reactos/lib/kernel32/file/create.c

   1 /* $Id: create.c,v 1.19 2000/03/14 23:09:23 ekohl Exp $
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS system libraries
   5  * FILE:            lib/kernel32/file/create.c
   6  * PURPOSE:         Directory functions
   7  * PROGRAMMER:      Ariadne ( ariadne@xs4all.nl)
   8  *                  GetTempFileName is modified from WINE [ Alexandre Juiliard ]
   9  * UPDATE HISTORY:
  10  *                  Created 01/11/98
  11  *                  Removed use of SearchPath (not used by Windows)
  12  */
  13
  14 /* INCLUDES *****************************************************************/
  15
  16 #include <ddk/ntddk.h>
  17 #include <ntdll/rtl.h>
  18 #include <windows.h>
  19
  20 #define NDEBUG
  21 #include <kernel32/kernel32.h>
  22
  23
  24 /* FUNCTIONS ****************************************************************/
  25
  26 HANDLE
  27 STDCALL
  28 CreateFileA (
  29         LPCSTR                  lpFileName,
  30         DWORD                   dwDesiredAccess,
  31         DWORD                   dwShareMode,
  32         LPSECURITY_ATTRIBUTES   lpSecurityAttributes,
  33         DWORD                   dwCreationDisposition,
  34         DWORD                   dwFlagsAndAttributes,
  35         HANDLE                  hTemplateFile
  36         )
  37 {
  38         UNICODE_STRING FileNameU;
  39         ANSI_STRING FileName;
  40         HANDLE FileHandle;
  41
  42         DPRINT("CreateFileA(lpFileName %s)\n",lpFileName);
  43
  44         RtlInitAnsiString (&FileName,
  45                            (LPSTR)lpFileName);
  46
  47         /* convert ansi (or oem) string to unicode */
  48         if (bIsFileApiAnsi)
  49                 RtlAnsiStringToUnicodeString (&FileNameU,
  50                                               &FileName,
  51                                               TRUE);
  52         else
  53                 RtlOemStringToUnicodeString (&FileNameU,
  54                                              &FileName,
  55                                              TRUE);
  56
  57         FileHandle = CreateFileW (FileNameU.Buffer,
  58                                   dwDesiredAccess,
  59                                   dwShareMode,
  60                                   lpSecurityAttributes,
  61                                   dwCreationDisposition,
  62                                   dwFlagsAndAttributes,
  63                                   hTemplateFile);
  64
  65         RtlFreeHeap (RtlGetProcessHeap (),
  66                      0,
  67                      FileNameU.Buffer);
  68
  69         return FileHandle;
  70 }
  71
  72
  73 HANDLE
  74 STDCALL
  75 CreateFileW (
  76         LPCWSTR                 lpFileName,
  77         DWORD                   dwDesiredAccess,
  78         DWORD                   dwShareMode,
  79         LPSECURITY_ATTRIBUTES   lpSecurityAttributes,
  80         DWORD                   dwCreationDisposition,
  81         DWORD                   dwFlagsAndAttributes,
  82         HANDLE                  hTemplateFile
  83         )
  84 {
  85         OBJECT_ATTRIBUTES ObjectAttributes;
  86         IO_STATUS_BLOCK IoStatusBlock;
  87         UNICODE_STRING NtPathU;
  88         HANDLE FileHandle;
  89         NTSTATUS Status;
  90         ULONG Flags = 0;
  91
  92         switch (dwCreationDisposition)
  93         {
  94                 case CREATE_NEW:
  95                         dwCreationDisposition = FILE_CREATE;
  96                         break;
  97
  98                 case CREATE_ALWAYS:
  99                         dwCreationDisposition = FILE_OVERWRITE_IF;
 100                         break;
 101
 102                 case OPEN_EXISTING:
 103                         dwCreationDisposition = FILE_OPEN;
 104                         break;
 105
 106                 case OPEN_ALWAYS:
 107                         dwCreationDisposition = OPEN_ALWAYS;
 108                         break;
 109
 110                 case TRUNCATE_EXISTING:
 111                         dwCreationDisposition = FILE_OVERWRITE;
 112         }
 113
 114         DPRINT("CreateFileW(lpFileName %S)\n",lpFileName);
 115
 116         if (dwDesiredAccess & GENERIC_READ)
 117                 dwDesiredAccess |= FILE_GENERIC_READ;
 118
 119         if (dwDesiredAccess & GENERIC_WRITE)
 120                 dwDesiredAccess |= FILE_GENERIC_WRITE;
 121
 122         if (!(dwFlagsAndAttributes & FILE_FLAG_OVERLAPPED))
 123         {
 124                 Flags |= FILE_SYNCHRONOUS_IO_ALERT;
 125         }
 126
 127         if (!RtlDosPathNameToNtPathName_U ((LPWSTR)lpFileName,
 128                                            &NtPathU,
 129                                            NULL,
 130                                            NULL))
 131                 return FALSE;
 132
 133         DPRINT("NtPathU \'%S\'\n", NtPathU.Buffer);
 134
 135         ObjectAttributes.Length = sizeof(OBJECT_ATTRIBUTES);
 136         ObjectAttributes.RootDirectory = NULL;
 137         ObjectAttributes.ObjectName = &NtPathU;
 138         ObjectAttributes.Attributes = OBJ_CASE_INSENSITIVE;
 139         ObjectAttributes.SecurityDescriptor = NULL;
 140         ObjectAttributes.SecurityQualityOfService = NULL;
 141
 142         Status = NtCreateFile (&FileHandle,
 143                                dwDesiredAccess,
 144                                &ObjectAttributes,
 145                                &IoStatusBlock,
 146                                NULL,
 147                                dwFlagsAndAttributes,
 148                                dwShareMode,
 149                                dwCreationDisposition,
 150                                Flags,
 151                                NULL,
 152                                0);
 153         if (!NT_SUCCESS(Status))
 154         {
 155                 SetLastError (RtlNtStatusToDosError (Status));
 156                 return INVALID_HANDLE_VALUE;
 157         }
 158
 159         return FileHandle;
 160 }
 161
 162 /* EOF */