OFLAGS
out.fd = open(out.name, O_RDWR | OFLAGS, DEFFILEMODE);
out.fd = open(out.name, O_WRONLY | OFLAGS, DEFFILEMODE);
if ((OFLAGS(flags) & O_ACCMODE) != O_WRONLY)
*retval = OFLAGS(fp->f_flag);
flags = OFLAGS(ap->a_mode) & ~(O_CREAT|O_EXCL|O_TRUNC);