dlls/advapi32/registry.c

   1 /*
   2  * Registry management
   3  *
   4  * Copyright (C) 1999 Alexandre Julliard
   5  *
   6  * Based on misc/registry.c code
   7  * Copyright (C) 1996 Marcus Meissner
   8  * Copyright (C) 1998 Matthew Becker
   9  * Copyright (C) 1999 Sylvain St-Germain
  10  *
  11  * This file is concerned about handle management and interaction with the Wine server.
  12  * Registry file I/O is in misc/registry.c.
  13  */
  14
  15 #include <stdlib.h>
  16 #include <stdio.h>
  17 #include <unistd.h>
  18
  19 #include "winbase.h"
  20 #include "winreg.h"
  21 #include "winerror.h"
  22 #include "wine/winbase16.h"
  23 #include "winversion.h"
  24 #include "file.h"
  25 #include "heap.h"
  26 #include "server.h"
  27 #include "debugtools.h"
  28
  29 DEFAULT_DEBUG_CHANNEL(reg);
  30
  31
  32 /* Ansi->Unicode conversion without string delimiters */
  33 static LPWSTR memcpyAtoW( LPWSTR dst, LPCSTR src, INT n )
  34 {
  35     LPWSTR p = dst;
  36     while (n-- > 0) *p++ = (WCHAR)*src++;
  37     return dst;
  38 }
  39
  40 /* Unicode->Ansi conversion without string delimiters */
  41 static LPSTR memcpyWtoA( LPSTR dst, LPCWSTR src, INT n )
  42 {
  43     LPSTR p = dst;
  44     while (n-- > 0) *p++ = (CHAR)*src++;
  45     return dst;
  46 }
  47
  48 /* check if value type needs string conversion (Ansi<->Unicode) */
  49 static inline int is_string( DWORD type )
  50 {
  51     return (type == REG_SZ) || (type == REG_EXPAND_SZ) || (type == REG_MULTI_SZ);
  52 }
  53
  54 /* copy key value data into a user-specified buffer
  55  *
  56  * 'len' is the total length of the data
  57  * 'count' is the size of the user-specified buffer
  58  * and is updated to reflect the length copied
  59  *
  60  * if the type is REG_SZ and data is not 0-terminated and there is enough space in the
  61  * buffer nt appends a \0
  62  */
  63 static DWORD copy_data( void *data, const void *src, DWORD len, DWORD *count, DWORD type )
  64 {
  65     DWORD ret = ERROR_SUCCESS;
  66     if (data)
  67     {
  68         if (*count < len) ret = ERROR_MORE_DATA;
  69         else memcpy( data, src, len );
  70     }
  71     if (count)
  72     {
  73         if (len && data && is_string( type ) && (len < *count) && ((WCHAR *)data)[len-1])
  74             ((WCHAR *)data)[len] = 0;
  75         *count = len;
  76     }
  77     return ret;
  78 }
  79
  80 /* same as copy_data but with optional Unicode->Ascii conversion depending on the type */
  81 static DWORD copy_data_WtoA( void *data, const void *src, DWORD len, DWORD *count, DWORD type )
  82 {
  83     DWORD ret = ERROR_SUCCESS;
  84     if (is_string( type ))
  85     {
  86         /* need to convert from Unicode */
  87         len /= sizeof(WCHAR);
  88         if (data)
  89         {
  90             if (*count < len) ret = ERROR_MORE_DATA;
  91             else if (len)
  92             {
  93                 memcpyWtoA( data, src, len );
  94                 if ((len < *count) && ((char*)data)[len-1]) ((char *)data)[len] = 0;
  95             }
  96         }
  97     }
  98     else if (data)
  99     {
 100         if (*count < len) ret = ERROR_MORE_DATA;
 101         else memcpy( data, src, len );
 102     }
 103     if (count) *count = len;
 104     return ret;
 105 }
 106
 107 /* copy a key name into the request buffer */
 108 static inline DWORD copy_nameW( LPWSTR dest, LPCWSTR name )
 109 {
 110     if (name)
 111     {
 112         if (lstrlenW(name) > MAX_PATH) return ERROR_MORE_DATA;
 113         lstrcpyW( dest, name );
 114     }
 115     else dest[0] = 0;
 116     return ERROR_SUCCESS;
 117 }
 118
 119 /* copy a key name into the request buffer */
 120 static inline DWORD copy_nameAtoW( LPWSTR dest, LPCSTR name )
 121 {
 122     if (name)
 123     {
 124         if (strlen(name) > MAX_PATH) return ERROR_MORE_DATA;
 125         lstrcpyAtoW( dest, name );
 126     }
 127     else dest[0] = 0;
 128     return ERROR_SUCCESS;
 129 }
 130
 131 /* do a server call without setting the last error code */
 132 static inline int reg_server_call( enum request req )
 133 {
 134     unsigned int res = server_call_noerr( req );
 135     if (res) res = RtlNtStatusToDosError(res);
 136     return res;
 137 }
 138
 139 /******************************************************************************
 140  *           RegCreateKeyExW   [ADVAPI32.131]
 141  *
 142  * PARAMS
 143  *    hkey       [I] Handle of an open key
 144  *    name       [I] Address of subkey name
