#include <string.h> /* C strings library */
#include <errno.h> /* error definitions and routines */
#include <sys/socket.h> /* socket constants, types and functions */
-#include <arpa/inet.h>
-#include <netinet/in.h>
-#include <netdb.h>
+#include <arpa/inet.h> /* IP addresses conversion utilities */
+#include <netdb.h> /* C resolver library */
#include "macros.h"
/**************************************************************************