lib/kernel32/file/delete.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS system libraries
   5  * FILE:            lib/kernel32/file/delete.c
   6  * PURPOSE:         Deleting files
   7  * PROGRAMMER:      Ariadne (ariadne@xs4all.nl)
   8  * UPDATE HISTORY:
   9  *                  Created 01/11/98
  10  */
  11
  12 /* INCLUDES ****************************************************************/
  13
  14 #include <k32.h>
  15
  16 #define NDEBUG
  17 #include <kernel32/kernel32.h>
  18
  19
  20 /* FUNCTIONS ****************************************************************/
  21
  22 WINBOOL
  23 STDCALL
  24 DeleteFileA (
  25         LPCSTR  lpFileName
  26         )
  27 {
  28         UNICODE_STRING FileNameU;
  29         ANSI_STRING FileName;
  30         WINBOOL Result;
  31
  32         RtlInitAnsiString (&FileName,
  33                            (LPSTR)lpFileName);
  34
  35         /* convert ansi (or oem) string to unicode */
  36         if (bIsFileApiAnsi)
  37                 RtlAnsiStringToUnicodeString (&FileNameU,
  38                                               &FileName,
  39                                               TRUE);
  40         else
  41                 RtlOemStringToUnicodeString (&FileNameU,
  42                                              &FileName,
  43                                              TRUE);
  44
  45         Result = DeleteFileW (FileNameU.Buffer);
  46
  47         RtlFreeHeap (RtlGetProcessHeap (),
  48                      0,
  49                      FileNameU.Buffer);
  50
  51         return Result;
  52 }
  53
  54
  55 WINBOOL
  56 STDCALL
  57 DeleteFileW (
  58         LPCWSTR lpFileName
  59         )
  60 {
  61         FILE_DISPOSITION_INFORMATION FileDispInfo;
  62         OBJECT_ATTRIBUTES ObjectAttributes;
  63         IO_STATUS_BLOCK IoStatusBlock;
  64         UNICODE_STRING NtPathU;
  65         HANDLE FileHandle;
  66         NTSTATUS Status;
  67
  68         DPRINT("DeleteFileW (lpFileName %S)\n",lpFileName);
  69
  70         if (!RtlDosPathNameToNtPathName_U ((LPWSTR)lpFileName,
  71                                            &NtPathU,
  72                                            NULL,
  73                                            NULL))
  74                 return FALSE;
  75
  76         DPRINT("NtPathU \'%wZ\'\n", &NtPathU);
  77
  78         ObjectAttributes.Length = sizeof(OBJECT_ATTRIBUTES);
  79         ObjectAttributes.RootDirectory = NULL;
  80         ObjectAttributes.ObjectName = &NtPathU;
  81         ObjectAttributes.Attributes = OBJ_CASE_INSENSITIVE| OBJ_INHERIT;
  82         ObjectAttributes.SecurityDescriptor = NULL;
  83         ObjectAttributes.SecurityQualityOfService = NULL;
  84
  85         Status = NtCreateFile (&FileHandle,
  86                                FILE_WRITE_ATTRIBUTES,
  87                                &ObjectAttributes,
  88                                &IoStatusBlock,
  89                                NULL,
  90                                FILE_ATTRIBUTE_NORMAL,
  91                                0,
  92                                FILE_OPEN,
  93                                FILE_NON_DIRECTORY_FILE,
  94                                NULL,
  95                                0);
  96
  97         RtlFreeUnicodeString(&NtPathU);
  98
  99         if (!NT_SUCCESS(Status))
 100         {
 101                 CHECKPOINT;
 102                 SetLastErrorByStatus (Status);
 103                 return FALSE;
 104         }
 105
 106         FileDispInfo.DoDeleteFile = TRUE;
 107
 108         Status = NtSetInformationFile (FileHandle,
 109                                        &IoStatusBlock,
 110                                        &FileDispInfo,
 111                                        sizeof(FILE_DISPOSITION_INFORMATION),
 112                                        FileDispositionInformation);
 113         if (!NT_SUCCESS(Status))
 114         {
 115                 CHECKPOINT;
 116                 NtClose (FileHandle);
 117                 SetLastErrorByStatus (Status);
 118                 return FALSE;
 119         }
 120
 121         Status = NtClose (FileHandle);
 122         if (!NT_SUCCESS (Status))
 123         {
 124                 CHECKPOINT;
 125                 SetLastErrorByStatus (Status);
 126                 return FALSE;
 127         }
 128
 129         return TRUE;
 130 }
 131
 132 /* EOF */