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git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/asn1/a_utctm.c
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.]
60 #include "internal/cryptlib.h"
61 #include <openssl/asn1.h>
62 #include "asn1_locl.h"
64 int asn1_utctime_to_tm(struct tm
*tm
, const ASN1_UTCTIME
*d
)
66 static const int min
[8] = { 0, 1, 1, 0, 0, 0, 0, 0 };
67 static const int max
[8] = { 99, 12, 31, 23, 59, 59, 12, 59 };
71 if (d
->type
!= V_ASN1_UTCTIME
)
79 for (i
= 0; i
< 6; i
++) {
80 if ((i
== 5) && ((a
[o
] == 'Z') || (a
[o
] == '+') || (a
[o
] == '-'))) {
86 if ((a
[o
] < '0') || (a
[o
] > '9'))
92 if ((a
[o
] < '0') || (a
[o
] > '9'))
94 n
= (n
* 10) + a
[o
] - '0';
98 if ((n
< min
[i
]) || (n
> max
[i
]))
103 tm
->tm_year
= n
< 50 ? n
+ 100 : n
;
125 else if ((a
[o
] == '+') || (a
[o
] == '-')) {
126 int offsign
= a
[o
] == '-' ? -1 : 1, offset
= 0;
130 for (i
= 6; i
< 8; i
++) {
131 if ((a
[o
] < '0') || (a
[o
] > '9'))
135 if ((a
[o
] < '0') || (a
[o
] > '9'))
137 n
= (n
* 10) + a
[o
] - '0';
138 if ((n
< min
[i
]) || (n
> max
[i
]))
148 if (offset
&& !OPENSSL_gmtime_adj(tm
, 0, offset
* offsign
))
156 int ASN1_UTCTIME_check(const ASN1_UTCTIME
*d
)
158 return asn1_utctime_to_tm(NULL
, d
);
161 int ASN1_UTCTIME_set_string(ASN1_UTCTIME
*s
, const char *str
)
165 t
.type
= V_ASN1_UTCTIME
;
166 t
.length
= strlen(str
);
167 t
.data
= (unsigned char *)str
;
168 if (ASN1_UTCTIME_check(&t
)) {
170 if (!ASN1_STRING_set((ASN1_STRING
*)s
,
171 (unsigned char *)str
, t
.length
))
173 s
->type
= V_ASN1_UTCTIME
;
180 ASN1_UTCTIME
*ASN1_UTCTIME_set(ASN1_UTCTIME
*s
, time_t t
)
182 return ASN1_UTCTIME_adj(s
, t
, 0, 0);
185 ASN1_UTCTIME
*ASN1_UTCTIME_adj(ASN1_UTCTIME
*s
, time_t t
,
186 int offset_day
, long offset_sec
)
195 s
= ASN1_UTCTIME_new();
201 ts
= OPENSSL_gmtime(&t
, &data
);
205 if (offset_day
|| offset_sec
) {
206 if (!OPENSSL_gmtime_adj(ts
, offset_day
, offset_sec
))
210 if ((ts
->tm_year
< 50) || (ts
->tm_year
>= 150))
214 if ((p
== NULL
) || ((size_t)s
->length
< len
)) {
215 p
= OPENSSL_malloc(len
);
217 ASN1err(ASN1_F_ASN1_UTCTIME_ADJ
, ERR_R_MALLOC_FAILURE
);
220 OPENSSL_free(s
->data
);
221 s
->data
= (unsigned char *)p
;
224 BIO_snprintf(p
, len
, "%02d%02d%02d%02d%02d%02dZ", ts
->tm_year
% 100,
225 ts
->tm_mon
+ 1, ts
->tm_mday
, ts
->tm_hour
, ts
->tm_min
,
227 s
->length
= strlen(p
);
228 s
->type
= V_ASN1_UTCTIME
;
229 #ifdef CHARSET_EBCDIC_not
230 ebcdic2ascii(s
->data
, s
->data
, s
->length
);
235 ASN1_UTCTIME_free(s
);
239 int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME
*s
, time_t t
)
244 if (!asn1_utctime_to_tm(&stm
, s
))
247 if (!OPENSSL_gmtime(&t
, &ttm
))
250 if (!OPENSSL_gmtime_diff(&day
, &sec
, &ttm
, &stm
))
264 int ASN1_UTCTIME_print(BIO
*bp
, const ASN1_UTCTIME
*tm
)
269 int y
= 0, M
= 0, d
= 0, h
= 0, m
= 0, s
= 0;
272 v
= (const char *)tm
->data
;
278 for (i
= 0; i
< 10; i
++)
279 if ((v
[i
] > '9') || (v
[i
] < '0'))
281 y
= (v
[0] - '0') * 10 + (v
[1] - '0');
284 M
= (v
[2] - '0') * 10 + (v
[3] - '0');
285 if ((M
> 12) || (M
< 1))
287 d
= (v
[4] - '0') * 10 + (v
[5] - '0');
288 h
= (v
[6] - '0') * 10 + (v
[7] - '0');
289 m
= (v
[8] - '0') * 10 + (v
[9] - '0');
290 if (tm
->length
>= 12 &&
291 (v
[10] >= '0') && (v
[10] <= '9') && (v
[11] >= '0') && (v
[11] <= '9'))
292 s
= (v
[10] - '0') * 10 + (v
[11] - '0');
294 if (BIO_printf(bp
, "%s %2d %02d:%02d:%02d %d%s",
295 _asn1_mon
[M
- 1], d
, h
, m
, s
, y
+ 1900,
296 (gmt
) ? " GMT" : "") <= 0)
301 BIO_write(bp
, "Bad time value", 14);