1 /* mysqlConn.c - NeonServ v5.6
2 * Copyright (C) 2011-2012 Philipp Kreil (pk910)
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #include "mysqlConn.h"
19 #define DATABASE_VERSION "20"
21 static void show_mysql_error();
23 struct mysql_conn_struct {
26 struct used_result *used_results;
27 struct escaped_string *escaped_strings;
28 struct mysql_conn_struct *next;
33 struct used_result *next;
36 struct escaped_string {
38 struct escaped_string *next;
41 struct mysql_conn_struct *get_mysql_conn_struct();
43 struct mysql_conn_struct *mysql_conns = NULL;
44 static int mysql_serverport;
45 static char *mysql_host, *mysql_user, *mysql_pass, *mysql_base;
48 static pthread_mutex_t synchronized;
51 static void check_mysql() {
52 MYSQL *mysql_conn = get_mysql_conn();
54 if((errid = mysql_ping(mysql_conn))) {
55 if(mysql_errno(mysql_conn) == CR_SERVER_GONE_ERROR) {
56 if(!mysql_real_connect(mysql_conn, mysql_host, mysql_user, mysql_pass, mysql_base, mysql_serverport, NULL, 0)) {
66 MYSQL_RES *mysql_use() {
67 struct mysql_conn_struct *mysql_conn = get_mysql_conn_struct();
68 MYSQL_RES *res = mysql_store_result(mysql_conn->mysql_conn);
69 struct used_result *result = malloc(sizeof(*result));
71 mysql_free_result(res);
75 result->next = mysql_conn->used_results;
76 mysql_conn->used_results = result;
81 struct mysql_conn_struct *mysql_conn = get_mysql_conn_struct();
82 if(!mysql_conn) return;
83 struct used_result *result, *next_result;
84 for(result = mysql_conn->used_results; result; result = next_result) {
85 next_result = result->next;
86 mysql_free_result(result->result);
89 mysql_conn->used_results = NULL;
90 struct escaped_string *escaped, *next_escaped;
91 for(escaped = mysql_conn->escaped_strings; escaped; escaped = next_escaped) {
92 next_escaped = escaped->next;
93 free(escaped->string);
96 mysql_conn->escaped_strings = NULL;
99 void init_mysql(char *host, int port, char *user, char *pass, char *base) {
100 THREAD_MUTEX_INIT(synchronized);
101 mysql_host = strdup(host);
102 mysql_serverport = port;
103 mysql_user = strdup(user);
104 mysql_pass = strdup(pass);
105 mysql_base = strdup(base);
108 MYSQL *mysql_conn = get_mysql_conn();
110 //check database version...
112 if(!mysql_query(mysql_conn, "SELECT `database_version` FROM `version`")) {
113 MYSQL_RES *res = mysql_use();
115 if((row = mysql_fetch_row(res))) {
116 version = atoi(row[0]);
121 FILE *f = fopen("database.sql", "r");
122 mysql_set_server_option(mysql_conn, MYSQL_OPTION_MULTI_STATEMENTS_ON);
125 char query_buffer[8192];
126 int query_buffer_pos = 0;
127 while (fgets(line, sizeof(line), f)) {
128 query_buffer_pos += sprintf(query_buffer + query_buffer_pos, " %s", line);
129 if(line[(strlen(line) - 2)] == ';') {
130 if(mysql_query(mysql_conn, query_buffer))
132 query_buffer_pos = 0;
137 f = fopen("database.defaults.sql", "r");
140 char query_buffer[131072];
141 int query_buffer_pos = 0;
142 while (fgets(line, sizeof(line), f)) {
143 query_buffer_pos += sprintf(query_buffer + query_buffer_pos, " %s", line);
144 if(line[(strlen(line) - 2)] == ';') {
145 if(mysql_query(mysql_conn, query_buffer))
147 query_buffer_pos = 0;
153 MYSQL_RES *res = mysql_store_result(mysql_conn);
154 mysql_free_result(res);
155 } while(!mysql_next_result(mysql_conn));
156 mysql_set_server_option(mysql_conn, MYSQL_OPTION_MULTI_STATEMENTS_OFF);
157 mysql_query(mysql_conn, "INSERT INTO `version` (`database_version`) VALUES ('" DATABASE_VERSION "')");
159 else if(version < atoi(DATABASE_VERSION)) {
