1 /* crypto/asn1/a_gentm.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
59 /* GENERALIZEDTIME implementation, written by Steve Henson. Based on UTCTIME */
65 #include <openssl/asn1.h>
66 #include "asn1_locl.h"
70 int i2d_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME *a, unsigned char **pp)
73 /* KLUDGE! We convert to ascii before writing DER */
76 ASN1_STRING tmpstr = *(ASN1_STRING *)a;
79 ebcdic2ascii(tmp, tmpstr.data, (len >= sizeof tmp) ? sizeof tmp : len);
82 a = (ASN1_GENERALIZEDTIME *) &tmpstr;
84 return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
85 V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL));
89 ASN1_GENERALIZEDTIME *d2i_ASN1_GENERALIZEDTIME(ASN1_GENERALIZEDTIME **a,
90 unsigned char **pp, long length)
92 ASN1_GENERALIZEDTIME *ret=NULL;
94 ret=(ASN1_GENERALIZEDTIME *)d2i_ASN1_bytes((ASN1_STRING **)a,pp,length,
95 V_ASN1_GENERALIZEDTIME,V_ASN1_UNIVERSAL);
98 ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ERR_R_NESTED_ASN1_ERROR);
101 #ifdef CHARSET_EBCDIC
102 ascii2ebcdic(ret->data, ret->data, ret->length);
104 if (!ASN1_GENERALIZEDTIME_check(ret))
106 ASN1err(ASN1_F_D2I_ASN1_GENERALIZEDTIME,ASN1_R_INVALID_TIME_FORMAT);
112 if ((ret != NULL) && ((a == NULL) || (*a != ret)))
113 M_ASN1_GENERALIZEDTIME_free(ret);
119 int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d)
121 static const int min[9]={ 0, 0, 1, 1, 0, 0, 0, 0, 0};
122 static const int max[9]={99, 99,12,31,23,59,59,12,59};
126 if (d->type != V_ASN1_GENERALIZEDTIME) return(0);
130 /* GENERALIZEDTIME is similar to UTCTIME except the year is
131 * represented as YYYY. This stuff treats everything as a two digit
132 * field so make first two fields 00 to 99
134 if (l < 13) goto err;
137 if ((i == 6) && ((a[o] == 'Z') ||
138 (a[o] == '+') || (a[o] == '-')))
145 if ((a[o] < '0') || (a[o] > '9')) goto err;
147 if (++o > l) goto err;
149 if ((a[o] < '0') || (a[o] > '9')) goto err;
151 if (++o > l) goto err;
153 if ((n < min[i]) || (n > max[i])) goto err;
159 tm->tm_year = n * 100 - 1900;
182 /* Optional fractional seconds: decimal point followed by one
187 if (++o > l) goto err;
189 while ((a[o] >= '0') && (a[o] <= '9') && (o <= l))
191 /* Must have at least one digit after decimal point */
192 if (i == o) goto err;
197 else if ((a[o] == '+') || (a[o] == '-'))
199 int offsign = a[o] == '-' ? -1 : 1, offset = 0;
201 if (o+4 > l) goto err;
204 if ((a[o] < '0') || (a[o] > '9')) goto err;
207 if ((a[o] < '0') || (a[o] > '9')) goto err;
209 if ((n < min[i]) || (n > max[i])) goto err;
219 if (offset && !OPENSSL_gmtime_adj(tm, 0, offset * offsign))
224 /* Missing time zone information. */
232 int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *d)
234 return asn1_generalizedtime_to_tm(NULL, d);
237 int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str)
239 ASN1_GENERALIZEDTIME t;
241 t.type=V_ASN1_GENERALIZEDTIME;
242 t.length=strlen(str);
243 t.data=(unsigned char *)str;
244 if (ASN1_GENERALIZEDTIME_check(&t))
248 if (!ASN1_STRING_set((ASN1_STRING *)s,
249 (unsigned char *)str,t.length))
251 s->type=V_ASN1_GENERALIZEDTIME;
259 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
262 return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0);
265 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
266 time_t t, int offset_day, long offset_sec)
274 s=M_ASN1_GENERALIZEDTIME_new();
278 ts=OPENSSL_gmtime(&t, &data);
282 if (offset_day || offset_sec)
284 if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
289 if ((p == NULL) || ((size_t)s->length < len))
291 p=OPENSSL_malloc(len);
294 ASN1err(ASN1_F_ASN1_GENERALIZEDTIME_ADJ,
295 ERR_R_MALLOC_FAILURE);
299 OPENSSL_free(s->data);
300 s->data=(unsigned char *)p;
303 BIO_snprintf(p,len,"%04d%02d%02d%02d%02d%02dZ",ts->tm_year + 1900,
304 ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
306 s->type=V_ASN1_GENERALIZEDTIME;
307 #ifdef CHARSET_EBCDIC_not
308 ebcdic2ascii(s->data, s->data, s->length);