diff options
Diffstat (limited to 'src/systemctl/systemctl-is-enabled.c')
| -rw-r--r-- | src/systemctl/systemctl-is-enabled.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/systemctl/systemctl-is-enabled.c b/src/systemctl/systemctl-is-enabled.c new file mode 100644 index 0000000..01d924f --- /dev/null +++ b/src/systemctl/systemctl-is-enabled.c @@ -0,0 +1,157 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "bus-error.h" +#include "bus-locator.h" +#include "systemctl-is-enabled.h" +#include "systemctl-sysv-compat.h" +#include "systemctl-util.h" +#include "systemctl.h" + +static int show_installation_targets_client_side(const char *name) { + InstallChange *changes = NULL; + size_t n_changes = 0; + UnitFileFlags flags; + char **p; + int r; + + CLEANUP_ARRAY(changes, n_changes, install_changes_free); + + p = STRV_MAKE(name); + flags = UNIT_FILE_DRY_RUN | + (arg_runtime ? UNIT_FILE_RUNTIME : 0); + + r = unit_file_disable(RUNTIME_SCOPE_SYSTEM, flags, NULL, p, &changes, &n_changes); + if (r < 0) + return log_error_errno(r, "Failed to get file links for %s: %m", name); + + FOREACH_ARRAY(c, changes, n_changes) + if (c->type == INSTALL_CHANGE_UNLINK) + printf(" %s\n", c->path); + + return 0; +} + +static int show_installation_targets(sd_bus *bus, const char *name) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + const char *link; + int r; + + r = bus_call_method(bus, bus_systemd_mgr, "GetUnitFileLinks", &error, &reply, "sb", name, arg_runtime); + if (r < 0) + return log_error_errno(r, "Failed to get unit file links for %s: %s", name, bus_error_message(&error, r)); + + r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "s"); + if (r < 0) + return bus_log_parse_error(r); + + while ((r = sd_bus_message_read(reply, "s", &link)) > 0) + printf(" %s\n", link); + + if (r < 0) + return bus_log_parse_error(r); + + r = sd_bus_message_exit_container(reply); + if (r < 0) + return bus_log_parse_error(r); + + return 0; +} + +int verb_is_enabled(int argc, char *argv[], void *userdata) { + _cleanup_strv_free_ char **names = NULL; + bool not_found, enabled; + int r; + + r = mangle_names("to check", strv_skip(argv, 1), &names); + if (r < 0) + return r; + + r = enable_sysv_units(argv[0], names); + if (r < 0) + return r; + + not_found = r == 0; /* Doesn't have SysV support or SYSV_UNIT_NOT_FOUND */ + enabled = r == SYSV_UNIT_ENABLED; + + if (install_client_side()) { + STRV_FOREACH(name, names) { + UnitFileState state; + + r = unit_file_get_state(arg_runtime_scope, arg_root, *name, &state); + if (r == -ENOENT) { + if (!arg_quiet) + puts("not-found"); + continue; + } else if (r < 0) + return log_error_errno(r, "Failed to get unit file state for %s: %m", *name); + else + not_found = false; + + if (IN_SET(state, + UNIT_FILE_ENABLED, + UNIT_FILE_ENABLED_RUNTIME, + UNIT_FILE_STATIC, + UNIT_FILE_ALIAS, + UNIT_FILE_INDIRECT, + UNIT_FILE_GENERATED)) + enabled = true; + + if (!arg_quiet) { + puts(unit_file_state_to_string(state)); + if (arg_full) { + r = show_installation_targets_client_side(*name); + if (r < 0) + return r; + } + } + } + + r = 0; + } else { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + sd_bus *bus; + + r = acquire_bus(BUS_MANAGER, &bus); + if (r < 0) + return r; + + STRV_FOREACH(name, names) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + const char *s; + + r = bus_call_method(bus, bus_systemd_mgr, "GetUnitFileState", &error, &reply, "s", *name); + if (r == -ENOENT) { + sd_bus_error_free(&error); + + if (!arg_quiet) + puts("not-found"); + continue; + } else if (r < 0) + return log_error_errno(r, + "Failed to get unit file state for %s: %s", + *name, + bus_error_message(&error, r)); + else + not_found = false; + + r = sd_bus_message_read(reply, "s", &s); + if (r < 0) + return bus_log_parse_error(r); + + if (STR_IN_SET(s, "enabled", "enabled-runtime", "static", "alias", "indirect", "generated")) + enabled = true; + + if (!arg_quiet) { + puts(s); + if (arg_full) { + r = show_installation_targets(bus, *name); + if (r < 0) + return r; + } + } + } + } + + return enabled ? EXIT_SUCCESS : not_found ? EXIT_PROGRAM_OR_SERVICES_STATUS_UNKNOWN : EXIT_FAILURE; +} |