libcrypto does not arm OPENSSL_cleanup() function as atexit(3) handler by default.
If application/user wants libcrypto to install OPENSSL_cleanup() as atexit handler,
then OPENSSL_ATEXIT_CLEANUP env. variable must be set.
If platform's libc does not provide atexit(3), then OPENSSL_ATEXIT_CLEANUP has no effect.
The OPENSSL_atexit() is wrapper of atexit(3) provided by libc now.
Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/29385)
For functions that exist in 1.1.1 provide a simple aliases via #define.
Fixes#15236
Functions with OSSL_DECODER_, OSSL_ENCODER_, OSSL_STORE_LOADER_,
EVP_KEYEXCH_, EVP_KEM_, EVP_ASYM_CIPHER_, EVP_SIGNATURE_,
EVP_KEYMGMT_, EVP_RAND_, EVP_MAC_, EVP_KDF_, EVP_PKEY_,
EVP_MD_, and EVP_CIPHER_ prefixes are renamed.
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15405)
