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/**
* @file
*
* @ingroup libio Internal Interface
*
* @brief POSIX 1003.1b - 5.2.1 - Change Current Working Directory
*/
/*
* COPYRIGHT (c) 1989-2010.
* On-Line Applications Research Corporation (OAR).
*
* Modifications to support reference counting in the file system are
* Copyright (c) 2012 embedded brains GmbH.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <unistd.h>
#include <rtems/libio_.h>
int rtems_filesystem_chdir( rtems_filesystem_location_info_t *loc )
{
int rv = 0;
rtems_filesystem_global_location_t *global_loc =
rtems_filesystem_location_transform_to_global( loc );
mode_t type = rtems_filesystem_location_type( &global_loc->location );
if ( S_ISDIR( type ) ) {
rtems_filesystem_global_location_assign(
&rtems_filesystem_current,
global_loc
);
} else {
rtems_filesystem_location_error( &global_loc->location, ENOTDIR );
rtems_filesystem_global_location_release( global_loc, true );
rv = -1;
}
return rv;
}
int chdir( const char *path )
{
int rv = 0;
rtems_filesystem_eval_path_context_t ctx;
int eval_flags = RTEMS_FS_PERMS_EXEC
| RTEMS_FS_FOLLOW_LINK;
rtems_filesystem_location_info_t pathloc;
rtems_filesystem_eval_path_start( &ctx, path, eval_flags );
rtems_filesystem_eval_path_extract_currentloc( &ctx, &pathloc );
rv = rtems_filesystem_chdir( &pathloc );
rtems_filesystem_eval_path_cleanup( &ctx );
return rv;
}
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