reactos/lib/sdk/crt/direct/chdrive.c

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/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS system libraries
* FILE: lib/crt/chdrive.c
* PURPOSE: Change the current drive.
* PROGRAMER: WINE
* UPDATE HISTORY:
* 25/11/05: Added license header
*/
#include <precomp.h>
/*
* @implemented
*
* _chdrive (MSVCRT.@)
*
* Change the current drive.
*
* PARAMS
* newdrive [I] Drive number to change to (1 = 'A', 2 = 'B', ...)
*
* RETURNS
* Success: 0. The current drive is set to newdrive.
* Failure: -1. errno indicates the error.
*
* NOTES
* See SetCurrentDirectoryA.
*/
int _chdrive(int newdrive)
{
WCHAR buffer[] = L"A:";
buffer[0] += newdrive - 1;
if (!SetCurrentDirectoryW( buffer ))
{
_dosmaperr(GetLastError());
if (newdrive <= 0)
{
_set_errno(EACCES);
}
return -1;
}
return 0;
}