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zy1000: fix bug in ir scan handling
[openocd.git] / src / helper / command.c
blob85d9463dfc29c41f391499b9530759abf649d5d1
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 Øyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * Copyright (C) 2008, Duane Ellis *
9 * openocd@duaneeellis.com *
10 * *
11 * part of this file is taken from libcli (libcli.sourceforge.net) *
12 * Copyright (C) David Parrish (david@dparrish.com) *
13 * *
14 * This program is free software; you can redistribute it and/or modify *
15 * it under the terms of the GNU General Public License as published by *
16 * the Free Software Foundation; either version 2 of the License, or *
17 * (at your option) any later version. *
18 * *
19 * This program is distributed in the hope that it will be useful, *
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
22 * GNU General Public License for more details. *
23 * *
24 * You should have received a copy of the GNU General Public License *
25 * along with this program; if not, write to the *
26 * Free Software Foundation, Inc., *
27 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
28 ***************************************************************************/
29 #ifdef HAVE_CONFIG_H
30 #include "config.h"
31 #endif
32
33 #if !BUILD_ECOSBOARD
34 /* see Embedder-HOWTO.txt in Jim Tcl project hosted on BerliOS*/
35 #define JIM_EMBEDDED
36 #endif
37
38 // @todo the inclusion of target.h here is a layering violation
39 #include <jtag/jtag.h>
40 #include <target/target.h>
41 #include "command.h"
42 #include "configuration.h"
43 #include "log.h"
44 #include "time_support.h"
45 #include "jim-eventloop.h"
46
47
48 /* nice short description of source file */
49 #define __THIS__FILE__ "command.c"
50
51
52 static int run_command(struct command_context *context,
53 struct command *c, const char *words[], unsigned num_words);
54
55 struct log_capture_state {
56 Jim_Interp *interp;
57 Jim_Obj *output;
58 };
59
60 static void tcl_output(void *privData, const char *file, unsigned line,
61 const char *function, const char *string)
62 {
63 struct log_capture_state *state = (struct log_capture_state *)privData;
64 Jim_AppendString(state->interp, state->output, string, strlen(string));
65 }
66
67 static struct log_capture_state *command_log_capture_start(Jim_Interp *interp)
68 {
69 /* capture log output and return it. A garbage collect can
70 * happen, so we need a reference count to this object */
71 Jim_Obj *tclOutput = Jim_NewStringObj(interp, "", 0);
72 if (NULL == tclOutput)
73 return NULL;
74
75 struct log_capture_state *state = malloc(sizeof(*state));
76 if (NULL == state)
77 return NULL;
78
79 state->interp = interp;
80 Jim_IncrRefCount(tclOutput);
81 state->output = tclOutput;
82
83 log_add_callback(tcl_output, state);
84
85 return state;
86 }
87
88 /* Classic openocd commands provide progress output which we
89 * will capture and return as a Tcl return value.
90 *
91 * However, if a non-openocd command has been invoked, then it
92 * makes sense to return the tcl return value from that command.
93 *
94 * The tcl return value is empty for openocd commands that provide
95 * progress output.
96 *
97 * Therefore we set the tcl return value only if we actually
98 * captured output.
99 */
100 static void command_log_capture_finish(struct log_capture_state *state)
101 {
102 if (NULL == state)
103 return;
104
105 log_remove_callback(tcl_output, state);
106
107 int length;
108 Jim_GetString(state->output, &length);
109
110 if (length > 0)
111 {
112 Jim_SetResult(state->interp, state->output);
113 } else
114 {
115 /* No output captured, use tcl return value (which could
116 * be empty too). */
117 }
118 Jim_DecrRefCount(state->interp, state->output);
119
120 free(state);
121 }
122
123 static int command_retval_set(Jim_Interp *interp, int retval)
124 {
125 int *return_retval = Jim_GetAssocData(interp, "retval");
126 if (return_retval != NULL)
127 *return_retval = retval;
128
129 return (retval == ERROR_OK) ? JIM_OK : JIM_ERR;
130 }
131
132 extern struct command_context *global_cmd_ctx;
133
134 /* dump a single line to the log for the command.
135 * Do nothing in case we are not at debug level 3 */
136 void script_debug(Jim_Interp *interp, const char *name,
137 unsigned argc, Jim_Obj *const *argv)
138 {
139 if (debug_level < LOG_LVL_DEBUG)
140 return;
141
142 char * dbg = alloc_printf("command - %s", name);
143 for (unsigned i = 0; i < argc; i++)
144 {
145 int len;
146 const char *w = Jim_GetString(argv[i], &len);
147 char * t = alloc_printf("%s %s", dbg, w);
148 free (dbg);
149 dbg = t;
150 }
151 LOG_DEBUG("%s", dbg);
152 free(dbg);
153 }
154
155 static void script_command_args_free(const char **words, unsigned nwords)
156 {
157 for (unsigned i = 0; i < nwords; i++)
158 free((void *)words[i]);
159 free(words);
160 }
161 static const char **script_command_args_alloc(
162 unsigned argc, Jim_Obj *const *argv, unsigned *nwords)
163 {
164 const char **words = malloc(argc * sizeof(char *));
165 if (NULL == words)
166 return NULL;
167
168 unsigned i;
169 for (i = 0; i < argc; i++)
170 {
171 int len;
172 const char *w = Jim_GetString(argv[i], &len);
173 words[i] = strdup(w);
174 if (words[i] == NULL)
175 {
176 script_command_args_free(words, i);
177 return NULL;
178 }
179 }
180 *nwords = i;
181 return words;
182 }
183
184 struct command_context *current_command_context(Jim_Interp *interp)
185 {
186 /* grab the command context from the associated data */
187 struct command_context *cmd_ctx = Jim_GetAssocData(interp, "context");
188 if (NULL == cmd_ctx)
189 {
190 /* Tcl can invoke commands directly instead of via command_run_line(). This would
191 * happen when the Jim Tcl interpreter is provided by eCos or if we are running
192 * commands in a startup script.
193 *
194 * A telnet or gdb server would provide a non-default command context to
195 * handle piping of error output, have a separate current target, etc.
