retire ERROR_INVALID_ARGUMENTS and replace with ERROR_COMMAND_SYNTAX_ERROR
[openocd.git] / src / helper / command.c
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 √ėyvind 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 /*
327 If it is a non-jim command with no .usage specified,
328 log an error.
329
330 strlen(.usage) == 0 means that the command takes no
331 arguments.
332 */
333 if ((cr->jim_handler == NULL) &&
334 (cr->usage == NULL)) {
335 LOG_DEBUG("BUG: command '%s%s%s' does not have the "
336 "'.usage' field filled out",
337 parent && parent->name ? parent->name : "",
338 parent && parent->name ? " " : "",
339 cr->name);
340 }
341
342 struct command *c = calloc(1, sizeof(struct command));
343 if (NULL == c)
344 return NULL;
345
346 c->name = strdup(cr->name);
347 if (cr->help)
348 c->help = strdup(cr->help);
349 if (cr->usage)
350 c->usage = strdup(cr->usage);
351
352 if (!c->name || (cr->help && !c->help) || (cr->usage && !c->usage))
353 goto command_new_error;
354
355 c->parent = parent;
356 c->handler = cr->handler;
357 c->jim_handler = cr->jim_handler;
358 c->jim_handler_data = cr->jim_handler_data;
359 c->mode = cr->mode;
360
361 command_add_child(command_list_for_parent(cmd_ctx, parent), c);
362
363 return c;
364
365 command_new_error:
366 command_free(c);
367 return NULL;
368 }
369
370 static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
371
372 static int register_command_handler(struct command_context *cmd_ctx,
373 struct command *c)
374 {
375 Jim_Interp *interp = cmd_ctx->interp;
376 const char *ocd_name = alloc_printf("ocd_%s", c->name);
377 if (NULL == ocd_name)
378 return JIM_ERR;
379
380 LOG_DEBUG("registering '%s'...", ocd_name);
381
382 Jim_CmdProc func = c->handler ? &script_command : &command_unknown;
383 int retval = Jim_CreateCommand(interp, ocd_name, func, c, NULL);
384 free((void *)ocd_name);
385 if (JIM_OK != retval)
386 return retval;
387
388 /* we now need to add an overrideable proc */
389 const char *override_name = alloc_printf(
390 "proc %s {args} {eval ocd_bouncer %s $args}",
391 c->name, c->name);
392 if (NULL == override_name)
393 return JIM_ERR;
394
395 retval = Jim_Eval_Named(interp, override_name, 0, 0);
396 free((void *)override_name);
397
398 return retval;
399 }
400
401 struct command* register_command(struct command_context *context,
402 struct command *parent, const struct command_registration *cr)
403 {
404 if (!context || !cr->name)
405 return NULL;
406
407 const char *name = cr->name;
408 struct command **head = command_list_for_parent(context, parent);
409 struct command *c = command_find(*head, name);
410 if (NULL != c)
411 {
412 /* TODO: originally we treated attempting to register a cmd twice as an error
413 * Sometimes we need this behaviour, such as with flash banks.
414 * http://www.mail-archive.com/openocd-development@lists.berlios.de/msg11152.html */
415 LOG_DEBUG("command '%s' is already registered in '%s' context",
416 name, parent ? parent->name : "<global>");
417 return c;
418 }
419
420 c = command_new(context, parent, cr);
421 if (NULL == c)
422 return NULL;
423
424 int retval = ERROR_OK;
425 if (NULL != cr->jim_handler && NULL == parent)
426 {
427 retval = Jim_CreateCommand(context->interp, cr->name,
428 cr->jim_handler, cr->jim_handler_data, NULL);
429 }
430 else if (NULL != cr->handler || NULL != parent)
431 retval = register_command_handler(context, command_root(c));
432
433 if (ERROR_OK != retval)
434 {
435 unregister_command(context, parent, name);
436 c = NULL;
437 }
438 return c;
439 }
440
441 int register_commands(struct command_context *cmd_ctx, struct command *parent,
442 const struct command_registration *cmds)
443 {
444 int retval = ERROR_OK;
445 unsigned i;
446 for (i = 0; cmds[i].name || cmds[i].chain; i++)
447 {
448 const struct command_registration *cr = cmds + i;
449
450 struct command *c = NULL;
451 if (NULL != cr->name)
452 {
453 c = register_command(cmd_ctx, parent, cr);
454 if (NULL == c)
455 {
456 retval = ERROR_FAIL;
457 break;
458 }
459 }
460 if (NULL != cr->chain)
461 {
462 struct command *p = c ? : parent;
463 retval = register_commands(cmd_ctx, p, cr->chain);
464 if (ERROR_OK != retval)
465 break;
466 }
467 }
468 if (ERROR_OK != retval)
469 {
470 for (unsigned j = 0; j < i; j++)
471 unregister_command(cmd_ctx, parent, cmds[j].name);
472 }
473 return retval;
474 }
475
476 int unregister_all_commands(struct command_context *context,
477 struct command *parent)
478 {
479 if (context == NULL)
480 return ERROR_OK;
481
482 struct command **head = command_list_for_parent(context, parent);
483 while (NULL != *head)
484 {
485 struct command *tmp = *head;
486 *head = tmp->next;
487 command_free(tmp);
488 }
489
490 return ERROR_OK;
491 }
492
493 int unregister_command(struct command_context *context,
494 struct command *parent, const char *name)
495 {
496 if ((!context) || (!name))
497 return ERROR_COMMAND_SYNTAX_ERROR;
498
499 struct command *p = NULL;
500 struct command **head = command_list_for_parent(context, parent);
501 for (struct command *c = *head; NULL != c; p = c, c = c->next)
502 {
503 if (strcmp(name, c->name) != 0)
504 continue;
505
506 if (p)
507 p->next = c->next;
508 else
509 *head = c->next;
510
511 command_free(c);
512 return ERROR_OK;
513 }
514
515 return ERROR_OK;
516 }
517
518 void command_set_handler_data(struct command *c, void *p)
519 {
520 if (NULL != c->handler || NULL != c->jim_handler)
521 c->jim_handler_data = p;
522 for (struct command *cc = c->children; NULL != cc; cc = cc->next)
523 command_set_handler_data(cc, p);
524 }
525
526 void command_output_text(struct command_context *context, const char *data)
527 {
528 if (context && context->output_handler && data) {
529 context->output_handler(context, data);
530 }
531 }
532
533 void command_print_sameline(struct command_context *context, const char *format, ...)
