OSSL_HTTP_get
mem = OSSL_HTTP_get(url, proxy, no_proxy, NULL /* bio */, NULL /* rbio */,
BIO *mem = OSSL_HTTP_get(url, NULL /* proxy */, NULL /* no_proxy */,
BIO *OSSL_HTTP_get(const char *url, const char *proxy, const char *no_proxy,
rsp = do_get ? OSSL_HTTP_get(real_server ? REAL_SERVER_URL : path,