reactos/dll/win32/msi/record.c

   1 /*
   2  * Implementation of the Microsoft Installer (msi.dll)
   3  *
   4  * Copyright 2002-2004 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
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "winerror.h"
  29 #include "wine/debug.h"
  30 #include "wine/unicode.h"
  31 #include "msi.h"
  32 #include "msiquery.h"
  33 #include "msipriv.h"
  34 #include "objidl.h"
  35 #include "winnls.h"
  36 #include "ole2.h"
  37
  38 #include "winreg.h"
  39 #include "shlwapi.h"
  40
  41 #include "query.h"
  42
  43 WINE_DEFAULT_DEBUG_CHANNEL(msidb);
  44
  45 #define MSIFIELD_NULL   0
  46 #define MSIFIELD_INT    1
  47 #define MSIFIELD_WSTR   3
  48 #define MSIFIELD_STREAM 4
  49 #define MSIFIELD_INTPTR 5
  50
  51 static void MSI_FreeField( MSIFIELD *field )
  52 {
  53     switch( field->type )
  54     {
  55     case MSIFIELD_NULL:
  56     case MSIFIELD_INT:
  57     case MSIFIELD_INTPTR:
  58         break;
  59     case MSIFIELD_WSTR:
  60         msi_free( field->u.szwVal);
  61         break;
  62     case MSIFIELD_STREAM:
  63         IStream_Release( field->u.stream );
  64         break;
  65     default:
  66         ERR("Invalid field type %d\n", field->type);
  67     }
  68 }
  69
  70 void MSI_CloseRecord( MSIOBJECTHDR *arg )
  71 {
  72     MSIRECORD *rec = (MSIRECORD *) arg;
  73     UINT i;
  74
  75     for( i=0; i<=rec->count; i++ )
  76         MSI_FreeField( &rec->fields[i] );
  77 }
  78
  79 MSIRECORD *MSI_CreateRecord( UINT cParams )
  80 {
  81     MSIRECORD *rec;
  82     UINT len;
  83
  84     TRACE("%d\n", cParams);
  85
  86     if( cParams>65535 )
  87         return NULL;
  88
  89     len = sizeof (MSIRECORD) + sizeof (MSIFIELD)*cParams;
  90     rec = alloc_msiobject( MSIHANDLETYPE_RECORD, len, MSI_CloseRecord );
  91     if( rec )
  92         rec->count = cParams;
  93     return rec;
  94 }
  95
  96 MSIHANDLE WINAPI MsiCreateRecord( UINT cParams )
  97 {
  98     MSIRECORD *rec;
  99     MSIHANDLE ret = 0;
 100
 101     TRACE("%d\n", cParams);
 102
 103     rec = MSI_CreateRecord( cParams );
 104     if( rec )
 105     {
 106         ret = alloc_msihandle( &rec->hdr );
 107         msiobj_release( &rec->hdr );
 108     }
 109     return ret;
 110 }
 111
 112 UINT MSI_RecordGetFieldCount( const MSIRECORD *rec )
 113 {
 114     return rec->count;
 115 }
 116
 117 UINT WINAPI MsiRecordGetFieldCount( MSIHANDLE handle )
 118 {
 119     MSIRECORD *rec;
 120     UINT ret;
 121
 122     TRACE("%d\n", handle );
 123
 124     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 125     if( !rec )
 126         return -1;
 127
 128     msiobj_lock( &rec->hdr );
 129     ret = MSI_RecordGetFieldCount( rec );
 130     msiobj_unlock( &rec->hdr );
 131     msiobj_release( &rec->hdr );
 132
 133     return ret;
 134 }
 135
 136 static BOOL string2intW( LPCWSTR str, int *out )
 137 {
 138     int x = 0;
 139     LPCWSTR p = str;
 140
 141     if( *p == '-' ) /* skip the minus sign */
 142         p++;
 143     while ( *p )
 144     {
 145         if( (*p < '0') || (*p > '9') )
 146             return FALSE;
 147         x *= 10;
 148         x += (*p - '0');
 149         p++;
 150     }
 151
 152     if( str[0] == '-' ) /* check if it's negative */
 153         x = -x;
 154     *out = x;
 155
 156     return TRUE;
 157 }
 158
 159 WCHAR *msi_strdupW( const WCHAR *value, int len )
 160 {
 161     WCHAR *ret;
 162
 163     if (!value) return NULL;
 164     if (!(ret = msi_alloc( (len + 1) * sizeof(WCHAR) ))) return NULL;
 165     memcpy( ret, value, len * sizeof(WCHAR) );
 166     ret[len] = 0;
 167     return ret;
 168 }
 169
 170 UINT MSI_RecordCopyField( MSIRECORD *in_rec, UINT in_n,
