
 203     WORD wType = info32->wType;
 204     LPBYTE lpValue = VersionInfo32_Value( info32 );
 205     VS_VERSION_INFO_STRUCT32 *child32 = VersionInfo32_Children( info32 );
 206     VS_VERSION_INFO_STRUCT16 *child16;
 207
 208     TRACE("Converting %p to %p\n", info32, info16 );
 209     TRACE("wLength %d, wValueLength %d, wType %d, value %p, child %p\n",
 210                 wLength, wValueLength, wType, lpValue, child32 );
 211
 212     /* Convert key */
 213     WideCharToMultiByte( CP_ACP, 0, info32->szKey, -1, info16->szKey, 0x7fffffff, NULL, NULL );
 214
 215     TRACE("Copied key from %p to %p: %s\n", info32->szKey, info16->szKey,
 216                 debugstr_a(info16->szKey) );
 217
 218     /* Convert value */
 219     if ( wValueLength == 0 )
 220     {
 221         info16->wValueLength = 0;
 222         TRACE("No value present\n" );
 223     }
 224     else if ( wType )
 225     {
 226         info16->wValueLength = WideCharToMultiByte( CP_ACP, 0, (LPCWSTR)lpValue, -1, NULL, 0, NULL, NULL );
 227         WideCharToMultiByte( CP_ACP, 0, (LPCWSTR)lpValue, -1,
 228                              VersionInfo16_Value( info16 ), info16->wValueLength, NULL, NULL );
 229
 230         TRACE("Copied value from %p to %p: %s\n", lpValue,
 231                     VersionInfo16_Value( info16 ),
 232                     debugstr_a(VersionInfo16_Value( info16 )) );
 233     }
 234     else
 235     {
 236         info16->wValueLength = wValueLength;
 237         memmove( VersionInfo16_Value( info16 ), lpValue, wValueLength );
 238
 239         TRACE("Copied value from %p to %p: %d bytes\n", lpValue,
 240                      VersionInfo16_Value( info16 ), wValueLength );
 241     }
 242
 243     /* Convert children */
 244     child16 = VersionInfo16_Children( info16 );
 245     while ( (DWORD)child32 < (DWORD)info32 + wLength && child32->wLength != 0 )
 246     {
 247         VS_VERSION_INFO_STRUCT32 *nextChild = VersionInfo32_Next( child32 );
 248
 249         ConvertVersionInfo32To16( child32, child16 );
 250
 251         child16 = VersionInfo16_Next( child16 );
 252         child32 = nextChild;
 253     }
 254
 255     /* Fixup length */
 256     info16->wLength = (DWORD)child16 - (DWORD)info16;
 257
 258     TRACE("Finished, length is %d (%p - %p)\n",
 259                 info16->wLength, info16, child16 );
 260 }
 261
 262 /***********************************************************************
 263  *           VERSION_GetFileVersionInfo_PE             [internal]
 264  *
 265  *    NOTE: returns size of the PE VERSION resource or 0xFFFFFFFF
 266  *    in the case the file is a PE module, but VERSION_INFO not found.
