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/* $FreeBSD$ */
#include "ipf.h"
int ntomask(v, nbits, ap)
int v, nbits;
u_32_t *ap;
{
u_32_t mask;
if (nbits < 0)
return -1;
switch (v)
{
case 4 :
if (nbits > 32 || use_inet6 != 0)
return -1;
if (nbits == 0) {
mask = 0;
} else {
mask = 0xffffffff;
mask <<= (32 - nbits);
}
*ap = htonl(mask);
break;
case 6 :
if ((nbits > 128) || (use_inet6 == 0))
return -1;
fill6bits(nbits, ap);
break;
default :
return -1;
}
return 0;
}
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