dlls/user32/winstation.c

   1 /*
   2  * Window stations and desktops
   3  *
   4  * Copyright 2002 Alexandre Julliard
   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 "ntstatus.h"
  22 #define WIN32_NO_STATUS
  23
  24 #include <stdarg.h>
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winnls.h"
  28 #include "winerror.h"
  29 #include "wingdi.h"
  30 #include "winuser.h"
  31 #include "wine/server.h"
  32 #include "wine/unicode.h"
  33 #include "wine/debug.h"
  34 #include "user_private.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(winstation);
  37
  38
  39 /* callback for enumeration functions */
  40 struct enum_proc_lparam
  41 {
  42     NAMEENUMPROCA func;
  43     LPARAM        lparam;
  44 };
  45
  46 static BOOL CALLBACK enum_names_WtoA( LPWSTR name, LPARAM lparam )
  47 {
  48     struct enum_proc_lparam *data = (struct enum_proc_lparam *)lparam;
  49     char buffer[MAX_PATH];
  50
  51     if (!WideCharToMultiByte( CP_ACP, 0, name, -1, buffer, sizeof(buffer), NULL, NULL ))
  52         return FALSE;
  53     return data->func( buffer, data->lparam );
  54 }
  55
  56
  57 /***********************************************************************
  58  *              CreateWindowStationA  (USER32.@)
  59  */
  60 HWINSTA WINAPI CreateWindowStationA( LPCSTR name, DWORD reserved, ACCESS_MASK access,
  61                                      LPSECURITY_ATTRIBUTES sa )
  62 {
  63     WCHAR buffer[MAX_PATH];
  64
  65     if (!name) return CreateWindowStationW( NULL, reserved, access, sa );
  66
  67     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
  68     {
  69         SetLastError( ERROR_FILENAME_EXCED_RANGE );
  70         return 0;
  71     }
  72     return CreateWindowStationW( buffer, reserved, access, sa );
  73 }
  74
  75
  76 /***********************************************************************
  77  *              CreateWindowStationW  (USER32.@)
  78  */
  79 HWINSTA WINAPI CreateWindowStationW( LPCWSTR name, DWORD reserved, ACCESS_MASK access,
  80                                      LPSECURITY_ATTRIBUTES sa )
  81 {
  82     HANDLE ret;
  83     DWORD len = name ? strlenW(name) : 0;
  84
  85     if (len >= MAX_PATH)
  86     {
  87         SetLastError( ERROR_FILENAME_EXCED_RANGE );
  88         return 0;
  89     }
  90     SERVER_START_REQ( create_winstation )
  91     {
  92         req->flags      = 0;
  93         req->access     = access;
  94         req->attributes = OBJ_CASE_INSENSITIVE | OBJ_OPENIF |
  95                           ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
  96         wine_server_add_data( req, name, len * sizeof(WCHAR) );
  97         /* it doesn't seem to set last error */
  98         wine_server_call( req );
  99         ret = reply->handle;
 100     }
 101     SERVER_END_REQ;
 102     return ret;
 103 }
 104
 105
 106 /******************************************************************************
 107  *              OpenWindowStationA  (USER32.@)
 108  */
 109 HWINSTA WINAPI OpenWindowStationA( LPCSTR name, BOOL inherit, ACCESS_MASK access )
 110 {
 111     WCHAR buffer[MAX_PATH];
 112
 113     if (!name) return OpenWindowStationW( NULL, inherit, access );
 114
 115     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 116     {
 117         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 118         return 0;
 119     }
 120     return OpenWindowStationW( buffer, inherit, access );
 121 }
 122
 123
 124 /******************************************************************************
 125  *              OpenWindowStationW  (USER32.@)
 126  */
 127 HWINSTA WINAPI OpenWindowStationW( LPCWSTR name, BOOL inherit, ACCESS_MASK access )
 128 {
 129     HANDLE ret = 0;
 130     DWORD len = name ? strlenW(name) : 0;
 131     if (len >= MAX_PATH)
 132     {
 133         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 134         return 0;
 135     }
 136     SERVER_START_REQ( open_winstation )
 137     {
 138         req->access     = access;
 139         req->attributes = OBJ_CASE_INSENSITIVE | (inherit ? OBJ_INHERIT : 0);
 140         wine_server_add_data( req, name, len * sizeof(WCHAR) );