196 */
197 cmd_ctx = global_cmd_ctx;
198 }
199 return cmd_ctx;
200 }
201
202 static int script_command_run(Jim_Interp *interp,
203 int argc, Jim_Obj *const *argv, struct command *c, bool capture)
204 {
205 target_call_timer_callbacks_now();
206 LOG_USER_N("%s", ""); /* Keep GDB connection alive*/
207
208 unsigned nwords;
209 const char **words = script_command_args_alloc(argc, argv, &nwords);
210 if (NULL == words)
211 return JIM_ERR;
212
213 struct log_capture_state *state = NULL;
214 if (capture)
215 state = command_log_capture_start(interp);
216
217 struct command_context *cmd_ctx = current_command_context(interp);
218 int retval = run_command(cmd_ctx, c, (const char **)words, nwords);
219
220 command_log_capture_finish(state);
221
222 script_command_args_free(words, nwords);
223 return command_retval_set(interp, retval);
224 }
225
226 static int script_command(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
227 {
228 /* the private data is stashed in the interp structure */
229
230 struct command *c = interp->cmdPrivData;
231 assert(c);
232 script_debug(interp, c->name, argc, argv);
233 return script_command_run(interp, argc, argv, c, true);
234 }
235
236 static struct command *command_root(struct command *c)
237 {
238 while (NULL != c->parent)
239 c = c->parent;
240 return c;
241 }
242
243 /**
244 * Find a command by name from a list of commands.
245 * @returns Returns the named command if it exists in the list.
246 * Returns NULL otherwise.
247 */
248 static struct command *command_find(struct command *head, const char *name)
249 {
250 for (struct command *cc = head; cc; cc = cc->next)
251 {
252 if (strcmp(cc->name, name) == 0)
253 return cc;
254 }
255 return NULL;
256 }
257 struct command *command_find_in_context(struct command_context *cmd_ctx,
258 const char *name)
259 {
260 return command_find(cmd_ctx->commands, name);
261 }
262 struct command *command_find_in_parent(struct command *parent,
263 const char *name)
264 {
265 return command_find(parent->children, name);
266 }
267
268 /**
269 * Add the command into the linked list, sorted by name.
270 * @param head Address to head of command list pointer, which may be
271 * updated if @c c gets inserted at the beginning of the list.
272 * @param c The command to add to the list pointed to by @c head.
273 */
274 static void command_add_child(struct command **head, struct command *c)
275 {
276 assert(head);
277 if (NULL == *head)
278 {
279 *head = c;
280 return;
281 }
282
283 while ((*head)->next && (strcmp(c->name, (*head)->name) > 0))
284 head = &(*head)->next;
285
286 if (strcmp(c->name, (*head)->name) > 0) {
287 c->next = (*head)->next;
288 (*head)->next = c;
289 } else {
290 c->next = *head;
291 *head = c;
292 }
293 }
294
295 static struct command **command_list_for_parent(
296 struct command_context *cmd_ctx, struct command *parent)
297 {
298 return parent ? &parent->children : &cmd_ctx->commands;
299 }
300
301 static void command_free(struct command *c)
302 {
303 /// @todo if command has a handler, unregister its jim command!
304
305 while (NULL != c->children)
306 {
307 struct command *tmp = c->children;
308 c->children = tmp->next;
309 command_free(tmp);
310 }
311
312 if (c->name)
313 free((void *)c->name);
314 if (c->help)
315 free((void*)c->help);
316 if (c->usage)
317 free((void*)c->usage);
318 free(c);
319 }
320
321 static struct command *command_new(struct command_context *cmd_ctx,
322 struct command *parent, const struct command_registration *cr)
323 {
324 assert(cr->name);
325
326 struct command *c = calloc(1, sizeof(struct command));
327 if (NULL == c)
328 return NULL;
329
330 c->name = strdup(cr->name);
331 if (cr->help)
332 c->help = strdup(cr->help);
333 if (cr->usage)
334 c->usage = strdup(cr->usage);
335
336 if (!c->name || (cr->help && !c->help) || (cr->usage && !c->usage))
337 goto command_new_error;
338
339 c->parent = parent;
340 c->handler = cr->handler;
341 c->jim_handler = cr->jim_handler;
342 c->jim_handler_data = cr->jim_handler_data;
343 c->mode = cr->mode;
344
345 command_add_child(command_list_for_parent(cmd_ctx, parent), c);
346
347 return c;
348
349 command_new_error:
350 command_free(c);
351 return NULL;
352 }
353
354 static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
355
356 static int register_command_handler(struct command_context *cmd_ctx,
357 struct command *c)
358 {
359 Jim_Interp *interp = cmd_ctx->interp;
360 const char *ocd_name = alloc_printf("ocd_%s", c->name);
361 if (NULL == ocd_name)
362 return JIM_ERR;
363
364 LOG_DEBUG("registering '%s'...", ocd_name);
365
366 Jim_CmdProc func = c->handler ? &script_command : &command_unknown;
367 int retval = Jim_CreateCommand(interp, ocd_name, func, c, NULL);
368 free((void *)ocd_name);
369 if (JIM_OK != retval)
370 return retval;
371
372 /* we now need to add an overrideable proc */
373 const char *override_name = alloc_printf(
374 "proc %s {args} {eval ocd_bouncer %s $args}",
375 c->name, c->name);
376 if (NULL == override_name)
377 return JIM_ERR;
378
379 retval = Jim_Eval_Named(interp, override_name, 0, 0);
380 free((void *)override_name);
381
382 return retval;
383 }
384
385 struct command* register_command(struct command_context *context,
386 struct command *parent, const struct command_registration *cr)
387 {
388 if (!context || !cr->name)
389 return NULL;
390
391 const char *name = cr->name;
392 struct command **head = command_list_for_parent(context, parent);
393 struct command *c = command_find(*head, name);
394 if (NULL != c)
395 {
396 /* TODO: originally we treated attempting to register a cmd twice as an error
397 * Sometimes we need this behaviour, such as with flash banks.
