if(data->timecondition) {
struct tm *thistime;
+ /* Phil Karn (Fri, 13 Apr 2001) pointed out that the If-Modified-Since
+ * header family should have their times set in GMT as RFC2616 defines:
+ * "All HTTP date/time stamps MUST be represented in Greenwich Mean Time
+ * (GMT), without exception. For the purposes of HTTP, GMT is exactly
+ * equal to UTC (Coordinated Universal Time)." (see page 20 of RFC2616).
+ */
+
#ifdef HAVE_LOCALTIME_R
/* thread-safe version */
+ /* We assume that the presense of localtime_r() proves the presense
+ of gmtime_r() which is a bit ugly but might work */
struct tm keeptime;
- thistime = (struct tm *)localtime_r(&data->timevalue, &keeptime);
+ thistime = (struct tm *)gmtime_r(&data->timevalue, &keeptime);
#else
- thistime = localtime(&data->timevalue);
+ thistime = gmtime(&data->timevalue);
#endif
if(NULL == thistime) {
failf(data, "localtime() failed!");