 267  */
 268 static DWORD VERSION_GetFileVersionInfo_PE( LPCWSTR filename, DWORD datasize, LPVOID data )
 269 {
 270     VS_FIXEDFILEINFO *vffi;
 271     DWORD len;
 272     BYTE *buf;
 273     HMODULE hModule;
 274     HRSRC hRsrc;
 275     HGLOBAL hMem;
 276
 277     TRACE("%s\n", debugstr_w(filename));
 278
 279     hModule = GetModuleHandleW(filename);
 280     if(!hModule)
 281         hModule = LoadLibraryExW(filename, 0, LOAD_LIBRARY_AS_DATAFILE);
 282     else
 283         hModule = LoadLibraryExW(filename, 0, 0);
 284     if(!hModule)
 285     {
 286         WARN("Could not load %s\n", debugstr_w(filename));
 287         return 0;
 288     }
 289     hRsrc = FindResourceW(hModule,
 290                           MAKEINTRESOURCEW(VS_VERSION_INFO),
 291                           MAKEINTRESOURCEW(VS_FILE_INFO));
 292     if(!hRsrc)
 293     {
 294         WARN("Could not find VS_VERSION_INFO in %s\n", debugstr_w(filename));
 295         FreeLibrary(hModule);
 296         return 0xFFFFFFFF;
 297     }
 298     len = SizeofResource(hModule, hRsrc);
 299     hMem = LoadResource(hModule, hRsrc);
 300     if(!hMem)
 301     {
 302         WARN("Could not load VS_VERSION_INFO from %s\n", debugstr_w(filename));
 303         FreeLibrary(hModule);
 304         return 0xFFFFFFFF;
 305     }
 306     buf = LockResource(hMem);
 307
 308     vffi = (VS_FIXEDFILEINFO *)VersionInfo32_Value( (VS_VERSION_INFO_STRUCT32 *)buf );
 309
 310     if ( vffi->dwSignature != VS_FFI_SIGNATURE )
 311     {
 312         WARN("vffi->dwSignature is 0x%08lx, but not 0x%08lx!\n",
 313                    vffi->dwSignature, VS_FFI_SIGNATURE );
 314         len = 0xFFFFFFFF;
 315         goto END;
 316     }
 317
 318     if ( TRACE_ON(ver) )
 319         print_vffi_debug( vffi );
 320
 321     if(data)
 322     {
 323         if(datasize < len)
 324             len = datasize; /* truncate data */
 325         if(len)
 326             memcpy(data, buf, len);
 327         else
 328             len = 0xFFFFFFFF;
 329     }
 330 END:
 331     FreeResource(hMem);
 332     FreeLibrary(hModule);
 333
 334     return len;
 335 }
 336
 337 /***********************************************************************
 338  *           VERSION_GetFileVersionInfo_16             [internal]
 339  *
 340  *    NOTE: returns size of the 16-bit VERSION resource or 0xFFFFFFFF
 341  *    in the case the file exists, but VERSION_INFO not found.
 342  */
 343 static DWORD VERSION_GetFileVersionInfo_16( LPCSTR filename, DWORD datasize, LPVOID data )
 344 {
 345     VS_FIXEDFILEINFO *vffi;
 346     DWORD len, offset;
 347     BYTE *buf;
 348     HMODULE16 hModule;
 349     HRSRC16 hRsrc;
 350     HGLOBAL16 hMem;
 351     char dllname[20], owner[20], *p;
 352     const char *basename;
 353     BOOL is_builtin = FALSE;
 354
 355     TRACE("%s\n", debugstr_a(filename));
 356
 357     /* strip path information */
 358
 359     basename = filename;
 360     if (basename[0] && basename[1] == ':') basename += 2;  /* strip drive specification */
 361     if ((p = strrchr( basename, '\\' ))) basename = p + 1;
 362     if ((p = strrchr( basename, '/' ))) basename = p + 1;
 363
 364     if (strlen(basename) < sizeof(dllname)-4)
 365     {
 366         int file_exists;
 367
 368         strcpy( dllname, basename );
 369         p = strrchr( dllname, '.' );
 370         if (!p) strcat( dllname, ".dll" );
 371         for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
 372
 373         if (wine_dll_get_owner( dllname, owner, sizeof(owner), &file_exists ) == 0)
