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_VMS) || defined(gmtime_r)) && !defined(OPENSSL_SYS_MACOSX)
/*
* should return &data, but doesn't on some systems, so we don't even
* look at the return value
*/
gmtime_r(timer, result);
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;
struct {
short buflen;
short code;
void *bufaddr;
unsigned int *reslen;
} itemlist[] = {
{
0, LNM$_STRING, 0, 0
},
{
0, 0, 0, 0
},
};
int status;
time_t t;
/* Get the value for SYS$TIMEZONE_DIFFERENTIAL */
itemlist[0].buflen = sizeof(logvalue);
itemlist[0].bufaddr = logvalue;
itemlist[0].reslen = &reslen;
status = sys$trnlnm(0, &tabnam, &lognam, 0, itemlist);
if (!(status & 1))
return NULL;
logvalue[reslen] = '\0';
t = *timer;
/* The following is extracted from the DEC C header time.h */
/*
** Beginning in OpenVMS Version 7.0 mktime, time, ctime, strftime
** have two implementations. One implementation is provided
** for compatibility and deals with time in terms of local time,
** the other __utc_* deals with time in terms of UTC.
*/
/*
* We use the same conditions as in said time.h to check if we should
* assume that t contains local time (and should therefore be
* adjusted) or UTC (and should therefore be left untouched).
*/
# if __CRTL_VER < 70000000 || defined _VMS_V6_SOURCE
/* Get the numerical value of the equivalence string */
status = atoi(logvalue);
/* and use it to move time to GMT */
t -= status;
# endif
/* then convert the result to the time structure */
/*
* Since there was no gmtime_r() to do this stuff for us, we have to
* do it the hard way.
*/
{
/*-
* The VMS epoch is the astronomical Smithsonian date,
if I remember correctly, which is November 17, 1858.
Furthermore, time is measure in tenths of microseconds
and stored in quadwords (64 bit integers). unix_epoch
below is January 1st 1970 expressed as a VMS time. The
following code was used to get this number:
#include <stdio.h>
#include <stdlib.h>
#include <lib$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;
}
}
#endif
return ts;
}
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(__CYGWIN32__) && (!defined(OPENSSL_SYS_VMS) || defined(gmtime_r)) && !defined(OPENSSL_SYS_MACOSX) && !defined(OPENSSL_SYS_SUNOS)
/* should return &data, but doesn't on some systems,
so we don't even look at the return value */
gmtime_r(timer,result);
ts = result;
#elif !defined(OPENSSL_SYS_VMS)
ts = gmtime(timer);
if (ts == NULL)
return NULL;
memcpy(result, ts, sizeof(struct tm));
ts = result;
#endif
#ifdef OPENSSL_SYS_VMS
if (ts == NULL)
{
static $DESCRIPTOR(tabnam,"LNM$DCL_LOGICAL");
static $DESCRIPTOR(lognam,"SYS$TIMEZONE_DIFFERENTIAL");
char logvalue[256];
unsigned int reslen = 0;
struct {
short buflen;
short code;
void *bufaddr;
unsigned int *reslen;
} itemlist[] = {
{ 0, LNM$_STRING, 0, 0 },
{ 0, 0, 0, 0 },
};
int status;
time_t t;
/* Get the value for SYS$TIMEZONE_DIFFERENTIAL */
itemlist[0].buflen = sizeof(logvalue);
itemlist[0].bufaddr = logvalue;
itemlist[0].reslen = &reslen;
status = sys$trnlnm(0, &tabnam, &lognam, 0, itemlist);
if (!(status & 1))
return NULL;
logvalue[reslen] = '\0';
/* Get the numerical value of the equivalence string */
status = atoi(logvalue);
/* and use it to move time to GMT */
t = *timer - status;
/* then convert the result to the time structure */
#ifndef OPENSSL_THREADS
ts=(struct tm *)localtime(&t);
#else
/* Since there was no gmtime_r() to do this stuff for us,
we have to do it the hard way. */
{
/* The VMS epoch is the astronomical Smithsonian date,
if I remember correctly, which is November 17, 1858.
Furthermore, time is measure in thenths of microseconds
and stored in quadwords (64 bit integers). unix_epoch
below is January 1st 1970 expressed as a VMS time. The
following code was used to get this number:
#include <stdio.h>
#include <stdlib.h>
#include <lib$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;
#endif
}
}
#endif
return ts;
}