 141         if (!wine_server_call_err( req )) ret = reply->handle;
 142     }
 143     SERVER_END_REQ;
 144     return ret;
 145 }
 146
 147
 148 /***********************************************************************
 149  *              CloseWindowStation  (USER32.@)
 150  */
 151 BOOL WINAPI CloseWindowStation( HWINSTA handle )
 152 {
 153     BOOL ret;
 154     SERVER_START_REQ( close_winstation )
 155     {
 156         req->handle = handle;
 157         ret = !wine_server_call_err( req );
 158     }
 159     SERVER_END_REQ;
 160     return ret;
 161 }
 162
 163
 164 /******************************************************************************
 165  *              GetProcessWindowStation  (USER32.@)
 166  */
 167 HWINSTA WINAPI GetProcessWindowStation(void)
 168 {
 169     HWINSTA ret = 0;
 170
 171     SERVER_START_REQ( get_process_winstation )
 172     {
 173         if (!wine_server_call_err( req )) ret = reply->handle;
 174     }
 175     SERVER_END_REQ;
 176     return ret;
 177 }
 178
 179
 180 /***********************************************************************
 181  *              SetProcessWindowStation  (USER32.@)
 182  */
 183 BOOL WINAPI SetProcessWindowStation( HWINSTA handle )
 184 {
 185     BOOL ret;
 186
 187     SERVER_START_REQ( set_process_winstation )
 188     {
 189         req->handle = handle;
 190         ret = !wine_server_call_err( req );
 191     }
 192     SERVER_END_REQ;
 193     return ret;
 194 }
 195
 196
 197 /******************************************************************************
 198  *              EnumWindowStationsA  (USER32.@)
 199  */
 200 BOOL WINAPI EnumWindowStationsA( WINSTAENUMPROCA func, LPARAM lparam )
 201 {
 202     struct enum_proc_lparam data;
 203     data.func   = func;
 204     data.lparam = lparam;
 205     return EnumWindowStationsW( enum_names_WtoA, (LPARAM)&data );
 206 }
 207
 208
 209 /******************************************************************************
 210  *              EnumWindowStationsW  (USER32.@)
 211  */
 212 BOOL WINAPI EnumWindowStationsW( WINSTAENUMPROCW func, LPARAM lparam )
 213 {
 214     unsigned int index = 0;
 215     WCHAR name[MAX_PATH];
 216     BOOL ret = TRUE;
 217     NTSTATUS status;
 218
 219     while (ret)
 220     {
 221         SERVER_START_REQ( enum_winstation )
 222         {
 223             req->index = index;
 224             wine_server_set_reply( req, name, sizeof(name) - sizeof(WCHAR) );
 225             status = wine_server_call( req );
 226             name[wine_server_reply_size(reply)/sizeof(WCHAR)] = 0;
 227             index = reply->next;
 228         }
 229         SERVER_END_REQ;
 230         if (status == STATUS_NO_MORE_ENTRIES)
 231             break;
 232         if (status)
 233         {
 234             SetLastError( RtlNtStatusToDosError( status ) );
 235             return FALSE;
 236         }
 237         ret = func( name, lparam );
 238     }
 239     return ret;
 240 }
 241
 242
 243 /***********************************************************************
 244  *              CreateDesktopA   (USER32.@)
 245  */
 246 HDESK WINAPI CreateDesktopA( LPCSTR name, LPCSTR device, LPDEVMODEA devmode,
 247                              DWORD flags, ACCESS_MASK access, LPSECURITY_ATTRIBUTES sa )
 248 {
 249     WCHAR buffer[MAX_PATH];
 250
 251     if (device || devmode)
 252     {
 253         SetLastError( ERROR_INVALID_PARAMETER );
 254         return 0;
 255     }
 256     if (!name) return CreateDesktopW( NULL, NULL, NULL, flags, access, sa );
 257
 258     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 259     {
 260         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 261         return 0;
 262     }
 263     return CreateDesktopW( buffer, NULL, NULL, flags, access, sa );
 264 }
 265
 266
 267 /***********************************************************************
 268  *              CreateDesktopW   (USER32.@)
 269  */
 270 HDESK WINAPI CreateDesktopW( LPCWSTR name, LPCWSTR device, LPDEVMODEW devmode,
 271                              DWORD flags, ACCESS_MASK access, LPSECURITY_ATTRIBUTES sa )
 272 {
 273     HANDLE ret;
