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/*
* Copyright © 2014 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 3, as published
* by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Ted Gould <ted.gould@canonical.com>
*/
#include "helpers.h"
int kill (pid_t pid, int signal);
pid_t getpgid (pid_t);
int
main (int argc, char * argv[])
{
/* Break off a new process group */
setpgid(0, 0);
GDBusConnection * cgmanager = cgroup_manager_connection();
g_return_val_if_fail(cgmanager != NULL, -1);
GPid selfpid = getpid();
GPid parentpid = getppid();
/* We're gonna try to kill things forever, literally. It's important
enough that we can't consider failure an option. */
gboolean killed = TRUE;
while (killed) {
GList * pidlist = pids_from_cgroup(cgmanager, NULL, NULL);
GList * head;
killed = FALSE;
for (head = pidlist; head != NULL; head = g_list_next(head)) {
GPid pid = GPOINTER_TO_INT(head->data);
/* We don't want to kill ourselves, or if we're being executed by
a script, that script, either. We also don't want things in our
process group which we forked at the opening */
if (pid != selfpid && pid != parentpid && getpgid(pid) != selfpid) {
g_debug("Killing pid: %d", pid);
kill(pid, SIGKILL);
killed = TRUE;
}
}
g_list_free(pidlist);
}
cgroup_manager_unref(cgmanager);
return 0;
}
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