dlls/version/install.c

   1 /*
   2  * Implementation of VERSION.DLL - File Installer routines
   3  *
   4  * Copyright 1996,1997 Marcus Meissner
   5  * Copyright 1997 David Cuthbert
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  *
  21  * TODO
  22  *   o Check the installation functions.
  23  */
  24
  25 #include <stdlib.h>
  26 #include <stdarg.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29
  30 #include "windef.h"
  31 #include "winbase.h"
  32 #include "winver.h"
  33 #include "winnls.h"
  34 #include "wine/unicode.h"
  35 #include "winerror.h"
  36 #include "lzexpand.h"
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(ver);
  40
  41
  42 /******************************************************************************
  43  *   testFileExistenceA
  44  *
  45  *   Tests whether a given path/file combination exists.  If the file does
  46  *   not exist, the return value is zero.  If it does exist, the return
  47  *   value is non-zero.
  48  *
  49  *   Revision history
  50  *      30-May-1997 Dave Cuthbert (dacut@ece.cmu.edu)
  51  *         Original implementation
  52  *
  53  */
  54 static int testFileExistenceA( char const * path, char const * file, BOOL excl )
  55 {
  56     char  filename[1024];
  57     int  filenamelen;
  58     OFSTRUCT  fileinfo;
  59
  60     fileinfo.cBytes = sizeof(OFSTRUCT);
  61
  62     strcpy(filename, path);
  63     filenamelen = strlen(filename);
  64
  65     /* Add a trailing \ if necessary */
  66     if(filenamelen) {
  67         if(filename[filenamelen - 1] != '\\')
  68             strcat(filename, "\\");
  69     }
  70     else /* specify the current directory */
  71         strcpy(filename, ".\\");
  72
  73     /* Create the full pathname */
  74     strcat(filename, file);
  75
  76     return (OpenFile(filename, &fileinfo,
  77                      OF_EXIST | (excl ? OF_SHARE_EXCLUSIVE : 0)) != HFILE_ERROR);
  78 }
  79
  80 /******************************************************************************
  81  *   testFileExistenceW
  82  */
  83 static int testFileExistenceW( const WCHAR *path, const WCHAR *file, BOOL excl )
  84 {
  85     char *filename;
  86     DWORD pathlen, filelen;
  87     int ret;
  88     OFSTRUCT fileinfo;
  89
  90     fileinfo.cBytes = sizeof(OFSTRUCT);
  91
  92     pathlen = WideCharToMultiByte( CP_ACP, 0, path, -1, NULL, 0, NULL, NULL );
  93     filelen = WideCharToMultiByte( CP_ACP, 0, file, -1, NULL, 0, NULL, NULL );
  94     filename = HeapAlloc( GetProcessHeap(), 0, pathlen+filelen+2 );
  95
  96     WideCharToMultiByte( CP_ACP, 0, path, -1, filename, pathlen, NULL, NULL );
  97     /* Add a trailing \ if necessary */
  98     if (pathlen > 1)
  99     {
 100         if (filename[pathlen-2] != '\\') strcpy( &filename[pathlen-1], "\\" );
 101     }
 102     else /* specify the current directory */
 103         strcpy(filename, ".\\");
 104
 105     WideCharToMultiByte( CP_ACP, 0, file, -1, filename+strlen(filename), filelen, NULL, NULL );
 106
 107     ret = (OpenFile(filename, &fileinfo,
 108                     OF_EXIST | (excl ? OF_SHARE_EXCLUSIVE : 0)) != HFILE_ERROR);
 109     HeapFree( GetProcessHeap(), 0, filename );
 110     return ret;
 111 }
 112
 113 /*****************************************************************************
 114  *   VerFindFileA [VERSION.@]
 115  *
 116  *   Determines where to install a file based on whether it locates another
 117  *   version of the file in the system.  The values VerFindFile returns are
 118  *   used in a subsequent call to the VerInstallFile function.
 119  *
 120  *   Revision history:
 121  *      30-May-1997   Dave Cuthbert (dacut@ece.cmu.edu)
 122  *         Reimplementation of VerFindFile from original stub.
