dlls/wmiutils/path.c

   1 /*
   2  * Copyright 2012 Hans Leidekker for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #define COBJMACROS
  20
  21 #include <stdarg.h>
  22
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "ole2.h"
  26 #include "wbemcli.h"
  27 #include "wmiutils.h"
  28
  29 #include "wine/debug.h"
  30 #include "wmiutils_private.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(wmiutils);
  33
  34 struct keylist
  35 {
  36     IWbemPathKeyList IWbemPathKeyList_iface;
  37     IWbemPath       *parent;
  38     LONG             refs;
  39 };
  40
  41 struct key
  42 {
  43     WCHAR *name;
  44     int    len_name;
  45     WCHAR *value;
  46     int    len_value;
  47 };
  48
  49 struct path
  50 {
  51     IWbemPath        IWbemPath_iface;
  52     LONG             refs;
  53     CRITICAL_SECTION cs;
  54     WCHAR           *text;
  55     int              len_text;
  56     WCHAR           *server;
  57     int              len_server;
  58     WCHAR          **namespaces;
  59     int             *len_namespaces;
  60     int              num_namespaces;
  61     WCHAR           *class;
  62     int              len_class;
  63     struct key      *keys;
  64     unsigned int     num_keys;
  65     ULONGLONG        flags;
  66 };
  67
  68 static inline struct keylist *impl_from_IWbemPathKeyList( IWbemPathKeyList *iface )
  69 {
  70     return CONTAINING_RECORD(iface, struct keylist, IWbemPathKeyList_iface);
  71 }
  72
  73 static inline struct path *impl_from_IWbemPath( IWbemPath *iface )
  74 {
  75     return CONTAINING_RECORD(iface, struct path, IWbemPath_iface);
  76 }
  77
  78 static ULONG WINAPI keylist_AddRef(
  79     IWbemPathKeyList *iface )
  80 {
  81     struct keylist *keylist = impl_from_IWbemPathKeyList( iface );
  82     return InterlockedIncrement( &keylist->refs );
  83 }
  84
  85 static ULONG WINAPI keylist_Release(
  86     IWbemPathKeyList *iface )
  87 {
  88     struct keylist *keylist = impl_from_IWbemPathKeyList( iface );
  89     LONG refs = InterlockedDecrement( &keylist->refs );
  90     if (!refs)
  91     {
  92         TRACE("destroying %p\n", keylist);
  93         IWbemPath_Release( keylist->parent );
  94         free( keylist );
  95     }
  96     return refs;
  97 }
  98
  99 static HRESULT WINAPI keylist_QueryInterface(
 100     IWbemPathKeyList *iface,
 101     REFIID riid,
 102     void **ppvObject )
 103 {
 104     struct keylist *keylist = impl_from_IWbemPathKeyList( iface );
 105
 106     TRACE("%p, %s, %p\n", keylist, debugstr_guid(riid), ppvObject);
 107
 108     if (IsEqualGUID( riid, &IID_IWbemPathKeyList ) ||
 109         IsEqualGUID( riid, &IID_IUnknown ))
 110     {
 111         *ppvObject = iface;
 112     }
 113     else
 114     {
 115         FIXME("interface %s not implemented\n", debugstr_guid(riid));
 116         return E_NOINTERFACE;
 117     }
 118     IWbemPathKeyList_AddRef( iface );
 119     return S_OK;
 120 }
 121
 122 static HRESULT WINAPI keylist_GetCount(
 123     IWbemPathKeyList *iface,
 124     ULONG *puKeyCount )
 125 {
 126     struct keylist *keylist = impl_from_IWbemPathKeyList( iface );
 127     struct path *parent = impl_from_IWbemPath( keylist->parent );
 128
 129     TRACE("%p, %p\n", iface, puKeyCount);
 130
 131     if (!puKeyCount) return WBEM_E_INVALID_PARAMETER;
 132
 133     EnterCriticalSection( &parent->cs );
 134
 135     *puKeyCount = parent->num_keys;
 136
 137     LeaveCriticalSection( &parent->cs );
 138     return S_OK;
 139 }
 140
 141 static HRESULT WINAPI keylist_SetKey(
 142     IWbemPathKeyList *iface,
 143     LPCWSTR wszName,
 144     ULONG uFlags,
 145     ULONG uCimType,
 146     LPVOID pKeyVal )
 147 {
 148     FIXME("%p, %s, %#lx, %lu, %p\n", iface, debugstr_w(wszName), uFlags, uCimType, pKeyVal);
 149     return E_NOTIMPL;
 150 }
 151
 152 static HRESULT WINAPI keylist_SetKey2(
 153     IWbemPathKeyList *iface,
 154     LPCWSTR wszName,
 155     ULONG uFlags,
 156     ULONG uCimType,
 157     VARIANT *pKeyVal )
 158 {
 159     FIXME("%p, %s, %#lx, %lu, %p\n", iface, debugstr_w(wszName), uFlags, uCimType, pKeyVal);
 160     return E_NOTIMPL;
 161 }
 162
 163 static HRESULT WINAPI keylist_GetKey(
 164     IWbemPathKeyList *iface,
 165     ULONG uKeyIx,
 166     ULONG uFlags,
 167     ULONG *puNameBufSize,
 168     LPWSTR pszKeyName,
 169     ULONG *puKeyValBufSize,
 170     LPVOID pKeyVal,
 171     ULONG *puApparentCimType )
 172 {
 173     FIXME("%p, %lu, %#lx, %p, %p, %p, %p, %p\n", iface, uKeyIx, uFlags, puNameBufSize,
 174           pszKeyName, puKeyValBufSize, pKeyVal, puApparentCimType);
 175     return E_NOTIMPL;
 176 }
 177
 178 static HRESULT WINAPI keylist_GetKey2(
