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/*
* Copyright (c) 2021, Aziz Berkay Yesilyurt <abyesilyurt@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/QuickSort.h>
#include <AK/Vector.h>
#include <LibCore/ArgsParser.h>
#include <LibCore/ProcessStatisticsReader.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <LibRegex/Regex.h>
ErrorOr<int> serenity_main(Main::Arguments args)
{
TRY(Core::System::pledge("stdio rpath"));
TRY(Core::System::unveil("/sys/kernel/processes", "r"));
TRY(Core::System::unveil("/etc/passwd", "r"));
TRY(Core::System::unveil(nullptr, nullptr));
bool case_insensitive = false;
bool invert_match = false;
char const* pattern = nullptr;
Core::ArgsParser args_parser;
args_parser.add_option(case_insensitive, "Make matches case-insensitive", nullptr, 'i');
args_parser.add_option(invert_match, "Select non-matching lines", "invert-match", 'v');
args_parser.add_positional_argument(pattern, "Process name to search for", "process-name");
args_parser.parse(args);
PosixOptions options {};
if (case_insensitive)
options |= PosixFlags::Insensitive;
Regex<PosixExtended> re(pattern, options);
if (re.parser_result.error != regex::Error::NoError) {
return 1;
}
auto all_processes = Core::ProcessStatisticsReader::get_all();
if (!all_processes.has_value())
return 1;
Vector<pid_t> matches;
for (auto& it : all_processes.value().processes) {
auto result = re.match(it.name, PosixFlags::Global);
if (result.success ^ invert_match) {
matches.append(it.pid);
}
}
quick_sort(matches);
for (auto& match : matches) {
outln("{}", match);
}
return 0;
}
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