creat64
ofile = creat64(rname, 0600);
fso = (grow) ? open64(fsys, O_WRONLY) : creat64(fsys, 0666);
extern int creat64(const char *, mode_t);
#define creat creat64
if ((fd = creat64(fname, 0666)) < 0)
#define creat creat64
extern int creat64(const char *, mode_t);