reactos/dll/win32/msi/install.c

   1 /*
   2  * Implementation of the Microsoft Installer (msi.dll)
   3  *
   4  * Copyright 2005 Aric Stewart for CodeWeavers
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 /* Msi top level apis directly related to installs */
  22
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winerror.h"
  28 #include "wine/debug.h"
  29 #include "msi.h"
  30 #include "msidefs.h"
  31 #include "msipriv.h"
  32 #include "winuser.h"
  33 #include "wine/unicode.h"
  34 #include "action.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(msi);
  37
  38 /***********************************************************************
  39  * MsiDoActionA       (MSI.@)
  40  */
  41 UINT WINAPI MsiDoActionA( MSIHANDLE hInstall, LPCSTR szAction )
  42 {
  43     LPWSTR szwAction;
  44     UINT ret;
  45
  46     TRACE("%s\n", debugstr_a(szAction));
  47
  48     szwAction = strdupAtoW(szAction);
  49     if (szAction && !szwAction)
  50         return ERROR_FUNCTION_FAILED;
  51
  52     ret = MsiDoActionW( hInstall, szwAction );
  53     msi_free( szwAction );
  54     return ret;
  55 }
  56
  57 /***********************************************************************
  58  * MsiDoActionW       (MSI.@)
  59  */
  60 UINT WINAPI MsiDoActionW( MSIHANDLE hInstall, LPCWSTR szAction )
  61 {
  62     MSIPACKAGE *package;
  63     UINT ret;
  64
  65     TRACE("%s\n",debugstr_w(szAction));
  66
  67     if (!szAction)
  68         return ERROR_INVALID_PARAMETER;
  69
  70     package = msihandle2msiinfo( hInstall, MSIHANDLETYPE_PACKAGE );
  71     if (!package)
  72         return ERROR_INVALID_HANDLE;
  73
  74     ret = ACTION_PerformUIAction( package, szAction );
  75     msiobj_release( &package->hdr );
  76
  77     return ret;
  78 }
  79
  80 /***********************************************************************
  81  * MsiSequenceA       (MSI.@)
  82  */
  83 UINT WINAPI MsiSequenceA( MSIHANDLE hInstall, LPCSTR szTable, INT iSequenceMode )
  84 {
  85     LPWSTR szwTable;
  86     UINT ret;
  87
  88     TRACE("%s\n", debugstr_a(szTable));
  89
  90     szwTable = strdupAtoW(szTable);
  91     if (szTable && !szwTable)
  92         return ERROR_FUNCTION_FAILED;
  93
  94     ret = MsiSequenceW( hInstall, szwTable, iSequenceMode );
  95     msi_free( szwTable );
  96     return ret;
  97 }
  98
  99 /***********************************************************************
 100  * MsiSequenceW       (MSI.@)
 101  */
 102 UINT WINAPI MsiSequenceW( MSIHANDLE hInstall, LPCWSTR szTable, INT iSequenceMode )
 103 {
 104     MSIPACKAGE *package;
 105     UINT ret;
 106
 107     TRACE("%s\n", debugstr_w(szTable));
 108
 109     package = msihandle2msiinfo( hInstall, MSIHANDLETYPE_PACKAGE );
 110     if (!package)
 111         return ERROR_INVALID_HANDLE;
 112
 113     ret = MSI_Sequence( package, szTable, iSequenceMode );
 114     msiobj_release( &package->hdr );
 115
 116     return ret;
 117 }
 118
 119 UINT msi_strcpy_to_awstring( LPCWSTR str, awstring *awbuf, DWORD *sz )
 120 {
 121     UINT len, r = ERROR_SUCCESS;
 122
 123     if (awbuf->str.w && !sz )
 124         return ERROR_INVALID_PARAMETER;