534 {
535 char *string;
536
537 va_list ap;
538 va_start(ap, format);
539
540 string = alloc_vprintf(format, ap);
541 if (string != NULL)
542 {
543 /* we want this collected in the log + we also want to pick it up as a tcl return
544 * value.
545 *
546 * The latter bit isn't precisely neat, but will do for now.
547 */
548 LOG_USER_N("%s", string);
549 /* We already printed it above */
550 /* command_output_text(context, string); */
551 free(string);
552 }
553
554 va_end(ap);
555 }
556
557 void command_print(struct command_context *context, const char *format, ...)
558 {
559 char *string;
560
561 va_list ap;
562 va_start(ap, format);
563
564 string = alloc_vprintf(format, ap);
565 if (string != NULL)
566 {
567 strcat(string, "\n"); /* alloc_vprintf guaranteed the buffer to be at least one char longer */
568 /* we want this collected in the log + we also want to pick it up as a tcl return
569 * value.
570 *
571 * The latter bit isn't precisely neat, but will do for now.
572 */
573 LOG_USER_N("%s", string);
574 /* We already printed it above */
575 /* command_output_text(context, string); */
576 free(string);
577 }
578
579 va_end(ap);
580 }
581
582 static char *__command_name(struct command *c, char delim, unsigned extra)
583 {
584 char *name;
585 unsigned len = strlen(c->name);
586 if (NULL == c->parent) {
587 // allocate enough for the name, child names, and '\0'
588 name = malloc(len + extra + 1);
589 strcpy(name, c->name);
590 } else {
591 // parent's extra must include both the space and name
592 name = __command_name(c->parent, delim, 1 + len + extra);
593 char dstr[2] = { delim, 0 };
594 strcat(name, dstr);
595 strcat(name, c->name);
596 }
597 return name;
598 }
599 char *command_name(struct command *c, char delim)
600 {
601 return __command_name(c, delim, 0);
602 }
603
604 static bool command_can_run(struct command_context *cmd_ctx, struct command *c)
605 {
606 return c->mode == COMMAND_ANY || c->mode == cmd_ctx->mode;
607 }
608
609 static int run_command(struct command_context *context,
610 struct command *c, const char *words[], unsigned num_words)
611 {
612 if (!command_can_run(context, c))
613 {
614 /* Many commands may be run only before/after 'init' */
615 const char *when;
616 switch (c->mode) {
617 case COMMAND_CONFIG: when = "before"; break;
618 case COMMAND_EXEC: when = "after"; break;
619 // handle the impossible with humor; it guarantees a bug report!
620 default: when = "if Cthulhu is summoned by"; break;
621 }
622 LOG_ERROR("The '%s' command must be used %s 'init'.",
623 c->name, when);
624 return ERROR_FAIL;
625 }
626
627 struct command_invocation cmd = {
628 .ctx = context,
629 .current = c,
630 .name = c->name,
631 .argc = num_words - 1,
632 .argv = words + 1,
633 };
634 int retval = c->handler(&cmd);
635 if (retval == ERROR_COMMAND_SYNTAX_ERROR)
636 {
637 /* Print help for command */
638 char *full_name = command_name(c, ' ');
639 if (NULL != full_name) {
640 command_run_linef(context, "usage %s", full_name);
641 free(full_name);
642 } else
643 retval = -ENOMEM;
644 }
645 else if (retval == ERROR_COMMAND_CLOSE_CONNECTION)
646 {
647 /* just fall through for a shutdown request */
648 }
649 else if (retval != ERROR_OK)
650 {
651 /* we do not print out an error message because the command *should*
652 * have printed out an error
653 */
654 LOG_DEBUG("Command failed with error code %d", retval);
655 }
656
657 return retval;
658 }
659
660 int command_run_line(struct command_context *context, char *line)
661 {
662 /* all the parent commands have been registered with the interpreter
663 * so, can just evaluate the line as a script and check for
664 * results
665 */
666 /* run the line thru a script engine */
667 int retval = ERROR_FAIL;
668 int retcode;
669 /* Beware! This code needs to be reentrant. It is also possible
670 * for OpenOCD commands to be invoked directly from Tcl. This would
671 * happen when the Jim Tcl interpreter is provided by eCos for
672 * instance.
