git.oblomov.eu Git - wine/blob - 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  *
  45  *   This function will print via dprintf[_]ver to stddeb debug info regarding
  46  *   the file info structure vffi.
  47  *      15-Feb-1998 Dimitrie Paun (dimi@cs.toronto.edu)
  48  *      Added this function to clean up the code.
  49  *
  50  *****************************************************************************/
  51 static void print_vffi_debug(VS_FIXEDFILEINFO *vffi)
  52 {
  53         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",
  54                     HIWORD(vffi->dwStrucVersion),LOWORD(vffi->dwStrucVersion),
  55                     HIWORD(vffi->dwFileVersionMS),LOWORD(vffi->dwFileVersionMS),
  56                     HIWORD(vffi->dwFileVersionLS),LOWORD(vffi->dwFileVersionLS),
  57                     HIWORD(vffi->dwProductVersionMS),LOWORD(vffi->dwProductVersionMS),
  58                     HIWORD(vffi->dwProductVersionLS),LOWORD(vffi->dwProductVersionLS),
  59                     vffi->dwFileFlagsMask,
  60                     (vffi->dwFileFlags & VS_FF_DEBUG) ? "DEBUG," : "",
  61                     (vffi->dwFileFlags & VS_FF_PRERELEASE) ? "PRERELEASE," : "",
  62                     (vffi->dwFileFlags & VS_FF_PATCHED) ? "PATCHED," : "",
  63                     (vffi->dwFileFlags & VS_FF_PRIVATEBUILD) ? "PRIVATEBUILD," : "",
  64                     (vffi->dwFileFlags & VS_FF_INFOINFERRED) ? "INFOINFERRED," : "",
  65                     (vffi->dwFileFlags & VS_FF_SPECIALBUILD) ? "SPECIALBUILD," : ""
  66                     );
  67
  68         TRACE("(");
  69         TRACE(" OS=0x%x.0x%x ",
  70                 HIWORD(vffi->dwFileOS),
  71                 LOWORD(vffi->dwFileOS)
  72         );
  73         switch (vffi->dwFileOS&0xFFFF0000) {
  74         case VOS_DOS:TRACE("DOS,");break;
  75         case VOS_OS216:TRACE("OS/2-16,");break;
  76         case VOS_OS232:TRACE("OS/2-32,");break;
  77         case VOS_NT:TRACE("NT,");break;
  78         case VOS_UNKNOWN:
  79         default:
  80                 TRACE("UNKNOWN(0x%lx),",vffi->dwFileOS&0xFFFF0000);break;
  81         }
  82         switch (LOWORD(vffi->dwFileOS)) {
  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:TRACE("UNKNOWN(0x%x)",LOWORD(vffi->dwFileOS));break;
  89         }
  90         TRACE(")\n");
  91
  92         switch (vffi->dwFileType) {
  93         default:
  94         case VFT_UNKNOWN:
  95                 TRACE("filetype=Unknown(0x%lx)",vffi->dwFileType);
  96                 break;
  97         case VFT_APP:TRACE("filetype=APP,");break;
  98         case VFT_DLL:TRACE("filetype=DLL,");break;
  99         case VFT_DRV:
 100                 TRACE("filetype=DRV,");
 101                 switch(vffi->dwFileSubtype) {
 102                 default:
 103                 case VFT2_UNKNOWN:
 104                         TRACE("UNKNOWN(0x%lx)",vffi->dwFileSubtype);
 105                         break;
 106                 case VFT2_DRV_PRINTER:
 107                         TRACE("PRINTER");
 108                         break;
 109                 case VFT2_DRV_KEYBOARD:
 110                         TRACE("KEYBOARD");
 111                         break;
 112                 case VFT2_DRV_LANGUAGE:
 113                         TRACE("LANGUAGE");
 114                         break;
 115                 case VFT2_DRV_DISPLAY:
 116                         TRACE("DISPLAY");
