tree 7439fa6aac6d747f6246b7c3c6a44f89f48e1b76
parent 528b0a6b18eefacaed7a447b2226cb15723de1ba
author Chris Jones <christopher.jones@arm.com> 1610125499 +0000
committer Chris Jones <christopher.jones@arm.com> 1618323122 +0100

Add macro for error code addition

Adds a macro (`MBEDTLS_ERR_ADD`) to add error codes together and check that the
result will not be corrupted. This additional check is only enabled during
testing when `MBEDTLS_TEST_HOOKS` is defined.

Also includes a reference usage example in `rsa.c` where two high-level error
codes could be incorrectly added together under the right conditions. This now
ensures that when this error occurs during testing it will be correctly
reported.

Signed-off-by: Chris Jones <christopher.jones@arm.com>