 179     IWbemPathKeyList *iface,
 180     ULONG uKeyIx,
 181     ULONG uFlags,
 182     ULONG *puNameBufSize,
 183     LPWSTR pszKeyName,
 184     VARIANT *pKeyValue,
 185     ULONG *puApparentCimType )
 186 {
 187     FIXME("%p, %lu, %#lx, %p, %p, %p, %p\n", iface, uKeyIx, uFlags, puNameBufSize,
 188           pszKeyName, pKeyValue, puApparentCimType);
 189     return E_NOTIMPL;
 190 }
 191
 192 static HRESULT WINAPI keylist_RemoveKey(
 193     IWbemPathKeyList *iface,
 194     LPCWSTR wszName,
 195     ULONG uFlags )
 196 {
 197     FIXME("%p, %s, %#lx\n", iface, debugstr_w(wszName), uFlags);
 198     return E_NOTIMPL;
 199 }
 200
 201 static void free_keys( struct key *keys, unsigned int count )
 202 {
 203     unsigned int i;
 204
 205     for (i = 0; i < count; i++)
 206     {
 207         free( keys[i].name );
 208         free( keys[i].value );
 209     }
 210     free( keys );
 211 }
 212
 213 static HRESULT WINAPI keylist_RemoveAllKeys(
 214     IWbemPathKeyList *iface,
 215     ULONG uFlags )
 216 {
 217     struct keylist *keylist = impl_from_IWbemPathKeyList( iface );
 218     struct path *parent = impl_from_IWbemPath( keylist->parent );
 219
 220     TRACE("%p, %#lx\n", iface, uFlags);
 221
 222     if (uFlags) return WBEM_E_INVALID_PARAMETER;
 223
 224     EnterCriticalSection( &parent->cs );
 225
 226     free_keys( parent->keys, parent->num_keys );
 227     parent->num_keys = 0;
 228     parent->keys = NULL;
 229
 230     LeaveCriticalSection( &parent->cs );
 231     return S_OK;
 232 }
 233
 234 static HRESULT WINAPI keylist_MakeSingleton(
 235     IWbemPathKeyList *iface,
 236     boolean bSet )
 237 {
 238     FIXME("%p, %d\n", iface, bSet);
 239     return E_NOTIMPL;
 240 }
 241
 242 static HRESULT WINAPI keylist_GetInfo(
 243     IWbemPathKeyList *iface,
 244     ULONG uRequestedInfo,
 245     ULONGLONG *puResponse )
 246 {
 247     FIXME("%p, %lu, %p\n", iface, uRequestedInfo, puResponse);
 248     return E_NOTIMPL;
 249 }
 250
 251 static HRESULT WINAPI keylist_GetText(
 252     IWbemPathKeyList *iface,
 253     LONG lFlags,
 254     ULONG *puBuffLength,
 255     LPWSTR pszText )
 256 {
 257     FIXME("%p, %#lx, %p, %p\n", iface, lFlags, puBuffLength, pszText);
 258     return E_NOTIMPL;
 259 }
 260
 261 static const struct IWbemPathKeyListVtbl keylist_vtbl =
 262 {
 263     keylist_QueryInterface,
 264     keylist_AddRef,
 265     keylist_Release,
 266     keylist_GetCount,
 267     keylist_SetKey,
 268     keylist_SetKey2,
 269     keylist_GetKey,
 270     keylist_GetKey2,
 271     keylist_RemoveKey,
 272     keylist_RemoveAllKeys,
 273     keylist_MakeSingleton,
 274     keylist_GetInfo,
 275     keylist_GetText
 276 };
 277
 278 static HRESULT WbemPathKeyList_create( IWbemPath *parent, LPVOID *ppObj )
 279 {
 280     struct keylist *keylist;
 281
 282     TRACE("%p\n", ppObj);
 283
 284     if (!(keylist = calloc( 1, sizeof(*keylist) ))) return E_OUTOFMEMORY;
 285
 286     keylist->IWbemPathKeyList_iface.lpVtbl = &keylist_vtbl;
 287     keylist->refs = 1;
 288     keylist->parent = parent;
 289     IWbemPath_AddRef( keylist->parent );
 290
 291     *ppObj = &keylist->IWbemPathKeyList_iface;
 292
 293     TRACE("returning iface %p\n", *ppObj);
 294     return S_OK;
 295 }
 296
 297 static void init_path( struct path *path )
 298 {
 299     path->text           = NULL;
 300     path->len_text       = 0;
 301     path->server         = NULL;
 302     path->len_server     = 0;
 303     path->namespaces     = NULL;
 304     path->len_namespaces = NULL;
 305     path->num_namespaces = 0;
 306     path->class          = NULL;
 307     path->len_class      = 0;
 308     path->keys           = NULL;
 309     path->num_keys       = 0;
 310     path->flags          = 0;
 311 }
 312
 313 static void clear_path( struct path *path )
 314 {
 315     unsigned int i;
 316
 317     free( path->text );
 318     free( path->server );
 319     for (i = 0; i < path->num_namespaces; i++) free( path->namespaces[i] );
 320     free( path->namespaces );
 321     free( path->len_namespaces );
 322     free( path->class );
 323     free_keys( path->keys, path->num_keys );
 324     init_path( path );
 325 }
 326
 327 static ULONG WINAPI path_AddRef(
 328     IWbemPath *iface )
 329 {
 330     struct path *path = impl_from_IWbemPath( iface );
 331     return InterlockedIncrement( &path->refs );
 332 }
 333
 334 static ULONG WINAPI path_Release(
 335     IWbemPath *iface )
 336 {
 337     struct path *path = impl_from_IWbemPath( iface );
 338     LONG refs = InterlockedDecrement( &path->refs );
 339     if (!refs)
 340     {
 341         TRACE("destroying %p\n", path);
 342         clear_path( path );
 343         path->cs.DebugInfo->Spare[0] = 0;