 171                           MSIRECORD *out_rec, UINT out_n )
 172 {
 173     UINT r = ERROR_SUCCESS;
 174
 175     msiobj_lock( &in_rec->hdr );
 176
 177     if ( in_n > in_rec->count || out_n > out_rec->count )
 178         r = ERROR_FUNCTION_FAILED;
 179     else if ( in_rec != out_rec || in_n != out_n )
 180     {
 181         LPWSTR str;
 182         MSIFIELD *in, *out;
 183
 184         in = &in_rec->fields[in_n];
 185         out = &out_rec->fields[out_n];
 186
 187         switch ( in->type )
 188         {
 189         case MSIFIELD_NULL:
 190             break;
 191         case MSIFIELD_INT:
 192             out->u.iVal = in->u.iVal;
 193             break;
 194         case MSIFIELD_INTPTR:
 195             out->u.pVal = in->u.pVal;
 196             break;
 197         case MSIFIELD_WSTR:
 198             if ((str = msi_strdupW( in->u.szwVal, in->len )))
 199             {
 200                 out->u.szwVal = str;
 201                 out->len = in->len;
 202             }
 203             else r = ERROR_OUTOFMEMORY;
 204             break;
 205         case MSIFIELD_STREAM:
 206             IStream_AddRef( in->u.stream );
 207             out->u.stream = in->u.stream;
 208             break;
 209         default:
 210             ERR("invalid field type %d\n", in->type);
 211         }
 212         if (r == ERROR_SUCCESS)
 213             out->type = in->type;
 214     }
 215
 216     msiobj_unlock( &in_rec->hdr );
 217     return r;
 218 }
 219
 220 INT_PTR MSI_RecordGetIntPtr( MSIRECORD *rec, UINT iField )
 221 {
 222     int ret;
 223
 224     TRACE( "%p %d\n", rec, iField );
 225
 226     if( iField > rec->count )
 227         return MININT_PTR;
 228
 229     switch( rec->fields[iField].type )
 230     {
 231     case MSIFIELD_INT:
 232         return rec->fields[iField].u.iVal;
 233     case MSIFIELD_INTPTR:
 234         return rec->fields[iField].u.pVal;
 235     case MSIFIELD_WSTR:
 236         if( string2intW( rec->fields[iField].u.szwVal, &ret ) )
 237             return ret;
 238         return MININT_PTR;
 239     default:
 240         break;
 241     }
 242
 243     return MININT_PTR;
 244 }
 245
 246 int MSI_RecordGetInteger( MSIRECORD *rec, UINT iField)
 247 {
 248     int ret = 0;
 249
 250     TRACE("%p %d\n", rec, iField );
 251
 252     if( iField > rec->count )
 253         return MSI_NULL_INTEGER;
 254
 255     switch( rec->fields[iField].type )
 256     {
 257     case MSIFIELD_INT:
 258         return rec->fields[iField].u.iVal;
 259     case MSIFIELD_INTPTR:
 260         return rec->fields[iField].u.pVal;
 261     case MSIFIELD_WSTR:
 262         if( string2intW( rec->fields[iField].u.szwVal, &ret ) )
 263             return ret;
 264         return MSI_NULL_INTEGER;
 265     default:
 266         break;
 267     }
 268
 269     return MSI_NULL_INTEGER;
 270 }
 271
 272 int WINAPI MsiRecordGetInteger( MSIHANDLE handle, UINT iField)
 273 {
 274     MSIRECORD *rec;
 275     UINT ret;
 276
 277     TRACE("%d %d\n", handle, iField );
 278
 279     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 280     if( !rec )
 281         return MSI_NULL_INTEGER;
 282
 283     msiobj_lock( &rec->hdr );
 284     ret = MSI_RecordGetInteger( rec, iField );
 285     msiobj_unlock( &rec->hdr );
 286     msiobj_release( &rec->hdr );
 287
 288     return ret;
 289 }
 290
 291 UINT WINAPI MsiRecordClearData( MSIHANDLE handle )
 292 {
 293     MSIRECORD *rec;
 294     UINT i;
 295
 296     TRACE("%d\n", handle );
 297
 298     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 299     if( !rec )
 300         return ERROR_INVALID_HANDLE;
 301
 302     msiobj_lock( &rec->hdr );
 303     for( i=0; i<=rec->count; i++)
 304     {
 305         MSI_FreeField( &rec->fields[i] );
