git.sur5r.net Git - openocd/blob - src/helper/command.c

   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
 148                 /* end of line comment? */
 149                 if (*w == '#')
 150                         break;
 151
 152                 char * t = alloc_printf("%s %s", dbg, w);
 153                 free (dbg);
 154                 dbg = t;
 155         }
 156         LOG_DEBUG("%s", dbg);
 157         free(dbg);
 158 }
 159
 160 static void script_command_args_free(const char **words, unsigned nwords)
 161 {
 162         for (unsigned i = 0; i < nwords; i++)
 163                 free((void *)words[i]);
 164         free(words);
 165 }
 166 static const char **script_command_args_alloc(
 167                 unsigned argc, Jim_Obj *const *argv, unsigned *nwords)
 168 {
 169         const char **words = malloc(argc * sizeof(char *));
 170         if (NULL == words)
 171                 return NULL;
 172
 173         unsigned i;
 174         for (i = 0; i < argc; i++)
 175         {
 176                 int len;
 177                 const char *w = Jim_GetString(argv[i], &len);
 178                 /* a comment may end the line early */
 179                 if (*w == '#')
 180                         break;
 181
 182                 words[i] = strdup(w);
 183                 if (words[i] == NULL)
 184                 {
 185                         script_command_args_free(words, i);
 186                         return NULL;
 187                 }
 188         }
 189         *nwords = i;
 190         return words;
 191 }
 192
 193 struct command_context *current_command_context(Jim_Interp *interp)
 194 {
 195         /* grab the command context from the associated data */
 196         struct command_context *cmd_ctx = Jim_GetAssocData(interp, "context");
 197         if (NULL == cmd_ctx)
 198         {
 199                 /* Tcl can invoke commands directly instead of via command_run_line(). This would
 200                  * happen when the Jim Tcl interpreter is provided by eCos or if we are running
 201                  * commands in a startup script.
 202                  *
 203                  * A telnet or gdb server would provide a non-default command context to
 204                  * handle piping of error output, have a separate current target, etc.
 205                  */
 206                 cmd_ctx = global_cmd_ctx;
 207         }
 208         return cmd_ctx;
 209 }
 210
 211 static int script_command_run(Jim_Interp *interp,
 212                 int argc, Jim_Obj *const *argv, struct command *c, bool capture)
 213 {
 214         target_call_timer_callbacks_now();
 215         LOG_USER_N("%s", ""); /* Keep GDB connection alive*/
 216
 217         unsigned nwords;
 218         const char **words = script_command_args_alloc(argc, argv, &nwords);
 219         if (NULL == words)
 220                 return JIM_ERR;
 221
 222         struct log_capture_state *state = NULL;
 223         if (capture)
 224                 state = command_log_capture_start(interp);
 225
 226         struct command_context *cmd_ctx = current_command_context(interp);
 227         int retval = run_command(cmd_ctx, c, (const char **)words, nwords);
 228
 229         command_log_capture_finish(state);
 230
 231         script_command_args_free(words, nwords);
 232         return command_retval_set(interp, retval);
 233 }
 234
 235 static int script_command(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 236 {
 237         /* the private data is stashed in the interp structure */
 238
 239         struct command *c = interp->cmdPrivData;
 240         assert(c);
 241         script_debug(interp, c->name, argc, argv);
 242         return script_command_run(interp, argc, argv, c, true);
 243 }
 244
 245 static struct command *command_root(struct command *c)
 246 {
 247         while (NULL != c->parent)
 248                 c = c->parent;
 249         return c;
 250 }
 251
 252 /**
 253  * Find a command by name from a list of commands.
 254  * @returns Returns the named command if it exists in the list.
 255  * Returns NULL otherwise.
 256  */
 257 static struct command *command_find(struct command *head, const char *name)
 258 {
 259         for (struct command *cc = head; cc; cc = cc->next)
 260         {
 261                 if (strcmp(cc->name, name) == 0)
 262                         return cc;
 263         }
 264         return NULL;
 265 }
 266 struct command *command_find_in_context(struct command_context *cmd_ctx,
 267                 const char *name)
 268 {
 269         return command_find(cmd_ctx->commands, name);
 270 }
 271 struct command *command_find_in_parent(struct command *parent,
 272                 const char *name)
 273 {
 274         return command_find(parent->children, name);
 275 }
 276
 277 /**
 278  * Add the command into the linked list, sorted by name.
 279  * @param head Address to head of command list pointer, which may be
 280  * updated if @c c gets inserted at the beginning of the list.
 281  * @param c The command to add to the list pointed to by @c head.
 282  */
 283 static void command_add_child(struct command **head, struct command *c)
 284 {
 285         assert(head);
 286         if (NULL == *head)
 287         {
 288                 *head = c;
 289                 return;
 290         }
 291
 292         while ((*head)->next && (strcmp(c->name, (*head)->name) > 0))
 293                 head = &(*head)->next;
 294
 295         if (strcmp(c->name, (*head)->name) > 0) {
 296                 c->next = (*head)->next;
 297                 (*head)->next = c;
 298         } else {
 299                 c->next = *head;
 300                 *head = c;
 301         }
 302 }
 303
 304 static struct command **command_list_for_parent(
 305                 struct command_context *cmd_ctx, struct command *parent)
 306 {
 307         return parent ? &parent->children : &cmd_ctx->commands;
 308 }
 309
 310 static void command_free(struct command *c)
 311 {
 312         /// @todo if command has a handler, unregister its jim command!
