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