nuttx/libs/libc/stdio/lib_remove.c
Xiang Xiao 7aad7eebff libc: Change errno to set_errno and get_errno
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
2023-10-29 17:16:09 +02:00

69 lines
2.3 KiB
C

/****************************************************************************
* libs/libc/stdio/lib_remove.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 <nuttx/config.h>
#include <sys/stat.h>
#include <unistd.h>
#include <stdio.h>
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: remove
*
* Description:
* The remove() function causes the object denoted by path to be removed.
* The function is equivalent to unlink() or rmdir().
*
* Input Parameters:
* path - A pointer to a file or directory to be removed.
*
* Returned Value:
* 0(OK) on success; -1(ERROR) on failure with errno set appropriately:
*
* For returned errno values, see unlink or rmdir.
*
****************************************************************************/
int remove(FAR const char *path)
{
/* First try to unlink since this is
* more frequently the necessary action.
*/
if (unlink(path) != 0 && /* If it is indeed a directory... */
(get_errno() != EPERM || /* ...try to remove it. */
rmdir(path) != 0))
{
/* Cannot remove the object for whatever reason. */
return -1;
}
return 0;
}