 306         rec->fields[i].type = MSIFIELD_NULL;
 307         rec->fields[i].u.iVal = 0;
 308     }
 309     msiobj_unlock( &rec->hdr );
 310     msiobj_release( &rec->hdr );
 311
 312     return ERROR_SUCCESS;
 313 }
 314
 315 UINT MSI_RecordSetIntPtr( MSIRECORD *rec, UINT iField, INT_PTR pVal )
 316 {
 317     TRACE("%p %u %ld\n", rec, iField, pVal);
 318
 319     if( iField > rec->count )
 320         return ERROR_INVALID_PARAMETER;
 321
 322     MSI_FreeField( &rec->fields[iField] );
 323     rec->fields[iField].type = MSIFIELD_INTPTR;
 324     rec->fields[iField].u.pVal = pVal;
 325
 326     return ERROR_SUCCESS;
 327 }
 328
 329 UINT MSI_RecordSetInteger( MSIRECORD *rec, UINT iField, int iVal )
 330 {
 331     TRACE("%p %u %d\n", rec, iField, iVal);
 332
 333     if( iField > rec->count )
 334         return ERROR_INVALID_PARAMETER;
 335
 336     MSI_FreeField( &rec->fields[iField] );
 337     rec->fields[iField].type = MSIFIELD_INT;
 338     rec->fields[iField].u.iVal = iVal;
 339
 340     return ERROR_SUCCESS;
 341 }
 342
 343 UINT WINAPI MsiRecordSetInteger( MSIHANDLE handle, UINT iField, int iVal )
 344 {
 345     MSIRECORD *rec;
 346     UINT ret;
 347
 348     TRACE("%d %u %d\n", handle, iField, iVal);
 349
 350     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 351     if( !rec )
 352         return ERROR_INVALID_HANDLE;
 353
 354     msiobj_lock( &rec->hdr );
 355     ret = MSI_RecordSetInteger( rec, iField, iVal );
 356     msiobj_unlock( &rec->hdr );
 357     msiobj_release( &rec->hdr );
 358     return ret;
 359 }
 360
 361 BOOL MSI_RecordIsNull( MSIRECORD *rec, UINT iField )
 362 {
 363     BOOL r = TRUE;
 364
 365     TRACE("%p %d\n", rec, iField );
 366
 367     r = ( iField > rec->count ) ||
 368         ( rec->fields[iField].type == MSIFIELD_NULL );
 369
 370     return r;
 371 }
 372
 373 BOOL WINAPI MsiRecordIsNull( MSIHANDLE handle, UINT iField )
 374 {
 375     MSIRECORD *rec;
 376     UINT ret;
 377
 378     TRACE("%d %d\n", handle, iField );
 379
 380     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 381     if( !rec )
 382         return 0;
 383     msiobj_lock( &rec->hdr );
 384     ret = MSI_RecordIsNull( rec, iField );
 385     msiobj_unlock( &rec->hdr );
 386     msiobj_release( &rec->hdr );
 387     return ret;
 388
 389 }
 390
 391 UINT MSI_RecordGetStringA(MSIRECORD *rec, UINT iField,
 392                LPSTR szValue, LPDWORD pcchValue)
 393 {
 394     UINT len = 0, ret = ERROR_SUCCESS;
 395     CHAR buffer[16];
 396
 397     TRACE("%p %d %p %p\n", rec, iField, szValue, pcchValue);
 398
 399     if( iField > rec->count )
 400     {
 401         if ( szValue && *pcchValue > 0 )
 402             szValue[0] = 0;
 403
 404         *pcchValue = 0;
 405         return ERROR_SUCCESS;
 406     }
 407
 408     switch( rec->fields[iField].type )
 409     {
 410     case MSIFIELD_INT:
 411         wsprintfA(buffer, "%d", rec->fields[iField].u.iVal);
 412         len = lstrlenA( buffer );
 413         if (szValue)
 414             lstrcpynA(szValue, buffer, *pcchValue);
 415         break;
 416     case MSIFIELD_WSTR:
 417         len = WideCharToMultiByte( CP_ACP, 0, rec->fields[iField].u.szwVal,
 418                                    rec->fields[iField].len + 1, NULL, 0 , NULL, NULL );
 419         if (szValue)
 420             WideCharToMultiByte( CP_ACP, 0, rec->fields[iField].u.szwVal,
 421                                  rec->fields[iField].len + 1, szValue, *pcchValue, NULL, NULL );
 422         if( szValue && *pcchValue && len>*pcchValue )
 423             szValue[*pcchValue-1] = 0;
 424         if( len )
 425             len--;
 426         break;
 427     case MSIFIELD_NULL:
 428         if( szValue && *pcchValue > 0 )
 429             szValue[0] = 0;