 313
 314         while (NULL != c->children)
 315         {
 316                 struct command *tmp = c->children;
 317                 c->children = tmp->next;
 318                 command_free(tmp);
 319         }
 320
 321         if (c->name)
 322                 free(c->name);
 323         if (c->help)
 324                 free((void*)c->help);
 325         if (c->usage)
 326                 free((void*)c->usage);
 327         free(c);
 328 }
 329
 330 static struct command *command_new(struct command_context *cmd_ctx,
 331                 struct command *parent, const struct command_registration *cr)
 332 {
 333         assert(cr->name);
 334
 335         struct command *c = calloc(1, sizeof(struct command));
 336         if (NULL == c)
 337                 return NULL;
 338
 339         c->name = strdup(cr->name);
 340         if (cr->help)
 341                 c->help = strdup(cr->help);
 342         if (cr->usage)
 343                 c->usage = strdup(cr->usage);
 344
 345         if (!c->name || (cr->help && !c->help) || (cr->usage && !c->usage))
 346                 goto command_new_error;
 347
 348         c->parent = parent;
 349         c->handler = cr->handler;
 350         c->jim_handler = cr->jim_handler;
 351         c->jim_handler_data = cr->jim_handler_data;
 352         c->mode = cr->mode;
 353
 354         command_add_child(command_list_for_parent(cmd_ctx, parent), c);
 355
 356         return c;
 357
 358 command_new_error:
 359         command_free(c);
 360         return NULL;
 361 }
 362
 363 static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
 364
 365 static int register_command_handler(struct command_context *cmd_ctx,
 366                 struct command *c)
 367 {
 368         Jim_Interp *interp = cmd_ctx->interp;
 369         const char *ocd_name = alloc_printf("ocd_%s", c->name);
 370         if (NULL == ocd_name)
 371                 return JIM_ERR;
 372
 373         LOG_DEBUG("registering '%s'...", ocd_name);
 374
 375         Jim_CmdProc func = c->handler ? &script_command : &command_unknown;
 376         int retval = Jim_CreateCommand(interp, ocd_name, func, c, NULL);
 377         free((void *)ocd_name);
 378         if (JIM_OK != retval)
 379                 return retval;
 380
 381         /* we now need to add an overrideable proc */
 382         const char *override_name = alloc_printf(
 383                         "proc %s {args} {eval ocd_bouncer %s $args}",
 384                         c->name, c->name);
 385         if (NULL == override_name)
 386                 return JIM_ERR;
 387
 388         retval = Jim_Eval_Named(interp, override_name, 0, 0);
 389         free((void *)override_name);
 390
 391         return retval;
 392 }
 393
 394 struct command* register_command(struct command_context *context,
 395                 struct command *parent, const struct command_registration *cr)
 396 {
 397         if (!context || !cr->name)
 398                 return NULL;
 399
 400         const char *name = cr->name;
 401         struct command **head = command_list_for_parent(context, parent);
 402         struct command *c = command_find(*head, name);
 403         if (NULL != c)
 404         {
 405                 /* TODO: originally we treated attempting to register a cmd twice as an error
 406                  * Sometimes we need this behaviour, such as with flash banks.
 407                  * http://www.mail-archive.com/openocd-development@lists.berlios.de/msg11152.html */
 408                 LOG_DEBUG("command '%s' is already registered in '%s' context",
 409                                 name, parent ? parent->name : "<global>");
 410                 return c;
 411         }
 412
 413         c = command_new(context, parent, cr);
 414         if (NULL == c)
 415                 return NULL;
 416
 417         int retval = ERROR_OK;
 418         if (NULL != cr->jim_handler && NULL == parent)
 419         {
 420                 retval = Jim_CreateCommand(context->interp, cr->name,
 421                                 cr->jim_handler, cr->jim_handler_data, NULL);
 422         }
 423         else if (NULL != cr->handler || NULL != parent)
 424                 retval = register_command_handler(context, command_root(c));
 425
 426         if (ERROR_OK != retval)
 427         {
 428                 unregister_command(context, parent, name);
 429                 c = NULL;
 430         }
 431         return c;
 432 }
 433
 434 int register_commands(struct command_context *cmd_ctx, struct command *parent,
 435                 const struct command_registration *cmds)
 436 {
 437         int retval = ERROR_OK;
 438         unsigned i;
 439         for (i = 0; cmds[i].name || cmds[i].chain; i++)
 440         {
 441                 const struct command_registration *cr = cmds + i;
 442
 443                 struct command *c = NULL;
 444                 if (NULL != cr->name)
 445                 {
 446                         c = register_command(cmd_ctx, parent, cr);
 447                         if (NULL == c)
 448                         {
 449                                 retval = ERROR_FAIL;
 450                                 break;
 451                         }
 452                 }
 453                 if (NULL != cr->chain)
 454                 {
 455                         struct command *p = c ? : parent;
 456                         retval = register_commands(cmd_ctx, p, cr->chain);
 457                         if (ERROR_OK != retval)
 458                                 break;
 459                 }
 460         }
 461         if (ERROR_OK != retval)
 462         {
 463                 for (unsigned j = 0; j < i; j++)
 464                         unregister_command(cmd_ctx, parent, cmds[j].name);
 465         }
 466         return retval;
 467 }
 468
 469 int unregister_all_commands(struct command_context *context,
 470                 struct command *parent)
 471 {
 472         if (context == NULL)
 473                 return ERROR_OK;
 474
 475         struct command **head = command_list_for_parent(context, parent);
 476         while (NULL != *head)
 477         {
 478                 struct command *tmp = *head;
 479                 *head = tmp->next;
 480                 command_free(tmp);
 481         }
 482
 483         return ERROR_OK;
 484 }
 485
 486 int unregister_command(struct command_context *context,
 487                 struct command *parent, const char *name)
 488 {
 489         if ((!context) || (!name))
 490                 return ERROR_INVALID_ARGUMENTS;
 491
 492         struct command *p = NULL;
 493         struct command **head = command_list_for_parent(context, parent);
 494         for (struct command *c = *head; NULL != c; p = c, c = c->next)
 495         {
 496                 if (strcmp(name, c->name) != 0)
 497                         continue;
 498
 499                 if (p)
 500                         p->next = c->next;
 501                 else
 502                         *head = c->next;
 503
 504                 command_free(c);
 505                 return ERROR_OK;
 506         }
 507
 508         return ERROR_OK;
 509 }
 510
 511 void command_set_handler_data(struct command *c, void *p)
 512 {
 513         if (NULL != c->handler || NULL != c->jim_handler)
 514                 c->jim_handler_data = p;
 515         for (struct command *cc = c->children; NULL != cc; cc = cc->next)
 516                 command_set_handler_data(cc, p);
 517 }
 518
 519 void command_output_text(struct command_context *context, const char *data)
 520 {
 521         if (context && context->output_handler && data) {
 522                 context->output_handler(context, data);
 523         }
 524 }
 525
 526 void command_print_sameline(struct command_context *context, const char *format, ...)
