* libs/libc/dirent/lib_telldir.c
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
* Included Files
****************************************************************************/
#include <dirent.h>
#include <unistd.h>
#include <errno.h>
* Private Functions
****************************************************************************/
* Public Functions
****************************************************************************/
* Name: telldir
*
* Description:
* The telldir() function returns the current location
* associated with the directory stream dirp.
*
* Input Parameters:
* dirp -- An instance of type DIR created by a previous
* call to opendir();
*
* Returned Value:
* On success, the telldir() function returns the current
* location in the directory stream. On error, -1 is
* returned, and errno is set appropriately.
*
* EBADF - Invalid directory stream descriptor dir
*
****************************************************************************/
off_t telldir(FAR DIR *dirp)
{
if (dirp != NULL)
{
return lseek(dirp->fd, 0, SEEK_CUR);
}
set_errno(EBADF);
return -1;
}