1 /*
2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (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 #include <openssl/asn1t.h>
20
IMPLEMENT_ASN1_DUP_FUNCTION(ASN1_GENERALIZEDTIME)21 IMPLEMENT_ASN1_DUP_FUNCTION(ASN1_GENERALIZEDTIME)
22
23 /* This is the primary function used to parse ASN1_GENERALIZEDTIME */
24 static int asn1_generalizedtime_to_tm(struct tm *tm,
25 const ASN1_GENERALIZEDTIME *d)
26 {
27 /* wrapper around ossl_asn1_time_to_tm */
28 if (d->type != V_ASN1_GENERALIZEDTIME)
29 return 0;
30 return ossl_asn1_time_to_tm(tm, d);
31 }
32
ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME * d)33 int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *d)
34 {
35 return asn1_generalizedtime_to_tm(NULL, d);
36 }
37
ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME * s,const char * str)38 int ASN1_GENERALIZEDTIME_set_string(ASN1_GENERALIZEDTIME *s, const char *str)
39 {
40 ASN1_GENERALIZEDTIME t;
41
42 t.type = V_ASN1_GENERALIZEDTIME;
43 t.length = strlen(str);
44 t.data = (unsigned char *)str;
45 t.flags = 0;
46
47 if (!ASN1_GENERALIZEDTIME_check(&t))
48 return 0;
49
50 if (s != NULL && !ASN1_STRING_copy(s, &t))
51 return 0;
52
53 return 1;
54 }
55
ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME * s,time_t t)56 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *s,
57 time_t t)
58 {
59 return ASN1_GENERALIZEDTIME_adj(s, t, 0, 0);
60 }
61
ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME * s,time_t t,int offset_day,long offset_sec)62 ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_adj(ASN1_GENERALIZEDTIME *s,
63 time_t t, int offset_day,
64 long offset_sec)
65 {
66 struct tm *ts;
67 struct tm data;
68
69 ts = OPENSSL_gmtime(&t, &data);
70 if (ts == NULL)
71 return NULL;
72
73 if (offset_day || offset_sec) {
74 if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
75 return NULL;
76 }
77
78 return ossl_asn1_time_from_tm(s, ts, V_ASN1_GENERALIZEDTIME);
79 }
80
ASN1_GENERALIZEDTIME_print(BIO * bp,const ASN1_GENERALIZEDTIME * tm)81 int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
82 {
83 if (tm->type != V_ASN1_GENERALIZEDTIME)
84 return 0;
85 return ASN1_TIME_print(bp, tm);
86 }
87
