Make NetBSD a recognized system
[fw/openocd] / src / helper / command.c
index 288ed72af49dc81a49e59c251ae885bb61a2b807..bb04fb6a0708562b4e70b53be6a1620199fe4d36 100644 (file)
  *   Free Software Foundation, Inc.,                                       *
  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  ***************************************************************************/
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
-#if !BUILD_ECOSBOARD
-/* see Embedder-HOWTO.txt in Jim Tcl project hosted on BerliOS*/
+/* see Embedded-HOWTO.txt in Jim Tcl project hosted on BerliOS*/
 #define JIM_EMBEDDED
-#endif
 
-// @todo the inclusion of target.h here is a layering violation
+/* @todo the inclusion of target.h here is a layering violation */
+#include <jtag/jtag.h>
 #include <target/target.h>
 #include "command.h"
 #include "configuration.h"
 #include "time_support.h"
 #include "jim-eventloop.h"
 
-
 /* nice short description of source file */
 #define __THIS__FILE__ "command.c"
 
-
 static int run_command(struct command_context *context,
                struct command *c, const char *words[], unsigned num_words);
 
@@ -57,7 +55,7 @@ struct log_capture_state {
 };
 
 static void tcl_output(void *privData, const char *file, unsigned line,
-               const char *function, const char *string)
+       const char *function, const char *string)
 {
        struct log_capture_state *state = (struct log_capture_state *)privData;
        Jim_AppendString(state->interp, state->output, string, strlen(string));
@@ -84,6 +82,18 @@ static struct log_capture_state *command_log_capture_start(Jim_Interp *interp)
        return state;
 }
 
+/* Classic openocd commands provide progress output which we
+ * will capture and return as a Tcl return value.
+ *
+ * However, if a non-openocd command has been invoked, then it
+ * makes sense to return the tcl return value from that command.
+ *
+ * The tcl return value is empty for openocd commands that provide
+ * progress output.
+ *
+ * Therefore we set the tcl return value only if we actually
+ * captured output.
+ */
 static void command_log_capture_finish(struct log_capture_state *state)
 {
        if (NULL == state)
@@ -91,7 +101,15 @@ static void command_log_capture_finish(struct log_capture_state *state)
 
        log_remove_callback(tcl_output, state);
 
-       Jim_SetResult(state->interp, state->output);
+       int length;
+       Jim_GetString(state->output, &length);
+
+       if (length > 0)
+               Jim_SetResult(state->interp, state->output);
+       else {
+               /* No output captured, use tcl return value (which could
+                * be empty too). */
+       }
        Jim_DecrRefCount(state->interp, state->output);
 
        free(state);
@@ -108,21 +126,24 @@ static int command_retval_set(Jim_Interp *interp, int retval)
 
 extern struct command_context *global_cmd_ctx;
 
+/* dump a single line to the log for the command.
+ * Do nothing in case we are not at debug level 3 */
 void script_debug(Jim_Interp *interp, const char *name,
-               unsigned argc, Jim_Obj *const *argv)
+       unsigned argc, Jim_Obj * const *argv)
 {
-       LOG_DEBUG("command - %s", name);
-       for (unsigned i = 0; i < argc; i++)
-       {
+       if (debug_level < LOG_LVL_DEBUG)
+               return;
+
+       char *dbg = alloc_printf("command - %s", name);
+       for (unsigned i = 0; i < argc; i++) {
                int len;
                const char *w = Jim_GetString(argv[i], &len);
-
-               /* end of line comment? */
-               if (*w == '#')
-                       break;
-
-               LOG_DEBUG("%s - argv[%d]=%s", name, i, w);
+               char *t = alloc_printf("%s %s", dbg, w);
+               free(dbg);
+               dbg = t;
        }
+       LOG_DEBUG("%s", dbg);
+       free(dbg);
 }
 
 static void script_command_args_free(const char **words, unsigned nwords)
@@ -131,25 +152,20 @@ static void script_command_args_free(const char **words, unsigned nwords)
                free((void *)words[i]);
        free(words);
 }
+
 static const char **script_command_args_alloc(
-               unsigned argc, Jim_Obj *const *argv, unsigned *nwords)
+       unsigned argc, Jim_Obj * const *argv, unsigned *nwords)
 {
        const char **words = malloc(argc * sizeof(char *));
        if (NULL == words)
                return NULL;
 
        unsigned i;
-       for (i = 0; i < argc; i++)
-       {
+       for (i = 0; i < argc; i++) {
                int len;
                const char *w = Jim_GetString(argv[i], &len);
-               /* a comment may end the line early */
-               if (*w == '#')
-                       break;
-
                words[i] = strdup(w);
-               if (words[i] == NULL)
-               {
+               if (words[i] == NULL) {
                        script_command_args_free(words, i);
                        return NULL;
                }
@@ -158,14 +174,17 @@ static const char **script_command_args_alloc(
        return words;
 }
 
-static struct command_context *current_command_context(Jim_Interp *interp)
+struct command_context *current_command_context(Jim_Interp *interp)
 {
        /* grab the command context from the associated data */
        struct command_context *cmd_ctx = Jim_GetAssocData(interp, "context");
-       if (NULL == cmd_ctx)
-       {
+       if (NULL == cmd_ctx) {
                /* Tcl can invoke commands directly instead of via command_run_line(). This would
-                * happen when the Jim Tcl interpreter is provided by eCos.
+                * happen when the Jim Tcl interpreter is provided by eCos or if we are running
+                * commands in a startup script.
+                *
+                * A telnet or gdb server would provide a non-default command context to
+                * handle piping of error output, have a separate current target, etc.
                 */
                cmd_ctx = global_cmd_ctx;
        }
@@ -173,10 +192,10 @@ static struct command_context *current_command_context(Jim_Interp *interp)
 }
 
 static int script_command_run(Jim_Interp *interp,
-               int argc, Jim_Obj *const *argv, struct command *c, bool capture)
+       int argc, Jim_Obj * const *argv, struct command *c, bool capture)
 {
        target_call_timer_callbacks_now();
-       LOG_USER_N("%s", ""); /* Keep GDB connection alive*/
+       LOG_USER_N("%s", "");   /* Keep GDB connection alive*/
 
