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/*
Copyright (c) 2018, 2025, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is designed to work with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have either included with
the program or referenced in the documentation.
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 St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <cstdlib>
#include <fstream>
#include <iostream>
#include <sstream>
#include <stdexcept>
std::string get_master_key_file_path() {
#ifdef _WIN32
char env_str[2000] = {0};
size_t len = 0;
int err_code;
if ((err_code =
getenv_s(&len, env_str, sizeof(env_str), "MASTER_KEY_PATH")) != 0)
throw std::runtime_error("Failed to read MASTER_KEY_PATH variable: " +
std::to_string(err_code));
return std::string(env_str);
#else
return getenv("MASTER_KEY_PATH");
#endif
}
/*
* MySQLRouter sets ROUTER_ID environment variable which can be used by
* master-key-writer/master-key-writer to distinguish between routers, and
* write/read appropriate master key.
*
* This function checks if ROUTER_ID variable is set.
*
* @return true if ROUTER_ID is set in environment, false otherwise.
*/
bool check_router_id() {
#ifdef _WIN32
char env_str[2000] = {0};
size_t len = 0;
return getenv_s(&len, env_str, sizeof(env_str), "ROUTER_ID") == 0;
#else
return getenv("ROUTER_ID") != nullptr;
#endif
}
int main() {
if (!check_router_id()) return 1;
std::stringstream file_content;
file_content << std::cin.rdbuf();
std::string master_key = file_content.str();
{
std::ofstream output_file(get_master_key_file_path());
output_file << master_key;
}
return 0;
}
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