server_http_time
ssize_t server_http_time(time_t, char *, size_t);
(server_http_time(time(NULL), tmbuf, sizeof(tmbuf)) <= 0 ||
if (server_http_time(mtime, tmbuf, sizeof(tmbuf)) <= 0 ||
if (server_http_time(time(NULL), tmbuf, sizeof(tmbuf)) <= 0 ||
if (server_http_time(time(NULL), tmbuf, sizeof(tmbuf)) <= 0)