SSL_CTX_set_info_callback
SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
SSL_CTX_set_info_callback(ctx, apps_ssl_info_callback);
SSL_CTX_set_info_callback(ctx2, apps_ssl_info_callback);
void SSL_CTX_set_info_callback(SSL_CTX *ctx,
SSL_CTX_set_info_callback(lctx, new_from_listener_info_cb);
SSL_CTX_set_info_callback((tst % 2) == 0 ? sctx : cctx,