sdk/lib/crt/direct/chdrive.c

   1 /*
   2  * COPYRIGHT:   See COPYING in the top level directory
   3  * PROJECT:     ReactOS system libraries
   4  * FILE:        lib/sdk/crt/direct/chdrive.c
   5  * PURPOSE:     Change the current drive.
   6  * PROGRAMER:   WINE
   7  * UPDATE HISTORY:
   8  *              25/11/05: Added license header
   9  */
  10
  11 #include <precomp.h>
  12
  13 /*
  14  * @implemented
  15  *
  16  *    _chdrive (MSVCRT.@)
  17  *
  18  * Change the current drive.
  19  *
  20  * PARAMS
  21  *  newdrive [I] Drive number to change to (1 = 'A', 2 = 'B', ...)
  22  *
  23  * RETURNS
  24  *  Success: 0. The current drive is set to newdrive.
  25  *  Failure: -1. errno indicates the error.
  26  *
  27  * NOTES
  28  *  See SetCurrentDirectoryA.
  29  */
  30 int _chdrive(int newdrive)
  31 {
  32   WCHAR buffer[] = L"A:";
  33
  34   buffer[0] += newdrive - 1;
  35   if (!SetCurrentDirectoryW( buffer ))
  36   {
  37     _dosmaperr(GetLastError());
  38     if (newdrive <= 0)
  39     {
  40       _set_errno(EACCES);
  41     }
  42     return -1;
  43   }
  44   return 0;
  45 }