2015-12-18 12:12:58 +00:00
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/* crypto/o_time.c */
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2015-01-22 03:29:12 +00:00
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/*
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* Written by Richard Levitte (richard@levitte.org) for the OpenSSL project
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* 2001.
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2001-05-16 08:44:09 +00:00
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*/
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2015-01-22 03:29:12 +00:00
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/*
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* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
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* 2008.
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2008-10-07 22:55:27 +00:00
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*/
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2001-05-16 08:44:09 +00:00
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/* ====================================================================
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* Copyright (c) 2001 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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2015-01-22 03:29:12 +00:00
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* notice, this list of conditions and the following disclaimer.
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2001-05-16 08:44:09 +00:00
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <openssl/e_os2.h>
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2001-08-03 10:54:00 +00:00
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#include <string.h>
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2001-05-16 08:44:09 +00:00
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#include "o_time.h"
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#ifdef OPENSSL_SYS_VMS
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2011-03-19 09:47:47 +00:00
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# if __CRTL_VER >= 70000000 && \
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(defined _POSIX_C_SOURCE || !defined _ANSI_C_SOURCE)
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# define VMS_GMTIME_OK
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# endif
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# ifndef VMS_GMTIME_OK
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# include <libdtdef.h>
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# include <lib$routines.h>
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# include <lnmdef.h>
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# include <starlet.h>
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# include <descrip.h>
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# include <stdlib.h>
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2015-01-22 03:29:12 +00:00
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# endif /* ndef VMS_GMTIME_OK */
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2001-05-16 08:44:09 +00:00
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#endif
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struct tm *OPENSSL_gmtime(const time_t *timer, struct tm *result)
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2015-01-22 03:29:12 +00:00
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{
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struct tm *ts = NULL;
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2001-05-16 08:44:09 +00:00
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2006-08-13 09:03:38 +00:00
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#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)
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2015-01-22 03:29:12 +00:00
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/*
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* should return &data, but doesn't on some systems, so we don't even
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* look at the return value
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*/
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gmtime_r(timer, result);
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ts = result;
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2011-03-19 09:47:47 +00:00
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#elif !defined(OPENSSL_SYS_VMS) || defined(VMS_GMTIME_OK)
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2015-01-22 03:29:12 +00:00
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ts = gmtime(timer);
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if (ts == NULL)
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return NULL;
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2003-03-13 14:13:53 +00:00
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2015-01-22 03:29:12 +00:00
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memcpy(result, ts, sizeof(struct tm));
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ts = result;
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2001-05-16 08:44:09 +00:00
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#endif
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2011-03-19 09:47:47 +00:00
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#if defined( OPENSSL_SYS_VMS) && !defined( VMS_GMTIME_OK)
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2015-01-22 03:29:12 +00:00
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if (ts == NULL) {
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static $DESCRIPTOR(tabnam, "LNM$DCL_LOGICAL");
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static $DESCRIPTOR(lognam, "SYS$TIMEZONE_DIFFERENTIAL");
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char logvalue[256];
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unsigned int reslen = 0;
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struct {
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short buflen;
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short code;
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void *bufaddr;
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unsigned int *reslen;
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} itemlist[] = {
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{
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0, LNM$_STRING, 0, 0
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},
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{
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0, 0, 0, 0
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},
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};
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int status;
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time_t t;
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/* Get the value for SYS$TIMEZONE_DIFFERENTIAL */
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itemlist[0].buflen = sizeof(logvalue);
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itemlist[0].bufaddr = logvalue;
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itemlist[0].reslen = &reslen;
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status = sys$trnlnm(0, &tabnam, &lognam, 0, itemlist);
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if (!(status & 1))
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return NULL;
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logvalue[reslen] = '\0';
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t = *timer;
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2004-07-19 07:50:43 +00:00
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/* The following is extracted from the DEC C header time.h */
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2015-01-22 03:29:12 +00:00
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/*
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** Beginning in OpenVMS Version 7.0 mktime, time, ctime, strftime
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** have two implementations. One implementation is provided
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** for compatibility and deals with time in terms of local time,
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** the other __utc_* deals with time in terms of UTC.
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*/
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/*
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* We use the same conditions as in said time.h to check if we should
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* assume that t contains local time (and should therefore be
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* adjusted) or UTC (and should therefore be left untouched).
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*/
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# if __CRTL_VER < 70000000 || defined _VMS_V6_SOURCE
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/* Get the numerical value of the equivalence string */
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status = atoi(logvalue);
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/* and use it to move time to GMT */
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t -= status;
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# endif
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2001-05-16 08:44:09 +00:00
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2015-01-22 03:29:12 +00:00
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/* then convert the result to the time structure */
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/*
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* Since there was no gmtime_r() to do this stuff for us, we have to
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* do it the hard way.
