4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 only,
8 * as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License version 2 for more details (a copy is included
14 * in the LICENSE file that accompanied this code).
16 * You should have received a copy of the GNU General Public License
17 * version 2 along with this program; If not, see
18 * http://www.gnu.org/licenses/gpl-2.0.html
23 * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
24 * Use is subject to license terms.
26 * Copyright (c) 2012, 2016, Intel Corporation.
29 * This file is part of Lustre, http://www.lustre.org/
30 * Lustre is a trademark of Sun Microsystems, Inc.
34 * Author: Peter J. Braam <braam@clusterfs.com>
35 * Author: Phil Schwan <phil@clusterfs.com>
36 * Author: Robert Read <rread@clusterfs.com>
44 #include <libcfs/util/parser.h>
45 #include <lnet/lnetctl.h>
47 #include <lustre_ver.h>
49 static int lctl_list_commands(int argc, char **argv);
51 static int jt_opt_ignore_errors(int argc, char **argv) {
52 Parser_ignore_errors(1);
56 command_t cmdlist[] = {
58 {"===== metacommands =======", NULL, 0, "metacommands"},
59 {"--device", jt_opt_device, 0,
60 "run <command> after connecting to device <devno>\n"
61 "--device <devno> <command [args ...]>"},
62 {"--ignore_errors", jt_opt_ignore_errors, 0,
63 "ignore errors that occur during script processing\n"
65 {"ignore_errors", jt_opt_ignore_errors, 0,
66 "ignore errors that occur during script processing\n"
69 /* User interface commands */
70 {"======== control =========", NULL, 0, "control commands"},
71 {"help", Parser_help, 0, "help"},
72 {"lustre_build_version", jt_get_version, 0,
73 "print version of Lustre modules\n"
74 "usage: lustre_build_version"},
75 {"exit", Parser_quit, 0, "quit"},
76 {"quit", Parser_quit, 0, "quit"},
77 {"--version", Parser_version, 0,
78 "print build version of this utility and exit"},
79 {"--list-commands", lctl_list_commands, 0,
80 "list commands supported by this utility and exit"},
82 /* Network configuration commands */
83 {"===== network config =====", NULL, 0, "network config"},
84 {"--net", jt_opt_net, 0, "run <command> after selecting network <net>\n"
85 "usage: --net <tcp/o2ib/...> <command>"},
86 {"network", jt_ptl_network, 0, "configure LNET"
87 "usage: network up|down"},
88 {"net", jt_ptl_network, 0, "configure LNET"
89 "usage: net up|down"},
90 {"list_nids", jt_ptl_list_nids, 0, "list local NIDs"
91 "usage: list_nids [all]"},
92 {"which_nid", jt_ptl_which_nid, 0, "choose a NID"
93 "usage: which_nid NID [NID...]"},
94 {"replace_nids", jt_replace_nids, 0,
95 "replace primary NIDs for a device\n"
96 "usage: replace_nids <device> <nid1>[,nid2,nid3]"},
97 {"interface_list", jt_ptl_print_interfaces, 0,
98 "print network interface entries\n"
99 "usage: interface_list"},
100 {"peer_list", jt_ptl_print_peers, 0, "print peer LNet NIDs\n"
102 {"conn_list", jt_ptl_print_connections, 0,
103 "print all the remote LNet connections\n"
105 {"route_list", jt_ptl_print_routes, 0,
106 "print the LNet routing table, same as show_route\n"
107 "usage: route_list"},
108 {"show_route", jt_ptl_print_routes, 0,
109 "print the LNet routing table, same as route_list\n"
110 "usage: show_route"},
111 {"ping", jt_ptl_ping, 0, "Check LNET connectivity\n"
112 "usage: ping nid [timeout] [pid]"},
113 {"net_drop_add", jt_ptl_drop_add, 0, "Add LNet drop rule\n"
114 "usage: net_drop_add <-s | --source NID>\n"
