bsd/net/if.c

445 	u_int32_t bytoff, bitoff;
456 	bytoff = bitoff = 0;
462 		while ((bytoff < ifc->ifc_bmlen)
463 		    && (ifc->ifc_units[bytoff] == 0xff))
464 			bytoff++;
465 		if (bytoff >= ifc->ifc_bmlen)
467 		while ((ifc->ifc_units[bytoff] & (1 << bitoff)) != 0)
469 		unit = (bytoff << 3) + bitoff;
480 		bytoff = unit >> 3;
481 		bitoff = unit - (bytoff << 3);
487 	KASSERT((ifc->ifc_units[bytoff] & (1 << bitoff)) == 0,
489 	ifc->ifc_units[bytoff] |= (1 << bitoff);
518 	int bytoff, bitoff;
540 	bytoff = unit >> 3;
541 	bitoff = unit - (bytoff << 3);
542 	KASSERT((ifc->ifc_units[bytoff] & (1 << bitoff)) != 0,
544 	ifc->ifc_units[bytoff] &= ~(1 << bitoff);
596 	int bytoff, bitoff;
628 		bytoff = unit >> 3;
629 		bitoff = unit - (bytoff << 3);
630 		ifc->ifc_units[bytoff] |= (1 << bitoff);