 117                         break;
 118                 case VFT2_DRV_MOUSE:
 119                         TRACE("MOUSE");
 120                         break;
 121                 case VFT2_DRV_NETWORK:
 122                         TRACE("NETWORK");
 123                         break;
 124                 case VFT2_DRV_SYSTEM:
 125                         TRACE("SYSTEM");
 126                         break;
 127                 case VFT2_DRV_INSTALLABLE:
 128                         TRACE("INSTALLABLE");
 129                         break;
 130                 case VFT2_DRV_SOUND:
 131                         TRACE("SOUND");
 132                         break;
 133                 case VFT2_DRV_COMM:
 134                         TRACE("COMM");
 135                         break;
 136                 case VFT2_DRV_INPUTMETHOD:
 137                         TRACE("INPUTMETHOD");
 138                         break;
 139                 }
 140                 break;
 141         case VFT_FONT:
 142                 TRACE("filetype=FONT.");
 143                 switch (vffi->dwFileSubtype) {
 144                 default:
 145                         TRACE("UNKNOWN(0x%lx)",vffi->dwFileSubtype);
 146                         break;
 147                 case VFT2_FONT_RASTER:TRACE("RASTER");break;
 148                 case VFT2_FONT_VECTOR:TRACE("VECTOR");break;
 149                 case VFT2_FONT_TRUETYPE:TRACE("TRUETYPE");break;
 150                 }
 151                 break;
 152         case VFT_VXD:TRACE("filetype=VXD");break;
 153         case VFT_STATIC_LIB:TRACE("filetype=STATIC_LIB");break;
 154         }
 155         TRACE("\n");
 156         TRACE("  filedata=0x%lx.0x%lx\n",
 157                     vffi->dwFileDateMS,vffi->dwFileDateLS);
 158 }
 159
 160
 161 /***********************************************************************
 162  * Version Info Structure
 163  */
 164
 165 typedef struct
 166 {
 167     WORD  wLength;
 168     WORD  wValueLength;
 169     CHAR  szKey[1];
 170 #if 0   /* variable length structure */
 171     /* DWORD aligned */
 172     BYTE  Value[];
 173     /* DWORD aligned */
 174     VS_VERSION_INFO_STRUCT16 Children[];
 175 #endif
 176 } VS_VERSION_INFO_STRUCT16;
 177
 178 typedef struct
 179 {
 180     WORD  wLength;
 181     WORD  wValueLength;
 182     WORD  bText;
 183     WCHAR szKey[1];
 184 #if 0   /* variable length structure */
 185     /* DWORD aligned */
 186     BYTE  Value[];
 187     /* DWORD aligned */
 188     VS_VERSION_INFO_STRUCT32 Children[];
 189 #endif
 190 } VS_VERSION_INFO_STRUCT32;
 191
 192 #define VersionInfoIs16( ver ) \
 193     ( ((VS_VERSION_INFO_STRUCT16 *)ver)->szKey[0] >= ' ' )
 194
 195 #define DWORD_ALIGN( base, ptr ) \
 196     ( (LPBYTE)(base) + ((((LPBYTE)(ptr) - (LPBYTE)(base)) + 3) & ~3) )
 197
 198 #define VersionInfo16_Value( ver )  \
 199     DWORD_ALIGN( (ver), (ver)->szKey + strlen((ver)->szKey) + 1 )
 200 #define VersionInfo32_Value( ver )  \
 201     DWORD_ALIGN( (ver), (ver)->szKey + strlenW((ver)->szKey) + 1 )
 202
 203 #define VersionInfo16_Children( ver )  \
 204     (VS_VERSION_INFO_STRUCT16 *)( VersionInfo16_Value( ver ) + \
 205                            ( ( (ver)->wValueLength + 3 ) & ~3 ) )
 206 #define VersionInfo32_Children( ver )  \
 207     (VS_VERSION_INFO_STRUCT32 *)( VersionInfo32_Value( ver ) + \
 208                            ( ( (ver)->wValueLength * \
