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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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     LPSTR lpszFilename,
 127     LPSTR lpszWinDir,
 128     LPSTR 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     /* Check to see if the file exists and is inuse by another application */
 186     if (lpszFilename && testFileExistenceA(curDir, lpszFilename, FALSE)) {
 187         if (lpszFilename && !testFileExistenceA(curDir, lpszFilename, TRUE))
 188            retval |= VFF_FILEINUSE;
 189     }
 190
 191     curDirSizeReq = strlen(curDir) + 1;
 192     destDirSizeReq = strlen(destDir) + 1;
 193
 194     /* Make sure that the pointers to the size of the buffers are
 195        valid; if not, do NOTHING with that buffer.  If that pointer
 196        is valid, then make sure that the buffer pointer is valid, too! */
 197
 198     if(lpuDestDirLen && lpszDestDir)
 199     {
 200         if (*lpuDestDirLen < destDirSizeReq) retval |= VFF_BUFFTOOSMALL;
 201         lstrcpynA(lpszDestDir, destDir, *lpuDestDirLen);
 202         *lpuDestDirLen = destDirSizeReq;
 203     }
 204     if(lpuCurDirLen && lpszCurDir)
 205     {
 206         if(*lpuCurDirLen < curDirSizeReq) retval |= VFF_BUFFTOOSMALL;
 207         lstrcpynA(lpszCurDir, curDir, *lpuCurDirLen);
 208         *lpuCurDirLen = curDirSizeReq;
 209     }
 210
 211     TRACE("ret = %lu (%s%s%s) curdir=%s destdir=%s\n", retval,
 212           (retval & VFF_CURNEDEST) ? "VFF_CURNEDEST " : "",
 213           (retval & VFF_FILEINUSE) ? "VFF_FILEINUSE " : "",
 214           (retval & VFF_BUFFTOOSMALL) ? "VFF_BUFFTOOSMALL " : "",
 215           debugstr_a(lpszCurDir), debugstr_a(lpszDestDir));
 216
 217     return retval;
 218 }
 219
 220 /*****************************************************************************
 221  * VerFindFileW                                         [VERSION.@]
 222  */
 223 DWORD WINAPI VerFindFileW( UINT flags,LPWSTR lpszFilename,LPWSTR lpszWinDir,
 224                            LPWSTR lpszAppDir, LPWSTR lpszCurDir,UINT *lpuCurDirLen,
 225                            LPWSTR lpszDestDir,UINT *lpuDestDirLen )
 226 {
 227     static const WCHAR emptyW;
 228     DWORD retval = 0;
 229     const WCHAR *curDir;
 230     const WCHAR *destDir;
 231     unsigned int curDirSizeReq;
 232     unsigned int destDirSizeReq;
 233     WCHAR systemDir[MAX_PATH];
 234
 235     /* Print out debugging information */
 236     TRACE("flags = %x filename=%s windir=%s appdir=%s curdirlen=%p(%u) destdirlen=%p(%u)\n",
 237           flags, debugstr_w(lpszFilename), debugstr_w(lpszWinDir), debugstr_w(lpszAppDir),
 238           lpuCurDirLen, lpuCurDirLen ? *lpuCurDirLen : 0,
 239           lpuDestDirLen, lpuDestDirLen ? *lpuDestDirLen : 0 );
 240
 241     /* Figure out where the file should go; shared files default to the
 242        system directory */
 243
 244     GetSystemDirectoryW(systemDir, sizeof(systemDir)/sizeof(WCHAR));
