* Copyright (c) 1983 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
static char sccsid
[] = "@(#)inet_netof.c 5.1 (Berkeley) %G%";
* Return the network number from an internet
* address; handles class a/b/c network #'s.
register u_long i
= ntohl(in
.s_addr
);
return (((i
)&IN_CLASSA_NET
) >> IN_CLASSA_NSHIFT
);
return (((i
)&IN_CLASSB_NET
) >> IN_CLASSB_NSHIFT
);
return (((i
)&IN_CLASSC_NET
) >> IN_CLASSC_NSHIFT
);