 274     DWORD len = name ? strlenW(name) : 0;
 275
 276     if (device || devmode)
 277     {
 278         SetLastError( ERROR_INVALID_PARAMETER );
 279         return 0;
 280     }
 281     if (len >= MAX_PATH)
 282     {
 283         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 284         return 0;
 285     }
 286     SERVER_START_REQ( create_desktop )
 287     {
 288         req->flags      = flags;
 289         req->access     = access;
 290         req->attributes = OBJ_CASE_INSENSITIVE | OBJ_OPENIF |
 291                           ((sa && sa->bInheritHandle) ? OBJ_INHERIT : 0);
 292         wine_server_add_data( req, name, len * sizeof(WCHAR) );
 293         /* it doesn't seem to set last error */
 294         wine_server_call( req );
 295         ret = reply->handle;
 296     }
 297     SERVER_END_REQ;
 298     return ret;
 299 }
 300
 301
 302 /******************************************************************************
 303  *              OpenDesktopA   (USER32.@)
 304  */
 305 HDESK WINAPI OpenDesktopA( LPCSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
 306 {
 307     WCHAR buffer[MAX_PATH];
 308
 309     if (!name) return OpenDesktopW( NULL, flags, inherit, access );
 310
 311     if (!MultiByteToWideChar( CP_ACP, 0, name, -1, buffer, MAX_PATH ))
 312     {
 313         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 314         return 0;
 315     }
 316     return OpenDesktopW( buffer, flags, inherit, access );
 317 }
 318
 319
 320 HDESK open_winstation_desktop( HWINSTA hwinsta, LPCWSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
 321 {
 322     HANDLE ret = 0;
 323     DWORD len = name ? strlenW(name) : 0;
 324     if (len >= MAX_PATH)
 325     {
 326         SetLastError( ERROR_FILENAME_EXCED_RANGE );
 327         return 0;
 328     }
 329     SERVER_START_REQ( open_desktop )
 330     {
 331         req->winsta     = hwinsta;
 332         req->flags      = flags;
 333         req->access     = access;
 334         req->attributes = OBJ_CASE_INSENSITIVE | (inherit ? OBJ_INHERIT : 0);
 335         wine_server_add_data( req, name, len * sizeof(WCHAR) );
 336         if (!wine_server_call( req )) ret = reply->handle;
 337     }
 338     SERVER_END_REQ;
 339     return ret;
 340 }
 341
 342
 343 /******************************************************************************
 344  *              OpenDesktopW   (USER32.@)
 345  */
 346 HDESK WINAPI OpenDesktopW( LPCWSTR name, DWORD flags, BOOL inherit, ACCESS_MASK access )
 347 {
 348     return open_winstation_desktop( NULL, name, flags, inherit, access );
 349 }
 350
 351
 352 /***********************************************************************
 353  *              CloseDesktop  (USER32.@)
 354  */
 355 BOOL WINAPI CloseDesktop( HDESK handle )
 356 {
 357     BOOL ret;
 358     SERVER_START_REQ( close_desktop )
 359     {
 360         req->handle = handle;
 361         ret = !wine_server_call_err( req );
 362     }
 363     SERVER_END_REQ;
 364     return ret;
 365 }
 366
 367
 368 /******************************************************************************
 369  *              GetThreadDesktop   (USER32.@)
 370  */
 371 HDESK WINAPI GetThreadDesktop( DWORD thread )
 372 {
 373     HDESK ret = 0;
 374
 375     SERVER_START_REQ( get_thread_desktop )
 376     {
 377         req->tid = thread;
 378         if (!wine_server_call_err( req )) ret = reply->handle;
 379     }
 380     SERVER_END_REQ;
 381     return ret;
 382 }
 383
 384
 385 /******************************************************************************
 386  *              SetThreadDesktop   (USER32.@)
 387  */
 388 BOOL WINAPI SetThreadDesktop( HDESK handle )
 389 {
 390     BOOL ret;
 391
 392     SERVER_START_REQ( set_thread_desktop )
 393     {
 394         req->handle = handle;
 395         ret = !wine_server_call_err( req );
 396     }
 397     SERVER_END_REQ;
 398     if (ret) get_user_thread_info()->desktop = 0;  /* reset the desktop window */
 399     return ret;
 400 }
 401
 402
 403 /******************************************************************************
 404  *              EnumDesktopsA   (USER32.@)
 405  */
