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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/Optional.h>
#include <AK/String.h>
#include <LibCore/DateTime.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
int main(int argc, char** argv)
{
if (pledge("stdio settime", nullptr) < 0) {
perror("pledge");
return 1;
}
time_t now = time(nullptr);
if (argc == 2 && !strcmp(argv[1], "-u")) {
printf("%lld\n", now);
return 0;
}
if (argc == 3 && !strcmp(argv[1], "-s")) {
auto number = StringView(argv[2]).to_uint();
if (!number.has_value()) {
fprintf(stderr, "date: Invalid timestamp value");
return 1;
}
timespec ts = { number.value(), 0 };
if (clock_settime(CLOCK_REALTIME, &ts) < 0) {
perror("clock_settime");
return 1;
}
return 0;
}
printf("%s\n", Core::DateTime::from_timestamp(now).to_string().characters());
return 0;
}
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