mirror of
https://github.com/openssl/openssl.git
synced 2024-12-17 22:13:45 +08:00
367 lines
11 KiB
C
367 lines
11 KiB
C
/* crypto/o_time.c -*- mode:C; c-file-style: "eay" -*- */
|
|
/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
|
|
* project 2001.
|
|
*/
|
|
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
|
|
* project 2008.
|
|
*/
|
|
/* ====================================================================
|
|
* Copyright (c) 2001 The OpenSSL Project. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this
|
|
* software must display the following acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
|
|
*
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* licensing@OpenSSL.org.
|
|
*
|
|
* 5. Products derived from this software may not be called "OpenSSL"
|
|
* nor may "OpenSSL" appear in their names without prior written
|
|
* permission of the OpenSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
* ====================================================================
|
|
*
|
|
* This product includes cryptographic software written by Eric Young
|
|
* (eay@cryptsoft.com). This product includes software written by Tim
|
|
* Hudson (tjh@cryptsoft.com).
|
|
*
|
|
*/
|
|
|
|
#include <openssl/e_os2.h>
|
|
#include <string.h>
|
|
#include "o_time.h"
|
|
|
|
#ifdef OPENSSL_SYS_VMS
|
|
# include <libdtdef.h>
|
|
# include <lib$routines.h>
|
|
# include <lnmdef.h>
|
|
# include <starlet.h>
|
|
# include <descrip.h>
|
|
# include <stdlib.h>
|
|
#endif
|
|
|
|
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_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$trnlnm(0, &tabnam, &lognam, 0, itemlist);
|
|
if (!(status & 1))
|
|
return NULL;
|
|
logvalue[reslen] = '\0';
|
|
|
|
t = *timer;
|
|
|
|
/* The following is extracted from the DEC C header time.h */
|
|
/*
|
|
** Beginning in OpenVMS Version 7.0 mktime, time, ctime, strftime
|
|
** have two implementations. One implementation is provided
|
|
** for compatibility and deals with time in terms of local time,
|
|
** the other __utc_* deals with time in terms of UTC.
|
|
*/
|
|
/* We use the same conditions as in said time.h to check if we should
|
|
assume that t contains local time (and should therefore be adjusted)
|
|
or UTC (and should therefore be left untouched). */
|
|
#if __CRTL_VER < 70000000 || defined _VMS_V6_SOURCE
|
|
/* Get the numerical value of the equivalence string */
|
|
status = atoi(logvalue);
|
|
|
|
/* and use it to move time to GMT */
|
|
t -= status;
|
|
#endif
|
|
|
|
/* then convert the result to the time structure */
|
|
|
|
/* Since there was no gmtime_r() to do this stuff for us,
|
|
we have to do it the hard way. */
|
|
{
|
|
/* The VMS epoch is the astronomical Smithsonian date,
|
|
if I remember correctly, which is November 17, 1858.
|
|
Furthermore, time is measure in thenths of microseconds
|
|
and stored in quadwords (64 bit integers). unix_epoch
|
|
below is January 1st 1970 expressed as a VMS time. The
|
|
following code was used to get this number:
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <lib$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;
|
|
}
|
|
}
|
|
#endif
|
|
return ts;
|
|
}
|
|
|
|
/* Take a tm structure and add an offset to it. This avoids any OS issues
|
|
* with restricted date types and overflows which cause the year 2038
|
|
* problem.
|
|
*/
|
|
|
|
#define SECS_PER_DAY (24 * 60 * 60)
|
|
|
|
static long date_to_julian(int y, int m, int d);
|
|
static void julian_to_date(long jd, int *y, int *m, int *d);
|
|
|
|
int OPENSSL_gmtime_adj(struct tm *tm, int off_day, long offset_sec)
|
|
{
|
|
int offset_hms, offset_day;
|
|
long time_jd;
|
|
int time_year, time_month, time_day;
|
|
/* split offset into days and day seconds */
|
|
offset_day = offset_sec / SECS_PER_DAY;
|
|
/* Avoid sign issues with % operator */
|
|
offset_hms = offset_sec - (offset_day * SECS_PER_DAY);
|
|
offset_day += off_day;
|
|
/* Add current time seconds to offset */
|
|
offset_hms += tm->tm_hour * 3600 + tm->tm_min * 60 + tm->tm_sec;
|
|
/* Adjust day seconds if overflow */
|
|
if (offset_hms >= SECS_PER_DAY)
|
|
{
|
|
offset_day++;
|
|
offset_hms -= SECS_PER_DAY;
|
|
}
|
|
else if (offset_hms < 0)
|
|
{
|
|
offset_day--;
|
|
offset_hms += SECS_PER_DAY;
|
|
}
|
|
|
|
/* Convert date of time structure into a Julian day number.
