MENT-1019.

Audit-plugin related fixes.

sql/sql_audit.h

@@ -155,7 +155,7 @@ void mysql_audit_general(THD *thd, uint event_subtype,
   DBUG_ENTER("mysql_audit_general");
   if (mysql_audit_general_enabled())
   {
-    char user_buff[MAX_USER_HOST_SIZE];
+    char user_buff[MAX_USER_HOST_SIZE+1];
     mysql_event_general event;
 
     event.event_subclass= event_subtype;

sql/sql_prepare.cc

@@ -3442,6 +3442,11 @@ static void mysql_stmt_execute_common(THD *thd,
                                        stmt_id == LAST_STMT_ID, read_types))
   {
     my_error(ER_MALFORMED_PACKET, MYF(0));
+    /*
+      Let's set the thd->query_string so the audit plugin
+      can report the executed query that failed.
+    */
+    thd->set_query_inner(stmt->query_string);
     DBUG_VOID_RETURN;
   }
 

tests/mysql_client_test.c

@@ -5256,10 +5256,10 @@ static void test_manual_sample()
 {
   unsigned int param_count;
   MYSQL_STMT   *stmt;
-  short        small_data;
-  int          int_data;
+  short        small_data= 1;
+  int          int_data= 2;
   int          rc;
-  char         str_data[50];
+  char         str_data[50]= "std_data";
   ulonglong    affected_rows;
   MYSQL_BIND   my_bind[3];
   my_bool      is_null;