398 * http://www.mail-archive.com/openocd-development@lists.berlios.de/msg11152.html */
399 LOG_DEBUG("command '%s' is already registered in '%s' context",
400 name, parent ? parent->name : "<global>");
401 return c;
402 }
403
404 c = command_new(context, parent, cr);
405 if (NULL == c)
406 return NULL;
407
408 int retval = ERROR_OK;
409 if (NULL != cr->jim_handler && NULL == parent)
410 {
411 retval = Jim_CreateCommand(context->interp, cr->name,
412 cr->jim_handler, cr->jim_handler_data, NULL);
413 }
414 else if (NULL != cr->handler || NULL != parent)
415 retval = register_command_handler(context, command_root(c));
416
417 if (ERROR_OK != retval)
418 {
419 unregister_command(context, parent, name);
420 c = NULL;
421 }
422 return c;
423 }
424
425 int register_commands(struct command_context *cmd_ctx, struct command *parent,
426 const struct command_registration *cmds)
427 {
428 int retval = ERROR_OK;
429 unsigned i;
430 for (i = 0; cmds[i].name || cmds[i].chain; i++)
431 {
432 const struct command_registration *cr = cmds + i;
433
434 struct command *c = NULL;
435 if (NULL != cr->name)
436 {
437 c = register_command(cmd_ctx, parent, cr);
438 if (NULL == c)
439 {
440 retval = ERROR_FAIL;
441 break;
442 }
443 }
444 if (NULL != cr->chain)
445 {
446 struct command *p = c ? : parent;
447 retval = register_commands(cmd_ctx, p, cr->chain);
448 if (ERROR_OK != retval)
449 break;
450 }
451 }
452 if (ERROR_OK != retval)
453 {
454 for (unsigned j = 0; j < i; j++)
455 unregister_command(cmd_ctx, parent, cmds[j].name);
456 }
457 return retval;
458 }
459
460 int unregister_all_commands(struct command_context *context,
461 struct command *parent)
462 {
463 if (context == NULL)
464 return ERROR_OK;
465
466 struct command **head = command_list_for_parent(context, parent);
467 while (NULL != *head)
468 {
469 struct command *tmp = *head;
470 *head = tmp->next;
471 command_free(tmp);
472 }
473
474 return ERROR_OK;
475 }
476
477 int unregister_command(struct command_context *context,
478 struct command *parent, const char *name)
479 {
480 if ((!context) || (!name))
481 return ERROR_INVALID_ARGUMENTS;
482
483 struct command *p = NULL;
484 struct command **head = command_list_for_parent(context, parent);
485 for (struct command *c = *head; NULL != c; p = c, c = c->next)
486 {
487 if (strcmp(name, c->name) != 0)
488 continue;
489
490 if (p)
491 p->next = c->next;
492 else
493 *head = c->next;
494
495 command_free(c);
496 return ERROR_OK;
497 }
498
499 return ERROR_OK;
500 }
501
502 void command_set_handler_data(struct command *c, void *p)
503 {
504 if (NULL != c->handler || NULL != c->jim_handler)
505 c->jim_handler_data = p;
506 for (struct command *cc = c->children; NULL != cc; cc = cc->next)
507 command_set_handler_data(cc, p);
508 }
509
510 void command_output_text(struct command_context *context, const char *data)
511 {
512 if (context && context->output_handler && data) {
513 context->output_handler(context, data);
514 }
515 }
516
517 void command_print_sameline(struct command_context *context, const char *format, ...)
518 {
519 char *string;
520
521 va_list ap;
522 va_start(ap, format);
523
524 string = alloc_vprintf(format, ap);
525 if (string != NULL)
526 {
527 /* we want this collected in the log + we also want to pick it up as a tcl return
528 * value.
529 *
530 * The latter bit isn't precisely neat, but will do for now.
531 */
532 LOG_USER_N("%s", string);
533 /* We already printed it above */
534 /* command_output_text(context, string); */
535 free(string);
536 }
537
538 va_end(ap);
539 }
540
541 void command_print(struct command_context *context, const char *format, ...)
542 {
543 char *string;
544
545 va_list ap;
546 va_start(ap, format);
547
548 string = alloc_vprintf(format, ap);
549 if (string != NULL)
550 {
551 strcat(string, "\n"); /* alloc_vprintf guaranteed the buffer to be at least one char longer */
552 /* we want this collected in the log + we also want to pick it up as a tcl return
553 * value.
554 *
555 * The latter bit isn't precisely neat, but will do for now.
556 */
557 LOG_USER_N("%s", string);
558 /* We already printed it above */
559 /* command_output_text(context, string); */
560 free(string);
561 }
562
563 va_end(ap);
564 }
565
566 static char *__command_name(struct command *c, char delim, unsigned extra)
567 {
568 char *name;
569 unsigned len = strlen(c->name);
570 if (NULL == c->parent) {
571 // allocate enough for the name, child names, and '\0'
572 name = malloc(len + extra + 1);
573 strcpy(name, c->name);
574 } else {
575 // parent's extra must include both the space and name
576 name = __command_name(c->parent, delim, 1 + len + extra);
577 char dstr[2] = { delim, 0 };
578 strcat(name, dstr);
579 strcat(name, c->name);
580 }
581 return name;
582 }
583 char *command_name(struct command *c, char delim)
584 {
585 return __command_name(c, delim, 0);
586 }
587
588 static bool command_can_run(struct command_context *cmd_ctx, struct command *c)
589 {
590 return c->mode == COMMAND_ANY || c->mode == cmd_ctx->mode;
591 }
592
593 static int run_command(struct command_context *context,
594 struct command *c, const char *words[], unsigned num_words)
595 {
596 if (!command_can_run(context, c))
597 {
598 /* Many commands may be run only before/after 'init' */
599 const char *when;
600 switch (c->mode) {
601 case COMMAND_CONFIG: when = "before"; break;
602 case COMMAND_EXEC: when = "after"; break;
603 // handle the impossible with humor; it guarantees a bug report!