 145  *    reserved   [I] Reserved - must be 0
 146  *    class      [I] Address of class string
 147  *    options    [I] Special options flag
 148  *    access     [I] Desired security access
 149  *    sa         [I] Address of key security structure
 150  *    retkey     [O] Address of buffer for opened handle
 151  *    dispos     [O] Receives REG_CREATED_NEW_KEY or REG_OPENED_EXISTING_KEY
 152  *
 153  * NOTES
 154  *  in case of failing retkey remains untouched
 155  */
 156 DWORD WINAPI RegCreateKeyExW( HKEY hkey, LPCWSTR name, DWORD reserved, LPWSTR class,
 157                               DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
 158                               LPHKEY retkey, LPDWORD dispos )
 159 {
 160     DWORD ret;
 161     struct create_key_request *req = get_req_buffer();
 162
 163     TRACE( "(0x%x,%s,%ld,%s,%lx,%lx,%p,%p,%p)\n", hkey, debugstr_w(name), reserved,
 164            debugstr_w(class), options, access, sa, retkey, dispos );
 165
 166     if (reserved) return ERROR_INVALID_PARAMETER;
 167     if (!(access & KEY_ALL_ACCESS) || (access & ~KEY_ALL_ACCESS)) return ERROR_ACCESS_DENIED;
 168
 169     req->parent  = hkey;
 170     req->access  = access;
 171     req->options = options;
 172     req->modif   = time(NULL);
 173     if ((ret = copy_nameW( req->name, name )) != ERROR_SUCCESS) return ret;
 174     if (req->name[0] == '\\') return ERROR_BAD_PATHNAME;
 175     lstrcpynW( req->class, class ? class : (LPWSTR)"\0\0",
 176                server_remaining(req->class) / sizeof(WCHAR) );
 177     if ((ret = reg_server_call( REQ_CREATE_KEY )) == ERROR_SUCCESS)
 178     {
 179         *retkey = req->hkey;
 180         if (dispos) *dispos = req->created ? REG_CREATED_NEW_KEY : REG_OPENED_EXISTING_KEY;
 181     }
 182     return ret;
 183 }
 184
 185
 186 /******************************************************************************
 187  *           RegCreateKeyExA   [ADVAPI32.130]
 188  */
 189 DWORD WINAPI RegCreateKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, LPSTR class,
 190                               DWORD options, REGSAM access, SECURITY_ATTRIBUTES *sa,
 191                               LPHKEY retkey, LPDWORD dispos )
 192 {
 193     DWORD ret;
 194     struct create_key_request *req = get_req_buffer();
 195
 196     TRACE( "(0x%x,%s,%ld,%s,%lx,%lx,%p,%p,%p)\n", hkey, debugstr_a(name), reserved,
 197            debugstr_a(class), options, access, sa, retkey, dispos );
 198
 199     if (reserved) return ERROR_INVALID_PARAMETER;
 200     if (!(access & KEY_ALL_ACCESS) || (access & ~KEY_ALL_ACCESS)) return ERROR_ACCESS_DENIED;
 201
 202     req->parent  = hkey;
 203     req->access  = access;
 204     req->options = options;
 205     req->modif   = time(NULL);
 206     if ((ret = copy_nameAtoW( req->name, name )) != ERROR_SUCCESS) return ret;
 207     if (req->name[0] == '\\') return ERROR_BAD_PATHNAME;
 208     lstrcpynAtoW( req->class, class ? class : "",
 209                   server_remaining(req->class) / sizeof(WCHAR) );
 210     if ((ret = reg_server_call( REQ_CREATE_KEY )) == ERROR_SUCCESS)
 211     {
 212         *retkey = req->hkey;
 213         if (dispos) *dispos = req->created ? REG_CREATED_NEW_KEY : REG_OPENED_EXISTING_KEY;
 214     }
 215     return ret;
 216 }
 217
 218
 219 /******************************************************************************
 220  *           RegCreateKeyW   [ADVAPI32.132]
 221  */
 222 DWORD WINAPI RegCreateKeyW( HKEY hkey, LPCWSTR name, LPHKEY retkey )
 223 {
 224     /* FIXME: previous implementation converted ERROR_INVALID_HANDLE to ERROR_BADKEY, */
 225     /* but at least my version of NT (4.0 SP5) doesn't do this.  -- AJ */
 226     return RegCreateKeyExW( hkey, name, 0, NULL, REG_OPTION_NON_VOLATILE,
 227                             KEY_ALL_ACCESS, NULL, retkey, NULL );
 228 }
 229
 230
 231 /******************************************************************************
 232  *           RegCreateKeyA   [ADVAPI32.129]
 233  */
 234 DWORD WINAPI RegCreateKeyA( HKEY hkey, LPCSTR name, LPHKEY retkey )
 235 {
 236     return RegCreateKeyExA( hkey, name, 0, NULL, REG_OPTION_NON_VOLATILE,
 237                             KEY_ALL_ACCESS, NULL, retkey, NULL );
 238 }
 239
 240
 241
 242 /******************************************************************************
 243  *           RegOpenKeyExW   [ADVAPI32.150]
 244  *
 245  * Opens the specified key
 246  *
 247  * Unlike RegCreateKeyEx, this does not create the key if it does not exist.
