diff --git a/src/snmp.c b/src/snmp.c
index 3ccf60c3fd8ff638ab90aaa21f8eafcbb5223261..abeda436795427f9597e281c30ce1e8ae656b519 100644 (file)
--- a/src/snmp.c
+++ b/src/snmp.c
**/
#include "collectd.h"
+
#include "common.h"
#include "plugin.h"
#include "utils_complain.h"
-#include <pthread.h>
-
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
{
char oid_str[MAX_OID_LEN][16];
char *oid_str_ptr[MAX_OID_LEN];
- size_t i;
- for (i = 0; i < o->oid_len; i++)
+ for (size_t i = 0; i < o->oid_len; i++)
{
ssnprintf (oid_str[i], sizeof (oid_str[i]), "%lu", (unsigned long) o->oid[i]);
oid_str_ptr[i] = oid_str[i];
static int csnmp_config_add_data_values (data_definition_t *dd, oconfig_item_t *ci)
{
- int i;
-
if (ci->values_num < 1)
{
WARNING ("snmp plugin: `Values' needs at least one argument.");
return (-1);
}
- for (i = 0; i < ci->values_num; i++)
+ for (int i = 0; i < ci->values_num; i++)
if (ci->values[i].type != OCONFIG_TYPE_STRING)
{
WARNING ("snmp plugin: `Values' needs only string argument.");
@@ -310,12 +306,12 @@ static int csnmp_config_add_data_values (data_definition_t *dd, oconfig_item_t *
sfree (dd->values);
dd->values_len = 0;
- dd->values = (oid_t *) malloc (sizeof (oid_t) * ci->values_num);
+ dd->values = malloc (sizeof (*dd->values) * ci->values_num);
if (dd->values == NULL)
return (-1);
dd->values_len = (size_t) ci->values_num;
- for (i = 0; i < ci->values_num; i++)
+ for (int i = 0; i < ci->values_num; i++)
{
dd->values[i].oid_len = MAX_OID_LEN;
@@ -336,12 +332,10 @@ static int csnmp_config_add_data_values (data_definition_t *dd, oconfig_item_t *
static int csnmp_config_add_data_blacklist(data_definition_t *dd, oconfig_item_t *ci)
{
- int i;
-
if (ci->values_num < 1)
return (0);
- for (i = 0; i < ci->values_num; i++)
+ for (int i = 0; i < ci->values_num; i++)
{
if (ci->values[i].type != OCONFIG_TYPE_STRING)
{
@@ -353,7 +347,7 @@ static int csnmp_config_add_data_blacklist(data_definition_t *dd, oconfig_item_t
dd->ignores_len = 0;
dd->ignores = NULL;
- for (i = 0; i < ci->values_num; ++i)
+ for (int i = 0; i < ci->values_num; ++i)
{
if (strarray_add(&(dd->ignores), &(dd->ignores_len), ci->values[i].value.string) != 0)
{
{
data_definition_t *dd;
int status = 0;
- int i;
- dd = (data_definition_t *) malloc (sizeof (data_definition_t));
+ dd = calloc (1, sizeof (*dd));
if (dd == NULL)
return (-1);
- memset (dd, '\0', sizeof (data_definition_t));
status = cf_util_get_string(ci, &dd->name);
if (status != 0)
dd->scale = 1.0;
dd->shift = 0.0;
- for (i = 0; i < ci->children_num; i++)
+ for (int i = 0; i < ci->children_num; i++)
{
oconfig_item_t *option = ci->children + i;
data_definition_t *data;
data_definition_t **data_list;
int data_list_len;
- int i;
if (ci->values_num < 1)
{
return (-1);
}
- for (i = 0; i < ci->values_num; i++)
+ for (int i = 0; i < ci->values_num; i++)
if (ci->values[i].type != OCONFIG_TYPE_STRING)
{
WARNING ("snmp plugin: All arguments to `Collect' must be strings.");
}
data_list_len = host->data_list_len + ci->values_num;
