1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 | # [Systemd](http://freedesktop.org/wiki/Software/systemd/) for Lua. This library is for working with systemd from scripts and daemons written in Lua. Where necessary, the low level `libsystemd` functions have been bound in C. Higher level functions with more idiomatic lua semantics are written in Lua on top of these C primitives. Compatible with Lua 5.1, 5.2 and 5.3 (thanks [compat-5.3](https://github.com/keplerproject/lua-compat-5.3)). # Status Waiting for API to stabilise before making an initial release. ## Todo - [x] [Notify](http://www.freedesktop.org/software/systemd/man/sd_notify.html) - Notify service manager about start-up completion and other daemon status changes - [x] [ID128](http://www.freedesktop.org/software/systemd/man/sd-id128.html) - APIs for processing 128-bit IDs - [x] [Journal](http://www.freedesktop.org/software/systemd/man/sd-journal.html) - [x] [Journal Writing](http://www.freedesktop.org/software/systemd/man/sd_journal_sendv.html) - [x] [Journal Reading](http://www.freedesktop.org/software/systemd/man/sd_journal_next.html) - [x] [Journal Change Notification](http://www.freedesktop.org/software/systemd/man/sd_journal_get_fd.html) - [x] [Login](http://www.freedesktop.org/software/systemd/man/sd-login.html) - [x] [PID/Peer Information](http://www.freedesktop.org/software/systemd/man/sd_pid_get_session.html) - [x] [User State](http://www.freedesktop.org/software/systemd/man/sd_uid_get_state.html) - [x] [Session Information](http://www.freedesktop.org/software/systemd/man/sd_session_is_active.html) - [x] [Seat Information](http://www.freedesktop.org/software/systemd/man/sd_seat_get_active.html) - [x] [Login Monitoring](http://www.freedesktop.org/software/systemd/man/sd_login_monitor.html) - Monitor login sessions, seats, users and virtual machines/containers - [ ] Unit Control - Requires use of [dbus API](http://www.freedesktop.org/wiki/Software/systemd/dbus/) # Installation lua-systemd is on luarocks: https://luarocks.org/modules/daurnimator/systemd Install via luarocks: `luarocks install --server=http://luarocks.org/manifests/daurnimator systemd` # Usage ## Bound from C All functions return `nil, error_message [, errno]` in case of error. C | Lua | Comments -----------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------|---------------------------------------- [`SD_LISTEN_FDS_START`](http://www.freedesktop.org/software/systemd/man/SD_LISTEN_FDS_START.html) | `systemd.daemon.LISTEN_FDS_START` | [`sd_notify()`](http://www.freedesktop.org/software/systemd/man/sd_notify.html) | `systemd.daemon.notify()` | [`sd_pid_notify()`](http://www.freedesktop.org/software/systemd/man/sd_pid_notify.html) | `systemd.daemon.pid_notify()` | [`sd_pid_notify_with_fds()`](http://www.freedesktop.org/software/systemd/man/sd_pid_notify_with_fds.html) | `systemd.daemon.pid_notify_with_fds()` | [`sd_booted()`](http://www.freedesktop.org/software/systemd/man/sd_booted.html) | `systemd.daemon.booted()` | [`sd_listen_fds()`](http://www.freedesktop.org/software/systemd/man/sd_listen_fds.html) | `systemd.daemon.listen_fds()` | [`sd_journal_sendv()`](http://www.freedesktop.org/software/systemd/man/sd_journal_sendv.html) | `systemd.journal.sendv()` | [`sd_journal_perror()`](http://www.freedesktop.org/software/systemd/man/sd_journal_perror.html) | `systemd.journal.perror()` | [`sd_journal_stream_fd()`](http://www.freedesktop.org/software/systemd/man/sd_journal_stream_fd.html) | `systemd.journal.stream_fd()` | On success, returns a Lua `file` object instead of raw file descriptor [`SD_JOURNAL_LOCAL_ONLY`](http://www.freedesktop.org/software/systemd/man/SD_JOURNAL_LOCAL_ONLY.html) | `systemd.journal.OPEN.LOCAL_ONLY` | [`SD_JOURNAL_RUNTIME_ONLY`](http://www.freedesktop.org/software/systemd/man/SD_JOURNAL_RUNTIME_ONLY.html) | `systemd.journal.OPEN.RUNTIME_ONLY` | [`SD_JOURNAL_SYSTEM`](http://www.freedesktop.org/software/systemd/man/SD_JOURNAL_SYSTEM.html) | `systemd.journal.OPEN.SYSTEM` | [`SD_JOURNAL_CURRENT_USER`](http://www.freedesktop.org/software/systemd/man/SD_JOURNAL_CURRENT_USER.html) | `systemd.journal.OPEN.CURRENT_USER` | [`sd_journal_open()`](http://www.freedesktop.org/software/systemd/man/sd_journal_open.html) | `systemd.journal.open()` | [`sd_journal_open_directory()`](http://www.freedesktop.org/software/systemd/man/sd_journal_open_directory.html) | `systemd.journal.open_directory()` | [`sd_journal_open_files()`](http://www.freedesktop.org/software/systemd/man/sd_journal_open_files.html) | `systemd.journal.open_files()` | [`sd_journal_open_container()`](http://www.freedesktop.org/software/systemd/man/sd_journal_open_container.html) | `systemd.journal.open_container()` | [`sd_journal_close()`](http://www.freedesktop.org/software/systemd/man/sd_journal_close.html) | | Bound as `__gc` metamethod on journal objects [`sd_journal_get_cutoff_realtime_usec()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_cutoff_realtime_usec.html) | `my_journal:get_cutoff_realtime_usec()` | [`sd_journal_get_cutoff_monotonic_usec()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_cutoff_monotonic_usec.html) | `my_journal:get_cutoff_monotonic_usec()` | [`sd_journal_get_usage()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_usage.html) | `my_journal:get_usage()` | [`sd_journal_next()`](http://www.freedesktop.org/software/systemd/man/sd_journal_next.html) | `my_journal:next()` | [`sd_journal_next_skip()`](http://www.freedesktop.org/software/systemd/man/sd_journal_next_skip.html) | `my_journal:next_skip()` | [`sd_journal_previous()`](http://www.freedesktop.org/software/systemd/man/sd_journal_previous.html) | `my_journal:previous()` | [`sd_journal_previous_skip()`](http://www.freedesktop.org/software/systemd/man/sd_journal_previous_skip.html) | `my_journal:previous_skip()` | [`sd_journal_seek_head()`](http://www.freedesktop.org/software/systemd/man/sd_journal_seek_head.html) | `my_journal:seek_head()` | [`sd_journal_seek_tail()`](http://www.freedesktop.org/software/systemd/man/sd_journal_seek_tail.html) | `my_journal:seek_tail()` | [`sd_journal_seek_monotonic_usec()`](http://www.freedesktop.org/software/systemd/man/sd_journal_seek_monotonic_usec.html) | `my_journal:seek_monotonic_usec()` | [`sd_journal_seek_realtime_usec()`](http://www.freedesktop.org/software/systemd/man/sd_journal_seek_realtime_usec.html) | `my_journal:seek_realtime_usec()` | [`sd_journal_seek_cursor()`](http://www.freedesktop.org/software/systemd/man/sd_journal_seek_cursor.html) | `my_journal:seek_cursor()` | [`sd_journal_get_cursor()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_cursor.html) | `my_journal:get_cursor()` | [`sd_journal_test_cursor()`](http://www.freedesktop.org/software/systemd/man/sd_journal_test_cursor.html) | `my_journal:test_cursor()` | [`sd_journal_get_realtime_usec()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_realtime_usec.html) | `my_journal:get_realtime_usec()` | [`sd_journal_get_monotonic_usec()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_monotonic_usec.html) | `my_journal:get_monotonic_usec()` | [`sd_journal_get_data()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_data.html) | `my_journal:get_data()` | [`sd_journal_enumerate_data()`](http://www.freedesktop.org/software/systemd/man/sd_journal_enumerate_data.html) | `my_journal:enumerate_data()` | [`sd_journal_restart_data()`](http://www.freedesktop.org/software/systemd/man/sd_journal_restart_data.html) | `my_journal:restart_data()` | [`sd_journal_query_unique()`](http://www.freedesktop.org/software/systemd/man/sd_journal_query_unique.html) | `my_journal:query_unique()` | [`sd_journal_enumerate_unique()`](http://www.freedesktop.org/software/systemd/man/sd_journal_enumerate_unique.html) | `my_journal:enumerate_unique()` | [`sd_journal_restart_unique()`](http://www.freedesktop.org/software/systemd/man/sd_journal_restart_unique.html) | `my_journal:restart_unique()` | [`sd_journal_set_data_threshold()`](http://www.freedesktop.org/software/systemd/man/sd_journal_set_data_threshold.html) | `my_journal:set_data_threshold()` | [`sd_journal_get_data_threshold()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_data_threshold.html) | `my_journal:get_data_threshold()` | [`sd_journal_add_match()`](http://www.freedesktop.org/software/systemd/man/sd_journal_add_match.html) | `my_journal:add_match()` | [`sd_journal_add_disjunction()`](http://www.freedesktop.org/software/systemd/man/sd_journal_add_disjunction.html) | `my_journal:add_disjunction()` | [`sd_journal_add_conjunction()`](http://www.freedesktop.org/software/systemd/man/sd_journal_add_conjunction.html) | `my_journal:add_conjunction()` | [`sd_journal_flush_matches()`](http://www.freedesktop.org/software/systemd/man/sd_journal_flush_matches.html) | `my_journal:flush_matches()` | [`SD_JOURNAL_NOP`](http://www.freedesktop.org/software/systemd/man/SD_JOURNAL_NOP.html) | `systemd.journal.WAKEUP.NOP` | [`SD_JOURNAL_APPEND`](http://www.freedesktop.org/software/systemd/man/SD_JOURNAL_APPEND.html) | `systemd.journal.WAKEUP.APPEND` | [`SD_JOURNAL_INVALIDATE`](http://www.freedesktop.org/software/systemd/man/SD_JOURNAL_INVALIDATE.html) | `systemd.journal.WAKEUP.INVALIDATE` | [`sd_journal_get_fd()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_fd.html) | `my_journal:get_fd()` | [`sd_journal_get_events()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_events.html) | `my_journal:get_events()` | [`sd_journal_get_timeout()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_timeout.html) | `my_journal:get_timeout()` | Returns `false` if timeout isn't available, otherwise returns value in seconds [`sd_journal_process()`](http://www.freedesktop.org/software/systemd/man/sd_journal_process.html) | `my_journal:process()` | [`sd_journal_wait()`](http://www.freedesktop.org/software/systemd/man/sd_journal_wait.html) | `my_journal:wait()` | `timeout` is in seconds instead of microseconds [`sd_journal_reliable_fd()`](http://www.freedesktop.org/software/systemd/man/sd_journal_reliable_fd.html) | `my_journal:reliable_fd()` | [`sd_id128_randomize()`](http://www.freedesktop.org/software/systemd/man/sd_id128_randomize.html) | `systemd.id128.randomize()` | Also available as `randomise` for any non-americans out there [`sd_id128_from_string()`](http://www.freedesktop.org/software/systemd/man/sd_id128_from_string.html) | `systemd.id128.from_string()` | [`sd_id128_get_machine()`](http://www.freedesktop.org/software/systemd/man/sd_id128_get_machine.html) | `systemd.id128.get_machine()` | [`sd_id128_get_boot()`](http://www.freedesktop.org/software/systemd/man/sd_id128_get_boot.html) | `systemd.id128.get_boot()` | [`sd_id128_to_string()`](http://www.freedesktop.org/software/systemd/man/sd_id128_to_string.html) | `my_id128:to_string()` | Also