 125
 126     if (!sz)
 127         return r;
 128
 129     if (awbuf->unicode)
 130     {
 131         len = lstrlenW( str );
 132         if (awbuf->str.w)
 133             lstrcpynW( awbuf->str.w, str, *sz );
 134     }
 135     else
 136     {
 137         len = WideCharToMultiByte( CP_ACP, 0, str, -1, NULL, 0, NULL, NULL );
 138         if (len)
 139             len--;
 140         WideCharToMultiByte( CP_ACP, 0, str, -1, awbuf->str.a, *sz, NULL, NULL );
 141         if ( *sz && (len >= *sz) )
 142             awbuf->str.a[*sz - 1] = 0;
 143     }
 144
 145     if (awbuf->str.w && len >= *sz)
 146         r = ERROR_MORE_DATA;
 147     *sz = len;
 148     return r;
 149 }
 150
 151 /***********************************************************************
 152  * MsiGetTargetPath   (internal)
 153  */
 154 UINT WINAPI MSI_GetTargetPath( MSIHANDLE hInstall, LPCWSTR szFolder,
 155                                awstring *szPathBuf, DWORD* pcchPathBuf )
 156 {
 157     MSIPACKAGE *package;
 158     LPWSTR path;
 159     UINT r;
 160
 161     if (!szFolder)
 162         return ERROR_INVALID_PARAMETER;
 163
 164     package = msihandle2msiinfo( hInstall, MSIHANDLETYPE_PACKAGE );
 165     if (!package)
 166         return ERROR_INVALID_HANDLE;
 167
 168     path = resolve_folder( package, szFolder, FALSE, FALSE, NULL );
 169     msiobj_release( &package->hdr );
 170
 171     if (!path)
 172         return ERROR_DIRECTORY;
 173
 174     r = msi_strcpy_to_awstring( path, szPathBuf, pcchPathBuf );
 175     msi_free( path );
 176     return r;
 177 }
 178
 179 /***********************************************************************
 180  * MsiGetTargetPathA        (MSI.@)
 181  */
 182 UINT WINAPI MsiGetTargetPathA( MSIHANDLE hInstall, LPCSTR szFolder,
 183                                LPSTR szPathBuf, DWORD* pcchPathBuf )
 184 {
 185     LPWSTR szwFolder;
 186     awstring path;
 187     UINT r;
 188
 189     TRACE("%s %p %p\n", debugstr_a(szFolder), szPathBuf, pcchPathBuf);
 190
 191     szwFolder = strdupAtoW(szFolder);
 192     if (szFolder && !szwFolder)
 193         return ERROR_FUNCTION_FAILED;
 194
 195     path.unicode = FALSE;
 196     path.str.a = szPathBuf;
 197
 198     r = MSI_GetTargetPath( hInstall, szwFolder, &path, pcchPathBuf );
 199
 200     msi_free( szwFolder );
 201
 202     return r;
 203 }
 204
 205 /***********************************************************************
 206  * MsiGetTargetPathW        (MSI.@)
 207  */
 208 UINT WINAPI MsiGetTargetPathW( MSIHANDLE hInstall, LPCWSTR szFolder,
 209                                LPWSTR szPathBuf, DWORD* pcchPathBuf )
 210 {
 211     awstring path;
 212
 213     TRACE("%s %p %p\n", debugstr_w(szFolder), szPathBuf, pcchPathBuf);
 214
 215     path.unicode = TRUE;
 216     path.str.w = szPathBuf;
 217
 218     return MSI_GetTargetPath( hInstall, szFolder, &path, pcchPathBuf );
 219 }
 220
 221 /***********************************************************************
 222  * MsiGetSourcePath   (internal)
 223  */
 224 static UINT MSI_GetSourcePath( MSIHANDLE hInstall, LPCWSTR szFolder,
 225                                awstring *szPathBuf, DWORD* pcchPathBuf )
