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/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*/
/**
* @file src/include/cynara-creds-self.h
* @author Zofia Abramowska <z.abramowska@samsung.com>
* @version 1.0
* @brief This file contains Cynara credentials helper APIs for current process
* @example cynara-creds-self.example
*/
#ifndef CYNARA_CREDS_SELF_H
#define CYNARA_CREDS_SELF_H
#include <sys/types.h>
#include <cynara/cynara-creds-commons.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* \par Description:
* Creates a client identification string with given method. Client is a current process.
*
* \par Purpose:
* Client identification string is required for cynara_check() and cynara_async_create_request()
* functions.
*
* \par Typical use case:
* The function is called before the call of cynara_check() or cynara_async_create_request()
* function. Returned string is used as client parameter in cynara_check() or
* cynara_async_create_request() function. String is released with free() function when it is no
* longer needed.
*
* \par Method of function operation:
* The function generates client string using current process context.
*
* \par Sync (or) Async:
* This is a synchronous API.
*
* \par Thread safety:
* This function is NOT thread-safe. If functions from described API are called by multithreaded
* application from different threads, they must be put into mutex protected critical section.
*
* \par Important notes:
* Memory for returned client string is obtained with malloc(), and should be freed with free().
* Allocated string is returned only, when function succeeds.
* If method is CLIENT_METHOD_DEFAULT then it will be chosen based on Cynara configuration file.
*
* \param[in] method Method of client identifier creation
* \param[out] client Placeholder for allocated string containing client id
*
* \return CYNARA_API_SUCCESS on success
* \return CYNARA_API_INVALID_PARAM when client is NULL
* \return CYNARA_API_METHOD_NOT_SUPPORTED when requested method is not supported
* \return CYNARA_API_CONFIGURATION_ERROR if the configuration file can not be opened or
* there are errors in configuration file
* \return CYNARA_API_OUT_OF_MEMORY when there was error allocating memory
*/
int cynara_creds_self_get_client(enum cynara_client_creds method, char **client);
/**
* \par Description:
* Creates a user identification string with given method. User is current process.
*
* \par Purpose:
* User identification string is required for cynara_check() and cynara_async_create_request()
* functions.
*
* \par Typical use case:
* The function is called before the call of cynara_check() or cynara_async_create_request()
* function. Returned string is used as user parameter in cynara_check() or
* cynara_async_create_request() function. String is released with free() function when it is no
* longer needed.
*
* \par Method of function operation:
* The function generates user string using current process context.
*
* \par Sync (or) Async:
* This is a synchronous API.
*
* \par Thread safety:
* This function is NOT thread-safe. If functions from described API are called by multithreaded
* application from different threads, they must be put into mutex protected critical section.
*
* \par Important notes:
* Memory for returned user string is obtained with malloc(), and should be freed with free().
* Allocated string is returned only, when function succeeds.
* If method is USER_METHOD_DEFAULT then it will be chosen based on Cynara configuration file.
*
* \param[in] method Method of user identifier creation
* \param[out] user Placeholder for allocated string containing user id
*
* \return CYNARA_API_SUCCESS on success
* \return CYNARA_API_INVALID_PARAM when user is NULL
* \return CYNARA_API_METHOD_NOT_SUPPORTED when requested method is not supported
* \return CYNARA_API_CONFIGURATION_ERROR if the configuration file can not be opened or
* there are errors in configuration file
* \return CYNARA_API_OUT_OF_MEMORY when there was error allocating memory
*/
int cynara_creds_self_get_user(enum cynara_user_creds method, char **user);
#ifdef __cplusplus
}
#endif
#endif /* CYNARA_CREDS_SELF_H */
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