 527 {
 528         char *string;
 529
 530         va_list ap;
 531         va_start(ap, format);
 532
 533         string = alloc_vprintf(format, ap);
 534         if (string != NULL)
 535         {
 536                 /* we want this collected in the log + we also want to pick it up as a tcl return
 537                  * value.
 538                  *
 539                  * The latter bit isn't precisely neat, but will do for now.
 540                  */
 541                 LOG_USER_N("%s", string);
 542                 /* We already printed it above */
 543                 /* command_output_text(context, string); */
 544                 free(string);
 545         }
 546
 547         va_end(ap);
 548 }
 549
 550 void command_print(struct command_context *context, const char *format, ...)
 551 {
 552         char *string;
 553
 554         va_list ap;
 555         va_start(ap, format);
 556
 557         string = alloc_vprintf(format, ap);
 558         if (string != NULL)
 559         {
 560                 strcat(string, "\n"); /* alloc_vprintf guaranteed the buffer to be at least one char longer */
 561                 /* we want this collected in the log + we also want to pick it up as a tcl return
 562                  * value.
 563                  *
 564                  * The latter bit isn't precisely neat, but will do for now.
 565                  */
 566                 LOG_USER_N("%s", string);
 567                 /* We already printed it above */
 568                 /* command_output_text(context, string); */
 569                 free(string);
 570         }
 571
 572         va_end(ap);
 573 }
 574
 575 static char *__command_name(struct command *c, char delim, unsigned extra)
 576 {
 577         char *name;
 578         unsigned len = strlen(c->name);
 579         if (NULL == c->parent) {
 580                 // allocate enough for the name, child names, and '\0'
 581                 name = malloc(len + extra + 1);
 582                 strcpy(name, c->name);
 583         } else {
 584                 // parent's extra must include both the space and name
 585                 name = __command_name(c->parent, delim, 1 + len + extra);
 586                 char dstr[2] = { delim, 0 };
 587                 strcat(name, dstr);
 588                 strcat(name, c->name);
 589         }
 590         return name;
 591 }
 592 char *command_name(struct command *c, char delim)
 593 {
 594         return __command_name(c, delim, 0);
 595 }
 596
 597 static bool command_can_run(struct command_context *cmd_ctx, struct command *c)
 598 {
 599         return c->mode == COMMAND_ANY || c->mode == cmd_ctx->mode;
 600 }
 601
 602 static int run_command(struct command_context *context,
 603                 struct command *c, const char *words[], unsigned num_words)
 604 {
 605         if (!command_can_run(context, c))
 606         {
 607                 /* Many commands may be run only before/after 'init' */
 608                 const char *when;
 609                 switch (c->mode) {
 610                 case COMMAND_CONFIG: when = "before"; break;
 611                 case COMMAND_EXEC: when = "after"; break;
 612                 // handle the impossible with humor; it guarantees a bug report!
 613                 default: when = "if Cthulhu is summoned by"; break;
 614                 }
 615                 LOG_ERROR("The '%s' command must be used %s 'init'.",
 616                                 c->name, when);
 617                 return ERROR_FAIL;
 618         }
 619
 620         struct command_invocation cmd = {
 621                         .ctx = context,
 622                         .current = c,
 623                         .name = c->name,
 624                         .argc = num_words - 1,
 625                         .argv = words + 1,
 626                 };
 627         int retval = c->handler(&cmd);
 628         if (retval == ERROR_COMMAND_SYNTAX_ERROR)
 629         {
 630                 /* Print help for command */
 631                 char *full_name = command_name(c, ' ');
 632                 if (NULL != full_name) {
 633                         command_run_linef(context, "usage %s", full_name);
 634                         free(full_name);
 635                 } else
 636                         retval = -ENOMEM;
 637         }
 638         else if (retval == ERROR_COMMAND_CLOSE_CONNECTION)
 639         {
 640                 /* just fall through for a shutdown request */
 641         }
 642         else if (retval != ERROR_OK)
 643         {
 644                 /* we do not print out an error message because the command *should*
 645                  * have printed out an error
 646                  */
 647                 LOG_DEBUG("Command failed with error code %d", retval);
 648         }
 649
 650         return retval;
 651 }
 652
 653 int command_run_line(struct command_context *context, char *line)
 654 {
 655         /* all the parent commands have been registered with the interpreter
 656          * so, can just evaluate the line as a script and check for
 657          * results
 658          */
 659         /* run the line thru a script engine */
 660         int retval = ERROR_FAIL;
 661         int retcode;
 662         /* Beware! This code needs to be reentrant. It is also possible
 663          * for OpenOCD commands to be invoked directly from Tcl. This would
 664          * happen when the Jim Tcl interpreter is provided by eCos for
 665          * instance.
 666          */
 667         Jim_Interp *interp = context->interp;
 668         Jim_DeleteAssocData(interp, "context");
 669         retcode = Jim_SetAssocData(interp, "context", NULL, context);
 670         if (retcode == JIM_OK)
 671         {
 672                 /* associated the return value */
 673                 Jim_DeleteAssocData(interp, "retval");
 674                 retcode = Jim_SetAssocData(interp, "retval", NULL, &retval);
 675                 if (retcode == JIM_OK)
 676                 {
 677                         retcode = Jim_Eval_Named(interp, line, 0, 0);
 678
 679                         Jim_DeleteAssocData(interp, "retval");
 680                 }
 681                 Jim_DeleteAssocData(interp, "context");
 682         }
 683         if (retcode == JIM_ERR) {
 684                 if (retval != ERROR_COMMAND_CLOSE_CONNECTION)
 685                 {
 686                         /* We do not print the connection closed error message */
 687                         Jim_MakeErrorMessage(interp);
 688                         LOG_USER_N("%s\n", Jim_GetString(Jim_GetResult(interp), NULL));
 689                 }
 690                 if (retval == ERROR_OK)
 691                 {
 692                         /* It wasn't a low level OpenOCD command that failed */
 693                         return ERROR_FAIL;
 694                 }
 695                 return retval;
 696         } else if (retcode == JIM_EXIT) {
 697                 /* ignore. */
 698                 /* exit(Jim_GetExitCode(interp)); */
 699         } else {
 700                 const char *result;
 701                 int reslen;
 702
 703                 result = Jim_GetString(Jim_GetResult(interp), &reslen);
 704                 if (reslen > 0)
 705                 {
 706                         int i;
 707                         char buff[256 + 1];
 708                         for (i = 0; i < reslen; i += 256)
 709                         {
 710                                 int chunk;
 711                                 chunk = reslen - i;
 712                                 if (chunk > 256)
 713                                         chunk = 256;
 714                                 strncpy(buff, result + i, chunk);
 715                                 buff[chunk] = 0;
 716                                 LOG_USER_N("%s", buff);
 717                         }
 718                         LOG_USER_N("%s", "\n");
 719                 }
 720                 retval = ERROR_OK;
 721         }
 722         return retval;
 723 }
 724
 725 int command_run_linef(struct command_context *context, const char *format, ...)
