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f6aed2cd DSH |
1 | /* crypto/asn1/a_time.c */ |
2 | /* ==================================================================== | |
3 | * Copyright (c) 1999 The OpenSSL Project. All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * | |
9 | * 1. Redistributions of source code must retain the above copyright | |
10 | * notice, this list of conditions and the following disclaimer. | |
11 | * | |
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 | |
15 | * distribution. | |
16 | * | |
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/)" | |
21 | * | |
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. | |
26 | * | |
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. | |
30 | * | |
31 | * 6. Redistributions of any form whatsoever must retain the following | |
32 | * acknowledgment: | |
33 | * "This product includes software developed by the OpenSSL Project | |
34 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | |
35 | * | |
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 | * ==================================================================== | |
49 | * | |
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). | |
53 | * | |
54 | */ | |
55 | ||
56 | ||
57 | /* This is an implementation of the ASN1 Time structure which is: | |
58 | * Time ::= CHOICE { | |
59 | * utcTime UTCTime, | |
60 | * generalTime GeneralizedTime } | |
61 | * written by Steve Henson. | |
62 | */ | |
63 | ||
64 | #include <stdio.h> | |
65 | #include <time.h> | |
66 | #include "cryptlib.h" | |
b8e35bd6 | 67 | #include "o_time.h" |
9d6b1ce6 | 68 | #include <openssl/asn1t.h> |
f6aed2cd | 69 | |
9d6b1ce6 | 70 | IMPLEMENT_ASN1_MSTRING(ASN1_TIME, B_ASN1_TIME) |
08e9c1af | 71 | |
9d6b1ce6 | 72 | IMPLEMENT_ASN1_FUNCTIONS(ASN1_TIME) |
08e9c1af | 73 | |
9d6b1ce6 | 74 | #if 0 |
6b691a5c | 75 | int i2d_ASN1_TIME(ASN1_TIME *a, unsigned char **pp) |
f6aed2cd | 76 | { |
a53955d8 UM |
77 | #ifdef CHARSET_EBCDIC |
78 | /* KLUDGE! We convert to ascii before writing DER */ | |
79 | char tmp[24]; | |
80 | ASN1_STRING tmpstr; | |
81 | ||
82 | if(a->type == V_ASN1_UTCTIME || a->type == V_ASN1_GENERALIZEDTIME) { | |
83 | int len; | |
84 | ||
85 | tmpstr = *(ASN1_STRING *)a; | |
86 | len = tmpstr.length; | |
87 | ebcdic2ascii(tmp, tmpstr.data, (len >= sizeof tmp) ? sizeof tmp : len); | |
88 | tmpstr.data = tmp; | |
89 | a = (ASN1_GENERALIZEDTIME *) &tmpstr; | |
90 | } | |
91 | #endif | |
f6aed2cd DSH |
92 | if(a->type == V_ASN1_UTCTIME || a->type == V_ASN1_GENERALIZEDTIME) |
93 | return(i2d_ASN1_bytes((ASN1_STRING *)a,pp, | |
94 | a->type ,V_ASN1_UNIVERSAL)); | |
95 | ASN1err(ASN1_F_I2D_ASN1_TIME,ASN1_R_EXPECTING_A_TIME); | |
96 | return -1; | |
97 | } | |
9d6b1ce6 | 98 | #endif |
f6aed2cd DSH |
99 | |
100 | ||
6b691a5c | 101 | ASN1_TIME *ASN1_TIME_set(ASN1_TIME *s, time_t t) |
f6aed2cd DSH |
102 | { |
103 | struct tm *ts; | |
f6aed2cd | 104 | struct tm data; |
f6aed2cd | 105 | |
b8e35bd6 RL |
106 | ts=OPENSSL_gmtime(&t,&data); |
107 | if (ts == NULL) | |
d3b5cb53 DSH |
108 | { |
109 | ASN1err(ASN1_F_ASN1_TIME_SET, ASN1_R_ERROR_GETTING_TIME); | |
b8e35bd6 | 110 | return NULL; |
d3b5cb53 | 111 | } |
7e797a06 | 112 | if((ts->tm_year >= 50) && (ts->tm_year < 150)) |
f6aed2cd DSH |
113 | return ASN1_UTCTIME_set(s, t); |
114 | return ASN1_GENERALIZEDTIME_set(s,t); | |
115 | } | |
02e4fbed DSH |
116 | |
117 | int ASN1_TIME_check(ASN1_TIME *t) | |
118 | { | |
119 | if (t->type == V_ASN1_GENERALIZEDTIME) | |
120 | return ASN1_GENERALIZEDTIME_check(t); | |
121 | else if (t->type == V_ASN1_UTCTIME) | |
122 | return ASN1_UTCTIME_check(t); | |
123 | return 0; | |
124 | } | |
125 | ||
126 | /* Convert an ASN1_TIME structure to GeneralizedTime */ | |
127 | ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(ASN1_TIME *t, ASN1_GENERALIZEDTIME **out) | |
128 | { | |
129 | ASN1_GENERALIZEDTIME *ret; | |
130 | char *str; | |
d420ac2c | 131 | int newlen; |
02e4fbed DSH |
132 | |
133 | if (!ASN1_TIME_check(t)) return NULL; | |
134 | ||
135 | if (!out || !*out) | |
136 | { | |
137 | if (!(ret = ASN1_GENERALIZEDTIME_new ())) | |
138 | return NULL; | |
139 | if (out) *out = ret; | |
140 | } | |
141 | else ret = *out; | |
142 | ||
143 | /* If already GeneralizedTime just copy across */ | |
144 | if (t->type == V_ASN1_GENERALIZEDTIME) | |
145 | { | |
146 | if(!ASN1_STRING_set(ret, t->data, t->length)) | |
147 | return NULL; | |
148 | return ret; | |
149 | } | |
150 | ||
151 | /* grow the string */ | |
152 | if (!ASN1_STRING_set(ret, NULL, t->length + 2)) | |
153 | return NULL; | |
d420ac2c RL |
154 | /* ASN1_STRING_set() allocated 'len + 1' bytes. */ |
155 | newlen = t->length + 2 + 1; | |
2b916952 | 156 | str = (char *)ret->data; |
02e4fbed | 157 | /* Work out the century and prepend */ |
d420ac2c RL |
158 | if (t->data[0] >= '5') BUF_strlcpy(str, "19", newlen); |
159 | else BUF_strlcpy(str, "20", newlen); | |
02e4fbed | 160 | |
d420ac2c | 161 | BUF_strlcat(str, (char *)t->data, newlen); |
02e4fbed DSH |
162 | |
163 | return ret; | |
164 | } |