673 */
674 Jim_Interp *interp = context->interp;
675 Jim_DeleteAssocData(interp, "context");
676 retcode = Jim_SetAssocData(interp, "context", NULL, context);
677 if (retcode == JIM_OK)
678 {
679 /* associated the return value */
680 Jim_DeleteAssocData(interp, "retval");
681 retcode = Jim_SetAssocData(interp, "retval", NULL, &retval);
682 if (retcode == JIM_OK)
683 {
684 retcode = Jim_Eval_Named(interp, line, 0, 0);
685
686 Jim_DeleteAssocData(interp, "retval");
687 }
688 Jim_DeleteAssocData(interp, "context");
689 }
690 if (retcode == JIM_ERR) {
691 if (retval != ERROR_COMMAND_CLOSE_CONNECTION)
692 {
693 /* We do not print the connection closed error message */
694 Jim_MakeErrorMessage(interp);
695 LOG_USER("%s", Jim_GetString(Jim_GetResult(interp), NULL));
696 }
697 if (retval == ERROR_OK)
698 {
699 /* It wasn't a low level OpenOCD command that failed */
700 return ERROR_FAIL;
701 }
702 return retval;
703 } else if (retcode == JIM_EXIT) {
704 /* ignore. */
705 /* exit(Jim_GetExitCode(interp)); */
706 } else {
707 const char *result;
708 int reslen;
709
710 result = Jim_GetString(Jim_GetResult(interp), &reslen);
711 if (reslen > 0)
712 {
713 int i;
714 char buff[256 + 1];
715 for (i = 0; i < reslen; i += 256)
716 {
717 int chunk;
718 chunk = reslen - i;
719 if (chunk > 256)
720 chunk = 256;
721 strncpy(buff, result + i, chunk);
722 buff[chunk] = 0;
723 LOG_USER_N("%s", buff);
724 }
725 LOG_USER_N("\n");
726 }
727 retval = ERROR_OK;
728 }
729 return retval;
730 }
731
732 int command_run_linef(struct command_context *context, const char *format, ...)
733 {
734 int retval = ERROR_FAIL;
735 char *string;
736 va_list ap;
737 va_start(ap, format);
738 string = alloc_vprintf(format, ap);
739 if (string != NULL)
740 {
741 retval = command_run_line(context, string);
742 free(string);
743 }
744 va_end(ap);
745 return retval;
746 }
747
748 void command_set_output_handler(struct command_context* context,
749 command_output_handler_t output_handler, void *priv)
750 {
751 context->output_handler = output_handler;
752 context->output_handler_priv = priv;
753 }
754
755 struct command_context* copy_command_context(struct command_context* context)
756 {
757 struct command_context* copy_context = malloc(sizeof(struct command_context));
758
759 *copy_context = *context;
760
761 return copy_context;
762 }
763
764 void command_done(struct command_context *cmd_ctx)
765 {
766 if (NULL == cmd_ctx)
767 return;
768
769 free(cmd_ctx);
770 }
771
772 /* find full path to file */
773 static int jim_find(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
774 {
775 if (argc != 2)
776 return JIM_ERR;
777 const char *file = Jim_GetString(argv[1], NULL);
778 char *full_path = find_file(file);
779 if (full_path == NULL)
780 return JIM_ERR;
781 Jim_Obj *result = Jim_NewStringObj(interp, full_path, strlen(full_path));
782 free(full_path);
783
784 Jim_SetResult(interp, result);
785 return JIM_OK;
786 }
787
788 COMMAND_HANDLER(jim_echo)
789 {
790 if (CMD_ARGC == 2 && !strcmp(CMD_ARGV[0], "-n"))
791 {
792 LOG_USER_N("%s", CMD_ARGV[1]);
793 return JIM_OK;
794 }
795 if (CMD_ARGC != 1)
796 return JIM_ERR;
797 LOG_USER("%s", CMD_ARGV[0]);
798 return JIM_OK;
799 }
800
801 /* Capture progress output and return as tcl return value. If the
802 * progress output was empty, return tcl return value.
803 */
804 static int jim_capture(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
805 {
806 if (argc != 2)
807 return JIM_ERR;
808
809 struct log_capture_state *state = command_log_capture_start(interp);
810
811 /* disable polling during capture. This avoids capturing output
812 * from polling.
813 *
814 * This is necessary in order to avoid accidentially getting a non-empty
815 * string for tcl fn's.
