}

func Gettimeofday(tv *Timeval) (err error) {
	err = gettimeofday(tv, nil)
	return
}

// TODO
func sendfile(outfd int, infd int, offset *int64, count int) (written int, err error) {
	return -1, ENOSYS
}

//sys	getdirent(fd int, buf []byte) (n int, err error)

func ReadDirent(fd int, buf []byte) (n int, err error) {
	return getdirent(fd, buf)
}

	ENONET          = syscall.Errno(0x40)
	ENOPKG          = syscall.Errno(0x41)
	ENOPROTOOPT     = syscall.Errno(0x5c)
	ENOSR           = syscall.Errno(0x3f)
	ENOSTR          = syscall.Errno(0x3c)
	ENOSYS          = syscall.Errno(0x26)
	ENOTCONN        = syscall.Errno(0x6b)
	ENOTEMPTY       = syscall.Errno(0x27)
	ENOTNAM         = syscall.Errno(0x76)
	ENOTRECOVERABLE = syscall.Errno(0x83)

	ENONET          = syscall.Errno(0x40)
	ENOPKG          = syscall.Errno(0x41)
	ENOPROTOOPT     = syscall.Errno(0x5c)
	ENOSR           = syscall.Errno(0x3f)
	ENOSTR          = syscall.Errno(0x3c)
	ENOSYS          = syscall.Errno(0x26)
	ENOTCONN        = syscall.Errno(0x6b)
	ENOTEMPTY       = syscall.Errno(0x27)
	ENOTNAM         = syscall.Errno(0x76)
	ENOTRECOVERABLE = syscall.Errno(0x83)

		if err1 != 0 {
			goto childerror
		}
	}

	// Set the controlling TTY to Ctty
	if sys.Setctty {
		// On AIX, TIOCSCTTY is undefined
		if TIOCSCTTY == 0 {
			err1 = ENOSYS
			goto childerror
		}
		err1 = ioctl(uintptr(sys.Ctty), uintptr(TIOCSCTTY), 0)
		if err1 != 0 {
			goto childerror
		}
	}

	// Restore original rlimit.
	if rlim != nil {

const rlimInf32 = ^uint32(0)
const rlimInf64 = ^uint64(0)

func Getrlimit(resource int, rlim *Rlimit) (err error) {
	err = Prlimit(0, resource, nil, rlim)
	if err != ENOSYS {
		return err
	}

	rl := rlimit32{}
	err = getrlimit(resource, &rl)
	if err != nil {
		return
	}

	if rl.Cur == rlimInf32 {
		rlim.Cur = rlimInf64
	} else {
		rlim.Cur = uint64(rl.Cur)
	}

	ENOMSG          = syscall.Errno(0x23)
	ENOPROTOOPT     = syscall.Errno(0x3d)
	ENOSPC          = syscall.Errno(0x1c)
	ENOSR           = syscall.Errno(0x76)
	ENOSTR          = syscall.Errno(0x7b)
	ENOSYS          = syscall.Errno(0x6d)
	ENOTBLK         = syscall.Errno(0xf)
	ENOTCONN        = syscall.Errno(0x4c)
	ENOTDIR         = syscall.Errno(0x14)
	ENOTEMPTY       = syscall.Errno(0x11)

	mnext        int64    // number of m's that have been created and next M ID
	maxmcount    int32    // maximum number of m's allowed (or die)
	nmsys        int32    // number of system m's not counted for deadlock
	nmfreed      int64    // cumulative number of freed m's

	ngsys atomic.Int32 // number of system goroutines

	pidle        puintptr // idle p's
	npidle       atomic.Int32

	ENOMSG          = syscall.Errno(0x23)
	ENOPROTOOPT     = syscall.Errno(0x3d)
	ENOSPC          = syscall.Errno(0x1c)
	ENOSR           = syscall.Errno(0x76)
	ENOSTR          = syscall.Errno(0x7b)
	ENOSYS          = syscall.Errno(0x6d)
	ENOTBLK         = syscall.Errno(0xf)
	ENOTCONN        = syscall.Errno(0x4c)
	ENOTDIR         = syscall.Errno(0x14)
	ENOTEMPTY       = syscall.Errno(0x11)

		return true
	}
	if !timer.Stop() {
		return false
	}
	timer.Reset(d)
	return true
}

func sysSocket(family, sotype, proto int) (int, error) {
	return 0, os.NewSyscallError("sysSocket", syscall.ENOSYS)
}

func fakeListen(fd *netFD, laddr sockaddr) (err error) {
	wrapErr := func(err error) error {
		if errno, ok := err.(syscall.Errno); ok {
			err = os.NewSyscallError("listen", errno)
		}

	// changing the group id. First try our current group.
	gid := Getgid()
	t.Log("gid:", gid)
	if err = Lchown(linkname, -1, gid); err != nil {
		if err, ok := err.(*PathError); ok && err.Err == syscall.ENOSYS {
			t.Skip("lchown is unavailable")
		}
		t.Fatalf("lchown %s -1 %d: %s", linkname, gid, err)
	}
	sys := dir.Sys().(*syscall.Stat_t)
	checkUidGid(t, linkname, int(sys.Uid), gid)