 726 {
 727         int retval = ERROR_FAIL;
 728         char *string;
 729         va_list ap;
 730         va_start(ap, format);
 731         string = alloc_vprintf(format, ap);
 732         if (string != NULL)
 733         {
 734                 retval = command_run_line(context, string);
 735         }
 736         va_end(ap);
 737         return retval;
 738 }
 739
 740 void command_set_output_handler(struct command_context* context,
 741                 command_output_handler_t output_handler, void *priv)
 742 {
 743         context->output_handler = output_handler;
 744         context->output_handler_priv = priv;
 745 }
 746
 747 struct command_context* copy_command_context(struct command_context* context)
 748 {
 749         struct command_context* copy_context = malloc(sizeof(struct command_context));
 750
 751         *copy_context = *context;
 752
 753         return copy_context;
 754 }
 755
 756 void command_done(struct command_context *cmd_ctx)
 757 {
 758         if (NULL == cmd_ctx)
 759                 return;
 760
 761         free(cmd_ctx);
 762 }
 763
 764 /* find full path to file */
 765 static int jim_find(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 766 {
 767         if (argc != 2)
 768                 return JIM_ERR;
 769         const char *file = Jim_GetString(argv[1], NULL);
 770         char *full_path = find_file(file);
 771         if (full_path == NULL)
 772                 return JIM_ERR;
 773         Jim_Obj *result = Jim_NewStringObj(interp, full_path, strlen(full_path));
 774         free(full_path);
 775
 776         Jim_SetResult(interp, result);
 777         return JIM_OK;
 778 }
 779
 780 COMMAND_HANDLER(jim_echo)
 781 {
 782         if (CMD_ARGC == 2 && !strcmp(CMD_ARGV[0], "-n"))
 783         {
 784                 LOG_USER_N("%s", CMD_ARGV[1]);
 785                 return JIM_OK;
 786         }
 787         if (CMD_ARGC != 1)
 788                 return JIM_ERR;
 789         LOG_USER("%s", CMD_ARGV[0]);
 790         return JIM_OK;
 791 }
 792
 793 /* Capture progress output and return as tcl return value. If the
 794  * progress output was empty, return tcl return value.
 795  */
 796 static int jim_capture(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 797 {
 798         if (argc != 2)
 799                 return JIM_ERR;
 800
 801         struct log_capture_state *state = command_log_capture_start(interp);
 802
 803         /* disable polling during capture. This avoids capturing output
 804          * from polling.
 805          *
 806          * This is necessary in order to avoid accidentially getting a non-empty
 807          * string for tcl fn's.
 808          */
 809         bool save_poll = jtag_poll_get_enabled();
 810
 811         jtag_poll_set_enabled(false);
 812
 813         const char *str = Jim_GetString(argv[1], NULL);
 814         int retcode = Jim_Eval_Named(interp, str, __THIS__FILE__, __LINE__);
 815
 816         jtag_poll_set_enabled(save_poll);
 817
 818         command_log_capture_finish(state);
 819
 820         return retcode;
 821 }
 822
 823 static COMMAND_HELPER(command_help_find, struct command *head,
 824                 struct command **out)
 825 {
 826         if (0 == CMD_ARGC)
 827                 return ERROR_INVALID_ARGUMENTS;
 828         *out = command_find(head, CMD_ARGV[0]);
 829         if (NULL == *out && strncmp(CMD_ARGV[0], "ocd_", 4) == 0)
 830                 *out = command_find(head, CMD_ARGV[0] + 4);
 831         if (NULL == *out)
 832                 return ERROR_INVALID_ARGUMENTS;
 833         if (--CMD_ARGC == 0)
 834                 return ERROR_OK;
 835         CMD_ARGV++;
 836         return CALL_COMMAND_HANDLER(command_help_find, (*out)->children, out);
 837 }
 838
 839 static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
 840                 bool show_help, const char *match);
 841
 842 static COMMAND_HELPER(command_help_show_list, struct command *head, unsigned n,
 843                 bool show_help, const char *match)
 844 {
 845         for (struct command *c = head; NULL != c; c = c->next)
 846                 CALL_COMMAND_HANDLER(command_help_show, c, n, show_help, match);
 847         return ERROR_OK;
 848 }
 849
 850 #define HELP_LINE_WIDTH(_n) (int)(76 - (2 * _n))
 851
 852 static void command_help_show_indent(unsigned n)
 853 {
 854         for (unsigned i = 0; i < n; i++)
 855                 LOG_USER_N("  ");
 856 }
 857 static void command_help_show_wrap(const char *str, unsigned n, unsigned n2)
 858 {
 859         const char *cp = str, *last = str;
 860         while (*cp)
 861         {
 862                 const char *next = last;
 863                 do {
 864                         cp = next;
 865                         do {
 866                                 next++;
 867                         } while (*next != ' ' && *next != '\t' && *next != '\0');
 868                 } while ((next - last < HELP_LINE_WIDTH(n)) && *next != '\0');
 869                 if (next - last < HELP_LINE_WIDTH(n))
 870                         cp = next;
 871                 command_help_show_indent(n);
 872                 LOG_USER_N("%.*s", (int)(cp - last), last);
 873                 LOG_USER_N("\n");
 874                 last = cp + 1;
 875                 n = n2;
 876         }
 877 }
 878 static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
 879                 bool show_help, const char *match)
 880 {
 881         char *cmd_name = command_name(c, ' ');
 882         if (NULL == cmd_name)
 883                 return -ENOMEM;
 884
 885         /* If the match string occurs anywhere, we print out
 886          * stuff for this command. */
 887         bool is_match = (strstr(cmd_name, match) != NULL) ||
 888         ((c->usage != NULL) && (strstr(c->usage, match) != NULL)) ||
 889         ((c->help != NULL) && (strstr(c->help, match) != NULL));
 890
 891         if (is_match)
 892         {
 893                 command_help_show_indent(n);
 894                 LOG_USER_N("%s", cmd_name);
 895         }
 896         free(cmd_name);
 897
 898         if (is_match)
 899         {
 900                 if (c->usage) {
