reactos/dll/win32/setupapi/misc.c

   1 /*
   2  * Setupapi miscellaneous functions
   3  *
   4  * Copyright 2005 Eric Kohl
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "setupapi_private.h"
  22
  23 WINE_DEFAULT_DEBUG_CHANNEL(setupapi);
  24
  25 /**************************************************************************
  26  * MyFree [SETUPAPI.@]
  27  *
  28  * Frees an allocated memory block from the process heap.
  29  *
  30  * PARAMS
  31  *     lpMem [I] pointer to memory block which will be freed
  32  *
  33  * RETURNS
  34  *     None
  35  */
  36 VOID WINAPI MyFree(LPVOID lpMem)
  37 {
  38     TRACE("%p\n", lpMem);
  39     HeapFree(GetProcessHeap(), 0, lpMem);
  40 }
  41
  42
  43 /**************************************************************************
  44  * MyMalloc [SETUPAPI.@]
  45  *
  46  * Allocates memory block from the process heap.
  47  *
  48  * PARAMS
  49  *     dwSize [I] size of the allocated memory block
  50  *
  51  * RETURNS
  52  *     Success: pointer to allocated memory block
  53  *     Failure: NULL
  54  */
  55 LPVOID WINAPI MyMalloc(DWORD dwSize)
  56 {
  57     TRACE("%lu\n", dwSize);
  58     return HeapAlloc(GetProcessHeap(), 0, dwSize);
  59 }
  60
  61
  62 /**************************************************************************
  63  * MyRealloc [SETUPAPI.@]
  64  *
  65  * Changes the size of an allocated memory block or allocates a memory
  66  * block from the process heap.
  67  *
  68  * PARAMS
  69  *     lpSrc  [I] pointer to memory block which will be resized
  70  *     dwSize [I] new size of the memory block
  71  *
  72  * RETURNS
  73  *     Success: pointer to the resized memory block
  74  *     Failure: NULL
  75  *
  76  * NOTES
  77  *     If lpSrc is a NULL-pointer, then MyRealloc allocates a memory
  78  *     block like MyMalloc.
  79  */
  80 LPVOID WINAPI MyRealloc(LPVOID lpSrc, DWORD dwSize)
  81 {
  82     TRACE("%p %lu\n", lpSrc, dwSize);
  83
  84     if (lpSrc == NULL)
  85         return HeapAlloc(GetProcessHeap(), 0, dwSize);
  86
  87     return HeapReAlloc(GetProcessHeap(), 0, lpSrc, dwSize);
  88 }
  89
  90
  91 /**************************************************************************
  92  * DuplicateString [SETUPAPI.@]
  93  *
  94  * Duplicates a unicode string.
  95  *
  96  * PARAMS
  97  *     lpSrc  [I] pointer to the unicode string that will be duplicated
  98  *
  99  * RETURNS
 100  *     Success: pointer to the duplicated unicode string
 101  *     Failure: NULL
 102  *
 103  * NOTES
 104  *     Call MyFree() to release the duplicated string.
 105  */
 106 LPWSTR WINAPI DuplicateString(LPCWSTR lpSrc)
 107 {
 108     LPWSTR lpDst;
 109
 110     TRACE("%s\n", debugstr_w(lpSrc));
 111
 112     lpDst = MyMalloc((lstrlenW(lpSrc) + 1) * sizeof(WCHAR));
 113     if (lpDst == NULL)
 114         return NULL;
 115
 116     strcpyW(lpDst, lpSrc);
 117
 118     return lpDst;
 119 }
 120
 121
 122 /**************************************************************************
 123  * QueryRegistryValue [SETUPAPI.@]
 124  *
 125  * Retrieves value data from the registry and allocates memory for the
 126  * value data.
 127  *
 128  * PARAMS
 129  *     hKey        [I] Handle of the key to query
 130  *     lpValueName [I] Name of value under hkey to query
 131  *     lpData      [O] Destination for the values contents,
 132  *     lpType      [O] Destination for the value type
 133  *     lpcbData    [O] Destination for the size of data
 134  *
 135  * RETURNS
 136  *     Success: ERROR_SUCCESS
 137  *     Failure: Otherwise
 138  *
 139  * NOTES
 140  *     Use MyFree to release the lpData buffer.
 141  */
 142 LONG WINAPI QueryRegistryValue(HKEY hKey,
 143                                LPCWSTR lpValueName,
 144                                LPBYTE  *lpData,
 145                                LPDWORD lpType,
 146                                LPDWORD lpcbData)
 147 {
 148     LONG lError;
 149
 150     TRACE("%p %s %p %p %p\n",
 151           hKey, debugstr_w(lpValueName), lpData, lpType, lpcbData);
 152
 153     /* Get required buffer size */
 154     *lpcbData = 0;
 155     lError = RegQueryValueExW(hKey, lpValueName, 0, lpType, NULL, lpcbData);
 156     if (lError != ERROR_SUCCESS)
 157         return lError;
 158
 159     /* Allocate buffer */
 160     *lpData = MyMalloc(*lpcbData);
 161     if (*lpData == NULL)
 162         return ERROR_NOT_ENOUGH_MEMORY;
 163
 164     /* Query registry value */
 165     lError = RegQueryValueExW(hKey, lpValueName, 0, lpType, *lpData, lpcbData);
 166     if (lError != ERROR_SUCCESS)
 167         MyFree(*lpData);
 168
 169     return lError;
 170 }
 171
 172
 173 /**************************************************************************
 174  * IsUserAdmin [SETUPAPI.@]
 175  *
 176  * Checks whether the current user is a member of the Administrators group.