 406 BOOL WINAPI EnumDesktopsA( HWINSTA winsta, DESKTOPENUMPROCA func, LPARAM lparam )
 407 {
 408     struct enum_proc_lparam data;
 409     data.func   = func;
 410     data.lparam = lparam;
 411     return EnumDesktopsW( winsta, enum_names_WtoA, (LPARAM)&data );
 412 }
 413
 414
 415 /******************************************************************************
 416  *              EnumDesktopsW   (USER32.@)
 417  */
 418 BOOL WINAPI EnumDesktopsW( HWINSTA winsta, DESKTOPENUMPROCW func, LPARAM lparam )
 419 {
 420     unsigned int index = 0;
 421     WCHAR name[MAX_PATH];
 422     BOOL ret = TRUE;
 423     NTSTATUS status;
 424
 425     if (!winsta)
 426         winsta = GetProcessWindowStation();
 427
 428     while (ret)
 429     {
 430         SERVER_START_REQ( enum_desktop )
 431         {
 432             req->winstation = winsta;
 433             req->index      = index;
 434             wine_server_set_reply( req, name, sizeof(name) - sizeof(WCHAR) );
 435             status = wine_server_call( req );
 436             name[wine_server_reply_size(reply)/sizeof(WCHAR)] = 0;
 437             index = reply->next;
 438         }
 439         SERVER_END_REQ;
 440         if (status == STATUS_NO_MORE_ENTRIES)
 441             break;
 442         if (status)
 443         {
 444             SetLastError( RtlNtStatusToDosError( status ) );
 445             return FALSE;
 446         }
 447         ret = func(name, lparam);
 448     }
 449     return ret;
 450 }
 451
 452
 453 /******************************************************************************
 454  *              OpenInputDesktop   (USER32.@)
 455  */
 456 HDESK WINAPI OpenInputDesktop( DWORD flags, BOOL inherit, ACCESS_MASK access )
 457 {
 458     FIXME( "(%x,%i,%x): stub\n", flags, inherit, access );
 459     SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
 460     return 0;
 461 }
 462
 463
 464 /***********************************************************************
 465  *              GetUserObjectInformationA   (USER32.@)
 466  */
 467 BOOL WINAPI GetUserObjectInformationA( HANDLE handle, INT index, LPVOID info, DWORD len, LPDWORD needed )
 468 {
 469     /* check for information types returning strings */
 470     if (index == UOI_TYPE || index == UOI_NAME)
 471     {
 472         WCHAR buffer[MAX_PATH];
 473         DWORD lenA;
 474
 475         if (!GetUserObjectInformationW( handle, index, buffer, sizeof(buffer), NULL )) return FALSE;
 476         lenA = WideCharToMultiByte( CP_ACP, 0, buffer, -1, NULL, 0, NULL, NULL );
 477         if (needed) *needed = lenA;
 478         if (lenA > len)
 479         {
 480             SetLastError( ERROR_MORE_DATA );
 481             return FALSE;
 482         }
 483         if (info) WideCharToMultiByte( CP_ACP, 0, buffer, -1, info, len, NULL, NULL );
 484         return TRUE;
 485     }
 486     return GetUserObjectInformationW( handle, index, info, len, needed );
 487 }
 488
 489
 490 /***********************************************************************
 491  *              GetUserObjectInformationW   (USER32.@)
 492  */
 493 BOOL WINAPI GetUserObjectInformationW( HANDLE handle, INT index, LPVOID info, DWORD len, LPDWORD needed )
 494 {
 495     static const WCHAR desktopW[] = { 'D','e','s','k','t','o','p',0 };
 496     static const WCHAR winstationW[] = { 'W','i','n','d','o','w','S','t','a','t','i','o','n',0 };
 497     BOOL ret;
 498
 499     switch(index)
 500     {
 501     case UOI_FLAGS:
 502         {
 503             USEROBJECTFLAGS *obj_flags = info;
 504             if (needed) *needed = sizeof(*obj_flags);
 505             if (len < sizeof(*obj_flags))
 506             {
 507                 SetLastError( ERROR_BUFFER_OVERFLOW );
 508                 return FALSE;
 509             }
 510             SERVER_START_REQ( set_user_object_info )
 511             {
 512                 req->handle    = handle;
 513                 req->flags     = 0;
 514                 ret = !wine_server_call_err( req );
 515                 if (ret)
 516                 {
 517                     /* FIXME: inherit flag */
 518                     obj_flags->dwFlags = reply->old_obj_flags;
 519                 }
 520             }