 430         break;
 431     default:
 432         ret = ERROR_INVALID_PARAMETER;
 433         break;
 434     }
 435
 436     if( szValue && *pcchValue <= len )
 437         ret = ERROR_MORE_DATA;
 438     *pcchValue = len;
 439
 440     return ret;
 441 }
 442
 443 UINT WINAPI MsiRecordGetStringA(MSIHANDLE handle, UINT iField,
 444                LPSTR szValue, LPDWORD pcchValue)
 445 {
 446     MSIRECORD *rec;
 447     UINT ret;
 448
 449     TRACE("%d %d %p %p\n", handle, iField, szValue, pcchValue);
 450
 451     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 452     if( !rec )
 453         return ERROR_INVALID_HANDLE;
 454     msiobj_lock( &rec->hdr );
 455     ret = MSI_RecordGetStringA( rec, iField, szValue, pcchValue);
 456     msiobj_unlock( &rec->hdr );
 457     msiobj_release( &rec->hdr );
 458     return ret;
 459 }
 460
 461 const WCHAR *msi_record_get_string( const MSIRECORD *rec, UINT field, int *len )
 462 {
 463     if (field > rec->count)
 464         return NULL;
 465
 466     if (rec->fields[field].type != MSIFIELD_WSTR)
 467         return NULL;
 468
 469     if (len) *len = rec->fields[field].len;
 470
 471     return rec->fields[field].u.szwVal;
 472 }
 473
 474 const WCHAR *MSI_RecordGetString( const MSIRECORD *rec, UINT iField )
 475 {
 476     return msi_record_get_string( rec, iField, NULL );
 477 }
 478
 479 UINT MSI_RecordGetStringW(MSIRECORD *rec, UINT iField,
 480                LPWSTR szValue, LPDWORD pcchValue)
 481 {
 482     static const WCHAR szFormat[] = {'%','d',0};
 483     UINT len = 0, ret = ERROR_SUCCESS;
 484     WCHAR buffer[16];
 485
 486     TRACE("%p %d %p %p\n", rec, iField, szValue, pcchValue);
 487
 488     if( iField > rec->count )
 489     {
 490         if ( szValue && *pcchValue > 0 )
 491             szValue[0] = 0;
 492
 493         *pcchValue = 0;
 494         return ERROR_SUCCESS;
 495     }
 496
 497     switch( rec->fields[iField].type )
 498     {
 499     case MSIFIELD_INT:
 500         wsprintfW(buffer, szFormat, rec->fields[iField].u.iVal);
 501         len = lstrlenW( buffer );
 502         if (szValue)
 503             lstrcpynW(szValue, buffer, *pcchValue);
 504         break;
 505     case MSIFIELD_WSTR:
 506         len = rec->fields[iField].len;
 507         if (szValue)
 508             memcpy( szValue, rec->fields[iField].u.szwVal, min(len + 1, *pcchValue) * sizeof(WCHAR) );
 509         break;
 510     case MSIFIELD_NULL:
 511         if( szValue && *pcchValue > 0 )
 512             szValue[0] = 0;
 513         break;
 514     default:
 515         break;
 516     }
 517
 518     if( szValue && *pcchValue <= len )
 519         ret = ERROR_MORE_DATA;
 520     *pcchValue = len;
 521
 522     return ret;
 523 }
 524
 525 UINT WINAPI MsiRecordGetStringW(MSIHANDLE handle, UINT iField,
 526                LPWSTR szValue, LPDWORD pcchValue)
 527 {
 528     MSIRECORD *rec;
 529     UINT ret;
 530
 531     TRACE("%d %d %p %p\n", handle, iField, szValue, pcchValue);
 532
 533     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 534     if( !rec )
 535         return ERROR_INVALID_HANDLE;
 536
 537     msiobj_lock( &rec->hdr );
 538     ret = MSI_RecordGetStringW( rec, iField, szValue, pcchValue );
 539     msiobj_unlock( &rec->hdr );
 540     msiobj_release( &rec->hdr );
 541     return ret;
 542 }
 543
 544 static UINT msi_get_stream_size( IStream *stm )
 545 {
 546     STATSTG stat;
 547     HRESULT r;
 548
 549     r = IStream_Stat( stm, &stat, STATFLAG_NONAME );
 550     if( FAILED(r) )
 551         return 0;
 552     return stat.cbSize.QuadPart;
 553 }
 554
 555 static UINT MSI_RecordDataSize(MSIRECORD *rec, UINT iField)
 556 {
 557     TRACE("%p %d\n", rec, iField);
 558
