1 files changed, 55 insertions, 0 deletions
diff --git a/examples/setpin.c b/examples/setpin.c
new file mode 100644
index 0000000..72e08e4
--- /dev/null
+++ b/examples/setpin.c
@@ -0,0 +1,55 @@
+/*
+ * 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
+ */
+
+/*
+ * Configure a PIN on a given authenticator.
+ */
+
+#include <fido.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "../openbsd-compat/openbsd-compat.h"
+
+static void
+setpin(const char *path, const char *pin, const char *oldpin)
+{
+	fido_dev_t *dev;
+	int r;
+
+	fido_init(0);
+
+	if ((dev = fido_dev_new()) == NULL)
+		errx(1, "fido_dev_new");
+
+	if ((r = fido_dev_open(dev, path)) != FIDO_OK)
+		errx(1, "fido_dev_open: %s (0x%x)", fido_strerr(r), r);
+
+	if ((r = fido_dev_set_pin(dev, pin, oldpin)) != FIDO_OK)
+		errx(1, "fido_dev_set_pin: %s (0x%x)", fido_strerr(r), r);
+
+	if ((r = fido_dev_close(dev)) != FIDO_OK)
+		errx(1, "fido_dev_close: %s (0x%x)", fido_strerr(r), r);
+
+	fido_dev_free(&dev);
+}
+
+int
+main(int argc, char **argv)
+{
+	if (argc < 3 || argc > 4) {
+		fprintf(stderr, "usage: setpin <pin> [oldpin] <device>\n");
+		exit(EXIT_FAILURE);
+	}
+
+	if (argc == 3)
+		setpin(argv[2], argv[1], NULL);
+	else
+		setpin(argv[3], argv[1], argv[2]);
+
+	exit(0);
+}