Пример #1
0
/*
 * Delete a row from the specified table
 * _h: structure representing database connection
 * _k: key names
 * _o: operators
 * _v: values of the keys that must match
 * _n: number of key=value pairs
 */
int db_mysql_delete(db_con_t* _h, db_key_t* _k, db_op_t* _o, db_val_t* _v, int _n)
{
    int off, ret;

    if (!_h) {
        LM_ERR("invalid parameter value\n");
        return -1;
    }

    ret = snprintf(sql_buf, SQL_BUF_LEN, "delete from %s", CON_TABLE(_h));
    if (ret < 0 || ret >= SQL_BUF_LEN) goto error;
    off = ret;

    if (_n) {
        ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, " where ");
        if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
        off += ret;

        ret = db_print_where(_h, sql_buf + off,
                             SQL_BUF_LEN - off, _k, _o, _v, _n, val2str);
        if (ret < 0) return -1;
        off += ret;
    }

    *(sql_buf + off) = '\0';
    if (db_mysql_submit_query(_h, sql_buf) < 0) {
        LM_ERR("error while submitting query\n");
        return -2;
    }
    return 0;

error:
    LM_ERR("error in snprintf\n");
    return -1;
}
Пример #2
0
/*
 * Query table for specified rows
 * _h: structure representing database connection
 * _k: key names
 * _op: operators
 * _v: values of the keys that must match
 * _c: column names to return
 * _n: number of key=values pairs to compare
 * _nc: number of columns to return
 * _o: order by the specified column
 */
int db_mysql_query(db_con_t* _h, db_key_t* _k, db_op_t* _op,
                   db_val_t* _v, db_key_t* _c, int _n, int _nc,
                   db_key_t _o, db_res_t** _r)
{
    int off, ret;

    if (!_h) {
        LM_ERR("invalid parameter value\n");
        return -1;
    }

    if (!_c) {
        ret = snprintf(sql_buf, SQL_BUF_LEN, "select * from %s ", CON_TABLE(_h));
        if (ret < 0 || ret >= SQL_BUF_LEN) goto error;
        off = ret;
    } else {
        ret = snprintf(sql_buf, SQL_BUF_LEN, "select ");
        if (ret < 0 || ret >= SQL_BUF_LEN) goto error;
        off = ret;

        ret = db_print_columns(sql_buf + off, SQL_BUF_LEN - off, _c, _nc);
        if (ret < 0) return -1;
        off += ret;

        ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, "from %s ", CON_TABLE(_h));
        if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
        off += ret;
    }
    if (_n) {
        ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, "where ");
        if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
        off += ret;

        ret = db_print_where(_h, sql_buf + off,
                             SQL_BUF_LEN - off, _k, _op, _v, _n, val2str);
        if (ret < 0) return -1;;
        off += ret;
    }
    if (_o) {
        ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, " order by %s", _o);
        if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
        off += ret;
    }

    *(sql_buf + off) = '\0';
    if (db_mysql_submit_query(_h, sql_buf) < 0) {
        LM_ERR("error while submitting query\n");
        return -2;
    }

    if(_r)
        return db_mysql_store_result(_h, _r);

    return 0;

error:
    LM_ERR("error in snprintf\n");
    return -1;
}
Пример #3
0
int db_do_delete( db_con_t* _h,  db_key_t* _k,  db_op_t* _o,
	 db_val_t* _v,  int _n, int (*val2str) ( db_con_t*,
	 db_val_t*, char*, int*), int (*submit_query)( db_con_t* _h,
	 str* _c),str *query_holder)
{
	int off, ret;
	str  sql_str;
	char sql_buf[SQL_BUF_LEN];

	if (!_h || !val2str || (!submit_query && !query_holder)) {
		LM_ERR("invalid parameter value\n");
		return -1;
	}

	ret = snprintf(sql_buf, SQL_BUF_LEN, "delete from %.*s", CON_TABLE(_h)->len, CON_TABLE(_h)->s);
	if (ret < 0 || ret >= SQL_BUF_LEN) goto error;
	off = ret;

	if (_n) {
		ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, " where ");
		if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
		off += ret;

		ret = db_print_where(_h, sql_buf + off,
				SQL_BUF_LEN - off, _k, _o, _v, _n, val2str);
		if (ret < 0) return -1;
		off += ret;
	}
	if (off + 1 > SQL_BUF_LEN) goto error;
	sql_buf[off] = '\0';
	sql_str.s = sql_buf;
	sql_str.len = off;

