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