dlls/msi/database.c

   1 /*
   2  * Implementation of the Microsoft Installer (msi.dll)
   3  *
   4  * Copyright 2002,2003,2004,2005 Mike McCormack 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23
  24 #define COBJMACROS
  25 #define NONAMELESSUNION
  26
  27 #include "windef.h"
  28 #include "winbase.h"
  29 #include "winreg.h"
  30 #include "winnls.h"
  31 #include "wine/debug.h"
  32 #include "wine/unicode.h"
  33 #include "msi.h"
  34 #include "msiquery.h"
  35 #include "msipriv.h"
  36 #include "objidl.h"
  37 #include "objbase.h"
  38 #include "msiserver.h"
  39 #include "query.h"
  40
  41 #include "initguid.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(msi);
  44
  45 /*
  46  *  .MSI  file format
  47  *
  48  *  An .msi file is a structured storage file.
  49  *  It contains a number of streams.
  50  *  A stream for each table in the database.
  51  *  Two streams for the string table in the database.
  52  *  Any binary data in a table is a reference to a stream.
  53  */
  54
  55 #define IS_INTMSIDBOPEN(x)      (((ULONG_PTR)(x) >> 16) == 0)
  56
  57 typedef struct tagMSITRANSFORM {
  58     struct list entry;
  59     IStorage *stg;
  60 } MSITRANSFORM;
  61
  62 typedef struct tagMSISTREAM {
  63     struct list entry;
  64     IStorage *stg;
  65     IStream *stm;
  66 } MSISTREAM;
  67
  68 static UINT find_open_stream( MSIDATABASE *db, IStorage *stg, LPCWSTR name, IStream **stm )
  69 {
  70     MSISTREAM *stream;
  71
  72     LIST_FOR_EACH_ENTRY( stream, &db->streams, MSISTREAM, entry )
  73     {
  74         HRESULT r;
  75         STATSTG stat;
  76
  77         if (stream->stg != stg) continue;
  78
  79         r = IStream_Stat( stream->stm, &stat, 0 );
  80         if( FAILED( r ) )
  81         {
  82             WARN("failed to stat stream r = %08x!\n", r);
  83             continue;
  84         }
  85
  86         if( !strcmpW( name, stat.pwcsName ) )
  87         {
  88             TRACE("found %s\n", debugstr_w(name));
  89             *stm = stream->stm;
  90             CoTaskMemFree( stat.pwcsName );
  91             return ERROR_SUCCESS;
  92         }
  93
  94         CoTaskMemFree( stat.pwcsName );
  95     }
  96
  97     return ERROR_FUNCTION_FAILED;
  98 }
  99
 100 UINT msi_clone_open_stream( MSIDATABASE *db, IStorage *stg, LPCWSTR name, IStream **stm )
 101 {
 102     IStream *stream;
 103
 104     if (find_open_stream( db, stg, name, &stream ) == ERROR_SUCCESS)
 105     {
 106         HRESULT r;
 107         LARGE_INTEGER pos;
 108
 109         r = IStream_Clone( stream, stm );
 110         if( FAILED( r ) )
 111         {
 112             WARN("failed to clone stream r = %08x!\n", r);
 113             return ERROR_FUNCTION_FAILED;
 114         }
 115
 116         pos.QuadPart = 0;
 117         r = IStream_Seek( *stm, pos, STREAM_SEEK_SET, NULL );
 118         if( FAILED( r ) )
 119         {
 120             IStream_Release( *stm );
 121             return ERROR_FUNCTION_FAILED;
 122         }
 123
 124         return ERROR_SUCCESS;
 125     }
 126
 127     return ERROR_FUNCTION_FAILED;
 128 }
 129
 130 UINT msi_get_raw_stream( MSIDATABASE *db, LPCWSTR stname, IStream **stm )
 131 {
 132     HRESULT r;
 133     IStorage *stg;
 134     WCHAR decoded[MAX_STREAM_NAME_LEN];
 135
 136     decode_streamname( stname, decoded );
 137     TRACE("%s -> %s\n", debugstr_w(stname), debugstr_w(decoded));
 138
 139     if (msi_clone_open_stream( db, db->storage, stname, stm ) == ERROR_SUCCESS)
 140         return ERROR_SUCCESS;
 141
 142     r = IStorage_OpenStream( db->storage, stname, NULL,
 143                              STGM_READ | STGM_SHARE_EXCLUSIVE, 0, stm );
 144     if( FAILED( r ) )
 145     {
 146         MSITRANSFORM *transform;
 147
 148         LIST_FOR_EACH_ENTRY( transform, &db->transforms, MSITRANSFORM, entry )
 149         {
 150             r = IStorage_OpenStream( transform->stg, stname, NULL,
 151                                      STGM_READ | STGM_SHARE_EXCLUSIVE, 0, stm );
 152             if (SUCCEEDED(r))
 153             {
 154                 stg = transform->stg;
 155                 break;
 156             }
 157         }
 158     }
 159     else stg = db->storage;
 160
 161     if( SUCCEEDED(r) )
 162     {
 163         MSISTREAM *stream;
 164
 165         if (!(stream = msi_alloc( sizeof(MSISTREAM) ))) return ERROR_NOT_ENOUGH_MEMORY;
 166         stream->stg = stg;
 167         IStream_AddRef( stg );
 168         stream->stm = *stm;
 169         IStream_AddRef( *stm );
 170         list_add_tail( &db->streams, &stream->entry );
 171     }
 172
 173     return SUCCEEDED(r) ? ERROR_SUCCESS : ERROR_FUNCTION_FAILED;
 174 }
 175
 176 static void free_transforms( MSIDATABASE *db )
 177 {
 178     while( !list_empty( &db->transforms ) )
 179     {
 180         MSITRANSFORM *t = LIST_ENTRY( list_head( &db->transforms ),
 181                                       MSITRANSFORM, entry );
 182         list_remove( &t->entry );
 183         IStorage_Release( t->stg );
 184         msi_free( t );
 185     }
 186 }
 187
 188 void msi_destroy_stream( MSIDATABASE *db, const WCHAR *stname )
 189 {
 190     MSISTREAM *stream, *stream2;
 191
 192     LIST_FOR_EACH_ENTRY_SAFE( stream, stream2, &db->streams, MSISTREAM, entry )
 193     {
 194         HRESULT r;
 195         STATSTG stat;
 196
 197         r = IStream_Stat( stream->stm, &stat, 0 );
 198         if (FAILED(r))
 199         {
 200             WARN("failed to stat stream r = %08x\n", r);
 201             continue;
 202         }
 203
 204         if (!strcmpW( stname, stat.pwcsName ))
 205         {
 206             TRACE("destroying %s\n", debugstr_w(stname));
 207
 208             list_remove( &stream->entry );
 209             IStream_Release( stream->stm );
 210             IStream_Release( stream->stg );
 211             IStorage_DestroyElement( stream->stg, stname );
 212             msi_free( stream );
 213             CoTaskMemFree( stat.pwcsName );
 214             break;
 215         }
 216         CoTaskMemFree( stat.pwcsName );
 217     }
 218 }
 219
 220 static void free_streams( MSIDATABASE *db )
 221 {
 222     while( !list_empty( &db->streams ) )
 223     {
 224         MSISTREAM *s = LIST_ENTRY(list_head( &db->streams ), MSISTREAM, entry);
 225         list_remove( &s->entry );
 226         IStream_Release( s->stm );
 227         IStream_Release( s->stg );
 228         msi_free( s );
 229     }
 230 }
 231
 232 void append_storage_to_db( MSIDATABASE *db, IStorage *stg )
 233 {
 234     MSITRANSFORM *t;
 235
 236     t = msi_alloc( sizeof *t );
 237     t->stg = stg;
 238     IStorage_AddRef( stg );
 239     list_add_head( &db->transforms, &t->entry );
 240
 241     /* the transform may add or replace streams */
 242     free_streams( db );
 243 }
 244
 245 static VOID MSI_CloseDatabase( MSIOBJECTHDR *arg )
 246 {
 247     MSIDATABASE *db = (MSIDATABASE *) arg;
 248
 249     msi_free(db->path);
 250     free_cached_tables( db );
 251     free_streams( db );
 252     free_transforms( db );
 253     if (db->strings) msi_destroy_stringtable( db->strings );
 254     IStorage_Release( db->storage );
 255     if (db->deletefile)
 256     {
 257         DeleteFileW( db->deletefile );
 258         msi_free( db->deletefile );
 259     }
 260     if (db->localfile)
 261     {
 262         DeleteFileW( db->localfile );
 263         msi_free( db->localfile );
 264     }
 265 }
 266
 267 static HRESULT db_initialize( IStorage *stg, const GUID *clsid )
 268 {
 269     static const WCHAR szTables[]  = { '_','T','a','b','l','e','s',0 };
 270     HRESULT hr;
 271
 272     hr = IStorage_SetClass( stg, clsid );
 273     if (FAILED( hr ))
 274     {
 275         WARN("failed to set class id 0x%08x\n", hr);
 276         return hr;
 277     }
 278
 279     /* create the _Tables stream */
 280     hr = write_stream_data( stg, szTables, NULL, 0, TRUE );
 281     if (FAILED( hr ))
 282     {
 283         WARN("failed to create _Tables stream 0x%08x\n", hr);
 284         return hr;
 285     }
 286
 287     hr = msi_init_string_table( stg );
 288     if (FAILED( hr ))
 289     {
 290         WARN("failed to initialize string table 0x%08x\n", hr);
 291         return hr;
 292     }
 293
 294     hr = IStorage_Commit( stg, 0 );
 295     if (FAILED( hr ))