 521             SERVER_END_REQ;
 522         }
 523         return ret;
 524
 525     case UOI_TYPE:
 526         SERVER_START_REQ( set_user_object_info )
 527         {
 528             req->handle = handle;
 529             req->flags  = 0;
 530             ret = !wine_server_call_err( req );
 531             if (ret)
 532             {
 533                 size_t size = reply->is_desktop ? sizeof(desktopW) : sizeof(winstationW);
 534                 if (needed) *needed = size;
 535                 if (len < size)
 536                 {
 537                     SetLastError( ERROR_MORE_DATA );
 538                     ret = FALSE;
 539                 }
 540                 else memcpy( info, reply->is_desktop ? desktopW : winstationW, size );
 541             }
 542         }
 543         SERVER_END_REQ;
 544         return ret;
 545
 546     case UOI_NAME:
 547         {
 548             WCHAR buffer[MAX_PATH];
 549             SERVER_START_REQ( set_user_object_info )
 550             {
 551                 req->handle = handle;
 552                 req->flags  = 0;
 553                 wine_server_set_reply( req, buffer, sizeof(buffer) - sizeof(WCHAR) );
 554                 ret = !wine_server_call_err( req );
 555                 if (ret)
 556                 {
 557                     size_t size = wine_server_reply_size( reply );
 558                     buffer[size / sizeof(WCHAR)] = 0;
 559                     size += sizeof(WCHAR);
 560                     if (needed) *needed = size;
 561                     if (len < size)
 562                     {
 563                         SetLastError( ERROR_MORE_DATA );
 564                         ret = FALSE;
 565                     }
 566                     else memcpy( info, buffer, size );
 567                 }
 568             }
 569             SERVER_END_REQ;
 570         }
 571         return ret;
 572
 573     case UOI_USER_SID:
 574         FIXME( "not supported index %d\n", index );
 575         /* fall through */
 576     default:
 577         SetLastError( ERROR_INVALID_PARAMETER );
 578         return FALSE;
 579     }
 580 }
 581
 582
 583 /******************************************************************************
 584  *              SetUserObjectInformationA   (USER32.@)
 585  */
 586 BOOL WINAPI SetUserObjectInformationA( HANDLE handle, INT index, LPVOID info, DWORD len )
 587 {
 588     return SetUserObjectInformationW( handle, index, info, len );
 589 }
 590
 591
 592 /******************************************************************************
 593  *              SetUserObjectInformationW   (USER32.@)
 594  */
 595 BOOL WINAPI SetUserObjectInformationW( HANDLE handle, INT index, LPVOID info, DWORD len )
 596 {
 597     BOOL ret;
 598     const USEROBJECTFLAGS *obj_flags = info;
 599
 600     if (index != UOI_FLAGS || !info || len < sizeof(*obj_flags))
 601     {
 602         SetLastError( ERROR_INVALID_PARAMETER );
 603         return FALSE;
 604     }
 605     /* FIXME: inherit flag */
 606     SERVER_START_REQ( set_user_object_info )
 607     {
 608         req->handle    = handle;
 609         req->flags     = SET_USER_OBJECT_FLAGS;
 610         req->obj_flags = obj_flags->dwFlags;
 611         ret = !wine_server_call_err( req );
 612     }
 613     SERVER_END_REQ;
 614     return ret;
 615 }
 616
 617
 618 /***********************************************************************
 619  *              GetUserObjectSecurity   (USER32.@)
 620  */
 621 BOOL WINAPI GetUserObjectSecurity( HANDLE handle, PSECURITY_INFORMATION info,
 622                                    PSECURITY_DESCRIPTOR sid, DWORD len, LPDWORD needed )
 623 {
 624     FIXME( "(%p %p %p len=%d %p),stub!\n", handle, info, sid, len, needed );
 625     return TRUE;
 626 }
 627
 628 /***********************************************************************
 629  *              SetUserObjectSecurity   (USER32.@)
 630  */
 631 BOOL WINAPI SetUserObjectSecurity( HANDLE handle, PSECURITY_INFORMATION info,
 632                                    PSECURITY_DESCRIPTOR sid )
 633 {
 634     FIXME( "(%p,%p,%p),stub!\n", handle, info, sid );
 635     return TRUE;
 636 }