        unsigned nwords;
        const char **words = script_command_args_alloc(argc, argv, &nwords);
@@ -220,20 +239,20 @@ static struct command *command_root(struct command *c)
  */
 static struct command *command_find(struct command *head, const char *name)
 {
-       for (struct command *cc = head; cc; cc = cc->next)
-       {
+       for (struct command *cc = head; cc; cc = cc->next) {
                if (strcmp(cc->name, name) == 0)
                        return cc;
        }
        return NULL;
 }
+
 struct command *command_find_in_context(struct command_context *cmd_ctx,
-               const char *name)
+       const char *name)
 {
        return command_find(cmd_ctx->commands, name);
 }
 struct command *command_find_in_parent(struct command *parent,
-               const char *name)
+       const char *name)
 {
        return command_find(parent->children, name);
 }
@@ -247,8 +266,7 @@ struct command *command_find_in_parent(struct command *parent,
 static void command_add_child(struct command **head, struct command *c)
 {
        assert(head);
-       if (NULL == *head)
-       {
+       if (NULL == *head) {
                *head = c;
                return;
        }
@@ -266,36 +284,50 @@ static void command_add_child(struct command **head, struct command *c)
 }
 
 static struct command **command_list_for_parent(
-               struct command_context *cmd_ctx, struct command *parent)
+       struct command_context *cmd_ctx, struct command *parent)
 {
        return parent ? &parent->children : &cmd_ctx->commands;
 }
 
 static void command_free(struct command *c)
 {
-       /// @todo if command has a handler, unregister its jim command!
+       /** @todo if command has a handler, unregister its jim command! */
 
-       while (NULL != c->children)
-       {
+       while (NULL != c->children) {
                struct command *tmp = c->children;
                c->children = tmp->next;
                command_free(tmp);
        }
 
        if (c->name)
-               free(c->name);
+               free((void *)c->name);
        if (c->help)
-               free((void*)c->help);
+               free((void *)c->help);
        if (c->usage)
-               free((void*)c->usage);
+               free((void *)c->usage);
        free(c);
 }
 
 static struct command *command_new(struct command_context *cmd_ctx,
-               struct command *parent, const struct command_registration *cr)
+       struct command *parent, const struct command_registration *cr)
 {
        assert(cr->name);
 
+       /*
+        * If it is a non-jim command with no .usage specified,
+        * log an error.
+        *
+        * strlen(.usage) == 0 means that the command takes no
+        * arguments.
+       */
+       if ((cr->jim_handler == NULL) && (cr->usage == NULL)) {
+               LOG_DEBUG("BUG: command '%s%s%s' does not have the "
+                       "'.usage' field filled out",
+                       parent && parent->name ? parent->name : "",
+                       parent && parent->name ? " " : "",
+                       cr->name);
+       }
+
        struct command *c = calloc(1, sizeof(struct command));
        if (NULL == c)
                return NULL;
@@ -327,7 +359,7 @@ command_new_error:
 static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
 
 static int register_command_handler(struct command_context *cmd_ctx,
-               struct command *c)
+       struct command *c)
 {
        Jim_Interp *interp = cmd_ctx->interp;
        const char *ocd_name = alloc_printf("ocd_%s", c->name);
@@ -349,14 +381,14 @@ static int register_command_handler(struct command_context *cmd_ctx,
        if (NULL == override_name)
                return JIM_ERR;
 
-       retval = Jim_Eval_Named(interp, override_name, __FILE__, __LINE__);
+       retval = Jim_Eval_Named(interp, override_name, 0, 0);
        free((void *)override_name);
 
        return retval;
 }
 
-struct commandregister_command(struct command_context *context,
-               struct command *parent, const struct command_registration *cr)
+struct command *register_command(struct command_context *context,
+       struct command *parent, const struct command_registration *cr)
 {
        if (!context || !cr->name)
                return NULL;
@@ -364,10 +396,12 @@ struct command* register_command(struct command_context *context,
        const char *name = cr->name;
        struct command **head = command_list_for_parent(context, parent);
        struct command *c = command_find(*head, name);
-       if (NULL != c)
-       {
-               LOG_ERROR("command '%s' is already registered in '%s' context",
-                               name, parent ? parent->name : "<global>");
+       if (NULL != c) {
+               /* TODO: originally we treated attempting to register a cmd twice as an error
+                * Sometimes we need this behaviour, such as with flash banks.
+                * http://www.mail-archive.com/openocd-development@lists.berlios.de/msg11152.html */
+               LOG_DEBUG("command '%s' is already registered in '%s' context",
+                       name, parent ? parent->name : "<global>");
                return c;
        }
 
@@ -376,16 +410,13 @@ struct command* register_command(struct command_context *context,
                return NULL;
 
        int retval = ERROR_OK;
-       if (NULL != cr->jim_handler && NULL == parent)
-       {
+       if (NULL != cr->jim_handler && NULL == parent) {
                retval = Jim_CreateCommand(context->interp, cr->name,
                                cr->jim_handler, cr->jim_handler_data, NULL);
-       }
-       else if (NULL != cr->handler || NULL != parent)
+       } else if (NULL != cr->handler || NULL != parent)
                retval = register_command_handler(context, command_root(c));
 
-       if (ERROR_OK != retval)
-       {
+       if (ERROR_OK != retval) {
                unregister_command(context, parent, name);
                c = NULL;
        }
@@ -393,34 +424,29 @@ struct command* register_command(struct command_context *context,
 }
 
 int register_commands(struct command_context *cmd_ctx, struct command *parent,
-               const struct command_registration *cmds)
+       const struct command_registration *cmds)
 {
        int retval = ERROR_OK;
        unsigned i;
-       for (i = 0; cmds[i].name || cmds[i].chain; i++)
-       {
+       for (i = 0; cmds[i].name || cmds[i].chain; i++) {
                const struct command_registration *cr = cmds + i;
 
                struct command *c = NULL;
-               if (NULL != cr->name)
-               {
+               if (NULL != cr->name) {
                        c = register_command(cmd_ctx, parent, cr);
-                       if (NULL == c)
-                       {
+                       if (NULL == c) {
                                retval = ERROR_FAIL;
                                break;
                        }
                }
-               if (NULL != cr->chain)
-               {
+               if (NULL != cr->chain) {
                        struct command *p = c ? : parent;
                        retval = register_commands(cmd_ctx, p, cr->chain);
                        if (ERROR_OK != retval)
                                break;
                }
        }
-       if (ERROR_OK != retval)
-       {
+       if (ERROR_OK != retval) {
                for (unsigned j = 0; j < i; j++)
                        unregister_command(cmd_ctx, parent, cmds[j].name);
        }
@@ -428,14 +454,13 @@ int register_commands(struct command_context *cmd_ctx, struct command *parent,
 }
 
 int unregister_all_commands(struct command_context *context,
-               struct command *parent)
+       struct command *parent)
 {
        if (context == NULL)
                return ERROR_OK;
 
        struct command **head = command_list_for_parent(context, parent);
-       while (NULL != *head)
-       {
+       while (NULL != *head) {
                struct command *tmp = *head;
                *head = tmp->next;
                command_free(tmp);
@@ -445,15 +470,14 @@ int unregister_all_commands(struct command_context *context,
 }
 
 int unregister_command(struct command_context *context,
-               struct command *parent, const char *name)
+       struct command *parent, const char *name)
 {
        if ((!context) || (!name))
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
 
        struct command *p = NULL;
        struct command **head = command_list_for_parent(context, parent);
-       for (struct command *c = *head; NULL != c; p = c, c = c->next)
-       {
+       for (struct command *c = *head; NULL != c; p = c, c = c->next) {
                if (strcmp(name, c->name) != 0)
                        continue;
 