115 " <-d | --dest NID>\n"
116 " <<-r | --rate DROP_RATE> |\n"
117 " <-i | --interval SECONDS>>\n"
118 " [<-p | --portal> PORTAL...]\n"
119 " [<-m | --message> <PUT|ACK|GET|REPLY>...]\n"},
120 {"net_drop_del", jt_ptl_drop_del, 0, "remove LNet drop rule\n"
121 "usage: net_drop_del <[-a | --all] |\n"
122 " <-s | --source NID>\n"
123 " <-d | --dest NID>>\n"},
124 {"net_drop_reset", jt_ptl_drop_reset, 0, "reset drop rule stats\n"
125 "usage: net_drop_reset"},
126 {"net_drop_list", jt_ptl_drop_list, 0, "list LNet drop rules\n"
127 "usage: net_drop_list"},
128 {"net_delay_add", jt_ptl_delay_add, 0, "Add LNet delay rule\n"
129 "usage: net_delay_add <-s | --source NID>\n"
130 " <-d | --dest NID>\n"
131 " <<-r | --rate DROP_RATE> |\n"
132 " <-i | --interval SECONDS>>\n"
133 " <-l | --latency SECONDS>\n"
134 " [<-p | --portal> PORTAL...]\n"
135 " [<-m | --message> <PUT|ACK|GET|REPLY>...]\n"},
136 {"net_delay_del", jt_ptl_delay_del, 0, "remove LNet delay rule\n"
137 "usage: net_delay_del <[-a | --all] |\n"
138 " <-s | --source NID>\n"
139 " <-d | --dest NID>>\n"},
140 {"net_delay_reset", jt_ptl_delay_reset, 0, "reset delay rule stats\n"
141 "usage: net_delay_reset"},
142 {"net_delay_list", jt_ptl_delay_list, 0, "list LNet delay rules\n"
143 "usage: net_delay_list"},
145 /* Device selection commands */
146 {"==== obd device selection ====", NULL, 0, "device selection"},
147 {"device", jt_obd_device, 0,
148 "set current device to <name|devno>\n"
149 "usage: device <%name|$name|devno>"},
150 {"device_list", jt_obd_list, 0, "show all devices\n"
151 "usage: device_list"},
152 {"dl", jt_obd_list, 0, "show all devices\n"
155 /* Device operations */
156 {"==== obd device operations ====", NULL, 0, "device operations"},
157 {"activate", jt_obd_activate, 0, "activate an import\n"},
158 {"deactivate", jt_obd_deactivate, 0, "deactivate an import. "
159 "This command should be used on failed OSC devices in an MDT LOV.\n"},
160 {"abort_recovery", jt_obd_abort_recovery, 0,
161 "abort recovery on a restarting MDT or OST device\n"},
162 {"set_timeout", jt_lcfg_set_timeout, 0,
163 "usage: conf_param obd_timeout=<secs>\n"},
164 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
165 {"conf_param", jt_lcfg_mgsparam, 0,"set a permanent config parameter.\n"
166 "This command must be run on the MGS node\n"
167 "usage: conf_param [-d] <target.keyword=val>\n"
168 " -d Remove the permanent setting."},
170 {"local_param", jt_lcfg_param, 0, "set a temporary, local param\n"
171 "usage: local_param <target.keyword=val>\n"},
172 {"get_param", jt_lcfg_getparam, 0, "get the Lustre or LNET parameter\n"
173 "usage: get_param [-F|n|-N|-R] <param_path1 param_path2 ...>\n"
174 "Get the value of Lustre or LNET parameter from the specified path.\n"
175 "The path can contain shell-style filename patterns.\n"
176 " -F When -N specified, add '/', '@' or '=' for directories,\n"
177 " symlinks and writeable files, respectively.\n"
178 " -n Print only the value and not parameter name.\n"
179 " -N Print only matched parameter names and not the values.\n"
180 " (Especially useful when using patterns.)\n"
181 " -R Get parameters recursively from the specified entry.\n"},
182 {"set_param", jt_lcfg_setparam, 0, "set the Lustre or LNET parameter\n"
183 "usage: set_param [-n] [-P] [-d]"
184 "<param_path1=value1 param_path2=value2 ...>\n"
185 "Set the value of the Lustre or LNET parameter at the specified path.\n"