 344         DeleteCriticalSection( &path->cs );
 345         free( path );
 346     }
 347     return refs;
 348 }
 349
 350 static HRESULT WINAPI path_QueryInterface(
 351     IWbemPath *iface,
 352     REFIID riid,
 353     void **ppvObject )
 354 {
 355     struct path *path = impl_from_IWbemPath( iface );
 356
 357     TRACE("%p, %s, %p\n", path, debugstr_guid( riid ), ppvObject );
 358
 359     if ( IsEqualGUID( riid, &IID_IWbemPath ) ||
 360          IsEqualGUID( riid, &IID_IUnknown ) )
 361     {
 362         *ppvObject = iface;
 363     }
 364     else
 365     {
 366         FIXME("interface %s not implemented\n", debugstr_guid(riid));
 367         return E_NOINTERFACE;
 368     }
 369     IWbemPath_AddRef( iface );
 370     return S_OK;
 371 }
 372
 373 static HRESULT parse_key( struct key *key, const WCHAR *str, unsigned int *ret_len )
 374 {
 375     const WCHAR *p, *q;
 376     unsigned int len;
 377
 378     p = q = str;
 379     while (*q && *q != '=')
 380     {
 381         if (*q == ',' || iswspace( *q )) return WBEM_E_INVALID_PARAMETER;
 382         q++;
 383     }
 384     len = q - p;
 385     if (!(key->name = malloc( (len + 1) * sizeof(WCHAR) ))) return E_OUTOFMEMORY;
 386     memcpy( key->name, p, len * sizeof(WCHAR) );
 387     key->name[len] = 0;
 388     key->len_name = len;
 389
 390     p = ++q;
 391     if (!*p || *p == ',' || iswspace( *p )) return WBEM_E_INVALID_PARAMETER;
 392
 393     while (*q && *q != ',') q++;
 394     len = q - p;
 395     if (!(key->value = malloc( (len + 1) * sizeof(WCHAR) ))) return E_OUTOFMEMORY;
 396     memcpy( key->value, p, len * sizeof(WCHAR) );
 397     key->value[len] = 0;
 398     key->len_value = len;
 399
 400     *ret_len = q - str;
 401     if (*q == ',') (*ret_len)++;
 402     return S_OK;
 403 }
 404
 405 static HRESULT parse_text( struct path *path, ULONG mode, const WCHAR *text )
 406 {
 407     HRESULT hr = E_OUTOFMEMORY;
 408     const WCHAR *p, *q;
 409     unsigned int i, len;
 410
 411     p = q = text;
 412     if ((p[0] == '\\' && p[1] == '\\') || (p[0] == '/' && p[1] == '/'))
 413     {
 414         p += 2;
 415         q = p;
 416         while (*q && *q != '\\' && *q != '/') q++;
 417         len = q - p;
 418         if (!(path->server = malloc( (len + 1) * sizeof(WCHAR) ))) goto done;
 419         memcpy( path->server, p, len * sizeof(WCHAR) );
 420         path->server[len] = 0;
 421         path->len_server = len;
 422         path->flags |= WBEMPATH_INFO_PATH_HAD_SERVER;
 423     }
 424     p = q;
 425     if (wcschr( p, '\\' ) || wcschr( p, '/' ))
 426     {
 427         if (*q != '\\' && *q != '/' && *q != ':')
 428         {
 429             path->num_namespaces = 1;
 430             q++;
 431         }
 432         while (*q && *q != ':')
 433         {
 434             if (*q == '\\' || *q == '/') path->num_namespaces++;
 435             q++;
 436         }
 437     }
 438     if (path->num_namespaces)
 439     {
 440         if (!(path->namespaces = malloc( path->num_namespaces * sizeof(WCHAR *) ))) goto done;
 441         if (!(path->len_namespaces = malloc( path->num_namespaces * sizeof(int) ))) goto done;
 442
 443         i = 0;
 444         q = p;
 445         if (*q && *q != '\\' && *q != '/' && *q != ':')
 446         {
 447             p = q;
 448             while (*p && *p != '\\' && *p != '/' && *p != ':') p++;
 449             len = p - q;
 450             if (!(path->namespaces[i] = malloc( (len + 1) * sizeof(WCHAR) ))) goto done;
 451             memcpy( path->namespaces[i], q, len * sizeof(WCHAR) );
 452             path->namespaces[i][len] = 0;
 453             path->len_namespaces[i] = len;
 454             q = p;
 455             i++;
 456         }
 457         while (*q && *q != ':')
 458         {
 459             if (*q == '\\' || *q == '/')
 460             {
 461                 p = q + 1;
 462                 while (*p && *p != '\\' && *p != '/' && *p != ':') p++;
 463                 len = p - q - 1;
 464                 if (!(path->namespaces[i] = malloc( (len + 1) * sizeof(WCHAR) ))) goto done;
 465                 memcpy( path->namespaces[i], q + 1, len * sizeof(WCHAR) );
 466                 path->namespaces[i][len] = 0;
 467                 path->len_namespaces[i] = len;
 468                 i++;
 469             }
 470             q++;
 471         }
 472     }
 473     if (*q == ':') q++;
 474     p = q;
 475     while (*q && *q != '.') q++;
 476     len = q - p;
 477     if (!(path->class = malloc( (len + 1) * sizeof(WCHAR) ))) goto done;
 478     memcpy( path->class, p, len * sizeof(WCHAR) );
 479     path->class[len] = 0;
 480     path->len_class = len;
 481
 482     if (*q == '.')
