reactos/lib/kernel32/file/create.c

   1 /*
   2  * COPYRIGHT:       See COPYING in the top level directory
   3  * PROJECT:         ReactOS system libraries
   4  * FILE:            lib/kernel32/file/create.c
   5  * PURPOSE:         Directory functions
   6  * PROGRAMMER:      Ariadne ( ariadne@xs4all.nl)
   7  *                  GetTempFileName is modified from WINE [ Alexandre Juiliard ]
   8  * UPDATE HISTORY:
   9  *                  Created 01/11/98
  10  *                  Removed use of SearchPath (not used by Windows)
  11  */
  12
  13 /* INCLUDES *****************************************************************/
  14
  15 #include <windows.h>
  16 #include <ddk/ntddk.h>
  17 #include <wchar.h>
  18 #include <string.h>
  19
  20 //#define NDEBUG
  21 #include <kernel32/kernel32.h>
  22
  23 /* EXTERNS ******************************************************************/
  24
  25 DWORD STDCALL GetCurrentDriveW(DWORD nBufferLength, PWSTR lpBuffer);
  26
  27 /* FUNCTIONS ****************************************************************/
  28
  29 HANDLE STDCALL CreateFileA(LPCSTR lpFileName,
  30                            DWORD dwDesiredAccess,
  31                            DWORD dwShareMode,
  32                            LPSECURITY_ATTRIBUTES lpSecurityAttributes,
  33                            DWORD dwCreationDisposition,
  34                            DWORD dwFlagsAndAttributes,
  35                            HANDLE hTemplateFile)
  36 {
  37
  38    WCHAR FileNameW[MAX_PATH];
  39    ULONG i = 0;
  40
  41    DPRINT("CreateFileA(lpFileName %s)\n",lpFileName);
  42
  43    while ((*lpFileName)!=0 && i < MAX_PATH)
  44      {
  45         FileNameW[i] = *lpFileName;
  46         lpFileName++;
  47         i++;
  48      }
  49    FileNameW[i] = 0;
  50
  51    return CreateFileW(FileNameW,dwDesiredAccess,
  52                       dwShareMode,
  53                       lpSecurityAttributes,
  54                       dwCreationDisposition,
  55                       dwFlagsAndAttributes,
  56                       hTemplateFile);
  57 }
  58
  59
  60 HANDLE STDCALL CreateFileW(LPCWSTR lpFileName,
  61                            DWORD dwDesiredAccess,
  62                            DWORD dwShareMode,
  63                            LPSECURITY_ATTRIBUTES lpSecurityAttributes,
  64                            DWORD dwCreationDisposition,
  65                            DWORD dwFlagsAndAttributes,
  66                            HANDLE hTemplateFile)
  67 {
  68    HANDLE FileHandle;
  69    NTSTATUS Status;
  70    OBJECT_ATTRIBUTES ObjectAttributes;
  71    IO_STATUS_BLOCK IoStatusBlock;
  72    UNICODE_STRING FileNameString;
  73    ULONG Flags = 0;
  74    WCHAR PathNameW[MAX_PATH];
  75    WCHAR FileNameW[MAX_PATH];
  76    WCHAR *FilePart;
  77    UINT Len = 0;
  78
  79    switch (dwCreationDisposition)
  80      {
  81       case CREATE_NEW:
  82         dwCreationDisposition = FILE_CREATE;
  83         break;
  84
  85       case CREATE_ALWAYS:
  86         dwCreationDisposition = FILE_OVERWRITE_IF;
  87         break;
  88
  89       case OPEN_EXISTING:
  90         dwCreationDisposition = FILE_OPEN;
  91         break;
  92
  93       case OPEN_ALWAYS:
  94         dwCreationDisposition = OPEN_ALWAYS;
  95         break;
  96
  97       case TRUNCATE_EXISTING:
  98         dwCreationDisposition = FILE_OVERWRITE;
  99      }
 100
 101    DPRINT("CreateFileW(lpFileName %w)\n",lpFileName);
 102
 103    if (!(dwFlagsAndAttributes & FILE_FLAG_OVERLAPPED))
 104      {
 105         Flags |= FILE_SYNCHRONOUS_IO_ALERT;
 106      }
 107
 108    if (lpFileName[1] == (WCHAR)':')
 109      {
 110         wcscpy(PathNameW, lpFileName);
 111      }
 112    else if (wcslen(lpFileName) > 4 &&
 113             lpFileName[0] == (WCHAR)'\\' &&
 114             lpFileName[1] == (WCHAR)'\\' &&
 115             lpFileName[2] == (WCHAR)'.' &&
 116             lpFileName[3] == (WCHAR)'\\')
 117      {
 118         wcscpy(PathNameW, lpFileName);
 119      }
 120    else if (lpFileName[0] == (WCHAR)'\\')
 121      {
 122         GetCurrentDriveW(MAX_PATH,PathNameW);
 123         wcscat(PathNameW, lpFileName);
 124      }
 125    else
 126      {
 127         Len =  GetCurrentDirectoryW(MAX_PATH,PathNameW);
 128         if ( Len == 0 )
 129           return NULL;
 130         if ( PathNameW[Len-1] != L'\\' ) {
 131            PathNameW[Len] = L'\\';
 132            PathNameW[Len+1] = 0;
 133         }
 134         wcscat(PathNameW,lpFileName);
 135      }
 136
 137    FileNameW[0] = '\\';
 138    FileNameW[1] = '?';
 139    FileNameW[2] = '?';
 140    FileNameW[3] = '\\';
 141    FileNameW[4] = 0;
 142    wcscat(FileNameW,PathNameW);
 143
 144    FileNameString.Length = wcslen( FileNameW)*sizeof(WCHAR);
 145
 146    if ( FileNameString.Length == 0 )
 147         return NULL;
 148
 149    if ( FileNameString.Length > MAX_PATH*sizeof(WCHAR) )
 150         return NULL;
 151
 152    FileNameString.Buffer = (WCHAR *)FileNameW;
 153    FileNameString.MaximumLength = FileNameString.Length + sizeof(WCHAR);
 154
 155    ObjectAttributes.Length = sizeof(OBJECT_ATTRIBUTES);
 156    ObjectAttributes.RootDirectory = NULL;
 157    ObjectAttributes.ObjectName = &FileNameString;
 158    ObjectAttributes.Attributes = OBJ_CASE_INSENSITIVE;
 159    ObjectAttributes.SecurityDescriptor = NULL;
 160    ObjectAttributes.SecurityQualityOfService = NULL;
 161
 162    DPRINT("File Name %w\n",FileNameW);
 163
 164    Status = ZwCreateFile(&FileHandle,
 165                          dwDesiredAccess,
 166                          &ObjectAttributes,
 167                          &IoStatusBlock,
 168                          NULL,
 169                          dwFlagsAndAttributes,
 170                          dwShareMode,
 171                          dwCreationDisposition,
 172                          Flags,
 173                          NULL,
 174                          0);
 175    if (!NT_SUCCESS(Status))
 176    {
 177         SetLastError(RtlNtStatusToDosError(Status));
 178         return INVALID_HANDLE_VALUE;
 179    }
 180    return(FileHandle);
 181 }
 182