- /* then convert the result to the time structure */
-
- /* Since there was no gmtime_r() to do this stuff for us,
- we have to do it the hard way. */
- {
- /* The VMS epoch is the astronomical Smithsonian date,
- if I remember correctly, which is November 17, 1858.
- Furthermore, time is measure in thenths of microseconds
- and stored in quadwords (64 bit integers). unix_epoch
- below is January 1st 1970 expressed as a VMS time. The
- following code was used to get this number:
-
- #include <stdio.h>
- #include <stdlib.h>
- #include <lib$routines.h>
- #include <starlet.h>
-
- main()
- {
- unsigned long systime[2];
- unsigned short epoch_values[7] =
- { 1970, 1, 1, 0, 0, 0, 0 };
-
- lib$cvt_vectim(epoch_values, systime);
-
- printf("%u %u", systime[0], systime[1]);
- }
- */
- unsigned long unix_epoch[2] = { 1273708544, 8164711 };
- unsigned long deltatime[2];
- unsigned long systime[2];
- struct vms_vectime
- {
- short year, month, day, hour, minute, second,
- centi_second;
- } time_values;
- long operation;
-
- /* Turn the number of seconds since January 1st 1970 to
- an internal delta time.
- Note that lib$cvt_to_internal_time() will assume
- that t is signed, and will therefore break on 32-bit
- systems some time in 2038.
- */
- operation = LIB$K_DELTA_SECONDS;
- status = lib$cvt_to_internal_time(&operation,
- &t, deltatime);
-
- /* Add the delta time with the Unix epoch and we have
- the current UTC time in internal format */
- status = lib$add_times(unix_epoch, deltatime, systime);
-
- /* Turn the internal time into a time vector */
- status = sys$numtim(&time_values, systime);
-
- /* Fill in the struct tm with the result */
- result->tm_sec = time_values.second;
- result->tm_min = time_values.minute;
- result->tm_hour = time_values.hour;
- result->tm_mday = time_values.day;
- result->tm_mon = time_values.month - 1;
- result->tm_year = time_values.year - 1900;
-
- operation = LIB$K_DAY_OF_WEEK;
- status = lib$cvt_from_internal_time(&operation,
- &result->tm_wday, systime);
- result->tm_wday %= 7;
-
- operation = LIB$K_DAY_OF_YEAR;
- status = lib$cvt_from_internal_time(&operation,
- &result->tm_yday, systime);
- result->tm_yday--;
-
- result->tm_isdst = 0; /* There's no way to know... */
-
- ts = result;
- }
- }
+struct tm *OPENSSL_gmtime(const time_t *timer, struct tm *result)
+{
+ struct tm *ts = NULL;
+
+#if defined(OPENSSL_THREADS) && !defined(OPENSSL_SYS_WIN32) && !defined(OPENSSL_SYS_OS2) && (!defined(OPENSSL_SYS_VMS) || defined(gmtime_r)) && !defined(OPENSSL_SYS_SUNOS)
+ if (gmtime_r(timer, result) == NULL)
+ return NULL;
+ ts = result;
+#elif !defined(OPENSSL_SYS_VMS) || defined(VMS_GMTIME_OK)
+ ts = gmtime(timer);
+ if (ts == NULL)
+ return NULL;
+
+ memcpy(result, ts, sizeof(struct tm));
+ ts = result;
+#endif
+#if defined( OPENSSL_SYS_VMS) && !defined( VMS_GMTIME_OK)
+ if (ts == NULL) {
+ static $DESCRIPTOR(tabnam, "LNM$DCL_LOGICAL");
+ static $DESCRIPTOR(lognam, "SYS$TIMEZONE_DIFFERENTIAL");
+ char logvalue[256];
+ unsigned int reslen = 0;
+# if __INITIAL_POINTER_SIZE == 64
+ ILEB_64 itemlist[2], *pitem;
+# else
+ ILE3 itemlist[2], *pitem;
+# endif
+ int status;
+ time_t t;
+
+
+ /*
+ * Setup an itemlist for the call to $TRNLNM - Translate Logical Name.