 296     {
 297         WARN("failed to commit changes 0x%08x\n", hr);
 298         return hr;
 299     }
 300
 301     return S_OK;
 302 }
 303
 304 UINT MSI_OpenDatabaseW(LPCWSTR szDBPath, LPCWSTR szPersist, MSIDATABASE **pdb)
 305 {
 306     IStorage *stg = NULL;
 307     HRESULT r;
 308     MSIDATABASE *db = NULL;
 309     UINT ret = ERROR_FUNCTION_FAILED;
 310     LPCWSTR szMode, save_path;
 311     STATSTG stat;
 312     BOOL created = FALSE, patch = FALSE;
 313     WCHAR path[MAX_PATH];
 314
 315     TRACE("%s %s\n",debugstr_w(szDBPath),debugstr_w(szPersist) );
 316
 317     if( !pdb )
 318         return ERROR_INVALID_PARAMETER;
 319
 320     if (szPersist - MSIDBOPEN_PATCHFILE >= MSIDBOPEN_READONLY &&
 321         szPersist - MSIDBOPEN_PATCHFILE <= MSIDBOPEN_CREATEDIRECT)
 322     {
 323         TRACE("Database is a patch\n");
 324         szPersist -= MSIDBOPEN_PATCHFILE;
 325         patch = TRUE;
 326     }
 327
 328     save_path = szDBPath;
 329     szMode = szPersist;
 330     if( !IS_INTMSIDBOPEN(szPersist) )
 331     {
 332         if (!CopyFileW( szDBPath, szPersist, FALSE ))
 333             return ERROR_OPEN_FAILED;
 334
 335         szDBPath = szPersist;
 336         szPersist = MSIDBOPEN_TRANSACT;
 337         created = TRUE;
 338     }
 339
 340     if( szPersist == MSIDBOPEN_READONLY )
 341     {
 342         r = StgOpenStorage( szDBPath, NULL,
 343               STGM_DIRECT|STGM_READ|STGM_SHARE_DENY_WRITE, NULL, 0, &stg);
 344     }
 345     else if( szPersist == MSIDBOPEN_CREATE )
 346     {
 347         r = StgCreateDocfile( szDBPath,
 348               STGM_CREATE|STGM_TRANSACTED|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, 0, &stg );
 349
 350         if( SUCCEEDED(r) )
 351             r = db_initialize( stg, patch ? &CLSID_MsiPatch : &CLSID_MsiDatabase );
 352         created = TRUE;
 353     }
 354     else if( szPersist == MSIDBOPEN_CREATEDIRECT )
 355     {
 356         r = StgCreateDocfile( szDBPath,
 357               STGM_CREATE|STGM_DIRECT|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, 0, &stg );
 358
 359         if( SUCCEEDED(r) )
 360             r = db_initialize( stg, patch ? &CLSID_MsiPatch : &CLSID_MsiDatabase );
 361         created = TRUE;
 362     }
 363     else if( szPersist == MSIDBOPEN_TRANSACT )
 364     {
 365         r = StgOpenStorage( szDBPath, NULL,
 366               STGM_TRANSACTED|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, NULL, 0, &stg);
 367     }
 368     else if( szPersist == MSIDBOPEN_DIRECT )
 369     {
 370         r = StgOpenStorage( szDBPath, NULL,
 371               STGM_DIRECT|STGM_READWRITE|STGM_SHARE_EXCLUSIVE, NULL, 0, &stg);
 372     }
 373     else
 374     {
 375         ERR("unknown flag %p\n",szPersist);
 376         return ERROR_INVALID_PARAMETER;
 377     }
 378
 379     if( FAILED( r ) || !stg )
 380     {
 381         FIXME("open failed r = %08x for %s\n", r, debugstr_w(szDBPath));
 382         return ERROR_FUNCTION_FAILED;
 383     }
 384
 385     r = IStorage_Stat( stg, &stat, STATFLAG_NONAME );
 386     if( FAILED( r ) )
 387     {
 388         FIXME("Failed to stat storage\n");
 389         goto end;
 390     }
 391
 392     if ( !IsEqualGUID( &stat.clsid, &CLSID_MsiDatabase ) &&
 393          !IsEqualGUID( &stat.clsid, &CLSID_MsiPatch ) &&
 394          !IsEqualGUID( &stat.clsid, &CLSID_MsiTransform ) )
 395     {
 396         ERR("storage GUID is not a MSI database GUID %s\n",
 397              debugstr_guid(&stat.clsid) );
 398         goto end;
 399     }
 400
 401     if ( patch && !IsEqualGUID( &stat.clsid, &CLSID_MsiPatch ) )
 402     {
 403         ERR("storage GUID is not the MSI patch GUID %s\n",
 404              debugstr_guid(&stat.clsid) );
 405         ret = ERROR_OPEN_FAILED;
 406         goto end;
 407     }
 408
 409     db = alloc_msiobject( MSIHANDLETYPE_DATABASE, sizeof (MSIDATABASE),
 410                               MSI_CloseDatabase );
 411     if( !db )
 412     {
 413         FIXME("Failed to allocate a handle\n");
 414         goto end;
 415     }
 416
 417     if (!strchrW( save_path, '\\' ))
 418     {
 419         GetCurrentDirectoryW( MAX_PATH, path );
 420         lstrcatW( path, szBackSlash );
 421         lstrcatW( path, save_path );
 422     }
 423     else
 424         lstrcpyW( path, save_path );
 425
 426     db->path = strdupW( path );
 427     db->media_transform_offset = MSI_INITIAL_MEDIA_TRANSFORM_OFFSET;
 428     db->media_transform_disk_id = MSI_INITIAL_MEDIA_TRANSFORM_DISKID;
 429
 430     if( TRACE_ON( msi ) )
 431         enum_stream_names( stg );
 432
 433     db->storage = stg;
 434     db->mode = szMode;
 435     if (created)
 436         db->deletefile = strdupW( szDBPath );
 437     list_init( &db->tables );
 438     list_init( &db->transforms );
 439     list_init( &db->streams );
 440
 441     db->strings = msi_load_string_table( stg, &db->bytes_per_strref );
 442     if( !db->strings )
 443         goto end;
 444
 445     ret = ERROR_SUCCESS;
 446
 447     msiobj_addref( &db->hdr );
 448     IStorage_AddRef( stg );
 449     *pdb = db;
 450
 451 end:
 452     if( db )
 453         msiobj_release( &db->hdr );
 454     if( stg )
 455         IStorage_Release( stg );
 456
 457     return ret;
 458 }
 459
 460 UINT WINAPI MsiOpenDatabaseW(LPCWSTR szDBPath, LPCWSTR szPersist, MSIHANDLE *phDB)
 461 {
 462     MSIDATABASE *db;
 463     UINT ret;
 464
 465     TRACE("%s %s %p\n",debugstr_w(szDBPath),debugstr_w(szPersist), phDB);
 466
 467     ret = MSI_OpenDatabaseW( szDBPath, szPersist, &db );
 468     if( ret == ERROR_SUCCESS )
 469     {
 470         *phDB = alloc_msihandle( &db->hdr );
 471         if (! *phDB)
 472             ret = ERROR_NOT_ENOUGH_MEMORY;
 473         msiobj_release( &db->hdr );
 474     }
 475
 476     return ret;
 477 }
 478
 479 UINT WINAPI MsiOpenDatabaseA(LPCSTR szDBPath, LPCSTR szPersist, MSIHANDLE *phDB)
 480 {
 481     HRESULT r = ERROR_FUNCTION_FAILED;
 482     LPWSTR szwDBPath = NULL, szwPersist = NULL;
 483
 484     TRACE("%s %s %p\n", debugstr_a(szDBPath), debugstr_a(szPersist), phDB);
 485
 486     if( szDBPath )
 487     {
 488         szwDBPath = strdupAtoW( szDBPath );
 489         if( !szwDBPath )
 490             goto end;
 491     }
 492
 493     if( !IS_INTMSIDBOPEN(szPersist) )
 494     {
 495         szwPersist = strdupAtoW( szPersist );
 496         if( !szwPersist )
 497             goto end;
 498     }
 499     else
 500         szwPersist = (LPWSTR)(DWORD_PTR)szPersist;
 501
 502     r = MsiOpenDatabaseW( szwDBPath, szwPersist, phDB );
 503
 504 end:
 505     if( !IS_INTMSIDBOPEN(szPersist) )
 506         msi_free( szwPersist );
 507     msi_free( szwDBPath );
 508
 509     return r;
 510 }
 511
 512 static LPWSTR msi_read_text_archive(LPCWSTR path, DWORD *len)
 513 {
 514     HANDLE file;
 515     LPSTR data = NULL;
 516     LPWSTR wdata = NULL;
 517     DWORD read, size = 0;
 518
 519     file = CreateFileW( path, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL );
 520     if (file == INVALID_HANDLE_VALUE)
 521         return NULL;
 522
 523     size = GetFileSize( file, NULL );
 524     if (!(data = msi_alloc( size ))) goto done;
 525
 526     if (!ReadFile( file, data, size, &read, NULL ) || read != size) goto done;
 527
 528     while (!data[size - 1]) size--;
 529     *len = MultiByteToWideChar( CP_ACP, 0, data, size, NULL, 0 );
 530     if ((wdata = msi_alloc( (*len + 1) * sizeof(WCHAR) )))
 531     {
 532         MultiByteToWideChar( CP_ACP, 0, data, size, wdata, *len );
 533         wdata[*len] = 0;
 534     }
 535
 536 done:
 537     CloseHandle( file );
 538     msi_free( data );
 539     return wdata;
 540 }
 541
 542 static void msi_parse_line(LPWSTR *line, LPWSTR **entries, DWORD *num_entries, DWORD *len)
 543 {
 544     LPWSTR ptr = *line, save;
 545     DWORD i, count = 1, chars_left = *len;
 546
 547     *entries = NULL;
 548
 549     /* stay on this line */
 550     while (chars_left && *ptr != '\n')
 551     {
 552         /* entries are separated by tabs */
 553         if (*ptr == '\t')
 554             count++;
 555
 556         ptr++;
 557         chars_left--;
 558     }
 559
 560     *entries = msi_alloc(count * sizeof(LPWSTR));
 561     if (!*entries)
 562         return;
 563
 564     /* store pointers into the data */
