1 /*
2 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 /*
11 * GENERALIZEDTIME implementation. Based on UTCTIME
12 */
13
14 #include <stdio.h>
15 #include <time.h>
16 #include "internal/cryptlib.h"
17 #include <openssl/asn1.h>
18 #include "asn1_local.h"
19
20 /* This is the primary function used to parse ASN1_GENERALIZEDTIME */
asn1_generalizedtime_to_tm(struct tm * tm,const ASN1_GENERALIZEDTIME * d)21 int asn1_generalizedtime_to_tm(struct tm *tm, const ASN1_GENERALIZEDTIME *d)
22 {
23 /* wrapper around asn1_time_to_tm */
24 if (d->type != V_ASN1_GENERALIZEDTIME)
25 return 0;
26 return asn1_time_to_tm(tm, d);
27 }
28
ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME * d)29 int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *d)
30 {
31 return asn1_generalizedtime_to_tm(NULL, d);
32 }
33
ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME * s,const char * str)34 int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str)
35 {
36 ASN1_GENERALIZEDTIME t;
37
38 t.type = V_ASN1_GENERALIZEDTIME;
39 t.length = strlen(str);
40 t.data = (unsigned char *)str;
41 t.flags = 0;
42
43 if (!ASN1_GENERALIZEDTIME_check(&t))
44 return 0;
45
46 if (s != NULL && !ASN1_STRING_copy(s, &t))
47 return 0;
48
49 return 1;
50 }
51
ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME * s,time_t t)52 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
53 time_t t)
54 {
55 return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0);
56 }
57
ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME * s,time_t t,int offset_day,long offset_sec)58 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
59 time_t t, int offset_day,
60 long offset_sec)
61 {
62 struct tm *ts;
63 struct tm data;
64
65 ts = OPENSSL_gmtime(&t, &data);
66 if (ts == NULL)
67 return NULL;
68
69 if (offset_day || offset_sec) {
70 if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
71 return NULL;
72 }
73
74 return asn1_time_from_tm(s, ts, V_ASN1_GENERALIZEDTIME);
75 }
76
ASN1_GENERALIZEDTIME_print(BIO * bp,const ASN1_GENERALIZEDTIME * tm)77 int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
78 {
79 if (tm->type != V_ASN1_GENERALIZEDTIME)
80 return 0;
81 return ASN1_TIME_print(bp, tm);
82 }
83