 483     {
 484         p = ++q;
 485         path->num_keys++;
 486         while (*q)
 487         {
 488             if (*q == ',') path->num_keys++;
 489             q++;
 490         }
 491         if (!(path->keys = calloc( path->num_keys, sizeof(struct key) ))) goto done;
 492         i = 0;
 493         q = p;
 494         while (*q)
 495         {
 496             if (i >= path->num_keys) break;
 497             hr = parse_key( &path->keys[i], q, &len );
 498             if (hr != S_OK) goto done;
 499             q += len;
 500             i++;
 501         }
 502     }
 503     hr = S_OK;
 504
 505 done:
 506     if (hr != S_OK) clear_path( path );
 507     else path->flags |= WBEMPATH_INFO_CIM_COMPLIANT | WBEMPATH_INFO_V2_COMPLIANT;
 508     return hr;
 509 }
 510
 511 static HRESULT WINAPI path_SetText(
 512     IWbemPath *iface,
 513     ULONG uMode,
 514     LPCWSTR pszPath)
 515 {
 516     struct path *path = impl_from_IWbemPath( iface );
 517     HRESULT hr = S_OK;
 518     int len;
 519
 520     TRACE("%p, %lu, %s\n", iface, uMode, debugstr_w(pszPath));
 521
 522     if (!uMode || !pszPath) return WBEM_E_INVALID_PARAMETER;
 523
 524     EnterCriticalSection( &path->cs );
 525
 526     clear_path( path );
 527     if (!pszPath[0]) goto done;
 528     if ((hr = parse_text( path, uMode, pszPath )) != S_OK) goto done;
 529
 530     len = lstrlenW( pszPath );
 531     if (!(path->text = malloc( (len + 1) * sizeof(WCHAR) )))
 532     {
 533         clear_path( path );
 534         hr = E_OUTOFMEMORY;
 535         goto done;
 536     }
 537     lstrcpyW( path->text, pszPath );
 538     path->len_text = len;
 539
 540 done:
 541     LeaveCriticalSection( &path->cs );
 542     return hr;
 543 }
 544
 545 static WCHAR *build_namespace( struct path *path, int *len, BOOL leading_slash )
 546 {
 547     WCHAR *ret, *p;
 548     int i;
 549
 550     *len = 0;
 551     for (i = 0; i < path->num_namespaces; i++)
 552     {
 553         if (i > 0 || leading_slash) *len += 1;
 554         *len += path->len_namespaces[i];
 555     }
 556     if (!(p = ret = malloc( (*len + 1) * sizeof(WCHAR) ))) return NULL;
 557     for (i = 0; i < path->num_namespaces; i++)
 558     {
 559         if (i > 0 || leading_slash) *p++ = '\\';
 560         memcpy( p, path->namespaces[i], path->len_namespaces[i] * sizeof(WCHAR) );
 561         p += path->len_namespaces[i];
 562     }
 563     *p = 0;
 564     return ret;
 565 }
 566
 567 static WCHAR *build_server( struct path *path, int *len )
 568 {
 569     WCHAR *ret, *p;
 570
 571     *len = 0;
 572     if (path->len_server) *len += 2 + path->len_server;
 573     else *len += 3;
 574     if (!(p = ret = malloc( (*len + 1) * sizeof(WCHAR) ))) return NULL;
 575     if (path->len_server)
 576     {
 577         p[0] = p[1] = '\\';
 578         lstrcpyW( p + 2, path->server );
 579     }
 580     else
 581     {
 582         p[0] = p[1] = '\\';
 583         p[2] = '.';
 584         p[3] = 0;
 585     }
 586     return ret;
 587 }
 588
 589 static WCHAR *build_keylist( struct path *path, int *len )
 590 {
 591     WCHAR *ret, *p;
 592     unsigned int i;
 593
 594     *len = 0;
 595     for (i = 0; i < path->num_keys; i++)
 596     {
 597         if (i > 0) *len += 1;
 598         *len += path->keys[i].len_name + path->keys[i].len_value + 1;
 599     }
 600     if (!(p = ret = malloc( (*len + 1) * sizeof(WCHAR) ))) return NULL;
 601     for (i = 0; i < path->num_keys; i++)
 602     {
 603         if (i > 0) *p++ = ',';
 604         memcpy( p, path->keys[i].name, path->keys[i].len_name * sizeof(WCHAR) );
 605         p += path->keys[i].len_name;
 606         *p++ = '=';
 607         memcpy( p, path->keys[i].value, path->keys[i].len_value * sizeof(WCHAR) );
 608         p += path->keys[i].len_value;
 609     }
 610     *p = 0;
 611     return ret;
 612 }
 613
 614 static WCHAR *build_path( struct path *path, LONG flags, int *len )
 615 {
 616     *len = 0;
 617     switch (flags)
 618     {
 619     case 0:
 620     {
 621         int len_namespace, len_keylist;
 622         WCHAR *ret, *namespace = build_namespace( path, &len_namespace, FALSE );
 623         WCHAR *keylist = build_keylist( path, &len_keylist );
 624
 625         if (!namespace || !keylist)
 626         {
 627             free( namespace );
 628             free( keylist );
 629             return NULL;
 630         }
 631         *len = len_namespace;
 632         if (path->len_class)
 633         {
 634             *len += path->len_class + 1;
 635             if (path->num_keys) *len += len_keylist + 1;
 636         }
 637         if (!(ret = malloc( (*len + 1) * sizeof(WCHAR) )))
 638         {
 639             free( namespace );
 640             free( keylist );
 641             return NULL;
 642         }
 643         lstrcpyW( ret, namespace );
 644         if (path->len_class)
 645         {
 646             ret[len_namespace] = ':';
 647             lstrcpyW( ret + len_namespace + 1, path->class );
 648             if (path->num_keys)
 649             {
 650                 ret[len_namespace + path->len_class + 1] = '.';
 651                 lstrcpyW( ret + len_namespace + path->len_class + 2, keylist );
 652             }
 653         }
 654         free( namespace );
 655         free( keylist );
