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
67 #include <openssl/asn1.h>
68 #include "asn1_locl.h"
72 int i2d_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME *a, unsigned char **pp)
74 # ifdef CHARSET_EBCDIC
75 /* KLUDGE! We convert to ascii before writing DER */
78 ASN1_STRING tmpstr = *(ASN1_STRING *)a;
81 ebcdic2ascii(tmp, tmpstr.data, (len >= sizeof tmp) ? sizeof tmp : len);
84 a = (ASN1_GENERALIZEDTIME *)&tmpstr;
86 return (i2d_ASN1_bytes((ASN1_STRING *)a, pp,
87 V_ASN1_GENERALIZEDTIME, V_ASN1_UNIVERSAL));
90 ASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME **a,
94 ASN1_GENERALIZEDTIME *ret = NULL;
97 (ASN1_GENERALIZEDTIME *)d2i_ASN1_bytes((ASN1_STRING **)a, pp, length,
98 V_ASN1_GENERALIZEDTIME,
101 ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME, ERR_R_NESTED_ASN1_ERROR);
104 # ifdef CHARSET_EBCDIC
105 ascii2ebcdic(ret->data, ret->data, ret->length);
107 if (!ASN1_GENERALIZEDTIME_check(ret)) {
108 ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME, ASN1_R_INVALID_TIME_FORMAT);
114 if ((ret != NULL) && ((a == NULL) || (*a != ret)))
115 M_ASN1_GENERALIZEDTIME_free(ret);
121 int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d)
123 static const int min[9] = { 0, 0, 1, 1, 0, 0, 0, 0, 0 };
124 static const int max[9] = { 99, 99, 12, 31, 23, 59, 59, 12, 59 };
128 if (d->type != V_ASN1_GENERALIZEDTIME)
134 * GENERALIZEDTIME is similar to UTCTIME except the year is represented
135 * as YYYY. This stuff treats everything as a two digit field so make
136 * first two fields 00 to 99
140 for (i = 0; i < 7; i++) {
141 if ((i == 6) && ((a[o] == 'Z') || (a[o] == '+') || (a[o] == '-'))) {
147 if ((a[o] < '0') || (a[o] > '9'))
153 if ((a[o] < '0') || (a[o] > '9'))
155 n = (n * 10) + a[o] - '0';
159 if ((n < min[i]) || (n > max[i]))
164 tm->tm_year = n * 100 - 1900;
188 * Optional fractional seconds: decimal point followed by one or more
195 while ((a[o] >= '0') && (a[o] <= '9') && (o <= l))
197 /* Must have at least one digit after decimal point */
204 else if ((a[o] == '+') || (a[o] == '-')) {
205 int offsign = a[o] == '-' ? -1 : 1, offset = 0;
209 for (i = 7; i < 9; i++) {
210 if ((a[o] < '0') || (a[o] > '9'))
214 if ((a[o] < '0') || (a[o] > '9'))
216 n = (n * 10) + a[o] - '0';
217 if ((n < min[i]) || (n > max[i]))
227 if (offset && !OPENSSL_gmtime_adj(tm, 0, offset * offsign))
230 /* Missing time zone information. */
238 int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *d)
240 return asn1_generalizedtime_to_tm(NULL, d);
243 int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str)
245 ASN1_GENERALIZEDTIME t;
247 t.type = V_ASN1_GENERALIZEDTIME;
248 t.length = strlen(str);
249 t.data = (unsigned char *)str;
250 if (ASN1_GENERALIZEDTIME_check(&t)) {
252 if (!ASN1_STRING_set((ASN1_STRING *)s,
253 (unsigned char *)str, t.length))
255 s->type = V_ASN1_GENERALIZEDTIME;
262 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
265 return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0);
268 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
269 time_t t, int offset_day,
278 s = M_ASN1_GENERALIZEDTIME_new();
282 ts = OPENSSL_gmtime(&t, &data);
286 if (offset_day || offset_sec) {
287 if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
292 if ((p == NULL) || ((size_t)s->length < len)) {
293 p = OPENSSL_malloc(len);
295 ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_ADJ, ERR_R_MALLOC_FAILURE);
299 OPENSSL_free(s->data);
300 s->data = (unsigned char *)p;
303 BIO_snprintf(p, len, "%04d%02d%02d%02d%02d%02dZ", ts->tm_year + 1900,
304 ts->tm_mon + 1, ts->tm_mday, ts->tm_hour, ts->tm_min,
306 s->length = strlen(p);
307 s->type = V_ASN1_GENERALIZEDTIME;
308 #ifdef CHARSET_EBCDIC_not
309 ebcdic2ascii(s->data, s->data, s->length);