 559     if( iField > rec->count )
 560         return 0;
 561
 562     switch( rec->fields[iField].type )
 563     {
 564     case MSIFIELD_INT:
 565         return sizeof (INT);
 566     case MSIFIELD_WSTR:
 567         return rec->fields[iField].len;
 568     case MSIFIELD_NULL:
 569         break;
 570     case MSIFIELD_STREAM:
 571         return msi_get_stream_size( rec->fields[iField].u.stream );
 572     }
 573     return 0;
 574 }
 575
 576 UINT WINAPI MsiRecordDataSize(MSIHANDLE handle, UINT iField)
 577 {
 578     MSIRECORD *rec;
 579     UINT ret;
 580
 581     TRACE("%d %d\n", handle, iField);
 582
 583     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 584     if( !rec )
 585         return 0;
 586     msiobj_lock( &rec->hdr );
 587     ret = MSI_RecordDataSize( rec, iField);
 588     msiobj_unlock( &rec->hdr );
 589     msiobj_release( &rec->hdr );
 590     return ret;
 591 }
 592
 593 UINT WINAPI MsiRecordSetStringA( MSIHANDLE handle, UINT iField, LPCSTR szValue )
 594 {
 595     WCHAR *valueW = NULL;
 596     MSIRECORD *rec;
 597     UINT ret;
 598
 599     TRACE("%d %d %s\n", handle, iField, debugstr_a(szValue));
 600
 601     if (szValue && !(valueW = strdupAtoW( szValue ))) return ERROR_OUTOFMEMORY;
 602
 603     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 604     if( !rec )
 605     {
 606         msi_free( valueW );
 607         return ERROR_INVALID_HANDLE;
 608     }
 609     msiobj_lock( &rec->hdr );
 610     ret = MSI_RecordSetStringW( rec, iField, valueW );
 611     msiobj_unlock( &rec->hdr );
 612     msiobj_release( &rec->hdr );
 613     msi_free( valueW );
 614     return ret;
 615 }
 616
 617 UINT msi_record_set_string( MSIRECORD *rec, UINT field, const WCHAR *value, int len )
 618 {
 619     if (field > rec->count)
 620         return ERROR_INVALID_FIELD;
 621
 622     MSI_FreeField( &rec->fields[field] );
 623
 624     if (value && len < 0) len = strlenW( value );
 625
 626     if (value && len)
 627     {
 628         rec->fields[field].type = MSIFIELD_WSTR;
 629         rec->fields[field].u.szwVal = msi_strdupW( value, len );
 630         rec->fields[field].len = len;
 631     }
 632     else
 633     {
 634         rec->fields[field].type = MSIFIELD_NULL;
 635         rec->fields[field].u.szwVal = NULL;
 636         rec->fields[field].len = 0;
 637     }
 638     return 0;
 639 }
 640
 641 UINT MSI_RecordSetStringW( MSIRECORD *rec, UINT iField, LPCWSTR szValue )
 642 {
 643     TRACE("%p %d %s\n", rec, iField, debugstr_w(szValue));
 644
 645     return msi_record_set_string( rec, iField, szValue, -1 );
 646 }
 647
 648 UINT WINAPI MsiRecordSetStringW( MSIHANDLE handle, UINT iField, LPCWSTR szValue )
 649 {
 650     MSIRECORD *rec;
 651     UINT ret;
 652
 653     TRACE("%d %d %s\n", handle, iField, debugstr_w(szValue));
 654
 655     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 656     if( !rec )
 657         return ERROR_INVALID_HANDLE;
 658
 659     msiobj_lock( &rec->hdr );
 660     ret = MSI_RecordSetStringW( rec, iField, szValue );
 661     msiobj_unlock( &rec->hdr );
 662     msiobj_release( &rec->hdr );
 663     return ret;
 664 }
 665
 666 /* read the data in a file into an IStream */
 667 static UINT RECORD_StreamFromFile(LPCWSTR szFile, IStream **pstm)
 668 {
 669     DWORD sz, szHighWord = 0, read;
 670     HANDLE handle;
 671     HGLOBAL hGlob = 0;
 672     HRESULT hr;
 673     ULARGE_INTEGER ulSize;
 674
 675     TRACE("reading %s\n", debugstr_w(szFile));
 676
 677     /* read the file into memory */
 678     handle = CreateFileW(szFile, GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL);
 679     if( handle == INVALID_HANDLE_VALUE )
 680         return GetLastError();
 681     sz = GetFileSize(handle, &szHighWord);
