incubator-nuttx/libs/libc/dirent/lib_rewinddir.c

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/****************************************************************************
* libs/libc/dirent/lib_rewinddir.c
*
* 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 <errno.h>
#include <unistd.h>
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: rewinddir
*
* Description:
* The rewinddir() function resets the position of the
* directory stream dir to the beginning of the directory.
*
* Input Parameters:
* dirp -- An instance of type DIR created by a previous
* call to opendir();
*
* Returned Value:
* None
*
****************************************************************************/
void rewinddir(FAR DIR *dirp)
{
if (dirp != NULL)
{
lseek(dirp->fd, 0, SEEK_SET);
}
else
{
set_errno(EBADF);
}
}