 209                                ((ver)->bText? 2 : 1) + 3 ) & ~3 ) )
 210
 211 #define VersionInfo16_Next( ver ) \
 212     (VS_VERSION_INFO_STRUCT16 *)( (LPBYTE)ver + (((ver)->wLength + 3) & ~3) )
 213 #define VersionInfo32_Next( ver ) \
 214     (VS_VERSION_INFO_STRUCT32 *)( (LPBYTE)ver + (((ver)->wLength + 3) & ~3) )
 215
 216 /***********************************************************************
 217  *           ConvertVersionInfo32To16        [internal]
 218  */
 219 void ConvertVersionInfo32To16( VS_VERSION_INFO_STRUCT32 *info32,
 220                                VS_VERSION_INFO_STRUCT16 *info16 )
 221 {
 222     /* Copy data onto local stack to prevent overwrites */
 223     WORD wLength = info32->wLength;
 224     WORD wValueLength = info32->wValueLength;
 225     WORD bText = info32->bText;
 226     LPBYTE lpValue = VersionInfo32_Value( info32 );
 227     VS_VERSION_INFO_STRUCT32 *child32 = VersionInfo32_Children( info32 );
 228     VS_VERSION_INFO_STRUCT16 *child16;
 229
 230     TRACE("Converting %p to %p\n", info32, info16 );
 231     TRACE("wLength %d, wValueLength %d, bText %d, value %p, child %p\n",
 232                 wLength, wValueLength, bText, lpValue, child32 );
 233
 234     /* Convert key */
 235     WideCharToMultiByte( CP_ACP, 0, info32->szKey, -1, info16->szKey, 0x7fffffff, NULL, NULL );
 236
 237     TRACE("Copied key from %p to %p: %s\n", info32->szKey, info16->szKey,
 238                 debugstr_a(info16->szKey) );
 239
 240     /* Convert value */
 241     if ( wValueLength == 0 )
 242     {
 243         info16->wValueLength = 0;
 244         TRACE("No value present\n" );
 245     }
 246     else if ( bText )
 247     {
 248         info16->wValueLength = WideCharToMultiByte( CP_ACP, 0, (LPCWSTR)lpValue, -1, NULL, 0, NULL, NULL );
 249         WideCharToMultiByte( CP_ACP, 0, (LPCWSTR)lpValue, -1,
 250                              VersionInfo16_Value( info16 ), info16->wValueLength, NULL, NULL );
 251
 252         TRACE("Copied value from %p to %p: %s\n", lpValue,
 253                     VersionInfo16_Value( info16 ),
 254                     debugstr_a(VersionInfo16_Value( info16 )) );
 255     }
 256     else
 257     {
 258         info16->wValueLength = wValueLength;
 259         memmove( VersionInfo16_Value( info16 ), lpValue, wValueLength );
 260
 261         TRACE("Copied value from %p to %p: %d bytes\n", lpValue,
 262                      VersionInfo16_Value( info16 ), wValueLength );
 263     }
 264
 265     /* Convert children */
 266     child16 = VersionInfo16_Children( info16 );
 267     while ( (DWORD)child32 < (DWORD)info32 + wLength && child32->wLength != 0 )
 268     {
 269         VS_VERSION_INFO_STRUCT32 *nextChild = VersionInfo32_Next( child32 );
 270
 271         ConvertVersionInfo32To16( child32, child16 );
 272
 273         child16 = VersionInfo16_Next( child16 );
 274         child32 = nextChild;
 275     }
 276
 277     /* Fixup length */
 278     info16->wLength = (DWORD)child16 - (DWORD)info16;
 279
 280     TRACE("Finished, length is %d (%p - %p)\n",
 281                 info16->wLength, info16, child16 );
 282 }
 283
 284 /***********************************************************************
 285  *           VERSION_GetFileVersionInfo_PE             [internal]
 286  *
 287  *    NOTE: returns size of the PE VERSION resource or 0xFFFFFFFF
 288  *    in the case the file is a PE module, but VERSION_INFO not found.
