diff --git a/src/linux/get_disks_info.cpp b/src/linux/get_disks_info.cpp
index 8faf3170ee996f973784802bf5cf37c2cb5422e0..dffb40f056c8d991af0c724707ac4fe1bddbefd4 100644
--- a/src/linux/get_disks_info.cpp
+++ b/src/linux/get_disks_info.cpp
@@ -27,7 +27,7 @@
 #include "agent/linux/get_disks_info.h"
 
 
-void get_scsi_disks(std::list<disk_t>& disks) {
+void get_scsi_disks(std::list<disk_t>& disks) {  // NOLINT(runtime/references)
 
     struct udev *udev;
     struct udev_enumerate *enumerate;
@@ -108,7 +108,7 @@ void get_scsi_disks(std::list<disk_t>& disks) {
 }
 
 
-void get_disks_info(std::list<disk_t>& disks) {
+void get_disks_info(std::list<disk_t>& disks) {  // NOLINT(runtime/references)
     get_scsi_disks(disks);
 
     if (disks.empty()) {
diff --git a/src/linux/inventory.cpp b/src/linux/inventory.cpp
index 7715079ab70fcc47c706facfffe0f11a5308ffd0..95162517dee5f5680a2a1a9d8b3f74c1416028b8 100644
--- a/src/linux/inventory.cpp
+++ b/src/linux/inventory.cpp
@@ -22,9 +22,9 @@
 #include <list>
 #include "agent/linux/inventory.h"
 
-Json::Value get_inventory(){
+Json::Value get_inventory() {
 
-	Json::Value inv;
+    Json::Value inv;
 
     // os info
 
diff --git a/src/linux/open_file.cpp b/src/linux/open_file.cpp
index 8585b2fc1b06f57b3ca5873e6c13bb121a9ae7bf..10bcd1de77d261255c3edb0c7163943bb914dc13 100644
--- a/src/linux/open_file.cpp
+++ b/src/linux/open_file.cpp
@@ -1,10 +1,31 @@
+/* Copyright (C) 2016 Centro de Computacao Cientifica e Software Livre
+ * Departamento de Informatica - Universidade Federal do Parana - C3SL/UFPR
+ *
+ * This file is part of simmc-agent
+ *
+ * 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 "agent/linux/open_file.h"
 
-int open_file(std::string name, std::ifstream& fstream){
-		fstream.open(name);
-		if (fstream.is_open())
-			return 1;
-		else
-			return 0;
+int open_file(std::string name, std::ifstream& fstream) {
+        fstream.open(name);
+        if (fstream.is_open())
+            return 1;
+        else
+            return 0;
 }