135 lines
4.2 KiB
C
Executable File
135 lines
4.2 KiB
C
Executable File
/* $OpenBSD: a_time.c,v 1.33 2021/12/25 07:48:09 jsing Exp $ */
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/* ====================================================================
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* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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/* This is an implementation of the ASN1 Time structure which is:
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* Time ::= CHOICE {
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* utcTime UTCTime,
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* generalTime GeneralizedTime }
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* written by Steve Henson.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <time.h>
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#include <openssl/asn1t.h>
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#include <openssl/err.h>
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#include "o_time.h"
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#include "asn1_locl.h"
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const ASN1_ITEM ASN1_TIME_it = {
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.itype = ASN1_ITYPE_MSTRING,
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.utype = B_ASN1_TIME,
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.templates = NULL,
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.tcount = 0,
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.funcs = NULL,
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.size = sizeof(ASN1_STRING),
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.sname = "ASN1_TIME",
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};
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ASN1_TIME *
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ASN1_TIME_new(void)
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{
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return (ASN1_TIME *)ASN1_item_new(&ASN1_TIME_it);
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}
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void
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ASN1_TIME_free(ASN1_TIME *a)
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{
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ASN1_item_free((ASN1_VALUE *)a, &ASN1_TIME_it);
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}
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/* Public API in OpenSSL. Kept internal for now. */
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static int
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ASN1_TIME_to_tm(const ASN1_TIME *s, struct tm *tm)
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{
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time_t now;
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if (s != NULL)
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return ASN1_time_parse(s->data, s->length, tm, 0) != -1;
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time(&now);
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memset(tm, 0, sizeof(*tm));
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return gmtime_r(&now, tm) != NULL;
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}
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int
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ASN1_TIME_diff(int *pday, int *psec, const ASN1_TIME *from, const ASN1_TIME *to)
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{
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struct tm tm_from, tm_to;
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if (!ASN1_TIME_to_tm(from, &tm_from))
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return 0;
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if (!ASN1_TIME_to_tm(to, &tm_to))
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return 0;
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return OPENSSL_gmtime_diff(pday, psec, &tm_from, &tm_to);
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}
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ASN1_TIME *
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d2i_ASN1_TIME(ASN1_TIME **a, const unsigned char **in, long len)
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{
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return (ASN1_TIME *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
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&ASN1_TIME_it);
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}
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int
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i2d_ASN1_TIME(ASN1_TIME *a, unsigned char **out)
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{
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return ASN1_item_i2d((ASN1_VALUE *)a, out, &ASN1_TIME_it);
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}
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