cbor_bytestring_handle
return cbor_build_bytestring(cbor_bytestring_handle(item),
CBOR_EXPORT cbor_mutable_data cbor_bytestring_handle(const cbor_item_t *item);
memcpy(buffer + written, cbor_bytestring_handle(item), length);
authdata_ptr = cbor_bytestring_handle(item);
buf = cbor_bytestring_handle(item);
buf = cbor_bytestring_handle(item);
memcpy(*buf, cbor_bytestring_handle(item), *len);
memcpy(xy, cbor_bytestring_handle(item), xy_len);
memcpy(xy, cbor_bytestring_handle(item), xy_len);
memcpy(aaguid, cbor_bytestring_handle(item), aaguid_len);
memcpy(ptr, cbor_bytestring_handle(item), len);