get_bsz
in.dbsz = out.dbsz = get_bsz(arg);
cbsz = get_bsz(arg);
if ((cpy_cnt = get_bsz(arg)) == 0)
files_cnt = get_bsz(arg);
in.dbsz = get_bsz(arg);
out.dbsz = get_bsz(arg);
num *= get_bsz(expr + 1);
static size_t get_bsz(char *);