 248  *
 249  * PARAMS
 250  *    hkey       [I] Handle of open key
 251  *    name       [I] Name of subkey to open
 252  *    reserved   [I] Reserved - must be zero
 253  *    access     [I] Security access mask
 254  *    retkey     [O] Handle to open key
 255  *
 256  * RETURNS
 257  *    Success: ERROR_SUCCESS
 258  *    Failure: Error code
 259  *
 260  * NOTES
 261  *  in case of failing is retkey = 0
 262  */
 263 DWORD WINAPI RegOpenKeyExW( HKEY hkey, LPCWSTR name, DWORD reserved, REGSAM access, LPHKEY retkey )
 264 {
 265     DWORD ret;
 266     struct open_key_request *req = get_req_buffer();
 267
 268     TRACE( "(0x%x,%s,%ld,%lx,%p)\n", hkey, debugstr_w(name), reserved, access, retkey );
 269
 270     if (!retkey) return ERROR_INVALID_PARAMETER;
 271     *retkey = 0;
 272
 273     req->parent = hkey;
 274     req->access = access;
 275     if ((ret = copy_nameW( req->name, name )) != ERROR_SUCCESS) return ret;
 276     if (req->name[0] == '\\') return ERROR_BAD_PATHNAME;
 277     if ((ret = reg_server_call( REQ_OPEN_KEY )) == ERROR_SUCCESS) *retkey = req->hkey;
 278     return ret;
 279 }
 280
 281
 282 /******************************************************************************
 283  *           RegOpenKeyExA   [ADVAPI32.149]
 284  */
 285 DWORD WINAPI RegOpenKeyExA( HKEY hkey, LPCSTR name, DWORD reserved, REGSAM access, LPHKEY retkey )
 286 {
 287     DWORD ret;
 288     struct open_key_request *req = get_req_buffer();
 289
 290     TRACE( "(0x%x,%s,%ld,%lx,%p)\n", hkey, debugstr_a(name), reserved, access, retkey );
 291
 292     if (!retkey) return ERROR_INVALID_PARAMETER;
 293     *retkey = 0;
 294
 295     req->parent = hkey;
 296     req->access = access;
 297     if ((ret = copy_nameAtoW( req->name, name )) != ERROR_SUCCESS) return ret;
 298     if (req->name[0] == '\\') return ERROR_BAD_PATHNAME;
 299     if ((ret = reg_server_call( REQ_OPEN_KEY )) == ERROR_SUCCESS) *retkey = req->hkey;
 300     return ret;
 301 }
 302
 303
 304 /******************************************************************************
 305  *           RegOpenKeyW   [ADVAPI32.151]
 306  *
 307  * PARAMS
 308  *    hkey    [I] Handle of open key
 309  *    name    [I] Address of name of subkey to open
 310  *    retkey  [O] Handle to open key
 311  *
 312  * RETURNS
 313  *    Success: ERROR_SUCCESS
 314  *    Failure: Error code
 315  *
 316  * NOTES
 317  *  in case of failing is retkey = 0
 318  */
 319 DWORD WINAPI RegOpenKeyW( HKEY hkey, LPCWSTR name, LPHKEY retkey )
 320 {
 321     return RegOpenKeyExW( hkey, name, 0, KEY_ALL_ACCESS, retkey );
 322 }
 323
 324
 325 /******************************************************************************
 326  *           RegOpenKeyA   [ADVAPI32.148]
 327  */
 328 DWORD WINAPI RegOpenKeyA( HKEY hkey, LPCSTR name, LPHKEY retkey )
 329 {
 330     return RegOpenKeyExA( hkey, name, 0, KEY_ALL_ACCESS, retkey );
 331 }
 332
 333
 334
 335 /******************************************************************************
 336  *           RegEnumKeyExW   [ADVAPI32.139]
 337  *
 338  * PARAMS
 339  *    hkey         [I] Handle to key to enumerate
 340  *    index        [I] Index of subkey to enumerate
 341  *    name         [O] Buffer for subkey name
 342  *    name_len     [O] Size of subkey buffer
 343  *    reserved     [I] Reserved
 344  *    class        [O] Buffer for class string
 345  *    class_len    [O] Size of class buffer
 346  *    ft           [O] Time key last written to
 347  */
 348 DWORD WINAPI RegEnumKeyExW( HKEY hkey, DWORD index, LPWSTR name, LPDWORD name_len,
 349                             LPDWORD reserved, LPWSTR class, LPDWORD class_len, FILETIME *ft )
 350 {
 351     DWORD ret, len, cls_len;
 352     struct enum_key_request *req = get_req_buffer();
 353
 354     TRACE( "(0x%x,%ld,%p,%p(%ld),%p,%p,%p,%p)\n", hkey, index, name, name_len,
 355            name_len ? *name_len : -1, reserved, class, class_len, ft );
 356
 357     if (reserved) return ERROR_INVALID_PARAMETER;
 358
 359     req->hkey = hkey;
 360     req->index = index;
 361     if ((ret = reg_server_call( REQ_ENUM_KEY )) != ERROR_SUCCESS) return ret;
 362
 363     len = lstrlenW( req->name ) + 1;
 364     cls_len = lstrlenW( req->class ) + 1;
 365     if (len > *name_len) return ERROR_MORE_DATA;
 366     if (class_len && (cls_len > *class_len)) return ERROR_MORE_DATA;
 367
 368     memcpy( name, req->name, len * sizeof(WCHAR) );
 369     *name_len = len - 1;
 370     if (class_len)
 371     {
 372         if (class) memcpy( class, req->class, cls_len * sizeof(WCHAR) );
 373         *class_len = cls_len - 1;
 374     }
 375     if (ft) DOSFS_UnixTimeToFileTime( req->modif, ft, 0 );
 376     return ERROR_SUCCESS;
 377 }
 378
 379
 380 /******************************************************************************
 381  *           RegEnumKeyExA   [ADVAPI32.138]
 382  */
 383 DWORD WINAPI RegEnumKeyExA( HKEY hkey, DWORD index, LPSTR name, LPDWORD name_len,
 384                             LPDWORD reserved, LPSTR class, LPDWORD class_len, FILETIME *ft )
 385 {
 386     DWORD ret, len, cls_len;
 387     struct enum_key_request *req = get_req_buffer();
 388
 389     TRACE( "(0x%x,%ld,%p,%p(%ld),%p,%p,%p,%p)\n", hkey, index, name, name_len,
