1 | /* |
2 | * Copyright 1995-2017 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 | |
16 | /* This is the primary function used to parse ASN1_UTCTIME */ |
17 | int asn1_utctime_to_tm(struct tm *tm, const ASN1_UTCTIME *d) |
18 | { |
19 | /* wrapper around asn1_time_to_tm */ |
20 | if (d->type != V_ASN1_UTCTIME) |
21 | return 0; |
22 | return asn1_time_to_tm(tm, d); |
23 | } |
24 | |
25 | int ASN1_UTCTIME_check(const ASN1_UTCTIME *d) |
26 | { |
27 | return asn1_utctime_to_tm(NULL, d); |
28 | } |
29 | |
30 | /* Sets the string via simple copy without cleaning it up */ |
31 | int ASN1_UTCTIME_set_string(ASN1_UTCTIME *s, const char *str) |
32 | { |
33 | ASN1_UTCTIME t; |
34 | |
35 | t.type = V_ASN1_UTCTIME; |
36 | t.length = strlen(str); |
37 | t.data = (unsigned char *)str; |
38 | t.flags = 0; |
39 | |
40 | if (!ASN1_UTCTIME_check(&t)) |
41 | return 0; |
42 | |
43 | if (s != NULL && !ASN1_STRING_copy(s, &t)) |
44 | return 0; |
45 | |
46 | return 1; |
47 | } |
48 | |
49 | ASN1_UTCTIME *ASN1_UTCTIME_set(ASN1_UTCTIME *s, time_t t) |
50 | { |
51 | return ASN1_UTCTIME_adj(s, t, 0, 0); |
52 | } |
53 | |
54 | ASN1_UTCTIME *ASN1_UTCTIME_adj(ASN1_UTCTIME *s, time_t t, |
55 | int offset_day, long offset_sec) |
56 | { |
57 | struct tm *ts; |
58 | struct tm data; |
59 | |
60 | ts = OPENSSL_gmtime(&t, &data); |
61 | if (ts == NULL) |
62 | return NULL; |
63 | |
64 | if (offset_day || offset_sec) { |
65 | if (!OPENSSL_gmtime_adj(ts, offset_day, offset_sec)) |
66 | return NULL; |
67 | } |
68 | |
69 | return asn1_time_from_tm(s, ts, V_ASN1_UTCTIME); |
70 | } |
71 | |
72 | int ASN1_UTCTIME_cmp_time_t(const ASN1_UTCTIME *s, time_t t) |
73 | { |
74 | struct tm stm, ttm; |
75 | int day, sec; |
76 | |
77 | if (!asn1_utctime_to_tm(&stm, s)) |
78 | return -2; |
79 | |
80 | if (OPENSSL_gmtime(&t, &ttm) == NULL) |
81 | return -2; |
82 | |
83 | if (!OPENSSL_gmtime_diff(&day, &sec, &ttm, &stm)) |
84 | return -2; |
85 | |
86 | if (day > 0 || sec > 0) |
87 | return 1; |
88 | if (day < 0 || sec < 0) |
89 | return -1; |
90 | return 0; |
91 | } |
92 | |
93 | int ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm) |
94 | { |
95 | if (tm->type != V_ASN1_UTCTIME) |
96 | return 0; |
97 | return ASN1_TIME_print(bp, tm); |
98 | } |
99 | |