 226 {
 227     MSIPACKAGE *package;
 228     LPWSTR path;
 229     UINT r;
 230
 231     TRACE("%s %p %p\n", debugstr_w(szFolder), szPathBuf, pcchPathBuf );
 232
 233     if (!szFolder)
 234         return ERROR_INVALID_PARAMETER;
 235
 236     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 237     if (!package)
 238         return ERROR_INVALID_HANDLE;
 239
 240     if (szPathBuf->str.w && !pcchPathBuf )
 241     {
 242         msiobj_release( &package->hdr );
 243         return ERROR_INVALID_PARAMETER;
 244     }
 245
 246     path = resolve_folder(package, szFolder, TRUE, FALSE, NULL);
 247     msiobj_release( &package->hdr );
 248
 249     TRACE("path = %s\n",debugstr_w(path));
 250     if (!path)
 251         return ERROR_DIRECTORY;
 252
 253     r = msi_strcpy_to_awstring( path, szPathBuf, pcchPathBuf );
 254     msi_free( path );
 255     return r;
 256 }
 257
 258 /***********************************************************************
 259  * MsiGetSourcePathA     (MSI.@)
 260  */
 261 UINT WINAPI MsiGetSourcePathA( MSIHANDLE hInstall, LPCSTR szFolder,
 262                                LPSTR szPathBuf, DWORD* pcchPathBuf )
 263 {
 264     LPWSTR folder;
 265     awstring str;
 266     UINT r;
 267
 268     TRACE("%s %p %p\n", szFolder, debugstr_a(szPathBuf), pcchPathBuf);
 269
 270     str.unicode = FALSE;
 271     str.str.a = szPathBuf;
 272
 273     folder = strdupAtoW( szFolder );
 274     r = MSI_GetSourcePath( hInstall, folder, &str, pcchPathBuf );
 275     msi_free( folder );
 276
 277     return r;
 278 }
 279
 280 /***********************************************************************
 281  * MsiGetSourcePathW     (MSI.@)
 282  */
 283 UINT WINAPI MsiGetSourcePathW( MSIHANDLE hInstall, LPCWSTR szFolder,
 284                                LPWSTR szPathBuf, DWORD* pcchPathBuf )
 285 {
 286     awstring str;
 287
 288     TRACE("%s %p %p\n", debugstr_w(szFolder), szPathBuf, pcchPathBuf );
 289
 290     str.unicode = TRUE;
 291     str.str.w = szPathBuf;
 292
 293     return MSI_GetSourcePath( hInstall, szFolder, &str, pcchPathBuf );
 294 }
 295
 296 /***********************************************************************
 297  * MsiSetTargetPathA  (MSI.@)
 298  */
 299 UINT WINAPI MsiSetTargetPathA( MSIHANDLE hInstall, LPCSTR szFolder,
 300                                LPCSTR szFolderPath )
 301 {
 302     LPWSTR szwFolder = NULL, szwFolderPath = NULL;
 303     UINT rc = ERROR_OUTOFMEMORY;
 304
 305     if ( !szFolder || !szFolderPath )
 306         return ERROR_INVALID_PARAMETER;
 307
 308     szwFolder = strdupAtoW(szFolder);
 309     szwFolderPath = strdupAtoW(szFolderPath);
 310     if (!szwFolder || !szwFolderPath)
 311         goto end;
 312
 313     rc = MsiSetTargetPathW( hInstall, szwFolder, szwFolderPath );
 314
 315 end:
 316     msi_free(szwFolder);
 317     msi_free(szwFolderPath);
 318
 319     return rc;
 320 }
 321
 322 /*
 323  * Ok my original interpretation of this was wrong. And it looks like msdn has
 324  * changed a bit also. The given folder path does not have to actually already
 325  * exist, it just cannot be read only and must be a legal folder path.