 901                         LOG_USER_N(" ");
 902                         command_help_show_wrap(c->usage, 0, n + 5);
 903                 }
 904                 else
 905                         LOG_USER_N("\n");
 906         }
 907
 908         if (is_match && show_help)
 909         {
 910                 char *msg;
 911
 912                 /* Normal commands are runtime-only; highlight exceptions */
 913                 if (c->mode != COMMAND_EXEC) {
 914                         const char *stage_msg = "";
 915
 916                         switch (c->mode) {
 917                         case COMMAND_CONFIG:
 918                                 stage_msg = " (configuration command)";
 919                                 break;
 920                         case COMMAND_ANY:
 921                                 stage_msg = " (command valid any time)";
 922                                 break;
 923                         default:
 924                                 stage_msg = " (?mode error?)";
 925                                 break;
 926                         }
 927                         msg = alloc_printf("%s%s", c->help ? : "", stage_msg);
 928                 } else
 929                         msg = alloc_printf("%s", c->help ? : "");
 930
 931                 if (NULL != msg)
 932                 {
 933                         command_help_show_wrap(msg, n + 3, n + 3);
 934                         free(msg);
 935                 } else
 936                         return -ENOMEM;
 937         }
 938
 939         if (++n >= 2)
 940                 return ERROR_OK;
 941
 942         return CALL_COMMAND_HANDLER(command_help_show_list,
 943                         c->children, n, show_help, match);
 944 }
 945 COMMAND_HANDLER(handle_help_command)
 946 {
 947         bool full = strcmp(CMD_NAME, "help") == 0;
 948         int retval;
 949         struct command *c = CMD_CTX->commands;
 950         char *match = NULL;
 951
 952         if (CMD_ARGC == 0)
 953                 match = "";
 954         else if (CMD_ARGC >= 1) {
 955                 unsigned i;
 956
 957                 for (i = 0; i < CMD_ARGC; ++i) {
 958                         if (NULL != match) {
 959                                 char *prev = match;
 960
 961                                 match = alloc_printf("%s %s", match,
 962                                                 CMD_ARGV[i]);
 963                                 free(prev);
 964                                 if (NULL == match) {
 965                                         LOG_ERROR("unable to build "
 966                                                         "search string");
 967                                         return -ENOMEM;
 968                                 }
 969                         } else {
 970                                 match = alloc_printf("%s", CMD_ARGV[i]);
 971                                 if (NULL == match) {
 972                                         LOG_ERROR("unable to build "
 973                                                         "search string");
 974                                         return -ENOMEM;
 975                                 }
 976                         }
 977                 }
 978         } else
 979                 return ERROR_COMMAND_SYNTAX_ERROR;
 980
 981         retval = CALL_COMMAND_HANDLER(command_help_show_list,
 982                         c, 0, full, match);
 983
 984         if (CMD_ARGC >= 1)
 985                 free(match);
 986         return retval;
 987 }
 988
 989 static int command_unknown_find(unsigned argc, Jim_Obj *const *argv,
 990                 struct command *head, struct command **out, bool top_level)
 991 {
 992         if (0 == argc)
 993                 return argc;
 994         const char *cmd_name = Jim_GetString(argv[0], NULL);
 995         struct command *c = command_find(head, cmd_name);
 996         if (NULL == c && top_level && strncmp(cmd_name, "ocd_", 4) == 0)
 997                 c = command_find(head, cmd_name + 4);
 998         if (NULL == c)
 999                 return argc;
1000         *out = c;
1001         return command_unknown_find(--argc, ++argv, (*out)->children, out, false);
1002 }
1003
1004
1005 static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
1006 {
1007         const char *cmd_name = Jim_GetString(argv[0], NULL);
1008         if (strcmp(cmd_name, "unknown") == 0)
1009         {
1010                 if (argc == 1)
1011                         return JIM_OK;
1012                 argc--;
1013                 argv++;
1014         }
1015         script_debug(interp, cmd_name, argc, argv);
1016
1017         struct command_context *cmd_ctx = current_command_context(interp);
1018         struct command *c = cmd_ctx->commands;
1019         int remaining = command_unknown_find(argc, argv, c, &c, true);
1020         // if nothing could be consumed, then it's really an unknown command
1021         if (remaining == argc)
1022         {
1023                 const char *cmd = Jim_GetString(argv[0], NULL);
1024                 LOG_ERROR("Unknown command:\n  %s", cmd);
1025                 return JIM_OK;
1026         }
1027
1028         bool found = true;
1029         Jim_Obj *const *start;
1030         unsigned count;
1031         if (c->handler || c->jim_handler)
1032         {
1033                 // include the command name in the list
1034                 count = remaining + 1;
1035                 start = argv + (argc - remaining - 1);
1036         }
1037         else
1038         {
1039                 c = command_find(cmd_ctx->commands, "usage");
1040                 if (NULL == c)
1041                 {
1042                         LOG_ERROR("unknown command, but usage is missing too");
1043                         return JIM_ERR;
1044                 }
1045                 count = argc - remaining;
1046                 start = argv;
1047                 found = false;
1048         }
1049         // pass the command through to the intended handler
1050         if (c->jim_handler)
1051         {
1052                 interp->cmdPrivData = c->jim_handler_data;
1053                 return (*c->jim_handler)(interp, count, start);