	if (submit_query)
	{
		if (submit_query(_h, &sql_str) < 0) {
			LM_ERR("error while submitting query\n");
			return -2;
		}
	}
	else
	{
		query_holder->s = pkg_malloc(off);
		if (!query_holder->s)
		{
			LM_ERR("no more pkg mem\n");
			return -2;
		}
		memcpy(query_holder->s,sql_buf,off);
		query_holder->len = off;
	}
	return 0;

error:
	LM_ERR("error while preparing delete operation\n");
	return -1;
}
Пример #4
0
int db_do_update(const db_con_t* _h, const db_key_t* _k, const db_op_t* _o,
	const db_val_t* _v, const db_key_t* _uk, const db_val_t* _uv, const int _n,
	const int _un, int (*val2str) (const db_con_t*, const db_val_t*, char*, int*),
	int (*submit_query)(const db_con_t* _h, const str* _c))
{
	int off, ret;

	if (!_h || !_uk || !_uv || !_un || !val2str || !submit_query) {
		LM_ERR("invalid parameter value\n");
		goto err_exit;
	}

	ret = snprintf(sql_buf, SQL_BUF_LEN, "update %.*s set ", CON_TABLE(_h)->len, CON_TABLE(_h)->s);
	if (ret < 0 || ret >= SQL_BUF_LEN) goto error;
	off = ret;

	ret = db_print_set(_h, sql_buf + off, SQL_BUF_LEN - off, _uk, _uv, _un, val2str);
	if (ret < 0) goto err_exit;
	off += ret;

	if (_n) {
		ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, " where ");
		if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
		off += ret;

		ret = db_print_where(_h, sql_buf + off, SQL_BUF_LEN - off, _k, _o, _v, _n, val2str);
		if (ret < 0) goto err_exit;
		off += ret;
	}
	if (off + 1 > SQL_BUF_LEN) goto error;
	sql_buf[off] = '\0';
	sql_str.s = sql_buf;
	sql_str.len = off;

	if (submit_query(_h, &sql_str) < 0) {
		LM_ERR("error while submitting query\n");
		CON_OR_RESET(_h);
		return -2;
	}	

	CON_OR_RESET(_h);
	return 0;

error:
	LM_ERR("error while preparing update operation\n");
err_exit:
	CON_OR_RESET(_h);
	return -1;
}
Пример #5
0
int db_do_update(const db1_con_t* _h, const db_key_t* _k, const db_op_t* _o,
	const db_val_t* _v, const db_key_t* _uk, const db_val_t* _uv, const int _n,
	const int _un, int (*val2str) (const db1_con_t*, const db_val_t*, char*, int*),
	int (*submit_query)(const db1_con_t* _h, const str* _c))
{
	int off, ret;

	if (!_h || !_uk || !_uv || !_un || !val2str || !submit_query) {
		LM_ERR("invalid parameter value\n");
		return -1;
	}

	ret = snprintf(sql_buf, sql_buffer_size, "update %s%.*s%s set ",
			CON_TQUOTESZ(_h), CON_TABLE(_h)->len, CON_TABLE(_h)->s, CON_TQUOTESZ(_h));
	if (ret < 0 || ret >= sql_buffer_size) goto error;
	off = ret;

	ret = db_print_set(_h, sql_buf + off, sql_buffer_size - off, _uk, _uv, _un, val2str);
	if (ret < 0) return -1;
	off += ret;

	if (_n) {
		ret = snprintf(sql_buf + off, sql_buffer_size - off, " where ");
		if (ret < 0 || ret >= (sql_buffer_size - off)) goto error;
		off += ret;

		ret = db_print_where(_h, sql_buf + off, sql_buffer_size - off, _k, _o, _v, _n, val2str);
		if (ret < 0) return -1;
		off += ret;
	}
	if (off + 1 > sql_buffer_size) goto error;
	sql_buf[off] = '\0';
	sql_str.s = sql_buf;
	sql_str.len = off;

	if (db_do_submit_query(_h, &sql_str, submit_query) < 0) {
		LM_ERR("error while submitting query\n");
		return -2;
	}
	return 0;

error:
	LM_ERR("error while preparing update operation\n");
	return -1;
}
Пример #6
0
int db_do_query(const db_con_t* _h, const db_key_t* _k, const db_op_t* _op,
	const db_val_t* _v, const db_key_t* _c, const int _n, const int _nc,
	const db_key_t _o, db_res_t** _r, int (*val2str) (const db_con_t*,
	const db_val_t*, char*, int* _len), int (*submit_query)(const db_con_t*,
	const str*), int (*store_result)(const db_con_t* _h, db_res_t** _r))
{
	int off, ret;