- data_list = (data_definition_t **) realloc (host->data_list,
+ data_list = realloc (host->data_list,
sizeof (data_definition_t *) * data_list_len);
if (data_list == NULL)
return (-1);
host->data_list = data_list;
- for (i = 0; i < ci->values_num; i++)
+ for (int i = 0; i < ci->values_num; i++)
{
for (data = data_head; data != NULL; data = data->next)
if (strcasecmp (ci->values[i].value.string, data->name) == 0)
{
host_definition_t *hd;
int status = 0;
- int i;
/* Registration stuff. */
char cb_name[DATA_MAX_NAME_LEN];
- user_data_t cb_data;
- hd = (host_definition_t *) malloc (sizeof (host_definition_t));
+ hd = calloc (1, sizeof (*hd));
if (hd == NULL)
return (-1);
- memset (hd, '\0', sizeof (host_definition_t));
hd->version = 2;
C_COMPLAIN_INIT (&hd->complaint);
hd->sess_handle = NULL;
hd->interval = 0;
- for (i = 0; i < ci->children_num; i++)
+ for (int i = 0; i < ci->children_num; i++)
{
oconfig_item_t *option = ci->children + i;
status = 0;
ssnprintf (cb_name, sizeof (cb_name), "snmp-%s", hd->name);
- memset (&cb_data, 0, sizeof (cb_data));
- cb_data.data = hd;
- cb_data.free_func = csnmp_host_definition_destroy;
+ user_data_t ud = {
+ .data = hd,
+ .free_func = csnmp_host_definition_destroy
+ };
status = plugin_register_complex_read (/* group = */ NULL, cb_name,
- csnmp_read_host, hd->interval, /* user_data = */ &cb_data);
+ csnmp_read_host, hd->interval, /* user_data = */ &ud);
if (status != 0)
{
ERROR ("snmp plugin: Registering complex read function failed.");
static int csnmp_config (oconfig_item_t *ci)
{
- int i;
-
call_snmp_init_once ();
- for (i = 0; i < ci->children_num; i++)
+ for (int i = 0; i < ci->children_num; i++)
{
oconfig_item_t *child = ci->children + i;
if (strcasecmp ("Data", child->key) == 0)
}
else
{
- char oid_buffer[1024];
+ char oid_buffer[1024] = { 0 };
- memset (oid_buffer, 0, sizeof (oid_buffer));
snprint_objid (oid_buffer, sizeof (oid_buffer) - 1,
vl->name, vl->name_length);
{
char *buffer_ptr;
size_t buffer_free;
- size_t i;
dst[0] = 0;
buffer_ptr = dst;
buffer_free = dst_size;
- for (i = 0; i < vb->val_len; i++)
+ for (size_t i = 0; i < vb->val_len; i++)
{
int status;
{
char *src;
size_t num_chars;
- size_t i;
if (vb->type == ASN_OCTET_STR)
src = (char *) vb->val.string;
if (num_chars > vb->val_len)
num_chars = vb->val_len;
- for (i = 0; i < num_chars; i++)
+ for (size_t i = 0; i < num_chars; i++)
{
/* Check for control characters. */
if ((unsigned char)src[i] < 32)
struct variable_list *vb;
oid_t vb_name;
int status;
- uint32_t i;
uint32_t is_matched;
/* Set vb on the last variable */
csnmp_oid_init (&vb_name, vb->name, vb->name_length);
- il = malloc (sizeof (*il));
+ il = calloc (1, sizeof (*il));
if (il == NULL)
{
- ERROR ("snmp plugin: malloc failed.");
+ ERROR ("snmp plugin: calloc failed.");
return (-1);
}
- memset (il, 0, sizeof (*il));
il->next = NULL;
status = csnmp_oid_suffix (&il->suffix, &vb_name, &dd->instance.oid);
csnmp_strvbcopy (il->instance, vb, sizeof (il->instance));
is_matched = 0;
