ISO_STANDARD_ID
if (bcmp(vd->id, ISO_STANDARD_ID, sizeof vd->id) != 0)
if (bcmp(vd->id, ISO_STANDARD_ID, sizeof(vd->id)) != 0)
if (bcmp(vd->id, ISO_STANDARD_ID, sizeof vd->id) != 0)
if (bcmp (vdp->id, ISO_STANDARD_ID, sizeof vdp->id) != 0) {