retries.c

/*
 * Copyright (c) 2018 Yubico AB. All rights reserved.
 * Use of this source code is governed by a BSD-style
 * license that can be found in the LICENSE file.
 * SPDX-License-Identifier: BSD-2-Clause
 */

/*
 * Get an authenticator's number of PIN attempts left.
 */

#include <fido.h>
#include <stdio.h>
#include <stdlib.h>

#include "../openbsd-compat/openbsd-compat.h"

int
main(int argc, char **argv)
{
	fido_dev_t	*dev;
	int		n;
	int		r;

	if (argc != 2) {
		fprintf(stderr, "usage: retries <device>\n");
		exit(EXIT_FAILURE);
	}

	fido_init(0);

	if ((dev = fido_dev_new()) == NULL)
		errx(1, "fido_dev_new");

	if ((r = fido_dev_open(dev, argv[1])) != FIDO_OK)
		errx(1, "fido_open: %s (0x%x)", fido_strerr(r), r);

	if ((r = fido_dev_get_retry_count(dev, &n)) != FIDO_OK)
		errx(1, "fido_dev_get_retry_count: %s (0x%x)", fido_strerr(r), r);

	if ((r = fido_dev_close(dev)) != FIDO_OK)
		errx(1, "fido_close: %s (0x%x)", fido_strerr(r), r);

	fido_dev_free(&dev);

	printf("%d\n", n);

	exit(0);
}