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 #include <stdio.h>
11 #include <time.h>
12 #include "internal/cryptlib.h"
13 #include <openssl/asn1.h>
14 #include "asn1_local.h"
15 #include <openssl/asn1t.h>
16
IMPLEMENT_ASN1_DUP_FUNCTION(ASN1_UTCTIME)17 IMPLEMENT_ASN1_DUP_FUNCTION(ASN1_UTCTIME)
18
19 /* This is the primary function used to parse ASN1_UTCTIME */
20 int ossl_asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d)
21 {
22 /* wrapper around ossl_asn1_time_to_tm */
23 if (d->type != V_ASN1_UTCTIME)
24 return 0;
25 return ossl_asn1_time_to_tm(tm, d);
26 }
27
ASN1_UTCTIME_check(const ASN1_UTCTIME * d)28 int ASN1_UTCTIME_check(const ASN1_UTCTIME *d)
29 {
30 return ossl_asn1_utctime_to_tm(NULL, d);
31 }
32
33 /* Sets the string via simple copy without cleaning it up */
ASN1_UTCTIME_set_string(ASN1_UTCTIME * s,const char * str)34 int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str)
35 {
36 ASN1_UTCTIME t;
37
38 t.type = V_ASN1_UTCTIME;
39 t.length = strlen(str);
40 t.data = (unsigned char *)str;
41 t.flags = 0;
42
43 if (!ASN1_UTCTIME_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_UTCTIME_set(ASN1_UTCTIME * s,time_t t)52 ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t)
53 {
54 return ASN1_UTCTIME_adj(s, t, 0, 0);
55 }
56
ASN1_UTCTIME_adj(ASN1_UTCTIME * s,time_t t,int offset_day,long offset_sec)57 ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, time_t t,
58 int offset_day, long offset_sec)
59 {
60 struct tm *ts;
61 struct tm data;
62
63 ts = OPENSSL_gmtime(&t, &data);
64 if (ts == NULL)
65 return NULL;
66
67 if (offset_day || offset_sec) {
68 if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec))
69 return NULL;
70 }
71
72 return ossl_asn1_time_from_tm(s, ts, V_ASN1_UTCTIME);
73 }
74
ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME * s,time_t t)75 int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t)
76 {
77 struct tm stm, ttm;
78 int day, sec;
79
80 if (!ossl_asn1_utctime_to_tm(&stm, s))
81 return -2;
82
83 if (OPENSSL_gmtime(&t, &ttm) == NULL)
84 return -2;
85
86 if (!OPENSSL_gmtime_diff(&day, &sec, &ttm, &stm))
87 return -2;
88
89 if (day > 0 || sec > 0)
90 return 1;
91 if (day < 0 || sec < 0)
92 return -1;
93 return 0;
94 }
95
ASN1_UTCTIME_print(BIO * bp,const ASN1_UTCTIME * tm)96 int ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm)
97 {
98 if (tm->type != V_ASN1_UTCTIME)
99 return 0;
100 return ASN1_TIME_print(bp, tm);
101 }
102