4.3BSD - /usr/include/arpa/inet.h

   1: /*
   2:  * Copyright (c) 1983 Regents of the University of California.
   3:  * All rights reserved.  The Berkeley software License Agreement
   4:  * specifies the terms and conditions for redistribution.
   5:  *
   6:  *	@(#)inet.h	5.1 (Berkeley) 5/30/85
   7:  */
   8: 
   9: /*
  10:  * External definitions for
  11:  * functions in inet(3N)
  12:  */
  13: unsigned long inet_addr();
  14: char    *inet_ntoa();
  15: struct  in_addr inet_makeaddr();
  16: unsigned long inet_network();

Usage of this include