mirror of
https://github.com/LadybirdBrowser/ladybird.git
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58 lines
1.2 KiB
C++
58 lines
1.2 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/Format.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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#include <stdio.h>
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#include <unistd.h>
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ErrorOr<int> serenity_main(Main::Arguments)
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{
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TRY(Core::System::pledge("stdio rpath"));
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FILE* fp = fopen("/proc/uptime", "r");
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if (!fp) {
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perror("fopen(/proc/uptime)");
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return 1;
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}
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TRY(Core::System::pledge("stdio"));
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char buffer[BUFSIZ];
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auto* p = fgets(buffer, sizeof(buffer), fp);
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if (!p) {
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perror("fgets");
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return 1;
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}
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unsigned seconds;
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sscanf(buffer, "%u", &seconds);
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out("Up ");
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if (seconds / 86400 > 0) {
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out("{} day{}, ", seconds / 86400, (seconds / 86400) == 1 ? "" : "s");
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seconds %= 86400;
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}
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if (seconds / 3600 > 0) {
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out("{} hour{}, ", seconds / 3600, (seconds / 3600) == 1 ? "" : "s");
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seconds %= 3600;
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}
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if (seconds / 60 > 0) {
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out("{} minute{}, ", seconds / 60, (seconds / 60) == 1 ? "" : "s");
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seconds %= 60;
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}
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out("{} second{}", seconds, seconds == 1 ? "" : "s");
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outln();
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fclose(fp);
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return 0;
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}
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