186 " -n Disable printing of the key name when printing values.\n"
187 " -P Set the parameter permanently, filesystem-wide.\n"
188 " -d Remove the permanent setting (only with -P option).\n"},
189 {"list_param", jt_lcfg_listparam, 0,
190 "list the Lustre or LNET parameter name\n"
191 "usage: list_param [-F|-R|-D] <param_path1 param_path2 ...>\n"
192 "List the name of Lustre or LNET parameter from the specified path.\n"
193 " -F Add '/', '@' or '=' for dirs, symlinks and writeable files,\n"
195 " -D Only list directories.\n"
196 " -R Recursively list all parameters under the specified path.\n"},
199 {"==== debugging control ====", NULL, 0, "debug"},
200 {"debug_daemon", jt_dbg_debug_daemon, 0,
201 "debug daemon control and dump to a file\n"
202 "usage: debug_daemon {start file [#MB]|stop}"},
203 {"debug_kernel", jt_dbg_debug_kernel, 0,
204 "get debug buffer and dump to a file, same as dk\n"
205 "usage: debug_kernel [file] [raw]"},
206 {"dk", jt_dbg_debug_kernel, 0,
207 "get debug buffer and dump to a file, same as debug_kernel\n"
208 "usage: dk [file] [raw]"},
209 {"debug_file", jt_dbg_debug_file, 0,
210 "convert a binary debug file dumped by the kernel to ASCII text\n"
211 "usage: debug_file <input> [output]"},
212 {"df", jt_dbg_debug_file, 0,
213 "read debug buffer from input and dump to output, same as debug_file\n"
214 "usage: df <input> [output]"},
215 {"clear", jt_dbg_clear_debug_buf, 0, "clear kernel debug buffer\n"
217 {"mark", jt_dbg_mark_debug_buf, 0,
218 "insert marker text in kernel debug buffer\n"
219 "usage: mark <text>"},
220 {"filter", jt_dbg_filter, 0, "filter message type\n"
221 "usage: filter <subsystem id/debug mask>"},
222 {"show", jt_dbg_show, 0, "Show specific type of messages\n"
223 "usage: show <subsystem id/debug mask>"},
224 {"debug_list", jt_dbg_list, 0, "list subsystem and debug types\n"
225 "usage: debug_list <subs/types>"},
226 {"modules", jt_dbg_modules, 0,
227 "provide gdb-friendly module information\n"
228 "usage: modules <path>"},
231 {"=== Pools ==", NULL, 0, "pool management"},
232 {"pool_new", jt_pool_cmd, 0,
234 "usage: pool_new <fsname>.<poolname>"},
235 {"pool_add", jt_pool_cmd, 0,
236 "add the named OSTs to the pool\n"
237 "usage: pool_add <fsname>.<poolname> <ostname indexed list>"},
238 {"pool_remove", jt_pool_cmd, 0,
239 "remove the named OST from the pool\n"
240 "usage: pool_remove <fsname>.<poolname> <ostname indexed list>"},
241 {"pool_destroy", jt_pool_cmd, 0,
243 "usage: pool_destroy <fsname>.<poolname>"},
244 {"pool_list", jt_pool_cmd, 0,
245 "list pools and pools members\n"
246 "usage: pool_list <fsname>[.<poolname>] | <pathname>"},
248 /* Nodemap commands */
249 {"=== Nodemap ===", NULL, 0, "nodemap management"},
250 {"nodemap_activate", jt_nodemap_activate, 0,
251 "activate nodemap idmapping functions\n"
252 "usage: nodemap_activate {0|1}"},
253 {"nodemap_add", jt_nodemap_add, 0,
254 "add a new nodemap\n"
255 "usage: nodemap_add <nodemap_name>"},
256 {"nodemap_del", jt_nodemap_del, 0,
258 "usage: nodemap_del <nodemap_name>"},
259 {"nodemap_add_range", jt_nodemap_add_range, 0,
260 "add a range to a nodemap\n"
261 "usage: nodemap_add_range <nid_range>"},
262 {"nodemap_del_range", jt_nodemap_del_range, 0,
263 "add a range to a nodemap\n"
264 "usage: nodemap_del_range <nid_range>"},
265 {"nodemap_modify", jt_nodemap_modify, 0,
266 "modify a nodemap parameters"
267 "usage: nodemap_modify nodemap_name param value"},