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*/
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{
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2015-01-05 11:30:03 +00:00
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/*-
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* The VMS epoch is the astronomical Smithsonian date,
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if I remember correctly, which is November 17, 1858.
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Furthermore, time is measure in thenths of microseconds
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and stored in quadwords (64 bit integers). unix_epoch
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below is January 1st 1970 expressed as a VMS time. The
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following code was used to get this number:
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#include <stdio.h>
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#include <stdlib.h>
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#include <lib$routines.h>
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#include <starlet.h>
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main()
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{
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unsigned long systime[2];
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unsigned short epoch_values[7] =
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{ 1970, 1, 1, 0, 0, 0, 0 };
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lib$cvt_vectim(epoch_values, systime);
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printf("%u %u", systime[0], systime[1]);
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}
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*/
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2015-01-22 03:29:12 +00:00
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unsigned long unix_epoch[2] = { 1273708544, 8164711 };
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unsigned long deltatime[2];
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unsigned long systime[2];
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struct vms_vectime {
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short year, month, day, hour, minute, second, centi_second;
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} time_values;
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long operation;
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/*
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* Turn the number of seconds since January 1st 1970 to an
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* internal delta time. Note that lib$cvt_to_internal_time() will
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* assume that t is signed, and will therefore break on 32-bit
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* systems some time in 2038.
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*/
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operation = LIB$K_DELTA_SECONDS;
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status = lib$cvt_to_internal_time(&operation, &t, deltatime);
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/*
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* Add the delta time with the Unix epoch and we have the current
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* UTC time in internal format
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*/
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status = lib$add_times(unix_epoch, deltatime, systime);
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/* Turn the internal time into a time vector */
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status = sys$numtim(&time_values, systime);
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/* Fill in the struct tm with the result */
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result->tm_sec = time_values.second;
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result->tm_min = time_values.minute;
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result->tm_hour = time_values.hour;
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result->tm_mday = time_values.day;
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result->tm_mon = time_values.month - 1;
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result->tm_year = time_values.year - 1900;
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operation = LIB$K_DAY_OF_WEEK;
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status = lib$cvt_from_internal_time(&operation,
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&result->tm_wday, systime);
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result->tm_wday %= 7;
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operation = LIB$K_DAY_OF_YEAR;
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status = lib$cvt_from_internal_time(&operation,
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&result->tm_yday, systime);
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result->tm_yday--;
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result->tm_isdst = 0; /* There's no way to know... */
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ts = result;
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}
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}
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2001-05-16 08:44:09 +00:00
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#endif
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2015-01-22 03:29:12 +00:00
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return ts;
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}
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2008-10-07 22:55:27 +00:00
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2015-01-22 03:29:12 +00:00
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/*
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* Take a tm structure and add an offset to it. This avoids any OS issues
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2008-10-07 22:55:27 +00:00
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* with restricted date types and overflows which cause the year 2038
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* problem.
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*/
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#define SECS_PER_DAY (24 * 60 * 60)
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static long date_to_julian(int y, int m, int d);
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static void julian_to_date(long jd, int *y, int *m, int *d);
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2012-11-19 15:12:07 +00:00
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static int julian_adj(const struct tm *tm, int off_day, long offset_sec,
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2015-01-22 03:29:12 +00:00
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long *pday, int *psec);
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2008-10-07 22:55:27 +00:00
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int OPENSSL_gmtime_adj(struct tm *tm, int off_day, long offset_sec)
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2015-01-22 03:29:12 +00:00
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{
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int time_sec, time_year, time_month, time_day;
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long time_jd;
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/* Convert time and offset into julian day and seconds */
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if (!julian_adj(tm, off_day, offset_sec, &time_jd, &time_sec))
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return 0;