available as `__tostring` metamethod: `tostring(my_id128_t)` [`sd_id128_equal()`](http://www.freedesktop.org/software/systemd/man/sd_id128_equal.html) | `id128_a == id128_b` | Bound as `__eq` metamethod [`sd_journal_get_catalog_for_message_id()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_catalog_for_message_id.html) | `my_id128:get_catalog()` | [`sd_get_seats()`](http://www.freedesktop.org/software/systemd/man/sd_get_seats.html) | `systemd.login.get_seats()` | [`sd_get_sessions()`](http://www.freedesktop.org/software/systemd/man/sd_get_sessions.html) | `systemd.login.get_sessions()` | [`sd_get_uids()`](http://www.freedesktop.org/software/systemd/man/sd_get_uids.html) | `systemd.login.get_uids()` | [`sd_get_machine_names()`](http://www.freedesktop.org/software/systemd/man/sd_get_machine_names.html) | `systemd.login.get_machine_names()` | [`sd_pid_get_session()`](http://www.freedesktop.org/software/systemd/man/sd_pid_get_session.html) | `systemd.login.pid_get_session()` | [`sd_pid_get_unit()`](http://www.freedesktop.org/software/systemd/man/sd_pid_get_unit.html) | `systemd.login.pid_get_unit()` | [`sd_pid_get_user_unit()`](http://www.freedesktop.org/software/systemd/man/sd_pid_get_user_unit.html) | `systemd.login.pid_get_user_unit()` | [`sd_pid_get_owner_uid()`](http://www.freedesktop.org/software/systemd/man/sd_pid_get_owner_uid.html) | `systemd.login.pid_get_owner_uid()` | [`sd_pid_get_machine_name()`](http://www.freedesktop.org/software/systemd/man/sd_pid_get_machine_name.html) | `systemd.login.pid_get_machine_name()` | [`sd_pid_get_slice()`](http://www.freedesktop.org/software/systemd/man/sd_pid_get_slice.html) | `systemd.login.pid_get_slice()` | [`sd_pid_get_user_slice()`](http://www.freedesktop.org/software/systemd/man/sd_pid_get_user_slice.html) | `systemd.login.pid_get_user_slice()` | [`sd_peer_get_session()`](http://www.freedesktop.org/software/systemd/man/sd_peer_get_session.html) | `systemd.login.peer_get_session()` | [`sd_peer_get_unit()`](http://www.freedesktop.org/software/systemd/man/sd_peer_get_unit.html) | `systemd.login.peer_get_unit()` | [`sd_peer_get_user_unit()`](http://www.freedesktop.org/software/systemd/man/sd_peer_get_user_unit.html) | `systemd.login.peer_get_user_unit()` | [`sd_peer_get_owner_uid()`](http://www.freedesktop.org/software/systemd/man/sd_peer_get_owner_uid.html) | `systemd.login.peer_get_owner_uid()` | [`sd_peer_get_machine_name()`](http://www.freedesktop.org/software/systemd/man/sd_peer_get_machine_name.html) | `systemd.login.peer_get_machine_name()` | [`sd_peer_get_slice()`](http://www.freedesktop.org/software/systemd/man/sd_peer_get_slice.html) | `systemd.login.peer_get_slice()` | [`sd_peer_get_user_slice()`](http://www.freedesktop.org/software/systemd/man/sd_peer_get_user_slice.html) | `systemd.login.peer_get_user_slice()` | [`sd_uid_get_state()`](http://www.freedesktop.org/software/systemd/man/sd_uid_get_state.html) | `systemd.login.uid_get_state()` | [`sd_uid_is_on_seat()`](http://www.freedesktop.org/software/systemd/man/sd_uid_is_on_seat.html) | `systemd.login.uid_is_on_seat()` | [`sd_uid_get_sessions()`](http://www.freedesktop.org/software/systemd/man/sd_uid_get_sessions.html) | `systemd.login.uid_get_sessions()` | [`sd_uid_get_seats()`](http://www.freedesktop.org/software/systemd/man/sd_uid_get_seats.html) | `systemd.login.uid_get_seats()` | [`sd_uid_get_display()`](http://www.freedesktop.org/software/systemd/man/sd_uid_get_display.html) | `systemd.login.uid_get_display()` | [`sd_session_is_active()`](http://www.freedesktop.org/software/systemd/man/sd_session_is_active.html) | `systemd.login.session_is_active()` | [`sd_session_is_remote()`](http://www.freedesktop.org/software/systemd/man/sd_session_is_remote.html) | `systemd.login.session_is_remote()` | [`sd_session_get_state()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_state.html) | `systemd.login.session_get_state()` | [`sd_session_get_uid()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_uid.html) | `systemd.login.session_get_uid()` | [`sd_session_get_seat()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_seat.html) | `systemd.login.session_get_seat()` | [`sd_session_get_service()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_service.html) | `systemd.login.session_get_service()` | [`sd_session_get_type()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_type.html) | `systemd.login.session_get_type()` | [`sd_session_get_class()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_class.html) | `systemd.login.session_get_class()` | [`sd_session_get_desktop()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_desktop.html) | `systemd.login.session_get_desktop()` | [`sd_session_get_display()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_display.html) | `systemd.login.session_get_display()` | [`sd_session_get_remote_host()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_remote_host.html) | `systemd.login.session_get_remote_host()`| [`sd_session_get_remote_user()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_remote_user.html) | `systemd.login.session_get_remote_user()`| [`sd_session_get_tty()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_tty.html) | `systemd.login.session_get_tty()` | [`sd_session_get_vt()`](http://www.freedesktop.org/software/systemd/man/sd_session_get_vt.html) | `systemd.login.session_get_vt()` | [`sd_seat_get_active()`](http://www.freedesktop.org/software/systemd/man/sd_seat_get_active.html) | `systemd.login.seat_get_active()` | On success, returns `session, uid` [`sd_seat_get_sessions()`](http://www.freedesktop.org/software/systemd/man/sd_seat_get_sessions.html) | `systemd.login.seat_get_sessions()` | On success, returns `sessions, uids` [`sd_seat_can_multi_session()`](http://www.freedesktop.org/software/systemd/man/sd_seat_can_multi_session.html) | `systemd.login.seat_can_multi_session()` | [`sd_seat_can_tty()`](http://www.freedesktop.org/software/systemd/man/sd_seat_can_tty.html) | `systemd.login.seat_can_tty()` | [`sd_seat_can_graphical()`](http://www.freedesktop.org/software/systemd/man/sd_seat_can_graphical.html) | `systemd.login.seat_can_graphical()` | [`sd_machine_get_class()`](http://www.freedesktop.org/software/systemd/man/sd_machine_get_class.html) | `systemd.login.machine_get_class()` | [`sd_machine_get_ifindices()`](http://www.freedesktop.org/software/systemd/man/sd_machine_get_ifindices.html) | `systemd.login.machine_get_ifindices()` | [`sd_login_monitor_new()`](http://www.freedesktop.org/software/systemd/man/sd_login_monitor_new.html) | `systemd.login.monitor()` | [`sd_login_monitor_unref()`](http://www.freedesktop.org/software/systemd/man/sd_login_monitor_unref.html) | | Bound as `__gc` metamethod on monitor objects [`sd_login_monitor_flush()`](http://www.freedesktop.org/software/systemd/man/sd_login_monitor_flush.html) | `my_login_monitor:flush()` | [`sd_login_monitor_get_fd()`](http://www.freedesktop.org/software/systemd/man/sd_login_monitor_get_fd.html) | `my_login_monitor:get_fd()` | [`sd_login_monitor_get_events()`](http://www.freedesktop.org/software/systemd/man/sd_login_monitor_get_events.html) | `my_login_monitor:get_events()` | [`sd_login_monitor_get_timeout()`](http://www.freedesktop.org/software/systemd/man/sd_login_monitor_get_timeout.html) | `my_login_monitor:get_timeout()` | Returns `false` if timeout isn't available, otherwise returns value in seconds ## Misc extras ### `systemd.daemon.notifyt(tbl)` and `systemd.daemon.pid_notifyt(tbl)` Like `notify`, but takes a lua table instead of a newline delimited list. Numbers will be coerced to strings. ```lua notifyt { READY = 1, STATUS = "Server now accepting connections", WATCHDOG = 1 } ``` ### `interval = systemd.daemon.watchdog_enabled()` Returns the watchdog interval (in seconds) if there is one set otherwise returns `false`. You should call `kick_dog` or `notify("WATCHDOG=1")` every half of this interval. Similar functionality to [`sd_watchdog_enabled()`](http://www.freedesktop.org/software/systemd/man/sd_watchdog_enabled.html) ### `systemd.daemon.kick_dog()` Tells systemd to update the watchdog timestamp. This should be called on an interval. ### `systemd.journal.LOG` Table containing the `syslog(3)` priority constants: `EMERG`, `ALERT`, `CRIT`, `ERR`, `WARNING`, `NOTICE`, `INFO`, `DEBUG` Useful as the second argument to `systemd.journal.streamfd()` ### `systemd.journal.print(priority, fmt_string, ...)` Same argument signature as C, but written in lua on top of `sendv()` and `string.format()` ### `systemd.journal.sendt(tbl)` Log a message to the journal with the key/value pairs from `tbl` ```lua systemd.journal.sendt { SYSLOG_IDENTIFIER = "identifier" ; SYSLOG_FACILITY = "facility" ; PRIORITY = systemd.journal.LOG.ERR ; MESSAGE = "something happended!" ; MY_CUSTOM_FIELD = "extra detail."; } ``` ### `value = my_journal:get(field)` Returns the given field from the current journal entry (which may be `nil`) Throws a lua error on failure. ### `my_journal:each_data()` A valid lua iterator that enumerates through field, value pairs. ```lua for field, value in my_journal:each_data() do print(field, value) end ``` Throws a lua error on failure. ### `my_journal:each_unique(field_name)` A valid lua iterator that enumerates through unique field values. ```lua -- Print each different `_SYSTEMD_UNIT` for value in my_journal:each_unique("_SYSTEMD_UNIT") do print(value) end ``` Throws a lua error on failure. ### `t = my_journal:to_table()` Converts the current journal entry to a lua table. Includes [Address Fields](http://www.freedesktop.org/software/systemd/man/systemd.journal-fields.html#Address%20Fields): - `__CURSOR` - `__REALTIME_TIMESTAMP` - `__MONOTONIC_TIMESTAMP` ### `text = my_journal:get_catalog()` Looks up the current journal entry's `MESSAGE_ID` in the [message catalog](http://www.freedesktop.org/wiki/Software/systemd/catalog/). Substitutes the templated fields (between `@` symbols) with values from this journal entry. Returns: - the filled out catalogue entry as a string - `false` if `MESSAGE_ID` is not set, or does not exist in the catalogue - `nil, err_msg, errno` in case of failure. Same functionality as [`sd_journal_get_catalog()`](http://www.freedesktop.org/software/systemd/man/sd_journal_get_catalog.html). ### `systemd.messages` A table of well-known message ids as `id128` objects. Taken from [`sd-messages.h`](http://cgit.freedesktop.org/systemd/systemd/tree/src/systemd/sd-messages.h?id=HEAD) |
Commit History @8f5b30a0-aa78-4c44-9f85-92f336ffb7c5/main
0
»»
0
»»