 390            name_len ? *name_len : -1, reserved, class, class_len, ft );
 391
 392     if (reserved) return ERROR_INVALID_PARAMETER;
 393
 394     req->hkey = hkey;
 395     req->index = index;
 396     if ((ret = reg_server_call( REQ_ENUM_KEY )) != ERROR_SUCCESS) return ret;
 397
 398     len = lstrlenW( req->name ) + 1;
 399     cls_len = lstrlenW( req->class ) + 1;
 400     if (len > *name_len) return ERROR_MORE_DATA;
 401     if (class_len && (cls_len > *class_len)) return ERROR_MORE_DATA;
 402
 403     memcpyWtoA( name, req->name, len );
 404     *name_len = len - 1;
 405     if (class_len)
 406     {
 407         if (class) memcpyWtoA( class, req->class, cls_len );
 408         *class_len = cls_len - 1;
 409     }
 410     if (ft) DOSFS_UnixTimeToFileTime( req->modif, ft, 0 );
 411     return ERROR_SUCCESS;
 412 }
 413
 414
 415 /******************************************************************************
 416  *           RegEnumKeyW   [ADVAPI32.140]
 417  */
 418 DWORD WINAPI RegEnumKeyW( HKEY hkey, DWORD index, LPWSTR name, DWORD name_len )
 419 {
 420     return RegEnumKeyExW( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
 421 }
 422
 423
 424 /******************************************************************************
 425  *           RegEnumKeyA   [ADVAPI32.137]
 426  */
 427 DWORD WINAPI RegEnumKeyA( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
 428 {
 429     return RegEnumKeyExA( hkey, index, name, &name_len, NULL, NULL, NULL, NULL );
 430 }
 431
 432
 433 /******************************************************************************
 434  *           RegQueryInfoKeyW   [ADVAPI32.153]
 435  *
 436  * PARAMS
 437  *    hkey       [I] Handle to key to query
 438  *    class      [O] Buffer for class string
 439  *    class_len  [O] Size of class string buffer
 440  *    reserved   [I] Reserved
 441  *    subkeys    [O] Buffer for number of subkeys
 442  *    max_subkey [O] Buffer for longest subkey name length
 443  *    max_class  [O] Buffer for longest class string length
 444  *    values     [O] Buffer for number of value entries
 445  *    max_value  [O] Buffer for longest value name length
 446  *    max_data   [O] Buffer for longest value data length
 447  *    security   [O] Buffer for security descriptor length
 448  *    modif      [O] Modification time
 449  *
 450  * - win95 allows class to be valid and class_len to be NULL
 451  * - winnt returns ERROR_INVALID_PARAMETER if class is valid and class_len is NULL
 452  * - both allow class to be NULL and class_len to be NULL
 453  * (it's hard to test validity, so test !NULL instead)
 454  */
 455 DWORD WINAPI RegQueryInfoKeyW( HKEY hkey, LPWSTR class, LPDWORD class_len, LPDWORD reserved,
 456                                LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
 457                                LPDWORD values, LPDWORD max_value, LPDWORD max_data,
 458                                LPDWORD security, FILETIME *modif )
 459 {
 460     DWORD ret;
 461     struct query_key_info_request *req = get_req_buffer();
 462
 463
 464     TRACE( "(0x%x,%p,%ld,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
 465            reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
 466
 467     if (class && !class_len && (VERSION_GetVersion() == NT40))
 468         return ERROR_INVALID_PARAMETER;
 469
 470     req->hkey = hkey;
 471     if ((ret = reg_server_call( REQ_QUERY_KEY_INFO )) != ERROR_SUCCESS) return ret;
 472
 473     if (class)
 474     {
 475         if (class_len && (lstrlenW(req->class) + 1 > *class_len))
 476         {
 477             *class_len = lstrlenW(req->class);
 478             return ERROR_MORE_DATA;
 479         }
 480         lstrcpyW( class, req->class );
 481     }
 482     if (class_len) *class_len = lstrlenW( req->class );
 483     if (subkeys) *subkeys = req->subkeys;
 484     if (max_subkey) *max_subkey = req->max_subkey;
 485     if (max_class) *max_class = req->max_class;
 486     if (values) *values = req->values;
 487     if (max_value) *max_value = req->max_value;
 488     if (max_data) *max_data = req->max_data;
 489     if (modif) DOSFS_UnixTimeToFileTime( req->modif, modif, 0 );
 490     return ERROR_SUCCESS;
 491 }
 492
 493
 494 /******************************************************************************
 495  *           RegQueryInfoKeyA   [ADVAPI32.152]
 496  */
 497 DWORD WINAPI RegQueryInfoKeyA( HKEY hkey, LPSTR class, LPDWORD class_len, LPDWORD reserved,
 498                                LPDWORD subkeys, LPDWORD max_subkey, LPDWORD max_class,
 499                                LPDWORD values, LPDWORD max_value, LPDWORD max_data,
 500                                LPDWORD security, FILETIME *modif )
 501 {
 502     DWORD ret;
 503     struct query_key_info_request *req = get_req_buffer();
 504
 505
 506     TRACE( "(0x%x,%p,%ld,%p,%p,%p,%p,%p,%p,%p,%p)\n", hkey, class, class_len ? *class_len : 0,
 507            reserved, subkeys, max_subkey, values, max_value, max_data, security, modif );
 508
 509     if (class && !class_len && (VERSION_GetVersion() == NT40))
 510         return ERROR_INVALID_PARAMETER;
 511
 512     req->hkey = hkey;
 513     if ((ret = reg_server_call( REQ_QUERY_KEY_INFO )) != ERROR_SUCCESS) return ret;
 514
 515     if (class)
 516     {
