src/bnetd/sql_mysql.c

/*
 * Copyright (C) 2002,2003 Mihai RUSU (dizzy@rdsnet.ro)
 *
 * 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.
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */

#ifdef WITH_SQL_MYSQL
#include "common/setup_before.h"
#ifdef WIN32
#include <windows.h>
#include <mysql/mysql.h>
#else
#include <mysql.h>
#endif
#include <stdlib.h>
#include "common/eventlog.h"
#include "common/xalloc.h"
#include "storage_sql.h"
#include "sql_mysql.h"
#include "common/setup_after.h"

static int sql_mysql_init(const char *, const char *, const char *, const char *, const char *, const char *);
static int sql_mysql_close(void);
static t_sql_res * sql_mysql_query_res(const char *);
static int sql_mysql_query(const char *);
static t_sql_row * sql_mysql_fetch_row(t_sql_res *);
static void sql_mysql_free_result(t_sql_res *);
static unsigned int sql_mysql_num_rows(t_sql_res *);
static unsigned int sql_mysql_num_fields(t_sql_res *);
static unsigned int sql_mysql_affected_rows(void);
static t_sql_field * sql_mysql_fetch_fields(t_sql_res *);
static int sql_mysql_free_fields(t_sql_field *);
static void sql_mysql_escape_string(char *, const char *, int);

t_sql_engine sql_mysql = {
    sql_mysql_init,
    sql_mysql_close,
    sql_mysql_query_res,
    sql_mysql_query,
    sql_mysql_fetch_row,
    sql_mysql_free_result,
    sql_mysql_num_rows,
    sql_mysql_num_fields,
    sql_mysql_affected_rows,
    sql_mysql_fetch_fields,
    sql_mysql_free_fields,
    sql_mysql_escape_string
};

static MYSQL *mysql = NULL;

static int sql_mysql_init(const char *host, const char *port, const char *socket, const char *name, const char *user, const char *pass)
{
    if (name == NULL || user == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "got NULL parameter");
        return -1;
    }

    if ((mysql = mysql_init(NULL)) == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "got error from mysql_init");
        return -1;
    }

    if (mysql_real_connect(mysql, host, user, pass, name, port ? atoi(port) : 0, socket, CLIENT_FOUND_ROWS) == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "error connecting to database (db said: '%s')", mysql_error(mysql));
        mysql_close(mysql);
        return -1;
    }

    return 0;
}

static int sql_mysql_close(void)
{
    if (mysql) {
        mysql_close(mysql);
        mysql = NULL;
    }

    return 0;
}

static t_sql_res * sql_mysql_query_res(const char * query)
{
    t_sql_res *res;

    if (mysql == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "mysql driver not initilized");
        return NULL;
    }

    if (query == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "got NULL query");
        return NULL;
    }

    if (mysql_query(mysql, query)) {
//        eventlog(eventlog_level_debug, __FUNCTION__, "got error from query (%s)", query);
        return NULL;
    }

    res = mysql_store_result(mysql);
    if (res == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "got error from store result");
        return NULL;
    }

    return res;
}

static int sql_mysql_query(const char * query)
{
    if (mysql == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "mysql driver not initilized");
        return -1;
    }

    if (query == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "got NULL query");
        return -1;
    }

    return mysql_query(mysql, query) == 0 ? 0 : -1;
}

static t_sql_row * sql_mysql_fetch_row(t_sql_res *result)
{
    if (result == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "got NULL result");
        return NULL;
    }

    return mysql_fetch_row((MYSQL_RES *)result);
}

static void sql_mysql_free_result(t_sql_res *result)
{
    if (result == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "got NULL result");
        return;
    }

    mysql_free_result((MYSQL_RES *)result);
}

static unsigned int sql_mysql_num_rows(t_sql_res *result)
{
    if (result == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "got NULL result");
        return 0;
    }

    return mysql_num_rows((MYSQL_RES *)result);
}

static unsigned int sql_mysql_num_fields(t_sql_res *result)
{
    if (result == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "got NULL result");
        return 0;
    }

    return mysql_num_fields((MYSQL_RES *)result);
}

static unsigned int sql_mysql_affected_rows(void)
{
    return mysql_affected_rows(mysql);
}