 245     curDir = &emptyW;
 246     destDir = &emptyW;
 247
 248     if(flags & VFFF_ISSHAREDFILE)
 249     {
 250         destDir = systemDir;
 251         /* Were we given a filename?  If so, try to find the file. */
 252         if(lpszFilename)
 253         {
 254             if(testFileExistenceW(destDir, lpszFilename, FALSE)) curDir = destDir;
 255             else if(lpszAppDir && testFileExistenceW(lpszAppDir, lpszFilename, FALSE))
 256             {
 257                 curDir = lpszAppDir;
 258                 retval |= VFF_CURNEDEST;
 259             }
 260         }
 261     }
 262     else /* not a shared file */
 263     {
 264         if(lpszAppDir)
 265         {
 266             destDir = lpszAppDir;
 267             if(lpszFilename)
 268             {
 269                 if(testFileExistenceW(destDir, lpszFilename, FALSE)) curDir = destDir;
 270                 else if(testFileExistenceW(systemDir, lpszFilename, FALSE))
 271                 {
 272                     curDir = systemDir;
 273                     retval |= VFF_CURNEDEST;
 274                 }
 275             }
 276         }
 277     }
 278
 279     if (lpszFilename && !testFileExistenceW(curDir, lpszFilename, TRUE))
 280         retval |= VFF_FILEINUSE;
 281
 282     curDirSizeReq = strlenW(curDir) + 1;
 283     destDirSizeReq = strlenW(destDir) + 1;
 284
 285     /* Make sure that the pointers to the size of the buffers are
 286        valid; if not, do NOTHING with that buffer.  If that pointer
 287        is valid, then make sure that the buffer pointer is valid, too! */
 288
 289     if(lpuDestDirLen && lpszDestDir)
 290     {
 291         if (*lpuDestDirLen < destDirSizeReq) retval |= VFF_BUFFTOOSMALL;
 292         lstrcpynW(lpszDestDir, destDir, *lpuDestDirLen);
 293         *lpuDestDirLen = destDirSizeReq;
 294     }
 295     if(lpuCurDirLen && lpszCurDir)
 296     {
 297         if(*lpuCurDirLen < curDirSizeReq) retval |= VFF_BUFFTOOSMALL;
 298         lstrcpynW(lpszCurDir, curDir, *lpuCurDirLen);
 299         *lpuCurDirLen = curDirSizeReq;
 300     }
 301
 302     TRACE("ret = %lu (%s%s%s) curdir=%s destdir=%s\n", retval,
 303           (retval & VFF_CURNEDEST) ? "VFF_CURNEDEST " : "",
 304           (retval & VFF_FILEINUSE) ? "VFF_FILEINUSE " : "",
 305           (retval & VFF_BUFFTOOSMALL) ? "VFF_BUFFTOOSMALL " : "",
 306           debugstr_w(lpszCurDir), debugstr_w(lpszDestDir));
 307     return retval;
 308 }
 309
 310 static LPBYTE
 311 _fetch_versioninfo(LPSTR fn,VS_FIXEDFILEINFO **vffi) {
 312     DWORD       alloclen;
 313     LPBYTE      buf;
 314     DWORD       ret;
 315
 316     alloclen = 1000;
 317     buf=HeapAlloc(GetProcessHeap(), 0, alloclen);
 318     if(buf == NULL) {
 319         WARN("Memory exausted while fetching version info!\n");
 320         return NULL;
 321     }
 322     while (1) {
 323         ret = GetFileVersionInfoA(fn,0,alloclen,buf);
 324         if (!ret) {
 325             HeapFree(GetProcessHeap(), 0, buf);