@@ -479,9 +503,8 @@ void command_set_handler_data(struct command *c, void *p)
 
 void command_output_text(struct command_context *context, const char *data)
 {
-       if (context && context->output_handler && data) {
+       if (context && context->output_handler && data)
                context->output_handler(context, data);
-       }
 }
 
 void command_print_sameline(struct command_context *context, const char *format, ...)
@@ -492,16 +515,15 @@ void command_print_sameline(struct command_context *context, const char *format,
        va_start(ap, format);
 
        string = alloc_vprintf(format, ap);
-       if (string != NULL)
-       {
+       if (string != NULL) {
                /* we want this collected in the log + we also want to pick it up as a tcl return
                 * value.
                 *
                 * The latter bit isn't precisely neat, but will do for now.
                 */
                LOG_USER_N("%s", string);
-               /* We already printed it above */
-               /* command_output_text(context, string); */
+               /* We already printed it above
+                * command_output_text(context, string); */
                free(string);
        }
 
@@ -516,17 +538,17 @@ void command_print(struct command_context *context, const char *format, ...)
        va_start(ap, format);
 
        string = alloc_vprintf(format, ap);
-       if (string != NULL)
-       {
-               strcat(string, "\n"); /* alloc_vprintf guaranteed the buffer to be at least one char longer */
+       if (string != NULL) {
+               strcat(string, "\n");   /* alloc_vprintf guaranteed the buffer to be at least one
+                                        *char longer */
                /* we want this collected in the log + we also want to pick it up as a tcl return
                 * value.
                 *
                 * The latter bit isn't precisely neat, but will do for now.
                 */
                LOG_USER_N("%s", string);
-               /* We already printed it above */
-               /* command_output_text(context, string); */
+               /* We already printed it above
+                * command_output_text(context, string); */
                free(string);
        }
 
@@ -538,11 +560,11 @@ static char *__command_name(struct command *c, char delim, unsigned extra)
        char *name;
        unsigned len = strlen(c->name);
        if (NULL == c->parent) {
-               // allocate enough for the name, child names, and '\0'
+               /* allocate enough for the name, child names, and '\0' */
                name = malloc(len + extra + 1);
                strcpy(name, c->name);
        } else {
-               // parent's extra must include both the space and name
+               /* parent's extra must include both the space and name */
                name = __command_name(c->parent, delim, 1 + len + extra);
                char dstr[2] = { delim, 0 };
                strcat(name, dstr);
@@ -550,6 +572,7 @@ static char *__command_name(struct command *c, char delim, unsigned extra)
        }
        return name;
 }
+
 char *command_name(struct command *c, char delim)
 {
        return __command_name(c, delim, 0);
@@ -561,33 +584,37 @@ static bool command_can_run(struct command_context *cmd_ctx, struct command *c)
 }
 
 static int run_command(struct command_context *context,
-               struct command *c, const char *words[], unsigned num_words)
+       struct command *c, const char *words[], unsigned num_words)
 {
-       if (!command_can_run(context, c))
-       {
+       if (!command_can_run(context, c)) {
                /* Many commands may be run only before/after 'init' */
                const char *when;
                switch (c->mode) {
-               case COMMAND_CONFIG: when = "before"; break;
-               case COMMAND_EXEC: when = "after"; break;
-               // handle the impossible with humor; it guarantees a bug report!
-               default: when = "if Cthulhu is summoned by"; break;
+                       case COMMAND_CONFIG:
+                               when = "before";
+                               break;
+                       case COMMAND_EXEC:
+                               when = "after";
+                               break;
+                       /* handle the impossible with humor; it guarantees a bug report! */
+                       default:
+                               when = "if Cthulhu is summoned by";
+                               break;
                }
                LOG_ERROR("The '%s' command must be used %s 'init'.",
-                               c->name, when);
+                       c->name, when);
                return ERROR_FAIL;
        }
 
        struct command_invocation cmd = {
-                       .ctx = context,
-                       .current = c,
-                       .name = c->name,
-                       .argc = num_words - 1,
-                       .argv = words + 1,
-               };
+               .ctx = context,
+               .current = c,
+               .name = c->name,
+               .argc = num_words - 1,
+               .argv = words + 1,
+       };
        int retval = c->handler(&cmd);
-       if (retval == ERROR_COMMAND_SYNTAX_ERROR)
-       {
+       if (retval == ERROR_COMMAND_SYNTAX_ERROR) {
                /* Print help for command */
                char *full_name = command_name(c, ' ');
                if (NULL != full_name) {
@@ -595,13 +622,9 @@ static int run_command(struct command_context *context,
                        free(full_name);
                } else
                        retval = -ENOMEM;
-       }
-       else if (retval == ERROR_COMMAND_CLOSE_CONNECTION)
-       {
+       } else if (retval == ERROR_COMMAND_CLOSE_CONNECTION) {
                /* just fall through for a shutdown request */
-       }
-       else if (retval != ERROR_OK)
-       {
+       } else if (retval != ERROR_OK) {
                /* we do not print out an error message because the command *should*
                 * have printed out an error
                 */
@@ -628,45 +651,40 @@ int command_run_line(struct command_context *context, char *line)
        Jim_Interp *interp = context->interp;
        Jim_DeleteAssocData(interp, "context");
        retcode = Jim_SetAssocData(interp, "context", NULL, context);
-       if (retcode == JIM_OK)
-       {
+       if (retcode == JIM_OK) {
                /* associated the return value */
                Jim_DeleteAssocData(interp, "retval");
                retcode = Jim_SetAssocData(interp, "retval", NULL, &retval);
-               if (retcode == JIM_OK)
-               {
-                       retcode = Jim_Eval_Named(interp, line, __THIS__FILE__, __LINE__);
+               if (retcode == JIM_OK) {
+                       retcode = Jim_Eval_Named(interp, line, 0, 0);
 