 289  */
 290 static DWORD VERSION_GetFileVersionInfo_PE( LPCWSTR filename, DWORD datasize, LPVOID data )
 291 {
 292     VS_FIXEDFILEINFO *vffi;
 293     DWORD len;
 294     BYTE *buf;
 295     HMODULE hModule;
 296     HRSRC hRsrc;
 297     HGLOBAL hMem;
 298
 299     TRACE("%s\n", debugstr_w(filename));
 300
 301     hModule = GetModuleHandleW(filename);
 302     if(!hModule)
 303         hModule = LoadLibraryExW(filename, 0, LOAD_LIBRARY_AS_DATAFILE);
 304     else
 305         hModule = LoadLibraryExW(filename, 0, 0);
 306     if(!hModule)
 307     {
 308         WARN("Could not load %s\n", debugstr_w(filename));
 309         return 0;
 310     }
 311     hRsrc = FindResourceW(hModule,
 312                           MAKEINTRESOURCEW(VS_VERSION_INFO),
 313                           MAKEINTRESOURCEW(VS_FILE_INFO));
 314     if(!hRsrc)
 315     {
 316         WARN("Could not find VS_VERSION_INFO in %s\n", debugstr_w(filename));
 317         FreeLibrary(hModule);
 318         return 0xFFFFFFFF;
 319     }
 320     len = SizeofResource(hModule, hRsrc);
 321     hMem = LoadResource(hModule, hRsrc);
 322     if(!hMem)
 323     {
 324         WARN("Could not load VS_VERSION_INFO from %s\n", debugstr_w(filename));
 325         FreeLibrary(hModule);
 326         return 0xFFFFFFFF;
 327     }
 328     buf = LockResource(hMem);
 329
 330     vffi = (VS_FIXEDFILEINFO *)VersionInfo32_Value( (VS_VERSION_INFO_STRUCT32 *)buf );
 331
 332     if ( vffi->dwSignature != VS_FFI_SIGNATURE )
 333     {
 334         WARN("vffi->dwSignature is 0x%08lx, but not 0x%08lx!\n",
 335                    vffi->dwSignature, VS_FFI_SIGNATURE );
 336         len = 0xFFFFFFFF;
 337         goto END;
 338     }
 339
 340     if ( TRACE_ON(ver) )
 341         print_vffi_debug( vffi );
 342
 343     if(data)
 344     {
 345         if(datasize < len)
 346             len = datasize; /* truncate data */
 347         if(len)
 348             memcpy(data, buf, len);
 349         else
 350             len = 0xFFFFFFFF;
 351     }
 352 END:
 353     FreeResource(hMem);
 354     FreeLibrary(hModule);
 355
 356     return len;
 357 }
 358
 359 /***********************************************************************
 360  *           VERSION_GetFileVersionInfo_16             [internal]
 361  *
 362  *    NOTE: returns size of the 16-bit VERSION resource or 0xFFFFFFFF
 363  *    in the case the file exists, but VERSION_INFO not found.
 364  */
 365 static DWORD VERSION_GetFileVersionInfo_16( LPCSTR filename, DWORD datasize, LPVOID data )
 366 {
 367     VS_FIXEDFILEINFO *vffi;
 368     DWORD len, offset;
 369     BYTE *buf;
 370     HMODULE16 hModule;
 371     HRSRC16 hRsrc;
 372     HGLOBAL16 hMem;
 373     char dllname[20], owner[20], *p;
 374     const char *basename;
 375     BOOL is_builtin = FALSE;
 376
 377     TRACE("%s\n", debugstr_a(filename));
 378
 379     /* strip path information */
 380
 381     basename = filename;
 382     if (basename[0] && basename[1] == ':') basename += 2;  /* strip drive specification */
 383     if ((p = strrchr( basename, '\\' ))) basename = p + 1;
 384     if ((p = strrchr( basename, '/' ))) basename = p + 1;
 385
 386     if (strlen(basename) < sizeof(dllname)-4)
 387     {
 388         int file_exists;
 389
 390         strcpy( dllname, basename );
 391         p = strrchr( dllname, '.' );
 392         if (!p) strcat( dllname, ".dll" );
 393         for (p = dllname; *p; p++) if (*p >= 'A' && *p <= 'Z') *p += 32;
 394
 395         if (wine_dll_get_owner( dllname, owner, sizeof(owner), &file_exists ) == 0)
 396             is_builtin = TRUE;
 397     }
 398
 399     /* first try without loading a 16-bit module */
 400     if (is_builtin)
 401         len = 0;
 402     else
 403         len = GetFileResourceSize16( filename,
 404                                      MAKEINTRESOURCEA(VS_FILE_INFO),