 517         if (class_len && (lstrlenW(req->class) + 1 > *class_len))
 518         {
 519             *class_len = lstrlenW(req->class);
 520             return ERROR_MORE_DATA;
 521         }
 522         lstrcpyWtoA( class, req->class );
 523     }
 524     if (class_len) *class_len = lstrlenW( req->class );
 525     if (subkeys) *subkeys = req->subkeys;
 526     if (max_subkey) *max_subkey = req->max_subkey;
 527     if (max_class) *max_class = req->max_class;
 528     if (values) *values = req->values;
 529     if (max_value) *max_value = req->max_value;
 530     if (max_data) *max_data = req->max_data;
 531     if (modif) DOSFS_UnixTimeToFileTime( req->modif, modif, 0 );
 532     return ERROR_SUCCESS;
 533 }
 534
 535
 536 /******************************************************************************
 537  *           RegCloseKey   [ADVAPI32.126]
 538  *
 539  * Releases the handle of the specified key
 540  *
 541  * PARAMS
 542  *    hkey [I] Handle of key to close
 543  *
 544  * RETURNS
 545  *    Success: ERROR_SUCCESS
 546  *    Failure: Error code
 547  */
 548 DWORD WINAPI RegCloseKey( HKEY hkey )
 549 {
 550     struct close_key_request *req = get_req_buffer();
 551     TRACE( "(0x%x)\n", hkey );
 552     req->hkey = hkey;
 553     return reg_server_call( REQ_CLOSE_KEY );
 554 }
 555
 556
 557 /******************************************************************************
 558  *           RegDeleteKeyW   [ADVAPI32.134]
 559  *
 560  * PARAMS
 561  *    hkey   [I] Handle to open key
 562  *    name   [I] Name of subkey to delete
 563  *
 564  * RETURNS
 565  *    Success: ERROR_SUCCESS
 566  *    Failure: Error code
 567  */
 568 DWORD WINAPI RegDeleteKeyW( HKEY hkey, LPCWSTR name )
 569 {
 570     DWORD ret;
 571     struct delete_key_request *req = get_req_buffer();
 572
 573     TRACE( "(0x%x,%s)\n", hkey, debugstr_w(name) );
 574
 575     req->hkey = hkey;
 576     if ((ret = copy_nameW( req->name, name )) != ERROR_SUCCESS) return ret;
 577     if (req->name[0] == '\\') return ERROR_BAD_PATHNAME;
 578     return reg_server_call( REQ_DELETE_KEY );
 579 }
 580
 581
 582 /******************************************************************************
 583  *           RegDeleteKeyA   [ADVAPI32.133]
 584  */
 585 DWORD WINAPI RegDeleteKeyA( HKEY hkey, LPCSTR name )
 586 {
 587     DWORD ret;
 588     struct delete_key_request *req = get_req_buffer();
 589
 590     TRACE( "(0x%x,%s)\n", hkey, debugstr_a(name) );
 591
 592     req->hkey = hkey;
 593     if ((ret = copy_nameAtoW( req->name, name )) != ERROR_SUCCESS) return ret;
 594     if (req->name[0] == '\\') return ERROR_BAD_PATHNAME;
 595     return reg_server_call( REQ_DELETE_KEY );
 596 }
 597
 598
 599
 600 /******************************************************************************
 601  *           RegSetValueExW   [ADVAPI32.170]
 602  *
 603  * Sets the data and type of a value under a register key
 604  *
 605  * PARAMS
 606  *    hkey       [I] Handle of key to set value for
 607  *    name       [I] Name of value to set
 608  *    reserved   [I] Reserved - must be zero
 609  *    type       [I] Flag for value type
 610  *    data       [I] Address of value data
 611  *    count      [I] Size of value data
 612  *
 613  * RETURNS
 614  *    Success: ERROR_SUCCESS
 615  *    Failure: Error code
 616  *
 617  * NOTES
 618  *   win95 does not care about count for REG_SZ and finds out the len by itself (js)
 619  *   NT does definitely care (aj)
 620  */
 621 DWORD WINAPI RegSetValueExW( HKEY hkey, LPCWSTR name, DWORD reserved,
 622                              DWORD type, CONST BYTE *data, DWORD count )
 623 {
 624     DWORD ret;
 625     struct set_key_value_request *req = get_req_buffer();
 626
 627     TRACE( "(0x%x,%s,%ld,%ld,%p,%ld)\n", hkey, debugstr_w(name), reserved, type, data, count );
 628
 629     if (reserved) return ERROR_INVALID_PARAMETER;
 630
 631     if (count && type == REG_SZ)
 632     {
 633         LPCWSTR str = (LPCWSTR)data;
 634         /* if user forgot to count terminating null, add it (yes NT does this) */
 635         if (str[count / sizeof(WCHAR) - 1] && !str[count / sizeof(WCHAR)])
 636             count += sizeof(WCHAR);
 637     }
 638     if (count >= server_remaining( req->data )) return ERROR_OUTOFMEMORY;  /* FIXME */
 639     req->hkey = hkey;
 640     req->type = type;
 641     req->len = count;
 642     if ((ret = copy_nameW( req->name, name )) != ERROR_SUCCESS) return ret;
 643     memcpy( req->data, data, count );
 644     return reg_server_call( REQ_SET_KEY_VALUE );
 645 }
 646
 647
 648 /******************************************************************************
 649  *           RegSetValueExA   [ADVAPI32.169]
 650  */
 651 DWORD WINAPI RegSetValueExA( HKEY hkey, LPCSTR name, DWORD reserved, DWORD type,
 652                              CONST BYTE *data, DWORD count )
 653 {
 654     DWORD ret;
 655     struct set_key_value_request *req = get_req_buffer();
 656
 657     TRACE( "(0x%x,%s,%ld,%ld,%p,%ld)\n", hkey, debugstr_a(name), reserved, type, data, count );
 658
 659     if (reserved) return ERROR_INVALID_PARAMETER;
 660
 661     if (count && type == REG_SZ)
 662     {
 663         /* if user forgot to count terminating null, add it (yes NT does this) */