816 */
817 bool save_poll = jtag_poll_get_enabled();
818
819 jtag_poll_set_enabled(false);
820
821 const char *str = Jim_GetString(argv[1], NULL);
822 int retcode = Jim_Eval_Named(interp, str, __THIS__FILE__, __LINE__);
823
824 jtag_poll_set_enabled(save_poll);
825
826 command_log_capture_finish(state);
827
828 return retcode;
829 }
830
831 static COMMAND_HELPER(command_help_find, struct command *head,
832 struct command **out)
833 {
834 if (0 == CMD_ARGC)
835 return ERROR_COMMAND_SYNTAX_ERROR;
836 *out = command_find(head, CMD_ARGV[0]);
837 if (NULL == *out && strncmp(CMD_ARGV[0], "ocd_", 4) == 0)
838 *out = command_find(head, CMD_ARGV[0] + 4);
839 if (NULL == *out)
840 return ERROR_COMMAND_SYNTAX_ERROR;
841 if (--CMD_ARGC == 0)
842 return ERROR_OK;
843 CMD_ARGV++;
844 return CALL_COMMAND_HANDLER(command_help_find, (*out)->children, out);
845 }
846
847 static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
848 bool show_help, const char *match);
849
850 static COMMAND_HELPER(command_help_show_list, struct command *head, unsigned n,
851 bool show_help, const char *match)
852 {
853 for (struct command *c = head; NULL != c; c = c->next)
854 CALL_COMMAND_HANDLER(command_help_show, c, n, show_help, match);
855 return ERROR_OK;
856 }
857
858 #define HELP_LINE_WIDTH(_n) (int)(76 - (2 * _n))
859
860 static void command_help_show_indent(unsigned n)
861 {
862 for (unsigned i = 0; i < n; i++)
863 LOG_USER_N(" ");
864 }
865 static void command_help_show_wrap(const char *str, unsigned n, unsigned n2)
866 {
867 const char *cp = str, *last = str;
868 while (*cp)
869 {
870 const char *next = last;
871 do {
872 cp = next;
873 do {
874 next++;
875 } while (*next != ' ' && *next != '\t' && *next != '\0');
876 } while ((next - last < HELP_LINE_WIDTH(n)) && *next != '\0');
877 if (next - last < HELP_LINE_WIDTH(n))
878 cp = next;
879 command_help_show_indent(n);
880 LOG_USER("%.*s", (int)(cp - last), last);
881 last = cp + 1;
882 n = n2;
883 }
884 }
885 static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
886 bool show_help, const char *match)
887 {
888 char *cmd_name = command_name(c, ' ');
889 if (NULL == cmd_name)
890 return -ENOMEM;
891
892 /* If the match string occurs anywhere, we print out
893 * stuff for this command. */
894 bool is_match = (strstr(cmd_name, match) != NULL) ||
895 ((c->usage != NULL) && (strstr(c->usage, match) != NULL)) ||
896 ((c->help != NULL) && (strstr(c->help, match) != NULL));
897
898 if (is_match)
899 {
900 command_help_show_indent(n);
901 LOG_USER_N("%s", cmd_name);
902 }
903 free(cmd_name);
904
905 if (is_match)
906 {
907 if (c->usage) {
908 LOG_USER_N(" ");
909 command_help_show_wrap(c->usage, 0, n + 5);
910 }
911 else
912 LOG_USER_N("\n");
913 }
914
915 if (is_match && show_help)
916 {
917 char *msg;
918
919 /* Normal commands are runtime-only; highlight exceptions */
920 if (c->mode != COMMAND_EXEC) {
921 const char *stage_msg = "";
922
923 switch (c->mode) {
924 case COMMAND_CONFIG:
925 stage_msg = " (configuration command)";
926 break;
927 case COMMAND_ANY:
928 stage_msg = " (command valid any time)";
929 break;
930 default:
931 stage_msg = " (?mode error?)";
932 break;
933 }
934 msg = alloc_printf("%s%s", c->help ? : "", stage_msg);
935 } else
936 msg = alloc_printf("%s", c->help ? : "");
937
938 if (NULL != msg)
939 {
940 command_help_show_wrap(msg, n + 3, n + 3);
941 free(msg);
942 } else
943 return -ENOMEM;
944 }
945
946 if (++n > 5) {
947 LOG_ERROR("command recursion exceeded");
948 return ERROR_FAIL;
949 }
950
951 return CALL_COMMAND_HANDLER(command_help_show_list,
952 c->children, n, show_help, match);
953 }
954 COMMAND_HANDLER(handle_help_command)
955 {
956 bool full = strcmp(CMD_NAME, "help") == 0;
957 int retval;
958 struct command *c = CMD_CTX->commands;
959 char *match = NULL;
960
961 if (CMD_ARGC == 0)
962 match = "";
963 else if (CMD_ARGC >= 1) {
964 unsigned i;
965
966 for (i = 0; i < CMD_ARGC; ++i) {
967 if (NULL != match) {
968 char *prev = match;
969
970 match = alloc_printf("%s %s", match,
971 CMD_ARGV[i]);
972 free(prev);
973 if (NULL == match) {
