blob: 4f68240512eb96a66e6cd870e7f1705559344c0e (
plain) (
tree)
|
|
/*
* getdents() - Get Directory Entries
*
* SVR4 and SVID extension required by Newlib readdir() family.
*
* This routine will dd_len / (sizeof dirent) directory entries relative to
* the current directory position index. These entries will be placed in
* character array pointed to by -dd_buf-
*
* 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.rtems.com/license/LICENSE.
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <rtems/libio_.h>
#include <rtems/seterr.h>
int getdents(
int dd_fd,
char *dd_buf,
int dd_len
)
{
rtems_libio_t *iop;
rtems_filesystem_node_types_t type;
/*
* Get the file control block structure associated with the file descriptor
*/
iop = rtems_libio_iop( dd_fd );
/*
* Make sure we are working on a directory
*/
type = rtems_filesystem_node_type( &iop->pathinfo );
if ( type != RTEMS_FILESYSTEM_DIRECTORY )
rtems_set_errno_and_return_minus_one( ENOTDIR );
/*
* Return the number of bytes that were actually transfered as a result
* of the read attempt.
*/
return (*iop->pathinfo.handlers->read_h)( iop, dd_buf, dd_len );
}
|