mirror of
https://github.com/SerenityOS/serenity
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fdfda6dec2
Get rid of the weird old signature: - int StringType::to_int(bool& ok) const And replace it with sensible new signature: - Optional<int> StringType::to_int() const
64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* 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 are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* 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 notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/Optional.h>
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#include <AK/String.h>
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#include <LibCore/DateTime.h>
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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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int main(int argc, char** argv)
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{
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if (pledge("stdio settime", nullptr) < 0) {
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perror("pledge");
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return 1;
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}
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time_t now = time(nullptr);
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if (argc == 2 && !strcmp(argv[1], "-u")) {
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printf("%lld\n", now);
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return 0;
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}
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if (argc == 3 && !strcmp(argv[1], "-s")) {
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auto number = StringView(argv[2]).to_uint();
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if (!number.has_value()) {
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fprintf(stderr, "date: Invalid timestamp value");
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return 1;
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}
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timespec ts = { number.value(), 0 };
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if (clock_settime(CLOCK_REALTIME, &ts) < 0) {
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perror("clock_settime");
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return 1;
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}
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return 0;
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}
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printf("%s\n", Core::DateTime::from_timestamp(now).to_string().characters());
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return 0;
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}
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