dlls/ntdll/directory.c

   1 /*
   2  * NTDLL directory functions
   3  *
   4  * Copyright 1993 Erik Bos
   5  * Copyright 2003 Eric Pouech
   6  * Copyright 1996, 2004 Alexandre Julliard
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #include <assert.h>
  24 #include <sys/types.h>
  25 #include <fcntl.h>
  26 #include <stdarg.h>
  27 #include <string.h>
  28 #include <stdlib.h>
  29 #include <stdio.h>
  30
  31 #include "ntstatus.h"
  32 #define WIN32_NO_STATUS
  33 #define NONAMELESSUNION
  34 #include "windef.h"
  35 #include "winnt.h"
  36 #include "winternl.h"
  37 #include "ddk/wdm.h"
  38 #include "ntdll_misc.h"
  39 #include "wine/list.h"
  40 #include "wine/debug.h"
  41 #include "wine/exception.h"
  42
  43
  44 /******************************************************************
  45  *              RtlWow64EnableFsRedirection   (NTDLL.@)
  46  */
  47 NTSTATUS WINAPI RtlWow64EnableFsRedirection( BOOLEAN enable )
  48 {
  49     if (!NtCurrentTeb64()) return STATUS_NOT_IMPLEMENTED;
  50     NtCurrentTeb64()->TlsSlots[WOW64_TLS_FILESYSREDIR] = !enable;
  51     return STATUS_SUCCESS;
  52 }
  53
  54
  55 /******************************************************************
  56  *              RtlWow64EnableFsRedirectionEx   (NTDLL.@)
  57  */
  58 NTSTATUS WINAPI RtlWow64EnableFsRedirectionEx( ULONG disable, ULONG *old_value )
  59 {
  60     if (!NtCurrentTeb64()) return STATUS_NOT_IMPLEMENTED;
  61
  62     __TRY
  63     {
  64         *old_value = NtCurrentTeb64()->TlsSlots[WOW64_TLS_FILESYSREDIR];
  65     }
  66     __EXCEPT_PAGE_FAULT
  67     {
  68         return STATUS_ACCESS_VIOLATION;
  69     }
  70     __ENDTRY
  71
  72     NtCurrentTeb64()->TlsSlots[WOW64_TLS_FILESYSREDIR] = disable;
  73     return STATUS_SUCCESS;
  74 }
  75
  76
  77 /******************************************************************
  78  *              RtlDoesFileExists_U   (NTDLL.@)
  79  */
  80 BOOLEAN WINAPI RtlDoesFileExists_U(LPCWSTR file_name)
  81 {
  82     UNICODE_STRING nt_name;
  83     FILE_BASIC_INFORMATION basic_info;
  84     OBJECT_ATTRIBUTES attr;
  85     BOOLEAN ret;
  86
  87     if (!RtlDosPathNameToNtPathName_U( file_name, &nt_name, NULL, NULL )) return FALSE;
  88
  89     attr.Length = sizeof(attr);
  90     attr.RootDirectory = 0;
  91     attr.ObjectName = &nt_name;
  92     attr.Attributes = OBJ_CASE_INSENSITIVE;
  93     attr.SecurityDescriptor = NULL;
  94     attr.SecurityQualityOfService = NULL;
  95
  96     ret = NtQueryAttributesFile(&attr, &basic_info) == STATUS_SUCCESS;
  97
  98     RtlFreeUnicodeString( &nt_name );
  99     return ret;
 100 }