 656         return ret;
 657
 658     }
 659     case WBEMPATH_GET_RELATIVE_ONLY:
 660     {
 661         int len_keylist;
 662         WCHAR *ret, *keylist;
 663
 664         if (!path->len_class) return NULL;
 665         if (!(keylist = build_keylist( path, &len_keylist ))) return NULL;
 666
 667         *len = path->len_class;
 668         if (path->num_keys) *len += len_keylist + 1;
 669         if (!(ret = malloc( (*len + 1) * sizeof(WCHAR) )))
 670         {
 671             free( keylist );
 672             return NULL;
 673         }
 674         lstrcpyW( ret, path->class );
 675         if (path->num_keys)
 676         {
 677             ret[path->len_class] = '.';
 678             lstrcpyW( ret + path->len_class + 1, keylist );
 679         }
 680         free( keylist );
 681         return ret;
 682     }
 683     case WBEMPATH_GET_SERVER_TOO:
 684     {
 685         int len_namespace, len_server, len_keylist;
 686         WCHAR *p, *ret, *namespace = build_namespace( path, &len_namespace, TRUE );
 687         WCHAR *server = build_server( path, &len_server );
 688         WCHAR *keylist = build_keylist( path, &len_keylist );
 689
 690         if (!namespace || !server || !keylist)
 691         {
 692             free( namespace );
 693             free( server );
 694             free( keylist );
 695             return NULL;
 696         }
 697         *len = len_namespace + len_server;
 698         if (path->len_class)
 699         {
 700             *len += path->len_class + 1;
 701             if (path->num_keys) *len += len_keylist + 1;
 702         }
 703         if (!(p = ret = malloc( (*len + 1) * sizeof(WCHAR) )))
 704         {
 705             free( namespace );
 706             free( server );
 707             free( keylist );
 708             return NULL;
 709         }
 710         lstrcpyW( p, server );
 711         p += len_server;
 712         lstrcpyW( p, namespace );
 713         p += len_namespace;
 714         if (path->len_class)
 715         {
 716             *p++ = ':';
 717             lstrcpyW( p, path->class );
 718             if (path->num_keys)
 719             {
 720                 p[path->len_class] = '.';
 721                 lstrcpyW( p + path->len_class + 1, keylist );
 722             }
 723         }
 724         free( namespace );
 725         free( server );
 726         free( keylist );
 727         return ret;
 728     }
 729     case WBEMPATH_GET_SERVER_AND_NAMESPACE_ONLY:
 730     {
 731         int len_namespace, len_server;
 732         WCHAR *p, *ret, *namespace = build_namespace( path, &len_namespace, TRUE );
 733         WCHAR *server = build_server( path, &len_server );
 734
 735         if (!namespace || !server)
 736         {
 737             free( namespace );
 738             free( server );
 739             return NULL;
 740         }
 741         *len = len_namespace + len_server;
 742         if (!(p = ret = malloc( (*len + 1) * sizeof(WCHAR) )))
 743         {
 744             free( namespace );
 745             free( server );
 746             return NULL;
 747         }
 748         lstrcpyW( p, server );
 749         p += len_server;
 750         lstrcpyW( p, namespace );
 751         free( namespace );
 752         free( server );
 753         return ret;
 754     }
 755     case WBEMPATH_GET_NAMESPACE_ONLY:
 756         return build_namespace( path, len, FALSE );
 757
 758     case WBEMPATH_GET_ORIGINAL:
 759         if (!path->len_text) return NULL;
 760         *len = path->len_text;
 761         return wcsdup( path->text );
 762
 763     default:
 764         ERR( "unhandled flags %#lx\n", flags );
 765         return NULL;
 766     }
 767 }
 768
 769 static HRESULT WINAPI path_GetText(
 770     IWbemPath *iface,
 771     LONG lFlags,
 772     ULONG *puBufferLength,
 773     LPWSTR pszText)
 774 {
 775     struct path *path = impl_from_IWbemPath( iface );
 776     HRESULT hr = S_OK;
 777     WCHAR *str;
 778     int len;
 779
 780     TRACE("%p, %#lx, %p, %p\n", iface, lFlags, puBufferLength, pszText);
 781
 782     if (!puBufferLength) return WBEM_E_INVALID_PARAMETER;
 783
 784     EnterCriticalSection( &path->cs );
 785
 786     str = build_path( path, lFlags, &len );
 787     if (*puBufferLength < len + 1)
 788     {
 789         *puBufferLength = len + 1;
 790         goto done;
 791     }
 792     if (!pszText)
 793     {
 794         hr = WBEM_E_INVALID_PARAMETER;
 795         goto done;
 796     }
 797     if (str) lstrcpyW( pszText, str );
 798     else pszText[0] = 0;
 799     *puBufferLength = len + 1;
 800
 801     TRACE("returning %s\n", debugstr_w(pszText));
 802
 803 done:
 804     free( str );
 805     LeaveCriticalSection( &path->cs );
 806     return hr;
 807 }
 808
 809 static HRESULT WINAPI path_GetInfo(
 810     IWbemPath *iface,
 811     ULONG info,
 812     ULONGLONG *response)
 813 {
 814     struct path *path = impl_from_IWbemPath( iface );
 815
 816     TRACE("%p, %lu, %p\n", iface, info, response);
 817
 818     if (info || !response) return WBEM_E_INVALID_PARAMETER;
 819
 820     FIXME("some flags are not implemented\n");
 821
 822     EnterCriticalSection( &path->cs );
 823
 824     *response = path->flags;
 825     if (!path->server || (path->len_server == 1 && path->server[0] == '.'))