1054         }
1055
1056         return script_command_run(interp, count, start, c, found);
1057 }
1058
1059 static int jim_command_mode(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
1060 {
1061         struct command_context *cmd_ctx = current_command_context(interp);
1062         enum command_mode mode;
1063
1064         if (argc > 1)
1065         {
1066                 struct command *c = cmd_ctx->commands;
1067                 int remaining = command_unknown_find(argc - 1, argv + 1, c, &c, true);
1068                 // if nothing could be consumed, then it's an unknown command
1069                 if (remaining == argc - 1)
1070                 {
1071                         Jim_SetResultString(interp, "unknown", -1);
1072                         return JIM_OK;
1073                 }
1074                 mode = c->mode;
1075         }
1076         else
1077                 mode = cmd_ctx->mode;
1078
1079         const char *mode_str;
1080         switch (mode) {
1081         case COMMAND_ANY: mode_str = "any"; break;
1082         case COMMAND_CONFIG: mode_str = "config"; break;
1083         case COMMAND_EXEC: mode_str = "exec"; break;
1084         default: mode_str = "unknown"; break;
1085         }
1086         Jim_SetResultString(interp, mode_str, -1);
1087         return JIM_OK;
1088 }
1089
1090 static int jim_command_type(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
1091 {
1092         if (1 == argc)
1093                 return JIM_ERR;
1094
1095         struct command_context *cmd_ctx = current_command_context(interp);
1096         struct command *c = cmd_ctx->commands;
1097         int remaining = command_unknown_find(argc - 1, argv + 1, c, &c, true);
1098         // if nothing could be consumed, then it's an unknown command
1099         if (remaining == argc - 1)
1100         {
1101                 Jim_SetResultString(interp, "unknown", -1);
1102                 return JIM_OK;
1103         }
1104
1105         if (c->jim_handler)
1106                 Jim_SetResultString(interp, "native", -1);
1107         else if (c->handler)
1108                 Jim_SetResultString(interp, "simple", -1);
1109         else
1110                 Jim_SetResultString(interp, "group", -1);
1111
1112         return JIM_OK;
1113 }
1114
1115 int help_add_command(struct command_context *cmd_ctx, struct command *parent,
1116                 const char *cmd_name, const char *help_text, const char *usage)
1117 {
1118         struct command **head = command_list_for_parent(cmd_ctx, parent);
1119         struct command *nc = command_find(*head, cmd_name);
1120         if (NULL == nc)
1121         {
1122                 // add a new command with help text
1123                 struct command_registration cr = {
1124                                 .name = cmd_name,
1125                                 .mode = COMMAND_ANY,
1126                                 .help = help_text,
1127                                 .usage = usage,
1128                         };
1129                 nc = register_command(cmd_ctx, parent, &cr);
1130                 if (NULL == nc)
1131                 {
1132                         LOG_ERROR("failed to add '%s' help text", cmd_name);
1133                         return ERROR_FAIL;
1134                 }
1135                 LOG_DEBUG("added '%s' help text", cmd_name);
1136                 return ERROR_OK;
1137         }
1138         if (help_text)
1139         {
1140                 bool replaced = false;
1141                 if (nc->help)
1142                 {
1143                         free((void *)nc->help);
1144                         replaced = true;
1145                 }
1146                 nc->help = strdup(help_text);
1147                 if (replaced)
1148                         LOG_INFO("replaced existing '%s' help", cmd_name);
1149                 else
1150                         LOG_DEBUG("added '%s' help text", cmd_name);
1151         }
1152         if (usage)
1153         {
1154                 bool replaced = false;
1155                 if (nc->usage)
1156                 {
1157                         free((void *)nc->usage);
1158                         replaced = true;
1159                 }
1160                 nc->usage = strdup(usage);
1161                 if (replaced)
1162                         LOG_INFO("replaced existing '%s' usage", cmd_name);
1163                 else
1164                         LOG_DEBUG("added '%s' usage text", cmd_name);
1165         }
1166         return ERROR_OK;
1167 }
1168
1169 COMMAND_HANDLER(handle_help_add_command)
1170 {
1171         if (CMD_ARGC < 2)
1172         {
1173                 LOG_ERROR("%s: insufficient arguments", CMD_NAME);
1174                 return ERROR_INVALID_ARGUMENTS;
1175         }
1176
1177         // save help text and remove it from argument list
1178         const char *str = CMD_ARGV[--CMD_ARGC];
1179         const char *help = !strcmp(CMD_NAME, "add_help_text") ? str : NULL;
1180         const char *usage = !strcmp(CMD_NAME, "add_usage_text") ? str : NULL;
1181         if (!help && !usage)
1182         {
1183                 LOG_ERROR("command name '%s' is unknown", CMD_NAME);
1184                 return ERROR_INVALID_ARGUMENTS;
1185         }
1186         // likewise for the leaf command name
1187         const char *cmd_name = CMD_ARGV[--CMD_ARGC];
1188
1189         struct command *c = NULL;
1190         if (CMD_ARGC > 0)
1191         {
1192                 c = CMD_CTX->commands;
1193                 int retval = CALL_COMMAND_HANDLER(command_help_find, c, &c);
1194                 if (ERROR_OK != retval)
1195                         return retval;
1196         }
1197         return help_add_command(CMD_CTX, c, cmd_name, help, usage);
1198 }
1199
1200 /* sleep command sleeps for <n> milliseconds
1201  * this is useful in target startup scripts
1202  */
1203 COMMAND_HANDLER(handle_sleep_command)
1204 {
1205         bool busy = false;
1206         if (CMD_ARGC == 2)
1207         {
1208                 if (strcmp(CMD_ARGV[1], "busy") == 0)
1209                         busy = true;
1210                 else