                        Jim_DeleteAssocData(interp, "retval");
                }
                Jim_DeleteAssocData(interp, "context");
        }
        if (retcode == JIM_ERR) {
-               if (retval != ERROR_COMMAND_CLOSE_CONNECTION)
-               {
+               if (retval != ERROR_COMMAND_CLOSE_CONNECTION) {
                        /* We do not print the connection closed error message */
-                       Jim_PrintErrorMessage(interp);
+                       Jim_MakeErrorMessage(interp);
+                       LOG_USER("%s", Jim_GetString(Jim_GetResult(interp), NULL));
                }
-               if (retval == ERROR_OK)
-               {
+               if (retval == ERROR_OK) {
                        /* It wasn't a low level OpenOCD command that failed */
                        return ERROR_FAIL;
                }
                return retval;
        } else if (retcode == JIM_EXIT) {
-               /* ignore. */
-               /* exit(Jim_GetExitCode(interp)); */
+               /* ignore.
+                * exit(Jim_GetExitCode(interp)); */
        } else {
                const char *result;
                int reslen;
 
                result = Jim_GetString(Jim_GetResult(interp), &reslen);
-               if (reslen > 0)
-               {
+               if (reslen > 0) {
                        int i;
                        char buff[256 + 1];
-                       for (i = 0; i < reslen; i += 256)
-                       {
+                       for (i = 0; i < reslen; i += 256) {
                                int chunk;
                                chunk = reslen - i;
                                if (chunk > 256)
@@ -675,7 +693,7 @@ int command_run_line(struct command_context *context, char *line)
                                buff[chunk] = 0;
                                LOG_USER_N("%s", buff);
                        }
-                       LOG_USER_N("%s", "\n");
+                       LOG_USER_N("\n");
                }
                retval = ERROR_OK;
        }
@@ -689,24 +707,24 @@ int command_run_linef(struct command_context *context, const char *format, ...)
        va_list ap;
        va_start(ap, format);
        string = alloc_vprintf(format, ap);
-       if (string != NULL)
-       {
+       if (string != NULL) {
                retval = command_run_line(context, string);
+               free(string);
        }
        va_end(ap);
        return retval;
 }
 
-void command_set_output_handler(struct command_contextcontext,
-               command_output_handler_t output_handler, void *priv)
+void command_set_output_handler(struct command_context *context,
+       command_output_handler_t output_handler, void *priv)
 {
        context->output_handler = output_handler;
        context->output_handler_priv = priv;
 }
 
-struct command_context* copy_command_context(struct command_context* context)
+struct command_context *copy_command_context(struct command_context *context)
 {
-       struct command_contextcopy_context = malloc(sizeof(struct command_context));
+       struct command_context *copy_context = malloc(sizeof(struct command_context));
 
        *copy_context = *context;
 
@@ -737,98 +755,21 @@ static int jim_find(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
        return JIM_OK;
 }
 
-static int jim_echo(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
+COMMAND_HANDLER(jim_echo)
 {
-       if (argc != 2)
+       if (CMD_ARGC == 2 && !strcmp(CMD_ARGV[0], "-n")) {
+               LOG_USER_N("%s", CMD_ARGV[1]);
+               return JIM_OK;
+       }
+       if (CMD_ARGC != 1)
                return JIM_ERR;
-       const char *str = Jim_GetString(argv[1], NULL);
-       LOG_USER("%s", str);
+       LOG_USER("%s", CMD_ARGV[0]);
        return JIM_OK;
 }
 
-static size_t openocd_jim_fwrite(const void *_ptr, size_t size, size_t n, void *cookie)
-{
-       size_t nbytes;
-       const char *ptr;
-       Jim_Interp *interp;
-
-       /* make it a char easier to read code */
-       ptr = _ptr;
-       interp = cookie;
-       nbytes = size * n;
-       if (ptr == NULL || interp == NULL || nbytes == 0) {
-               return 0;
-       }
-
-       /* do we have to chunk it? */
-       if (ptr[nbytes] == 0)
-       {
-               /* no it is a C style string */
-               LOG_USER_N("%s", ptr);
-               return strlen(ptr);
-       }
-       /* GRR we must chunk - not null terminated */
-       while (nbytes) {
-               char chunk[128 + 1];
-               int x;
-
-               x = nbytes;
-               if (x > 128) {
-                       x = 128;
-               }
-               /* copy it */
-               memcpy(chunk, ptr, x);
-               /* terminate it */
-               chunk[n] = 0;
-               /* output it */
-               LOG_USER_N("%s", chunk);
-               ptr += x;
-               nbytes -= x;
-       }
-
-       return n;
-}
-
-static size_t openocd_jim_fread(void *ptr, size_t size, size_t n, void *cookie)
-{
-       /* TCL wants to read... tell him no */
-       return 0;
-}
-
-static int openocd_jim_vfprintf(void *cookie, const char *fmt, va_list ap)
-{
-       char *cp;
-       int n;
-       Jim_Interp *interp;
-
-       n = -1;
-       interp = cookie;
-       if (interp == NULL)
-               return n;
-
-       cp = alloc_vprintf(fmt, ap);
-       if (cp)
-       {
-               LOG_USER_N("%s", cp);
-               n = strlen(cp);
-               free(cp);
-       }
-       return n;
-}
-
-static int openocd_jim_fflush(void *cookie)
-{
-       /* nothing to flush */
-       return 0;
-}
-
-static char* openocd_jim_fgets(char *s, int size, void *cookie)
-{
-       /* not supported */
-       errno = ENOTSUP;
-       return NULL;
-}
-
+/* Capture progress output and return as tcl return value. If the
+ * progress output was empty, return tcl return value.
+ */
 static int jim_capture(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 {
        if (argc != 2)
@@ -836,24 +777,36 @@ static int jim_capture(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 
        struct log_capture_state *state = command_log_capture_start(interp);
 
+       /* disable polling during capture. This avoids capturing output
+        * from polling.
+        *
+        * This is necessary in order to avoid accidentally getting a non-empty
+        * string for tcl fn's.
+        */
+       bool save_poll = jtag_poll_get_enabled();
+
+       jtag_poll_set_enabled(false);
+
        const char *str = Jim_GetString(argv[1], NULL);
        int retcode = Jim_Eval_Named(interp, str, __THIS__FILE__, __LINE__);
 
