--- lbbs/src/database.c	2025/04/28 12:45:57	1.8
+++ lbbs/src/database.c	2025/11/21 02:28:15	1.24
@@ -1,29 +1,35 @@
-/***************************************************************************
-						 database.c  -  description
-							 -------------------
-	begin                : Mon Oct 11 2004
-	copyright            : (C) 2004 by Leaflet
-	email                : leaflet@leafok.com
- ***************************************************************************/
-
-/***************************************************************************
- *                                                                         *
- *   This program is free software; you can redistribute it and/or modify  *
- *   it under the terms of the GNU General Public License as published by  *
- *   the Free Software Foundation; either version 2 of the License, or     *
- *   (at your option) any later version.                                   *
- *                                                                         *
- ***************************************************************************/
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * database
+ *   - configuration and function of DB connection
+ *
+ * Copyright (C) 2004-2025  Leaflet <leaflet@leafok.com>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
 
 #include "common.h"
+#include "database.h"
+#include "log.h"
 #include <mysql.h>
 #include <stdio.h>
+#include <string.h>
 
-MYSQL *
-db_open()
+// Global declaration for database
+char DB_ca_cert[FILE_PATH_LEN] = "conf/ca_cert.pem";
+char DB_host[DB_host_max_len + 1];
+char DB_username[DB_username_max_len + 1];
+char DB_password[DB_password_max_len + 1];
+char DB_database[DB_database_max_len + 1];
+char DB_timezone[DB_timezone_max_len + 1];
+
+MYSQL *db_open()
 {
-	MYSQL *db;
-	char sql[1024];
+	MYSQL *db = NULL;
+	unsigned int ssl_mode = SSL_MODE_VERIFY_CA;
+	char sql[SQL_BUFFER_LEN];
 
 	db = mysql_init(NULL);
 	if (db == NULL)
@@ -32,27 +38,41 @@ db_open()
 		return NULL;
 	}
 
-	db = mysql_real_connect(db, DB_host, DB_username, DB_password, DB_database,
-							0, NULL, 0);
-	if (db == NULL)
+	if (mysql_ssl_set(db, NULL, NULL, DB_ca_cert, NULL, NULL) != 0)
+	{
+		log_error("mysql_ssl_set() error\n");
+		return NULL;
+	}
+
+	if (mysql_options(db, MYSQL_OPT_SSL_MODE, &ssl_mode) != 0)
+	{
+		log_error("mysql_options() error\n");
+		return NULL;
+	}
+
+	if (mysql_real_connect(db, DB_host, DB_username, DB_password, DB_database,
+						   0, NULL, 0) == NULL)
 	{
-		log_error("mysql_connect() failed\n");
+		log_error("mysql_real_connect() error: %s\n", mysql_error(db));
+		mysql_close(db);
 		return NULL;
 	}
 
-	if (mysql_set_character_set(db, "gb2312") != 0)
+	if (mysql_set_character_set(db, "utf8") != 0)
 	{
-		log_error("Set character set failed\n");
+		log_error("Set character set error: %s\n", mysql_error(db));
+		mysql_close(db);
 		return NULL;
 	}
 
-	sprintf(sql,
-		"SET time_zone = '%s'",
-		DB_timezone);
+	snprintf(sql, sizeof(sql),
+			 "SET time_zone = '%s'",
+			 DB_timezone);
 
 	if (mysql_query(db, sql) != 0)
 	{
-		log_error("Set timezone failed\n");
+		log_error("Set timezone error: %s\n", mysql_error(db));
+		mysql_close(db);
 		return NULL;
 	}