1 /* crypto/asn1/a_time.c */
2 /* ====================================================================
3 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * licensing@OpenSSL.org.
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
31 * 6. Redistributions of any form whatsoever must retain the following
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
57 /* This is an implementation of the ASN1 Time structure which is:
60 * generalTime GeneralizedTime }
61 * written by Steve Henson.
67 #include <openssl/asn1t.h>
69 IMPLEMENT_ASN1_MSTRING(ASN1_TIME, B_ASN1_TIME)
71 IMPLEMENT_ASN1_FUNCTIONS(ASN1_TIME)
74 int i2d_ASN1_TIME(ASN1_TIME *a, unsigned char **pp)
77 /* KLUDGE! We convert to ascii before writing DER */
81 if(a->type == V_ASN1_UTCTIME || a->type == V_ASN1_GENERALIZEDTIME) {
84 tmpstr = *(ASN1_STRING *)a;
86 ebcdic2ascii(tmp, tmpstr.data, (len >= sizeof tmp) ? sizeof tmp : len);
88 a = (ASN1_GENERALIZEDTIME *) &tmpstr;
91 if(a->type == V_ASN1_UTCTIME || a->type == V_ASN1_GENERALIZEDTIME)
92 return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
93 a->type ,V_ASN1_UNIVERSAL));
94 ASN1err(ASN1_F_I2D_ASN1_TIME,ASN1_R_EXPECTING_A_TIME);
100 ASN1_TIME *ASN1_TIME_set(ASN1_TIME *s, time_t t)
103 #if defined(OPENSSL_THREADS) && !defined(OPENSSL_SYS_WIN32) && !defined(__CYGWIN32__)
107 ts=&data; /* should return &data, but doesn't on some systems, so we don't even look at the return value */
111 if((ts->tm_year >= 50) && (ts->tm_year < 150))
112 return ASN1_UTCTIME_set(s, t);
113 return ASN1_GENERALIZEDTIME_set(s,t);
116 int ASN1_TIME_check(ASN1_TIME *t)
118 if (t->type == V_ASN1_GENERALIZEDTIME)
119 return ASN1_GENERALIZEDTIME_check(t);
120 else if (t->type == V_ASN1_UTCTIME)
121 return ASN1_UTCTIME_check(t);
125 /* Convert an ASN1_TIME structure to GeneralizedTime */
126 ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(ASN1_TIME *t, ASN1_GENERALIZEDTIME **out)
128 ASN1_GENERALIZEDTIME *ret;
131 if (!ASN1_TIME_check(t)) return NULL;
135 if (!(ret = ASN1_GENERALIZEDTIME_new ()))
141 /* If already GeneralizedTime just copy across */
142 if (t->type == V_ASN1_GENERALIZEDTIME)
144 if(!ASN1_STRING_set(ret, t->data, t->length))
149 /* grow the string */
150 if (!ASN1_STRING_set(ret, NULL, t->length + 2))
152 str = (char *)ret->data;
153 /* Work out the century and prepend */
154 if (t->data[0] >= '5') strcpy(str, "19");
155 else strcpy(str, "20");
157 strcat(str, (char *)t->data);