report:
/src/le/libevent/sample/becat.c:304:29: warning: implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion]
case 'k': o.extra.keep = 1; break;
Since OpenSSL 3.0 there is new OPENSSL_VERSION_MAJOR, but previous
releases does not have it.
So let's use plain old OPENSSL_VERSION_NUMBER to avoid more preprocessor
macros.
* Don't use deprecated functions when building against OpenSSL 3.0.
* Recognise that OpenSSL 3.0 can signal a dirty shutdown as a protocol.
error in addition to the expected IO error produced by OpenSSL 1.1.1
* Update regress_mbedtls.c for compatibility with OpenSSL 3
Use the following for openssl 1.1+:
- X509_getm_notBefore over X509_get_notBefore
- X509_getm_notAfter over X509_get_notAfter
- use OPENSSL_VERSION_NUMBER over SSLeay()
- add missing headers
Refs: openssl/openssl@0b7347effe
It hasn't been part of the C standard until C11, although it is very
useful GCC extension it is better to avoid using this in cross platform
projects like libevent.