161 FILE *f = fopen("database.upgrade.sql", "r");
162 mysql_set_server_option(mysql_conn, MYSQL_OPTION_MULTI_STATEMENTS_ON);
165 char query_buffer[8192];
166 int query_buffer_pos = 0, use_querys = 0;
167 sprintf(query_buffer, "-- version: %d", version);
168 while (fgets(line, sizeof(line), f)) {
170 query_buffer_pos += sprintf(query_buffer + query_buffer_pos, " %s", line);
171 if(line[strlen(line) - 1] == ';') {
172 mysql_query(mysql_conn, query_buffer);
173 query_buffer_pos = 0;
175 } else if(!stricmplen(query_buffer, line, strlen(query_buffer))) {
179 if(query_buffer_pos) {
180 if(mysql_query(mysql_conn, query_buffer))
185 perror("database.sql missing!");
187 MYSQL_RES *res = mysql_store_result(mysql_conn);
188 mysql_free_result(res);
189 } while(!mysql_next_result(mysql_conn));
190 mysql_set_server_option(mysql_conn, MYSQL_OPTION_MULTI_STATEMENTS_OFF);
191 mysql_query(mysql_conn, "UPDATE `version` SET `database_version` = '" DATABASE_VERSION "'");
196 struct mysql_conn_struct *mysql_conn, *next;
197 for(mysql_conn = mysql_conns; mysql_conn; mysql_conn = next) {
198 next = mysql_conn->next;
199 mysql_close(mysql_conn->mysql_conn);
205 static void show_mysql_error() {
206 MYSQL *mysql_conn = get_mysql_conn();
208 putlog(LOGLEVEL_ERROR, "MySQL Error: %s\n", mysql_error(mysql_conn));
211 void printf_mysql_query(const char *text, ...) {
212 MYSQL *mysql_conn = get_mysql_conn();
214 char queryBuf[MYSQLMAXLEN];
217 va_start(arg_list, text);
218 pos = vsnprintf(queryBuf, MYSQLMAXLEN - 2, text, arg_list);
220 if (pos < 0 || pos > (MYSQLMAXLEN - 2)) pos = MYSQLMAXLEN - 2;
221 queryBuf[pos] = '\0';
222 putlog(LOGLEVEL_MYSQL, "MySQL: %s\n", queryBuf);
223 if(mysql_query(mysql_conn, queryBuf)) {
225 if(mysql_query(mysql_conn, queryBuf)) {
231 void printf_long_mysql_query(int len, const char *text, ...) {
232 MYSQL *mysql_conn = get_mysql_conn();
237 va_start(arg_list, text);
238 pos = vsnprintf(queryBuf, len - 2, text, arg_list);
240 if (pos < 0 || pos > (len - 2)) pos = len - 2;
241 queryBuf[pos] = '\0';
242 putlog(LOGLEVEL_MYSQL, "MySQL: %s\n", queryBuf);
243 if(mysql_query(mysql_conn, queryBuf)) {
245 if(mysql_query(mysql_conn, queryBuf)) {
251 char* escape_string(const char *str) {
252 struct mysql_conn_struct *mysql_conn = get_mysql_conn_struct();
253 struct escaped_string *escapedstr = malloc(sizeof(*escapedstr));
257 char escaped[strlen(str)*2+1];
258 mysql_real_escape_string(mysql_conn->mysql_conn, escaped, str, strlen(str));
259 escapedstr->string = strdup(escaped);
260 escapedstr->next = mysql_conn->escaped_strings;
261 mysql_conn->escaped_strings = escapedstr;
262 return escapedstr->string;
265 struct mysql_conn_struct *get_mysql_conn_struct() {
266 SYNCHRONIZE(synchronized);
267 struct mysql_conn_struct *mysql_conn;
270 tid = (unsigned int) pthread_self_tid();
274 for(mysql_conn = mysql_conns; mysql_conn; mysql_conn = mysql_conn->next) {
275 if(mysql_conn->tid == tid) {
276 DESYNCHRONIZE(synchronized);
280 mysql_conn = malloc(sizeof(*mysql_conn));
281 mysql_conn->mysql_conn = mysql_init(NULL);
282 mysql_conn->tid = tid;
283 mysql_conn->used_results = NULL;
284 mysql_conn->escaped_strings = NULL;
285 mysql_conn->next = mysql_conns;
286 mysql_conns = mysql_conn;
287 if (!mysql_real_connect(mysql_conn->mysql_conn, mysql_host, mysql_user, mysql_pass, mysql_base, mysql_serverport, NULL, 0)) {
291 DESYNCHRONIZE(synchronized);
295 MYSQL *get_mysql_conn() {
296 struct mysql_conn_struct *mysql_conn = get_mysql_conn_struct();
297 return mysql_conn->mysql_conn;