+/**
+ * Register one or more commands in the specified context, as children
+ * of @c parent (or top-level commends, if NULL). In a registration's
+ * record contains a non-NULL @c chain member and name is NULL, the
+ * commands on the chain will be registered in the same context.
+ * Otherwise, the chained commands are added as children of the command.
+ *
+ * @param cmd_ctx The command_context in which to register the command.
+ * @param parent Register this command as a child of this, or NULL to
+ * register a top-level command.
+ * @param cmds Pointer to an array of command_registration records that
+ * contains the desired command parameters. The last record must have
+ * NULL for all fields.
+ * @returns ERROR_OK on success; ERROR_FAIL if any registration fails.
+ */
+int register_commands(struct command_context *cmd_ctx, struct command *parent,
+ const struct command_registration *cmds);
+
+
+/**
+ * Unregisters command @c name from the given context, @c cmd_ctx.
+ * @param cmd_ctx The context of the registered command.
+ * @param parent The parent of the given command, or NULL.
+ * @param name The name of the command to unregister.
+ * @returns ERROR_OK on success, or an error code.
+ */
+int unregister_command(struct command_context *cmd_ctx,
+ struct command *parent, const char *name);
+/**
+ * Unregisters all commands from the specfied context.
+ * @param cmd_ctx The context that will be cleared of registered commands.
+ * @param parent If given, only clear commands from under this one command.
+ * @returns ERROR_OK on success, or an error code.
+ */
+int unregister_all_commands(struct command_context *cmd_ctx,
+ struct command *parent);
+
+struct command *command_find_in_context(struct command_context *cmd_ctx,
+ const char *name);
+struct command *command_find_in_parent(struct command *parent,
+ const char *name);
+
+/**
+ * Update the private command data field for a command and all descendents.
+ * This is used when creating a new heirarchy of commands that depends
+ * on obtaining a dynamically created context. The value will be available
+ * in command handlers by using the CMD_DATA macro.
+ * @param c The command (group) whose data pointer(s) will be updated.
+ * @param p The new data pointer to use for the command or its descendents.
+ */
+void command_set_handler_data(struct command *c, void *p);
+
+void command_set_output_handler(struct command_context *context,