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* getopt.h - a simple getopt(3) implementation.
* Copyright (c) 2007 Sascha Hauer <>, 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
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#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[], char *optstring);
* We do not start a new process for each getopt() run, so we
* need this function to reset the static variables.
void getopt_reset(void);
#endif /* __GETOPT_H */