getasciipartspec
int getasciipartspec(char *, struct disklabel32 *, int, int);
if (getasciipartspec(tp, lp, part, lineno) != 0) {
if (getasciipartspec(tp, lp, part, lineno, blksize)) {
static int getasciipartspec(char *, struct disklabel64 *, int, int, uint32_t);