FMASK
if ((fd = creat(bones, FMASK)) < 0)
fd = creat(lock, FMASK);
if ((fd = creat(SAVEF, FMASK)) < 0) {
if ((nfd = creat(lock, FMASK)) < 0)
fd = creat(lock, FMASK);
fp->f_flag = flag & FMASK;
fp->f_flag = FREAD|FWRITE|(flags&FMASK);
fp->f_flag = flags & FMASK;