 177  *
 178  * PARAMS
 179  *     None
 180  *
 181  * RETURNS
 182  *     Success: TRUE
 183  *     Failure: FALSE
 184  */
 185 BOOL WINAPI IsUserAdmin(VOID)
 186 {
 187     SID_IDENTIFIER_AUTHORITY Authority = {SECURITY_NT_AUTHORITY};
 188     HANDLE hToken;
 189     DWORD dwSize;
 190     PTOKEN_GROUPS lpGroups;
 191     PSID lpSid;
 192     DWORD i;
 193     BOOL bResult = FALSE;
 194
 195     TRACE("\n");
 196
 197     if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 198     {
 199         return FALSE;
 200     }
 201
 202     if (!GetTokenInformation(hToken, TokenGroups, NULL, 0, &dwSize))
 203     {
 204         if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
 205         {
 206             CloseHandle(hToken);
 207             return FALSE;
 208         }
 209     }
 210
 211     lpGroups = MyMalloc(dwSize);
 212     if (lpGroups == NULL)
 213     {
 214         CloseHandle(hToken);
 215         return FALSE;
 216     }
 217
 218     if (!GetTokenInformation(hToken, TokenGroups, lpGroups, dwSize, &dwSize))
 219     {
 220         MyFree(lpGroups);
 221         CloseHandle(hToken);
 222         return FALSE;
 223     }
 224
 225     CloseHandle(hToken);
 226
 227     if (!AllocateAndInitializeSid(&Authority, 2, SECURITY_BUILTIN_DOMAIN_RID,
 228                                   DOMAIN_ALIAS_RID_ADMINS, 0, 0, 0, 0, 0, 0,
 229                                   &lpSid))
 230     {
 231         MyFree(lpGroups);
 232         return FALSE;
 233     }
 234
 235     for (i = 0; i < lpGroups->GroupCount; i++)
 236     {
 237         if (EqualSid(lpSid, lpGroups->Groups[i].Sid))
 238         {
 239             bResult = TRUE;
 240             break;
 241         }
 242     }
 243
 244     FreeSid(lpSid);
 245     MyFree(lpGroups);
 246
 247     return bResult;
 248 }
 249
 250
 251 /**************************************************************************
 252  * MultiByteToUnicode [SETUPAPI.@]
 253  *
 254  * Converts a multi-byte string to a Unicode string.
 255  *
 256  * PARAMS
 257  *     lpMultiByteStr  [I] Multi-byte string to be converted
 258  *     uCodePage       [I] Code page
 259  *
 260  * RETURNS
 261  *     Success: pointer to the converted Unicode string
 262  *     Failure: NULL
 263  *
 264  * NOTE
 265  *     Use MyFree to release the returned Unicode string.
 266  */
 267 LPWSTR WINAPI MultiByteToUnicode(LPCSTR lpMultiByteStr, UINT uCodePage)
 268 {
 269     LPWSTR lpUnicodeStr;
 270     int nLength;
 271
 272     TRACE("%s %d\n", debugstr_a(lpMultiByteStr), uCodePage);
 273
 274     nLength = MultiByteToWideChar(uCodePage, 0, lpMultiByteStr,
 275                                   -1, NULL, 0);
 276     if (nLength == 0)
 277         return NULL;
 278
 279     lpUnicodeStr = MyMalloc(nLength * sizeof(WCHAR));
 280     if (lpUnicodeStr == NULL)
 281     {
 282         SetLastError(ERROR_NOT_ENOUGH_MEMORY);
 283         return NULL;
 284     }
 285
 286     if (!MultiByteToWideChar(uCodePage, 0, lpMultiByteStr,
 287                              nLength, lpUnicodeStr, nLength))
 288     {
 289         MyFree(lpUnicodeStr);
 290         return NULL;
 291     }
 292
 293     return lpUnicodeStr;
 294 }
 295
 296
 297 /**************************************************************************
 298  * UnicodeToMultiByte [SETUPAPI.@]
 299  *
 300  * Converts a Unicode string to a multi-byte string.
 301  *
 302  * PARAMS
 303  *     lpUnicodeStr  [I] Unicode string to be converted
 304  *     uCodePage     [I] Code page
 305  *
 306  * RETURNS
 307  *     Success: pointer to the converted multi-byte string
 308  *     Failure: NULL
 309  *
 310  * NOTE
 311  *     Use MyFree to release the returned multi-byte string.
