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