974 LOG_ERROR("unable to build "
975 "search string");
976 return -ENOMEM;
977 }
978 } else {
979 match = alloc_printf("%s", CMD_ARGV[i]);
980 if (NULL == match) {
981 LOG_ERROR("unable to build "
982 "search string");
983 return -ENOMEM;
984 }
985 }
986 }
987 } else
988 return ERROR_COMMAND_SYNTAX_ERROR;
989
990 retval = CALL_COMMAND_HANDLER(command_help_show_list,
991 c, 0, full, match);
992
993 if (CMD_ARGC >= 1)
994 free(match);
995 return retval;
996 }
997
998 static int command_unknown_find(unsigned argc, Jim_Obj *const *argv,
999 struct command *head, struct command **out, bool top_level)
1000 {
1001 if (0 == argc)
1002 return argc;
1003 const char *cmd_name = Jim_GetString(argv[0], NULL);
1004 struct command *c = command_find(head, cmd_name);
1005 if (NULL == c && top_level && strncmp(cmd_name, "ocd_", 4) == 0)
1006 c = command_find(head, cmd_name + 4);
1007 if (NULL == c)
1008 return argc;
1009 *out = c;
1010 return command_unknown_find(--argc, ++argv, (*out)->children, out, false);
1011 }
1012
1013
1014 static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
1015 {
1016 const char *cmd_name = Jim_GetString(argv[0], NULL);
1017 if (strcmp(cmd_name, "unknown") == 0)
1018 {
1019 if (argc == 1)
1020 return JIM_OK;
1021 argc--;
1022 argv++;
1023 }
1024 script_debug(interp, cmd_name, argc, argv);
1025
1026 struct command_context *cmd_ctx = current_command_context(interp);
1027 struct command *c = cmd_ctx->commands;
1028 int remaining = command_unknown_find(argc, argv, c, &c, true);
1029 // if nothing could be consumed, then it's really an unknown command
1030 if (remaining == argc)
1031 {
1032 const char *cmd = Jim_GetString(argv[0], NULL);
1033 LOG_ERROR("Unknown command:\n %s", cmd);
1034 return JIM_OK;
1035 }
1036
1037 bool found = true;
1038 Jim_Obj *const *start;
1039 unsigned count;
1040 if (c->handler || c->jim_handler)
1041 {
1042 // include the command name in the list
1043 count = remaining + 1;
1044 start = argv + (argc - remaining - 1);
1045 }
1046 else
1047 {
1048 c = command_find(cmd_ctx->commands, "usage");
1049 if (NULL == c)
1050 {
1051 LOG_ERROR("unknown command, but usage is missing too");
1052 return JIM_ERR;
1053 }
1054 count = argc - remaining;
1055 start = argv;
1056 found = false;
1057 }
1058 // pass the command through to the intended handler
1059 if (c->jim_handler)
1060 {
1061 interp->cmdPrivData = c->jim_handler_data;
1062 return (*c->jim_handler)(interp, count, start);
1063 }
1064
1065 return script_command_run(interp, count, start, c, found);
1066 }
1067
1068 static int jim_command_mode(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
1069 {
1070 struct command_context *cmd_ctx = current_command_context(interp);
1071 enum command_mode mode;
1072
1073 if (argc > 1)
1074 {
1075 struct command *c = cmd_ctx->commands;
1076 int remaining = command_unknown_find(argc - 1, argv + 1, c, &c, true);
1077 // if nothing could be consumed, then it's an unknown command
1078 if (remaining == argc - 1)
1079 {
1080 Jim_SetResultString(interp, "unknown", -1);
1081 return JIM_OK;
1082 }
1083 mode = c->mode;
1084 }
1085 else
1086 mode = cmd_ctx->mode;
1087
1088 const char *mode_str;
1089 switch (mode) {
1090 case COMMAND_ANY: mode_str = "any"; break;
1091 case COMMAND_CONFIG: mode_str = "config"; break;
1092 case COMMAND_EXEC: mode_str = "exec"; break;
1093 default: mode_str = "unknown"; break;
1094 }
1095 Jim_SetResultString(interp, mode_str, -1);
1096 return JIM_OK;
1097 }
1098
1099 static int jim_command_type(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
1100 {
1101 if (1 == argc)
1102 return JIM_ERR;
1103
1104 struct command_context *cmd_ctx = current_command_context(interp);
1105 struct command *c = cmd_ctx->commands;
1106 int remaining = command_unknown_find(argc - 1, argv + 1, c, &c, true);
1107 // if nothing could be consumed, then it's an unknown command
1108 if (remaining == argc - 1)
1109 {
1110 Jim_SetResultString(interp, "unknown", -1);
1111 return JIM_OK;
1112 }
1113
1114 if (c->jim_handler)
1115 Jim_SetResultString(interp, "native", -1);
1116 else if (c->handler)
