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/**
* @file
*
* @brief Get Directory Entries
* @ingroup libcsupport
*/
/*
* COPYRIGHT (c) 1989-2013.
* 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.org/license/LICENSE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <errno.h>
#include <rtems/score/objectimpl.h>
#include <rtems/libio_.h>
#include <rtems/seterr.h>
/*
* Prototypes to avoid warnings
*/
int getdents(
int dd_fd,
char *dd_buf,
int dd_len
);
/**
* 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-
*/
int getdents(
int dd_fd,
char *dd_buf,
int dd_len
)
{
rtems_libio_t *iop;
mode_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_location_type( &iop->pathinfo );
if ( !S_ISDIR( type ) )
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 );
}
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