* libs/libc/string/lib_strsep.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 <string.h>
* Public Functions
****************************************************************************/
* Name: strsep
*
* Description:
* If *strp is NULL, the strsep() function returns NULL and does
* nothing else. Otherwise, this function finds the first token in the
* string *strp, that is delimited by one of the bytes in the string
* delim. This token is terminated by overwriting the delimiter with a
* null byte ('\0'), and *strp is updated to point past the token.
* In case no delimiter was found, the token is taken to be the entire
* string *strp, and *strp is made NULL.
*
* Returned Value:
* The strsep() function returns a pointer to the token, that is, it
* returns the original value of *strp.
*
****************************************************************************/
#undef strsep
FAR char *strsep(FAR char **strp, FAR const char *delim)
{
FAR char *sbegin = *strp;
FAR char *end;
if (sbegin == NULL)
{
return NULL;
}
end = strpbrk(sbegin, delim);
if (end != NULL)
{
*end++ = '\0';
}
*strp = end;
return sbegin;
}