 312  */
 313 LPSTR WINAPI UnicodeToMultiByte(LPCWSTR lpUnicodeStr, UINT uCodePage)
 314 {
 315     LPSTR lpMultiByteStr;
 316     int nLength;
 317
 318     TRACE("%s %d\n", debugstr_w(lpUnicodeStr), uCodePage);
 319
 320     nLength = WideCharToMultiByte(uCodePage, 0, lpUnicodeStr, -1,
 321                                   NULL, 0, NULL, NULL);
 322     if (nLength == 0)
 323         return NULL;
 324
 325     lpMultiByteStr = MyMalloc(nLength);
 326     if (lpMultiByteStr == NULL)
 327         return NULL;
 328
 329     if (!WideCharToMultiByte(uCodePage, 0, lpUnicodeStr, -1,
 330                              lpMultiByteStr, nLength, NULL, NULL))
 331     {
 332         MyFree(lpMultiByteStr);
 333         return NULL;
 334     }
 335
 336     return lpMultiByteStr;
 337 }
 338
 339
 340 /**************************************************************************
 341  * DoesUserHavePrivilege [SETUPAPI.@]
 342  *
 343  * Check whether the current user has got a given privilege.
 344  *
 345  * PARAMS
 346  *     lpPrivilegeName  [I] Name of the privilege to be checked
 347  *
 348  * RETURNS
 349  *     Success: TRUE
 350  *     Failure: FALSE
 351  */
 352 BOOL WINAPI DoesUserHavePrivilege(LPCWSTR lpPrivilegeName)
 353 {
 354     HANDLE hToken;
 355     DWORD dwSize;
 356     PTOKEN_PRIVILEGES lpPrivileges;
 357     LUID PrivilegeLuid;
 358     DWORD i;
 359     BOOL bResult = FALSE;
 360
 361     TRACE("%s\n", debugstr_w(lpPrivilegeName));
 362
 363     if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 364         return FALSE;
 365
 366     if (!GetTokenInformation(hToken, TokenPrivileges, NULL, 0, &dwSize))
 367     {
 368         if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
 369         {
 370             CloseHandle(hToken);
 371             return FALSE;
 372         }
 373     }
 374
 375     lpPrivileges = MyMalloc(dwSize);
 376     if (lpPrivileges == NULL)
 377     {
 378         CloseHandle(hToken);
 379         return FALSE;
 380     }
 381
 382     if (!GetTokenInformation(hToken, TokenPrivileges, lpPrivileges, dwSize, &dwSize))
 383     {
 384         MyFree(lpPrivileges);
 385         CloseHandle(hToken);
 386         return FALSE;
 387     }
 388
 389     CloseHandle(hToken);
 390
 391     if (!LookupPrivilegeValueW(NULL, lpPrivilegeName, &PrivilegeLuid))
 392     {
 393         MyFree(lpPrivileges);
 394         return FALSE;
 395     }
 396
 397     for (i = 0; i < lpPrivileges->PrivilegeCount; i++)
 398     {
 399         if (lpPrivileges->Privileges[i].Luid.HighPart == PrivilegeLuid.HighPart &&
 400             lpPrivileges->Privileges[i].Luid.LowPart == PrivilegeLuid.LowPart)
 401         {
 402             bResult = TRUE;
 403         }
 404     }
 405
 406     MyFree(lpPrivileges);
 407
 408     return bResult;
 409 }
 410
 411
 412 /**************************************************************************
 413  * EnablePrivilege [SETUPAPI.@]
 414  *
 415  * Enables or disables one of the current users privileges.
 416  *
 417  * PARAMS
 418  *     lpPrivilegeName  [I] Name of the privilege to be changed
 419  *     bEnable          [I] TRUE: Enables the privilege
 420  *                          FALSE: Disables the privilege
 421  *
 422  * RETURNS
 423  *     Success: TRUE
 424  *     Failure: FALSE
 425  */
 426 BOOL WINAPI EnablePrivilege(LPCWSTR lpPrivilegeName, BOOL bEnable)
 427 {
 428     TOKEN_PRIVILEGES Privileges;
 429     HANDLE hToken;
 430     BOOL bResult;
 431
 432     TRACE("%s %s\n", debugstr_w(lpPrivilegeName), bEnable ? "TRUE" : "FALSE");
 433
 434     if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 435         return FALSE;
 436
 437     Privileges.PrivilegeCount = 1;
 438     Privileges.Privileges[0].Attributes = (bEnable) ? SE_PRIVILEGE_ENABLED : 0;
 439
 440     if (!LookupPrivilegeValueW(NULL, lpPrivilegeName,
 441                                &Privileges.Privileges[0].Luid))
 442     {
 443         CloseHandle(hToken);
 444         return FALSE;
 445     }
 446
 447     bResult = AdjustTokenPrivileges(hToken, FALSE, &Privileges, 0, NULL, NULL);
 448
 449     CloseHandle(hToken);
 450
 451     return bResult;
 452 }
 453
 454
 455 /**************************************************************************
 456  * DelayedMove [SETUPAPI.@]
 457  *
 458  * Moves a file upon the next reboot.