1211                         return ERROR_COMMAND_SYNTAX_ERROR;
1212         }
1213         else if (CMD_ARGC < 1 || CMD_ARGC > 2)
1214                 return ERROR_COMMAND_SYNTAX_ERROR;
1215
1216         unsigned long duration = 0;
1217         int retval = parse_ulong(CMD_ARGV[0], &duration);
1218         if (ERROR_OK != retval)
1219                 return retval;
1220
1221         if (!busy)
1222         {
1223                 long long then = timeval_ms();
1224                 while (timeval_ms() - then < (long long)duration)
1225                 {
1226                         target_call_timer_callbacks_now();
1227                         usleep(1000);
1228                 }
1229         }
1230         else
1231                 busy_sleep(duration);
1232
1233         return ERROR_OK;
1234 }
1235
1236 static const struct command_registration command_subcommand_handlers[] = {
1237         {
1238                 .name = "mode",
1239                 .mode = COMMAND_ANY,
1240                 .jim_handler = jim_command_mode,
1241                 .usage = "[command_name ...]",
1242                 .help = "Returns the command modes allowed by a  command:"
1243                         "'any', 'config', or 'exec'.  If no command is"
1244                         "specified, returns the current command mode.  "
1245                         "Returns 'unknown' if an unknown command is given. "
1246                         "Command can be multiple tokens.",
1247         },
1248         {
1249                 .name = "type",
1250                 .mode = COMMAND_ANY,
1251                 .jim_handler = jim_command_type,
1252                 .usage = "command_name [...]",
1253                 .help = "Returns the type of built-in command:"
1254                         "'native', 'simple', 'group', or 'unknown'. "
1255                         "Command can be multiple tokens.",
1256         },
1257         COMMAND_REGISTRATION_DONE
1258 };
1259
1260 static const struct command_registration command_builtin_handlers[] = {
1261         {
1262                 .name = "echo",
1263                 .handler = jim_echo,
1264                 .mode = COMMAND_ANY,
1265                 .help = "Logs a message at \"user\" priority. "
1266                         "Output message to stdout. "
1267                         "Option \"-n\" suppresses trailing newline",
1268                 .usage = "[-n] string",
1269         },
1270         {
1271                 .name = "add_help_text",
1272                 .handler = handle_help_add_command,
1273                 .mode = COMMAND_ANY,
1274                 .help = "Add new command help text; "
1275                         "Command can be multiple tokens.",
1276                 .usage = "command_name helptext_string",
1277         },
1278         {
1279                 .name = "add_usage_text",
1280                 .handler = handle_help_add_command,
1281                 .mode = COMMAND_ANY,
1282                 .help = "Add new command usage text; "
1283                         "command can be multiple tokens.",
1284                 .usage = "command_name usage_string",
1285         },
1286         {
1287                 .name = "sleep",
1288                 .handler = handle_sleep_command,
1289                 .mode = COMMAND_ANY,
1290                 .help = "Sleep for specified number of milliseconds.  "
1291                         "\"busy\" will busy wait instead (avoid this).",
1292                 .usage = "milliseconds ['busy']",
1293         },
1294         {
1295                 .name = "help",
1296                 .handler = handle_help_command,
1297                 .mode = COMMAND_ANY,
1298                 .help = "Show full command help; "
1299                         "command can be multiple tokens.",
1300                 .usage = "[command_name]",
1301         },
1302         {
1303                 .name = "usage",
1304                 .handler = handle_help_command,
1305                 .mode = COMMAND_ANY,
1306                 .help = "Show basic command usage; "
1307                         "command can be multiple tokens.",
1308                 .usage = "[command_name]",
1309         },
1310         {
1311                 .name = "command",
1312                 .mode= COMMAND_ANY,
1313                 .help = "core command group (introspection)",
1314                 .chain = command_subcommand_handlers,
1315         },
1316         COMMAND_REGISTRATION_DONE
1317 };
1318
1319 struct command_context* command_init(const char *startup_tcl, Jim_Interp *interp)
1320 {
1321         struct command_context* context = malloc(sizeof(struct command_context));
1322         const char *HostOs;
1323
1324         context->mode = COMMAND_EXEC;
1325         context->commands = NULL;
1326         context->current_target = 0;
1327         context->output_handler = NULL;
1328         context->output_handler_priv = NULL;
1329
1330 #if !BUILD_ECOSBOARD
1331         /* Create a jim interpreter if we were not handed one */
1332         if (interp == NULL)
1333         {
1334                 /* Create an interpreter */
1335                 interp = Jim_CreateInterp();
1336                 /* Add all the Jim core commands */
1337                 Jim_RegisterCoreCommands(interp);
1338                 Jim_InitStaticExtensions(interp);
1339         }
1340 #endif
1341         context->interp = interp;
1342
1343         /* Stick to lowercase for HostOS strings. */
1344 #if defined(_MSC_VER)
1345         /* WinXX - is generic, the forward
1346          * looking problem is this:
1347          *
1348          *   "win32" or "win64"
1349          *
1350          * "winxx" is generic.
1351          */
1352         HostOs = "winxx";
1353 #elif defined(__linux__)
1354         HostOs = "linux";
1355 #elif defined(__APPLE__) || defined(__DARWIN__)
1356         HostOs = "darwin";
1357 #elif defined(__CYGWIN__)
1358         HostOs = "cygwin";
1359 #elif defined(__MINGW32__)
1360         HostOs = "mingw32";
1361 #elif defined(__ECOS)
1362         HostOs = "ecos";
1363 #elif defined(__FreeBSD__)
1364         HostOs = "freebsd";
1365 #else
1366 #warning "Unrecognized host OS..."