 565     chars_left = *len;
 566     for (i = 0, ptr = *line; i < count; i++)
 567     {
 568         while (chars_left && *ptr == '\r')
 569         {
 570             ptr++;
 571             chars_left--;
 572         }
 573         save = ptr;
 574
 575         while (chars_left && *ptr != '\t' && *ptr != '\n' && *ptr != '\r')
 576         {
 577             if (!*ptr) *ptr = '\n'; /* convert embedded nulls to \n */
 578             ptr++;
 579             chars_left--;
 580         }
 581
 582         /* NULL-separate the data */
 583         if (*ptr == '\n' || *ptr == '\r')
 584         {
 585             while (chars_left && (*ptr == '\n' || *ptr == '\r'))
 586             {
 587                 *(ptr++) = 0;
 588                 chars_left--;
 589             }
 590         }
 591         else if (*ptr)
 592         {
 593             *(ptr++) = 0;
 594             chars_left--;
 595         }
 596         (*entries)[i] = save;
 597     }
 598
 599     /* move to the next line if there's more, else EOF */
 600     *line = ptr;
 601     *len = chars_left;
 602     if (num_entries)
 603         *num_entries = count;
 604 }
 605
 606 static LPWSTR msi_build_createsql_prelude(LPWSTR table)
 607 {
 608     LPWSTR prelude;
 609     DWORD size;
 610
 611     static const WCHAR create_fmt[] = {'C','R','E','A','T','E',' ','T','A','B','L','E',' ','`','%','s','`',' ','(',' ',0};
 612
 613     size = sizeof(create_fmt)/sizeof(create_fmt[0]) + lstrlenW(table) - 2;
 614     prelude = msi_alloc(size * sizeof(WCHAR));
 615     if (!prelude)
 616         return NULL;
 617
 618     sprintfW(prelude, create_fmt, table);
 619     return prelude;
 620 }
 621
 622 static LPWSTR msi_build_createsql_columns(LPWSTR *columns_data, LPWSTR *types, DWORD num_columns)
 623 {
 624     LPWSTR columns, p;
 625     LPCWSTR type;
 626     DWORD sql_size = 1, i, len;
 627     WCHAR expanded[128], *ptr;
 628     WCHAR size[10], comma[2], extra[30];
 629
 630     static const WCHAR column_fmt[] = {'`','%','s','`',' ','%','s','%','s','%','s','%','s',' ',0};
 631     static const WCHAR size_fmt[] = {'(','%','s',')',0};
 632     static const WCHAR type_char[] = {'C','H','A','R',0};
 633     static const WCHAR type_int[] = {'I','N','T',0};
 634     static const WCHAR type_long[] = {'L','O','N','G',0};
 635     static const WCHAR type_object[] = {'O','B','J','E','C','T',0};
 636     static const WCHAR type_notnull[] = {' ','N','O','T',' ','N','U','L','L',0};
 637     static const WCHAR localizable[] = {' ','L','O','C','A','L','I','Z','A','B','L','E',0};
 638
 639     columns = msi_alloc_zero(sql_size * sizeof(WCHAR));
 640     if (!columns)
 641         return NULL;
 642
 643     for (i = 0; i < num_columns; i++)
 644     {
 645         type = NULL;
 646         comma[1] = size[0] = extra[0] = '\0';
 647
 648         if (i == num_columns - 1)
 649             comma[0] = '\0';
 650         else
 651             comma[0] = ',';
 652
 653         ptr = &types[i][1];
 654         len = atolW(ptr);
 655         extra[0] = '\0';
 656
 657         switch (types[i][0])
 658         {
 659             case 'l':
 660                 lstrcpyW(extra, type_notnull);
 661             case 'L':
 662                 lstrcatW(extra, localizable);
 663                 type = type_char;
 664                 sprintfW(size, size_fmt, ptr);
 665                 break;
 666             case 's':
 667                 lstrcpyW(extra, type_notnull);
 668             case 'S':
 669                 type = type_char;
 670                 sprintfW(size, size_fmt, ptr);
 671                 break;
 672             case 'i':
 673                 lstrcpyW(extra, type_notnull);
 674             case 'I':
 675                 if (len <= 2)
 676                     type = type_int;
 677                 else if (len == 4)
 678                     type = type_long;
 679                 else
 680                 {
 681                     WARN("invalid int width %u\n", len);
 682                     msi_free(columns);
 683                     return NULL;
 684                 }
 685                 break;
 686             case 'v':
 687                 lstrcpyW(extra, type_notnull);
 688             case 'V':
 689                 type = type_object;
 690                 break;
 691             default:
 692                 ERR("Unknown type: %c\n", types[i][0]);
 693                 msi_free(columns);
 694                 return NULL;
 695         }
 696
 697         sprintfW(expanded, column_fmt, columns_data[i], type, size, extra, comma);
 698         sql_size += lstrlenW(expanded);
 699
 700         p = msi_realloc(columns, sql_size * sizeof(WCHAR));
 701         if (!p)
 702         {
 703             msi_free(columns);
 704             return NULL;
 705         }
 706         columns = p;
 707
 708         lstrcatW(columns, expanded);
 709     }
 710
 711     return columns;
 712 }
 713
 714 static LPWSTR msi_build_createsql_postlude(LPWSTR *primary_keys, DWORD num_keys)
 715 {
 716     LPWSTR postlude, keys, ptr;
 717     DWORD size, key_size, i;
 718
 719     static const WCHAR key_fmt[] = {'`','%','s','`',',',' ',0};
 720     static const WCHAR postlude_fmt[] = {'P','R','I','M','A','R','Y',' ','K','E','Y',' ','%','s',')',0};
 721
 722     for (i = 0, size = 1; i < num_keys; i++)
 723         size += lstrlenW(key_fmt) + lstrlenW(primary_keys[i]) - 2;
 724
 725     keys = msi_alloc(size * sizeof(WCHAR));
 726     if (!keys)
 727         return NULL;
 728
 729     for (i = 0, ptr = keys; i < num_keys; i++)
 730     {
 731         key_size = lstrlenW(key_fmt) + lstrlenW(primary_keys[i]) -2;
 732         sprintfW(ptr, key_fmt, primary_keys[i]);
 733         ptr += key_size;
 734     }
 735
 736     /* remove final ', ' */
 737     *(ptr - 2) = '\0';
 738
 739     size = lstrlenW(postlude_fmt) + size - 1;
 740     postlude = msi_alloc(size * sizeof(WCHAR));
 741     if (!postlude)
 742         goto done;
 743
 744     sprintfW(postlude, postlude_fmt, keys);
 745
 746 done:
 747     msi_free(keys);
 748     return postlude;
 749 }
 750
 751 static UINT msi_add_table_to_db(MSIDATABASE *db, LPWSTR *columns, LPWSTR *types, LPWSTR *labels, DWORD num_labels, DWORD num_columns)
 752 {
 753     UINT r = ERROR_OUTOFMEMORY;
 754     DWORD size;
 755     MSIQUERY *view;
 756     LPWSTR create_sql = NULL;
 757     LPWSTR prelude, columns_sql, postlude;
 758
 759     prelude = msi_build_createsql_prelude(labels[0]);
 760     columns_sql = msi_build_createsql_columns(columns, types, num_columns);
 761     postlude = msi_build_createsql_postlude(labels + 1, num_labels - 1); /* skip over table name */
 762
 763     if (!prelude || !columns_sql || !postlude)
 764         goto done;
 765
 766     size = lstrlenW(prelude) + lstrlenW(columns_sql) + lstrlenW(postlude) + 1;
 767     create_sql = msi_alloc(size * sizeof(WCHAR));
 768     if (!create_sql)
 769         goto done;
 770
 771     lstrcpyW(create_sql, prelude);
 772     lstrcatW(create_sql, columns_sql);
 773     lstrcatW(create_sql, postlude);
 774
 775     r = MSI_DatabaseOpenViewW( db, create_sql, &view );
 776     if (r != ERROR_SUCCESS)
 777         goto done;
 778
 779     r = MSI_ViewExecute(view, NULL);
 780     MSI_ViewClose(view);
 781     msiobj_release(&view->hdr);
 782
 783 done:
 784     msi_free(prelude);
 785     msi_free(columns_sql);
 786     msi_free(postlude);
 787     msi_free(create_sql);
 788     return r;
 789 }
 790
 791 static LPWSTR msi_import_stream_filename(LPCWSTR path, LPCWSTR name)
 792 {
 793     DWORD len;
 794     LPWSTR fullname, ptr;
 795
 796     len = lstrlenW(path) + lstrlenW(name) + 1;
 797     fullname = msi_alloc(len*sizeof(WCHAR));
 798     if (!fullname)
 799        return NULL;
 800
 801     lstrcpyW( fullname, path );
 802
 803     /* chop off extension from path */
 804     ptr = strrchrW(fullname, '.');
 805     if (!ptr)
 806     {
 807         msi_free (fullname);
 808         return NULL;
 809     }
 810     *ptr++ = '\\';
 811     lstrcpyW( ptr, name );
 812     return fullname;
 813 }
 814
 815 static UINT construct_record(DWORD num_columns, LPWSTR *types,
 816                              LPWSTR *data, LPWSTR path, MSIRECORD **rec)
 817 {
 818     UINT i;
 819
 820     *rec = MSI_CreateRecord(num_columns);
 821     if (!*rec)
