busybox/libbb/getopt_ulflags.c

/* vi: set sw=4 ts=4: */
/*
 * getopt_ulflags implementation for busybox
 *
 * Copyright (C) 2003  Manuel Novoa III  <mjn3@codepoet.org>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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.
 *
 * 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
 *
 */

#include <getopt.h>
#include <string.h>
#include "libbb.h"

unsigned long bb_getopt_ulflags(int argc, char **argv, const char *applet_opts)
{
	unsigned long flags = 0;
	const char *s;
	int c;

	while ((c = getopt(argc, argv, applet_opts)) > 0) {
		if (!(s = strchr(applet_opts, c))) {
			bb_show_usage();
		}
		flags |= (1 << (s-applet_opts));
	}

	return flags;
}