 123  */
 124 DWORD WINAPI VerFindFileA(
 125     UINT flags,
 126     LPCSTR lpszFilename,
 127     LPCSTR lpszWinDir,
 128     LPCSTR lpszAppDir,
 129     LPSTR lpszCurDir,
 130     UINT *lpuCurDirLen,
 131     LPSTR lpszDestDir,
 132     UINT *lpuDestDirLen )
 133 {
 134     DWORD  retval = 0;
 135     const char *curDir;
 136     const char *destDir;
 137     unsigned int  curDirSizeReq;
 138     unsigned int  destDirSizeReq;
 139     char  systemDir[MAX_PATH];
 140
 141     /* Print out debugging information */
 142     TRACE("flags = %x filename=%s windir=%s appdir=%s curdirlen=%p(%u) destdirlen=%p(%u)\n",
 143           flags, debugstr_a(lpszFilename), debugstr_a(lpszWinDir), debugstr_a(lpszAppDir),
 144           lpuCurDirLen, lpuCurDirLen ? *lpuCurDirLen : 0,
 145           lpuDestDirLen, lpuDestDirLen ? *lpuDestDirLen : 0 );
 146
 147     /* Figure out where the file should go; shared files default to the
 148        system directory */
 149
 150     GetSystemDirectoryA(systemDir, sizeof(systemDir));
 151     curDir = "";
 152     destDir = "";
 153
 154     if(flags & VFFF_ISSHAREDFILE)
 155     {
 156         destDir = systemDir;
 157         /* Were we given a filename?  If so, try to find the file. */
 158         if(lpszFilename)
 159         {
 160             if(testFileExistenceA(destDir, lpszFilename, FALSE)) curDir = destDir;
 161             else if(lpszAppDir && testFileExistenceA(lpszAppDir, lpszFilename, FALSE))
 162             {
 163                 curDir = lpszAppDir;
 164                 retval |= VFF_CURNEDEST;
 165             }
 166         }
 167     }
 168     else /* not a shared file */
 169     {
 170         if(lpszAppDir)
 171         {
 172             destDir = lpszAppDir;
 173             if(lpszFilename)
 174             {
 175                 if(testFileExistenceA(destDir, lpszFilename, FALSE)) curDir = destDir;
 176                 else if(testFileExistenceA(systemDir, lpszFilename, FALSE))
 177                 {
 178                     curDir = systemDir;
 179                     retval |= VFF_CURNEDEST;
 180                 }
 181             }
 182         }
 183     }
 184
 185     if (lpszFilename && !testFileExistenceA(curDir, lpszFilename, TRUE))
 186         retval |= VFF_FILEINUSE;
 187
 188     curDirSizeReq = strlen(curDir) + 1;
 189     destDirSizeReq = strlen(destDir) + 1;
 190
 191     /* Make sure that the pointers to the size of the buffers are
 192        valid; if not, do NOTHING with that buffer.  If that pointer
 193        is valid, then make sure that the buffer pointer is valid, too! */
 194
 195     if(lpuDestDirLen && lpszDestDir)
 196     {
 197         if (*lpuDestDirLen < destDirSizeReq) retval |= VFF_BUFFTOOSMALL;
 198         lstrcpynA(lpszDestDir, destDir, *lpuDestDirLen);
 199         *lpuDestDirLen = destDirSizeReq;
 200     }
 201     if(lpuCurDirLen && lpszCurDir)
 202     {
 203         if(*lpuCurDirLen < curDirSizeReq) retval |= VFF_BUFFTOOSMALL;
 204         lstrcpynA(lpszCurDir, curDir, *lpuCurDirLen);
 205         *lpuCurDirLen = curDirSizeReq;
 206     }
 207
 208     TRACE("ret = %lu (%s%s%s) curdir=%s destdir=%s\n", retval,
 209           (retval & VFF_CURNEDEST) ? "VFF_CURNEDEST " : "",
 210           (retval & VFF_FILEINUSE) ? "VFF_FILEINUSE " : "",
 211           (retval & VFF_BUFFTOOSMALL) ? "VFF_BUFFTOOSMALL " : "",
 212           debugstr_a(lpszCurDir), debugstr_a(lpszDestDir));
 213
 214     return retval;
 215 }
 216
 217 /*****************************************************************************
