1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
|
/*
** Zabbix
** Copyright (C) 2001-2014 Zabbix SIA
**
** 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**/
#include "checks_db.h"
#include "zbxodbc.h"
#include "log.h"
/******************************************************************************
* *
* Function: get_value_db *
* *
* Purpose: retrieve data from database *
* *
* Parameters: item - item we are interested in *
* *
* Return value: SUCCEED - data successfully retrieved and stored in result *
* NOTSUPPORTED - requested item is not supported *
* *
* Author: Eugene Grigorjev *
* *
* Comments: *
* *
******************************************************************************/
int get_value_db(DC_ITEM *item, AGENT_RESULT *result)
{
const char *__function_name = "get_value_db";
ZBX_ODBC_DBH dbh;
ZBX_ODBC_ROW row;
AGENT_REQUEST request;
int ret = NOTSUPPORTED;
zabbix_log(LOG_LEVEL_DEBUG, "In %s() key_orig:'%s'", __function_name, item->key_orig);
init_request(&request);
if (SUCCEED != parse_item_key(item->key, &request))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Key is badly formatted."));
goto out;
}
if (0 != strcmp(request.key, "db.odbc.select"))
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Item key is not supported."));
goto out;
}
if (2 != request.nparam)
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "Invalid number of parameters."));
goto out;
}
if (SUCCEED == odbc_DBconnect(&dbh, request.params[1], item->username, item->password, CONFIG_TIMEOUT))
{
if (NULL != odbc_DBselect(&dbh, item->params))
{
if (NULL != (row = odbc_DBfetch(&dbh)))
{
if (NULL == row[0])
{
SET_MSG_RESULT(result, zbx_strdup(NULL, "SQL query returned NULL value."));
}
else if (SUCCEED == set_result_type(result, item->value_type, item->data_type, row[0]))
{
ret = SUCCEED;
}
}
else
{
const char *last_error = get_last_odbc_strerror();
if ('\0' != *last_error)
SET_MSG_RESULT(result, zbx_strdup(NULL, last_error));
else
SET_MSG_RESULT(result, zbx_strdup(NULL, "SQL query returned empty result."));
}
}
else
SET_MSG_RESULT(result, zbx_strdup(NULL, get_last_odbc_strerror()));
odbc_DBclose(&dbh);
}
else
SET_MSG_RESULT(result, zbx_strdup(NULL, get_last_odbc_strerror()));
out:
free_request(&request);
zabbix_log(LOG_LEVEL_DEBUG, "End of %s():%s", __function_name, zbx_result_string(ret));
return ret;
}
|