	if (!_h || !val2str || !submit_query || (_r && !store_result)) {
		LM_ERR("invalid parameter value\n");
		goto err_exit;
	}

	if (!_c) {
		ret = snprintf(sql_buf, SQL_BUF_LEN, "select * from %.*s ", CON_TABLE(_h)->len, CON_TABLE(_h)->s);
		if (ret < 0 || ret >= SQL_BUF_LEN) goto error;
		off = ret;
	} else {
		ret = snprintf(sql_buf, SQL_BUF_LEN, "select ");
		if (ret < 0 || ret >= SQL_BUF_LEN) goto error;
		off = ret;

		ret = db_print_columns(sql_buf + off, SQL_BUF_LEN - off, _c, _nc);
		if (ret < 0) goto err_exit;
		off += ret;

		ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, "from %.*s ", CON_TABLE(_h)->len, CON_TABLE(_h)->s);
		if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
		off += ret;
	}
	if (_n) {
		ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, "where ");
		if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
		off += ret;

		ret = db_print_where(_h, sql_buf + off,
				SQL_BUF_LEN - off, _k, _op, _v, _n, val2str);
		if (ret < 0) goto err_exit;
		off += ret;
	}
	if (_o) {
		ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, " order by %.*s", _o->len, _o->s);
		if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
		off += ret;
	}
	/*
	 * Null-terminate the string for the postgres driver. Its query function
	 * don't support a length parameter, so they need this for the correct
	 * function of strlen. This zero is not included in the 'str' length.
	 * We need to check the length here, otherwise we could overwrite the buffer
	 * boundaries if off is equal to SQL_BUF_LEN.
	 */
	if (off + 1 >= SQL_BUF_LEN) goto error;
	sql_buf[off + 1] = '\0';
	sql_str.s = sql_buf;
	sql_str.len = off;

	if (submit_query(_h, &sql_str) < 0) {
		LM_ERR("error while submitting query - [%.*s]\n",sql_str.len,sql_str.s);
		goto err_exit;
	}

	if(_r) {
		int tmp = store_result(_h, _r);
		if (tmp < 0) {
			LM_ERR("error while storing result for query [%.*s]\n",sql_str.len,sql_str.s);
			CON_OR_RESET(_h);
			return tmp;
		}
	}

	CON_OR_RESET(_h);
	return 0;

error:
	LM_ERR("error while preparing query\n");
err_exit:
	CON_OR_RESET(_h);
	return -1;
}
Пример #7
0
int db_do_query( db_con_t* _h,  db_key_t* _k,  db_op_t* _op,
	 db_val_t* _v,  db_key_t* _c,  int _n,  int _nc,
	 db_key_t _o, db_res_t** _r, int (*val2str) ( db_con_t*,
	 db_val_t*, char*, int* _len), int (*submit_query)( db_con_t*,
	 str*), int (*store_result)( db_con_t* _h, db_res_t** _r),str *query_holder)
{

	int off, ret;
	str  sql_str;
	char sql_buf[SQL_BUF_LEN];

	if (!_h || !val2str || (!submit_query && !query_holder) || (_r && !store_result)) {
		LM_ERR("invalid parameter value\n");
		return -1;
	}

	if (!_c) {
		ret = snprintf(sql_buf, SQL_BUF_LEN, "select * from %.*s ", CON_TABLE(_h)->len, CON_TABLE(_h)->s);
		if (ret < 0 || ret >= SQL_BUF_LEN) goto error;
		off = ret;
	} else {
		ret = snprintf(sql_buf, SQL_BUF_LEN, "select ");
		if (ret < 0 || ret >= SQL_BUF_LEN) goto error;
		off = ret;

		ret = db_print_columns(sql_buf + off, SQL_BUF_LEN - off, _c, _nc);
		if (ret < 0) return -1;
		off += ret;

		ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, "from %.*s ", CON_TABLE(_h)->len, CON_TABLE(_h)->s);
		if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
		off += ret;
	}
	if (_n) {
		ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, "where ");
		if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
		off += ret;

		ret = db_print_where(_h, sql_buf + off,
				SQL_BUF_LEN - off, _k, _op, _v, _n, val2str);
		if (ret < 0) return -1;;
		off += ret;
	}
	if (_o) {
		ret = snprintf(sql_buf + off, SQL_BUF_LEN - off, " order by %.*s", _o->len, _o->s);
		if (ret < 0 || ret >= (SQL_BUF_LEN - off)) goto error;
		off += ret;
	}
	/*
	 * Null-terminate the string for the postgres driver. Its query function
	 * don't support a length parameter, so they need this for the correct
	 * function of strlen. This zero is not included in the 'str' length.
	 * We need to check the length here, otherwise we could overwrite the buffer
	 * boundaries if off is equal to SQL_BUF_LEN.
	 */
	if (off + 1 >= SQL_BUF_LEN) goto error;
	sql_buf[off + 1] = '\0';
	sql_str.s = sql_buf;
	sql_str.len = off;