 664         if (data[count-1] && !data[count]) count++;
 665     }
 666     if (is_string( type ))
 667     {
 668         /* need to convert to Unicode */
 669         count *= sizeof(WCHAR);
 670         if (count >= server_remaining( req->data )) return ERROR_OUTOFMEMORY;  /* FIXME */
 671         memcpyAtoW( (LPWSTR)req->data, data, count / sizeof(WCHAR) );
 672     }
 673     else
 674     {
 675         if (count >= server_remaining( req->data )) return ERROR_OUTOFMEMORY;  /* FIXME */
 676         memcpy( req->data, data, count );
 677     }
 678     req->hkey = hkey;
 679     req->type = type;
 680     req->len = count;
 681     if ((ret = copy_nameAtoW( req->name, name )) != ERROR_SUCCESS) return ret;
 682     return reg_server_call( REQ_SET_KEY_VALUE );
 683 }
 684
 685
 686 /******************************************************************************
 687  *           RegSetValueW   [ADVAPI32.171]
 688  */
 689 DWORD WINAPI RegSetValueW( HKEY hkey, LPCWSTR name, DWORD type, LPCWSTR data, DWORD count )
 690 {
 691     HKEY subkey = hkey;
 692     DWORD ret;
 693
 694     TRACE("(0x%x,%s,%ld,%s,%ld)\n", hkey, debugstr_w(name), type, debugstr_w(data), count );
 695
 696     if (type != REG_SZ) return ERROR_INVALID_PARAMETER;
 697
 698     if (name && name[0])  /* need to create the subkey */
 699     {
 700         if ((ret = RegCreateKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
 701     }
 702
 703     ret = RegSetValueExW( subkey, NULL, 0, REG_SZ, (LPBYTE)data,
 704                           (lstrlenW( data ) + 1) * sizeof(WCHAR) );
 705     if (subkey != hkey) RegCloseKey( subkey );
 706     return ret;
 707 }
 708
 709
 710 /******************************************************************************
 711  *           RegSetValueA   [ADVAPI32.168]
 712  */
 713 DWORD WINAPI RegSetValueA( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
 714 {
 715     HKEY subkey = hkey;
 716     DWORD ret;
 717
 718     TRACE("(0x%x,%s,%ld,%s,%ld)\n", hkey, debugstr_a(name), type, debugstr_a(data), count );
 719
 720     if (type != REG_SZ) return ERROR_INVALID_PARAMETER;
 721
 722     if (name && name[0])  /* need to create the subkey */
 723     {
 724         if ((ret = RegCreateKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
 725     }
 726     ret = RegSetValueExA( subkey, NULL, 0, REG_SZ, (LPBYTE)data, strlen(data)+1 );
 727     if (subkey != hkey) RegCloseKey( subkey );
 728     return ret;
 729 }
 730
 731
 732
 733 /******************************************************************************
 734  *           RegQueryValueExW   [ADVAPI32.158]
 735  *
 736  * Retrieves type and data for a specified name associated with an open key
 737  *
 738  * PARAMS
 739  *    hkey      [I]   Handle of key to query
 740  *    name      [I]   Name of value to query
 741  *    reserved  [I]   Reserved - must be NULL
 742  *    type      [O]   Address of buffer for value type.  If NULL, the type
 743  *                        is not required.
 744  *    data      [O]   Address of data buffer.  If NULL, the actual data is
 745  *                        not required.
 746  *    count     [I/O] Address of data buffer size
 747  *
 748  * RETURNS
 749  *    ERROR_SUCCESS:   Success
 750  *    ERROR_MORE_DATA: !!! if the specified buffer is not big enough to hold the data
 751  *                     buffer is left untouched. The MS-documentation is wrong (js) !!!
 752  */
 753 DWORD WINAPI RegQueryValueExW( HKEY hkey, LPCWSTR name, LPDWORD reserved, LPDWORD type,
 754                                LPBYTE data, LPDWORD count )
 755 {
 756     DWORD ret;
 757     struct get_key_value_request *req = get_req_buffer();
 758
 759     TRACE("(0x%x,%s,%p,%p,%p,%p=%ld)\n",
 760           hkey, debugstr_w(name), reserved, type, data, count, count ? *count : 0 );
 761
 762     if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
 763
 764     req->hkey = hkey;
 765     if ((ret = copy_nameW( req->name, name )) != ERROR_SUCCESS) return ret;
 766     if ((ret = reg_server_call( REQ_GET_KEY_VALUE )) == ERROR_SUCCESS)
 767     {
 768         if (type) *type = req->type;
 769         ret = copy_data( data, req->data, req->len, count, req->type );
 770     }
 771     return ret;
 772 }
 773
 774
 775 /******************************************************************************
 776  *           RegQueryValueExA   [ADVAPI32.157]
 777  *
 778  * NOTES:
 779  * the documentation is wrong: if the buffer is to small it remains untouched
 780  */
 781 DWORD WINAPI RegQueryValueExA( HKEY hkey, LPCSTR name, LPDWORD reserved, LPDWORD type,
 782                                LPBYTE data, LPDWORD count )
 783 {
 784     DWORD ret;
 785     struct get_key_value_request *req = get_req_buffer();
 786
 787     TRACE("(0x%x,%s,%p,%p,%p,%p=%ld)\n",
 788           hkey, debugstr_a(name), reserved, type, data, count, count ? *count : 0 );
 789
 790     if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
 791
 792     req->hkey = hkey;
 793     if ((ret = copy_nameAtoW( req->name, name )) != ERROR_SUCCESS) return ret;
 794     if ((ret = reg_server_call( REQ_GET_KEY_VALUE )) == ERROR_SUCCESS)
 795     {
 796         if (type) *type = req->type;
 797         ret = copy_data_WtoA( data, req->data, req->len, count, req->type );