1367         HostOs = "other";
1368 #endif
1369         Jim_SetGlobalVariableStr(interp, "ocd_HOSTOS",
1370                         Jim_NewStringObj(interp, HostOs , strlen(HostOs)));
1371
1372         Jim_CreateCommand(interp, "ocd_find", jim_find, NULL, NULL);
1373         Jim_CreateCommand(interp, "capture", jim_capture, NULL, NULL);
1374
1375         register_commands(context, NULL, command_builtin_handlers);
1376
1377         Jim_SetAssocData(interp, "context", NULL, context);
1378         if (Jim_Eval_Named(interp, startup_tcl, "embedded:startup.tcl",1) == JIM_ERR)
1379         {
1380                 LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD)");
1381                 Jim_MakeErrorMessage(interp);
1382                 LOG_USER_N("%s", Jim_GetString(Jim_GetResult(interp), NULL));
1383                 exit(-1);
1384         }
1385         Jim_DeleteAssocData(interp, "context");
1386
1387         return context;
1388 }
1389
1390 int command_context_mode(struct command_context *cmd_ctx, enum command_mode mode)
1391 {
1392         if (!cmd_ctx)
1393                 return ERROR_INVALID_ARGUMENTS;
1394
1395         cmd_ctx->mode = mode;
1396         return ERROR_OK;
1397 }
1398
1399 void process_jim_events(struct command_context *cmd_ctx)
1400 {
1401 #if !BUILD_ECOSBOARD
1402         static int recursion = 0;
1403         if (recursion)
1404                 return;
1405
1406         recursion++;
1407         Jim_ProcessEvents(cmd_ctx->interp, JIM_ALL_EVENTS | JIM_DONT_WAIT);
1408         recursion--;
1409 #endif
1410 }
1411
1412 #define DEFINE_PARSE_NUM_TYPE(name, type, func, min, max) \
1413         int parse##name(const char *str, type *ul) \
1414         { \
1415                 if (!*str) \
1416                 { \
1417                         LOG_ERROR("Invalid command argument"); \
1418                         return ERROR_COMMAND_ARGUMENT_INVALID; \
1419                 } \
1420                 char *end; \
1421                 *ul = func(str, &end, 0); \
1422                 if (*end) \
1423                 { \
1424                         LOG_ERROR("Invalid command argument"); \
1425                         return ERROR_COMMAND_ARGUMENT_INVALID; \
1426                 } \
1427                 if ((max == *ul) && (ERANGE == errno)) \
1428                 { \
1429                         LOG_ERROR("Argument overflow"); \
1430                         return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
1431                 } \
1432                 if (min && (min == *ul) && (ERANGE == errno)) \
1433                 { \
1434                         LOG_ERROR("Argument underflow"); \
1435                         return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
1436                 } \
1437                 return ERROR_OK; \
1438         }
1439 DEFINE_PARSE_NUM_TYPE(_ulong, unsigned long , strtoul, 0, ULONG_MAX)
1440 DEFINE_PARSE_NUM_TYPE(_ullong, unsigned long long, strtoull, 0, ULLONG_MAX)
1441 DEFINE_PARSE_NUM_TYPE(_long, long , strtol, LONG_MIN, LONG_MAX)
1442 DEFINE_PARSE_NUM_TYPE(_llong, long long, strtoll, LLONG_MIN, LLONG_MAX)
1443
1444 #define DEFINE_PARSE_WRAPPER(name, type, min, max, functype, funcname) \
1445         int parse##name(const char *str, type *ul) \
1446         { \
1447                 functype n; \
1448                 int retval = parse##funcname(str, &n); \
1449                 if (ERROR_OK != retval) \
1450                         return retval; \
1451                 if (n > max) \
1452                         return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
1453                 if (min) \
1454                         return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
1455                 *ul = n; \
1456                 return ERROR_OK; \
1457         }
1458
1459 #define DEFINE_PARSE_ULONG(name, type, min, max) \
1460         DEFINE_PARSE_WRAPPER(name, type, min, max, unsigned long, _ulong)
1461 DEFINE_PARSE_ULONG(_uint, unsigned, 0, UINT_MAX)
1462 DEFINE_PARSE_ULONG(_u32, uint32_t, 0, UINT32_MAX)
1463 DEFINE_PARSE_ULONG(_u16, uint16_t, 0, UINT16_MAX)
1464 DEFINE_PARSE_ULONG(_u8, uint8_t, 0, UINT8_MAX)
1465
1466 #define DEFINE_PARSE_LONG(name, type, min, max) \
1467         DEFINE_PARSE_WRAPPER(name, type, min, max, long, _long)
1468 DEFINE_PARSE_LONG(_int, int, n < INT_MIN, INT_MAX)
1469 DEFINE_PARSE_LONG(_s32, int32_t, n < INT32_MIN, INT32_MAX)
1470 DEFINE_PARSE_LONG(_s16, int16_t, n < INT16_MIN, INT16_MAX)
1471 DEFINE_PARSE_LONG(_s8, int8_t, n < INT8_MIN, INT8_MAX)
1472
1473 static int command_parse_bool(const char *in, bool *out,
1474                 const char *on, const char *off)
1475 {
1476         if (strcasecmp(in, on) == 0)
1477                 *out = true;
1478         else if (strcasecmp(in, off) == 0)
1479                 *out = false;
1480         else
1481                 return ERROR_COMMAND_SYNTAX_ERROR;
1482         return  ERROR_OK;
1483 }
1484
1485 int command_parse_bool_arg(const char *in, bool *out)
1486 {
1487         if (command_parse_bool(in, out, "on", "off") == ERROR_OK)
1488                 return ERROR_OK;
1489         if (command_parse_bool(in, out, "enable", "disable") == ERROR_OK)
1490                 return ERROR_OK;
1491         if (command_parse_bool(in, out, "true", "false") == ERROR_OK)
1492                 return ERROR_OK;
1493         if (command_parse_bool(in, out, "yes", "no") == ERROR_OK)
1494                 return ERROR_OK;
1495         if (command_parse_bool(in, out, "1", "0") == ERROR_OK)
1496                 return ERROR_OK;
1497         return ERROR_INVALID_ARGUMENTS;
1498 }
1499
1500 COMMAND_HELPER(handle_command_parse_bool, bool *out, const char *label)
1501 {
1502         switch (CMD_ARGC) {
1503         case 1: {
1504                 const char *in = CMD_ARGV[0];
1505                 if (command_parse_bool_arg(in, out) != ERROR_OK)
1506                 {
1507                         LOG_ERROR("%s: argument '%s' is not valid", CMD_NAME, in);
1508                         return ERROR_INVALID_ARGUMENTS;
1509                 }
1510                 // fall through
1511         }
1512         case 0:
1513                 LOG_INFO("%s is %s", label, *out ? "enabled" : "disabled");
1514                 break;
1515         default:
1516                 return ERROR_INVALID_ARGUMENTS;
1517         }
1518         return ERROR_OK;
1519 }