1/*
2 * Copyright 2010-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License").
5 * You may not use this file except in compliance with the License.
6 * A copy of the License is located at
7 *
8 * http://aws.amazon.com/apache2.0
9 *
10 * or in the "license" file accompanying this file. This file is distributed
11 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
12 * express or implied. See the License for the specific language governing
13 * permissions and limitations under the License.
14 */
15#include <aws/common/time.h>
16
17#if defined(__ANDROID__) && !defined(__LP64__)
18/*
19 * This branch brought to you by the kind folks at google chromium. It's been modified a bit, but
20 * gotta give credit where it's due.... I'm not a lawyer so I'm just gonna drop their copyright
21 * notification here to avoid all of that.
22 */
23
24/*
25 * Copyright 2014 The Chromium Authors. All rights reserved.
26 *
27 * Redistribution and use in source and binary forms, with or without
28 * modification, are permitted provided that the following conditions are
29 * met:
30 *
31 * Redistributions of source code must retain the above copyright
32 * notice, this list of conditions and the following disclaimer.
33 * Redistributions in binary form must reproduce the above
34 * copyright notice, this list of conditions and the following disclaimer
35 * in the documentation and/or other materials provided with the
36 * distribution.
37 * Neither the name of Google Inc. nor the names of its
38 * contributors may be used to endorse or promote products derived from
39 * this software without specific prior written permission.
40 *
41 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
42 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
43 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
44 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
45 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
46 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
47 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
48 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
49 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
50 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
51 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
52
53 * From src/base/os_compat_android.cc:
54 */
55# include <time64.h>
56
57static const time_t s_time_max = ~(1L << ((sizeof(time_t) * __CHAR_BIT__ - 1)));
58static const time_t s_time_min = (1L << ((sizeof(time_t)) * __CHAR_BIT__ - 1));
59
60/* 32-bit Android has only timegm64() and not timegm(). */
61time_t aws_timegm(struct tm *const t) {
62
63 time64_t result = timegm64(t);
64 if (result < s_time_min || result > s_time_max) {
65 return -1;
66 }
67 return (time_t)result;
68}
69
70#else
71
72# ifndef __APPLE__
73/* glibc.... you disappoint me.. */
74extern time_t timegm(struct tm *);
75# endif
76
77time_t aws_timegm(struct tm *const t) {
78 return timegm(t);
79}
80
81#endif /* defined(__ANDROID__) && !defined(__LP64__) */
82
83void aws_localtime(time_t time, struct tm *t) {
84 localtime_r(&time, t);
85}
86
87void aws_gmtime(time_t time, struct tm *t) {
88 gmtime_r(&time, t);
89}
90