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

53 lines
2.2 KiB
C

/****************************************************************************
* libs/libc/unistd/lib_getopt_long.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 "unistd.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: getopt_long
*
* Description:
* The getopt_long() function works like getopt() except that it also
* accepts long options, started with two dashes. (If the program accepts
* only long options, then optstring should be specified as an empty
* string (""), not NULL.) Long option names may be abbreviated if the
* abbreviation is unique or is an exact match for some defined option
*
****************************************************************************/
int getopt_long(int argc, FAR char * const argv[],
FAR const char *optstring,
FAR const struct option *longopts,
FAR int *longindex)
{
return getopt_common(argc, argv, optstring, longopts, longindex,
GETOPT_LONG_MODE);
}