 218  * VerFindFileW                                         [VERSION.@]
 219  */
 220 DWORD WINAPI VerFindFileW( UINT flags,LPCWSTR lpszFilename,LPCWSTR lpszWinDir,
 221                            LPCWSTR lpszAppDir, LPWSTR lpszCurDir,UINT *lpuCurDirLen,
 222                            LPWSTR lpszDestDir,UINT *lpuDestDirLen )
 223 {
 224     static const WCHAR emptyW;
 225     DWORD retval = 0;
 226     const WCHAR *curDir;
 227     const WCHAR *destDir;
 228     unsigned int curDirSizeReq;
 229     unsigned int destDirSizeReq;
 230     WCHAR systemDir[MAX_PATH];
 231
 232     /* Print out debugging information */
 233     TRACE("flags = %x filename=%s windir=%s appdir=%s curdirlen=%p(%u) destdirlen=%p(%u)\n",
 234           flags, debugstr_w(lpszFilename), debugstr_w(lpszWinDir), debugstr_w(lpszAppDir),
 235           lpuCurDirLen, lpuCurDirLen ? *lpuCurDirLen : 0,
 236           lpuDestDirLen, lpuDestDirLen ? *lpuDestDirLen : 0 );
 237
 238     /* Figure out where the file should go; shared files default to the
 239        system directory */
 240
 241     GetSystemDirectoryW(systemDir, sizeof(systemDir)/sizeof(WCHAR));
 242     curDir = &emptyW;
 243     destDir = &emptyW;
 244
 245     if(flags & VFFF_ISSHAREDFILE)
 246     {
 247         destDir = systemDir;
 248         /* Were we given a filename?  If so, try to find the file. */
 249         if(lpszFilename)
 250         {
 251             if(testFileExistenceW(destDir, lpszFilename, FALSE)) curDir = destDir;
 252             else if(lpszAppDir && testFileExistenceW(lpszAppDir, lpszFilename, FALSE))
 253             {
 254                 curDir = lpszAppDir;
 255                 retval |= VFF_CURNEDEST;
 256             }
 257         }
 258     }
 259     else /* not a shared file */
 260     {
 261         if(lpszAppDir)
 262         {
 263             destDir = lpszAppDir;
 264             if(lpszFilename)
 265             {
 266                 if(testFileExistenceW(destDir, lpszFilename, FALSE)) curDir = destDir;
 267                 else if(testFileExistenceW(systemDir, lpszFilename, FALSE))
 268                 {
 269                     curDir = systemDir;
 270                     retval |= VFF_CURNEDEST;
 271                 }
 272             }
 273         }
 274     }
 275
 276     if (lpszFilename && !testFileExistenceW(curDir, lpszFilename, TRUE))
 277         retval |= VFF_FILEINUSE;
 278
 279     curDirSizeReq = strlenW(curDir) + 1;
 280     destDirSizeReq = strlenW(destDir) + 1;
 281
 282     /* Make sure that the pointers to the size of the buffers are
 283        valid; if not, do NOTHING with that buffer.  If that pointer
 284        is valid, then make sure that the buffer pointer is valid, too! */
 285
 286     if(lpuDestDirLen && lpszDestDir)
 287     {
 288         if (*lpuDestDirLen < destDirSizeReq) retval |= VFF_BUFFTOOSMALL;
 289         lstrcpynW(lpszDestDir, destDir, *lpuDestDirLen);
 290         *lpuDestDirLen = destDirSizeReq;
 291     }
 292     if(lpuCurDirLen && lpszCurDir)
 293     {
 294         if(*lpuCurDirLen < curDirSizeReq) retval |= VFF_BUFFTOOSMALL;
 295         lstrcpynW(lpszCurDir, curDir, *lpuCurDirLen);
 296         *lpuCurDirLen = curDirSizeReq;
 297     }
 298
 299     TRACE("ret = %lu (%s%s%s) curdir=%s destdir=%s\n", retval,
 300           (retval & VFF_CURNEDEST) ? "VFF_CURNEDEST " : "",
 301           (retval & VFF_FILEINUSE) ? "VFF_FILEINUSE " : "",
 302           (retval & VFF_BUFFTOOSMALL) ? "VFF_BUFFTOOSMALL " : "",
 303           debugstr_w(lpszCurDir), debugstr_w(lpszDestDir));
