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/*
* rtems_filesystem_evaluate_path()
*
* Routine to seed the evaluate path routine.
*
* 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 <rtems/libio_.h>
int rtems_filesystem_evaluate_path(
const char *pathname,
int flags,
rtems_filesystem_location_info_t *pathloc,
int follow_link
)
{
int i;
int result;
rtems_filesystem_node_types_t type;
/*
* Verify Input parameters.
*/
if ( !pathname )
set_errno_and_return_minus_one( EFAULT );
if ( !pathloc )
set_errno_and_return_minus_one( EIO ); /* should never happen */
/*
* Evaluate the path using the optable evalpath.
*/
rtems_filesystem_get_start_loc( pathname, &i, pathloc );
if ( !pathloc->ops->evalpath_h )
set_errno_and_return_minus_one( ENOTSUP );
result = (*pathloc->ops->evalpath_h)( &pathname[i], flags, pathloc );
/*
* Get the Node type and determine if you need to follow the link or
* not.
*/
if ( (result == 0) && follow_link ) {
if ( !pathloc->ops->node_type_h )
set_errno_and_return_minus_one( ENOTSUP );
type = (*pathloc->ops->node_type_h)( pathloc );
if ( ( type == RTEMS_FILESYSTEM_HARD_LINK ) ||
( type == RTEMS_FILESYSTEM_SYM_LINK ) ) {
if ( !pathloc->ops->eval_link_h )
set_errno_and_return_minus_one( ENOTSUP );
result = (*pathloc->ops->eval_link_h)( pathloc, flags );
}
}
return result;
}
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