1117 Jim_SetResultString(interp, "simple", -1);
1118 else
1119 Jim_SetResultString(interp, "group", -1);
1120
1121 return JIM_OK;
1122 }
1123
1124 int help_add_command(struct command_context *cmd_ctx, struct command *parent,
1125 const char *cmd_name, const char *help_text, const char *usage)
1126 {
1127 struct command **head = command_list_for_parent(cmd_ctx, parent);
1128 struct command *nc = command_find(*head, cmd_name);
1129 if (NULL == nc)
1130 {
1131 // add a new command with help text
1132 struct command_registration cr = {
1133 .name = cmd_name,
1134 .mode = COMMAND_ANY,
1135 .help = help_text,
1136 .usage = usage,
1137 };
1138 nc = register_command(cmd_ctx, parent, &cr);
1139 if (NULL == nc)
1140 {
1141 LOG_ERROR("failed to add '%s' help text", cmd_name);
1142 return ERROR_FAIL;
1143 }
1144 LOG_DEBUG("added '%s' help text", cmd_name);
1145 return ERROR_OK;
1146 }
1147 if (help_text)
1148 {
1149 bool replaced = false;
1150 if (nc->help)
1151 {
1152 free((void *)nc->help);
1153 replaced = true;
1154 }
1155 nc->help = strdup(help_text);
1156 if (replaced)
1157 LOG_INFO("replaced existing '%s' help", cmd_name);
1158 else
1159 LOG_DEBUG("added '%s' help text", cmd_name);
1160 }
1161 if (usage)
1162 {
1163 bool replaced = false;
1164 if (nc->usage)
1165 {
1166 free((void *)nc->usage);
1167 replaced = true;
1168 }
1169 nc->usage = strdup(usage);
1170 if (replaced)
1171 LOG_INFO("replaced existing '%s' usage", cmd_name);
1172 else
1173 LOG_DEBUG("added '%s' usage text", cmd_name);
1174 }
1175 return ERROR_OK;
1176 }
1177
1178 COMMAND_HANDLER(handle_help_add_command)
1179 {
1180 if (CMD_ARGC < 2)
1181 {
1182 LOG_ERROR("%s: insufficient arguments", CMD_NAME);
1183 return ERROR_COMMAND_SYNTAX_ERROR;
1184 }
1185
1186 // save help text and remove it from argument list
1187 const char *str = CMD_ARGV[--CMD_ARGC];
1188 const char *help = !strcmp(CMD_NAME, "add_help_text") ? str : NULL;
1189 const char *usage = !strcmp(CMD_NAME, "add_usage_text") ? str : NULL;
1190 if (!help && !usage)
1191 {
1192 LOG_ERROR("command name '%s' is unknown", CMD_NAME);
1193 return ERROR_COMMAND_SYNTAX_ERROR;
1194 }
1195 // likewise for the leaf command name
1196 const char *cmd_name = CMD_ARGV[--CMD_ARGC];
1197
1198 struct command *c = NULL;
1199 if (CMD_ARGC > 0)
1200 {
1201 c = CMD_CTX->commands;
1202 int retval = CALL_COMMAND_HANDLER(command_help_find, c, &c);
1203 if (ERROR_OK != retval)
1204 return retval;
1205 }
1206 return help_add_command(CMD_CTX, c, cmd_name, help, usage);
1207 }
1208
1209 /* sleep command sleeps for <n> milliseconds
1210 * this is useful in target startup scripts
1211 */
1212 COMMAND_HANDLER(handle_sleep_command)
1213 {
1214 bool busy = false;
1215 if (CMD_ARGC == 2)
1216 {
1217 if (strcmp(CMD_ARGV[1], "busy") == 0)
1218 busy = true;
1219 else
1220 return ERROR_COMMAND_SYNTAX_ERROR;
1221 }
1222 else if (CMD_ARGC < 1 || CMD_ARGC > 2)
1223 return ERROR_COMMAND_SYNTAX_ERROR;
1224
1225 unsigned long duration = 0;
1226 int retval = parse_ulong(CMD_ARGV[0], &duration);
1227 if (ERROR_OK != retval)
1228 return retval;
1229
1230 if (!busy)
1231 {
1232 long long then = timeval_ms();
1233 while (timeval_ms() - then < (long long)duration)
1234 {
1235 target_call_timer_callbacks_now();
1236 usleep(1000);
1237 }
1238 }
1239 else
1240 busy_sleep(duration);
1241
1242 return ERROR_OK;
1243 }
1244
1245 static const struct command_registration command_subcommand_handlers[] = {
1246 {
1247 .name = "mode",
1248 .mode = COMMAND_ANY,
1249 .jim_handler = jim_command_mode,
1250 .usage = "[command_name ...]",
1251 .help = "Returns the command modes allowed by a command:"
1252 "'any', 'config', or 'exec'. If no command is"
1253 "specified, returns the current command mode. "
1254 "Returns 'unknown' if an unknown command is given. "
1255 "Command can be multiple tokens.",
1256 },
1257 {
1258 .name = "type",
1259 .mode = COMMAND_ANY,
1260 .jim_handler = jim_command_type,
1261 .usage = "command_name [...]",
1262 .help = "Returns the type of built-in command:"
1263 "'native', 'simple', 'group', or 'unknown'. "
1264 "Command can be multiple tokens.",
