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f6aed2cd DSH |
1 | /* crypto/asn1/a_gentm.c */ |
2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | |
3 | * All rights reserved. | |
4 | * | |
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. | |
8 | * | |
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). | |
15 | * | |
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. | |
22 | * | |
23 | * Redistribution and use in source and binary forms, with or without | |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
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)" | |
40 | * | |
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 | |
51 | * SUCH DAMAGE. | |
52 | * | |
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.] | |
57 | */ | |
58 | ||
59 | /* GENERALIZEDTIME implementation, written by Steve Henson. Based on UTCTIME */ | |
60 | ||
61 | #include <stdio.h> | |
62 | #include <time.h> | |
63 | #include "cryptlib.h" | |
b8e35bd6 | 64 | #include "o_time.h" |
ec577822 | 65 | #include <openssl/asn1.h> |
f6aed2cd | 66 | |
9d6b1ce6 | 67 | #if 0 |
08e9c1af | 68 | |
6b691a5c | 69 | int i2d_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME *a, unsigned char **pp) |
f6aed2cd | 70 | { |
a53955d8 UM |
71 | #ifdef CHARSET_EBCDIC |
72 | /* KLUDGE! We convert to ascii before writing DER */ | |
73 | int len; | |
74 | char tmp[24]; | |
75 | ASN1_STRING tmpstr = *(ASN1_STRING *)a; | |
76 | ||
77 | len = tmpstr.length; | |
78 | ebcdic2ascii(tmp, tmpstr.data, (len >= sizeof tmp) ? sizeof tmp : len); | |
79 | tmpstr.data = tmp; | |
80 | ||
81 | a = (ASN1_GENERALIZEDTIME *) &tmpstr; | |
82 | #endif | |
f6aed2cd DSH |
83 | return(i2d_ASN1_bytes((ASN1_STRING *)a,pp, |
84 | V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL)); | |
85 | } | |
86 | ||
87 | ||
6b691a5c UM |
88 | ASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME **a, |
89 | unsigned char **pp, long length) | |
f6aed2cd DSH |
90 | { |
91 | ASN1_GENERALIZEDTIME *ret=NULL; | |
92 | ||
93 | ret=(ASN1_GENERALIZEDTIME *)d2i_ASN1_bytes((ASN1_STRING **)a,pp,length, | |
94 | V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL); | |
95 | if (ret == NULL) | |
96 | { | |
97 | ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ERR_R_NESTED_ASN1_ERROR); | |
98 | return(NULL); | |
99 | } | |
a53955d8 UM |
100 | #ifdef CHARSET_EBCDIC |
101 | ascii2ebcdic(ret->data, ret->data, ret->length); | |
102 | #endif | |
f6aed2cd DSH |
103 | if (!ASN1_GENERALIZEDTIME_check(ret)) |
104 | { | |
105 | ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ASN1_R_INVALID_TIME_FORMAT); | |
106 | goto err; | |
107 | } | |
108 | ||
109 | return(ret); | |
110 | err: | |
111 | if ((ret != NULL) && ((a == NULL) || (*a != ret))) | |
08e9c1af | 112 | M_ASN1_GENERALIZEDTIME_free(ret); |
f6aed2cd DSH |
113 | return(NULL); |
114 | } | |
115 | ||
9d6b1ce6 DSH |
116 | #endif |
117 | ||
6b691a5c | 118 | int ASN1_GENERALIZEDTIME_check(ASN1_GENERALIZEDTIME *d) |
f6aed2cd | 119 | { |
ebc06fba AP |
120 | static const int min[9]={ 0, 0, 1, 1, 0, 0, 0, 0, 0}; |
121 | static const int max[9]={99, 99,12,31,23,59,59,12,59}; | |
f6aed2cd DSH |
122 | char *a; |
123 | int n,i,l,o; | |
124 | ||
125 | if (d->type != V_ASN1_GENERALIZEDTIME) return(0); | |
126 | l=d->length; | |
127 | a=(char *)d->data; | |
128 | o=0; | |
129 | /* GENERALIZEDTIME is similar to UTCTIME except the year is | |
130 | * represented as YYYY. This stuff treats everything as a two digit | |
131 | * field so make first two fields 00 to 99 | |
132 | */ | |
133 | if (l < 13) goto err; | |
134 | for (i=0; i<7; i++) | |
135 | { | |
