xref: /freebsd/contrib/libfido2/examples/retries.c (revision e6bfd18d21b225af6a0ed67ceeaf1293b7b9eba5)
1 /*
2  * Copyright (c) 2018 Yubico AB. All rights reserved.
3  * Use of this source code is governed by a BSD-style
4  * license that can be found in the LICENSE file.
5  */
6 
7 /*
8  * Get an authenticator's number of PIN attempts left.
9  */
10 
11 #include <fido.h>
12 #include <stdio.h>
13 #include <stdlib.h>
14 
15 #include "../openbsd-compat/openbsd-compat.h"
16 
17 int
18 main(int argc, char **argv)
19 {
20 	fido_dev_t	*dev;
21 	int		n;
22 	int		r;
23 
24 	if (argc != 2) {
25 		fprintf(stderr, "usage: retries <device>\n");
26 		exit(EXIT_FAILURE);
27 	}
28 
29 	fido_init(0);
30 
31 	if ((dev = fido_dev_new()) == NULL)
32 		errx(1, "fido_dev_new");
33 
34 	if ((r = fido_dev_open(dev, argv[1])) != FIDO_OK)
35 		errx(1, "fido_open: %s (0x%x)", fido_strerr(r), r);
36 
37 	if ((r = fido_dev_get_retry_count(dev, &n)) != FIDO_OK)
38 		errx(1, "fido_get_retries: %s (0x%x)", fido_strerr(r), r);
39 
40 	if ((r = fido_dev_close(dev)) != FIDO_OK)
41 		errx(1, "fido_close: %s (0x%x)", fido_strerr(r), r);
42 
43 	fido_dev_free(&dev);
44 
45 	printf("%d\n", n);
46 
47 	exit(0);
48 }
49