/* SPDX-License-Identifier: LGPL-2.1-or-later */

#include "bus-error.h"
#include "bus-locator.h"
#include "systemctl-kill.h"
#include "systemctl-util.h"
#include "systemctl.h"

int kill_unit(int argc, char *argv[], void *userdata) {
        _cleanup_strv_free_ char **names = NULL;
        char *kill_who = NULL, **name;
        sd_bus *bus;
        int r, q;

        r = acquire_bus(BUS_MANAGER, &bus);
        if (r < 0)
                return r;

        polkit_agent_open_maybe();

        if (!arg_kill_who)
                arg_kill_who = "all";

        /* --fail was specified */
        if (streq(arg_job_mode, "fail"))
                kill_who = strjoina(arg_kill_who, "-fail");

        r = expand_unit_names(bus, strv_skip(argv, 1), NULL, &names, NULL);
        if (r < 0)
                return log_error_errno(r, "Failed to expand names: %m");

        STRV_FOREACH(name, names) {
                _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;

                q = bus_call_method(
                                bus,
                                bus_systemd_mgr,
                                "KillUnit",
                                &error,
                                NULL,
                                "ssi", *name, kill_who ? kill_who : arg_kill_who, arg_signal);
                if (q < 0) {
                        log_error_errno(q, "Failed to kill unit %s: %s", *name, bus_error_message(&error, q));
                        if (r == 0)
                                r = q;
                }
        }

        return r;
}