 459  *
 460  * PARAMS
 461  *     lpExistingFileName  [I] Current file name
 462  *     lpNewFileName       [I] New file name
 463  *
 464  * RETURNS
 465  *     Success: TRUE
 466  *     Failure: FALSE
 467  */
 468 BOOL WINAPI DelayedMove(LPCWSTR lpExistingFileName, LPCWSTR lpNewFileName)
 469 {
 470     return MoveFileExW(lpExistingFileName, lpNewFileName,
 471                        MOVEFILE_REPLACE_EXISTING | MOVEFILE_DELAY_UNTIL_REBOOT);
 472 }
 473
 474
 475 /**************************************************************************
 476  * FileExists [SETUPAPI.@]
 477  *
 478  * Checks whether a file exists.
 479  *
 480  * PARAMS
 481  *     lpFileName     [I] Name of the file to check
 482  *     lpNewFileName  [O] Optional information about the existing file
 483  *
 484  * RETURNS
 485  *     Success: TRUE
 486  *     Failure: FALSE
 487  */
 488 BOOL WINAPI FileExists(LPCWSTR lpFileName, LPWIN32_FIND_DATAW lpFileFindData)
 489 {
 490     WIN32_FIND_DATAW FindData;
 491     HANDLE hFind;
 492     UINT uErrorMode;
 493     DWORD dwError;
 494
 495     uErrorMode = SetErrorMode(SEM_FAILCRITICALERRORS);
 496
 497     hFind = FindFirstFileW(lpFileName, &FindData);
 498     if (hFind == INVALID_HANDLE_VALUE)
 499     {
 500         dwError = GetLastError();
 501         SetErrorMode(uErrorMode);
 502         SetLastError(dwError);
 503         return FALSE;
 504     }
 505
 506     FindClose(hFind);
 507
 508     if (lpFileFindData)
 509         memcpy(lpFileFindData, &FindData, sizeof(WIN32_FIND_DATAW));
 510
 511     SetErrorMode(uErrorMode);
 512
 513     return TRUE;
 514 }
 515
 516
 517 /**************************************************************************
 518  * CaptureStringArg [SETUPAPI.@]
 519  *
 520  * Captures a UNICODE string.
 521  *
 522  * PARAMS
 523  *     lpSrc  [I] UNICODE string to be captured
 524  *     lpDst  [O] Pointer to the captured UNICODE string
 525  *
 526  * RETURNS
 527  *     Success: ERROR_SUCCESS
 528  *     Failure: ERROR_INVALID_PARAMETER
 529  *
 530  * NOTE
 531  *     Call MyFree to release the captured UNICODE string.
 532  */
 533 DWORD WINAPI CaptureStringArg(LPCWSTR pSrc, LPWSTR *pDst)
 534 {
 535     if (pDst == NULL)
 536         return ERROR_INVALID_PARAMETER;
 537
 538     *pDst = DuplicateString(pSrc);
 539
 540     return ERROR_SUCCESS;
 541 }
 542
 543
 544 /**************************************************************************
 545  * CaptureAndConvertAnsiArg [SETUPAPI.@]
 546  *
 547  * Captures an ANSI string and converts it to a UNICODE string.
 548  *
 549  * PARAMS
 550  *     lpSrc  [I] ANSI string to be captured
 551  *     lpDst  [O] Pointer to the captured UNICODE string
 552  *
 553  * RETURNS
 554  *     Success: ERROR_SUCCESS
 555  *     Failure: ERROR_INVALID_PARAMETER
 556  *
 557  * NOTE
 558  *     Call MyFree to release the captured UNICODE string.
 559  */
 560 DWORD WINAPI CaptureAndConvertAnsiArg(LPCSTR pSrc, LPWSTR *pDst)
 561 {
 562     if (pDst == NULL)
 563         return ERROR_INVALID_PARAMETER;
 564
 565     *pDst = MultiByteToUnicode(pSrc, CP_ACP);
 566
 567     return ERROR_SUCCESS;
 568 }
 569
 570
 571 /**************************************************************************
 572  * OpenAndMapFileForRead [SETUPAPI.@]
 573  *
 574  * Open and map a file to a buffer.
 575  *
 576  * PARAMS
 577  *     lpFileName [I] Name of the file to be opened
 578  *     lpSize     [O] Pointer to the file size
 579  *     lpFile     [0] Pointer to the file handle
 580  *     lpMapping  [0] Pointer to the mapping handle
 581  *     lpBuffer   [0] Pointer to the file buffer
 582  *
 583  * RETURNS
 584  *     Success: ERROR_SUCCESS
 585  *     Failure: Other
 586  *
 587  * NOTE
 588  *     Call UnmapAndCloseFile to release the file.
