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/*
* chroot() - Change Root Directory
* Author: fernando.ruiz@ctv.es
*
* COPYRIGHT (c) 1989-1999.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.OARcorp.com/rtems/license.html.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems.h>
#include <unistd.h>
#include <errno.h>
#include <rtems/libio_.h>
int chroot(
const char *pathname
)
{
int result;
rtems_filesystem_location_info_t loc;
if (rtems_current_user_env == &rtems_global_user_env)
set_errno_and_return_minus_one( ENOTSUP );
loc = rtems_filesystem_root; /* save the value */
/* if has been already changed */
rtems_filesystem_root = rtems_global_user_env.root_directory;
result = chdir(pathname);
if (result) {
rtems_filesystem_root = loc; /* restore the value */
set_errno_and_return_minus_one( errno );
};
rtems_filesystem_root = rtems_filesystem_current;
result = chdir("/");
if (result) {
rtems_filesystem_root = loc; /* restore the value */
set_errno_and_return_minus_one( errno );
};
/*XXX : Call this? Sorry but I don't known if it is necesary */
/* The old root.
rtems_filesystem_freenode( &loc );
*/
return 0;
}
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