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