 589  */
 590 DWORD WINAPI OpenAndMapFileForRead(LPCWSTR lpFileName,
 591                                    LPDWORD lpSize,
 592                                    LPHANDLE lpFile,
 593                                    LPHANDLE lpMapping,
 594                                    LPVOID *lpBuffer)
 595 {
 596     DWORD dwError;
 597
 598     TRACE("%s %p %p %p %p\n",
 599           debugstr_w(lpFileName), lpSize, lpFile, lpMapping, lpBuffer);
 600
 601     *lpFile = CreateFileW(lpFileName, GENERIC_READ, FILE_SHARE_READ, NULL,
 602                           OPEN_EXISTING, 0, NULL);
 603     if (*lpFile == INVALID_HANDLE_VALUE)
 604         return GetLastError();
 605
 606     *lpSize = GetFileSize(*lpFile, NULL);
 607     if (*lpSize == INVALID_FILE_SIZE)
 608     {
 609         dwError = GetLastError();
 610         CloseHandle(*lpFile);
 611         return dwError;
 612     }
 613
 614     *lpMapping = CreateFileMappingW(*lpFile, NULL, PAGE_READONLY, 0,
 615                                     *lpSize, NULL);
 616     if (*lpMapping == NULL)
 617     {
 618         dwError = GetLastError();
 619         CloseHandle(*lpFile);
 620         return dwError;
 621     }
 622
 623     *lpBuffer = MapViewOfFile(*lpMapping, FILE_MAP_READ, 0, 0, *lpSize);
 624     if (*lpBuffer == NULL)
 625     {
 626         dwError = GetLastError();
 627         CloseHandle(*lpMapping);
 628         CloseHandle(*lpFile);
 629         return dwError;
 630     }
 631
 632     return ERROR_SUCCESS;
 633 }
 634
 635
 636 /**************************************************************************
 637  * UnmapAndCloseFile [SETUPAPI.@]
 638  *
 639  * Unmap and close a mapped file.
 640  *
 641  * PARAMS
 642  *     hFile    [I] Handle to the file
 643  *     hMapping [I] Handle to the file mapping
 644  *     lpBuffer [I] Pointer to the file buffer
 645  *
 646  * RETURNS
 647  *     Success: TRUE
 648  *     Failure: FALSE
 649  */
 650 BOOL WINAPI UnmapAndCloseFile(HANDLE hFile, HANDLE hMapping, LPVOID lpBuffer)
 651 {
 652     TRACE("%p %p %p\n",
 653           hFile, hMapping, lpBuffer);
 654
 655     if (!UnmapViewOfFile(lpBuffer))
 656         return FALSE;
 657
 658     if (!CloseHandle(hMapping))
 659         return FALSE;
 660
 661     if (!CloseHandle(hFile))
 662         return FALSE;
 663
 664     return TRUE;
 665 }
 666
 667
 668 /**************************************************************************
 669  * StampFileSecurity [SETUPAPI.@]
 670  *
 671  * Assign a new security descriptor to the given file.
 672  *
 673  * PARAMS
 674  *     lpFileName          [I] Name of the file
 675  *     pSecurityDescriptor [I] New security descriptor
 676  *
 677  * RETURNS
 678  *     Success: ERROR_SUCCESS
 679  *     Failure: other
 680  */
 681 DWORD WINAPI StampFileSecurity(LPCWSTR lpFileName, PSECURITY_DESCRIPTOR pSecurityDescriptor)
 682 {
 683     TRACE("%s %p\n", debugstr_w(lpFileName), pSecurityDescriptor);
 684
 685     if (!SetFileSecurityW(lpFileName, OWNER_SECURITY_INFORMATION |
 686                           GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION,
 687                           pSecurityDescriptor))
 688         return GetLastError();
 689
 690     return ERROR_SUCCESS;
 691 }
 692
 693
 694 /**************************************************************************
 695  * TakeOwnershipOfFile [SETUPAPI.@]
 696  *
 697  * Takes the ownership of the given file.