 326  */
 327 UINT MSI_SetTargetPathW(MSIPACKAGE *package, LPCWSTR szFolder,
 328                              LPCWSTR szFolderPath)
 329 {
 330     DWORD attrib;
 331     LPWSTR path = NULL;
 332     LPWSTR path2 = NULL;
 333     MSIFOLDER *folder;
 334
 335     TRACE("(%p %s %s)\n",package, debugstr_w(szFolder),debugstr_w(szFolderPath));
 336
 337     attrib = GetFileAttributesW(szFolderPath);
 338     if ( attrib != INVALID_FILE_ATTRIBUTES &&
 339           (!(attrib & FILE_ATTRIBUTE_DIRECTORY) ||
 340            attrib & FILE_ATTRIBUTE_OFFLINE ||
 341            attrib & FILE_ATTRIBUTE_READONLY))
 342         return ERROR_FUNCTION_FAILED;
 343
 344     path = resolve_folder(package,szFolder,FALSE,FALSE,&folder);
 345     if (!path)
 346         return ERROR_DIRECTORY;
 347
 348     if (attrib == INVALID_FILE_ATTRIBUTES)
 349     {
 350         if (!CreateDirectoryW(szFolderPath,NULL))
 351         {
 352             msi_free( path );
 353             return ERROR_FUNCTION_FAILED;
 354         }
 355         RemoveDirectoryW(szFolderPath);
 356     }
 357
 358     msi_free(folder->Property);
 359     folder->Property = build_directory_name(2, szFolderPath, NULL);
 360
 361     if (lstrcmpiW(path, folder->Property) == 0)
 362     {
 363         /*
 364          *  Resolved Target has not really changed, so just
 365          *  set this folder and do not recalculate everything.
 366          */
 367         msi_free(folder->ResolvedTarget);
 368         folder->ResolvedTarget = NULL;
 369         path2 = resolve_folder(package,szFolder,FALSE,TRUE,NULL);
 370         msi_free(path2);
 371     }
 372     else
 373     {
 374         MSIFOLDER *f;
 375
 376         LIST_FOR_EACH_ENTRY( f, &package->folders, MSIFOLDER, entry )
 377         {
 378             msi_free(f->ResolvedTarget);
 379             f->ResolvedTarget=NULL;
 380         }
 381
 382         LIST_FOR_EACH_ENTRY( f, &package->folders, MSIFOLDER, entry )
 383         {
 384             path2 = resolve_folder(package, f->Directory, FALSE, TRUE, NULL);
 385             msi_free(path2);
 386         }
 387     }
 388     msi_free(path);
 389
 390     return ERROR_SUCCESS;
 391 }
 392
 393 /***********************************************************************
 394  * MsiSetTargetPathW  (MSI.@)
 395  */
 396 UINT WINAPI MsiSetTargetPathW(MSIHANDLE hInstall, LPCWSTR szFolder,
 397                              LPCWSTR szFolderPath)
 398 {
 399     MSIPACKAGE *package;
 400     UINT ret;
 401
 402     TRACE("(%s %s)\n",debugstr_w(szFolder),debugstr_w(szFolderPath));
 403
 404     if ( !szFolder || !szFolderPath )
 405         return ERROR_INVALID_PARAMETER;
 406
 407     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 408     if (!package)
 409         return ERROR_INVALID_HANDLE;
 410
 411     ret = MSI_SetTargetPathW( package, szFolder, szFolderPath );
 412     msiobj_release( &package->hdr );
 413     return ret;
 414 }
 415
 416 /***********************************************************************
 417  *           MsiGetMode    (MSI.@)
 418  *
 419  * Returns an internal installer state (if it is running in a mode iRunMode)
 420  *
 421  * PARAMS
 422  *   hInstall    [I]  Handle to the installation
 423  *   hRunMode    [I]  Checking run mode
 424  *        MSIRUNMODE_ADMIN             Administrative mode
 425  *        MSIRUNMODE_ADVERTISE         Advertisement mode
 426  *        MSIRUNMODE_MAINTENANCE       Maintenance mode
 427  *        MSIRUNMODE_ROLLBACKENABLED   Rollback is enabled
 428  *        MSIRUNMODE_LOGENABLED        Log file is writing
 429  *        MSIRUNMODE_OPERATIONS        Operations in progress??