	if (submit_query)
	{
		if (submit_query(_h, &sql_str) < 0) 
		{
			LM_ERR("error while submitting query\n");
			return -2;
		}
	}
	else
	{
		query_holder->s = pkg_malloc(off);
		if (!query_holder->s)
		{
			LM_ERR("no more pkg mem\n");
			return -2;
		}
		memcpy(query_holder->s,sql_buf,off);
		query_holder->len = off;
	}

	if(_r) {
		int tmp = store_result(_h, _r);
		if (tmp < 0) {
			LM_ERR("error while storing result\n");
			return tmp;
		}
	}
	return 0;

error:
	LM_ERR("error while preparing query\n");
	return -1;
}
Пример #8
0
static int db_do_query_internal(const db1_con_t* _h, const db_key_t* _k, const db_op_t* _op,
	const db_val_t* _v, const db_key_t* _c, const int _n, const int _nc,
	const db_key_t _o, db1_res_t** _r, int (*val2str) (const db1_con_t*,
	const db_val_t*, char*, int* _len), int (*submit_query)(const db1_con_t*,
	const str*), int (*store_result)(const db1_con_t* _h, db1_res_t** _r), int _l)
{
	int off, ret;

	if (!_h || !val2str || !submit_query || !store_result) {
		LM_ERR("invalid parameter value\n");
		return -1;
	}

	if (!_c) {
		ret = snprintf(sql_buf, sql_buffer_size, "select * from %s%.*s%s ",
				CON_TQUOTESZ(_h), CON_TABLE(_h)->len, CON_TABLE(_h)->s, CON_TQUOTESZ(_h));
		if (ret < 0 || ret >= sql_buffer_size) goto error;
		off = ret;
	} else {
		ret = snprintf(sql_buf, sql_buffer_size, "select ");
		if (ret < 0 || ret >= sql_buffer_size) goto error;
		off = ret;

		ret = db_print_columns(sql_buf + off, sql_buffer_size - off, _c, _nc, CON_TQUOTESZ(_h));
		if (ret < 0) return -1;
		off += ret;

		ret = snprintf(sql_buf + off, sql_buffer_size - off, "from %s%.*s%s ",
				CON_TQUOTESZ(_h), CON_TABLE(_h)->len, CON_TABLE(_h)->s, CON_TQUOTESZ(_h));
		if (ret < 0 || ret >= (sql_buffer_size - off)) goto error;
		off += ret;
	}
	if (_n) {
		ret = snprintf(sql_buf + off, sql_buffer_size - off, "where ");
		if (ret < 0 || ret >= (sql_buffer_size - off)) goto error;
		off += ret;

		ret = db_print_where(_h, sql_buf + off,
				sql_buffer_size - off, _k, _op, _v, _n, val2str);
		if (ret < 0) return -1;;
		off += ret;
	}
	if (_o) {
		ret = snprintf(sql_buf + off, sql_buffer_size - off, " order by %.*s", _o->len, _o->s);
		if (ret < 0 || ret >= (sql_buffer_size - off)) goto error;
		off += ret;
	}
	if (_l) {
		ret = snprintf(sql_buf + off, sql_buffer_size - off, " for update");
		if (ret < 0 || ret >= (sql_buffer_size - off)) goto error;
		off += ret;
	}
	/*
	 * Null-terminate the string for the postgres driver. Its query function
	 * don't support a length parameter, so they need this for the correct
	 * function of strlen. This zero is not included in the 'str' length.
	 * We need to check the length here, otherwise we could overwrite the buffer
	 * boundaries if off is equal to sql_buffer_size.
	 */
	if (off + 1 >= sql_buffer_size) goto error;
	sql_buf[off + 1] = '\0';
	sql_str.s = sql_buf;
	sql_str.len = off;

	if (db_do_submit_query(_h, &sql_str, submit_query) < 0) {
		LM_ERR("error while submitting query\n");
		return -2;
	}

	if(_r) {
		int tmp = store_result(_h, _r);
		if (tmp < 0) {
			LM_ERR("error while storing result");
			return tmp;
		}
	}
	return 0;

error:
	LM_ERR("error while preparing query\n");
	return -1;
}