o_time.c
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- /* crypto/o_time.c -*- mode:C; c-file-style: "eay" -*- */
- /* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
- * project 2001.
- */
- /* ====================================================================
- * 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(__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$trnlnm(0, &tabnam, &lognam, 0, itemlist);
- if (!(status & 1))
- return NULL;
- logvalue[reslen] = ' ';
- t = *timer;
- /* The following is extracted from the DEC C header time.h */
- /*
- ** Beginning in OpenVMS Version 7.0 mktime, time, ctime, strftime
- ** have two implementations. One implementation is provided
- ** for compatibility and deals with time in terms of local time,
- ** the other __utc_* deals with time in terms of UTC.
- */
- /* We use the same conditions as in said time.h to check if we should
- assume that t contains local time (and should therefore be adjusted)
- or UTC (and should therefore be left untouched). */
- #if __CRTL_VER < 70000000 || defined _VMS_V6_SOURCE
- /* Get the numerical value of the equivalence string */
- status = atoi(logvalue);
- /* and use it to move time to GMT */
- t -= status;
- #endif
- /* then convert the result to the time structure */
- /* Since there was no gmtime_r() to do this stuff for us,
- we have to do it the hard way. */
- {
- /* The VMS epoch is the astronomical Smithsonian date,
- if I remember correctly, which is November 17, 1858.
- Furthermore, time is measure in thenths of microseconds
- and stored in quadwords (64 bit integers). unix_epoch
- below is January 1st 1970 expressed as a VMS time. The
- following code was used to get this number:
- #include <stdio.h>
- #include <stdlib.h>
- #include <lib$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;
- }