diff --git a/libnozzle/libnozzle.h b/libnozzle/libnozzle.h
index 42dfa354..a57915a7 100644
--- a/libnozzle/libnozzle.h
+++ b/libnozzle/libnozzle.h
@@ -1,146 +1,144 @@
 /*
  * Copyright (C) 2010-2018 Red Hat, Inc.  All rights reserved.
  *
  * Author: Fabio M. Di Nitto <fabbione@kronosnet.org>
  *
  * This software licensed under GPL-2.0+, LGPL-2.0+
  */
 
 #ifndef __LIBNOZZLE_H__
 #define __LIBNOZZLE_H__
 
 #include <sys/types.h>
 #include <net/if.h>
 
 /**
  *
  * @file libnozzle.h
  * @brief tap interfaces management API include file
  * @copyright Copyright (C) 2010-2017 Red Hat, Inc.  All rights reserved.
  *
  * nozzle is a commodity library to manage tap (ethernet) interfaces
  */
 
 typedef struct nozzle_iface *nozzle_t;
 
 /**
  * nozzle_open
  * @brief create a new tap device on the system.
  *
  * devname - pointer to device name of at least size IFNAMSIZ.
  *           if the dev strlen is 0, then the system will assign a name automatically.
  *           if a string is specified, the system will try to create a device with
  *           the specified name.
  *           NOTE: on FreeBSD the tap device names can only be tapX where X is a
  *           number from 0 to 255. On Linux such limitation does not apply.
  *           The name must be unique to the system. If an interface with the same
  *           name is already configured on the system, an error will be returned.
  *
  * devname_size - lenght of the buffer provided in dev (has to be at least IFNAMSIZ).
  *
  * updownpath - nozzle supports the typical filesystem structure to execute
  *              actions for: down.d  post-down.d  pre-up.d  up.d
  *              in the form of:
  *              updownpath/<action>/<interface_name>
  *              updownpath specifies where to find those directories on the
  *              filesystem and it must be an absolute path.
  *
  * @return
  * nozzle_open returns
  * a pointer to a nozzle struct on success
  * NULL on error and errno is set.
  */
 
 nozzle_t nozzle_open(char *devname, size_t devname_size, const char *updownpath);
 
 /**
  * nozzle_close
  * @brief deconfigure and destroy a nozzle device
  *
  * nozzle - pointer to the nozzle struct to destroy
  *
  * error_down - pointers to string to record errors from executing down.d
  *              when configured. The string is malloc'ed, the caller needs to free those
  *              buffers.
  *
  * error_postdown - pointers to string to record errors from executing post-down.d
  *                  when configured. The string is malloc'ed, the caller needs to free
  *                  those buffers.
  *
  * @return
  * 0 on success
  * -1 on error and error is set.
  * error_down / error_postdown are set to NULL if execution of external scripts
  * is sucessful
  * error_down / error_postdown will contain strings recording the execution error.
  */
 
 int nozzle_close(nozzle_t nozzle, char **error_down, char **error_postdown);
 
 /**
  * nozzle_set_up
  * @brief equivalent of ifconfig up, executes pre-up.d up.d if configured
  *
  * nozzle - pointer to the nozzle struct
  *
  * error_preup - pointers to string to record errors from executing pre-up.d
  *               when configured. The string is malloc'ed, the caller needs to free those
  *               buffers.
  *
  * error_up - pointers to string to record errors from executing up.d
  *            when configured. The string is malloc'ed, the caller needs to free those
  *            buffers.
  *
  * @return
  * 0 on success
  * -1 on error and error is set.
  * error_preup / error_up are set to NULL if execution of external scripts
  * is sucessful
  * error_preup / error_up will contain strings recording the execution error.
  */
 
 int nozzle_set_up(nozzle_t nozzle, char **error_preup, char **error_up);
 
 /**
  * nozzle_set_down
  * @brief equivalent of ifconfig down, executes down.d post-down.d
  *
  * nozzle - pointer to the nozzle struct
  *
  * error_down - pointers to string to record errors from executing down.d
  *              when configured. The string is malloc'ed, the caller needs to free those
  *              buffers.
  *
  * error_postdown - pointers to string to record errors from executing post-down.d
  *                  when configured. The string is malloc'ed, the caller needs to free
  *                  those buffers.
  *
  * @return
  * 0 on success
  * -1 on error and error is set.
  * error_down / error_postdown are set to NULL if execution of external scripts
  * is sucessful
  * error_down / error_postdown will contain strings recording the execution error.
  */
 
 int nozzle_set_down(nozzle_t nozzle, char **error_down, char **error_postdown);
 
-nozzle_t nozzle_find(char *dev, size_t dev_size);
-
-int nozzle_get_fd(const nozzle_t nozzle);
-
-const char *nozzle_get_name(const nozzle_t nozzle);
+int nozzle_add_ip(nozzle_t nozzle, const char *ip_addr, const char *prefix, char **error_string);
+int nozzle_del_ip(nozzle_t nozzle, const char *ip_addr, const char *prefix, char **error_string);
+int nozzle_get_ips(const nozzle_t nozzle, char **ip_addr_list, int *entries);
 
 int nozzle_get_mtu(const nozzle_t nozzle);
 int nozzle_set_mtu(nozzle_t nozzle, const int mtu);
 int nozzle_reset_mtu(nozzle_t nozzle);
 
 int nozzle_get_mac(const nozzle_t nozzle, char **ether_addr);
 int nozzle_set_mac(nozzle_t nozzle, const char *ether_addr);
 int nozzle_reset_mac(nozzle_t nozzle);
 
-int nozzle_add_ip(nozzle_t nozzle, const char *ip_addr, const char *prefix, char **error_string);
-int nozzle_del_ip(nozzle_t nozzle, const char *ip_addr, const char *prefix, char **error_string);
-int nozzle_get_ips(const nozzle_t nozzle, char **ip_addr_list, int *entries);
+nozzle_t nozzle_find(char *dev, size_t dev_size);
+int nozzle_get_fd(const nozzle_t nozzle);
+const char *nozzle_get_name(const nozzle_t nozzle);
 
 #endif