604 default: when = "if Cthulhu is summoned by"; break;
605 }
606 LOG_ERROR("The '%s' command must be used %s 'init'.",
607 c->name, when);
608 return ERROR_FAIL;
609 }
610
611 struct command_invocation cmd = {
612 .ctx = context,
613 .current = c,
614 .name = c->name,
615 .argc = num_words - 1,
616 .argv = words + 1,
617 };
618 int retval = c->handler(&cmd);
619 if (retval == ERROR_COMMAND_SYNTAX_ERROR)
620 {
621 /* Print help for command */
622 char *full_name = command_name(c, ' ');
623 if (NULL != full_name) {
624 command_run_linef(context, "usage %s", full_name);
625 free(full_name);
626 } else
627 retval = -ENOMEM;
628 }
629 else if (retval == ERROR_COMMAND_CLOSE_CONNECTION)
630 {
631 /* just fall through for a shutdown request */
632 }
633 else if (retval != ERROR_OK)
634 {
635 /* we do not print out an error message because the command *should*
636 * have printed out an error
637 */
638 LOG_DEBUG("Command failed with error code %d", retval);
639 }
640
641 return retval;
642 }
643
644 int command_run_line(struct command_context *context, char *line)
645 {
646 /* all the parent commands have been registered with the interpreter
647 * so, can just evaluate the line as a script and check for
648 * results
649 */
650 /* run the line thru a script engine */
651 int retval = ERROR_FAIL;
652 int retcode;
653 /* Beware! This code needs to be reentrant. It is also possible
654 * for OpenOCD commands to be invoked directly from Tcl. This would
655 * happen when the Jim Tcl interpreter is provided by eCos for
656 * instance.
657 */
658 Jim_Interp *interp = context->interp;
659 Jim_DeleteAssocData(interp, "context");
660 retcode = Jim_SetAssocData(interp, "context", NULL, context);
661 if (retcode == JIM_OK)
662 {
663 /* associated the return value */
664 Jim_DeleteAssocData(interp, "retval");
665 retcode = Jim_SetAssocData(interp, "retval", NULL, &retval);
666 if (retcode == JIM_OK)
667 {
668 retcode = Jim_Eval_Named(interp, line, 0, 0);
669
670 Jim_DeleteAssocData(interp, "retval");
671 }
672 Jim_DeleteAssocData(interp, "context");
673 }
674 if (retcode == JIM_ERR) {
675 if (retval != ERROR_COMMAND_CLOSE_CONNECTION)
676 {
677 /* We do not print the connection closed error message */
678 Jim_MakeErrorMessage(interp);
679 LOG_USER("%s", Jim_GetString(Jim_GetResult(interp), NULL));
680 }
681 if (retval == ERROR_OK)
682 {
683 /* It wasn't a low level OpenOCD command that failed */
684 return ERROR_FAIL;
685 }
686 return retval;
687 } else if (retcode == JIM_EXIT) {
688 /* ignore. */
689 /* exit(Jim_GetExitCode(interp)); */
690 } else {
691 const char *result;
692 int reslen;
693
694 result = Jim_GetString(Jim_GetResult(interp), &reslen);
695 if (reslen > 0)
696 {
697 int i;
698 char buff[256 + 1];
699 for (i = 0; i < reslen; i += 256)
700 {
701 int chunk;
702 chunk = reslen - i;
703 if (chunk > 256)
704 chunk = 256;
705 strncpy(buff, result + i, chunk);
706 buff[chunk] = 0;
707 LOG_USER_N("%s", buff);
708 }
709 LOG_USER_N("\n");
710 }
711 retval = ERROR_OK;
712 }
713 return retval;
714 }
715
716 int command_run_linef(struct command_context *context, const char *format, ...)
717 {
718 int retval = ERROR_FAIL;
719 char *string;
720 va_list ap;
721 va_start(ap, format);
722 string = alloc_vprintf(format, ap);
723 if (string != NULL)
724 {
725 retval = command_run_line(context, string);
726 }
727 va_end(ap);
728 return retval;
729 }
730
731 void command_set_output_handler(struct command_context* context,
732 command_output_handler_t output_handler, void *priv)
733 {
734 context->output_handler = output_handler;
735 context->output_handler_priv = priv;
736 }
737
738 struct command_context* copy_command_context(struct command_context* context)
739 {
740 struct command_context* copy_context = malloc(sizeof(struct command_context));
741
742 *copy_context = *context;
743
744 return copy_context;
745 }
746
747 void command_done(struct command_context *cmd_ctx)
748 {
749 if (NULL == cmd_ctx)
750 return;
751
752 free(cmd_ctx);
753 }
754
755 /* find full path to file */
756 static int jim_find(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
757 {
758 if (argc != 2)
759 return JIM_ERR;
760 const char *file = Jim_GetString(argv[1], NULL);
761 char *full_path = find_file(file);
762 if (full_path == NULL)
763 return JIM_ERR;
764 Jim_Obj *result = Jim_NewStringObj(interp, full_path, strlen(full_path));
765 free(full_path);
766
767 Jim_SetResult(interp, result);
768 return JIM_OK;
769 }
770
771 COMMAND_HANDLER(jim_echo)
772 {
773 if (CMD_ARGC == 2 && !strcmp(CMD_ARGV[0], "-n"))
774 {
775 LOG_USER_N("%s", CMD_ARGV[1]);
776 return JIM_OK;
777 }
778 if (CMD_ARGC != 1)
779 return JIM_ERR;
780 LOG_USER("%s", CMD_ARGV[0]);
781 return JIM_OK;
782 }
783
784 /* Capture progress output and return as tcl return value. If the
785 * progress output was empty, return tcl return value.
786 */
787 static int jim_capture(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
788 {
789 if (argc != 2)
790 return JIM_ERR;
791
792 struct log_capture_state *state = command_log_capture_start(interp);
793
794 /* disable polling during capture. This avoids capturing output
795 * from polling.
796 *
797 * This is necessary in order to avoid accidentially getting a non-empty
798 * string for tcl fn's.
