/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @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 & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#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;
}
