0a4770b44a
Summary:
When the deleted path is a file, the return value of get_errno is -EISDIR, so in Condition Two
(get_errno() ! = EPERM && /* .... . try to remove it. */
rmdir(path) ! = 0)
The judgment holds directly, so it can't actually execute to rmdir
Signed-off-by: chenrun1 <chenrun1@xiaomi.com>
69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
/****************************************************************************
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* libs/libc/stdio/lib_remove.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <stdio.h>
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: remove
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*
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* Description:
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* The remove() function causes the object denoted by path to be removed.
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* The function is equivalent to unlink() or rmdir().
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*
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* Input Parameters:
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* path - A pointer to a file or directory to be removed.
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*
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* Returned Value:
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* 0(OK) on success; -1(ERROR) on failure with errno set appropriately:
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*
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* For returned errno values, see unlink or rmdir.
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*
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****************************************************************************/
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int remove(FAR const char *path)
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{
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/* First try to unlink since this is
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* more frequently the necessary action.
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*/
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if (unlink(path) != 0 && /* If it is indeed a directory... */
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(get_errno() != EISDIR || /* ...try to remove it. */
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rmdir(path) != 0))
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{
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/* Cannot remove the object for whatever reason. */
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return -1;
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}
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return 0;
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}
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