Update pin.c

tools/pin.c

@@ -77,6 +77,46 @@ out:
 	exit(status);
 }
 
+
+int pin_set2(char* path, const char* pin1)
+{
+	fido_dev_t* dev = NULL;
+	int r;
+	int status = 1; // Default to failure
+
+	// Validate the provided PIN length
+	if (strlen(pin1) < 4 || strlen(pin1) > 63) {
+		fprintf(stderr, "invalid PIN length\n");
+		return status;
+	}
+
+	// Open the device
+	dev = open_dev(path);
+	if (!dev) {
+		fprintf(stderr, "Failed to open device\n");
+		return status;
+	}
+
+	// Set the PIN
+	if ((r = fido_dev_set_pin(dev, pin1, NULL)) != FIDO_OK) {
+		warnx("fido_dev_set_pin: %s", fido_strerr(r));
+	}
+	else {
+		status = 0; // Success
+	}
+
+	// Cleanup
+	if (dev) {
+		fido_dev_close(dev);
+		fido_dev_free(&dev);
+	}
+
+	// Explicitly clear the PIN from memory
+	explicit_bzero((void*)pin1, strlen(pin1));
+
+	return status;
+}
+
 int
 pin_change(char *path)
 {