Function sys_chflagsat

freebsd/kern/vfs_syscalls.c:2711–2720

}
#endif
int
sys_chflagsat(struct thread *td, struct chflagsat_args *uap)
{

	if ((uap->atflag & ~(AT_SYMLINK_NOFOLLOW | AT_RESOLVE_BENEATH)) != 0)
		return (EINVAL);

	return (kern_chflagsat(td, uap->fd, uap->path, UIO_USERSPACE,
	    uap->flags, uap->atflag));
}

/*
 * Same as chflags() but doesn't follow symlinks.