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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, Zachary Penn <zack@sysdevs.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/String.h>
#include <LibCore/ProcessStatisticsReader.h>
#include <LibCore/System.h>
#include <LibMain/Main.h>
#include <ctype.h>
#include <signal.h>
#include <stdlib.h>
static void print_usage_and_exit()
{
warnln("usage: killall [-signal] process_name");
exit(1);
}
static ErrorOr<int> kill_all(String const& process_name, unsigned const signum)
{
auto all_processes = Core::ProcessStatisticsReader::get_all();
if (!all_processes.has_value())
return 1;
for (auto& process : all_processes.value().processes) {
if (process.name == process_name) {
TRY(Core::System::kill(process.pid, signum));
}
}
return 0;
}
ErrorOr<int> serenity_main(Main::Arguments arguments)
{
unsigned signum = SIGTERM;
int name_argi = 1;
if (arguments.argc != 2 && arguments.argc != 3)
print_usage_and_exit();
if (arguments.argc == 3) {
name_argi = 2;
if (arguments.argv[1][0] != '-')
print_usage_and_exit();
Optional<unsigned> number;
if (isalpha(arguments.argv[1][1])) {
int value = getsignalbyname(&arguments.argv[1][1]);
if (value >= 0 && value < NSIG)
number = value;
}
if (!number.has_value())
number = String(&arguments.argv[1][1]).to_uint();
if (!number.has_value()) {
warnln("'{}' is not a valid signal name or number", &arguments.argv[1][1]);
return 2;
}
signum = number.value();
}
return kill_all(arguments.strings[name_argi], signum);
}
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