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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cast/common/certificate/types.h"
#include "util/osp_logging.h"
namespace openscreen {
namespace cast {
bool operator<(const DateTime& a, const DateTime& b) {
if (a.year < b.year) {
return true;
} else if (a.year > b.year) {
return false;
}
if (a.month < b.month) {
return true;
} else if (a.month > b.month) {
return false;
}
if (a.day < b.day) {
return true;
} else if (a.day > b.day) {
return false;
}
if (a.hour < b.hour) {
return true;
} else if (a.hour > b.hour) {
return false;
}
if (a.minute < b.minute) {
return true;
} else if (a.minute > b.minute) {
return false;
}
if (a.second < b.second) {
return true;
} else if (a.second > b.second) {
return false;
}
return false;
}
bool operator>(const DateTime& a, const DateTime& b) {
return (b < a);
}
bool DateTimeFromSeconds(uint64_t seconds, DateTime* time) {
struct tm tm = {};
time_t sec = static_cast<time_t>(seconds);
OSP_DCHECK_GE(sec, 0);
OSP_DCHECK_EQ(static_cast<uint64_t>(sec), seconds);
#if defined(_WIN32)
// NOTE: This is for compiling in Chromium and is not validated in any direct
// libcast Windows build.
if (!gmtime_s(&tm, &sec)) {
return false;
}
#else
if (!gmtime_r(&sec, &tm)) {
return false;
}
#endif
time->second = tm.tm_sec;
time->minute = tm.tm_min;
time->hour = tm.tm_hour;
time->day = tm.tm_mday;
time->month = tm.tm_mon + 1;
time->year = tm.tm_year + 1900;
return true;
}
static_assert(sizeof(time_t) >= 4, "Can't avoid overflow with < 32-bits");
std::chrono::seconds DateTimeToSeconds(const DateTime& time) {
OSP_DCHECK_GE(time.month, 1);
OSP_DCHECK_GE(time.year, 1900);
// NOTE: Guard against overflow if time_t is 32-bit.
OSP_DCHECK(sizeof(time_t) >= 8 || time.year < 2038) << time.year;
struct tm tm = {};
tm.tm_sec = time.second;
tm.tm_min = time.minute;
tm.tm_hour = time.hour;
tm.tm_mday = time.day;
tm.tm_mon = time.month - 1;
tm.tm_year = time.year - 1900;
time_t sec;
#if defined(_WIN32)
sec = _mkgmtime(&tm);
#else
sec = timegm(&tm);
#endif
return std::chrono::seconds(sec);
}
} // namespace cast
} // namespace openscreen
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