136 | if ((i == 6) && ((a[o] == 'Z') || | |
137 | (a[o] == '+') || (a[o] == '-'))) | |
138 | { i++; break; } | |
139 | if ((a[o] < '0') || (a[o] > '9')) goto err; | |
140 | n= a[o]-'0'; | |
141 | if (++o > l) goto err; | |
142 | ||
143 | if ((a[o] < '0') || (a[o] > '9')) goto err; | |
144 | n=(n*10)+ a[o]-'0'; | |
145 | if (++o > l) goto err; | |
146 | ||
147 | if ((n < min[i]) || (n > max[i])) goto err; | |
148 | } | |
d46c1a81 DSH |
149 | /* Optional fractional seconds: decimal point followed by one |
150 | * or more digits. | |
151 | */ | |
152 | if (a[o] == '.') | |
153 | { | |
154 | if (++o > l) goto err; | |
155 | i = o; | |
156 | while ((a[o] >= '0') && (a[o] <= '9') && (o <= l)) | |
157 | o++; | |
158 | /* Must have at least one digit after decimal point */ | |
159 | if (i == o) goto err; | |
160 | } | |
161 | ||
f6aed2cd DSH |
162 | if (a[o] == 'Z') |
163 | o++; | |
164 | else if ((a[o] == '+') || (a[o] == '-')) | |
165 | { | |
166 | o++; | |
167 | if (o+4 > l) goto err; | |
168 | for (i=7; i<9; i++) | |
169 | { | |
170 | if ((a[o] < '0') || (a[o] > '9')) goto err; | |
171 | n= a[o]-'0'; | |
172 | o++; | |
173 | if ((a[o] < '0') || (a[o] > '9')) goto err; | |
174 | n=(n*10)+ a[o]-'0'; | |
175 | if ((n < min[i]) || (n > max[i])) goto err; | |
176 | o++; | |
177 | } | |
178 | } | |
c7235be6 UM |
179 | else |
180 | { | |
181 | /* Missing time zone information. */ | |
182 | goto err; | |
183 | } | |
f6aed2cd DSH |
184 | return(o == l); |
185 | err: | |
186 | return(0); | |
187 | } | |
188 | ||
875a644a | 189 | int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str) |
f6aed2cd DSH |
190 | { |
191 | ASN1_GENERALIZEDTIME t; | |
192 | ||
193 | t.type=V_ASN1_GENERALIZEDTIME; | |
194 | t.length=strlen(str); | |
195 | t.data=(unsigned char *)str; | |
196 | if (ASN1_GENERALIZEDTIME_check(&t)) | |
197 | { | |
198 | if (s != NULL) | |
199 | { | |
a0e7c8ee DSH |
200 | if (!ASN1_STRING_set((ASN1_STRING *)s, |
201 | (unsigned char *)str,t.length)) | |
202 | return 0; | |
ccb08f98 | 203 | s->type=V_ASN1_GENERALIZEDTIME; |
f6aed2cd DSH |
204 | } |
205 | return(1); | |
206 | } | |
207 | else | |
208 | return(0); | |
209 | } | |
210 | ||
6b691a5c UM |
211 | ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s, |
212 | time_t t) | |
f6aed2cd DSH |
213 | { |
214 | char *p; | |
215 | struct tm *ts; | |
f6aed2cd | 216 | struct tm data; |
d420ac2c | 217 | size_t len = 20; |
f6aed2cd DSH |
218 | |
219 | if (s == NULL) | |
08e9c1af | 220 | s=M_ASN1_GENERALIZEDTIME_new(); |
f6aed2cd DSH |
221 | if (s == NULL) |
222 | return(NULL); | |
223 | ||
b8e35bd6 RL |
224 | ts=OPENSSL_gmtime(&t, &data); |
225 | if (ts == NULL) | |
226 | return(NULL); | |
227 | ||
f6aed2cd | 228 | p=(char *)s->data; |
87203dc9 | 229 | if ((p == NULL) || ((size_t)s->length < len)) |
f6aed2cd | 230 | { |
d420ac2c | 231 | p=OPENSSL_malloc(len); |
a0e7c8ee DSH |
232 | if (p == NULL) |
233 | { | |
234 | ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_SET, | |
235 | ERR_R_MALLOC_FAILURE); | |
236 | return(NULL); | |
237 | } | |
f6aed2cd | 238 | if (s->data != NULL) |
26a3a48d | 239 | OPENSSL_free(s->data); |
f6aed2cd DSH |
240 | s->data=(unsigned char *)p; |
241 | } | |
242 | ||
d420ac2c RL |
243 | BIO_snprintf(p,len,"%04d%02d%02d%02d%02d%02dZ",ts->tm_year + 1900, |
244 | ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec); | |
f6aed2cd DSH |
245 | s->length=strlen(p); |
246 | s->type=V_ASN1_GENERALIZEDTIME; | |
a53955d8 UM |
247 | #ifdef CHARSET_EBCDIC_not |
248 | ebcdic2ascii(s->data, s->data, s->length); | |
249 | #endif | |
f6aed2cd DSH |
250 | return(s); |
251 | } |