usr/src/lib/libc/net/inet_lnaof.c

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)inet_lnaof.c	5.6 (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */

#include <sys/types.h>
#include <netinet/in.h>

/*
 * Return the local network address portion of an
 * internet address; handles class a/b/c network
 * number formats.
 */
u_long
inet_lnaof(in)
	struct in_addr in;
{
	register u_long i = ntohl(in.s_addr);

	if (IN_CLASSA(i))
		return ((i)&IN_CLASSA_HOST);
	else if (IN_CLASSB(i))
		return ((i)&IN_CLASSB_HOST);
	else
		return ((i)&IN_CLASSC_HOST);
}
Commit	Line	Data
	1	/*
	2	* Copyright (c) 1983 Regents of the University of California.
	3	* All rights reserved.
	4	*
	5	* %sccs.include.redist.c%
	6	*/
	7
	8	#if defined(LIBC_SCCS) && !defined(lint)
	9	static char sccsid[] = "@(#)inet_lnaof.c 5.6 (Berkeley) %G%";
	10	#endif /* LIBC_SCCS and not lint */
	11
	12	#include <sys/types.h>
	13	#include <netinet/in.h>
	14
	15	/*
	16	* Return the local network address portion of an
	17	* internet address; handles class a/b/c network
	18	* number formats.
	19	*/
	20	u_long
	21	inet_lnaof(in)
	22	struct in_addr in;
	23	{
	24	register u_long i = ntohl(in.s_addr);
	25
	26	if (IN_CLASSA(i))
	27	return ((i)&IN_CLASSA_HOST);
	28	else if (IN_CLASSB(i))
	29	return ((i)&IN_CLASSB_HOST);
	30	else
	31	return ((i)&IN_CLASSC_HOST);
	32	}