 798     }
 799     return ret;
 800 }
 801
 802
 803 /******************************************************************************
 804  *           RegQueryValueW   [ADVAPI32.159]
 805  */
 806 DWORD WINAPI RegQueryValueW( HKEY hkey, LPCWSTR name, LPWSTR data, LPLONG count )
 807 {
 808     DWORD ret;
 809     HKEY subkey = hkey;
 810
 811     TRACE("(%x,%s,%p,%ld)\n", hkey, debugstr_w(name), data, count ? *count : 0 );
 812
 813     if (name && name[0])
 814     {
 815         if ((ret = RegOpenKeyW( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
 816     }
 817     ret = RegQueryValueExW( subkey, NULL, NULL, NULL, (LPBYTE)data, count );
 818     if (subkey != hkey) RegCloseKey( subkey );
 819     if (ret == ERROR_FILE_NOT_FOUND)
 820     {
 821         /* return empty string if default value not found */
 822         if (data) *data = 0;
 823         if (count) *count = 1;
 824         ret = ERROR_SUCCESS;
 825     }
 826     return ret;
 827 }
 828
 829
 830 /******************************************************************************
 831  *           RegQueryValueA   [ADVAPI32.156]
 832  */
 833 DWORD WINAPI RegQueryValueA( HKEY hkey, LPCSTR name, LPSTR data, LPLONG count )
 834 {
 835     DWORD ret;
 836     HKEY subkey = hkey;
 837
 838     TRACE("(%x,%s,%p,%ld)\n", hkey, debugstr_a(name), data, count ? *count : 0 );
 839
 840     if (name && name[0])
 841     {
 842         if ((ret = RegOpenKeyA( hkey, name, &subkey )) != ERROR_SUCCESS) return ret;
 843     }
 844     ret = RegQueryValueExA( subkey, NULL, NULL, NULL, (LPBYTE)data, count );
 845     if (subkey != hkey) RegCloseKey( subkey );
 846     if (ret == ERROR_FILE_NOT_FOUND)
 847     {
 848         /* return empty string if default value not found */
 849         if (data) *data = 0;
 850         if (count) *count = 1;
 851         ret = ERROR_SUCCESS;
 852     }
 853     return ret;
 854 }
 855
 856
 857 /******************************************************************************
 858  *           RegEnumValueW   [ADVAPI32.142]
 859  *
 860  * PARAMS
 861  *    hkey       [I] Handle to key to query
 862  *    index      [I] Index of value to query
 863  *    value      [O] Value string
 864  *    val_count  [I/O] Size of value buffer (in wchars)
 865  *    reserved   [I] Reserved
 866  *    type       [O] Type code
 867  *    data       [O] Value data
 868  *    count      [I/O] Size of data buffer (in bytes)
 869  */
 870
 871 DWORD WINAPI RegEnumValueW( HKEY hkey, DWORD index, LPWSTR value, LPDWORD val_count,
 872                             LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
 873 {
 874     DWORD ret, len;
 875     struct enum_key_value_request *req = get_req_buffer();
 876
 877     TRACE("(%x,%ld,%p,%p,%p,%p,%p,%p)\n",
 878           hkey, index, value, val_count, reserved, type, data, count );
 879
 880     /* NT only checks count, not val_count */
 881     if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
 882
 883     req->hkey = hkey;
 884     req->index = index;
 885     if ((ret = reg_server_call( REQ_ENUM_KEY_VALUE )) != ERROR_SUCCESS) return ret;
 886
 887     len = lstrlenW( req->name ) + 1;
 888     if (len > *val_count) return ERROR_MORE_DATA;
 889     memcpy( value, req->name, len * sizeof(WCHAR) );
 890     *val_count = len - 1;
 891
 892     if (type) *type = req->type;
 893     return copy_data( data, req->data, req->len, count, req->type );
 894 }
 895
 896
 897 /******************************************************************************
 898  *           RegEnumValueA   [ADVAPI32.141]
 899  */
 900 DWORD WINAPI RegEnumValueA( HKEY hkey, DWORD index, LPSTR value, LPDWORD val_count,
 901                             LPDWORD reserved, LPDWORD type, LPBYTE data, LPDWORD count )
 902 {
 903     DWORD ret, len;
 904     struct enum_key_value_request *req = get_req_buffer();
 905
 906     TRACE("(%x,%ld,%p,%p,%p,%p,%p,%p)\n",
 907           hkey, index, value, val_count, reserved, type, data, count );
 908
 909     /* NT only checks count, not val_count */
 910     if ((data && !count) || reserved) return ERROR_INVALID_PARAMETER;
 911
 912     req->hkey = hkey;
 913     req->index = index;
 914     if ((ret = reg_server_call( REQ_ENUM_KEY_VALUE )) != ERROR_SUCCESS) return ret;
 915
 916     len = lstrlenW( req->name ) + 1;
 917     if (len > *val_count) return ERROR_MORE_DATA;
 918     memcpyWtoA( value, req->name, len );
 919     *val_count = len - 1;
 920
 921     if (type) *type = req->type;
 922     return copy_data_WtoA( data, req->data, req->len, count, req->type );
 923 }
 924
 925
 926
 927 /******************************************************************************
 928  *           RegDeleteValueW   [ADVAPI32.136]
 929  *
 930  * PARAMS
 931  *    hkey   [I] handle to key
 932  *    name   [I] name of value to delete
 933  *
 934  * RETURNS
 935  *    error status
 936  */
 937 DWORD WINAPI RegDeleteValueW( HKEY hkey, LPCWSTR name )
 938 {
 939     DWORD ret;
 940     struct delete_key_value_request *req = get_req_buffer();
 941
 942     TRACE( "(0x%x,%s)\n", hkey, debugstr_w(name) );
 943
 944     req->hkey = hkey;
 945     if ((ret = copy_nameW( req->name, name )) != ERROR_SUCCESS) return ret;
 946     return reg_server_call( REQ_DELETE_KEY_VALUE );
 947 }
