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/*
* getopt.h - a simple getopt(3) implementation.
*
* Copyright (c) 2007 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef __GETOPT_H
#define __GETOPT_H
extern int opterr;
extern int optind;
extern int optopt;
extern char *optarg;
/*
* Simple getopt(3) implementation.
* This version of getopt does not take long options but should
* otherwise behave like one expects.
*
* - It takes ':' in optstring for required arguments and '::'
* for optional arguments.
* - arguments can be followed directly by optargs (like -loptarg)
* or in the next argv[] element (like -l optarg).
* - arguments can be grouped together (like ls -alR)
* - options can be mixed with nonoptions (like ls /bin -R)
*/
int getopt(int argc, char *argv[], const char *optstring);
struct getopt_context {
int opterr;
int optind;
int optopt;
int nonopts;
int optindex;
char *optarg;
};
/*
* We do not start a new process for each getopt() run, so we
* need this function to save and restore the context.
*/
void getopt_context_store(struct getopt_context *ctx);
void getopt_context_restore(struct getopt_context *ctx);
#endif /* __GETOPT_H */
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