 405                                      MAKEINTRESOURCEA(VS_VERSION_INFO),
 406                                      &offset );
 407     if (len)
 408     {
 409         if (!data) return len;
 410
 411         len = GetFileResource16( filename,
 412                                  MAKEINTRESOURCEA(VS_FILE_INFO),
 413                                  MAKEINTRESOURCEA(VS_VERSION_INFO),
 414                                  offset, datasize, data );
 415         if (len)
 416         {
 417             if ( VersionInfoIs16( data ) )
 418                 vffi = (VS_FIXEDFILEINFO *)VersionInfo16_Value( (VS_VERSION_INFO_STRUCT16 *)data );
 419             else
 420                 vffi = (VS_FIXEDFILEINFO *)VersionInfo32_Value( (VS_VERSION_INFO_STRUCT32 *)data );
 421
 422             if ( vffi->dwSignature == VS_FFI_SIGNATURE )
 423             {
 424                 if ( ((VS_VERSION_INFO_STRUCT16 *)data)->wLength < len )
 425                     len = ((VS_VERSION_INFO_STRUCT16 *)data)->wLength;
 426
 427                 if ( TRACE_ON(ver) )
 428                     print_vffi_debug( vffi );
 429
 430                 if ( datasize >= sizeof(VS_VERSION_INFO_STRUCT16)
 431                      && datasize >= ((VS_VERSION_INFO_STRUCT16 *)data)->wLength
 432                      && !VersionInfoIs16( data ) )
 433                 {
 434                     /* convert resource from PE format to NE format */
 435                     ConvertVersionInfo32To16( (VS_VERSION_INFO_STRUCT32 *)data,
 436                                               (VS_VERSION_INFO_STRUCT16 *)data );
 437                 }
 438                 return len;
 439             }
 440         }
 441     }
 442
 443     /* this might be a builtin 16-bit module */
 444     hModule = LoadLibrary16(filename);
 445     if(hModule < 32)
 446     {
 447         WARN("Could not load %s\n", debugstr_a(filename));
 448         return 0;
 449     }
 450     hRsrc = FindResource16(hModule,
 451                           MAKEINTRESOURCEA(VS_VERSION_INFO),
 452                           MAKEINTRESOURCEA(VS_FILE_INFO));
 453     if(!hRsrc)
 454     {
 455         WARN("Could not find VS_VERSION_INFO in %s\n", debugstr_a(filename));
 456         FreeLibrary16(hModule);
 457         return 0xFFFFFFFF;
 458     }
 459     len = SizeofResource16(hModule, hRsrc);
 460     hMem = LoadResource16(hModule, hRsrc);
 461     if(!hMem)
 462     {
 463         WARN("Could not load VS_VERSION_INFO from %s\n", debugstr_a(filename));
 464         FreeLibrary16(hModule);
 465         return 0xFFFFFFFF;
 466     }
 467     buf = LockResource16(hMem);
 468
 469     if(!VersionInfoIs16(buf))
 470     {
 471         len = 0xFFFFFFFF;
 472         goto END;
 473     }
 474
 475     vffi = (VS_FIXEDFILEINFO *)VersionInfo16_Value( (VS_VERSION_INFO_STRUCT16 *)buf );
 476
 477     if ( vffi->dwSignature != VS_FFI_SIGNATURE )
 478     {
 479         WARN("vffi->dwSignature is 0x%08lx, but not 0x%08lx!\n",
 480                    vffi->dwSignature, VS_FFI_SIGNATURE );
 481         len = 0xFFFFFFFF;
 482         goto END;
 483     }
 484
 485     if ( TRACE_ON(ver) )
 486         print_vffi_debug( vffi );
 487
 488     if(data)
 489     {
 490         if(datasize < len)
 491             len = datasize; /* truncate data */
 492         if(len)
 493             memcpy(data, buf, len);
 494         else
 495             len = 0xFFFFFFFF;
 496     }
 497 END:
 498     FreeResource16(hMem);
 499     FreeLibrary16(hModule);
 500
 501     return len;
 502 }
 503
 504 /***********************************************************************
 505  *           GetFileVersionInfoSizeW         [VERSION.@]
 506  */
 507 DWORD WINAPI GetFileVersionInfoSizeW( LPCWSTR filename, LPDWORD handle )
 508 {
 509     DWORD len;
 510
 511     TRACE("(%s,%p)\n", debugstr_w(filename), handle );
 512
