reactos/lib/kernel32/file/create.c

   1 /* $Id: create.c,v 1.22 2001/09/09 12:21:37 hbirr 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 #include <kernel32/error.h>
  23
  24
  25 /* FUNCTIONS ****************************************************************/
  26
  27 HANDLE STDCALL CreateFileA (LPCSTR                      lpFileName,
  28                             DWORD                       dwDesiredAccess,
  29                             DWORD                       dwShareMode,
  30                             LPSECURITY_ATTRIBUTES       lpSecurityAttributes,
  31                             DWORD                       dwCreationDisposition,
  32                             DWORD                       dwFlagsAndAttributes,
  33                             HANDLE                      hTemplateFile)
  34 {
  35    UNICODE_STRING FileNameU;
  36    ANSI_STRING FileName;
  37    HANDLE FileHandle;
  38
  39    DPRINT("CreateFileA(lpFileName %s)\n",lpFileName);
  40
  41    RtlInitAnsiString (&FileName,
  42                       (LPSTR)lpFileName);
  43
  44    /* convert ansi (or oem) string to unicode */
  45    if (bIsFileApiAnsi)
  46      RtlAnsiStringToUnicodeString (&FileNameU,
  47                                    &FileName,
  48                                    TRUE);
  49    else
  50      RtlOemStringToUnicodeString (&FileNameU,
  51                                   &FileName,
  52                                   TRUE);
  53
  54    FileHandle = CreateFileW (FileNameU.Buffer,
  55                              dwDesiredAccess,
  56                              dwShareMode,
  57                              lpSecurityAttributes,
  58                              dwCreationDisposition,
  59                              dwFlagsAndAttributes,
  60                              hTemplateFile);
  61
  62    RtlFreeHeap (RtlGetProcessHeap (),
  63                 0,
  64                 FileNameU.Buffer);
  65
  66    return FileHandle;
  67 }
  68
  69
  70 HANDLE STDCALL CreateFileW (LPCWSTR                     lpFileName,
  71                             DWORD                       dwDesiredAccess,
  72                             DWORD                       dwShareMode,
  73                             LPSECURITY_ATTRIBUTES       lpSecurityAttributes,
  74                             DWORD                       dwCreationDisposition,
  75                             DWORD                       dwFlagsAndAttributes,
  76                             HANDLE                      hTemplateFile)
  77 {
  78    OBJECT_ATTRIBUTES ObjectAttributes;
  79    IO_STATUS_BLOCK IoStatusBlock;
  80    UNICODE_STRING NtPathU;
  81    HANDLE FileHandle;
  82    NTSTATUS Status;
  83    ULONG Flags = 0;
  84
  85    switch (dwCreationDisposition)
  86      {
  87       case CREATE_NEW:
  88         dwCreationDisposition = FILE_CREATE;
  89         break;
  90
  91       case CREATE_ALWAYS:
  92         dwCreationDisposition = FILE_OVERWRITE_IF;
  93         break;
  94
  95       case OPEN_EXISTING:
  96         dwCreationDisposition = FILE_OPEN;
  97         break;
  98
  99       case OPEN_ALWAYS:
 100         dwCreationDisposition = OPEN_ALWAYS;
 101         break;
 102
 103       case TRUNCATE_EXISTING:
 104         dwCreationDisposition = FILE_OVERWRITE;
 105      }
 106
 107    DPRINT("CreateFileW(lpFileName %S)\n",lpFileName);
 108
 109    if (dwDesiredAccess & GENERIC_READ)
 110      dwDesiredAccess |= FILE_GENERIC_READ;
 111
 112    if (dwDesiredAccess & GENERIC_WRITE)
 113      dwDesiredAccess |= FILE_GENERIC_WRITE;
 114
 115    if (!(dwFlagsAndAttributes & FILE_FLAG_OVERLAPPED))
 116      {
 117         Flags |= FILE_SYNCHRONOUS_IO_ALERT;
 118      }
 119
 120    if (!RtlDosPathNameToNtPathName_U ((LPWSTR)lpFileName,
 121                                       &NtPathU,
 122                                       NULL,
 123                                       NULL))
 124      return INVALID_HANDLE_VALUE;
 125
 126    DPRINT("NtPathU \'%S\'\n", NtPathU.Buffer);
 127
 128    ObjectAttributes.Length = sizeof(OBJECT_ATTRIBUTES);
 129    ObjectAttributes.RootDirectory = NULL;
 130    ObjectAttributes.ObjectName = &NtPathU;
 131    ObjectAttributes.Attributes = OBJ_CASE_INSENSITIVE;
 132    ObjectAttributes.SecurityDescriptor = NULL;
 133    ObjectAttributes.SecurityQualityOfService = NULL;
 134
 135    Status = NtCreateFile (&FileHandle,
 136                           dwDesiredAccess,
 137                           &ObjectAttributes,
 138                           &IoStatusBlock,
 139                           NULL,
 140                           dwFlagsAndAttributes,
 141                           dwShareMode,
 142                           dwCreationDisposition,
 143                           Flags,
 144                           NULL,
 145                           0);
 146    if (!NT_SUCCESS(Status))
 147      {
 148         SetLastErrorByStatus (Status);
 149         return INVALID_HANDLE_VALUE;
 150      }
 151
 152    return FileHandle;
 153 }
 154
 155 /* EOF */