sdk/lib/3rdparty/libwine/path.c

   1 /* Copyright 1993 Erik Bos
   2  * Copyright 1996, 2004 Alexandre Julliard
   3  * Copyright 2003 Eric Pouech
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  *
  19  */
  20
  21 #include <windef.h>
  22 #include <winbase.h>
  23 #include <winnls.h>
  24
  25 #include <wine/winternl.h>
  26
  27 #include <wine/debug.h>
  28 WINE_DEFAULT_DEBUG_CHANNEL(path);
  29
  30 static inline BOOL set_ntstatus( NTSTATUS status )
  31 {
  32     if (status) SetLastError( RtlNtStatusToDosError( status ));
  33     return !status;
  34 }
  35
  36 /***********************************************************************
  37  *           wine_get_dos_file_name (KERNEL32.@) Not a Windows API
  38  *
  39  * Return the full DOS file name for a given Unix path.
  40  * Returned buffer must be freed by caller.
  41  */
  42 WCHAR * CDECL wine_get_dos_file_name( LPCSTR str )
  43 {
  44     UNICODE_STRING nt_name;
  45     NTSTATUS status;
  46     WCHAR *buffer;
  47     SIZE_T len = strlen(str) + 1;
  48
  49     if (str[0] != '/')  /* relative path name */
  50     {
  51         if (!(buffer = RtlAllocateHeap( GetProcessHeap(), 0, len * sizeof(WCHAR) ))) return NULL;
  52         MultiByteToWideChar( CP_UNIXCP, 0, str, len, buffer, len );
  53         status = RtlDosPathNameToNtPathName_U_WithStatus( buffer, &nt_name, NULL, NULL );
  54         RtlFreeHeap( GetProcessHeap(), 0, buffer );
  55         if (!set_ntstatus( status )) return NULL;
  56         buffer = nt_name.Buffer;
  57         len = nt_name.Length / sizeof(WCHAR) + 1;
  58     }
  59     else
  60     {
  61 #ifdef __REACTOS__
  62         ERR("Got absolute UNIX path name in function wine_get_dos_file_name. This is not UNIX. Please fix the caller!\n");
  63         ERR("File name: %s\n", str);
  64         /* Return empty path */
  65         return RtlAllocateHeap(GetProcessHeap(), HEAP_ZERO_MEMORY, 1 * sizeof(UNICODE_NULL));
  66 #else
  67         len += 8;  /* \??\unix prefix */
  68         if (!(buffer = HeapAlloc( GetProcessHeap(), 0, len * sizeof(WCHAR) ))) return NULL;
  69         if (!set_ntstatus( wine_unix_to_nt_file_name( str, buffer, &len )))
  70         {
  71             HeapFree( GetProcessHeap(), 0, buffer );
  72             return NULL;
  73         }
  74 #endif
  75     }
  76     if (buffer[5] == ':')
  77     {
  78         /* get rid of the \??\ prefix */
  79         /* FIXME: should implement RtlNtPathNameToDosPathName and use that instead */
  80         memmove( buffer, buffer + 4, (len - 4) * sizeof(WCHAR) );
  81     }
  82     else buffer[1] = '\\';
  83     return buffer;
  84 }