count6bits.c revision 145510 
1/*	$NetBSD$	*/
2
3/*
4 * Copyright (C) 1993-2001 by Darren Reed.
5 *
6 * See the IPFILTER.LICENCE file for details on licencing.
7 *
8 * Id: count6bits.c,v 1.4 2001/06/09 17:09:23 darrenr Exp
9 */
10
11#include "ipf.h"
12
13
14int count6bits(msk)
15u_32_t *msk;
16{
17	int i = 0, k;
18	u_32_t j;
19
20	for (k = 3; k >= 0; k--)
21		if (msk[k] == 0xffffffff)
22			i += 32;
23		else {
24			for (j = msk[k]; j; j <<= 1)
25				if (j & 0x80000000)
26					i++;
27		}
28	return i;
29}
30