799 */
800 bool save_poll = jtag_poll_get_enabled();
801
802 jtag_poll_set_enabled(false);
803
804 const char *str = Jim_GetString(argv[1], NULL);
805 int retcode = Jim_Eval_Named(interp, str, __THIS__FILE__, __LINE__);
806
807 jtag_poll_set_enabled(save_poll);
808
809 command_log_capture_finish(state);
810
811 return retcode;
812 }
813
814 static COMMAND_HELPER(command_help_find, struct command *head,
815 struct command **out)
816 {
817 if (0 == CMD_ARGC)
818 return ERROR_INVALID_ARGUMENTS;
819 *out = command_find(head, CMD_ARGV[0]);
820 if (NULL == *out && strncmp(CMD_ARGV[0], "ocd_", 4) == 0)
821 *out = command_find(head, CMD_ARGV[0] + 4);
822 if (NULL == *out)
823 return ERROR_INVALID_ARGUMENTS;
824 if (--CMD_ARGC == 0)
825 return ERROR_OK;
826 CMD_ARGV++;
827 return CALL_COMMAND_HANDLER(command_help_find, (*out)->children, out);
828 }
829
830 static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
831 bool show_help, const char *match);
832
833 static COMMAND_HELPER(command_help_show_list, struct command *head, unsigned n,
834 bool show_help, const char *match)
835 {
836 for (struct command *c = head; NULL != c; c = c->next)
837 CALL_COMMAND_HANDLER(command_help_show, c, n, show_help, match);
838 return ERROR_OK;
839 }
840
841 #define HELP_LINE_WIDTH(_n) (int)(76 - (2 * _n))
842
843 static void command_help_show_indent(unsigned n)
844 {
845 for (unsigned i = 0; i < n; i++)
846 LOG_USER_N(" ");
847 }
848 static void command_help_show_wrap(const char *str, unsigned n, unsigned n2)
849 {
850 const char *cp = str, *last = str;
851 while (*cp)
852 {
853 const char *next = last;
854 do {
855 cp = next;
856 do {
857 next++;
858 } while (*next != ' ' && *next != '\t' && *next != '\0');
859 } while ((next - last < HELP_LINE_WIDTH(n)) && *next != '\0');
860 if (next - last < HELP_LINE_WIDTH(n))
861 cp = next;
862 command_help_show_indent(n);
863 LOG_USER("%.*s", (int)(cp - last), last);
864 last = cp + 1;
865 n = n2;
866 }
867 }
868 static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
869 bool show_help, const char *match)
870 {
871 char *cmd_name = command_name(c, ' ');
872 if (NULL == cmd_name)
873 return -ENOMEM;
874
875 /* If the match string occurs anywhere, we print out
876 * stuff for this command. */
877 bool is_match = (strstr(cmd_name, match) != NULL) ||
878 ((c->usage != NULL) && (strstr(c->usage, match) != NULL)) ||
879 ((c->help != NULL) && (strstr(c->help, match) != NULL));
880
881 if (is_match)
882 {
883 command_help_show_indent(n);
884 LOG_USER_N("%s", cmd_name);
885 }
886 free(cmd_name);
887
888 if (is_match)
889 {
890 if (c->usage) {
891 LOG_USER_N(" ");
892 command_help_show_wrap(c->usage, 0, n + 5);
893 }
894 else
895 LOG_USER_N("\n");
896 }
897
898 if (is_match && show_help)
899 {
900 char *msg;
901
902 /* Normal commands are runtime-only; highlight exceptions */
903 if (c->mode != COMMAND_EXEC) {
904 const char *stage_msg = "";
905
906 switch (c->mode) {
907 case COMMAND_CONFIG:
908 stage_msg = " (configuration command)";
909 break;
910 case COMMAND_ANY:
911 stage_msg = " (command valid any time)";
912 break;
913 default:
914 stage_msg = " (?mode error?)";
915 break;
916 }
917 msg = alloc_printf("%s%s", c->help ? : "", stage_msg);
918 } else
919 msg = alloc_printf("%s", c->help ? : "");
920
921 if (NULL != msg)
922 {
923 command_help_show_wrap(msg, n + 3, n + 3);
924 free(msg);
925 } else
926 return -ENOMEM;
927 }
928
929 if (++n >= 2)
930 return ERROR_OK;
931
932 return CALL_COMMAND_HANDLER(command_help_show_list,
933 c->children, n, show_help, match);
934 }
935 COMMAND_HANDLER(handle_help_command)
936 {
937 bool full = strcmp(CMD_NAME, "help") == 0;
938 int retval;
939 struct command *c = CMD_CTX->commands;
940 char *match = NULL;
941
942 if (CMD_ARGC == 0)
943 match = "";
944 else if (CMD_ARGC >= 1) {
945 unsigned i;
946
947 for (i = 0; i < CMD_ARGC; ++i) {
948 if (NULL != match) {
949 char *prev = match;
950
951 match = alloc_printf("%s %s", match,
952 CMD_ARGV[i]);
953 free(prev);
954 if (NULL == match) {
955 LOG_ERROR("unable to build "
956 "search string");
957 return -ENOMEM;
958 }
959 } else {
960 match = alloc_printf("%s", CMD_ARGV[i]);
961 if (NULL == match) {
962 LOG_ERROR("unable to build "
963 "search string");
964 return -ENOMEM;
965 }
966 }
967 }
968 } else
969 return ERROR_COMMAND_SYNTAX_ERROR;
970
971 retval = CALL_COMMAND_HANDLER(command_help_show_list,
972 c, 0, full, match);
973
974 if (CMD_ARGC >= 1)
975 free(match);
976 return retval;
977 }
978
979 static int command_unknown_find(unsigned argc, Jim_Obj *const *argv,
980 struct command *head, struct command **out, bool top_level)
981 {
982 if (0 == argc)
983 return argc;
984 const char *cmd_name = Jim_GetString(argv[0], NULL);
985 struct command *c = command_find(head, cmd_name);
986 if (NULL == c && top_level && strncmp(cmd_name, "ocd_", 4) == 0)
987 c = command_find(head, cmd_name + 4);
988 if (NULL == c)
989 return argc;
990 *out = c;
991 return command_unknown_find(--argc, ++argv, (*out)->children, out, false);
992 }
993
994
995 static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
996 {