 513     if (handle) *handle = 0;
 514
 515     if (!filename)
 516     {
 517         SetLastError(ERROR_INVALID_PARAMETER);
 518         return 0;
 519     }
 520     if (!*filename)
 521     {
 522         SetLastError(ERROR_BAD_PATHNAME);
 523         return 0;
 524     }
 525
 526     len = VERSION_GetFileVersionInfo_PE(filename, 0, NULL);
 527     /* 0xFFFFFFFF means: file is a PE module, but VERSION_INFO not found */
 528     if(len == 0xFFFFFFFF)
 529     {
 530         SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 531         return 0;
 532     }
 533
 534     if (!len)
 535     {
 536         LPSTR filenameA;
 537
 538         len = WideCharToMultiByte( CP_ACP, 0, filename, -1, NULL, 0, NULL, NULL );
 539         filenameA = HeapAlloc( GetProcessHeap(), 0, len );
 540         WideCharToMultiByte( CP_ACP, 0, filename, -1, filenameA, len, NULL, NULL );
 541
 542         len = VERSION_GetFileVersionInfo_16(filenameA, 0, NULL);
 543         HeapFree( GetProcessHeap(), 0, filenameA );
 544         /* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
 545         if (!len)
 546         {
 547             SetLastError(ERROR_FILE_NOT_FOUND);
 548             return 0;
 549         }
 550         if (len == 0xFFFFFFFF)
 551         {
 552             SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 553             return 0;
 554         }
 555     }
 556
 557     SetLastError(0);
 558     return len;
 559 }
 560
 561 /***********************************************************************
 562  *           GetFileVersionInfoSizeA         [VERSION.@]
 563  */
 564 DWORD WINAPI GetFileVersionInfoSizeA( LPCSTR filename, LPDWORD handle )
 565 {   UNICODE_STRING filenameW;
 566     DWORD retval;
 567     if(filename) RtlCreateUnicodeStringFromAsciiz(&filenameW, filename);
 568     else filenameW.Buffer = NULL;
 569     retval = GetFileVersionInfoSizeW(filenameW.Buffer, handle);
 570     RtlFreeUnicodeString(&filenameW);
 571     return retval;
 572 }
 573
 574 /***********************************************************************
 575  *           GetFileVersionInfoA             [VERSION.@]
 576  */
 577 BOOL WINAPI GetFileVersionInfoA( LPCSTR filename, DWORD handle,
 578                                     DWORD datasize, LPVOID data )
 579 {   UNICODE_STRING filenameW;
 580     DWORD len;
 581
 582     TRACE("(%s,%ld,size=%ld,data=%p)\n",
 583                 debugstr_a(filename), handle, datasize, data );
 584
 585     if(filename) RtlCreateUnicodeStringFromAsciiz(&filenameW, filename);
 586     else filenameW.Buffer = NULL;
 587     len = VERSION_GetFileVersionInfo_PE(filenameW.Buffer, datasize, data);
 588     /* 0xFFFFFFFF means: file is a PE module, but VERSION_INFO not found */
 589     RtlFreeUnicodeString(&filenameW);
 590     if (len == 0xFFFFFFFF)
 591     {
 592         SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 593         return FALSE;
 594     }
 595
 596     if (!len)
 597     {
 598         len = VERSION_GetFileVersionInfo_16(filename, datasize, data);
 599         /* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
 600         if (!len || len == 0xFFFFFFFF)
 601         {
 602             SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 603             return FALSE;
 604         }
 605     }
 606
 607     if (    datasize >= sizeof(VS_VERSION_INFO_STRUCT16)
 608          && datasize >= ((VS_VERSION_INFO_STRUCT16 *)data)->wLength
 609          && !VersionInfoIs16( data ) )
 610     {
 611         /* convert resource from PE format to NE format */
 612         ConvertVersionInfo32To16( (VS_VERSION_INFO_STRUCT32 *)data,
 613                                   (VS_VERSION_INFO_STRUCT16 *)data );
 614     }
 615
 616     SetLastError(0);
 617     return TRUE;
 618 }
 619
 620 /***********************************************************************
