sys/crypto: add ACCESS() attribute#22371
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crasbe
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- annotate functions using the `ACCESS()` macro with the `access` attribute so that GCC can emit proper `-Wstringop-overflow` warnings - some drive-by doxygen markup fixes - conversion of the license/copyright boiler plate to SPDX format Co-authored-by: crasbe <crasbe@gmail.com> Co-authored-by: Mikolai Gütschow <mikolai.guetschow@tu-dresden.de>
This fixes:
```
sys/net/application_layer/nanocoap/nanocoap.c:823:22: error: variable 'tkl_ext' is uninitialized when passed as a const pointer argument here [-Werror,-Wuninitialized-const-pointer]
823 | memcpy(buf, &tkl_ext, tkl_ext_len);
| ^~~~~~~
```
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Contribution description
ACCESS()macro with theaccessattribute so that GCC can emit proper-Wstringop-overflowwarningsTesting procedure
The CI will do this
Issues/PRs references
#22368
Declaration of AI-Tools / LLMs usage:
Same as in #22368