 682     if( sz != INVALID_FILE_SIZE && szHighWord == 0 )
 683     {
 684         hGlob = GlobalAlloc(GMEM_FIXED, sz);
 685         if( hGlob )
 686         {
 687             BOOL r = ReadFile(handle, hGlob, sz, &read, NULL);
 688             if( !r )
 689             {
 690                 GlobalFree(hGlob);
 691                 hGlob = 0;
 692             }
 693         }
 694     }
 695     CloseHandle(handle);
 696     if( !hGlob )
 697         return ERROR_FUNCTION_FAILED;
 698
 699     /* make a stream out of it, and set the correct file size */
 700     hr = CreateStreamOnHGlobal(hGlob, TRUE, pstm);
 701     if( FAILED( hr ) )
 702     {
 703         GlobalFree(hGlob);
 704         return ERROR_FUNCTION_FAILED;
 705     }
 706
 707     /* set the correct size - CreateStreamOnHGlobal screws it up */
 708     ulSize.QuadPart = sz;
 709     IStream_SetSize(*pstm, ulSize);
 710
 711     TRACE("read %s, %d bytes into IStream %p\n", debugstr_w(szFile), sz, *pstm);
 712
 713     return ERROR_SUCCESS;
 714 }
 715
 716 UINT MSI_RecordSetStream(MSIRECORD *rec, UINT iField, IStream *stream)
 717 {
 718     if ( (iField == 0) || (iField > rec->count) )
 719         return ERROR_INVALID_PARAMETER;
 720
 721     MSI_FreeField( &rec->fields[iField] );
 722     rec->fields[iField].type = MSIFIELD_STREAM;
 723     rec->fields[iField].u.stream = stream;
 724
 725     return ERROR_SUCCESS;
 726 }
 727
 728 UINT MSI_RecordSetStreamFromFileW(MSIRECORD *rec, UINT iField, LPCWSTR szFilename)
 729 {
 730     IStream *stm = NULL;
 731     HRESULT r;
 732
 733     if( (iField == 0) || (iField > rec->count) )
 734         return ERROR_INVALID_PARAMETER;
 735
 736     /* no filename means we should seek back to the start of the stream */
 737     if( !szFilename )
 738     {
 739         LARGE_INTEGER ofs;
 740         ULARGE_INTEGER cur;
 741
 742         if( rec->fields[iField].type != MSIFIELD_STREAM )
 743             return ERROR_INVALID_FIELD;
 744
 745         stm = rec->fields[iField].u.stream;
 746         if( !stm )
 747             return ERROR_INVALID_FIELD;
 748
 749         ofs.QuadPart = 0;
 750         r = IStream_Seek( stm, ofs, STREAM_SEEK_SET, &cur );
 751         if( FAILED( r ) )
 752             return ERROR_FUNCTION_FAILED;
 753     }
 754     else
 755     {
 756         /* read the file into a stream and save the stream in the record */
 757         r = RECORD_StreamFromFile(szFilename, &stm);
 758         if( r != ERROR_SUCCESS )
 759             return r;
 760
 761         /* if all's good, store it in the record */
 762         MSI_RecordSetStream(rec, iField, stm);
 763     }
 764
 765     return ERROR_SUCCESS;
 766 }
 767
 768 UINT WINAPI MsiRecordSetStreamA(MSIHANDLE hRecord, UINT iField, LPCSTR szFilename)
 769 {
 770     LPWSTR wstr = NULL;
 771     UINT ret;
 772
 773     TRACE("%d %d %s\n", hRecord, iField, debugstr_a(szFilename));
 774
 775     if( szFilename )
 776     {
 777         wstr = strdupAtoW( szFilename );
 778         if( !wstr )
 779              return ERROR_OUTOFMEMORY;
 780     }
 781     ret = MsiRecordSetStreamW(hRecord, iField, wstr);
 782     msi_free(wstr);
 783
 784     return ret;
 785 }
 786
 787 UINT WINAPI MsiRecordSetStreamW(MSIHANDLE handle, UINT iField, LPCWSTR szFilename)
 788 {
 789     MSIRECORD *rec;
 790     UINT ret;
 791
 792     TRACE("%d %d %s\n", handle, iField, debugstr_w(szFilename));
 793
 794     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 795     if( !rec )
 796         return ERROR_INVALID_HANDLE;
 797
 798     msiobj_lock( &rec->hdr );
 799     ret = MSI_RecordSetStreamFromFileW( rec, iField, szFilename );
 800     msiobj_unlock( &rec->hdr );
 801     msiobj_release( &rec->hdr );
 802     return ret;