 621  *           GetFileVersionInfoW             [VERSION.@]
 622  */
 623 BOOL WINAPI GetFileVersionInfoW( LPCWSTR filename, DWORD handle,
 624                                     DWORD datasize, LPVOID data )
 625 {
 626     DWORD len;
 627
 628     TRACE("(%s,%ld,size=%ld,data=%p)\n",
 629                 debugstr_w(filename), handle, datasize, data );
 630
 631     len = VERSION_GetFileVersionInfo_PE(filename, datasize, data);
 632     /* 0xFFFFFFFF means: file is a PE module, but VERSION_INFO not found */
 633     if (len == 0xFFFFFFFF)
 634     {
 635         SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 636         return FALSE;
 637     }
 638
 639     if (!len)
 640     {
 641         LPSTR filenameA;
 642
 643         len = WideCharToMultiByte( CP_ACP, 0, filename, -1, NULL, 0, NULL, NULL );
 644         filenameA = HeapAlloc( GetProcessHeap(), 0, len );
 645         WideCharToMultiByte( CP_ACP, 0, filename, -1, filenameA, len, NULL, NULL );
 646
 647         len = VERSION_GetFileVersionInfo_16(filenameA, datasize, data);
 648         HeapFree( GetProcessHeap(), 0, filenameA );
 649         /* 0xFFFFFFFF means: file exists, but VERSION_INFO not found */
 650         if (!len || len == 0xFFFFFFFF)
 651         {
 652             SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 653             return FALSE;
 654         }
 655     }
 656
 657     if ( datasize >= sizeof(VS_VERSION_INFO_STRUCT16) &&
 658          datasize >= ((VS_VERSION_INFO_STRUCT16 *)data)->wLength &&
 659          VersionInfoIs16( data ) )
 660     {
 661         ERR("Cannot access NE resource in %s\n", debugstr_w(filename) );
 662         SetLastError(ERROR_RESOURCE_DATA_NOT_FOUND);
 663         return  FALSE;
 664     }
 665
 666     SetLastError(0);
 667     return TRUE;
 668 }
 669
 670
 671 /***********************************************************************
 672  *           VersionInfo16_FindChild             [internal]
 673  */
 674 static VS_VERSION_INFO_STRUCT16 *VersionInfo16_FindChild( VS_VERSION_INFO_STRUCT16 *info,
 675                                             LPCSTR szKey, UINT cbKey )
 676 {
 677     VS_VERSION_INFO_STRUCT16 *child = VersionInfo16_Children( info );
 678
 679     while ( (DWORD)child < (DWORD)info + info->wLength )
 680     {
 681         if ( !strncasecmp( child->szKey, szKey, cbKey ) )
 682             return child;
 683
 684         if (!(child->wLength)) return NULL;
 685         child = VersionInfo16_Next( child );
 686     }
 687
 688     return NULL;
 689 }
 690
 691 /***********************************************************************
 692  *           VersionInfo32_FindChild             [internal]
 693  */
 694 static VS_VERSION_INFO_STRUCT32 *VersionInfo32_FindChild( VS_VERSION_INFO_STRUCT32 *info,
 695                                             LPCWSTR szKey, UINT cbKey )
 696 {
 697     VS_VERSION_INFO_STRUCT32 *child = VersionInfo32_Children( info );
 698
 699     while ( (DWORD)child < (DWORD)info + info->wLength )
 700     {
 701         if ( !strncmpiW( child->szKey, szKey, cbKey ) )
 702             return child;
 703
 704         child = VersionInfo32_Next( child );
 705     }
 706
 707     return NULL;
 708 }
 709
 710 /***********************************************************************
 711  *           VersionInfo16_QueryValue              [internal]
 712  *
 713  *    Gets a value from a 16-bit NE resource
 714  */
 715 DWORD WINAPI VersionInfo16_QueryValue( VS_VERSION_INFO_STRUCT16 *info, LPCSTR lpSubBlock,
 716                                LPVOID *lplpBuffer, UINT *puLen )
 717 {
 718     while ( *lpSubBlock )
 719     {
 720         /* Find next path component */
 721         LPCSTR lpNextSlash;
 722         for ( lpNextSlash = lpSubBlock; *lpNextSlash; lpNextSlash++ )
 723             if ( *lpNextSlash == '\\' )
