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	sysadm	1.1	/*
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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