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.] */
57 #include <openssl/asn1.h>
59 #include <openssl/err.h>
60 #include <openssl/mem.h>
61 #include <openssl/time_support.h>
64 int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d)
66 static const int min[9]={ 0, 0, 1, 1, 0, 0, 0, 0, 0};
67 static const int max[9]={99, 99,12,31,23,59,59,12,59};
71 if (d->type != V_ASN1_GENERALIZEDTIME) return(0);
75 /* GENERALIZEDTIME is similar to UTCTIME except the year is
76 * represented as YYYY. This stuff treats everything as a two digit
77 * field so make first two fields 00 to 99
82 if ((i == 6) && ((a[o] == 'Z') ||
83 (a[o] == '+') || (a[o] == '-')))
90 if ((a[o] < '0') || (a[o] > '9')) goto err;
92 if (++o > l) goto err;
94 if ((a[o] < '0') || (a[o] > '9')) goto err;
96 if (++o > l) goto err;
98 if ((n < min[i]) || (n > max[i])) goto err;
104 tm->tm_year = n * 100 - 1900;
127 /* Optional fractional seconds: decimal point followed by one
132 if (++o > l) goto err;
134 while ((a[o] >= '0') && (a[o] <= '9') && (o <= l))
136 /* Must have at least one digit after decimal point */
137 if (i == o) goto err;
142 else if ((a[o] == '+') || (a[o] == '-'))
144 int offsign = a[o] == '-' ? -1 : 1, offset = 0;
146 if (o+4 > l) goto err;
149 if ((a[o] < '0') || (a[o] > '9')) goto err;
152 if ((a[o] < '0') || (a[o] > '9')) goto err;
154 if ((n < min[i]) || (n > max[i])) goto err;
164 if (offset && !OPENSSL_gmtime_adj(tm, 0, offset * offsign))
169 /* Missing time zone information. */
177 int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *d)
179 return asn1_generalizedtime_to_tm(NULL, d);
182 int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str)
184 ASN1_GENERALIZEDTIME t;
186 t.type=V_ASN1_GENERALIZEDTIME;
187 t.length=strlen(str);
188 t.data=(unsigned char *)str;
189 if (ASN1_GENERALIZEDTIME_check(&t))
193 if (!ASN1_STRING_set((ASN1_STRING *)s,
194 (unsigned char *)str,t.length))
196 s->type=V_ASN1_GENERALIZEDTIME;
204 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
207 return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0);
210 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
211 time_t t, int offset_day, long offset_sec)
219 s=M_ASN1_GENERALIZEDTIME_new();
223 ts=OPENSSL_gmtime(&t, &data);
227 if (offset_day || offset_sec)
229 if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
234 if ((p == NULL) || ((size_t)s->length < len))
236 p=OPENSSL_malloc(len);
239 OPENSSL_PUT_ERROR(ASN1, ASN1_GENERALIZEDTIME_adj, ERR_R_MALLOC_FAILURE);
243 OPENSSL_free(s->data);
244 s->data=(unsigned char *)p;
247 BIO_snprintf(p,len,"%04d%02d%02d%02d%02d%02dZ",ts->tm_year + 1900,
248 ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
250 s->type=V_ASN1_GENERALIZEDTIME;