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https://git.kernel.org/pub/scm/network/wireless/iwd.git
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9aefec6124
There is a limitation of libreadline where no context/userdata can be passed to completion functions. Thi affects iwctl since the entity value isn't known to completion functions. Workarounds such as getting the default device are employed but its not a great solution. Instead hack around this limitation by parsing the prompt to extract the entity (second arg). Then use a generic match function given to readline which can call the actual match function and include the entity.
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/*
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*
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* Wireless daemon for Linux
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*
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* Copyright (C) 2017-2019 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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#define COMMAND_OPTION_USERNAME "username"
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#define COMMAND_OPTION_PASSWORD "password"
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#define COMMAND_OPTION_PASSPHRASE "passphrase"
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#define COMMAND_OPTION_DONTASK "dont-ask"
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typedef char *(*command_completion_func_t)(const char *text, int state,
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const char *entity);
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typedef char *(*command_rl_completion_func_t)(const char *text, int state);
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enum cmd_status {
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CMD_STATUS_TRIGGERED,
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CMD_STATUS_DONE,
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CMD_STATUS_INVALID_ARGS,
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CMD_STATUS_INVALID_VALUE,
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CMD_STATUS_UNSUPPORTED,
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CMD_STATUS_FAILED,
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};
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struct command {
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const char *entity;
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const char *cmd;
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const char *arg;
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enum cmd_status (*function)(const char *entity,
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char **argv, int argc);
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const char *desc;
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const bool refreshable;
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command_completion_func_t completion;
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};
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struct command_family {
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const char *caption;
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const char *name;
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const struct command *command_list;
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command_rl_completion_func_t family_arg_completion;
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command_rl_completion_func_t entity_arg_completion;
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void (*set_default_entity)(const char *entity);
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void (*reset_default_entity)(void);
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};
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bool command_option_get(const char *name, const char **value_out);
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bool command_needs_no_agent(void);
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bool command_line_find_token(const char *token, uint8_t num_to_inspect);
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char **command_completion(const char *text, int start, int end);
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char *command_entity_arg_completion(const char *text, int state,
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const struct command *command_list);
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void command_process_prompt(char **argv, int argc);
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void command_noninteractive_trigger(void);
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bool command_is_interactive_mode(void);
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int command_get_exit_status(void);
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void command_set_exit_status(int status);
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void command_reset_default_entities(void);
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void command_family_register(const struct command_family *family);
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void command_family_unregister(const struct command_family *family);
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struct command_family_desc {
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const char *name;
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int (*init)(void);
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void (*exit)(void);
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} __attribute__((aligned(8)));
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#define COMMAND_FAMILY(name, init, exit) \
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_Pragma("GCC diagnostic push") \
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_Pragma("GCC diagnostic ignored \"-Wattributes\"") \
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static struct command_family_desc __command_family_ ## name \
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__attribute__((used, retain, \
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section("__command"), aligned(8))) = { \
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#name, init, exit \
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}; \
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_Pragma("GCC diagnostic pop")
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bool command_init(char **argv, int argc);
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void command_exit(void);
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