libcoap/tests/test_block.h at 92fc71e90850ade89aa058a922dc14169b1d542e - libcoap - Gitea: Git with a cup of tea

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Alejandro Pacheco 92fc71e908 coap_block.c: Use get_func wherever a request body is added

For a request set up with coap_add_data_large_request_app(), the data
is provided by the application's get_func and there is no data pointer.
Three places still took the body from that NULL pointer, so
coap_add_data() was passed a NULL pointer:

- check_freshness(), re-sending the next block with the Echo option
  from a 4.01 response.
- coap_cancel_observe_lkd(), re-adding the observe request's body to
  the cancel request.
- coap_add_data_large_internal(), when the application sets a Block1
  option with a non-zero block number to send a single block.

Use get_func in all of these, as the other places that send a block of
an lg_xmit already do. The single block and the whole-body cases now
share add_get_func_data(), which also checks the allocation and no
longer leaks the buffer when get_func fails.

Add unit tests.

2026-10-16 14:14:20 +01:00

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 /* libcoap unit tests
  *
  * Copyright (C) 2026 Alejandro Pacheco <alepacheco99@gmail.com>
  *
  * SPDX-License-Identifier: BSD-2-Clause
  *
  * This file is part of the CoAP library libcoap. Please see
  * README for terms of use.
  */
 #include <CUnit/CUnit.h>
 CU_pSuite t_init_block_tests(void);