 822         return ERROR_OUTOFMEMORY;
 823
 824     for (i = 0; i < num_columns; i++)
 825     {
 826         switch (types[i][0])
 827         {
 828             case 'L': case 'l': case 'S': case 's':
 829                 MSI_RecordSetStringW(*rec, i + 1, data[i]);
 830                 break;
 831             case 'I': case 'i':
 832                 if (*data[i])
 833                     MSI_RecordSetInteger(*rec, i + 1, atoiW(data[i]));
 834                 break;
 835             case 'V': case 'v':
 836                 if (*data[i])
 837                 {
 838                     UINT r;
 839                     LPWSTR file = msi_import_stream_filename(path, data[i]);
 840                     if (!file)
 841                         return ERROR_FUNCTION_FAILED;
 842
 843                     r = MSI_RecordSetStreamFromFileW(*rec, i + 1, file);
 844                     msi_free (file);
 845                     if (r != ERROR_SUCCESS)
 846                         return ERROR_FUNCTION_FAILED;
 847                 }
 848                 break;
 849             default:
 850                 ERR("Unhandled column type: %c\n", types[i][0]);
 851                 msiobj_release(&(*rec)->hdr);
 852                 return ERROR_FUNCTION_FAILED;
 853         }
 854     }
 855
 856     return ERROR_SUCCESS;
 857 }
 858
 859 static UINT msi_add_records_to_table(MSIDATABASE *db, LPWSTR *columns, LPWSTR *types,
 860                                      LPWSTR *labels, LPWSTR **records,
 861                                      int num_columns, int num_records,
 862                                      LPWSTR path)
 863 {
 864     UINT r;
 865     int i;
 866     MSIQUERY *view;
 867     MSIRECORD *rec;
 868
 869     static const WCHAR select[] = {
 870         'S','E','L','E','C','T',' ','*',' ',
 871         'F','R','O','M',' ','`','%','s','`',0
 872     };
 873
 874     r = MSI_OpenQuery(db, &view, select, labels[0]);
 875     if (r != ERROR_SUCCESS)
 876         return r;
 877
 878     while (MSI_ViewFetch(view, &rec) != ERROR_NO_MORE_ITEMS)
 879     {
 880         r = MSI_ViewModify(view, MSIMODIFY_DELETE, rec);
 881         msiobj_release(&rec->hdr);
 882         if (r != ERROR_SUCCESS)
 883             goto done;
 884     }
 885
 886     for (i = 0; i < num_records; i++)
 887     {
 888         r = construct_record(num_columns, types, records[i], path, &rec);
 889         if (r != ERROR_SUCCESS)
 890             goto done;
 891
 892         r = MSI_ViewModify(view, MSIMODIFY_INSERT, rec);
 893         if (r != ERROR_SUCCESS)
 894         {
 895             msiobj_release(&rec->hdr);
 896             goto done;
 897         }
 898
 899         msiobj_release(&rec->hdr);
 900     }
 901
 902 done:
 903     msiobj_release(&view->hdr);
 904     return r;
 905 }
 906
 907 static UINT MSI_DatabaseImport(MSIDATABASE *db, LPCWSTR folder, LPCWSTR file)
 908 {
 909     UINT r;
 910     DWORD len, i;
 911     DWORD num_labels, num_types;
 912     DWORD num_columns, num_records = 0;
 913     LPWSTR *columns, *types, *labels;
 914     LPWSTR path, ptr, data;
 915     LPWSTR **records = NULL;
 916     LPWSTR **temp_records;
 917
 918     static const WCHAR suminfo[] =
 919         {'_','S','u','m','m','a','r','y','I','n','f','o','r','m','a','t','i','o','n',0};
 920     static const WCHAR forcecodepage[] =
 921         {'_','F','o','r','c','e','C','o','d','e','p','a','g','e',0};
 922
 923     TRACE("%p %s %s\n", db, debugstr_w(folder), debugstr_w(file) );
 924
 925     if( folder == NULL || file == NULL )
 926         return ERROR_INVALID_PARAMETER;
 927
 928     len = lstrlenW(folder) + lstrlenW(szBackSlash) + lstrlenW(file) + 1;
 929     path = msi_alloc( len * sizeof(WCHAR) );
 930     if (!path)
 931         return ERROR_OUTOFMEMORY;
 932
 933     lstrcpyW( path, folder );
 934     lstrcatW( path, szBackSlash );
 935     lstrcatW( path, file );
 936
 937     data = msi_read_text_archive( path, &len );
 938
 939     ptr = data;
 940     msi_parse_line( &ptr, &columns, &num_columns, &len );
 941     msi_parse_line( &ptr, &types, &num_types, &len );
 942     msi_parse_line( &ptr, &labels, &num_labels, &len );
 943
 944     if (num_columns == 1 && !columns[0][0] && num_labels == 1 && !labels[0][0] &&
 945         num_types == 2 && !strcmpW( types[1], forcecodepage ))
 946     {
 947         r = msi_set_string_table_codepage( db->strings, atoiW( types[0] ) );
 948         goto done;
 949     }
 950
 951     if (num_columns != num_types)
 952     {
 953         r = ERROR_FUNCTION_FAILED;
 954         goto done;
 955     }
 956
 957     records = msi_alloc(sizeof(LPWSTR *));
 958     if (!records)
 959     {
 960         r = ERROR_OUTOFMEMORY;
 961         goto done;
 962     }
 963
 964     /* read in the table records */
 965     while (len)
 966     {
 967         msi_parse_line( &ptr, &records[num_records], NULL, &len );
 968
 969         num_records++;
 970         temp_records = msi_realloc(records, (num_records + 1) * sizeof(LPWSTR *));
 971         if (!temp_records)
 972         {
 973             r = ERROR_OUTOFMEMORY;
 974             goto done;
 975         }
 976         records = temp_records;
 977     }
 978
 979     if (!strcmpW(labels[0], suminfo))
 980     {
 981         r = msi_add_suminfo( db, records, num_records, num_columns );
 982         if (r != ERROR_SUCCESS)
 983         {
 984             r = ERROR_FUNCTION_FAILED;
 985             goto done;
 986         }
 987     }
 988     else
 989     {
 990         if (!TABLE_Exists(db, labels[0]))
 991         {
 992             r = msi_add_table_to_db( db, columns, types, labels, num_labels, num_columns );
 993             if (r != ERROR_SUCCESS)
 994             {
 995                 r = ERROR_FUNCTION_FAILED;
 996                 goto done;
 997             }
 998         }
 999
1000         r = msi_add_records_to_table( db, columns, types, labels, records, num_columns, num_records, path );
1001     }
1002
1003 done:
1004     msi_free(path);
1005     msi_free(data);
1006     msi_free(columns);
1007     msi_free(types);
1008     msi_free(labels);
1009
1010     for (i = 0; i < num_records; i++)
1011         msi_free(records[i]);
1012
1013     msi_free(records);
1014
1015     return r;
1016 }
1017
1018 UINT WINAPI MsiDatabaseImportW(MSIHANDLE handle, LPCWSTR szFolder, LPCWSTR szFilename)
1019 {
1020     MSIDATABASE *db;
1021     UINT r;
1022
1023     TRACE("%x %s %s\n",handle,debugstr_w(szFolder), debugstr_w(szFilename));
1024
1025     db = msihandle2msiinfo( handle, MSIHANDLETYPE_DATABASE );
1026     if( !db )
1027     {
1028         IWineMsiRemoteDatabase *remote_database;
1029
1030         remote_database = (IWineMsiRemoteDatabase *)msi_get_remote( handle );
1031         if ( !remote_database )
1032             return ERROR_INVALID_HANDLE;
1033
1034         IWineMsiRemoteDatabase_Release( remote_database );
1035         WARN("MsiDatabaseImport not allowed during a custom action!\n");
1036
1037         return ERROR_SUCCESS;
1038     }
1039
1040     r = MSI_DatabaseImport( db, szFolder, szFilename );
1041     msiobj_release( &db->hdr );
1042     return r;
1043 }
1044
1045 UINT WINAPI MsiDatabaseImportA( MSIHANDLE handle,
1046                LPCSTR szFolder, LPCSTR szFilename )
1047 {
1048     LPWSTR path = NULL, file = NULL;
1049     UINT r = ERROR_OUTOFMEMORY;
1050
1051     TRACE("%x %s %s\n", handle, debugstr_a(szFolder), debugstr_a(szFilename));
1052
1053     if( szFolder )
1054     {
1055         path = strdupAtoW( szFolder );
1056         if( !path )
1057             goto end;
1058     }
1059
1060     if( szFilename )
1061     {
1062         file = strdupAtoW( szFilename );
1063         if( !file )
1064             goto end;
1065     }
1066
1067     r = MsiDatabaseImportW( handle, path, file );
1068
1069 end:
1070     msi_free( path );
1071     msi_free( file );
1072
1073     return r;
1074 }
1075
1076 static UINT msi_export_record( HANDLE handle, MSIRECORD *row, UINT start )
1077 {
1078     UINT i, count, len, r = ERROR_SUCCESS;
1079     const char *sep;
1080     char *buffer;
1081     DWORD sz;
1082
1083     len = 0x100;
1084     buffer = msi_alloc( len );
1085     if ( !buffer )
1086         return ERROR_OUTOFMEMORY;
1087
1088     count = MSI_RecordGetFieldCount( row );
1089     for ( i=start; i<=count; i++ )
