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