XINP_NEXT
for (xinp = XINP_NEXT(head); xinp->xig_len > sizeof *xinp;
xinp = XINP_NEXT(xinp)) {
for (xinp = XINP_NEXT(head); xinp->xig_len > sizeof *xinp;
xinp = XINP_NEXT(xinp)) {
for (xinp = XINP_NEXT(head); xinp->xig_len > sizeof *xinp;
xinp = XINP_NEXT(xinp)) {