 826         *response |= WBEMPATH_INFO_ANON_LOCAL_MACHINE;
 827     else
 828         *response |= WBEMPATH_INFO_HAS_MACHINE_NAME;
 829
 830     if (!path->class)
 831         *response |= WBEMPATH_INFO_SERVER_NAMESPACE_ONLY;
 832     else
 833     {
 834         *response |= WBEMPATH_INFO_HAS_SUBSCOPES;
 835         if (path->num_keys)
 836             *response |= WBEMPATH_INFO_IS_INST_REF;
 837         else
 838             *response |= WBEMPATH_INFO_IS_CLASS_REF;
 839     }
 840
 841     LeaveCriticalSection( &path->cs );
 842     return S_OK;
 843 }
 844
 845 static HRESULT WINAPI path_SetServer(
 846     IWbemPath *iface,
 847     LPCWSTR name)
 848 {
 849     struct path *path = impl_from_IWbemPath( iface );
 850     static const ULONGLONG flags =
 851         WBEMPATH_INFO_PATH_HAD_SERVER | WBEMPATH_INFO_V1_COMPLIANT |
 852         WBEMPATH_INFO_V2_COMPLIANT | WBEMPATH_INFO_CIM_COMPLIANT;
 853     WCHAR *server;
 854
 855     TRACE("%p, %s\n", iface, debugstr_w(name));
 856
 857     EnterCriticalSection( &path->cs );
 858
 859     if (name)
 860     {
 861         if (!(server = wcsdup( name )))
 862         {
 863             LeaveCriticalSection( &path->cs );
 864             return WBEM_E_OUT_OF_MEMORY;
 865         }
 866         free( path->server );
 867         path->server = server;
 868         path->len_server = lstrlenW( path->server );
 869         path->flags |= flags;
 870     }
 871     else
 872     {
 873         free( path->server );
 874         path->server = NULL;
 875         path->len_server = 0;
 876         path->flags &= ~flags;
 877     }
 878
 879     LeaveCriticalSection( &path->cs );
 880     return S_OK;
 881 }
 882
 883 static HRESULT WINAPI path_GetServer(
 884     IWbemPath *iface,
 885     ULONG *len,
 886     LPWSTR name)
 887 {
 888     struct path *path = impl_from_IWbemPath( iface );
 889
 890     TRACE("%p, %p, %p\n", iface, len, name);
 891
 892     if (!len || (*len && !name)) return WBEM_E_INVALID_PARAMETER;
 893
 894     EnterCriticalSection( &path->cs );
 895
 896     if (!path->server)
 897     {
 898         LeaveCriticalSection( &path->cs );
 899         return WBEM_E_NOT_AVAILABLE;
 900     }
 901     if (*len > path->len_server) lstrcpyW( name, path->server );
 902     *len = path->len_server + 1;
 903
 904     LeaveCriticalSection( &path->cs );
 905     return S_OK;
 906 }
 907
 908 static HRESULT WINAPI path_GetNamespaceCount(
 909     IWbemPath *iface,
 910     ULONG *puCount)
 911 {
 912     struct path *path = impl_from_IWbemPath( iface );
 913
 914     TRACE("%p, %p\n", iface, puCount);
 915
 916     if (!puCount) return WBEM_E_INVALID_PARAMETER;
 917
 918     EnterCriticalSection( &path->cs );
 919     *puCount = path->num_namespaces;
 920     LeaveCriticalSection( &path->cs );
 921     return S_OK;
 922 }
 923
 924 static HRESULT WINAPI path_SetNamespaceAt(
 925     IWbemPath *iface,
 926     ULONG idx,
 927     LPCWSTR name)
 928 {
 929     struct path *path = impl_from_IWbemPath( iface );
 930     static const ULONGLONG flags =
 931         WBEMPATH_INFO_V1_COMPLIANT | WBEMPATH_INFO_V2_COMPLIANT |
 932         WBEMPATH_INFO_CIM_COMPLIANT;
 933     int i, *tmp_len;
 934     WCHAR **tmp, *new;
 935     DWORD size;
 936
 937     TRACE( "%p, %lu, %s\n", iface, idx, debugstr_w(name) );
 938
 939     EnterCriticalSection( &path->cs );
 940
 941     if (idx > path->num_namespaces || !name)
 942     {
 943         LeaveCriticalSection( &path->cs );
 944         return WBEM_E_INVALID_PARAMETER;
 945     }
 946     if (!(new = wcsdup( name )))
 947     {
 948         LeaveCriticalSection( &path->cs );
 949         return WBEM_E_OUT_OF_MEMORY;
 950     }
 951     size = (path->num_namespaces + 1) * sizeof(WCHAR *);
 952     if (path->namespaces) tmp = realloc( path->namespaces, size );
 953     else tmp = malloc( size );
 954     if (!tmp)
 955     {
 956         free( new );
 957         LeaveCriticalSection( &path->cs );
 958         return WBEM_E_OUT_OF_MEMORY;
 959     }
 960     path->namespaces = tmp;
 961     size = (path->num_namespaces + 1) * sizeof(int);
 962     if (path->len_namespaces) tmp_len = realloc( path->len_namespaces, size );
 963     else tmp_len = malloc( size );
 964     if (!tmp_len)
 965     {
 966         free( new );
 967         LeaveCriticalSection( &path->cs );
 968         return WBEM_E_OUT_OF_MEMORY;
 969     }
 970     path->len_namespaces = tmp_len;
 971     for (i = idx; i < path->num_namespaces; i++)
