/* 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 #include #include "o_time.h" #ifdef OPENSSL_SYS_VMS # include # include # include # include # include # include #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$trnlnm(0, &tabnam, &lognam, 0, itemlist); if (!(status & 1)) return NULL; logvalue[reslen] = '\0'; t = *timer; /* The following is extracted from the DEC C header time.h */ /* ** Beginning in OpenVMS Version 7.0 mktime, time, ctime, strftime ** have two implementations. One implementation is provided ** for compatibility and deals with time in terms of local time, ** the other __utc_* deals with time in terms of UTC. */ /* We use the same conditions as in said time.h to check if we should assume that t contains local time (and should therefore be adjusted) or UTC (and should therefore be left untouched). */ #if __CRTL_VER < 70000000 || defined _VMS_V6_SOURCE /* Get the numerical value of the equivalence string */ status = atoi(logvalue); /* and use it to move time to GMT */ t -= status; #endif /* then convert the result to the time structure */ /* Since there was no gmtime_r() to do this stuff for us, we have to do it the hard way. */ { /* The VMS epoch is the astronomical Smithsonian date, if I remember correctly, which is November 17, 1858. Furthermore, time is measure in thenths of microseconds and stored in quadwords (64 bit integers). unix_epoch below is January 1st 1970 expressed as a VMS time. The following code was used to get this number: #include #include #include #include main() { unsigned long systime[2]; unsigned short epoch_values[7] = { 1970, 1, 1, 0, 0, 0, 0 }; lib$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; }