268 {"nodemap_add_idmap", jt_nodemap_add_idmap, 0,
269 "add a UID or GID mapping to a nodemap"},
270 {"nodemap_del_idmap", jt_nodemap_del_idmap, 0,
271 "delete a UID or GID mapping from a nodemap"},
272 {"nodemap_set_fileset", jt_nodemap_set_fileset, 0,
273 "set a fileset on a nodemap\n"
274 "usage: nodemap_set_fileset <fileset>"},
275 {"nodemap_test_nid", jt_nodemap_test_nid, 0,
276 "usage: nodemap_test_nid <nid>"},
277 {"nodemap_test_id", jt_nodemap_test_id, 0,
278 "Usage: nodemap_test_id --nid <nid> --idtype [uid|gid] --id <id>"},
279 {"nodemap_info", jt_nodemap_info, 0,
280 "Usage: nodemap_info [list|nodemap_name|all]"},
282 /* Changelog commands */
283 {"=== Changelogs ==", NULL, 0, "changelog user management"},
284 {"changelog_register", jt_changelog_register, 0,
285 "register a new persistent changelog user, returns id\n"
286 "usage: --device <mdtname> changelog_register [-n]"},
287 {"changelog_deregister", jt_changelog_deregister, 0,
288 "deregister an existing changelog user\n"
289 "usage: --device <mdtname> changelog_deregister <id>"},
291 /* Device configuration commands */
292 {"== device setup (these are not normally used post 1.4) ==",
293 NULL, 0, "device config"},
294 {"attach", jt_lcfg_attach, 0,
295 "set the type, name, and uuid of the current device\n"
296 "usage: attach type name uuid"},
297 {"detach", jt_obd_detach, 0,
298 "remove driver (and name and uuid) from current device\n"
300 {"setup", jt_lcfg_setup, 0,
301 "type specific device configuration information\n"
302 "usage: setup <args...>"},
303 {"cleanup", jt_obd_cleanup, 0, "cleanup previously setup device\n"
304 "usage: cleanup [force | failover]"},
306 /* Test only commands */
307 {"==== testing (DANGEROUS) ====", NULL, 0, "testing (DANGEROUS)"},
308 {"--threads", jt_opt_threads, 0,
309 "run <threads> separate instances of <command> on device <devno>\n"
310 "--threads <threads> <verbose> <devno> <command [args ...]>"},
311 {"lookup", jt_obd_mdc_lookup, 0, "report file mode info\n"
312 "usage: lookup <directory> <file>"},
313 {"readonly", jt_obd_set_readonly, 0,
314 "disable writes to the underlying device\n"},
315 {"notransno", jt_obd_no_transno, 0,
316 "disable sending of committed-transno updates\n"},
317 {"add_uuid", jt_lcfg_add_uuid, 0, "associate a UUID with a NID\n"
318 "usage: add_uuid <uuid> <nid>"},
319 {"del_uuid", jt_lcfg_del_uuid, 0, "delete a UUID association\n"
320 "usage: del_uuid <uuid>"},
321 {"add_peer", jt_ptl_add_peer, 0, "add an peer entry\n"
322 "usage: add_peer <nid> <host> <port>"},
323 {"del_peer", jt_ptl_del_peer, 0, "remove an peer entry\n"
324 "usage: del_peer [<nid>] [<ipaddr|pid>]"},
325 {"add_conn ", jt_lcfg_add_conn, 0,
326 "usage: add_conn <conn_uuid> [priority]\n"},
327 {"del_conn ", jt_lcfg_del_conn, 0,
328 "usage: del_conn <conn_uuid>"},
329 {"disconnect", jt_ptl_disconnect, 0, "disconnect from a remote NID\n"
330 "usage: disconnect [<nid>]"},
331 {"push", jt_ptl_push_connection, 0, "flush connection to a remote NID\n"
332 "usage: push [<nid>]"},
333 {"mynid", jt_ptl_mynid, 0, "inform the LND of the local NID. "
334 "The NID defaults to hostname for TCP networks.\n"
335 "usage: mynid [<nid>]"},
336 {"fail", jt_ptl_fail_nid, 0, "fail/restore network communications\n"
337 "Omitting the count means indefinitely, 0 means restore, "
338 "otherwise fail 'count' messages.\n"
339 "usage: fail nid|_all_ [count]"},