 972     {
 973         path->namespaces[i + 1] = path->namespaces[i];
 974         path->len_namespaces[i + 1] = path->len_namespaces[i];
 975     }
 976     path->namespaces[idx] = new;
 977     path->len_namespaces[idx] = lstrlenW( new );
 978     path->num_namespaces++;
 979     path->flags |= flags;
 980
 981     LeaveCriticalSection( &path->cs );
 982     return S_OK;
 983 }
 984
 985 static HRESULT WINAPI path_GetNamespaceAt(
 986     IWbemPath *iface,
 987     ULONG idx,
 988     ULONG *len,
 989     LPWSTR name)
 990 {
 991     struct path *path = impl_from_IWbemPath( iface );
 992
 993     TRACE( "%p, %lu, %p, %p\n", iface, idx, len, name );
 994
 995     EnterCriticalSection( &path->cs );
 996
 997     if (!len || (*len && !name) || idx >= path->num_namespaces)
 998     {
 999         LeaveCriticalSection( &path->cs );
1000         return WBEM_E_INVALID_PARAMETER;
1001     }
1002     if (*len > path->len_namespaces[idx]) lstrcpyW( name, path->namespaces[idx] );
1003     *len = path->len_namespaces[idx] + 1;
1004
1005     LeaveCriticalSection( &path->cs );
1006     return S_OK;
1007 }
1008
1009 static HRESULT WINAPI path_RemoveNamespaceAt(
1010     IWbemPath *iface,
1011     ULONG idx)
1012 {
1013     struct path *path = impl_from_IWbemPath( iface );
1014
1015     TRACE( "%p, %lu\n", iface, idx );
1016
1017     EnterCriticalSection( &path->cs );
1018
1019     if (idx >= path->num_namespaces)
1020     {
1021         LeaveCriticalSection( &path->cs );
1022         return WBEM_E_INVALID_PARAMETER;
1023     }
1024     free( path->namespaces[idx] );
1025     while (idx < path->num_namespaces - 1)
1026     {
1027         path->namespaces[idx] = path->namespaces[idx + 1];
1028         path->len_namespaces[idx] = path->len_namespaces[idx + 1];
1029         idx++;
1030     }
1031     path->num_namespaces--;
1032
1033     LeaveCriticalSection( &path->cs );
1034     return S_OK;
1035 }
1036
1037 static HRESULT WINAPI path_RemoveAllNamespaces(
1038     IWbemPath *iface)
1039 {
1040     struct path *path = impl_from_IWbemPath( iface );
1041     int i;
1042
1043     TRACE("%p\n", iface);
1044
1045     EnterCriticalSection( &path->cs );
1046
1047     for (i = 0; i < path->num_namespaces; i++) free( path->namespaces[i] );
1048     path->num_namespaces = 0;
1049     free( path->namespaces );
1050     path->namespaces = NULL;
1051     free( path->len_namespaces );
1052     path->len_namespaces = NULL;
1053
1054     LeaveCriticalSection( &path->cs );
1055     return S_OK;
1056 }
1057
1058 static HRESULT WINAPI path_GetScopeCount(
1059     IWbemPath *iface,
1060     ULONG *puCount)
1061 {
1062     FIXME("%p, %p\n", iface, puCount);
1063     return E_NOTIMPL;
1064 }
1065
1066 static HRESULT WINAPI path_SetScope(
1067     IWbemPath *iface,
1068     ULONG uIndex,
1069     LPWSTR pszClass)
1070 {
1071     FIXME("%p, %lu, %s\n", iface, uIndex, debugstr_w(pszClass));
1072     return E_NOTIMPL;
1073 }
1074
1075 static HRESULT WINAPI path_SetScopeFromText(
1076     IWbemPath *iface,
1077     ULONG uIndex,
1078     LPWSTR pszText)
1079 {
1080     FIXME("%p, %lu, %s\n", iface, uIndex, debugstr_w(pszText));
1081     return E_NOTIMPL;
1082 }
1083
1084 static HRESULT WINAPI path_GetScope(
1085     IWbemPath *iface,
1086     ULONG uIndex,
1087     ULONG *puClassNameBufSize,
1088     LPWSTR pszClass,
1089     IWbemPathKeyList **pKeyList)
1090 {
1091     FIXME("%p, %lu, %p, %p, %p\n", iface, uIndex, puClassNameBufSize, pszClass, pKeyList);
1092     return E_NOTIMPL;
1093 }
1094
1095 static HRESULT WINAPI path_GetScopeAsText(
1096     IWbemPath *iface,
1097     ULONG uIndex,
1098     ULONG *puTextBufSize,
1099     LPWSTR pszText)
1100 {
1101     FIXME("%p, %lu, %p, %p\n", iface, uIndex, puTextBufSize, pszText);
1102     return E_NOTIMPL;
1103 }
1104
1105 static HRESULT WINAPI path_RemoveScope(
1106     IWbemPath *iface,
1107     ULONG uIndex)
1108 {
1109     FIXME("%p, %lu\n", iface, uIndex);
1110     return E_NOTIMPL;
1111 }
1112
1113 static HRESULT WINAPI path_RemoveAllScopes(
1114     IWbemPath *iface)
1115 {
1116     FIXME("%p\n", iface);
1117     return E_NOTIMPL;
1118 }
1119
1120 static HRESULT WINAPI path_SetClassName(
1121     IWbemPath *iface,
1122     LPCWSTR name)
1123 {
1124     struct path *path = impl_from_IWbemPath( iface );
1125     WCHAR *class;
1126
1127     TRACE("%p, %s\n", iface, debugstr_w(name));
1128
1129     if (!name) return WBEM_E_INVALID_PARAMETER;
