1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
59 * GENERALIZEDTIME implementation, written by Steve Henson. Based on UTCTIME
64 #include "internal/cryptlib.h"
65 #include <openssl/asn1.h>
66 #include "asn1_locl.h"
68 int asn1_generalizedtime_to_tm(struct tm
*tm
, const ASN1_GENERALIZEDTIME
*d
)
70 static const int min
[9] = { 0, 0, 1, 1, 0, 0, 0, 0, 0 };
71 static const int max
[9] = { 99, 99, 12, 31, 23, 59, 59, 12, 59 };
75 if (d
->type
!= V_ASN1_GENERALIZEDTIME
)
81 * GENERALIZEDTIME is similar to UTCTIME except the year is represented
82 * as YYYY. This stuff treats everything as a two digit field so make
83 * first two fields 00 to 99
87 for (i
= 0; i
< 7; i
++) {
88 if ((i
== 6) && ((a
[o
] == 'Z') || (a
[o
] == '+') || (a
[o
] == '-'))) {
94 if ((a
[o
] < '0') || (a
[o
] > '9'))
100 if ((a
[o
] < '0') || (a
[o
] > '9'))
102 n
= (n
* 10) + a
[o
] - '0';
106 if ((n
< min
[i
]) || (n
> max
[i
]))
111 tm
->tm_year
= n
* 100 - 1900;
135 * Optional fractional seconds: decimal point followed by one or more
142 while ((a
[o
] >= '0') && (a
[o
] <= '9') && (o
<= l
))
144 /* Must have at least one digit after decimal point */
151 else if ((a
[o
] == '+') || (a
[o
] == '-')) {
152 int offsign
= a
[o
] == '-' ? -1 : 1, offset
= 0;
156 for (i
= 7; i
< 9; i
++) {
157 if ((a
[o
] < '0') || (a
[o
] > '9'))
161 if ((a
[o
] < '0') || (a
[o
] > '9'))
163 n
= (n
* 10) + a
[o
] - '0';
164 if ((n
< min
[i
]) || (n
> max
[i
]))
174 if (offset
&& !OPENSSL_gmtime_adj(tm
, 0, offset
* offsign
))
177 /* Missing time zone information. */
185 int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME
*d
)
187 return asn1_generalizedtime_to_tm(NULL
, d
);
190 int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME
*s
, const char *str
)
192 ASN1_GENERALIZEDTIME t
;
194 t
.type
= V_ASN1_GENERALIZEDTIME
;
195 t
.length
= strlen(str
);
196 t
.data
= (unsigned char *)str
;
197 if (ASN1_GENERALIZEDTIME_check(&t
)) {
199 if (!ASN1_STRING_set((ASN1_STRING
*)s
,
200 (unsigned char *)str
, t
.length
))
202 s
->type
= V_ASN1_GENERALIZEDTIME
;
209 ASN1_GENERALIZEDTIME
*ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME
*s
,
212 return ASN1_GENERALIZEDTIME_adj(s
, t
, 0, 0);
215 ASN1_GENERALIZEDTIME
*ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME
*s
,
216 time_t t
, int offset_day
,
225 s
= ASN1_GENERALIZEDTIME_new();
229 ts
= OPENSSL_gmtime(&t
, &data
);
233 if (offset_day
|| offset_sec
) {
234 if (!OPENSSL_gmtime_adj(ts
, offset_day
, offset_sec
))
239 if ((p
== NULL
) || ((size_t)s
->length
< len
)) {
240 p
= OPENSSL_malloc(len
);
242 ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_ADJ
, ERR_R_MALLOC_FAILURE
);
245 OPENSSL_free(s
->data
);
246 s
->data
= (unsigned char *)p
;
249 BIO_snprintf(p
, len
, "%04d%02d%02d%02d%02d%02dZ", ts
->tm_year
+ 1900,
250 ts
->tm_mon
+ 1, ts
->tm_mday
, ts
->tm_hour
, ts
->tm_min
,
252 s
->length
= strlen(p
);
253 s
->type
= V_ASN1_GENERALIZEDTIME
;
254 #ifdef CHARSET_EBCDIC_not
255 ebcdic2ascii(s
->data
, s
->data
, s
->length
);
260 const char *_asn1_mon
[12] = {
261 "Jan", "Feb", "Mar", "Apr", "May", "Jun",
262 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
265 int ASN1_GENERALIZEDTIME_print(BIO
*bp
, const ASN1_GENERALIZEDTIME
*tm
)
270 int y
= 0, M
= 0, d
= 0, h
= 0, m
= 0, s
= 0;
275 v
= (char *)tm
->data
;
281 for (i
= 0; i
< 12; i
++)
282 if ((v
[i
] > '9') || (v
[i
] < '0'))
284 y
= (v
[0] - '0') * 1000 + (v
[1] - '0') * 100
285 + (v
[2] - '0') * 10 + (v
[3] - '0');
286 M
= (v
[4] - '0') * 10 + (v
[5] - '0');
287 if ((M
> 12) || (M
< 1))
289 d
= (v
[6] - '0') * 10 + (v
[7] - '0');
290 h
= (v
[8] - '0') * 10 + (v
[9] - '0');
291 m
= (v
[10] - '0') * 10 + (v
[11] - '0');
292 if (tm
->length
>= 14 &&
293 (v
[12] >= '0') && (v
[12] <= '9') &&
294 (v
[13] >= '0') && (v
[13] <= '9')) {
295 s
= (v
[12] - '0') * 10 + (v
[13] - '0');
296 /* Check for fractions of seconds. */
297 if (tm
->length
>= 15 && v
[14] == '.') {
299 f
= &v
[14]; /* The decimal point. */
301 while (14 + f_len
< l
&& f
[f_len
] >= '0' && f
[f_len
] <= '9')
306 if (BIO_printf(bp
, "%s %2d %02d:%02d:%02d%.*s %d%s",
307 _asn1_mon
[M
- 1], d
, h
, m
, s
, f_len
, f
, y
,
308 (gmt
) ? " GMT" : "") <= 0)
313 BIO_write(bp
, "Bad time value", 14);