+       jtag_poll_set_enabled(save_poll);
+
        command_log_capture_finish(state);
 
        return retcode;
 }
 
 static COMMAND_HELPER(command_help_find, struct command *head,
-               struct command **out)
+       struct command **out)
 {
        if (0 == CMD_ARGC)
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
        *out = command_find(head, CMD_ARGV[0]);
        if (NULL == *out && strncmp(CMD_ARGV[0], "ocd_", 4) == 0)
                *out = command_find(head, CMD_ARGV[0] + 4);
        if (NULL == *out)
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
        if (--CMD_ARGC == 0)
                return ERROR_OK;
        CMD_ARGV++;
@@ -861,10 +814,10 @@ static COMMAND_HELPER(command_help_find, struct command *head,
 }
 
 static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
-               bool show_help, const char *match);
+       bool show_help, const char *match);
 
 static COMMAND_HELPER(command_help_show_list, struct command *head, unsigned n,
-               bool show_help, const char *match)
+       bool show_help, const char *match)
 {
        for (struct command *c = head; NULL != c; c = c->next)
                CALL_COMMAND_HANDLER(command_help_show, c, n, show_help, match);
@@ -881,8 +834,7 @@ static void command_help_show_indent(unsigned n)
 static void command_help_show_wrap(const char *str, unsigned n, unsigned n2)
 {
        const char *cp = str, *last = str;
-       while (*cp)
-       {
+       while (*cp) {
                const char *next = last;
                do {
                        cp = next;
@@ -893,18 +845,15 @@ static void command_help_show_wrap(const char *str, unsigned n, unsigned n2)
                if (next - last < HELP_LINE_WIDTH(n))
                        cp = next;
                command_help_show_indent(n);
-               LOG_USER_N("%.*s", (int)(cp - last), last);
-               LOG_USER_N("\n");
+               LOG_USER("%.*s", (int)(cp - last), last);
                last = cp + 1;
                n = n2;
        }
 }
+
 static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
-               bool show_help, const char *match)
+       bool show_help, const char *match)
 {
-       if (!command_can_run(CMD_CTX, c))
-               return ERROR_OK;
-
        char *cmd_name = command_name(c, ' ');
        if (NULL == cmd_name)
                return -ENOMEM;
@@ -912,28 +861,24 @@ static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
        /* If the match string occurs anywhere, we print out
         * stuff for this command. */
        bool is_match = (strstr(cmd_name, match) != NULL) ||
-       ((c->usage != NULL) && (strstr(c->usage, match) != NULL)) ||
-       ((c->help != NULL) && (strstr(c->help, match) != NULL));
+               ((c->usage != NULL) && (strstr(c->usage, match) != NULL)) ||
+               ((c->help != NULL) && (strstr(c->help, match) != NULL));
 
-       if (is_match)
-       {
+       if (is_match) {
                command_help_show_indent(n);
                LOG_USER_N("%s", cmd_name);
        }
        free(cmd_name);
 
-       if (is_match)
-       {
+       if (is_match) {
                if (c->usage) {
                        LOG_USER_N(" ");
                        command_help_show_wrap(c->usage, 0, n + 5);
-               }
-               else
+               } else
                        LOG_USER_N("\n");
        }
 
-       if (is_match && show_help)
-       {
+       if (is_match && show_help) {
                char *msg;
 
                /* Normal commands are runtime-only; highlight exceptions */
@@ -941,34 +886,36 @@ static COMMAND_HELPER(command_help_show, struct command *c, unsigned n,
                        const char *stage_msg = "";
 
                        switch (c->mode) {
-                       case COMMAND_CONFIG:
-                               stage_msg = " (configuration command)";
-                               break;
-                       case COMMAND_ANY:
-                               stage_msg = " (command valid any time)";
-                               break;
-                       default:
-                               stage_msg = " (?mode error?)";
-                               break;
+                               case COMMAND_CONFIG:
+                                       stage_msg = " (configuration command)";
+                                       break;
+                               case COMMAND_ANY:
+                                       stage_msg = " (command valid any time)";
+                                       break;
+                               default:
+                                       stage_msg = " (?mode error?)";
+                                       break;
                        }
                        msg = alloc_printf("%s%s", c->help ? : "", stage_msg);
                } else
                        msg = alloc_printf("%s", c->help ? : "");
 
-               if (NULL != msg)
-               {
+               if (NULL != msg) {
                        command_help_show_wrap(msg, n + 3, n + 3);
                        free(msg);
                } else
                        return -ENOMEM;
        }
 
-       if (++n >= 2)
-               return ERROR_OK;
+       if (++n > 5) {
+               LOG_ERROR("command recursion exceeded");
+               return ERROR_FAIL;
+       }
 
        return CALL_COMMAND_HANDLER(command_help_show_list,
-                       c->children, n, show_help, match);
+               c->children, n, show_help, match);
 }
+
 COMMAND_HANDLER(handle_help_command)
 {
        bool full = strcmp(CMD_NAME, "help") == 0;
@@ -985,19 +932,16 @@ COMMAND_HANDLER(handle_help_command)
                        if (NULL != match) {
                                char *prev = match;
 
-                               match = alloc_printf("%s %s", match,
-                                               CMD_ARGV[i]);
+                               match = alloc_printf("%s %s", match, CMD_ARGV[i]);
                                free(prev);
                                if (NULL == match) {
-                                       LOG_ERROR("unable to build "
-                                                       "search string");
+                                       LOG_ERROR("unable to build search string");
                                        return -ENOMEM;
                                }
                        } else {
                                match = alloc_printf("%s", CMD_ARGV[i]);
                                if (NULL == match) {
-                                       LOG_ERROR("unable to build "
-                                                       "search string");
+                                       LOG_ERROR("unable to build search string");
                                        return -ENOMEM;
                                }
                        }
@@ -1014,7 +958,7 @@ COMMAND_HANDLER(handle_help_command)
 }
 
 static int command_unknown_find(unsigned argc, Jim_Obj *const *argv,
-               struct command *head, struct command **out, bool top_level)
+       struct command *head, struct command **out, bool top_level)
 {
        if (0 == argc)
                return argc;
@@ -1028,12 +972,10 @@ static int command_unknown_find(unsigned argc, Jim_Obj *const *argv,
        return command_unknown_find(--argc, ++argv, (*out)->children, out, false);
 }
 
