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/*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/seterr.h>
#include <fcntl.h>
#include <assert.h>
#include "devfs.h"
/**
* The following defines the device-only filesystem operating
* handlers.
*/
extern rtems_filesystem_operations_table devFS_ops;
/**
* The following defines the device-only filesystem operating
* handlers.
*/
extern rtems_filesystem_file_handlers_r devFS_file_handlers;
int devFS_evaluate_path(
const char *pathname,
size_t pathnamelen,
int flags,
rtems_filesystem_location_info_t *pathloc
)
{
int i;
rtems_device_name_t *device_name_table;
/* see if 'flags' is valid */
if ( !rtems_libio_is_valid_perms( flags ) )
rtems_set_errno_and_return_minus_one( EPERM );
/* get the device name table */
device_name_table = (rtems_device_name_t *)pathloc->node_access;
if (!device_name_table)
rtems_set_errno_and_return_minus_one( EFAULT );
for (i = 0; i < rtems_device_table_size; i++) {
if (!device_name_table[i].device_name)
continue;
if (strncmp(pathname, device_name_table[i].device_name, pathnamelen) != 0)
continue;
if (device_name_table[i].device_name[pathnamelen] != '\0')
continue;
/* find the device, set proper values */
pathloc->node_access = (void *)&device_name_table[i];
pathloc->handlers = &devFS_file_handlers;
pathloc->ops = &devFS_ops;
pathloc->mt_entry = rtems_filesystem_root.mt_entry;
return 0;
}
/* no such file or directory */
rtems_set_errno_and_return_minus_one( ENOENT );
}
int devFS_evaluate_for_make(
const char *path,
rtems_filesystem_location_info_t *pathloc,
const char **name
)
{
/* we do nothing, just set name to path */
*name = path;
return 0;
}
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