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bcf4ec9c61
This will require unveiling /etc/timezone itself for reading, as well as the rpath pledge promise.
67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/String.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/DateTime.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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#include <time.h>
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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TRY(Core::System::pledge("stdio settime rpath", nullptr));
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bool print_unix_date = false;
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bool print_iso_8601 = false;
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bool print_rfc_3339 = false;
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bool print_rfc_5322 = false;
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const char* set_date = nullptr;
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Core::ArgsParser args_parser;
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args_parser.add_option(set_date, "Set system date and time", "set", 's', "date");
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args_parser.add_option(print_unix_date, "Print date as Unix timestamp", "unix", 'u');
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args_parser.add_option(print_iso_8601, "Print date in ISO 8601 format", "iso-8601", 'i');
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args_parser.add_option(print_rfc_3339, "Print date in RFC 3339 format", "rfc-3339", 'r');
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args_parser.add_option(print_rfc_5322, "Print date in RFC 5322 format", "rfc-5322", 'R');
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args_parser.parse(arguments);
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if (set_date != nullptr) {
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auto number = String(set_date).to_uint();
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if (!number.has_value()) {
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warnln("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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TRY(Core::System::clock_settime(CLOCK_REALTIME, &ts));
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return 0;
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}
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// FIXME: this should be improved and will need to be cleaned up
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// when additional output formats and formatting is supported
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if (print_unix_date && print_iso_8601 && print_rfc_3339 && print_rfc_5322) {
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warnln("date: multiple output formats specified");
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return 1;
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}
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auto date = Core::DateTime::now();
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if (print_unix_date) {
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outln("{}", date.timestamp());
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} else if (print_iso_8601) {
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outln("{}", date.to_string("%Y-%m-%dT%H:%M:%S-00:00"));
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} else if (print_rfc_5322) {
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outln("{}", date.to_string("%a, %d %b %Y %H:%M:%S -0000"));
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} else if (print_rfc_3339) {
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outln("{}", date.to_string("%Y-%m-%d %H:%M:%S-00:00"));
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} else {
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outln("{}", date.to_string());
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}
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return 0;
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}
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