ISO_STANDARD_ID
if (memcmp(vd->id, ISO_STANDARD_ID, sizeof vd->id) != 0)
if (memcmp(vdp->id, ISO_STANDARD_ID, sizeof(vdp->id)) != 0) {
if (memcmp(vd->id, ISO_STANDARD_ID, sizeof vd->id) != 0)
if (memcmp(vd.id, ISO_STANDARD_ID, sizeof vd.id) != 0) {
strncmp(ipd.id, ISO_STANDARD_ID, sizeof(ipd.id)) != 0 ||
if (memcmp(vd->id, ISO_STANDARD_ID, sizeof(vd->id)))
if (memcmp(vd->id, ISO_STANDARD_ID, sizeof(vd->id)) != 0)