mirror of
https://git.kernel.org/pub/scm/network/wireless/iwd.git
synced 2024-12-23 14:22:36 +01:00
228 lines
4.8 KiB
C
228 lines
4.8 KiB
C
/*
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*
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* Wireless daemon for Linux
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*
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* Copyright (C) 2017 Intel Corporation. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <ell/ell.h>
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#include "command.h"
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#include "display.h"
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static struct l_queue *command_families;
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static void cmd_version(const char *entity, char *arg)
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{
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display("IWD version %s\n", VERSION);
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}
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static void cmd_quit(const char *entity, char *arg)
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{
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display_quit();
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l_main_quit();
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}
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static const struct command command_list[] = {
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{ NULL, "version", NULL, cmd_version, "Display version" },
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{ NULL, "quit", NULL, cmd_quit, "Quit program" },
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{ NULL, "exit", NULL, cmd_quit },
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{ NULL, "help" },
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{ }
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};
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static void execute_cmd(const char *family, const char *entity,
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const struct command *cmd, char *args)
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{
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display_refresh_set_cmd(family, entity, cmd, args);
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cmd->function(entity, args);
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if (cmd->refreshable)
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display_refresh_timeout_set();
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}
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static bool match_cmd(const char *family, const char *entity, const char *cmd,
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char *args, const struct command *command_list)
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{
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size_t i;
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for (i = 0; command_list[i].cmd; i++) {
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if (strcmp(command_list[i].cmd, cmd))
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continue;
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if (!command_list[i].function)
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goto nomatch;
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execute_cmd(family, entity, &command_list[i], args);
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return true;
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}
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nomatch:
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return false;
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}
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static bool match_cmd_family(const char *cmd_family, char *arg)
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{
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const struct l_queue_entry *entry;
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const char *arg1;
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const char *arg2;
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for (entry = l_queue_get_entries(command_families); entry;
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entry = entry->next) {
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const struct command_family *family = entry->data;
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if (strcmp(family->name, cmd_family))
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continue;
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arg1 = strtok_r(NULL, " ", &arg);
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if (!arg1)
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goto nomatch;
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if (match_cmd(family->name, NULL, arg1, arg,
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family->command_list))
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return true;
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arg2 = strtok_r(NULL, " ", &arg);
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if (!arg2)
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goto nomatch;
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if (!match_cmd(family->name, arg1, arg2, arg,
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family->command_list))
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goto nomatch;
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return true;
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}
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nomatch:
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return false;
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}
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static void list_commands(const char *command_family,
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const struct command *cmd_list)
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{
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size_t i;
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for (i = 0; cmd_list[i].cmd; i++) {
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if (!cmd_list[i].desc)
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continue;
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display_command_line(command_family, &cmd_list[i]);
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}
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}
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static void list_cmd_families(void)
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{
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const struct l_queue_entry *entry;
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for (entry = l_queue_get_entries(command_families); entry;
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entry = entry->next) {
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const struct command_family *family = entry->data;
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display("\n%s:\n", family->caption);
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list_commands(family->name, family->command_list);
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}
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}
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void command_process_prompt(char *prompt)
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{
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const char *cmd;
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char *arg = NULL;
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cmd = strtok_r(prompt, " ", &arg);
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if (!cmd)
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return;
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if (match_cmd_family(cmd, arg))
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return;
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display_refresh_reset();
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if (match_cmd(NULL, NULL, cmd, arg, command_list))
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return;
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if (strcmp(cmd, "help")) {
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display("Invalid command\n");
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return;
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}
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display_table_header("Available commands", MARGIN "%-*s%-*s",
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50, "Commands", 28, "Description");
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list_cmd_families();
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display("\n");
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list_commands(NULL, command_list);
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}
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void command_family_register(const struct command_family *family)
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{
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l_queue_push_tail(command_families, (void *) family);
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}
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void command_family_unregister(const struct command_family *family)
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{
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l_queue_remove(command_families, (void *) family);
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}
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extern struct command_family_desc __start___command[];
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extern struct command_family_desc __stop___command[];
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void command_init(void)
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{
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struct command_family_desc *desc;
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command_families = l_queue_new();
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if (__start___command == NULL || __stop___command == NULL)
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return;
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for (desc = __start___command; desc < __stop___command; desc++) {
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if (!desc->init)
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continue;
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desc->init();
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}
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}
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void command_exit(void)
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{
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struct command_family_desc *desc;
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if (__start___command == NULL || __stop___command == NULL)
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return;
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for (desc = __start___command; desc < __stop___command; desc++) {
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if (!desc->exit)
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continue;
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desc->exit();
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}
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l_queue_destroy(command_families, NULL);
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command_families = NULL;
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}
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