| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 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 */ |
| 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 | |
| 29 | int ASN1_GENERALIZEDTIME_check(const ASN1_GENERALIZEDTIME *d) |
| 30 | { |
| 31 | return asn1_generalizedtime_to_tm(NULL, d); |
| 32 | } |
| 33 | |
| 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 | |
| 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 | |
| 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 | |
| 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 | } |