 430  *        MSIRUNMODE_REBOOTATEND       We need to reboot after installation completed
 431  *        MSIRUNMODE_REBOOTNOW         We need to reboot to continue the installation
 432  *        MSIRUNMODE_CABINET           Files from cabinet are installed
 433  *        MSIRUNMODE_SOURCESHORTNAMES  Long names in source files is suppressed
 434  *        MSIRUNMODE_TARGETSHORTNAMES  Long names in destination files is suppressed
 435  *        MSIRUNMODE_RESERVED11        Reserved
 436  *        MSIRUNMODE_WINDOWS9X         Running under Windows95/98
 437  *        MSIRUNMODE_ZAWENABLED        Demand installation is supported
 438  *        MSIRUNMODE_RESERVED14        Reserved
 439  *        MSIRUNMODE_RESERVED15        Reserved
 440  *        MSIRUNMODE_SCHEDULED         called from install script
 441  *        MSIRUNMODE_ROLLBACK          called from rollback script
 442  *        MSIRUNMODE_COMMIT            called from commit script
 443  *
 444  * RETURNS
 445  *    In the state: TRUE
 446  *    Not in the state: FALSE
 447  *
 448  */
 449
 450 BOOL WINAPI MsiGetMode(MSIHANDLE hInstall, MSIRUNMODE iRunMode)
 451 {
 452     BOOL r = FALSE;
 453
 454     switch (iRunMode)
 455     {
 456     case MSIRUNMODE_WINDOWS9X:
 457         if (GetVersion() & 0x80000000)
 458             r = TRUE;
 459         break;
 460
 461     case MSIRUNMODE_RESERVED11:
 462     case MSIRUNMODE_RESERVED14:
 463     case MSIRUNMODE_RESERVED15:
 464         break;
 465
 466     case MSIRUNMODE_SCHEDULED:
 467     case MSIRUNMODE_ROLLBACK:
 468     case MSIRUNMODE_COMMIT:
 469         break;
 470
 471     default:
 472         FIXME("%ld %d\n", hInstall, iRunMode);
 473         r = TRUE;
 474     }
 475
 476     return r;
 477 }
 478
 479 /***********************************************************************
 480  *           MsiSetMode    (MSI.@)
 481  */
 482 BOOL WINAPI MsiSetMode(MSIHANDLE hInstall, MSIRUNMODE iRunMode, BOOL fState)
 483 {
 484     switch (iRunMode)
 485     {
 486     case MSIRUNMODE_RESERVED11:
 487     case MSIRUNMODE_WINDOWS9X:
 488     case MSIRUNMODE_RESERVED14:
 489     case MSIRUNMODE_RESERVED15:
 490         return FALSE;
 491     default:
 492         FIXME("%ld %d %d\n", hInstall, iRunMode, fState);
 493     }
 494     return TRUE;
 495 }
 496
 497 /***********************************************************************
 498  * MsiSetFeatureStateA (MSI.@)
 499  *
 500  * According to the docs, when this is called it immediately recalculates
 501  * all the component states as well
 502  */
 503 UINT WINAPI MsiSetFeatureStateA(MSIHANDLE hInstall, LPCSTR szFeature,
 504                                 INSTALLSTATE iState)
 505 {
 506     LPWSTR szwFeature = NULL;
 507     UINT rc;
 508
 509     szwFeature = strdupAtoW(szFeature);
 510
 511     if (!szwFeature)
 512         return ERROR_FUNCTION_FAILED;
 513
 514     rc = MsiSetFeatureStateW(hInstall,szwFeature, iState);
 515
 516     msi_free(szwFeature);
 517
 518     return rc;
 519 }
 520
 521
 522
 523 UINT WINAPI MSI_SetFeatureStateW(MSIPACKAGE* package, LPCWSTR szFeature,
 524                                 INSTALLSTATE iState)
 525 {
 526     UINT rc = ERROR_SUCCESS;
 527     MSIFEATURE *feature, *child;
 528
 529     TRACE(" %s to %i\n",debugstr_w(szFeature), iState);
 530
 531     feature = get_loaded_feature(package,szFeature);
 532     if (!feature)
 533         return ERROR_UNKNOWN_FEATURE;
 534
 535     if (iState == INSTALLSTATE_ADVERTISED &&
 536         feature->Attributes & msidbFeatureAttributesDisallowAdvertise)
 537         return ERROR_FUNCTION_FAILED;
 538