static t_sql_field * sql_mysql_fetch_fields(t_sql_res *result)
{
    MYSQL_FIELD *fields;
    unsigned fieldno, i;
    t_sql_field *rfields;

    if (result == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "got NULL result");
        return NULL;
    }

    fieldno = mysql_num_fields((MYSQL_RES *)result);
    fields = mysql_fetch_fields((MYSQL_RES *)result);

    rfields = xmalloc(sizeof(t_sql_field) * (fieldno + 1));
    for(i = 0; i < fieldno; i++)
        rfields[i] = fields[i].name;
    rfields[i] = NULL;

    return rfields;
}

static int sql_mysql_free_fields(t_sql_field *fields)
{
    if (fields == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "got NULL fields");
        return -1;
    }

    xfree((void*)fields);
    return 0; /* mysql_free_result() should free the rest properly */
}

static void sql_mysql_escape_string(char *escape, const char *from, int len)
{
    if (mysql == NULL) {
        eventlog(eventlog_level_error, __FUNCTION__, "mysql driver not initilized");
        return;
    }
    mysql_real_escape_string(mysql, escape, from, len);
}

#endif /* WITH_SQL_MYSQL */
1	/*
2	* Copyright (C) 2002,2003 Mihai RUSU (dizzy@rdsnet.ro)
3	*
4	* This program is free software; you can redistribute it and/or
5	* modify it under the terms of the GNU General Public License
6	* as published by the Free Software Foundation; either version 2
7	* of the License, or (at your option) any later version.
8	*
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.
13	*
14	* You should have received a copy of the GNU General Public License
15	* along with this program; if not, write to the Free Software
16	* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17	*/
18
19	#ifdef WITH_SQL_MYSQL
20	#include "common/setup_before.h"
21	#ifdef WIN32
22	#include <windows.h>
23	#include <mysql/mysql.h>
24	#else
25	#include <mysql.h>
26	#endif
27	#include <stdlib.h>
28	#include "common/eventlog.h"
29	#include "common/xalloc.h"
30	#include "storage_sql.h"
31	#include "sql_mysql.h"
32	#include "common/setup_after.h"
33
34	static int sql_mysql_init(const char , const char , const char , const char , const char , const char );
35	static int sql_mysql_close(void);
36	static t_sql_res * sql_mysql_query_res(const char *);
37	static int sql_mysql_query(const char *);
38	static t_sql_row * sql_mysql_fetch_row(t_sql_res *);
39	static void sql_mysql_free_result(t_sql_res *);
40	static unsigned int sql_mysql_num_rows(t_sql_res *);
41	static unsigned int sql_mysql_num_fields(t_sql_res *);
42	static unsigned int sql_mysql_affected_rows(void);
43	static t_sql_field * sql_mysql_fetch_fields(t_sql_res *);
44	static int sql_mysql_free_fields(t_sql_field *);
45	static void sql_mysql_escape_string(char , const char , int);
46
47	t_sql_engine sql_mysql = {
48	sql_mysql_init,
49	sql_mysql_close,
50	sql_mysql_query_res,
51	sql_mysql_query,
52	sql_mysql_fetch_row,
53	sql_mysql_free_result,
54	sql_mysql_num_rows,
55	sql_mysql_num_fields,
56	sql_mysql_affected_rows,
57	sql_mysql_fetch_fields,
58	sql_mysql_free_fields,
59	sql_mysql_escape_string
60	};
61
62	static MYSQL *mysql = NULL;
63
64	static int sql_mysql_init(const char host, const char port, const char socket, const char name, const char user, const char pass)
65	{
66	if (name == NULL \|\| user == NULL) {
67	eventlog(eventlog_level_error, __FUNCTION__, "got NULL parameter");
68	return -1;
69	}
70
71	if ((mysql = mysql_init(NULL)) == NULL) {
72	eventlog(eventlog_level_error, __FUNCTION__, "got error from mysql_init");
73	return -1;
74	}
75
76	if (mysql_real_connect(mysql, host, user, pass, name, port ? atoi(port) : 0, socket, CLIENT_FOUND_ROWS) == NULL) {