997 const char *cmd_name = Jim_GetString(argv[0], NULL);
998 if (strcmp(cmd_name, "unknown") == 0)
999 {
1000 if (argc == 1)
1001 return JIM_OK;
1002 argc--;
1003 argv++;
1004 }
1005 script_debug(interp, cmd_name, argc, argv);
1006
1007 struct command_context *cmd_ctx = current_command_context(interp);
1008 struct command *c = cmd_ctx->commands;
1009 int remaining = command_unknown_find(argc, argv, c, &c, true);
1010 // if nothing could be consumed, then it's really an unknown command
1011 if (remaining == argc)
1012 {
1013 const char *cmd = Jim_GetString(argv[0], NULL);
1014 LOG_ERROR("Unknown command:\n %s", cmd);
1015 return JIM_OK;
1016 }
1017
1018 bool found = true;
1019 Jim_Obj *const *start;
1020 unsigned count;
1021 if (c->handler || c->jim_handler)
1022 {
1023 // include the command name in the list
1024 count = remaining + 1;
1025 start = argv + (argc - remaining - 1);
1026 }
1027 else
1028 {
1029 c = command_find(cmd_ctx->commands, "usage");
1030 if (NULL == c)
1031 {
1032 LOG_ERROR("unknown command, but usage is missing too");
1033 return JIM_ERR;
1034 }
1035 count = argc - remaining;
1036 start = argv;
1037 found = false;
1038 }
1039 // pass the command through to the intended handler
1040 if (c->jim_handler)
1041 {
1042 interp->cmdPrivData = c->jim_handler_data;
1043 return (*c->jim_handler)(interp, count, start);
1044 }
1045
1046 return script_command_run(interp, count, start, c, found);
1047 }
1048
1049 static int jim_command_mode(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
1050 {
1051 struct command_context *cmd_ctx = current_command_context(interp);
1052 enum command_mode mode;
1053
1054 if (argc > 1)
1055 {
1056 struct command *c = cmd_ctx->commands;
1057 int remaining = command_unknown_find(argc - 1, argv + 1, c, &c, true);
1058 // if nothing could be consumed, then it's an unknown command
1059 if (remaining == argc - 1)
1060 {
1061 Jim_SetResultString(interp, "unknown", -1);
1062 return JIM_OK;
1063 }
1064 mode = c->mode;
1065 }
1066 else
1067 mode = cmd_ctx->mode;
1068
1069 const char *mode_str;
1070 switch (mode) {
1071 case COMMAND_ANY: mode_str = "any"; break;
1072 case COMMAND_CONFIG: mode_str = "config"; break;
1073 case COMMAND_EXEC: mode_str = "exec"; break;
1074 default: mode_str = "unknown"; break;
1075 }
1076 Jim_SetResultString(interp, mode_str, -1);
1077 return JIM_OK;
1078 }
1079
1080 static int jim_command_type(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
1081 {
1082 if (1 == argc)
1083 return JIM_ERR;
1084
1085 struct command_context *cmd_ctx = current_command_context(interp);
1086 struct command *c = cmd_ctx->commands;
1087 int remaining = command_unknown_find(argc - 1, argv + 1, c, &c, true);
1088 // if nothing could be consumed, then it's an unknown command
1089 if (remaining == argc - 1)
1090 {
1091 Jim_SetResultString(interp, "unknown", -1);
1092 return JIM_OK;
1093 }
1094
1095 if (c->jim_handler)
1096 Jim_SetResultString(interp, "native", -1);
1097 else if (c->handler)
1098 Jim_SetResultString(interp, "simple", -1);
1099 else
1100 Jim_SetResultString(interp, "group", -1);
1101
1102 return JIM_OK;
1103 }
1104
1105 int help_add_command(struct command_context *cmd_ctx, struct command *parent,
1106 const char *cmd_name, const char *help_text, const char *usage)
1107 {
1108 struct command **head = command_list_for_parent(cmd_ctx, parent);
1109 struct command *nc = command_find(*head, cmd_name);
1110 if (NULL == nc)
1111 {
1112 // add a new command with help text
1113 struct command_registration cr = {
1114 .name = cmd_name,
1115 .mode = COMMAND_ANY,
1116 .help = help_text,
1117 .usage = usage,
1118 };
1119 nc = register_command(cmd_ctx, parent, &cr);
1120 if (NULL == nc)
1121 {
1122 LOG_ERROR("failed to add '%s' help text", cmd_name);
1123 return ERROR_FAIL;
1124 }
1125 LOG_DEBUG("added '%s' help text", cmd_name);
1126 return ERROR_OK;
1127 }
1128 if (help_text)
1129 {
1130 bool replaced = false;
1131 if (nc->help)
1132 {
1133 free((void *)nc->help);
1134 replaced = true;
1135 }
1136 nc->help = strdup(help_text);
1137 if (replaced)
1138 LOG_INFO("replaced existing '%s' help", cmd_name);
1139 else
1140 LOG_DEBUG("added '%s' help text", cmd_name);
1141 }
1142 if (usage)
1143 {
1144 bool replaced = false;
1145 if (nc->usage)
1146 {
1147 free((void *)nc->usage);
1148 replaced = true;
1149 }
1150 nc->usage = strdup(usage);
1151 if (replaced)
1152 LOG_INFO("replaced existing '%s' usage", cmd_name);
1153 else
1154 LOG_DEBUG("added '%s' usage text", cmd_name);
1155 }
1156 return ERROR_OK;
1157 }
1158
1159 COMMAND_HANDLER(handle_help_add_command)
1160 {
1161 if (CMD_ARGC < 2)
1162 {
1163 LOG_ERROR("%s: insufficient arguments", CMD_NAME);
1164 return ERROR_INVALID_ARGUMENTS;
1165 }
1166
1167 // save help text and remove it from argument list
1168 const char *str = CMD_ARGV[--CMD_ARGC];
1169 const char *help = !strcmp(CMD_NAME, "add_help_text") ? str : NULL;
1170 const char *usage = !strcmp(CMD_NAME, "add_usage_text") ? str : NULL;
1171 if (!help && !usage)
1172 {
1173 LOG_ERROR("command name '%s' is unknown", CMD_NAME);
1174 return ERROR_INVALID_ARGUMENTS;
1175 }