1265 },
1266 COMMAND_REGISTRATION_DONE
1267 };
1268
1269 static const struct command_registration command_builtin_handlers[] = {
1270 {
1271 .name = "echo",
1272 .handler = jim_echo,
1273 .mode = COMMAND_ANY,
1274 .help = "Logs a message at \"user\" priority. "
1275 "Output message to stdout. "
1276 "Option \"-n\" suppresses trailing newline",
1277 .usage = "[-n] string",
1278 },
1279 {
1280 .name = "add_help_text",
1281 .handler = handle_help_add_command,
1282 .mode = COMMAND_ANY,
1283 .help = "Add new command help text; "
1284 "Command can be multiple tokens.",
1285 .usage = "command_name helptext_string",
1286 },
1287 {
1288 .name = "add_usage_text",
1289 .handler = handle_help_add_command,
1290 .mode = COMMAND_ANY,
1291 .help = "Add new command usage text; "
1292 "command can be multiple tokens.",
1293 .usage = "command_name usage_string",
1294 },
1295 {
1296 .name = "sleep",
1297 .handler = handle_sleep_command,
1298 .mode = COMMAND_ANY,
1299 .help = "Sleep for specified number of milliseconds. "
1300 "\"busy\" will busy wait instead (avoid this).",
1301 .usage = "milliseconds ['busy']",
1302 },
1303 {
1304 .name = "help",
1305 .handler = handle_help_command,
1306 .mode = COMMAND_ANY,
1307 .help = "Show full command help; "
1308 "command can be multiple tokens.",
1309 .usage = "[command_name]",
1310 },
1311 {
1312 .name = "usage",
1313 .handler = handle_help_command,
1314 .mode = COMMAND_ANY,
1315 .help = "Show basic command usage; "
1316 "command can be multiple tokens.",
1317 .usage = "[command_name]",
1318 },
1319 {
1320 .name = "command",
1321 .mode= COMMAND_ANY,
1322 .help = "core command group (introspection)",
1323 .chain = command_subcommand_handlers,
1324 },
1325 COMMAND_REGISTRATION_DONE
1326 };
1327
1328 struct command_context* command_init(const char *startup_tcl, Jim_Interp *interp)
1329 {
1330 struct command_context* context = malloc(sizeof(struct command_context));
1331 const char *HostOs;
1332
1333 context->mode = COMMAND_EXEC;
1334 context->commands = NULL;
1335 context->current_target = 0;
1336 context->output_handler = NULL;
1337 context->output_handler_priv = NULL;
1338
1339 #if !BUILD_ECOSBOARD
1340 /* Create a jim interpreter if we were not handed one */
1341 if (interp == NULL)
1342 {
1343 /* Create an interpreter */
1344 interp = Jim_CreateInterp();
1345 /* Add all the Jim core commands */
1346 Jim_RegisterCoreCommands(interp);
1347 Jim_InitStaticExtensions(interp);
1348 }
1349 #endif
1350 context->interp = interp;
1351
1352 /* Stick to lowercase for HostOS strings. */
1353 #if defined(_MSC_VER)
1354 /* WinXX - is generic, the forward
1355 * looking problem is this:
1356 *
1357 * "win32" or "win64"
1358 *
1359 * "winxx" is generic.
1360 */
1361 HostOs = "winxx";
1362 #elif defined(__linux__)
1363 HostOs = "linux";
1364 #elif defined(__APPLE__) || defined(__DARWIN__)
1365 HostOs = "darwin";
1366 #elif defined(__CYGWIN__)
1367 HostOs = "cygwin";
1368 #elif defined(__MINGW32__)
1369 HostOs = "mingw32";
1370 #elif defined(__ECOS)
1371 HostOs = "ecos";
1372 #elif defined(__FreeBSD__)
1373 HostOs = "freebsd";
1374 #else
1375 #warning "Unrecognized host OS..."
1376 HostOs = "other";
1377 #endif
1378 Jim_SetGlobalVariableStr(interp, "ocd_HOSTOS",
1379 Jim_NewStringObj(interp, HostOs , strlen(HostOs)));
1380
1381 Jim_CreateCommand(interp, "ocd_find", jim_find, NULL, NULL);
1382 Jim_CreateCommand(interp, "capture", jim_capture, NULL, NULL);
1383
1384 register_commands(context, NULL, command_builtin_handlers);
1385
1386 Jim_SetAssocData(interp, "context", NULL, context);
1387 if (Jim_Eval_Named(interp, startup_tcl, "embedded:startup.tcl",1) == JIM_ERR)
1388 {
1389 LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD)");
1390 Jim_MakeErrorMessage(interp);
1391 LOG_USER_N("%s", Jim_GetString(Jim_GetResult(interp), NULL));
1392 exit(-1);
1393 }
1394 Jim_DeleteAssocData(interp, "context");
1395
1396 return context;
1397 }
1398
1399 int command_context_mode(struct command_context *cmd_ctx, enum command_mode mode)
1400 {
1401 if (!cmd_ctx)
1402 return ERROR_COMMAND_SYNTAX_ERROR;
1403
