snmp plugin: Fix off-by-one array access.

diff --git a/src/snmp.c b/src/snmp.c
index 7d340d1..362f175 100644 (file)
--- a/src/snmp.c
+++ b/src/snmp.c
@@ -1341,7 +1341,7 @@ static int csnmp_read_table (host_definition_t *host, data_definition_t *data)
     for (vb = res->variables, i = 0; (vb != NULL); vb = vb->next_variable, i++)
     {
       /* Calculate value index from todo list */
-      while (!oid_list_todo[i] && (i < oid_list_len))
+      while ((i < oid_list_len) && !oid_list_todo[i])
         i++;
 
       /* An instance is configured and the res variable we process is the