 304     return retval;
 305 }
 306
 307 static LPBYTE
 308 _fetch_versioninfo(LPSTR fn,VS_FIXEDFILEINFO **vffi) {
 309     DWORD       alloclen;
 310     LPBYTE      buf;
 311     DWORD       ret;
 312
 313     alloclen = 1000;
 314     buf=HeapAlloc(GetProcessHeap(), 0, alloclen);
 315     if(buf == NULL) {
 316         WARN("Memory exausted while fetching version info!\n");
 317         return NULL;
 318     }
 319     while (1) {
 320         ret = GetFileVersionInfoA(fn,0,alloclen,buf);
 321         if (!ret) {
 322             HeapFree(GetProcessHeap(), 0, buf);
 323             return NULL;
 324         }
 325         if (alloclen<*(WORD*)buf) {
 326             alloclen = *(WORD*)buf;
 327             HeapFree(GetProcessHeap(), 0, buf);
 328             buf = HeapAlloc(GetProcessHeap(), 0, alloclen);
 329             if(buf == NULL) {
 330                WARN("Memory exausted while fetching version info!\n");
 331                return NULL;
 332             }
 333         } else {
 334             *vffi = (VS_FIXEDFILEINFO*)(buf+0x14);
 335             if ((*vffi)->dwSignature == 0x004f0049) /* hack to detect unicode */
 336                 *vffi = (VS_FIXEDFILEINFO*)(buf+0x28);
 337             if ((*vffi)->dwSignature != VS_FFI_SIGNATURE)
 338                 WARN("Bad VS_FIXEDFILEINFO signature 0x%08lx\n",(*vffi)->dwSignature);
 339             return buf;
 340         }
 341     }
 342 }
 343
 344 static DWORD
 345 _error2vif(DWORD error) {
 346     switch (error) {
 347     case ERROR_ACCESS_DENIED:
 348         return VIF_ACCESSVIOLATION;
 349     case ERROR_SHARING_VIOLATION:
 350         return VIF_SHARINGVIOLATION;
 351     default:
 352         return 0;
 353     }
 354 }
 355
 356
 357 /******************************************************************************
 358  * VerInstallFileA [VERSION.@]
 359  */
 360 DWORD WINAPI VerInstallFileA(
 361         UINT flags,LPCSTR srcfilename,LPCSTR destfilename,LPCSTR srcdir,
 362         LPCSTR destdir,LPCSTR curdir,LPSTR tmpfile,UINT *tmpfilelen )
 363 {
 364     LPCSTR pdest;
 365     char        destfn[260],tmpfn[260],srcfn[260];
 366     HFILE       hfsrc,hfdst;
 367     DWORD       attr,ret,xret,tmplast;
 368     LPBYTE      buf1,buf2;
 369     OFSTRUCT    ofs;
 370
 371     TRACE("(%x,%s,%s,%s,%s,%s,%p,%d)\n",
 372             flags,srcfilename,destfilename,srcdir,destdir,curdir,tmpfile,*tmpfilelen
 373     );
 374     xret = 0;
 375     sprintf(srcfn,"%s\\%s",srcdir,srcfilename);
 376     if (!destdir || !*destdir) pdest = srcdir;
 377     else pdest = destdir;
 378     sprintf(destfn,"%s\\%s",pdest,destfilename);
 379     hfsrc=LZOpenFileA(srcfn,&ofs,OF_READ);
 380     if (hfsrc < 0)
 381         return VIF_CANNOTREADSRC;
 382     sprintf(tmpfn,"%s\\%s",pdest,destfilename);
 383     tmplast=strlen(pdest)+1;
 384     attr = GetFileAttributesA(tmpfn);
 385     if (attr != INVALID_FILE_ATTRIBUTES) {
 386         if (attr & FILE_ATTRIBUTE_READONLY) {
 387             LZClose(hfsrc);
 388             return VIF_WRITEPROT;
 389         }
 390         /* FIXME: check if file currently in use and return VIF_FILEINUSE */
 391     }
 392     attr = INVALID_FILE_ATTRIBUTES;
 393     if (flags & VIFF_FORCEINSTALL) {
 394         if (tmpfile[0]) {
 395             sprintf(tmpfn,"%s\\%s",pdest,tmpfile);
 396             tmplast = strlen(pdest)+1;
 397             attr = GetFileAttributesA(tmpfn);
 398             /* if it exists, it has been copied by the call before.
 399              * we jump over the copy part...
