// gcc largeblob.c -o largeblob -lfido2

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

int main() {
    // Initialize the FIDO library
    fido_init(0);

    // Find the first available device
    size_t count;
    auto devlist = fido_dev_info_new(1);
    fido_dev_info_manifest(devlist, 1, &count);
    if (count == 0) {
        fido_dev_info_free(&devlist, 1);
        return 1;
    }

    // Open the device
    auto path = fido_dev_info_path(fido_dev_info_ptr(devlist, 0));
    auto dev = fido_dev_new();
    fido_dev_open(dev, path);

    // Print the firmware version
    fprintf(stderr, "Firmware: %d.%d.%d\n", fido_dev_major(dev), fido_dev_minor(dev), fido_dev_build(dev));

    // Extract the large blob array
    unsigned char *cbor_ptr;
    size_t cbor_len;
    fido_dev_largeblob_get_array(dev, &cbor_ptr, &cbor_len);

    // Dump array to stdout
    fwrite(cbor_ptr, cbor_len, 1, stdout);
    fprintf(stderr, "Dumped largeBlob array of size %dB\n", cbor_len);

    free(cbor_ptr);

    // Close the device
    fido_dev_close(dev);
    fido_dev_free(&dev);

    // Clear the manifest memory
    fido_dev_info_free(&devlist, 1);

    return 0;
}