 374             is_builtin = TRUE;
 375     }
 376
 377     /* first try without loading a 16-bit module */
 378     if (is_builtin)
 379         len = 0;
 380     else
 381         len = GetFileResourceSize16( filename,
 382                                      MAKEINTRESOURCEA(VS_FILE_INFO),
 383                                      MAKEINTRESOURCEA(VS_VERSION_INFO),
 384                                      &offset );
 385     if (len)
 386     {
 387         if (!data) return len;
 388
 389         len = GetFileResource16( filename,
 390                                  MAKEINTRESOURCEA(VS_FILE_INFO),
 391                                  MAKEINTRESOURCEA(VS_VERSION_INFO),
 392                                  offset, datasize, data );
 393         if (len)
 394         {
 395             vffi = (VS_FIXEDFILEINFO *)VersionInfo16_Value( (VS_VERSION_INFO_STRUCT16 *)data );
 396
 397             if ( vffi->dwSignature == VS_FFI_SIGNATURE )
 398             {
 399                 if ( ((VS_VERSION_INFO_STRUCT16 *)data)->wLength < len )
 400                     len = ((VS_VERSION_INFO_STRUCT16 *)data)->wLength;
 401
 402                 if ( TRACE_ON(ver) )
 403                     print_vffi_debug( vffi );
 404
 405                 return len;
 406             }
 407         }
 408     }
 409
 410     /* this might be a builtin 16-bit module */
 411     hModule = LoadLibrary16(filename);
 412     if(hModule < 32)
 413     {
 414         WARN("Could not load %s\n", debugstr_a(filename));
 415         return 0;
 416     }
 417     hRsrc = FindResource16(hModule,
 418                           MAKEINTRESOURCEA(VS_VERSION_INFO),
 419                           MAKEINTRESOURCEA(VS_FILE_INFO));
 420     if(!hRsrc)
 421     {
 422         WARN("Could not find VS_VERSION_INFO in %s\n", debugstr_a(filename));
 423         FreeLibrary16(hModule);
 424         return 0xFFFFFFFF;
 425     }
 426     len = SizeofResource16(hModule, hRsrc);
 427     hMem = LoadResource16(hModule, hRsrc);
 428     if(!hMem)
 429     {
 430         WARN("Could not load VS_VERSION_INFO from %s\n", debugstr_a(filename));
 431         FreeLibrary16(hModule);
 432         return 0xFFFFFFFF;
 433     }
 434     buf = LockResource16(hMem);
 435
 436     if(!VersionInfoIs16(buf))
 437     {
 438         len = 0xFFFFFFFF;
 439         goto END;
 440     }
 441
 442     vffi = (VS_FIXEDFILEINFO *)VersionInfo16_Value( (VS_VERSION_INFO_STRUCT16 *)buf );
 443
 444     if ( vffi->dwSignature != VS_FFI_SIGNATURE )
 445     {
 446         WARN("vffi->dwSignature is 0x%08lx, but not 0x%08lx!\n",
 447                    vffi->dwSignature, VS_FFI_SIGNATURE );
 448         len = 0xFFFFFFFF;
 449         goto END;
 450     }
 451
 452     if ( TRACE_ON(ver) )
 453         print_vffi_debug( vffi );
 454
 455     if(data)
 456     {
 457         if(datasize < len)
 458             len = datasize; /* truncate data */
 459         if(len)
 460             memcpy(data, buf, len);
 461         else
 462             len = 0xFFFFFFFF;
 463     }
 464 END:
 465     FreeResource16(hMem);
 466     FreeLibrary16(hModule);
 467
 468     return len;
 469 }
 470
 471 /***********************************************************************
 472  *           GetFileVersionInfoSizeW         [VERSION.@]
 473  */
 474 DWORD WINAPI GetFileVersionInfoSizeW( LPCWSTR filename, LPDWORD handle )
 475 {
 476     DWORD len;
 477
 478     TRACE("(%s,%p)\n", debugstr_w(filename), handle );
 479
 480     if (handle) *handle = 0;
 481
 482     if (!filename)
 483     {
