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1 | /* crypto/o_time.c -*- mode:C; c-file-style: "eay" -*- */ |
2 | /* Written by Richard Levitte (richard@levitte.org) for the OpenSSL | |
3 | * project 2001. | |
4 | */ | |
5 | /* ==================================================================== | |
6 | * Copyright (c) 2001 The OpenSSL Project. All rights reserved. | |
7 | * | |
8 | * Redistribution and use in source and binary forms, with or without | |
9 | * modification, are permitted provided that the following conditions | |
10 | * are met: | |
11 | * | |
12 | * 1. Redistributions of source code must retain the above copyright | |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * | |
15 | * 2. Redistributions in binary form must reproduce the above copyright | |
16 | * notice, this list of conditions and the following disclaimer in | |
17 | * the documentation and/or other materials provided with the | |
18 | * distribution. | |
19 | * | |
20 | * 3. All advertising materials mentioning features or use of this | |
21 | * software must display the following acknowledgment: | |
22 | * "This product includes software developed by the OpenSSL Project | |
23 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | |
24 | * | |
25 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
26 | * endorse or promote products derived from this software without | |
27 | * prior written permission. For written permission, please contact | |
28 | * licensing@OpenSSL.org. | |
29 | * | |
30 | * 5. Products derived from this software may not be called "OpenSSL" | |
31 | * nor may "OpenSSL" appear in their names without prior written | |
32 | * permission of the OpenSSL Project. | |
33 | * | |
34 | * 6. Redistributions of any form whatsoever must retain the following | |
35 | * acknowledgment: | |
36 | * "This product includes software developed by the OpenSSL Project | |
37 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
38 | * | |
39 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
40 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
41 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
42 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
43 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
44 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
45 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
46 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
47 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
48 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
49 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
50 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
51 | * ==================================================================== | |
52 | * | |
53 | * This product includes cryptographic software written by Eric Young | |
54 | * (eay@cryptsoft.com). This product includes software written by Tim | |
55 | * 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 | ||
72 | struct 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$trnlnm(0, &tabnam, &lognam, 0, itemlist); | |
113 | if (!(status & 1)) | |
114 | return NULL; | |
115 | logvalue[reslen] = '\0'; | |
116 | ||
117 | t = *timer; | |
118 | ||
119 | /* The following is extracted from the DEC C header time.h */ | |
120 | /* | |
121 | ** Beginning in OpenVMS Version 7.0 mktime, time, ctime, strftime | |
122 | ** have two implementations. One implementation is provided | |
123 | ** for compatibility and deals with time in terms of local time, | |
124 | ** the other __utc_* deals with time in terms of UTC. | |
125 | */ | |
126 | /* We use the same conditions as in said time.h to check if we should | |
127 | assume that t contains local time (and should therefore be adjusted) | |
128 | or UTC (and should therefore be left untouched). */ | |
129 | #if __CRTL_VER < 70000000 || defined _VMS_V6_SOURCE | |
130 | /* Get the numerical value of the equivalence string */ | |
131 | status = atoi(logvalue); | |
132 | ||
133 | /* and use it to move time to GMT */ | |
134 | t -= status; | |
135 | #endif | |
136 | ||
137 | /* then convert the result to the time structure */ | |
138 | ||
139 | /* Since there was no gmtime_r() to do this stuff for us, | |
140 | we have to do it the hard way. */ | |
141 | { | |
142 | /* The VMS epoch is the astronomical Smithsonian date, | |
143 | if I remember correctly, which is November 17, 1858. | |
144 | Furthermore, time is measure in thenths of microseconds | |
145 | and stored in quadwords (64 bit integers). unix_epoch | |
146 | below is January 1st 1970 expressed as a VMS time. The | |
147 | following code was used to get this number: | |
148 | ||
149 | #include <stdio.h> | |
150 | #include <stdlib.h> | |
151 | #include <lib$routines.h> | |
152 | #include <starlet.h> | |
153 | ||
154 | main() | |
155 | { | |
156 | unsigned long systime[2]; | |
157 | unsigned short epoch_values[7] = | |
158 | { 1970, 1, 1, 0, 0, 0, 0 }; | |
159 | ||
160 | lib$cvt_vectim(epoch_values, systime); | |
161 | ||
162 | printf("%u %u", systime[0], systime[1]); | |
163 | } | |
164 | */ | |
165 | unsigned long unix_epoch[2] = { 1273708544, 8164711 }; | |
166 | unsigned long deltatime[2]; | |
167 | unsigned long systime[2]; | |
168 | struct vms_vectime | |
169 | { | |
170 | short year, month, day, hour, minute, second, | |
171 | centi_second; | |
172 | } time_values; | |
173 | long operation; | |
174 | ||
175 | /* Turn the number of seconds since January 1st 1970 to | |
176 | an internal delta time. | |
177 | Note that lib$cvt_to_internal_time() will assume | |
178 | that t is signed, and will therefore break on 32-bit | |
179 | systems some time in 2038. | |
180 | */ | |
181 | operation = LIB$K_DELTA_SECONDS; | |
182 | status = lib$cvt_to_internal_time(&operation, | |
183 | &t, deltatime); | |
184 | ||
185 | /* Add the delta time with the Unix epoch and we have | |
186 | the current UTC time in internal format */ | |
187 | status = lib$add_times(unix_epoch, deltatime, systime); | |
188 | ||
189 | /* Turn the internal time into a time vector */ | |
190 | status = sys$numtim(&time_values, systime); | |
191 | ||
192 | /* Fill in the struct tm with the result */ | |
193 | result->tm_sec = time_values.second; | |
194 | result->tm_min = time_values.minute; | |
195 | result->tm_hour = time_values.hour; | |
196 | result->tm_mday = time_values.day; | |
197 | result->tm_mon = time_values.month - 1; | |
198 | result->tm_year = time_values.year - 1900; | |
199 | ||
200 | operation = LIB$K_DAY_OF_WEEK; | |
201 | status = lib$cvt_from_internal_time(&operation, | |
202 | &result->tm_wday, systime); | |
203 | result->tm_wday %= 7; | |
204 | ||
205 | operation = LIB$K_DAY_OF_YEAR; | |
206 | status = lib$cvt_from_internal_time(&operation, | |
207 | &result->tm_yday, systime); | |
208 | result->tm_yday--; | |
209 | ||
210 | result->tm_isdst = 0; /* There's no way to know... */ | |
211 | ||
212 | ts = result; | |
213 | } | |
214 | } | |
215 | #endif | |
216 | return ts; | |
217 | } |