 698  *
 699  * PARAMS
 700  *     lpFileName [I] Name of the file
 701  *
 702  * RETURNS
 703  *     Success: ERROR_SUCCESS
 704  *     Failure: other
 705  */
 706 DWORD WINAPI TakeOwnershipOfFile(LPCWSTR lpFileName)
 707 {
 708     SECURITY_DESCRIPTOR SecDesc;
 709     HANDLE hToken = NULL;
 710     PTOKEN_OWNER pOwner = NULL;
 711     DWORD dwError;
 712     DWORD dwSize;
 713
 714     TRACE("%s\n", debugstr_w(lpFileName));
 715
 716     if (!OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken))
 717         return GetLastError();
 718
 719     if (!GetTokenInformation(hToken, TokenOwner, NULL, 0, &dwSize))
 720     {
 721         goto fail;
 722     }
 723
 724     pOwner = (PTOKEN_OWNER)MyMalloc(dwSize);
 725     if (pOwner == NULL)
 726     {
 727         CloseHandle(hToken);
 728         return ERROR_NOT_ENOUGH_MEMORY;
 729     }
 730
 731     if (!GetTokenInformation(hToken, TokenOwner, pOwner, dwSize, &dwSize))
 732     {
 733         goto fail;
 734     }
 735
 736     if (!InitializeSecurityDescriptor(&SecDesc, SECURITY_DESCRIPTOR_REVISION))
 737     {
 738         goto fail;
 739     }
 740
 741     if (!SetSecurityDescriptorOwner(&SecDesc, pOwner->Owner, FALSE))
 742     {
 743         goto fail;
 744     }
 745
 746     if (!SetFileSecurityW(lpFileName, OWNER_SECURITY_INFORMATION, &SecDesc))
 747     {
 748         goto fail;
 749     }
 750
 751     MyFree(pOwner);
 752     CloseHandle(hToken);
 753
 754     return ERROR_SUCCESS;
 755
 756 fail:;
 757     dwError = GetLastError();
 758
 759     if (pOwner != NULL)
 760         MyFree(pOwner);
 761
 762     if (hToken != NULL)
 763         CloseHandle(hToken);
 764
 765     return dwError;
 766 }
 767
 768
 769 /**************************************************************************
 770  * RetreiveFileSecurity [SETUPAPI.@]
 771  *
 772  * Retrieve the security descriptor that is associated with the given file.
 773  *
 774  * PARAMS
 775  *     lpFileName [I] Name of the file
 776  *
 777  * RETURNS
 778  *     Success: ERROR_SUCCESS
 779  *     Failure: other
 780  */
 781 DWORD WINAPI RetreiveFileSecurity(LPCWSTR lpFileName,
 782                                   PSECURITY_DESCRIPTOR *pSecurityDescriptor)
 783 {
 784     PSECURITY_DESCRIPTOR SecDesc;
 785     DWORD dwSize = 0x100;
 786     DWORD dwError;
 787
 788     TRACE("%s %p\n", debugstr_w(lpFileName), pSecurityDescriptor);
 789
 790     SecDesc = (PSECURITY_DESCRIPTOR)MyMalloc(dwSize);
 791     if (SecDesc == NULL)
 792         return ERROR_NOT_ENOUGH_MEMORY;
 793
 794     if (GetFileSecurityW(lpFileName, OWNER_SECURITY_INFORMATION |
 795                          GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION,
 796                          SecDesc, dwSize, &dwSize))
 797     {
 798       *pSecurityDescriptor = SecDesc;
 799       return ERROR_SUCCESS;
 800     }
 801
 802     dwError = GetLastError();
 803     if (dwError != ERROR_INSUFFICIENT_BUFFER)
 804     {
 805         MyFree(SecDesc);
 806         return dwError;
 807     }
 808
 809     SecDesc = (PSECURITY_DESCRIPTOR)MyRealloc(SecDesc, dwSize);
 810     if (SecDesc == NULL)
 811         return ERROR_NOT_ENOUGH_MEMORY;
 812
 813     if (GetFileSecurityW(lpFileName, OWNER_SECURITY_INFORMATION |
 814                          GROUP_SECURITY_INFORMATION | DACL_SECURITY_INFORMATION,
 815                          SecDesc, dwSize, &dwSize))
 816     {
 817       *pSecurityDescriptor = SecDesc;
 818       return ERROR_SUCCESS;
 819     }
 820
 821     dwError = GetLastError();
 822     MyFree(SecDesc);
 823
 824     return dwError;
 825 }
 826
 827
 828 /**************************************************************************
 829  * AssertFail [SETUPAPI.@]
 830  *
 831  * Display an assertion message.
 832  *
 833  * PARAMS
 834  *     lpFile    [I] File name
 835  *     uLine     [I] Line number
 836  *     lpMessage [I] Assertion message
 837  *
 838  * RETURNS
 839  *     Nothing
 840  */
 841 VOID WINAPI AssertFail(LPSTR lpFile, UINT uLine, LPSTR lpMessage)
 842 {
 843     CHAR szModule[MAX_PATH];
 844     CHAR szBuffer[2048];
 845     LPSTR lpName;
 846 //    LPSTR lpBuffer;
 847
 848     TRACE("%s %u %s\n", lpFile, uLine, lpMessage);
 849
 850     GetModuleFileNameA(hInstance, szModule, MAX_PATH);
 851     lpName = strrchr(szModule, '\\');
 852     if (lpName != NULL)
 853         lpName++;
 854     else
 855         lpName = szModule;
 856
 857     wsprintfA(szBuffer,
 858               "Assertion failure at line %u in file %s: %s\n\nCall DebugBreak()?",
 859               uLine, lpFile, lpMessage);
 860
 861     if (MessageBoxA(NULL, szBuffer, lpName, MB_SETFOREGROUND |
 862                     MB_TASKMODAL | MB_ICONERROR | MB_YESNO) == IDYES)
 863         DebugBreak();
 864 }
 865
 866
 867 /**************************************************************************
 868  * GetSetFileTimestamp [SETUPAPI.@]
 869  *
 870  * Gets or sets a files timestamp.
