incubator-nuttx/libs/libc/unistd/lib_fstatvfs.c

74 lines
2.5 KiB
C

/****************************************************************************
* libs/libc/unistd/lib_fstatvfs.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 <sys/statfs.h>
#include <sys/statvfs.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: fstatvfs
*
* Description:
* The fstatvfs() function shall obtain information about the file system
* containing the file referenced by fd.
*
* the buf argument is a pointer to a statvfs structure that shall be
* filled. Read, write, or execute permission of the named file is not
* required.
*
* Returned Value:
* Upon successful completion, statvfs() shall return 0. Otherwise, it
* shall return -1 and set errno to indicate the error.
*
****************************************************************************/
int fstatvfs(int fd, FAR struct statvfs *buf)
{
struct statfs tmp;
int ret;
ret = fstatfs(fd, &tmp);
if (ret < 0)
{
return ret;
}
buf->f_bsize = tmp.f_bsize;
buf->f_frsize = tmp.f_bsize;
buf->f_blocks = tmp.f_blocks;
buf->f_bfree = tmp.f_bfree;
buf->f_bavail = tmp.f_bavail;
buf->f_files = tmp.f_files;
buf->f_ffree = tmp.f_ffree;
buf->f_favail = tmp.f_ffree;
buf->f_fsid = 0;
buf->f_flag = 0;
buf->f_namemax = tmp.f_namelen;
return ret;
}