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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <AK/String.h>
#include <LibCore/ProcessStatisticsReader.h>
#include <ctype.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
static void print_usage_and_exit()
{
printf("usage: killall [-signal] process_name\n");
exit(1);
}
static int kill_all(const String& process_name, const unsigned signum)
{
auto processes = Core::ProcessStatisticsReader().get_all();
if (!processes.has_value())
return 1;
for (auto& it : processes.value()) {
if (it.value.name == process_name) {
int ret = kill(it.value.pid, signum);
if (ret < 0)
perror("kill");
}
}
return 0;
}
int main(int argc, char** argv)
{
unsigned signum = SIGTERM;
int name_argi = 1;
if (argc != 2 && argc != 3)
print_usage_and_exit();
if (argc == 3) {
name_argi = 2;
if (argv[1][0] != '-')
print_usage_and_exit();
Optional<unsigned> number;
if (isalpha(argv[1][1])) {
int value = getsignalbyname(&argv[1][1]);
if (value >= 0 && value < NSIG)
number = value;
}
if (!number.has_value())
number = String(&argv[1][1]).to_uint();
if (!number.has_value()) {
printf("'%s' is not a valid signal name or number\n", &argv[1][1]);
return 2;
}
signum = number.value();
}
return kill_all(argv[name_argi], signum);
}
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