Return-Path: From: Marcin Kraglak To: linux-bluetooth@vger.kernel.org Subject: [PATCH 1/4] shared/bt_shell: Add initial implementation Date: Fri, 22 Sep 2017 00:59:59 -0400 Message-Id: <20170922050002.24002-2-marcin.kraglak@tieto.com> In-Reply-To: <20170922050002.24002-1-marcin.kraglak@tieto.com> References: <20170922050002.24002-1-marcin.kraglak@tieto.com> Sender: linux-bluetooth-owner@vger.kernel.org List-ID: This module will handle command line in applications like bluetoothctl and meshctl. --- src/shared/bt_shell.c | 92 +++++++++++++++++++++++++++++++++++++++++++++++++++ src/shared/bt_shell.h | 42 +++++++++++++++++++++++ 2 files changed, 134 insertions(+) create mode 100644 src/shared/bt_shell.c create mode 100644 src/shared/bt_shell.h diff --git a/src/shared/bt_shell.c b/src/shared/bt_shell.c new file mode 100644 index 000000000..78d23c7ea --- /dev/null +++ b/src/shared/bt_shell.c @@ -0,0 +1,92 @@ +/* + * + * BlueZ - Bluetooth protocol stack for Linux + * + * Copyright (C) 2017 Intel Corporation. All rights reserved. + * + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include +#include "src/shared/util.h" +#include "src/shared/queue.h" +#include "src/shared/bt_shell.h" + +#define CMD_LENGTH 48 + +static struct { + const struct bt_shell_menu_entry *current; +} bt_shell_data; + +bool bt_shell_init(const struct bt_shell_menu_entry *menu) +{ + if (bt_shell_data.current || !menu) + return false; + + bt_shell_data.current = menu; + + return true; +} + +void bt_shell_cleanup(void) +{ + bt_shell_data.current = NULL; +} + +void bt_shell_process(const char *cmd, const char *arg) +{ + const struct bt_shell_menu_entry *entry; + + if (!bt_shell_data.current || !cmd) + return; + + for (entry = bt_shell_data.current; entry->cmd; entry++) { + if (strcmp(cmd, entry->cmd)) + continue; + + if (entry->func) { + entry->func(arg); + return; + } + } + + if (strcmp(cmd, "help")) { + printf("Invalid command\n"); + return; + } + + bt_shell_print_menu(); +} + +void bt_shell_print_menu(void) +{ + const struct bt_shell_menu_entry *entry; + + if (!bt_shell_data.current) + return; + + printf("Available commands:\n"); + for (entry = bt_shell_data.current; entry->cmd; entry++) { + printf(" %s %-*s %s\n", entry->cmd, + (int)(CMD_LENGTH - strlen(entry->cmd)), + entry->arg ? : "", entry->desc ? : ""); + } +} diff --git a/src/shared/bt_shell.h b/src/shared/bt_shell.h new file mode 100644 index 000000000..93d7ed771 --- /dev/null +++ b/src/shared/bt_shell.h @@ -0,0 +1,42 @@ +/* + * + * BlueZ - Bluetooth protocol stack for Linux + * + * Copyright (C) 2017 Intel Corporation. All rights reserved. + * + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * + */ + +typedef void (*bt_shell_menu_cb_t)(const char *arg); +typedef char * (*bt_shell_menu_gen_t)(const char *text, int state); +typedef void (*bt_shell_menu_disp_t) (char **matches, int num_matches, + int max_length); + +struct bt_shell_menu_entry { + const char *cmd; + const char *arg; + bt_shell_menu_cb_t func; + const char *desc; + bt_shell_menu_gen_t gen; + bt_shell_menu_disp_t disp; +}; + +bool bt_shell_init(const struct bt_shell_menu_entry *menu); +void bt_shell_cleanup(void); + +void bt_shell_process(const char *cmd, const char *arg); +void bt_shell_print_menu(void); -- 2.13.5