reactos/lib/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     FIXME("STUB (iRunMode=%i)\n",iRunMode);
 453     return TRUE;
 454 }
 455
 456 /***********************************************************************
 457  *           MsiSetMode    (MSI.@)
 458  */
 459 BOOL WINAPI MsiSetMode(MSIHANDLE hInstall, MSIRUNMODE iRunMode, BOOL fState)
 460 {
 461     switch (iRunMode)
 462     {
 463     case MSIRUNMODE_RESERVED11:
 464     case MSIRUNMODE_WINDOWS9X:
 465     case MSIRUNMODE_RESERVED14:
 466     case MSIRUNMODE_RESERVED15:
 467         return FALSE;
 468     default:
 469         FIXME("%ld %d %d\n", hInstall, iRunMode, fState);
 470     }
 471     return TRUE;
 472 }
 473
 474 /***********************************************************************
 475  * MsiSetFeatureStateA (MSI.@)
 476  *
 477  * According to the docs, when this is called it immediately recalculates
 478  * all the component states as well
 479  */
 480 UINT WINAPI MsiSetFeatureStateA(MSIHANDLE hInstall, LPCSTR szFeature,
 481                                 INSTALLSTATE iState)
 482 {
 483     LPWSTR szwFeature = NULL;
 484     UINT rc;
 485
 486     szwFeature = strdupAtoW(szFeature);
 487
 488     if (!szwFeature)
 489         return ERROR_FUNCTION_FAILED;
 490
 491     rc = MsiSetFeatureStateW(hInstall,szwFeature, iState);
 492
 493     msi_free(szwFeature);
 494
 495     return rc;
 496 }
 497
 498
 499
 500 UINT WINAPI MSI_SetFeatureStateW(MSIPACKAGE* package, LPCWSTR szFeature,
 501                                 INSTALLSTATE iState)
 502 {
 503     UINT rc = ERROR_SUCCESS;
 504     MSIFEATURE *feature, *child;
 505
 506     TRACE(" %s to %i\n",debugstr_w(szFeature), iState);
 507
 508     feature = get_loaded_feature(package,szFeature);
 509     if (!feature)
 510         return ERROR_UNKNOWN_FEATURE;
 511
 512     if (iState == INSTALLSTATE_ADVERTISED &&
 513         feature->Attributes & msidbFeatureAttributesDisallowAdvertise)
 514         return ERROR_FUNCTION_FAILED;
 515
 516     feature->ActionRequest = iState;
 517     feature->Action = iState;
 518
 519     ACTION_UpdateComponentStates(package,szFeature);
 520
 521     /* update all the features that are children of this feature */
 522     LIST_FOR_EACH_ENTRY( child, &package->features, MSIFEATURE, entry )
 523     {
 524         if (lstrcmpW(szFeature, child->Feature_Parent) == 0)
 525             MSI_SetFeatureStateW(package, child->Feature, iState);
 526     }
 527
 528     return rc;
 529 }
 530
 531 /***********************************************************************
 532  * MsiSetFeatureStateW (MSI.@)
 533  */
 534 UINT WINAPI MsiSetFeatureStateW(MSIHANDLE hInstall, LPCWSTR szFeature,
 535                                 INSTALLSTATE iState)
 536 {
 537     MSIPACKAGE* package;
 538     UINT rc = ERROR_SUCCESS;
 539
 540     TRACE(" %s to %i\n",debugstr_w(szFeature), iState);
 541
 542     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 543     if (!package)
 544         return ERROR_INVALID_HANDLE;
 545
 546     rc = MSI_SetFeatureStateW(package,szFeature,iState);
 547
 548     msiobj_release( &package->hdr );
 549     return rc;
 550 }
 551
 552 /***********************************************************************
 553 * MsiGetFeatureStateA   (MSI.@)
 554 */
 555 UINT WINAPI MsiGetFeatureStateA(MSIHANDLE hInstall, LPSTR szFeature,
 556                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 557 {
 558     LPWSTR szwFeature = NULL;
 559     UINT rc;
 560
 561     szwFeature = strdupAtoW(szFeature);
 562
 563     rc = MsiGetFeatureStateW(hInstall,szwFeature,piInstalled, piAction);
 564
 565     msi_free( szwFeature);
 566
 567     return rc;
 568 }
 569
 570 UINT MSI_GetFeatureStateW(MSIPACKAGE *package, LPWSTR szFeature,
 571                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 572 {
 573     MSIFEATURE *feature;
 574
 575     feature = get_loaded_feature(package,szFeature);
 576     if (!feature)
 577         return ERROR_UNKNOWN_FEATURE;
 578
 579     if (piInstalled)
 580         *piInstalled = feature->Installed;
 581
 582     if (piAction)
 583         *piAction = feature->Action;
 584
 585     TRACE("returning %i %i\n", feature->Installed, feature->Action);
 586
 587     return ERROR_SUCCESS;
 588 }
 589
 590 /***********************************************************************
 591 * MsiGetFeatureStateW   (MSI.@)
 592 */
 593 UINT WINAPI MsiGetFeatureStateW(MSIHANDLE hInstall, LPWSTR szFeature,
 594                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 595 {
 596     MSIPACKAGE* package;
 597     UINT ret;
 598