|
|
*/
|
|
|
|
time_year = tm->tm_year + 1900;
|
|
time_month = tm->tm_mon + 1;
|
|
time_day = tm->tm_mday;
|
|
|
|
time_jd = date_to_julian(time_year, time_month, time_day);
|
|
|
|
/* Work out Julian day of new date */
|
|
time_jd += offset_day;
|
|
|
|
if (time_jd < 0)
|
|
return 0;
|
|
|
|
/* Convert Julian day back to date */
|
|
|
|
julian_to_date(time_jd, &time_year, &time_month, &time_day);
|
|
|
|
if (time_year < 1900 || time_year > 9999)
|
|
return 0;
|
|
|
|
/* Update tm structure */
|
|
|
|
tm->tm_year = time_year - 1900;
|
|
tm->tm_mon = time_month - 1;
|
|
tm->tm_mday = time_day;
|
|
|
|
tm->tm_hour = offset_hms / 3600;
|
|
tm->tm_min = (offset_hms / 60) % 60;
|
|
tm->tm_sec = offset_hms % 60;
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
/* Convert date to and from julian day
|
|
* Uses Fliegel & Van Flandern algorithm
|
|
*/
|
|
static long date_to_julian(int y, int m, int d)
|
|
{
|
|
return (1461 * (y + 4800 + (m - 14) / 12)) / 4 +
|
|
(367 * (m - 2 - 12 * ((m - 14) / 12))) / 12 -
|
|
(3 * ((y + 4900 + (m - 14) / 12) / 100)) / 4 +
|
|
d - 32075;
|
|
}
|
|
|
|
static void julian_to_date(long jd, int *y, int *m, int *d)
|
|
{
|
|
long L = jd + 68569;
|
|
long n = (4 * L) / 146097;
|
|
long i, j;
|
|
|
|
L = L - (146097 * n + 3) / 4;
|
|
i = (4000 * (L + 1)) / 1461001;
|
|
L = L - (1461 * i) / 4 + 31;
|
|
j = (80 * L) / 2447;
|
|
*d = L - (2447 * j) / 80;
|
|
L = j / 11;
|
|
*m = j + 2 - (12 * L);
|
|
*y = 100 * (n - 49) + i + L;
|
|
}
|
|
|
|
#ifdef OPENSSL_TIME_TEST
|
|
|
|
#include <stdio.h>
|
|
|
|
/* Time checking test code. Check times are identical for a wide range of
|
|
* offsets. This should be run on a machine with 64 bit time_t or it will
|
|
* trigger the very errors the routines fix.
|
|
*/
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
long offset;
|
|
for (offset = 0; offset < 1000000; offset++)
|
|
{
|
|
check_time(offset);
|
|
check_time(-offset);
|
|
check_time(offset * 1000);
|
|
check_time(-offset * 1000);
|
|
}
|
|
}
|
|
|
|
int check_time(long offset)
|
|
{
|
|
struct tm tm1, tm2;
|
|
time_t t1, t2;
|
|
time(&t1);
|
|
t2 = t1 + offset;
|
|
OPENSSL_gmtime(&t2, &tm2);
|
|
OPENSSL_gmtime(&t1, &tm1);
|
|
OPENSSL_gmtime_adj(&tm1, 0, offset);
|
|
if ((tm1.tm_year == tm2.tm_year) &&
|
|
(tm1.tm_mon == tm2.tm_mon) &&
|
|
(tm1.tm_mday == tm2.tm_mday) &&
|
|
(tm1.tm_hour == tm2.tm_hour) &&
|
|
(tm1.tm_min == tm2.tm_min) &&
|
|
(tm1.tm_sec == tm2.tm_sec))
|
|
return 1;
|
|
fprintf(stderr, "TIME ERROR!!\n");
|
|
fprintf(stderr, "Time1: %d/%d/%d, %d:%02d:%02d\n",
|
|
tm2.tm_mday, tm2.tm_mon + 1, tm2.tm_year + 1900,
|
|
tm2.tm_hour, tm2.tm_min, tm2.tm_sec);
|
|
fprintf(stderr, "Time2: %d/%d/%d, %d:%02d:%02d\n",
|
|
tm1.tm_mday, tm1.tm_mon + 1, tm1.tm_year + 1900,
|
|
tm1.tm_hour, tm1.tm_min, tm1.tm_sec);
|
|
return 0;
|
|
}
|
|
|
|
#endif
|