1090     {
1091         sz = len;
1092         r = MSI_RecordGetStringA( row, i, buffer, &sz );
1093         if (r == ERROR_MORE_DATA)
1094         {
1095             char *p = msi_realloc( buffer, sz + 1 );
1096             if (!p)
1097                 break;
1098             len = sz + 1;
1099             buffer = p;
1100         }
1101         sz = len;
1102         r = MSI_RecordGetStringA( row, i, buffer, &sz );
1103         if (r != ERROR_SUCCESS)
1104             break;
1105
1106         if (!WriteFile( handle, buffer, sz, &sz, NULL ))
1107         {
1108             r = ERROR_FUNCTION_FAILED;
1109             break;
1110         }
1111
1112         sep = (i < count) ? "\t" : "\r\n";
1113         if (!WriteFile( handle, sep, strlen(sep), &sz, NULL ))
1114         {
1115             r = ERROR_FUNCTION_FAILED;
1116             break;
1117         }
1118     }
1119     msi_free( buffer );
1120     return r;
1121 }
1122
1123 static UINT msi_export_row( MSIRECORD *row, void *arg )
1124 {
1125     return msi_export_record( arg, row, 1 );
1126 }
1127
1128 static UINT msi_export_forcecodepage( HANDLE handle, UINT codepage )
1129 {
1130     static const char fmt[] = "\r\n\r\n%u\t_ForceCodepage\r\n";
1131     char data[sizeof(fmt) + 10];
1132     DWORD sz;
1133
1134     sprintf( data, fmt, codepage );
1135
1136     sz = lstrlenA(data) + 1;
1137     if (!WriteFile(handle, data, sz, &sz, NULL))
1138         return ERROR_FUNCTION_FAILED;
1139
1140     return ERROR_SUCCESS;
1141 }
1142
1143 static UINT MSI_DatabaseExport( MSIDATABASE *db, LPCWSTR table,
1144                LPCWSTR folder, LPCWSTR file )
1145 {
1146     static const WCHAR query[] = {
1147         's','e','l','e','c','t',' ','*',' ','f','r','o','m',' ','%','s',0 };
1148     static const WCHAR forcecodepage[] = {
1149         '_','F','o','r','c','e','C','o','d','e','p','a','g','e',0 };
1150     MSIRECORD *rec = NULL;
1151     MSIQUERY *view = NULL;
1152     LPWSTR filename;
1153     HANDLE handle;
1154     UINT len, r;
1155
1156     TRACE("%p %s %s %s\n", db, debugstr_w(table),
1157           debugstr_w(folder), debugstr_w(file) );
1158
1159     if( folder == NULL || file == NULL )
1160         return ERROR_INVALID_PARAMETER;
1161
1162     len = lstrlenW(folder) + lstrlenW(file) + 2;
1163     filename = msi_alloc(len * sizeof (WCHAR));
1164     if (!filename)
1165         return ERROR_OUTOFMEMORY;
1166
1167     lstrcpyW( filename, folder );
1168     lstrcatW( filename, szBackSlash );
1169     lstrcatW( filename, file );
1170
1171     handle = CreateFileW( filename, GENERIC_READ | GENERIC_WRITE, 0,
1172                           NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL );
1173     msi_free( filename );
1174     if (handle == INVALID_HANDLE_VALUE)
1175         return ERROR_FUNCTION_FAILED;
1176
1177     if (!strcmpW( table, forcecodepage ))
1178     {
1179         UINT codepage = msi_get_string_table_codepage( db->strings );
1180         r = msi_export_forcecodepage( handle, codepage );
1181         goto done;
1182     }
1183
1184     r = MSI_OpenQuery( db, &view, query, table );
1185     if (r == ERROR_SUCCESS)
1186     {
1187         /* write out row 1, the column names */
1188         r = MSI_ViewGetColumnInfo(view, MSICOLINFO_NAMES, &rec);
1189         if (r == ERROR_SUCCESS)
1190         {
1191             msi_export_record( handle, rec, 1 );
1192             msiobj_release( &rec->hdr );
1193         }
1194
1195         /* write out row 2, the column types */
1196         r = MSI_ViewGetColumnInfo(view, MSICOLINFO_TYPES, &rec);
1197         if (r == ERROR_SUCCESS)
1198         {
1199             msi_export_record( handle, rec, 1 );
1200             msiobj_release( &rec->hdr );
1201         }
1202
1203         /* write out row 3, the table name + keys */
1204         r = MSI_DatabaseGetPrimaryKeys( db, table, &rec );
1205         if (r == ERROR_SUCCESS)
1206         {
1207             MSI_RecordSetStringW( rec, 0, table );
1208             msi_export_record( handle, rec, 0 );
1209             msiobj_release( &rec->hdr );
1210         }
1211
1212         /* write out row 4 onwards, the data */
1213         r = MSI_IterateRecords( view, 0, msi_export_row, handle );
1214         msiobj_release( &view->hdr );
1215     }
1216
1217 done:
1218     CloseHandle( handle );
1219     return r;
1220 }
1221
1222 /***********************************************************************
1223  * MsiExportDatabaseW        [MSI.@]
1224  *
1225  * Writes a file containing the table data as tab separated ASCII.
1226  *
1227  * The format is as follows:
1228  *
1229  * row1 : colname1 <tab> colname2 <tab> .... colnameN <cr> <lf>
1230  * row2 : coltype1 <tab> coltype2 <tab> .... coltypeN <cr> <lf>
1231  * row3 : tablename <tab> key1 <tab> key2 <tab> ... keyM <cr> <lf>
1232  *
1233  * Followed by the data, starting at row 1 with one row per line
1234  *
1235  * row4 : data <tab> data <tab> data <tab> ... data <cr> <lf>
1236  */
1237 UINT WINAPI MsiDatabaseExportW( MSIHANDLE handle, LPCWSTR szTable,
1238                LPCWSTR szFolder, LPCWSTR szFilename )
1239 {
1240     MSIDATABASE *db;
1241     UINT r;
1242
1243     TRACE("%x %s %s %s\n", handle, debugstr_w(szTable),
1244           debugstr_w(szFolder), debugstr_w(szFilename));
1245
1246     db = msihandle2msiinfo( handle, MSIHANDLETYPE_DATABASE );
1247     if( !db )
1248     {
1249         IWineMsiRemoteDatabase *remote_database;
1250
1251         remote_database = (IWineMsiRemoteDatabase *)msi_get_remote( handle );
1252         if ( !remote_database )
1253             return ERROR_INVALID_HANDLE;
1254
1255         IWineMsiRemoteDatabase_Release( remote_database );
1256         WARN("MsiDatabaseExport not allowed during a custom action!\n");
1257
1258         return ERROR_SUCCESS;
1259     }
1260
1261     r = MSI_DatabaseExport( db, szTable, szFolder, szFilename );
1262     msiobj_release( &db->hdr );
1263     return r;
1264 }
1265
1266 UINT WINAPI MsiDatabaseExportA( MSIHANDLE handle, LPCSTR szTable,
1267                LPCSTR szFolder, LPCSTR szFilename )
1268 {
1269     LPWSTR path = NULL, file = NULL, table = NULL;
1270     UINT r = ERROR_OUTOFMEMORY;
1271
1272     TRACE("%x %s %s %s\n", handle, debugstr_a(szTable),
1273           debugstr_a(szFolder), debugstr_a(szFilename));
1274
1275     if( szTable )
1276     {
1277         table = strdupAtoW( szTable );
1278         if( !table )
1279             goto end;
1280     }
1281
1282     if( szFolder )
1283     {
1284         path = strdupAtoW( szFolder );
1285         if( !path )
1286             goto end;
1287     }
1288
1289     if( szFilename )
1290     {
1291         file = strdupAtoW( szFilename );
1292         if( !file )
1293             goto end;
1294     }
1295
1296     r = MsiDatabaseExportW( handle, table, path, file );
1297
1298 end:
1299     msi_free( table );
1300     msi_free( path );
1301     msi_free( file );
1302
1303     return r;
1304 }
1305
1306 UINT WINAPI MsiDatabaseMergeA(MSIHANDLE hDatabase, MSIHANDLE hDatabaseMerge,
1307                               LPCSTR szTableName)
1308 {
1309     UINT r;
1310     LPWSTR table;
1311
1312     TRACE("(%d, %d, %s)\n", hDatabase, hDatabaseMerge,
1313           debugstr_a(szTableName));
1314
1315     table = strdupAtoW(szTableName);
1316     r = MsiDatabaseMergeW(hDatabase, hDatabaseMerge, table);
1317
1318     msi_free(table);
1319     return r;
1320 }
1321
1322 typedef struct _tagMERGETABLE
1323 {
1324     struct list entry;
1325     struct list rows;
1326     LPWSTR name;
1327     DWORD numconflicts;
1328     LPWSTR *columns;
1329     DWORD numcolumns;
1330     LPWSTR *types;
1331     DWORD numtypes;
1332     LPWSTR *labels;
1333     DWORD numlabels;
1334 } MERGETABLE;
1335
1336 typedef struct _tagMERGEROW
1337 {
1338     struct list entry;
1339     MSIRECORD *data;
1340 } MERGEROW;
1341
1342 typedef struct _tagMERGEDATA
1343 {
1344     MSIDATABASE *db;
1345     MSIDATABASE *merge;
1346     MERGETABLE *curtable;
1347     MSIQUERY *curview;
1348     struct list *tabledata;
1349 } MERGEDATA;
1350
1351 static BOOL merge_type_match(LPCWSTR type1, LPCWSTR type2)
1352 {
1353     if (((type1[0] == 'l') || (type1[0] == 's')) &&
1354         ((type2[0] == 'l') || (type2[0] == 's')))
1355         return TRUE;
1356