 599     TRACE("%ld %s %p %p\n", hInstall, debugstr_w(szFeature), piInstalled,
 600 piAction);
 601
 602     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 603     if (!package)
 604         return ERROR_INVALID_HANDLE;
 605     ret = MSI_GetFeatureStateW(package, szFeature, piInstalled, piAction);
 606     msiobj_release( &package->hdr );
 607     return ret;
 608 }
 609
 610 /***********************************************************************
 611  * MsiSetComponentStateA (MSI.@)
 612  */
 613 UINT WINAPI MsiSetComponentStateA(MSIHANDLE hInstall, LPCSTR szComponent,
 614                                   INSTALLSTATE iState)
 615 {
 616     UINT rc;
 617     LPWSTR szwComponent = strdupAtoW(szComponent);
 618
 619     rc = MsiSetComponentStateW(hInstall, szwComponent, iState);
 620
 621     msi_free(szwComponent);
 622
 623     return rc;
 624 }
 625
 626 /***********************************************************************
 627  * MsiGetComponentStateA (MSI.@)
 628  */
 629 UINT WINAPI MsiGetComponentStateA(MSIHANDLE hInstall, LPSTR szComponent,
 630                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 631 {
 632     LPWSTR szwComponent= NULL;
 633     UINT rc;
 634
 635     szwComponent= strdupAtoW(szComponent);
 636
 637     rc = MsiGetComponentStateW(hInstall,szwComponent,piInstalled, piAction);
 638
 639     msi_free( szwComponent);
 640
 641     return rc;
 642 }
 643
 644 static UINT MSI_SetComponentStateW(MSIPACKAGE *package, LPCWSTR szComponent,
 645                                    INSTALLSTATE iState)
 646 {
 647     MSICOMPONENT *comp;
 648
 649     TRACE("%p %s %d\n", package, debugstr_w(szComponent), iState);
 650
 651     comp = get_loaded_component(package, szComponent);
 652     if (!comp)
 653         return ERROR_UNKNOWN_COMPONENT;
 654
 655     comp->Installed = iState;
 656
 657     return ERROR_SUCCESS;
 658 }
 659
 660 UINT MSI_GetComponentStateW(MSIPACKAGE *package, LPWSTR szComponent,
 661                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 662 {
 663     MSICOMPONENT *comp;
 664
 665     TRACE("%p %s %p %p\n", package, debugstr_w(szComponent),
 666            piInstalled, piAction);
 667
 668     comp = get_loaded_component(package,szComponent);
 669     if (!comp)
 670         return ERROR_UNKNOWN_COMPONENT;
 671
 672     if (piInstalled)
 673         *piInstalled = comp->Installed;
 674
 675     if (piAction)
 676         *piAction = comp->Action;
 677
 678     TRACE("states (%i, %i)\n", comp->Installed, comp->Action );
 679
 680     return ERROR_SUCCESS;
 681 }
 682
 683 /***********************************************************************
 684  * MsiSetComponentStateW (MSI.@)
 685  */
 686 UINT WINAPI MsiSetComponentStateW(MSIHANDLE hInstall, LPCWSTR szComponent,
 687                                   INSTALLSTATE iState)
 688 {
 689     MSIPACKAGE* package;
 690     UINT ret;
 691
 692     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 693     if (!package)
 694         return ERROR_INVALID_HANDLE;
 695     ret = MSI_SetComponentStateW(package, szComponent, iState);
 696     msiobj_release(&package->hdr);
 697     return ret;
 698 }
 699
 700 /***********************************************************************
 701  * MsiGetComponentStateW (MSI.@)
 702  */
 703 UINT WINAPI MsiGetComponentStateW(MSIHANDLE hInstall, LPWSTR szComponent,
 704                   INSTALLSTATE *piInstalled, INSTALLSTATE *piAction)
 705 {
 706     MSIPACKAGE* package;
 707     UINT ret;
 708
 709     TRACE("%ld %s %p %p\n", hInstall, debugstr_w(szComponent),
 710            piInstalled, piAction);
 711
 712     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 713     if (!package)
 714         return ERROR_INVALID_HANDLE;
 715     ret = MSI_GetComponentStateW( package, szComponent, piInstalled, piAction);
 716     msiobj_release( &package->hdr );
 717     return ret;
 718 }
 719
 720 /***********************************************************************
 721  * MsiGetLanguage (MSI.@)
 722  */
 723 LANGID WINAPI MsiGetLanguage(MSIHANDLE hInstall)
 724 {
 725     MSIPACKAGE* package;
 726     LANGID langid;
 727     LPWSTR buffer;
 728     static const WCHAR szProductLanguage[] =
 729         {'P','r','o','d','u','c','t','L','a','n','g','u','a','g','e',0};
 730
 731     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
 732     if (!package)
 733         return ERROR_INVALID_HANDLE;
 734
 735     buffer = msi_dup_property( package, szProductLanguage );
 736     langid = atoiW(buffer);
 737
 738     msi_free(buffer);
 739     msiobj_release (&package->hdr);
 740     return langid;
 741 }