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fun/extra/examples/pcsc_demo.fun

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#!/usr/bin/env fun
/*
* This file is part of the Fun programming language.
* https://fun-lang.xyz/
*
* Copyright 2025 Johannes Findeisen <you@hanez.org>
* Licensed under the terms of the Apache-2.0 license.
* https://opensource.org/license/apache-2-0
*
* Added: 2025-10-02
*/
// PCSC demo using stdlib PCSC class.
// Establishes context, lists readers, optionally connects to the first,
// transmits a sample APDU (SELECT MF), and cleans up.
#include <io/pcsc.fun>
pc = PCSC()
ctx = pc.establish()
print("ctx=" + to_string(ctx))
readers = pc.list_readers(ctx)
print("readers=" + to_string(readers))
number h = 0
if len(readers) > 0
// Connect to first reader
h = pc.connect(ctx, readers[1])
print("handle=" + to_string(h))
if h != 0
// Sample APDU: SELECT MF (00 A4 00 00 02 3F 00)
resp = pc.transmit_hex(h, "00A40000023F00")
// Print hex data and SW
print("resp.data_hex=" + resp["data_hex"])
print("resp.sw1=" + to_string(resp["sw1"]) + " sw2=" + to_string(resp["sw2"]) + " code=" + to_string(resp["code"]))
_ = pc.disconnect(h)
_ = pc.release(ctx)
print("done")