1176 // likewise for the leaf command name
1177 const char *cmd_name = CMD_ARGV[--CMD_ARGC];
1178
1179 struct command *c = NULL;
1180 if (CMD_ARGC > 0)
1181 {
1182 c = CMD_CTX->commands;
1183 int retval = CALL_COMMAND_HANDLER(command_help_find, c, &c);
1184 if (ERROR_OK != retval)
1185 return retval;
1186 }
1187 return help_add_command(CMD_CTX, c, cmd_name, help, usage);
1188 }
1189
1190 /* sleep command sleeps for <n> milliseconds
1191 * this is useful in target startup scripts
1192 */
1193 COMMAND_HANDLER(handle_sleep_command)
1194 {
1195 bool busy = false;
1196 if (CMD_ARGC == 2)
1197 {
1198 if (strcmp(CMD_ARGV[1], "busy") == 0)
1199 busy = true;
1200 else
1201 return ERROR_COMMAND_SYNTAX_ERROR;
1202 }
1203 else if (CMD_ARGC < 1 || CMD_ARGC > 2)
1204 return ERROR_COMMAND_SYNTAX_ERROR;
1205
1206 unsigned long duration = 0;
1207 int retval = parse_ulong(CMD_ARGV[0], &duration);
1208 if (ERROR_OK != retval)
1209 return retval;
1210
1211 if (!busy)
1212 {
1213 long long then = timeval_ms();
1214 while (timeval_ms() - then < (long long)duration)
1215 {
1216 target_call_timer_callbacks_now();
1217 usleep(1000);
1218 }
1219 }
1220 else
1221 busy_sleep(duration);
1222
1223 return ERROR_OK;
1224 }
1225
1226 static const struct command_registration command_subcommand_handlers[] = {
1227 {
1228 .name = "mode",
1229 .mode = COMMAND_ANY,
1230 .jim_handler = jim_command_mode,
1231 .usage = "[command_name ...]",
1232 .help = "Returns the command modes allowed by a command:"
1233 "'any', 'config', or 'exec'. If no command is"
1234 "specified, returns the current command mode. "
1235 "Returns 'unknown' if an unknown command is given. "
1236 "Command can be multiple tokens.",
1237 },
1238 {
1239 .name = "type",
1240 .mode = COMMAND_ANY,
1241 .jim_handler = jim_command_type,
1242 .usage = "command_name [...]",
1243 .help = "Returns the type of built-in command:"
1244 "'native', 'simple', 'group', or 'unknown'. "
1245 "Command can be multiple tokens.",
1246 },
1247 COMMAND_REGISTRATION_DONE
1248 };
1249
1250 static const struct command_registration command_builtin_handlers[] = {
1251 {
1252 .name = "echo",
1253 .handler = jim_echo,
1254 .mode = COMMAND_ANY,
1255 .help = "Logs a message at \"user\" priority. "
1256 "Output message to stdout. "
1257 "Option \"-n\" suppresses trailing newline",
1258 .usage = "[-n] string",
1259 },
1260 {
1261 .name = "add_help_text",
1262 .handler = handle_help_add_command,
1263 .mode = COMMAND_ANY,
1264 .help = "Add new command help text; "
1265 "Command can be multiple tokens.",
1266 .usage = "command_name helptext_string",
1267 },
1268 {
1269 .name = "add_usage_text",
1270 .handler = handle_help_add_command,
1271 .mode = COMMAND_ANY,
1272 .help = "Add new command usage text; "
1273 "command can be multiple tokens.",
1274 .usage = "command_name usage_string",
1275 },
1276 {
1277 .name = "sleep",
1278 .handler = handle_sleep_command,
1279 .mode = COMMAND_ANY,
1280 .help = "Sleep for specified number of milliseconds. "
1281 "\"busy\" will busy wait instead (avoid this).",
1282 .usage = "milliseconds ['busy']",
1283 },
1284 {
1285 .name = "help",
1286 .handler = handle_help_command,
1287 .mode = COMMAND_ANY,
1288 .help = "Show full command help; "
1289 "command can be multiple tokens.",
1290 .usage = "[command_name]",
1291 },
1292 {
1293 .name = "usage",
1294 .handler = handle_help_command,
1295 .mode = COMMAND_ANY,
1296 .help = "Show basic command usage; "
1297 "command can be multiple tokens.",
1298 .usage = "[command_name]",
1299 },
1300 {
1301 .name = "command",
1302 .mode= COMMAND_ANY,
1303 .help = "core command group (introspection)",
1304 .chain = command_subcommand_handlers,
1305 },
1306 COMMAND_REGISTRATION_DONE
1307 };
1308
1309 struct command_context* command_init(const char *startup_tcl, Jim_Interp *interp)
1310 {
1311 struct command_context* context = malloc(sizeof(struct command_context));
1312 const char *HostOs;
1313
1314 context->mode = COMMAND_EXEC;
1315 context->commands = NULL;
1316 context->current_target = 0;
1317 context->output_handler = NULL;
1318 context->output_handler_priv = NULL;
1319
1320 #if !BUILD_ECOSBOARD
1321 /* Create a jim interpreter if we were not handed one */
1322 if (interp == NULL)
1323 {
1324 /* Create an interpreter */
1325 interp = Jim_CreateInterp();
1326 /* Add all the Jim core commands */
1327 Jim_RegisterCoreCommands(interp);
1328 Jim_InitStaticExtensions(interp);
1329 }
1330 #endif
1331 context->interp = interp;
1332
1333 /* Stick to lowercase for HostOS strings. */
1334 #if defined(_MSC_VER)
1335 /* WinXX - is generic, the forward
1336 * looking problem is this:
1337 *
1338 * "win32" or "win64"
1339 *
1340 * "winxx" is generic.
1341 */
1342 HostOs = "winxx";
1343 #elif defined(__linux__)
1344 HostOs = "linux";
1345 #elif defined(__APPLE__) || defined(__DARWIN__)
1346 HostOs = "darwin";
1347 #elif defined(__CYGWIN__)
1348 HostOs = "cygwin";
1349 #elif defined(__MINGW32__)
1350 HostOs = "mingw32";
1351 #elif defined(__ECOS)
1352 HostOs = "ecos";
1353 #elif defined(__FreeBSD__)
1354 HostOs = "freebsd";
1355 #else
1356 #warning "Unrecognized host OS..."