341 /*Test commands for echo client*/
342 {"test_create", jt_obd_test_create, 0,
343 "create files on MDT by echo client\n"
344 "usage: test_create [-d parent_basedir] <-D parent_count> "
345 "[-b child_base_id] <-c stripe_count> <-n count> <-t time>\n"},
346 {"test_mkdir", jt_obd_test_mkdir, 0,
347 "mkdir on MDT by echo client\n"
348 "usage: test_mkdir [-d parent_basedir] <-D parent_count>"
349 "[-b child_base_id] [-n count] <-t time>\n"},
350 {"test_destroy", jt_obd_test_destroy, 0,
351 "Destroy files on MDT by echo client\n"
352 "usage: test_destroy [-d parent_basedir] <-D parent_count>"
353 "[-b child_base_id] [-n count] <-t time>\n"},
354 {"test_rmdir", jt_obd_test_rmdir, 0,
355 "rmdir on MDT by echo client\n"
356 "usage: test_rmdir [-d parent_basedir] <-D parent_count>"
357 "[-b child_base_id] [-n count] <-t time>\n"},
358 {"test_lookup", jt_obd_test_lookup, 0,
359 "lookup files on MDT by echo client\n"
360 "usage: test_lookup [-d parent_basedir] <-D parent_count>"
361 "[-b child_base_id] [-n count] <-t time>\n"},
362 {"test_setxattr", jt_obd_test_setxattr, 0,
363 "Set EA for files/directory on MDT by echo client\n"
364 "usage: test_setxattr [-d parent_baseid] <-D parent_count>"
365 "[-b child_base_id] [-n count] <-t time>\n"},
366 {"test_md_getattr", jt_obd_test_md_getattr, 0,
367 "getattr files on MDT by echo client\n"
368 "usage: test_md_getattr [-d parent_basedir] <-D parent_count>"
369 "[-b child_base_id] [-n count] <-t time>\n"},
370 {"getattr", jt_obd_getattr, 0,
371 "get attribute for OST object <objid>\n"
372 "usage: getattr <objid>"},
373 {"setattr", jt_obd_setattr, 0,
374 "set mode attribute for OST object <objid>\n"
375 "usage: setattr <objid> <mode>"},
376 {"create", jt_obd_create, 0,
377 "create <num> OST objects (with <mode>)\n"
378 "usage: create [num [mode [verbose [lsm data]]]]"},
379 {"destroy", jt_obd_destroy, 0,
380 "destroy OST object <objid> [num [verbose]]\n"
381 "usage: destroy <num> objects, starting at objid <objid>"},
382 {"test_getattr", jt_obd_test_getattr, 0,
383 "do <num> getattrs (on OST object <objid> (objid+1 on each thread))\n"
384 "usage: test_getattr <num> [verbose [[t]objid]]"},
385 {"test_setattr", jt_obd_test_setattr, 0,
386 "do <num> setattrs (on OST object <objid> (objid+1 on each thread))\n"
387 "usage: test_setattr <num> [verbose [[t]objid]]"},
388 {"test_brw", jt_obd_test_brw, 0,
389 "do <num> bulk read/writes (<npages> per I/O, on OST object <objid>)\n"
390 "usage: test_brw [t]<num> [write [verbose [npages [[t]objid]]]]"},
391 {"getobjversion", jt_get_obj_version, 0,
392 "get the version of an object on servers\n"
393 "usage: getobjversion <fid>\n"
394 " getobjversion -i <id> -g <group>"},
397 {"==== LFSCK ====", NULL, 0, "LFSCK"},
398 {"lfsck_start", jt_lfsck_start, 0, "start LFSCK\n"
399 "usage: lfsck_start [-M | --device [MDT,OST]_device]\n"
400 " [-A | --all] [-c | --create-ostobj [on | off]]\n"
401 " [-C | --create-mdtobj [on | off]]\n"
402 " [-d | --delay-create-ostobj [on | off]]\n"
403 " [-e | --error {continue | abort}] [-h | --help]\n"
404 " [-n | --dryrun [on | off]] [-o | --orphan]\n"
405 " [-r | --reset] [-s | --speed speed_limit]\n"
406 " [-t | --type lfsck_type[,lfsck_type...]]\n"
407 " [-w | --window-size size]"},
408 {"lfsck_stop", jt_lfsck_stop, 0, "stop lfsck(s)\n"
409 "usage: lfsck_stop [-M | --device [MDT,OST]_device]\n"
410 " [-A | --all] [-h | --help]"},