-
 static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 {
        const char *cmd_name = Jim_GetString(argv[0], NULL);
-       if (strcmp(cmd_name, "unknown") == 0)
-       {
+       if (strcmp(cmd_name, "unknown") == 0) {
                if (argc == 1)
                        return JIM_OK;
                argc--;
@@ -1044,9 +986,8 @@ static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
        struct command_context *cmd_ctx = current_command_context(interp);
        struct command *c = cmd_ctx->commands;
        int remaining = command_unknown_find(argc, argv, c, &c, true);
-       // if nothing could be consumed, then it's really an unknown command
-       if (remaining == argc)
-       {
+       /* if nothing could be consumed, then it's really an unknown command */
+       if (remaining == argc) {
                const char *cmd = Jim_GetString(argv[0], NULL);
                LOG_ERROR("Unknown command:\n  %s", cmd);
                return JIM_OK;
@@ -1055,17 +996,13 @@ static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
        bool found = true;
        Jim_Obj *const *start;
        unsigned count;
-       if (c->handler || c->jim_handler)
-       {
-               // include the command name in the list
+       if (c->handler || c->jim_handler) {
+               /* include the command name in the list */
                count = remaining + 1;
                start = argv + (argc - remaining - 1);
-       }
-       else
-       {
+       } else {
                c = command_find(cmd_ctx->commands, "usage");
-               if (NULL == c)
-               {
+               if (NULL == c) {
                        LOG_ERROR("unknown command, but usage is missing too");
                        return JIM_ERR;
                }
@@ -1073,9 +1010,8 @@ static int command_unknown(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
                start = argv;
                found = false;
        }
-       // pass the command through to the intended handler
-       if (c->jim_handler)
-       {
+       /* pass the command through to the intended handler */
+       if (c->jim_handler) {
                interp->cmdPrivData = c->jim_handler_data;
                return (*c->jim_handler)(interp, count, start);
        }
@@ -1088,27 +1024,32 @@ static int jim_command_mode(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
        struct command_context *cmd_ctx = current_command_context(interp);
        enum command_mode mode;
 
-       if (argc > 1)
-       {
+       if (argc > 1) {
                struct command *c = cmd_ctx->commands;
                int remaining = command_unknown_find(argc - 1, argv + 1, c, &c, true);
-               // if nothing could be consumed, then it's an unknown command
-               if (remaining == argc - 1)
-               {
+               /* if nothing could be consumed, then it's an unknown command */
+               if (remaining == argc - 1) {
                        Jim_SetResultString(interp, "unknown", -1);
                        return JIM_OK;
                }
                mode = c->mode;
-       }
-       else
+       } else
                mode = cmd_ctx->mode;
 
        const char *mode_str;
        switch (mode) {
-       case COMMAND_ANY: mode_str = "any"; break;
-       case COMMAND_CONFIG: mode_str = "config"; break;
-       case COMMAND_EXEC: mode_str = "exec"; break;
-       default: mode_str = "unknown"; break;
+               case COMMAND_ANY:
+                       mode_str = "any";
+                       break;
+               case COMMAND_CONFIG:
+                       mode_str = "config";
+                       break;
+               case COMMAND_EXEC:
+                       mode_str = "exec";
+                       break;
+               default:
+                       mode_str = "unknown";
+                       break;
        }
        Jim_SetResultString(interp, mode_str, -1);
        return JIM_OK;
@@ -1122,9 +1063,8 @@ static int jim_command_type(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
        struct command_context *cmd_ctx = current_command_context(interp);
        struct command *c = cmd_ctx->commands;
        int remaining = command_unknown_find(argc - 1, argv + 1, c, &c, true);
-       // if nothing could be consumed, then it's an unknown command
-       if (remaining == argc - 1)
-       {
+       /* if nothing could be consumed, then it's an unknown command */
+       if (remaining == argc - 1) {
                Jim_SetResultString(interp, "unknown", -1);
                return JIM_OK;
        }
@@ -1140,33 +1080,29 @@ static int jim_command_type(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 }
 
 int help_add_command(struct command_context *cmd_ctx, struct command *parent,
-               const char *cmd_name, const char *help_text, const char *usage)
+       const char *cmd_name, const char *help_text, const char *usage)
 {
        struct command **head = command_list_for_parent(cmd_ctx, parent);
        struct command *nc = command_find(*head, cmd_name);
-       if (NULL == nc)
-       {
-               // add a new command with help text
+       if (NULL == nc) {
+               /* add a new command with help text */
                struct command_registration cr = {
-                               .name = cmd_name,
-                               .mode = COMMAND_ANY,
-                               .help = help_text,
-                               .usage = usage,
-                       };
+                       .name = cmd_name,
+                       .mode = COMMAND_ANY,
+                       .help = help_text,
+                       .usage = usage,
+               };
                nc = register_command(cmd_ctx, parent, &cr);
-               if (NULL == nc)
-               {
+               if (NULL == nc) {
                        LOG_ERROR("failed to add '%s' help text", cmd_name);
                        return ERROR_FAIL;
                }
                LOG_DEBUG("added '%s' help text", cmd_name);
                return ERROR_OK;
        }
-       if (help_text)
-       {
+       if (help_text) {
                bool replaced = false;
-               if (nc->help)
-               {
+               if (nc->help) {
                        free((void *)nc->help);
                        replaced = true;
                }
@@ -1176,11 +1112,9 @@ int help_add_command(struct command_context *cmd_ctx, struct command *parent,
                else
                        LOG_DEBUG("added '%s' help text", cmd_name);
        }
-       if (usage)
-       {
+       if (usage) {
                bool replaced = false;
-               if (nc->usage)
-               {
+               if (nc->usage) {
                        free((void *)nc->usage);
                        replaced = true;
                }
@@ -1195,27 +1129,24 @@ int help_add_command(struct command_context *cmd_ctx, struct command *parent,
 
 COMMAND_HANDLER(handle_help_add_command)
 {
-       if (CMD_ARGC < 2)
-       {
+       if (CMD_ARGC < 2) {
                LOG_ERROR("%s: insufficient arguments", CMD_NAME);
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
        }
 