77	eventlog(eventlog_level_error, __FUNCTION__, "error connecting to database (db said: '%s')", mysql_error(mysql));
78	mysql_close(mysql);
79	return -1;
80	}
81
82	return 0;
83	}
84
85	static int sql_mysql_close(void)
86	{
87	if (mysql) {
88	mysql_close(mysql);
89	mysql = NULL;
90	}
91
92	return 0;
93	}
94
95	static t_sql_res * sql_mysql_query_res(const char * query)
96	{
97	t_sql_res *res;
98
99	if (mysql == NULL) {
100	eventlog(eventlog_level_error, __FUNCTION__, "mysql driver not initilized");
101	return NULL;
102	}
103
104	if (query == NULL) {
105	eventlog(eventlog_level_error, __FUNCTION__, "got NULL query");
106	return NULL;
107	}
108
109	if (mysql_query(mysql, query)) {
110	// eventlog(eventlog_level_debug, __FUNCTION__, "got error from query (%s)", query);
111	return NULL;
112	}
113
114	res = mysql_store_result(mysql);
115	if (res == NULL) {
116	eventlog(eventlog_level_error, __FUNCTION__, "got error from store result");
117	return NULL;
118	}
119
120	return res;
121	}
122
123	static int sql_mysql_query(const char * query)
124	{
125	if (mysql == NULL) {
126	eventlog(eventlog_level_error, __FUNCTION__, "mysql driver not initilized");
127	return -1;
128	}
129
130	if (query == NULL) {
131	eventlog(eventlog_level_error, __FUNCTION__, "got NULL query");
132	return -1;
133	}
134
135	return mysql_query(mysql, query) == 0 ? 0 : -1;
136	}
137
138	static t_sql_row * sql_mysql_fetch_row(t_sql_res *result)
139	{
140	if (result == NULL) {
141	eventlog(eventlog_level_error, __FUNCTION__, "got NULL result");
142	return NULL;
143	}
144
145	return mysql_fetch_row((MYSQL_RES *)result);
146	}
147
148	static void sql_mysql_free_result(t_sql_res *result)
149	{
150	if (result == NULL) {
151	eventlog(eventlog_level_error, __FUNCTION__, "got NULL result");
152	return;
153	}
154
155	mysql_free_result((MYSQL_RES *)result);
156	}
157
158	static unsigned int sql_mysql_num_rows(t_sql_res *result)
159	{
160	if (result == NULL) {
161	eventlog(eventlog_level_error, __FUNCTION__, "got NULL result");
162	return 0;
163	}
164
165	return mysql_num_rows((MYSQL_RES *)result);
166	}
167
168	static unsigned int sql_mysql_num_fields(t_sql_res *result)
169	{
170	if (result == NULL) {
171	eventlog(eventlog_level_error, __FUNCTION__, "got NULL result");
172	return 0;
173	}
174
175	return mysql_num_fields((MYSQL_RES *)result);
176	}
177
178	static unsigned int sql_mysql_affected_rows(void)
179	{
180	return mysql_affected_rows(mysql);
181	}
182
183	static t_sql_field * sql_mysql_fetch_fields(t_sql_res *result)
184	{
185	MYSQL_FIELD *fields;
186	unsigned fieldno, i;
187	t_sql_field *rfields;
188
189	if (result == NULL) {
190	eventlog(eventlog_level_error, __FUNCTION__, "got NULL result");
191	return NULL;
192	}
193
194	fieldno = mysql_num_fields((MYSQL_RES *)result);
195	fields = mysql_fetch_fields((MYSQL_RES *)result);
196
197	rfields = xmalloc(sizeof(t_sql_field) * (fieldno + 1));
198	for(i = 0; i < fieldno; i++)
199	rfields[i] = fields[i].name;
200	rfields[i] = NULL;
201
202	return rfields;
203	}
204
205	static int sql_mysql_free_fields(t_sql_field *fields)
206	{
207	if (fields == NULL) {
208	eventlog(eventlog_level_error, __FUNCTION__, "got NULL fields");
209	return -1;
210	}
211
212	xfree((void*)fields);
213	return 0; /* mysql_free_result() should free the rest properly */
214	}
215
216	static void sql_mysql_escape_string(char escape, const char from, int len)
217	{
218	if (mysql == NULL) {
219	eventlog(eventlog_level_error, __FUNCTION__, "mysql driver not initilized");
220	return;
221	}
222	mysql_real_escape_string(mysql, escape, from, len);
223	}
224
225	#endif /* WITH_SQL_MYSQL */
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