1404 cmd_ctx->mode = mode;
1405 return ERROR_OK;
1406 }
1407
1408 void process_jim_events(struct command_context *cmd_ctx)
1409 {
1410 #if !BUILD_ECOSBOARD
1411 static int recursion = 0;
1412 if (recursion)
1413 return;
1414
1415 recursion++;
1416 Jim_ProcessEvents(cmd_ctx->interp, JIM_ALL_EVENTS | JIM_DONT_WAIT);
1417 recursion--;
1418 #endif
1419 }
1420
1421 #define DEFINE_PARSE_NUM_TYPE(name, type, func, min, max) \
1422 int parse##name(const char *str, type *ul) \
1423 { \
1424 if (!*str) \
1425 { \
1426 LOG_ERROR("Invalid command argument"); \
1427 return ERROR_COMMAND_ARGUMENT_INVALID; \
1428 } \
1429 char *end; \
1430 *ul = func(str, &end, 0); \
1431 if (*end) \
1432 { \
1433 LOG_ERROR("Invalid command argument"); \
1434 return ERROR_COMMAND_ARGUMENT_INVALID; \
1435 } \
1436 if ((max == *ul) && (ERANGE == errno)) \
1437 { \
1438 LOG_ERROR("Argument overflow"); \
1439 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
1440 } \
1441 if (min && (min == *ul) && (ERANGE == errno)) \
1442 { \
1443 LOG_ERROR("Argument underflow"); \
1444 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
1445 } \
1446 return ERROR_OK; \
1447 }
1448 DEFINE_PARSE_NUM_TYPE(_ulong, unsigned long , strtoul, 0, ULONG_MAX)
1449 DEFINE_PARSE_NUM_TYPE(_ullong, unsigned long long, strtoull, 0, ULLONG_MAX)
1450 DEFINE_PARSE_NUM_TYPE(_long, long , strtol, LONG_MIN, LONG_MAX)
1451 DEFINE_PARSE_NUM_TYPE(_llong, long long, strtoll, LLONG_MIN, LLONG_MAX)
1452
1453 #define DEFINE_PARSE_WRAPPER(name, type, min, max, functype, funcname) \
1454 int parse##name(const char *str, type *ul) \
1455 { \
1456 functype n; \
1457 int retval = parse##funcname(str, &n); \
1458 if (ERROR_OK != retval) \
1459 return retval; \
1460 if (n > max) \
1461 return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
1462 if (min) \
1463 return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
1464 *ul = n; \
1465 return ERROR_OK; \
1466 }
1467
1468 #define DEFINE_PARSE_ULONG(name, type, min, max) \
1469 DEFINE_PARSE_WRAPPER(name, type, min, max, unsigned long, _ulong)
1470 DEFINE_PARSE_ULONG(_uint, unsigned, 0, UINT_MAX)
1471 DEFINE_PARSE_ULONG(_u32, uint32_t, 0, UINT32_MAX)
1472 DEFINE_PARSE_ULONG(_u16, uint16_t, 0, UINT16_MAX)
1473 DEFINE_PARSE_ULONG(_u8, uint8_t, 0, UINT8_MAX)
1474
1475 #define DEFINE_PARSE_LONG(name, type, min, max) \
1476 DEFINE_PARSE_WRAPPER(name, type, min, max, long, _long)
1477 DEFINE_PARSE_LONG(_int, int, n < INT_MIN, INT_MAX)
1478 DEFINE_PARSE_LONG(_s32, int32_t, n < INT32_MIN, INT32_MAX)
1479 DEFINE_PARSE_LONG(_s16, int16_t, n < INT16_MIN, INT16_MAX)
1480 DEFINE_PARSE_LONG(_s8, int8_t, n < INT8_MIN, INT8_MAX)
1481
1482 static int command_parse_bool(const char *in, bool *out,
1483 const char *on, const char *off)
1484 {
1485 if (strcasecmp(in, on) == 0)
1486 *out = true;
1487 else if (strcasecmp(in, off) == 0)
1488 *out = false;
1489 else
1490 return ERROR_COMMAND_SYNTAX_ERROR;
1491 return ERROR_OK;
1492 }
1493
1494 int command_parse_bool_arg(const char *in, bool *out)
1495 {
1496 if (command_parse_bool(in, out, "on", "off") == ERROR_OK)
1497 return ERROR_OK;
1498 if (command_parse_bool(in, out, "enable", "disable") == ERROR_OK)
1499 return ERROR_OK;
1500 if (command_parse_bool(in, out, "true", "false") == ERROR_OK)
1501 return ERROR_OK;
1502 if (command_parse_bool(in, out, "yes", "no") == ERROR_OK)
1503 return ERROR_OK;
1504 if (command_parse_bool(in, out, "1", "0") == ERROR_OK)
1505 return ERROR_OK;
1506 return ERROR_COMMAND_SYNTAX_ERROR;
1507 }
1508
1509 COMMAND_HELPER(handle_command_parse_bool, bool *out, const char *label)
1510 {
1511 switch (CMD_ARGC) {
1512 case 1: {
1513 const char *in = CMD_ARGV[0];
1514 if (command_parse_bool_arg(in, out) != ERROR_OK)
1515 {
1516 LOG_ERROR("%s: argument '%s' is not valid", CMD_NAME, in);
1517 return ERROR_COMMAND_SYNTAX_ERROR;
1518 }
1519 // fall through
1520 }
1521 case 0:
1522 LOG_INFO("%s is %s", label, *out ? "enabled" : "disabled");
1523 break;
1524 default:
1525 return ERROR_COMMAND_SYNTAX_ERROR;
1526 }
1527 return ERROR_OK;
1528 }

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