217 lines
7.2 KiB
C
217 lines
7.2 KiB
C
/* crypto/o_time.c -*- mode:C; c-file-style: "eay" -*- */
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/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
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* project 2001.
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*/
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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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* notice, this list of conditions and the following disclaimer.
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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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#include <string.h>
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#include "o_time.h"
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#ifdef OPENSSL_SYS_VMS
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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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#endif
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struct tm *OPENSSL_gmtime(const time_t *timer, struct tm *result)
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{
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struct tm *ts = NULL;
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#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)
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/* should return &data, but doesn't on some systems,
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so we don't even look at the return value */
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gmtime_r(timer,result);
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ts = result;
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#elif !defined(OPENSSL_SYS_VMS)
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ts = gmtime(timer);
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if (ts == NULL)
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return NULL;
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memcpy(result, ts, sizeof(struct tm));
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ts = result;
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#endif
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#ifdef OPENSSL_SYS_VMS
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if (ts == NULL)
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{
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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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{ 0, LNM$_STRING, 0, 0 },
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{ 0, 0, 0, 0 },
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};
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int status;
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time_t t;
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/* Get the value for SYS$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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/* The following is extracted from the DEC C header time.h */
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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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/* 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 adjusted)
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or UTC (and should therefore be left untouched). */
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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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/* then convert the result to the time structure */
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/* Since there was no gmtime_r() to do this stuff for us,
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we have to do it the hard way. */
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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$cvt_vectim(epoch_values, systime);
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printf("%u %u", systime[0], systime[1]);
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}
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*/
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unsigned long unix_epoch[2] = { 1273708544, 8164711 };
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unsigned long deltatime[2];
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unsigned long systime[2];
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struct vms_vectime
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{
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short year, month, day, hour, minute, second,
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centi_second;
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} time_values;
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long operation;
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/* Turn the number of seconds since January 1st 1970 to
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an internal delta time.
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Note that lib$cvt_to_internal_time() will assume
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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,
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&t, deltatime);
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/* Add the delta time with the Unix epoch and we have
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the current UTC time in internal format */
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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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#endif
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return ts;
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}
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