 803 }
 804
 805 UINT MSI_RecordReadStream(MSIRECORD *rec, UINT iField, char *buf, LPDWORD sz)
 806 {
 807     ULONG count;
 808     HRESULT r;
 809     IStream *stm;
 810
 811     TRACE("%p %d %p %p\n", rec, iField, buf, sz);
 812
 813     if( !sz )
 814         return ERROR_INVALID_PARAMETER;
 815
 816     if( iField > rec->count)
 817         return ERROR_INVALID_PARAMETER;
 818
 819     if ( rec->fields[iField].type == MSIFIELD_NULL )
 820     {
 821         *sz = 0;
 822         return ERROR_INVALID_DATA;
 823     }
 824
 825     if( rec->fields[iField].type != MSIFIELD_STREAM )
 826         return ERROR_INVALID_DATATYPE;
 827
 828     stm = rec->fields[iField].u.stream;
 829     if( !stm )
 830         return ERROR_INVALID_PARAMETER;
 831
 832     /* if there's no buffer pointer, calculate the length to the end */
 833     if( !buf )
 834     {
 835         LARGE_INTEGER ofs;
 836         ULARGE_INTEGER end, cur;
 837
 838         ofs.QuadPart = cur.QuadPart = 0;
 839         end.QuadPart = 0;
 840         IStream_Seek( stm, ofs, STREAM_SEEK_SET, &cur );
 841         IStream_Seek( stm, ofs, STREAM_SEEK_END, &end );
 842         ofs.QuadPart = cur.QuadPart;
 843         IStream_Seek( stm, ofs, STREAM_SEEK_SET, &cur );
 844         *sz = end.QuadPart - cur.QuadPart;
 845
 846         return ERROR_SUCCESS;
 847     }
 848
 849     /* read the data */
 850     count = 0;
 851     r = IStream_Read( stm, buf, *sz, &count );
 852     if( FAILED( r ) )
 853     {
 854         *sz = 0;
 855         return ERROR_FUNCTION_FAILED;
 856     }
 857
 858     *sz = count;
 859
 860     return ERROR_SUCCESS;
 861 }
 862
 863 UINT WINAPI MsiRecordReadStream(MSIHANDLE handle, UINT iField, char *buf, LPDWORD sz)
 864 {
 865     MSIRECORD *rec;
 866     UINT ret;
 867
 868     TRACE("%d %d %p %p\n", handle, iField, buf, sz);
 869
 870     rec = msihandle2msiinfo( handle, MSIHANDLETYPE_RECORD );
 871     if( !rec )
 872         return ERROR_INVALID_HANDLE;
 873     msiobj_lock( &rec->hdr );
 874     ret = MSI_RecordReadStream( rec, iField, buf, sz );
 875     msiobj_unlock( &rec->hdr );
 876     msiobj_release( &rec->hdr );
 877     return ret;
 878 }
 879
 880 UINT MSI_RecordSetIStream( MSIRECORD *rec, UINT iField, IStream *stm )
 881 {
 882     TRACE("%p %d %p\n", rec, iField, stm);
 883
 884     if( iField > rec->count )
 885         return ERROR_INVALID_FIELD;
 886
 887     MSI_FreeField( &rec->fields[iField] );
 888
 889     rec->fields[iField].type = MSIFIELD_STREAM;
 890     rec->fields[iField].u.stream = stm;
 891     IStream_AddRef( stm );
 892
 893     return ERROR_SUCCESS;
 894 }
 895
 896 UINT MSI_RecordGetIStream( MSIRECORD *rec, UINT iField, IStream **pstm)
 897 {
 898     TRACE("%p %d %p\n", rec, iField, pstm);
 899
 900     if( iField > rec->count )
 901         return ERROR_INVALID_FIELD;
 902
 903     if( rec->fields[iField].type != MSIFIELD_STREAM )
 904         return ERROR_INVALID_FIELD;
 905
 906     *pstm = rec->fields[iField].u.stream;
 907     IStream_AddRef( *pstm );
 908
 909     return ERROR_SUCCESS;
 910 }
 911
 912 static UINT msi_dump_stream_to_file( IStream *stm, LPCWSTR name )
 913 {
 914     ULARGE_INTEGER size;
 915     LARGE_INTEGER pos;
 916     IStream *out;
 917     DWORD stgm;
 918     HRESULT r;
 919
 920     stgm = STGM_READWRITE | STGM_SHARE_EXCLUSIVE | STGM_FAILIFTHERE;
 921     r = SHCreateStreamOnFileW( name, stgm, &out );
 922     if( FAILED( r ) )
 923         return ERROR_FUNCTION_FAILED;
 924
 925     pos.QuadPart = 0;
 926     r = IStream_Seek( stm, pos, STREAM_SEEK_END, &size );
 927     if( FAILED( r ) )
 928         goto end;
 929
 930     pos.QuadPart = 0;
 931     r = IStream_Seek( stm, pos, STREAM_SEEK_SET, NULL );
 932     if( FAILED( r ) )