-       // save help text and remove it from argument list
+       /* save help text and remove it from argument list */
        const char *str = CMD_ARGV[--CMD_ARGC];
        const char *help = !strcmp(CMD_NAME, "add_help_text") ? str : NULL;
        const char *usage = !strcmp(CMD_NAME, "add_usage_text") ? str : NULL;
-       if (!help && !usage)
-       {
+       if (!help && !usage) {
                LOG_ERROR("command name '%s' is unknown", CMD_NAME);
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
        }
-       // likewise for the leaf command name
+       /* likewise for the leaf command name */
        const char *cmd_name = CMD_ARGV[--CMD_ARGC];
 
        struct command *c = NULL;
-       if (CMD_ARGC > 0)
-       {
+       if (CMD_ARGC > 0) {
                c = CMD_CTX->commands;
                int retval = CALL_COMMAND_HANDLER(command_help_find, c, &c);
                if (ERROR_OK != retval)
@@ -1230,14 +1161,12 @@ COMMAND_HANDLER(handle_help_add_command)
 COMMAND_HANDLER(handle_sleep_command)
 {
        bool busy = false;
-       if (CMD_ARGC == 2)
-       {
+       if (CMD_ARGC == 2) {
                if (strcmp(CMD_ARGV[1], "busy") == 0)
                        busy = true;
                else
                        return ERROR_COMMAND_SYNTAX_ERROR;
-       }
-       else if (CMD_ARGC < 1 || CMD_ARGC > 2)
+       } else if (CMD_ARGC < 1 || CMD_ARGC > 2)
                return ERROR_COMMAND_SYNTAX_ERROR;
 
        unsigned long duration = 0;
@@ -1245,16 +1174,13 @@ COMMAND_HANDLER(handle_sleep_command)
        if (ERROR_OK != retval)
                return retval;
 
-       if (!busy)
-       {
+       if (!busy) {
                long long then = timeval_ms();
-               while (timeval_ms() - then < (long long)duration)
-               {
+               while (timeval_ms() - then < (long long)duration) {
                        target_call_timer_callbacks_now();
                        usleep(1000);
                }
-       }
-       else
+       } else
                busy_sleep(duration);
 
        return ERROR_OK;
@@ -1285,6 +1211,15 @@ static const struct command_registration command_subcommand_handlers[] = {
 };
 
 static const struct command_registration command_builtin_handlers[] = {
+       {
+               .name = "echo",
+               .handler = jim_echo,
+               .mode = COMMAND_ANY,
+               .help = "Logs a message at \"user\" priority. "
+                       "Output message to stdout. "
+                       "Option \"-n\" suppresses trailing newline",
+               .usage = "[-n] string",
+       },
        {
                .name = "add_help_text",
                .handler = handle_help_add_command,
@@ -1327,16 +1262,16 @@ static const struct command_registration command_builtin_handlers[] = {
        },
        {
                .name = "command",
-               .mode= COMMAND_ANY,
+               .mode = COMMAND_ANY,
                .help = "core command group (introspection)",
                .chain = command_subcommand_handlers,
        },
        COMMAND_REGISTRATION_DONE
 };
 
-struct command_contextcommand_init(const char *startup_tcl, Jim_Interp *interp)
+struct command_context *command_init(const char *startup_tcl, Jim_Interp *interp)
 {
-       struct command_contextcontext = malloc(sizeof(struct command_context));
+       struct command_context *context = malloc(sizeof(struct command_context));
        const char *HostOs;
 
        context->mode = COMMAND_EXEC;
@@ -1345,19 +1280,18 @@ struct command_context* command_init(const char *startup_tcl, Jim_Interp *interp
        context->output_handler = NULL;
        context->output_handler_priv = NULL;
 
-#if !BUILD_ECOSBOARD
        /* Create a jim interpreter if we were not handed one */
-       if (interp == NULL)
-       {
-               Jim_InitEmbedded();
+       if (interp == NULL) {
                /* Create an interpreter */
                interp = Jim_CreateInterp();
                /* Add all the Jim core commands */
                Jim_RegisterCoreCommands(interp);
+               Jim_InitStaticExtensions(interp);
        }
-#endif
+
        context->interp = interp;
 
+       /* Stick to lowercase for HostOS strings. */
 #if defined(_MSC_VER)
        /* WinXX - is generic, the forward
         * looking problem is this:
@@ -1377,37 +1311,29 @@ struct command_context* command_init(const char *startup_tcl, Jim_Interp *interp
        HostOs = "mingw32";
 #elif defined(__ECOS)
        HostOs = "ecos";
+#elif defined(__FreeBSD__)
+       HostOs = "freebsd";
+#elif defined(__NetBSD__)
+       HostOs = "netbsd";
+#elif defined(__OpenBSD__)
+       HostOs = "openbsd";
 #else
 #warning "Unrecognized host OS..."
        HostOs = "other";
 #endif
        Jim_SetGlobalVariableStr(interp, "ocd_HOSTOS",
-                       Jim_NewStringObj(interp, HostOs , strlen(HostOs)));
+               Jim_NewStringObj(interp, HostOs, strlen(HostOs)));
 
        Jim_CreateCommand(interp, "ocd_find", jim_find, NULL, NULL);
-       Jim_CreateCommand(interp, "echo", jim_echo, NULL, NULL);
        Jim_CreateCommand(interp, "capture", jim_capture, NULL, NULL);
 
-       /* Set Jim's STDIO */
-       interp->cookie_stdin = interp;
-       interp->cookie_stdout = interp;
-       interp->cookie_stderr = interp;
-       interp->cb_fwrite = openocd_jim_fwrite;
-       interp->cb_fread = openocd_jim_fread ;
-       interp->cb_vfprintf = openocd_jim_vfprintf;
-       interp->cb_fflush = openocd_jim_fflush;
-       interp->cb_fgets = openocd_jim_fgets;
-
        register_commands(context, NULL, command_builtin_handlers);
 
-#if !BUILD_ECOSBOARD
-       Jim_EventLoopOnLoad(interp);
-#endif
        Jim_SetAssocData(interp, "context", NULL, context);
-       if (Jim_Eval_Named(interp, startup_tcl, "embedded:startup.tcl",1) == JIM_ERR)
-       {
+       if (Jim_Eval_Named(interp, startup_tcl, "embedded:startup.tcl", 1) == JIM_ERR) {
                LOG_ERROR("Failed to run startup.tcl (embedded into OpenOCD)");
-               Jim_PrintErrorMessage(interp);
+               Jim_MakeErrorMessage(interp);
+               LOG_USER_N("%s", Jim_GetString(Jim_GetResult(interp), NULL));
                exit(-1);
        }
        Jim_DeleteAssocData(interp, "context");
@@ -1418,7 +1344,7 @@ struct command_context* command_init(const char *startup_tcl, Jim_Interp *interp
 int command_context_mode(struct command_context *cmd_ctx, enum command_mode mode)
 {
        if (!cmd_ctx)
-               return ERROR_INVALID_ARGUMENTS;
+               return ERROR_COMMAND_SYNTAX_ERROR;
 
        cmd_ctx->mode = mode;
        return ERROR_OK;
@@ -1426,58 +1352,52 @@ int command_context_mode(struct command_context *cmd_ctx, enum command_mode mode
 
 void process_jim_events(struct command_context *cmd_ctx)
 {
-#if !BUILD_ECOSBOARD
-       static int recursion = 0;
+       static int recursion;
        if (recursion)
                return;
 
        recursion++;
        Jim_ProcessEvents(cmd_ctx->interp, JIM_ALL_EVENTS | JIM_DONT_WAIT);
        recursion--;
-#endif
 }
 
