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1 /* crypto/asn1/a_utctm.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
61 #include "internal/cryptlib.h"
62 #include <openssl/asn1.h>
63 #include "asn1_locl.h"
65 int asn1_utctime_to_tm(struct tm
*tm
, const ASN1_UTCTIME
*d
)
67 static const int min
[8] = { 0, 1, 1, 0, 0, 0, 0, 0 };
68 static const int max
[8] = { 99, 12, 31, 23, 59, 59, 12, 59 };
72 if (d
->type
!= V_ASN1_UTCTIME
)
80 for (i
= 0; i
< 6; i
++) {
81 if ((i
== 5) && ((a
[o
] == 'Z') || (a
[o
] == '+') || (a
[o
] == '-'))) {
87 if ((a
[o
] < '0') || (a
[o
] > '9'))
93 if ((a
[o
] < '0') || (a
[o
] > '9'))
95 n
= (n
* 10) + a
[o
] - '0';
99 if ((n
< min
[i
]) || (n
> max
[i
]))
104 tm
->tm_year
= n
< 50 ? n
+ 100 : n
;
126 else if ((a
[o
] == '+') || (a
[o
] == '-')) {
127 int offsign
= a
[o
] == '-' ? -1 : 1, offset
= 0;
131 for (i
= 6; i
< 8; i
++) {
132 if ((a
[o
] < '0') || (a
[o
] > '9'))
136 if ((a
[o
] < '0') || (a
[o
] > '9'))
138 n
= (n
* 10) + a
[o
] - '0';
139 if ((n
< min
[i
]) || (n
> max
[i
]))
149 if (offset
&& !OPENSSL_gmtime_adj(tm
, 0, offset
* offsign
))
157 int ASN1_UTCTIME_check(const ASN1_UTCTIME
*d
)
159 return asn1_utctime_to_tm(NULL
, d
);
162 int ASN1_UTCTIME_set_string(ASN1_UTCTIME
*s
, const char *str
)
166 t
.type
= V_ASN1_UTCTIME
;
167 t
.length
= strlen(str
);
168 t
.data
= (unsigned char *)str
;
169 if (ASN1_UTCTIME_check(&t
)) {
171 if (!ASN1_STRING_set((ASN1_STRING
*)s
,
172 (unsigned char *)str
, t
.length
))
174 s
->type
= V_ASN1_UTCTIME
;
181 ASN1_UTCTIME
*ASN1_UTCTIME_set(ASN1_UTCTIME
*s
, time_t t
)
183 return ASN1_UTCTIME_adj(s
, t
, 0, 0);
186 ASN1_UTCTIME
*ASN1_UTCTIME_adj(ASN1_UTCTIME
*s
, time_t t
,
187 int offset_day
, long offset_sec
)
196 s
= ASN1_UTCTIME_new();
202 ts
= OPENSSL_gmtime(&t
, &data
);
206 if (offset_day
|| offset_sec
) {
207 if (!OPENSSL_gmtime_adj(ts
, offset_day
, offset_sec
))
211 if ((ts
->tm_year
< 50) || (ts
->tm_year
>= 150))
215 if ((p
== NULL
) || ((size_t)s
->length
< len
)) {
216 p
= OPENSSL_malloc(len
);
218 ASN1err(ASN1_F_ASN1_UTCTIME_ADJ
, ERR_R_MALLOC_FAILURE
);
221 OPENSSL_free(s
->data
);
222 s
->data
= (unsigned char *)p
;
225 BIO_snprintf(p
, len
, "%02d%02d%02d%02d%02d%02dZ", ts
->tm_year
% 100,
226 ts
->tm_mon
+ 1, ts
->tm_mday
, ts
->tm_hour
, ts
->tm_min
,
228 s
->length
= strlen(p
);
229 s
->type
= V_ASN1_UTCTIME
;
230 #ifdef CHARSET_EBCDIC_not
231 ebcdic2ascii(s
->data
, s
->data
, s
->length
);
236 ASN1_UTCTIME_free(s
);
240 int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME
*s
, time_t t
)
245 if (!asn1_utctime_to_tm(&stm
, s
))
248 if (!OPENSSL_gmtime(&t
, &ttm
))
251 if (!OPENSSL_gmtime_diff(&day
, &sec
, &ttm
, &stm
))