 484         SetLastError(ERROR_INVALID_PARAMETER);
 485         return 0;
 486     }
 487     if (!*filename)
 488     {
 489         SetLastError(ERROR_BAD_PATHNAME);
 490         return 0;
 491     }
 492
 493     len = VERSION_GetFileVersionInfo_PE(filename, 0, NULL);
 494     /* 0xFFFFFFFF means: file is a PE module, but VERSION_INFO not found */
 495     if(len == 0xFFFFFFFF)
 496     {
 497         SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 498         return 0;
 499     }
 500
 501     if (!len)
 502     {
 503         LPSTR filenameA;
 504
 505         len = WideCharToMultiByte( CP_ACP, 0, filename, -1, NULL, 0, NULL, NULL );
 506         filenameA = HeapAlloc( GetProcessHeap(), 0, len );
 507         WideCharToMultiByte( CP_ACP, 0, filename, -1, filenameA, len, NULL, NULL );
 508
 509         len = VERSION_GetFileVersionInfo_16(filenameA, 0, NULL);
 510         HeapFree( GetProcessHeap(), 0, filenameA );
 511         /* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
 512         if (!len)
 513         {
 514             SetLastError(ERROR_FILE_NOT_FOUND);
 515             return 0;
 516         }
 517         if (len == 0xFFFFFFFF)
 518         {
 519             SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 520             return 0;
 521         }
 522     }
 523
 524     SetLastError(0);
 525     return len;
 526 }
 527
 528 /***********************************************************************
 529  *           GetFileVersionInfoSizeA         [VERSION.@]
 530  */
 531 DWORD WINAPI GetFileVersionInfoSizeA( LPCSTR filename, LPDWORD handle )
 532 {
 533     UNICODE_STRING filenameW;
 534     DWORD retval;
 535
 536     TRACE("(%s,%p)\n", debugstr_a(filename), handle );
 537
 538     if(filename)
 539         RtlCreateUnicodeStringFromAsciiz(&filenameW, filename);
 540     else
 541         filenameW.Buffer = NULL;
 542
 543     retval = GetFileVersionInfoSizeW(filenameW.Buffer, handle);
 544
 545     RtlFreeUnicodeString(&filenameW);
 546
 547     return retval;
 548 }
 549
 550 /***********************************************************************
 551  *           GetFileVersionInfoW             [VERSION.@]
 552  */
 553 BOOL WINAPI GetFileVersionInfoW( LPCWSTR filename, DWORD handle,
 554                                     DWORD datasize, LPVOID data )
 555 {
 556     DWORD len;
 557
 558     TRACE("(%s,%ld,size=%ld,data=%p)\n",
 559                 debugstr_w(filename), handle, datasize, data );
 560
 561     if (!data)
 562     {
 563         SetLastError(ERROR_INVALID_DATA);
 564         return FALSE;
 565     }
 566     len = VERSION_GetFileVersionInfo_PE(filename, datasize, data);
 567     /* 0xFFFFFFFF means: file is a PE module, but VERSION_INFO not found */
 568     if (len == 0xFFFFFFFF)
 569     {
 570         SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 571         return FALSE;
 572     }
 573
 574     if (!len)
 575     {
 576         LPSTR filenameA;
 577
 578         len = WideCharToMultiByte( CP_ACP, 0, filename, -1, NULL, 0, NULL, NULL );
 579         filenameA = HeapAlloc( GetProcessHeap(), 0, len );
 580         WideCharToMultiByte( CP_ACP, 0, filename, -1, filenameA, len, NULL, NULL );
 581
 582         len = VERSION_GetFileVersionInfo_16(filenameA, datasize, data);
 583         HeapFree( GetProcessHeap(), 0, filenameA );
 584         /* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
 585         if (!len || len == 0xFFFFFFFF)
 586         {
 587             SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 588             return FALSE;
