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);