 326             return NULL;
 327         }
 328         if (alloclen<*(WORD*)buf) {
 329             alloclen = *(WORD*)buf;
 330             HeapFree(GetProcessHeap(), 0, buf);
 331             buf = HeapAlloc(GetProcessHeap(), 0, alloclen);
 332             if(buf == NULL) {
 333                WARN("Memory exausted while fetching version info!\n");
 334                return NULL;
 335             }
 336         } else {
 337             *vffi = (VS_FIXEDFILEINFO*)(buf+0x14);
 338             if ((*vffi)->dwSignature == 0x004f0049) /* hack to detect unicode */
 339                 *vffi = (VS_FIXEDFILEINFO*)(buf+0x28);
 340             if ((*vffi)->dwSignature != VS_FFI_SIGNATURE)
 341                 WARN("Bad VS_FIXEDFILEINFO signature 0x%08lx\n",(*vffi)->dwSignature);
 342             return buf;
 343         }
 344     }
 345 }
 346
 347 static DWORD
 348 _error2vif(DWORD error) {
 349     switch (error) {
 350     case ERROR_ACCESS_DENIED:
 351         return VIF_ACCESSVIOLATION;
 352     case ERROR_SHARING_VIOLATION:
 353         return VIF_SHARINGVIOLATION;
 354     default:
 355         return 0;
 356     }
 357 }
 358
 359
 360 /******************************************************************************
 361  * VerInstallFileA [VERSION.@]
 362  */
 363 DWORD WINAPI VerInstallFileA(
 364         UINT flags,LPSTR srcfilename,LPSTR destfilename,LPSTR srcdir,
 365         LPSTR destdir,LPSTR curdir,LPSTR tmpfile,UINT *tmpfilelen )
 366 {
 367     LPCSTR pdest;
 368     char        destfn[260],tmpfn[260],srcfn[260];
 369     HFILE       hfsrc,hfdst;
 370     DWORD       attr,ret,xret,tmplast;
 371     LPBYTE      buf1,buf2;
 372     OFSTRUCT    ofs;
 373
 374     TRACE("(%x,%s,%s,%s,%s,%s,%p,%d)\n",
 375             flags,srcfilename,destfilename,srcdir,destdir,curdir,tmpfile,*tmpfilelen
 376     );
 377     xret = 0;
 378     sprintf(srcfn,"%s\\%s",srcdir,srcfilename);
 379     if (!destdir || !*destdir) pdest = srcdir;
 380     else pdest = destdir;
 381     sprintf(destfn,"%s\\%s",pdest,destfilename);
 382     hfsrc=LZOpenFileA(srcfn,&ofs,OF_READ);
 383     if (hfsrc < 0)
 384         return VIF_CANNOTREADSRC;
 385     sprintf(tmpfn,"%s\\%s",pdest,destfilename);
 386     tmplast=strlen(pdest)+1;
 387     attr = GetFileAttributesA(tmpfn);
 388     if (attr != INVALID_FILE_ATTRIBUTES) {
 389         if (attr & FILE_ATTRIBUTE_READONLY) {
 390             LZClose(hfsrc);
 391             return VIF_WRITEPROT;
 392         }
 393         /* FIXME: check if file currently in use and return VIF_FILEINUSE */
 394     }
 395     attr = INVALID_FILE_ATTRIBUTES;
 396     if (flags & VIFF_FORCEINSTALL) {
 397         if (tmpfile[0]) {
 398             sprintf(tmpfn,"%s\\%s",pdest,tmpfile);
 399             tmplast = strlen(pdest)+1;
 400             attr = GetFileAttributesA(tmpfn);
 401             /* if it exists, it has been copied by the call before.
 402              * we jump over the copy part...