1357     if (((type1[0] == 'L') || (type1[0] == 'S')) &&
1358         ((type2[0] == 'L') || (type2[0] == 'S')))
1359         return TRUE;
1360
1361     return !strcmpW( type1, type2 );
1362 }
1363
1364 static UINT merge_verify_colnames(MSIQUERY *dbview, MSIQUERY *mergeview)
1365 {
1366     MSIRECORD *dbrec, *mergerec;
1367     UINT r, i, count;
1368
1369     r = MSI_ViewGetColumnInfo(dbview, MSICOLINFO_NAMES, &dbrec);
1370     if (r != ERROR_SUCCESS)
1371         return r;
1372
1373     r = MSI_ViewGetColumnInfo(mergeview, MSICOLINFO_NAMES, &mergerec);
1374     if (r != ERROR_SUCCESS)
1375         return r;
1376
1377     count = MSI_RecordGetFieldCount(dbrec);
1378     for (i = 1; i <= count; i++)
1379     {
1380         if (!MSI_RecordGetString(mergerec, i))
1381             break;
1382
1383         if (strcmpW( MSI_RecordGetString( dbrec, i ), MSI_RecordGetString( mergerec, i ) ))
1384         {
1385             r = ERROR_DATATYPE_MISMATCH;
1386             goto done;
1387         }
1388     }
1389
1390     msiobj_release(&dbrec->hdr);
1391     msiobj_release(&mergerec->hdr);
1392     dbrec = mergerec = NULL;
1393
1394     r = MSI_ViewGetColumnInfo(dbview, MSICOLINFO_TYPES, &dbrec);
1395     if (r != ERROR_SUCCESS)
1396         return r;
1397
1398     r = MSI_ViewGetColumnInfo(mergeview, MSICOLINFO_TYPES, &mergerec);
1399     if (r != ERROR_SUCCESS)
1400         return r;
1401
1402     count = MSI_RecordGetFieldCount(dbrec);
1403     for (i = 1; i <= count; i++)
1404     {
1405         if (!MSI_RecordGetString(mergerec, i))
1406             break;
1407
1408         if (!merge_type_match(MSI_RecordGetString(dbrec, i),
1409                      MSI_RecordGetString(mergerec, i)))
1410         {
1411             r = ERROR_DATATYPE_MISMATCH;
1412             break;
1413         }
1414     }
1415
1416 done:
1417     msiobj_release(&dbrec->hdr);
1418     msiobj_release(&mergerec->hdr);
1419
1420     return r;
1421 }
1422
1423 static UINT merge_verify_primary_keys(MSIDATABASE *db, MSIDATABASE *mergedb,
1424                                       LPCWSTR table)
1425 {
1426     MSIRECORD *dbrec, *mergerec = NULL;
1427     UINT r, i, count;
1428
1429     r = MSI_DatabaseGetPrimaryKeys(db, table, &dbrec);
1430     if (r != ERROR_SUCCESS)
1431         return r;
1432
1433     r = MSI_DatabaseGetPrimaryKeys(mergedb, table, &mergerec);
1434     if (r != ERROR_SUCCESS)
1435         goto done;
1436
1437     count = MSI_RecordGetFieldCount(dbrec);
1438     if (count != MSI_RecordGetFieldCount(mergerec))
1439     {
1440         r = ERROR_DATATYPE_MISMATCH;
1441         goto done;
1442     }
1443
1444     for (i = 1; i <= count; i++)
1445     {
1446         if (strcmpW( MSI_RecordGetString( dbrec, i ), MSI_RecordGetString( mergerec, i ) ))
1447         {
1448             r = ERROR_DATATYPE_MISMATCH;
1449             goto done;
1450         }
1451     }
1452
1453 done:
1454     msiobj_release(&dbrec->hdr);
1455     msiobj_release(&mergerec->hdr);
1456
1457     return r;
1458 }
1459
1460 static LPWSTR get_key_value(MSIQUERY *view, LPCWSTR key, MSIRECORD *rec)
1461 {
1462     MSIRECORD *colnames;
1463     LPWSTR str, val;
1464     UINT r, i = 0, sz = 0;
1465     int cmp;
1466
1467     r = MSI_ViewGetColumnInfo(view, MSICOLINFO_NAMES, &colnames);
1468     if (r != ERROR_SUCCESS)
1469         return NULL;
1470
1471     do
1472     {
1473         str = msi_dup_record_field(colnames, ++i);
1474         cmp = strcmpW( key, str );
1475         msi_free(str);
1476     } while (cmp);
1477
1478     msiobj_release(&colnames->hdr);
1479
1480     r = MSI_RecordGetStringW(rec, i, NULL, &sz);
1481     if (r != ERROR_SUCCESS)
1482         return NULL;
1483     sz++;
1484
1485     if (MSI_RecordGetString(rec, i))  /* check record field is a string */
1486     {
1487         /* quote string record fields */
1488         const WCHAR szQuote[] = {'\'', 0};
1489         sz += 2;
1490         val = msi_alloc(sz*sizeof(WCHAR));
1491         if (!val)
1492             return NULL;
1493
1494         lstrcpyW(val, szQuote);
1495         r = MSI_RecordGetStringW(rec, i, val+1, &sz);
1496         lstrcpyW(val+1+sz, szQuote);
1497     }
1498     else
1499     {
1500         /* do not quote integer record fields */
1501         val = msi_alloc(sz*sizeof(WCHAR));
1502         if (!val)
1503             return NULL;
1504
1505         r = MSI_RecordGetStringW(rec, i, val, &sz);
1506     }
1507
1508     if (r != ERROR_SUCCESS)
1509     {
1510         ERR("failed to get string!\n");
1511         msi_free(val);
1512         return NULL;
1513     }
1514
1515     return val;
1516 }
1517
1518 static LPWSTR create_diff_row_query(MSIDATABASE *merge, MSIQUERY *view,
1519                                     LPWSTR table, MSIRECORD *rec)
1520 {
1521     LPWSTR query = NULL, clause = NULL;
1522     LPWSTR ptr = NULL, val;
1523     LPCWSTR setptr;
1524     DWORD size = 1, oldsize;
1525     LPCWSTR key;
1526     MSIRECORD *keys;
1527     UINT r, i, count;
1528
1529     static const WCHAR keyset[] = {
1530         '`','%','s','`',' ','=',' ','%','s',' ','A','N','D',' ',0};
1531     static const WCHAR lastkeyset[] = {
1532         '`','%','s','`',' ','=',' ','%','s',' ',0};
1533     static const WCHAR fmt[] = {'S','E','L','E','C','T',' ','*',' ',
1534         'F','R','O','M',' ','`','%','s','`',' ',
1535         'W','H','E','R','E',' ','%','s',0};
1536
1537     r = MSI_DatabaseGetPrimaryKeys(merge, table, &keys);
1538     if (r != ERROR_SUCCESS)
1539         return NULL;
1540
1541     clause = msi_alloc_zero(size * sizeof(WCHAR));
1542     if (!clause)
1543         goto done;
1544
1545     ptr = clause;
1546     count = MSI_RecordGetFieldCount(keys);
1547     for (i = 1; i <= count; i++)
1548     {
1549         key = MSI_RecordGetString(keys, i);
1550         val = get_key_value(view, key, rec);
1551
1552         if (i == count)
1553             setptr = lastkeyset;
1554         else
1555             setptr = keyset;
1556
1557         oldsize = size;
1558         size += lstrlenW(setptr) + lstrlenW(key) + lstrlenW(val) - 4;
1559         clause = msi_realloc(clause, size * sizeof (WCHAR));
1560         if (!clause)
1561         {
1562             msi_free(val);
1563             goto done;
1564         }
1565
1566         ptr = clause + oldsize - 1;
1567         sprintfW(ptr, setptr, key, val);
1568         msi_free(val);
1569     }
1570
1571     size = lstrlenW(fmt) + lstrlenW(table) + lstrlenW(clause) + 1;
1572     query = msi_alloc(size * sizeof(WCHAR));
1573     if (!query)
1574         goto done;
1575
1576     sprintfW(query, fmt, table, clause);
1577
1578 done:
1579     msi_free(clause);
1580     msiobj_release(&keys->hdr);
1581     return query;
1582 }
1583
1584 static UINT merge_diff_row(MSIRECORD *rec, LPVOID param)
1585 {
1586     MERGEDATA *data = param;
1587     MERGETABLE *table = data->curtable;
1588     MERGEROW *mergerow;
1589     MSIQUERY *dbview = NULL;
1590     MSIRECORD *row = NULL;
1591     LPWSTR query = NULL;
1592     UINT r = ERROR_SUCCESS;
1593
1594     if (TABLE_Exists(data->db, table->name))
1595     {
1596         query = create_diff_row_query(data->merge, data->curview, table->name, rec);
1597         if (!query)
1598             return ERROR_OUTOFMEMORY;
1599
1600         r = MSI_DatabaseOpenViewW(data->db, query, &dbview);
1601         if (r != ERROR_SUCCESS)
1602             goto done;
1603
1604         r = MSI_ViewExecute(dbview, NULL);
1605         if (r != ERROR_SUCCESS)
1606             goto done;
1607
1608         r = MSI_ViewFetch(dbview, &row);
1609         if (r == ERROR_SUCCESS && !MSI_RecordsAreEqual(rec, row))
1610         {
1611             table->numconflicts++;
1612             goto done;
1613         }
1614         else if (r != ERROR_NO_MORE_ITEMS)
1615             goto done;
1616
1617         r = ERROR_SUCCESS;
1618     }
1619
1620     mergerow = msi_alloc(sizeof(MERGEROW));
1621     if (!mergerow)
1622     {
1623         r = ERROR_OUTOFMEMORY;
1624         goto done;
1625     }
1626
1627     mergerow->data = MSI_CloneRecord(rec);
1628     if (!mergerow->data)
1629     {
1630         r = ERROR_OUTOFMEMORY;
1631         msi_free(mergerow);
1632         goto done;
1633     }
1634
1635     list_add_tail(&table->rows, &mergerow->entry);
1636
1637 done:
1638     msi_free(query);
1639     msiobj_release(&row->hdr);