 589         }
 590     }
 591
 592     /* If we end up here we have found either 16bit or 32bit
 593      * version information
 594      */
 595
 596     SetLastError(0);
 597     return TRUE;
 598 }
 599
 600 /***********************************************************************
 601  *           GetFileVersionInfoA             [VERSION.@]
 602  */
 603 BOOL WINAPI GetFileVersionInfoA( LPCSTR filename, DWORD handle,
 604                                     DWORD datasize, LPVOID data )
 605 {
 606     UNICODE_STRING filenameW;
 607     BOOL retval;
 608
 609     TRACE("(%s,%ld,size=%ld,data=%p)\n",
 610                 debugstr_a(filename), handle, datasize, data );
 611
 612     if(filename)
 613         RtlCreateUnicodeStringFromAsciiz(&filenameW, filename);
 614     else
 615         filenameW.Buffer = NULL;
 616
 617     retval = GetFileVersionInfoW(filenameW.Buffer, handle, datasize, data);
 618
 619     return retval;
 620 }
 621
 622 /***********************************************************************
 623  *           VersionInfo16_FindChild             [internal]
 624  */
 625 static VS_VERSION_INFO_STRUCT16 *VersionInfo16_FindChild( VS_VERSION_INFO_STRUCT16 *info,
 626                                             LPCSTR szKey, UINT cbKey )
 627 {
 628     VS_VERSION_INFO_STRUCT16 *child = VersionInfo16_Children( info );
 629
 630     while ( (DWORD)child < (DWORD)info + info->wLength )
 631     {
 632         if ( !strncasecmp( child->szKey, szKey, cbKey ) )
 633             return child;
 634
 635         if (!(child->wLength)) return NULL;
 636         child = VersionInfo16_Next( child );
 637     }
 638
 639     return NULL;
 640 }
 641
 642 /***********************************************************************
 643  *           VersionInfo32_FindChild             [internal]
 644  */
 645 static VS_VERSION_INFO_STRUCT32 *VersionInfo32_FindChild( VS_VERSION_INFO_STRUCT32 *info,
 646                                             LPCWSTR szKey, UINT cbKey )
 647 {
 648     VS_VERSION_INFO_STRUCT32 *child = VersionInfo32_Children( info );
 649
 650     while ( (DWORD)child < (DWORD)info + info->wLength )
 651     {
 652         if ( !strncmpiW( child->szKey, szKey, cbKey ) )
 653             return child;
 654
 655         child = VersionInfo32_Next( child );
 656     }
 657
 658     return NULL;
 659 }
 660
 661 /***********************************************************************
 662  *           VersionInfo16_QueryValue              [internal]
 663  *
 664  *    Gets a value from a 16-bit NE resource
 665  */
 666 static BOOL WINAPI VersionInfo16_QueryValue( VS_VERSION_INFO_STRUCT16 *info, LPCSTR lpSubBlock,
 667                                LPVOID *lplpBuffer, UINT *puLen )
 668 {
 669     while ( *lpSubBlock )
 670     {
 671         /* Find next path component */
 672         LPCSTR lpNextSlash;
 673         for ( lpNextSlash = lpSubBlock; *lpNextSlash; lpNextSlash++ )
 674             if ( *lpNextSlash == '\\' )
 675                 break;
 676
 677         /* Skip empty components */
 678         if ( lpNextSlash == lpSubBlock )
 679         {
 680             lpSubBlock++;
 681             continue;
 682         }
 683
 684         /* We have a non-empty component: search info for key */
 685         info = VersionInfo16_FindChild( info, lpSubBlock, lpNextSlash-lpSubBlock );
 686         if ( !info ) return FALSE;
 687
 688         /* Skip path component */
 689         lpSubBlock = lpNextSlash;
 690     }
 691
 692     /* Return value */
