static int killall(int sign) {
DIR *dir;
struct dirent *d;
unsigned int n_processes = 0;
if ((dir = opendir("/proc")) == NULL)
return -errno;
while ((d = readdir(dir))) {
pid_t pid;
if (parse_pid(d->d_name, &pid) < 0)
continue;
if (is_kernel_thread(pid))
continue;
if (ignore_proc(pid))
continue;
if (kill(pid, sign) == 0)
n_processes++;
else
log_warning("Could not kill %d: %m", pid);
}
closedir(dir);
return n_processes;
}
static int killall(int sig, Set *pids, bool send_sighup) {
_cleanup_closedir_ DIR *dir = NULL;
struct dirent *d;
dir = opendir("/proc");
if (!dir)
return -errno;
while ((d = readdir(dir))) {
pid_t pid;
int r;
if (d->d_type != DT_DIR &&
d->d_type != DT_UNKNOWN)
continue;
if (parse_pid(d->d_name, &pid) < 0)
continue;
if (ignore_proc(pid, sig == SIGKILL && !in_initrd()))
continue;
if (sig == SIGKILL) {
_cleanup_free_ char *s = NULL;
get_process_comm(pid, &s);
log_notice("Sending SIGKILL to PID "PID_FMT" (%s).", pid, strna(s));
}
if (kill(pid, sig) >= 0) {
if (pids) {
r = set_put(pids, PID_TO_PTR(pid));
if (r < 0)
log_oom();
}
} else if (errno != ENOENT)
log_warning_errno(errno, "Could not kill %d: %m", pid);
if (send_sighup) {
/* Optionally, also send a SIGHUP signal, but
only if the process has a controlling
tty. This is useful to allow handling of
shells which ignore SIGTERM but react to
SIGHUP. We do not send this to processes that
have no controlling TTY since we don't want to
trigger reloads of daemon processes. Also we
make sure to only send this after SIGTERM so
that SIGTERM is always first in the queue. */
if (get_ctty_devnr(pid, NULL) >= 0)
kill(pid, SIGHUP);
}
}
return set_size(pids);
}
static int killall(int sig, Set *pids) {
_cleanup_closedir_ DIR *dir = NULL;
struct dirent *d;
dir = opendir("/proc");
if (!dir)
return -errno;
while ((d = readdir(dir))) {
pid_t pid;
if (d->d_type != DT_DIR &&
d->d_type != DT_UNKNOWN)
continue;
if (parse_pid(d->d_name, &pid) < 0)
continue;
if (ignore_proc(pid))
continue;
if (sig == SIGKILL) {
_cleanup_free_ char *s;
get_process_comm(pid, &s);
log_notice("Sending SIGKILL to PID %lu (%s).", (unsigned long) pid, strna(s));
}
if (kill(pid, sig) >= 0) {
if (pids)
set_put(pids, ULONG_TO_PTR((unsigned long) pid));
} else if (errno != ENOENT)
log_warning("Could not kill %d: %m", pid);
}
return set_size(pids);
}