 403              */
 404         }
 405     }
 406     if (attr == INVALID_FILE_ATTRIBUTES) {
 407         char    *s;
 408
 409         GetTempFileNameA(pdest,"ver",0,tmpfn); /* should not fail ... */
 410         s=strrchr(tmpfn,'\\');
 411         if (s)
 412             tmplast = s-tmpfn;
 413         else
 414             tmplast = 0;
 415         hfdst = OpenFile(tmpfn,&ofs,OF_CREATE);
 416         if (hfdst == HFILE_ERROR) {
 417             LZClose(hfsrc);
 418             return VIF_CANNOTCREATE; /* | translated dos error */
 419         }
 420         ret = LZCopy(hfsrc,hfdst);
 421         _lclose(hfdst);
 422         if (((LONG)ret) < 0) {
 423             /* translate LZ errors into VIF_xxx */
 424             switch (ret) {
 425             case LZERROR_BADINHANDLE:
 426             case LZERROR_READ:
 427             case LZERROR_BADVALUE:
 428             case LZERROR_UNKNOWNALG:
 429                 ret = VIF_CANNOTREADSRC;
 430                 break;
 431             case LZERROR_BADOUTHANDLE:
 432             case LZERROR_WRITE:
 433                 ret = VIF_OUTOFSPACE;
 434                 break;
 435             case LZERROR_GLOBALLOC:
 436             case LZERROR_GLOBLOCK:
 437                 ret = VIF_OUTOFMEMORY;
 438                 break;
 439             default: /* unknown error, should not happen */
 440                 ret = 0;
 441                 break;
 442             }
 443             if (ret) {
 444                 LZClose(hfsrc);
 445                 return ret;
 446             }
 447         }
 448     }
 449     xret = 0;
 450     if (!(flags & VIFF_FORCEINSTALL)) {
 451         VS_FIXEDFILEINFO *destvffi,*tmpvffi;
 452         buf1 = _fetch_versioninfo(destfn,&destvffi);
 453         if (buf1) {
 454             buf2 = _fetch_versioninfo(tmpfn,&tmpvffi);
 455             if (buf2) {
 456                 char    *tbuf1,*tbuf2;
 457                 static CHAR trans_array[] = "\\VarFileInfo\\Translation";
 458                 UINT    len1,len2;
 459
 460                 len1=len2=40;
 461
 462                 /* compare file versions */
 463                 if ((destvffi->dwFileVersionMS > tmpvffi->dwFileVersionMS)||
 464                     ((destvffi->dwFileVersionMS==tmpvffi->dwFileVersionMS)&&
 465                      (destvffi->dwFileVersionLS > tmpvffi->dwFileVersionLS)
 466                     )
 467                 )
 468                     xret |= VIF_MISMATCH|VIF_SRCOLD;
 469                 /* compare filetypes and filesubtypes */
 470                 if ((destvffi->dwFileType!=tmpvffi->dwFileType) ||
 471                     (destvffi->dwFileSubtype!=tmpvffi->dwFileSubtype)
 472                 )
 473                     xret |= VIF_MISMATCH|VIF_DIFFTYPE;
 474                 if (VerQueryValueA(buf1,trans_array,(LPVOID*)&tbuf1,&len1) &&
 475                     VerQueryValueA(buf2,trans_array,(LPVOID*)&tbuf2,&len2)
 476                 ) {
 477                     /* Do something with tbuf1 and tbuf2
 478                      * generates DIFFLANG|MISMATCH
 479                      */
 480                 }
 481                 HeapFree(GetProcessHeap(), 0, buf2);
 482             } else
 483                 xret=VIF_MISMATCH|VIF_SRCOLD;
 484             HeapFree(GetProcessHeap(), 0, buf1);
 485         }
 486     }
 487     if (xret) {
 488         if (*tmpfilelen<strlen(tmpfn+tmplast)) {
 489             xret|=VIF_BUFFTOOSMALL;
 490             DeleteFileA(tmpfn);
 491         } else {
 492             strcpy(tmpfile,tmpfn+tmplast);
 493             *tmpfilelen = strlen(tmpfn+tmplast)+1;
 494             xret|=VIF_TEMPFILE;
 495         }
 496     } else {
 497         if (INVALID_FILE_ATTRIBUTES!=GetFileAttributesA(destfn))
 498             if (!DeleteFileA(destfn)) {