 539     feature->ActionRequest = iState;
 540     feature->Action = iState;
 541
 542     ACTION_UpdateComponentStates(package,szFeature);
 543
 544     /* update all the features that are children of this feature */
 545     LIST_FOR_EACH_ENTRY( child, &package->features, MSIFEATURE, entry )
 546     {
 547         if (lstrcmpW(szFeature, child->Feature_Parent) == 0)
 548             MSI_SetFeatureStateW(package, child->Feature, iState);
 549     }
 550
 551     return rc;
 552 }
 553
 554 /***********************************************************************
 555  * MsiSetFeatureStateW (MSI.@)
 556  */
 557 UINT WINAPI MsiSetFeatureStateW(MSIHANDLE hInstall, LPCWSTR szFeature,
 558                                 INSTALLSTATE iState)
 559 {
 560     MSIPACKAGE* package;
 561     UINT rc = ERROR_SUCCESS;
 562
 563     TRACE(" %s to %i\n",debugstr_w(szFeature), iState);
 564
 565     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 566     if (!package)
 567         return ERROR_INVALID_HANDLE;
 568
 569     rc = MSI_SetFeatureStateW(package,szFeature,iState);
 570
 571     msiobj_release( &package->hdr );
 572     return rc;
 573 }
 574
 575 /***********************************************************************
 576 * MsiGetFeatureStateA   (MSI.@)
 577 */
 578 UINT WINAPI MsiGetFeatureStateA(MSIHANDLE hInstall, LPSTR szFeature,
 579                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 580 {
 581     LPWSTR szwFeature = NULL;
 582     UINT rc;
 583
 584     szwFeature = strdupAtoW(szFeature);
 585
 586     rc = MsiGetFeatureStateW(hInstall,szwFeature,piInstalled, piAction);
 587
 588     msi_free( szwFeature);
 589
 590     return rc;
 591 }
 592
 593 UINT MSI_GetFeatureStateW(MSIPACKAGE *package, LPWSTR szFeature,
 594                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 595 {
 596     MSIFEATURE *feature;
 597
 598     feature = get_loaded_feature(package,szFeature);
 599     if (!feature)
 600         return ERROR_UNKNOWN_FEATURE;
 601
 602     if (piInstalled)
 603         *piInstalled = feature->Installed;
 604
 605     if (piAction)
 606         *piAction = feature->Action;
 607
 608     TRACE("returning %i %i\n", feature->Installed, feature->Action);
 609
 610     return ERROR_SUCCESS;
 611 }
 612
 613 /***********************************************************************
 614 * MsiGetFeatureStateW   (MSI.@)
 615 */
 616 UINT WINAPI MsiGetFeatureStateW(MSIHANDLE hInstall, LPWSTR szFeature,
 617                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 618 {
 619     MSIPACKAGE* package;
 620     UINT ret;
 621
 622     TRACE("%ld %s %p %p\n", hInstall, debugstr_w(szFeature), piInstalled,
 623 piAction);
 624
 625     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 626     if (!package)
 627         return ERROR_INVALID_HANDLE;
 628     ret = MSI_GetFeatureStateW(package, szFeature, piInstalled, piAction);
 629     msiobj_release( &package->hdr );
 630     return ret;
 631 }
 632
 633 /***********************************************************************
 634  * MsiSetComponentStateA (MSI.@)
 635  */
 636 UINT WINAPI MsiSetComponentStateA(MSIHANDLE hInstall, LPCSTR szComponent,
 637                                   INSTALLSTATE iState)
 638 {
 639     UINT rc;
 640     LPWSTR szwComponent = strdupAtoW(szComponent);
 641
 642     rc = MsiSetComponentStateW(hInstall, szwComponent, iState);
 643
 644     msi_free(szwComponent);
 645
 646     return rc;
 647 }
 648
 649 /***********************************************************************
 650  * MsiGetComponentStateA (MSI.@)
 651  */
