|| r == SSL_R_UNKNOWN_PROTOCOL || r == SSL_R_UNSUPPORTED_PROTOCOL)
s = string_sprintf("%s (%s)", s, SSL_get_version(server_ssl));
(void) tls_error(s, NULL, sigalrm_seen ? US"timed out" : NULL, errstr);
|| r == SSL_R_UNKNOWN_PROTOCOL || r == SSL_R_UNSUPPORTED_PROTOCOL)
s = string_sprintf("%s (%s)", s, SSL_get_version(server_ssl));
(void) tls_error(s, NULL, sigalrm_seen ? US"timed out" : NULL, errstr);