 499                 xret|=_error2vif(GetLastError())|VIF_CANNOTDELETE;
 500                 DeleteFileA(tmpfn);
 501                 LZClose(hfsrc);
 502                 return xret;
 503             }
 504         if ((!(flags & VIFF_DONTDELETEOLD))     &&
 505             curdir                              &&
 506             *curdir                             &&
 507             lstrcmpiA(curdir,pdest)
 508         ) {
 509             char curfn[260];
 510
 511             sprintf(curfn,"%s\\%s",curdir,destfilename);
 512             if (INVALID_FILE_ATTRIBUTES != GetFileAttributesA(curfn)) {
 513                 /* FIXME: check if in use ... if it is, VIF_CANNOTDELETECUR */
 514                 if (!DeleteFileA(curfn))
 515                     xret|=_error2vif(GetLastError())|VIF_CANNOTDELETECUR;
 516             }
 517         }
 518         if (!MoveFileA(tmpfn,destfn)) {
 519             xret|=_error2vif(GetLastError())|VIF_CANNOTRENAME;
 520             DeleteFileA(tmpfn);
 521         }
 522     }
 523     LZClose(hfsrc);
 524     return xret;
 525 }
 526
 527
 528 /******************************************************************************
 529  * VerInstallFileW                              [VERSION.@]
 530  */
 531 DWORD WINAPI VerInstallFileW(
 532         UINT flags,LPWSTR srcfilename,LPWSTR destfilename,LPWSTR srcdir,
 533         LPWSTR destdir,LPWSTR curdir,LPWSTR tmpfile,UINT *tmpfilelen )
 534 {
 535     LPSTR wsrcf = NULL, wsrcd = NULL, wdestf = NULL, wdestd = NULL, wtmpf = NULL, wcurd = NULL;
 536     DWORD ret;
 537     UINT len;
 538
 539     if (srcfilename)
 540     {
 541         len = WideCharToMultiByte( CP_ACP, 0, srcfilename, -1, NULL, 0, NULL, NULL );
 542         if ((wsrcf = HeapAlloc( GetProcessHeap(), 0, len )))
 543             WideCharToMultiByte( CP_ACP, 0, srcfilename, -1, wsrcf, len, NULL, NULL );
 544     }
 545     if (srcdir)
 546     {
 547         len = WideCharToMultiByte( CP_ACP, 0, srcdir, -1, NULL, 0, NULL, NULL );
 548         if ((wsrcd = HeapAlloc( GetProcessHeap(), 0, len )))
 549             WideCharToMultiByte( CP_ACP, 0, srcdir, -1, wsrcd, len, NULL, NULL );
 550     }
 551     if (destfilename)
 552     {
 553         len = WideCharToMultiByte( CP_ACP, 0, destfilename, -1, NULL, 0, NULL, NULL );
 554         if ((wdestf = HeapAlloc( GetProcessHeap(), 0, len )))
 555             WideCharToMultiByte( CP_ACP, 0, destfilename, -1, wdestf, len, NULL, NULL );
 556     }
 557     if (destdir)
 558     {
 559         len = WideCharToMultiByte( CP_ACP, 0, destdir, -1, NULL, 0, NULL, NULL );
 560         if ((wdestd = HeapAlloc( GetProcessHeap(), 0, len )))
 561             WideCharToMultiByte( CP_ACP, 0, destdir, -1, wdestd, len, NULL, NULL );
 562     }
 563     if (curdir)
 564     {
 565         len = WideCharToMultiByte( CP_ACP, 0, curdir, -1, NULL, 0, NULL, NULL );
 566         if ((wcurd = HeapAlloc( GetProcessHeap(), 0, len )))
 567             WideCharToMultiByte( CP_ACP, 0, curdir, -1, wcurd, len, NULL, NULL );
 568     }
 569     len = *tmpfilelen * sizeof(WCHAR);
 570     wtmpf = HeapAlloc( GetProcessHeap(), 0, len );
 571     ret = VerInstallFileA(flags,wsrcf,wdestf,wsrcd,wdestd,wcurd,wtmpf,&len);
 572     if (!ret)
 573         *tmpfilelen = MultiByteToWideChar( CP_ACP, 0, wtmpf, -1, tmpfile, *tmpfilelen );
 574     else if (ret & VIF_BUFFTOOSMALL)
 575         *tmpfilelen = len;  /* FIXME: not correct */
 576
 577     HeapFree( GetProcessHeap(), 0, wsrcf );
 578     HeapFree( GetProcessHeap(), 0, wsrcd );
 579     HeapFree( GetProcessHeap(), 0, wdestf );
 580     HeapFree( GetProcessHeap(), 0, wdestd );
 581     HeapFree( GetProcessHeap(), 0, wtmpf );
 582     HeapFree( GetProcessHeap(), 0, wcurd );
 583     return ret;
 584 }