Function openssl_sys::OPENSSL_cipher_name
pub unsafe extern "C" fn OPENSSL_cipher_name(rfc_name: *const c_char) -> *const c_char
The portability is definied by:
#[cfg(ossl111)]
pub unsafe extern "C" fn OPENSSL_cipher_name(rfc_name: *const c_char) -> *const c_char
#[cfg(ossl111)]