/*-
 * Copyright (c) 2010-2011 Monthadar Al Jaberi, TerraNet AB
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
 *    redistribution must be conditioned upon including a substantially
 *    similar Disclaimer requirement for further binary redistribution.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGES.
 *
 * $FreeBSD$
 */
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <sys/ioctl.h>

/*
 * From the driver itself
 */
#include <plugins/visibility_ioctl.h>

static int dev = -1;

static void
toggle_medium(int op)
{
	if (ioctl(dev, VISIOCTLOPEN, &op) < 0) {
		printf("error opening/closing medium\n");
	}
}

static void
link_op(struct link *l)
{
	if (ioctl(dev, VISIOCTLLINK, l) < 0) {
		printf("error making a link operation\n");
	}
}

static void
usage(const char *argv[])
{
	printf("usage: %s [o | c | [ [a|d]  wtap_id1  wtap_id2]]\n",
	    argv[0]);
}

int
main(int argc, const char* argv[])
{
	struct link l;
	char cmd;

	if (argc < 2) {
		usage(argv);
		exit(1);
	}

	dev = open("/dev/visctl", O_RDONLY);
		if (dev < 0) {
			printf("error opening visctl cdev\n");
			exit(1);
	}

	cmd = (char)*argv[1];

	switch (cmd) {
	case 'o':
		toggle_medium(1);
		break;
	case 'c':
		toggle_medium(0);
		break;
	case 'a':
		if (argc < 4) {
			usage(argv);
			exit(1);
		}
		l.op = 1;
		l.id1 = atoi(argv[2]);
		l.id2 = atoi(argv[3]);
		link_op(&l);
		break;
	case 'd':
		if (argc < 4) {
			usage(argv);
			exit(1);
		}
		l.op = 0;
		l.id1 = atoi(argv[2]);
		l.id2 = atoi(argv[3]);
		link_op(&l);
		break;
	default:
		printf("wtap ioctl: unknown command '%c'\n", *argv[1]);
		exit(1);
	}
	exit(0);
}