usr/src/include/arpa/inet.h

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 *
 *      @(#)inet.h      5.1 (Berkeley) %G%
 */

/*
 * External definitions for
 * functions in inet(3N)
 */
unsigned long inet_addr();
char    *inet_ntoa();
struct  in_addr inet_makeaddr();
unsigned long inet_network();