o_time.c revision 120631
1193323Sed/* crypto/o_time.c -*- mode:C; c-file-style: "eay" -*- */ 2193323Sed/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL 3193323Sed * project 2001. 4193323Sed */ 5193323Sed/* ==================================================================== 6193323Sed * Copyright (c) 2001 The OpenSSL Project. All rights reserved. 7193323Sed * 8193323Sed * Redistribution and use in source and binary forms, with or without 9193323Sed * modification, are permitted provided that the following conditions 10193323Sed * are met: 11193323Sed * 12193323Sed * 1. Redistributions of source code must retain the above copyright 13193323Sed * notice, this list of conditions and the following disclaimer. 14193323Sed * 15193323Sed * 2. Redistributions in binary form must reproduce the above copyright 16193323Sed * notice, this list of conditions and the following disclaimer in 17193323Sed * the documentation and/or other materials provided with the 18193323Sed * distribution. 19235633Sdim * 20193323Sed * 3. All advertising materials mentioning features or use of this 21245431Sdim * software must display the following acknowledgment: 22245431Sdim * "This product includes software developed by the OpenSSL Project 23245431Sdim * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24245431Sdim * 25245431Sdim * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26245431Sdim * endorse or promote products derived from this software without 27245431Sdim * prior written permission. For written permission, please contact 28245431Sdim * licensing@OpenSSL.org. 29245431Sdim * 30245431Sdim * 5. Products derived from this software may not be called "OpenSSL" 31245431Sdim * nor may "OpenSSL" appear in their names without prior written 32245431Sdim * permission of the OpenSSL Project. 33245431Sdim * 34193323Sed * 6. Redistributions of any form whatsoever must retain the following 35193323Sed * acknowledgment: 36193323Sed * "This product includes software developed by the OpenSSL Project 37193323Sed * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38193323Sed * 39193323Sed * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40193323Sed * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41193323Sed * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42193323Sed * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43193323Sed * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44193323Sed * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45193323Sed * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46193323Sed * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47193323Sed * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48193323Sed * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49193323Sed * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50193323Sed * OF THE POSSIBILITY OF SUCH DAMAGE. 51193323Sed * ==================================================================== 52193323Sed * 53193323Sed * This product includes cryptographic software written by Eric Young 54193323Sed * (eay@cryptsoft.com). This product includes software written by Tim 55193323Sed * Hudson (tjh@cryptsoft.com). 56 * 57 */ 58 59#include <openssl/e_os2.h> 60#include <string.h> 61#include "o_time.h" 62 63#ifdef OPENSSL_SYS_VMS 64# include <libdtdef.h> 65# include <lib$routines.h> 66# include <lnmdef.h> 67# include <starlet.h> 68# include <descrip.h> 69# include <stdlib.h> 70#endif 71 72struct tm *OPENSSL_gmtime(const time_t *timer, struct tm *result) 73 { 74 struct tm *ts = NULL; 75 76#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) 77 /* should return &data, but doesn't on some systems, 78 so we don't even look at the return value */ 79 gmtime_r(timer,result); 80 ts = result; 81#elif !defined(OPENSSL_SYS_VMS) 82 ts = gmtime(timer); 83 if (ts == NULL) 84 return NULL; 85 86 memcpy(result, ts, sizeof(struct tm)); 87 ts = result; 88#endif 89#ifdef OPENSSL_SYS_VMS 90 if (ts == NULL) 91 { 92 static $DESCRIPTOR(tabnam,"LNM$DCL_LOGICAL"); 93 static $DESCRIPTOR(lognam,"SYS$TIMEZONE_DIFFERENTIAL"); 94 char logvalue[256]; 95 unsigned int reslen = 0; 96 struct { 97 short buflen; 98 short code; 99 void *bufaddr; 100 unsigned int *reslen; 101 } itemlist[] = { 102 { 0, LNM$_STRING, 0, 0 }, 103 { 0, 0, 0, 0 }, 104 }; 105 int status; 106 time_t t; 107 108 /* Get the value for SYS$TIMEZONE_DIFFERENTIAL */ 109 itemlist[0].buflen = sizeof(logvalue); 110 itemlist[0].bufaddr = logvalue; 111 itemlist[0].reslen = &reslen; 112 status = sys$trnlnm(0, &tabnam, &lognam, 0, itemlist); 113 if (!(status & 1)) 114 return NULL; 115 logvalue[reslen] = '\0'; 116 117 /* Get the numerical value of the equivalence string */ 118 status = atoi(logvalue); 119 120 /* and use it to move time to GMT */ 121 t = *timer - status; 122 123 /* then convert the result to the time structure */ 124#ifndef OPENSSL_THREADS 125 ts=(struct tm *)localtime(&t); 126#else 127 /* Since there was no gmtime_r() to do this stuff for us, 128 we have to do it the hard way. */ 129 { 130 /* The VMS epoch is the astronomical Smithsonian date, 131 if I remember correctly, which is November 17, 1858. 132 Furthermore, time is measure in thenths of microseconds 133 and stored in quadwords (64 bit integers). unix_epoch 134 below is January 1st 1970 expressed as a VMS time. The 135 following code was used to get this number: 136 137 #include <stdio.h> 138 #include <stdlib.h> 139 #include <lib$routines.h> 140 #include <starlet.h> 141 142 main() 143 { 144 unsigned long systime[2]; 145 unsigned short epoch_values[7] = 146 { 1970, 1, 1, 0, 0, 0, 0 }; 147 148 lib$cvt_vectim(epoch_values, systime); 149 150 printf("%u %u", systime[0], systime[1]); 151 } 152 */ 153 unsigned long unix_epoch[2] = { 1273708544, 8164711 }; 154 unsigned long deltatime[2]; 155 unsigned long systime[2]; 156 struct vms_vectime 157 { 158 short year, month, day, hour, minute, second, 159 centi_second; 160 } time_values; 161 long operation; 162 163 /* Turn the number of seconds since January 1st 1970 to 164 an internal delta time. 165 Note that lib$cvt_to_internal_time() will assume 166 that t is signed, and will therefore break on 32-bit 167 systems some time in 2038. 168 */ 169 operation = LIB$K_DELTA_SECONDS; 170 status = lib$cvt_to_internal_time(&operation, 171 &t, deltatime); 172 173 /* Add the delta time with the Unix epoch and we have 174 the current UTC time in internal format */ 175 status = lib$add_times(unix_epoch, deltatime, systime); 176 177 /* Turn the internal time into a time vector */ 178 status = sys$numtim(&time_values, systime); 179 180 /* Fill in the struct tm with the result */ 181 result->tm_sec = time_values.second; 182 result->tm_min = time_values.minute; 183 result->tm_hour = time_values.hour; 184 result->tm_mday = time_values.day; 185 result->tm_mon = time_values.month - 1; 186 result->tm_year = time_values.year - 1900; 187 188 operation = LIB$K_DAY_OF_WEEK; 189 status = lib$cvt_from_internal_time(&operation, 190 &result->tm_wday, systime); 191 result->tm_wday %= 7; 192 193 operation = LIB$K_DAY_OF_YEAR; 194 status = lib$cvt_from_internal_time(&operation, 195 &result->tm_yday, systime); 196 result->tm_yday--; 197 198 result->tm_isdst = 0; /* There's no way to know... */ 199 200 ts = result; 201#endif 202 } 203 } 204#endif 205 return ts; 206 } 207