62 lines
2.1 KiB
C
62 lines
2.1 KiB
C
/****************************************************************************
|
|
* libs/libc/string/lib_strerrorr.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 <nuttx/config.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: strerror_r
|
|
*
|
|
* Description:
|
|
* The strerror_r() function is similar to strerror(), but is thread safe.
|
|
* It returns the error string in the user-supplied buffer 'buf' of length
|
|
* 'buflen'.
|
|
*
|
|
* Returned Value:
|
|
* strerror_r() returns 0 on success. On error, a (positive) error number is
|
|
* returned.
|
|
*
|
|
* Portability:
|
|
* Specified in POSIX.1-2001
|
|
*
|
|
****************************************************************************/
|
|
|
|
int strerror_r(int errnum, FAR char *buf, size_t buflen)
|
|
{
|
|
FAR const char *errstr = strerror(errnum);
|
|
|
|
DEBUGASSERT(buf != NULL);
|
|
strlcpy(buf, errstr, buflen);
|
|
return OK;
|
|
}
|