1640     msiobj_release(&dbview->hdr);
1641     return r;
1642 }
1643
1644 static UINT msi_get_table_labels(MSIDATABASE *db, LPCWSTR table, LPWSTR **labels, DWORD *numlabels)
1645 {
1646     UINT r, i, count;
1647     MSIRECORD *prec = NULL;
1648
1649     r = MSI_DatabaseGetPrimaryKeys(db, table, &prec);
1650     if (r != ERROR_SUCCESS)
1651         return r;
1652
1653     count = MSI_RecordGetFieldCount(prec);
1654     *numlabels = count + 1;
1655     *labels = msi_alloc((*numlabels)*sizeof(LPWSTR));
1656     if (!*labels)
1657     {
1658         r = ERROR_OUTOFMEMORY;
1659         goto end;
1660     }
1661
1662     (*labels)[0] = strdupW(table);
1663     for (i=1; i<=count; i++ )
1664     {
1665         (*labels)[i] = strdupW(MSI_RecordGetString(prec, i));
1666     }
1667
1668 end:
1669     msiobj_release( &prec->hdr );
1670     return r;
1671 }
1672
1673 static UINT msi_get_query_columns(MSIQUERY *query, LPWSTR **columns, DWORD *numcolumns)
1674 {
1675     UINT r, i, count;
1676     MSIRECORD *prec = NULL;
1677
1678     r = MSI_ViewGetColumnInfo(query, MSICOLINFO_NAMES, &prec);
1679     if (r != ERROR_SUCCESS)
1680         return r;
1681
1682     count = MSI_RecordGetFieldCount(prec);
1683     *columns = msi_alloc(count*sizeof(LPWSTR));
1684     if (!*columns)
1685     {
1686         r = ERROR_OUTOFMEMORY;
1687         goto end;
1688     }
1689
1690     for (i=1; i<=count; i++ )
1691     {
1692         (*columns)[i-1] = strdupW(MSI_RecordGetString(prec, i));
1693     }
1694
1695     *numcolumns = count;
1696
1697 end:
1698     msiobj_release( &prec->hdr );
1699     return r;
1700 }
1701
1702 static UINT msi_get_query_types(MSIQUERY *query, LPWSTR **types, DWORD *numtypes)
1703 {
1704     UINT r, i, count;
1705     MSIRECORD *prec = NULL;
1706
1707     r = MSI_ViewGetColumnInfo(query, MSICOLINFO_TYPES, &prec);
1708     if (r != ERROR_SUCCESS)
1709         return r;
1710
1711     count = MSI_RecordGetFieldCount(prec);
1712     *types = msi_alloc(count*sizeof(LPWSTR));
1713     if (!*types)
1714     {
1715         r = ERROR_OUTOFMEMORY;
1716         goto end;
1717     }
1718
1719     *numtypes = count;
1720     for (i=1; i<=count; i++ )
1721     {
1722         (*types)[i-1] = strdupW(MSI_RecordGetString(prec, i));
1723     }
1724
1725 end:
1726     msiobj_release( &prec->hdr );
1727     return r;
1728 }
1729
1730 static void merge_free_rows(MERGETABLE *table)
1731 {
1732     struct list *item, *cursor;
1733
1734     LIST_FOR_EACH_SAFE(item, cursor, &table->rows)
1735     {
1736         MERGEROW *row = LIST_ENTRY(item, MERGEROW, entry);
1737
1738         list_remove(&row->entry);
1739         msiobj_release(&row->data->hdr);
1740         msi_free(row);
1741     }
1742 }
1743
1744 static void free_merge_table(MERGETABLE *table)
1745 {
1746     UINT i;
1747
1748     if (table->labels != NULL)
1749     {
1750         for (i = 0; i < table->numlabels; i++)
1751             msi_free(table->labels[i]);
1752
1753         msi_free(table->labels);
1754     }
1755
1756     if (table->columns != NULL)
1757     {
1758         for (i = 0; i < table->numcolumns; i++)
1759             msi_free(table->columns[i]);
1760
1761         msi_free(table->columns);
1762     }
1763
1764     if (table->types != NULL)
1765     {
1766         for (i = 0; i < table->numtypes; i++)
1767             msi_free(table->types[i]);
1768
1769         msi_free(table->types);
1770     }
1771
1772     msi_free(table->name);
1773     merge_free_rows(table);
1774
1775     msi_free(table);
1776 }
1777
1778 static UINT msi_get_merge_table (MSIDATABASE *db, LPCWSTR name, MERGETABLE **ptable)
1779 {
1780     UINT r;
1781     MERGETABLE *table;
1782     MSIQUERY *mergeview = NULL;
1783
1784     static const WCHAR query[] = {'S','E','L','E','C','T',' ','*',' ',
1785         'F','R','O','M',' ','`','%','s','`',0};
1786
1787     table = msi_alloc_zero(sizeof(MERGETABLE));
1788     if (!table)
1789     {
1790        *ptable = NULL;
1791        return ERROR_OUTOFMEMORY;
1792     }
1793
1794     r = msi_get_table_labels(db, name, &table->labels, &table->numlabels);
1795     if (r != ERROR_SUCCESS)
1796         goto err;
1797
1798     r = MSI_OpenQuery(db, &mergeview, query, name);
1799     if (r != ERROR_SUCCESS)
1800         goto err;
1801
1802     r = msi_get_query_columns(mergeview, &table->columns, &table->numcolumns);
1803     if (r != ERROR_SUCCESS)
1804         goto err;
1805
1806     r = msi_get_query_types(mergeview, &table->types, &table->numtypes);
1807     if (r != ERROR_SUCCESS)
1808         goto err;
1809
1810     list_init(&table->rows);
1811
1812     table->name = strdupW(name);
1813     table->numconflicts = 0;
1814
1815     msiobj_release(&mergeview->hdr);
1816     *ptable = table;
1817     return ERROR_SUCCESS;
1818
1819 err:
1820     msiobj_release(&mergeview->hdr);
1821     free_merge_table(table);
1822     *ptable = NULL;
1823     return r;
1824 }
1825
1826 static UINT merge_diff_tables(MSIRECORD *rec, LPVOID param)
1827 {
1828     MERGEDATA *data = param;
1829     MERGETABLE *table;
1830     MSIQUERY *dbview = NULL;
1831     MSIQUERY *mergeview = NULL;
1832     LPCWSTR name;
1833     UINT r;
1834
1835     static const WCHAR query[] = {'S','E','L','E','C','T',' ','*',' ',
1836         'F','R','O','M',' ','`','%','s','`',0};
1837
1838     name = MSI_RecordGetString(rec, 1);
1839
1840     r = MSI_OpenQuery(data->merge, &mergeview, query, name);
1841     if (r != ERROR_SUCCESS)
1842         goto done;
1843
1844     if (TABLE_Exists(data->db, name))
1845     {
1846         r = MSI_OpenQuery(data->db, &dbview, query, name);
1847         if (r != ERROR_SUCCESS)
1848             goto done;
1849
1850         r = merge_verify_colnames(dbview, mergeview);
1851         if (r != ERROR_SUCCESS)
1852             goto done;
1853
1854         r = merge_verify_primary_keys(data->db, data->merge, name);
1855         if (r != ERROR_SUCCESS)
1856             goto done;
1857     }
1858
1859     r = msi_get_merge_table(data->merge, name, &table);
1860     if (r != ERROR_SUCCESS)
1861         goto done;
1862
1863     data->curtable = table;
1864     data->curview = mergeview;
1865     r = MSI_IterateRecords(mergeview, NULL, merge_diff_row, data);
1866     if (r != ERROR_SUCCESS)
1867     {
1868         free_merge_table(table);
1869         goto done;
1870     }
1871
1872     list_add_tail(data->tabledata, &table->entry);
1873
1874 done:
1875     msiobj_release(&dbview->hdr);
1876     msiobj_release(&mergeview->hdr);
1877     return r;
1878 }
1879
1880 static UINT gather_merge_data(MSIDATABASE *db, MSIDATABASE *merge,
1881                               struct list *tabledata)
1882 {
1883     UINT r;
1884     MSIQUERY *view;
1885     MERGEDATA data;
1886
1887     static const WCHAR query[] = {'S','E','L','E','C','T',' ','*',' ',
1888         'F','R','O','M',' ','`','_','T','a','b','l','e','s','`',0};
1889
1890     r = MSI_DatabaseOpenViewW(merge, query, &view);
1891     if (r != ERROR_SUCCESS)
1892         return r;
1893
1894     data.db = db;
1895     data.merge = merge;
1896     data.tabledata = tabledata;
1897     r = MSI_IterateRecords(view, NULL, merge_diff_tables, &data);
1898
1899     msiobj_release(&view->hdr);
1900     return r;
1901 }
1902
1903 static UINT merge_table(MSIDATABASE *db, MERGETABLE *table)
1904 {
1905     UINT r;
1906     MERGEROW *row;
1907     MSIVIEW *tv;
1908
1909     if (!TABLE_Exists(db, table->name))
1910     {
1911         r = msi_add_table_to_db(db, table->columns, table->types,
1912                table->labels, table->numlabels, table->numcolumns);
1913         if (r != ERROR_SUCCESS)
1914            return ERROR_FUNCTION_FAILED;
1915     }
1916
1917     LIST_FOR_EACH_ENTRY(row, &table->rows, MERGEROW, entry)
1918     {
1919         r = TABLE_CreateView(db, table->name, &tv);
1920         if (r != ERROR_SUCCESS)
1921             return r;
1922
1923         r = tv->ops->insert_row(tv, row->data, -1, FALSE);
1924         tv->ops->delete(tv);
1925
1926         if (r != ERROR_SUCCESS)
1927             return r;
1928     }
1929
1930     return ERROR_SUCCESS;
1931 }
1932
1933 static UINT update_merge_errors(MSIDATABASE *db, LPCWSTR error,
1934                                 LPWSTR table, DWORD numconflicts)
1935 {
1936     UINT r;
1937     MSIQUERY *view;
1938
