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/*
* OpenVPN -- An application to securely tunnel IP networks
* over a single UDP port, with support for SSL/TLS-based
* session authentication and key exchange,
* packet encryption, packet authentication, and
* packet compression.
*
* Copyright (C) 2002-2018 OpenVPN Inc <sales@openvpn.net>
* Copyright (C) 2014-2015 David Sommerseth <davids@redhat.com>
* Copyright (C) 2016-2018 David Sommerseth <davids@openvpn.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef CONSOLE_H
#define CONSOLE_H
#include "basic.h"
/**
* Configuration setup for declaring what kind of information to ask a user for
*/
struct _query_user {
char *prompt; /**< Prompt to present to the user */
size_t prompt_len; /**< Length of the prompt string */
char *response; /**< The user's response */
size_t response_len; /**< Length the of the user response */
bool echo; /**< True: The user should see what is being typed, otherwise mask it */
};
#define QUERY_USER_NUMSLOTS 10
extern struct _query_user query_user[]; /**< Global variable, declared in console.c */
/**
* Wipes all data put into all of the query_user structs
*
*/
void query_user_clear(void);
/**
* Adds an item to ask the user for
*
* @param prompt Prompt to display to the user
* @param prompt_len Length of the prompt string
* @param resp String containing the user response
* @param resp_len Length of the response string
* @param echo Should the user input be echoed to the user? If False, input will be masked
*
*/
void query_user_add(char *prompt, size_t prompt_len,
char *resp, size_t resp_len,
bool echo);
/**
* Executes a configured setup, using the built-in method for querying the user.
* This method uses the console/TTY directly.
*
* @param setup Pointer to the setup defining what to ask the user
*
* @return True if executing all the defined steps completed successfully
*/
bool query_user_exec_builtin(void);
#if defined(ENABLE_SYSTEMD)
/**
* Executes a configured setup, using the compiled method for querying the user
*
* @param setup Pointer to the setup defining what to ask the user
*
* @return True if executing all the defined steps completed successfully
*/
bool query_user_exec(void);
#else /* ENABLE_SYSTEMD not defined*/
/**
* Wrapper function enabling query_user_exec() if no alternative methods have
* been enabled
*
*/
static bool
query_user_exec(void)
{
return query_user_exec_builtin();
}
#endif /* defined(ENABLE_SYSTEMD) */
/**
* A plain "make Gert happy" wrapper. Same arguments as @query_user_add
*
* FIXME/TODO: Remove this when refactoring the complete user query process
* to be called at start-up initialization of OpenVPN.
*
*/
static inline bool
query_user_SINGLE(char *prompt, size_t prompt_len,
char *resp, size_t resp_len,
bool echo)
{
query_user_clear();
query_user_add(prompt, prompt_len, resp, resp_len, echo);
return query_user_exec();
}
#endif /* ifndef CONSOLE_H */
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