 400              */
 401         }
 402     }
 403     if (attr == INVALID_FILE_ATTRIBUTES) {
 404         char    *s;
 405
 406         GetTempFileNameA(pdest,"ver",0,tmpfn); /* should not fail ... */
 407         s=strrchr(tmpfn,'\\');
 408         if (s)
 409             tmplast = s-tmpfn;
 410         else
 411             tmplast = 0;
 412         hfdst = OpenFile(tmpfn,&ofs,OF_CREATE);
 413         if (hfdst == HFILE_ERROR) {
 414             LZClose(hfsrc);
 415             return VIF_CANNOTCREATE; /* | translated dos error */
 416         }
 417         ret = LZCopy(hfsrc,hfdst);
 418         _lclose(hfdst);
 419         if (((long) ret) < 0) {
 420             /* translate LZ errors into VIF_xxx */
 421             switch (ret) {
 422             case LZERROR_BADINHANDLE:
 423             case LZERROR_READ:
 424             case LZERROR_BADVALUE:
 425             case LZERROR_UNKNOWNALG:
 426                 ret = VIF_CANNOTREADSRC;
 427                 break;
 428             case LZERROR_BADOUTHANDLE:
 429             case LZERROR_WRITE:
 430                 ret = VIF_OUTOFSPACE;
 431                 break;
 432             case LZERROR_GLOBALLOC:
 433             case LZERROR_GLOBLOCK:
 434                 ret = VIF_OUTOFMEMORY;
 435                 break;
 436             default: /* unknown error, should not happen */
 437                 ret = 0;
 438                 break;
 439             }
 440             if (ret) {
 441                 LZClose(hfsrc);
 442                 return ret;
 443             }
 444         }
 445     }
 446     xret = 0;
 447     if (!(flags & VIFF_FORCEINSTALL)) {
 448         VS_FIXEDFILEINFO *destvffi,*tmpvffi;
 449         buf1 = _fetch_versioninfo(destfn,&destvffi);
 450         if (buf1) {
 451             buf2 = _fetch_versioninfo(tmpfn,&tmpvffi);
 452             if (buf2) {
 453                 char    *tbuf1,*tbuf2;
 454                 UINT    len1,len2;
 455
 456                 len1=len2=40;
 457
 458                 /* compare file versions */
 459                 if ((destvffi->dwFileVersionMS > tmpvffi->dwFileVersionMS)||
 460                     ((destvffi->dwFileVersionMS==tmpvffi->dwFileVersionMS)&&
 461                      (destvffi->dwFileVersionLS > tmpvffi->dwFileVersionLS)
 462                     )
 463                 )
 464                     xret |= VIF_MISMATCH|VIF_SRCOLD;
 465                 /* compare filetypes and filesubtypes */
 466                 if ((destvffi->dwFileType!=tmpvffi->dwFileType) ||
 467                     (destvffi->dwFileSubtype!=tmpvffi->dwFileSubtype)
 468                 )
 469                     xret |= VIF_MISMATCH|VIF_DIFFTYPE;
 470                 if (VerQueryValueA(buf1,"\\VarFileInfo\\Translation",(LPVOID*)&tbuf1,&len1) &&
 471                     VerQueryValueA(buf2,"\\VarFileInfo\\Translation",(LPVOID*)&tbuf2,&len2)
 472                 ) {
 473                     /* irgendwas mit tbuf1 und tbuf2 machen
 474                      * generiert DIFFLANG|MISMATCH
 475                      */
 476                 }
 477                 HeapFree(GetProcessHeap(), 0, buf2);
 478             } else
 479                 xret=VIF_MISMATCH|VIF_SRCOLD;
 480             HeapFree(GetProcessHeap(), 0, buf1);
 481         }
 482     }
 483     if (xret) {
 484         if (*tmpfilelen<strlen(tmpfn+tmplast)) {
 485             xret|=VIF_BUFFTOOSMALL;
 486             DeleteFileA(tmpfn);
 487         } else {
 488             strcpy(tmpfile,tmpfn+tmplast);
 489             *tmpfilelen = strlen(tmpfn+tmplast)+1;
 490             xret|=VIF_TEMPFILE;
 491         }
 492     } else {
 493         if (-1!=GetFileAttributesA(destfn))
 494             if (!DeleteFileA(destfn)) {