+ */
+ pitem = itemlist;
+
+# if __INITIAL_POINTER_SIZE == 64
+ pitem->ileb_64$w_mbo = 1;
+ pitem->ileb_64$w_code = LNM$_STRING;
+ pitem->ileb_64$l_mbmo = -1;
+ pitem->ileb_64$q_length = sizeof(logvalue);
+ pitem->ileb_64$pq_bufaddr = logvalue;
+ pitem->ileb_64$pq_retlen_addr = (unsigned __int64 *) &reslen;
+ pitem++;
+ /* Last item of the item list is null terminated */
+ pitem->ileb_64$q_length = pitem->ileb_64$w_code = 0;
+# else
+ pitem->ile3$w_length = sizeof(logvalue);
+ pitem->ile3$w_code = LNM$_STRING;
+ pitem->ile3$ps_bufaddr = logvalue;
+ pitem->ile3$ps_retlen_addr = (unsigned short int *) &reslen;
+ pitem++;
+ /* Last item of the item list is null terminated */
+ pitem->ile3$w_length = pitem->ile3$w_code = 0;
+# endif
+
+
+ /* Get the value for SYS$TIMEZONE_DIFFERENTIAL */
+ status = sys$trnlnm(0, &tabnam, &lognam, 0, itemlist);
+ if (!(status & 1))
+ return NULL;
+ logvalue[reslen] = '\0';
+
+ t = *timer;
+
+ /* The following is extracted from the DEC C header time.h */
+ /*
+ ** Beginning in OpenVMS Version 7.0 mktime, time, ctime, strftime
+ ** have two implementations. One implementation is provided
+ ** for compatibility and deals with time in terms of local time,
+ ** the other __utc_* deals with time in terms of UTC.
+ */
+ /*
+ * We use the same conditions as in said time.h to check if we should
+ * assume that t contains local time (and should therefore be
+ * adjusted) or UTC (and should therefore be left untouched).
+ */
+# if __CRTL_VER < 70000000 || defined _VMS_V6_SOURCE
+ /* Get the numerical value of the equivalence string */
+ status = atoi(logvalue);
+
+ /* and use it to move time to GMT */
+ t -= status;
+# endif
+
+ /* then convert the result to the time structure */
+
+ /*
+ * Since there was no gmtime_r() to do this stuff for us, we have to
+ * do it the hard way.
+ */
+ {
+ /*-
+ * The VMS epoch is the astronomical Smithsonian date,
+ if I remember correctly, which is November 17, 1858.
+ Furthermore, time is measure in thenths of microseconds
+ and stored in quadwords (64 bit integers). unix_epoch
+ below is January 1st 1970 expressed as a VMS time. The
+ following code was used to get this number:
+
+ #include <stdio.h>
+ #include <stdlib.h>
+ #include <lib$routines.h>
+ #include <starlet.h>
+
+ main()
+ {
+ unsigned long systime[2];
+ unsigned short epoch_values[7] =
+ { 1970, 1, 1, 0, 0, 0, 0 };
+
+ lib$cvt_vectim(epoch_values, systime);
+
+ printf("%u %u", systime[0], systime[1]);
+ }
+ */
+ unsigned long unix_epoch[2] = { 1273708544, 8164711 };
+ unsigned long deltatime[2];
+ unsigned long systime[2];
+ struct vms_vectime {
+ short year, month, day, hour, minute, second, centi_second;
+ } time_values;
+ long operation;
+
+ /*
+ * Turn the number of seconds since January 1st 1970 to an
+ * internal delta time. Note that lib$cvt_to_internal_time() will
+ * assume that t is signed, and will therefore break on 32-bit
+ * systems some time in 2038.
+ */
+ operation = LIB$K_DELTA_SECONDS;
+ status = lib$cvt_to_internal_time(&operation, &t, deltatime);
+
+ /*
+ * Add the delta time with the Unix epoch and we have the current
+ * UTC time in internal format
+ */
+ status = lib$add_times(unix_epoch, deltatime, systime);
+
+ /* Turn the internal time into a time vector */
+ status = sys$numtim(&time_values, systime);
+
+ /* Fill in the struct tm with the result */
+ result->tm_sec = time_values.second;
+ result->tm_min = time_values.minute;
+ result->tm_hour = time_values.hour;
+ result->tm_mday = time_values.day;
+ result->tm_mon = time_values.month - 1;
+ result->tm_year = time_values.year - 1900;
+
+ operation = LIB$K_DAY_OF_WEEK;
+ status = lib$cvt_from_internal_time(&operation,
+ &result->tm_wday, systime);
+ result->tm_wday %= 7;
+
+ operation = LIB$K_DAY_OF_YEAR;
+ status = lib$cvt_from_internal_time(&operation,
+ &result->tm_yday, systime);
+ result->tm_yday--;
+
+ result->tm_isdst = 0; /* There's no way to know... */
+
+ ts = result;
+ }
+ }