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/* *****************************************************************
*
* Copyright 2016 Microsoft
*
*
* Licensed 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.
*
******************************************************************/
#include "getopt.h"
#include <string.h>
char* optarg = NULL;
int optind = 1;
int getopt(int argc, char* const argv[], const char* optstring)
{
if ((optind >= argc) || (argv[optind][0] != '-') || (argv[optind][0] == 0))
{
return -1;
}
int opt = argv[optind][1];
const char* p = strchr(optstring, opt);
if (p == NULL)
{
return '?';
}
if (p[1] == ':')
{
optind++;
if (optind >= argc)
{
return '?';
}
optarg = argv[optind];
optind++;
}
return opt;
}
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