 871  *
 872  * PARAMS
 873  *     lpFileName       [I]   File name
 874  *     lpCreationTime   [I/O] Creation time
 875  *     lpLastAccessTime [I/O] Last access time
 876  *     lpLastWriteTime  [I/O] Last write time
 877  *     bSetFileTime     [I]   TRUE: Set file times
 878  *                            FALSE: Get file times
 879  *
 880  * RETURNS
 881  *     Success: ERROR_SUCCESS
 882  *     Failure: other
 883  */
 884 DWORD WINAPI GetSetFileTimestamp(LPCWSTR lpFileName,
 885                                  LPFILETIME lpCreationTime,
 886                                  LPFILETIME lpLastAccessTime,
 887                                  LPFILETIME lpLastWriteTime,
 888                                  BOOLEAN bSetFileTime)
 889 {
 890     HANDLE hFile;
 891     BOOLEAN bRet;
 892     DWORD dwError = ERROR_SUCCESS;
 893
 894     TRACE("%s %p %p %p %x\n", debugstr_w(lpFileName), lpCreationTime,
 895           lpLastAccessTime, lpLastWriteTime, bSetFileTime);
 896
 897     hFile = CreateFileW(lpFileName,
 898                         bSetFileTime ? GENERIC_WRITE : GENERIC_READ,
 899                         FILE_SHARE_READ | FILE_SHARE_WRITE,
 900                         NULL,
 901                         OPEN_EXISTING,
 902                         0,
 903                         NULL);
 904
 905     if (hFile == INVALID_HANDLE_VALUE)
 906         return GetLastError();
 907
 908     if (bSetFileTime)
 909         bRet = SetFileTime(hFile, lpCreationTime, lpLastAccessTime, lpLastWriteTime);
 910     else
 911         bRet = GetFileTime(hFile, lpCreationTime, lpLastAccessTime, lpLastWriteTime);
 912
 913     if (bRet == FALSE)
 914         dwError = GetLastError();
 915
 916      CloseHandle(hFile);
 917
 918      return dwError;
 919 }
 920
 921
 922 /**************************************************************************
 923  * MyGetFileTitle [SETUPAPI.@]
 924  *
 925  * Returns a pointer to the last part of a fully qualified file name.
 926  *
 927  * PARAMS
 928  *     lpFileName [I] File name
 929  *
 930  * RETURNS
 931  *     Pointer to a files name.
 932  */
 933 LPWSTR WINAPI
 934 MyGetFileTitle(LPCWSTR lpFileName)
 935 {
 936     LPWSTR ptr;
 937     LPWSTR ret;
 938     WCHAR c;
 939
 940     TRACE("%s\n", debugstr_w(lpFileName));
 941
 942     ptr = (LPWSTR)lpFileName;
 943     ret = ptr;
 944     while (TRUE)
 945     {
 946         c = *ptr;
 947
 948         if (c == 0)
 949             break;
 950
 951         ptr++;
 952         if (c == (WCHAR)'\\' || c == (WCHAR)'/' || c == (WCHAR)':')
 953             ret = ptr;
 954     }
 955
 956     return ret;
 957 }
 958
 959
 960 /**************************************************************************
 961  * ConcatenatePaths [SETUPAPI.@]
 962  *
 963  * Concatenates two paths.
 964  *
 965  * PARAMS
 966  *     lpPath         [I/O] Path to append path to
 967  *     lpAppend       [I]   Path to append
 968  *     dwBufferSize   [I]   Size of the path buffer
 969  *     lpRequiredSize [O]   Required size for the concatenated path. Optional
 970  *
 971  * RETURNS
 972  *     Success: TRUE
 973  *     Failure: FALSE
 974  */
 975 BOOL WINAPI
 976 ConcatenatePaths(LPWSTR lpPath,
 977                  LPCWSTR lpAppend,
 978                  DWORD dwBufferSize,
 979                  LPDWORD lpRequiredSize)
 980 {
 981     DWORD dwPathSize;
 982     DWORD dwAppendSize;
 983     DWORD dwTotalSize;
 984     BOOL bBackslash = FALSE;
 985
 986     TRACE("%s %s %lu %p\n", debugstr_w(lpPath), debugstr_w(lpAppend),
 987           dwBufferSize, lpRequiredSize);
 988
 989     dwPathSize = lstrlenW(lpPath);
 990
 991     /* Ignore trailing backslash */
 992     if (lpPath[dwPathSize - 1] == (WCHAR)'\\')
 993         dwPathSize--;
 994
 995     dwAppendSize = lstrlenW(lpAppend);
 996
 997     /* Does the source string have a leading backslash? */
 998     if (lpAppend[0] == (WCHAR)'\\')
 999     {
1000         bBackslash = TRUE;
1001         dwAppendSize--;
1002     }
1003
1004     dwTotalSize = dwPathSize + dwAppendSize + 2;
1005     if (lpRequiredSize != NULL)
1006         *lpRequiredSize = dwTotalSize;
1007
1008     /* Append a backslash to the destination string */
1009     if (bBackslash == FALSE)
1010     {
1011         if (dwPathSize < dwBufferSize)
1012         {
1013             lpPath[dwPathSize - 1] = (WCHAR)'\\';
1014             dwPathSize++;
1015         }
1016     }
1017
1018     if (dwPathSize + dwAppendSize < dwBufferSize)
1019     {
1020         lstrcpynW(&lpPath[dwPathSize],
1021                   lpAppend,
1022                   dwAppendSize);
1023     }
1024
1025     if (dwBufferSize >= dwTotalSize)
1026         lpPath[dwTotalSize - 1] = 0;
1027
1028     return (dwBufferSize >= dwTotalSize);
1029 }
1030
1031
1032 /**************************************************************************
1033  * CenterWindowRelativeToParent [SETUPAPI.@]
1034  *
1035  * Centers a window relative to its parent.
