-static int kill_all_users(void) {
- _cleanup_closedir_ DIR *d = NULL;
- struct dirent *de;
- int r = 0;
-
- d = opendir("/run/systemd/users");
- if (!d) {
- if (errno == ENOENT)
- return 0;
-
- log_error("Failed to open /run/systemd/users: %m");
- return -errno;
- }
-
- FOREACH_DIRENT(de, d, return -errno) {
- _cleanup_free_ char *cgroup = NULL;
- char *a;
- int k;
-
- if (!dirent_is_file(de))
- continue;
-
- a = strappenda("/run/systemd/users/", de->d_name);
-
- k = parse_env_file(a, NEWLINE, "CGROUP", &cgroup, NULL);
- if (k < 0) {
- if (k != -ENOENT) {
- log_error("Failed to read user data: %s", strerror(-k));
- r = k;
- }
-
- continue;
- }
-
- if (!cgroup) {
- log_error("User data did not contain cgroup field.");
- r = -ENOENT;
- continue;
- }
-
- k = cg_kill_recursive_and_wait(SYSTEMD_CGROUP_CONTROLLER, cgroup, true);
- if (k < 0) {
- log_error("Failed to kill cgroup %s: %s", cgroup, strerror(-k));
- r = k;
- }
- }
-
- return r;
-}
-
-static int kill_all_sessions(void) {
- _cleanup_closedir_ DIR *d = NULL;
- struct dirent *de;
- int r = 0;
-
- d = opendir("/run/systemd/sessions");
- if (!d) {
- if (errno == ENOENT)
- return 0;
-
- log_error("Failed to open /run/systemd/sessions: %m");
- return -errno;
- }
-
- FOREACH_DIRENT(de, d, return -errno) {
- _cleanup_free_ char *cgroup = NULL;
- char *a;
- int k;
-
- if (!dirent_is_file(de))
- continue;
-
- a = strappenda("/run/systemd/sessions/", de->d_name);
-
- k = parse_env_file(a, NEWLINE, "CGROUP", &cgroup, NULL);
- if (k < 0) {
- if (k != -ENOENT) {
- log_error("Failed to read session data: %s", strerror(-k));
- r = k;
- }
-
- continue;
- }
-
- if (!cgroup) {
- log_error("Session data did not contain cgroup field.");
- r = -ENOENT;
- continue;
- }
-
- k = cg_kill_recursive_and_wait(SYSTEMD_CGROUP_CONTROLLER, cgroup, true);
- if (k < 0) {
- log_error("Failed to kill cgroup %s: %s", cgroup, strerror(-k));
- r = k;
- }
- }
-
- return r;
-}
-