1939     static const WCHAR create[] = {
1940         'C','R','E','A','T','E',' ','T','A','B','L','E',' ',
1941         '`','%','s','`',' ','(','`','T','a','b','l','e','`',' ',
1942         'C','H','A','R','(','2','5','5',')',' ','N','O','T',' ',
1943         'N','U','L','L',',',' ','`','N','u','m','R','o','w','M','e','r','g','e',
1944         'C','o','n','f','l','i','c','t','s','`',' ','S','H','O','R','T',' ',
1945         'N','O','T',' ','N','U','L','L',' ','P','R','I','M','A','R','Y',' ',
1946         'K','E','Y',' ','`','T','a','b','l','e','`',')',0};
1947     static const WCHAR insert[] = {
1948         'I','N','S','E','R','T',' ','I','N','T','O',' ',
1949         '`','%','s','`',' ','(','`','T','a','b','l','e','`',',',' ',
1950         '`','N','u','m','R','o','w','M','e','r','g','e',
1951         'C','o','n','f','l','i','c','t','s','`',')',' ','V','A','L','U','E','S',
1952         ' ','(','\'','%','s','\'',',',' ','%','d',')',0};
1953
1954     if (!TABLE_Exists(db, error))
1955     {
1956         r = MSI_OpenQuery(db, &view, create, error);
1957         if (r != ERROR_SUCCESS)
1958             return r;
1959
1960         r = MSI_ViewExecute(view, NULL);
1961         msiobj_release(&view->hdr);
1962         if (r != ERROR_SUCCESS)
1963             return r;
1964     }
1965
1966     r = MSI_OpenQuery(db, &view, insert, error, table, numconflicts);
1967     if (r != ERROR_SUCCESS)
1968         return r;
1969
1970     r = MSI_ViewExecute(view, NULL);
1971     msiobj_release(&view->hdr);
1972     return r;
1973 }
1974
1975 UINT WINAPI MsiDatabaseMergeW(MSIHANDLE hDatabase, MSIHANDLE hDatabaseMerge,
1976                               LPCWSTR szTableName)
1977 {
1978     struct list tabledata = LIST_INIT(tabledata);
1979     struct list *item, *cursor;
1980     MSIDATABASE *db, *merge;
1981     MERGETABLE *table;
1982     BOOL conflicts;
1983     UINT r;
1984
1985     TRACE("(%d, %d, %s)\n", hDatabase, hDatabaseMerge,
1986           debugstr_w(szTableName));
1987
1988     if (szTableName && !*szTableName)
1989         return ERROR_INVALID_TABLE;
1990
1991     db = msihandle2msiinfo(hDatabase, MSIHANDLETYPE_DATABASE);
1992     merge = msihandle2msiinfo(hDatabaseMerge, MSIHANDLETYPE_DATABASE);
1993     if (!db || !merge)
1994     {
1995         r = ERROR_INVALID_HANDLE;
1996         goto done;
1997     }
1998
1999     r = gather_merge_data(db, merge, &tabledata);
2000     if (r != ERROR_SUCCESS)
2001         goto done;
2002
2003     conflicts = FALSE;
2004     LIST_FOR_EACH_ENTRY(table, &tabledata, MERGETABLE, entry)
2005     {
2006         if (table->numconflicts)
2007         {
2008             conflicts = TRUE;
2009
2010             r = update_merge_errors(db, szTableName, table->name,
2011                                     table->numconflicts);
2012             if (r != ERROR_SUCCESS)
2013                 break;
2014         }
2015         else
2016         {
2017             r = merge_table(db, table);
2018             if (r != ERROR_SUCCESS)
2019                 break;
2020         }
2021     }
2022
2023     LIST_FOR_EACH_SAFE(item, cursor, &tabledata)
2024     {
2025         MERGETABLE *table = LIST_ENTRY(item, MERGETABLE, entry);
2026         list_remove(&table->entry);
2027         free_merge_table(table);
2028     }
2029
2030     if (conflicts)
2031         r = ERROR_FUNCTION_FAILED;
2032
2033 done:
2034     msiobj_release(&db->hdr);
2035     msiobj_release(&merge->hdr);
2036     return r;
2037 }
2038
2039 MSIDBSTATE WINAPI MsiGetDatabaseState( MSIHANDLE handle )
2040 {
2041     MSIDBSTATE ret = MSIDBSTATE_READ;
2042     MSIDATABASE *db;
2043
2044     TRACE("%d\n", handle);
2045
2046     db = msihandle2msiinfo( handle, MSIHANDLETYPE_DATABASE );
2047     if( !db )
2048     {
2049         IWineMsiRemoteDatabase *remote_database;
2050
2051         remote_database = (IWineMsiRemoteDatabase *)msi_get_remote( handle );
2052         if ( !remote_database )
2053             return MSIDBSTATE_ERROR;
2054
2055         IWineMsiRemoteDatabase_Release( remote_database );
2056         WARN("MsiGetDatabaseState not allowed during a custom action!\n");
2057
2058         return MSIDBSTATE_READ;
2059     }
2060
2061     if (db->mode != MSIDBOPEN_READONLY )
2062         ret = MSIDBSTATE_WRITE;
2063     msiobj_release( &db->hdr );
2064
2065     return ret;
2066 }
2067
2068 typedef struct _msi_remote_database_impl {
2069     IWineMsiRemoteDatabase IWineMsiRemoteDatabase_iface;
2070     MSIHANDLE database;
2071     LONG refs;
2072 } msi_remote_database_impl;
2073
2074 static inline msi_remote_database_impl *impl_from_IWineMsiRemoteDatabase( IWineMsiRemoteDatabase *iface )
2075 {
2076     return CONTAINING_RECORD(iface, msi_remote_database_impl, IWineMsiRemoteDatabase_iface);
2077 }
2078
2079 static HRESULT WINAPI mrd_QueryInterface( IWineMsiRemoteDatabase *iface,
2080                                           REFIID riid,LPVOID *ppobj)
2081 {
2082     if( IsEqualCLSID( riid, &IID_IUnknown ) ||
2083         IsEqualCLSID( riid, &IID_IWineMsiRemoteDatabase ) )
2084     {
2085         IUnknown_AddRef( iface );
2086         *ppobj = iface;
2087         return S_OK;
2088     }
2089
2090     return E_NOINTERFACE;
2091 }
2092
2093 static ULONG WINAPI mrd_AddRef( IWineMsiRemoteDatabase *iface )
2094 {
2095     msi_remote_database_impl* This = impl_from_IWineMsiRemoteDatabase( iface );
2096
2097     return InterlockedIncrement( &This->refs );
2098 }
2099
2100 static ULONG WINAPI mrd_Release( IWineMsiRemoteDatabase *iface )
2101 {
2102     msi_remote_database_impl* This = impl_from_IWineMsiRemoteDatabase( iface );
2103     ULONG r;
2104
2105     r = InterlockedDecrement( &This->refs );
2106     if (r == 0)
2107     {
2108         MsiCloseHandle( This->database );
2109         msi_free( This );
2110     }
2111     return r;
2112 }
2113
2114 static HRESULT WINAPI mrd_IsTablePersistent( IWineMsiRemoteDatabase *iface,
2115                                              LPCWSTR table, MSICONDITION *persistent )
2116 {
2117     msi_remote_database_impl *This = impl_from_IWineMsiRemoteDatabase( iface );
2118     *persistent = MsiDatabaseIsTablePersistentW(This->database, table);
2119     return S_OK;
2120 }
2121
2122 static HRESULT WINAPI mrd_GetPrimaryKeys( IWineMsiRemoteDatabase *iface,
2123                                           LPCWSTR table, MSIHANDLE *keys )
2124 {
2125     msi_remote_database_impl *This = impl_from_IWineMsiRemoteDatabase( iface );
2126     UINT r = MsiDatabaseGetPrimaryKeysW(This->database, table, keys);
2127     return HRESULT_FROM_WIN32(r);
2128 }
2129
2130 static HRESULT WINAPI mrd_GetSummaryInformation( IWineMsiRemoteDatabase *iface,
2131                                                 UINT updatecount, MSIHANDLE *suminfo )
2132 {
2133     msi_remote_database_impl *This = impl_from_IWineMsiRemoteDatabase( iface );
2134     UINT r = MsiGetSummaryInformationW(This->database, NULL, updatecount, suminfo);
2135     return HRESULT_FROM_WIN32(r);
2136 }
2137
2138 static HRESULT WINAPI mrd_OpenView( IWineMsiRemoteDatabase *iface,
2139                                     LPCWSTR query, MSIHANDLE *view )
2140 {
2141     msi_remote_database_impl *This = impl_from_IWineMsiRemoteDatabase( iface );
2142     UINT r = MsiDatabaseOpenViewW(This->database, query, view);
2143     return HRESULT_FROM_WIN32(r);
2144 }
2145
2146 static HRESULT WINAPI mrd_SetMsiHandle( IWineMsiRemoteDatabase *iface, MSIHANDLE handle )
2147 {
2148     msi_remote_database_impl* This = impl_from_IWineMsiRemoteDatabase( iface );
2149     This->database = handle;
2150     return S_OK;
2151 }
2152
2153 static const IWineMsiRemoteDatabaseVtbl msi_remote_database_vtbl =
2154 {
2155     mrd_QueryInterface,
2156     mrd_AddRef,
2157     mrd_Release,
2158     mrd_IsTablePersistent,
2159     mrd_GetPrimaryKeys,
2160     mrd_GetSummaryInformation,
2161     mrd_OpenView,
2162     mrd_SetMsiHandle,
2163 };
2164
2165 HRESULT create_msi_remote_database( IUnknown *pOuter, LPVOID *ppObj )
2166 {
2167     msi_remote_database_impl *This;
2168
2169     This = msi_alloc( sizeof *This );
2170     if (!This)
2171         return E_OUTOFMEMORY;
2172
2173     This->IWineMsiRemoteDatabase_iface.lpVtbl = &msi_remote_database_vtbl;
2174     This->database = 0;
2175     This->refs = 1;
2176
2177     *ppObj = This;
2178
2179     return S_OK;
2180 }