1357 HostOs = "other";
1358 #endif
1359 Jim_SetGlobalVariableStr(interp, "ocd_HOSTOS",
1360 Jim_NewStringObj(interp, HostOs , strlen(HostOs)));
1361
1362 Jim_CreateCommand(interp, "ocd_find", jim_find, NULL, NULL);
1363 Jim_CreateCommand(interp, "capture", jim_capture, NULL, NULL);
1364
1365 register_commands(context, NULL, command_builtin_handlers);
1366
1367 Jim_SetAssocData(interp, "context", NULL, context);
1368 if (Jim_Eval_Named(interp, startup_tcl, "embedded:startup.tcl",1) == JIM_ERR)
1369 {
1370 LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD)");
1371 Jim_MakeErrorMessage(interp);
1372 LOG_USER_N("%s", Jim_GetString(Jim_GetResult(interp), NULL));
1373 exit(-1);
1374 }
1375 Jim_DeleteAssocData(interp, "context");
1376
1377 return context;
1378 }
1379
1380 int command_context_mode(struct command_context *cmd_ctx, enum command_mode mode)
1381 {
1382 if (!cmd_ctx)
1383 return ERROR_INVALID_ARGUMENTS;
1384
1385 cmd_ctx->mode = mode;
1386 return ERROR_OK;
1387 }
1388
1389 void process_jim_events(struct command_context *cmd_ctx)
1390 {
1391 #if !BUILD_ECOSBOARD
1392 static int recursion = 0;
1393 if (recursion)
1394 return;
1395
1396 recursion++;
1397 Jim_ProcessEvents(cmd_ctx->interp, JIM_ALL_EVENTS | JIM_DONT_WAIT);
1398 recursion--;
1399 #endif
1400 }
1401
1402 #define DEFINE_PARSE_NUM_TYPE(name, type, func, min, max) \
1403 int parse##name(const char *str, type *ul) \
1404 { \
1405 if (!*str) \
1406 { \
1407 LOG_ERROR("Invalid command argument"); \
1408 return ERROR_COMMAND_ARGUMENT_INVALID; \
1409 } \
1410 char *end; \
1411 *ul = func(str, &end, 0); \
1412 if (*end) \
1413 { \
1414 LOG_ERROR("Invalid command argument"); \
1415 return ERROR_COMMAND_ARGUMENT_INVALID; \
1416 } \
1417 if ((max == *ul) && (ERANGE == errno)) \
1418 { \
1419 LOG_ERROR("Argument overflow"); \
1420 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
1421 } \
1422 if (min && (min == *ul) && (ERANGE == errno)) \
1423 { \
1424 LOG_ERROR("Argument underflow"); \
1425 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
1426 } \
1427 return ERROR_OK; \
1428 }
1429 DEFINE_PARSE_NUM_TYPE(_ulong, unsigned long , strtoul, 0, ULONG_MAX)
1430 DEFINE_PARSE_NUM_TYPE(_ullong, unsigned long long, strtoull, 0, ULLONG_MAX)
1431 DEFINE_PARSE_NUM_TYPE(_long, long , strtol, LONG_MIN, LONG_MAX)
1432 DEFINE_PARSE_NUM_TYPE(_llong, long long, strtoll, LLONG_MIN, LLONG_MAX)
1433
1434 #define DEFINE_PARSE_WRAPPER(name, type, min, max, functype, funcname) \
1435 int parse##name(const char *str, type *ul) \
1436 { \
1437 functype n; \
1438 int retval = parse##funcname(str, &n); \
1439 if (ERROR_OK != retval) \
1440 return retval; \
1441 if (n > max) \
1442 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
1443 if (min) \
1444 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
1445 *ul = n; \
1446 return ERROR_OK; \
1447 }
1448
1449 #define DEFINE_PARSE_ULONG(name, type, min, max) \
1450 DEFINE_PARSE_WRAPPER(name, type, min, max, unsigned long, _ulong)
1451 DEFINE_PARSE_ULONG(_uint, unsigned, 0, UINT_MAX)
1452 DEFINE_PARSE_ULONG(_u32, uint32_t, 0, UINT32_MAX)
1453 DEFINE_PARSE_ULONG(_u16, uint16_t, 0, UINT16_MAX)
1454 DEFINE_PARSE_ULONG(_u8, uint8_t, 0, UINT8_MAX)
1455
1456 #define DEFINE_PARSE_LONG(name, type, min, max) \
1457 DEFINE_PARSE_WRAPPER(name, type, min, max, long, _long)
1458 DEFINE_PARSE_LONG(_int, int, n < INT_MIN, INT_MAX)
1459 DEFINE_PARSE_LONG(_s32, int32_t, n < INT32_MIN, INT32_MAX)
1460 DEFINE_PARSE_LONG(_s16, int16_t, n < INT16_MIN, INT16_MAX)
1461 DEFINE_PARSE_LONG(_s8, int8_t, n < INT8_MIN, INT8_MAX)
1462
1463 static int command_parse_bool(const char *in, bool *out,
1464 const char *on, const char *off)
1465 {
1466 if (strcasecmp(in, on) == 0)
1467 *out = true;
1468 else if (strcasecmp(in, off) == 0)
1469 *out = false;
1470 else
1471 return ERROR_COMMAND_SYNTAX_ERROR;
1472 return ERROR_OK;
1473 }
1474
1475 int command_parse_bool_arg(const char *in, bool *out)
1476 {
1477 if (command_parse_bool(in, out, "on", "off") == ERROR_OK)
1478 return ERROR_OK;
1479 if (command_parse_bool(in, out, "enable", "disable") == ERROR_OK)
1480 return ERROR_OK;
1481 if (command_parse_bool(in, out, "true", "false") == ERROR_OK)
1482 return ERROR_OK;
1483 if (command_parse_bool(in, out, "yes", "no") == ERROR_OK)
1484 return ERROR_OK;
1485 if (command_parse_bool(in, out, "1", "0") == ERROR_OK)
1486 return ERROR_OK;
1487 return ERROR_INVALID_ARGUMENTS;
1488 }
1489
1490 COMMAND_HELPER(handle_command_parse_bool, bool *out, const char *label)
1491 {
1492 switch (CMD_ARGC) {
1493 case 1: {
1494 const char *in = CMD_ARGV[0];
1495 if (command_parse_bool_arg(in, out) != ERROR_OK)
1496 {
1497 LOG_ERROR("%s: argument '%s' is not valid", CMD_NAME, in);
1498 return ERROR_INVALID_ARGUMENTS;
1499 }
1500 // fall through
1501 }
1502 case 0:
1503 LOG_INFO("%s is %s", label, *out ? "enabled" : "disabled");
1504 break;
1505 default:
1506 return ERROR_INVALID_ARGUMENTS;
1507 }
1508 return ERROR_OK;
1509 }
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