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500044906d
This is not guaranteed to always work correctly as ArgsParser deals in StringViews and might have a non-properly-null-terminated string as a value. As a bonus, using StringView (and DeprecatedString where necessary) leads to nicer looking code too :^)
69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
/*
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* Copyright (c) 2022, Maxwell Trussell <maxtrussell@gmail.com>
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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 <AK/Vector.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/ProcessStatisticsReader.h>
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#include <LibCore/System.h>
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#include <LibMain/Main.h>
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#include <LibRegex/Regex.h>
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#include <LibRegex/RegexOptions.h>
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#include <signal.h>
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#include <sys/types.h>
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ErrorOr<int> serenity_main(Main::Arguments args)
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{
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TRY(Core::System::pledge("stdio proc rpath"));
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TRY(Core::System::unveil("/sys/kernel/processes", "r"));
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TRY(Core::System::unveil("/etc/passwd", "r"));
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TRY(Core::System::unveil(nullptr, nullptr));
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bool case_insensitive = false;
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bool echo = false;
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StringView pattern;
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int signal = SIGTERM;
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Core::ArgsParser args_parser;
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args_parser.add_option(case_insensitive, "Make matches case-insensitive", nullptr, 'i');
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args_parser.add_option(echo, "Display what is killed", "echo", 'e');
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args_parser.add_option(signal, "Signal number to send", "signal", 's', "number");
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args_parser.add_positional_argument(pattern, "Process name to search for", "process-name");
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args_parser.parse(args);
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auto all_processes = TRY(Core::ProcessStatisticsReader::get_all());
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PosixOptions options {};
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if (case_insensitive) {
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options |= PosixFlags::Insensitive;
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}
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Regex<PosixExtended> re(pattern, options);
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if (re.parser_result.error != regex::Error::NoError) {
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return 1;
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}
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Vector<Core::ProcessStatistics> matched_processes;
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for (auto& process : all_processes.processes) {
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auto result = re.match(process.name, PosixFlags::Global);
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if (result.success) {
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matched_processes.append(process);
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}
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}
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if (matched_processes.is_empty()) {
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return 1;
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}
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for (auto& process : matched_processes) {
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if (echo) {
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outln("{} killed (pid {})", process.name, process.pid);
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}
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kill(process.pid, signal);
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}
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return 0;
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}
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