 933         goto end;
 934
 935     r = IStream_CopyTo( stm, out, size, NULL, NULL );
 936
 937 end:
 938     IStream_Release( out );
 939     if( FAILED( r ) )
 940         return ERROR_FUNCTION_FAILED;
 941     return ERROR_SUCCESS;
 942 }
 943
 944 UINT MSI_RecordStreamToFile( MSIRECORD *rec, UINT iField, LPCWSTR name )
 945 {
 946     IStream *stm = NULL;
 947     UINT r;
 948
 949     TRACE("%p %u %s\n", rec, iField, debugstr_w(name));
 950
 951     msiobj_lock( &rec->hdr );
 952
 953     r = MSI_RecordGetIStream( rec, iField, &stm );
 954     if( r == ERROR_SUCCESS )
 955     {
 956         r = msi_dump_stream_to_file( stm, name );
 957         IStream_Release( stm );
 958     }
 959
 960     msiobj_unlock( &rec->hdr );
 961
 962     return r;
 963 }
 964
 965 MSIRECORD *MSI_CloneRecord(MSIRECORD *rec)
 966 {
 967     MSIRECORD *clone;
 968     UINT r, i, count;
 969
 970     count = MSI_RecordGetFieldCount(rec);
 971     clone = MSI_CreateRecord(count);
 972     if (!clone)
 973         return NULL;
 974
 975     for (i = 0; i <= count; i++)
 976     {
 977         if (rec->fields[i].type == MSIFIELD_STREAM)
 978         {
 979             if (FAILED(IStream_Clone(rec->fields[i].u.stream,
 980                                      &clone->fields[i].u.stream)))
 981             {
 982                 msiobj_release(&clone->hdr);
 983                 return NULL;
 984             }
 985             clone->fields[i].type = MSIFIELD_STREAM;
 986         }
 987         else
 988         {
 989             r = MSI_RecordCopyField(rec, i, clone, i);
 990             if (r != ERROR_SUCCESS)
 991             {
 992                 msiobj_release(&clone->hdr);
 993                 return NULL;
 994             }
 995         }
 996     }
 997
 998     return clone;
 999 }
1000
1001 BOOL MSI_RecordsAreFieldsEqual(MSIRECORD *a, MSIRECORD *b, UINT field)
1002 {
1003     if (a->fields[field].type != b->fields[field].type)
1004         return FALSE;
1005
1006     switch (a->fields[field].type)
1007     {
1008         case MSIFIELD_NULL:
1009             break;
1010
1011         case MSIFIELD_INT:
1012             if (a->fields[field].u.iVal != b->fields[field].u.iVal)
1013                 return FALSE;
1014             break;
1015
1016         case MSIFIELD_WSTR:
1017             if (a->fields[field].len != b->fields[field].len) return FALSE;
1018             if (memcmp( a->fields[field].u.szwVal, b->fields[field].u.szwVal,
1019                         a->fields[field].len * sizeof(WCHAR) )) return FALSE;
1020             break;
1021
1022         case MSIFIELD_STREAM:
1023         default:
1024             return FALSE;
1025     }
1026     return TRUE;
1027 }
1028
1029
1030 BOOL MSI_RecordsAreEqual(MSIRECORD *a, MSIRECORD *b)
1031 {
1032     UINT i;
1033
1034     if (a->count != b->count)
1035         return FALSE;
1036
1037     for (i = 0; i <= a->count; i++)
1038     {
1039         if (!MSI_RecordsAreFieldsEqual( a, b, i ))
1040             return FALSE;
1041     }
1042
1043     return TRUE;
1044 }
1045
1046 WCHAR *msi_dup_record_field( MSIRECORD *rec, INT field )
1047 {
1048     DWORD sz = 0;
1049     WCHAR *str;
1050     UINT r;
1051
1052     if (MSI_RecordIsNull( rec, field )) return NULL;
1053
1054     r = MSI_RecordGetStringW( rec, field, NULL, &sz );
1055     if (r != ERROR_SUCCESS)
1056         return NULL;
1057
1058     sz++;
1059     str = msi_alloc( sz * sizeof(WCHAR) );
1060     if (!str) return NULL;
1061     str[0] = 0;
1062     r = MSI_RecordGetStringW( rec, field, str, &sz );
1063     if (r != ERROR_SUCCESS)
1064     {
1065         ERR("failed to get string!\n");
1066         msi_free( str );
1067         return NULL;
1068     }
1069     return str;
1070 }