411 {"lfsck_query", jt_lfsck_query, 0, "check lfsck(s) status\n"
412 "usage: lfsck_query [-M | --device MDT_device] [-h | --help]\n"
413 " [-t | --type lfsck_type[,lfsck_type...]]\n"
416 {"==== obsolete (DANGEROUS) ====", NULL, 0, "obsolete (DANGEROUS)"},
417 /* some test scripts still use these */
418 {"cfg_device", jt_obd_device, 0,
419 "set current device to <name>\n"
420 "usage: device <name>"},
421 {"recover", jt_obd_recover, 0,
422 "try to restore a lost connection immediately\n"
423 "usage: recover [MDC/OSC device]"},
424 /* saving for sanity 44a */
425 {"lov_getconfig", jt_obd_lov_getconfig, 0,
426 "read lov configuration from an mds device\n"
427 "usage: lov_getconfig <mountpoint>"},
428 /* Llog operations */
429 {"llog_catlist", jt_llog_catlist, 0,
430 "list all catalog logs on current device.\n"
431 "usage: llog_catlist"},
432 {"llog_info", jt_llog_info, 0,
433 "print log header information.\n"
434 "usage: llog_info <$logname|#oid#ogr#ogen>\n"
435 " oid, ogr and ogen are hexadecimal."},
436 {"llog_print", jt_llog_print, 0,
437 "print log content information.\n"
438 "usage: llog_print <$logname|#oid#ogr#ogen> [from] [to]\n"
439 " oid, ogr and ogen are hexadecimal.\n"
440 " print all records from index 1 by default."},
441 {"llog_check", jt_llog_check, 0,
442 "print log content information.\n"
443 "usage: llog_check <$logname|#oid#ogr#ogen> [from] [to]\n"
444 " oid, ogr and ogen are hexadecimal.\n"
445 " check all records from index 1 by default."},
446 {"llog_cancel", jt_llog_cancel, 0,
447 "cancel one record in log.\n"
448 "This command supports both positional and optional arguments\n"
449 "usage (positional args): "
450 "llog_cancel <catalog id|catalog name> [log id] <index>\n"
451 "usage (optional args): "
452 "llog_cancel --catalog <catalog id|catalog name> --log_id <log_id> "
453 "--log_idx <index>"},
454 {"llog_remove", jt_llog_remove, 0,
455 "remove one log from catalog or plain log, erase it from disk.\n"
456 "usage: llog_remove <catalog id|catalog name> <log id>"},
457 /* network operations */
458 {"add_interface", jt_ptl_add_interface, 0, "add interface entry\n"
459 "usage: add_interface ip [netmask]"},
460 {"del_interface", jt_ptl_del_interface, 0, "del interface entry\n"
461 "usage: del_interface [ip]"},
462 {"add_route", jt_ptl_add_route, 0,
463 "add an entry to the LNet routing table\n"
464 "usage: add_route <gateway> [<hops> [<priority>]]"},
465 {"del_route", jt_ptl_del_route, 0,
466 "delete route via gateway to targets from the LNet routing table\n"
467 "usage: del_route <gateway> [<target>] [<target>]"},
468 {"set_route", jt_ptl_notify_router, 0,
469 "enable/disable routes via gateway in the LNet routing table\n"
470 "usage: set_route <gateway> <up/down> [<time>]"},
475 int lctl_main(int argc, char **argv)
481 if (ptl_initialize(argc, argv) < 0)
483 if (obd_initialize(argc, argv) < 0)
485 if (dbg_initialize(argc, argv) < 0)
488 Parser_init("lctl > ", cmdlist);
491 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
493 rc = Parser_commands();
496 obd_finalize(argc, argv);
497 return rc < 0 ? -rc : rc;
500 static int lctl_list_commands(int argc, char **argv)
502 char buffer[81] = ""; /* 80 printable chars + terminating NUL */
507 while (cmd->pc_name != NULL) {
508 printf("\n%s\n", cmd->pc_name); /* Command category */
510 rc = Parser_list_commands(cmd, buffer, sizeof(buffer), NULL,
518 int main(int argc, char **argv)
520 return lctl_main(argc, argv);