diff --git a/src/snmp.c b/src/snmp.c
index 8673df199e9ffe135993986a24f5cc1e1607b50e..6f11af045a7f7627b1e7feadf40e100ebb9f76aa 100644 (file)
--- a/src/snmp.c
+++ b/src/snmp.c
@@ -198,7 +198,8 @@ static int csnmp_config_add_data_instance (data_definition_t *dd, oconfig_item_t
else
{
/* Instance is a simple string */
- strncpy (dd->instance.string, ci->values[0].value.string, DATA_MAX_NAME_LEN - 1);
+ sstrncpy (dd->instance.string, ci->values[0].value.string,
+ sizeof (dd->instance.string));
}
return (0);
static void csnmp_host_close_session (host_definition_t *host)
{
- int status;
-
if (host->sess_handle == NULL)
return;
- status = snmp_sess_close (host->sess_handle);
-
- if (status != 0)
- {
- char *errstr = NULL;
-
- snmp_sess_error (host->sess_handle, NULL, NULL, &errstr);
-
- ERROR ("snmp plugin: host %s: snmp_sess_close failed: %s",
- host->name, (errstr == NULL) ? "Unknown problem" : errstr);
- sfree (errstr);
- }
-
+ snmp_sess_close (host->sess_handle);
host->sess_handle = NULL;
} /* void csnmp_host_close_session */
if (instance_len > vb->val_len)
instance_len = vb->val_len;
- strncpy (il->instance, (char *) ((vb->type == ASN_OCTET_STR)
+ sstrncpy (il->instance, (char *) ((vb->type == ASN_OCTET_STR)
? vb->val.string
: vb->val.bitstring),
instance_len);
- il->instance[instance_len] = '\0';
for (ptr = il->instance; *ptr != '\0'; ptr++)
{
else
{
value_t val = csnmp_value_list_to_value (vb, DS_TYPE_COUNTER, 1.0, 0.0);
- snprintf (il->instance, sizeof (il->instance),
+ ssnprintf (il->instance, sizeof (il->instance),
"%llu", val.counter);
}
- il->instance[sizeof (il->instance) - 1] = '\0';
/* TODO: Debugging output */
@@ -921,8 +906,7 @@ static int csnmp_dispatch_table (host_definition_t *host, data_definition_t *dat
return (-1);
}
- strncpy (vl.host, host->name, sizeof (vl.host));
- vl.host[sizeof (vl.host) - 1] = '\0';
+ sstrncpy (vl.host, host->name, sizeof (vl.host));
strcpy (vl.plugin, "snmp");
vl.interval = host->interval;
@@ -986,30 +970,28 @@ static int csnmp_dispatch_table (host_definition_t *host, data_definition_t *dat
|| (instance_list_ptr->subid == value_table_ptr[0]->subid));
#endif
+ sstrncpy (vl.type, data->type, sizeof (vl.type));
+
{
char temp[DATA_MAX_NAME_LEN];
if (instance_list_ptr == NULL)
- snprintf (temp, sizeof (temp), "%u",
- (uint32_t) subid);
+ ssnprintf (temp, sizeof (temp), "%u", (uint32_t) subid);
else
- strncpy (temp, instance_list_ptr->instance,
- sizeof (temp));
- temp[sizeof (temp) - 1] = '\0';
+ sstrncpy (temp, instance_list_ptr->instance, sizeof (temp));
if (data->instance_prefix == NULL)
- strncpy (vl.type_instance, temp, sizeof (vl.type_instance));
+ sstrncpy (vl.type_instance, temp, sizeof (vl.type_instance));
else
- snprintf (vl.type_instance, sizeof (vl.type_instance), "%s%s",
+ ssnprintf (vl.type_instance, sizeof (vl.type_instance), "%s%s",
data->instance_prefix, temp);
- vl.type_instance[sizeof (vl.type_instance) - 1] = '\0';
}
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 (data->type, &vl);
+ plugin_dispatch_values (&vl);
subid++;
} /* while (have_more != 0) */
@@ -1107,15 +1089,22 @@ static int csnmp_read_table (host_definition_t *host, data_definition_t *data)
for (i = 0; i < oid_list_len; i++)
snmp_add_null_var (req, oid_list[i].oid, oid_list[i].oid_len);
+ res = NULL;
status = snmp_sess_synch_response (host->sess_handle, req, &res);
- if (status != STAT_SUCCESS)
+ if ((status != STAT_SUCCESS) || (res == NULL))
{
char *errstr = NULL;
snmp_sess_error (host->sess_handle, NULL, NULL, &errstr);
ERROR ("snmp plugin: host %s: snmp_sess_synch_response failed: %s",
host->name, (errstr == NULL) ? "Unknown problem" : errstr);
+
+ if (res != NULL)
+ snmp_free_pdu (res);
+ res = NULL;
+
+ sfree (errstr);
csnmp_host_close_session (host);
status = -1;
@@ -1127,6 +1116,10 @@ static int csnmp_read_table (host_definition_t *host, data_definition_t *data)
vb = res->variables;
if (vb == NULL)
{
+ if (res != NULL)
+ snmp_free_pdu (res);
+ res = NULL;
+
status = -1;
break;
}
@@ -1134,7 +1127,13 @@ static int csnmp_read_table (host_definition_t *host, data_definition_t *data)
/* Check if all values (and possibly the instance) have left their
* subtree */
if (csnmp_check_res_left_subtree (host, data, res) != 0)
+ {
+ if (res != NULL)
+ snmp_free_pdu (res);
+ res = NULL;
+
break;
+ }
/* if an instance-OID is configured.. */
if (data->instance.oid.oid_len > 0)
@@ -1296,11 +1295,10 @@ static int csnmp_read_value (host_definition_t *host, data_definition_t *data)
vl.values[i].gauge = NAN;
}
- strncpy (vl.host, host->name, sizeof (vl.host));
- vl.host[sizeof (vl.host) - 1] = '\0';
+ sstrncpy (vl.host, host->name, sizeof (vl.host));
strcpy (vl.plugin, "snmp");
- strncpy (vl.type_instance, data->instance.string, sizeof (vl.type_instance));
- vl.type_instance[sizeof (vl.type_instance) - 1] = '\0';
+ sstrncpy (vl.type, data->type, sizeof (vl.type));
+ sstrncpy (vl.type_instance, data->instance.string, sizeof (vl.type_instance));
vl.interval = host->interval;
@@ -1314,17 +1312,24 @@ 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)
+ if ((status != STAT_SUCCESS) || (res == NULL))
{
char *errstr = NULL;
snmp_sess_error (host->sess_handle, NULL, NULL, &errstr);
ERROR ("snmp plugin: host %s: snmp_sess_synch_response failed: %s",
host->name, (errstr == NULL) ? "Unknown problem" : errstr);
- csnmp_host_close_session (host);
+
+ if (res != NULL)
+ snmp_free_pdu (res);
+ res = NULL;
+
sfree (errstr);
+ csnmp_host_close_session (host);
return (-1);
}
@@ -1347,10 +1352,12 @@ static int csnmp_read_value (host_definition_t *host, data_definition_t *data)
data->scale, data->shift);
} /* for (res->variables) */
- snmp_free_pdu (res);
+ if (res != NULL)
+ snmp_free_pdu (res);
+ res = NULL;
- DEBUG ("snmp plugin: -> plugin_dispatch_values (%s, &vl);", data->type);
- plugin_dispatch_values (data->type, &vl);
+ DEBUG ("snmp plugin: -> plugin_dispatch_values (&vl);");
+ plugin_dispatch_values (&vl);
sfree (vl.values);
return (0);