1
/* crypto/asn1/a_utctm.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.]
63
#include <openssl/asn1.h>
66
int i2d_ASN1_UTCTIME(ASN1_UTCTIME *a, unsigned char **pp)
68
#ifndef CHARSET_EBCDIC
69
return(i2d_ASN1_bytes((ASN1_STRING *)a,pp,
70
V_ASN1_UTCTIME,V_ASN1_UNIVERSAL));
72
/* KLUDGE! We convert to ascii before writing DER */
75
ASN1_STRING x = *(ASN1_STRING *)a;
78
ebcdic2ascii(tmp, x.data, (len >= sizeof tmp) ? sizeof tmp : len);
80
return i2d_ASN1_bytes(&x, pp, V_ASN1_UTCTIME,V_ASN1_UNIVERSAL);
85
ASN1_UTCTIME *d2i_ASN1_UTCTIME(ASN1_UTCTIME **a, unsigned char **pp,
88
ASN1_UTCTIME *ret=NULL;
90
ret=(ASN1_UTCTIME *)d2i_ASN1_bytes((ASN1_STRING **)a,pp,length,
91
V_ASN1_UTCTIME,V_ASN1_UNIVERSAL);
94
ASN1err(ASN1_F_D2I_ASN1_UTCTIME,ERR_R_NESTED_ASN1_ERROR);
98
ascii2ebcdic(ret->data, ret->data, ret->length);
100
if (!ASN1_UTCTIME_check(ret))
102
ASN1err(ASN1_F_D2I_ASN1_UTCTIME,ASN1_R_INVALID_TIME_FORMAT);
108
if ((ret != NULL) && ((a == NULL) || (*a != ret)))
109
M_ASN1_UTCTIME_free(ret);
115
int ASN1_UTCTIME_check(ASN1_UTCTIME *d)
117
static int min[8]={ 0, 1, 1, 0, 0, 0, 0, 0};
118
static int max[8]={99,12,31,23,59,59,12,59};
122
if (d->type != V_ASN1_UTCTIME) return(0);
127
if (l < 11) goto err;
130
if ((i == 5) && ((a[o] == 'Z') ||
131
(a[o] == '+') || (a[o] == '-')))
133
if ((a[o] < '0') || (a[o] > '9')) goto err;
135
if (++o > l) goto err;
137
if ((a[o] < '0') || (a[o] > '9')) goto err;
139
if (++o > l) goto err;
141
if ((n < min[i]) || (n > max[i])) goto err;
145
else if ((a[o] == '+') || (a[o] == '-'))
148
if (o+4 > l) goto err;
151
if ((a[o] < '0') || (a[o] > '9')) goto err;
154
if ((a[o] < '0') || (a[o] > '9')) goto err;
156
if ((n < min[i]) || (n > max[i])) goto err;
165
int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str)
169
t.type=V_ASN1_UTCTIME;
170
t.length=strlen(str);
171
t.data=(unsigned char *)str;
172
if (ASN1_UTCTIME_check(&t))
176
if (!ASN1_STRING_set((ASN1_STRING *)s,
177
(unsigned char *)str,t.length))
179
s->type = V_ASN1_UTCTIME;
187
ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t)
195
s=M_ASN1_UTCTIME_new();
199
ts=OPENSSL_gmtime(&t, &data);
204
if ((p == NULL) || ((size_t)s->length < len))
206
p=OPENSSL_malloc(len);
209
ASN1err(ASN1_F_ASN1_UTCTIME_SET,ERR_R_MALLOC_FAILURE);
213
OPENSSL_free(s->data);
214
s->data=(unsigned char *)p;
217
BIO_snprintf(p,len,"%02d%02d%02d%02d%02d%02dZ",ts->tm_year%100,
218
ts->tm_mon+1,ts->tm_mday,ts->tm_hour,ts->tm_min,ts->tm_sec);
220
s->type=V_ASN1_UTCTIME;
221
#ifdef CHARSET_EBCDIC_not
222
ebcdic2ascii(s->data, s->data, s->length);
228
int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t)
235
#define g2(p) (((p)[0]-'0')*10+(p)[1]-'0')
237
if (s->data[12] == 'Z')
241
offset = g2(s->data+13)*60+g2(s->data+15);
242
if (s->data[12] == '-')
246
t -= offset*60; /* FIXME: may overflow in extreme cases */
248
tm = OPENSSL_gmtime(&t, &data);
250
#define return_cmp(a,b) if ((a)<(b)) return -1; else if ((a)>(b)) return 1
254
return_cmp(year, tm->tm_year);
255
return_cmp(g2(s->data+2) - 1, tm->tm_mon);
256
return_cmp(g2(s->data+4), tm->tm_mday);
257
return_cmp(g2(s->data+6), tm->tm_hour);
258
return_cmp(g2(s->data+8), tm->tm_min);
259
return_cmp(g2(s->data+10), tm->tm_sec);
268
time_t ASN1_UTCTIME_get(const ASN1_UTCTIME *s)
273
memset(&tm,'\0',sizeof tm);
275
#define g2(p) (((p)[0]-'0')*10+(p)[1]-'0')
276
tm.tm_year=g2(s->data);
279
tm.tm_mon=g2(s->data+2)-1;
280
tm.tm_mday=g2(s->data+4);
281
tm.tm_hour=g2(s->data+6);
282
tm.tm_min=g2(s->data+8);
283
tm.tm_sec=g2(s->data+10);
284
if(s->data[12] == 'Z')
288
offset=g2(s->data+13)*60+g2(s->data+15);
289
if(s->data[12] == '-')
294
return mktime(&tm)-offset*60; /* FIXME: mktime assumes the current timezone
295
* instead of UTC, and unless we rewrite OpenSSL
296
* in Lisp we cannot locally change the timezone
297
* without possibly interfering with other parts
298
* of the program. timegm, which uses UTC, is
300
* Also time_t is inappropriate for general
301
* UTC times because it may a 32 bit type. */