- for (i = 0; i < dd->ignores_len; i++)
+ for (uint32_t i = 0; i < dd->ignores_len; i++)
{
status = fnmatch(dd->ignores[i], il->instance, 0);
if (status == 0)
@@ -1281,7 +1263,6 @@ static int csnmp_dispatch_table (host_definition_t *host, data_definition_t *dat
vl.interval = host->interval;
have_more = 1;
- memset (¤t_suffix, 0, sizeof (current_suffix));
while (have_more)
{
_Bool suffix_skipped = 0;
@@ -1380,8 +1361,12 @@ static int csnmp_dispatch_table (host_definition_t *host, data_definition_t *dat
for (i = 0; i < data->values_len; i++)
vl.values[i] = value_table_ptr[i]->value;
- /* If we get here `vl.type_instance' and all `vl.values' have been set */
- plugin_dispatch_values (&vl);
+ /* If we get here `vl.type_instance' and all `vl.values' have been set
+ * vl.type_instance can be empty, i.e. a blank port description on a
+ * switch if you're using IF-MIB::ifDescr as Instance.
+ */
+ if (vl.type_instance[0] != '\0')
+ plugin_dispatch_values (&vl);
if (instance_list != NULL)
instance_list_ptr = instance_list_ptr->next;
@@ -1607,14 +1592,13 @@ static int csnmp_read_table (host_definition_t *host, data_definition_t *data)
continue;
}
- vt = malloc (sizeof (*vt));
+ vt = calloc (1, sizeof (*vt));
if (vt == NULL)
{
- ERROR ("snmp plugin: malloc failed.");
+ ERROR ("snmp plugin: calloc failed.");
status = -1;
break;
}
- memset (vt, 0, sizeof (*vt));
vt->value = csnmp_value_list_to_value (vb, ds->ds[i].type,
data->scale, data->shift, host->name, data->name);
@@ -1677,7 +1661,7 @@ static int csnmp_read_table (host_definition_t *host, data_definition_t *data)
static int csnmp_read_value (host_definition_t *host, data_definition_t *data)
{
struct snmp_pdu *req;
- struct snmp_pdu *res;
+ struct snmp_pdu *res = NULL;
struct variable_list *vb;
const data_set_t *ds;
@@ -1710,7 +1694,7 @@ static int csnmp_read_value (host_definition_t *host, data_definition_t *data)
}
vl.values_len = ds->ds_num;
- vl.values = (value_t *) malloc (sizeof (value_t) * vl.values_len);
+ vl.values = malloc (sizeof (*vl.values) * vl.values_len);
if (vl.values == NULL)
return (-1);
for (i = 0; i < vl.values_len; i++)
@@ -1739,7 +1723,6 @@ static int csnmp_read_value (host_definition_t *host, data_definition_t *data)
for (i = 0; i < data->values_len; i++)
snmp_add_null_var (req, data->values[i].oid, data->values[i].oid_len);
- res = NULL;
status = snmp_sess_synch_response (host->sess_handle, req, &res);
if ((status != STAT_SUCCESS) || (res == NULL))
@@ -1752,7 +1735,6 @@ static int csnmp_read_value (host_definition_t *host, data_definition_t *data)
if (res != NULL)
snmp_free_pdu (res);
- res = NULL;
sfree (errstr);
sfree (vl.values);
@@ -1778,9 +1760,7 @@ static int csnmp_read_value (host_definition_t *host, data_definition_t *data)
data->scale, data->shift, host->name, data->name);
} /* for (res->variables) */
- if (res != NULL)
- snmp_free_pdu (res);
- res = NULL;
+ snmp_free_pdu (res);
DEBUG ("snmp plugin: -> plugin_dispatch_values (&vl);");
plugin_dispatch_values (&vl);