 724                 break;
 725
 726         /* Skip empty components */
 727         if ( lpNextSlash == lpSubBlock )
 728         {
 729             lpSubBlock++;
 730             continue;
 731         }
 732
 733         /* We have a non-empty component: search info for key */
 734         info = VersionInfo16_FindChild( info, lpSubBlock, lpNextSlash-lpSubBlock );
 735         if ( !info ) return FALSE;
 736
 737         /* Skip path component */
 738         lpSubBlock = lpNextSlash;
 739     }
 740
 741     /* Return value */
 742     *lplpBuffer = VersionInfo16_Value( info );
 743     *puLen = info->wValueLength;
 744
 745     return TRUE;
 746 }
 747
 748 /***********************************************************************
 749  *           VerQueryValueA              [VERSION.@]
 750  */
 751 DWORD WINAPI VerQueryValueA( LPVOID pBlock, LPCSTR lpSubBlock,
 752                                LPVOID *lplpBuffer, UINT *puLen )
 753 {
 754     VS_VERSION_INFO_STRUCT16 *info = (VS_VERSION_INFO_STRUCT16 *)pBlock;
 755
 756     TRACE("(%p,%s,%p,%p)\n",
 757                 pBlock, debugstr_a(lpSubBlock), lplpBuffer, puLen );
 758
 759     if ( !VersionInfoIs16( info ) )
 760     {
 761         INT len;
 762         LPWSTR wide_str;
 763         DWORD give;
 764
 765         /* <lawson_whitney@juno.com> Feb 2001 */
 766         /* AOL 5.0 does this, expecting to get this: */
 767         len = MultiByteToWideChar(CP_ACP, 0, lpSubBlock, -1, NULL, 0);
 768         wide_str = HeapAlloc(GetProcessHeap(), 0, len * sizeof(WCHAR));
 769         MultiByteToWideChar(CP_ACP, 0, lpSubBlock, -1, wide_str, len);
 770
 771         give = VerQueryValueW(pBlock, wide_str, lplpBuffer, puLen);
 772         HeapFree(GetProcessHeap(), 0, wide_str);
 773         return give;
 774     }
 775
 776     return VersionInfo16_QueryValue(info, lpSubBlock, lplpBuffer, puLen);
 777 }
 778
 779 /***********************************************************************
 780  *           VerQueryValueW              [VERSION.@]
 781  */
 782 DWORD WINAPI VerQueryValueW( LPVOID pBlock, LPCWSTR lpSubBlock,
 783                                LPVOID *lplpBuffer, UINT *puLen )
 784 {
 785     VS_VERSION_INFO_STRUCT32 *info = (VS_VERSION_INFO_STRUCT32 *)pBlock;
 786
 787     TRACE("(%p,%s,%p,%p)\n",
 788                 pBlock, debugstr_w(lpSubBlock), lplpBuffer, puLen );
 789
 790     if ( VersionInfoIs16( info ) )
 791     {
 792         DWORD ret;
 793         int len = WideCharToMultiByte(CP_ACP, 0, lpSubBlock, -1, NULL, 0, NULL, NULL);
 794         LPSTR lpSubBlockA = HeapAlloc(GetProcessHeap(), 0, len * sizeof(char));
 795         if (!lpSubBlockA)
 796             return FALSE;
 797         WideCharToMultiByte(CP_ACP, 0, lpSubBlock, -1, lpSubBlockA, len, NULL, NULL);
 798         ret = VersionInfo16_QueryValue(pBlock, lpSubBlockA, lplpBuffer, puLen);
 799         HeapFree(GetProcessHeap(), 0, lpSubBlockA);
 800         return ret;
 801     }
 802
 803     while ( *lpSubBlock )
 804     {
 805         /* Find next path component */
 806         LPCWSTR lpNextSlash;
 807         for ( lpNextSlash = lpSubBlock; *lpNextSlash; lpNextSlash++ )
 808             if ( *lpNextSlash == '\\' )
 809                 break;
 810
 811         /* Skip empty components */
 812         if ( lpNextSlash == lpSubBlock )
 813         {
 814             lpSubBlock++;
 815             continue;
 816         }
 817
 818         /* We have a non-empty component: search info for key */
 819         info = VersionInfo32_FindChild( info, lpSubBlock, lpNextSlash-lpSubBlock );
 820         if ( !info ) return FALSE;
 821
 822         /* Skip path component */
 823         lpSubBlock = lpNextSlash;
 824     }
 825
 826     /* Return value */
 827     *lplpBuffer = VersionInfo32_Value( info );
 828     *puLen = info->wValueLength;
 829
 830     return TRUE;
 831 }