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2012-11-19 15:12:07 +00:00
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2015-01-22 03:29:12 +00:00
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/* Convert Julian day back to date */
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2012-11-19 15:12:07 +00:00
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2015-01-22 03:29:12 +00:00
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julian_to_date(time_jd, &time_year, &time_month, &time_day);
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2012-11-19 15:12:07 +00:00
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2015-01-22 03:29:12 +00:00
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if (time_year < 1900 || time_year > 9999)
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return 0;
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2012-11-19 15:12:07 +00:00
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2015-01-22 03:29:12 +00:00
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/* Update tm structure */
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2012-11-19 15:12:07 +00:00
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2015-01-22 03:29:12 +00:00
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tm->tm_year = time_year - 1900;
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tm->tm_mon = time_month - 1;
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tm->tm_mday = time_day;
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2012-11-19 15:12:07 +00:00
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2015-01-22 03:29:12 +00:00
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tm->tm_hour = time_sec / 3600;
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tm->tm_min = (time_sec / 60) % 60;
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tm->tm_sec = time_sec % 60;
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2012-11-19 15:12:07 +00:00
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2015-01-22 03:29:12 +00:00
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return 1;
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2012-11-19 15:12:07 +00:00
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}
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int OPENSSL_gmtime_diff(int *pday, int *psec,
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2015-01-22 03:29:12 +00:00
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const struct tm *from, const struct tm *to)
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{
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int from_sec, to_sec, diff_sec;
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long from_jd, to_jd, diff_day;
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if (!julian_adj(from, 0, 0, &from_jd, &from_sec))
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return 0;
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if (!julian_adj(to, 0, 0, &to_jd, &to_sec))
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return 0;
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diff_day = to_jd - from_jd;
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diff_sec = to_sec - from_sec;
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/* Adjust differences so both positive or both negative */
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if (diff_day > 0 && diff_sec < 0) {
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diff_day--;
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diff_sec += SECS_PER_DAY;
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}
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if (diff_day < 0 && diff_sec > 0) {
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diff_day++;
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diff_sec -= SECS_PER_DAY;
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}
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if (pday)
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*pday = (int)diff_day;
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if (psec)
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*psec = diff_sec;
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return 1;
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}
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2012-11-19 15:12:07 +00:00
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/* Convert tm structure and offset into julian day and seconds */
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static int julian_adj(const struct tm *tm, int off_day, long offset_sec,
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2015-01-22 03:29:12 +00:00
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long *pday, int *psec)
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{
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int offset_hms, offset_day;
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long time_jd;
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int time_year, time_month, time_day;
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/* split offset into days and day seconds */
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offset_day = offset_sec / SECS_PER_DAY;
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/* Avoid sign issues with % operator */
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offset_hms = offset_sec - (offset_day * SECS_PER_DAY);
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offset_day += off_day;
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/* Add current time seconds to offset */
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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;
|
|
|
|
|
|
|
|
*pday = time_jd;
|
|
|
|
*psec = offset_hms;
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Convert date to and from julian day Uses Fliegel & Van Flandern algorithm
|
2008-10-07 22:55:27 +00:00
|
|
|
*/
|
|
|
|
static long date_to_julian(int y, int m, int d)
|
|
|
|
{
|
2015-01-22 03:29:12 +00:00
|
|
|
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;
|
2008-10-07 22:55:27 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void julian_to_date(long jd, int *y, int *m, int *d)
|
2015-01-22 03:29:12 +00:00
|
|
|
{
|
|
|
|
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;
|
|
|
|
}
|
2008-10-07 22:55:27 +00:00
|
|
|
|
|
|
|
#ifdef OPENSSL_TIME_TEST
|
|
|
|
|
2015-01-22 03:29:12 +00:00
|
|
|
# include <stdio.h>
|
2008-10-07 22:55:27 +00:00
|
|
|
|
2015-01-22 03:29:12 +00:00
|
|
|
/*
|
|
|
|
* Time checking test code. Check times are identical for a wide range of
|
2008-10-07 22:55:27 +00:00
|
|
|
* 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)
|
2015-01-22 03:29:12 +00:00
|
|
|
{
|
|
|
|
long offset;
|
|
|
|
for (offset = 0; offset < 1000000; offset++) {
|
|
|
|
check_time(offset);
|
|
|
|
check_time(-offset);
|
|
|
|
check_time(offset * 1000);
|
|
|
|
check_time(-offset * 1000);
|
|
|
|
}
|
|
|
|
}
|
2008-10-07 22:55:27 +00:00
|
|
|
|
|
|
|
int check_time(long offset)
|
2015-01-22 03:29:12 +00:00
|
|
|
{
|
|
|
|
struct tm tm1, tm2, o1;
|
|
|
|
int off_day, off_sec;
|
|
|
|
long toffset;
|
|
|
|
time_t t1, t2;
|
|
|
|
time(&t1);
|
|
|
|
t2 = t1 + offset;
|
|
|
|
OPENSSL_gmtime(&t2, &tm2);
|
|
|
|
OPENSSL_gmtime(&t1, &tm1);
|
|
|
|
o1 = 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)) {
|
|
|
|
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;
|
|
|
|
}
|
|
|
|
OPENSSL_gmtime_diff(&o1, &tm1, &off_day, &off_sec);
|
|
|
|
toffset = (long)off_day *SECS_PER_DAY + off_sec;
|
|
|
|
if (offset != toffset) {
|
|
|
|
fprintf(stderr, "TIME OFFSET ERROR!!\n");
|
|
|
|
fprintf(stderr, "Expected %ld, Got %ld (%d:%d)\n",
|
|
|
|
offset, toffset, off_day, off_sec);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
return 1;
|
|
|
|
}
|
2008-10-07 22:55:27 +00:00
|
|
|
|
|
|
|
#endif
|