 693     *lplpBuffer = VersionInfo16_Value( info );
 694     if (puLen)
 695         *puLen = info->wValueLength;
 696
 697     return TRUE;
 698 }
 699
 700 /***********************************************************************
 701  *           VersionInfo32_QueryValue              [internal]
 702  *
 703  *    Gets a value from a 32-bit PE resource
 704  */
 705 static BOOL WINAPI VersionInfo32_QueryValue( VS_VERSION_INFO_STRUCT32 *info, LPCWSTR lpSubBlock,
 706                                LPVOID *lplpBuffer, UINT *puLen )
 707 {
 708     TRACE("lpSubBlock : (%s)\n", debugstr_w(lpSubBlock));
 709
 710     while ( *lpSubBlock )
 711     {
 712         /* Find next path component */
 713         LPCWSTR lpNextSlash;
 714         for ( lpNextSlash = lpSubBlock; *lpNextSlash; lpNextSlash++ )
 715             if ( *lpNextSlash == '\\' )
 716                 break;
 717
 718         /* Skip empty components */
 719         if ( lpNextSlash == lpSubBlock )
 720         {
 721             lpSubBlock++;
 722             continue;
 723         }
 724
 725         /* We have a non-empty component: search info for key */
 726         info = VersionInfo32_FindChild( info, lpSubBlock, lpNextSlash-lpSubBlock );
 727         if ( !info ) return FALSE;
 728
 729         /* Skip path component */
 730         lpSubBlock = lpNextSlash;
 731     }
 732
 733     /* Return value */
 734     *lplpBuffer = VersionInfo32_Value( info );
 735     if (puLen)
 736         *puLen = info->wValueLength;
 737
 738     return TRUE;
 739 }
 740
 741 /***********************************************************************
 742  *           VerQueryValueA              [VERSION.@]
 743  */
 744 BOOL WINAPI VerQueryValueA( LPVOID pBlock, LPCSTR lpSubBlock,
 745                                LPVOID *lplpBuffer, UINT *puLen )
 746 {
 747     VS_VERSION_INFO_STRUCT16 *info = (VS_VERSION_INFO_STRUCT16 *)pBlock;
 748
 749     TRACE("(%p,%s,%p,%p)\n",
 750                 pBlock, debugstr_a(lpSubBlock), lplpBuffer, puLen );
 751
 752     if ( !VersionInfoIs16( info ) )
 753     {
 754         /* FIXME : The conversion is maybe a bit overkill, we only need 1 value */
 755
 756         ConvertVersionInfo32To16( (VS_VERSION_INFO_STRUCT32 *)info,
 757                                   (VS_VERSION_INFO_STRUCT16 *)info );
 758     }
 759
 760     return VersionInfo16_QueryValue(info, lpSubBlock, lplpBuffer, puLen);
 761 }
 762
 763 /***********************************************************************
 764  *           VerQueryValueW              [VERSION.@]
 765  */
 766 BOOL WINAPI VerQueryValueW( LPVOID pBlock, LPCWSTR lpSubBlock,
 767                                LPVOID *lplpBuffer, UINT *puLen )
 768 {
 769     VS_VERSION_INFO_STRUCT32 *info = (VS_VERSION_INFO_STRUCT32 *)pBlock;
 770
 771     TRACE("(%p,%s,%p,%p)\n",
 772                 pBlock, debugstr_w(lpSubBlock), lplpBuffer, puLen );
 773
 774     if ( VersionInfoIs16( info ) )
 775     {
 776         BOOL ret;
 777         int len = WideCharToMultiByte(CP_ACP, 0, lpSubBlock, -1, NULL, 0, NULL, NULL);
 778         LPSTR lpSubBlockA = HeapAlloc(GetProcessHeap(), 0, len * sizeof(char));
 779         if (!lpSubBlockA)
 780             return FALSE;
 781         WideCharToMultiByte(CP_ACP, 0, lpSubBlock, -1, lpSubBlockA, len, NULL, NULL);
 782         ret = VersionInfo16_QueryValue(pBlock, lpSubBlockA, lplpBuffer, puLen);
 783         HeapFree(GetProcessHeap(), 0, lpSubBlockA);
 784         return ret;
 785     }
 786
 787     return VersionInfo32_QueryValue(info, lpSubBlock, lplpBuffer, puLen);
 788 }