1/* Written by Richard Levitte (richard@levitte.org) for the OpenSSL
2 * project 2001.
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
4 * project 2008.
5 */
6/* ====================================================================
7 * Copyright (c) 2001 The OpenSSL Project.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in
18 *    the documentation and/or other materials provided with the
19 *    distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 *    software must display the following acknowledgment:
23 *    "This product includes software developed by the OpenSSL Project
24 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 *    endorse or promote products derived from this software without
28 *    prior written permission. For written permission, please contact
29 *    licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 *    nor may "OpenSSL" appear in their names without prior written
33 *    permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 *    acknowledgment:
37 *    "This product includes software developed by the OpenSSL Project
38 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com).  This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com). */
57
58#ifndef OPENSSL_HEADER_TIME_H
59#define OPENSSL_HEADER_TIME_H
60
61#include <openssl/base.h>
62
63#include <time.h>
64
65#if defined(__cplusplus)
66extern "C" {
67#endif
68
69
70/* OPENSSL_gmtime wraps |gmtime_r|. See the manual page for that function. */
71struct tm *OPENSSL_gmtime(const time_t *timer, struct tm *result);
72
73/* OPENSSL_gmtime_adj updates |tm| by adding |offset_day| days and |offset_sec|
74 * seconds. */
75int OPENSSL_gmtime_adj(struct tm *tm, int offset_day, long offset_sec);
76
77/* OPENSSL_gmtime_diff calculates the difference between |from| and |to| and
78 * outputs the difference as a number of days and seconds in |*out_days| and
79 * |*out_secs|. */
80int OPENSSL_gmtime_diff(int *out_days, int *out_secs, const struct tm *from,
81                        const struct tm *to);
82
83
84#if defined(__cplusplus)
85}  /* extern C */
86#endif
87
88#endif  /* OPENSSL_HEADER_TIME_H */
89