1 /* $MirOS: src/lib/libssl/src/crypto/asn1/a_gentm.c,v 1.3 2005/04/29 13:52:29 tg Exp $ */
2
3 /* crypto/asn1/a_gentm.c */
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * All rights reserved.
6 *
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
10 *
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
17 *
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
24 *
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
27 * are met:
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
42 *
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * SUCH DAMAGE.
54 *
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
59 */
60
61 /* GENERALIZEDTIME implementation, written by Steve Henson. Based on UTCTIME */
62
63 #include <stdio.h>
64 #include <time.h>
65 #include "cryptlib.h"
66 #include "o_time.h"
67 #include <openssl/asn1.h>
68
69 #if 0
70
71 int i2d_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME *a, unsigned char **pp)
72 {
73 #ifdef CHARSET_EBCDIC
74 /* KLUDGE! We convert to ascii before writing DER */
75 int len;
76 char tmp[24];
77 ASN1_STRING tmpstr = *(ASN1_STRING *)a;
78
79 len = tmpstr.length;
80 ebcdic2ascii(tmp, tmpstr.data, (len >= sizeof tmp) ? sizeof tmp : len);
81 tmpstr.data = tmp;
82
83 a = (ASN1_GENERALIZEDTIME *) &tmpstr;
84 #endif
85 return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
86 V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL));
87 }
88
89
90 ASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME **a,
91 unsigned char **pp, long length)
92 {
93 ASN1_GENERALIZEDTIME *ret=NULL;
94
95 ret=(ASN1_GENERALIZEDTIME *)d2i_ASN1_bytes((ASN1_STRING **)a,pp,length,
96 V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL);
97 if (ret == NULL)
98 {
99 ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ERR_R_NESTED_ASN1_ERROR);
100 return(NULL);
101 }
102 #ifdef CHARSET_EBCDIC
103 ascii2ebcdic(ret->data, ret->data, ret->length);
104 #endif
105 if (!ASN1_GENERALIZEDTIME_check(ret))
106 {
107 ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ASN1_R_INVALID_TIME_FORMAT);
108 goto err;
109 }
110
111 return(ret);
112 err:
113 if ((ret != NULL) && ((a == NULL) || (*a != ret)))
114 M_ASN1_GENERALIZEDTIME_free(ret);
115 return(NULL);
116 }
117
118 #endif
119
ASN1_GENERALIZEDTIME_check(ASN1_GENERALIZEDTIME * d)120 int ASN1_GENERALIZEDTIME_check(ASN1_GENERALIZEDTIME *d)
121 {
122 static int min[9]={ 0, 0, 1, 1, 0, 0, 0, 0, 0};
123 static int max[9]={99, 99,12,31,23,59,59,12,59};
124 char *a;
125 int n,i,l,o;
126
127 if (d->type != V_ASN1_GENERALIZEDTIME) return(0);
128 l=d->length;
129 a=(char *)d->data;
130 o=0;
131 /* GENERALIZEDTIME is similar to UTCTIME except the year is
132 * represented as YYYY. This stuff treats everything as a two digit
133 * field so make first two fields 00 to 99
134 */
135 if (l < 13) goto err;
136 for (i=0; i<7; i++)
137 {
138 if ((i == 6) && ((a[o] == 'Z') ||
139 (a[o] == '+') || (a[o] == '-')))
140 { i++; break; }
141 if ((a[o] < '0') || (a[o] > '9')) goto err;
142 n= a[o]-'0';
143 if (++o > l) goto err;
144
145 if ((a[o] < '0') || (a[o] > '9')) goto err;
146 n=(n*10)+ a[o]-'0';
147 if (++o > l) goto err;
148
149 if ((n < min[i]) || (n > max[i])) goto err;
150 }
151 /* Optional fractional seconds: decimal point followed by one
152 * or more digits.
153 */
154 if (a[o] == '.')
155 {
156 if (++o > l) goto err;
157 i = o;
158 while ((a[o] >= '0') && (a[o] <= '9') && (o <= l))
159 o++;
160 /* Must have at least one digit after decimal point */
161 if (i == o) goto err;
162 }
163
164 if (a[o] == 'Z')
165 o++;
166 else if ((a[o] == '+') || (a[o] == '-'))
167 {
168 o++;
169 if (o+4 > l) goto err;
170 for (i=7; i<9; i++)
171 {
172 if ((a[o] < '0') || (a[o] > '9')) goto err;
173 n= a[o]-'0';
174 o++;
175 if ((a[o] < '0') || (a[o] > '9')) goto err;
176 n=(n*10)+ a[o]-'0';
177 if ((n < min[i]) || (n > max[i])) goto err;
178 o++;
179 }
180 }
181 return(o == l);
182 err:
183 return(0);
184 }
185
ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME * s,char * str)186 int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, char *str)
187 {
188 ASN1_GENERALIZEDTIME t;
189
190 t.type=V_ASN1_GENERALIZEDTIME;
191 t.length=strlen(str);
192 t.data=(unsigned char *)str;
193 if (ASN1_GENERALIZEDTIME_check(&t))
194 {
195 if (s != NULL)
196 {
197 if (!ASN1_STRING_set((ASN1_STRING *)s,
198 (unsigned char *)str,t.length))
199 return 0;
200 s->type=V_ASN1_GENERALIZEDTIME;
201 }
202 return(1);
203 }
204 else
205 return(0);
206 }
207
ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME * s,time_t t)208 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
209 time_t t)
210 {
211 char *p;
212 struct tm *ts;
213 struct tm data;
214 size_t len = 20;
215
216 if (s == NULL)
217 s=M_ASN1_GENERALIZEDTIME_new();
218 if (s == NULL)
219 return(NULL);
220
221 ts=OPENSSL_gmtime(&t, &data);
222 if (ts == NULL)
223 return(NULL);
224
225 p=(char *)s->data;
226 if ((p == NULL) || ((size_t)s->length < len))
227 {
228 p=OPENSSL_malloc(len);
229 if (p == NULL)
230 {
231 ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_SET,
232 ERR_R_MALLOC_FAILURE);
233 return(NULL);
234 }
235 if (s->data != NULL)
236 OPENSSL_free(s->data);
237 s->data=(unsigned char *)p;
238 }
239
240 BIO_snprintf(p,len,"%04lld%02d%02d%02d%02d%02dZ",
241 (int64_t)(ts->tm_year + 1900),
242 ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
243 s->length=strlen(p);
244 s->type=V_ASN1_GENERALIZEDTIME;
245 #ifdef CHARSET_EBCDIC_not
246 ebcdic2ascii(s->data, s->data, s->length);
247 #endif
248 return(s);
249 }
250