1130     if (!(class = wcsdup( name ))) return WBEM_E_OUT_OF_MEMORY;
1131
1132     EnterCriticalSection( &path->cs );
1133
1134     free( path->class );
1135     path->class = class;
1136     path->len_class = lstrlenW( path->class );
1137     path->flags |= WBEMPATH_INFO_V2_COMPLIANT | WBEMPATH_INFO_CIM_COMPLIANT;
1138
1139     LeaveCriticalSection( &path->cs );
1140     return S_OK;
1141 }
1142
1143 static HRESULT WINAPI path_GetClassName(
1144     IWbemPath *iface,
1145     ULONG *len,
1146     LPWSTR name)
1147 {
1148     struct path *path = impl_from_IWbemPath( iface );
1149
1150     TRACE("%p, %p, %p\n", iface, len, name);
1151
1152     if (!len || (*len && !name)) return WBEM_E_INVALID_PARAMETER;
1153
1154     EnterCriticalSection( &path->cs );
1155
1156     if (!path->class)
1157     {
1158         LeaveCriticalSection( &path->cs );
1159         return WBEM_E_INVALID_OBJECT_PATH;
1160     }
1161     if (*len > path->len_class) lstrcpyW( name, path->class );
1162     *len = path->len_class + 1;
1163
1164     LeaveCriticalSection( &path->cs );
1165     return S_OK;
1166 }
1167
1168 static HRESULT WINAPI path_GetKeyList(
1169     IWbemPath *iface,
1170     IWbemPathKeyList **pOut)
1171 {
1172     struct path *path = impl_from_IWbemPath( iface );
1173     HRESULT hr;
1174
1175     TRACE("%p, %p\n", iface, pOut);
1176
1177     EnterCriticalSection( &path->cs );
1178
1179     if (!path->class)
1180     {
1181         LeaveCriticalSection( &path->cs );
1182         return WBEM_E_INVALID_PARAMETER;
1183     }
1184     hr = WbemPathKeyList_create( iface, (void **)pOut );
1185
1186     LeaveCriticalSection( &path->cs );
1187     return hr;
1188 }
1189
1190 static HRESULT WINAPI path_CreateClassPart(
1191     IWbemPath *iface,
1192     LONG lFlags,
1193     LPCWSTR Name)
1194 {
1195     FIXME("%p, %#lx, %s\n", iface, lFlags, debugstr_w(Name));
1196     return E_NOTIMPL;
1197 }
1198
1199 static HRESULT WINAPI path_DeleteClassPart(
1200     IWbemPath *iface,
1201     LONG lFlags)
1202 {
1203     FIXME("%p, %#lx\n", iface, lFlags);
1204     return E_NOTIMPL;
1205 }
1206
1207 static BOOL WINAPI path_IsRelative(
1208     IWbemPath *iface,
1209     LPWSTR wszMachine,
1210     LPWSTR wszNamespace)
1211 {
1212     FIXME("%p, %s, %s\n", iface, debugstr_w(wszMachine), debugstr_w(wszNamespace));
1213     return FALSE;
1214 }
1215
1216 static BOOL WINAPI path_IsRelativeOrChild(
1217     IWbemPath *iface,
1218     LPWSTR wszMachine,
1219     LPWSTR wszNamespace,
1220     LONG lFlags)
1221 {
1222     FIXME("%p, %s, %s, %#lx\n", iface, debugstr_w(wszMachine), debugstr_w(wszNamespace), lFlags);
1223     return FALSE;
1224 }
1225
1226 static BOOL WINAPI path_IsLocal(
1227     IWbemPath *iface,
1228     LPCWSTR wszMachine)
1229 {
1230     FIXME("%p, %s\n", iface, debugstr_w(wszMachine));
1231     return FALSE;
1232 }
1233
1234 static BOOL WINAPI path_IsSameClassName(
1235     IWbemPath *iface,
1236     LPCWSTR wszClass)
1237 {
1238     FIXME("%p, %s\n", iface, debugstr_w(wszClass));
1239     return FALSE;
1240 }
1241
1242 static const struct IWbemPathVtbl path_vtbl =
1243 {
1244     path_QueryInterface,
1245     path_AddRef,
1246     path_Release,
1247     path_SetText,
1248     path_GetText,
1249     path_GetInfo,
1250     path_SetServer,
1251     path_GetServer,
1252     path_GetNamespaceCount,
1253     path_SetNamespaceAt,
1254     path_GetNamespaceAt,
1255     path_RemoveNamespaceAt,
1256     path_RemoveAllNamespaces,
1257     path_GetScopeCount,
1258     path_SetScope,
1259     path_SetScopeFromText,
1260     path_GetScope,
1261     path_GetScopeAsText,
1262     path_RemoveScope,
1263     path_RemoveAllScopes,
1264     path_SetClassName,
1265     path_GetClassName,
1266     path_GetKeyList,
1267     path_CreateClassPart,
1268     path_DeleteClassPart,
1269     path_IsRelative,
1270     path_IsRelativeOrChild,
1271     path_IsLocal,
1272     path_IsSameClassName
1273 };
1274
1275 HRESULT WbemPath_create( LPVOID *ppObj )
1276 {
1277     struct path *path;
1278
1279     TRACE("%p\n", ppObj);
1280
1281     if (!(path = calloc( 1, sizeof(*path) ))) return E_OUTOFMEMORY;
1282
1283     path->IWbemPath_iface.lpVtbl = &path_vtbl;
1284     path->refs = 1;
1285     InitializeCriticalSection( &path->cs );
1286     path->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": wmiutils_path.cs");
1287     init_path( path );
1288
1289     *ppObj = &path->IWbemPath_iface;
1290
1291     TRACE("returning iface %p\n", *ppObj);
1292     return S_OK;
1293 }