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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "bus-error.h"
#include "bus-locator.h"
#include "pretty-print.h"
#include "syslog-util.h"
#include "systemctl-is-active.h"
#include "systemctl-sysv-compat.h"
#include "systemctl-util.h"
#include "systemctl.h"
static int check_unit_generic(int code, const UnitActiveState good_states[], size_t nb_states, char **args) {
_cleanup_strv_free_ char **names = NULL;
UnitActiveState active_state;
sd_bus *bus;
bool not_found = true, ok = false;
int r;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = expand_unit_names(bus, args, NULL, &names, NULL);
if (r < 0)
return log_error_errno(r, "Failed to expand names: %m");
STRV_FOREACH(name, names) {
_cleanup_free_ char *load_state = NULL;
r = get_state_one_unit(bus, *name, &active_state);
if (r < 0)
return r;
r = unit_load_state(bus, *name, &load_state);
if (r < 0)
return r;
if (!arg_quiet)
puts(unit_active_state_to_string(active_state));
FOREACH_ARRAY(good_state, good_states, nb_states)
if (active_state == *good_state) {
ok = true;
break;
}
if (!streq(load_state, "not-found"))
not_found = false;
}
/* We use LSB code 4 ("program or service status is unknown") when the corresponding unit file doesn't exist. */
return ok ? EXIT_SUCCESS : not_found ? EXIT_PROGRAM_OR_SERVICES_STATUS_UNKNOWN : code;
}
int verb_is_active(int argc, char *argv[], void *userdata) {
static const UnitActiveState states[] = {
UNIT_ACTIVE,
UNIT_RELOADING,
};
/* According to LSB: 3, "program is not running" */
return check_unit_generic(EXIT_PROGRAM_NOT_RUNNING, states, ELEMENTSOF(states), strv_skip(argv, 1));
}
int verb_is_failed(int argc, char *argv[], void *userdata) {
static const UnitActiveState states[] = {
UNIT_FAILED,
};
int r;
if (argc > 1)
return check_unit_generic(EXIT_PROGRAM_DEAD_AND_PID_EXISTS, states, ELEMENTSOF(states), strv_skip(argv, 1));
/* If no unit is provided, we check SystemState property of the manager, i.e. whether there're failed
* units. */
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *state = NULL;
sd_bus *bus;
r = acquire_bus(BUS_MANAGER, &bus);
if (r < 0)
return r;
r = bus_get_property_string(bus, bus_systemd_mgr, "SystemState", &error, &state);
if (r < 0)
return log_error_errno(r, "Failed to query system state: %s", bus_error_message(&error, r));
if (!arg_quiet)
puts(state);
return streq(state, "degraded") ? EXIT_SUCCESS : EXIT_FAILURE;
}
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