 495                 xret|=_error2vif(GetLastError())|VIF_CANNOTDELETE;
 496                 DeleteFileA(tmpfn);
 497                 LZClose(hfsrc);
 498                 return xret;
 499             }
 500         if ((!(flags & VIFF_DONTDELETEOLD))     &&
 501             curdir                              &&
 502             *curdir                             &&
 503             lstrcmpiA(curdir,pdest)
 504         ) {
 505             char curfn[260];
 506
 507             sprintf(curfn,"%s\\%s",curdir,destfilename);
 508             if (INVALID_FILE_ATTRIBUTES != GetFileAttributesA(curfn)) {
 509                 /* FIXME: check if in use ... if it is, VIF_CANNOTDELETECUR */
 510                 if (!DeleteFileA(curfn))
 511                     xret|=_error2vif(GetLastError())|VIF_CANNOTDELETECUR;
 512             }
 513         }
 514         if (!MoveFileA(tmpfn,destfn)) {
 515             xret|=_error2vif(GetLastError())|VIF_CANNOTRENAME;
 516             DeleteFileA(tmpfn);
 517         }
 518     }
 519     LZClose(hfsrc);
 520     return xret;
 521 }
 522
 523
 524 /******************************************************************************
 525  * VerInstallFileW                              [VERSION.@]
 526  */
 527 DWORD WINAPI VerInstallFileW(
 528         UINT flags,LPCWSTR srcfilename,LPCWSTR destfilename,LPCWSTR srcdir,
 529         LPCWSTR destdir,LPCWSTR curdir,LPWSTR tmpfile,UINT *tmpfilelen )
 530 {
 531     LPSTR wsrcf = NULL, wsrcd = NULL, wdestf = NULL, wdestd = NULL, wtmpf = NULL, wcurd = NULL;
 532     DWORD ret;
 533     UINT len;
 534
 535     if (srcfilename)
 536     {
 537         len = WideCharToMultiByte( CP_ACP, 0, srcfilename, -1, NULL, 0, NULL, NULL );
 538         if ((wsrcf = HeapAlloc( GetProcessHeap(), 0, len )))
 539             WideCharToMultiByte( CP_ACP, 0, srcfilename, -1, wsrcf, len, NULL, NULL );
 540     }
 541     if (srcdir)
 542     {
 543         len = WideCharToMultiByte( CP_ACP, 0, srcdir, -1, NULL, 0, NULL, NULL );
 544         if ((wsrcd = HeapAlloc( GetProcessHeap(), 0, len )))
 545             WideCharToMultiByte( CP_ACP, 0, srcdir, -1, wsrcd, len, NULL, NULL );
 546     }
 547     if (destfilename)
 548     {
 549         len = WideCharToMultiByte( CP_ACP, 0, destfilename, -1, NULL, 0, NULL, NULL );
 550         if ((wdestf = HeapAlloc( GetProcessHeap(), 0, len )))
 551             WideCharToMultiByte( CP_ACP, 0, destfilename, -1, wdestf, len, NULL, NULL );
 552     }
 553     if (destdir)
 554     {
 555         len = WideCharToMultiByte( CP_ACP, 0, destdir, -1, NULL, 0, NULL, NULL );
 556         if ((wdestd = HeapAlloc( GetProcessHeap(), 0, len )))
 557             WideCharToMultiByte( CP_ACP, 0, destdir, -1, wdestd, len, NULL, NULL );
 558     }
 559     if (curdir)
 560     {
 561         len = WideCharToMultiByte( CP_ACP, 0, curdir, -1, NULL, 0, NULL, NULL );
 562         if ((wcurd = HeapAlloc( GetProcessHeap(), 0, len )))
 563             WideCharToMultiByte( CP_ACP, 0, curdir, -1, wcurd, len, NULL, NULL );
 564     }
 565     len = *tmpfilelen * sizeof(WCHAR);
 566     wtmpf = HeapAlloc( GetProcessHeap(), 0, len );
 567     ret = VerInstallFileA(flags,wsrcf,wdestf,wsrcd,wdestd,wcurd,wtmpf,&len);
 568     if (!ret)
 569         *tmpfilelen = MultiByteToWideChar( CP_ACP, 0, wtmpf, -1, tmpfile, *tmpfilelen );
 570     else if (ret & VIF_BUFFTOOSMALL)
 571         *tmpfilelen = len;  /* FIXME: not correct */
 572
 573     HeapFree( GetProcessHeap(), 0, wsrcf );
 574     HeapFree( GetProcessHeap(), 0, wsrcd );
 575     HeapFree( GetProcessHeap(), 0, wdestf );
 576     HeapFree( GetProcessHeap(), 0, wdestd );
 577     HeapFree( GetProcessHeap(), 0, wtmpf );
 578     HeapFree( GetProcessHeap(), 0, wcurd );
 579     return ret;
 580 }