SSL_get0_domain
__owur SSL *SSL_get0_domain(SSL *s);
return SSL_get0_domain(s) == s;
|| !TEST_ptr_eq(SSL_get0_domain(domain), domain)
|| !TEST_ptr_null(SSL_get0_domain(other_conn))
|| !TEST_ptr_eq(SSL_get0_domain(listener), domain)
if (SSL_get0_domain(ssl) == NULL)