 948
 949
 950 /******************************************************************************
 951  *           RegDeleteValueA   [ADVAPI32.135]
 952  */
 953 DWORD WINAPI RegDeleteValueA( HKEY hkey, LPCSTR name )
 954 {
 955     DWORD ret;
 956     struct delete_key_value_request *req = get_req_buffer();
 957
 958     TRACE( "(0x%x,%s)\n", hkey, debugstr_a(name) );
 959
 960     req->hkey = hkey;
 961     if ((ret = copy_nameAtoW( req->name, name )) != ERROR_SUCCESS) return ret;
 962     return reg_server_call( REQ_DELETE_KEY_VALUE );
 963 }
 964
 965
 966 /******************************************************************************
 967  *           RegLoadKeyW   [ADVAPI32.185]
 968  *
 969  * PARAMS
 970  *    hkey      [I] Handle of open key
 971  *    subkey    [I] Address of name of subkey
 972  *    filename  [I] Address of filename for registry information
 973  */
 974 LONG WINAPI RegLoadKeyW( HKEY hkey, LPCWSTR subkey, LPCWSTR filename )
 975 {
 976     struct load_registry_request *req = get_req_buffer();
 977     HANDLE file;
 978     DWORD ret, err = GetLastError();
 979
 980     TRACE( "(%x,%s,%s)\n", hkey, debugstr_w(subkey), debugstr_w(filename) );
 981
 982     if (!filename || !*filename) return ERROR_INVALID_PARAMETER;
 983     if (!subkey || !*subkey) return ERROR_INVALID_PARAMETER;
 984
 985     if ((file = CreateFileW( filename, GENERIC_READ, 0, NULL, OPEN_EXISTING,
 986                              FILE_ATTRIBUTE_NORMAL, -1 )) == INVALID_HANDLE_VALUE)
 987     {
 988         ret = GetLastError();
 989         goto done;
 990     }
 991     req->hkey  = hkey;
 992     req->file  = file;
 993     if ((ret = copy_nameW( req->name, subkey )) != ERROR_SUCCESS) goto done;
 994     ret = reg_server_call( REQ_LOAD_REGISTRY );
 995     CloseHandle( file );
 996
 997  done:
 998     SetLastError( err );  /* restore the last error code */
 999     return ret;
1000 }
1001
1002
1003 /******************************************************************************
1004  *           RegLoadKeyA   [ADVAPI32.184]
1005  */
1006 LONG WINAPI RegLoadKeyA( HKEY hkey, LPCSTR subkey, LPCSTR filename )
1007 {
1008     struct load_registry_request *req = get_req_buffer();
1009     HANDLE file;
1010     DWORD ret, err = GetLastError();
1011
1012     TRACE( "(%x,%s,%s)\n", hkey, debugstr_a(subkey), debugstr_a(filename) );
1013
1014     if (!filename || !*filename) return ERROR_INVALID_PARAMETER;
1015     if (!subkey || !*subkey) return ERROR_INVALID_PARAMETER;
1016
1017     if ((file = CreateFileA( filename, GENERIC_READ, 0, NULL, OPEN_EXISTING,
1018                              FILE_ATTRIBUTE_NORMAL, -1 )) == INVALID_HANDLE_VALUE)
1019     {
1020         ret = GetLastError();
1021         goto done;
1022     }
1023     req->hkey  = hkey;
1024     req->file  = file;
1025     if ((ret = copy_nameAtoW( req->name, subkey )) != ERROR_SUCCESS) goto done;
1026     ret = reg_server_call( REQ_LOAD_REGISTRY );
1027     CloseHandle( file );
1028
1029  done:
1030     SetLastError( err );  /* restore the last error code */
1031     return ret;
1032 }
1033
1034
1035 /******************************************************************************
1036  *           RegSaveKeyA   [ADVAPI32.165]
1037  *
1038  * PARAMS
1039  *    hkey   [I] Handle of key where save begins
1040  *    lpFile [I] Address of filename to save to
1041  *    sa     [I] Address of security structure
1042  */
1043 LONG WINAPI RegSaveKeyA( HKEY hkey, LPCSTR file, LPSECURITY_ATTRIBUTES sa )
1044 {
1045     struct save_registry_request *req = get_req_buffer();
1046     char buffer[1024];
1047     int count = 0;
1048     LPSTR name;
1049     DWORD ret, err;
1050     HFILE handle;
1051
1052     TRACE( "(%x,%s,%p)\n", hkey, debugstr_a(file), sa );
1053
1054     if (!file || !*file) return ERROR_INVALID_PARAMETER;
1055
1056     err = GetLastError();
1057     GetFullPathNameA( file, sizeof(buffer), buffer, &name );
1058     for (;;)
1059     {
1060         sprintf( name, "reg%04x.tmp", count++ );
1061         handle = CreateFileA( buffer, GENERIC_WRITE, 0, NULL,
1062                             CREATE_NEW, FILE_ATTRIBUTE_NORMAL, -1 );
1063         if (handle != INVALID_HANDLE_VALUE) break;
1064         if ((ret = GetLastError()) != ERROR_ALREADY_EXISTS) goto done;
1065     }
1066
1067     req->hkey = hkey;
1068     req->file = handle;
1069     ret = reg_server_call( REQ_SAVE_REGISTRY );
1070     CloseHandle( handle );
1071     if (!ret)
1072     {
1073         if (!MoveFileExA( buffer, file, MOVEFILE_REPLACE_EXISTING ))
1074         {
1075             ERR( "Failed to move %s to %s\n", buffer, file );
1076             ret = GetLastError();
1077         }
1078     }
1079     if (ret) DeleteFileA( buffer );
1080
1081 done:
1082     SetLastError( err );  /* restore last error code */
1083     return ret;
1084 }
1085
1086
1087 /******************************************************************************
1088  *           RegSaveKeyW   [ADVAPI32.166]
1089  */
1090 LONG WINAPI RegSaveKeyW( HKEY hkey, LPCWSTR file, LPSECURITY_ATTRIBUTES sa )
1091 {
1092     LPSTR fileA = HEAP_strdupWtoA( GetProcessHeap(), 0, file );
1093     DWORD ret = RegSaveKeyA( hkey, fileA, sa );
1094     if (fileA) HeapFree( GetProcessHeap(), 0, fileA );
1095     return ret;
1096 }