1036  *
1037  * PARAMS
1038  *     hwnd [I] Window to center.
1039  *
1040  * RETURNS
1041  *     None
1042  */
1043 VOID WINAPI
1044 CenterWindowRelativeToParent(HWND hwnd)
1045 {
1046     HWND hwndOwner;
1047     POINT ptOrigin;
1048     RECT rcWindow;
1049     RECT rcOwner;
1050     INT nWindowWidth, nWindowHeight;
1051     INT nOwnerWidth, nOwnerHeight;
1052     INT posX, posY;
1053
1054     hwndOwner = GetWindow(hwnd, GW_OWNER);
1055     if (hwndOwner == NULL)
1056         return;
1057
1058     ptOrigin.x = 0;
1059     ptOrigin.y = 0;
1060     ClientToScreen(hwndOwner, &ptOrigin);
1061
1062     GetWindowRect(hwnd, &rcWindow);
1063     GetClientRect(hwndOwner, &rcOwner);
1064
1065     nWindowWidth = rcWindow.right - rcWindow.left;
1066     nWindowHeight = rcWindow.bottom - rcWindow.top;
1067
1068     nOwnerWidth = rcOwner.right - rcOwner.left;
1069     nOwnerHeight = rcOwner.bottom - rcOwner.top;
1070
1071     posX = ((nOwnerWidth - nWindowWidth) / 2) + ptOrigin.x;
1072     posY = ((nOwnerHeight - nWindowHeight) / 2) + ptOrigin.y;
1073
1074     MoveWindow(hwnd, posX, posY, nWindowHeight, nWindowWidth, 0);
1075 }
1076
1077
1078 /**************************************************************************
1079  * GetVersionInfoFromImage [SETUPAPI.@]
1080  *
1081  * Retrieves version information for a given file.
1082  *
1083  * PARAMS
1084  *     lpFileName       [I] File name
1085  *     lpFileVersion    [O] Pointer to the full file version
1086  *     lpVersionVarSize [O] Pointer to the size of the variable version
1087  *                          information
1088  *
1089  * RETURNS
1090  *     Success: TRUE
1091  *     Failure: FALSE
1092  */
1093 BOOL WINAPI
1094 GetVersionInfoFromImage(LPWSTR lpFileName,
1095                         PULARGE_INTEGER lpFileVersion,
1096                         LPWORD lpVersionVarSize)
1097 {
1098     DWORD dwHandle;
1099     DWORD dwSize;
1100     LPVOID lpInfo;
1101     UINT uSize;
1102     VS_FIXEDFILEINFO *lpFixedInfo;
1103     LPWORD lpVarSize;
1104
1105     dwSize = GetFileVersionInfoSizeW(lpFileName, &dwHandle);
1106     if (dwSize == 0)
1107         return FALSE;
1108
1109     lpInfo = MyMalloc(dwSize);
1110     if (lpInfo == NULL)
1111         return FALSE;
1112
1113     if (!GetFileVersionInfoW(lpFileName, 0, dwSize, lpInfo))
1114     {
1115         MyFree(lpInfo);
1116         return FALSE;
1117     }
1118
1119     if (!VerQueryValueW(lpInfo, L"\\",
1120                         (LPVOID*)&lpFixedInfo, &uSize))
1121     {
1122         MyFree(lpInfo);
1123         return FALSE;
1124     }
1125
1126     lpFileVersion->LowPart = lpFixedInfo->dwFileVersionLS;
1127     lpFileVersion->HighPart = lpFixedInfo->dwFileVersionMS;
1128
1129     *lpVersionVarSize = 0;
1130     if (!VerQueryValueW(lpInfo, L"\\VerFileInfo\\Translation",
1131                         (LPVOID*)&lpVarSize, &uSize))
1132     {
1133         MyFree(lpInfo);
1134         return TRUE;
1135     }
1136
1137     if (uSize >= 4)
1138     {
1139         *lpVersionVarSize = *lpVarSize;
1140     }
1141
1142     MyFree(lpInfo);
1143
1144     return TRUE;
1145 }