 #define DEFINE_PARSE_NUM_TYPE(name, type, func, min, max) \
-       int parse##name(const char *str, type *ul) \
+       int parse ## name(const char *str, type * ul) \
        { \
-               if (!*str) \
-               { \
+               if (!*str) { \
                        LOG_ERROR("Invalid command argument"); \
                        return ERROR_COMMAND_ARGUMENT_INVALID; \
                } \
                char *end; \
                *ul = func(str, &end, 0); \
-               if (*end) \
-               { \
+               if (*end) { \
                        LOG_ERROR("Invalid command argument"); \
                        return ERROR_COMMAND_ARGUMENT_INVALID; \
                } \
-               if ((max == *ul) && (ERANGE == errno)) \
-               { \
-                       LOG_ERROR("Argument overflow"); \
-                       return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
+               if ((max == *ul) && (ERANGE == errno)) { \
+                       LOG_ERROR("Argument overflow"); \
+                       return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
                } \
-               if (min && (min == *ul) && (ERANGE == errno)) \
-               { \
+               if (min && (min == *ul) && (ERANGE == errno)) { \
                        LOG_ERROR("Argument underflow"); \
                        return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
                } \
                return ERROR_OK; \
        }
-DEFINE_PARSE_NUM_TYPE(_ulong, unsigned long , strtoul, 0, ULONG_MAX)
+DEFINE_PARSE_NUM_TYPE(_ulong, unsigned long, strtoul, 0, ULONG_MAX)
 DEFINE_PARSE_NUM_TYPE(_ullong, unsigned long long, strtoull, 0, ULLONG_MAX)
-DEFINE_PARSE_NUM_TYPE(_long, long , strtol, LONG_MIN, LONG_MAX)
+DEFINE_PARSE_NUM_TYPE(_long, long, strtol, LONG_MIN, LONG_MAX)
 DEFINE_PARSE_NUM_TYPE(_llong, long long, strtoll, LLONG_MIN, LLONG_MAX)
 
 #define DEFINE_PARSE_WRAPPER(name, type, min, max, functype, funcname) \
-       int parse##name(const char *str, type *ul) \
+       int parse ## name(const char *str, type * ul) \
        { \
                functype n; \
-               int retval = parse##funcname(str, &n); \
-               if (ERROR_OK != retval) \
+               int retval = parse ## funcname(str, &n); \
+               if (ERROR_OK != retval) \
                        return retval; \
                if (n > max) \
-                       return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
+                       return ERROR_COMMAND_ARGUMENT_OVERFLOW; \
                if (min) \
                        return ERROR_COMMAND_ARGUMENT_UNDERFLOW; \
                *ul = n; \
@@ -1491,7 +1411,7 @@ DEFINE_PARSE_ULONG(_u32, uint32_t, 0, UINT32_MAX)
 DEFINE_PARSE_ULONG(_u16, uint16_t, 0, UINT16_MAX)
 DEFINE_PARSE_ULONG(_u8, uint8_t, 0, UINT8_MAX)
 
-#define DEFINE_PARSE_LONG(name, type, min, max) \
+#define DEFINE_PARSE_LONG(name, type, min, max)        \
        DEFINE_PARSE_WRAPPER(name, type, min, max, long, _long)
 DEFINE_PARSE_LONG(_int, int, n < INT_MIN, INT_MAX)
 DEFINE_PARSE_LONG(_s32, int32_t, n < INT32_MIN, INT32_MAX)
@@ -1499,7 +1419,7 @@ DEFINE_PARSE_LONG(_s16, int16_t, n < INT16_MIN, INT16_MAX)
 DEFINE_PARSE_LONG(_s8, int8_t, n < INT8_MIN, INT8_MAX)
 
 static int command_parse_bool(const char *in, bool *out,
-               const char *on, const char *off)
+       const char *on, const char *off)
 {
        if (strcasecmp(in, on) == 0)
                *out = true;
@@ -1507,7 +1427,7 @@ static int command_parse_bool(const char *in, bool *out,
                *out = false;
        else
                return ERROR_COMMAND_SYNTAX_ERROR;
-       return  ERROR_OK;
+       return ERROR_OK;
 }
 
 int command_parse_bool_arg(const char *in, bool *out)
@@ -1522,26 +1442,25 @@ int command_parse_bool_arg(const char *in, bool *out)
                return ERROR_OK;
        if (command_parse_bool(in, out, "1", "0") == ERROR_OK)
                return ERROR_OK;
-       return ERROR_INVALID_ARGUMENTS;
+       return ERROR_COMMAND_SYNTAX_ERROR;
 }
 
 COMMAND_HELPER(handle_command_parse_bool, bool *out, const char *label)
 {
        switch (CMD_ARGC) {
-       case 1: {
-               const char *in = CMD_ARGV[0];
-               if (command_parse_bool_arg(in, out) != ERROR_OK)
-               {
-                       LOG_ERROR("%s: argument '%s' is not valid", CMD_NAME, in);
-                       return ERROR_INVALID_ARGUMENTS;
+               case 1: {
+                       const char *in = CMD_ARGV[0];
+                       if (command_parse_bool_arg(in, out) != ERROR_OK) {
+                               LOG_ERROR("%s: argument '%s' is not valid", CMD_NAME, in);
+                               return ERROR_COMMAND_SYNTAX_ERROR;
+                       }
+                       /* fall through */
                }
-               // fall through
-       }
-       case 0:
-               LOG_INFO("%s is %s", label, *out ? "enabled" : "disabled");
-               break;
-       default:
-               return ERROR_INVALID_ARGUMENTS;
+               case 0:
+                       LOG_INFO("%s is %s", label, *out ? "enabled" : "disabled");
+                       break;
+               default:
+                       return ERROR_COMMAND_SYNTAX_ERROR;
        }
        return ERROR_OK;
 }