 652 UINT WINAPI MsiGetComponentStateA(MSIHANDLE hInstall, LPSTR szComponent,
 653                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 654 {
 655     LPWSTR szwComponent= NULL;
 656     UINT rc;
 657
 658     szwComponent= strdupAtoW(szComponent);
 659
 660     rc = MsiGetComponentStateW(hInstall,szwComponent,piInstalled, piAction);
 661
 662     msi_free( szwComponent);
 663
 664     return rc;
 665 }
 666
 667 static UINT MSI_SetComponentStateW(MSIPACKAGE *package, LPCWSTR szComponent,
 668                                    INSTALLSTATE iState)
 669 {
 670     MSICOMPONENT *comp;
 671
 672     TRACE("%p %s %d\n", package, debugstr_w(szComponent), iState);
 673
 674     comp = get_loaded_component(package, szComponent);
 675     if (!comp)
 676         return ERROR_UNKNOWN_COMPONENT;
 677
 678     comp->Installed = iState;
 679
 680     return ERROR_SUCCESS;
 681 }
 682
 683 UINT MSI_GetComponentStateW(MSIPACKAGE *package, LPWSTR szComponent,
 684                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 685 {
 686     MSICOMPONENT *comp;
 687
 688     TRACE("%p %s %p %p\n", package, debugstr_w(szComponent),
 689            piInstalled, piAction);
 690
 691     comp = get_loaded_component(package,szComponent);
 692     if (!comp)
 693         return ERROR_UNKNOWN_COMPONENT;
 694
 695     if (piInstalled)
 696         *piInstalled = comp->Installed;
 697
 698     if (piAction)
 699         *piAction = comp->Action;
 700
 701     TRACE("states (%i, %i)\n", comp->Installed, comp->Action );
 702
 703     return ERROR_SUCCESS;
 704 }
 705
 706 /***********************************************************************
 707  * MsiSetComponentStateW (MSI.@)
 708  */
 709 UINT WINAPI MsiSetComponentStateW(MSIHANDLE hInstall, LPCWSTR szComponent,
 710                                   INSTALLSTATE iState)
 711 {
 712     MSIPACKAGE* package;
 713     UINT ret;
 714
 715     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 716     if (!package)
 717         return ERROR_INVALID_HANDLE;
 718     ret = MSI_SetComponentStateW(package, szComponent, iState);
 719     msiobj_release(&package->hdr);
 720     return ret;
 721 }
 722
 723 /***********************************************************************
 724  * MsiGetComponentStateW (MSI.@)
 725  */
 726 UINT WINAPI MsiGetComponentStateW(MSIHANDLE hInstall, LPWSTR szComponent,
 727                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 728 {
 729     MSIPACKAGE* package;
 730     UINT ret;
 731
 732     TRACE("%ld %s %p %p\n", hInstall, debugstr_w(szComponent),
 733            piInstalled, piAction);
 734
 735     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 736     if (!package)
 737         return ERROR_INVALID_HANDLE;
 738     ret = MSI_GetComponentStateW( package, szComponent, piInstalled, piAction);
 739     msiobj_release( &package->hdr );
 740     return ret;
 741 }
 742
 743 /***********************************************************************
 744  * MsiGetLanguage (MSI.@)
 745  */
 746 LANGID WINAPI MsiGetLanguage(MSIHANDLE hInstall)
 747 {
 748     MSIPACKAGE* package;
 749     LANGID langid;
 750     LPWSTR buffer;
 751     static const WCHAR szProductLanguage[] =
 752         {'P','r','o','d','u','c','t','L','a','n','g','u','a','g','e',0};
 753
 754     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 755     if (!package)
 756         return ERROR_INVALID_HANDLE;
 757
 758     buffer = msi_dup_property( package, szProductLanguage );
 759     langid = atoiW(buffer);
 760
 761     msi_free(buffer);
 762     msiobj_release (&package->hdr);
 763     return langid;
 764 }