1 /* crypto/asn1/a_gentm.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.]
60 * GENERALIZEDTIME implementation, written by Steve Henson. Based on UTCTIME
65 #include "internal/cryptlib.h"
66 #include <openssl/asn1.h>
67 #include "asn1_locl.h"
69 int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d)
71 static const int min[9] = { 0, 0, 1, 1, 0, 0, 0, 0, 0 };
72 static const int max[9] = { 99, 99, 12, 31, 23, 59, 59, 12, 59 };
76 if (d->type != V_ASN1_GENERALIZEDTIME)
82 * GENERALIZEDTIME is similar to UTCTIME except the year is represented
83 * as YYYY. This stuff treats everything as a two digit field so make
84 * first two fields 00 to 99
88 for (i = 0; i < 7; i++) {
89 if ((i == 6) && ((a[o] == 'Z') || (a[o] == '+') || (a[o] == '-'))) {
95 if ((a[o] < '0') || (a[o] > '9'))
101 if ((a[o] < '0') || (a[o] > '9'))
103 n = (n * 10) + a[o] - '0';
107 if ((n < min[i]) || (n > max[i]))
112 tm->tm_year = n * 100 - 1900;
136 * Optional fractional seconds: decimal point followed by one or more
143 while ((a[o] >= '0') && (a[o] <= '9') && (o <= l))
145 /* Must have at least one digit after decimal point */
152 else if ((a[o] == '+') || (a[o] == '-')) {
153 int offsign = a[o] == '-' ? -1 : 1, offset = 0;
157 for (i = 7; i < 9; i++) {
158 if ((a[o] < '0') || (a[o] > '9'))
162 if ((a[o] < '0') || (a[o] > '9'))
164 n = (n * 10) + a[o] - '0';
165 if ((n < min[i]) || (n > max[i]))
175 if (offset && !OPENSSL_gmtime_adj(tm, 0, offset * offsign))
178 /* Missing time zone information. */
186 int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *d)
188 return asn1_generalizedtime_to_tm(NULL, d);
191 int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str)
193 ASN1_GENERALIZEDTIME t;
195 t.type = V_ASN1_GENERALIZEDTIME;
196 t.length = strlen(str);
197 t.data = (unsigned char *)str;
198 if (ASN1_GENERALIZEDTIME_check(&t)) {
200 if (!ASN1_STRING_set((ASN1_STRING *)s,
201 (unsigned char *)str, t.length))
203 s->type = V_ASN1_GENERALIZEDTIME;
210 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
213 return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0);
216 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
217 time_t t, int offset_day,
226 s = ASN1_GENERALIZEDTIME_new();
230 ts = OPENSSL_gmtime(&t, &data);
234 if (offset_day || offset_sec) {
235 if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
240 if ((p == NULL) || ((size_t)s->length < len)) {
241 p = OPENSSL_malloc(len);
243 ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_ADJ, ERR_R_MALLOC_FAILURE);
246 OPENSSL_free(s->data);
247 s->data = (unsigned char *)p;
250 BIO_snprintf(p, len, "%04d%02d%02d%02d%02d%02dZ", ts->tm_year + 1900,
251 ts->tm_mon + 1, ts->tm_mday, ts->tm_hour, ts->tm_min,
253 s->length = strlen(p);
254 s->type = V_ASN1_GENERALIZEDTIME;
255 #ifdef CHARSET_EBCDIC_not
256 ebcdic2ascii(s->data, s->data, s->length);
261 const char *_asn1_mon[12] = {
262 "Jan", "Feb", "Mar", "Apr", "May", "Jun",
263 "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
266 int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
271 int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
276 v = (char *)tm->data;
282 for (i = 0; i < 12; i++)
283 if ((v[i] > '9') || (v[i] < '0'))
285 y = (v[0] - '0') * 1000 + (v[1] - '0') * 100
286 + (v[2] - '0') * 10 + (v[3] - '0');
287 M = (v[4] - '0') * 10 + (v[5] - '0');
288 if ((M > 12) || (M < 1))
290 d = (v[6] - '0') * 10 + (v[7] - '0');
291 h = (v[8] - '0') * 10 + (v[9] - '0');
292 m = (v[10] - '0') * 10 + (v[11] - '0');
293 if (tm->length >= 14 &&
294 (v[12] >= '0') && (v[12] <= '9') &&
295 (v[13] >= '0') && (v[13] <= '9')) {
296 s = (v[12] - '0') * 10 + (v[13] - '0');
297 /* Check for fractions of seconds. */
298 if (tm->length >= 15 && v[14] == '.') {
300 f = &v[14]; /* The decimal point. */
302 while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
307 if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s",
308 _asn1_mon[M - 1], d, h, m, s, f_len, f, y,
309 (gmt) ? " GMT" : "") <= 0)
314 BIO_write(bp, "Bad time value", 14);